Merge branch 'for-linville' of git://github.com/sgruszka/iwlegacy
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index c1c0678..98db7619 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -42,7 +42,7 @@
obj-$(CONFIG_MWL8K) += mwl8k.o
obj-$(CONFIG_IWLWIFI) += iwlwifi/
-obj-$(CONFIG_IWLWIFI_LEGACY) += iwlegacy/
+obj-$(CONFIG_IWLEGACY) += iwlegacy/
obj-$(CONFIG_RT2X00) += rt2x00/
obj-$(CONFIG_P54_COMMON) += p54/
diff --git a/drivers/net/wireless/iwlegacy/3945-debug.c b/drivers/net/wireless/iwlegacy/3945-debug.c
new file mode 100644
index 0000000..5e1a19f
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/3945-debug.c
@@ -0,0 +1,505 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *****************************************************************************/
+
+#include "common.h"
+#include "3945.h"
+
+static int
+il3945_stats_flag(struct il_priv *il, char *buf, int bufsz)
+{
+ int p = 0;
+
+ p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
+ le32_to_cpu(il->_3945.stats.flag));
+ if (le32_to_cpu(il->_3945.stats.flag) & UCODE_STATS_CLEAR_MSK)
+ p += scnprintf(buf + p, bufsz - p,
+ "\tStatistics have been cleared\n");
+ p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
+ (le32_to_cpu(il->_3945.stats.flag) &
+ UCODE_STATS_FREQUENCY_MSK) ? "2.4 GHz" : "5.2 GHz");
+ p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
+ (le32_to_cpu(il->_3945.stats.flag) &
+ UCODE_STATS_NARROW_BAND_MSK) ? "enabled" : "disabled");
+ return p;
+}
+
+ssize_t
+il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz =
+ sizeof(struct iwl39_stats_rx_phy) * 40 +
+ sizeof(struct iwl39_stats_rx_non_phy) * 40 + 400;
+ ssize_t ret;
+ struct iwl39_stats_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
+ struct iwl39_stats_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
+ struct iwl39_stats_rx_non_phy *general, *accum_general;
+ struct iwl39_stats_rx_non_phy *delta_general, *max_general;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * The statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ ofdm = &il->_3945.stats.rx.ofdm;
+ cck = &il->_3945.stats.rx.cck;
+ general = &il->_3945.stats.rx.general;
+ accum_ofdm = &il->_3945.accum_stats.rx.ofdm;
+ accum_cck = &il->_3945.accum_stats.rx.cck;
+ accum_general = &il->_3945.accum_stats.rx.general;
+ delta_ofdm = &il->_3945.delta_stats.rx.ofdm;
+ delta_cck = &il->_3945.delta_stats.rx.cck;
+ delta_general = &il->_3945.delta_stats.rx.general;
+ max_ofdm = &il->_3945.max_delta.rx.ofdm;
+ max_cck = &il->_3945.max_delta.rx.cck;
+ max_general = &il->_3945.max_delta.rx.general;
+
+ pos += il3945_stats_flag(il, buf, bufsz);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%-32s current"
+ "acumulative delta max\n",
+ "Statistics_Rx - OFDM:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "ina_cnt:",
+ le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt,
+ delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_cnt:",
+ le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
+ delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "plcp_err:",
+ le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
+ delta_ofdm->plcp_err, max_ofdm->plcp_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "crc32_err:",
+ le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
+ delta_ofdm->crc32_err, max_ofdm->crc32_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "overrun_err:",
+ le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err,
+ delta_ofdm->overrun_err, max_ofdm->overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "early_overrun_err:",
+ le32_to_cpu(ofdm->early_overrun_err),
+ accum_ofdm->early_overrun_err,
+ delta_ofdm->early_overrun_err,
+ max_ofdm->early_overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "crc32_good:",
+ le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good,
+ delta_ofdm->crc32_good, max_ofdm->crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:",
+ le32_to_cpu(ofdm->false_alarm_cnt),
+ accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt,
+ max_ofdm->false_alarm_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_sync_err_cnt:",
+ le32_to_cpu(ofdm->fina_sync_err_cnt),
+ accum_ofdm->fina_sync_err_cnt,
+ delta_ofdm->fina_sync_err_cnt,
+ max_ofdm->fina_sync_err_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sfd_timeout:",
+ le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout,
+ delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_timeout:",
+ le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout,
+ delta_ofdm->fina_timeout, max_ofdm->fina_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "unresponded_rts:",
+ le32_to_cpu(ofdm->unresponded_rts),
+ accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts,
+ max_ofdm->unresponded_rts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n",
+ "rxe_frame_lmt_ovrun:",
+ le32_to_cpu(ofdm->rxe_frame_limit_overrun),
+ accum_ofdm->rxe_frame_limit_overrun,
+ delta_ofdm->rxe_frame_limit_overrun,
+ max_ofdm->rxe_frame_limit_overrun);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sent_ack_cnt:",
+ le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt,
+ delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sent_cts_cnt:",
+ le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt,
+ delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%-32s current"
+ "acumulative delta max\n",
+ "Statistics_Rx - CCK:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "ina_cnt:",
+ le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
+ delta_cck->ina_cnt, max_cck->ina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_cnt:",
+ le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
+ delta_cck->fina_cnt, max_cck->fina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "plcp_err:",
+ le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
+ delta_cck->plcp_err, max_cck->plcp_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "crc32_err:",
+ le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
+ delta_cck->crc32_err, max_cck->crc32_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "overrun_err:",
+ le32_to_cpu(cck->overrun_err), accum_cck->overrun_err,
+ delta_cck->overrun_err, max_cck->overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "early_overrun_err:",
+ le32_to_cpu(cck->early_overrun_err),
+ accum_cck->early_overrun_err,
+ delta_cck->early_overrun_err, max_cck->early_overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "crc32_good:",
+ le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
+ delta_cck->crc32_good, max_cck->crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:",
+ le32_to_cpu(cck->false_alarm_cnt),
+ accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt,
+ max_cck->false_alarm_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_sync_err_cnt:",
+ le32_to_cpu(cck->fina_sync_err_cnt),
+ accum_cck->fina_sync_err_cnt,
+ delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sfd_timeout:",
+ le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout,
+ delta_cck->sfd_timeout, max_cck->sfd_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "fina_timeout:",
+ le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout,
+ delta_cck->fina_timeout, max_cck->fina_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "unresponded_rts:",
+ le32_to_cpu(cck->unresponded_rts),
+ accum_cck->unresponded_rts, delta_cck->unresponded_rts,
+ max_cck->unresponded_rts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n",
+ "rxe_frame_lmt_ovrun:",
+ le32_to_cpu(cck->rxe_frame_limit_overrun),
+ accum_cck->rxe_frame_limit_overrun,
+ delta_cck->rxe_frame_limit_overrun,
+ max_cck->rxe_frame_limit_overrun);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sent_ack_cnt:",
+ le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt,
+ delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sent_cts_cnt:",
+ le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt,
+ delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%-32s current"
+ "acumulative delta max\n",
+ "Statistics_Rx - GENERAL:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "bogus_cts:",
+ le32_to_cpu(general->bogus_cts), accum_general->bogus_cts,
+ delta_general->bogus_cts, max_general->bogus_cts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "bogus_ack:",
+ le32_to_cpu(general->bogus_ack), accum_general->bogus_ack,
+ delta_general->bogus_ack, max_general->bogus_ack);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "non_bssid_frames:",
+ le32_to_cpu(general->non_bssid_frames),
+ accum_general->non_bssid_frames,
+ delta_general->non_bssid_frames,
+ max_general->non_bssid_frames);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "filtered_frames:",
+ le32_to_cpu(general->filtered_frames),
+ accum_general->filtered_frames,
+ delta_general->filtered_frames,
+ max_general->filtered_frames);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n",
+ "non_channel_beacons:",
+ le32_to_cpu(general->non_channel_beacons),
+ accum_general->non_channel_beacons,
+ delta_general->non_channel_beacons,
+ max_general->non_channel_beacons);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+ssize_t
+il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz = (sizeof(struct iwl39_stats_tx) * 48) + 250;
+ ssize_t ret;
+ struct iwl39_stats_tx *tx, *accum_tx, *delta_tx, *max_tx;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * The statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ tx = &il->_3945.stats.tx;
+ accum_tx = &il->_3945.accum_stats.tx;
+ delta_tx = &il->_3945.delta_stats.tx;
+ max_tx = &il->_3945.max_delta.tx;
+ pos += il3945_stats_flag(il, buf, bufsz);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%-32s current"
+ "acumulative delta max\n",
+ "Statistics_Tx:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "preamble:",
+ le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt,
+ delta_tx->preamble_cnt, max_tx->preamble_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "rx_detected_cnt:",
+ le32_to_cpu(tx->rx_detected_cnt),
+ accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt,
+ max_tx->rx_detected_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "bt_prio_defer_cnt:",
+ le32_to_cpu(tx->bt_prio_defer_cnt),
+ accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt,
+ max_tx->bt_prio_defer_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "bt_prio_kill_cnt:",
+ le32_to_cpu(tx->bt_prio_kill_cnt),
+ accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt,
+ max_tx->bt_prio_kill_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "few_bytes_cnt:",
+ le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt,
+ delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "cts_timeout:",
+ le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
+ delta_tx->cts_timeout, max_tx->cts_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "ack_timeout:",
+ le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout,
+ delta_tx->ack_timeout, max_tx->ack_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "expected_ack_cnt:",
+ le32_to_cpu(tx->expected_ack_cnt),
+ accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt,
+ max_tx->expected_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "actual_ack_cnt:",
+ le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt,
+ delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+ssize_t
+il3945_ucode_general_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz = sizeof(struct iwl39_stats_general) * 10 + 300;
+ ssize_t ret;
+ struct iwl39_stats_general *general, *accum_general;
+ struct iwl39_stats_general *delta_general, *max_general;
+ struct stats_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
+ struct iwl39_stats_div *div, *accum_div, *delta_div, *max_div;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * The statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ general = &il->_3945.stats.general;
+ dbg = &il->_3945.stats.general.dbg;
+ div = &il->_3945.stats.general.div;
+ accum_general = &il->_3945.accum_stats.general;
+ delta_general = &il->_3945.delta_stats.general;
+ max_general = &il->_3945.max_delta.general;
+ accum_dbg = &il->_3945.accum_stats.general.dbg;
+ delta_dbg = &il->_3945.delta_stats.general.dbg;
+ max_dbg = &il->_3945.max_delta.general.dbg;
+ accum_div = &il->_3945.accum_stats.general.div;
+ delta_div = &il->_3945.delta_stats.general.div;
+ max_div = &il->_3945.max_delta.general.div;
+ pos += il3945_stats_flag(il, buf, bufsz);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%-32s current"
+ "acumulative delta max\n",
+ "Statistics_General:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "burst_check:",
+ le32_to_cpu(dbg->burst_check), accum_dbg->burst_check,
+ delta_dbg->burst_check, max_dbg->burst_check);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "burst_count:",
+ le32_to_cpu(dbg->burst_count), accum_dbg->burst_count,
+ delta_dbg->burst_count, max_dbg->burst_count);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "sleep_time:",
+ le32_to_cpu(general->sleep_time),
+ accum_general->sleep_time, delta_general->sleep_time,
+ max_general->sleep_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "slots_out:",
+ le32_to_cpu(general->slots_out), accum_general->slots_out,
+ delta_general->slots_out, max_general->slots_out);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "slots_idle:",
+ le32_to_cpu(general->slots_idle),
+ accum_general->slots_idle, delta_general->slots_idle,
+ max_general->slots_idle);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
+ le32_to_cpu(general->ttl_timestamp));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "tx_on_a:",
+ le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
+ delta_div->tx_on_a, max_div->tx_on_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "tx_on_b:",
+ le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
+ delta_div->tx_on_b, max_div->tx_on_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "exec_time:",
+ le32_to_cpu(div->exec_time), accum_div->exec_time,
+ delta_div->exec_time, max_div->exec_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " %-30s %10u %10u %10u %10u\n", "probe_time:",
+ le32_to_cpu(div->probe_time), accum_div->probe_time,
+ delta_div->probe_time, max_div->probe_time);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
new file mode 100644
index 0000000..daef6b5
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -0,0 +1,3977 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci-aspm.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/ieee80211_radiotap.h>
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#define DRV_NAME "iwl3945"
+
+#include "commands.h"
+#include "common.h"
+#include "3945.h"
+#include "iwl-spectrum.h"
+
+/*
+ * module name, copyright, version, etc.
+ */
+
+#define DRV_DESCRIPTION \
+"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+/*
+ * add "s" to indicate spectrum measurement included.
+ * we add it here to be consistent with previous releases in which
+ * this was configurable.
+ */
+#define DRV_VERSION IWLWIFI_VERSION VD "s"
+#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
+#define DRV_AUTHOR "<ilw@linux.intel.com>"
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+
+ /* module parameters */
+struct il_mod_params il3945_mod_params = {
+ .sw_crypto = 1,
+ .restart_fw = 1,
+ .disable_hw_scan = 1,
+ /* the rest are 0 by default */
+};
+
+/**
+ * il3945_get_antenna_flags - Get antenna flags for RXON command
+ * @il: eeprom and antenna fields are used to determine antenna flags
+ *
+ * il->eeprom39 is used to determine if antenna AUX/MAIN are reversed
+ * il3945_mod_params.antenna specifies the antenna diversity mode:
+ *
+ * IL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
+ * IL_ANTENNA_MAIN - Force MAIN antenna
+ * IL_ANTENNA_AUX - Force AUX antenna
+ */
+__le32
+il3945_get_antenna_flags(const struct il_priv *il)
+{
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+
+ switch (il3945_mod_params.antenna) {
+ case IL_ANTENNA_DIVERSITY:
+ return 0;
+
+ case IL_ANTENNA_MAIN:
+ if (eeprom->antenna_switch_type)
+ return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
+ return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
+
+ case IL_ANTENNA_AUX:
+ if (eeprom->antenna_switch_type)
+ return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
+ return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
+ }
+
+ /* bad antenna selector value */
+ IL_ERR("Bad antenna selector value (0x%x)\n",
+ il3945_mod_params.antenna);
+
+ return 0; /* "diversity" is default if error */
+}
+
+static int
+il3945_set_ccmp_dynamic_key_info(struct il_priv *il,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+ int ret;
+
+ key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+
+ if (sta_id == il->ctx.bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ keyconf->hw_key_idx = keyconf->keyidx;
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+ il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+ memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen);
+
+ memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen);
+
+ if ((il->stations[sta_id].sta.key.
+ key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC)
+ il->stations[sta_id].sta.key.key_offset =
+ il_get_free_ucode_key_idx(il);
+ /* else, we are overriding an existing key => no need to allocated room
+ * in uCode. */
+
+ WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+ "no space for a new key");
+
+ il->stations[sta_id].sta.key.key_flags = key_flags;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ D_INFO("hwcrypto: modify ucode station key info\n");
+
+ ret = il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return ret;
+}
+
+static int
+il3945_set_tkip_dynamic_key_info(struct il_priv *il,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ return -EOPNOTSUPP;
+}
+
+static int
+il3945_set_wep_dynamic_key_info(struct il_priv *il,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ return -EOPNOTSUPP;
+}
+
+static int
+il3945_clear_sta_key_info(struct il_priv *il, u8 sta_id)
+{
+ unsigned long flags;
+ struct il_addsta_cmd sta_cmd;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key));
+ memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo));
+ il->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ D_INFO("hwcrypto: clear ucode station key info\n");
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+static int
+il3945_set_dynamic_key(struct il_priv *il, struct ieee80211_key_conf *keyconf,
+ u8 sta_id)
+{
+ int ret = 0;
+
+ keyconf->hw_key_idx = HW_KEY_DYNAMIC;
+
+ switch (keyconf->cipher) {
+ case WLAN_CIPHER_SUITE_CCMP:
+ ret = il3945_set_ccmp_dynamic_key_info(il, keyconf, sta_id);
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ ret = il3945_set_tkip_dynamic_key_info(il, keyconf, sta_id);
+ break;
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ ret = il3945_set_wep_dynamic_key_info(il, keyconf, sta_id);
+ break;
+ default:
+ IL_ERR("Unknown alg: %s alg=%x\n", __func__, keyconf->cipher);
+ ret = -EINVAL;
+ }
+
+ D_WEP("Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n",
+ keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret);
+
+ return ret;
+}
+
+static int
+il3945_remove_static_key(struct il_priv *il)
+{
+ int ret = -EOPNOTSUPP;
+
+ return ret;
+}
+
+static int
+il3945_set_static_key(struct il_priv *il, struct ieee80211_key_conf *key)
+{
+ if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ key->cipher == WLAN_CIPHER_SUITE_WEP104)
+ return -EOPNOTSUPP;
+
+ IL_ERR("Static key invalid: cipher %x\n", key->cipher);
+ return -EINVAL;
+}
+
+static void
+il3945_clear_free_frames(struct il_priv *il)
+{
+ struct list_head *element;
+
+ D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count);
+
+ while (!list_empty(&il->free_frames)) {
+ element = il->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct il3945_frame, list));
+ il->frames_count--;
+ }
+
+ if (il->frames_count) {
+ IL_WARN("%d frames still in use. Did we lose one?\n",
+ il->frames_count);
+ il->frames_count = 0;
+ }
+}
+
+static struct il3945_frame *
+il3945_get_free_frame(struct il_priv *il)
+{
+ struct il3945_frame *frame;
+ struct list_head *element;
+ if (list_empty(&il->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IL_ERR("Could not allocate frame!\n");
+ return NULL;
+ }
+
+ il->frames_count++;
+ return frame;
+ }
+
+ element = il->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct il3945_frame, list);
+}
+
+static void
+il3945_free_frame(struct il_priv *il, struct il3945_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &il->free_frames);
+}
+
+unsigned int
+il3945_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr,
+ int left)
+{
+
+ if (!il_is_associated(il) || !il->beacon_skb)
+ return 0;
+
+ if (il->beacon_skb->len > left)
+ return 0;
+
+ memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len);
+
+ return il->beacon_skb->len;
+}
+
+static int
+il3945_send_beacon_cmd(struct il_priv *il)
+{
+ struct il3945_frame *frame;
+ unsigned int frame_size;
+ int rc;
+ u8 rate;
+
+ frame = il3945_get_free_frame(il);
+
+ if (!frame) {
+ IL_ERR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
+
+ rate = il_get_lowest_plcp(il, &il->ctx);
+
+ frame_size = il3945_hw_get_beacon_cmd(il, frame, rate);
+
+ rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]);
+
+ il3945_free_frame(il, frame);
+
+ return rc;
+}
+
+static void
+il3945_unset_hw_params(struct il_priv *il)
+{
+ if (il->_3945.shared_virt)
+ dma_free_coherent(&il->pci_dev->dev,
+ sizeof(struct il3945_shared),
+ il->_3945.shared_virt, il->_3945.shared_phys);
+}
+
+static void
+il3945_build_tx_cmd_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info,
+ struct il_device_cmd *cmd,
+ struct sk_buff *skb_frag, int sta_id)
+{
+ struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
+ struct il_hw_key *keyinfo = &il->stations[sta_id].keyinfo;
+
+ tx_cmd->sec_ctl = 0;
+
+ switch (keyinfo->cipher) {
+ case WLAN_CIPHER_SUITE_CCMP:
+ tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
+ memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen);
+ D_TX("tx_cmd with AES hwcrypto\n");
+ break;
+
+ case WLAN_CIPHER_SUITE_TKIP:
+ break;
+
+ case WLAN_CIPHER_SUITE_WEP104:
+ tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
+ /* fall through */
+ case WLAN_CIPHER_SUITE_WEP40:
+ tx_cmd->sec_ctl |=
+ TX_CMD_SEC_WEP | (info->control.hw_key->
+ hw_key_idx & TX_CMD_SEC_MSK) <<
+ TX_CMD_SEC_SHIFT;
+
+ memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen);
+
+ D_TX("Configuring packet for WEP encryption " "with key %d\n",
+ info->control.hw_key->hw_key_idx);
+ break;
+
+ default:
+ IL_ERR("Unknown encode cipher %x\n", keyinfo->cipher);
+ break;
+ }
+}
+
+/*
+ * handle build C_TX command notification.
+ */
+static void
+il3945_build_tx_cmd_basic(struct il_priv *il, struct il_device_cmd *cmd,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_hdr *hdr, u8 std_id)
+{
+ struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
+ __le32 tx_flags = tx_cmd->tx_flags;
+ __le16 fc = hdr->frame_control;
+
+ tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ tx_flags |= TX_CMD_FLG_ACK_MSK;
+ if (ieee80211_is_mgmt(fc))
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ if (ieee80211_is_probe_resp(fc) &&
+ !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
+ tx_flags |= TX_CMD_FLG_TSF_MSK;
+ } else {
+ tx_flags &= (~TX_CMD_FLG_ACK_MSK);
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ tx_cmd->sta_id = std_id;
+ if (ieee80211_has_morefrags(fc))
+ tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
+
+ if (ieee80211_is_data_qos(fc)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+ tx_cmd->tid_tspec = qc[0] & 0xf;
+ tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
+ } else {
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ il_tx_cmd_protection(il, info, fc, &tx_flags);
+
+ tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
+ if (ieee80211_is_mgmt(fc)) {
+ if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
+ tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3);
+ else
+ tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2);
+ } else {
+ tx_cmd->timeout.pm_frame_timeout = 0;
+ }
+
+ tx_cmd->driver_txop = 0;
+ tx_cmd->tx_flags = tx_flags;
+ tx_cmd->next_frame_len = 0;
+}
+
+/*
+ * start C_TX command process
+ */
+static int
+il3945_tx_skb(struct il_priv *il, struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct il3945_tx_cmd *tx_cmd;
+ struct il_tx_queue *txq = NULL;
+ struct il_queue *q = NULL;
+ struct il_device_cmd *out_cmd;
+ struct il_cmd_meta *out_meta;
+ dma_addr_t phys_addr;
+ dma_addr_t txcmd_phys;
+ int txq_id = skb_get_queue_mapping(skb);
+ u16 len, idx, hdr_len;
+ u8 id;
+ u8 unicast;
+ u8 sta_id;
+ u8 tid = 0;
+ __le16 fc;
+ u8 wait_write_ptr = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&il->lock, flags);
+ if (il_is_rfkill(il)) {
+ D_DROP("Dropping - RF KILL\n");
+ goto drop_unlock;
+ }
+
+ if ((ieee80211_get_tx_rate(il->hw, info)->hw_value & 0xFF) ==
+ IL_INVALID_RATE) {
+ IL_ERR("ERROR: No TX rate available.\n");
+ goto drop_unlock;
+ }
+
+ unicast = !is_multicast_ether_addr(hdr->addr1);
+ id = 0;
+
+ fc = hdr->frame_control;
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (ieee80211_is_auth(fc))
+ D_TX("Sending AUTH frame\n");
+ else if (ieee80211_is_assoc_req(fc))
+ D_TX("Sending ASSOC frame\n");
+ else if (ieee80211_is_reassoc_req(fc))
+ D_TX("Sending REASSOC frame\n");
+#endif
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ hdr_len = ieee80211_hdrlen(fc);
+
+ /* Find idx into station table for destination station */
+ sta_id = il_sta_id_or_broadcast(il, &il->ctx, info->control.sta);
+ if (sta_id == IL_INVALID_STATION) {
+ D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1);
+ goto drop;
+ }
+
+ D_RATE("station Id %d\n", sta_id);
+
+ if (ieee80211_is_data_qos(fc)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+ if (unlikely(tid >= MAX_TID_COUNT))
+ goto drop;
+ }
+
+ /* Descriptor for chosen Tx queue */
+ txq = &il->txq[txq_id];
+ q = &txq->q;
+
+ if ((il_queue_space(q) < q->high_mark))
+ goto drop;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ idx = il_get_cmd_idx(q, q->write_ptr, 0);
+
+ /* Set up driver data for this TFD */
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info));
+ txq->txb[q->write_ptr].skb = skb;
+ txq->txb[q->write_ptr].ctx = &il->ctx;
+
+ /* Init first empty entry in queue's array of Tx/cmd buffers */
+ out_cmd = txq->cmd[idx];
+ out_meta = &txq->meta[idx];
+ tx_cmd = (struct il3945_tx_cmd *)out_cmd->cmd.payload;
+ memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
+ memset(tx_cmd, 0, sizeof(*tx_cmd));
+
+ /*
+ * Set up the Tx-command (not MAC!) header.
+ * Store the chosen Tx queue and TFD idx within the sequence field;
+ * after Tx, uCode's Tx response will return this value so driver can
+ * locate the frame within the tx queue and do post-tx processing.
+ */
+ out_cmd->hdr.cmd = C_TX;
+ out_cmd->hdr.sequence =
+ cpu_to_le16((u16)
+ (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr)));
+
+ /* Copy MAC header from skb into command buffer */
+ memcpy(tx_cmd->hdr, hdr, hdr_len);
+
+ if (info->control.hw_key)
+ il3945_build_tx_cmd_hwcrypto(il, info, out_cmd, skb, sta_id);
+
+ /* TODO need this for burst mode later on */
+ il3945_build_tx_cmd_basic(il, out_cmd, info, hdr, sta_id);
+
+ /* set is_hcca to 0; it probably will never be implemented */
+ il3945_hw_build_tx_cmd_rate(il, out_cmd, info, hdr, sta_id, 0);
+
+ /* Total # bytes to be transmitted */
+ len = (u16) skb->len;
+ tx_cmd->len = cpu_to_le16(len);
+
+ il_dbg_log_tx_data_frame(il, len, hdr);
+ il_update_stats(il, true, fc, len);
+ tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
+ tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
+
+ if (!ieee80211_has_morefrags(hdr->frame_control)) {
+ txq->need_update = 1;
+ } else {
+ wait_write_ptr = 1;
+ txq->need_update = 0;
+ }
+
+ D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence));
+ D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags));
+ il_print_hex_dump(il, IL_DL_TX, tx_cmd, sizeof(*tx_cmd));
+ il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr,
+ ieee80211_hdrlen(fc));
+
+ /*
+ * Use the first empty entry in this queue's command buffer array
+ * to contain the Tx command and MAC header concatenated together
+ * (payload data will be in another buffer).
+ * Size of this varies, due to varying MAC header length.
+ * If end is not dword aligned, we'll have 2 extra bytes at the end
+ * of the MAC header (device reads on dword boundaries).
+ * We'll tell device about this padding later.
+ */
+ len =
+ sizeof(struct il3945_tx_cmd) + sizeof(struct il_cmd_header) +
+ hdr_len;
+ len = (len + 3) & ~3;
+
+ /* Physical address of this Tx command's header (not MAC header!),
+ * within command buffer array. */
+ txcmd_phys =
+ pci_map_single(il->pci_dev, &out_cmd->hdr, len, PCI_DMA_TODEVICE);
+ /* we do not map meta data ... so we can safely access address to
+ * provide to unmap command*/
+ dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
+ dma_unmap_len_set(out_meta, len, len);
+
+ /* Add buffer containing Tx command and MAC(!) header to TFD's
+ * first entry */
+ il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, len, 1,
+ 0);
+
+ /* Set up TFD's 2nd entry to point directly to remainder of skb,
+ * if any (802.11 null frames have no payload). */
+ len = skb->len - hdr_len;
+ if (len) {
+ phys_addr =
+ pci_map_single(il->pci_dev, skb->data + hdr_len, len,
+ PCI_DMA_TODEVICE);
+ il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr,
+ len, 0, U32_PAD(len));
+ }
+
+ /* Tell device the write idx *just past* this latest filled TFD */
+ q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd);
+ il_txq_update_write_ptr(il, txq);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ if (il_queue_space(q) < q->high_mark && il->mac80211_registered) {
+ if (wait_write_ptr) {
+ spin_lock_irqsave(&il->lock, flags);
+ txq->need_update = 1;
+ il_txq_update_write_ptr(il, txq);
+ spin_unlock_irqrestore(&il->lock, flags);
+ }
+
+ il_stop_queue(il, txq);
+ }
+
+ return 0;
+
+drop_unlock:
+ spin_unlock_irqrestore(&il->lock, flags);
+drop:
+ return -1;
+}
+
+static int
+il3945_get_measurement(struct il_priv *il,
+ struct ieee80211_measurement_params *params, u8 type)
+{
+ struct il_spectrum_cmd spectrum;
+ struct il_rx_pkt *pkt;
+ struct il_host_cmd cmd = {
+ .id = C_SPECTRUM_MEASUREMENT,
+ .data = (void *)&spectrum,
+ .flags = CMD_WANT_SKB,
+ };
+ u32 add_time = le64_to_cpu(params->start_time);
+ int rc;
+ int spectrum_resp_status;
+ int duration = le16_to_cpu(params->duration);
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (il_is_associated(il))
+ add_time =
+ il_usecs_to_beacons(il,
+ le64_to_cpu(params->start_time) -
+ il->_3945.last_tsf,
+ le16_to_cpu(ctx->timing.
+ beacon_interval));
+
+ memset(&spectrum, 0, sizeof(spectrum));
+
+ spectrum.channel_count = cpu_to_le16(1);
+ spectrum.flags =
+ RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
+ spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
+ cmd.len = sizeof(spectrum);
+ spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
+
+ if (il_is_associated(il))
+ spectrum.start_time =
+ il_add_beacon_time(il, il->_3945.last_beacon_time, add_time,
+ le16_to_cpu(ctx->timing.
+ beacon_interval));
+ else
+ spectrum.start_time = 0;
+
+ spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
+ spectrum.channels[0].channel = params->channel;
+ spectrum.channels[0].type = type;
+ if (ctx->active.flags & RXON_FLG_BAND_24G_MSK)
+ spectrum.flags |=
+ RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_TGG_PROTECT_MSK;
+
+ rc = il_send_cmd_sync(il, &cmd);
+ if (rc)
+ return rc;
+
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from N_RX_ON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status);
+ switch (spectrum_resp_status) {
+ case 0: /* Command will be handled */
+ if (pkt->u.spectrum.id != 0xff) {
+ D_INFO("Replaced existing measurement: %d\n",
+ pkt->u.spectrum.id);
+ il->measurement_status &= ~MEASUREMENT_READY;
+ }
+ il->measurement_status |= MEASUREMENT_ACTIVE;
+ rc = 0;
+ break;
+
+ case 1: /* Command will not be handled */
+ rc = -EAGAIN;
+ break;
+ }
+
+ il_free_pages(il, cmd.reply_page);
+
+ return rc;
+}
+
+static void
+il3945_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_alive_resp *palive;
+ struct delayed_work *pwork;
+
+ palive = &pkt->u.alive_frame;
+
+ D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type, palive->ver_subtype);
+
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ D_INFO("Initialization Alive received.\n");
+ memcpy(&il->card_alive_init, &pkt->u.alive_frame,
+ sizeof(struct il_alive_resp));
+ pwork = &il->init_alive_start;
+ } else {
+ D_INFO("Runtime Alive received.\n");
+ memcpy(&il->card_alive, &pkt->u.alive_frame,
+ sizeof(struct il_alive_resp));
+ pwork = &il->alive_start;
+ il3945_disable_events(il);
+ }
+
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5));
+ else
+ IL_WARN("uCode did not respond OK.\n");
+}
+
+static void
+il3945_hdl_add_sta(struct il_priv *il, struct il_rx_buf *rxb)
+{
+#ifdef CONFIG_IWLEGACY_DEBUG
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+#endif
+
+ D_RX("Received C_ADD_STA: 0x%02X\n", pkt->u.status);
+}
+
+static void
+il3945_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il3945_beacon_notif *beacon = &(pkt->u.beacon_status);
+#ifdef CONFIG_IWLEGACY_DEBUG
+ u8 rate = beacon->beacon_notify_hdr.rate;
+
+ D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+ il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void
+il3945_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = il->status;
+
+ IL_WARN("Card state received: HW:%s SW:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On");
+
+ _il_wr(il, CSR_UCODE_DRV_GP1_SET, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ if (flags & HW_CARD_DISABLED)
+ set_bit(S_RF_KILL_HW, &il->status);
+ else
+ clear_bit(S_RF_KILL_HW, &il->status);
+
+ il_scan_cancel(il);
+
+ if ((test_bit(S_RF_KILL_HW, &status) !=
+ test_bit(S_RF_KILL_HW, &il->status)))
+ wiphy_rfkill_set_hw_state(il->hw->wiphy,
+ test_bit(S_RF_KILL_HW, &il->status));
+ else
+ wake_up(&il->wait_command_queue);
+}
+
+/**
+ * il3945_setup_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void
+il3945_setup_handlers(struct il_priv *il)
+{
+ il->handlers[N_ALIVE] = il3945_hdl_alive;
+ il->handlers[C_ADD_STA] = il3945_hdl_add_sta;
+ il->handlers[N_ERROR] = il_hdl_error;
+ il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa;
+ il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement;
+ il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep;
+ il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats;
+ il->handlers[N_BEACON] = il3945_hdl_beacon;
+
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * stats request from the host as well as for the periodic
+ * stats notifications (after received beacons) from the uCode.
+ */
+ il->handlers[C_STATS] = il3945_hdl_c_stats;
+ il->handlers[N_STATS] = il3945_hdl_stats;
+
+ il_setup_rx_scan_handlers(il);
+ il->handlers[N_CARD_STATE] = il3945_hdl_card_state;
+
+ /* Set up hardware specific Rx handlers */
+ il3945_hw_handler_setup(il);
+}
+
+/************************** RX-FUNCTIONS ****************************/
+/*
+ * Rx theory of operation
+ *
+ * The host allocates 32 DMA target addresses and passes the host address
+ * to the firmware at register IL_RFDS_TBL_LOWER + N * RFD_SIZE where N is
+ * 0 to 31
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two idx registers for managing the Rx buffers.
+ *
+ * The READ idx maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ idx is managed by the firmware once the card is enabled.
+ *
+ * The WRITE idx maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization, the host sets up the READ queue position to the first
+ * IDX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer, it will advance the READ idx
+ * and fire the RX interrupt. The driver can then query the READ idx and
+ * process as many packets as possible, moving the WRITE idx forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
+ * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ * to replenish the iwl->rxq->rx_free.
+ * + In il3945_rx_replenish (scheduled) if 'processed' != 'read' then the
+ * iwl->rxq is replenished and the READ IDX is updated (updating the
+ * 'processed' and 'read' driver idxes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ * detached from the iwl->rxq. The driver 'processed' idx is updated.
+ * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
+ * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
+ * IDX is not incremented and iwl->status(RX_STALLED) is set. If there
+ * were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * il3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
+ * il3945_rx_queue_restock
+ * il3945_rx_queue_restock() Moves available buffers from rx_free into Rx
+ * queue, updates firmware pointers, and updates
+ * the WRITE idx. If insufficient rx_free buffers
+ * are available, schedules il3945_rx_replenish
+ *
+ * -- enable interrupts --
+ * ISR - il3945_rx() Detach il_rx_bufs from pool up to the
+ * READ IDX, detaching the SKB from the pool.
+ * Moves the packet buffer from queue to rx_used.
+ * Calls il3945_rx_queue_restock to refill any empty
+ * slots.
+ * ...
+ *
+ */
+
+/**
+ * il3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
+ */
+static inline __le32
+il3945_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr)
+{
+ return cpu_to_le32((u32) dma_addr);
+}
+
+/**
+ * il3945_rx_queue_restock - refill RX queue from pre-allocated pool
+ *
+ * If there are slots in the RX queue that need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can, pulling from rx_free.
+ *
+ * This moves the 'write' idx forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+static void
+il3945_rx_queue_restock(struct il_priv *il)
+{
+ struct il_rx_queue *rxq = &il->rxq;
+ struct list_head *element;
+ struct il_rx_buf *rxb;
+ unsigned long flags;
+ int write;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ write = rxq->write & ~0x7;
+ while (il_rx_queue_space(rxq) > 0 && rxq->free_count) {
+ /* Get next free Rx buffer, remove from free list */
+ element = rxq->rx_free.next;
+ rxb = list_entry(element, struct il_rx_buf, list);
+ list_del(element);
+
+ /* Point to Rx buffer via next RBD in circular buffer */
+ rxq->bd[rxq->write] =
+ il3945_dma_addr2rbd_ptr(il, rxb->page_dma);
+ rxq->queue[rxq->write] = rxb;
+ rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
+ rxq->free_count--;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ /* If the pre-allocated buffer pool is dropping low, schedule to
+ * refill it */
+ if (rxq->free_count <= RX_LOW_WATERMARK)
+ queue_work(il->workqueue, &il->rx_replenish);
+
+ /* If we've added more space for the firmware to place data, tell it.
+ * Increment device's write pointer in multiples of 8. */
+ if (rxq->write_actual != (rxq->write & ~0x7) ||
+ abs(rxq->write - rxq->read) > 7) {
+ spin_lock_irqsave(&rxq->lock, flags);
+ rxq->need_update = 1;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ il_rx_queue_update_write_ptr(il, rxq);
+ }
+}
+
+/**
+ * il3945_rx_replenish - Move all used packet from rx_used to rx_free
+ *
+ * When moving to rx_free an SKB is allocated for the slot.
+ *
+ * Also restock the Rx queue via il3945_rx_queue_restock.
+ * This is called as a scheduled work item (except for during initialization)
+ */
+static void
+il3945_rx_allocate(struct il_priv *il, gfp_t priority)
+{
+ struct il_rx_queue *rxq = &il->rxq;
+ struct list_head *element;
+ struct il_rx_buf *rxb;
+ struct page *page;
+ unsigned long flags;
+ gfp_t gfp_mask = priority;
+
+ while (1) {
+ spin_lock_irqsave(&rxq->lock, flags);
+
+ if (list_empty(&rxq->rx_used)) {
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ if (rxq->free_count > RX_LOW_WATERMARK)
+ gfp_mask |= __GFP_NOWARN;
+
+ if (il->hw_params.rx_page_order > 0)
+ gfp_mask |= __GFP_COMP;
+
+ /* Alloc a new receive buffer */
+ page = alloc_pages(gfp_mask, il->hw_params.rx_page_order);
+ if (!page) {
+ if (net_ratelimit())
+ D_INFO("Failed to allocate SKB buffer.\n");
+ if (rxq->free_count <= RX_LOW_WATERMARK &&
+ net_ratelimit())
+ IL_ERR("Failed to allocate SKB buffer with %0x."
+ "Only %u free buffers remaining.\n",
+ priority, rxq->free_count);
+ /* We don't reschedule replenish work here -- we will
+ * call the restock method and if it still needs
+ * more buffers it will schedule replenish */
+ break;
+ }
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ if (list_empty(&rxq->rx_used)) {
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ __free_pages(page, il->hw_params.rx_page_order);
+ return;
+ }
+ element = rxq->rx_used.next;
+ rxb = list_entry(element, struct il_rx_buf, list);
+ list_del(element);
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ rxb->page = page;
+ /* Get physical address of RB/SKB */
+ rxb->page_dma =
+ pci_map_page(il->pci_dev, page, 0,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+
+ spin_lock_irqsave(&rxq->lock, flags);
+
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ il->alloc_rxb_page++;
+
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ }
+}
+
+void
+il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ unsigned long flags;
+ int i;
+ spin_lock_irqsave(&rxq->lock, flags);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].page != NULL) {
+ pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ __il_free_pages(il, rxq->pool[i].page);
+ rxq->pool[i].page = NULL;
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->write_actual = 0;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+void
+il3945_rx_replenish(void *data)
+{
+ struct il_priv *il = data;
+ unsigned long flags;
+
+ il3945_rx_allocate(il, GFP_KERNEL);
+
+ spin_lock_irqsave(&il->lock, flags);
+ il3945_rx_queue_restock(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+}
+
+static void
+il3945_rx_replenish_now(struct il_priv *il)
+{
+ il3945_rx_allocate(il, GFP_ATOMIC);
+
+ il3945_rx_queue_restock(il);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have its SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+static void
+il3945_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ int i;
+ for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+ if (rxq->pool[i].page != NULL) {
+ pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ __il_free_pages(il, rxq->pool[i].page);
+ rxq->pool[i].page = NULL;
+ }
+ }
+
+ dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->bd_dma);
+ dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status),
+ rxq->rb_stts, rxq->rb_stts_dma);
+ rxq->bd = NULL;
+ rxq->rb_stts = NULL;
+}
+
+/* Convert linear signal-to-noise ratio into dB */
+static u8 ratio2dB[100] = {
+/* 0 1 2 3 4 5 6 7 8 9 */
+ 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
+ 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
+ 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
+ 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
+ 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
+ 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
+ 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
+ 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
+ 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
+ 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
+};
+
+/* Calculates a relative dB value from a ratio of linear
+ * (i.e. not dB) signal levels.
+ * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
+int
+il3945_calc_db_from_ratio(int sig_ratio)
+{
+ /* 1000:1 or higher just report as 60 dB */
+ if (sig_ratio >= 1000)
+ return 60;
+
+ /* 100:1 or higher, divide by 10 and use table,
+ * add 20 dB to make up for divide by 10 */
+ if (sig_ratio >= 100)
+ return 20 + (int)ratio2dB[sig_ratio / 10];
+
+ /* We shouldn't see this */
+ if (sig_ratio < 1)
+ return 0;
+
+ /* Use table for ratios 1:1 - 99:1 */
+ return (int)ratio2dB[sig_ratio];
+}
+
+/**
+ * il3945_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the il->handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+static void
+il3945_rx_handle(struct il_priv *il)
+{
+ struct il_rx_buf *rxb;
+ struct il_rx_pkt *pkt;
+ struct il_rx_queue *rxq = &il->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 8;
+ int total_empty = 0;
+
+ /* uCode's read idx (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
+ i = rxq->read;
+
+ /* calculate total frames need to be restock after handling RX */
+ total_empty = r - rxq->write_actual;
+ if (total_empty < 0)
+ total_empty += RX_QUEUE_SIZE;
+
+ if (total_empty > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ D_RX("r = %d, i = %d\n", r, i);
+
+ while (i != r) {
+ int len;
+
+ rxb = rxq->queue[i];
+
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
+
+ rxq->queue[i] = NULL;
+
+ pci_unmap_page(il->pci_dev, rxb->page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ pkt = rxb_addr(rxb);
+
+ len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK;
+ len += sizeof(u32); /* account for status word */
+
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ pkt->hdr.cmd != N_STATS && pkt->hdr.cmd != C_TX;
+
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * handlers table. See il3945_setup_handlers() */
+ if (il->handlers[pkt->hdr.cmd]) {
+ D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i,
+ il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ il->isr_stats.handlers[pkt->hdr.cmd]++;
+ il->handlers[pkt->hdr.cmd] (il, rxb);
+ } else {
+ /* No handling needed */
+ D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r,
+ i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ }
+
+ /*
+ * XXX: After here, we should always check rxb->page
+ * against NULL before touching it or its virtual
+ * memory (pkt). Because some handler might have
+ * already taken or freed the pages.
+ */
+
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the buffer to caller,
+ * and fire off the (possibly) blocking il_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb->page)
+ il_tx_cmd_complete(il, rxb);
+ else
+ IL_WARN("Claim null rxb?\n");
+ }
+
+ /* Reuse the page if possible. For notification packets and
+ * SKBs that fail to Rx correctly, add them back into the
+ * rx_free list for reuse later. */
+ spin_lock_irqsave(&rxq->lock, flags);
+ if (rxb->page != NULL) {
+ rxb->page_dma =
+ pci_map_page(il->pci_dev, rxb->page, 0,
+ PAGE_SIZE << il->hw_params.
+ rx_page_order, PCI_DMA_FROMDEVICE);
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ } else
+ list_add_tail(&rxb->list, &rxq->rx_used);
+
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode won't assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ rxq->read = i;
+ il3945_rx_replenish_now(il);
+ count = 0;
+ }
+ }
+ }
+
+ /* Backtrack one entry */
+ rxq->read = i;
+ if (fill_rx)
+ il3945_rx_replenish_now(il);
+ else
+ il3945_rx_queue_restock(il);
+}
+
+/* call this function to flush any scheduled tasklet */
+static inline void
+il3945_synchronize_irq(struct il_priv *il)
+{
+ /* wait to make sure we flush pending tasklet */
+ synchronize_irq(il->pci_dev->irq);
+ tasklet_kill(&il->irq_tasklet);
+}
+
+static const char *
+il3945_desc_lookup(int i)
+{
+ switch (i) {
+ case 1:
+ return "FAIL";
+ case 2:
+ return "BAD_PARAM";
+ case 3:
+ return "BAD_CHECKSUM";
+ case 4:
+ return "NMI_INTERRUPT";
+ case 5:
+ return "SYSASSERT";
+ case 6:
+ return "FATAL_ERROR";
+ }
+
+ return "UNKNOWN";
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+void
+il3945_dump_nic_error_log(struct il_priv *il)
+{
+ u32 i;
+ u32 desc, time, count, base, data1;
+ u32 blink1, blink2, ilink1, ilink2;
+
+ base = le32_to_cpu(il->card_alive.error_event_table_ptr);
+
+ if (!il3945_hw_valid_rtc_data_addr(base)) {
+ IL_ERR("Not valid error log pointer 0x%08X\n", base);
+ return;
+ }
+
+ count = il_read_targ_mem(il, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IL_ERR("Start IWL Error Log Dump:\n");
+ IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count);
+ }
+
+ IL_ERR("Desc Time asrtPC blink2 "
+ "ilink1 nmiPC Line\n");
+ for (i = ERROR_START_OFFSET;
+ i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
+ i += ERROR_ELEM_SIZE) {
+ desc = il_read_targ_mem(il, base + i);
+ time = il_read_targ_mem(il, base + i + 1 * sizeof(u32));
+ blink1 = il_read_targ_mem(il, base + i + 2 * sizeof(u32));
+ blink2 = il_read_targ_mem(il, base + i + 3 * sizeof(u32));
+ ilink1 = il_read_targ_mem(il, base + i + 4 * sizeof(u32));
+ ilink2 = il_read_targ_mem(il, base + i + 5 * sizeof(u32));
+ data1 = il_read_targ_mem(il, base + i + 6 * sizeof(u32));
+
+ IL_ERR("%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
+ il3945_desc_lookup(desc), desc, time, blink1, blink2,
+ ilink1, ilink2, data1);
+ }
+}
+
+static void
+il3945_irq_tasklet(struct il_priv *il)
+{
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+#ifdef CONFIG_IWLEGACY_DEBUG
+ u32 inta_mask;
+#endif
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = _il_rd(il, CSR_INT);
+ _il_wr(il, CSR_INT, inta);
+
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
+ _il_wr(il, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & IL_DL_ISR) {
+ /* just for debug */
+ inta_mask = _il_rd(il, CSR_INT_MASK);
+ D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta,
+ inta_mask, inta_fh);
+ }
+#endif
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR39_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR39_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
+
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IL_ERR("Hardware error detected. Restarting.\n");
+
+ /* Tell the device to stop sending interrupts */
+ il_disable_interrupts(il);
+
+ il->isr_stats.hw++;
+ il_irq_handle_error(il);
+
+ handled |= CSR_INT_BIT_HW_ERR;
+
+ return;
+ }
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & (IL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_SCD) {
+ D_ISR("Scheduler finished to transmit "
+ "the frame/frames.\n");
+ il->isr_stats.sch++;
+ }
+
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE) {
+ D_ISR("Alive interrupt\n");
+ il->isr_stats.alive++;
+ }
+ }
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
+
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IL_ERR("Microcode SW error detected. " "Restarting 0x%X.\n",
+ inta);
+ il->isr_stats.sw++;
+ il_irq_handle_error(il);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
+
+ /* uCode wakes up after power-down sleep */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ D_ISR("Wakeup interrupt\n");
+ il_rx_queue_update_write_ptr(il, &il->rxq);
+ il_txq_update_write_ptr(il, &il->txq[0]);
+ il_txq_update_write_ptr(il, &il->txq[1]);
+ il_txq_update_write_ptr(il, &il->txq[2]);
+ il_txq_update_write_ptr(il, &il->txq[3]);
+ il_txq_update_write_ptr(il, &il->txq[4]);
+ il_txq_update_write_ptr(il, &il->txq[5]);
+
+ il->isr_stats.wakeup++;
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
+
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ il3945_rx_handle(il);
+ il->isr_stats.rx++;
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
+
+ if (inta & CSR_INT_BIT_FH_TX) {
+ D_ISR("Tx interrupt\n");
+ il->isr_stats.tx++;
+
+ _il_wr(il, CSR_FH_INT_STATUS, (1 << 6));
+ il_wr(il, FH39_TCSR_CREDIT(FH39_SRVC_CHNL), 0x0);
+ handled |= CSR_INT_BIT_FH_TX;
+ }
+
+ if (inta & ~handled) {
+ IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+ il->isr_stats.unhandled++;
+ }
+
+ if (inta & ~il->inta_mask) {
+ IL_WARN("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~il->inta_mask);
+ IL_WARN(" with inta_fh = 0x%08x\n", inta_fh);
+ }
+
+ /* Re-enable all interrupts */
+ /* only Re-enable if disabled by irq */
+ if (test_bit(S_INT_ENABLED, &il->status))
+ il_enable_interrupts(il);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & (IL_DL_ISR)) {
+ inta = _il_rd(il, CSR_INT);
+ inta_mask = _il_rd(il, CSR_INT_MASK);
+ inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
+ D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+}
+
+static int
+il3945_get_channels_for_scan(struct il_priv *il, enum ieee80211_band band,
+ u8 is_active, u8 n_probes,
+ struct il3945_scan_channel *scan_ch,
+ struct ieee80211_vif *vif)
+{
+ struct ieee80211_channel *chan;
+ const struct ieee80211_supported_band *sband;
+ const struct il_channel_info *ch_info;
+ u16 passive_dwell = 0;
+ u16 active_dwell = 0;
+ int added, i;
+
+ sband = il_get_hw_mode(il, band);
+ if (!sband)
+ return 0;
+
+ active_dwell = il_get_active_dwell_time(il, band, n_probes);
+ passive_dwell = il_get_passive_dwell_time(il, band, vif);
+
+ if (passive_dwell <= active_dwell)
+ passive_dwell = active_dwell + 1;
+
+ for (i = 0, added = 0; i < il->scan_request->n_channels; i++) {
+ chan = il->scan_request->channels[i];
+
+ if (chan->band != band)
+ continue;
+
+ scan_ch->channel = chan->hw_value;
+
+ ch_info = il_get_channel_info(il, band, scan_ch->channel);
+ if (!il_is_channel_valid(ch_info)) {
+ D_SCAN("Channel %d is INVALID for this band.\n",
+ scan_ch->channel);
+ continue;
+ }
+
+ scan_ch->active_dwell = cpu_to_le16(active_dwell);
+ scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+ /* If passive , set up for auto-switch
+ * and use long active_dwell time.
+ */
+ if (!is_active || il_is_channel_passive(ch_info) ||
+ (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
+ scan_ch->type = 0; /* passive */
+ if (IL_UCODE_API(il->ucode_ver) == 1)
+ scan_ch->active_dwell =
+ cpu_to_le16(passive_dwell - 1);
+ } else {
+ scan_ch->type = 1; /* active */
+ }
+
+ /* Set direct probe bits. These may be used both for active
+ * scan channels (probes gets sent right away),
+ * or for passive channels (probes get se sent only after
+ * hearing clear Rx packet).*/
+ if (IL_UCODE_API(il->ucode_ver) >= 2) {
+ if (n_probes)
+ scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes);
+ } else {
+ /* uCode v1 does not allow setting direct probe bits on
+ * passive channel. */
+ if ((scan_ch->type & 1) && n_probes)
+ scan_ch->type |= IL39_SCAN_PROBE_MASK(n_probes);
+ }
+
+ /* Set txpower levels to defaults */
+ scan_ch->tpc.dsp_atten = 110;
+ /* scan_pwr_info->tpc.dsp_atten; */
+
+ /*scan_pwr_info->tpc.tx_gain; */
+ if (band == IEEE80211_BAND_5GHZ)
+ scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
+ else {
+ scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
+ /* NOTE: if we were doing 6Mb OFDM for scans we'd use
+ * power level:
+ * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
+ */
+ }
+
+ D_SCAN("Scanning %d [%s %d]\n", scan_ch->channel,
+ (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
+ (scan_ch->type & 1) ? active_dwell : passive_dwell);
+
+ scan_ch++;
+ added++;
+ }
+
+ D_SCAN("total channels to scan %d\n", added);
+ return added;
+}
+
+static void
+il3945_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates)
+{
+ int i;
+
+ for (i = 0; i < RATE_COUNT_LEGACY; i++) {
+ rates[i].bitrate = il3945_rates[i].ieee * 5;
+ rates[i].hw_value = i; /* Rate scaling will work on idxes */
+ rates[i].hw_value_short = i;
+ rates[i].flags = 0;
+ if (i > IL39_LAST_OFDM_RATE || i < IL_FIRST_OFDM_RATE) {
+ /*
+ * If CCK != 1M then set short preamble rate flag.
+ */
+ rates[i].flags |=
+ (il3945_rates[i].plcp ==
+ 10) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE;
+ }
+ }
+}
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void
+il3945_dealloc_ucode_pci(struct il_priv *il)
+{
+ il_free_fw_desc(il->pci_dev, &il->ucode_code);
+ il_free_fw_desc(il->pci_dev, &il->ucode_data);
+ il_free_fw_desc(il->pci_dev, &il->ucode_data_backup);
+ il_free_fw_desc(il->pci_dev, &il->ucode_init);
+ il_free_fw_desc(il->pci_dev, &il->ucode_init_data);
+ il_free_fw_desc(il->pci_dev, &il->ucode_boot);
+}
+
+/**
+ * il3945_verify_inst_full - verify runtime uCode image in card vs. host,
+ * looking at all data.
+ */
+static int
+il3945_verify_inst_full(struct il_priv *il, __le32 * image, u32 len)
+{
+ u32 val;
+ u32 save_len = len;
+ int rc = 0;
+ u32 errcnt;
+
+ D_INFO("ucode inst image size is %u\n", len);
+
+ il_wr(il, HBUS_TARG_MEM_RADDR, IL39_RTC_INST_LOWER_BOUND);
+
+ errcnt = 0;
+ for (; len > 0; len -= sizeof(u32), image++) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IL_DL_IO is set */
+ val = _il_rd(il, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ IL_ERR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ save_len - len, val, le32_to_cpu(*image));
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 20)
+ break;
+ }
+ }
+
+ if (!errcnt)
+ D_INFO("ucode image in INSTRUCTION memory is good\n");
+
+ return rc;
+}
+
+/**
+ * il3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ * using sample data 100 bytes apart. If these sample points are good,
+ * it's a pretty good bet that everything between them is good, too.
+ */
+static int
+il3945_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len)
+{
+ u32 val;
+ int rc = 0;
+ u32 errcnt = 0;
+ u32 i;
+
+ D_INFO("ucode inst image size is %u\n", len);
+
+ for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IL_DL_IO is set */
+ il_wr(il, HBUS_TARG_MEM_RADDR, i + IL39_RTC_INST_LOWER_BOUND);
+ val = _il_rd(il, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+#if 0 /* Enable this if you want to see details */
+ IL_ERR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n", i, val,
+ *image);
+#endif
+ rc = -EIO;
+ errcnt++;
+ if (errcnt >= 3)
+ break;
+ }
+ }
+
+ return rc;
+}
+
+/**
+ * il3945_verify_ucode - determine which instruction image is in SRAM,
+ * and verify its contents
+ */
+static int
+il3945_verify_ucode(struct il_priv *il)
+{
+ __le32 *image;
+ u32 len;
+ int rc = 0;
+
+ /* Try bootstrap */
+ image = (__le32 *) il->ucode_boot.v_addr;
+ len = il->ucode_boot.len;
+ rc = il3945_verify_inst_sparse(il, image, len);
+ if (rc == 0) {
+ D_INFO("Bootstrap uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try initialize */
+ image = (__le32 *) il->ucode_init.v_addr;
+ len = il->ucode_init.len;
+ rc = il3945_verify_inst_sparse(il, image, len);
+ if (rc == 0) {
+ D_INFO("Initialize uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try runtime/protocol */
+ image = (__le32 *) il->ucode_code.v_addr;
+ len = il->ucode_code.len;
+ rc = il3945_verify_inst_sparse(il, image, len);
+ if (rc == 0) {
+ D_INFO("Runtime uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+ /* Since nothing seems to match, show first several data entries in
+ * instruction SRAM, so maybe visual inspection will give a clue.
+ * Selection of bootstrap image (vs. other images) is arbitrary. */
+ image = (__le32 *) il->ucode_boot.v_addr;
+ len = il->ucode_boot.len;
+ rc = il3945_verify_inst_full(il, image, len);
+
+ return rc;
+}
+
+static void
+il3945_nic_start(struct il_priv *il)
+{
+ /* Remove all resets to allow NIC to operate */
+ _il_wr(il, CSR_RESET, 0);
+}
+
+#define IL3945_UCODE_GET(item) \
+static u32 il3945_ucode_get_##item(const struct il_ucode_header *ucode)\
+{ \
+ return le32_to_cpu(ucode->v1.item); \
+}
+
+static u32
+il3945_ucode_get_header_size(u32 api_ver)
+{
+ return 24;
+}
+
+static u8 *
+il3945_ucode_get_data(const struct il_ucode_header *ucode)
+{
+ return (u8 *) ucode->v1.data;
+}
+
+IL3945_UCODE_GET(inst_size);
+IL3945_UCODE_GET(data_size);
+IL3945_UCODE_GET(init_size);
+IL3945_UCODE_GET(init_data_size);
+IL3945_UCODE_GET(boot_size);
+
+/**
+ * il3945_read_ucode - Read uCode images from disk file.
+ *
+ * Copy into buffers for card to fetch via bus-mastering
+ */
+static int
+il3945_read_ucode(struct il_priv *il)
+{
+ const struct il_ucode_header *ucode;
+ int ret = -EINVAL, idx;
+ const struct firmware *ucode_raw;
+ /* firmware file name contains uCode/driver compatibility version */
+ const char *name_pre = il->cfg->fw_name_pre;
+ const unsigned int api_max = il->cfg->ucode_api_max;
+ const unsigned int api_min = il->cfg->ucode_api_min;
+ char buf[25];
+ u8 *src;
+ size_t len;
+ u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
+
+ /* Ask kernel firmware_class module to get the boot firmware off disk.
+ * request_firmware() is synchronous, file is in memory on return. */
+ for (idx = api_max; idx >= api_min; idx--) {
+ sprintf(buf, "%s%u%s", name_pre, idx, ".ucode");
+ ret = request_firmware(&ucode_raw, buf, &il->pci_dev->dev);
+ if (ret < 0) {
+ IL_ERR("%s firmware file req failed: %d\n", buf, ret);
+ if (ret == -ENOENT)
+ continue;
+ else
+ goto error;
+ } else {
+ if (idx < api_max)
+ IL_ERR("Loaded firmware %s, "
+ "which is deprecated. "
+ " Please use API v%u instead.\n", buf,
+ api_max);
+ D_INFO("Got firmware '%s' file "
+ "(%zd bytes) from disk\n", buf, ucode_raw->size);
+ break;
+ }
+ }
+
+ if (ret < 0)
+ goto error;
+
+ /* Make sure that we got at least our header! */
+ if (ucode_raw->size < il3945_ucode_get_header_size(1)) {
+ IL_ERR("File size way too small!\n");
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (struct il_ucode_header *)ucode_raw->data;
+
+ il->ucode_ver = le32_to_cpu(ucode->ver);
+ api_ver = IL_UCODE_API(il->ucode_ver);
+ inst_size = il3945_ucode_get_inst_size(ucode);
+ data_size = il3945_ucode_get_data_size(ucode);
+ init_size = il3945_ucode_get_init_size(ucode);
+ init_data_size = il3945_ucode_get_init_data_size(ucode);
+ boot_size = il3945_ucode_get_boot_size(ucode);
+ src = il3945_ucode_get_data(ucode);
+
+ /* api_ver should match the api version forming part of the
+ * firmware filename ... but we don't check for that and only rely
+ * on the API version read from firmware header from here on forward */
+
+ if (api_ver < api_min || api_ver > api_max) {
+ IL_ERR("Driver unable to support your firmware API. "
+ "Driver supports v%u, firmware is v%u.\n", api_max,
+ api_ver);
+ il->ucode_ver = 0;
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (api_ver != api_max)
+ IL_ERR("Firmware has old API version. Expected %u, "
+ "got %u. New firmware can be obtained "
+ "from http://www.intellinuxwireless.org.\n", api_max,
+ api_ver);
+
+ IL_INFO("loaded firmware version %u.%u.%u.%u\n",
+ IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver),
+ IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver));
+
+ snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version),
+ "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver),
+ IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver),
+ IL_UCODE_SERIAL(il->ucode_ver));
+
+ D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver);
+ D_INFO("f/w package hdr runtime inst size = %u\n", inst_size);
+ D_INFO("f/w package hdr runtime data size = %u\n", data_size);
+ D_INFO("f/w package hdr init inst size = %u\n", init_size);
+ D_INFO("f/w package hdr init data size = %u\n", init_data_size);
+ D_INFO("f/w package hdr boot inst size = %u\n", boot_size);
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size !=
+ il3945_ucode_get_header_size(api_ver) + inst_size + data_size +
+ init_size + init_data_size + boot_size) {
+
+ D_INFO("uCode file size %zd does not match expected size\n",
+ ucode_raw->size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (inst_size > IL39_MAX_INST_SIZE) {
+ D_INFO("uCode instr len %d too large to fit in\n", inst_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ if (data_size > IL39_MAX_DATA_SIZE) {
+ D_INFO("uCode data len %d too large to fit in\n", data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_size > IL39_MAX_INST_SIZE) {
+ D_INFO("uCode init instr len %d too large to fit in\n",
+ init_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (init_data_size > IL39_MAX_DATA_SIZE) {
+ D_INFO("uCode init data len %d too large to fit in\n",
+ init_data_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+ if (boot_size > IL39_MAX_BSM_SIZE) {
+ D_INFO("uCode boot instr len %d too large to fit in\n",
+ boot_size);
+ ret = -EINVAL;
+ goto err_release;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ il->ucode_code.len = inst_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_code);
+
+ il->ucode_data.len = data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_data);
+
+ il->ucode_data_backup.len = data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup);
+
+ if (!il->ucode_code.v_addr || !il->ucode_data.v_addr ||
+ !il->ucode_data_backup.v_addr)
+ goto err_pci_alloc;
+
+ /* Initialization instructions and data */
+ if (init_size && init_data_size) {
+ il->ucode_init.len = init_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_init);
+
+ il->ucode_init_data.len = init_data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data);
+
+ if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Bootstrap (instructions only, no data) */
+ if (boot_size) {
+ il->ucode_boot.len = boot_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_boot);
+
+ if (!il->ucode_boot.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Copy images into buffers for card's bus-master reads ... */
+
+ /* Runtime instructions (first block of data in file) */
+ len = inst_size;
+ D_INFO("Copying (but not loading) uCode instr len %zd\n", len);
+ memcpy(il->ucode_code.v_addr, src, len);
+ src += len;
+
+ D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+ il->ucode_code.v_addr, (u32) il->ucode_code.p_addr);
+
+ /* Runtime data (2nd block)
+ * NOTE: Copy into backup buffer will be done in il3945_up() */
+ len = data_size;
+ D_INFO("Copying (but not loading) uCode data len %zd\n", len);
+ memcpy(il->ucode_data.v_addr, src, len);
+ memcpy(il->ucode_data_backup.v_addr, src, len);
+ src += len;
+
+ /* Initialization instructions (3rd block) */
+ if (init_size) {
+ len = init_size;
+ D_INFO("Copying (but not loading) init instr len %zd\n", len);
+ memcpy(il->ucode_init.v_addr, src, len);
+ src += len;
+ }
+
+ /* Initialization data (4th block) */
+ if (init_data_size) {
+ len = init_data_size;
+ D_INFO("Copying (but not loading) init data len %zd\n", len);
+ memcpy(il->ucode_init_data.v_addr, src, len);
+ src += len;
+ }
+
+ /* Bootstrap instructions (5th block) */
+ len = boot_size;
+ D_INFO("Copying (but not loading) boot instr len %zd\n", len);
+ memcpy(il->ucode_boot.v_addr, src, len);
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ return 0;
+
+err_pci_alloc:
+ IL_ERR("failed to allocate pci memory\n");
+ ret = -ENOMEM;
+ il3945_dealloc_ucode_pci(il);
+
+err_release:
+ release_firmware(ucode_raw);
+
+error:
+ return ret;
+}
+
+/**
+ * il3945_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int
+il3945_set_ucode_ptrs(struct il_priv *il)
+{
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+
+ /* bits 31:0 for 3945 */
+ pinst = il->ucode_code.p_addr;
+ pdata = il->ucode_data_backup.p_addr;
+
+ /* Tell bootstrap uCode where to find image to load */
+ il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
+ il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
+ il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len);
+
+ /* Inst byte count must be last to set up, bit 31 signals uCode
+ * that all new ptr/size info is in place */
+ il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG,
+ il->ucode_code.len | BSM_DRAM_INST_LOAD);
+
+ D_INFO("Runtime uCode pointers are set.\n");
+
+ return 0;
+}
+
+/**
+ * il3945_init_alive_start - Called after N_ALIVE notification received
+ *
+ * Called after N_ALIVE notification received from "initialize" uCode.
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+ */
+static void
+il3945_init_alive_start(struct il_priv *il)
+{
+ /* Check alive response for "valid" sign from uCode */
+ if (il->card_alive_init.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ D_INFO("Initialize Alive failed.\n");
+ goto restart;
+ }
+
+ /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "initialize" alive if code weren't properly loaded. */
+ if (il3945_verify_ucode(il)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ D_INFO("Bad \"initialize\" uCode load.\n");
+ goto restart;
+ }
+
+ /* Send pointers to protocol/runtime uCode image ... init code will
+ * load and launch runtime uCode, which will send us another "Alive"
+ * notification. */
+ D_INFO("Initialization Alive received.\n");
+ if (il3945_set_ucode_ptrs(il)) {
+ /* Runtime instruction load won't happen;
+ * take it all the way back down so we can try again */
+ D_INFO("Couldn't set up uCode pointers.\n");
+ goto restart;
+ }
+ return;
+
+restart:
+ queue_work(il->workqueue, &il->restart);
+}
+
+/**
+ * il3945_alive_start - called after N_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by il3945_init_alive_start()).
+ */
+static void
+il3945_alive_start(struct il_priv *il)
+{
+ int thermal_spin = 0;
+ u32 rfkill;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ D_INFO("Runtime Alive received.\n");
+
+ if (il->card_alive.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ D_INFO("Alive failed.\n");
+ goto restart;
+ }
+
+ /* Initialize uCode has loaded Runtime uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "runtime" alive if code weren't properly loaded. */
+ if (il3945_verify_ucode(il)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ D_INFO("Bad runtime uCode load.\n");
+ goto restart;
+ }
+
+ rfkill = il_rd_prph(il, APMG_RFKILL_REG);
+ D_INFO("RFKILL status: 0x%x\n", rfkill);
+
+ if (rfkill & 0x1) {
+ clear_bit(S_RF_KILL_HW, &il->status);
+ /* if RFKILL is not on, then wait for thermal
+ * sensor in adapter to kick in */
+ while (il3945_hw_get_temperature(il) == 0) {
+ thermal_spin++;
+ udelay(10);
+ }
+
+ if (thermal_spin)
+ D_INFO("Thermal calibration took %dus\n",
+ thermal_spin * 10);
+ } else
+ set_bit(S_RF_KILL_HW, &il->status);
+
+ /* After the ALIVE response, we can send commands to 3945 uCode */
+ set_bit(S_ALIVE, &il->status);
+
+ /* Enable watchdog to monitor the driver tx queues */
+ il_setup_watchdog(il);
+
+ if (il_is_rfkill(il))
+ return;
+
+ ieee80211_wake_queues(il->hw);
+
+ il->active_rate = RATES_MASK_3945;
+
+ il_power_update_mode(il, true);
+
+ if (il_is_associated(il)) {
+ struct il3945_rxon_cmd *active_rxon =
+ (struct il3945_rxon_cmd *)(&ctx->active);
+
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ /* Initialize our rx_config data */
+ il_connection_init_rx_config(il, ctx);
+ }
+
+ /* Configure Bluetooth device coexistence support */
+ il_send_bt_config(il);
+
+ set_bit(S_READY, &il->status);
+
+ /* Configure the adapter for unassociated operation */
+ il3945_commit_rxon(il, ctx);
+
+ il3945_reg_txpower_periodic(il);
+
+ D_INFO("ALIVE processing complete.\n");
+ wake_up(&il->wait_command_queue);
+
+ return;
+
+restart:
+ queue_work(il->workqueue, &il->restart);
+}
+
+static void il3945_cancel_deferred_work(struct il_priv *il);
+
+static void
+__il3945_down(struct il_priv *il)
+{
+ unsigned long flags;
+ int exit_pending;
+
+ D_INFO(DRV_NAME " is going down\n");
+
+ il_scan_cancel_timeout(il, 200);
+
+ exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status);
+
+ /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set
+ * to prevent rearm timer */
+ del_timer_sync(&il->watchdog);
+
+ /* Station information will now be cleared in device */
+ il_clear_ucode_stations(il, NULL);
+ il_dealloc_bcast_stations(il);
+ il_clear_driver_stations(il);
+
+ /* Unblock any waiting calls */
+ wake_up_all(&il->wait_command_queue);
+
+ /* Wipe out the EXIT_PENDING status bit if we are not actually
+ * exiting the module */
+ if (!exit_pending)
+ clear_bit(S_EXIT_PENDING, &il->status);
+
+ /* stop and reset the on-board processor */
+ _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+ il3945_synchronize_irq(il);
+
+ if (il->mac80211_registered)
+ ieee80211_stop_queues(il->hw);
+
+ /* If we have not previously called il3945_init() then
+ * clear all bits but the RF Kill bits and return */
+ if (!il_is_init(il)) {
+ il->status =
+ test_bit(S_RF_KILL_HW,
+ &il->
+ status) << S_RF_KILL_HW |
+ test_bit(S_GEO_CONFIGURED,
+ &il->
+ status) << S_GEO_CONFIGURED |
+ test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
+ goto exit;
+ }
+
+ /* ...otherwise clear out all the status bits but the RF Kill
+ * bit and continue taking the NIC down. */
+ il->status &=
+ test_bit(S_RF_KILL_HW,
+ &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED,
+ &il->
+ status) <<
+ S_GEO_CONFIGURED | test_bit(S_FW_ERROR,
+ &il->
+ status) << S_FW_ERROR |
+ test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
+
+ il3945_hw_txq_ctx_stop(il);
+ il3945_hw_rxq_stop(il);
+
+ /* Power-down device's busmaster DMA clocks */
+ il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
+ udelay(5);
+
+ /* Stop the device, and put it in low power state */
+ il_apm_stop(il);
+
+exit:
+ memset(&il->card_alive, 0, sizeof(struct il_alive_resp));
+
+ if (il->beacon_skb)
+ dev_kfree_skb(il->beacon_skb);
+ il->beacon_skb = NULL;
+
+ /* clear out any free frames */
+ il3945_clear_free_frames(il);
+}
+
+static void
+il3945_down(struct il_priv *il)
+{
+ mutex_lock(&il->mutex);
+ __il3945_down(il);
+ mutex_unlock(&il->mutex);
+
+ il3945_cancel_deferred_work(il);
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int
+il3945_alloc_bcast_station(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ unsigned long flags;
+ u8 sta_id;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ sta_id = il_prep_station(il, ctx, il_bcast_addr, false, NULL);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Unable to prepare broadcast station\n");
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return -EINVAL;
+ }
+
+ il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
+ il->stations[sta_id].used |= IL_STA_BCAST;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return 0;
+}
+
+static int
+__il3945_up(struct il_priv *il)
+{
+ int rc, i;
+
+ rc = il3945_alloc_bcast_station(il);
+ if (rc)
+ return rc;
+
+ if (test_bit(S_EXIT_PENDING, &il->status)) {
+ IL_WARN("Exit pending; will not bring the NIC up\n");
+ return -EIO;
+ }
+
+ if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) {
+ IL_ERR("ucode not available for device bring up\n");
+ return -EIO;
+ }
+
+ /* If platform's RF_KILL switch is NOT set to KILL */
+ if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+ clear_bit(S_RF_KILL_HW, &il->status);
+ else {
+ set_bit(S_RF_KILL_HW, &il->status);
+ IL_WARN("Radio disabled by HW RF Kill switch\n");
+ return -ENODEV;
+ }
+
+ _il_wr(il, CSR_INT, 0xFFFFFFFF);
+
+ rc = il3945_hw_nic_init(il);
+ if (rc) {
+ IL_ERR("Unable to int nic\n");
+ return rc;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ _il_wr(il, CSR_INT, 0xFFFFFFFF);
+ il_enable_interrupts(il);
+
+ /* really make sure rfkill handshake bits are cleared */
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* Copy original ucode data image from disk into backup cache.
+ * This will be used to initialize the on-board processor's
+ * data SRAM for a clean start when the runtime program first loads. */
+ memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr,
+ il->ucode_data.len);
+
+ /* We return success when we resume from suspend and rf_kill is on. */
+ if (test_bit(S_RF_KILL_HW, &il->status))
+ return 0;
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+ /* load bootstrap state machine,
+ * load bootstrap program into processor's memory,
+ * prepare to load the "initialize" uCode */
+ rc = il->cfg->ops->lib->load_ucode(il);
+
+ if (rc) {
+ IL_ERR("Unable to set up bootstrap uCode: %d\n", rc);
+ continue;
+ }
+
+ /* start card; "initialize" will load runtime ucode */
+ il3945_nic_start(il);
+
+ D_INFO(DRV_NAME " is coming up\n");
+
+ return 0;
+ }
+
+ set_bit(S_EXIT_PENDING, &il->status);
+ __il3945_down(il);
+ clear_bit(S_EXIT_PENDING, &il->status);
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IL_ERR("Unable to initialize device after %d attempts.\n", i);
+ return -EIO;
+}
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void
+il3945_bg_init_alive_start(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, init_alive_start.work);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ goto out;
+
+ il3945_init_alive_start(il);
+out:
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il3945_bg_alive_start(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, alive_start.work);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ goto out;
+
+ il3945_alive_start(il);
+out:
+ mutex_unlock(&il->mutex);
+}
+
+/*
+ * 3945 cannot interrupt driver when hardware rf kill switch toggles;
+ * driver must poll CSR_GP_CNTRL_REG register for change. This register
+ * *is* readable even when device has been SW_RESET into low power mode
+ * (e.g. during RF KILL).
+ */
+static void
+il3945_rfkill_poll(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, _3945.rfkill_poll.work);
+ bool old_rfkill = test_bit(S_RF_KILL_HW, &il->status);
+ bool new_rfkill =
+ !(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW);
+
+ if (new_rfkill != old_rfkill) {
+ if (new_rfkill)
+ set_bit(S_RF_KILL_HW, &il->status);
+ else
+ clear_bit(S_RF_KILL_HW, &il->status);
+
+ wiphy_rfkill_set_hw_state(il->hw->wiphy, new_rfkill);
+
+ D_RF_KILL("RF_KILL bit toggled to %s.\n",
+ new_rfkill ? "disable radio" : "enable radio");
+ }
+
+ /* Keep this running, even if radio now enabled. This will be
+ * cancelled in mac_start() if system decides to start again */
+ queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll,
+ round_jiffies_relative(2 * HZ));
+
+}
+
+int
+il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif)
+{
+ struct il_host_cmd cmd = {
+ .id = C_SCAN,
+ .len = sizeof(struct il3945_scan_cmd),
+ .flags = CMD_SIZE_HUGE,
+ };
+ struct il3945_scan_cmd *scan;
+ u8 n_probes = 0;
+ enum ieee80211_band band;
+ bool is_active = false;
+ int ret;
+ u16 len;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (!il->scan_cmd) {
+ il->scan_cmd =
+ kmalloc(sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE,
+ GFP_KERNEL);
+ if (!il->scan_cmd) {
+ D_SCAN("Fail to allocate scan memory\n");
+ return -ENOMEM;
+ }
+ }
+ scan = il->scan_cmd;
+ memset(scan, 0, sizeof(struct il3945_scan_cmd) + IL_MAX_SCAN_SIZE);
+
+ scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH;
+ scan->quiet_time = IL_ACTIVE_QUIET_TIME;
+
+ if (il_is_associated(il)) {
+ u16 interval;
+ u32 extra;
+ u32 suspend_time = 100;
+ u32 scan_suspend_time = 100;
+
+ D_INFO("Scanning while associated...\n");
+
+ interval = vif->bss_conf.beacon_int;
+
+ scan->suspend_time = 0;
+ scan->max_out_time = cpu_to_le32(200 * 1024);
+ if (!interval)
+ interval = suspend_time;
+ /*
+ * suspend time format:
+ * 0-19: beacon interval in usec (time before exec.)
+ * 20-23: 0
+ * 24-31: number of beacons (suspend between channels)
+ */
+
+ extra = (suspend_time / interval) << 24;
+ scan_suspend_time =
+ 0xFF0FFFFF & (extra | ((suspend_time % interval) * 1024));
+
+ scan->suspend_time = cpu_to_le32(scan_suspend_time);
+ D_SCAN("suspend_time 0x%X beacon interval %d\n",
+ scan_suspend_time, interval);
+ }
+
+ if (il->scan_request->n_ssids) {
+ int i, p = 0;
+ D_SCAN("Kicking off active scan\n");
+ for (i = 0; i < il->scan_request->n_ssids; i++) {
+ /* always does wildcard anyway */
+ if (!il->scan_request->ssids[i].ssid_len)
+ continue;
+ scan->direct_scan[p].id = WLAN_EID_SSID;
+ scan->direct_scan[p].len =
+ il->scan_request->ssids[i].ssid_len;
+ memcpy(scan->direct_scan[p].ssid,
+ il->scan_request->ssids[i].ssid,
+ il->scan_request->ssids[i].ssid_len);
+ n_probes++;
+ p++;
+ }
+ is_active = true;
+ } else
+ D_SCAN("Kicking off passive scan.\n");
+
+ /* We don't build a direct scan probe request; the uCode will do
+ * that based on the direct_mask added to each channel entry */
+ scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
+ scan->tx_cmd.sta_id = il->ctx.bcast_sta_id;
+ scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ /* flags + rate selection */
+
+ switch (il->scan_band) {
+ case IEEE80211_BAND_2GHZ:
+ scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
+ scan->tx_cmd.rate = RATE_1M_PLCP;
+ band = IEEE80211_BAND_2GHZ;
+ break;
+ case IEEE80211_BAND_5GHZ:
+ scan->tx_cmd.rate = RATE_6M_PLCP;
+ band = IEEE80211_BAND_5GHZ;
+ break;
+ default:
+ IL_WARN("Invalid scan band\n");
+ return -EIO;
+ }
+
+ /*
+ * If active scaning is requested but a certain channel
+ * is marked passive, we can do active scanning if we
+ * detect transmissions.
+ */
+ scan->good_CRC_th =
+ is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_DISABLED;
+
+ len =
+ il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data,
+ vif->addr, il->scan_request->ie,
+ il->scan_request->ie_len,
+ IL_MAX_SCAN_SIZE - sizeof(*scan));
+ scan->tx_cmd.len = cpu_to_le16(len);
+
+ /* select Rx antennas */
+ scan->flags |= il3945_get_antenna_flags(il);
+
+ scan->channel_count =
+ il3945_get_channels_for_scan(il, band, is_active, n_probes,
+ (void *)&scan->data[len], vif);
+ if (scan->channel_count == 0) {
+ D_SCAN("channel count %d\n", scan->channel_count);
+ return -EIO;
+ }
+
+ cmd.len +=
+ le16_to_cpu(scan->tx_cmd.len) +
+ scan->channel_count * sizeof(struct il3945_scan_channel);
+ cmd.data = scan;
+ scan->len = cpu_to_le16(cmd.len);
+
+ set_bit(S_SCAN_HW, &il->status);
+ ret = il_send_cmd_sync(il, &cmd);
+ if (ret)
+ clear_bit(S_SCAN_HW, &il->status);
+ return ret;
+}
+
+void
+il3945_post_scan(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+
+ /*
+ * Since setting the RXON may have been deferred while
+ * performing the scan, fire one off if needed
+ */
+ if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
+ il3945_commit_rxon(il, ctx);
+}
+
+static void
+il3945_bg_restart(struct work_struct *data)
+{
+ struct il_priv *il = container_of(data, struct il_priv, restart);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ if (test_and_clear_bit(S_FW_ERROR, &il->status)) {
+ mutex_lock(&il->mutex);
+ il->ctx.vif = NULL;
+ il->is_open = 0;
+ mutex_unlock(&il->mutex);
+ il3945_down(il);
+ ieee80211_restart_hw(il->hw);
+ } else {
+ il3945_down(il);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status)) {
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ __il3945_up(il);
+ mutex_unlock(&il->mutex);
+ }
+}
+
+static void
+il3945_bg_rx_replenish(struct work_struct *data)
+{
+ struct il_priv *il = container_of(data, struct il_priv, rx_replenish);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ goto out;
+
+ il3945_rx_replenish(il);
+out:
+ mutex_unlock(&il->mutex);
+}
+
+void
+il3945_post_associate(struct il_priv *il)
+{
+ int rc = 0;
+ struct ieee80211_conf *conf = NULL;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (!ctx->vif || !il->is_open)
+ return;
+
+ D_ASSOC("Associated as %d to: %pM\n", ctx->vif->bss_conf.aid,
+ ctx->active.bssid_addr);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ il_scan_cancel_timeout(il, 200);
+
+ conf = &il->hw->conf;
+
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ il3945_commit_rxon(il, ctx);
+
+ rc = il_send_rxon_timing(il, ctx);
+ if (rc)
+ IL_WARN("C_RXON_TIMING failed - " "Attempting to continue.\n");
+
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+ ctx->staging.assoc_id = cpu_to_le16(ctx->vif->bss_conf.aid);
+
+ D_ASSOC("assoc id %d beacon interval %d\n", ctx->vif->bss_conf.aid,
+ ctx->vif->bss_conf.beacon_int);
+
+ if (ctx->vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (ctx->vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+
+ il3945_commit_rxon(il, ctx);
+
+ switch (ctx->vif->type) {
+ case NL80211_IFTYPE_STATION:
+ il3945_rate_scale_init(il->hw, IL_AP_ID);
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ il3945_send_beacon_cmd(il);
+ break;
+ default:
+ IL_ERR("%s Should not be called in %d mode\n", __func__,
+ ctx->vif->type);
+ break;
+ }
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+#define UCODE_READY_TIMEOUT (2 * HZ)
+
+static int
+il3945_mac_start(struct ieee80211_hw *hw)
+{
+ struct il_priv *il = hw->priv;
+ int ret;
+
+ D_MAC80211("enter\n");
+
+ /* we should be verifying the device is ready to be opened */
+ mutex_lock(&il->mutex);
+
+ /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
+ * ucode filename and max sizes are card-specific. */
+
+ if (!il->ucode_code.len) {
+ ret = il3945_read_ucode(il);
+ if (ret) {
+ IL_ERR("Could not read microcode: %d\n", ret);
+ mutex_unlock(&il->mutex);
+ goto out_release_irq;
+ }
+ }
+
+ ret = __il3945_up(il);
+
+ mutex_unlock(&il->mutex);
+
+ if (ret)
+ goto out_release_irq;
+
+ D_INFO("Start UP work.\n");
+
+ /* Wait for START_ALIVE from ucode. Otherwise callbacks from
+ * mac80211 will not be run successfully. */
+ ret = wait_event_timeout(il->wait_command_queue,
+ test_bit(S_READY, &il->status),
+ UCODE_READY_TIMEOUT);
+ if (!ret) {
+ if (!test_bit(S_READY, &il->status)) {
+ IL_ERR("Wait for START_ALIVE timeout after %dms.\n",
+ jiffies_to_msecs(UCODE_READY_TIMEOUT));
+ ret = -ETIMEDOUT;
+ goto out_release_irq;
+ }
+ }
+
+ /* ucode is running and will send rfkill notifications,
+ * no need to poll the killswitch state anymore */
+ cancel_delayed_work(&il->_3945.rfkill_poll);
+
+ il->is_open = 1;
+ D_MAC80211("leave\n");
+ return 0;
+
+out_release_irq:
+ il->is_open = 0;
+ D_MAC80211("leave - failed\n");
+ return ret;
+}
+
+static void
+il3945_mac_stop(struct ieee80211_hw *hw)
+{
+ struct il_priv *il = hw->priv;
+
+ D_MAC80211("enter\n");
+
+ if (!il->is_open) {
+ D_MAC80211("leave - skip\n");
+ return;
+ }
+
+ il->is_open = 0;
+
+ il3945_down(il);
+
+ flush_workqueue(il->workqueue);
+
+ /* start polling the killswitch state again */
+ queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll,
+ round_jiffies_relative(2 * HZ));
+
+ D_MAC80211("leave\n");
+}
+
+static void
+il3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct il_priv *il = hw->priv;
+
+ D_MAC80211("enter\n");
+
+ D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+ ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
+
+ if (il3945_tx_skb(il, skb))
+ dev_kfree_skb_any(skb);
+
+ D_MAC80211("leave\n");
+}
+
+void
+il3945_config_ap(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ struct ieee80211_vif *vif = ctx->vif;
+ int rc = 0;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ /* The following should be done only at AP bring up */
+ if (!(il_is_associated(il))) {
+
+ /* RXON - unassoc (to set timing command) */
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ il3945_commit_rxon(il, ctx);
+
+ /* RXON Timing */
+ rc = il_send_rxon_timing(il, ctx);
+ if (rc)
+ IL_WARN("C_RXON_TIMING failed - "
+ "Attempting to continue.\n");
+
+ ctx->staging.assoc_id = 0;
+
+ if (vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* restore RXON assoc */
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ il3945_commit_rxon(il, ctx);
+ }
+ il3945_send_beacon_cmd(il);
+}
+
+static int
+il3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ struct il_priv *il = hw->priv;
+ int ret = 0;
+ u8 sta_id = IL_INVALID_STATION;
+ u8 static_key;
+
+ D_MAC80211("enter\n");
+
+ if (il3945_mod_params.sw_crypto) {
+ D_MAC80211("leave - hwcrypto disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ /*
+ * To support IBSS RSN, don't program group keys in IBSS, the
+ * hardware will then not attempt to decrypt the frames.
+ */
+ if (vif->type == NL80211_IFTYPE_ADHOC &&
+ !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
+ return -EOPNOTSUPP;
+
+ static_key = !il_is_associated(il);
+
+ if (!static_key) {
+ sta_id = il_sta_id_or_broadcast(il, &il->ctx, sta);
+ if (sta_id == IL_INVALID_STATION)
+ return -EINVAL;
+ }
+
+ mutex_lock(&il->mutex);
+ il_scan_cancel_timeout(il, 100);
+
+ switch (cmd) {
+ case SET_KEY:
+ if (static_key)
+ ret = il3945_set_static_key(il, key);
+ else
+ ret = il3945_set_dynamic_key(il, key, sta_id);
+ D_MAC80211("enable hwcrypto key\n");
+ break;
+ case DISABLE_KEY:
+ if (static_key)
+ ret = il3945_remove_static_key(il);
+ else
+ ret = il3945_clear_sta_key_info(il, sta_id);
+ D_MAC80211("disable hwcrypto key\n");
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&il->mutex);
+ D_MAC80211("leave\n");
+
+ return ret;
+}
+
+static int
+il3945_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct il_priv *il = hw->priv;
+ struct il3945_sta_priv *sta_priv = (void *)sta->drv_priv;
+ int ret;
+ bool is_ap = vif->type == NL80211_IFTYPE_STATION;
+ u8 sta_id;
+
+ D_INFO("received request to add station %pM\n", sta->addr);
+ mutex_lock(&il->mutex);
+ D_INFO("proceeding to add station %pM\n", sta->addr);
+ sta_priv->common.sta_id = IL_INVALID_STATION;
+
+ ret =
+ il_add_station_common(il, &il->ctx, sta->addr, is_ap, sta, &sta_id);
+ if (ret) {
+ IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret);
+ /* Should we return success if return code is EEXIST ? */
+ mutex_unlock(&il->mutex);
+ return ret;
+ }
+
+ sta_priv->common.sta_id = sta_id;
+
+ /* Initialize rate scaling */
+ D_INFO("Initializing rate scaling for station %pM\n", sta->addr);
+ il3945_rs_rate_init(il, sta, sta_id);
+ mutex_unlock(&il->mutex);
+
+ return 0;
+}
+
+static void
+il3945_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast)
+{
+ struct il_priv *il = hw->priv;
+ __le32 filter_or = 0, filter_nand = 0;
+ struct il_rxon_context *ctx = &il->ctx;
+
+#define CHK(test, flag) do { \
+ if (*total_flags & (test)) \
+ filter_or |= (flag); \
+ else \
+ filter_nand |= (flag); \
+ } while (0)
+
+ D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags,
+ *total_flags);
+
+ CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
+ CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
+ CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
+
+#undef CHK
+
+ mutex_lock(&il->mutex);
+
+ ctx->staging.filter_flags &= ~filter_nand;
+ ctx->staging.filter_flags |= filter_or;
+
+ /*
+ * Not committing directly because hardware can perform a scan,
+ * but even if hw is ready, committing here breaks for some reason,
+ * we'll eventually commit the filter flags change anyway.
+ */
+
+ mutex_unlock(&il->mutex);
+
+ /*
+ * Receiving all multicast frames is always enabled by the
+ * default flags setup in il_connection_init_rx_config()
+ * since we currently do not support programming multicast
+ * filters into the device.
+ */
+ *total_flags &=
+ FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
+ FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ *
+ * The debug_level being managed using sysfs below is a per device debug
+ * level that is used instead of the global debug level if it (the per
+ * device debug level) is set.
+ */
+static ssize_t
+il3945_show_debug_level(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ return sprintf(buf, "0x%08X\n", il_get_debug_level(il));
+}
+
+static ssize_t
+il3945_store_debug_level(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ unsigned long val;
+ int ret;
+
+ ret = strict_strtoul(buf, 0, &val);
+ if (ret)
+ IL_INFO("%s is not in hex or decimal form.\n", buf);
+ else {
+ il->debug_level = val;
+ if (il_alloc_traffic_mem(il))
+ IL_ERR("Not enough memory to generate traffic log\n");
+ }
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il3945_show_debug_level,
+ il3945_store_debug_level);
+
+#endif /* CONFIG_IWLEGACY_DEBUG */
+
+static ssize_t
+il3945_show_temperature(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", il3945_hw_get_temperature(il));
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, il3945_show_temperature, NULL);
+
+static ssize_t
+il3945_show_tx_power(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ return sprintf(buf, "%d\n", il->tx_power_user_lmt);
+}
+
+static ssize_t
+il3945_store_tx_power(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ char *p = (char *)buf;
+ u32 val;
+
+ val = simple_strtoul(p, &p, 10);
+ if (p == buf)
+ IL_INFO(": %s is not in decimal form.\n", buf);
+ else
+ il3945_hw_reg_set_txpower(il, val);
+
+ return count;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il3945_show_tx_power,
+ il3945_store_tx_power);
+
+static ssize_t
+il3945_show_flags(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ struct il_rxon_context *ctx = &il->ctx;
+
+ return sprintf(buf, "0x%04X\n", ctx->active.flags);
+}
+
+static ssize_t
+il3945_store_flags(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ u32 flags = simple_strtoul(buf, NULL, 0);
+ struct il_rxon_context *ctx = &il->ctx;
+
+ mutex_lock(&il->mutex);
+ if (le32_to_cpu(ctx->staging.flags) != flags) {
+ /* Cancel any currently running scans... */
+ if (il_scan_cancel_timeout(il, 100))
+ IL_WARN("Could not cancel scan.\n");
+ else {
+ D_INFO("Committing rxon.flags = 0x%04X\n", flags);
+ ctx->staging.flags = cpu_to_le32(flags);
+ il3945_commit_rxon(il, ctx);
+ }
+ }
+ mutex_unlock(&il->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, il3945_show_flags,
+ il3945_store_flags);
+
+static ssize_t
+il3945_show_filter_flags(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ struct il_rxon_context *ctx = &il->ctx;
+
+ return sprintf(buf, "0x%04X\n", le32_to_cpu(ctx->active.filter_flags));
+}
+
+static ssize_t
+il3945_store_filter_flags(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ struct il_rxon_context *ctx = &il->ctx;
+ u32 filter_flags = simple_strtoul(buf, NULL, 0);
+
+ mutex_lock(&il->mutex);
+ if (le32_to_cpu(ctx->staging.filter_flags) != filter_flags) {
+ /* Cancel any currently running scans... */
+ if (il_scan_cancel_timeout(il, 100))
+ IL_WARN("Could not cancel scan.\n");
+ else {
+ D_INFO("Committing rxon.filter_flags = " "0x%04X\n",
+ filter_flags);
+ ctx->staging.filter_flags = cpu_to_le32(filter_flags);
+ il3945_commit_rxon(il, ctx);
+ }
+ }
+ mutex_unlock(&il->mutex);
+
+ return count;
+}
+
+static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, il3945_show_filter_flags,
+ il3945_store_filter_flags);
+
+static ssize_t
+il3945_show_measurement(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ struct il_spectrum_notification measure_report;
+ u32 size = sizeof(measure_report), len = 0, ofs = 0;
+ u8 *data = (u8 *) &measure_report;
+ unsigned long flags;
+
+ spin_lock_irqsave(&il->lock, flags);
+ if (!(il->measurement_status & MEASUREMENT_READY)) {
+ spin_unlock_irqrestore(&il->lock, flags);
+ return 0;
+ }
+ memcpy(&measure_report, &il->measure_report, size);
+ il->measurement_status = 0;
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ while (size && PAGE_SIZE - len) {
+ hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
+ PAGE_SIZE - len, 1);
+ len = strlen(buf);
+ if (PAGE_SIZE - len)
+ buf[len++] = '\n';
+
+ ofs += 16;
+ size -= min(size, 16U);
+ }
+
+ return len;
+}
+
+static ssize_t
+il3945_store_measurement(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ struct il_rxon_context *ctx = &il->ctx;
+ struct ieee80211_measurement_params params = {
+ .channel = le16_to_cpu(ctx->active.channel),
+ .start_time = cpu_to_le64(il->_3945.last_tsf),
+ .duration = cpu_to_le16(1),
+ };
+ u8 type = IL_MEASURE_BASIC;
+ u8 buffer[32];
+ u8 channel;
+
+ if (count) {
+ char *p = buffer;
+ strncpy(buffer, buf, min(sizeof(buffer), count));
+ channel = simple_strtoul(p, NULL, 0);
+ if (channel)
+ params.channel = channel;
+
+ p = buffer;
+ while (*p && *p != ' ')
+ p++;
+ if (*p)
+ type = simple_strtoul(p + 1, NULL, 0);
+ }
+
+ D_INFO("Invoking measurement of type %d on " "channel %d (for '%s')\n",
+ type, params.channel, buf);
+ il3945_get_measurement(il, ¶ms, type);
+
+ return count;
+}
+
+static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR, il3945_show_measurement,
+ il3945_store_measurement);
+
+static ssize_t
+il3945_store_retry_rate(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+
+ il->retry_rate = simple_strtoul(buf, NULL, 0);
+ if (il->retry_rate <= 0)
+ il->retry_rate = 1;
+
+ return count;
+}
+
+static ssize_t
+il3945_show_retry_rate(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ return sprintf(buf, "%d", il->retry_rate);
+}
+
+static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, il3945_show_retry_rate,
+ il3945_store_retry_rate);
+
+static ssize_t
+il3945_show_channels(struct device *d, struct device_attribute *attr, char *buf)
+{
+ /* all this shit doesn't belong into sysfs anyway */
+ return 0;
+}
+
+static DEVICE_ATTR(channels, S_IRUSR, il3945_show_channels, NULL);
+
+static ssize_t
+il3945_show_antenna(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", il3945_mod_params.antenna);
+}
+
+static ssize_t
+il3945_store_antenna(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il __maybe_unused = dev_get_drvdata(d);
+ int ant;
+
+ if (count == 0)
+ return 0;
+
+ if (sscanf(buf, "%1i", &ant) != 1) {
+ D_INFO("not in hex or decimal form.\n");
+ return count;
+ }
+
+ if (ant >= 0 && ant <= 2) {
+ D_INFO("Setting antenna select to %d.\n", ant);
+ il3945_mod_params.antenna = (enum il3945_antenna)ant;
+ } else
+ D_INFO("Bad antenna select value %d.\n", ant);
+
+ return count;
+}
+
+static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, il3945_show_antenna,
+ il3945_store_antenna);
+
+static ssize_t
+il3945_show_status(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ if (!il_is_alive(il))
+ return -EAGAIN;
+ return sprintf(buf, "0x%08x\n", (int)il->status);
+}
+
+static DEVICE_ATTR(status, S_IRUGO, il3945_show_status, NULL);
+
+static ssize_t
+il3945_dump_error_log(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ char *p = (char *)buf;
+
+ if (p[0] == '1')
+ il3945_dump_nic_error_log(il);
+
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, il3945_dump_error_log);
+
+/*****************************************************************************
+ *
+ * driver setup and tear down
+ *
+ *****************************************************************************/
+
+static void
+il3945_setup_deferred_work(struct il_priv *il)
+{
+ il->workqueue = create_singlethread_workqueue(DRV_NAME);
+
+ init_waitqueue_head(&il->wait_command_queue);
+
+ INIT_WORK(&il->restart, il3945_bg_restart);
+ INIT_WORK(&il->rx_replenish, il3945_bg_rx_replenish);
+ INIT_DELAYED_WORK(&il->init_alive_start, il3945_bg_init_alive_start);
+ INIT_DELAYED_WORK(&il->alive_start, il3945_bg_alive_start);
+ INIT_DELAYED_WORK(&il->_3945.rfkill_poll, il3945_rfkill_poll);
+
+ il_setup_scan_deferred_work(il);
+
+ il3945_hw_setup_deferred_work(il);
+
+ init_timer(&il->watchdog);
+ il->watchdog.data = (unsigned long)il;
+ il->watchdog.function = il_bg_watchdog;
+
+ tasklet_init(&il->irq_tasklet,
+ (void (*)(unsigned long))il3945_irq_tasklet,
+ (unsigned long)il);
+}
+
+static void
+il3945_cancel_deferred_work(struct il_priv *il)
+{
+ il3945_hw_cancel_deferred_work(il);
+
+ cancel_delayed_work_sync(&il->init_alive_start);
+ cancel_delayed_work(&il->alive_start);
+
+ il_cancel_scan_deferred_work(il);
+}
+
+static struct attribute *il3945_sysfs_entries[] = {
+ &dev_attr_antenna.attr,
+ &dev_attr_channels.attr,
+ &dev_attr_dump_errors.attr,
+ &dev_attr_flags.attr,
+ &dev_attr_filter_flags.attr,
+ &dev_attr_measurement.attr,
+ &dev_attr_retry_rate.attr,
+ &dev_attr_status.attr,
+ &dev_attr_temperature.attr,
+ &dev_attr_tx_power.attr,
+#ifdef CONFIG_IWLEGACY_DEBUG
+ &dev_attr_debug_level.attr,
+#endif
+ NULL
+};
+
+static struct attribute_group il3945_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = il3945_sysfs_entries,
+};
+
+struct ieee80211_ops il3945_hw_ops = {
+ .tx = il3945_mac_tx,
+ .start = il3945_mac_start,
+ .stop = il3945_mac_stop,
+ .add_interface = il_mac_add_interface,
+ .remove_interface = il_mac_remove_interface,
+ .change_interface = il_mac_change_interface,
+ .config = il_mac_config,
+ .configure_filter = il3945_configure_filter,
+ .set_key = il3945_mac_set_key,
+ .conf_tx = il_mac_conf_tx,
+ .reset_tsf = il_mac_reset_tsf,
+ .bss_info_changed = il_mac_bss_info_changed,
+ .hw_scan = il_mac_hw_scan,
+ .sta_add = il3945_mac_sta_add,
+ .sta_remove = il_mac_sta_remove,
+ .tx_last_beacon = il_mac_tx_last_beacon,
+};
+
+static int
+il3945_init_drv(struct il_priv *il)
+{
+ int ret;
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+
+ il->retry_rate = 1;
+ il->beacon_skb = NULL;
+
+ spin_lock_init(&il->sta_lock);
+ spin_lock_init(&il->hcmd_lock);
+
+ INIT_LIST_HEAD(&il->free_frames);
+
+ mutex_init(&il->mutex);
+
+ il->ieee_channels = NULL;
+ il->ieee_rates = NULL;
+ il->band = IEEE80211_BAND_2GHZ;
+
+ il->iw_mode = NL80211_IFTYPE_STATION;
+ il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF;
+
+ /* initialize force reset */
+ il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD;
+
+ if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
+ IL_WARN("Unsupported EEPROM version: 0x%04X\n",
+ eeprom->version);
+ ret = -EINVAL;
+ goto err;
+ }
+ ret = il_init_channel_map(il);
+ if (ret) {
+ IL_ERR("initializing regulatory failed: %d\n", ret);
+ goto err;
+ }
+
+ /* Set up txpower settings in driver for all channels */
+ if (il3945_txpower_set_from_eeprom(il)) {
+ ret = -EIO;
+ goto err_free_channel_map;
+ }
+
+ ret = il_init_geos(il);
+ if (ret) {
+ IL_ERR("initializing geos failed: %d\n", ret);
+ goto err_free_channel_map;
+ }
+ il3945_init_hw_rates(il, il->ieee_rates);
+
+ return 0;
+
+err_free_channel_map:
+ il_free_channel_map(il);
+err:
+ return ret;
+}
+
+#define IL3945_MAX_PROBE_REQUEST 200
+
+static int
+il3945_setup_mac(struct il_priv *il)
+{
+ int ret;
+ struct ieee80211_hw *hw = il->hw;
+
+ hw->rate_control_algorithm = "iwl-3945-rs";
+ hw->sta_data_size = sizeof(struct il3945_sta_priv);
+ hw->vif_data_size = sizeof(struct il_vif_priv);
+
+ /* Tell mac80211 our characteristics */
+ hw->flags = IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_SPECTRUM_MGMT;
+
+ hw->wiphy->interface_modes = il->ctx.interface_modes;
+
+ hw->wiphy->flags |=
+ WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS |
+ WIPHY_FLAG_IBSS_RSN;
+
+ hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
+ /* we create the 802.11 header and a zero-length SSID element */
+ hw->wiphy->max_scan_ie_len = IL3945_MAX_PROBE_REQUEST - 24 - 2;
+
+ /* Default value; 4 EDCA QOS priorities */
+ hw->queues = 4;
+
+ if (il->bands[IEEE80211_BAND_2GHZ].n_channels)
+ il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+ &il->bands[IEEE80211_BAND_2GHZ];
+
+ if (il->bands[IEEE80211_BAND_5GHZ].n_channels)
+ il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+ &il->bands[IEEE80211_BAND_5GHZ];
+
+ il_leds_init(il);
+
+ ret = ieee80211_register_hw(il->hw);
+ if (ret) {
+ IL_ERR("Failed to register hw (error %d)\n", ret);
+ return ret;
+ }
+ il->mac80211_registered = 1;
+
+ return 0;
+}
+
+static int
+il3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = 0;
+ struct il_priv *il;
+ struct ieee80211_hw *hw;
+ struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data);
+ struct il3945_eeprom *eeprom;
+ unsigned long flags;
+
+ /***********************
+ * 1. Allocating HW data
+ * ********************/
+
+ /* mac80211 allocates memory for this device instance, including
+ * space for this driver's ilate structure */
+ hw = il_alloc_all(cfg);
+ if (hw == NULL) {
+ pr_err("Can not allocate network device\n");
+ err = -ENOMEM;
+ goto out;
+ }
+ il = hw->priv;
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ il->cmd_queue = IL39_CMD_QUEUE_NUM;
+
+ il->ctx.ctxid = 0;
+
+ il->ctx.rxon_cmd = C_RXON;
+ il->ctx.rxon_timing_cmd = C_RXON_TIMING;
+ il->ctx.rxon_assoc_cmd = C_RXON_ASSOC;
+ il->ctx.qos_cmd = C_QOS_PARAM;
+ il->ctx.ap_sta_id = IL_AP_ID;
+ il->ctx.wep_key_cmd = C_WEPKEY;
+ il->ctx.interface_modes =
+ BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
+ il->ctx.ibss_devtype = RXON_DEV_TYPE_IBSS;
+ il->ctx.station_devtype = RXON_DEV_TYPE_ESS;
+ il->ctx.unused_devtype = RXON_DEV_TYPE_ESS;
+
+ /*
+ * Disabling hardware scan means that mac80211 will perform scans
+ * "the hard way", rather than using device's scan.
+ */
+ if (il3945_mod_params.disable_hw_scan) {
+ D_INFO("Disabling hw_scan\n");
+ il3945_hw_ops.hw_scan = NULL;
+ }
+
+ D_INFO("*** LOAD DRIVER ***\n");
+ il->cfg = cfg;
+ il->pci_dev = pdev;
+ il->inta_mask = CSR_INI_SET_MASK;
+
+ if (il_alloc_traffic_mem(il))
+ IL_ERR("Not enough memory to generate traffic log\n");
+
+ /***************************
+ * 2. Initializing PCI bus
+ * *************************/
+ pci_disable_link_state(pdev,
+ PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+ PCIE_LINK_STATE_CLKPM);
+
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_ieee80211_free_hw;
+ }
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (err) {
+ IL_WARN("No suitable DMA available.\n");
+ goto out_pci_disable_device;
+ }
+
+ pci_set_drvdata(pdev, il);
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ /***********************
+ * 3. Read REV Register
+ * ********************/
+ il->hw_base = pci_iomap(pdev, 0, 0);
+ if (!il->hw_base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ D_INFO("pci_resource_len = 0x%08llx\n",
+ (unsigned long long)pci_resource_len(pdev, 0));
+ D_INFO("pci_resource_base = %p\n", il->hw_base);
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_write_config_byte(pdev, 0x41, 0x00);
+
+ /* these spin locks will be used in apm_ops.init and EEPROM access
+ * we should init now
+ */
+ spin_lock_init(&il->reg_lock);
+ spin_lock_init(&il->lock);
+
+ /*
+ * stop and reset the on-board processor just in case it is in a
+ * strange state ... like being left stranded by a primary kernel
+ * and this is now the kdump kernel trying to start up
+ */
+ _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /***********************
+ * 4. Read EEPROM
+ * ********************/
+
+ /* Read the EEPROM */
+ err = il_eeprom_init(il);
+ if (err) {
+ IL_ERR("Unable to init EEPROM\n");
+ goto out_iounmap;
+ }
+ /* MAC Address location in EEPROM same for 3945/4965 */
+ eeprom = (struct il3945_eeprom *)il->eeprom;
+ D_INFO("MAC address: %pM\n", eeprom->mac_address);
+ SET_IEEE80211_PERM_ADDR(il->hw, eeprom->mac_address);
+
+ /***********************
+ * 5. Setup HW Constants
+ * ********************/
+ /* Device-specific setup */
+ if (il3945_hw_set_hw_params(il)) {
+ IL_ERR("failed to set hw settings\n");
+ goto out_eeprom_free;
+ }
+
+ /***********************
+ * 6. Setup il
+ * ********************/
+
+ err = il3945_init_drv(il);
+ if (err) {
+ IL_ERR("initializing driver failed\n");
+ goto out_unset_hw_params;
+ }
+
+ IL_INFO("Detected Intel Wireless WiFi Link %s\n", il->cfg->name);
+
+ /***********************
+ * 7. Setup Services
+ * ********************/
+
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ pci_enable_msi(il->pci_dev);
+
+ err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il);
+ if (err) {
+ IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq);
+ goto out_disable_msi;
+ }
+
+ err = sysfs_create_group(&pdev->dev.kobj, &il3945_attribute_group);
+ if (err) {
+ IL_ERR("failed to create sysfs device attributes\n");
+ goto out_release_irq;
+ }
+
+ il_set_rxon_channel(il, &il->bands[IEEE80211_BAND_2GHZ].channels[5],
+ &il->ctx);
+ il3945_setup_deferred_work(il);
+ il3945_setup_handlers(il);
+ il_power_initialize(il);
+
+ /*********************************
+ * 8. Setup and Register mac80211
+ * *******************************/
+
+ il_enable_interrupts(il);
+
+ err = il3945_setup_mac(il);
+ if (err)
+ goto out_remove_sysfs;
+
+ err = il_dbgfs_register(il, DRV_NAME);
+ if (err)
+ IL_ERR("failed to create debugfs files. Ignoring error: %d\n",
+ err);
+
+ /* Start monitoring the killswitch */
+ queue_delayed_work(il->workqueue, &il->_3945.rfkill_poll, 2 * HZ);
+
+ return 0;
+
+out_remove_sysfs:
+ destroy_workqueue(il->workqueue);
+ il->workqueue = NULL;
+ sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group);
+out_release_irq:
+ free_irq(il->pci_dev->irq, il);
+out_disable_msi:
+ pci_disable_msi(il->pci_dev);
+ il_free_geos(il);
+ il_free_channel_map(il);
+out_unset_hw_params:
+ il3945_unset_hw_params(il);
+out_eeprom_free:
+ il_eeprom_free(il);
+out_iounmap:
+ pci_iounmap(pdev, il->hw_base);
+out_pci_release_regions:
+ pci_release_regions(pdev);
+out_pci_disable_device:
+ pci_set_drvdata(pdev, NULL);
+ pci_disable_device(pdev);
+out_ieee80211_free_hw:
+ il_free_traffic_mem(il);
+ ieee80211_free_hw(il->hw);
+out:
+ return err;
+}
+
+static void __devexit
+il3945_pci_remove(struct pci_dev *pdev)
+{
+ struct il_priv *il = pci_get_drvdata(pdev);
+ unsigned long flags;
+
+ if (!il)
+ return;
+
+ D_INFO("*** UNLOAD DRIVER ***\n");
+
+ il_dbgfs_unregister(il);
+
+ set_bit(S_EXIT_PENDING, &il->status);
+
+ il_leds_exit(il);
+
+ if (il->mac80211_registered) {
+ ieee80211_unregister_hw(il->hw);
+ il->mac80211_registered = 0;
+ } else {
+ il3945_down(il);
+ }
+
+ /*
+ * Make sure device is reset to low power before unloading driver.
+ * This may be redundant with il_down(), but there are paths to
+ * run il_down() without calling apm_ops.stop(), and there are
+ * paths to avoid running il_down() at all before leaving driver.
+ * This (inexpensive) call *makes sure* device is reset.
+ */
+ il_apm_stop(il);
+
+ /* make sure we flush any pending irq or
+ * tasklet for the driver
+ */
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ il3945_synchronize_irq(il);
+
+ sysfs_remove_group(&pdev->dev.kobj, &il3945_attribute_group);
+
+ cancel_delayed_work_sync(&il->_3945.rfkill_poll);
+
+ il3945_dealloc_ucode_pci(il);
+
+ if (il->rxq.bd)
+ il3945_rx_queue_free(il, &il->rxq);
+ il3945_hw_txq_ctx_free(il);
+
+ il3945_unset_hw_params(il);
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(il->workqueue);
+
+ /* ieee80211_unregister_hw calls il3945_mac_stop, which flushes
+ * il->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(il->workqueue);
+ il->workqueue = NULL;
+ il_free_traffic_mem(il);
+
+ free_irq(pdev->irq, il);
+ pci_disable_msi(pdev);
+
+ pci_iounmap(pdev, il->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ il_free_channel_map(il);
+ il_free_geos(il);
+ kfree(il->scan_cmd);
+ if (il->beacon_skb)
+ dev_kfree_skb(il->beacon_skb);
+
+ ieee80211_free_hw(il->hw);
+}
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+static struct pci_driver il3945_driver = {
+ .name = DRV_NAME,
+ .id_table = il3945_hw_card_ids,
+ .probe = il3945_pci_probe,
+ .remove = __devexit_p(il3945_pci_remove),
+ .driver.pm = IL_LEGACY_PM_OPS,
+};
+
+static int __init
+il3945_init(void)
+{
+
+ int ret;
+ pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ pr_info(DRV_COPYRIGHT "\n");
+
+ ret = il3945_rate_control_register();
+ if (ret) {
+ pr_err("Unable to register rate control algorithm: %d\n", ret);
+ return ret;
+ }
+
+ ret = pci_register_driver(&il3945_driver);
+ if (ret) {
+ pr_err("Unable to initialize PCI module\n");
+ goto error_register;
+ }
+
+ return ret;
+
+error_register:
+ il3945_rate_control_unregister();
+ return ret;
+}
+
+static void __exit
+il3945_exit(void)
+{
+ pci_unregister_driver(&il3945_driver);
+ il3945_rate_control_unregister();
+}
+
+MODULE_FIRMWARE(IL3945_MODULE_FIRMWARE(IL3945_UCODE_API_MAX));
+
+module_param_named(antenna, il3945_mod_params.antenna, int, S_IRUGO);
+MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
+module_param_named(swcrypto, il3945_mod_params.sw_crypto, int, S_IRUGO);
+MODULE_PARM_DESC(swcrypto, "using software crypto (default 1 [software])");
+module_param_named(disable_hw_scan, il3945_mod_params.disable_hw_scan, int,
+ S_IRUGO);
+MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)");
+#ifdef CONFIG_IWLEGACY_DEBUG
+module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif
+module_param_named(fw_restart, il3945_mod_params.restart_fw, int, S_IRUGO);
+MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
+
+module_exit(il3945_exit);
+module_init(il3945_init);
diff --git a/drivers/net/wireless/iwlegacy/3945-rs.c b/drivers/net/wireless/iwlegacy/3945-rs.c
new file mode 100644
index 0000000..30ad404
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/3945-rs.c
@@ -0,0 +1,995 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <net/mac80211.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+
+#include <linux/workqueue.h>
+
+#include "commands.h"
+#include "3945.h"
+
+#define RS_NAME "iwl-3945-rs"
+
+static s32 il3945_expected_tpt_g[RATE_COUNT_3945] = {
+ 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
+};
+
+static s32 il3945_expected_tpt_g_prot[RATE_COUNT_3945] = {
+ 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
+};
+
+static s32 il3945_expected_tpt_a[RATE_COUNT_3945] = {
+ 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
+};
+
+static s32 il3945_expected_tpt_b[RATE_COUNT_3945] = {
+ 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
+};
+
+struct il3945_tpt_entry {
+ s8 min_rssi;
+ u8 idx;
+};
+
+static struct il3945_tpt_entry il3945_tpt_table_a[] = {
+ {-60, RATE_54M_IDX},
+ {-64, RATE_48M_IDX},
+ {-72, RATE_36M_IDX},
+ {-80, RATE_24M_IDX},
+ {-84, RATE_18M_IDX},
+ {-85, RATE_12M_IDX},
+ {-87, RATE_9M_IDX},
+ {-89, RATE_6M_IDX}
+};
+
+static struct il3945_tpt_entry il3945_tpt_table_g[] = {
+ {-60, RATE_54M_IDX},
+ {-64, RATE_48M_IDX},
+ {-68, RATE_36M_IDX},
+ {-80, RATE_24M_IDX},
+ {-84, RATE_18M_IDX},
+ {-85, RATE_12M_IDX},
+ {-86, RATE_11M_IDX},
+ {-88, RATE_5M_IDX},
+ {-90, RATE_2M_IDX},
+ {-92, RATE_1M_IDX}
+};
+
+#define RATE_MAX_WINDOW 62
+#define RATE_FLUSH (3*HZ)
+#define RATE_WIN_FLUSH (HZ/2)
+#define IL39_RATE_HIGH_TH 11520
+#define IL_SUCCESS_UP_TH 8960
+#define IL_SUCCESS_DOWN_TH 10880
+#define RATE_MIN_FAILURE_TH 6
+#define RATE_MIN_SUCCESS_TH 8
+#define RATE_DECREASE_TH 1920
+#define RATE_RETRY_TH 15
+
+static u8
+il3945_get_rate_idx_by_rssi(s32 rssi, enum ieee80211_band band)
+{
+ u32 idx = 0;
+ u32 table_size = 0;
+ struct il3945_tpt_entry *tpt_table = NULL;
+
+ if (rssi < IL_MIN_RSSI_VAL || rssi > IL_MAX_RSSI_VAL)
+ rssi = IL_MIN_RSSI_VAL;
+
+ switch (band) {
+ case IEEE80211_BAND_2GHZ:
+ tpt_table = il3945_tpt_table_g;
+ table_size = ARRAY_SIZE(il3945_tpt_table_g);
+ break;
+
+ case IEEE80211_BAND_5GHZ:
+ tpt_table = il3945_tpt_table_a;
+ table_size = ARRAY_SIZE(il3945_tpt_table_a);
+ break;
+
+ default:
+ BUG();
+ break;
+ }
+
+ while (idx < table_size && rssi < tpt_table[idx].min_rssi)
+ idx++;
+
+ idx = min(idx, (table_size - 1));
+
+ return tpt_table[idx].idx;
+}
+
+static void
+il3945_clear_win(struct il3945_rate_scale_data *win)
+{
+ win->data = 0;
+ win->success_counter = 0;
+ win->success_ratio = -1;
+ win->counter = 0;
+ win->average_tpt = IL_INVALID_VALUE;
+ win->stamp = 0;
+}
+
+/**
+ * il3945_rate_scale_flush_wins - flush out the rate scale wins
+ *
+ * Returns the number of wins that have gathered data but were
+ * not flushed. If there were any that were not flushed, then
+ * reschedule the rate flushing routine.
+ */
+static int
+il3945_rate_scale_flush_wins(struct il3945_rs_sta *rs_sta)
+{
+ int unflushed = 0;
+ int i;
+ unsigned long flags;
+ struct il_priv *il __maybe_unused = rs_sta->il;
+
+ /*
+ * For each rate, if we have collected data on that rate
+ * and it has been more than RATE_WIN_FLUSH
+ * since we flushed, clear out the gathered stats
+ */
+ for (i = 0; i < RATE_COUNT_3945; i++) {
+ if (!rs_sta->win[i].counter)
+ continue;
+
+ spin_lock_irqsave(&rs_sta->lock, flags);
+ if (time_after(jiffies, rs_sta->win[i].stamp + RATE_WIN_FLUSH)) {
+ D_RATE("flushing %d samples of rate " "idx %d\n",
+ rs_sta->win[i].counter, i);
+ il3945_clear_win(&rs_sta->win[i]);
+ } else
+ unflushed++;
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+ }
+
+ return unflushed;
+}
+
+#define RATE_FLUSH_MAX 5000 /* msec */
+#define RATE_FLUSH_MIN 50 /* msec */
+#define IL_AVERAGE_PACKETS 1500
+
+static void
+il3945_bg_rate_scale_flush(unsigned long data)
+{
+ struct il3945_rs_sta *rs_sta = (void *)data;
+ struct il_priv *il __maybe_unused = rs_sta->il;
+ int unflushed = 0;
+ unsigned long flags;
+ u32 packet_count, duration, pps;
+
+ D_RATE("enter\n");
+
+ unflushed = il3945_rate_scale_flush_wins(rs_sta);
+
+ spin_lock_irqsave(&rs_sta->lock, flags);
+
+ /* Number of packets Rx'd since last time this timer ran */
+ packet_count = (rs_sta->tx_packets - rs_sta->last_tx_packets) + 1;
+
+ rs_sta->last_tx_packets = rs_sta->tx_packets + 1;
+
+ if (unflushed) {
+ duration =
+ jiffies_to_msecs(jiffies - rs_sta->last_partial_flush);
+
+ D_RATE("Tx'd %d packets in %dms\n", packet_count, duration);
+
+ /* Determine packets per second */
+ if (duration)
+ pps = (packet_count * 1000) / duration;
+ else
+ pps = 0;
+
+ if (pps) {
+ duration = (IL_AVERAGE_PACKETS * 1000) / pps;
+ if (duration < RATE_FLUSH_MIN)
+ duration = RATE_FLUSH_MIN;
+ else if (duration > RATE_FLUSH_MAX)
+ duration = RATE_FLUSH_MAX;
+ } else
+ duration = RATE_FLUSH_MAX;
+
+ rs_sta->flush_time = msecs_to_jiffies(duration);
+
+ D_RATE("new flush period: %d msec ave %d\n", duration,
+ packet_count);
+
+ mod_timer(&rs_sta->rate_scale_flush,
+ jiffies + rs_sta->flush_time);
+
+ rs_sta->last_partial_flush = jiffies;
+ } else {
+ rs_sta->flush_time = RATE_FLUSH;
+ rs_sta->flush_pending = 0;
+ }
+ /* If there weren't any unflushed entries, we don't schedule the timer
+ * to run again */
+
+ rs_sta->last_flush = jiffies;
+
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+ D_RATE("leave\n");
+}
+
+/**
+ * il3945_collect_tx_data - Update the success/failure sliding win
+ *
+ * We keep a sliding win of the last 64 packets transmitted
+ * at this rate. win->data contains the bitmask of successful
+ * packets.
+ */
+static void
+il3945_collect_tx_data(struct il3945_rs_sta *rs_sta,
+ struct il3945_rate_scale_data *win, int success,
+ int retries, int idx)
+{
+ unsigned long flags;
+ s32 fail_count;
+ struct il_priv *il __maybe_unused = rs_sta->il;
+
+ if (!retries) {
+ D_RATE("leave: retries == 0 -- should be at least 1\n");
+ return;
+ }
+
+ spin_lock_irqsave(&rs_sta->lock, flags);
+
+ /*
+ * Keep track of only the latest 62 tx frame attempts in this rate's
+ * history win; anything older isn't really relevant any more.
+ * If we have filled up the sliding win, drop the oldest attempt;
+ * if the oldest attempt (highest bit in bitmap) shows "success",
+ * subtract "1" from the success counter (this is the main reason
+ * we keep these bitmaps!).
+ * */
+ while (retries > 0) {
+ if (win->counter >= RATE_MAX_WINDOW) {
+
+ /* remove earliest */
+ win->counter = RATE_MAX_WINDOW - 1;
+
+ if (win->data & (1ULL << (RATE_MAX_WINDOW - 1))) {
+ win->data &= ~(1ULL << (RATE_MAX_WINDOW - 1));
+ win->success_counter--;
+ }
+ }
+
+ /* Increment frames-attempted counter */
+ win->counter++;
+
+ /* Shift bitmap by one frame (throw away oldest history),
+ * OR in "1", and increment "success" if this
+ * frame was successful. */
+ win->data <<= 1;
+ if (success > 0) {
+ win->success_counter++;
+ win->data |= 0x1;
+ success--;
+ }
+
+ retries--;
+ }
+
+ /* Calculate current success ratio, avoid divide-by-0! */
+ if (win->counter > 0)
+ win->success_ratio =
+ 128 * (100 * win->success_counter) / win->counter;
+ else
+ win->success_ratio = IL_INVALID_VALUE;
+
+ fail_count = win->counter - win->success_counter;
+
+ /* Calculate average throughput, if we have enough history. */
+ if (fail_count >= RATE_MIN_FAILURE_TH ||
+ win->success_counter >= RATE_MIN_SUCCESS_TH)
+ win->average_tpt =
+ ((win->success_ratio * rs_sta->expected_tpt[idx] +
+ 64) / 128);
+ else
+ win->average_tpt = IL_INVALID_VALUE;
+
+ /* Tag this win as having been updated */
+ win->stamp = jiffies;
+
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+}
+
+/*
+ * Called after adding a new station to initialize rate scaling
+ */
+void
+il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, u8 sta_id)
+{
+ struct ieee80211_hw *hw = il->hw;
+ struct ieee80211_conf *conf = &il->hw->conf;
+ struct il3945_sta_priv *psta;
+ struct il3945_rs_sta *rs_sta;
+ struct ieee80211_supported_band *sband;
+ int i;
+
+ D_INFO("enter\n");
+ if (sta_id == il->ctx.bcast_sta_id)
+ goto out;
+
+ psta = (struct il3945_sta_priv *)sta->drv_priv;
+ rs_sta = &psta->rs_sta;
+ sband = hw->wiphy->bands[conf->channel->band];
+
+ rs_sta->il = il;
+
+ rs_sta->start_rate = RATE_INVALID;
+
+ /* default to just 802.11b */
+ rs_sta->expected_tpt = il3945_expected_tpt_b;
+
+ rs_sta->last_partial_flush = jiffies;
+ rs_sta->last_flush = jiffies;
+ rs_sta->flush_time = RATE_FLUSH;
+ rs_sta->last_tx_packets = 0;
+
+ rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
+ rs_sta->rate_scale_flush.function = il3945_bg_rate_scale_flush;
+
+ for (i = 0; i < RATE_COUNT_3945; i++)
+ il3945_clear_win(&rs_sta->win[i]);
+
+ /* TODO: what is a good starting rate for STA? About middle? Maybe not
+ * the lowest or the highest rate.. Could consider using RSSI from
+ * previous packets? Need to have IEEE 802.1X auth succeed immediately
+ * after assoc.. */
+
+ for (i = sband->n_bitrates - 1; i >= 0; i--) {
+ if (sta->supp_rates[sband->band] & (1 << i)) {
+ rs_sta->last_txrate_idx = i;
+ break;
+ }
+ }
+
+ il->_3945.sta_supp_rates = sta->supp_rates[sband->band];
+ /* For 5 GHz band it start at IL_FIRST_OFDM_RATE */
+ if (sband->band == IEEE80211_BAND_5GHZ) {
+ rs_sta->last_txrate_idx += IL_FIRST_OFDM_RATE;
+ il->_3945.sta_supp_rates =
+ il->_3945.sta_supp_rates << IL_FIRST_OFDM_RATE;
+ }
+
+out:
+ il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
+
+ D_INFO("leave\n");
+}
+
+static void *
+il3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
+{
+ return hw->priv;
+}
+
+/* rate scale requires free function to be implemented */
+static void
+il3945_rs_free(void *il)
+{
+ return;
+}
+
+static void *
+il3945_rs_alloc_sta(void *il_priv, struct ieee80211_sta *sta, gfp_t gfp)
+{
+ struct il3945_rs_sta *rs_sta;
+ struct il3945_sta_priv *psta = (void *)sta->drv_priv;
+ struct il_priv *il __maybe_unused = il_priv;
+
+ D_RATE("enter\n");
+
+ rs_sta = &psta->rs_sta;
+
+ spin_lock_init(&rs_sta->lock);
+ init_timer(&rs_sta->rate_scale_flush);
+
+ D_RATE("leave\n");
+
+ return rs_sta;
+}
+
+static void
+il3945_rs_free_sta(void *il_priv, struct ieee80211_sta *sta, void *il_sta)
+{
+ struct il3945_rs_sta *rs_sta = il_sta;
+
+ /*
+ * Be careful not to use any members of il3945_rs_sta (like trying
+ * to use il_priv to print out debugging) since it may not be fully
+ * initialized at this point.
+ */
+ del_timer_sync(&rs_sta->rate_scale_flush);
+}
+
+/**
+ * il3945_rs_tx_status - Update rate control values based on Tx results
+ *
+ * NOTE: Uses il_priv->retry_rate for the # of retries attempted by
+ * the hardware for each rate.
+ */
+static void
+il3945_rs_tx_status(void *il_rate, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *il_sta,
+ struct sk_buff *skb)
+{
+ s8 retries = 0, current_count;
+ int scale_rate_idx, first_idx, last_idx;
+ unsigned long flags;
+ struct il_priv *il = (struct il_priv *)il_rate;
+ struct il3945_rs_sta *rs_sta = il_sta;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ D_RATE("enter\n");
+
+ retries = info->status.rates[0].count;
+ /* Sanity Check for retries */
+ if (retries > RATE_RETRY_TH)
+ retries = RATE_RETRY_TH;
+
+ first_idx = sband->bitrates[info->status.rates[0].idx].hw_value;
+ if (first_idx < 0 || first_idx >= RATE_COUNT_3945) {
+ D_RATE("leave: Rate out of bounds: %d\n", first_idx);
+ return;
+ }
+
+ if (!il_sta) {
+ D_RATE("leave: No STA il data to update!\n");
+ return;
+ }
+
+ /* Treat uninitialized rate scaling data same as non-existing. */
+ if (!rs_sta->il) {
+ D_RATE("leave: STA il data uninitialized!\n");
+ return;
+ }
+
+ rs_sta->tx_packets++;
+
+ scale_rate_idx = first_idx;
+ last_idx = first_idx;
+
+ /*
+ * Update the win for each rate. We determine which rates
+ * were Tx'd based on the total number of retries vs. the number
+ * of retries configured for each rate -- currently set to the
+ * il value 'retry_rate' vs. rate specific
+ *
+ * On exit from this while loop last_idx indicates the rate
+ * at which the frame was finally transmitted (or failed if no
+ * ACK)
+ */
+ while (retries > 1) {
+ if ((retries - 1) < il->retry_rate) {
+ current_count = (retries - 1);
+ last_idx = scale_rate_idx;
+ } else {
+ current_count = il->retry_rate;
+ last_idx = il3945_rs_next_rate(il, scale_rate_idx);
+ }
+
+ /* Update this rate accounting for as many retries
+ * as was used for it (per current_count) */
+ il3945_collect_tx_data(rs_sta, &rs_sta->win[scale_rate_idx], 0,
+ current_count, scale_rate_idx);
+ D_RATE("Update rate %d for %d retries.\n", scale_rate_idx,
+ current_count);
+
+ retries -= current_count;
+
+ scale_rate_idx = last_idx;
+ }
+
+ /* Update the last idx win with success/failure based on ACK */
+ D_RATE("Update rate %d with %s.\n", last_idx,
+ (info->flags & IEEE80211_TX_STAT_ACK) ? "success" : "failure");
+ il3945_collect_tx_data(rs_sta, &rs_sta->win[last_idx],
+ info->flags & IEEE80211_TX_STAT_ACK, 1,
+ last_idx);
+
+ /* We updated the rate scale win -- if its been more than
+ * flush_time since the last run, schedule the flush
+ * again */
+ spin_lock_irqsave(&rs_sta->lock, flags);
+
+ if (!rs_sta->flush_pending &&
+ time_after(jiffies, rs_sta->last_flush + rs_sta->flush_time)) {
+
+ rs_sta->last_partial_flush = jiffies;
+ rs_sta->flush_pending = 1;
+ mod_timer(&rs_sta->rate_scale_flush,
+ jiffies + rs_sta->flush_time);
+ }
+
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+ D_RATE("leave\n");
+}
+
+static u16
+il3945_get_adjacent_rate(struct il3945_rs_sta *rs_sta, u8 idx, u16 rate_mask,
+ enum ieee80211_band band)
+{
+ u8 high = RATE_INVALID;
+ u8 low = RATE_INVALID;
+ struct il_priv *il __maybe_unused = rs_sta->il;
+
+ /* 802.11A walks to the next literal adjacent rate in
+ * the rate table */
+ if (unlikely(band == IEEE80211_BAND_5GHZ)) {
+ int i;
+ u32 mask;
+
+ /* Find the previous rate that is in the rate mask */
+ i = idx - 1;
+ for (mask = (1 << i); i >= 0; i--, mask >>= 1) {
+ if (rate_mask & mask) {
+ low = i;
+ break;
+ }
+ }
+
+ /* Find the next rate that is in the rate mask */
+ i = idx + 1;
+ for (mask = (1 << i); i < RATE_COUNT_3945; i++, mask <<= 1) {
+ if (rate_mask & mask) {
+ high = i;
+ break;
+ }
+ }
+
+ return (high << 8) | low;
+ }
+
+ low = idx;
+ while (low != RATE_INVALID) {
+ if (rs_sta->tgg)
+ low = il3945_rates[low].prev_rs_tgg;
+ else
+ low = il3945_rates[low].prev_rs;
+ if (low == RATE_INVALID)
+ break;
+ if (rate_mask & (1 << low))
+ break;
+ D_RATE("Skipping masked lower rate: %d\n", low);
+ }
+
+ high = idx;
+ while (high != RATE_INVALID) {
+ if (rs_sta->tgg)
+ high = il3945_rates[high].next_rs_tgg;
+ else
+ high = il3945_rates[high].next_rs;
+ if (high == RATE_INVALID)
+ break;
+ if (rate_mask & (1 << high))
+ break;
+ D_RATE("Skipping masked higher rate: %d\n", high);
+ }
+
+ return (high << 8) | low;
+}
+
+/**
+ * il3945_rs_get_rate - find the rate for the requested packet
+ *
+ * Returns the ieee80211_rate structure allocated by the driver.
+ *
+ * The rate control algorithm has no internal mapping between hw_mode's
+ * rate ordering and the rate ordering used by the rate control algorithm.
+ *
+ * The rate control algorithm uses a single table of rates that goes across
+ * the entire A/B/G spectrum vs. being limited to just one particular
+ * hw_mode.
+ *
+ * As such, we can't convert the idx obtained below into the hw_mode's
+ * rate table and must reference the driver allocated rate table
+ *
+ */
+static void
+il3945_rs_get_rate(void *il_r, struct ieee80211_sta *sta, void *il_sta,
+ struct ieee80211_tx_rate_control *txrc)
+{
+ struct ieee80211_supported_band *sband = txrc->sband;
+ struct sk_buff *skb = txrc->skb;
+ u8 low = RATE_INVALID;
+ u8 high = RATE_INVALID;
+ u16 high_low;
+ int idx;
+ struct il3945_rs_sta *rs_sta = il_sta;
+ struct il3945_rate_scale_data *win = NULL;
+ int current_tpt = IL_INVALID_VALUE;
+ int low_tpt = IL_INVALID_VALUE;
+ int high_tpt = IL_INVALID_VALUE;
+ u32 fail_count;
+ s8 scale_action = 0;
+ unsigned long flags;
+ u16 rate_mask;
+ s8 max_rate_idx = -1;
+ struct il_priv *il __maybe_unused = (struct il_priv *)il_r;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+
+ D_RATE("enter\n");
+
+ /* Treat uninitialized rate scaling data same as non-existing. */
+ if (rs_sta && !rs_sta->il) {
+ D_RATE("Rate scaling information not initialized yet.\n");
+ il_sta = NULL;
+ }
+
+ if (rate_control_send_low(sta, il_sta, txrc))
+ return;
+
+ rate_mask = sta->supp_rates[sband->band];
+
+ /* get user max rate if set */
+ max_rate_idx = txrc->max_rate_idx;
+ if (sband->band == IEEE80211_BAND_5GHZ && max_rate_idx != -1)
+ max_rate_idx += IL_FIRST_OFDM_RATE;
+ if (max_rate_idx < 0 || max_rate_idx >= RATE_COUNT)
+ max_rate_idx = -1;
+
+ idx = min(rs_sta->last_txrate_idx & 0xffff, RATE_COUNT_3945 - 1);
+
+ if (sband->band == IEEE80211_BAND_5GHZ)
+ rate_mask = rate_mask << IL_FIRST_OFDM_RATE;
+
+ spin_lock_irqsave(&rs_sta->lock, flags);
+
+ /* for recent assoc, choose best rate regarding
+ * to rssi value
+ */
+ if (rs_sta->start_rate != RATE_INVALID) {
+ if (rs_sta->start_rate < idx &&
+ (rate_mask & (1 << rs_sta->start_rate)))
+ idx = rs_sta->start_rate;
+ rs_sta->start_rate = RATE_INVALID;
+ }
+
+ /* force user max rate if set by user */
+ if (max_rate_idx != -1 && max_rate_idx < idx) {
+ if (rate_mask & (1 << max_rate_idx))
+ idx = max_rate_idx;
+ }
+
+ win = &(rs_sta->win[idx]);
+
+ fail_count = win->counter - win->success_counter;
+
+ if (fail_count < RATE_MIN_FAILURE_TH &&
+ win->success_counter < RATE_MIN_SUCCESS_TH) {
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+ D_RATE("Invalid average_tpt on rate %d: "
+ "counter: %d, success_counter: %d, "
+ "expected_tpt is %sNULL\n", idx, win->counter,
+ win->success_counter,
+ rs_sta->expected_tpt ? "not " : "");
+
+ /* Can't calculate this yet; not enough history */
+ win->average_tpt = IL_INVALID_VALUE;
+ goto out;
+
+ }
+
+ current_tpt = win->average_tpt;
+
+ high_low =
+ il3945_get_adjacent_rate(rs_sta, idx, rate_mask, sband->band);
+ low = high_low & 0xff;
+ high = (high_low >> 8) & 0xff;
+
+ /* If user set max rate, dont allow higher than user constrain */
+ if (max_rate_idx != -1 && max_rate_idx < high)
+ high = RATE_INVALID;
+
+ /* Collect Measured throughputs of adjacent rates */
+ if (low != RATE_INVALID)
+ low_tpt = rs_sta->win[low].average_tpt;
+
+ if (high != RATE_INVALID)
+ high_tpt = rs_sta->win[high].average_tpt;
+
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+ scale_action = 0;
+
+ /* Low success ratio , need to drop the rate */
+ if (win->success_ratio < RATE_DECREASE_TH || !current_tpt) {
+ D_RATE("decrease rate because of low success_ratio\n");
+ scale_action = -1;
+ /* No throughput measured yet for adjacent rates,
+ * try increase */
+ } else if (low_tpt == IL_INVALID_VALUE && high_tpt == IL_INVALID_VALUE) {
+
+ if (high != RATE_INVALID &&
+ win->success_ratio >= RATE_INCREASE_TH)
+ scale_action = 1;
+ else if (low != RATE_INVALID)
+ scale_action = 0;
+
+ /* Both adjacent throughputs are measured, but neither one has
+ * better throughput; we're using the best rate, don't change
+ * it! */
+ } else if (low_tpt != IL_INVALID_VALUE && high_tpt != IL_INVALID_VALUE
+ && low_tpt < current_tpt && high_tpt < current_tpt) {
+
+ D_RATE("No action -- low [%d] & high [%d] < "
+ "current_tpt [%d]\n", low_tpt, high_tpt, current_tpt);
+ scale_action = 0;
+
+ /* At least one of the rates has better throughput */
+ } else {
+ if (high_tpt != IL_INVALID_VALUE) {
+
+ /* High rate has better throughput, Increase
+ * rate */
+ if (high_tpt > current_tpt &&
+ win->success_ratio >= RATE_INCREASE_TH)
+ scale_action = 1;
+ else {
+ D_RATE("decrease rate because of high tpt\n");
+ scale_action = 0;
+ }
+ } else if (low_tpt != IL_INVALID_VALUE) {
+ if (low_tpt > current_tpt) {
+ D_RATE("decrease rate because of low tpt\n");
+ scale_action = -1;
+ } else if (win->success_ratio >= RATE_INCREASE_TH) {
+ /* Lower rate has better
+ * throughput,decrease rate */
+ scale_action = 1;
+ }
+ }
+ }
+
+ /* Sanity check; asked for decrease, but success rate or throughput
+ * has been good at old rate. Don't change it. */
+ if (scale_action == -1 && low != RATE_INVALID &&
+ (win->success_ratio > RATE_HIGH_TH ||
+ current_tpt > 100 * rs_sta->expected_tpt[low]))
+ scale_action = 0;
+
+ switch (scale_action) {
+ case -1:
+
+ /* Decrese rate */
+ if (low != RATE_INVALID)
+ idx = low;
+ break;
+
+ case 1:
+ /* Increase rate */
+ if (high != RATE_INVALID)
+ idx = high;
+
+ break;
+
+ case 0:
+ default:
+ /* No change */
+ break;
+ }
+
+ D_RATE("Selected %d (action %d) - low %d high %d\n", idx, scale_action,
+ low, high);
+
+out:
+
+ if (sband->band == IEEE80211_BAND_5GHZ) {
+ if (WARN_ON_ONCE(idx < IL_FIRST_OFDM_RATE))
+ idx = IL_FIRST_OFDM_RATE;
+ rs_sta->last_txrate_idx = idx;
+ info->control.rates[0].idx = idx - IL_FIRST_OFDM_RATE;
+ } else {
+ rs_sta->last_txrate_idx = idx;
+ info->control.rates[0].idx = rs_sta->last_txrate_idx;
+ }
+
+ D_RATE("leave: %d\n", idx);
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static int
+il3945_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t
+il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buff;
+ int desc = 0;
+ int j;
+ ssize_t ret;
+ struct il3945_rs_sta *lq_sta = file->private_data;
+
+ buff = kmalloc(1024, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
+ desc +=
+ sprintf(buff + desc,
+ "tx packets=%d last rate idx=%d\n"
+ "rate=0x%X flush time %d\n", lq_sta->tx_packets,
+ lq_sta->last_txrate_idx, lq_sta->start_rate,
+ jiffies_to_msecs(lq_sta->flush_time));
+ for (j = 0; j < RATE_COUNT_3945; j++) {
+ desc +=
+ sprintf(buff + desc, "counter=%d success=%d %%=%d\n",
+ lq_sta->win[j].counter,
+ lq_sta->win[j].success_counter,
+ lq_sta->win[j].success_ratio);
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ kfree(buff);
+ return ret;
+}
+
+static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
+ .read = il3945_sta_dbgfs_stats_table_read,
+ .open = il3945_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static void
+il3945_add_debugfs(void *il, void *il_sta, struct dentry *dir)
+{
+ struct il3945_rs_sta *lq_sta = il_sta;
+
+ lq_sta->rs_sta_dbgfs_stats_table_file =
+ debugfs_create_file("rate_stats_table", 0600, dir, lq_sta,
+ &rs_sta_dbgfs_stats_table_ops);
+
+}
+
+static void
+il3945_remove_debugfs(void *il, void *il_sta)
+{
+ struct il3945_rs_sta *lq_sta = il_sta;
+ debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
+}
+#endif
+
+/*
+ * Initialization of rate scaling information is done by driver after
+ * the station is added. Since mac80211 calls this function before a
+ * station is added we ignore it.
+ */
+static void
+il3945_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *il_sta)
+{
+}
+
+static struct rate_control_ops rs_ops = {
+ .module = NULL,
+ .name = RS_NAME,
+ .tx_status = il3945_rs_tx_status,
+ .get_rate = il3945_rs_get_rate,
+ .rate_init = il3945_rs_rate_init_stub,
+ .alloc = il3945_rs_alloc,
+ .free = il3945_rs_free,
+ .alloc_sta = il3945_rs_alloc_sta,
+ .free_sta = il3945_rs_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = il3945_add_debugfs,
+ .remove_sta_debugfs = il3945_remove_debugfs,
+#endif
+
+};
+
+void
+il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
+{
+ struct il_priv *il = hw->priv;
+ s32 rssi = 0;
+ unsigned long flags;
+ struct il3945_rs_sta *rs_sta;
+ struct ieee80211_sta *sta;
+ struct il3945_sta_priv *psta;
+
+ D_RATE("enter\n");
+
+ rcu_read_lock();
+
+ sta =
+ ieee80211_find_sta(il->ctx.vif, il->stations[sta_id].sta.sta.addr);
+ if (!sta) {
+ D_RATE("Unable to find station to initialize rate scaling.\n");
+ rcu_read_unlock();
+ return;
+ }
+
+ psta = (void *)sta->drv_priv;
+ rs_sta = &psta->rs_sta;
+
+ spin_lock_irqsave(&rs_sta->lock, flags);
+
+ rs_sta->tgg = 0;
+ switch (il->band) {
+ case IEEE80211_BAND_2GHZ:
+ /* TODO: this always does G, not a regression */
+ if (il->ctx.active.flags & RXON_FLG_TGG_PROTECT_MSK) {
+ rs_sta->tgg = 1;
+ rs_sta->expected_tpt = il3945_expected_tpt_g_prot;
+ } else
+ rs_sta->expected_tpt = il3945_expected_tpt_g;
+ break;
+
+ case IEEE80211_BAND_5GHZ:
+ rs_sta->expected_tpt = il3945_expected_tpt_a;
+ break;
+ case IEEE80211_NUM_BANDS:
+ BUG();
+ break;
+ }
+
+ spin_unlock_irqrestore(&rs_sta->lock, flags);
+
+ rssi = il->_3945.last_rx_rssi;
+ if (rssi == 0)
+ rssi = IL_MIN_RSSI_VAL;
+
+ D_RATE("Network RSSI: %d\n", rssi);
+
+ rs_sta->start_rate = il3945_get_rate_idx_by_rssi(rssi, il->band);
+
+ D_RATE("leave: rssi %d assign rate idx: " "%d (plcp 0x%x)\n", rssi,
+ rs_sta->start_rate, il3945_rates[rs_sta->start_rate].plcp);
+ rcu_read_unlock();
+}
+
+int
+il3945_rate_control_register(void)
+{
+ return ieee80211_rate_control_register(&rs_ops);
+}
+
+void
+il3945_rate_control_unregister(void)
+{
+ ieee80211_rate_control_unregister(&rs_ops);
+}
diff --git a/drivers/net/wireless/iwlegacy/3945.c b/drivers/net/wireless/iwlegacy/3945.c
new file mode 100644
index 0000000..863664f
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -0,0 +1,2751 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <asm/unaligned.h>
+#include <net/mac80211.h>
+
+#include "common.h"
+#include "3945.h"
+
+/* Send led command */
+static int
+il3945_send_led_cmd(struct il_priv *il, struct il_led_cmd *led_cmd)
+{
+ struct il_host_cmd cmd = {
+ .id = C_LEDS,
+ .len = sizeof(struct il_led_cmd),
+ .data = led_cmd,
+ .flags = CMD_ASYNC,
+ .callback = NULL,
+ };
+
+ return il_send_cmd(il, &cmd);
+}
+
+const struct il_led_ops il3945_led_ops = {
+ .cmd = il3945_send_led_cmd,
+};
+
+#define IL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
+ [RATE_##r##M_IDX] = { RATE_##r##M_PLCP, \
+ RATE_##r##M_IEEE, \
+ RATE_##ip##M_IDX, \
+ RATE_##in##M_IDX, \
+ RATE_##rp##M_IDX, \
+ RATE_##rn##M_IDX, \
+ RATE_##pp##M_IDX, \
+ RATE_##np##M_IDX, \
+ RATE_##r##M_IDX_TBL, \
+ RATE_##ip##M_IDX_TBL }
+
+/*
+ * Parameter order:
+ * rate, prev rate, next rate, prev tgg rate, next tgg rate
+ *
+ * If there isn't a valid next or previous rate then INV is used which
+ * maps to RATE_INVALID
+ *
+ */
+const struct il3945_rate_info il3945_rates[RATE_COUNT_3945] = {
+ IL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
+ IL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
+ IL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
+ IL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
+ IL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
+ IL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
+ IL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
+ IL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */
+ IL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */
+ IL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
+ IL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
+ IL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV), /* 54mbps */
+};
+
+static inline u8
+il3945_get_prev_ieee_rate(u8 rate_idx)
+{
+ u8 rate = il3945_rates[rate_idx].prev_ieee;
+
+ if (rate == RATE_INVALID)
+ rate = rate_idx;
+ return rate;
+}
+
+/* 1 = enable the il3945_disable_events() function */
+#define IL_EVT_DISABLE (0)
+#define IL_EVT_DISABLE_SIZE (1532/32)
+
+/**
+ * il3945_disable_events - Disable selected events in uCode event log
+ *
+ * Disable an event by writing "1"s into "disable"
+ * bitmap in SRAM. Bit position corresponds to Event # (id/type).
+ * Default values of 0 enable uCode events to be logged.
+ * Use for only special debugging. This function is just a placeholder as-is,
+ * you'll need to provide the special bits! ...
+ * ... and set IL_EVT_DISABLE to 1. */
+void
+il3945_disable_events(struct il_priv *il)
+{
+ int i;
+ u32 base; /* SRAM address of event log header */
+ u32 disable_ptr; /* SRAM address of event-disable bitmap array */
+ u32 array_size; /* # of u32 entries in array */
+ static const u32 evt_disable[IL_EVT_DISABLE_SIZE] = {
+ 0x00000000, /* 31 - 0 Event id numbers */
+ 0x00000000, /* 63 - 32 */
+ 0x00000000, /* 95 - 64 */
+ 0x00000000, /* 127 - 96 */
+ 0x00000000, /* 159 - 128 */
+ 0x00000000, /* 191 - 160 */
+ 0x00000000, /* 223 - 192 */
+ 0x00000000, /* 255 - 224 */
+ 0x00000000, /* 287 - 256 */
+ 0x00000000, /* 319 - 288 */
+ 0x00000000, /* 351 - 320 */
+ 0x00000000, /* 383 - 352 */
+ 0x00000000, /* 415 - 384 */
+ 0x00000000, /* 447 - 416 */
+ 0x00000000, /* 479 - 448 */
+ 0x00000000, /* 511 - 480 */
+ 0x00000000, /* 543 - 512 */
+ 0x00000000, /* 575 - 544 */
+ 0x00000000, /* 607 - 576 */
+ 0x00000000, /* 639 - 608 */
+ 0x00000000, /* 671 - 640 */
+ 0x00000000, /* 703 - 672 */
+ 0x00000000, /* 735 - 704 */
+ 0x00000000, /* 767 - 736 */
+ 0x00000000, /* 799 - 768 */
+ 0x00000000, /* 831 - 800 */
+ 0x00000000, /* 863 - 832 */
+ 0x00000000, /* 895 - 864 */
+ 0x00000000, /* 927 - 896 */
+ 0x00000000, /* 959 - 928 */
+ 0x00000000, /* 991 - 960 */
+ 0x00000000, /* 1023 - 992 */
+ 0x00000000, /* 1055 - 1024 */
+ 0x00000000, /* 1087 - 1056 */
+ 0x00000000, /* 1119 - 1088 */
+ 0x00000000, /* 1151 - 1120 */
+ 0x00000000, /* 1183 - 1152 */
+ 0x00000000, /* 1215 - 1184 */
+ 0x00000000, /* 1247 - 1216 */
+ 0x00000000, /* 1279 - 1248 */
+ 0x00000000, /* 1311 - 1280 */
+ 0x00000000, /* 1343 - 1312 */
+ 0x00000000, /* 1375 - 1344 */
+ 0x00000000, /* 1407 - 1376 */
+ 0x00000000, /* 1439 - 1408 */
+ 0x00000000, /* 1471 - 1440 */
+ 0x00000000, /* 1503 - 1472 */
+ };
+
+ base = le32_to_cpu(il->card_alive.log_event_table_ptr);
+ if (!il3945_hw_valid_rtc_data_addr(base)) {
+ IL_ERR("Invalid event log pointer 0x%08X\n", base);
+ return;
+ }
+
+ disable_ptr = il_read_targ_mem(il, base + (4 * sizeof(u32)));
+ array_size = il_read_targ_mem(il, base + (5 * sizeof(u32)));
+
+ if (IL_EVT_DISABLE && array_size == IL_EVT_DISABLE_SIZE) {
+ D_INFO("Disabling selected uCode log events at 0x%x\n",
+ disable_ptr);
+ for (i = 0; i < IL_EVT_DISABLE_SIZE; i++)
+ il_write_targ_mem(il, disable_ptr + (i * sizeof(u32)),
+ evt_disable[i]);
+
+ } else {
+ D_INFO("Selected uCode log events may be disabled\n");
+ D_INFO(" by writing \"1\"s into disable bitmap\n");
+ D_INFO(" in SRAM at 0x%x, size %d u32s\n", disable_ptr,
+ array_size);
+ }
+
+}
+
+static int
+il3945_hwrate_to_plcp_idx(u8 plcp)
+{
+ int idx;
+
+ for (idx = 0; idx < RATE_COUNT_3945; idx++)
+ if (il3945_rates[idx].plcp == plcp)
+ return idx;
+ return -1;
+}
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
+
+static const char *
+il3945_get_tx_fail_reason(u32 status)
+{
+ switch (status & TX_STATUS_MSK) {
+ case TX_3945_STATUS_SUCCESS:
+ return "SUCCESS";
+ TX_STATUS_ENTRY(SHORT_LIMIT);
+ TX_STATUS_ENTRY(LONG_LIMIT);
+ TX_STATUS_ENTRY(FIFO_UNDERRUN);
+ TX_STATUS_ENTRY(MGMNT_ABORT);
+ TX_STATUS_ENTRY(NEXT_FRAG);
+ TX_STATUS_ENTRY(LIFE_EXPIRE);
+ TX_STATUS_ENTRY(DEST_PS);
+ TX_STATUS_ENTRY(ABORTED);
+ TX_STATUS_ENTRY(BT_RETRY);
+ TX_STATUS_ENTRY(STA_INVALID);
+ TX_STATUS_ENTRY(FRAG_DROPPED);
+ TX_STATUS_ENTRY(TID_DISABLE);
+ TX_STATUS_ENTRY(FRAME_FLUSHED);
+ TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
+ TX_STATUS_ENTRY(TX_LOCKED);
+ TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
+ }
+
+ return "UNKNOWN";
+}
+#else
+static inline const char *
+il3945_get_tx_fail_reason(u32 status)
+{
+ return "";
+}
+#endif
+
+/*
+ * get ieee prev rate from rate scale table.
+ * for A and B mode we need to overright prev
+ * value
+ */
+int
+il3945_rs_next_rate(struct il_priv *il, int rate)
+{
+ int next_rate = il3945_get_prev_ieee_rate(rate);
+
+ switch (il->band) {
+ case IEEE80211_BAND_5GHZ:
+ if (rate == RATE_12M_IDX)
+ next_rate = RATE_9M_IDX;
+ else if (rate == RATE_6M_IDX)
+ next_rate = RATE_6M_IDX;
+ break;
+ case IEEE80211_BAND_2GHZ:
+ if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) &&
+ il_is_associated(il)) {
+ if (rate == RATE_11M_IDX)
+ next_rate = RATE_5M_IDX;
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return next_rate;
+}
+
+/**
+ * il3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
+ *
+ * When FW advances 'R' idx, all entries between old and new 'R' idx
+ * need to be reclaimed. As result, some free space forms. If there is
+ * enough free space (> low mark), wake the stack that feeds us.
+ */
+static void
+il3945_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx)
+{
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct il_queue *q = &txq->q;
+ struct il_tx_info *tx_info;
+
+ BUG_ON(txq_id == IL39_CMD_QUEUE_NUM);
+
+ for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
+ q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+
+ tx_info = &txq->txb[txq->q.read_ptr];
+ ieee80211_tx_status_irqsafe(il->hw, tx_info->skb);
+ tx_info->skb = NULL;
+ il->cfg->ops->lib->txq_free_tfd(il, txq);
+ }
+
+ if (il_queue_space(q) > q->low_mark && txq_id >= 0 &&
+ txq_id != IL39_CMD_QUEUE_NUM && il->mac80211_registered)
+ il_wake_queue(il, txq);
+}
+
+/**
+ * il3945_hdl_tx - Handle Tx response
+ */
+static void
+il3945_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int idx = SEQ_TO_IDX(sequence);
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct ieee80211_tx_info *info;
+ struct il3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+ u32 status = le32_to_cpu(tx_resp->status);
+ int rate_idx;
+ int fail;
+
+ if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) {
+ IL_ERR("Read idx for DMA queue txq_id (%d) idx %d "
+ "is out of range [0-%d] %d %d\n", txq_id, idx,
+ txq->q.n_bd, txq->q.write_ptr, txq->q.read_ptr);
+ return;
+ }
+
+ txq->time_stamp = jiffies;
+ info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
+ ieee80211_tx_info_clear_status(info);
+
+ /* Fill the MRR chain with some info about on-chip retransmissions */
+ rate_idx = il3945_hwrate_to_plcp_idx(tx_resp->rate);
+ if (info->band == IEEE80211_BAND_5GHZ)
+ rate_idx -= IL_FIRST_OFDM_RATE;
+
+ fail = tx_resp->failure_frame;
+
+ info->status.rates[0].idx = rate_idx;
+ info->status.rates[0].count = fail + 1; /* add final attempt */
+
+ /* tx_status->rts_retry_count = tx_resp->failure_rts; */
+ info->flags |=
+ ((status & TX_STATUS_MSK) ==
+ TX_STATUS_SUCCESS) ? IEEE80211_TX_STAT_ACK : 0;
+
+ D_TX("Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n", txq_id,
+ il3945_get_tx_fail_reason(status), status, tx_resp->rate,
+ tx_resp->failure_frame);
+
+ D_TX_REPLY("Tx queue reclaim %d\n", idx);
+ il3945_tx_queue_reclaim(il, txq_id, idx);
+
+ if (status & TX_ABORT_REQUIRED_MSK)
+ IL_ERR("TODO: Implement Tx ABORT REQUIRED!!!\n");
+}
+
+/*****************************************************************************
+ *
+ * Intel PRO/Wireless 3945ABG/BG Network Connection
+ *
+ * RX handler implementations
+ *
+ *****************************************************************************/
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+static void
+il3945_accumulative_stats(struct il_priv *il, __le32 * stats)
+{
+ int i;
+ __le32 *prev_stats;
+ u32 *accum_stats;
+ u32 *delta, *max_delta;
+
+ prev_stats = (__le32 *) &il->_3945.stats;
+ accum_stats = (u32 *) &il->_3945.accum_stats;
+ delta = (u32 *) &il->_3945.delta_stats;
+ max_delta = (u32 *) &il->_3945.max_delta;
+
+ for (i = sizeof(__le32); i < sizeof(struct il3945_notif_stats);
+ i +=
+ sizeof(__le32), stats++, prev_stats++, delta++, max_delta++,
+ accum_stats++) {
+ if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
+ *delta =
+ (le32_to_cpu(*stats) - le32_to_cpu(*prev_stats));
+ *accum_stats += *delta;
+ if (*delta > *max_delta)
+ *max_delta = *delta;
+ }
+ }
+
+ /* reset accumulative stats for "no-counter" type stats */
+ il->_3945.accum_stats.general.temperature =
+ il->_3945.stats.general.temperature;
+ il->_3945.accum_stats.general.ttl_timestamp =
+ il->_3945.stats.general.ttl_timestamp;
+}
+#endif
+
+void
+il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+
+ D_RX("Statistics notification received (%d vs %d).\n",
+ (int)sizeof(struct il3945_notif_stats),
+ le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK);
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ il3945_accumulative_stats(il, (__le32 *) &pkt->u.raw);
+#endif
+
+ memcpy(&il->_3945.stats, pkt->u.raw, sizeof(il->_3945.stats));
+}
+
+void
+il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ __le32 *flag = (__le32 *) &pkt->u.raw;
+
+ if (le32_to_cpu(*flag) & UCODE_STATS_CLEAR_MSK) {
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ memset(&il->_3945.accum_stats, 0,
+ sizeof(struct il3945_notif_stats));
+ memset(&il->_3945.delta_stats, 0,
+ sizeof(struct il3945_notif_stats));
+ memset(&il->_3945.max_delta, 0,
+ sizeof(struct il3945_notif_stats));
+#endif
+ D_RX("Statistics have been cleared\n");
+ }
+ il3945_hdl_stats(il, rxb);
+}
+
+/******************************************************************************
+ *
+ * Misc. internal state and helper functions
+ *
+ ******************************************************************************/
+
+/* This is necessary only for a number of stats, see the caller. */
+static int
+il3945_is_network_packet(struct il_priv *il, struct ieee80211_hdr *header)
+{
+ /* Filter incoming packets to determine if they are targeted toward
+ * this network, discarding packets coming from ourselves */
+ switch (il->iw_mode) {
+ case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
+ /* packets to our IBSS update information */
+ return !compare_ether_addr(header->addr3, il->bssid);
+ case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
+ /* packets to our IBSS update information */
+ return !compare_ether_addr(header->addr2, il->bssid);
+ default:
+ return 1;
+ }
+}
+
+static void
+il3945_pass_packet_to_mac80211(struct il_priv *il, struct il_rx_buf *rxb,
+ struct ieee80211_rx_status *stats)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
+ struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
+ struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
+ u16 len = le16_to_cpu(rx_hdr->len);
+ struct sk_buff *skb;
+ __le16 fc = hdr->frame_control;
+
+ /* We received data from the HW, so stop the watchdog */
+ if (unlikely
+ (len + IL39_RX_FRAME_SIZE >
+ PAGE_SIZE << il->hw_params.rx_page_order)) {
+ D_DROP("Corruption detected!\n");
+ return;
+ }
+
+ /* We only process data packets if the interface is open */
+ if (unlikely(!il->is_open)) {
+ D_DROP("Dropping packet while interface is not open.\n");
+ return;
+ }
+
+ skb = dev_alloc_skb(128);
+ if (!skb) {
+ IL_ERR("dev_alloc_skb failed\n");
+ return;
+ }
+
+ if (!il3945_mod_params.sw_crypto)
+ il_set_decrypted_flag(il, (struct ieee80211_hdr *)rxb_addr(rxb),
+ le32_to_cpu(rx_end->status), stats);
+
+ skb_add_rx_frag(skb, 0, rxb->page,
+ (void *)rx_hdr->payload - (void *)pkt, len);
+
+ il_update_stats(il, false, fc, len);
+ memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
+
+ ieee80211_rx(il->hw, skb);
+ il->alloc_rxb_page--;
+ rxb->page = NULL;
+}
+
+#define IL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
+
+static void
+il3945_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct ieee80211_hdr *header;
+ struct ieee80211_rx_status rx_status;
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il3945_rx_frame_stats *rx_stats = IL_RX_STATS(pkt);
+ struct il3945_rx_frame_hdr *rx_hdr = IL_RX_HDR(pkt);
+ struct il3945_rx_frame_end *rx_end = IL_RX_END(pkt);
+ u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
+ u16 rx_stats_noise_diff __maybe_unused =
+ le16_to_cpu(rx_stats->noise_diff);
+ u8 network_packet;
+
+ rx_status.flag = 0;
+ rx_status.mactime = le64_to_cpu(rx_end->timestamp);
+ rx_status.band =
+ (rx_hdr->
+ phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? IEEE80211_BAND_2GHZ :
+ IEEE80211_BAND_5GHZ;
+ rx_status.freq =
+ ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
+ rx_status.band);
+
+ rx_status.rate_idx = il3945_hwrate_to_plcp_idx(rx_hdr->rate);
+ if (rx_status.band == IEEE80211_BAND_5GHZ)
+ rx_status.rate_idx -= IL_FIRST_OFDM_RATE;
+
+ rx_status.antenna =
+ (le16_to_cpu(rx_hdr->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK) >>
+ 4;
+
+ /* set the preamble flag if appropriate */
+ if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+ rx_status.flag |= RX_FLAG_SHORTPRE;
+
+ if ((unlikely(rx_stats->phy_count > 20))) {
+ D_DROP("dsp size out of range [0,20]: %d/n",
+ rx_stats->phy_count);
+ return;
+ }
+
+ if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR) ||
+ !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
+ D_RX("Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
+ return;
+ }
+
+ /* Convert 3945's rssi indicator to dBm */
+ rx_status.signal = rx_stats->rssi - IL39_RSSI_OFFSET;
+
+ D_STATS("Rssi %d sig_avg %d noise_diff %d\n", rx_status.signal,
+ rx_stats_sig_avg, rx_stats_noise_diff);
+
+ header = (struct ieee80211_hdr *)IL_RX_DATA(pkt);
+
+ network_packet = il3945_is_network_packet(il, header);
+
+ D_STATS("[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
+ network_packet ? '*' : ' ', le16_to_cpu(rx_hdr->channel),
+ rx_status.signal, rx_status.signal, rx_status.rate_idx);
+
+ il_dbg_log_rx_data_frame(il, le16_to_cpu(rx_hdr->len), header);
+
+ if (network_packet) {
+ il->_3945.last_beacon_time =
+ le32_to_cpu(rx_end->beacon_timestamp);
+ il->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
+ il->_3945.last_rx_rssi = rx_status.signal;
+ }
+
+ il3945_pass_packet_to_mac80211(il, rxb, &rx_status);
+}
+
+int
+il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
+ dma_addr_t addr, u16 len, u8 reset, u8 pad)
+{
+ int count;
+ struct il_queue *q;
+ struct il3945_tfd *tfd, *tfd_tmp;
+
+ q = &txq->q;
+ tfd_tmp = (struct il3945_tfd *)txq->tfds;
+ tfd = &tfd_tmp[q->write_ptr];
+
+ if (reset)
+ memset(tfd, 0, sizeof(*tfd));
+
+ count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
+
+ if (count >= NUM_TFD_CHUNKS || count < 0) {
+ IL_ERR("Error can not send more than %d chunks\n",
+ NUM_TFD_CHUNKS);
+ return -EINVAL;
+ }
+
+ tfd->tbs[count].addr = cpu_to_le32(addr);
+ tfd->tbs[count].len = cpu_to_le32(len);
+
+ count++;
+
+ tfd->control_flags =
+ cpu_to_le32(TFD_CTL_COUNT_SET(count) | TFD_CTL_PAD_SET(pad));
+
+ return 0;
+}
+
+/**
+ * il3945_hw_txq_free_tfd - Free one TFD, those at idx [txq->q.read_ptr]
+ *
+ * Does NOT advance any idxes
+ */
+void
+il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
+{
+ struct il3945_tfd *tfd_tmp = (struct il3945_tfd *)txq->tfds;
+ int idx = txq->q.read_ptr;
+ struct il3945_tfd *tfd = &tfd_tmp[idx];
+ struct pci_dev *dev = il->pci_dev;
+ int i;
+ int counter;
+
+ /* sanity check */
+ counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
+ if (counter > NUM_TFD_CHUNKS) {
+ IL_ERR("Too many chunks: %i\n", counter);
+ /* @todo issue fatal error, it is quite serious situation */
+ return;
+ }
+
+ /* Unmap tx_cmd */
+ if (counter)
+ pci_unmap_single(dev, dma_unmap_addr(&txq->meta[idx], mapping),
+ dma_unmap_len(&txq->meta[idx], len),
+ PCI_DMA_TODEVICE);
+
+ /* unmap chunks if any */
+
+ for (i = 1; i < counter; i++)
+ pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
+ le32_to_cpu(tfd->tbs[i].len),
+ PCI_DMA_TODEVICE);
+
+ /* free SKB */
+ if (txq->txb) {
+ struct sk_buff *skb;
+
+ skb = txq->txb[txq->q.read_ptr].skb;
+
+ /* can be called from irqs-disabled context */
+ if (skb) {
+ dev_kfree_skb_any(skb);
+ txq->txb[txq->q.read_ptr].skb = NULL;
+ }
+ }
+}
+
+/**
+ * il3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
+ *
+*/
+void
+il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_hdr *hdr, int sta_id, int tx_id)
+{
+ u16 hw_value = ieee80211_get_tx_rate(il->hw, info)->hw_value;
+ u16 rate_idx = min(hw_value & 0xffff, RATE_COUNT_3945);
+ u16 rate_mask;
+ int rate;
+ u8 rts_retry_limit;
+ u8 data_retry_limit;
+ __le32 tx_flags;
+ __le16 fc = hdr->frame_control;
+ struct il3945_tx_cmd *tx_cmd = (struct il3945_tx_cmd *)cmd->cmd.payload;
+
+ rate = il3945_rates[rate_idx].plcp;
+ tx_flags = tx_cmd->tx_flags;
+
+ /* We need to figure out how to get the sta->supp_rates while
+ * in this running context */
+ rate_mask = RATES_MASK_3945;
+
+ /* Set retry limit on DATA packets and Probe Responses */
+ if (ieee80211_is_probe_resp(fc))
+ data_retry_limit = 3;
+ else
+ data_retry_limit = IL_DEFAULT_TX_RETRY;
+ tx_cmd->data_retry_limit = data_retry_limit;
+
+ if (tx_id >= IL39_CMD_QUEUE_NUM)
+ rts_retry_limit = 3;
+ else
+ rts_retry_limit = 7;
+
+ if (data_retry_limit < rts_retry_limit)
+ rts_retry_limit = data_retry_limit;
+ tx_cmd->rts_retry_limit = rts_retry_limit;
+
+ tx_cmd->rate = rate;
+ tx_cmd->tx_flags = tx_flags;
+
+ /* OFDM */
+ tx_cmd->supp_rates[0] =
+ ((rate_mask & IL_OFDM_RATES_MASK) >> IL_FIRST_OFDM_RATE) & 0xFF;
+
+ /* CCK */
+ tx_cmd->supp_rates[1] = (rate_mask & 0xF);
+
+ D_RATE("Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
+ "cck/ofdm mask: 0x%x/0x%x\n", sta_id, tx_cmd->rate,
+ le32_to_cpu(tx_cmd->tx_flags), tx_cmd->supp_rates[1],
+ tx_cmd->supp_rates[0]);
+}
+
+static u8
+il3945_sync_sta(struct il_priv *il, int sta_id, u16 tx_rate)
+{
+ unsigned long flags_spin;
+ struct il_station_entry *station;
+
+ if (sta_id == IL_INVALID_STATION)
+ return IL_INVALID_STATION;
+
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ station = &il->stations[sta_id];
+
+ station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
+ station->sta.rate_n_flags = cpu_to_le16(tx_rate);
+ station->sta.mode = STA_CONTROL_MODIFY_MSK;
+ il_send_add_sta(il, &station->sta, CMD_ASYNC);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+
+ D_RATE("SCALE sync station %d to rate %d\n", sta_id, tx_rate);
+ return sta_id;
+}
+
+static void
+il3945_set_pwr_vmain(struct il_priv *il)
+{
+/*
+ * (for documentation purposes)
+ * to set power to V_AUX, do
+
+ if (pci_pme_capable(il->pci_dev, PCI_D3cold)) {
+ il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+
+ _il_poll_bit(il, CSR_GPIO_IN,
+ CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
+ CSR_GPIO_IN_BIT_AUX_POWER, 5000);
+ }
+ */
+
+ il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+
+ _il_poll_bit(il, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
+ CSR_GPIO_IN_BIT_AUX_POWER, 5000);
+}
+
+static int
+il3945_rx_init(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ il_wr(il, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
+ il_wr(il, FH39_RCSR_RPTR_ADDR(0), rxq->rb_stts_dma);
+ il_wr(il, FH39_RCSR_WPTR(0), 0);
+ il_wr(il, FH39_RCSR_CONFIG(0),
+ FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
+ FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
+ FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
+ FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 | (RX_QUEUE_SIZE_LOG
+ <<
+ FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE)
+ | FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST | (1 <<
+ FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH)
+ | FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
+
+ /* fake read to flush all prev I/O */
+ il_rd(il, FH39_RSSR_CTRL);
+
+ return 0;
+}
+
+static int
+il3945_tx_reset(struct il_priv *il)
+{
+
+ /* bypass mode */
+ il_wr_prph(il, ALM_SCD_MODE_REG, 0x2);
+
+ /* RA 0 is active */
+ il_wr_prph(il, ALM_SCD_ARASTAT_REG, 0x01);
+
+ /* all 6 fifo are active */
+ il_wr_prph(il, ALM_SCD_TXFACT_REG, 0x3f);
+
+ il_wr_prph(il, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
+ il_wr_prph(il, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
+ il_wr_prph(il, ALM_SCD_TXF4MF_REG, 0x000004);
+ il_wr_prph(il, ALM_SCD_TXF5MF_REG, 0x000005);
+
+ il_wr(il, FH39_TSSR_CBB_BASE, il->_3945.shared_phys);
+
+ il_wr(il, FH39_TSSR_MSG_CONFIG,
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
+ FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
+
+ return 0;
+}
+
+/**
+ * il3945_txq_ctx_reset - Reset TX queue context
+ *
+ * Destroys all DMA structures and initialize them again
+ */
+static int
+il3945_txq_ctx_reset(struct il_priv *il)
+{
+ int rc;
+ int txq_id, slots_num;
+
+ il3945_hw_txq_ctx_free(il);
+
+ /* allocate tx queue structure */
+ rc = il_alloc_txq_mem(il);
+ if (rc)
+ return rc;
+
+ /* Tx CMD queue */
+ rc = il3945_tx_reset(il);
+ if (rc)
+ goto error;
+
+ /* Tx queue(s) */
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
+ slots_num =
+ (txq_id ==
+ IL39_CMD_QUEUE_NUM) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ rc = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id);
+ if (rc) {
+ IL_ERR("Tx %d queue init failed\n", txq_id);
+ goto error;
+ }
+ }
+
+ return rc;
+
+error:
+ il3945_hw_txq_ctx_free(il);
+ return rc;
+}
+
+/*
+ * Start up 3945's basic functionality after it has been reset
+ * (e.g. after platform boot, or shutdown via il_apm_stop())
+ * NOTE: This does not load uCode nor start the embedded processor
+ */
+static int
+il3945_apm_init(struct il_priv *il)
+{
+ int ret = il_apm_init(il);
+
+ /* Clear APMG (NIC's internal power management) interrupts */
+ il_wr_prph(il, APMG_RTC_INT_MSK_REG, 0x0);
+ il_wr_prph(il, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
+
+ /* Reset radio chip */
+ il_set_bits_prph(il, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
+ udelay(5);
+ il_clear_bits_prph(il, APMG_PS_CTRL_REG, APMG_PS_CTRL_VAL_RESET_REQ);
+
+ return ret;
+}
+
+static void
+il3945_nic_config(struct il_priv *il)
+{
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ unsigned long flags;
+ u8 rev_id = il->pci_dev->revision;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Determine HW type */
+ D_INFO("HW Revision ID = 0x%X\n", rev_id);
+
+ if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
+ D_INFO("RTP type\n");
+ else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
+ D_INFO("3945 RADIO-MB type\n");
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
+ } else {
+ D_INFO("3945 RADIO-MM type\n");
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
+ }
+
+ if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
+ D_INFO("SKU OP mode is mrc\n");
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
+ } else
+ D_INFO("SKU OP mode is basic\n");
+
+ if ((eeprom->board_revision & 0xF0) == 0xD0) {
+ D_INFO("3945ABG revision is 0x%X\n", eeprom->board_revision);
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
+ } else {
+ D_INFO("3945ABG revision is 0x%X\n", eeprom->board_revision);
+ il_clear_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
+ }
+
+ if (eeprom->almgor_m_version <= 1) {
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
+ D_INFO("Card M type A version is 0x%X\n",
+ eeprom->almgor_m_version);
+ } else {
+ D_INFO("Card M type B version is 0x%X\n",
+ eeprom->almgor_m_version);
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
+ }
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
+ D_RF_KILL("SW RF KILL supported in EEPROM.\n");
+
+ if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
+ D_RF_KILL("HW RF KILL supported in EEPROM.\n");
+}
+
+int
+il3945_hw_nic_init(struct il_priv *il)
+{
+ int rc;
+ unsigned long flags;
+ struct il_rx_queue *rxq = &il->rxq;
+
+ spin_lock_irqsave(&il->lock, flags);
+ il->cfg->ops->lib->apm_ops.init(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ il3945_set_pwr_vmain(il);
+
+ il->cfg->ops->lib->apm_ops.config(il);
+
+ /* Allocate the RX queue, or reset if it is already allocated */
+ if (!rxq->bd) {
+ rc = il_rx_queue_alloc(il);
+ if (rc) {
+ IL_ERR("Unable to initialize Rx queue\n");
+ return -ENOMEM;
+ }
+ } else
+ il3945_rx_queue_reset(il, rxq);
+
+ il3945_rx_replenish(il);
+
+ il3945_rx_init(il, rxq);
+
+ /* Look at using this instead:
+ rxq->need_update = 1;
+ il_rx_queue_update_write_ptr(il, rxq);
+ */
+
+ il_wr(il, FH39_RCSR_WPTR(0), rxq->write & ~7);
+
+ rc = il3945_txq_ctx_reset(il);
+ if (rc)
+ return rc;
+
+ set_bit(S_INIT, &il->status);
+
+ return 0;
+}
+
+/**
+ * il3945_hw_txq_ctx_free - Free TXQ Context
+ *
+ * Destroy all TX DMA queues and structures
+ */
+void
+il3945_hw_txq_ctx_free(struct il_priv *il)
+{
+ int txq_id;
+
+ /* Tx queues */
+ if (il->txq)
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++)
+ if (txq_id == IL39_CMD_QUEUE_NUM)
+ il_cmd_queue_free(il);
+ else
+ il_tx_queue_free(il, txq_id);
+
+ /* free tx queue structure */
+ il_txq_mem(il);
+}
+
+void
+il3945_hw_txq_ctx_stop(struct il_priv *il)
+{
+ int txq_id;
+
+ /* stop SCD */
+ il_wr_prph(il, ALM_SCD_MODE_REG, 0);
+ il_wr_prph(il, ALM_SCD_TXFACT_REG, 0);
+
+ /* reset TFD queues */
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
+ il_wr(il, FH39_TCSR_CONFIG(txq_id), 0x0);
+ il_poll_bit(il, FH39_TSSR_TX_STATUS,
+ FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
+ 1000);
+ }
+
+ il3945_hw_txq_ctx_free(il);
+}
+
+/**
+ * il3945_hw_reg_adjust_power_by_temp
+ * return idx delta into power gain settings table
+*/
+static int
+il3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
+{
+ return (new_reading - old_reading) * (-11) / 100;
+}
+
+/**
+ * il3945_hw_reg_temp_out_of_range - Keep temperature in sane range
+ */
+static inline int
+il3945_hw_reg_temp_out_of_range(int temperature)
+{
+ return (temperature < -260 || temperature > 25) ? 1 : 0;
+}
+
+int
+il3945_hw_get_temperature(struct il_priv *il)
+{
+ return _il_rd(il, CSR_UCODE_DRV_GP2);
+}
+
+/**
+ * il3945_hw_reg_txpower_get_temperature
+ * get the current temperature by reading from NIC
+*/
+static int
+il3945_hw_reg_txpower_get_temperature(struct il_priv *il)
+{
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ int temperature;
+
+ temperature = il3945_hw_get_temperature(il);
+
+ /* driver's okay range is -260 to +25.
+ * human readable okay range is 0 to +285 */
+ D_INFO("Temperature: %d\n", temperature + IL_TEMP_CONVERT);
+
+ /* handle insane temp reading */
+ if (il3945_hw_reg_temp_out_of_range(temperature)) {
+ IL_ERR("Error bad temperature value %d\n", temperature);
+
+ /* if really really hot(?),
+ * substitute the 3rd band/group's temp measured at factory */
+ if (il->last_temperature > 100)
+ temperature = eeprom->groups[2].temperature;
+ else /* else use most recent "sane" value from driver */
+ temperature = il->last_temperature;
+ }
+
+ return temperature; /* raw, not "human readable" */
+}
+
+/* Adjust Txpower only if temperature variance is greater than threshold.
+ *
+ * Both are lower than older versions' 9 degrees */
+#define IL_TEMPERATURE_LIMIT_TIMER 6
+
+/**
+ * il3945_is_temp_calib_needed - determines if new calibration is needed
+ *
+ * records new temperature in tx_mgr->temperature.
+ * replaces tx_mgr->last_temperature *only* if calib needed
+ * (assumes caller will actually do the calibration!). */
+static int
+il3945_is_temp_calib_needed(struct il_priv *il)
+{
+ int temp_diff;
+
+ il->temperature = il3945_hw_reg_txpower_get_temperature(il);
+ temp_diff = il->temperature - il->last_temperature;
+
+ /* get absolute value */
+ if (temp_diff < 0) {
+ D_POWER("Getting cooler, delta %d,\n", temp_diff);
+ temp_diff = -temp_diff;
+ } else if (temp_diff == 0)
+ D_POWER("Same temp,\n");
+ else
+ D_POWER("Getting warmer, delta %d,\n", temp_diff);
+
+ /* if we don't need calibration, *don't* update last_temperature */
+ if (temp_diff < IL_TEMPERATURE_LIMIT_TIMER) {
+ D_POWER("Timed thermal calib not needed\n");
+ return 0;
+ }
+
+ D_POWER("Timed thermal calib needed\n");
+
+ /* assume that caller will actually do calib ...
+ * update the "last temperature" value */
+ il->last_temperature = il->temperature;
+ return 1;
+}
+
+#define IL_MAX_GAIN_ENTRIES 78
+#define IL_CCK_FROM_OFDM_POWER_DIFF -5
+#define IL_CCK_FROM_OFDM_IDX_DIFF (10)
+
+/* radio and DSP power table, each step is 1/2 dB.
+ * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
+static struct il3945_tx_power power_gain_table[2][IL_MAX_GAIN_ENTRIES] = {
+ {
+ {251, 127}, /* 2.4 GHz, highest power */
+ {251, 127},
+ {251, 127},
+ {251, 127},
+ {251, 125},
+ {251, 110},
+ {251, 105},
+ {251, 98},
+ {187, 125},
+ {187, 115},
+ {187, 108},
+ {187, 99},
+ {243, 119},
+ {243, 111},
+ {243, 105},
+ {243, 97},
+ {243, 92},
+ {211, 106},
+ {211, 100},
+ {179, 120},
+ {179, 113},
+ {179, 107},
+ {147, 125},
+ {147, 119},
+ {147, 112},
+ {147, 106},
+ {147, 101},
+ {147, 97},
+ {147, 91},
+ {115, 107},
+ {235, 121},
+ {235, 115},
+ {235, 109},
+ {203, 127},
+ {203, 121},
+ {203, 115},
+ {203, 108},
+ {203, 102},
+ {203, 96},
+ {203, 92},
+ {171, 110},
+ {171, 104},
+ {171, 98},
+ {139, 116},
+ {227, 125},
+ {227, 119},
+ {227, 113},
+ {227, 107},
+ {227, 101},
+ {227, 96},
+ {195, 113},
+ {195, 106},
+ {195, 102},
+ {195, 95},
+ {163, 113},
+ {163, 106},
+ {163, 102},
+ {163, 95},
+ {131, 113},
+ {131, 106},
+ {131, 102},
+ {131, 95},
+ {99, 113},
+ {99, 106},
+ {99, 102},
+ {99, 95},
+ {67, 113},
+ {67, 106},
+ {67, 102},
+ {67, 95},
+ {35, 113},
+ {35, 106},
+ {35, 102},
+ {35, 95},
+ {3, 113},
+ {3, 106},
+ {3, 102},
+ {3, 95} /* 2.4 GHz, lowest power */
+ },
+ {
+ {251, 127}, /* 5.x GHz, highest power */
+ {251, 120},
+ {251, 114},
+ {219, 119},
+ {219, 101},
+ {187, 113},
+ {187, 102},
+ {155, 114},
+ {155, 103},
+ {123, 117},
+ {123, 107},
+ {123, 99},
+ {123, 92},
+ {91, 108},
+ {59, 125},
+ {59, 118},
+ {59, 109},
+ {59, 102},
+ {59, 96},
+ {59, 90},
+ {27, 104},
+ {27, 98},
+ {27, 92},
+ {115, 118},
+ {115, 111},
+ {115, 104},
+ {83, 126},
+ {83, 121},
+ {83, 113},
+ {83, 105},
+ {83, 99},
+ {51, 118},
+ {51, 111},
+ {51, 104},
+ {51, 98},
+ {19, 116},
+ {19, 109},
+ {19, 102},
+ {19, 98},
+ {19, 93},
+ {171, 113},
+ {171, 107},
+ {171, 99},
+ {139, 120},
+ {139, 113},
+ {139, 107},
+ {139, 99},
+ {107, 120},
+ {107, 113},
+ {107, 107},
+ {107, 99},
+ {75, 120},
+ {75, 113},
+ {75, 107},
+ {75, 99},
+ {43, 120},
+ {43, 113},
+ {43, 107},
+ {43, 99},
+ {11, 120},
+ {11, 113},
+ {11, 107},
+ {11, 99},
+ {131, 107},
+ {131, 99},
+ {99, 120},
+ {99, 113},
+ {99, 107},
+ {99, 99},
+ {67, 120},
+ {67, 113},
+ {67, 107},
+ {67, 99},
+ {35, 120},
+ {35, 113},
+ {35, 107},
+ {35, 99},
+ {3, 120} /* 5.x GHz, lowest power */
+ }
+};
+
+static inline u8
+il3945_hw_reg_fix_power_idx(int idx)
+{
+ if (idx < 0)
+ return 0;
+ if (idx >= IL_MAX_GAIN_ENTRIES)
+ return IL_MAX_GAIN_ENTRIES - 1;
+ return (u8) idx;
+}
+
+/* Kick off thermal recalibration check every 60 seconds */
+#define REG_RECALIB_PERIOD (60)
+
+/**
+ * il3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
+ *
+ * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
+ * or 6 Mbit (OFDM) rates.
+ */
+static void
+il3945_hw_reg_set_scan_power(struct il_priv *il, u32 scan_tbl_idx, s32 rate_idx,
+ const s8 *clip_pwrs,
+ struct il_channel_info *ch_info, int band_idx)
+{
+ struct il3945_scan_power_info *scan_power_info;
+ s8 power;
+ u8 power_idx;
+
+ scan_power_info = &ch_info->scan_pwr_info[scan_tbl_idx];
+
+ /* use this channel group's 6Mbit clipping/saturation pwr,
+ * but cap at regulatory scan power restriction (set during init
+ * based on eeprom channel data) for this channel. */
+ power = min(ch_info->scan_power, clip_pwrs[RATE_6M_IDX_TBL]);
+
+ power = min(power, il->tx_power_user_lmt);
+ scan_power_info->requested_power = power;
+
+ /* find difference between new scan *power* and current "normal"
+ * Tx *power* for 6Mb. Use this difference (x2) to adjust the
+ * current "normal" temperature-compensated Tx power *idx* for
+ * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
+ * *idx*. */
+ power_idx =
+ ch_info->power_info[rate_idx].power_table_idx - (power -
+ ch_info->
+ power_info
+ [RATE_6M_IDX_TBL].
+ requested_power) *
+ 2;
+
+ /* store reference idx that we use when adjusting *all* scan
+ * powers. So we can accommodate user (all channel) or spectrum
+ * management (single channel) power changes "between" temperature
+ * feedback compensation procedures.
+ * don't force fit this reference idx into gain table; it may be a
+ * negative number. This will help avoid errors when we're at
+ * the lower bounds (highest gains, for warmest temperatures)
+ * of the table. */
+
+ /* don't exceed table bounds for "real" setting */
+ power_idx = il3945_hw_reg_fix_power_idx(power_idx);
+
+ scan_power_info->power_table_idx = power_idx;
+ scan_power_info->tpc.tx_gain =
+ power_gain_table[band_idx][power_idx].tx_gain;
+ scan_power_info->tpc.dsp_atten =
+ power_gain_table[band_idx][power_idx].dsp_atten;
+}
+
+/**
+ * il3945_send_tx_power - fill in Tx Power command with gain settings
+ *
+ * Configures power settings for all rates for the current channel,
+ * using values from channel info struct, and send to NIC
+ */
+static int
+il3945_send_tx_power(struct il_priv *il)
+{
+ int rate_idx, i;
+ const struct il_channel_info *ch_info = NULL;
+ struct il3945_txpowertable_cmd txpower = {
+ .channel = il->ctx.active.channel,
+ };
+ u16 chan;
+
+ if (WARN_ONCE
+ (test_bit(S_SCAN_HW, &il->status),
+ "TX Power requested while scanning!\n"))
+ return -EAGAIN;
+
+ chan = le16_to_cpu(il->ctx.active.channel);
+
+ txpower.band = (il->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
+ ch_info = il_get_channel_info(il, il->band, chan);
+ if (!ch_info) {
+ IL_ERR("Failed to get channel info for channel %d [%d]\n", chan,
+ il->band);
+ return -EINVAL;
+ }
+
+ if (!il_is_channel_valid(ch_info)) {
+ D_POWER("Not calling TX_PWR_TBL_CMD on " "non-Tx channel.\n");
+ return 0;
+ }
+
+ /* fill cmd with power settings for all rates for current channel */
+ /* Fill OFDM rate */
+ for (rate_idx = IL_FIRST_OFDM_RATE, i = 0;
+ rate_idx <= IL39_LAST_OFDM_RATE; rate_idx++, i++) {
+
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = il3945_rates[rate_idx].plcp;
+
+ D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
+ le16_to_cpu(txpower.channel), txpower.band,
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten, txpower.power[i].rate);
+ }
+ /* Fill CCK rates */
+ for (rate_idx = IL_FIRST_CCK_RATE; rate_idx <= IL_LAST_CCK_RATE;
+ rate_idx++, i++) {
+ txpower.power[i].tpc = ch_info->power_info[i].tpc;
+ txpower.power[i].rate = il3945_rates[rate_idx].plcp;
+
+ D_POWER("ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
+ le16_to_cpu(txpower.channel), txpower.band,
+ txpower.power[i].tpc.tx_gain,
+ txpower.power[i].tpc.dsp_atten, txpower.power[i].rate);
+ }
+
+ return il_send_cmd_pdu(il, C_TX_PWR_TBL,
+ sizeof(struct il3945_txpowertable_cmd),
+ &txpower);
+
+}
+
+/**
+ * il3945_hw_reg_set_new_power - Configures power tables at new levels
+ * @ch_info: Channel to update. Uses power_info.requested_power.
+ *
+ * Replace requested_power and base_power_idx ch_info fields for
+ * one channel.
+ *
+ * Called if user or spectrum management changes power preferences.
+ * Takes into account h/w and modulation limitations (clip power).
+ *
+ * This does *not* send anything to NIC, just sets up ch_info for one channel.
+ *
+ * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
+ * properly fill out the scan powers, and actual h/w gain settings,
+ * and send changes to NIC
+ */
+static int
+il3945_hw_reg_set_new_power(struct il_priv *il, struct il_channel_info *ch_info)
+{
+ struct il3945_channel_power_info *power_info;
+ int power_changed = 0;
+ int i;
+ const s8 *clip_pwrs;
+ int power;
+
+ /* Get this chnlgrp's rate-to-max/clip-powers table */
+ clip_pwrs = il->_3945.clip_groups[ch_info->group_idx].clip_powers;
+
+ /* Get this channel's rate-to-current-power settings table */
+ power_info = ch_info->power_info;
+
+ /* update OFDM Txpower settings */
+ for (i = RATE_6M_IDX_TBL; i <= RATE_54M_IDX_TBL; i++, ++power_info) {
+ int delta_idx;
+
+ /* limit new power to be no more than h/w capability */
+ power = min(ch_info->curr_txpow, clip_pwrs[i]);
+ if (power == power_info->requested_power)
+ continue;
+
+ /* find difference between old and new requested powers,
+ * update base (non-temp-compensated) power idx */
+ delta_idx = (power - power_info->requested_power) * 2;
+ power_info->base_power_idx -= delta_idx;
+
+ /* save new requested power value */
+ power_info->requested_power = power;
+
+ power_changed = 1;
+ }
+
+ /* update CCK Txpower settings, based on OFDM 12M setting ...
+ * ... all CCK power settings for a given channel are the *same*. */
+ if (power_changed) {
+ power =
+ ch_info->power_info[RATE_12M_IDX_TBL].requested_power +
+ IL_CCK_FROM_OFDM_POWER_DIFF;
+
+ /* do all CCK rates' il3945_channel_power_info structures */
+ for (i = RATE_1M_IDX_TBL; i <= RATE_11M_IDX_TBL; i++) {
+ power_info->requested_power = power;
+ power_info->base_power_idx =
+ ch_info->power_info[RATE_12M_IDX_TBL].
+ base_power_idx + IL_CCK_FROM_OFDM_IDX_DIFF;
+ ++power_info;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * il3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
+ *
+ * NOTE: Returned power limit may be less (but not more) than requested,
+ * based strictly on regulatory (eeprom and spectrum mgt) limitations
+ * (no consideration for h/w clipping limitations).
+ */
+static int
+il3945_hw_reg_get_ch_txpower_limit(struct il_channel_info *ch_info)
+{
+ s8 max_power;
+
+#if 0
+ /* if we're using TGd limits, use lower of TGd or EEPROM */
+ if (ch_info->tgd_data.max_power != 0)
+ max_power =
+ min(ch_info->tgd_data.max_power,
+ ch_info->eeprom.max_power_avg);
+
+ /* else just use EEPROM limits */
+ else
+#endif
+ max_power = ch_info->eeprom.max_power_avg;
+
+ return min(max_power, ch_info->max_power_avg);
+}
+
+/**
+ * il3945_hw_reg_comp_txpower_temp - Compensate for temperature
+ *
+ * Compensate txpower settings of *all* channels for temperature.
+ * This only accounts for the difference between current temperature
+ * and the factory calibration temperatures, and bases the new settings
+ * on the channel's base_power_idx.
+ *
+ * If RxOn is "associated", this sends the new Txpower to NIC!
+ */
+static int
+il3945_hw_reg_comp_txpower_temp(struct il_priv *il)
+{
+ struct il_channel_info *ch_info = NULL;
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ int delta_idx;
+ const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
+ u8 a_band;
+ u8 rate_idx;
+ u8 scan_tbl_idx;
+ u8 i;
+ int ref_temp;
+ int temperature = il->temperature;
+
+ if (il->disable_tx_power_cal || test_bit(S_SCANNING, &il->status)) {
+ /* do not perform tx power calibration */
+ return 0;
+ }
+ /* set up new Tx power info for each and every channel, 2.4 and 5.x */
+ for (i = 0; i < il->channel_count; i++) {
+ ch_info = &il->channel_info[i];
+ a_band = il_is_channel_a_band(ch_info);
+
+ /* Get this chnlgrp's factory calibration temperature */
+ ref_temp = (s16) eeprom->groups[ch_info->group_idx].temperature;
+
+ /* get power idx adjustment based on current and factory
+ * temps */
+ delta_idx =
+ il3945_hw_reg_adjust_power_by_temp(temperature, ref_temp);
+
+ /* set tx power value for all rates, OFDM and CCK */
+ for (rate_idx = 0; rate_idx < RATE_COUNT_3945; rate_idx++) {
+ int power_idx =
+ ch_info->power_info[rate_idx].base_power_idx;
+
+ /* temperature compensate */
+ power_idx += delta_idx;
+
+ /* stay within table range */
+ power_idx = il3945_hw_reg_fix_power_idx(power_idx);
+ ch_info->power_info[rate_idx].power_table_idx =
+ (u8) power_idx;
+ ch_info->power_info[rate_idx].tpc =
+ power_gain_table[a_band][power_idx];
+ }
+
+ /* Get this chnlgrp's rate-to-max/clip-powers table */
+ clip_pwrs =
+ il->_3945.clip_groups[ch_info->group_idx].clip_powers;
+
+ /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
+ for (scan_tbl_idx = 0; scan_tbl_idx < IL_NUM_SCAN_RATES;
+ scan_tbl_idx++) {
+ s32 actual_idx =
+ (scan_tbl_idx ==
+ 0) ? RATE_1M_IDX_TBL : RATE_6M_IDX_TBL;
+ il3945_hw_reg_set_scan_power(il, scan_tbl_idx,
+ actual_idx, clip_pwrs,
+ ch_info, a_band);
+ }
+ }
+
+ /* send Txpower command for current channel to ucode */
+ return il->cfg->ops->lib->send_tx_power(il);
+}
+
+int
+il3945_hw_reg_set_txpower(struct il_priv *il, s8 power)
+{
+ struct il_channel_info *ch_info;
+ s8 max_power;
+ u8 a_band;
+ u8 i;
+
+ if (il->tx_power_user_lmt == power) {
+ D_POWER("Requested Tx power same as current " "limit: %ddBm.\n",
+ power);
+ return 0;
+ }
+
+ D_POWER("Setting upper limit clamp to %ddBm.\n", power);
+ il->tx_power_user_lmt = power;
+
+ /* set up new Tx powers for each and every channel, 2.4 and 5.x */
+
+ for (i = 0; i < il->channel_count; i++) {
+ ch_info = &il->channel_info[i];
+ a_band = il_is_channel_a_band(ch_info);
+
+ /* find minimum power of all user and regulatory constraints
+ * (does not consider h/w clipping limitations) */
+ max_power = il3945_hw_reg_get_ch_txpower_limit(ch_info);
+ max_power = min(power, max_power);
+ if (max_power != ch_info->curr_txpow) {
+ ch_info->curr_txpow = max_power;
+
+ /* this considers the h/w clipping limitations */
+ il3945_hw_reg_set_new_power(il, ch_info);
+ }
+ }
+
+ /* update txpower settings for all channels,
+ * send to NIC if associated. */
+ il3945_is_temp_calib_needed(il);
+ il3945_hw_reg_comp_txpower_temp(il);
+
+ return 0;
+}
+
+static int
+il3945_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ int rc = 0;
+ struct il_rx_pkt *pkt;
+ struct il3945_rxon_assoc_cmd rxon_assoc;
+ struct il_host_cmd cmd = {
+ .id = C_RXON_ASSOC,
+ .len = sizeof(rxon_assoc),
+ .flags = CMD_WANT_SKB,
+ .data = &rxon_assoc,
+ };
+ const struct il_rxon_cmd *rxon1 = &ctx->staging;
+ const struct il_rxon_cmd *rxon2 = &ctx->active;
+
+ if (rxon1->flags == rxon2->flags &&
+ rxon1->filter_flags == rxon2->filter_flags &&
+ rxon1->cck_basic_rates == rxon2->cck_basic_rates &&
+ rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) {
+ D_INFO("Using current RXON_ASSOC. Not resending.\n");
+ return 0;
+ }
+
+ rxon_assoc.flags = ctx->staging.flags;
+ rxon_assoc.filter_flags = ctx->staging.filter_flags;
+ rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
+ rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
+ rxon_assoc.reserved = 0;
+
+ rc = il_send_cmd_sync(il, &cmd);
+ if (rc)
+ return rc;
+
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from C_RXON_ASSOC command\n");
+ rc = -EIO;
+ }
+
+ il_free_pages(il, cmd.reply_page);
+
+ return rc;
+}
+
+/**
+ * il3945_commit_rxon - commit staging_rxon to hardware
+ *
+ * The RXON command in staging_rxon is committed to the hardware and
+ * the active_rxon structure is updated with the new data. This
+ * function correctly transitions out of the RXON_ASSOC_MSK state if
+ * a HW tune is required based on the RXON structure changes.
+ */
+int
+il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ /* cast away the const for active_rxon in this function */
+ struct il3945_rxon_cmd *active_rxon = (void *)&ctx->active;
+ struct il3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
+ int rc = 0;
+ bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return -EINVAL;
+
+ if (!il_is_alive(il))
+ return -1;
+
+ /* always get timestamp with Rx frame */
+ staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
+
+ /* select antenna */
+ staging_rxon->flags &= ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
+ staging_rxon->flags |= il3945_get_antenna_flags(il);
+
+ rc = il_check_rxon_cmd(il, ctx);
+ if (rc) {
+ IL_ERR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * il3945_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!il_full_rxon_required(il, &il->ctx)) {
+ rc = il_send_rxon_assoc(il, &il->ctx);
+ if (rc) {
+ IL_ERR("Error setting RXON_ASSOC "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+
+ memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
+ /*
+ * We do not commit tx power settings while channel changing,
+ * do it now if tx power changed.
+ */
+ il_set_tx_power(il, il->tx_power_next, false);
+ return 0;
+ }
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (il_is_associated(il) && new_assoc) {
+ D_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ /*
+ * reserved4 and 5 could have been filled by the iwlcore code.
+ * Let's clear them before pushing to the 3945.
+ */
+ active_rxon->reserved4 = 0;
+ active_rxon->reserved5 = 0;
+ rc = il_send_cmd_pdu(il, C_RXON, sizeof(struct il3945_rxon_cmd),
+ &il->ctx.active);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (rc) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IL_ERR("Error clearing ASSOC_MSK on current "
+ "configuration (%d).\n", rc);
+ return rc;
+ }
+ il_clear_ucode_stations(il, &il->ctx);
+ il_restore_stations(il, &il->ctx);
+ }
+
+ D_INFO("Sending RXON\n" "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n" "* bssid = %pM\n", (new_assoc ? "" : "out"),
+ le16_to_cpu(staging_rxon->channel), staging_rxon->bssid_addr);
+
+ /*
+ * reserved4 and 5 could have been filled by the iwlcore code.
+ * Let's clear them before pushing to the 3945.
+ */
+ staging_rxon->reserved4 = 0;
+ staging_rxon->reserved5 = 0;
+
+ il_set_rxon_hwcrypto(il, ctx, !il3945_mod_params.sw_crypto);
+
+ /* Apply the new configuration */
+ rc = il_send_cmd_pdu(il, C_RXON, sizeof(struct il3945_rxon_cmd),
+ staging_rxon);
+ if (rc) {
+ IL_ERR("Error setting new configuration (%d).\n", rc);
+ return rc;
+ }
+
+ memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
+
+ if (!new_assoc) {
+ il_clear_ucode_stations(il, &il->ctx);
+ il_restore_stations(il, &il->ctx);
+ }
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ rc = il_set_tx_power(il, il->tx_power_next, true);
+ if (rc) {
+ IL_ERR("Error setting Tx power (%d).\n", rc);
+ return rc;
+ }
+
+ /* Init the hardware's rate fallback order based on the band */
+ rc = il3945_init_hw_rate_table(il);
+ if (rc) {
+ IL_ERR("Error setting HW rate table: %02X\n", rc);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * il3945_reg_txpower_periodic - called when time to check our temperature.
+ *
+ * -- reset periodic timer
+ * -- see if temp has changed enough to warrant re-calibration ... if so:
+ * -- correct coeffs for temp (can reset temp timer)
+ * -- save this temp as "last",
+ * -- send new set of gain settings to NIC
+ * NOTE: This should continue working, even when we're not associated,
+ * so we can keep our internal table of scan powers current. */
+void
+il3945_reg_txpower_periodic(struct il_priv *il)
+{
+ /* This will kick in the "brute force"
+ * il3945_hw_reg_comp_txpower_temp() below */
+ if (!il3945_is_temp_calib_needed(il))
+ goto reschedule;
+
+ /* Set up a new set of temp-adjusted TxPowers, send to NIC.
+ * This is based *only* on current temperature,
+ * ignoring any previous power measurements */
+ il3945_hw_reg_comp_txpower_temp(il);
+
+reschedule:
+ queue_delayed_work(il->workqueue, &il->_3945.thermal_periodic,
+ REG_RECALIB_PERIOD * HZ);
+}
+
+static void
+il3945_bg_reg_txpower_periodic(struct work_struct *work)
+{
+ struct il_priv *il = container_of(work, struct il_priv,
+ _3945.thermal_periodic.work);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ mutex_lock(&il->mutex);
+ il3945_reg_txpower_periodic(il);
+ mutex_unlock(&il->mutex);
+}
+
+/**
+ * il3945_hw_reg_get_ch_grp_idx - find the channel-group idx (0-4) for channel.
+ *
+ * This function is used when initializing channel-info structs.
+ *
+ * NOTE: These channel groups do *NOT* match the bands above!
+ * These channel groups are based on factory-tested channels;
+ * on A-band, EEPROM's "group frequency" entries represent the top
+ * channel in each group 1-4. Group 5 All B/G channels are in group 0.
+ */
+static u16
+il3945_hw_reg_get_ch_grp_idx(struct il_priv *il,
+ const struct il_channel_info *ch_info)
+{
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ struct il3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
+ u8 group;
+ u16 group_idx = 0; /* based on factory calib frequencies */
+ u8 grp_channel;
+
+ /* Find the group idx for the channel ... don't use idx 1(?) */
+ if (il_is_channel_a_band(ch_info)) {
+ for (group = 1; group < 5; group++) {
+ grp_channel = ch_grp[group].group_channel;
+ if (ch_info->channel <= grp_channel) {
+ group_idx = group;
+ break;
+ }
+ }
+ /* group 4 has a few channels *above* its factory cal freq */
+ if (group == 5)
+ group_idx = 4;
+ } else
+ group_idx = 0; /* 2.4 GHz, group 0 */
+
+ D_POWER("Chnl %d mapped to grp %d\n", ch_info->channel, group_idx);
+ return group_idx;
+}
+
+/**
+ * il3945_hw_reg_get_matched_power_idx - Interpolate to get nominal idx
+ *
+ * Interpolate to get nominal (i.e. at factory calibration temperature) idx
+ * into radio/DSP gain settings table for requested power.
+ */
+static int
+il3945_hw_reg_get_matched_power_idx(struct il_priv *il, s8 requested_power,
+ s32 setting_idx, s32 *new_idx)
+{
+ const struct il3945_eeprom_txpower_group *chnl_grp = NULL;
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ s32 idx0, idx1;
+ s32 power = 2 * requested_power;
+ s32 i;
+ const struct il3945_eeprom_txpower_sample *samples;
+ s32 gains0, gains1;
+ s32 res;
+ s32 denominator;
+
+ chnl_grp = &eeprom->groups[setting_idx];
+ samples = chnl_grp->samples;
+ for (i = 0; i < 5; i++) {
+ if (power == samples[i].power) {
+ *new_idx = samples[i].gain_idx;
+ return 0;
+ }
+ }
+
+ if (power > samples[1].power) {
+ idx0 = 0;
+ idx1 = 1;
+ } else if (power > samples[2].power) {
+ idx0 = 1;
+ idx1 = 2;
+ } else if (power > samples[3].power) {
+ idx0 = 2;
+ idx1 = 3;
+ } else {
+ idx0 = 3;
+ idx1 = 4;
+ }
+
+ denominator = (s32) samples[idx1].power - (s32) samples[idx0].power;
+ if (denominator == 0)
+ return -EINVAL;
+ gains0 = (s32) samples[idx0].gain_idx * (1 << 19);
+ gains1 = (s32) samples[idx1].gain_idx * (1 << 19);
+ res =
+ gains0 + (gains1 - gains0) * ((s32) power -
+ (s32) samples[idx0].power) /
+ denominator + (1 << 18);
+ *new_idx = res >> 19;
+ return 0;
+}
+
+static void
+il3945_hw_reg_init_channel_groups(struct il_priv *il)
+{
+ u32 i;
+ s32 rate_idx;
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ const struct il3945_eeprom_txpower_group *group;
+
+ D_POWER("Initializing factory calib info from EEPROM\n");
+
+ for (i = 0; i < IL_NUM_TX_CALIB_GROUPS; i++) {
+ s8 *clip_pwrs; /* table of power levels for each rate */
+ s8 satur_pwr; /* saturation power for each chnl group */
+ group = &eeprom->groups[i];
+
+ /* sanity check on factory saturation power value */
+ if (group->saturation_power < 40) {
+ IL_WARN("Error: saturation power is %d, "
+ "less than minimum expected 40\n",
+ group->saturation_power);
+ return;
+ }
+
+ /*
+ * Derive requested power levels for each rate, based on
+ * hardware capabilities (saturation power for band).
+ * Basic value is 3dB down from saturation, with further
+ * power reductions for highest 3 data rates. These
+ * backoffs provide headroom for high rate modulation
+ * power peaks, without too much distortion (clipping).
+ */
+ /* we'll fill in this array with h/w max power levels */
+ clip_pwrs = (s8 *) il->_3945.clip_groups[i].clip_powers;
+
+ /* divide factory saturation power by 2 to find -3dB level */
+ satur_pwr = (s8) (group->saturation_power >> 1);
+
+ /* fill in channel group's nominal powers for each rate */
+ for (rate_idx = 0; rate_idx < RATE_COUNT_3945;
+ rate_idx++, clip_pwrs++) {
+ switch (rate_idx) {
+ case RATE_36M_IDX_TBL:
+ if (i == 0) /* B/G */
+ *clip_pwrs = satur_pwr;
+ else /* A */
+ *clip_pwrs = satur_pwr - 5;
+ break;
+ case RATE_48M_IDX_TBL:
+ if (i == 0)
+ *clip_pwrs = satur_pwr - 7;
+ else
+ *clip_pwrs = satur_pwr - 10;
+ break;
+ case RATE_54M_IDX_TBL:
+ if (i == 0)
+ *clip_pwrs = satur_pwr - 9;
+ else
+ *clip_pwrs = satur_pwr - 12;
+ break;
+ default:
+ *clip_pwrs = satur_pwr;
+ break;
+ }
+ }
+ }
+}
+
+/**
+ * il3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
+ *
+ * Second pass (during init) to set up il->channel_info
+ *
+ * Set up Tx-power settings in our channel info database for each VALID
+ * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
+ * and current temperature.
+ *
+ * Since this is based on current temperature (at init time), these values may
+ * not be valid for very long, but it gives us a starting/default point,
+ * and allows us to active (i.e. using Tx) scan.
+ *
+ * This does *not* write values to NIC, just sets up our internal table.
+ */
+int
+il3945_txpower_set_from_eeprom(struct il_priv *il)
+{
+ struct il_channel_info *ch_info = NULL;
+ struct il3945_channel_power_info *pwr_info;
+ struct il3945_eeprom *eeprom = (struct il3945_eeprom *)il->eeprom;
+ int delta_idx;
+ u8 rate_idx;
+ u8 scan_tbl_idx;
+ const s8 *clip_pwrs; /* array of power levels for each rate */
+ u8 gain, dsp_atten;
+ s8 power;
+ u8 pwr_idx, base_pwr_idx, a_band;
+ u8 i;
+ int temperature;
+
+ /* save temperature reference,
+ * so we can determine next time to calibrate */
+ temperature = il3945_hw_reg_txpower_get_temperature(il);
+ il->last_temperature = temperature;
+
+ il3945_hw_reg_init_channel_groups(il);
+
+ /* initialize Tx power info for each and every channel, 2.4 and 5.x */
+ for (i = 0, ch_info = il->channel_info; i < il->channel_count;
+ i++, ch_info++) {
+ a_band = il_is_channel_a_band(ch_info);
+ if (!il_is_channel_valid(ch_info))
+ continue;
+
+ /* find this channel's channel group (*not* "band") idx */
+ ch_info->group_idx = il3945_hw_reg_get_ch_grp_idx(il, ch_info);
+
+ /* Get this chnlgrp's rate->max/clip-powers table */
+ clip_pwrs =
+ il->_3945.clip_groups[ch_info->group_idx].clip_powers;
+
+ /* calculate power idx *adjustment* value according to
+ * diff between current temperature and factory temperature */
+ delta_idx =
+ il3945_hw_reg_adjust_power_by_temp(temperature,
+ eeprom->groups[ch_info->
+ group_idx].
+ temperature);
+
+ D_POWER("Delta idx for channel %d: %d [%d]\n", ch_info->channel,
+ delta_idx, temperature + IL_TEMP_CONVERT);
+
+ /* set tx power value for all OFDM rates */
+ for (rate_idx = 0; rate_idx < IL_OFDM_RATES; rate_idx++) {
+ s32 uninitialized_var(power_idx);
+ int rc;
+
+ /* use channel group's clip-power table,
+ * but don't exceed channel's max power */
+ s8 pwr = min(ch_info->max_power_avg,
+ clip_pwrs[rate_idx]);
+
+ pwr_info = &ch_info->power_info[rate_idx];
+
+ /* get base (i.e. at factory-measured temperature)
+ * power table idx for this rate's power */
+ rc = il3945_hw_reg_get_matched_power_idx(il, pwr,
+ ch_info->
+ group_idx,
+ &power_idx);
+ if (rc) {
+ IL_ERR("Invalid power idx\n");
+ return rc;
+ }
+ pwr_info->base_power_idx = (u8) power_idx;
+
+ /* temperature compensate */
+ power_idx += delta_idx;
+
+ /* stay within range of gain table */
+ power_idx = il3945_hw_reg_fix_power_idx(power_idx);
+
+ /* fill 1 OFDM rate's il3945_channel_power_info struct */
+ pwr_info->requested_power = pwr;
+ pwr_info->power_table_idx = (u8) power_idx;
+ pwr_info->tpc.tx_gain =
+ power_gain_table[a_band][power_idx].tx_gain;
+ pwr_info->tpc.dsp_atten =
+ power_gain_table[a_band][power_idx].dsp_atten;
+ }
+
+ /* set tx power for CCK rates, based on OFDM 12 Mbit settings */
+ pwr_info = &ch_info->power_info[RATE_12M_IDX_TBL];
+ power = pwr_info->requested_power + IL_CCK_FROM_OFDM_POWER_DIFF;
+ pwr_idx = pwr_info->power_table_idx + IL_CCK_FROM_OFDM_IDX_DIFF;
+ base_pwr_idx =
+ pwr_info->base_power_idx + IL_CCK_FROM_OFDM_IDX_DIFF;
+
+ /* stay within table range */
+ pwr_idx = il3945_hw_reg_fix_power_idx(pwr_idx);
+ gain = power_gain_table[a_band][pwr_idx].tx_gain;
+ dsp_atten = power_gain_table[a_band][pwr_idx].dsp_atten;
+
+ /* fill each CCK rate's il3945_channel_power_info structure
+ * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
+ * NOTE: CCK rates start at end of OFDM rates! */
+ for (rate_idx = 0; rate_idx < IL_CCK_RATES; rate_idx++) {
+ pwr_info =
+ &ch_info->power_info[rate_idx + IL_OFDM_RATES];
+ pwr_info->requested_power = power;
+ pwr_info->power_table_idx = pwr_idx;
+ pwr_info->base_power_idx = base_pwr_idx;
+ pwr_info->tpc.tx_gain = gain;
+ pwr_info->tpc.dsp_atten = dsp_atten;
+ }
+
+ /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
+ for (scan_tbl_idx = 0; scan_tbl_idx < IL_NUM_SCAN_RATES;
+ scan_tbl_idx++) {
+ s32 actual_idx =
+ (scan_tbl_idx ==
+ 0) ? RATE_1M_IDX_TBL : RATE_6M_IDX_TBL;
+ il3945_hw_reg_set_scan_power(il, scan_tbl_idx,
+ actual_idx, clip_pwrs,
+ ch_info, a_band);
+ }
+ }
+
+ return 0;
+}
+
+int
+il3945_hw_rxq_stop(struct il_priv *il)
+{
+ int rc;
+
+ il_wr(il, FH39_RCSR_CONFIG(0), 0);
+ rc = il_poll_bit(il, FH39_RSSR_STATUS,
+ FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
+ if (rc < 0)
+ IL_ERR("Can't stop Rx DMA.\n");
+
+ return 0;
+}
+
+int
+il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq)
+{
+ int txq_id = txq->q.id;
+
+ struct il3945_shared *shared_data = il->_3945.shared_virt;
+
+ shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32) txq->q.dma_addr);
+
+ il_wr(il, FH39_CBCC_CTRL(txq_id), 0);
+ il_wr(il, FH39_CBCC_BASE(txq_id), 0);
+
+ il_wr(il, FH39_TCSR_CONFIG(txq_id),
+ FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
+ FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
+ FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
+ FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
+ FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
+
+ /* fake read to flush all prev. writes */
+ _il_rd(il, FH39_TSSR_CBB_BASE);
+
+ return 0;
+}
+
+/*
+ * HCMD utils
+ */
+static u16
+il3945_get_hcmd_size(u8 cmd_id, u16 len)
+{
+ switch (cmd_id) {
+ case C_RXON:
+ return sizeof(struct il3945_rxon_cmd);
+ case C_POWER_TBL:
+ return sizeof(struct il3945_powertable_cmd);
+ default:
+ return len;
+ }
+}
+
+static u16
+il3945_build_addsta_hcmd(const struct il_addsta_cmd *cmd, u8 * data)
+{
+ struct il3945_addsta_cmd *addsta = (struct il3945_addsta_cmd *)data;
+ addsta->mode = cmd->mode;
+ memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
+ memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo));
+ addsta->station_flags = cmd->station_flags;
+ addsta->station_flags_msk = cmd->station_flags_msk;
+ addsta->tid_disable_tx = cpu_to_le16(0);
+ addsta->rate_n_flags = cmd->rate_n_flags;
+ addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
+ addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
+ addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
+
+ return (u16) sizeof(struct il3945_addsta_cmd);
+}
+
+static int
+il3945_add_bssid_station(struct il_priv *il, const u8 * addr, u8 * sta_id_r)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ int ret;
+ u8 sta_id;
+ unsigned long flags;
+
+ if (sta_id_r)
+ *sta_id_r = IL_INVALID_STATION;
+
+ ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
+ if (ret) {
+ IL_ERR("Unable to add station %pM\n", addr);
+ return ret;
+ }
+
+ if (sta_id_r)
+ *sta_id_r = sta_id;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].used |= IL_STA_LOCAL;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return 0;
+}
+
+static int
+il3945_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif,
+ bool add)
+{
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+ int ret;
+
+ if (add) {
+ ret =
+ il3945_add_bssid_station(il, vif->bss_conf.bssid,
+ &vif_priv->ibss_bssid_sta_id);
+ if (ret)
+ return ret;
+
+ il3945_sync_sta(il, vif_priv->ibss_bssid_sta_id,
+ (il->band ==
+ IEEE80211_BAND_5GHZ) ? RATE_6M_PLCP :
+ RATE_1M_PLCP);
+ il3945_rate_scale_init(il->hw, vif_priv->ibss_bssid_sta_id);
+
+ return 0;
+ }
+
+ return il_remove_station(il, vif_priv->ibss_bssid_sta_id,
+ vif->bss_conf.bssid);
+}
+
+/**
+ * il3945_init_hw_rate_table - Initialize the hardware rate fallback table
+ */
+int
+il3945_init_hw_rate_table(struct il_priv *il)
+{
+ int rc, i, idx, prev_idx;
+ struct il3945_rate_scaling_cmd rate_cmd = {
+ .reserved = {0, 0, 0},
+ };
+ struct il3945_rate_scaling_info *table = rate_cmd.table;
+
+ for (i = 0; i < ARRAY_SIZE(il3945_rates); i++) {
+ idx = il3945_rates[i].table_rs_idx;
+
+ table[idx].rate_n_flags =
+ il3945_hw_set_rate_n_flags(il3945_rates[i].plcp, 0);
+ table[idx].try_cnt = il->retry_rate;
+ prev_idx = il3945_get_prev_ieee_rate(i);
+ table[idx].next_rate_idx = il3945_rates[prev_idx].table_rs_idx;
+ }
+
+ switch (il->band) {
+ case IEEE80211_BAND_5GHZ:
+ D_RATE("Select A mode rate scale\n");
+ /* If one of the following CCK rates is used,
+ * have it fall back to the 6M OFDM rate */
+ for (i = RATE_1M_IDX_TBL; i <= RATE_11M_IDX_TBL; i++)
+ table[i].next_rate_idx =
+ il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx;
+
+ /* Don't fall back to CCK rates */
+ table[RATE_12M_IDX_TBL].next_rate_idx = RATE_9M_IDX_TBL;
+
+ /* Don't drop out of OFDM rates */
+ table[RATE_6M_IDX_TBL].next_rate_idx =
+ il3945_rates[IL_FIRST_OFDM_RATE].table_rs_idx;
+ break;
+
+ case IEEE80211_BAND_2GHZ:
+ D_RATE("Select B/G mode rate scale\n");
+ /* If an OFDM rate is used, have it fall back to the
+ * 1M CCK rates */
+
+ if (!(il->_3945.sta_supp_rates & IL_OFDM_RATES_MASK) &&
+ il_is_associated(il)) {
+
+ idx = IL_FIRST_CCK_RATE;
+ for (i = RATE_6M_IDX_TBL; i <= RATE_54M_IDX_TBL; i++)
+ table[i].next_rate_idx =
+ il3945_rates[idx].table_rs_idx;
+
+ idx = RATE_11M_IDX_TBL;
+ /* CCK shouldn't fall back to OFDM... */
+ table[idx].next_rate_idx = RATE_5M_IDX_TBL;
+ }
+ break;
+
+ default:
+ WARN_ON(1);
+ break;
+ }
+
+ /* Update the rate scaling for control frame Tx */
+ rate_cmd.table_id = 0;
+ rc = il_send_cmd_pdu(il, C_RATE_SCALE, sizeof(rate_cmd), &rate_cmd);
+ if (rc)
+ return rc;
+
+ /* Update the rate scaling for data frame Tx */
+ rate_cmd.table_id = 1;
+ return il_send_cmd_pdu(il, C_RATE_SCALE, sizeof(rate_cmd), &rate_cmd);
+}
+
+/* Called when initializing driver */
+int
+il3945_hw_set_hw_params(struct il_priv *il)
+{
+ memset((void *)&il->hw_params, 0, sizeof(struct il_hw_params));
+
+ il->_3945.shared_virt =
+ dma_alloc_coherent(&il->pci_dev->dev, sizeof(struct il3945_shared),
+ &il->_3945.shared_phys, GFP_KERNEL);
+ if (!il->_3945.shared_virt) {
+ IL_ERR("failed to allocate pci memory\n");
+ return -ENOMEM;
+ }
+
+ /* Assign number of Usable TX queues */
+ il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues;
+
+ il->hw_params.tfd_size = sizeof(struct il3945_tfd);
+ il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_3K);
+ il->hw_params.max_rxq_size = RX_QUEUE_SIZE;
+ il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ il->hw_params.max_stations = IL3945_STATION_COUNT;
+ il->ctx.bcast_sta_id = IL3945_BROADCAST_ID;
+
+ il->sta_key_max_num = STA_KEY_MAX_NUM;
+
+ il->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
+ il->hw_params.max_beacon_itrvl = IL39_MAX_UCODE_BEACON_INTERVAL;
+ il->hw_params.beacon_time_tsf_bits = IL3945_EXT_BEACON_TIME_POS;
+
+ return 0;
+}
+
+unsigned int
+il3945_hw_get_beacon_cmd(struct il_priv *il, struct il3945_frame *frame,
+ u8 rate)
+{
+ struct il3945_tx_beacon_cmd *tx_beacon_cmd;
+ unsigned int frame_size;
+
+ tx_beacon_cmd = (struct il3945_tx_beacon_cmd *)&frame->u;
+ memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
+
+ tx_beacon_cmd->tx.sta_id = il->ctx.bcast_sta_id;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ frame_size =
+ il3945_fill_beacon_frame(il, tx_beacon_cmd->frame,
+ sizeof(frame->u) - sizeof(*tx_beacon_cmd));
+
+ BUG_ON(frame_size > MAX_MPDU_SIZE);
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16) frame_size);
+
+ tx_beacon_cmd->tx.rate = rate;
+ tx_beacon_cmd->tx.tx_flags =
+ (TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK);
+
+ /* supp_rates[0] == OFDM start at IL_FIRST_OFDM_RATE */
+ tx_beacon_cmd->tx.supp_rates[0] =
+ (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF;
+
+ tx_beacon_cmd->tx.supp_rates[1] = (IL_CCK_BASIC_RATES_MASK & 0xF);
+
+ return sizeof(struct il3945_tx_beacon_cmd) + frame_size;
+}
+
+void
+il3945_hw_handler_setup(struct il_priv *il)
+{
+ il->handlers[C_TX] = il3945_hdl_tx;
+ il->handlers[N_3945_RX] = il3945_hdl_rx;
+}
+
+void
+il3945_hw_setup_deferred_work(struct il_priv *il)
+{
+ INIT_DELAYED_WORK(&il->_3945.thermal_periodic,
+ il3945_bg_reg_txpower_periodic);
+}
+
+void
+il3945_hw_cancel_deferred_work(struct il_priv *il)
+{
+ cancel_delayed_work(&il->_3945.thermal_periodic);
+}
+
+/* check contents of special bootstrap uCode SRAM */
+static int
+il3945_verify_bsm(struct il_priv *il)
+{
+ __le32 *image = il->ucode_boot.v_addr;
+ u32 len = il->ucode_boot.len;
+ u32 reg;
+ u32 val;
+
+ D_INFO("Begin verify bsm\n");
+
+ /* verify BSM SRAM contents */
+ val = il_rd_prph(il, BSM_WR_DWCOUNT_REG);
+ for (reg = BSM_SRAM_LOWER_BOUND; reg < BSM_SRAM_LOWER_BOUND + len;
+ reg += sizeof(u32), image++) {
+ val = il_rd_prph(il, reg);
+ if (val != le32_to_cpu(*image)) {
+ IL_ERR("BSM uCode verification failed at "
+ "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+ BSM_SRAM_LOWER_BOUND, reg - BSM_SRAM_LOWER_BOUND,
+ len, val, le32_to_cpu(*image));
+ return -EIO;
+ }
+ }
+
+ D_INFO("BSM bootstrap uCode image OK\n");
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+ ******************************************************************************/
+
+/*
+ * Clear the OWNER_MSK, to establish driver (instead of uCode running on
+ * embedded controller) as EEPROM reader; each read is a series of pulses
+ * to/from the EEPROM chip, not a single event, so even reads could conflict
+ * if they weren't arbitrated by some ownership mechanism. Here, the driver
+ * simply claims ownership, which should be safe when this function is called
+ * (i.e. before loading uCode!).
+ */
+static int
+il3945_eeprom_acquire_semaphore(struct il_priv *il)
+{
+ _il_clear_bit(il, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
+ return 0;
+}
+
+static void
+il3945_eeprom_release_semaphore(struct il_priv *il)
+{
+ return;
+}
+
+ /**
+ * il3945_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL. When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers. Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image. This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program. This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int
+il3945_load_bsm(struct il_priv *il)
+{
+ __le32 *image = il->ucode_boot.v_addr;
+ u32 len = il->ucode_boot.len;
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ u32 inst_len;
+ u32 data_len;
+ int rc;
+ int i;
+ u32 done;
+ u32 reg_offset;
+
+ D_INFO("Begin load bsm\n");
+
+ /* make sure bootstrap program is no larger than BSM's SRAM size */
+ if (len > IL39_MAX_BSM_SIZE)
+ return -EINVAL;
+
+ /* Tell bootstrap uCode where to find the "Initialize" uCode
+ * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
+ * NOTE: il3945_initialize_alive_start() will replace these values,
+ * after the "initialize" uCode has run, to point to
+ * runtime/protocol instructions and backup data cache. */
+ pinst = il->ucode_init.p_addr;
+ pdata = il->ucode_init_data.p_addr;
+ inst_len = il->ucode_init.len;
+ data_len = il->ucode_init_data.len;
+
+ il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
+ il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
+ il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+ il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+ /* Fill BSM memory with bootstrap instructions */
+ for (reg_offset = BSM_SRAM_LOWER_BOUND;
+ reg_offset < BSM_SRAM_LOWER_BOUND + len;
+ reg_offset += sizeof(u32), image++)
+ _il_wr_prph(il, reg_offset, le32_to_cpu(*image));
+
+ rc = il3945_verify_bsm(il);
+ if (rc)
+ return rc;
+
+ /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+ il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0);
+ il_wr_prph(il, BSM_WR_MEM_DST_REG, IL39_RTC_INST_LOWER_BOUND);
+ il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+ /* Load bootstrap code into instruction SRAM now,
+ * to prepare to load "initialize" uCode */
+ il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START);
+
+ /* Wait for load of bootstrap uCode to finish */
+ for (i = 0; i < 100; i++) {
+ done = il_rd_prph(il, BSM_WR_CTRL_REG);
+ if (!(done & BSM_WR_CTRL_REG_BIT_START))
+ break;
+ udelay(10);
+ }
+ if (i < 100)
+ D_INFO("BSM write complete, poll %d iterations\n", i);
+ else {
+ IL_ERR("BSM write did not complete!\n");
+ return -EIO;
+ }
+
+ /* Enable future boot loads whenever power management unit triggers it
+ * (e.g. when powering back up after power-save shutdown) */
+ il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN);
+
+ return 0;
+}
+
+static struct il_hcmd_ops il3945_hcmd = {
+ .rxon_assoc = il3945_send_rxon_assoc,
+ .commit_rxon = il3945_commit_rxon,
+};
+
+static struct il_lib_ops il3945_lib = {
+ .txq_attach_buf_to_tfd = il3945_hw_txq_attach_buf_to_tfd,
+ .txq_free_tfd = il3945_hw_txq_free_tfd,
+ .txq_init = il3945_hw_tx_queue_init,
+ .load_ucode = il3945_load_bsm,
+ .dump_nic_error_log = il3945_dump_nic_error_log,
+ .apm_ops = {
+ .init = il3945_apm_init,
+ .config = il3945_nic_config,
+ },
+ .eeprom_ops = {
+ .regulatory_bands = {
+ EEPROM_REGULATORY_BAND_1_CHANNELS,
+ EEPROM_REGULATORY_BAND_2_CHANNELS,
+ EEPROM_REGULATORY_BAND_3_CHANNELS,
+ EEPROM_REGULATORY_BAND_4_CHANNELS,
+ EEPROM_REGULATORY_BAND_5_CHANNELS,
+ EEPROM_REGULATORY_BAND_NO_HT40,
+ EEPROM_REGULATORY_BAND_NO_HT40,
+ },
+ .acquire_semaphore = il3945_eeprom_acquire_semaphore,
+ .release_semaphore = il3945_eeprom_release_semaphore,
+ },
+ .send_tx_power = il3945_send_tx_power,
+ .is_valid_rtc_data_addr = il3945_hw_valid_rtc_data_addr,
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ .debugfs_ops = {
+ .rx_stats_read = il3945_ucode_rx_stats_read,
+ .tx_stats_read = il3945_ucode_tx_stats_read,
+ .general_stats_read = il3945_ucode_general_stats_read,
+ },
+#endif
+};
+
+static const struct il_legacy_ops il3945_legacy_ops = {
+ .post_associate = il3945_post_associate,
+ .config_ap = il3945_config_ap,
+ .manage_ibss_station = il3945_manage_ibss_station,
+};
+
+static struct il_hcmd_utils_ops il3945_hcmd_utils = {
+ .get_hcmd_size = il3945_get_hcmd_size,
+ .build_addsta_hcmd = il3945_build_addsta_hcmd,
+ .request_scan = il3945_request_scan,
+ .post_scan = il3945_post_scan,
+};
+
+static const struct il_ops il3945_ops = {
+ .lib = &il3945_lib,
+ .hcmd = &il3945_hcmd,
+ .utils = &il3945_hcmd_utils,
+ .led = &il3945_led_ops,
+ .legacy = &il3945_legacy_ops,
+ .ieee80211_ops = &il3945_hw_ops,
+};
+
+static struct il_base_params il3945_base_params = {
+ .eeprom_size = IL3945_EEPROM_IMG_SIZE,
+ .num_of_queues = IL39_NUM_QUEUES,
+ .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
+ .set_l0s = false,
+ .use_bsm = true,
+ .led_compensation = 64,
+ .wd_timeout = IL_DEF_WD_TIMEOUT,
+};
+
+static struct il_cfg il3945_bg_cfg = {
+ .name = "3945BG",
+ .fw_name_pre = IL3945_FW_PRE,
+ .ucode_api_max = IL3945_UCODE_API_MAX,
+ .ucode_api_min = IL3945_UCODE_API_MIN,
+ .sku = IL_SKU_G,
+ .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
+ .ops = &il3945_ops,
+ .mod_params = &il3945_mod_params,
+ .base_params = &il3945_base_params,
+ .led_mode = IL_LED_BLINK,
+};
+
+static struct il_cfg il3945_abg_cfg = {
+ .name = "3945ABG",
+ .fw_name_pre = IL3945_FW_PRE,
+ .ucode_api_max = IL3945_UCODE_API_MAX,
+ .ucode_api_min = IL3945_UCODE_API_MIN,
+ .sku = IL_SKU_A | IL_SKU_G,
+ .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
+ .ops = &il3945_ops,
+ .mod_params = &il3945_mod_params,
+ .base_params = &il3945_base_params,
+ .led_mode = IL_LED_BLINK,
+};
+
+DEFINE_PCI_DEVICE_TABLE(il3945_hw_card_ids) = {
+ {IL_PCI_DEVICE(0x4222, 0x1005, il3945_bg_cfg)},
+ {IL_PCI_DEVICE(0x4222, 0x1034, il3945_bg_cfg)},
+ {IL_PCI_DEVICE(0x4222, 0x1044, il3945_bg_cfg)},
+ {IL_PCI_DEVICE(0x4227, 0x1014, il3945_bg_cfg)},
+ {IL_PCI_DEVICE(0x4222, PCI_ANY_ID, il3945_abg_cfg)},
+ {IL_PCI_DEVICE(0x4227, PCI_ANY_ID, il3945_abg_cfg)},
+ {0}
+};
+
+MODULE_DEVICE_TABLE(pci, il3945_hw_card_ids);
diff --git a/drivers/net/wireless/iwlegacy/3945.h b/drivers/net/wireless/iwlegacy/3945.h
new file mode 100644
index 0000000..2b2895c
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/3945.h
@@ -0,0 +1,626 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __il_3945_h__
+#define __il_3945_h__
+
+#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
+#include <net/ieee80211_radiotap.h>
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+extern const struct pci_device_id il3945_hw_card_ids[];
+
+#include "common.h"
+
+/* Highest firmware API version supported */
+#define IL3945_UCODE_API_MAX 2
+
+/* Lowest firmware API version supported */
+#define IL3945_UCODE_API_MIN 1
+
+#define IL3945_FW_PRE "iwlwifi-3945-"
+#define _IL3945_MODULE_FIRMWARE(api) IL3945_FW_PRE #api ".ucode"
+#define IL3945_MODULE_FIRMWARE(api) _IL3945_MODULE_FIRMWARE(api)
+
+/* Default noise level to report when noise measurement is not available.
+ * This may be because we're:
+ * 1) Not associated (4965, no beacon stats being sent to driver)
+ * 2) Scanning (noise measurement does not apply to associated channel)
+ * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ * Also, -127 works better than 0 when averaging frames with/without
+ * noise info (e.g. averaging might be done in app); measured dBm values are
+ * always negative ... using a negative value as the default keeps all
+ * averages within an s8's (used in some apps) range of negative values. */
+#define IL_NOISE_MEAS_NOT_AVAILABLE (-127)
+
+/* Module parameters accessible from iwl-*.c */
+extern struct il_mod_params il3945_mod_params;
+
+struct il3945_rate_scale_data {
+ u64 data;
+ s32 success_counter;
+ s32 success_ratio;
+ s32 counter;
+ s32 average_tpt;
+ unsigned long stamp;
+};
+
+struct il3945_rs_sta {
+ spinlock_t lock;
+ struct il_priv *il;
+ s32 *expected_tpt;
+ unsigned long last_partial_flush;
+ unsigned long last_flush;
+ u32 flush_time;
+ u32 last_tx_packets;
+ u32 tx_packets;
+ u8 tgg;
+ u8 flush_pending;
+ u8 start_rate;
+ struct timer_list rate_scale_flush;
+ struct il3945_rate_scale_data win[RATE_COUNT_3945];
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *rs_sta_dbgfs_stats_table_file;
+#endif
+
+ /* used to be in sta_info */
+ int last_txrate_idx;
+};
+
+/*
+ * The common struct MUST be first because it is shared between
+ * 3945 and 4965!
+ */
+struct il3945_sta_priv {
+ struct il_station_priv_common common;
+ struct il3945_rs_sta rs_sta;
+};
+
+enum il3945_antenna {
+ IL_ANTENNA_DIVERSITY,
+ IL_ANTENNA_MAIN,
+ IL_ANTENNA_AUX
+};
+
+/*
+ * RTS threshold here is total size [2347] minus 4 FCS bytes
+ * Per spec:
+ * a value of 0 means RTS on all data/management packets
+ * a value > max MSDU size means no RTS
+ * else RTS for data/management frames where MPDU is larger
+ * than RTS value.
+ */
+#define DEFAULT_RTS_THRESHOLD 2347U
+#define MIN_RTS_THRESHOLD 0U
+#define MAX_RTS_THRESHOLD 2347U
+#define MAX_MSDU_SIZE 2304U
+#define MAX_MPDU_SIZE 2346U
+#define DEFAULT_BEACON_INTERVAL 100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT 4U
+
+#define IL_TX_FIFO_AC0 0
+#define IL_TX_FIFO_AC1 1
+#define IL_TX_FIFO_AC2 2
+#define IL_TX_FIFO_AC3 3
+#define IL_TX_FIFO_HCCA_1 5
+#define IL_TX_FIFO_HCCA_2 6
+#define IL_TX_FIFO_NONE 7
+
+#define IEEE80211_DATA_LEN 2304
+#define IEEE80211_4ADDR_LEN 30
+#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+struct il3945_frame {
+ union {
+ struct ieee80211_hdr frame;
+ struct il3945_tx_beacon_cmd beacon;
+ u8 raw[IEEE80211_FRAME_LEN];
+ u8 cmd[360];
+ } u;
+ struct list_head list;
+};
+
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+#define IL_SUPPORTED_RATES_IE_LEN 8
+
+#define SCAN_INTERVAL 100
+
+#define MAX_TID_COUNT 9
+
+#define IL_INVALID_RATE 0xFF
+#define IL_INVALID_VALUE -1
+
+#define STA_PS_STATUS_WAKE 0
+#define STA_PS_STATUS_SLEEP 1
+
+struct il3945_ibss_seq {
+ u8 mac[ETH_ALEN];
+ u16 seq_num;
+ u16 frag_num;
+ unsigned long packet_time;
+ struct list_head list;
+};
+
+#define IL_RX_HDR(x) ((struct il3945_rx_frame_hdr *)(\
+ x->u.rx_frame.stats.payload + \
+ x->u.rx_frame.stats.phy_count))
+#define IL_RX_END(x) ((struct il3945_rx_frame_end *)(\
+ IL_RX_HDR(x)->payload + \
+ le16_to_cpu(IL_RX_HDR(x)->len)))
+#define IL_RX_STATS(x) (&x->u.rx_frame.stats)
+#define IL_RX_DATA(x) (IL_RX_HDR(x)->payload)
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl3945-base.c which are forward declared here
+ * for use by iwl-*.c
+ *
+ *****************************************************************************/
+extern int il3945_calc_db_from_ratio(int sig_ratio);
+extern void il3945_rx_replenish(void *data);
+extern void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
+extern unsigned int il3945_fill_beacon_frame(struct il_priv *il,
+ struct ieee80211_hdr *hdr,
+ int left);
+extern int il3945_dump_nic_event_log(struct il_priv *il, bool full_log,
+ char **buf, bool display);
+extern void il3945_dump_nic_error_log(struct il_priv *il);
+
+/******************************************************************************
+ *
+ * Functions implemented in iwl-[34]*.c which are forward declared here
+ * for use by iwl3945-base.c
+ *
+ * NOTE: The implementation of these functions are hardware specific
+ * which is why they are in the hardware specific files (vs. iwl-base.c)
+ *
+ * Naming convention --
+ * il3945_ <-- Its part of iwlwifi (should be changed to il3945_)
+ * il3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
+ * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
+ * il3945_bg_ <-- Called from work queue context
+ * il3945_mac_ <-- mac80211 callback
+ *
+ ****************************************************************************/
+extern void il3945_hw_handler_setup(struct il_priv *il);
+extern void il3945_hw_setup_deferred_work(struct il_priv *il);
+extern void il3945_hw_cancel_deferred_work(struct il_priv *il);
+extern int il3945_hw_rxq_stop(struct il_priv *il);
+extern int il3945_hw_set_hw_params(struct il_priv *il);
+extern int il3945_hw_nic_init(struct il_priv *il);
+extern int il3945_hw_nic_stop_master(struct il_priv *il);
+extern void il3945_hw_txq_ctx_free(struct il_priv *il);
+extern void il3945_hw_txq_ctx_stop(struct il_priv *il);
+extern int il3945_hw_nic_reset(struct il_priv *il);
+extern int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
+ struct il_tx_queue *txq,
+ dma_addr_t addr, u16 len, u8 reset,
+ u8 pad);
+extern void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
+extern int il3945_hw_get_temperature(struct il_priv *il);
+extern int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
+extern unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
+ struct il3945_frame *frame,
+ u8 rate);
+void il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_hdr *hdr, int sta_id,
+ int tx_id);
+extern int il3945_hw_reg_send_txpower(struct il_priv *il);
+extern int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power);
+extern void il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb);
+void il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb);
+extern void il3945_disable_events(struct il_priv *il);
+extern int il4965_get_temperature(const struct il_priv *il);
+extern void il3945_post_associate(struct il_priv *il);
+extern void il3945_config_ap(struct il_priv *il);
+
+extern int il3945_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx);
+
+/**
+ * il3945_hw_find_station - Find station id for a given BSSID
+ * @bssid: MAC address of station ID to find
+ *
+ * NOTE: This should not be hardware specific but the code has
+ * not yet been merged into a single common layer for managing the
+ * station tables.
+ */
+extern u8 il3945_hw_find_station(struct il_priv *il, const u8 * bssid);
+
+extern struct ieee80211_ops il3945_hw_ops;
+
+extern __le32 il3945_get_antenna_flags(const struct il_priv *il);
+extern int il3945_init_hw_rate_table(struct il_priv *il);
+extern void il3945_reg_txpower_periodic(struct il_priv *il);
+extern int il3945_txpower_set_from_eeprom(struct il_priv *il);
+
+extern int il3945_rs_next_rate(struct il_priv *il, int rate);
+
+/* scanning */
+int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
+void il3945_post_scan(struct il_priv *il);
+
+/* rates */
+extern const struct il3945_rate_info il3945_rates[RATE_COUNT_3945];
+
+/* RSSI to dBm */
+#define IL39_RSSI_OFFSET 95
+
+/*
+ * EEPROM related constants, enums, and structures.
+ */
+#define EEPROM_SKU_CAP_OP_MODE_MRC (1 << 7)
+
+/*
+ * Mapping of a Tx power level, at factory calibration temperature,
+ * to a radio/DSP gain table idx.
+ * One for each of 5 "sample" power levels in each band.
+ * v_det is measured at the factory, using the 3945's built-in power amplifier
+ * (PA) output voltage detector. This same detector is used during Tx of
+ * long packets in normal operation to provide feedback as to proper output
+ * level.
+ * Data copied from EEPROM.
+ * DO NOT ALTER THIS STRUCTURE!!!
+ */
+struct il3945_eeprom_txpower_sample {
+ u8 gain_idx; /* idx into power (gain) setup table ... */
+ s8 power; /* ... for this pwr level for this chnl group */
+ u16 v_det; /* PA output voltage */
+} __packed;
+
+/*
+ * Mappings of Tx power levels -> nominal radio/DSP gain table idxes.
+ * One for each channel group (a.k.a. "band") (1 for BG, 4 for A).
+ * Tx power setup code interpolates between the 5 "sample" power levels
+ * to determine the nominal setup for a requested power level.
+ * Data copied from EEPROM.
+ * DO NOT ALTER THIS STRUCTURE!!!
+ */
+struct il3945_eeprom_txpower_group {
+ struct il3945_eeprom_txpower_sample samples[5]; /* 5 power levels */
+ s32 a, b, c, d, e; /* coefficients for voltage->power
+ * formula (signed) */
+ s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on
+ * frequency (signed) */
+ s8 saturation_power; /* highest power possible by h/w in this
+ * band */
+ u8 group_channel; /* "representative" channel # in this band */
+ s16 temperature; /* h/w temperature at factory calib this band
+ * (signed) */
+} __packed;
+
+/*
+ * Temperature-based Tx-power compensation data, not band-specific.
+ * These coefficients are use to modify a/b/c/d/e coeffs based on
+ * difference between current temperature and factory calib temperature.
+ * Data copied from EEPROM.
+ */
+struct il3945_eeprom_temperature_corr {
+ u32 Ta;
+ u32 Tb;
+ u32 Tc;
+ u32 Td;
+ u32 Te;
+} __packed;
+
+/*
+ * EEPROM map
+ */
+struct il3945_eeprom {
+ u8 reserved0[16];
+ u16 device_id; /* abs.ofs: 16 */
+ u8 reserved1[2];
+ u16 pmc; /* abs.ofs: 20 */
+ u8 reserved2[20];
+ u8 mac_address[6]; /* abs.ofs: 42 */
+ u8 reserved3[58];
+ u16 board_revision; /* abs.ofs: 106 */
+ u8 reserved4[11];
+ u8 board_pba_number[9]; /* abs.ofs: 119 */
+ u8 reserved5[8];
+ u16 version; /* abs.ofs: 136 */
+ u8 sku_cap; /* abs.ofs: 138 */
+ u8 leds_mode; /* abs.ofs: 139 */
+ u16 oem_mode;
+ u16 wowlan_mode; /* abs.ofs: 142 */
+ u16 leds_time_interval; /* abs.ofs: 144 */
+ u8 leds_off_time; /* abs.ofs: 146 */
+ u8 leds_on_time; /* abs.ofs: 147 */
+ u8 almgor_m_version; /* abs.ofs: 148 */
+ u8 antenna_switch_type; /* abs.ofs: 149 */
+ u8 reserved6[42];
+ u8 sku_id[4]; /* abs.ofs: 192 */
+
+/*
+ * Per-channel regulatory data.
+ *
+ * Each channel that *might* be supported by 3945 has a fixed location
+ * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
+ * txpower (MSB).
+ *
+ * Entries immediately below are for 20 MHz channel width.
+ *
+ * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+ */
+ u16 band_1_count; /* abs.ofs: 196 */
+ struct il_eeprom_channel band_1_channels[14]; /* abs.ofs: 198 */
+
+/*
+ * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
+ * 5.0 GHz channels 7, 8, 11, 12, 16
+ * (4915-5080MHz) (none of these is ever supported)
+ */
+ u16 band_2_count; /* abs.ofs: 226 */
+ struct il_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */
+
+/*
+ * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+ * (5170-5320MHz)
+ */
+ u16 band_3_count; /* abs.ofs: 254 */
+ struct il_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */
+
+/*
+ * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+ * (5500-5700MHz)
+ */
+ u16 band_4_count; /* abs.ofs: 280 */
+ struct il_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */
+
+/*
+ * 5.7 GHz channels 145, 149, 153, 157, 161, 165
+ * (5725-5825MHz)
+ */
+ u16 band_5_count; /* abs.ofs: 304 */
+ struct il_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */
+
+ u8 reserved9[194];
+
+/*
+ * 3945 Txpower calibration data.
+ */
+#define IL_NUM_TX_CALIB_GROUPS 5
+ struct il3945_eeprom_txpower_group groups[IL_NUM_TX_CALIB_GROUPS];
+/* abs.ofs: 512 */
+ struct il3945_eeprom_temperature_corr corrections; /* abs.ofs: 832 */
+ u8 reserved16[172]; /* fill out to full 1024 byte block */
+} __packed;
+
+#define IL3945_EEPROM_IMG_SIZE 1024
+
+/* End of EEPROM */
+
+#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */
+#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */
+
+/* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */
+#define IL39_NUM_QUEUES 5
+#define IL39_CMD_QUEUE_NUM 4
+
+#define IL_DEFAULT_TX_RETRY 15
+
+/*********************************************/
+
+#define RFD_SIZE 4
+#define NUM_TFD_CHUNKS 4
+
+#define TFD_CTL_COUNT_SET(n) (n << 24)
+#define TFD_CTL_COUNT_GET(ctl) ((ctl >> 24) & 7)
+#define TFD_CTL_PAD_SET(n) (n << 28)
+#define TFD_CTL_PAD_GET(ctl) (ctl >> 28)
+
+/* Sizes and addresses for instruction and data memory (SRAM) in
+ * 3945's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
+#define IL39_RTC_INST_LOWER_BOUND (0x000000)
+#define IL39_RTC_INST_UPPER_BOUND (0x014000)
+
+#define IL39_RTC_DATA_LOWER_BOUND (0x800000)
+#define IL39_RTC_DATA_UPPER_BOUND (0x808000)
+
+#define IL39_RTC_INST_SIZE (IL39_RTC_INST_UPPER_BOUND - \
+ IL39_RTC_INST_LOWER_BOUND)
+#define IL39_RTC_DATA_SIZE (IL39_RTC_DATA_UPPER_BOUND - \
+ IL39_RTC_DATA_LOWER_BOUND)
+
+#define IL39_MAX_INST_SIZE IL39_RTC_INST_SIZE
+#define IL39_MAX_DATA_SIZE IL39_RTC_DATA_SIZE
+
+/* Size of uCode instruction memory in bootstrap state machine */
+#define IL39_MAX_BSM_SIZE IL39_RTC_INST_SIZE
+
+static inline int
+il3945_hw_valid_rtc_data_addr(u32 addr)
+{
+ return (addr >= IL39_RTC_DATA_LOWER_BOUND &&
+ addr < IL39_RTC_DATA_UPPER_BOUND);
+}
+
+/* Base physical address of il3945_shared is provided to FH39_TSSR_CBB_BASE
+ * and &il3945_shared.rx_read_ptr[0] is provided to FH39_RCSR_RPTR_ADDR(0) */
+struct il3945_shared {
+ __le32 tx_base_ptr[8];
+} __packed;
+
+static inline u8
+il3945_hw_get_rate(__le16 rate_n_flags)
+{
+ return le16_to_cpu(rate_n_flags) & 0xFF;
+}
+
+static inline u16
+il3945_hw_get_rate_n_flags(__le16 rate_n_flags)
+{
+ return le16_to_cpu(rate_n_flags);
+}
+
+static inline __le16
+il3945_hw_set_rate_n_flags(u8 rate, u16 flags)
+{
+ return cpu_to_le16((u16) rate | flags);
+}
+
+/************************************/
+/* iwl3945 Flow Handler Definitions */
+/************************************/
+
+/**
+ * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
+ * Addresses are offsets from device's PCI hardware base address.
+ */
+#define FH39_MEM_LOWER_BOUND (0x0800)
+#define FH39_MEM_UPPER_BOUND (0x1000)
+
+#define FH39_CBCC_TBL (FH39_MEM_LOWER_BOUND + 0x140)
+#define FH39_TFDB_TBL (FH39_MEM_LOWER_BOUND + 0x180)
+#define FH39_RCSR_TBL (FH39_MEM_LOWER_BOUND + 0x400)
+#define FH39_RSSR_TBL (FH39_MEM_LOWER_BOUND + 0x4c0)
+#define FH39_TCSR_TBL (FH39_MEM_LOWER_BOUND + 0x500)
+#define FH39_TSSR_TBL (FH39_MEM_LOWER_BOUND + 0x680)
+
+/* TFDB (Transmit Frame Buffer Descriptor) */
+#define FH39_TFDB(_ch, buf) (FH39_TFDB_TBL + \
+ ((_ch) * 2 + (buf)) * 0x28)
+#define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch) (FH39_TFDB_TBL + 0x50 * (_ch))
+
+/* CBCC channel is [0,2] */
+#define FH39_CBCC(_ch) (FH39_CBCC_TBL + (_ch) * 0x8)
+#define FH39_CBCC_CTRL(_ch) (FH39_CBCC(_ch) + 0x00)
+#define FH39_CBCC_BASE(_ch) (FH39_CBCC(_ch) + 0x04)
+
+/* RCSR channel is [0,2] */
+#define FH39_RCSR(_ch) (FH39_RCSR_TBL + (_ch) * 0x40)
+#define FH39_RCSR_CONFIG(_ch) (FH39_RCSR(_ch) + 0x00)
+#define FH39_RCSR_RBD_BASE(_ch) (FH39_RCSR(_ch) + 0x04)
+#define FH39_RCSR_WPTR(_ch) (FH39_RCSR(_ch) + 0x20)
+#define FH39_RCSR_RPTR_ADDR(_ch) (FH39_RCSR(_ch) + 0x24)
+
+#define FH39_RSCSR_CHNL0_WPTR (FH39_RCSR_WPTR(0))
+
+/* RSSR */
+#define FH39_RSSR_CTRL (FH39_RSSR_TBL + 0x000)
+#define FH39_RSSR_STATUS (FH39_RSSR_TBL + 0x004)
+
+/* TCSR */
+#define FH39_TCSR(_ch) (FH39_TCSR_TBL + (_ch) * 0x20)
+#define FH39_TCSR_CONFIG(_ch) (FH39_TCSR(_ch) + 0x00)
+#define FH39_TCSR_CREDIT(_ch) (FH39_TCSR(_ch) + 0x04)
+#define FH39_TCSR_BUFF_STTS(_ch) (FH39_TCSR(_ch) + 0x08)
+
+/* TSSR */
+#define FH39_TSSR_CBB_BASE (FH39_TSSR_TBL + 0x000)
+#define FH39_TSSR_MSG_CONFIG (FH39_TSSR_TBL + 0x008)
+#define FH39_TSSR_TX_STATUS (FH39_TSSR_TBL + 0x010)
+
+/* DBM */
+
+#define FH39_SRVC_CHNL (6)
+
+#define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE (20)
+#define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH (4)
+
+#define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN (0x08000000)
+
+#define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE (0x80000000)
+
+#define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE (0x20000000)
+
+#define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 (0x01000000)
+
+#define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST (0x00001000)
+
+#define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH (0x00000000)
+
+#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
+#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001)
+
+#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000)
+#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008)
+
+#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
+
+#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
+
+#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
+#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
+
+#define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00004000)
+
+#define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001)
+
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000)
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000)
+
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400)
+
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100)
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080)
+
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020)
+#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005)
+
+#define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) (BIT(_ch) << 24)
+#define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch) (BIT(_ch) << 16)
+
+#define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \
+ (FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \
+ FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch))
+
+#define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
+
+struct il3945_tfd_tb {
+ __le32 addr;
+ __le32 len;
+} __packed;
+
+struct il3945_tfd {
+ __le32 control_flags;
+ struct il3945_tfd_tb tbs[4];
+ u8 __pad[28];
+} __packed;
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ssize_t il3945_ucode_rx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ssize_t il3945_ucode_tx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ssize_t il3945_ucode_general_stats_read(struct file *file,
+ char __user *user_buf, size_t count,
+ loff_t *ppos);
+#endif
+
+#endif
diff --git a/drivers/net/wireless/iwlegacy/4965-calib.c b/drivers/net/wireless/iwlegacy/4965-calib.c
new file mode 100644
index 0000000..d3248e3
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965-calib.c
@@ -0,0 +1,948 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#include <linux/slab.h>
+#include <net/mac80211.h>
+
+#include "common.h"
+#include "4965.h"
+
+/*****************************************************************************
+ * INIT calibrations framework
+ *****************************************************************************/
+
+struct stats_general_data {
+ u32 beacon_silence_rssi_a;
+ u32 beacon_silence_rssi_b;
+ u32 beacon_silence_rssi_c;
+ u32 beacon_energy_a;
+ u32 beacon_energy_b;
+ u32 beacon_energy_c;
+};
+
+void
+il4965_calib_free_results(struct il_priv *il)
+{
+ int i;
+
+ for (i = 0; i < IL_CALIB_MAX; i++) {
+ kfree(il->calib_results[i].buf);
+ il->calib_results[i].buf = NULL;
+ il->calib_results[i].buf_len = 0;
+ }
+}
+
+/*****************************************************************************
+ * RUNTIME calibrations framework
+ *****************************************************************************/
+
+/* "false alarms" are signals that our DSP tries to lock onto,
+ * but then determines that they are either noise, or transmissions
+ * from a distant wireless network (also "noise", really) that get
+ * "stepped on" by stronger transmissions within our own network.
+ * This algorithm attempts to set a sensitivity level that is high
+ * enough to receive all of our own network traffic, but not so
+ * high that our DSP gets too busy trying to lock onto non-network
+ * activity/noise. */
+static int
+il4965_sens_energy_cck(struct il_priv *il, u32 norm_fa, u32 rx_enable_time,
+ struct stats_general_data *rx_info)
+{
+ u32 max_nrg_cck = 0;
+ int i = 0;
+ u8 max_silence_rssi = 0;
+ u32 silence_ref = 0;
+ u8 silence_rssi_a = 0;
+ u8 silence_rssi_b = 0;
+ u8 silence_rssi_c = 0;
+ u32 val;
+
+ /* "false_alarms" values below are cross-multiplications to assess the
+ * numbers of false alarms within the measured period of actual Rx
+ * (Rx is off when we're txing), vs the min/max expected false alarms
+ * (some should be expected if rx is sensitive enough) in a
+ * hypothetical listening period of 200 time units (TU), 204.8 msec:
+ *
+ * MIN_FA/fixed-time < false_alarms/actual-rx-time < MAX_FA/beacon-time
+ *
+ * */
+ u32 false_alarms = norm_fa * 200 * 1024;
+ u32 max_false_alarms = MAX_FA_CCK * rx_enable_time;
+ u32 min_false_alarms = MIN_FA_CCK * rx_enable_time;
+ struct il_sensitivity_data *data = NULL;
+ const struct il_sensitivity_ranges *ranges = il->hw_params.sens;
+
+ data = &(il->sensitivity_data);
+
+ data->nrg_auto_corr_silence_diff = 0;
+
+ /* Find max silence rssi among all 3 receivers.
+ * This is background noise, which may include transmissions from other
+ * networks, measured during silence before our network's beacon */
+ silence_rssi_a =
+ (u8) ((rx_info->beacon_silence_rssi_a & ALL_BAND_FILTER) >> 8);
+ silence_rssi_b =
+ (u8) ((rx_info->beacon_silence_rssi_b & ALL_BAND_FILTER) >> 8);
+ silence_rssi_c =
+ (u8) ((rx_info->beacon_silence_rssi_c & ALL_BAND_FILTER) >> 8);
+
+ val = max(silence_rssi_b, silence_rssi_c);
+ max_silence_rssi = max(silence_rssi_a, (u8) val);
+
+ /* Store silence rssi in 20-beacon history table */
+ data->nrg_silence_rssi[data->nrg_silence_idx] = max_silence_rssi;
+ data->nrg_silence_idx++;
+ if (data->nrg_silence_idx >= NRG_NUM_PREV_STAT_L)
+ data->nrg_silence_idx = 0;
+
+ /* Find max silence rssi across 20 beacon history */
+ for (i = 0; i < NRG_NUM_PREV_STAT_L; i++) {
+ val = data->nrg_silence_rssi[i];
+ silence_ref = max(silence_ref, val);
+ }
+ D_CALIB("silence a %u, b %u, c %u, 20-bcn max %u\n", silence_rssi_a,
+ silence_rssi_b, silence_rssi_c, silence_ref);
+
+ /* Find max rx energy (min value!) among all 3 receivers,
+ * measured during beacon frame.
+ * Save it in 10-beacon history table. */
+ i = data->nrg_energy_idx;
+ val = min(rx_info->beacon_energy_b, rx_info->beacon_energy_c);
+ data->nrg_value[i] = min(rx_info->beacon_energy_a, val);
+
+ data->nrg_energy_idx++;
+ if (data->nrg_energy_idx >= 10)
+ data->nrg_energy_idx = 0;
+
+ /* Find min rx energy (max value) across 10 beacon history.
+ * This is the minimum signal level that we want to receive well.
+ * Add backoff (margin so we don't miss slightly lower energy frames).
+ * This establishes an upper bound (min value) for energy threshold. */
+ max_nrg_cck = data->nrg_value[0];
+ for (i = 1; i < 10; i++)
+ max_nrg_cck = (u32) max(max_nrg_cck, (data->nrg_value[i]));
+ max_nrg_cck += 6;
+
+ D_CALIB("rx energy a %u, b %u, c %u, 10-bcn max/min %u\n",
+ rx_info->beacon_energy_a, rx_info->beacon_energy_b,
+ rx_info->beacon_energy_c, max_nrg_cck - 6);
+
+ /* Count number of consecutive beacons with fewer-than-desired
+ * false alarms. */
+ if (false_alarms < min_false_alarms)
+ data->num_in_cck_no_fa++;
+ else
+ data->num_in_cck_no_fa = 0;
+ D_CALIB("consecutive bcns with few false alarms = %u\n",
+ data->num_in_cck_no_fa);
+
+ /* If we got too many false alarms this time, reduce sensitivity */
+ if (false_alarms > max_false_alarms &&
+ data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK) {
+ D_CALIB("norm FA %u > max FA %u\n", false_alarms,
+ max_false_alarms);
+ D_CALIB("... reducing sensitivity\n");
+ data->nrg_curr_state = IL_FA_TOO_MANY;
+ /* Store for "fewer than desired" on later beacon */
+ data->nrg_silence_ref = silence_ref;
+
+ /* increase energy threshold (reduce nrg value)
+ * to decrease sensitivity */
+ data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK;
+ /* Else if we got fewer than desired, increase sensitivity */
+ } else if (false_alarms < min_false_alarms) {
+ data->nrg_curr_state = IL_FA_TOO_FEW;
+
+ /* Compare silence level with silence level for most recent
+ * healthy number or too many false alarms */
+ data->nrg_auto_corr_silence_diff =
+ (s32) data->nrg_silence_ref - (s32) silence_ref;
+
+ D_CALIB("norm FA %u < min FA %u, silence diff %d\n",
+ false_alarms, min_false_alarms,
+ data->nrg_auto_corr_silence_diff);
+
+ /* Increase value to increase sensitivity, but only if:
+ * 1a) previous beacon did *not* have *too many* false alarms
+ * 1b) AND there's a significant difference in Rx levels
+ * from a previous beacon with too many, or healthy # FAs
+ * OR 2) We've seen a lot of beacons (100) with too few
+ * false alarms */
+ if (data->nrg_prev_state != IL_FA_TOO_MANY &&
+ (data->nrg_auto_corr_silence_diff > NRG_DIFF ||
+ data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA)) {
+
+ D_CALIB("... increasing sensitivity\n");
+ /* Increase nrg value to increase sensitivity */
+ val = data->nrg_th_cck + NRG_STEP_CCK;
+ data->nrg_th_cck = min((u32) ranges->min_nrg_cck, val);
+ } else {
+ D_CALIB("... but not changing sensitivity\n");
+ }
+
+ /* Else we got a healthy number of false alarms, keep status quo */
+ } else {
+ D_CALIB(" FA in safe zone\n");
+ data->nrg_curr_state = IL_FA_GOOD_RANGE;
+
+ /* Store for use in "fewer than desired" with later beacon */
+ data->nrg_silence_ref = silence_ref;
+
+ /* If previous beacon had too many false alarms,
+ * give it some extra margin by reducing sensitivity again
+ * (but don't go below measured energy of desired Rx) */
+ if (IL_FA_TOO_MANY == data->nrg_prev_state) {
+ D_CALIB("... increasing margin\n");
+ if (data->nrg_th_cck > (max_nrg_cck + NRG_MARGIN))
+ data->nrg_th_cck -= NRG_MARGIN;
+ else
+ data->nrg_th_cck = max_nrg_cck;
+ }
+ }
+
+ /* Make sure the energy threshold does not go above the measured
+ * energy of the desired Rx signals (reduced by backoff margin),
+ * or else we might start missing Rx frames.
+ * Lower value is higher energy, so we use max()!
+ */
+ data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck);
+ D_CALIB("new nrg_th_cck %u\n", data->nrg_th_cck);
+
+ data->nrg_prev_state = data->nrg_curr_state;
+
+ /* Auto-correlation CCK algorithm */
+ if (false_alarms > min_false_alarms) {
+
+ /* increase auto_corr values to decrease sensitivity
+ * so the DSP won't be disturbed by the noise
+ */
+ if (data->auto_corr_cck < AUTO_CORR_MAX_TH_CCK)
+ data->auto_corr_cck = AUTO_CORR_MAX_TH_CCK + 1;
+ else {
+ val = data->auto_corr_cck + AUTO_CORR_STEP_CCK;
+ data->auto_corr_cck =
+ min((u32) ranges->auto_corr_max_cck, val);
+ }
+ val = data->auto_corr_cck_mrc + AUTO_CORR_STEP_CCK;
+ data->auto_corr_cck_mrc =
+ min((u32) ranges->auto_corr_max_cck_mrc, val);
+ } else if (false_alarms < min_false_alarms &&
+ (data->nrg_auto_corr_silence_diff > NRG_DIFF ||
+ data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA)) {
+
+ /* Decrease auto_corr values to increase sensitivity */
+ val = data->auto_corr_cck - AUTO_CORR_STEP_CCK;
+ data->auto_corr_cck = max((u32) ranges->auto_corr_min_cck, val);
+ val = data->auto_corr_cck_mrc - AUTO_CORR_STEP_CCK;
+ data->auto_corr_cck_mrc =
+ max((u32) ranges->auto_corr_min_cck_mrc, val);
+ }
+
+ return 0;
+}
+
+static int
+il4965_sens_auto_corr_ofdm(struct il_priv *il, u32 norm_fa, u32 rx_enable_time)
+{
+ u32 val;
+ u32 false_alarms = norm_fa * 200 * 1024;
+ u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time;
+ u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time;
+ struct il_sensitivity_data *data = NULL;
+ const struct il_sensitivity_ranges *ranges = il->hw_params.sens;
+
+ data = &(il->sensitivity_data);
+
+ /* If we got too many false alarms this time, reduce sensitivity */
+ if (false_alarms > max_false_alarms) {
+
+ D_CALIB("norm FA %u > max FA %u)\n", false_alarms,
+ max_false_alarms);
+
+ val = data->auto_corr_ofdm + AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm =
+ min((u32) ranges->auto_corr_max_ofdm, val);
+
+ val = data->auto_corr_ofdm_mrc + AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_mrc =
+ min((u32) ranges->auto_corr_max_ofdm_mrc, val);
+
+ val = data->auto_corr_ofdm_x1 + AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_x1 =
+ min((u32) ranges->auto_corr_max_ofdm_x1, val);
+
+ val = data->auto_corr_ofdm_mrc_x1 + AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_mrc_x1 =
+ min((u32) ranges->auto_corr_max_ofdm_mrc_x1, val);
+ }
+
+ /* Else if we got fewer than desired, increase sensitivity */
+ else if (false_alarms < min_false_alarms) {
+
+ D_CALIB("norm FA %u < min FA %u\n", false_alarms,
+ min_false_alarms);
+
+ val = data->auto_corr_ofdm - AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm =
+ max((u32) ranges->auto_corr_min_ofdm, val);
+
+ val = data->auto_corr_ofdm_mrc - AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_mrc =
+ max((u32) ranges->auto_corr_min_ofdm_mrc, val);
+
+ val = data->auto_corr_ofdm_x1 - AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_x1 =
+ max((u32) ranges->auto_corr_min_ofdm_x1, val);
+
+ val = data->auto_corr_ofdm_mrc_x1 - AUTO_CORR_STEP_OFDM;
+ data->auto_corr_ofdm_mrc_x1 =
+ max((u32) ranges->auto_corr_min_ofdm_mrc_x1, val);
+ } else {
+ D_CALIB("min FA %u < norm FA %u < max FA %u OK\n",
+ min_false_alarms, false_alarms, max_false_alarms);
+ }
+ return 0;
+}
+
+static void
+il4965_prepare_legacy_sensitivity_tbl(struct il_priv *il,
+ struct il_sensitivity_data *data,
+ __le16 *tbl)
+{
+ tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX] =
+ cpu_to_le16((u16) data->auto_corr_ofdm);
+ tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX] =
+ cpu_to_le16((u16) data->auto_corr_ofdm_mrc);
+ tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX] =
+ cpu_to_le16((u16) data->auto_corr_ofdm_x1);
+ tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX] =
+ cpu_to_le16((u16) data->auto_corr_ofdm_mrc_x1);
+
+ tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX] =
+ cpu_to_le16((u16) data->auto_corr_cck);
+ tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX] =
+ cpu_to_le16((u16) data->auto_corr_cck_mrc);
+
+ tbl[HD_MIN_ENERGY_CCK_DET_IDX] = cpu_to_le16((u16) data->nrg_th_cck);
+ tbl[HD_MIN_ENERGY_OFDM_DET_IDX] = cpu_to_le16((u16) data->nrg_th_ofdm);
+
+ tbl[HD_BARKER_CORR_TH_ADD_MIN_IDX] =
+ cpu_to_le16(data->barker_corr_th_min);
+ tbl[HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX] =
+ cpu_to_le16(data->barker_corr_th_min_mrc);
+ tbl[HD_OFDM_ENERGY_TH_IN_IDX] = cpu_to_le16(data->nrg_th_cca);
+
+ D_CALIB("ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
+ data->auto_corr_ofdm, data->auto_corr_ofdm_mrc,
+ data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1,
+ data->nrg_th_ofdm);
+
+ D_CALIB("cck: ac %u mrc %u thresh %u\n", data->auto_corr_cck,
+ data->auto_corr_cck_mrc, data->nrg_th_cck);
+}
+
+/* Prepare a C_SENSITIVITY, send to uCode if values have changed */
+static int
+il4965_sensitivity_write(struct il_priv *il)
+{
+ struct il_sensitivity_cmd cmd;
+ struct il_sensitivity_data *data = NULL;
+ struct il_host_cmd cmd_out = {
+ .id = C_SENSITIVITY,
+ .len = sizeof(struct il_sensitivity_cmd),
+ .flags = CMD_ASYNC,
+ .data = &cmd,
+ };
+
+ data = &(il->sensitivity_data);
+
+ memset(&cmd, 0, sizeof(cmd));
+
+ il4965_prepare_legacy_sensitivity_tbl(il, data, &cmd.table[0]);
+
+ /* Update uCode's "work" table, and copy it to DSP */
+ cmd.control = C_SENSITIVITY_CONTROL_WORK_TBL;
+
+ /* Don't send command to uCode if nothing has changed */
+ if (!memcmp
+ (&cmd.table[0], &(il->sensitivity_tbl[0]),
+ sizeof(u16) * HD_TBL_SIZE)) {
+ D_CALIB("No change in C_SENSITIVITY\n");
+ return 0;
+ }
+
+ /* Copy table for comparison next time */
+ memcpy(&(il->sensitivity_tbl[0]), &(cmd.table[0]),
+ sizeof(u16) * HD_TBL_SIZE);
+
+ return il_send_cmd(il, &cmd_out);
+}
+
+void
+il4965_init_sensitivity(struct il_priv *il)
+{
+ int ret = 0;
+ int i;
+ struct il_sensitivity_data *data = NULL;
+ const struct il_sensitivity_ranges *ranges = il->hw_params.sens;
+
+ if (il->disable_sens_cal)
+ return;
+
+ D_CALIB("Start il4965_init_sensitivity\n");
+
+ /* Clear driver's sensitivity algo data */
+ data = &(il->sensitivity_data);
+
+ if (ranges == NULL)
+ return;
+
+ memset(data, 0, sizeof(struct il_sensitivity_data));
+
+ data->num_in_cck_no_fa = 0;
+ data->nrg_curr_state = IL_FA_TOO_MANY;
+ data->nrg_prev_state = IL_FA_TOO_MANY;
+ data->nrg_silence_ref = 0;
+ data->nrg_silence_idx = 0;
+ data->nrg_energy_idx = 0;
+
+ for (i = 0; i < 10; i++)
+ data->nrg_value[i] = 0;
+
+ for (i = 0; i < NRG_NUM_PREV_STAT_L; i++)
+ data->nrg_silence_rssi[i] = 0;
+
+ data->auto_corr_ofdm = ranges->auto_corr_min_ofdm;
+ data->auto_corr_ofdm_mrc = ranges->auto_corr_min_ofdm_mrc;
+ data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1;
+ data->auto_corr_ofdm_mrc_x1 = ranges->auto_corr_min_ofdm_mrc_x1;
+ data->auto_corr_cck = AUTO_CORR_CCK_MIN_VAL_DEF;
+ data->auto_corr_cck_mrc = ranges->auto_corr_min_cck_mrc;
+ data->nrg_th_cck = ranges->nrg_th_cck;
+ data->nrg_th_ofdm = ranges->nrg_th_ofdm;
+ data->barker_corr_th_min = ranges->barker_corr_th_min;
+ data->barker_corr_th_min_mrc = ranges->barker_corr_th_min_mrc;
+ data->nrg_th_cca = ranges->nrg_th_cca;
+
+ data->last_bad_plcp_cnt_ofdm = 0;
+ data->last_fa_cnt_ofdm = 0;
+ data->last_bad_plcp_cnt_cck = 0;
+ data->last_fa_cnt_cck = 0;
+
+ ret |= il4965_sensitivity_write(il);
+ D_CALIB("<<return 0x%X\n", ret);
+}
+
+void
+il4965_sensitivity_calibration(struct il_priv *il, void *resp)
+{
+ u32 rx_enable_time;
+ u32 fa_cck;
+ u32 fa_ofdm;
+ u32 bad_plcp_cck;
+ u32 bad_plcp_ofdm;
+ u32 norm_fa_ofdm;
+ u32 norm_fa_cck;
+ struct il_sensitivity_data *data = NULL;
+ struct stats_rx_non_phy *rx_info;
+ struct stats_rx_phy *ofdm, *cck;
+ unsigned long flags;
+ struct stats_general_data statis;
+
+ if (il->disable_sens_cal)
+ return;
+
+ data = &(il->sensitivity_data);
+
+ if (!il_is_any_associated(il)) {
+ D_CALIB("<< - not associated\n");
+ return;
+ }
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ rx_info = &(((struct il_notif_stats *)resp)->rx.general);
+ ofdm = &(((struct il_notif_stats *)resp)->rx.ofdm);
+ cck = &(((struct il_notif_stats *)resp)->rx.cck);
+
+ if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
+ D_CALIB("<< invalid data.\n");
+ spin_unlock_irqrestore(&il->lock, flags);
+ return;
+ }
+
+ /* Extract Statistics: */
+ rx_enable_time = le32_to_cpu(rx_info->channel_load);
+ fa_cck = le32_to_cpu(cck->false_alarm_cnt);
+ fa_ofdm = le32_to_cpu(ofdm->false_alarm_cnt);
+ bad_plcp_cck = le32_to_cpu(cck->plcp_err);
+ bad_plcp_ofdm = le32_to_cpu(ofdm->plcp_err);
+
+ statis.beacon_silence_rssi_a =
+ le32_to_cpu(rx_info->beacon_silence_rssi_a);
+ statis.beacon_silence_rssi_b =
+ le32_to_cpu(rx_info->beacon_silence_rssi_b);
+ statis.beacon_silence_rssi_c =
+ le32_to_cpu(rx_info->beacon_silence_rssi_c);
+ statis.beacon_energy_a = le32_to_cpu(rx_info->beacon_energy_a);
+ statis.beacon_energy_b = le32_to_cpu(rx_info->beacon_energy_b);
+ statis.beacon_energy_c = le32_to_cpu(rx_info->beacon_energy_c);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ D_CALIB("rx_enable_time = %u usecs\n", rx_enable_time);
+
+ if (!rx_enable_time) {
+ D_CALIB("<< RX Enable Time == 0!\n");
+ return;
+ }
+
+ /* These stats increase monotonically, and do not reset
+ * at each beacon. Calculate difference from last value, or just
+ * use the new stats value if it has reset or wrapped around. */
+ if (data->last_bad_plcp_cnt_cck > bad_plcp_cck)
+ data->last_bad_plcp_cnt_cck = bad_plcp_cck;
+ else {
+ bad_plcp_cck -= data->last_bad_plcp_cnt_cck;
+ data->last_bad_plcp_cnt_cck += bad_plcp_cck;
+ }
+
+ if (data->last_bad_plcp_cnt_ofdm > bad_plcp_ofdm)
+ data->last_bad_plcp_cnt_ofdm = bad_plcp_ofdm;
+ else {
+ bad_plcp_ofdm -= data->last_bad_plcp_cnt_ofdm;
+ data->last_bad_plcp_cnt_ofdm += bad_plcp_ofdm;
+ }
+
+ if (data->last_fa_cnt_ofdm > fa_ofdm)
+ data->last_fa_cnt_ofdm = fa_ofdm;
+ else {
+ fa_ofdm -= data->last_fa_cnt_ofdm;
+ data->last_fa_cnt_ofdm += fa_ofdm;
+ }
+
+ if (data->last_fa_cnt_cck > fa_cck)
+ data->last_fa_cnt_cck = fa_cck;
+ else {
+ fa_cck -= data->last_fa_cnt_cck;
+ data->last_fa_cnt_cck += fa_cck;
+ }
+
+ /* Total aborted signal locks */
+ norm_fa_ofdm = fa_ofdm + bad_plcp_ofdm;
+ norm_fa_cck = fa_cck + bad_plcp_cck;
+
+ D_CALIB("cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck,
+ bad_plcp_cck, fa_ofdm, bad_plcp_ofdm);
+
+ il4965_sens_auto_corr_ofdm(il, norm_fa_ofdm, rx_enable_time);
+ il4965_sens_energy_cck(il, norm_fa_cck, rx_enable_time, &statis);
+
+ il4965_sensitivity_write(il);
+}
+
+static inline u8
+il4965_find_first_chain(u8 mask)
+{
+ if (mask & ANT_A)
+ return CHAIN_A;
+ if (mask & ANT_B)
+ return CHAIN_B;
+ return CHAIN_C;
+}
+
+/**
+ * Run disconnected antenna algorithm to find out which antennas are
+ * disconnected.
+ */
+static void
+il4965_find_disconn_antenna(struct il_priv *il, u32 * average_sig,
+ struct il_chain_noise_data *data)
+{
+ u32 active_chains = 0;
+ u32 max_average_sig;
+ u16 max_average_sig_antenna_i;
+ u8 num_tx_chains;
+ u8 first_chain;
+ u16 i = 0;
+
+ average_sig[0] =
+ data->chain_signal_a /
+ il->cfg->base_params->chain_noise_num_beacons;
+ average_sig[1] =
+ data->chain_signal_b /
+ il->cfg->base_params->chain_noise_num_beacons;
+ average_sig[2] =
+ data->chain_signal_c /
+ il->cfg->base_params->chain_noise_num_beacons;
+
+ if (average_sig[0] >= average_sig[1]) {
+ max_average_sig = average_sig[0];
+ max_average_sig_antenna_i = 0;
+ active_chains = (1 << max_average_sig_antenna_i);
+ } else {
+ max_average_sig = average_sig[1];
+ max_average_sig_antenna_i = 1;
+ active_chains = (1 << max_average_sig_antenna_i);
+ }
+
+ if (average_sig[2] >= max_average_sig) {
+ max_average_sig = average_sig[2];
+ max_average_sig_antenna_i = 2;
+ active_chains = (1 << max_average_sig_antenna_i);
+ }
+
+ D_CALIB("average_sig: a %d b %d c %d\n", average_sig[0], average_sig[1],
+ average_sig[2]);
+ D_CALIB("max_average_sig = %d, antenna %d\n", max_average_sig,
+ max_average_sig_antenna_i);
+
+ /* Compare signal strengths for all 3 receivers. */
+ for (i = 0; i < NUM_RX_CHAINS; i++) {
+ if (i != max_average_sig_antenna_i) {
+ s32 rssi_delta = (max_average_sig - average_sig[i]);
+
+ /* If signal is very weak, compared with
+ * strongest, mark it as disconnected. */
+ if (rssi_delta > MAXIMUM_ALLOWED_PATHLOSS)
+ data->disconn_array[i] = 1;
+ else
+ active_chains |= (1 << i);
+ D_CALIB("i = %d rssiDelta = %d "
+ "disconn_array[i] = %d\n", i, rssi_delta,
+ data->disconn_array[i]);
+ }
+ }
+
+ /*
+ * The above algorithm sometimes fails when the ucode
+ * reports 0 for all chains. It's not clear why that
+ * happens to start with, but it is then causing trouble
+ * because this can make us enable more chains than the
+ * hardware really has.
+ *
+ * To be safe, simply mask out any chains that we know
+ * are not on the device.
+ */
+ active_chains &= il->hw_params.valid_rx_ant;
+
+ num_tx_chains = 0;
+ for (i = 0; i < NUM_RX_CHAINS; i++) {
+ /* loops on all the bits of
+ * il->hw_setting.valid_tx_ant */
+ u8 ant_msk = (1 << i);
+ if (!(il->hw_params.valid_tx_ant & ant_msk))
+ continue;
+
+ num_tx_chains++;
+ if (data->disconn_array[i] == 0)
+ /* there is a Tx antenna connected */
+ break;
+ if (num_tx_chains == il->hw_params.tx_chains_num &&
+ data->disconn_array[i]) {
+ /*
+ * If all chains are disconnected
+ * connect the first valid tx chain
+ */
+ first_chain =
+ il4965_find_first_chain(il->cfg->valid_tx_ant);
+ data->disconn_array[first_chain] = 0;
+ active_chains |= BIT(first_chain);
+ D_CALIB("All Tx chains are disconnected"
+ "- declare %d as connected\n", first_chain);
+ break;
+ }
+ }
+
+ if (active_chains != il->hw_params.valid_rx_ant &&
+ active_chains != il->chain_noise_data.active_chains)
+ D_CALIB("Detected that not all antennas are connected! "
+ "Connected: %#x, valid: %#x.\n", active_chains,
+ il->hw_params.valid_rx_ant);
+
+ /* Save for use within RXON, TX, SCAN commands, etc. */
+ data->active_chains = active_chains;
+ D_CALIB("active_chains (bitwise) = 0x%x\n", active_chains);
+}
+
+static void
+il4965_gain_computation(struct il_priv *il, u32 * average_noise,
+ u16 min_average_noise_antenna_i, u32 min_average_noise,
+ u8 default_chain)
+{
+ int i, ret;
+ struct il_chain_noise_data *data = &il->chain_noise_data;
+
+ data->delta_gain_code[min_average_noise_antenna_i] = 0;
+
+ for (i = default_chain; i < NUM_RX_CHAINS; i++) {
+ s32 delta_g = 0;
+
+ if (!data->disconn_array[i] &&
+ data->delta_gain_code[i] ==
+ CHAIN_NOISE_DELTA_GAIN_INIT_VAL) {
+ delta_g = average_noise[i] - min_average_noise;
+ data->delta_gain_code[i] = (u8) ((delta_g * 10) / 15);
+ data->delta_gain_code[i] =
+ min(data->delta_gain_code[i],
+ (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
+
+ data->delta_gain_code[i] =
+ (data->delta_gain_code[i] | (1 << 2));
+ } else {
+ data->delta_gain_code[i] = 0;
+ }
+ }
+ D_CALIB("delta_gain_codes: a %d b %d c %d\n", data->delta_gain_code[0],
+ data->delta_gain_code[1], data->delta_gain_code[2]);
+
+ /* Differential gain gets sent to uCode only once */
+ if (!data->radio_write) {
+ struct il_calib_diff_gain_cmd cmd;
+ data->radio_write = 1;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.hdr.op_code = IL_PHY_CALIBRATE_DIFF_GAIN_CMD;
+ cmd.diff_gain_a = data->delta_gain_code[0];
+ cmd.diff_gain_b = data->delta_gain_code[1];
+ cmd.diff_gain_c = data->delta_gain_code[2];
+ ret = il_send_cmd_pdu(il, C_PHY_CALIBRATION, sizeof(cmd), &cmd);
+ if (ret)
+ D_CALIB("fail sending cmd " "C_PHY_CALIBRATION\n");
+
+ /* TODO we might want recalculate
+ * rx_chain in rxon cmd */
+
+ /* Mark so we run this algo only once! */
+ data->state = IL_CHAIN_NOISE_CALIBRATED;
+ }
+}
+
+/*
+ * Accumulate 16 beacons of signal and noise stats for each of
+ * 3 receivers/antennas/rx-chains, then figure out:
+ * 1) Which antennas are connected.
+ * 2) Differential rx gain settings to balance the 3 receivers.
+ */
+void
+il4965_chain_noise_calibration(struct il_priv *il, void *stat_resp)
+{
+ struct il_chain_noise_data *data = NULL;
+
+ u32 chain_noise_a;
+ u32 chain_noise_b;
+ u32 chain_noise_c;
+ u32 chain_sig_a;
+ u32 chain_sig_b;
+ u32 chain_sig_c;
+ u32 average_sig[NUM_RX_CHAINS] = { INITIALIZATION_VALUE };
+ u32 average_noise[NUM_RX_CHAINS] = { INITIALIZATION_VALUE };
+ u32 min_average_noise = MIN_AVERAGE_NOISE_MAX_VALUE;
+ u16 min_average_noise_antenna_i = INITIALIZATION_VALUE;
+ u16 i = 0;
+ u16 rxon_chnum = INITIALIZATION_VALUE;
+ u16 stat_chnum = INITIALIZATION_VALUE;
+ u8 rxon_band24;
+ u8 stat_band24;
+ unsigned long flags;
+ struct stats_rx_non_phy *rx_info;
+
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (il->disable_chain_noise_cal)
+ return;
+
+ data = &(il->chain_noise_data);
+
+ /*
+ * Accumulate just the first "chain_noise_num_beacons" after
+ * the first association, then we're done forever.
+ */
+ if (data->state != IL_CHAIN_NOISE_ACCUMULATE) {
+ if (data->state == IL_CHAIN_NOISE_ALIVE)
+ D_CALIB("Wait for noise calib reset\n");
+ return;
+ }
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ rx_info = &(((struct il_notif_stats *)stat_resp)->rx.general);
+
+ if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
+ D_CALIB(" << Interference data unavailable\n");
+ spin_unlock_irqrestore(&il->lock, flags);
+ return;
+ }
+
+ rxon_band24 = !!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK);
+ rxon_chnum = le16_to_cpu(ctx->staging.channel);
+
+ stat_band24 =
+ !!(((struct il_notif_stats *)stat_resp)->
+ flag & STATS_REPLY_FLG_BAND_24G_MSK);
+ stat_chnum =
+ le32_to_cpu(((struct il_notif_stats *)stat_resp)->flag) >> 16;
+
+ /* Make sure we accumulate data for just the associated channel
+ * (even if scanning). */
+ if (rxon_chnum != stat_chnum || rxon_band24 != stat_band24) {
+ D_CALIB("Stats not from chan=%d, band24=%d\n", rxon_chnum,
+ rxon_band24);
+ spin_unlock_irqrestore(&il->lock, flags);
+ return;
+ }
+
+ /*
+ * Accumulate beacon stats values across
+ * "chain_noise_num_beacons"
+ */
+ chain_noise_a =
+ le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
+ chain_noise_b =
+ le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
+ chain_noise_c =
+ le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
+
+ chain_sig_a = le32_to_cpu(rx_info->beacon_rssi_a) & IN_BAND_FILTER;
+ chain_sig_b = le32_to_cpu(rx_info->beacon_rssi_b) & IN_BAND_FILTER;
+ chain_sig_c = le32_to_cpu(rx_info->beacon_rssi_c) & IN_BAND_FILTER;
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ data->beacon_count++;
+
+ data->chain_noise_a = (chain_noise_a + data->chain_noise_a);
+ data->chain_noise_b = (chain_noise_b + data->chain_noise_b);
+ data->chain_noise_c = (chain_noise_c + data->chain_noise_c);
+
+ data->chain_signal_a = (chain_sig_a + data->chain_signal_a);
+ data->chain_signal_b = (chain_sig_b + data->chain_signal_b);
+ data->chain_signal_c = (chain_sig_c + data->chain_signal_c);
+
+ D_CALIB("chan=%d, band24=%d, beacon=%d\n", rxon_chnum, rxon_band24,
+ data->beacon_count);
+ D_CALIB("chain_sig: a %d b %d c %d\n", chain_sig_a, chain_sig_b,
+ chain_sig_c);
+ D_CALIB("chain_noise: a %d b %d c %d\n", chain_noise_a, chain_noise_b,
+ chain_noise_c);
+
+ /* If this is the "chain_noise_num_beacons", determine:
+ * 1) Disconnected antennas (using signal strengths)
+ * 2) Differential gain (using silence noise) to balance receivers */
+ if (data->beacon_count != il->cfg->base_params->chain_noise_num_beacons)
+ return;
+
+ /* Analyze signal for disconnected antenna */
+ il4965_find_disconn_antenna(il, average_sig, data);
+
+ /* Analyze noise for rx balance */
+ average_noise[0] =
+ data->chain_noise_a / il->cfg->base_params->chain_noise_num_beacons;
+ average_noise[1] =
+ data->chain_noise_b / il->cfg->base_params->chain_noise_num_beacons;
+ average_noise[2] =
+ data->chain_noise_c / il->cfg->base_params->chain_noise_num_beacons;
+
+ for (i = 0; i < NUM_RX_CHAINS; i++) {
+ if (!data->disconn_array[i] &&
+ average_noise[i] <= min_average_noise) {
+ /* This means that chain i is active and has
+ * lower noise values so far: */
+ min_average_noise = average_noise[i];
+ min_average_noise_antenna_i = i;
+ }
+ }
+
+ D_CALIB("average_noise: a %d b %d c %d\n", average_noise[0],
+ average_noise[1], average_noise[2]);
+
+ D_CALIB("min_average_noise = %d, antenna %d\n", min_average_noise,
+ min_average_noise_antenna_i);
+
+ il4965_gain_computation(il, average_noise, min_average_noise_antenna_i,
+ min_average_noise,
+ il4965_find_first_chain(il->cfg->valid_rx_ant));
+
+ /* Some power changes may have been made during the calibration.
+ * Update and commit the RXON
+ */
+ if (il->cfg->ops->lib->update_chain_flags)
+ il->cfg->ops->lib->update_chain_flags(il);
+
+ data->state = IL_CHAIN_NOISE_DONE;
+ il_power_update_mode(il, false);
+}
+
+void
+il4965_reset_run_time_calib(struct il_priv *il)
+{
+ int i;
+ memset(&(il->sensitivity_data), 0, sizeof(struct il_sensitivity_data));
+ memset(&(il->chain_noise_data), 0, sizeof(struct il_chain_noise_data));
+ for (i = 0; i < NUM_RX_CHAINS; i++)
+ il->chain_noise_data.delta_gain_code[i] =
+ CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
+
+ /* Ask for stats now, the uCode will send notification
+ * periodically after association */
+ il_send_stats_request(il, CMD_ASYNC, true);
+}
diff --git a/drivers/net/wireless/iwlegacy/4965-debug.c b/drivers/net/wireless/iwlegacy/4965-debug.c
new file mode 100644
index 0000000..98ec39f
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965-debug.c
@@ -0,0 +1,746 @@
+/******************************************************************************
+*
+* GPL LICENSE SUMMARY
+*
+* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of version 2 of the GNU General Public License as
+* published by the Free Software Foundation.
+*
+* This program is distributed in the hope that it will be useful, but
+* WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+* General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+* USA
+*
+* The full GNU General Public License is included in this distribution
+* in the file called LICENSE.GPL.
+*
+* Contact Information:
+* Intel Linux Wireless <ilw@linux.intel.com>
+* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+*****************************************************************************/
+#include "common.h"
+#include "4965.h"
+
+static const char *fmt_value = " %-30s %10u\n";
+static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
+static const char *fmt_header =
+ "%-32s current cumulative delta max\n";
+
+static int
+il4965_stats_flag(struct il_priv *il, char *buf, int bufsz)
+{
+ int p = 0;
+ u32 flag;
+
+ flag = le32_to_cpu(il->_4965.stats.flag);
+
+ p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
+ if (flag & UCODE_STATS_CLEAR_MSK)
+ p += scnprintf(buf + p, bufsz - p,
+ "\tStatistics have been cleared\n");
+ p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
+ (flag & UCODE_STATS_FREQUENCY_MSK) ? "2.4 GHz" :
+ "5.2 GHz");
+ p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
+ (flag & UCODE_STATS_NARROW_BAND_MSK) ? "enabled" :
+ "disabled");
+
+ return p;
+}
+
+ssize_t
+il4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz =
+ sizeof(struct stats_rx_phy) * 40 +
+ sizeof(struct stats_rx_non_phy) * 40 +
+ sizeof(struct stats_rx_ht_phy) * 40 + 400;
+ ssize_t ret;
+ struct stats_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
+ struct stats_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
+ struct stats_rx_non_phy *general, *accum_general;
+ struct stats_rx_non_phy *delta_general, *max_general;
+ struct stats_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /*
+ * the statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ ofdm = &il->_4965.stats.rx.ofdm;
+ cck = &il->_4965.stats.rx.cck;
+ general = &il->_4965.stats.rx.general;
+ ht = &il->_4965.stats.rx.ofdm_ht;
+ accum_ofdm = &il->_4965.accum_stats.rx.ofdm;
+ accum_cck = &il->_4965.accum_stats.rx.cck;
+ accum_general = &il->_4965.accum_stats.rx.general;
+ accum_ht = &il->_4965.accum_stats.rx.ofdm_ht;
+ delta_ofdm = &il->_4965.delta_stats.rx.ofdm;
+ delta_cck = &il->_4965.delta_stats.rx.cck;
+ delta_general = &il->_4965.delta_stats.rx.general;
+ delta_ht = &il->_4965.delta_stats.rx.ofdm_ht;
+ max_ofdm = &il->_4965.max_delta.rx.ofdm;
+ max_cck = &il->_4965.max_delta.rx.cck;
+ max_general = &il->_4965.max_delta.rx.general;
+ max_ht = &il->_4965.max_delta.rx.ofdm_ht;
+
+ pos += il4965_stats_flag(il, buf, bufsz);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_header,
+ "Statistics_Rx - OFDM:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:",
+ le32_to_cpu(ofdm->ina_cnt), accum_ofdm->ina_cnt,
+ delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:",
+ le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
+ delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:",
+ le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
+ delta_ofdm->plcp_err, max_ofdm->plcp_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:",
+ le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
+ delta_ofdm->crc32_err, max_ofdm->crc32_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:",
+ le32_to_cpu(ofdm->overrun_err), accum_ofdm->overrun_err,
+ delta_ofdm->overrun_err, max_ofdm->overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:",
+ le32_to_cpu(ofdm->early_overrun_err),
+ accum_ofdm->early_overrun_err,
+ delta_ofdm->early_overrun_err,
+ max_ofdm->early_overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:",
+ le32_to_cpu(ofdm->crc32_good), accum_ofdm->crc32_good,
+ delta_ofdm->crc32_good, max_ofdm->crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:",
+ le32_to_cpu(ofdm->false_alarm_cnt),
+ accum_ofdm->false_alarm_cnt, delta_ofdm->false_alarm_cnt,
+ max_ofdm->false_alarm_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:",
+ le32_to_cpu(ofdm->fina_sync_err_cnt),
+ accum_ofdm->fina_sync_err_cnt,
+ delta_ofdm->fina_sync_err_cnt,
+ max_ofdm->fina_sync_err_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:",
+ le32_to_cpu(ofdm->sfd_timeout), accum_ofdm->sfd_timeout,
+ delta_ofdm->sfd_timeout, max_ofdm->sfd_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:",
+ le32_to_cpu(ofdm->fina_timeout), accum_ofdm->fina_timeout,
+ delta_ofdm->fina_timeout, max_ofdm->fina_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:",
+ le32_to_cpu(ofdm->unresponded_rts),
+ accum_ofdm->unresponded_rts, delta_ofdm->unresponded_rts,
+ max_ofdm->unresponded_rts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:",
+ le32_to_cpu(ofdm->rxe_frame_limit_overrun),
+ accum_ofdm->rxe_frame_limit_overrun,
+ delta_ofdm->rxe_frame_limit_overrun,
+ max_ofdm->rxe_frame_limit_overrun);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:",
+ le32_to_cpu(ofdm->sent_ack_cnt), accum_ofdm->sent_ack_cnt,
+ delta_ofdm->sent_ack_cnt, max_ofdm->sent_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:",
+ le32_to_cpu(ofdm->sent_cts_cnt), accum_ofdm->sent_cts_cnt,
+ delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:",
+ le32_to_cpu(ofdm->sent_ba_rsp_cnt),
+ accum_ofdm->sent_ba_rsp_cnt, delta_ofdm->sent_ba_rsp_cnt,
+ max_ofdm->sent_ba_rsp_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:",
+ le32_to_cpu(ofdm->dsp_self_kill),
+ accum_ofdm->dsp_self_kill, delta_ofdm->dsp_self_kill,
+ max_ofdm->dsp_self_kill);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:",
+ le32_to_cpu(ofdm->mh_format_err),
+ accum_ofdm->mh_format_err, delta_ofdm->mh_format_err,
+ max_ofdm->mh_format_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "re_acq_main_rssi_sum:",
+ le32_to_cpu(ofdm->re_acq_main_rssi_sum),
+ accum_ofdm->re_acq_main_rssi_sum,
+ delta_ofdm->re_acq_main_rssi_sum,
+ max_ofdm->re_acq_main_rssi_sum);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_header,
+ "Statistics_Rx - CCK:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "ina_cnt:",
+ le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
+ delta_cck->ina_cnt, max_cck->ina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_cnt:",
+ le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
+ delta_cck->fina_cnt, max_cck->fina_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:",
+ le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
+ delta_cck->plcp_err, max_cck->plcp_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:",
+ le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
+ delta_cck->crc32_err, max_cck->crc32_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:",
+ le32_to_cpu(cck->overrun_err), accum_cck->overrun_err,
+ delta_cck->overrun_err, max_cck->overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:",
+ le32_to_cpu(cck->early_overrun_err),
+ accum_cck->early_overrun_err,
+ delta_cck->early_overrun_err, max_cck->early_overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:",
+ le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
+ delta_cck->crc32_good, max_cck->crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "false_alarm_cnt:",
+ le32_to_cpu(cck->false_alarm_cnt),
+ accum_cck->false_alarm_cnt, delta_cck->false_alarm_cnt,
+ max_cck->false_alarm_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_sync_err_cnt:",
+ le32_to_cpu(cck->fina_sync_err_cnt),
+ accum_cck->fina_sync_err_cnt,
+ delta_cck->fina_sync_err_cnt, max_cck->fina_sync_err_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sfd_timeout:",
+ le32_to_cpu(cck->sfd_timeout), accum_cck->sfd_timeout,
+ delta_cck->sfd_timeout, max_cck->sfd_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "fina_timeout:",
+ le32_to_cpu(cck->fina_timeout), accum_cck->fina_timeout,
+ delta_cck->fina_timeout, max_cck->fina_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "unresponded_rts:",
+ le32_to_cpu(cck->unresponded_rts),
+ accum_cck->unresponded_rts, delta_cck->unresponded_rts,
+ max_cck->unresponded_rts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "rxe_frame_lmt_ovrun:",
+ le32_to_cpu(cck->rxe_frame_limit_overrun),
+ accum_cck->rxe_frame_limit_overrun,
+ delta_cck->rxe_frame_limit_overrun,
+ max_cck->rxe_frame_limit_overrun);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ack_cnt:",
+ le32_to_cpu(cck->sent_ack_cnt), accum_cck->sent_ack_cnt,
+ delta_cck->sent_ack_cnt, max_cck->sent_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_cts_cnt:",
+ le32_to_cpu(cck->sent_cts_cnt), accum_cck->sent_cts_cnt,
+ delta_cck->sent_cts_cnt, max_cck->sent_cts_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sent_ba_rsp_cnt:",
+ le32_to_cpu(cck->sent_ba_rsp_cnt),
+ accum_cck->sent_ba_rsp_cnt, delta_cck->sent_ba_rsp_cnt,
+ max_cck->sent_ba_rsp_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_self_kill:",
+ le32_to_cpu(cck->dsp_self_kill), accum_cck->dsp_self_kill,
+ delta_cck->dsp_self_kill, max_cck->dsp_self_kill);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:",
+ le32_to_cpu(cck->mh_format_err), accum_cck->mh_format_err,
+ delta_cck->mh_format_err, max_cck->mh_format_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "re_acq_main_rssi_sum:",
+ le32_to_cpu(cck->re_acq_main_rssi_sum),
+ accum_cck->re_acq_main_rssi_sum,
+ delta_cck->re_acq_main_rssi_sum,
+ max_cck->re_acq_main_rssi_sum);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_header,
+ "Statistics_Rx - GENERAL:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_cts:",
+ le32_to_cpu(general->bogus_cts), accum_general->bogus_cts,
+ delta_general->bogus_cts, max_general->bogus_cts);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "bogus_ack:",
+ le32_to_cpu(general->bogus_ack), accum_general->bogus_ack,
+ delta_general->bogus_ack, max_general->bogus_ack);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "non_bssid_frames:",
+ le32_to_cpu(general->non_bssid_frames),
+ accum_general->non_bssid_frames,
+ delta_general->non_bssid_frames,
+ max_general->non_bssid_frames);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "filtered_frames:",
+ le32_to_cpu(general->filtered_frames),
+ accum_general->filtered_frames,
+ delta_general->filtered_frames,
+ max_general->filtered_frames);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "non_channel_beacons:",
+ le32_to_cpu(general->non_channel_beacons),
+ accum_general->non_channel_beacons,
+ delta_general->non_channel_beacons,
+ max_general->non_channel_beacons);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_beacons:",
+ le32_to_cpu(general->channel_beacons),
+ accum_general->channel_beacons,
+ delta_general->channel_beacons,
+ max_general->channel_beacons);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "num_missed_bcon:",
+ le32_to_cpu(general->num_missed_bcon),
+ accum_general->num_missed_bcon,
+ delta_general->num_missed_bcon,
+ max_general->num_missed_bcon);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "adc_rx_saturation_time:",
+ le32_to_cpu(general->adc_rx_saturation_time),
+ accum_general->adc_rx_saturation_time,
+ delta_general->adc_rx_saturation_time,
+ max_general->adc_rx_saturation_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "ina_detect_search_tm:",
+ le32_to_cpu(general->ina_detection_search_time),
+ accum_general->ina_detection_search_time,
+ delta_general->ina_detection_search_time,
+ max_general->ina_detection_search_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "beacon_silence_rssi_a:",
+ le32_to_cpu(general->beacon_silence_rssi_a),
+ accum_general->beacon_silence_rssi_a,
+ delta_general->beacon_silence_rssi_a,
+ max_general->beacon_silence_rssi_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "beacon_silence_rssi_b:",
+ le32_to_cpu(general->beacon_silence_rssi_b),
+ accum_general->beacon_silence_rssi_b,
+ delta_general->beacon_silence_rssi_b,
+ max_general->beacon_silence_rssi_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "beacon_silence_rssi_c:",
+ le32_to_cpu(general->beacon_silence_rssi_c),
+ accum_general->beacon_silence_rssi_c,
+ delta_general->beacon_silence_rssi_c,
+ max_general->beacon_silence_rssi_c);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "interference_data_flag:",
+ le32_to_cpu(general->interference_data_flag),
+ accum_general->interference_data_flag,
+ delta_general->interference_data_flag,
+ max_general->interference_data_flag);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "channel_load:",
+ le32_to_cpu(general->channel_load),
+ accum_general->channel_load, delta_general->channel_load,
+ max_general->channel_load);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "dsp_false_alarms:",
+ le32_to_cpu(general->dsp_false_alarms),
+ accum_general->dsp_false_alarms,
+ delta_general->dsp_false_alarms,
+ max_general->dsp_false_alarms);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_a:",
+ le32_to_cpu(general->beacon_rssi_a),
+ accum_general->beacon_rssi_a,
+ delta_general->beacon_rssi_a, max_general->beacon_rssi_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_b:",
+ le32_to_cpu(general->beacon_rssi_b),
+ accum_general->beacon_rssi_b,
+ delta_general->beacon_rssi_b, max_general->beacon_rssi_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_rssi_c:",
+ le32_to_cpu(general->beacon_rssi_c),
+ accum_general->beacon_rssi_c,
+ delta_general->beacon_rssi_c, max_general->beacon_rssi_c);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_a:",
+ le32_to_cpu(general->beacon_energy_a),
+ accum_general->beacon_energy_a,
+ delta_general->beacon_energy_a,
+ max_general->beacon_energy_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_b:",
+ le32_to_cpu(general->beacon_energy_b),
+ accum_general->beacon_energy_b,
+ delta_general->beacon_energy_b,
+ max_general->beacon_energy_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "beacon_energy_c:",
+ le32_to_cpu(general->beacon_energy_c),
+ accum_general->beacon_energy_c,
+ delta_general->beacon_energy_c,
+ max_general->beacon_energy_c);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_header,
+ "Statistics_Rx - OFDM_HT:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "plcp_err:",
+ le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
+ delta_ht->plcp_err, max_ht->plcp_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "overrun_err:",
+ le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
+ delta_ht->overrun_err, max_ht->overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "early_overrun_err:",
+ le32_to_cpu(ht->early_overrun_err),
+ accum_ht->early_overrun_err, delta_ht->early_overrun_err,
+ max_ht->early_overrun_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_good:",
+ le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
+ delta_ht->crc32_good, max_ht->crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "crc32_err:",
+ le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
+ delta_ht->crc32_err, max_ht->crc32_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "mh_format_err:",
+ le32_to_cpu(ht->mh_format_err), accum_ht->mh_format_err,
+ delta_ht->mh_format_err, max_ht->mh_format_err);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_crc32_good:",
+ le32_to_cpu(ht->agg_crc32_good), accum_ht->agg_crc32_good,
+ delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_mpdu_cnt:",
+ le32_to_cpu(ht->agg_mpdu_cnt), accum_ht->agg_mpdu_cnt,
+ delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg_cnt:",
+ le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
+ delta_ht->agg_cnt, max_ht->agg_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "unsupport_mcs:",
+ le32_to_cpu(ht->unsupport_mcs), accum_ht->unsupport_mcs,
+ delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+ssize_t
+il4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz = (sizeof(struct stats_tx) * 48) + 250;
+ ssize_t ret;
+ struct stats_tx *tx, *accum_tx, *delta_tx, *max_tx;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /* the statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ tx = &il->_4965.stats.tx;
+ accum_tx = &il->_4965.accum_stats.tx;
+ delta_tx = &il->_4965.delta_stats.tx;
+ max_tx = &il->_4965.max_delta.tx;
+
+ pos += il4965_stats_flag(il, buf, bufsz);
+ pos += scnprintf(buf + pos, bufsz - pos, fmt_header, "Statistics_Tx:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "preamble:",
+ le32_to_cpu(tx->preamble_cnt), accum_tx->preamble_cnt,
+ delta_tx->preamble_cnt, max_tx->preamble_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_detected_cnt:",
+ le32_to_cpu(tx->rx_detected_cnt),
+ accum_tx->rx_detected_cnt, delta_tx->rx_detected_cnt,
+ max_tx->rx_detected_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_defer_cnt:",
+ le32_to_cpu(tx->bt_prio_defer_cnt),
+ accum_tx->bt_prio_defer_cnt, delta_tx->bt_prio_defer_cnt,
+ max_tx->bt_prio_defer_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "bt_prio_kill_cnt:",
+ le32_to_cpu(tx->bt_prio_kill_cnt),
+ accum_tx->bt_prio_kill_cnt, delta_tx->bt_prio_kill_cnt,
+ max_tx->bt_prio_kill_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "few_bytes_cnt:",
+ le32_to_cpu(tx->few_bytes_cnt), accum_tx->few_bytes_cnt,
+ delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "cts_timeout:",
+ le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
+ delta_tx->cts_timeout, max_tx->cts_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "ack_timeout:",
+ le32_to_cpu(tx->ack_timeout), accum_tx->ack_timeout,
+ delta_tx->ack_timeout, max_tx->ack_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "expected_ack_cnt:",
+ le32_to_cpu(tx->expected_ack_cnt),
+ accum_tx->expected_ack_cnt, delta_tx->expected_ack_cnt,
+ max_tx->expected_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "actual_ack_cnt:",
+ le32_to_cpu(tx->actual_ack_cnt), accum_tx->actual_ack_cnt,
+ delta_tx->actual_ack_cnt, max_tx->actual_ack_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "dump_msdu_cnt:",
+ le32_to_cpu(tx->dump_msdu_cnt), accum_tx->dump_msdu_cnt,
+ delta_tx->dump_msdu_cnt, max_tx->dump_msdu_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "abort_nxt_frame_mismatch:",
+ le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
+ accum_tx->burst_abort_next_frame_mismatch_cnt,
+ delta_tx->burst_abort_next_frame_mismatch_cnt,
+ max_tx->burst_abort_next_frame_mismatch_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "abort_missing_nxt_frame:",
+ le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
+ accum_tx->burst_abort_missing_next_frame_cnt,
+ delta_tx->burst_abort_missing_next_frame_cnt,
+ max_tx->burst_abort_missing_next_frame_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "cts_timeout_collision:",
+ le32_to_cpu(tx->cts_timeout_collision),
+ accum_tx->cts_timeout_collision,
+ delta_tx->cts_timeout_collision,
+ max_tx->cts_timeout_collision);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "ack_ba_timeout_collision:",
+ le32_to_cpu(tx->ack_or_ba_timeout_collision),
+ accum_tx->ack_or_ba_timeout_collision,
+ delta_tx->ack_or_ba_timeout_collision,
+ max_tx->ack_or_ba_timeout_collision);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg ba_timeout:",
+ le32_to_cpu(tx->agg.ba_timeout), accum_tx->agg.ba_timeout,
+ delta_tx->agg.ba_timeout, max_tx->agg.ba_timeout);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "agg ba_resched_frames:",
+ le32_to_cpu(tx->agg.ba_reschedule_frames),
+ accum_tx->agg.ba_reschedule_frames,
+ delta_tx->agg.ba_reschedule_frames,
+ max_tx->agg.ba_reschedule_frames);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "agg scd_query_agg_frame:",
+ le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
+ accum_tx->agg.scd_query_agg_frame_cnt,
+ delta_tx->agg.scd_query_agg_frame_cnt,
+ max_tx->agg.scd_query_agg_frame_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "agg scd_query_no_agg:",
+ le32_to_cpu(tx->agg.scd_query_no_agg),
+ accum_tx->agg.scd_query_no_agg,
+ delta_tx->agg.scd_query_no_agg,
+ max_tx->agg.scd_query_no_agg);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg scd_query_agg:",
+ le32_to_cpu(tx->agg.scd_query_agg),
+ accum_tx->agg.scd_query_agg, delta_tx->agg.scd_query_agg,
+ max_tx->agg.scd_query_agg);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "agg scd_query_mismatch:",
+ le32_to_cpu(tx->agg.scd_query_mismatch),
+ accum_tx->agg.scd_query_mismatch,
+ delta_tx->agg.scd_query_mismatch,
+ max_tx->agg.scd_query_mismatch);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg frame_not_ready:",
+ le32_to_cpu(tx->agg.frame_not_ready),
+ accum_tx->agg.frame_not_ready,
+ delta_tx->agg.frame_not_ready,
+ max_tx->agg.frame_not_ready);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg underrun:",
+ le32_to_cpu(tx->agg.underrun), accum_tx->agg.underrun,
+ delta_tx->agg.underrun, max_tx->agg.underrun);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg bt_prio_kill:",
+ le32_to_cpu(tx->agg.bt_prio_kill),
+ accum_tx->agg.bt_prio_kill, delta_tx->agg.bt_prio_kill,
+ max_tx->agg.bt_prio_kill);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "agg rx_ba_rsp_cnt:",
+ le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
+ accum_tx->agg.rx_ba_rsp_cnt, delta_tx->agg.rx_ba_rsp_cnt,
+ max_tx->agg.rx_ba_rsp_cnt);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+ssize_t
+il4965_ucode_general_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char *buf;
+ int bufsz = sizeof(struct stats_general) * 10 + 300;
+ ssize_t ret;
+ struct stats_general_common *general, *accum_general;
+ struct stats_general_common *delta_general, *max_general;
+ struct stats_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
+ struct stats_div *div, *accum_div, *delta_div, *max_div;
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ /* the statistic information display here is based on
+ * the last stats notification from uCode
+ * might not reflect the current uCode activity
+ */
+ general = &il->_4965.stats.general.common;
+ dbg = &il->_4965.stats.general.common.dbg;
+ div = &il->_4965.stats.general.common.div;
+ accum_general = &il->_4965.accum_stats.general.common;
+ accum_dbg = &il->_4965.accum_stats.general.common.dbg;
+ accum_div = &il->_4965.accum_stats.general.common.div;
+ delta_general = &il->_4965.delta_stats.general.common;
+ max_general = &il->_4965.max_delta.general.common;
+ delta_dbg = &il->_4965.delta_stats.general.common.dbg;
+ max_dbg = &il->_4965.max_delta.general.common.dbg;
+ delta_div = &il->_4965.delta_stats.general.common.div;
+ max_div = &il->_4965.max_delta.general.common.div;
+
+ pos += il4965_stats_flag(il, buf, bufsz);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_header,
+ "Statistics_General:");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_value, "temperature:",
+ le32_to_cpu(general->temperature));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_value, "ttl_timestamp:",
+ le32_to_cpu(general->ttl_timestamp));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_check:",
+ le32_to_cpu(dbg->burst_check), accum_dbg->burst_check,
+ delta_dbg->burst_check, max_dbg->burst_check);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "burst_count:",
+ le32_to_cpu(dbg->burst_count), accum_dbg->burst_count,
+ delta_dbg->burst_count, max_dbg->burst_count);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table,
+ "wait_for_silence_timeout_count:",
+ le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
+ accum_dbg->wait_for_silence_timeout_cnt,
+ delta_dbg->wait_for_silence_timeout_cnt,
+ max_dbg->wait_for_silence_timeout_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "sleep_time:",
+ le32_to_cpu(general->sleep_time),
+ accum_general->sleep_time, delta_general->sleep_time,
+ max_general->sleep_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_out:",
+ le32_to_cpu(general->slots_out), accum_general->slots_out,
+ delta_general->slots_out, max_general->slots_out);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "slots_idle:",
+ le32_to_cpu(general->slots_idle),
+ accum_general->slots_idle, delta_general->slots_idle,
+ max_general->slots_idle);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_a:",
+ le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
+ delta_div->tx_on_a, max_div->tx_on_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "tx_on_b:",
+ le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
+ delta_div->tx_on_b, max_div->tx_on_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "exec_time:",
+ le32_to_cpu(div->exec_time), accum_div->exec_time,
+ delta_div->exec_time, max_div->exec_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "probe_time:",
+ le32_to_cpu(div->probe_time), accum_div->probe_time,
+ delta_div->probe_time, max_div->probe_time);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "rx_enable_counter:",
+ le32_to_cpu(general->rx_enable_counter),
+ accum_general->rx_enable_counter,
+ delta_general->rx_enable_counter,
+ max_general->rx_enable_counter);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, fmt_table, "num_of_sos_states:",
+ le32_to_cpu(general->num_of_sos_states),
+ accum_general->num_of_sos_states,
+ delta_general->num_of_sos_states,
+ max_general->num_of_sos_states);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
new file mode 100644
index 0000000..4aaef41
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -0,0 +1,6536 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * Portions of this file are derived from the ipw3945 project, as well
+ * as portions of the ieee80211 subsystem header files.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/pci-aspm.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <linux/firmware.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+
+#include <net/mac80211.h>
+
+#include <asm/div64.h>
+
+#define DRV_NAME "iwl4965"
+
+#include "common.h"
+#include "4965.h"
+
+/******************************************************************************
+ *
+ * module boiler plate
+ *
+ ******************************************************************************/
+
+/*
+ * module name, copyright, version, etc.
+ */
+#define DRV_DESCRIPTION "Intel(R) Wireless WiFi 4965 driver for Linux"
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+#define VD "d"
+#else
+#define VD
+#endif
+
+#define DRV_VERSION IWLWIFI_VERSION VD
+
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("iwl4965");
+
+void
+il4965_check_abort_status(struct il_priv *il, u8 frame_count, u32 status)
+{
+ if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) {
+ IL_ERR("Tx flush command to flush out all frames\n");
+ if (!test_bit(S_EXIT_PENDING, &il->status))
+ queue_work(il->workqueue, &il->tx_flush);
+ }
+}
+
+/*
+ * EEPROM
+ */
+struct il_mod_params il4965_mod_params = {
+ .amsdu_size_8K = 1,
+ .restart_fw = 1,
+ /* the rest are 0 by default */
+};
+
+void
+il4965_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ unsigned long flags;
+ int i;
+ spin_lock_irqsave(&rxq->lock, flags);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
+ /* In the reset function, these buffers may have been allocated
+ * to an SKB, so we need to unmap and free potential storage */
+ if (rxq->pool[i].page != NULL) {
+ pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ __il_free_pages(il, rxq->pool[i].page);
+ rxq->pool[i].page = NULL;
+ }
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+ }
+
+ for (i = 0; i < RX_QUEUE_SIZE; i++)
+ rxq->queue[i] = NULL;
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->write_actual = 0;
+ rxq->free_count = 0;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+}
+
+int
+il4965_rx_init(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ u32 rb_size;
+ const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */
+ u32 rb_timeout = 0;
+
+ if (il->cfg->mod_params->amsdu_size_8K)
+ rb_size = FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K;
+ else
+ rb_size = FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K;
+
+ /* Stop Rx DMA */
+ il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+
+ /* Reset driver's Rx queue write idx */
+ il_wr(il, FH49_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
+
+ /* Tell device where to find RBD circular buffer in DRAM */
+ il_wr(il, FH49_RSCSR_CHNL0_RBDCB_BASE_REG, (u32) (rxq->bd_dma >> 8));
+
+ /* Tell device where in DRAM to update its Rx status */
+ il_wr(il, FH49_RSCSR_CHNL0_STTS_WPTR_REG, rxq->rb_stts_dma >> 4);
+
+ /* Enable Rx DMA
+ * Direct rx interrupts to hosts
+ * Rx buffer size 4 or 8k
+ * RB timeout 0x10
+ * 256 RBDs
+ */
+ il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG,
+ FH49_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
+ FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
+ FH49_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK |
+ rb_size |
+ (rb_timeout << FH49_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS) |
+ (rfdnlog << FH49_RCSR_RX_CONFIG_RBDCB_SIZE_POS));
+
+ /* Set interrupt coalescing timer to default (2048 usecs) */
+ il_write8(il, CSR_INT_COALESCING, IL_HOST_INT_TIMEOUT_DEF);
+
+ return 0;
+}
+
+static void
+il4965_set_pwr_vmain(struct il_priv *il)
+{
+/*
+ * (for documentation purposes)
+ * to set power to V_AUX, do:
+
+ if (pci_pme_capable(il->pci_dev, PCI_D3cold))
+ il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+ */
+
+ il_set_bits_mask_prph(il, APMG_PS_CTRL_REG,
+ APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
+ ~APMG_PS_CTRL_MSK_PWR_SRC);
+}
+
+int
+il4965_hw_nic_init(struct il_priv *il)
+{
+ unsigned long flags;
+ struct il_rx_queue *rxq = &il->rxq;
+ int ret;
+
+ /* nic_init */
+ spin_lock_irqsave(&il->lock, flags);
+ il->cfg->ops->lib->apm_ops.init(il);
+
+ /* Set interrupt coalescing calibration timer to default (512 usecs) */
+ il_write8(il, CSR_INT_COALESCING, IL_HOST_INT_CALIB_TIMEOUT_DEF);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ il4965_set_pwr_vmain(il);
+
+ il->cfg->ops->lib->apm_ops.config(il);
+
+ /* Allocate the RX queue, or reset if it is already allocated */
+ if (!rxq->bd) {
+ ret = il_rx_queue_alloc(il);
+ if (ret) {
+ IL_ERR("Unable to initialize Rx queue\n");
+ return -ENOMEM;
+ }
+ } else
+ il4965_rx_queue_reset(il, rxq);
+
+ il4965_rx_replenish(il);
+
+ il4965_rx_init(il, rxq);
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ rxq->need_update = 1;
+ il_rx_queue_update_write_ptr(il, rxq);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /* Allocate or reset and init all Tx and Command queues */
+ if (!il->txq) {
+ ret = il4965_txq_ctx_alloc(il);
+ if (ret)
+ return ret;
+ } else
+ il4965_txq_ctx_reset(il);
+
+ set_bit(S_INIT, &il->status);
+
+ return 0;
+}
+
+/**
+ * il4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
+ */
+static inline __le32
+il4965_dma_addr2rbd_ptr(struct il_priv *il, dma_addr_t dma_addr)
+{
+ return cpu_to_le32((u32) (dma_addr >> 8));
+}
+
+/**
+ * il4965_rx_queue_restock - refill RX queue from pre-allocated pool
+ *
+ * If there are slots in the RX queue that need to be restocked,
+ * and we have free pre-allocated buffers, fill the ranks as much
+ * as we can, pulling from rx_free.
+ *
+ * This moves the 'write' idx forward to catch up with 'processed', and
+ * also updates the memory address in the firmware to reference the new
+ * target buffer.
+ */
+void
+il4965_rx_queue_restock(struct il_priv *il)
+{
+ struct il_rx_queue *rxq = &il->rxq;
+ struct list_head *element;
+ struct il_rx_buf *rxb;
+ unsigned long flags;
+
+ spin_lock_irqsave(&rxq->lock, flags);
+ while (il_rx_queue_space(rxq) > 0 && rxq->free_count) {
+ /* The overwritten rxb must be a used one */
+ rxb = rxq->queue[rxq->write];
+ BUG_ON(rxb && rxb->page);
+
+ /* Get next free Rx buffer, remove from free list */
+ element = rxq->rx_free.next;
+ rxb = list_entry(element, struct il_rx_buf, list);
+ list_del(element);
+
+ /* Point to Rx buffer via next RBD in circular buffer */
+ rxq->bd[rxq->write] =
+ il4965_dma_addr2rbd_ptr(il, rxb->page_dma);
+ rxq->queue[rxq->write] = rxb;
+ rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
+ rxq->free_count--;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ /* If the pre-allocated buffer pool is dropping low, schedule to
+ * refill it */
+ if (rxq->free_count <= RX_LOW_WATERMARK)
+ queue_work(il->workqueue, &il->rx_replenish);
+
+ /* If we've added more space for the firmware to place data, tell it.
+ * Increment device's write pointer in multiples of 8. */
+ if (rxq->write_actual != (rxq->write & ~0x7)) {
+ spin_lock_irqsave(&rxq->lock, flags);
+ rxq->need_update = 1;
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ il_rx_queue_update_write_ptr(il, rxq);
+ }
+}
+
+/**
+ * il4965_rx_replenish - Move all used packet from rx_used to rx_free
+ *
+ * When moving to rx_free an SKB is allocated for the slot.
+ *
+ * Also restock the Rx queue via il_rx_queue_restock.
+ * This is called as a scheduled work item (except for during initialization)
+ */
+static void
+il4965_rx_allocate(struct il_priv *il, gfp_t priority)
+{
+ struct il_rx_queue *rxq = &il->rxq;
+ struct list_head *element;
+ struct il_rx_buf *rxb;
+ struct page *page;
+ unsigned long flags;
+ gfp_t gfp_mask = priority;
+
+ while (1) {
+ spin_lock_irqsave(&rxq->lock, flags);
+ if (list_empty(&rxq->rx_used)) {
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ return;
+ }
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ if (rxq->free_count > RX_LOW_WATERMARK)
+ gfp_mask |= __GFP_NOWARN;
+
+ if (il->hw_params.rx_page_order > 0)
+ gfp_mask |= __GFP_COMP;
+
+ /* Alloc a new receive buffer */
+ page = alloc_pages(gfp_mask, il->hw_params.rx_page_order);
+ if (!page) {
+ if (net_ratelimit())
+ D_INFO("alloc_pages failed, " "order: %d\n",
+ il->hw_params.rx_page_order);
+
+ if (rxq->free_count <= RX_LOW_WATERMARK &&
+ net_ratelimit())
+ IL_ERR("Failed to alloc_pages with %s. "
+ "Only %u free buffers remaining.\n",
+ priority ==
+ GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL",
+ rxq->free_count);
+ /* We don't reschedule replenish work here -- we will
+ * call the restock method and if it still needs
+ * more buffers it will schedule replenish */
+ return;
+ }
+
+ spin_lock_irqsave(&rxq->lock, flags);
+
+ if (list_empty(&rxq->rx_used)) {
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ __free_pages(page, il->hw_params.rx_page_order);
+ return;
+ }
+ element = rxq->rx_used.next;
+ rxb = list_entry(element, struct il_rx_buf, list);
+ list_del(element);
+
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ BUG_ON(rxb->page);
+ rxb->page = page;
+ /* Get physical address of the RB */
+ rxb->page_dma =
+ pci_map_page(il->pci_dev, page, 0,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ /* dma address must be no more than 36 bits */
+ BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36));
+ /* and also 256 byte aligned! */
+ BUG_ON(rxb->page_dma & DMA_BIT_MASK(8));
+
+ spin_lock_irqsave(&rxq->lock, flags);
+
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ il->alloc_rxb_page++;
+
+ spin_unlock_irqrestore(&rxq->lock, flags);
+ }
+}
+
+void
+il4965_rx_replenish(struct il_priv *il)
+{
+ unsigned long flags;
+
+ il4965_rx_allocate(il, GFP_KERNEL);
+
+ spin_lock_irqsave(&il->lock, flags);
+ il4965_rx_queue_restock(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+}
+
+void
+il4965_rx_replenish_now(struct il_priv *il)
+{
+ il4965_rx_allocate(il, GFP_ATOMIC);
+
+ il4965_rx_queue_restock(il);
+}
+
+/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
+ * If an SKB has been detached, the POOL needs to have its SKB set to NULL
+ * This free routine walks the list of POOL entries and if SKB is set to
+ * non NULL it is unmapped and freed
+ */
+void
+il4965_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq)
+{
+ int i;
+ for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
+ if (rxq->pool[i].page != NULL) {
+ pci_unmap_page(il->pci_dev, rxq->pool[i].page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ __il_free_pages(il, rxq->pool[i].page);
+ rxq->pool[i].page = NULL;
+ }
+ }
+
+ dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->bd_dma);
+ dma_free_coherent(&il->pci_dev->dev, sizeof(struct il_rb_status),
+ rxq->rb_stts, rxq->rb_stts_dma);
+ rxq->bd = NULL;
+ rxq->rb_stts = NULL;
+}
+
+int
+il4965_rxq_stop(struct il_priv *il)
+{
+
+ /* stop Rx DMA */
+ il_wr(il, FH49_MEM_RCSR_CHNL0_CONFIG_REG, 0);
+ il_poll_bit(il, FH49_MEM_RSSR_RX_STATUS_REG,
+ FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
+
+ return 0;
+}
+
+int
+il4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
+{
+ int idx = 0;
+ int band_offset = 0;
+
+ /* HT rate format: mac80211 wants an MCS number, which is just LSB */
+ if (rate_n_flags & RATE_MCS_HT_MSK) {
+ idx = (rate_n_flags & 0xff);
+ return idx;
+ /* Legacy rate format, search for match in table */
+ } else {
+ if (band == IEEE80211_BAND_5GHZ)
+ band_offset = IL_FIRST_OFDM_RATE;
+ for (idx = band_offset; idx < RATE_COUNT_LEGACY; idx++)
+ if (il_rates[idx].plcp == (rate_n_flags & 0xFF))
+ return idx - band_offset;
+ }
+
+ return -1;
+}
+
+static int
+il4965_calc_rssi(struct il_priv *il, struct il_rx_phy_res *rx_resp)
+{
+ /* data from PHY/DSP regarding signal strength, etc.,
+ * contents are always there, not configurable by host. */
+ struct il4965_rx_non_cfg_phy *ncphy =
+ (struct il4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
+ u32 agc =
+ (le16_to_cpu(ncphy->agc_info) & IL49_AGC_DB_MASK) >>
+ IL49_AGC_DB_POS;
+
+ u32 valid_antennae =
+ (le16_to_cpu(rx_resp->phy_flags) & IL49_RX_PHY_FLAGS_ANTENNAE_MASK)
+ >> IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET;
+ u8 max_rssi = 0;
+ u32 i;
+
+ /* Find max rssi among 3 possible receivers.
+ * These values are measured by the digital signal processor (DSP).
+ * They should stay fairly constant even as the signal strength varies,
+ * if the radio's automatic gain control (AGC) is working right.
+ * AGC value (see below) will provide the "interesting" info. */
+ for (i = 0; i < 3; i++)
+ if (valid_antennae & (1 << i))
+ max_rssi = max(ncphy->rssi_info[i << 1], max_rssi);
+
+ D_STATS("Rssi In A %d B %d C %d Max %d AGC dB %d\n",
+ ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4],
+ max_rssi, agc);
+
+ /* dBm = max_rssi dB - agc dB - constant.
+ * Higher AGC (higher radio gain) means lower signal. */
+ return max_rssi - agc - IL4965_RSSI_OFFSET;
+}
+
+static u32
+il4965_translate_rx_status(struct il_priv *il, u32 decrypt_in)
+{
+ u32 decrypt_out = 0;
+
+ if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) ==
+ RX_RES_STATUS_STATION_FOUND)
+ decrypt_out |=
+ (RX_RES_STATUS_STATION_FOUND |
+ RX_RES_STATUS_NO_STATION_INFO_MISMATCH);
+
+ decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK);
+
+ /* packet was not encrypted */
+ if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
+ RX_RES_STATUS_SEC_TYPE_NONE)
+ return decrypt_out;
+
+ /* packet was encrypted with unknown alg */
+ if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
+ RX_RES_STATUS_SEC_TYPE_ERR)
+ return decrypt_out;
+
+ /* decryption was not done in HW */
+ if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) !=
+ RX_MPDU_RES_STATUS_DEC_DONE_MSK)
+ return decrypt_out;
+
+ switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) {
+
+ case RX_RES_STATUS_SEC_TYPE_CCMP:
+ /* alg is CCM: check MIC only */
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK))
+ /* Bad MIC */
+ decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
+ else
+ decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
+
+ break;
+
+ case RX_RES_STATUS_SEC_TYPE_TKIP:
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) {
+ /* Bad TTAK */
+ decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
+ break;
+ }
+ /* fall through if TTAK OK */
+ default:
+ if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
+ decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
+ else
+ decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
+ break;
+ }
+
+ D_RX("decrypt_in:0x%x decrypt_out = 0x%x\n", decrypt_in, decrypt_out);
+
+ return decrypt_out;
+}
+
+static void
+il4965_pass_packet_to_mac80211(struct il_priv *il, struct ieee80211_hdr *hdr,
+ u16 len, u32 ampdu_status, struct il_rx_buf *rxb,
+ struct ieee80211_rx_status *stats)
+{
+ struct sk_buff *skb;
+ __le16 fc = hdr->frame_control;
+
+ /* We only process data packets if the interface is open */
+ if (unlikely(!il->is_open)) {
+ D_DROP("Dropping packet while interface is not open.\n");
+ return;
+ }
+
+ /* In case of HW accelerated crypto and bad decryption, drop */
+ if (!il->cfg->mod_params->sw_crypto &&
+ il_set_decrypted_flag(il, hdr, ampdu_status, stats))
+ return;
+
+ skb = dev_alloc_skb(128);
+ if (!skb) {
+ IL_ERR("dev_alloc_skb failed\n");
+ return;
+ }
+
+ skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len);
+
+ il_update_stats(il, false, fc, len);
+ memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
+
+ ieee80211_rx(il->hw, skb);
+ il->alloc_rxb_page--;
+ rxb->page = NULL;
+}
+
+/* Called for N_RX (legacy ABG frames), or
+ * N_RX_MPDU (HT high-throughput N frames). */
+void
+il4965_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct ieee80211_hdr *header;
+ struct ieee80211_rx_status rx_status;
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_rx_phy_res *phy_res;
+ __le32 rx_pkt_status;
+ struct il_rx_mpdu_res_start *amsdu;
+ u32 len;
+ u32 ampdu_status;
+ u32 rate_n_flags;
+
+ /**
+ * N_RX and N_RX_MPDU are handled differently.
+ * N_RX: physical layer info is in this buffer
+ * N_RX_MPDU: physical layer info was sent in separate
+ * command and cached in il->last_phy_res
+ *
+ * Here we set up local variables depending on which command is
+ * received.
+ */
+ if (pkt->hdr.cmd == N_RX) {
+ phy_res = (struct il_rx_phy_res *)pkt->u.raw;
+ header =
+ (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res) +
+ phy_res->cfg_phy_cnt);
+
+ len = le16_to_cpu(phy_res->byte_count);
+ rx_pkt_status =
+ *(__le32 *) (pkt->u.raw + sizeof(*phy_res) +
+ phy_res->cfg_phy_cnt + len);
+ ampdu_status = le32_to_cpu(rx_pkt_status);
+ } else {
+ if (!il->_4965.last_phy_res_valid) {
+ IL_ERR("MPDU frame without cached PHY data\n");
+ return;
+ }
+ phy_res = &il->_4965.last_phy_res;
+ amsdu = (struct il_rx_mpdu_res_start *)pkt->u.raw;
+ header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu));
+ len = le16_to_cpu(amsdu->byte_count);
+ rx_pkt_status = *(__le32 *) (pkt->u.raw + sizeof(*amsdu) + len);
+ ampdu_status =
+ il4965_translate_rx_status(il, le32_to_cpu(rx_pkt_status));
+ }
+
+ if ((unlikely(phy_res->cfg_phy_cnt > 20))) {
+ D_DROP("dsp size out of range [0,20]: %d/n",
+ phy_res->cfg_phy_cnt);
+ return;
+ }
+
+ if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) ||
+ !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
+ D_RX("Bad CRC or FIFO: 0x%08X.\n", le32_to_cpu(rx_pkt_status));
+ return;
+ }
+
+ /* This will be used in several places later */
+ rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
+
+ /* rx_status carries information about the packet to mac80211 */
+ rx_status.mactime = le64_to_cpu(phy_res->timestamp);
+ rx_status.band =
+ (phy_res->
+ phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ? IEEE80211_BAND_2GHZ :
+ IEEE80211_BAND_5GHZ;
+ rx_status.freq =
+ ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel),
+ rx_status.band);
+ rx_status.rate_idx =
+ il4965_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band);
+ rx_status.flag = 0;
+
+ /* TSF isn't reliable. In order to allow smooth user experience,
+ * this W/A doesn't propagate it to the mac80211 */
+ /*rx_status.flag |= RX_FLAG_MACTIME_MPDU; */
+
+ il->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp);
+
+ /* Find max signal strength (dBm) among 3 antenna/receiver chains */
+ rx_status.signal = il4965_calc_rssi(il, phy_res);
+
+ il_dbg_log_rx_data_frame(il, len, header);
+ D_STATS("Rssi %d, TSF %llu\n", rx_status.signal,
+ (unsigned long long)rx_status.mactime);
+
+ /*
+ * "antenna number"
+ *
+ * It seems that the antenna field in the phy flags value
+ * is actually a bit field. This is undefined by radiotap,
+ * it wants an actual antenna number but I always get "7"
+ * for most legacy frames I receive indicating that the
+ * same frame was received on all three RX chains.
+ *
+ * I think this field should be removed in favor of a
+ * new 802.11n radiotap field "RX chains" that is defined
+ * as a bitmask.
+ */
+ rx_status.antenna =
+ (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK) >>
+ RX_RES_PHY_FLAGS_ANTENNA_POS;
+
+ /* set the preamble flag if appropriate */
+ if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
+ rx_status.flag |= RX_FLAG_SHORTPRE;
+
+ /* Set up the HT phy flags */
+ if (rate_n_flags & RATE_MCS_HT_MSK)
+ rx_status.flag |= RX_FLAG_HT;
+ if (rate_n_flags & RATE_MCS_HT40_MSK)
+ rx_status.flag |= RX_FLAG_40MHZ;
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ rx_status.flag |= RX_FLAG_SHORT_GI;
+
+ il4965_pass_packet_to_mac80211(il, header, len, ampdu_status, rxb,
+ &rx_status);
+}
+
+/* Cache phy data (Rx signal strength, etc) for HT frame (N_RX_PHY).
+ * This will be used later in il_hdl_rx() for N_RX_MPDU. */
+void
+il4965_hdl_rx_phy(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ il->_4965.last_phy_res_valid = true;
+ memcpy(&il->_4965.last_phy_res, pkt->u.raw,
+ sizeof(struct il_rx_phy_res));
+}
+
+static int
+il4965_get_channels_for_scan(struct il_priv *il, struct ieee80211_vif *vif,
+ enum ieee80211_band band, u8 is_active,
+ u8 n_probes, struct il_scan_channel *scan_ch)
+{
+ struct ieee80211_channel *chan;
+ const struct ieee80211_supported_band *sband;
+ const struct il_channel_info *ch_info;
+ u16 passive_dwell = 0;
+ u16 active_dwell = 0;
+ int added, i;
+ u16 channel;
+
+ sband = il_get_hw_mode(il, band);
+ if (!sband)
+ return 0;
+
+ active_dwell = il_get_active_dwell_time(il, band, n_probes);
+ passive_dwell = il_get_passive_dwell_time(il, band, vif);
+
+ if (passive_dwell <= active_dwell)
+ passive_dwell = active_dwell + 1;
+
+ for (i = 0, added = 0; i < il->scan_request->n_channels; i++) {
+ chan = il->scan_request->channels[i];
+
+ if (chan->band != band)
+ continue;
+
+ channel = chan->hw_value;
+ scan_ch->channel = cpu_to_le16(channel);
+
+ ch_info = il_get_channel_info(il, band, channel);
+ if (!il_is_channel_valid(ch_info)) {
+ D_SCAN("Channel %d is INVALID for this band.\n",
+ channel);
+ continue;
+ }
+
+ if (!is_active || il_is_channel_passive(ch_info) ||
+ (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN))
+ scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE;
+ else
+ scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE;
+
+ if (n_probes)
+ scan_ch->type |= IL_SCAN_PROBE_MASK(n_probes);
+
+ scan_ch->active_dwell = cpu_to_le16(active_dwell);
+ scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
+
+ /* Set txpower levels to defaults */
+ scan_ch->dsp_atten = 110;
+
+ /* NOTE: if we were doing 6Mb OFDM for scans we'd use
+ * power level:
+ * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3;
+ */
+ if (band == IEEE80211_BAND_5GHZ)
+ scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3;
+ else
+ scan_ch->tx_gain = ((1 << 5) | (5 << 3));
+
+ D_SCAN("Scanning ch=%d prob=0x%X [%s %d]\n", channel,
+ le32_to_cpu(scan_ch->type),
+ (scan_ch->
+ type & SCAN_CHANNEL_TYPE_ACTIVE) ? "ACTIVE" : "PASSIVE",
+ (scan_ch->
+ type & SCAN_CHANNEL_TYPE_ACTIVE) ? active_dwell :
+ passive_dwell);
+
+ scan_ch++;
+ added++;
+ }
+
+ D_SCAN("total channels to scan %d\n", added);
+ return added;
+}
+
+static inline u32
+il4965_ant_idx_to_flags(u8 ant_idx)
+{
+ return BIT(ant_idx) << RATE_MCS_ANT_POS;
+}
+
+int
+il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif)
+{
+ struct il_host_cmd cmd = {
+ .id = C_SCAN,
+ .len = sizeof(struct il_scan_cmd),
+ .flags = CMD_SIZE_HUGE,
+ };
+ struct il_scan_cmd *scan;
+ struct il_rxon_context *ctx = &il->ctx;
+ u32 rate_flags = 0;
+ u16 cmd_len;
+ u16 rx_chain = 0;
+ enum ieee80211_band band;
+ u8 n_probes = 0;
+ u8 rx_ant = il->hw_params.valid_rx_ant;
+ u8 rate;
+ bool is_active = false;
+ int chan_mod;
+ u8 active_chains;
+ u8 scan_tx_antennas = il->hw_params.valid_tx_ant;
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ ctx = il_rxon_ctx_from_vif(vif);
+
+ if (!il->scan_cmd) {
+ il->scan_cmd =
+ kmalloc(sizeof(struct il_scan_cmd) + IL_MAX_SCAN_SIZE,
+ GFP_KERNEL);
+ if (!il->scan_cmd) {
+ D_SCAN("fail to allocate memory for scan\n");
+ return -ENOMEM;
+ }
+ }
+ scan = il->scan_cmd;
+ memset(scan, 0, sizeof(struct il_scan_cmd) + IL_MAX_SCAN_SIZE);
+
+ scan->quiet_plcp_th = IL_PLCP_QUIET_THRESH;
+ scan->quiet_time = IL_ACTIVE_QUIET_TIME;
+
+ if (il_is_any_associated(il)) {
+ u16 interval;
+ u32 extra;
+ u32 suspend_time = 100;
+ u32 scan_suspend_time = 100;
+
+ D_INFO("Scanning while associated...\n");
+ interval = vif->bss_conf.beacon_int;
+
+ scan->suspend_time = 0;
+ scan->max_out_time = cpu_to_le32(200 * 1024);
+ if (!interval)
+ interval = suspend_time;
+
+ extra = (suspend_time / interval) << 22;
+ scan_suspend_time =
+ (extra | ((suspend_time % interval) * 1024));
+ scan->suspend_time = cpu_to_le32(scan_suspend_time);
+ D_SCAN("suspend_time 0x%X beacon interval %d\n",
+ scan_suspend_time, interval);
+ }
+
+ if (il->scan_request->n_ssids) {
+ int i, p = 0;
+ D_SCAN("Kicking off active scan\n");
+ for (i = 0; i < il->scan_request->n_ssids; i++) {
+ /* always does wildcard anyway */
+ if (!il->scan_request->ssids[i].ssid_len)
+ continue;
+ scan->direct_scan[p].id = WLAN_EID_SSID;
+ scan->direct_scan[p].len =
+ il->scan_request->ssids[i].ssid_len;
+ memcpy(scan->direct_scan[p].ssid,
+ il->scan_request->ssids[i].ssid,
+ il->scan_request->ssids[i].ssid_len);
+ n_probes++;
+ p++;
+ }
+ is_active = true;
+ } else
+ D_SCAN("Start passive scan.\n");
+
+ scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
+ scan->tx_cmd.sta_id = ctx->bcast_sta_id;
+ scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+
+ switch (il->scan_band) {
+ case IEEE80211_BAND_2GHZ:
+ scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
+ chan_mod =
+ le32_to_cpu(il->ctx.active.
+ flags & RXON_FLG_CHANNEL_MODE_MSK) >>
+ RXON_FLG_CHANNEL_MODE_POS;
+ if (chan_mod == CHANNEL_MODE_PURE_40) {
+ rate = RATE_6M_PLCP;
+ } else {
+ rate = RATE_1M_PLCP;
+ rate_flags = RATE_MCS_CCK_MSK;
+ }
+ break;
+ case IEEE80211_BAND_5GHZ:
+ rate = RATE_6M_PLCP;
+ break;
+ default:
+ IL_WARN("Invalid scan band\n");
+ return -EIO;
+ }
+
+ /*
+ * If active scanning is requested but a certain channel is
+ * marked passive, we can do active scanning if we detect
+ * transmissions.
+ *
+ * There is an issue with some firmware versions that triggers
+ * a sysassert on a "good CRC threshold" of zero (== disabled),
+ * on a radar channel even though this means that we should NOT
+ * send probes.
+ *
+ * The "good CRC threshold" is the number of frames that we
+ * need to receive during our dwell time on a channel before
+ * sending out probes -- setting this to a huge value will
+ * mean we never reach it, but at the same time work around
+ * the aforementioned issue. Thus use IL_GOOD_CRC_TH_NEVER
+ * here instead of IL_GOOD_CRC_TH_DISABLED.
+ */
+ scan->good_CRC_th =
+ is_active ? IL_GOOD_CRC_TH_DEFAULT : IL_GOOD_CRC_TH_NEVER;
+
+ band = il->scan_band;
+
+ if (il->cfg->scan_rx_antennas[band])
+ rx_ant = il->cfg->scan_rx_antennas[band];
+
+ il->scan_tx_ant[band] =
+ il4965_toggle_tx_ant(il, il->scan_tx_ant[band], scan_tx_antennas);
+ rate_flags |= il4965_ant_idx_to_flags(il->scan_tx_ant[band]);
+ scan->tx_cmd.rate_n_flags =
+ il4965_hw_set_rate_n_flags(rate, rate_flags);
+
+ /* In power save mode use one chain, otherwise use all chains */
+ if (test_bit(S_POWER_PMI, &il->status)) {
+ /* rx_ant has been set to all valid chains previously */
+ active_chains =
+ rx_ant & ((u8) (il->chain_noise_data.active_chains));
+ if (!active_chains)
+ active_chains = rx_ant;
+
+ D_SCAN("chain_noise_data.active_chains: %u\n",
+ il->chain_noise_data.active_chains);
+
+ rx_ant = il4965_first_antenna(active_chains);
+ }
+
+ /* MIMO is not used here, but value is required */
+ rx_chain |= il->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS;
+ rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
+ rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS;
+ rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
+ scan->rx_chain = cpu_to_le16(rx_chain);
+
+ cmd_len =
+ il_fill_probe_req(il, (struct ieee80211_mgmt *)scan->data,
+ vif->addr, il->scan_request->ie,
+ il->scan_request->ie_len,
+ IL_MAX_SCAN_SIZE - sizeof(*scan));
+ scan->tx_cmd.len = cpu_to_le16(cmd_len);
+
+ scan->filter_flags |=
+ (RXON_FILTER_ACCEPT_GRP_MSK | RXON_FILTER_BCON_AWARE_MSK);
+
+ scan->channel_count =
+ il4965_get_channels_for_scan(il, vif, band, is_active, n_probes,
+ (void *)&scan->data[cmd_len]);
+ if (scan->channel_count == 0) {
+ D_SCAN("channel count %d\n", scan->channel_count);
+ return -EIO;
+ }
+
+ cmd.len +=
+ le16_to_cpu(scan->tx_cmd.len) +
+ scan->channel_count * sizeof(struct il_scan_channel);
+ cmd.data = scan;
+ scan->len = cpu_to_le16(cmd.len);
+
+ set_bit(S_SCAN_HW, &il->status);
+
+ ret = il_send_cmd_sync(il, &cmd);
+ if (ret)
+ clear_bit(S_SCAN_HW, &il->status);
+
+ return ret;
+}
+
+int
+il4965_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif,
+ bool add)
+{
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+
+ if (add)
+ return il4965_add_bssid_station(il, vif_priv->ctx,
+ vif->bss_conf.bssid,
+ &vif_priv->ibss_bssid_sta_id);
+ return il_remove_station(il, vif_priv->ibss_bssid_sta_id,
+ vif->bss_conf.bssid);
+}
+
+void
+il4965_free_tfds_in_queue(struct il_priv *il, int sta_id, int tid, int freed)
+{
+ lockdep_assert_held(&il->sta_lock);
+
+ if (il->stations[sta_id].tid[tid].tfds_in_queue >= freed)
+ il->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ else {
+ D_TX("free more than tfds_in_queue (%u:%d)\n",
+ il->stations[sta_id].tid[tid].tfds_in_queue, freed);
+ il->stations[sta_id].tid[tid].tfds_in_queue = 0;
+ }
+}
+
+#define IL_TX_QUEUE_MSK 0xfffff
+
+static bool
+il4965_is_single_rx_stream(struct il_priv *il)
+{
+ return il->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
+ il->current_ht_config.single_chain_sufficient;
+}
+
+#define IL_NUM_RX_CHAINS_MULTIPLE 3
+#define IL_NUM_RX_CHAINS_SINGLE 2
+#define IL_NUM_IDLE_CHAINS_DUAL 2
+#define IL_NUM_IDLE_CHAINS_SINGLE 1
+
+/*
+ * Determine how many receiver/antenna chains to use.
+ *
+ * More provides better reception via diversity. Fewer saves power
+ * at the expense of throughput, but only when not in powersave to
+ * start with.
+ *
+ * MIMO (dual stream) requires at least 2, but works better with 3.
+ * This does not determine *which* chains to use, just how many.
+ */
+static int
+il4965_get_active_rx_chain_count(struct il_priv *il)
+{
+ /* # of Rx chains to use when expecting MIMO. */
+ if (il4965_is_single_rx_stream(il))
+ return IL_NUM_RX_CHAINS_SINGLE;
+ else
+ return IL_NUM_RX_CHAINS_MULTIPLE;
+}
+
+/*
+ * When we are in power saving mode, unless device support spatial
+ * multiplexing power save, use the active count for rx chain count.
+ */
+static int
+il4965_get_idle_rx_chain_count(struct il_priv *il, int active_cnt)
+{
+ /* # Rx chains when idling, depending on SMPS mode */
+ switch (il->current_ht_config.smps) {
+ case IEEE80211_SMPS_STATIC:
+ case IEEE80211_SMPS_DYNAMIC:
+ return IL_NUM_IDLE_CHAINS_SINGLE;
+ case IEEE80211_SMPS_OFF:
+ return active_cnt;
+ default:
+ WARN(1, "invalid SMPS mode %d", il->current_ht_config.smps);
+ return active_cnt;
+ }
+}
+
+/* up to 4 chains */
+static u8
+il4965_count_chain_bitmap(u32 chain_bitmap)
+{
+ u8 res;
+ res = (chain_bitmap & BIT(0)) >> 0;
+ res += (chain_bitmap & BIT(1)) >> 1;
+ res += (chain_bitmap & BIT(2)) >> 2;
+ res += (chain_bitmap & BIT(3)) >> 3;
+ return res;
+}
+
+/**
+ * il4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
+ *
+ * Selects how many and which Rx receivers/antennas/chains to use.
+ * This should not be used for scan command ... it puts data in wrong place.
+ */
+void
+il4965_set_rxon_chain(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ bool is_single = il4965_is_single_rx_stream(il);
+ bool is_cam = !test_bit(S_POWER_PMI, &il->status);
+ u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
+ u32 active_chains;
+ u16 rx_chain;
+
+ /* Tell uCode which antennas are actually connected.
+ * Before first association, we assume all antennas are connected.
+ * Just after first association, il4965_chain_noise_calibration()
+ * checks which antennas actually *are* connected. */
+ if (il->chain_noise_data.active_chains)
+ active_chains = il->chain_noise_data.active_chains;
+ else
+ active_chains = il->hw_params.valid_rx_ant;
+
+ rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
+
+ /* How many receivers should we use? */
+ active_rx_cnt = il4965_get_active_rx_chain_count(il);
+ idle_rx_cnt = il4965_get_idle_rx_chain_count(il, active_rx_cnt);
+
+ /* correct rx chain count according hw settings
+ * and chain noise calibration
+ */
+ valid_rx_cnt = il4965_count_chain_bitmap(active_chains);
+ if (valid_rx_cnt < active_rx_cnt)
+ active_rx_cnt = valid_rx_cnt;
+
+ if (valid_rx_cnt < idle_rx_cnt)
+ idle_rx_cnt = valid_rx_cnt;
+
+ rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
+ rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
+
+ ctx->staging.rx_chain = cpu_to_le16(rx_chain);
+
+ if (!is_single && active_rx_cnt >= IL_NUM_RX_CHAINS_SINGLE && is_cam)
+ ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
+ else
+ ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
+
+ D_ASSOC("rx_chain=0x%X active=%d idle=%d\n", ctx->staging.rx_chain,
+ active_rx_cnt, idle_rx_cnt);
+
+ WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
+ active_rx_cnt < idle_rx_cnt);
+}
+
+u8
+il4965_toggle_tx_ant(struct il_priv *il, u8 ant, u8 valid)
+{
+ int i;
+ u8 ind = ant;
+
+ for (i = 0; i < RATE_ANT_NUM - 1; i++) {
+ ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
+ if (valid & BIT(ind))
+ return ind;
+ }
+ return ant;
+}
+
+static const char *
+il4965_get_fh_string(int cmd)
+{
+ switch (cmd) {
+ IL_CMD(FH49_RSCSR_CHNL0_STTS_WPTR_REG);
+ IL_CMD(FH49_RSCSR_CHNL0_RBDCB_BASE_REG);
+ IL_CMD(FH49_RSCSR_CHNL0_WPTR);
+ IL_CMD(FH49_MEM_RCSR_CHNL0_CONFIG_REG);
+ IL_CMD(FH49_MEM_RSSR_SHARED_CTRL_REG);
+ IL_CMD(FH49_MEM_RSSR_RX_STATUS_REG);
+ IL_CMD(FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV);
+ IL_CMD(FH49_TSSR_TX_STATUS_REG);
+ IL_CMD(FH49_TSSR_TX_ERROR_REG);
+ default:
+ return "UNKNOWN";
+ }
+}
+
+int
+il4965_dump_fh(struct il_priv *il, char **buf, bool display)
+{
+ int i;
+#ifdef CONFIG_IWLEGACY_DEBUG
+ int pos = 0;
+ size_t bufsz = 0;
+#endif
+ static const u32 fh_tbl[] = {
+ FH49_RSCSR_CHNL0_STTS_WPTR_REG,
+ FH49_RSCSR_CHNL0_RBDCB_BASE_REG,
+ FH49_RSCSR_CHNL0_WPTR,
+ FH49_MEM_RCSR_CHNL0_CONFIG_REG,
+ FH49_MEM_RSSR_SHARED_CTRL_REG,
+ FH49_MEM_RSSR_RX_STATUS_REG,
+ FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV,
+ FH49_TSSR_TX_STATUS_REG,
+ FH49_TSSR_TX_ERROR_REG
+ };
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (display) {
+ bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+ *buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!*buf)
+ return -ENOMEM;
+ pos +=
+ scnprintf(*buf + pos, bufsz - pos, "FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ pos +=
+ scnprintf(*buf + pos, bufsz - pos,
+ " %34s: 0X%08x\n",
+ il4965_get_fh_string(fh_tbl[i]),
+ il_rd(il, fh_tbl[i]));
+ }
+ return pos;
+ }
+#endif
+ IL_ERR("FH register values:\n");
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ IL_ERR(" %34s: 0X%08x\n", il4965_get_fh_string(fh_tbl[i]),
+ il_rd(il, fh_tbl[i]));
+ }
+ return 0;
+}
+
+void
+il4965_hdl_missed_beacon(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_missed_beacon_notif *missed_beacon;
+
+ missed_beacon = &pkt->u.missed_beacon;
+ if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) >
+ il->missed_beacon_threshold) {
+ D_CALIB("missed bcn cnsq %d totl %d rcd %d expctd %d\n",
+ le32_to_cpu(missed_beacon->consecutive_missed_beacons),
+ le32_to_cpu(missed_beacon->total_missed_becons),
+ le32_to_cpu(missed_beacon->num_recvd_beacons),
+ le32_to_cpu(missed_beacon->num_expected_beacons));
+ if (!test_bit(S_SCANNING, &il->status))
+ il4965_init_sensitivity(il);
+ }
+}
+
+/* Calculate noise level, based on measurements during network silence just
+ * before arriving beacon. This measurement can be done only if we know
+ * exactly when to expect beacons, therefore only when we're associated. */
+static void
+il4965_rx_calc_noise(struct il_priv *il)
+{
+ struct stats_rx_non_phy *rx_info;
+ int num_active_rx = 0;
+ int total_silence = 0;
+ int bcn_silence_a, bcn_silence_b, bcn_silence_c;
+ int last_rx_noise;
+
+ rx_info = &(il->_4965.stats.rx.general);
+ bcn_silence_a =
+ le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
+ bcn_silence_b =
+ le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
+ bcn_silence_c =
+ le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
+
+ if (bcn_silence_a) {
+ total_silence += bcn_silence_a;
+ num_active_rx++;
+ }
+ if (bcn_silence_b) {
+ total_silence += bcn_silence_b;
+ num_active_rx++;
+ }
+ if (bcn_silence_c) {
+ total_silence += bcn_silence_c;
+ num_active_rx++;
+ }
+
+ /* Average among active antennas */
+ if (num_active_rx)
+ last_rx_noise = (total_silence / num_active_rx) - 107;
+ else
+ last_rx_noise = IL_NOISE_MEAS_NOT_AVAILABLE;
+
+ D_CALIB("inband silence a %u, b %u, c %u, dBm %d\n", bcn_silence_a,
+ bcn_silence_b, bcn_silence_c, last_rx_noise);
+}
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+/*
+ * based on the assumption of all stats counter are in DWORD
+ * FIXME: This function is for debugging, do not deal with
+ * the case of counters roll-over.
+ */
+static void
+il4965_accumulative_stats(struct il_priv *il, __le32 * stats)
+{
+ int i, size;
+ __le32 *prev_stats;
+ u32 *accum_stats;
+ u32 *delta, *max_delta;
+ struct stats_general_common *general, *accum_general;
+ struct stats_tx *tx, *accum_tx;
+
+ prev_stats = (__le32 *) &il->_4965.stats;
+ accum_stats = (u32 *) &il->_4965.accum_stats;
+ size = sizeof(struct il_notif_stats);
+ general = &il->_4965.stats.general.common;
+ accum_general = &il->_4965.accum_stats.general.common;
+ tx = &il->_4965.stats.tx;
+ accum_tx = &il->_4965.accum_stats.tx;
+ delta = (u32 *) &il->_4965.delta_stats;
+ max_delta = (u32 *) &il->_4965.max_delta;
+
+ for (i = sizeof(__le32); i < size;
+ i +=
+ sizeof(__le32), stats++, prev_stats++, delta++, max_delta++,
+ accum_stats++) {
+ if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
+ *delta =
+ (le32_to_cpu(*stats) - le32_to_cpu(*prev_stats));
+ *accum_stats += *delta;
+ if (*delta > *max_delta)
+ *max_delta = *delta;
+ }
+ }
+
+ /* reset accumulative stats for "no-counter" type stats */
+ accum_general->temperature = general->temperature;
+ accum_general->ttl_timestamp = general->ttl_timestamp;
+}
+#endif
+
+#define REG_RECALIB_PERIOD (60)
+
+void
+il4965_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ int change;
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+
+ D_RX("Statistics notification received (%d vs %d).\n",
+ (int)sizeof(struct il_notif_stats),
+ le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK);
+
+ change =
+ ((il->_4965.stats.general.common.temperature !=
+ pkt->u.stats.general.common.temperature) ||
+ ((il->_4965.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK) !=
+ (pkt->u.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK)));
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ il4965_accumulative_stats(il, (__le32 *) &pkt->u.stats);
+#endif
+
+ /* TODO: reading some of stats is unneeded */
+ memcpy(&il->_4965.stats, &pkt->u.stats, sizeof(il->_4965.stats));
+
+ set_bit(S_STATS, &il->status);
+
+ /* Reschedule the stats timer to occur in
+ * REG_RECALIB_PERIOD seconds to ensure we get a
+ * thermal update even if the uCode doesn't give
+ * us one */
+ mod_timer(&il->stats_periodic,
+ jiffies + msecs_to_jiffies(REG_RECALIB_PERIOD * 1000));
+
+ if (unlikely(!test_bit(S_SCANNING, &il->status)) &&
+ (pkt->hdr.cmd == N_STATS)) {
+ il4965_rx_calc_noise(il);
+ queue_work(il->workqueue, &il->run_time_calib_work);
+ }
+ if (il->cfg->ops->lib->temp_ops.temperature && change)
+ il->cfg->ops->lib->temp_ops.temperature(il);
+}
+
+void
+il4965_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+
+ if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATS_CLEAR_MSK) {
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ memset(&il->_4965.accum_stats, 0,
+ sizeof(struct il_notif_stats));
+ memset(&il->_4965.delta_stats, 0,
+ sizeof(struct il_notif_stats));
+ memset(&il->_4965.max_delta, 0, sizeof(struct il_notif_stats));
+#endif
+ D_RX("Statistics have been cleared\n");
+ }
+ il4965_hdl_stats(il, rxb);
+}
+
+
+/*
+ * mac80211 queues, ACs, hardware queues, FIFOs.
+ *
+ * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
+ *
+ * Mac80211 uses the following numbers, which we get as from it
+ * by way of skb_get_queue_mapping(skb):
+ *
+ * VO 0
+ * VI 1
+ * BE 2
+ * BK 3
+ *
+ *
+ * Regular (not A-MPDU) frames are put into hardware queues corresponding
+ * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
+ * own queue per aggregation session (RA/TID combination), such queues are
+ * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
+ * order to map frames to the right queue, we also need an AC->hw queue
+ * mapping. This is implemented here.
+ *
+ * Due to the way hw queues are set up (by the hw specific modules like
+ * 4965.c), the AC->hw queue mapping is the identity
+ * mapping.
+ */
+
+static const u8 tid_to_ac[] = {
+ IEEE80211_AC_BE,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BE,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VO,
+ IEEE80211_AC_VO
+};
+
+static inline int
+il4965_get_ac_from_tid(u16 tid)
+{
+ if (likely(tid < ARRAY_SIZE(tid_to_ac)))
+ return tid_to_ac[tid];
+
+ /* no support for TIDs 8-15 yet */
+ return -EINVAL;
+}
+
+static inline int
+il4965_get_fifo_from_tid(struct il_rxon_context *ctx, u16 tid)
+{
+ if (likely(tid < ARRAY_SIZE(tid_to_ac)))
+ return ctx->ac_to_fifo[tid_to_ac[tid]];
+
+ /* no support for TIDs 8-15 yet */
+ return -EINVAL;
+}
+
+/*
+ * handle build C_TX command notification.
+ */
+static void
+il4965_tx_cmd_build_basic(struct il_priv *il, struct sk_buff *skb,
+ struct il_tx_cmd *tx_cmd,
+ struct ieee80211_tx_info *info,
+ struct ieee80211_hdr *hdr, u8 std_id)
+{
+ __le16 fc = hdr->frame_control;
+ __le32 tx_flags = tx_cmd->tx_flags;
+
+ tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ tx_flags |= TX_CMD_FLG_ACK_MSK;
+ if (ieee80211_is_mgmt(fc))
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ if (ieee80211_is_probe_resp(fc) &&
+ !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
+ tx_flags |= TX_CMD_FLG_TSF_MSK;
+ } else {
+ tx_flags &= (~TX_CMD_FLG_ACK_MSK);
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ if (ieee80211_is_back_req(fc))
+ tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
+
+ tx_cmd->sta_id = std_id;
+ if (ieee80211_has_morefrags(fc))
+ tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
+
+ if (ieee80211_is_data_qos(fc)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+ tx_cmd->tid_tspec = qc[0] & 0xf;
+ tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
+ } else {
+ tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
+ }
+
+ il_tx_cmd_protection(il, info, fc, &tx_flags);
+
+ tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
+ if (ieee80211_is_mgmt(fc)) {
+ if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
+ tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3);
+ else
+ tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2);
+ } else {
+ tx_cmd->timeout.pm_frame_timeout = 0;
+ }
+
+ tx_cmd->driver_txop = 0;
+ tx_cmd->tx_flags = tx_flags;
+ tx_cmd->next_frame_len = 0;
+}
+
+#define RTS_DFAULT_RETRY_LIMIT 60
+
+static void
+il4965_tx_cmd_build_rate(struct il_priv *il, struct il_tx_cmd *tx_cmd,
+ struct ieee80211_tx_info *info, __le16 fc)
+{
+ u32 rate_flags;
+ int rate_idx;
+ u8 rts_retry_limit;
+ u8 data_retry_limit;
+ u8 rate_plcp;
+
+ /* Set retry limit on DATA packets and Probe Responses */
+ if (ieee80211_is_probe_resp(fc))
+ data_retry_limit = 3;
+ else
+ data_retry_limit = IL4965_DEFAULT_TX_RETRY;
+ tx_cmd->data_retry_limit = data_retry_limit;
+
+ /* Set retry limit on RTS packets */
+ rts_retry_limit = RTS_DFAULT_RETRY_LIMIT;
+ if (data_retry_limit < rts_retry_limit)
+ rts_retry_limit = data_retry_limit;
+ tx_cmd->rts_retry_limit = rts_retry_limit;
+
+ /* DATA packets will use the uCode station table for rate/antenna
+ * selection */
+ if (ieee80211_is_data(fc)) {
+ tx_cmd->initial_rate_idx = 0;
+ tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
+ return;
+ }
+
+ /**
+ * If the current TX rate stored in mac80211 has the MCS bit set, it's
+ * not really a TX rate. Thus, we use the lowest supported rate for
+ * this band. Also use the lowest supported rate if the stored rate
+ * idx is invalid.
+ */
+ rate_idx = info->control.rates[0].idx;
+ if ((info->control.rates[0].flags & IEEE80211_TX_RC_MCS) || rate_idx < 0
+ || rate_idx > RATE_COUNT_LEGACY)
+ rate_idx =
+ rate_lowest_index(&il->bands[info->band],
+ info->control.sta);
+ /* For 5 GHZ band, remap mac80211 rate indices into driver indices */
+ if (info->band == IEEE80211_BAND_5GHZ)
+ rate_idx += IL_FIRST_OFDM_RATE;
+ /* Get PLCP rate for tx_cmd->rate_n_flags */
+ rate_plcp = il_rates[rate_idx].plcp;
+ /* Zero out flags for this packet */
+ rate_flags = 0;
+
+ /* Set CCK flag as needed */
+ if (rate_idx >= IL_FIRST_CCK_RATE && rate_idx <= IL_LAST_CCK_RATE)
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+ /* Set up antennas */
+ il->mgmt_tx_ant =
+ il4965_toggle_tx_ant(il, il->mgmt_tx_ant,
+ il->hw_params.valid_tx_ant);
+
+ rate_flags |= il4965_ant_idx_to_flags(il->mgmt_tx_ant);
+
+ /* Set the rate in the TX cmd */
+ tx_cmd->rate_n_flags =
+ il4965_hw_set_rate_n_flags(rate_plcp, rate_flags);
+}
+
+static void
+il4965_tx_cmd_build_hwcrypto(struct il_priv *il, struct ieee80211_tx_info *info,
+ struct il_tx_cmd *tx_cmd, struct sk_buff *skb_frag,
+ int sta_id)
+{
+ struct ieee80211_key_conf *keyconf = info->control.hw_key;
+
+ switch (keyconf->cipher) {
+ case WLAN_CIPHER_SUITE_CCMP:
+ tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
+ memcpy(tx_cmd->key, keyconf->key, keyconf->keylen);
+ if (info->flags & IEEE80211_TX_CTL_AMPDU)
+ tx_cmd->tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
+ D_TX("tx_cmd with AES hwcrypto\n");
+ break;
+
+ case WLAN_CIPHER_SUITE_TKIP:
+ tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
+ ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
+ D_TX("tx_cmd with tkip hwcrypto\n");
+ break;
+
+ case WLAN_CIPHER_SUITE_WEP104:
+ tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
+ /* fall through */
+ case WLAN_CIPHER_SUITE_WEP40:
+ tx_cmd->sec_ctl |=
+ (TX_CMD_SEC_WEP | (keyconf->keyidx & TX_CMD_SEC_MSK) <<
+ TX_CMD_SEC_SHIFT);
+
+ memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
+
+ D_TX("Configuring packet for WEP encryption " "with key %d\n",
+ keyconf->keyidx);
+ break;
+
+ default:
+ IL_ERR("Unknown encode cipher %x\n", keyconf->cipher);
+ break;
+ }
+}
+
+/*
+ * start C_TX command process
+ */
+int
+il4965_tx_skb(struct il_priv *il, struct sk_buff *skb)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *sta = info->control.sta;
+ struct il_station_priv *sta_priv = NULL;
+ struct il_tx_queue *txq;
+ struct il_queue *q;
+ struct il_device_cmd *out_cmd;
+ struct il_cmd_meta *out_meta;
+ struct il_tx_cmd *tx_cmd;
+ struct il_rxon_context *ctx = &il->ctx;
+ int txq_id;
+ dma_addr_t phys_addr;
+ dma_addr_t txcmd_phys;
+ dma_addr_t scratch_phys;
+ u16 len, firstlen, secondlen;
+ u16 seq_number = 0;
+ __le16 fc;
+ u8 hdr_len;
+ u8 sta_id;
+ u8 wait_write_ptr = 0;
+ u8 tid = 0;
+ u8 *qc = NULL;
+ unsigned long flags;
+ bool is_agg = false;
+
+ if (info->control.vif)
+ ctx = il_rxon_ctx_from_vif(info->control.vif);
+
+ spin_lock_irqsave(&il->lock, flags);
+ if (il_is_rfkill(il)) {
+ D_DROP("Dropping - RF KILL\n");
+ goto drop_unlock;
+ }
+
+ fc = hdr->frame_control;
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (ieee80211_is_auth(fc))
+ D_TX("Sending AUTH frame\n");
+ else if (ieee80211_is_assoc_req(fc))
+ D_TX("Sending ASSOC frame\n");
+ else if (ieee80211_is_reassoc_req(fc))
+ D_TX("Sending REASSOC frame\n");
+#endif
+
+ hdr_len = ieee80211_hdrlen(fc);
+
+ /* For management frames use broadcast id to do not break aggregation */
+ if (!ieee80211_is_data(fc))
+ sta_id = ctx->bcast_sta_id;
+ else {
+ /* Find idx into station table for destination station */
+ sta_id = il_sta_id_or_broadcast(il, ctx, info->control.sta);
+
+ if (sta_id == IL_INVALID_STATION) {
+ D_DROP("Dropping - INVALID STATION: %pM\n", hdr->addr1);
+ goto drop_unlock;
+ }
+ }
+
+ D_TX("station Id %d\n", sta_id);
+
+ if (sta)
+ sta_priv = (void *)sta->drv_priv;
+
+ if (sta_priv && sta_priv->asleep &&
+ (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
+ /*
+ * This sends an asynchronous command to the device,
+ * but we can rely on it being processed before the
+ * next frame is processed -- and the next frame to
+ * this station is the one that will consume this
+ * counter.
+ * For now set the counter to just 1 since we do not
+ * support uAPSD yet.
+ */
+ il4965_sta_modify_sleep_tx_count(il, sta_id, 1);
+ }
+
+ /*
+ * Send this frame after DTIM -- there's a special queue
+ * reserved for this for contexts that support AP mode.
+ */
+ if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
+ txq_id = ctx->mcast_queue;
+ /*
+ * The microcode will clear the more data
+ * bit in the last frame it transmits.
+ */
+ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
+ } else
+ txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)];
+
+ /* irqs already disabled/saved above when locking il->lock */
+ spin_lock(&il->sta_lock);
+
+ if (ieee80211_is_data_qos(fc)) {
+ qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
+ if (WARN_ON_ONCE(tid >= MAX_TID_COUNT)) {
+ spin_unlock(&il->sta_lock);
+ goto drop_unlock;
+ }
+ seq_number = il->stations[sta_id].tid[tid].seq_number;
+ seq_number &= IEEE80211_SCTL_SEQ;
+ hdr->seq_ctrl =
+ hdr->seq_ctrl & cpu_to_le16(IEEE80211_SCTL_FRAG);
+ hdr->seq_ctrl |= cpu_to_le16(seq_number);
+ seq_number += 0x10;
+ /* aggregation is on for this <sta,tid> */
+ if (info->flags & IEEE80211_TX_CTL_AMPDU &&
+ il->stations[sta_id].tid[tid].agg.state == IL_AGG_ON) {
+ txq_id = il->stations[sta_id].tid[tid].agg.txq_id;
+ is_agg = true;
+ }
+ }
+
+ txq = &il->txq[txq_id];
+ q = &txq->q;
+
+ if (unlikely(il_queue_space(q) < q->high_mark)) {
+ spin_unlock(&il->sta_lock);
+ goto drop_unlock;
+ }
+
+ if (ieee80211_is_data_qos(fc)) {
+ il->stations[sta_id].tid[tid].tfds_in_queue++;
+ if (!ieee80211_has_morefrags(fc))
+ il->stations[sta_id].tid[tid].seq_number = seq_number;
+ }
+
+ spin_unlock(&il->sta_lock);
+
+ /* Set up driver data for this TFD */
+ memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct il_tx_info));
+ txq->txb[q->write_ptr].skb = skb;
+ txq->txb[q->write_ptr].ctx = ctx;
+
+ /* Set up first empty entry in queue's array of Tx/cmd buffers */
+ out_cmd = txq->cmd[q->write_ptr];
+ out_meta = &txq->meta[q->write_ptr];
+ tx_cmd = &out_cmd->cmd.tx;
+ memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
+ memset(tx_cmd, 0, sizeof(struct il_tx_cmd));
+
+ /*
+ * Set up the Tx-command (not MAC!) header.
+ * Store the chosen Tx queue and TFD idx within the sequence field;
+ * after Tx, uCode's Tx response will return this value so driver can
+ * locate the frame within the tx queue and do post-tx processing.
+ */
+ out_cmd->hdr.cmd = C_TX;
+ out_cmd->hdr.sequence =
+ cpu_to_le16((u16)
+ (QUEUE_TO_SEQ(txq_id) | IDX_TO_SEQ(q->write_ptr)));
+
+ /* Copy MAC header from skb into command buffer */
+ memcpy(tx_cmd->hdr, hdr, hdr_len);
+
+ /* Total # bytes to be transmitted */
+ len = (u16) skb->len;
+ tx_cmd->len = cpu_to_le16(len);
+
+ if (info->control.hw_key)
+ il4965_tx_cmd_build_hwcrypto(il, info, tx_cmd, skb, sta_id);
+
+ /* TODO need this for burst mode later on */
+ il4965_tx_cmd_build_basic(il, skb, tx_cmd, info, hdr, sta_id);
+ il_dbg_log_tx_data_frame(il, len, hdr);
+
+ il4965_tx_cmd_build_rate(il, tx_cmd, info, fc);
+
+ il_update_stats(il, true, fc, len);
+ /*
+ * Use the first empty entry in this queue's command buffer array
+ * to contain the Tx command and MAC header concatenated together
+ * (payload data will be in another buffer).
+ * Size of this varies, due to varying MAC header length.
+ * If end is not dword aligned, we'll have 2 extra bytes at the end
+ * of the MAC header (device reads on dword boundaries).
+ * We'll tell device about this padding later.
+ */
+ len = sizeof(struct il_tx_cmd) + sizeof(struct il_cmd_header) + hdr_len;
+ firstlen = (len + 3) & ~3;
+
+ /* Tell NIC about any 2-byte padding after MAC header */
+ if (firstlen != len)
+ tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
+
+ /* Physical address of this Tx command's header (not MAC header!),
+ * within command buffer array. */
+ txcmd_phys =
+ pci_map_single(il->pci_dev, &out_cmd->hdr, firstlen,
+ PCI_DMA_BIDIRECTIONAL);
+ dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
+ dma_unmap_len_set(out_meta, len, firstlen);
+ /* Add buffer containing Tx command and MAC(!) header to TFD's
+ * first entry */
+ il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, txcmd_phys, firstlen,
+ 1, 0);
+
+ if (!ieee80211_has_morefrags(hdr->frame_control)) {
+ txq->need_update = 1;
+ } else {
+ wait_write_ptr = 1;
+ txq->need_update = 0;
+ }
+
+ /* Set up TFD's 2nd entry to point directly to remainder of skb,
+ * if any (802.11 null frames have no payload). */
+ secondlen = skb->len - hdr_len;
+ if (secondlen > 0) {
+ phys_addr =
+ pci_map_single(il->pci_dev, skb->data + hdr_len, secondlen,
+ PCI_DMA_TODEVICE);
+ il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr,
+ secondlen, 0, 0);
+ }
+
+ scratch_phys =
+ txcmd_phys + sizeof(struct il_cmd_header) +
+ offsetof(struct il_tx_cmd, scratch);
+
+ /* take back ownership of DMA buffer to enable update */
+ pci_dma_sync_single_for_cpu(il->pci_dev, txcmd_phys, firstlen,
+ PCI_DMA_BIDIRECTIONAL);
+ tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys);
+ tx_cmd->dram_msb_ptr = il_get_dma_hi_addr(scratch_phys);
+
+ D_TX("sequence nr = 0X%x\n", le16_to_cpu(out_cmd->hdr.sequence));
+ D_TX("tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags));
+ il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd, sizeof(*tx_cmd));
+ il_print_hex_dump(il, IL_DL_TX, (u8 *) tx_cmd->hdr, hdr_len);
+
+ /* Set up entry for this TFD in Tx byte-count array */
+ if (info->flags & IEEE80211_TX_CTL_AMPDU)
+ il->cfg->ops->lib->txq_update_byte_cnt_tbl(il, txq,
+ le16_to_cpu(tx_cmd->
+ len));
+
+ pci_dma_sync_single_for_device(il->pci_dev, txcmd_phys, firstlen,
+ PCI_DMA_BIDIRECTIONAL);
+
+ /* Tell device the write idx *just past* this latest filled TFD */
+ q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd);
+ il_txq_update_write_ptr(il, txq);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /*
+ * At this point the frame is "transmitted" successfully
+ * and we will get a TX status notification eventually,
+ * regardless of the value of ret. "ret" only indicates
+ * whether or not we should update the write pointer.
+ */
+
+ /*
+ * Avoid atomic ops if it isn't an associated client.
+ * Also, if this is a packet for aggregation, don't
+ * increase the counter because the ucode will stop
+ * aggregation queues when their respective station
+ * goes to sleep.
+ */
+ if (sta_priv && sta_priv->client && !is_agg)
+ atomic_inc(&sta_priv->pending_frames);
+
+ if (il_queue_space(q) < q->high_mark && il->mac80211_registered) {
+ if (wait_write_ptr) {
+ spin_lock_irqsave(&il->lock, flags);
+ txq->need_update = 1;
+ il_txq_update_write_ptr(il, txq);
+ spin_unlock_irqrestore(&il->lock, flags);
+ } else {
+ il_stop_queue(il, txq);
+ }
+ }
+
+ return 0;
+
+drop_unlock:
+ spin_unlock_irqrestore(&il->lock, flags);
+ return -1;
+}
+
+static inline int
+il4965_alloc_dma_ptr(struct il_priv *il, struct il_dma_ptr *ptr, size_t size)
+{
+ ptr->addr =
+ dma_alloc_coherent(&il->pci_dev->dev, size, &ptr->dma, GFP_KERNEL);
+ if (!ptr->addr)
+ return -ENOMEM;
+ ptr->size = size;
+ return 0;
+}
+
+static inline void
+il4965_free_dma_ptr(struct il_priv *il, struct il_dma_ptr *ptr)
+{
+ if (unlikely(!ptr->addr))
+ return;
+
+ dma_free_coherent(&il->pci_dev->dev, ptr->size, ptr->addr, ptr->dma);
+ memset(ptr, 0, sizeof(*ptr));
+}
+
+/**
+ * il4965_hw_txq_ctx_free - Free TXQ Context
+ *
+ * Destroy all TX DMA queues and structures
+ */
+void
+il4965_hw_txq_ctx_free(struct il_priv *il)
+{
+ int txq_id;
+
+ /* Tx queues */
+ if (il->txq) {
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++)
+ if (txq_id == il->cmd_queue)
+ il_cmd_queue_free(il);
+ else
+ il_tx_queue_free(il, txq_id);
+ }
+ il4965_free_dma_ptr(il, &il->kw);
+
+ il4965_free_dma_ptr(il, &il->scd_bc_tbls);
+
+ /* free tx queue structure */
+ il_txq_mem(il);
+}
+
+/**
+ * il4965_txq_ctx_alloc - allocate TX queue context
+ * Allocate all Tx DMA structures and initialize them
+ *
+ * @param il
+ * @return error code
+ */
+int
+il4965_txq_ctx_alloc(struct il_priv *il)
+{
+ int ret;
+ int txq_id, slots_num;
+ unsigned long flags;
+
+ /* Free all tx/cmd queues and keep-warm buffer */
+ il4965_hw_txq_ctx_free(il);
+
+ ret =
+ il4965_alloc_dma_ptr(il, &il->scd_bc_tbls,
+ il->hw_params.scd_bc_tbls_size);
+ if (ret) {
+ IL_ERR("Scheduler BC Table allocation failed\n");
+ goto error_bc_tbls;
+ }
+ /* Alloc keep-warm buffer */
+ ret = il4965_alloc_dma_ptr(il, &il->kw, IL_KW_SIZE);
+ if (ret) {
+ IL_ERR("Keep Warm allocation failed\n");
+ goto error_kw;
+ }
+
+ /* allocate tx queue structure */
+ ret = il_alloc_txq_mem(il);
+ if (ret)
+ goto error;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Turn off all Tx DMA fifos */
+ il4965_txq_set_sched(il, 0);
+
+ /* Tell NIC where to find the "keep warm" buffer */
+ il_wr(il, FH49_KW_MEM_ADDR_REG, il->kw.dma >> 4);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /* Alloc and init all Tx queues, including the command queue (#4/#9) */
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
+ slots_num =
+ (txq_id ==
+ il->cmd_queue) ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ ret = il_tx_queue_init(il, &il->txq[txq_id], slots_num, txq_id);
+ if (ret) {
+ IL_ERR("Tx %d queue init failed\n", txq_id);
+ goto error;
+ }
+ }
+
+ return ret;
+
+error:
+ il4965_hw_txq_ctx_free(il);
+ il4965_free_dma_ptr(il, &il->kw);
+error_kw:
+ il4965_free_dma_ptr(il, &il->scd_bc_tbls);
+error_bc_tbls:
+ return ret;
+}
+
+void
+il4965_txq_ctx_reset(struct il_priv *il)
+{
+ int txq_id, slots_num;
+ unsigned long flags;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Turn off all Tx DMA fifos */
+ il4965_txq_set_sched(il, 0);
+
+ /* Tell NIC where to find the "keep warm" buffer */
+ il_wr(il, FH49_KW_MEM_ADDR_REG, il->kw.dma >> 4);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /* Alloc and init all Tx queues, including the command queue (#4) */
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++) {
+ slots_num =
+ txq_id == il->cmd_queue ? TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
+ il_tx_queue_reset(il, &il->txq[txq_id], slots_num, txq_id);
+ }
+}
+
+/**
+ * il4965_txq_ctx_stop - Stop all Tx DMA channels
+ */
+void
+il4965_txq_ctx_stop(struct il_priv *il)
+{
+ int ch, txq_id;
+ unsigned long flags;
+
+ /* Turn off all Tx DMA fifos */
+ spin_lock_irqsave(&il->lock, flags);
+
+ il4965_txq_set_sched(il, 0);
+
+ /* Stop each Tx DMA channel, and wait for it to be idle */
+ for (ch = 0; ch < il->hw_params.dma_chnl_num; ch++) {
+ il_wr(il, FH49_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0);
+ if (il_poll_bit
+ (il, FH49_TSSR_TX_STATUS_REG,
+ FH49_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch), 1000))
+ IL_ERR("Failing on timeout while stopping"
+ " DMA channel %d [0x%08x]", ch,
+ il_rd(il, FH49_TSSR_TX_STATUS_REG));
+ }
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ if (!il->txq)
+ return;
+
+ /* Unmap DMA from host system and free skb's */
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++)
+ if (txq_id == il->cmd_queue)
+ il_cmd_queue_unmap(il);
+ else
+ il_tx_queue_unmap(il, txq_id);
+}
+
+/*
+ * Find first available (lowest unused) Tx Queue, mark it "active".
+ * Called only when finding queue for aggregation.
+ * Should never return anything < 7, because they should already
+ * be in use as EDCA AC (0-3), Command (4), reserved (5, 6)
+ */
+static int
+il4965_txq_ctx_activate_free(struct il_priv *il)
+{
+ int txq_id;
+
+ for (txq_id = 0; txq_id < il->hw_params.max_txq_num; txq_id++)
+ if (!test_and_set_bit(txq_id, &il->txq_ctx_active_msk))
+ return txq_id;
+ return -1;
+}
+
+/**
+ * il4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
+ */
+static void
+il4965_tx_queue_stop_scheduler(struct il_priv *il, u16 txq_id)
+{
+ /* Simply stop the queue, but don't change any configuration;
+ * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
+ il_wr_prph(il, IL49_SCD_QUEUE_STATUS_BITS(txq_id),
+ (0 << IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
+ (1 << IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
+}
+
+/**
+ * il4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
+ */
+static int
+il4965_tx_queue_set_q2ratid(struct il_priv *il, u16 ra_tid, u16 txq_id)
+{
+ u32 tbl_dw_addr;
+ u32 tbl_dw;
+ u16 scd_q2ratid;
+
+ scd_q2ratid = ra_tid & IL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
+
+ tbl_dw_addr =
+ il->scd_base_addr + IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
+
+ tbl_dw = il_read_targ_mem(il, tbl_dw_addr);
+
+ if (txq_id & 0x1)
+ tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
+ else
+ tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
+
+ il_write_targ_mem(il, tbl_dw_addr, tbl_dw);
+
+ return 0;
+}
+
+/**
+ * il4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
+ *
+ * NOTE: txq_id must be greater than IL49_FIRST_AMPDU_QUEUE,
+ * i.e. it must be one of the higher queues used for aggregation
+ */
+static int
+il4965_txq_agg_enable(struct il_priv *il, int txq_id, int tx_fifo, int sta_id,
+ int tid, u16 ssn_idx)
+{
+ unsigned long flags;
+ u16 ra_tid;
+ int ret;
+
+ if ((IL49_FIRST_AMPDU_QUEUE > txq_id) ||
+ (IL49_FIRST_AMPDU_QUEUE +
+ il->cfg->base_params->num_of_ampdu_queues <= txq_id)) {
+ IL_WARN("queue number out of range: %d, must be %d to %d\n",
+ txq_id, IL49_FIRST_AMPDU_QUEUE,
+ IL49_FIRST_AMPDU_QUEUE +
+ il->cfg->base_params->num_of_ampdu_queues - 1);
+ return -EINVAL;
+ }
+
+ ra_tid = BUILD_RAxTID(sta_id, tid);
+
+ /* Modify device's station table to Tx this TID */
+ ret = il4965_sta_tx_modify_enable_tid(il, sta_id, tid);
+ if (ret)
+ return ret;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Stop this Tx queue before configuring it */
+ il4965_tx_queue_stop_scheduler(il, txq_id);
+
+ /* Map receiver-address / traffic-ID to this queue */
+ il4965_tx_queue_set_q2ratid(il, ra_tid, txq_id);
+
+ /* Set this queue as a chain-building queue */
+ il_set_bits_prph(il, IL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
+
+ /* Place first TFD at idx corresponding to start sequence number.
+ * Assumes that ssn_idx is valid (!= 0xFFF) */
+ il->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ il->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ il4965_set_wr_ptrs(il, txq_id, ssn_idx);
+
+ /* Set up Tx win size and frame limit for this queue */
+ il_write_targ_mem(il,
+ il->scd_base_addr +
+ IL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id),
+ (SCD_WIN_SIZE << IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS)
+ & IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
+
+ il_write_targ_mem(il,
+ il->scd_base_addr +
+ IL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32),
+ (SCD_FRAME_LIMIT <<
+ IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
+ IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
+
+ il_set_bits_prph(il, IL49_SCD_INTERRUPT_MASK, (1 << txq_id));
+
+ /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
+ il4965_tx_queue_set_status(il, &il->txq[txq_id], tx_fifo, 1);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ return 0;
+}
+
+int
+il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, u16 tid, u16 * ssn)
+{
+ int sta_id;
+ int tx_fifo;
+ int txq_id;
+ int ret;
+ unsigned long flags;
+ struct il_tid_data *tid_data;
+
+ tx_fifo = il4965_get_fifo_from_tid(il_rxon_ctx_from_vif(vif), tid);
+ if (unlikely(tx_fifo < 0))
+ return tx_fifo;
+
+ D_HT("%s on ra = %pM tid = %d\n", __func__, sta->addr, tid);
+
+ sta_id = il_sta_id(sta);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Start AGG on invalid station\n");
+ return -ENXIO;
+ }
+ if (unlikely(tid >= MAX_TID_COUNT))
+ return -EINVAL;
+
+ if (il->stations[sta_id].tid[tid].agg.state != IL_AGG_OFF) {
+ IL_ERR("Start AGG when state is not IL_AGG_OFF !\n");
+ return -ENXIO;
+ }
+
+ txq_id = il4965_txq_ctx_activate_free(il);
+ if (txq_id == -1) {
+ IL_ERR("No free aggregation queue available\n");
+ return -ENXIO;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ tid_data = &il->stations[sta_id].tid[tid];
+ *ssn = SEQ_TO_SN(tid_data->seq_number);
+ tid_data->agg.txq_id = txq_id;
+ il_set_swq_id(&il->txq[txq_id], il4965_get_ac_from_tid(tid), txq_id);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ ret = il4965_txq_agg_enable(il, txq_id, tx_fifo, sta_id, tid, *ssn);
+ if (ret)
+ return ret;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ tid_data = &il->stations[sta_id].tid[tid];
+ if (tid_data->tfds_in_queue == 0) {
+ D_HT("HW queue is empty\n");
+ tid_data->agg.state = IL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+ } else {
+ D_HT("HW queue is NOT empty: %d packets in HW queue\n",
+ tid_data->tfds_in_queue);
+ tid_data->agg.state = IL_EMPTYING_HW_QUEUE_ADDBA;
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return ret;
+}
+
+/**
+ * txq_id must be greater than IL49_FIRST_AMPDU_QUEUE
+ * il->lock must be held by the caller
+ */
+static int
+il4965_txq_agg_disable(struct il_priv *il, u16 txq_id, u16 ssn_idx, u8 tx_fifo)
+{
+ if ((IL49_FIRST_AMPDU_QUEUE > txq_id) ||
+ (IL49_FIRST_AMPDU_QUEUE +
+ il->cfg->base_params->num_of_ampdu_queues <= txq_id)) {
+ IL_WARN("queue number out of range: %d, must be %d to %d\n",
+ txq_id, IL49_FIRST_AMPDU_QUEUE,
+ IL49_FIRST_AMPDU_QUEUE +
+ il->cfg->base_params->num_of_ampdu_queues - 1);
+ return -EINVAL;
+ }
+
+ il4965_tx_queue_stop_scheduler(il, txq_id);
+
+ il_clear_bits_prph(il, IL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
+
+ il->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
+ il->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ /* supposes that ssn_idx is valid (!= 0xFFF) */
+ il4965_set_wr_ptrs(il, txq_id, ssn_idx);
+
+ il_clear_bits_prph(il, IL49_SCD_INTERRUPT_MASK, (1 << txq_id));
+ il_txq_ctx_deactivate(il, txq_id);
+ il4965_tx_queue_set_status(il, &il->txq[txq_id], tx_fifo, 0);
+
+ return 0;
+}
+
+int
+il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, u16 tid)
+{
+ int tx_fifo_id, txq_id, sta_id, ssn;
+ struct il_tid_data *tid_data;
+ int write_ptr, read_ptr;
+ unsigned long flags;
+
+ tx_fifo_id = il4965_get_fifo_from_tid(il_rxon_ctx_from_vif(vif), tid);
+ if (unlikely(tx_fifo_id < 0))
+ return tx_fifo_id;
+
+ sta_id = il_sta_id(sta);
+
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Invalid station for AGG tid %d\n", tid);
+ return -ENXIO;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ tid_data = &il->stations[sta_id].tid[tid];
+ ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
+ txq_id = tid_data->agg.txq_id;
+
+ switch (il->stations[sta_id].tid[tid].agg.state) {
+ case IL_EMPTYING_HW_QUEUE_ADDBA:
+ /*
+ * This can happen if the peer stops aggregation
+ * again before we've had a chance to drain the
+ * queue we selected previously, i.e. before the
+ * session was really started completely.
+ */
+ D_HT("AGG stop before setup done\n");
+ goto turn_off;
+ case IL_AGG_ON:
+ break;
+ default:
+ IL_WARN("Stopping AGG while state not ON or starting\n");
+ }
+
+ write_ptr = il->txq[txq_id].q.write_ptr;
+ read_ptr = il->txq[txq_id].q.read_ptr;
+
+ /* The queue is not empty */
+ if (write_ptr != read_ptr) {
+ D_HT("Stopping a non empty AGG HW QUEUE\n");
+ il->stations[sta_id].tid[tid].agg.state =
+ IL_EMPTYING_HW_QUEUE_DELBA;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return 0;
+ }
+
+ D_HT("HW queue is empty\n");
+turn_off:
+ il->stations[sta_id].tid[tid].agg.state = IL_AGG_OFF;
+
+ /* do not restore/save irqs */
+ spin_unlock(&il->sta_lock);
+ spin_lock(&il->lock);
+
+ /*
+ * the only reason this call can fail is queue number out of range,
+ * which can happen if uCode is reloaded and all the station
+ * information are lost. if it is outside the range, there is no need
+ * to deactivate the uCode queue, just return "success" to allow
+ * mac80211 to clean up it own data.
+ */
+ il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo_id);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+
+ return 0;
+}
+
+int
+il4965_txq_check_empty(struct il_priv *il, int sta_id, u8 tid, int txq_id)
+{
+ struct il_queue *q = &il->txq[txq_id].q;
+ u8 *addr = il->stations[sta_id].sta.sta.addr;
+ struct il_tid_data *tid_data = &il->stations[sta_id].tid[tid];
+ struct il_rxon_context *ctx;
+
+ ctx = &il->ctx;
+
+ lockdep_assert_held(&il->sta_lock);
+
+ switch (il->stations[sta_id].tid[tid].agg.state) {
+ case IL_EMPTYING_HW_QUEUE_DELBA:
+ /* We are reclaiming the last packet of the */
+ /* aggregated HW queue */
+ if (txq_id == tid_data->agg.txq_id &&
+ q->read_ptr == q->write_ptr) {
+ u16 ssn = SEQ_TO_SN(tid_data->seq_number);
+ int tx_fifo = il4965_get_fifo_from_tid(ctx, tid);
+ D_HT("HW queue empty: continue DELBA flow\n");
+ il4965_txq_agg_disable(il, txq_id, ssn, tx_fifo);
+ tid_data->agg.state = IL_AGG_OFF;
+ ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
+ }
+ break;
+ case IL_EMPTYING_HW_QUEUE_ADDBA:
+ /* We are reclaiming the last packet of the queue */
+ if (tid_data->tfds_in_queue == 0) {
+ D_HT("HW queue empty: continue ADDBA flow\n");
+ tid_data->agg.state = IL_AGG_ON;
+ ieee80211_start_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static void
+il4965_non_agg_tx_status(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr1)
+{
+ struct ieee80211_sta *sta;
+ struct il_station_priv *sta_priv;
+
+ rcu_read_lock();
+ sta = ieee80211_find_sta(ctx->vif, addr1);
+ if (sta) {
+ sta_priv = (void *)sta->drv_priv;
+ /* avoid atomic ops if this isn't a client */
+ if (sta_priv->client &&
+ atomic_dec_return(&sta_priv->pending_frames) == 0)
+ ieee80211_sta_block_awake(il->hw, sta, false);
+ }
+ rcu_read_unlock();
+}
+
+static void
+il4965_tx_status(struct il_priv *il, struct il_tx_info *tx_info, bool is_agg)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data;
+
+ if (!is_agg)
+ il4965_non_agg_tx_status(il, tx_info->ctx, hdr->addr1);
+
+ ieee80211_tx_status_irqsafe(il->hw, tx_info->skb);
+}
+
+int
+il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx)
+{
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct il_queue *q = &txq->q;
+ struct il_tx_info *tx_info;
+ int nfreed = 0;
+ struct ieee80211_hdr *hdr;
+
+ if (idx >= q->n_bd || il_queue_used(q, idx) == 0) {
+ IL_ERR("Read idx for DMA queue txq id (%d), idx %d, "
+ "is out of range [0-%d] %d %d.\n", txq_id, idx, q->n_bd,
+ q->write_ptr, q->read_ptr);
+ return 0;
+ }
+
+ for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
+ q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+
+ tx_info = &txq->txb[txq->q.read_ptr];
+
+ if (WARN_ON_ONCE(tx_info->skb == NULL))
+ continue;
+
+ hdr = (struct ieee80211_hdr *)tx_info->skb->data;
+ if (ieee80211_is_data_qos(hdr->frame_control))
+ nfreed++;
+
+ il4965_tx_status(il, tx_info,
+ txq_id >= IL4965_FIRST_AMPDU_QUEUE);
+ tx_info->skb = NULL;
+
+ il->cfg->ops->lib->txq_free_tfd(il, txq);
+ }
+ return nfreed;
+}
+
+/**
+ * il4965_tx_status_reply_compressed_ba - Update tx status from block-ack
+ *
+ * Go through block-ack's bitmap of ACK'd frames, update driver's record of
+ * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
+ */
+static int
+il4965_tx_status_reply_compressed_ba(struct il_priv *il, struct il_ht_agg *agg,
+ struct il_compressed_ba_resp *ba_resp)
+{
+ int i, sh, ack;
+ u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+ int successes = 0;
+ struct ieee80211_tx_info *info;
+ u64 bitmap, sent_bitmap;
+
+ if (unlikely(!agg->wait_for_ba)) {
+ if (unlikely(ba_resp->bitmap))
+ IL_ERR("Received BA when not expected\n");
+ return -EINVAL;
+ }
+
+ /* Mark that the expected block-ack response arrived */
+ agg->wait_for_ba = 0;
+ D_TX_REPLY("BA %d %d\n", agg->start_idx, ba_resp->seq_ctl);
+
+ /* Calculate shift to align block-ack bits with our Tx win bits */
+ sh = agg->start_idx - SEQ_TO_IDX(seq_ctl >> 4);
+ if (sh < 0) /* tbw something is wrong with indices */
+ sh += 0x100;
+
+ if (agg->frame_count > (64 - sh)) {
+ D_TX_REPLY("more frames than bitmap size");
+ return -1;
+ }
+
+ /* don't use 64-bit values for now */
+ bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
+
+ /* check for success or failure according to the
+ * transmitted bitmap and block-ack bitmap */
+ sent_bitmap = bitmap & agg->bitmap;
+
+ /* For each frame attempted in aggregation,
+ * update driver's record of tx frame's status. */
+ i = 0;
+ while (sent_bitmap) {
+ ack = sent_bitmap & 1ULL;
+ successes += ack;
+ D_TX_REPLY("%s ON i=%d idx=%d raw=%d\n", ack ? "ACK" : "NACK",
+ i, (agg->start_idx + i) & 0xff, agg->start_idx + i);
+ sent_bitmap >>= 1;
+ ++i;
+ }
+
+ D_TX_REPLY("Bitmap %llx\n", (unsigned long long)bitmap);
+
+ info = IEEE80211_SKB_CB(il->txq[scd_flow].txb[agg->start_idx].skb);
+ memset(&info->status, 0, sizeof(info->status));
+ info->flags |= IEEE80211_TX_STAT_ACK;
+ info->flags |= IEEE80211_TX_STAT_AMPDU;
+ info->status.ampdu_ack_len = successes;
+ info->status.ampdu_len = agg->frame_count;
+ il4965_hwrate_to_tx_control(il, agg->rate_n_flags, info);
+
+ return 0;
+}
+
+/**
+ * translate ucode response to mac80211 tx status control values
+ */
+void
+il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags,
+ struct ieee80211_tx_info *info)
+{
+ struct ieee80211_tx_rate *r = &info->control.rates[0];
+
+ info->antenna_sel_tx =
+ ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
+ if (rate_n_flags & RATE_MCS_HT_MSK)
+ r->flags |= IEEE80211_TX_RC_MCS;
+ if (rate_n_flags & RATE_MCS_GF_MSK)
+ r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
+ if (rate_n_flags & RATE_MCS_HT40_MSK)
+ r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
+ r->flags |= IEEE80211_TX_RC_DUP_DATA;
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ r->flags |= IEEE80211_TX_RC_SHORT_GI;
+ r->idx = il4965_hwrate_to_mac80211_idx(rate_n_flags, info->band);
+}
+
+/**
+ * il4965_hdl_compressed_ba - Handler for N_COMPRESSED_BA
+ *
+ * Handles block-acknowledge notification from device, which reports success
+ * of frames sent via aggregation.
+ */
+void
+il4965_hdl_compressed_ba(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
+ struct il_tx_queue *txq = NULL;
+ struct il_ht_agg *agg;
+ int idx;
+ int sta_id;
+ int tid;
+ unsigned long flags;
+
+ /* "flow" corresponds to Tx queue */
+ u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
+
+ /* "ssn" is start of block-ack Tx win, corresponds to idx
+ * (in Tx queue's circular buffer) of first TFD/frame in win */
+ u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
+
+ if (scd_flow >= il->hw_params.max_txq_num) {
+ IL_ERR("BUG_ON scd_flow is bigger than number of queues\n");
+ return;
+ }
+
+ txq = &il->txq[scd_flow];
+ sta_id = ba_resp->sta_id;
+ tid = ba_resp->tid;
+ agg = &il->stations[sta_id].tid[tid].agg;
+ if (unlikely(agg->txq_id != scd_flow)) {
+ /*
+ * FIXME: this is a uCode bug which need to be addressed,
+ * log the information and return for now!
+ * since it is possible happen very often and in order
+ * not to fill the syslog, don't enable the logging by default
+ */
+ D_TX_REPLY("BA scd_flow %d does not match txq_id %d\n",
+ scd_flow, agg->txq_id);
+ return;
+ }
+
+ /* Find idx just before block-ack win */
+ idx = il_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ D_TX_REPLY("N_COMPRESSED_BA [%d] Received from %pM, " "sta_id = %d\n",
+ agg->wait_for_ba, (u8 *) &ba_resp->sta_addr_lo32,
+ ba_resp->sta_id);
+ D_TX_REPLY("TID = %d, SeqCtl = %d, bitmap = 0x%llx," "scd_flow = "
+ "%d, scd_ssn = %d\n", ba_resp->tid, ba_resp->seq_ctl,
+ (unsigned long long)le64_to_cpu(ba_resp->bitmap),
+ ba_resp->scd_flow, ba_resp->scd_ssn);
+ D_TX_REPLY("DAT start_idx = %d, bitmap = 0x%llx\n", agg->start_idx,
+ (unsigned long long)agg->bitmap);
+
+ /* Update driver's record of ACK vs. not for each frame in win */
+ il4965_tx_status_reply_compressed_ba(il, agg, ba_resp);
+
+ /* Release all TFDs before the SSN, i.e. all TFDs in front of
+ * block-ack win (we assume that they've been successfully
+ * transmitted ... if not, it's too late anyway). */
+ if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
+ /* calculate mac80211 ampdu sw queue to wake */
+ int freed = il4965_tx_queue_reclaim(il, scd_flow, idx);
+ il4965_free_tfds_in_queue(il, sta_id, tid, freed);
+
+ if (il_queue_space(&txq->q) > txq->q.low_mark &&
+ il->mac80211_registered &&
+ agg->state != IL_EMPTYING_HW_QUEUE_DELBA)
+ il_wake_queue(il, txq);
+
+ il4965_txq_check_empty(il, sta_id, tid, scd_flow);
+ }
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+}
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+const char *
+il4965_get_tx_fail_reason(u32 status)
+{
+#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
+#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
+
+ switch (status & TX_STATUS_MSK) {
+ case TX_STATUS_SUCCESS:
+ return "SUCCESS";
+ TX_STATUS_POSTPONE(DELAY);
+ TX_STATUS_POSTPONE(FEW_BYTES);
+ TX_STATUS_POSTPONE(QUIET_PERIOD);
+ TX_STATUS_POSTPONE(CALC_TTAK);
+ TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
+ TX_STATUS_FAIL(SHORT_LIMIT);
+ TX_STATUS_FAIL(LONG_LIMIT);
+ TX_STATUS_FAIL(FIFO_UNDERRUN);
+ TX_STATUS_FAIL(DRAIN_FLOW);
+ TX_STATUS_FAIL(RFKILL_FLUSH);
+ TX_STATUS_FAIL(LIFE_EXPIRE);
+ TX_STATUS_FAIL(DEST_PS);
+ TX_STATUS_FAIL(HOST_ABORTED);
+ TX_STATUS_FAIL(BT_RETRY);
+ TX_STATUS_FAIL(STA_INVALID);
+ TX_STATUS_FAIL(FRAG_DROPPED);
+ TX_STATUS_FAIL(TID_DISABLE);
+ TX_STATUS_FAIL(FIFO_FLUSHED);
+ TX_STATUS_FAIL(INSUFFICIENT_CF_POLL);
+ TX_STATUS_FAIL(PASSIVE_NO_RX);
+ TX_STATUS_FAIL(NO_BEACON_ON_RADAR);
+ }
+
+ return "UNKNOWN";
+
+#undef TX_STATUS_FAIL
+#undef TX_STATUS_POSTPONE
+}
+#endif /* CONFIG_IWLEGACY_DEBUG */
+
+static struct il_link_quality_cmd *
+il4965_sta_alloc_lq(struct il_priv *il, u8 sta_id)
+{
+ int i, r;
+ struct il_link_quality_cmd *link_cmd;
+ u32 rate_flags = 0;
+ __le32 rate_n_flags;
+
+ link_cmd = kzalloc(sizeof(struct il_link_quality_cmd), GFP_KERNEL);
+ if (!link_cmd) {
+ IL_ERR("Unable to allocate memory for LQ cmd.\n");
+ return NULL;
+ }
+ /* Set up the rate scaling to start at selected rate, fall back
+ * all the way down to 1M in IEEE order, and then spin on 1M */
+ if (il->band == IEEE80211_BAND_5GHZ)
+ r = RATE_6M_IDX;
+ else
+ r = RATE_1M_IDX;
+
+ if (r >= IL_FIRST_CCK_RATE && r <= IL_LAST_CCK_RATE)
+ rate_flags |= RATE_MCS_CCK_MSK;
+
+ rate_flags |=
+ il4965_first_antenna(il->hw_params.
+ valid_tx_ant) << RATE_MCS_ANT_POS;
+ rate_n_flags = il4965_hw_set_rate_n_flags(il_rates[r].plcp, rate_flags);
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
+ link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
+
+ link_cmd->general_params.single_stream_ant_msk =
+ il4965_first_antenna(il->hw_params.valid_tx_ant);
+
+ link_cmd->general_params.dual_stream_ant_msk =
+ il->hw_params.valid_tx_ant & ~il4965_first_antenna(il->hw_params.
+ valid_tx_ant);
+ if (!link_cmd->general_params.dual_stream_ant_msk) {
+ link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
+ } else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
+ link_cmd->general_params.dual_stream_ant_msk =
+ il->hw_params.valid_tx_ant;
+ }
+
+ link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+ link_cmd->agg_params.agg_time_limit =
+ cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+
+ link_cmd->sta_id = sta_id;
+
+ return link_cmd;
+}
+
+/*
+ * il4965_add_bssid_station - Add the special IBSS BSSID station
+ *
+ * Function sleeps.
+ */
+int
+il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, u8 *sta_id_r)
+{
+ int ret;
+ u8 sta_id;
+ struct il_link_quality_cmd *link_cmd;
+ unsigned long flags;
+
+ if (sta_id_r)
+ *sta_id_r = IL_INVALID_STATION;
+
+ ret = il_add_station_common(il, ctx, addr, 0, NULL, &sta_id);
+ if (ret) {
+ IL_ERR("Unable to add station %pM\n", addr);
+ return ret;
+ }
+
+ if (sta_id_r)
+ *sta_id_r = sta_id;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].used |= IL_STA_LOCAL;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ /* Set up default rate scaling table in device's station table */
+ link_cmd = il4965_sta_alloc_lq(il, sta_id);
+ if (!link_cmd) {
+ IL_ERR("Unable to initialize rate scaling for station %pM.\n",
+ addr);
+ return -ENOMEM;
+ }
+
+ ret = il_send_lq_cmd(il, ctx, link_cmd, CMD_SYNC, true);
+ if (ret)
+ IL_ERR("Link quality command failed (%d)\n", ret);
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].lq = link_cmd;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return 0;
+}
+
+static int
+il4965_static_wepkey_cmd(struct il_priv *il, struct il_rxon_context *ctx,
+ bool send_if_empty)
+{
+ int i, not_empty = 0;
+ u8 buff[sizeof(struct il_wep_cmd) +
+ sizeof(struct il_wep_key) * WEP_KEYS_MAX];
+ struct il_wep_cmd *wep_cmd = (struct il_wep_cmd *)buff;
+ size_t cmd_size = sizeof(struct il_wep_cmd);
+ struct il_host_cmd cmd = {
+ .id = ctx->wep_key_cmd,
+ .data = wep_cmd,
+ .flags = CMD_SYNC,
+ };
+
+ might_sleep();
+
+ memset(wep_cmd, 0,
+ cmd_size + (sizeof(struct il_wep_key) * WEP_KEYS_MAX));
+
+ for (i = 0; i < WEP_KEYS_MAX; i++) {
+ wep_cmd->key[i].key_idx = i;
+ if (ctx->wep_keys[i].key_size) {
+ wep_cmd->key[i].key_offset = i;
+ not_empty = 1;
+ } else {
+ wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
+ }
+
+ wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
+ memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
+ ctx->wep_keys[i].key_size);
+ }
+
+ wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
+ wep_cmd->num_keys = WEP_KEYS_MAX;
+
+ cmd_size += sizeof(struct il_wep_key) * WEP_KEYS_MAX;
+
+ cmd.len = cmd_size;
+
+ if (not_empty || send_if_empty)
+ return il_send_cmd(il, &cmd);
+ else
+ return 0;
+}
+
+int
+il4965_restore_default_wep_keys(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ lockdep_assert_held(&il->mutex);
+
+ return il4965_static_wepkey_cmd(il, ctx, false);
+}
+
+int
+il4965_remove_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf)
+{
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ D_WEP("Removing default WEP key: idx=%d\n", keyconf->keyidx);
+
+ memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
+ if (il_is_rfkill(il)) {
+ D_WEP("Not sending C_WEPKEY command due to RFKILL.\n");
+ /* but keys in device are clear anyway so return success */
+ return 0;
+ }
+ ret = il4965_static_wepkey_cmd(il, ctx, 1);
+ D_WEP("Remove default WEP key: idx=%d ret=%d\n", keyconf->keyidx, ret);
+
+ return ret;
+}
+
+int
+il4965_set_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf)
+{
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (keyconf->keylen != WEP_KEY_LEN_128 &&
+ keyconf->keylen != WEP_KEY_LEN_64) {
+ D_WEP("Bad WEP key length %d\n", keyconf->keylen);
+ return -EINVAL;
+ }
+
+ keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
+ keyconf->hw_key_idx = HW_KEY_DEFAULT;
+ il->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
+
+ ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
+ memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
+ keyconf->keylen);
+
+ ret = il4965_static_wepkey_cmd(il, ctx, false);
+ D_WEP("Set default WEP key: len=%d idx=%d ret=%d\n", keyconf->keylen,
+ keyconf->keyidx, ret);
+
+ return ret;
+}
+
+static int
+il4965_set_wep_dynamic_key_info(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
+
+ key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (keyconf->keylen == WEP_KEY_LEN_128)
+ key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
+
+ if (sta_id == ctx->bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+ il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+ il->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
+
+ memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen);
+
+ memcpy(&il->stations[sta_id].sta.key.key[3], keyconf->key,
+ keyconf->keylen);
+
+ if ((il->stations[sta_id].sta.key.
+ key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC)
+ il->stations[sta_id].sta.key.key_offset =
+ il_get_free_ucode_key_idx(il);
+ /* else, we are overriding an existing key => no need to allocated room
+ * in uCode. */
+
+ WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+ "no space for a new key");
+
+ il->stations[sta_id].sta.key.key_flags = key_flags;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+static int
+il4965_set_ccmp_dynamic_key_info(struct il_priv *il,
+ struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ unsigned long flags;
+ __le16 key_flags = 0;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (sta_id == ctx->bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+ il->stations[sta_id].keyinfo.keylen = keyconf->keylen;
+
+ memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, keyconf->keylen);
+
+ memcpy(il->stations[sta_id].sta.key.key, keyconf->key, keyconf->keylen);
+
+ if ((il->stations[sta_id].sta.key.
+ key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC)
+ il->stations[sta_id].sta.key.key_offset =
+ il_get_free_ucode_key_idx(il);
+ /* else, we are overriding an existing key => no need to allocated room
+ * in uCode. */
+
+ WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+ "no space for a new key");
+
+ il->stations[sta_id].sta.key.key_flags = key_flags;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+static int
+il4965_set_tkip_dynamic_key_info(struct il_priv *il,
+ struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ unsigned long flags;
+ int ret = 0;
+ __le16 key_flags = 0;
+
+ key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
+ key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
+ key_flags &= ~STA_KEY_FLG_INVALID;
+
+ if (sta_id == ctx->bcast_sta_id)
+ key_flags |= STA_KEY_MULTICAST_MSK;
+
+ keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
+ keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ il->stations[sta_id].keyinfo.cipher = keyconf->cipher;
+ il->stations[sta_id].keyinfo.keylen = 16;
+
+ if ((il->stations[sta_id].sta.key.
+ key_flags & STA_KEY_FLG_ENCRYPT_MSK) == STA_KEY_FLG_NO_ENC)
+ il->stations[sta_id].sta.key.key_offset =
+ il_get_free_ucode_key_idx(il);
+ /* else, we are overriding an existing key => no need to allocated room
+ * in uCode. */
+
+ WARN(il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
+ "no space for a new key");
+
+ il->stations[sta_id].sta.key.key_flags = key_flags;
+
+ /* This copy is acutally not needed: we get the key with each TX */
+ memcpy(il->stations[sta_id].keyinfo.key, keyconf->key, 16);
+
+ memcpy(il->stations[sta_id].sta.key.key, keyconf->key, 16);
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return ret;
+}
+
+void
+il4965_update_tkip_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf,
+ struct ieee80211_sta *sta, u32 iv32, u16 * phase1key)
+{
+ u8 sta_id;
+ unsigned long flags;
+ int i;
+
+ if (il_scan_cancel(il)) {
+ /* cancel scan failed, just live w/ bad key and rely
+ briefly on SW decryption */
+ return;
+ }
+
+ sta_id = il_sta_id_or_broadcast(il, ctx, sta);
+ if (sta_id == IL_INVALID_STATION)
+ return;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ il->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
+
+ for (i = 0; i < 5; i++)
+ il->stations[sta_id].sta.key.tkip_rx_ttak[i] =
+ cpu_to_le16(phase1key[i]);
+
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+}
+
+int
+il4965_remove_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ unsigned long flags;
+ u16 key_flags;
+ u8 keyidx;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ ctx->key_mapping_keys--;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ key_flags = le16_to_cpu(il->stations[sta_id].sta.key.key_flags);
+ keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
+
+ D_WEP("Remove dynamic key: idx=%d sta=%d\n", keyconf->keyidx, sta_id);
+
+ if (keyconf->keyidx != keyidx) {
+ /* We need to remove a key with idx different that the one
+ * in the uCode. This means that the key we need to remove has
+ * been replaced by another one with different idx.
+ * Don't do anything and return ok
+ */
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return 0;
+ }
+
+ if (il->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
+ IL_WARN("Removing wrong key %d 0x%x\n", keyconf->keyidx,
+ key_flags);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return 0;
+ }
+
+ if (!test_and_clear_bit
+ (il->stations[sta_id].sta.key.key_offset, &il->ucode_key_table))
+ IL_ERR("idx %d not used in uCode key table.\n",
+ il->stations[sta_id].sta.key.key_offset);
+ memset(&il->stations[sta_id].keyinfo, 0, sizeof(struct il_hw_key));
+ memset(&il->stations[sta_id].sta.key, 0, sizeof(struct il4965_keyinfo));
+ il->stations[sta_id].sta.key.key_flags =
+ STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
+ il->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+
+ if (il_is_rfkill(il)) {
+ D_WEP
+ ("Not sending C_ADD_STA command because RFKILL enabled.\n");
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return 0;
+ }
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int
+il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf, u8 sta_id)
+{
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ ctx->key_mapping_keys++;
+ keyconf->hw_key_idx = HW_KEY_DYNAMIC;
+
+ switch (keyconf->cipher) {
+ case WLAN_CIPHER_SUITE_CCMP:
+ ret =
+ il4965_set_ccmp_dynamic_key_info(il, ctx, keyconf, sta_id);
+ break;
+ case WLAN_CIPHER_SUITE_TKIP:
+ ret =
+ il4965_set_tkip_dynamic_key_info(il, ctx, keyconf, sta_id);
+ break;
+ case WLAN_CIPHER_SUITE_WEP40:
+ case WLAN_CIPHER_SUITE_WEP104:
+ ret = il4965_set_wep_dynamic_key_info(il, ctx, keyconf, sta_id);
+ break;
+ default:
+ IL_ERR("Unknown alg: %s cipher = %x\n", __func__,
+ keyconf->cipher);
+ ret = -EINVAL;
+ }
+
+ D_WEP("Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
+ keyconf->cipher, keyconf->keylen, keyconf->keyidx, sta_id, ret);
+
+ return ret;
+}
+
+/**
+ * il4965_alloc_bcast_station - add broadcast station into driver's station table.
+ *
+ * This adds the broadcast station into the driver's station table
+ * and marks it driver active, so that it will be restored to the
+ * device at the next best time.
+ */
+int
+il4965_alloc_bcast_station(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ struct il_link_quality_cmd *link_cmd;
+ unsigned long flags;
+ u8 sta_id;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ sta_id = il_prep_station(il, ctx, il_bcast_addr, false, NULL);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Unable to prepare broadcast station\n");
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return -EINVAL;
+ }
+
+ il->stations[sta_id].used |= IL_STA_DRIVER_ACTIVE;
+ il->stations[sta_id].used |= IL_STA_BCAST;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ link_cmd = il4965_sta_alloc_lq(il, sta_id);
+ if (!link_cmd) {
+ IL_ERR
+ ("Unable to initialize rate scaling for bcast station.\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].lq = link_cmd;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return 0;
+}
+
+/**
+ * il4965_update_bcast_station - update broadcast station's LQ command
+ *
+ * Only used by iwl4965. Placed here to have all bcast station management
+ * code together.
+ */
+static int
+il4965_update_bcast_station(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ unsigned long flags;
+ struct il_link_quality_cmd *link_cmd;
+ u8 sta_id = ctx->bcast_sta_id;
+
+ link_cmd = il4965_sta_alloc_lq(il, sta_id);
+ if (!link_cmd) {
+ IL_ERR("Unable to initialize rate scaling for bcast sta.\n");
+ return -ENOMEM;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ if (il->stations[sta_id].lq)
+ kfree(il->stations[sta_id].lq);
+ else
+ D_INFO("Bcast sta rate scaling has not been initialized.\n");
+ il->stations[sta_id].lq = link_cmd;
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return 0;
+}
+
+int
+il4965_update_bcast_stations(struct il_priv *il)
+{
+ return il4965_update_bcast_station(il, &il->ctx);
+}
+
+/**
+ * il4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
+ */
+int
+il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid)
+{
+ unsigned long flags;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ /* Remove "disable" flag, to enable Tx for this TID */
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
+ il->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int
+il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta, int tid,
+ u16 ssn)
+{
+ unsigned long flags;
+ int sta_id;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ sta_id = il_sta_id(sta);
+ if (sta_id == IL_INVALID_STATION)
+ return -ENXIO;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].sta.station_flags_msk = 0;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
+ il->stations[sta_id].sta.add_immediate_ba_tid = (u8) tid;
+ il->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+int
+il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta, int tid)
+{
+ unsigned long flags;
+ int sta_id;
+ struct il_addsta_cmd sta_cmd;
+
+ lockdep_assert_held(&il->mutex);
+
+ sta_id = il_sta_id(sta);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Invalid station for AGG tid %d\n", tid);
+ return -ENXIO;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].sta.station_flags_msk = 0;
+ il->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
+ il->stations[sta_id].sta.remove_immediate_ba_tid = (u8) tid;
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+}
+
+void
+il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ il->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
+ il->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
+ il->stations[sta_id].sta.sta.modify_mask =
+ STA_MODIFY_SLEEP_TX_COUNT_MSK;
+ il->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
+ il->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
+ il_send_add_sta(il, &il->stations[sta_id].sta, CMD_ASYNC);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+}
+
+void
+il4965_update_chain_flags(struct il_priv *il)
+{
+ if (il->cfg->ops->hcmd->set_rxon_chain) {
+ il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx);
+ if (il->ctx.active.rx_chain != il->ctx.staging.rx_chain)
+ il_commit_rxon(il, &il->ctx);
+ }
+}
+
+static void
+il4965_clear_free_frames(struct il_priv *il)
+{
+ struct list_head *element;
+
+ D_INFO("%d frames on pre-allocated heap on clear.\n", il->frames_count);
+
+ while (!list_empty(&il->free_frames)) {
+ element = il->free_frames.next;
+ list_del(element);
+ kfree(list_entry(element, struct il_frame, list));
+ il->frames_count--;
+ }
+
+ if (il->frames_count) {
+ IL_WARN("%d frames still in use. Did we lose one?\n",
+ il->frames_count);
+ il->frames_count = 0;
+ }
+}
+
+static struct il_frame *
+il4965_get_free_frame(struct il_priv *il)
+{
+ struct il_frame *frame;
+ struct list_head *element;
+ if (list_empty(&il->free_frames)) {
+ frame = kzalloc(sizeof(*frame), GFP_KERNEL);
+ if (!frame) {
+ IL_ERR("Could not allocate frame!\n");
+ return NULL;
+ }
+
+ il->frames_count++;
+ return frame;
+ }
+
+ element = il->free_frames.next;
+ list_del(element);
+ return list_entry(element, struct il_frame, list);
+}
+
+static void
+il4965_free_frame(struct il_priv *il, struct il_frame *frame)
+{
+ memset(frame, 0, sizeof(*frame));
+ list_add(&frame->list, &il->free_frames);
+}
+
+static u32
+il4965_fill_beacon_frame(struct il_priv *il, struct ieee80211_hdr *hdr,
+ int left)
+{
+ lockdep_assert_held(&il->mutex);
+
+ if (!il->beacon_skb)
+ return 0;
+
+ if (il->beacon_skb->len > left)
+ return 0;
+
+ memcpy(hdr, il->beacon_skb->data, il->beacon_skb->len);
+
+ return il->beacon_skb->len;
+}
+
+/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
+static void
+il4965_set_beacon_tim(struct il_priv *il,
+ struct il_tx_beacon_cmd *tx_beacon_cmd, u8 * beacon,
+ u32 frame_size)
+{
+ u16 tim_idx;
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
+
+ /*
+ * The idx is relative to frame start but we start looking at the
+ * variable-length part of the beacon.
+ */
+ tim_idx = mgmt->u.beacon.variable - beacon;
+
+ /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
+ while ((tim_idx < (frame_size - 2)) &&
+ (beacon[tim_idx] != WLAN_EID_TIM))
+ tim_idx += beacon[tim_idx + 1] + 2;
+
+ /* If TIM field was found, set variables */
+ if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
+ tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
+ tx_beacon_cmd->tim_size = beacon[tim_idx + 1];
+ } else
+ IL_WARN("Unable to find TIM Element in beacon\n");
+}
+
+static unsigned int
+il4965_hw_get_beacon_cmd(struct il_priv *il, struct il_frame *frame)
+{
+ struct il_tx_beacon_cmd *tx_beacon_cmd;
+ u32 frame_size;
+ u32 rate_flags;
+ u32 rate;
+ /*
+ * We have to set up the TX command, the TX Beacon command, and the
+ * beacon contents.
+ */
+
+ lockdep_assert_held(&il->mutex);
+
+ if (!il->beacon_ctx) {
+ IL_ERR("trying to build beacon w/o beacon context!\n");
+ return 0;
+ }
+
+ /* Initialize memory */
+ tx_beacon_cmd = &frame->u.beacon;
+ memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
+
+ /* Set up TX beacon contents */
+ frame_size =
+ il4965_fill_beacon_frame(il, tx_beacon_cmd->frame,
+ sizeof(frame->u) - sizeof(*tx_beacon_cmd));
+ if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE))
+ return 0;
+ if (!frame_size)
+ return 0;
+
+ /* Set up TX command fields */
+ tx_beacon_cmd->tx.len = cpu_to_le16((u16) frame_size);
+ tx_beacon_cmd->tx.sta_id = il->beacon_ctx->bcast_sta_id;
+ tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
+ tx_beacon_cmd->tx.tx_flags =
+ TX_CMD_FLG_SEQ_CTL_MSK | TX_CMD_FLG_TSF_MSK |
+ TX_CMD_FLG_STA_RATE_MSK;
+
+ /* Set up TX beacon command fields */
+ il4965_set_beacon_tim(il, tx_beacon_cmd, (u8 *) tx_beacon_cmd->frame,
+ frame_size);
+
+ /* Set up packet rate and flags */
+ rate = il_get_lowest_plcp(il, il->beacon_ctx);
+ il->mgmt_tx_ant =
+ il4965_toggle_tx_ant(il, il->mgmt_tx_ant,
+ il->hw_params.valid_tx_ant);
+ rate_flags = il4965_ant_idx_to_flags(il->mgmt_tx_ant);
+ if ((rate >= IL_FIRST_CCK_RATE) && (rate <= IL_LAST_CCK_RATE))
+ rate_flags |= RATE_MCS_CCK_MSK;
+ tx_beacon_cmd->tx.rate_n_flags =
+ il4965_hw_set_rate_n_flags(rate, rate_flags);
+
+ return sizeof(*tx_beacon_cmd) + frame_size;
+}
+
+int
+il4965_send_beacon_cmd(struct il_priv *il)
+{
+ struct il_frame *frame;
+ unsigned int frame_size;
+ int rc;
+
+ frame = il4965_get_free_frame(il);
+ if (!frame) {
+ IL_ERR("Could not obtain free frame buffer for beacon "
+ "command.\n");
+ return -ENOMEM;
+ }
+
+ frame_size = il4965_hw_get_beacon_cmd(il, frame);
+ if (!frame_size) {
+ IL_ERR("Error configuring the beacon command\n");
+ il4965_free_frame(il, frame);
+ return -EINVAL;
+ }
+
+ rc = il_send_cmd_pdu(il, C_TX_BEACON, frame_size, &frame->u.cmd[0]);
+
+ il4965_free_frame(il, frame);
+
+ return rc;
+}
+
+static inline dma_addr_t
+il4965_tfd_tb_get_addr(struct il_tfd *tfd, u8 idx)
+{
+ struct il_tfd_tb *tb = &tfd->tbs[idx];
+
+ dma_addr_t addr = get_unaligned_le32(&tb->lo);
+ if (sizeof(dma_addr_t) > sizeof(u32))
+ addr |=
+ ((dma_addr_t) (le16_to_cpu(tb->hi_n_len) & 0xF) << 16) <<
+ 16;
+
+ return addr;
+}
+
+static inline u16
+il4965_tfd_tb_get_len(struct il_tfd *tfd, u8 idx)
+{
+ struct il_tfd_tb *tb = &tfd->tbs[idx];
+
+ return le16_to_cpu(tb->hi_n_len) >> 4;
+}
+
+static inline void
+il4965_tfd_set_tb(struct il_tfd *tfd, u8 idx, dma_addr_t addr, u16 len)
+{
+ struct il_tfd_tb *tb = &tfd->tbs[idx];
+ u16 hi_n_len = len << 4;
+
+ put_unaligned_le32(addr, &tb->lo);
+ if (sizeof(dma_addr_t) > sizeof(u32))
+ hi_n_len |= ((addr >> 16) >> 16) & 0xF;
+
+ tb->hi_n_len = cpu_to_le16(hi_n_len);
+
+ tfd->num_tbs = idx + 1;
+}
+
+static inline u8
+il4965_tfd_get_num_tbs(struct il_tfd *tfd)
+{
+ return tfd->num_tbs & 0x1f;
+}
+
+/**
+ * il4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
+ * @il - driver ilate data
+ * @txq - tx queue
+ *
+ * Does NOT advance any TFD circular buffer read/write idxes
+ * Does NOT free the TFD itself (which is within circular buffer)
+ */
+void
+il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq)
+{
+ struct il_tfd *tfd_tmp = (struct il_tfd *)txq->tfds;
+ struct il_tfd *tfd;
+ struct pci_dev *dev = il->pci_dev;
+ int idx = txq->q.read_ptr;
+ int i;
+ int num_tbs;
+
+ tfd = &tfd_tmp[idx];
+
+ /* Sanity check on number of chunks */
+ num_tbs = il4965_tfd_get_num_tbs(tfd);
+
+ if (num_tbs >= IL_NUM_OF_TBS) {
+ IL_ERR("Too many chunks: %i\n", num_tbs);
+ /* @todo issue fatal error, it is quite serious situation */
+ return;
+ }
+
+ /* Unmap tx_cmd */
+ if (num_tbs)
+ pci_unmap_single(dev, dma_unmap_addr(&txq->meta[idx], mapping),
+ dma_unmap_len(&txq->meta[idx], len),
+ PCI_DMA_BIDIRECTIONAL);
+
+ /* Unmap chunks, if any. */
+ for (i = 1; i < num_tbs; i++)
+ pci_unmap_single(dev, il4965_tfd_tb_get_addr(tfd, i),
+ il4965_tfd_tb_get_len(tfd, i),
+ PCI_DMA_TODEVICE);
+
+ /* free SKB */
+ if (txq->txb) {
+ struct sk_buff *skb;
+
+ skb = txq->txb[txq->q.read_ptr].skb;
+
+ /* can be called from irqs-disabled context */
+ if (skb) {
+ dev_kfree_skb_any(skb);
+ txq->txb[txq->q.read_ptr].skb = NULL;
+ }
+ }
+}
+
+int
+il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
+ dma_addr_t addr, u16 len, u8 reset, u8 pad)
+{
+ struct il_queue *q;
+ struct il_tfd *tfd, *tfd_tmp;
+ u32 num_tbs;
+
+ q = &txq->q;
+ tfd_tmp = (struct il_tfd *)txq->tfds;
+ tfd = &tfd_tmp[q->write_ptr];
+
+ if (reset)
+ memset(tfd, 0, sizeof(*tfd));
+
+ num_tbs = il4965_tfd_get_num_tbs(tfd);
+
+ /* Each TFD can point to a maximum 20 Tx buffers */
+ if (num_tbs >= IL_NUM_OF_TBS) {
+ IL_ERR("Error can not send more than %d chunks\n",
+ IL_NUM_OF_TBS);
+ return -EINVAL;
+ }
+
+ BUG_ON(addr & ~DMA_BIT_MASK(36));
+ if (unlikely(addr & ~IL_TX_DMA_MASK))
+ IL_ERR("Unaligned address = %llx\n", (unsigned long long)addr);
+
+ il4965_tfd_set_tb(tfd, num_tbs, addr, len);
+
+ return 0;
+}
+
+/*
+ * Tell nic where to find circular buffer of Tx Frame Descriptors for
+ * given Tx queue, and enable the DMA channel used for that queue.
+ *
+ * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
+ * channels supported in hardware.
+ */
+int
+il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq)
+{
+ int txq_id = txq->q.id;
+
+ /* Circular buffer (TFD queue in DRAM) physical base address */
+ il_wr(il, FH49_MEM_CBBC_QUEUE(txq_id), txq->q.dma_addr >> 8);
+
+ return 0;
+}
+
+/******************************************************************************
+ *
+ * Generic RX handler implementations
+ *
+ ******************************************************************************/
+static void
+il4965_hdl_alive(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_alive_resp *palive;
+ struct delayed_work *pwork;
+
+ palive = &pkt->u.alive_frame;
+
+ D_INFO("Alive ucode status 0x%08X revision " "0x%01X 0x%01X\n",
+ palive->is_valid, palive->ver_type, palive->ver_subtype);
+
+ if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
+ D_INFO("Initialization Alive received.\n");
+ memcpy(&il->card_alive_init, &pkt->u.alive_frame,
+ sizeof(struct il_init_alive_resp));
+ pwork = &il->init_alive_start;
+ } else {
+ D_INFO("Runtime Alive received.\n");
+ memcpy(&il->card_alive, &pkt->u.alive_frame,
+ sizeof(struct il_alive_resp));
+ pwork = &il->alive_start;
+ }
+
+ /* We delay the ALIVE response by 5ms to
+ * give the HW RF Kill time to activate... */
+ if (palive->is_valid == UCODE_VALID_OK)
+ queue_delayed_work(il->workqueue, pwork, msecs_to_jiffies(5));
+ else
+ IL_WARN("uCode did not respond OK.\n");
+}
+
+/**
+ * il4965_bg_stats_periodic - Timer callback to queue stats
+ *
+ * This callback is provided in order to send a stats request.
+ *
+ * This timer function is continually reset to execute within
+ * REG_RECALIB_PERIOD seconds since the last N_STATS
+ * was received. We need to ensure we receive the stats in order
+ * to update the temperature used for calibrating the TXPOWER.
+ */
+static void
+il4965_bg_stats_periodic(unsigned long data)
+{
+ struct il_priv *il = (struct il_priv *)data;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ /* dont send host command if rf-kill is on */
+ if (!il_is_ready_rf(il))
+ return;
+
+ il_send_stats_request(il, CMD_ASYNC, false);
+}
+
+static void
+il4965_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il4965_beacon_notif *beacon =
+ (struct il4965_beacon_notif *)pkt->u.raw;
+#ifdef CONFIG_IWLEGACY_DEBUG
+ u8 rate = il4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
+
+ D_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate);
+#endif
+
+ il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+}
+
+static void
+il4965_perform_ct_kill_task(struct il_priv *il)
+{
+ unsigned long flags;
+
+ D_POWER("Stop all queues\n");
+
+ if (il->mac80211_registered)
+ ieee80211_stop_queues(il->hw);
+
+ _il_wr(il, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ _il_rd(il, CSR_UCODE_DRV_GP1);
+
+ spin_lock_irqsave(&il->reg_lock, flags);
+ if (!_il_grab_nic_access(il))
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, flags);
+}
+
+/* Handle notification from uCode that card's power state is changing
+ * due to software, hardware, or critical temperature RFKILL */
+static void
+il4965_hdl_card_state(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
+ unsigned long status = il->status;
+
+ D_RF_KILL("Card state received: HW:%s SW:%s CT:%s\n",
+ (flags & HW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & SW_CARD_DISABLED) ? "Kill" : "On",
+ (flags & CT_CARD_DISABLED) ? "Reached" : "Not reached");
+
+ if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED | CT_CARD_DISABLED)) {
+
+ _il_wr(il, CSR_UCODE_DRV_GP1_SET,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ il_wr(il, HBUS_TARG_MBX_C, HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+
+ if (!(flags & RXON_CARD_DISABLED)) {
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+ il_wr(il, HBUS_TARG_MBX_C,
+ HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
+ }
+ }
+
+ if (flags & CT_CARD_DISABLED)
+ il4965_perform_ct_kill_task(il);
+
+ if (flags & HW_CARD_DISABLED)
+ set_bit(S_RF_KILL_HW, &il->status);
+ else
+ clear_bit(S_RF_KILL_HW, &il->status);
+
+ if (!(flags & RXON_CARD_DISABLED))
+ il_scan_cancel(il);
+
+ if ((test_bit(S_RF_KILL_HW, &status) !=
+ test_bit(S_RF_KILL_HW, &il->status)))
+ wiphy_rfkill_set_hw_state(il->hw->wiphy,
+ test_bit(S_RF_KILL_HW, &il->status));
+ else
+ wake_up(&il->wait_command_queue);
+}
+
+/**
+ * il4965_setup_handlers - Initialize Rx handler callbacks
+ *
+ * Setup the RX handlers for each of the reply types sent from the uCode
+ * to the host.
+ *
+ * This function chains into the hardware specific files for them to setup
+ * any hardware specific handlers as well.
+ */
+static void
+il4965_setup_handlers(struct il_priv *il)
+{
+ il->handlers[N_ALIVE] = il4965_hdl_alive;
+ il->handlers[N_ERROR] = il_hdl_error;
+ il->handlers[N_CHANNEL_SWITCH] = il_hdl_csa;
+ il->handlers[N_SPECTRUM_MEASUREMENT] = il_hdl_spectrum_measurement;
+ il->handlers[N_PM_SLEEP] = il_hdl_pm_sleep;
+ il->handlers[N_PM_DEBUG_STATS] = il_hdl_pm_debug_stats;
+ il->handlers[N_BEACON] = il4965_hdl_beacon;
+
+ /*
+ * The same handler is used for both the REPLY to a discrete
+ * stats request from the host as well as for the periodic
+ * stats notifications (after received beacons) from the uCode.
+ */
+ il->handlers[C_STATS] = il4965_hdl_c_stats;
+ il->handlers[N_STATS] = il4965_hdl_stats;
+
+ il_setup_rx_scan_handlers(il);
+
+ /* status change handler */
+ il->handlers[N_CARD_STATE] = il4965_hdl_card_state;
+
+ il->handlers[N_MISSED_BEACONS] = il4965_hdl_missed_beacon;
+ /* Rx handlers */
+ il->handlers[N_RX_PHY] = il4965_hdl_rx_phy;
+ il->handlers[N_RX_MPDU] = il4965_hdl_rx;
+ /* block ack */
+ il->handlers[N_COMPRESSED_BA] = il4965_hdl_compressed_ba;
+ /* Set up hardware specific Rx handlers */
+ il->cfg->ops->lib->handler_setup(il);
+}
+
+/**
+ * il4965_rx_handle - Main entry function for receiving responses from uCode
+ *
+ * Uses the il->handlers callback function array to invoke
+ * the appropriate handlers, including command responses,
+ * frame-received notifications, and other notifications.
+ */
+void
+il4965_rx_handle(struct il_priv *il)
+{
+ struct il_rx_buf *rxb;
+ struct il_rx_pkt *pkt;
+ struct il_rx_queue *rxq = &il->rxq;
+ u32 r, i;
+ int reclaim;
+ unsigned long flags;
+ u8 fill_rx = 0;
+ u32 count = 8;
+ int total_empty;
+
+ /* uCode's read idx (stored in shared DRAM) indicates the last Rx
+ * buffer that the driver may process (last buffer filled by ucode). */
+ r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
+ i = rxq->read;
+
+ /* Rx interrupt, but nothing sent from uCode */
+ if (i == r)
+ D_RX("r = %d, i = %d\n", r, i);
+
+ /* calculate total frames need to be restock after handling RX */
+ total_empty = r - rxq->write_actual;
+ if (total_empty < 0)
+ total_empty += RX_QUEUE_SIZE;
+
+ if (total_empty > (RX_QUEUE_SIZE / 2))
+ fill_rx = 1;
+
+ while (i != r) {
+ int len;
+
+ rxb = rxq->queue[i];
+
+ /* If an RXB doesn't have a Rx queue slot associated with it,
+ * then a bug has been introduced in the queue refilling
+ * routines -- catch it here */
+ BUG_ON(rxb == NULL);
+
+ rxq->queue[i] = NULL;
+
+ pci_unmap_page(il->pci_dev, rxb->page_dma,
+ PAGE_SIZE << il->hw_params.rx_page_order,
+ PCI_DMA_FROMDEVICE);
+ pkt = rxb_addr(rxb);
+
+ len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK;
+ len += sizeof(u32); /* account for status word */
+
+ /* Reclaim a command buffer only if this packet is a response
+ * to a (driver-originated) command.
+ * If the packet (e.g. Rx frame) originated from uCode,
+ * there is no command buffer to reclaim.
+ * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
+ * but apparently a few don't get set; catch them here. */
+ reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
+ (pkt->hdr.cmd != N_RX_PHY) && (pkt->hdr.cmd != N_RX) &&
+ (pkt->hdr.cmd != N_RX_MPDU) &&
+ (pkt->hdr.cmd != N_COMPRESSED_BA) &&
+ (pkt->hdr.cmd != N_STATS) && (pkt->hdr.cmd != C_TX);
+
+ /* Based on type of command response or notification,
+ * handle those that need handling via function in
+ * handlers table. See il4965_setup_handlers() */
+ if (il->handlers[pkt->hdr.cmd]) {
+ D_RX("r = %d, i = %d, %s, 0x%02x\n", r, i,
+ il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ il->isr_stats.handlers[pkt->hdr.cmd]++;
+ il->handlers[pkt->hdr.cmd] (il, rxb);
+ } else {
+ /* No handling needed */
+ D_RX("r %d i %d No handler needed for %s, 0x%02x\n", r,
+ i, il_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
+ }
+
+ /*
+ * XXX: After here, we should always check rxb->page
+ * against NULL before touching it or its virtual
+ * memory (pkt). Because some handler might have
+ * already taken or freed the pages.
+ */
+
+ if (reclaim) {
+ /* Invoke any callbacks, transfer the buffer to caller,
+ * and fire off the (possibly) blocking il_send_cmd()
+ * as we reclaim the driver command queue */
+ if (rxb->page)
+ il_tx_cmd_complete(il, rxb);
+ else
+ IL_WARN("Claim null rxb?\n");
+ }
+
+ /* Reuse the page if possible. For notification packets and
+ * SKBs that fail to Rx correctly, add them back into the
+ * rx_free list for reuse later. */
+ spin_lock_irqsave(&rxq->lock, flags);
+ if (rxb->page != NULL) {
+ rxb->page_dma =
+ pci_map_page(il->pci_dev, rxb->page, 0,
+ PAGE_SIZE << il->hw_params.
+ rx_page_order, PCI_DMA_FROMDEVICE);
+ list_add_tail(&rxb->list, &rxq->rx_free);
+ rxq->free_count++;
+ } else
+ list_add_tail(&rxb->list, &rxq->rx_used);
+
+ spin_unlock_irqrestore(&rxq->lock, flags);
+
+ i = (i + 1) & RX_QUEUE_MASK;
+ /* If there are a lot of unused frames,
+ * restock the Rx queue so ucode wont assert. */
+ if (fill_rx) {
+ count++;
+ if (count >= 8) {
+ rxq->read = i;
+ il4965_rx_replenish_now(il);
+ count = 0;
+ }
+ }
+ }
+
+ /* Backtrack one entry */
+ rxq->read = i;
+ if (fill_rx)
+ il4965_rx_replenish_now(il);
+ else
+ il4965_rx_queue_restock(il);
+}
+
+/* call this function to flush any scheduled tasklet */
+static inline void
+il4965_synchronize_irq(struct il_priv *il)
+{
+ /* wait to make sure we flush pending tasklet */
+ synchronize_irq(il->pci_dev->irq);
+ tasklet_kill(&il->irq_tasklet);
+}
+
+static void
+il4965_irq_tasklet(struct il_priv *il)
+{
+ u32 inta, handled = 0;
+ u32 inta_fh;
+ unsigned long flags;
+ u32 i;
+#ifdef CONFIG_IWLEGACY_DEBUG
+ u32 inta_mask;
+#endif
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Ack/clear/reset pending uCode interrupts.
+ * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
+ * and will clear only when CSR_FH_INT_STATUS gets cleared. */
+ inta = _il_rd(il, CSR_INT);
+ _il_wr(il, CSR_INT, inta);
+
+ /* Ack/clear/reset pending flow-handler (DMA) interrupts.
+ * Any new interrupts that happen after this, either while we're
+ * in this tasklet, or later, will show up in next ISR/tasklet. */
+ inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
+ _il_wr(il, CSR_FH_INT_STATUS, inta_fh);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & IL_DL_ISR) {
+ /* just for debug */
+ inta_mask = _il_rd(il, CSR_INT_MASK);
+ D_ISR("inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta,
+ inta_mask, inta_fh);
+ }
+#endif
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
+ * atomic, make sure that inta covers all the interrupts that
+ * we've discovered, even if FH interrupt came in just after
+ * reading CSR_INT. */
+ if (inta_fh & CSR49_FH_INT_RX_MASK)
+ inta |= CSR_INT_BIT_FH_RX;
+ if (inta_fh & CSR49_FH_INT_TX_MASK)
+ inta |= CSR_INT_BIT_FH_TX;
+
+ /* Now service all interrupt bits discovered above. */
+ if (inta & CSR_INT_BIT_HW_ERR) {
+ IL_ERR("Hardware error detected. Restarting.\n");
+
+ /* Tell the device to stop sending interrupts */
+ il_disable_interrupts(il);
+
+ il->isr_stats.hw++;
+ il_irq_handle_error(il);
+
+ handled |= CSR_INT_BIT_HW_ERR;
+
+ return;
+ }
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & (IL_DL_ISR)) {
+ /* NIC fires this, but we don't use it, redundant with WAKEUP */
+ if (inta & CSR_INT_BIT_SCD) {
+ D_ISR("Scheduler finished to transmit "
+ "the frame/frames.\n");
+ il->isr_stats.sch++;
+ }
+
+ /* Alive notification via Rx interrupt will do the real work */
+ if (inta & CSR_INT_BIT_ALIVE) {
+ D_ISR("Alive interrupt\n");
+ il->isr_stats.alive++;
+ }
+ }
+#endif
+ /* Safely ignore these bits for debug checks below */
+ inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
+
+ /* HW RF KILL switch toggled */
+ if (inta & CSR_INT_BIT_RF_KILL) {
+ int hw_rf_kill = 0;
+ if (!
+ (_il_rd(il, CSR_GP_CNTRL) &
+ CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rf_kill = 1;
+
+ IL_WARN("RF_KILL bit toggled to %s.\n",
+ hw_rf_kill ? "disable radio" : "enable radio");
+
+ il->isr_stats.rfkill++;
+
+ /* driver only loads ucode once setting the interface up.
+ * the driver allows loading the ucode even if the radio
+ * is killed. Hence update the killswitch state here. The
+ * rfkill handler will care about restarting if needed.
+ */
+ if (!test_bit(S_ALIVE, &il->status)) {
+ if (hw_rf_kill)
+ set_bit(S_RF_KILL_HW, &il->status);
+ else
+ clear_bit(S_RF_KILL_HW, &il->status);
+ wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rf_kill);
+ }
+
+ handled |= CSR_INT_BIT_RF_KILL;
+ }
+
+ /* Chip got too hot and stopped itself */
+ if (inta & CSR_INT_BIT_CT_KILL) {
+ IL_ERR("Microcode CT kill error detected.\n");
+ il->isr_stats.ctkill++;
+ handled |= CSR_INT_BIT_CT_KILL;
+ }
+
+ /* Error detected by uCode */
+ if (inta & CSR_INT_BIT_SW_ERR) {
+ IL_ERR("Microcode SW error detected. " " Restarting 0x%X.\n",
+ inta);
+ il->isr_stats.sw++;
+ il_irq_handle_error(il);
+ handled |= CSR_INT_BIT_SW_ERR;
+ }
+
+ /*
+ * uCode wakes up after power-down sleep.
+ * Tell device about any new tx or host commands enqueued,
+ * and about any Rx buffers made available while asleep.
+ */
+ if (inta & CSR_INT_BIT_WAKEUP) {
+ D_ISR("Wakeup interrupt\n");
+ il_rx_queue_update_write_ptr(il, &il->rxq);
+ for (i = 0; i < il->hw_params.max_txq_num; i++)
+ il_txq_update_write_ptr(il, &il->txq[i]);
+ il->isr_stats.wakeup++;
+ handled |= CSR_INT_BIT_WAKEUP;
+ }
+
+ /* All uCode command responses, including Tx command responses,
+ * Rx "responses" (frame-received notification), and other
+ * notifications from uCode come through here*/
+ if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+ il4965_rx_handle(il);
+ il->isr_stats.rx++;
+ handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+ }
+
+ /* This "Tx" DMA channel is used only for loading uCode */
+ if (inta & CSR_INT_BIT_FH_TX) {
+ D_ISR("uCode load interrupt\n");
+ il->isr_stats.tx++;
+ handled |= CSR_INT_BIT_FH_TX;
+ /* Wake up uCode load routine, now that load is complete */
+ il->ucode_write_complete = 1;
+ wake_up(&il->wait_command_queue);
+ }
+
+ if (inta & ~handled) {
+ IL_ERR("Unhandled INTA bits 0x%08x\n", inta & ~handled);
+ il->isr_stats.unhandled++;
+ }
+
+ if (inta & ~(il->inta_mask)) {
+ IL_WARN("Disabled INTA bits 0x%08x were pending\n",
+ inta & ~il->inta_mask);
+ IL_WARN(" with FH49_INT = 0x%08x\n", inta_fh);
+ }
+
+ /* Re-enable all interrupts */
+ /* only Re-enable if disabled by irq */
+ if (test_bit(S_INT_ENABLED, &il->status))
+ il_enable_interrupts(il);
+ /* Re-enable RF_KILL if it occurred */
+ else if (handled & CSR_INT_BIT_RF_KILL)
+ il_enable_rfkill_int(il);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & (IL_DL_ISR)) {
+ inta = _il_rd(il, CSR_INT);
+ inta_mask = _il_rd(il, CSR_INT_MASK);
+ inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
+ D_ISR("End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
+ "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
+ }
+#endif
+}
+
+/*****************************************************************************
+ *
+ * sysfs attributes
+ *
+ *****************************************************************************/
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+
+/*
+ * The following adds a new attribute to the sysfs representation
+ * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
+ * used for controlling the debug level.
+ *
+ * See the level definitions in iwl for details.
+ *
+ * The debug_level being managed using sysfs below is a per device debug
+ * level that is used instead of the global debug level if it (the per
+ * device debug level) is set.
+ */
+static ssize_t
+il4965_show_debug_level(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ return sprintf(buf, "0x%08X\n", il_get_debug_level(il));
+}
+
+static ssize_t
+il4965_store_debug_level(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ unsigned long val;
+ int ret;
+
+ ret = strict_strtoul(buf, 0, &val);
+ if (ret)
+ IL_ERR("%s is not in hex or decimal form.\n", buf);
+ else {
+ il->debug_level = val;
+ if (il_alloc_traffic_mem(il))
+ IL_ERR("Not enough memory to generate traffic log\n");
+ }
+ return strnlen(buf, count);
+}
+
+static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, il4965_show_debug_level,
+ il4965_store_debug_level);
+
+#endif /* CONFIG_IWLEGACY_DEBUG */
+
+static ssize_t
+il4965_show_temperature(struct device *d, struct device_attribute *attr,
+ char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+
+ if (!il_is_alive(il))
+ return -EAGAIN;
+
+ return sprintf(buf, "%d\n", il->temperature);
+}
+
+static DEVICE_ATTR(temperature, S_IRUGO, il4965_show_temperature, NULL);
+
+static ssize_t
+il4965_show_tx_power(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+
+ if (!il_is_ready_rf(il))
+ return sprintf(buf, "off\n");
+ else
+ return sprintf(buf, "%d\n", il->tx_power_user_lmt);
+}
+
+static ssize_t
+il4965_store_tx_power(struct device *d, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct il_priv *il = dev_get_drvdata(d);
+ unsigned long val;
+ int ret;
+
+ ret = strict_strtoul(buf, 10, &val);
+ if (ret)
+ IL_INFO("%s is not in decimal form.\n", buf);
+ else {
+ ret = il_set_tx_power(il, val, false);
+ if (ret)
+ IL_ERR("failed setting tx power (0x%d).\n", ret);
+ else
+ ret = count;
+ }
+ return ret;
+}
+
+static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, il4965_show_tx_power,
+ il4965_store_tx_power);
+
+static struct attribute *il_sysfs_entries[] = {
+ &dev_attr_temperature.attr,
+ &dev_attr_tx_power.attr,
+#ifdef CONFIG_IWLEGACY_DEBUG
+ &dev_attr_debug_level.attr,
+#endif
+ NULL
+};
+
+static struct attribute_group il_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = il_sysfs_entries,
+};
+
+/******************************************************************************
+ *
+ * uCode download functions
+ *
+ ******************************************************************************/
+
+static void
+il4965_dealloc_ucode_pci(struct il_priv *il)
+{
+ il_free_fw_desc(il->pci_dev, &il->ucode_code);
+ il_free_fw_desc(il->pci_dev, &il->ucode_data);
+ il_free_fw_desc(il->pci_dev, &il->ucode_data_backup);
+ il_free_fw_desc(il->pci_dev, &il->ucode_init);
+ il_free_fw_desc(il->pci_dev, &il->ucode_init_data);
+ il_free_fw_desc(il->pci_dev, &il->ucode_boot);
+}
+
+static void
+il4965_nic_start(struct il_priv *il)
+{
+ /* Remove all resets to allow NIC to operate */
+ _il_wr(il, CSR_RESET, 0);
+}
+
+static void il4965_ucode_callback(const struct firmware *ucode_raw,
+ void *context);
+static int il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length);
+
+static int __must_check
+il4965_request_firmware(struct il_priv *il, bool first)
+{
+ const char *name_pre = il->cfg->fw_name_pre;
+ char tag[8];
+
+ if (first) {
+ il->fw_idx = il->cfg->ucode_api_max;
+ sprintf(tag, "%d", il->fw_idx);
+ } else {
+ il->fw_idx--;
+ sprintf(tag, "%d", il->fw_idx);
+ }
+
+ if (il->fw_idx < il->cfg->ucode_api_min) {
+ IL_ERR("no suitable firmware found!\n");
+ return -ENOENT;
+ }
+
+ sprintf(il->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
+
+ D_INFO("attempting to load firmware '%s'\n", il->firmware_name);
+
+ return request_firmware_nowait(THIS_MODULE, 1, il->firmware_name,
+ &il->pci_dev->dev, GFP_KERNEL, il,
+ il4965_ucode_callback);
+}
+
+struct il4965_firmware_pieces {
+ const void *inst, *data, *init, *init_data, *boot;
+ size_t inst_size, data_size, init_size, init_data_size, boot_size;
+};
+
+static int
+il4965_load_firmware(struct il_priv *il, const struct firmware *ucode_raw,
+ struct il4965_firmware_pieces *pieces)
+{
+ struct il_ucode_header *ucode = (void *)ucode_raw->data;
+ u32 api_ver, hdr_size;
+ const u8 *src;
+
+ il->ucode_ver = le32_to_cpu(ucode->ver);
+ api_ver = IL_UCODE_API(il->ucode_ver);
+
+ switch (api_ver) {
+ default:
+ case 0:
+ case 1:
+ case 2:
+ hdr_size = 24;
+ if (ucode_raw->size < hdr_size) {
+ IL_ERR("File size too small!\n");
+ return -EINVAL;
+ }
+ pieces->inst_size = le32_to_cpu(ucode->v1.inst_size);
+ pieces->data_size = le32_to_cpu(ucode->v1.data_size);
+ pieces->init_size = le32_to_cpu(ucode->v1.init_size);
+ pieces->init_data_size = le32_to_cpu(ucode->v1.init_data_size);
+ pieces->boot_size = le32_to_cpu(ucode->v1.boot_size);
+ src = ucode->v1.data;
+ break;
+ }
+
+ /* Verify size of file vs. image size info in file's header */
+ if (ucode_raw->size !=
+ hdr_size + pieces->inst_size + pieces->data_size +
+ pieces->init_size + pieces->init_data_size + pieces->boot_size) {
+
+ IL_ERR("uCode file size %d does not match expected size\n",
+ (int)ucode_raw->size);
+ return -EINVAL;
+ }
+
+ pieces->inst = src;
+ src += pieces->inst_size;
+ pieces->data = src;
+ src += pieces->data_size;
+ pieces->init = src;
+ src += pieces->init_size;
+ pieces->init_data = src;
+ src += pieces->init_data_size;
+ pieces->boot = src;
+ src += pieces->boot_size;
+
+ return 0;
+}
+
+/**
+ * il4965_ucode_callback - callback when firmware was loaded
+ *
+ * If loaded successfully, copies the firmware into buffers
+ * for the card to fetch (via DMA).
+ */
+static void
+il4965_ucode_callback(const struct firmware *ucode_raw, void *context)
+{
+ struct il_priv *il = context;
+ struct il_ucode_header *ucode;
+ int err;
+ struct il4965_firmware_pieces pieces;
+ const unsigned int api_max = il->cfg->ucode_api_max;
+ const unsigned int api_min = il->cfg->ucode_api_min;
+ u32 api_ver;
+
+ u32 max_probe_length = 200;
+ u32 standard_phy_calibration_size =
+ IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
+
+ memset(&pieces, 0, sizeof(pieces));
+
+ if (!ucode_raw) {
+ if (il->fw_idx <= il->cfg->ucode_api_max)
+ IL_ERR("request for firmware file '%s' failed.\n",
+ il->firmware_name);
+ goto try_again;
+ }
+
+ D_INFO("Loaded firmware file '%s' (%zd bytes).\n", il->firmware_name,
+ ucode_raw->size);
+
+ /* Make sure that we got at least the API version number */
+ if (ucode_raw->size < 4) {
+ IL_ERR("File size way too small!\n");
+ goto try_again;
+ }
+
+ /* Data from ucode file: header followed by uCode images */
+ ucode = (struct il_ucode_header *)ucode_raw->data;
+
+ err = il4965_load_firmware(il, ucode_raw, &pieces);
+
+ if (err)
+ goto try_again;
+
+ api_ver = IL_UCODE_API(il->ucode_ver);
+
+ /*
+ * api_ver should match the api version forming part of the
+ * firmware filename ... but we don't check for that and only rely
+ * on the API version read from firmware header from here on forward
+ */
+ if (api_ver < api_min || api_ver > api_max) {
+ IL_ERR("Driver unable to support your firmware API. "
+ "Driver supports v%u, firmware is v%u.\n", api_max,
+ api_ver);
+ goto try_again;
+ }
+
+ if (api_ver != api_max)
+ IL_ERR("Firmware has old API version. Expected v%u, "
+ "got v%u. New firmware can be obtained "
+ "from http://www.intellinuxwireless.org.\n", api_max,
+ api_ver);
+
+ IL_INFO("loaded firmware version %u.%u.%u.%u\n",
+ IL_UCODE_MAJOR(il->ucode_ver), IL_UCODE_MINOR(il->ucode_ver),
+ IL_UCODE_API(il->ucode_ver), IL_UCODE_SERIAL(il->ucode_ver));
+
+ snprintf(il->hw->wiphy->fw_version, sizeof(il->hw->wiphy->fw_version),
+ "%u.%u.%u.%u", IL_UCODE_MAJOR(il->ucode_ver),
+ IL_UCODE_MINOR(il->ucode_ver), IL_UCODE_API(il->ucode_ver),
+ IL_UCODE_SERIAL(il->ucode_ver));
+
+ /*
+ * For any of the failures below (before allocating pci memory)
+ * we will try to load a version with a smaller API -- maybe the
+ * user just got a corrupted version of the latest API.
+ */
+
+ D_INFO("f/w package hdr ucode version raw = 0x%x\n", il->ucode_ver);
+ D_INFO("f/w package hdr runtime inst size = %Zd\n", pieces.inst_size);
+ D_INFO("f/w package hdr runtime data size = %Zd\n", pieces.data_size);
+ D_INFO("f/w package hdr init inst size = %Zd\n", pieces.init_size);
+ D_INFO("f/w package hdr init data size = %Zd\n", pieces.init_data_size);
+ D_INFO("f/w package hdr boot inst size = %Zd\n", pieces.boot_size);
+
+ /* Verify that uCode images will fit in card's SRAM */
+ if (pieces.inst_size > il->hw_params.max_inst_size) {
+ IL_ERR("uCode instr len %Zd too large to fit in\n",
+ pieces.inst_size);
+ goto try_again;
+ }
+
+ if (pieces.data_size > il->hw_params.max_data_size) {
+ IL_ERR("uCode data len %Zd too large to fit in\n",
+ pieces.data_size);
+ goto try_again;
+ }
+
+ if (pieces.init_size > il->hw_params.max_inst_size) {
+ IL_ERR("uCode init instr len %Zd too large to fit in\n",
+ pieces.init_size);
+ goto try_again;
+ }
+
+ if (pieces.init_data_size > il->hw_params.max_data_size) {
+ IL_ERR("uCode init data len %Zd too large to fit in\n",
+ pieces.init_data_size);
+ goto try_again;
+ }
+
+ if (pieces.boot_size > il->hw_params.max_bsm_size) {
+ IL_ERR("uCode boot instr len %Zd too large to fit in\n",
+ pieces.boot_size);
+ goto try_again;
+ }
+
+ /* Allocate ucode buffers for card's bus-master loading ... */
+
+ /* Runtime instructions and 2 copies of data:
+ * 1) unmodified from disk
+ * 2) backup cache for save/restore during power-downs */
+ il->ucode_code.len = pieces.inst_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_code);
+
+ il->ucode_data.len = pieces.data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_data);
+
+ il->ucode_data_backup.len = pieces.data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_data_backup);
+
+ if (!il->ucode_code.v_addr || !il->ucode_data.v_addr ||
+ !il->ucode_data_backup.v_addr)
+ goto err_pci_alloc;
+
+ /* Initialization instructions and data */
+ if (pieces.init_size && pieces.init_data_size) {
+ il->ucode_init.len = pieces.init_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_init);
+
+ il->ucode_init_data.len = pieces.init_data_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_init_data);
+
+ if (!il->ucode_init.v_addr || !il->ucode_init_data.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Bootstrap (instructions only, no data) */
+ if (pieces.boot_size) {
+ il->ucode_boot.len = pieces.boot_size;
+ il_alloc_fw_desc(il->pci_dev, &il->ucode_boot);
+
+ if (!il->ucode_boot.v_addr)
+ goto err_pci_alloc;
+ }
+
+ /* Now that we can no longer fail, copy information */
+
+ il->sta_key_max_num = STA_KEY_MAX_NUM;
+
+ /* Copy images into buffers for card's bus-master reads ... */
+
+ /* Runtime instructions (first block of data in file) */
+ D_INFO("Copying (but not loading) uCode instr len %Zd\n",
+ pieces.inst_size);
+ memcpy(il->ucode_code.v_addr, pieces.inst, pieces.inst_size);
+
+ D_INFO("uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
+ il->ucode_code.v_addr, (u32) il->ucode_code.p_addr);
+
+ /*
+ * Runtime data
+ * NOTE: Copy into backup buffer will be done in il_up()
+ */
+ D_INFO("Copying (but not loading) uCode data len %Zd\n",
+ pieces.data_size);
+ memcpy(il->ucode_data.v_addr, pieces.data, pieces.data_size);
+ memcpy(il->ucode_data_backup.v_addr, pieces.data, pieces.data_size);
+
+ /* Initialization instructions */
+ if (pieces.init_size) {
+ D_INFO("Copying (but not loading) init instr len %Zd\n",
+ pieces.init_size);
+ memcpy(il->ucode_init.v_addr, pieces.init, pieces.init_size);
+ }
+
+ /* Initialization data */
+ if (pieces.init_data_size) {
+ D_INFO("Copying (but not loading) init data len %Zd\n",
+ pieces.init_data_size);
+ memcpy(il->ucode_init_data.v_addr, pieces.init_data,
+ pieces.init_data_size);
+ }
+
+ /* Bootstrap instructions */
+ D_INFO("Copying (but not loading) boot instr len %Zd\n",
+ pieces.boot_size);
+ memcpy(il->ucode_boot.v_addr, pieces.boot, pieces.boot_size);
+
+ /*
+ * figure out the offset of chain noise reset and gain commands
+ * base on the size of standard phy calibration commands table size
+ */
+ il->_4965.phy_calib_chain_noise_reset_cmd =
+ standard_phy_calibration_size;
+ il->_4965.phy_calib_chain_noise_gain_cmd =
+ standard_phy_calibration_size + 1;
+
+ /**************************************************
+ * This is still part of probe() in a sense...
+ *
+ * 9. Setup and register with mac80211 and debugfs
+ **************************************************/
+ err = il4965_mac_setup_register(il, max_probe_length);
+ if (err)
+ goto out_unbind;
+
+ err = il_dbgfs_register(il, DRV_NAME);
+ if (err)
+ IL_ERR("failed to create debugfs files. Ignoring error: %d\n",
+ err);
+
+ err = sysfs_create_group(&il->pci_dev->dev.kobj, &il_attribute_group);
+ if (err) {
+ IL_ERR("failed to create sysfs device attributes\n");
+ goto out_unbind;
+ }
+
+ /* We have our copies now, allow OS release its copies */
+ release_firmware(ucode_raw);
+ complete(&il->_4965.firmware_loading_complete);
+ return;
+
+try_again:
+ /* try next, if any */
+ if (il4965_request_firmware(il, false))
+ goto out_unbind;
+ release_firmware(ucode_raw);
+ return;
+
+err_pci_alloc:
+ IL_ERR("failed to allocate pci memory\n");
+ il4965_dealloc_ucode_pci(il);
+out_unbind:
+ complete(&il->_4965.firmware_loading_complete);
+ device_release_driver(&il->pci_dev->dev);
+ release_firmware(ucode_raw);
+}
+
+static const char *const desc_lookup_text[] = {
+ "OK",
+ "FAIL",
+ "BAD_PARAM",
+ "BAD_CHECKSUM",
+ "NMI_INTERRUPT_WDG",
+ "SYSASSERT",
+ "FATAL_ERROR",
+ "BAD_COMMAND",
+ "HW_ERROR_TUNE_LOCK",
+ "HW_ERROR_TEMPERATURE",
+ "ILLEGAL_CHAN_FREQ",
+ "VCC_NOT_STBL",
+ "FH49_ERROR",
+ "NMI_INTERRUPT_HOST",
+ "NMI_INTERRUPT_ACTION_PT",
+ "NMI_INTERRUPT_UNKNOWN",
+ "UCODE_VERSION_MISMATCH",
+ "HW_ERROR_ABS_LOCK",
+ "HW_ERROR_CAL_LOCK_FAIL",
+ "NMI_INTERRUPT_INST_ACTION_PT",
+ "NMI_INTERRUPT_DATA_ACTION_PT",
+ "NMI_TRM_HW_ER",
+ "NMI_INTERRUPT_TRM",
+ "NMI_INTERRUPT_BREAK_POINT",
+ "DEBUG_0",
+ "DEBUG_1",
+ "DEBUG_2",
+ "DEBUG_3",
+};
+
+static struct {
+ char *name;
+ u8 num;
+} advanced_lookup[] = {
+ {
+ "NMI_INTERRUPT_WDG", 0x34}, {
+ "SYSASSERT", 0x35}, {
+ "UCODE_VERSION_MISMATCH", 0x37}, {
+ "BAD_COMMAND", 0x38}, {
+ "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C}, {
+ "FATAL_ERROR", 0x3D}, {
+ "NMI_TRM_HW_ERR", 0x46}, {
+ "NMI_INTERRUPT_TRM", 0x4C}, {
+ "NMI_INTERRUPT_BREAK_POINT", 0x54}, {
+ "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C}, {
+ "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64}, {
+ "NMI_INTERRUPT_HOST", 0x66}, {
+ "NMI_INTERRUPT_ACTION_PT", 0x7C}, {
+ "NMI_INTERRUPT_UNKNOWN", 0x84}, {
+ "NMI_INTERRUPT_INST_ACTION_PT", 0x86}, {
+"ADVANCED_SYSASSERT", 0},};
+
+static const char *
+il4965_desc_lookup(u32 num)
+{
+ int i;
+ int max = ARRAY_SIZE(desc_lookup_text);
+
+ if (num < max)
+ return desc_lookup_text[num];
+
+ max = ARRAY_SIZE(advanced_lookup) - 1;
+ for (i = 0; i < max; i++) {
+ if (advanced_lookup[i].num == num)
+ break;
+ }
+ return advanced_lookup[i].name;
+}
+
+#define ERROR_START_OFFSET (1 * sizeof(u32))
+#define ERROR_ELEM_SIZE (7 * sizeof(u32))
+
+void
+il4965_dump_nic_error_log(struct il_priv *il)
+{
+ u32 data2, line;
+ u32 desc, time, count, base, data1;
+ u32 blink1, blink2, ilink1, ilink2;
+ u32 pc, hcmd;
+
+ if (il->ucode_type == UCODE_INIT)
+ base = le32_to_cpu(il->card_alive_init.error_event_table_ptr);
+ else
+ base = le32_to_cpu(il->card_alive.error_event_table_ptr);
+
+ if (!il->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
+ IL_ERR("Not valid error log pointer 0x%08X for %s uCode\n",
+ base, (il->ucode_type == UCODE_INIT) ? "Init" : "RT");
+ return;
+ }
+
+ count = il_read_targ_mem(il, base);
+
+ if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
+ IL_ERR("Start IWL Error Log Dump:\n");
+ IL_ERR("Status: 0x%08lX, count: %d\n", il->status, count);
+ }
+
+ desc = il_read_targ_mem(il, base + 1 * sizeof(u32));
+ il->isr_stats.err_code = desc;
+ pc = il_read_targ_mem(il, base + 2 * sizeof(u32));
+ blink1 = il_read_targ_mem(il, base + 3 * sizeof(u32));
+ blink2 = il_read_targ_mem(il, base + 4 * sizeof(u32));
+ ilink1 = il_read_targ_mem(il, base + 5 * sizeof(u32));
+ ilink2 = il_read_targ_mem(il, base + 6 * sizeof(u32));
+ data1 = il_read_targ_mem(il, base + 7 * sizeof(u32));
+ data2 = il_read_targ_mem(il, base + 8 * sizeof(u32));
+ line = il_read_targ_mem(il, base + 9 * sizeof(u32));
+ time = il_read_targ_mem(il, base + 11 * sizeof(u32));
+ hcmd = il_read_targ_mem(il, base + 22 * sizeof(u32));
+
+ IL_ERR("Desc Time "
+ "data1 data2 line\n");
+ IL_ERR("%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
+ il4965_desc_lookup(desc), desc, time, data1, data2, line);
+ IL_ERR("pc blink1 blink2 ilink1 ilink2 hcmd\n");
+ IL_ERR("0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n", pc, blink1,
+ blink2, ilink1, ilink2, hcmd);
+}
+
+static void
+il4965_rf_kill_ct_config(struct il_priv *il)
+{
+ struct il_ct_kill_config cmd;
+ unsigned long flags;
+ int ret = 0;
+
+ spin_lock_irqsave(&il->lock, flags);
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR,
+ CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ cmd.critical_temperature_R =
+ cpu_to_le32(il->hw_params.ct_kill_threshold);
+
+ ret = il_send_cmd_pdu(il, C_CT_KILL_CONFIG, sizeof(cmd), &cmd);
+ if (ret)
+ IL_ERR("C_CT_KILL_CONFIG failed\n");
+ else
+ D_INFO("C_CT_KILL_CONFIG " "succeeded, "
+ "critical temperature is %d\n",
+ il->hw_params.ct_kill_threshold);
+}
+
+static const s8 default_queue_to_tx_fifo[] = {
+ IL_TX_FIFO_VO,
+ IL_TX_FIFO_VI,
+ IL_TX_FIFO_BE,
+ IL_TX_FIFO_BK,
+ IL49_CMD_FIFO_NUM,
+ IL_TX_FIFO_UNUSED,
+ IL_TX_FIFO_UNUSED,
+};
+
+#define IL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
+
+static int
+il4965_alive_notify(struct il_priv *il)
+{
+ u32 a;
+ unsigned long flags;
+ int i, chan;
+ u32 reg_val;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Clear 4965's internal Tx Scheduler data base */
+ il->scd_base_addr = il_rd_prph(il, IL49_SCD_SRAM_BASE_ADDR);
+ a = il->scd_base_addr + IL49_SCD_CONTEXT_DATA_OFFSET;
+ for (; a < il->scd_base_addr + IL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4)
+ il_write_targ_mem(il, a, 0);
+ for (; a < il->scd_base_addr + IL49_SCD_TRANSLATE_TBL_OFFSET; a += 4)
+ il_write_targ_mem(il, a, 0);
+ for (;
+ a <
+ il->scd_base_addr +
+ IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(il->hw_params.max_txq_num);
+ a += 4)
+ il_write_targ_mem(il, a, 0);
+
+ /* Tel 4965 where to find Tx byte count tables */
+ il_wr_prph(il, IL49_SCD_DRAM_BASE_ADDR, il->scd_bc_tbls.dma >> 10);
+
+ /* Enable DMA channel */
+ for (chan = 0; chan < FH49_TCSR_CHNL_NUM; chan++)
+ il_wr(il, FH49_TCSR_CHNL_TX_CONFIG_REG(chan),
+ FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
+ FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
+
+ /* Update FH chicken bits */
+ reg_val = il_rd(il, FH49_TX_CHICKEN_BITS_REG);
+ il_wr(il, FH49_TX_CHICKEN_BITS_REG,
+ reg_val | FH49_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
+
+ /* Disable chain mode for all queues */
+ il_wr_prph(il, IL49_SCD_QUEUECHAIN_SEL, 0);
+
+ /* Initialize each Tx queue (including the command queue) */
+ for (i = 0; i < il->hw_params.max_txq_num; i++) {
+
+ /* TFD circular buffer read/write idxes */
+ il_wr_prph(il, IL49_SCD_QUEUE_RDPTR(i), 0);
+ il_wr(il, HBUS_TARG_WRPTR, 0 | (i << 8));
+
+ /* Max Tx Window size for Scheduler-ACK mode */
+ il_write_targ_mem(il,
+ il->scd_base_addr +
+ IL49_SCD_CONTEXT_QUEUE_OFFSET(i),
+ (SCD_WIN_SIZE <<
+ IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
+ IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
+
+ /* Frame limit */
+ il_write_targ_mem(il,
+ il->scd_base_addr +
+ IL49_SCD_CONTEXT_QUEUE_OFFSET(i) +
+ sizeof(u32),
+ (SCD_FRAME_LIMIT <<
+ IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
+ IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
+
+ }
+ il_wr_prph(il, IL49_SCD_INTERRUPT_MASK,
+ (1 << il->hw_params.max_txq_num) - 1);
+
+ /* Activate all Tx DMA/FIFO channels */
+ il4965_txq_set_sched(il, IL_MASK(0, 6));
+
+ il4965_set_wr_ptrs(il, IL_DEFAULT_CMD_QUEUE_NUM, 0);
+
+ /* make sure all queue are not stopped */
+ memset(&il->queue_stopped[0], 0, sizeof(il->queue_stopped));
+ for (i = 0; i < 4; i++)
+ atomic_set(&il->queue_stop_count[i], 0);
+
+ /* reset to 0 to enable all the queue first */
+ il->txq_ctx_active_msk = 0;
+ /* Map each Tx/cmd queue to its corresponding fifo */
+ BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo) != 7);
+
+ for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) {
+ int ac = default_queue_to_tx_fifo[i];
+
+ il_txq_ctx_activate(il, i);
+
+ if (ac == IL_TX_FIFO_UNUSED)
+ continue;
+
+ il4965_tx_queue_set_status(il, &il->txq[i], ac, 0);
+ }
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ return 0;
+}
+
+/**
+ * il4965_alive_start - called after N_ALIVE notification received
+ * from protocol/runtime uCode (initialization uCode's
+ * Alive gets handled by il_init_alive_start()).
+ */
+static void
+il4965_alive_start(struct il_priv *il)
+{
+ int ret = 0;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ D_INFO("Runtime Alive received.\n");
+
+ if (il->card_alive.is_valid != UCODE_VALID_OK) {
+ /* We had an error bringing up the hardware, so take it
+ * all the way back down so we can try again */
+ D_INFO("Alive failed.\n");
+ goto restart;
+ }
+
+ /* Initialize uCode has loaded Runtime uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "runtime" alive if code weren't properly loaded. */
+ if (il4965_verify_ucode(il)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ D_INFO("Bad runtime uCode load.\n");
+ goto restart;
+ }
+
+ ret = il4965_alive_notify(il);
+ if (ret) {
+ IL_WARN("Could not complete ALIVE transition [ntf]: %d\n", ret);
+ goto restart;
+ }
+
+ /* After the ALIVE response, we can send host commands to the uCode */
+ set_bit(S_ALIVE, &il->status);
+
+ /* Enable watchdog to monitor the driver tx queues */
+ il_setup_watchdog(il);
+
+ if (il_is_rfkill(il))
+ return;
+
+ ieee80211_wake_queues(il->hw);
+
+ il->active_rate = RATES_MASK;
+
+ if (il_is_associated_ctx(ctx)) {
+ struct il_rxon_cmd *active_rxon =
+ (struct il_rxon_cmd *)&ctx->active;
+ /* apply any changes in staging */
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ } else {
+ /* Initialize our rx_config data */
+ il_connection_init_rx_config(il, &il->ctx);
+
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+ }
+
+ /* Configure bluetooth coexistence if enabled */
+ il_send_bt_config(il);
+
+ il4965_reset_run_time_calib(il);
+
+ set_bit(S_READY, &il->status);
+
+ /* Configure the adapter for unassociated operation */
+ il_commit_rxon(il, ctx);
+
+ /* At this point, the NIC is initialized and operational */
+ il4965_rf_kill_ct_config(il);
+
+ D_INFO("ALIVE processing complete.\n");
+ wake_up(&il->wait_command_queue);
+
+ il_power_update_mode(il, true);
+ D_INFO("Updated power mode\n");
+
+ return;
+
+restart:
+ queue_work(il->workqueue, &il->restart);
+}
+
+static void il4965_cancel_deferred_work(struct il_priv *il);
+
+static void
+__il4965_down(struct il_priv *il)
+{
+ unsigned long flags;
+ int exit_pending;
+
+ D_INFO(DRV_NAME " is going down\n");
+
+ il_scan_cancel_timeout(il, 200);
+
+ exit_pending = test_and_set_bit(S_EXIT_PENDING, &il->status);
+
+ /* Stop TX queues watchdog. We need to have S_EXIT_PENDING bit set
+ * to prevent rearm timer */
+ del_timer_sync(&il->watchdog);
+
+ il_clear_ucode_stations(il, NULL);
+ il_dealloc_bcast_stations(il);
+ il_clear_driver_stations(il);
+
+ /* Unblock any waiting calls */
+ wake_up_all(&il->wait_command_queue);
+
+ /* Wipe out the EXIT_PENDING status bit if we are not actually
+ * exiting the module */
+ if (!exit_pending)
+ clear_bit(S_EXIT_PENDING, &il->status);
+
+ /* stop and reset the on-board processor */
+ _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ /* tell the device to stop sending interrupts */
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+ il4965_synchronize_irq(il);
+
+ if (il->mac80211_registered)
+ ieee80211_stop_queues(il->hw);
+
+ /* If we have not previously called il_init() then
+ * clear all bits but the RF Kill bit and return */
+ if (!il_is_init(il)) {
+ il->status =
+ test_bit(S_RF_KILL_HW,
+ &il->
+ status) << S_RF_KILL_HW |
+ test_bit(S_GEO_CONFIGURED,
+ &il->
+ status) << S_GEO_CONFIGURED |
+ test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
+ goto exit;
+ }
+
+ /* ...otherwise clear out all the status bits but the RF Kill
+ * bit and continue taking the NIC down. */
+ il->status &=
+ test_bit(S_RF_KILL_HW,
+ &il->status) << S_RF_KILL_HW | test_bit(S_GEO_CONFIGURED,
+ &il->
+ status) <<
+ S_GEO_CONFIGURED | test_bit(S_FW_ERROR,
+ &il->
+ status) << S_FW_ERROR |
+ test_bit(S_EXIT_PENDING, &il->status) << S_EXIT_PENDING;
+
+ il4965_txq_ctx_stop(il);
+ il4965_rxq_stop(il);
+
+ /* Power-down device's busmaster DMA clocks */
+ il_wr_prph(il, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
+ udelay(5);
+
+ /* Make sure (redundant) we've released our request to stay awake */
+ il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+ /* Stop the device, and put it in low power state */
+ il_apm_stop(il);
+
+exit:
+ memset(&il->card_alive, 0, sizeof(struct il_alive_resp));
+
+ dev_kfree_skb(il->beacon_skb);
+ il->beacon_skb = NULL;
+
+ /* clear out any free frames */
+ il4965_clear_free_frames(il);
+}
+
+static void
+il4965_down(struct il_priv *il)
+{
+ mutex_lock(&il->mutex);
+ __il4965_down(il);
+ mutex_unlock(&il->mutex);
+
+ il4965_cancel_deferred_work(il);
+}
+
+#define HW_READY_TIMEOUT (50)
+
+static int
+il4965_set_hw_ready(struct il_priv *il)
+{
+ int ret = 0;
+
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_NIC_READY);
+
+ /* See if we got it */
+ ret =
+ _il_poll_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
+ CSR_HW_IF_CONFIG_REG_BIT_NIC_READY, HW_READY_TIMEOUT);
+ if (ret != -ETIMEDOUT)
+ il->hw_ready = true;
+ else
+ il->hw_ready = false;
+
+ D_INFO("hardware %s\n", (il->hw_ready == 1) ? "ready" : "not ready");
+ return ret;
+}
+
+static int
+il4965_prepare_card_hw(struct il_priv *il)
+{
+ int ret = 0;
+
+ D_INFO("il4965_prepare_card_hw enter\n");
+
+ ret = il4965_set_hw_ready(il);
+ if (il->hw_ready)
+ return ret;
+
+ /* If HW is not ready, prepare the conditions to check again */
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG, CSR_HW_IF_CONFIG_REG_PREPARE);
+
+ ret =
+ _il_poll_bit(il, CSR_HW_IF_CONFIG_REG,
+ ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
+ CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
+
+ /* HW should be ready by now, check again. */
+ if (ret != -ETIMEDOUT)
+ il4965_set_hw_ready(il);
+
+ return ret;
+}
+
+#define MAX_HW_RESTARTS 5
+
+static int
+__il4965_up(struct il_priv *il)
+{
+ int i;
+ int ret;
+
+ if (test_bit(S_EXIT_PENDING, &il->status)) {
+ IL_WARN("Exit pending; will not bring the NIC up\n");
+ return -EIO;
+ }
+
+ if (!il->ucode_data_backup.v_addr || !il->ucode_data.v_addr) {
+ IL_ERR("ucode not available for device bringup\n");
+ return -EIO;
+ }
+
+ ret = il4965_alloc_bcast_station(il, &il->ctx);
+ if (ret) {
+ il_dealloc_bcast_stations(il);
+ return ret;
+ }
+
+ il4965_prepare_card_hw(il);
+
+ if (!il->hw_ready) {
+ IL_WARN("Exit HW not ready\n");
+ return -EIO;
+ }
+
+ /* If platform's RF_KILL switch is NOT set to KILL */
+ if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+ clear_bit(S_RF_KILL_HW, &il->status);
+ else
+ set_bit(S_RF_KILL_HW, &il->status);
+
+ if (il_is_rfkill(il)) {
+ wiphy_rfkill_set_hw_state(il->hw->wiphy, true);
+
+ il_enable_interrupts(il);
+ IL_WARN("Radio disabled by HW RF Kill switch\n");
+ return 0;
+ }
+
+ _il_wr(il, CSR_INT, 0xFFFFFFFF);
+
+ /* must be initialised before il_hw_nic_init */
+ il->cmd_queue = IL_DEFAULT_CMD_QUEUE_NUM;
+
+ ret = il4965_hw_nic_init(il);
+ if (ret) {
+ IL_ERR("Unable to init nic\n");
+ return ret;
+ }
+
+ /* make sure rfkill handshake bits are cleared */
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
+
+ /* clear (again), then enable host interrupts */
+ _il_wr(il, CSR_INT, 0xFFFFFFFF);
+ il_enable_interrupts(il);
+
+ /* really make sure rfkill handshake bits are cleared */
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+ _il_wr(il, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
+
+ /* Copy original ucode data image from disk into backup cache.
+ * This will be used to initialize the on-board processor's
+ * data SRAM for a clean start when the runtime program first loads. */
+ memcpy(il->ucode_data_backup.v_addr, il->ucode_data.v_addr,
+ il->ucode_data.len);
+
+ for (i = 0; i < MAX_HW_RESTARTS; i++) {
+
+ /* load bootstrap state machine,
+ * load bootstrap program into processor's memory,
+ * prepare to load the "initialize" uCode */
+ ret = il->cfg->ops->lib->load_ucode(il);
+
+ if (ret) {
+ IL_ERR("Unable to set up bootstrap uCode: %d\n", ret);
+ continue;
+ }
+
+ /* start card; "initialize" will load runtime ucode */
+ il4965_nic_start(il);
+
+ D_INFO(DRV_NAME " is coming up\n");
+
+ return 0;
+ }
+
+ set_bit(S_EXIT_PENDING, &il->status);
+ __il4965_down(il);
+ clear_bit(S_EXIT_PENDING, &il->status);
+
+ /* tried to restart and config the device for as long as our
+ * patience could withstand */
+ IL_ERR("Unable to initialize device after %d attempts.\n", i);
+ return -EIO;
+}
+
+/*****************************************************************************
+ *
+ * Workqueue callbacks
+ *
+ *****************************************************************************/
+
+static void
+il4965_bg_init_alive_start(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, init_alive_start.work);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ goto out;
+
+ il->cfg->ops->lib->init_alive_start(il);
+out:
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il4965_bg_alive_start(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, alive_start.work);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ goto out;
+
+ il4965_alive_start(il);
+out:
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il4965_bg_run_time_calib_work(struct work_struct *work)
+{
+ struct il_priv *il = container_of(work, struct il_priv,
+ run_time_calib_work);
+
+ mutex_lock(&il->mutex);
+
+ if (test_bit(S_EXIT_PENDING, &il->status) ||
+ test_bit(S_SCANNING, &il->status)) {
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ if (il->start_calib) {
+ il4965_chain_noise_calibration(il, (void *)&il->_4965.stats);
+ il4965_sensitivity_calibration(il, (void *)&il->_4965.stats);
+ }
+
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il4965_bg_restart(struct work_struct *data)
+{
+ struct il_priv *il = container_of(data, struct il_priv, restart);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ if (test_and_clear_bit(S_FW_ERROR, &il->status)) {
+ mutex_lock(&il->mutex);
+ il->ctx.vif = NULL;
+ il->is_open = 0;
+
+ __il4965_down(il);
+
+ mutex_unlock(&il->mutex);
+ il4965_cancel_deferred_work(il);
+ ieee80211_restart_hw(il->hw);
+ } else {
+ il4965_down(il);
+
+ mutex_lock(&il->mutex);
+ if (test_bit(S_EXIT_PENDING, &il->status)) {
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ __il4965_up(il);
+ mutex_unlock(&il->mutex);
+ }
+}
+
+static void
+il4965_bg_rx_replenish(struct work_struct *data)
+{
+ struct il_priv *il = container_of(data, struct il_priv, rx_replenish);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ mutex_lock(&il->mutex);
+ il4965_rx_replenish(il);
+ mutex_unlock(&il->mutex);
+}
+
+/*****************************************************************************
+ *
+ * mac80211 entry point functions
+ *
+ *****************************************************************************/
+
+#define UCODE_READY_TIMEOUT (4 * HZ)
+
+/*
+ * Not a mac80211 entry point function, but it fits in with all the
+ * other mac80211 functions grouped here.
+ */
+static int
+il4965_mac_setup_register(struct il_priv *il, u32 max_probe_length)
+{
+ int ret;
+ struct ieee80211_hw *hw = il->hw;
+
+ hw->rate_control_algorithm = "iwl-4965-rs";
+
+ /* Tell mac80211 our characteristics */
+ hw->flags =
+ IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_AMPDU_AGGREGATION |
+ IEEE80211_HW_NEED_DTIM_PERIOD | IEEE80211_HW_SPECTRUM_MGMT |
+ IEEE80211_HW_REPORTS_TX_ACK_STATUS;
+
+ if (il->cfg->sku & IL_SKU_N)
+ hw->flags |=
+ IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
+ IEEE80211_HW_SUPPORTS_STATIC_SMPS;
+
+ hw->sta_data_size = sizeof(struct il_station_priv);
+ hw->vif_data_size = sizeof(struct il_vif_priv);
+
+ hw->wiphy->interface_modes |= il->ctx.interface_modes;
+ hw->wiphy->interface_modes |= il->ctx.exclusive_interface_modes;
+
+ hw->wiphy->flags |=
+ WIPHY_FLAG_CUSTOM_REGULATORY | WIPHY_FLAG_DISABLE_BEACON_HINTS;
+
+ /*
+ * For now, disable PS by default because it affects
+ * RX performance significantly.
+ */
+ hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+
+ hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
+ /* we create the 802.11 header and a zero-length SSID element */
+ hw->wiphy->max_scan_ie_len = max_probe_length - 24 - 2;
+
+ /* Default value; 4 EDCA QOS priorities */
+ hw->queues = 4;
+
+ hw->max_listen_interval = IL_CONN_MAX_LISTEN_INTERVAL;
+
+ if (il->bands[IEEE80211_BAND_2GHZ].n_channels)
+ il->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
+ &il->bands[IEEE80211_BAND_2GHZ];
+ if (il->bands[IEEE80211_BAND_5GHZ].n_channels)
+ il->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
+ &il->bands[IEEE80211_BAND_5GHZ];
+
+ il_leds_init(il);
+
+ ret = ieee80211_register_hw(il->hw);
+ if (ret) {
+ IL_ERR("Failed to register hw (error %d)\n", ret);
+ return ret;
+ }
+ il->mac80211_registered = 1;
+
+ return 0;
+}
+
+int
+il4965_mac_start(struct ieee80211_hw *hw)
+{
+ struct il_priv *il = hw->priv;
+ int ret;
+
+ D_MAC80211("enter\n");
+
+ /* we should be verifying the device is ready to be opened */
+ mutex_lock(&il->mutex);
+ ret = __il4965_up(il);
+ mutex_unlock(&il->mutex);
+
+ if (ret)
+ return ret;
+
+ if (il_is_rfkill(il))
+ goto out;
+
+ D_INFO("Start UP work done.\n");
+
+ /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
+ * mac80211 will not be run successfully. */
+ ret = wait_event_timeout(il->wait_command_queue,
+ test_bit(S_READY, &il->status),
+ UCODE_READY_TIMEOUT);
+ if (!ret) {
+ if (!test_bit(S_READY, &il->status)) {
+ IL_ERR("START_ALIVE timeout after %dms.\n",
+ jiffies_to_msecs(UCODE_READY_TIMEOUT));
+ return -ETIMEDOUT;
+ }
+ }
+
+ il4965_led_enable(il);
+
+out:
+ il->is_open = 1;
+ D_MAC80211("leave\n");
+ return 0;
+}
+
+void
+il4965_mac_stop(struct ieee80211_hw *hw)
+{
+ struct il_priv *il = hw->priv;
+
+ D_MAC80211("enter\n");
+
+ if (!il->is_open)
+ return;
+
+ il->is_open = 0;
+
+ il4965_down(il);
+
+ flush_workqueue(il->workqueue);
+
+ /* User space software may expect getting rfkill changes
+ * even if interface is down */
+ _il_wr(il, CSR_INT, 0xFFFFFFFF);
+ il_enable_rfkill_int(il);
+
+ D_MAC80211("leave\n");
+}
+
+void
+il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
+{
+ struct il_priv *il = hw->priv;
+
+ D_MACDUMP("enter\n");
+
+ D_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
+ ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
+
+ if (il4965_tx_skb(il, skb))
+ dev_kfree_skb_any(skb);
+
+ D_MACDUMP("leave\n");
+}
+
+void
+il4965_mac_update_tkip_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_key_conf *keyconf,
+ struct ieee80211_sta *sta, u32 iv32, u16 * phase1key)
+{
+ struct il_priv *il = hw->priv;
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+
+ D_MAC80211("enter\n");
+
+ il4965_update_tkip_key(il, vif_priv->ctx, keyconf, sta, iv32,
+ phase1key);
+
+ D_MAC80211("leave\n");
+}
+
+int
+il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key)
+{
+ struct il_priv *il = hw->priv;
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+ struct il_rxon_context *ctx = vif_priv->ctx;
+ int ret;
+ u8 sta_id;
+ bool is_default_wep_key = false;
+
+ D_MAC80211("enter\n");
+
+ if (il->cfg->mod_params->sw_crypto) {
+ D_MAC80211("leave - hwcrypto disabled\n");
+ return -EOPNOTSUPP;
+ }
+
+ sta_id = il_sta_id_or_broadcast(il, vif_priv->ctx, sta);
+ if (sta_id == IL_INVALID_STATION)
+ return -EINVAL;
+
+ mutex_lock(&il->mutex);
+ il_scan_cancel_timeout(il, 100);
+
+ /*
+ * If we are getting WEP group key and we didn't receive any key mapping
+ * so far, we are in legacy wep mode (group key only), otherwise we are
+ * in 1X mode.
+ * In legacy wep mode, we use another host command to the uCode.
+ */
+ if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
+ key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
+ if (cmd == SET_KEY)
+ is_default_wep_key = !ctx->key_mapping_keys;
+ else
+ is_default_wep_key =
+ (key->hw_key_idx == HW_KEY_DEFAULT);
+ }
+
+ switch (cmd) {
+ case SET_KEY:
+ if (is_default_wep_key)
+ ret =
+ il4965_set_default_wep_key(il, vif_priv->ctx, key);
+ else
+ ret =
+ il4965_set_dynamic_key(il, vif_priv->ctx, key,
+ sta_id);
+
+ D_MAC80211("enable hwcrypto key\n");
+ break;
+ case DISABLE_KEY:
+ if (is_default_wep_key)
+ ret = il4965_remove_default_wep_key(il, ctx, key);
+ else
+ ret = il4965_remove_dynamic_key(il, ctx, key, sta_id);
+
+ D_MAC80211("disable hwcrypto key\n");
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ mutex_unlock(&il->mutex);
+ D_MAC80211("leave\n");
+
+ return ret;
+}
+
+int
+il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 * ssn,
+ u8 buf_size)
+{
+ struct il_priv *il = hw->priv;
+ int ret = -EINVAL;
+
+ D_HT("A-MPDU action on addr %pM tid %d\n", sta->addr, tid);
+
+ if (!(il->cfg->sku & IL_SKU_N))
+ return -EACCES;
+
+ mutex_lock(&il->mutex);
+
+ switch (action) {
+ case IEEE80211_AMPDU_RX_START:
+ D_HT("start Rx\n");
+ ret = il4965_sta_rx_agg_start(il, sta, tid, *ssn);
+ break;
+ case IEEE80211_AMPDU_RX_STOP:
+ D_HT("stop Rx\n");
+ ret = il4965_sta_rx_agg_stop(il, sta, tid);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ ret = 0;
+ break;
+ case IEEE80211_AMPDU_TX_START:
+ D_HT("start Tx\n");
+ ret = il4965_tx_agg_start(il, vif, sta, tid, ssn);
+ break;
+ case IEEE80211_AMPDU_TX_STOP:
+ D_HT("stop Tx\n");
+ ret = il4965_tx_agg_stop(il, vif, sta, tid);
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ ret = 0;
+ break;
+ case IEEE80211_AMPDU_TX_OPERATIONAL:
+ ret = 0;
+ break;
+ }
+ mutex_unlock(&il->mutex);
+
+ return ret;
+}
+
+int
+il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct il_priv *il = hw->priv;
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+ bool is_ap = vif->type == NL80211_IFTYPE_STATION;
+ int ret;
+ u8 sta_id;
+
+ D_INFO("received request to add station %pM\n", sta->addr);
+ mutex_lock(&il->mutex);
+ D_INFO("proceeding to add station %pM\n", sta->addr);
+ sta_priv->common.sta_id = IL_INVALID_STATION;
+
+ atomic_set(&sta_priv->pending_frames, 0);
+
+ ret =
+ il_add_station_common(il, vif_priv->ctx, sta->addr, is_ap, sta,
+ &sta_id);
+ if (ret) {
+ IL_ERR("Unable to add station %pM (%d)\n", sta->addr, ret);
+ /* Should we return success if return code is EEXIST ? */
+ mutex_unlock(&il->mutex);
+ return ret;
+ }
+
+ sta_priv->common.sta_id = sta_id;
+
+ /* Initialize rate scaling */
+ D_INFO("Initializing rate scaling for station %pM\n", sta->addr);
+ il4965_rs_rate_init(il, sta, sta_id);
+ mutex_unlock(&il->mutex);
+
+ return 0;
+}
+
+void
+il4965_mac_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_channel_switch *ch_switch)
+{
+ struct il_priv *il = hw->priv;
+ const struct il_channel_info *ch_info;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct ieee80211_channel *channel = ch_switch->channel;
+ struct il_ht_config *ht_conf = &il->current_ht_config;
+
+ struct il_rxon_context *ctx = &il->ctx;
+ u16 ch;
+
+ D_MAC80211("enter\n");
+
+ mutex_lock(&il->mutex);
+
+ if (il_is_rfkill(il))
+ goto out;
+
+ if (test_bit(S_EXIT_PENDING, &il->status) ||
+ test_bit(S_SCANNING, &il->status) ||
+ test_bit(S_CHANNEL_SWITCH_PENDING, &il->status))
+ goto out;
+
+ if (!il_is_associated_ctx(ctx))
+ goto out;
+
+ if (!il->cfg->ops->lib->set_channel_switch)
+ goto out;
+
+ ch = channel->hw_value;
+ if (le16_to_cpu(ctx->active.channel) == ch)
+ goto out;
+
+ ch_info = il_get_channel_info(il, channel->band, ch);
+ if (!il_is_channel_valid(ch_info)) {
+ D_MAC80211("invalid channel\n");
+ goto out;
+ }
+
+ spin_lock_irq(&il->lock);
+
+ il->current_ht_config.smps = conf->smps_mode;
+
+ /* Configure HT40 channels */
+ ctx->ht.enabled = conf_is_ht(conf);
+ if (ctx->ht.enabled) {
+ if (conf_is_ht40_minus(conf)) {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ ctx->ht.is_40mhz = true;
+ } else if (conf_is_ht40_plus(conf)) {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+ ctx->ht.is_40mhz = true;
+ } else {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ ctx->ht.is_40mhz = false;
+ }
+ } else
+ ctx->ht.is_40mhz = false;
+
+ if ((le16_to_cpu(ctx->staging.channel) != ch))
+ ctx->staging.flags = 0;
+
+ il_set_rxon_channel(il, channel, ctx);
+ il_set_rxon_ht(il, ht_conf);
+ il_set_flags_for_band(il, ctx, channel->band, ctx->vif);
+
+ spin_unlock_irq(&il->lock);
+
+ il_set_rate(il);
+ /*
+ * at this point, staging_rxon has the
+ * configuration for channel switch
+ */
+ set_bit(S_CHANNEL_SWITCH_PENDING, &il->status);
+ il->switch_channel = cpu_to_le16(ch);
+ if (il->cfg->ops->lib->set_channel_switch(il, ch_switch)) {
+ clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status);
+ il->switch_channel = 0;
+ ieee80211_chswitch_done(ctx->vif, false);
+ }
+
+out:
+ mutex_unlock(&il->mutex);
+ D_MAC80211("leave\n");
+}
+
+void
+il4965_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast)
+{
+ struct il_priv *il = hw->priv;
+ __le32 filter_or = 0, filter_nand = 0;
+
+#define CHK(test, flag) do { \
+ if (*total_flags & (test)) \
+ filter_or |= (flag); \
+ else \
+ filter_nand |= (flag); \
+ } while (0)
+
+ D_MAC80211("Enter: changed: 0x%x, total: 0x%x\n", changed_flags,
+ *total_flags);
+
+ CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
+ /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
+ CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
+ CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
+
+#undef CHK
+
+ mutex_lock(&il->mutex);
+
+ il->ctx.staging.filter_flags &= ~filter_nand;
+ il->ctx.staging.filter_flags |= filter_or;
+
+ /*
+ * Not committing directly because hardware can perform a scan,
+ * but we'll eventually commit the filter flags change anyway.
+ */
+
+ mutex_unlock(&il->mutex);
+
+ /*
+ * Receiving all multicast frames is always enabled by the
+ * default flags setup in il_connection_init_rx_config()
+ * since we currently do not support programming multicast
+ * filters into the device.
+ */
+ *total_flags &=
+ FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
+ FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
+}
+
+/*****************************************************************************
+ *
+ * driver setup and teardown
+ *
+ *****************************************************************************/
+
+static void
+il4965_bg_txpower_work(struct work_struct *work)
+{
+ struct il_priv *il = container_of(work, struct il_priv,
+ txpower_work);
+
+ mutex_lock(&il->mutex);
+
+ /* If a scan happened to start before we got here
+ * then just return; the stats notification will
+ * kick off another scheduled work to compensate for
+ * any temperature delta we missed here. */
+ if (test_bit(S_EXIT_PENDING, &il->status) ||
+ test_bit(S_SCANNING, &il->status))
+ goto out;
+
+ /* Regardless of if we are associated, we must reconfigure the
+ * TX power since frames can be sent on non-radar channels while
+ * not associated */
+ il->cfg->ops->lib->send_tx_power(il);
+
+ /* Update last_temperature to keep is_calib_needed from running
+ * when it isn't needed... */
+ il->last_temperature = il->temperature;
+out:
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il4965_setup_deferred_work(struct il_priv *il)
+{
+ il->workqueue = create_singlethread_workqueue(DRV_NAME);
+
+ init_waitqueue_head(&il->wait_command_queue);
+
+ INIT_WORK(&il->restart, il4965_bg_restart);
+ INIT_WORK(&il->rx_replenish, il4965_bg_rx_replenish);
+ INIT_WORK(&il->run_time_calib_work, il4965_bg_run_time_calib_work);
+ INIT_DELAYED_WORK(&il->init_alive_start, il4965_bg_init_alive_start);
+ INIT_DELAYED_WORK(&il->alive_start, il4965_bg_alive_start);
+
+ il_setup_scan_deferred_work(il);
+
+ INIT_WORK(&il->txpower_work, il4965_bg_txpower_work);
+
+ init_timer(&il->stats_periodic);
+ il->stats_periodic.data = (unsigned long)il;
+ il->stats_periodic.function = il4965_bg_stats_periodic;
+
+ init_timer(&il->watchdog);
+ il->watchdog.data = (unsigned long)il;
+ il->watchdog.function = il_bg_watchdog;
+
+ tasklet_init(&il->irq_tasklet,
+ (void (*)(unsigned long))il4965_irq_tasklet,
+ (unsigned long)il);
+}
+
+static void
+il4965_cancel_deferred_work(struct il_priv *il)
+{
+ cancel_work_sync(&il->txpower_work);
+ cancel_delayed_work_sync(&il->init_alive_start);
+ cancel_delayed_work(&il->alive_start);
+ cancel_work_sync(&il->run_time_calib_work);
+
+ il_cancel_scan_deferred_work(il);
+
+ del_timer_sync(&il->stats_periodic);
+}
+
+static void
+il4965_init_hw_rates(struct il_priv *il, struct ieee80211_rate *rates)
+{
+ int i;
+
+ for (i = 0; i < RATE_COUNT_LEGACY; i++) {
+ rates[i].bitrate = il_rates[i].ieee * 5;
+ rates[i].hw_value = i; /* Rate scaling will work on idxes */
+ rates[i].hw_value_short = i;
+ rates[i].flags = 0;
+ if ((i >= IL_FIRST_CCK_RATE) && (i <= IL_LAST_CCK_RATE)) {
+ /*
+ * If CCK != 1M then set short preamble rate flag.
+ */
+ rates[i].flags |=
+ (il_rates[i].plcp ==
+ RATE_1M_PLCP) ? 0 : IEEE80211_RATE_SHORT_PREAMBLE;
+ }
+ }
+}
+
+/*
+ * Acquire il->lock before calling this function !
+ */
+void
+il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx)
+{
+ il_wr(il, HBUS_TARG_WRPTR, (idx & 0xff) | (txq_id << 8));
+ il_wr_prph(il, IL49_SCD_QUEUE_RDPTR(txq_id), idx);
+}
+
+void
+il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq,
+ int tx_fifo_id, int scd_retry)
+{
+ int txq_id = txq->q.id;
+
+ /* Find out whether to activate Tx queue */
+ int active = test_bit(txq_id, &il->txq_ctx_active_msk) ? 1 : 0;
+
+ /* Set up and activate */
+ il_wr_prph(il, IL49_SCD_QUEUE_STATUS_BITS(txq_id),
+ (active << IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
+ (tx_fifo_id << IL49_SCD_QUEUE_STTS_REG_POS_TXF) |
+ (scd_retry << IL49_SCD_QUEUE_STTS_REG_POS_WSL) |
+ (scd_retry << IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
+ IL49_SCD_QUEUE_STTS_REG_MSK);
+
+ txq->sched_retry = scd_retry;
+
+ D_INFO("%s %s Queue %d on AC %d\n", active ? "Activate" : "Deactivate",
+ scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
+}
+
+static int
+il4965_init_drv(struct il_priv *il)
+{
+ int ret;
+
+ spin_lock_init(&il->sta_lock);
+ spin_lock_init(&il->hcmd_lock);
+
+ INIT_LIST_HEAD(&il->free_frames);
+
+ mutex_init(&il->mutex);
+
+ il->ieee_channels = NULL;
+ il->ieee_rates = NULL;
+ il->band = IEEE80211_BAND_2GHZ;
+
+ il->iw_mode = NL80211_IFTYPE_STATION;
+ il->current_ht_config.smps = IEEE80211_SMPS_STATIC;
+ il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF;
+
+ /* initialize force reset */
+ il->force_reset.reset_duration = IL_DELAY_NEXT_FORCE_FW_RELOAD;
+
+ /* Choose which receivers/antennas to use */
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx);
+
+ il_init_scan_params(il);
+
+ ret = il_init_channel_map(il);
+ if (ret) {
+ IL_ERR("initializing regulatory failed: %d\n", ret);
+ goto err;
+ }
+
+ ret = il_init_geos(il);
+ if (ret) {
+ IL_ERR("initializing geos failed: %d\n", ret);
+ goto err_free_channel_map;
+ }
+ il4965_init_hw_rates(il, il->ieee_rates);
+
+ return 0;
+
+err_free_channel_map:
+ il_free_channel_map(il);
+err:
+ return ret;
+}
+
+static void
+il4965_uninit_drv(struct il_priv *il)
+{
+ il4965_calib_free_results(il);
+ il_free_geos(il);
+ il_free_channel_map(il);
+ kfree(il->scan_cmd);
+}
+
+static void
+il4965_hw_detect(struct il_priv *il)
+{
+ il->hw_rev = _il_rd(il, CSR_HW_REV);
+ il->hw_wa_rev = _il_rd(il, CSR_HW_REV_WA_REG);
+ il->rev_id = il->pci_dev->revision;
+ D_INFO("HW Revision ID = 0x%X\n", il->rev_id);
+}
+
+static int
+il4965_set_hw_params(struct il_priv *il)
+{
+ il->hw_params.max_rxq_size = RX_QUEUE_SIZE;
+ il->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
+ if (il->cfg->mod_params->amsdu_size_8K)
+ il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_8K);
+ else
+ il->hw_params.rx_page_order = get_order(IL_RX_BUF_SIZE_4K);
+
+ il->hw_params.max_beacon_itrvl = IL_MAX_UCODE_BEACON_INTERVAL;
+
+ if (il->cfg->mod_params->disable_11n)
+ il->cfg->sku &= ~IL_SKU_N;
+
+ /* Device-specific setup */
+ return il->cfg->ops->lib->set_hw_params(il);
+}
+
+static const u8 il4965_bss_ac_to_fifo[] = {
+ IL_TX_FIFO_VO,
+ IL_TX_FIFO_VI,
+ IL_TX_FIFO_BE,
+ IL_TX_FIFO_BK,
+};
+
+static const u8 il4965_bss_ac_to_queue[] = {
+ 0, 1, 2, 3,
+};
+
+static int
+il4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+ int err = 0;
+ struct il_priv *il;
+ struct ieee80211_hw *hw;
+ struct il_cfg *cfg = (struct il_cfg *)(ent->driver_data);
+ unsigned long flags;
+ u16 pci_cmd;
+
+ /************************
+ * 1. Allocating HW data
+ ************************/
+
+ hw = il_alloc_all(cfg);
+ if (!hw) {
+ err = -ENOMEM;
+ goto out;
+ }
+ il = hw->priv;
+ /* At this point both hw and il are allocated. */
+
+ il->ctx.ctxid = 0;
+
+ il->ctx.always_active = true;
+ il->ctx.is_active = true;
+ il->ctx.rxon_cmd = C_RXON;
+ il->ctx.rxon_timing_cmd = C_RXON_TIMING;
+ il->ctx.rxon_assoc_cmd = C_RXON_ASSOC;
+ il->ctx.qos_cmd = C_QOS_PARAM;
+ il->ctx.ap_sta_id = IL_AP_ID;
+ il->ctx.wep_key_cmd = C_WEPKEY;
+ il->ctx.ac_to_fifo = il4965_bss_ac_to_fifo;
+ il->ctx.ac_to_queue = il4965_bss_ac_to_queue;
+ il->ctx.exclusive_interface_modes = BIT(NL80211_IFTYPE_ADHOC);
+ il->ctx.interface_modes = BIT(NL80211_IFTYPE_STATION);
+ il->ctx.ap_devtype = RXON_DEV_TYPE_AP;
+ il->ctx.ibss_devtype = RXON_DEV_TYPE_IBSS;
+ il->ctx.station_devtype = RXON_DEV_TYPE_ESS;
+ il->ctx.unused_devtype = RXON_DEV_TYPE_ESS;
+
+ SET_IEEE80211_DEV(hw, &pdev->dev);
+
+ D_INFO("*** LOAD DRIVER ***\n");
+ il->cfg = cfg;
+ il->pci_dev = pdev;
+ il->inta_mask = CSR_INI_SET_MASK;
+
+ if (il_alloc_traffic_mem(il))
+ IL_ERR("Not enough memory to generate traffic log\n");
+
+ /**************************
+ * 2. Initializing PCI bus
+ **************************/
+ pci_disable_link_state(pdev,
+ PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+ PCIE_LINK_STATE_CLKPM);
+
+ if (pci_enable_device(pdev)) {
+ err = -ENODEV;
+ goto out_ieee80211_free_hw;
+ }
+
+ pci_set_master(pdev);
+
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
+ if (!err)
+ err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
+ if (err) {
+ err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+ if (!err)
+ err =
+ pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
+ /* both attempts failed: */
+ if (err) {
+ IL_WARN("No suitable DMA available.\n");
+ goto out_pci_disable_device;
+ }
+ }
+
+ err = pci_request_regions(pdev, DRV_NAME);
+ if (err)
+ goto out_pci_disable_device;
+
+ pci_set_drvdata(pdev, il);
+
+ /***********************
+ * 3. Read REV register
+ ***********************/
+ il->hw_base = pci_iomap(pdev, 0, 0);
+ if (!il->hw_base) {
+ err = -ENODEV;
+ goto out_pci_release_regions;
+ }
+
+ D_INFO("pci_resource_len = 0x%08llx\n",
+ (unsigned long long)pci_resource_len(pdev, 0));
+ D_INFO("pci_resource_base = %p\n", il->hw_base);
+
+ /* these spin locks will be used in apm_ops.init and EEPROM access
+ * we should init now
+ */
+ spin_lock_init(&il->reg_lock);
+ spin_lock_init(&il->lock);
+
+ /*
+ * stop and reset the on-board processor just in case it is in a
+ * strange state ... like being left stranded by a primary kernel
+ * and this is now the kdump kernel trying to start up
+ */
+ _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
+
+ il4965_hw_detect(il);
+ IL_INFO("Detected %s, REV=0x%X\n", il->cfg->name, il->hw_rev);
+
+ /* We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state */
+ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
+
+ il4965_prepare_card_hw(il);
+ if (!il->hw_ready) {
+ IL_WARN("Failed, HW not ready\n");
+ goto out_iounmap;
+ }
+
+ /*****************
+ * 4. Read EEPROM
+ *****************/
+ /* Read the EEPROM */
+ err = il_eeprom_init(il);
+ if (err) {
+ IL_ERR("Unable to init EEPROM\n");
+ goto out_iounmap;
+ }
+ err = il4965_eeprom_check_version(il);
+ if (err)
+ goto out_free_eeprom;
+
+ if (err)
+ goto out_free_eeprom;
+
+ /* extract MAC Address */
+ il4965_eeprom_get_mac(il, il->addresses[0].addr);
+ D_INFO("MAC address: %pM\n", il->addresses[0].addr);
+ il->hw->wiphy->addresses = il->addresses;
+ il->hw->wiphy->n_addresses = 1;
+
+ /************************
+ * 5. Setup HW constants
+ ************************/
+ if (il4965_set_hw_params(il)) {
+ IL_ERR("failed to set hw parameters\n");
+ goto out_free_eeprom;
+ }
+
+ /*******************
+ * 6. Setup il
+ *******************/
+
+ err = il4965_init_drv(il);
+ if (err)
+ goto out_free_eeprom;
+ /* At this point both hw and il are initialized. */
+
+ /********************
+ * 7. Setup services
+ ********************/
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ pci_enable_msi(il->pci_dev);
+
+ err = request_irq(il->pci_dev->irq, il_isr, IRQF_SHARED, DRV_NAME, il);
+ if (err) {
+ IL_ERR("Error allocating IRQ %d\n", il->pci_dev->irq);
+ goto out_disable_msi;
+ }
+
+ il4965_setup_deferred_work(il);
+ il4965_setup_handlers(il);
+
+ /*********************************************
+ * 8. Enable interrupts and read RFKILL state
+ *********************************************/
+
+ /* enable rfkill interrupt: hw bug w/a */
+ pci_read_config_word(il->pci_dev, PCI_COMMAND, &pci_cmd);
+ if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
+ pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
+ pci_write_config_word(il->pci_dev, PCI_COMMAND, pci_cmd);
+ }
+
+ il_enable_rfkill_int(il);
+
+ /* If platform's RF_KILL switch is NOT set to KILL */
+ if (_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
+ clear_bit(S_RF_KILL_HW, &il->status);
+ else
+ set_bit(S_RF_KILL_HW, &il->status);
+
+ wiphy_rfkill_set_hw_state(il->hw->wiphy,
+ test_bit(S_RF_KILL_HW, &il->status));
+
+ il_power_initialize(il);
+
+ init_completion(&il->_4965.firmware_loading_complete);
+
+ err = il4965_request_firmware(il, true);
+ if (err)
+ goto out_destroy_workqueue;
+
+ return 0;
+
+out_destroy_workqueue:
+ destroy_workqueue(il->workqueue);
+ il->workqueue = NULL;
+ free_irq(il->pci_dev->irq, il);
+out_disable_msi:
+ pci_disable_msi(il->pci_dev);
+ il4965_uninit_drv(il);
+out_free_eeprom:
+ il_eeprom_free(il);
+out_iounmap:
+ pci_iounmap(pdev, il->hw_base);
+out_pci_release_regions:
+ pci_set_drvdata(pdev, NULL);
+ pci_release_regions(pdev);
+out_pci_disable_device:
+ pci_disable_device(pdev);
+out_ieee80211_free_hw:
+ il_free_traffic_mem(il);
+ ieee80211_free_hw(il->hw);
+out:
+ return err;
+}
+
+static void __devexit
+il4965_pci_remove(struct pci_dev *pdev)
+{
+ struct il_priv *il = pci_get_drvdata(pdev);
+ unsigned long flags;
+
+ if (!il)
+ return;
+
+ wait_for_completion(&il->_4965.firmware_loading_complete);
+
+ D_INFO("*** UNLOAD DRIVER ***\n");
+
+ il_dbgfs_unregister(il);
+ sysfs_remove_group(&pdev->dev.kobj, &il_attribute_group);
+
+ /* ieee80211_unregister_hw call wil cause il_mac_stop to
+ * to be called and il4965_down since we are removing the device
+ * we need to set S_EXIT_PENDING bit.
+ */
+ set_bit(S_EXIT_PENDING, &il->status);
+
+ il_leds_exit(il);
+
+ if (il->mac80211_registered) {
+ ieee80211_unregister_hw(il->hw);
+ il->mac80211_registered = 0;
+ } else {
+ il4965_down(il);
+ }
+
+ /*
+ * Make sure device is reset to low power before unloading driver.
+ * This may be redundant with il4965_down(), but there are paths to
+ * run il4965_down() without calling apm_ops.stop(), and there are
+ * paths to avoid running il4965_down() at all before leaving driver.
+ * This (inexpensive) call *makes sure* device is reset.
+ */
+ il_apm_stop(il);
+
+ /* make sure we flush any pending irq or
+ * tasklet for the driver
+ */
+ spin_lock_irqsave(&il->lock, flags);
+ il_disable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ il4965_synchronize_irq(il);
+
+ il4965_dealloc_ucode_pci(il);
+
+ if (il->rxq.bd)
+ il4965_rx_queue_free(il, &il->rxq);
+ il4965_hw_txq_ctx_free(il);
+
+ il_eeprom_free(il);
+
+ /*netif_stop_queue(dev); */
+ flush_workqueue(il->workqueue);
+
+ /* ieee80211_unregister_hw calls il_mac_stop, which flushes
+ * il->workqueue... so we can't take down the workqueue
+ * until now... */
+ destroy_workqueue(il->workqueue);
+ il->workqueue = NULL;
+ il_free_traffic_mem(il);
+
+ free_irq(il->pci_dev->irq, il);
+ pci_disable_msi(il->pci_dev);
+ pci_iounmap(pdev, il->hw_base);
+ pci_release_regions(pdev);
+ pci_disable_device(pdev);
+ pci_set_drvdata(pdev, NULL);
+
+ il4965_uninit_drv(il);
+
+ dev_kfree_skb(il->beacon_skb);
+
+ ieee80211_free_hw(il->hw);
+}
+
+/*
+ * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
+ * must be called under il->lock and mac access
+ */
+void
+il4965_txq_set_sched(struct il_priv *il, u32 mask)
+{
+ il_wr_prph(il, IL49_SCD_TXFACT, mask);
+}
+
+/*****************************************************************************
+ *
+ * driver and module entry point
+ *
+ *****************************************************************************/
+
+/* Hardware specific file defines the PCI IDs table for that hardware module */
+static DEFINE_PCI_DEVICE_TABLE(il4965_hw_card_ids) = {
+ {IL_PCI_DEVICE(0x4229, PCI_ANY_ID, il4965_cfg)},
+ {IL_PCI_DEVICE(0x4230, PCI_ANY_ID, il4965_cfg)},
+ {0}
+};
+MODULE_DEVICE_TABLE(pci, il4965_hw_card_ids);
+
+static struct pci_driver il4965_driver = {
+ .name = DRV_NAME,
+ .id_table = il4965_hw_card_ids,
+ .probe = il4965_pci_probe,
+ .remove = __devexit_p(il4965_pci_remove),
+ .driver.pm = IL_LEGACY_PM_OPS,
+};
+
+static int __init
+il4965_init(void)
+{
+
+ int ret;
+ pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
+ pr_info(DRV_COPYRIGHT "\n");
+
+ ret = il4965_rate_control_register();
+ if (ret) {
+ pr_err("Unable to register rate control algorithm: %d\n", ret);
+ return ret;
+ }
+
+ ret = pci_register_driver(&il4965_driver);
+ if (ret) {
+ pr_err("Unable to initialize PCI module\n");
+ goto error_register;
+ }
+
+ return ret;
+
+error_register:
+ il4965_rate_control_unregister();
+ return ret;
+}
+
+static void __exit
+il4965_exit(void)
+{
+ pci_unregister_driver(&il4965_driver);
+ il4965_rate_control_unregister();
+}
+
+module_exit(il4965_exit);
+module_init(il4965_init);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+module_param_named(debug, il_debug_level, uint, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "debug output mask");
+#endif
+
+module_param_named(swcrypto, il4965_mod_params.sw_crypto, int, S_IRUGO);
+MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
+module_param_named(queues_num, il4965_mod_params.num_of_queues, int, S_IRUGO);
+MODULE_PARM_DESC(queues_num, "number of hw queues.");
+module_param_named(11n_disable, il4965_mod_params.disable_11n, int, S_IRUGO);
+MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
+module_param_named(amsdu_size_8K, il4965_mod_params.amsdu_size_8K, int,
+ S_IRUGO);
+MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
+module_param_named(fw_restart, il4965_mod_params.restart_fw, int, S_IRUGO);
+MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c
new file mode 100644
index 0000000..467d0cb
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965-rs.c
@@ -0,0 +1,2860 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <net/mac80211.h>
+
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/delay.h>
+
+#include <linux/workqueue.h>
+
+#include "common.h"
+#include "4965.h"
+
+#define IL4965_RS_NAME "iwl-4965-rs"
+
+#define NUM_TRY_BEFORE_ANT_TOGGLE 1
+#define IL_NUMBER_TRY 1
+#define IL_HT_NUMBER_TRY 3
+
+#define RATE_MAX_WINDOW 62 /* # tx in history win */
+#define RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */
+#define RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */
+
+/* max allowed rate miss before sync LQ cmd */
+#define IL_MISSED_RATE_MAX 15
+/* max time to accum history 2 seconds */
+#define RATE_SCALE_FLUSH_INTVL (3*HZ)
+
+static u8 rs_ht_to_legacy[] = {
+ RATE_6M_IDX, RATE_6M_IDX,
+ RATE_6M_IDX, RATE_6M_IDX,
+ RATE_6M_IDX,
+ RATE_6M_IDX, RATE_9M_IDX,
+ RATE_12M_IDX, RATE_18M_IDX,
+ RATE_24M_IDX, RATE_36M_IDX,
+ RATE_48M_IDX, RATE_54M_IDX
+};
+
+static const u8 ant_toggle_lookup[] = {
+ /*ANT_NONE -> */ ANT_NONE,
+ /*ANT_A -> */ ANT_B,
+ /*ANT_B -> */ ANT_C,
+ /*ANT_AB -> */ ANT_BC,
+ /*ANT_C -> */ ANT_A,
+ /*ANT_AC -> */ ANT_AB,
+ /*ANT_BC -> */ ANT_AC,
+ /*ANT_ABC -> */ ANT_ABC,
+};
+
+#define IL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
+ [RATE_##r##M_IDX] = { RATE_##r##M_PLCP, \
+ RATE_SISO_##s##M_PLCP, \
+ RATE_MIMO2_##s##M_PLCP,\
+ RATE_##r##M_IEEE, \
+ RATE_##ip##M_IDX, \
+ RATE_##in##M_IDX, \
+ RATE_##rp##M_IDX, \
+ RATE_##rn##M_IDX, \
+ RATE_##pp##M_IDX, \
+ RATE_##np##M_IDX }
+
+/*
+ * Parameter order:
+ * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
+ *
+ * If there isn't a valid next or previous rate then INV is used which
+ * maps to RATE_INVALID
+ *
+ */
+const struct il_rate_info il_rates[RATE_COUNT] = {
+ IL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
+ IL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
+ IL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
+ IL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
+ IL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
+ IL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
+ IL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
+ IL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
+ IL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
+ IL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
+ IL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
+ IL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
+ IL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
+};
+
+static int
+il4965_hwrate_to_plcp_idx(u32 rate_n_flags)
+{
+ int idx = 0;
+
+ /* HT rate format */
+ if (rate_n_flags & RATE_MCS_HT_MSK) {
+ idx = (rate_n_flags & 0xff);
+
+ if (idx >= RATE_MIMO2_6M_PLCP)
+ idx = idx - RATE_MIMO2_6M_PLCP;
+
+ idx += IL_FIRST_OFDM_RATE;
+ /* skip 9M not supported in ht */
+ if (idx >= RATE_9M_IDX)
+ idx += 1;
+ if (idx >= IL_FIRST_OFDM_RATE && idx <= IL_LAST_OFDM_RATE)
+ return idx;
+
+ /* legacy rate format, search for match in table */
+ } else {
+ for (idx = 0; idx < ARRAY_SIZE(il_rates); idx++)
+ if (il_rates[idx].plcp == (rate_n_flags & 0xFF))
+ return idx;
+ }
+
+ return -1;
+}
+
+static void il4965_rs_rate_scale_perform(struct il_priv *il,
+ struct sk_buff *skb,
+ struct ieee80211_sta *sta,
+ struct il_lq_sta *lq_sta);
+static void il4965_rs_fill_link_cmd(struct il_priv *il,
+ struct il_lq_sta *lq_sta, u32 rate_n_flags);
+static void il4965_rs_stay_in_table(struct il_lq_sta *lq_sta,
+ bool force_search);
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static void il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta,
+ u32 *rate_n_flags, int idx);
+#else
+static void
+il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx)
+{
+}
+#endif
+
+/**
+ * The following tables contain the expected throughput metrics for all rates
+ *
+ * 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
+ *
+ * where invalid entries are zeros.
+ *
+ * CCK rates are only valid in legacy table and will only be used in G
+ * (2.4 GHz) band.
+ */
+
+static s32 expected_tpt_legacy[RATE_COUNT] = {
+ 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0
+};
+
+static s32 expected_tpt_siso20MHz[4][RATE_COUNT] = {
+ {0, 0, 0, 0, 42, 0, 76, 102, 124, 158, 183, 193, 202}, /* Norm */
+ {0, 0, 0, 0, 46, 0, 82, 110, 132, 167, 192, 202, 210}, /* SGI */
+ {0, 0, 0, 0, 48, 0, 93, 135, 176, 251, 319, 351, 381}, /* AGG */
+ {0, 0, 0, 0, 53, 0, 102, 149, 193, 275, 348, 381, 413}, /* AGG+SGI */
+};
+
+static s32 expected_tpt_siso40MHz[4][RATE_COUNT] = {
+ {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */
+ {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */
+ {0, 0, 0, 0, 96, 0, 182, 259, 328, 451, 553, 598, 640}, /* AGG */
+ {0, 0, 0, 0, 106, 0, 199, 282, 357, 487, 593, 640, 683}, /* AGG+SGI */
+};
+
+static s32 expected_tpt_mimo2_20MHz[4][RATE_COUNT] = {
+ {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250}, /* Norm */
+ {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256}, /* SGI */
+ {0, 0, 0, 0, 92, 0, 175, 250, 317, 436, 534, 578, 619}, /* AGG */
+ {0, 0, 0, 0, 102, 0, 192, 273, 344, 470, 573, 619, 660}, /* AGG+SGI */
+};
+
+static s32 expected_tpt_mimo2_40MHz[4][RATE_COUNT] = {
+ {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */
+ {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */
+ {0, 0, 0, 0, 180, 0, 327, 446, 545, 708, 828, 878, 922}, /* AGG */
+ {0, 0, 0, 0, 197, 0, 355, 481, 584, 752, 872, 922, 966}, /* AGG+SGI */
+};
+
+/* mbps, mcs */
+static const struct il_rate_mcs_info il_rate_mcs[RATE_COUNT] = {
+ {"1", "BPSK DSSS"},
+ {"2", "QPSK DSSS"},
+ {"5.5", "BPSK CCK"},
+ {"11", "QPSK CCK"},
+ {"6", "BPSK 1/2"},
+ {"9", "BPSK 1/2"},
+ {"12", "QPSK 1/2"},
+ {"18", "QPSK 3/4"},
+ {"24", "16QAM 1/2"},
+ {"36", "16QAM 3/4"},
+ {"48", "64QAM 2/3"},
+ {"54", "64QAM 3/4"},
+ {"60", "64QAM 5/6"},
+};
+
+#define MCS_IDX_PER_STREAM (8)
+
+static inline u8
+il4965_rs_extract_rate(u32 rate_n_flags)
+{
+ return (u8) (rate_n_flags & 0xFF);
+}
+
+static void
+il4965_rs_rate_scale_clear_win(struct il_rate_scale_data *win)
+{
+ win->data = 0;
+ win->success_counter = 0;
+ win->success_ratio = IL_INVALID_VALUE;
+ win->counter = 0;
+ win->average_tpt = IL_INVALID_VALUE;
+ win->stamp = 0;
+}
+
+static inline u8
+il4965_rs_is_valid_ant(u8 valid_antenna, u8 ant_type)
+{
+ return (ant_type & valid_antenna) == ant_type;
+}
+
+/*
+ * removes the old data from the stats. All data that is older than
+ * TID_MAX_TIME_DIFF, will be deleted.
+ */
+static void
+il4965_rs_tl_rm_old_stats(struct il_traffic_load *tl, u32 curr_time)
+{
+ /* The oldest age we want to keep */
+ u32 oldest_time = curr_time - TID_MAX_TIME_DIFF;
+
+ while (tl->queue_count && tl->time_stamp < oldest_time) {
+ tl->total -= tl->packet_count[tl->head];
+ tl->packet_count[tl->head] = 0;
+ tl->time_stamp += TID_QUEUE_CELL_SPACING;
+ tl->queue_count--;
+ tl->head++;
+ if (tl->head >= TID_QUEUE_MAX_SIZE)
+ tl->head = 0;
+ }
+}
+
+/*
+ * increment traffic load value for tid and also remove
+ * any old values if passed the certain time period
+ */
+static u8
+il4965_rs_tl_add_packet(struct il_lq_sta *lq_data, struct ieee80211_hdr *hdr)
+{
+ u32 curr_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 idx;
+ struct il_traffic_load *tl = NULL;
+ u8 tid;
+
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ u8 *qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & 0xf;
+ } else
+ return MAX_TID_COUNT;
+
+ if (unlikely(tid >= TID_MAX_LOAD_COUNT))
+ return MAX_TID_COUNT;
+
+ tl = &lq_data->load[tid];
+
+ curr_time -= curr_time % TID_ROUND_VALUE;
+
+ /* Happens only for the first packet. Initialize the data */
+ if (!(tl->queue_count)) {
+ tl->total = 1;
+ tl->time_stamp = curr_time;
+ tl->queue_count = 1;
+ tl->head = 0;
+ tl->packet_count[0] = 1;
+ return MAX_TID_COUNT;
+ }
+
+ time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
+ idx = time_diff / TID_QUEUE_CELL_SPACING;
+
+ /* The history is too long: remove data that is older than */
+ /* TID_MAX_TIME_DIFF */
+ if (idx >= TID_QUEUE_MAX_SIZE)
+ il4965_rs_tl_rm_old_stats(tl, curr_time);
+
+ idx = (tl->head + idx) % TID_QUEUE_MAX_SIZE;
+ tl->packet_count[idx] = tl->packet_count[idx] + 1;
+ tl->total = tl->total + 1;
+
+ if ((idx + 1) > tl->queue_count)
+ tl->queue_count = idx + 1;
+
+ return tid;
+}
+
+/*
+ get the traffic load value for tid
+*/
+static u32
+il4965_rs_tl_get_load(struct il_lq_sta *lq_data, u8 tid)
+{
+ u32 curr_time = jiffies_to_msecs(jiffies);
+ u32 time_diff;
+ s32 idx;
+ struct il_traffic_load *tl = NULL;
+
+ if (tid >= TID_MAX_LOAD_COUNT)
+ return 0;
+
+ tl = &(lq_data->load[tid]);
+
+ curr_time -= curr_time % TID_ROUND_VALUE;
+
+ if (!(tl->queue_count))
+ return 0;
+
+ time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
+ idx = time_diff / TID_QUEUE_CELL_SPACING;
+
+ /* The history is too long: remove data that is older than */
+ /* TID_MAX_TIME_DIFF */
+ if (idx >= TID_QUEUE_MAX_SIZE)
+ il4965_rs_tl_rm_old_stats(tl, curr_time);
+
+ return tl->total;
+}
+
+static int
+il4965_rs_tl_turn_on_agg_for_tid(struct il_priv *il, struct il_lq_sta *lq_data,
+ u8 tid, struct ieee80211_sta *sta)
+{
+ int ret = -EAGAIN;
+ u32 load;
+
+ load = il4965_rs_tl_get_load(lq_data, tid);
+
+ if (load > IL_AGG_LOAD_THRESHOLD) {
+ D_HT("Starting Tx agg: STA: %pM tid: %d\n", sta->addr, tid);
+ ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
+ if (ret == -EAGAIN) {
+ /*
+ * driver and mac80211 is out of sync
+ * this might be cause by reloading firmware
+ * stop the tx ba session here
+ */
+ IL_ERR("Fail start Tx agg on tid: %d\n", tid);
+ ieee80211_stop_tx_ba_session(sta, tid);
+ }
+ } else
+ D_HT("Aggregation not enabled for tid %d because load = %u\n",
+ tid, load);
+
+ return ret;
+}
+
+static void
+il4965_rs_tl_turn_on_agg(struct il_priv *il, u8 tid, struct il_lq_sta *lq_data,
+ struct ieee80211_sta *sta)
+{
+ if (tid < TID_MAX_LOAD_COUNT)
+ il4965_rs_tl_turn_on_agg_for_tid(il, lq_data, tid, sta);
+ else
+ IL_ERR("tid exceeds max load count: %d/%d\n", tid,
+ TID_MAX_LOAD_COUNT);
+}
+
+static inline int
+il4965_get_il4965_num_of_ant_from_rate(u32 rate_n_flags)
+{
+ return !!(rate_n_flags & RATE_MCS_ANT_A_MSK) +
+ !!(rate_n_flags & RATE_MCS_ANT_B_MSK) +
+ !!(rate_n_flags & RATE_MCS_ANT_C_MSK);
+}
+
+/*
+ * Static function to get the expected throughput from an il_scale_tbl_info
+ * that wraps a NULL pointer check
+ */
+static s32
+il4965_get_expected_tpt(struct il_scale_tbl_info *tbl, int rs_idx)
+{
+ if (tbl->expected_tpt)
+ return tbl->expected_tpt[rs_idx];
+ return 0;
+}
+
+/**
+ * il4965_rs_collect_tx_data - Update the success/failure sliding win
+ *
+ * We keep a sliding win of the last 62 packets transmitted
+ * at this rate. win->data contains the bitmask of successful
+ * packets.
+ */
+static int
+il4965_rs_collect_tx_data(struct il_scale_tbl_info *tbl, int scale_idx,
+ int attempts, int successes)
+{
+ struct il_rate_scale_data *win = NULL;
+ static const u64 mask = (((u64) 1) << (RATE_MAX_WINDOW - 1));
+ s32 fail_count, tpt;
+
+ if (scale_idx < 0 || scale_idx >= RATE_COUNT)
+ return -EINVAL;
+
+ /* Select win for current tx bit rate */
+ win = &(tbl->win[scale_idx]);
+
+ /* Get expected throughput */
+ tpt = il4965_get_expected_tpt(tbl, scale_idx);
+
+ /*
+ * Keep track of only the latest 62 tx frame attempts in this rate's
+ * history win; anything older isn't really relevant any more.
+ * If we have filled up the sliding win, drop the oldest attempt;
+ * if the oldest attempt (highest bit in bitmap) shows "success",
+ * subtract "1" from the success counter (this is the main reason
+ * we keep these bitmaps!).
+ */
+ while (attempts > 0) {
+ if (win->counter >= RATE_MAX_WINDOW) {
+
+ /* remove earliest */
+ win->counter = RATE_MAX_WINDOW - 1;
+
+ if (win->data & mask) {
+ win->data &= ~mask;
+ win->success_counter--;
+ }
+ }
+
+ /* Increment frames-attempted counter */
+ win->counter++;
+
+ /* Shift bitmap by one frame to throw away oldest history */
+ win->data <<= 1;
+
+ /* Mark the most recent #successes attempts as successful */
+ if (successes > 0) {
+ win->success_counter++;
+ win->data |= 0x1;
+ successes--;
+ }
+
+ attempts--;
+ }
+
+ /* Calculate current success ratio, avoid divide-by-0! */
+ if (win->counter > 0)
+ win->success_ratio =
+ 128 * (100 * win->success_counter) / win->counter;
+ else
+ win->success_ratio = IL_INVALID_VALUE;
+
+ fail_count = win->counter - win->success_counter;
+
+ /* Calculate average throughput, if we have enough history. */
+ if (fail_count >= RATE_MIN_FAILURE_TH ||
+ win->success_counter >= RATE_MIN_SUCCESS_TH)
+ win->average_tpt = (win->success_ratio * tpt + 64) / 128;
+ else
+ win->average_tpt = IL_INVALID_VALUE;
+
+ /* Tag this win as having been updated */
+ win->stamp = jiffies;
+
+ return 0;
+}
+
+/*
+ * Fill uCode API rate_n_flags field, based on "search" or "active" table.
+ */
+static u32
+il4965_rate_n_flags_from_tbl(struct il_priv *il, struct il_scale_tbl_info *tbl,
+ int idx, u8 use_green)
+{
+ u32 rate_n_flags = 0;
+
+ if (is_legacy(tbl->lq_type)) {
+ rate_n_flags = il_rates[idx].plcp;
+ if (idx >= IL_FIRST_CCK_RATE && idx <= IL_LAST_CCK_RATE)
+ rate_n_flags |= RATE_MCS_CCK_MSK;
+
+ } else if (is_Ht(tbl->lq_type)) {
+ if (idx > IL_LAST_OFDM_RATE) {
+ IL_ERR("Invalid HT rate idx %d\n", idx);
+ idx = IL_LAST_OFDM_RATE;
+ }
+ rate_n_flags = RATE_MCS_HT_MSK;
+
+ if (is_siso(tbl->lq_type))
+ rate_n_flags |= il_rates[idx].plcp_siso;
+ else
+ rate_n_flags |= il_rates[idx].plcp_mimo2;
+ } else {
+ IL_ERR("Invalid tbl->lq_type %d\n", tbl->lq_type);
+ }
+
+ rate_n_flags |=
+ ((tbl->ant_type << RATE_MCS_ANT_POS) & RATE_MCS_ANT_ABC_MSK);
+
+ if (is_Ht(tbl->lq_type)) {
+ if (tbl->is_ht40) {
+ if (tbl->is_dup)
+ rate_n_flags |= RATE_MCS_DUP_MSK;
+ else
+ rate_n_flags |= RATE_MCS_HT40_MSK;
+ }
+ if (tbl->is_SGI)
+ rate_n_flags |= RATE_MCS_SGI_MSK;
+
+ if (use_green) {
+ rate_n_flags |= RATE_MCS_GF_MSK;
+ if (is_siso(tbl->lq_type) && tbl->is_SGI) {
+ rate_n_flags &= ~RATE_MCS_SGI_MSK;
+ IL_ERR("GF was set with SGI:SISO\n");
+ }
+ }
+ }
+ return rate_n_flags;
+}
+
+/*
+ * Interpret uCode API's rate_n_flags format,
+ * fill "search" or "active" tx mode table.
+ */
+static int
+il4965_rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
+ enum ieee80211_band band,
+ struct il_scale_tbl_info *tbl, int *rate_idx)
+{
+ u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK);
+ u8 il4965_num_of_ant =
+ il4965_get_il4965_num_of_ant_from_rate(rate_n_flags);
+ u8 mcs;
+
+ memset(tbl, 0, sizeof(struct il_scale_tbl_info));
+ *rate_idx = il4965_hwrate_to_plcp_idx(rate_n_flags);
+
+ if (*rate_idx == RATE_INVALID) {
+ *rate_idx = -1;
+ return -EINVAL;
+ }
+ tbl->is_SGI = 0; /* default legacy setup */
+ tbl->is_ht40 = 0;
+ tbl->is_dup = 0;
+ tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
+ tbl->lq_type = LQ_NONE;
+ tbl->max_search = IL_MAX_SEARCH;
+
+ /* legacy rate format */
+ if (!(rate_n_flags & RATE_MCS_HT_MSK)) {
+ if (il4965_num_of_ant == 1) {
+ if (band == IEEE80211_BAND_5GHZ)
+ tbl->lq_type = LQ_A;
+ else
+ tbl->lq_type = LQ_G;
+ }
+ /* HT rate format */
+ } else {
+ if (rate_n_flags & RATE_MCS_SGI_MSK)
+ tbl->is_SGI = 1;
+
+ if ((rate_n_flags & RATE_MCS_HT40_MSK) ||
+ (rate_n_flags & RATE_MCS_DUP_MSK))
+ tbl->is_ht40 = 1;
+
+ if (rate_n_flags & RATE_MCS_DUP_MSK)
+ tbl->is_dup = 1;
+
+ mcs = il4965_rs_extract_rate(rate_n_flags);
+
+ /* SISO */
+ if (mcs <= RATE_SISO_60M_PLCP) {
+ if (il4965_num_of_ant == 1)
+ tbl->lq_type = LQ_SISO; /*else NONE */
+ /* MIMO2 */
+ } else {
+ if (il4965_num_of_ant == 2)
+ tbl->lq_type = LQ_MIMO2;
+ }
+ }
+ return 0;
+}
+
+/* switch to another antenna/antennas and return 1 */
+/* if no other valid antenna found, return 0 */
+static int
+il4965_rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
+ struct il_scale_tbl_info *tbl)
+{
+ u8 new_ant_type;
+
+ if (!tbl->ant_type || tbl->ant_type > ANT_ABC)
+ return 0;
+
+ if (!il4965_rs_is_valid_ant(valid_ant, tbl->ant_type))
+ return 0;
+
+ new_ant_type = ant_toggle_lookup[tbl->ant_type];
+
+ while (new_ant_type != tbl->ant_type &&
+ !il4965_rs_is_valid_ant(valid_ant, new_ant_type))
+ new_ant_type = ant_toggle_lookup[new_ant_type];
+
+ if (new_ant_type == tbl->ant_type)
+ return 0;
+
+ tbl->ant_type = new_ant_type;
+ *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK;
+ *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS;
+ return 1;
+}
+
+/**
+ * Green-field mode is valid if the station supports it and
+ * there are no non-GF stations present in the BSS.
+ */
+static bool
+il4965_rs_use_green(struct ieee80211_sta *sta)
+{
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
+ !(ctx->ht.non_gf_sta_present);
+}
+
+/**
+ * il4965_rs_get_supported_rates - get the available rates
+ *
+ * if management frame or broadcast frame only return
+ * basic available rates.
+ *
+ */
+static u16
+il4965_rs_get_supported_rates(struct il_lq_sta *lq_sta,
+ struct ieee80211_hdr *hdr,
+ enum il_table_type rate_type)
+{
+ if (is_legacy(rate_type)) {
+ return lq_sta->active_legacy_rate;
+ } else {
+ if (is_siso(rate_type))
+ return lq_sta->active_siso_rate;
+ else
+ return lq_sta->active_mimo2_rate;
+ }
+}
+
+static u16
+il4965_rs_get_adjacent_rate(struct il_priv *il, u8 idx, u16 rate_mask,
+ int rate_type)
+{
+ u8 high = RATE_INVALID;
+ u8 low = RATE_INVALID;
+
+ /* 802.11A or ht walks to the next literal adjacent rate in
+ * the rate table */
+ if (is_a_band(rate_type) || !is_legacy(rate_type)) {
+ int i;
+ u32 mask;
+
+ /* Find the previous rate that is in the rate mask */
+ i = idx - 1;
+ for (mask = (1 << i); i >= 0; i--, mask >>= 1) {
+ if (rate_mask & mask) {
+ low = i;
+ break;
+ }
+ }
+
+ /* Find the next rate that is in the rate mask */
+ i = idx + 1;
+ for (mask = (1 << i); i < RATE_COUNT; i++, mask <<= 1) {
+ if (rate_mask & mask) {
+ high = i;
+ break;
+ }
+ }
+
+ return (high << 8) | low;
+ }
+
+ low = idx;
+ while (low != RATE_INVALID) {
+ low = il_rates[low].prev_rs;
+ if (low == RATE_INVALID)
+ break;
+ if (rate_mask & (1 << low))
+ break;
+ D_RATE("Skipping masked lower rate: %d\n", low);
+ }
+
+ high = idx;
+ while (high != RATE_INVALID) {
+ high = il_rates[high].next_rs;
+ if (high == RATE_INVALID)
+ break;
+ if (rate_mask & (1 << high))
+ break;
+ D_RATE("Skipping masked higher rate: %d\n", high);
+ }
+
+ return (high << 8) | low;
+}
+
+static u32
+il4965_rs_get_lower_rate(struct il_lq_sta *lq_sta,
+ struct il_scale_tbl_info *tbl, u8 scale_idx,
+ u8 ht_possible)
+{
+ s32 low;
+ u16 rate_mask;
+ u16 high_low;
+ u8 switch_to_legacy = 0;
+ u8 is_green = lq_sta->is_green;
+ struct il_priv *il = lq_sta->drv;
+
+ /* check if we need to switch from HT to legacy rates.
+ * assumption is that mandatory rates (1Mbps or 6Mbps)
+ * are always supported (spec demand) */
+ if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_idx)) {
+ switch_to_legacy = 1;
+ scale_idx = rs_ht_to_legacy[scale_idx];
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
+ tbl->lq_type = LQ_A;
+ else
+ tbl->lq_type = LQ_G;
+
+ if (il4965_num_of_ant(tbl->ant_type) > 1)
+ tbl->ant_type =
+ il4965_first_antenna(il->hw_params.valid_tx_ant);
+
+ tbl->is_ht40 = 0;
+ tbl->is_SGI = 0;
+ tbl->max_search = IL_MAX_SEARCH;
+ }
+
+ rate_mask = il4965_rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
+
+ /* Mask with station rate restriction */
+ if (is_legacy(tbl->lq_type)) {
+ /* supp_rates has no CCK bits in A mode */
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
+ rate_mask =
+ (u16) (rate_mask &
+ (lq_sta->supp_rates << IL_FIRST_OFDM_RATE));
+ else
+ rate_mask = (u16) (rate_mask & lq_sta->supp_rates);
+ }
+
+ /* If we switched from HT to legacy, check current rate */
+ if (switch_to_legacy && (rate_mask & (1 << scale_idx))) {
+ low = scale_idx;
+ goto out;
+ }
+
+ high_low =
+ il4965_rs_get_adjacent_rate(lq_sta->drv, scale_idx, rate_mask,
+ tbl->lq_type);
+ low = high_low & 0xff;
+
+ if (low == RATE_INVALID)
+ low = scale_idx;
+
+out:
+ return il4965_rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green);
+}
+
+/*
+ * Simple function to compare two rate scale table types
+ */
+static bool
+il4965_table_type_matches(struct il_scale_tbl_info *a,
+ struct il_scale_tbl_info *b)
+{
+ return (a->lq_type == b->lq_type && a->ant_type == b->ant_type &&
+ a->is_SGI == b->is_SGI);
+}
+
+/*
+ * mac80211 sends us Tx status
+ */
+static void
+il4965_rs_tx_status(void *il_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *il_sta,
+ struct sk_buff *skb)
+{
+ int legacy_success;
+ int retries;
+ int rs_idx, mac_idx, i;
+ struct il_lq_sta *lq_sta = il_sta;
+ struct il_link_quality_cmd *table;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ struct il_priv *il = (struct il_priv *)il_r;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ enum mac80211_rate_control_flags mac_flags;
+ u32 tx_rate;
+ struct il_scale_tbl_info tbl_type;
+ struct il_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ D_RATE("get frame ack response, update rate scale win\n");
+
+ /* Treat uninitialized rate scaling data same as non-existing. */
+ if (!lq_sta) {
+ D_RATE("Station rate scaling not created yet.\n");
+ return;
+ } else if (!lq_sta->drv) {
+ D_RATE("Rate scaling not initialized yet.\n");
+ return;
+ }
+
+ if (!ieee80211_is_data(hdr->frame_control) ||
+ (info->flags & IEEE80211_TX_CTL_NO_ACK))
+ return;
+
+ /* This packet was aggregated but doesn't carry status info */
+ if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
+ !(info->flags & IEEE80211_TX_STAT_AMPDU))
+ return;
+
+ /*
+ * Ignore this Tx frame response if its initial rate doesn't match
+ * that of latest Link Quality command. There may be stragglers
+ * from a previous Link Quality command, but we're no longer interested
+ * in those; they're either from the "active" mode while we're trying
+ * to check "search" mode, or a prior "search" mode after we've moved
+ * to a new "search" mode (which might become the new "active" mode).
+ */
+ table = &lq_sta->lq;
+ tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
+ il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band, &tbl_type, &rs_idx);
+ if (il->band == IEEE80211_BAND_5GHZ)
+ rs_idx -= IL_FIRST_OFDM_RATE;
+ mac_flags = info->status.rates[0].flags;
+ mac_idx = info->status.rates[0].idx;
+ /* For HT packets, map MCS to PLCP */
+ if (mac_flags & IEEE80211_TX_RC_MCS) {
+ mac_idx &= RATE_MCS_CODE_MSK; /* Remove # of streams */
+ if (mac_idx >= (RATE_9M_IDX - IL_FIRST_OFDM_RATE))
+ mac_idx++;
+ /*
+ * mac80211 HT idx is always zero-idxed; we need to move
+ * HT OFDM rates after CCK rates in 2.4 GHz band
+ */
+ if (il->band == IEEE80211_BAND_2GHZ)
+ mac_idx += IL_FIRST_OFDM_RATE;
+ }
+ /* Here we actually compare this rate to the latest LQ command */
+ if (mac_idx < 0 ||
+ tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI) ||
+ tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ||
+ tbl_type.is_dup != !!(mac_flags & IEEE80211_TX_RC_DUP_DATA) ||
+ tbl_type.ant_type != info->antenna_sel_tx ||
+ !!(tx_rate & RATE_MCS_HT_MSK) != !!(mac_flags & IEEE80211_TX_RC_MCS)
+ || !!(tx_rate & RATE_MCS_GF_MSK) !=
+ !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD) || rs_idx != mac_idx) {
+ D_RATE("initial rate %d does not match %d (0x%x)\n", mac_idx,
+ rs_idx, tx_rate);
+ /*
+ * Since rates mis-match, the last LQ command may have failed.
+ * After IL_MISSED_RATE_MAX mis-matches, resync the uCode with
+ * ... driver.
+ */
+ lq_sta->missed_rate_counter++;
+ if (lq_sta->missed_rate_counter > IL_MISSED_RATE_MAX) {
+ lq_sta->missed_rate_counter = 0;
+ il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false);
+ }
+ /* Regardless, ignore this status info for outdated rate */
+ return;
+ } else
+ /* Rate did match, so reset the missed_rate_counter */
+ lq_sta->missed_rate_counter = 0;
+
+ /* Figure out if rate scale algorithm is in active or search table */
+ if (il4965_table_type_matches
+ (&tbl_type, &(lq_sta->lq_info[lq_sta->active_tbl]))) {
+ curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
+ } else
+ if (il4965_table_type_matches
+ (&tbl_type, &lq_sta->lq_info[1 - lq_sta->active_tbl])) {
+ curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
+ other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ } else {
+ D_RATE("Neither active nor search matches tx rate\n");
+ tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ D_RATE("active- lq:%x, ant:%x, SGI:%d\n", tmp_tbl->lq_type,
+ tmp_tbl->ant_type, tmp_tbl->is_SGI);
+ tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
+ D_RATE("search- lq:%x, ant:%x, SGI:%d\n", tmp_tbl->lq_type,
+ tmp_tbl->ant_type, tmp_tbl->is_SGI);
+ D_RATE("actual- lq:%x, ant:%x, SGI:%d\n", tbl_type.lq_type,
+ tbl_type.ant_type, tbl_type.is_SGI);
+ /*
+ * no matching table found, let's by-pass the data collection
+ * and continue to perform rate scale to find the rate table
+ */
+ il4965_rs_stay_in_table(lq_sta, true);
+ goto done;
+ }
+
+ /*
+ * Updating the frame history depends on whether packets were
+ * aggregated.
+ *
+ * For aggregation, all packets were transmitted at the same rate, the
+ * first idx into rate scale table.
+ */
+ if (info->flags & IEEE80211_TX_STAT_AMPDU) {
+ tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
+ il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band, &tbl_type,
+ &rs_idx);
+ il4965_rs_collect_tx_data(curr_tbl, rs_idx,
+ info->status.ampdu_len,
+ info->status.ampdu_ack_len);
+
+ /* Update success/fail counts if not searching for new mode */
+ if (lq_sta->stay_in_tbl) {
+ lq_sta->total_success += info->status.ampdu_ack_len;
+ lq_sta->total_failed +=
+ (info->status.ampdu_len -
+ info->status.ampdu_ack_len);
+ }
+ } else {
+ /*
+ * For legacy, update frame history with for each Tx retry.
+ */
+ retries = info->status.rates[0].count - 1;
+ /* HW doesn't send more than 15 retries */
+ retries = min(retries, 15);
+
+ /* The last transmission may have been successful */
+ legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK);
+ /* Collect data for each rate used during failed TX attempts */
+ for (i = 0; i <= retries; ++i) {
+ tx_rate = le32_to_cpu(table->rs_table[i].rate_n_flags);
+ il4965_rs_get_tbl_info_from_mcs(tx_rate, il->band,
+ &tbl_type, &rs_idx);
+ /*
+ * Only collect stats if retried rate is in the same RS
+ * table as active/search.
+ */
+ if (il4965_table_type_matches(&tbl_type, curr_tbl))
+ tmp_tbl = curr_tbl;
+ else if (il4965_table_type_matches
+ (&tbl_type, other_tbl))
+ tmp_tbl = other_tbl;
+ else
+ continue;
+ il4965_rs_collect_tx_data(tmp_tbl, rs_idx, 1,
+ i <
+ retries ? 0 : legacy_success);
+ }
+
+ /* Update success/fail counts if not searching for new mode */
+ if (lq_sta->stay_in_tbl) {
+ lq_sta->total_success += legacy_success;
+ lq_sta->total_failed += retries + (1 - legacy_success);
+ }
+ }
+ /* The last TX rate is cached in lq_sta; it's set in if/else above */
+ lq_sta->last_rate_n_flags = tx_rate;
+done:
+ /* See if there's a better rate or modulation mode to try. */
+ if (sta->supp_rates[sband->band])
+ il4965_rs_rate_scale_perform(il, skb, sta, lq_sta);
+}
+
+/*
+ * Begin a period of staying with a selected modulation mode.
+ * Set "stay_in_tbl" flag to prevent any mode switches.
+ * Set frame tx success limits according to legacy vs. high-throughput,
+ * and reset overall (spanning all rates) tx success history stats.
+ * These control how long we stay using same modulation mode before
+ * searching for a new mode.
+ */
+static void
+il4965_rs_set_stay_in_table(struct il_priv *il, u8 is_legacy,
+ struct il_lq_sta *lq_sta)
+{
+ D_RATE("we are staying in the same table\n");
+ lq_sta->stay_in_tbl = 1; /* only place this gets set */
+ if (is_legacy) {
+ lq_sta->table_count_limit = IL_LEGACY_TBL_COUNT;
+ lq_sta->max_failure_limit = IL_LEGACY_FAILURE_LIMIT;
+ lq_sta->max_success_limit = IL_LEGACY_SUCCESS_LIMIT;
+ } else {
+ lq_sta->table_count_limit = IL_NONE_LEGACY_TBL_COUNT;
+ lq_sta->max_failure_limit = IL_NONE_LEGACY_FAILURE_LIMIT;
+ lq_sta->max_success_limit = IL_NONE_LEGACY_SUCCESS_LIMIT;
+ }
+ lq_sta->table_count = 0;
+ lq_sta->total_failed = 0;
+ lq_sta->total_success = 0;
+ lq_sta->flush_timer = jiffies;
+ lq_sta->action_counter = 0;
+}
+
+/*
+ * Find correct throughput table for given mode of modulation
+ */
+static void
+il4965_rs_set_expected_tpt_table(struct il_lq_sta *lq_sta,
+ struct il_scale_tbl_info *tbl)
+{
+ /* Used to choose among HT tables */
+ s32(*ht_tbl_pointer)[RATE_COUNT];
+
+ /* Check for invalid LQ type */
+ if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) {
+ tbl->expected_tpt = expected_tpt_legacy;
+ return;
+ }
+
+ /* Legacy rates have only one table */
+ if (is_legacy(tbl->lq_type)) {
+ tbl->expected_tpt = expected_tpt_legacy;
+ return;
+ }
+
+ /* Choose among many HT tables depending on number of streams
+ * (SISO/MIMO2), channel width (20/40), SGI, and aggregation
+ * status */
+ if (is_siso(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup))
+ ht_tbl_pointer = expected_tpt_siso20MHz;
+ else if (is_siso(tbl->lq_type))
+ ht_tbl_pointer = expected_tpt_siso40MHz;
+ else if (is_mimo2(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup))
+ ht_tbl_pointer = expected_tpt_mimo2_20MHz;
+ else /* if (is_mimo2(tbl->lq_type)) <-- must be true */
+ ht_tbl_pointer = expected_tpt_mimo2_40MHz;
+
+ if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */
+ tbl->expected_tpt = ht_tbl_pointer[0];
+ else if (tbl->is_SGI && !lq_sta->is_agg) /* SGI */
+ tbl->expected_tpt = ht_tbl_pointer[1];
+ else if (!tbl->is_SGI && lq_sta->is_agg) /* AGG */
+ tbl->expected_tpt = ht_tbl_pointer[2];
+ else /* AGG+SGI */
+ tbl->expected_tpt = ht_tbl_pointer[3];
+}
+
+/*
+ * Find starting rate for new "search" high-throughput mode of modulation.
+ * Goal is to find lowest expected rate (under perfect conditions) that is
+ * above the current measured throughput of "active" mode, to give new mode
+ * a fair chance to prove itself without too many challenges.
+ *
+ * This gets called when transitioning to more aggressive modulation
+ * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive
+ * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need
+ * to decrease to match "active" throughput. When moving from MIMO to SISO,
+ * bit rate will typically need to increase, but not if performance was bad.
+ */
+static s32
+il4965_rs_get_best_rate(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct il_scale_tbl_info *tbl, /* "search" */
+ u16 rate_mask, s8 idx)
+{
+ /* "active" values */
+ struct il_scale_tbl_info *active_tbl =
+ &(lq_sta->lq_info[lq_sta->active_tbl]);
+ s32 active_sr = active_tbl->win[idx].success_ratio;
+ s32 active_tpt = active_tbl->expected_tpt[idx];
+
+ /* expected "search" throughput */
+ s32 *tpt_tbl = tbl->expected_tpt;
+
+ s32 new_rate, high, low, start_hi;
+ u16 high_low;
+ s8 rate = idx;
+
+ new_rate = high = low = start_hi = RATE_INVALID;
+
+ for (;;) {
+ high_low =
+ il4965_rs_get_adjacent_rate(il, rate, rate_mask,
+ tbl->lq_type);
+
+ low = high_low & 0xff;
+ high = (high_low >> 8) & 0xff;
+
+ /*
+ * Lower the "search" bit rate, to give new "search" mode
+ * approximately the same throughput as "active" if:
+ *
+ * 1) "Active" mode has been working modestly well (but not
+ * great), and expected "search" throughput (under perfect
+ * conditions) at candidate rate is above the actual
+ * measured "active" throughput (but less than expected
+ * "active" throughput under perfect conditions).
+ * OR
+ * 2) "Active" mode has been working perfectly or very well
+ * and expected "search" throughput (under perfect
+ * conditions) at candidate rate is above expected
+ * "active" throughput (under perfect conditions).
+ */
+ if ((100 * tpt_tbl[rate] > lq_sta->last_tpt &&
+ (active_sr > RATE_DECREASE_TH && active_sr <= RATE_HIGH_TH
+ && tpt_tbl[rate] <= active_tpt)) ||
+ (active_sr >= RATE_SCALE_SWITCH &&
+ tpt_tbl[rate] > active_tpt)) {
+
+ /* (2nd or later pass)
+ * If we've already tried to raise the rate, and are
+ * now trying to lower it, use the higher rate. */
+ if (start_hi != RATE_INVALID) {
+ new_rate = start_hi;
+ break;
+ }
+
+ new_rate = rate;
+
+ /* Loop again with lower rate */
+ if (low != RATE_INVALID)
+ rate = low;
+
+ /* Lower rate not available, use the original */
+ else
+ break;
+
+ /* Else try to raise the "search" rate to match "active" */
+ } else {
+ /* (2nd or later pass)
+ * If we've already tried to lower the rate, and are
+ * now trying to raise it, use the lower rate. */
+ if (new_rate != RATE_INVALID)
+ break;
+
+ /* Loop again with higher rate */
+ else if (high != RATE_INVALID) {
+ start_hi = high;
+ rate = high;
+
+ /* Higher rate not available, use the original */
+ } else {
+ new_rate = rate;
+ break;
+ }
+ }
+ }
+
+ return new_rate;
+}
+
+/*
+ * Set up search table for MIMO2
+ */
+static int
+il4965_rs_switch_to_mimo2(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct ieee80211_sta *sta,
+ struct il_scale_tbl_info *tbl, int idx)
+{
+ u16 rate_mask;
+ s32 rate;
+ s8 is_green = lq_sta->is_green;
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
+ return -1;
+
+ if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2) ==
+ WLAN_HT_CAP_SM_PS_STATIC)
+ return -1;
+
+ /* Need both Tx chains/antennas to support MIMO */
+ if (il->hw_params.tx_chains_num < 2)
+ return -1;
+
+ D_RATE("LQ: try to switch to MIMO2\n");
+
+ tbl->lq_type = LQ_MIMO2;
+ tbl->is_dup = lq_sta->is_dup;
+ tbl->action = 0;
+ tbl->max_search = IL_MAX_SEARCH;
+ rate_mask = lq_sta->active_mimo2_rate;
+
+ if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap))
+ tbl->is_ht40 = 1;
+ else
+ tbl->is_ht40 = 0;
+
+ il4965_rs_set_expected_tpt_table(lq_sta, tbl);
+
+ rate = il4965_rs_get_best_rate(il, lq_sta, tbl, rate_mask, idx);
+
+ D_RATE("LQ: MIMO2 best rate %d mask %X\n", rate, rate_mask);
+ if (rate == RATE_INVALID || !((1 << rate) & rate_mask)) {
+ D_RATE("Can't switch with idx %d rate mask %x\n", rate,
+ rate_mask);
+ return -1;
+ }
+ tbl->current_rate =
+ il4965_rate_n_flags_from_tbl(il, tbl, rate, is_green);
+
+ D_RATE("LQ: Switch to new mcs %X idx is green %X\n", tbl->current_rate,
+ is_green);
+ return 0;
+}
+
+/*
+ * Set up search table for SISO
+ */
+static int
+il4965_rs_switch_to_siso(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct ieee80211_conf *conf, struct ieee80211_sta *sta,
+ struct il_scale_tbl_info *tbl, int idx)
+{
+ u16 rate_mask;
+ u8 is_green = lq_sta->is_green;
+ s32 rate;
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
+ return -1;
+
+ D_RATE("LQ: try to switch to SISO\n");
+
+ tbl->is_dup = lq_sta->is_dup;
+ tbl->lq_type = LQ_SISO;
+ tbl->action = 0;
+ tbl->max_search = IL_MAX_SEARCH;
+ rate_mask = lq_sta->active_siso_rate;
+
+ if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap))
+ tbl->is_ht40 = 1;
+ else
+ tbl->is_ht40 = 0;
+
+ if (is_green)
+ tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield */
+
+ il4965_rs_set_expected_tpt_table(lq_sta, tbl);
+ rate = il4965_rs_get_best_rate(il, lq_sta, tbl, rate_mask, idx);
+
+ D_RATE("LQ: get best rate %d mask %X\n", rate, rate_mask);
+ if (rate == RATE_INVALID || !((1 << rate) & rate_mask)) {
+ D_RATE("can not switch with idx %d rate mask %x\n", rate,
+ rate_mask);
+ return -1;
+ }
+ tbl->current_rate =
+ il4965_rate_n_flags_from_tbl(il, tbl, rate, is_green);
+ D_RATE("LQ: Switch to new mcs %X idx is green %X\n", tbl->current_rate,
+ is_green);
+ return 0;
+}
+
+/*
+ * Try to switch to new modulation mode from legacy
+ */
+static int
+il4965_rs_move_legacy_other(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct ieee80211_sta *sta, int idx)
+{
+ struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ struct il_scale_tbl_info *search_tbl =
+ &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+ struct il_rate_scale_data *win = &(tbl->win[idx]);
+ u32 sz =
+ (sizeof(struct il_scale_tbl_info) -
+ (sizeof(struct il_rate_scale_data) * RATE_COUNT));
+ u8 start_action;
+ u8 valid_tx_ant = il->hw_params.valid_tx_ant;
+ u8 tx_chains_num = il->hw_params.tx_chains_num;
+ int ret = 0;
+ u8 update_search_tbl_counter = 0;
+
+ tbl->action = IL_LEGACY_SWITCH_SISO;
+
+ start_action = tbl->action;
+ for (;;) {
+ lq_sta->action_counter++;
+ switch (tbl->action) {
+ case IL_LEGACY_SWITCH_ANTENNA1:
+ case IL_LEGACY_SWITCH_ANTENNA2:
+ D_RATE("LQ: Legacy toggle Antenna\n");
+
+ if ((tbl->action == IL_LEGACY_SWITCH_ANTENNA1 &&
+ tx_chains_num <= 1) ||
+ (tbl->action == IL_LEGACY_SWITCH_ANTENNA2 &&
+ tx_chains_num <= 2))
+ break;
+
+ /* Don't change antenna if success has been great */
+ if (win->success_ratio >= IL_RS_GOOD_RATIO)
+ break;
+
+ /* Set up search table to try other antenna */
+ memcpy(search_tbl, tbl, sz);
+
+ if (il4965_rs_toggle_antenna
+ (valid_tx_ant, &search_tbl->current_rate,
+ search_tbl)) {
+ update_search_tbl_counter = 1;
+ il4965_rs_set_expected_tpt_table(lq_sta,
+ search_tbl);
+ goto out;
+ }
+ break;
+ case IL_LEGACY_SWITCH_SISO:
+ D_RATE("LQ: Legacy switch to SISO\n");
+
+ /* Set up search table to try SISO */
+ memcpy(search_tbl, tbl, sz);
+ search_tbl->is_SGI = 0;
+ ret =
+ il4965_rs_switch_to_siso(il, lq_sta, conf, sta,
+ search_tbl, idx);
+ if (!ret) {
+ lq_sta->action_counter = 0;
+ goto out;
+ }
+
+ break;
+ case IL_LEGACY_SWITCH_MIMO2_AB:
+ case IL_LEGACY_SWITCH_MIMO2_AC:
+ case IL_LEGACY_SWITCH_MIMO2_BC:
+ D_RATE("LQ: Legacy switch to MIMO2\n");
+
+ /* Set up search table to try MIMO */
+ memcpy(search_tbl, tbl, sz);
+ search_tbl->is_SGI = 0;
+
+ if (tbl->action == IL_LEGACY_SWITCH_MIMO2_AB)
+ search_tbl->ant_type = ANT_AB;
+ else if (tbl->action == IL_LEGACY_SWITCH_MIMO2_AC)
+ search_tbl->ant_type = ANT_AC;
+ else
+ search_tbl->ant_type = ANT_BC;
+
+ if (!il4965_rs_is_valid_ant
+ (valid_tx_ant, search_tbl->ant_type))
+ break;
+
+ ret =
+ il4965_rs_switch_to_mimo2(il, lq_sta, conf, sta,
+ search_tbl, idx);
+ if (!ret) {
+ lq_sta->action_counter = 0;
+ goto out;
+ }
+ break;
+ }
+ tbl->action++;
+ if (tbl->action > IL_LEGACY_SWITCH_MIMO2_BC)
+ tbl->action = IL_LEGACY_SWITCH_ANTENNA1;
+
+ if (tbl->action == start_action)
+ break;
+
+ }
+ search_tbl->lq_type = LQ_NONE;
+ return 0;
+
+out:
+ lq_sta->search_better_tbl = 1;
+ tbl->action++;
+ if (tbl->action > IL_LEGACY_SWITCH_MIMO2_BC)
+ tbl->action = IL_LEGACY_SWITCH_ANTENNA1;
+ if (update_search_tbl_counter)
+ search_tbl->action = tbl->action;
+ return 0;
+
+}
+
+/*
+ * Try to switch to new modulation mode from SISO
+ */
+static int
+il4965_rs_move_siso_to_other(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct ieee80211_sta *sta, int idx)
+{
+ u8 is_green = lq_sta->is_green;
+ struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ struct il_scale_tbl_info *search_tbl =
+ &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+ struct il_rate_scale_data *win = &(tbl->win[idx]);
+ struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+ u32 sz =
+ (sizeof(struct il_scale_tbl_info) -
+ (sizeof(struct il_rate_scale_data) * RATE_COUNT));
+ u8 start_action;
+ u8 valid_tx_ant = il->hw_params.valid_tx_ant;
+ u8 tx_chains_num = il->hw_params.tx_chains_num;
+ u8 update_search_tbl_counter = 0;
+ int ret;
+
+ start_action = tbl->action;
+
+ for (;;) {
+ lq_sta->action_counter++;
+ switch (tbl->action) {
+ case IL_SISO_SWITCH_ANTENNA1:
+ case IL_SISO_SWITCH_ANTENNA2:
+ D_RATE("LQ: SISO toggle Antenna\n");
+ if ((tbl->action == IL_SISO_SWITCH_ANTENNA1 &&
+ tx_chains_num <= 1) ||
+ (tbl->action == IL_SISO_SWITCH_ANTENNA2 &&
+ tx_chains_num <= 2))
+ break;
+
+ if (win->success_ratio >= IL_RS_GOOD_RATIO)
+ break;
+
+ memcpy(search_tbl, tbl, sz);
+ if (il4965_rs_toggle_antenna
+ (valid_tx_ant, &search_tbl->current_rate,
+ search_tbl)) {
+ update_search_tbl_counter = 1;
+ goto out;
+ }
+ break;
+ case IL_SISO_SWITCH_MIMO2_AB:
+ case IL_SISO_SWITCH_MIMO2_AC:
+ case IL_SISO_SWITCH_MIMO2_BC:
+ D_RATE("LQ: SISO switch to MIMO2\n");
+ memcpy(search_tbl, tbl, sz);
+ search_tbl->is_SGI = 0;
+
+ if (tbl->action == IL_SISO_SWITCH_MIMO2_AB)
+ search_tbl->ant_type = ANT_AB;
+ else if (tbl->action == IL_SISO_SWITCH_MIMO2_AC)
+ search_tbl->ant_type = ANT_AC;
+ else
+ search_tbl->ant_type = ANT_BC;
+
+ if (!il4965_rs_is_valid_ant
+ (valid_tx_ant, search_tbl->ant_type))
+ break;
+
+ ret =
+ il4965_rs_switch_to_mimo2(il, lq_sta, conf, sta,
+ search_tbl, idx);
+ if (!ret)
+ goto out;
+ break;
+ case IL_SISO_SWITCH_GI:
+ if (!tbl->is_ht40 &&
+ !(ht_cap->cap & IEEE80211_HT_CAP_SGI_20))
+ break;
+ if (tbl->is_ht40 &&
+ !(ht_cap->cap & IEEE80211_HT_CAP_SGI_40))
+ break;
+
+ D_RATE("LQ: SISO toggle SGI/NGI\n");
+
+ memcpy(search_tbl, tbl, sz);
+ if (is_green) {
+ if (!tbl->is_SGI)
+ break;
+ else
+ IL_ERR("SGI was set in GF+SISO\n");
+ }
+ search_tbl->is_SGI = !tbl->is_SGI;
+ il4965_rs_set_expected_tpt_table(lq_sta, search_tbl);
+ if (tbl->is_SGI) {
+ s32 tpt = lq_sta->last_tpt / 100;
+ if (tpt >= search_tbl->expected_tpt[idx])
+ break;
+ }
+ search_tbl->current_rate =
+ il4965_rate_n_flags_from_tbl(il, search_tbl, idx,
+ is_green);
+ update_search_tbl_counter = 1;
+ goto out;
+ }
+ tbl->action++;
+ if (tbl->action > IL_SISO_SWITCH_GI)
+ tbl->action = IL_SISO_SWITCH_ANTENNA1;
+
+ if (tbl->action == start_action)
+ break;
+ }
+ search_tbl->lq_type = LQ_NONE;
+ return 0;
+
+out:
+ lq_sta->search_better_tbl = 1;
+ tbl->action++;
+ if (tbl->action > IL_SISO_SWITCH_GI)
+ tbl->action = IL_SISO_SWITCH_ANTENNA1;
+ if (update_search_tbl_counter)
+ search_tbl->action = tbl->action;
+
+ return 0;
+}
+
+/*
+ * Try to switch to new modulation mode from MIMO2
+ */
+static int
+il4965_rs_move_mimo2_to_other(struct il_priv *il, struct il_lq_sta *lq_sta,
+ struct ieee80211_conf *conf,
+ struct ieee80211_sta *sta, int idx)
+{
+ s8 is_green = lq_sta->is_green;
+ struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ struct il_scale_tbl_info *search_tbl =
+ &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+ struct il_rate_scale_data *win = &(tbl->win[idx]);
+ struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+ u32 sz =
+ (sizeof(struct il_scale_tbl_info) -
+ (sizeof(struct il_rate_scale_data) * RATE_COUNT));
+ u8 start_action;
+ u8 valid_tx_ant = il->hw_params.valid_tx_ant;
+ u8 tx_chains_num = il->hw_params.tx_chains_num;
+ u8 update_search_tbl_counter = 0;
+ int ret;
+
+ start_action = tbl->action;
+ for (;;) {
+ lq_sta->action_counter++;
+ switch (tbl->action) {
+ case IL_MIMO2_SWITCH_ANTENNA1:
+ case IL_MIMO2_SWITCH_ANTENNA2:
+ D_RATE("LQ: MIMO2 toggle Antennas\n");
+
+ if (tx_chains_num <= 2)
+ break;
+
+ if (win->success_ratio >= IL_RS_GOOD_RATIO)
+ break;
+
+ memcpy(search_tbl, tbl, sz);
+ if (il4965_rs_toggle_antenna
+ (valid_tx_ant, &search_tbl->current_rate,
+ search_tbl)) {
+ update_search_tbl_counter = 1;
+ goto out;
+ }
+ break;
+ case IL_MIMO2_SWITCH_SISO_A:
+ case IL_MIMO2_SWITCH_SISO_B:
+ case IL_MIMO2_SWITCH_SISO_C:
+ D_RATE("LQ: MIMO2 switch to SISO\n");
+
+ /* Set up new search table for SISO */
+ memcpy(search_tbl, tbl, sz);
+
+ if (tbl->action == IL_MIMO2_SWITCH_SISO_A)
+ search_tbl->ant_type = ANT_A;
+ else if (tbl->action == IL_MIMO2_SWITCH_SISO_B)
+ search_tbl->ant_type = ANT_B;
+ else
+ search_tbl->ant_type = ANT_C;
+
+ if (!il4965_rs_is_valid_ant
+ (valid_tx_ant, search_tbl->ant_type))
+ break;
+
+ ret =
+ il4965_rs_switch_to_siso(il, lq_sta, conf, sta,
+ search_tbl, idx);
+ if (!ret)
+ goto out;
+
+ break;
+
+ case IL_MIMO2_SWITCH_GI:
+ if (!tbl->is_ht40 &&
+ !(ht_cap->cap & IEEE80211_HT_CAP_SGI_20))
+ break;
+ if (tbl->is_ht40 &&
+ !(ht_cap->cap & IEEE80211_HT_CAP_SGI_40))
+ break;
+
+ D_RATE("LQ: MIMO2 toggle SGI/NGI\n");
+
+ /* Set up new search table for MIMO2 */
+ memcpy(search_tbl, tbl, sz);
+ search_tbl->is_SGI = !tbl->is_SGI;
+ il4965_rs_set_expected_tpt_table(lq_sta, search_tbl);
+ /*
+ * If active table already uses the fastest possible
+ * modulation (dual stream with short guard interval),
+ * and it's working well, there's no need to look
+ * for a better type of modulation!
+ */
+ if (tbl->is_SGI) {
+ s32 tpt = lq_sta->last_tpt / 100;
+ if (tpt >= search_tbl->expected_tpt[idx])
+ break;
+ }
+ search_tbl->current_rate =
+ il4965_rate_n_flags_from_tbl(il, search_tbl, idx,
+ is_green);
+ update_search_tbl_counter = 1;
+ goto out;
+
+ }
+ tbl->action++;
+ if (tbl->action > IL_MIMO2_SWITCH_GI)
+ tbl->action = IL_MIMO2_SWITCH_ANTENNA1;
+
+ if (tbl->action == start_action)
+ break;
+ }
+ search_tbl->lq_type = LQ_NONE;
+ return 0;
+out:
+ lq_sta->search_better_tbl = 1;
+ tbl->action++;
+ if (tbl->action > IL_MIMO2_SWITCH_GI)
+ tbl->action = IL_MIMO2_SWITCH_ANTENNA1;
+ if (update_search_tbl_counter)
+ search_tbl->action = tbl->action;
+
+ return 0;
+
+}
+
+/*
+ * Check whether we should continue using same modulation mode, or
+ * begin search for a new mode, based on:
+ * 1) # tx successes or failures while using this mode
+ * 2) # times calling this function
+ * 3) elapsed time in this mode (not used, for now)
+ */
+static void
+il4965_rs_stay_in_table(struct il_lq_sta *lq_sta, bool force_search)
+{
+ struct il_scale_tbl_info *tbl;
+ int i;
+ int active_tbl;
+ int flush_interval_passed = 0;
+ struct il_priv *il;
+
+ il = lq_sta->drv;
+ active_tbl = lq_sta->active_tbl;
+
+ tbl = &(lq_sta->lq_info[active_tbl]);
+
+ /* If we've been disallowing search, see if we should now allow it */
+ if (lq_sta->stay_in_tbl) {
+
+ /* Elapsed time using current modulation mode */
+ if (lq_sta->flush_timer)
+ flush_interval_passed =
+ time_after(jiffies,
+ (unsigned long)(lq_sta->flush_timer +
+ RATE_SCALE_FLUSH_INTVL));
+
+ /*
+ * Check if we should allow search for new modulation mode.
+ * If many frames have failed or succeeded, or we've used
+ * this same modulation for a long time, allow search, and
+ * reset history stats that keep track of whether we should
+ * allow a new search. Also (below) reset all bitmaps and
+ * stats in active history.
+ */
+ if (force_search ||
+ lq_sta->total_failed > lq_sta->max_failure_limit ||
+ lq_sta->total_success > lq_sta->max_success_limit ||
+ (!lq_sta->search_better_tbl && lq_sta->flush_timer &&
+ flush_interval_passed)) {
+ D_RATE("LQ: stay is expired %d %d %d\n:",
+ lq_sta->total_failed, lq_sta->total_success,
+ flush_interval_passed);
+
+ /* Allow search for new mode */
+ lq_sta->stay_in_tbl = 0; /* only place reset */
+ lq_sta->total_failed = 0;
+ lq_sta->total_success = 0;
+ lq_sta->flush_timer = 0;
+
+ /*
+ * Else if we've used this modulation mode enough repetitions
+ * (regardless of elapsed time or success/failure), reset
+ * history bitmaps and rate-specific stats for all rates in
+ * active table.
+ */
+ } else {
+ lq_sta->table_count++;
+ if (lq_sta->table_count >= lq_sta->table_count_limit) {
+ lq_sta->table_count = 0;
+
+ D_RATE("LQ: stay in table clear win\n");
+ for (i = 0; i < RATE_COUNT; i++)
+ il4965_rs_rate_scale_clear_win(&
+ (tbl->
+ win
+ [i]));
+ }
+ }
+
+ /* If transitioning to allow "search", reset all history
+ * bitmaps and stats in active table (this will become the new
+ * "search" table). */
+ if (!lq_sta->stay_in_tbl) {
+ for (i = 0; i < RATE_COUNT; i++)
+ il4965_rs_rate_scale_clear_win(&(tbl->win[i]));
+ }
+ }
+}
+
+/*
+ * setup rate table in uCode
+ */
+static void
+il4965_rs_update_rate_tbl(struct il_priv *il, struct il_rxon_context *ctx,
+ struct il_lq_sta *lq_sta,
+ struct il_scale_tbl_info *tbl, int idx, u8 is_green)
+{
+ u32 rate;
+
+ /* Update uCode's rate table. */
+ rate = il4965_rate_n_flags_from_tbl(il, tbl, idx, is_green);
+ il4965_rs_fill_link_cmd(il, lq_sta, rate);
+ il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false);
+}
+
+/*
+ * Do rate scaling and search for new modulation mode.
+ */
+static void
+il4965_rs_rate_scale_perform(struct il_priv *il, struct sk_buff *skb,
+ struct ieee80211_sta *sta,
+ struct il_lq_sta *lq_sta)
+{
+ struct ieee80211_hw *hw = il->hw;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ int low = RATE_INVALID;
+ int high = RATE_INVALID;
+ int idx;
+ int i;
+ struct il_rate_scale_data *win = NULL;
+ int current_tpt = IL_INVALID_VALUE;
+ int low_tpt = IL_INVALID_VALUE;
+ int high_tpt = IL_INVALID_VALUE;
+ u32 fail_count;
+ s8 scale_action = 0;
+ u16 rate_mask;
+ u8 update_lq = 0;
+ struct il_scale_tbl_info *tbl, *tbl1;
+ u16 rate_scale_idx_msk = 0;
+ u8 is_green = 0;
+ u8 active_tbl = 0;
+ u8 done_search = 0;
+ u16 high_low;
+ s32 sr;
+ u8 tid = MAX_TID_COUNT;
+ struct il_tid_data *tid_data;
+ struct il_station_priv *sta_priv = (void *)sta->drv_priv;
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ D_RATE("rate scale calculate new rate for skb\n");
+
+ /* Send management frames and NO_ACK data using lowest rate. */
+ /* TODO: this could probably be improved.. */
+ if (!ieee80211_is_data(hdr->frame_control) ||
+ (info->flags & IEEE80211_TX_CTL_NO_ACK))
+ return;
+
+ lq_sta->supp_rates = sta->supp_rates[lq_sta->band];
+
+ tid = il4965_rs_tl_add_packet(lq_sta, hdr);
+ if (tid != MAX_TID_COUNT && (lq_sta->tx_agg_tid_en & (1 << tid))) {
+ tid_data = &il->stations[lq_sta->lq.sta_id].tid[tid];
+ if (tid_data->agg.state == IL_AGG_OFF)
+ lq_sta->is_agg = 0;
+ else
+ lq_sta->is_agg = 1;
+ } else
+ lq_sta->is_agg = 0;
+
+ /*
+ * Select rate-scale / modulation-mode table to work with in
+ * the rest of this function: "search" if searching for better
+ * modulation mode, or "active" if doing rate scaling within a mode.
+ */
+ if (!lq_sta->search_better_tbl)
+ active_tbl = lq_sta->active_tbl;
+ else
+ active_tbl = 1 - lq_sta->active_tbl;
+
+ tbl = &(lq_sta->lq_info[active_tbl]);
+ if (is_legacy(tbl->lq_type))
+ lq_sta->is_green = 0;
+ else
+ lq_sta->is_green = il4965_rs_use_green(sta);
+ is_green = lq_sta->is_green;
+
+ /* current tx rate */
+ idx = lq_sta->last_txrate_idx;
+
+ D_RATE("Rate scale idx %d for type %d\n", idx, tbl->lq_type);
+
+ /* rates available for this association, and for modulation mode */
+ rate_mask = il4965_rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
+
+ D_RATE("mask 0x%04X\n", rate_mask);
+
+ /* mask with station rate restriction */
+ if (is_legacy(tbl->lq_type)) {
+ if (lq_sta->band == IEEE80211_BAND_5GHZ)
+ /* supp_rates has no CCK bits in A mode */
+ rate_scale_idx_msk =
+ (u16) (rate_mask &
+ (lq_sta->supp_rates << IL_FIRST_OFDM_RATE));
+ else
+ rate_scale_idx_msk =
+ (u16) (rate_mask & lq_sta->supp_rates);
+
+ } else
+ rate_scale_idx_msk = rate_mask;
+
+ if (!rate_scale_idx_msk)
+ rate_scale_idx_msk = rate_mask;
+
+ if (!((1 << idx) & rate_scale_idx_msk)) {
+ IL_ERR("Current Rate is not valid\n");
+ if (lq_sta->search_better_tbl) {
+ /* revert to active table if search table is not valid */
+ tbl->lq_type = LQ_NONE;
+ lq_sta->search_better_tbl = 0;
+ tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ /* get "active" rate info */
+ idx = il4965_hwrate_to_plcp_idx(tbl->current_rate);
+ il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
+ is_green);
+ }
+ return;
+ }
+
+ /* Get expected throughput table and history win for current rate */
+ if (!tbl->expected_tpt) {
+ IL_ERR("tbl->expected_tpt is NULL\n");
+ return;
+ }
+
+ /* force user max rate if set by user */
+ if (lq_sta->max_rate_idx != -1 && lq_sta->max_rate_idx < idx) {
+ idx = lq_sta->max_rate_idx;
+ update_lq = 1;
+ win = &(tbl->win[idx]);
+ goto lq_update;
+ }
+
+ win = &(tbl->win[idx]);
+
+ /*
+ * If there is not enough history to calculate actual average
+ * throughput, keep analyzing results of more tx frames, without
+ * changing rate or mode (bypass most of the rest of this function).
+ * Set up new rate table in uCode only if old rate is not supported
+ * in current association (use new rate found above).
+ */
+ fail_count = win->counter - win->success_counter;
+ if (fail_count < RATE_MIN_FAILURE_TH &&
+ win->success_counter < RATE_MIN_SUCCESS_TH) {
+ D_RATE("LQ: still below TH. succ=%d total=%d " "for idx %d\n",
+ win->success_counter, win->counter, idx);
+
+ /* Can't calculate this yet; not enough history */
+ win->average_tpt = IL_INVALID_VALUE;
+
+ /* Should we stay with this modulation mode,
+ * or search for a new one? */
+ il4965_rs_stay_in_table(lq_sta, false);
+
+ goto out;
+ }
+ /* Else we have enough samples; calculate estimate of
+ * actual average throughput */
+ if (win->average_tpt !=
+ ((win->success_ratio * tbl->expected_tpt[idx] + 64) / 128)) {
+ IL_ERR("expected_tpt should have been calculated by now\n");
+ win->average_tpt =
+ ((win->success_ratio * tbl->expected_tpt[idx] + 64) / 128);
+ }
+
+ /* If we are searching for better modulation mode, check success. */
+ if (lq_sta->search_better_tbl) {
+ /* If good success, continue using the "search" mode;
+ * no need to send new link quality command, since we're
+ * continuing to use the setup that we've been trying. */
+ if (win->average_tpt > lq_sta->last_tpt) {
+
+ D_RATE("LQ: SWITCHING TO NEW TBL "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ win->success_ratio, win->average_tpt,
+ lq_sta->last_tpt);
+
+ if (!is_legacy(tbl->lq_type))
+ lq_sta->enable_counter = 1;
+
+ /* Swap tables; "search" becomes "active" */
+ lq_sta->active_tbl = active_tbl;
+ current_tpt = win->average_tpt;
+
+ /* Else poor success; go back to mode in "active" table */
+ } else {
+
+ D_RATE("LQ: GOING BACK TO THE OLD TBL "
+ "suc=%d cur-tpt=%d old-tpt=%d\n",
+ win->success_ratio, win->average_tpt,
+ lq_sta->last_tpt);
+
+ /* Nullify "search" table */
+ tbl->lq_type = LQ_NONE;
+
+ /* Revert to "active" table */
+ active_tbl = lq_sta->active_tbl;
+ tbl = &(lq_sta->lq_info[active_tbl]);
+
+ /* Revert to "active" rate and throughput info */
+ idx = il4965_hwrate_to_plcp_idx(tbl->current_rate);
+ current_tpt = lq_sta->last_tpt;
+
+ /* Need to set up a new rate table in uCode */
+ update_lq = 1;
+ }
+
+ /* Either way, we've made a decision; modulation mode
+ * search is done, allow rate adjustment next time. */
+ lq_sta->search_better_tbl = 0;
+ done_search = 1; /* Don't switch modes below! */
+ goto lq_update;
+ }
+
+ /* (Else) not in search of better modulation mode, try for better
+ * starting rate, while staying in this mode. */
+ high_low =
+ il4965_rs_get_adjacent_rate(il, idx, rate_scale_idx_msk,
+ tbl->lq_type);
+ low = high_low & 0xff;
+ high = (high_low >> 8) & 0xff;
+
+ /* If user set max rate, dont allow higher than user constrain */
+ if (lq_sta->max_rate_idx != -1 && lq_sta->max_rate_idx < high)
+ high = RATE_INVALID;
+
+ sr = win->success_ratio;
+
+ /* Collect measured throughputs for current and adjacent rates */
+ current_tpt = win->average_tpt;
+ if (low != RATE_INVALID)
+ low_tpt = tbl->win[low].average_tpt;
+ if (high != RATE_INVALID)
+ high_tpt = tbl->win[high].average_tpt;
+
+ scale_action = 0;
+
+ /* Too many failures, decrease rate */
+ if (sr <= RATE_DECREASE_TH || current_tpt == 0) {
+ D_RATE("decrease rate because of low success_ratio\n");
+ scale_action = -1;
+
+ /* No throughput measured yet for adjacent rates; try increase. */
+ } else if (low_tpt == IL_INVALID_VALUE && high_tpt == IL_INVALID_VALUE) {
+
+ if (high != RATE_INVALID && sr >= RATE_INCREASE_TH)
+ scale_action = 1;
+ else if (low != RATE_INVALID)
+ scale_action = 0;
+ }
+
+ /* Both adjacent throughputs are measured, but neither one has better
+ * throughput; we're using the best rate, don't change it! */
+ else if (low_tpt != IL_INVALID_VALUE && high_tpt != IL_INVALID_VALUE &&
+ low_tpt < current_tpt && high_tpt < current_tpt)
+ scale_action = 0;
+
+ /* At least one adjacent rate's throughput is measured,
+ * and may have better performance. */
+ else {
+ /* Higher adjacent rate's throughput is measured */
+ if (high_tpt != IL_INVALID_VALUE) {
+ /* Higher rate has better throughput */
+ if (high_tpt > current_tpt && sr >= RATE_INCREASE_TH)
+ scale_action = 1;
+ else
+ scale_action = 0;
+
+ /* Lower adjacent rate's throughput is measured */
+ } else if (low_tpt != IL_INVALID_VALUE) {
+ /* Lower rate has better throughput */
+ if (low_tpt > current_tpt) {
+ D_RATE("decrease rate because of low tpt\n");
+ scale_action = -1;
+ } else if (sr >= RATE_INCREASE_TH) {
+ scale_action = 1;
+ }
+ }
+ }
+
+ /* Sanity check; asked for decrease, but success rate or throughput
+ * has been good at old rate. Don't change it. */
+ if (scale_action == -1 && low != RATE_INVALID &&
+ (sr > RATE_HIGH_TH || current_tpt > 100 * tbl->expected_tpt[low]))
+ scale_action = 0;
+
+ switch (scale_action) {
+ case -1:
+ /* Decrease starting rate, update uCode's rate table */
+ if (low != RATE_INVALID) {
+ update_lq = 1;
+ idx = low;
+ }
+
+ break;
+ case 1:
+ /* Increase starting rate, update uCode's rate table */
+ if (high != RATE_INVALID) {
+ update_lq = 1;
+ idx = high;
+ }
+
+ break;
+ case 0:
+ /* No change */
+ default:
+ break;
+ }
+
+ D_RATE("choose rate scale idx %d action %d low %d " "high %d type %d\n",
+ idx, scale_action, low, high, tbl->lq_type);
+
+lq_update:
+ /* Replace uCode's rate table for the destination station. */
+ if (update_lq)
+ il4965_rs_update_rate_tbl(il, ctx, lq_sta, tbl, idx,
+ is_green);
+
+ /* Should we stay with this modulation mode,
+ * or search for a new one? */
+ il4965_rs_stay_in_table(lq_sta, false);
+
+ /*
+ * Search for new modulation mode if we're:
+ * 1) Not changing rates right now
+ * 2) Not just finishing up a search
+ * 3) Allowing a new search
+ */
+ if (!update_lq && !done_search && !lq_sta->stay_in_tbl && win->counter) {
+ /* Save current throughput to compare with "search" throughput */
+ lq_sta->last_tpt = current_tpt;
+
+ /* Select a new "search" modulation mode to try.
+ * If one is found, set up the new "search" table. */
+ if (is_legacy(tbl->lq_type))
+ il4965_rs_move_legacy_other(il, lq_sta, conf, sta, idx);
+ else if (is_siso(tbl->lq_type))
+ il4965_rs_move_siso_to_other(il, lq_sta, conf, sta,
+ idx);
+ else /* (is_mimo2(tbl->lq_type)) */
+ il4965_rs_move_mimo2_to_other(il, lq_sta, conf, sta,
+ idx);
+
+ /* If new "search" mode was selected, set up in uCode table */
+ if (lq_sta->search_better_tbl) {
+ /* Access the "search" table, clear its history. */
+ tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
+ for (i = 0; i < RATE_COUNT; i++)
+ il4965_rs_rate_scale_clear_win(&(tbl->win[i]));
+
+ /* Use new "search" start rate */
+ idx = il4965_hwrate_to_plcp_idx(tbl->current_rate);
+
+ D_RATE("Switch current mcs: %X idx: %d\n",
+ tbl->current_rate, idx);
+ il4965_rs_fill_link_cmd(il, lq_sta, tbl->current_rate);
+ il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_ASYNC, false);
+ } else
+ done_search = 1;
+ }
+
+ if (done_search && !lq_sta->stay_in_tbl) {
+ /* If the "active" (non-search) mode was legacy,
+ * and we've tried switching antennas,
+ * but we haven't been able to try HT modes (not available),
+ * stay with best antenna legacy modulation for a while
+ * before next round of mode comparisons. */
+ tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
+ if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) &&
+ lq_sta->action_counter > tbl1->max_search) {
+ D_RATE("LQ: STAY in legacy table\n");
+ il4965_rs_set_stay_in_table(il, 1, lq_sta);
+ }
+
+ /* If we're in an HT mode, and all 3 mode switch actions
+ * have been tried and compared, stay in this best modulation
+ * mode for a while before next round of mode comparisons. */
+ if (lq_sta->enable_counter &&
+ lq_sta->action_counter >= tbl1->max_search) {
+ if (lq_sta->last_tpt > IL_AGG_TPT_THREHOLD &&
+ (lq_sta->tx_agg_tid_en & (1 << tid)) &&
+ tid != MAX_TID_COUNT) {
+ tid_data =
+ &il->stations[lq_sta->lq.sta_id].tid[tid];
+ if (tid_data->agg.state == IL_AGG_OFF) {
+ D_RATE("try to aggregate tid %d\n",
+ tid);
+ il4965_rs_tl_turn_on_agg(il, tid,
+ lq_sta, sta);
+ }
+ }
+ il4965_rs_set_stay_in_table(il, 0, lq_sta);
+ }
+ }
+
+out:
+ tbl->current_rate =
+ il4965_rate_n_flags_from_tbl(il, tbl, idx, is_green);
+ i = idx;
+ lq_sta->last_txrate_idx = i;
+}
+
+/**
+ * il4965_rs_initialize_lq - Initialize a station's hardware rate table
+ *
+ * The uCode's station table contains a table of fallback rates
+ * for automatic fallback during transmission.
+ *
+ * NOTE: This sets up a default set of values. These will be replaced later
+ * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of
+ * rc80211_simple.
+ *
+ * NOTE: Run C_ADD_STA command to set up station table entry, before
+ * calling this function (which runs C_TX_LINK_QUALITY_CMD,
+ * which requires station table entry to exist).
+ */
+static void
+il4965_rs_initialize_lq(struct il_priv *il, struct ieee80211_conf *conf,
+ struct ieee80211_sta *sta, struct il_lq_sta *lq_sta)
+{
+ struct il_scale_tbl_info *tbl;
+ int rate_idx;
+ int i;
+ u32 rate;
+ u8 use_green = il4965_rs_use_green(sta);
+ u8 active_tbl = 0;
+ u8 valid_tx_ant;
+ struct il_station_priv *sta_priv;
+ struct il_rxon_context *ctx;
+
+ if (!sta || !lq_sta)
+ return;
+
+ sta_priv = (void *)sta->drv_priv;
+ ctx = sta_priv->common.ctx;
+
+ i = lq_sta->last_txrate_idx;
+
+ valid_tx_ant = il->hw_params.valid_tx_ant;
+
+ if (!lq_sta->search_better_tbl)
+ active_tbl = lq_sta->active_tbl;
+ else
+ active_tbl = 1 - lq_sta->active_tbl;
+
+ tbl = &(lq_sta->lq_info[active_tbl]);
+
+ if (i < 0 || i >= RATE_COUNT)
+ i = 0;
+
+ rate = il_rates[i].plcp;
+ tbl->ant_type = il4965_first_antenna(valid_tx_ant);
+ rate |= tbl->ant_type << RATE_MCS_ANT_POS;
+
+ if (i >= IL_FIRST_CCK_RATE && i <= IL_LAST_CCK_RATE)
+ rate |= RATE_MCS_CCK_MSK;
+
+ il4965_rs_get_tbl_info_from_mcs(rate, il->band, tbl, &rate_idx);
+ if (!il4965_rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
+ il4965_rs_toggle_antenna(valid_tx_ant, &rate, tbl);
+
+ rate = il4965_rate_n_flags_from_tbl(il, tbl, rate_idx, use_green);
+ tbl->current_rate = rate;
+ il4965_rs_set_expected_tpt_table(lq_sta, tbl);
+ il4965_rs_fill_link_cmd(NULL, lq_sta, rate);
+ il->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq;
+ il_send_lq_cmd(il, ctx, &lq_sta->lq, CMD_SYNC, true);
+}
+
+static void
+il4965_rs_get_rate(void *il_r, struct ieee80211_sta *sta, void *il_sta,
+ struct ieee80211_tx_rate_control *txrc)
+{
+
+ struct sk_buff *skb = txrc->skb;
+ struct ieee80211_supported_band *sband = txrc->sband;
+ struct il_priv *il __maybe_unused = (struct il_priv *)il_r;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct il_lq_sta *lq_sta = il_sta;
+ int rate_idx;
+
+ D_RATE("rate scale calculate new rate for skb\n");
+
+ /* Get max rate if user set max rate */
+ if (lq_sta) {
+ lq_sta->max_rate_idx = txrc->max_rate_idx;
+ if (sband->band == IEEE80211_BAND_5GHZ &&
+ lq_sta->max_rate_idx != -1)
+ lq_sta->max_rate_idx += IL_FIRST_OFDM_RATE;
+ if (lq_sta->max_rate_idx < 0 ||
+ lq_sta->max_rate_idx >= RATE_COUNT)
+ lq_sta->max_rate_idx = -1;
+ }
+
+ /* Treat uninitialized rate scaling data same as non-existing. */
+ if (lq_sta && !lq_sta->drv) {
+ D_RATE("Rate scaling not initialized yet.\n");
+ il_sta = NULL;
+ }
+
+ /* Send management frames and NO_ACK data using lowest rate. */
+ if (rate_control_send_low(sta, il_sta, txrc))
+ return;
+
+ if (!lq_sta)
+ return;
+
+ rate_idx = lq_sta->last_txrate_idx;
+
+ if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) {
+ rate_idx -= IL_FIRST_OFDM_RATE;
+ /* 6M and 9M shared same MCS idx */
+ rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0;
+ if (il4965_rs_extract_rate(lq_sta->last_rate_n_flags) >=
+ RATE_MIMO2_6M_PLCP)
+ rate_idx = rate_idx + MCS_IDX_PER_STREAM;
+ info->control.rates[0].flags = IEEE80211_TX_RC_MCS;
+ if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK)
+ info->control.rates[0].flags |=
+ IEEE80211_TX_RC_SHORT_GI;
+ if (lq_sta->last_rate_n_flags & RATE_MCS_DUP_MSK)
+ info->control.rates[0].flags |=
+ IEEE80211_TX_RC_DUP_DATA;
+ if (lq_sta->last_rate_n_flags & RATE_MCS_HT40_MSK)
+ info->control.rates[0].flags |=
+ IEEE80211_TX_RC_40_MHZ_WIDTH;
+ if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK)
+ info->control.rates[0].flags |=
+ IEEE80211_TX_RC_GREEN_FIELD;
+ } else {
+ /* Check for invalid rates */
+ if (rate_idx < 0 || rate_idx >= RATE_COUNT_LEGACY ||
+ (sband->band == IEEE80211_BAND_5GHZ &&
+ rate_idx < IL_FIRST_OFDM_RATE))
+ rate_idx = rate_lowest_index(sband, sta);
+ /* On valid 5 GHz rate, adjust idx */
+ else if (sband->band == IEEE80211_BAND_5GHZ)
+ rate_idx -= IL_FIRST_OFDM_RATE;
+ info->control.rates[0].flags = 0;
+ }
+ info->control.rates[0].idx = rate_idx;
+
+}
+
+static void *
+il4965_rs_alloc_sta(void *il_rate, struct ieee80211_sta *sta, gfp_t gfp)
+{
+ struct il_station_priv *sta_priv =
+ (struct il_station_priv *)sta->drv_priv;
+ struct il_priv *il;
+
+ il = (struct il_priv *)il_rate;
+ D_RATE("create station rate scale win\n");
+
+ return &sta_priv->lq_sta;
+}
+
+/*
+ * Called after adding a new station to initialize rate scaling
+ */
+void
+il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta, u8 sta_id)
+{
+ int i, j;
+ struct ieee80211_hw *hw = il->hw;
+ struct ieee80211_conf *conf = &il->hw->conf;
+ struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+ struct il_station_priv *sta_priv;
+ struct il_lq_sta *lq_sta;
+ struct ieee80211_supported_band *sband;
+
+ sta_priv = (struct il_station_priv *)sta->drv_priv;
+ lq_sta = &sta_priv->lq_sta;
+ sband = hw->wiphy->bands[conf->channel->band];
+
+ lq_sta->lq.sta_id = sta_id;
+
+ for (j = 0; j < LQ_SIZE; j++)
+ for (i = 0; i < RATE_COUNT; i++)
+ il4965_rs_rate_scale_clear_win(&lq_sta->lq_info[j].
+ win[i]);
+
+ lq_sta->flush_timer = 0;
+ lq_sta->supp_rates = sta->supp_rates[sband->band];
+ for (j = 0; j < LQ_SIZE; j++)
+ for (i = 0; i < RATE_COUNT; i++)
+ il4965_rs_rate_scale_clear_win(&lq_sta->lq_info[j].
+ win[i]);
+
+ D_RATE("LQ:" "*** rate scale station global init for station %d ***\n",
+ sta_id);
+ /* TODO: what is a good starting rate for STA? About middle? Maybe not
+ * the lowest or the highest rate.. Could consider using RSSI from
+ * previous packets? Need to have IEEE 802.1X auth succeed immediately
+ * after assoc.. */
+
+ lq_sta->is_dup = 0;
+ lq_sta->max_rate_idx = -1;
+ lq_sta->missed_rate_counter = IL_MISSED_RATE_MAX;
+ lq_sta->is_green = il4965_rs_use_green(sta);
+ lq_sta->active_legacy_rate = il->active_rate & ~(0x1000);
+ lq_sta->band = il->band;
+ /*
+ * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
+ * supp_rates[] does not; shift to convert format, force 9 MBits off.
+ */
+ lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
+ lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
+ lq_sta->active_siso_rate &= ~((u16) 0x2);
+ lq_sta->active_siso_rate <<= IL_FIRST_OFDM_RATE;
+
+ /* Same here */
+ lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
+ lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
+ lq_sta->active_mimo2_rate &= ~((u16) 0x2);
+ lq_sta->active_mimo2_rate <<= IL_FIRST_OFDM_RATE;
+
+ /* These values will be overridden later */
+ lq_sta->lq.general_params.single_stream_ant_msk =
+ il4965_first_antenna(il->hw_params.valid_tx_ant);
+ lq_sta->lq.general_params.dual_stream_ant_msk =
+ il->hw_params.valid_tx_ant & ~il4965_first_antenna(il->hw_params.
+ valid_tx_ant);
+ if (!lq_sta->lq.general_params.dual_stream_ant_msk) {
+ lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB;
+ } else if (il4965_num_of_ant(il->hw_params.valid_tx_ant) == 2) {
+ lq_sta->lq.general_params.dual_stream_ant_msk =
+ il->hw_params.valid_tx_ant;
+ }
+
+ /* as default allow aggregation for all tids */
+ lq_sta->tx_agg_tid_en = IL_AGG_ALL_TID;
+ lq_sta->drv = il;
+
+ /* Set last_txrate_idx to lowest rate */
+ lq_sta->last_txrate_idx = rate_lowest_index(sband, sta);
+ if (sband->band == IEEE80211_BAND_5GHZ)
+ lq_sta->last_txrate_idx += IL_FIRST_OFDM_RATE;
+ lq_sta->is_agg = 0;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ lq_sta->dbg_fixed_rate = 0;
+#endif
+
+ il4965_rs_initialize_lq(il, conf, sta, lq_sta);
+}
+
+static void
+il4965_rs_fill_link_cmd(struct il_priv *il, struct il_lq_sta *lq_sta,
+ u32 new_rate)
+{
+ struct il_scale_tbl_info tbl_type;
+ int idx = 0;
+ int rate_idx;
+ int repeat_rate = 0;
+ u8 ant_toggle_cnt = 0;
+ u8 use_ht_possible = 1;
+ u8 valid_tx_ant = 0;
+ struct il_link_quality_cmd *lq_cmd = &lq_sta->lq;
+
+ /* Override starting rate (idx 0) if needed for debug purposes */
+ il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx);
+
+ /* Interpret new_rate (rate_n_flags) */
+ il4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type,
+ &rate_idx);
+
+ /* How many times should we repeat the initial rate? */
+ if (is_legacy(tbl_type.lq_type)) {
+ ant_toggle_cnt = 1;
+ repeat_rate = IL_NUMBER_TRY;
+ } else {
+ repeat_rate = IL_HT_NUMBER_TRY;
+ }
+
+ lq_cmd->general_params.mimo_delimiter =
+ is_mimo(tbl_type.lq_type) ? 1 : 0;
+
+ /* Fill 1st table entry (idx 0) */
+ lq_cmd->rs_table[idx].rate_n_flags = cpu_to_le32(new_rate);
+
+ if (il4965_num_of_ant(tbl_type.ant_type) == 1) {
+ lq_cmd->general_params.single_stream_ant_msk =
+ tbl_type.ant_type;
+ } else if (il4965_num_of_ant(tbl_type.ant_type) == 2) {
+ lq_cmd->general_params.dual_stream_ant_msk = tbl_type.ant_type;
+ }
+ /* otherwise we don't modify the existing value */
+ idx++;
+ repeat_rate--;
+ if (il)
+ valid_tx_ant = il->hw_params.valid_tx_ant;
+
+ /* Fill rest of rate table */
+ while (idx < LINK_QUAL_MAX_RETRY_NUM) {
+ /* Repeat initial/next rate.
+ * For legacy IL_NUMBER_TRY == 1, this loop will not execute.
+ * For HT IL_HT_NUMBER_TRY == 3, this executes twice. */
+ while (repeat_rate > 0 && idx < LINK_QUAL_MAX_RETRY_NUM) {
+ if (is_legacy(tbl_type.lq_type)) {
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (il &&
+ il4965_rs_toggle_antenna(valid_tx_ant,
+ &new_rate,
+ &tbl_type))
+ ant_toggle_cnt = 1;
+ }
+
+ /* Override next rate if needed for debug purposes */
+ il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx);
+
+ /* Fill next table entry */
+ lq_cmd->rs_table[idx].rate_n_flags =
+ cpu_to_le32(new_rate);
+ repeat_rate--;
+ idx++;
+ }
+
+ il4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band,
+ &tbl_type, &rate_idx);
+
+ /* Indicate to uCode which entries might be MIMO.
+ * If initial rate was MIMO, this will finally end up
+ * as (IL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */
+ if (is_mimo(tbl_type.lq_type))
+ lq_cmd->general_params.mimo_delimiter = idx;
+
+ /* Get next rate */
+ new_rate =
+ il4965_rs_get_lower_rate(lq_sta, &tbl_type, rate_idx,
+ use_ht_possible);
+
+ /* How many times should we repeat the next rate? */
+ if (is_legacy(tbl_type.lq_type)) {
+ if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
+ ant_toggle_cnt++;
+ else if (il &&
+ il4965_rs_toggle_antenna(valid_tx_ant,
+ &new_rate, &tbl_type))
+ ant_toggle_cnt = 1;
+
+ repeat_rate = IL_NUMBER_TRY;
+ } else {
+ repeat_rate = IL_HT_NUMBER_TRY;
+ }
+
+ /* Don't allow HT rates after next pass.
+ * il4965_rs_get_lower_rate() will change type to LQ_A or LQ_G. */
+ use_ht_possible = 0;
+
+ /* Override next rate if needed for debug purposes */
+ il4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, idx);
+
+ /* Fill next table entry */
+ lq_cmd->rs_table[idx].rate_n_flags = cpu_to_le32(new_rate);
+
+ idx++;
+ repeat_rate--;
+ }
+
+ lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
+ lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
+
+ lq_cmd->agg_params.agg_time_limit =
+ cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
+}
+
+static void *
+il4965_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
+{
+ return hw->priv;
+}
+
+/* rate scale requires free function to be implemented */
+static void
+il4965_rs_free(void *il_rate)
+{
+ return;
+}
+
+static void
+il4965_rs_free_sta(void *il_r, struct ieee80211_sta *sta, void *il_sta)
+{
+ struct il_priv *il __maybe_unused = il_r;
+
+ D_RATE("enter\n");
+ D_RATE("leave\n");
+}
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+static int
+il4965_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+static void
+il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx)
+{
+ struct il_priv *il;
+ u8 valid_tx_ant;
+ u8 ant_sel_tx;
+
+ il = lq_sta->drv;
+ valid_tx_ant = il->hw_params.valid_tx_ant;
+ if (lq_sta->dbg_fixed_rate) {
+ ant_sel_tx =
+ ((lq_sta->
+ dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK) >>
+ RATE_MCS_ANT_POS);
+ if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) {
+ *rate_n_flags = lq_sta->dbg_fixed_rate;
+ D_RATE("Fixed rate ON\n");
+ } else {
+ lq_sta->dbg_fixed_rate = 0;
+ IL_ERR
+ ("Invalid antenna selection 0x%X, Valid is 0x%X\n",
+ ant_sel_tx, valid_tx_ant);
+ D_RATE("Fixed rate OFF\n");
+ }
+ } else {
+ D_RATE("Fixed rate OFF\n");
+ }
+}
+
+static ssize_t
+il4965_rs_sta_dbgfs_scale_table_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_lq_sta *lq_sta = file->private_data;
+ struct il_priv *il;
+ char buf[64];
+ size_t buf_size;
+ u32 parsed_rate;
+ struct il_station_priv *sta_priv =
+ container_of(lq_sta, struct il_station_priv, lq_sta);
+ struct il_rxon_context *ctx = sta_priv->common.ctx;
+
+ il = lq_sta->drv;
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ if (sscanf(buf, "%x", &parsed_rate) == 1)
+ lq_sta->dbg_fixed_rate = parsed_rate;
+ else
+ lq_sta->dbg_fixed_rate = 0;
+
+ lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
+ lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+ lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
+
+ D_RATE("sta_id %d rate 0x%X\n", lq_sta->lq.sta_id,
+ lq_sta->dbg_fixed_rate);
+
+ if (lq_sta->dbg_fixed_rate) {
+ il4965_rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
+ il_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC, false);
+ }
+
+ return count;
+}
+
+static ssize_t
+il4965_rs_sta_dbgfs_scale_table_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buff;
+ int desc = 0;
+ int i = 0;
+ int idx = 0;
+ ssize_t ret;
+
+ struct il_lq_sta *lq_sta = file->private_data;
+ struct il_priv *il;
+ struct il_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
+
+ il = lq_sta->drv;
+ buff = kmalloc(1024, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
+ desc += sprintf(buff + desc, "sta_id %d\n", lq_sta->lq.sta_id);
+ desc +=
+ sprintf(buff + desc, "failed=%d success=%d rate=0%X\n",
+ lq_sta->total_failed, lq_sta->total_success,
+ lq_sta->active_legacy_rate);
+ desc +=
+ sprintf(buff + desc, "fixed rate 0x%X\n", lq_sta->dbg_fixed_rate);
+ desc +=
+ sprintf(buff + desc, "valid_tx_ant %s%s%s\n",
+ (il->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
+ (il->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",
+ (il->hw_params.valid_tx_ant & ANT_C) ? "ANT_C" : "");
+ desc +=
+ sprintf(buff + desc, "lq type %s\n",
+ (is_legacy(tbl->lq_type)) ? "legacy" : "HT");
+ if (is_Ht(tbl->lq_type)) {
+ desc +=
+ sprintf(buff + desc, " %s",
+ (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2");
+ desc +=
+ sprintf(buff + desc, " %s",
+ (tbl->is_ht40) ? "40MHz" : "20MHz");
+ desc +=
+ sprintf(buff + desc, " %s %s %s\n",
+ (tbl->is_SGI) ? "SGI" : "",
+ (lq_sta->is_green) ? "GF enabled" : "",
+ (lq_sta->is_agg) ? "AGG on" : "");
+ }
+ desc +=
+ sprintf(buff + desc, "last tx rate=0x%X\n",
+ lq_sta->last_rate_n_flags);
+ desc +=
+ sprintf(buff + desc,
+ "general:" "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
+ lq_sta->lq.general_params.flags,
+ lq_sta->lq.general_params.mimo_delimiter,
+ lq_sta->lq.general_params.single_stream_ant_msk,
+ lq_sta->lq.general_params.dual_stream_ant_msk);
+
+ desc +=
+ sprintf(buff + desc,
+ "agg:"
+ "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n",
+ le16_to_cpu(lq_sta->lq.agg_params.agg_time_limit),
+ lq_sta->lq.agg_params.agg_dis_start_th,
+ lq_sta->lq.agg_params.agg_frame_cnt_limit);
+
+ desc +=
+ sprintf(buff + desc,
+ "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n",
+ lq_sta->lq.general_params.start_rate_idx[0],
+ lq_sta->lq.general_params.start_rate_idx[1],
+ lq_sta->lq.general_params.start_rate_idx[2],
+ lq_sta->lq.general_params.start_rate_idx[3]);
+
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+ idx =
+ il4965_hwrate_to_plcp_idx(le32_to_cpu
+ (lq_sta->lq.rs_table[i].
+ rate_n_flags));
+ if (is_legacy(tbl->lq_type)) {
+ desc +=
+ sprintf(buff + desc, " rate[%d] 0x%X %smbps\n", i,
+ le32_to_cpu(lq_sta->lq.rs_table[i].
+ rate_n_flags),
+ il_rate_mcs[idx].mbps);
+ } else {
+ desc +=
+ sprintf(buff + desc, " rate[%d] 0x%X %smbps (%s)\n",
+ i,
+ le32_to_cpu(lq_sta->lq.rs_table[i].
+ rate_n_flags),
+ il_rate_mcs[idx].mbps,
+ il_rate_mcs[idx].mcs);
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ kfree(buff);
+ return ret;
+}
+
+static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
+ .write = il4965_rs_sta_dbgfs_scale_table_write,
+ .read = il4965_rs_sta_dbgfs_scale_table_read,
+ .open = il4965_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static ssize_t
+il4965_rs_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char *buff;
+ int desc = 0;
+ int i, j;
+ ssize_t ret;
+
+ struct il_lq_sta *lq_sta = file->private_data;
+
+ buff = kmalloc(1024, GFP_KERNEL);
+ if (!buff)
+ return -ENOMEM;
+
+ for (i = 0; i < LQ_SIZE; i++) {
+ desc +=
+ sprintf(buff + desc,
+ "%s type=%d SGI=%d HT40=%d DUP=%d GF=%d\n"
+ "rate=0x%X\n", lq_sta->active_tbl == i ? "*" : "x",
+ lq_sta->lq_info[i].lq_type,
+ lq_sta->lq_info[i].is_SGI,
+ lq_sta->lq_info[i].is_ht40,
+ lq_sta->lq_info[i].is_dup, lq_sta->is_green,
+ lq_sta->lq_info[i].current_rate);
+ for (j = 0; j < RATE_COUNT; j++) {
+ desc +=
+ sprintf(buff + desc,
+ "counter=%d success=%d %%=%d\n",
+ lq_sta->lq_info[i].win[j].counter,
+ lq_sta->lq_info[i].win[j].success_counter,
+ lq_sta->lq_info[i].win[j].success_ratio);
+ }
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+ kfree(buff);
+ return ret;
+}
+
+static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
+ .read = il4965_rs_sta_dbgfs_stats_table_read,
+ .open = il4965_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static ssize_t
+il4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file,
+ char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ char buff[120];
+ int desc = 0;
+ struct il_lq_sta *lq_sta = file->private_data;
+ struct il_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
+
+ if (is_Ht(tbl->lq_type))
+ desc +=
+ sprintf(buff + desc, "Bit Rate= %d Mb/s\n",
+ tbl->expected_tpt[lq_sta->last_txrate_idx]);
+ else
+ desc +=
+ sprintf(buff + desc, "Bit Rate= %d Mb/s\n",
+ il_rates[lq_sta->last_txrate_idx].ieee >> 1);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buff, desc);
+}
+
+static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
+ .read = il4965_rs_sta_dbgfs_rate_scale_data_read,
+ .open = il4965_open_file_generic,
+ .llseek = default_llseek,
+};
+
+static void
+il4965_rs_add_debugfs(void *il, void *il_sta, struct dentry *dir)
+{
+ struct il_lq_sta *lq_sta = il_sta;
+ lq_sta->rs_sta_dbgfs_scale_table_file =
+ debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir,
+ lq_sta, &rs_sta_dbgfs_scale_table_ops);
+ lq_sta->rs_sta_dbgfs_stats_table_file =
+ debugfs_create_file("rate_stats_table", S_IRUSR, dir, lq_sta,
+ &rs_sta_dbgfs_stats_table_ops);
+ lq_sta->rs_sta_dbgfs_rate_scale_data_file =
+ debugfs_create_file("rate_scale_data", S_IRUSR, dir, lq_sta,
+ &rs_sta_dbgfs_rate_scale_data_ops);
+ lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
+ debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir,
+ &lq_sta->tx_agg_tid_en);
+
+}
+
+static void
+il4965_rs_remove_debugfs(void *il, void *il_sta)
+{
+ struct il_lq_sta *lq_sta = il_sta;
+ debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
+ debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
+ debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file);
+ debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
+}
+#endif
+
+/*
+ * Initialization of rate scaling information is done by driver after
+ * the station is added. Since mac80211 calls this function before a
+ * station is added we ignore it.
+ */
+static void
+il4965_rs_rate_init_stub(void *il_r, struct ieee80211_supported_band *sband,
+ struct ieee80211_sta *sta, void *il_sta)
+{
+}
+
+static struct rate_control_ops rs_4965_ops = {
+ .module = NULL,
+ .name = IL4965_RS_NAME,
+ .tx_status = il4965_rs_tx_status,
+ .get_rate = il4965_rs_get_rate,
+ .rate_init = il4965_rs_rate_init_stub,
+ .alloc = il4965_rs_alloc,
+ .free = il4965_rs_free,
+ .alloc_sta = il4965_rs_alloc_sta,
+ .free_sta = il4965_rs_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = il4965_rs_add_debugfs,
+ .remove_sta_debugfs = il4965_rs_remove_debugfs,
+#endif
+};
+
+int
+il4965_rate_control_register(void)
+{
+ return ieee80211_rate_control_register(&rs_4965_ops);
+}
+
+void
+il4965_rate_control_unregister(void)
+{
+ ieee80211_rate_control_unregister(&rs_4965_ops);
+}
diff --git a/drivers/net/wireless/iwlegacy/4965.c b/drivers/net/wireless/iwlegacy/4965.c
new file mode 100644
index 0000000..84c54dc
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965.c
@@ -0,0 +1,2421 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <net/mac80211.h>
+#include <linux/etherdevice.h>
+#include <asm/unaligned.h>
+
+#include "common.h"
+#include "4965.h"
+
+/**
+ * il_verify_inst_sparse - verify runtime uCode image in card vs. host,
+ * using sample data 100 bytes apart. If these sample points are good,
+ * it's a pretty good bet that everything between them is good, too.
+ */
+static int
+il4965_verify_inst_sparse(struct il_priv *il, __le32 * image, u32 len)
+{
+ u32 val;
+ int ret = 0;
+ u32 errcnt = 0;
+ u32 i;
+
+ D_INFO("ucode inst image size is %u\n", len);
+
+ for (i = 0; i < len; i += 100, image += 100 / sizeof(u32)) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IL_DL_IO is set */
+ il_wr(il, HBUS_TARG_MEM_RADDR, i + IL4965_RTC_INST_LOWER_BOUND);
+ val = _il_rd(il, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ ret = -EIO;
+ errcnt++;
+ if (errcnt >= 3)
+ break;
+ }
+ }
+
+ return ret;
+}
+
+/**
+ * il4965_verify_inst_full - verify runtime uCode image in card vs. host,
+ * looking at all data.
+ */
+static int
+il4965_verify_inst_full(struct il_priv *il, __le32 * image, u32 len)
+{
+ u32 val;
+ u32 save_len = len;
+ int ret = 0;
+ u32 errcnt;
+
+ D_INFO("ucode inst image size is %u\n", len);
+
+ il_wr(il, HBUS_TARG_MEM_RADDR, IL4965_RTC_INST_LOWER_BOUND);
+
+ errcnt = 0;
+ for (; len > 0; len -= sizeof(u32), image++) {
+ /* read data comes through single port, auto-incr addr */
+ /* NOTE: Use the debugless read so we don't flood kernel log
+ * if IL_DL_IO is set */
+ val = _il_rd(il, HBUS_TARG_MEM_RDAT);
+ if (val != le32_to_cpu(*image)) {
+ IL_ERR("uCode INST section is invalid at "
+ "offset 0x%x, is 0x%x, s/b 0x%x\n",
+ save_len - len, val, le32_to_cpu(*image));
+ ret = -EIO;
+ errcnt++;
+ if (errcnt >= 20)
+ break;
+ }
+ }
+
+ if (!errcnt)
+ D_INFO("ucode image in INSTRUCTION memory is good\n");
+
+ return ret;
+}
+
+/**
+ * il4965_verify_ucode - determine which instruction image is in SRAM,
+ * and verify its contents
+ */
+int
+il4965_verify_ucode(struct il_priv *il)
+{
+ __le32 *image;
+ u32 len;
+ int ret;
+
+ /* Try bootstrap */
+ image = (__le32 *) il->ucode_boot.v_addr;
+ len = il->ucode_boot.len;
+ ret = il4965_verify_inst_sparse(il, image, len);
+ if (!ret) {
+ D_INFO("Bootstrap uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try initialize */
+ image = (__le32 *) il->ucode_init.v_addr;
+ len = il->ucode_init.len;
+ ret = il4965_verify_inst_sparse(il, image, len);
+ if (!ret) {
+ D_INFO("Initialize uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ /* Try runtime/protocol */
+ image = (__le32 *) il->ucode_code.v_addr;
+ len = il->ucode_code.len;
+ ret = il4965_verify_inst_sparse(il, image, len);
+ if (!ret) {
+ D_INFO("Runtime uCode is good in inst SRAM\n");
+ return 0;
+ }
+
+ IL_ERR("NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
+
+ /* Since nothing seems to match, show first several data entries in
+ * instruction SRAM, so maybe visual inspection will give a clue.
+ * Selection of bootstrap image (vs. other images) is arbitrary. */
+ image = (__le32 *) il->ucode_boot.v_addr;
+ len = il->ucode_boot.len;
+ ret = il4965_verify_inst_full(il, image, len);
+
+ return ret;
+}
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+******************************************************************************/
+
+/*
+ * The device's EEPROM semaphore prevents conflicts between driver and uCode
+ * when accessing the EEPROM; each access is a series of pulses to/from the
+ * EEPROM chip, not a single event, so even reads could conflict if they
+ * weren't arbitrated by the semaphore.
+ */
+int
+il4965_eeprom_acquire_semaphore(struct il_priv *il)
+{
+ u16 count;
+ int ret;
+
+ for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
+ /* Request semaphore */
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
+
+ /* See if we got it */
+ ret =
+ _il_poll_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
+ EEPROM_SEM_TIMEOUT);
+ if (ret >= 0)
+ return ret;
+ }
+
+ return ret;
+}
+
+void
+il4965_eeprom_release_semaphore(struct il_priv *il)
+{
+ il_clear_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
+
+}
+
+int
+il4965_eeprom_check_version(struct il_priv *il)
+{
+ u16 eeprom_ver;
+ u16 calib_ver;
+
+ eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION);
+ calib_ver = il_eeprom_query16(il, EEPROM_4965_CALIB_VERSION_OFFSET);
+
+ if (eeprom_ver < il->cfg->eeprom_ver ||
+ calib_ver < il->cfg->eeprom_calib_ver)
+ goto err;
+
+ IL_INFO("device EEPROM VER=0x%x, CALIB=0x%x\n", eeprom_ver, calib_ver);
+
+ return 0;
+err:
+ IL_ERR("Unsupported (too old) EEPROM VER=0x%x < 0x%x "
+ "CALIB=0x%x < 0x%x\n", eeprom_ver, il->cfg->eeprom_ver,
+ calib_ver, il->cfg->eeprom_calib_ver);
+ return -EINVAL;
+
+}
+
+void
+il4965_eeprom_get_mac(const struct il_priv *il, u8 * mac)
+{
+ const u8 *addr = il_eeprom_query_addr(il,
+ EEPROM_MAC_ADDRESS);
+ memcpy(mac, addr, ETH_ALEN);
+}
+
+/* Send led command */
+static int
+il4965_send_led_cmd(struct il_priv *il, struct il_led_cmd *led_cmd)
+{
+ struct il_host_cmd cmd = {
+ .id = C_LEDS,
+ .len = sizeof(struct il_led_cmd),
+ .data = led_cmd,
+ .flags = CMD_ASYNC,
+ .callback = NULL,
+ };
+ u32 reg;
+
+ reg = _il_rd(il, CSR_LED_REG);
+ if (reg != (reg & CSR_LED_BSM_CTRL_MSK))
+ _il_wr(il, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK);
+
+ return il_send_cmd(il, &cmd);
+}
+
+/* Set led register off */
+void
+il4965_led_enable(struct il_priv *il)
+{
+ _il_wr(il, CSR_LED_REG, CSR_LED_REG_TRUN_ON);
+}
+
+const struct il_led_ops il4965_led_ops = {
+ .cmd = il4965_send_led_cmd,
+};
+
+static int il4965_send_tx_power(struct il_priv *il);
+static int il4965_hw_get_temperature(struct il_priv *il);
+
+/* Highest firmware API version supported */
+#define IL4965_UCODE_API_MAX 2
+
+/* Lowest firmware API version supported */
+#define IL4965_UCODE_API_MIN 2
+
+#define IL4965_FW_PRE "iwlwifi-4965-"
+#define _IL4965_MODULE_FIRMWARE(api) IL4965_FW_PRE #api ".ucode"
+#define IL4965_MODULE_FIRMWARE(api) _IL4965_MODULE_FIRMWARE(api)
+
+/* check contents of special bootstrap uCode SRAM */
+static int
+il4965_verify_bsm(struct il_priv *il)
+{
+ __le32 *image = il->ucode_boot.v_addr;
+ u32 len = il->ucode_boot.len;
+ u32 reg;
+ u32 val;
+
+ D_INFO("Begin verify bsm\n");
+
+ /* verify BSM SRAM contents */
+ val = il_rd_prph(il, BSM_WR_DWCOUNT_REG);
+ for (reg = BSM_SRAM_LOWER_BOUND; reg < BSM_SRAM_LOWER_BOUND + len;
+ reg += sizeof(u32), image++) {
+ val = il_rd_prph(il, reg);
+ if (val != le32_to_cpu(*image)) {
+ IL_ERR("BSM uCode verification failed at "
+ "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
+ BSM_SRAM_LOWER_BOUND, reg - BSM_SRAM_LOWER_BOUND,
+ len, val, le32_to_cpu(*image));
+ return -EIO;
+ }
+ }
+
+ D_INFO("BSM bootstrap uCode image OK\n");
+
+ return 0;
+}
+
+/**
+ * il4965_load_bsm - Load bootstrap instructions
+ *
+ * BSM operation:
+ *
+ * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
+ * in special SRAM that does not power down during RFKILL. When powering back
+ * up after power-saving sleeps (or during initial uCode load), the BSM loads
+ * the bootstrap program into the on-board processor, and starts it.
+ *
+ * The bootstrap program loads (via DMA) instructions and data for a new
+ * program from host DRAM locations indicated by the host driver in the
+ * BSM_DRAM_* registers. Once the new program is loaded, it starts
+ * automatically.
+ *
+ * When initializing the NIC, the host driver points the BSM to the
+ * "initialize" uCode image. This uCode sets up some internal data, then
+ * notifies host via "initialize alive" that it is complete.
+ *
+ * The host then replaces the BSM_DRAM_* pointer values to point to the
+ * normal runtime uCode instructions and a backup uCode data cache buffer
+ * (filled initially with starting data values for the on-board processor),
+ * then triggers the "initialize" uCode to load and launch the runtime uCode,
+ * which begins normal operation.
+ *
+ * When doing a power-save shutdown, runtime uCode saves data SRAM into
+ * the backup data cache in DRAM before SRAM is powered down.
+ *
+ * When powering back up, the BSM loads the bootstrap program. This reloads
+ * the runtime uCode instructions and the backup data cache into SRAM,
+ * and re-launches the runtime uCode from where it left off.
+ */
+static int
+il4965_load_bsm(struct il_priv *il)
+{
+ __le32 *image = il->ucode_boot.v_addr;
+ u32 len = il->ucode_boot.len;
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ u32 inst_len;
+ u32 data_len;
+ int i;
+ u32 done;
+ u32 reg_offset;
+ int ret;
+
+ D_INFO("Begin load bsm\n");
+
+ il->ucode_type = UCODE_RT;
+
+ /* make sure bootstrap program is no larger than BSM's SRAM size */
+ if (len > IL49_MAX_BSM_SIZE)
+ return -EINVAL;
+
+ /* Tell bootstrap uCode where to find the "Initialize" uCode
+ * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
+ * NOTE: il_init_alive_start() will replace these values,
+ * after the "initialize" uCode has run, to point to
+ * runtime/protocol instructions and backup data cache.
+ */
+ pinst = il->ucode_init.p_addr >> 4;
+ pdata = il->ucode_init_data.p_addr >> 4;
+ inst_len = il->ucode_init.len;
+ data_len = il->ucode_init_data.len;
+
+ il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
+ il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
+ il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
+ il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
+
+ /* Fill BSM memory with bootstrap instructions */
+ for (reg_offset = BSM_SRAM_LOWER_BOUND;
+ reg_offset < BSM_SRAM_LOWER_BOUND + len;
+ reg_offset += sizeof(u32), image++)
+ _il_wr_prph(il, reg_offset, le32_to_cpu(*image));
+
+ ret = il4965_verify_bsm(il);
+ if (ret)
+ return ret;
+
+ /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
+ il_wr_prph(il, BSM_WR_MEM_SRC_REG, 0x0);
+ il_wr_prph(il, BSM_WR_MEM_DST_REG, IL49_RTC_INST_LOWER_BOUND);
+ il_wr_prph(il, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
+
+ /* Load bootstrap code into instruction SRAM now,
+ * to prepare to load "initialize" uCode */
+ il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START);
+
+ /* Wait for load of bootstrap uCode to finish */
+ for (i = 0; i < 100; i++) {
+ done = il_rd_prph(il, BSM_WR_CTRL_REG);
+ if (!(done & BSM_WR_CTRL_REG_BIT_START))
+ break;
+ udelay(10);
+ }
+ if (i < 100)
+ D_INFO("BSM write complete, poll %d iterations\n", i);
+ else {
+ IL_ERR("BSM write did not complete!\n");
+ return -EIO;
+ }
+
+ /* Enable future boot loads whenever power management unit triggers it
+ * (e.g. when powering back up after power-save shutdown) */
+ il_wr_prph(il, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN);
+
+ return 0;
+}
+
+/**
+ * il4965_set_ucode_ptrs - Set uCode address location
+ *
+ * Tell initialization uCode where to find runtime uCode.
+ *
+ * BSM registers initially contain pointers to initialization uCode.
+ * We need to replace them to load runtime uCode inst and data,
+ * and to save runtime data when powering down.
+ */
+static int
+il4965_set_ucode_ptrs(struct il_priv *il)
+{
+ dma_addr_t pinst;
+ dma_addr_t pdata;
+ int ret = 0;
+
+ /* bits 35:4 for 4965 */
+ pinst = il->ucode_code.p_addr >> 4;
+ pdata = il->ucode_data_backup.p_addr >> 4;
+
+ /* Tell bootstrap uCode where to find image to load */
+ il_wr_prph(il, BSM_DRAM_INST_PTR_REG, pinst);
+ il_wr_prph(il, BSM_DRAM_DATA_PTR_REG, pdata);
+ il_wr_prph(il, BSM_DRAM_DATA_BYTECOUNT_REG, il->ucode_data.len);
+
+ /* Inst byte count must be last to set up, bit 31 signals uCode
+ * that all new ptr/size info is in place */
+ il_wr_prph(il, BSM_DRAM_INST_BYTECOUNT_REG,
+ il->ucode_code.len | BSM_DRAM_INST_LOAD);
+ D_INFO("Runtime uCode pointers are set.\n");
+
+ return ret;
+}
+
+/**
+ * il4965_init_alive_start - Called after N_ALIVE notification received
+ *
+ * Called after N_ALIVE notification received from "initialize" uCode.
+ *
+ * The 4965 "initialize" ALIVE reply contains calibration data for:
+ * Voltage, temperature, and MIMO tx gain correction, now stored in il
+ * (3945 does not contain this data).
+ *
+ * Tell "initialize" uCode to go ahead and load the runtime uCode.
+*/
+static void
+il4965_init_alive_start(struct il_priv *il)
+{
+ /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
+ * This is a paranoid check, because we would not have gotten the
+ * "initialize" alive if code weren't properly loaded. */
+ if (il4965_verify_ucode(il)) {
+ /* Runtime instruction load was bad;
+ * take it all the way back down so we can try again */
+ D_INFO("Bad \"initialize\" uCode load.\n");
+ goto restart;
+ }
+
+ /* Calculate temperature */
+ il->temperature = il4965_hw_get_temperature(il);
+
+ /* Send pointers to protocol/runtime uCode image ... init code will
+ * load and launch runtime uCode, which will send us another "Alive"
+ * notification. */
+ D_INFO("Initialization Alive received.\n");
+ if (il4965_set_ucode_ptrs(il)) {
+ /* Runtime instruction load won't happen;
+ * take it all the way back down so we can try again */
+ D_INFO("Couldn't set up uCode pointers.\n");
+ goto restart;
+ }
+ return;
+
+restart:
+ queue_work(il->workqueue, &il->restart);
+}
+
+static bool
+iw4965_is_ht40_channel(__le32 rxon_flags)
+{
+ int chan_mod =
+ le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK) >>
+ RXON_FLG_CHANNEL_MODE_POS;
+ return (chan_mod == CHANNEL_MODE_PURE_40 ||
+ chan_mod == CHANNEL_MODE_MIXED);
+}
+
+static void
+il4965_nic_config(struct il_priv *il)
+{
+ unsigned long flags;
+ u16 radio_cfg;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ radio_cfg = il_eeprom_query16(il, EEPROM_RADIO_CONFIG);
+
+ /* write radio config values to register */
+ if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX)
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
+ EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
+ EEPROM_RF_CFG_DASH_MSK(radio_cfg));
+
+ /* set CSR_HW_CONFIG_REG for uCode use */
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
+ CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
+
+ il->calib_info =
+ (struct il_eeprom_calib_info *)
+ il_eeprom_query_addr(il, EEPROM_4965_CALIB_TXPOWER_OFFSET);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+}
+
+/* Reset differential Rx gains in NIC to prepare for chain noise calibration.
+ * Called after every association, but this runs only once!
+ * ... once chain noise is calibrated the first time, it's good forever. */
+static void
+il4965_chain_noise_reset(struct il_priv *il)
+{
+ struct il_chain_noise_data *data = &(il->chain_noise_data);
+
+ if (data->state == IL_CHAIN_NOISE_ALIVE && il_is_any_associated(il)) {
+ struct il_calib_diff_gain_cmd cmd;
+
+ /* clear data for chain noise calibration algorithm */
+ data->chain_noise_a = 0;
+ data->chain_noise_b = 0;
+ data->chain_noise_c = 0;
+ data->chain_signal_a = 0;
+ data->chain_signal_b = 0;
+ data->chain_signal_c = 0;
+ data->beacon_count = 0;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.hdr.op_code = IL_PHY_CALIBRATE_DIFF_GAIN_CMD;
+ cmd.diff_gain_a = 0;
+ cmd.diff_gain_b = 0;
+ cmd.diff_gain_c = 0;
+ if (il_send_cmd_pdu(il, C_PHY_CALIBRATION, sizeof(cmd), &cmd))
+ IL_ERR("Could not send C_PHY_CALIBRATION\n");
+ data->state = IL_CHAIN_NOISE_ACCUMULATE;
+ D_CALIB("Run chain_noise_calibrate\n");
+ }
+}
+
+static struct il_sensitivity_ranges il4965_sensitivity = {
+ .min_nrg_cck = 97,
+ .max_nrg_cck = 0, /* not used, set to 0 */
+
+ .auto_corr_min_ofdm = 85,
+ .auto_corr_min_ofdm_mrc = 170,
+ .auto_corr_min_ofdm_x1 = 105,
+ .auto_corr_min_ofdm_mrc_x1 = 220,
+
+ .auto_corr_max_ofdm = 120,
+ .auto_corr_max_ofdm_mrc = 210,
+ .auto_corr_max_ofdm_x1 = 140,
+ .auto_corr_max_ofdm_mrc_x1 = 270,
+
+ .auto_corr_min_cck = 125,
+ .auto_corr_max_cck = 200,
+ .auto_corr_min_cck_mrc = 200,
+ .auto_corr_max_cck_mrc = 400,
+
+ .nrg_th_cck = 100,
+ .nrg_th_ofdm = 100,
+
+ .barker_corr_th_min = 190,
+ .barker_corr_th_min_mrc = 390,
+ .nrg_th_cca = 62,
+};
+
+static void
+il4965_set_ct_threshold(struct il_priv *il)
+{
+ /* want Kelvin */
+ il->hw_params.ct_kill_threshold =
+ CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
+}
+
+/**
+ * il4965_hw_set_hw_params
+ *
+ * Called when initializing driver
+ */
+static int
+il4965_hw_set_hw_params(struct il_priv *il)
+{
+ if (il->cfg->mod_params->num_of_queues >= IL_MIN_NUM_QUEUES &&
+ il->cfg->mod_params->num_of_queues <= IL49_NUM_QUEUES)
+ il->cfg->base_params->num_of_queues =
+ il->cfg->mod_params->num_of_queues;
+
+ il->hw_params.max_txq_num = il->cfg->base_params->num_of_queues;
+ il->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM;
+ il->hw_params.scd_bc_tbls_size =
+ il->cfg->base_params->num_of_queues *
+ sizeof(struct il4965_scd_bc_tbl);
+ il->hw_params.tfd_size = sizeof(struct il_tfd);
+ il->hw_params.max_stations = IL4965_STATION_COUNT;
+ il->ctx.bcast_sta_id = IL4965_BROADCAST_ID;
+ il->hw_params.max_data_size = IL49_RTC_DATA_SIZE;
+ il->hw_params.max_inst_size = IL49_RTC_INST_SIZE;
+ il->hw_params.max_bsm_size = BSM_SRAM_SIZE;
+ il->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ);
+
+ il->hw_params.rx_wrt_ptr_reg = FH49_RSCSR_CHNL0_WPTR;
+
+ il->hw_params.tx_chains_num = il4965_num_of_ant(il->cfg->valid_tx_ant);
+ il->hw_params.rx_chains_num = il4965_num_of_ant(il->cfg->valid_rx_ant);
+ il->hw_params.valid_tx_ant = il->cfg->valid_tx_ant;
+ il->hw_params.valid_rx_ant = il->cfg->valid_rx_ant;
+
+ il4965_set_ct_threshold(il);
+
+ il->hw_params.sens = &il4965_sensitivity;
+ il->hw_params.beacon_time_tsf_bits = IL4965_EXT_BEACON_TIME_POS;
+
+ return 0;
+}
+
+static s32
+il4965_math_div_round(s32 num, s32 denom, s32 * res)
+{
+ s32 sign = 1;
+
+ if (num < 0) {
+ sign = -sign;
+ num = -num;
+ }
+ if (denom < 0) {
+ sign = -sign;
+ denom = -denom;
+ }
+ *res = 1;
+ *res = ((num * 2 + denom) / (denom * 2)) * sign;
+
+ return 1;
+}
+
+/**
+ * il4965_get_voltage_compensation - Power supply voltage comp for txpower
+ *
+ * Determines power supply voltage compensation for txpower calculations.
+ * Returns number of 1/2-dB steps to subtract from gain table idx,
+ * to compensate for difference between power supply voltage during
+ * factory measurements, vs. current power supply voltage.
+ *
+ * Voltage indication is higher for lower voltage.
+ * Lower voltage requires more gain (lower gain table idx).
+ */
+static s32
+il4965_get_voltage_compensation(s32 eeprom_voltage, s32 current_voltage)
+{
+ s32 comp = 0;
+
+ if (TX_POWER_IL_ILLEGAL_VOLTAGE == eeprom_voltage ||
+ TX_POWER_IL_ILLEGAL_VOLTAGE == current_voltage)
+ return 0;
+
+ il4965_math_div_round(current_voltage - eeprom_voltage,
+ TX_POWER_IL_VOLTAGE_CODES_PER_03V, &comp);
+
+ if (current_voltage > eeprom_voltage)
+ comp *= 2;
+ if ((comp < -2) || (comp > 2))
+ comp = 0;
+
+ return comp;
+}
+
+static s32
+il4965_get_tx_atten_grp(u16 channel)
+{
+ if (channel >= CALIB_IL_TX_ATTEN_GR5_FCH &&
+ channel <= CALIB_IL_TX_ATTEN_GR5_LCH)
+ return CALIB_CH_GROUP_5;
+
+ if (channel >= CALIB_IL_TX_ATTEN_GR1_FCH &&
+ channel <= CALIB_IL_TX_ATTEN_GR1_LCH)
+ return CALIB_CH_GROUP_1;
+
+ if (channel >= CALIB_IL_TX_ATTEN_GR2_FCH &&
+ channel <= CALIB_IL_TX_ATTEN_GR2_LCH)
+ return CALIB_CH_GROUP_2;
+
+ if (channel >= CALIB_IL_TX_ATTEN_GR3_FCH &&
+ channel <= CALIB_IL_TX_ATTEN_GR3_LCH)
+ return CALIB_CH_GROUP_3;
+
+ if (channel >= CALIB_IL_TX_ATTEN_GR4_FCH &&
+ channel <= CALIB_IL_TX_ATTEN_GR4_LCH)
+ return CALIB_CH_GROUP_4;
+
+ return -EINVAL;
+}
+
+static u32
+il4965_get_sub_band(const struct il_priv *il, u32 channel)
+{
+ s32 b = -1;
+
+ for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) {
+ if (il->calib_info->band_info[b].ch_from == 0)
+ continue;
+
+ if (channel >= il->calib_info->band_info[b].ch_from &&
+ channel <= il->calib_info->band_info[b].ch_to)
+ break;
+ }
+
+ return b;
+}
+
+static s32
+il4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
+{
+ s32 val;
+
+ if (x2 == x1)
+ return y1;
+ else {
+ il4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val);
+ return val + y2;
+ }
+}
+
+/**
+ * il4965_interpolate_chan - Interpolate factory measurements for one channel
+ *
+ * Interpolates factory measurements from the two sample channels within a
+ * sub-band, to apply to channel of interest. Interpolation is proportional to
+ * differences in channel frequencies, which is proportional to differences
+ * in channel number.
+ */
+static int
+il4965_interpolate_chan(struct il_priv *il, u32 channel,
+ struct il_eeprom_calib_ch_info *chan_info)
+{
+ s32 s = -1;
+ u32 c;
+ u32 m;
+ const struct il_eeprom_calib_measure *m1;
+ const struct il_eeprom_calib_measure *m2;
+ struct il_eeprom_calib_measure *omeas;
+ u32 ch_i1;
+ u32 ch_i2;
+
+ s = il4965_get_sub_band(il, channel);
+ if (s >= EEPROM_TX_POWER_BANDS) {
+ IL_ERR("Tx Power can not find channel %d\n", channel);
+ return -1;
+ }
+
+ ch_i1 = il->calib_info->band_info[s].ch1.ch_num;
+ ch_i2 = il->calib_info->band_info[s].ch2.ch_num;
+ chan_info->ch_num = (u8) channel;
+
+ D_TXPOWER("channel %d subband %d factory cal ch %d & %d\n", channel, s,
+ ch_i1, ch_i2);
+
+ for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) {
+ for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) {
+ m1 = &(il->calib_info->band_info[s].ch1.
+ measurements[c][m]);
+ m2 = &(il->calib_info->band_info[s].ch2.
+ measurements[c][m]);
+ omeas = &(chan_info->measurements[c][m]);
+
+ omeas->actual_pow =
+ (u8) il4965_interpolate_value(channel, ch_i1,
+ m1->actual_pow, ch_i2,
+ m2->actual_pow);
+ omeas->gain_idx =
+ (u8) il4965_interpolate_value(channel, ch_i1,
+ m1->gain_idx, ch_i2,
+ m2->gain_idx);
+ omeas->temperature =
+ (u8) il4965_interpolate_value(channel, ch_i1,
+ m1->temperature,
+ ch_i2,
+ m2->temperature);
+ omeas->pa_det =
+ (s8) il4965_interpolate_value(channel, ch_i1,
+ m1->pa_det, ch_i2,
+ m2->pa_det);
+
+ D_TXPOWER("chain %d meas %d AP1=%d AP2=%d AP=%d\n", c,
+ m, m1->actual_pow, m2->actual_pow,
+ omeas->actual_pow);
+ D_TXPOWER("chain %d meas %d NI1=%d NI2=%d NI=%d\n", c,
+ m, m1->gain_idx, m2->gain_idx,
+ omeas->gain_idx);
+ D_TXPOWER("chain %d meas %d PA1=%d PA2=%d PA=%d\n", c,
+ m, m1->pa_det, m2->pa_det, omeas->pa_det);
+ D_TXPOWER("chain %d meas %d T1=%d T2=%d T=%d\n", c,
+ m, m1->temperature, m2->temperature,
+ omeas->temperature);
+ }
+ }
+
+ return 0;
+}
+
+/* bit-rate-dependent table to prevent Tx distortion, in half-dB units,
+ * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */
+static s32 back_off_table[] = {
+ 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */
+ 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */
+ 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */
+ 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */
+ 10 /* CCK */
+};
+
+/* Thermal compensation values for txpower for various frequency ranges ...
+ * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */
+static struct il4965_txpower_comp_entry {
+ s32 degrees_per_05db_a;
+ s32 degrees_per_05db_a_denom;
+} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = {
+ {
+ 9, 2}, /* group 0 5.2, ch 34-43 */
+ {
+ 4, 1}, /* group 1 5.2, ch 44-70 */
+ {
+ 4, 1}, /* group 2 5.2, ch 71-124 */
+ {
+ 4, 1}, /* group 3 5.2, ch 125-200 */
+ {
+ 3, 1} /* group 4 2.4, ch all */
+};
+
+static s32
+get_min_power_idx(s32 rate_power_idx, u32 band)
+{
+ if (!band) {
+ if ((rate_power_idx & 7) <= 4)
+ return MIN_TX_GAIN_IDX_52GHZ_EXT;
+ }
+ return MIN_TX_GAIN_IDX;
+}
+
+struct gain_entry {
+ u8 dsp;
+ u8 radio;
+};
+
+static const struct gain_entry gain_table[2][108] = {
+ /* 5.2GHz power gain idx table */
+ {
+ {123, 0x3F}, /* highest txpower */
+ {117, 0x3F},
+ {110, 0x3F},
+ {104, 0x3F},
+ {98, 0x3F},
+ {110, 0x3E},
+ {104, 0x3E},
+ {98, 0x3E},
+ {110, 0x3D},
+ {104, 0x3D},
+ {98, 0x3D},
+ {110, 0x3C},
+ {104, 0x3C},
+ {98, 0x3C},
+ {110, 0x3B},
+ {104, 0x3B},
+ {98, 0x3B},
+ {110, 0x3A},
+ {104, 0x3A},
+ {98, 0x3A},
+ {110, 0x39},
+ {104, 0x39},
+ {98, 0x39},
+ {110, 0x38},
+ {104, 0x38},
+ {98, 0x38},
+ {110, 0x37},
+ {104, 0x37},
+ {98, 0x37},
+ {110, 0x36},
+ {104, 0x36},
+ {98, 0x36},
+ {110, 0x35},
+ {104, 0x35},
+ {98, 0x35},
+ {110, 0x34},
+ {104, 0x34},
+ {98, 0x34},
+ {110, 0x33},
+ {104, 0x33},
+ {98, 0x33},
+ {110, 0x32},
+ {104, 0x32},
+ {98, 0x32},
+ {110, 0x31},
+ {104, 0x31},
+ {98, 0x31},
+ {110, 0x30},
+ {104, 0x30},
+ {98, 0x30},
+ {110, 0x25},
+ {104, 0x25},
+ {98, 0x25},
+ {110, 0x24},
+ {104, 0x24},
+ {98, 0x24},
+ {110, 0x23},
+ {104, 0x23},
+ {98, 0x23},
+ {110, 0x22},
+ {104, 0x18},
+ {98, 0x18},
+ {110, 0x17},
+ {104, 0x17},
+ {98, 0x17},
+ {110, 0x16},
+ {104, 0x16},
+ {98, 0x16},
+ {110, 0x15},
+ {104, 0x15},
+ {98, 0x15},
+ {110, 0x14},
+ {104, 0x14},
+ {98, 0x14},
+ {110, 0x13},
+ {104, 0x13},
+ {98, 0x13},
+ {110, 0x12},
+ {104, 0x08},
+ {98, 0x08},
+ {110, 0x07},
+ {104, 0x07},
+ {98, 0x07},
+ {110, 0x06},
+ {104, 0x06},
+ {98, 0x06},
+ {110, 0x05},
+ {104, 0x05},
+ {98, 0x05},
+ {110, 0x04},
+ {104, 0x04},
+ {98, 0x04},
+ {110, 0x03},
+ {104, 0x03},
+ {98, 0x03},
+ {110, 0x02},
+ {104, 0x02},
+ {98, 0x02},
+ {110, 0x01},
+ {104, 0x01},
+ {98, 0x01},
+ {110, 0x00},
+ {104, 0x00},
+ {98, 0x00},
+ {93, 0x00},
+ {88, 0x00},
+ {83, 0x00},
+ {78, 0x00},
+ },
+ /* 2.4GHz power gain idx table */
+ {
+ {110, 0x3f}, /* highest txpower */
+ {104, 0x3f},
+ {98, 0x3f},
+ {110, 0x3e},
+ {104, 0x3e},
+ {98, 0x3e},
+ {110, 0x3d},
+ {104, 0x3d},
+ {98, 0x3d},
+ {110, 0x3c},
+ {104, 0x3c},
+ {98, 0x3c},
+ {110, 0x3b},
+ {104, 0x3b},
+ {98, 0x3b},
+ {110, 0x3a},
+ {104, 0x3a},
+ {98, 0x3a},
+ {110, 0x39},
+ {104, 0x39},
+ {98, 0x39},
+ {110, 0x38},
+ {104, 0x38},
+ {98, 0x38},
+ {110, 0x37},
+ {104, 0x37},
+ {98, 0x37},
+ {110, 0x36},
+ {104, 0x36},
+ {98, 0x36},
+ {110, 0x35},
+ {104, 0x35},
+ {98, 0x35},
+ {110, 0x34},
+ {104, 0x34},
+ {98, 0x34},
+ {110, 0x33},
+ {104, 0x33},
+ {98, 0x33},
+ {110, 0x32},
+ {104, 0x32},
+ {98, 0x32},
+ {110, 0x31},
+ {104, 0x31},
+ {98, 0x31},
+ {110, 0x30},
+ {104, 0x30},
+ {98, 0x30},
+ {110, 0x6},
+ {104, 0x6},
+ {98, 0x6},
+ {110, 0x5},
+ {104, 0x5},
+ {98, 0x5},
+ {110, 0x4},
+ {104, 0x4},
+ {98, 0x4},
+ {110, 0x3},
+ {104, 0x3},
+ {98, 0x3},
+ {110, 0x2},
+ {104, 0x2},
+ {98, 0x2},
+ {110, 0x1},
+ {104, 0x1},
+ {98, 0x1},
+ {110, 0x0},
+ {104, 0x0},
+ {98, 0x0},
+ {97, 0},
+ {96, 0},
+ {95, 0},
+ {94, 0},
+ {93, 0},
+ {92, 0},
+ {91, 0},
+ {90, 0},
+ {89, 0},
+ {88, 0},
+ {87, 0},
+ {86, 0},
+ {85, 0},
+ {84, 0},
+ {83, 0},
+ {82, 0},
+ {81, 0},
+ {80, 0},
+ {79, 0},
+ {78, 0},
+ {77, 0},
+ {76, 0},
+ {75, 0},
+ {74, 0},
+ {73, 0},
+ {72, 0},
+ {71, 0},
+ {70, 0},
+ {69, 0},
+ {68, 0},
+ {67, 0},
+ {66, 0},
+ {65, 0},
+ {64, 0},
+ {63, 0},
+ {62, 0},
+ {61, 0},
+ {60, 0},
+ {59, 0},
+ }
+};
+
+static int
+il4965_fill_txpower_tbl(struct il_priv *il, u8 band, u16 channel, u8 is_ht40,
+ u8 ctrl_chan_high,
+ struct il4965_tx_power_db *tx_power_tbl)
+{
+ u8 saturation_power;
+ s32 target_power;
+ s32 user_target_power;
+ s32 power_limit;
+ s32 current_temp;
+ s32 reg_limit;
+ s32 current_regulatory;
+ s32 txatten_grp = CALIB_CH_GROUP_MAX;
+ int i;
+ int c;
+ const struct il_channel_info *ch_info = NULL;
+ struct il_eeprom_calib_ch_info ch_eeprom_info;
+ const struct il_eeprom_calib_measure *measurement;
+ s16 voltage;
+ s32 init_voltage;
+ s32 voltage_compensation;
+ s32 degrees_per_05db_num;
+ s32 degrees_per_05db_denom;
+ s32 factory_temp;
+ s32 temperature_comp[2];
+ s32 factory_gain_idx[2];
+ s32 factory_actual_pwr[2];
+ s32 power_idx;
+
+ /* tx_power_user_lmt is in dBm, convert to half-dBm (half-dB units
+ * are used for idxing into txpower table) */
+ user_target_power = 2 * il->tx_power_user_lmt;
+
+ /* Get current (RXON) channel, band, width */
+ D_TXPOWER("chan %d band %d is_ht40 %d\n", channel, band, is_ht40);
+
+ ch_info = il_get_channel_info(il, il->band, channel);
+
+ if (!il_is_channel_valid(ch_info))
+ return -EINVAL;
+
+ /* get txatten group, used to select 1) thermal txpower adjustment
+ * and 2) mimo txpower balance between Tx chains. */
+ txatten_grp = il4965_get_tx_atten_grp(channel);
+ if (txatten_grp < 0) {
+ IL_ERR("Can't find txatten group for channel %d.\n", channel);
+ return txatten_grp;
+ }
+
+ D_TXPOWER("channel %d belongs to txatten group %d\n", channel,
+ txatten_grp);
+
+ if (is_ht40) {
+ if (ctrl_chan_high)
+ channel -= 2;
+ else
+ channel += 2;
+ }
+
+ /* hardware txpower limits ...
+ * saturation (clipping distortion) txpowers are in half-dBm */
+ if (band)
+ saturation_power = il->calib_info->saturation_power24;
+ else
+ saturation_power = il->calib_info->saturation_power52;
+
+ if (saturation_power < IL_TX_POWER_SATURATION_MIN ||
+ saturation_power > IL_TX_POWER_SATURATION_MAX) {
+ if (band)
+ saturation_power = IL_TX_POWER_DEFAULT_SATURATION_24;
+ else
+ saturation_power = IL_TX_POWER_DEFAULT_SATURATION_52;
+ }
+
+ /* regulatory txpower limits ... reg_limit values are in half-dBm,
+ * max_power_avg values are in dBm, convert * 2 */
+ if (is_ht40)
+ reg_limit = ch_info->ht40_max_power_avg * 2;
+ else
+ reg_limit = ch_info->max_power_avg * 2;
+
+ if ((reg_limit < IL_TX_POWER_REGULATORY_MIN) ||
+ (reg_limit > IL_TX_POWER_REGULATORY_MAX)) {
+ if (band)
+ reg_limit = IL_TX_POWER_DEFAULT_REGULATORY_24;
+ else
+ reg_limit = IL_TX_POWER_DEFAULT_REGULATORY_52;
+ }
+
+ /* Interpolate txpower calibration values for this channel,
+ * based on factory calibration tests on spaced channels. */
+ il4965_interpolate_chan(il, channel, &ch_eeprom_info);
+
+ /* calculate tx gain adjustment based on power supply voltage */
+ voltage = le16_to_cpu(il->calib_info->voltage);
+ init_voltage = (s32) le32_to_cpu(il->card_alive_init.voltage);
+ voltage_compensation =
+ il4965_get_voltage_compensation(voltage, init_voltage);
+
+ D_TXPOWER("curr volt %d eeprom volt %d volt comp %d\n", init_voltage,
+ voltage, voltage_compensation);
+
+ /* get current temperature (Celsius) */
+ current_temp = max(il->temperature, IL_TX_POWER_TEMPERATURE_MIN);
+ current_temp = min(il->temperature, IL_TX_POWER_TEMPERATURE_MAX);
+ current_temp = KELVIN_TO_CELSIUS(current_temp);
+
+ /* select thermal txpower adjustment params, based on channel group
+ * (same frequency group used for mimo txatten adjustment) */
+ degrees_per_05db_num =
+ tx_power_cmp_tble[txatten_grp].degrees_per_05db_a;
+ degrees_per_05db_denom =
+ tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom;
+
+ /* get per-chain txpower values from factory measurements */
+ for (c = 0; c < 2; c++) {
+ measurement = &ch_eeprom_info.measurements[c][1];
+
+ /* txgain adjustment (in half-dB steps) based on difference
+ * between factory and current temperature */
+ factory_temp = measurement->temperature;
+ il4965_math_div_round((current_temp -
+ factory_temp) * degrees_per_05db_denom,
+ degrees_per_05db_num,
+ &temperature_comp[c]);
+
+ factory_gain_idx[c] = measurement->gain_idx;
+ factory_actual_pwr[c] = measurement->actual_pow;
+
+ D_TXPOWER("chain = %d\n", c);
+ D_TXPOWER("fctry tmp %d, " "curr tmp %d, comp %d steps\n",
+ factory_temp, current_temp, temperature_comp[c]);
+
+ D_TXPOWER("fctry idx %d, fctry pwr %d\n", factory_gain_idx[c],
+ factory_actual_pwr[c]);
+ }
+
+ /* for each of 33 bit-rates (including 1 for CCK) */
+ for (i = 0; i < POWER_TBL_NUM_ENTRIES; i++) {
+ u8 is_mimo_rate;
+ union il4965_tx_power_dual_stream tx_power;
+
+ /* for mimo, reduce each chain's txpower by half
+ * (3dB, 6 steps), so total output power is regulatory
+ * compliant. */
+ if (i & 0x8) {
+ current_regulatory =
+ reg_limit -
+ IL_TX_POWER_MIMO_REGULATORY_COMPENSATION;
+ is_mimo_rate = 1;
+ } else {
+ current_regulatory = reg_limit;
+ is_mimo_rate = 0;
+ }
+
+ /* find txpower limit, either hardware or regulatory */
+ power_limit = saturation_power - back_off_table[i];
+ if (power_limit > current_regulatory)
+ power_limit = current_regulatory;
+
+ /* reduce user's txpower request if necessary
+ * for this rate on this channel */
+ target_power = user_target_power;
+ if (target_power > power_limit)
+ target_power = power_limit;
+
+ D_TXPOWER("rate %d sat %d reg %d usr %d tgt %d\n", i,
+ saturation_power - back_off_table[i],
+ current_regulatory, user_target_power, target_power);
+
+ /* for each of 2 Tx chains (radio transmitters) */
+ for (c = 0; c < 2; c++) {
+ s32 atten_value;
+
+ if (is_mimo_rate)
+ atten_value =
+ (s32) le32_to_cpu(il->card_alive_init.
+ tx_atten[txatten_grp][c]);
+ else
+ atten_value = 0;
+
+ /* calculate idx; higher idx means lower txpower */
+ power_idx =
+ (u8) (factory_gain_idx[c] -
+ (target_power - factory_actual_pwr[c]) -
+ temperature_comp[c] - voltage_compensation +
+ atten_value);
+
+/* D_TXPOWER("calculated txpower idx %d\n",
+ power_idx); */
+
+ if (power_idx < get_min_power_idx(i, band))
+ power_idx = get_min_power_idx(i, band);
+
+ /* adjust 5 GHz idx to support negative idxes */
+ if (!band)
+ power_idx += 9;
+
+ /* CCK, rate 32, reduce txpower for CCK */
+ if (i == POWER_TBL_CCK_ENTRY)
+ power_idx +=
+ IL_TX_POWER_CCK_COMPENSATION_C_STEP;
+
+ /* stay within the table! */
+ if (power_idx > 107) {
+ IL_WARN("txpower idx %d > 107\n", power_idx);
+ power_idx = 107;
+ }
+ if (power_idx < 0) {
+ IL_WARN("txpower idx %d < 0\n", power_idx);
+ power_idx = 0;
+ }
+
+ /* fill txpower command for this rate/chain */
+ tx_power.s.radio_tx_gain[c] =
+ gain_table[band][power_idx].radio;
+ tx_power.s.dsp_predis_atten[c] =
+ gain_table[band][power_idx].dsp;
+
+ D_TXPOWER("chain %d mimo %d idx %d "
+ "gain 0x%02x dsp %d\n", c, atten_value,
+ power_idx, tx_power.s.radio_tx_gain[c],
+ tx_power.s.dsp_predis_atten[c]);
+ } /* for each chain */
+
+ tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw);
+
+ } /* for each rate */
+
+ return 0;
+}
+
+/**
+ * il4965_send_tx_power - Configure the TXPOWER level user limit
+ *
+ * Uses the active RXON for channel, band, and characteristics (ht40, high)
+ * The power limit is taken from il->tx_power_user_lmt.
+ */
+static int
+il4965_send_tx_power(struct il_priv *il)
+{
+ struct il4965_txpowertable_cmd cmd = { 0 };
+ int ret;
+ u8 band = 0;
+ bool is_ht40 = false;
+ u8 ctrl_chan_high = 0;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (WARN_ONCE
+ (test_bit(S_SCAN_HW, &il->status),
+ "TX Power requested while scanning!\n"))
+ return -EAGAIN;
+
+ band = il->band == IEEE80211_BAND_2GHZ;
+
+ is_ht40 = iw4965_is_ht40_channel(ctx->active.flags);
+
+ if (is_ht40 && (ctx->active.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+ ctrl_chan_high = 1;
+
+ cmd.band = band;
+ cmd.channel = ctx->active.channel;
+
+ ret =
+ il4965_fill_txpower_tbl(il, band, le16_to_cpu(ctx->active.channel),
+ is_ht40, ctrl_chan_high, &cmd.tx_power);
+ if (ret)
+ goto out;
+
+ ret = il_send_cmd_pdu(il, C_TX_PWR_TBL, sizeof(cmd), &cmd);
+
+out:
+ return ret;
+}
+
+static int
+il4965_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ int ret = 0;
+ struct il4965_rxon_assoc_cmd rxon_assoc;
+ const struct il_rxon_cmd *rxon1 = &ctx->staging;
+ const struct il_rxon_cmd *rxon2 = &ctx->active;
+
+ if (rxon1->flags == rxon2->flags &&
+ rxon1->filter_flags == rxon2->filter_flags &&
+ rxon1->cck_basic_rates == rxon2->cck_basic_rates &&
+ rxon1->ofdm_ht_single_stream_basic_rates ==
+ rxon2->ofdm_ht_single_stream_basic_rates &&
+ rxon1->ofdm_ht_dual_stream_basic_rates ==
+ rxon2->ofdm_ht_dual_stream_basic_rates &&
+ rxon1->rx_chain == rxon2->rx_chain &&
+ rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates) {
+ D_INFO("Using current RXON_ASSOC. Not resending.\n");
+ return 0;
+ }
+
+ rxon_assoc.flags = ctx->staging.flags;
+ rxon_assoc.filter_flags = ctx->staging.filter_flags;
+ rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
+ rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
+ rxon_assoc.reserved = 0;
+ rxon_assoc.ofdm_ht_single_stream_basic_rates =
+ ctx->staging.ofdm_ht_single_stream_basic_rates;
+ rxon_assoc.ofdm_ht_dual_stream_basic_rates =
+ ctx->staging.ofdm_ht_dual_stream_basic_rates;
+ rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
+
+ ret =
+ il_send_cmd_pdu_async(il, C_RXON_ASSOC, sizeof(rxon_assoc),
+ &rxon_assoc, NULL);
+
+ return ret;
+}
+
+static int
+il4965_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ /* cast away the const for active_rxon in this function */
+ struct il_rxon_cmd *active_rxon = (void *)&ctx->active;
+ int ret;
+ bool new_assoc = !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
+
+ if (!il_is_alive(il))
+ return -EBUSY;
+
+ if (!ctx->is_active)
+ return 0;
+
+ /* always get timestamp with Rx frame */
+ ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
+
+ ret = il_check_rxon_cmd(il, ctx);
+ if (ret) {
+ IL_ERR("Invalid RXON configuration. Not committing.\n");
+ return -EINVAL;
+ }
+
+ /*
+ * receive commit_rxon request
+ * abort any previous channel switch if still in process
+ */
+ if (test_bit(S_CHANNEL_SWITCH_PENDING, &il->status) &&
+ il->switch_channel != ctx->staging.channel) {
+ D_11H("abort channel switch on %d\n",
+ le16_to_cpu(il->switch_channel));
+ il_chswitch_done(il, false);
+ }
+
+ /* If we don't need to send a full RXON, we can use
+ * il_rxon_assoc_cmd which is used to reconfigure filter
+ * and other flags for the current radio configuration. */
+ if (!il_full_rxon_required(il, ctx)) {
+ ret = il_send_rxon_assoc(il, ctx);
+ if (ret) {
+ IL_ERR("Error setting RXON_ASSOC (%d)\n", ret);
+ return ret;
+ }
+
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ il_print_rx_config_cmd(il, ctx);
+ /*
+ * We do not commit tx power settings while channel changing,
+ * do it now if tx power changed.
+ */
+ il_set_tx_power(il, il->tx_power_next, false);
+ return 0;
+ }
+
+ /* If we are currently associated and the new config requires
+ * an RXON_ASSOC and the new config wants the associated mask enabled,
+ * we must clear the associated from the active configuration
+ * before we apply the new config */
+ if (il_is_associated_ctx(ctx) && new_assoc) {
+ D_INFO("Toggling associated bit on current RXON\n");
+ active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+
+ ret =
+ il_send_cmd_pdu(il, ctx->rxon_cmd,
+ sizeof(struct il_rxon_cmd), active_rxon);
+
+ /* If the mask clearing failed then we set
+ * active_rxon back to what it was previously */
+ if (ret) {
+ active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
+ IL_ERR("Error clearing ASSOC_MSK (%d)\n", ret);
+ return ret;
+ }
+ il_clear_ucode_stations(il, ctx);
+ il_restore_stations(il, ctx);
+ ret = il4965_restore_default_wep_keys(il, ctx);
+ if (ret) {
+ IL_ERR("Failed to restore WEP keys (%d)\n", ret);
+ return ret;
+ }
+ }
+
+ D_INFO("Sending RXON\n" "* with%s RXON_FILTER_ASSOC_MSK\n"
+ "* channel = %d\n" "* bssid = %pM\n", (new_assoc ? "" : "out"),
+ le16_to_cpu(ctx->staging.channel), ctx->staging.bssid_addr);
+
+ il_set_rxon_hwcrypto(il, ctx, !il->cfg->mod_params->sw_crypto);
+
+ /* Apply the new configuration
+ * RXON unassoc clears the station table in uCode so restoration of
+ * stations is needed after it (the RXON command) completes
+ */
+ if (!new_assoc) {
+ ret =
+ il_send_cmd_pdu(il, ctx->rxon_cmd,
+ sizeof(struct il_rxon_cmd), &ctx->staging);
+ if (ret) {
+ IL_ERR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ D_INFO("Return from !new_assoc RXON.\n");
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ il_clear_ucode_stations(il, ctx);
+ il_restore_stations(il, ctx);
+ ret = il4965_restore_default_wep_keys(il, ctx);
+ if (ret) {
+ IL_ERR("Failed to restore WEP keys (%d)\n", ret);
+ return ret;
+ }
+ }
+ if (new_assoc) {
+ il->start_calib = 0;
+ /* Apply the new configuration
+ * RXON assoc doesn't clear the station table in uCode,
+ */
+ ret =
+ il_send_cmd_pdu(il, ctx->rxon_cmd,
+ sizeof(struct il_rxon_cmd), &ctx->staging);
+ if (ret) {
+ IL_ERR("Error setting new RXON (%d)\n", ret);
+ return ret;
+ }
+ memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
+ }
+ il_print_rx_config_cmd(il, ctx);
+
+ il4965_init_sensitivity(il);
+
+ /* If we issue a new RXON command which required a tune then we must
+ * send a new TXPOWER command or we won't be able to Tx any frames */
+ ret = il_set_tx_power(il, il->tx_power_next, true);
+ if (ret) {
+ IL_ERR("Error sending TX power (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+il4965_hw_channel_switch(struct il_priv *il,
+ struct ieee80211_channel_switch *ch_switch)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ int rc;
+ u8 band = 0;
+ bool is_ht40 = false;
+ u8 ctrl_chan_high = 0;
+ struct il4965_channel_switch_cmd cmd;
+ const struct il_channel_info *ch_info;
+ u32 switch_time_in_usec, ucode_switch_time;
+ u16 ch;
+ u32 tsf_low;
+ u8 switch_count;
+ u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval);
+ struct ieee80211_vif *vif = ctx->vif;
+ band = il->band == IEEE80211_BAND_2GHZ;
+
+ is_ht40 = iw4965_is_ht40_channel(ctx->staging.flags);
+
+ if (is_ht40 && (ctx->staging.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
+ ctrl_chan_high = 1;
+
+ cmd.band = band;
+ cmd.expect_beacon = 0;
+ ch = ch_switch->channel->hw_value;
+ cmd.channel = cpu_to_le16(ch);
+ cmd.rxon_flags = ctx->staging.flags;
+ cmd.rxon_filter_flags = ctx->staging.filter_flags;
+ switch_count = ch_switch->count;
+ tsf_low = ch_switch->timestamp & 0x0ffffffff;
+ /*
+ * calculate the ucode channel switch time
+ * adding TSF as one of the factor for when to switch
+ */
+ if (il->ucode_beacon_time > tsf_low && beacon_interval) {
+ if (switch_count >
+ ((il->ucode_beacon_time - tsf_low) / beacon_interval)) {
+ switch_count -=
+ (il->ucode_beacon_time - tsf_low) / beacon_interval;
+ } else
+ switch_count = 0;
+ }
+ if (switch_count <= 1)
+ cmd.switch_time = cpu_to_le32(il->ucode_beacon_time);
+ else {
+ switch_time_in_usec =
+ vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
+ ucode_switch_time =
+ il_usecs_to_beacons(il, switch_time_in_usec,
+ beacon_interval);
+ cmd.switch_time =
+ il_add_beacon_time(il, il->ucode_beacon_time,
+ ucode_switch_time, beacon_interval);
+ }
+ D_11H("uCode time for the switch is 0x%x\n", cmd.switch_time);
+ ch_info = il_get_channel_info(il, il->band, ch);
+ if (ch_info)
+ cmd.expect_beacon = il_is_channel_radar(ch_info);
+ else {
+ IL_ERR("invalid channel switch from %u to %u\n",
+ ctx->active.channel, ch);
+ return -EFAULT;
+ }
+
+ rc = il4965_fill_txpower_tbl(il, band, ch, is_ht40, ctrl_chan_high,
+ &cmd.tx_power);
+ if (rc) {
+ D_11H("error:%d fill txpower_tbl\n", rc);
+ return rc;
+ }
+
+ return il_send_cmd_pdu(il, C_CHANNEL_SWITCH, sizeof(cmd), &cmd);
+}
+
+/**
+ * il4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
+ */
+static void
+il4965_txq_update_byte_cnt_tbl(struct il_priv *il, struct il_tx_queue *txq,
+ u16 byte_cnt)
+{
+ struct il4965_scd_bc_tbl *scd_bc_tbl = il->scd_bc_tbls.addr;
+ int txq_id = txq->q.id;
+ int write_ptr = txq->q.write_ptr;
+ int len = byte_cnt + IL_TX_CRC_SIZE + IL_TX_DELIMITER_SIZE;
+ __le16 bc_ent;
+
+ WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
+
+ bc_ent = cpu_to_le16(len & 0xFFF);
+ /* Set up byte count within first 256 entries */
+ scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
+
+ /* If within first 64 entries, duplicate at end */
+ if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
+ scd_bc_tbl[txq_id].tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] =
+ bc_ent;
+}
+
+/**
+ * il4965_hw_get_temperature - return the calibrated temperature (in Kelvin)
+ * @stats: Provides the temperature reading from the uCode
+ *
+ * A return of <0 indicates bogus data in the stats
+ */
+static int
+il4965_hw_get_temperature(struct il_priv *il)
+{
+ s32 temperature;
+ s32 vt;
+ s32 R1, R2, R3;
+ u32 R4;
+
+ if (test_bit(S_TEMPERATURE, &il->status) &&
+ (il->_4965.stats.flag & STATS_REPLY_FLG_HT40_MODE_MSK)) {
+ D_TEMP("Running HT40 temperature calibration\n");
+ R1 = (s32) le32_to_cpu(il->card_alive_init.therm_r1[1]);
+ R2 = (s32) le32_to_cpu(il->card_alive_init.therm_r2[1]);
+ R3 = (s32) le32_to_cpu(il->card_alive_init.therm_r3[1]);
+ R4 = le32_to_cpu(il->card_alive_init.therm_r4[1]);
+ } else {
+ D_TEMP("Running temperature calibration\n");
+ R1 = (s32) le32_to_cpu(il->card_alive_init.therm_r1[0]);
+ R2 = (s32) le32_to_cpu(il->card_alive_init.therm_r2[0]);
+ R3 = (s32) le32_to_cpu(il->card_alive_init.therm_r3[0]);
+ R4 = le32_to_cpu(il->card_alive_init.therm_r4[0]);
+ }
+
+ /*
+ * Temperature is only 23 bits, so sign extend out to 32.
+ *
+ * NOTE If we haven't received a stats notification yet
+ * with an updated temperature, use R4 provided to us in the
+ * "initialize" ALIVE response.
+ */
+ if (!test_bit(S_TEMPERATURE, &il->status))
+ vt = sign_extend32(R4, 23);
+ else
+ vt = sign_extend32(le32_to_cpu
+ (il->_4965.stats.general.common.temperature),
+ 23);
+
+ D_TEMP("Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt);
+
+ if (R3 == R1) {
+ IL_ERR("Calibration conflict R1 == R3\n");
+ return -1;
+ }
+
+ /* Calculate temperature in degrees Kelvin, adjust by 97%.
+ * Add offset to center the adjustment around 0 degrees Centigrade. */
+ temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2);
+ temperature /= (R3 - R1);
+ temperature =
+ (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET;
+
+ D_TEMP("Calibrated temperature: %dK, %dC\n", temperature,
+ KELVIN_TO_CELSIUS(temperature));
+
+ return temperature;
+}
+
+/* Adjust Txpower only if temperature variance is greater than threshold. */
+#define IL_TEMPERATURE_THRESHOLD 3
+
+/**
+ * il4965_is_temp_calib_needed - determines if new calibration is needed
+ *
+ * If the temperature changed has changed sufficiently, then a recalibration
+ * is needed.
+ *
+ * Assumes caller will replace il->last_temperature once calibration
+ * executed.
+ */
+static int
+il4965_is_temp_calib_needed(struct il_priv *il)
+{
+ int temp_diff;
+
+ if (!test_bit(S_STATS, &il->status)) {
+ D_TEMP("Temperature not updated -- no stats.\n");
+ return 0;
+ }
+
+ temp_diff = il->temperature - il->last_temperature;
+
+ /* get absolute value */
+ if (temp_diff < 0) {
+ D_POWER("Getting cooler, delta %d\n", temp_diff);
+ temp_diff = -temp_diff;
+ } else if (temp_diff == 0)
+ D_POWER("Temperature unchanged\n");
+ else
+ D_POWER("Getting warmer, delta %d\n", temp_diff);
+
+ if (temp_diff < IL_TEMPERATURE_THRESHOLD) {
+ D_POWER(" => thermal txpower calib not needed\n");
+ return 0;
+ }
+
+ D_POWER(" => thermal txpower calib needed\n");
+
+ return 1;
+}
+
+static void
+il4965_temperature_calib(struct il_priv *il)
+{
+ s32 temp;
+
+ temp = il4965_hw_get_temperature(il);
+ if (IL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(temp))
+ return;
+
+ if (il->temperature != temp) {
+ if (il->temperature)
+ D_TEMP("Temperature changed " "from %dC to %dC\n",
+ KELVIN_TO_CELSIUS(il->temperature),
+ KELVIN_TO_CELSIUS(temp));
+ else
+ D_TEMP("Temperature " "initialized to %dC\n",
+ KELVIN_TO_CELSIUS(temp));
+ }
+
+ il->temperature = temp;
+ set_bit(S_TEMPERATURE, &il->status);
+
+ if (!il->disable_tx_power_cal &&
+ unlikely(!test_bit(S_SCANNING, &il->status)) &&
+ il4965_is_temp_calib_needed(il))
+ queue_work(il->workqueue, &il->txpower_work);
+}
+
+static u16
+il4965_get_hcmd_size(u8 cmd_id, u16 len)
+{
+ switch (cmd_id) {
+ case C_RXON:
+ return (u16) sizeof(struct il4965_rxon_cmd);
+ default:
+ return len;
+ }
+}
+
+static u16
+il4965_build_addsta_hcmd(const struct il_addsta_cmd *cmd, u8 * data)
+{
+ struct il4965_addsta_cmd *addsta = (struct il4965_addsta_cmd *)data;
+ addsta->mode = cmd->mode;
+ memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
+ memcpy(&addsta->key, &cmd->key, sizeof(struct il4965_keyinfo));
+ addsta->station_flags = cmd->station_flags;
+ addsta->station_flags_msk = cmd->station_flags_msk;
+ addsta->tid_disable_tx = cmd->tid_disable_tx;
+ addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
+ addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
+ addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
+ addsta->sleep_tx_count = cmd->sleep_tx_count;
+ addsta->reserved1 = cpu_to_le16(0);
+ addsta->reserved2 = cpu_to_le16(0);
+
+ return (u16) sizeof(struct il4965_addsta_cmd);
+}
+
+static inline u32
+il4965_get_scd_ssn(struct il4965_tx_resp *tx_resp)
+{
+ return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
+}
+
+static inline u32
+il4965_tx_status_to_mac80211(u32 status)
+{
+ status &= TX_STATUS_MSK;
+
+ switch (status) {
+ case TX_STATUS_SUCCESS:
+ case TX_STATUS_DIRECT_DONE:
+ return IEEE80211_TX_STAT_ACK;
+ case TX_STATUS_FAIL_DEST_PS:
+ return IEEE80211_TX_STAT_TX_FILTERED;
+ default:
+ return 0;
+ }
+}
+
+static inline bool
+il4965_is_tx_success(u32 status)
+{
+ status &= TX_STATUS_MSK;
+ return (status == TX_STATUS_SUCCESS || status == TX_STATUS_DIRECT_DONE);
+}
+
+/**
+ * il4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue
+ */
+static int
+il4965_tx_status_reply_tx(struct il_priv *il, struct il_ht_agg *agg,
+ struct il4965_tx_resp *tx_resp, int txq_id,
+ u16 start_idx)
+{
+ u16 status;
+ struct agg_tx_status *frame_status = tx_resp->u.agg_status;
+ struct ieee80211_tx_info *info = NULL;
+ struct ieee80211_hdr *hdr = NULL;
+ u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
+ int i, sh, idx;
+ u16 seq;
+ if (agg->wait_for_ba)
+ D_TX_REPLY("got tx response w/o block-ack\n");
+
+ agg->frame_count = tx_resp->frame_count;
+ agg->start_idx = start_idx;
+ agg->rate_n_flags = rate_n_flags;
+ agg->bitmap = 0;
+
+ /* num frames attempted by Tx command */
+ if (agg->frame_count == 1) {
+ /* Only one frame was attempted; no block-ack will arrive */
+ status = le16_to_cpu(frame_status[0].status);
+ idx = start_idx;
+
+ D_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n",
+ agg->frame_count, agg->start_idx, idx);
+
+ info = IEEE80211_SKB_CB(il->txq[txq_id].txb[idx].skb);
+ info->status.rates[0].count = tx_resp->failure_frame + 1;
+ info->flags &= ~IEEE80211_TX_CTL_AMPDU;
+ info->flags |= il4965_tx_status_to_mac80211(status);
+ il4965_hwrate_to_tx_control(il, rate_n_flags, info);
+
+ D_TX_REPLY("1 Frame 0x%x failure :%d\n", status & 0xff,
+ tx_resp->failure_frame);
+ D_TX_REPLY("Rate Info rate_n_flags=%x\n", rate_n_flags);
+
+ agg->wait_for_ba = 0;
+ } else {
+ /* Two or more frames were attempted; expect block-ack */
+ u64 bitmap = 0;
+ int start = agg->start_idx;
+
+ /* Construct bit-map of pending frames within Tx win */
+ for (i = 0; i < agg->frame_count; i++) {
+ u16 sc;
+ status = le16_to_cpu(frame_status[i].status);
+ seq = le16_to_cpu(frame_status[i].sequence);
+ idx = SEQ_TO_IDX(seq);
+ txq_id = SEQ_TO_QUEUE(seq);
+
+ if (status &
+ (AGG_TX_STATE_FEW_BYTES_MSK |
+ AGG_TX_STATE_ABORT_MSK))
+ continue;
+
+ D_TX_REPLY("FrameCnt = %d, txq_id=%d idx=%d\n",
+ agg->frame_count, txq_id, idx);
+
+ hdr = il_tx_queue_get_hdr(il, txq_id, idx);
+ if (!hdr) {
+ IL_ERR("BUG_ON idx doesn't point to valid skb"
+ " idx=%d, txq_id=%d\n", idx, txq_id);
+ return -1;
+ }
+
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ if (idx != (SEQ_TO_SN(sc) & 0xff)) {
+ IL_ERR("BUG_ON idx doesn't match seq control"
+ " idx=%d, seq_idx=%d, seq=%d\n", idx,
+ SEQ_TO_SN(sc), hdr->seq_ctrl);
+ return -1;
+ }
+
+ D_TX_REPLY("AGG Frame i=%d idx %d seq=%d\n", i, idx,
+ SEQ_TO_SN(sc));
+
+ sh = idx - start;
+ if (sh > 64) {
+ sh = (start - idx) + 0xff;
+ bitmap = bitmap << sh;
+ sh = 0;
+ start = idx;
+ } else if (sh < -64)
+ sh = 0xff - (start - idx);
+ else if (sh < 0) {
+ sh = start - idx;
+ start = idx;
+ bitmap = bitmap << sh;
+ sh = 0;
+ }
+ bitmap |= 1ULL << sh;
+ D_TX_REPLY("start=%d bitmap=0x%llx\n", start,
+ (unsigned long long)bitmap);
+ }
+
+ agg->bitmap = bitmap;
+ agg->start_idx = start;
+ D_TX_REPLY("Frames %d start_idx=%d bitmap=0x%llx\n",
+ agg->frame_count, agg->start_idx,
+ (unsigned long long)agg->bitmap);
+
+ if (bitmap)
+ agg->wait_for_ba = 1;
+ }
+ return 0;
+}
+
+static u8
+il4965_find_station(struct il_priv *il, const u8 * addr)
+{
+ int i;
+ int start = 0;
+ int ret = IL_INVALID_STATION;
+ unsigned long flags;
+
+ if ((il->iw_mode == NL80211_IFTYPE_ADHOC))
+ start = IL_STA_ID;
+
+ if (is_broadcast_ether_addr(addr))
+ return il->ctx.bcast_sta_id;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ for (i = start; i < il->hw_params.max_stations; i++)
+ if (il->stations[i].used &&
+ (!compare_ether_addr(il->stations[i].sta.sta.addr, addr))) {
+ ret = i;
+ goto out;
+ }
+
+ D_ASSOC("can not find STA %pM total %d\n", addr, il->num_stations);
+
+out:
+ /*
+ * It may be possible that more commands interacting with stations
+ * arrive before we completed processing the adding of
+ * station
+ */
+ if (ret != IL_INVALID_STATION &&
+ (!(il->stations[ret].used & IL_STA_UCODE_ACTIVE) ||
+ ((il->stations[ret].used & IL_STA_UCODE_ACTIVE) &&
+ (il->stations[ret].used & IL_STA_UCODE_INPROGRESS)))) {
+ IL_ERR("Requested station info for sta %d before ready.\n",
+ ret);
+ ret = IL_INVALID_STATION;
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return ret;
+}
+
+static int
+il4965_get_ra_sta_id(struct il_priv *il, struct ieee80211_hdr *hdr)
+{
+ if (il->iw_mode == NL80211_IFTYPE_STATION) {
+ return IL_AP_ID;
+ } else {
+ u8 *da = ieee80211_get_DA(hdr);
+ return il4965_find_station(il, da);
+ }
+}
+
+/**
+ * il4965_hdl_tx - Handle standard (non-aggregation) Tx response
+ */
+static void
+il4965_hdl_tx(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int idx = SEQ_TO_IDX(sequence);
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_tx_info *info;
+ struct il4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
+ u32 status = le32_to_cpu(tx_resp->u.status);
+ int uninitialized_var(tid);
+ int sta_id;
+ int freed;
+ u8 *qc = NULL;
+ unsigned long flags;
+
+ if (idx >= txq->q.n_bd || il_queue_used(&txq->q, idx) == 0) {
+ IL_ERR("Read idx for DMA queue txq_id (%d) idx %d "
+ "is out of range [0-%d] %d %d\n", txq_id, idx,
+ txq->q.n_bd, txq->q.write_ptr, txq->q.read_ptr);
+ return;
+ }
+
+ txq->time_stamp = jiffies;
+ info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
+ memset(&info->status, 0, sizeof(info->status));
+
+ hdr = il_tx_queue_get_hdr(il, txq_id, idx);
+ if (ieee80211_is_data_qos(hdr->frame_control)) {
+ qc = ieee80211_get_qos_ctl(hdr);
+ tid = qc[0] & 0xf;
+ }
+
+ sta_id = il4965_get_ra_sta_id(il, hdr);
+ if (txq->sched_retry && unlikely(sta_id == IL_INVALID_STATION)) {
+ IL_ERR("Station not known\n");
+ return;
+ }
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ if (txq->sched_retry) {
+ const u32 scd_ssn = il4965_get_scd_ssn(tx_resp);
+ struct il_ht_agg *agg = NULL;
+ WARN_ON(!qc);
+
+ agg = &il->stations[sta_id].tid[tid].agg;
+
+ il4965_tx_status_reply_tx(il, agg, tx_resp, txq_id, idx);
+
+ /* check if BAR is needed */
+ if ((tx_resp->frame_count == 1) &&
+ !il4965_is_tx_success(status))
+ info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
+
+ if (txq->q.read_ptr != (scd_ssn & 0xff)) {
+ idx = il_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd);
+ D_TX_REPLY("Retry scheduler reclaim scd_ssn "
+ "%d idx %d\n", scd_ssn, idx);
+ freed = il4965_tx_queue_reclaim(il, txq_id, idx);
+ if (qc)
+ il4965_free_tfds_in_queue(il, sta_id, tid,
+ freed);
+
+ if (il->mac80211_registered &&
+ il_queue_space(&txq->q) > txq->q.low_mark &&
+ agg->state != IL_EMPTYING_HW_QUEUE_DELBA)
+ il_wake_queue(il, txq);
+ }
+ } else {
+ info->status.rates[0].count = tx_resp->failure_frame + 1;
+ info->flags |= il4965_tx_status_to_mac80211(status);
+ il4965_hwrate_to_tx_control(il,
+ le32_to_cpu(tx_resp->rate_n_flags),
+ info);
+
+ D_TX_REPLY("TXQ %d status %s (0x%08x) "
+ "rate_n_flags 0x%x retries %d\n", txq_id,
+ il4965_get_tx_fail_reason(status), status,
+ le32_to_cpu(tx_resp->rate_n_flags),
+ tx_resp->failure_frame);
+
+ freed = il4965_tx_queue_reclaim(il, txq_id, idx);
+ if (qc && likely(sta_id != IL_INVALID_STATION))
+ il4965_free_tfds_in_queue(il, sta_id, tid, freed);
+ else if (sta_id == IL_INVALID_STATION)
+ D_TX_REPLY("Station not known\n");
+
+ if (il->mac80211_registered &&
+ il_queue_space(&txq->q) > txq->q.low_mark)
+ il_wake_queue(il, txq);
+ }
+ if (qc && likely(sta_id != IL_INVALID_STATION))
+ il4965_txq_check_empty(il, sta_id, tid, txq_id);
+
+ il4965_check_abort_status(il, tx_resp->frame_count, status);
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+}
+
+static void
+il4965_hdl_beacon(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il4965_beacon_notif *beacon = (void *)pkt->u.raw;
+ u8 rate __maybe_unused =
+ il4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
+
+ D_RX("beacon status %#x, retries:%d ibssmgr:%d "
+ "tsf:0x%.8x%.8x rate:%d\n",
+ le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
+ beacon->beacon_notify_hdr.failure_frame,
+ le32_to_cpu(beacon->ibss_mgr_status),
+ le32_to_cpu(beacon->high_tsf), le32_to_cpu(beacon->low_tsf), rate);
+
+ il->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
+}
+
+/* Set up 4965-specific Rx frame reply handlers */
+static void
+il4965_handler_setup(struct il_priv *il)
+{
+ /* Legacy Rx frames */
+ il->handlers[N_RX] = il4965_hdl_rx;
+ /* Tx response */
+ il->handlers[C_TX] = il4965_hdl_tx;
+ il->handlers[N_BEACON] = il4965_hdl_beacon;
+}
+
+static struct il_hcmd_ops il4965_hcmd = {
+ .rxon_assoc = il4965_send_rxon_assoc,
+ .commit_rxon = il4965_commit_rxon,
+ .set_rxon_chain = il4965_set_rxon_chain,
+};
+
+static void
+il4965_post_scan(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+
+ /*
+ * Since setting the RXON may have been deferred while
+ * performing the scan, fire one off if needed
+ */
+ if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
+ il_commit_rxon(il, ctx);
+}
+
+static void
+il4965_post_associate(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ struct ieee80211_vif *vif = ctx->vif;
+ struct ieee80211_conf *conf = NULL;
+ int ret = 0;
+
+ if (!vif || !il->is_open)
+ return;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ il_scan_cancel_timeout(il, 200);
+
+ conf = &il->hw->conf;
+
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ il_commit_rxon(il, ctx);
+
+ ret = il_send_rxon_timing(il, ctx);
+ if (ret)
+ IL_WARN("RXON timing - " "Attempting to continue.\n");
+
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+
+ il_set_rxon_ht(il, &il->current_ht_config);
+
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+
+ ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
+
+ D_ASSOC("assoc id %d beacon interval %d\n", vif->bss_conf.aid,
+ vif->bss_conf.beacon_int);
+
+ if (vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+
+ il_commit_rxon(il, ctx);
+
+ D_ASSOC("Associated as %d to: %pM\n", vif->bss_conf.aid,
+ ctx->active.bssid_addr);
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ il4965_send_beacon_cmd(il);
+ break;
+ default:
+ IL_ERR("%s Should not be called in %d mode\n", __func__,
+ vif->type);
+ break;
+ }
+
+ /* the chain noise calibration will enabled PM upon completion
+ * If chain noise has already been run, then we need to enable
+ * power management here */
+ if (il->chain_noise_data.state == IL_CHAIN_NOISE_DONE)
+ il_power_update_mode(il, false);
+
+ /* Enable Rx differential gain and sensitivity calibrations */
+ il4965_chain_noise_reset(il);
+ il->start_calib = 1;
+}
+
+static void
+il4965_config_ap(struct il_priv *il)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ struct ieee80211_vif *vif = ctx->vif;
+ int ret = 0;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ /* The following should be done only at AP bring up */
+ if (!il_is_associated_ctx(ctx)) {
+
+ /* RXON - unassoc (to set timing command) */
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ il_commit_rxon(il, ctx);
+
+ /* RXON Timing */
+ ret = il_send_rxon_timing(il, ctx);
+ if (ret)
+ IL_WARN("RXON timing failed - "
+ "Attempting to continue.\n");
+
+ /* AP has all antennas */
+ il->chain_noise_data.active_chains = il->hw_params.valid_rx_ant;
+ il_set_rxon_ht(il, &il->current_ht_config);
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+
+ ctx->staging.assoc_id = 0;
+
+ if (vif->bss_conf.use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
+ if (vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+ }
+ /* need to send beacon cmd before committing assoc RXON! */
+ il4965_send_beacon_cmd(il);
+ /* restore RXON assoc */
+ ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
+ il_commit_rxon(il, ctx);
+ }
+ il4965_send_beacon_cmd(il);
+}
+
+static struct il_hcmd_utils_ops il4965_hcmd_utils = {
+ .get_hcmd_size = il4965_get_hcmd_size,
+ .build_addsta_hcmd = il4965_build_addsta_hcmd,
+ .request_scan = il4965_request_scan,
+ .post_scan = il4965_post_scan,
+};
+
+static struct il_lib_ops il4965_lib = {
+ .set_hw_params = il4965_hw_set_hw_params,
+ .txq_update_byte_cnt_tbl = il4965_txq_update_byte_cnt_tbl,
+ .txq_attach_buf_to_tfd = il4965_hw_txq_attach_buf_to_tfd,
+ .txq_free_tfd = il4965_hw_txq_free_tfd,
+ .txq_init = il4965_hw_tx_queue_init,
+ .handler_setup = il4965_handler_setup,
+ .is_valid_rtc_data_addr = il4965_hw_valid_rtc_data_addr,
+ .init_alive_start = il4965_init_alive_start,
+ .load_ucode = il4965_load_bsm,
+ .dump_nic_error_log = il4965_dump_nic_error_log,
+ .dump_fh = il4965_dump_fh,
+ .set_channel_switch = il4965_hw_channel_switch,
+ .apm_ops = {
+ .init = il_apm_init,
+ .config = il4965_nic_config,
+ },
+ .eeprom_ops = {
+ .regulatory_bands = {
+ EEPROM_REGULATORY_BAND_1_CHANNELS,
+ EEPROM_REGULATORY_BAND_2_CHANNELS,
+ EEPROM_REGULATORY_BAND_3_CHANNELS,
+ EEPROM_REGULATORY_BAND_4_CHANNELS,
+ EEPROM_REGULATORY_BAND_5_CHANNELS,
+ EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS,
+ EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS},
+ .acquire_semaphore = il4965_eeprom_acquire_semaphore,
+ .release_semaphore = il4965_eeprom_release_semaphore,
+ },
+ .send_tx_power = il4965_send_tx_power,
+ .update_chain_flags = il4965_update_chain_flags,
+ .temp_ops = {
+ .temperature = il4965_temperature_calib,
+ },
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ .debugfs_ops = {
+ .rx_stats_read = il4965_ucode_rx_stats_read,
+ .tx_stats_read = il4965_ucode_tx_stats_read,
+ .general_stats_read = il4965_ucode_general_stats_read,
+ },
+#endif
+};
+
+static const struct il_legacy_ops il4965_legacy_ops = {
+ .post_associate = il4965_post_associate,
+ .config_ap = il4965_config_ap,
+ .manage_ibss_station = il4965_manage_ibss_station,
+ .update_bcast_stations = il4965_update_bcast_stations,
+};
+
+struct ieee80211_ops il4965_hw_ops = {
+ .tx = il4965_mac_tx,
+ .start = il4965_mac_start,
+ .stop = il4965_mac_stop,
+ .add_interface = il_mac_add_interface,
+ .remove_interface = il_mac_remove_interface,
+ .change_interface = il_mac_change_interface,
+ .config = il_mac_config,
+ .configure_filter = il4965_configure_filter,
+ .set_key = il4965_mac_set_key,
+ .update_tkip_key = il4965_mac_update_tkip_key,
+ .conf_tx = il_mac_conf_tx,
+ .reset_tsf = il_mac_reset_tsf,
+ .bss_info_changed = il_mac_bss_info_changed,
+ .ampdu_action = il4965_mac_ampdu_action,
+ .hw_scan = il_mac_hw_scan,
+ .sta_add = il4965_mac_sta_add,
+ .sta_remove = il_mac_sta_remove,
+ .channel_switch = il4965_mac_channel_switch,
+ .tx_last_beacon = il_mac_tx_last_beacon,
+};
+
+static const struct il_ops il4965_ops = {
+ .lib = &il4965_lib,
+ .hcmd = &il4965_hcmd,
+ .utils = &il4965_hcmd_utils,
+ .led = &il4965_led_ops,
+ .legacy = &il4965_legacy_ops,
+ .ieee80211_ops = &il4965_hw_ops,
+};
+
+static struct il_base_params il4965_base_params = {
+ .eeprom_size = IL4965_EEPROM_IMG_SIZE,
+ .num_of_queues = IL49_NUM_QUEUES,
+ .num_of_ampdu_queues = IL49_NUM_AMPDU_QUEUES,
+ .pll_cfg_val = 0,
+ .set_l0s = true,
+ .use_bsm = true,
+ .led_compensation = 61,
+ .chain_noise_num_beacons = IL4965_CAL_NUM_BEACONS,
+ .wd_timeout = IL_DEF_WD_TIMEOUT,
+ .temperature_kelvin = true,
+ .ucode_tracing = true,
+ .sensitivity_calib_by_driver = true,
+ .chain_noise_calib_by_driver = true,
+};
+
+struct il_cfg il4965_cfg = {
+ .name = "Intel(R) Wireless WiFi Link 4965AGN",
+ .fw_name_pre = IL4965_FW_PRE,
+ .ucode_api_max = IL4965_UCODE_API_MAX,
+ .ucode_api_min = IL4965_UCODE_API_MIN,
+ .sku = IL_SKU_A | IL_SKU_G | IL_SKU_N,
+ .valid_tx_ant = ANT_AB,
+ .valid_rx_ant = ANT_ABC,
+ .eeprom_ver = EEPROM_4965_EEPROM_VERSION,
+ .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
+ .ops = &il4965_ops,
+ .mod_params = &il4965_mod_params,
+ .base_params = &il4965_base_params,
+ .led_mode = IL_LED_BLINK,
+ /*
+ * Force use of chains B and C for scan RX on 5 GHz band
+ * because the device has off-channel reception on chain A.
+ */
+ .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC,
+};
+
+/* Module firmware */
+MODULE_FIRMWARE(IL4965_MODULE_FIRMWARE(IL4965_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlegacy/4965.h b/drivers/net/wireless/iwlegacy/4965.h
new file mode 100644
index 0000000..7447231
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/4965.h
@@ -0,0 +1,1309 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+
+#ifndef __il_4965_h__
+#define __il_4965_h__
+
+struct il_rx_queue;
+struct il_rx_buf;
+struct il_rx_pkt;
+struct il_tx_queue;
+struct il_rxon_context;
+
+/* configuration for the _4965 devices */
+extern struct il_cfg il4965_cfg;
+
+extern struct il_mod_params il4965_mod_params;
+
+extern struct ieee80211_ops il4965_hw_ops;
+
+/* tx queue */
+void il4965_free_tfds_in_queue(struct il_priv *il, int sta_id, int tid,
+ int freed);
+
+/* RXON */
+void il4965_set_rxon_chain(struct il_priv *il, struct il_rxon_context *ctx);
+
+/* uCode */
+int il4965_verify_ucode(struct il_priv *il);
+
+/* lib */
+void il4965_check_abort_status(struct il_priv *il, u8 frame_count, u32 status);
+
+void il4965_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
+int il4965_rx_init(struct il_priv *il, struct il_rx_queue *rxq);
+int il4965_hw_nic_init(struct il_priv *il);
+int il4965_dump_fh(struct il_priv *il, char **buf, bool display);
+
+/* rx */
+void il4965_rx_queue_restock(struct il_priv *il);
+void il4965_rx_replenish(struct il_priv *il);
+void il4965_rx_replenish_now(struct il_priv *il);
+void il4965_rx_queue_free(struct il_priv *il, struct il_rx_queue *rxq);
+int il4965_rxq_stop(struct il_priv *il);
+int il4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
+void il4965_hdl_rx(struct il_priv *il, struct il_rx_buf *rxb);
+void il4965_hdl_rx_phy(struct il_priv *il, struct il_rx_buf *rxb);
+void il4965_rx_handle(struct il_priv *il);
+
+/* tx */
+void il4965_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
+int il4965_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
+ dma_addr_t addr, u16 len, u8 reset, u8 pad);
+int il4965_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
+void il4965_hwrate_to_tx_control(struct il_priv *il, u32 rate_n_flags,
+ struct ieee80211_tx_info *info);
+int il4965_tx_skb(struct il_priv *il, struct sk_buff *skb);
+int il4965_tx_agg_start(struct il_priv *il, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, u16 tid, u16 * ssn);
+int il4965_tx_agg_stop(struct il_priv *il, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta, u16 tid);
+int il4965_txq_check_empty(struct il_priv *il, int sta_id, u8 tid, int txq_id);
+void il4965_hdl_compressed_ba(struct il_priv *il, struct il_rx_buf *rxb);
+int il4965_tx_queue_reclaim(struct il_priv *il, int txq_id, int idx);
+void il4965_hw_txq_ctx_free(struct il_priv *il);
+int il4965_txq_ctx_alloc(struct il_priv *il);
+void il4965_txq_ctx_reset(struct il_priv *il);
+void il4965_txq_ctx_stop(struct il_priv *il);
+void il4965_txq_set_sched(struct il_priv *il, u32 mask);
+
+/*
+ * Acquire il->lock before calling this function !
+ */
+void il4965_set_wr_ptrs(struct il_priv *il, int txq_id, u32 idx);
+/**
+ * il4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
+ * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
+ * @scd_retry: (1) Indicates queue will be used in aggregation mode
+ *
+ * NOTE: Acquire il->lock before calling this function !
+ */
+void il4965_tx_queue_set_status(struct il_priv *il, struct il_tx_queue *txq,
+ int tx_fifo_id, int scd_retry);
+
+u8 il4965_toggle_tx_ant(struct il_priv *il, u8 ant_idx, u8 valid);
+
+/* rx */
+void il4965_hdl_missed_beacon(struct il_priv *il, struct il_rx_buf *rxb);
+bool il4965_good_plcp_health(struct il_priv *il, struct il_rx_pkt *pkt);
+void il4965_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb);
+void il4965_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb);
+
+/* scan */
+int il4965_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
+
+/* station mgmt */
+int il4965_manage_ibss_station(struct il_priv *il, struct ieee80211_vif *vif,
+ bool add);
+
+/* hcmd */
+int il4965_send_beacon_cmd(struct il_priv *il);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+const char *il4965_get_tx_fail_reason(u32 status);
+#else
+static inline const char *
+il4965_get_tx_fail_reason(u32 status)
+{
+ return "";
+}
+#endif
+
+/* station management */
+int il4965_alloc_bcast_station(struct il_priv *il, struct il_rxon_context *ctx);
+int il4965_add_bssid_station(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, u8 *sta_id_r);
+int il4965_remove_default_wep_key(struct il_priv *il,
+ struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *key);
+int il4965_set_default_wep_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *key);
+int il4965_restore_default_wep_keys(struct il_priv *il,
+ struct il_rxon_context *ctx);
+int il4965_set_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *key, u8 sta_id);
+int il4965_remove_dynamic_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *key, u8 sta_id);
+void il4965_update_tkip_key(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_key_conf *keyconf,
+ struct ieee80211_sta *sta, u32 iv32,
+ u16 *phase1key);
+int il4965_sta_tx_modify_enable_tid(struct il_priv *il, int sta_id, int tid);
+int il4965_sta_rx_agg_start(struct il_priv *il, struct ieee80211_sta *sta,
+ int tid, u16 ssn);
+int il4965_sta_rx_agg_stop(struct il_priv *il, struct ieee80211_sta *sta,
+ int tid);
+void il4965_sta_modify_sleep_tx_count(struct il_priv *il, int sta_id, int cnt);
+int il4965_update_bcast_stations(struct il_priv *il);
+
+/* rate */
+static inline u8
+il4965_hw_get_rate(__le32 rate_n_flags)
+{
+ return le32_to_cpu(rate_n_flags) & 0xFF;
+}
+
+static inline __le32
+il4965_hw_set_rate_n_flags(u8 rate, u32 flags)
+{
+ return cpu_to_le32(flags | (u32) rate);
+}
+
+/* eeprom */
+void il4965_eeprom_get_mac(const struct il_priv *il, u8 * mac);
+int il4965_eeprom_acquire_semaphore(struct il_priv *il);
+void il4965_eeprom_release_semaphore(struct il_priv *il);
+int il4965_eeprom_check_version(struct il_priv *il);
+
+/* mac80211 handlers (for 4965) */
+void il4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
+int il4965_mac_start(struct ieee80211_hw *hw);
+void il4965_mac_stop(struct ieee80211_hw *hw);
+void il4965_configure_filter(struct ieee80211_hw *hw,
+ unsigned int changed_flags,
+ unsigned int *total_flags, u64 multicast);
+int il4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+ struct ieee80211_vif *vif, struct ieee80211_sta *sta,
+ struct ieee80211_key_conf *key);
+void il4965_mac_update_tkip_key(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_key_conf *keyconf,
+ struct ieee80211_sta *sta, u32 iv32,
+ u16 *phase1key);
+int il4965_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum ieee80211_ampdu_mlme_action action,
+ struct ieee80211_sta *sta, u16 tid, u16 * ssn,
+ u8 buf_size);
+int il4965_mac_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+void il4965_mac_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_channel_switch *ch_switch);
+
+void il4965_led_enable(struct il_priv *il);
+
+/* EEPROM */
+#define IL4965_EEPROM_IMG_SIZE 1024
+
+/*
+ * uCode queue management definitions ...
+ * The first queue used for block-ack aggregation is #7 (4965 only).
+ * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
+ */
+#define IL49_FIRST_AMPDU_QUEUE 7
+
+/* Sizes and addresses for instruction and data memory (SRAM) in
+ * 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
+#define IL49_RTC_INST_LOWER_BOUND (0x000000)
+#define IL49_RTC_INST_UPPER_BOUND (0x018000)
+
+#define IL49_RTC_DATA_LOWER_BOUND (0x800000)
+#define IL49_RTC_DATA_UPPER_BOUND (0x80A000)
+
+#define IL49_RTC_INST_SIZE (IL49_RTC_INST_UPPER_BOUND - \
+ IL49_RTC_INST_LOWER_BOUND)
+#define IL49_RTC_DATA_SIZE (IL49_RTC_DATA_UPPER_BOUND - \
+ IL49_RTC_DATA_LOWER_BOUND)
+
+#define IL49_MAX_INST_SIZE IL49_RTC_INST_SIZE
+#define IL49_MAX_DATA_SIZE IL49_RTC_DATA_SIZE
+
+/* Size of uCode instruction memory in bootstrap state machine */
+#define IL49_MAX_BSM_SIZE BSM_SRAM_SIZE
+
+static inline int
+il4965_hw_valid_rtc_data_addr(u32 addr)
+{
+ return (addr >= IL49_RTC_DATA_LOWER_BOUND &&
+ addr < IL49_RTC_DATA_UPPER_BOUND);
+}
+
+/********************* START TEMPERATURE *************************************/
+
+/**
+ * 4965 temperature calculation.
+ *
+ * The driver must calculate the device temperature before calculating
+ * a txpower setting (amplifier gain is temperature dependent). The
+ * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration
+ * values used for the life of the driver, and one of which (R4) is the
+ * real-time temperature indicator.
+ *
+ * uCode provides all 4 values to the driver via the "initialize alive"
+ * notification (see struct il4965_init_alive_resp). After the runtime uCode
+ * image loads, uCode updates the R4 value via stats notifications
+ * (see N_STATS), which occur after each received beacon
+ * when associated, or can be requested via C_STATS.
+ *
+ * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver
+ * must sign-extend to 32 bits before applying formula below.
+ *
+ * Formula:
+ *
+ * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8
+ *
+ * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is
+ * an additional correction, which should be centered around 0 degrees
+ * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for
+ * centering the 97/100 correction around 0 degrees K.
+ *
+ * Add 273 to Kelvin value to find degrees Celsius, for comparing current
+ * temperature with factory-measured temperatures when calculating txpower
+ * settings.
+ */
+#define TEMPERATURE_CALIB_KELVIN_OFFSET 8
+#define TEMPERATURE_CALIB_A_VAL 259
+
+/* Limit range of calculated temperature to be between these Kelvin values */
+#define IL_TX_POWER_TEMPERATURE_MIN (263)
+#define IL_TX_POWER_TEMPERATURE_MAX (410)
+
+#define IL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(t) \
+ ((t) < IL_TX_POWER_TEMPERATURE_MIN || \
+ (t) > IL_TX_POWER_TEMPERATURE_MAX)
+
+/********************* END TEMPERATURE ***************************************/
+
+/********************* START TXPOWER *****************************************/
+
+/**
+ * 4965 txpower calculations rely on information from three sources:
+ *
+ * 1) EEPROM
+ * 2) "initialize" alive notification
+ * 3) stats notifications
+ *
+ * EEPROM data consists of:
+ *
+ * 1) Regulatory information (max txpower and channel usage flags) is provided
+ * separately for each channel that can possibly supported by 4965.
+ * 40 MHz wide (.11n HT40) channels are listed separately from 20 MHz
+ * (legacy) channels.
+ *
+ * See struct il4965_eeprom_channel for format, and struct il4965_eeprom
+ * for locations in EEPROM.
+ *
+ * 2) Factory txpower calibration information is provided separately for
+ * sub-bands of contiguous channels. 2.4GHz has just one sub-band,
+ * but 5 GHz has several sub-bands.
+ *
+ * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided.
+ *
+ * See struct il4965_eeprom_calib_info (and the tree of structures
+ * contained within it) for format, and struct il4965_eeprom for
+ * locations in EEPROM.
+ *
+ * "Initialization alive" notification (see struct il4965_init_alive_resp)
+ * consists of:
+ *
+ * 1) Temperature calculation parameters.
+ *
+ * 2) Power supply voltage measurement.
+ *
+ * 3) Tx gain compensation to balance 2 transmitters for MIMO use.
+ *
+ * Statistics notifications deliver:
+ *
+ * 1) Current values for temperature param R4.
+ */
+
+/**
+ * To calculate a txpower setting for a given desired target txpower, channel,
+ * modulation bit rate, and transmitter chain (4965 has 2 transmitters to
+ * support MIMO and transmit diversity), driver must do the following:
+ *
+ * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel.
+ * Do not exceed regulatory limit; reduce target txpower if necessary.
+ *
+ * If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31),
+ * 2 transmitters will be used simultaneously; driver must reduce the
+ * regulatory limit by 3 dB (half-power) for each transmitter, so the
+ * combined total output of the 2 transmitters is within regulatory limits.
+ *
+ *
+ * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by
+ * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]);
+ * reduce target txpower if necessary.
+ *
+ * Backoff values below are in 1/2 dB units (equivalent to steps in
+ * txpower gain tables):
+ *
+ * OFDM 6 - 36 MBit: 10 steps (5 dB)
+ * OFDM 48 MBit: 15 steps (7.5 dB)
+ * OFDM 54 MBit: 17 steps (8.5 dB)
+ * OFDM 60 MBit: 20 steps (10 dB)
+ * CCK all rates: 10 steps (5 dB)
+ *
+ * Backoff values apply to saturation txpower on a per-transmitter basis;
+ * when using MIMO (2 transmitters), each transmitter uses the same
+ * saturation level provided in EEPROM, and the same backoff values;
+ * no reduction (such as with regulatory txpower limits) is required.
+ *
+ * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
+ * widths and 40 Mhz (.11n HT40) channel widths; there is no separate
+ * factory measurement for ht40 channels.
+ *
+ * The result of this step is the final target txpower. The rest of
+ * the steps figure out the proper settings for the device to achieve
+ * that target txpower.
+ *
+ *
+ * 3) Determine (EEPROM) calibration sub band for the target channel, by
+ * comparing against first and last channels in each sub band
+ * (see struct il4965_eeprom_calib_subband_info).
+ *
+ *
+ * 4) Linearly interpolate (EEPROM) factory calibration measurement sets,
+ * referencing the 2 factory-measured (sample) channels within the sub band.
+ *
+ * Interpolation is based on difference between target channel's frequency
+ * and the sample channels' frequencies. Since channel numbers are based
+ * on frequency (5 MHz between each channel number), this is equivalent
+ * to interpolating based on channel number differences.
+ *
+ * Note that the sample channels may or may not be the channels at the
+ * edges of the sub band. The target channel may be "outside" of the
+ * span of the sampled channels.
+ *
+ * Driver may choose the pair (for 2 Tx chains) of measurements (see
+ * struct il4965_eeprom_calib_ch_info) for which the actual measured
+ * txpower comes closest to the desired txpower. Usually, though,
+ * the middle set of measurements is closest to the regulatory limits,
+ * and is therefore a good choice for all txpower calculations (this
+ * assumes that high accuracy is needed for maximizing legal txpower,
+ * while lower txpower configurations do not need as much accuracy).
+ *
+ * Driver should interpolate both members of the chosen measurement pair,
+ * i.e. for both Tx chains (radio transmitters), unless the driver knows
+ * that only one of the chains will be used (e.g. only one tx antenna
+ * connected, but this should be unusual). The rate scaling algorithm
+ * switches antennas to find best performance, so both Tx chains will
+ * be used (although only one at a time) even for non-MIMO transmissions.
+ *
+ * Driver should interpolate factory values for temperature, gain table
+ * idx, and actual power. The power amplifier detector values are
+ * not used by the driver.
+ *
+ * Sanity check: If the target channel happens to be one of the sample
+ * channels, the results should agree with the sample channel's
+ * measurements!
+ *
+ *
+ * 5) Find difference between desired txpower and (interpolated)
+ * factory-measured txpower. Using (interpolated) factory gain table idx
+ * (shown elsewhere) as a starting point, adjust this idx lower to
+ * increase txpower, or higher to decrease txpower, until the target
+ * txpower is reached. Each step in the gain table is 1/2 dB.
+ *
+ * For example, if factory measured txpower is 16 dBm, and target txpower
+ * is 13 dBm, add 6 steps to the factory gain idx to reduce txpower
+ * by 3 dB.
+ *
+ *
+ * 6) Find difference between current device temperature and (interpolated)
+ * factory-measured temperature for sub-band. Factory values are in
+ * degrees Celsius. To calculate current temperature, see comments for
+ * "4965 temperature calculation".
+ *
+ * If current temperature is higher than factory temperature, driver must
+ * increase gain (lower gain table idx), and vice verse.
+ *
+ * Temperature affects gain differently for different channels:
+ *
+ * 2.4 GHz all channels: 3.5 degrees per half-dB step
+ * 5 GHz channels 34-43: 4.5 degrees per half-dB step
+ * 5 GHz channels >= 44: 4.0 degrees per half-dB step
+ *
+ * NOTE: Temperature can increase rapidly when transmitting, especially
+ * with heavy traffic at high txpowers. Driver should update
+ * temperature calculations often under these conditions to
+ * maintain strong txpower in the face of rising temperature.
+ *
+ *
+ * 7) Find difference between current power supply voltage indicator
+ * (from "initialize alive") and factory-measured power supply voltage
+ * indicator (EEPROM).
+ *
+ * If the current voltage is higher (indicator is lower) than factory
+ * voltage, gain should be reduced (gain table idx increased) by:
+ *
+ * (eeprom - current) / 7
+ *
+ * If the current voltage is lower (indicator is higher) than factory
+ * voltage, gain should be increased (gain table idx decreased) by:
+ *
+ * 2 * (current - eeprom) / 7
+ *
+ * If number of idx steps in either direction turns out to be > 2,
+ * something is wrong ... just use 0.
+ *
+ * NOTE: Voltage compensation is independent of band/channel.
+ *
+ * NOTE: "Initialize" uCode measures current voltage, which is assumed
+ * to be constant after this initial measurement. Voltage
+ * compensation for txpower (number of steps in gain table)
+ * may be calculated once and used until the next uCode bootload.
+ *
+ *
+ * 8) If setting up txpowers for MIMO rates (rate idxes 8-15, 24-31),
+ * adjust txpower for each transmitter chain, so txpower is balanced
+ * between the two chains. There are 5 pairs of tx_atten[group][chain]
+ * values in "initialize alive", one pair for each of 5 channel ranges:
+ *
+ * Group 0: 5 GHz channel 34-43
+ * Group 1: 5 GHz channel 44-70
+ * Group 2: 5 GHz channel 71-124
+ * Group 3: 5 GHz channel 125-200
+ * Group 4: 2.4 GHz all channels
+ *
+ * Add the tx_atten[group][chain] value to the idx for the target chain.
+ * The values are signed, but are in pairs of 0 and a non-negative number,
+ * so as to reduce gain (if necessary) of the "hotter" channel. This
+ * avoids any need to double-check for regulatory compliance after
+ * this step.
+ *
+ *
+ * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation
+ * value to the idx:
+ *
+ * Hardware rev B: 9 steps (4.5 dB)
+ * Hardware rev C: 5 steps (2.5 dB)
+ *
+ * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
+ * bits [3:2], 1 = B, 2 = C.
+ *
+ * NOTE: This compensation is in addition to any saturation backoff that
+ * might have been applied in an earlier step.
+ *
+ *
+ * 10) Select the gain table, based on band (2.4 vs 5 GHz).
+ *
+ * Limit the adjusted idx to stay within the table!
+ *
+ *
+ * 11) Read gain table entries for DSP and radio gain, place into appropriate
+ * location(s) in command (struct il4965_txpowertable_cmd).
+ */
+
+/**
+ * When MIMO is used (2 transmitters operating simultaneously), driver should
+ * limit each transmitter to deliver a max of 3 dB below the regulatory limit
+ * for the device. That is, use half power for each transmitter, so total
+ * txpower is within regulatory limits.
+ *
+ * The value "6" represents number of steps in gain table to reduce power 3 dB.
+ * Each step is 1/2 dB.
+ */
+#define IL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
+
+/**
+ * CCK gain compensation.
+ *
+ * When calculating txpowers for CCK, after making sure that the target power
+ * is within regulatory and saturation limits, driver must additionally
+ * back off gain by adding these values to the gain table idx.
+ *
+ * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
+ * bits [3:2], 1 = B, 2 = C.
+ */
+#define IL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
+#define IL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
+
+/*
+ * 4965 power supply voltage compensation for txpower
+ */
+#define TX_POWER_IL_VOLTAGE_CODES_PER_03V (7)
+
+/**
+ * Gain tables.
+ *
+ * The following tables contain pair of values for setting txpower, i.e.
+ * gain settings for the output of the device's digital signal processor (DSP),
+ * and for the analog gain structure of the transmitter.
+ *
+ * Each entry in the gain tables represents a step of 1/2 dB. Note that these
+ * are *relative* steps, not indications of absolute output power. Output
+ * power varies with temperature, voltage, and channel frequency, and also
+ * requires consideration of average power (to satisfy regulatory constraints),
+ * and peak power (to avoid distortion of the output signal).
+ *
+ * Each entry contains two values:
+ * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
+ * linear value that multiplies the output of the digital signal processor,
+ * before being sent to the analog radio.
+ * 2) Radio gain. This sets the analog gain of the radio Tx path.
+ * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
+ *
+ * EEPROM contains factory calibration data for txpower. This maps actual
+ * measured txpower levels to gain settings in the "well known" tables
+ * below ("well-known" means here that both factory calibration *and* the
+ * driver work with the same table).
+ *
+ * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table
+ * has an extension (into negative idxes), in case the driver needs to
+ * boost power setting for high device temperatures (higher than would be
+ * present during factory calibration). A 5 Ghz EEPROM idx of "40"
+ * corresponds to the 49th entry in the table used by the driver.
+ */
+#define MIN_TX_GAIN_IDX (0) /* highest gain, lowest idx, 2.4 */
+#define MIN_TX_GAIN_IDX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */
+
+/**
+ * 2.4 GHz gain table
+ *
+ * Index Dsp gain Radio gain
+ * 0 110 0x3f (highest gain)
+ * 1 104 0x3f
+ * 2 98 0x3f
+ * 3 110 0x3e
+ * 4 104 0x3e
+ * 5 98 0x3e
+ * 6 110 0x3d
+ * 7 104 0x3d
+ * 8 98 0x3d
+ * 9 110 0x3c
+ * 10 104 0x3c
+ * 11 98 0x3c
+ * 12 110 0x3b
+ * 13 104 0x3b
+ * 14 98 0x3b
+ * 15 110 0x3a
+ * 16 104 0x3a
+ * 17 98 0x3a
+ * 18 110 0x39
+ * 19 104 0x39
+ * 20 98 0x39
+ * 21 110 0x38
+ * 22 104 0x38
+ * 23 98 0x38
+ * 24 110 0x37
+ * 25 104 0x37
+ * 26 98 0x37
+ * 27 110 0x36
+ * 28 104 0x36
+ * 29 98 0x36
+ * 30 110 0x35
+ * 31 104 0x35
+ * 32 98 0x35
+ * 33 110 0x34
+ * 34 104 0x34
+ * 35 98 0x34
+ * 36 110 0x33
+ * 37 104 0x33
+ * 38 98 0x33
+ * 39 110 0x32
+ * 40 104 0x32
+ * 41 98 0x32
+ * 42 110 0x31
+ * 43 104 0x31
+ * 44 98 0x31
+ * 45 110 0x30
+ * 46 104 0x30
+ * 47 98 0x30
+ * 48 110 0x6
+ * 49 104 0x6
+ * 50 98 0x6
+ * 51 110 0x5
+ * 52 104 0x5
+ * 53 98 0x5
+ * 54 110 0x4
+ * 55 104 0x4
+ * 56 98 0x4
+ * 57 110 0x3
+ * 58 104 0x3
+ * 59 98 0x3
+ * 60 110 0x2
+ * 61 104 0x2
+ * 62 98 0x2
+ * 63 110 0x1
+ * 64 104 0x1
+ * 65 98 0x1
+ * 66 110 0x0
+ * 67 104 0x0
+ * 68 98 0x0
+ * 69 97 0
+ * 70 96 0
+ * 71 95 0
+ * 72 94 0
+ * 73 93 0
+ * 74 92 0
+ * 75 91 0
+ * 76 90 0
+ * 77 89 0
+ * 78 88 0
+ * 79 87 0
+ * 80 86 0
+ * 81 85 0
+ * 82 84 0
+ * 83 83 0
+ * 84 82 0
+ * 85 81 0
+ * 86 80 0
+ * 87 79 0
+ * 88 78 0
+ * 89 77 0
+ * 90 76 0
+ * 91 75 0
+ * 92 74 0
+ * 93 73 0
+ * 94 72 0
+ * 95 71 0
+ * 96 70 0
+ * 97 69 0
+ * 98 68 0
+ */
+
+/**
+ * 5 GHz gain table
+ *
+ * Index Dsp gain Radio gain
+ * -9 123 0x3F (highest gain)
+ * -8 117 0x3F
+ * -7 110 0x3F
+ * -6 104 0x3F
+ * -5 98 0x3F
+ * -4 110 0x3E
+ * -3 104 0x3E
+ * -2 98 0x3E
+ * -1 110 0x3D
+ * 0 104 0x3D
+ * 1 98 0x3D
+ * 2 110 0x3C
+ * 3 104 0x3C
+ * 4 98 0x3C
+ * 5 110 0x3B
+ * 6 104 0x3B
+ * 7 98 0x3B
+ * 8 110 0x3A
+ * 9 104 0x3A
+ * 10 98 0x3A
+ * 11 110 0x39
+ * 12 104 0x39
+ * 13 98 0x39
+ * 14 110 0x38
+ * 15 104 0x38
+ * 16 98 0x38
+ * 17 110 0x37
+ * 18 104 0x37
+ * 19 98 0x37
+ * 20 110 0x36
+ * 21 104 0x36
+ * 22 98 0x36
+ * 23 110 0x35
+ * 24 104 0x35
+ * 25 98 0x35
+ * 26 110 0x34
+ * 27 104 0x34
+ * 28 98 0x34
+ * 29 110 0x33
+ * 30 104 0x33
+ * 31 98 0x33
+ * 32 110 0x32
+ * 33 104 0x32
+ * 34 98 0x32
+ * 35 110 0x31
+ * 36 104 0x31
+ * 37 98 0x31
+ * 38 110 0x30
+ * 39 104 0x30
+ * 40 98 0x30
+ * 41 110 0x25
+ * 42 104 0x25
+ * 43 98 0x25
+ * 44 110 0x24
+ * 45 104 0x24
+ * 46 98 0x24
+ * 47 110 0x23
+ * 48 104 0x23
+ * 49 98 0x23
+ * 50 110 0x22
+ * 51 104 0x18
+ * 52 98 0x18
+ * 53 110 0x17
+ * 54 104 0x17
+ * 55 98 0x17
+ * 56 110 0x16
+ * 57 104 0x16
+ * 58 98 0x16
+ * 59 110 0x15
+ * 60 104 0x15
+ * 61 98 0x15
+ * 62 110 0x14
+ * 63 104 0x14
+ * 64 98 0x14
+ * 65 110 0x13
+ * 66 104 0x13
+ * 67 98 0x13
+ * 68 110 0x12
+ * 69 104 0x08
+ * 70 98 0x08
+ * 71 110 0x07
+ * 72 104 0x07
+ * 73 98 0x07
+ * 74 110 0x06
+ * 75 104 0x06
+ * 76 98 0x06
+ * 77 110 0x05
+ * 78 104 0x05
+ * 79 98 0x05
+ * 80 110 0x04
+ * 81 104 0x04
+ * 82 98 0x04
+ * 83 110 0x03
+ * 84 104 0x03
+ * 85 98 0x03
+ * 86 110 0x02
+ * 87 104 0x02
+ * 88 98 0x02
+ * 89 110 0x01
+ * 90 104 0x01
+ * 91 98 0x01
+ * 92 110 0x00
+ * 93 104 0x00
+ * 94 98 0x00
+ * 95 93 0x00
+ * 96 88 0x00
+ * 97 83 0x00
+ * 98 78 0x00
+ */
+
+/**
+ * Sanity checks and default values for EEPROM regulatory levels.
+ * If EEPROM values fall outside MIN/MAX range, use default values.
+ *
+ * Regulatory limits refer to the maximum average txpower allowed by
+ * regulatory agencies in the geographies in which the device is meant
+ * to be operated. These limits are SKU-specific (i.e. geography-specific),
+ * and channel-specific; each channel has an individual regulatory limit
+ * listed in the EEPROM.
+ *
+ * Units are in half-dBm (i.e. "34" means 17 dBm).
+ */
+#define IL_TX_POWER_DEFAULT_REGULATORY_24 (34)
+#define IL_TX_POWER_DEFAULT_REGULATORY_52 (34)
+#define IL_TX_POWER_REGULATORY_MIN (0)
+#define IL_TX_POWER_REGULATORY_MAX (34)
+
+/**
+ * Sanity checks and default values for EEPROM saturation levels.
+ * If EEPROM values fall outside MIN/MAX range, use default values.
+ *
+ * Saturation is the highest level that the output power amplifier can produce
+ * without significant clipping distortion. This is a "peak" power level.
+ * Different types of modulation (i.e. various "rates", and OFDM vs. CCK)
+ * require differing amounts of backoff, relative to their average power output,
+ * in order to avoid clipping distortion.
+ *
+ * Driver must make sure that it is violating neither the saturation limit,
+ * nor the regulatory limit, when calculating Tx power settings for various
+ * rates.
+ *
+ * Units are in half-dBm (i.e. "38" means 19 dBm).
+ */
+#define IL_TX_POWER_DEFAULT_SATURATION_24 (38)
+#define IL_TX_POWER_DEFAULT_SATURATION_52 (38)
+#define IL_TX_POWER_SATURATION_MIN (20)
+#define IL_TX_POWER_SATURATION_MAX (50)
+
+/**
+ * Channel groups used for Tx Attenuation calibration (MIMO tx channel balance)
+ * and thermal Txpower calibration.
+ *
+ * When calculating txpower, driver must compensate for current device
+ * temperature; higher temperature requires higher gain. Driver must calculate
+ * current temperature (see "4965 temperature calculation"), then compare vs.
+ * factory calibration temperature in EEPROM; if current temperature is higher
+ * than factory temperature, driver must *increase* gain by proportions shown
+ * in table below. If current temperature is lower than factory, driver must
+ * *decrease* gain.
+ *
+ * Different frequency ranges require different compensation, as shown below.
+ */
+/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */
+#define CALIB_IL_TX_ATTEN_GR1_FCH 34
+#define CALIB_IL_TX_ATTEN_GR1_LCH 43
+
+/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */
+#define CALIB_IL_TX_ATTEN_GR2_FCH 44
+#define CALIB_IL_TX_ATTEN_GR2_LCH 70
+
+/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */
+#define CALIB_IL_TX_ATTEN_GR3_FCH 71
+#define CALIB_IL_TX_ATTEN_GR3_LCH 124
+
+/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */
+#define CALIB_IL_TX_ATTEN_GR4_FCH 125
+#define CALIB_IL_TX_ATTEN_GR4_LCH 200
+
+/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */
+#define CALIB_IL_TX_ATTEN_GR5_FCH 1
+#define CALIB_IL_TX_ATTEN_GR5_LCH 20
+
+enum {
+ CALIB_CH_GROUP_1 = 0,
+ CALIB_CH_GROUP_2 = 1,
+ CALIB_CH_GROUP_3 = 2,
+ CALIB_CH_GROUP_4 = 3,
+ CALIB_CH_GROUP_5 = 4,
+ CALIB_CH_GROUP_MAX
+};
+
+/********************* END TXPOWER *****************************************/
+
+/**
+ * Tx/Rx Queues
+ *
+ * Most communication between driver and 4965 is via queues of data buffers.
+ * For example, all commands that the driver issues to device's embedded
+ * controller (uCode) are via the command queue (one of the Tx queues). All
+ * uCode command responses/replies/notifications, including Rx frames, are
+ * conveyed from uCode to driver via the Rx queue.
+ *
+ * Most support for these queues, including handshake support, resides in
+ * structures in host DRAM, shared between the driver and the device. When
+ * allocating this memory, the driver must make sure that data written by
+ * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's
+ * cache memory), so DRAM and cache are consistent, and the device can
+ * immediately see changes made by the driver.
+ *
+ * 4965 supports up to 16 DRAM-based Tx queues, and services these queues via
+ * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array
+ * in DRAM containing 256 Transmit Frame Descriptors (TFDs).
+ */
+#define IL49_NUM_FIFOS 7
+#define IL49_CMD_FIFO_NUM 4
+#define IL49_NUM_QUEUES 16
+#define IL49_NUM_AMPDU_QUEUES 8
+
+/**
+ * struct il4965_schedq_bc_tbl
+ *
+ * Byte Count table
+ *
+ * Each Tx queue uses a byte-count table containing 320 entries:
+ * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that
+ * duplicate the first 64 entries (to avoid wrap-around within a Tx win;
+ * max Tx win is 64 TFDs).
+ *
+ * When driver sets up a new TFD, it must also enter the total byte count
+ * of the frame to be transmitted into the corresponding entry in the byte
+ * count table for the chosen Tx queue. If the TFD idx is 0-63, the driver
+ * must duplicate the byte count entry in corresponding idx 256-319.
+ *
+ * padding puts each byte count table on a 1024-byte boundary;
+ * 4965 assumes tables are separated by 1024 bytes.
+ */
+struct il4965_scd_bc_tbl {
+ __le16 tfd_offset[TFD_QUEUE_BC_SIZE];
+ u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)];
+} __packed;
+
+#define IL4965_RTC_INST_LOWER_BOUND (0x000000)
+
+/* RSSI to dBm */
+#define IL4965_RSSI_OFFSET 44
+
+/* PCI registers */
+#define PCI_CFG_RETRY_TIMEOUT 0x041
+
+/* PCI register values */
+#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
+#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
+
+#define IL4965_DEFAULT_TX_RETRY 15
+
+/* EEPROM */
+#define IL4965_FIRST_AMPDU_QUEUE 10
+
+/* Calibration */
+void il4965_chain_noise_calibration(struct il_priv *il, void *stat_resp);
+void il4965_sensitivity_calibration(struct il_priv *il, void *resp);
+void il4965_init_sensitivity(struct il_priv *il);
+void il4965_reset_run_time_calib(struct il_priv *il);
+void il4965_calib_free_results(struct il_priv *il);
+
+/* Debug */
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ssize_t il4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ssize_t il4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ssize_t il4965_ucode_general_stats_read(struct file *file,
+ char __user *user_buf, size_t count,
+ loff_t *ppos);
+#endif
+
+/****************************/
+/* Flow Handler Definitions */
+/****************************/
+
+/**
+ * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
+ * Addresses are offsets from device's PCI hardware base address.
+ */
+#define FH49_MEM_LOWER_BOUND (0x1000)
+#define FH49_MEM_UPPER_BOUND (0x2000)
+
+/**
+ * Keep-Warm (KW) buffer base address.
+ *
+ * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
+ * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
+ * DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host
+ * from going into a power-savings mode that would cause higher DRAM latency,
+ * and possible data over/under-runs, before all Tx/Rx is complete.
+ *
+ * Driver loads FH49_KW_MEM_ADDR_REG with the physical address (bits 35:4)
+ * of the buffer, which must be 4K aligned. Once this is set up, the 4965
+ * automatically invokes keep-warm accesses when normal accesses might not
+ * be sufficient to maintain fast DRAM response.
+ *
+ * Bit fields:
+ * 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned
+ */
+#define FH49_KW_MEM_ADDR_REG (FH49_MEM_LOWER_BOUND + 0x97C)
+
+/**
+ * TFD Circular Buffers Base (CBBC) addresses
+ *
+ * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
+ * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
+ * (see struct il_tfd_frame). These 16 pointer registers are offset by 0x04
+ * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
+ * aligned (address bits 0-7 must be 0).
+ *
+ * Bit fields in each pointer register:
+ * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
+ */
+#define FH49_MEM_CBBC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0)
+#define FH49_MEM_CBBC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xA10)
+
+/* Find TFD CB base pointer for given queue (range 0-15). */
+#define FH49_MEM_CBBC_QUEUE(x) (FH49_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
+
+/**
+ * Rx SRAM Control and Status Registers (RSCSR)
+ *
+ * These registers provide handshake between driver and 4965 for the Rx queue
+ * (this queue handles *all* command responses, notifications, Rx data, etc.
+ * sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx
+ * queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can
+ * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
+ * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
+ * mapping between RBDs and RBs.
+ *
+ * Driver must allocate host DRAM memory for the following, and set the
+ * physical address of each into 4965 registers:
+ *
+ * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
+ * entries (although any power of 2, up to 4096, is selectable by driver).
+ * Each entry (1 dword) points to a receive buffer (RB) of consistent size
+ * (typically 4K, although 8K or 16K are also selectable by driver).
+ * Driver sets up RB size and number of RBDs in the CB via Rx config
+ * register FH49_MEM_RCSR_CHNL0_CONFIG_REG.
+ *
+ * Bit fields within one RBD:
+ * 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned
+ *
+ * Driver sets physical address [35:8] of base of RBD circular buffer
+ * into FH49_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
+ *
+ * 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
+ * (RBs) have been filled, via a "write pointer", actually the idx of
+ * the RB's corresponding RBD within the circular buffer. Driver sets
+ * physical address [35:4] into FH49_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
+ *
+ * Bit fields in lower dword of Rx status buffer (upper dword not used
+ * by driver; see struct il4965_shared, val0):
+ * 31-12: Not used by driver
+ * 11- 0: Index of last filled Rx buffer descriptor
+ * (4965 writes, driver reads this value)
+ *
+ * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
+ * enter pointers to these RBs into contiguous RBD circular buffer entries,
+ * and update the 4965's "write" idx register,
+ * FH49_RSCSR_CHNL0_RBDCB_WPTR_REG.
+ *
+ * This "write" idx corresponds to the *next* RBD that the driver will make
+ * available, i.e. one RBD past the tail of the ready-to-fill RBDs within
+ * the circular buffer. This value should initially be 0 (before preparing any
+ * RBs), should be 8 after preparing the first 8 RBs (for example), and must
+ * wrap back to 0 at the end of the circular buffer (but don't wrap before
+ * "read" idx has advanced past 1! See below).
+ * NOTE: 4965 EXPECTS THE WRITE IDX TO BE INCREMENTED IN MULTIPLES OF 8.
+ *
+ * As the 4965 fills RBs (referenced from contiguous RBDs within the circular
+ * buffer), it updates the Rx status buffer in host DRAM, 2) described above,
+ * to tell the driver the idx of the latest filled RBD. The driver must
+ * read this "read" idx from DRAM after receiving an Rx interrupt from 4965.
+ *
+ * The driver must also internally keep track of a third idx, which is the
+ * next RBD to process. When receiving an Rx interrupt, driver should process
+ * all filled but unprocessed RBs up to, but not including, the RB
+ * corresponding to the "read" idx. For example, if "read" idx becomes "1",
+ * driver may process the RB pointed to by RBD 0. Depending on volume of
+ * traffic, there may be many RBs to process.
+ *
+ * If read idx == write idx, 4965 thinks there is no room to put new data.
+ * Due to this, the maximum number of filled RBs is 255, instead of 256. To
+ * be safe, make sure that there is a gap of at least 2 RBDs between "write"
+ * and "read" idxes; that is, make sure that there are no more than 254
+ * buffers waiting to be filled.
+ */
+#define FH49_MEM_RSCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xBC0)
+#define FH49_MEM_RSCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00)
+#define FH49_MEM_RSCSR_CHNL0 (FH49_MEM_RSCSR_LOWER_BOUND)
+
+/**
+ * Physical base address of 8-byte Rx Status buffer.
+ * Bit fields:
+ * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
+ */
+#define FH49_RSCSR_CHNL0_STTS_WPTR_REG (FH49_MEM_RSCSR_CHNL0)
+
+/**
+ * Physical base address of Rx Buffer Descriptor Circular Buffer.
+ * Bit fields:
+ * 27-0: RBD CD physical base address [35:8], must be 256-byte aligned.
+ */
+#define FH49_RSCSR_CHNL0_RBDCB_BASE_REG (FH49_MEM_RSCSR_CHNL0 + 0x004)
+
+/**
+ * Rx write pointer (idx, really!).
+ * Bit fields:
+ * 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1.
+ * NOTE: For 256-entry circular buffer, use only bits [7:0].
+ */
+#define FH49_RSCSR_CHNL0_RBDCB_WPTR_REG (FH49_MEM_RSCSR_CHNL0 + 0x008)
+#define FH49_RSCSR_CHNL0_WPTR (FH49_RSCSR_CHNL0_RBDCB_WPTR_REG)
+
+/**
+ * Rx Config/Status Registers (RCSR)
+ * Rx Config Reg for channel 0 (only channel used)
+ *
+ * Driver must initialize FH49_MEM_RCSR_CHNL0_CONFIG_REG as follows for
+ * normal operation (see bit fields).
+ *
+ * Clearing FH49_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
+ * Driver should poll FH49_MEM_RSSR_RX_STATUS_REG for
+ * FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
+ *
+ * Bit fields:
+ * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
+ * '10' operate normally
+ * 29-24: reserved
+ * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
+ * min "5" for 32 RBDs, max "12" for 4096 RBDs.
+ * 19-18: reserved
+ * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
+ * '10' 12K, '11' 16K.
+ * 15-14: reserved
+ * 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
+ * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
+ * typical value 0x10 (about 1/2 msec)
+ * 3- 0: reserved
+ */
+#define FH49_MEM_RCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC00)
+#define FH49_MEM_RCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xCC0)
+#define FH49_MEM_RCSR_CHNL0 (FH49_MEM_RCSR_LOWER_BOUND)
+
+#define FH49_MEM_RCSR_CHNL0_CONFIG_REG (FH49_MEM_RCSR_CHNL0)
+
+#define FH49_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */
+#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */
+#define FH49_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */
+#define FH49_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */
+#define FH49_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
+#define FH49_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31 */
+
+#define FH49_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20)
+#define FH49_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4)
+#define RX_RB_TIMEOUT (0x10)
+
+#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
+#define FH49_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
+#define FH49_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
+
+#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
+#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000)
+#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000)
+#define FH49_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000)
+
+#define FH49_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004)
+#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
+#define FH49_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
+
+/**
+ * Rx Shared Status Registers (RSSR)
+ *
+ * After stopping Rx DMA channel (writing 0 to
+ * FH49_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll
+ * FH49_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
+ *
+ * Bit fields:
+ * 24: 1 = Channel 0 is idle
+ *
+ * FH49_MEM_RSSR_SHARED_CTRL_REG and FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
+ * contain default values that should not be altered by the driver.
+ */
+#define FH49_MEM_RSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xC40)
+#define FH49_MEM_RSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00)
+
+#define FH49_MEM_RSSR_SHARED_CTRL_REG (FH49_MEM_RSSR_LOWER_BOUND)
+#define FH49_MEM_RSSR_RX_STATUS_REG (FH49_MEM_RSSR_LOWER_BOUND + 0x004)
+#define FH49_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\
+ (FH49_MEM_RSSR_LOWER_BOUND + 0x008)
+
+#define FH49_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
+
+#define FH49_MEM_TFDIB_REG1_ADDR_BITSHIFT 28
+
+/* TFDB Area - TFDs buffer table */
+#define FH49_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF)
+#define FH49_TFDIB_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x900)
+#define FH49_TFDIB_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x958)
+#define FH49_TFDIB_CTRL0_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl))
+#define FH49_TFDIB_CTRL1_REG(_chnl) (FH49_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4)
+
+/**
+ * Transmit DMA Channel Control/Status Registers (TCSR)
+ *
+ * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
+ * supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
+ * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
+ *
+ * To use a Tx DMA channel, driver must initialize its
+ * FH49_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
+ *
+ * FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
+ * FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
+ *
+ * All other bits should be 0.
+ *
+ * Bit fields:
+ * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
+ * '10' operate normally
+ * 29- 4: Reserved, set to "0"
+ * 3: Enable internal DMA requests (1, normal operation), disable (0)
+ * 2- 0: Reserved, set to "0"
+ */
+#define FH49_TCSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xD00)
+#define FH49_TCSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xE60)
+
+/* Find Control/Status reg for given Tx DMA/FIFO channel */
+#define FH49_TCSR_CHNL_NUM (7)
+#define FH50_TCSR_CHNL_NUM (8)
+
+/* TCSR: tx_config register values */
+#define FH49_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
+ (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl))
+#define FH49_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
+ (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4)
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
+ (FH49_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8)
+
+#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001)
+
+#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008)
+
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
+
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000)
+
+#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
+#define FH49_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
+
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000)
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000)
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003)
+
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20)
+#define FH49_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12)
+
+/**
+ * Tx Shared Status Registers (TSSR)
+ *
+ * After stopping Tx DMA channel (writing 0 to
+ * FH49_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
+ * FH49_TSSR_TX_STATUS_REG until selected Tx channel is idle
+ * (channel's buffers empty | no pending requests).
+ *
+ * Bit fields:
+ * 31-24: 1 = Channel buffers empty (channel 7:0)
+ * 23-16: 1 = No pending requests (channel 7:0)
+ */
+#define FH49_TSSR_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0xEA0)
+#define FH49_TSSR_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0xEC0)
+
+#define FH49_TSSR_TX_STATUS_REG (FH49_TSSR_LOWER_BOUND + 0x010)
+
+/**
+ * Bit fields for TSSR(Tx Shared Status & Control) error status register:
+ * 31: Indicates an address error when accessed to internal memory
+ * uCode/driver must write "1" in order to clear this flag
+ * 30: Indicates that Host did not send the expected number of dwords to FH
+ * uCode/driver must write "1" in order to clear this flag
+ * 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA
+ * command was received from the scheduler while the TRB was already full
+ * with previous command
+ * uCode/driver must write "1" in order to clear this flag
+ * 7-0: Each status bit indicates a channel's TxCredit error. When an error
+ * bit is set, it indicates that the FH has received a full indication
+ * from the RTC TxFIFO and the current value of the TxCredit counter was
+ * not equal to zero. This mean that the credit mechanism was not
+ * synchronized to the TxFIFO status
+ * uCode/driver must write "1" in order to clear this flag
+ */
+#define FH49_TSSR_TX_ERROR_REG (FH49_TSSR_LOWER_BOUND + 0x018)
+
+#define FH49_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16)
+
+/* Tx service channels */
+#define FH49_SRVC_CHNL (9)
+#define FH49_SRVC_LOWER_BOUND (FH49_MEM_LOWER_BOUND + 0x9C8)
+#define FH49_SRVC_UPPER_BOUND (FH49_MEM_LOWER_BOUND + 0x9D0)
+#define FH49_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
+ (FH49_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)
+
+#define FH49_TX_CHICKEN_BITS_REG (FH49_MEM_LOWER_BOUND + 0xE98)
+/* Instruct FH to increment the retry count of a packet when
+ * it is brought from the memory to TX-FIFO
+ */
+#define FH49_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002)
+
+/* Keep Warm Size */
+#define IL_KW_SIZE 0x1000 /* 4k */
+
+#endif /* __il_4965_h__ */
diff --git a/drivers/net/wireless/iwlegacy/Kconfig b/drivers/net/wireless/iwlegacy/Kconfig
index aef65cd..05bd375 100644
--- a/drivers/net/wireless/iwlegacy/Kconfig
+++ b/drivers/net/wireless/iwlegacy/Kconfig
@@ -1,4 +1,4 @@
-config IWLWIFI_LEGACY
+config IWLEGACY
tristate
select FW_LOADER
select NEW_LEDS
@@ -7,13 +7,13 @@
select MAC80211_LEDS
menu "Debugging Options"
- depends on IWLWIFI_LEGACY
+ depends on IWLEGACY
-config IWLWIFI_LEGACY_DEBUG
- bool "Enable full debugging output in 4965 and 3945 drivers"
- depends on IWLWIFI_LEGACY
+config IWLEGACY_DEBUG
+ bool "Enable full debugging output in iwlegacy (iwl 3945/4965) drivers"
+ depends on IWLEGACY
---help---
- This option will enable debug tracing output for the iwlwifilegacy
+ This option will enable debug tracing output for the iwlegacy
drivers.
This will result in the kernel module being ~100k larger. You can
@@ -29,43 +29,26 @@
% echo 0x43fff > /sys/class/net/wlan0/device/debug_level
You can find the list of debug mask values in:
- drivers/net/wireless/iwlwifilegacy/iwl-debug.h
+ drivers/net/wireless/iwlegacy/common.h
If this is your first time using this driver, you should say Y here
as the debug information can assist others in helping you resolve
any problems you may encounter.
-config IWLWIFI_LEGACY_DEBUGFS
- bool "4965 and 3945 debugfs support"
- depends on IWLWIFI_LEGACY && MAC80211_DEBUGFS
+config IWLEGACY_DEBUGFS
+ bool "iwlegacy (iwl 3945/4965) debugfs support"
+ depends on IWLEGACY && MAC80211_DEBUGFS
---help---
- Enable creation of debugfs files for the iwlwifilegacy drivers. This
+ Enable creation of debugfs files for the iwlegacy drivers. This
is a low-impact option that allows getting insight into the
driver's state at runtime.
-config IWLWIFI_LEGACY_DEVICE_TRACING
- bool "iwlwifilegacy legacy device access tracing"
- depends on IWLWIFI_LEGACY
- depends on EVENT_TRACING
- help
- Say Y here to trace all commands, including TX frames and IO
- accesses, sent to the device. If you say yes, iwlwifilegacy will
- register with the ftrace framework for event tracing and dump
- all this information to the ringbuffer, you may need to
- increase the ringbuffer size. See the ftrace documentation
- for more information.
-
- When tracing is not enabled, this option still has some
- (though rather small) overhead.
-
- If unsure, say Y so we can help you better when problems
- occur.
endmenu
config IWL4965
tristate "Intel Wireless WiFi 4965AGN (iwl4965)"
depends on PCI && MAC80211
- select IWLWIFI_LEGACY
+ select IWLEGACY
---help---
This option enables support for
@@ -93,7 +76,7 @@
config IWL3945
tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)"
depends on PCI && MAC80211
- select IWLWIFI_LEGACY
+ select IWLEGACY
---help---
Select to build the driver supporting the:
diff --git a/drivers/net/wireless/iwlegacy/Makefile b/drivers/net/wireless/iwlegacy/Makefile
index d56aeb3..c985a01 100644
--- a/drivers/net/wireless/iwlegacy/Makefile
+++ b/drivers/net/wireless/iwlegacy/Makefile
@@ -1,25 +1,17 @@
-obj-$(CONFIG_IWLWIFI_LEGACY) += iwl-legacy.o
-iwl-legacy-objs := iwl-core.o iwl-eeprom.o iwl-hcmd.o iwl-power.o
-iwl-legacy-objs += iwl-rx.o iwl-tx.o iwl-sta.o
-iwl-legacy-objs += iwl-scan.o iwl-led.o
-iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-debugfs.o
-iwl-legacy-$(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) += iwl-devtrace.o
+obj-$(CONFIG_IWLEGACY) += iwlegacy.o
+iwlegacy-objs := common.o
+iwlegacy-$(CONFIG_IWLEGACY_DEBUGFS) += debug.o
-iwl-legacy-objs += $(iwl-legacy-m)
-
-CFLAGS_iwl-devtrace.o := -I$(src)
+iwlegacy-objs += $(iwlegacy-m)
# 4965
obj-$(CONFIG_IWL4965) += iwl4965.o
-iwl4965-objs := iwl-4965.o iwl4965-base.o iwl-4965-rs.o iwl-4965-led.o
-iwl4965-objs += iwl-4965-ucode.o iwl-4965-tx.o
-iwl4965-objs += iwl-4965-lib.o iwl-4965-rx.o iwl-4965-calib.o
-iwl4965-objs += iwl-4965-sta.o iwl-4965-eeprom.o
-iwl4965-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-4965-debugfs.o
+iwl4965-objs := 4965.o 4965-mac.o 4965-rs.o 4965-calib.o
+iwl4965-$(CONFIG_IWLEGACY_DEBUGFS) += 4965-debug.o
# 3945
obj-$(CONFIG_IWL3945) += iwl3945.o
-iwl3945-objs := iwl3945-base.o iwl-3945.o iwl-3945-rs.o iwl-3945-led.o
-iwl3945-$(CONFIG_IWLWIFI_LEGACY_DEBUGFS) += iwl-3945-debugfs.o
+iwl3945-objs := 3945-mac.o 3945.o 3945-rs.o
+iwl3945-$(CONFIG_IWLEGACY_DEBUGFS) += 3945-debug.o
ccflags-y += -D__CHECK_ENDIAN__
diff --git a/drivers/net/wireless/iwlegacy/iwl-commands.h b/drivers/net/wireless/iwlegacy/commands.h
similarity index 79%
rename from drivers/net/wireless/iwlegacy/iwl-commands.h
rename to drivers/net/wireless/iwlegacy/commands.h
index 8990405..25dd7d2 100644
--- a/drivers/net/wireless/iwlegacy/iwl-commands.h
+++ b/drivers/net/wireless/iwlegacy/commands.h
@@ -60,100 +60,96 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
-/*
- * Please use this file (iwl-commands.h) only for uCode API definitions.
- * Please use iwl-xxxx-hw.h for hardware-related definitions.
- * Please use iwl-dev.h for driver implementation definitions.
- */
-#ifndef __iwl_legacy_commands_h__
-#define __iwl_legacy_commands_h__
+#ifndef __il_commands_h__
+#define __il_commands_h__
-struct iwl_priv;
+#include <linux/ieee80211.h>
+
+struct il_priv;
/* uCode version contains 4 values: Major/Minor/API/Serial */
-#define IWL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
-#define IWL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
-#define IWL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
-#define IWL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
-
+#define IL_UCODE_MAJOR(ver) (((ver) & 0xFF000000) >> 24)
+#define IL_UCODE_MINOR(ver) (((ver) & 0x00FF0000) >> 16)
+#define IL_UCODE_API(ver) (((ver) & 0x0000FF00) >> 8)
+#define IL_UCODE_SERIAL(ver) ((ver) & 0x000000FF)
/* Tx rates */
-#define IWL_CCK_RATES 4
-#define IWL_OFDM_RATES 8
-#define IWL_MAX_RATES (IWL_CCK_RATES + IWL_OFDM_RATES)
+#define IL_CCK_RATES 4
+#define IL_OFDM_RATES 8
+#define IL_MAX_RATES (IL_CCK_RATES + IL_OFDM_RATES)
enum {
- REPLY_ALIVE = 0x1,
- REPLY_ERROR = 0x2,
+ N_ALIVE = 0x1,
+ N_ERROR = 0x2,
/* RXON and QOS commands */
- REPLY_RXON = 0x10,
- REPLY_RXON_ASSOC = 0x11,
- REPLY_QOS_PARAM = 0x13,
- REPLY_RXON_TIMING = 0x14,
+ C_RXON = 0x10,
+ C_RXON_ASSOC = 0x11,
+ C_QOS_PARAM = 0x13,
+ C_RXON_TIMING = 0x14,
/* Multi-Station support */
- REPLY_ADD_STA = 0x18,
- REPLY_REMOVE_STA = 0x19,
+ C_ADD_STA = 0x18,
+ C_REM_STA = 0x19,
/* Security */
- REPLY_WEPKEY = 0x20,
+ C_WEPKEY = 0x20,
/* RX, TX, LEDs */
- REPLY_3945_RX = 0x1b, /* 3945 only */
- REPLY_TX = 0x1c,
- REPLY_RATE_SCALE = 0x47, /* 3945 only */
- REPLY_LEDS_CMD = 0x48,
- REPLY_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 and up */
+ N_3945_RX = 0x1b, /* 3945 only */
+ C_TX = 0x1c,
+ C_RATE_SCALE = 0x47, /* 3945 only */
+ C_LEDS = 0x48,
+ C_TX_LINK_QUALITY_CMD = 0x4e, /* for 4965 */
/* 802.11h related */
- REPLY_CHANNEL_SWITCH = 0x72,
- CHANNEL_SWITCH_NOTIFICATION = 0x73,
- REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74,
- SPECTRUM_MEASURE_NOTIFICATION = 0x75,
+ C_CHANNEL_SWITCH = 0x72,
+ N_CHANNEL_SWITCH = 0x73,
+ C_SPECTRUM_MEASUREMENT = 0x74,
+ N_SPECTRUM_MEASUREMENT = 0x75,
/* Power Management */
- POWER_TABLE_CMD = 0x77,
- PM_SLEEP_NOTIFICATION = 0x7A,
- PM_DEBUG_STATISTIC_NOTIFIC = 0x7B,
+ C_POWER_TBL = 0x77,
+ N_PM_SLEEP = 0x7A,
+ N_PM_DEBUG_STATS = 0x7B,
/* Scan commands and notifications */
- REPLY_SCAN_CMD = 0x80,
- REPLY_SCAN_ABORT_CMD = 0x81,
- SCAN_START_NOTIFICATION = 0x82,
- SCAN_RESULTS_NOTIFICATION = 0x83,
- SCAN_COMPLETE_NOTIFICATION = 0x84,
+ C_SCAN = 0x80,
+ C_SCAN_ABORT = 0x81,
+ N_SCAN_START = 0x82,
+ N_SCAN_RESULTS = 0x83,
+ N_SCAN_COMPLETE = 0x84,
/* IBSS/AP commands */
- BEACON_NOTIFICATION = 0x90,
- REPLY_TX_BEACON = 0x91,
+ N_BEACON = 0x90,
+ C_TX_BEACON = 0x91,
/* Miscellaneous commands */
- REPLY_TX_PWR_TABLE_CMD = 0x97,
+ C_TX_PWR_TBL = 0x97,
/* Bluetooth device coexistence config command */
- REPLY_BT_CONFIG = 0x9b,
+ C_BT_CONFIG = 0x9b,
/* Statistics */
- REPLY_STATISTICS_CMD = 0x9c,
- STATISTICS_NOTIFICATION = 0x9d,
+ C_STATS = 0x9c,
+ N_STATS = 0x9d,
/* RF-KILL commands and notifications */
- CARD_STATE_NOTIFICATION = 0xa1,
+ N_CARD_STATE = 0xa1,
/* Missed beacons notification */
- MISSED_BEACONS_NOTIFICATION = 0xa2,
+ N_MISSED_BEACONS = 0xa2,
- REPLY_CT_KILL_CONFIG_CMD = 0xa4,
- SENSITIVITY_CMD = 0xa8,
- REPLY_PHY_CALIBRATION_CMD = 0xb0,
- REPLY_RX_PHY_CMD = 0xc0,
- REPLY_RX_MPDU_CMD = 0xc1,
- REPLY_RX = 0xc3,
- REPLY_COMPRESSED_BA = 0xc5,
+ C_CT_KILL_CONFIG = 0xa4,
+ C_SENSITIVITY = 0xa8,
+ C_PHY_CALIBRATION = 0xb0,
+ N_RX_PHY = 0xc0,
+ N_RX_MPDU = 0xc1,
+ N_RX = 0xc3,
+ N_COMPRESSED_BA = 0xc5,
- REPLY_MAX = 0xff
+ IL_CN_MAX = 0xff
};
/******************************************************************************
@@ -163,25 +159,25 @@
*
*****************************************************************************/
-/* iwl_cmd_header flags value */
-#define IWL_CMD_FAILED_MSK 0x40
+/* il_cmd_header flags value */
+#define IL_CMD_FAILED_MSK 0x40
#define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f)
#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
-#define SEQ_TO_INDEX(s) ((s) & 0xff)
-#define INDEX_TO_SEQ(i) ((i) & 0xff)
+#define SEQ_TO_IDX(s) ((s) & 0xff)
+#define IDX_TO_SEQ(i) ((i) & 0xff)
#define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
#define SEQ_RX_FRAME cpu_to_le16(0x8000)
/**
- * struct iwl_cmd_header
+ * struct il_cmd_header
*
* This header format appears in the beginning of each command sent from the
* driver, and each response/notification received from uCode.
*/
-struct iwl_cmd_header {
- u8 cmd; /* Command ID: REPLY_RXON, etc. */
- u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
+struct il_cmd_header {
+ u8 cmd; /* Command ID: C_RXON, etc. */
+ u8 flags; /* 0:5 reserved, 6 abort, 7 internal */
/*
* The driver sets up the sequence number to values of its choosing.
* uCode does not use this value, but passes it back to the driver
@@ -192,29 +188,28 @@
* There is one exception: uCode sets bit 15 when it originates
* the response/notification, i.e. when the response/notification
* is not a direct response to a command sent by the driver. For
- * example, uCode issues REPLY_3945_RX when it sends a received frame
+ * example, uCode issues N_3945_RX when it sends a received frame
* to the driver; it is not a direct response to any driver command.
*
* The Linux driver uses the following format:
*
- * 0:7 tfd index - position within TX queue
- * 8:12 TX queue id
- * 13 reserved
- * 14 huge - driver sets this to indicate command is in the
- * 'huge' storage at the end of the command buffers
- * 15 unsolicited RX or uCode-originated notification
- */
+ * 0:7 tfd idx - position within TX queue
+ * 8:12 TX queue id
+ * 13 reserved
+ * 14 huge - driver sets this to indicate command is in the
+ * 'huge' storage at the end of the command buffers
+ * 15 unsolicited RX or uCode-originated notification
+ */
__le16 sequence;
/* command or response/notification data follows immediately */
u8 data[0];
} __packed;
-
/**
- * struct iwl3945_tx_power
+ * struct il3945_tx_power
*
- * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_SCAN_CMD, REPLY_CHANNEL_SWITCH
+ * Used in C_TX_PWR_TBL, C_SCAN, C_CHANNEL_SWITCH
*
* Each entry contains two values:
* 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
@@ -223,21 +218,21 @@
* 2) Radio gain. This sets the analog gain of the radio Tx path.
* It is a coarser setting, and behaves in a logarithmic (dB) fashion.
*
- * Driver obtains values from struct iwl3945_tx_power power_gain_table[][].
+ * Driver obtains values from struct il3945_tx_power power_gain_table[][].
*/
-struct iwl3945_tx_power {
+struct il3945_tx_power {
u8 tx_gain; /* gain for analog radio */
u8 dsp_atten; /* gain for DSP */
} __packed;
/**
- * struct iwl3945_power_per_rate
+ * struct il3945_power_per_rate
*
- * Used in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ * Used in C_TX_PWR_TBL, C_CHANNEL_SWITCH
*/
-struct iwl3945_power_per_rate {
+struct il3945_power_per_rate {
u8 rate; /* plcp */
- struct iwl3945_tx_power tpc;
+ struct il3945_tx_power tpc;
u8 reserved;
} __packed;
@@ -245,10 +240,10 @@
* iwl4965 rate_n_flags bit fields
*
* rate_n_flags format is used in following iwl4965 commands:
- * REPLY_RX (response only)
- * REPLY_RX_MPDU (response only)
- * REPLY_TX (both command and response)
- * REPLY_TX_LINK_QUALITY_CMD
+ * N_RX (response only)
+ * N_RX_MPDU (response only)
+ * C_TX (both command and response)
+ * C_TX_LINK_QUALITY_CMD
*
* High-throughput (HT) rate format for bits 7:0 (bit 8 must be "1"):
* 2-0: 0) 6 Mbps
@@ -326,17 +321,17 @@
#define RATE_MCS_ANT_ABC_MSK (RATE_MCS_ANT_AB_MSK | RATE_MCS_ANT_C_MSK)
#define RATE_ANT_NUM 3
-#define POWER_TABLE_NUM_ENTRIES 33
-#define POWER_TABLE_NUM_HT_OFDM_ENTRIES 32
-#define POWER_TABLE_CCK_ENTRY 32
+#define POWER_TBL_NUM_ENTRIES 33
+#define POWER_TBL_NUM_HT_OFDM_ENTRIES 32
+#define POWER_TBL_CCK_ENTRY 32
-#define IWL_PWR_NUM_HT_OFDM_ENTRIES 24
-#define IWL_PWR_CCK_ENTRIES 2
+#define IL_PWR_NUM_HT_OFDM_ENTRIES 24
+#define IL_PWR_CCK_ENTRIES 2
/**
- * union iwl4965_tx_power_dual_stream
+ * union il4965_tx_power_dual_stream
*
- * Host format used for REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ * Host format used for C_TX_PWR_TBL, C_CHANNEL_SWITCH
* Use __le32 version (struct tx_power_dual_stream) when building command.
*
* Driver provides radio gain and DSP attenuation settings to device in pairs,
@@ -347,9 +342,9 @@
* For MIMO rates, one value may be different from the other,
* in order to balance the Tx output between the two transmitters.
*
- * See more details in doc for TXPOWER in iwl-4965-hw.h.
+ * See more details in doc for TXPOWER in 4965.h.
*/
-union iwl4965_tx_power_dual_stream {
+union il4965_tx_power_dual_stream {
struct {
u8 radio_tx_gain[2];
u8 dsp_predis_atten[2];
@@ -360,21 +355,21 @@
/**
* struct tx_power_dual_stream
*
- * Table entries in REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ * Table entries in C_TX_PWR_TBL, C_CHANNEL_SWITCH
*
- * Same format as iwl_tx_power_dual_stream, but __le32
+ * Same format as il_tx_power_dual_stream, but __le32
*/
struct tx_power_dual_stream {
__le32 dw;
} __packed;
/**
- * struct iwl4965_tx_power_db
+ * struct il4965_tx_power_db
*
- * Entire table within REPLY_TX_PWR_TABLE_CMD, REPLY_CHANNEL_SWITCH
+ * Entire table within C_TX_PWR_TBL, C_CHANNEL_SWITCH
*/
-struct iwl4965_tx_power_db {
- struct tx_power_dual_stream power_tbl[POWER_TABLE_NUM_ENTRIES];
+struct il4965_tx_power_db {
+ struct tx_power_dual_stream power_tbl[POWER_TBL_NUM_ENTRIES];
} __packed;
/******************************************************************************
@@ -387,7 +382,7 @@
#define INITIALIZE_SUBTYPE (9)
/*
- * ("Initialize") REPLY_ALIVE = 0x1 (response only, not a command)
+ * ("Initialize") N_ALIVE = 0x1 (response only, not a command)
*
* uCode issues this "initialize alive" notification once the initialization
* uCode image has completed its work, and is ready to load the runtime image.
@@ -410,7 +405,7 @@
* 3) Tx gain compensation to balance 4965's 2 Tx chains for MIMO operation,
* for each of 5 frequency ranges.
*/
-struct iwl_init_alive_resp {
+struct il_init_alive_resp {
u8 ucode_minor;
u8 ucode_major;
__le16 reserved1;
@@ -433,9 +428,8 @@
* 2 Tx chains */
} __packed;
-
/**
- * REPLY_ALIVE = 0x1 (response only, not a command)
+ * N_ALIVE = 0x1 (response only, not a command)
*
* uCode issues this "alive" notification once the runtime image is ready
* to receive commands from the driver. This is the *second* "alive"
@@ -454,7 +448,7 @@
* __le32 log_size; log capacity (in number of entries)
* __le32 type; (1) timestamp with each entry, (0) no timestamp
* __le32 wraps; # times uCode has wrapped to top of circular buffer
- * __le32 write_index; next circular buffer entry that uCode would fill
+ * __le32 write_idx; next circular buffer entry that uCode would fill
*
* The header is followed by the circular buffer of log entries. Entries
* with timestamps have the following format:
@@ -511,13 +505,13 @@
* The Linux driver can print both logs to the system log when a uCode error
* occurs.
*/
-struct iwl_alive_resp {
+struct il_alive_resp {
u8 ucode_minor;
u8 ucode_major;
__le16 reserved1;
u8 sw_rev[8];
u8 ver_type;
- u8 ver_subtype; /* not "9" for runtime alive */
+ u8 ver_subtype; /* not "9" for runtime alive */
__le16 reserved2;
__le32 log_event_table_ptr; /* SRAM address for event log */
__le32 error_event_table_ptr; /* SRAM address for error log */
@@ -526,9 +520,9 @@
} __packed;
/*
- * REPLY_ERROR = 0x2 (response only, not a command)
+ * N_ERROR = 0x2 (response only, not a command)
*/
-struct iwl_error_resp {
+struct il_error_resp {
__le32 error_type;
u8 cmd_id;
u8 reserved1;
@@ -554,7 +548,6 @@
RXON_DEV_TYPE_SNIFFER = 6,
};
-
#define RXON_RX_CHAIN_DRIVER_FORCE_MSK cpu_to_le16(0x1 << 0)
#define RXON_RX_CHAIN_DRIVER_FORCE_POS (0)
#define RXON_RX_CHAIN_VALID_MSK cpu_to_le16(0x7 << 1)
@@ -593,7 +586,6 @@
* (according to ON_AIR deassertion) */
#define RXON_FLG_TSF2HOST_MSK cpu_to_le32(1 << 15)
-
/* HT flags */
#define RXON_FLG_CTRL_CHANNEL_LOC_POS (22)
#define RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK cpu_to_le32(0x1 << 22)
@@ -640,7 +632,7 @@
#define RXON_FILTER_BCON_AWARE_MSK cpu_to_le32(1 << 6)
/**
- * REPLY_RXON = 0x10 (command, has simple generic response)
+ * C_RXON = 0x10 (command, has simple generic response)
*
* RXON tunes the radio tuner to a service channel, and sets up a number
* of parameters that are used primarily for Rx, but also for Tx operations.
@@ -653,11 +645,11 @@
* channel.
*
* NOTE: All RXONs wipe clean the internal txpower table. Driver must
- * issue a new REPLY_TX_PWR_TABLE_CMD after each REPLY_RXON (0x10),
+ * issue a new C_TX_PWR_TBL after each C_RXON (0x10),
* regardless of whether RXON_FILTER_ASSOC_MSK is set.
*/
-struct iwl3945_rxon_cmd {
+struct il3945_rxon_cmd {
u8 node_addr[6];
__le16 reserved1;
u8 bssid_addr[6];
@@ -676,7 +668,7 @@
__le16 reserved5;
} __packed;
-struct iwl4965_rxon_cmd {
+struct il4965_rxon_cmd {
u8 node_addr[6];
__le16 reserved1;
u8 bssid_addr[6];
@@ -699,7 +691,7 @@
/* Create a common rxon cmd which will be typecast into the 3945 or 4965
* specific rxon cmd, depending on where it is called from.
*/
-struct iwl_legacy_rxon_cmd {
+struct il_rxon_cmd {
u8 node_addr[6];
__le16 reserved1;
u8 bssid_addr[6];
@@ -721,11 +713,10 @@
u8 reserved5;
} __packed;
-
/*
- * REPLY_RXON_ASSOC = 0x11 (command, has simple generic response)
+ * C_RXON_ASSOC = 0x11 (command, has simple generic response)
*/
-struct iwl3945_rxon_assoc_cmd {
+struct il3945_rxon_assoc_cmd {
__le32 flags;
__le32 filter_flags;
u8 ofdm_basic_rates;
@@ -733,7 +724,7 @@
__le16 reserved;
} __packed;
-struct iwl4965_rxon_assoc_cmd {
+struct il4965_rxon_assoc_cmd {
__le32 flags;
__le32 filter_flags;
u8 ofdm_basic_rates;
@@ -744,17 +735,17 @@
__le16 reserved;
} __packed;
-#define IWL_CONN_MAX_LISTEN_INTERVAL 10
-#define IWL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */
-#define IWL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */
+#define IL_CONN_MAX_LISTEN_INTERVAL 10
+#define IL_MAX_UCODE_BEACON_INTERVAL 4 /* 4096 */
+#define IL39_MAX_UCODE_BEACON_INTERVAL 1 /* 1024 */
/*
- * REPLY_RXON_TIMING = 0x14 (command, has simple generic response)
+ * C_RXON_TIMING = 0x14 (command, has simple generic response)
*/
-struct iwl_rxon_time_cmd {
+struct il_rxon_time_cmd {
__le64 timestamp;
__le16 beacon_interval;
- __le16 atim_window;
+ __le16 atim_win;
__le32 beacon_init_val;
__le16 listen_interval;
u8 dtim_period;
@@ -762,32 +753,32 @@
} __packed;
/*
- * REPLY_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
+ * C_CHANNEL_SWITCH = 0x72 (command, has simple generic response)
*/
-struct iwl3945_channel_switch_cmd {
+struct il3945_channel_switch_cmd {
u8 band;
u8 expect_beacon;
__le16 channel;
__le32 rxon_flags;
__le32 rxon_filter_flags;
__le32 switch_time;
- struct iwl3945_power_per_rate power[IWL_MAX_RATES];
+ struct il3945_power_per_rate power[IL_MAX_RATES];
} __packed;
-struct iwl4965_channel_switch_cmd {
+struct il4965_channel_switch_cmd {
u8 band;
u8 expect_beacon;
__le16 channel;
__le32 rxon_flags;
__le32 rxon_filter_flags;
__le32 switch_time;
- struct iwl4965_tx_power_db tx_power;
+ struct il4965_tx_power_db tx_power;
} __packed;
/*
- * CHANNEL_SWITCH_NOTIFICATION = 0x73 (notification only, not a command)
+ * N_CHANNEL_SWITCH = 0x73 (notification only, not a command)
*/
-struct iwl_csa_notification {
+struct il_csa_notification {
__le16 band;
__le16 channel;
__le32 status; /* 0 - OK, 1 - fail */
@@ -800,22 +791,22 @@
*****************************************************************************/
/**
- * struct iwl_ac_qos -- QOS timing params for REPLY_QOS_PARAM
- * One for each of 4 EDCA access categories in struct iwl_qosparam_cmd
+ * struct il_ac_qos -- QOS timing params for C_QOS_PARAM
+ * One for each of 4 EDCA access categories in struct il_qosparam_cmd
*
- * @cw_min: Contention window, start value in numbers of slots.
+ * @cw_min: Contention win, start value in numbers of slots.
* Should be a power-of-2, minus 1. Device's default is 0x0f.
- * @cw_max: Contention window, max value in numbers of slots.
+ * @cw_max: Contention win, max value in numbers of slots.
* Should be a power-of-2, minus 1. Device's default is 0x3f.
* @aifsn: Number of slots in Arbitration Interframe Space (before
* performing random backoff timing prior to Tx). Device default 1.
* @edca_txop: Length of Tx opportunity, in uSecs. Device default is 0.
*
- * Device will automatically increase contention window by (2*CW) + 1 for each
+ * Device will automatically increase contention win by (2*CW) + 1 for each
* transmission retry. Device uses cw_max as a bit mask, ANDed with new CW
* value, to cap the CW value.
*/
-struct iwl_ac_qos {
+struct il_ac_qos {
__le16 cw_min;
__le16 cw_max;
u8 aifsn;
@@ -832,14 +823,14 @@
#define AC_NUM 4
/*
- * REPLY_QOS_PARAM = 0x13 (command, has simple generic response)
+ * C_QOS_PARAM = 0x13 (command, has simple generic response)
*
* This command sets up timings for each of the 4 prioritized EDCA Tx FIFOs
* 0: Background, 1: Best Effort, 2: Video, 3: Voice.
*/
-struct iwl_qosparam_cmd {
+struct il_qosparam_cmd {
__le32 qos_flags;
- struct iwl_ac_qos ac[AC_NUM];
+ struct il_ac_qos ac[AC_NUM];
} __packed;
/******************************************************************************
@@ -852,15 +843,15 @@
*/
/* Special, dedicated locations within device's station table */
-#define IWL_AP_ID 0
-#define IWL_STA_ID 2
-#define IWL3945_BROADCAST_ID 24
-#define IWL3945_STATION_COUNT 25
-#define IWL4965_BROADCAST_ID 31
-#define IWL4965_STATION_COUNT 32
+#define IL_AP_ID 0
+#define IL_STA_ID 2
+#define IL3945_BROADCAST_ID 24
+#define IL3945_STATION_COUNT 25
+#define IL4965_BROADCAST_ID 31
+#define IL4965_STATION_COUNT 32
-#define IWL_STATION_COUNT 32 /* MAX(3945,4965)*/
-#define IWL_INVALID_STATION 255
+#define IL_STATION_COUNT 32 /* MAX(3945,4965) */
+#define IL_INVALID_STATION 255
#define STA_FLG_TX_RATE_MSK cpu_to_le32(1 << 2)
#define STA_FLG_PWR_SAVE_MSK cpu_to_le32(1 << 8)
@@ -901,11 +892,11 @@
#define STA_MODIFY_DELBA_TID_MSK 0x10
#define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20
-/* Receiver address (actually, Rx station's index into station table),
+/* Receiver address (actually, Rx station's idx into station table),
* combined with Traffic ID (QOS priority), in format used by Tx Scheduler */
#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid))
-struct iwl4965_keyinfo {
+struct il4965_keyinfo {
__le16 key_flags;
u8 tkip_rx_tsc_byte2; /* TSC[2] for key mix ph1 detection */
u8 reserved1;
@@ -918,12 +909,12 @@
/**
* struct sta_id_modify
* @addr[ETH_ALEN]: station's MAC address
- * @sta_id: index of station in uCode's station table
+ * @sta_id: idx of station in uCode's station table
* @modify_mask: STA_MODIFY_*, 1: modify, 0: don't change
*
- * Driver selects unused table index when adding new station,
- * or the index to a pre-existing station entry when modifying that station.
- * Some indexes have special purposes (IWL_AP_ID, index 0, is for AP).
+ * Driver selects unused table idx when adding new station,
+ * or the idx to a pre-existing station entry when modifying that station.
+ * Some idxes have special purposes (IL_AP_ID, idx 0, is for AP).
*
* modify_mask flags select which parameters to modify vs. leave alone.
*/
@@ -936,15 +927,15 @@
} __packed;
/*
- * REPLY_ADD_STA = 0x18 (command)
+ * C_ADD_STA = 0x18 (command)
*
* The device contains an internal table of per-station information,
* with info on security keys, aggregation parameters, and Tx rates for
* initial Tx attempt and any retries (4965 devices uses
- * REPLY_TX_LINK_QUALITY_CMD,
- * 3945 uses REPLY_RATE_SCALE to set up rate tables).
+ * C_TX_LINK_QUALITY_CMD,
+ * 3945 uses C_RATE_SCALE to set up rate tables).
*
- * REPLY_ADD_STA sets up the table entry for one station, either creating
+ * C_ADD_STA sets up the table entry for one station, either creating
* a new entry, or modifying a pre-existing one.
*
* NOTE: RXON command (without "associated" bit set) wipes the station table
@@ -954,20 +945,20 @@
* their own txpower/rate setup data).
*
* When getting started on a new channel, driver must set up the
- * IWL_BROADCAST_ID entry (last entry in the table). For a client
+ * IL_BROADCAST_ID entry (last entry in the table). For a client
* station in a BSS, once an AP is selected, driver sets up the AP STA
- * in the IWL_AP_ID entry (1st entry in the table). BROADCAST and AP
+ * in the IL_AP_ID entry (1st entry in the table). BROADCAST and AP
* are all that are needed for a BSS client station. If the device is
* used as AP, or in an IBSS network, driver must set up station table
- * entries for all STAs in network, starting with index IWL_STA_ID.
+ * entries for all STAs in network, starting with idx IL_STA_ID.
*/
-struct iwl3945_addsta_cmd {
+struct il3945_addsta_cmd {
u8 mode; /* 1: modify existing, 0: add new station */
u8 reserved[3];
struct sta_id_modify sta;
- struct iwl4965_keyinfo key;
- __le32 station_flags; /* STA_FLG_* */
+ struct il4965_keyinfo key;
+ __le32 station_flags; /* STA_FLG_* */
__le32 station_flags_msk; /* STA_FLG_* */
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
@@ -990,12 +981,12 @@
__le16 add_immediate_ba_ssn;
} __packed;
-struct iwl4965_addsta_cmd {
+struct il4965_addsta_cmd {
u8 mode; /* 1: modify existing, 0: add new station */
u8 reserved[3];
struct sta_id_modify sta;
- struct iwl4965_keyinfo key;
- __le32 station_flags; /* STA_FLG_* */
+ struct il4965_keyinfo key;
+ __le32 station_flags; /* STA_FLG_* */
__le32 station_flags_msk; /* STA_FLG_* */
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
@@ -1003,7 +994,7 @@
* Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
__le16 tid_disable_tx;
- __le16 reserved1;
+ __le16 reserved1;
/* TID for which to add block-ack support.
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
@@ -1028,12 +1019,12 @@
} __packed;
/* Wrapper struct for 3945 and 4965 addsta_cmd structures */
-struct iwl_legacy_addsta_cmd {
+struct il_addsta_cmd {
u8 mode; /* 1: modify existing, 0: add new station */
u8 reserved[3];
struct sta_id_modify sta;
- struct iwl4965_keyinfo key;
- __le32 station_flags; /* STA_FLG_* */
+ struct il4965_keyinfo key;
+ __le32 station_flags; /* STA_FLG_* */
__le32 station_flags_msk; /* STA_FLG_* */
/* bit field to disable (1) or enable (0) Tx for Traffic ID (TID)
@@ -1041,7 +1032,7 @@
* Set modify_mask bit STA_MODIFY_TID_DISABLE_TX to use this field. */
__le16 tid_disable_tx;
- __le16 rate_n_flags; /* 3945 only */
+ __le16 rate_n_flags; /* 3945 only */
/* TID for which to add block-ack support.
* Set modify_mask bit STA_MODIFY_ADDBA_TID_MSK to use this field. */
@@ -1065,51 +1056,50 @@
__le16 reserved2;
} __packed;
-
#define ADD_STA_SUCCESS_MSK 0x1
-#define ADD_STA_NO_ROOM_IN_TABLE 0x2
+#define ADD_STA_NO_ROOM_IN_TBL 0x2
#define ADD_STA_NO_BLOCK_ACK_RESOURCE 0x4
#define ADD_STA_MODIFY_NON_EXIST_STA 0x8
/*
- * REPLY_ADD_STA = 0x18 (response)
+ * C_ADD_STA = 0x18 (response)
*/
-struct iwl_add_sta_resp {
- u8 status; /* ADD_STA_* */
+struct il_add_sta_resp {
+ u8 status; /* ADD_STA_* */
} __packed;
#define REM_STA_SUCCESS_MSK 0x1
/*
- * REPLY_REM_STA = 0x19 (response)
+ * C_REM_STA = 0x19 (response)
*/
-struct iwl_rem_sta_resp {
+struct il_rem_sta_resp {
u8 status;
} __packed;
/*
- * REPLY_REM_STA = 0x19 (command)
+ * C_REM_STA = 0x19 (command)
*/
-struct iwl_rem_sta_cmd {
- u8 num_sta; /* number of removed stations */
+struct il_rem_sta_cmd {
+ u8 num_sta; /* number of removed stations */
u8 reserved[3];
- u8 addr[ETH_ALEN]; /* MAC addr of the first station */
+ u8 addr[ETH_ALEN]; /* MAC addr of the first station */
u8 reserved2[2];
} __packed;
-#define IWL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0))
-#define IWL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1))
-#define IWL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2))
-#define IWL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3))
-#define IWL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00)
+#define IL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0))
+#define IL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1))
+#define IL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2))
+#define IL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3))
+#define IL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00)
-#define IWL_DROP_SINGLE 0
-#define IWL_DROP_SELECTED 1
-#define IWL_DROP_ALL 2
+#define IL_DROP_SINGLE 0
+#define IL_DROP_SELECTED 1
+#define IL_DROP_ALL 2
/*
* REPLY_WEP_KEY = 0x20
*/
-struct iwl_wep_key {
- u8 key_index;
+struct il_wep_key {
+ u8 key_idx;
u8 key_offset;
u8 reserved1[2];
u8 key_size;
@@ -1117,12 +1107,12 @@
u8 key[16];
} __packed;
-struct iwl_wep_cmd {
+struct il_wep_cmd {
u8 num_keys;
u8 global_key_type;
u8 flags;
u8 reserved;
- struct iwl_wep_key key[0];
+ struct il_wep_key key[0];
} __packed;
#define WEP_KEY_WEP_TYPE 1
@@ -1168,8 +1158,7 @@
#define RX_MPDU_RES_STATUS_TTAK_OK (1 << 7)
#define RX_MPDU_RES_STATUS_DEC_DONE_MSK (0x800)
-
-struct iwl3945_rx_frame_stats {
+struct il3945_rx_frame_stats {
u8 phy_count;
u8 id;
u8 rssi;
@@ -1179,7 +1168,7 @@
u8 payload[0];
} __packed;
-struct iwl3945_rx_frame_hdr {
+struct il3945_rx_frame_hdr {
__le16 channel;
__le16 phy_flags;
u8 reserved1;
@@ -1188,73 +1177,71 @@
u8 payload[0];
} __packed;
-struct iwl3945_rx_frame_end {
+struct il3945_rx_frame_end {
__le32 status;
__le64 timestamp;
__le32 beacon_timestamp;
} __packed;
/*
- * REPLY_3945_RX = 0x1b (response only, not a command)
+ * N_3945_RX = 0x1b (response only, not a command)
*
* NOTE: DO NOT dereference from casts to this structure
* It is provided only for calculating minimum data set size.
* The actual offsets of the hdr and end are dynamic based on
* stats.phy_count
*/
-struct iwl3945_rx_frame {
- struct iwl3945_rx_frame_stats stats;
- struct iwl3945_rx_frame_hdr hdr;
- struct iwl3945_rx_frame_end end;
+struct il3945_rx_frame {
+ struct il3945_rx_frame_stats stats;
+ struct il3945_rx_frame_hdr hdr;
+ struct il3945_rx_frame_end end;
} __packed;
-#define IWL39_RX_FRAME_SIZE (4 + sizeof(struct iwl3945_rx_frame))
+#define IL39_RX_FRAME_SIZE (4 + sizeof(struct il3945_rx_frame))
/* Fixed (non-configurable) rx data from phy */
-#define IWL49_RX_RES_PHY_CNT 14
-#define IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
-#define IWL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
-#define IWL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
-#define IWL49_AGC_DB_POS (7)
-struct iwl4965_rx_non_cfg_phy {
+#define IL49_RX_RES_PHY_CNT 14
+#define IL49_RX_PHY_FLAGS_ANTENNAE_OFFSET (4)
+#define IL49_RX_PHY_FLAGS_ANTENNAE_MASK (0x70)
+#define IL49_AGC_DB_MASK (0x3f80) /* MASK(7,13) */
+#define IL49_AGC_DB_POS (7)
+struct il4965_rx_non_cfg_phy {
__le16 ant_selection; /* ant A bit 4, ant B bit 5, ant C bit 6 */
__le16 agc_info; /* agc code 0:6, agc dB 7:13, reserved 14:15 */
u8 rssi_info[6]; /* we use even entries, 0/2/4 for A/B/C rssi */
u8 pad[0];
} __packed;
-
/*
- * REPLY_RX = 0xc3 (response only, not a command)
+ * N_RX = 0xc3 (response only, not a command)
* Used only for legacy (non 11n) frames.
*/
-struct iwl_rx_phy_res {
- u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
+struct il_rx_phy_res {
+ u8 non_cfg_phy_cnt; /* non configurable DSP phy data byte count */
u8 cfg_phy_cnt; /* configurable DSP phy data byte count */
u8 stat_id; /* configurable DSP phy data set ID */
u8 reserved1;
__le64 timestamp; /* TSF at on air rise */
- __le32 beacon_time_stamp; /* beacon at on-air rise */
+ __le32 beacon_time_stamp; /* beacon at on-air rise */
__le16 phy_flags; /* general phy flags: band, modulation, ... */
__le16 channel; /* channel number */
- u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
+ u8 non_cfg_phy_buf[32]; /* for various implementations of non_cfg_phy */
__le32 rate_n_flags; /* RATE_MCS_* */
__le16 byte_count; /* frame's byte-count */
__le16 frame_time; /* frame's time on the air */
} __packed;
-struct iwl_rx_mpdu_res_start {
+struct il_rx_mpdu_res_start {
__le16 byte_count;
__le16 reserved;
} __packed;
-
/******************************************************************************
* (5)
* Tx Commands & Responses:
*
- * Driver must place each REPLY_TX command into one of the prioritized Tx
+ * Driver must place each C_TX command into one of the prioritized Tx
* queues in host DRAM, shared between driver and device (see comments for
* SCD registers and Tx/Rx Queues). When the device's Tx scheduler and uCode
* are preparing to transmit, the device pulls the Tx command over the PCI
@@ -1264,18 +1251,18 @@
* uCode handles all timing and protocol related to control frames
* (RTS/CTS/ACK), based on flags in the Tx command. uCode and Tx scheduler
* handle reception of block-acks; uCode updates the host driver via
- * REPLY_COMPRESSED_BA.
+ * N_COMPRESSED_BA.
*
* uCode handles retrying Tx when an ACK is expected but not received.
* This includes trying lower data rates than the one requested in the Tx
- * command, as set up by the REPLY_RATE_SCALE (for 3945) or
- * REPLY_TX_LINK_QUALITY_CMD (4965).
+ * command, as set up by the C_RATE_SCALE (for 3945) or
+ * C_TX_LINK_QUALITY_CMD (4965).
*
- * Driver sets up transmit power for various rates via REPLY_TX_PWR_TABLE_CMD.
+ * Driver sets up transmit power for various rates via C_TX_PWR_TBL.
* This command must be executed after every RXON command, before Tx can occur.
*****************************************************************************/
-/* REPLY_TX Tx flags field */
+/* C_TX Tx flags field */
/*
* 1: Use Request-To-Send protocol before this frame.
@@ -1296,8 +1283,8 @@
#define TX_CMD_FLG_ACK_MSK cpu_to_le32(1 << 3)
/* For 4965 devices:
- * 1: Use rate scale table (see REPLY_TX_LINK_QUALITY_CMD).
- * Tx command's initial_rate_index indicates first rate to try;
+ * 1: Use rate scale table (see C_TX_LINK_QUALITY_CMD).
+ * Tx command's initial_rate_idx indicates first rate to try;
* uCode walks through table for additional Tx attempts.
* 0: Use Tx rate/MCS from Tx command's rate_n_flags field.
* This rate will be used for all Tx attempts; it will not be scaled. */
@@ -1322,7 +1309,7 @@
/* 1: uCode overrides sequence control field in MAC header.
* 0: Driver provides sequence control field in MAC header.
* Set this for management frames, non-QOS data frames, non-unicast frames,
- * and also in Tx command embedded in REPLY_SCAN_CMD for active scans. */
+ * and also in Tx command embedded in C_SCAN for active scans. */
#define TX_CMD_FLG_SEQ_CTL_MSK cpu_to_le32(1 << 13)
/* 1: This frame is non-last MPDU; more fragments are coming.
@@ -1349,7 +1336,6 @@
/* HCCA-AP - disable duration overwriting. */
#define TX_CMD_FLG_DUR_MSK cpu_to_le32(1 << 25)
-
/*
* TX command security control
*/
@@ -1369,10 +1355,10 @@
#define TKIP_ICV_LEN 4
/*
- * REPLY_TX = 0x1c (command)
+ * C_TX = 0x1c (command)
*/
-struct iwl3945_tx_cmd {
+struct il3945_tx_cmd {
/*
* MPDU byte count:
* MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
@@ -1434,9 +1420,9 @@
} __packed;
/*
- * REPLY_TX = 0x1c (response)
+ * C_TX = 0x1c (response)
*/
-struct iwl3945_tx_resp {
+struct il3945_tx_resp {
u8 failure_rts;
u8 failure_frame;
u8 bt_kill_count;
@@ -1445,19 +1431,18 @@
__le32 status; /* TX status */
} __packed;
-
/*
* 4965 uCode updates these Tx attempt count values in host DRAM.
* Used for managing Tx retries when expecting block-acks.
* Driver should set these fields to 0.
*/
-struct iwl_dram_scratch {
+struct il_dram_scratch {
u8 try_cnt; /* Tx attempts */
u8 bt_kill_cnt; /* Tx attempts blocked by Bluetooth device */
__le16 reserved;
} __packed;
-struct iwl_tx_cmd {
+struct il_tx_cmd {
/*
* MPDU byte count:
* MAC header (24/26/30/32 bytes) + 2 bytes pad if 26/30 header size,
@@ -1481,7 +1466,7 @@
/* uCode may modify this field of the Tx command (in host DRAM!).
* Driver must also set dram_lsb_ptr and dram_msb_ptr in this cmd. */
- struct iwl_dram_scratch scratch;
+ struct il_dram_scratch scratch;
/* Rate for *all* Tx attempts, if TX_CMD_FLG_STA_RATE_MSK is cleared. */
__le32 rate_n_flags; /* RATE_MCS_* */
@@ -1493,13 +1478,13 @@
u8 sec_ctl; /* TX_CMD_SEC_* */
/*
- * Index into rate table (see REPLY_TX_LINK_QUALITY_CMD) for initial
+ * Index into rate table (see C_TX_LINK_QUALITY_CMD) for initial
* Tx attempt, if TX_CMD_FLG_STA_RATE_MSK is set. Normally "0" for
* data frames, this field may be used to selectively reduce initial
* rate (via non-0 value) for special frames (e.g. management), while
* still supporting rate scaling for all frames.
*/
- u8 initial_rate_index;
+ u8 initial_rate_idx;
u8 reserved;
u8 key[16];
__le16 next_frame_flags;
@@ -1628,12 +1613,12 @@
};
enum {
- TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
+ TX_STATUS_MSK = 0x000000ff, /* bits 0:7 */
TX_STATUS_DELAY_MSK = 0x00000040,
TX_STATUS_ABORT_MSK = 0x00000080,
TX_PACKET_MODE_MSK = 0x0000ff00, /* bits 8:15 */
TX_FIFO_NUMBER_MSK = 0x00070000, /* bits 16:18 */
- TX_RESERVED = 0x00780000, /* bits 19:22 */
+ TX_RESERVED = 0x00780000, /* bits 19:22 */
TX_POWER_PA_DETECT_MSK = 0x7f800000, /* bits 23:30 */
TX_ABORT_REQUIRED_MSK = 0x80000000, /* bits 31:31 */
};
@@ -1671,7 +1656,7 @@
#define AGG_TX_STATE_SEQ_NUM_MSK 0xffff0000
/*
- * REPLY_TX = 0x1c (response)
+ * C_TX = 0x1c (response)
*
* This response may be in one of two slightly different formats, indicated
* by the frame_count field:
@@ -1697,7 +1682,7 @@
__le16 sequence;
} __packed;
-struct iwl4965_tx_resp {
+struct il4965_tx_resp {
u8 frame_count; /* 1 no aggregation, >1 aggregation */
u8 bt_kill_count; /* # blocked by bluetooth (unused for agg) */
u8 failure_rts; /* # failures due to unsuccessful RTS */
@@ -1730,16 +1715,16 @@
*/
union {
__le32 status;
- struct agg_tx_status agg_status[0]; /* for each agg frame */
+ struct agg_tx_status agg_status[0]; /* for each agg frame */
} u;
} __packed;
/*
- * REPLY_COMPRESSED_BA = 0xc5 (response only, not a command)
+ * N_COMPRESSED_BA = 0xc5 (response only, not a command)
*
* Reports Block-Acknowledge from recipient station
*/
-struct iwl_compressed_ba_resp {
+struct il_compressed_ba_resp {
__le32 sta_addr_lo32;
__le16 sta_addr_hi16;
__le16 reserved;
@@ -1754,30 +1739,29 @@
} __packed;
/*
- * REPLY_TX_PWR_TABLE_CMD = 0x97 (command, has simple generic response)
+ * C_TX_PWR_TBL = 0x97 (command, has simple generic response)
*
- * See details under "TXPOWER" in iwl-4965-hw.h.
+ * See details under "TXPOWER" in 4965.h.
*/
-struct iwl3945_txpowertable_cmd {
+struct il3945_txpowertable_cmd {
u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
u8 reserved;
__le16 channel;
- struct iwl3945_power_per_rate power[IWL_MAX_RATES];
+ struct il3945_power_per_rate power[IL_MAX_RATES];
} __packed;
-struct iwl4965_txpowertable_cmd {
+struct il4965_txpowertable_cmd {
u8 band; /* 0: 5 GHz, 1: 2.4 GHz */
u8 reserved;
__le16 channel;
- struct iwl4965_tx_power_db tx_power;
+ struct il4965_tx_power_db tx_power;
} __packed;
-
/**
- * struct iwl3945_rate_scaling_cmd - Rate Scaling Command & Response
+ * struct il3945_rate_scaling_cmd - Rate Scaling Command & Response
*
- * REPLY_RATE_SCALE = 0x47 (command, has simple generic response)
+ * C_RATE_SCALE = 0x47 (command, has simple generic response)
*
* NOTE: The table of rates passed to the uCode via the
* RATE_SCALE command sets up the corresponding order of
@@ -1786,22 +1770,21 @@
*
* For example, if you set 9MB (PLCP 0x0f) as the first
* rate in the rate table, the bit mask for that rate
- * when passed through ofdm_basic_rates on the REPLY_RXON
+ * when passed through ofdm_basic_rates on the C_RXON
* command would be bit 0 (1 << 0)
*/
-struct iwl3945_rate_scaling_info {
+struct il3945_rate_scaling_info {
__le16 rate_n_flags;
u8 try_cnt;
- u8 next_rate_index;
+ u8 next_rate_idx;
} __packed;
-struct iwl3945_rate_scaling_cmd {
+struct il3945_rate_scaling_cmd {
u8 table_id;
u8 reserved[3];
- struct iwl3945_rate_scaling_info table[IWL_MAX_RATES];
+ struct il3945_rate_scaling_info table[IL_MAX_RATES];
} __packed;
-
/*RS_NEW_API: only TLC_RTS remains and moved to bit 0 */
#define LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK (1 << 0)
@@ -1816,28 +1799,27 @@
#define LINK_QUAL_ANT_B_MSK (1 << 1)
#define LINK_QUAL_ANT_MSK (LINK_QUAL_ANT_A_MSK|LINK_QUAL_ANT_B_MSK)
-
/**
- * struct iwl_link_qual_general_params
+ * struct il_link_qual_general_params
*
- * Used in REPLY_TX_LINK_QUALITY_CMD
+ * Used in C_TX_LINK_QUALITY_CMD
*/
-struct iwl_link_qual_general_params {
+struct il_link_qual_general_params {
u8 flags;
- /* No entries at or above this (driver chosen) index contain MIMO */
+ /* No entries at or above this (driver chosen) idx contain MIMO */
u8 mimo_delimiter;
/* Best single antenna to use for single stream (legacy, SISO). */
u8 single_stream_ant_msk; /* LINK_QUAL_ANT_* */
/* Best antennas to use for MIMO (unused for 4965, assumes both). */
- u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
+ u8 dual_stream_ant_msk; /* LINK_QUAL_ANT_* */
/*
* If driver needs to use different initial rates for different
* EDCA QOS access categories (as implemented by tx fifos 0-3),
- * this table will set that up, by indicating the indexes in the
+ * this table will set that up, by indicating the idxes in the
* rs_table[LINK_QUAL_MAX_RETRY_NUM] rate table at which to start.
* Otherwise, driver should set all entries to 0.
*
@@ -1845,10 +1827,10 @@
* 0 = Background, 1 = Best Effort (normal), 2 = Video, 3 = Voice
* TX FIFOs above 3 use same value (typically 0) as TX FIFO 3.
*/
- u8 start_rate_index[LINK_QUAL_AC_NUM];
+ u8 start_rate_idx[LINK_QUAL_AC_NUM];
} __packed;
-#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */
+#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */
#define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000)
#define LINK_QUAL_AGG_TIME_LIMIT_MIN (100)
@@ -1861,11 +1843,11 @@
#define LINK_QUAL_AGG_FRAME_LIMIT_MIN (0)
/**
- * struct iwl_link_qual_agg_params
+ * struct il_link_qual_agg_params
*
- * Used in REPLY_TX_LINK_QUALITY_CMD
+ * Used in C_TX_LINK_QUALITY_CMD
*/
-struct iwl_link_qual_agg_params {
+struct il_link_qual_agg_params {
/*
*Maximum number of uSec in aggregation.
@@ -1892,9 +1874,9 @@
} __packed;
/*
- * REPLY_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
+ * C_TX_LINK_QUALITY_CMD = 0x4e (command, has simple generic response)
*
- * For 4965 devices only; 3945 uses REPLY_RATE_SCALE.
+ * For 4965 devices only; 3945 uses C_RATE_SCALE.
*
* Each station in the 4965 device's internal station table has its own table
* of 16
@@ -1903,13 +1885,13 @@
* one station.
*
* NOTE: Station must already be in 4965 device's station table.
- * Use REPLY_ADD_STA.
+ * Use C_ADD_STA.
*
* The rate scaling procedures described below work well. Of course, other
* procedures are possible, and may work better for particular environments.
*
*
- * FILLING THE RATE TABLE
+ * FILLING THE RATE TBL
*
* Given a particular initial rate and mode, as determined by the rate
* scaling algorithm described below, the Linux driver uses the following
@@ -1948,13 +1930,13 @@
* speculative mode as the new current active mode.
*
* Each history set contains, separately for each possible rate, data for a
- * sliding window of the 62 most recent tx attempts at that rate. The data
+ * sliding win of the 62 most recent tx attempts at that rate. The data
* includes a shifting bitmap of success(1)/failure(0), and sums of successful
* and attempted frames, from which the driver can additionally calculate a
* success ratio (success / attempted) and number of failures
- * (attempted - success), and control the size of the window (attempted).
+ * (attempted - success), and control the size of the win (attempted).
* The driver uses the bit map to remove successes from the success sum, as
- * the oldest tx attempts fall out of the window.
+ * the oldest tx attempts fall out of the win.
*
* When the 4965 device makes multiple tx attempts for a given frame, each
* attempt might be at a different rate, and have different modulation
@@ -1966,7 +1948,7 @@
*
* When using block-ack (aggregation), all frames are transmitted at the same
* rate, since there is no per-attempt acknowledgment from the destination
- * station. The Tx response struct iwl_tx_resp indicates the Tx rate in
+ * station. The Tx response struct il_tx_resp indicates the Tx rate in
* rate_n_flags field. After receiving a block-ack, the driver can update
* history for the entire block all at once.
*
@@ -2016,8 +1998,8 @@
* good performance; higher rate is sure to have poorer success.
*
* 6) Re-evaluate the rate after each tx frame. If working with block-
- * acknowledge, history and statistics may be calculated for the entire
- * block (including prior history that fits within the history windows),
+ * acknowledge, history and stats may be calculated for the entire
+ * block (including prior history that fits within the history wins),
* before re-evaluation.
*
* FINDING BEST STARTING MODULATION MODE:
@@ -2079,22 +2061,22 @@
* legacy), and then repeat the search process.
*
*/
-struct iwl_link_quality_cmd {
+struct il_link_quality_cmd {
/* Index of destination/recipient station in uCode's station table */
u8 sta_id;
u8 reserved1;
__le16 control; /* not used */
- struct iwl_link_qual_general_params general_params;
- struct iwl_link_qual_agg_params agg_params;
+ struct il_link_qual_general_params general_params;
+ struct il_link_qual_agg_params agg_params;
/*
- * Rate info; when using rate-scaling, Tx command's initial_rate_index
- * specifies 1st Tx rate attempted, via index into this table.
+ * Rate info; when using rate-scaling, Tx command's initial_rate_idx
+ * specifies 1st Tx rate attempted, via idx into this table.
* 4965 devices works its way through table when retrying Tx.
*/
struct {
- __le32 rate_n_flags; /* RATE_MCS_*, IWL_RATE_* */
+ __le32 rate_n_flags; /* RATE_MCS_*, RATE_* */
} rs_table[LINK_QUAL_MAX_RETRY_NUM];
__le32 reserved2;
} __packed;
@@ -2117,13 +2099,13 @@
#define BT_MAX_KILL_DEF (0x5)
/*
- * REPLY_BT_CONFIG = 0x9b (command, has simple generic response)
+ * C_BT_CONFIG = 0x9b (command, has simple generic response)
*
* 3945 and 4965 devices support hardware handshake with Bluetooth device on
* same platform. Bluetooth device alerts wireless device when it will Tx;
* wireless device can delay or kill its own Tx to accommodate.
*/
-struct iwl_bt_cmd {
+struct il_bt_cmd {
u8 flags;
u8 lead_time;
u8 max_kill;
@@ -2132,7 +2114,6 @@
__le32 kill_cts_mask;
} __packed;
-
/******************************************************************************
* (6)
* Spectrum Management (802.11h) Commands, Responses, Notifications:
@@ -2150,18 +2131,18 @@
RXON_FILTER_ASSOC_MSK | \
RXON_FILTER_BCON_AWARE_MSK)
-struct iwl_measure_channel {
+struct il_measure_channel {
__le32 duration; /* measurement duration in extended beacon
* format */
u8 channel; /* channel to measure */
- u8 type; /* see enum iwl_measure_type */
+ u8 type; /* see enum il_measure_type */
__le16 reserved;
} __packed;
/*
- * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (command)
+ * C_SPECTRUM_MEASUREMENT = 0x74 (command)
*/
-struct iwl_spectrum_cmd {
+struct il_spectrum_cmd {
__le16 len; /* number of bytes starting from token */
u8 token; /* token id */
u8 id; /* measurement id -- 0 or 1 */
@@ -2174,13 +2155,13 @@
__le32 filter_flags; /* rxon filter flags */
__le16 channel_count; /* minimum 1, maximum 10 */
__le16 reserved3;
- struct iwl_measure_channel channels[10];
+ struct il_measure_channel channels[10];
} __packed;
/*
- * REPLY_SPECTRUM_MEASUREMENT_CMD = 0x74 (response)
+ * C_SPECTRUM_MEASUREMENT = 0x74 (response)
*/
-struct iwl_spectrum_resp {
+struct il_spectrum_resp {
u8 token;
u8 id; /* id of the prior command replaced, or 0xff */
__le16 status; /* 0 - command will be handled
@@ -2188,57 +2169,57 @@
* measurement) */
} __packed;
-enum iwl_measurement_state {
- IWL_MEASUREMENT_START = 0,
- IWL_MEASUREMENT_STOP = 1,
+enum il_measurement_state {
+ IL_MEASUREMENT_START = 0,
+ IL_MEASUREMENT_STOP = 1,
};
-enum iwl_measurement_status {
- IWL_MEASUREMENT_OK = 0,
- IWL_MEASUREMENT_CONCURRENT = 1,
- IWL_MEASUREMENT_CSA_CONFLICT = 2,
- IWL_MEASUREMENT_TGH_CONFLICT = 3,
+enum il_measurement_status {
+ IL_MEASUREMENT_OK = 0,
+ IL_MEASUREMENT_CONCURRENT = 1,
+ IL_MEASUREMENT_CSA_CONFLICT = 2,
+ IL_MEASUREMENT_TGH_CONFLICT = 3,
/* 4-5 reserved */
- IWL_MEASUREMENT_STOPPED = 6,
- IWL_MEASUREMENT_TIMEOUT = 7,
- IWL_MEASUREMENT_PERIODIC_FAILED = 8,
+ IL_MEASUREMENT_STOPPED = 6,
+ IL_MEASUREMENT_TIMEOUT = 7,
+ IL_MEASUREMENT_PERIODIC_FAILED = 8,
};
#define NUM_ELEMENTS_IN_HISTOGRAM 8
-struct iwl_measurement_histogram {
+struct il_measurement_histogram {
__le32 ofdm[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 0.8usec counts */
__le32 cck[NUM_ELEMENTS_IN_HISTOGRAM]; /* in 1usec counts */
} __packed;
/* clear channel availability counters */
-struct iwl_measurement_cca_counters {
+struct il_measurement_cca_counters {
__le32 ofdm;
__le32 cck;
} __packed;
-enum iwl_measure_type {
- IWL_MEASURE_BASIC = (1 << 0),
- IWL_MEASURE_CHANNEL_LOAD = (1 << 1),
- IWL_MEASURE_HISTOGRAM_RPI = (1 << 2),
- IWL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
- IWL_MEASURE_FRAME = (1 << 4),
+enum il_measure_type {
+ IL_MEASURE_BASIC = (1 << 0),
+ IL_MEASURE_CHANNEL_LOAD = (1 << 1),
+ IL_MEASURE_HISTOGRAM_RPI = (1 << 2),
+ IL_MEASURE_HISTOGRAM_NOISE = (1 << 3),
+ IL_MEASURE_FRAME = (1 << 4),
/* bits 5:6 are reserved */
- IWL_MEASURE_IDLE = (1 << 7),
+ IL_MEASURE_IDLE = (1 << 7),
};
/*
- * SPECTRUM_MEASURE_NOTIFICATION = 0x75 (notification only, not a command)
+ * N_SPECTRUM_MEASUREMENT = 0x75 (notification only, not a command)
*/
-struct iwl_spectrum_notification {
+struct il_spectrum_notification {
u8 id; /* measurement id -- 0 or 1 */
u8 token;
- u8 channel_index; /* index in measurement channel list */
+ u8 channel_idx; /* idx in measurement channel list */
u8 state; /* 0 - start, 1 - stop */
__le32 start_time; /* lower 32-bits of TSF */
u8 band; /* 0 - 5.2GHz, 1 - 2.4GHz */
u8 channel;
- u8 type; /* see enum iwl_measurement_type */
+ u8 type; /* see enum il_measurement_type */
u8 reserved1;
/* NOTE: cca_ofdm, cca_cck, basic_type, and histogram are only only
* valid if applicable for measurement type requested. */
@@ -2248,9 +2229,9 @@
u8 basic_type; /* 0 - bss, 1 - ofdm preamble, 2 -
* unidentified */
u8 reserved2[3];
- struct iwl_measurement_histogram histogram;
+ struct il_measurement_histogram histogram;
__le32 stop_time; /* lower 32-bits of TSF */
- __le32 status; /* see iwl_measurement_status */
+ __le32 status; /* see il_measurement_status */
} __packed;
/******************************************************************************
@@ -2260,10 +2241,10 @@
*****************************************************************************/
/**
- * struct iwl_powertable_cmd - Power Table Command
+ * struct il_powertable_cmd - Power Table Command
* @flags: See below:
*
- * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
+ * C_POWER_TBL = 0x77 (command, has simple generic response)
*
* PM allow:
* bit 0 - '0' Driver not allow power management
@@ -2290,38 +2271,38 @@
* '10' force xtal sleep
* '11' Illegal set
*
- * NOTE: if sleep_interval[SLEEP_INTRVL_TABLE_SIZE-1] > DTIM period then
+ * NOTE: if sleep_interval[SLEEP_INTRVL_TBL_SIZE-1] > DTIM period then
* ucode assume sleep over DTIM is allowed and we don't need to wake up
* for every DTIM.
*/
-#define IWL_POWER_VEC_SIZE 5
+#define IL_POWER_VEC_SIZE 5
-#define IWL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0))
-#define IWL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3))
+#define IL_POWER_DRIVER_ALLOW_SLEEP_MSK cpu_to_le16(BIT(0))
+#define IL_POWER_PCI_PM_MSK cpu_to_le16(BIT(3))
-struct iwl3945_powertable_cmd {
+struct il3945_powertable_cmd {
__le16 flags;
u8 reserved[2];
__le32 rx_data_timeout;
__le32 tx_data_timeout;
- __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+ __le32 sleep_interval[IL_POWER_VEC_SIZE];
} __packed;
-struct iwl_powertable_cmd {
+struct il_powertable_cmd {
__le16 flags;
- u8 keep_alive_seconds; /* 3945 reserved */
- u8 debug_flags; /* 3945 reserved */
+ u8 keep_alive_seconds; /* 3945 reserved */
+ u8 debug_flags; /* 3945 reserved */
__le32 rx_data_timeout;
__le32 tx_data_timeout;
- __le32 sleep_interval[IWL_POWER_VEC_SIZE];
+ __le32 sleep_interval[IL_POWER_VEC_SIZE];
__le32 keep_alive_beacons;
} __packed;
/*
- * PM_SLEEP_NOTIFICATION = 0x7A (notification only, not a command)
+ * N_PM_SLEEP = 0x7A (notification only, not a command)
* all devices identical.
*/
-struct iwl_sleep_notification {
+struct il_sleep_notification {
u8 pm_sleep_mode;
u8 pm_wakeup_src;
__le16 reserved;
@@ -2332,23 +2313,23 @@
/* Sleep states. all devices identical. */
enum {
- IWL_PM_NO_SLEEP = 0,
- IWL_PM_SLP_MAC = 1,
- IWL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
- IWL_PM_SLP_FULL_MAC_CARD_STATE = 3,
- IWL_PM_SLP_PHY = 4,
- IWL_PM_SLP_REPENT = 5,
- IWL_PM_WAKEUP_BY_TIMER = 6,
- IWL_PM_WAKEUP_BY_DRIVER = 7,
- IWL_PM_WAKEUP_BY_RFKILL = 8,
+ IL_PM_NO_SLEEP = 0,
+ IL_PM_SLP_MAC = 1,
+ IL_PM_SLP_FULL_MAC_UNASSOCIATE = 2,
+ IL_PM_SLP_FULL_MAC_CARD_STATE = 3,
+ IL_PM_SLP_PHY = 4,
+ IL_PM_SLP_REPENT = 5,
+ IL_PM_WAKEUP_BY_TIMER = 6,
+ IL_PM_WAKEUP_BY_DRIVER = 7,
+ IL_PM_WAKEUP_BY_RFKILL = 8,
/* 3 reserved */
- IWL_PM_NUM_OF_MODES = 12,
+ IL_PM_NUM_OF_MODES = 12,
};
/*
- * CARD_STATE_NOTIFICATION = 0xa1 (notification only, not a command)
+ * N_CARD_STATE = 0xa1 (notification only, not a command)
*/
-struct iwl_card_state_notif {
+struct il_card_state_notif {
__le32 flags;
} __packed;
@@ -2357,11 +2338,11 @@
#define CT_CARD_DISABLED 0x04
#define RXON_CARD_DISABLED 0x10
-struct iwl_ct_kill_config {
- __le32 reserved;
- __le32 critical_temperature_M;
- __le32 critical_temperature_R;
-} __packed;
+struct il_ct_kill_config {
+ __le32 reserved;
+ __le32 critical_temperature_M;
+ __le32 critical_temperature_R;
+} __packed;
/******************************************************************************
* (8)
@@ -2373,7 +2354,7 @@
#define SCAN_CHANNEL_TYPE_ACTIVE cpu_to_le32(1)
/**
- * struct iwl_scan_channel - entry in REPLY_SCAN_CMD channel table
+ * struct il_scan_channel - entry in C_SCAN channel table
*
* One for each channel in the scan list.
* Each channel can independently select:
@@ -2383,7 +2364,7 @@
* quiet_plcp_th, good_CRC_th)
*
* To avoid uCode errors, make sure the following are true (see comments
- * under struct iwl_scan_cmd about max_out_time and quiet_time):
+ * under struct il_scan_cmd about max_out_time and quiet_time):
* 1) If using passive_dwell (i.e. passive_dwell != 0):
* active_dwell <= passive_dwell (< max_out_time if max_out_time != 0)
* 2) quiet_time <= active_dwell
@@ -2391,7 +2372,7 @@
* passive_dwell < max_out_time
* active_dwell < max_out_time
*/
-struct iwl3945_scan_channel {
+struct il3945_scan_channel {
/*
* type is defined as:
* 0:0 1 = active, 0 = passive
@@ -2400,16 +2381,16 @@
* 5:7 reserved
*/
u8 type;
- u8 channel; /* band is selected by iwl3945_scan_cmd "flags" field */
- struct iwl3945_tx_power tpc;
+ u8 channel; /* band is selected by il3945_scan_cmd "flags" field */
+ struct il3945_tx_power tpc;
__le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
__le16 passive_dwell; /* in 1024-uSec TU (time units), typ 20-500 */
} __packed;
/* set number of direct probes u8 type */
-#define IWL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1))))
+#define IL39_SCAN_PROBE_MASK(n) ((BIT(n) | (BIT(n) - BIT(1))))
-struct iwl_scan_channel {
+struct il_scan_channel {
/*
* type is defined as:
* 0:0 1 = active, 0 = passive
@@ -2418,7 +2399,7 @@
* 21:31 reserved
*/
__le32 type;
- __le16 channel; /* band is selected by iwl_scan_cmd "flags" field */
+ __le16 channel; /* band is selected by il_scan_cmd "flags" field */
u8 tx_gain; /* gain for analog radio */
u8 dsp_atten; /* gain for DSP */
__le16 active_dwell; /* in 1024-uSec TU (time units), typ 5-50 */
@@ -2426,17 +2407,17 @@
} __packed;
/* set number of direct probes __le32 type */
-#define IWL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
+#define IL_SCAN_PROBE_MASK(n) cpu_to_le32((BIT(n) | (BIT(n) - BIT(1))))
/**
- * struct iwl_ssid_ie - directed scan network information element
+ * struct il_ssid_ie - directed scan network information element
*
- * Up to 20 of these may appear in REPLY_SCAN_CMD (Note: Only 4 are in
- * 3945 SCAN api), selected by "type" bit field in struct iwl_scan_channel;
+ * Up to 20 of these may appear in C_SCAN (Note: Only 4 are in
+ * 3945 SCAN api), selected by "type" bit field in struct il_scan_channel;
* each channel may select different ssids from among the 20 (4) entries.
* SSID IEs get transmitted in reverse order of entry.
*/
-struct iwl_ssid_ie {
+struct il_ssid_ie {
u8 id;
u8 len;
u8 ssid[32];
@@ -2445,14 +2426,14 @@
#define PROBE_OPTION_MAX_3945 4
#define PROBE_OPTION_MAX 20
#define TX_CMD_LIFE_TIME_INFINITE cpu_to_le32(0xFFFFFFFF)
-#define IWL_GOOD_CRC_TH_DISABLED 0
-#define IWL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1)
-#define IWL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff)
-#define IWL_MAX_SCAN_SIZE 1024
-#define IWL_MAX_CMD_SIZE 4096
+#define IL_GOOD_CRC_TH_DISABLED 0
+#define IL_GOOD_CRC_TH_DEFAULT cpu_to_le16(1)
+#define IL_GOOD_CRC_TH_NEVER cpu_to_le16(0xffff)
+#define IL_MAX_SCAN_SIZE 1024
+#define IL_MAX_CMD_SIZE 4096
/*
- * REPLY_SCAN_CMD = 0x80 (command)
+ * C_SCAN = 0x80 (command)
*
* The hardware scan command is very powerful; the driver can set it up to
* maintain (relatively) normal network traffic while doing a scan in the
@@ -2501,10 +2482,10 @@
* Driver must use separate scan commands for 2.4 vs. 5 GHz bands.
*
* To avoid uCode errors, see timing restrictions described under
- * struct iwl_scan_channel.
+ * struct il_scan_channel.
*/
-struct iwl3945_scan_cmd {
+struct il3945_scan_cmd {
__le16 len;
u8 reserved0;
u8 channel_count; /* # channels in channel list */
@@ -2525,10 +2506,10 @@
/* For active scans (set to all-0s for passive scans).
* Does not include payload. Must specify Tx rate; no rate scaling. */
- struct iwl3945_tx_cmd tx_cmd;
+ struct il3945_tx_cmd tx_cmd;
/* For directed active scans (set to all-0s otherwise) */
- struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX_3945];
+ struct il_ssid_ie direct_scan[PROBE_OPTION_MAX_3945];
/*
* Probe request frame, followed by channel list.
@@ -2538,17 +2519,17 @@
* Number of channels in list is specified by channel_count.
* Each channel in list is of type:
*
- * struct iwl3945_scan_channel channels[0];
+ * struct il3945_scan_channel channels[0];
*
* NOTE: Only one band of channels can be scanned per pass. You
* must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
- * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
+ * for one scan to complete (i.e. receive N_SCAN_COMPLETE)
* before requesting another scan.
*/
u8 data[0];
} __packed;
-struct iwl_scan_cmd {
+struct il_scan_cmd {
__le16 len;
u8 reserved0;
u8 channel_count; /* # channels in channel list */
@@ -2569,10 +2550,10 @@
/* For active scans (set to all-0s for passive scans).
* Does not include payload. Must specify Tx rate; no rate scaling. */
- struct iwl_tx_cmd tx_cmd;
+ struct il_tx_cmd tx_cmd;
/* For directed active scans (set to all-0s otherwise) */
- struct iwl_ssid_ie direct_scan[PROBE_OPTION_MAX];
+ struct il_ssid_ie direct_scan[PROBE_OPTION_MAX];
/*
* Probe request frame, followed by channel list.
@@ -2582,11 +2563,11 @@
* Number of channels in list is specified by channel_count.
* Each channel in list is of type:
*
- * struct iwl_scan_channel channels[0];
+ * struct il_scan_channel channels[0];
*
* NOTE: Only one band of channels can be scanned per pass. You
* must not mix 2.4GHz channels and 5.2GHz channels, and you must wait
- * for one scan to complete (i.e. receive SCAN_COMPLETE_NOTIFICATION)
+ * for one scan to complete (i.e. receive N_SCAN_COMPLETE)
* before requesting another scan.
*/
u8 data[0];
@@ -2598,16 +2579,16 @@
#define ABORT_STATUS 0x2
/*
- * REPLY_SCAN_CMD = 0x80 (response)
+ * C_SCAN = 0x80 (response)
*/
-struct iwl_scanreq_notification {
+struct il_scanreq_notification {
__le32 status; /* 1: okay, 2: cannot fulfill request */
} __packed;
/*
- * SCAN_START_NOTIFICATION = 0x82 (notification only, not a command)
+ * N_SCAN_START = 0x82 (notification only, not a command)
*/
-struct iwl_scanstart_notification {
+struct il_scanstart_notification {
__le32 tsf_low;
__le32 tsf_high;
__le32 beacon_timer;
@@ -2620,30 +2601,30 @@
#define SCAN_OWNER_STATUS 0x1
#define MEASURE_OWNER_STATUS 0x2
-#define IWL_PROBE_STATUS_OK 0
-#define IWL_PROBE_STATUS_TX_FAILED BIT(0)
+#define IL_PROBE_STATUS_OK 0
+#define IL_PROBE_STATUS_TX_FAILED BIT(0)
/* error statuses combined with TX_FAILED */
-#define IWL_PROBE_STATUS_FAIL_TTL BIT(1)
-#define IWL_PROBE_STATUS_FAIL_BT BIT(2)
+#define IL_PROBE_STATUS_FAIL_TTL BIT(1)
+#define IL_PROBE_STATUS_FAIL_BT BIT(2)
-#define NUMBER_OF_STATISTICS 1 /* first __le32 is good CRC */
+#define NUMBER_OF_STATS 1 /* first __le32 is good CRC */
/*
- * SCAN_RESULTS_NOTIFICATION = 0x83 (notification only, not a command)
+ * N_SCAN_RESULTS = 0x83 (notification only, not a command)
*/
-struct iwl_scanresults_notification {
+struct il_scanresults_notification {
u8 channel;
u8 band;
u8 probe_status;
- u8 num_probe_not_sent; /* not enough time to send */
+ u8 num_probe_not_sent; /* not enough time to send */
__le32 tsf_low;
__le32 tsf_high;
- __le32 statistics[NUMBER_OF_STATISTICS];
+ __le32 stats[NUMBER_OF_STATS];
} __packed;
/*
- * SCAN_COMPLETE_NOTIFICATION = 0x84 (notification only, not a command)
+ * N_SCAN_COMPLETE = 0x84 (notification only, not a command)
*/
-struct iwl_scancomplete_notification {
+struct il_scancomplete_notification {
u8 scanned_channels;
u8 status;
u8 last_channel;
@@ -2651,50 +2632,49 @@
__le32 tsf_high;
} __packed;
-
/******************************************************************************
* (9)
* IBSS/AP Commands and Notifications:
*
*****************************************************************************/
-enum iwl_ibss_manager {
- IWL_NOT_IBSS_MANAGER = 0,
- IWL_IBSS_MANAGER = 1,
+enum il_ibss_manager {
+ IL_NOT_IBSS_MANAGER = 0,
+ IL_IBSS_MANAGER = 1,
};
/*
- * BEACON_NOTIFICATION = 0x90 (notification only, not a command)
+ * N_BEACON = 0x90 (notification only, not a command)
*/
-struct iwl3945_beacon_notif {
- struct iwl3945_tx_resp beacon_notify_hdr;
+struct il3945_beacon_notif {
+ struct il3945_tx_resp beacon_notify_hdr;
__le32 low_tsf;
__le32 high_tsf;
__le32 ibss_mgr_status;
} __packed;
-struct iwl4965_beacon_notif {
- struct iwl4965_tx_resp beacon_notify_hdr;
+struct il4965_beacon_notif {
+ struct il4965_tx_resp beacon_notify_hdr;
__le32 low_tsf;
__le32 high_tsf;
__le32 ibss_mgr_status;
} __packed;
/*
- * REPLY_TX_BEACON = 0x91 (command, has simple generic response)
+ * C_TX_BEACON= 0x91 (command, has simple generic response)
*/
-struct iwl3945_tx_beacon_cmd {
- struct iwl3945_tx_cmd tx;
+struct il3945_tx_beacon_cmd {
+ struct il3945_tx_cmd tx;
__le16 tim_idx;
u8 tim_size;
u8 reserved1;
struct ieee80211_hdr frame[0]; /* beacon frame */
} __packed;
-struct iwl_tx_beacon_cmd {
- struct iwl_tx_cmd tx;
+struct il_tx_beacon_cmd {
+ struct il_tx_cmd tx;
__le16 tim_idx;
u8 tim_size;
u8 reserved1;
@@ -2707,7 +2687,7 @@
*
*****************************************************************************/
-#define IWL_TEMP_CONVERT 260
+#define IL_TEMP_CONVERT 260
#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
@@ -2727,9 +2707,9 @@
} failed;
} __packed;
-/* statistics command response */
+/* stats command response */
-struct iwl39_statistics_rx_phy {
+struct iwl39_stats_rx_phy {
__le32 ina_cnt;
__le32 fina_cnt;
__le32 plcp_err;
@@ -2747,7 +2727,7 @@
__le32 sent_cts_cnt;
} __packed;
-struct iwl39_statistics_rx_non_phy {
+struct iwl39_stats_rx_non_phy {
__le32 bogus_cts; /* CTS received when not expecting CTS */
__le32 bogus_ack; /* ACK received when not expecting ACK */
__le32 non_bssid_frames; /* number of frames with BSSID that
@@ -2758,13 +2738,13 @@
* our serving channel */
} __packed;
-struct iwl39_statistics_rx {
- struct iwl39_statistics_rx_phy ofdm;
- struct iwl39_statistics_rx_phy cck;
- struct iwl39_statistics_rx_non_phy general;
+struct iwl39_stats_rx {
+ struct iwl39_stats_rx_phy ofdm;
+ struct iwl39_stats_rx_phy cck;
+ struct iwl39_stats_rx_non_phy general;
} __packed;
-struct iwl39_statistics_tx {
+struct iwl39_stats_tx {
__le32 preamble_cnt;
__le32 rx_detected_cnt;
__le32 bt_prio_defer_cnt;
@@ -2776,31 +2756,31 @@
__le32 actual_ack_cnt;
} __packed;
-struct statistics_dbg {
+struct stats_dbg {
__le32 burst_check;
__le32 burst_count;
__le32 wait_for_silence_timeout_cnt;
__le32 reserved[3];
} __packed;
-struct iwl39_statistics_div {
+struct iwl39_stats_div {
__le32 tx_on_a;
__le32 tx_on_b;
__le32 exec_time;
__le32 probe_time;
} __packed;
-struct iwl39_statistics_general {
+struct iwl39_stats_general {
__le32 temperature;
- struct statistics_dbg dbg;
+ struct stats_dbg dbg;
__le32 sleep_time;
__le32 slots_out;
__le32 slots_idle;
__le32 ttl_timestamp;
- struct iwl39_statistics_div div;
+ struct iwl39_stats_div div;
} __packed;
-struct statistics_rx_phy {
+struct stats_rx_phy {
__le32 ina_cnt;
__le32 fina_cnt;
__le32 plcp_err;
@@ -2823,7 +2803,7 @@
__le32 reserved3;
} __packed;
-struct statistics_rx_ht_phy {
+struct stats_rx_ht_phy {
__le32 plcp_err;
__le32 overrun_err;
__le32 early_overrun_err;
@@ -2838,7 +2818,7 @@
#define INTERFERENCE_DATA_AVAILABLE cpu_to_le32(1)
-struct statistics_rx_non_phy {
+struct stats_rx_non_phy {
__le32 bogus_cts; /* CTS received when not expecting CTS */
__le32 bogus_ack; /* ACK received when not expecting ACK */
__le32 non_bssid_frames; /* number of frames with BSSID that
@@ -2852,15 +2832,15 @@
__le32 num_missed_bcon; /* number of missed beacons */
__le32 adc_rx_saturation_time; /* count in 0.8us units the time the
* ADC was in saturation */
- __le32 ina_detection_search_time;/* total time (in 0.8us) searched
- * for INA */
+ __le32 ina_detection_search_time; /* total time (in 0.8us) searched
+ * for INA */
__le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */
__le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */
__le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */
__le32 interference_data_flag; /* flag for interference data
* availability. 1 when data is
* available. */
- __le32 channel_load; /* counts RX Enable time in uSec */
+ __le32 channel_load; /* counts RX Enable time in uSec */
__le32 dsp_false_alarms; /* DSP false alarm (both OFDM
* and CCK) counter */
__le32 beacon_rssi_a;
@@ -2871,28 +2851,28 @@
__le32 beacon_energy_c;
} __packed;
-struct statistics_rx {
- struct statistics_rx_phy ofdm;
- struct statistics_rx_phy cck;
- struct statistics_rx_non_phy general;
- struct statistics_rx_ht_phy ofdm_ht;
+struct stats_rx {
+ struct stats_rx_phy ofdm;
+ struct stats_rx_phy cck;
+ struct stats_rx_non_phy general;
+ struct stats_rx_ht_phy ofdm_ht;
} __packed;
/**
- * struct statistics_tx_power - current tx power
+ * struct stats_tx_power - current tx power
*
* @ant_a: current tx power on chain a in 1/2 dB step
* @ant_b: current tx power on chain b in 1/2 dB step
* @ant_c: current tx power on chain c in 1/2 dB step
*/
-struct statistics_tx_power {
+struct stats_tx_power {
u8 ant_a;
u8 ant_b;
u8 ant_c;
u8 reserved;
} __packed;
-struct statistics_tx_non_phy_agg {
+struct stats_tx_non_phy_agg {
__le32 ba_timeout;
__le32 ba_reschedule_frames;
__le32 scd_query_agg_frame_cnt;
@@ -2905,7 +2885,7 @@
__le32 rx_ba_rsp_cnt;
} __packed;
-struct statistics_tx {
+struct stats_tx {
__le32 preamble_cnt;
__le32 rx_detected_cnt;
__le32 bt_prio_defer_cnt;
@@ -2920,13 +2900,12 @@
__le32 burst_abort_missing_next_frame_cnt;
__le32 cts_timeout_collision;
__le32 ack_or_ba_timeout_collision;
- struct statistics_tx_non_phy_agg agg;
+ struct stats_tx_non_phy_agg agg;
__le32 reserved1;
} __packed;
-
-struct statistics_div {
+struct stats_div {
__le32 tx_on_a;
__le32 tx_on_b;
__le32 exec_time;
@@ -2935,14 +2914,14 @@
__le32 reserved2;
} __packed;
-struct statistics_general_common {
- __le32 temperature; /* radio temperature */
- struct statistics_dbg dbg;
+struct stats_general_common {
+ __le32 temperature; /* radio temperature */
+ struct stats_dbg dbg;
__le32 sleep_time;
__le32 slots_out;
__le32 slots_idle;
__le32 ttl_timestamp;
- struct statistics_div div;
+ struct stats_div div;
__le32 rx_enable_counter;
/*
* num_of_sos_states:
@@ -2952,73 +2931,73 @@
__le32 num_of_sos_states;
} __packed;
-struct statistics_general {
- struct statistics_general_common common;
+struct stats_general {
+ struct stats_general_common common;
__le32 reserved2;
__le32 reserved3;
} __packed;
-#define UCODE_STATISTICS_CLEAR_MSK (0x1 << 0)
-#define UCODE_STATISTICS_FREQUENCY_MSK (0x1 << 1)
-#define UCODE_STATISTICS_NARROW_BAND_MSK (0x1 << 2)
+#define UCODE_STATS_CLEAR_MSK (0x1 << 0)
+#define UCODE_STATS_FREQUENCY_MSK (0x1 << 1)
+#define UCODE_STATS_NARROW_BAND_MSK (0x1 << 2)
/*
- * REPLY_STATISTICS_CMD = 0x9c,
+ * C_STATS = 0x9c,
* all devices identical.
*
- * This command triggers an immediate response containing uCode statistics.
- * The response is in the same format as STATISTICS_NOTIFICATION 0x9d, below.
+ * This command triggers an immediate response containing uCode stats.
+ * The response is in the same format as N_STATS 0x9d, below.
*
* If the CLEAR_STATS configuration flag is set, uCode will clear its
- * internal copy of the statistics (counters) after issuing the response.
- * This flag does not affect STATISTICS_NOTIFICATIONs after beacons (see below).
+ * internal copy of the stats (counters) after issuing the response.
+ * This flag does not affect N_STATSs after beacons (see below).
*
* If the DISABLE_NOTIF configuration flag is set, uCode will not issue
- * STATISTICS_NOTIFICATIONs after received beacons (see below). This flag
- * does not affect the response to the REPLY_STATISTICS_CMD 0x9c itself.
+ * N_STATSs after received beacons (see below). This flag
+ * does not affect the response to the C_STATS 0x9c itself.
*/
-#define IWL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
-#define IWL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2)/* see above */
-struct iwl_statistics_cmd {
- __le32 configuration_flags; /* IWL_STATS_CONF_* */
+#define IL_STATS_CONF_CLEAR_STATS cpu_to_le32(0x1) /* see above */
+#define IL_STATS_CONF_DISABLE_NOTIF cpu_to_le32(0x2) /* see above */
+struct il_stats_cmd {
+ __le32 configuration_flags; /* IL_STATS_CONF_* */
} __packed;
/*
- * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command)
+ * N_STATS = 0x9d (notification only, not a command)
*
* By default, uCode issues this notification after receiving a beacon
* while associated. To disable this behavior, set DISABLE_NOTIF flag in the
- * REPLY_STATISTICS_CMD 0x9c, above.
+ * C_STATS 0x9c, above.
*
* Statistics counters continue to increment beacon after beacon, but are
- * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD
+ * cleared when changing channels or when driver issues C_STATS
* 0x9c with CLEAR_STATS bit set (see above).
*
- * uCode also issues this notification during scans. uCode clears statistics
- * appropriately so that each notification contains statistics for only the
+ * uCode also issues this notification during scans. uCode clears stats
+ * appropriately so that each notification contains stats for only the
* one channel that has just been scanned.
*/
-#define STATISTICS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
-#define STATISTICS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8)
+#define STATS_REPLY_FLG_BAND_24G_MSK cpu_to_le32(0x2)
+#define STATS_REPLY_FLG_HT40_MODE_MSK cpu_to_le32(0x8)
-struct iwl3945_notif_statistics {
+struct il3945_notif_stats {
__le32 flag;
- struct iwl39_statistics_rx rx;
- struct iwl39_statistics_tx tx;
- struct iwl39_statistics_general general;
+ struct iwl39_stats_rx rx;
+ struct iwl39_stats_tx tx;
+ struct iwl39_stats_general general;
} __packed;
-struct iwl_notif_statistics {
+struct il_notif_stats {
__le32 flag;
- struct statistics_rx rx;
- struct statistics_tx tx;
- struct statistics_general general;
+ struct stats_rx rx;
+ struct stats_tx tx;
+ struct stats_general general;
} __packed;
/*
- * MISSED_BEACONS_NOTIFICATION = 0xa2 (notification only, not a command)
+ * N_MISSED_BEACONS = 0xa2 (notification only, not a command)
*
- * uCode send MISSED_BEACONS_NOTIFICATION to driver when detect beacon missed
+ * uCode send N_MISSED_BEACONS to driver when detect beacon missed
* in regardless of how many missed beacons, which mean when driver receive the
* notification, inside the command, it can find all the beacons information
* which include number of total missed beacons, number of consecutive missed
@@ -3035,18 +3014,17 @@
*
*/
-#define IWL_MISSED_BEACON_THRESHOLD_MIN (1)
-#define IWL_MISSED_BEACON_THRESHOLD_DEF (5)
-#define IWL_MISSED_BEACON_THRESHOLD_MAX IWL_MISSED_BEACON_THRESHOLD_DEF
+#define IL_MISSED_BEACON_THRESHOLD_MIN (1)
+#define IL_MISSED_BEACON_THRESHOLD_DEF (5)
+#define IL_MISSED_BEACON_THRESHOLD_MAX IL_MISSED_BEACON_THRESHOLD_DEF
-struct iwl_missed_beacon_notif {
+struct il_missed_beacon_notif {
__le32 consecutive_missed_beacons;
__le32 total_missed_becons;
__le32 num_expected_beacons;
__le32 num_recvd_beacons;
} __packed;
-
/******************************************************************************
* (11)
* Rx Calibration Commands:
@@ -3062,7 +3040,7 @@
*****************************************************************************/
/**
- * SENSITIVITY_CMD = 0xa8 (command, has simple generic response)
+ * C_SENSITIVITY = 0xa8 (command, has simple generic response)
*
* This command sets up the Rx signal detector for a sensitivity level that
* is high enough to lock onto all signals within the associated network,
@@ -3076,12 +3054,12 @@
* time listening, not transmitting). Driver must adjust sensitivity so that
* the ratio of actual false alarms to actual Rx time falls within this range.
*
- * While associated, uCode delivers STATISTICS_NOTIFICATIONs after each
+ * While associated, uCode delivers N_STATSs after each
* received beacon. These provide information to the driver to analyze the
- * sensitivity. Don't analyze statistics that come in from scanning, or any
- * other non-associated-network source. Pertinent statistics include:
+ * sensitivity. Don't analyze stats that come in from scanning, or any
+ * other non-associated-network source. Pertinent stats include:
*
- * From "general" statistics (struct statistics_rx_non_phy):
+ * From "general" stats (struct stats_rx_non_phy):
*
* (beacon_energy_[abc] & 0x0FF00) >> 8 (unsigned, higher value is lower level)
* Measure of energy of desired signal. Used for establishing a level
@@ -3094,7 +3072,7 @@
* uSecs of actual Rx time during beacon period (varies according to
* how much time was spent transmitting).
*
- * From "cck" and "ofdm" statistics (struct statistics_rx_phy), separately:
+ * From "cck" and "ofdm" stats (struct stats_rx_phy), separately:
*
* false_alarm_cnt
* Signal locks abandoned early (before phy-level header).
@@ -3111,15 +3089,15 @@
*
* Total number of false alarms = false_alarms + plcp_errs
*
- * For OFDM, adjust the following table entries in struct iwl_sensitivity_cmd
+ * For OFDM, adjust the following table entries in struct il_sensitivity_cmd
* (notice that the start points for OFDM are at or close to settings for
* maximum sensitivity):
*
* START / MIN / MAX
- * HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX 90 / 85 / 120
- * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX 170 / 170 / 210
- * HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX 105 / 105 / 140
- * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX 220 / 220 / 270
+ * HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX 90 / 85 / 120
+ * HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX 170 / 170 / 210
+ * HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX 105 / 105 / 140
+ * HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX 220 / 220 / 270
*
* If actual rate of OFDM false alarms (+ plcp_errors) is too high
* (greater than 50 for each 204.8 msecs listening), reduce sensitivity
@@ -3152,30 +3130,30 @@
* Reset this to 0 at the first beacon period that falls within the
* "good" range (5 to 50 false alarms per 204.8 milliseconds rx).
*
- * Then, adjust the following CCK table entries in struct iwl_sensitivity_cmd
+ * Then, adjust the following CCK table entries in struct il_sensitivity_cmd
* (notice that the start points for CCK are at maximum sensitivity):
*
* START / MIN / MAX
- * HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX 125 / 125 / 200
- * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX 200 / 200 / 400
- * HD_MIN_ENERGY_CCK_DET_INDEX 100 / 0 / 100
+ * HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX 125 / 125 / 200
+ * HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX 200 / 200 / 400
+ * HD_MIN_ENERGY_CCK_DET_IDX 100 / 0 / 100
*
* If actual rate of CCK false alarms (+ plcp_errors) is too high
* (greater than 50 for each 204.8 msecs listening), method for reducing
* sensitivity is:
*
- * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
+ * 1) *Add* 3 to value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX,
* up to max 400.
*
- * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is < 160,
+ * 2) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is < 160,
* sensitivity has been reduced a significant amount; bring it up to
* a moderate 161. Otherwise, *add* 3, up to max 200.
*
- * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX is > 160,
+ * 3) a) If current value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX is > 160,
* sensitivity has been reduced only a moderate or small amount;
- * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_INDEX,
+ * *subtract* 2 from value in HD_MIN_ENERGY_CCK_DET_IDX,
* down to min 0. Otherwise (if gain has been significantly reduced),
- * don't change the HD_MIN_ENERGY_CCK_DET_INDEX value.
+ * don't change the HD_MIN_ENERGY_CCK_DET_IDX value.
*
* b) Save a snapshot of the "silence reference".
*
@@ -3191,13 +3169,13 @@
*
* Method for increasing sensitivity:
*
- * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX,
+ * 1) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX,
* down to min 125.
*
- * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX,
+ * 2) *Subtract* 3 from value in HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX,
* down to min 200.
*
- * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_INDEX, up to max 100.
+ * 3) *Add* 2 to value in HD_MIN_ENERGY_CCK_DET_IDX, up to max 100.
*
* If actual rate of CCK false alarms (+ plcp_errors) is within good range
* (between 5 and 50 for each 204.8 msecs listening):
@@ -3206,57 +3184,56 @@
*
* 2) If previous beacon had too many CCK false alarms (+ plcp_errors),
* give some extra margin to energy threshold by *subtracting* 8
- * from value in HD_MIN_ENERGY_CCK_DET_INDEX.
+ * from value in HD_MIN_ENERGY_CCK_DET_IDX.
*
* For all cases (too few, too many, good range), make sure that the CCK
* detection threshold (energy) is below the energy level for robust
* detection over the past 10 beacon periods, the "Max cck energy".
* Lower values mean higher energy; this means making sure that the value
- * in HD_MIN_ENERGY_CCK_DET_INDEX is at or *above* "Max cck energy".
+ * in HD_MIN_ENERGY_CCK_DET_IDX is at or *above* "Max cck energy".
*
*/
/*
- * Table entries in SENSITIVITY_CMD (struct iwl_sensitivity_cmd)
+ * Table entries in C_SENSITIVITY (struct il_sensitivity_cmd)
*/
-#define HD_TABLE_SIZE (11) /* number of entries */
-#define HD_MIN_ENERGY_CCK_DET_INDEX (0) /* table indexes */
-#define HD_MIN_ENERGY_OFDM_DET_INDEX (1)
-#define HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX (2)
-#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX (3)
-#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX (4)
-#define HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX (5)
-#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX (6)
-#define HD_BARKER_CORR_TH_ADD_MIN_INDEX (7)
-#define HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX (8)
-#define HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX (9)
-#define HD_OFDM_ENERGY_TH_IN_INDEX (10)
+#define HD_TBL_SIZE (11) /* number of entries */
+#define HD_MIN_ENERGY_CCK_DET_IDX (0) /* table idxes */
+#define HD_MIN_ENERGY_OFDM_DET_IDX (1)
+#define HD_AUTO_CORR32_X1_TH_ADD_MIN_IDX (2)
+#define HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_IDX (3)
+#define HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_IDX (4)
+#define HD_AUTO_CORR32_X4_TH_ADD_MIN_IDX (5)
+#define HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_IDX (6)
+#define HD_BARKER_CORR_TH_ADD_MIN_IDX (7)
+#define HD_BARKER_CORR_TH_ADD_MIN_MRC_IDX (8)
+#define HD_AUTO_CORR40_X4_TH_ADD_MIN_IDX (9)
+#define HD_OFDM_ENERGY_TH_IN_IDX (10)
-/* Control field in struct iwl_sensitivity_cmd */
-#define SENSITIVITY_CMD_CONTROL_DEFAULT_TABLE cpu_to_le16(0)
-#define SENSITIVITY_CMD_CONTROL_WORK_TABLE cpu_to_le16(1)
+/* Control field in struct il_sensitivity_cmd */
+#define C_SENSITIVITY_CONTROL_DEFAULT_TBL cpu_to_le16(0)
+#define C_SENSITIVITY_CONTROL_WORK_TBL cpu_to_le16(1)
/**
- * struct iwl_sensitivity_cmd
+ * struct il_sensitivity_cmd
* @control: (1) updates working table, (0) updates default table
- * @table: energy threshold values, use HD_* as index into table
+ * @table: energy threshold values, use HD_* as idx into table
*
* Always use "1" in "control" to update uCode's working table and DSP.
*/
-struct iwl_sensitivity_cmd {
- __le16 control; /* always use "1" */
- __le16 table[HD_TABLE_SIZE]; /* use HD_* as index */
+struct il_sensitivity_cmd {
+ __le16 control; /* always use "1" */
+ __le16 table[HD_TBL_SIZE]; /* use HD_* as idx */
} __packed;
-
/**
- * REPLY_PHY_CALIBRATION_CMD = 0xb0 (command, has simple generic response)
+ * C_PHY_CALIBRATION = 0xb0 (command, has simple generic response)
*
* This command sets the relative gains of 4965 device's 3 radio receiver chains.
*
* After the first association, driver should accumulate signal and noise
- * statistics from the STATISTICS_NOTIFICATIONs that follow the first 20
- * beacons from the associated network (don't collect statistics that come
+ * stats from the N_STATSs that follow the first 20
+ * beacons from the associated network (don't collect stats that come
* in from scanning, or any other non-network source).
*
* DISCONNECTED ANTENNA:
@@ -3264,7 +3241,7 @@
* Driver should determine which antennas are actually connected, by comparing
* average beacon signal levels for the 3 Rx chains. Accumulate (add) the
* following values over 20 beacons, one accumulator for each of the chains
- * a/b/c, from struct statistics_rx_non_phy:
+ * a/b/c, from struct stats_rx_non_phy:
*
* beacon_rssi_[abc] & 0x0FF (unsigned, units in dB)
*
@@ -3283,7 +3260,7 @@
* to antennas, see above) for gain, by comparing the average signal levels
* detected during the silence after each beacon (background noise).
* Accumulate (add) the following values over 20 beacons, one accumulator for
- * each of the chains a/b/c, from struct statistics_rx_non_phy:
+ * each of the chains a/b/c, from struct stats_rx_non_phy:
*
* beacon_silence_rssi_[abc] & 0x0FF (unsigned, units in dB)
*
@@ -3294,7 +3271,7 @@
* (accum_noise[i] - accum_noise[reference]) / 30
*
* The "30" adjusts the dB in the 20 accumulated samples to units of 1.5 dB.
- * For use in diff_gain_[abc] fields of struct iwl_calibration_cmd, the
+ * For use in diff_gain_[abc] fields of struct il_calibration_cmd, the
* driver should limit the difference results to a range of 0-3 (0-4.5 dB),
* and set bit 2 to indicate "reduce gain". The value for the reference
* (weakest) chain should be "0".
@@ -3306,24 +3283,24 @@
/* Phy calibration command for series */
/* The default calibrate table size if not specified by firmware */
-#define IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18
+#define IL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE 18
enum {
- IWL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
- IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19,
+ IL_PHY_CALIBRATE_DIFF_GAIN_CMD = 7,
+ IL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE = 19,
};
-#define IWL_MAX_PHY_CALIBRATE_TBL_SIZE (253)
+#define IL_MAX_PHY_CALIBRATE_TBL_SIZE (253)
-struct iwl_calib_hdr {
+struct il_calib_hdr {
u8 op_code;
u8 first_group;
u8 groups_num;
u8 data_valid;
} __packed;
-/* IWL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
-struct iwl_calib_diff_gain_cmd {
- struct iwl_calib_hdr hdr;
+/* IL_PHY_CALIBRATE_DIFF_GAIN_CMD (7) */
+struct il_calib_diff_gain_cmd {
+ struct il_calib_hdr hdr;
s8 diff_gain_a; /* see above */
s8 diff_gain_b;
s8 diff_gain_c;
@@ -3338,12 +3315,12 @@
/*
* LEDs Command & Response
- * REPLY_LEDS_CMD = 0x48 (command, has simple generic response)
+ * C_LEDS = 0x48 (command, has simple generic response)
*
* For each of 3 possible LEDs (Activity/Link/Tech, selected by "id" field),
* this command turns it on or off, or sets up a periodic blinking cycle.
*/
-struct iwl_led_cmd {
+struct il_led_cmd {
__le32 interval; /* "interval" in uSec */
u8 id; /* 1: Activity, 2: Link, 3: Tech */
u8 off; /* # intervals off while blinking;
@@ -3353,14 +3330,15 @@
u8 reserved;
} __packed;
-
/******************************************************************************
* (13)
* Union of all expected notifications/responses:
*
*****************************************************************************/
-struct iwl_rx_packet {
+#define IL_RX_FRAME_SIZE_MSK 0x00003fff
+
+struct il_rx_pkt {
/*
* The first 4 bytes of the RX frame header contain both the RX frame
* size and some flags.
@@ -3372,27 +3350,27 @@
* 13-00: RX frame size
*/
__le32 len_n_flags;
- struct iwl_cmd_header hdr;
+ struct il_cmd_header hdr;
union {
- struct iwl3945_rx_frame rx_frame;
- struct iwl3945_tx_resp tx_resp;
- struct iwl3945_beacon_notif beacon_status;
+ struct il3945_rx_frame rx_frame;
+ struct il3945_tx_resp tx_resp;
+ struct il3945_beacon_notif beacon_status;
- struct iwl_alive_resp alive_frame;
- struct iwl_spectrum_notification spectrum_notif;
- struct iwl_csa_notification csa_notif;
- struct iwl_error_resp err_resp;
- struct iwl_card_state_notif card_state_notif;
- struct iwl_add_sta_resp add_sta;
- struct iwl_rem_sta_resp rem_sta;
- struct iwl_sleep_notification sleep_notif;
- struct iwl_spectrum_resp spectrum;
- struct iwl_notif_statistics stats;
- struct iwl_compressed_ba_resp compressed_ba;
- struct iwl_missed_beacon_notif missed_beacon;
+ struct il_alive_resp alive_frame;
+ struct il_spectrum_notification spectrum_notif;
+ struct il_csa_notification csa_notif;
+ struct il_error_resp err_resp;
+ struct il_card_state_notif card_state_notif;
+ struct il_add_sta_resp add_sta;
+ struct il_rem_sta_resp rem_sta;
+ struct il_sleep_notification sleep_notif;
+ struct il_spectrum_resp spectrum;
+ struct il_notif_stats stats;
+ struct il_compressed_ba_resp compressed_ba;
+ struct il_missed_beacon_notif missed_beacon;
__le32 status;
u8 raw[0];
} u;
} __packed;
-#endif /* __iwl_legacy_commands_h__ */
+#endif /* __il_commands_h__ */
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
new file mode 100644
index 0000000..7e2924f
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -0,0 +1,5707 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *****************************************************************************/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/etherdevice.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/lockdep.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <net/mac80211.h>
+
+#include "common.h"
+
+const char *
+il_get_cmd_string(u8 cmd)
+{
+ switch (cmd) {
+ IL_CMD(N_ALIVE);
+ IL_CMD(N_ERROR);
+ IL_CMD(C_RXON);
+ IL_CMD(C_RXON_ASSOC);
+ IL_CMD(C_QOS_PARAM);
+ IL_CMD(C_RXON_TIMING);
+ IL_CMD(C_ADD_STA);
+ IL_CMD(C_REM_STA);
+ IL_CMD(C_WEPKEY);
+ IL_CMD(N_3945_RX);
+ IL_CMD(C_TX);
+ IL_CMD(C_RATE_SCALE);
+ IL_CMD(C_LEDS);
+ IL_CMD(C_TX_LINK_QUALITY_CMD);
+ IL_CMD(C_CHANNEL_SWITCH);
+ IL_CMD(N_CHANNEL_SWITCH);
+ IL_CMD(C_SPECTRUM_MEASUREMENT);
+ IL_CMD(N_SPECTRUM_MEASUREMENT);
+ IL_CMD(C_POWER_TBL);
+ IL_CMD(N_PM_SLEEP);
+ IL_CMD(N_PM_DEBUG_STATS);
+ IL_CMD(C_SCAN);
+ IL_CMD(C_SCAN_ABORT);
+ IL_CMD(N_SCAN_START);
+ IL_CMD(N_SCAN_RESULTS);
+ IL_CMD(N_SCAN_COMPLETE);
+ IL_CMD(N_BEACON);
+ IL_CMD(C_TX_BEACON);
+ IL_CMD(C_TX_PWR_TBL);
+ IL_CMD(C_BT_CONFIG);
+ IL_CMD(C_STATS);
+ IL_CMD(N_STATS);
+ IL_CMD(N_CARD_STATE);
+ IL_CMD(N_MISSED_BEACONS);
+ IL_CMD(C_CT_KILL_CONFIG);
+ IL_CMD(C_SENSITIVITY);
+ IL_CMD(C_PHY_CALIBRATION);
+ IL_CMD(N_RX_PHY);
+ IL_CMD(N_RX_MPDU);
+ IL_CMD(N_RX);
+ IL_CMD(N_COMPRESSED_BA);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+EXPORT_SYMBOL(il_get_cmd_string);
+
+#define HOST_COMPLETE_TIMEOUT (HZ / 2)
+
+static void
+il_generic_cmd_callback(struct il_priv *il, struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt)
+{
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from %s (0x%08X)\n",
+ il_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+ return;
+ }
+#ifdef CONFIG_IWLEGACY_DEBUG
+ switch (cmd->hdr.cmd) {
+ case C_TX_LINK_QUALITY_CMD:
+ case C_SENSITIVITY:
+ D_HC_DUMP("back from %s (0x%08X)\n",
+ il_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
+ break;
+ default:
+ D_HC("back from %s (0x%08X)\n", il_get_cmd_string(cmd->hdr.cmd),
+ pkt->hdr.flags);
+ }
+#endif
+}
+
+static int
+il_send_cmd_async(struct il_priv *il, struct il_host_cmd *cmd)
+{
+ int ret;
+
+ BUG_ON(!(cmd->flags & CMD_ASYNC));
+
+ /* An asynchronous command can not expect an SKB to be set. */
+ BUG_ON(cmd->flags & CMD_WANT_SKB);
+
+ /* Assign a generic callback if one is not provided */
+ if (!cmd->callback)
+ cmd->callback = il_generic_cmd_callback;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return -EBUSY;
+
+ ret = il_enqueue_hcmd(il, cmd);
+ if (ret < 0) {
+ IL_ERR("Error sending %s: enqueue_hcmd failed: %d\n",
+ il_get_cmd_string(cmd->id), ret);
+ return ret;
+ }
+ return 0;
+}
+
+int
+il_send_cmd_sync(struct il_priv *il, struct il_host_cmd *cmd)
+{
+ int cmd_idx;
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ BUG_ON(cmd->flags & CMD_ASYNC);
+
+ /* A synchronous command can not have a callback set. */
+ BUG_ON(cmd->callback);
+
+ D_INFO("Attempting to send sync command %s\n",
+ il_get_cmd_string(cmd->id));
+
+ set_bit(S_HCMD_ACTIVE, &il->status);
+ D_INFO("Setting HCMD_ACTIVE for command %s\n",
+ il_get_cmd_string(cmd->id));
+
+ cmd_idx = il_enqueue_hcmd(il, cmd);
+ if (cmd_idx < 0) {
+ ret = cmd_idx;
+ IL_ERR("Error sending %s: enqueue_hcmd failed: %d\n",
+ il_get_cmd_string(cmd->id), ret);
+ goto out;
+ }
+
+ ret = wait_event_timeout(il->wait_command_queue,
+ !test_bit(S_HCMD_ACTIVE, &il->status),
+ HOST_COMPLETE_TIMEOUT);
+ if (!ret) {
+ if (test_bit(S_HCMD_ACTIVE, &il->status)) {
+ IL_ERR("Error sending %s: time out after %dms.\n",
+ il_get_cmd_string(cmd->id),
+ jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+
+ clear_bit(S_HCMD_ACTIVE, &il->status);
+ D_INFO("Clearing HCMD_ACTIVE for command %s\n",
+ il_get_cmd_string(cmd->id));
+ ret = -ETIMEDOUT;
+ goto cancel;
+ }
+ }
+
+ if (test_bit(S_RF_KILL_HW, &il->status)) {
+ IL_ERR("Command %s aborted: RF KILL Switch\n",
+ il_get_cmd_string(cmd->id));
+ ret = -ECANCELED;
+ goto fail;
+ }
+ if (test_bit(S_FW_ERROR, &il->status)) {
+ IL_ERR("Command %s failed: FW Error\n",
+ il_get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto fail;
+ }
+ if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
+ IL_ERR("Error: Response NULL in '%s'\n",
+ il_get_cmd_string(cmd->id));
+ ret = -EIO;
+ goto cancel;
+ }
+
+ ret = 0;
+ goto out;
+
+cancel:
+ if (cmd->flags & CMD_WANT_SKB) {
+ /*
+ * Cancel the CMD_WANT_SKB flag for the cmd in the
+ * TX cmd queue. Otherwise in case the cmd comes
+ * in later, it will possibly set an invalid
+ * address (cmd->meta.source).
+ */
+ il->txq[il->cmd_queue].meta[cmd_idx].flags &= ~CMD_WANT_SKB;
+ }
+fail:
+ if (cmd->reply_page) {
+ il_free_pages(il, cmd->reply_page);
+ cmd->reply_page = 0;
+ }
+out:
+ return ret;
+}
+EXPORT_SYMBOL(il_send_cmd_sync);
+
+int
+il_send_cmd(struct il_priv *il, struct il_host_cmd *cmd)
+{
+ if (cmd->flags & CMD_ASYNC)
+ return il_send_cmd_async(il, cmd);
+
+ return il_send_cmd_sync(il, cmd);
+}
+EXPORT_SYMBOL(il_send_cmd);
+
+int
+il_send_cmd_pdu(struct il_priv *il, u8 id, u16 len, const void *data)
+{
+ struct il_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ return il_send_cmd_sync(il, &cmd);
+}
+EXPORT_SYMBOL(il_send_cmd_pdu);
+
+int
+il_send_cmd_pdu_async(struct il_priv *il, u8 id, u16 len, const void *data,
+ void (*callback) (struct il_priv *il,
+ struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt))
+{
+ struct il_host_cmd cmd = {
+ .id = id,
+ .len = len,
+ .data = data,
+ };
+
+ cmd.flags |= CMD_ASYNC;
+ cmd.callback = callback;
+
+ return il_send_cmd_async(il, &cmd);
+}
+EXPORT_SYMBOL(il_send_cmd_pdu_async);
+
+/* default: IL_LED_BLINK(0) using blinking idx table */
+static int led_mode;
+module_param(led_mode, int, S_IRUGO);
+MODULE_PARM_DESC(led_mode,
+ "0=system default, " "1=On(RF On)/Off(RF Off), 2=blinking");
+
+/* Throughput OFF time(ms) ON time (ms)
+ * >300 25 25
+ * >200 to 300 40 40
+ * >100 to 200 55 55
+ * >70 to 100 65 65
+ * >50 to 70 75 75
+ * >20 to 50 85 85
+ * >10 to 20 95 95
+ * >5 to 10 110 110
+ * >1 to 5 130 130
+ * >0 to 1 167 167
+ * <=0 SOLID ON
+ */
+static const struct ieee80211_tpt_blink il_blink[] = {
+ {.throughput = 0, .blink_time = 334},
+ {.throughput = 1 * 1024 - 1, .blink_time = 260},
+ {.throughput = 5 * 1024 - 1, .blink_time = 220},
+ {.throughput = 10 * 1024 - 1, .blink_time = 190},
+ {.throughput = 20 * 1024 - 1, .blink_time = 170},
+ {.throughput = 50 * 1024 - 1, .blink_time = 150},
+ {.throughput = 70 * 1024 - 1, .blink_time = 130},
+ {.throughput = 100 * 1024 - 1, .blink_time = 110},
+ {.throughput = 200 * 1024 - 1, .blink_time = 80},
+ {.throughput = 300 * 1024 - 1, .blink_time = 50},
+};
+
+/*
+ * Adjust led blink rate to compensate on a MAC Clock difference on every HW
+ * Led blink rate analysis showed an average deviation of 0% on 3945,
+ * 5% on 4965 HW.
+ * Need to compensate on the led on/off time per HW according to the deviation
+ * to achieve the desired led frequency
+ * The calculation is: (100-averageDeviation)/100 * blinkTime
+ * For code efficiency the calculation will be:
+ * compensation = (100 - averageDeviation) * 64 / 100
+ * NewBlinkTime = (compensation * BlinkTime) / 64
+ */
+static inline u8
+il_blink_compensation(struct il_priv *il, u8 time, u16 compensation)
+{
+ if (!compensation) {
+ IL_ERR("undefined blink compensation: "
+ "use pre-defined blinking time\n");
+ return time;
+ }
+
+ return (u8) ((time * compensation) >> 6);
+}
+
+/* Set led pattern command */
+static int
+il_led_cmd(struct il_priv *il, unsigned long on, unsigned long off)
+{
+ struct il_led_cmd led_cmd = {
+ .id = IL_LED_LINK,
+ .interval = IL_DEF_LED_INTRVL
+ };
+ int ret;
+
+ if (!test_bit(S_READY, &il->status))
+ return -EBUSY;
+
+ if (il->blink_on == on && il->blink_off == off)
+ return 0;
+
+ if (off == 0) {
+ /* led is SOLID_ON */
+ on = IL_LED_SOLID;
+ }
+
+ D_LED("Led blink time compensation=%u\n",
+ il->cfg->base_params->led_compensation);
+ led_cmd.on =
+ il_blink_compensation(il, on,
+ il->cfg->base_params->led_compensation);
+ led_cmd.off =
+ il_blink_compensation(il, off,
+ il->cfg->base_params->led_compensation);
+
+ ret = il->cfg->ops->led->cmd(il, &led_cmd);
+ if (!ret) {
+ il->blink_on = on;
+ il->blink_off = off;
+ }
+ return ret;
+}
+
+static void
+il_led_brightness_set(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
+{
+ struct il_priv *il = container_of(led_cdev, struct il_priv, led);
+ unsigned long on = 0;
+
+ if (brightness > 0)
+ on = IL_LED_SOLID;
+
+ il_led_cmd(il, on, 0);
+}
+
+static int
+il_led_blink_set(struct led_classdev *led_cdev, unsigned long *delay_on,
+ unsigned long *delay_off)
+{
+ struct il_priv *il = container_of(led_cdev, struct il_priv, led);
+
+ return il_led_cmd(il, *delay_on, *delay_off);
+}
+
+void
+il_leds_init(struct il_priv *il)
+{
+ int mode = led_mode;
+ int ret;
+
+ if (mode == IL_LED_DEFAULT)
+ mode = il->cfg->led_mode;
+
+ il->led.name =
+ kasprintf(GFP_KERNEL, "%s-led", wiphy_name(il->hw->wiphy));
+ il->led.brightness_set = il_led_brightness_set;
+ il->led.blink_set = il_led_blink_set;
+ il->led.max_brightness = 1;
+
+ switch (mode) {
+ case IL_LED_DEFAULT:
+ WARN_ON(1);
+ break;
+ case IL_LED_BLINK:
+ il->led.default_trigger =
+ ieee80211_create_tpt_led_trigger(il->hw,
+ IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
+ il_blink,
+ ARRAY_SIZE(il_blink));
+ break;
+ case IL_LED_RF_STATE:
+ il->led.default_trigger = ieee80211_get_radio_led_name(il->hw);
+ break;
+ }
+
+ ret = led_classdev_register(&il->pci_dev->dev, &il->led);
+ if (ret) {
+ kfree(il->led.name);
+ return;
+ }
+
+ il->led_registered = true;
+}
+EXPORT_SYMBOL(il_leds_init);
+
+void
+il_leds_exit(struct il_priv *il)
+{
+ if (!il->led_registered)
+ return;
+
+ led_classdev_unregister(&il->led);
+ kfree(il->led.name);
+}
+EXPORT_SYMBOL(il_leds_exit);
+
+/************************** EEPROM BANDS ****************************
+ *
+ * The il_eeprom_band definitions below provide the mapping from the
+ * EEPROM contents to the specific channel number supported for each
+ * band.
+ *
+ * For example, il_priv->eeprom.band_3_channels[4] from the band_3
+ * definition below maps to physical channel 42 in the 5.2GHz spectrum.
+ * The specific geography and calibration information for that channel
+ * is contained in the eeprom map itself.
+ *
+ * During init, we copy the eeprom information and channel map
+ * information into il->channel_info_24/52 and il->channel_map_24/52
+ *
+ * channel_map_24/52 provides the idx in the channel_info array for a
+ * given channel. We have to have two separate maps as there is channel
+ * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
+ * band_2
+ *
+ * A value of 0xff stored in the channel_map indicates that the channel
+ * is not supported by the hardware at all.
+ *
+ * A value of 0xfe in the channel_map indicates that the channel is not
+ * valid for Tx with the current hardware. This means that
+ * while the system can tune and receive on a given channel, it may not
+ * be able to associate or transmit any frames on that
+ * channel. There is no corresponding channel information for that
+ * entry.
+ *
+ *********************************************************************/
+
+/* 2.4 GHz */
+const u8 il_eeprom_band_1[14] = {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+};
+
+/* 5.2 GHz bands */
+static const u8 il_eeprom_band_2[] = { /* 4915-5080MHz */
+ 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
+};
+
+static const u8 il_eeprom_band_3[] = { /* 5170-5320MHz */
+ 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+};
+
+static const u8 il_eeprom_band_4[] = { /* 5500-5700MHz */
+ 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+};
+
+static const u8 il_eeprom_band_5[] = { /* 5725-5825MHz */
+ 145, 149, 153, 157, 161, 165
+};
+
+static const u8 il_eeprom_band_6[] = { /* 2.4 ht40 channel */
+ 1, 2, 3, 4, 5, 6, 7
+};
+
+static const u8 il_eeprom_band_7[] = { /* 5.2 ht40 channel */
+ 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
+};
+
+/******************************************************************************
+ *
+ * EEPROM related functions
+ *
+******************************************************************************/
+
+static int
+il_eeprom_verify_signature(struct il_priv *il)
+{
+ u32 gp = _il_rd(il, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK;
+ int ret = 0;
+
+ D_EEPROM("EEPROM signature=0x%08x\n", gp);
+ switch (gp) {
+ case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K:
+ case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K:
+ break;
+ default:
+ IL_ERR("bad EEPROM signature," "EEPROM_GP=0x%08x\n", gp);
+ ret = -ENOENT;
+ break;
+ }
+ return ret;
+}
+
+const u8 *
+il_eeprom_query_addr(const struct il_priv *il, size_t offset)
+{
+ BUG_ON(offset >= il->cfg->base_params->eeprom_size);
+ return &il->eeprom[offset];
+}
+EXPORT_SYMBOL(il_eeprom_query_addr);
+
+u16
+il_eeprom_query16(const struct il_priv *il, size_t offset)
+{
+ if (!il->eeprom)
+ return 0;
+ return (u16) il->eeprom[offset] | ((u16) il->eeprom[offset + 1] << 8);
+}
+EXPORT_SYMBOL(il_eeprom_query16);
+
+/**
+ * il_eeprom_init - read EEPROM contents
+ *
+ * Load the EEPROM contents from adapter into il->eeprom
+ *
+ * NOTE: This routine uses the non-debug IO access functions.
+ */
+int
+il_eeprom_init(struct il_priv *il)
+{
+ __le16 *e;
+ u32 gp = _il_rd(il, CSR_EEPROM_GP);
+ int sz;
+ int ret;
+ u16 addr;
+
+ /* allocate eeprom */
+ sz = il->cfg->base_params->eeprom_size;
+ D_EEPROM("NVM size = %d\n", sz);
+ il->eeprom = kzalloc(sz, GFP_KERNEL);
+ if (!il->eeprom) {
+ ret = -ENOMEM;
+ goto alloc_err;
+ }
+ e = (__le16 *) il->eeprom;
+
+ il->cfg->ops->lib->apm_ops.init(il);
+
+ ret = il_eeprom_verify_signature(il);
+ if (ret < 0) {
+ IL_ERR("EEPROM not found, EEPROM_GP=0x%08x\n", gp);
+ ret = -ENOENT;
+ goto err;
+ }
+
+ /* Make sure driver (instead of uCode) is allowed to read EEPROM */
+ ret = il->cfg->ops->lib->eeprom_ops.acquire_semaphore(il);
+ if (ret < 0) {
+ IL_ERR("Failed to acquire EEPROM semaphore.\n");
+ ret = -ENOENT;
+ goto err;
+ }
+
+ /* eeprom is an array of 16bit values */
+ for (addr = 0; addr < sz; addr += sizeof(u16)) {
+ u32 r;
+
+ _il_wr(il, CSR_EEPROM_REG,
+ CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
+
+ ret =
+ _il_poll_bit(il, CSR_EEPROM_REG,
+ CSR_EEPROM_REG_READ_VALID_MSK,
+ CSR_EEPROM_REG_READ_VALID_MSK,
+ IL_EEPROM_ACCESS_TIMEOUT);
+ if (ret < 0) {
+ IL_ERR("Time out reading EEPROM[%d]\n", addr);
+ goto done;
+ }
+ r = _il_rd(il, CSR_EEPROM_REG);
+ e[addr / 2] = cpu_to_le16(r >> 16);
+ }
+
+ D_EEPROM("NVM Type: %s, version: 0x%x\n", "EEPROM",
+ il_eeprom_query16(il, EEPROM_VERSION));
+
+ ret = 0;
+done:
+ il->cfg->ops->lib->eeprom_ops.release_semaphore(il);
+
+err:
+ if (ret)
+ il_eeprom_free(il);
+ /* Reset chip to save power until we load uCode during "up". */
+ il_apm_stop(il);
+alloc_err:
+ return ret;
+}
+EXPORT_SYMBOL(il_eeprom_init);
+
+void
+il_eeprom_free(struct il_priv *il)
+{
+ kfree(il->eeprom);
+ il->eeprom = NULL;
+}
+EXPORT_SYMBOL(il_eeprom_free);
+
+static void
+il_init_band_reference(const struct il_priv *il, int eep_band,
+ int *eeprom_ch_count,
+ const struct il_eeprom_channel **eeprom_ch_info,
+ const u8 **eeprom_ch_idx)
+{
+ u32 offset =
+ il->cfg->ops->lib->eeprom_ops.regulatory_bands[eep_band - 1];
+ switch (eep_band) {
+ case 1: /* 2.4GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_1);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_1;
+ break;
+ case 2: /* 4.9GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_2);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_2;
+ break;
+ case 3: /* 5.2GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_3);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_3;
+ break;
+ case 4: /* 5.5GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_4);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_4;
+ break;
+ case 5: /* 5.7GHz band */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_5);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_5;
+ break;
+ case 6: /* 2.4GHz ht40 channels */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_6);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_6;
+ break;
+ case 7: /* 5 GHz ht40 channels */
+ *eeprom_ch_count = ARRAY_SIZE(il_eeprom_band_7);
+ *eeprom_ch_info =
+ (struct il_eeprom_channel *)il_eeprom_query_addr(il,
+ offset);
+ *eeprom_ch_idx = il_eeprom_band_7;
+ break;
+ default:
+ BUG();
+ }
+}
+
+#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
+ ? # x " " : "")
+/**
+ * il_mod_ht40_chan_info - Copy ht40 channel info into driver's il.
+ *
+ * Does not set up a command, or touch hardware.
+ */
+static int
+il_mod_ht40_chan_info(struct il_priv *il, enum ieee80211_band band, u16 channel,
+ const struct il_eeprom_channel *eeprom_ch,
+ u8 clear_ht40_extension_channel)
+{
+ struct il_channel_info *ch_info;
+
+ ch_info =
+ (struct il_channel_info *)il_get_channel_info(il, band, channel);
+
+ if (!il_is_channel_valid(ch_info))
+ return -1;
+
+ D_EEPROM("HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
+ " Ad-Hoc %ssupported\n", ch_info->channel,
+ il_is_channel_a_band(ch_info) ? "5.2" : "2.4",
+ CHECK_AND_PRINT(IBSS), CHECK_AND_PRINT(ACTIVE),
+ CHECK_AND_PRINT(RADAR), CHECK_AND_PRINT(WIDE),
+ CHECK_AND_PRINT(DFS), eeprom_ch->flags,
+ eeprom_ch->max_power_avg,
+ ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS) &&
+ !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ? "" : "not ");
+
+ ch_info->ht40_eeprom = *eeprom_ch;
+ ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
+ ch_info->ht40_flags = eeprom_ch->flags;
+ if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
+ ch_info->ht40_extension_channel &=
+ ~clear_ht40_extension_channel;
+
+ return 0;
+}
+
+#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
+ ? # x " " : "")
+
+/**
+ * il_init_channel_map - Set up driver's info for all possible channels
+ */
+int
+il_init_channel_map(struct il_priv *il)
+{
+ int eeprom_ch_count = 0;
+ const u8 *eeprom_ch_idx = NULL;
+ const struct il_eeprom_channel *eeprom_ch_info = NULL;
+ int band, ch;
+ struct il_channel_info *ch_info;
+
+ if (il->channel_count) {
+ D_EEPROM("Channel map already initialized.\n");
+ return 0;
+ }
+
+ D_EEPROM("Initializing regulatory info from EEPROM\n");
+
+ il->channel_count =
+ ARRAY_SIZE(il_eeprom_band_1) + ARRAY_SIZE(il_eeprom_band_2) +
+ ARRAY_SIZE(il_eeprom_band_3) + ARRAY_SIZE(il_eeprom_band_4) +
+ ARRAY_SIZE(il_eeprom_band_5);
+
+ D_EEPROM("Parsing data for %d channels.\n", il->channel_count);
+
+ il->channel_info =
+ kzalloc(sizeof(struct il_channel_info) * il->channel_count,
+ GFP_KERNEL);
+ if (!il->channel_info) {
+ IL_ERR("Could not allocate channel_info\n");
+ il->channel_count = 0;
+ return -ENOMEM;
+ }
+
+ ch_info = il->channel_info;
+
+ /* Loop through the 5 EEPROM bands adding them in order to the
+ * channel map we maintain (that contains additional information than
+ * what just in the EEPROM) */
+ for (band = 1; band <= 5; band++) {
+
+ il_init_band_reference(il, band, &eeprom_ch_count,
+ &eeprom_ch_info, &eeprom_ch_idx);
+
+ /* Loop through each band adding each of the channels */
+ for (ch = 0; ch < eeprom_ch_count; ch++) {
+ ch_info->channel = eeprom_ch_idx[ch];
+ ch_info->band =
+ (band ==
+ 1) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+
+ /* permanently store EEPROM's channel regulatory flags
+ * and max power in channel info database. */
+ ch_info->eeprom = eeprom_ch_info[ch];
+
+ /* Copy the run-time flags so they are there even on
+ * invalid channels */
+ ch_info->flags = eeprom_ch_info[ch].flags;
+ /* First write that ht40 is not enabled, and then enable
+ * one by one */
+ ch_info->ht40_extension_channel =
+ IEEE80211_CHAN_NO_HT40;
+
+ if (!(il_is_channel_valid(ch_info))) {
+ D_EEPROM("Ch. %d Flags %x [%sGHz] - "
+ "No traffic\n", ch_info->channel,
+ ch_info->flags,
+ il_is_channel_a_band(ch_info) ? "5.2" :
+ "2.4");
+ ch_info++;
+ continue;
+ }
+
+ /* Initialize regulatory-based run-time data */
+ ch_info->max_power_avg = ch_info->curr_txpow =
+ eeprom_ch_info[ch].max_power_avg;
+ ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
+ ch_info->min_power = 0;
+
+ D_EEPROM("Ch. %d [%sGHz] " "%s%s%s%s%s%s(0x%02x %ddBm):"
+ " Ad-Hoc %ssupported\n", ch_info->channel,
+ il_is_channel_a_band(ch_info) ? "5.2" : "2.4",
+ CHECK_AND_PRINT_I(VALID),
+ CHECK_AND_PRINT_I(IBSS),
+ CHECK_AND_PRINT_I(ACTIVE),
+ CHECK_AND_PRINT_I(RADAR),
+ CHECK_AND_PRINT_I(WIDE),
+ CHECK_AND_PRINT_I(DFS),
+ eeprom_ch_info[ch].flags,
+ eeprom_ch_info[ch].max_power_avg,
+ ((eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_IBSS) &&
+ !(eeprom_ch_info[ch].
+ flags & EEPROM_CHANNEL_RADAR)) ? "" :
+ "not ");
+
+ ch_info++;
+ }
+ }
+
+ /* Check if we do have HT40 channels */
+ if (il->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
+ EEPROM_REGULATORY_BAND_NO_HT40 &&
+ il->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
+ EEPROM_REGULATORY_BAND_NO_HT40)
+ return 0;
+
+ /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
+ for (band = 6; band <= 7; band++) {
+ enum ieee80211_band ieeeband;
+
+ il_init_band_reference(il, band, &eeprom_ch_count,
+ &eeprom_ch_info, &eeprom_ch_idx);
+
+ /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
+ ieeeband =
+ (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
+
+ /* Loop through each band adding each of the channels */
+ for (ch = 0; ch < eeprom_ch_count; ch++) {
+ /* Set up driver's info for lower half */
+ il_mod_ht40_chan_info(il, ieeeband, eeprom_ch_idx[ch],
+ &eeprom_ch_info[ch],
+ IEEE80211_CHAN_NO_HT40PLUS);
+
+ /* Set up driver's info for upper half */
+ il_mod_ht40_chan_info(il, ieeeband,
+ eeprom_ch_idx[ch] + 4,
+ &eeprom_ch_info[ch],
+ IEEE80211_CHAN_NO_HT40MINUS);
+ }
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(il_init_channel_map);
+
+/*
+ * il_free_channel_map - undo allocations in il_init_channel_map
+ */
+void
+il_free_channel_map(struct il_priv *il)
+{
+ kfree(il->channel_info);
+ il->channel_count = 0;
+}
+EXPORT_SYMBOL(il_free_channel_map);
+
+/**
+ * il_get_channel_info - Find driver's ilate channel info
+ *
+ * Based on band and channel number.
+ */
+const struct il_channel_info *
+il_get_channel_info(const struct il_priv *il, enum ieee80211_band band,
+ u16 channel)
+{
+ int i;
+
+ switch (band) {
+ case IEEE80211_BAND_5GHZ:
+ for (i = 14; i < il->channel_count; i++) {
+ if (il->channel_info[i].channel == channel)
+ return &il->channel_info[i];
+ }
+ break;
+ case IEEE80211_BAND_2GHZ:
+ if (channel >= 1 && channel <= 14)
+ return &il->channel_info[channel - 1];
+ break;
+ default:
+ BUG();
+ }
+
+ return NULL;
+}
+EXPORT_SYMBOL(il_get_channel_info);
+
+/*
+ * Setting power level allows the card to go to sleep when not busy.
+ *
+ * We calculate a sleep command based on the required latency, which
+ * we get from mac80211. In order to handle thermal throttling, we can
+ * also use pre-defined power levels.
+ */
+
+/*
+ * This defines the old power levels. They are still used by default
+ * (level 1) and for thermal throttle (levels 3 through 5)
+ */
+
+struct il_power_vec_entry {
+ struct il_powertable_cmd cmd;
+ u8 no_dtim; /* number of skip dtim */
+};
+
+static void
+il_power_sleep_cam_cmd(struct il_priv *il, struct il_powertable_cmd *cmd)
+{
+ memset(cmd, 0, sizeof(*cmd));
+
+ if (il->power_data.pci_pm)
+ cmd->flags |= IL_POWER_PCI_PM_MSK;
+
+ D_POWER("Sleep command for CAM\n");
+}
+
+static int
+il_set_power(struct il_priv *il, struct il_powertable_cmd *cmd)
+{
+ D_POWER("Sending power/sleep command\n");
+ D_POWER("Flags value = 0x%08X\n", cmd->flags);
+ D_POWER("Tx timeout = %u\n", le32_to_cpu(cmd->tx_data_timeout));
+ D_POWER("Rx timeout = %u\n", le32_to_cpu(cmd->rx_data_timeout));
+ D_POWER("Sleep interval vector = { %d , %d , %d , %d , %d }\n",
+ le32_to_cpu(cmd->sleep_interval[0]),
+ le32_to_cpu(cmd->sleep_interval[1]),
+ le32_to_cpu(cmd->sleep_interval[2]),
+ le32_to_cpu(cmd->sleep_interval[3]),
+ le32_to_cpu(cmd->sleep_interval[4]));
+
+ return il_send_cmd_pdu(il, C_POWER_TBL,
+ sizeof(struct il_powertable_cmd), cmd);
+}
+
+int
+il_power_set_mode(struct il_priv *il, struct il_powertable_cmd *cmd, bool force)
+{
+ int ret;
+ bool update_chains;
+
+ lockdep_assert_held(&il->mutex);
+
+ /* Don't update the RX chain when chain noise calibration is running */
+ update_chains = il->chain_noise_data.state == IL_CHAIN_NOISE_DONE ||
+ il->chain_noise_data.state == IL_CHAIN_NOISE_ALIVE;
+
+ if (!memcmp(&il->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force)
+ return 0;
+
+ if (!il_is_ready_rf(il))
+ return -EIO;
+
+ /* scan complete use sleep_power_next, need to be updated */
+ memcpy(&il->power_data.sleep_cmd_next, cmd, sizeof(*cmd));
+ if (test_bit(S_SCANNING, &il->status) && !force) {
+ D_INFO("Defer power set mode while scanning\n");
+ return 0;
+ }
+
+ if (cmd->flags & IL_POWER_DRIVER_ALLOW_SLEEP_MSK)
+ set_bit(S_POWER_PMI, &il->status);
+
+ ret = il_set_power(il, cmd);
+ if (!ret) {
+ if (!(cmd->flags & IL_POWER_DRIVER_ALLOW_SLEEP_MSK))
+ clear_bit(S_POWER_PMI, &il->status);
+
+ if (il->cfg->ops->lib->update_chain_flags && update_chains)
+ il->cfg->ops->lib->update_chain_flags(il);
+ else if (il->cfg->ops->lib->update_chain_flags)
+ D_POWER("Cannot update the power, chain noise "
+ "calibration running: %d\n",
+ il->chain_noise_data.state);
+
+ memcpy(&il->power_data.sleep_cmd, cmd, sizeof(*cmd));
+ } else
+ IL_ERR("set power fail, ret = %d", ret);
+
+ return ret;
+}
+
+int
+il_power_update_mode(struct il_priv *il, bool force)
+{
+ struct il_powertable_cmd cmd;
+
+ il_power_sleep_cam_cmd(il, &cmd);
+ return il_power_set_mode(il, &cmd, force);
+}
+EXPORT_SYMBOL(il_power_update_mode);
+
+/* initialize to default */
+void
+il_power_initialize(struct il_priv *il)
+{
+ u16 lctl = il_pcie_link_ctl(il);
+
+ il->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
+
+ il->power_data.debug_sleep_level_override = -1;
+
+ memset(&il->power_data.sleep_cmd, 0, sizeof(il->power_data.sleep_cmd));
+}
+EXPORT_SYMBOL(il_power_initialize);
+
+/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
+ * sending probe req. This should be set long enough to hear probe responses
+ * from more than one AP. */
+#define IL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
+#define IL_ACTIVE_DWELL_TIME_52 (20)
+
+#define IL_ACTIVE_DWELL_FACTOR_24GHZ (3)
+#define IL_ACTIVE_DWELL_FACTOR_52GHZ (2)
+
+/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
+ * Must be set longer than active dwell time.
+ * For the most reliable scan, set > AP beacon interval (typically 100msec). */
+#define IL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
+#define IL_PASSIVE_DWELL_TIME_52 (10)
+#define IL_PASSIVE_DWELL_BASE (100)
+#define IL_CHANNEL_TUNE_TIME 5
+
+static int
+il_send_scan_abort(struct il_priv *il)
+{
+ int ret;
+ struct il_rx_pkt *pkt;
+ struct il_host_cmd cmd = {
+ .id = C_SCAN_ABORT,
+ .flags = CMD_WANT_SKB,
+ };
+
+ /* Exit instantly with error when device is not ready
+ * to receive scan abort command or it does not perform
+ * hardware scan currently */
+ if (!test_bit(S_READY, &il->status) ||
+ !test_bit(S_GEO_CONFIGURED, &il->status) ||
+ !test_bit(S_SCAN_HW, &il->status) ||
+ test_bit(S_FW_ERROR, &il->status) ||
+ test_bit(S_EXIT_PENDING, &il->status))
+ return -EIO;
+
+ ret = il_send_cmd_sync(il, &cmd);
+ if (ret)
+ return ret;
+
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ if (pkt->u.status != CAN_ABORT_STATUS) {
+ /* The scan abort will return 1 for success or
+ * 2 for "failure". A failure condition can be
+ * due to simply not being in an active scan which
+ * can occur if we send the scan abort before we
+ * the microcode has notified us that a scan is
+ * completed. */
+ D_SCAN("SCAN_ABORT ret %d.\n", pkt->u.status);
+ ret = -EIO;
+ }
+
+ il_free_pages(il, cmd.reply_page);
+ return ret;
+}
+
+static void
+il_complete_scan(struct il_priv *il, bool aborted)
+{
+ /* check if scan was requested from mac80211 */
+ if (il->scan_request) {
+ D_SCAN("Complete scan in mac80211\n");
+ ieee80211_scan_completed(il->hw, aborted);
+ }
+
+ il->scan_vif = NULL;
+ il->scan_request = NULL;
+}
+
+void
+il_force_scan_end(struct il_priv *il)
+{
+ lockdep_assert_held(&il->mutex);
+
+ if (!test_bit(S_SCANNING, &il->status)) {
+ D_SCAN("Forcing scan end while not scanning\n");
+ return;
+ }
+
+ D_SCAN("Forcing scan end\n");
+ clear_bit(S_SCANNING, &il->status);
+ clear_bit(S_SCAN_HW, &il->status);
+ clear_bit(S_SCAN_ABORTING, &il->status);
+ il_complete_scan(il, true);
+}
+
+static void
+il_do_scan_abort(struct il_priv *il)
+{
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (!test_bit(S_SCANNING, &il->status)) {
+ D_SCAN("Not performing scan to abort\n");
+ return;
+ }
+
+ if (test_and_set_bit(S_SCAN_ABORTING, &il->status)) {
+ D_SCAN("Scan abort in progress\n");
+ return;
+ }
+
+ ret = il_send_scan_abort(il);
+ if (ret) {
+ D_SCAN("Send scan abort failed %d\n", ret);
+ il_force_scan_end(il);
+ } else
+ D_SCAN("Successfully send scan abort\n");
+}
+
+/**
+ * il_scan_cancel - Cancel any currently executing HW scan
+ */
+int
+il_scan_cancel(struct il_priv *il)
+{
+ D_SCAN("Queuing abort scan\n");
+ queue_work(il->workqueue, &il->abort_scan);
+ return 0;
+}
+EXPORT_SYMBOL(il_scan_cancel);
+
+/**
+ * il_scan_cancel_timeout - Cancel any currently executing HW scan
+ * @ms: amount of time to wait (in milliseconds) for scan to abort
+ *
+ */
+int
+il_scan_cancel_timeout(struct il_priv *il, unsigned long ms)
+{
+ unsigned long timeout = jiffies + msecs_to_jiffies(ms);
+
+ lockdep_assert_held(&il->mutex);
+
+ D_SCAN("Scan cancel timeout\n");
+
+ il_do_scan_abort(il);
+
+ while (time_before_eq(jiffies, timeout)) {
+ if (!test_bit(S_SCAN_HW, &il->status))
+ break;
+ msleep(20);
+ }
+
+ return test_bit(S_SCAN_HW, &il->status);
+}
+EXPORT_SYMBOL(il_scan_cancel_timeout);
+
+/* Service response to C_SCAN (0x80) */
+static void
+il_hdl_scan(struct il_priv *il, struct il_rx_buf *rxb)
+{
+#ifdef CONFIG_IWLEGACY_DEBUG
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_scanreq_notification *notif =
+ (struct il_scanreq_notification *)pkt->u.raw;
+
+ D_SCAN("Scan request status = 0x%x\n", notif->status);
+#endif
+}
+
+/* Service N_SCAN_START (0x82) */
+static void
+il_hdl_scan_start(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_scanstart_notification *notif =
+ (struct il_scanstart_notification *)pkt->u.raw;
+ il->scan_start_tsf = le32_to_cpu(notif->tsf_low);
+ D_SCAN("Scan start: " "%d [802.11%s] "
+ "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n", notif->channel,
+ notif->band ? "bg" : "a", le32_to_cpu(notif->tsf_high),
+ le32_to_cpu(notif->tsf_low), notif->status, notif->beacon_timer);
+}
+
+/* Service N_SCAN_RESULTS (0x83) */
+static void
+il_hdl_scan_results(struct il_priv *il, struct il_rx_buf *rxb)
+{
+#ifdef CONFIG_IWLEGACY_DEBUG
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_scanresults_notification *notif =
+ (struct il_scanresults_notification *)pkt->u.raw;
+
+ D_SCAN("Scan ch.res: " "%d [802.11%s] " "(TSF: 0x%08X:%08X) - %d "
+ "elapsed=%lu usec\n", notif->channel, notif->band ? "bg" : "a",
+ le32_to_cpu(notif->tsf_high), le32_to_cpu(notif->tsf_low),
+ le32_to_cpu(notif->stats[0]),
+ le32_to_cpu(notif->tsf_low) - il->scan_start_tsf);
+#endif
+}
+
+/* Service N_SCAN_COMPLETE (0x84) */
+static void
+il_hdl_scan_complete(struct il_priv *il, struct il_rx_buf *rxb)
+{
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
+#endif
+
+ D_SCAN("Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
+ scan_notif->scanned_channels, scan_notif->tsf_low,
+ scan_notif->tsf_high, scan_notif->status);
+
+ /* The HW is no longer scanning */
+ clear_bit(S_SCAN_HW, &il->status);
+
+ D_SCAN("Scan on %sGHz took %dms\n",
+ (il->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
+ jiffies_to_msecs(jiffies - il->scan_start));
+
+ queue_work(il->workqueue, &il->scan_completed);
+}
+
+void
+il_setup_rx_scan_handlers(struct il_priv *il)
+{
+ /* scan handlers */
+ il->handlers[C_SCAN] = il_hdl_scan;
+ il->handlers[N_SCAN_START] = il_hdl_scan_start;
+ il->handlers[N_SCAN_RESULTS] = il_hdl_scan_results;
+ il->handlers[N_SCAN_COMPLETE] = il_hdl_scan_complete;
+}
+EXPORT_SYMBOL(il_setup_rx_scan_handlers);
+
+inline u16
+il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band,
+ u8 n_probes)
+{
+ if (band == IEEE80211_BAND_5GHZ)
+ return IL_ACTIVE_DWELL_TIME_52 +
+ IL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
+ else
+ return IL_ACTIVE_DWELL_TIME_24 +
+ IL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
+}
+EXPORT_SYMBOL(il_get_active_dwell_time);
+
+u16
+il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band,
+ struct ieee80211_vif *vif)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+ u16 value;
+
+ u16 passive =
+ (band ==
+ IEEE80211_BAND_2GHZ) ? IL_PASSIVE_DWELL_BASE +
+ IL_PASSIVE_DWELL_TIME_24 : IL_PASSIVE_DWELL_BASE +
+ IL_PASSIVE_DWELL_TIME_52;
+
+ if (il_is_any_associated(il)) {
+ /*
+ * If we're associated, we clamp the maximum passive
+ * dwell time to be 98% of the smallest beacon interval
+ * (minus 2 * channel tune time)
+ */
+ value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0;
+ if (value > IL_PASSIVE_DWELL_BASE || !value)
+ value = IL_PASSIVE_DWELL_BASE;
+ value = (value * 98) / 100 - IL_CHANNEL_TUNE_TIME * 2;
+ passive = min(value, passive);
+ }
+
+ return passive;
+}
+EXPORT_SYMBOL(il_get_passive_dwell_time);
+
+void
+il_init_scan_params(struct il_priv *il)
+{
+ u8 ant_idx = fls(il->hw_params.valid_tx_ant) - 1;
+ if (!il->scan_tx_ant[IEEE80211_BAND_5GHZ])
+ il->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx;
+ if (!il->scan_tx_ant[IEEE80211_BAND_2GHZ])
+ il->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
+}
+EXPORT_SYMBOL(il_init_scan_params);
+
+static int
+il_scan_initiate(struct il_priv *il, struct ieee80211_vif *vif)
+{
+ int ret;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (WARN_ON(!il->cfg->ops->utils->request_scan))
+ return -EOPNOTSUPP;
+
+ cancel_delayed_work(&il->scan_check);
+
+ if (!il_is_ready_rf(il)) {
+ IL_WARN("Request scan called when driver not ready.\n");
+ return -EIO;
+ }
+
+ if (test_bit(S_SCAN_HW, &il->status)) {
+ D_SCAN("Multiple concurrent scan requests in parallel.\n");
+ return -EBUSY;
+ }
+
+ if (test_bit(S_SCAN_ABORTING, &il->status)) {
+ D_SCAN("Scan request while abort pending.\n");
+ return -EBUSY;
+ }
+
+ D_SCAN("Starting scan...\n");
+
+ set_bit(S_SCANNING, &il->status);
+ il->scan_start = jiffies;
+
+ ret = il->cfg->ops->utils->request_scan(il, vif);
+ if (ret) {
+ clear_bit(S_SCANNING, &il->status);
+ return ret;
+ }
+
+ queue_delayed_work(il->workqueue, &il->scan_check,
+ IL_SCAN_CHECK_WATCHDOG);
+
+ return 0;
+}
+
+int
+il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct cfg80211_scan_request *req)
+{
+ struct il_priv *il = hw->priv;
+ int ret;
+
+ D_MAC80211("enter\n");
+
+ if (req->n_channels == 0)
+ return -EINVAL;
+
+ mutex_lock(&il->mutex);
+
+ if (test_bit(S_SCANNING, &il->status)) {
+ D_SCAN("Scan already in progress.\n");
+ ret = -EAGAIN;
+ goto out_unlock;
+ }
+
+ /* mac80211 will only ask for one band at a time */
+ il->scan_request = req;
+ il->scan_vif = vif;
+ il->scan_band = req->channels[0]->band;
+
+ ret = il_scan_initiate(il, vif);
+
+ D_MAC80211("leave\n");
+
+out_unlock:
+ mutex_unlock(&il->mutex);
+
+ return ret;
+}
+EXPORT_SYMBOL(il_mac_hw_scan);
+
+static void
+il_bg_scan_check(struct work_struct *data)
+{
+ struct il_priv *il =
+ container_of(data, struct il_priv, scan_check.work);
+
+ D_SCAN("Scan check work\n");
+
+ /* Since we are here firmware does not finish scan and
+ * most likely is in bad shape, so we don't bother to
+ * send abort command, just force scan complete to mac80211 */
+ mutex_lock(&il->mutex);
+ il_force_scan_end(il);
+ mutex_unlock(&il->mutex);
+}
+
+/**
+ * il_fill_probe_req - fill in all required fields and IE for probe request
+ */
+
+u16
+il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
+ const u8 *ta, const u8 *ies, int ie_len, int left)
+{
+ int len = 0;
+ u8 *pos = NULL;
+
+ /* Make sure there is enough space for the probe request,
+ * two mandatory IEs and the data */
+ left -= 24;
+ if (left < 0)
+ return 0;
+
+ frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
+ memcpy(frame->da, il_bcast_addr, ETH_ALEN);
+ memcpy(frame->sa, ta, ETH_ALEN);
+ memcpy(frame->bssid, il_bcast_addr, ETH_ALEN);
+ frame->seq_ctrl = 0;
+
+ len += 24;
+
+ /* ...next IE... */
+ pos = &frame->u.probe_req.variable[0];
+
+ /* fill in our indirect SSID IE */
+ left -= 2;
+ if (left < 0)
+ return 0;
+ *pos++ = WLAN_EID_SSID;
+ *pos++ = 0;
+
+ len += 2;
+
+ if (WARN_ON(left < ie_len))
+ return len;
+
+ if (ies && ie_len) {
+ memcpy(pos, ies, ie_len);
+ len += ie_len;
+ }
+
+ return (u16) len;
+}
+EXPORT_SYMBOL(il_fill_probe_req);
+
+static void
+il_bg_abort_scan(struct work_struct *work)
+{
+ struct il_priv *il = container_of(work, struct il_priv, abort_scan);
+
+ D_SCAN("Abort scan work\n");
+
+ /* We keep scan_check work queued in case when firmware will not
+ * report back scan completed notification */
+ mutex_lock(&il->mutex);
+ il_scan_cancel_timeout(il, 200);
+ mutex_unlock(&il->mutex);
+}
+
+static void
+il_bg_scan_completed(struct work_struct *work)
+{
+ struct il_priv *il = container_of(work, struct il_priv, scan_completed);
+ bool aborted;
+
+ D_SCAN("Completed scan.\n");
+
+ cancel_delayed_work(&il->scan_check);
+
+ mutex_lock(&il->mutex);
+
+ aborted = test_and_clear_bit(S_SCAN_ABORTING, &il->status);
+ if (aborted)
+ D_SCAN("Aborted scan completed.\n");
+
+ if (!test_and_clear_bit(S_SCANNING, &il->status)) {
+ D_SCAN("Scan already completed.\n");
+ goto out_settings;
+ }
+
+ il_complete_scan(il, aborted);
+
+out_settings:
+ /* Can we still talk to firmware ? */
+ if (!il_is_ready_rf(il))
+ goto out;
+
+ /*
+ * We do not commit power settings while scan is pending,
+ * do it now if the settings changed.
+ */
+ il_power_set_mode(il, &il->power_data.sleep_cmd_next, false);
+ il_set_tx_power(il, il->tx_power_next, false);
+
+ il->cfg->ops->utils->post_scan(il);
+
+out:
+ mutex_unlock(&il->mutex);
+}
+
+void
+il_setup_scan_deferred_work(struct il_priv *il)
+{
+ INIT_WORK(&il->scan_completed, il_bg_scan_completed);
+ INIT_WORK(&il->abort_scan, il_bg_abort_scan);
+ INIT_DELAYED_WORK(&il->scan_check, il_bg_scan_check);
+}
+EXPORT_SYMBOL(il_setup_scan_deferred_work);
+
+void
+il_cancel_scan_deferred_work(struct il_priv *il)
+{
+ cancel_work_sync(&il->abort_scan);
+ cancel_work_sync(&il->scan_completed);
+
+ if (cancel_delayed_work_sync(&il->scan_check)) {
+ mutex_lock(&il->mutex);
+ il_force_scan_end(il);
+ mutex_unlock(&il->mutex);
+ }
+}
+EXPORT_SYMBOL(il_cancel_scan_deferred_work);
+
+/* il->sta_lock must be held */
+static void
+il_sta_ucode_activate(struct il_priv *il, u8 sta_id)
+{
+
+ if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE))
+ IL_ERR("ACTIVATE a non DRIVER active station id %u addr %pM\n",
+ sta_id, il->stations[sta_id].sta.sta.addr);
+
+ if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) {
+ D_ASSOC("STA id %u addr %pM already present"
+ " in uCode (according to driver)\n", sta_id,
+ il->stations[sta_id].sta.sta.addr);
+ } else {
+ il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE;
+ D_ASSOC("Added STA id %u addr %pM to uCode\n", sta_id,
+ il->stations[sta_id].sta.sta.addr);
+ }
+}
+
+static int
+il_process_add_sta_resp(struct il_priv *il, struct il_addsta_cmd *addsta,
+ struct il_rx_pkt *pkt, bool sync)
+{
+ u8 sta_id = addsta->sta.sta_id;
+ unsigned long flags;
+ int ret = -EIO;
+
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from C_ADD_STA (0x%08X)\n", pkt->hdr.flags);
+ return ret;
+ }
+
+ D_INFO("Processing response for adding station %u\n", sta_id);
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ switch (pkt->u.add_sta.status) {
+ case ADD_STA_SUCCESS_MSK:
+ D_INFO("C_ADD_STA PASSED\n");
+ il_sta_ucode_activate(il, sta_id);
+ ret = 0;
+ break;
+ case ADD_STA_NO_ROOM_IN_TBL:
+ IL_ERR("Adding station %d failed, no room in table.\n", sta_id);
+ break;
+ case ADD_STA_NO_BLOCK_ACK_RESOURCE:
+ IL_ERR("Adding station %d failed, no block ack resource.\n",
+ sta_id);
+ break;
+ case ADD_STA_MODIFY_NON_EXIST_STA:
+ IL_ERR("Attempting to modify non-existing station %d\n",
+ sta_id);
+ break;
+ default:
+ D_ASSOC("Received C_ADD_STA:(0x%08X)\n", pkt->u.add_sta.status);
+ break;
+ }
+
+ D_INFO("%s station id %u addr %pM\n",
+ il->stations[sta_id].sta.mode ==
+ STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", sta_id,
+ il->stations[sta_id].sta.sta.addr);
+
+ /*
+ * XXX: The MAC address in the command buffer is often changed from
+ * the original sent to the device. That is, the MAC address
+ * written to the command buffer often is not the same MAC address
+ * read from the command buffer when the command returns. This
+ * issue has not yet been resolved and this debugging is left to
+ * observe the problem.
+ */
+ D_INFO("%s station according to cmd buffer %pM\n",
+ il->stations[sta_id].sta.mode ==
+ STA_CONTROL_MODIFY_MSK ? "Modified" : "Added", addsta->sta.addr);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return ret;
+}
+
+static void
+il_add_sta_callback(struct il_priv *il, struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt)
+{
+ struct il_addsta_cmd *addsta = (struct il_addsta_cmd *)cmd->cmd.payload;
+
+ il_process_add_sta_resp(il, addsta, pkt, false);
+
+}
+
+int
+il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags)
+{
+ struct il_rx_pkt *pkt = NULL;
+ int ret = 0;
+ u8 data[sizeof(*sta)];
+ struct il_host_cmd cmd = {
+ .id = C_ADD_STA,
+ .flags = flags,
+ .data = data,
+ };
+ u8 sta_id __maybe_unused = sta->sta.sta_id;
+
+ D_INFO("Adding sta %u (%pM) %ssynchronously\n", sta_id, sta->sta.addr,
+ flags & CMD_ASYNC ? "a" : "");
+
+ if (flags & CMD_ASYNC)
+ cmd.callback = il_add_sta_callback;
+ else {
+ cmd.flags |= CMD_WANT_SKB;
+ might_sleep();
+ }
+
+ cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data);
+ ret = il_send_cmd(il, &cmd);
+
+ if (ret || (flags & CMD_ASYNC))
+ return ret;
+
+ if (ret == 0) {
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ ret = il_process_add_sta_resp(il, sta, pkt, true);
+ }
+ il_free_pages(il, cmd.reply_page);
+
+ return ret;
+}
+EXPORT_SYMBOL(il_send_add_sta);
+
+static void
+il_set_ht_add_station(struct il_priv *il, u8 idx, struct ieee80211_sta *sta,
+ struct il_rxon_context *ctx)
+{
+ struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
+ __le32 sta_flags;
+ u8 mimo_ps_mode;
+
+ if (!sta || !sta_ht_inf->ht_supported)
+ goto done;
+
+ mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
+ D_ASSOC("spatial multiplexing power save mode: %s\n",
+ (mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ? "static" :
+ (mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ? "dynamic" :
+ "disabled");
+
+ sta_flags = il->stations[idx].sta.station_flags;
+
+ sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
+
+ switch (mimo_ps_mode) {
+ case WLAN_HT_CAP_SM_PS_STATIC:
+ sta_flags |= STA_FLG_MIMO_DIS_MSK;
+ break;
+ case WLAN_HT_CAP_SM_PS_DYNAMIC:
+ sta_flags |= STA_FLG_RTS_MIMO_PROT_MSK;
+ break;
+ case WLAN_HT_CAP_SM_PS_DISABLED:
+ break;
+ default:
+ IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode);
+ break;
+ }
+
+ sta_flags |=
+ cpu_to_le32((u32) sta_ht_inf->
+ ampdu_factor << STA_FLG_MAX_AGG_SIZE_POS);
+
+ sta_flags |=
+ cpu_to_le32((u32) sta_ht_inf->
+ ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
+
+ if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap))
+ sta_flags |= STA_FLG_HT40_EN_MSK;
+ else
+ sta_flags &= ~STA_FLG_HT40_EN_MSK;
+
+ il->stations[idx].sta.station_flags = sta_flags;
+done:
+ return;
+}
+
+/**
+ * il_prep_station - Prepare station information for addition
+ *
+ * should be called with sta_lock held
+ */
+u8
+il_prep_station(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, bool is_ap, struct ieee80211_sta *sta)
+{
+ struct il_station_entry *station;
+ int i;
+ u8 sta_id = IL_INVALID_STATION;
+ u16 rate;
+
+ if (is_ap)
+ sta_id = ctx->ap_sta_id;
+ else if (is_broadcast_ether_addr(addr))
+ sta_id = ctx->bcast_sta_id;
+ else
+ for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) {
+ if (!compare_ether_addr
+ (il->stations[i].sta.sta.addr, addr)) {
+ sta_id = i;
+ break;
+ }
+
+ if (!il->stations[i].used &&
+ sta_id == IL_INVALID_STATION)
+ sta_id = i;
+ }
+
+ /*
+ * These two conditions have the same outcome, but keep them
+ * separate
+ */
+ if (unlikely(sta_id == IL_INVALID_STATION))
+ return sta_id;
+
+ /*
+ * uCode is not able to deal with multiple requests to add a
+ * station. Keep track if one is in progress so that we do not send
+ * another.
+ */
+ if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
+ D_INFO("STA %d already in process of being added.\n", sta_id);
+ return sta_id;
+ }
+
+ if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
+ (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) &&
+ !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) {
+ D_ASSOC("STA %d (%pM) already added, not adding again.\n",
+ sta_id, addr);
+ return sta_id;
+ }
+
+ station = &il->stations[sta_id];
+ station->used = IL_STA_DRIVER_ACTIVE;
+ D_ASSOC("Add STA to driver ID %d: %pM\n", sta_id, addr);
+ il->num_stations++;
+
+ /* Set up the C_ADD_STA command to send to device */
+ memset(&station->sta, 0, sizeof(struct il_addsta_cmd));
+ memcpy(station->sta.sta.addr, addr, ETH_ALEN);
+ station->sta.mode = 0;
+ station->sta.sta.sta_id = sta_id;
+ station->sta.station_flags = ctx->station_flags;
+ station->ctxid = ctx->ctxid;
+
+ if (sta) {
+ struct il_station_priv_common *sta_priv;
+
+ sta_priv = (void *)sta->drv_priv;
+ sta_priv->ctx = ctx;
+ }
+
+ /*
+ * OK to call unconditionally, since local stations (IBSS BSSID
+ * STA and broadcast STA) pass in a NULL sta, and mac80211
+ * doesn't allow HT IBSS.
+ */
+ il_set_ht_add_station(il, sta_id, sta, ctx);
+
+ /* 3945 only */
+ rate = (il->band == IEEE80211_BAND_5GHZ) ? RATE_6M_PLCP : RATE_1M_PLCP;
+ /* Turn on both antennas for the station... */
+ station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
+
+ return sta_id;
+
+}
+EXPORT_SYMBOL_GPL(il_prep_station);
+
+#define STA_WAIT_TIMEOUT (HZ/2)
+
+/**
+ * il_add_station_common -
+ */
+int
+il_add_station_common(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, bool is_ap, struct ieee80211_sta *sta,
+ u8 *sta_id_r)
+{
+ unsigned long flags_spin;
+ int ret = 0;
+ u8 sta_id;
+ struct il_addsta_cmd sta_cmd;
+
+ *sta_id_r = 0;
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ sta_id = il_prep_station(il, ctx, addr, is_ap, sta);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Unable to prepare station %pM for addition\n", addr);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ return -EINVAL;
+ }
+
+ /*
+ * uCode is not able to deal with multiple requests to add a
+ * station. Keep track if one is in progress so that we do not send
+ * another.
+ */
+ if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
+ D_INFO("STA %d already in process of being added.\n", sta_id);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ return -EEXIST;
+ }
+
+ if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
+ (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
+ D_ASSOC("STA %d (%pM) already added, not adding again.\n",
+ sta_id, addr);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ return -EEXIST;
+ }
+
+ il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+
+ /* Add station to device's station table */
+ ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+ if (ret) {
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ IL_ERR("Adding station %pM failed.\n",
+ il->stations[sta_id].sta.sta.addr);
+ il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
+ il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ }
+ *sta_id_r = sta_id;
+ return ret;
+}
+EXPORT_SYMBOL(il_add_station_common);
+
+/**
+ * il_sta_ucode_deactivate - deactivate ucode status for a station
+ *
+ * il->sta_lock must be held
+ */
+static void
+il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id)
+{
+ /* Ucode must be active and driver must be non active */
+ if ((il->stations[sta_id].
+ used & (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) !=
+ IL_STA_UCODE_ACTIVE)
+ IL_ERR("removed non active STA %u\n", sta_id);
+
+ il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE;
+
+ memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry));
+ D_ASSOC("Removed STA %u\n", sta_id);
+}
+
+static int
+il_send_remove_station(struct il_priv *il, const u8 * addr, int sta_id,
+ bool temporary)
+{
+ struct il_rx_pkt *pkt;
+ int ret;
+
+ unsigned long flags_spin;
+ struct il_rem_sta_cmd rm_sta_cmd;
+
+ struct il_host_cmd cmd = {
+ .id = C_REM_STA,
+ .len = sizeof(struct il_rem_sta_cmd),
+ .flags = CMD_SYNC,
+ .data = &rm_sta_cmd,
+ };
+
+ memset(&rm_sta_cmd, 0, sizeof(rm_sta_cmd));
+ rm_sta_cmd.num_sta = 1;
+ memcpy(&rm_sta_cmd.addr, addr, ETH_ALEN);
+
+ cmd.flags |= CMD_WANT_SKB;
+
+ ret = il_send_cmd(il, &cmd);
+
+ if (ret)
+ return ret;
+
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from C_REM_STA (0x%08X)\n", pkt->hdr.flags);
+ ret = -EIO;
+ }
+
+ if (!ret) {
+ switch (pkt->u.rem_sta.status) {
+ case REM_STA_SUCCESS_MSK:
+ if (!temporary) {
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il_sta_ucode_deactivate(il, sta_id);
+ spin_unlock_irqrestore(&il->sta_lock,
+ flags_spin);
+ }
+ D_ASSOC("C_REM_STA PASSED\n");
+ break;
+ default:
+ ret = -EIO;
+ IL_ERR("C_REM_STA failed\n");
+ break;
+ }
+ }
+ il_free_pages(il, cmd.reply_page);
+
+ return ret;
+}
+
+/**
+ * il_remove_station - Remove driver's knowledge of station.
+ */
+int
+il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr)
+{
+ unsigned long flags;
+
+ if (!il_is_ready(il)) {
+ D_INFO("Unable to remove station %pM, device not ready.\n",
+ addr);
+ /*
+ * It is typical for stations to be removed when we are
+ * going down. Return success since device will be down
+ * soon anyway
+ */
+ return 0;
+ }
+
+ D_ASSOC("Removing STA from driver:%d %pM\n", sta_id, addr);
+
+ if (WARN_ON(sta_id == IL_INVALID_STATION))
+ return -EINVAL;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+
+ if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) {
+ D_INFO("Removing %pM but non DRIVER active\n", addr);
+ goto out_err;
+ }
+
+ if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
+ D_INFO("Removing %pM but non UCODE active\n", addr);
+ goto out_err;
+ }
+
+ if (il->stations[sta_id].used & IL_STA_LOCAL) {
+ kfree(il->stations[sta_id].lq);
+ il->stations[sta_id].lq = NULL;
+ }
+
+ il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
+
+ il->num_stations--;
+
+ BUG_ON(il->num_stations < 0);
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+
+ return il_send_remove_station(il, addr, sta_id, false);
+out_err:
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(il_remove_station);
+
+/**
+ * il_clear_ucode_stations - clear ucode station table bits
+ *
+ * This function clears all the bits in the driver indicating
+ * which stations are active in the ucode. Call when something
+ * other than explicit station management would cause this in
+ * the ucode, e.g. unassociated RXON.
+ */
+void
+il_clear_ucode_stations(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ int i;
+ unsigned long flags_spin;
+ bool cleared = false;
+
+ D_INFO("Clearing ucode stations in driver\n");
+
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (ctx && ctx->ctxid != il->stations[i].ctxid)
+ continue;
+
+ if (il->stations[i].used & IL_STA_UCODE_ACTIVE) {
+ D_INFO("Clearing ucode active for station %d\n", i);
+ il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
+ cleared = true;
+ }
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+
+ if (!cleared)
+ D_INFO("No active stations found to be cleared\n");
+}
+EXPORT_SYMBOL(il_clear_ucode_stations);
+
+/**
+ * il_restore_stations() - Restore driver known stations to device
+ *
+ * All stations considered active by driver, but not present in ucode, is
+ * restored.
+ *
+ * Function sleeps.
+ */
+void
+il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ struct il_addsta_cmd sta_cmd;
+ struct il_link_quality_cmd lq;
+ unsigned long flags_spin;
+ int i;
+ bool found = false;
+ int ret;
+ bool send_lq;
+
+ if (!il_is_ready(il)) {
+ D_INFO("Not ready yet, not restoring any stations.\n");
+ return;
+ }
+
+ D_ASSOC("Restoring all known stations ... start.\n");
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (ctx->ctxid != il->stations[i].ctxid)
+ continue;
+ if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) &&
+ !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) {
+ D_ASSOC("Restoring sta %pM\n",
+ il->stations[i].sta.sta.addr);
+ il->stations[i].sta.mode = 0;
+ il->stations[i].used |= IL_STA_UCODE_INPROGRESS;
+ found = true;
+ }
+ }
+
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) {
+ memcpy(&sta_cmd, &il->stations[i].sta,
+ sizeof(struct il_addsta_cmd));
+ send_lq = false;
+ if (il->stations[i].lq) {
+ memcpy(&lq, il->stations[i].lq,
+ sizeof(struct il_link_quality_cmd));
+ send_lq = true;
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
+ if (ret) {
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ IL_ERR("Adding station %pM failed.\n",
+ il->stations[i].sta.sta.addr);
+ il->stations[i].used &= ~IL_STA_DRIVER_ACTIVE;
+ il->stations[i].used &=
+ ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock,
+ flags_spin);
+ }
+ /*
+ * Rate scaling has already been initialized, send
+ * current LQ command
+ */
+ if (send_lq)
+ il_send_lq_cmd(il, ctx, &lq, CMD_SYNC, true);
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS;
+ }
+ }
+
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ if (!found)
+ D_INFO("Restoring all known stations"
+ " .... no stations to be restored.\n");
+ else
+ D_INFO("Restoring all known stations" " .... complete.\n");
+}
+EXPORT_SYMBOL(il_restore_stations);
+
+int
+il_get_free_ucode_key_idx(struct il_priv *il)
+{
+ int i;
+
+ for (i = 0; i < il->sta_key_max_num; i++)
+ if (!test_and_set_bit(i, &il->ucode_key_table))
+ return i;
+
+ return WEP_INVALID_OFFSET;
+}
+EXPORT_SYMBOL(il_get_free_ucode_key_idx);
+
+void
+il_dealloc_bcast_stations(struct il_priv *il)
+{
+ unsigned long flags;
+ int i;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (!(il->stations[i].used & IL_STA_BCAST))
+ continue;
+
+ il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
+ il->num_stations--;
+ BUG_ON(il->num_stations < 0);
+ kfree(il->stations[i].lq);
+ il->stations[i].lq = NULL;
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+}
+EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+static void
+il_dump_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq)
+{
+ int i;
+ D_RATE("lq station id 0x%x\n", lq->sta_id);
+ D_RATE("lq ant 0x%X 0x%X\n", lq->general_params.single_stream_ant_msk,
+ lq->general_params.dual_stream_ant_msk);
+
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
+ D_RATE("lq idx %d 0x%X\n", i, lq->rs_table[i].rate_n_flags);
+}
+#else
+static inline void
+il_dump_lq_cmd(struct il_priv *il, struct il_link_quality_cmd *lq)
+{
+}
+#endif
+
+/**
+ * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity
+ *
+ * It sometimes happens when a HT rate has been in use and we
+ * loose connectivity with AP then mac80211 will first tell us that the
+ * current channel is not HT anymore before removing the station. In such a
+ * scenario the RXON flags will be updated to indicate we are not
+ * communicating HT anymore, but the LQ command may still contain HT rates.
+ * Test for this to prevent driver from sending LQ command between the time
+ * RXON flags are updated and when LQ command is updated.
+ */
+static bool
+il_is_lq_table_valid(struct il_priv *il, struct il_rxon_context *ctx,
+ struct il_link_quality_cmd *lq)
+{
+ int i;
+
+ if (ctx->ht.enabled)
+ return true;
+
+ D_INFO("Channel %u is not an HT channel\n", ctx->active.channel);
+ for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
+ if (le32_to_cpu(lq->rs_table[i].rate_n_flags) & RATE_MCS_HT_MSK) {
+ D_INFO("idx %d of LQ expects HT channel\n", i);
+ return false;
+ }
+ }
+ return true;
+}
+
+/**
+ * il_send_lq_cmd() - Send link quality command
+ * @init: This command is sent as part of station initialization right
+ * after station has been added.
+ *
+ * The link quality command is sent as the last step of station creation.
+ * This is the special case in which init is set and we call a callback in
+ * this case to clear the state indicating that station creation is in
+ * progress.
+ */
+int
+il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx,
+ struct il_link_quality_cmd *lq, u8 flags, bool init)
+{
+ int ret = 0;
+ unsigned long flags_spin;
+
+ struct il_host_cmd cmd = {
+ .id = C_TX_LINK_QUALITY_CMD,
+ .len = sizeof(struct il_link_quality_cmd),
+ .flags = flags,
+ .data = lq,
+ };
+
+ if (WARN_ON(lq->sta_id == IL_INVALID_STATION))
+ return -EINVAL;
+
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) {
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ return -EINVAL;
+ }
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+
+ il_dump_lq_cmd(il, lq);
+ BUG_ON(init && (cmd.flags & CMD_ASYNC));
+
+ if (il_is_lq_table_valid(il, ctx, lq))
+ ret = il_send_cmd(il, &cmd);
+ else
+ ret = -EINVAL;
+
+ if (cmd.flags & CMD_ASYNC)
+ return ret;
+
+ if (init) {
+ D_INFO("init LQ command complete,"
+ " clearing sta addition status for sta %d\n",
+ lq->sta_id);
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ }
+ return ret;
+}
+EXPORT_SYMBOL(il_send_lq_cmd);
+
+int
+il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta)
+{
+ struct il_priv *il = hw->priv;
+ struct il_station_priv_common *sta_common = (void *)sta->drv_priv;
+ int ret;
+
+ D_INFO("received request to remove station %pM\n", sta->addr);
+ mutex_lock(&il->mutex);
+ D_INFO("proceeding to remove station %pM\n", sta->addr);
+ ret = il_remove_station(il, sta_common->sta_id, sta->addr);
+ if (ret)
+ IL_ERR("Error removing station %pM\n", sta->addr);
+ mutex_unlock(&il->mutex);
+ return ret;
+}
+EXPORT_SYMBOL(il_mac_sta_remove);
+
+/************************** RX-FUNCTIONS ****************************/
+/*
+ * Rx theory of operation
+ *
+ * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
+ * each of which point to Receive Buffers to be filled by the NIC. These get
+ * used not only for Rx frames, but for any command response or notification
+ * from the NIC. The driver and NIC manage the Rx buffers by means
+ * of idxes into the circular buffer.
+ *
+ * Rx Queue Indexes
+ * The host/firmware share two idx registers for managing the Rx buffers.
+ *
+ * The READ idx maps to the first position that the firmware may be writing
+ * to -- the driver can read up to (but not including) this position and get
+ * good data.
+ * The READ idx is managed by the firmware once the card is enabled.
+ *
+ * The WRITE idx maps to the last position the driver has read from -- the
+ * position preceding WRITE is the last slot the firmware can place a packet.
+ *
+ * The queue is empty (no good data) if WRITE = READ - 1, and is full if
+ * WRITE = READ.
+ *
+ * During initialization, the host sets up the READ queue position to the first
+ * IDX position, and WRITE to the last (READ - 1 wrapped)
+ *
+ * When the firmware places a packet in a buffer, it will advance the READ idx
+ * and fire the RX interrupt. The driver can then query the READ idx and
+ * process as many packets as possible, moving the WRITE idx forward as it
+ * resets the Rx queue buffers with new memory.
+ *
+ * The management in the driver is as follows:
+ * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
+ * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
+ * to replenish the iwl->rxq->rx_free.
+ * + In il_rx_replenish (scheduled) if 'processed' != 'read' then the
+ * iwl->rxq is replenished and the READ IDX is updated (updating the
+ * 'processed' and 'read' driver idxes as well)
+ * + A received packet is processed and handed to the kernel network stack,
+ * detached from the iwl->rxq. The driver 'processed' idx is updated.
+ * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
+ * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
+ * IDX is not incremented and iwl->status(RX_STALLED) is set. If there
+ * were enough free buffers and RX_STALLED is set it is cleared.
+ *
+ *
+ * Driver sequence:
+ *
+ * il_rx_queue_alloc() Allocates rx_free
+ * il_rx_replenish() Replenishes rx_free list from rx_used, and calls
+ * il_rx_queue_restock
+ * il_rx_queue_restock() Moves available buffers from rx_free into Rx
+ * queue, updates firmware pointers, and updates
+ * the WRITE idx. If insufficient rx_free buffers
+ * are available, schedules il_rx_replenish
+ *
+ * -- enable interrupts --
+ * ISR - il_rx() Detach il_rx_bufs from pool up to the
+ * READ IDX, detaching the SKB from the pool.
+ * Moves the packet buffer from queue to rx_used.
+ * Calls il_rx_queue_restock to refill any empty
+ * slots.
+ * ...
+ *
+ */
+
+/**
+ * il_rx_queue_space - Return number of free slots available in queue.
+ */
+int
+il_rx_queue_space(const struct il_rx_queue *q)
+{
+ int s = q->read - q->write;
+ if (s <= 0)
+ s += RX_QUEUE_SIZE;
+ /* keep some buffer to not confuse full and empty queue */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+EXPORT_SYMBOL(il_rx_queue_space);
+
+/**
+ * il_rx_queue_update_write_ptr - Update the write pointer for the RX queue
+ */
+void
+il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q)
+{
+ unsigned long flags;
+ u32 rx_wrt_ptr_reg = il->hw_params.rx_wrt_ptr_reg;
+ u32 reg;
+
+ spin_lock_irqsave(&q->lock, flags);
+
+ if (q->need_update == 0)
+ goto exit_unlock;
+
+ /* If power-saving is in use, make sure device is awake */
+ if (test_bit(S_POWER_PMI, &il->status)) {
+ reg = _il_rd(il, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ D_INFO("Rx queue requesting wakeup," " GP1 = 0x%x\n",
+ reg);
+ il_set_bit(il, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ goto exit_unlock;
+ }
+
+ q->write_actual = (q->write & ~0x7);
+ il_wr(il, rx_wrt_ptr_reg, q->write_actual);
+
+ /* Else device is assumed to be awake */
+ } else {
+ /* Device expects a multiple of 8 */
+ q->write_actual = (q->write & ~0x7);
+ il_wr(il, rx_wrt_ptr_reg, q->write_actual);
+ }
+
+ q->need_update = 0;
+
+exit_unlock:
+ spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(il_rx_queue_update_write_ptr);
+
+int
+il_rx_queue_alloc(struct il_priv *il)
+{
+ struct il_rx_queue *rxq = &il->rxq;
+ struct device *dev = &il->pci_dev->dev;
+ int i;
+
+ spin_lock_init(&rxq->lock);
+ INIT_LIST_HEAD(&rxq->rx_free);
+ INIT_LIST_HEAD(&rxq->rx_used);
+
+ /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
+ rxq->bd =
+ dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
+ GFP_KERNEL);
+ if (!rxq->bd)
+ goto err_bd;
+
+ rxq->rb_stts =
+ dma_alloc_coherent(dev, sizeof(struct il_rb_status),
+ &rxq->rb_stts_dma, GFP_KERNEL);
+ if (!rxq->rb_stts)
+ goto err_rb;
+
+ /* Fill the rx_used queue with _all_ of the Rx buffers */
+ for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
+ list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
+
+ /* Set us so that we have processed and used all buffers, but have
+ * not restocked the Rx queue with fresh buffers */
+ rxq->read = rxq->write = 0;
+ rxq->write_actual = 0;
+ rxq->free_count = 0;
+ rxq->need_update = 0;
+ return 0;
+
+err_rb:
+ dma_free_coherent(&il->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
+ rxq->bd_dma);
+err_bd:
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(il_rx_queue_alloc);
+
+void
+il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_spectrum_notification *report = &(pkt->u.spectrum_notif);
+
+ if (!report->state) {
+ D_11H("Spectrum Measure Notification: Start\n");
+ return;
+ }
+
+ memcpy(&il->measure_report, report, sizeof(*report));
+ il->measurement_status |= MEASUREMENT_READY;
+}
+EXPORT_SYMBOL(il_hdl_spectrum_measurement);
+
+/*
+ * returns non-zero if packet should be dropped
+ */
+int
+il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
+ u32 decrypt_res, struct ieee80211_rx_status *stats)
+{
+ u16 fc = le16_to_cpu(hdr->frame_control);
+
+ /*
+ * All contexts have the same setting here due to it being
+ * a module parameter, so OK to check any context.
+ */
+ if (il->ctx.active.filter_flags & RXON_FILTER_DIS_DECRYPT_MSK)
+ return 0;
+
+ if (!(fc & IEEE80211_FCTL_PROTECTED))
+ return 0;
+
+ D_RX("decrypt_res:0x%x\n", decrypt_res);
+ switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
+ case RX_RES_STATUS_SEC_TYPE_TKIP:
+ /* The uCode has got a bad phase 1 Key, pushes the packet.
+ * Decryption will be done in SW. */
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_BAD_KEY_TTAK)
+ break;
+
+ case RX_RES_STATUS_SEC_TYPE_WEP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_BAD_ICV_MIC) {
+ /* bad ICV, the packet is destroyed since the
+ * decryption is inplace, drop it */
+ D_RX("Packet destroyed\n");
+ return -1;
+ }
+ case RX_RES_STATUS_SEC_TYPE_CCMP:
+ if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
+ RX_RES_STATUS_DECRYPT_OK) {
+ D_RX("hw decrypt successfully!!!\n");
+ stats->flag |= RX_FLAG_DECRYPTED;
+ }
+ break;
+
+ default:
+ break;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(il_set_decrypted_flag);
+
+/**
+ * il_txq_update_write_ptr - Send new write idx to hardware
+ */
+void
+il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq)
+{
+ u32 reg = 0;
+ int txq_id = txq->q.id;
+
+ if (txq->need_update == 0)
+ return;
+
+ /* if we're trying to save power */
+ if (test_bit(S_POWER_PMI, &il->status)) {
+ /* wake up nic if it's powered down ...
+ * uCode will wake up, and interrupt us again, so next
+ * time we'll skip this part. */
+ reg = _il_rd(il, CSR_UCODE_DRV_GP1);
+
+ if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
+ D_INFO("Tx queue %d requesting wakeup," " GP1 = 0x%x\n",
+ txq_id, reg);
+ il_set_bit(il, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+ return;
+ }
+
+ il_wr(il, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8));
+
+ /*
+ * else not in power-save mode,
+ * uCode will never sleep when we're
+ * trying to tx (during RFKILL, we're not trying to tx).
+ */
+ } else
+ _il_wr(il, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8));
+ txq->need_update = 0;
+}
+EXPORT_SYMBOL(il_txq_update_write_ptr);
+
+/**
+ * il_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's
+ */
+void
+il_tx_queue_unmap(struct il_priv *il, int txq_id)
+{
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct il_queue *q = &txq->q;
+
+ if (q->n_bd == 0)
+ return;
+
+ while (q->write_ptr != q->read_ptr) {
+ il->cfg->ops->lib->txq_free_tfd(il, txq);
+ q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd);
+ }
+}
+EXPORT_SYMBOL(il_tx_queue_unmap);
+
+/**
+ * il_tx_queue_free - Deallocate DMA queue.
+ * @txq: Transmit queue to deallocate.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.
+ * 0-fill, but do not free "txq" descriptor structure.
+ */
+void
+il_tx_queue_free(struct il_priv *il, int txq_id)
+{
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct device *dev = &il->pci_dev->dev;
+ int i;
+
+ il_tx_queue_unmap(il, txq_id);
+
+ /* De-alloc array of command/tx buffers */
+ for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
+ kfree(txq->cmd[i]);
+
+ /* De-alloc circular buffer of TFDs */
+ if (txq->q.n_bd)
+ dma_free_coherent(dev, il->hw_params.tfd_size * txq->q.n_bd,
+ txq->tfds, txq->q.dma_addr);
+
+ /* De-alloc array of per-TFD driver data */
+ kfree(txq->txb);
+ txq->txb = NULL;
+
+ /* deallocate arrays */
+ kfree(txq->cmd);
+ kfree(txq->meta);
+ txq->cmd = NULL;
+ txq->meta = NULL;
+
+ /* 0-fill queue descriptor structure */
+ memset(txq, 0, sizeof(*txq));
+}
+EXPORT_SYMBOL(il_tx_queue_free);
+
+/**
+ * il_cmd_queue_unmap - Unmap any remaining DMA mappings from command queue
+ */
+void
+il_cmd_queue_unmap(struct il_priv *il)
+{
+ struct il_tx_queue *txq = &il->txq[il->cmd_queue];
+ struct il_queue *q = &txq->q;
+ int i;
+
+ if (q->n_bd == 0)
+ return;
+
+ while (q->read_ptr != q->write_ptr) {
+ i = il_get_cmd_idx(q, q->read_ptr, 0);
+
+ if (txq->meta[i].flags & CMD_MAPPED) {
+ pci_unmap_single(il->pci_dev,
+ dma_unmap_addr(&txq->meta[i], mapping),
+ dma_unmap_len(&txq->meta[i], len),
+ PCI_DMA_BIDIRECTIONAL);
+ txq->meta[i].flags = 0;
+ }
+
+ q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd);
+ }
+
+ i = q->n_win;
+ if (txq->meta[i].flags & CMD_MAPPED) {
+ pci_unmap_single(il->pci_dev,
+ dma_unmap_addr(&txq->meta[i], mapping),
+ dma_unmap_len(&txq->meta[i], len),
+ PCI_DMA_BIDIRECTIONAL);
+ txq->meta[i].flags = 0;
+ }
+}
+EXPORT_SYMBOL(il_cmd_queue_unmap);
+
+/**
+ * il_cmd_queue_free - Deallocate DMA queue.
+ * @txq: Transmit queue to deallocate.
+ *
+ * Empty queue by removing and destroying all BD's.
+ * Free all buffers.
+ * 0-fill, but do not free "txq" descriptor structure.
+ */
+void
+il_cmd_queue_free(struct il_priv *il)
+{
+ struct il_tx_queue *txq = &il->txq[il->cmd_queue];
+ struct device *dev = &il->pci_dev->dev;
+ int i;
+
+ il_cmd_queue_unmap(il);
+
+ /* De-alloc array of command/tx buffers */
+ for (i = 0; i <= TFD_CMD_SLOTS; i++)
+ kfree(txq->cmd[i]);
+
+ /* De-alloc circular buffer of TFDs */
+ if (txq->q.n_bd)
+ dma_free_coherent(dev, il->hw_params.tfd_size * txq->q.n_bd,
+ txq->tfds, txq->q.dma_addr);
+
+ /* deallocate arrays */
+ kfree(txq->cmd);
+ kfree(txq->meta);
+ txq->cmd = NULL;
+ txq->meta = NULL;
+
+ /* 0-fill queue descriptor structure */
+ memset(txq, 0, sizeof(*txq));
+}
+EXPORT_SYMBOL(il_cmd_queue_free);
+
+/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
+ * DMA services
+ *
+ * Theory of operation
+ *
+ * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
+ * of buffer descriptors, each of which points to one or more data buffers for
+ * the device to read from or fill. Driver and device exchange status of each
+ * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
+ * entries in each circular buffer, to protect against confusing empty and full
+ * queue states.
+ *
+ * The device reads or writes the data in the queues via the device's several
+ * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
+ *
+ * For Tx queue, there are low mark and high mark limits. If, after queuing
+ * the packet for Tx, free space become < low mark, Tx queue stopped. When
+ * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
+ * Tx queue resumed.
+ *
+ * See more detailed info in 4965.h.
+ ***************************************************/
+
+int
+il_queue_space(const struct il_queue *q)
+{
+ int s = q->read_ptr - q->write_ptr;
+
+ if (q->read_ptr > q->write_ptr)
+ s -= q->n_bd;
+
+ if (s <= 0)
+ s += q->n_win;
+ /* keep some reserve to not confuse empty and full situations */
+ s -= 2;
+ if (s < 0)
+ s = 0;
+ return s;
+}
+EXPORT_SYMBOL(il_queue_space);
+
+
+/**
+ * il_queue_init - Initialize queue's high/low-water and read/write idxes
+ */
+static int
+il_queue_init(struct il_priv *il, struct il_queue *q, int count, int slots_num,
+ u32 id)
+{
+ q->n_bd = count;
+ q->n_win = slots_num;
+ q->id = id;
+
+ /* count must be power-of-two size, otherwise il_queue_inc_wrap
+ * and il_queue_dec_wrap are broken. */
+ BUG_ON(!is_power_of_2(count));
+
+ /* slots_num must be power-of-two size, otherwise
+ * il_get_cmd_idx is broken. */
+ BUG_ON(!is_power_of_2(slots_num));
+
+ q->low_mark = q->n_win / 4;
+ if (q->low_mark < 4)
+ q->low_mark = 4;
+
+ q->high_mark = q->n_win / 8;
+ if (q->high_mark < 2)
+ q->high_mark = 2;
+
+ q->write_ptr = q->read_ptr = 0;
+
+ return 0;
+}
+
+/**
+ * il_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
+ */
+static int
+il_tx_queue_alloc(struct il_priv *il, struct il_tx_queue *txq, u32 id)
+{
+ struct device *dev = &il->pci_dev->dev;
+ size_t tfd_sz = il->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
+
+ /* Driver ilate data, only for Tx (not command) queues,
+ * not shared with device. */
+ if (id != il->cmd_queue) {
+ txq->txb =
+ kzalloc(sizeof(txq->txb[0]) * TFD_QUEUE_SIZE_MAX,
+ GFP_KERNEL);
+ if (!txq->txb) {
+ IL_ERR("kmalloc for auxiliary BD "
+ "structures failed\n");
+ goto error;
+ }
+ } else {
+ txq->txb = NULL;
+ }
+
+ /* Circular buffer of transmit frame descriptors (TFDs),
+ * shared with device */
+ txq->tfds =
+ dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr, GFP_KERNEL);
+ if (!txq->tfds) {
+ IL_ERR("pci_alloc_consistent(%zd) failed\n", tfd_sz);
+ goto error;
+ }
+ txq->q.id = id;
+
+ return 0;
+
+error:
+ kfree(txq->txb);
+ txq->txb = NULL;
+
+ return -ENOMEM;
+}
+
+/**
+ * il_tx_queue_init - Allocate and initialize one tx/cmd queue
+ */
+int
+il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num,
+ u32 txq_id)
+{
+ int i, len;
+ int ret;
+ int actual_slots = slots_num;
+
+ /*
+ * Alloc buffer array for commands (Tx or other types of commands).
+ * For the command queue (#4/#9), allocate command space + one big
+ * command for scan, since scan command is very huge; the system will
+ * not have two scans at the same time, so only one is needed.
+ * For normal Tx queues (all other queues), no super-size command
+ * space is needed.
+ */
+ if (txq_id == il->cmd_queue)
+ actual_slots++;
+
+ txq->meta =
+ kzalloc(sizeof(struct il_cmd_meta) * actual_slots, GFP_KERNEL);
+ txq->cmd =
+ kzalloc(sizeof(struct il_device_cmd *) * actual_slots, GFP_KERNEL);
+
+ if (!txq->meta || !txq->cmd)
+ goto out_free_arrays;
+
+ len = sizeof(struct il_device_cmd);
+ for (i = 0; i < actual_slots; i++) {
+ /* only happens for cmd queue */
+ if (i == slots_num)
+ len = IL_MAX_CMD_SIZE;
+
+ txq->cmd[i] = kmalloc(len, GFP_KERNEL);
+ if (!txq->cmd[i])
+ goto err;
+ }
+
+ /* Alloc driver data array and TFD circular buffer */
+ ret = il_tx_queue_alloc(il, txq, txq_id);
+ if (ret)
+ goto err;
+
+ txq->need_update = 0;
+
+ /*
+ * For the default queues 0-3, set up the swq_id
+ * already -- all others need to get one later
+ * (if they need one at all).
+ */
+ if (txq_id < 4)
+ il_set_swq_id(txq, txq_id, txq_id);
+
+ /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
+ * il_queue_inc_wrap and il_queue_dec_wrap are broken. */
+ BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
+
+ /* Initialize queue's high/low-water marks, and head/tail idxes */
+ il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+ /* Tell device where to find queue */
+ il->cfg->ops->lib->txq_init(il, txq);
+
+ return 0;
+err:
+ for (i = 0; i < actual_slots; i++)
+ kfree(txq->cmd[i]);
+out_free_arrays:
+ kfree(txq->meta);
+ kfree(txq->cmd);
+
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(il_tx_queue_init);
+
+void
+il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq, int slots_num,
+ u32 txq_id)
+{
+ int actual_slots = slots_num;
+
+ if (txq_id == il->cmd_queue)
+ actual_slots++;
+
+ memset(txq->meta, 0, sizeof(struct il_cmd_meta) * actual_slots);
+
+ txq->need_update = 0;
+
+ /* Initialize queue's high/low-water marks, and head/tail idxes */
+ il_queue_init(il, &txq->q, TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
+
+ /* Tell device where to find queue */
+ il->cfg->ops->lib->txq_init(il, txq);
+}
+EXPORT_SYMBOL(il_tx_queue_reset);
+
+/*************** HOST COMMAND QUEUE FUNCTIONS *****/
+
+/**
+ * il_enqueue_hcmd - enqueue a uCode command
+ * @il: device ilate data point
+ * @cmd: a point to the ucode command structure
+ *
+ * The function returns < 0 values to indicate the operation is
+ * failed. On success, it turns the idx (> 0) of command in the
+ * command queue.
+ */
+int
+il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd)
+{
+ struct il_tx_queue *txq = &il->txq[il->cmd_queue];
+ struct il_queue *q = &txq->q;
+ struct il_device_cmd *out_cmd;
+ struct il_cmd_meta *out_meta;
+ dma_addr_t phys_addr;
+ unsigned long flags;
+ int len;
+ u32 idx;
+ u16 fix_size;
+
+ cmd->len = il->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len);
+ fix_size = (u16) (cmd->len + sizeof(out_cmd->hdr));
+
+ /* If any of the command structures end up being larger than
+ * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
+ * we will need to increase the size of the TFD entries
+ * Also, check to see if command buffer should not exceed the size
+ * of device_cmd and max_cmd_size. */
+ BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
+ !(cmd->flags & CMD_SIZE_HUGE));
+ BUG_ON(fix_size > IL_MAX_CMD_SIZE);
+
+ if (il_is_rfkill(il) || il_is_ctkill(il)) {
+ IL_WARN("Not sending command - %s KILL\n",
+ il_is_rfkill(il) ? "RF" : "CT");
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&il->hcmd_lock, flags);
+
+ if (il_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
+ spin_unlock_irqrestore(&il->hcmd_lock, flags);
+
+ IL_ERR("Restarting adapter due to command queue full\n");
+ queue_work(il->workqueue, &il->restart);
+ return -ENOSPC;
+ }
+
+ idx = il_get_cmd_idx(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
+ out_cmd = txq->cmd[idx];
+ out_meta = &txq->meta[idx];
+
+ if (WARN_ON(out_meta->flags & CMD_MAPPED)) {
+ spin_unlock_irqrestore(&il->hcmd_lock, flags);
+ return -ENOSPC;
+ }
+
+ memset(out_meta, 0, sizeof(*out_meta)); /* re-initialize to NULL */
+ out_meta->flags = cmd->flags | CMD_MAPPED;
+ if (cmd->flags & CMD_WANT_SKB)
+ out_meta->source = cmd;
+ if (cmd->flags & CMD_ASYNC)
+ out_meta->callback = cmd->callback;
+
+ out_cmd->hdr.cmd = cmd->id;
+ memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
+
+ /* At this point, the out_cmd now has all of the incoming cmd
+ * information */
+
+ out_cmd->hdr.flags = 0;
+ out_cmd->hdr.sequence =
+ cpu_to_le16(QUEUE_TO_SEQ(il->cmd_queue) | IDX_TO_SEQ(q->write_ptr));
+ if (cmd->flags & CMD_SIZE_HUGE)
+ out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
+ len = sizeof(struct il_device_cmd);
+ if (idx == TFD_CMD_SLOTS)
+ len = IL_MAX_CMD_SIZE;
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ switch (out_cmd->hdr.cmd) {
+ case C_TX_LINK_QUALITY_CMD:
+ case C_SENSITIVITY:
+ D_HC_DUMP("Sending command %s (#%x), seq: 0x%04X, "
+ "%d bytes at %d[%d]:%d\n",
+ il_get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd,
+ le16_to_cpu(out_cmd->hdr.sequence), fix_size,
+ q->write_ptr, idx, il->cmd_queue);
+ break;
+ default:
+ D_HC("Sending command %s (#%x), seq: 0x%04X, "
+ "%d bytes at %d[%d]:%d\n",
+ il_get_cmd_string(out_cmd->hdr.cmd), out_cmd->hdr.cmd,
+ le16_to_cpu(out_cmd->hdr.sequence), fix_size, q->write_ptr,
+ idx, il->cmd_queue);
+ }
+#endif
+ txq->need_update = 1;
+
+ if (il->cfg->ops->lib->txq_update_byte_cnt_tbl)
+ /* Set up entry in queue's byte count circular buffer */
+ il->cfg->ops->lib->txq_update_byte_cnt_tbl(il, txq, 0);
+
+ phys_addr =
+ pci_map_single(il->pci_dev, &out_cmd->hdr, fix_size,
+ PCI_DMA_BIDIRECTIONAL);
+ dma_unmap_addr_set(out_meta, mapping, phys_addr);
+ dma_unmap_len_set(out_meta, len, fix_size);
+
+ il->cfg->ops->lib->txq_attach_buf_to_tfd(il, txq, phys_addr, fix_size,
+ 1, U32_PAD(cmd->len));
+
+ /* Increment and update queue's write idx */
+ q->write_ptr = il_queue_inc_wrap(q->write_ptr, q->n_bd);
+ il_txq_update_write_ptr(il, txq);
+
+ spin_unlock_irqrestore(&il->hcmd_lock, flags);
+ return idx;
+}
+
+/**
+ * il_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd
+ *
+ * When FW advances 'R' idx, all entries between old and new 'R' idx
+ * need to be reclaimed. As result, some free space forms. If there is
+ * enough free space (> low mark), wake the stack that feeds us.
+ */
+static void
+il_hcmd_queue_reclaim(struct il_priv *il, int txq_id, int idx, int cmd_idx)
+{
+ struct il_tx_queue *txq = &il->txq[txq_id];
+ struct il_queue *q = &txq->q;
+ int nfreed = 0;
+
+ if (idx >= q->n_bd || il_queue_used(q, idx) == 0) {
+ IL_ERR("Read idx for DMA queue txq id (%d), idx %d, "
+ "is out of range [0-%d] %d %d.\n", txq_id, idx, q->n_bd,
+ q->write_ptr, q->read_ptr);
+ return;
+ }
+
+ for (idx = il_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
+ q->read_ptr = il_queue_inc_wrap(q->read_ptr, q->n_bd)) {
+
+ if (nfreed++ > 0) {
+ IL_ERR("HCMD skipped: idx (%d) %d %d\n", idx,
+ q->write_ptr, q->read_ptr);
+ queue_work(il->workqueue, &il->restart);
+ }
+
+ }
+}
+
+/**
+ * il_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
+ * @rxb: Rx buffer to reclaim
+ *
+ * If an Rx buffer has an async callback associated with it the callback
+ * will be executed. The attached skb (if present) will only be freed
+ * if the callback returns 1
+ */
+void
+il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u16 sequence = le16_to_cpu(pkt->hdr.sequence);
+ int txq_id = SEQ_TO_QUEUE(sequence);
+ int idx = SEQ_TO_IDX(sequence);
+ int cmd_idx;
+ bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
+ struct il_device_cmd *cmd;
+ struct il_cmd_meta *meta;
+ struct il_tx_queue *txq = &il->txq[il->cmd_queue];
+ unsigned long flags;
+
+ /* If a Tx command is being handled and it isn't in the actual
+ * command queue then there a command routing bug has been introduced
+ * in the queue management code. */
+ if (WARN
+ (txq_id != il->cmd_queue,
+ "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n",
+ txq_id, il->cmd_queue, sequence, il->txq[il->cmd_queue].q.read_ptr,
+ il->txq[il->cmd_queue].q.write_ptr)) {
+ il_print_hex_error(il, pkt, 32);
+ return;
+ }
+
+ cmd_idx = il_get_cmd_idx(&txq->q, idx, huge);
+ cmd = txq->cmd[cmd_idx];
+ meta = &txq->meta[cmd_idx];
+
+ txq->time_stamp = jiffies;
+
+ pci_unmap_single(il->pci_dev, dma_unmap_addr(meta, mapping),
+ dma_unmap_len(meta, len), PCI_DMA_BIDIRECTIONAL);
+
+ /* Input error checking is done when commands are added to queue. */
+ if (meta->flags & CMD_WANT_SKB) {
+ meta->source->reply_page = (unsigned long)rxb_addr(rxb);
+ rxb->page = NULL;
+ } else if (meta->callback)
+ meta->callback(il, cmd, pkt);
+
+ spin_lock_irqsave(&il->hcmd_lock, flags);
+
+ il_hcmd_queue_reclaim(il, txq_id, idx, cmd_idx);
+
+ if (!(meta->flags & CMD_ASYNC)) {
+ clear_bit(S_HCMD_ACTIVE, &il->status);
+ D_INFO("Clearing HCMD_ACTIVE for command %s\n",
+ il_get_cmd_string(cmd->hdr.cmd));
+ wake_up(&il->wait_command_queue);
+ }
+
+ /* Mark as unmapped */
+ meta->flags = 0;
+
+ spin_unlock_irqrestore(&il->hcmd_lock, flags);
+}
+EXPORT_SYMBOL(il_tx_cmd_complete);
+
+MODULE_DESCRIPTION("iwl-legacy: common functions for 3945 and 4965");
+MODULE_VERSION(IWLWIFI_VERSION);
+MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
+MODULE_LICENSE("GPL");
+
+/*
+ * set bt_coex_active to true, uCode will do kill/defer
+ * every time the priority line is asserted (BT is sending signals on the
+ * priority line in the PCIx).
+ * set bt_coex_active to false, uCode will ignore the BT activity and
+ * perform the normal operation
+ *
+ * User might experience transmit issue on some platform due to WiFi/BT
+ * co-exist problem. The possible behaviors are:
+ * Able to scan and finding all the available AP
+ * Not able to associate with any AP
+ * On those platforms, WiFi communication can be restored by set
+ * "bt_coex_active" module parameter to "false"
+ *
+ * default: bt_coex_active = true (BT_COEX_ENABLE)
+ */
+static bool bt_coex_active = true;
+module_param(bt_coex_active, bool, S_IRUGO);
+MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
+
+u32 il_debug_level;
+EXPORT_SYMBOL(il_debug_level);
+
+const u8 il_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
+EXPORT_SYMBOL(il_bcast_addr);
+
+/* This function both allocates and initializes hw and il. */
+struct ieee80211_hw *
+il_alloc_all(struct il_cfg *cfg)
+{
+ struct il_priv *il;
+ /* mac80211 allocates memory for this device instance, including
+ * space for this driver's ilate structure */
+ struct ieee80211_hw *hw;
+
+ hw = ieee80211_alloc_hw(sizeof(struct il_priv),
+ cfg->ops->ieee80211_ops);
+ if (hw == NULL) {
+ pr_err("%s: Can not allocate network device\n", cfg->name);
+ goto out;
+ }
+
+ il = hw->priv;
+ il->hw = hw;
+
+out:
+ return hw;
+}
+EXPORT_SYMBOL(il_alloc_all);
+
+#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
+#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
+static void
+il_init_ht_hw_capab(const struct il_priv *il,
+ struct ieee80211_sta_ht_cap *ht_info,
+ enum ieee80211_band band)
+{
+ u16 max_bit_rate = 0;
+ u8 rx_chains_num = il->hw_params.rx_chains_num;
+ u8 tx_chains_num = il->hw_params.tx_chains_num;
+
+ ht_info->cap = 0;
+ memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
+
+ ht_info->ht_supported = true;
+
+ ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
+ max_bit_rate = MAX_BIT_RATE_20_MHZ;
+ if (il->hw_params.ht40_channel & BIT(band)) {
+ ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
+ ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
+ ht_info->mcs.rx_mask[4] = 0x01;
+ max_bit_rate = MAX_BIT_RATE_40_MHZ;
+ }
+
+ if (il->cfg->mod_params->amsdu_size_8K)
+ ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
+
+ ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
+ ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
+
+ ht_info->mcs.rx_mask[0] = 0xFF;
+ if (rx_chains_num >= 2)
+ ht_info->mcs.rx_mask[1] = 0xFF;
+ if (rx_chains_num >= 3)
+ ht_info->mcs.rx_mask[2] = 0xFF;
+
+ /* Highest supported Rx data rate */
+ max_bit_rate *= rx_chains_num;
+ WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
+ ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
+
+ /* Tx MCS capabilities */
+ ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
+ if (tx_chains_num != rx_chains_num) {
+ ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
+ ht_info->mcs.tx_params |=
+ ((tx_chains_num -
+ 1) << IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
+ }
+}
+
+/**
+ * il_init_geos - Initialize mac80211's geo/channel info based from eeprom
+ */
+int
+il_init_geos(struct il_priv *il)
+{
+ struct il_channel_info *ch;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_channel *channels;
+ struct ieee80211_channel *geo_ch;
+ struct ieee80211_rate *rates;
+ int i = 0;
+ s8 max_tx_power = 0;
+
+ if (il->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
+ il->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
+ D_INFO("Geography modes already initialized.\n");
+ set_bit(S_GEO_CONFIGURED, &il->status);
+ return 0;
+ }
+
+ channels =
+ kzalloc(sizeof(struct ieee80211_channel) * il->channel_count,
+ GFP_KERNEL);
+ if (!channels)
+ return -ENOMEM;
+
+ rates =
+ kzalloc((sizeof(struct ieee80211_rate) * RATE_COUNT_LEGACY),
+ GFP_KERNEL);
+ if (!rates) {
+ kfree(channels);
+ return -ENOMEM;
+ }
+
+ /* 5.2GHz channels start after the 2.4GHz channels */
+ sband = &il->bands[IEEE80211_BAND_5GHZ];
+ sband->channels = &channels[ARRAY_SIZE(il_eeprom_band_1)];
+ /* just OFDM */
+ sband->bitrates = &rates[IL_FIRST_OFDM_RATE];
+ sband->n_bitrates = RATE_COUNT_LEGACY - IL_FIRST_OFDM_RATE;
+
+ if (il->cfg->sku & IL_SKU_N)
+ il_init_ht_hw_capab(il, &sband->ht_cap, IEEE80211_BAND_5GHZ);
+
+ sband = &il->bands[IEEE80211_BAND_2GHZ];
+ sband->channels = channels;
+ /* OFDM & CCK */
+ sband->bitrates = rates;
+ sband->n_bitrates = RATE_COUNT_LEGACY;
+
+ if (il->cfg->sku & IL_SKU_N)
+ il_init_ht_hw_capab(il, &sband->ht_cap, IEEE80211_BAND_2GHZ);
+
+ il->ieee_channels = channels;
+ il->ieee_rates = rates;
+
+ for (i = 0; i < il->channel_count; i++) {
+ ch = &il->channel_info[i];
+
+ if (!il_is_channel_valid(ch))
+ continue;
+
+ sband = &il->bands[ch->band];
+
+ geo_ch = &sband->channels[sband->n_channels++];
+
+ geo_ch->center_freq =
+ ieee80211_channel_to_frequency(ch->channel, ch->band);
+ geo_ch->max_power = ch->max_power_avg;
+ geo_ch->max_antenna_gain = 0xff;
+ geo_ch->hw_value = ch->channel;
+
+ if (il_is_channel_valid(ch)) {
+ if (!(ch->flags & EEPROM_CHANNEL_IBSS))
+ geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
+
+ if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
+ geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
+
+ if (ch->flags & EEPROM_CHANNEL_RADAR)
+ geo_ch->flags |= IEEE80211_CHAN_RADAR;
+
+ geo_ch->flags |= ch->ht40_extension_channel;
+
+ if (ch->max_power_avg > max_tx_power)
+ max_tx_power = ch->max_power_avg;
+ } else {
+ geo_ch->flags |= IEEE80211_CHAN_DISABLED;
+ }
+
+ D_INFO("Channel %d Freq=%d[%sGHz] %s flag=0x%X\n", ch->channel,
+ geo_ch->center_freq,
+ il_is_channel_a_band(ch) ? "5.2" : "2.4",
+ geo_ch->
+ flags & IEEE80211_CHAN_DISABLED ? "restricted" : "valid",
+ geo_ch->flags);
+ }
+
+ il->tx_power_device_lmt = max_tx_power;
+ il->tx_power_user_lmt = max_tx_power;
+ il->tx_power_next = max_tx_power;
+
+ if (il->bands[IEEE80211_BAND_5GHZ].n_channels == 0 &&
+ (il->cfg->sku & IL_SKU_A)) {
+ IL_INFO("Incorrectly detected BG card as ABG. "
+ "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
+ il->pci_dev->device, il->pci_dev->subsystem_device);
+ il->cfg->sku &= ~IL_SKU_A;
+ }
+
+ IL_INFO("Tunable channels: %d 802.11bg, %d 802.11a channels\n",
+ il->bands[IEEE80211_BAND_2GHZ].n_channels,
+ il->bands[IEEE80211_BAND_5GHZ].n_channels);
+
+ set_bit(S_GEO_CONFIGURED, &il->status);
+
+ return 0;
+}
+EXPORT_SYMBOL(il_init_geos);
+
+/*
+ * il_free_geos - undo allocations in il_init_geos
+ */
+void
+il_free_geos(struct il_priv *il)
+{
+ kfree(il->ieee_channels);
+ kfree(il->ieee_rates);
+ clear_bit(S_GEO_CONFIGURED, &il->status);
+}
+EXPORT_SYMBOL(il_free_geos);
+
+static bool
+il_is_channel_extension(struct il_priv *il, enum ieee80211_band band,
+ u16 channel, u8 extension_chan_offset)
+{
+ const struct il_channel_info *ch_info;
+
+ ch_info = il_get_channel_info(il, band, channel);
+ if (!il_is_channel_valid(ch_info))
+ return false;
+
+ if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
+ return !(ch_info->
+ ht40_extension_channel & IEEE80211_CHAN_NO_HT40PLUS);
+ else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
+ return !(ch_info->
+ ht40_extension_channel & IEEE80211_CHAN_NO_HT40MINUS);
+
+ return false;
+}
+
+bool
+il_is_ht40_tx_allowed(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_sta_ht_cap *ht_cap)
+{
+ if (!ctx->ht.enabled || !ctx->ht.is_40mhz)
+ return false;
+
+ /*
+ * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
+ * the bit will not set if it is pure 40MHz case
+ */
+ if (ht_cap && !ht_cap->ht_supported)
+ return false;
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ if (il->disable_ht40)
+ return false;
+#endif
+
+ return il_is_channel_extension(il, il->band,
+ le16_to_cpu(ctx->staging.channel),
+ ctx->ht.extension_chan_offset);
+}
+EXPORT_SYMBOL(il_is_ht40_tx_allowed);
+
+static u16
+il_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
+{
+ u16 new_val;
+ u16 beacon_factor;
+
+ /*
+ * If mac80211 hasn't given us a beacon interval, program
+ * the default into the device.
+ */
+ if (!beacon_val)
+ return DEFAULT_BEACON_INTERVAL;
+
+ /*
+ * If the beacon interval we obtained from the peer
+ * is too large, we'll have to wake up more often
+ * (and in IBSS case, we'll beacon too much)
+ *
+ * For example, if max_beacon_val is 4096, and the
+ * requested beacon interval is 7000, we'll have to
+ * use 3500 to be able to wake up on the beacons.
+ *
+ * This could badly influence beacon detection stats.
+ */
+
+ beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
+ new_val = beacon_val / beacon_factor;
+
+ if (!new_val)
+ new_val = max_beacon_val;
+
+ return new_val;
+}
+
+int
+il_send_rxon_timing(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ u64 tsf;
+ s32 interval_tm, rem;
+ struct ieee80211_conf *conf = NULL;
+ u16 beacon_int;
+ struct ieee80211_vif *vif = ctx->vif;
+
+ conf = &il->hw->conf;
+
+ lockdep_assert_held(&il->mutex);
+
+ memset(&ctx->timing, 0, sizeof(struct il_rxon_time_cmd));
+
+ ctx->timing.timestamp = cpu_to_le64(il->timestamp);
+ ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);
+
+ beacon_int = vif ? vif->bss_conf.beacon_int : 0;
+
+ /*
+ * TODO: For IBSS we need to get atim_win from mac80211,
+ * for now just always use 0
+ */
+ ctx->timing.atim_win = 0;
+
+ beacon_int =
+ il_adjust_beacon_interval(beacon_int,
+ il->hw_params.max_beacon_itrvl *
+ TIME_UNIT);
+ ctx->timing.beacon_interval = cpu_to_le16(beacon_int);
+
+ tsf = il->timestamp; /* tsf is modifed by do_div: copy it */
+ interval_tm = beacon_int * TIME_UNIT;
+ rem = do_div(tsf, interval_tm);
+ ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
+
+ ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ? : 1) : 1;
+
+ D_ASSOC("beacon interval %d beacon timer %d beacon tim %d\n",
+ le16_to_cpu(ctx->timing.beacon_interval),
+ le32_to_cpu(ctx->timing.beacon_init_val),
+ le16_to_cpu(ctx->timing.atim_win));
+
+ return il_send_cmd_pdu(il, ctx->rxon_timing_cmd, sizeof(ctx->timing),
+ &ctx->timing);
+}
+EXPORT_SYMBOL(il_send_rxon_timing);
+
+void
+il_set_rxon_hwcrypto(struct il_priv *il, struct il_rxon_context *ctx,
+ int hw_decrypt)
+{
+ struct il_rxon_cmd *rxon = &ctx->staging;
+
+ if (hw_decrypt)
+ rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
+ else
+ rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
+
+}
+EXPORT_SYMBOL(il_set_rxon_hwcrypto);
+
+/* validate RXON structure is valid */
+int
+il_check_rxon_cmd(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ struct il_rxon_cmd *rxon = &ctx->staging;
+ bool error = false;
+
+ if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
+ if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) {
+ IL_WARN("check 2.4G: wrong narrow\n");
+ error = true;
+ }
+ if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) {
+ IL_WARN("check 2.4G: wrong radar\n");
+ error = true;
+ }
+ } else {
+ if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) {
+ IL_WARN("check 5.2G: not short slot!\n");
+ error = true;
+ }
+ if (rxon->flags & RXON_FLG_CCK_MSK) {
+ IL_WARN("check 5.2G: CCK!\n");
+ error = true;
+ }
+ }
+ if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) {
+ IL_WARN("mac/bssid mcast!\n");
+ error = true;
+ }
+
+ /* make sure basic rates 6Mbps and 1Mbps are supported */
+ if ((rxon->ofdm_basic_rates & RATE_6M_MASK) == 0 &&
+ (rxon->cck_basic_rates & RATE_1M_MASK) == 0) {
+ IL_WARN("neither 1 nor 6 are basic\n");
+ error = true;
+ }
+
+ if (le16_to_cpu(rxon->assoc_id) > 2007) {
+ IL_WARN("aid > 2007\n");
+ error = true;
+ }
+
+ if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) ==
+ (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) {
+ IL_WARN("CCK and short slot\n");
+ error = true;
+ }
+
+ if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) ==
+ (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) {
+ IL_WARN("CCK and auto detect");
+ error = true;
+ }
+
+ if ((rxon->
+ flags & (RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK)) ==
+ RXON_FLG_TGG_PROTECT_MSK) {
+ IL_WARN("TGg but no auto-detect\n");
+ error = true;
+ }
+
+ if (error)
+ IL_WARN("Tuning to channel %d\n", le16_to_cpu(rxon->channel));
+
+ if (error) {
+ IL_ERR("Invalid RXON\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(il_check_rxon_cmd);
+
+/**
+ * il_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
+ * @il: staging_rxon is compared to active_rxon
+ *
+ * If the RXON structure is changing enough to require a new tune,
+ * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
+ * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
+ */
+int
+il_full_rxon_required(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ const struct il_rxon_cmd *staging = &ctx->staging;
+ const struct il_rxon_cmd *active = &ctx->active;
+
+#define CHK(cond) \
+ if ((cond)) { \
+ D_INFO("need full RXON - " #cond "\n"); \
+ return 1; \
+ }
+
+#define CHK_NEQ(c1, c2) \
+ if ((c1) != (c2)) { \
+ D_INFO("need full RXON - " \
+ #c1 " != " #c2 " - %d != %d\n", \
+ (c1), (c2)); \
+ return 1; \
+ }
+
+ /* These items are only settable from the full RXON command */
+ CHK(!il_is_associated_ctx(ctx));
+ CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr));
+ CHK(compare_ether_addr(staging->node_addr, active->node_addr));
+ CHK(compare_ether_addr
+ (staging->wlap_bssid_addr, active->wlap_bssid_addr));
+ CHK_NEQ(staging->dev_type, active->dev_type);
+ CHK_NEQ(staging->channel, active->channel);
+ CHK_NEQ(staging->air_propagation, active->air_propagation);
+ CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates,
+ active->ofdm_ht_single_stream_basic_rates);
+ CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates,
+ active->ofdm_ht_dual_stream_basic_rates);
+ CHK_NEQ(staging->assoc_id, active->assoc_id);
+
+ /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
+ * be updated with the RXON_ASSOC command -- however only some
+ * flag transitions are allowed using RXON_ASSOC */
+
+ /* Check if we are not switching bands */
+ CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK,
+ active->flags & RXON_FLG_BAND_24G_MSK);
+
+ /* Check if we are switching association toggle */
+ CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK,
+ active->filter_flags & RXON_FILTER_ASSOC_MSK);
+
+#undef CHK
+#undef CHK_NEQ
+
+ return 0;
+}
+EXPORT_SYMBOL(il_full_rxon_required);
+
+u8
+il_get_lowest_plcp(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ /*
+ * Assign the lowest rate -- should really get this from
+ * the beacon skb from mac80211.
+ */
+ if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK)
+ return RATE_1M_PLCP;
+ else
+ return RATE_6M_PLCP;
+}
+EXPORT_SYMBOL(il_get_lowest_plcp);
+
+static void
+_il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf,
+ struct il_rxon_context *ctx)
+{
+ struct il_rxon_cmd *rxon = &ctx->staging;
+
+ if (!ctx->ht.enabled) {
+ rxon->flags &=
+ ~(RXON_FLG_CHANNEL_MODE_MSK |
+ RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK | RXON_FLG_HT40_PROT_MSK
+ | RXON_FLG_HT_PROT_MSK);
+ return;
+ }
+
+ rxon->flags |=
+ cpu_to_le32(ctx->ht.protection << RXON_FLG_HT_OPERATING_MODE_POS);
+
+ /* Set up channel bandwidth:
+ * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
+ /* clear the HT channel mode before set the mode */
+ rxon->flags &=
+ ~(RXON_FLG_CHANNEL_MODE_MSK | RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
+ if (il_is_ht40_tx_allowed(il, ctx, NULL)) {
+ /* pure ht40 */
+ if (ctx->ht.protection == IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
+ rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
+ /* Note: control channel is opposite of extension channel */
+ switch (ctx->ht.extension_chan_offset) {
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ rxon->flags &=
+ ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
+ break;
+ }
+ } else {
+ /* Note: control channel is opposite of extension channel */
+ switch (ctx->ht.extension_chan_offset) {
+ case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+ rxon->flags &=
+ ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
+ rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+ rxon->flags |= RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
+ rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
+ break;
+ case IEEE80211_HT_PARAM_CHA_SEC_NONE:
+ default:
+ /* channel location only valid if in Mixed mode */
+ IL_ERR("invalid extension channel offset\n");
+ break;
+ }
+ }
+ } else {
+ rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY;
+ }
+
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+
+ D_ASSOC("rxon flags 0x%X operation mode :0x%X "
+ "extension channel offset 0x%x\n", le32_to_cpu(rxon->flags),
+ ctx->ht.protection, ctx->ht.extension_chan_offset);
+}
+
+void
+il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf)
+{
+ _il_set_rxon_ht(il, ht_conf, &il->ctx);
+}
+EXPORT_SYMBOL(il_set_rxon_ht);
+
+/* Return valid, unused, channel for a passive scan to reset the RF */
+u8
+il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band)
+{
+ const struct il_channel_info *ch_info;
+ int i;
+ u8 channel = 0;
+ u8 min, max;
+
+ if (band == IEEE80211_BAND_5GHZ) {
+ min = 14;
+ max = il->channel_count;
+ } else {
+ min = 0;
+ max = 14;
+ }
+
+ for (i = min; i < max; i++) {
+ channel = il->channel_info[i].channel;
+ if (channel == le16_to_cpu(il->ctx.staging.channel))
+ continue;
+
+ ch_info = il_get_channel_info(il, band, channel);
+ if (il_is_channel_valid(ch_info))
+ break;
+ }
+
+ return channel;
+}
+EXPORT_SYMBOL(il_get_single_channel_number);
+
+/**
+ * il_set_rxon_channel - Set the band and channel values in staging RXON
+ * @ch: requested channel as a pointer to struct ieee80211_channel
+
+ * NOTE: Does not commit to the hardware; it sets appropriate bit fields
+ * in the staging RXON flag structure based on the ch->band
+ */
+int
+il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch,
+ struct il_rxon_context *ctx)
+{
+ enum ieee80211_band band = ch->band;
+ u16 channel = ch->hw_value;
+
+ if (le16_to_cpu(ctx->staging.channel) == channel && il->band == band)
+ return 0;
+
+ ctx->staging.channel = cpu_to_le16(channel);
+ if (band == IEEE80211_BAND_5GHZ)
+ ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK;
+ else
+ ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
+
+ il->band = band;
+
+ D_INFO("Staging channel set to %d [%d]\n", channel, band);
+
+ return 0;
+}
+EXPORT_SYMBOL(il_set_rxon_channel);
+
+void
+il_set_flags_for_band(struct il_priv *il, struct il_rxon_context *ctx,
+ enum ieee80211_band band, struct ieee80211_vif *vif)
+{
+ if (band == IEEE80211_BAND_5GHZ) {
+ ctx->staging.flags &=
+ ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK |
+ RXON_FLG_CCK_MSK);
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ } else {
+ /* Copied from il_post_associate() */
+ if (vif && vif->bss_conf.use_short_slot)
+ ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
+
+ ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
+ ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK;
+ ctx->staging.flags &= ~RXON_FLG_CCK_MSK;
+ }
+}
+EXPORT_SYMBOL(il_set_flags_for_band);
+
+/*
+ * initialize rxon structure with default values from eeprom
+ */
+void
+il_connection_init_rx_config(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ const struct il_channel_info *ch_info;
+
+ memset(&ctx->staging, 0, sizeof(ctx->staging));
+
+ if (!ctx->vif) {
+ ctx->staging.dev_type = ctx->unused_devtype;
+ } else
+ switch (ctx->vif->type) {
+
+ case NL80211_IFTYPE_STATION:
+ ctx->staging.dev_type = ctx->station_devtype;
+ ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ case NL80211_IFTYPE_ADHOC:
+ ctx->staging.dev_type = ctx->ibss_devtype;
+ ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
+ ctx->staging.filter_flags =
+ RXON_FILTER_BCON_AWARE_MSK |
+ RXON_FILTER_ACCEPT_GRP_MSK;
+ break;
+
+ default:
+ IL_ERR("Unsupported interface type %d\n",
+ ctx->vif->type);
+ break;
+ }
+
+#if 0
+ /* TODO: Figure out when short_preamble would be set and cache from
+ * that */
+ if (!hw_to_local(il->hw)->short_preamble)
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+#endif
+
+ ch_info =
+ il_get_channel_info(il, il->band, le16_to_cpu(ctx->active.channel));
+
+ if (!ch_info)
+ ch_info = &il->channel_info[0];
+
+ ctx->staging.channel = cpu_to_le16(ch_info->channel);
+ il->band = ch_info->band;
+
+ il_set_flags_for_band(il, ctx, il->band, ctx->vif);
+
+ ctx->staging.ofdm_basic_rates =
+ (IL_OFDM_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF;
+ ctx->staging.cck_basic_rates =
+ (IL_CCK_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF;
+
+ /* clear both MIX and PURE40 mode flag */
+ ctx->staging.flags &=
+ ~(RXON_FLG_CHANNEL_MODE_MIXED | RXON_FLG_CHANNEL_MODE_PURE_40);
+ if (ctx->vif)
+ memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN);
+
+ ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff;
+ ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff;
+}
+EXPORT_SYMBOL(il_connection_init_rx_config);
+
+void
+il_set_rate(struct il_priv *il)
+{
+ const struct ieee80211_supported_band *hw = NULL;
+ struct ieee80211_rate *rate;
+ int i;
+
+ hw = il_get_hw_mode(il, il->band);
+ if (!hw) {
+ IL_ERR("Failed to set rate: unable to get hw mode\n");
+ return;
+ }
+
+ il->active_rate = 0;
+
+ for (i = 0; i < hw->n_bitrates; i++) {
+ rate = &(hw->bitrates[i]);
+ if (rate->hw_value < RATE_COUNT_LEGACY)
+ il->active_rate |= (1 << rate->hw_value);
+ }
+
+ D_RATE("Set active_rate = %0x\n", il->active_rate);
+
+ il->ctx.staging.cck_basic_rates =
+ (IL_CCK_BASIC_RATES_MASK >> IL_FIRST_CCK_RATE) & 0xF;
+
+ il->ctx.staging.ofdm_basic_rates =
+ (IL_OFDM_BASIC_RATES_MASK >> IL_FIRST_OFDM_RATE) & 0xFF;
+}
+EXPORT_SYMBOL(il_set_rate);
+
+void
+il_chswitch_done(struct il_priv *il, bool is_success)
+{
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ if (test_and_clear_bit(S_CHANNEL_SWITCH_PENDING, &il->status))
+ ieee80211_chswitch_done(ctx->vif, is_success);
+}
+EXPORT_SYMBOL(il_chswitch_done);
+
+void
+il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_csa_notification *csa = &(pkt->u.csa_notif);
+
+ struct il_rxon_context *ctx = &il->ctx;
+ struct il_rxon_cmd *rxon = (void *)&ctx->active;
+
+ if (!test_bit(S_CHANNEL_SWITCH_PENDING, &il->status))
+ return;
+
+ if (!le32_to_cpu(csa->status) && csa->channel == il->switch_channel) {
+ rxon->channel = csa->channel;
+ ctx->staging.channel = csa->channel;
+ D_11H("CSA notif: channel %d\n", le16_to_cpu(csa->channel));
+ il_chswitch_done(il, true);
+ } else {
+ IL_ERR("CSA notif (fail) : channel %d\n",
+ le16_to_cpu(csa->channel));
+ il_chswitch_done(il, false);
+ }
+}
+EXPORT_SYMBOL(il_hdl_csa);
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+void
+il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ struct il_rxon_cmd *rxon = &ctx->staging;
+
+ D_RADIO("RX CONFIG:\n");
+ il_print_hex_dump(il, IL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
+ D_RADIO("u16 channel: 0x%x\n", le16_to_cpu(rxon->channel));
+ D_RADIO("u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
+ D_RADIO("u32 filter_flags: 0x%08x\n", le32_to_cpu(rxon->filter_flags));
+ D_RADIO("u8 dev_type: 0x%x\n", rxon->dev_type);
+ D_RADIO("u8 ofdm_basic_rates: 0x%02x\n", rxon->ofdm_basic_rates);
+ D_RADIO("u8 cck_basic_rates: 0x%02x\n", rxon->cck_basic_rates);
+ D_RADIO("u8[6] node_addr: %pM\n", rxon->node_addr);
+ D_RADIO("u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
+ D_RADIO("u16 assoc_id: 0x%x\n", le16_to_cpu(rxon->assoc_id));
+}
+EXPORT_SYMBOL(il_print_rx_config_cmd);
+#endif
+/**
+ * il_irq_handle_error - called for HW or SW error interrupt from card
+ */
+void
+il_irq_handle_error(struct il_priv *il)
+{
+ /* Set the FW error flag -- cleared on il_down */
+ set_bit(S_FW_ERROR, &il->status);
+
+ /* Cancel currently queued command. */
+ clear_bit(S_HCMD_ACTIVE, &il->status);
+
+ IL_ERR("Loaded firmware version: %s\n", il->hw->wiphy->fw_version);
+
+ il->cfg->ops->lib->dump_nic_error_log(il);
+ if (il->cfg->ops->lib->dump_fh)
+ il->cfg->ops->lib->dump_fh(il, NULL, false);
+#ifdef CONFIG_IWLEGACY_DEBUG
+ if (il_get_debug_level(il) & IL_DL_FW_ERRORS)
+ il_print_rx_config_cmd(il, &il->ctx);
+#endif
+
+ wake_up(&il->wait_command_queue);
+
+ /* Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit */
+ clear_bit(S_READY, &il->status);
+
+ if (!test_bit(S_EXIT_PENDING, &il->status)) {
+ IL_DBG(IL_DL_FW_ERRORS,
+ "Restarting adapter due to uCode error.\n");
+
+ if (il->cfg->mod_params->restart_fw)
+ queue_work(il->workqueue, &il->restart);
+ }
+}
+EXPORT_SYMBOL(il_irq_handle_error);
+
+static int
+il_apm_stop_master(struct il_priv *il)
+{
+ int ret = 0;
+
+ /* stop device's busmaster DMA activity */
+ il_set_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
+
+ ret =
+ _il_poll_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED,
+ CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
+ if (ret)
+ IL_WARN("Master Disable Timed Out, 100 usec\n");
+
+ D_INFO("stop master\n");
+
+ return ret;
+}
+
+void
+il_apm_stop(struct il_priv *il)
+{
+ D_INFO("Stop card, put in low power state\n");
+
+ /* Stop device's DMA activity */
+ il_apm_stop_master(il);
+
+ /* Reset the entire device */
+ il_set_bit(il, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
+
+ udelay(10);
+
+ /*
+ * Clear "initialization complete" bit to move adapter from
+ * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
+ */
+ il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+}
+EXPORT_SYMBOL(il_apm_stop);
+
+/*
+ * Start up NIC's basic functionality after it has been reset
+ * (e.g. after platform boot, or shutdown via il_apm_stop())
+ * NOTE: This does not load uCode nor start the embedded processor
+ */
+int
+il_apm_init(struct il_priv *il)
+{
+ int ret = 0;
+ u16 lctl;
+
+ D_INFO("Init card's basic functions\n");
+
+ /*
+ * Use "set_bit" below rather than "write", to preserve any hardware
+ * bits already set by default after reset.
+ */
+
+ /* Disable L0S exit timer (platform NMI Work/Around) */
+ il_set_bit(il, CSR_GIO_CHICKEN_BITS,
+ CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
+
+ /*
+ * Disable L0s without affecting L1;
+ * don't wait for ICH L0s (ICH bug W/A)
+ */
+ il_set_bit(il, CSR_GIO_CHICKEN_BITS,
+ CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
+
+ /* Set FH wait threshold to maximum (HW error during stress W/A) */
+ il_set_bit(il, CSR_DBG_HPET_MEM_REG, CSR_DBG_HPET_MEM_REG_VAL);
+
+ /*
+ * Enable HAP INTA (interrupt from management bus) to
+ * wake device's PCI Express link L1a -> L0s
+ * NOTE: This is no-op for 3945 (non-existent bit)
+ */
+ il_set_bit(il, CSR_HW_IF_CONFIG_REG,
+ CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
+
+ /*
+ * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
+ * Check if BIOS (or OS) enabled L1-ASPM on this device.
+ * If so (likely), disable L0S, so device moves directly L0->L1;
+ * costs negligible amount of power savings.
+ * If not (unlikely), enable L0S, so there is at least some
+ * power savings, even without L1.
+ */
+ if (il->cfg->base_params->set_l0s) {
+ lctl = il_pcie_link_ctl(il);
+ if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
+ PCI_CFG_LINK_CTRL_VAL_L1_EN) {
+ /* L1-ASPM enabled; disable(!) L0S */
+ il_set_bit(il, CSR_GIO_REG,
+ CSR_GIO_REG_VAL_L0S_ENABLED);
+ D_POWER("L1 Enabled; Disabling L0S\n");
+ } else {
+ /* L1-ASPM disabled; enable(!) L0S */
+ il_clear_bit(il, CSR_GIO_REG,
+ CSR_GIO_REG_VAL_L0S_ENABLED);
+ D_POWER("L1 Disabled; Enabling L0S\n");
+ }
+ }
+
+ /* Configure analog phase-lock-loop before activating to D0A */
+ if (il->cfg->base_params->pll_cfg_val)
+ il_set_bit(il, CSR_ANA_PLL_CFG,
+ il->cfg->base_params->pll_cfg_val);
+
+ /*
+ * Set "initialization complete" bit to move adapter from
+ * D0U* --> D0A* (powered-up active) state.
+ */
+ il_set_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+
+ /*
+ * Wait for clock stabilization; once stabilized, access to
+ * device-internal resources is supported, e.g. il_wr_prph()
+ * and accesses to uCode SRAM.
+ */
+ ret =
+ _il_poll_bit(il, CSR_GP_CNTRL,
+ CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
+ CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
+ if (ret < 0) {
+ D_INFO("Failed to init the card\n");
+ goto out;
+ }
+
+ /*
+ * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
+ * BSM (Boostrap State Machine) is only in 3945 and 4965.
+ *
+ * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
+ * do not disable clocks. This preserves any hardware bits already
+ * set by default in "CLK_CTRL_REG" after reset.
+ */
+ if (il->cfg->base_params->use_bsm)
+ il_wr_prph(il, APMG_CLK_EN_REG,
+ APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
+ else
+ il_wr_prph(il, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT);
+ udelay(20);
+
+ /* Disable L1-Active */
+ il_set_bits_prph(il, APMG_PCIDEV_STT_REG,
+ APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(il_apm_init);
+
+int
+il_set_tx_power(struct il_priv *il, s8 tx_power, bool force)
+{
+ int ret;
+ s8 prev_tx_power;
+ bool defer;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ lockdep_assert_held(&il->mutex);
+
+ if (il->tx_power_user_lmt == tx_power && !force)
+ return 0;
+
+ if (!il->cfg->ops->lib->send_tx_power)
+ return -EOPNOTSUPP;
+
+ /* 0 dBm mean 1 milliwatt */
+ if (tx_power < 0) {
+ IL_WARN("Requested user TXPOWER %d below 1 mW.\n", tx_power);
+ return -EINVAL;
+ }
+
+ if (tx_power > il->tx_power_device_lmt) {
+ IL_WARN("Requested user TXPOWER %d above upper limit %d.\n",
+ tx_power, il->tx_power_device_lmt);
+ return -EINVAL;
+ }
+
+ if (!il_is_ready_rf(il))
+ return -EIO;
+
+ /* scan complete and commit_rxon use tx_power_next value,
+ * it always need to be updated for newest request */
+ il->tx_power_next = tx_power;
+
+ /* do not set tx power when scanning or channel changing */
+ defer = test_bit(S_SCANNING, &il->status) ||
+ memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging));
+ if (defer && !force) {
+ D_INFO("Deferring tx power set\n");
+ return 0;
+ }
+
+ prev_tx_power = il->tx_power_user_lmt;
+ il->tx_power_user_lmt = tx_power;
+
+ ret = il->cfg->ops->lib->send_tx_power(il);
+
+ /* if fail to set tx_power, restore the orig. tx power */
+ if (ret) {
+ il->tx_power_user_lmt = prev_tx_power;
+ il->tx_power_next = prev_tx_power;
+ }
+ return ret;
+}
+EXPORT_SYMBOL(il_set_tx_power);
+
+void
+il_send_bt_config(struct il_priv *il)
+{
+ struct il_bt_cmd bt_cmd = {
+ .lead_time = BT_LEAD_TIME_DEF,
+ .max_kill = BT_MAX_KILL_DEF,
+ .kill_ack_mask = 0,
+ .kill_cts_mask = 0,
+ };
+
+ if (!bt_coex_active)
+ bt_cmd.flags = BT_COEX_DISABLE;
+ else
+ bt_cmd.flags = BT_COEX_ENABLE;
+
+ D_INFO("BT coex %s\n",
+ (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
+
+ if (il_send_cmd_pdu(il, C_BT_CONFIG, sizeof(struct il_bt_cmd), &bt_cmd))
+ IL_ERR("failed to send BT Coex Config\n");
+}
+EXPORT_SYMBOL(il_send_bt_config);
+
+int
+il_send_stats_request(struct il_priv *il, u8 flags, bool clear)
+{
+ struct il_stats_cmd stats_cmd = {
+ .configuration_flags = clear ? IL_STATS_CONF_CLEAR_STATS : 0,
+ };
+
+ if (flags & CMD_ASYNC)
+ return il_send_cmd_pdu_async(il, C_STATS, sizeof(struct il_stats_cmd),
+ &stats_cmd, NULL);
+ else
+ return il_send_cmd_pdu(il, C_STATS, sizeof(struct il_stats_cmd),
+ &stats_cmd);
+}
+EXPORT_SYMBOL(il_send_stats_request);
+
+void
+il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb)
+{
+#ifdef CONFIG_IWLEGACY_DEBUG
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ struct il_sleep_notification *sleep = &(pkt->u.sleep_notif);
+ D_RX("sleep mode: %d, src: %d\n",
+ sleep->pm_sleep_mode, sleep->pm_wakeup_src);
+#endif
+}
+EXPORT_SYMBOL(il_hdl_pm_sleep);
+
+void
+il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+ u32 len = le32_to_cpu(pkt->len_n_flags) & IL_RX_FRAME_SIZE_MSK;
+ D_RADIO("Dumping %d bytes of unhandled notification for %s:\n", len,
+ il_get_cmd_string(pkt->hdr.cmd));
+ il_print_hex_dump(il, IL_DL_RADIO, pkt->u.raw, len);
+}
+EXPORT_SYMBOL(il_hdl_pm_debug_stats);
+
+void
+il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb)
+{
+ struct il_rx_pkt *pkt = rxb_addr(rxb);
+
+ IL_ERR("Error Reply type 0x%08X cmd %s (0x%02X) "
+ "seq 0x%04X ser 0x%08X\n",
+ le32_to_cpu(pkt->u.err_resp.error_type),
+ il_get_cmd_string(pkt->u.err_resp.cmd_id),
+ pkt->u.err_resp.cmd_id,
+ le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
+ le32_to_cpu(pkt->u.err_resp.error_info));
+}
+EXPORT_SYMBOL(il_hdl_error);
+
+void
+il_clear_isr_stats(struct il_priv *il)
+{
+ memset(&il->isr_stats, 0, sizeof(il->isr_stats));
+}
+
+int
+il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
+ const struct ieee80211_tx_queue_params *params)
+{
+ struct il_priv *il = hw->priv;
+ unsigned long flags;
+ int q;
+
+ D_MAC80211("enter\n");
+
+ if (!il_is_ready_rf(il)) {
+ D_MAC80211("leave - RF not ready\n");
+ return -EIO;
+ }
+
+ if (queue >= AC_NUM) {
+ D_MAC80211("leave - queue >= AC_NUM %d\n", queue);
+ return 0;
+ }
+
+ q = AC_NUM - 1 - queue;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ il->ctx.qos_data.def_qos_parm.ac[q].cw_min =
+ cpu_to_le16(params->cw_min);
+ il->ctx.qos_data.def_qos_parm.ac[q].cw_max =
+ cpu_to_le16(params->cw_max);
+ il->ctx.qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
+ il->ctx.qos_data.def_qos_parm.ac[q].edca_txop =
+ cpu_to_le16((params->txop * 32));
+
+ il->ctx.qos_data.def_qos_parm.ac[q].reserved1 = 0;
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ D_MAC80211("leave\n");
+ return 0;
+}
+EXPORT_SYMBOL(il_mac_conf_tx);
+
+int
+il_mac_tx_last_beacon(struct ieee80211_hw *hw)
+{
+ struct il_priv *il = hw->priv;
+
+ return il->ibss_manager == IL_IBSS_MANAGER;
+}
+EXPORT_SYMBOL_GPL(il_mac_tx_last_beacon);
+
+static int
+il_set_mode(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ il_connection_init_rx_config(il, ctx);
+
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+
+ return il_commit_rxon(il, ctx);
+}
+
+static int
+il_setup_interface(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ struct ieee80211_vif *vif = ctx->vif;
+ int err;
+
+ lockdep_assert_held(&il->mutex);
+
+ /*
+ * This variable will be correct only when there's just
+ * a single context, but all code using it is for hardware
+ * that supports only one context.
+ */
+ il->iw_mode = vif->type;
+
+ ctx->is_active = true;
+
+ err = il_set_mode(il, ctx);
+ if (err) {
+ if (!ctx->always_active)
+ ctx->is_active = false;
+ return err;
+ }
+
+ return 0;
+}
+
+int
+il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct il_priv *il = hw->priv;
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+ int err;
+ u32 modes;
+
+ D_MAC80211("enter: type %d, addr %pM\n", vif->type, vif->addr);
+
+ mutex_lock(&il->mutex);
+
+ if (!il_is_ready_rf(il)) {
+ IL_WARN("Try to add interface when device not ready\n");
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* check if busy context is exclusive */
+ if (il->ctx.vif &&
+ (il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type))) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ modes = il->ctx.interface_modes | il->ctx.exclusive_interface_modes;
+ if (!(modes & BIT(vif->type))) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ vif_priv->ctx = &il->ctx;
+ il->ctx.vif = vif;
+
+ err = il_setup_interface(il, &il->ctx);
+ if (err) {
+ il->ctx.vif = NULL;
+ il->iw_mode = NL80211_IFTYPE_STATION;
+ }
+
+out:
+ mutex_unlock(&il->mutex);
+
+ D_MAC80211("leave\n");
+ return err;
+}
+EXPORT_SYMBOL(il_mac_add_interface);
+
+static void
+il_teardown_interface(struct il_priv *il, struct ieee80211_vif *vif,
+ bool mode_change)
+{
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+
+ lockdep_assert_held(&il->mutex);
+
+ if (il->scan_vif == vif) {
+ il_scan_cancel_timeout(il, 200);
+ il_force_scan_end(il);
+ }
+
+ if (!mode_change) {
+ il_set_mode(il, ctx);
+ if (!ctx->always_active)
+ ctx->is_active = false;
+ }
+}
+
+void
+il_mac_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct il_priv *il = hw->priv;
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+
+ D_MAC80211("enter\n");
+
+ mutex_lock(&il->mutex);
+
+ WARN_ON(ctx->vif != vif);
+ ctx->vif = NULL;
+
+ il_teardown_interface(il, vif, false);
+
+ memset(il->bssid, 0, ETH_ALEN);
+ mutex_unlock(&il->mutex);
+
+ D_MAC80211("leave\n");
+
+}
+EXPORT_SYMBOL(il_mac_remove_interface);
+
+int
+il_alloc_txq_mem(struct il_priv *il)
+{
+ if (!il->txq)
+ il->txq =
+ kzalloc(sizeof(struct il_tx_queue) *
+ il->cfg->base_params->num_of_queues, GFP_KERNEL);
+ if (!il->txq) {
+ IL_ERR("Not enough memory for txq\n");
+ return -ENOMEM;
+ }
+ return 0;
+}
+EXPORT_SYMBOL(il_alloc_txq_mem);
+
+void
+il_txq_mem(struct il_priv *il)
+{
+ kfree(il->txq);
+ il->txq = NULL;
+}
+EXPORT_SYMBOL(il_txq_mem);
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+
+#define IL_TRAFFIC_DUMP_SIZE (IL_TRAFFIC_ENTRY_SIZE * IL_TRAFFIC_ENTRIES)
+
+void
+il_reset_traffic_log(struct il_priv *il)
+{
+ il->tx_traffic_idx = 0;
+ il->rx_traffic_idx = 0;
+ if (il->tx_traffic)
+ memset(il->tx_traffic, 0, IL_TRAFFIC_DUMP_SIZE);
+ if (il->rx_traffic)
+ memset(il->rx_traffic, 0, IL_TRAFFIC_DUMP_SIZE);
+}
+
+int
+il_alloc_traffic_mem(struct il_priv *il)
+{
+ u32 traffic_size = IL_TRAFFIC_DUMP_SIZE;
+
+ if (il_debug_level & IL_DL_TX) {
+ if (!il->tx_traffic) {
+ il->tx_traffic = kzalloc(traffic_size, GFP_KERNEL);
+ if (!il->tx_traffic)
+ return -ENOMEM;
+ }
+ }
+ if (il_debug_level & IL_DL_RX) {
+ if (!il->rx_traffic) {
+ il->rx_traffic = kzalloc(traffic_size, GFP_KERNEL);
+ if (!il->rx_traffic)
+ return -ENOMEM;
+ }
+ }
+ il_reset_traffic_log(il);
+ return 0;
+}
+EXPORT_SYMBOL(il_alloc_traffic_mem);
+
+void
+il_free_traffic_mem(struct il_priv *il)
+{
+ kfree(il->tx_traffic);
+ il->tx_traffic = NULL;
+
+ kfree(il->rx_traffic);
+ il->rx_traffic = NULL;
+}
+EXPORT_SYMBOL(il_free_traffic_mem);
+
+void
+il_dbg_log_tx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header)
+{
+ __le16 fc;
+ u16 len;
+
+ if (likely(!(il_debug_level & IL_DL_TX)))
+ return;
+
+ if (!il->tx_traffic)
+ return;
+
+ fc = header->frame_control;
+ if (ieee80211_is_data(fc)) {
+ len =
+ (length >
+ IL_TRAFFIC_ENTRY_SIZE) ? IL_TRAFFIC_ENTRY_SIZE : length;
+ memcpy((il->tx_traffic +
+ (il->tx_traffic_idx * IL_TRAFFIC_ENTRY_SIZE)), header,
+ len);
+ il->tx_traffic_idx =
+ (il->tx_traffic_idx + 1) % IL_TRAFFIC_ENTRIES;
+ }
+}
+EXPORT_SYMBOL(il_dbg_log_tx_data_frame);
+
+void
+il_dbg_log_rx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header)
+{
+ __le16 fc;
+ u16 len;
+
+ if (likely(!(il_debug_level & IL_DL_RX)))
+ return;
+
+ if (!il->rx_traffic)
+ return;
+
+ fc = header->frame_control;
+ if (ieee80211_is_data(fc)) {
+ len =
+ (length >
+ IL_TRAFFIC_ENTRY_SIZE) ? IL_TRAFFIC_ENTRY_SIZE : length;
+ memcpy((il->rx_traffic +
+ (il->rx_traffic_idx * IL_TRAFFIC_ENTRY_SIZE)), header,
+ len);
+ il->rx_traffic_idx =
+ (il->rx_traffic_idx + 1) % IL_TRAFFIC_ENTRIES;
+ }
+}
+EXPORT_SYMBOL(il_dbg_log_rx_data_frame);
+
+const char *
+il_get_mgmt_string(int cmd)
+{
+ switch (cmd) {
+ IL_CMD(MANAGEMENT_ASSOC_REQ);
+ IL_CMD(MANAGEMENT_ASSOC_RESP);
+ IL_CMD(MANAGEMENT_REASSOC_REQ);
+ IL_CMD(MANAGEMENT_REASSOC_RESP);
+ IL_CMD(MANAGEMENT_PROBE_REQ);
+ IL_CMD(MANAGEMENT_PROBE_RESP);
+ IL_CMD(MANAGEMENT_BEACON);
+ IL_CMD(MANAGEMENT_ATIM);
+ IL_CMD(MANAGEMENT_DISASSOC);
+ IL_CMD(MANAGEMENT_AUTH);
+ IL_CMD(MANAGEMENT_DEAUTH);
+ IL_CMD(MANAGEMENT_ACTION);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+const char *
+il_get_ctrl_string(int cmd)
+{
+ switch (cmd) {
+ IL_CMD(CONTROL_BACK_REQ);
+ IL_CMD(CONTROL_BACK);
+ IL_CMD(CONTROL_PSPOLL);
+ IL_CMD(CONTROL_RTS);
+ IL_CMD(CONTROL_CTS);
+ IL_CMD(CONTROL_ACK);
+ IL_CMD(CONTROL_CFEND);
+ IL_CMD(CONTROL_CFENDACK);
+ default:
+ return "UNKNOWN";
+
+ }
+}
+
+void
+il_clear_traffic_stats(struct il_priv *il)
+{
+ memset(&il->tx_stats, 0, sizeof(struct traffic_stats));
+ memset(&il->rx_stats, 0, sizeof(struct traffic_stats));
+}
+
+/*
+ * if CONFIG_IWLEGACY_DEBUGFS defined,
+ * il_update_stats function will
+ * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass
+ * Use debugFs to display the rx/rx_stats
+ * if CONFIG_IWLEGACY_DEBUGFS not being defined, then no MGMT and CTRL
+ * information will be recorded, but DATA pkt still will be recorded
+ * for the reason of il_led.c need to control the led blinking based on
+ * number of tx and rx data.
+ *
+ */
+void
+il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
+{
+ struct traffic_stats *stats;
+
+ if (is_tx)
+ stats = &il->tx_stats;
+ else
+ stats = &il->rx_stats;
+
+ if (ieee80211_is_mgmt(fc)) {
+ switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+ case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
+ stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
+ stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
+ stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
+ stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
+ stats->mgmt[MANAGEMENT_PROBE_REQ]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+ stats->mgmt[MANAGEMENT_PROBE_RESP]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_BEACON):
+ stats->mgmt[MANAGEMENT_BEACON]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_ATIM):
+ stats->mgmt[MANAGEMENT_ATIM]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+ stats->mgmt[MANAGEMENT_DISASSOC]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_AUTH):
+ stats->mgmt[MANAGEMENT_AUTH]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+ stats->mgmt[MANAGEMENT_DEAUTH]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_ACTION):
+ stats->mgmt[MANAGEMENT_ACTION]++;
+ break;
+ }
+ } else if (ieee80211_is_ctl(fc)) {
+ switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+ case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
+ stats->ctrl[CONTROL_BACK_REQ]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_BACK):
+ stats->ctrl[CONTROL_BACK]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
+ stats->ctrl[CONTROL_PSPOLL]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_RTS):
+ stats->ctrl[CONTROL_RTS]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_CTS):
+ stats->ctrl[CONTROL_CTS]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_ACK):
+ stats->ctrl[CONTROL_ACK]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_CFEND):
+ stats->ctrl[CONTROL_CFEND]++;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
+ stats->ctrl[CONTROL_CFENDACK]++;
+ break;
+ }
+ } else {
+ /* data */
+ stats->data_cnt++;
+ stats->data_bytes += len;
+ }
+}
+EXPORT_SYMBOL(il_update_stats);
+#endif
+
+int
+il_force_reset(struct il_priv *il, bool external)
+{
+ struct il_force_reset *force_reset;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return -EINVAL;
+
+ force_reset = &il->force_reset;
+ force_reset->reset_request_count++;
+ if (!external) {
+ if (force_reset->last_force_reset_jiffies &&
+ time_after(force_reset->last_force_reset_jiffies +
+ force_reset->reset_duration, jiffies)) {
+ D_INFO("force reset rejected\n");
+ force_reset->reset_reject_count++;
+ return -EAGAIN;
+ }
+ }
+ force_reset->reset_success_count++;
+ force_reset->last_force_reset_jiffies = jiffies;
+
+ /*
+ * if the request is from external(ex: debugfs),
+ * then always perform the request in regardless the module
+ * parameter setting
+ * if the request is from internal (uCode error or driver
+ * detect failure), then fw_restart module parameter
+ * need to be check before performing firmware reload
+ */
+
+ if (!external && !il->cfg->mod_params->restart_fw) {
+ D_INFO("Cancel firmware reload based on "
+ "module parameter setting\n");
+ return 0;
+ }
+
+ IL_ERR("On demand firmware reload\n");
+
+ /* Set the FW error flag -- cleared on il_down */
+ set_bit(S_FW_ERROR, &il->status);
+ wake_up(&il->wait_command_queue);
+ /*
+ * Keep the restart process from trying to send host
+ * commands by clearing the INIT status bit
+ */
+ clear_bit(S_READY, &il->status);
+ queue_work(il->workqueue, &il->restart);
+
+ return 0;
+}
+
+int
+il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum nl80211_iftype newtype, bool newp2p)
+{
+ struct il_priv *il = hw->priv;
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+ u32 modes;
+ int err;
+
+ newtype = ieee80211_iftype_p2p(newtype, newp2p);
+
+ mutex_lock(&il->mutex);
+
+ if (!ctx->vif || !il_is_ready_rf(il)) {
+ /*
+ * Huh? But wait ... this can maybe happen when
+ * we're in the middle of a firmware restart!
+ */
+ err = -EBUSY;
+ goto out;
+ }
+
+ modes = ctx->interface_modes | ctx->exclusive_interface_modes;
+ if (!(modes & BIT(newtype))) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if ((il->ctx.exclusive_interface_modes & BIT(il->ctx.vif->type)) ||
+ (il->ctx.exclusive_interface_modes & BIT(newtype))) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ /* success */
+ il_teardown_interface(il, vif, true);
+ vif->type = newtype;
+ vif->p2p = newp2p;
+ err = il_setup_interface(il, ctx);
+ WARN_ON(err);
+ /*
+ * We've switched internally, but submitting to the
+ * device may have failed for some reason. Mask this
+ * error, because otherwise mac80211 will not switch
+ * (and set the interface type back) and we'll be
+ * out of sync with it.
+ */
+ err = 0;
+
+out:
+ mutex_unlock(&il->mutex);
+ return err;
+}
+EXPORT_SYMBOL(il_mac_change_interface);
+
+/*
+ * On every watchdog tick we check (latest) time stamp. If it does not
+ * change during timeout period and queue is not empty we reset firmware.
+ */
+static int
+il_check_stuck_queue(struct il_priv *il, int cnt)
+{
+ struct il_tx_queue *txq = &il->txq[cnt];
+ struct il_queue *q = &txq->q;
+ unsigned long timeout;
+ int ret;
+
+ if (q->read_ptr == q->write_ptr) {
+ txq->time_stamp = jiffies;
+ return 0;
+ }
+
+ timeout =
+ txq->time_stamp +
+ msecs_to_jiffies(il->cfg->base_params->wd_timeout);
+
+ if (time_after(jiffies, timeout)) {
+ IL_ERR("Queue %d stuck for %u ms.\n", q->id,
+ il->cfg->base_params->wd_timeout);
+ ret = il_force_reset(il, false);
+ return (ret == -EAGAIN) ? 0 : 1;
+ }
+
+ return 0;
+}
+
+/*
+ * Making watchdog tick be a quarter of timeout assure we will
+ * discover the queue hung between timeout and 1.25*timeout
+ */
+#define IL_WD_TICK(timeout) ((timeout) / 4)
+
+/*
+ * Watchdog timer callback, we check each tx queue for stuck, if if hung
+ * we reset the firmware. If everything is fine just rearm the timer.
+ */
+void
+il_bg_watchdog(unsigned long data)
+{
+ struct il_priv *il = (struct il_priv *)data;
+ int cnt;
+ unsigned long timeout;
+
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ timeout = il->cfg->base_params->wd_timeout;
+ if (timeout == 0)
+ return;
+
+ /* monitor and check for stuck cmd queue */
+ if (il_check_stuck_queue(il, il->cmd_queue))
+ return;
+
+ /* monitor and check for other stuck queues */
+ if (il_is_any_associated(il)) {
+ for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+ /* skip as we already checked the command queue */
+ if (cnt == il->cmd_queue)
+ continue;
+ if (il_check_stuck_queue(il, cnt))
+ return;
+ }
+ }
+
+ mod_timer(&il->watchdog,
+ jiffies + msecs_to_jiffies(IL_WD_TICK(timeout)));
+}
+EXPORT_SYMBOL(il_bg_watchdog);
+
+void
+il_setup_watchdog(struct il_priv *il)
+{
+ unsigned int timeout = il->cfg->base_params->wd_timeout;
+
+ if (timeout)
+ mod_timer(&il->watchdog,
+ jiffies + msecs_to_jiffies(IL_WD_TICK(timeout)));
+ else
+ del_timer(&il->watchdog);
+}
+EXPORT_SYMBOL(il_setup_watchdog);
+
+/*
+ * extended beacon time format
+ * time in usec will be changed into a 32-bit value in extended:internal format
+ * the extended part is the beacon counts
+ * the internal part is the time in usec within one beacon interval
+ */
+u32
+il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval)
+{
+ u32 quot;
+ u32 rem;
+ u32 interval = beacon_interval * TIME_UNIT;
+
+ if (!interval || !usec)
+ return 0;
+
+ quot =
+ (usec /
+ interval) & (il_beacon_time_mask_high(il,
+ il->hw_params.
+ beacon_time_tsf_bits) >> il->
+ hw_params.beacon_time_tsf_bits);
+ rem =
+ (usec % interval) & il_beacon_time_mask_low(il,
+ il->hw_params.
+ beacon_time_tsf_bits);
+
+ return (quot << il->hw_params.beacon_time_tsf_bits) + rem;
+}
+EXPORT_SYMBOL(il_usecs_to_beacons);
+
+/* base is usually what we get from ucode with each received frame,
+ * the same as HW timer counter counting down
+ */
+__le32
+il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
+ u32 beacon_interval)
+{
+ u32 base_low = base & il_beacon_time_mask_low(il,
+ il->hw_params.
+ beacon_time_tsf_bits);
+ u32 addon_low = addon & il_beacon_time_mask_low(il,
+ il->hw_params.
+ beacon_time_tsf_bits);
+ u32 interval = beacon_interval * TIME_UNIT;
+ u32 res = (base & il_beacon_time_mask_high(il,
+ il->hw_params.
+ beacon_time_tsf_bits)) +
+ (addon & il_beacon_time_mask_high(il,
+ il->hw_params.
+ beacon_time_tsf_bits));
+
+ if (base_low > addon_low)
+ res += base_low - addon_low;
+ else if (base_low < addon_low) {
+ res += interval + base_low - addon_low;
+ res += (1 << il->hw_params.beacon_time_tsf_bits);
+ } else
+ res += (1 << il->hw_params.beacon_time_tsf_bits);
+
+ return cpu_to_le32(res);
+}
+EXPORT_SYMBOL(il_add_beacon_time);
+
+#ifdef CONFIG_PM
+
+int
+il_pci_suspend(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct il_priv *il = pci_get_drvdata(pdev);
+
+ /*
+ * This function is called when system goes into suspend state
+ * mac80211 will call il_mac_stop() from the mac80211 suspend function
+ * first but since il_mac_stop() has no knowledge of who the caller is,
+ * it will not call apm_ops.stop() to stop the DMA operation.
+ * Calling apm_ops.stop here to make sure we stop the DMA.
+ */
+ il_apm_stop(il);
+
+ return 0;
+}
+EXPORT_SYMBOL(il_pci_suspend);
+
+int
+il_pci_resume(struct device *device)
+{
+ struct pci_dev *pdev = to_pci_dev(device);
+ struct il_priv *il = pci_get_drvdata(pdev);
+ bool hw_rfkill = false;
+
+ /*
+ * We disable the RETRY_TIMEOUT register (0x41) to keep
+ * PCI Tx retries from interfering with C3 CPU state.
+ */
+ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
+
+ il_enable_interrupts(il);
+
+ if (!(_il_rd(il, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
+ hw_rfkill = true;
+
+ if (hw_rfkill)
+ set_bit(S_RF_KILL_HW, &il->status);
+ else
+ clear_bit(S_RF_KILL_HW, &il->status);
+
+ wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rfkill);
+
+ return 0;
+}
+EXPORT_SYMBOL(il_pci_resume);
+
+const struct dev_pm_ops il_pm_ops = {
+ .suspend = il_pci_suspend,
+ .resume = il_pci_resume,
+ .freeze = il_pci_suspend,
+ .thaw = il_pci_resume,
+ .poweroff = il_pci_suspend,
+ .restore = il_pci_resume,
+};
+EXPORT_SYMBOL(il_pm_ops);
+
+#endif /* CONFIG_PM */
+
+static void
+il_update_qos(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ if (test_bit(S_EXIT_PENDING, &il->status))
+ return;
+
+ if (!ctx->is_active)
+ return;
+
+ ctx->qos_data.def_qos_parm.qos_flags = 0;
+
+ if (ctx->qos_data.qos_active)
+ ctx->qos_data.def_qos_parm.qos_flags |=
+ QOS_PARAM_FLG_UPDATE_EDCA_MSK;
+
+ if (ctx->ht.enabled)
+ ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
+
+ D_QOS("send QoS cmd with Qos active=%d FLAGS=0x%X\n",
+ ctx->qos_data.qos_active, ctx->qos_data.def_qos_parm.qos_flags);
+
+ il_send_cmd_pdu_async(il, ctx->qos_cmd, sizeof(struct il_qosparam_cmd),
+ &ctx->qos_data.def_qos_parm, NULL);
+}
+
+/**
+ * il_mac_config - mac80211 config callback
+ */
+int
+il_mac_config(struct ieee80211_hw *hw, u32 changed)
+{
+ struct il_priv *il = hw->priv;
+ const struct il_channel_info *ch_info;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct ieee80211_channel *channel = conf->channel;
+ struct il_ht_config *ht_conf = &il->current_ht_config;
+ struct il_rxon_context *ctx = &il->ctx;
+ unsigned long flags = 0;
+ int ret = 0;
+ u16 ch;
+ int scan_active = 0;
+ bool ht_changed = false;
+
+ if (WARN_ON(!il->cfg->ops->legacy))
+ return -EOPNOTSUPP;
+
+ mutex_lock(&il->mutex);
+
+ D_MAC80211("enter to channel %d changed 0x%X\n", channel->hw_value,
+ changed);
+
+ if (unlikely(test_bit(S_SCANNING, &il->status))) {
+ scan_active = 1;
+ D_MAC80211("scan active\n");
+ }
+
+ if (changed &
+ (IEEE80211_CONF_CHANGE_SMPS | IEEE80211_CONF_CHANGE_CHANNEL)) {
+ /* mac80211 uses static for non-HT which is what we want */
+ il->current_ht_config.smps = conf->smps_mode;
+
+ /*
+ * Recalculate chain counts.
+ *
+ * If monitor mode is enabled then mac80211 will
+ * set up the SM PS mode to OFF if an HT channel is
+ * configured.
+ */
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, &il->ctx);
+ }
+
+ /* during scanning mac80211 will delay channel setting until
+ * scan finish with changed = 0
+ */
+ if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
+
+ if (scan_active)
+ goto set_ch_out;
+
+ ch = channel->hw_value;
+ ch_info = il_get_channel_info(il, channel->band, ch);
+ if (!il_is_channel_valid(ch_info)) {
+ D_MAC80211("leave - invalid channel\n");
+ ret = -EINVAL;
+ goto set_ch_out;
+ }
+
+ if (il->iw_mode == NL80211_IFTYPE_ADHOC &&
+ !il_is_channel_ibss(ch_info)) {
+ D_MAC80211("leave - not IBSS channel\n");
+ ret = -EINVAL;
+ goto set_ch_out;
+ }
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Configure HT40 channels */
+ if (ctx->ht.enabled != conf_is_ht(conf)) {
+ ctx->ht.enabled = conf_is_ht(conf);
+ ht_changed = true;
+ }
+ if (ctx->ht.enabled) {
+ if (conf_is_ht40_minus(conf)) {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+ ctx->ht.is_40mhz = true;
+ } else if (conf_is_ht40_plus(conf)) {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+ ctx->ht.is_40mhz = true;
+ } else {
+ ctx->ht.extension_chan_offset =
+ IEEE80211_HT_PARAM_CHA_SEC_NONE;
+ ctx->ht.is_40mhz = false;
+ }
+ } else
+ ctx->ht.is_40mhz = false;
+
+ /*
+ * Default to no protection. Protection mode will
+ * later be set from BSS config in il_ht_conf
+ */
+ ctx->ht.protection = IEEE80211_HT_OP_MODE_PROTECTION_NONE;
+
+ /* if we are switching from ht to 2.4 clear flags
+ * from any ht related info since 2.4 does not
+ * support ht */
+ if ((le16_to_cpu(ctx->staging.channel) != ch))
+ ctx->staging.flags = 0;
+
+ il_set_rxon_channel(il, channel, ctx);
+ il_set_rxon_ht(il, ht_conf);
+
+ il_set_flags_for_band(il, ctx, channel->band, ctx->vif);
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ if (il->cfg->ops->legacy->update_bcast_stations)
+ ret = il->cfg->ops->legacy->update_bcast_stations(il);
+
+set_ch_out:
+ /* The list of supported rates and rate mask can be different
+ * for each band; since the band may have changed, reset
+ * the rate mask to what mac80211 lists */
+ il_set_rate(il);
+ }
+
+ if (changed & (IEEE80211_CONF_CHANGE_PS | IEEE80211_CONF_CHANGE_IDLE)) {
+ ret = il_power_update_mode(il, false);
+ if (ret)
+ D_MAC80211("Error setting sleep level\n");
+ }
+
+ if (changed & IEEE80211_CONF_CHANGE_POWER) {
+ D_MAC80211("TX Power old=%d new=%d\n", il->tx_power_user_lmt,
+ conf->power_level);
+
+ il_set_tx_power(il, conf->power_level, false);
+ }
+
+ if (!il_is_ready(il)) {
+ D_MAC80211("leave - not ready\n");
+ goto out;
+ }
+
+ if (scan_active)
+ goto out;
+
+ if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)))
+ il_commit_rxon(il, ctx);
+ else
+ D_INFO("Not re-sending same RXON configuration.\n");
+ if (ht_changed)
+ il_update_qos(il, ctx);
+
+out:
+ D_MAC80211("leave\n");
+ mutex_unlock(&il->mutex);
+ return ret;
+}
+EXPORT_SYMBOL(il_mac_config);
+
+void
+il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct il_priv *il = hw->priv;
+ unsigned long flags;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ if (WARN_ON(!il->cfg->ops->legacy))
+ return;
+
+ mutex_lock(&il->mutex);
+ D_MAC80211("enter\n");
+
+ spin_lock_irqsave(&il->lock, flags);
+ memset(&il->current_ht_config, 0, sizeof(struct il_ht_config));
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* new association get rid of ibss beacon skb */
+ if (il->beacon_skb)
+ dev_kfree_skb(il->beacon_skb);
+
+ il->beacon_skb = NULL;
+
+ il->timestamp = 0;
+
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ il_scan_cancel_timeout(il, 100);
+ if (!il_is_ready_rf(il)) {
+ D_MAC80211("leave - not ready\n");
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ /* we are restarting association process
+ * clear RXON_FILTER_ASSOC_MSK bit
+ */
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ il_commit_rxon(il, ctx);
+
+ il_set_rate(il);
+
+ mutex_unlock(&il->mutex);
+
+ D_MAC80211("leave\n");
+}
+EXPORT_SYMBOL(il_mac_reset_tsf);
+
+static void
+il_ht_conf(struct il_priv *il, struct ieee80211_vif *vif)
+{
+ struct il_ht_config *ht_conf = &il->current_ht_config;
+ struct ieee80211_sta *sta;
+ struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+
+ D_ASSOC("enter:\n");
+
+ if (!ctx->ht.enabled)
+ return;
+
+ ctx->ht.protection =
+ bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
+ ctx->ht.non_gf_sta_present =
+ !!(bss_conf->
+ ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+
+ ht_conf->single_chain_sufficient = false;
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_STATION:
+ rcu_read_lock();
+ sta = ieee80211_find_sta(vif, bss_conf->bssid);
+ if (sta) {
+ struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+ int maxstreams;
+
+ maxstreams =
+ (ht_cap->mcs.
+ tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
+ >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
+ maxstreams += 1;
+
+ if (ht_cap->mcs.rx_mask[1] == 0 &&
+ ht_cap->mcs.rx_mask[2] == 0)
+ ht_conf->single_chain_sufficient = true;
+ if (maxstreams <= 1)
+ ht_conf->single_chain_sufficient = true;
+ } else {
+ /*
+ * If at all, this can only happen through a race
+ * when the AP disconnects us while we're still
+ * setting up the connection, in that case mac80211
+ * will soon tell us about that.
+ */
+ ht_conf->single_chain_sufficient = true;
+ }
+ rcu_read_unlock();
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ht_conf->single_chain_sufficient = true;
+ break;
+ default:
+ break;
+ }
+
+ D_ASSOC("leave\n");
+}
+
+static inline void
+il_set_no_assoc(struct il_priv *il, struct ieee80211_vif *vif)
+{
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+
+ /*
+ * inform the ucode that there is no longer an
+ * association and that no more packets should be
+ * sent
+ */
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ ctx->staging.assoc_id = 0;
+ il_commit_rxon(il, ctx);
+}
+
+static void
+il_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+{
+ struct il_priv *il = hw->priv;
+ unsigned long flags;
+ __le64 timestamp;
+ struct sk_buff *skb = ieee80211_beacon_get(hw, vif);
+
+ if (!skb)
+ return;
+
+ D_MAC80211("enter\n");
+
+ lockdep_assert_held(&il->mutex);
+
+ if (!il->beacon_ctx) {
+ IL_ERR("update beacon but no beacon context!\n");
+ dev_kfree_skb(skb);
+ return;
+ }
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ if (il->beacon_skb)
+ dev_kfree_skb(il->beacon_skb);
+
+ il->beacon_skb = skb;
+
+ timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
+ il->timestamp = le64_to_cpu(timestamp);
+
+ D_MAC80211("leave\n");
+ spin_unlock_irqrestore(&il->lock, flags);
+
+ if (!il_is_ready_rf(il)) {
+ D_MAC80211("leave - RF not ready\n");
+ return;
+ }
+
+ il->cfg->ops->legacy->post_associate(il);
+}
+
+void
+il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf, u32 changes)
+{
+ struct il_priv *il = hw->priv;
+ struct il_rxon_context *ctx = il_rxon_ctx_from_vif(vif);
+ int ret;
+
+ if (WARN_ON(!il->cfg->ops->legacy))
+ return;
+
+ D_MAC80211("changes = 0x%X\n", changes);
+
+ mutex_lock(&il->mutex);
+
+ if (!il_is_alive(il)) {
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ if (changes & BSS_CHANGED_QOS) {
+ unsigned long flags;
+
+ spin_lock_irqsave(&il->lock, flags);
+ ctx->qos_data.qos_active = bss_conf->qos;
+ il_update_qos(il, ctx);
+ spin_unlock_irqrestore(&il->lock, flags);
+ }
+
+ if (changes & BSS_CHANGED_BEACON_ENABLED) {
+ /*
+ * the add_interface code must make sure we only ever
+ * have a single interface that could be beaconing at
+ * any time.
+ */
+ if (vif->bss_conf.enable_beacon)
+ il->beacon_ctx = ctx;
+ else
+ il->beacon_ctx = NULL;
+ }
+
+ if (changes & BSS_CHANGED_BSSID) {
+ D_MAC80211("BSSID %pM\n", bss_conf->bssid);
+
+ /*
+ * If there is currently a HW scan going on in the
+ * background then we need to cancel it else the RXON
+ * below/in post_associate will fail.
+ */
+ if (il_scan_cancel_timeout(il, 100)) {
+ IL_WARN("Aborted scan still in progress after 100ms\n");
+ D_MAC80211("leaving - scan abort failed.\n");
+ mutex_unlock(&il->mutex);
+ return;
+ }
+
+ /* mac80211 only sets assoc when in STATION mode */
+ if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
+ memcpy(ctx->staging.bssid_addr, bss_conf->bssid,
+ ETH_ALEN);
+
+ /* currently needed in a few places */
+ memcpy(il->bssid, bss_conf->bssid, ETH_ALEN);
+ } else {
+ ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
+ }
+
+ }
+
+ /*
+ * This needs to be after setting the BSSID in case
+ * mac80211 decides to do both changes at once because
+ * it will invoke post_associate.
+ */
+ if (vif->type == NL80211_IFTYPE_ADHOC && (changes & BSS_CHANGED_BEACON))
+ il_beacon_update(hw, vif);
+
+ if (changes & BSS_CHANGED_ERP_PREAMBLE) {
+ D_MAC80211("ERP_PREAMBLE %d\n", bss_conf->use_short_preamble);
+ if (bss_conf->use_short_preamble)
+ ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
+ }
+
+ if (changes & BSS_CHANGED_ERP_CTS_PROT) {
+ D_MAC80211("ERP_CTS %d\n", bss_conf->use_cts_prot);
+ if (bss_conf->use_cts_prot && il->band != IEEE80211_BAND_5GHZ)
+ ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
+ else
+ ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
+ if (bss_conf->use_cts_prot)
+ ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
+ else
+ ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
+ }
+
+ if (changes & BSS_CHANGED_BASIC_RATES) {
+ /* XXX use this information
+ *
+ * To do that, remove code from il_set_rate() and put something
+ * like this here:
+ *
+ if (A-band)
+ ctx->staging.ofdm_basic_rates =
+ bss_conf->basic_rates;
+ else
+ ctx->staging.ofdm_basic_rates =
+ bss_conf->basic_rates >> 4;
+ ctx->staging.cck_basic_rates =
+ bss_conf->basic_rates & 0xF;
+ */
+ }
+
+ if (changes & BSS_CHANGED_HT) {
+ il_ht_conf(il, vif);
+
+ if (il->cfg->ops->hcmd->set_rxon_chain)
+ il->cfg->ops->hcmd->set_rxon_chain(il, ctx);
+ }
+
+ if (changes & BSS_CHANGED_ASSOC) {
+ D_MAC80211("ASSOC %d\n", bss_conf->assoc);
+ if (bss_conf->assoc) {
+ il->timestamp = bss_conf->timestamp;
+
+ if (!il_is_rfkill(il))
+ il->cfg->ops->legacy->post_associate(il);
+ } else
+ il_set_no_assoc(il, vif);
+ }
+
+ if (changes && il_is_associated_ctx(ctx) && bss_conf->aid) {
+ D_MAC80211("Changes (%#x) while associated\n", changes);
+ ret = il_send_rxon_assoc(il, ctx);
+ if (!ret) {
+ /* Sync active_rxon with latest change. */
+ memcpy((void *)&ctx->active, &ctx->staging,
+ sizeof(struct il_rxon_cmd));
+ }
+ }
+
+ if (changes & BSS_CHANGED_BEACON_ENABLED) {
+ if (vif->bss_conf.enable_beacon) {
+ memcpy(ctx->staging.bssid_addr, bss_conf->bssid,
+ ETH_ALEN);
+ memcpy(il->bssid, bss_conf->bssid, ETH_ALEN);
+ il->cfg->ops->legacy->config_ap(il);
+ } else
+ il_set_no_assoc(il, vif);
+ }
+
+ if (changes & BSS_CHANGED_IBSS) {
+ ret =
+ il->cfg->ops->legacy->manage_ibss_station(il, vif,
+ bss_conf->
+ ibss_joined);
+ if (ret)
+ IL_ERR("failed to %s IBSS station %pM\n",
+ bss_conf->ibss_joined ? "add" : "remove",
+ bss_conf->bssid);
+ }
+
+ mutex_unlock(&il->mutex);
+
+ D_MAC80211("leave\n");
+}
+EXPORT_SYMBOL(il_mac_bss_info_changed);
+
+irqreturn_t
+il_isr(int irq, void *data)
+{
+ struct il_priv *il = data;
+ u32 inta, inta_mask;
+ u32 inta_fh;
+ unsigned long flags;
+ if (!il)
+ return IRQ_NONE;
+
+ spin_lock_irqsave(&il->lock, flags);
+
+ /* Disable (but don't clear!) interrupts here to avoid
+ * back-to-back ISRs and sporadic interrupts from our NIC.
+ * If we have something to service, the tasklet will re-enable ints.
+ * If we *don't* have something, we'll re-enable before leaving here. */
+ inta_mask = _il_rd(il, CSR_INT_MASK); /* just for debug */
+ _il_wr(il, CSR_INT_MASK, 0x00000000);
+
+ /* Discover which interrupts are active/pending */
+ inta = _il_rd(il, CSR_INT);
+ inta_fh = _il_rd(il, CSR_FH_INT_STATUS);
+
+ /* Ignore interrupt if there's nothing in NIC to service.
+ * This may be due to IRQ shared with another device,
+ * or due to sporadic interrupts thrown from our NIC. */
+ if (!inta && !inta_fh) {
+ D_ISR("Ignore interrupt, inta == 0, inta_fh == 0\n");
+ goto none;
+ }
+
+ if (inta == 0xFFFFFFFF || (inta & 0xFFFFFFF0) == 0xa5a5a5a0) {
+ /* Hardware disappeared. It might have already raised
+ * an interrupt */
+ IL_WARN("HARDWARE GONE?? INTA == 0x%08x\n", inta);
+ goto unplugged;
+ }
+
+ D_ISR("ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n", inta, inta_mask,
+ inta_fh);
+
+ inta &= ~CSR_INT_BIT_SCD;
+
+ /* il_irq_tasklet() will service interrupts and re-enable them */
+ if (likely(inta || inta_fh))
+ tasklet_schedule(&il->irq_tasklet);
+
+unplugged:
+ spin_unlock_irqrestore(&il->lock, flags);
+ return IRQ_HANDLED;
+
+none:
+ /* re-enable interrupts here since we don't have anything to service. */
+ /* only Re-enable if disabled by irq */
+ if (test_bit(S_INT_ENABLED, &il->status))
+ il_enable_interrupts(il);
+ spin_unlock_irqrestore(&il->lock, flags);
+ return IRQ_NONE;
+}
+EXPORT_SYMBOL(il_isr);
+
+/*
+ * il_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
+ * function.
+ */
+void
+il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info,
+ __le16 fc, __le32 *tx_flags)
+{
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
+ *tx_flags |= TX_CMD_FLG_RTS_MSK;
+ *tx_flags &= ~TX_CMD_FLG_CTS_MSK;
+ *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+
+ if (!ieee80211_is_mgmt(fc))
+ return;
+
+ switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
+ case cpu_to_le16(IEEE80211_STYPE_AUTH):
+ case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+ case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
+ case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
+ *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ *tx_flags |= TX_CMD_FLG_CTS_MSK;
+ break;
+ }
+ } else if (info->control.rates[0].
+ flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+ *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
+ *tx_flags |= TX_CMD_FLG_CTS_MSK;
+ *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
+ }
+}
+EXPORT_SYMBOL(il_tx_cmd_protection);
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
new file mode 100644
index 0000000..1bc0b02
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -0,0 +1,3424 @@
+/******************************************************************************
+ *
+ * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ *****************************************************************************/
+#ifndef __il_core_h__
+#define __il_core_h__
+
+#include <linux/interrupt.h>
+#include <linux/pci.h> /* for struct pci_device_id */
+#include <linux/kernel.h>
+#include <linux/leds.h>
+#include <linux/wait.h>
+#include <net/mac80211.h>
+#include <net/ieee80211_radiotap.h>
+
+#include "commands.h"
+#include "csr.h"
+#include "prph.h"
+
+struct il_host_cmd;
+struct il_cmd;
+struct il_tx_queue;
+
+#define IL_ERR(f, a...) dev_err(&il->pci_dev->dev, f, ## a)
+#define IL_WARN(f, a...) dev_warn(&il->pci_dev->dev, f, ## a)
+#define IL_INFO(f, a...) dev_info(&il->pci_dev->dev, f, ## a)
+
+#define RX_QUEUE_SIZE 256
+#define RX_QUEUE_MASK 255
+#define RX_QUEUE_SIZE_LOG 8
+
+/*
+ * RX related structures and functions
+ */
+#define RX_FREE_BUFFERS 64
+#define RX_LOW_WATERMARK 8
+
+#define U32_PAD(n) ((4-(n))&0x3)
+
+/* CT-KILL constants */
+#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
+
+/* Default noise level to report when noise measurement is not available.
+ * This may be because we're:
+ * 1) Not associated (4965, no beacon stats being sent to driver)
+ * 2) Scanning (noise measurement does not apply to associated channel)
+ * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
+ * Use default noise value of -127 ... this is below the range of measurable
+ * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
+ * Also, -127 works better than 0 when averaging frames with/without
+ * noise info (e.g. averaging might be done in app); measured dBm values are
+ * always negative ... using a negative value as the default keeps all
+ * averages within an s8's (used in some apps) range of negative values. */
+#define IL_NOISE_MEAS_NOT_AVAILABLE (-127)
+
+/*
+ * RTS threshold here is total size [2347] minus 4 FCS bytes
+ * Per spec:
+ * a value of 0 means RTS on all data/management packets
+ * a value > max MSDU size means no RTS
+ * else RTS for data/management frames where MPDU is larger
+ * than RTS value.
+ */
+#define DEFAULT_RTS_THRESHOLD 2347U
+#define MIN_RTS_THRESHOLD 0U
+#define MAX_RTS_THRESHOLD 2347U
+#define MAX_MSDU_SIZE 2304U
+#define MAX_MPDU_SIZE 2346U
+#define DEFAULT_BEACON_INTERVAL 100U
+#define DEFAULT_SHORT_RETRY_LIMIT 7U
+#define DEFAULT_LONG_RETRY_LIMIT 4U
+
+struct il_rx_buf {
+ dma_addr_t page_dma;
+ struct page *page;
+ struct list_head list;
+};
+
+#define rxb_addr(r) page_address(r->page)
+
+/* defined below */
+struct il_device_cmd;
+
+struct il_cmd_meta {
+ /* only for SYNC commands, iff the reply skb is wanted */
+ struct il_host_cmd *source;
+ /*
+ * only for ASYNC commands
+ * (which is somewhat stupid -- look at common.c for instance
+ * which duplicates a bunch of code because the callback isn't
+ * invoked for SYNC commands, if it were and its result passed
+ * through it would be simpler...)
+ */
+ void (*callback) (struct il_priv *il, struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt);
+
+ /* The CMD_SIZE_HUGE flag bit indicates that the command
+ * structure is stored at the end of the shared queue memory. */
+ u32 flags;
+
+ DEFINE_DMA_UNMAP_ADDR(mapping);
+ DEFINE_DMA_UNMAP_LEN(len);
+};
+
+/*
+ * Generic queue structure
+ *
+ * Contains common data for Rx and Tx queues
+ */
+struct il_queue {
+ int n_bd; /* number of BDs in this queue */
+ int write_ptr; /* 1-st empty entry (idx) host_w */
+ int read_ptr; /* last used entry (idx) host_r */
+ /* use for monitoring and recovering the stuck queue */
+ dma_addr_t dma_addr; /* physical addr for BD's */
+ int n_win; /* safe queue win */
+ u32 id;
+ int low_mark; /* low watermark, resume queue if free
+ * space more than this */
+ int high_mark; /* high watermark, stop queue if free
+ * space less than this */
+};
+
+/* One for each TFD */
+struct il_tx_info {
+ struct sk_buff *skb;
+ struct il_rxon_context *ctx;
+};
+
+/**
+ * struct il_tx_queue - Tx Queue for DMA
+ * @q: generic Rx/Tx queue descriptor
+ * @bd: base of circular buffer of TFDs
+ * @cmd: array of command/TX buffer pointers
+ * @meta: array of meta data for each command/tx buffer
+ * @dma_addr_cmd: physical address of cmd/tx buffer array
+ * @txb: array of per-TFD driver data
+ * @time_stamp: time (in jiffies) of last read_ptr change
+ * @need_update: indicates need to update read/write idx
+ * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
+ *
+ * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
+ * descriptors) and required locking structures.
+ */
+#define TFD_TX_CMD_SLOTS 256
+#define TFD_CMD_SLOTS 32
+
+struct il_tx_queue {
+ struct il_queue q;
+ void *tfds;
+ struct il_device_cmd **cmd;
+ struct il_cmd_meta *meta;
+ struct il_tx_info *txb;
+ unsigned long time_stamp;
+ u8 need_update;
+ u8 sched_retry;
+ u8 active;
+ u8 swq_id;
+};
+
+/*
+ * EEPROM access time values:
+ *
+ * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
+ * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
+ * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
+ * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
+ */
+#define IL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
+
+#define IL_EEPROM_SEM_TIMEOUT 10 /* microseconds */
+#define IL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
+
+/*
+ * Regulatory channel usage flags in EEPROM struct il4965_eeprom_channel.flags.
+ *
+ * IBSS and/or AP operation is allowed *only* on those channels with
+ * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
+ * RADAR detection is not supported by the 4965 driver, but is a
+ * requirement for establishing a new network for legal operation on channels
+ * requiring RADAR detection or restricting ACTIVE scanning.
+ *
+ * NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
+ * It only indicates that 20 MHz channel use is supported; HT40 channel
+ * usage is indicated by a separate set of regulatory flags for each
+ * HT40 channel pair.
+ *
+ * NOTE: Using a channel inappropriately will result in a uCode error!
+ */
+#define IL_NUM_TX_CALIB_GROUPS 5
+enum {
+ EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
+ EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
+ /* Bit 2 Reserved */
+ EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
+ EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
+ EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
+ /* Bit 6 Reserved (was Narrow Channel) */
+ EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
+};
+
+/* SKU Capabilities */
+/* 3945 only */
+#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
+#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
+
+/* *regulatory* channel data format in eeprom, one for each channel.
+ * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
+struct il_eeprom_channel {
+ u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */
+ s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
+} __packed;
+
+/* 3945 Specific */
+#define EEPROM_3945_EEPROM_VERSION (0x2f)
+
+/* 4965 has two radio transmitters (and 3 radio receivers) */
+#define EEPROM_TX_POWER_TX_CHAINS (2)
+
+/* 4965 has room for up to 8 sets of txpower calibration data */
+#define EEPROM_TX_POWER_BANDS (8)
+
+/* 4965 factory calibration measures txpower gain settings for
+ * each of 3 target output levels */
+#define EEPROM_TX_POWER_MEASUREMENTS (3)
+
+/* 4965 Specific */
+/* 4965 driver does not work with txpower calibration version < 5 */
+#define EEPROM_4965_TX_POWER_VERSION (5)
+#define EEPROM_4965_EEPROM_VERSION (0x2f)
+#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
+#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
+#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
+#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
+
+/* 2.4 GHz */
+extern const u8 il_eeprom_band_1[14];
+
+/*
+ * factory calibration data for one txpower level, on one channel,
+ * measured on one of the 2 tx chains (radio transmitter and associated
+ * antenna). EEPROM contains:
+ *
+ * 1) Temperature (degrees Celsius) of device when measurement was made.
+ *
+ * 2) Gain table idx used to achieve the target measurement power.
+ * This refers to the "well-known" gain tables (see 4965.h).
+ *
+ * 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
+ *
+ * 4) RF power amplifier detector level measurement (not used).
+ */
+struct il_eeprom_calib_measure {
+ u8 temperature; /* Device temperature (Celsius) */
+ u8 gain_idx; /* Index into gain table */
+ u8 actual_pow; /* Measured RF output power, half-dBm */
+ s8 pa_det; /* Power amp detector level (not used) */
+} __packed;
+
+/*
+ * measurement set for one channel. EEPROM contains:
+ *
+ * 1) Channel number measured
+ *
+ * 2) Measurements for each of 3 power levels for each of 2 radio transmitters
+ * (a.k.a. "tx chains") (6 measurements altogether)
+ */
+struct il_eeprom_calib_ch_info {
+ u8 ch_num;
+ struct il_eeprom_calib_measure
+ measurements[EEPROM_TX_POWER_TX_CHAINS]
+ [EEPROM_TX_POWER_MEASUREMENTS];
+} __packed;
+
+/*
+ * txpower subband info.
+ *
+ * For each frequency subband, EEPROM contains the following:
+ *
+ * 1) First and last channels within range of the subband. "0" values
+ * indicate that this sample set is not being used.
+ *
+ * 2) Sample measurement sets for 2 channels close to the range endpoints.
+ */
+struct il_eeprom_calib_subband_info {
+ u8 ch_from; /* channel number of lowest channel in subband */
+ u8 ch_to; /* channel number of highest channel in subband */
+ struct il_eeprom_calib_ch_info ch1;
+ struct il_eeprom_calib_ch_info ch2;
+} __packed;
+
+/*
+ * txpower calibration info. EEPROM contains:
+ *
+ * 1) Factory-measured saturation power levels (maximum levels at which
+ * tx power amplifier can output a signal without too much distortion).
+ * There is one level for 2.4 GHz band and one for 5 GHz band. These
+ * values apply to all channels within each of the bands.
+ *
+ * 2) Factory-measured power supply voltage level. This is assumed to be
+ * constant (i.e. same value applies to all channels/bands) while the
+ * factory measurements are being made.
+ *
+ * 3) Up to 8 sets of factory-measured txpower calibration values.
+ * These are for different frequency ranges, since txpower gain
+ * characteristics of the analog radio circuitry vary with frequency.
+ *
+ * Not all sets need to be filled with data;
+ * struct il_eeprom_calib_subband_info contains range of channels
+ * (0 if unused) for each set of data.
+ */
+struct il_eeprom_calib_info {
+ u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */
+ u8 saturation_power52; /* half-dBm */
+ __le16 voltage; /* signed */
+ struct il_eeprom_calib_subband_info band_info[EEPROM_TX_POWER_BANDS];
+} __packed;
+
+/* General */
+#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
+#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
+#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
+#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
+#define EEPROM_VERSION (2*0x44) /* 2 bytes */
+#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */
+#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
+#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
+#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */
+#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */
+
+/* The following masks are to be applied on EEPROM_RADIO_CONFIG */
+#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */
+#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
+#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
+#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
+#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
+#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
+
+#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0
+#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1
+
+/*
+ * Per-channel regulatory data.
+ *
+ * Each channel that *might* be supported by iwl has a fixed location
+ * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
+ * txpower (MSB).
+ *
+ * Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
+ * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
+ *
+ * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
+ */
+#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
+#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
+#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
+
+/*
+ * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
+ * 5.0 GHz channels 7, 8, 11, 12, 16
+ * (4915-5080MHz) (none of these is ever supported)
+ */
+#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
+#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
+
+/*
+ * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
+ * (5170-5320MHz)
+ */
+#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
+#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
+
+/*
+ * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
+ * (5500-5700MHz)
+ */
+#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
+#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
+
+/*
+ * 5.7 GHz channels 145, 149, 153, 157, 161, 165
+ * (5725-5825MHz)
+ */
+#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
+#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
+
+/*
+ * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
+ *
+ * The channel listed is the center of the lower 20 MHz half of the channel.
+ * The overall center frequency is actually 2 channels (10 MHz) above that,
+ * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
+ * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
+ * and the overall HT40 channel width centers on channel 3.
+ *
+ * NOTE: The RXON command uses 20 MHz channel numbers to specify the
+ * control channel to which to tune. RXON also specifies whether the
+ * control channel is the upper or lower half of a HT40 channel.
+ *
+ * NOTE: 4965 does not support HT40 channels on 2.4 GHz.
+ */
+#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */
+
+/*
+ * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
+ * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
+ */
+#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */
+
+#define EEPROM_REGULATORY_BAND_NO_HT40 (0)
+
+struct il_eeprom_ops {
+ const u32 regulatory_bands[7];
+ int (*acquire_semaphore) (struct il_priv *il);
+ void (*release_semaphore) (struct il_priv *il);
+};
+
+int il_eeprom_init(struct il_priv *il);
+void il_eeprom_free(struct il_priv *il);
+const u8 *il_eeprom_query_addr(const struct il_priv *il, size_t offset);
+u16 il_eeprom_query16(const struct il_priv *il, size_t offset);
+int il_init_channel_map(struct il_priv *il);
+void il_free_channel_map(struct il_priv *il);
+const struct il_channel_info *il_get_channel_info(const struct il_priv *il,
+ enum ieee80211_band band,
+ u16 channel);
+
+#define IL_NUM_SCAN_RATES (2)
+
+struct il4965_channel_tgd_info {
+ u8 type;
+ s8 max_power;
+};
+
+struct il4965_channel_tgh_info {
+ s64 last_radar_time;
+};
+
+#define IL4965_MAX_RATE (33)
+
+struct il3945_clip_group {
+ /* maximum power level to prevent clipping for each rate, derived by
+ * us from this band's saturation power in EEPROM */
+ const s8 clip_powers[IL_MAX_RATES];
+};
+
+/* current Tx power values to use, one for each rate for each channel.
+ * requested power is limited by:
+ * -- regulatory EEPROM limits for this channel
+ * -- hardware capabilities (clip-powers)
+ * -- spectrum management
+ * -- user preference (e.g. iwconfig)
+ * when requested power is set, base power idx must also be set. */
+struct il3945_channel_power_info {
+ struct il3945_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_idx; /* actual (compenst'd) idx into gain table */
+ s8 base_power_idx; /* gain idx for power at factory temp. */
+ s8 requested_power; /* power (dBm) requested for this chnl/rate */
+};
+
+/* current scan Tx power values to use, one for each scan rate for each
+ * channel. */
+struct il3945_scan_power_info {
+ struct il3945_tx_power tpc; /* actual radio and DSP gain settings */
+ s8 power_table_idx; /* actual (compenst'd) idx into gain table */
+ s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
+};
+
+/*
+ * One for each channel, holds all channel setup data
+ * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
+ * with one another!
+ */
+struct il_channel_info {
+ struct il4965_channel_tgd_info tgd;
+ struct il4965_channel_tgh_info tgh;
+ struct il_eeprom_channel eeprom; /* EEPROM regulatory limit */
+ struct il_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
+ * HT40 channel */
+
+ u8 channel; /* channel number */
+ u8 flags; /* flags copied from EEPROM */
+ s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+ s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
+ s8 min_power; /* always 0 */
+ s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
+
+ u8 group_idx; /* 0-4, maps channel to group1/2/3/4/5 */
+ u8 band_idx; /* 0-4, maps channel to band1/2/3/4/5 */
+ enum ieee80211_band band;
+
+ /* HT40 channel info */
+ s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
+ u8 ht40_flags; /* flags copied from EEPROM */
+ u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
+
+ /* Radio/DSP gain settings for each "normal" data Tx rate.
+ * These include, in addition to RF and DSP gain, a few fields for
+ * remembering/modifying gain settings (idxes). */
+ struct il3945_channel_power_info power_info[IL4965_MAX_RATE];
+
+ /* Radio/DSP gain settings for each scan rate, for directed scans. */
+ struct il3945_scan_power_info scan_pwr_info[IL_NUM_SCAN_RATES];
+};
+
+#define IL_TX_FIFO_BK 0 /* shared */
+#define IL_TX_FIFO_BE 1
+#define IL_TX_FIFO_VI 2 /* shared */
+#define IL_TX_FIFO_VO 3
+#define IL_TX_FIFO_UNUSED -1
+
+/* Minimum number of queues. MAX_NUM is defined in hw specific files.
+ * Set the minimum to accommodate the 4 standard TX queues, 1 command
+ * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
+#define IL_MIN_NUM_QUEUES 10
+
+#define IL_DEFAULT_CMD_QUEUE_NUM 4
+
+#define IEEE80211_DATA_LEN 2304
+#define IEEE80211_4ADDR_LEN 30
+#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
+#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
+
+struct il_frame {
+ union {
+ struct ieee80211_hdr frame;
+ struct il_tx_beacon_cmd beacon;
+ u8 raw[IEEE80211_FRAME_LEN];
+ u8 cmd[360];
+ } u;
+ struct list_head list;
+};
+
+#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
+#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
+#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
+
+enum {
+ CMD_SYNC = 0,
+ CMD_SIZE_NORMAL = 0,
+ CMD_NO_SKB = 0,
+ CMD_SIZE_HUGE = (1 << 0),
+ CMD_ASYNC = (1 << 1),
+ CMD_WANT_SKB = (1 << 2),
+ CMD_MAPPED = (1 << 3),
+};
+
+#define DEF_CMD_PAYLOAD_SIZE 320
+
+/**
+ * struct il_device_cmd
+ *
+ * For allocation of the command and tx queues, this establishes the overall
+ * size of the largest command we send to uCode, except for a scan command
+ * (which is relatively huge; space is allocated separately).
+ */
+struct il_device_cmd {
+ struct il_cmd_header hdr; /* uCode API */
+ union {
+ u32 flags;
+ u8 val8;
+ u16 val16;
+ u32 val32;
+ struct il_tx_cmd tx;
+ u8 payload[DEF_CMD_PAYLOAD_SIZE];
+ } __packed cmd;
+} __packed;
+
+#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct il_device_cmd))
+
+struct il_host_cmd {
+ const void *data;
+ unsigned long reply_page;
+ void (*callback) (struct il_priv *il, struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt);
+ u32 flags;
+ u16 len;
+ u8 id;
+};
+
+#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
+#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
+#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
+
+/**
+ * struct il_rx_queue - Rx queue
+ * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
+ * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
+ * @read: Shared idx to newest available Rx buffer
+ * @write: Shared idx to oldest written Rx packet
+ * @free_count: Number of pre-allocated buffers in rx_free
+ * @rx_free: list of free SKBs for use
+ * @rx_used: List of Rx buffers with no SKB
+ * @need_update: flag to indicate we need to update read/write idx
+ * @rb_stts: driver's pointer to receive buffer status
+ * @rb_stts_dma: bus address of receive buffer status
+ *
+ * NOTE: rx_free and rx_used are used as a FIFO for il_rx_bufs
+ */
+struct il_rx_queue {
+ __le32 *bd;
+ dma_addr_t bd_dma;
+ struct il_rx_buf pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
+ struct il_rx_buf *queue[RX_QUEUE_SIZE];
+ u32 read;
+ u32 write;
+ u32 free_count;
+ u32 write_actual;
+ struct list_head rx_free;
+ struct list_head rx_used;
+ int need_update;
+ struct il_rb_status *rb_stts;
+ dma_addr_t rb_stts_dma;
+ spinlock_t lock;
+};
+
+#define IL_SUPPORTED_RATES_IE_LEN 8
+
+#define MAX_TID_COUNT 9
+
+#define IL_INVALID_RATE 0xFF
+#define IL_INVALID_VALUE -1
+
+/**
+ * struct il_ht_agg -- aggregation status while waiting for block-ack
+ * @txq_id: Tx queue used for Tx attempt
+ * @frame_count: # frames attempted by Tx command
+ * @wait_for_ba: Expect block-ack before next Tx reply
+ * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx win
+ * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx win
+ * @bitmap1: High order, one bit for each frame pending ACK in Tx win
+ * @rate_n_flags: Rate at which Tx was attempted
+ *
+ * If C_TX indicates that aggregation was attempted, driver must wait
+ * for block ack (N_COMPRESSED_BA). This struct stores tx reply info
+ * until block ack arrives.
+ */
+struct il_ht_agg {
+ u16 txq_id;
+ u16 frame_count;
+ u16 wait_for_ba;
+ u16 start_idx;
+ u64 bitmap;
+ u32 rate_n_flags;
+#define IL_AGG_OFF 0
+#define IL_AGG_ON 1
+#define IL_EMPTYING_HW_QUEUE_ADDBA 2
+#define IL_EMPTYING_HW_QUEUE_DELBA 3
+ u8 state;
+};
+
+struct il_tid_data {
+ u16 seq_number; /* 4965 only */
+ u16 tfds_in_queue;
+ struct il_ht_agg agg;
+};
+
+struct il_hw_key {
+ u32 cipher;
+ int keylen;
+ u8 keyidx;
+ u8 key[32];
+};
+
+union il_ht_rate_supp {
+ u16 rates;
+ struct {
+ u8 siso_rate;
+ u8 mimo_rate;
+ };
+};
+
+#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
+#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
+#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
+#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
+#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
+#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
+#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
+
+/*
+ * Maximal MPDU density for TX aggregation
+ * 4 - 2us density
+ * 5 - 4us density
+ * 6 - 8us density
+ * 7 - 16us density
+ */
+#define CFG_HT_MPDU_DENSITY_2USEC (0x4)
+#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
+#define CFG_HT_MPDU_DENSITY_8USEC (0x6)
+#define CFG_HT_MPDU_DENSITY_16USEC (0x7)
+#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
+#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
+#define CFG_HT_MPDU_DENSITY_MIN (0x1)
+
+struct il_ht_config {
+ bool single_chain_sufficient;
+ enum ieee80211_smps_mode smps; /* current smps mode */
+};
+
+/* QoS structures */
+struct il_qos_info {
+ int qos_active;
+ struct il_qosparam_cmd def_qos_parm;
+};
+
+/*
+ * Structure should be accessed with sta_lock held. When station addition
+ * is in progress (IL_STA_UCODE_INPROGRESS) it is possible to access only
+ * the commands (il_addsta_cmd and il_link_quality_cmd) without
+ * sta_lock held.
+ */
+struct il_station_entry {
+ struct il_addsta_cmd sta;
+ struct il_tid_data tid[MAX_TID_COUNT];
+ u8 used, ctxid;
+ struct il_hw_key keyinfo;
+ struct il_link_quality_cmd *lq;
+};
+
+struct il_station_priv_common {
+ struct il_rxon_context *ctx;
+ u8 sta_id;
+};
+
+/**
+ * struct il_vif_priv - driver's ilate per-interface information
+ *
+ * When mac80211 allocates a virtual interface, it can allocate
+ * space for us to put data into.
+ */
+struct il_vif_priv {
+ struct il_rxon_context *ctx;
+ u8 ibss_bssid_sta_id;
+};
+
+/* one for each uCode image (inst/data, boot/init/runtime) */
+struct fw_desc {
+ void *v_addr; /* access by driver */
+ dma_addr_t p_addr; /* access by card's busmaster DMA */
+ u32 len; /* bytes */
+};
+
+/* uCode file layout */
+struct il_ucode_header {
+ __le32 ver; /* major/minor/API/serial */
+ struct {
+ __le32 inst_size; /* bytes of runtime code */
+ __le32 data_size; /* bytes of runtime data */
+ __le32 init_size; /* bytes of init code */
+ __le32 init_data_size; /* bytes of init data */
+ __le32 boot_size; /* bytes of bootstrap code */
+ u8 data[0]; /* in same order as sizes */
+ } v1;
+};
+
+struct il4965_ibss_seq {
+ u8 mac[ETH_ALEN];
+ u16 seq_num;
+ u16 frag_num;
+ unsigned long packet_time;
+ struct list_head list;
+};
+
+struct il_sensitivity_ranges {
+ u16 min_nrg_cck;
+ u16 max_nrg_cck;
+
+ u16 nrg_th_cck;
+ u16 nrg_th_ofdm;
+
+ u16 auto_corr_min_ofdm;
+ u16 auto_corr_min_ofdm_mrc;
+ u16 auto_corr_min_ofdm_x1;
+ u16 auto_corr_min_ofdm_mrc_x1;
+
+ u16 auto_corr_max_ofdm;
+ u16 auto_corr_max_ofdm_mrc;
+ u16 auto_corr_max_ofdm_x1;
+ u16 auto_corr_max_ofdm_mrc_x1;
+
+ u16 auto_corr_max_cck;
+ u16 auto_corr_max_cck_mrc;
+ u16 auto_corr_min_cck;
+ u16 auto_corr_min_cck_mrc;
+
+ u16 barker_corr_th_min;
+ u16 barker_corr_th_min_mrc;
+ u16 nrg_th_cca;
+};
+
+#define KELVIN_TO_CELSIUS(x) ((x)-273)
+#define CELSIUS_TO_KELVIN(x) ((x)+273)
+
+/**
+ * struct il_hw_params
+ * @max_txq_num: Max # Tx queues supported
+ * @dma_chnl_num: Number of Tx DMA/FIFO channels
+ * @scd_bc_tbls_size: size of scheduler byte count tables
+ * @tfd_size: TFD size
+ * @tx/rx_chains_num: Number of TX/RX chains
+ * @valid_tx/rx_ant: usable antennas
+ * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
+ * @max_rxq_log: Log-base-2 of max_rxq_size
+ * @rx_page_order: Rx buffer page order
+ * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
+ * @max_stations:
+ * @ht40_channel: is 40MHz width possible in band 2.4
+ * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
+ * @sw_crypto: 0 for hw, 1 for sw
+ * @max_xxx_size: for ucode uses
+ * @ct_kill_threshold: temperature threshold
+ * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
+ * @struct il_sensitivity_ranges: range of sensitivity values
+ */
+struct il_hw_params {
+ u8 max_txq_num;
+ u8 dma_chnl_num;
+ u16 scd_bc_tbls_size;
+ u32 tfd_size;
+ u8 tx_chains_num;
+ u8 rx_chains_num;
+ u8 valid_tx_ant;
+ u8 valid_rx_ant;
+ u16 max_rxq_size;
+ u16 max_rxq_log;
+ u32 rx_page_order;
+ u32 rx_wrt_ptr_reg;
+ u8 max_stations;
+ u8 ht40_channel;
+ u8 max_beacon_itrvl; /* in 1024 ms */
+ u32 max_inst_size;
+ u32 max_data_size;
+ u32 max_bsm_size;
+ u32 ct_kill_threshold; /* value in hw-dependent units */
+ u16 beacon_time_tsf_bits;
+ const struct il_sensitivity_ranges *sens;
+};
+
+/******************************************************************************
+ *
+ * Functions implemented in core module which are forward declared here
+ * for use by iwl-[4-5].c
+ *
+ * NOTE: The implementation of these functions are not hardware specific
+ * which is why they are in the core module files.
+ *
+ * Naming convention --
+ * il_ <-- Is part of iwlwifi
+ * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
+ * il4965_bg_ <-- Called from work queue context
+ * il4965_mac_ <-- mac80211 callback
+ *
+ ****************************************************************************/
+extern void il4965_update_chain_flags(struct il_priv *il);
+extern const u8 il_bcast_addr[ETH_ALEN];
+extern int il_queue_space(const struct il_queue *q);
+static inline int
+il_queue_used(const struct il_queue *q, int i)
+{
+ return q->write_ptr >= q->read_ptr ? (i >= q->read_ptr &&
+ i < q->write_ptr) : !(i <
+ q->read_ptr
+ && i >=
+ q->
+ write_ptr);
+}
+
+static inline u8
+il_get_cmd_idx(struct il_queue *q, u32 idx, int is_huge)
+{
+ /*
+ * This is for init calibration result and scan command which
+ * required buffer > TFD_MAX_PAYLOAD_SIZE,
+ * the big buffer at end of command array
+ */
+ if (is_huge)
+ return q->n_win; /* must be power of 2 */
+
+ /* Otherwise, use normal size buffers */
+ return idx & (q->n_win - 1);
+}
+
+struct il_dma_ptr {
+ dma_addr_t dma;
+ void *addr;
+ size_t size;
+};
+
+#define IL_OPERATION_MODE_AUTO 0
+#define IL_OPERATION_MODE_HT_ONLY 1
+#define IL_OPERATION_MODE_MIXED 2
+#define IL_OPERATION_MODE_20MHZ 3
+
+#define IL_TX_CRC_SIZE 4
+#define IL_TX_DELIMITER_SIZE 4
+
+#define TX_POWER_IL_ILLEGAL_VOLTAGE -10000
+
+/* Sensitivity and chain noise calibration */
+#define INITIALIZATION_VALUE 0xFFFF
+#define IL4965_CAL_NUM_BEACONS 20
+#define IL_CAL_NUM_BEACONS 16
+#define MAXIMUM_ALLOWED_PATHLOSS 15
+
+#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
+
+#define MAX_FA_OFDM 50
+#define MIN_FA_OFDM 5
+#define MAX_FA_CCK 50
+#define MIN_FA_CCK 5
+
+#define AUTO_CORR_STEP_OFDM 1
+
+#define AUTO_CORR_STEP_CCK 3
+#define AUTO_CORR_MAX_TH_CCK 160
+
+#define NRG_DIFF 2
+#define NRG_STEP_CCK 2
+#define NRG_MARGIN 8
+#define MAX_NUMBER_CCK_NO_FA 100
+
+#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
+
+#define CHAIN_A 0
+#define CHAIN_B 1
+#define CHAIN_C 2
+#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
+#define ALL_BAND_FILTER 0xFF00
+#define IN_BAND_FILTER 0xFF
+#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
+
+#define NRG_NUM_PREV_STAT_L 20
+#define NUM_RX_CHAINS 3
+
+enum il4965_false_alarm_state {
+ IL_FA_TOO_MANY = 0,
+ IL_FA_TOO_FEW = 1,
+ IL_FA_GOOD_RANGE = 2,
+};
+
+enum il4965_chain_noise_state {
+ IL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
+ IL_CHAIN_NOISE_ACCUMULATE,
+ IL_CHAIN_NOISE_CALIBRATED,
+ IL_CHAIN_NOISE_DONE,
+};
+
+enum il4965_calib_enabled_state {
+ IL_CALIB_DISABLED = 0, /* must be 0 */
+ IL_CALIB_ENABLED = 1,
+};
+
+/*
+ * enum il_calib
+ * defines the order in which results of initial calibrations
+ * should be sent to the runtime uCode
+ */
+enum il_calib {
+ IL_CALIB_MAX,
+};
+
+/* Opaque calibration results */
+struct il_calib_result {
+ void *buf;
+ size_t buf_len;
+};
+
+enum ucode_type {
+ UCODE_NONE = 0,
+ UCODE_INIT,
+ UCODE_RT
+};
+
+/* Sensitivity calib data */
+struct il_sensitivity_data {
+ u32 auto_corr_ofdm;
+ u32 auto_corr_ofdm_mrc;
+ u32 auto_corr_ofdm_x1;
+ u32 auto_corr_ofdm_mrc_x1;
+ u32 auto_corr_cck;
+ u32 auto_corr_cck_mrc;
+
+ u32 last_bad_plcp_cnt_ofdm;
+ u32 last_fa_cnt_ofdm;
+ u32 last_bad_plcp_cnt_cck;
+ u32 last_fa_cnt_cck;
+
+ u32 nrg_curr_state;
+ u32 nrg_prev_state;
+ u32 nrg_value[10];
+ u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
+ u32 nrg_silence_ref;
+ u32 nrg_energy_idx;
+ u32 nrg_silence_idx;
+ u32 nrg_th_cck;
+ s32 nrg_auto_corr_silence_diff;
+ u32 num_in_cck_no_fa;
+ u32 nrg_th_ofdm;
+
+ u16 barker_corr_th_min;
+ u16 barker_corr_th_min_mrc;
+ u16 nrg_th_cca;
+};
+
+/* Chain noise (differential Rx gain) calib data */
+struct il_chain_noise_data {
+ u32 active_chains;
+ u32 chain_noise_a;
+ u32 chain_noise_b;
+ u32 chain_noise_c;
+ u32 chain_signal_a;
+ u32 chain_signal_b;
+ u32 chain_signal_c;
+ u16 beacon_count;
+ u8 disconn_array[NUM_RX_CHAINS];
+ u8 delta_gain_code[NUM_RX_CHAINS];
+ u8 radio_write;
+ u8 state;
+};
+
+#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
+#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
+
+#define IL_TRAFFIC_ENTRIES (256)
+#define IL_TRAFFIC_ENTRY_SIZE (64)
+
+enum {
+ MEASUREMENT_READY = (1 << 0),
+ MEASUREMENT_ACTIVE = (1 << 1),
+};
+
+/* interrupt stats */
+struct isr_stats {
+ u32 hw;
+ u32 sw;
+ u32 err_code;
+ u32 sch;
+ u32 alive;
+ u32 rfkill;
+ u32 ctkill;
+ u32 wakeup;
+ u32 rx;
+ u32 handlers[IL_CN_MAX];
+ u32 tx;
+ u32 unhandled;
+};
+
+/* management stats */
+enum il_mgmt_stats {
+ MANAGEMENT_ASSOC_REQ = 0,
+ MANAGEMENT_ASSOC_RESP,
+ MANAGEMENT_REASSOC_REQ,
+ MANAGEMENT_REASSOC_RESP,
+ MANAGEMENT_PROBE_REQ,
+ MANAGEMENT_PROBE_RESP,
+ MANAGEMENT_BEACON,
+ MANAGEMENT_ATIM,
+ MANAGEMENT_DISASSOC,
+ MANAGEMENT_AUTH,
+ MANAGEMENT_DEAUTH,
+ MANAGEMENT_ACTION,
+ MANAGEMENT_MAX,
+};
+/* control stats */
+enum il_ctrl_stats {
+ CONTROL_BACK_REQ = 0,
+ CONTROL_BACK,
+ CONTROL_PSPOLL,
+ CONTROL_RTS,
+ CONTROL_CTS,
+ CONTROL_ACK,
+ CONTROL_CFEND,
+ CONTROL_CFENDACK,
+ CONTROL_MAX,
+};
+
+struct traffic_stats {
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ u32 mgmt[MANAGEMENT_MAX];
+ u32 ctrl[CONTROL_MAX];
+ u32 data_cnt;
+ u64 data_bytes;
+#endif
+};
+
+/*
+ * host interrupt timeout value
+ * used with setting interrupt coalescing timer
+ * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
+ *
+ * default interrupt coalescing timer is 64 x 32 = 2048 usecs
+ * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
+ */
+#define IL_HOST_INT_TIMEOUT_MAX (0xFF)
+#define IL_HOST_INT_TIMEOUT_DEF (0x40)
+#define IL_HOST_INT_TIMEOUT_MIN (0x0)
+#define IL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
+#define IL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
+#define IL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
+
+#define IL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
+
+/* TX queue watchdog timeouts in mSecs */
+#define IL_DEF_WD_TIMEOUT (2000)
+#define IL_LONG_WD_TIMEOUT (10000)
+#define IL_MAX_WD_TIMEOUT (120000)
+
+struct il_force_reset {
+ int reset_request_count;
+ int reset_success_count;
+ int reset_reject_count;
+ unsigned long reset_duration;
+ unsigned long last_force_reset_jiffies;
+};
+
+/* extend beacon time format bit shifting */
+/*
+ * for _3945 devices
+ * bits 31:24 - extended
+ * bits 23:0 - interval
+ */
+#define IL3945_EXT_BEACON_TIME_POS 24
+/*
+ * for _4965 devices
+ * bits 31:22 - extended
+ * bits 21:0 - interval
+ */
+#define IL4965_EXT_BEACON_TIME_POS 22
+
+struct il_rxon_context {
+ struct ieee80211_vif *vif;
+
+ const u8 *ac_to_fifo;
+ const u8 *ac_to_queue;
+ u8 mcast_queue;
+
+ /*
+ * We could use the vif to indicate active, but we
+ * also need it to be active during disabling when
+ * we already removed the vif for type setting.
+ */
+ bool always_active, is_active;
+
+ bool ht_need_multiple_chains;
+
+ int ctxid;
+
+ u32 interface_modes, exclusive_interface_modes;
+ u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
+
+ /*
+ * We declare this const so it can only be
+ * changed via explicit cast within the
+ * routines that actually update the physical
+ * hardware.
+ */
+ const struct il_rxon_cmd active;
+ struct il_rxon_cmd staging;
+
+ struct il_rxon_time_cmd timing;
+
+ struct il_qos_info qos_data;
+
+ u8 bcast_sta_id, ap_sta_id;
+
+ u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
+ u8 qos_cmd;
+ u8 wep_key_cmd;
+
+ struct il_wep_key wep_keys[WEP_KEYS_MAX];
+ u8 key_mapping_keys;
+
+ __le32 station_flags;
+
+ struct {
+ bool non_gf_sta_present;
+ u8 protection;
+ bool enabled, is_40mhz;
+ u8 extension_chan_offset;
+ } ht;
+};
+
+struct il_power_mgr {
+ struct il_powertable_cmd sleep_cmd;
+ struct il_powertable_cmd sleep_cmd_next;
+ int debug_sleep_level_override;
+ bool pci_pm;
+};
+
+struct il_priv {
+
+ /* ieee device used by generic ieee processing code */
+ struct ieee80211_hw *hw;
+ struct ieee80211_channel *ieee_channels;
+ struct ieee80211_rate *ieee_rates;
+ struct il_cfg *cfg;
+
+ /* temporary frame storage list */
+ struct list_head free_frames;
+ int frames_count;
+
+ enum ieee80211_band band;
+ int alloc_rxb_page;
+
+ void (*handlers[IL_CN_MAX]) (struct il_priv *il,
+ struct il_rx_buf *rxb);
+
+ struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
+
+ /* spectrum measurement report caching */
+ struct il_spectrum_notification measure_report;
+ u8 measurement_status;
+
+ /* ucode beacon time */
+ u32 ucode_beacon_time;
+ int missed_beacon_threshold;
+
+ /* track IBSS manager (last beacon) status */
+ u32 ibss_manager;
+
+ /* force reset */
+ struct il_force_reset force_reset;
+
+ /* we allocate array of il_channel_info for NIC's valid channels.
+ * Access via channel # using indirect idx array */
+ struct il_channel_info *channel_info; /* channel info array */
+ u8 channel_count; /* # of channels */
+
+ /* thermal calibration */
+ s32 temperature; /* degrees Kelvin */
+ s32 last_temperature;
+
+ /* init calibration results */
+ struct il_calib_result calib_results[IL_CALIB_MAX];
+
+ /* Scan related variables */
+ unsigned long scan_start;
+ unsigned long scan_start_tsf;
+ void *scan_cmd;
+ enum ieee80211_band scan_band;
+ struct cfg80211_scan_request *scan_request;
+ struct ieee80211_vif *scan_vif;
+ u8 scan_tx_ant[IEEE80211_NUM_BANDS];
+ u8 mgmt_tx_ant;
+
+ /* spinlock */
+ spinlock_t lock; /* protect general shared data */
+ spinlock_t hcmd_lock; /* protect hcmd */
+ spinlock_t reg_lock; /* protect hw register access */
+ struct mutex mutex;
+
+ /* basic pci-network driver stuff */
+ struct pci_dev *pci_dev;
+
+ /* pci hardware address support */
+ void __iomem *hw_base;
+ u32 hw_rev;
+ u32 hw_wa_rev;
+ u8 rev_id;
+
+ /* command queue number */
+ u8 cmd_queue;
+
+ /* max number of station keys */
+ u8 sta_key_max_num;
+
+ /* EEPROM MAC addresses */
+ struct mac_address addresses[1];
+
+ /* uCode images, save to reload in case of failure */
+ int fw_idx; /* firmware we're trying to load */
+ u32 ucode_ver; /* version of ucode, copy of
+ il_ucode.ver */
+ struct fw_desc ucode_code; /* runtime inst */
+ struct fw_desc ucode_data; /* runtime data original */
+ struct fw_desc ucode_data_backup; /* runtime data save/restore */
+ struct fw_desc ucode_init; /* initialization inst */
+ struct fw_desc ucode_init_data; /* initialization data */
+ struct fw_desc ucode_boot; /* bootstrap inst */
+ enum ucode_type ucode_type;
+ u8 ucode_write_complete; /* the image write is complete */
+ char firmware_name[25];
+
+ struct il_rxon_context ctx;
+
+ __le16 switch_channel;
+
+ /* 1st responses from initialize and runtime uCode images.
+ * _4965's initialize alive response contains some calibration data. */
+ struct il_init_alive_resp card_alive_init;
+ struct il_alive_resp card_alive;
+
+ u16 active_rate;
+
+ u8 start_calib;
+ struct il_sensitivity_data sensitivity_data;
+ struct il_chain_noise_data chain_noise_data;
+ __le16 sensitivity_tbl[HD_TBL_SIZE];
+
+ struct il_ht_config current_ht_config;
+
+ /* Rate scaling data */
+ u8 retry_rate;
+
+ wait_queue_head_t wait_command_queue;
+
+ int activity_timer_active;
+
+ /* Rx and Tx DMA processing queues */
+ struct il_rx_queue rxq;
+ struct il_tx_queue *txq;
+ unsigned long txq_ctx_active_msk;
+ struct il_dma_ptr kw; /* keep warm address */
+ struct il_dma_ptr scd_bc_tbls;
+
+ u32 scd_base_addr; /* scheduler sram base address */
+
+ unsigned long status;
+
+ /* counts mgmt, ctl, and data packets */
+ struct traffic_stats tx_stats;
+ struct traffic_stats rx_stats;
+
+ /* counts interrupts */
+ struct isr_stats isr_stats;
+
+ struct il_power_mgr power_data;
+
+ /* context information */
+ u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
+
+ /* station table variables */
+
+ /* Note: if lock and sta_lock are needed, lock must be acquired first */
+ spinlock_t sta_lock;
+ int num_stations;
+ struct il_station_entry stations[IL_STATION_COUNT];
+ unsigned long ucode_key_table;
+
+ /* queue refcounts */
+#define IL_MAX_HW_QUEUES 32
+ unsigned long queue_stopped[BITS_TO_LONGS(IL_MAX_HW_QUEUES)];
+ /* for each AC */
+ atomic_t queue_stop_count[4];
+
+ /* Indication if ieee80211_ops->open has been called */
+ u8 is_open;
+
+ u8 mac80211_registered;
+
+ /* eeprom -- this is in the card's little endian byte order */
+ u8 *eeprom;
+ struct il_eeprom_calib_info *calib_info;
+
+ enum nl80211_iftype iw_mode;
+
+ /* Last Rx'd beacon timestamp */
+ u64 timestamp;
+
+ union {
+#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
+ struct {
+ void *shared_virt;
+ dma_addr_t shared_phys;
+
+ struct delayed_work thermal_periodic;
+ struct delayed_work rfkill_poll;
+
+ struct il3945_notif_stats stats;
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ struct il3945_notif_stats accum_stats;
+ struct il3945_notif_stats delta_stats;
+ struct il3945_notif_stats max_delta;
+#endif
+
+ u32 sta_supp_rates;
+ int last_rx_rssi; /* From Rx packet stats */
+
+ /* Rx'd packet timing information */
+ u32 last_beacon_time;
+ u64 last_tsf;
+
+ /*
+ * each calibration channel group in the
+ * EEPROM has a derived clip setting for
+ * each rate.
+ */
+ const struct il3945_clip_group clip_groups[5];
+
+ } _3945;
+#endif
+#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE)
+ struct {
+ struct il_rx_phy_res last_phy_res;
+ bool last_phy_res_valid;
+
+ struct completion firmware_loading_complete;
+
+ /*
+ * chain noise reset and gain commands are the
+ * two extra calibration commands follows the standard
+ * phy calibration commands
+ */
+ u8 phy_calib_chain_noise_reset_cmd;
+ u8 phy_calib_chain_noise_gain_cmd;
+
+ struct il_notif_stats stats;
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ struct il_notif_stats accum_stats;
+ struct il_notif_stats delta_stats;
+ struct il_notif_stats max_delta;
+#endif
+
+ } _4965;
+#endif
+ };
+
+ struct il_hw_params hw_params;
+
+ u32 inta_mask;
+
+ struct workqueue_struct *workqueue;
+
+ struct work_struct restart;
+ struct work_struct scan_completed;
+ struct work_struct rx_replenish;
+ struct work_struct abort_scan;
+
+ struct il_rxon_context *beacon_ctx;
+ struct sk_buff *beacon_skb;
+
+ struct work_struct tx_flush;
+
+ struct tasklet_struct irq_tasklet;
+
+ struct delayed_work init_alive_start;
+ struct delayed_work alive_start;
+ struct delayed_work scan_check;
+
+ /* TX Power */
+ s8 tx_power_user_lmt;
+ s8 tx_power_device_lmt;
+ s8 tx_power_next;
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+ /* debugging info */
+ u32 debug_level; /* per device debugging will override global
+ il_debug_level if set */
+#endif /* CONFIG_IWLEGACY_DEBUG */
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ /* debugfs */
+ u16 tx_traffic_idx;
+ u16 rx_traffic_idx;
+ u8 *tx_traffic;
+ u8 *rx_traffic;
+ struct dentry *debugfs_dir;
+ u32 dbgfs_sram_offset, dbgfs_sram_len;
+ bool disable_ht40;
+#endif /* CONFIG_IWLEGACY_DEBUGFS */
+
+ struct work_struct txpower_work;
+ u32 disable_sens_cal;
+ u32 disable_chain_noise_cal;
+ u32 disable_tx_power_cal;
+ struct work_struct run_time_calib_work;
+ struct timer_list stats_periodic;
+ struct timer_list watchdog;
+ bool hw_ready;
+
+ struct led_classdev led;
+ unsigned long blink_on, blink_off;
+ bool led_registered;
+}; /*il_priv */
+
+static inline void
+il_txq_ctx_activate(struct il_priv *il, int txq_id)
+{
+ set_bit(txq_id, &il->txq_ctx_active_msk);
+}
+
+static inline void
+il_txq_ctx_deactivate(struct il_priv *il, int txq_id)
+{
+ clear_bit(txq_id, &il->txq_ctx_active_msk);
+}
+
+static inline struct ieee80211_hdr *
+il_tx_queue_get_hdr(struct il_priv *il, int txq_id, int idx)
+{
+ if (il->txq[txq_id].txb[idx].skb)
+ return (struct ieee80211_hdr *)il->txq[txq_id].txb[idx].skb->
+ data;
+ return NULL;
+}
+
+static inline struct il_rxon_context *
+il_rxon_ctx_from_vif(struct ieee80211_vif *vif)
+{
+ struct il_vif_priv *vif_priv = (void *)vif->drv_priv;
+
+ return vif_priv->ctx;
+}
+
+#define for_each_context(il, _ctx) \
+ for (_ctx = &il->ctx; _ctx == &il->ctx; _ctx++)
+
+static inline int
+il_is_associated(struct il_priv *il)
+{
+ return (il->ctx.active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int
+il_is_any_associated(struct il_priv *il)
+{
+ return il_is_associated(il);
+}
+
+static inline int
+il_is_associated_ctx(struct il_rxon_context *ctx)
+{
+ return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
+}
+
+static inline int
+il_is_channel_valid(const struct il_channel_info *ch_info)
+{
+ if (ch_info == NULL)
+ return 0;
+ return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
+}
+
+static inline int
+il_is_channel_radar(const struct il_channel_info *ch_info)
+{
+ return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
+}
+
+static inline u8
+il_is_channel_a_band(const struct il_channel_info *ch_info)
+{
+ return ch_info->band == IEEE80211_BAND_5GHZ;
+}
+
+static inline int
+il_is_channel_passive(const struct il_channel_info *ch)
+{
+ return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
+}
+
+static inline int
+il_is_channel_ibss(const struct il_channel_info *ch)
+{
+ return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0;
+}
+
+static inline void
+__il_free_pages(struct il_priv *il, struct page *page)
+{
+ __free_pages(page, il->hw_params.rx_page_order);
+ il->alloc_rxb_page--;
+}
+
+static inline void
+il_free_pages(struct il_priv *il, unsigned long page)
+{
+ free_pages(page, il->hw_params.rx_page_order);
+ il->alloc_rxb_page--;
+}
+
+#define IWLWIFI_VERSION "in-tree:"
+#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
+#define DRV_AUTHOR "<ilw@linux.intel.com>"
+
+#define IL_PCI_DEVICE(dev, subdev, cfg) \
+ .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
+ .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
+ .driver_data = (kernel_ulong_t)&(cfg)
+
+#define TIME_UNIT 1024
+
+#define IL_SKU_G 0x1
+#define IL_SKU_A 0x2
+#define IL_SKU_N 0x8
+
+#define IL_CMD(x) case x: return #x
+
+/* Size of one Rx buffer in host DRAM */
+#define IL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */
+#define IL_RX_BUF_SIZE_4K (4 * 1024)
+#define IL_RX_BUF_SIZE_8K (8 * 1024)
+
+struct il_hcmd_ops {
+ int (*rxon_assoc) (struct il_priv *il, struct il_rxon_context *ctx);
+ int (*commit_rxon) (struct il_priv *il, struct il_rxon_context *ctx);
+ void (*set_rxon_chain) (struct il_priv *il,
+ struct il_rxon_context *ctx);
+};
+
+struct il_hcmd_utils_ops {
+ u16(*get_hcmd_size) (u8 cmd_id, u16 len);
+ u16(*build_addsta_hcmd) (const struct il_addsta_cmd *cmd, u8 *data);
+ int (*request_scan) (struct il_priv *il, struct ieee80211_vif *vif);
+ void (*post_scan) (struct il_priv *il);
+};
+
+struct il_apm_ops {
+ int (*init) (struct il_priv *il);
+ void (*config) (struct il_priv *il);
+};
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+struct il_debugfs_ops {
+ ssize_t(*rx_stats_read) (struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ ssize_t(*tx_stats_read) (struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos);
+ ssize_t(*general_stats_read) (struct file *file,
+ char __user *user_buf, size_t count,
+ loff_t *ppos);
+};
+#endif
+
+struct il_temp_ops {
+ void (*temperature) (struct il_priv *il);
+};
+
+struct il_lib_ops {
+ /* set hw dependent parameters */
+ int (*set_hw_params) (struct il_priv *il);
+ /* Handling TX */
+ void (*txq_update_byte_cnt_tbl) (struct il_priv *il,
+ struct il_tx_queue *txq,
+ u16 byte_cnt);
+ int (*txq_attach_buf_to_tfd) (struct il_priv *il,
+ struct il_tx_queue *txq, dma_addr_t addr,
+ u16 len, u8 reset, u8 pad);
+ void (*txq_free_tfd) (struct il_priv *il, struct il_tx_queue *txq);
+ int (*txq_init) (struct il_priv *il, struct il_tx_queue *txq);
+ /* setup Rx handler */
+ void (*handler_setup) (struct il_priv *il);
+ /* alive notification after init uCode load */
+ void (*init_alive_start) (struct il_priv *il);
+ /* check validity of rtc data address */
+ int (*is_valid_rtc_data_addr) (u32 addr);
+ /* 1st ucode load */
+ int (*load_ucode) (struct il_priv *il);
+
+ void (*dump_nic_error_log) (struct il_priv *il);
+ int (*dump_fh) (struct il_priv *il, char **buf, bool display);
+ int (*set_channel_switch) (struct il_priv *il,
+ struct ieee80211_channel_switch *ch_switch);
+ /* power management */
+ struct il_apm_ops apm_ops;
+
+ /* power */
+ int (*send_tx_power) (struct il_priv *il);
+ void (*update_chain_flags) (struct il_priv *il);
+
+ /* eeprom operations */
+ struct il_eeprom_ops eeprom_ops;
+
+ /* temperature */
+ struct il_temp_ops temp_ops;
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+ struct il_debugfs_ops debugfs_ops;
+#endif
+
+};
+
+struct il_led_ops {
+ int (*cmd) (struct il_priv *il, struct il_led_cmd *led_cmd);
+};
+
+struct il_legacy_ops {
+ void (*post_associate) (struct il_priv *il);
+ void (*config_ap) (struct il_priv *il);
+ /* station management */
+ int (*update_bcast_stations) (struct il_priv *il);
+ int (*manage_ibss_station) (struct il_priv *il,
+ struct ieee80211_vif *vif, bool add);
+};
+
+struct il_ops {
+ const struct il_lib_ops *lib;
+ const struct il_hcmd_ops *hcmd;
+ const struct il_hcmd_utils_ops *utils;
+ const struct il_led_ops *led;
+ const struct il_nic_ops *nic;
+ const struct il_legacy_ops *legacy;
+ const struct ieee80211_ops *ieee80211_ops;
+};
+
+struct il_mod_params {
+ int sw_crypto; /* def: 0 = using hardware encryption */
+ int disable_hw_scan; /* def: 0 = use h/w scan */
+ int num_of_queues; /* def: HW dependent */
+ int disable_11n; /* def: 0 = 11n capabilities enabled */
+ int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
+ int antenna; /* def: 0 = both antennas (use diversity) */
+ int restart_fw; /* def: 1 = restart firmware */
+};
+
+/*
+ * @led_compensation: compensate on the led on/off time per HW according
+ * to the deviation to achieve the desired led frequency.
+ * The detail algorithm is described in common.c
+ * @chain_noise_num_beacons: number of beacons used to compute chain noise
+ * @wd_timeout: TX queues watchdog timeout
+ * @temperature_kelvin: temperature report by uCode in kelvin
+ * @ucode_tracing: support ucode continuous tracing
+ * @sensitivity_calib_by_driver: driver has the capability to perform
+ * sensitivity calibration operation
+ * @chain_noise_calib_by_driver: driver has the capability to perform
+ * chain noise calibration operation
+ */
+struct il_base_params {
+ int eeprom_size;
+ int num_of_queues; /* def: HW dependent */
+ int num_of_ampdu_queues; /* def: HW dependent */
+ /* for il_apm_init() */
+ u32 pll_cfg_val;
+ bool set_l0s;
+ bool use_bsm;
+
+ u16 led_compensation;
+ int chain_noise_num_beacons;
+ unsigned int wd_timeout;
+ bool temperature_kelvin;
+ const bool ucode_tracing;
+ const bool sensitivity_calib_by_driver;
+ const bool chain_noise_calib_by_driver;
+};
+
+#define IL_LED_SOLID 11
+#define IL_DEF_LED_INTRVL cpu_to_le32(1000)
+
+#define IL_LED_ACTIVITY (0<<1)
+#define IL_LED_LINK (1<<1)
+
+/*
+ * LED mode
+ * IL_LED_DEFAULT: use device default
+ * IL_LED_RF_STATE: turn LED on/off based on RF state
+ * LED ON = RF ON
+ * LED OFF = RF OFF
+ * IL_LED_BLINK: adjust led blink rate based on blink table
+ */
+enum il_led_mode {
+ IL_LED_DEFAULT,
+ IL_LED_RF_STATE,
+ IL_LED_BLINK,
+};
+
+void il_leds_init(struct il_priv *il);
+void il_leds_exit(struct il_priv *il);
+
+/**
+ * struct il_cfg
+ * @fw_name_pre: Firmware filename prefix. The api version and extension
+ * (.ucode) will be added to filename before loading from disk. The
+ * filename is constructed as fw_name_pre<api>.ucode.
+ * @ucode_api_max: Highest version of uCode API supported by driver.
+ * @ucode_api_min: Lowest version of uCode API supported by driver.
+ * @scan_antennas: available antenna for scan operation
+ * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
+ *
+ * We enable the driver to be backward compatible wrt API version. The
+ * driver specifies which APIs it supports (with @ucode_api_max being the
+ * highest and @ucode_api_min the lowest). Firmware will only be loaded if
+ * it has a supported API version. The firmware's API version will be
+ * stored in @il_priv, enabling the driver to make runtime changes based
+ * on firmware version used.
+ *
+ * For example,
+ * if (IL_UCODE_API(il->ucode_ver) >= 2) {
+ * Driver interacts with Firmware API version >= 2.
+ * } else {
+ * Driver interacts with Firmware API version 1.
+ * }
+ *
+ * The ideal usage of this infrastructure is to treat a new ucode API
+ * release as a new hardware revision. That is, through utilizing the
+ * il_hcmd_utils_ops etc. we accommodate different command structures
+ * and flows between hardware versions as well as their API
+ * versions.
+ *
+ */
+struct il_cfg {
+ /* params specific to an individual device within a device family */
+ const char *name;
+ const char *fw_name_pre;
+ const unsigned int ucode_api_max;
+ const unsigned int ucode_api_min;
+ u8 valid_tx_ant;
+ u8 valid_rx_ant;
+ unsigned int sku;
+ u16 eeprom_ver;
+ u16 eeprom_calib_ver;
+ const struct il_ops *ops;
+ /* module based parameters which can be set from modprobe cmd */
+ const struct il_mod_params *mod_params;
+ /* params not likely to change within a device family */
+ struct il_base_params *base_params;
+ /* params likely to change within a device family */
+ u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
+ enum il_led_mode led_mode;
+};
+
+/***************************
+ * L i b *
+ ***************************/
+
+struct ieee80211_hw *il_alloc_all(struct il_cfg *cfg);
+int il_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ u16 queue, const struct ieee80211_tx_queue_params *params);
+int il_mac_tx_last_beacon(struct ieee80211_hw *hw);
+
+void il_set_rxon_hwcrypto(struct il_priv *il, struct il_rxon_context *ctx,
+ int hw_decrypt);
+int il_check_rxon_cmd(struct il_priv *il, struct il_rxon_context *ctx);
+int il_full_rxon_required(struct il_priv *il, struct il_rxon_context *ctx);
+int il_set_rxon_channel(struct il_priv *il, struct ieee80211_channel *ch,
+ struct il_rxon_context *ctx);
+void il_set_flags_for_band(struct il_priv *il, struct il_rxon_context *ctx,
+ enum ieee80211_band band, struct ieee80211_vif *vif);
+u8 il_get_single_channel_number(struct il_priv *il, enum ieee80211_band band);
+void il_set_rxon_ht(struct il_priv *il, struct il_ht_config *ht_conf);
+bool il_is_ht40_tx_allowed(struct il_priv *il, struct il_rxon_context *ctx,
+ struct ieee80211_sta_ht_cap *ht_cap);
+void il_connection_init_rx_config(struct il_priv *il,
+ struct il_rxon_context *ctx);
+void il_set_rate(struct il_priv *il);
+int il_set_decrypted_flag(struct il_priv *il, struct ieee80211_hdr *hdr,
+ u32 decrypt_res, struct ieee80211_rx_status *stats);
+void il_irq_handle_error(struct il_priv *il);
+int il_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+void il_mac_remove_interface(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif);
+int il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ enum nl80211_iftype newtype, bool newp2p);
+int il_alloc_txq_mem(struct il_priv *il);
+void il_txq_mem(struct il_priv *il);
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+int il_alloc_traffic_mem(struct il_priv *il);
+void il_free_traffic_mem(struct il_priv *il);
+void il_reset_traffic_log(struct il_priv *il);
+void il_dbg_log_tx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header);
+void il_dbg_log_rx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header);
+const char *il_get_mgmt_string(int cmd);
+const char *il_get_ctrl_string(int cmd);
+void il_clear_traffic_stats(struct il_priv *il);
+void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
+#else
+static inline int
+il_alloc_traffic_mem(struct il_priv *il)
+{
+ return 0;
+}
+
+static inline void
+il_free_traffic_mem(struct il_priv *il)
+{
+}
+
+static inline void
+il_reset_traffic_log(struct il_priv *il)
+{
+}
+
+static inline void
+il_dbg_log_tx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header)
+{
+}
+
+static inline void
+il_dbg_log_rx_data_frame(struct il_priv *il, u16 length,
+ struct ieee80211_hdr *header)
+{
+}
+
+static inline void
+il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
+{
+}
+#endif
+/*****************************************************
+ * RX handlers.
+ * **************************************************/
+void il_hdl_pm_sleep(struct il_priv *il, struct il_rx_buf *rxb);
+void il_hdl_pm_debug_stats(struct il_priv *il, struct il_rx_buf *rxb);
+void il_hdl_error(struct il_priv *il, struct il_rx_buf *rxb);
+
+/*****************************************************
+* RX
+******************************************************/
+void il_cmd_queue_unmap(struct il_priv *il);
+void il_cmd_queue_free(struct il_priv *il);
+int il_rx_queue_alloc(struct il_priv *il);
+void il_rx_queue_update_write_ptr(struct il_priv *il, struct il_rx_queue *q);
+int il_rx_queue_space(const struct il_rx_queue *q);
+void il_tx_cmd_complete(struct il_priv *il, struct il_rx_buf *rxb);
+/* Handlers */
+void il_hdl_spectrum_measurement(struct il_priv *il, struct il_rx_buf *rxb);
+void il_recover_from_stats(struct il_priv *il, struct il_rx_pkt *pkt);
+void il_chswitch_done(struct il_priv *il, bool is_success);
+void il_hdl_csa(struct il_priv *il, struct il_rx_buf *rxb);
+
+/* TX helpers */
+
+/*****************************************************
+* TX
+******************************************************/
+void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
+int il_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq, int slots_num,
+ u32 txq_id);
+void il_tx_queue_reset(struct il_priv *il, struct il_tx_queue *txq,
+ int slots_num, u32 txq_id);
+void il_tx_queue_unmap(struct il_priv *il, int txq_id);
+void il_tx_queue_free(struct il_priv *il, int txq_id);
+void il_setup_watchdog(struct il_priv *il);
+/*****************************************************
+ * TX power
+ ****************************************************/
+int il_set_tx_power(struct il_priv *il, s8 tx_power, bool force);
+
+/*******************************************************************************
+ * Rate
+ ******************************************************************************/
+
+u8 il_get_lowest_plcp(struct il_priv *il, struct il_rxon_context *ctx);
+
+/*******************************************************************************
+ * Scanning
+ ******************************************************************************/
+void il_init_scan_params(struct il_priv *il);
+int il_scan_cancel(struct il_priv *il);
+int il_scan_cancel_timeout(struct il_priv *il, unsigned long ms);
+void il_force_scan_end(struct il_priv *il);
+int il_mac_hw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct cfg80211_scan_request *req);
+void il_internal_short_hw_scan(struct il_priv *il);
+int il_force_reset(struct il_priv *il, bool external);
+u16 il_fill_probe_req(struct il_priv *il, struct ieee80211_mgmt *frame,
+ const u8 *ta, const u8 *ie, int ie_len, int left);
+void il_setup_rx_scan_handlers(struct il_priv *il);
+u16 il_get_active_dwell_time(struct il_priv *il, enum ieee80211_band band,
+ u8 n_probes);
+u16 il_get_passive_dwell_time(struct il_priv *il, enum ieee80211_band band,
+ struct ieee80211_vif *vif);
+void il_setup_scan_deferred_work(struct il_priv *il);
+void il_cancel_scan_deferred_work(struct il_priv *il);
+
+/* For faster active scanning, scan will move to the next channel if fewer than
+ * PLCP_QUIET_THRESH packets are heard on this channel within
+ * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
+ * time if it's a quiet channel (nothing responded to our probe, and there's
+ * no other traffic).
+ * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
+#define IL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */
+#define IL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */
+
+#define IL_SCAN_CHECK_WATCHDOG (HZ * 7)
+
+/*****************************************************
+ * S e n d i n g H o s t C o m m a n d s *
+ *****************************************************/
+
+const char *il_get_cmd_string(u8 cmd);
+int __must_check il_send_cmd_sync(struct il_priv *il, struct il_host_cmd *cmd);
+int il_send_cmd(struct il_priv *il, struct il_host_cmd *cmd);
+int __must_check il_send_cmd_pdu(struct il_priv *il, u8 id, u16 len,
+ const void *data);
+int il_send_cmd_pdu_async(struct il_priv *il, u8 id, u16 len, const void *data,
+ void (*callback) (struct il_priv *il,
+ struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt));
+
+int il_enqueue_hcmd(struct il_priv *il, struct il_host_cmd *cmd);
+
+/*****************************************************
+ * PCI *
+ *****************************************************/
+
+static inline u16
+il_pcie_link_ctl(struct il_priv *il)
+{
+ int pos;
+ u16 pci_lnk_ctl;
+ pos = pci_pcie_cap(il->pci_dev);
+ pci_read_config_word(il->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
+ return pci_lnk_ctl;
+}
+
+void il_bg_watchdog(unsigned long data);
+u32 il_usecs_to_beacons(struct il_priv *il, u32 usec, u32 beacon_interval);
+__le32 il_add_beacon_time(struct il_priv *il, u32 base, u32 addon,
+ u32 beacon_interval);
+
+#ifdef CONFIG_PM
+int il_pci_suspend(struct device *device);
+int il_pci_resume(struct device *device);
+extern const struct dev_pm_ops il_pm_ops;
+
+#define IL_LEGACY_PM_OPS (&il_pm_ops)
+
+#else /* !CONFIG_PM */
+
+#define IL_LEGACY_PM_OPS NULL
+
+#endif /* !CONFIG_PM */
+
+/*****************************************************
+* Error Handling Debugging
+******************************************************/
+void il4965_dump_nic_error_log(struct il_priv *il);
+#ifdef CONFIG_IWLEGACY_DEBUG
+void il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx);
+#else
+static inline void
+il_print_rx_config_cmd(struct il_priv *il, struct il_rxon_context *ctx)
+{
+}
+#endif
+
+void il_clear_isr_stats(struct il_priv *il);
+
+/*****************************************************
+* GEOS
+******************************************************/
+int il_init_geos(struct il_priv *il);
+void il_free_geos(struct il_priv *il);
+
+/*************** DRIVER STATUS FUNCTIONS *****/
+
+#define S_HCMD_ACTIVE 0 /* host command in progress */
+/* 1 is unused (used to be S_HCMD_SYNC_ACTIVE) */
+#define S_INT_ENABLED 2
+#define S_RF_KILL_HW 3
+#define S_CT_KILL 4
+#define S_INIT 5
+#define S_ALIVE 6
+#define S_READY 7
+#define S_TEMPERATURE 8
+#define S_GEO_CONFIGURED 9
+#define S_EXIT_PENDING 10
+#define S_STATS 12
+#define S_SCANNING 13
+#define S_SCAN_ABORTING 14
+#define S_SCAN_HW 15
+#define S_POWER_PMI 16
+#define S_FW_ERROR 17
+#define S_CHANNEL_SWITCH_PENDING 18
+
+static inline int
+il_is_ready(struct il_priv *il)
+{
+ /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
+ * set but EXIT_PENDING is not */
+ return test_bit(S_READY, &il->status) &&
+ test_bit(S_GEO_CONFIGURED, &il->status) &&
+ !test_bit(S_EXIT_PENDING, &il->status);
+}
+
+static inline int
+il_is_alive(struct il_priv *il)
+{
+ return test_bit(S_ALIVE, &il->status);
+}
+
+static inline int
+il_is_init(struct il_priv *il)
+{
+ return test_bit(S_INIT, &il->status);
+}
+
+static inline int
+il_is_rfkill_hw(struct il_priv *il)
+{
+ return test_bit(S_RF_KILL_HW, &il->status);
+}
+
+static inline int
+il_is_rfkill(struct il_priv *il)
+{
+ return il_is_rfkill_hw(il);
+}
+
+static inline int
+il_is_ctkill(struct il_priv *il)
+{
+ return test_bit(S_CT_KILL, &il->status);
+}
+
+static inline int
+il_is_ready_rf(struct il_priv *il)
+{
+
+ if (il_is_rfkill(il))
+ return 0;
+
+ return il_is_ready(il);
+}
+
+extern void il_send_bt_config(struct il_priv *il);
+extern int il_send_stats_request(struct il_priv *il, u8 flags, bool clear);
+void il_apm_stop(struct il_priv *il);
+int il_apm_init(struct il_priv *il);
+
+int il_send_rxon_timing(struct il_priv *il, struct il_rxon_context *ctx);
+static inline int
+il_send_rxon_assoc(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ return il->cfg->ops->hcmd->rxon_assoc(il, ctx);
+}
+
+static inline int
+il_commit_rxon(struct il_priv *il, struct il_rxon_context *ctx)
+{
+ return il->cfg->ops->hcmd->commit_rxon(il, ctx);
+}
+
+static inline const struct ieee80211_supported_band *
+il_get_hw_mode(struct il_priv *il, enum ieee80211_band band)
+{
+ return il->hw->wiphy->bands[band];
+}
+
+/* mac80211 handlers */
+int il_mac_config(struct ieee80211_hw *hw, u32 changed);
+void il_mac_reset_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+void il_mac_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_bss_conf *bss_conf, u32 changes);
+void il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info,
+ __le16 fc, __le32 *tx_flags);
+
+irqreturn_t il_isr(int irq, void *data);
+
+#include <linux/io.h>
+
+static inline void
+_il_write8(struct il_priv *il, u32 ofs, u8 val)
+{
+ iowrite8(val, il->hw_base + ofs);
+}
+#define il_write8(il, ofs, val) _il_write8(il, ofs, val)
+
+static inline void
+_il_wr(struct il_priv *il, u32 ofs, u32 val)
+{
+ iowrite32(val, il->hw_base + ofs);
+}
+
+static inline u32
+_il_rd(struct il_priv *il, u32 ofs)
+{
+ return ioread32(il->hw_base + ofs);
+}
+
+#define IL_POLL_INTERVAL 10 /* microseconds */
+static inline int
+_il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout)
+{
+ int t = 0;
+
+ do {
+ if ((_il_rd(il, addr) & mask) == (bits & mask))
+ return t;
+ udelay(IL_POLL_INTERVAL);
+ t += IL_POLL_INTERVAL;
+ } while (t < timeout);
+
+ return -ETIMEDOUT;
+}
+
+static inline void
+_il_set_bit(struct il_priv *il, u32 reg, u32 mask)
+{
+ _il_wr(il, reg, _il_rd(il, reg) | mask);
+}
+
+static inline void
+il_set_bit(struct il_priv *p, u32 r, u32 m)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&p->reg_lock, reg_flags);
+ _il_set_bit(p, r, m);
+ spin_unlock_irqrestore(&p->reg_lock, reg_flags);
+}
+
+static inline void
+_il_clear_bit(struct il_priv *il, u32 reg, u32 mask)
+{
+ _il_wr(il, reg, _il_rd(il, reg) & ~mask);
+}
+
+static inline void
+il_clear_bit(struct il_priv *p, u32 r, u32 m)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&p->reg_lock, reg_flags);
+ _il_clear_bit(p, r, m);
+ spin_unlock_irqrestore(&p->reg_lock, reg_flags);
+}
+
+static inline int
+_il_grab_nic_access(struct il_priv *il)
+{
+ int ret;
+ u32 val;
+
+ /* this bit wakes up the NIC */
+ _il_set_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+
+ /*
+ * These bits say the device is running, and should keep running for
+ * at least a short while (at least as long as MAC_ACCESS_REQ stays 1),
+ * but they do not indicate that embedded SRAM is restored yet;
+ * 3945 and 4965 have volatile SRAM, and must save/restore contents
+ * to/from host DRAM when sleeping/waking for power-saving.
+ * Each direction takes approximately 1/4 millisecond; with this
+ * overhead, it's a good idea to grab and hold MAC_ACCESS_REQUEST if a
+ * series of register accesses are expected (e.g. reading Event Log),
+ * to keep device from sleeping.
+ *
+ * CSR_UCODE_DRV_GP1 register bit MAC_SLEEP == 0 indicates that
+ * SRAM is okay/restored. We don't check that here because this call
+ * is just for hardware register access; but GP1 MAC_SLEEP check is a
+ * good idea before accessing 3945/4965 SRAM (e.g. reading Event Log).
+ *
+ */
+ ret =
+ _il_poll_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
+ (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
+ CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
+ if (ret < 0) {
+ val = _il_rd(il, CSR_GP_CNTRL);
+ IL_ERR("MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
+ _il_wr(il, CSR_RESET, CSR_RESET_REG_FLAG_FORCE_NMI);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static inline void
+_il_release_nic_access(struct il_priv *il)
+{
+ _il_clear_bit(il, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
+}
+
+static inline u32
+il_rd(struct il_priv *il, u32 reg)
+{
+ u32 value;
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+ value = _il_rd(il, reg);
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+ return value;
+
+}
+
+static inline void
+il_wr(struct il_priv *il, u32 reg, u32 value)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ if (!_il_grab_nic_access(il)) {
+ _il_wr(il, reg, value);
+ _il_release_nic_access(il);
+ }
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+static inline void
+il_write_reg_buf(struct il_priv *il, u32 reg, u32 len, u32 * values)
+{
+ u32 count = sizeof(u32);
+
+ if (il != NULL && values != NULL) {
+ for (; 0 < len; len -= count, reg += count, values++)
+ il_wr(il, reg, *values);
+ }
+}
+
+static inline int
+il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout)
+{
+ int t = 0;
+
+ do {
+ if ((il_rd(il, addr) & mask) == mask)
+ return t;
+ udelay(IL_POLL_INTERVAL);
+ t += IL_POLL_INTERVAL;
+ } while (t < timeout);
+
+ return -ETIMEDOUT;
+}
+
+static inline u32
+_il_rd_prph(struct il_priv *il, u32 reg)
+{
+ _il_wr(il, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
+ rmb();
+ return _il_rd(il, HBUS_TARG_PRPH_RDAT);
+}
+
+static inline u32
+il_rd_prph(struct il_priv *il, u32 reg)
+{
+ unsigned long reg_flags;
+ u32 val;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+ val = _il_rd_prph(il, reg);
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+ return val;
+}
+
+static inline void
+_il_wr_prph(struct il_priv *il, u32 addr, u32 val)
+{
+ _il_wr(il, HBUS_TARG_PRPH_WADDR, ((addr & 0x0000FFFF) | (3 << 24)));
+ wmb();
+ _il_wr(il, HBUS_TARG_PRPH_WDAT, val);
+}
+
+static inline void
+il_wr_prph(struct il_priv *il, u32 addr, u32 val)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ if (!_il_grab_nic_access(il)) {
+ _il_wr_prph(il, addr, val);
+ _il_release_nic_access(il);
+ }
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+#define _il_set_bits_prph(il, reg, mask) \
+_il_wr_prph(il, reg, (_il_rd_prph(il, reg) | mask))
+
+static inline void
+il_set_bits_prph(struct il_priv *il, u32 reg, u32 mask)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+ _il_set_bits_prph(il, reg, mask);
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+#define _il_set_bits_mask_prph(il, reg, bits, mask) \
+_il_wr_prph(il, reg, \
+ ((_il_rd_prph(il, reg) & mask) | bits))
+
+static inline void
+il_set_bits_mask_prph(struct il_priv *il, u32 reg, u32 bits, u32 mask)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+ _il_set_bits_mask_prph(il, reg, bits, mask);
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+static inline void
+il_clear_bits_prph(struct il_priv *il, u32 reg, u32 mask)
+{
+ unsigned long reg_flags;
+ u32 val;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+ val = _il_rd_prph(il, reg);
+ _il_wr_prph(il, reg, (val & ~mask));
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+static inline u32
+il_read_targ_mem(struct il_priv *il, u32 addr)
+{
+ unsigned long reg_flags;
+ u32 value;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ _il_grab_nic_access(il);
+
+ _il_wr(il, HBUS_TARG_MEM_RADDR, addr);
+ rmb();
+ value = _il_rd(il, HBUS_TARG_MEM_RDAT);
+
+ _il_release_nic_access(il);
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+ return value;
+}
+
+static inline void
+il_write_targ_mem(struct il_priv *il, u32 addr, u32 val)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ if (!_il_grab_nic_access(il)) {
+ _il_wr(il, HBUS_TARG_MEM_WADDR, addr);
+ wmb();
+ _il_wr(il, HBUS_TARG_MEM_WDAT, val);
+ _il_release_nic_access(il);
+ }
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+static inline void
+il_write_targ_mem_buf(struct il_priv *il, u32 addr, u32 len, u32 * values)
+{
+ unsigned long reg_flags;
+
+ spin_lock_irqsave(&il->reg_lock, reg_flags);
+ if (!_il_grab_nic_access(il)) {
+ _il_wr(il, HBUS_TARG_MEM_WADDR, addr);
+ wmb();
+ for (; 0 < len; len -= sizeof(u32), values++)
+ _il_wr(il, HBUS_TARG_MEM_WDAT, *values);
+
+ _il_release_nic_access(il);
+ }
+ spin_unlock_irqrestore(&il->reg_lock, reg_flags);
+}
+
+#define HW_KEY_DYNAMIC 0
+#define HW_KEY_DEFAULT 1
+
+#define IL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
+#define IL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
+#define IL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
+ being activated */
+#define IL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
+ (this is for the IBSS BSSID stations) */
+#define IL_STA_BCAST BIT(4) /* this station is the special bcast station */
+
+void il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx);
+void il_clear_ucode_stations(struct il_priv *il, struct il_rxon_context *ctx);
+void il_dealloc_bcast_stations(struct il_priv *il);
+int il_get_free_ucode_key_idx(struct il_priv *il);
+int il_send_add_sta(struct il_priv *il, struct il_addsta_cmd *sta, u8 flags);
+int il_add_station_common(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, bool is_ap,
+ struct ieee80211_sta *sta, u8 *sta_id_r);
+int il_remove_station(struct il_priv *il, const u8 sta_id, const u8 * addr);
+int il_mac_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct ieee80211_sta *sta);
+
+u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx,
+ const u8 *addr, bool is_ap, struct ieee80211_sta *sta);
+
+int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx,
+ struct il_link_quality_cmd *lq, u8 flags, bool init);
+
+/**
+ * il_clear_driver_stations - clear knowledge of all stations from driver
+ * @il: iwl il struct
+ *
+ * This is called during il_down() to make sure that in the case
+ * we're coming there from a hardware restart mac80211 will be
+ * able to reconfigure stations -- if we're getting there in the
+ * normal down flow then the stations will already be cleared.
+ */
+static inline void
+il_clear_driver_stations(struct il_priv *il)
+{
+ unsigned long flags;
+ struct il_rxon_context *ctx = &il->ctx;
+
+ spin_lock_irqsave(&il->sta_lock, flags);
+ memset(il->stations, 0, sizeof(il->stations));
+ il->num_stations = 0;
+
+ il->ucode_key_table = 0;
+
+ /*
+ * Remove all key information that is not stored as part
+ * of station information since mac80211 may not have had
+ * a chance to remove all the keys. When device is
+ * reconfigured by mac80211 after an error all keys will
+ * be reconfigured.
+ */
+ memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
+ ctx->key_mapping_keys = 0;
+
+ spin_unlock_irqrestore(&il->sta_lock, flags);
+}
+
+static inline int
+il_sta_id(struct ieee80211_sta *sta)
+{
+ if (WARN_ON(!sta))
+ return IL_INVALID_STATION;
+
+ return ((struct il_station_priv_common *)sta->drv_priv)->sta_id;
+}
+
+/**
+ * il_sta_id_or_broadcast - return sta_id or broadcast sta
+ * @il: iwl il
+ * @context: the current context
+ * @sta: mac80211 station
+ *
+ * In certain circumstances mac80211 passes a station pointer
+ * that may be %NULL, for example during TX or key setup. In
+ * that case, we need to use the broadcast station, so this
+ * inline wraps that pattern.
+ */
+static inline int
+il_sta_id_or_broadcast(struct il_priv *il, struct il_rxon_context *context,
+ struct ieee80211_sta *sta)
+{
+ int sta_id;
+
+ if (!sta)
+ return context->bcast_sta_id;
+
+ sta_id = il_sta_id(sta);
+
+ /*
+ * mac80211 should not be passing a partially
+ * initialised station!
+ */
+ WARN_ON(sta_id == IL_INVALID_STATION);
+
+ return sta_id;
+}
+
+/**
+ * il_queue_inc_wrap - increment queue idx, wrap back to beginning
+ * @idx -- current idx
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int
+il_queue_inc_wrap(int idx, int n_bd)
+{
+ return ++idx & (n_bd - 1);
+}
+
+/**
+ * il_queue_dec_wrap - decrement queue idx, wrap back to end
+ * @idx -- current idx
+ * @n_bd -- total number of entries in queue (must be power of 2)
+ */
+static inline int
+il_queue_dec_wrap(int idx, int n_bd)
+{
+ return --idx & (n_bd - 1);
+}
+
+/* TODO: Move fw_desc functions to iwl-pci.ko */
+static inline void
+il_free_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
+{
+ if (desc->v_addr)
+ dma_free_coherent(&pci_dev->dev, desc->len, desc->v_addr,
+ desc->p_addr);
+ desc->v_addr = NULL;
+ desc->len = 0;
+}
+
+static inline int
+il_alloc_fw_desc(struct pci_dev *pci_dev, struct fw_desc *desc)
+{
+ if (!desc->len) {
+ desc->v_addr = NULL;
+ return -EINVAL;
+ }
+
+ desc->v_addr =
+ dma_alloc_coherent(&pci_dev->dev, desc->len, &desc->p_addr,
+ GFP_KERNEL);
+ return (desc->v_addr != NULL) ? 0 : -ENOMEM;
+}
+
+/*
+ * we have 8 bits used like this:
+ *
+ * 7 6 5 4 3 2 1 0
+ * | | | | | | | |
+ * | | | | | | +-+-------- AC queue (0-3)
+ * | | | | | |
+ * | +-+-+-+-+------------ HW queue ID
+ * |
+ * +---------------------- unused
+ */
+static inline void
+il_set_swq_id(struct il_tx_queue *txq, u8 ac, u8 hwq)
+{
+ BUG_ON(ac > 3); /* only have 2 bits */
+ BUG_ON(hwq > 31); /* only use 5 bits */
+
+ txq->swq_id = (hwq << 2) | ac;
+}
+
+static inline void
+il_wake_queue(struct il_priv *il, struct il_tx_queue *txq)
+{
+ u8 queue = txq->swq_id;
+ u8 ac = queue & 3;
+ u8 hwq = (queue >> 2) & 0x1f;
+
+ if (test_and_clear_bit(hwq, il->queue_stopped))
+ if (atomic_dec_return(&il->queue_stop_count[ac]) <= 0)
+ ieee80211_wake_queue(il->hw, ac);
+}
+
+static inline void
+il_stop_queue(struct il_priv *il, struct il_tx_queue *txq)
+{
+ u8 queue = txq->swq_id;
+ u8 ac = queue & 3;
+ u8 hwq = (queue >> 2) & 0x1f;
+
+ if (!test_and_set_bit(hwq, il->queue_stopped))
+ if (atomic_inc_return(&il->queue_stop_count[ac]) > 0)
+ ieee80211_stop_queue(il->hw, ac);
+}
+
+#ifdef ieee80211_stop_queue
+#undef ieee80211_stop_queue
+#endif
+
+#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
+
+#ifdef ieee80211_wake_queue
+#undef ieee80211_wake_queue
+#endif
+
+#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
+
+static inline void
+il_disable_interrupts(struct il_priv *il)
+{
+ clear_bit(S_INT_ENABLED, &il->status);
+
+ /* disable interrupts from uCode/NIC to host */
+ _il_wr(il, CSR_INT_MASK, 0x00000000);
+
+ /* acknowledge/clear/reset any interrupts still pending
+ * from uCode or flow handler (Rx/Tx DMA) */
+ _il_wr(il, CSR_INT, 0xffffffff);
+ _il_wr(il, CSR_FH_INT_STATUS, 0xffffffff);
+}
+
+static inline void
+il_enable_rfkill_int(struct il_priv *il)
+{
+ _il_wr(il, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
+}
+
+static inline void
+il_enable_interrupts(struct il_priv *il)
+{
+ set_bit(S_INT_ENABLED, &il->status);
+ _il_wr(il, CSR_INT_MASK, il->inta_mask);
+}
+
+/**
+ * il_beacon_time_mask_low - mask of lower 32 bit of beacon time
+ * @il -- pointer to il_priv data structure
+ * @tsf_bits -- number of bits need to shift for masking)
+ */
+static inline u32
+il_beacon_time_mask_low(struct il_priv *il, u16 tsf_bits)
+{
+ return (1 << tsf_bits) - 1;
+}
+
+/**
+ * il_beacon_time_mask_high - mask of higher 32 bit of beacon time
+ * @il -- pointer to il_priv data structure
+ * @tsf_bits -- number of bits need to shift for masking)
+ */
+static inline u32
+il_beacon_time_mask_high(struct il_priv *il, u16 tsf_bits)
+{
+ return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
+}
+
+/**
+ * struct il_rb_status - reseve buffer status host memory mapped FH registers
+ *
+ * @closed_rb_num [0:11] - Indicates the idx of the RB which was closed
+ * @closed_fr_num [0:11] - Indicates the idx of the RX Frame which was closed
+ * @finished_rb_num [0:11] - Indicates the idx of the current RB
+ * in which the last frame was written to
+ * @finished_fr_num [0:11] - Indicates the idx of the RX Frame
+ * which was transferred
+ */
+struct il_rb_status {
+ __le16 closed_rb_num;
+ __le16 closed_fr_num;
+ __le16 finished_rb_num;
+ __le16 finished_fr_nam;
+ __le32 __unused; /* 3945 only */
+} __packed;
+
+#define TFD_QUEUE_SIZE_MAX (256)
+#define TFD_QUEUE_SIZE_BC_DUP (64)
+#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
+#define IL_TX_DMA_MASK DMA_BIT_MASK(36)
+#define IL_NUM_OF_TBS 20
+
+static inline u8
+il_get_dma_hi_addr(dma_addr_t addr)
+{
+ return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF;
+}
+
+/**
+ * struct il_tfd_tb transmit buffer descriptor within transmit frame descriptor
+ *
+ * This structure contains dma address and length of transmission address
+ *
+ * @lo: low [31:0] portion of the dma address of TX buffer every even is
+ * unaligned on 16 bit boundary
+ * @hi_n_len: 0-3 [35:32] portion of dma
+ * 4-15 length of the tx buffer
+ */
+struct il_tfd_tb {
+ __le32 lo;
+ __le16 hi_n_len;
+} __packed;
+
+/**
+ * struct il_tfd
+ *
+ * Transmit Frame Descriptor (TFD)
+ *
+ * @ __reserved1[3] reserved
+ * @ num_tbs 0-4 number of active tbs
+ * 5 reserved
+ * 6-7 padding (not used)
+ * @ tbs[20] transmit frame buffer descriptors
+ * @ __pad padding
+ *
+ * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
+ * Both driver and device share these circular buffers, each of which must be
+ * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes
+ *
+ * Driver must indicate the physical address of the base of each
+ * circular buffer via the FH49_MEM_CBBC_QUEUE registers.
+ *
+ * Each TFD contains pointer/size information for up to 20 data buffers
+ * in host DRAM. These buffers collectively contain the (one) frame described
+ * by the TFD. Each buffer must be a single contiguous block of memory within
+ * itself, but buffers may be scattered in host DRAM. Each buffer has max size
+ * of (4K - 4). The concatenates all of a TFD's buffers into a single
+ * Tx frame, up to 8 KBytes in size.
+ *
+ * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
+ */
+struct il_tfd {
+ u8 __reserved1[3];
+ u8 num_tbs;
+ struct il_tfd_tb tbs[IL_NUM_OF_TBS];
+ __le32 __pad;
+} __packed;
+/* PCI registers */
+#define PCI_CFG_RETRY_TIMEOUT 0x041
+
+/* PCI register values */
+#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
+#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
+
+struct il_rate_info {
+ u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */
+ u8 plcp_siso; /* uCode API: RATE_SISO_6M_PLCP, etc. */
+ u8 plcp_mimo2; /* uCode API: RATE_MIMO2_6M_PLCP, etc. */
+ u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */
+ u8 prev_ieee; /* previous rate in IEEE speeds */
+ u8 next_ieee; /* next rate in IEEE speeds */
+ u8 prev_rs; /* previous rate used in rs algo */
+ u8 next_rs; /* next rate used in rs algo */
+ u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
+ u8 next_rs_tgg; /* next rate used in TGG rs algo */
+};
+
+struct il3945_rate_info {
+ u8 plcp; /* uCode API: RATE_6M_PLCP, etc. */
+ u8 ieee; /* MAC header: RATE_6M_IEEE, etc. */
+ u8 prev_ieee; /* previous rate in IEEE speeds */
+ u8 next_ieee; /* next rate in IEEE speeds */
+ u8 prev_rs; /* previous rate used in rs algo */
+ u8 next_rs; /* next rate used in rs algo */
+ u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
+ u8 next_rs_tgg; /* next rate used in TGG rs algo */
+ u8 table_rs_idx; /* idx in rate scale table cmd */
+ u8 prev_table_rs; /* prev in rate table cmd */
+};
+
+/*
+ * These serve as idxes into
+ * struct il_rate_info il_rates[RATE_COUNT];
+ */
+enum {
+ RATE_1M_IDX = 0,
+ RATE_2M_IDX,
+ RATE_5M_IDX,
+ RATE_11M_IDX,
+ RATE_6M_IDX,
+ RATE_9M_IDX,
+ RATE_12M_IDX,
+ RATE_18M_IDX,
+ RATE_24M_IDX,
+ RATE_36M_IDX,
+ RATE_48M_IDX,
+ RATE_54M_IDX,
+ RATE_60M_IDX,
+ RATE_COUNT,
+ RATE_COUNT_LEGACY = RATE_COUNT - 1, /* Excluding 60M */
+ RATE_COUNT_3945 = RATE_COUNT - 1,
+ RATE_INVM_IDX = RATE_COUNT,
+ RATE_INVALID = RATE_COUNT,
+};
+
+enum {
+ RATE_6M_IDX_TBL = 0,
+ RATE_9M_IDX_TBL,
+ RATE_12M_IDX_TBL,
+ RATE_18M_IDX_TBL,
+ RATE_24M_IDX_TBL,
+ RATE_36M_IDX_TBL,
+ RATE_48M_IDX_TBL,
+ RATE_54M_IDX_TBL,
+ RATE_1M_IDX_TBL,
+ RATE_2M_IDX_TBL,
+ RATE_5M_IDX_TBL,
+ RATE_11M_IDX_TBL,
+ RATE_INVM_IDX_TBL = RATE_INVM_IDX - 1,
+};
+
+enum {
+ IL_FIRST_OFDM_RATE = RATE_6M_IDX,
+ IL39_LAST_OFDM_RATE = RATE_54M_IDX,
+ IL_LAST_OFDM_RATE = RATE_60M_IDX,
+ IL_FIRST_CCK_RATE = RATE_1M_IDX,
+ IL_LAST_CCK_RATE = RATE_11M_IDX,
+};
+
+/* #define vs. enum to keep from defaulting to 'large integer' */
+#define RATE_6M_MASK (1 << RATE_6M_IDX)
+#define RATE_9M_MASK (1 << RATE_9M_IDX)
+#define RATE_12M_MASK (1 << RATE_12M_IDX)
+#define RATE_18M_MASK (1 << RATE_18M_IDX)
+#define RATE_24M_MASK (1 << RATE_24M_IDX)
+#define RATE_36M_MASK (1 << RATE_36M_IDX)
+#define RATE_48M_MASK (1 << RATE_48M_IDX)
+#define RATE_54M_MASK (1 << RATE_54M_IDX)
+#define RATE_60M_MASK (1 << RATE_60M_IDX)
+#define RATE_1M_MASK (1 << RATE_1M_IDX)
+#define RATE_2M_MASK (1 << RATE_2M_IDX)
+#define RATE_5M_MASK (1 << RATE_5M_IDX)
+#define RATE_11M_MASK (1 << RATE_11M_IDX)
+
+/* uCode API values for legacy bit rates, both OFDM and CCK */
+enum {
+ RATE_6M_PLCP = 13,
+ RATE_9M_PLCP = 15,
+ RATE_12M_PLCP = 5,
+ RATE_18M_PLCP = 7,
+ RATE_24M_PLCP = 9,
+ RATE_36M_PLCP = 11,
+ RATE_48M_PLCP = 1,
+ RATE_54M_PLCP = 3,
+ RATE_60M_PLCP = 3, /*FIXME:RS:should be removed */
+ RATE_1M_PLCP = 10,
+ RATE_2M_PLCP = 20,
+ RATE_5M_PLCP = 55,
+ RATE_11M_PLCP = 110,
+ /*FIXME:RS:add RATE_LEGACY_INVM_PLCP = 0, */
+};
+
+/* uCode API values for OFDM high-throughput (HT) bit rates */
+enum {
+ RATE_SISO_6M_PLCP = 0,
+ RATE_SISO_12M_PLCP = 1,
+ RATE_SISO_18M_PLCP = 2,
+ RATE_SISO_24M_PLCP = 3,
+ RATE_SISO_36M_PLCP = 4,
+ RATE_SISO_48M_PLCP = 5,
+ RATE_SISO_54M_PLCP = 6,
+ RATE_SISO_60M_PLCP = 7,
+ RATE_MIMO2_6M_PLCP = 0x8,
+ RATE_MIMO2_12M_PLCP = 0x9,
+ RATE_MIMO2_18M_PLCP = 0xa,
+ RATE_MIMO2_24M_PLCP = 0xb,
+ RATE_MIMO2_36M_PLCP = 0xc,
+ RATE_MIMO2_48M_PLCP = 0xd,
+ RATE_MIMO2_54M_PLCP = 0xe,
+ RATE_MIMO2_60M_PLCP = 0xf,
+ RATE_SISO_INVM_PLCP,
+ RATE_MIMO2_INVM_PLCP = RATE_SISO_INVM_PLCP,
+};
+
+/* MAC header values for bit rates */
+enum {
+ RATE_6M_IEEE = 12,
+ RATE_9M_IEEE = 18,
+ RATE_12M_IEEE = 24,
+ RATE_18M_IEEE = 36,
+ RATE_24M_IEEE = 48,
+ RATE_36M_IEEE = 72,
+ RATE_48M_IEEE = 96,
+ RATE_54M_IEEE = 108,
+ RATE_60M_IEEE = 120,
+ RATE_1M_IEEE = 2,
+ RATE_2M_IEEE = 4,
+ RATE_5M_IEEE = 11,
+ RATE_11M_IEEE = 22,
+};
+
+#define IL_CCK_BASIC_RATES_MASK \
+ (RATE_1M_MASK | \
+ RATE_2M_MASK)
+
+#define IL_CCK_RATES_MASK \
+ (IL_CCK_BASIC_RATES_MASK | \
+ RATE_5M_MASK | \
+ RATE_11M_MASK)
+
+#define IL_OFDM_BASIC_RATES_MASK \
+ (RATE_6M_MASK | \
+ RATE_12M_MASK | \
+ RATE_24M_MASK)
+
+#define IL_OFDM_RATES_MASK \
+ (IL_OFDM_BASIC_RATES_MASK | \
+ RATE_9M_MASK | \
+ RATE_18M_MASK | \
+ RATE_36M_MASK | \
+ RATE_48M_MASK | \
+ RATE_54M_MASK)
+
+#define IL_BASIC_RATES_MASK \
+ (IL_OFDM_BASIC_RATES_MASK | \
+ IL_CCK_BASIC_RATES_MASK)
+
+#define RATES_MASK ((1 << RATE_COUNT) - 1)
+#define RATES_MASK_3945 ((1 << RATE_COUNT_3945) - 1)
+
+#define IL_INVALID_VALUE -1
+
+#define IL_MIN_RSSI_VAL -100
+#define IL_MAX_RSSI_VAL 0
+
+/* These values specify how many Tx frame attempts before
+ * searching for a new modulation mode */
+#define IL_LEGACY_FAILURE_LIMIT 160
+#define IL_LEGACY_SUCCESS_LIMIT 480
+#define IL_LEGACY_TBL_COUNT 160
+
+#define IL_NONE_LEGACY_FAILURE_LIMIT 400
+#define IL_NONE_LEGACY_SUCCESS_LIMIT 4500
+#define IL_NONE_LEGACY_TBL_COUNT 1500
+
+/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
+#define IL_RS_GOOD_RATIO 12800 /* 100% */
+#define RATE_SCALE_SWITCH 10880 /* 85% */
+#define RATE_HIGH_TH 10880 /* 85% */
+#define RATE_INCREASE_TH 6400 /* 50% */
+#define RATE_DECREASE_TH 1920 /* 15% */
+
+/* possible actions when in legacy mode */
+#define IL_LEGACY_SWITCH_ANTENNA1 0
+#define IL_LEGACY_SWITCH_ANTENNA2 1
+#define IL_LEGACY_SWITCH_SISO 2
+#define IL_LEGACY_SWITCH_MIMO2_AB 3
+#define IL_LEGACY_SWITCH_MIMO2_AC 4
+#define IL_LEGACY_SWITCH_MIMO2_BC 5
+
+/* possible actions when in siso mode */
+#define IL_SISO_SWITCH_ANTENNA1 0
+#define IL_SISO_SWITCH_ANTENNA2 1
+#define IL_SISO_SWITCH_MIMO2_AB 2
+#define IL_SISO_SWITCH_MIMO2_AC 3
+#define IL_SISO_SWITCH_MIMO2_BC 4
+#define IL_SISO_SWITCH_GI 5
+
+/* possible actions when in mimo mode */
+#define IL_MIMO2_SWITCH_ANTENNA1 0
+#define IL_MIMO2_SWITCH_ANTENNA2 1
+#define IL_MIMO2_SWITCH_SISO_A 2
+#define IL_MIMO2_SWITCH_SISO_B 3
+#define IL_MIMO2_SWITCH_SISO_C 4
+#define IL_MIMO2_SWITCH_GI 5
+
+#define IL_MAX_SEARCH IL_MIMO2_SWITCH_GI
+
+#define IL_ACTION_LIMIT 3 /* # possible actions */
+
+#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
+
+/* load per tid defines for A-MPDU activation */
+#define IL_AGG_TPT_THREHOLD 0
+#define IL_AGG_LOAD_THRESHOLD 10
+#define IL_AGG_ALL_TID 0xff
+#define TID_QUEUE_CELL_SPACING 50 /*mS */
+#define TID_QUEUE_MAX_SIZE 20
+#define TID_ROUND_VALUE 5 /* mS */
+#define TID_MAX_LOAD_COUNT 8
+
+#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
+#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
+
+extern const struct il_rate_info il_rates[RATE_COUNT];
+
+enum il_table_type {
+ LQ_NONE,
+ LQ_G, /* legacy types */
+ LQ_A,
+ LQ_SISO, /* high-throughput types */
+ LQ_MIMO2,
+ LQ_MAX,
+};
+
+#define is_legacy(tbl) ((tbl) == LQ_G || (tbl) == LQ_A)
+#define is_siso(tbl) ((tbl) == LQ_SISO)
+#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
+#define is_mimo(tbl) (is_mimo2(tbl))
+#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
+#define is_a_band(tbl) ((tbl) == LQ_A)
+#define is_g_and(tbl) ((tbl) == LQ_G)
+
+#define ANT_NONE 0x0
+#define ANT_A BIT(0)
+#define ANT_B BIT(1)
+#define ANT_AB (ANT_A | ANT_B)
+#define ANT_C BIT(2)
+#define ANT_AC (ANT_A | ANT_C)
+#define ANT_BC (ANT_B | ANT_C)
+#define ANT_ABC (ANT_AB | ANT_C)
+
+#define IL_MAX_MCS_DISPLAY_SIZE 12
+
+struct il_rate_mcs_info {
+ char mbps[IL_MAX_MCS_DISPLAY_SIZE];
+ char mcs[IL_MAX_MCS_DISPLAY_SIZE];
+};
+
+/**
+ * struct il_rate_scale_data -- tx success history for one rate
+ */
+struct il_rate_scale_data {
+ u64 data; /* bitmap of successful frames */
+ s32 success_counter; /* number of frames successful */
+ s32 success_ratio; /* per-cent * 128 */
+ s32 counter; /* number of frames attempted */
+ s32 average_tpt; /* success ratio * expected throughput */
+ unsigned long stamp;
+};
+
+/**
+ * struct il_scale_tbl_info -- tx params and success history for all rates
+ *
+ * There are two of these in struct il_lq_sta,
+ * one for "active", and one for "search".
+ */
+struct il_scale_tbl_info {
+ enum il_table_type lq_type;
+ u8 ant_type;
+ u8 is_SGI; /* 1 = short guard interval */
+ u8 is_ht40; /* 1 = 40 MHz channel width */
+ u8 is_dup; /* 1 = duplicated data streams */
+ u8 action; /* change modulation; IL_[LEGACY/SISO/MIMO]_SWITCH_* */
+ u8 max_search; /* maximun number of tables we can search */
+ s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
+ u32 current_rate; /* rate_n_flags, uCode API format */
+ struct il_rate_scale_data win[RATE_COUNT]; /* rate histories */
+};
+
+struct il_traffic_load {
+ unsigned long time_stamp; /* age of the oldest stats */
+ u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
+ * slice */
+ u32 total; /* total num of packets during the
+ * last TID_MAX_TIME_DIFF */
+ u8 queue_count; /* number of queues that has
+ * been used since the last cleanup */
+ u8 head; /* start of the circular buffer */
+};
+
+/**
+ * struct il_lq_sta -- driver's rate scaling ilate structure
+ *
+ * Pointer to this gets passed back and forth between driver and mac80211.
+ */
+struct il_lq_sta {
+ u8 active_tbl; /* idx of active table, range 0-1 */
+ u8 enable_counter; /* indicates HT mode */
+ u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
+ u8 search_better_tbl; /* 1: currently trying alternate mode */
+ s32 last_tpt;
+
+ /* The following determine when to search for a new mode */
+ u32 table_count_limit;
+ u32 max_failure_limit; /* # failed frames before new search */
+ u32 max_success_limit; /* # successful frames before new search */
+ u32 table_count;
+ u32 total_failed; /* total failed frames, any/all rates */
+ u32 total_success; /* total successful frames, any/all rates */
+ u64 flush_timer; /* time staying in mode before new search */
+
+ u8 action_counter; /* # mode-switch actions tried */
+ u8 is_green;
+ u8 is_dup;
+ enum ieee80211_band band;
+
+ /* The following are bitmaps of rates; RATE_6M_MASK, etc. */
+ u32 supp_rates;
+ u16 active_legacy_rate;
+ u16 active_siso_rate;
+ u16 active_mimo2_rate;
+ s8 max_rate_idx; /* Max rate set by user */
+ u8 missed_rate_counter;
+
+ struct il_link_quality_cmd lq;
+ struct il_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
+ struct il_traffic_load load[TID_MAX_LOAD_COUNT];
+ u8 tx_agg_tid_en;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct dentry *rs_sta_dbgfs_scale_table_file;
+ struct dentry *rs_sta_dbgfs_stats_table_file;
+ struct dentry *rs_sta_dbgfs_rate_scale_data_file;
+ struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
+ u32 dbg_fixed_rate;
+#endif
+ struct il_priv *drv;
+
+ /* used to be in sta_info */
+ int last_txrate_idx;
+ /* last tx rate_n_flags */
+ u32 last_rate_n_flags;
+ /* packets destined for this STA are aggregated */
+ u8 is_agg;
+};
+
+/*
+ * il_station_priv: Driver's ilate station information
+ *
+ * When mac80211 creates a station it reserves some space (hw->sta_data_size)
+ * in the structure for use by driver. This structure is places in that
+ * space.
+ *
+ * The common struct MUST be first because it is shared between
+ * 3945 and 4965!
+ */
+struct il_station_priv {
+ struct il_station_priv_common common;
+ struct il_lq_sta lq_sta;
+ atomic_t pending_frames;
+ bool client;
+ bool asleep;
+};
+
+static inline u8
+il4965_num_of_ant(u8 m)
+{
+ return !!(m & ANT_A) + !!(m & ANT_B) + !!(m & ANT_C);
+}
+
+static inline u8
+il4965_first_antenna(u8 mask)
+{
+ if (mask & ANT_A)
+ return ANT_A;
+ if (mask & ANT_B)
+ return ANT_B;
+ return ANT_C;
+}
+
+/**
+ * il3945_rate_scale_init - Initialize the rate scale table based on assoc info
+ *
+ * The specific throughput table used is based on the type of network
+ * the associated with, including A, B, G, and G w/ TGG protection
+ */
+extern void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+
+/* Initialize station's rate scaling information after adding station */
+extern void il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
+ u8 sta_id);
+extern void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
+ u8 sta_id);
+
+/**
+ * il_rate_control_register - Register the rate control algorithm callbacks
+ *
+ * Since the rate control algorithm is hardware specific, there is no need
+ * or reason to place it as a stand alone module. The driver can call
+ * il_rate_control_register in order to register the rate control callbacks
+ * with the mac80211 subsystem. This should be performed prior to calling
+ * ieee80211_register_hw
+ *
+ */
+extern int il4965_rate_control_register(void);
+extern int il3945_rate_control_register(void);
+
+/**
+ * il_rate_control_unregister - Unregister the rate control callbacks
+ *
+ * This should be called after calling ieee80211_unregister_hw, but before
+ * the driver is unloaded.
+ */
+extern void il4965_rate_control_unregister(void);
+extern void il3945_rate_control_unregister(void);
+
+extern int il_power_update_mode(struct il_priv *il, bool force);
+extern void il_power_initialize(struct il_priv *il);
+
+extern u32 il_debug_level;
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+/*
+ * il_get_debug_level: Return active debug level for device
+ *
+ * Using sysfs it is possible to set per device debug level. This debug
+ * level will be used if set, otherwise the global debug level which can be
+ * set via module parameter is used.
+ */
+static inline u32
+il_get_debug_level(struct il_priv *il)
+{
+ if (il->debug_level)
+ return il->debug_level;
+ else
+ return il_debug_level;
+}
+#else
+static inline u32
+il_get_debug_level(struct il_priv *il)
+{
+ return il_debug_level;
+}
+#endif
+
+#define il_print_hex_error(il, p, len) \
+do { \
+ print_hex_dump(KERN_ERR, "iwl data: ", \
+ DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
+} while (0)
+
+#ifdef CONFIG_IWLEGACY_DEBUG
+#define IL_DBG(level, fmt, args...) \
+do { \
+ if (il_get_debug_level(il) & level) \
+ dev_printk(KERN_ERR, &il->hw->wiphy->dev, \
+ "%c %s " fmt, in_interrupt() ? 'I' : 'U', \
+ __func__ , ## args); \
+} while (0)
+
+#define il_print_hex_dump(il, level, p, len) \
+do { \
+ if (il_get_debug_level(il) & level) \
+ print_hex_dump(KERN_DEBUG, "iwl data: ", \
+ DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
+} while (0)
+
+#else
+#define IL_DBG(level, fmt, args...)
+static inline void
+il_print_hex_dump(struct il_priv *il, int level, const void *p, u32 len)
+{
+}
+#endif /* CONFIG_IWLEGACY_DEBUG */
+
+#ifdef CONFIG_IWLEGACY_DEBUGFS
+int il_dbgfs_register(struct il_priv *il, const char *name);
+void il_dbgfs_unregister(struct il_priv *il);
+#else
+static inline int
+il_dbgfs_register(struct il_priv *il, const char *name)
+{
+ return 0;
+}
+
+static inline void
+il_dbgfs_unregister(struct il_priv *il)
+{
+}
+#endif /* CONFIG_IWLEGACY_DEBUGFS */
+
+/*
+ * To use the debug system:
+ *
+ * If you are defining a new debug classification, simply add it to the #define
+ * list here in the form of
+ *
+ * #define IL_DL_xxxx VALUE
+ *
+ * where xxxx should be the name of the classification (for example, WEP).
+ *
+ * You then need to either add a IL_xxxx_DEBUG() macro definition for your
+ * classification, or use IL_DBG(IL_DL_xxxx, ...) whenever you want
+ * to send output to that classification.
+ *
+ * The active debug levels can be accessed via files
+ *
+ * /sys/module/iwl4965/parameters/debug
+ * /sys/module/iwl3945/parameters/debug
+ * /sys/class/net/wlan0/device/debug_level
+ *
+ * when CONFIG_IWLEGACY_DEBUG=y.
+ */
+
+/* 0x0000000F - 0x00000001 */
+#define IL_DL_INFO (1 << 0)
+#define IL_DL_MAC80211 (1 << 1)
+#define IL_DL_HCMD (1 << 2)
+#define IL_DL_STATE (1 << 3)
+/* 0x000000F0 - 0x00000010 */
+#define IL_DL_MACDUMP (1 << 4)
+#define IL_DL_HCMD_DUMP (1 << 5)
+#define IL_DL_EEPROM (1 << 6)
+#define IL_DL_RADIO (1 << 7)
+/* 0x00000F00 - 0x00000100 */
+#define IL_DL_POWER (1 << 8)
+#define IL_DL_TEMP (1 << 9)
+#define IL_DL_NOTIF (1 << 10)
+#define IL_DL_SCAN (1 << 11)
+/* 0x0000F000 - 0x00001000 */
+#define IL_DL_ASSOC (1 << 12)
+#define IL_DL_DROP (1 << 13)
+#define IL_DL_TXPOWER (1 << 14)
+#define IL_DL_AP (1 << 15)
+/* 0x000F0000 - 0x00010000 */
+#define IL_DL_FW (1 << 16)
+#define IL_DL_RF_KILL (1 << 17)
+#define IL_DL_FW_ERRORS (1 << 18)
+#define IL_DL_LED (1 << 19)
+/* 0x00F00000 - 0x00100000 */
+#define IL_DL_RATE (1 << 20)
+#define IL_DL_CALIB (1 << 21)
+#define IL_DL_WEP (1 << 22)
+#define IL_DL_TX (1 << 23)
+/* 0x0F000000 - 0x01000000 */
+#define IL_DL_RX (1 << 24)
+#define IL_DL_ISR (1 << 25)
+#define IL_DL_HT (1 << 26)
+/* 0xF0000000 - 0x10000000 */
+#define IL_DL_11H (1 << 28)
+#define IL_DL_STATS (1 << 29)
+#define IL_DL_TX_REPLY (1 << 30)
+#define IL_DL_QOS (1 << 31)
+
+#define D_INFO(f, a...) IL_DBG(IL_DL_INFO, f, ## a)
+#define D_MAC80211(f, a...) IL_DBG(IL_DL_MAC80211, f, ## a)
+#define D_MACDUMP(f, a...) IL_DBG(IL_DL_MACDUMP, f, ## a)
+#define D_TEMP(f, a...) IL_DBG(IL_DL_TEMP, f, ## a)
+#define D_SCAN(f, a...) IL_DBG(IL_DL_SCAN, f, ## a)
+#define D_RX(f, a...) IL_DBG(IL_DL_RX, f, ## a)
+#define D_TX(f, a...) IL_DBG(IL_DL_TX, f, ## a)
+#define D_ISR(f, a...) IL_DBG(IL_DL_ISR, f, ## a)
+#define D_LED(f, a...) IL_DBG(IL_DL_LED, f, ## a)
+#define D_WEP(f, a...) IL_DBG(IL_DL_WEP, f, ## a)
+#define D_HC(f, a...) IL_DBG(IL_DL_HCMD, f, ## a)
+#define D_HC_DUMP(f, a...) IL_DBG(IL_DL_HCMD_DUMP, f, ## a)
+#define D_EEPROM(f, a...) IL_DBG(IL_DL_EEPROM, f, ## a)
+#define D_CALIB(f, a...) IL_DBG(IL_DL_CALIB, f, ## a)
+#define D_FW(f, a...) IL_DBG(IL_DL_FW, f, ## a)
+#define D_RF_KILL(f, a...) IL_DBG(IL_DL_RF_KILL, f, ## a)
+#define D_DROP(f, a...) IL_DBG(IL_DL_DROP, f, ## a)
+#define D_AP(f, a...) IL_DBG(IL_DL_AP, f, ## a)
+#define D_TXPOWER(f, a...) IL_DBG(IL_DL_TXPOWER, f, ## a)
+#define D_RATE(f, a...) IL_DBG(IL_DL_RATE, f, ## a)
+#define D_NOTIF(f, a...) IL_DBG(IL_DL_NOTIF, f, ## a)
+#define D_ASSOC(f, a...) IL_DBG(IL_DL_ASSOC, f, ## a)
+#define D_HT(f, a...) IL_DBG(IL_DL_HT, f, ## a)
+#define D_STATS(f, a...) IL_DBG(IL_DL_STATS, f, ## a)
+#define D_TX_REPLY(f, a...) IL_DBG(IL_DL_TX_REPLY, f, ## a)
+#define D_QOS(f, a...) IL_DBG(IL_DL_QOS, f, ## a)
+#define D_RADIO(f, a...) IL_DBG(IL_DL_RADIO, f, ## a)
+#define D_POWER(f, a...) IL_DBG(IL_DL_POWER, f, ## a)
+#define D_11H(f, a...) IL_DBG(IL_DL_11H, f, ## a)
+
+#endif /* __il_core_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-csr.h b/drivers/net/wireless/iwlegacy/csr.h
similarity index 84%
rename from drivers/net/wireless/iwlegacy/iwl-csr.h
rename to drivers/net/wireless/iwlegacy/csr.h
index 668a961..9138e15 100644
--- a/drivers/net/wireless/iwlegacy/iwl-csr.h
+++ b/drivers/net/wireless/iwlegacy/csr.h
@@ -60,8 +60,8 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*****************************************************************************/
-#ifndef __iwl_legacy_csr_h__
-#define __iwl_legacy_csr_h__
+#ifndef __il_csr_h__
+#define __il_csr_h__
/*
* CSR (control and status registers)
*
@@ -70,9 +70,9 @@
* low power states due to driver-invoked device resets
* (e.g. CSR_RESET_REG_FLAG_SW_RESET) or uCode-driven power-saving modes.
*
- * Use iwl_write32() and iwl_read32() family to access these registers;
+ * Use _il_wr() and _il_rd() family to access these registers;
* these provide simple PCI bus access, without waking up the MAC.
- * Do not use iwl_legacy_write_direct32() family for these registers;
+ * Do not use il_wr() family for these registers;
* no need to "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ.
* The MAC (uCode processor, etc.) does not need to be powered up for accessing
* the CSR registers.
@@ -82,16 +82,16 @@
*/
#define CSR_BASE (0x000)
-#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
-#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
-#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
-#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
-#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack*/
-#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
-#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc*/
+#define CSR_HW_IF_CONFIG_REG (CSR_BASE+0x000) /* hardware interface config */
+#define CSR_INT_COALESCING (CSR_BASE+0x004) /* accum ints, 32-usec units */
+#define CSR_INT (CSR_BASE+0x008) /* host interrupt status/ack */
+#define CSR_INT_MASK (CSR_BASE+0x00c) /* host interrupt enable */
+#define CSR_FH_INT_STATUS (CSR_BASE+0x010) /* busmaster int status/ack */
+#define CSR_GPIO_IN (CSR_BASE+0x018) /* read external chip pins */
+#define CSR_RESET (CSR_BASE+0x020) /* busmaster enable, NMI, etc */
#define CSR_GP_CNTRL (CSR_BASE+0x024)
-/* 2nd byte of CSR_INT_COALESCING, not accessible via iwl_write32()! */
+/* 2nd byte of CSR_INT_COALESCING, not accessible via _il_wr()! */
#define CSR_INT_PERIODIC_REG (CSR_BASE+0x005)
/*
@@ -166,26 +166,26 @@
#define CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A (0x00080000)
#define CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM (0x00200000)
-#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */
-#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
-#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */
+#define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */
+#define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */
+#define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */
-#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int*/
-#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec*/
+#define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int */
+#define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec */
/* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
* acknowledged (reset) by host writing "1" to flagged bits. */
-#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
-#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */
-#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */
-#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */
-#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */
-#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */
-#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */
-#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */
-#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */
-#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */
-#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */
+#define CSR_INT_BIT_FH_RX (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
+#define CSR_INT_BIT_HW_ERR (1 << 29) /* DMA hardware error FH_INT[31] */
+#define CSR_INT_BIT_RX_PERIODIC (1 << 28) /* Rx periodic */
+#define CSR_INT_BIT_FH_TX (1 << 27) /* Tx DMA FH_INT[1:0] */
+#define CSR_INT_BIT_SCD (1 << 26) /* TXQ pointer advanced */
+#define CSR_INT_BIT_SW_ERR (1 << 25) /* uCode error */
+#define CSR_INT_BIT_RF_KILL (1 << 7) /* HW RFKILL switch GP_CNTRL[27] toggled */
+#define CSR_INT_BIT_CT_KILL (1 << 6) /* Critical temp (chip too hot) rfkill */
+#define CSR_INT_BIT_SW_RX (1 << 3) /* Rx, command responses, 3945 */
+#define CSR_INT_BIT_WAKEUP (1 << 1) /* NIC controller waking up (pwr mgmt) */
+#define CSR_INT_BIT_ALIVE (1 << 0) /* uCode interrupts once it initializes */
#define CSR_INI_SET_MASK (CSR_INT_BIT_FH_RX | \
CSR_INT_BIT_HW_ERR | \
@@ -197,21 +197,20 @@
CSR_INT_BIT_ALIVE)
/* interrupt flags in FH (flow handler) (PCI busmaster DMA) */
-#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */
-#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */
-#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */
-#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */
-#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */
-#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */
-#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */
-#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */
+#define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */
+#define CSR_FH_INT_BIT_HI_PRIOR (1 << 30) /* High priority Rx, bypass coalescing */
+#define CSR39_FH_INT_BIT_RX_CHNL2 (1 << 18) /* Rx channel 2 (3945 only) */
+#define CSR_FH_INT_BIT_RX_CHNL1 (1 << 17) /* Rx channel 1 */
+#define CSR_FH_INT_BIT_RX_CHNL0 (1 << 16) /* Rx channel 0 */
+#define CSR39_FH_INT_BIT_TX_CHNL6 (1 << 6) /* Tx channel 6 (3945 only) */
+#define CSR_FH_INT_BIT_TX_CHNL1 (1 << 1) /* Tx channel 1 */
+#define CSR_FH_INT_BIT_TX_CHNL0 (1 << 0) /* Tx channel 0 */
#define CSR39_FH_INT_RX_MASK (CSR_FH_INT_BIT_HI_PRIOR | \
CSR39_FH_INT_BIT_RX_CHNL2 | \
CSR_FH_INT_BIT_RX_CHNL1 | \
CSR_FH_INT_BIT_RX_CHNL0)
-
#define CSR39_FH_INT_TX_MASK (CSR39_FH_INT_BIT_TX_CHNL6 | \
CSR_FH_INT_BIT_TX_CHNL1 | \
CSR_FH_INT_BIT_TX_CHNL0)
@@ -285,7 +284,6 @@
#define CSR_GP_CNTRL_REG_FLAG_MAC_POWER_SAVE (0x04000000)
#define CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW (0x08000000)
-
/* EEPROM REG */
#define CSR_EEPROM_REG_READ_VALID_MSK (0x00000001)
#define CSR_EEPROM_REG_BIT_CMD (0x00000002)
@@ -293,19 +291,18 @@
#define CSR_EEPROM_REG_MSK_DATA (0xFFFF0000)
/* EEPROM GP */
-#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */
+#define CSR_EEPROM_GP_VALID_MSK (0x00000007) /* signature */
#define CSR_EEPROM_GP_IF_OWNER_MSK (0x00000180)
#define CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K (0x00000002)
#define CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K (0x00000004)
/* GP REG */
-#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */
+#define CSR_GP_REG_POWER_SAVE_STATUS_MSK (0x03000000) /* bit 24/25 */
#define CSR_GP_REG_NO_POWER_SAVE (0x00000000)
#define CSR_GP_REG_MAC_POWER_SAVE (0x01000000)
#define CSR_GP_REG_PHY_POWER_SAVE (0x02000000)
#define CSR_GP_REG_POWER_SAVE_ERROR (0x03000000)
-
/* CSR GIO */
#define CSR_GIO_REG_VAL_L0S_ENABLED (0x00000002)
@@ -357,7 +354,7 @@
/* HPET MEM debug */
#define CSR_DBG_HPET_MEM_REG_VAL (0xFFFF0000)
-/* DRAM INT TABLE */
+/* DRAM INT TBL */
#define CSR_DRAM_INT_TBL_ENABLE (1 << 31)
#define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27)
@@ -368,13 +365,13 @@
* to indirectly access device's internal memory or registers that
* may be powered-down.
*
- * Use iwl_legacy_write_direct32()/iwl_legacy_read_direct32() family
+ * Use il_wr()/il_rd() family
* for these registers;
* host must "grab nic access" via CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ
* to make sure the MAC (uCode processor, etc.) is powered up for accessing
* internal resources.
*
- * Do not use iwl_write32()/iwl_read32() family to access these registers;
+ * Do not use _il_wr()/_il_rd() family to access these registers;
* these provide only simple PCI bus access, without waking up the MAC.
*/
#define HBUS_BASE (0x400)
@@ -411,12 +408,12 @@
#define HBUS_TARG_PRPH_RDAT (HBUS_BASE+0x050)
/*
- * Per-Tx-queue write pointer (index, really!)
- * Indicates index to next TFD that driver will fill (1 past latest filled).
+ * Per-Tx-queue write pointer (idx, really!)
+ * Indicates idx to next TFD that driver will fill (1 past latest filled).
* Bit usage:
- * 0-7: queue write index
+ * 0-7: queue write idx
* 11-8: queue selector
*/
#define HBUS_TARG_WRPTR (HBUS_BASE+0x060)
-#endif /* !__iwl_legacy_csr_h__ */
+#endif /* !__il_csr_h__ */
diff --git a/drivers/net/wireless/iwlegacy/debug.c b/drivers/net/wireless/iwlegacy/debug.c
new file mode 100644
index 0000000..928bdbb
--- /dev/null
+++ b/drivers/net/wireless/iwlegacy/debug.c
@@ -0,0 +1,1410 @@
+/******************************************************************************
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *****************************************************************************/
+#include <linux/ieee80211.h>
+#include <net/mac80211.h>
+
+#include "common.h"
+
+/* create and remove of files */
+#define DEBUGFS_ADD_FILE(name, parent, mode) do { \
+ if (!debugfs_create_file(#name, mode, parent, il, \
+ &il_dbgfs_##name##_ops)) \
+ goto err; \
+} while (0)
+
+#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
+ struct dentry *__tmp; \
+ __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
+ parent, ptr); \
+ if (IS_ERR(__tmp) || !__tmp) \
+ goto err; \
+} while (0)
+
+#define DEBUGFS_ADD_X32(name, parent, ptr) do { \
+ struct dentry *__tmp; \
+ __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
+ parent, ptr); \
+ if (IS_ERR(__tmp) || !__tmp) \
+ goto err; \
+} while (0)
+
+/* file operation */
+#define DEBUGFS_READ_FUNC(name) \
+static ssize_t il_dbgfs_##name##_read(struct file *file, \
+ char __user *user_buf, \
+ size_t count, loff_t *ppos);
+
+#define DEBUGFS_WRITE_FUNC(name) \
+static ssize_t il_dbgfs_##name##_write(struct file *file, \
+ const char __user *user_buf, \
+ size_t count, loff_t *ppos);
+
+static int
+il_dbgfs_open_file_generic(struct inode *inode, struct file *file)
+{
+ file->private_data = inode->i_private;
+ return 0;
+}
+
+#define DEBUGFS_READ_FILE_OPS(name) \
+ DEBUGFS_READ_FUNC(name); \
+static const struct file_operations il_dbgfs_##name##_ops = { \
+ .read = il_dbgfs_##name##_read, \
+ .open = il_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+#define DEBUGFS_WRITE_FILE_OPS(name) \
+ DEBUGFS_WRITE_FUNC(name); \
+static const struct file_operations il_dbgfs_##name##_ops = { \
+ .write = il_dbgfs_##name##_write, \
+ .open = il_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
+ DEBUGFS_READ_FUNC(name); \
+ DEBUGFS_WRITE_FUNC(name); \
+static const struct file_operations il_dbgfs_##name##_ops = { \
+ .write = il_dbgfs_##name##_write, \
+ .read = il_dbgfs_##name##_read, \
+ .open = il_dbgfs_open_file_generic, \
+ .llseek = generic_file_llseek, \
+};
+
+static ssize_t
+il_dbgfs_tx_stats_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ char *buf;
+ int pos = 0;
+
+ int cnt;
+ ssize_t ret;
+ const size_t bufsz =
+ 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+ for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
+ il_get_mgmt_string(cnt), il->tx_stats.mgmt[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
+ for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
+ il_get_ctrl_string(cnt), il->tx_stats.ctrl[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+ il->tx_stats.data_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+ il->tx_stats.data_bytes);
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_clear_traffic_stats_write(struct file *file,
+ const char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ u32 clear_flag;
+ char buf[8];
+ int buf_size;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%x", &clear_flag) != 1)
+ return -EFAULT;
+ il_clear_traffic_stats(il);
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_rx_stats_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ char *buf;
+ int pos = 0;
+ int cnt;
+ ssize_t ret;
+ const size_t bufsz =
+ 100 + sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
+ for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
+ il_get_mgmt_string(cnt), il->rx_stats.mgmt[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
+ for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\t%25s\t\t: %u\n",
+ il_get_ctrl_string(cnt), il->rx_stats.ctrl[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
+ il->rx_stats.data_cnt);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
+ il->rx_stats.data_bytes);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+#define BYTE1_MASK 0x000000ff;
+#define BYTE2_MASK 0x0000ffff;
+#define BYTE3_MASK 0x00ffffff;
+static ssize_t
+il_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ u32 val;
+ char *buf;
+ ssize_t ret;
+ int i;
+ int pos = 0;
+ struct il_priv *il = file->private_data;
+ size_t bufsz;
+
+ /* default is to dump the entire data segment */
+ if (!il->dbgfs_sram_offset && !il->dbgfs_sram_len) {
+ il->dbgfs_sram_offset = 0x800000;
+ if (il->ucode_type == UCODE_INIT)
+ il->dbgfs_sram_len = il->ucode_init_data.len;
+ else
+ il->dbgfs_sram_len = il->ucode_data.len;
+ }
+ bufsz = 30 + il->dbgfs_sram_len * sizeof(char) * 10;
+ buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
+ il->dbgfs_sram_len);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
+ il->dbgfs_sram_offset);
+ for (i = il->dbgfs_sram_len; i > 0; i -= 4) {
+ val =
+ il_read_targ_mem(il,
+ il->dbgfs_sram_offset +
+ il->dbgfs_sram_len - i);
+ if (i < 4) {
+ switch (i) {
+ case 1:
+ val &= BYTE1_MASK;
+ break;
+ case 2:
+ val &= BYTE2_MASK;
+ break;
+ case 3:
+ val &= BYTE3_MASK;
+ break;
+ }
+ }
+ if (!(i % 16))
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_sram_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[64];
+ int buf_size;
+ u32 offset, len;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
+ il->dbgfs_sram_offset = offset;
+ il->dbgfs_sram_len = len;
+ } else {
+ il->dbgfs_sram_offset = 0;
+ il->dbgfs_sram_len = 0;
+ }
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_stations_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ struct il_station_entry *station;
+ int max_sta = il->hw_params.max_stations;
+ char *buf;
+ int i, j, pos = 0;
+ ssize_t ret;
+ /* Add 30 for initial string */
+ const size_t bufsz = 30 + sizeof(char) * 500 * (il->num_stations);
+
+ buf = kmalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
+ il->num_stations);
+
+ for (i = 0; i < max_sta; i++) {
+ station = &il->stations[i];
+ if (!station->used)
+ continue;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "station %d - addr: %pM, flags: %#x\n", i,
+ station->sta.sta.addr,
+ station->sta.station_flags_msk);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "TID\tseq_num\ttxq_id\tframes\ttfds\t");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "start_idx\tbitmap\t\t\trate_n_flags\n");
+
+ for (j = 0; j < MAX_TID_COUNT; j++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
+ j, station->tid[j].seq_number,
+ station->tid[j].agg.txq_id,
+ station->tid[j].agg.frame_count,
+ station->tid[j].tfds_in_queue,
+ station->tid[j].agg.start_idx,
+ station->tid[j].agg.bitmap,
+ station->tid[j].agg.rate_n_flags);
+
+ if (station->tid[j].agg.wait_for_ba)
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " - waitforba");
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_nvm_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ ssize_t ret;
+ struct il_priv *il = file->private_data;
+ int pos = 0, ofs = 0, buf_size = 0;
+ const u8 *ptr;
+ char *buf;
+ u16 eeprom_ver;
+ size_t eeprom_len = il->cfg->base_params->eeprom_size;
+ buf_size = 4 * eeprom_len + 256;
+
+ if (eeprom_len % 16) {
+ IL_ERR("NVM size is not multiple of 16.\n");
+ return -ENODATA;
+ }
+
+ ptr = il->eeprom;
+ if (!ptr) {
+ IL_ERR("Invalid EEPROM memory\n");
+ return -ENOMEM;
+ }
+
+ /* 4 characters for byte 0xYY */
+ buf = kzalloc(buf_size, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+ eeprom_ver = il_eeprom_query16(il, EEPROM_VERSION);
+ pos +=
+ scnprintf(buf + pos, buf_size - pos, "EEPROM " "version: 0x%x\n",
+ eeprom_ver);
+ for (ofs = 0; ofs < eeprom_len; ofs += 16) {
+ pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
+ hex_dump_to_buffer(ptr + ofs, 16, 16, 2, buf + pos,
+ buf_size - pos, 0);
+ pos += strlen(buf + pos);
+ if (buf_size - pos > 0)
+ buf[pos++] = '\n';
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_channels_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ struct ieee80211_channel *channels = NULL;
+ const struct ieee80211_supported_band *supp_band = NULL;
+ int pos = 0, i, bufsz = PAGE_SIZE;
+ char *buf;
+ ssize_t ret;
+
+ if (!test_bit(S_GEO_CONFIGURED, &il->status))
+ return -EAGAIN;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ supp_band = il_get_hw_mode(il, IEEE80211_BAND_2GHZ);
+ if (supp_band) {
+ channels = supp_band->channels;
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 2.4GHz band 802.11bg):\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].hw_value,
+ channels[i].max_power,
+ channels[i].
+ flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].
+ flags & IEEE80211_CHAN_NO_IBSS) ||
+ (channels[i].
+ flags & IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].
+ flags & IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+ }
+ supp_band = il_get_hw_mode(il, IEEE80211_BAND_5GHZ);
+ if (supp_band) {
+ channels = supp_band->channels;
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "Displaying %d channels in 5.2GHz band (802.11a)\n",
+ supp_band->n_channels);
+
+ for (i = 0; i < supp_band->n_channels; i++)
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "%d: %ddBm: BSS%s%s, %s.\n",
+ channels[i].hw_value,
+ channels[i].max_power,
+ channels[i].
+ flags & IEEE80211_CHAN_RADAR ?
+ " (IEEE 802.11h required)" : "",
+ ((channels[i].
+ flags & IEEE80211_CHAN_NO_IBSS) ||
+ (channels[i].
+ flags & IEEE80211_CHAN_RADAR)) ? "" :
+ ", IBSS",
+ channels[i].
+ flags & IEEE80211_CHAN_PASSIVE_SCAN ?
+ "passive only" : "active/passive");
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_status_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ char buf[512];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_HCMD_ACTIVE:\t %d\n",
+ test_bit(S_HCMD_ACTIVE, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_INT_ENABLED:\t %d\n",
+ test_bit(S_INT_ENABLED, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_RF_KILL_HW:\t %d\n",
+ test_bit(S_RF_KILL_HW, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_CT_KILL:\t\t %d\n",
+ test_bit(S_CT_KILL, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_INIT:\t\t %d\n",
+ test_bit(S_INIT, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_ALIVE:\t\t %d\n",
+ test_bit(S_ALIVE, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_READY:\t\t %d\n",
+ test_bit(S_READY, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_TEMPERATURE:\t %d\n",
+ test_bit(S_TEMPERATURE, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_GEO_CONFIGURED:\t %d\n",
+ test_bit(S_GEO_CONFIGURED, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_EXIT_PENDING:\t %d\n",
+ test_bit(S_EXIT_PENDING, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_STATS:\t %d\n",
+ test_bit(S_STATS, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_SCANNING:\t %d\n",
+ test_bit(S_SCANNING, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_SCAN_ABORTING:\t %d\n",
+ test_bit(S_SCAN_ABORTING, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_SCAN_HW:\t\t %d\n",
+ test_bit(S_SCAN_HW, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_POWER_PMI:\t %d\n",
+ test_bit(S_POWER_PMI, &il->status));
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "S_FW_ERROR:\t %d\n",
+ test_bit(S_FW_ERROR, &il->status));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_interrupt_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = 24 * 64; /* 24 items * 64 char per item */
+ ssize_t ret;
+
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Interrupt Statistics Report:\n");
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
+ il->isr_stats.hw);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
+ il->isr_stats.sw);
+ if (il->isr_stats.sw || il->isr_stats.hw) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "\tLast Restarting Code: 0x%X\n",
+ il->isr_stats.err_code);
+ }
+#ifdef CONFIG_IWLEGACY_DEBUG
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
+ il->isr_stats.sch);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
+ il->isr_stats.alive);
+#endif
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "HW RF KILL switch toggled:\t %u\n",
+ il->isr_stats.rfkill);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
+ il->isr_stats.ctkill);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
+ il->isr_stats.wakeup);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Rx command responses:\t\t %u\n",
+ il->isr_stats.rx);
+ for (cnt = 0; cnt < IL_CN_MAX; cnt++) {
+ if (il->isr_stats.handlers[cnt] > 0)
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "\tRx handler[%36s]:\t\t %u\n",
+ il_get_cmd_string(cnt),
+ il->isr_stats.handlers[cnt]);
+ }
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
+ il->isr_stats.tx);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
+ il->isr_stats.unhandled);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_interrupt_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ u32 reset_flag;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%x", &reset_flag) != 1)
+ return -EFAULT;
+ if (reset_flag == 0)
+ il_clear_isr_stats(il);
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_qos_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ struct il_rxon_context *ctx = &il->ctx;
+ int pos = 0, i;
+ char buf[256];
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", ctx->ctxid);
+ for (i = 0; i < AC_NUM; i++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "\tcw_min\tcw_max\taifsn\ttxop\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "AC[%d]\t%u\t%u\t%u\t%u\n", i,
+ ctx->qos_data.def_qos_parm.ac[i].cw_min,
+ ctx->qos_data.def_qos_parm.ac[i].cw_max,
+ ctx->qos_data.def_qos_parm.ac[i].aifsn,
+ ctx->qos_data.def_qos_parm.ac[i].edca_txop);
+ }
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_disable_ht40_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ int ht40;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &ht40) != 1)
+ return -EFAULT;
+ if (!il_is_any_associated(il))
+ il->disable_ht40 = ht40 ? true : false;
+ else {
+ IL_ERR("Sta associated with AP - "
+ "Change to 40MHz channel support is not allowed\n");
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_disable_ht40_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[100];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "11n 40MHz Mode: %s\n",
+ il->disable_ht40 ? "Disabled" : "Enabled");
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+DEBUGFS_READ_WRITE_FILE_OPS(sram);
+DEBUGFS_READ_FILE_OPS(nvm);
+DEBUGFS_READ_FILE_OPS(stations);
+DEBUGFS_READ_FILE_OPS(channels);
+DEBUGFS_READ_FILE_OPS(status);
+DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
+DEBUGFS_READ_FILE_OPS(qos);
+DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
+
+static ssize_t
+il_dbgfs_traffic_log_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ int pos = 0, ofs = 0;
+ int cnt = 0, entry;
+ struct il_tx_queue *txq;
+ struct il_queue *q;
+ struct il_rx_queue *rxq = &il->rxq;
+ char *buf;
+ int bufsz =
+ ((IL_TRAFFIC_ENTRIES * IL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
+ (il->cfg->base_params->num_of_queues * 32 * 8) + 400;
+ const u8 *ptr;
+ ssize_t ret;
+
+ if (!il->txq) {
+ IL_ERR("txq not ready\n");
+ return -EAGAIN;
+ }
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate buffer\n");
+ return -ENOMEM;
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
+ for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+ txq = &il->txq[cnt];
+ q = &txq->q;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "q[%d]: read_ptr: %u, write_ptr: %u\n", cnt,
+ q->read_ptr, q->write_ptr);
+ }
+ if (il->tx_traffic && (il_debug_level & IL_DL_TX)) {
+ ptr = il->tx_traffic;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Tx Traffic idx: %u\n",
+ il->tx_traffic_idx);
+ for (cnt = 0, ofs = 0; cnt < IL_TRAFFIC_ENTRIES; cnt++) {
+ for (entry = 0; entry < IL_TRAFFIC_ENTRY_SIZE / 16;
+ entry++, ofs += 16) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "0x%.4x ",
+ ofs);
+ hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+ buf + pos, bufsz - pos, 0);
+ pos += strlen(buf + pos);
+ if (bufsz - pos > 0)
+ buf[pos++] = '\n';
+ }
+ }
+ }
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "read: %u, write: %u\n",
+ rxq->read, rxq->write);
+
+ if (il->rx_traffic && (il_debug_level & IL_DL_RX)) {
+ ptr = il->rx_traffic;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "Rx Traffic idx: %u\n",
+ il->rx_traffic_idx);
+ for (cnt = 0, ofs = 0; cnt < IL_TRAFFIC_ENTRIES; cnt++) {
+ for (entry = 0; entry < IL_TRAFFIC_ENTRY_SIZE / 16;
+ entry++, ofs += 16) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "0x%.4x ",
+ ofs);
+ hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
+ buf + pos, bufsz - pos, 0);
+ pos += strlen(buf + pos);
+ if (bufsz - pos > 0)
+ buf[pos++] = '\n';
+ }
+ }
+ }
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_traffic_log_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ int traffic_log;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &traffic_log) != 1)
+ return -EFAULT;
+ if (traffic_log == 0)
+ il_reset_traffic_log(il);
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_tx_queue_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ struct il_tx_queue *txq;
+ struct il_queue *q;
+ char *buf;
+ int pos = 0;
+ int cnt;
+ int ret;
+ const size_t bufsz =
+ sizeof(char) * 64 * il->cfg->base_params->num_of_queues;
+
+ if (!il->txq) {
+ IL_ERR("txq not ready\n");
+ return -EAGAIN;
+ }
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ for (cnt = 0; cnt < il->hw_params.max_txq_num; cnt++) {
+ txq = &il->txq[cnt];
+ q = &txq->q;
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "hwq %.2d: read=%u write=%u stop=%d"
+ " swq_id=%#.2x (ac %d/hwq %d)\n", cnt,
+ q->read_ptr, q->write_ptr,
+ !!test_bit(cnt, il->queue_stopped),
+ txq->swq_id, txq->swq_id & 3,
+ (txq->swq_id >> 2) & 0x1f);
+ if (cnt >= 4)
+ continue;
+ /* for the ACs, display the stop count too */
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ " stop-count: %d\n",
+ atomic_read(&il->queue_stop_count[cnt]));
+ }
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_rx_queue_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ struct il_rx_queue *rxq = &il->rxq;
+ char buf[256];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n", rxq->read);
+ pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n", rxq->write);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
+ rxq->free_count);
+ if (rxq->rb_stts) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
+ le16_to_cpu(rxq->rb_stts->
+ closed_rb_num) & 0x0FFF);
+ } else {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "closed_rb_num: Not Allocated\n");
+ }
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_ucode_rx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ return il->cfg->ops->lib->debugfs_ops.rx_stats_read(file, user_buf,
+ count, ppos);
+}
+
+static ssize_t
+il_dbgfs_ucode_tx_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ return il->cfg->ops->lib->debugfs_ops.tx_stats_read(file, user_buf,
+ count, ppos);
+}
+
+static ssize_t
+il_dbgfs_ucode_general_stats_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ return il->cfg->ops->lib->debugfs_ops.general_stats_read(file, user_buf,
+ count, ppos);
+}
+
+static ssize_t
+il_dbgfs_sensitivity_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = sizeof(struct il_sensitivity_data) * 4 + 100;
+ ssize_t ret;
+ struct il_sensitivity_data *data;
+
+ data = &il->sensitivity_data;
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
+ data->auto_corr_ofdm);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc:\t\t %u\n",
+ data->auto_corr_ofdm_mrc);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
+ data->auto_corr_ofdm_x1);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_mrc_x1:\t\t %u\n",
+ data->auto_corr_ofdm_mrc_x1);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
+ data->auto_corr_cck);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
+ data->auto_corr_cck_mrc);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "last_bad_plcp_cnt_ofdm:\t\t %u\n",
+ data->last_bad_plcp_cnt_ofdm);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
+ data->last_fa_cnt_ofdm);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "last_bad_plcp_cnt_cck:\t\t %u\n",
+ data->last_bad_plcp_cnt_cck);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
+ data->last_fa_cnt_cck);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
+ data->nrg_curr_state);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
+ data->nrg_prev_state);
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
+ for (cnt = 0; cnt < 10; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, " %u",
+ data->nrg_value[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
+ for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, " %u",
+ data->nrg_silence_rssi[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
+ data->nrg_silence_ref);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
+ data->nrg_energy_idx);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
+ data->nrg_silence_idx);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
+ data->nrg_th_cck);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "nrg_auto_corr_silence_diff:\t %u\n",
+ data->nrg_auto_corr_silence_diff);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
+ data->num_in_cck_no_fa);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
+ data->nrg_th_ofdm);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_chain_noise_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ int cnt = 0;
+ char *buf;
+ int bufsz = sizeof(struct il_chain_noise_data) * 4 + 100;
+ ssize_t ret;
+ struct il_chain_noise_data *data;
+
+ data = &il->chain_noise_data;
+ buf = kzalloc(bufsz, GFP_KERNEL);
+ if (!buf) {
+ IL_ERR("Can not allocate Buffer\n");
+ return -ENOMEM;
+ }
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
+ data->active_chains);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
+ data->chain_noise_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
+ data->chain_noise_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
+ data->chain_noise_c);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
+ data->chain_signal_a);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
+ data->chain_signal_b);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
+ data->chain_signal_c);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
+ data->beacon_count);
+
+ pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
+ for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, " %u",
+ data->disconn_array[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
+ for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, " %u",
+ data->delta_gain_code[cnt]);
+ }
+ pos += scnprintf(buf + pos, bufsz - pos, "\n");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
+ data->radio_write);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
+ data->state);
+
+ ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+ kfree(buf);
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_power_save_status_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[60];
+ int pos = 0;
+ const size_t bufsz = sizeof(buf);
+ u32 pwrsave_status;
+
+ pwrsave_status =
+ _il_rd(il, CSR_GP_CNTRL) & CSR_GP_REG_POWER_SAVE_STATUS_MSK;
+
+ pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "%s\n",
+ (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
+ (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
+ (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
+ "error");
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_clear_ucode_stats_write(struct file *file,
+ const char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ int clear;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &clear) != 1)
+ return -EFAULT;
+
+ /* make request to uCode to retrieve stats information */
+ mutex_lock(&il->mutex);
+ il_send_stats_request(il, CMD_SYNC, true);
+ mutex_unlock(&il->mutex);
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_rxon_flags_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int len = 0;
+ char buf[20];
+
+ len = sprintf(buf, "0x%04X\n", le32_to_cpu(il->ctx.active.flags));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t
+il_dbgfs_rxon_filter_flags_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int len = 0;
+ char buf[20];
+
+ len =
+ sprintf(buf, "0x%04X\n", le32_to_cpu(il->ctx.active.filter_flags));
+ return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t
+il_dbgfs_fh_reg_read(struct file *file, char __user *user_buf, size_t count,
+ loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char *buf;
+ int pos = 0;
+ ssize_t ret = -EFAULT;
+
+ if (il->cfg->ops->lib->dump_fh) {
+ ret = pos = il->cfg->ops->lib->dump_fh(il, &buf, true);
+ if (buf) {
+ ret =
+ simple_read_from_buffer(user_buf, count, ppos, buf,
+ pos);
+ kfree(buf);
+ }
+ }
+
+ return ret;
+}
+
+static ssize_t
+il_dbgfs_missed_beacon_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char buf[12];
+ const size_t bufsz = sizeof(buf);
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "%d\n",
+ il->missed_beacon_threshold);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_missed_beacon_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ int missed;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &missed) != 1)
+ return -EINVAL;
+
+ if (missed < IL_MISSED_BEACON_THRESHOLD_MIN ||
+ missed > IL_MISSED_BEACON_THRESHOLD_MAX)
+ il->missed_beacon_threshold = IL_MISSED_BEACON_THRESHOLD_DEF;
+ else
+ il->missed_beacon_threshold = missed;
+
+ return count;
+}
+
+static ssize_t
+il_dbgfs_force_reset_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ int pos = 0;
+ char buf[300];
+ const size_t bufsz = sizeof(buf);
+ struct il_force_reset *force_reset;
+
+ force_reset = &il->force_reset;
+
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\tnumber of reset request: %d\n",
+ force_reset->reset_request_count);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request success: %d\n",
+ force_reset->reset_success_count);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos,
+ "\tnumber of reset request reject: %d\n",
+ force_reset->reset_reject_count);
+ pos +=
+ scnprintf(buf + pos, bufsz - pos, "\treset duration: %lu\n",
+ force_reset->reset_duration);
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+il_dbgfs_force_reset_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ int ret;
+ struct il_priv *il = file->private_data;
+
+ ret = il_force_reset(il, true);
+
+ return ret ? ret : count;
+}
+
+static ssize_t
+il_dbgfs_wd_timeout_write(struct file *file, const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+
+ struct il_priv *il = file->private_data;
+ char buf[8];
+ int buf_size;
+ int timeout;
+
+ memset(buf, 0, sizeof(buf));
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+ if (sscanf(buf, "%d", &timeout) != 1)
+ return -EINVAL;
+ if (timeout < 0 || timeout > IL_MAX_WD_TIMEOUT)
+ timeout = IL_DEF_WD_TIMEOUT;
+
+ il->cfg->base_params->wd_timeout = timeout;
+ il_setup_watchdog(il);
+ return count;
+}
+
+DEBUGFS_READ_FILE_OPS(rx_stats);
+DEBUGFS_READ_FILE_OPS(tx_stats);
+DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
+DEBUGFS_READ_FILE_OPS(rx_queue);
+DEBUGFS_READ_FILE_OPS(tx_queue);
+DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
+DEBUGFS_READ_FILE_OPS(ucode_general_stats);
+DEBUGFS_READ_FILE_OPS(sensitivity);
+DEBUGFS_READ_FILE_OPS(chain_noise);
+DEBUGFS_READ_FILE_OPS(power_save_status);
+DEBUGFS_WRITE_FILE_OPS(clear_ucode_stats);
+DEBUGFS_WRITE_FILE_OPS(clear_traffic_stats);
+DEBUGFS_READ_FILE_OPS(fh_reg);
+DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
+DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
+DEBUGFS_READ_FILE_OPS(rxon_flags);
+DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
+DEBUGFS_WRITE_FILE_OPS(wd_timeout);
+
+/*
+ * Create the debugfs files and directories
+ *
+ */
+int
+il_dbgfs_register(struct il_priv *il, const char *name)
+{
+ struct dentry *phyd = il->hw->wiphy->debugfsdir;
+ struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
+
+ dir_drv = debugfs_create_dir(name, phyd);
+ if (!dir_drv)
+ return -ENOMEM;
+
+ il->debugfs_dir = dir_drv;
+
+ dir_data = debugfs_create_dir("data", dir_drv);
+ if (!dir_data)
+ goto err;
+ dir_rf = debugfs_create_dir("rf", dir_drv);
+ if (!dir_rf)
+ goto err;
+ dir_debug = debugfs_create_dir("debug", dir_drv);
+ if (!dir_debug)
+ goto err;
+
+ DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
+ DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(tx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(clear_ucode_stats, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(clear_traffic_stats, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
+
+ if (il->cfg->base_params->sensitivity_calib_by_driver)
+ DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
+ if (il->cfg->base_params->chain_noise_calib_by_driver)
+ DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
+ DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
+ DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
+ if (il->cfg->base_params->sensitivity_calib_by_driver)
+ DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
+ &il->disable_sens_cal);
+ if (il->cfg->base_params->chain_noise_calib_by_driver)
+ DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
+ &il->disable_chain_noise_cal);
+ DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf, &il->disable_tx_power_cal);
+ return 0;
+
+err:
+ IL_ERR("Can't create the debugfs directory\n");
+ il_dbgfs_unregister(il);
+ return -ENOMEM;
+}
+EXPORT_SYMBOL(il_dbgfs_register);
+
+/**
+ * Remove the debugfs files and directories
+ *
+ */
+void
+il_dbgfs_unregister(struct il_priv *il)
+{
+ if (!il->debugfs_dir)
+ return;
+
+ debugfs_remove_recursive(il->debugfs_dir);
+ il->debugfs_dir = NULL;
+}
+EXPORT_SYMBOL(il_dbgfs_unregister);
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c
deleted file mode 100644
index cfabb38..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.c
+++ /dev/null
@@ -1,523 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include "iwl-3945-debugfs.h"
-
-
-static int iwl3945_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
-{
- int p = 0;
-
- p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n",
- le32_to_cpu(priv->_3945.statistics.flag));
- if (le32_to_cpu(priv->_3945.statistics.flag) &
- UCODE_STATISTICS_CLEAR_MSK)
- p += scnprintf(buf + p, bufsz - p,
- "\tStatistics have been cleared\n");
- p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
- (le32_to_cpu(priv->_3945.statistics.flag) &
- UCODE_STATISTICS_FREQUENCY_MSK)
- ? "2.4 GHz" : "5.2 GHz");
- p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
- (le32_to_cpu(priv->_3945.statistics.flag) &
- UCODE_STATISTICS_NARROW_BAND_MSK)
- ? "enabled" : "disabled");
- return p;
-}
-
-ssize_t iwl3945_ucode_rx_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = sizeof(struct iwl39_statistics_rx_phy) * 40 +
- sizeof(struct iwl39_statistics_rx_non_phy) * 40 + 400;
- ssize_t ret;
- struct iwl39_statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm,
- *max_ofdm;
- struct iwl39_statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
- struct iwl39_statistics_rx_non_phy *general, *accum_general;
- struct iwl39_statistics_rx_non_phy *delta_general, *max_general;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /*
- * The statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- ofdm = &priv->_3945.statistics.rx.ofdm;
- cck = &priv->_3945.statistics.rx.cck;
- general = &priv->_3945.statistics.rx.general;
- accum_ofdm = &priv->_3945.accum_statistics.rx.ofdm;
- accum_cck = &priv->_3945.accum_statistics.rx.cck;
- accum_general = &priv->_3945.accum_statistics.rx.general;
- delta_ofdm = &priv->_3945.delta_statistics.rx.ofdm;
- delta_cck = &priv->_3945.delta_statistics.rx.cck;
- delta_general = &priv->_3945.delta_statistics.rx.general;
- max_ofdm = &priv->_3945.max_delta.rx.ofdm;
- max_cck = &priv->_3945.max_delta.rx.cck;
- max_general = &priv->_3945.max_delta.rx.general;
-
- pos += iwl3945_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos, "%-32s current"
- "acumulative delta max\n",
- "Statistics_Rx - OFDM:");
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "ina_cnt:", le32_to_cpu(ofdm->ina_cnt),
- accum_ofdm->ina_cnt,
- delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_cnt:",
- le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
- delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n", "plcp_err:",
- le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
- delta_ofdm->plcp_err, max_ofdm->plcp_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n", "crc32_err:",
- le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
- delta_ofdm->crc32_err, max_ofdm->crc32_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n", "overrun_err:",
- le32_to_cpu(ofdm->overrun_err),
- accum_ofdm->overrun_err, delta_ofdm->overrun_err,
- max_ofdm->overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "early_overrun_err:",
- le32_to_cpu(ofdm->early_overrun_err),
- accum_ofdm->early_overrun_err,
- delta_ofdm->early_overrun_err,
- max_ofdm->early_overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "crc32_good:", le32_to_cpu(ofdm->crc32_good),
- accum_ofdm->crc32_good, delta_ofdm->crc32_good,
- max_ofdm->crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n", "false_alarm_cnt:",
- le32_to_cpu(ofdm->false_alarm_cnt),
- accum_ofdm->false_alarm_cnt,
- delta_ofdm->false_alarm_cnt,
- max_ofdm->false_alarm_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_sync_err_cnt:",
- le32_to_cpu(ofdm->fina_sync_err_cnt),
- accum_ofdm->fina_sync_err_cnt,
- delta_ofdm->fina_sync_err_cnt,
- max_ofdm->fina_sync_err_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sfd_timeout:",
- le32_to_cpu(ofdm->sfd_timeout),
- accum_ofdm->sfd_timeout,
- delta_ofdm->sfd_timeout,
- max_ofdm->sfd_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_timeout:",
- le32_to_cpu(ofdm->fina_timeout),
- accum_ofdm->fina_timeout,
- delta_ofdm->fina_timeout,
- max_ofdm->fina_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "unresponded_rts:",
- le32_to_cpu(ofdm->unresponded_rts),
- accum_ofdm->unresponded_rts,
- delta_ofdm->unresponded_rts,
- max_ofdm->unresponded_rts);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "rxe_frame_lmt_ovrun:",
- le32_to_cpu(ofdm->rxe_frame_limit_overrun),
- accum_ofdm->rxe_frame_limit_overrun,
- delta_ofdm->rxe_frame_limit_overrun,
- max_ofdm->rxe_frame_limit_overrun);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sent_ack_cnt:",
- le32_to_cpu(ofdm->sent_ack_cnt),
- accum_ofdm->sent_ack_cnt,
- delta_ofdm->sent_ack_cnt,
- max_ofdm->sent_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sent_cts_cnt:",
- le32_to_cpu(ofdm->sent_cts_cnt),
- accum_ofdm->sent_cts_cnt,
- delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
-
- pos += scnprintf(buf + pos, bufsz - pos, "%-32s current"
- "acumulative delta max\n",
- "Statistics_Rx - CCK:");
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "ina_cnt:",
- le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
- delta_cck->ina_cnt, max_cck->ina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_cnt:",
- le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
- delta_cck->fina_cnt, max_cck->fina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "plcp_err:",
- le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
- delta_cck->plcp_err, max_cck->plcp_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "crc32_err:",
- le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
- delta_cck->crc32_err, max_cck->crc32_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "overrun_err:",
- le32_to_cpu(cck->overrun_err),
- accum_cck->overrun_err,
- delta_cck->overrun_err, max_cck->overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "early_overrun_err:",
- le32_to_cpu(cck->early_overrun_err),
- accum_cck->early_overrun_err,
- delta_cck->early_overrun_err,
- max_cck->early_overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "crc32_good:",
- le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
- delta_cck->crc32_good,
- max_cck->crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "false_alarm_cnt:",
- le32_to_cpu(cck->false_alarm_cnt),
- accum_cck->false_alarm_cnt,
- delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_sync_err_cnt:",
- le32_to_cpu(cck->fina_sync_err_cnt),
- accum_cck->fina_sync_err_cnt,
- delta_cck->fina_sync_err_cnt,
- max_cck->fina_sync_err_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sfd_timeout:",
- le32_to_cpu(cck->sfd_timeout),
- accum_cck->sfd_timeout,
- delta_cck->sfd_timeout, max_cck->sfd_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "fina_timeout:",
- le32_to_cpu(cck->fina_timeout),
- accum_cck->fina_timeout,
- delta_cck->fina_timeout, max_cck->fina_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "unresponded_rts:",
- le32_to_cpu(cck->unresponded_rts),
- accum_cck->unresponded_rts,
- delta_cck->unresponded_rts,
- max_cck->unresponded_rts);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "rxe_frame_lmt_ovrun:",
- le32_to_cpu(cck->rxe_frame_limit_overrun),
- accum_cck->rxe_frame_limit_overrun,
- delta_cck->rxe_frame_limit_overrun,
- max_cck->rxe_frame_limit_overrun);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sent_ack_cnt:",
- le32_to_cpu(cck->sent_ack_cnt),
- accum_cck->sent_ack_cnt,
- delta_cck->sent_ack_cnt,
- max_cck->sent_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sent_cts_cnt:",
- le32_to_cpu(cck->sent_cts_cnt),
- accum_cck->sent_cts_cnt,
- delta_cck->sent_cts_cnt,
- max_cck->sent_cts_cnt);
-
- pos += scnprintf(buf + pos, bufsz - pos, "%-32s current"
- "acumulative delta max\n",
- "Statistics_Rx - GENERAL:");
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "bogus_cts:",
- le32_to_cpu(general->bogus_cts),
- accum_general->bogus_cts,
- delta_general->bogus_cts, max_general->bogus_cts);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "bogus_ack:",
- le32_to_cpu(general->bogus_ack),
- accum_general->bogus_ack,
- delta_general->bogus_ack, max_general->bogus_ack);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "non_bssid_frames:",
- le32_to_cpu(general->non_bssid_frames),
- accum_general->non_bssid_frames,
- delta_general->non_bssid_frames,
- max_general->non_bssid_frames);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "filtered_frames:",
- le32_to_cpu(general->filtered_frames),
- accum_general->filtered_frames,
- delta_general->filtered_frames,
- max_general->filtered_frames);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "non_channel_beacons:",
- le32_to_cpu(general->non_channel_beacons),
- accum_general->non_channel_beacons,
- delta_general->non_channel_beacons,
- max_general->non_channel_beacons);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-ssize_t iwl3945_ucode_tx_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = (sizeof(struct iwl39_statistics_tx) * 48) + 250;
- ssize_t ret;
- struct iwl39_statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /*
- * The statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- tx = &priv->_3945.statistics.tx;
- accum_tx = &priv->_3945.accum_statistics.tx;
- delta_tx = &priv->_3945.delta_statistics.tx;
- max_tx = &priv->_3945.max_delta.tx;
- pos += iwl3945_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos, "%-32s current"
- "acumulative delta max\n",
- "Statistics_Tx:");
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "preamble:",
- le32_to_cpu(tx->preamble_cnt),
- accum_tx->preamble_cnt,
- delta_tx->preamble_cnt, max_tx->preamble_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "rx_detected_cnt:",
- le32_to_cpu(tx->rx_detected_cnt),
- accum_tx->rx_detected_cnt,
- delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "bt_prio_defer_cnt:",
- le32_to_cpu(tx->bt_prio_defer_cnt),
- accum_tx->bt_prio_defer_cnt,
- delta_tx->bt_prio_defer_cnt,
- max_tx->bt_prio_defer_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "bt_prio_kill_cnt:",
- le32_to_cpu(tx->bt_prio_kill_cnt),
- accum_tx->bt_prio_kill_cnt,
- delta_tx->bt_prio_kill_cnt,
- max_tx->bt_prio_kill_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "few_bytes_cnt:",
- le32_to_cpu(tx->few_bytes_cnt),
- accum_tx->few_bytes_cnt,
- delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "cts_timeout:",
- le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
- delta_tx->cts_timeout, max_tx->cts_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "ack_timeout:",
- le32_to_cpu(tx->ack_timeout),
- accum_tx->ack_timeout,
- delta_tx->ack_timeout, max_tx->ack_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "expected_ack_cnt:",
- le32_to_cpu(tx->expected_ack_cnt),
- accum_tx->expected_ack_cnt,
- delta_tx->expected_ack_cnt,
- max_tx->expected_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "actual_ack_cnt:",
- le32_to_cpu(tx->actual_ack_cnt),
- accum_tx->actual_ack_cnt,
- delta_tx->actual_ack_cnt,
- max_tx->actual_ack_cnt);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-ssize_t iwl3945_ucode_general_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = sizeof(struct iwl39_statistics_general) * 10 + 300;
- ssize_t ret;
- struct iwl39_statistics_general *general, *accum_general;
- struct iwl39_statistics_general *delta_general, *max_general;
- struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
- struct iwl39_statistics_div *div, *accum_div, *delta_div, *max_div;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /*
- * The statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- general = &priv->_3945.statistics.general;
- dbg = &priv->_3945.statistics.general.dbg;
- div = &priv->_3945.statistics.general.div;
- accum_general = &priv->_3945.accum_statistics.general;
- delta_general = &priv->_3945.delta_statistics.general;
- max_general = &priv->_3945.max_delta.general;
- accum_dbg = &priv->_3945.accum_statistics.general.dbg;
- delta_dbg = &priv->_3945.delta_statistics.general.dbg;
- max_dbg = &priv->_3945.max_delta.general.dbg;
- accum_div = &priv->_3945.accum_statistics.general.div;
- delta_div = &priv->_3945.delta_statistics.general.div;
- max_div = &priv->_3945.max_delta.general.div;
- pos += iwl3945_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos, "%-32s current"
- "acumulative delta max\n",
- "Statistics_General:");
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "burst_check:",
- le32_to_cpu(dbg->burst_check),
- accum_dbg->burst_check,
- delta_dbg->burst_check, max_dbg->burst_check);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "burst_count:",
- le32_to_cpu(dbg->burst_count),
- accum_dbg->burst_count,
- delta_dbg->burst_count, max_dbg->burst_count);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "sleep_time:",
- le32_to_cpu(general->sleep_time),
- accum_general->sleep_time,
- delta_general->sleep_time, max_general->sleep_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "slots_out:",
- le32_to_cpu(general->slots_out),
- accum_general->slots_out,
- delta_general->slots_out, max_general->slots_out);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "slots_idle:",
- le32_to_cpu(general->slots_idle),
- accum_general->slots_idle,
- delta_general->slots_idle, max_general->slots_idle);
- pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
- le32_to_cpu(general->ttl_timestamp));
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "tx_on_a:",
- le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
- delta_div->tx_on_a, max_div->tx_on_a);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "tx_on_b:",
- le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
- delta_div->tx_on_b, max_div->tx_on_b);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "exec_time:",
- le32_to_cpu(div->exec_time), accum_div->exec_time,
- delta_div->exec_time, max_div->exec_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- " %-30s %10u %10u %10u %10u\n",
- "probe_time:",
- le32_to_cpu(div->probe_time), accum_div->probe_time,
- delta_div->probe_time, max_div->probe_time);
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h b/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h
deleted file mode 100644
index 8fef4b3..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-debugfs.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-debug.h"
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-ssize_t iwl3945_ucode_rx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
-ssize_t iwl3945_ucode_tx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
-ssize_t iwl3945_ucode_general_stats_read(struct file *file,
- char __user *user_buf, size_t count,
- loff_t *ppos);
-#else
-static ssize_t iwl3945_ucode_rx_stats_read(struct file *file,
- char __user *user_buf, size_t count,
- loff_t *ppos)
-{
- return 0;
-}
-static ssize_t iwl3945_ucode_tx_stats_read(struct file *file,
- char __user *user_buf, size_t count,
- loff_t *ppos)
-{
- return 0;
-}
-static ssize_t iwl3945_ucode_general_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- return 0;
-}
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-fh.h b/drivers/net/wireless/iwlegacy/iwl-3945-fh.h
deleted file mode 100644
index 836c991..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-fh.h
+++ /dev/null
@@ -1,187 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-#ifndef __iwl_3945_fh_h__
-#define __iwl_3945_fh_h__
-
-/************************************/
-/* iwl3945 Flow Handler Definitions */
-/************************************/
-
-/**
- * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
- * Addresses are offsets from device's PCI hardware base address.
- */
-#define FH39_MEM_LOWER_BOUND (0x0800)
-#define FH39_MEM_UPPER_BOUND (0x1000)
-
-#define FH39_CBCC_TABLE (FH39_MEM_LOWER_BOUND + 0x140)
-#define FH39_TFDB_TABLE (FH39_MEM_LOWER_BOUND + 0x180)
-#define FH39_RCSR_TABLE (FH39_MEM_LOWER_BOUND + 0x400)
-#define FH39_RSSR_TABLE (FH39_MEM_LOWER_BOUND + 0x4c0)
-#define FH39_TCSR_TABLE (FH39_MEM_LOWER_BOUND + 0x500)
-#define FH39_TSSR_TABLE (FH39_MEM_LOWER_BOUND + 0x680)
-
-/* TFDB (Transmit Frame Buffer Descriptor) */
-#define FH39_TFDB(_ch, buf) (FH39_TFDB_TABLE + \
- ((_ch) * 2 + (buf)) * 0x28)
-#define FH39_TFDB_CHNL_BUF_CTRL_REG(_ch) (FH39_TFDB_TABLE + 0x50 * (_ch))
-
-/* CBCC channel is [0,2] */
-#define FH39_CBCC(_ch) (FH39_CBCC_TABLE + (_ch) * 0x8)
-#define FH39_CBCC_CTRL(_ch) (FH39_CBCC(_ch) + 0x00)
-#define FH39_CBCC_BASE(_ch) (FH39_CBCC(_ch) + 0x04)
-
-/* RCSR channel is [0,2] */
-#define FH39_RCSR(_ch) (FH39_RCSR_TABLE + (_ch) * 0x40)
-#define FH39_RCSR_CONFIG(_ch) (FH39_RCSR(_ch) + 0x00)
-#define FH39_RCSR_RBD_BASE(_ch) (FH39_RCSR(_ch) + 0x04)
-#define FH39_RCSR_WPTR(_ch) (FH39_RCSR(_ch) + 0x20)
-#define FH39_RCSR_RPTR_ADDR(_ch) (FH39_RCSR(_ch) + 0x24)
-
-#define FH39_RSCSR_CHNL0_WPTR (FH39_RCSR_WPTR(0))
-
-/* RSSR */
-#define FH39_RSSR_CTRL (FH39_RSSR_TABLE + 0x000)
-#define FH39_RSSR_STATUS (FH39_RSSR_TABLE + 0x004)
-
-/* TCSR */
-#define FH39_TCSR(_ch) (FH39_TCSR_TABLE + (_ch) * 0x20)
-#define FH39_TCSR_CONFIG(_ch) (FH39_TCSR(_ch) + 0x00)
-#define FH39_TCSR_CREDIT(_ch) (FH39_TCSR(_ch) + 0x04)
-#define FH39_TCSR_BUFF_STTS(_ch) (FH39_TCSR(_ch) + 0x08)
-
-/* TSSR */
-#define FH39_TSSR_CBB_BASE (FH39_TSSR_TABLE + 0x000)
-#define FH39_TSSR_MSG_CONFIG (FH39_TSSR_TABLE + 0x008)
-#define FH39_TSSR_TX_STATUS (FH39_TSSR_TABLE + 0x010)
-
-
-/* DBM */
-
-#define FH39_SRVC_CHNL (6)
-
-#define FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE (20)
-#define FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH (4)
-
-#define FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN (0x08000000)
-
-#define FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE (0x80000000)
-
-#define FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE (0x20000000)
-
-#define FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 (0x01000000)
-
-#define FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST (0x00001000)
-
-#define FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH (0x00000000)
-
-#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
-#define FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRIVER (0x00000001)
-
-#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE_VAL (0x00000000)
-#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL (0x00000008)
-
-#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
-
-#define FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
-
-#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
-#define FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
-
-#define FH39_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00004000)
-
-#define FH39_TCSR_CHNL_TX_BUF_STS_REG_BIT_TFDB_WPTR (0x00000001)
-
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON (0xFF000000)
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON (0x00FF0000)
-
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B (0x00000400)
-
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON (0x00000100)
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON (0x00000080)
-
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH (0x00000020)
-#define FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH (0x00000005)
-
-#define FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) (BIT(_ch) << 24)
-#define FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch) (BIT(_ch) << 16)
-
-#define FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_ch) \
- (FH39_TSSR_TX_STATUS_REG_BIT_BUFS_EMPTY(_ch) | \
- FH39_TSSR_TX_STATUS_REG_BIT_NO_PEND_REQ(_ch))
-
-#define FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
-
-struct iwl3945_tfd_tb {
- __le32 addr;
- __le32 len;
-} __packed;
-
-struct iwl3945_tfd {
- __le32 control_flags;
- struct iwl3945_tfd_tb tbs[4];
- u8 __pad[28];
-} __packed;
-
-
-#endif /* __iwl_3945_fh_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-hw.h b/drivers/net/wireless/iwlegacy/iwl-3945-hw.h
deleted file mode 100644
index 5c3a68d..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-hw.h
+++ /dev/null
@@ -1,291 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-/*
- * Please use this file (iwl-3945-hw.h) only for hardware-related definitions.
- * Please use iwl-commands.h for uCode API definitions.
- * Please use iwl-3945.h for driver implementation definitions.
- */
-
-#ifndef __iwl_3945_hw__
-#define __iwl_3945_hw__
-
-#include "iwl-eeprom.h"
-
-/* RSSI to dBm */
-#define IWL39_RSSI_OFFSET 95
-
-/*
- * EEPROM related constants, enums, and structures.
- */
-#define EEPROM_SKU_CAP_OP_MODE_MRC (1 << 7)
-
-/*
- * Mapping of a Tx power level, at factory calibration temperature,
- * to a radio/DSP gain table index.
- * One for each of 5 "sample" power levels in each band.
- * v_det is measured at the factory, using the 3945's built-in power amplifier
- * (PA) output voltage detector. This same detector is used during Tx of
- * long packets in normal operation to provide feedback as to proper output
- * level.
- * Data copied from EEPROM.
- * DO NOT ALTER THIS STRUCTURE!!!
- */
-struct iwl3945_eeprom_txpower_sample {
- u8 gain_index; /* index into power (gain) setup table ... */
- s8 power; /* ... for this pwr level for this chnl group */
- u16 v_det; /* PA output voltage */
-} __packed;
-
-/*
- * Mappings of Tx power levels -> nominal radio/DSP gain table indexes.
- * One for each channel group (a.k.a. "band") (1 for BG, 4 for A).
- * Tx power setup code interpolates between the 5 "sample" power levels
- * to determine the nominal setup for a requested power level.
- * Data copied from EEPROM.
- * DO NOT ALTER THIS STRUCTURE!!!
- */
-struct iwl3945_eeprom_txpower_group {
- struct iwl3945_eeprom_txpower_sample samples[5]; /* 5 power levels */
- s32 a, b, c, d, e; /* coefficients for voltage->power
- * formula (signed) */
- s32 Fa, Fb, Fc, Fd, Fe; /* these modify coeffs based on
- * frequency (signed) */
- s8 saturation_power; /* highest power possible by h/w in this
- * band */
- u8 group_channel; /* "representative" channel # in this band */
- s16 temperature; /* h/w temperature at factory calib this band
- * (signed) */
-} __packed;
-
-/*
- * Temperature-based Tx-power compensation data, not band-specific.
- * These coefficients are use to modify a/b/c/d/e coeffs based on
- * difference between current temperature and factory calib temperature.
- * Data copied from EEPROM.
- */
-struct iwl3945_eeprom_temperature_corr {
- u32 Ta;
- u32 Tb;
- u32 Tc;
- u32 Td;
- u32 Te;
-} __packed;
-
-/*
- * EEPROM map
- */
-struct iwl3945_eeprom {
- u8 reserved0[16];
- u16 device_id; /* abs.ofs: 16 */
- u8 reserved1[2];
- u16 pmc; /* abs.ofs: 20 */
- u8 reserved2[20];
- u8 mac_address[6]; /* abs.ofs: 42 */
- u8 reserved3[58];
- u16 board_revision; /* abs.ofs: 106 */
- u8 reserved4[11];
- u8 board_pba_number[9]; /* abs.ofs: 119 */
- u8 reserved5[8];
- u16 version; /* abs.ofs: 136 */
- u8 sku_cap; /* abs.ofs: 138 */
- u8 leds_mode; /* abs.ofs: 139 */
- u16 oem_mode;
- u16 wowlan_mode; /* abs.ofs: 142 */
- u16 leds_time_interval; /* abs.ofs: 144 */
- u8 leds_off_time; /* abs.ofs: 146 */
- u8 leds_on_time; /* abs.ofs: 147 */
- u8 almgor_m_version; /* abs.ofs: 148 */
- u8 antenna_switch_type; /* abs.ofs: 149 */
- u8 reserved6[42];
- u8 sku_id[4]; /* abs.ofs: 192 */
-
-/*
- * Per-channel regulatory data.
- *
- * Each channel that *might* be supported by 3945 has a fixed location
- * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
- * txpower (MSB).
- *
- * Entries immediately below are for 20 MHz channel width.
- *
- * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- */
- u16 band_1_count; /* abs.ofs: 196 */
- struct iwl_eeprom_channel band_1_channels[14]; /* abs.ofs: 198 */
-
-/*
- * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
- * 5.0 GHz channels 7, 8, 11, 12, 16
- * (4915-5080MHz) (none of these is ever supported)
- */
- u16 band_2_count; /* abs.ofs: 226 */
- struct iwl_eeprom_channel band_2_channels[13]; /* abs.ofs: 228 */
-
-/*
- * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
- * (5170-5320MHz)
- */
- u16 band_3_count; /* abs.ofs: 254 */
- struct iwl_eeprom_channel band_3_channels[12]; /* abs.ofs: 256 */
-
-/*
- * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
- * (5500-5700MHz)
- */
- u16 band_4_count; /* abs.ofs: 280 */
- struct iwl_eeprom_channel band_4_channels[11]; /* abs.ofs: 282 */
-
-/*
- * 5.7 GHz channels 145, 149, 153, 157, 161, 165
- * (5725-5825MHz)
- */
- u16 band_5_count; /* abs.ofs: 304 */
- struct iwl_eeprom_channel band_5_channels[6]; /* abs.ofs: 306 */
-
- u8 reserved9[194];
-
-/*
- * 3945 Txpower calibration data.
- */
-#define IWL_NUM_TX_CALIB_GROUPS 5
- struct iwl3945_eeprom_txpower_group groups[IWL_NUM_TX_CALIB_GROUPS];
-/* abs.ofs: 512 */
- struct iwl3945_eeprom_temperature_corr corrections; /* abs.ofs: 832 */
- u8 reserved16[172]; /* fill out to full 1024 byte block */
-} __packed;
-
-#define IWL3945_EEPROM_IMG_SIZE 1024
-
-/* End of EEPROM */
-
-#define PCI_CFG_REV_ID_BIT_BASIC_SKU (0x40) /* bit 6 */
-#define PCI_CFG_REV_ID_BIT_RTP (0x80) /* bit 7 */
-
-/* 4 DATA + 1 CMD. There are 2 HCCA queues that are not used. */
-#define IWL39_NUM_QUEUES 5
-#define IWL39_CMD_QUEUE_NUM 4
-
-#define IWL_DEFAULT_TX_RETRY 15
-
-/*********************************************/
-
-#define RFD_SIZE 4
-#define NUM_TFD_CHUNKS 4
-
-#define RX_QUEUE_SIZE 256
-#define RX_QUEUE_MASK 255
-#define RX_QUEUE_SIZE_LOG 8
-
-#define U32_PAD(n) ((4-(n))&0x3)
-
-#define TFD_CTL_COUNT_SET(n) (n << 24)
-#define TFD_CTL_COUNT_GET(ctl) ((ctl >> 24) & 7)
-#define TFD_CTL_PAD_SET(n) (n << 28)
-#define TFD_CTL_PAD_GET(ctl) (ctl >> 28)
-
-/* Sizes and addresses for instruction and data memory (SRAM) in
- * 3945's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
-#define IWL39_RTC_INST_LOWER_BOUND (0x000000)
-#define IWL39_RTC_INST_UPPER_BOUND (0x014000)
-
-#define IWL39_RTC_DATA_LOWER_BOUND (0x800000)
-#define IWL39_RTC_DATA_UPPER_BOUND (0x808000)
-
-#define IWL39_RTC_INST_SIZE (IWL39_RTC_INST_UPPER_BOUND - \
- IWL39_RTC_INST_LOWER_BOUND)
-#define IWL39_RTC_DATA_SIZE (IWL39_RTC_DATA_UPPER_BOUND - \
- IWL39_RTC_DATA_LOWER_BOUND)
-
-#define IWL39_MAX_INST_SIZE IWL39_RTC_INST_SIZE
-#define IWL39_MAX_DATA_SIZE IWL39_RTC_DATA_SIZE
-
-/* Size of uCode instruction memory in bootstrap state machine */
-#define IWL39_MAX_BSM_SIZE IWL39_RTC_INST_SIZE
-
-static inline int iwl3945_hw_valid_rtc_data_addr(u32 addr)
-{
- return (addr >= IWL39_RTC_DATA_LOWER_BOUND) &&
- (addr < IWL39_RTC_DATA_UPPER_BOUND);
-}
-
-/* Base physical address of iwl3945_shared is provided to FH_TSSR_CBB_BASE
- * and &iwl3945_shared.rx_read_ptr[0] is provided to FH_RCSR_RPTR_ADDR(0) */
-struct iwl3945_shared {
- __le32 tx_base_ptr[8];
-} __packed;
-
-static inline u8 iwl3945_hw_get_rate(__le16 rate_n_flags)
-{
- return le16_to_cpu(rate_n_flags) & 0xFF;
-}
-
-static inline u16 iwl3945_hw_get_rate_n_flags(__le16 rate_n_flags)
-{
- return le16_to_cpu(rate_n_flags);
-}
-
-static inline __le16 iwl3945_hw_set_rate_n_flags(u8 rate, u16 flags)
-{
- return cpu_to_le16((u16)rate|flags);
-}
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-led.c b/drivers/net/wireless/iwlegacy/iwl-3945-led.c
deleted file mode 100644
index 7a7f0f3..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-led.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <asm/unaligned.h>
-
-#include "iwl-commands.h"
-#include "iwl-3945.h"
-#include "iwl-core.h"
-#include "iwl-dev.h"
-#include "iwl-3945-led.h"
-
-
-/* Send led command */
-static int iwl3945_send_led_cmd(struct iwl_priv *priv,
- struct iwl_led_cmd *led_cmd)
-{
- struct iwl_host_cmd cmd = {
- .id = REPLY_LEDS_CMD,
- .len = sizeof(struct iwl_led_cmd),
- .data = led_cmd,
- .flags = CMD_ASYNC,
- .callback = NULL,
- };
-
- return iwl_legacy_send_cmd(priv, &cmd);
-}
-
-const struct iwl_led_ops iwl3945_led_ops = {
- .cmd = iwl3945_send_led_cmd,
-};
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-led.h b/drivers/net/wireless/iwlegacy/iwl-3945-led.h
deleted file mode 100644
index 9671627..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-led.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_3945_led_h__
-#define __iwl_3945_led_h__
-
-extern const struct iwl_led_ops iwl3945_led_ops;
-
-#endif /* __iwl_3945_led_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c b/drivers/net/wireless/iwlegacy/iwl-3945-rs.c
deleted file mode 100644
index 8faeaf2..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945-rs.c
+++ /dev/null
@@ -1,996 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <net/mac80211.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-
-#include <linux/workqueue.h>
-
-#include "iwl-commands.h"
-#include "iwl-3945.h"
-#include "iwl-sta.h"
-
-#define RS_NAME "iwl-3945-rs"
-
-static s32 iwl3945_expected_tpt_g[IWL_RATE_COUNT_3945] = {
- 7, 13, 35, 58, 0, 0, 76, 104, 130, 168, 191, 202
-};
-
-static s32 iwl3945_expected_tpt_g_prot[IWL_RATE_COUNT_3945] = {
- 7, 13, 35, 58, 0, 0, 0, 80, 93, 113, 123, 125
-};
-
-static s32 iwl3945_expected_tpt_a[IWL_RATE_COUNT_3945] = {
- 0, 0, 0, 0, 40, 57, 72, 98, 121, 154, 177, 186
-};
-
-static s32 iwl3945_expected_tpt_b[IWL_RATE_COUNT_3945] = {
- 7, 13, 35, 58, 0, 0, 0, 0, 0, 0, 0, 0
-};
-
-struct iwl3945_tpt_entry {
- s8 min_rssi;
- u8 index;
-};
-
-static struct iwl3945_tpt_entry iwl3945_tpt_table_a[] = {
- {-60, IWL_RATE_54M_INDEX},
- {-64, IWL_RATE_48M_INDEX},
- {-72, IWL_RATE_36M_INDEX},
- {-80, IWL_RATE_24M_INDEX},
- {-84, IWL_RATE_18M_INDEX},
- {-85, IWL_RATE_12M_INDEX},
- {-87, IWL_RATE_9M_INDEX},
- {-89, IWL_RATE_6M_INDEX}
-};
-
-static struct iwl3945_tpt_entry iwl3945_tpt_table_g[] = {
- {-60, IWL_RATE_54M_INDEX},
- {-64, IWL_RATE_48M_INDEX},
- {-68, IWL_RATE_36M_INDEX},
- {-80, IWL_RATE_24M_INDEX},
- {-84, IWL_RATE_18M_INDEX},
- {-85, IWL_RATE_12M_INDEX},
- {-86, IWL_RATE_11M_INDEX},
- {-88, IWL_RATE_5M_INDEX},
- {-90, IWL_RATE_2M_INDEX},
- {-92, IWL_RATE_1M_INDEX}
-};
-
-#define IWL_RATE_MAX_WINDOW 62
-#define IWL_RATE_FLUSH (3*HZ)
-#define IWL_RATE_WIN_FLUSH (HZ/2)
-#define IWL39_RATE_HIGH_TH 11520
-#define IWL_SUCCESS_UP_TH 8960
-#define IWL_SUCCESS_DOWN_TH 10880
-#define IWL_RATE_MIN_FAILURE_TH 6
-#define IWL_RATE_MIN_SUCCESS_TH 8
-#define IWL_RATE_DECREASE_TH 1920
-#define IWL_RATE_RETRY_TH 15
-
-static u8 iwl3945_get_rate_index_by_rssi(s32 rssi, enum ieee80211_band band)
-{
- u32 index = 0;
- u32 table_size = 0;
- struct iwl3945_tpt_entry *tpt_table = NULL;
-
- if ((rssi < IWL_MIN_RSSI_VAL) || (rssi > IWL_MAX_RSSI_VAL))
- rssi = IWL_MIN_RSSI_VAL;
-
- switch (band) {
- case IEEE80211_BAND_2GHZ:
- tpt_table = iwl3945_tpt_table_g;
- table_size = ARRAY_SIZE(iwl3945_tpt_table_g);
- break;
-
- case IEEE80211_BAND_5GHZ:
- tpt_table = iwl3945_tpt_table_a;
- table_size = ARRAY_SIZE(iwl3945_tpt_table_a);
- break;
-
- default:
- BUG();
- break;
- }
-
- while ((index < table_size) && (rssi < tpt_table[index].min_rssi))
- index++;
-
- index = min(index, (table_size - 1));
-
- return tpt_table[index].index;
-}
-
-static void iwl3945_clear_window(struct iwl3945_rate_scale_data *window)
-{
- window->data = 0;
- window->success_counter = 0;
- window->success_ratio = -1;
- window->counter = 0;
- window->average_tpt = IWL_INVALID_VALUE;
- window->stamp = 0;
-}
-
-/**
- * iwl3945_rate_scale_flush_windows - flush out the rate scale windows
- *
- * Returns the number of windows that have gathered data but were
- * not flushed. If there were any that were not flushed, then
- * reschedule the rate flushing routine.
- */
-static int iwl3945_rate_scale_flush_windows(struct iwl3945_rs_sta *rs_sta)
-{
- int unflushed = 0;
- int i;
- unsigned long flags;
- struct iwl_priv *priv __maybe_unused = rs_sta->priv;
-
- /*
- * For each rate, if we have collected data on that rate
- * and it has been more than IWL_RATE_WIN_FLUSH
- * since we flushed, clear out the gathered statistics
- */
- for (i = 0; i < IWL_RATE_COUNT_3945; i++) {
- if (!rs_sta->win[i].counter)
- continue;
-
- spin_lock_irqsave(&rs_sta->lock, flags);
- if (time_after(jiffies, rs_sta->win[i].stamp +
- IWL_RATE_WIN_FLUSH)) {
- IWL_DEBUG_RATE(priv, "flushing %d samples of rate "
- "index %d\n",
- rs_sta->win[i].counter, i);
- iwl3945_clear_window(&rs_sta->win[i]);
- } else
- unflushed++;
- spin_unlock_irqrestore(&rs_sta->lock, flags);
- }
-
- return unflushed;
-}
-
-#define IWL_RATE_FLUSH_MAX 5000 /* msec */
-#define IWL_RATE_FLUSH_MIN 50 /* msec */
-#define IWL_AVERAGE_PACKETS 1500
-
-static void iwl3945_bg_rate_scale_flush(unsigned long data)
-{
- struct iwl3945_rs_sta *rs_sta = (void *)data;
- struct iwl_priv *priv __maybe_unused = rs_sta->priv;
- int unflushed = 0;
- unsigned long flags;
- u32 packet_count, duration, pps;
-
- IWL_DEBUG_RATE(priv, "enter\n");
-
- unflushed = iwl3945_rate_scale_flush_windows(rs_sta);
-
- spin_lock_irqsave(&rs_sta->lock, flags);
-
- /* Number of packets Rx'd since last time this timer ran */
- packet_count = (rs_sta->tx_packets - rs_sta->last_tx_packets) + 1;
-
- rs_sta->last_tx_packets = rs_sta->tx_packets + 1;
-
- if (unflushed) {
- duration =
- jiffies_to_msecs(jiffies - rs_sta->last_partial_flush);
-
- IWL_DEBUG_RATE(priv, "Tx'd %d packets in %dms\n",
- packet_count, duration);
-
- /* Determine packets per second */
- if (duration)
- pps = (packet_count * 1000) / duration;
- else
- pps = 0;
-
- if (pps) {
- duration = (IWL_AVERAGE_PACKETS * 1000) / pps;
- if (duration < IWL_RATE_FLUSH_MIN)
- duration = IWL_RATE_FLUSH_MIN;
- else if (duration > IWL_RATE_FLUSH_MAX)
- duration = IWL_RATE_FLUSH_MAX;
- } else
- duration = IWL_RATE_FLUSH_MAX;
-
- rs_sta->flush_time = msecs_to_jiffies(duration);
-
- IWL_DEBUG_RATE(priv, "new flush period: %d msec ave %d\n",
- duration, packet_count);
-
- mod_timer(&rs_sta->rate_scale_flush, jiffies +
- rs_sta->flush_time);
-
- rs_sta->last_partial_flush = jiffies;
- } else {
- rs_sta->flush_time = IWL_RATE_FLUSH;
- rs_sta->flush_pending = 0;
- }
- /* If there weren't any unflushed entries, we don't schedule the timer
- * to run again */
-
- rs_sta->last_flush = jiffies;
-
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
- IWL_DEBUG_RATE(priv, "leave\n");
-}
-
-/**
- * iwl3945_collect_tx_data - Update the success/failure sliding window
- *
- * We keep a sliding window of the last 64 packets transmitted
- * at this rate. window->data contains the bitmask of successful
- * packets.
- */
-static void iwl3945_collect_tx_data(struct iwl3945_rs_sta *rs_sta,
- struct iwl3945_rate_scale_data *window,
- int success, int retries, int index)
-{
- unsigned long flags;
- s32 fail_count;
- struct iwl_priv *priv __maybe_unused = rs_sta->priv;
-
- if (!retries) {
- IWL_DEBUG_RATE(priv, "leave: retries == 0 -- should be at least 1\n");
- return;
- }
-
- spin_lock_irqsave(&rs_sta->lock, flags);
-
- /*
- * Keep track of only the latest 62 tx frame attempts in this rate's
- * history window; anything older isn't really relevant any more.
- * If we have filled up the sliding window, drop the oldest attempt;
- * if the oldest attempt (highest bit in bitmap) shows "success",
- * subtract "1" from the success counter (this is the main reason
- * we keep these bitmaps!).
- * */
- while (retries > 0) {
- if (window->counter >= IWL_RATE_MAX_WINDOW) {
-
- /* remove earliest */
- window->counter = IWL_RATE_MAX_WINDOW - 1;
-
- if (window->data & (1ULL << (IWL_RATE_MAX_WINDOW - 1))) {
- window->data &= ~(1ULL << (IWL_RATE_MAX_WINDOW - 1));
- window->success_counter--;
- }
- }
-
- /* Increment frames-attempted counter */
- window->counter++;
-
- /* Shift bitmap by one frame (throw away oldest history),
- * OR in "1", and increment "success" if this
- * frame was successful. */
- window->data <<= 1;
- if (success > 0) {
- window->success_counter++;
- window->data |= 0x1;
- success--;
- }
-
- retries--;
- }
-
- /* Calculate current success ratio, avoid divide-by-0! */
- if (window->counter > 0)
- window->success_ratio = 128 * (100 * window->success_counter)
- / window->counter;
- else
- window->success_ratio = IWL_INVALID_VALUE;
-
- fail_count = window->counter - window->success_counter;
-
- /* Calculate average throughput, if we have enough history. */
- if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) ||
- (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH))
- window->average_tpt = ((window->success_ratio *
- rs_sta->expected_tpt[index] + 64) / 128);
- else
- window->average_tpt = IWL_INVALID_VALUE;
-
- /* Tag this window as having been updated */
- window->stamp = jiffies;
-
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
-}
-
-/*
- * Called after adding a new station to initialize rate scaling
- */
-void iwl3945_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_id)
-{
- struct ieee80211_hw *hw = priv->hw;
- struct ieee80211_conf *conf = &priv->hw->conf;
- struct iwl3945_sta_priv *psta;
- struct iwl3945_rs_sta *rs_sta;
- struct ieee80211_supported_band *sband;
- int i;
-
- IWL_DEBUG_INFO(priv, "enter\n");
- if (sta_id == priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id)
- goto out;
-
- psta = (struct iwl3945_sta_priv *) sta->drv_priv;
- rs_sta = &psta->rs_sta;
- sband = hw->wiphy->bands[conf->channel->band];
-
- rs_sta->priv = priv;
-
- rs_sta->start_rate = IWL_RATE_INVALID;
-
- /* default to just 802.11b */
- rs_sta->expected_tpt = iwl3945_expected_tpt_b;
-
- rs_sta->last_partial_flush = jiffies;
- rs_sta->last_flush = jiffies;
- rs_sta->flush_time = IWL_RATE_FLUSH;
- rs_sta->last_tx_packets = 0;
-
- rs_sta->rate_scale_flush.data = (unsigned long)rs_sta;
- rs_sta->rate_scale_flush.function = iwl3945_bg_rate_scale_flush;
-
- for (i = 0; i < IWL_RATE_COUNT_3945; i++)
- iwl3945_clear_window(&rs_sta->win[i]);
-
- /* TODO: what is a good starting rate for STA? About middle? Maybe not
- * the lowest or the highest rate.. Could consider using RSSI from
- * previous packets? Need to have IEEE 802.1X auth succeed immediately
- * after assoc.. */
-
- for (i = sband->n_bitrates - 1; i >= 0; i--) {
- if (sta->supp_rates[sband->band] & (1 << i)) {
- rs_sta->last_txrate_idx = i;
- break;
- }
- }
-
- priv->_3945.sta_supp_rates = sta->supp_rates[sband->band];
- /* For 5 GHz band it start at IWL_FIRST_OFDM_RATE */
- if (sband->band == IEEE80211_BAND_5GHZ) {
- rs_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
- priv->_3945.sta_supp_rates = priv->_3945.sta_supp_rates <<
- IWL_FIRST_OFDM_RATE;
- }
-
-out:
- priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
-
- IWL_DEBUG_INFO(priv, "leave\n");
-}
-
-static void *iwl3945_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
-{
- return hw->priv;
-}
-
-/* rate scale requires free function to be implemented */
-static void iwl3945_rs_free(void *priv)
-{
- return;
-}
-
-static void *iwl3945_rs_alloc_sta(void *iwl_priv, struct ieee80211_sta *sta, gfp_t gfp)
-{
- struct iwl3945_rs_sta *rs_sta;
- struct iwl3945_sta_priv *psta = (void *) sta->drv_priv;
- struct iwl_priv *priv __maybe_unused = iwl_priv;
-
- IWL_DEBUG_RATE(priv, "enter\n");
-
- rs_sta = &psta->rs_sta;
-
- spin_lock_init(&rs_sta->lock);
- init_timer(&rs_sta->rate_scale_flush);
-
- IWL_DEBUG_RATE(priv, "leave\n");
-
- return rs_sta;
-}
-
-static void iwl3945_rs_free_sta(void *iwl_priv, struct ieee80211_sta *sta,
- void *priv_sta)
-{
- struct iwl3945_rs_sta *rs_sta = priv_sta;
-
- /*
- * Be careful not to use any members of iwl3945_rs_sta (like trying
- * to use iwl_priv to print out debugging) since it may not be fully
- * initialized at this point.
- */
- del_timer_sync(&rs_sta->rate_scale_flush);
-}
-
-
-/**
- * iwl3945_rs_tx_status - Update rate control values based on Tx results
- *
- * NOTE: Uses iwl_priv->retry_rate for the # of retries attempted by
- * the hardware for each rate.
- */
-static void iwl3945_rs_tx_status(void *priv_rate, struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta,
- struct sk_buff *skb)
-{
- s8 retries = 0, current_count;
- int scale_rate_index, first_index, last_index;
- unsigned long flags;
- struct iwl_priv *priv = (struct iwl_priv *)priv_rate;
- struct iwl3945_rs_sta *rs_sta = priv_sta;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-
- IWL_DEBUG_RATE(priv, "enter\n");
-
- retries = info->status.rates[0].count;
- /* Sanity Check for retries */
- if (retries > IWL_RATE_RETRY_TH)
- retries = IWL_RATE_RETRY_TH;
-
- first_index = sband->bitrates[info->status.rates[0].idx].hw_value;
- if ((first_index < 0) || (first_index >= IWL_RATE_COUNT_3945)) {
- IWL_DEBUG_RATE(priv, "leave: Rate out of bounds: %d\n", first_index);
- return;
- }
-
- if (!priv_sta) {
- IWL_DEBUG_RATE(priv, "leave: No STA priv data to update!\n");
- return;
- }
-
- /* Treat uninitialized rate scaling data same as non-existing. */
- if (!rs_sta->priv) {
- IWL_DEBUG_RATE(priv, "leave: STA priv data uninitialized!\n");
- return;
- }
-
-
- rs_sta->tx_packets++;
-
- scale_rate_index = first_index;
- last_index = first_index;
-
- /*
- * Update the window for each rate. We determine which rates
- * were Tx'd based on the total number of retries vs. the number
- * of retries configured for each rate -- currently set to the
- * priv value 'retry_rate' vs. rate specific
- *
- * On exit from this while loop last_index indicates the rate
- * at which the frame was finally transmitted (or failed if no
- * ACK)
- */
- while (retries > 1) {
- if ((retries - 1) < priv->retry_rate) {
- current_count = (retries - 1);
- last_index = scale_rate_index;
- } else {
- current_count = priv->retry_rate;
- last_index = iwl3945_rs_next_rate(priv,
- scale_rate_index);
- }
-
- /* Update this rate accounting for as many retries
- * as was used for it (per current_count) */
- iwl3945_collect_tx_data(rs_sta,
- &rs_sta->win[scale_rate_index],
- 0, current_count, scale_rate_index);
- IWL_DEBUG_RATE(priv, "Update rate %d for %d retries.\n",
- scale_rate_index, current_count);
-
- retries -= current_count;
-
- scale_rate_index = last_index;
- }
-
-
- /* Update the last index window with success/failure based on ACK */
- IWL_DEBUG_RATE(priv, "Update rate %d with %s.\n",
- last_index,
- (info->flags & IEEE80211_TX_STAT_ACK) ?
- "success" : "failure");
- iwl3945_collect_tx_data(rs_sta,
- &rs_sta->win[last_index],
- info->flags & IEEE80211_TX_STAT_ACK, 1, last_index);
-
- /* We updated the rate scale window -- if its been more than
- * flush_time since the last run, schedule the flush
- * again */
- spin_lock_irqsave(&rs_sta->lock, flags);
-
- if (!rs_sta->flush_pending &&
- time_after(jiffies, rs_sta->last_flush +
- rs_sta->flush_time)) {
-
- rs_sta->last_partial_flush = jiffies;
- rs_sta->flush_pending = 1;
- mod_timer(&rs_sta->rate_scale_flush,
- jiffies + rs_sta->flush_time);
- }
-
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
- IWL_DEBUG_RATE(priv, "leave\n");
-}
-
-static u16 iwl3945_get_adjacent_rate(struct iwl3945_rs_sta *rs_sta,
- u8 index, u16 rate_mask, enum ieee80211_band band)
-{
- u8 high = IWL_RATE_INVALID;
- u8 low = IWL_RATE_INVALID;
- struct iwl_priv *priv __maybe_unused = rs_sta->priv;
-
- /* 802.11A walks to the next literal adjacent rate in
- * the rate table */
- if (unlikely(band == IEEE80211_BAND_5GHZ)) {
- int i;
- u32 mask;
-
- /* Find the previous rate that is in the rate mask */
- i = index - 1;
- for (mask = (1 << i); i >= 0; i--, mask >>= 1) {
- if (rate_mask & mask) {
- low = i;
- break;
- }
- }
-
- /* Find the next rate that is in the rate mask */
- i = index + 1;
- for (mask = (1 << i); i < IWL_RATE_COUNT_3945;
- i++, mask <<= 1) {
- if (rate_mask & mask) {
- high = i;
- break;
- }
- }
-
- return (high << 8) | low;
- }
-
- low = index;
- while (low != IWL_RATE_INVALID) {
- if (rs_sta->tgg)
- low = iwl3945_rates[low].prev_rs_tgg;
- else
- low = iwl3945_rates[low].prev_rs;
- if (low == IWL_RATE_INVALID)
- break;
- if (rate_mask & (1 << low))
- break;
- IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low);
- }
-
- high = index;
- while (high != IWL_RATE_INVALID) {
- if (rs_sta->tgg)
- high = iwl3945_rates[high].next_rs_tgg;
- else
- high = iwl3945_rates[high].next_rs;
- if (high == IWL_RATE_INVALID)
- break;
- if (rate_mask & (1 << high))
- break;
- IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high);
- }
-
- return (high << 8) | low;
-}
-
-/**
- * iwl3945_rs_get_rate - find the rate for the requested packet
- *
- * Returns the ieee80211_rate structure allocated by the driver.
- *
- * The rate control algorithm has no internal mapping between hw_mode's
- * rate ordering and the rate ordering used by the rate control algorithm.
- *
- * The rate control algorithm uses a single table of rates that goes across
- * the entire A/B/G spectrum vs. being limited to just one particular
- * hw_mode.
- *
- * As such, we can't convert the index obtained below into the hw_mode's
- * rate table and must reference the driver allocated rate table
- *
- */
-static void iwl3945_rs_get_rate(void *priv_r, struct ieee80211_sta *sta,
- void *priv_sta, struct ieee80211_tx_rate_control *txrc)
-{
- struct ieee80211_supported_band *sband = txrc->sband;
- struct sk_buff *skb = txrc->skb;
- u8 low = IWL_RATE_INVALID;
- u8 high = IWL_RATE_INVALID;
- u16 high_low;
- int index;
- struct iwl3945_rs_sta *rs_sta = priv_sta;
- struct iwl3945_rate_scale_data *window = NULL;
- int current_tpt = IWL_INVALID_VALUE;
- int low_tpt = IWL_INVALID_VALUE;
- int high_tpt = IWL_INVALID_VALUE;
- u32 fail_count;
- s8 scale_action = 0;
- unsigned long flags;
- u16 rate_mask;
- s8 max_rate_idx = -1;
- struct iwl_priv *priv __maybe_unused = (struct iwl_priv *)priv_r;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-
- IWL_DEBUG_RATE(priv, "enter\n");
-
- /* Treat uninitialized rate scaling data same as non-existing. */
- if (rs_sta && !rs_sta->priv) {
- IWL_DEBUG_RATE(priv, "Rate scaling information not initialized yet.\n");
- priv_sta = NULL;
- }
-
- if (rate_control_send_low(sta, priv_sta, txrc))
- return;
-
- rate_mask = sta->supp_rates[sband->band];
-
- /* get user max rate if set */
- max_rate_idx = txrc->max_rate_idx;
- if ((sband->band == IEEE80211_BAND_5GHZ) && (max_rate_idx != -1))
- max_rate_idx += IWL_FIRST_OFDM_RATE;
- if ((max_rate_idx < 0) || (max_rate_idx >= IWL_RATE_COUNT))
- max_rate_idx = -1;
-
- index = min(rs_sta->last_txrate_idx & 0xffff, IWL_RATE_COUNT_3945 - 1);
-
- if (sband->band == IEEE80211_BAND_5GHZ)
- rate_mask = rate_mask << IWL_FIRST_OFDM_RATE;
-
- spin_lock_irqsave(&rs_sta->lock, flags);
-
- /* for recent assoc, choose best rate regarding
- * to rssi value
- */
- if (rs_sta->start_rate != IWL_RATE_INVALID) {
- if (rs_sta->start_rate < index &&
- (rate_mask & (1 << rs_sta->start_rate)))
- index = rs_sta->start_rate;
- rs_sta->start_rate = IWL_RATE_INVALID;
- }
-
- /* force user max rate if set by user */
- if ((max_rate_idx != -1) && (max_rate_idx < index)) {
- if (rate_mask & (1 << max_rate_idx))
- index = max_rate_idx;
- }
-
- window = &(rs_sta->win[index]);
-
- fail_count = window->counter - window->success_counter;
-
- if (((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
- (window->success_counter < IWL_RATE_MIN_SUCCESS_TH))) {
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
- IWL_DEBUG_RATE(priv, "Invalid average_tpt on rate %d: "
- "counter: %d, success_counter: %d, "
- "expected_tpt is %sNULL\n",
- index,
- window->counter,
- window->success_counter,
- rs_sta->expected_tpt ? "not " : "");
-
- /* Can't calculate this yet; not enough history */
- window->average_tpt = IWL_INVALID_VALUE;
- goto out;
-
- }
-
- current_tpt = window->average_tpt;
-
- high_low = iwl3945_get_adjacent_rate(rs_sta, index, rate_mask,
- sband->band);
- low = high_low & 0xff;
- high = (high_low >> 8) & 0xff;
-
- /* If user set max rate, dont allow higher than user constrain */
- if ((max_rate_idx != -1) && (max_rate_idx < high))
- high = IWL_RATE_INVALID;
-
- /* Collect Measured throughputs of adjacent rates */
- if (low != IWL_RATE_INVALID)
- low_tpt = rs_sta->win[low].average_tpt;
-
- if (high != IWL_RATE_INVALID)
- high_tpt = rs_sta->win[high].average_tpt;
-
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
- scale_action = 0;
-
- /* Low success ratio , need to drop the rate */
- if ((window->success_ratio < IWL_RATE_DECREASE_TH) || !current_tpt) {
- IWL_DEBUG_RATE(priv, "decrease rate because of low success_ratio\n");
- scale_action = -1;
- /* No throughput measured yet for adjacent rates,
- * try increase */
- } else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE)) {
-
- if (high != IWL_RATE_INVALID && window->success_ratio >= IWL_RATE_INCREASE_TH)
- scale_action = 1;
- else if (low != IWL_RATE_INVALID)
- scale_action = 0;
-
- /* Both adjacent throughputs are measured, but neither one has
- * better throughput; we're using the best rate, don't change
- * it! */
- } else if ((low_tpt != IWL_INVALID_VALUE) &&
- (high_tpt != IWL_INVALID_VALUE) &&
- (low_tpt < current_tpt) && (high_tpt < current_tpt)) {
-
- IWL_DEBUG_RATE(priv, "No action -- low [%d] & high [%d] < "
- "current_tpt [%d]\n",
- low_tpt, high_tpt, current_tpt);
- scale_action = 0;
-
- /* At least one of the rates has better throughput */
- } else {
- if (high_tpt != IWL_INVALID_VALUE) {
-
- /* High rate has better throughput, Increase
- * rate */
- if (high_tpt > current_tpt &&
- window->success_ratio >= IWL_RATE_INCREASE_TH)
- scale_action = 1;
- else {
- IWL_DEBUG_RATE(priv,
- "decrease rate because of high tpt\n");
- scale_action = 0;
- }
- } else if (low_tpt != IWL_INVALID_VALUE) {
- if (low_tpt > current_tpt) {
- IWL_DEBUG_RATE(priv,
- "decrease rate because of low tpt\n");
- scale_action = -1;
- } else if (window->success_ratio >= IWL_RATE_INCREASE_TH) {
- /* Lower rate has better
- * throughput,decrease rate */
- scale_action = 1;
- }
- }
- }
-
- /* Sanity check; asked for decrease, but success rate or throughput
- * has been good at old rate. Don't change it. */
- if ((scale_action == -1) && (low != IWL_RATE_INVALID) &&
- ((window->success_ratio > IWL_RATE_HIGH_TH) ||
- (current_tpt > (100 * rs_sta->expected_tpt[low]))))
- scale_action = 0;
-
- switch (scale_action) {
- case -1:
-
- /* Decrese rate */
- if (low != IWL_RATE_INVALID)
- index = low;
- break;
-
- case 1:
- /* Increase rate */
- if (high != IWL_RATE_INVALID)
- index = high;
-
- break;
-
- case 0:
- default:
- /* No change */
- break;
- }
-
- IWL_DEBUG_RATE(priv, "Selected %d (action %d) - low %d high %d\n",
- index, scale_action, low, high);
-
- out:
-
- if (sband->band == IEEE80211_BAND_5GHZ) {
- if (WARN_ON_ONCE(index < IWL_FIRST_OFDM_RATE))
- index = IWL_FIRST_OFDM_RATE;
- rs_sta->last_txrate_idx = index;
- info->control.rates[0].idx = index - IWL_FIRST_OFDM_RATE;
- } else {
- rs_sta->last_txrate_idx = index;
- info->control.rates[0].idx = rs_sta->last_txrate_idx;
- }
-
- IWL_DEBUG_RATE(priv, "leave: %d\n", index);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-static int iwl3945_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- char *buff;
- int desc = 0;
- int j;
- ssize_t ret;
- struct iwl3945_rs_sta *lq_sta = file->private_data;
-
- buff = kmalloc(1024, GFP_KERNEL);
- if (!buff)
- return -ENOMEM;
-
- desc += sprintf(buff + desc, "tx packets=%d last rate index=%d\n"
- "rate=0x%X flush time %d\n",
- lq_sta->tx_packets,
- lq_sta->last_txrate_idx,
- lq_sta->start_rate, jiffies_to_msecs(lq_sta->flush_time));
- for (j = 0; j < IWL_RATE_COUNT_3945; j++) {
- desc += sprintf(buff+desc,
- "counter=%d success=%d %%=%d\n",
- lq_sta->win[j].counter,
- lq_sta->win[j].success_counter,
- lq_sta->win[j].success_ratio);
- }
- ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
- kfree(buff);
- return ret;
-}
-
-static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
- .read = iwl3945_sta_dbgfs_stats_table_read,
- .open = iwl3945_open_file_generic,
- .llseek = default_llseek,
-};
-
-static void iwl3945_add_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct iwl3945_rs_sta *lq_sta = priv_sta;
-
- lq_sta->rs_sta_dbgfs_stats_table_file =
- debugfs_create_file("rate_stats_table", 0600, dir,
- lq_sta, &rs_sta_dbgfs_stats_table_ops);
-
-}
-
-static void iwl3945_remove_debugfs(void *priv, void *priv_sta)
-{
- struct iwl3945_rs_sta *lq_sta = priv_sta;
- debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
-}
-#endif
-
-/*
- * Initialization of rate scaling information is done by driver after
- * the station is added. Since mac80211 calls this function before a
- * station is added we ignore it.
- */
-static void iwl3945_rs_rate_init_stub(void *priv_r,
- struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta)
-{
-}
-
-static struct rate_control_ops rs_ops = {
- .module = NULL,
- .name = RS_NAME,
- .tx_status = iwl3945_rs_tx_status,
- .get_rate = iwl3945_rs_get_rate,
- .rate_init = iwl3945_rs_rate_init_stub,
- .alloc = iwl3945_rs_alloc,
- .free = iwl3945_rs_free,
- .alloc_sta = iwl3945_rs_alloc_sta,
- .free_sta = iwl3945_rs_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = iwl3945_add_debugfs,
- .remove_sta_debugfs = iwl3945_remove_debugfs,
-#endif
-
-};
-void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id)
-{
- struct iwl_priv *priv = hw->priv;
- s32 rssi = 0;
- unsigned long flags;
- struct iwl3945_rs_sta *rs_sta;
- struct ieee80211_sta *sta;
- struct iwl3945_sta_priv *psta;
-
- IWL_DEBUG_RATE(priv, "enter\n");
-
- rcu_read_lock();
-
- sta = ieee80211_find_sta(priv->contexts[IWL_RXON_CTX_BSS].vif,
- priv->stations[sta_id].sta.sta.addr);
- if (!sta) {
- IWL_DEBUG_RATE(priv, "Unable to find station to initialize rate scaling.\n");
- rcu_read_unlock();
- return;
- }
-
- psta = (void *) sta->drv_priv;
- rs_sta = &psta->rs_sta;
-
- spin_lock_irqsave(&rs_sta->lock, flags);
-
- rs_sta->tgg = 0;
- switch (priv->band) {
- case IEEE80211_BAND_2GHZ:
- /* TODO: this always does G, not a regression */
- if (priv->contexts[IWL_RXON_CTX_BSS].active.flags &
- RXON_FLG_TGG_PROTECT_MSK) {
- rs_sta->tgg = 1;
- rs_sta->expected_tpt = iwl3945_expected_tpt_g_prot;
- } else
- rs_sta->expected_tpt = iwl3945_expected_tpt_g;
- break;
-
- case IEEE80211_BAND_5GHZ:
- rs_sta->expected_tpt = iwl3945_expected_tpt_a;
- break;
- case IEEE80211_NUM_BANDS:
- BUG();
- break;
- }
-
- spin_unlock_irqrestore(&rs_sta->lock, flags);
-
- rssi = priv->_3945.last_rx_rssi;
- if (rssi == 0)
- rssi = IWL_MIN_RSSI_VAL;
-
- IWL_DEBUG_RATE(priv, "Network RSSI: %d\n", rssi);
-
- rs_sta->start_rate = iwl3945_get_rate_index_by_rssi(rssi, priv->band);
-
- IWL_DEBUG_RATE(priv, "leave: rssi %d assign rate index: "
- "%d (plcp 0x%x)\n", rssi, rs_sta->start_rate,
- iwl3945_rates[rs_sta->start_rate].plcp);
- rcu_read_unlock();
-}
-
-int iwl3945_rate_control_register(void)
-{
- return ieee80211_rate_control_register(&rs_ops);
-}
-
-void iwl3945_rate_control_unregister(void)
-{
- ieee80211_rate_control_unregister(&rs_ops);
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.c b/drivers/net/wireless/iwlegacy/iwl-3945.c
deleted file mode 100644
index f7c0a74..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945.c
+++ /dev/null
@@ -1,2741 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <asm/unaligned.h>
-#include <net/mac80211.h>
-
-#include "iwl-fh.h"
-#include "iwl-3945-fh.h"
-#include "iwl-commands.h"
-#include "iwl-sta.h"
-#include "iwl-3945.h"
-#include "iwl-eeprom.h"
-#include "iwl-core.h"
-#include "iwl-helpers.h"
-#include "iwl-led.h"
-#include "iwl-3945-led.h"
-#include "iwl-3945-debugfs.h"
-
-#define IWL_DECLARE_RATE_INFO(r, ip, in, rp, rn, pp, np) \
- [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
- IWL_RATE_##r##M_IEEE, \
- IWL_RATE_##ip##M_INDEX, \
- IWL_RATE_##in##M_INDEX, \
- IWL_RATE_##rp##M_INDEX, \
- IWL_RATE_##rn##M_INDEX, \
- IWL_RATE_##pp##M_INDEX, \
- IWL_RATE_##np##M_INDEX, \
- IWL_RATE_##r##M_INDEX_TABLE, \
- IWL_RATE_##ip##M_INDEX_TABLE }
-
-/*
- * Parameter order:
- * rate, prev rate, next rate, prev tgg rate, next tgg rate
- *
- * If there isn't a valid next or previous rate then INV is used which
- * maps to IWL_RATE_INVALID
- *
- */
-const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945] = {
- IWL_DECLARE_RATE_INFO(1, INV, 2, INV, 2, INV, 2), /* 1mbps */
- IWL_DECLARE_RATE_INFO(2, 1, 5, 1, 5, 1, 5), /* 2mbps */
- IWL_DECLARE_RATE_INFO(5, 2, 6, 2, 11, 2, 11), /*5.5mbps */
- IWL_DECLARE_RATE_INFO(11, 9, 12, 5, 12, 5, 18), /* 11mbps */
- IWL_DECLARE_RATE_INFO(6, 5, 9, 5, 11, 5, 11), /* 6mbps */
- IWL_DECLARE_RATE_INFO(9, 6, 11, 5, 11, 5, 11), /* 9mbps */
- IWL_DECLARE_RATE_INFO(12, 11, 18, 11, 18, 11, 18), /* 12mbps */
- IWL_DECLARE_RATE_INFO(18, 12, 24, 12, 24, 11, 24), /* 18mbps */
- IWL_DECLARE_RATE_INFO(24, 18, 36, 18, 36, 18, 36), /* 24mbps */
- IWL_DECLARE_RATE_INFO(36, 24, 48, 24, 48, 24, 48), /* 36mbps */
- IWL_DECLARE_RATE_INFO(48, 36, 54, 36, 54, 36, 54), /* 48mbps */
- IWL_DECLARE_RATE_INFO(54, 48, INV, 48, INV, 48, INV),/* 54mbps */
-};
-
-static inline u8 iwl3945_get_prev_ieee_rate(u8 rate_index)
-{
- u8 rate = iwl3945_rates[rate_index].prev_ieee;
-
- if (rate == IWL_RATE_INVALID)
- rate = rate_index;
- return rate;
-}
-
-/* 1 = enable the iwl3945_disable_events() function */
-#define IWL_EVT_DISABLE (0)
-#define IWL_EVT_DISABLE_SIZE (1532/32)
-
-/**
- * iwl3945_disable_events - Disable selected events in uCode event log
- *
- * Disable an event by writing "1"s into "disable"
- * bitmap in SRAM. Bit position corresponds to Event # (id/type).
- * Default values of 0 enable uCode events to be logged.
- * Use for only special debugging. This function is just a placeholder as-is,
- * you'll need to provide the special bits! ...
- * ... and set IWL_EVT_DISABLE to 1. */
-void iwl3945_disable_events(struct iwl_priv *priv)
-{
- int i;
- u32 base; /* SRAM address of event log header */
- u32 disable_ptr; /* SRAM address of event-disable bitmap array */
- u32 array_size; /* # of u32 entries in array */
- static const u32 evt_disable[IWL_EVT_DISABLE_SIZE] = {
- 0x00000000, /* 31 - 0 Event id numbers */
- 0x00000000, /* 63 - 32 */
- 0x00000000, /* 95 - 64 */
- 0x00000000, /* 127 - 96 */
- 0x00000000, /* 159 - 128 */
- 0x00000000, /* 191 - 160 */
- 0x00000000, /* 223 - 192 */
- 0x00000000, /* 255 - 224 */
- 0x00000000, /* 287 - 256 */
- 0x00000000, /* 319 - 288 */
- 0x00000000, /* 351 - 320 */
- 0x00000000, /* 383 - 352 */
- 0x00000000, /* 415 - 384 */
- 0x00000000, /* 447 - 416 */
- 0x00000000, /* 479 - 448 */
- 0x00000000, /* 511 - 480 */
- 0x00000000, /* 543 - 512 */
- 0x00000000, /* 575 - 544 */
- 0x00000000, /* 607 - 576 */
- 0x00000000, /* 639 - 608 */
- 0x00000000, /* 671 - 640 */
- 0x00000000, /* 703 - 672 */
- 0x00000000, /* 735 - 704 */
- 0x00000000, /* 767 - 736 */
- 0x00000000, /* 799 - 768 */
- 0x00000000, /* 831 - 800 */
- 0x00000000, /* 863 - 832 */
- 0x00000000, /* 895 - 864 */
- 0x00000000, /* 927 - 896 */
- 0x00000000, /* 959 - 928 */
- 0x00000000, /* 991 - 960 */
- 0x00000000, /* 1023 - 992 */
- 0x00000000, /* 1055 - 1024 */
- 0x00000000, /* 1087 - 1056 */
- 0x00000000, /* 1119 - 1088 */
- 0x00000000, /* 1151 - 1120 */
- 0x00000000, /* 1183 - 1152 */
- 0x00000000, /* 1215 - 1184 */
- 0x00000000, /* 1247 - 1216 */
- 0x00000000, /* 1279 - 1248 */
- 0x00000000, /* 1311 - 1280 */
- 0x00000000, /* 1343 - 1312 */
- 0x00000000, /* 1375 - 1344 */
- 0x00000000, /* 1407 - 1376 */
- 0x00000000, /* 1439 - 1408 */
- 0x00000000, /* 1471 - 1440 */
- 0x00000000, /* 1503 - 1472 */
- };
-
- base = le32_to_cpu(priv->card_alive.log_event_table_ptr);
- if (!iwl3945_hw_valid_rtc_data_addr(base)) {
- IWL_ERR(priv, "Invalid event log pointer 0x%08X\n", base);
- return;
- }
-
- disable_ptr = iwl_legacy_read_targ_mem(priv, base + (4 * sizeof(u32)));
- array_size = iwl_legacy_read_targ_mem(priv, base + (5 * sizeof(u32)));
-
- if (IWL_EVT_DISABLE && (array_size == IWL_EVT_DISABLE_SIZE)) {
- IWL_DEBUG_INFO(priv, "Disabling selected uCode log events at 0x%x\n",
- disable_ptr);
- for (i = 0; i < IWL_EVT_DISABLE_SIZE; i++)
- iwl_legacy_write_targ_mem(priv,
- disable_ptr + (i * sizeof(u32)),
- evt_disable[i]);
-
- } else {
- IWL_DEBUG_INFO(priv, "Selected uCode log events may be disabled\n");
- IWL_DEBUG_INFO(priv, " by writing \"1\"s into disable bitmap\n");
- IWL_DEBUG_INFO(priv, " in SRAM at 0x%x, size %d u32s\n",
- disable_ptr, array_size);
- }
-
-}
-
-static int iwl3945_hwrate_to_plcp_idx(u8 plcp)
-{
- int idx;
-
- for (idx = 0; idx < IWL_RATE_COUNT_3945; idx++)
- if (iwl3945_rates[idx].plcp == plcp)
- return idx;
- return -1;
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-#define TX_STATUS_ENTRY(x) case TX_3945_STATUS_FAIL_ ## x: return #x
-
-static const char *iwl3945_get_tx_fail_reason(u32 status)
-{
- switch (status & TX_STATUS_MSK) {
- case TX_3945_STATUS_SUCCESS:
- return "SUCCESS";
- TX_STATUS_ENTRY(SHORT_LIMIT);
- TX_STATUS_ENTRY(LONG_LIMIT);
- TX_STATUS_ENTRY(FIFO_UNDERRUN);
- TX_STATUS_ENTRY(MGMNT_ABORT);
- TX_STATUS_ENTRY(NEXT_FRAG);
- TX_STATUS_ENTRY(LIFE_EXPIRE);
- TX_STATUS_ENTRY(DEST_PS);
- TX_STATUS_ENTRY(ABORTED);
- TX_STATUS_ENTRY(BT_RETRY);
- TX_STATUS_ENTRY(STA_INVALID);
- TX_STATUS_ENTRY(FRAG_DROPPED);
- TX_STATUS_ENTRY(TID_DISABLE);
- TX_STATUS_ENTRY(FRAME_FLUSHED);
- TX_STATUS_ENTRY(INSUFFICIENT_CF_POLL);
- TX_STATUS_ENTRY(TX_LOCKED);
- TX_STATUS_ENTRY(NO_BEACON_ON_RADAR);
- }
-
- return "UNKNOWN";
-}
-#else
-static inline const char *iwl3945_get_tx_fail_reason(u32 status)
-{
- return "";
-}
-#endif
-
-/*
- * get ieee prev rate from rate scale table.
- * for A and B mode we need to overright prev
- * value
- */
-int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate)
-{
- int next_rate = iwl3945_get_prev_ieee_rate(rate);
-
- switch (priv->band) {
- case IEEE80211_BAND_5GHZ:
- if (rate == IWL_RATE_12M_INDEX)
- next_rate = IWL_RATE_9M_INDEX;
- else if (rate == IWL_RATE_6M_INDEX)
- next_rate = IWL_RATE_6M_INDEX;
- break;
- case IEEE80211_BAND_2GHZ:
- if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
- iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
- if (rate == IWL_RATE_11M_INDEX)
- next_rate = IWL_RATE_5M_INDEX;
- }
- break;
-
- default:
- break;
- }
-
- return next_rate;
-}
-
-
-/**
- * iwl3945_tx_queue_reclaim - Reclaim Tx queue entries already Tx'd
- *
- * When FW advances 'R' index, all entries between old and new 'R' index
- * need to be reclaimed. As result, some free space forms. If there is
- * enough free space (> low mark), wake the stack that feeds us.
- */
-static void iwl3945_tx_queue_reclaim(struct iwl_priv *priv,
- int txq_id, int index)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
- struct iwl_tx_info *tx_info;
-
- BUG_ON(txq_id == IWL39_CMD_QUEUE_NUM);
-
- for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd);
- q->read_ptr != index;
- q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
-
- tx_info = &txq->txb[txq->q.read_ptr];
- ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
- tx_info->skb = NULL;
- priv->cfg->ops->lib->txq_free_tfd(priv, txq);
- }
-
- if (iwl_legacy_queue_space(q) > q->low_mark && (txq_id >= 0) &&
- (txq_id != IWL39_CMD_QUEUE_NUM) &&
- priv->mac80211_registered)
- iwl_legacy_wake_queue(priv, txq);
-}
-
-/**
- * iwl3945_rx_reply_tx - Handle Tx response
- */
-static void iwl3945_rx_reply_tx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u16 sequence = le16_to_cpu(pkt->hdr.sequence);
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct ieee80211_tx_info *info;
- struct iwl3945_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
- u32 status = le32_to_cpu(tx_resp->status);
- int rate_idx;
- int fail;
-
- if ((index >= txq->q.n_bd) || (iwl_legacy_queue_used(&txq->q, index) == 0)) {
- IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
- "is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.write_ptr,
- txq->q.read_ptr);
- return;
- }
-
- txq->time_stamp = jiffies;
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
- ieee80211_tx_info_clear_status(info);
-
- /* Fill the MRR chain with some info about on-chip retransmissions */
- rate_idx = iwl3945_hwrate_to_plcp_idx(tx_resp->rate);
- if (info->band == IEEE80211_BAND_5GHZ)
- rate_idx -= IWL_FIRST_OFDM_RATE;
-
- fail = tx_resp->failure_frame;
-
- info->status.rates[0].idx = rate_idx;
- info->status.rates[0].count = fail + 1; /* add final attempt */
-
- /* tx_status->rts_retry_count = tx_resp->failure_rts; */
- info->flags |= ((status & TX_STATUS_MSK) == TX_STATUS_SUCCESS) ?
- IEEE80211_TX_STAT_ACK : 0;
-
- IWL_DEBUG_TX(priv, "Tx queue %d Status %s (0x%08x) plcp rate %d retries %d\n",
- txq_id, iwl3945_get_tx_fail_reason(status), status,
- tx_resp->rate, tx_resp->failure_frame);
-
- IWL_DEBUG_TX_REPLY(priv, "Tx queue reclaim %d\n", index);
- iwl3945_tx_queue_reclaim(priv, txq_id, index);
-
- if (status & TX_ABORT_REQUIRED_MSK)
- IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
-}
-
-
-
-/*****************************************************************************
- *
- * Intel PRO/Wireless 3945ABG/BG Network Connection
- *
- * RX handler implementations
- *
- *****************************************************************************/
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-static void iwl3945_accumulative_statistics(struct iwl_priv *priv,
- __le32 *stats)
-{
- int i;
- __le32 *prev_stats;
- u32 *accum_stats;
- u32 *delta, *max_delta;
-
- prev_stats = (__le32 *)&priv->_3945.statistics;
- accum_stats = (u32 *)&priv->_3945.accum_statistics;
- delta = (u32 *)&priv->_3945.delta_statistics;
- max_delta = (u32 *)&priv->_3945.max_delta;
-
- for (i = sizeof(__le32); i < sizeof(struct iwl3945_notif_statistics);
- i += sizeof(__le32), stats++, prev_stats++, delta++,
- max_delta++, accum_stats++) {
- if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
- *delta = (le32_to_cpu(*stats) -
- le32_to_cpu(*prev_stats));
- *accum_stats += *delta;
- if (*delta > *max_delta)
- *max_delta = *delta;
- }
- }
-
- /* reset accumulative statistics for "no-counter" type statistics */
- priv->_3945.accum_statistics.general.temperature =
- priv->_3945.statistics.general.temperature;
- priv->_3945.accum_statistics.general.ttl_timestamp =
- priv->_3945.statistics.general.ttl_timestamp;
-}
-#endif
-
-void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- IWL_DEBUG_RX(priv, "Statistics notification received (%d vs %d).\n",
- (int)sizeof(struct iwl3945_notif_statistics),
- le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK);
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- iwl3945_accumulative_statistics(priv, (__le32 *)&pkt->u.raw);
-#endif
-
- memcpy(&priv->_3945.statistics, pkt->u.raw, sizeof(priv->_3945.statistics));
-}
-
-void iwl3945_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- __le32 *flag = (__le32 *)&pkt->u.raw;
-
- if (le32_to_cpu(*flag) & UCODE_STATISTICS_CLEAR_MSK) {
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- memset(&priv->_3945.accum_statistics, 0,
- sizeof(struct iwl3945_notif_statistics));
- memset(&priv->_3945.delta_statistics, 0,
- sizeof(struct iwl3945_notif_statistics));
- memset(&priv->_3945.max_delta, 0,
- sizeof(struct iwl3945_notif_statistics));
-#endif
- IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
- }
- iwl3945_hw_rx_statistics(priv, rxb);
-}
-
-
-/******************************************************************************
- *
- * Misc. internal state and helper functions
- *
- ******************************************************************************/
-
-/* This is necessary only for a number of statistics, see the caller. */
-static int iwl3945_is_network_packet(struct iwl_priv *priv,
- struct ieee80211_hdr *header)
-{
- /* Filter incoming packets to determine if they are targeted toward
- * this network, discarding packets coming from ourselves */
- switch (priv->iw_mode) {
- case NL80211_IFTYPE_ADHOC: /* Header: Dest. | Source | BSSID */
- /* packets to our IBSS update information */
- return !compare_ether_addr(header->addr3, priv->bssid);
- case NL80211_IFTYPE_STATION: /* Header: Dest. | AP{BSSID} | Source */
- /* packets to our IBSS update information */
- return !compare_ether_addr(header->addr2, priv->bssid);
- default:
- return 1;
- }
-}
-
-static void iwl3945_pass_packet_to_mac80211(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb,
- struct ieee80211_rx_status *stats)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
- struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
- u16 len = le16_to_cpu(rx_hdr->len);
- struct sk_buff *skb;
- __le16 fc = hdr->frame_control;
-
- /* We received data from the HW, so stop the watchdog */
- if (unlikely(len + IWL39_RX_FRAME_SIZE >
- PAGE_SIZE << priv->hw_params.rx_page_order)) {
- IWL_DEBUG_DROP(priv, "Corruption detected!\n");
- return;
- }
-
- /* We only process data packets if the interface is open */
- if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP_LIMIT(priv,
- "Dropping packet while interface is not open.\n");
- return;
- }
-
- skb = dev_alloc_skb(128);
- if (!skb) {
- IWL_ERR(priv, "dev_alloc_skb failed\n");
- return;
- }
-
- if (!iwl3945_mod_params.sw_crypto)
- iwl_legacy_set_decrypted_flag(priv,
- (struct ieee80211_hdr *)rxb_addr(rxb),
- le32_to_cpu(rx_end->status), stats);
-
- skb_add_rx_frag(skb, 0, rxb->page,
- (void *)rx_hdr->payload - (void *)pkt, len);
-
- iwl_legacy_update_stats(priv, false, fc, len);
- memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
-
- ieee80211_rx(priv->hw, skb);
- priv->alloc_rxb_page--;
- rxb->page = NULL;
-}
-
-#define IWL_DELAY_NEXT_SCAN_AFTER_ASSOC (HZ*6)
-
-static void iwl3945_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct ieee80211_hdr *header;
- struct ieee80211_rx_status rx_status;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl3945_rx_frame_stats *rx_stats = IWL_RX_STATS(pkt);
- struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt);
- struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt);
- u16 rx_stats_sig_avg __maybe_unused = le16_to_cpu(rx_stats->sig_avg);
- u16 rx_stats_noise_diff __maybe_unused = le16_to_cpu(rx_stats->noise_diff);
- u8 network_packet;
-
- rx_status.flag = 0;
- rx_status.mactime = le64_to_cpu(rx_end->timestamp);
- rx_status.band = (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
- rx_status.freq =
- ieee80211_channel_to_frequency(le16_to_cpu(rx_hdr->channel),
- rx_status.band);
-
- rx_status.rate_idx = iwl3945_hwrate_to_plcp_idx(rx_hdr->rate);
- if (rx_status.band == IEEE80211_BAND_5GHZ)
- rx_status.rate_idx -= IWL_FIRST_OFDM_RATE;
-
- rx_status.antenna = (le16_to_cpu(rx_hdr->phy_flags) &
- RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4;
-
- /* set the preamble flag if appropriate */
- if (rx_hdr->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
- rx_status.flag |= RX_FLAG_SHORTPRE;
-
- if ((unlikely(rx_stats->phy_count > 20))) {
- IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
- rx_stats->phy_count);
- return;
- }
-
- if (!(rx_end->status & RX_RES_STATUS_NO_CRC32_ERROR)
- || !(rx_end->status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n", rx_end->status);
- return;
- }
-
-
-
- /* Convert 3945's rssi indicator to dBm */
- rx_status.signal = rx_stats->rssi - IWL39_RSSI_OFFSET;
-
- IWL_DEBUG_STATS(priv, "Rssi %d sig_avg %d noise_diff %d\n",
- rx_status.signal, rx_stats_sig_avg,
- rx_stats_noise_diff);
-
- header = (struct ieee80211_hdr *)IWL_RX_DATA(pkt);
-
- network_packet = iwl3945_is_network_packet(priv, header);
-
- IWL_DEBUG_STATS_LIMIT(priv, "[%c] %d RSSI:%d Signal:%u, Rate:%u\n",
- network_packet ? '*' : ' ',
- le16_to_cpu(rx_hdr->channel),
- rx_status.signal, rx_status.signal,
- rx_status.rate_idx);
-
- iwl_legacy_dbg_log_rx_data_frame(priv, le16_to_cpu(rx_hdr->len),
- header);
-
- if (network_packet) {
- priv->_3945.last_beacon_time =
- le32_to_cpu(rx_end->beacon_timestamp);
- priv->_3945.last_tsf = le64_to_cpu(rx_end->timestamp);
- priv->_3945.last_rx_rssi = rx_status.signal;
- }
-
- iwl3945_pass_packet_to_mac80211(priv, rxb, &rx_status);
-}
-
-int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- dma_addr_t addr, u16 len, u8 reset, u8 pad)
-{
- int count;
- struct iwl_queue *q;
- struct iwl3945_tfd *tfd, *tfd_tmp;
-
- q = &txq->q;
- tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
- tfd = &tfd_tmp[q->write_ptr];
-
- if (reset)
- memset(tfd, 0, sizeof(*tfd));
-
- count = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
-
- if ((count >= NUM_TFD_CHUNKS) || (count < 0)) {
- IWL_ERR(priv, "Error can not send more than %d chunks\n",
- NUM_TFD_CHUNKS);
- return -EINVAL;
- }
-
- tfd->tbs[count].addr = cpu_to_le32(addr);
- tfd->tbs[count].len = cpu_to_le32(len);
-
- count++;
-
- tfd->control_flags = cpu_to_le32(TFD_CTL_COUNT_SET(count) |
- TFD_CTL_PAD_SET(pad));
-
- return 0;
-}
-
-/**
- * iwl3945_hw_txq_free_tfd - Free one TFD, those at index [txq->q.read_ptr]
- *
- * Does NOT advance any indexes
- */
-void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- struct iwl3945_tfd *tfd_tmp = (struct iwl3945_tfd *)txq->tfds;
- int index = txq->q.read_ptr;
- struct iwl3945_tfd *tfd = &tfd_tmp[index];
- struct pci_dev *dev = priv->pci_dev;
- int i;
- int counter;
-
- /* sanity check */
- counter = TFD_CTL_COUNT_GET(le32_to_cpu(tfd->control_flags));
- if (counter > NUM_TFD_CHUNKS) {
- IWL_ERR(priv, "Too many chunks: %i\n", counter);
- /* @todo issue fatal error, it is quite serious situation */
- return;
- }
-
- /* Unmap tx_cmd */
- if (counter)
- pci_unmap_single(dev,
- dma_unmap_addr(&txq->meta[index], mapping),
- dma_unmap_len(&txq->meta[index], len),
- PCI_DMA_TODEVICE);
-
- /* unmap chunks if any */
-
- for (i = 1; i < counter; i++)
- pci_unmap_single(dev, le32_to_cpu(tfd->tbs[i].addr),
- le32_to_cpu(tfd->tbs[i].len), PCI_DMA_TODEVICE);
-
- /* free SKB */
- if (txq->txb) {
- struct sk_buff *skb;
-
- skb = txq->txb[txq->q.read_ptr].skb;
-
- /* can be called from irqs-disabled context */
- if (skb) {
- dev_kfree_skb_any(skb);
- txq->txb[txq->q.read_ptr].skb = NULL;
- }
- }
-}
-
-/**
- * iwl3945_hw_build_tx_cmd_rate - Add rate portion to TX_CMD:
- *
-*/
-void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct ieee80211_tx_info *info,
- struct ieee80211_hdr *hdr,
- int sta_id, int tx_id)
-{
- u16 hw_value = ieee80211_get_tx_rate(priv->hw, info)->hw_value;
- u16 rate_index = min(hw_value & 0xffff, IWL_RATE_COUNT_3945);
- u16 rate_mask;
- int rate;
- u8 rts_retry_limit;
- u8 data_retry_limit;
- __le32 tx_flags;
- __le16 fc = hdr->frame_control;
- struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
-
- rate = iwl3945_rates[rate_index].plcp;
- tx_flags = tx_cmd->tx_flags;
-
- /* We need to figure out how to get the sta->supp_rates while
- * in this running context */
- rate_mask = IWL_RATES_MASK_3945;
-
- /* Set retry limit on DATA packets and Probe Responses*/
- if (ieee80211_is_probe_resp(fc))
- data_retry_limit = 3;
- else
- data_retry_limit = IWL_DEFAULT_TX_RETRY;
- tx_cmd->data_retry_limit = data_retry_limit;
-
- if (tx_id >= IWL39_CMD_QUEUE_NUM)
- rts_retry_limit = 3;
- else
- rts_retry_limit = 7;
-
- if (data_retry_limit < rts_retry_limit)
- rts_retry_limit = data_retry_limit;
- tx_cmd->rts_retry_limit = rts_retry_limit;
-
- tx_cmd->rate = rate;
- tx_cmd->tx_flags = tx_flags;
-
- /* OFDM */
- tx_cmd->supp_rates[0] =
- ((rate_mask & IWL_OFDM_RATES_MASK) >> IWL_FIRST_OFDM_RATE) & 0xFF;
-
- /* CCK */
- tx_cmd->supp_rates[1] = (rate_mask & 0xF);
-
- IWL_DEBUG_RATE(priv, "Tx sta id: %d, rate: %d (plcp), flags: 0x%4X "
- "cck/ofdm mask: 0x%x/0x%x\n", sta_id,
- tx_cmd->rate, le32_to_cpu(tx_cmd->tx_flags),
- tx_cmd->supp_rates[1], tx_cmd->supp_rates[0]);
-}
-
-static u8 iwl3945_sync_sta(struct iwl_priv *priv, int sta_id, u16 tx_rate)
-{
- unsigned long flags_spin;
- struct iwl_station_entry *station;
-
- if (sta_id == IWL_INVALID_STATION)
- return IWL_INVALID_STATION;
-
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- station = &priv->stations[sta_id];
-
- station->sta.sta.modify_mask = STA_MODIFY_TX_RATE_MSK;
- station->sta.rate_n_flags = cpu_to_le16(tx_rate);
- station->sta.mode = STA_CONTROL_MODIFY_MSK;
- iwl_legacy_send_add_sta(priv, &station->sta, CMD_ASYNC);
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
-
- IWL_DEBUG_RATE(priv, "SCALE sync station %d to rate %d\n",
- sta_id, tx_rate);
- return sta_id;
-}
-
-static void iwl3945_set_pwr_vmain(struct iwl_priv *priv)
-{
-/*
- * (for documentation purposes)
- * to set power to V_AUX, do
-
- if (pci_pme_capable(priv->pci_dev, PCI_D3cold)) {
- iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
-
- iwl_poll_bit(priv, CSR_GPIO_IN,
- CSR_GPIO_IN_VAL_VAUX_PWR_SRC,
- CSR_GPIO_IN_BIT_AUX_POWER, 5000);
- }
- */
-
- iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
-
- iwl_poll_bit(priv, CSR_GPIO_IN, CSR_GPIO_IN_VAL_VMAIN_PWR_SRC,
- CSR_GPIO_IN_BIT_AUX_POWER, 5000); /* uS */
-}
-
-static int iwl3945_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- iwl_legacy_write_direct32(priv, FH39_RCSR_RBD_BASE(0), rxq->bd_dma);
- iwl_legacy_write_direct32(priv, FH39_RCSR_RPTR_ADDR(0),
- rxq->rb_stts_dma);
- iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), 0);
- iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0),
- FH39_RCSR_RX_CONFIG_REG_VAL_DMA_CHNL_EN_ENABLE |
- FH39_RCSR_RX_CONFIG_REG_VAL_RDRBD_EN_ENABLE |
- FH39_RCSR_RX_CONFIG_REG_BIT_WR_STTS_EN |
- FH39_RCSR_RX_CONFIG_REG_VAL_MAX_FRAG_SIZE_128 |
- (RX_QUEUE_SIZE_LOG << FH39_RCSR_RX_CONFIG_REG_POS_RBDC_SIZE) |
- FH39_RCSR_RX_CONFIG_REG_VAL_IRQ_DEST_INT_HOST |
- (1 << FH39_RCSR_RX_CONFIG_REG_POS_IRQ_RBTH) |
- FH39_RCSR_RX_CONFIG_REG_VAL_MSG_MODE_FH);
-
- /* fake read to flush all prev I/O */
- iwl_legacy_read_direct32(priv, FH39_RSSR_CTRL);
-
- return 0;
-}
-
-static int iwl3945_tx_reset(struct iwl_priv *priv)
-{
-
- /* bypass mode */
- iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0x2);
-
- /* RA 0 is active */
- iwl_legacy_write_prph(priv, ALM_SCD_ARASTAT_REG, 0x01);
-
- /* all 6 fifo are active */
- iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0x3f);
-
- iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_1_REG, 0x010000);
- iwl_legacy_write_prph(priv, ALM_SCD_SBYP_MODE_2_REG, 0x030002);
- iwl_legacy_write_prph(priv, ALM_SCD_TXF4MF_REG, 0x000004);
- iwl_legacy_write_prph(priv, ALM_SCD_TXF5MF_REG, 0x000005);
-
- iwl_legacy_write_direct32(priv, FH39_TSSR_CBB_BASE,
- priv->_3945.shared_phys);
-
- iwl_legacy_write_direct32(priv, FH39_TSSR_MSG_CONFIG,
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TXPD_ON |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_TXPD_ON |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_MAX_FRAG_SIZE_128B |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_SNOOP_RD_TFD_ON |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RD_CBB_ON |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_ORDER_RSP_WAIT_TH |
- FH39_TSSR_TX_MSG_CONFIG_REG_VAL_RSP_WAIT_TH);
-
-
- return 0;
-}
-
-/**
- * iwl3945_txq_ctx_reset - Reset TX queue context
- *
- * Destroys all DMA structures and initialize them again
- */
-static int iwl3945_txq_ctx_reset(struct iwl_priv *priv)
-{
- int rc;
- int txq_id, slots_num;
-
- iwl3945_hw_txq_ctx_free(priv);
-
- /* allocate tx queue structure */
- rc = iwl_legacy_alloc_txq_mem(priv);
- if (rc)
- return rc;
-
- /* Tx CMD queue */
- rc = iwl3945_tx_reset(priv);
- if (rc)
- goto error;
-
- /* Tx queue(s) */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- slots_num = (txq_id == IWL39_CMD_QUEUE_NUM) ?
- TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- rc = iwl_legacy_tx_queue_init(priv, &priv->txq[txq_id],
- slots_num, txq_id);
- if (rc) {
- IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
- goto error;
- }
- }
-
- return rc;
-
- error:
- iwl3945_hw_txq_ctx_free(priv);
- return rc;
-}
-
-
-/*
- * Start up 3945's basic functionality after it has been reset
- * (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop())
- * NOTE: This does not load uCode nor start the embedded processor
- */
-static int iwl3945_apm_init(struct iwl_priv *priv)
-{
- int ret = iwl_legacy_apm_init(priv);
-
- /* Clear APMG (NIC's internal power management) interrupts */
- iwl_legacy_write_prph(priv, APMG_RTC_INT_MSK_REG, 0x0);
- iwl_legacy_write_prph(priv, APMG_RTC_INT_STT_REG, 0xFFFFFFFF);
-
- /* Reset radio chip */
- iwl_legacy_set_bits_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_RESET_REQ);
- udelay(5);
- iwl_legacy_clear_bits_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_RESET_REQ);
-
- return ret;
-}
-
-static void iwl3945_nic_config(struct iwl_priv *priv)
-{
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- unsigned long flags;
- u8 rev_id = priv->pci_dev->revision;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Determine HW type */
- IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", rev_id);
-
- if (rev_id & PCI_CFG_REV_ID_BIT_RTP)
- IWL_DEBUG_INFO(priv, "RTP type\n");
- else if (rev_id & PCI_CFG_REV_ID_BIT_BASIC_SKU) {
- IWL_DEBUG_INFO(priv, "3945 RADIO-MB type\n");
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BIT_3945_MB);
- } else {
- IWL_DEBUG_INFO(priv, "3945 RADIO-MM type\n");
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BIT_3945_MM);
- }
-
- if (EEPROM_SKU_CAP_OP_MODE_MRC == eeprom->sku_cap) {
- IWL_DEBUG_INFO(priv, "SKU OP mode is mrc\n");
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BIT_SKU_MRC);
- } else
- IWL_DEBUG_INFO(priv, "SKU OP mode is basic\n");
-
- if ((eeprom->board_revision & 0xF0) == 0xD0) {
- IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
- eeprom->board_revision);
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
- } else {
- IWL_DEBUG_INFO(priv, "3945ABG revision is 0x%X\n",
- eeprom->board_revision);
- iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BIT_BOARD_TYPE);
- }
-
- if (eeprom->almgor_m_version <= 1) {
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_A);
- IWL_DEBUG_INFO(priv, "Card M type A version is 0x%X\n",
- eeprom->almgor_m_version);
- } else {
- IWL_DEBUG_INFO(priv, "Card M type B version is 0x%X\n",
- eeprom->almgor_m_version);
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR39_HW_IF_CONFIG_REG_BITS_SILICON_TYPE_B);
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (eeprom->sku_cap & EEPROM_SKU_CAP_SW_RF_KILL_ENABLE)
- IWL_DEBUG_RF_KILL(priv, "SW RF KILL supported in EEPROM.\n");
-
- if (eeprom->sku_cap & EEPROM_SKU_CAP_HW_RF_KILL_ENABLE)
- IWL_DEBUG_RF_KILL(priv, "HW RF KILL supported in EEPROM.\n");
-}
-
-int iwl3945_hw_nic_init(struct iwl_priv *priv)
-{
- int rc;
- unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
-
- spin_lock_irqsave(&priv->lock, flags);
- priv->cfg->ops->lib->apm_ops.init(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl3945_set_pwr_vmain(priv);
-
- priv->cfg->ops->lib->apm_ops.config(priv);
-
- /* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- rc = iwl_legacy_rx_queue_alloc(priv);
- if (rc) {
- IWL_ERR(priv, "Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwl3945_rx_queue_reset(priv, rxq);
-
- iwl3945_rx_replenish(priv);
-
- iwl3945_rx_init(priv, rxq);
-
-
- /* Look at using this instead:
- rxq->need_update = 1;
- iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
- */
-
- iwl_legacy_write_direct32(priv, FH39_RCSR_WPTR(0), rxq->write & ~7);
-
- rc = iwl3945_txq_ctx_reset(priv);
- if (rc)
- return rc;
-
- set_bit(STATUS_INIT, &priv->status);
-
- return 0;
-}
-
-/**
- * iwl3945_hw_txq_ctx_free - Free TXQ Context
- *
- * Destroy all TX DMA queues and structures
- */
-void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv)
-{
- int txq_id;
-
- /* Tx queues */
- if (priv->txq)
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num;
- txq_id++)
- if (txq_id == IWL39_CMD_QUEUE_NUM)
- iwl_legacy_cmd_queue_free(priv);
- else
- iwl_legacy_tx_queue_free(priv, txq_id);
-
- /* free tx queue structure */
- iwl_legacy_txq_mem(priv);
-}
-
-void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv)
-{
- int txq_id;
-
- /* stop SCD */
- iwl_legacy_write_prph(priv, ALM_SCD_MODE_REG, 0);
- iwl_legacy_write_prph(priv, ALM_SCD_TXFACT_REG, 0);
-
- /* reset TFD queues */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id), 0x0);
- iwl_poll_direct_bit(priv, FH39_TSSR_TX_STATUS,
- FH39_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(txq_id),
- 1000);
- }
-
- iwl3945_hw_txq_ctx_free(priv);
-}
-
-/**
- * iwl3945_hw_reg_adjust_power_by_temp
- * return index delta into power gain settings table
-*/
-static int iwl3945_hw_reg_adjust_power_by_temp(int new_reading, int old_reading)
-{
- return (new_reading - old_reading) * (-11) / 100;
-}
-
-/**
- * iwl3945_hw_reg_temp_out_of_range - Keep temperature in sane range
- */
-static inline int iwl3945_hw_reg_temp_out_of_range(int temperature)
-{
- return ((temperature < -260) || (temperature > 25)) ? 1 : 0;
-}
-
-int iwl3945_hw_get_temperature(struct iwl_priv *priv)
-{
- return iwl_read32(priv, CSR_UCODE_DRV_GP2);
-}
-
-/**
- * iwl3945_hw_reg_txpower_get_temperature
- * get the current temperature by reading from NIC
-*/
-static int iwl3945_hw_reg_txpower_get_temperature(struct iwl_priv *priv)
-{
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- int temperature;
-
- temperature = iwl3945_hw_get_temperature(priv);
-
- /* driver's okay range is -260 to +25.
- * human readable okay range is 0 to +285 */
- IWL_DEBUG_INFO(priv, "Temperature: %d\n", temperature + IWL_TEMP_CONVERT);
-
- /* handle insane temp reading */
- if (iwl3945_hw_reg_temp_out_of_range(temperature)) {
- IWL_ERR(priv, "Error bad temperature value %d\n", temperature);
-
- /* if really really hot(?),
- * substitute the 3rd band/group's temp measured at factory */
- if (priv->last_temperature > 100)
- temperature = eeprom->groups[2].temperature;
- else /* else use most recent "sane" value from driver */
- temperature = priv->last_temperature;
- }
-
- return temperature; /* raw, not "human readable" */
-}
-
-/* Adjust Txpower only if temperature variance is greater than threshold.
- *
- * Both are lower than older versions' 9 degrees */
-#define IWL_TEMPERATURE_LIMIT_TIMER 6
-
-/**
- * iwl3945_is_temp_calib_needed - determines if new calibration is needed
- *
- * records new temperature in tx_mgr->temperature.
- * replaces tx_mgr->last_temperature *only* if calib needed
- * (assumes caller will actually do the calibration!). */
-static int iwl3945_is_temp_calib_needed(struct iwl_priv *priv)
-{
- int temp_diff;
-
- priv->temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
- temp_diff = priv->temperature - priv->last_temperature;
-
- /* get absolute value */
- if (temp_diff < 0) {
- IWL_DEBUG_POWER(priv, "Getting cooler, delta %d,\n", temp_diff);
- temp_diff = -temp_diff;
- } else if (temp_diff == 0)
- IWL_DEBUG_POWER(priv, "Same temp,\n");
- else
- IWL_DEBUG_POWER(priv, "Getting warmer, delta %d,\n", temp_diff);
-
- /* if we don't need calibration, *don't* update last_temperature */
- if (temp_diff < IWL_TEMPERATURE_LIMIT_TIMER) {
- IWL_DEBUG_POWER(priv, "Timed thermal calib not needed\n");
- return 0;
- }
-
- IWL_DEBUG_POWER(priv, "Timed thermal calib needed\n");
-
- /* assume that caller will actually do calib ...
- * update the "last temperature" value */
- priv->last_temperature = priv->temperature;
- return 1;
-}
-
-#define IWL_MAX_GAIN_ENTRIES 78
-#define IWL_CCK_FROM_OFDM_POWER_DIFF -5
-#define IWL_CCK_FROM_OFDM_INDEX_DIFF (10)
-
-/* radio and DSP power table, each step is 1/2 dB.
- * 1st number is for RF analog gain, 2nd number is for DSP pre-DAC gain. */
-static struct iwl3945_tx_power power_gain_table[2][IWL_MAX_GAIN_ENTRIES] = {
- {
- {251, 127}, /* 2.4 GHz, highest power */
- {251, 127},
- {251, 127},
- {251, 127},
- {251, 125},
- {251, 110},
- {251, 105},
- {251, 98},
- {187, 125},
- {187, 115},
- {187, 108},
- {187, 99},
- {243, 119},
- {243, 111},
- {243, 105},
- {243, 97},
- {243, 92},
- {211, 106},
- {211, 100},
- {179, 120},
- {179, 113},
- {179, 107},
- {147, 125},
- {147, 119},
- {147, 112},
- {147, 106},
- {147, 101},
- {147, 97},
- {147, 91},
- {115, 107},
- {235, 121},
- {235, 115},
- {235, 109},
- {203, 127},
- {203, 121},
- {203, 115},
- {203, 108},
- {203, 102},
- {203, 96},
- {203, 92},
- {171, 110},
- {171, 104},
- {171, 98},
- {139, 116},
- {227, 125},
- {227, 119},
- {227, 113},
- {227, 107},
- {227, 101},
- {227, 96},
- {195, 113},
- {195, 106},
- {195, 102},
- {195, 95},
- {163, 113},
- {163, 106},
- {163, 102},
- {163, 95},
- {131, 113},
- {131, 106},
- {131, 102},
- {131, 95},
- {99, 113},
- {99, 106},
- {99, 102},
- {99, 95},
- {67, 113},
- {67, 106},
- {67, 102},
- {67, 95},
- {35, 113},
- {35, 106},
- {35, 102},
- {35, 95},
- {3, 113},
- {3, 106},
- {3, 102},
- {3, 95} }, /* 2.4 GHz, lowest power */
- {
- {251, 127}, /* 5.x GHz, highest power */
- {251, 120},
- {251, 114},
- {219, 119},
- {219, 101},
- {187, 113},
- {187, 102},
- {155, 114},
- {155, 103},
- {123, 117},
- {123, 107},
- {123, 99},
- {123, 92},
- {91, 108},
- {59, 125},
- {59, 118},
- {59, 109},
- {59, 102},
- {59, 96},
- {59, 90},
- {27, 104},
- {27, 98},
- {27, 92},
- {115, 118},
- {115, 111},
- {115, 104},
- {83, 126},
- {83, 121},
- {83, 113},
- {83, 105},
- {83, 99},
- {51, 118},
- {51, 111},
- {51, 104},
- {51, 98},
- {19, 116},
- {19, 109},
- {19, 102},
- {19, 98},
- {19, 93},
- {171, 113},
- {171, 107},
- {171, 99},
- {139, 120},
- {139, 113},
- {139, 107},
- {139, 99},
- {107, 120},
- {107, 113},
- {107, 107},
- {107, 99},
- {75, 120},
- {75, 113},
- {75, 107},
- {75, 99},
- {43, 120},
- {43, 113},
- {43, 107},
- {43, 99},
- {11, 120},
- {11, 113},
- {11, 107},
- {11, 99},
- {131, 107},
- {131, 99},
- {99, 120},
- {99, 113},
- {99, 107},
- {99, 99},
- {67, 120},
- {67, 113},
- {67, 107},
- {67, 99},
- {35, 120},
- {35, 113},
- {35, 107},
- {35, 99},
- {3, 120} } /* 5.x GHz, lowest power */
-};
-
-static inline u8 iwl3945_hw_reg_fix_power_index(int index)
-{
- if (index < 0)
- return 0;
- if (index >= IWL_MAX_GAIN_ENTRIES)
- return IWL_MAX_GAIN_ENTRIES - 1;
- return (u8) index;
-}
-
-/* Kick off thermal recalibration check every 60 seconds */
-#define REG_RECALIB_PERIOD (60)
-
-/**
- * iwl3945_hw_reg_set_scan_power - Set Tx power for scan probe requests
- *
- * Set (in our channel info database) the direct scan Tx power for 1 Mbit (CCK)
- * or 6 Mbit (OFDM) rates.
- */
-static void iwl3945_hw_reg_set_scan_power(struct iwl_priv *priv, u32 scan_tbl_index,
- s32 rate_index, const s8 *clip_pwrs,
- struct iwl_channel_info *ch_info,
- int band_index)
-{
- struct iwl3945_scan_power_info *scan_power_info;
- s8 power;
- u8 power_index;
-
- scan_power_info = &ch_info->scan_pwr_info[scan_tbl_index];
-
- /* use this channel group's 6Mbit clipping/saturation pwr,
- * but cap at regulatory scan power restriction (set during init
- * based on eeprom channel data) for this channel. */
- power = min(ch_info->scan_power, clip_pwrs[IWL_RATE_6M_INDEX_TABLE]);
-
- power = min(power, priv->tx_power_user_lmt);
- scan_power_info->requested_power = power;
-
- /* find difference between new scan *power* and current "normal"
- * Tx *power* for 6Mb. Use this difference (x2) to adjust the
- * current "normal" temperature-compensated Tx power *index* for
- * this rate (1Mb or 6Mb) to yield new temp-compensated scan power
- * *index*. */
- power_index = ch_info->power_info[rate_index].power_table_index
- - (power - ch_info->power_info
- [IWL_RATE_6M_INDEX_TABLE].requested_power) * 2;
-
- /* store reference index that we use when adjusting *all* scan
- * powers. So we can accommodate user (all channel) or spectrum
- * management (single channel) power changes "between" temperature
- * feedback compensation procedures.
- * don't force fit this reference index into gain table; it may be a
- * negative number. This will help avoid errors when we're at
- * the lower bounds (highest gains, for warmest temperatures)
- * of the table. */
-
- /* don't exceed table bounds for "real" setting */
- power_index = iwl3945_hw_reg_fix_power_index(power_index);
-
- scan_power_info->power_table_index = power_index;
- scan_power_info->tpc.tx_gain =
- power_gain_table[band_index][power_index].tx_gain;
- scan_power_info->tpc.dsp_atten =
- power_gain_table[band_index][power_index].dsp_atten;
-}
-
-/**
- * iwl3945_send_tx_power - fill in Tx Power command with gain settings
- *
- * Configures power settings for all rates for the current channel,
- * using values from channel info struct, and send to NIC
- */
-static int iwl3945_send_tx_power(struct iwl_priv *priv)
-{
- int rate_idx, i;
- const struct iwl_channel_info *ch_info = NULL;
- struct iwl3945_txpowertable_cmd txpower = {
- .channel = priv->contexts[IWL_RXON_CTX_BSS].active.channel,
- };
- u16 chan;
-
- if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
- "TX Power requested while scanning!\n"))
- return -EAGAIN;
-
- chan = le16_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.channel);
-
- txpower.band = (priv->band == IEEE80211_BAND_5GHZ) ? 0 : 1;
- ch_info = iwl_legacy_get_channel_info(priv, priv->band, chan);
- if (!ch_info) {
- IWL_ERR(priv,
- "Failed to get channel info for channel %d [%d]\n",
- chan, priv->band);
- return -EINVAL;
- }
-
- if (!iwl_legacy_is_channel_valid(ch_info)) {
- IWL_DEBUG_POWER(priv, "Not calling TX_PWR_TABLE_CMD on "
- "non-Tx channel.\n");
- return 0;
- }
-
- /* fill cmd with power settings for all rates for current channel */
- /* Fill OFDM rate */
- for (rate_idx = IWL_FIRST_OFDM_RATE, i = 0;
- rate_idx <= IWL39_LAST_OFDM_RATE; rate_idx++, i++) {
-
- txpower.power[i].tpc = ch_info->power_info[i].tpc;
- txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
-
- IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
- le16_to_cpu(txpower.channel),
- txpower.band,
- txpower.power[i].tpc.tx_gain,
- txpower.power[i].tpc.dsp_atten,
- txpower.power[i].rate);
- }
- /* Fill CCK rates */
- for (rate_idx = IWL_FIRST_CCK_RATE;
- rate_idx <= IWL_LAST_CCK_RATE; rate_idx++, i++) {
- txpower.power[i].tpc = ch_info->power_info[i].tpc;
- txpower.power[i].rate = iwl3945_rates[rate_idx].plcp;
-
- IWL_DEBUG_POWER(priv, "ch %d:%d rf %d dsp %3d rate code 0x%02x\n",
- le16_to_cpu(txpower.channel),
- txpower.band,
- txpower.power[i].tpc.tx_gain,
- txpower.power[i].tpc.dsp_atten,
- txpower.power[i].rate);
- }
-
- return iwl_legacy_send_cmd_pdu(priv, REPLY_TX_PWR_TABLE_CMD,
- sizeof(struct iwl3945_txpowertable_cmd),
- &txpower);
-
-}
-
-/**
- * iwl3945_hw_reg_set_new_power - Configures power tables at new levels
- * @ch_info: Channel to update. Uses power_info.requested_power.
- *
- * Replace requested_power and base_power_index ch_info fields for
- * one channel.
- *
- * Called if user or spectrum management changes power preferences.
- * Takes into account h/w and modulation limitations (clip power).
- *
- * This does *not* send anything to NIC, just sets up ch_info for one channel.
- *
- * NOTE: reg_compensate_for_temperature_dif() *must* be run after this to
- * properly fill out the scan powers, and actual h/w gain settings,
- * and send changes to NIC
- */
-static int iwl3945_hw_reg_set_new_power(struct iwl_priv *priv,
- struct iwl_channel_info *ch_info)
-{
- struct iwl3945_channel_power_info *power_info;
- int power_changed = 0;
- int i;
- const s8 *clip_pwrs;
- int power;
-
- /* Get this chnlgrp's rate-to-max/clip-powers table */
- clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
-
- /* Get this channel's rate-to-current-power settings table */
- power_info = ch_info->power_info;
-
- /* update OFDM Txpower settings */
- for (i = IWL_RATE_6M_INDEX_TABLE; i <= IWL_RATE_54M_INDEX_TABLE;
- i++, ++power_info) {
- int delta_idx;
-
- /* limit new power to be no more than h/w capability */
- power = min(ch_info->curr_txpow, clip_pwrs[i]);
- if (power == power_info->requested_power)
- continue;
-
- /* find difference between old and new requested powers,
- * update base (non-temp-compensated) power index */
- delta_idx = (power - power_info->requested_power) * 2;
- power_info->base_power_index -= delta_idx;
-
- /* save new requested power value */
- power_info->requested_power = power;
-
- power_changed = 1;
- }
-
- /* update CCK Txpower settings, based on OFDM 12M setting ...
- * ... all CCK power settings for a given channel are the *same*. */
- if (power_changed) {
- power =
- ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
- requested_power + IWL_CCK_FROM_OFDM_POWER_DIFF;
-
- /* do all CCK rates' iwl3945_channel_power_info structures */
- for (i = IWL_RATE_1M_INDEX_TABLE; i <= IWL_RATE_11M_INDEX_TABLE; i++) {
- power_info->requested_power = power;
- power_info->base_power_index =
- ch_info->power_info[IWL_RATE_12M_INDEX_TABLE].
- base_power_index + IWL_CCK_FROM_OFDM_INDEX_DIFF;
- ++power_info;
- }
- }
-
- return 0;
-}
-
-/**
- * iwl3945_hw_reg_get_ch_txpower_limit - returns new power limit for channel
- *
- * NOTE: Returned power limit may be less (but not more) than requested,
- * based strictly on regulatory (eeprom and spectrum mgt) limitations
- * (no consideration for h/w clipping limitations).
- */
-static int iwl3945_hw_reg_get_ch_txpower_limit(struct iwl_channel_info *ch_info)
-{
- s8 max_power;
-
-#if 0
- /* if we're using TGd limits, use lower of TGd or EEPROM */
- if (ch_info->tgd_data.max_power != 0)
- max_power = min(ch_info->tgd_data.max_power,
- ch_info->eeprom.max_power_avg);
-
- /* else just use EEPROM limits */
- else
-#endif
- max_power = ch_info->eeprom.max_power_avg;
-
- return min(max_power, ch_info->max_power_avg);
-}
-
-/**
- * iwl3945_hw_reg_comp_txpower_temp - Compensate for temperature
- *
- * Compensate txpower settings of *all* channels for temperature.
- * This only accounts for the difference between current temperature
- * and the factory calibration temperatures, and bases the new settings
- * on the channel's base_power_index.
- *
- * If RxOn is "associated", this sends the new Txpower to NIC!
- */
-static int iwl3945_hw_reg_comp_txpower_temp(struct iwl_priv *priv)
-{
- struct iwl_channel_info *ch_info = NULL;
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- int delta_index;
- const s8 *clip_pwrs; /* array of h/w max power levels for each rate */
- u8 a_band;
- u8 rate_index;
- u8 scan_tbl_index;
- u8 i;
- int ref_temp;
- int temperature = priv->temperature;
-
- if (priv->disable_tx_power_cal ||
- test_bit(STATUS_SCANNING, &priv->status)) {
- /* do not perform tx power calibration */
- return 0;
- }
- /* set up new Tx power info for each and every channel, 2.4 and 5.x */
- for (i = 0; i < priv->channel_count; i++) {
- ch_info = &priv->channel_info[i];
- a_band = iwl_legacy_is_channel_a_band(ch_info);
-
- /* Get this chnlgrp's factory calibration temperature */
- ref_temp = (s16)eeprom->groups[ch_info->group_index].
- temperature;
-
- /* get power index adjustment based on current and factory
- * temps */
- delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
- ref_temp);
-
- /* set tx power value for all rates, OFDM and CCK */
- for (rate_index = 0; rate_index < IWL_RATE_COUNT_3945;
- rate_index++) {
- int power_idx =
- ch_info->power_info[rate_index].base_power_index;
-
- /* temperature compensate */
- power_idx += delta_index;
-
- /* stay within table range */
- power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
- ch_info->power_info[rate_index].
- power_table_index = (u8) power_idx;
- ch_info->power_info[rate_index].tpc =
- power_gain_table[a_band][power_idx];
- }
-
- /* Get this chnlgrp's rate-to-max/clip-powers table */
- clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
-
- /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
- for (scan_tbl_index = 0;
- scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
- s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
- iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
- actual_index, clip_pwrs,
- ch_info, a_band);
- }
- }
-
- /* send Txpower command for current channel to ucode */
- return priv->cfg->ops->lib->send_tx_power(priv);
-}
-
-int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power)
-{
- struct iwl_channel_info *ch_info;
- s8 max_power;
- u8 a_band;
- u8 i;
-
- if (priv->tx_power_user_lmt == power) {
- IWL_DEBUG_POWER(priv, "Requested Tx power same as current "
- "limit: %ddBm.\n", power);
- return 0;
- }
-
- IWL_DEBUG_POWER(priv, "Setting upper limit clamp to %ddBm.\n", power);
- priv->tx_power_user_lmt = power;
-
- /* set up new Tx powers for each and every channel, 2.4 and 5.x */
-
- for (i = 0; i < priv->channel_count; i++) {
- ch_info = &priv->channel_info[i];
- a_band = iwl_legacy_is_channel_a_band(ch_info);
-
- /* find minimum power of all user and regulatory constraints
- * (does not consider h/w clipping limitations) */
- max_power = iwl3945_hw_reg_get_ch_txpower_limit(ch_info);
- max_power = min(power, max_power);
- if (max_power != ch_info->curr_txpow) {
- ch_info->curr_txpow = max_power;
-
- /* this considers the h/w clipping limitations */
- iwl3945_hw_reg_set_new_power(priv, ch_info);
- }
- }
-
- /* update txpower settings for all channels,
- * send to NIC if associated. */
- iwl3945_is_temp_calib_needed(priv);
- iwl3945_hw_reg_comp_txpower_temp(priv);
-
- return 0;
-}
-
-static int iwl3945_send_rxon_assoc(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- int rc = 0;
- struct iwl_rx_packet *pkt;
- struct iwl3945_rxon_assoc_cmd rxon_assoc;
- struct iwl_host_cmd cmd = {
- .id = REPLY_RXON_ASSOC,
- .len = sizeof(rxon_assoc),
- .flags = CMD_WANT_SKB,
- .data = &rxon_assoc,
- };
- const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging;
- const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active;
-
- if ((rxon1->flags == rxon2->flags) &&
- (rxon1->filter_flags == rxon2->filter_flags) &&
- (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
- (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
- IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
- return 0;
- }
-
- rxon_assoc.flags = ctx->staging.flags;
- rxon_assoc.filter_flags = ctx->staging.filter_flags;
- rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
- rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
- rxon_assoc.reserved = 0;
-
- rc = iwl_legacy_send_cmd_sync(priv, &cmd);
- if (rc)
- return rc;
-
- pkt = (struct iwl_rx_packet *)cmd.reply_page;
- if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from REPLY_RXON_ASSOC command\n");
- rc = -EIO;
- }
-
- iwl_legacy_free_pages(priv, cmd.reply_page);
-
- return rc;
-}
-
-/**
- * iwl3945_commit_rxon - commit staging_rxon to hardware
- *
- * The RXON command in staging_rxon is committed to the hardware and
- * the active_rxon structure is updated with the new data. This
- * function correctly transitions out of the RXON_ASSOC_MSK state if
- * a HW tune is required based on the RXON structure changes.
- */
-int iwl3945_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- /* cast away the const for active_rxon in this function */
- struct iwl3945_rxon_cmd *active_rxon = (void *)&ctx->active;
- struct iwl3945_rxon_cmd *staging_rxon = (void *)&ctx->staging;
- int rc = 0;
- bool new_assoc = !!(staging_rxon->filter_flags & RXON_FILTER_ASSOC_MSK);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EINVAL;
-
- if (!iwl_legacy_is_alive(priv))
- return -1;
-
- /* always get timestamp with Rx frame */
- staging_rxon->flags |= RXON_FLG_TSF2HOST_MSK;
-
- /* select antenna */
- staging_rxon->flags &=
- ~(RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_SEL_MSK);
- staging_rxon->flags |= iwl3945_get_antenna_flags(priv);
-
- rc = iwl_legacy_check_rxon_cmd(priv, ctx);
- if (rc) {
- IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
- return -EINVAL;
- }
-
- /* If we don't need to send a full RXON, we can use
- * iwl3945_rxon_assoc_cmd which is used to reconfigure filter
- * and other flags for the current radio configuration. */
- if (!iwl_legacy_full_rxon_required(priv,
- &priv->contexts[IWL_RXON_CTX_BSS])) {
- rc = iwl_legacy_send_rxon_assoc(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
- if (rc) {
- IWL_ERR(priv, "Error setting RXON_ASSOC "
- "configuration (%d).\n", rc);
- return rc;
- }
-
- memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
- /*
- * We do not commit tx power settings while channel changing,
- * do it now if tx power changed.
- */
- iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
- return 0;
- }
-
- /* If we are currently associated and the new config requires
- * an RXON_ASSOC and the new config wants the associated mask enabled,
- * we must clear the associated from the active configuration
- * before we apply the new config */
- if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) && new_assoc) {
- IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-
- /*
- * reserved4 and 5 could have been filled by the iwlcore code.
- * Let's clear them before pushing to the 3945.
- */
- active_rxon->reserved4 = 0;
- active_rxon->reserved5 = 0;
- rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl3945_rxon_cmd),
- &priv->contexts[IWL_RXON_CTX_BSS].active);
-
- /* If the mask clearing failed then we set
- * active_rxon back to what it was previously */
- if (rc) {
- active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
- IWL_ERR(priv, "Error clearing ASSOC_MSK on current "
- "configuration (%d).\n", rc);
- return rc;
- }
- iwl_legacy_clear_ucode_stations(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
- iwl_legacy_restore_stations(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
- }
-
- IWL_DEBUG_INFO(priv, "Sending RXON\n"
- "* with%s RXON_FILTER_ASSOC_MSK\n"
- "* channel = %d\n"
- "* bssid = %pM\n",
- (new_assoc ? "" : "out"),
- le16_to_cpu(staging_rxon->channel),
- staging_rxon->bssid_addr);
-
- /*
- * reserved4 and 5 could have been filled by the iwlcore code.
- * Let's clear them before pushing to the 3945.
- */
- staging_rxon->reserved4 = 0;
- staging_rxon->reserved5 = 0;
-
- iwl_legacy_set_rxon_hwcrypto(priv, ctx, !iwl3945_mod_params.sw_crypto);
-
- /* Apply the new configuration */
- rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RXON,
- sizeof(struct iwl3945_rxon_cmd),
- staging_rxon);
- if (rc) {
- IWL_ERR(priv, "Error setting new configuration (%d).\n", rc);
- return rc;
- }
-
- memcpy(active_rxon, staging_rxon, sizeof(*active_rxon));
-
- if (!new_assoc) {
- iwl_legacy_clear_ucode_stations(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
- iwl_legacy_restore_stations(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
- }
-
- /* If we issue a new RXON command which required a tune then we must
- * send a new TXPOWER command or we won't be able to Tx any frames */
- rc = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true);
- if (rc) {
- IWL_ERR(priv, "Error setting Tx power (%d).\n", rc);
- return rc;
- }
-
- /* Init the hardware's rate fallback order based on the band */
- rc = iwl3945_init_hw_rate_table(priv);
- if (rc) {
- IWL_ERR(priv, "Error setting HW rate table: %02X\n", rc);
- return -EIO;
- }
-
- return 0;
-}
-
-/**
- * iwl3945_reg_txpower_periodic - called when time to check our temperature.
- *
- * -- reset periodic timer
- * -- see if temp has changed enough to warrant re-calibration ... if so:
- * -- correct coeffs for temp (can reset temp timer)
- * -- save this temp as "last",
- * -- send new set of gain settings to NIC
- * NOTE: This should continue working, even when we're not associated,
- * so we can keep our internal table of scan powers current. */
-void iwl3945_reg_txpower_periodic(struct iwl_priv *priv)
-{
- /* This will kick in the "brute force"
- * iwl3945_hw_reg_comp_txpower_temp() below */
- if (!iwl3945_is_temp_calib_needed(priv))
- goto reschedule;
-
- /* Set up a new set of temp-adjusted TxPowers, send to NIC.
- * This is based *only* on current temperature,
- * ignoring any previous power measurements */
- iwl3945_hw_reg_comp_txpower_temp(priv);
-
- reschedule:
- queue_delayed_work(priv->workqueue,
- &priv->_3945.thermal_periodic, REG_RECALIB_PERIOD * HZ);
-}
-
-static void iwl3945_bg_reg_txpower_periodic(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- _3945.thermal_periodic.work);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl3945_reg_txpower_periodic(priv);
- mutex_unlock(&priv->mutex);
-}
-
-/**
- * iwl3945_hw_reg_get_ch_grp_index - find the channel-group index (0-4)
- * for the channel.
- *
- * This function is used when initializing channel-info structs.
- *
- * NOTE: These channel groups do *NOT* match the bands above!
- * These channel groups are based on factory-tested channels;
- * on A-band, EEPROM's "group frequency" entries represent the top
- * channel in each group 1-4. Group 5 All B/G channels are in group 0.
- */
-static u16 iwl3945_hw_reg_get_ch_grp_index(struct iwl_priv *priv,
- const struct iwl_channel_info *ch_info)
-{
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- struct iwl3945_eeprom_txpower_group *ch_grp = &eeprom->groups[0];
- u8 group;
- u16 group_index = 0; /* based on factory calib frequencies */
- u8 grp_channel;
-
- /* Find the group index for the channel ... don't use index 1(?) */
- if (iwl_legacy_is_channel_a_band(ch_info)) {
- for (group = 1; group < 5; group++) {
- grp_channel = ch_grp[group].group_channel;
- if (ch_info->channel <= grp_channel) {
- group_index = group;
- break;
- }
- }
- /* group 4 has a few channels *above* its factory cal freq */
- if (group == 5)
- group_index = 4;
- } else
- group_index = 0; /* 2.4 GHz, group 0 */
-
- IWL_DEBUG_POWER(priv, "Chnl %d mapped to grp %d\n", ch_info->channel,
- group_index);
- return group_index;
-}
-
-/**
- * iwl3945_hw_reg_get_matched_power_index - Interpolate to get nominal index
- *
- * Interpolate to get nominal (i.e. at factory calibration temperature) index
- * into radio/DSP gain settings table for requested power.
- */
-static int iwl3945_hw_reg_get_matched_power_index(struct iwl_priv *priv,
- s8 requested_power,
- s32 setting_index, s32 *new_index)
-{
- const struct iwl3945_eeprom_txpower_group *chnl_grp = NULL;
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- s32 index0, index1;
- s32 power = 2 * requested_power;
- s32 i;
- const struct iwl3945_eeprom_txpower_sample *samples;
- s32 gains0, gains1;
- s32 res;
- s32 denominator;
-
- chnl_grp = &eeprom->groups[setting_index];
- samples = chnl_grp->samples;
- for (i = 0; i < 5; i++) {
- if (power == samples[i].power) {
- *new_index = samples[i].gain_index;
- return 0;
- }
- }
-
- if (power > samples[1].power) {
- index0 = 0;
- index1 = 1;
- } else if (power > samples[2].power) {
- index0 = 1;
- index1 = 2;
- } else if (power > samples[3].power) {
- index0 = 2;
- index1 = 3;
- } else {
- index0 = 3;
- index1 = 4;
- }
-
- denominator = (s32) samples[index1].power - (s32) samples[index0].power;
- if (denominator == 0)
- return -EINVAL;
- gains0 = (s32) samples[index0].gain_index * (1 << 19);
- gains1 = (s32) samples[index1].gain_index * (1 << 19);
- res = gains0 + (gains1 - gains0) *
- ((s32) power - (s32) samples[index0].power) / denominator +
- (1 << 18);
- *new_index = res >> 19;
- return 0;
-}
-
-static void iwl3945_hw_reg_init_channel_groups(struct iwl_priv *priv)
-{
- u32 i;
- s32 rate_index;
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- const struct iwl3945_eeprom_txpower_group *group;
-
- IWL_DEBUG_POWER(priv, "Initializing factory calib info from EEPROM\n");
-
- for (i = 0; i < IWL_NUM_TX_CALIB_GROUPS; i++) {
- s8 *clip_pwrs; /* table of power levels for each rate */
- s8 satur_pwr; /* saturation power for each chnl group */
- group = &eeprom->groups[i];
-
- /* sanity check on factory saturation power value */
- if (group->saturation_power < 40) {
- IWL_WARN(priv, "Error: saturation power is %d, "
- "less than minimum expected 40\n",
- group->saturation_power);
- return;
- }
-
- /*
- * Derive requested power levels for each rate, based on
- * hardware capabilities (saturation power for band).
- * Basic value is 3dB down from saturation, with further
- * power reductions for highest 3 data rates. These
- * backoffs provide headroom for high rate modulation
- * power peaks, without too much distortion (clipping).
- */
- /* we'll fill in this array with h/w max power levels */
- clip_pwrs = (s8 *) priv->_3945.clip_groups[i].clip_powers;
-
- /* divide factory saturation power by 2 to find -3dB level */
- satur_pwr = (s8) (group->saturation_power >> 1);
-
- /* fill in channel group's nominal powers for each rate */
- for (rate_index = 0;
- rate_index < IWL_RATE_COUNT_3945; rate_index++, clip_pwrs++) {
- switch (rate_index) {
- case IWL_RATE_36M_INDEX_TABLE:
- if (i == 0) /* B/G */
- *clip_pwrs = satur_pwr;
- else /* A */
- *clip_pwrs = satur_pwr - 5;
- break;
- case IWL_RATE_48M_INDEX_TABLE:
- if (i == 0)
- *clip_pwrs = satur_pwr - 7;
- else
- *clip_pwrs = satur_pwr - 10;
- break;
- case IWL_RATE_54M_INDEX_TABLE:
- if (i == 0)
- *clip_pwrs = satur_pwr - 9;
- else
- *clip_pwrs = satur_pwr - 12;
- break;
- default:
- *clip_pwrs = satur_pwr;
- break;
- }
- }
- }
-}
-
-/**
- * iwl3945_txpower_set_from_eeprom - Set channel power info based on EEPROM
- *
- * Second pass (during init) to set up priv->channel_info
- *
- * Set up Tx-power settings in our channel info database for each VALID
- * (for this geo/SKU) channel, at all Tx data rates, based on eeprom values
- * and current temperature.
- *
- * Since this is based on current temperature (at init time), these values may
- * not be valid for very long, but it gives us a starting/default point,
- * and allows us to active (i.e. using Tx) scan.
- *
- * This does *not* write values to NIC, just sets up our internal table.
- */
-int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv)
-{
- struct iwl_channel_info *ch_info = NULL;
- struct iwl3945_channel_power_info *pwr_info;
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- int delta_index;
- u8 rate_index;
- u8 scan_tbl_index;
- const s8 *clip_pwrs; /* array of power levels for each rate */
- u8 gain, dsp_atten;
- s8 power;
- u8 pwr_index, base_pwr_index, a_band;
- u8 i;
- int temperature;
-
- /* save temperature reference,
- * so we can determine next time to calibrate */
- temperature = iwl3945_hw_reg_txpower_get_temperature(priv);
- priv->last_temperature = temperature;
-
- iwl3945_hw_reg_init_channel_groups(priv);
-
- /* initialize Tx power info for each and every channel, 2.4 and 5.x */
- for (i = 0, ch_info = priv->channel_info; i < priv->channel_count;
- i++, ch_info++) {
- a_band = iwl_legacy_is_channel_a_band(ch_info);
- if (!iwl_legacy_is_channel_valid(ch_info))
- continue;
-
- /* find this channel's channel group (*not* "band") index */
- ch_info->group_index =
- iwl3945_hw_reg_get_ch_grp_index(priv, ch_info);
-
- /* Get this chnlgrp's rate->max/clip-powers table */
- clip_pwrs = priv->_3945.clip_groups[ch_info->group_index].clip_powers;
-
- /* calculate power index *adjustment* value according to
- * diff between current temperature and factory temperature */
- delta_index = iwl3945_hw_reg_adjust_power_by_temp(temperature,
- eeprom->groups[ch_info->group_index].
- temperature);
-
- IWL_DEBUG_POWER(priv, "Delta index for channel %d: %d [%d]\n",
- ch_info->channel, delta_index, temperature +
- IWL_TEMP_CONVERT);
-
- /* set tx power value for all OFDM rates */
- for (rate_index = 0; rate_index < IWL_OFDM_RATES;
- rate_index++) {
- s32 uninitialized_var(power_idx);
- int rc;
-
- /* use channel group's clip-power table,
- * but don't exceed channel's max power */
- s8 pwr = min(ch_info->max_power_avg,
- clip_pwrs[rate_index]);
-
- pwr_info = &ch_info->power_info[rate_index];
-
- /* get base (i.e. at factory-measured temperature)
- * power table index for this rate's power */
- rc = iwl3945_hw_reg_get_matched_power_index(priv, pwr,
- ch_info->group_index,
- &power_idx);
- if (rc) {
- IWL_ERR(priv, "Invalid power index\n");
- return rc;
- }
- pwr_info->base_power_index = (u8) power_idx;
-
- /* temperature compensate */
- power_idx += delta_index;
-
- /* stay within range of gain table */
- power_idx = iwl3945_hw_reg_fix_power_index(power_idx);
-
- /* fill 1 OFDM rate's iwl3945_channel_power_info struct */
- pwr_info->requested_power = pwr;
- pwr_info->power_table_index = (u8) power_idx;
- pwr_info->tpc.tx_gain =
- power_gain_table[a_band][power_idx].tx_gain;
- pwr_info->tpc.dsp_atten =
- power_gain_table[a_band][power_idx].dsp_atten;
- }
-
- /* set tx power for CCK rates, based on OFDM 12 Mbit settings*/
- pwr_info = &ch_info->power_info[IWL_RATE_12M_INDEX_TABLE];
- power = pwr_info->requested_power +
- IWL_CCK_FROM_OFDM_POWER_DIFF;
- pwr_index = pwr_info->power_table_index +
- IWL_CCK_FROM_OFDM_INDEX_DIFF;
- base_pwr_index = pwr_info->base_power_index +
- IWL_CCK_FROM_OFDM_INDEX_DIFF;
-
- /* stay within table range */
- pwr_index = iwl3945_hw_reg_fix_power_index(pwr_index);
- gain = power_gain_table[a_band][pwr_index].tx_gain;
- dsp_atten = power_gain_table[a_band][pwr_index].dsp_atten;
-
- /* fill each CCK rate's iwl3945_channel_power_info structure
- * NOTE: All CCK-rate Txpwrs are the same for a given chnl!
- * NOTE: CCK rates start at end of OFDM rates! */
- for (rate_index = 0;
- rate_index < IWL_CCK_RATES; rate_index++) {
- pwr_info = &ch_info->power_info[rate_index+IWL_OFDM_RATES];
- pwr_info->requested_power = power;
- pwr_info->power_table_index = pwr_index;
- pwr_info->base_power_index = base_pwr_index;
- pwr_info->tpc.tx_gain = gain;
- pwr_info->tpc.dsp_atten = dsp_atten;
- }
-
- /* set scan tx power, 1Mbit for CCK, 6Mbit for OFDM */
- for (scan_tbl_index = 0;
- scan_tbl_index < IWL_NUM_SCAN_RATES; scan_tbl_index++) {
- s32 actual_index = (scan_tbl_index == 0) ?
- IWL_RATE_1M_INDEX_TABLE : IWL_RATE_6M_INDEX_TABLE;
- iwl3945_hw_reg_set_scan_power(priv, scan_tbl_index,
- actual_index, clip_pwrs, ch_info, a_band);
- }
- }
-
- return 0;
-}
-
-int iwl3945_hw_rxq_stop(struct iwl_priv *priv)
-{
- int rc;
-
- iwl_legacy_write_direct32(priv, FH39_RCSR_CONFIG(0), 0);
- rc = iwl_poll_direct_bit(priv, FH39_RSSR_STATUS,
- FH39_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
- if (rc < 0)
- IWL_ERR(priv, "Can't stop Rx DMA.\n");
-
- return 0;
-}
-
-int iwl3945_hw_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- int txq_id = txq->q.id;
-
- struct iwl3945_shared *shared_data = priv->_3945.shared_virt;
-
- shared_data->tx_base_ptr[txq_id] = cpu_to_le32((u32)txq->q.dma_addr);
-
- iwl_legacy_write_direct32(priv, FH39_CBCC_CTRL(txq_id), 0);
- iwl_legacy_write_direct32(priv, FH39_CBCC_BASE(txq_id), 0);
-
- iwl_legacy_write_direct32(priv, FH39_TCSR_CONFIG(txq_id),
- FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT |
- FH39_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF |
- FH39_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD |
- FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL |
- FH39_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE);
-
- /* fake read to flush all prev. writes */
- iwl_read32(priv, FH39_TSSR_CBB_BASE);
-
- return 0;
-}
-
-/*
- * HCMD utils
- */
-static u16 iwl3945_get_hcmd_size(u8 cmd_id, u16 len)
-{
- switch (cmd_id) {
- case REPLY_RXON:
- return sizeof(struct iwl3945_rxon_cmd);
- case POWER_TABLE_CMD:
- return sizeof(struct iwl3945_powertable_cmd);
- default:
- return len;
- }
-}
-
-
-static u16 iwl3945_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd,
- u8 *data)
-{
- struct iwl3945_addsta_cmd *addsta = (struct iwl3945_addsta_cmd *)data;
- addsta->mode = cmd->mode;
- memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
- memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
- addsta->station_flags = cmd->station_flags;
- addsta->station_flags_msk = cmd->station_flags_msk;
- addsta->tid_disable_tx = cpu_to_le16(0);
- addsta->rate_n_flags = cmd->rate_n_flags;
- addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
- addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
- addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
-
- return (u16)sizeof(struct iwl3945_addsta_cmd);
-}
-
-static int iwl3945_add_bssid_station(struct iwl_priv *priv,
- const u8 *addr, u8 *sta_id_r)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- int ret;
- u8 sta_id;
- unsigned long flags;
-
- if (sta_id_r)
- *sta_id_r = IWL_INVALID_STATION;
-
- ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
- if (ret) {
- IWL_ERR(priv, "Unable to add station %pM\n", addr);
- return ret;
- }
-
- if (sta_id_r)
- *sta_id_r = sta_id;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].used |= IWL_STA_LOCAL;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return 0;
-}
-static int iwl3945_manage_ibss_station(struct iwl_priv *priv,
- struct ieee80211_vif *vif, bool add)
-{
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
- int ret;
-
- if (add) {
- ret = iwl3945_add_bssid_station(priv, vif->bss_conf.bssid,
- &vif_priv->ibss_bssid_sta_id);
- if (ret)
- return ret;
-
- iwl3945_sync_sta(priv, vif_priv->ibss_bssid_sta_id,
- (priv->band == IEEE80211_BAND_5GHZ) ?
- IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP);
- iwl3945_rate_scale_init(priv->hw, vif_priv->ibss_bssid_sta_id);
-
- return 0;
- }
-
- return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id,
- vif->bss_conf.bssid);
-}
-
-/**
- * iwl3945_init_hw_rate_table - Initialize the hardware rate fallback table
- */
-int iwl3945_init_hw_rate_table(struct iwl_priv *priv)
-{
- int rc, i, index, prev_index;
- struct iwl3945_rate_scaling_cmd rate_cmd = {
- .reserved = {0, 0, 0},
- };
- struct iwl3945_rate_scaling_info *table = rate_cmd.table;
-
- for (i = 0; i < ARRAY_SIZE(iwl3945_rates); i++) {
- index = iwl3945_rates[i].table_rs_index;
-
- table[index].rate_n_flags =
- iwl3945_hw_set_rate_n_flags(iwl3945_rates[i].plcp, 0);
- table[index].try_cnt = priv->retry_rate;
- prev_index = iwl3945_get_prev_ieee_rate(i);
- table[index].next_rate_index =
- iwl3945_rates[prev_index].table_rs_index;
- }
-
- switch (priv->band) {
- case IEEE80211_BAND_5GHZ:
- IWL_DEBUG_RATE(priv, "Select A mode rate scale\n");
- /* If one of the following CCK rates is used,
- * have it fall back to the 6M OFDM rate */
- for (i = IWL_RATE_1M_INDEX_TABLE;
- i <= IWL_RATE_11M_INDEX_TABLE; i++)
- table[i].next_rate_index =
- iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
-
- /* Don't fall back to CCK rates */
- table[IWL_RATE_12M_INDEX_TABLE].next_rate_index =
- IWL_RATE_9M_INDEX_TABLE;
-
- /* Don't drop out of OFDM rates */
- table[IWL_RATE_6M_INDEX_TABLE].next_rate_index =
- iwl3945_rates[IWL_FIRST_OFDM_RATE].table_rs_index;
- break;
-
- case IEEE80211_BAND_2GHZ:
- IWL_DEBUG_RATE(priv, "Select B/G mode rate scale\n");
- /* If an OFDM rate is used, have it fall back to the
- * 1M CCK rates */
-
- if (!(priv->_3945.sta_supp_rates & IWL_OFDM_RATES_MASK) &&
- iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
-
- index = IWL_FIRST_CCK_RATE;
- for (i = IWL_RATE_6M_INDEX_TABLE;
- i <= IWL_RATE_54M_INDEX_TABLE; i++)
- table[i].next_rate_index =
- iwl3945_rates[index].table_rs_index;
-
- index = IWL_RATE_11M_INDEX_TABLE;
- /* CCK shouldn't fall back to OFDM... */
- table[index].next_rate_index = IWL_RATE_5M_INDEX_TABLE;
- }
- break;
-
- default:
- WARN_ON(1);
- break;
- }
-
- /* Update the rate scaling for control frame Tx */
- rate_cmd.table_id = 0;
- rc = iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
- &rate_cmd);
- if (rc)
- return rc;
-
- /* Update the rate scaling for data frame Tx */
- rate_cmd.table_id = 1;
- return iwl_legacy_send_cmd_pdu(priv, REPLY_RATE_SCALE, sizeof(rate_cmd),
- &rate_cmd);
-}
-
-/* Called when initializing driver */
-int iwl3945_hw_set_hw_params(struct iwl_priv *priv)
-{
- memset((void *)&priv->hw_params, 0,
- sizeof(struct iwl_hw_params));
-
- priv->_3945.shared_virt =
- dma_alloc_coherent(&priv->pci_dev->dev,
- sizeof(struct iwl3945_shared),
- &priv->_3945.shared_phys, GFP_KERNEL);
- if (!priv->_3945.shared_virt) {
- IWL_ERR(priv, "failed to allocate pci memory\n");
- return -ENOMEM;
- }
-
- /* Assign number of Usable TX queues */
- priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
-
- priv->hw_params.tfd_size = sizeof(struct iwl3945_tfd);
- priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_3K);
- priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
- priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
- priv->hw_params.max_stations = IWL3945_STATION_COUNT;
- priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL3945_BROADCAST_ID;
-
- priv->sta_key_max_num = STA_KEY_MAX_NUM;
-
- priv->hw_params.rx_wrt_ptr_reg = FH39_RSCSR_CHNL0_WPTR;
- priv->hw_params.max_beacon_itrvl = IWL39_MAX_UCODE_BEACON_INTERVAL;
- priv->hw_params.beacon_time_tsf_bits = IWL3945_EXT_BEACON_TIME_POS;
-
- return 0;
-}
-
-unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl3945_frame *frame, u8 rate)
-{
- struct iwl3945_tx_beacon_cmd *tx_beacon_cmd;
- unsigned int frame_size;
-
- tx_beacon_cmd = (struct iwl3945_tx_beacon_cmd *)&frame->u;
- memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
-
- tx_beacon_cmd->tx.sta_id =
- priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id;
- tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- frame_size = iwl3945_fill_beacon_frame(priv,
- tx_beacon_cmd->frame,
- sizeof(frame->u) - sizeof(*tx_beacon_cmd));
-
- BUG_ON(frame_size > MAX_MPDU_SIZE);
- tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
-
- tx_beacon_cmd->tx.rate = rate;
- tx_beacon_cmd->tx.tx_flags = (TX_CMD_FLG_SEQ_CTL_MSK |
- TX_CMD_FLG_TSF_MSK);
-
- /* supp_rates[0] == OFDM start at IWL_FIRST_OFDM_RATE*/
- tx_beacon_cmd->tx.supp_rates[0] =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
-
- tx_beacon_cmd->tx.supp_rates[1] =
- (IWL_CCK_BASIC_RATES_MASK & 0xF);
-
- return sizeof(struct iwl3945_tx_beacon_cmd) + frame_size;
-}
-
-void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv)
-{
- priv->rx_handlers[REPLY_TX] = iwl3945_rx_reply_tx;
- priv->rx_handlers[REPLY_3945_RX] = iwl3945_rx_reply_rx;
-}
-
-void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv)
-{
- INIT_DELAYED_WORK(&priv->_3945.thermal_periodic,
- iwl3945_bg_reg_txpower_periodic);
-}
-
-void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv)
-{
- cancel_delayed_work(&priv->_3945.thermal_periodic);
-}
-
-/* check contents of special bootstrap uCode SRAM */
-static int iwl3945_verify_bsm(struct iwl_priv *priv)
- {
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- u32 reg;
- u32 val;
-
- IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
-
- /* verify BSM SRAM contents */
- val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG);
- for (reg = BSM_SRAM_LOWER_BOUND;
- reg < BSM_SRAM_LOWER_BOUND + len;
- reg += sizeof(u32), image++) {
- val = iwl_legacy_read_prph(priv, reg);
- if (val != le32_to_cpu(*image)) {
- IWL_ERR(priv, "BSM uCode verification failed at "
- "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
- BSM_SRAM_LOWER_BOUND,
- reg - BSM_SRAM_LOWER_BOUND, len,
- val, le32_to_cpu(*image));
- return -EIO;
- }
- }
-
- IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
-
- return 0;
-}
-
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
- ******************************************************************************/
-
-/*
- * Clear the OWNER_MSK, to establish driver (instead of uCode running on
- * embedded controller) as EEPROM reader; each read is a series of pulses
- * to/from the EEPROM chip, not a single event, so even reads could conflict
- * if they weren't arbitrated by some ownership mechanism. Here, the driver
- * simply claims ownership, which should be safe when this function is called
- * (i.e. before loading uCode!).
- */
-static int iwl3945_eeprom_acquire_semaphore(struct iwl_priv *priv)
-{
- _iwl_legacy_clear_bit(priv, CSR_EEPROM_GP, CSR_EEPROM_GP_IF_OWNER_MSK);
- return 0;
-}
-
-
-static void iwl3945_eeprom_release_semaphore(struct iwl_priv *priv)
-{
- return;
-}
-
- /**
- * iwl3945_load_bsm - Load bootstrap instructions
- *
- * BSM operation:
- *
- * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
- * in special SRAM that does not power down during RFKILL. When powering back
- * up after power-saving sleeps (or during initial uCode load), the BSM loads
- * the bootstrap program into the on-board processor, and starts it.
- *
- * The bootstrap program loads (via DMA) instructions and data for a new
- * program from host DRAM locations indicated by the host driver in the
- * BSM_DRAM_* registers. Once the new program is loaded, it starts
- * automatically.
- *
- * When initializing the NIC, the host driver points the BSM to the
- * "initialize" uCode image. This uCode sets up some internal data, then
- * notifies host via "initialize alive" that it is complete.
- *
- * The host then replaces the BSM_DRAM_* pointer values to point to the
- * normal runtime uCode instructions and a backup uCode data cache buffer
- * (filled initially with starting data values for the on-board processor),
- * then triggers the "initialize" uCode to load and launch the runtime uCode,
- * which begins normal operation.
- *
- * When doing a power-save shutdown, runtime uCode saves data SRAM into
- * the backup data cache in DRAM before SRAM is powered down.
- *
- * When powering back up, the BSM loads the bootstrap program. This reloads
- * the runtime uCode instructions and the backup data cache into SRAM,
- * and re-launches the runtime uCode from where it left off.
- */
-static int iwl3945_load_bsm(struct iwl_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- dma_addr_t pinst;
- dma_addr_t pdata;
- u32 inst_len;
- u32 data_len;
- int rc;
- int i;
- u32 done;
- u32 reg_offset;
-
- IWL_DEBUG_INFO(priv, "Begin load bsm\n");
-
- /* make sure bootstrap program is no larger than BSM's SRAM size */
- if (len > IWL39_MAX_BSM_SIZE)
- return -EINVAL;
-
- /* Tell bootstrap uCode where to find the "Initialize" uCode
- * in host DRAM ... host DRAM physical address bits 31:0 for 3945.
- * NOTE: iwl3945_initialize_alive_start() will replace these values,
- * after the "initialize" uCode has run, to point to
- * runtime/protocol instructions and backup data cache. */
- pinst = priv->ucode_init.p_addr;
- pdata = priv->ucode_init_data.p_addr;
- inst_len = priv->ucode_init.len;
- data_len = priv->ucode_init_data.len;
-
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
-
- /* Fill BSM memory with bootstrap instructions */
- for (reg_offset = BSM_SRAM_LOWER_BOUND;
- reg_offset < BSM_SRAM_LOWER_BOUND + len;
- reg_offset += sizeof(u32), image++)
- _iwl_legacy_write_prph(priv, reg_offset,
- le32_to_cpu(*image));
-
- rc = iwl3945_verify_bsm(priv);
- if (rc)
- return rc;
-
- /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
- iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
- iwl_legacy_write_prph(priv, BSM_WR_MEM_DST_REG,
- IWL39_RTC_INST_LOWER_BOUND);
- iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
-
- /* Load bootstrap code into instruction SRAM now,
- * to prepare to load "initialize" uCode */
- iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START);
-
- /* Wait for load of bootstrap uCode to finish */
- for (i = 0; i < 100; i++) {
- done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG);
- if (!(done & BSM_WR_CTRL_REG_BIT_START))
- break;
- udelay(10);
- }
- if (i < 100)
- IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
- else {
- IWL_ERR(priv, "BSM write did not complete!\n");
- return -EIO;
- }
-
- /* Enable future boot loads whenever power management unit triggers it
- * (e.g. when powering back up after power-save shutdown) */
- iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG,
- BSM_WR_CTRL_REG_BIT_START_EN);
-
- return 0;
-}
-
-static struct iwl_hcmd_ops iwl3945_hcmd = {
- .rxon_assoc = iwl3945_send_rxon_assoc,
- .commit_rxon = iwl3945_commit_rxon,
-};
-
-static struct iwl_lib_ops iwl3945_lib = {
- .txq_attach_buf_to_tfd = iwl3945_hw_txq_attach_buf_to_tfd,
- .txq_free_tfd = iwl3945_hw_txq_free_tfd,
- .txq_init = iwl3945_hw_tx_queue_init,
- .load_ucode = iwl3945_load_bsm,
- .dump_nic_error_log = iwl3945_dump_nic_error_log,
- .apm_ops = {
- .init = iwl3945_apm_init,
- .config = iwl3945_nic_config,
- },
- .eeprom_ops = {
- .regulatory_bands = {
- EEPROM_REGULATORY_BAND_1_CHANNELS,
- EEPROM_REGULATORY_BAND_2_CHANNELS,
- EEPROM_REGULATORY_BAND_3_CHANNELS,
- EEPROM_REGULATORY_BAND_4_CHANNELS,
- EEPROM_REGULATORY_BAND_5_CHANNELS,
- EEPROM_REGULATORY_BAND_NO_HT40,
- EEPROM_REGULATORY_BAND_NO_HT40,
- },
- .acquire_semaphore = iwl3945_eeprom_acquire_semaphore,
- .release_semaphore = iwl3945_eeprom_release_semaphore,
- },
- .send_tx_power = iwl3945_send_tx_power,
- .is_valid_rtc_data_addr = iwl3945_hw_valid_rtc_data_addr,
-
- .debugfs_ops = {
- .rx_stats_read = iwl3945_ucode_rx_stats_read,
- .tx_stats_read = iwl3945_ucode_tx_stats_read,
- .general_stats_read = iwl3945_ucode_general_stats_read,
- },
-};
-
-static const struct iwl_legacy_ops iwl3945_legacy_ops = {
- .post_associate = iwl3945_post_associate,
- .config_ap = iwl3945_config_ap,
- .manage_ibss_station = iwl3945_manage_ibss_station,
-};
-
-static struct iwl_hcmd_utils_ops iwl3945_hcmd_utils = {
- .get_hcmd_size = iwl3945_get_hcmd_size,
- .build_addsta_hcmd = iwl3945_build_addsta_hcmd,
- .request_scan = iwl3945_request_scan,
- .post_scan = iwl3945_post_scan,
-};
-
-static const struct iwl_ops iwl3945_ops = {
- .lib = &iwl3945_lib,
- .hcmd = &iwl3945_hcmd,
- .utils = &iwl3945_hcmd_utils,
- .led = &iwl3945_led_ops,
- .legacy = &iwl3945_legacy_ops,
- .ieee80211_ops = &iwl3945_hw_ops,
-};
-
-static struct iwl_base_params iwl3945_base_params = {
- .eeprom_size = IWL3945_EEPROM_IMG_SIZE,
- .num_of_queues = IWL39_NUM_QUEUES,
- .pll_cfg_val = CSR39_ANA_PLL_CFG_VAL,
- .set_l0s = false,
- .use_bsm = true,
- .led_compensation = 64,
- .wd_timeout = IWL_DEF_WD_TIMEOUT,
-};
-
-static struct iwl_cfg iwl3945_bg_cfg = {
- .name = "3945BG",
- .fw_name_pre = IWL3945_FW_PRE,
- .ucode_api_max = IWL3945_UCODE_API_MAX,
- .ucode_api_min = IWL3945_UCODE_API_MIN,
- .sku = IWL_SKU_G,
- .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
- .ops = &iwl3945_ops,
- .mod_params = &iwl3945_mod_params,
- .base_params = &iwl3945_base_params,
- .led_mode = IWL_LED_BLINK,
-};
-
-static struct iwl_cfg iwl3945_abg_cfg = {
- .name = "3945ABG",
- .fw_name_pre = IWL3945_FW_PRE,
- .ucode_api_max = IWL3945_UCODE_API_MAX,
- .ucode_api_min = IWL3945_UCODE_API_MIN,
- .sku = IWL_SKU_A|IWL_SKU_G,
- .eeprom_ver = EEPROM_3945_EEPROM_VERSION,
- .ops = &iwl3945_ops,
- .mod_params = &iwl3945_mod_params,
- .base_params = &iwl3945_base_params,
- .led_mode = IWL_LED_BLINK,
-};
-
-DEFINE_PCI_DEVICE_TABLE(iwl3945_hw_card_ids) = {
- {IWL_PCI_DEVICE(0x4222, 0x1005, iwl3945_bg_cfg)},
- {IWL_PCI_DEVICE(0x4222, 0x1034, iwl3945_bg_cfg)},
- {IWL_PCI_DEVICE(0x4222, 0x1044, iwl3945_bg_cfg)},
- {IWL_PCI_DEVICE(0x4227, 0x1014, iwl3945_bg_cfg)},
- {IWL_PCI_DEVICE(0x4222, PCI_ANY_ID, iwl3945_abg_cfg)},
- {IWL_PCI_DEVICE(0x4227, PCI_ANY_ID, iwl3945_abg_cfg)},
- {0}
-};
-
-MODULE_DEVICE_TABLE(pci, iwl3945_hw_card_ids);
diff --git a/drivers/net/wireless/iwlegacy/iwl-3945.h b/drivers/net/wireless/iwlegacy/iwl-3945.h
deleted file mode 100644
index b118b59..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-3945.h
+++ /dev/null
@@ -1,308 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-/*
- * Please use this file (iwl-3945.h) for driver implementation definitions.
- * Please use iwl-3945-commands.h for uCode API definitions.
- * Please use iwl-3945-hw.h for hardware-related definitions.
- */
-
-#ifndef __iwl_3945_h__
-#define __iwl_3945_h__
-
-#include <linux/pci.h> /* for struct pci_device_id */
-#include <linux/kernel.h>
-#include <net/ieee80211_radiotap.h>
-
-/* Hardware specific file defines the PCI IDs table for that hardware module */
-extern const struct pci_device_id iwl3945_hw_card_ids[];
-
-#include "iwl-csr.h"
-#include "iwl-prph.h"
-#include "iwl-fh.h"
-#include "iwl-3945-hw.h"
-#include "iwl-debug.h"
-#include "iwl-power.h"
-#include "iwl-dev.h"
-#include "iwl-led.h"
-
-/* Highest firmware API version supported */
-#define IWL3945_UCODE_API_MAX 2
-
-/* Lowest firmware API version supported */
-#define IWL3945_UCODE_API_MIN 1
-
-#define IWL3945_FW_PRE "iwlwifi-3945-"
-#define _IWL3945_MODULE_FIRMWARE(api) IWL3945_FW_PRE #api ".ucode"
-#define IWL3945_MODULE_FIRMWARE(api) _IWL3945_MODULE_FIRMWARE(api)
-
-/* Default noise level to report when noise measurement is not available.
- * This may be because we're:
- * 1) Not associated (4965, no beacon statistics being sent to driver)
- * 2) Scanning (noise measurement does not apply to associated channel)
- * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
- * Use default noise value of -127 ... this is below the range of measurable
- * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
- * Also, -127 works better than 0 when averaging frames with/without
- * noise info (e.g. averaging might be done in app); measured dBm values are
- * always negative ... using a negative value as the default keeps all
- * averages within an s8's (used in some apps) range of negative values. */
-#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
-
-/* Module parameters accessible from iwl-*.c */
-extern struct iwl_mod_params iwl3945_mod_params;
-
-struct iwl3945_rate_scale_data {
- u64 data;
- s32 success_counter;
- s32 success_ratio;
- s32 counter;
- s32 average_tpt;
- unsigned long stamp;
-};
-
-struct iwl3945_rs_sta {
- spinlock_t lock;
- struct iwl_priv *priv;
- s32 *expected_tpt;
- unsigned long last_partial_flush;
- unsigned long last_flush;
- u32 flush_time;
- u32 last_tx_packets;
- u32 tx_packets;
- u8 tgg;
- u8 flush_pending;
- u8 start_rate;
- struct timer_list rate_scale_flush;
- struct iwl3945_rate_scale_data win[IWL_RATE_COUNT_3945];
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *rs_sta_dbgfs_stats_table_file;
-#endif
-
- /* used to be in sta_info */
- int last_txrate_idx;
-};
-
-
-/*
- * The common struct MUST be first because it is shared between
- * 3945 and 4965!
- */
-struct iwl3945_sta_priv {
- struct iwl_station_priv_common common;
- struct iwl3945_rs_sta rs_sta;
-};
-
-enum iwl3945_antenna {
- IWL_ANTENNA_DIVERSITY,
- IWL_ANTENNA_MAIN,
- IWL_ANTENNA_AUX
-};
-
-/*
- * RTS threshold here is total size [2347] minus 4 FCS bytes
- * Per spec:
- * a value of 0 means RTS on all data/management packets
- * a value > max MSDU size means no RTS
- * else RTS for data/management frames where MPDU is larger
- * than RTS value.
- */
-#define DEFAULT_RTS_THRESHOLD 2347U
-#define MIN_RTS_THRESHOLD 0U
-#define MAX_RTS_THRESHOLD 2347U
-#define MAX_MSDU_SIZE 2304U
-#define MAX_MPDU_SIZE 2346U
-#define DEFAULT_BEACON_INTERVAL 100U
-#define DEFAULT_SHORT_RETRY_LIMIT 7U
-#define DEFAULT_LONG_RETRY_LIMIT 4U
-
-#define IWL_TX_FIFO_AC0 0
-#define IWL_TX_FIFO_AC1 1
-#define IWL_TX_FIFO_AC2 2
-#define IWL_TX_FIFO_AC3 3
-#define IWL_TX_FIFO_HCCA_1 5
-#define IWL_TX_FIFO_HCCA_2 6
-#define IWL_TX_FIFO_NONE 7
-
-#define IEEE80211_DATA_LEN 2304
-#define IEEE80211_4ADDR_LEN 30
-#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
-#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
-
-struct iwl3945_frame {
- union {
- struct ieee80211_hdr frame;
- struct iwl3945_tx_beacon_cmd beacon;
- u8 raw[IEEE80211_FRAME_LEN];
- u8 cmd[360];
- } u;
- struct list_head list;
-};
-
-#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
-
-#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
-#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
-#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
-
-#define IWL_SUPPORTED_RATES_IE_LEN 8
-
-#define SCAN_INTERVAL 100
-
-#define MAX_TID_COUNT 9
-
-#define IWL_INVALID_RATE 0xFF
-#define IWL_INVALID_VALUE -1
-
-#define STA_PS_STATUS_WAKE 0
-#define STA_PS_STATUS_SLEEP 1
-
-struct iwl3945_ibss_seq {
- u8 mac[ETH_ALEN];
- u16 seq_num;
- u16 frag_num;
- unsigned long packet_time;
- struct list_head list;
-};
-
-#define IWL_RX_HDR(x) ((struct iwl3945_rx_frame_hdr *)(\
- x->u.rx_frame.stats.payload + \
- x->u.rx_frame.stats.phy_count))
-#define IWL_RX_END(x) ((struct iwl3945_rx_frame_end *)(\
- IWL_RX_HDR(x)->payload + \
- le16_to_cpu(IWL_RX_HDR(x)->len)))
-#define IWL_RX_STATS(x) (&x->u.rx_frame.stats)
-#define IWL_RX_DATA(x) (IWL_RX_HDR(x)->payload)
-
-
-/******************************************************************************
- *
- * Functions implemented in iwl3945-base.c which are forward declared here
- * for use by iwl-*.c
- *
- *****************************************************************************/
-extern int iwl3945_calc_db_from_ratio(int sig_ratio);
-extern void iwl3945_rx_replenish(void *data);
-extern void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
-extern unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr, int left);
-extern int iwl3945_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
- char **buf, bool display);
-extern void iwl3945_dump_nic_error_log(struct iwl_priv *priv);
-
-/******************************************************************************
- *
- * Functions implemented in iwl-[34]*.c which are forward declared here
- * for use by iwl3945-base.c
- *
- * NOTE: The implementation of these functions are hardware specific
- * which is why they are in the hardware specific files (vs. iwl-base.c)
- *
- * Naming convention --
- * iwl3945_ <-- Its part of iwlwifi (should be changed to iwl3945_)
- * iwl3945_hw_ <-- Hardware specific (implemented in iwl-XXXX.c by all HW)
- * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
- * iwl3945_bg_ <-- Called from work queue context
- * iwl3945_mac_ <-- mac80211 callback
- *
- ****************************************************************************/
-extern void iwl3945_hw_rx_handler_setup(struct iwl_priv *priv);
-extern void iwl3945_hw_setup_deferred_work(struct iwl_priv *priv);
-extern void iwl3945_hw_cancel_deferred_work(struct iwl_priv *priv);
-extern int iwl3945_hw_rxq_stop(struct iwl_priv *priv);
-extern int iwl3945_hw_set_hw_params(struct iwl_priv *priv);
-extern int iwl3945_hw_nic_init(struct iwl_priv *priv);
-extern int iwl3945_hw_nic_stop_master(struct iwl_priv *priv);
-extern void iwl3945_hw_txq_ctx_free(struct iwl_priv *priv);
-extern void iwl3945_hw_txq_ctx_stop(struct iwl_priv *priv);
-extern int iwl3945_hw_nic_reset(struct iwl_priv *priv);
-extern int iwl3945_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- dma_addr_t addr, u16 len,
- u8 reset, u8 pad);
-extern void iwl3945_hw_txq_free_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
-extern int iwl3945_hw_get_temperature(struct iwl_priv *priv);
-extern int iwl3945_hw_tx_queue_init(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
-extern unsigned int iwl3945_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl3945_frame *frame, u8 rate);
-void iwl3945_hw_build_tx_cmd_rate(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct ieee80211_tx_info *info,
- struct ieee80211_hdr *hdr,
- int sta_id, int tx_id);
-extern int iwl3945_hw_reg_send_txpower(struct iwl_priv *priv);
-extern int iwl3945_hw_reg_set_txpower(struct iwl_priv *priv, s8 power);
-extern void iwl3945_hw_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl3945_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-extern void iwl3945_disable_events(struct iwl_priv *priv);
-extern int iwl4965_get_temperature(const struct iwl_priv *priv);
-extern void iwl3945_post_associate(struct iwl_priv *priv);
-extern void iwl3945_config_ap(struct iwl_priv *priv);
-
-extern int iwl3945_commit_rxon(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-
-/**
- * iwl3945_hw_find_station - Find station id for a given BSSID
- * @bssid: MAC address of station ID to find
- *
- * NOTE: This should not be hardware specific but the code has
- * not yet been merged into a single common layer for managing the
- * station tables.
- */
-extern u8 iwl3945_hw_find_station(struct iwl_priv *priv, const u8 *bssid);
-
-extern struct ieee80211_ops iwl3945_hw_ops;
-
-/*
- * Forward declare iwl-3945.c functions for iwl3945-base.c
- */
-extern __le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv);
-extern int iwl3945_init_hw_rate_table(struct iwl_priv *priv);
-extern void iwl3945_reg_txpower_periodic(struct iwl_priv *priv);
-extern int iwl3945_txpower_set_from_eeprom(struct iwl_priv *priv);
-
-extern const struct iwl_channel_info *iwl3945_get_channel_info(
- const struct iwl_priv *priv, enum ieee80211_band band, u16 channel);
-
-extern int iwl3945_rs_next_rate(struct iwl_priv *priv, int rate);
-
-/* scanning */
-int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
-void iwl3945_post_scan(struct iwl_priv *priv);
-
-/* rates */
-extern const struct iwl3945_rate_info iwl3945_rates[IWL_RATE_COUNT_3945];
-
-/* Requires full declaration of iwl_priv before including */
-#include "iwl-io.h"
-
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-calib.c b/drivers/net/wireless/iwlegacy/iwl-4965-calib.c
deleted file mode 100644
index 162d877..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-calib.c
+++ /dev/null
@@ -1,967 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-#include <linux/slab.h>
-#include <net/mac80211.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-4965-calib.h"
-
-/*****************************************************************************
- * INIT calibrations framework
- *****************************************************************************/
-
-struct statistics_general_data {
- u32 beacon_silence_rssi_a;
- u32 beacon_silence_rssi_b;
- u32 beacon_silence_rssi_c;
- u32 beacon_energy_a;
- u32 beacon_energy_b;
- u32 beacon_energy_c;
-};
-
-void iwl4965_calib_free_results(struct iwl_priv *priv)
-{
- int i;
-
- for (i = 0; i < IWL_CALIB_MAX; i++) {
- kfree(priv->calib_results[i].buf);
- priv->calib_results[i].buf = NULL;
- priv->calib_results[i].buf_len = 0;
- }
-}
-
-/*****************************************************************************
- * RUNTIME calibrations framework
- *****************************************************************************/
-
-/* "false alarms" are signals that our DSP tries to lock onto,
- * but then determines that they are either noise, or transmissions
- * from a distant wireless network (also "noise", really) that get
- * "stepped on" by stronger transmissions within our own network.
- * This algorithm attempts to set a sensitivity level that is high
- * enough to receive all of our own network traffic, but not so
- * high that our DSP gets too busy trying to lock onto non-network
- * activity/noise. */
-static int iwl4965_sens_energy_cck(struct iwl_priv *priv,
- u32 norm_fa,
- u32 rx_enable_time,
- struct statistics_general_data *rx_info)
-{
- u32 max_nrg_cck = 0;
- int i = 0;
- u8 max_silence_rssi = 0;
- u32 silence_ref = 0;
- u8 silence_rssi_a = 0;
- u8 silence_rssi_b = 0;
- u8 silence_rssi_c = 0;
- u32 val;
-
- /* "false_alarms" values below are cross-multiplications to assess the
- * numbers of false alarms within the measured period of actual Rx
- * (Rx is off when we're txing), vs the min/max expected false alarms
- * (some should be expected if rx is sensitive enough) in a
- * hypothetical listening period of 200 time units (TU), 204.8 msec:
- *
- * MIN_FA/fixed-time < false_alarms/actual-rx-time < MAX_FA/beacon-time
- *
- * */
- u32 false_alarms = norm_fa * 200 * 1024;
- u32 max_false_alarms = MAX_FA_CCK * rx_enable_time;
- u32 min_false_alarms = MIN_FA_CCK * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
- const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
-
- data = &(priv->sensitivity_data);
-
- data->nrg_auto_corr_silence_diff = 0;
-
- /* Find max silence rssi among all 3 receivers.
- * This is background noise, which may include transmissions from other
- * networks, measured during silence before our network's beacon */
- silence_rssi_a = (u8)((rx_info->beacon_silence_rssi_a &
- ALL_BAND_FILTER) >> 8);
- silence_rssi_b = (u8)((rx_info->beacon_silence_rssi_b &
- ALL_BAND_FILTER) >> 8);
- silence_rssi_c = (u8)((rx_info->beacon_silence_rssi_c &
- ALL_BAND_FILTER) >> 8);
-
- val = max(silence_rssi_b, silence_rssi_c);
- max_silence_rssi = max(silence_rssi_a, (u8) val);
-
- /* Store silence rssi in 20-beacon history table */
- data->nrg_silence_rssi[data->nrg_silence_idx] = max_silence_rssi;
- data->nrg_silence_idx++;
- if (data->nrg_silence_idx >= NRG_NUM_PREV_STAT_L)
- data->nrg_silence_idx = 0;
-
- /* Find max silence rssi across 20 beacon history */
- for (i = 0; i < NRG_NUM_PREV_STAT_L; i++) {
- val = data->nrg_silence_rssi[i];
- silence_ref = max(silence_ref, val);
- }
- IWL_DEBUG_CALIB(priv, "silence a %u, b %u, c %u, 20-bcn max %u\n",
- silence_rssi_a, silence_rssi_b, silence_rssi_c,
- silence_ref);
-
- /* Find max rx energy (min value!) among all 3 receivers,
- * measured during beacon frame.
- * Save it in 10-beacon history table. */
- i = data->nrg_energy_idx;
- val = min(rx_info->beacon_energy_b, rx_info->beacon_energy_c);
- data->nrg_value[i] = min(rx_info->beacon_energy_a, val);
-
- data->nrg_energy_idx++;
- if (data->nrg_energy_idx >= 10)
- data->nrg_energy_idx = 0;
-
- /* Find min rx energy (max value) across 10 beacon history.
- * This is the minimum signal level that we want to receive well.
- * Add backoff (margin so we don't miss slightly lower energy frames).
- * This establishes an upper bound (min value) for energy threshold. */
- max_nrg_cck = data->nrg_value[0];
- for (i = 1; i < 10; i++)
- max_nrg_cck = (u32) max(max_nrg_cck, (data->nrg_value[i]));
- max_nrg_cck += 6;
-
- IWL_DEBUG_CALIB(priv, "rx energy a %u, b %u, c %u, 10-bcn max/min %u\n",
- rx_info->beacon_energy_a, rx_info->beacon_energy_b,
- rx_info->beacon_energy_c, max_nrg_cck - 6);
-
- /* Count number of consecutive beacons with fewer-than-desired
- * false alarms. */
- if (false_alarms < min_false_alarms)
- data->num_in_cck_no_fa++;
- else
- data->num_in_cck_no_fa = 0;
- IWL_DEBUG_CALIB(priv, "consecutive bcns with few false alarms = %u\n",
- data->num_in_cck_no_fa);
-
- /* If we got too many false alarms this time, reduce sensitivity */
- if ((false_alarms > max_false_alarms) &&
- (data->auto_corr_cck > AUTO_CORR_MAX_TH_CCK)) {
- IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u\n",
- false_alarms, max_false_alarms);
- IWL_DEBUG_CALIB(priv, "... reducing sensitivity\n");
- data->nrg_curr_state = IWL_FA_TOO_MANY;
- /* Store for "fewer than desired" on later beacon */
- data->nrg_silence_ref = silence_ref;
-
- /* increase energy threshold (reduce nrg value)
- * to decrease sensitivity */
- data->nrg_th_cck = data->nrg_th_cck - NRG_STEP_CCK;
- /* Else if we got fewer than desired, increase sensitivity */
- } else if (false_alarms < min_false_alarms) {
- data->nrg_curr_state = IWL_FA_TOO_FEW;
-
- /* Compare silence level with silence level for most recent
- * healthy number or too many false alarms */
- data->nrg_auto_corr_silence_diff = (s32)data->nrg_silence_ref -
- (s32)silence_ref;
-
- IWL_DEBUG_CALIB(priv,
- "norm FA %u < min FA %u, silence diff %d\n",
- false_alarms, min_false_alarms,
- data->nrg_auto_corr_silence_diff);
-
- /* Increase value to increase sensitivity, but only if:
- * 1a) previous beacon did *not* have *too many* false alarms
- * 1b) AND there's a significant difference in Rx levels
- * from a previous beacon with too many, or healthy # FAs
- * OR 2) We've seen a lot of beacons (100) with too few
- * false alarms */
- if ((data->nrg_prev_state != IWL_FA_TOO_MANY) &&
- ((data->nrg_auto_corr_silence_diff > NRG_DIFF) ||
- (data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) {
-
- IWL_DEBUG_CALIB(priv, "... increasing sensitivity\n");
- /* Increase nrg value to increase sensitivity */
- val = data->nrg_th_cck + NRG_STEP_CCK;
- data->nrg_th_cck = min((u32)ranges->min_nrg_cck, val);
- } else {
- IWL_DEBUG_CALIB(priv,
- "... but not changing sensitivity\n");
- }
-
- /* Else we got a healthy number of false alarms, keep status quo */
- } else {
- IWL_DEBUG_CALIB(priv, " FA in safe zone\n");
- data->nrg_curr_state = IWL_FA_GOOD_RANGE;
-
- /* Store for use in "fewer than desired" with later beacon */
- data->nrg_silence_ref = silence_ref;
-
- /* If previous beacon had too many false alarms,
- * give it some extra margin by reducing sensitivity again
- * (but don't go below measured energy of desired Rx) */
- if (IWL_FA_TOO_MANY == data->nrg_prev_state) {
- IWL_DEBUG_CALIB(priv, "... increasing margin\n");
- if (data->nrg_th_cck > (max_nrg_cck + NRG_MARGIN))
- data->nrg_th_cck -= NRG_MARGIN;
- else
- data->nrg_th_cck = max_nrg_cck;
- }
- }
-
- /* Make sure the energy threshold does not go above the measured
- * energy of the desired Rx signals (reduced by backoff margin),
- * or else we might start missing Rx frames.
- * Lower value is higher energy, so we use max()!
- */
- data->nrg_th_cck = max(max_nrg_cck, data->nrg_th_cck);
- IWL_DEBUG_CALIB(priv, "new nrg_th_cck %u\n", data->nrg_th_cck);
-
- data->nrg_prev_state = data->nrg_curr_state;
-
- /* Auto-correlation CCK algorithm */
- if (false_alarms > min_false_alarms) {
-
- /* increase auto_corr values to decrease sensitivity
- * so the DSP won't be disturbed by the noise
- */
- if (data->auto_corr_cck < AUTO_CORR_MAX_TH_CCK)
- data->auto_corr_cck = AUTO_CORR_MAX_TH_CCK + 1;
- else {
- val = data->auto_corr_cck + AUTO_CORR_STEP_CCK;
- data->auto_corr_cck =
- min((u32)ranges->auto_corr_max_cck, val);
- }
- val = data->auto_corr_cck_mrc + AUTO_CORR_STEP_CCK;
- data->auto_corr_cck_mrc =
- min((u32)ranges->auto_corr_max_cck_mrc, val);
- } else if ((false_alarms < min_false_alarms) &&
- ((data->nrg_auto_corr_silence_diff > NRG_DIFF) ||
- (data->num_in_cck_no_fa > MAX_NUMBER_CCK_NO_FA))) {
-
- /* Decrease auto_corr values to increase sensitivity */
- val = data->auto_corr_cck - AUTO_CORR_STEP_CCK;
- data->auto_corr_cck =
- max((u32)ranges->auto_corr_min_cck, val);
- val = data->auto_corr_cck_mrc - AUTO_CORR_STEP_CCK;
- data->auto_corr_cck_mrc =
- max((u32)ranges->auto_corr_min_cck_mrc, val);
- }
-
- return 0;
-}
-
-
-static int iwl4965_sens_auto_corr_ofdm(struct iwl_priv *priv,
- u32 norm_fa,
- u32 rx_enable_time)
-{
- u32 val;
- u32 false_alarms = norm_fa * 200 * 1024;
- u32 max_false_alarms = MAX_FA_OFDM * rx_enable_time;
- u32 min_false_alarms = MIN_FA_OFDM * rx_enable_time;
- struct iwl_sensitivity_data *data = NULL;
- const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
-
- data = &(priv->sensitivity_data);
-
- /* If we got too many false alarms this time, reduce sensitivity */
- if (false_alarms > max_false_alarms) {
-
- IWL_DEBUG_CALIB(priv, "norm FA %u > max FA %u)\n",
- false_alarms, max_false_alarms);
-
- val = data->auto_corr_ofdm + AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm =
- min((u32)ranges->auto_corr_max_ofdm, val);
-
- val = data->auto_corr_ofdm_mrc + AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_mrc =
- min((u32)ranges->auto_corr_max_ofdm_mrc, val);
-
- val = data->auto_corr_ofdm_x1 + AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_x1 =
- min((u32)ranges->auto_corr_max_ofdm_x1, val);
-
- val = data->auto_corr_ofdm_mrc_x1 + AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_mrc_x1 =
- min((u32)ranges->auto_corr_max_ofdm_mrc_x1, val);
- }
-
- /* Else if we got fewer than desired, increase sensitivity */
- else if (false_alarms < min_false_alarms) {
-
- IWL_DEBUG_CALIB(priv, "norm FA %u < min FA %u\n",
- false_alarms, min_false_alarms);
-
- val = data->auto_corr_ofdm - AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm =
- max((u32)ranges->auto_corr_min_ofdm, val);
-
- val = data->auto_corr_ofdm_mrc - AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_mrc =
- max((u32)ranges->auto_corr_min_ofdm_mrc, val);
-
- val = data->auto_corr_ofdm_x1 - AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_x1 =
- max((u32)ranges->auto_corr_min_ofdm_x1, val);
-
- val = data->auto_corr_ofdm_mrc_x1 - AUTO_CORR_STEP_OFDM;
- data->auto_corr_ofdm_mrc_x1 =
- max((u32)ranges->auto_corr_min_ofdm_mrc_x1, val);
- } else {
- IWL_DEBUG_CALIB(priv, "min FA %u < norm FA %u < max FA %u OK\n",
- min_false_alarms, false_alarms, max_false_alarms);
- }
- return 0;
-}
-
-static void iwl4965_prepare_legacy_sensitivity_tbl(struct iwl_priv *priv,
- struct iwl_sensitivity_data *data,
- __le16 *tbl)
-{
- tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_INDEX] =
- cpu_to_le16((u16)data->auto_corr_ofdm);
- tbl[HD_AUTO_CORR32_X4_TH_ADD_MIN_MRC_INDEX] =
- cpu_to_le16((u16)data->auto_corr_ofdm_mrc);
- tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_INDEX] =
- cpu_to_le16((u16)data->auto_corr_ofdm_x1);
- tbl[HD_AUTO_CORR32_X1_TH_ADD_MIN_MRC_INDEX] =
- cpu_to_le16((u16)data->auto_corr_ofdm_mrc_x1);
-
- tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_INDEX] =
- cpu_to_le16((u16)data->auto_corr_cck);
- tbl[HD_AUTO_CORR40_X4_TH_ADD_MIN_MRC_INDEX] =
- cpu_to_le16((u16)data->auto_corr_cck_mrc);
-
- tbl[HD_MIN_ENERGY_CCK_DET_INDEX] =
- cpu_to_le16((u16)data->nrg_th_cck);
- tbl[HD_MIN_ENERGY_OFDM_DET_INDEX] =
- cpu_to_le16((u16)data->nrg_th_ofdm);
-
- tbl[HD_BARKER_CORR_TH_ADD_MIN_INDEX] =
- cpu_to_le16(data->barker_corr_th_min);
- tbl[HD_BARKER_CORR_TH_ADD_MIN_MRC_INDEX] =
- cpu_to_le16(data->barker_corr_th_min_mrc);
- tbl[HD_OFDM_ENERGY_TH_IN_INDEX] =
- cpu_to_le16(data->nrg_th_cca);
-
- IWL_DEBUG_CALIB(priv, "ofdm: ac %u mrc %u x1 %u mrc_x1 %u thresh %u\n",
- data->auto_corr_ofdm, data->auto_corr_ofdm_mrc,
- data->auto_corr_ofdm_x1, data->auto_corr_ofdm_mrc_x1,
- data->nrg_th_ofdm);
-
- IWL_DEBUG_CALIB(priv, "cck: ac %u mrc %u thresh %u\n",
- data->auto_corr_cck, data->auto_corr_cck_mrc,
- data->nrg_th_cck);
-}
-
-/* Prepare a SENSITIVITY_CMD, send to uCode if values have changed */
-static int iwl4965_sensitivity_write(struct iwl_priv *priv)
-{
- struct iwl_sensitivity_cmd cmd;
- struct iwl_sensitivity_data *data = NULL;
- struct iwl_host_cmd cmd_out = {
- .id = SENSITIVITY_CMD,
- .len = sizeof(struct iwl_sensitivity_cmd),
- .flags = CMD_ASYNC,
- .data = &cmd,
- };
-
- data = &(priv->sensitivity_data);
-
- memset(&cmd, 0, sizeof(cmd));
-
- iwl4965_prepare_legacy_sensitivity_tbl(priv, data, &cmd.table[0]);
-
- /* Update uCode's "work" table, and copy it to DSP */
- cmd.control = SENSITIVITY_CMD_CONTROL_WORK_TABLE;
-
- /* Don't send command to uCode if nothing has changed */
- if (!memcmp(&cmd.table[0], &(priv->sensitivity_tbl[0]),
- sizeof(u16)*HD_TABLE_SIZE)) {
- IWL_DEBUG_CALIB(priv, "No change in SENSITIVITY_CMD\n");
- return 0;
- }
-
- /* Copy table for comparison next time */
- memcpy(&(priv->sensitivity_tbl[0]), &(cmd.table[0]),
- sizeof(u16)*HD_TABLE_SIZE);
-
- return iwl_legacy_send_cmd(priv, &cmd_out);
-}
-
-void iwl4965_init_sensitivity(struct iwl_priv *priv)
-{
- int ret = 0;
- int i;
- struct iwl_sensitivity_data *data = NULL;
- const struct iwl_sensitivity_ranges *ranges = priv->hw_params.sens;
-
- if (priv->disable_sens_cal)
- return;
-
- IWL_DEBUG_CALIB(priv, "Start iwl4965_init_sensitivity\n");
-
- /* Clear driver's sensitivity algo data */
- data = &(priv->sensitivity_data);
-
- if (ranges == NULL)
- return;
-
- memset(data, 0, sizeof(struct iwl_sensitivity_data));
-
- data->num_in_cck_no_fa = 0;
- data->nrg_curr_state = IWL_FA_TOO_MANY;
- data->nrg_prev_state = IWL_FA_TOO_MANY;
- data->nrg_silence_ref = 0;
- data->nrg_silence_idx = 0;
- data->nrg_energy_idx = 0;
-
- for (i = 0; i < 10; i++)
- data->nrg_value[i] = 0;
-
- for (i = 0; i < NRG_NUM_PREV_STAT_L; i++)
- data->nrg_silence_rssi[i] = 0;
-
- data->auto_corr_ofdm = ranges->auto_corr_min_ofdm;
- data->auto_corr_ofdm_mrc = ranges->auto_corr_min_ofdm_mrc;
- data->auto_corr_ofdm_x1 = ranges->auto_corr_min_ofdm_x1;
- data->auto_corr_ofdm_mrc_x1 = ranges->auto_corr_min_ofdm_mrc_x1;
- data->auto_corr_cck = AUTO_CORR_CCK_MIN_VAL_DEF;
- data->auto_corr_cck_mrc = ranges->auto_corr_min_cck_mrc;
- data->nrg_th_cck = ranges->nrg_th_cck;
- data->nrg_th_ofdm = ranges->nrg_th_ofdm;
- data->barker_corr_th_min = ranges->barker_corr_th_min;
- data->barker_corr_th_min_mrc = ranges->barker_corr_th_min_mrc;
- data->nrg_th_cca = ranges->nrg_th_cca;
-
- data->last_bad_plcp_cnt_ofdm = 0;
- data->last_fa_cnt_ofdm = 0;
- data->last_bad_plcp_cnt_cck = 0;
- data->last_fa_cnt_cck = 0;
-
- ret |= iwl4965_sensitivity_write(priv);
- IWL_DEBUG_CALIB(priv, "<<return 0x%X\n", ret);
-}
-
-void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp)
-{
- u32 rx_enable_time;
- u32 fa_cck;
- u32 fa_ofdm;
- u32 bad_plcp_cck;
- u32 bad_plcp_ofdm;
- u32 norm_fa_ofdm;
- u32 norm_fa_cck;
- struct iwl_sensitivity_data *data = NULL;
- struct statistics_rx_non_phy *rx_info;
- struct statistics_rx_phy *ofdm, *cck;
- unsigned long flags;
- struct statistics_general_data statis;
-
- if (priv->disable_sens_cal)
- return;
-
- data = &(priv->sensitivity_data);
-
- if (!iwl_legacy_is_any_associated(priv)) {
- IWL_DEBUG_CALIB(priv, "<< - not associated\n");
- return;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- rx_info = &(((struct iwl_notif_statistics *)resp)->rx.general);
- ofdm = &(((struct iwl_notif_statistics *)resp)->rx.ofdm);
- cck = &(((struct iwl_notif_statistics *)resp)->rx.cck);
-
- if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
- IWL_DEBUG_CALIB(priv, "<< invalid data.\n");
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- /* Extract Statistics: */
- rx_enable_time = le32_to_cpu(rx_info->channel_load);
- fa_cck = le32_to_cpu(cck->false_alarm_cnt);
- fa_ofdm = le32_to_cpu(ofdm->false_alarm_cnt);
- bad_plcp_cck = le32_to_cpu(cck->plcp_err);
- bad_plcp_ofdm = le32_to_cpu(ofdm->plcp_err);
-
- statis.beacon_silence_rssi_a =
- le32_to_cpu(rx_info->beacon_silence_rssi_a);
- statis.beacon_silence_rssi_b =
- le32_to_cpu(rx_info->beacon_silence_rssi_b);
- statis.beacon_silence_rssi_c =
- le32_to_cpu(rx_info->beacon_silence_rssi_c);
- statis.beacon_energy_a =
- le32_to_cpu(rx_info->beacon_energy_a);
- statis.beacon_energy_b =
- le32_to_cpu(rx_info->beacon_energy_b);
- statis.beacon_energy_c =
- le32_to_cpu(rx_info->beacon_energy_c);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_CALIB(priv, "rx_enable_time = %u usecs\n", rx_enable_time);
-
- if (!rx_enable_time) {
- IWL_DEBUG_CALIB(priv, "<< RX Enable Time == 0!\n");
- return;
- }
-
- /* These statistics increase monotonically, and do not reset
- * at each beacon. Calculate difference from last value, or just
- * use the new statistics value if it has reset or wrapped around. */
- if (data->last_bad_plcp_cnt_cck > bad_plcp_cck)
- data->last_bad_plcp_cnt_cck = bad_plcp_cck;
- else {
- bad_plcp_cck -= data->last_bad_plcp_cnt_cck;
- data->last_bad_plcp_cnt_cck += bad_plcp_cck;
- }
-
- if (data->last_bad_plcp_cnt_ofdm > bad_plcp_ofdm)
- data->last_bad_plcp_cnt_ofdm = bad_plcp_ofdm;
- else {
- bad_plcp_ofdm -= data->last_bad_plcp_cnt_ofdm;
- data->last_bad_plcp_cnt_ofdm += bad_plcp_ofdm;
- }
-
- if (data->last_fa_cnt_ofdm > fa_ofdm)
- data->last_fa_cnt_ofdm = fa_ofdm;
- else {
- fa_ofdm -= data->last_fa_cnt_ofdm;
- data->last_fa_cnt_ofdm += fa_ofdm;
- }
-
- if (data->last_fa_cnt_cck > fa_cck)
- data->last_fa_cnt_cck = fa_cck;
- else {
- fa_cck -= data->last_fa_cnt_cck;
- data->last_fa_cnt_cck += fa_cck;
- }
-
- /* Total aborted signal locks */
- norm_fa_ofdm = fa_ofdm + bad_plcp_ofdm;
- norm_fa_cck = fa_cck + bad_plcp_cck;
-
- IWL_DEBUG_CALIB(priv,
- "cck: fa %u badp %u ofdm: fa %u badp %u\n", fa_cck,
- bad_plcp_cck, fa_ofdm, bad_plcp_ofdm);
-
- iwl4965_sens_auto_corr_ofdm(priv, norm_fa_ofdm, rx_enable_time);
- iwl4965_sens_energy_cck(priv, norm_fa_cck, rx_enable_time, &statis);
-
- iwl4965_sensitivity_write(priv);
-}
-
-static inline u8 iwl4965_find_first_chain(u8 mask)
-{
- if (mask & ANT_A)
- return CHAIN_A;
- if (mask & ANT_B)
- return CHAIN_B;
- return CHAIN_C;
-}
-
-/**
- * Run disconnected antenna algorithm to find out which antennas are
- * disconnected.
- */
-static void
-iwl4965_find_disconn_antenna(struct iwl_priv *priv, u32* average_sig,
- struct iwl_chain_noise_data *data)
-{
- u32 active_chains = 0;
- u32 max_average_sig;
- u16 max_average_sig_antenna_i;
- u8 num_tx_chains;
- u8 first_chain;
- u16 i = 0;
-
- average_sig[0] = data->chain_signal_a /
- priv->cfg->base_params->chain_noise_num_beacons;
- average_sig[1] = data->chain_signal_b /
- priv->cfg->base_params->chain_noise_num_beacons;
- average_sig[2] = data->chain_signal_c /
- priv->cfg->base_params->chain_noise_num_beacons;
-
- if (average_sig[0] >= average_sig[1]) {
- max_average_sig = average_sig[0];
- max_average_sig_antenna_i = 0;
- active_chains = (1 << max_average_sig_antenna_i);
- } else {
- max_average_sig = average_sig[1];
- max_average_sig_antenna_i = 1;
- active_chains = (1 << max_average_sig_antenna_i);
- }
-
- if (average_sig[2] >= max_average_sig) {
- max_average_sig = average_sig[2];
- max_average_sig_antenna_i = 2;
- active_chains = (1 << max_average_sig_antenna_i);
- }
-
- IWL_DEBUG_CALIB(priv, "average_sig: a %d b %d c %d\n",
- average_sig[0], average_sig[1], average_sig[2]);
- IWL_DEBUG_CALIB(priv, "max_average_sig = %d, antenna %d\n",
- max_average_sig, max_average_sig_antenna_i);
-
- /* Compare signal strengths for all 3 receivers. */
- for (i = 0; i < NUM_RX_CHAINS; i++) {
- if (i != max_average_sig_antenna_i) {
- s32 rssi_delta = (max_average_sig - average_sig[i]);
-
- /* If signal is very weak, compared with
- * strongest, mark it as disconnected. */
- if (rssi_delta > MAXIMUM_ALLOWED_PATHLOSS)
- data->disconn_array[i] = 1;
- else
- active_chains |= (1 << i);
- IWL_DEBUG_CALIB(priv, "i = %d rssiDelta = %d "
- "disconn_array[i] = %d\n",
- i, rssi_delta, data->disconn_array[i]);
- }
- }
-
- /*
- * The above algorithm sometimes fails when the ucode
- * reports 0 for all chains. It's not clear why that
- * happens to start with, but it is then causing trouble
- * because this can make us enable more chains than the
- * hardware really has.
- *
- * To be safe, simply mask out any chains that we know
- * are not on the device.
- */
- active_chains &= priv->hw_params.valid_rx_ant;
-
- num_tx_chains = 0;
- for (i = 0; i < NUM_RX_CHAINS; i++) {
- /* loops on all the bits of
- * priv->hw_setting.valid_tx_ant */
- u8 ant_msk = (1 << i);
- if (!(priv->hw_params.valid_tx_ant & ant_msk))
- continue;
-
- num_tx_chains++;
- if (data->disconn_array[i] == 0)
- /* there is a Tx antenna connected */
- break;
- if (num_tx_chains == priv->hw_params.tx_chains_num &&
- data->disconn_array[i]) {
- /*
- * If all chains are disconnected
- * connect the first valid tx chain
- */
- first_chain =
- iwl4965_find_first_chain(priv->cfg->valid_tx_ant);
- data->disconn_array[first_chain] = 0;
- active_chains |= BIT(first_chain);
- IWL_DEBUG_CALIB(priv,
- "All Tx chains are disconnected W/A - declare %d as connected\n",
- first_chain);
- break;
- }
- }
-
- if (active_chains != priv->hw_params.valid_rx_ant &&
- active_chains != priv->chain_noise_data.active_chains)
- IWL_DEBUG_CALIB(priv,
- "Detected that not all antennas are connected! "
- "Connected: %#x, valid: %#x.\n",
- active_chains, priv->hw_params.valid_rx_ant);
-
- /* Save for use within RXON, TX, SCAN commands, etc. */
- data->active_chains = active_chains;
- IWL_DEBUG_CALIB(priv, "active_chains (bitwise) = 0x%x\n",
- active_chains);
-}
-
-static void iwl4965_gain_computation(struct iwl_priv *priv,
- u32 *average_noise,
- u16 min_average_noise_antenna_i,
- u32 min_average_noise,
- u8 default_chain)
-{
- int i, ret;
- struct iwl_chain_noise_data *data = &priv->chain_noise_data;
-
- data->delta_gain_code[min_average_noise_antenna_i] = 0;
-
- for (i = default_chain; i < NUM_RX_CHAINS; i++) {
- s32 delta_g = 0;
-
- if (!(data->disconn_array[i]) &&
- (data->delta_gain_code[i] ==
- CHAIN_NOISE_DELTA_GAIN_INIT_VAL)) {
- delta_g = average_noise[i] - min_average_noise;
- data->delta_gain_code[i] = (u8)((delta_g * 10) / 15);
- data->delta_gain_code[i] =
- min(data->delta_gain_code[i],
- (u8) CHAIN_NOISE_MAX_DELTA_GAIN_CODE);
-
- data->delta_gain_code[i] =
- (data->delta_gain_code[i] | (1 << 2));
- } else {
- data->delta_gain_code[i] = 0;
- }
- }
- IWL_DEBUG_CALIB(priv, "delta_gain_codes: a %d b %d c %d\n",
- data->delta_gain_code[0],
- data->delta_gain_code[1],
- data->delta_gain_code[2]);
-
- /* Differential gain gets sent to uCode only once */
- if (!data->radio_write) {
- struct iwl_calib_diff_gain_cmd cmd;
- data->radio_write = 1;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
- cmd.diff_gain_a = data->delta_gain_code[0];
- cmd.diff_gain_b = data->delta_gain_code[1];
- cmd.diff_gain_c = data->delta_gain_code[2];
- ret = iwl_legacy_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
- sizeof(cmd), &cmd);
- if (ret)
- IWL_DEBUG_CALIB(priv, "fail sending cmd "
- "REPLY_PHY_CALIBRATION_CMD\n");
-
- /* TODO we might want recalculate
- * rx_chain in rxon cmd */
-
- /* Mark so we run this algo only once! */
- data->state = IWL_CHAIN_NOISE_CALIBRATED;
- }
-}
-
-
-
-/*
- * Accumulate 16 beacons of signal and noise statistics for each of
- * 3 receivers/antennas/rx-chains, then figure out:
- * 1) Which antennas are connected.
- * 2) Differential rx gain settings to balance the 3 receivers.
- */
-void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp)
-{
- struct iwl_chain_noise_data *data = NULL;
-
- u32 chain_noise_a;
- u32 chain_noise_b;
- u32 chain_noise_c;
- u32 chain_sig_a;
- u32 chain_sig_b;
- u32 chain_sig_c;
- u32 average_sig[NUM_RX_CHAINS] = {INITIALIZATION_VALUE};
- u32 average_noise[NUM_RX_CHAINS] = {INITIALIZATION_VALUE};
- u32 min_average_noise = MIN_AVERAGE_NOISE_MAX_VALUE;
- u16 min_average_noise_antenna_i = INITIALIZATION_VALUE;
- u16 i = 0;
- u16 rxon_chnum = INITIALIZATION_VALUE;
- u16 stat_chnum = INITIALIZATION_VALUE;
- u8 rxon_band24;
- u8 stat_band24;
- unsigned long flags;
- struct statistics_rx_non_phy *rx_info;
-
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (priv->disable_chain_noise_cal)
- return;
-
- data = &(priv->chain_noise_data);
-
- /*
- * Accumulate just the first "chain_noise_num_beacons" after
- * the first association, then we're done forever.
- */
- if (data->state != IWL_CHAIN_NOISE_ACCUMULATE) {
- if (data->state == IWL_CHAIN_NOISE_ALIVE)
- IWL_DEBUG_CALIB(priv, "Wait for noise calib reset\n");
- return;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- rx_info = &(((struct iwl_notif_statistics *)stat_resp)->
- rx.general);
-
- if (rx_info->interference_data_flag != INTERFERENCE_DATA_AVAILABLE) {
- IWL_DEBUG_CALIB(priv, " << Interference data unavailable\n");
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- rxon_band24 = !!(ctx->staging.flags & RXON_FLG_BAND_24G_MSK);
- rxon_chnum = le16_to_cpu(ctx->staging.channel);
-
- stat_band24 = !!(((struct iwl_notif_statistics *)
- stat_resp)->flag &
- STATISTICS_REPLY_FLG_BAND_24G_MSK);
- stat_chnum = le32_to_cpu(((struct iwl_notif_statistics *)
- stat_resp)->flag) >> 16;
-
- /* Make sure we accumulate data for just the associated channel
- * (even if scanning). */
- if ((rxon_chnum != stat_chnum) || (rxon_band24 != stat_band24)) {
- IWL_DEBUG_CALIB(priv, "Stats not from chan=%d, band24=%d\n",
- rxon_chnum, rxon_band24);
- spin_unlock_irqrestore(&priv->lock, flags);
- return;
- }
-
- /*
- * Accumulate beacon statistics values across
- * "chain_noise_num_beacons"
- */
- chain_noise_a = le32_to_cpu(rx_info->beacon_silence_rssi_a) &
- IN_BAND_FILTER;
- chain_noise_b = le32_to_cpu(rx_info->beacon_silence_rssi_b) &
- IN_BAND_FILTER;
- chain_noise_c = le32_to_cpu(rx_info->beacon_silence_rssi_c) &
- IN_BAND_FILTER;
-
- chain_sig_a = le32_to_cpu(rx_info->beacon_rssi_a) & IN_BAND_FILTER;
- chain_sig_b = le32_to_cpu(rx_info->beacon_rssi_b) & IN_BAND_FILTER;
- chain_sig_c = le32_to_cpu(rx_info->beacon_rssi_c) & IN_BAND_FILTER;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- data->beacon_count++;
-
- data->chain_noise_a = (chain_noise_a + data->chain_noise_a);
- data->chain_noise_b = (chain_noise_b + data->chain_noise_b);
- data->chain_noise_c = (chain_noise_c + data->chain_noise_c);
-
- data->chain_signal_a = (chain_sig_a + data->chain_signal_a);
- data->chain_signal_b = (chain_sig_b + data->chain_signal_b);
- data->chain_signal_c = (chain_sig_c + data->chain_signal_c);
-
- IWL_DEBUG_CALIB(priv, "chan=%d, band24=%d, beacon=%d\n",
- rxon_chnum, rxon_band24, data->beacon_count);
- IWL_DEBUG_CALIB(priv, "chain_sig: a %d b %d c %d\n",
- chain_sig_a, chain_sig_b, chain_sig_c);
- IWL_DEBUG_CALIB(priv, "chain_noise: a %d b %d c %d\n",
- chain_noise_a, chain_noise_b, chain_noise_c);
-
- /* If this is the "chain_noise_num_beacons", determine:
- * 1) Disconnected antennas (using signal strengths)
- * 2) Differential gain (using silence noise) to balance receivers */
- if (data->beacon_count !=
- priv->cfg->base_params->chain_noise_num_beacons)
- return;
-
- /* Analyze signal for disconnected antenna */
- iwl4965_find_disconn_antenna(priv, average_sig, data);
-
- /* Analyze noise for rx balance */
- average_noise[0] = data->chain_noise_a /
- priv->cfg->base_params->chain_noise_num_beacons;
- average_noise[1] = data->chain_noise_b /
- priv->cfg->base_params->chain_noise_num_beacons;
- average_noise[2] = data->chain_noise_c /
- priv->cfg->base_params->chain_noise_num_beacons;
-
- for (i = 0; i < NUM_RX_CHAINS; i++) {
- if (!(data->disconn_array[i]) &&
- (average_noise[i] <= min_average_noise)) {
- /* This means that chain i is active and has
- * lower noise values so far: */
- min_average_noise = average_noise[i];
- min_average_noise_antenna_i = i;
- }
- }
-
- IWL_DEBUG_CALIB(priv, "average_noise: a %d b %d c %d\n",
- average_noise[0], average_noise[1],
- average_noise[2]);
-
- IWL_DEBUG_CALIB(priv, "min_average_noise = %d, antenna %d\n",
- min_average_noise, min_average_noise_antenna_i);
-
- iwl4965_gain_computation(priv, average_noise,
- min_average_noise_antenna_i, min_average_noise,
- iwl4965_find_first_chain(priv->cfg->valid_rx_ant));
-
- /* Some power changes may have been made during the calibration.
- * Update and commit the RXON
- */
- if (priv->cfg->ops->lib->update_chain_flags)
- priv->cfg->ops->lib->update_chain_flags(priv);
-
- data->state = IWL_CHAIN_NOISE_DONE;
- iwl_legacy_power_update_mode(priv, false);
-}
-
-void iwl4965_reset_run_time_calib(struct iwl_priv *priv)
-{
- int i;
- memset(&(priv->sensitivity_data), 0,
- sizeof(struct iwl_sensitivity_data));
- memset(&(priv->chain_noise_data), 0,
- sizeof(struct iwl_chain_noise_data));
- for (i = 0; i < NUM_RX_CHAINS; i++)
- priv->chain_noise_data.delta_gain_code[i] =
- CHAIN_NOISE_DELTA_GAIN_INIT_VAL;
-
- /* Ask for statistics now, the uCode will send notification
- * periodically after association */
- iwl_legacy_send_statistics_request(priv, CMD_ASYNC, true);
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-calib.h b/drivers/net/wireless/iwlegacy/iwl-4965-calib.h
deleted file mode 100644
index f46c80e..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-calib.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-#ifndef __iwl_4965_calib_h__
-#define __iwl_4965_calib_h__
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-commands.h"
-
-void iwl4965_chain_noise_calibration(struct iwl_priv *priv, void *stat_resp);
-void iwl4965_sensitivity_calibration(struct iwl_priv *priv, void *resp);
-void iwl4965_init_sensitivity(struct iwl_priv *priv);
-void iwl4965_reset_run_time_calib(struct iwl_priv *priv);
-void iwl4965_calib_free_results(struct iwl_priv *priv);
-
-#endif /* __iwl_4965_calib_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c
deleted file mode 100644
index 1c93665..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.c
+++ /dev/null
@@ -1,774 +0,0 @@
-/******************************************************************************
-*
-* GPL LICENSE SUMMARY
-*
-* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of version 2 of the GNU General Public License as
-* published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it will be useful, but
-* WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-* General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program; if not, write to the Free Software
-* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
-* USA
-*
-* The full GNU General Public License is included in this distribution
-* in the file called LICENSE.GPL.
-*
-* Contact Information:
-* Intel Linux Wireless <ilw@linux.intel.com>
-* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
-*****************************************************************************/
-#include "iwl-4965.h"
-#include "iwl-4965-debugfs.h"
-
-static const char *fmt_value = " %-30s %10u\n";
-static const char *fmt_table = " %-30s %10u %10u %10u %10u\n";
-static const char *fmt_header =
- "%-32s current cumulative delta max\n";
-
-static int iwl4965_statistics_flag(struct iwl_priv *priv, char *buf, int bufsz)
-{
- int p = 0;
- u32 flag;
-
- flag = le32_to_cpu(priv->_4965.statistics.flag);
-
- p += scnprintf(buf + p, bufsz - p, "Statistics Flag(0x%X):\n", flag);
- if (flag & UCODE_STATISTICS_CLEAR_MSK)
- p += scnprintf(buf + p, bufsz - p,
- "\tStatistics have been cleared\n");
- p += scnprintf(buf + p, bufsz - p, "\tOperational Frequency: %s\n",
- (flag & UCODE_STATISTICS_FREQUENCY_MSK)
- ? "2.4 GHz" : "5.2 GHz");
- p += scnprintf(buf + p, bufsz - p, "\tTGj Narrow Band: %s\n",
- (flag & UCODE_STATISTICS_NARROW_BAND_MSK)
- ? "enabled" : "disabled");
-
- return p;
-}
-
-ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = sizeof(struct statistics_rx_phy) * 40 +
- sizeof(struct statistics_rx_non_phy) * 40 +
- sizeof(struct statistics_rx_ht_phy) * 40 + 400;
- ssize_t ret;
- struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
- struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
- struct statistics_rx_non_phy *general, *accum_general;
- struct statistics_rx_non_phy *delta_general, *max_general;
- struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /*
- * the statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- ofdm = &priv->_4965.statistics.rx.ofdm;
- cck = &priv->_4965.statistics.rx.cck;
- general = &priv->_4965.statistics.rx.general;
- ht = &priv->_4965.statistics.rx.ofdm_ht;
- accum_ofdm = &priv->_4965.accum_statistics.rx.ofdm;
- accum_cck = &priv->_4965.accum_statistics.rx.cck;
- accum_general = &priv->_4965.accum_statistics.rx.general;
- accum_ht = &priv->_4965.accum_statistics.rx.ofdm_ht;
- delta_ofdm = &priv->_4965.delta_statistics.rx.ofdm;
- delta_cck = &priv->_4965.delta_statistics.rx.cck;
- delta_general = &priv->_4965.delta_statistics.rx.general;
- delta_ht = &priv->_4965.delta_statistics.rx.ofdm_ht;
- max_ofdm = &priv->_4965.max_delta.rx.ofdm;
- max_cck = &priv->_4965.max_delta.rx.cck;
- max_general = &priv->_4965.max_delta.rx.general;
- max_ht = &priv->_4965.max_delta.rx.ofdm_ht;
-
- pos += iwl4965_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_Rx - OFDM:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "ina_cnt:",
- le32_to_cpu(ofdm->ina_cnt),
- accum_ofdm->ina_cnt,
- delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_cnt:",
- le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
- delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "plcp_err:",
- le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
- delta_ofdm->plcp_err, max_ofdm->plcp_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_err:",
- le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
- delta_ofdm->crc32_err, max_ofdm->crc32_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "overrun_err:",
- le32_to_cpu(ofdm->overrun_err),
- accum_ofdm->overrun_err, delta_ofdm->overrun_err,
- max_ofdm->overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "early_overrun_err:",
- le32_to_cpu(ofdm->early_overrun_err),
- accum_ofdm->early_overrun_err,
- delta_ofdm->early_overrun_err,
- max_ofdm->early_overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_good:",
- le32_to_cpu(ofdm->crc32_good),
- accum_ofdm->crc32_good, delta_ofdm->crc32_good,
- max_ofdm->crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "false_alarm_cnt:",
- le32_to_cpu(ofdm->false_alarm_cnt),
- accum_ofdm->false_alarm_cnt,
- delta_ofdm->false_alarm_cnt,
- max_ofdm->false_alarm_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_sync_err_cnt:",
- le32_to_cpu(ofdm->fina_sync_err_cnt),
- accum_ofdm->fina_sync_err_cnt,
- delta_ofdm->fina_sync_err_cnt,
- max_ofdm->fina_sync_err_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sfd_timeout:",
- le32_to_cpu(ofdm->sfd_timeout),
- accum_ofdm->sfd_timeout, delta_ofdm->sfd_timeout,
- max_ofdm->sfd_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_timeout:",
- le32_to_cpu(ofdm->fina_timeout),
- accum_ofdm->fina_timeout, delta_ofdm->fina_timeout,
- max_ofdm->fina_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "unresponded_rts:",
- le32_to_cpu(ofdm->unresponded_rts),
- accum_ofdm->unresponded_rts,
- delta_ofdm->unresponded_rts,
- max_ofdm->unresponded_rts);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "rxe_frame_lmt_ovrun:",
- le32_to_cpu(ofdm->rxe_frame_limit_overrun),
- accum_ofdm->rxe_frame_limit_overrun,
- delta_ofdm->rxe_frame_limit_overrun,
- max_ofdm->rxe_frame_limit_overrun);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_ack_cnt:",
- le32_to_cpu(ofdm->sent_ack_cnt),
- accum_ofdm->sent_ack_cnt, delta_ofdm->sent_ack_cnt,
- max_ofdm->sent_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_cts_cnt:",
- le32_to_cpu(ofdm->sent_cts_cnt),
- accum_ofdm->sent_cts_cnt, delta_ofdm->sent_cts_cnt,
- max_ofdm->sent_cts_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_ba_rsp_cnt:",
- le32_to_cpu(ofdm->sent_ba_rsp_cnt),
- accum_ofdm->sent_ba_rsp_cnt,
- delta_ofdm->sent_ba_rsp_cnt,
- max_ofdm->sent_ba_rsp_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "dsp_self_kill:",
- le32_to_cpu(ofdm->dsp_self_kill),
- accum_ofdm->dsp_self_kill,
- delta_ofdm->dsp_self_kill,
- max_ofdm->dsp_self_kill);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "mh_format_err:",
- le32_to_cpu(ofdm->mh_format_err),
- accum_ofdm->mh_format_err,
- delta_ofdm->mh_format_err,
- max_ofdm->mh_format_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "re_acq_main_rssi_sum:",
- le32_to_cpu(ofdm->re_acq_main_rssi_sum),
- accum_ofdm->re_acq_main_rssi_sum,
- delta_ofdm->re_acq_main_rssi_sum,
- max_ofdm->re_acq_main_rssi_sum);
-
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_Rx - CCK:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "ina_cnt:",
- le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
- delta_cck->ina_cnt, max_cck->ina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_cnt:",
- le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
- delta_cck->fina_cnt, max_cck->fina_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "plcp_err:",
- le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
- delta_cck->plcp_err, max_cck->plcp_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_err:",
- le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
- delta_cck->crc32_err, max_cck->crc32_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "overrun_err:",
- le32_to_cpu(cck->overrun_err),
- accum_cck->overrun_err, delta_cck->overrun_err,
- max_cck->overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "early_overrun_err:",
- le32_to_cpu(cck->early_overrun_err),
- accum_cck->early_overrun_err,
- delta_cck->early_overrun_err,
- max_cck->early_overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_good:",
- le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
- delta_cck->crc32_good, max_cck->crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "false_alarm_cnt:",
- le32_to_cpu(cck->false_alarm_cnt),
- accum_cck->false_alarm_cnt,
- delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_sync_err_cnt:",
- le32_to_cpu(cck->fina_sync_err_cnt),
- accum_cck->fina_sync_err_cnt,
- delta_cck->fina_sync_err_cnt,
- max_cck->fina_sync_err_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sfd_timeout:",
- le32_to_cpu(cck->sfd_timeout),
- accum_cck->sfd_timeout, delta_cck->sfd_timeout,
- max_cck->sfd_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "fina_timeout:",
- le32_to_cpu(cck->fina_timeout),
- accum_cck->fina_timeout, delta_cck->fina_timeout,
- max_cck->fina_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "unresponded_rts:",
- le32_to_cpu(cck->unresponded_rts),
- accum_cck->unresponded_rts, delta_cck->unresponded_rts,
- max_cck->unresponded_rts);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "rxe_frame_lmt_ovrun:",
- le32_to_cpu(cck->rxe_frame_limit_overrun),
- accum_cck->rxe_frame_limit_overrun,
- delta_cck->rxe_frame_limit_overrun,
- max_cck->rxe_frame_limit_overrun);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_ack_cnt:",
- le32_to_cpu(cck->sent_ack_cnt),
- accum_cck->sent_ack_cnt, delta_cck->sent_ack_cnt,
- max_cck->sent_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_cts_cnt:",
- le32_to_cpu(cck->sent_cts_cnt),
- accum_cck->sent_cts_cnt, delta_cck->sent_cts_cnt,
- max_cck->sent_cts_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sent_ba_rsp_cnt:",
- le32_to_cpu(cck->sent_ba_rsp_cnt),
- accum_cck->sent_ba_rsp_cnt,
- delta_cck->sent_ba_rsp_cnt,
- max_cck->sent_ba_rsp_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "dsp_self_kill:",
- le32_to_cpu(cck->dsp_self_kill),
- accum_cck->dsp_self_kill, delta_cck->dsp_self_kill,
- max_cck->dsp_self_kill);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "mh_format_err:",
- le32_to_cpu(cck->mh_format_err),
- accum_cck->mh_format_err, delta_cck->mh_format_err,
- max_cck->mh_format_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "re_acq_main_rssi_sum:",
- le32_to_cpu(cck->re_acq_main_rssi_sum),
- accum_cck->re_acq_main_rssi_sum,
- delta_cck->re_acq_main_rssi_sum,
- max_cck->re_acq_main_rssi_sum);
-
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_Rx - GENERAL:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "bogus_cts:",
- le32_to_cpu(general->bogus_cts),
- accum_general->bogus_cts, delta_general->bogus_cts,
- max_general->bogus_cts);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "bogus_ack:",
- le32_to_cpu(general->bogus_ack),
- accum_general->bogus_ack, delta_general->bogus_ack,
- max_general->bogus_ack);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "non_bssid_frames:",
- le32_to_cpu(general->non_bssid_frames),
- accum_general->non_bssid_frames,
- delta_general->non_bssid_frames,
- max_general->non_bssid_frames);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "filtered_frames:",
- le32_to_cpu(general->filtered_frames),
- accum_general->filtered_frames,
- delta_general->filtered_frames,
- max_general->filtered_frames);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "non_channel_beacons:",
- le32_to_cpu(general->non_channel_beacons),
- accum_general->non_channel_beacons,
- delta_general->non_channel_beacons,
- max_general->non_channel_beacons);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "channel_beacons:",
- le32_to_cpu(general->channel_beacons),
- accum_general->channel_beacons,
- delta_general->channel_beacons,
- max_general->channel_beacons);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "num_missed_bcon:",
- le32_to_cpu(general->num_missed_bcon),
- accum_general->num_missed_bcon,
- delta_general->num_missed_bcon,
- max_general->num_missed_bcon);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "adc_rx_saturation_time:",
- le32_to_cpu(general->adc_rx_saturation_time),
- accum_general->adc_rx_saturation_time,
- delta_general->adc_rx_saturation_time,
- max_general->adc_rx_saturation_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "ina_detect_search_tm:",
- le32_to_cpu(general->ina_detection_search_time),
- accum_general->ina_detection_search_time,
- delta_general->ina_detection_search_time,
- max_general->ina_detection_search_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_silence_rssi_a:",
- le32_to_cpu(general->beacon_silence_rssi_a),
- accum_general->beacon_silence_rssi_a,
- delta_general->beacon_silence_rssi_a,
- max_general->beacon_silence_rssi_a);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_silence_rssi_b:",
- le32_to_cpu(general->beacon_silence_rssi_b),
- accum_general->beacon_silence_rssi_b,
- delta_general->beacon_silence_rssi_b,
- max_general->beacon_silence_rssi_b);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_silence_rssi_c:",
- le32_to_cpu(general->beacon_silence_rssi_c),
- accum_general->beacon_silence_rssi_c,
- delta_general->beacon_silence_rssi_c,
- max_general->beacon_silence_rssi_c);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "interference_data_flag:",
- le32_to_cpu(general->interference_data_flag),
- accum_general->interference_data_flag,
- delta_general->interference_data_flag,
- max_general->interference_data_flag);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "channel_load:",
- le32_to_cpu(general->channel_load),
- accum_general->channel_load,
- delta_general->channel_load,
- max_general->channel_load);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "dsp_false_alarms:",
- le32_to_cpu(general->dsp_false_alarms),
- accum_general->dsp_false_alarms,
- delta_general->dsp_false_alarms,
- max_general->dsp_false_alarms);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_rssi_a:",
- le32_to_cpu(general->beacon_rssi_a),
- accum_general->beacon_rssi_a,
- delta_general->beacon_rssi_a,
- max_general->beacon_rssi_a);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_rssi_b:",
- le32_to_cpu(general->beacon_rssi_b),
- accum_general->beacon_rssi_b,
- delta_general->beacon_rssi_b,
- max_general->beacon_rssi_b);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_rssi_c:",
- le32_to_cpu(general->beacon_rssi_c),
- accum_general->beacon_rssi_c,
- delta_general->beacon_rssi_c,
- max_general->beacon_rssi_c);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_energy_a:",
- le32_to_cpu(general->beacon_energy_a),
- accum_general->beacon_energy_a,
- delta_general->beacon_energy_a,
- max_general->beacon_energy_a);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_energy_b:",
- le32_to_cpu(general->beacon_energy_b),
- accum_general->beacon_energy_b,
- delta_general->beacon_energy_b,
- max_general->beacon_energy_b);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "beacon_energy_c:",
- le32_to_cpu(general->beacon_energy_c),
- accum_general->beacon_energy_c,
- delta_general->beacon_energy_c,
- max_general->beacon_energy_c);
-
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_Rx - OFDM_HT:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "plcp_err:",
- le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
- delta_ht->plcp_err, max_ht->plcp_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "overrun_err:",
- le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
- delta_ht->overrun_err, max_ht->overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "early_overrun_err:",
- le32_to_cpu(ht->early_overrun_err),
- accum_ht->early_overrun_err,
- delta_ht->early_overrun_err,
- max_ht->early_overrun_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_good:",
- le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
- delta_ht->crc32_good, max_ht->crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "crc32_err:",
- le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
- delta_ht->crc32_err, max_ht->crc32_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "mh_format_err:",
- le32_to_cpu(ht->mh_format_err),
- accum_ht->mh_format_err,
- delta_ht->mh_format_err, max_ht->mh_format_err);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg_crc32_good:",
- le32_to_cpu(ht->agg_crc32_good),
- accum_ht->agg_crc32_good,
- delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg_mpdu_cnt:",
- le32_to_cpu(ht->agg_mpdu_cnt),
- accum_ht->agg_mpdu_cnt,
- delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg_cnt:",
- le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
- delta_ht->agg_cnt, max_ht->agg_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "unsupport_mcs:",
- le32_to_cpu(ht->unsupport_mcs),
- accum_ht->unsupport_mcs,
- delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-ssize_t iwl4965_ucode_tx_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
- ssize_t ret;
- struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /* the statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- tx = &priv->_4965.statistics.tx;
- accum_tx = &priv->_4965.accum_statistics.tx;
- delta_tx = &priv->_4965.delta_statistics.tx;
- max_tx = &priv->_4965.max_delta.tx;
-
- pos += iwl4965_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_Tx:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "preamble:",
- le32_to_cpu(tx->preamble_cnt),
- accum_tx->preamble_cnt,
- delta_tx->preamble_cnt, max_tx->preamble_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "rx_detected_cnt:",
- le32_to_cpu(tx->rx_detected_cnt),
- accum_tx->rx_detected_cnt,
- delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "bt_prio_defer_cnt:",
- le32_to_cpu(tx->bt_prio_defer_cnt),
- accum_tx->bt_prio_defer_cnt,
- delta_tx->bt_prio_defer_cnt,
- max_tx->bt_prio_defer_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "bt_prio_kill_cnt:",
- le32_to_cpu(tx->bt_prio_kill_cnt),
- accum_tx->bt_prio_kill_cnt,
- delta_tx->bt_prio_kill_cnt,
- max_tx->bt_prio_kill_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "few_bytes_cnt:",
- le32_to_cpu(tx->few_bytes_cnt),
- accum_tx->few_bytes_cnt,
- delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "cts_timeout:",
- le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
- delta_tx->cts_timeout, max_tx->cts_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "ack_timeout:",
- le32_to_cpu(tx->ack_timeout),
- accum_tx->ack_timeout,
- delta_tx->ack_timeout, max_tx->ack_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "expected_ack_cnt:",
- le32_to_cpu(tx->expected_ack_cnt),
- accum_tx->expected_ack_cnt,
- delta_tx->expected_ack_cnt,
- max_tx->expected_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "actual_ack_cnt:",
- le32_to_cpu(tx->actual_ack_cnt),
- accum_tx->actual_ack_cnt,
- delta_tx->actual_ack_cnt,
- max_tx->actual_ack_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "dump_msdu_cnt:",
- le32_to_cpu(tx->dump_msdu_cnt),
- accum_tx->dump_msdu_cnt,
- delta_tx->dump_msdu_cnt,
- max_tx->dump_msdu_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "abort_nxt_frame_mismatch:",
- le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
- accum_tx->burst_abort_next_frame_mismatch_cnt,
- delta_tx->burst_abort_next_frame_mismatch_cnt,
- max_tx->burst_abort_next_frame_mismatch_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "abort_missing_nxt_frame:",
- le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
- accum_tx->burst_abort_missing_next_frame_cnt,
- delta_tx->burst_abort_missing_next_frame_cnt,
- max_tx->burst_abort_missing_next_frame_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "cts_timeout_collision:",
- le32_to_cpu(tx->cts_timeout_collision),
- accum_tx->cts_timeout_collision,
- delta_tx->cts_timeout_collision,
- max_tx->cts_timeout_collision);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "ack_ba_timeout_collision:",
- le32_to_cpu(tx->ack_or_ba_timeout_collision),
- accum_tx->ack_or_ba_timeout_collision,
- delta_tx->ack_or_ba_timeout_collision,
- max_tx->ack_or_ba_timeout_collision);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg ba_timeout:",
- le32_to_cpu(tx->agg.ba_timeout),
- accum_tx->agg.ba_timeout,
- delta_tx->agg.ba_timeout,
- max_tx->agg.ba_timeout);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg ba_resched_frames:",
- le32_to_cpu(tx->agg.ba_reschedule_frames),
- accum_tx->agg.ba_reschedule_frames,
- delta_tx->agg.ba_reschedule_frames,
- max_tx->agg.ba_reschedule_frames);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg scd_query_agg_frame:",
- le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
- accum_tx->agg.scd_query_agg_frame_cnt,
- delta_tx->agg.scd_query_agg_frame_cnt,
- max_tx->agg.scd_query_agg_frame_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg scd_query_no_agg:",
- le32_to_cpu(tx->agg.scd_query_no_agg),
- accum_tx->agg.scd_query_no_agg,
- delta_tx->agg.scd_query_no_agg,
- max_tx->agg.scd_query_no_agg);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg scd_query_agg:",
- le32_to_cpu(tx->agg.scd_query_agg),
- accum_tx->agg.scd_query_agg,
- delta_tx->agg.scd_query_agg,
- max_tx->agg.scd_query_agg);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg scd_query_mismatch:",
- le32_to_cpu(tx->agg.scd_query_mismatch),
- accum_tx->agg.scd_query_mismatch,
- delta_tx->agg.scd_query_mismatch,
- max_tx->agg.scd_query_mismatch);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg frame_not_ready:",
- le32_to_cpu(tx->agg.frame_not_ready),
- accum_tx->agg.frame_not_ready,
- delta_tx->agg.frame_not_ready,
- max_tx->agg.frame_not_ready);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg underrun:",
- le32_to_cpu(tx->agg.underrun),
- accum_tx->agg.underrun,
- delta_tx->agg.underrun, max_tx->agg.underrun);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg bt_prio_kill:",
- le32_to_cpu(tx->agg.bt_prio_kill),
- accum_tx->agg.bt_prio_kill,
- delta_tx->agg.bt_prio_kill,
- max_tx->agg.bt_prio_kill);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "agg rx_ba_rsp_cnt:",
- le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
- accum_tx->agg.rx_ba_rsp_cnt,
- delta_tx->agg.rx_ba_rsp_cnt,
- max_tx->agg.rx_ba_rsp_cnt);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-ssize_t
-iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char *buf;
- int bufsz = sizeof(struct statistics_general) * 10 + 300;
- ssize_t ret;
- struct statistics_general_common *general, *accum_general;
- struct statistics_general_common *delta_general, *max_general;
- struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
- struct statistics_div *div, *accum_div, *delta_div, *max_div;
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- /* the statistic information display here is based on
- * the last statistics notification from uCode
- * might not reflect the current uCode activity
- */
- general = &priv->_4965.statistics.general.common;
- dbg = &priv->_4965.statistics.general.common.dbg;
- div = &priv->_4965.statistics.general.common.div;
- accum_general = &priv->_4965.accum_statistics.general.common;
- accum_dbg = &priv->_4965.accum_statistics.general.common.dbg;
- accum_div = &priv->_4965.accum_statistics.general.common.div;
- delta_general = &priv->_4965.delta_statistics.general.common;
- max_general = &priv->_4965.max_delta.general.common;
- delta_dbg = &priv->_4965.delta_statistics.general.common.dbg;
- max_dbg = &priv->_4965.max_delta.general.common.dbg;
- delta_div = &priv->_4965.delta_statistics.general.common.div;
- max_div = &priv->_4965.max_delta.general.common.div;
-
- pos += iwl4965_statistics_flag(priv, buf, bufsz);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_header, "Statistics_General:");
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_value, "temperature:",
- le32_to_cpu(general->temperature));
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_value, "ttl_timestamp:",
- le32_to_cpu(general->ttl_timestamp));
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "burst_check:",
- le32_to_cpu(dbg->burst_check),
- accum_dbg->burst_check,
- delta_dbg->burst_check, max_dbg->burst_check);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "burst_count:",
- le32_to_cpu(dbg->burst_count),
- accum_dbg->burst_count,
- delta_dbg->burst_count, max_dbg->burst_count);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "wait_for_silence_timeout_count:",
- le32_to_cpu(dbg->wait_for_silence_timeout_cnt),
- accum_dbg->wait_for_silence_timeout_cnt,
- delta_dbg->wait_for_silence_timeout_cnt,
- max_dbg->wait_for_silence_timeout_cnt);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "sleep_time:",
- le32_to_cpu(general->sleep_time),
- accum_general->sleep_time,
- delta_general->sleep_time, max_general->sleep_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "slots_out:",
- le32_to_cpu(general->slots_out),
- accum_general->slots_out,
- delta_general->slots_out, max_general->slots_out);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "slots_idle:",
- le32_to_cpu(general->slots_idle),
- accum_general->slots_idle,
- delta_general->slots_idle, max_general->slots_idle);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "tx_on_a:",
- le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
- delta_div->tx_on_a, max_div->tx_on_a);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "tx_on_b:",
- le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
- delta_div->tx_on_b, max_div->tx_on_b);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "exec_time:",
- le32_to_cpu(div->exec_time), accum_div->exec_time,
- delta_div->exec_time, max_div->exec_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "probe_time:",
- le32_to_cpu(div->probe_time), accum_div->probe_time,
- delta_div->probe_time, max_div->probe_time);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "rx_enable_counter:",
- le32_to_cpu(general->rx_enable_counter),
- accum_general->rx_enable_counter,
- delta_general->rx_enable_counter,
- max_general->rx_enable_counter);
- pos += scnprintf(buf + pos, bufsz - pos,
- fmt_table, "num_of_sos_states:",
- le32_to_cpu(general->num_of_sos_states),
- accum_general->num_of_sos_states,
- delta_general->num_of_sos_states,
- max_general->num_of_sos_states);
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h b/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h
deleted file mode 100644
index 6c8e353..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-debugfs.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-debug.h"
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-ssize_t iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
-ssize_t iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
-ssize_t iwl4965_ucode_general_stats_read(struct file *file,
- char __user *user_buf, size_t count, loff_t *ppos);
-#else
-static ssize_t
-iwl4965_ucode_rx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- return 0;
-}
-static ssize_t
-iwl4965_ucode_tx_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- return 0;
-}
-static ssize_t
-iwl4965_ucode_general_stats_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- return 0;
-}
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c b/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c
deleted file mode 100644
index cb9baab..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-eeprom.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <net/mac80211.h>
-
-#include "iwl-commands.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-debug.h"
-#include "iwl-4965.h"
-#include "iwl-io.h"
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
-******************************************************************************/
-
-/*
- * The device's EEPROM semaphore prevents conflicts between driver and uCode
- * when accessing the EEPROM; each access is a series of pulses to/from the
- * EEPROM chip, not a single event, so even reads could conflict if they
- * weren't arbitrated by the semaphore.
- */
-int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv)
-{
- u16 count;
- int ret;
-
- for (count = 0; count < EEPROM_SEM_RETRY_LIMIT; count++) {
- /* Request semaphore */
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
-
- /* See if we got it */
- ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM,
- EEPROM_SEM_TIMEOUT);
- if (ret >= 0) {
- IWL_DEBUG_IO(priv,
- "Acquired semaphore after %d tries.\n",
- count+1);
- return ret;
- }
- }
-
- return ret;
-}
-
-void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv)
-{
- iwl_legacy_clear_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_EEPROM_OWN_SEM);
-
-}
-
-int iwl4965_eeprom_check_version(struct iwl_priv *priv)
-{
- u16 eeprom_ver;
- u16 calib_ver;
-
- eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION);
- calib_ver = iwl_legacy_eeprom_query16(priv,
- EEPROM_4965_CALIB_VERSION_OFFSET);
-
- if (eeprom_ver < priv->cfg->eeprom_ver ||
- calib_ver < priv->cfg->eeprom_calib_ver)
- goto err;
-
- IWL_INFO(priv, "device EEPROM VER=0x%x, CALIB=0x%x\n",
- eeprom_ver, calib_ver);
-
- return 0;
-err:
- IWL_ERR(priv, "Unsupported (too old) EEPROM VER=0x%x < 0x%x "
- "CALIB=0x%x < 0x%x\n",
- eeprom_ver, priv->cfg->eeprom_ver,
- calib_ver, priv->cfg->eeprom_calib_ver);
- return -EINVAL;
-
-}
-
-void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac)
-{
- const u8 *addr = iwl_legacy_eeprom_query_addr(priv,
- EEPROM_MAC_ADDRESS);
- memcpy(mac, addr, ETH_ALEN);
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-hw.h b/drivers/net/wireless/iwlegacy/iwl-4965-hw.h
deleted file mode 100644
index fc6fa28..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-hw.h
+++ /dev/null
@@ -1,811 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-/*
- * Please use this file (iwl-4965-hw.h) only for hardware-related definitions.
- * Use iwl-commands.h for uCode API definitions.
- * Use iwl-dev.h for driver implementation definitions.
- */
-
-#ifndef __iwl_4965_hw_h__
-#define __iwl_4965_hw_h__
-
-#include "iwl-fh.h"
-
-/* EEPROM */
-#define IWL4965_EEPROM_IMG_SIZE 1024
-
-/*
- * uCode queue management definitions ...
- * The first queue used for block-ack aggregation is #7 (4965 only).
- * All block-ack aggregation queues should map to Tx DMA/FIFO channel 7.
- */
-#define IWL49_FIRST_AMPDU_QUEUE 7
-
-/* Sizes and addresses for instruction and data memory (SRAM) in
- * 4965's embedded processor. Driver access is via HBUS_TARG_MEM_* regs. */
-#define IWL49_RTC_INST_LOWER_BOUND (0x000000)
-#define IWL49_RTC_INST_UPPER_BOUND (0x018000)
-
-#define IWL49_RTC_DATA_LOWER_BOUND (0x800000)
-#define IWL49_RTC_DATA_UPPER_BOUND (0x80A000)
-
-#define IWL49_RTC_INST_SIZE (IWL49_RTC_INST_UPPER_BOUND - \
- IWL49_RTC_INST_LOWER_BOUND)
-#define IWL49_RTC_DATA_SIZE (IWL49_RTC_DATA_UPPER_BOUND - \
- IWL49_RTC_DATA_LOWER_BOUND)
-
-#define IWL49_MAX_INST_SIZE IWL49_RTC_INST_SIZE
-#define IWL49_MAX_DATA_SIZE IWL49_RTC_DATA_SIZE
-
-/* Size of uCode instruction memory in bootstrap state machine */
-#define IWL49_MAX_BSM_SIZE BSM_SRAM_SIZE
-
-static inline int iwl4965_hw_valid_rtc_data_addr(u32 addr)
-{
- return (addr >= IWL49_RTC_DATA_LOWER_BOUND) &&
- (addr < IWL49_RTC_DATA_UPPER_BOUND);
-}
-
-/********************* START TEMPERATURE *************************************/
-
-/**
- * 4965 temperature calculation.
- *
- * The driver must calculate the device temperature before calculating
- * a txpower setting (amplifier gain is temperature dependent). The
- * calculation uses 4 measurements, 3 of which (R1, R2, R3) are calibration
- * values used for the life of the driver, and one of which (R4) is the
- * real-time temperature indicator.
- *
- * uCode provides all 4 values to the driver via the "initialize alive"
- * notification (see struct iwl4965_init_alive_resp). After the runtime uCode
- * image loads, uCode updates the R4 value via statistics notifications
- * (see STATISTICS_NOTIFICATION), which occur after each received beacon
- * when associated, or can be requested via REPLY_STATISTICS_CMD.
- *
- * NOTE: uCode provides the R4 value as a 23-bit signed value. Driver
- * must sign-extend to 32 bits before applying formula below.
- *
- * Formula:
- *
- * degrees Kelvin = ((97 * 259 * (R4 - R2) / (R3 - R1)) / 100) + 8
- *
- * NOTE: The basic formula is 259 * (R4-R2) / (R3-R1). The 97/100 is
- * an additional correction, which should be centered around 0 degrees
- * Celsius (273 degrees Kelvin). The 8 (3 percent of 273) compensates for
- * centering the 97/100 correction around 0 degrees K.
- *
- * Add 273 to Kelvin value to find degrees Celsius, for comparing current
- * temperature with factory-measured temperatures when calculating txpower
- * settings.
- */
-#define TEMPERATURE_CALIB_KELVIN_OFFSET 8
-#define TEMPERATURE_CALIB_A_VAL 259
-
-/* Limit range of calculated temperature to be between these Kelvin values */
-#define IWL_TX_POWER_TEMPERATURE_MIN (263)
-#define IWL_TX_POWER_TEMPERATURE_MAX (410)
-
-#define IWL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(t) \
- (((t) < IWL_TX_POWER_TEMPERATURE_MIN) || \
- ((t) > IWL_TX_POWER_TEMPERATURE_MAX))
-
-/********************* END TEMPERATURE ***************************************/
-
-/********************* START TXPOWER *****************************************/
-
-/**
- * 4965 txpower calculations rely on information from three sources:
- *
- * 1) EEPROM
- * 2) "initialize" alive notification
- * 3) statistics notifications
- *
- * EEPROM data consists of:
- *
- * 1) Regulatory information (max txpower and channel usage flags) is provided
- * separately for each channel that can possibly supported by 4965.
- * 40 MHz wide (.11n HT40) channels are listed separately from 20 MHz
- * (legacy) channels.
- *
- * See struct iwl4965_eeprom_channel for format, and struct iwl4965_eeprom
- * for locations in EEPROM.
- *
- * 2) Factory txpower calibration information is provided separately for
- * sub-bands of contiguous channels. 2.4GHz has just one sub-band,
- * but 5 GHz has several sub-bands.
- *
- * In addition, per-band (2.4 and 5 Ghz) saturation txpowers are provided.
- *
- * See struct iwl4965_eeprom_calib_info (and the tree of structures
- * contained within it) for format, and struct iwl4965_eeprom for
- * locations in EEPROM.
- *
- * "Initialization alive" notification (see struct iwl4965_init_alive_resp)
- * consists of:
- *
- * 1) Temperature calculation parameters.
- *
- * 2) Power supply voltage measurement.
- *
- * 3) Tx gain compensation to balance 2 transmitters for MIMO use.
- *
- * Statistics notifications deliver:
- *
- * 1) Current values for temperature param R4.
- */
-
-/**
- * To calculate a txpower setting for a given desired target txpower, channel,
- * modulation bit rate, and transmitter chain (4965 has 2 transmitters to
- * support MIMO and transmit diversity), driver must do the following:
- *
- * 1) Compare desired txpower vs. (EEPROM) regulatory limit for this channel.
- * Do not exceed regulatory limit; reduce target txpower if necessary.
- *
- * If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
- * 2 transmitters will be used simultaneously; driver must reduce the
- * regulatory limit by 3 dB (half-power) for each transmitter, so the
- * combined total output of the 2 transmitters is within regulatory limits.
- *
- *
- * 2) Compare target txpower vs. (EEPROM) saturation txpower *reduced by
- * backoff for this bit rate*. Do not exceed (saturation - backoff[rate]);
- * reduce target txpower if necessary.
- *
- * Backoff values below are in 1/2 dB units (equivalent to steps in
- * txpower gain tables):
- *
- * OFDM 6 - 36 MBit: 10 steps (5 dB)
- * OFDM 48 MBit: 15 steps (7.5 dB)
- * OFDM 54 MBit: 17 steps (8.5 dB)
- * OFDM 60 MBit: 20 steps (10 dB)
- * CCK all rates: 10 steps (5 dB)
- *
- * Backoff values apply to saturation txpower on a per-transmitter basis;
- * when using MIMO (2 transmitters), each transmitter uses the same
- * saturation level provided in EEPROM, and the same backoff values;
- * no reduction (such as with regulatory txpower limits) is required.
- *
- * Saturation and Backoff values apply equally to 20 Mhz (legacy) channel
- * widths and 40 Mhz (.11n HT40) channel widths; there is no separate
- * factory measurement for ht40 channels.
- *
- * The result of this step is the final target txpower. The rest of
- * the steps figure out the proper settings for the device to achieve
- * that target txpower.
- *
- *
- * 3) Determine (EEPROM) calibration sub band for the target channel, by
- * comparing against first and last channels in each sub band
- * (see struct iwl4965_eeprom_calib_subband_info).
- *
- *
- * 4) Linearly interpolate (EEPROM) factory calibration measurement sets,
- * referencing the 2 factory-measured (sample) channels within the sub band.
- *
- * Interpolation is based on difference between target channel's frequency
- * and the sample channels' frequencies. Since channel numbers are based
- * on frequency (5 MHz between each channel number), this is equivalent
- * to interpolating based on channel number differences.
- *
- * Note that the sample channels may or may not be the channels at the
- * edges of the sub band. The target channel may be "outside" of the
- * span of the sampled channels.
- *
- * Driver may choose the pair (for 2 Tx chains) of measurements (see
- * struct iwl4965_eeprom_calib_ch_info) for which the actual measured
- * txpower comes closest to the desired txpower. Usually, though,
- * the middle set of measurements is closest to the regulatory limits,
- * and is therefore a good choice for all txpower calculations (this
- * assumes that high accuracy is needed for maximizing legal txpower,
- * while lower txpower configurations do not need as much accuracy).
- *
- * Driver should interpolate both members of the chosen measurement pair,
- * i.e. for both Tx chains (radio transmitters), unless the driver knows
- * that only one of the chains will be used (e.g. only one tx antenna
- * connected, but this should be unusual). The rate scaling algorithm
- * switches antennas to find best performance, so both Tx chains will
- * be used (although only one at a time) even for non-MIMO transmissions.
- *
- * Driver should interpolate factory values for temperature, gain table
- * index, and actual power. The power amplifier detector values are
- * not used by the driver.
- *
- * Sanity check: If the target channel happens to be one of the sample
- * channels, the results should agree with the sample channel's
- * measurements!
- *
- *
- * 5) Find difference between desired txpower and (interpolated)
- * factory-measured txpower. Using (interpolated) factory gain table index
- * (shown elsewhere) as a starting point, adjust this index lower to
- * increase txpower, or higher to decrease txpower, until the target
- * txpower is reached. Each step in the gain table is 1/2 dB.
- *
- * For example, if factory measured txpower is 16 dBm, and target txpower
- * is 13 dBm, add 6 steps to the factory gain index to reduce txpower
- * by 3 dB.
- *
- *
- * 6) Find difference between current device temperature and (interpolated)
- * factory-measured temperature for sub-band. Factory values are in
- * degrees Celsius. To calculate current temperature, see comments for
- * "4965 temperature calculation".
- *
- * If current temperature is higher than factory temperature, driver must
- * increase gain (lower gain table index), and vice verse.
- *
- * Temperature affects gain differently for different channels:
- *
- * 2.4 GHz all channels: 3.5 degrees per half-dB step
- * 5 GHz channels 34-43: 4.5 degrees per half-dB step
- * 5 GHz channels >= 44: 4.0 degrees per half-dB step
- *
- * NOTE: Temperature can increase rapidly when transmitting, especially
- * with heavy traffic at high txpowers. Driver should update
- * temperature calculations often under these conditions to
- * maintain strong txpower in the face of rising temperature.
- *
- *
- * 7) Find difference between current power supply voltage indicator
- * (from "initialize alive") and factory-measured power supply voltage
- * indicator (EEPROM).
- *
- * If the current voltage is higher (indicator is lower) than factory
- * voltage, gain should be reduced (gain table index increased) by:
- *
- * (eeprom - current) / 7
- *
- * If the current voltage is lower (indicator is higher) than factory
- * voltage, gain should be increased (gain table index decreased) by:
- *
- * 2 * (current - eeprom) / 7
- *
- * If number of index steps in either direction turns out to be > 2,
- * something is wrong ... just use 0.
- *
- * NOTE: Voltage compensation is independent of band/channel.
- *
- * NOTE: "Initialize" uCode measures current voltage, which is assumed
- * to be constant after this initial measurement. Voltage
- * compensation for txpower (number of steps in gain table)
- * may be calculated once and used until the next uCode bootload.
- *
- *
- * 8) If setting up txpowers for MIMO rates (rate indexes 8-15, 24-31),
- * adjust txpower for each transmitter chain, so txpower is balanced
- * between the two chains. There are 5 pairs of tx_atten[group][chain]
- * values in "initialize alive", one pair for each of 5 channel ranges:
- *
- * Group 0: 5 GHz channel 34-43
- * Group 1: 5 GHz channel 44-70
- * Group 2: 5 GHz channel 71-124
- * Group 3: 5 GHz channel 125-200
- * Group 4: 2.4 GHz all channels
- *
- * Add the tx_atten[group][chain] value to the index for the target chain.
- * The values are signed, but are in pairs of 0 and a non-negative number,
- * so as to reduce gain (if necessary) of the "hotter" channel. This
- * avoids any need to double-check for regulatory compliance after
- * this step.
- *
- *
- * 9) If setting up for a CCK rate, lower the gain by adding a CCK compensation
- * value to the index:
- *
- * Hardware rev B: 9 steps (4.5 dB)
- * Hardware rev C: 5 steps (2.5 dB)
- *
- * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
- * bits [3:2], 1 = B, 2 = C.
- *
- * NOTE: This compensation is in addition to any saturation backoff that
- * might have been applied in an earlier step.
- *
- *
- * 10) Select the gain table, based on band (2.4 vs 5 GHz).
- *
- * Limit the adjusted index to stay within the table!
- *
- *
- * 11) Read gain table entries for DSP and radio gain, place into appropriate
- * location(s) in command (struct iwl4965_txpowertable_cmd).
- */
-
-/**
- * When MIMO is used (2 transmitters operating simultaneously), driver should
- * limit each transmitter to deliver a max of 3 dB below the regulatory limit
- * for the device. That is, use half power for each transmitter, so total
- * txpower is within regulatory limits.
- *
- * The value "6" represents number of steps in gain table to reduce power 3 dB.
- * Each step is 1/2 dB.
- */
-#define IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION (6)
-
-/**
- * CCK gain compensation.
- *
- * When calculating txpowers for CCK, after making sure that the target power
- * is within regulatory and saturation limits, driver must additionally
- * back off gain by adding these values to the gain table index.
- *
- * Hardware rev for 4965 can be determined by reading CSR_HW_REV_WA_REG,
- * bits [3:2], 1 = B, 2 = C.
- */
-#define IWL_TX_POWER_CCK_COMPENSATION_B_STEP (9)
-#define IWL_TX_POWER_CCK_COMPENSATION_C_STEP (5)
-
-/*
- * 4965 power supply voltage compensation for txpower
- */
-#define TX_POWER_IWL_VOLTAGE_CODES_PER_03V (7)
-
-/**
- * Gain tables.
- *
- * The following tables contain pair of values for setting txpower, i.e.
- * gain settings for the output of the device's digital signal processor (DSP),
- * and for the analog gain structure of the transmitter.
- *
- * Each entry in the gain tables represents a step of 1/2 dB. Note that these
- * are *relative* steps, not indications of absolute output power. Output
- * power varies with temperature, voltage, and channel frequency, and also
- * requires consideration of average power (to satisfy regulatory constraints),
- * and peak power (to avoid distortion of the output signal).
- *
- * Each entry contains two values:
- * 1) DSP gain (or sometimes called DSP attenuation). This is a fine-grained
- * linear value that multiplies the output of the digital signal processor,
- * before being sent to the analog radio.
- * 2) Radio gain. This sets the analog gain of the radio Tx path.
- * It is a coarser setting, and behaves in a logarithmic (dB) fashion.
- *
- * EEPROM contains factory calibration data for txpower. This maps actual
- * measured txpower levels to gain settings in the "well known" tables
- * below ("well-known" means here that both factory calibration *and* the
- * driver work with the same table).
- *
- * There are separate tables for 2.4 GHz and 5 GHz bands. The 5 GHz table
- * has an extension (into negative indexes), in case the driver needs to
- * boost power setting for high device temperatures (higher than would be
- * present during factory calibration). A 5 Ghz EEPROM index of "40"
- * corresponds to the 49th entry in the table used by the driver.
- */
-#define MIN_TX_GAIN_INDEX (0) /* highest gain, lowest idx, 2.4 */
-#define MIN_TX_GAIN_INDEX_52GHZ_EXT (-9) /* highest gain, lowest idx, 5 */
-
-/**
- * 2.4 GHz gain table
- *
- * Index Dsp gain Radio gain
- * 0 110 0x3f (highest gain)
- * 1 104 0x3f
- * 2 98 0x3f
- * 3 110 0x3e
- * 4 104 0x3e
- * 5 98 0x3e
- * 6 110 0x3d
- * 7 104 0x3d
- * 8 98 0x3d
- * 9 110 0x3c
- * 10 104 0x3c
- * 11 98 0x3c
- * 12 110 0x3b
- * 13 104 0x3b
- * 14 98 0x3b
- * 15 110 0x3a
- * 16 104 0x3a
- * 17 98 0x3a
- * 18 110 0x39
- * 19 104 0x39
- * 20 98 0x39
- * 21 110 0x38
- * 22 104 0x38
- * 23 98 0x38
- * 24 110 0x37
- * 25 104 0x37
- * 26 98 0x37
- * 27 110 0x36
- * 28 104 0x36
- * 29 98 0x36
- * 30 110 0x35
- * 31 104 0x35
- * 32 98 0x35
- * 33 110 0x34
- * 34 104 0x34
- * 35 98 0x34
- * 36 110 0x33
- * 37 104 0x33
- * 38 98 0x33
- * 39 110 0x32
- * 40 104 0x32
- * 41 98 0x32
- * 42 110 0x31
- * 43 104 0x31
- * 44 98 0x31
- * 45 110 0x30
- * 46 104 0x30
- * 47 98 0x30
- * 48 110 0x6
- * 49 104 0x6
- * 50 98 0x6
- * 51 110 0x5
- * 52 104 0x5
- * 53 98 0x5
- * 54 110 0x4
- * 55 104 0x4
- * 56 98 0x4
- * 57 110 0x3
- * 58 104 0x3
- * 59 98 0x3
- * 60 110 0x2
- * 61 104 0x2
- * 62 98 0x2
- * 63 110 0x1
- * 64 104 0x1
- * 65 98 0x1
- * 66 110 0x0
- * 67 104 0x0
- * 68 98 0x0
- * 69 97 0
- * 70 96 0
- * 71 95 0
- * 72 94 0
- * 73 93 0
- * 74 92 0
- * 75 91 0
- * 76 90 0
- * 77 89 0
- * 78 88 0
- * 79 87 0
- * 80 86 0
- * 81 85 0
- * 82 84 0
- * 83 83 0
- * 84 82 0
- * 85 81 0
- * 86 80 0
- * 87 79 0
- * 88 78 0
- * 89 77 0
- * 90 76 0
- * 91 75 0
- * 92 74 0
- * 93 73 0
- * 94 72 0
- * 95 71 0
- * 96 70 0
- * 97 69 0
- * 98 68 0
- */
-
-/**
- * 5 GHz gain table
- *
- * Index Dsp gain Radio gain
- * -9 123 0x3F (highest gain)
- * -8 117 0x3F
- * -7 110 0x3F
- * -6 104 0x3F
- * -5 98 0x3F
- * -4 110 0x3E
- * -3 104 0x3E
- * -2 98 0x3E
- * -1 110 0x3D
- * 0 104 0x3D
- * 1 98 0x3D
- * 2 110 0x3C
- * 3 104 0x3C
- * 4 98 0x3C
- * 5 110 0x3B
- * 6 104 0x3B
- * 7 98 0x3B
- * 8 110 0x3A
- * 9 104 0x3A
- * 10 98 0x3A
- * 11 110 0x39
- * 12 104 0x39
- * 13 98 0x39
- * 14 110 0x38
- * 15 104 0x38
- * 16 98 0x38
- * 17 110 0x37
- * 18 104 0x37
- * 19 98 0x37
- * 20 110 0x36
- * 21 104 0x36
- * 22 98 0x36
- * 23 110 0x35
- * 24 104 0x35
- * 25 98 0x35
- * 26 110 0x34
- * 27 104 0x34
- * 28 98 0x34
- * 29 110 0x33
- * 30 104 0x33
- * 31 98 0x33
- * 32 110 0x32
- * 33 104 0x32
- * 34 98 0x32
- * 35 110 0x31
- * 36 104 0x31
- * 37 98 0x31
- * 38 110 0x30
- * 39 104 0x30
- * 40 98 0x30
- * 41 110 0x25
- * 42 104 0x25
- * 43 98 0x25
- * 44 110 0x24
- * 45 104 0x24
- * 46 98 0x24
- * 47 110 0x23
- * 48 104 0x23
- * 49 98 0x23
- * 50 110 0x22
- * 51 104 0x18
- * 52 98 0x18
- * 53 110 0x17
- * 54 104 0x17
- * 55 98 0x17
- * 56 110 0x16
- * 57 104 0x16
- * 58 98 0x16
- * 59 110 0x15
- * 60 104 0x15
- * 61 98 0x15
- * 62 110 0x14
- * 63 104 0x14
- * 64 98 0x14
- * 65 110 0x13
- * 66 104 0x13
- * 67 98 0x13
- * 68 110 0x12
- * 69 104 0x08
- * 70 98 0x08
- * 71 110 0x07
- * 72 104 0x07
- * 73 98 0x07
- * 74 110 0x06
- * 75 104 0x06
- * 76 98 0x06
- * 77 110 0x05
- * 78 104 0x05
- * 79 98 0x05
- * 80 110 0x04
- * 81 104 0x04
- * 82 98 0x04
- * 83 110 0x03
- * 84 104 0x03
- * 85 98 0x03
- * 86 110 0x02
- * 87 104 0x02
- * 88 98 0x02
- * 89 110 0x01
- * 90 104 0x01
- * 91 98 0x01
- * 92 110 0x00
- * 93 104 0x00
- * 94 98 0x00
- * 95 93 0x00
- * 96 88 0x00
- * 97 83 0x00
- * 98 78 0x00
- */
-
-
-/**
- * Sanity checks and default values for EEPROM regulatory levels.
- * If EEPROM values fall outside MIN/MAX range, use default values.
- *
- * Regulatory limits refer to the maximum average txpower allowed by
- * regulatory agencies in the geographies in which the device is meant
- * to be operated. These limits are SKU-specific (i.e. geography-specific),
- * and channel-specific; each channel has an individual regulatory limit
- * listed in the EEPROM.
- *
- * Units are in half-dBm (i.e. "34" means 17 dBm).
- */
-#define IWL_TX_POWER_DEFAULT_REGULATORY_24 (34)
-#define IWL_TX_POWER_DEFAULT_REGULATORY_52 (34)
-#define IWL_TX_POWER_REGULATORY_MIN (0)
-#define IWL_TX_POWER_REGULATORY_MAX (34)
-
-/**
- * Sanity checks and default values for EEPROM saturation levels.
- * If EEPROM values fall outside MIN/MAX range, use default values.
- *
- * Saturation is the highest level that the output power amplifier can produce
- * without significant clipping distortion. This is a "peak" power level.
- * Different types of modulation (i.e. various "rates", and OFDM vs. CCK)
- * require differing amounts of backoff, relative to their average power output,
- * in order to avoid clipping distortion.
- *
- * Driver must make sure that it is violating neither the saturation limit,
- * nor the regulatory limit, when calculating Tx power settings for various
- * rates.
- *
- * Units are in half-dBm (i.e. "38" means 19 dBm).
- */
-#define IWL_TX_POWER_DEFAULT_SATURATION_24 (38)
-#define IWL_TX_POWER_DEFAULT_SATURATION_52 (38)
-#define IWL_TX_POWER_SATURATION_MIN (20)
-#define IWL_TX_POWER_SATURATION_MAX (50)
-
-/**
- * Channel groups used for Tx Attenuation calibration (MIMO tx channel balance)
- * and thermal Txpower calibration.
- *
- * When calculating txpower, driver must compensate for current device
- * temperature; higher temperature requires higher gain. Driver must calculate
- * current temperature (see "4965 temperature calculation"), then compare vs.
- * factory calibration temperature in EEPROM; if current temperature is higher
- * than factory temperature, driver must *increase* gain by proportions shown
- * in table below. If current temperature is lower than factory, driver must
- * *decrease* gain.
- *
- * Different frequency ranges require different compensation, as shown below.
- */
-/* Group 0, 5.2 GHz ch 34-43: 4.5 degrees per 1/2 dB. */
-#define CALIB_IWL_TX_ATTEN_GR1_FCH 34
-#define CALIB_IWL_TX_ATTEN_GR1_LCH 43
-
-/* Group 1, 5.3 GHz ch 44-70: 4.0 degrees per 1/2 dB. */
-#define CALIB_IWL_TX_ATTEN_GR2_FCH 44
-#define CALIB_IWL_TX_ATTEN_GR2_LCH 70
-
-/* Group 2, 5.5 GHz ch 71-124: 4.0 degrees per 1/2 dB. */
-#define CALIB_IWL_TX_ATTEN_GR3_FCH 71
-#define CALIB_IWL_TX_ATTEN_GR3_LCH 124
-
-/* Group 3, 5.7 GHz ch 125-200: 4.0 degrees per 1/2 dB. */
-#define CALIB_IWL_TX_ATTEN_GR4_FCH 125
-#define CALIB_IWL_TX_ATTEN_GR4_LCH 200
-
-/* Group 4, 2.4 GHz all channels: 3.5 degrees per 1/2 dB. */
-#define CALIB_IWL_TX_ATTEN_GR5_FCH 1
-#define CALIB_IWL_TX_ATTEN_GR5_LCH 20
-
-enum {
- CALIB_CH_GROUP_1 = 0,
- CALIB_CH_GROUP_2 = 1,
- CALIB_CH_GROUP_3 = 2,
- CALIB_CH_GROUP_4 = 3,
- CALIB_CH_GROUP_5 = 4,
- CALIB_CH_GROUP_MAX
-};
-
-/********************* END TXPOWER *****************************************/
-
-
-/**
- * Tx/Rx Queues
- *
- * Most communication between driver and 4965 is via queues of data buffers.
- * For example, all commands that the driver issues to device's embedded
- * controller (uCode) are via the command queue (one of the Tx queues). All
- * uCode command responses/replies/notifications, including Rx frames, are
- * conveyed from uCode to driver via the Rx queue.
- *
- * Most support for these queues, including handshake support, resides in
- * structures in host DRAM, shared between the driver and the device. When
- * allocating this memory, the driver must make sure that data written by
- * the host CPU updates DRAM immediately (and does not get "stuck" in CPU's
- * cache memory), so DRAM and cache are consistent, and the device can
- * immediately see changes made by the driver.
- *
- * 4965 supports up to 16 DRAM-based Tx queues, and services these queues via
- * up to 7 DMA channels (FIFOs). Each Tx queue is supported by a circular array
- * in DRAM containing 256 Transmit Frame Descriptors (TFDs).
- */
-#define IWL49_NUM_FIFOS 7
-#define IWL49_CMD_FIFO_NUM 4
-#define IWL49_NUM_QUEUES 16
-#define IWL49_NUM_AMPDU_QUEUES 8
-
-
-/**
- * struct iwl4965_schedq_bc_tbl
- *
- * Byte Count table
- *
- * Each Tx queue uses a byte-count table containing 320 entries:
- * one 16-bit entry for each of 256 TFDs, plus an additional 64 entries that
- * duplicate the first 64 entries (to avoid wrap-around within a Tx window;
- * max Tx window is 64 TFDs).
- *
- * When driver sets up a new TFD, it must also enter the total byte count
- * of the frame to be transmitted into the corresponding entry in the byte
- * count table for the chosen Tx queue. If the TFD index is 0-63, the driver
- * must duplicate the byte count entry in corresponding index 256-319.
- *
- * padding puts each byte count table on a 1024-byte boundary;
- * 4965 assumes tables are separated by 1024 bytes.
- */
-struct iwl4965_scd_bc_tbl {
- __le16 tfd_offset[TFD_QUEUE_BC_SIZE];
- u8 pad[1024 - (TFD_QUEUE_BC_SIZE) * sizeof(__le16)];
-} __packed;
-
-
-#define IWL4965_RTC_INST_LOWER_BOUND (0x000000)
-
-/* RSSI to dBm */
-#define IWL4965_RSSI_OFFSET 44
-
-/* PCI registers */
-#define PCI_CFG_RETRY_TIMEOUT 0x041
-
-/* PCI register values */
-#define PCI_CFG_LINK_CTRL_VAL_L0S_EN 0x01
-#define PCI_CFG_LINK_CTRL_VAL_L1_EN 0x02
-
-#define IWL4965_DEFAULT_TX_RETRY 15
-
-/* EEPROM */
-#define IWL4965_FIRST_AMPDU_QUEUE 10
-
-
-#endif /* !__iwl_4965_hw_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-led.c b/drivers/net/wireless/iwlegacy/iwl-4965-led.c
deleted file mode 100644
index 6862fdc..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-led.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <asm/unaligned.h>
-
-#include "iwl-commands.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-4965-led.h"
-
-/* Send led command */
-static int
-iwl4965_send_led_cmd(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd)
-{
- struct iwl_host_cmd cmd = {
- .id = REPLY_LEDS_CMD,
- .len = sizeof(struct iwl_led_cmd),
- .data = led_cmd,
- .flags = CMD_ASYNC,
- .callback = NULL,
- };
- u32 reg;
-
- reg = iwl_read32(priv, CSR_LED_REG);
- if (reg != (reg & CSR_LED_BSM_CTRL_MSK))
- iwl_write32(priv, CSR_LED_REG, reg & CSR_LED_BSM_CTRL_MSK);
-
- return iwl_legacy_send_cmd(priv, &cmd);
-}
-
-/* Set led register off */
-void iwl4965_led_enable(struct iwl_priv *priv)
-{
- iwl_write32(priv, CSR_LED_REG, CSR_LED_REG_TRUN_ON);
-}
-
-const struct iwl_led_ops iwl4965_led_ops = {
- .cmd = iwl4965_send_led_cmd,
-};
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-led.h b/drivers/net/wireless/iwlegacy/iwl-4965-led.h
deleted file mode 100644
index 5ed3615..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-led.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_4965_led_h__
-#define __iwl_4965_led_h__
-
-extern const struct iwl_led_ops iwl4965_led_ops;
-void iwl4965_led_enable(struct iwl_priv *priv);
-
-#endif /* __iwl_4965_led_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-lib.c b/drivers/net/wireless/iwlegacy/iwl-4965-lib.c
deleted file mode 100644
index 2be6d9e..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-lib.c
+++ /dev/null
@@ -1,1194 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-#include <linux/etherdevice.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965-hw.h"
-#include "iwl-4965.h"
-#include "iwl-sta.h"
-
-void iwl4965_check_abort_status(struct iwl_priv *priv,
- u8 frame_count, u32 status)
-{
- if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) {
- IWL_ERR(priv, "Tx flush command to flush out all frames\n");
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status))
- queue_work(priv->workqueue, &priv->tx_flush);
- }
-}
-
-/*
- * EEPROM
- */
-struct iwl_mod_params iwl4965_mod_params = {
- .amsdu_size_8K = 1,
- .restart_fw = 1,
- /* the rest are 0 by default */
-};
-
-void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_legacy_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- for (i = 0; i < RX_QUEUE_SIZE; i++)
- rxq->queue[i] = NULL;
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- u32 rb_size;
- const u32 rfdnlog = RX_QUEUE_SIZE_LOG; /* 256 RBDs */
- u32 rb_timeout = 0;
-
- if (priv->cfg->mod_params->amsdu_size_8K)
- rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K;
- else
- rb_size = FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K;
-
- /* Stop Rx DMA */
- iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
-
- /* Reset driver's Rx queue write index */
- iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_WPTR_REG, 0);
-
- /* Tell device where to find RBD circular buffer in DRAM */
- iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_RBDCB_BASE_REG,
- (u32)(rxq->bd_dma >> 8));
-
- /* Tell device where in DRAM to update its Rx status */
- iwl_legacy_write_direct32(priv, FH_RSCSR_CHNL0_STTS_WPTR_REG,
- rxq->rb_stts_dma >> 4);
-
- /* Enable Rx DMA
- * Direct rx interrupts to hosts
- * Rx buffer size 4 or 8k
- * RB timeout 0x10
- * 256 RBDs
- */
- iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG,
- FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL |
- FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL |
- FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK |
- rb_size|
- (rb_timeout << FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS)|
- (rfdnlog << FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS));
-
- /* Set interrupt coalescing timer to default (2048 usecs) */
- iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF);
-
- return 0;
-}
-
-static void iwl4965_set_pwr_vmain(struct iwl_priv *priv)
-{
-/*
- * (for documentation purposes)
- * to set power to V_AUX, do:
-
- if (pci_pme_capable(priv->pci_dev, PCI_D3cold))
- iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VAUX,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
- */
-
- iwl_legacy_set_bits_mask_prph(priv, APMG_PS_CTRL_REG,
- APMG_PS_CTRL_VAL_PWR_SRC_VMAIN,
- ~APMG_PS_CTRL_MSK_PWR_SRC);
-}
-
-int iwl4965_hw_nic_init(struct iwl_priv *priv)
-{
- unsigned long flags;
- struct iwl_rx_queue *rxq = &priv->rxq;
- int ret;
-
- /* nic_init */
- spin_lock_irqsave(&priv->lock, flags);
- priv->cfg->ops->lib->apm_ops.init(priv);
-
- /* Set interrupt coalescing calibration timer to default (512 usecs) */
- iwl_write8(priv, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl4965_set_pwr_vmain(priv);
-
- priv->cfg->ops->lib->apm_ops.config(priv);
-
- /* Allocate the RX queue, or reset if it is already allocated */
- if (!rxq->bd) {
- ret = iwl_legacy_rx_queue_alloc(priv);
- if (ret) {
- IWL_ERR(priv, "Unable to initialize Rx queue\n");
- return -ENOMEM;
- }
- } else
- iwl4965_rx_queue_reset(priv, rxq);
-
- iwl4965_rx_replenish(priv);
-
- iwl4965_rx_init(priv, rxq);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- rxq->need_update = 1;
- iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Allocate or reset and init all Tx and Command queues */
- if (!priv->txq) {
- ret = iwl4965_txq_ctx_alloc(priv);
- if (ret)
- return ret;
- } else
- iwl4965_txq_ctx_reset(priv);
-
- set_bit(STATUS_INIT, &priv->status);
-
- return 0;
-}
-
-/**
- * iwl4965_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
- */
-static inline __le32 iwl4965_dma_addr2rbd_ptr(struct iwl_priv *priv,
- dma_addr_t dma_addr)
-{
- return cpu_to_le32((u32)(dma_addr >> 8));
-}
-
-/**
- * iwl4965_rx_queue_restock - refill RX queue from pre-allocated pool
- *
- * If there are slots in the RX queue that need to be restocked,
- * and we have free pre-allocated buffers, fill the ranks as much
- * as we can, pulling from rx_free.
- *
- * This moves the 'write' index forward to catch up with 'processed', and
- * also updates the memory address in the firmware to reference the new
- * target buffer.
- */
-void iwl4965_rx_queue_restock(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- unsigned long flags;
-
- spin_lock_irqsave(&rxq->lock, flags);
- while ((iwl_legacy_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
- /* The overwritten rxb must be a used one */
- rxb = rxq->queue[rxq->write];
- BUG_ON(rxb && rxb->page);
-
- /* Get next free Rx buffer, remove from free list */
- element = rxq->rx_free.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- list_del(element);
-
- /* Point to Rx buffer via next RBD in circular buffer */
- rxq->bd[rxq->write] = iwl4965_dma_addr2rbd_ptr(priv,
- rxb->page_dma);
- rxq->queue[rxq->write] = rxb;
- rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
- rxq->free_count--;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
- /* If the pre-allocated buffer pool is dropping low, schedule to
- * refill it */
- if (rxq->free_count <= RX_LOW_WATERMARK)
- queue_work(priv->workqueue, &priv->rx_replenish);
-
-
- /* If we've added more space for the firmware to place data, tell it.
- * Increment device's write pointer in multiples of 8. */
- if (rxq->write_actual != (rxq->write & ~0x7)) {
- spin_lock_irqsave(&rxq->lock, flags);
- rxq->need_update = 1;
- spin_unlock_irqrestore(&rxq->lock, flags);
- iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
- }
-}
-
-/**
- * iwl4965_rx_replenish - Move all used packet from rx_used to rx_free
- *
- * When moving to rx_free an SKB is allocated for the slot.
- *
- * Also restock the Rx queue via iwl_rx_queue_restock.
- * This is called as a scheduled work item (except for during initialization)
- */
-static void iwl4965_rx_allocate(struct iwl_priv *priv, gfp_t priority)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- struct page *page;
- unsigned long flags;
- gfp_t gfp_mask = priority;
-
- while (1) {
- spin_lock_irqsave(&rxq->lock, flags);
- if (list_empty(&rxq->rx_used)) {
- spin_unlock_irqrestore(&rxq->lock, flags);
- return;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- if (rxq->free_count > RX_LOW_WATERMARK)
- gfp_mask |= __GFP_NOWARN;
-
- if (priv->hw_params.rx_page_order > 0)
- gfp_mask |= __GFP_COMP;
-
- /* Alloc a new receive buffer */
- page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order);
- if (!page) {
- if (net_ratelimit())
- IWL_DEBUG_INFO(priv, "alloc_pages failed, "
- "order: %d\n",
- priv->hw_params.rx_page_order);
-
- if ((rxq->free_count <= RX_LOW_WATERMARK) &&
- net_ratelimit())
- IWL_CRIT(priv,
- "Failed to alloc_pages with %s. "
- "Only %u free buffers remaining.\n",
- priority == GFP_ATOMIC ?
- "GFP_ATOMIC" : "GFP_KERNEL",
- rxq->free_count);
- /* We don't reschedule replenish work here -- we will
- * call the restock method and if it still needs
- * more buffers it will schedule replenish */
- return;
- }
-
- spin_lock_irqsave(&rxq->lock, flags);
-
- if (list_empty(&rxq->rx_used)) {
- spin_unlock_irqrestore(&rxq->lock, flags);
- __free_pages(page, priv->hw_params.rx_page_order);
- return;
- }
- element = rxq->rx_used.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- list_del(element);
-
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- BUG_ON(rxb->page);
- rxb->page = page;
- /* Get physical address of the RB */
- rxb->page_dma = pci_map_page(priv->pci_dev, page, 0,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- /* dma address must be no more than 36 bits */
- BUG_ON(rxb->page_dma & ~DMA_BIT_MASK(36));
- /* and also 256 byte aligned! */
- BUG_ON(rxb->page_dma & DMA_BIT_MASK(8));
-
- spin_lock_irqsave(&rxq->lock, flags);
-
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- priv->alloc_rxb_page++;
-
- spin_unlock_irqrestore(&rxq->lock, flags);
- }
-}
-
-void iwl4965_rx_replenish(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- iwl4965_rx_allocate(priv, GFP_KERNEL);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl4965_rx_queue_restock(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-void iwl4965_rx_replenish_now(struct iwl_priv *priv)
-{
- iwl4965_rx_allocate(priv, GFP_ATOMIC);
-
- iwl4965_rx_queue_restock(priv);
-}
-
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-void iwl4965_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_legacy_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- }
-
- dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->bd_dma);
- dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status),
- rxq->rb_stts, rxq->rb_stts_dma);
- rxq->bd = NULL;
- rxq->rb_stts = NULL;
-}
-
-int iwl4965_rxq_stop(struct iwl_priv *priv)
-{
-
- /* stop Rx DMA */
- iwl_legacy_write_direct32(priv, FH_MEM_RCSR_CHNL0_CONFIG_REG, 0);
- iwl_poll_direct_bit(priv, FH_MEM_RSSR_RX_STATUS_REG,
- FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE, 1000);
-
- return 0;
-}
-
-int iwl4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band)
-{
- int idx = 0;
- int band_offset = 0;
-
- /* HT rate format: mac80211 wants an MCS number, which is just LSB */
- if (rate_n_flags & RATE_MCS_HT_MSK) {
- idx = (rate_n_flags & 0xff);
- return idx;
- /* Legacy rate format, search for match in table */
- } else {
- if (band == IEEE80211_BAND_5GHZ)
- band_offset = IWL_FIRST_OFDM_RATE;
- for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
- if (iwlegacy_rates[idx].plcp == (rate_n_flags & 0xFF))
- return idx - band_offset;
- }
-
- return -1;
-}
-
-static int iwl4965_calc_rssi(struct iwl_priv *priv,
- struct iwl_rx_phy_res *rx_resp)
-{
- /* data from PHY/DSP regarding signal strength, etc.,
- * contents are always there, not configurable by host. */
- struct iwl4965_rx_non_cfg_phy *ncphy =
- (struct iwl4965_rx_non_cfg_phy *)rx_resp->non_cfg_phy_buf;
- u32 agc = (le16_to_cpu(ncphy->agc_info) & IWL49_AGC_DB_MASK)
- >> IWL49_AGC_DB_POS;
-
- u32 valid_antennae =
- (le16_to_cpu(rx_resp->phy_flags) & IWL49_RX_PHY_FLAGS_ANTENNAE_MASK)
- >> IWL49_RX_PHY_FLAGS_ANTENNAE_OFFSET;
- u8 max_rssi = 0;
- u32 i;
-
- /* Find max rssi among 3 possible receivers.
- * These values are measured by the digital signal processor (DSP).
- * They should stay fairly constant even as the signal strength varies,
- * if the radio's automatic gain control (AGC) is working right.
- * AGC value (see below) will provide the "interesting" info. */
- for (i = 0; i < 3; i++)
- if (valid_antennae & (1 << i))
- max_rssi = max(ncphy->rssi_info[i << 1], max_rssi);
-
- IWL_DEBUG_STATS(priv, "Rssi In A %d B %d C %d Max %d AGC dB %d\n",
- ncphy->rssi_info[0], ncphy->rssi_info[2], ncphy->rssi_info[4],
- max_rssi, agc);
-
- /* dBm = max_rssi dB - agc dB - constant.
- * Higher AGC (higher radio gain) means lower signal. */
- return max_rssi - agc - IWL4965_RSSI_OFFSET;
-}
-
-
-static u32 iwl4965_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in)
-{
- u32 decrypt_out = 0;
-
- if ((decrypt_in & RX_RES_STATUS_STATION_FOUND) ==
- RX_RES_STATUS_STATION_FOUND)
- decrypt_out |= (RX_RES_STATUS_STATION_FOUND |
- RX_RES_STATUS_NO_STATION_INFO_MISMATCH);
-
- decrypt_out |= (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK);
-
- /* packet was not encrypted */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_NONE)
- return decrypt_out;
-
- /* packet was encrypted with unknown alg */
- if ((decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) ==
- RX_RES_STATUS_SEC_TYPE_ERR)
- return decrypt_out;
-
- /* decryption was not done in HW */
- if ((decrypt_in & RX_MPDU_RES_STATUS_DEC_DONE_MSK) !=
- RX_MPDU_RES_STATUS_DEC_DONE_MSK)
- return decrypt_out;
-
- switch (decrypt_in & RX_RES_STATUS_SEC_TYPE_MSK) {
-
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- /* alg is CCM: check MIC only */
- if (!(decrypt_in & RX_MPDU_RES_STATUS_MIC_OK))
- /* Bad MIC */
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
-
- break;
-
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_TTAK_OK)) {
- /* Bad TTAK */
- decrypt_out |= RX_RES_STATUS_BAD_KEY_TTAK;
- break;
- }
- /* fall through if TTAK OK */
- default:
- if (!(decrypt_in & RX_MPDU_RES_STATUS_ICV_OK))
- decrypt_out |= RX_RES_STATUS_BAD_ICV_MIC;
- else
- decrypt_out |= RX_RES_STATUS_DECRYPT_OK;
- break;
- }
-
- IWL_DEBUG_RX(priv, "decrypt_in:0x%x decrypt_out = 0x%x\n",
- decrypt_in, decrypt_out);
-
- return decrypt_out;
-}
-
-static void iwl4965_pass_packet_to_mac80211(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u16 len,
- u32 ampdu_status,
- struct iwl_rx_mem_buffer *rxb,
- struct ieee80211_rx_status *stats)
-{
- struct sk_buff *skb;
- __le16 fc = hdr->frame_control;
-
- /* We only process data packets if the interface is open */
- if (unlikely(!priv->is_open)) {
- IWL_DEBUG_DROP_LIMIT(priv,
- "Dropping packet while interface is not open.\n");
- return;
- }
-
- /* In case of HW accelerated crypto and bad decryption, drop */
- if (!priv->cfg->mod_params->sw_crypto &&
- iwl_legacy_set_decrypted_flag(priv, hdr, ampdu_status, stats))
- return;
-
- skb = dev_alloc_skb(128);
- if (!skb) {
- IWL_ERR(priv, "dev_alloc_skb failed\n");
- return;
- }
-
- skb_add_rx_frag(skb, 0, rxb->page, (void *)hdr - rxb_addr(rxb), len);
-
- iwl_legacy_update_stats(priv, false, fc, len);
- memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
-
- ieee80211_rx(priv->hw, skb);
- priv->alloc_rxb_page--;
- rxb->page = NULL;
-}
-
-/* Called for REPLY_RX (legacy ABG frames), or
- * REPLY_RX_MPDU_CMD (HT high-throughput N frames). */
-void iwl4965_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct ieee80211_hdr *header;
- struct ieee80211_rx_status rx_status;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_rx_phy_res *phy_res;
- __le32 rx_pkt_status;
- struct iwl_rx_mpdu_res_start *amsdu;
- u32 len;
- u32 ampdu_status;
- u32 rate_n_flags;
-
- /**
- * REPLY_RX and REPLY_RX_MPDU_CMD are handled differently.
- * REPLY_RX: physical layer info is in this buffer
- * REPLY_RX_MPDU_CMD: physical layer info was sent in separate
- * command and cached in priv->last_phy_res
- *
- * Here we set up local variables depending on which command is
- * received.
- */
- if (pkt->hdr.cmd == REPLY_RX) {
- phy_res = (struct iwl_rx_phy_res *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*phy_res)
- + phy_res->cfg_phy_cnt);
-
- len = le16_to_cpu(phy_res->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*phy_res) +
- phy_res->cfg_phy_cnt + len);
- ampdu_status = le32_to_cpu(rx_pkt_status);
- } else {
- if (!priv->_4965.last_phy_res_valid) {
- IWL_ERR(priv, "MPDU frame without cached PHY data\n");
- return;
- }
- phy_res = &priv->_4965.last_phy_res;
- amsdu = (struct iwl_rx_mpdu_res_start *)pkt->u.raw;
- header = (struct ieee80211_hdr *)(pkt->u.raw + sizeof(*amsdu));
- len = le16_to_cpu(amsdu->byte_count);
- rx_pkt_status = *(__le32 *)(pkt->u.raw + sizeof(*amsdu) + len);
- ampdu_status = iwl4965_translate_rx_status(priv,
- le32_to_cpu(rx_pkt_status));
- }
-
- if ((unlikely(phy_res->cfg_phy_cnt > 20))) {
- IWL_DEBUG_DROP(priv, "dsp size out of range [0,20]: %d/n",
- phy_res->cfg_phy_cnt);
- return;
- }
-
- if (!(rx_pkt_status & RX_RES_STATUS_NO_CRC32_ERROR) ||
- !(rx_pkt_status & RX_RES_STATUS_NO_RXE_OVERFLOW)) {
- IWL_DEBUG_RX(priv, "Bad CRC or FIFO: 0x%08X.\n",
- le32_to_cpu(rx_pkt_status));
- return;
- }
-
- /* This will be used in several places later */
- rate_n_flags = le32_to_cpu(phy_res->rate_n_flags);
-
- /* rx_status carries information about the packet to mac80211 */
- rx_status.mactime = le64_to_cpu(phy_res->timestamp);
- rx_status.band = (phy_res->phy_flags & RX_RES_PHY_FLAGS_BAND_24_MSK) ?
- IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
- rx_status.freq =
- ieee80211_channel_to_frequency(le16_to_cpu(phy_res->channel),
- rx_status.band);
- rx_status.rate_idx =
- iwl4965_hwrate_to_mac80211_idx(rate_n_flags, rx_status.band);
- rx_status.flag = 0;
-
- /* TSF isn't reliable. In order to allow smooth user experience,
- * this W/A doesn't propagate it to the mac80211 */
- /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/
-
- priv->ucode_beacon_time = le32_to_cpu(phy_res->beacon_time_stamp);
-
- /* Find max signal strength (dBm) among 3 antenna/receiver chains */
- rx_status.signal = iwl4965_calc_rssi(priv, phy_res);
-
- iwl_legacy_dbg_log_rx_data_frame(priv, len, header);
- IWL_DEBUG_STATS_LIMIT(priv, "Rssi %d, TSF %llu\n",
- rx_status.signal, (unsigned long long)rx_status.mactime);
-
- /*
- * "antenna number"
- *
- * It seems that the antenna field in the phy flags value
- * is actually a bit field. This is undefined by radiotap,
- * it wants an actual antenna number but I always get "7"
- * for most legacy frames I receive indicating that the
- * same frame was received on all three RX chains.
- *
- * I think this field should be removed in favor of a
- * new 802.11n radiotap field "RX chains" that is defined
- * as a bitmask.
- */
- rx_status.antenna =
- (le16_to_cpu(phy_res->phy_flags) & RX_RES_PHY_FLAGS_ANTENNA_MSK)
- >> RX_RES_PHY_FLAGS_ANTENNA_POS;
-
- /* set the preamble flag if appropriate */
- if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
- rx_status.flag |= RX_FLAG_SHORTPRE;
-
- /* Set up the HT phy flags */
- if (rate_n_flags & RATE_MCS_HT_MSK)
- rx_status.flag |= RX_FLAG_HT;
- if (rate_n_flags & RATE_MCS_HT40_MSK)
- rx_status.flag |= RX_FLAG_40MHZ;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- rx_status.flag |= RX_FLAG_SHORT_GI;
-
- iwl4965_pass_packet_to_mac80211(priv, header, len, ampdu_status,
- rxb, &rx_status);
-}
-
-/* Cache phy data (Rx signal strength, etc) for HT frame (REPLY_RX_PHY_CMD).
- * This will be used later in iwl_rx_reply_rx() for REPLY_RX_MPDU_CMD. */
-void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- priv->_4965.last_phy_res_valid = true;
- memcpy(&priv->_4965.last_phy_res, pkt->u.raw,
- sizeof(struct iwl_rx_phy_res));
-}
-
-static int iwl4965_get_channels_for_scan(struct iwl_priv *priv,
- struct ieee80211_vif *vif,
- enum ieee80211_band band,
- u8 is_active, u8 n_probes,
- struct iwl_scan_channel *scan_ch)
-{
- struct ieee80211_channel *chan;
- const struct ieee80211_supported_band *sband;
- const struct iwl_channel_info *ch_info;
- u16 passive_dwell = 0;
- u16 active_dwell = 0;
- int added, i;
- u16 channel;
-
- sband = iwl_get_hw_mode(priv, band);
- if (!sband)
- return 0;
-
- active_dwell = iwl_legacy_get_active_dwell_time(priv, band, n_probes);
- passive_dwell = iwl_legacy_get_passive_dwell_time(priv, band, vif);
-
- if (passive_dwell <= active_dwell)
- passive_dwell = active_dwell + 1;
-
- for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
- chan = priv->scan_request->channels[i];
-
- if (chan->band != band)
- continue;
-
- channel = chan->hw_value;
- scan_ch->channel = cpu_to_le16(channel);
-
- ch_info = iwl_legacy_get_channel_info(priv, band, channel);
- if (!iwl_legacy_is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN(priv,
- "Channel %d is INVALID for this band.\n",
- channel);
- continue;
- }
-
- if (!is_active || iwl_legacy_is_channel_passive(ch_info) ||
- (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN))
- scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE;
- else
- scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE;
-
- if (n_probes)
- scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes);
-
- scan_ch->active_dwell = cpu_to_le16(active_dwell);
- scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
-
- /* Set txpower levels to defaults */
- scan_ch->dsp_atten = 110;
-
- /* NOTE: if we were doing 6Mb OFDM for scans we'd use
- * power level:
- * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3;
- */
- if (band == IEEE80211_BAND_5GHZ)
- scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3;
- else
- scan_ch->tx_gain = ((1 << 5) | (5 << 3));
-
- IWL_DEBUG_SCAN(priv, "Scanning ch=%d prob=0x%X [%s %d]\n",
- channel, le32_to_cpu(scan_ch->type),
- (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ?
- "ACTIVE" : "PASSIVE",
- (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ?
- active_dwell : passive_dwell);
-
- scan_ch++;
- added++;
- }
-
- IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added);
- return added;
-}
-
-int iwl4965_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
-{
- struct iwl_host_cmd cmd = {
- .id = REPLY_SCAN_CMD,
- .len = sizeof(struct iwl_scan_cmd),
- .flags = CMD_SIZE_HUGE,
- };
- struct iwl_scan_cmd *scan;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- u32 rate_flags = 0;
- u16 cmd_len;
- u16 rx_chain = 0;
- enum ieee80211_band band;
- u8 n_probes = 0;
- u8 rx_ant = priv->hw_params.valid_rx_ant;
- u8 rate;
- bool is_active = false;
- int chan_mod;
- u8 active_chains;
- u8 scan_tx_antennas = priv->hw_params.valid_tx_ant;
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- if (vif)
- ctx = iwl_legacy_rxon_ctx_from_vif(vif);
-
- if (!priv->scan_cmd) {
- priv->scan_cmd = kmalloc(sizeof(struct iwl_scan_cmd) +
- IWL_MAX_SCAN_SIZE, GFP_KERNEL);
- if (!priv->scan_cmd) {
- IWL_DEBUG_SCAN(priv,
- "fail to allocate memory for scan\n");
- return -ENOMEM;
- }
- }
- scan = priv->scan_cmd;
- memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE);
-
- scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
- scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
-
- if (iwl_legacy_is_any_associated(priv)) {
- u16 interval;
- u32 extra;
- u32 suspend_time = 100;
- u32 scan_suspend_time = 100;
-
- IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
- interval = vif->bss_conf.beacon_int;
-
- scan->suspend_time = 0;
- scan->max_out_time = cpu_to_le32(200 * 1024);
- if (!interval)
- interval = suspend_time;
-
- extra = (suspend_time / interval) << 22;
- scan_suspend_time = (extra |
- ((suspend_time % interval) * 1024));
- scan->suspend_time = cpu_to_le32(scan_suspend_time);
- IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
- scan_suspend_time, interval);
- }
-
- if (priv->scan_request->n_ssids) {
- int i, p = 0;
- IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
- for (i = 0; i < priv->scan_request->n_ssids; i++) {
- /* always does wildcard anyway */
- if (!priv->scan_request->ssids[i].ssid_len)
- continue;
- scan->direct_scan[p].id = WLAN_EID_SSID;
- scan->direct_scan[p].len =
- priv->scan_request->ssids[i].ssid_len;
- memcpy(scan->direct_scan[p].ssid,
- priv->scan_request->ssids[i].ssid,
- priv->scan_request->ssids[i].ssid_len);
- n_probes++;
- p++;
- }
- is_active = true;
- } else
- IWL_DEBUG_SCAN(priv, "Start passive scan.\n");
-
- scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
- scan->tx_cmd.sta_id = ctx->bcast_sta_id;
- scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- switch (priv->scan_band) {
- case IEEE80211_BAND_2GHZ:
- scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
- chan_mod = le32_to_cpu(
- priv->contexts[IWL_RXON_CTX_BSS].active.flags &
- RXON_FLG_CHANNEL_MODE_MSK)
- >> RXON_FLG_CHANNEL_MODE_POS;
- if (chan_mod == CHANNEL_MODE_PURE_40) {
- rate = IWL_RATE_6M_PLCP;
- } else {
- rate = IWL_RATE_1M_PLCP;
- rate_flags = RATE_MCS_CCK_MSK;
- }
- break;
- case IEEE80211_BAND_5GHZ:
- rate = IWL_RATE_6M_PLCP;
- break;
- default:
- IWL_WARN(priv, "Invalid scan band\n");
- return -EIO;
- }
-
- /*
- * If active scanning is requested but a certain channel is
- * marked passive, we can do active scanning if we detect
- * transmissions.
- *
- * There is an issue with some firmware versions that triggers
- * a sysassert on a "good CRC threshold" of zero (== disabled),
- * on a radar channel even though this means that we should NOT
- * send probes.
- *
- * The "good CRC threshold" is the number of frames that we
- * need to receive during our dwell time on a channel before
- * sending out probes -- setting this to a huge value will
- * mean we never reach it, but at the same time work around
- * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER
- * here instead of IWL_GOOD_CRC_TH_DISABLED.
- */
- scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
- IWL_GOOD_CRC_TH_NEVER;
-
- band = priv->scan_band;
-
- if (priv->cfg->scan_rx_antennas[band])
- rx_ant = priv->cfg->scan_rx_antennas[band];
-
- priv->scan_tx_ant[band] = iwl4965_toggle_tx_ant(priv,
- priv->scan_tx_ant[band],
- scan_tx_antennas);
- rate_flags |= iwl4965_ant_idx_to_flags(priv->scan_tx_ant[band]);
- scan->tx_cmd.rate_n_flags = iwl4965_hw_set_rate_n_flags(rate, rate_flags);
-
- /* In power save mode use one chain, otherwise use all chains */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- /* rx_ant has been set to all valid chains previously */
- active_chains = rx_ant &
- ((u8)(priv->chain_noise_data.active_chains));
- if (!active_chains)
- active_chains = rx_ant;
-
- IWL_DEBUG_SCAN(priv, "chain_noise_data.active_chains: %u\n",
- priv->chain_noise_data.active_chains);
-
- rx_ant = iwl4965_first_antenna(active_chains);
- }
-
- /* MIMO is not used here, but value is required */
- rx_chain |= priv->hw_params.valid_rx_ant << RXON_RX_CHAIN_VALID_POS;
- rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS;
- rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS;
- rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS;
- scan->rx_chain = cpu_to_le16(rx_chain);
-
- cmd_len = iwl_legacy_fill_probe_req(priv,
- (struct ieee80211_mgmt *)scan->data,
- vif->addr,
- priv->scan_request->ie,
- priv->scan_request->ie_len,
- IWL_MAX_SCAN_SIZE - sizeof(*scan));
- scan->tx_cmd.len = cpu_to_le16(cmd_len);
-
- scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK |
- RXON_FILTER_BCON_AWARE_MSK);
-
- scan->channel_count = iwl4965_get_channels_for_scan(priv, vif, band,
- is_active, n_probes,
- (void *)&scan->data[cmd_len]);
- if (scan->channel_count == 0) {
- IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
- return -EIO;
- }
-
- cmd.len += le16_to_cpu(scan->tx_cmd.len) +
- scan->channel_count * sizeof(struct iwl_scan_channel);
- cmd.data = scan;
- scan->len = cpu_to_le16(cmd.len);
-
- set_bit(STATUS_SCAN_HW, &priv->status);
-
- ret = iwl_legacy_send_cmd_sync(priv, &cmd);
- if (ret)
- clear_bit(STATUS_SCAN_HW, &priv->status);
-
- return ret;
-}
-
-int iwl4965_manage_ibss_station(struct iwl_priv *priv,
- struct ieee80211_vif *vif, bool add)
-{
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
-
- if (add)
- return iwl4965_add_bssid_station(priv, vif_priv->ctx,
- vif->bss_conf.bssid,
- &vif_priv->ibss_bssid_sta_id);
- return iwl_legacy_remove_station(priv, vif_priv->ibss_bssid_sta_id,
- vif->bss_conf.bssid);
-}
-
-void iwl4965_free_tfds_in_queue(struct iwl_priv *priv,
- int sta_id, int tid, int freed)
-{
- lockdep_assert_held(&priv->sta_lock);
-
- if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
- else {
- IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n",
- priv->stations[sta_id].tid[tid].tfds_in_queue,
- freed);
- priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
- }
-}
-
-#define IWL_TX_QUEUE_MSK 0xfffff
-
-static bool iwl4965_is_single_rx_stream(struct iwl_priv *priv)
-{
- return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC ||
- priv->current_ht_config.single_chain_sufficient;
-}
-
-#define IWL_NUM_RX_CHAINS_MULTIPLE 3
-#define IWL_NUM_RX_CHAINS_SINGLE 2
-#define IWL_NUM_IDLE_CHAINS_DUAL 2
-#define IWL_NUM_IDLE_CHAINS_SINGLE 1
-
-/*
- * Determine how many receiver/antenna chains to use.
- *
- * More provides better reception via diversity. Fewer saves power
- * at the expense of throughput, but only when not in powersave to
- * start with.
- *
- * MIMO (dual stream) requires at least 2, but works better with 3.
- * This does not determine *which* chains to use, just how many.
- */
-static int iwl4965_get_active_rx_chain_count(struct iwl_priv *priv)
-{
- /* # of Rx chains to use when expecting MIMO. */
- if (iwl4965_is_single_rx_stream(priv))
- return IWL_NUM_RX_CHAINS_SINGLE;
- else
- return IWL_NUM_RX_CHAINS_MULTIPLE;
-}
-
-/*
- * When we are in power saving mode, unless device support spatial
- * multiplexing power save, use the active count for rx chain count.
- */
-static int
-iwl4965_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
-{
- /* # Rx chains when idling, depending on SMPS mode */
- switch (priv->current_ht_config.smps) {
- case IEEE80211_SMPS_STATIC:
- case IEEE80211_SMPS_DYNAMIC:
- return IWL_NUM_IDLE_CHAINS_SINGLE;
- case IEEE80211_SMPS_OFF:
- return active_cnt;
- default:
- WARN(1, "invalid SMPS mode %d",
- priv->current_ht_config.smps);
- return active_cnt;
- }
-}
-
-/* up to 4 chains */
-static u8 iwl4965_count_chain_bitmap(u32 chain_bitmap)
-{
- u8 res;
- res = (chain_bitmap & BIT(0)) >> 0;
- res += (chain_bitmap & BIT(1)) >> 1;
- res += (chain_bitmap & BIT(2)) >> 2;
- res += (chain_bitmap & BIT(3)) >> 3;
- return res;
-}
-
-/**
- * iwl4965_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
- *
- * Selects how many and which Rx receivers/antennas/chains to use.
- * This should not be used for scan command ... it puts data in wrong place.
- */
-void iwl4965_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- bool is_single = iwl4965_is_single_rx_stream(priv);
- bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
- u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt;
- u32 active_chains;
- u16 rx_chain;
-
- /* Tell uCode which antennas are actually connected.
- * Before first association, we assume all antennas are connected.
- * Just after first association, iwl4965_chain_noise_calibration()
- * checks which antennas actually *are* connected. */
- if (priv->chain_noise_data.active_chains)
- active_chains = priv->chain_noise_data.active_chains;
- else
- active_chains = priv->hw_params.valid_rx_ant;
-
- rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS;
-
- /* How many receivers should we use? */
- active_rx_cnt = iwl4965_get_active_rx_chain_count(priv);
- idle_rx_cnt = iwl4965_get_idle_rx_chain_count(priv, active_rx_cnt);
-
-
- /* correct rx chain count according hw settings
- * and chain noise calibration
- */
- valid_rx_cnt = iwl4965_count_chain_bitmap(active_chains);
- if (valid_rx_cnt < active_rx_cnt)
- active_rx_cnt = valid_rx_cnt;
-
- if (valid_rx_cnt < idle_rx_cnt)
- idle_rx_cnt = valid_rx_cnt;
-
- rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS;
- rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS;
-
- ctx->staging.rx_chain = cpu_to_le16(rx_chain);
-
- if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam)
- ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK;
- else
- ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK;
-
- IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n",
- ctx->staging.rx_chain,
- active_rx_cnt, idle_rx_cnt);
-
- WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 ||
- active_rx_cnt < idle_rx_cnt);
-}
-
-u8 iwl4965_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
-{
- int i;
- u8 ind = ant;
-
- for (i = 0; i < RATE_ANT_NUM - 1; i++) {
- ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0;
- if (valid & BIT(ind))
- return ind;
- }
- return ant;
-}
-
-static const char *iwl4965_get_fh_string(int cmd)
-{
- switch (cmd) {
- IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG);
- IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG);
- IWL_CMD(FH_RSCSR_CHNL0_WPTR);
- IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG);
- IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG);
- IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG);
- IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV);
- IWL_CMD(FH_TSSR_TX_STATUS_REG);
- IWL_CMD(FH_TSSR_TX_ERROR_REG);
- default:
- return "UNKNOWN";
- }
-}
-
-int iwl4965_dump_fh(struct iwl_priv *priv, char **buf, bool display)
-{
- int i;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- int pos = 0;
- size_t bufsz = 0;
-#endif
- static const u32 fh_tbl[] = {
- FH_RSCSR_CHNL0_STTS_WPTR_REG,
- FH_RSCSR_CHNL0_RBDCB_BASE_REG,
- FH_RSCSR_CHNL0_WPTR,
- FH_MEM_RCSR_CHNL0_CONFIG_REG,
- FH_MEM_RSSR_SHARED_CTRL_REG,
- FH_MEM_RSSR_RX_STATUS_REG,
- FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV,
- FH_TSSR_TX_STATUS_REG,
- FH_TSSR_TX_ERROR_REG
- };
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (display) {
- bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
- *buf = kmalloc(bufsz, GFP_KERNEL);
- if (!*buf)
- return -ENOMEM;
- pos += scnprintf(*buf + pos, bufsz - pos,
- "FH register values:\n");
- for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
- pos += scnprintf(*buf + pos, bufsz - pos,
- " %34s: 0X%08x\n",
- iwl4965_get_fh_string(fh_tbl[i]),
- iwl_legacy_read_direct32(priv, fh_tbl[i]));
- }
- return pos;
- }
-#endif
- IWL_ERR(priv, "FH register values:\n");
- for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
- IWL_ERR(priv, " %34s: 0X%08x\n",
- iwl4965_get_fh_string(fh_tbl[i]),
- iwl_legacy_read_direct32(priv, fh_tbl[i]));
- }
- return 0;
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c b/drivers/net/wireless/iwlegacy/iwl-4965-rs.c
deleted file mode 100644
index 57ebe21..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-rs.c
+++ /dev/null
@@ -1,2871 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <net/mac80211.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/delay.h>
-
-#include <linux/workqueue.h>
-
-#include "iwl-dev.h"
-#include "iwl-sta.h"
-#include "iwl-core.h"
-#include "iwl-4965.h"
-
-#define IWL4965_RS_NAME "iwl-4965-rs"
-
-#define NUM_TRY_BEFORE_ANT_TOGGLE 1
-#define IWL_NUMBER_TRY 1
-#define IWL_HT_NUMBER_TRY 3
-
-#define IWL_RATE_MAX_WINDOW 62 /* # tx in history window */
-#define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */
-#define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */
-
-/* max allowed rate miss before sync LQ cmd */
-#define IWL_MISSED_RATE_MAX 15
-/* max time to accum history 2 seconds */
-#define IWL_RATE_SCALE_FLUSH_INTVL (3*HZ)
-
-static u8 rs_ht_to_legacy[] = {
- IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX,
- IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX,
- IWL_RATE_6M_INDEX,
- IWL_RATE_6M_INDEX, IWL_RATE_9M_INDEX,
- IWL_RATE_12M_INDEX, IWL_RATE_18M_INDEX,
- IWL_RATE_24M_INDEX, IWL_RATE_36M_INDEX,
- IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX
-};
-
-static const u8 ant_toggle_lookup[] = {
- /*ANT_NONE -> */ ANT_NONE,
- /*ANT_A -> */ ANT_B,
- /*ANT_B -> */ ANT_C,
- /*ANT_AB -> */ ANT_BC,
- /*ANT_C -> */ ANT_A,
- /*ANT_AC -> */ ANT_AB,
- /*ANT_BC -> */ ANT_AC,
- /*ANT_ABC -> */ ANT_ABC,
-};
-
-#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \
- [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \
- IWL_RATE_SISO_##s##M_PLCP, \
- IWL_RATE_MIMO2_##s##M_PLCP,\
- IWL_RATE_##r##M_IEEE, \
- IWL_RATE_##ip##M_INDEX, \
- IWL_RATE_##in##M_INDEX, \
- IWL_RATE_##rp##M_INDEX, \
- IWL_RATE_##rn##M_INDEX, \
- IWL_RATE_##pp##M_INDEX, \
- IWL_RATE_##np##M_INDEX }
-
-/*
- * Parameter order:
- * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate
- *
- * If there isn't a valid next or previous rate then INV is used which
- * maps to IWL_RATE_INVALID
- *
- */
-const struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT] = {
- IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */
- IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */
- IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */
- IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */
- IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */
- IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */
- IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */
- IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */
- IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */
- IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */
- IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */
- IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */
- IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */
-};
-
-static int iwl4965_hwrate_to_plcp_idx(u32 rate_n_flags)
-{
- int idx = 0;
-
- /* HT rate format */
- if (rate_n_flags & RATE_MCS_HT_MSK) {
- idx = (rate_n_flags & 0xff);
-
- if (idx >= IWL_RATE_MIMO2_6M_PLCP)
- idx = idx - IWL_RATE_MIMO2_6M_PLCP;
-
- idx += IWL_FIRST_OFDM_RATE;
- /* skip 9M not supported in ht*/
- if (idx >= IWL_RATE_9M_INDEX)
- idx += 1;
- if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
- return idx;
-
- /* legacy rate format, search for match in table */
- } else {
- for (idx = 0; idx < ARRAY_SIZE(iwlegacy_rates); idx++)
- if (iwlegacy_rates[idx].plcp == (rate_n_flags & 0xFF))
- return idx;
- }
-
- return -1;
-}
-
-static void iwl4965_rs_rate_scale_perform(struct iwl_priv *priv,
- struct sk_buff *skb,
- struct ieee80211_sta *sta,
- struct iwl_lq_sta *lq_sta);
-static void iwl4965_rs_fill_link_cmd(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
-static void iwl4965_rs_stay_in_table(struct iwl_lq_sta *lq_sta,
- bool force_search);
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
- u32 *rate_n_flags, int index);
-#else
-static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
- u32 *rate_n_flags, int index)
-{}
-#endif
-
-/**
- * The following tables contain the expected throughput metrics for all rates
- *
- * 1, 2, 5.5, 11, 6, 9, 12, 18, 24, 36, 48, 54, 60 MBits
- *
- * where invalid entries are zeros.
- *
- * CCK rates are only valid in legacy table and will only be used in G
- * (2.4 GHz) band.
- */
-
-static s32 expected_tpt_legacy[IWL_RATE_COUNT] = {
- 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0
-};
-
-static s32 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = {
- {0, 0, 0, 0, 42, 0, 76, 102, 124, 158, 183, 193, 202}, /* Norm */
- {0, 0, 0, 0, 46, 0, 82, 110, 132, 167, 192, 202, 210}, /* SGI */
- {0, 0, 0, 0, 48, 0, 93, 135, 176, 251, 319, 351, 381}, /* AGG */
- {0, 0, 0, 0, 53, 0, 102, 149, 193, 275, 348, 381, 413}, /* AGG+SGI */
-};
-
-static s32 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = {
- {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */
- {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */
- {0, 0, 0, 0, 96, 0, 182, 259, 328, 451, 553, 598, 640}, /* AGG */
- {0, 0, 0, 0, 106, 0, 199, 282, 357, 487, 593, 640, 683}, /* AGG+SGI */
-};
-
-static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
- {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250}, /* Norm */
- {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256}, /* SGI */
- {0, 0, 0, 0, 92, 0, 175, 250, 317, 436, 534, 578, 619}, /* AGG */
- {0, 0, 0, 0, 102, 0, 192, 273, 344, 470, 573, 619, 660}, /* AGG+SGI*/
-};
-
-static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = {
- {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */
- {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */
- {0, 0, 0, 0, 180, 0, 327, 446, 545, 708, 828, 878, 922}, /* AGG */
- {0, 0, 0, 0, 197, 0, 355, 481, 584, 752, 872, 922, 966}, /* AGG+SGI */
-};
-
-/* mbps, mcs */
-static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
- { "1", "BPSK DSSS"},
- { "2", "QPSK DSSS"},
- {"5.5", "BPSK CCK"},
- { "11", "QPSK CCK"},
- { "6", "BPSK 1/2"},
- { "9", "BPSK 1/2"},
- { "12", "QPSK 1/2"},
- { "18", "QPSK 3/4"},
- { "24", "16QAM 1/2"},
- { "36", "16QAM 3/4"},
- { "48", "64QAM 2/3"},
- { "54", "64QAM 3/4"},
- { "60", "64QAM 5/6"},
-};
-
-#define MCS_INDEX_PER_STREAM (8)
-
-static inline u8 iwl4965_rs_extract_rate(u32 rate_n_flags)
-{
- return (u8)(rate_n_flags & 0xFF);
-}
-
-static void
-iwl4965_rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)
-{
- window->data = 0;
- window->success_counter = 0;
- window->success_ratio = IWL_INVALID_VALUE;
- window->counter = 0;
- window->average_tpt = IWL_INVALID_VALUE;
- window->stamp = 0;
-}
-
-static inline u8 iwl4965_rs_is_valid_ant(u8 valid_antenna, u8 ant_type)
-{
- return (ant_type & valid_antenna) == ant_type;
-}
-
-/*
- * removes the old data from the statistics. All data that is older than
- * TID_MAX_TIME_DIFF, will be deleted.
- */
-static void
-iwl4965_rs_tl_rm_old_stats(struct iwl_traffic_load *tl, u32 curr_time)
-{
- /* The oldest age we want to keep */
- u32 oldest_time = curr_time - TID_MAX_TIME_DIFF;
-
- while (tl->queue_count &&
- (tl->time_stamp < oldest_time)) {
- tl->total -= tl->packet_count[tl->head];
- tl->packet_count[tl->head] = 0;
- tl->time_stamp += TID_QUEUE_CELL_SPACING;
- tl->queue_count--;
- tl->head++;
- if (tl->head >= TID_QUEUE_MAX_SIZE)
- tl->head = 0;
- }
-}
-
-/*
- * increment traffic load value for tid and also remove
- * any old values if passed the certain time period
- */
-static u8 iwl4965_rs_tl_add_packet(struct iwl_lq_sta *lq_data,
- struct ieee80211_hdr *hdr)
-{
- u32 curr_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- struct iwl_traffic_load *tl = NULL;
- u8 tid;
-
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- u8 *qc = ieee80211_get_qos_ctl(hdr);
- tid = qc[0] & 0xf;
- } else
- return MAX_TID_COUNT;
-
- if (unlikely(tid >= TID_MAX_LOAD_COUNT))
- return MAX_TID_COUNT;
-
- tl = &lq_data->load[tid];
-
- curr_time -= curr_time % TID_ROUND_VALUE;
-
- /* Happens only for the first packet. Initialize the data */
- if (!(tl->queue_count)) {
- tl->total = 1;
- tl->time_stamp = curr_time;
- tl->queue_count = 1;
- tl->head = 0;
- tl->packet_count[0] = 1;
- return MAX_TID_COUNT;
- }
-
- time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- /* The history is too long: remove data that is older than */
- /* TID_MAX_TIME_DIFF */
- if (index >= TID_QUEUE_MAX_SIZE)
- iwl4965_rs_tl_rm_old_stats(tl, curr_time);
-
- index = (tl->head + index) % TID_QUEUE_MAX_SIZE;
- tl->packet_count[index] = tl->packet_count[index] + 1;
- tl->total = tl->total + 1;
-
- if ((index + 1) > tl->queue_count)
- tl->queue_count = index + 1;
-
- return tid;
-}
-
-/*
- get the traffic load value for tid
-*/
-static u32 iwl4965_rs_tl_get_load(struct iwl_lq_sta *lq_data, u8 tid)
-{
- u32 curr_time = jiffies_to_msecs(jiffies);
- u32 time_diff;
- s32 index;
- struct iwl_traffic_load *tl = NULL;
-
- if (tid >= TID_MAX_LOAD_COUNT)
- return 0;
-
- tl = &(lq_data->load[tid]);
-
- curr_time -= curr_time % TID_ROUND_VALUE;
-
- if (!(tl->queue_count))
- return 0;
-
- time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time);
- index = time_diff / TID_QUEUE_CELL_SPACING;
-
- /* The history is too long: remove data that is older than */
- /* TID_MAX_TIME_DIFF */
- if (index >= TID_QUEUE_MAX_SIZE)
- iwl4965_rs_tl_rm_old_stats(tl, curr_time);
-
- return tl->total;
-}
-
-static int iwl4965_rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_data, u8 tid,
- struct ieee80211_sta *sta)
-{
- int ret = -EAGAIN;
- u32 load;
-
- load = iwl4965_rs_tl_get_load(lq_data, tid);
-
- if (load > IWL_AGG_LOAD_THRESHOLD) {
- IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n",
- sta->addr, tid);
- ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
- if (ret == -EAGAIN) {
- /*
- * driver and mac80211 is out of sync
- * this might be cause by reloading firmware
- * stop the tx ba session here
- */
- IWL_ERR(priv, "Fail start Tx agg on tid: %d\n",
- tid);
- ieee80211_stop_tx_ba_session(sta, tid);
- }
- } else {
- IWL_ERR(priv, "Aggregation not enabled for tid %d "
- "because load = %u\n", tid, load);
- }
- return ret;
-}
-
-static void iwl4965_rs_tl_turn_on_agg(struct iwl_priv *priv, u8 tid,
- struct iwl_lq_sta *lq_data,
- struct ieee80211_sta *sta)
-{
- if (tid < TID_MAX_LOAD_COUNT)
- iwl4965_rs_tl_turn_on_agg_for_tid(priv, lq_data, tid, sta);
- else
- IWL_ERR(priv, "tid exceeds max load count: %d/%d\n",
- tid, TID_MAX_LOAD_COUNT);
-}
-
-static inline int iwl4965_get_iwl4965_num_of_ant_from_rate(u32 rate_n_flags)
-{
- return !!(rate_n_flags & RATE_MCS_ANT_A_MSK) +
- !!(rate_n_flags & RATE_MCS_ANT_B_MSK) +
- !!(rate_n_flags & RATE_MCS_ANT_C_MSK);
-}
-
-/*
- * Static function to get the expected throughput from an iwl_scale_tbl_info
- * that wraps a NULL pointer check
- */
-static s32
-iwl4965_get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index)
-{
- if (tbl->expected_tpt)
- return tbl->expected_tpt[rs_index];
- return 0;
-}
-
-/**
- * iwl4965_rs_collect_tx_data - Update the success/failure sliding window
- *
- * We keep a sliding window of the last 62 packets transmitted
- * at this rate. window->data contains the bitmask of successful
- * packets.
- */
-static int iwl4965_rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
- int scale_index, int attempts, int successes)
-{
- struct iwl_rate_scale_data *window = NULL;
- static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1));
- s32 fail_count, tpt;
-
- if (scale_index < 0 || scale_index >= IWL_RATE_COUNT)
- return -EINVAL;
-
- /* Select window for current tx bit rate */
- window = &(tbl->win[scale_index]);
-
- /* Get expected throughput */
- tpt = iwl4965_get_expected_tpt(tbl, scale_index);
-
- /*
- * Keep track of only the latest 62 tx frame attempts in this rate's
- * history window; anything older isn't really relevant any more.
- * If we have filled up the sliding window, drop the oldest attempt;
- * if the oldest attempt (highest bit in bitmap) shows "success",
- * subtract "1" from the success counter (this is the main reason
- * we keep these bitmaps!).
- */
- while (attempts > 0) {
- if (window->counter >= IWL_RATE_MAX_WINDOW) {
-
- /* remove earliest */
- window->counter = IWL_RATE_MAX_WINDOW - 1;
-
- if (window->data & mask) {
- window->data &= ~mask;
- window->success_counter--;
- }
- }
-
- /* Increment frames-attempted counter */
- window->counter++;
-
- /* Shift bitmap by one frame to throw away oldest history */
- window->data <<= 1;
-
- /* Mark the most recent #successes attempts as successful */
- if (successes > 0) {
- window->success_counter++;
- window->data |= 0x1;
- successes--;
- }
-
- attempts--;
- }
-
- /* Calculate current success ratio, avoid divide-by-0! */
- if (window->counter > 0)
- window->success_ratio = 128 * (100 * window->success_counter)
- / window->counter;
- else
- window->success_ratio = IWL_INVALID_VALUE;
-
- fail_count = window->counter - window->success_counter;
-
- /* Calculate average throughput, if we have enough history. */
- if ((fail_count >= IWL_RATE_MIN_FAILURE_TH) ||
- (window->success_counter >= IWL_RATE_MIN_SUCCESS_TH))
- window->average_tpt = (window->success_ratio * tpt + 64) / 128;
- else
- window->average_tpt = IWL_INVALID_VALUE;
-
- /* Tag this window as having been updated */
- window->stamp = jiffies;
-
- return 0;
-}
-
-/*
- * Fill uCode API rate_n_flags field, based on "search" or "active" table.
- */
-static u32 iwl4965_rate_n_flags_from_tbl(struct iwl_priv *priv,
- struct iwl_scale_tbl_info *tbl,
- int index, u8 use_green)
-{
- u32 rate_n_flags = 0;
-
- if (is_legacy(tbl->lq_type)) {
- rate_n_flags = iwlegacy_rates[index].plcp;
- if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
- rate_n_flags |= RATE_MCS_CCK_MSK;
-
- } else if (is_Ht(tbl->lq_type)) {
- if (index > IWL_LAST_OFDM_RATE) {
- IWL_ERR(priv, "Invalid HT rate index %d\n", index);
- index = IWL_LAST_OFDM_RATE;
- }
- rate_n_flags = RATE_MCS_HT_MSK;
-
- if (is_siso(tbl->lq_type))
- rate_n_flags |= iwlegacy_rates[index].plcp_siso;
- else
- rate_n_flags |= iwlegacy_rates[index].plcp_mimo2;
- } else {
- IWL_ERR(priv, "Invalid tbl->lq_type %d\n", tbl->lq_type);
- }
-
- rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
- RATE_MCS_ANT_ABC_MSK);
-
- if (is_Ht(tbl->lq_type)) {
- if (tbl->is_ht40) {
- if (tbl->is_dup)
- rate_n_flags |= RATE_MCS_DUP_MSK;
- else
- rate_n_flags |= RATE_MCS_HT40_MSK;
- }
- if (tbl->is_SGI)
- rate_n_flags |= RATE_MCS_SGI_MSK;
-
- if (use_green) {
- rate_n_flags |= RATE_MCS_GF_MSK;
- if (is_siso(tbl->lq_type) && tbl->is_SGI) {
- rate_n_flags &= ~RATE_MCS_SGI_MSK;
- IWL_ERR(priv, "GF was set with SGI:SISO\n");
- }
- }
- }
- return rate_n_flags;
-}
-
-/*
- * Interpret uCode API's rate_n_flags format,
- * fill "search" or "active" tx mode table.
- */
-static int iwl4965_rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
- enum ieee80211_band band,
- struct iwl_scale_tbl_info *tbl,
- int *rate_idx)
-{
- u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK);
- u8 iwl4965_num_of_ant = iwl4965_get_iwl4965_num_of_ant_from_rate(rate_n_flags);
- u8 mcs;
-
- memset(tbl, 0, sizeof(struct iwl_scale_tbl_info));
- *rate_idx = iwl4965_hwrate_to_plcp_idx(rate_n_flags);
-
- if (*rate_idx == IWL_RATE_INVALID) {
- *rate_idx = -1;
- return -EINVAL;
- }
- tbl->is_SGI = 0; /* default legacy setup */
- tbl->is_ht40 = 0;
- tbl->is_dup = 0;
- tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
- tbl->lq_type = LQ_NONE;
- tbl->max_search = IWL_MAX_SEARCH;
-
- /* legacy rate format */
- if (!(rate_n_flags & RATE_MCS_HT_MSK)) {
- if (iwl4965_num_of_ant == 1) {
- if (band == IEEE80211_BAND_5GHZ)
- tbl->lq_type = LQ_A;
- else
- tbl->lq_type = LQ_G;
- }
- /* HT rate format */
- } else {
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- tbl->is_SGI = 1;
-
- if ((rate_n_flags & RATE_MCS_HT40_MSK) ||
- (rate_n_flags & RATE_MCS_DUP_MSK))
- tbl->is_ht40 = 1;
-
- if (rate_n_flags & RATE_MCS_DUP_MSK)
- tbl->is_dup = 1;
-
- mcs = iwl4965_rs_extract_rate(rate_n_flags);
-
- /* SISO */
- if (mcs <= IWL_RATE_SISO_60M_PLCP) {
- if (iwl4965_num_of_ant == 1)
- tbl->lq_type = LQ_SISO; /*else NONE*/
- /* MIMO2 */
- } else {
- if (iwl4965_num_of_ant == 2)
- tbl->lq_type = LQ_MIMO2;
- }
- }
- return 0;
-}
-
-/* switch to another antenna/antennas and return 1 */
-/* if no other valid antenna found, return 0 */
-static int iwl4965_rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
- struct iwl_scale_tbl_info *tbl)
-{
- u8 new_ant_type;
-
- if (!tbl->ant_type || tbl->ant_type > ANT_ABC)
- return 0;
-
- if (!iwl4965_rs_is_valid_ant(valid_ant, tbl->ant_type))
- return 0;
-
- new_ant_type = ant_toggle_lookup[tbl->ant_type];
-
- while ((new_ant_type != tbl->ant_type) &&
- !iwl4965_rs_is_valid_ant(valid_ant, new_ant_type))
- new_ant_type = ant_toggle_lookup[new_ant_type];
-
- if (new_ant_type == tbl->ant_type)
- return 0;
-
- tbl->ant_type = new_ant_type;
- *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK;
- *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS;
- return 1;
-}
-
-/**
- * Green-field mode is valid if the station supports it and
- * there are no non-GF stations present in the BSS.
- */
-static bool iwl4965_rs_use_green(struct ieee80211_sta *sta)
-{
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- return (sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD) &&
- !(ctx->ht.non_gf_sta_present);
-}
-
-/**
- * iwl4965_rs_get_supported_rates - get the available rates
- *
- * if management frame or broadcast frame only return
- * basic available rates.
- *
- */
-static u16 iwl4965_rs_get_supported_rates(struct iwl_lq_sta *lq_sta,
- struct ieee80211_hdr *hdr,
- enum iwl_table_type rate_type)
-{
- if (is_legacy(rate_type)) {
- return lq_sta->active_legacy_rate;
- } else {
- if (is_siso(rate_type))
- return lq_sta->active_siso_rate;
- else
- return lq_sta->active_mimo2_rate;
- }
-}
-
-static u16
-iwl4965_rs_get_adjacent_rate(struct iwl_priv *priv, u8 index, u16 rate_mask,
- int rate_type)
-{
- u8 high = IWL_RATE_INVALID;
- u8 low = IWL_RATE_INVALID;
-
- /* 802.11A or ht walks to the next literal adjacent rate in
- * the rate table */
- if (is_a_band(rate_type) || !is_legacy(rate_type)) {
- int i;
- u32 mask;
-
- /* Find the previous rate that is in the rate mask */
- i = index - 1;
- for (mask = (1 << i); i >= 0; i--, mask >>= 1) {
- if (rate_mask & mask) {
- low = i;
- break;
- }
- }
-
- /* Find the next rate that is in the rate mask */
- i = index + 1;
- for (mask = (1 << i); i < IWL_RATE_COUNT; i++, mask <<= 1) {
- if (rate_mask & mask) {
- high = i;
- break;
- }
- }
-
- return (high << 8) | low;
- }
-
- low = index;
- while (low != IWL_RATE_INVALID) {
- low = iwlegacy_rates[low].prev_rs;
- if (low == IWL_RATE_INVALID)
- break;
- if (rate_mask & (1 << low))
- break;
- IWL_DEBUG_RATE(priv, "Skipping masked lower rate: %d\n", low);
- }
-
- high = index;
- while (high != IWL_RATE_INVALID) {
- high = iwlegacy_rates[high].next_rs;
- if (high == IWL_RATE_INVALID)
- break;
- if (rate_mask & (1 << high))
- break;
- IWL_DEBUG_RATE(priv, "Skipping masked higher rate: %d\n", high);
- }
-
- return (high << 8) | low;
-}
-
-static u32 iwl4965_rs_get_lower_rate(struct iwl_lq_sta *lq_sta,
- struct iwl_scale_tbl_info *tbl,
- u8 scale_index, u8 ht_possible)
-{
- s32 low;
- u16 rate_mask;
- u16 high_low;
- u8 switch_to_legacy = 0;
- u8 is_green = lq_sta->is_green;
- struct iwl_priv *priv = lq_sta->drv;
-
- /* check if we need to switch from HT to legacy rates.
- * assumption is that mandatory rates (1Mbps or 6Mbps)
- * are always supported (spec demand) */
- if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_index)) {
- switch_to_legacy = 1;
- scale_index = rs_ht_to_legacy[scale_index];
- if (lq_sta->band == IEEE80211_BAND_5GHZ)
- tbl->lq_type = LQ_A;
- else
- tbl->lq_type = LQ_G;
-
- if (iwl4965_num_of_ant(tbl->ant_type) > 1)
- tbl->ant_type =
- iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
-
- tbl->is_ht40 = 0;
- tbl->is_SGI = 0;
- tbl->max_search = IWL_MAX_SEARCH;
- }
-
- rate_mask = iwl4965_rs_get_supported_rates(lq_sta, NULL, tbl->lq_type);
-
- /* Mask with station rate restriction */
- if (is_legacy(tbl->lq_type)) {
- /* supp_rates has no CCK bits in A mode */
- if (lq_sta->band == IEEE80211_BAND_5GHZ)
- rate_mask = (u16)(rate_mask &
- (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE));
- else
- rate_mask = (u16)(rate_mask & lq_sta->supp_rates);
- }
-
- /* If we switched from HT to legacy, check current rate */
- if (switch_to_legacy && (rate_mask & (1 << scale_index))) {
- low = scale_index;
- goto out;
- }
-
- high_low = iwl4965_rs_get_adjacent_rate(lq_sta->drv,
- scale_index, rate_mask,
- tbl->lq_type);
- low = high_low & 0xff;
-
- if (low == IWL_RATE_INVALID)
- low = scale_index;
-
-out:
- return iwl4965_rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green);
-}
-
-/*
- * Simple function to compare two rate scale table types
- */
-static bool iwl4965_table_type_matches(struct iwl_scale_tbl_info *a,
- struct iwl_scale_tbl_info *b)
-{
- return (a->lq_type == b->lq_type) && (a->ant_type == b->ant_type) &&
- (a->is_SGI == b->is_SGI);
-}
-
-/*
- * mac80211 sends us Tx status
- */
-static void
-iwl4965_rs_tx_status(void *priv_r, struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta,
- struct sk_buff *skb)
-{
- int legacy_success;
- int retries;
- int rs_index, mac_index, i;
- struct iwl_lq_sta *lq_sta = priv_sta;
- struct iwl_link_quality_cmd *table;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct iwl_priv *priv = (struct iwl_priv *)priv_r;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- enum mac80211_rate_control_flags mac_flags;
- u32 tx_rate;
- struct iwl_scale_tbl_info tbl_type;
- struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl;
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- IWL_DEBUG_RATE_LIMIT(priv,
- "get frame ack response, update rate scale window\n");
-
- /* Treat uninitialized rate scaling data same as non-existing. */
- if (!lq_sta) {
- IWL_DEBUG_RATE(priv, "Station rate scaling not created yet.\n");
- return;
- } else if (!lq_sta->drv) {
- IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n");
- return;
- }
-
- if (!ieee80211_is_data(hdr->frame_control) ||
- info->flags & IEEE80211_TX_CTL_NO_ACK)
- return;
-
- /* This packet was aggregated but doesn't carry status info */
- if ((info->flags & IEEE80211_TX_CTL_AMPDU) &&
- !(info->flags & IEEE80211_TX_STAT_AMPDU))
- return;
-
- /*
- * Ignore this Tx frame response if its initial rate doesn't match
- * that of latest Link Quality command. There may be stragglers
- * from a previous Link Quality command, but we're no longer interested
- * in those; they're either from the "active" mode while we're trying
- * to check "search" mode, or a prior "search" mode after we've moved
- * to a new "search" mode (which might become the new "active" mode).
- */
- table = &lq_sta->lq;
- tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
- iwl4965_rs_get_tbl_info_from_mcs(tx_rate,
- priv->band, &tbl_type, &rs_index);
- if (priv->band == IEEE80211_BAND_5GHZ)
- rs_index -= IWL_FIRST_OFDM_RATE;
- mac_flags = info->status.rates[0].flags;
- mac_index = info->status.rates[0].idx;
- /* For HT packets, map MCS to PLCP */
- if (mac_flags & IEEE80211_TX_RC_MCS) {
- mac_index &= RATE_MCS_CODE_MSK; /* Remove # of streams */
- if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE))
- mac_index++;
- /*
- * mac80211 HT index is always zero-indexed; we need to move
- * HT OFDM rates after CCK rates in 2.4 GHz band
- */
- if (priv->band == IEEE80211_BAND_2GHZ)
- mac_index += IWL_FIRST_OFDM_RATE;
- }
- /* Here we actually compare this rate to the latest LQ command */
- if ((mac_index < 0) ||
- (tbl_type.is_SGI !=
- !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) ||
- (tbl_type.is_ht40 !=
- !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
- (tbl_type.is_dup !=
- !!(mac_flags & IEEE80211_TX_RC_DUP_DATA)) ||
- (tbl_type.ant_type != info->antenna_sel_tx) ||
- (!!(tx_rate & RATE_MCS_HT_MSK) !=
- !!(mac_flags & IEEE80211_TX_RC_MCS)) ||
- (!!(tx_rate & RATE_MCS_GF_MSK) !=
- !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
- (rs_index != mac_index)) {
- IWL_DEBUG_RATE(priv,
- "initial rate %d does not match %d (0x%x)\n",
- mac_index, rs_index, tx_rate);
- /*
- * Since rates mis-match, the last LQ command may have failed.
- * After IWL_MISSED_RATE_MAX mis-matches, resync the uCode with
- * ... driver.
- */
- lq_sta->missed_rate_counter++;
- if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) {
- lq_sta->missed_rate_counter = 0;
- iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq,
- CMD_ASYNC, false);
- }
- /* Regardless, ignore this status info for outdated rate */
- return;
- } else
- /* Rate did match, so reset the missed_rate_counter */
- lq_sta->missed_rate_counter = 0;
-
- /* Figure out if rate scale algorithm is in active or search table */
- if (iwl4965_table_type_matches(&tbl_type,
- &(lq_sta->lq_info[lq_sta->active_tbl]))) {
- curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- } else if (iwl4965_table_type_matches(&tbl_type,
- &lq_sta->lq_info[1 - lq_sta->active_tbl])) {
- curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- } else {
- IWL_DEBUG_RATE(priv,
- "Neither active nor search matches tx rate\n");
- tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- IWL_DEBUG_RATE(priv, "active- lq:%x, ant:%x, SGI:%d\n",
- tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI);
- tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]);
- IWL_DEBUG_RATE(priv, "search- lq:%x, ant:%x, SGI:%d\n",
- tmp_tbl->lq_type, tmp_tbl->ant_type, tmp_tbl->is_SGI);
- IWL_DEBUG_RATE(priv, "actual- lq:%x, ant:%x, SGI:%d\n",
- tbl_type.lq_type, tbl_type.ant_type, tbl_type.is_SGI);
- /*
- * no matching table found, let's by-pass the data collection
- * and continue to perform rate scale to find the rate table
- */
- iwl4965_rs_stay_in_table(lq_sta, true);
- goto done;
- }
-
- /*
- * Updating the frame history depends on whether packets were
- * aggregated.
- *
- * For aggregation, all packets were transmitted at the same rate, the
- * first index into rate scale table.
- */
- if (info->flags & IEEE80211_TX_STAT_AMPDU) {
- tx_rate = le32_to_cpu(table->rs_table[0].rate_n_flags);
- iwl4965_rs_get_tbl_info_from_mcs(tx_rate, priv->band, &tbl_type,
- &rs_index);
- iwl4965_rs_collect_tx_data(curr_tbl, rs_index,
- info->status.ampdu_len,
- info->status.ampdu_ack_len);
-
- /* Update success/fail counts if not searching for new mode */
- if (lq_sta->stay_in_tbl) {
- lq_sta->total_success += info->status.ampdu_ack_len;
- lq_sta->total_failed += (info->status.ampdu_len -
- info->status.ampdu_ack_len);
- }
- } else {
- /*
- * For legacy, update frame history with for each Tx retry.
- */
- retries = info->status.rates[0].count - 1;
- /* HW doesn't send more than 15 retries */
- retries = min(retries, 15);
-
- /* The last transmission may have been successful */
- legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK);
- /* Collect data for each rate used during failed TX attempts */
- for (i = 0; i <= retries; ++i) {
- tx_rate = le32_to_cpu(table->rs_table[i].rate_n_flags);
- iwl4965_rs_get_tbl_info_from_mcs(tx_rate, priv->band,
- &tbl_type, &rs_index);
- /*
- * Only collect stats if retried rate is in the same RS
- * table as active/search.
- */
- if (iwl4965_table_type_matches(&tbl_type, curr_tbl))
- tmp_tbl = curr_tbl;
- else if (iwl4965_table_type_matches(&tbl_type,
- other_tbl))
- tmp_tbl = other_tbl;
- else
- continue;
- iwl4965_rs_collect_tx_data(tmp_tbl, rs_index, 1,
- i < retries ? 0 : legacy_success);
- }
-
- /* Update success/fail counts if not searching for new mode */
- if (lq_sta->stay_in_tbl) {
- lq_sta->total_success += legacy_success;
- lq_sta->total_failed += retries + (1 - legacy_success);
- }
- }
- /* The last TX rate is cached in lq_sta; it's set in if/else above */
- lq_sta->last_rate_n_flags = tx_rate;
-done:
- /* See if there's a better rate or modulation mode to try. */
- if (sta && sta->supp_rates[sband->band])
- iwl4965_rs_rate_scale_perform(priv, skb, sta, lq_sta);
-}
-
-/*
- * Begin a period of staying with a selected modulation mode.
- * Set "stay_in_tbl" flag to prevent any mode switches.
- * Set frame tx success limits according to legacy vs. high-throughput,
- * and reset overall (spanning all rates) tx success history statistics.
- * These control how long we stay using same modulation mode before
- * searching for a new mode.
- */
-static void iwl4965_rs_set_stay_in_table(struct iwl_priv *priv, u8 is_legacy,
- struct iwl_lq_sta *lq_sta)
-{
- IWL_DEBUG_RATE(priv, "we are staying in the same table\n");
- lq_sta->stay_in_tbl = 1; /* only place this gets set */
- if (is_legacy) {
- lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT;
- lq_sta->max_failure_limit = IWL_LEGACY_FAILURE_LIMIT;
- lq_sta->max_success_limit = IWL_LEGACY_SUCCESS_LIMIT;
- } else {
- lq_sta->table_count_limit = IWL_NONE_LEGACY_TABLE_COUNT;
- lq_sta->max_failure_limit = IWL_NONE_LEGACY_FAILURE_LIMIT;
- lq_sta->max_success_limit = IWL_NONE_LEGACY_SUCCESS_LIMIT;
- }
- lq_sta->table_count = 0;
- lq_sta->total_failed = 0;
- lq_sta->total_success = 0;
- lq_sta->flush_timer = jiffies;
- lq_sta->action_counter = 0;
-}
-
-/*
- * Find correct throughput table for given mode of modulation
- */
-static void iwl4965_rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
- struct iwl_scale_tbl_info *tbl)
-{
- /* Used to choose among HT tables */
- s32 (*ht_tbl_pointer)[IWL_RATE_COUNT];
-
- /* Check for invalid LQ type */
- if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) {
- tbl->expected_tpt = expected_tpt_legacy;
- return;
- }
-
- /* Legacy rates have only one table */
- if (is_legacy(tbl->lq_type)) {
- tbl->expected_tpt = expected_tpt_legacy;
- return;
- }
-
- /* Choose among many HT tables depending on number of streams
- * (SISO/MIMO2), channel width (20/40), SGI, and aggregation
- * status */
- if (is_siso(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup))
- ht_tbl_pointer = expected_tpt_siso20MHz;
- else if (is_siso(tbl->lq_type))
- ht_tbl_pointer = expected_tpt_siso40MHz;
- else if (is_mimo2(tbl->lq_type) && (!tbl->is_ht40 || lq_sta->is_dup))
- ht_tbl_pointer = expected_tpt_mimo2_20MHz;
- else /* if (is_mimo2(tbl->lq_type)) <-- must be true */
- ht_tbl_pointer = expected_tpt_mimo2_40MHz;
-
- if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */
- tbl->expected_tpt = ht_tbl_pointer[0];
- else if (tbl->is_SGI && !lq_sta->is_agg) /* SGI */
- tbl->expected_tpt = ht_tbl_pointer[1];
- else if (!tbl->is_SGI && lq_sta->is_agg) /* AGG */
- tbl->expected_tpt = ht_tbl_pointer[2];
- else /* AGG+SGI */
- tbl->expected_tpt = ht_tbl_pointer[3];
-}
-
-/*
- * Find starting rate for new "search" high-throughput mode of modulation.
- * Goal is to find lowest expected rate (under perfect conditions) that is
- * above the current measured throughput of "active" mode, to give new mode
- * a fair chance to prove itself without too many challenges.
- *
- * This gets called when transitioning to more aggressive modulation
- * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive
- * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need
- * to decrease to match "active" throughput. When moving from MIMO to SISO,
- * bit rate will typically need to increase, but not if performance was bad.
- */
-static s32 iwl4965_rs_get_best_rate(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct iwl_scale_tbl_info *tbl, /* "search" */
- u16 rate_mask, s8 index)
-{
- /* "active" values */
- struct iwl_scale_tbl_info *active_tbl =
- &(lq_sta->lq_info[lq_sta->active_tbl]);
- s32 active_sr = active_tbl->win[index].success_ratio;
- s32 active_tpt = active_tbl->expected_tpt[index];
-
- /* expected "search" throughput */
- s32 *tpt_tbl = tbl->expected_tpt;
-
- s32 new_rate, high, low, start_hi;
- u16 high_low;
- s8 rate = index;
-
- new_rate = high = low = start_hi = IWL_RATE_INVALID;
-
- for (; ;) {
- high_low = iwl4965_rs_get_adjacent_rate(priv, rate, rate_mask,
- tbl->lq_type);
-
- low = high_low & 0xff;
- high = (high_low >> 8) & 0xff;
-
- /*
- * Lower the "search" bit rate, to give new "search" mode
- * approximately the same throughput as "active" if:
- *
- * 1) "Active" mode has been working modestly well (but not
- * great), and expected "search" throughput (under perfect
- * conditions) at candidate rate is above the actual
- * measured "active" throughput (but less than expected
- * "active" throughput under perfect conditions).
- * OR
- * 2) "Active" mode has been working perfectly or very well
- * and expected "search" throughput (under perfect
- * conditions) at candidate rate is above expected
- * "active" throughput (under perfect conditions).
- */
- if ((((100 * tpt_tbl[rate]) > lq_sta->last_tpt) &&
- ((active_sr > IWL_RATE_DECREASE_TH) &&
- (active_sr <= IWL_RATE_HIGH_TH) &&
- (tpt_tbl[rate] <= active_tpt))) ||
- ((active_sr >= IWL_RATE_SCALE_SWITCH) &&
- (tpt_tbl[rate] > active_tpt))) {
-
- /* (2nd or later pass)
- * If we've already tried to raise the rate, and are
- * now trying to lower it, use the higher rate. */
- if (start_hi != IWL_RATE_INVALID) {
- new_rate = start_hi;
- break;
- }
-
- new_rate = rate;
-
- /* Loop again with lower rate */
- if (low != IWL_RATE_INVALID)
- rate = low;
-
- /* Lower rate not available, use the original */
- else
- break;
-
- /* Else try to raise the "search" rate to match "active" */
- } else {
- /* (2nd or later pass)
- * If we've already tried to lower the rate, and are
- * now trying to raise it, use the lower rate. */
- if (new_rate != IWL_RATE_INVALID)
- break;
-
- /* Loop again with higher rate */
- else if (high != IWL_RATE_INVALID) {
- start_hi = high;
- rate = high;
-
- /* Higher rate not available, use the original */
- } else {
- new_rate = rate;
- break;
- }
- }
- }
-
- return new_rate;
-}
-
-/*
- * Set up search table for MIMO2
- */
-static int iwl4965_rs_switch_to_mimo2(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta,
- struct iwl_scale_tbl_info *tbl, int index)
-{
- u16 rate_mask;
- s32 rate;
- s8 is_green = lq_sta->is_green;
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
- return -1;
-
- if (((sta->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >> 2)
- == WLAN_HT_CAP_SM_PS_STATIC)
- return -1;
-
- /* Need both Tx chains/antennas to support MIMO */
- if (priv->hw_params.tx_chains_num < 2)
- return -1;
-
- IWL_DEBUG_RATE(priv, "LQ: try to switch to MIMO2\n");
-
- tbl->lq_type = LQ_MIMO2;
- tbl->is_dup = lq_sta->is_dup;
- tbl->action = 0;
- tbl->max_search = IWL_MAX_SEARCH;
- rate_mask = lq_sta->active_mimo2_rate;
-
- if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
- tbl->is_ht40 = 1;
- else
- tbl->is_ht40 = 0;
-
- iwl4965_rs_set_expected_tpt_table(lq_sta, tbl);
-
- rate = iwl4965_rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
-
- IWL_DEBUG_RATE(priv, "LQ: MIMO2 best rate %d mask %X\n",
- rate, rate_mask);
- if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_RATE(priv,
- "Can't switch with index %d rate mask %x\n",
- rate, rate_mask);
- return -1;
- }
- tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv,
- tbl, rate, is_green);
-
- IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n",
- tbl->current_rate, is_green);
- return 0;
-}
-
-/*
- * Set up search table for SISO
- */
-static int iwl4965_rs_switch_to_siso(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta,
- struct iwl_scale_tbl_info *tbl, int index)
-{
- u16 rate_mask;
- u8 is_green = lq_sta->is_green;
- s32 rate;
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- if (!conf_is_ht(conf) || !sta->ht_cap.ht_supported)
- return -1;
-
- IWL_DEBUG_RATE(priv, "LQ: try to switch to SISO\n");
-
- tbl->is_dup = lq_sta->is_dup;
- tbl->lq_type = LQ_SISO;
- tbl->action = 0;
- tbl->max_search = IWL_MAX_SEARCH;
- rate_mask = lq_sta->active_siso_rate;
-
- if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
- tbl->is_ht40 = 1;
- else
- tbl->is_ht40 = 0;
-
- if (is_green)
- tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
-
- iwl4965_rs_set_expected_tpt_table(lq_sta, tbl);
- rate = iwl4965_rs_get_best_rate(priv, lq_sta, tbl, rate_mask, index);
-
- IWL_DEBUG_RATE(priv, "LQ: get best rate %d mask %X\n", rate, rate_mask);
- if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) {
- IWL_DEBUG_RATE(priv,
- "can not switch with index %d rate mask %x\n",
- rate, rate_mask);
- return -1;
- }
- tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv,
- tbl, rate, is_green);
- IWL_DEBUG_RATE(priv, "LQ: Switch to new mcs %X index is green %X\n",
- tbl->current_rate, is_green);
- return 0;
-}
-
-/*
- * Try to switch to new modulation mode from legacy
- */
-static int iwl4965_rs_move_legacy_other(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta,
- int index)
-{
- struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
- &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
- struct iwl_rate_scale_data *window = &(tbl->win[index]);
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
- u8 start_action;
- u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
- u8 tx_chains_num = priv->hw_params.tx_chains_num;
- int ret = 0;
- u8 update_search_tbl_counter = 0;
-
- tbl->action = IWL_LEGACY_SWITCH_SISO;
-
- start_action = tbl->action;
- for (; ;) {
- lq_sta->action_counter++;
- switch (tbl->action) {
- case IWL_LEGACY_SWITCH_ANTENNA1:
- case IWL_LEGACY_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE(priv, "LQ: Legacy toggle Antenna\n");
-
- if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 &&
- tx_chains_num <= 1) ||
- (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 &&
- tx_chains_num <= 2))
- break;
-
- /* Don't change antenna if success has been great */
- if (window->success_ratio >= IWL_RS_GOOD_RATIO)
- break;
-
- /* Set up search table to try other antenna */
- memcpy(search_tbl, tbl, sz);
-
- if (iwl4965_rs_toggle_antenna(valid_tx_ant,
- &search_tbl->current_rate, search_tbl)) {
- update_search_tbl_counter = 1;
- iwl4965_rs_set_expected_tpt_table(lq_sta,
- search_tbl);
- goto out;
- }
- break;
- case IWL_LEGACY_SWITCH_SISO:
- IWL_DEBUG_RATE(priv, "LQ: Legacy switch to SISO\n");
-
- /* Set up search table to try SISO */
- memcpy(search_tbl, tbl, sz);
- search_tbl->is_SGI = 0;
- ret = iwl4965_rs_switch_to_siso(priv, lq_sta, conf, sta,
- search_tbl, index);
- if (!ret) {
- lq_sta->action_counter = 0;
- goto out;
- }
-
- break;
- case IWL_LEGACY_SWITCH_MIMO2_AB:
- case IWL_LEGACY_SWITCH_MIMO2_AC:
- case IWL_LEGACY_SWITCH_MIMO2_BC:
- IWL_DEBUG_RATE(priv, "LQ: Legacy switch to MIMO2\n");
-
- /* Set up search table to try MIMO */
- memcpy(search_tbl, tbl, sz);
- search_tbl->is_SGI = 0;
-
- if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AB)
- search_tbl->ant_type = ANT_AB;
- else if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AC)
- search_tbl->ant_type = ANT_AC;
- else
- search_tbl->ant_type = ANT_BC;
-
- if (!iwl4965_rs_is_valid_ant(valid_tx_ant,
- search_tbl->ant_type))
- break;
-
- ret = iwl4965_rs_switch_to_mimo2(priv, lq_sta,
- conf, sta,
- search_tbl, index);
- if (!ret) {
- lq_sta->action_counter = 0;
- goto out;
- }
- break;
- }
- tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
- tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
-
- if (tbl->action == start_action)
- break;
-
- }
- search_tbl->lq_type = LQ_NONE;
- return 0;
-
-out:
- lq_sta->search_better_tbl = 1;
- tbl->action++;
- if (tbl->action > IWL_LEGACY_SWITCH_MIMO2_BC)
- tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
- if (update_search_tbl_counter)
- search_tbl->action = tbl->action;
- return 0;
-
-}
-
-/*
- * Try to switch to new modulation mode from SISO
- */
-static int iwl4965_rs_move_siso_to_other(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta, int index)
-{
- u8 is_green = lq_sta->is_green;
- struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
- &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
- struct iwl_rate_scale_data *window = &(tbl->win[index]);
- struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
- u8 start_action;
- u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
- u8 tx_chains_num = priv->hw_params.tx_chains_num;
- u8 update_search_tbl_counter = 0;
- int ret;
-
- start_action = tbl->action;
-
- for (;;) {
- lq_sta->action_counter++;
- switch (tbl->action) {
- case IWL_SISO_SWITCH_ANTENNA1:
- case IWL_SISO_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE(priv, "LQ: SISO toggle Antenna\n");
- if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 &&
- tx_chains_num <= 1) ||
- (tbl->action == IWL_SISO_SWITCH_ANTENNA2 &&
- tx_chains_num <= 2))
- break;
-
- if (window->success_ratio >= IWL_RS_GOOD_RATIO)
- break;
-
- memcpy(search_tbl, tbl, sz);
- if (iwl4965_rs_toggle_antenna(valid_tx_ant,
- &search_tbl->current_rate, search_tbl)) {
- update_search_tbl_counter = 1;
- goto out;
- }
- break;
- case IWL_SISO_SWITCH_MIMO2_AB:
- case IWL_SISO_SWITCH_MIMO2_AC:
- case IWL_SISO_SWITCH_MIMO2_BC:
- IWL_DEBUG_RATE(priv, "LQ: SISO switch to MIMO2\n");
- memcpy(search_tbl, tbl, sz);
- search_tbl->is_SGI = 0;
-
- if (tbl->action == IWL_SISO_SWITCH_MIMO2_AB)
- search_tbl->ant_type = ANT_AB;
- else if (tbl->action == IWL_SISO_SWITCH_MIMO2_AC)
- search_tbl->ant_type = ANT_AC;
- else
- search_tbl->ant_type = ANT_BC;
-
- if (!iwl4965_rs_is_valid_ant(valid_tx_ant,
- search_tbl->ant_type))
- break;
-
- ret = iwl4965_rs_switch_to_mimo2(priv, lq_sta,
- conf, sta,
- search_tbl, index);
- if (!ret)
- goto out;
- break;
- case IWL_SISO_SWITCH_GI:
- if (!tbl->is_ht40 && !(ht_cap->cap &
- IEEE80211_HT_CAP_SGI_20))
- break;
- if (tbl->is_ht40 && !(ht_cap->cap &
- IEEE80211_HT_CAP_SGI_40))
- break;
-
- IWL_DEBUG_RATE(priv, "LQ: SISO toggle SGI/NGI\n");
-
- memcpy(search_tbl, tbl, sz);
- if (is_green) {
- if (!tbl->is_SGI)
- break;
- else
- IWL_ERR(priv,
- "SGI was set in GF+SISO\n");
- }
- search_tbl->is_SGI = !tbl->is_SGI;
- iwl4965_rs_set_expected_tpt_table(lq_sta, search_tbl);
- if (tbl->is_SGI) {
- s32 tpt = lq_sta->last_tpt / 100;
- if (tpt >= search_tbl->expected_tpt[index])
- break;
- }
- search_tbl->current_rate =
- iwl4965_rate_n_flags_from_tbl(priv, search_tbl,
- index, is_green);
- update_search_tbl_counter = 1;
- goto out;
- }
- tbl->action++;
- if (tbl->action > IWL_SISO_SWITCH_GI)
- tbl->action = IWL_SISO_SWITCH_ANTENNA1;
-
- if (tbl->action == start_action)
- break;
- }
- search_tbl->lq_type = LQ_NONE;
- return 0;
-
- out:
- lq_sta->search_better_tbl = 1;
- tbl->action++;
- if (tbl->action > IWL_SISO_SWITCH_GI)
- tbl->action = IWL_SISO_SWITCH_ANTENNA1;
- if (update_search_tbl_counter)
- search_tbl->action = tbl->action;
-
- return 0;
-}
-
-/*
- * Try to switch to new modulation mode from MIMO2
- */
-static int iwl4965_rs_move_mimo2_to_other(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta, int index)
-{
- s8 is_green = lq_sta->is_green;
- struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- struct iwl_scale_tbl_info *search_tbl =
- &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
- struct iwl_rate_scale_data *window = &(tbl->win[index]);
- struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
- u32 sz = (sizeof(struct iwl_scale_tbl_info) -
- (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
- u8 start_action;
- u8 valid_tx_ant = priv->hw_params.valid_tx_ant;
- u8 tx_chains_num = priv->hw_params.tx_chains_num;
- u8 update_search_tbl_counter = 0;
- int ret;
-
- start_action = tbl->action;
- for (;;) {
- lq_sta->action_counter++;
- switch (tbl->action) {
- case IWL_MIMO2_SWITCH_ANTENNA1:
- case IWL_MIMO2_SWITCH_ANTENNA2:
- IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle Antennas\n");
-
- if (tx_chains_num <= 2)
- break;
-
- if (window->success_ratio >= IWL_RS_GOOD_RATIO)
- break;
-
- memcpy(search_tbl, tbl, sz);
- if (iwl4965_rs_toggle_antenna(valid_tx_ant,
- &search_tbl->current_rate, search_tbl)) {
- update_search_tbl_counter = 1;
- goto out;
- }
- break;
- case IWL_MIMO2_SWITCH_SISO_A:
- case IWL_MIMO2_SWITCH_SISO_B:
- case IWL_MIMO2_SWITCH_SISO_C:
- IWL_DEBUG_RATE(priv, "LQ: MIMO2 switch to SISO\n");
-
- /* Set up new search table for SISO */
- memcpy(search_tbl, tbl, sz);
-
- if (tbl->action == IWL_MIMO2_SWITCH_SISO_A)
- search_tbl->ant_type = ANT_A;
- else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B)
- search_tbl->ant_type = ANT_B;
- else
- search_tbl->ant_type = ANT_C;
-
- if (!iwl4965_rs_is_valid_ant(valid_tx_ant,
- search_tbl->ant_type))
- break;
-
- ret = iwl4965_rs_switch_to_siso(priv, lq_sta,
- conf, sta,
- search_tbl, index);
- if (!ret)
- goto out;
-
- break;
-
- case IWL_MIMO2_SWITCH_GI:
- if (!tbl->is_ht40 && !(ht_cap->cap &
- IEEE80211_HT_CAP_SGI_20))
- break;
- if (tbl->is_ht40 && !(ht_cap->cap &
- IEEE80211_HT_CAP_SGI_40))
- break;
-
- IWL_DEBUG_RATE(priv, "LQ: MIMO2 toggle SGI/NGI\n");
-
- /* Set up new search table for MIMO2 */
- memcpy(search_tbl, tbl, sz);
- search_tbl->is_SGI = !tbl->is_SGI;
- iwl4965_rs_set_expected_tpt_table(lq_sta, search_tbl);
- /*
- * If active table already uses the fastest possible
- * modulation (dual stream with short guard interval),
- * and it's working well, there's no need to look
- * for a better type of modulation!
- */
- if (tbl->is_SGI) {
- s32 tpt = lq_sta->last_tpt / 100;
- if (tpt >= search_tbl->expected_tpt[index])
- break;
- }
- search_tbl->current_rate =
- iwl4965_rate_n_flags_from_tbl(priv, search_tbl,
- index, is_green);
- update_search_tbl_counter = 1;
- goto out;
-
- }
- tbl->action++;
- if (tbl->action > IWL_MIMO2_SWITCH_GI)
- tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
-
- if (tbl->action == start_action)
- break;
- }
- search_tbl->lq_type = LQ_NONE;
- return 0;
- out:
- lq_sta->search_better_tbl = 1;
- tbl->action++;
- if (tbl->action > IWL_MIMO2_SWITCH_GI)
- tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
- if (update_search_tbl_counter)
- search_tbl->action = tbl->action;
-
- return 0;
-
-}
-
-/*
- * Check whether we should continue using same modulation mode, or
- * begin search for a new mode, based on:
- * 1) # tx successes or failures while using this mode
- * 2) # times calling this function
- * 3) elapsed time in this mode (not used, for now)
- */
-static void
-iwl4965_rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
-{
- struct iwl_scale_tbl_info *tbl;
- int i;
- int active_tbl;
- int flush_interval_passed = 0;
- struct iwl_priv *priv;
-
- priv = lq_sta->drv;
- active_tbl = lq_sta->active_tbl;
-
- tbl = &(lq_sta->lq_info[active_tbl]);
-
- /* If we've been disallowing search, see if we should now allow it */
- if (lq_sta->stay_in_tbl) {
-
- /* Elapsed time using current modulation mode */
- if (lq_sta->flush_timer)
- flush_interval_passed =
- time_after(jiffies,
- (unsigned long)(lq_sta->flush_timer +
- IWL_RATE_SCALE_FLUSH_INTVL));
-
- /*
- * Check if we should allow search for new modulation mode.
- * If many frames have failed or succeeded, or we've used
- * this same modulation for a long time, allow search, and
- * reset history stats that keep track of whether we should
- * allow a new search. Also (below) reset all bitmaps and
- * stats in active history.
- */
- if (force_search ||
- (lq_sta->total_failed > lq_sta->max_failure_limit) ||
- (lq_sta->total_success > lq_sta->max_success_limit) ||
- ((!lq_sta->search_better_tbl) && (lq_sta->flush_timer)
- && (flush_interval_passed))) {
- IWL_DEBUG_RATE(priv, "LQ: stay is expired %d %d %d\n:",
- lq_sta->total_failed,
- lq_sta->total_success,
- flush_interval_passed);
-
- /* Allow search for new mode */
- lq_sta->stay_in_tbl = 0; /* only place reset */
- lq_sta->total_failed = 0;
- lq_sta->total_success = 0;
- lq_sta->flush_timer = 0;
-
- /*
- * Else if we've used this modulation mode enough repetitions
- * (regardless of elapsed time or success/failure), reset
- * history bitmaps and rate-specific stats for all rates in
- * active table.
- */
- } else {
- lq_sta->table_count++;
- if (lq_sta->table_count >=
- lq_sta->table_count_limit) {
- lq_sta->table_count = 0;
-
- IWL_DEBUG_RATE(priv,
- "LQ: stay in table clear win\n");
- for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl4965_rs_rate_scale_clear_window(
- &(tbl->win[i]));
- }
- }
-
- /* If transitioning to allow "search", reset all history
- * bitmaps and stats in active table (this will become the new
- * "search" table). */
- if (!lq_sta->stay_in_tbl) {
- for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl4965_rs_rate_scale_clear_window(
- &(tbl->win[i]));
- }
- }
-}
-
-/*
- * setup rate table in uCode
- * return rate_n_flags as used in the table
- */
-static u32 iwl4965_rs_update_rate_tbl(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct iwl_lq_sta *lq_sta,
- struct iwl_scale_tbl_info *tbl,
- int index, u8 is_green)
-{
- u32 rate;
-
- /* Update uCode's rate table. */
- rate = iwl4965_rate_n_flags_from_tbl(priv, tbl, index, is_green);
- iwl4965_rs_fill_link_cmd(priv, lq_sta, rate);
- iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_ASYNC, false);
-
- return rate;
-}
-
-/*
- * Do rate scaling and search for new modulation mode.
- */
-static void iwl4965_rs_rate_scale_perform(struct iwl_priv *priv,
- struct sk_buff *skb,
- struct ieee80211_sta *sta,
- struct iwl_lq_sta *lq_sta)
-{
- struct ieee80211_hw *hw = priv->hw;
- struct ieee80211_conf *conf = &hw->conf;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- int low = IWL_RATE_INVALID;
- int high = IWL_RATE_INVALID;
- int index;
- int i;
- struct iwl_rate_scale_data *window = NULL;
- int current_tpt = IWL_INVALID_VALUE;
- int low_tpt = IWL_INVALID_VALUE;
- int high_tpt = IWL_INVALID_VALUE;
- u32 fail_count;
- s8 scale_action = 0;
- u16 rate_mask;
- u8 update_lq = 0;
- struct iwl_scale_tbl_info *tbl, *tbl1;
- u16 rate_scale_index_msk = 0;
- u32 rate;
- u8 is_green = 0;
- u8 active_tbl = 0;
- u8 done_search = 0;
- u16 high_low;
- s32 sr;
- u8 tid = MAX_TID_COUNT;
- struct iwl_tid_data *tid_data;
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- IWL_DEBUG_RATE(priv, "rate scale calculate new rate for skb\n");
-
- /* Send management frames and NO_ACK data using lowest rate. */
- /* TODO: this could probably be improved.. */
- if (!ieee80211_is_data(hdr->frame_control) ||
- info->flags & IEEE80211_TX_CTL_NO_ACK)
- return;
-
- if (!sta || !lq_sta)
- return;
-
- lq_sta->supp_rates = sta->supp_rates[lq_sta->band];
-
- tid = iwl4965_rs_tl_add_packet(lq_sta, hdr);
- if ((tid != MAX_TID_COUNT) && (lq_sta->tx_agg_tid_en & (1 << tid))) {
- tid_data = &priv->stations[lq_sta->lq.sta_id].tid[tid];
- if (tid_data->agg.state == IWL_AGG_OFF)
- lq_sta->is_agg = 0;
- else
- lq_sta->is_agg = 1;
- } else
- lq_sta->is_agg = 0;
-
- /*
- * Select rate-scale / modulation-mode table to work with in
- * the rest of this function: "search" if searching for better
- * modulation mode, or "active" if doing rate scaling within a mode.
- */
- if (!lq_sta->search_better_tbl)
- active_tbl = lq_sta->active_tbl;
- else
- active_tbl = 1 - lq_sta->active_tbl;
-
- tbl = &(lq_sta->lq_info[active_tbl]);
- if (is_legacy(tbl->lq_type))
- lq_sta->is_green = 0;
- else
- lq_sta->is_green = iwl4965_rs_use_green(sta);
- is_green = lq_sta->is_green;
-
- /* current tx rate */
- index = lq_sta->last_txrate_idx;
-
- IWL_DEBUG_RATE(priv, "Rate scale index %d for type %d\n", index,
- tbl->lq_type);
-
- /* rates available for this association, and for modulation mode */
- rate_mask = iwl4965_rs_get_supported_rates(lq_sta, hdr, tbl->lq_type);
-
- IWL_DEBUG_RATE(priv, "mask 0x%04X\n", rate_mask);
-
- /* mask with station rate restriction */
- if (is_legacy(tbl->lq_type)) {
- if (lq_sta->band == IEEE80211_BAND_5GHZ)
- /* supp_rates has no CCK bits in A mode */
- rate_scale_index_msk = (u16) (rate_mask &
- (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE));
- else
- rate_scale_index_msk = (u16) (rate_mask &
- lq_sta->supp_rates);
-
- } else
- rate_scale_index_msk = rate_mask;
-
- if (!rate_scale_index_msk)
- rate_scale_index_msk = rate_mask;
-
- if (!((1 << index) & rate_scale_index_msk)) {
- IWL_ERR(priv, "Current Rate is not valid\n");
- if (lq_sta->search_better_tbl) {
- /* revert to active table if search table is not valid*/
- tbl->lq_type = LQ_NONE;
- lq_sta->search_better_tbl = 0;
- tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
- /* get "active" rate info */
- index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate);
- rate = iwl4965_rs_update_rate_tbl(priv, ctx, lq_sta,
- tbl, index, is_green);
- }
- return;
- }
-
- /* Get expected throughput table and history window for current rate */
- if (!tbl->expected_tpt) {
- IWL_ERR(priv, "tbl->expected_tpt is NULL\n");
- return;
- }
-
- /* force user max rate if set by user */
- if ((lq_sta->max_rate_idx != -1) &&
- (lq_sta->max_rate_idx < index)) {
- index = lq_sta->max_rate_idx;
- update_lq = 1;
- window = &(tbl->win[index]);
- goto lq_update;
- }
-
- window = &(tbl->win[index]);
-
- /*
- * If there is not enough history to calculate actual average
- * throughput, keep analyzing results of more tx frames, without
- * changing rate or mode (bypass most of the rest of this function).
- * Set up new rate table in uCode only if old rate is not supported
- * in current association (use new rate found above).
- */
- fail_count = window->counter - window->success_counter;
- if ((fail_count < IWL_RATE_MIN_FAILURE_TH) &&
- (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) {
- IWL_DEBUG_RATE(priv, "LQ: still below TH. succ=%d total=%d "
- "for index %d\n",
- window->success_counter, window->counter, index);
-
- /* Can't calculate this yet; not enough history */
- window->average_tpt = IWL_INVALID_VALUE;
-
- /* Should we stay with this modulation mode,
- * or search for a new one? */
- iwl4965_rs_stay_in_table(lq_sta, false);
-
- goto out;
- }
- /* Else we have enough samples; calculate estimate of
- * actual average throughput */
- if (window->average_tpt != ((window->success_ratio *
- tbl->expected_tpt[index] + 64) / 128)) {
- IWL_ERR(priv,
- "expected_tpt should have been calculated by now\n");
- window->average_tpt = ((window->success_ratio *
- tbl->expected_tpt[index] + 64) / 128);
- }
-
- /* If we are searching for better modulation mode, check success. */
- if (lq_sta->search_better_tbl) {
- /* If good success, continue using the "search" mode;
- * no need to send new link quality command, since we're
- * continuing to use the setup that we've been trying. */
- if (window->average_tpt > lq_sta->last_tpt) {
-
- IWL_DEBUG_RATE(priv, "LQ: SWITCHING TO NEW TABLE "
- "suc=%d cur-tpt=%d old-tpt=%d\n",
- window->success_ratio,
- window->average_tpt,
- lq_sta->last_tpt);
-
- if (!is_legacy(tbl->lq_type))
- lq_sta->enable_counter = 1;
-
- /* Swap tables; "search" becomes "active" */
- lq_sta->active_tbl = active_tbl;
- current_tpt = window->average_tpt;
-
- /* Else poor success; go back to mode in "active" table */
- } else {
-
- IWL_DEBUG_RATE(priv, "LQ: GOING BACK TO THE OLD TABLE "
- "suc=%d cur-tpt=%d old-tpt=%d\n",
- window->success_ratio,
- window->average_tpt,
- lq_sta->last_tpt);
-
- /* Nullify "search" table */
- tbl->lq_type = LQ_NONE;
-
- /* Revert to "active" table */
- active_tbl = lq_sta->active_tbl;
- tbl = &(lq_sta->lq_info[active_tbl]);
-
- /* Revert to "active" rate and throughput info */
- index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate);
- current_tpt = lq_sta->last_tpt;
-
- /* Need to set up a new rate table in uCode */
- update_lq = 1;
- }
-
- /* Either way, we've made a decision; modulation mode
- * search is done, allow rate adjustment next time. */
- lq_sta->search_better_tbl = 0;
- done_search = 1; /* Don't switch modes below! */
- goto lq_update;
- }
-
- /* (Else) not in search of better modulation mode, try for better
- * starting rate, while staying in this mode. */
- high_low = iwl4965_rs_get_adjacent_rate(priv, index,
- rate_scale_index_msk,
- tbl->lq_type);
- low = high_low & 0xff;
- high = (high_low >> 8) & 0xff;
-
- /* If user set max rate, dont allow higher than user constrain */
- if ((lq_sta->max_rate_idx != -1) &&
- (lq_sta->max_rate_idx < high))
- high = IWL_RATE_INVALID;
-
- sr = window->success_ratio;
-
- /* Collect measured throughputs for current and adjacent rates */
- current_tpt = window->average_tpt;
- if (low != IWL_RATE_INVALID)
- low_tpt = tbl->win[low].average_tpt;
- if (high != IWL_RATE_INVALID)
- high_tpt = tbl->win[high].average_tpt;
-
- scale_action = 0;
-
- /* Too many failures, decrease rate */
- if ((sr <= IWL_RATE_DECREASE_TH) || (current_tpt == 0)) {
- IWL_DEBUG_RATE(priv,
- "decrease rate because of low success_ratio\n");
- scale_action = -1;
-
- /* No throughput measured yet for adjacent rates; try increase. */
- } else if ((low_tpt == IWL_INVALID_VALUE) &&
- (high_tpt == IWL_INVALID_VALUE)) {
-
- if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH)
- scale_action = 1;
- else if (low != IWL_RATE_INVALID)
- scale_action = 0;
- }
-
- /* Both adjacent throughputs are measured, but neither one has better
- * throughput; we're using the best rate, don't change it! */
- else if ((low_tpt != IWL_INVALID_VALUE) &&
- (high_tpt != IWL_INVALID_VALUE) &&
- (low_tpt < current_tpt) &&
- (high_tpt < current_tpt))
- scale_action = 0;
-
- /* At least one adjacent rate's throughput is measured,
- * and may have better performance. */
- else {
- /* Higher adjacent rate's throughput is measured */
- if (high_tpt != IWL_INVALID_VALUE) {
- /* Higher rate has better throughput */
- if (high_tpt > current_tpt &&
- sr >= IWL_RATE_INCREASE_TH) {
- scale_action = 1;
- } else {
- scale_action = 0;
- }
-
- /* Lower adjacent rate's throughput is measured */
- } else if (low_tpt != IWL_INVALID_VALUE) {
- /* Lower rate has better throughput */
- if (low_tpt > current_tpt) {
- IWL_DEBUG_RATE(priv,
- "decrease rate because of low tpt\n");
- scale_action = -1;
- } else if (sr >= IWL_RATE_INCREASE_TH) {
- scale_action = 1;
- }
- }
- }
-
- /* Sanity check; asked for decrease, but success rate or throughput
- * has been good at old rate. Don't change it. */
- if ((scale_action == -1) && (low != IWL_RATE_INVALID) &&
- ((sr > IWL_RATE_HIGH_TH) ||
- (current_tpt > (100 * tbl->expected_tpt[low]))))
- scale_action = 0;
-
- switch (scale_action) {
- case -1:
- /* Decrease starting rate, update uCode's rate table */
- if (low != IWL_RATE_INVALID) {
- update_lq = 1;
- index = low;
- }
-
- break;
- case 1:
- /* Increase starting rate, update uCode's rate table */
- if (high != IWL_RATE_INVALID) {
- update_lq = 1;
- index = high;
- }
-
- break;
- case 0:
- /* No change */
- default:
- break;
- }
-
- IWL_DEBUG_RATE(priv, "choose rate scale index %d action %d low %d "
- "high %d type %d\n",
- index, scale_action, low, high, tbl->lq_type);
-
-lq_update:
- /* Replace uCode's rate table for the destination station. */
- if (update_lq)
- rate = iwl4965_rs_update_rate_tbl(priv, ctx, lq_sta,
- tbl, index, is_green);
-
- /* Should we stay with this modulation mode,
- * or search for a new one? */
- iwl4965_rs_stay_in_table(lq_sta, false);
-
- /*
- * Search for new modulation mode if we're:
- * 1) Not changing rates right now
- * 2) Not just finishing up a search
- * 3) Allowing a new search
- */
- if (!update_lq && !done_search &&
- !lq_sta->stay_in_tbl && window->counter) {
- /* Save current throughput to compare with "search" throughput*/
- lq_sta->last_tpt = current_tpt;
-
- /* Select a new "search" modulation mode to try.
- * If one is found, set up the new "search" table. */
- if (is_legacy(tbl->lq_type))
- iwl4965_rs_move_legacy_other(priv, lq_sta,
- conf, sta, index);
- else if (is_siso(tbl->lq_type))
- iwl4965_rs_move_siso_to_other(priv, lq_sta,
- conf, sta, index);
- else /* (is_mimo2(tbl->lq_type)) */
- iwl4965_rs_move_mimo2_to_other(priv, lq_sta,
- conf, sta, index);
-
- /* If new "search" mode was selected, set up in uCode table */
- if (lq_sta->search_better_tbl) {
- /* Access the "search" table, clear its history. */
- tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
- for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl4965_rs_rate_scale_clear_window(
- &(tbl->win[i]));
-
- /* Use new "search" start rate */
- index = iwl4965_hwrate_to_plcp_idx(tbl->current_rate);
-
- IWL_DEBUG_RATE(priv,
- "Switch current mcs: %X index: %d\n",
- tbl->current_rate, index);
- iwl4965_rs_fill_link_cmd(priv, lq_sta,
- tbl->current_rate);
- iwl_legacy_send_lq_cmd(priv, ctx,
- &lq_sta->lq, CMD_ASYNC, false);
- } else
- done_search = 1;
- }
-
- if (done_search && !lq_sta->stay_in_tbl) {
- /* If the "active" (non-search) mode was legacy,
- * and we've tried switching antennas,
- * but we haven't been able to try HT modes (not available),
- * stay with best antenna legacy modulation for a while
- * before next round of mode comparisons. */
- tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]);
- if (is_legacy(tbl1->lq_type) && !conf_is_ht(conf) &&
- lq_sta->action_counter > tbl1->max_search) {
- IWL_DEBUG_RATE(priv, "LQ: STAY in legacy table\n");
- iwl4965_rs_set_stay_in_table(priv, 1, lq_sta);
- }
-
- /* If we're in an HT mode, and all 3 mode switch actions
- * have been tried and compared, stay in this best modulation
- * mode for a while before next round of mode comparisons. */
- if (lq_sta->enable_counter &&
- (lq_sta->action_counter >= tbl1->max_search)) {
- if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) &&
- (lq_sta->tx_agg_tid_en & (1 << tid)) &&
- (tid != MAX_TID_COUNT)) {
- tid_data =
- &priv->stations[lq_sta->lq.sta_id].tid[tid];
- if (tid_data->agg.state == IWL_AGG_OFF) {
- IWL_DEBUG_RATE(priv,
- "try to aggregate tid %d\n",
- tid);
- iwl4965_rs_tl_turn_on_agg(priv, tid,
- lq_sta, sta);
- }
- }
- iwl4965_rs_set_stay_in_table(priv, 0, lq_sta);
- }
- }
-
-out:
- tbl->current_rate = iwl4965_rate_n_flags_from_tbl(priv, tbl,
- index, is_green);
- i = index;
- lq_sta->last_txrate_idx = i;
-}
-
-/**
- * iwl4965_rs_initialize_lq - Initialize a station's hardware rate table
- *
- * The uCode's station table contains a table of fallback rates
- * for automatic fallback during transmission.
- *
- * NOTE: This sets up a default set of values. These will be replaced later
- * if the driver's iwl-4965-rs rate scaling algorithm is used, instead of
- * rc80211_simple.
- *
- * NOTE: Run REPLY_ADD_STA command to set up station table entry, before
- * calling this function (which runs REPLY_TX_LINK_QUALITY_CMD,
- * which requires station table entry to exist).
- */
-static void iwl4965_rs_initialize_lq(struct iwl_priv *priv,
- struct ieee80211_conf *conf,
- struct ieee80211_sta *sta,
- struct iwl_lq_sta *lq_sta)
-{
- struct iwl_scale_tbl_info *tbl;
- int rate_idx;
- int i;
- u32 rate;
- u8 use_green = iwl4965_rs_use_green(sta);
- u8 active_tbl = 0;
- u8 valid_tx_ant;
- struct iwl_station_priv *sta_priv;
- struct iwl_rxon_context *ctx;
-
- if (!sta || !lq_sta)
- return;
-
- sta_priv = (void *)sta->drv_priv;
- ctx = sta_priv->common.ctx;
-
- i = lq_sta->last_txrate_idx;
-
- valid_tx_ant = priv->hw_params.valid_tx_ant;
-
- if (!lq_sta->search_better_tbl)
- active_tbl = lq_sta->active_tbl;
- else
- active_tbl = 1 - lq_sta->active_tbl;
-
- tbl = &(lq_sta->lq_info[active_tbl]);
-
- if ((i < 0) || (i >= IWL_RATE_COUNT))
- i = 0;
-
- rate = iwlegacy_rates[i].plcp;
- tbl->ant_type = iwl4965_first_antenna(valid_tx_ant);
- rate |= tbl->ant_type << RATE_MCS_ANT_POS;
-
- if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE)
- rate |= RATE_MCS_CCK_MSK;
-
- iwl4965_rs_get_tbl_info_from_mcs(rate, priv->band, tbl, &rate_idx);
- if (!iwl4965_rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
- iwl4965_rs_toggle_antenna(valid_tx_ant, &rate, tbl);
-
- rate = iwl4965_rate_n_flags_from_tbl(priv, tbl, rate_idx, use_green);
- tbl->current_rate = rate;
- iwl4965_rs_set_expected_tpt_table(lq_sta, tbl);
- iwl4965_rs_fill_link_cmd(NULL, lq_sta, rate);
- priv->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq;
- iwl_legacy_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_SYNC, true);
-}
-
-static void
-iwl4965_rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta,
- struct ieee80211_tx_rate_control *txrc)
-{
-
- struct sk_buff *skb = txrc->skb;
- struct ieee80211_supported_band *sband = txrc->sband;
- struct iwl_priv *priv __maybe_unused = (struct iwl_priv *)priv_r;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct iwl_lq_sta *lq_sta = priv_sta;
- int rate_idx;
-
- IWL_DEBUG_RATE_LIMIT(priv, "rate scale calculate new rate for skb\n");
-
- /* Get max rate if user set max rate */
- if (lq_sta) {
- lq_sta->max_rate_idx = txrc->max_rate_idx;
- if ((sband->band == IEEE80211_BAND_5GHZ) &&
- (lq_sta->max_rate_idx != -1))
- lq_sta->max_rate_idx += IWL_FIRST_OFDM_RATE;
- if ((lq_sta->max_rate_idx < 0) ||
- (lq_sta->max_rate_idx >= IWL_RATE_COUNT))
- lq_sta->max_rate_idx = -1;
- }
-
- /* Treat uninitialized rate scaling data same as non-existing. */
- if (lq_sta && !lq_sta->drv) {
- IWL_DEBUG_RATE(priv, "Rate scaling not initialized yet.\n");
- priv_sta = NULL;
- }
-
- /* Send management frames and NO_ACK data using lowest rate. */
- if (rate_control_send_low(sta, priv_sta, txrc))
- return;
-
- if (!lq_sta)
- return;
-
- rate_idx = lq_sta->last_txrate_idx;
-
- if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) {
- rate_idx -= IWL_FIRST_OFDM_RATE;
- /* 6M and 9M shared same MCS index */
- rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0;
- if (iwl4965_rs_extract_rate(lq_sta->last_rate_n_flags) >=
- IWL_RATE_MIMO2_6M_PLCP)
- rate_idx = rate_idx + MCS_INDEX_PER_STREAM;
- info->control.rates[0].flags = IEEE80211_TX_RC_MCS;
- if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK)
- info->control.rates[0].flags |=
- IEEE80211_TX_RC_SHORT_GI;
- if (lq_sta->last_rate_n_flags & RATE_MCS_DUP_MSK)
- info->control.rates[0].flags |=
- IEEE80211_TX_RC_DUP_DATA;
- if (lq_sta->last_rate_n_flags & RATE_MCS_HT40_MSK)
- info->control.rates[0].flags |=
- IEEE80211_TX_RC_40_MHZ_WIDTH;
- if (lq_sta->last_rate_n_flags & RATE_MCS_GF_MSK)
- info->control.rates[0].flags |=
- IEEE80211_TX_RC_GREEN_FIELD;
- } else {
- /* Check for invalid rates */
- if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) ||
- ((sband->band == IEEE80211_BAND_5GHZ) &&
- (rate_idx < IWL_FIRST_OFDM_RATE)))
- rate_idx = rate_lowest_index(sband, sta);
- /* On valid 5 GHz rate, adjust index */
- else if (sband->band == IEEE80211_BAND_5GHZ)
- rate_idx -= IWL_FIRST_OFDM_RATE;
- info->control.rates[0].flags = 0;
- }
- info->control.rates[0].idx = rate_idx;
-
-}
-
-static void *iwl4965_rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta,
- gfp_t gfp)
-{
- struct iwl_lq_sta *lq_sta;
- struct iwl_station_priv *sta_priv =
- (struct iwl_station_priv *) sta->drv_priv;
- struct iwl_priv *priv;
-
- priv = (struct iwl_priv *)priv_rate;
- IWL_DEBUG_RATE(priv, "create station rate scale window\n");
-
- lq_sta = &sta_priv->lq_sta;
-
- return lq_sta;
-}
-
-/*
- * Called after adding a new station to initialize rate scaling
- */
-void
-iwl4965_rs_rate_init(struct iwl_priv *priv,
- struct ieee80211_sta *sta,
- u8 sta_id)
-{
- int i, j;
- struct ieee80211_hw *hw = priv->hw;
- struct ieee80211_conf *conf = &priv->hw->conf;
- struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
- struct iwl_station_priv *sta_priv;
- struct iwl_lq_sta *lq_sta;
- struct ieee80211_supported_band *sband;
-
- sta_priv = (struct iwl_station_priv *) sta->drv_priv;
- lq_sta = &sta_priv->lq_sta;
- sband = hw->wiphy->bands[conf->channel->band];
-
-
- lq_sta->lq.sta_id = sta_id;
-
- for (j = 0; j < LQ_SIZE; j++)
- for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl4965_rs_rate_scale_clear_window(
- &lq_sta->lq_info[j].win[i]);
-
- lq_sta->flush_timer = 0;
- lq_sta->supp_rates = sta->supp_rates[sband->band];
- for (j = 0; j < LQ_SIZE; j++)
- for (i = 0; i < IWL_RATE_COUNT; i++)
- iwl4965_rs_rate_scale_clear_window(
- &lq_sta->lq_info[j].win[i]);
-
- IWL_DEBUG_RATE(priv, "LQ:"
- "*** rate scale station global init for station %d ***\n",
- sta_id);
- /* TODO: what is a good starting rate for STA? About middle? Maybe not
- * the lowest or the highest rate.. Could consider using RSSI from
- * previous packets? Need to have IEEE 802.1X auth succeed immediately
- * after assoc.. */
-
- lq_sta->is_dup = 0;
- lq_sta->max_rate_idx = -1;
- lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
- lq_sta->is_green = iwl4965_rs_use_green(sta);
- lq_sta->active_legacy_rate = priv->active_rate & ~(0x1000);
- lq_sta->band = priv->band;
- /*
- * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
- * supp_rates[] does not; shift to convert format, force 9 MBits off.
- */
- lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
- lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
- lq_sta->active_siso_rate &= ~((u16)0x2);
- lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
-
- /* Same here */
- lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
- lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
- lq_sta->active_mimo2_rate &= ~((u16)0x2);
- lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
-
- /* These values will be overridden later */
- lq_sta->lq.general_params.single_stream_ant_msk =
- iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
- lq_sta->lq.general_params.dual_stream_ant_msk =
- priv->hw_params.valid_tx_ant &
- ~iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
- if (!lq_sta->lq.general_params.dual_stream_ant_msk) {
- lq_sta->lq.general_params.dual_stream_ant_msk = ANT_AB;
- } else if (iwl4965_num_of_ant(priv->hw_params.valid_tx_ant) == 2) {
- lq_sta->lq.general_params.dual_stream_ant_msk =
- priv->hw_params.valid_tx_ant;
- }
-
- /* as default allow aggregation for all tids */
- lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID;
- lq_sta->drv = priv;
-
- /* Set last_txrate_idx to lowest rate */
- lq_sta->last_txrate_idx = rate_lowest_index(sband, sta);
- if (sband->band == IEEE80211_BAND_5GHZ)
- lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE;
- lq_sta->is_agg = 0;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- lq_sta->dbg_fixed_rate = 0;
-#endif
-
- iwl4965_rs_initialize_lq(priv, conf, sta, lq_sta);
-}
-
-static void iwl4965_rs_fill_link_cmd(struct iwl_priv *priv,
- struct iwl_lq_sta *lq_sta, u32 new_rate)
-{
- struct iwl_scale_tbl_info tbl_type;
- int index = 0;
- int rate_idx;
- int repeat_rate = 0;
- u8 ant_toggle_cnt = 0;
- u8 use_ht_possible = 1;
- u8 valid_tx_ant = 0;
- struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq;
-
- /* Override starting rate (index 0) if needed for debug purposes */
- iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
-
- /* Interpret new_rate (rate_n_flags) */
- iwl4965_rs_get_tbl_info_from_mcs(new_rate, lq_sta->band,
- &tbl_type, &rate_idx);
-
- /* How many times should we repeat the initial rate? */
- if (is_legacy(tbl_type.lq_type)) {
- ant_toggle_cnt = 1;
- repeat_rate = IWL_NUMBER_TRY;
- } else {
- repeat_rate = IWL_HT_NUMBER_TRY;
- }
-
- lq_cmd->general_params.mimo_delimiter =
- is_mimo(tbl_type.lq_type) ? 1 : 0;
-
- /* Fill 1st table entry (index 0) */
- lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate);
-
- if (iwl4965_num_of_ant(tbl_type.ant_type) == 1) {
- lq_cmd->general_params.single_stream_ant_msk =
- tbl_type.ant_type;
- } else if (iwl4965_num_of_ant(tbl_type.ant_type) == 2) {
- lq_cmd->general_params.dual_stream_ant_msk =
- tbl_type.ant_type;
- } /* otherwise we don't modify the existing value */
-
- index++;
- repeat_rate--;
- if (priv)
- valid_tx_ant = priv->hw_params.valid_tx_ant;
-
- /* Fill rest of rate table */
- while (index < LINK_QUAL_MAX_RETRY_NUM) {
- /* Repeat initial/next rate.
- * For legacy IWL_NUMBER_TRY == 1, this loop will not execute.
- * For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */
- while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) {
- if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
- ant_toggle_cnt++;
- else if (priv &&
- iwl4965_rs_toggle_antenna(valid_tx_ant,
- &new_rate, &tbl_type))
- ant_toggle_cnt = 1;
- }
-
- /* Override next rate if needed for debug purposes */
- iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
-
- /* Fill next table entry */
- lq_cmd->rs_table[index].rate_n_flags =
- cpu_to_le32(new_rate);
- repeat_rate--;
- index++;
- }
-
- iwl4965_rs_get_tbl_info_from_mcs(new_rate,
- lq_sta->band, &tbl_type,
- &rate_idx);
-
- /* Indicate to uCode which entries might be MIMO.
- * If initial rate was MIMO, this will finally end up
- * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */
- if (is_mimo(tbl_type.lq_type))
- lq_cmd->general_params.mimo_delimiter = index;
-
- /* Get next rate */
- new_rate = iwl4965_rs_get_lower_rate(lq_sta,
- &tbl_type, rate_idx,
- use_ht_possible);
-
- /* How many times should we repeat the next rate? */
- if (is_legacy(tbl_type.lq_type)) {
- if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE)
- ant_toggle_cnt++;
- else if (priv &&
- iwl4965_rs_toggle_antenna(valid_tx_ant,
- &new_rate, &tbl_type))
- ant_toggle_cnt = 1;
-
- repeat_rate = IWL_NUMBER_TRY;
- } else {
- repeat_rate = IWL_HT_NUMBER_TRY;
- }
-
- /* Don't allow HT rates after next pass.
- * iwl4965_rs_get_lower_rate() will change type to LQ_A or LQ_G. */
- use_ht_possible = 0;
-
- /* Override next rate if needed for debug purposes */
- iwl4965_rs_dbgfs_set_mcs(lq_sta, &new_rate, index);
-
- /* Fill next table entry */
- lq_cmd->rs_table[index].rate_n_flags = cpu_to_le32(new_rate);
-
- index++;
- repeat_rate--;
- }
-
- lq_cmd->agg_params.agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
- lq_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
-
- lq_cmd->agg_params.agg_time_limit =
- cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
-}
-
-static void
-*iwl4965_rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
-{
- return hw->priv;
-}
-/* rate scale requires free function to be implemented */
-static void iwl4965_rs_free(void *priv_rate)
-{
- return;
-}
-
-static void iwl4965_rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
- void *priv_sta)
-{
- struct iwl_priv *priv __maybe_unused = priv_r;
-
- IWL_DEBUG_RATE(priv, "enter\n");
- IWL_DEBUG_RATE(priv, "leave\n");
-}
-
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-static int iwl4965_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-static void iwl4965_rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
- u32 *rate_n_flags, int index)
-{
- struct iwl_priv *priv;
- u8 valid_tx_ant;
- u8 ant_sel_tx;
-
- priv = lq_sta->drv;
- valid_tx_ant = priv->hw_params.valid_tx_ant;
- if (lq_sta->dbg_fixed_rate) {
- ant_sel_tx =
- ((lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK)
- >> RATE_MCS_ANT_POS);
- if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) {
- *rate_n_flags = lq_sta->dbg_fixed_rate;
- IWL_DEBUG_RATE(priv, "Fixed rate ON\n");
- } else {
- lq_sta->dbg_fixed_rate = 0;
- IWL_ERR(priv,
- "Invalid antenna selection 0x%X, Valid is 0x%X\n",
- ant_sel_tx, valid_tx_ant);
- IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
- }
- } else {
- IWL_DEBUG_RATE(priv, "Fixed rate OFF\n");
- }
-}
-
-static ssize_t iwl4965_rs_sta_dbgfs_scale_table_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- struct iwl_lq_sta *lq_sta = file->private_data;
- struct iwl_priv *priv;
- char buf[64];
- size_t buf_size;
- u32 parsed_rate;
- struct iwl_station_priv *sta_priv =
- container_of(lq_sta, struct iwl_station_priv, lq_sta);
- struct iwl_rxon_context *ctx = sta_priv->common.ctx;
-
- priv = lq_sta->drv;
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- if (sscanf(buf, "%x", &parsed_rate) == 1)
- lq_sta->dbg_fixed_rate = parsed_rate;
- else
- lq_sta->dbg_fixed_rate = 0;
-
- lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */
- lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
- lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */
-
- IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n",
- lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
-
- if (lq_sta->dbg_fixed_rate) {
- iwl4965_rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
- iwl_legacy_send_lq_cmd(lq_sta->drv, ctx, &lq_sta->lq, CMD_ASYNC,
- false);
- }
-
- return count;
-}
-
-static ssize_t iwl4965_rs_sta_dbgfs_scale_table_read(struct file *file,
- char __user *user_buf, size_t count, loff_t *ppos)
-{
- char *buff;
- int desc = 0;
- int i = 0;
- int index = 0;
- ssize_t ret;
-
- struct iwl_lq_sta *lq_sta = file->private_data;
- struct iwl_priv *priv;
- struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
-
- priv = lq_sta->drv;
- buff = kmalloc(1024, GFP_KERNEL);
- if (!buff)
- return -ENOMEM;
-
- desc += sprintf(buff+desc, "sta_id %d\n", lq_sta->lq.sta_id);
- desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n",
- lq_sta->total_failed, lq_sta->total_success,
- lq_sta->active_legacy_rate);
- desc += sprintf(buff+desc, "fixed rate 0x%X\n",
- lq_sta->dbg_fixed_rate);
- desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n",
- (priv->hw_params.valid_tx_ant & ANT_A) ? "ANT_A," : "",
- (priv->hw_params.valid_tx_ant & ANT_B) ? "ANT_B," : "",
- (priv->hw_params.valid_tx_ant & ANT_C) ? "ANT_C" : "");
- desc += sprintf(buff+desc, "lq type %s\n",
- (is_legacy(tbl->lq_type)) ? "legacy" : "HT");
- if (is_Ht(tbl->lq_type)) {
- desc += sprintf(buff+desc, " %s",
- (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2");
- desc += sprintf(buff+desc, " %s",
- (tbl->is_ht40) ? "40MHz" : "20MHz");
- desc += sprintf(buff+desc, " %s %s %s\n",
- (tbl->is_SGI) ? "SGI" : "",
- (lq_sta->is_green) ? "GF enabled" : "",
- (lq_sta->is_agg) ? "AGG on" : "");
- }
- desc += sprintf(buff+desc, "last tx rate=0x%X\n",
- lq_sta->last_rate_n_flags);
- desc += sprintf(buff+desc, "general:"
- "flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n",
- lq_sta->lq.general_params.flags,
- lq_sta->lq.general_params.mimo_delimiter,
- lq_sta->lq.general_params.single_stream_ant_msk,
- lq_sta->lq.general_params.dual_stream_ant_msk);
-
- desc += sprintf(buff+desc, "agg:"
- "time_limit=%d dist_start_th=%d frame_cnt_limit=%d\n",
- le16_to_cpu(lq_sta->lq.agg_params.agg_time_limit),
- lq_sta->lq.agg_params.agg_dis_start_th,
- lq_sta->lq.agg_params.agg_frame_cnt_limit);
-
- desc += sprintf(buff+desc,
- "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n",
- lq_sta->lq.general_params.start_rate_index[0],
- lq_sta->lq.general_params.start_rate_index[1],
- lq_sta->lq.general_params.start_rate_index[2],
- lq_sta->lq.general_params.start_rate_index[3]);
-
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
- index = iwl4965_hwrate_to_plcp_idx(
- le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags));
- if (is_legacy(tbl->lq_type)) {
- desc += sprintf(buff+desc, " rate[%d] 0x%X %smbps\n",
- i,
- le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags),
- iwl_rate_mcs[index].mbps);
- } else {
- desc += sprintf(buff+desc,
- " rate[%d] 0x%X %smbps (%s)\n",
- i,
- le32_to_cpu(lq_sta->lq.rs_table[i].rate_n_flags),
- iwl_rate_mcs[index].mbps, iwl_rate_mcs[index].mcs);
- }
- }
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
- kfree(buff);
- return ret;
-}
-
-static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
- .write = iwl4965_rs_sta_dbgfs_scale_table_write,
- .read = iwl4965_rs_sta_dbgfs_scale_table_read,
- .open = iwl4965_open_file_generic,
- .llseek = default_llseek,
-};
-static ssize_t iwl4965_rs_sta_dbgfs_stats_table_read(struct file *file,
- char __user *user_buf, size_t count, loff_t *ppos)
-{
- char *buff;
- int desc = 0;
- int i, j;
- ssize_t ret;
-
- struct iwl_lq_sta *lq_sta = file->private_data;
-
- buff = kmalloc(1024, GFP_KERNEL);
- if (!buff)
- return -ENOMEM;
-
- for (i = 0; i < LQ_SIZE; i++) {
- desc += sprintf(buff+desc,
- "%s type=%d SGI=%d HT40=%d DUP=%d GF=%d\n"
- "rate=0x%X\n",
- lq_sta->active_tbl == i ? "*" : "x",
- lq_sta->lq_info[i].lq_type,
- lq_sta->lq_info[i].is_SGI,
- lq_sta->lq_info[i].is_ht40,
- lq_sta->lq_info[i].is_dup,
- lq_sta->is_green,
- lq_sta->lq_info[i].current_rate);
- for (j = 0; j < IWL_RATE_COUNT; j++) {
- desc += sprintf(buff+desc,
- "counter=%d success=%d %%=%d\n",
- lq_sta->lq_info[i].win[j].counter,
- lq_sta->lq_info[i].win[j].success_counter,
- lq_sta->lq_info[i].win[j].success_ratio);
- }
- }
- ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
- kfree(buff);
- return ret;
-}
-
-static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
- .read = iwl4965_rs_sta_dbgfs_stats_table_read,
- .open = iwl4965_open_file_generic,
- .llseek = default_llseek,
-};
-
-static ssize_t iwl4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file,
- char __user *user_buf, size_t count, loff_t *ppos)
-{
- char buff[120];
- int desc = 0;
- ssize_t ret;
-
- struct iwl_lq_sta *lq_sta = file->private_data;
- struct iwl_priv *priv;
- struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl];
-
- priv = lq_sta->drv;
-
- if (is_Ht(tbl->lq_type))
- desc += sprintf(buff+desc,
- "Bit Rate= %d Mb/s\n",
- tbl->expected_tpt[lq_sta->last_txrate_idx]);
- else
- desc += sprintf(buff+desc,
- "Bit Rate= %d Mb/s\n",
- iwlegacy_rates[lq_sta->last_txrate_idx].ieee >> 1);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
- return ret;
-}
-
-static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
- .read = iwl4965_rs_sta_dbgfs_rate_scale_data_read,
- .open = iwl4965_open_file_generic,
- .llseek = default_llseek,
-};
-
-static void iwl4965_rs_add_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct iwl_lq_sta *lq_sta = priv_sta;
- lq_sta->rs_sta_dbgfs_scale_table_file =
- debugfs_create_file("rate_scale_table", S_IRUSR | S_IWUSR, dir,
- lq_sta, &rs_sta_dbgfs_scale_table_ops);
- lq_sta->rs_sta_dbgfs_stats_table_file =
- debugfs_create_file("rate_stats_table", S_IRUSR, dir,
- lq_sta, &rs_sta_dbgfs_stats_table_ops);
- lq_sta->rs_sta_dbgfs_rate_scale_data_file =
- debugfs_create_file("rate_scale_data", S_IRUSR, dir,
- lq_sta, &rs_sta_dbgfs_rate_scale_data_ops);
- lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file =
- debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir,
- &lq_sta->tx_agg_tid_en);
-
-}
-
-static void iwl4965_rs_remove_debugfs(void *priv, void *priv_sta)
-{
- struct iwl_lq_sta *lq_sta = priv_sta;
- debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file);
- debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file);
- debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file);
- debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file);
-}
-#endif
-
-/*
- * Initialization of rate scaling information is done by driver after
- * the station is added. Since mac80211 calls this function before a
- * station is added we ignore it.
- */
-static void
-iwl4965_rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband,
- struct ieee80211_sta *sta, void *priv_sta)
-{
-}
-static struct rate_control_ops rs_4965_ops = {
- .module = NULL,
- .name = IWL4965_RS_NAME,
- .tx_status = iwl4965_rs_tx_status,
- .get_rate = iwl4965_rs_get_rate,
- .rate_init = iwl4965_rs_rate_init_stub,
- .alloc = iwl4965_rs_alloc,
- .free = iwl4965_rs_free,
- .alloc_sta = iwl4965_rs_alloc_sta,
- .free_sta = iwl4965_rs_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = iwl4965_rs_add_debugfs,
- .remove_sta_debugfs = iwl4965_rs_remove_debugfs,
-#endif
-};
-
-int iwl4965_rate_control_register(void)
-{
- return ieee80211_rate_control_register(&rs_4965_ops);
-}
-
-void iwl4965_rate_control_unregister(void)
-{
- ieee80211_rate_control_unregister(&rs_4965_ops);
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-rx.c b/drivers/net/wireless/iwlegacy/iwl-4965-rx.c
deleted file mode 100644
index 2b144bb..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-rx.c
+++ /dev/null
@@ -1,215 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-4965-calib.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965-hw.h"
-#include "iwl-4965.h"
-
-void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_missed_beacon_notif *missed_beacon;
-
- missed_beacon = &pkt->u.missed_beacon;
- if (le32_to_cpu(missed_beacon->consecutive_missed_beacons) >
- priv->missed_beacon_threshold) {
- IWL_DEBUG_CALIB(priv,
- "missed bcn cnsq %d totl %d rcd %d expctd %d\n",
- le32_to_cpu(missed_beacon->consecutive_missed_beacons),
- le32_to_cpu(missed_beacon->total_missed_becons),
- le32_to_cpu(missed_beacon->num_recvd_beacons),
- le32_to_cpu(missed_beacon->num_expected_beacons));
- if (!test_bit(STATUS_SCANNING, &priv->status))
- iwl4965_init_sensitivity(priv);
- }
-}
-
-/* Calculate noise level, based on measurements during network silence just
- * before arriving beacon. This measurement can be done only if we know
- * exactly when to expect beacons, therefore only when we're associated. */
-static void iwl4965_rx_calc_noise(struct iwl_priv *priv)
-{
- struct statistics_rx_non_phy *rx_info;
- int num_active_rx = 0;
- int total_silence = 0;
- int bcn_silence_a, bcn_silence_b, bcn_silence_c;
- int last_rx_noise;
-
- rx_info = &(priv->_4965.statistics.rx.general);
- bcn_silence_a =
- le32_to_cpu(rx_info->beacon_silence_rssi_a) & IN_BAND_FILTER;
- bcn_silence_b =
- le32_to_cpu(rx_info->beacon_silence_rssi_b) & IN_BAND_FILTER;
- bcn_silence_c =
- le32_to_cpu(rx_info->beacon_silence_rssi_c) & IN_BAND_FILTER;
-
- if (bcn_silence_a) {
- total_silence += bcn_silence_a;
- num_active_rx++;
- }
- if (bcn_silence_b) {
- total_silence += bcn_silence_b;
- num_active_rx++;
- }
- if (bcn_silence_c) {
- total_silence += bcn_silence_c;
- num_active_rx++;
- }
-
- /* Average among active antennas */
- if (num_active_rx)
- last_rx_noise = (total_silence / num_active_rx) - 107;
- else
- last_rx_noise = IWL_NOISE_MEAS_NOT_AVAILABLE;
-
- IWL_DEBUG_CALIB(priv, "inband silence a %u, b %u, c %u, dBm %d\n",
- bcn_silence_a, bcn_silence_b, bcn_silence_c,
- last_rx_noise);
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-/*
- * based on the assumption of all statistics counter are in DWORD
- * FIXME: This function is for debugging, do not deal with
- * the case of counters roll-over.
- */
-static void iwl4965_accumulative_statistics(struct iwl_priv *priv,
- __le32 *stats)
-{
- int i, size;
- __le32 *prev_stats;
- u32 *accum_stats;
- u32 *delta, *max_delta;
- struct statistics_general_common *general, *accum_general;
- struct statistics_tx *tx, *accum_tx;
-
- prev_stats = (__le32 *)&priv->_4965.statistics;
- accum_stats = (u32 *)&priv->_4965.accum_statistics;
- size = sizeof(struct iwl_notif_statistics);
- general = &priv->_4965.statistics.general.common;
- accum_general = &priv->_4965.accum_statistics.general.common;
- tx = &priv->_4965.statistics.tx;
- accum_tx = &priv->_4965.accum_statistics.tx;
- delta = (u32 *)&priv->_4965.delta_statistics;
- max_delta = (u32 *)&priv->_4965.max_delta;
-
- for (i = sizeof(__le32); i < size;
- i += sizeof(__le32), stats++, prev_stats++, delta++,
- max_delta++, accum_stats++) {
- if (le32_to_cpu(*stats) > le32_to_cpu(*prev_stats)) {
- *delta = (le32_to_cpu(*stats) -
- le32_to_cpu(*prev_stats));
- *accum_stats += *delta;
- if (*delta > *max_delta)
- *max_delta = *delta;
- }
- }
-
- /* reset accumulative statistics for "no-counter" type statistics */
- accum_general->temperature = general->temperature;
- accum_general->ttl_timestamp = general->ttl_timestamp;
-}
-#endif
-
-#define REG_RECALIB_PERIOD (60)
-
-void iwl4965_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- int change;
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- IWL_DEBUG_RX(priv,
- "Statistics notification received (%d vs %d).\n",
- (int)sizeof(struct iwl_notif_statistics),
- le32_to_cpu(pkt->len_n_flags) &
- FH_RSCSR_FRAME_SIZE_MSK);
-
- change = ((priv->_4965.statistics.general.common.temperature !=
- pkt->u.stats.general.common.temperature) ||
- ((priv->_4965.statistics.flag &
- STATISTICS_REPLY_FLG_HT40_MODE_MSK) !=
- (pkt->u.stats.flag &
- STATISTICS_REPLY_FLG_HT40_MODE_MSK)));
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- iwl4965_accumulative_statistics(priv, (__le32 *)&pkt->u.stats);
-#endif
-
- /* TODO: reading some of statistics is unneeded */
- memcpy(&priv->_4965.statistics, &pkt->u.stats,
- sizeof(priv->_4965.statistics));
-
- set_bit(STATUS_STATISTICS, &priv->status);
-
- /* Reschedule the statistics timer to occur in
- * REG_RECALIB_PERIOD seconds to ensure we get a
- * thermal update even if the uCode doesn't give
- * us one */
- mod_timer(&priv->statistics_periodic, jiffies +
- msecs_to_jiffies(REG_RECALIB_PERIOD * 1000));
-
- if (unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
- (pkt->hdr.cmd == STATISTICS_NOTIFICATION)) {
- iwl4965_rx_calc_noise(priv);
- queue_work(priv->workqueue, &priv->run_time_calib_work);
- }
- if (priv->cfg->ops->lib->temp_ops.temperature && change)
- priv->cfg->ops->lib->temp_ops.temperature(priv);
-}
-
-void iwl4965_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- if (le32_to_cpu(pkt->u.stats.flag) & UCODE_STATISTICS_CLEAR_MSK) {
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- memset(&priv->_4965.accum_statistics, 0,
- sizeof(struct iwl_notif_statistics));
- memset(&priv->_4965.delta_statistics, 0,
- sizeof(struct iwl_notif_statistics));
- memset(&priv->_4965.max_delta, 0,
- sizeof(struct iwl_notif_statistics));
-#endif
- IWL_DEBUG_RX(priv, "Statistics have been cleared\n");
- }
- iwl4965_rx_statistics(priv, rxb);
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c b/drivers/net/wireless/iwlegacy/iwl-4965-sta.c
deleted file mode 100644
index a262c23..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-sta.c
+++ /dev/null
@@ -1,721 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <net/mac80211.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-4965.h"
-
-static struct iwl_link_quality_cmd *
-iwl4965_sta_alloc_lq(struct iwl_priv *priv, u8 sta_id)
-{
- int i, r;
- struct iwl_link_quality_cmd *link_cmd;
- u32 rate_flags = 0;
- __le32 rate_n_flags;
-
- link_cmd = kzalloc(sizeof(struct iwl_link_quality_cmd), GFP_KERNEL);
- if (!link_cmd) {
- IWL_ERR(priv, "Unable to allocate memory for LQ cmd.\n");
- return NULL;
- }
- /* Set up the rate scaling to start at selected rate, fall back
- * all the way down to 1M in IEEE order, and then spin on 1M */
- if (priv->band == IEEE80211_BAND_5GHZ)
- r = IWL_RATE_6M_INDEX;
- else
- r = IWL_RATE_1M_INDEX;
-
- if (r >= IWL_FIRST_CCK_RATE && r <= IWL_LAST_CCK_RATE)
- rate_flags |= RATE_MCS_CCK_MSK;
-
- rate_flags |= iwl4965_first_antenna(priv->hw_params.valid_tx_ant) <<
- RATE_MCS_ANT_POS;
- rate_n_flags = iwl4965_hw_set_rate_n_flags(iwlegacy_rates[r].plcp,
- rate_flags);
- for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
- link_cmd->rs_table[i].rate_n_flags = rate_n_flags;
-
- link_cmd->general_params.single_stream_ant_msk =
- iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
-
- link_cmd->general_params.dual_stream_ant_msk =
- priv->hw_params.valid_tx_ant &
- ~iwl4965_first_antenna(priv->hw_params.valid_tx_ant);
- if (!link_cmd->general_params.dual_stream_ant_msk) {
- link_cmd->general_params.dual_stream_ant_msk = ANT_AB;
- } else if (iwl4965_num_of_ant(priv->hw_params.valid_tx_ant) == 2) {
- link_cmd->general_params.dual_stream_ant_msk =
- priv->hw_params.valid_tx_ant;
- }
-
- link_cmd->agg_params.agg_dis_start_th = LINK_QUAL_AGG_DISABLE_START_DEF;
- link_cmd->agg_params.agg_time_limit =
- cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
-
- link_cmd->sta_id = sta_id;
-
- return link_cmd;
-}
-
-/*
- * iwl4965_add_bssid_station - Add the special IBSS BSSID station
- *
- * Function sleeps.
- */
-int
-iwl4965_add_bssid_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
- const u8 *addr, u8 *sta_id_r)
-{
- int ret;
- u8 sta_id;
- struct iwl_link_quality_cmd *link_cmd;
- unsigned long flags;
-
- if (sta_id_r)
- *sta_id_r = IWL_INVALID_STATION;
-
- ret = iwl_legacy_add_station_common(priv, ctx, addr, 0, NULL, &sta_id);
- if (ret) {
- IWL_ERR(priv, "Unable to add station %pM\n", addr);
- return ret;
- }
-
- if (sta_id_r)
- *sta_id_r = sta_id;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].used |= IWL_STA_LOCAL;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- /* Set up default rate scaling table in device's station table */
- link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
- if (!link_cmd) {
- IWL_ERR(priv,
- "Unable to initialize rate scaling for station %pM.\n",
- addr);
- return -ENOMEM;
- }
-
- ret = iwl_legacy_send_lq_cmd(priv, ctx, link_cmd, CMD_SYNC, true);
- if (ret)
- IWL_ERR(priv, "Link quality command failed (%d)\n", ret);
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].lq = link_cmd;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return 0;
-}
-
-static int iwl4965_static_wepkey_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- bool send_if_empty)
-{
- int i, not_empty = 0;
- u8 buff[sizeof(struct iwl_wep_cmd) +
- sizeof(struct iwl_wep_key) * WEP_KEYS_MAX];
- struct iwl_wep_cmd *wep_cmd = (struct iwl_wep_cmd *)buff;
- size_t cmd_size = sizeof(struct iwl_wep_cmd);
- struct iwl_host_cmd cmd = {
- .id = ctx->wep_key_cmd,
- .data = wep_cmd,
- .flags = CMD_SYNC,
- };
-
- might_sleep();
-
- memset(wep_cmd, 0, cmd_size +
- (sizeof(struct iwl_wep_key) * WEP_KEYS_MAX));
-
- for (i = 0; i < WEP_KEYS_MAX ; i++) {
- wep_cmd->key[i].key_index = i;
- if (ctx->wep_keys[i].key_size) {
- wep_cmd->key[i].key_offset = i;
- not_empty = 1;
- } else {
- wep_cmd->key[i].key_offset = WEP_INVALID_OFFSET;
- }
-
- wep_cmd->key[i].key_size = ctx->wep_keys[i].key_size;
- memcpy(&wep_cmd->key[i].key[3], ctx->wep_keys[i].key,
- ctx->wep_keys[i].key_size);
- }
-
- wep_cmd->global_key_type = WEP_KEY_WEP_TYPE;
- wep_cmd->num_keys = WEP_KEYS_MAX;
-
- cmd_size += sizeof(struct iwl_wep_key) * WEP_KEYS_MAX;
-
- cmd.len = cmd_size;
-
- if (not_empty || send_if_empty)
- return iwl_legacy_send_cmd(priv, &cmd);
- else
- return 0;
-}
-
-int iwl4965_restore_default_wep_keys(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- lockdep_assert_held(&priv->mutex);
-
- return iwl4965_static_wepkey_cmd(priv, ctx, false);
-}
-
-int iwl4965_remove_default_wep_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf)
-{
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- IWL_DEBUG_WEP(priv, "Removing default WEP key: idx=%d\n",
- keyconf->keyidx);
-
- memset(&ctx->wep_keys[keyconf->keyidx], 0, sizeof(ctx->wep_keys[0]));
- if (iwl_legacy_is_rfkill(priv)) {
- IWL_DEBUG_WEP(priv,
- "Not sending REPLY_WEPKEY command due to RFKILL.\n");
- /* but keys in device are clear anyway so return success */
- return 0;
- }
- ret = iwl4965_static_wepkey_cmd(priv, ctx, 1);
- IWL_DEBUG_WEP(priv, "Remove default WEP key: idx=%d ret=%d\n",
- keyconf->keyidx, ret);
-
- return ret;
-}
-
-int iwl4965_set_default_wep_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf)
-{
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- if (keyconf->keylen != WEP_KEY_LEN_128 &&
- keyconf->keylen != WEP_KEY_LEN_64) {
- IWL_DEBUG_WEP(priv, "Bad WEP key length %d\n", keyconf->keylen);
- return -EINVAL;
- }
-
- keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->hw_key_idx = HW_KEY_DEFAULT;
- priv->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
-
- ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
- memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
- keyconf->keylen);
-
- ret = iwl4965_static_wepkey_cmd(priv, ctx, false);
- IWL_DEBUG_WEP(priv, "Set default WEP key: len=%d idx=%d ret=%d\n",
- keyconf->keylen, keyconf->keyidx, ret);
-
- return ret;
-}
-
-static int iwl4965_set_wep_dynamic_key_info(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- __le16 key_flags = 0;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
-
- key_flags |= (STA_KEY_FLG_WEP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- if (keyconf->keylen == WEP_KEY_LEN_128)
- key_flags |= STA_KEY_FLG_KEY_SIZE_MSK;
-
- if (sta_id == ctx->bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
- priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
- priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
-
- memcpy(priv->stations[sta_id].keyinfo.key,
- keyconf->key, keyconf->keylen);
-
- memcpy(&priv->stations[sta_id].sta.key.key[3],
- keyconf->key, keyconf->keylen);
-
- if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
- == STA_KEY_FLG_NO_ENC)
- priv->stations[sta_id].sta.key.key_offset =
- iwl_legacy_get_free_ucode_key_index(priv);
- /* else, we are overriding an existing key => no need to allocated room
- * in uCode. */
-
- WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
- "no space for a new key");
-
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-static int iwl4965_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- __le16 key_flags = 0;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- if (sta_id == ctx->bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
- keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
- priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-
- memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
- keyconf->keylen);
-
- memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
- keyconf->keylen);
-
- if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
- == STA_KEY_FLG_NO_ENC)
- priv->stations[sta_id].sta.key.key_offset =
- iwl_legacy_get_free_ucode_key_index(priv);
- /* else, we are overriding an existing key => no need to allocated room
- * in uCode. */
-
- WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
- "no space for a new key");
-
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-static int iwl4965_set_tkip_dynamic_key_info(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- int ret = 0;
- __le16 key_flags = 0;
-
- key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- if (sta_id == ctx->bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
- keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
- priv->stations[sta_id].keyinfo.keylen = 16;
-
- if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
- == STA_KEY_FLG_NO_ENC)
- priv->stations[sta_id].sta.key.key_offset =
- iwl_legacy_get_free_ucode_key_index(priv);
- /* else, we are overriding an existing key => no need to allocated room
- * in uCode. */
-
- WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
- "no space for a new key");
-
- priv->stations[sta_id].sta.key.key_flags = key_flags;
-
-
- /* This copy is acutally not needed: we get the key with each TX */
- memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
-
- memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return ret;
-}
-
-void iwl4965_update_tkip_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- struct ieee80211_sta *sta, u32 iv32, u16 *phase1key)
-{
- u8 sta_id;
- unsigned long flags;
- int i;
-
- if (iwl_legacy_scan_cancel(priv)) {
- /* cancel scan failed, just live w/ bad key and rely
- briefly on SW decryption */
- return;
- }
-
- sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, sta);
- if (sta_id == IWL_INVALID_STATION)
- return;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- priv->stations[sta_id].sta.key.tkip_rx_tsc_byte2 = (u8) iv32;
-
- for (i = 0; i < 5; i++)
- priv->stations[sta_id].sta.key.tkip_rx_ttak[i] =
- cpu_to_le16(phase1key[i]);
-
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- iwl_legacy_send_add_sta(priv, &priv->stations[sta_id].sta, CMD_ASYNC);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
-}
-
-int iwl4965_remove_dynamic_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- u16 key_flags;
- u8 keyidx;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- ctx->key_mapping_keys--;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- key_flags = le16_to_cpu(priv->stations[sta_id].sta.key.key_flags);
- keyidx = (key_flags >> STA_KEY_FLG_KEYID_POS) & 0x3;
-
- IWL_DEBUG_WEP(priv, "Remove dynamic key: idx=%d sta=%d\n",
- keyconf->keyidx, sta_id);
-
- if (keyconf->keyidx != keyidx) {
- /* We need to remove a key with index different that the one
- * in the uCode. This means that the key we need to remove has
- * been replaced by another one with different index.
- * Don't do anything and return ok
- */
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
- }
-
- if (priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET) {
- IWL_WARN(priv, "Removing wrong key %d 0x%x\n",
- keyconf->keyidx, key_flags);
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
- }
-
- if (!test_and_clear_bit(priv->stations[sta_id].sta.key.key_offset,
- &priv->ucode_key_table))
- IWL_ERR(priv, "index %d not used in uCode key table.\n",
- priv->stations[sta_id].sta.key.key_offset);
- memset(&priv->stations[sta_id].keyinfo, 0,
- sizeof(struct iwl_hw_key));
- memset(&priv->stations[sta_id].sta.key, 0,
- sizeof(struct iwl4965_keyinfo));
- priv->stations[sta_id].sta.key.key_flags =
- STA_KEY_FLG_NO_ENC | STA_KEY_FLG_INVALID;
- priv->stations[sta_id].sta.key.key_offset = WEP_INVALID_OFFSET;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- if (iwl_legacy_is_rfkill(priv)) {
- IWL_DEBUG_WEP(priv,
- "Not sending REPLY_ADD_STA command because RFKILL enabled.\n");
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
- }
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-int iwl4965_set_dynamic_key(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- ctx->key_mapping_keys++;
- keyconf->hw_key_idx = HW_KEY_DYNAMIC;
-
- switch (keyconf->cipher) {
- case WLAN_CIPHER_SUITE_CCMP:
- ret = iwl4965_set_ccmp_dynamic_key_info(priv, ctx,
- keyconf, sta_id);
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- ret = iwl4965_set_tkip_dynamic_key_info(priv, ctx,
- keyconf, sta_id);
- break;
- case WLAN_CIPHER_SUITE_WEP40:
- case WLAN_CIPHER_SUITE_WEP104:
- ret = iwl4965_set_wep_dynamic_key_info(priv, ctx,
- keyconf, sta_id);
- break;
- default:
- IWL_ERR(priv,
- "Unknown alg: %s cipher = %x\n", __func__,
- keyconf->cipher);
- ret = -EINVAL;
- }
-
- IWL_DEBUG_WEP(priv,
- "Set dynamic key: cipher=%x len=%d idx=%d sta=%d ret=%d\n",
- keyconf->cipher, keyconf->keylen, keyconf->keyidx,
- sta_id, ret);
-
- return ret;
-}
-
-/**
- * iwl4965_alloc_bcast_station - add broadcast station into driver's station table.
- *
- * This adds the broadcast station into the driver's station table
- * and marks it driver active, so that it will be restored to the
- * device at the next best time.
- */
-int iwl4965_alloc_bcast_station(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- struct iwl_link_quality_cmd *link_cmd;
- unsigned long flags;
- u8 sta_id;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- sta_id = iwl_legacy_prep_station(priv, ctx, iwlegacy_bcast_addr,
- false, NULL);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Unable to prepare broadcast station\n");
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return -EINVAL;
- }
-
- priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE;
- priv->stations[sta_id].used |= IWL_STA_BCAST;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
- if (!link_cmd) {
- IWL_ERR(priv,
- "Unable to initialize rate scaling for bcast station.\n");
- return -ENOMEM;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].lq = link_cmd;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return 0;
-}
-
-/**
- * iwl4965_update_bcast_station - update broadcast station's LQ command
- *
- * Only used by iwl4965. Placed here to have all bcast station management
- * code together.
- */
-static int iwl4965_update_bcast_station(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- unsigned long flags;
- struct iwl_link_quality_cmd *link_cmd;
- u8 sta_id = ctx->bcast_sta_id;
-
- link_cmd = iwl4965_sta_alloc_lq(priv, sta_id);
- if (!link_cmd) {
- IWL_ERR(priv,
- "Unable to initialize rate scaling for bcast station.\n");
- return -ENOMEM;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- if (priv->stations[sta_id].lq)
- kfree(priv->stations[sta_id].lq);
- else
- IWL_DEBUG_INFO(priv,
- "Bcast station rate scaling has not been initialized yet.\n");
- priv->stations[sta_id].lq = link_cmd;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return 0;
-}
-
-int iwl4965_update_bcast_stations(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx;
- int ret = 0;
-
- for_each_context(priv, ctx) {
- ret = iwl4965_update_bcast_station(priv, ctx);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-/**
- * iwl4965_sta_tx_modify_enable_tid - Enable Tx for this TID in station table
- */
-int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid)
-{
- unsigned long flags;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- /* Remove "disable" flag, to enable Tx for this TID */
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_TID_DISABLE_TX;
- priv->stations[sta_id].sta.tid_disable_tx &= cpu_to_le16(~(1 << tid));
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
- int tid, u16 ssn)
-{
- unsigned long flags;
- int sta_id;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- sta_id = iwl_legacy_sta_id(sta);
- if (sta_id == IWL_INVALID_STATION)
- return -ENXIO;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_ADDBA_TID_MSK;
- priv->stations[sta_id].sta.add_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.add_immediate_ba_ssn = cpu_to_le16(ssn);
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
- int tid)
-{
- unsigned long flags;
- int sta_id;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- lockdep_assert_held(&priv->mutex);
-
- sta_id = iwl_legacy_sta_id(sta);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
- return -ENXIO;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags_msk = 0;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_DELBA_TID_MSK;
- priv->stations[sta_id].sta.remove_immediate_ba_tid = (u8)tid;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-void
-iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv, int sta_id, int cnt)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].sta.station_flags |= STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.station_flags_msk = STA_FLG_PWR_SAVE_MSK;
- priv->stations[sta_id].sta.sta.modify_mask =
- STA_MODIFY_SLEEP_TX_COUNT_MSK;
- priv->stations[sta_id].sta.sleep_tx_count = cpu_to_le16(cnt);
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- iwl_legacy_send_add_sta(priv,
- &priv->stations[sta_id].sta, CMD_ASYNC);
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
deleted file mode 100644
index 7f12e36..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
+++ /dev/null
@@ -1,1378 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965-hw.h"
-#include "iwl-4965.h"
-
-/*
- * mac80211 queues, ACs, hardware queues, FIFOs.
- *
- * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
- *
- * Mac80211 uses the following numbers, which we get as from it
- * by way of skb_get_queue_mapping(skb):
- *
- * VO 0
- * VI 1
- * BE 2
- * BK 3
- *
- *
- * Regular (not A-MPDU) frames are put into hardware queues corresponding
- * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
- * own queue per aggregation session (RA/TID combination), such queues are
- * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
- * order to map frames to the right queue, we also need an AC->hw queue
- * mapping. This is implemented here.
- *
- * Due to the way hw queues are set up (by the hw specific modules like
- * iwl-4965.c), the AC->hw queue mapping is the identity
- * mapping.
- */
-
-static const u8 tid_to_ac[] = {
- IEEE80211_AC_BE,
- IEEE80211_AC_BK,
- IEEE80211_AC_BK,
- IEEE80211_AC_BE,
- IEEE80211_AC_VI,
- IEEE80211_AC_VI,
- IEEE80211_AC_VO,
- IEEE80211_AC_VO
-};
-
-static inline int iwl4965_get_ac_from_tid(u16 tid)
-{
- if (likely(tid < ARRAY_SIZE(tid_to_ac)))
- return tid_to_ac[tid];
-
- /* no support for TIDs 8-15 yet */
- return -EINVAL;
-}
-
-static inline int
-iwl4965_get_fifo_from_tid(struct iwl_rxon_context *ctx, u16 tid)
-{
- if (likely(tid < ARRAY_SIZE(tid_to_ac)))
- return ctx->ac_to_fifo[tid_to_ac[tid]];
-
- /* no support for TIDs 8-15 yet */
- return -EINVAL;
-}
-
-/*
- * handle build REPLY_TX command notification.
- */
-static void iwl4965_tx_cmd_build_basic(struct iwl_priv *priv,
- struct sk_buff *skb,
- struct iwl_tx_cmd *tx_cmd,
- struct ieee80211_tx_info *info,
- struct ieee80211_hdr *hdr,
- u8 std_id)
-{
- __le16 fc = hdr->frame_control;
- __le32 tx_flags = tx_cmd->tx_flags;
-
- tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
- tx_flags |= TX_CMD_FLG_ACK_MSK;
- if (ieee80211_is_mgmt(fc))
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- if (ieee80211_is_probe_resp(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
- tx_flags |= TX_CMD_FLG_TSF_MSK;
- } else {
- tx_flags &= (~TX_CMD_FLG_ACK_MSK);
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- if (ieee80211_is_back_req(fc))
- tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK;
-
- tx_cmd->sta_id = std_id;
- if (ieee80211_has_morefrags(fc))
- tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
- if (ieee80211_is_data_qos(fc)) {
- u8 *qc = ieee80211_get_qos_ctl(hdr);
- tx_cmd->tid_tspec = qc[0] & 0xf;
- tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
- } else {
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- iwl_legacy_tx_cmd_protection(priv, info, fc, &tx_flags);
-
- tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
- if (ieee80211_is_mgmt(fc)) {
- if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
- tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3);
- else
- tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2);
- } else {
- tx_cmd->timeout.pm_frame_timeout = 0;
- }
-
- tx_cmd->driver_txop = 0;
- tx_cmd->tx_flags = tx_flags;
- tx_cmd->next_frame_len = 0;
-}
-
-#define RTS_DFAULT_RETRY_LIMIT 60
-
-static void iwl4965_tx_cmd_build_rate(struct iwl_priv *priv,
- struct iwl_tx_cmd *tx_cmd,
- struct ieee80211_tx_info *info,
- __le16 fc)
-{
- u32 rate_flags;
- int rate_idx;
- u8 rts_retry_limit;
- u8 data_retry_limit;
- u8 rate_plcp;
-
- /* Set retry limit on DATA packets and Probe Responses*/
- if (ieee80211_is_probe_resp(fc))
- data_retry_limit = 3;
- else
- data_retry_limit = IWL4965_DEFAULT_TX_RETRY;
- tx_cmd->data_retry_limit = data_retry_limit;
-
- /* Set retry limit on RTS packets */
- rts_retry_limit = RTS_DFAULT_RETRY_LIMIT;
- if (data_retry_limit < rts_retry_limit)
- rts_retry_limit = data_retry_limit;
- tx_cmd->rts_retry_limit = rts_retry_limit;
-
- /* DATA packets will use the uCode station table for rate/antenna
- * selection */
- if (ieee80211_is_data(fc)) {
- tx_cmd->initial_rate_index = 0;
- tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK;
- return;
- }
-
- /**
- * If the current TX rate stored in mac80211 has the MCS bit set, it's
- * not really a TX rate. Thus, we use the lowest supported rate for
- * this band. Also use the lowest supported rate if the stored rate
- * index is invalid.
- */
- rate_idx = info->control.rates[0].idx;
- if (info->control.rates[0].flags & IEEE80211_TX_RC_MCS ||
- (rate_idx < 0) || (rate_idx > IWL_RATE_COUNT_LEGACY))
- rate_idx = rate_lowest_index(&priv->bands[info->band],
- info->control.sta);
- /* For 5 GHZ band, remap mac80211 rate indices into driver indices */
- if (info->band == IEEE80211_BAND_5GHZ)
- rate_idx += IWL_FIRST_OFDM_RATE;
- /* Get PLCP rate for tx_cmd->rate_n_flags */
- rate_plcp = iwlegacy_rates[rate_idx].plcp;
- /* Zero out flags for this packet */
- rate_flags = 0;
-
- /* Set CCK flag as needed */
- if ((rate_idx >= IWL_FIRST_CCK_RATE) && (rate_idx <= IWL_LAST_CCK_RATE))
- rate_flags |= RATE_MCS_CCK_MSK;
-
- /* Set up antennas */
- priv->mgmt_tx_ant = iwl4965_toggle_tx_ant(priv, priv->mgmt_tx_ant,
- priv->hw_params.valid_tx_ant);
-
- rate_flags |= iwl4965_ant_idx_to_flags(priv->mgmt_tx_ant);
-
- /* Set the rate in the TX cmd */
- tx_cmd->rate_n_flags = iwl4965_hw_set_rate_n_flags(rate_plcp, rate_flags);
-}
-
-static void iwl4965_tx_cmd_build_hwcrypto(struct iwl_priv *priv,
- struct ieee80211_tx_info *info,
- struct iwl_tx_cmd *tx_cmd,
- struct sk_buff *skb_frag,
- int sta_id)
-{
- struct ieee80211_key_conf *keyconf = info->control.hw_key;
-
- switch (keyconf->cipher) {
- case WLAN_CIPHER_SUITE_CCMP:
- tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
- memcpy(tx_cmd->key, keyconf->key, keyconf->keylen);
- if (info->flags & IEEE80211_TX_CTL_AMPDU)
- tx_cmd->tx_flags |= TX_CMD_FLG_AGG_CCMP_MSK;
- IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
- break;
-
- case WLAN_CIPHER_SUITE_TKIP:
- tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
- ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
- IWL_DEBUG_TX(priv, "tx_cmd with tkip hwcrypto\n");
- break;
-
- case WLAN_CIPHER_SUITE_WEP104:
- tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
- /* fall through */
- case WLAN_CIPHER_SUITE_WEP40:
- tx_cmd->sec_ctl |= (TX_CMD_SEC_WEP |
- (keyconf->keyidx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT);
-
- memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen);
-
- IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
- "with key %d\n", keyconf->keyidx);
- break;
-
- default:
- IWL_ERR(priv, "Unknown encode cipher %x\n", keyconf->cipher);
- break;
- }
-}
-
-/*
- * start REPLY_TX command process
- */
-int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct ieee80211_sta *sta = info->control.sta;
- struct iwl_station_priv *sta_priv = NULL;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- struct iwl_device_cmd *out_cmd;
- struct iwl_cmd_meta *out_meta;
- struct iwl_tx_cmd *tx_cmd;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- int txq_id;
- dma_addr_t phys_addr;
- dma_addr_t txcmd_phys;
- dma_addr_t scratch_phys;
- u16 len, firstlen, secondlen;
- u16 seq_number = 0;
- __le16 fc;
- u8 hdr_len;
- u8 sta_id;
- u8 wait_write_ptr = 0;
- u8 tid = 0;
- u8 *qc = NULL;
- unsigned long flags;
- bool is_agg = false;
-
- if (info->control.vif)
- ctx = iwl_legacy_rxon_ctx_from_vif(info->control.vif);
-
- spin_lock_irqsave(&priv->lock, flags);
- if (iwl_legacy_is_rfkill(priv)) {
- IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
- goto drop_unlock;
- }
-
- fc = hdr->frame_control;
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
- else if (ieee80211_is_assoc_req(fc))
- IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
- else if (ieee80211_is_reassoc_req(fc))
- IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
-#endif
-
- hdr_len = ieee80211_hdrlen(fc);
-
- /* For management frames use broadcast id to do not break aggregation */
- if (!ieee80211_is_data(fc))
- sta_id = ctx->bcast_sta_id;
- else {
- /* Find index into station table for destination station */
- sta_id = iwl_legacy_sta_id_or_broadcast(priv, ctx, info->control.sta);
-
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
- hdr->addr1);
- goto drop_unlock;
- }
- }
-
- IWL_DEBUG_TX(priv, "station Id %d\n", sta_id);
-
- if (sta)
- sta_priv = (void *)sta->drv_priv;
-
- if (sta_priv && sta_priv->asleep &&
- (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
- /*
- * This sends an asynchronous command to the device,
- * but we can rely on it being processed before the
- * next frame is processed -- and the next frame to
- * this station is the one that will consume this
- * counter.
- * For now set the counter to just 1 since we do not
- * support uAPSD yet.
- */
- iwl4965_sta_modify_sleep_tx_count(priv, sta_id, 1);
- }
-
- /*
- * Send this frame after DTIM -- there's a special queue
- * reserved for this for contexts that support AP mode.
- */
- if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
- txq_id = ctx->mcast_queue;
- /*
- * The microcode will clear the more data
- * bit in the last frame it transmits.
- */
- hdr->frame_control |=
- cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- } else
- txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)];
-
- /* irqs already disabled/saved above when locking priv->lock */
- spin_lock(&priv->sta_lock);
-
- if (ieee80211_is_data_qos(fc)) {
- qc = ieee80211_get_qos_ctl(hdr);
- tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
- if (WARN_ON_ONCE(tid >= MAX_TID_COUNT)) {
- spin_unlock(&priv->sta_lock);
- goto drop_unlock;
- }
- seq_number = priv->stations[sta_id].tid[tid].seq_number;
- seq_number &= IEEE80211_SCTL_SEQ;
- hdr->seq_ctrl = hdr->seq_ctrl &
- cpu_to_le16(IEEE80211_SCTL_FRAG);
- hdr->seq_ctrl |= cpu_to_le16(seq_number);
- seq_number += 0x10;
- /* aggregation is on for this <sta,tid> */
- if (info->flags & IEEE80211_TX_CTL_AMPDU &&
- priv->stations[sta_id].tid[tid].agg.state == IWL_AGG_ON) {
- txq_id = priv->stations[sta_id].tid[tid].agg.txq_id;
- is_agg = true;
- }
- }
-
- txq = &priv->txq[txq_id];
- q = &txq->q;
-
- if (unlikely(iwl_legacy_queue_space(q) < q->high_mark)) {
- spin_unlock(&priv->sta_lock);
- goto drop_unlock;
- }
-
- if (ieee80211_is_data_qos(fc)) {
- priv->stations[sta_id].tid[tid].tfds_in_queue++;
- if (!ieee80211_has_morefrags(fc))
- priv->stations[sta_id].tid[tid].seq_number = seq_number;
- }
-
- spin_unlock(&priv->sta_lock);
-
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->write_ptr].skb = skb;
- txq->txb[q->write_ptr].ctx = ctx;
-
- /* Set up first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = txq->cmd[q->write_ptr];
- out_meta = &txq->meta[q->write_ptr];
- tx_cmd = &out_cmd->cmd.tx;
- memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
- memset(tx_cmd, 0, sizeof(struct iwl_tx_cmd));
-
- /*
- * Set up the Tx-command (not MAC!) header.
- * Store the chosen Tx queue and TFD index within the sequence field;
- * after Tx, uCode's Tx response will return this value so driver can
- * locate the frame within the tx queue and do post-tx processing.
- */
- out_cmd->hdr.cmd = REPLY_TX;
- out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->write_ptr)));
-
- /* Copy MAC header from skb into command buffer */
- memcpy(tx_cmd->hdr, hdr, hdr_len);
-
-
- /* Total # bytes to be transmitted */
- len = (u16)skb->len;
- tx_cmd->len = cpu_to_le16(len);
-
- if (info->control.hw_key)
- iwl4965_tx_cmd_build_hwcrypto(priv, info, tx_cmd, skb, sta_id);
-
- /* TODO need this for burst mode later on */
- iwl4965_tx_cmd_build_basic(priv, skb, tx_cmd, info, hdr, sta_id);
- iwl_legacy_dbg_log_tx_data_frame(priv, len, hdr);
-
- iwl4965_tx_cmd_build_rate(priv, tx_cmd, info, fc);
-
- iwl_legacy_update_stats(priv, true, fc, len);
- /*
- * Use the first empty entry in this queue's command buffer array
- * to contain the Tx command and MAC header concatenated together
- * (payload data will be in another buffer).
- * Size of this varies, due to varying MAC header length.
- * If end is not dword aligned, we'll have 2 extra bytes at the end
- * of the MAC header (device reads on dword boundaries).
- * We'll tell device about this padding later.
- */
- len = sizeof(struct iwl_tx_cmd) +
- sizeof(struct iwl_cmd_header) + hdr_len;
- firstlen = (len + 3) & ~3;
-
- /* Tell NIC about any 2-byte padding after MAC header */
- if (firstlen != len)
- tx_cmd->tx_flags |= TX_CMD_FLG_MH_PAD_MSK;
-
- /* Physical address of this Tx command's header (not MAC header!),
- * within command buffer array. */
- txcmd_phys = pci_map_single(priv->pci_dev,
- &out_cmd->hdr, firstlen,
- PCI_DMA_BIDIRECTIONAL);
- dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
- dma_unmap_len_set(out_meta, len, firstlen);
- /* Add buffer containing Tx command and MAC(!) header to TFD's
- * first entry */
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- txcmd_phys, firstlen, 1, 0);
-
- if (!ieee80211_has_morefrags(hdr->frame_control)) {
- txq->need_update = 1;
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- /* Set up TFD's 2nd entry to point directly to remainder of skb,
- * if any (802.11 null frames have no payload). */
- secondlen = skb->len - hdr_len;
- if (secondlen > 0) {
- phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
- secondlen, PCI_DMA_TODEVICE);
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- phys_addr, secondlen,
- 0, 0);
- }
-
- scratch_phys = txcmd_phys + sizeof(struct iwl_cmd_header) +
- offsetof(struct iwl_tx_cmd, scratch);
-
- /* take back ownership of DMA buffer to enable update */
- pci_dma_sync_single_for_cpu(priv->pci_dev, txcmd_phys,
- firstlen, PCI_DMA_BIDIRECTIONAL);
- tx_cmd->dram_lsb_ptr = cpu_to_le32(scratch_phys);
- tx_cmd->dram_msb_ptr = iwl_legacy_get_dma_hi_addr(scratch_phys);
-
- IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n",
- le16_to_cpu(out_cmd->hdr.sequence));
- IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags));
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd, sizeof(*tx_cmd));
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr, hdr_len);
-
- /* Set up entry for this TFD in Tx byte-count array */
- if (info->flags & IEEE80211_TX_CTL_AMPDU)
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq,
- le16_to_cpu(tx_cmd->len));
-
- pci_dma_sync_single_for_device(priv->pci_dev, txcmd_phys,
- firstlen, PCI_DMA_BIDIRECTIONAL);
-
- trace_iwlwifi_legacy_dev_tx(priv,
- &((struct iwl_tfd *)txq->tfds)[txq->q.write_ptr],
- sizeof(struct iwl_tfd),
- &out_cmd->hdr, firstlen,
- skb->data + hdr_len, secondlen);
-
- /* Tell device the write index *just past* this latest filled TFD */
- q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd);
- iwl_legacy_txq_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /*
- * At this point the frame is "transmitted" successfully
- * and we will get a TX status notification eventually,
- * regardless of the value of ret. "ret" only indicates
- * whether or not we should update the write pointer.
- */
-
- /*
- * Avoid atomic ops if it isn't an associated client.
- * Also, if this is a packet for aggregation, don't
- * increase the counter because the ucode will stop
- * aggregation queues when their respective station
- * goes to sleep.
- */
- if (sta_priv && sta_priv->client && !is_agg)
- atomic_inc(&sta_priv->pending_frames);
-
- if ((iwl_legacy_queue_space(q) < q->high_mark) &&
- priv->mac80211_registered) {
- if (wait_write_ptr) {
- spin_lock_irqsave(&priv->lock, flags);
- txq->need_update = 1;
- iwl_legacy_txq_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- } else {
- iwl_legacy_stop_queue(priv, txq);
- }
- }
-
- return 0;
-
-drop_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
- return -1;
-}
-
-static inline int iwl4965_alloc_dma_ptr(struct iwl_priv *priv,
- struct iwl_dma_ptr *ptr, size_t size)
-{
- ptr->addr = dma_alloc_coherent(&priv->pci_dev->dev, size, &ptr->dma,
- GFP_KERNEL);
- if (!ptr->addr)
- return -ENOMEM;
- ptr->size = size;
- return 0;
-}
-
-static inline void iwl4965_free_dma_ptr(struct iwl_priv *priv,
- struct iwl_dma_ptr *ptr)
-{
- if (unlikely(!ptr->addr))
- return;
-
- dma_free_coherent(&priv->pci_dev->dev, ptr->size, ptr->addr, ptr->dma);
- memset(ptr, 0, sizeof(*ptr));
-}
-
-/**
- * iwl4965_hw_txq_ctx_free - Free TXQ Context
- *
- * Destroy all TX DMA queues and structures
- */
-void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv)
-{
- int txq_id;
-
- /* Tx queues */
- if (priv->txq) {
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
- if (txq_id == priv->cmd_queue)
- iwl_legacy_cmd_queue_free(priv);
- else
- iwl_legacy_tx_queue_free(priv, txq_id);
- }
- iwl4965_free_dma_ptr(priv, &priv->kw);
-
- iwl4965_free_dma_ptr(priv, &priv->scd_bc_tbls);
-
- /* free tx queue structure */
- iwl_legacy_txq_mem(priv);
-}
-
-/**
- * iwl4965_txq_ctx_alloc - allocate TX queue context
- * Allocate all Tx DMA structures and initialize them
- *
- * @param priv
- * @return error code
- */
-int iwl4965_txq_ctx_alloc(struct iwl_priv *priv)
-{
- int ret;
- int txq_id, slots_num;
- unsigned long flags;
-
- /* Free all tx/cmd queues and keep-warm buffer */
- iwl4965_hw_txq_ctx_free(priv);
-
- ret = iwl4965_alloc_dma_ptr(priv, &priv->scd_bc_tbls,
- priv->hw_params.scd_bc_tbls_size);
- if (ret) {
- IWL_ERR(priv, "Scheduler BC Table allocation failed\n");
- goto error_bc_tbls;
- }
- /* Alloc keep-warm buffer */
- ret = iwl4965_alloc_dma_ptr(priv, &priv->kw, IWL_KW_SIZE);
- if (ret) {
- IWL_ERR(priv, "Keep Warm allocation failed\n");
- goto error_kw;
- }
-
- /* allocate tx queue structure */
- ret = iwl_legacy_alloc_txq_mem(priv);
- if (ret)
- goto error;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Turn off all Tx DMA fifos */
- iwl4965_txq_set_sched(priv, 0);
-
- /* Tell NIC where to find the "keep warm" buffer */
- iwl_legacy_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Alloc and init all Tx queues, including the command queue (#4/#9) */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- slots_num = (txq_id == priv->cmd_queue) ?
- TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- ret = iwl_legacy_tx_queue_init(priv,
- &priv->txq[txq_id], slots_num,
- txq_id);
- if (ret) {
- IWL_ERR(priv, "Tx %d queue init failed\n", txq_id);
- goto error;
- }
- }
-
- return ret;
-
- error:
- iwl4965_hw_txq_ctx_free(priv);
- iwl4965_free_dma_ptr(priv, &priv->kw);
- error_kw:
- iwl4965_free_dma_ptr(priv, &priv->scd_bc_tbls);
- error_bc_tbls:
- return ret;
-}
-
-void iwl4965_txq_ctx_reset(struct iwl_priv *priv)
-{
- int txq_id, slots_num;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Turn off all Tx DMA fifos */
- iwl4965_txq_set_sched(priv, 0);
-
- /* Tell NIC where to find the "keep warm" buffer */
- iwl_legacy_write_direct32(priv, FH_KW_MEM_ADDR_REG, priv->kw.dma >> 4);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Alloc and init all Tx queues, including the command queue (#4) */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++) {
- slots_num = txq_id == priv->cmd_queue ?
- TFD_CMD_SLOTS : TFD_TX_CMD_SLOTS;
- iwl_legacy_tx_queue_reset(priv, &priv->txq[txq_id],
- slots_num, txq_id);
- }
-}
-
-/**
- * iwl4965_txq_ctx_stop - Stop all Tx DMA channels
- */
-void iwl4965_txq_ctx_stop(struct iwl_priv *priv)
-{
- int ch, txq_id;
- unsigned long flags;
-
- /* Turn off all Tx DMA fifos */
- spin_lock_irqsave(&priv->lock, flags);
-
- iwl4965_txq_set_sched(priv, 0);
-
- /* Stop each Tx DMA channel, and wait for it to be idle */
- for (ch = 0; ch < priv->hw_params.dma_chnl_num; ch++) {
- iwl_legacy_write_direct32(priv,
- FH_TCSR_CHNL_TX_CONFIG_REG(ch), 0x0);
- if (iwl_poll_direct_bit(priv, FH_TSSR_TX_STATUS_REG,
- FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(ch),
- 1000))
- IWL_ERR(priv, "Failing on timeout while stopping"
- " DMA channel %d [0x%08x]", ch,
- iwl_legacy_read_direct32(priv,
- FH_TSSR_TX_STATUS_REG));
- }
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (!priv->txq)
- return;
-
- /* Unmap DMA from host system and free skb's */
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
- if (txq_id == priv->cmd_queue)
- iwl_legacy_cmd_queue_unmap(priv);
- else
- iwl_legacy_tx_queue_unmap(priv, txq_id);
-}
-
-/*
- * Find first available (lowest unused) Tx Queue, mark it "active".
- * Called only when finding queue for aggregation.
- * Should never return anything < 7, because they should already
- * be in use as EDCA AC (0-3), Command (4), reserved (5, 6)
- */
-static int iwl4965_txq_ctx_activate_free(struct iwl_priv *priv)
-{
- int txq_id;
-
- for (txq_id = 0; txq_id < priv->hw_params.max_txq_num; txq_id++)
- if (!test_and_set_bit(txq_id, &priv->txq_ctx_active_msk))
- return txq_id;
- return -1;
-}
-
-/**
- * iwl4965_tx_queue_stop_scheduler - Stop queue, but keep configuration
- */
-static void iwl4965_tx_queue_stop_scheduler(struct iwl_priv *priv,
- u16 txq_id)
-{
- /* Simply stop the queue, but don't change any configuration;
- * the SCD_ACT_EN bit is the write-enable mask for the ACTIVE bit. */
- iwl_legacy_write_prph(priv,
- IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
- (0 << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE)|
- (1 << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
-}
-
-/**
- * iwl4965_tx_queue_set_q2ratid - Map unique receiver/tid combination to a queue
- */
-static int iwl4965_tx_queue_set_q2ratid(struct iwl_priv *priv, u16 ra_tid,
- u16 txq_id)
-{
- u32 tbl_dw_addr;
- u32 tbl_dw;
- u16 scd_q2ratid;
-
- scd_q2ratid = ra_tid & IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK;
-
- tbl_dw_addr = priv->scd_base_addr +
- IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(txq_id);
-
- tbl_dw = iwl_legacy_read_targ_mem(priv, tbl_dw_addr);
-
- if (txq_id & 0x1)
- tbl_dw = (scd_q2ratid << 16) | (tbl_dw & 0x0000FFFF);
- else
- tbl_dw = scd_q2ratid | (tbl_dw & 0xFFFF0000);
-
- iwl_legacy_write_targ_mem(priv, tbl_dw_addr, tbl_dw);
-
- return 0;
-}
-
-/**
- * iwl4965_tx_queue_agg_enable - Set up & enable aggregation for selected queue
- *
- * NOTE: txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE,
- * i.e. it must be one of the higher queues used for aggregation
- */
-static int iwl4965_txq_agg_enable(struct iwl_priv *priv, int txq_id,
- int tx_fifo, int sta_id, int tid, u16 ssn_idx)
-{
- unsigned long flags;
- u16 ra_tid;
- int ret;
-
- if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
- (IWL49_FIRST_AMPDU_QUEUE +
- priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) {
- IWL_WARN(priv,
- "queue number out of range: %d, must be %d to %d\n",
- txq_id, IWL49_FIRST_AMPDU_QUEUE,
- IWL49_FIRST_AMPDU_QUEUE +
- priv->cfg->base_params->num_of_ampdu_queues - 1);
- return -EINVAL;
- }
-
- ra_tid = BUILD_RAxTID(sta_id, tid);
-
- /* Modify device's station table to Tx this TID */
- ret = iwl4965_sta_tx_modify_enable_tid(priv, sta_id, tid);
- if (ret)
- return ret;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Stop this Tx queue before configuring it */
- iwl4965_tx_queue_stop_scheduler(priv, txq_id);
-
- /* Map receiver-address / traffic-ID to this queue */
- iwl4965_tx_queue_set_q2ratid(priv, ra_tid, txq_id);
-
- /* Set this queue as a chain-building queue */
- iwl_legacy_set_bits_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
-
- /* Place first TFD at index corresponding to start sequence number.
- * Assumes that ssn_idx is valid (!= 0xFFF) */
- priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
- priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
- iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
-
- /* Set up Tx window size and frame limit for this queue */
- iwl_legacy_write_targ_mem(priv,
- priv->scd_base_addr + IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id),
- (SCD_WIN_SIZE << IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
- IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
-
- iwl_legacy_write_targ_mem(priv, priv->scd_base_addr +
- IWL49_SCD_CONTEXT_QUEUE_OFFSET(txq_id) + sizeof(u32),
- (SCD_FRAME_LIMIT << IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS)
- & IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
-
- iwl_legacy_set_bits_prph(priv, IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
-
- /* Set up Status area in SRAM, map to Tx DMA/FIFO, activate the queue */
- iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 1);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
-
-int iwl4965_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn)
-{
- int sta_id;
- int tx_fifo;
- int txq_id;
- int ret;
- unsigned long flags;
- struct iwl_tid_data *tid_data;
-
- tx_fifo = iwl4965_get_fifo_from_tid(iwl_legacy_rxon_ctx_from_vif(vif), tid);
- if (unlikely(tx_fifo < 0))
- return tx_fifo;
-
- IWL_WARN(priv, "%s on ra = %pM tid = %d\n",
- __func__, sta->addr, tid);
-
- sta_id = iwl_legacy_sta_id(sta);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Start AGG on invalid station\n");
- return -ENXIO;
- }
- if (unlikely(tid >= MAX_TID_COUNT))
- return -EINVAL;
-
- if (priv->stations[sta_id].tid[tid].agg.state != IWL_AGG_OFF) {
- IWL_ERR(priv, "Start AGG when state is not IWL_AGG_OFF !\n");
- return -ENXIO;
- }
-
- txq_id = iwl4965_txq_ctx_activate_free(priv);
- if (txq_id == -1) {
- IWL_ERR(priv, "No free aggregation queue available\n");
- return -ENXIO;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- tid_data = &priv->stations[sta_id].tid[tid];
- *ssn = SEQ_TO_SN(tid_data->seq_number);
- tid_data->agg.txq_id = txq_id;
- iwl_legacy_set_swq_id(&priv->txq[txq_id],
- iwl4965_get_ac_from_tid(tid), txq_id);
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- ret = iwl4965_txq_agg_enable(priv, txq_id, tx_fifo,
- sta_id, tid, *ssn);
- if (ret)
- return ret;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- tid_data = &priv->stations[sta_id].tid[tid];
- if (tid_data->tfds_in_queue == 0) {
- IWL_DEBUG_HT(priv, "HW queue is empty\n");
- tid_data->agg.state = IWL_AGG_ON;
- ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
- } else {
- IWL_DEBUG_HT(priv,
- "HW queue is NOT empty: %d packets in HW queue\n",
- tid_data->tfds_in_queue);
- tid_data->agg.state = IWL_EMPTYING_HW_QUEUE_ADDBA;
- }
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return ret;
-}
-
-/**
- * txq_id must be greater than IWL49_FIRST_AMPDU_QUEUE
- * priv->lock must be held by the caller
- */
-static int iwl4965_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo)
-{
- if ((IWL49_FIRST_AMPDU_QUEUE > txq_id) ||
- (IWL49_FIRST_AMPDU_QUEUE +
- priv->cfg->base_params->num_of_ampdu_queues <= txq_id)) {
- IWL_WARN(priv,
- "queue number out of range: %d, must be %d to %d\n",
- txq_id, IWL49_FIRST_AMPDU_QUEUE,
- IWL49_FIRST_AMPDU_QUEUE +
- priv->cfg->base_params->num_of_ampdu_queues - 1);
- return -EINVAL;
- }
-
- iwl4965_tx_queue_stop_scheduler(priv, txq_id);
-
- iwl_legacy_clear_bits_prph(priv,
- IWL49_SCD_QUEUECHAIN_SEL, (1 << txq_id));
-
- priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
- priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
- /* supposes that ssn_idx is valid (!= 0xFFF) */
- iwl4965_set_wr_ptrs(priv, txq_id, ssn_idx);
-
- iwl_legacy_clear_bits_prph(priv,
- IWL49_SCD_INTERRUPT_MASK, (1 << txq_id));
- iwl_txq_ctx_deactivate(priv, txq_id);
- iwl4965_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
-
- return 0;
-}
-
-int iwl4965_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, u16 tid)
-{
- int tx_fifo_id, txq_id, sta_id, ssn;
- struct iwl_tid_data *tid_data;
- int write_ptr, read_ptr;
- unsigned long flags;
-
- tx_fifo_id = iwl4965_get_fifo_from_tid(iwl_legacy_rxon_ctx_from_vif(vif), tid);
- if (unlikely(tx_fifo_id < 0))
- return tx_fifo_id;
-
- sta_id = iwl_legacy_sta_id(sta);
-
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Invalid station for AGG tid %d\n", tid);
- return -ENXIO;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- tid_data = &priv->stations[sta_id].tid[tid];
- ssn = (tid_data->seq_number & IEEE80211_SCTL_SEQ) >> 4;
- txq_id = tid_data->agg.txq_id;
-
- switch (priv->stations[sta_id].tid[tid].agg.state) {
- case IWL_EMPTYING_HW_QUEUE_ADDBA:
- /*
- * This can happen if the peer stops aggregation
- * again before we've had a chance to drain the
- * queue we selected previously, i.e. before the
- * session was really started completely.
- */
- IWL_DEBUG_HT(priv, "AGG stop before setup done\n");
- goto turn_off;
- case IWL_AGG_ON:
- break;
- default:
- IWL_WARN(priv, "Stopping AGG while state not ON or starting\n");
- }
-
- write_ptr = priv->txq[txq_id].q.write_ptr;
- read_ptr = priv->txq[txq_id].q.read_ptr;
-
- /* The queue is not empty */
- if (write_ptr != read_ptr) {
- IWL_DEBUG_HT(priv, "Stopping a non empty AGG HW QUEUE\n");
- priv->stations[sta_id].tid[tid].agg.state =
- IWL_EMPTYING_HW_QUEUE_DELBA;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return 0;
- }
-
- IWL_DEBUG_HT(priv, "HW queue is empty\n");
- turn_off:
- priv->stations[sta_id].tid[tid].agg.state = IWL_AGG_OFF;
-
- /* do not restore/save irqs */
- spin_unlock(&priv->sta_lock);
- spin_lock(&priv->lock);
-
- /*
- * the only reason this call can fail is queue number out of range,
- * which can happen if uCode is reloaded and all the station
- * information are lost. if it is outside the range, there is no need
- * to deactivate the uCode queue, just return "success" to allow
- * mac80211 to clean up it own data.
- */
- iwl4965_txq_agg_disable(priv, txq_id, ssn, tx_fifo_id);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
-
- return 0;
-}
-
-int iwl4965_txq_check_empty(struct iwl_priv *priv,
- int sta_id, u8 tid, int txq_id)
-{
- struct iwl_queue *q = &priv->txq[txq_id].q;
- u8 *addr = priv->stations[sta_id].sta.sta.addr;
- struct iwl_tid_data *tid_data = &priv->stations[sta_id].tid[tid];
- struct iwl_rxon_context *ctx;
-
- ctx = &priv->contexts[priv->stations[sta_id].ctxid];
-
- lockdep_assert_held(&priv->sta_lock);
-
- switch (priv->stations[sta_id].tid[tid].agg.state) {
- case IWL_EMPTYING_HW_QUEUE_DELBA:
- /* We are reclaiming the last packet of the */
- /* aggregated HW queue */
- if ((txq_id == tid_data->agg.txq_id) &&
- (q->read_ptr == q->write_ptr)) {
- u16 ssn = SEQ_TO_SN(tid_data->seq_number);
- int tx_fifo = iwl4965_get_fifo_from_tid(ctx, tid);
- IWL_DEBUG_HT(priv,
- "HW queue empty: continue DELBA flow\n");
- iwl4965_txq_agg_disable(priv, txq_id, ssn, tx_fifo);
- tid_data->agg.state = IWL_AGG_OFF;
- ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
- }
- break;
- case IWL_EMPTYING_HW_QUEUE_ADDBA:
- /* We are reclaiming the last packet of the queue */
- if (tid_data->tfds_in_queue == 0) {
- IWL_DEBUG_HT(priv,
- "HW queue empty: continue ADDBA flow\n");
- tid_data->agg.state = IWL_AGG_ON;
- ieee80211_start_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
- }
- break;
- }
-
- return 0;
-}
-
-static void iwl4965_non_agg_tx_status(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- const u8 *addr1)
-{
- struct ieee80211_sta *sta;
- struct iwl_station_priv *sta_priv;
-
- rcu_read_lock();
- sta = ieee80211_find_sta(ctx->vif, addr1);
- if (sta) {
- sta_priv = (void *)sta->drv_priv;
- /* avoid atomic ops if this isn't a client */
- if (sta_priv->client &&
- atomic_dec_return(&sta_priv->pending_frames) == 0)
- ieee80211_sta_block_awake(priv->hw, sta, false);
- }
- rcu_read_unlock();
-}
-
-static void
-iwl4965_tx_status(struct iwl_priv *priv, struct iwl_tx_info *tx_info,
- bool is_agg)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx_info->skb->data;
-
- if (!is_agg)
- iwl4965_non_agg_tx_status(priv, tx_info->ctx, hdr->addr1);
-
- ieee80211_tx_status_irqsafe(priv->hw, tx_info->skb);
-}
-
-int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
- struct iwl_tx_info *tx_info;
- int nfreed = 0;
- struct ieee80211_hdr *hdr;
-
- if ((index >= q->n_bd) || (iwl_legacy_queue_used(q, index) == 0)) {
- IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
- "is out of range [0-%d] %d %d.\n", txq_id,
- index, q->n_bd, q->write_ptr, q->read_ptr);
- return 0;
- }
-
- for (index = iwl_legacy_queue_inc_wrap(index, q->n_bd);
- q->read_ptr != index;
- q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
-
- tx_info = &txq->txb[txq->q.read_ptr];
-
- if (WARN_ON_ONCE(tx_info->skb == NULL))
- continue;
-
- hdr = (struct ieee80211_hdr *)tx_info->skb->data;
- if (ieee80211_is_data_qos(hdr->frame_control))
- nfreed++;
-
- iwl4965_tx_status(priv, tx_info,
- txq_id >= IWL4965_FIRST_AMPDU_QUEUE);
- tx_info->skb = NULL;
-
- priv->cfg->ops->lib->txq_free_tfd(priv, txq);
- }
- return nfreed;
-}
-
-/**
- * iwl4965_tx_status_reply_compressed_ba - Update tx status from block-ack
- *
- * Go through block-ack's bitmap of ACK'd frames, update driver's record of
- * ACK vs. not. This gets sent to mac80211, then to rate scaling algo.
- */
-static int iwl4965_tx_status_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_ht_agg *agg,
- struct iwl_compressed_ba_resp *ba_resp)
-
-{
- int i, sh, ack;
- u16 seq_ctl = le16_to_cpu(ba_resp->seq_ctl);
- u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
- int successes = 0;
- struct ieee80211_tx_info *info;
- u64 bitmap, sent_bitmap;
-
- if (unlikely(!agg->wait_for_ba)) {
- if (unlikely(ba_resp->bitmap))
- IWL_ERR(priv, "Received BA when not expected\n");
- return -EINVAL;
- }
-
- /* Mark that the expected block-ack response arrived */
- agg->wait_for_ba = 0;
- IWL_DEBUG_TX_REPLY(priv, "BA %d %d\n", agg->start_idx,
- ba_resp->seq_ctl);
-
- /* Calculate shift to align block-ack bits with our Tx window bits */
- sh = agg->start_idx - SEQ_TO_INDEX(seq_ctl >> 4);
- if (sh < 0) /* tbw something is wrong with indices */
- sh += 0x100;
-
- if (agg->frame_count > (64 - sh)) {
- IWL_DEBUG_TX_REPLY(priv, "more frames than bitmap size");
- return -1;
- }
-
- /* don't use 64-bit values for now */
- bitmap = le64_to_cpu(ba_resp->bitmap) >> sh;
-
- /* check for success or failure according to the
- * transmitted bitmap and block-ack bitmap */
- sent_bitmap = bitmap & agg->bitmap;
-
- /* For each frame attempted in aggregation,
- * update driver's record of tx frame's status. */
- i = 0;
- while (sent_bitmap) {
- ack = sent_bitmap & 1ULL;
- successes += ack;
- IWL_DEBUG_TX_REPLY(priv, "%s ON i=%d idx=%d raw=%d\n",
- ack ? "ACK" : "NACK", i,
- (agg->start_idx + i) & 0xff,
- agg->start_idx + i);
- sent_bitmap >>= 1;
- ++i;
- }
-
- IWL_DEBUG_TX_REPLY(priv, "Bitmap %llx\n",
- (unsigned long long)bitmap);
-
- info = IEEE80211_SKB_CB(priv->txq[scd_flow].txb[agg->start_idx].skb);
- memset(&info->status, 0, sizeof(info->status));
- info->flags |= IEEE80211_TX_STAT_ACK;
- info->flags |= IEEE80211_TX_STAT_AMPDU;
- info->status.ampdu_ack_len = successes;
- info->status.ampdu_len = agg->frame_count;
- iwl4965_hwrate_to_tx_control(priv, agg->rate_n_flags, info);
-
- return 0;
-}
-
-/**
- * translate ucode response to mac80211 tx status control values
- */
-void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
- struct ieee80211_tx_info *info)
-{
- struct ieee80211_tx_rate *r = &info->control.rates[0];
-
- info->antenna_sel_tx =
- ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
- if (rate_n_flags & RATE_MCS_HT_MSK)
- r->flags |= IEEE80211_TX_RC_MCS;
- if (rate_n_flags & RATE_MCS_GF_MSK)
- r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
- if (rate_n_flags & RATE_MCS_HT40_MSK)
- r->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
- if (rate_n_flags & RATE_MCS_DUP_MSK)
- r->flags |= IEEE80211_TX_RC_DUP_DATA;
- if (rate_n_flags & RATE_MCS_SGI_MSK)
- r->flags |= IEEE80211_TX_RC_SHORT_GI;
- r->idx = iwl4965_hwrate_to_mac80211_idx(rate_n_flags, info->band);
-}
-
-/**
- * iwl4965_rx_reply_compressed_ba - Handler for REPLY_COMPRESSED_BA
- *
- * Handles block-acknowledge notification from device, which reports success
- * of frames sent via aggregation.
- */
-void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_compressed_ba_resp *ba_resp = &pkt->u.compressed_ba;
- struct iwl_tx_queue *txq = NULL;
- struct iwl_ht_agg *agg;
- int index;
- int sta_id;
- int tid;
- unsigned long flags;
-
- /* "flow" corresponds to Tx queue */
- u16 scd_flow = le16_to_cpu(ba_resp->scd_flow);
-
- /* "ssn" is start of block-ack Tx window, corresponds to index
- * (in Tx queue's circular buffer) of first TFD/frame in window */
- u16 ba_resp_scd_ssn = le16_to_cpu(ba_resp->scd_ssn);
-
- if (scd_flow >= priv->hw_params.max_txq_num) {
- IWL_ERR(priv,
- "BUG_ON scd_flow is bigger than number of queues\n");
- return;
- }
-
- txq = &priv->txq[scd_flow];
- sta_id = ba_resp->sta_id;
- tid = ba_resp->tid;
- agg = &priv->stations[sta_id].tid[tid].agg;
- if (unlikely(agg->txq_id != scd_flow)) {
- /*
- * FIXME: this is a uCode bug which need to be addressed,
- * log the information and return for now!
- * since it is possible happen very often and in order
- * not to fill the syslog, don't enable the logging by default
- */
- IWL_DEBUG_TX_REPLY(priv,
- "BA scd_flow %d does not match txq_id %d\n",
- scd_flow, agg->txq_id);
- return;
- }
-
- /* Find index just before block-ack window */
- index = iwl_legacy_queue_dec_wrap(ba_resp_scd_ssn & 0xff, txq->q.n_bd);
-
- spin_lock_irqsave(&priv->sta_lock, flags);
-
- IWL_DEBUG_TX_REPLY(priv, "REPLY_COMPRESSED_BA [%d] Received from %pM, "
- "sta_id = %d\n",
- agg->wait_for_ba,
- (u8 *) &ba_resp->sta_addr_lo32,
- ba_resp->sta_id);
- IWL_DEBUG_TX_REPLY(priv, "TID = %d, SeqCtl = %d, bitmap = 0x%llx,"
- "scd_flow = "
- "%d, scd_ssn = %d\n",
- ba_resp->tid,
- ba_resp->seq_ctl,
- (unsigned long long)le64_to_cpu(ba_resp->bitmap),
- ba_resp->scd_flow,
- ba_resp->scd_ssn);
- IWL_DEBUG_TX_REPLY(priv, "DAT start_idx = %d, bitmap = 0x%llx\n",
- agg->start_idx,
- (unsigned long long)agg->bitmap);
-
- /* Update driver's record of ACK vs. not for each frame in window */
- iwl4965_tx_status_reply_compressed_ba(priv, agg, ba_resp);
-
- /* Release all TFDs before the SSN, i.e. all TFDs in front of
- * block-ack window (we assume that they've been successfully
- * transmitted ... if not, it's too late anyway). */
- if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
- /* calculate mac80211 ampdu sw queue to wake */
- int freed = iwl4965_tx_queue_reclaim(priv, scd_flow, index);
- iwl4965_free_tfds_in_queue(priv, sta_id, tid, freed);
-
- if ((iwl_legacy_queue_space(&txq->q) > txq->q.low_mark) &&
- priv->mac80211_registered &&
- (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
- iwl_legacy_wake_queue(priv, txq);
-
- iwl4965_txq_check_empty(priv, sta_id, tid, scd_flow);
- }
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-const char *iwl4965_get_tx_fail_reason(u32 status)
-{
-#define TX_STATUS_FAIL(x) case TX_STATUS_FAIL_ ## x: return #x
-#define TX_STATUS_POSTPONE(x) case TX_STATUS_POSTPONE_ ## x: return #x
-
- switch (status & TX_STATUS_MSK) {
- case TX_STATUS_SUCCESS:
- return "SUCCESS";
- TX_STATUS_POSTPONE(DELAY);
- TX_STATUS_POSTPONE(FEW_BYTES);
- TX_STATUS_POSTPONE(QUIET_PERIOD);
- TX_STATUS_POSTPONE(CALC_TTAK);
- TX_STATUS_FAIL(INTERNAL_CROSSED_RETRY);
- TX_STATUS_FAIL(SHORT_LIMIT);
- TX_STATUS_FAIL(LONG_LIMIT);
- TX_STATUS_FAIL(FIFO_UNDERRUN);
- TX_STATUS_FAIL(DRAIN_FLOW);
- TX_STATUS_FAIL(RFKILL_FLUSH);
- TX_STATUS_FAIL(LIFE_EXPIRE);
- TX_STATUS_FAIL(DEST_PS);
- TX_STATUS_FAIL(HOST_ABORTED);
- TX_STATUS_FAIL(BT_RETRY);
- TX_STATUS_FAIL(STA_INVALID);
- TX_STATUS_FAIL(FRAG_DROPPED);
- TX_STATUS_FAIL(TID_DISABLE);
- TX_STATUS_FAIL(FIFO_FLUSHED);
- TX_STATUS_FAIL(INSUFFICIENT_CF_POLL);
- TX_STATUS_FAIL(PASSIVE_NO_RX);
- TX_STATUS_FAIL(NO_BEACON_ON_RADAR);
- }
-
- return "UNKNOWN";
-
-#undef TX_STATUS_FAIL
-#undef TX_STATUS_POSTPONE
-}
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c b/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c
deleted file mode 100644
index 001d148..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965-ucode.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965-hw.h"
-#include "iwl-4965.h"
-#include "iwl-4965-calib.h"
-
-#define IWL_AC_UNSET -1
-
-/**
- * iwl_verify_inst_sparse - verify runtime uCode image in card vs. host,
- * using sample data 100 bytes apart. If these sample points are good,
- * it's a pretty good bet that everything between them is good, too.
- */
-static int
-iwl4965_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
-{
- u32 val;
- int ret = 0;
- u32 errcnt = 0;
- u32 i;
-
- IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
-
- for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
- i + IWL4965_RTC_INST_LOWER_BOUND);
- val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
- ret = -EIO;
- errcnt++;
- if (errcnt >= 3)
- break;
- }
- }
-
- return ret;
-}
-
-/**
- * iwl4965_verify_inst_full - verify runtime uCode image in card vs. host,
- * looking at all data.
- */
-static int iwl4965_verify_inst_full(struct iwl_priv *priv, __le32 *image,
- u32 len)
-{
- u32 val;
- u32 save_len = len;
- int ret = 0;
- u32 errcnt;
-
- IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
-
- iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
- IWL4965_RTC_INST_LOWER_BOUND);
-
- errcnt = 0;
- for (; len > 0; len -= sizeof(u32), image++) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
- IWL_ERR(priv, "uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- save_len - len, val, le32_to_cpu(*image));
- ret = -EIO;
- errcnt++;
- if (errcnt >= 20)
- break;
- }
- }
-
- if (!errcnt)
- IWL_DEBUG_INFO(priv,
- "ucode image in INSTRUCTION memory is good\n");
-
- return ret;
-}
-
-/**
- * iwl4965_verify_ucode - determine which instruction image is in SRAM,
- * and verify its contents
- */
-int iwl4965_verify_ucode(struct iwl_priv *priv)
-{
- __le32 *image;
- u32 len;
- int ret;
-
- /* Try bootstrap */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- ret = iwl4965_verify_inst_sparse(priv, image, len);
- if (!ret) {
- IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try initialize */
- image = (__le32 *)priv->ucode_init.v_addr;
- len = priv->ucode_init.len;
- ret = iwl4965_verify_inst_sparse(priv, image, len);
- if (!ret) {
- IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try runtime/protocol */
- image = (__le32 *)priv->ucode_code.v_addr;
- len = priv->ucode_code.len;
- ret = iwl4965_verify_inst_sparse(priv, image, len);
- if (!ret) {
- IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
- return 0;
- }
-
- IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
-
- /* Since nothing seems to match, show first several data entries in
- * instruction SRAM, so maybe visual inspection will give a clue.
- * Selection of bootstrap image (vs. other images) is arbitrary. */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- ret = iwl4965_verify_inst_full(priv, image, len);
-
- return ret;
-}
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.c b/drivers/net/wireless/iwlegacy/iwl-4965.c
deleted file mode 100644
index 86f4fce..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965.c
+++ /dev/null
@@ -1,2183 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <asm/unaligned.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-4965-calib.h"
-#include "iwl-sta.h"
-#include "iwl-4965-led.h"
-#include "iwl-4965.h"
-#include "iwl-4965-debugfs.h"
-
-static int iwl4965_send_tx_power(struct iwl_priv *priv);
-static int iwl4965_hw_get_temperature(struct iwl_priv *priv);
-
-/* Highest firmware API version supported */
-#define IWL4965_UCODE_API_MAX 2
-
-/* Lowest firmware API version supported */
-#define IWL4965_UCODE_API_MIN 2
-
-#define IWL4965_FW_PRE "iwlwifi-4965-"
-#define _IWL4965_MODULE_FIRMWARE(api) IWL4965_FW_PRE #api ".ucode"
-#define IWL4965_MODULE_FIRMWARE(api) _IWL4965_MODULE_FIRMWARE(api)
-
-/* check contents of special bootstrap uCode SRAM */
-static int iwl4965_verify_bsm(struct iwl_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- u32 reg;
- u32 val;
-
- IWL_DEBUG_INFO(priv, "Begin verify bsm\n");
-
- /* verify BSM SRAM contents */
- val = iwl_legacy_read_prph(priv, BSM_WR_DWCOUNT_REG);
- for (reg = BSM_SRAM_LOWER_BOUND;
- reg < BSM_SRAM_LOWER_BOUND + len;
- reg += sizeof(u32), image++) {
- val = iwl_legacy_read_prph(priv, reg);
- if (val != le32_to_cpu(*image)) {
- IWL_ERR(priv, "BSM uCode verification failed at "
- "addr 0x%08X+%u (of %u), is 0x%x, s/b 0x%x\n",
- BSM_SRAM_LOWER_BOUND,
- reg - BSM_SRAM_LOWER_BOUND, len,
- val, le32_to_cpu(*image));
- return -EIO;
- }
- }
-
- IWL_DEBUG_INFO(priv, "BSM bootstrap uCode image OK\n");
-
- return 0;
-}
-
-/**
- * iwl4965_load_bsm - Load bootstrap instructions
- *
- * BSM operation:
- *
- * The Bootstrap State Machine (BSM) stores a short bootstrap uCode program
- * in special SRAM that does not power down during RFKILL. When powering back
- * up after power-saving sleeps (or during initial uCode load), the BSM loads
- * the bootstrap program into the on-board processor, and starts it.
- *
- * The bootstrap program loads (via DMA) instructions and data for a new
- * program from host DRAM locations indicated by the host driver in the
- * BSM_DRAM_* registers. Once the new program is loaded, it starts
- * automatically.
- *
- * When initializing the NIC, the host driver points the BSM to the
- * "initialize" uCode image. This uCode sets up some internal data, then
- * notifies host via "initialize alive" that it is complete.
- *
- * The host then replaces the BSM_DRAM_* pointer values to point to the
- * normal runtime uCode instructions and a backup uCode data cache buffer
- * (filled initially with starting data values for the on-board processor),
- * then triggers the "initialize" uCode to load and launch the runtime uCode,
- * which begins normal operation.
- *
- * When doing a power-save shutdown, runtime uCode saves data SRAM into
- * the backup data cache in DRAM before SRAM is powered down.
- *
- * When powering back up, the BSM loads the bootstrap program. This reloads
- * the runtime uCode instructions and the backup data cache into SRAM,
- * and re-launches the runtime uCode from where it left off.
- */
-static int iwl4965_load_bsm(struct iwl_priv *priv)
-{
- __le32 *image = priv->ucode_boot.v_addr;
- u32 len = priv->ucode_boot.len;
- dma_addr_t pinst;
- dma_addr_t pdata;
- u32 inst_len;
- u32 data_len;
- int i;
- u32 done;
- u32 reg_offset;
- int ret;
-
- IWL_DEBUG_INFO(priv, "Begin load bsm\n");
-
- priv->ucode_type = UCODE_RT;
-
- /* make sure bootstrap program is no larger than BSM's SRAM size */
- if (len > IWL49_MAX_BSM_SIZE)
- return -EINVAL;
-
- /* Tell bootstrap uCode where to find the "Initialize" uCode
- * in host DRAM ... host DRAM physical address bits 35:4 for 4965.
- * NOTE: iwl_init_alive_start() will replace these values,
- * after the "initialize" uCode has run, to point to
- * runtime/protocol instructions and backup data cache.
- */
- pinst = priv->ucode_init.p_addr >> 4;
- pdata = priv->ucode_init_data.p_addr >> 4;
- inst_len = priv->ucode_init.len;
- data_len = priv->ucode_init_data.len;
-
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG, inst_len);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG, data_len);
-
- /* Fill BSM memory with bootstrap instructions */
- for (reg_offset = BSM_SRAM_LOWER_BOUND;
- reg_offset < BSM_SRAM_LOWER_BOUND + len;
- reg_offset += sizeof(u32), image++)
- _iwl_legacy_write_prph(priv, reg_offset, le32_to_cpu(*image));
-
- ret = iwl4965_verify_bsm(priv);
- if (ret)
- return ret;
-
- /* Tell BSM to copy from BSM SRAM into instruction SRAM, when asked */
- iwl_legacy_write_prph(priv, BSM_WR_MEM_SRC_REG, 0x0);
- iwl_legacy_write_prph(priv,
- BSM_WR_MEM_DST_REG, IWL49_RTC_INST_LOWER_BOUND);
- iwl_legacy_write_prph(priv, BSM_WR_DWCOUNT_REG, len / sizeof(u32));
-
- /* Load bootstrap code into instruction SRAM now,
- * to prepare to load "initialize" uCode */
- iwl_legacy_write_prph(priv, BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START);
-
- /* Wait for load of bootstrap uCode to finish */
- for (i = 0; i < 100; i++) {
- done = iwl_legacy_read_prph(priv, BSM_WR_CTRL_REG);
- if (!(done & BSM_WR_CTRL_REG_BIT_START))
- break;
- udelay(10);
- }
- if (i < 100)
- IWL_DEBUG_INFO(priv, "BSM write complete, poll %d iterations\n", i);
- else {
- IWL_ERR(priv, "BSM write did not complete!\n");
- return -EIO;
- }
-
- /* Enable future boot loads whenever power management unit triggers it
- * (e.g. when powering back up after power-save shutdown) */
- iwl_legacy_write_prph(priv,
- BSM_WR_CTRL_REG, BSM_WR_CTRL_REG_BIT_START_EN);
-
-
- return 0;
-}
-
-/**
- * iwl4965_set_ucode_ptrs - Set uCode address location
- *
- * Tell initialization uCode where to find runtime uCode.
- *
- * BSM registers initially contain pointers to initialization uCode.
- * We need to replace them to load runtime uCode inst and data,
- * and to save runtime data when powering down.
- */
-static int iwl4965_set_ucode_ptrs(struct iwl_priv *priv)
-{
- dma_addr_t pinst;
- dma_addr_t pdata;
- int ret = 0;
-
- /* bits 35:4 for 4965 */
- pinst = priv->ucode_code.p_addr >> 4;
- pdata = priv->ucode_data_backup.p_addr >> 4;
-
- /* Tell bootstrap uCode where to find image to load */
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
- priv->ucode_data.len);
-
- /* Inst byte count must be last to set up, bit 31 signals uCode
- * that all new ptr/size info is in place */
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
- priv->ucode_code.len | BSM_DRAM_INST_LOAD);
- IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
-
- return ret;
-}
-
-/**
- * iwl4965_init_alive_start - Called after REPLY_ALIVE notification received
- *
- * Called after REPLY_ALIVE notification received from "initialize" uCode.
- *
- * The 4965 "initialize" ALIVE reply contains calibration data for:
- * Voltage, temperature, and MIMO tx gain correction, now stored in priv
- * (3945 does not contain this data).
- *
- * Tell "initialize" uCode to go ahead and load the runtime uCode.
-*/
-static void iwl4965_init_alive_start(struct iwl_priv *priv)
-{
- /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "initialize" alive if code weren't properly loaded. */
- if (iwl4965_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
- goto restart;
- }
-
- /* Calculate temperature */
- priv->temperature = iwl4965_hw_get_temperature(priv);
-
- /* Send pointers to protocol/runtime uCode image ... init code will
- * load and launch runtime uCode, which will send us another "Alive"
- * notification. */
- IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
- if (iwl4965_set_ucode_ptrs(priv)) {
- /* Runtime instruction load won't happen;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
- goto restart;
- }
- return;
-
-restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-static bool iw4965_is_ht40_channel(__le32 rxon_flags)
-{
- int chan_mod = le32_to_cpu(rxon_flags & RXON_FLG_CHANNEL_MODE_MSK)
- >> RXON_FLG_CHANNEL_MODE_POS;
- return ((chan_mod == CHANNEL_MODE_PURE_40) ||
- (chan_mod == CHANNEL_MODE_MIXED));
-}
-
-static void iwl4965_nic_config(struct iwl_priv *priv)
-{
- unsigned long flags;
- u16 radio_cfg;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- radio_cfg = iwl_legacy_eeprom_query16(priv, EEPROM_RADIO_CONFIG);
-
- /* write radio config values to register */
- if (EEPROM_RF_CFG_TYPE_MSK(radio_cfg) == EEPROM_4965_RF_CFG_TYPE_MAX)
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- EEPROM_RF_CFG_TYPE_MSK(radio_cfg) |
- EEPROM_RF_CFG_STEP_MSK(radio_cfg) |
- EEPROM_RF_CFG_DASH_MSK(radio_cfg));
-
- /* set CSR_HW_CONFIG_REG for uCode use */
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
- CSR_HW_IF_CONFIG_REG_BIT_MAC_SI);
-
- priv->calib_info = (struct iwl_eeprom_calib_info *)
- iwl_legacy_eeprom_query_addr(priv,
- EEPROM_4965_CALIB_TXPOWER_OFFSET);
-
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-/* Reset differential Rx gains in NIC to prepare for chain noise calibration.
- * Called after every association, but this runs only once!
- * ... once chain noise is calibrated the first time, it's good forever. */
-static void iwl4965_chain_noise_reset(struct iwl_priv *priv)
-{
- struct iwl_chain_noise_data *data = &(priv->chain_noise_data);
-
- if ((data->state == IWL_CHAIN_NOISE_ALIVE) &&
- iwl_legacy_is_any_associated(priv)) {
- struct iwl_calib_diff_gain_cmd cmd;
-
- /* clear data for chain noise calibration algorithm */
- data->chain_noise_a = 0;
- data->chain_noise_b = 0;
- data->chain_noise_c = 0;
- data->chain_signal_a = 0;
- data->chain_signal_b = 0;
- data->chain_signal_c = 0;
- data->beacon_count = 0;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.hdr.op_code = IWL_PHY_CALIBRATE_DIFF_GAIN_CMD;
- cmd.diff_gain_a = 0;
- cmd.diff_gain_b = 0;
- cmd.diff_gain_c = 0;
- if (iwl_legacy_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD,
- sizeof(cmd), &cmd))
- IWL_ERR(priv,
- "Could not send REPLY_PHY_CALIBRATION_CMD\n");
- data->state = IWL_CHAIN_NOISE_ACCUMULATE;
- IWL_DEBUG_CALIB(priv, "Run chain_noise_calibrate\n");
- }
-}
-
-static struct iwl_sensitivity_ranges iwl4965_sensitivity = {
- .min_nrg_cck = 97,
- .max_nrg_cck = 0, /* not used, set to 0 */
-
- .auto_corr_min_ofdm = 85,
- .auto_corr_min_ofdm_mrc = 170,
- .auto_corr_min_ofdm_x1 = 105,
- .auto_corr_min_ofdm_mrc_x1 = 220,
-
- .auto_corr_max_ofdm = 120,
- .auto_corr_max_ofdm_mrc = 210,
- .auto_corr_max_ofdm_x1 = 140,
- .auto_corr_max_ofdm_mrc_x1 = 270,
-
- .auto_corr_min_cck = 125,
- .auto_corr_max_cck = 200,
- .auto_corr_min_cck_mrc = 200,
- .auto_corr_max_cck_mrc = 400,
-
- .nrg_th_cck = 100,
- .nrg_th_ofdm = 100,
-
- .barker_corr_th_min = 190,
- .barker_corr_th_min_mrc = 390,
- .nrg_th_cca = 62,
-};
-
-static void iwl4965_set_ct_threshold(struct iwl_priv *priv)
-{
- /* want Kelvin */
- priv->hw_params.ct_kill_threshold =
- CELSIUS_TO_KELVIN(CT_KILL_THRESHOLD_LEGACY);
-}
-
-/**
- * iwl4965_hw_set_hw_params
- *
- * Called when initializing driver
- */
-static int iwl4965_hw_set_hw_params(struct iwl_priv *priv)
-{
- if (priv->cfg->mod_params->num_of_queues >= IWL_MIN_NUM_QUEUES &&
- priv->cfg->mod_params->num_of_queues <= IWL49_NUM_QUEUES)
- priv->cfg->base_params->num_of_queues =
- priv->cfg->mod_params->num_of_queues;
-
- priv->hw_params.max_txq_num = priv->cfg->base_params->num_of_queues;
- priv->hw_params.dma_chnl_num = FH49_TCSR_CHNL_NUM;
- priv->hw_params.scd_bc_tbls_size =
- priv->cfg->base_params->num_of_queues *
- sizeof(struct iwl4965_scd_bc_tbl);
- priv->hw_params.tfd_size = sizeof(struct iwl_tfd);
- priv->hw_params.max_stations = IWL4965_STATION_COUNT;
- priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWL4965_BROADCAST_ID;
- priv->hw_params.max_data_size = IWL49_RTC_DATA_SIZE;
- priv->hw_params.max_inst_size = IWL49_RTC_INST_SIZE;
- priv->hw_params.max_bsm_size = BSM_SRAM_SIZE;
- priv->hw_params.ht40_channel = BIT(IEEE80211_BAND_5GHZ);
-
- priv->hw_params.rx_wrt_ptr_reg = FH_RSCSR_CHNL0_WPTR;
-
- priv->hw_params.tx_chains_num = iwl4965_num_of_ant(priv->cfg->valid_tx_ant);
- priv->hw_params.rx_chains_num = iwl4965_num_of_ant(priv->cfg->valid_rx_ant);
- priv->hw_params.valid_tx_ant = priv->cfg->valid_tx_ant;
- priv->hw_params.valid_rx_ant = priv->cfg->valid_rx_ant;
-
- iwl4965_set_ct_threshold(priv);
-
- priv->hw_params.sens = &iwl4965_sensitivity;
- priv->hw_params.beacon_time_tsf_bits = IWL4965_EXT_BEACON_TIME_POS;
-
- return 0;
-}
-
-static s32 iwl4965_math_div_round(s32 num, s32 denom, s32 *res)
-{
- s32 sign = 1;
-
- if (num < 0) {
- sign = -sign;
- num = -num;
- }
- if (denom < 0) {
- sign = -sign;
- denom = -denom;
- }
- *res = 1;
- *res = ((num * 2 + denom) / (denom * 2)) * sign;
-
- return 1;
-}
-
-/**
- * iwl4965_get_voltage_compensation - Power supply voltage comp for txpower
- *
- * Determines power supply voltage compensation for txpower calculations.
- * Returns number of 1/2-dB steps to subtract from gain table index,
- * to compensate for difference between power supply voltage during
- * factory measurements, vs. current power supply voltage.
- *
- * Voltage indication is higher for lower voltage.
- * Lower voltage requires more gain (lower gain table index).
- */
-static s32 iwl4965_get_voltage_compensation(s32 eeprom_voltage,
- s32 current_voltage)
-{
- s32 comp = 0;
-
- if ((TX_POWER_IWL_ILLEGAL_VOLTAGE == eeprom_voltage) ||
- (TX_POWER_IWL_ILLEGAL_VOLTAGE == current_voltage))
- return 0;
-
- iwl4965_math_div_round(current_voltage - eeprom_voltage,
- TX_POWER_IWL_VOLTAGE_CODES_PER_03V, &comp);
-
- if (current_voltage > eeprom_voltage)
- comp *= 2;
- if ((comp < -2) || (comp > 2))
- comp = 0;
-
- return comp;
-}
-
-static s32 iwl4965_get_tx_atten_grp(u16 channel)
-{
- if (channel >= CALIB_IWL_TX_ATTEN_GR5_FCH &&
- channel <= CALIB_IWL_TX_ATTEN_GR5_LCH)
- return CALIB_CH_GROUP_5;
-
- if (channel >= CALIB_IWL_TX_ATTEN_GR1_FCH &&
- channel <= CALIB_IWL_TX_ATTEN_GR1_LCH)
- return CALIB_CH_GROUP_1;
-
- if (channel >= CALIB_IWL_TX_ATTEN_GR2_FCH &&
- channel <= CALIB_IWL_TX_ATTEN_GR2_LCH)
- return CALIB_CH_GROUP_2;
-
- if (channel >= CALIB_IWL_TX_ATTEN_GR3_FCH &&
- channel <= CALIB_IWL_TX_ATTEN_GR3_LCH)
- return CALIB_CH_GROUP_3;
-
- if (channel >= CALIB_IWL_TX_ATTEN_GR4_FCH &&
- channel <= CALIB_IWL_TX_ATTEN_GR4_LCH)
- return CALIB_CH_GROUP_4;
-
- return -EINVAL;
-}
-
-static u32 iwl4965_get_sub_band(const struct iwl_priv *priv, u32 channel)
-{
- s32 b = -1;
-
- for (b = 0; b < EEPROM_TX_POWER_BANDS; b++) {
- if (priv->calib_info->band_info[b].ch_from == 0)
- continue;
-
- if ((channel >= priv->calib_info->band_info[b].ch_from)
- && (channel <= priv->calib_info->band_info[b].ch_to))
- break;
- }
-
- return b;
-}
-
-static s32 iwl4965_interpolate_value(s32 x, s32 x1, s32 y1, s32 x2, s32 y2)
-{
- s32 val;
-
- if (x2 == x1)
- return y1;
- else {
- iwl4965_math_div_round((x2 - x) * (y1 - y2), (x2 - x1), &val);
- return val + y2;
- }
-}
-
-/**
- * iwl4965_interpolate_chan - Interpolate factory measurements for one channel
- *
- * Interpolates factory measurements from the two sample channels within a
- * sub-band, to apply to channel of interest. Interpolation is proportional to
- * differences in channel frequencies, which is proportional to differences
- * in channel number.
- */
-static int iwl4965_interpolate_chan(struct iwl_priv *priv, u32 channel,
- struct iwl_eeprom_calib_ch_info *chan_info)
-{
- s32 s = -1;
- u32 c;
- u32 m;
- const struct iwl_eeprom_calib_measure *m1;
- const struct iwl_eeprom_calib_measure *m2;
- struct iwl_eeprom_calib_measure *omeas;
- u32 ch_i1;
- u32 ch_i2;
-
- s = iwl4965_get_sub_band(priv, channel);
- if (s >= EEPROM_TX_POWER_BANDS) {
- IWL_ERR(priv, "Tx Power can not find channel %d\n", channel);
- return -1;
- }
-
- ch_i1 = priv->calib_info->band_info[s].ch1.ch_num;
- ch_i2 = priv->calib_info->band_info[s].ch2.ch_num;
- chan_info->ch_num = (u8) channel;
-
- IWL_DEBUG_TXPOWER(priv, "channel %d subband %d factory cal ch %d & %d\n",
- channel, s, ch_i1, ch_i2);
-
- for (c = 0; c < EEPROM_TX_POWER_TX_CHAINS; c++) {
- for (m = 0; m < EEPROM_TX_POWER_MEASUREMENTS; m++) {
- m1 = &(priv->calib_info->band_info[s].ch1.
- measurements[c][m]);
- m2 = &(priv->calib_info->band_info[s].ch2.
- measurements[c][m]);
- omeas = &(chan_info->measurements[c][m]);
-
- omeas->actual_pow =
- (u8) iwl4965_interpolate_value(channel, ch_i1,
- m1->actual_pow,
- ch_i2,
- m2->actual_pow);
- omeas->gain_idx =
- (u8) iwl4965_interpolate_value(channel, ch_i1,
- m1->gain_idx, ch_i2,
- m2->gain_idx);
- omeas->temperature =
- (u8) iwl4965_interpolate_value(channel, ch_i1,
- m1->temperature,
- ch_i2,
- m2->temperature);
- omeas->pa_det =
- (s8) iwl4965_interpolate_value(channel, ch_i1,
- m1->pa_det, ch_i2,
- m2->pa_det);
-
- IWL_DEBUG_TXPOWER(priv,
- "chain %d meas %d AP1=%d AP2=%d AP=%d\n", c, m,
- m1->actual_pow, m2->actual_pow, omeas->actual_pow);
- IWL_DEBUG_TXPOWER(priv,
- "chain %d meas %d NI1=%d NI2=%d NI=%d\n", c, m,
- m1->gain_idx, m2->gain_idx, omeas->gain_idx);
- IWL_DEBUG_TXPOWER(priv,
- "chain %d meas %d PA1=%d PA2=%d PA=%d\n", c, m,
- m1->pa_det, m2->pa_det, omeas->pa_det);
- IWL_DEBUG_TXPOWER(priv,
- "chain %d meas %d T1=%d T2=%d T=%d\n", c, m,
- m1->temperature, m2->temperature,
- omeas->temperature);
- }
- }
-
- return 0;
-}
-
-/* bit-rate-dependent table to prevent Tx distortion, in half-dB units,
- * for OFDM 6, 12, 18, 24, 36, 48, 54, 60 MBit, and CCK all rates. */
-static s32 back_off_table[] = {
- 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 20 MHz */
- 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 20 MHz */
- 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM SISO 40 MHz */
- 10, 10, 10, 10, 10, 15, 17, 20, /* OFDM MIMO 40 MHz */
- 10 /* CCK */
-};
-
-/* Thermal compensation values for txpower for various frequency ranges ...
- * ratios from 3:1 to 4.5:1 of degrees (Celsius) per half-dB gain adjust */
-static struct iwl4965_txpower_comp_entry {
- s32 degrees_per_05db_a;
- s32 degrees_per_05db_a_denom;
-} tx_power_cmp_tble[CALIB_CH_GROUP_MAX] = {
- {9, 2}, /* group 0 5.2, ch 34-43 */
- {4, 1}, /* group 1 5.2, ch 44-70 */
- {4, 1}, /* group 2 5.2, ch 71-124 */
- {4, 1}, /* group 3 5.2, ch 125-200 */
- {3, 1} /* group 4 2.4, ch all */
-};
-
-static s32 get_min_power_index(s32 rate_power_index, u32 band)
-{
- if (!band) {
- if ((rate_power_index & 7) <= 4)
- return MIN_TX_GAIN_INDEX_52GHZ_EXT;
- }
- return MIN_TX_GAIN_INDEX;
-}
-
-struct gain_entry {
- u8 dsp;
- u8 radio;
-};
-
-static const struct gain_entry gain_table[2][108] = {
- /* 5.2GHz power gain index table */
- {
- {123, 0x3F}, /* highest txpower */
- {117, 0x3F},
- {110, 0x3F},
- {104, 0x3F},
- {98, 0x3F},
- {110, 0x3E},
- {104, 0x3E},
- {98, 0x3E},
- {110, 0x3D},
- {104, 0x3D},
- {98, 0x3D},
- {110, 0x3C},
- {104, 0x3C},
- {98, 0x3C},
- {110, 0x3B},
- {104, 0x3B},
- {98, 0x3B},
- {110, 0x3A},
- {104, 0x3A},
- {98, 0x3A},
- {110, 0x39},
- {104, 0x39},
- {98, 0x39},
- {110, 0x38},
- {104, 0x38},
- {98, 0x38},
- {110, 0x37},
- {104, 0x37},
- {98, 0x37},
- {110, 0x36},
- {104, 0x36},
- {98, 0x36},
- {110, 0x35},
- {104, 0x35},
- {98, 0x35},
- {110, 0x34},
- {104, 0x34},
- {98, 0x34},
- {110, 0x33},
- {104, 0x33},
- {98, 0x33},
- {110, 0x32},
- {104, 0x32},
- {98, 0x32},
- {110, 0x31},
- {104, 0x31},
- {98, 0x31},
- {110, 0x30},
- {104, 0x30},
- {98, 0x30},
- {110, 0x25},
- {104, 0x25},
- {98, 0x25},
- {110, 0x24},
- {104, 0x24},
- {98, 0x24},
- {110, 0x23},
- {104, 0x23},
- {98, 0x23},
- {110, 0x22},
- {104, 0x18},
- {98, 0x18},
- {110, 0x17},
- {104, 0x17},
- {98, 0x17},
- {110, 0x16},
- {104, 0x16},
- {98, 0x16},
- {110, 0x15},
- {104, 0x15},
- {98, 0x15},
- {110, 0x14},
- {104, 0x14},
- {98, 0x14},
- {110, 0x13},
- {104, 0x13},
- {98, 0x13},
- {110, 0x12},
- {104, 0x08},
- {98, 0x08},
- {110, 0x07},
- {104, 0x07},
- {98, 0x07},
- {110, 0x06},
- {104, 0x06},
- {98, 0x06},
- {110, 0x05},
- {104, 0x05},
- {98, 0x05},
- {110, 0x04},
- {104, 0x04},
- {98, 0x04},
- {110, 0x03},
- {104, 0x03},
- {98, 0x03},
- {110, 0x02},
- {104, 0x02},
- {98, 0x02},
- {110, 0x01},
- {104, 0x01},
- {98, 0x01},
- {110, 0x00},
- {104, 0x00},
- {98, 0x00},
- {93, 0x00},
- {88, 0x00},
- {83, 0x00},
- {78, 0x00},
- },
- /* 2.4GHz power gain index table */
- {
- {110, 0x3f}, /* highest txpower */
- {104, 0x3f},
- {98, 0x3f},
- {110, 0x3e},
- {104, 0x3e},
- {98, 0x3e},
- {110, 0x3d},
- {104, 0x3d},
- {98, 0x3d},
- {110, 0x3c},
- {104, 0x3c},
- {98, 0x3c},
- {110, 0x3b},
- {104, 0x3b},
- {98, 0x3b},
- {110, 0x3a},
- {104, 0x3a},
- {98, 0x3a},
- {110, 0x39},
- {104, 0x39},
- {98, 0x39},
- {110, 0x38},
- {104, 0x38},
- {98, 0x38},
- {110, 0x37},
- {104, 0x37},
- {98, 0x37},
- {110, 0x36},
- {104, 0x36},
- {98, 0x36},
- {110, 0x35},
- {104, 0x35},
- {98, 0x35},
- {110, 0x34},
- {104, 0x34},
- {98, 0x34},
- {110, 0x33},
- {104, 0x33},
- {98, 0x33},
- {110, 0x32},
- {104, 0x32},
- {98, 0x32},
- {110, 0x31},
- {104, 0x31},
- {98, 0x31},
- {110, 0x30},
- {104, 0x30},
- {98, 0x30},
- {110, 0x6},
- {104, 0x6},
- {98, 0x6},
- {110, 0x5},
- {104, 0x5},
- {98, 0x5},
- {110, 0x4},
- {104, 0x4},
- {98, 0x4},
- {110, 0x3},
- {104, 0x3},
- {98, 0x3},
- {110, 0x2},
- {104, 0x2},
- {98, 0x2},
- {110, 0x1},
- {104, 0x1},
- {98, 0x1},
- {110, 0x0},
- {104, 0x0},
- {98, 0x0},
- {97, 0},
- {96, 0},
- {95, 0},
- {94, 0},
- {93, 0},
- {92, 0},
- {91, 0},
- {90, 0},
- {89, 0},
- {88, 0},
- {87, 0},
- {86, 0},
- {85, 0},
- {84, 0},
- {83, 0},
- {82, 0},
- {81, 0},
- {80, 0},
- {79, 0},
- {78, 0},
- {77, 0},
- {76, 0},
- {75, 0},
- {74, 0},
- {73, 0},
- {72, 0},
- {71, 0},
- {70, 0},
- {69, 0},
- {68, 0},
- {67, 0},
- {66, 0},
- {65, 0},
- {64, 0},
- {63, 0},
- {62, 0},
- {61, 0},
- {60, 0},
- {59, 0},
- }
-};
-
-static int iwl4965_fill_txpower_tbl(struct iwl_priv *priv, u8 band, u16 channel,
- u8 is_ht40, u8 ctrl_chan_high,
- struct iwl4965_tx_power_db *tx_power_tbl)
-{
- u8 saturation_power;
- s32 target_power;
- s32 user_target_power;
- s32 power_limit;
- s32 current_temp;
- s32 reg_limit;
- s32 current_regulatory;
- s32 txatten_grp = CALIB_CH_GROUP_MAX;
- int i;
- int c;
- const struct iwl_channel_info *ch_info = NULL;
- struct iwl_eeprom_calib_ch_info ch_eeprom_info;
- const struct iwl_eeprom_calib_measure *measurement;
- s16 voltage;
- s32 init_voltage;
- s32 voltage_compensation;
- s32 degrees_per_05db_num;
- s32 degrees_per_05db_denom;
- s32 factory_temp;
- s32 temperature_comp[2];
- s32 factory_gain_index[2];
- s32 factory_actual_pwr[2];
- s32 power_index;
-
- /* tx_power_user_lmt is in dBm, convert to half-dBm (half-dB units
- * are used for indexing into txpower table) */
- user_target_power = 2 * priv->tx_power_user_lmt;
-
- /* Get current (RXON) channel, band, width */
- IWL_DEBUG_TXPOWER(priv, "chan %d band %d is_ht40 %d\n", channel, band,
- is_ht40);
-
- ch_info = iwl_legacy_get_channel_info(priv, priv->band, channel);
-
- if (!iwl_legacy_is_channel_valid(ch_info))
- return -EINVAL;
-
- /* get txatten group, used to select 1) thermal txpower adjustment
- * and 2) mimo txpower balance between Tx chains. */
- txatten_grp = iwl4965_get_tx_atten_grp(channel);
- if (txatten_grp < 0) {
- IWL_ERR(priv, "Can't find txatten group for channel %d.\n",
- channel);
- return txatten_grp;
- }
-
- IWL_DEBUG_TXPOWER(priv, "channel %d belongs to txatten group %d\n",
- channel, txatten_grp);
-
- if (is_ht40) {
- if (ctrl_chan_high)
- channel -= 2;
- else
- channel += 2;
- }
-
- /* hardware txpower limits ...
- * saturation (clipping distortion) txpowers are in half-dBm */
- if (band)
- saturation_power = priv->calib_info->saturation_power24;
- else
- saturation_power = priv->calib_info->saturation_power52;
-
- if (saturation_power < IWL_TX_POWER_SATURATION_MIN ||
- saturation_power > IWL_TX_POWER_SATURATION_MAX) {
- if (band)
- saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_24;
- else
- saturation_power = IWL_TX_POWER_DEFAULT_SATURATION_52;
- }
-
- /* regulatory txpower limits ... reg_limit values are in half-dBm,
- * max_power_avg values are in dBm, convert * 2 */
- if (is_ht40)
- reg_limit = ch_info->ht40_max_power_avg * 2;
- else
- reg_limit = ch_info->max_power_avg * 2;
-
- if ((reg_limit < IWL_TX_POWER_REGULATORY_MIN) ||
- (reg_limit > IWL_TX_POWER_REGULATORY_MAX)) {
- if (band)
- reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_24;
- else
- reg_limit = IWL_TX_POWER_DEFAULT_REGULATORY_52;
- }
-
- /* Interpolate txpower calibration values for this channel,
- * based on factory calibration tests on spaced channels. */
- iwl4965_interpolate_chan(priv, channel, &ch_eeprom_info);
-
- /* calculate tx gain adjustment based on power supply voltage */
- voltage = le16_to_cpu(priv->calib_info->voltage);
- init_voltage = (s32)le32_to_cpu(priv->card_alive_init.voltage);
- voltage_compensation =
- iwl4965_get_voltage_compensation(voltage, init_voltage);
-
- IWL_DEBUG_TXPOWER(priv, "curr volt %d eeprom volt %d volt comp %d\n",
- init_voltage,
- voltage, voltage_compensation);
-
- /* get current temperature (Celsius) */
- current_temp = max(priv->temperature, IWL_TX_POWER_TEMPERATURE_MIN);
- current_temp = min(priv->temperature, IWL_TX_POWER_TEMPERATURE_MAX);
- current_temp = KELVIN_TO_CELSIUS(current_temp);
-
- /* select thermal txpower adjustment params, based on channel group
- * (same frequency group used for mimo txatten adjustment) */
- degrees_per_05db_num =
- tx_power_cmp_tble[txatten_grp].degrees_per_05db_a;
- degrees_per_05db_denom =
- tx_power_cmp_tble[txatten_grp].degrees_per_05db_a_denom;
-
- /* get per-chain txpower values from factory measurements */
- for (c = 0; c < 2; c++) {
- measurement = &ch_eeprom_info.measurements[c][1];
-
- /* txgain adjustment (in half-dB steps) based on difference
- * between factory and current temperature */
- factory_temp = measurement->temperature;
- iwl4965_math_div_round((current_temp - factory_temp) *
- degrees_per_05db_denom,
- degrees_per_05db_num,
- &temperature_comp[c]);
-
- factory_gain_index[c] = measurement->gain_idx;
- factory_actual_pwr[c] = measurement->actual_pow;
-
- IWL_DEBUG_TXPOWER(priv, "chain = %d\n", c);
- IWL_DEBUG_TXPOWER(priv, "fctry tmp %d, "
- "curr tmp %d, comp %d steps\n",
- factory_temp, current_temp,
- temperature_comp[c]);
-
- IWL_DEBUG_TXPOWER(priv, "fctry idx %d, fctry pwr %d\n",
- factory_gain_index[c],
- factory_actual_pwr[c]);
- }
-
- /* for each of 33 bit-rates (including 1 for CCK) */
- for (i = 0; i < POWER_TABLE_NUM_ENTRIES; i++) {
- u8 is_mimo_rate;
- union iwl4965_tx_power_dual_stream tx_power;
-
- /* for mimo, reduce each chain's txpower by half
- * (3dB, 6 steps), so total output power is regulatory
- * compliant. */
- if (i & 0x8) {
- current_regulatory = reg_limit -
- IWL_TX_POWER_MIMO_REGULATORY_COMPENSATION;
- is_mimo_rate = 1;
- } else {
- current_regulatory = reg_limit;
- is_mimo_rate = 0;
- }
-
- /* find txpower limit, either hardware or regulatory */
- power_limit = saturation_power - back_off_table[i];
- if (power_limit > current_regulatory)
- power_limit = current_regulatory;
-
- /* reduce user's txpower request if necessary
- * for this rate on this channel */
- target_power = user_target_power;
- if (target_power > power_limit)
- target_power = power_limit;
-
- IWL_DEBUG_TXPOWER(priv, "rate %d sat %d reg %d usr %d tgt %d\n",
- i, saturation_power - back_off_table[i],
- current_regulatory, user_target_power,
- target_power);
-
- /* for each of 2 Tx chains (radio transmitters) */
- for (c = 0; c < 2; c++) {
- s32 atten_value;
-
- if (is_mimo_rate)
- atten_value =
- (s32)le32_to_cpu(priv->card_alive_init.
- tx_atten[txatten_grp][c]);
- else
- atten_value = 0;
-
- /* calculate index; higher index means lower txpower */
- power_index = (u8) (factory_gain_index[c] -
- (target_power -
- factory_actual_pwr[c]) -
- temperature_comp[c] -
- voltage_compensation +
- atten_value);
-
-/* IWL_DEBUG_TXPOWER(priv, "calculated txpower index %d\n",
- power_index); */
-
- if (power_index < get_min_power_index(i, band))
- power_index = get_min_power_index(i, band);
-
- /* adjust 5 GHz index to support negative indexes */
- if (!band)
- power_index += 9;
-
- /* CCK, rate 32, reduce txpower for CCK */
- if (i == POWER_TABLE_CCK_ENTRY)
- power_index +=
- IWL_TX_POWER_CCK_COMPENSATION_C_STEP;
-
- /* stay within the table! */
- if (power_index > 107) {
- IWL_WARN(priv, "txpower index %d > 107\n",
- power_index);
- power_index = 107;
- }
- if (power_index < 0) {
- IWL_WARN(priv, "txpower index %d < 0\n",
- power_index);
- power_index = 0;
- }
-
- /* fill txpower command for this rate/chain */
- tx_power.s.radio_tx_gain[c] =
- gain_table[band][power_index].radio;
- tx_power.s.dsp_predis_atten[c] =
- gain_table[band][power_index].dsp;
-
- IWL_DEBUG_TXPOWER(priv, "chain %d mimo %d index %d "
- "gain 0x%02x dsp %d\n",
- c, atten_value, power_index,
- tx_power.s.radio_tx_gain[c],
- tx_power.s.dsp_predis_atten[c]);
- } /* for each chain */
-
- tx_power_tbl->power_tbl[i].dw = cpu_to_le32(tx_power.dw);
-
- } /* for each rate */
-
- return 0;
-}
-
-/**
- * iwl4965_send_tx_power - Configure the TXPOWER level user limit
- *
- * Uses the active RXON for channel, band, and characteristics (ht40, high)
- * The power limit is taken from priv->tx_power_user_lmt.
- */
-static int iwl4965_send_tx_power(struct iwl_priv *priv)
-{
- struct iwl4965_txpowertable_cmd cmd = { 0 };
- int ret;
- u8 band = 0;
- bool is_ht40 = false;
- u8 ctrl_chan_high = 0;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->status),
- "TX Power requested while scanning!\n"))
- return -EAGAIN;
-
- band = priv->band == IEEE80211_BAND_2GHZ;
-
- is_ht40 = iw4965_is_ht40_channel(ctx->active.flags);
-
- if (is_ht40 && (ctx->active.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
- ctrl_chan_high = 1;
-
- cmd.band = band;
- cmd.channel = ctx->active.channel;
-
- ret = iwl4965_fill_txpower_tbl(priv, band,
- le16_to_cpu(ctx->active.channel),
- is_ht40, ctrl_chan_high, &cmd.tx_power);
- if (ret)
- goto out;
-
- ret = iwl_legacy_send_cmd_pdu(priv,
- REPLY_TX_PWR_TABLE_CMD, sizeof(cmd), &cmd);
-
-out:
- return ret;
-}
-
-static int iwl4965_send_rxon_assoc(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- int ret = 0;
- struct iwl4965_rxon_assoc_cmd rxon_assoc;
- const struct iwl_legacy_rxon_cmd *rxon1 = &ctx->staging;
- const struct iwl_legacy_rxon_cmd *rxon2 = &ctx->active;
-
- if ((rxon1->flags == rxon2->flags) &&
- (rxon1->filter_flags == rxon2->filter_flags) &&
- (rxon1->cck_basic_rates == rxon2->cck_basic_rates) &&
- (rxon1->ofdm_ht_single_stream_basic_rates ==
- rxon2->ofdm_ht_single_stream_basic_rates) &&
- (rxon1->ofdm_ht_dual_stream_basic_rates ==
- rxon2->ofdm_ht_dual_stream_basic_rates) &&
- (rxon1->rx_chain == rxon2->rx_chain) &&
- (rxon1->ofdm_basic_rates == rxon2->ofdm_basic_rates)) {
- IWL_DEBUG_INFO(priv, "Using current RXON_ASSOC. Not resending.\n");
- return 0;
- }
-
- rxon_assoc.flags = ctx->staging.flags;
- rxon_assoc.filter_flags = ctx->staging.filter_flags;
- rxon_assoc.ofdm_basic_rates = ctx->staging.ofdm_basic_rates;
- rxon_assoc.cck_basic_rates = ctx->staging.cck_basic_rates;
- rxon_assoc.reserved = 0;
- rxon_assoc.ofdm_ht_single_stream_basic_rates =
- ctx->staging.ofdm_ht_single_stream_basic_rates;
- rxon_assoc.ofdm_ht_dual_stream_basic_rates =
- ctx->staging.ofdm_ht_dual_stream_basic_rates;
- rxon_assoc.rx_chain_select_flags = ctx->staging.rx_chain;
-
- ret = iwl_legacy_send_cmd_pdu_async(priv, REPLY_RXON_ASSOC,
- sizeof(rxon_assoc), &rxon_assoc, NULL);
-
- return ret;
-}
-
-static int iwl4965_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- /* cast away the const for active_rxon in this function */
- struct iwl_legacy_rxon_cmd *active_rxon = (void *)&ctx->active;
- int ret;
- bool new_assoc =
- !!(ctx->staging.filter_flags & RXON_FILTER_ASSOC_MSK);
-
- if (!iwl_legacy_is_alive(priv))
- return -EBUSY;
-
- if (!ctx->is_active)
- return 0;
-
- /* always get timestamp with Rx frame */
- ctx->staging.flags |= RXON_FLG_TSF2HOST_MSK;
-
- ret = iwl_legacy_check_rxon_cmd(priv, ctx);
- if (ret) {
- IWL_ERR(priv, "Invalid RXON configuration. Not committing.\n");
- return -EINVAL;
- }
-
- /*
- * receive commit_rxon request
- * abort any previous channel switch if still in process
- */
- if (test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status) &&
- (priv->switch_channel != ctx->staging.channel)) {
- IWL_DEBUG_11H(priv, "abort channel switch on %d\n",
- le16_to_cpu(priv->switch_channel));
- iwl_legacy_chswitch_done(priv, false);
- }
-
- /* If we don't need to send a full RXON, we can use
- * iwl_rxon_assoc_cmd which is used to reconfigure filter
- * and other flags for the current radio configuration. */
- if (!iwl_legacy_full_rxon_required(priv, ctx)) {
- ret = iwl_legacy_send_rxon_assoc(priv, ctx);
- if (ret) {
- IWL_ERR(priv, "Error setting RXON_ASSOC (%d)\n", ret);
- return ret;
- }
-
- memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
- iwl_legacy_print_rx_config_cmd(priv, ctx);
- /*
- * We do not commit tx power settings while channel changing,
- * do it now if tx power changed.
- */
- iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
- return 0;
- }
-
- /* If we are currently associated and the new config requires
- * an RXON_ASSOC and the new config wants the associated mask enabled,
- * we must clear the associated from the active configuration
- * before we apply the new config */
- if (iwl_legacy_is_associated_ctx(ctx) && new_assoc) {
- IWL_DEBUG_INFO(priv, "Toggling associated bit on current RXON\n");
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
-
- ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd,
- sizeof(struct iwl_legacy_rxon_cmd),
- active_rxon);
-
- /* If the mask clearing failed then we set
- * active_rxon back to what it was previously */
- if (ret) {
- active_rxon->filter_flags |= RXON_FILTER_ASSOC_MSK;
- IWL_ERR(priv, "Error clearing ASSOC_MSK (%d)\n", ret);
- return ret;
- }
- iwl_legacy_clear_ucode_stations(priv, ctx);
- iwl_legacy_restore_stations(priv, ctx);
- ret = iwl4965_restore_default_wep_keys(priv, ctx);
- if (ret) {
- IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
- return ret;
- }
- }
-
- IWL_DEBUG_INFO(priv, "Sending RXON\n"
- "* with%s RXON_FILTER_ASSOC_MSK\n"
- "* channel = %d\n"
- "* bssid = %pM\n",
- (new_assoc ? "" : "out"),
- le16_to_cpu(ctx->staging.channel),
- ctx->staging.bssid_addr);
-
- iwl_legacy_set_rxon_hwcrypto(priv, ctx,
- !priv->cfg->mod_params->sw_crypto);
-
- /* Apply the new configuration
- * RXON unassoc clears the station table in uCode so restoration of
- * stations is needed after it (the RXON command) completes
- */
- if (!new_assoc) {
- ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd,
- sizeof(struct iwl_legacy_rxon_cmd), &ctx->staging);
- if (ret) {
- IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
- return ret;
- }
- IWL_DEBUG_INFO(priv, "Return from !new_assoc RXON.\n");
- memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
- iwl_legacy_clear_ucode_stations(priv, ctx);
- iwl_legacy_restore_stations(priv, ctx);
- ret = iwl4965_restore_default_wep_keys(priv, ctx);
- if (ret) {
- IWL_ERR(priv, "Failed to restore WEP keys (%d)\n", ret);
- return ret;
- }
- }
- if (new_assoc) {
- priv->start_calib = 0;
- /* Apply the new configuration
- * RXON assoc doesn't clear the station table in uCode,
- */
- ret = iwl_legacy_send_cmd_pdu(priv, ctx->rxon_cmd,
- sizeof(struct iwl_legacy_rxon_cmd), &ctx->staging);
- if (ret) {
- IWL_ERR(priv, "Error setting new RXON (%d)\n", ret);
- return ret;
- }
- memcpy(active_rxon, &ctx->staging, sizeof(*active_rxon));
- }
- iwl_legacy_print_rx_config_cmd(priv, ctx);
-
- iwl4965_init_sensitivity(priv);
-
- /* If we issue a new RXON command which required a tune then we must
- * send a new TXPOWER command or we won't be able to Tx any frames */
- ret = iwl_legacy_set_tx_power(priv, priv->tx_power_next, true);
- if (ret) {
- IWL_ERR(priv, "Error sending TX power (%d)\n", ret);
- return ret;
- }
-
- return 0;
-}
-
-static int iwl4965_hw_channel_switch(struct iwl_priv *priv,
- struct ieee80211_channel_switch *ch_switch)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- int rc;
- u8 band = 0;
- bool is_ht40 = false;
- u8 ctrl_chan_high = 0;
- struct iwl4965_channel_switch_cmd cmd;
- const struct iwl_channel_info *ch_info;
- u32 switch_time_in_usec, ucode_switch_time;
- u16 ch;
- u32 tsf_low;
- u8 switch_count;
- u16 beacon_interval = le16_to_cpu(ctx->timing.beacon_interval);
- struct ieee80211_vif *vif = ctx->vif;
- band = priv->band == IEEE80211_BAND_2GHZ;
-
- is_ht40 = iw4965_is_ht40_channel(ctx->staging.flags);
-
- if (is_ht40 &&
- (ctx->staging.flags & RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK))
- ctrl_chan_high = 1;
-
- cmd.band = band;
- cmd.expect_beacon = 0;
- ch = ch_switch->channel->hw_value;
- cmd.channel = cpu_to_le16(ch);
- cmd.rxon_flags = ctx->staging.flags;
- cmd.rxon_filter_flags = ctx->staging.filter_flags;
- switch_count = ch_switch->count;
- tsf_low = ch_switch->timestamp & 0x0ffffffff;
- /*
- * calculate the ucode channel switch time
- * adding TSF as one of the factor for when to switch
- */
- if ((priv->ucode_beacon_time > tsf_low) && beacon_interval) {
- if (switch_count > ((priv->ucode_beacon_time - tsf_low) /
- beacon_interval)) {
- switch_count -= (priv->ucode_beacon_time -
- tsf_low) / beacon_interval;
- } else
- switch_count = 0;
- }
- if (switch_count <= 1)
- cmd.switch_time = cpu_to_le32(priv->ucode_beacon_time);
- else {
- switch_time_in_usec =
- vif->bss_conf.beacon_int * switch_count * TIME_UNIT;
- ucode_switch_time = iwl_legacy_usecs_to_beacons(priv,
- switch_time_in_usec,
- beacon_interval);
- cmd.switch_time = iwl_legacy_add_beacon_time(priv,
- priv->ucode_beacon_time,
- ucode_switch_time,
- beacon_interval);
- }
- IWL_DEBUG_11H(priv, "uCode time for the switch is 0x%x\n",
- cmd.switch_time);
- ch_info = iwl_legacy_get_channel_info(priv, priv->band, ch);
- if (ch_info)
- cmd.expect_beacon = iwl_legacy_is_channel_radar(ch_info);
- else {
- IWL_ERR(priv, "invalid channel switch from %u to %u\n",
- ctx->active.channel, ch);
- return -EFAULT;
- }
-
- rc = iwl4965_fill_txpower_tbl(priv, band, ch, is_ht40,
- ctrl_chan_high, &cmd.tx_power);
- if (rc) {
- IWL_DEBUG_11H(priv, "error:%d fill txpower_tbl\n", rc);
- return rc;
- }
-
- return iwl_legacy_send_cmd_pdu(priv,
- REPLY_CHANNEL_SWITCH, sizeof(cmd), &cmd);
-}
-
-/**
- * iwl4965_txq_update_byte_cnt_tbl - Set up entry in Tx byte-count array
- */
-static void iwl4965_txq_update_byte_cnt_tbl(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- u16 byte_cnt)
-{
- struct iwl4965_scd_bc_tbl *scd_bc_tbl = priv->scd_bc_tbls.addr;
- int txq_id = txq->q.id;
- int write_ptr = txq->q.write_ptr;
- int len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
- __le16 bc_ent;
-
- WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
-
- bc_ent = cpu_to_le16(len & 0xFFF);
- /* Set up byte count within first 256 entries */
- scd_bc_tbl[txq_id].tfd_offset[write_ptr] = bc_ent;
-
- /* If within first 64 entries, duplicate at end */
- if (write_ptr < TFD_QUEUE_SIZE_BC_DUP)
- scd_bc_tbl[txq_id].
- tfd_offset[TFD_QUEUE_SIZE_MAX + write_ptr] = bc_ent;
-}
-
-/**
- * iwl4965_hw_get_temperature - return the calibrated temperature (in Kelvin)
- * @statistics: Provides the temperature reading from the uCode
- *
- * A return of <0 indicates bogus data in the statistics
- */
-static int iwl4965_hw_get_temperature(struct iwl_priv *priv)
-{
- s32 temperature;
- s32 vt;
- s32 R1, R2, R3;
- u32 R4;
-
- if (test_bit(STATUS_TEMPERATURE, &priv->status) &&
- (priv->_4965.statistics.flag &
- STATISTICS_REPLY_FLG_HT40_MODE_MSK)) {
- IWL_DEBUG_TEMP(priv, "Running HT40 temperature calibration\n");
- R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[1]);
- R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[1]);
- R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[1]);
- R4 = le32_to_cpu(priv->card_alive_init.therm_r4[1]);
- } else {
- IWL_DEBUG_TEMP(priv, "Running temperature calibration\n");
- R1 = (s32)le32_to_cpu(priv->card_alive_init.therm_r1[0]);
- R2 = (s32)le32_to_cpu(priv->card_alive_init.therm_r2[0]);
- R3 = (s32)le32_to_cpu(priv->card_alive_init.therm_r3[0]);
- R4 = le32_to_cpu(priv->card_alive_init.therm_r4[0]);
- }
-
- /*
- * Temperature is only 23 bits, so sign extend out to 32.
- *
- * NOTE If we haven't received a statistics notification yet
- * with an updated temperature, use R4 provided to us in the
- * "initialize" ALIVE response.
- */
- if (!test_bit(STATUS_TEMPERATURE, &priv->status))
- vt = sign_extend32(R4, 23);
- else
- vt = sign_extend32(le32_to_cpu(priv->_4965.statistics.
- general.common.temperature), 23);
-
- IWL_DEBUG_TEMP(priv, "Calib values R[1-3]: %d %d %d R4: %d\n", R1, R2, R3, vt);
-
- if (R3 == R1) {
- IWL_ERR(priv, "Calibration conflict R1 == R3\n");
- return -1;
- }
-
- /* Calculate temperature in degrees Kelvin, adjust by 97%.
- * Add offset to center the adjustment around 0 degrees Centigrade. */
- temperature = TEMPERATURE_CALIB_A_VAL * (vt - R2);
- temperature /= (R3 - R1);
- temperature = (temperature * 97) / 100 + TEMPERATURE_CALIB_KELVIN_OFFSET;
-
- IWL_DEBUG_TEMP(priv, "Calibrated temperature: %dK, %dC\n",
- temperature, KELVIN_TO_CELSIUS(temperature));
-
- return temperature;
-}
-
-/* Adjust Txpower only if temperature variance is greater than threshold. */
-#define IWL_TEMPERATURE_THRESHOLD 3
-
-/**
- * iwl4965_is_temp_calib_needed - determines if new calibration is needed
- *
- * If the temperature changed has changed sufficiently, then a recalibration
- * is needed.
- *
- * Assumes caller will replace priv->last_temperature once calibration
- * executed.
- */
-static int iwl4965_is_temp_calib_needed(struct iwl_priv *priv)
-{
- int temp_diff;
-
- if (!test_bit(STATUS_STATISTICS, &priv->status)) {
- IWL_DEBUG_TEMP(priv, "Temperature not updated -- no statistics.\n");
- return 0;
- }
-
- temp_diff = priv->temperature - priv->last_temperature;
-
- /* get absolute value */
- if (temp_diff < 0) {
- IWL_DEBUG_POWER(priv, "Getting cooler, delta %d\n", temp_diff);
- temp_diff = -temp_diff;
- } else if (temp_diff == 0)
- IWL_DEBUG_POWER(priv, "Temperature unchanged\n");
- else
- IWL_DEBUG_POWER(priv, "Getting warmer, delta %d\n", temp_diff);
-
- if (temp_diff < IWL_TEMPERATURE_THRESHOLD) {
- IWL_DEBUG_POWER(priv, " => thermal txpower calib not needed\n");
- return 0;
- }
-
- IWL_DEBUG_POWER(priv, " => thermal txpower calib needed\n");
-
- return 1;
-}
-
-static void iwl4965_temperature_calib(struct iwl_priv *priv)
-{
- s32 temp;
-
- temp = iwl4965_hw_get_temperature(priv);
- if (IWL_TX_POWER_TEMPERATURE_OUT_OF_RANGE(temp))
- return;
-
- if (priv->temperature != temp) {
- if (priv->temperature)
- IWL_DEBUG_TEMP(priv, "Temperature changed "
- "from %dC to %dC\n",
- KELVIN_TO_CELSIUS(priv->temperature),
- KELVIN_TO_CELSIUS(temp));
- else
- IWL_DEBUG_TEMP(priv, "Temperature "
- "initialized to %dC\n",
- KELVIN_TO_CELSIUS(temp));
- }
-
- priv->temperature = temp;
- set_bit(STATUS_TEMPERATURE, &priv->status);
-
- if (!priv->disable_tx_power_cal &&
- unlikely(!test_bit(STATUS_SCANNING, &priv->status)) &&
- iwl4965_is_temp_calib_needed(priv))
- queue_work(priv->workqueue, &priv->txpower_work);
-}
-
-static u16 iwl4965_get_hcmd_size(u8 cmd_id, u16 len)
-{
- switch (cmd_id) {
- case REPLY_RXON:
- return (u16) sizeof(struct iwl4965_rxon_cmd);
- default:
- return len;
- }
-}
-
-static u16 iwl4965_build_addsta_hcmd(const struct iwl_legacy_addsta_cmd *cmd,
- u8 *data)
-{
- struct iwl4965_addsta_cmd *addsta = (struct iwl4965_addsta_cmd *)data;
- addsta->mode = cmd->mode;
- memcpy(&addsta->sta, &cmd->sta, sizeof(struct sta_id_modify));
- memcpy(&addsta->key, &cmd->key, sizeof(struct iwl4965_keyinfo));
- addsta->station_flags = cmd->station_flags;
- addsta->station_flags_msk = cmd->station_flags_msk;
- addsta->tid_disable_tx = cmd->tid_disable_tx;
- addsta->add_immediate_ba_tid = cmd->add_immediate_ba_tid;
- addsta->remove_immediate_ba_tid = cmd->remove_immediate_ba_tid;
- addsta->add_immediate_ba_ssn = cmd->add_immediate_ba_ssn;
- addsta->sleep_tx_count = cmd->sleep_tx_count;
- addsta->reserved1 = cpu_to_le16(0);
- addsta->reserved2 = cpu_to_le16(0);
-
- return (u16)sizeof(struct iwl4965_addsta_cmd);
-}
-
-static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp)
-{
- return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN;
-}
-
-/**
- * iwl4965_tx_status_reply_tx - Handle Tx response for frames in aggregation queue
- */
-static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv,
- struct iwl_ht_agg *agg,
- struct iwl4965_tx_resp *tx_resp,
- int txq_id, u16 start_idx)
-{
- u16 status;
- struct agg_tx_status *frame_status = tx_resp->u.agg_status;
- struct ieee80211_tx_info *info = NULL;
- struct ieee80211_hdr *hdr = NULL;
- u32 rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags);
- int i, sh, idx;
- u16 seq;
- if (agg->wait_for_ba)
- IWL_DEBUG_TX_REPLY(priv, "got tx response w/o block-ack\n");
-
- agg->frame_count = tx_resp->frame_count;
- agg->start_idx = start_idx;
- agg->rate_n_flags = rate_n_flags;
- agg->bitmap = 0;
-
- /* num frames attempted by Tx command */
- if (agg->frame_count == 1) {
- /* Only one frame was attempted; no block-ack will arrive */
- status = le16_to_cpu(frame_status[0].status);
- idx = start_idx;
-
- IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n",
- agg->frame_count, agg->start_idx, idx);
-
- info = IEEE80211_SKB_CB(priv->txq[txq_id].txb[idx].skb);
- info->status.rates[0].count = tx_resp->failure_frame + 1;
- info->flags &= ~IEEE80211_TX_CTL_AMPDU;
- info->flags |= iwl4965_tx_status_to_mac80211(status);
- iwl4965_hwrate_to_tx_control(priv, rate_n_flags, info);
-
- IWL_DEBUG_TX_REPLY(priv, "1 Frame 0x%x failure :%d\n",
- status & 0xff, tx_resp->failure_frame);
- IWL_DEBUG_TX_REPLY(priv, "Rate Info rate_n_flags=%x\n", rate_n_flags);
-
- agg->wait_for_ba = 0;
- } else {
- /* Two or more frames were attempted; expect block-ack */
- u64 bitmap = 0;
- int start = agg->start_idx;
-
- /* Construct bit-map of pending frames within Tx window */
- for (i = 0; i < agg->frame_count; i++) {
- u16 sc;
- status = le16_to_cpu(frame_status[i].status);
- seq = le16_to_cpu(frame_status[i].sequence);
- idx = SEQ_TO_INDEX(seq);
- txq_id = SEQ_TO_QUEUE(seq);
-
- if (status & (AGG_TX_STATE_FEW_BYTES_MSK |
- AGG_TX_STATE_ABORT_MSK))
- continue;
-
- IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, txq_id=%d idx=%d\n",
- agg->frame_count, txq_id, idx);
-
- hdr = iwl_legacy_tx_queue_get_hdr(priv, txq_id, idx);
- if (!hdr) {
- IWL_ERR(priv,
- "BUG_ON idx doesn't point to valid skb"
- " idx=%d, txq_id=%d\n", idx, txq_id);
- return -1;
- }
-
- sc = le16_to_cpu(hdr->seq_ctrl);
- if (idx != (SEQ_TO_SN(sc) & 0xff)) {
- IWL_ERR(priv,
- "BUG_ON idx doesn't match seq control"
- " idx=%d, seq_idx=%d, seq=%d\n",
- idx, SEQ_TO_SN(sc), hdr->seq_ctrl);
- return -1;
- }
-
- IWL_DEBUG_TX_REPLY(priv, "AGG Frame i=%d idx %d seq=%d\n",
- i, idx, SEQ_TO_SN(sc));
-
- sh = idx - start;
- if (sh > 64) {
- sh = (start - idx) + 0xff;
- bitmap = bitmap << sh;
- sh = 0;
- start = idx;
- } else if (sh < -64)
- sh = 0xff - (start - idx);
- else if (sh < 0) {
- sh = start - idx;
- start = idx;
- bitmap = bitmap << sh;
- sh = 0;
- }
- bitmap |= 1ULL << sh;
- IWL_DEBUG_TX_REPLY(priv, "start=%d bitmap=0x%llx\n",
- start, (unsigned long long)bitmap);
- }
-
- agg->bitmap = bitmap;
- agg->start_idx = start;
- IWL_DEBUG_TX_REPLY(priv, "Frames %d start_idx=%d bitmap=0x%llx\n",
- agg->frame_count, agg->start_idx,
- (unsigned long long)agg->bitmap);
-
- if (bitmap)
- agg->wait_for_ba = 1;
- }
- return 0;
-}
-
-static u8 iwl4965_find_station(struct iwl_priv *priv, const u8 *addr)
-{
- int i;
- int start = 0;
- int ret = IWL_INVALID_STATION;
- unsigned long flags;
-
- if ((priv->iw_mode == NL80211_IFTYPE_ADHOC))
- start = IWL_STA_ID;
-
- if (is_broadcast_ether_addr(addr))
- return priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- for (i = start; i < priv->hw_params.max_stations; i++)
- if (priv->stations[i].used &&
- (!compare_ether_addr(priv->stations[i].sta.sta.addr,
- addr))) {
- ret = i;
- goto out;
- }
-
- IWL_DEBUG_ASSOC_LIMIT(priv, "can not find STA %pM total %d\n",
- addr, priv->num_stations);
-
- out:
- /*
- * It may be possible that more commands interacting with stations
- * arrive before we completed processing the adding of
- * station
- */
- if (ret != IWL_INVALID_STATION &&
- (!(priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) ||
- ((priv->stations[ret].used & IWL_STA_UCODE_ACTIVE) &&
- (priv->stations[ret].used & IWL_STA_UCODE_INPROGRESS)))) {
- IWL_ERR(priv, "Requested station info for sta %d before ready.\n",
- ret);
- ret = IWL_INVALID_STATION;
- }
- spin_unlock_irqrestore(&priv->sta_lock, flags);
- return ret;
-}
-
-static int iwl4965_get_ra_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
-{
- if (priv->iw_mode == NL80211_IFTYPE_STATION) {
- return IWL_AP_ID;
- } else {
- u8 *da = ieee80211_get_DA(hdr);
- return iwl4965_find_station(priv, da);
- }
-}
-
-/**
- * iwl4965_rx_reply_tx - Handle standard (non-aggregation) Tx response
- */
-static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u16 sequence = le16_to_cpu(pkt->hdr.sequence);
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct ieee80211_hdr *hdr;
- struct ieee80211_tx_info *info;
- struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0];
- u32 status = le32_to_cpu(tx_resp->u.status);
- int uninitialized_var(tid);
- int sta_id;
- int freed;
- u8 *qc = NULL;
- unsigned long flags;
-
- if ((index >= txq->q.n_bd) || (iwl_legacy_queue_used(&txq->q, index) == 0)) {
- IWL_ERR(priv, "Read index for DMA queue txq_id (%d) index %d "
- "is out of range [0-%d] %d %d\n", txq_id,
- index, txq->q.n_bd, txq->q.write_ptr,
- txq->q.read_ptr);
- return;
- }
-
- txq->time_stamp = jiffies;
- info = IEEE80211_SKB_CB(txq->txb[txq->q.read_ptr].skb);
- memset(&info->status, 0, sizeof(info->status));
-
- hdr = iwl_legacy_tx_queue_get_hdr(priv, txq_id, index);
- if (ieee80211_is_data_qos(hdr->frame_control)) {
- qc = ieee80211_get_qos_ctl(hdr);
- tid = qc[0] & 0xf;
- }
-
- sta_id = iwl4965_get_ra_sta_id(priv, hdr);
- if (txq->sched_retry && unlikely(sta_id == IWL_INVALID_STATION)) {
- IWL_ERR(priv, "Station not known\n");
- return;
- }
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- if (txq->sched_retry) {
- const u32 scd_ssn = iwl4965_get_scd_ssn(tx_resp);
- struct iwl_ht_agg *agg = NULL;
- WARN_ON(!qc);
-
- agg = &priv->stations[sta_id].tid[tid].agg;
-
- iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index);
-
- /* check if BAR is needed */
- if ((tx_resp->frame_count == 1) && !iwl4965_is_tx_success(status))
- info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
-
- if (txq->q.read_ptr != (scd_ssn & 0xff)) {
- index = iwl_legacy_queue_dec_wrap(scd_ssn & 0xff,
- txq->q.n_bd);
- IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
- "%d index %d\n", scd_ssn , index);
- freed = iwl4965_tx_queue_reclaim(priv, txq_id, index);
- if (qc)
- iwl4965_free_tfds_in_queue(priv, sta_id,
- tid, freed);
-
- if (priv->mac80211_registered &&
- (iwl_legacy_queue_space(&txq->q) > txq->q.low_mark)
- && (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA))
- iwl_legacy_wake_queue(priv, txq);
- }
- } else {
- info->status.rates[0].count = tx_resp->failure_frame + 1;
- info->flags |= iwl4965_tx_status_to_mac80211(status);
- iwl4965_hwrate_to_tx_control(priv,
- le32_to_cpu(tx_resp->rate_n_flags),
- info);
-
- IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) "
- "rate_n_flags 0x%x retries %d\n",
- txq_id,
- iwl4965_get_tx_fail_reason(status), status,
- le32_to_cpu(tx_resp->rate_n_flags),
- tx_resp->failure_frame);
-
- freed = iwl4965_tx_queue_reclaim(priv, txq_id, index);
- if (qc && likely(sta_id != IWL_INVALID_STATION))
- iwl4965_free_tfds_in_queue(priv, sta_id, tid, freed);
- else if (sta_id == IWL_INVALID_STATION)
- IWL_DEBUG_TX_REPLY(priv, "Station not known\n");
-
- if (priv->mac80211_registered &&
- (iwl_legacy_queue_space(&txq->q) > txq->q.low_mark))
- iwl_legacy_wake_queue(priv, txq);
- }
- if (qc && likely(sta_id != IWL_INVALID_STATION))
- iwl4965_txq_check_empty(priv, sta_id, tid, txq_id);
-
- iwl4965_check_abort_status(priv, tx_resp->frame_count, status);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-}
-
-static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl4965_beacon_notif *beacon = (void *)pkt->u.raw;
- u8 rate __maybe_unused =
- iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
-
- IWL_DEBUG_RX(priv, "beacon status %#x, retries:%d ibssmgr:%d "
- "tsf:0x%.8x%.8x rate:%d\n",
- le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-
- priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
-}
-
-/* Set up 4965-specific Rx frame reply handlers */
-static void iwl4965_rx_handler_setup(struct iwl_priv *priv)
-{
- /* Legacy Rx frames */
- priv->rx_handlers[REPLY_RX] = iwl4965_rx_reply_rx;
- /* Tx response */
- priv->rx_handlers[REPLY_TX] = iwl4965_rx_reply_tx;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
-}
-
-static struct iwl_hcmd_ops iwl4965_hcmd = {
- .rxon_assoc = iwl4965_send_rxon_assoc,
- .commit_rxon = iwl4965_commit_rxon,
- .set_rxon_chain = iwl4965_set_rxon_chain,
-};
-
-static void iwl4965_post_scan(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- /*
- * Since setting the RXON may have been deferred while
- * performing the scan, fire one off if needed
- */
- if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
- iwl_legacy_commit_rxon(priv, ctx);
-}
-
-static void iwl4965_post_associate(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct ieee80211_vif *vif = ctx->vif;
- struct ieee80211_conf *conf = NULL;
- int ret = 0;
-
- if (!vif || !priv->is_open)
- return;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- iwl_legacy_scan_cancel_timeout(priv, 200);
-
- conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw);
-
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_legacy_commit_rxon(priv, ctx);
-
- ret = iwl_legacy_send_rxon_timing(priv, ctx);
- if (ret)
- IWL_WARN(priv, "RXON timing - "
- "Attempting to continue.\n");
-
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
- iwl_legacy_set_rxon_ht(priv, &priv->current_ht_config);
-
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
-
- ctx->staging.assoc_id = cpu_to_le16(vif->bss_conf.aid);
-
- IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
- vif->bss_conf.aid, vif->bss_conf.beacon_int);
-
- if (vif->bss_conf.use_short_preamble)
- ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
- if (vif->bss_conf.use_short_slot)
- ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
- }
-
- iwl_legacy_commit_rxon(priv, ctx);
-
- IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
- vif->bss_conf.aid, ctx->active.bssid_addr);
-
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- break;
- case NL80211_IFTYPE_ADHOC:
- iwl4965_send_beacon_cmd(priv);
- break;
- default:
- IWL_ERR(priv, "%s Should not be called in %d mode\n",
- __func__, vif->type);
- break;
- }
-
- /* the chain noise calibration will enabled PM upon completion
- * If chain noise has already been run, then we need to enable
- * power management here */
- if (priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE)
- iwl_legacy_power_update_mode(priv, false);
-
- /* Enable Rx differential gain and sensitivity calibrations */
- iwl4965_chain_noise_reset(priv);
- priv->start_calib = 1;
-}
-
-static void iwl4965_config_ap(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct ieee80211_vif *vif = ctx->vif;
- int ret = 0;
-
- lockdep_assert_held(&priv->mutex);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- /* The following should be done only at AP bring up */
- if (!iwl_legacy_is_associated_ctx(ctx)) {
-
- /* RXON - unassoc (to set timing command) */
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_legacy_commit_rxon(priv, ctx);
-
- /* RXON Timing */
- ret = iwl_legacy_send_rxon_timing(priv, ctx);
- if (ret)
- IWL_WARN(priv, "RXON timing failed - "
- "Attempting to continue.\n");
-
- /* AP has all antennas */
- priv->chain_noise_data.active_chains =
- priv->hw_params.valid_rx_ant;
- iwl_legacy_set_rxon_ht(priv, &priv->current_ht_config);
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
-
- ctx->staging.assoc_id = 0;
-
- if (vif->bss_conf.use_short_preamble)
- ctx->staging.flags |=
- RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags &=
- ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
- if (vif->bss_conf.use_short_slot)
- ctx->staging.flags |=
- RXON_FLG_SHORT_SLOT_MSK;
- else
- ctx->staging.flags &=
- ~RXON_FLG_SHORT_SLOT_MSK;
- }
- /* need to send beacon cmd before committing assoc RXON! */
- iwl4965_send_beacon_cmd(priv);
- /* restore RXON assoc */
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
- iwl_legacy_commit_rxon(priv, ctx);
- }
- iwl4965_send_beacon_cmd(priv);
-}
-
-static struct iwl_hcmd_utils_ops iwl4965_hcmd_utils = {
- .get_hcmd_size = iwl4965_get_hcmd_size,
- .build_addsta_hcmd = iwl4965_build_addsta_hcmd,
- .request_scan = iwl4965_request_scan,
- .post_scan = iwl4965_post_scan,
-};
-
-static struct iwl_lib_ops iwl4965_lib = {
- .set_hw_params = iwl4965_hw_set_hw_params,
- .txq_update_byte_cnt_tbl = iwl4965_txq_update_byte_cnt_tbl,
- .txq_attach_buf_to_tfd = iwl4965_hw_txq_attach_buf_to_tfd,
- .txq_free_tfd = iwl4965_hw_txq_free_tfd,
- .txq_init = iwl4965_hw_tx_queue_init,
- .rx_handler_setup = iwl4965_rx_handler_setup,
- .is_valid_rtc_data_addr = iwl4965_hw_valid_rtc_data_addr,
- .init_alive_start = iwl4965_init_alive_start,
- .load_ucode = iwl4965_load_bsm,
- .dump_nic_error_log = iwl4965_dump_nic_error_log,
- .dump_fh = iwl4965_dump_fh,
- .set_channel_switch = iwl4965_hw_channel_switch,
- .apm_ops = {
- .init = iwl_legacy_apm_init,
- .config = iwl4965_nic_config,
- },
- .eeprom_ops = {
- .regulatory_bands = {
- EEPROM_REGULATORY_BAND_1_CHANNELS,
- EEPROM_REGULATORY_BAND_2_CHANNELS,
- EEPROM_REGULATORY_BAND_3_CHANNELS,
- EEPROM_REGULATORY_BAND_4_CHANNELS,
- EEPROM_REGULATORY_BAND_5_CHANNELS,
- EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS,
- EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS
- },
- .acquire_semaphore = iwl4965_eeprom_acquire_semaphore,
- .release_semaphore = iwl4965_eeprom_release_semaphore,
- },
- .send_tx_power = iwl4965_send_tx_power,
- .update_chain_flags = iwl4965_update_chain_flags,
- .temp_ops = {
- .temperature = iwl4965_temperature_calib,
- },
- .debugfs_ops = {
- .rx_stats_read = iwl4965_ucode_rx_stats_read,
- .tx_stats_read = iwl4965_ucode_tx_stats_read,
- .general_stats_read = iwl4965_ucode_general_stats_read,
- },
-};
-
-static const struct iwl_legacy_ops iwl4965_legacy_ops = {
- .post_associate = iwl4965_post_associate,
- .config_ap = iwl4965_config_ap,
- .manage_ibss_station = iwl4965_manage_ibss_station,
- .update_bcast_stations = iwl4965_update_bcast_stations,
-};
-
-struct ieee80211_ops iwl4965_hw_ops = {
- .tx = iwl4965_mac_tx,
- .start = iwl4965_mac_start,
- .stop = iwl4965_mac_stop,
- .add_interface = iwl_legacy_mac_add_interface,
- .remove_interface = iwl_legacy_mac_remove_interface,
- .change_interface = iwl_legacy_mac_change_interface,
- .config = iwl_legacy_mac_config,
- .configure_filter = iwl4965_configure_filter,
- .set_key = iwl4965_mac_set_key,
- .update_tkip_key = iwl4965_mac_update_tkip_key,
- .conf_tx = iwl_legacy_mac_conf_tx,
- .reset_tsf = iwl_legacy_mac_reset_tsf,
- .bss_info_changed = iwl_legacy_mac_bss_info_changed,
- .ampdu_action = iwl4965_mac_ampdu_action,
- .hw_scan = iwl_legacy_mac_hw_scan,
- .sta_add = iwl4965_mac_sta_add,
- .sta_remove = iwl_legacy_mac_sta_remove,
- .channel_switch = iwl4965_mac_channel_switch,
- .tx_last_beacon = iwl_legacy_mac_tx_last_beacon,
-};
-
-static const struct iwl_ops iwl4965_ops = {
- .lib = &iwl4965_lib,
- .hcmd = &iwl4965_hcmd,
- .utils = &iwl4965_hcmd_utils,
- .led = &iwl4965_led_ops,
- .legacy = &iwl4965_legacy_ops,
- .ieee80211_ops = &iwl4965_hw_ops,
-};
-
-static struct iwl_base_params iwl4965_base_params = {
- .eeprom_size = IWL4965_EEPROM_IMG_SIZE,
- .num_of_queues = IWL49_NUM_QUEUES,
- .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES,
- .pll_cfg_val = 0,
- .set_l0s = true,
- .use_bsm = true,
- .led_compensation = 61,
- .chain_noise_num_beacons = IWL4965_CAL_NUM_BEACONS,
- .wd_timeout = IWL_DEF_WD_TIMEOUT,
- .temperature_kelvin = true,
- .ucode_tracing = true,
- .sensitivity_calib_by_driver = true,
- .chain_noise_calib_by_driver = true,
-};
-
-struct iwl_cfg iwl4965_cfg = {
- .name = "Intel(R) Wireless WiFi Link 4965AGN",
- .fw_name_pre = IWL4965_FW_PRE,
- .ucode_api_max = IWL4965_UCODE_API_MAX,
- .ucode_api_min = IWL4965_UCODE_API_MIN,
- .sku = IWL_SKU_A|IWL_SKU_G|IWL_SKU_N,
- .valid_tx_ant = ANT_AB,
- .valid_rx_ant = ANT_ABC,
- .eeprom_ver = EEPROM_4965_EEPROM_VERSION,
- .eeprom_calib_ver = EEPROM_4965_TX_POWER_VERSION,
- .ops = &iwl4965_ops,
- .mod_params = &iwl4965_mod_params,
- .base_params = &iwl4965_base_params,
- .led_mode = IWL_LED_BLINK,
- /*
- * Force use of chains B and C for scan RX on 5 GHz band
- * because the device has off-channel reception on chain A.
- */
- .scan_rx_antennas[IEEE80211_BAND_5GHZ] = ANT_BC,
-};
-
-/* Module firmware */
-MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX));
diff --git a/drivers/net/wireless/iwlegacy/iwl-4965.h b/drivers/net/wireless/iwlegacy/iwl-4965.h
deleted file mode 100644
index 01f8163..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-4965.h
+++ /dev/null
@@ -1,282 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-#ifndef __iwl_4965_h__
-#define __iwl_4965_h__
-
-#include "iwl-dev.h"
-
-/* configuration for the _4965 devices */
-extern struct iwl_cfg iwl4965_cfg;
-
-extern struct iwl_mod_params iwl4965_mod_params;
-
-extern struct ieee80211_ops iwl4965_hw_ops;
-
-/* tx queue */
-void iwl4965_free_tfds_in_queue(struct iwl_priv *priv,
- int sta_id, int tid, int freed);
-
-/* RXON */
-void iwl4965_set_rxon_chain(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-
-/* uCode */
-int iwl4965_verify_ucode(struct iwl_priv *priv);
-
-/* lib */
-void iwl4965_check_abort_status(struct iwl_priv *priv,
- u8 frame_count, u32 status);
-
-void iwl4965_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
-int iwl4965_rx_init(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
-int iwl4965_hw_nic_init(struct iwl_priv *priv);
-int iwl4965_dump_fh(struct iwl_priv *priv, char **buf, bool display);
-
-/* rx */
-void iwl4965_rx_queue_restock(struct iwl_priv *priv);
-void iwl4965_rx_replenish(struct iwl_priv *priv);
-void iwl4965_rx_replenish_now(struct iwl_priv *priv);
-void iwl4965_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq);
-int iwl4965_rxq_stop(struct iwl_priv *priv);
-int iwl4965_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band);
-void iwl4965_rx_reply_rx(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl4965_rx_reply_rx_phy(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl4965_rx_handle(struct iwl_priv *priv);
-
-/* tx */
-void iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq);
-int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- dma_addr_t addr, u16 len, u8 reset, u8 pad);
-int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
-void iwl4965_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
- struct ieee80211_tx_info *info);
-int iwl4965_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
-int iwl4965_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn);
-int iwl4965_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
- struct ieee80211_sta *sta, u16 tid);
-int iwl4965_txq_check_empty(struct iwl_priv *priv,
- int sta_id, u8 tid, int txq_id);
-void iwl4965_rx_reply_compressed_ba(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-int iwl4965_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index);
-void iwl4965_hw_txq_ctx_free(struct iwl_priv *priv);
-int iwl4965_txq_ctx_alloc(struct iwl_priv *priv);
-void iwl4965_txq_ctx_reset(struct iwl_priv *priv);
-void iwl4965_txq_ctx_stop(struct iwl_priv *priv);
-void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask);
-
-/*
- * Acquire priv->lock before calling this function !
- */
-void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index);
-/**
- * iwl4965_tx_queue_set_status - (optionally) start Tx/Cmd queue
- * @tx_fifo_id: Tx DMA/FIFO channel (range 0-7) that the queue will feed
- * @scd_retry: (1) Indicates queue will be used in aggregation mode
- *
- * NOTE: Acquire priv->lock before calling this function !
- */
-void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- int tx_fifo_id, int scd_retry);
-
-static inline u32 iwl4965_tx_status_to_mac80211(u32 status)
-{
- status &= TX_STATUS_MSK;
-
- switch (status) {
- case TX_STATUS_SUCCESS:
- case TX_STATUS_DIRECT_DONE:
- return IEEE80211_TX_STAT_ACK;
- case TX_STATUS_FAIL_DEST_PS:
- return IEEE80211_TX_STAT_TX_FILTERED;
- default:
- return 0;
- }
-}
-
-static inline bool iwl4965_is_tx_success(u32 status)
-{
- status &= TX_STATUS_MSK;
- return (status == TX_STATUS_SUCCESS) ||
- (status == TX_STATUS_DIRECT_DONE);
-}
-
-u8 iwl4965_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid);
-
-/* rx */
-void iwl4965_rx_missed_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-bool iwl4965_good_plcp_health(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
-void iwl4965_rx_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl4965_reply_statistics(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-
-/* scan */
-int iwl4965_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif);
-
-/* station mgmt */
-int iwl4965_manage_ibss_station(struct iwl_priv *priv,
- struct ieee80211_vif *vif, bool add);
-
-/* hcmd */
-int iwl4965_send_beacon_cmd(struct iwl_priv *priv);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-const char *iwl4965_get_tx_fail_reason(u32 status);
-#else
-static inline const char *
-iwl4965_get_tx_fail_reason(u32 status) { return ""; }
-#endif
-
-/* station management */
-int iwl4965_alloc_bcast_station(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-int iwl4965_add_bssid_station(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- const u8 *addr, u8 *sta_id_r);
-int iwl4965_remove_default_wep_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *key);
-int iwl4965_set_default_wep_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *key);
-int iwl4965_restore_default_wep_keys(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-int iwl4965_set_dynamic_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *key, u8 sta_id);
-int iwl4965_remove_dynamic_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *key, u8 sta_id);
-void iwl4965_update_tkip_key(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_key_conf *keyconf,
- struct ieee80211_sta *sta, u32 iv32, u16 *phase1key);
-int iwl4965_sta_tx_modify_enable_tid(struct iwl_priv *priv,
- int sta_id, int tid);
-int iwl4965_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta,
- int tid, u16 ssn);
-int iwl4965_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta,
- int tid);
-void iwl4965_sta_modify_sleep_tx_count(struct iwl_priv *priv,
- int sta_id, int cnt);
-int iwl4965_update_bcast_stations(struct iwl_priv *priv);
-
-/* rate */
-static inline u32 iwl4965_ant_idx_to_flags(u8 ant_idx)
-{
- return BIT(ant_idx) << RATE_MCS_ANT_POS;
-}
-
-static inline u8 iwl4965_hw_get_rate(__le32 rate_n_flags)
-{
- return le32_to_cpu(rate_n_flags) & 0xFF;
-}
-
-static inline __le32 iwl4965_hw_set_rate_n_flags(u8 rate, u32 flags)
-{
- return cpu_to_le32(flags|(u32)rate);
-}
-
-/* eeprom */
-void iwl4965_eeprom_get_mac(const struct iwl_priv *priv, u8 *mac);
-int iwl4965_eeprom_acquire_semaphore(struct iwl_priv *priv);
-void iwl4965_eeprom_release_semaphore(struct iwl_priv *priv);
-int iwl4965_eeprom_check_version(struct iwl_priv *priv);
-
-/* mac80211 handlers (for 4965) */
-void iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
-int iwl4965_mac_start(struct ieee80211_hw *hw);
-void iwl4965_mac_stop(struct ieee80211_hw *hw);
-void iwl4965_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast);
-int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key);
-void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_key_conf *keyconf,
- struct ieee80211_sta *sta,
- u32 iv32, u16 *phase1key);
-int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_ampdu_mlme_action action,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn,
- u8 buf_size);
-int iwl4965_mac_sta_add(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta);
-void iwl4965_mac_channel_switch(struct ieee80211_hw *hw,
- struct ieee80211_channel_switch *ch_switch);
-
-#endif /* __iwl_4965_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-core.c b/drivers/net/wireless/iwlegacy/iwl-core.c
deleted file mode 100644
index 2bd5659..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-core.c
+++ /dev/null
@@ -1,2661 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/etherdevice.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <net/mac80211.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-debug.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-power.h"
-#include "iwl-sta.h"
-#include "iwl-helpers.h"
-
-
-MODULE_DESCRIPTION("iwl-legacy: common functions for 3945 and 4965");
-MODULE_VERSION(IWLWIFI_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
-MODULE_LICENSE("GPL");
-
-/*
- * set bt_coex_active to true, uCode will do kill/defer
- * every time the priority line is asserted (BT is sending signals on the
- * priority line in the PCIx).
- * set bt_coex_active to false, uCode will ignore the BT activity and
- * perform the normal operation
- *
- * User might experience transmit issue on some platform due to WiFi/BT
- * co-exist problem. The possible behaviors are:
- * Able to scan and finding all the available AP
- * Not able to associate with any AP
- * On those platforms, WiFi communication can be restored by set
- * "bt_coex_active" module parameter to "false"
- *
- * default: bt_coex_active = true (BT_COEX_ENABLE)
- */
-static bool bt_coex_active = true;
-module_param(bt_coex_active, bool, S_IRUGO);
-MODULE_PARM_DESC(bt_coex_active, "enable wifi/bluetooth co-exist");
-
-u32 iwlegacy_debug_level;
-EXPORT_SYMBOL(iwlegacy_debug_level);
-
-const u8 iwlegacy_bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-EXPORT_SYMBOL(iwlegacy_bcast_addr);
-
-
-/* This function both allocates and initializes hw and priv. */
-struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg)
-{
- struct iwl_priv *priv;
- /* mac80211 allocates memory for this device instance, including
- * space for this driver's private structure */
- struct ieee80211_hw *hw;
-
- hw = ieee80211_alloc_hw(sizeof(struct iwl_priv),
- cfg->ops->ieee80211_ops);
- if (hw == NULL) {
- pr_err("%s: Can not allocate network device\n",
- cfg->name);
- goto out;
- }
-
- priv = hw->priv;
- priv->hw = hw;
-
-out:
- return hw;
-}
-EXPORT_SYMBOL(iwl_legacy_alloc_all);
-
-#define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
-#define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
-static void iwl_legacy_init_ht_hw_capab(const struct iwl_priv *priv,
- struct ieee80211_sta_ht_cap *ht_info,
- enum ieee80211_band band)
-{
- u16 max_bit_rate = 0;
- u8 rx_chains_num = priv->hw_params.rx_chains_num;
- u8 tx_chains_num = priv->hw_params.tx_chains_num;
-
- ht_info->cap = 0;
- memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
-
- ht_info->ht_supported = true;
-
- ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
- max_bit_rate = MAX_BIT_RATE_20_MHZ;
- if (priv->hw_params.ht40_channel & BIT(band)) {
- ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
- ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
- ht_info->mcs.rx_mask[4] = 0x01;
- max_bit_rate = MAX_BIT_RATE_40_MHZ;
- }
-
- if (priv->cfg->mod_params->amsdu_size_8K)
- ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
-
- ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
- ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
-
- ht_info->mcs.rx_mask[0] = 0xFF;
- if (rx_chains_num >= 2)
- ht_info->mcs.rx_mask[1] = 0xFF;
- if (rx_chains_num >= 3)
- ht_info->mcs.rx_mask[2] = 0xFF;
-
- /* Highest supported Rx data rate */
- max_bit_rate *= rx_chains_num;
- WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
- ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
-
- /* Tx MCS capabilities */
- ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
- if (tx_chains_num != rx_chains_num) {
- ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
- ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
- IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
- }
-}
-
-/**
- * iwl_legacy_init_geos - Initialize mac80211's geo/channel info based from eeprom
- */
-int iwl_legacy_init_geos(struct iwl_priv *priv)
-{
- struct iwl_channel_info *ch;
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *channels;
- struct ieee80211_channel *geo_ch;
- struct ieee80211_rate *rates;
- int i = 0;
- s8 max_tx_power = 0;
-
- if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
- priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
- IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
- set_bit(STATUS_GEO_CONFIGURED, &priv->status);
- return 0;
- }
-
- channels = kzalloc(sizeof(struct ieee80211_channel) *
- priv->channel_count, GFP_KERNEL);
- if (!channels)
- return -ENOMEM;
-
- rates = kzalloc((sizeof(struct ieee80211_rate) * IWL_RATE_COUNT_LEGACY),
- GFP_KERNEL);
- if (!rates) {
- kfree(channels);
- return -ENOMEM;
- }
-
- /* 5.2GHz channels start after the 2.4GHz channels */
- sband = &priv->bands[IEEE80211_BAND_5GHZ];
- sband->channels = &channels[ARRAY_SIZE(iwlegacy_eeprom_band_1)];
- /* just OFDM */
- sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
- sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
-
- if (priv->cfg->sku & IWL_SKU_N)
- iwl_legacy_init_ht_hw_capab(priv, &sband->ht_cap,
- IEEE80211_BAND_5GHZ);
-
- sband = &priv->bands[IEEE80211_BAND_2GHZ];
- sband->channels = channels;
- /* OFDM & CCK */
- sband->bitrates = rates;
- sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
-
- if (priv->cfg->sku & IWL_SKU_N)
- iwl_legacy_init_ht_hw_capab(priv, &sband->ht_cap,
- IEEE80211_BAND_2GHZ);
-
- priv->ieee_channels = channels;
- priv->ieee_rates = rates;
-
- for (i = 0; i < priv->channel_count; i++) {
- ch = &priv->channel_info[i];
-
- if (!iwl_legacy_is_channel_valid(ch))
- continue;
-
- sband = &priv->bands[ch->band];
-
- geo_ch = &sband->channels[sband->n_channels++];
-
- geo_ch->center_freq =
- ieee80211_channel_to_frequency(ch->channel, ch->band);
- geo_ch->max_power = ch->max_power_avg;
- geo_ch->max_antenna_gain = 0xff;
- geo_ch->hw_value = ch->channel;
-
- if (iwl_legacy_is_channel_valid(ch)) {
- if (!(ch->flags & EEPROM_CHANNEL_IBSS))
- geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
-
- if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
- geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
-
- if (ch->flags & EEPROM_CHANNEL_RADAR)
- geo_ch->flags |= IEEE80211_CHAN_RADAR;
-
- geo_ch->flags |= ch->ht40_extension_channel;
-
- if (ch->max_power_avg > max_tx_power)
- max_tx_power = ch->max_power_avg;
- } else {
- geo_ch->flags |= IEEE80211_CHAN_DISABLED;
- }
-
- IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
- ch->channel, geo_ch->center_freq,
- iwl_legacy_is_channel_a_band(ch) ? "5.2" : "2.4",
- geo_ch->flags & IEEE80211_CHAN_DISABLED ?
- "restricted" : "valid",
- geo_ch->flags);
- }
-
- priv->tx_power_device_lmt = max_tx_power;
- priv->tx_power_user_lmt = max_tx_power;
- priv->tx_power_next = max_tx_power;
-
- if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
- priv->cfg->sku & IWL_SKU_A) {
- IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
- "Please send your PCI ID 0x%04X:0x%04X to maintainer.\n",
- priv->pci_dev->device,
- priv->pci_dev->subsystem_device);
- priv->cfg->sku &= ~IWL_SKU_A;
- }
-
- IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
- priv->bands[IEEE80211_BAND_2GHZ].n_channels,
- priv->bands[IEEE80211_BAND_5GHZ].n_channels);
-
- set_bit(STATUS_GEO_CONFIGURED, &priv->status);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_init_geos);
-
-/*
- * iwl_legacy_free_geos - undo allocations in iwl_legacy_init_geos
- */
-void iwl_legacy_free_geos(struct iwl_priv *priv)
-{
- kfree(priv->ieee_channels);
- kfree(priv->ieee_rates);
- clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
-}
-EXPORT_SYMBOL(iwl_legacy_free_geos);
-
-static bool iwl_legacy_is_channel_extension(struct iwl_priv *priv,
- enum ieee80211_band band,
- u16 channel, u8 extension_chan_offset)
-{
- const struct iwl_channel_info *ch_info;
-
- ch_info = iwl_legacy_get_channel_info(priv, band, channel);
- if (!iwl_legacy_is_channel_valid(ch_info))
- return false;
-
- if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_ABOVE)
- return !(ch_info->ht40_extension_channel &
- IEEE80211_CHAN_NO_HT40PLUS);
- else if (extension_chan_offset == IEEE80211_HT_PARAM_CHA_SEC_BELOW)
- return !(ch_info->ht40_extension_channel &
- IEEE80211_CHAN_NO_HT40MINUS);
-
- return false;
-}
-
-bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_sta_ht_cap *ht_cap)
-{
- if (!ctx->ht.enabled || !ctx->ht.is_40mhz)
- return false;
-
- /*
- * We do not check for IEEE80211_HT_CAP_SUP_WIDTH_20_40
- * the bit will not set if it is pure 40MHz case
- */
- if (ht_cap && !ht_cap->ht_supported)
- return false;
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- if (priv->disable_ht40)
- return false;
-#endif
-
- return iwl_legacy_is_channel_extension(priv, priv->band,
- le16_to_cpu(ctx->staging.channel),
- ctx->ht.extension_chan_offset);
-}
-EXPORT_SYMBOL(iwl_legacy_is_ht40_tx_allowed);
-
-static u16 iwl_legacy_adjust_beacon_interval(u16 beacon_val, u16 max_beacon_val)
-{
- u16 new_val;
- u16 beacon_factor;
-
- /*
- * If mac80211 hasn't given us a beacon interval, program
- * the default into the device.
- */
- if (!beacon_val)
- return DEFAULT_BEACON_INTERVAL;
-
- /*
- * If the beacon interval we obtained from the peer
- * is too large, we'll have to wake up more often
- * (and in IBSS case, we'll beacon too much)
- *
- * For example, if max_beacon_val is 4096, and the
- * requested beacon interval is 7000, we'll have to
- * use 3500 to be able to wake up on the beacons.
- *
- * This could badly influence beacon detection stats.
- */
-
- beacon_factor = (beacon_val + max_beacon_val) / max_beacon_val;
- new_val = beacon_val / beacon_factor;
-
- if (!new_val)
- new_val = max_beacon_val;
-
- return new_val;
-}
-
-int
-iwl_legacy_send_rxon_timing(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- u64 tsf;
- s32 interval_tm, rem;
- struct ieee80211_conf *conf = NULL;
- u16 beacon_int;
- struct ieee80211_vif *vif = ctx->vif;
-
- conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw);
-
- lockdep_assert_held(&priv->mutex);
-
- memset(&ctx->timing, 0, sizeof(struct iwl_rxon_time_cmd));
-
- ctx->timing.timestamp = cpu_to_le64(priv->timestamp);
- ctx->timing.listen_interval = cpu_to_le16(conf->listen_interval);
-
- beacon_int = vif ? vif->bss_conf.beacon_int : 0;
-
- /*
- * TODO: For IBSS we need to get atim_window from mac80211,
- * for now just always use 0
- */
- ctx->timing.atim_window = 0;
-
- beacon_int = iwl_legacy_adjust_beacon_interval(beacon_int,
- priv->hw_params.max_beacon_itrvl * TIME_UNIT);
- ctx->timing.beacon_interval = cpu_to_le16(beacon_int);
-
- tsf = priv->timestamp; /* tsf is modifed by do_div: copy it */
- interval_tm = beacon_int * TIME_UNIT;
- rem = do_div(tsf, interval_tm);
- ctx->timing.beacon_init_val = cpu_to_le32(interval_tm - rem);
-
- ctx->timing.dtim_period = vif ? (vif->bss_conf.dtim_period ?: 1) : 1;
-
- IWL_DEBUG_ASSOC(priv,
- "beacon interval %d beacon timer %d beacon tim %d\n",
- le16_to_cpu(ctx->timing.beacon_interval),
- le32_to_cpu(ctx->timing.beacon_init_val),
- le16_to_cpu(ctx->timing.atim_window));
-
- return iwl_legacy_send_cmd_pdu(priv, ctx->rxon_timing_cmd,
- sizeof(ctx->timing), &ctx->timing);
-}
-EXPORT_SYMBOL(iwl_legacy_send_rxon_timing);
-
-void
-iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- int hw_decrypt)
-{
- struct iwl_legacy_rxon_cmd *rxon = &ctx->staging;
-
- if (hw_decrypt)
- rxon->filter_flags &= ~RXON_FILTER_DIS_DECRYPT_MSK;
- else
- rxon->filter_flags |= RXON_FILTER_DIS_DECRYPT_MSK;
-
-}
-EXPORT_SYMBOL(iwl_legacy_set_rxon_hwcrypto);
-
-/* validate RXON structure is valid */
-int
-iwl_legacy_check_rxon_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- struct iwl_legacy_rxon_cmd *rxon = &ctx->staging;
- bool error = false;
-
- if (rxon->flags & RXON_FLG_BAND_24G_MSK) {
- if (rxon->flags & RXON_FLG_TGJ_NARROW_BAND_MSK) {
- IWL_WARN(priv, "check 2.4G: wrong narrow\n");
- error = true;
- }
- if (rxon->flags & RXON_FLG_RADAR_DETECT_MSK) {
- IWL_WARN(priv, "check 2.4G: wrong radar\n");
- error = true;
- }
- } else {
- if (!(rxon->flags & RXON_FLG_SHORT_SLOT_MSK)) {
- IWL_WARN(priv, "check 5.2G: not short slot!\n");
- error = true;
- }
- if (rxon->flags & RXON_FLG_CCK_MSK) {
- IWL_WARN(priv, "check 5.2G: CCK!\n");
- error = true;
- }
- }
- if ((rxon->node_addr[0] | rxon->bssid_addr[0]) & 0x1) {
- IWL_WARN(priv, "mac/bssid mcast!\n");
- error = true;
- }
-
- /* make sure basic rates 6Mbps and 1Mbps are supported */
- if ((rxon->ofdm_basic_rates & IWL_RATE_6M_MASK) == 0 &&
- (rxon->cck_basic_rates & IWL_RATE_1M_MASK) == 0) {
- IWL_WARN(priv, "neither 1 nor 6 are basic\n");
- error = true;
- }
-
- if (le16_to_cpu(rxon->assoc_id) > 2007) {
- IWL_WARN(priv, "aid > 2007\n");
- error = true;
- }
-
- if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_SHORT_SLOT_MSK)) {
- IWL_WARN(priv, "CCK and short slot\n");
- error = true;
- }
-
- if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK))
- == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) {
- IWL_WARN(priv, "CCK and auto detect");
- error = true;
- }
-
- if ((rxon->flags & (RXON_FLG_AUTO_DETECT_MSK |
- RXON_FLG_TGG_PROTECT_MSK)) ==
- RXON_FLG_TGG_PROTECT_MSK) {
- IWL_WARN(priv, "TGg but no auto-detect\n");
- error = true;
- }
-
- if (error)
- IWL_WARN(priv, "Tuning to channel %d\n",
- le16_to_cpu(rxon->channel));
-
- if (error) {
- IWL_ERR(priv, "Invalid RXON\n");
- return -EINVAL;
- }
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_check_rxon_cmd);
-
-/**
- * iwl_legacy_full_rxon_required - check if full RXON (vs RXON_ASSOC) cmd is needed
- * @priv: staging_rxon is compared to active_rxon
- *
- * If the RXON structure is changing enough to require a new tune,
- * or is clearing the RXON_FILTER_ASSOC_MSK, then return 1 to indicate that
- * a new tune (full RXON command, rather than RXON_ASSOC cmd) is required.
- */
-int iwl_legacy_full_rxon_required(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- const struct iwl_legacy_rxon_cmd *staging = &ctx->staging;
- const struct iwl_legacy_rxon_cmd *active = &ctx->active;
-
-#define CHK(cond) \
- if ((cond)) { \
- IWL_DEBUG_INFO(priv, "need full RXON - " #cond "\n"); \
- return 1; \
- }
-
-#define CHK_NEQ(c1, c2) \
- if ((c1) != (c2)) { \
- IWL_DEBUG_INFO(priv, "need full RXON - " \
- #c1 " != " #c2 " - %d != %d\n", \
- (c1), (c2)); \
- return 1; \
- }
-
- /* These items are only settable from the full RXON command */
- CHK(!iwl_legacy_is_associated_ctx(ctx));
- CHK(compare_ether_addr(staging->bssid_addr, active->bssid_addr));
- CHK(compare_ether_addr(staging->node_addr, active->node_addr));
- CHK(compare_ether_addr(staging->wlap_bssid_addr,
- active->wlap_bssid_addr));
- CHK_NEQ(staging->dev_type, active->dev_type);
- CHK_NEQ(staging->channel, active->channel);
- CHK_NEQ(staging->air_propagation, active->air_propagation);
- CHK_NEQ(staging->ofdm_ht_single_stream_basic_rates,
- active->ofdm_ht_single_stream_basic_rates);
- CHK_NEQ(staging->ofdm_ht_dual_stream_basic_rates,
- active->ofdm_ht_dual_stream_basic_rates);
- CHK_NEQ(staging->assoc_id, active->assoc_id);
-
- /* flags, filter_flags, ofdm_basic_rates, and cck_basic_rates can
- * be updated with the RXON_ASSOC command -- however only some
- * flag transitions are allowed using RXON_ASSOC */
-
- /* Check if we are not switching bands */
- CHK_NEQ(staging->flags & RXON_FLG_BAND_24G_MSK,
- active->flags & RXON_FLG_BAND_24G_MSK);
-
- /* Check if we are switching association toggle */
- CHK_NEQ(staging->filter_flags & RXON_FILTER_ASSOC_MSK,
- active->filter_flags & RXON_FILTER_ASSOC_MSK);
-
-#undef CHK
-#undef CHK_NEQ
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_full_rxon_required);
-
-u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- /*
- * Assign the lowest rate -- should really get this from
- * the beacon skb from mac80211.
- */
- if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK)
- return IWL_RATE_1M_PLCP;
- else
- return IWL_RATE_6M_PLCP;
-}
-EXPORT_SYMBOL(iwl_legacy_get_lowest_plcp);
-
-static void _iwl_legacy_set_rxon_ht(struct iwl_priv *priv,
- struct iwl_ht_config *ht_conf,
- struct iwl_rxon_context *ctx)
-{
- struct iwl_legacy_rxon_cmd *rxon = &ctx->staging;
-
- if (!ctx->ht.enabled) {
- rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
- RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK |
- RXON_FLG_HT40_PROT_MSK |
- RXON_FLG_HT_PROT_MSK);
- return;
- }
-
- rxon->flags |= cpu_to_le32(ctx->ht.protection <<
- RXON_FLG_HT_OPERATING_MODE_POS);
-
- /* Set up channel bandwidth:
- * 20 MHz only, 20/40 mixed or pure 40 if ht40 ok */
- /* clear the HT channel mode before set the mode */
- rxon->flags &= ~(RXON_FLG_CHANNEL_MODE_MSK |
- RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
- if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, NULL)) {
- /* pure ht40 */
- if (ctx->ht.protection ==
- IEEE80211_HT_OP_MODE_PROTECTION_20MHZ) {
- rxon->flags |= RXON_FLG_CHANNEL_MODE_PURE_40;
- /* Note: control channel is opposite of extension channel */
- switch (ctx->ht.extension_chan_offset) {
- case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
- rxon->flags &=
- ~RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
- rxon->flags |=
- RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
- break;
- }
- } else {
- /* Note: control channel is opposite of extension channel */
- switch (ctx->ht.extension_chan_offset) {
- case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
- rxon->flags &=
- ~(RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK);
- rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
- rxon->flags |=
- RXON_FLG_CTRL_CHANNEL_LOC_HI_MSK;
- rxon->flags |= RXON_FLG_CHANNEL_MODE_MIXED;
- break;
- case IEEE80211_HT_PARAM_CHA_SEC_NONE:
- default:
- /* channel location only valid if in Mixed mode */
- IWL_ERR(priv,
- "invalid extension channel offset\n");
- break;
- }
- }
- } else {
- rxon->flags |= RXON_FLG_CHANNEL_MODE_LEGACY;
- }
-
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
-
- IWL_DEBUG_ASSOC(priv, "rxon flags 0x%X operation mode :0x%X "
- "extension channel offset 0x%x\n",
- le32_to_cpu(rxon->flags), ctx->ht.protection,
- ctx->ht.extension_chan_offset);
-}
-
-void iwl_legacy_set_rxon_ht(struct iwl_priv *priv, struct iwl_ht_config *ht_conf)
-{
- struct iwl_rxon_context *ctx;
-
- for_each_context(priv, ctx)
- _iwl_legacy_set_rxon_ht(priv, ht_conf, ctx);
-}
-EXPORT_SYMBOL(iwl_legacy_set_rxon_ht);
-
-/* Return valid, unused, channel for a passive scan to reset the RF */
-u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv,
- enum ieee80211_band band)
-{
- const struct iwl_channel_info *ch_info;
- int i;
- u8 channel = 0;
- u8 min, max;
- struct iwl_rxon_context *ctx;
-
- if (band == IEEE80211_BAND_5GHZ) {
- min = 14;
- max = priv->channel_count;
- } else {
- min = 0;
- max = 14;
- }
-
- for (i = min; i < max; i++) {
- bool busy = false;
-
- for_each_context(priv, ctx) {
- busy = priv->channel_info[i].channel ==
- le16_to_cpu(ctx->staging.channel);
- if (busy)
- break;
- }
-
- if (busy)
- continue;
-
- channel = priv->channel_info[i].channel;
- ch_info = iwl_legacy_get_channel_info(priv, band, channel);
- if (iwl_legacy_is_channel_valid(ch_info))
- break;
- }
-
- return channel;
-}
-EXPORT_SYMBOL(iwl_legacy_get_single_channel_number);
-
-/**
- * iwl_legacy_set_rxon_channel - Set the band and channel values in staging RXON
- * @ch: requested channel as a pointer to struct ieee80211_channel
-
- * NOTE: Does not commit to the hardware; it sets appropriate bit fields
- * in the staging RXON flag structure based on the ch->band
- */
-int
-iwl_legacy_set_rxon_channel(struct iwl_priv *priv, struct ieee80211_channel *ch,
- struct iwl_rxon_context *ctx)
-{
- enum ieee80211_band band = ch->band;
- u16 channel = ch->hw_value;
-
- if ((le16_to_cpu(ctx->staging.channel) == channel) &&
- (priv->band == band))
- return 0;
-
- ctx->staging.channel = cpu_to_le16(channel);
- if (band == IEEE80211_BAND_5GHZ)
- ctx->staging.flags &= ~RXON_FLG_BAND_24G_MSK;
- else
- ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
-
- priv->band = band;
-
- IWL_DEBUG_INFO(priv, "Staging channel set to %d [%d]\n", channel, band);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_set_rxon_channel);
-
-void iwl_legacy_set_flags_for_band(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- enum ieee80211_band band,
- struct ieee80211_vif *vif)
-{
- if (band == IEEE80211_BAND_5GHZ) {
- ctx->staging.flags &=
- ~(RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK
- | RXON_FLG_CCK_MSK);
- ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
- } else {
- /* Copied from iwl_post_associate() */
- if (vif && vif->bss_conf.use_short_slot)
- ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
-
- ctx->staging.flags |= RXON_FLG_BAND_24G_MSK;
- ctx->staging.flags |= RXON_FLG_AUTO_DETECT_MSK;
- ctx->staging.flags &= ~RXON_FLG_CCK_MSK;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_set_flags_for_band);
-
-/*
- * initialize rxon structure with default values from eeprom
- */
-void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- const struct iwl_channel_info *ch_info;
-
- memset(&ctx->staging, 0, sizeof(ctx->staging));
-
- if (!ctx->vif) {
- ctx->staging.dev_type = ctx->unused_devtype;
- } else
- switch (ctx->vif->type) {
-
- case NL80211_IFTYPE_STATION:
- ctx->staging.dev_type = ctx->station_devtype;
- ctx->staging.filter_flags = RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- case NL80211_IFTYPE_ADHOC:
- ctx->staging.dev_type = ctx->ibss_devtype;
- ctx->staging.flags = RXON_FLG_SHORT_PREAMBLE_MSK;
- ctx->staging.filter_flags = RXON_FILTER_BCON_AWARE_MSK |
- RXON_FILTER_ACCEPT_GRP_MSK;
- break;
-
- default:
- IWL_ERR(priv, "Unsupported interface type %d\n",
- ctx->vif->type);
- break;
- }
-
-#if 0
- /* TODO: Figure out when short_preamble would be set and cache from
- * that */
- if (!hw_to_local(priv->hw)->short_preamble)
- ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
-#endif
-
- ch_info = iwl_legacy_get_channel_info(priv, priv->band,
- le16_to_cpu(ctx->active.channel));
-
- if (!ch_info)
- ch_info = &priv->channel_info[0];
-
- ctx->staging.channel = cpu_to_le16(ch_info->channel);
- priv->band = ch_info->band;
-
- iwl_legacy_set_flags_for_band(priv, ctx, priv->band, ctx->vif);
-
- ctx->staging.ofdm_basic_rates =
- (IWL_OFDM_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- ctx->staging.cck_basic_rates =
- (IWL_CCK_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- /* clear both MIX and PURE40 mode flag */
- ctx->staging.flags &= ~(RXON_FLG_CHANNEL_MODE_MIXED |
- RXON_FLG_CHANNEL_MODE_PURE_40);
- if (ctx->vif)
- memcpy(ctx->staging.node_addr, ctx->vif->addr, ETH_ALEN);
-
- ctx->staging.ofdm_ht_single_stream_basic_rates = 0xff;
- ctx->staging.ofdm_ht_dual_stream_basic_rates = 0xff;
-}
-EXPORT_SYMBOL(iwl_legacy_connection_init_rx_config);
-
-void iwl_legacy_set_rate(struct iwl_priv *priv)
-{
- const struct ieee80211_supported_band *hw = NULL;
- struct ieee80211_rate *rate;
- struct iwl_rxon_context *ctx;
- int i;
-
- hw = iwl_get_hw_mode(priv, priv->band);
- if (!hw) {
- IWL_ERR(priv, "Failed to set rate: unable to get hw mode\n");
- return;
- }
-
- priv->active_rate = 0;
-
- for (i = 0; i < hw->n_bitrates; i++) {
- rate = &(hw->bitrates[i]);
- if (rate->hw_value < IWL_RATE_COUNT_LEGACY)
- priv->active_rate |= (1 << rate->hw_value);
- }
-
- IWL_DEBUG_RATE(priv, "Set active_rate = %0x\n", priv->active_rate);
-
- for_each_context(priv, ctx) {
- ctx->staging.cck_basic_rates =
- (IWL_CCK_BASIC_RATES_MASK >> IWL_FIRST_CCK_RATE) & 0xF;
-
- ctx->staging.ofdm_basic_rates =
- (IWL_OFDM_BASIC_RATES_MASK >> IWL_FIRST_OFDM_RATE) & 0xFF;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_set_rate);
-
-void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
- ieee80211_chswitch_done(ctx->vif, is_success);
-}
-EXPORT_SYMBOL(iwl_legacy_chswitch_done);
-
-void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_csa_notification *csa = &(pkt->u.csa_notif);
-
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct iwl_legacy_rxon_cmd *rxon = (void *)&ctx->active;
-
- if (!test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
- return;
-
- if (!le32_to_cpu(csa->status) && csa->channel == priv->switch_channel) {
- rxon->channel = csa->channel;
- ctx->staging.channel = csa->channel;
- IWL_DEBUG_11H(priv, "CSA notif: channel %d\n",
- le16_to_cpu(csa->channel));
- iwl_legacy_chswitch_done(priv, true);
- } else {
- IWL_ERR(priv, "CSA notif (fail) : channel %d\n",
- le16_to_cpu(csa->channel));
- iwl_legacy_chswitch_done(priv, false);
- }
-}
-EXPORT_SYMBOL(iwl_legacy_rx_csa);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- struct iwl_legacy_rxon_cmd *rxon = &ctx->staging;
-
- IWL_DEBUG_RADIO(priv, "RX CONFIG:\n");
- iwl_print_hex_dump(priv, IWL_DL_RADIO, (u8 *) rxon, sizeof(*rxon));
- IWL_DEBUG_RADIO(priv, "u16 channel: 0x%x\n",
- le16_to_cpu(rxon->channel));
- IWL_DEBUG_RADIO(priv, "u32 flags: 0x%08X\n", le32_to_cpu(rxon->flags));
- IWL_DEBUG_RADIO(priv, "u32 filter_flags: 0x%08x\n",
- le32_to_cpu(rxon->filter_flags));
- IWL_DEBUG_RADIO(priv, "u8 dev_type: 0x%x\n", rxon->dev_type);
- IWL_DEBUG_RADIO(priv, "u8 ofdm_basic_rates: 0x%02x\n",
- rxon->ofdm_basic_rates);
- IWL_DEBUG_RADIO(priv, "u8 cck_basic_rates: 0x%02x\n",
- rxon->cck_basic_rates);
- IWL_DEBUG_RADIO(priv, "u8[6] node_addr: %pM\n", rxon->node_addr);
- IWL_DEBUG_RADIO(priv, "u8[6] bssid_addr: %pM\n", rxon->bssid_addr);
- IWL_DEBUG_RADIO(priv, "u16 assoc_id: 0x%x\n",
- le16_to_cpu(rxon->assoc_id));
-}
-EXPORT_SYMBOL(iwl_legacy_print_rx_config_cmd);
-#endif
-/**
- * iwl_legacy_irq_handle_error - called for HW or SW error interrupt from card
- */
-void iwl_legacy_irq_handle_error(struct iwl_priv *priv)
-{
- /* Set the FW error flag -- cleared on iwl_down */
- set_bit(STATUS_FW_ERROR, &priv->status);
-
- /* Cancel currently queued command. */
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
-
- IWL_ERR(priv, "Loaded firmware version: %s\n",
- priv->hw->wiphy->fw_version);
-
- priv->cfg->ops->lib->dump_nic_error_log(priv);
- if (priv->cfg->ops->lib->dump_fh)
- priv->cfg->ops->lib->dump_fh(priv, NULL, false);
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & IWL_DL_FW_ERRORS)
- iwl_legacy_print_rx_config_cmd(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
-#endif
-
- wake_up(&priv->wait_command_queue);
-
- /* Keep the restart process from trying to send host
- * commands by clearing the INIT status bit */
- clear_bit(STATUS_READY, &priv->status);
-
- if (!test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_DEBUG(priv, IWL_DL_FW_ERRORS,
- "Restarting adapter due to uCode error.\n");
-
- if (priv->cfg->mod_params->restart_fw)
- queue_work(priv->workqueue, &priv->restart);
- }
-}
-EXPORT_SYMBOL(iwl_legacy_irq_handle_error);
-
-static int iwl_legacy_apm_stop_master(struct iwl_priv *priv)
-{
- int ret = 0;
-
- /* stop device's busmaster DMA activity */
- iwl_legacy_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_STOP_MASTER);
-
- ret = iwl_poll_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_MASTER_DISABLED,
- CSR_RESET_REG_FLAG_MASTER_DISABLED, 100);
- if (ret)
- IWL_WARN(priv, "Master Disable Timed Out, 100 usec\n");
-
- IWL_DEBUG_INFO(priv, "stop master\n");
-
- return ret;
-}
-
-void iwl_legacy_apm_stop(struct iwl_priv *priv)
-{
- IWL_DEBUG_INFO(priv, "Stop card, put in low power state\n");
-
- /* Stop device's DMA activity */
- iwl_legacy_apm_stop_master(priv);
-
- /* Reset the entire device */
- iwl_legacy_set_bit(priv, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET);
-
- udelay(10);
-
- /*
- * Clear "initialization complete" bit to move adapter from
- * D0A* (powered-up Active) --> D0U* (Uninitialized) state.
- */
- iwl_legacy_clear_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
-}
-EXPORT_SYMBOL(iwl_legacy_apm_stop);
-
-
-/*
- * Start up NIC's basic functionality after it has been reset
- * (e.g. after platform boot, or shutdown via iwl_legacy_apm_stop())
- * NOTE: This does not load uCode nor start the embedded processor
- */
-int iwl_legacy_apm_init(struct iwl_priv *priv)
-{
- int ret = 0;
- u16 lctl;
-
- IWL_DEBUG_INFO(priv, "Init card's basic functions\n");
-
- /*
- * Use "set_bit" below rather than "write", to preserve any hardware
- * bits already set by default after reset.
- */
-
- /* Disable L0S exit timer (platform NMI Work/Around) */
- iwl_legacy_set_bit(priv, CSR_GIO_CHICKEN_BITS,
- CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER);
-
- /*
- * Disable L0s without affecting L1;
- * don't wait for ICH L0s (ICH bug W/A)
- */
- iwl_legacy_set_bit(priv, CSR_GIO_CHICKEN_BITS,
- CSR_GIO_CHICKEN_BITS_REG_BIT_L1A_NO_L0S_RX);
-
- /* Set FH wait threshold to maximum (HW error during stress W/A) */
- iwl_legacy_set_bit(priv, CSR_DBG_HPET_MEM_REG,
- CSR_DBG_HPET_MEM_REG_VAL);
-
- /*
- * Enable HAP INTA (interrupt from management bus) to
- * wake device's PCI Express link L1a -> L0s
- * NOTE: This is no-op for 3945 (non-existent bit)
- */
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_HAP_WAKE_L1A);
-
- /*
- * HW bug W/A for instability in PCIe bus L0->L0S->L1 transition.
- * Check if BIOS (or OS) enabled L1-ASPM on this device.
- * If so (likely), disable L0S, so device moves directly L0->L1;
- * costs negligible amount of power savings.
- * If not (unlikely), enable L0S, so there is at least some
- * power savings, even without L1.
- */
- if (priv->cfg->base_params->set_l0s) {
- lctl = iwl_legacy_pcie_link_ctl(priv);
- if ((lctl & PCI_CFG_LINK_CTRL_VAL_L1_EN) ==
- PCI_CFG_LINK_CTRL_VAL_L1_EN) {
- /* L1-ASPM enabled; disable(!) L0S */
- iwl_legacy_set_bit(priv, CSR_GIO_REG,
- CSR_GIO_REG_VAL_L0S_ENABLED);
- IWL_DEBUG_POWER(priv, "L1 Enabled; Disabling L0S\n");
- } else {
- /* L1-ASPM disabled; enable(!) L0S */
- iwl_legacy_clear_bit(priv, CSR_GIO_REG,
- CSR_GIO_REG_VAL_L0S_ENABLED);
- IWL_DEBUG_POWER(priv, "L1 Disabled; Enabling L0S\n");
- }
- }
-
- /* Configure analog phase-lock-loop before activating to D0A */
- if (priv->cfg->base_params->pll_cfg_val)
- iwl_legacy_set_bit(priv, CSR_ANA_PLL_CFG,
- priv->cfg->base_params->pll_cfg_val);
-
- /*
- * Set "initialization complete" bit to move adapter from
- * D0U* --> D0A* (powered-up active) state.
- */
- iwl_legacy_set_bit(priv, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
-
- /*
- * Wait for clock stabilization; once stabilized, access to
- * device-internal resources is supported, e.g. iwl_legacy_write_prph()
- * and accesses to uCode SRAM.
- */
- ret = iwl_poll_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
- CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, 25000);
- if (ret < 0) {
- IWL_DEBUG_INFO(priv, "Failed to init the card\n");
- goto out;
- }
-
- /*
- * Enable DMA and BSM (if used) clocks, wait for them to stabilize.
- * BSM (Boostrap State Machine) is only in 3945 and 4965.
- *
- * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits
- * do not disable clocks. This preserves any hardware bits already
- * set by default in "CLK_CTRL_REG" after reset.
- */
- if (priv->cfg->base_params->use_bsm)
- iwl_legacy_write_prph(priv, APMG_CLK_EN_REG,
- APMG_CLK_VAL_DMA_CLK_RQT | APMG_CLK_VAL_BSM_CLK_RQT);
- else
- iwl_legacy_write_prph(priv, APMG_CLK_EN_REG,
- APMG_CLK_VAL_DMA_CLK_RQT);
- udelay(20);
-
- /* Disable L1-Active */
- iwl_legacy_set_bits_prph(priv, APMG_PCIDEV_STT_REG,
- APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
-
-out:
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_apm_init);
-
-
-int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force)
-{
- int ret;
- s8 prev_tx_power;
- bool defer;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- lockdep_assert_held(&priv->mutex);
-
- if (priv->tx_power_user_lmt == tx_power && !force)
- return 0;
-
- if (!priv->cfg->ops->lib->send_tx_power)
- return -EOPNOTSUPP;
-
- /* 0 dBm mean 1 milliwatt */
- if (tx_power < 0) {
- IWL_WARN(priv,
- "Requested user TXPOWER %d below 1 mW.\n",
- tx_power);
- return -EINVAL;
- }
-
- if (tx_power > priv->tx_power_device_lmt) {
- IWL_WARN(priv,
- "Requested user TXPOWER %d above upper limit %d.\n",
- tx_power, priv->tx_power_device_lmt);
- return -EINVAL;
- }
-
- if (!iwl_legacy_is_ready_rf(priv))
- return -EIO;
-
- /* scan complete and commit_rxon use tx_power_next value,
- * it always need to be updated for newest request */
- priv->tx_power_next = tx_power;
-
- /* do not set tx power when scanning or channel changing */
- defer = test_bit(STATUS_SCANNING, &priv->status) ||
- memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging));
- if (defer && !force) {
- IWL_DEBUG_INFO(priv, "Deferring tx power set\n");
- return 0;
- }
-
- prev_tx_power = priv->tx_power_user_lmt;
- priv->tx_power_user_lmt = tx_power;
-
- ret = priv->cfg->ops->lib->send_tx_power(priv);
-
- /* if fail to set tx_power, restore the orig. tx power */
- if (ret) {
- priv->tx_power_user_lmt = prev_tx_power;
- priv->tx_power_next = prev_tx_power;
- }
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_set_tx_power);
-
-void iwl_legacy_send_bt_config(struct iwl_priv *priv)
-{
- struct iwl_bt_cmd bt_cmd = {
- .lead_time = BT_LEAD_TIME_DEF,
- .max_kill = BT_MAX_KILL_DEF,
- .kill_ack_mask = 0,
- .kill_cts_mask = 0,
- };
-
- if (!bt_coex_active)
- bt_cmd.flags = BT_COEX_DISABLE;
- else
- bt_cmd.flags = BT_COEX_ENABLE;
-
- IWL_DEBUG_INFO(priv, "BT coex %s\n",
- (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active");
-
- if (iwl_legacy_send_cmd_pdu(priv, REPLY_BT_CONFIG,
- sizeof(struct iwl_bt_cmd), &bt_cmd))
- IWL_ERR(priv, "failed to send BT Coex Config\n");
-}
-EXPORT_SYMBOL(iwl_legacy_send_bt_config);
-
-int iwl_legacy_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear)
-{
- struct iwl_statistics_cmd statistics_cmd = {
- .configuration_flags =
- clear ? IWL_STATS_CONF_CLEAR_STATS : 0,
- };
-
- if (flags & CMD_ASYNC)
- return iwl_legacy_send_cmd_pdu_async(priv, REPLY_STATISTICS_CMD,
- sizeof(struct iwl_statistics_cmd),
- &statistics_cmd, NULL);
- else
- return iwl_legacy_send_cmd_pdu(priv, REPLY_STATISTICS_CMD,
- sizeof(struct iwl_statistics_cmd),
- &statistics_cmd);
-}
-EXPORT_SYMBOL(iwl_legacy_send_statistics_request);
-
-void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_sleep_notification *sleep = &(pkt->u.sleep_notif);
- IWL_DEBUG_RX(priv, "sleep mode: %d, src: %d\n",
- sleep->pm_sleep_mode, sleep->pm_wakeup_src);
-#endif
-}
-EXPORT_SYMBOL(iwl_legacy_rx_pm_sleep_notif);
-
-void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled "
- "notification for %s:\n", len,
- iwl_legacy_get_cmd_string(pkt->hdr.cmd));
- iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->u.raw, len);
-}
-EXPORT_SYMBOL(iwl_legacy_rx_pm_debug_statistics_notif);
-
-void iwl_legacy_rx_reply_error(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-
- IWL_ERR(priv, "Error Reply type 0x%08X cmd %s (0x%02X) "
- "seq 0x%04X ser 0x%08X\n",
- le32_to_cpu(pkt->u.err_resp.error_type),
- iwl_legacy_get_cmd_string(pkt->u.err_resp.cmd_id),
- pkt->u.err_resp.cmd_id,
- le16_to_cpu(pkt->u.err_resp.bad_cmd_seq_num),
- le32_to_cpu(pkt->u.err_resp.error_info));
-}
-EXPORT_SYMBOL(iwl_legacy_rx_reply_error);
-
-void iwl_legacy_clear_isr_stats(struct iwl_priv *priv)
-{
- memset(&priv->isr_stats, 0, sizeof(priv->isr_stats));
-}
-
-int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, u16 queue,
- const struct ieee80211_tx_queue_params *params)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_rxon_context *ctx;
- unsigned long flags;
- int q;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (!iwl_legacy_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
- return -EIO;
- }
-
- if (queue >= AC_NUM) {
- IWL_DEBUG_MAC80211(priv, "leave - queue >= AC_NUM %d\n", queue);
- return 0;
- }
-
- q = AC_NUM - 1 - queue;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for_each_context(priv, ctx) {
- ctx->qos_data.def_qos_parm.ac[q].cw_min =
- cpu_to_le16(params->cw_min);
- ctx->qos_data.def_qos_parm.ac[q].cw_max =
- cpu_to_le16(params->cw_max);
- ctx->qos_data.def_qos_parm.ac[q].aifsn = params->aifs;
- ctx->qos_data.def_qos_parm.ac[q].edca_txop =
- cpu_to_le16((params->txop * 32));
-
- ctx->qos_data.def_qos_parm.ac[q].reserved1 = 0;
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_mac_conf_tx);
-
-int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- return priv->ibss_manager == IWL_IBSS_MANAGER;
-}
-EXPORT_SYMBOL_GPL(iwl_legacy_mac_tx_last_beacon);
-
-static int
-iwl_legacy_set_mode(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- iwl_legacy_connection_init_rx_config(priv, ctx);
-
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
-
- return iwl_legacy_commit_rxon(priv, ctx);
-}
-
-static int iwl_legacy_setup_interface(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- struct ieee80211_vif *vif = ctx->vif;
- int err;
-
- lockdep_assert_held(&priv->mutex);
-
- /*
- * This variable will be correct only when there's just
- * a single context, but all code using it is for hardware
- * that supports only one context.
- */
- priv->iw_mode = vif->type;
-
- ctx->is_active = true;
-
- err = iwl_legacy_set_mode(priv, ctx);
- if (err) {
- if (!ctx->always_active)
- ctx->is_active = false;
- return err;
- }
-
- return 0;
-}
-
-int
-iwl_legacy_mac_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
- struct iwl_rxon_context *tmp, *ctx = NULL;
- int err;
-
- IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n",
- vif->type, vif->addr);
-
- mutex_lock(&priv->mutex);
-
- if (!iwl_legacy_is_ready_rf(priv)) {
- IWL_WARN(priv, "Try to add interface when device not ready\n");
- err = -EINVAL;
- goto out;
- }
-
- for_each_context(priv, tmp) {
- u32 possible_modes =
- tmp->interface_modes | tmp->exclusive_interface_modes;
-
- if (tmp->vif) {
- /* check if this busy context is exclusive */
- if (tmp->exclusive_interface_modes &
- BIT(tmp->vif->type)) {
- err = -EINVAL;
- goto out;
- }
- continue;
- }
-
- if (!(possible_modes & BIT(vif->type)))
- continue;
-
- /* have maybe usable context w/o interface */
- ctx = tmp;
- break;
- }
-
- if (!ctx) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- vif_priv->ctx = ctx;
- ctx->vif = vif;
-
- err = iwl_legacy_setup_interface(priv, ctx);
- if (!err)
- goto out;
-
- ctx->vif = NULL;
- priv->iw_mode = NL80211_IFTYPE_STATION;
- out:
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
- return err;
-}
-EXPORT_SYMBOL(iwl_legacy_mac_add_interface);
-
-static void iwl_legacy_teardown_interface(struct iwl_priv *priv,
- struct ieee80211_vif *vif,
- bool mode_change)
-{
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
-
- lockdep_assert_held(&priv->mutex);
-
- if (priv->scan_vif == vif) {
- iwl_legacy_scan_cancel_timeout(priv, 200);
- iwl_legacy_force_scan_end(priv);
- }
-
- if (!mode_change) {
- iwl_legacy_set_mode(priv, ctx);
- if (!ctx->always_active)
- ctx->is_active = false;
- }
-}
-
-void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- mutex_lock(&priv->mutex);
-
- WARN_ON(ctx->vif != vif);
- ctx->vif = NULL;
-
- iwl_legacy_teardown_interface(priv, vif, false);
-
- memset(priv->bssid, 0, ETH_ALEN);
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-
-}
-EXPORT_SYMBOL(iwl_legacy_mac_remove_interface);
-
-int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv)
-{
- if (!priv->txq)
- priv->txq = kzalloc(
- sizeof(struct iwl_tx_queue) *
- priv->cfg->base_params->num_of_queues,
- GFP_KERNEL);
- if (!priv->txq) {
- IWL_ERR(priv, "Not enough memory for txq\n");
- return -ENOMEM;
- }
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_alloc_txq_mem);
-
-void iwl_legacy_txq_mem(struct iwl_priv *priv)
-{
- kfree(priv->txq);
- priv->txq = NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_txq_mem);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-
-#define IWL_TRAFFIC_DUMP_SIZE (IWL_TRAFFIC_ENTRY_SIZE * IWL_TRAFFIC_ENTRIES)
-
-void iwl_legacy_reset_traffic_log(struct iwl_priv *priv)
-{
- priv->tx_traffic_idx = 0;
- priv->rx_traffic_idx = 0;
- if (priv->tx_traffic)
- memset(priv->tx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
- if (priv->rx_traffic)
- memset(priv->rx_traffic, 0, IWL_TRAFFIC_DUMP_SIZE);
-}
-
-int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv)
-{
- u32 traffic_size = IWL_TRAFFIC_DUMP_SIZE;
-
- if (iwlegacy_debug_level & IWL_DL_TX) {
- if (!priv->tx_traffic) {
- priv->tx_traffic =
- kzalloc(traffic_size, GFP_KERNEL);
- if (!priv->tx_traffic)
- return -ENOMEM;
- }
- }
- if (iwlegacy_debug_level & IWL_DL_RX) {
- if (!priv->rx_traffic) {
- priv->rx_traffic =
- kzalloc(traffic_size, GFP_KERNEL);
- if (!priv->rx_traffic)
- return -ENOMEM;
- }
- }
- iwl_legacy_reset_traffic_log(priv);
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_alloc_traffic_mem);
-
-void iwl_legacy_free_traffic_mem(struct iwl_priv *priv)
-{
- kfree(priv->tx_traffic);
- priv->tx_traffic = NULL;
-
- kfree(priv->rx_traffic);
- priv->rx_traffic = NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_free_traffic_mem);
-
-void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header)
-{
- __le16 fc;
- u16 len;
-
- if (likely(!(iwlegacy_debug_level & IWL_DL_TX)))
- return;
-
- if (!priv->tx_traffic)
- return;
-
- fc = header->frame_control;
- if (ieee80211_is_data(fc)) {
- len = (length > IWL_TRAFFIC_ENTRY_SIZE)
- ? IWL_TRAFFIC_ENTRY_SIZE : length;
- memcpy((priv->tx_traffic +
- (priv->tx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
- header, len);
- priv->tx_traffic_idx =
- (priv->tx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_dbg_log_tx_data_frame);
-
-void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header)
-{
- __le16 fc;
- u16 len;
-
- if (likely(!(iwlegacy_debug_level & IWL_DL_RX)))
- return;
-
- if (!priv->rx_traffic)
- return;
-
- fc = header->frame_control;
- if (ieee80211_is_data(fc)) {
- len = (length > IWL_TRAFFIC_ENTRY_SIZE)
- ? IWL_TRAFFIC_ENTRY_SIZE : length;
- memcpy((priv->rx_traffic +
- (priv->rx_traffic_idx * IWL_TRAFFIC_ENTRY_SIZE)),
- header, len);
- priv->rx_traffic_idx =
- (priv->rx_traffic_idx + 1) % IWL_TRAFFIC_ENTRIES;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_dbg_log_rx_data_frame);
-
-const char *iwl_legacy_get_mgmt_string(int cmd)
-{
- switch (cmd) {
- IWL_CMD(MANAGEMENT_ASSOC_REQ);
- IWL_CMD(MANAGEMENT_ASSOC_RESP);
- IWL_CMD(MANAGEMENT_REASSOC_REQ);
- IWL_CMD(MANAGEMENT_REASSOC_RESP);
- IWL_CMD(MANAGEMENT_PROBE_REQ);
- IWL_CMD(MANAGEMENT_PROBE_RESP);
- IWL_CMD(MANAGEMENT_BEACON);
- IWL_CMD(MANAGEMENT_ATIM);
- IWL_CMD(MANAGEMENT_DISASSOC);
- IWL_CMD(MANAGEMENT_AUTH);
- IWL_CMD(MANAGEMENT_DEAUTH);
- IWL_CMD(MANAGEMENT_ACTION);
- default:
- return "UNKNOWN";
-
- }
-}
-
-const char *iwl_legacy_get_ctrl_string(int cmd)
-{
- switch (cmd) {
- IWL_CMD(CONTROL_BACK_REQ);
- IWL_CMD(CONTROL_BACK);
- IWL_CMD(CONTROL_PSPOLL);
- IWL_CMD(CONTROL_RTS);
- IWL_CMD(CONTROL_CTS);
- IWL_CMD(CONTROL_ACK);
- IWL_CMD(CONTROL_CFEND);
- IWL_CMD(CONTROL_CFENDACK);
- default:
- return "UNKNOWN";
-
- }
-}
-
-void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv)
-{
- memset(&priv->tx_stats, 0, sizeof(struct traffic_stats));
- memset(&priv->rx_stats, 0, sizeof(struct traffic_stats));
-}
-
-/*
- * if CONFIG_IWLWIFI_LEGACY_DEBUGFS defined,
- * iwl_legacy_update_stats function will
- * record all the MGMT, CTRL and DATA pkt for both TX and Rx pass
- * Use debugFs to display the rx/rx_statistics
- * if CONFIG_IWLWIFI_LEGACY_DEBUGFS not being defined, then no MGMT and CTRL
- * information will be recorded, but DATA pkt still will be recorded
- * for the reason of iwl_led.c need to control the led blinking based on
- * number of tx and rx data.
- *
- */
-void
-iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc, u16 len)
-{
- struct traffic_stats *stats;
-
- if (is_tx)
- stats = &priv->tx_stats;
- else
- stats = &priv->rx_stats;
-
- if (ieee80211_is_mgmt(fc)) {
- switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
- case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
- stats->mgmt[MANAGEMENT_ASSOC_REQ]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP):
- stats->mgmt[MANAGEMENT_ASSOC_RESP]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
- stats->mgmt[MANAGEMENT_REASSOC_REQ]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
- stats->mgmt[MANAGEMENT_REASSOC_RESP]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
- stats->mgmt[MANAGEMENT_PROBE_REQ]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
- stats->mgmt[MANAGEMENT_PROBE_RESP]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_BEACON):
- stats->mgmt[MANAGEMENT_BEACON]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_ATIM):
- stats->mgmt[MANAGEMENT_ATIM]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
- stats->mgmt[MANAGEMENT_DISASSOC]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_AUTH):
- stats->mgmt[MANAGEMENT_AUTH]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
- stats->mgmt[MANAGEMENT_DEAUTH]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_ACTION):
- stats->mgmt[MANAGEMENT_ACTION]++;
- break;
- }
- } else if (ieee80211_is_ctl(fc)) {
- switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
- case cpu_to_le16(IEEE80211_STYPE_BACK_REQ):
- stats->ctrl[CONTROL_BACK_REQ]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_BACK):
- stats->ctrl[CONTROL_BACK]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_PSPOLL):
- stats->ctrl[CONTROL_PSPOLL]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_RTS):
- stats->ctrl[CONTROL_RTS]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_CTS):
- stats->ctrl[CONTROL_CTS]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_ACK):
- stats->ctrl[CONTROL_ACK]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_CFEND):
- stats->ctrl[CONTROL_CFEND]++;
- break;
- case cpu_to_le16(IEEE80211_STYPE_CFENDACK):
- stats->ctrl[CONTROL_CFENDACK]++;
- break;
- }
- } else {
- /* data */
- stats->data_cnt++;
- stats->data_bytes += len;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_update_stats);
-#endif
-
-int iwl_legacy_force_reset(struct iwl_priv *priv, bool external)
-{
- struct iwl_force_reset *force_reset;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EINVAL;
-
- force_reset = &priv->force_reset;
- force_reset->reset_request_count++;
- if (!external) {
- if (force_reset->last_force_reset_jiffies &&
- time_after(force_reset->last_force_reset_jiffies +
- force_reset->reset_duration, jiffies)) {
- IWL_DEBUG_INFO(priv, "force reset rejected\n");
- force_reset->reset_reject_count++;
- return -EAGAIN;
- }
- }
- force_reset->reset_success_count++;
- force_reset->last_force_reset_jiffies = jiffies;
-
- /*
- * if the request is from external(ex: debugfs),
- * then always perform the request in regardless the module
- * parameter setting
- * if the request is from internal (uCode error or driver
- * detect failure), then fw_restart module parameter
- * need to be check before performing firmware reload
- */
-
- if (!external && !priv->cfg->mod_params->restart_fw) {
- IWL_DEBUG_INFO(priv, "Cancel firmware reload based on "
- "module parameter setting\n");
- return 0;
- }
-
- IWL_ERR(priv, "On demand firmware reload\n");
-
- /* Set the FW error flag -- cleared on iwl_down */
- set_bit(STATUS_FW_ERROR, &priv->status);
- wake_up(&priv->wait_command_queue);
- /*
- * Keep the restart process from trying to send host
- * commands by clearing the INIT status bit
- */
- clear_bit(STATUS_READY, &priv->status);
- queue_work(priv->workqueue, &priv->restart);
-
- return 0;
-}
-
-int
-iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum nl80211_iftype newtype, bool newp2p)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
- struct iwl_rxon_context *tmp;
- u32 interface_modes;
- int err;
-
- newtype = ieee80211_iftype_p2p(newtype, newp2p);
-
- mutex_lock(&priv->mutex);
-
- if (!ctx->vif || !iwl_legacy_is_ready_rf(priv)) {
- /*
- * Huh? But wait ... this can maybe happen when
- * we're in the middle of a firmware restart!
- */
- err = -EBUSY;
- goto out;
- }
-
- interface_modes = ctx->interface_modes | ctx->exclusive_interface_modes;
-
- if (!(interface_modes & BIT(newtype))) {
- err = -EBUSY;
- goto out;
- }
-
- if (ctx->exclusive_interface_modes & BIT(newtype)) {
- for_each_context(priv, tmp) {
- if (ctx == tmp)
- continue;
-
- if (!tmp->vif)
- continue;
-
- /*
- * The current mode switch would be exclusive, but
- * another context is active ... refuse the switch.
- */
- err = -EBUSY;
- goto out;
- }
- }
-
- /* success */
- iwl_legacy_teardown_interface(priv, vif, true);
- vif->type = newtype;
- vif->p2p = newp2p;
- err = iwl_legacy_setup_interface(priv, ctx);
- WARN_ON(err);
- /*
- * We've switched internally, but submitting to the
- * device may have failed for some reason. Mask this
- * error, because otherwise mac80211 will not switch
- * (and set the interface type back) and we'll be
- * out of sync with it.
- */
- err = 0;
-
- out:
- mutex_unlock(&priv->mutex);
- return err;
-}
-EXPORT_SYMBOL(iwl_legacy_mac_change_interface);
-
-/*
- * On every watchdog tick we check (latest) time stamp. If it does not
- * change during timeout period and queue is not empty we reset firmware.
- */
-static int iwl_legacy_check_stuck_queue(struct iwl_priv *priv, int cnt)
-{
- struct iwl_tx_queue *txq = &priv->txq[cnt];
- struct iwl_queue *q = &txq->q;
- unsigned long timeout;
- int ret;
-
- if (q->read_ptr == q->write_ptr) {
- txq->time_stamp = jiffies;
- return 0;
- }
-
- timeout = txq->time_stamp +
- msecs_to_jiffies(priv->cfg->base_params->wd_timeout);
-
- if (time_after(jiffies, timeout)) {
- IWL_ERR(priv, "Queue %d stuck for %u ms.\n",
- q->id, priv->cfg->base_params->wd_timeout);
- ret = iwl_legacy_force_reset(priv, false);
- return (ret == -EAGAIN) ? 0 : 1;
- }
-
- return 0;
-}
-
-/*
- * Making watchdog tick be a quarter of timeout assure we will
- * discover the queue hung between timeout and 1.25*timeout
- */
-#define IWL_WD_TICK(timeout) ((timeout) / 4)
-
-/*
- * Watchdog timer callback, we check each tx queue for stuck, if if hung
- * we reset the firmware. If everything is fine just rearm the timer.
- */
-void iwl_legacy_bg_watchdog(unsigned long data)
-{
- struct iwl_priv *priv = (struct iwl_priv *)data;
- int cnt;
- unsigned long timeout;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- timeout = priv->cfg->base_params->wd_timeout;
- if (timeout == 0)
- return;
-
- /* monitor and check for stuck cmd queue */
- if (iwl_legacy_check_stuck_queue(priv, priv->cmd_queue))
- return;
-
- /* monitor and check for other stuck queues */
- if (iwl_legacy_is_any_associated(priv)) {
- for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
- /* skip as we already checked the command queue */
- if (cnt == priv->cmd_queue)
- continue;
- if (iwl_legacy_check_stuck_queue(priv, cnt))
- return;
- }
- }
-
- mod_timer(&priv->watchdog, jiffies +
- msecs_to_jiffies(IWL_WD_TICK(timeout)));
-}
-EXPORT_SYMBOL(iwl_legacy_bg_watchdog);
-
-void iwl_legacy_setup_watchdog(struct iwl_priv *priv)
-{
- unsigned int timeout = priv->cfg->base_params->wd_timeout;
-
- if (timeout)
- mod_timer(&priv->watchdog,
- jiffies + msecs_to_jiffies(IWL_WD_TICK(timeout)));
- else
- del_timer(&priv->watchdog);
-}
-EXPORT_SYMBOL(iwl_legacy_setup_watchdog);
-
-/*
- * extended beacon time format
- * time in usec will be changed into a 32-bit value in extended:internal format
- * the extended part is the beacon counts
- * the internal part is the time in usec within one beacon interval
- */
-u32
-iwl_legacy_usecs_to_beacons(struct iwl_priv *priv,
- u32 usec, u32 beacon_interval)
-{
- u32 quot;
- u32 rem;
- u32 interval = beacon_interval * TIME_UNIT;
-
- if (!interval || !usec)
- return 0;
-
- quot = (usec / interval) &
- (iwl_legacy_beacon_time_mask_high(priv,
- priv->hw_params.beacon_time_tsf_bits) >>
- priv->hw_params.beacon_time_tsf_bits);
- rem = (usec % interval) & iwl_legacy_beacon_time_mask_low(priv,
- priv->hw_params.beacon_time_tsf_bits);
-
- return (quot << priv->hw_params.beacon_time_tsf_bits) + rem;
-}
-EXPORT_SYMBOL(iwl_legacy_usecs_to_beacons);
-
-/* base is usually what we get from ucode with each received frame,
- * the same as HW timer counter counting down
- */
-__le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base,
- u32 addon, u32 beacon_interval)
-{
- u32 base_low = base & iwl_legacy_beacon_time_mask_low(priv,
- priv->hw_params.beacon_time_tsf_bits);
- u32 addon_low = addon & iwl_legacy_beacon_time_mask_low(priv,
- priv->hw_params.beacon_time_tsf_bits);
- u32 interval = beacon_interval * TIME_UNIT;
- u32 res = (base & iwl_legacy_beacon_time_mask_high(priv,
- priv->hw_params.beacon_time_tsf_bits)) +
- (addon & iwl_legacy_beacon_time_mask_high(priv,
- priv->hw_params.beacon_time_tsf_bits));
-
- if (base_low > addon_low)
- res += base_low - addon_low;
- else if (base_low < addon_low) {
- res += interval + base_low - addon_low;
- res += (1 << priv->hw_params.beacon_time_tsf_bits);
- } else
- res += (1 << priv->hw_params.beacon_time_tsf_bits);
-
- return cpu_to_le32(res);
-}
-EXPORT_SYMBOL(iwl_legacy_add_beacon_time);
-
-#ifdef CONFIG_PM
-
-int iwl_legacy_pci_suspend(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct iwl_priv *priv = pci_get_drvdata(pdev);
-
- /*
- * This function is called when system goes into suspend state
- * mac80211 will call iwl_mac_stop() from the mac80211 suspend function
- * first but since iwl_mac_stop() has no knowledge of who the caller is,
- * it will not call apm_ops.stop() to stop the DMA operation.
- * Calling apm_ops.stop here to make sure we stop the DMA.
- */
- iwl_legacy_apm_stop(priv);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_pci_suspend);
-
-int iwl_legacy_pci_resume(struct device *device)
-{
- struct pci_dev *pdev = to_pci_dev(device);
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- bool hw_rfkill = false;
-
- /*
- * We disable the RETRY_TIMEOUT register (0x41) to keep
- * PCI Tx retries from interfering with C3 CPU state.
- */
- pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
-
- iwl_legacy_enable_interrupts(priv);
-
- if (!(iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rfkill = true;
-
- if (hw_rfkill)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
- wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rfkill);
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_pci_resume);
-
-const struct dev_pm_ops iwl_legacy_pm_ops = {
- .suspend = iwl_legacy_pci_suspend,
- .resume = iwl_legacy_pci_resume,
- .freeze = iwl_legacy_pci_suspend,
- .thaw = iwl_legacy_pci_resume,
- .poweroff = iwl_legacy_pci_suspend,
- .restore = iwl_legacy_pci_resume,
-};
-EXPORT_SYMBOL(iwl_legacy_pm_ops);
-
-#endif /* CONFIG_PM */
-
-static void
-iwl_legacy_update_qos(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
-{
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (!ctx->is_active)
- return;
-
- ctx->qos_data.def_qos_parm.qos_flags = 0;
-
- if (ctx->qos_data.qos_active)
- ctx->qos_data.def_qos_parm.qos_flags |=
- QOS_PARAM_FLG_UPDATE_EDCA_MSK;
-
- if (ctx->ht.enabled)
- ctx->qos_data.def_qos_parm.qos_flags |= QOS_PARAM_FLG_TGN_MSK;
-
- IWL_DEBUG_QOS(priv, "send QoS cmd with Qos active=%d FLAGS=0x%X\n",
- ctx->qos_data.qos_active,
- ctx->qos_data.def_qos_parm.qos_flags);
-
- iwl_legacy_send_cmd_pdu_async(priv, ctx->qos_cmd,
- sizeof(struct iwl_qosparam_cmd),
- &ctx->qos_data.def_qos_parm, NULL);
-}
-
-/**
- * iwl_legacy_mac_config - mac80211 config callback
- */
-int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed)
-{
- struct iwl_priv *priv = hw->priv;
- const struct iwl_channel_info *ch_info;
- struct ieee80211_conf *conf = &hw->conf;
- struct ieee80211_channel *channel = conf->channel;
- struct iwl_ht_config *ht_conf = &priv->current_ht_config;
- struct iwl_rxon_context *ctx;
- unsigned long flags = 0;
- int ret = 0;
- u16 ch;
- int scan_active = 0;
- bool ht_changed[NUM_IWL_RXON_CTX] = {};
-
- if (WARN_ON(!priv->cfg->ops->legacy))
- return -EOPNOTSUPP;
-
- mutex_lock(&priv->mutex);
-
- IWL_DEBUG_MAC80211(priv, "enter to channel %d changed 0x%X\n",
- channel->hw_value, changed);
-
- if (unlikely(test_bit(STATUS_SCANNING, &priv->status))) {
- scan_active = 1;
- IWL_DEBUG_MAC80211(priv, "scan active\n");
- }
-
- if (changed & (IEEE80211_CONF_CHANGE_SMPS |
- IEEE80211_CONF_CHANGE_CHANNEL)) {
- /* mac80211 uses static for non-HT which is what we want */
- priv->current_ht_config.smps = conf->smps_mode;
-
- /*
- * Recalculate chain counts.
- *
- * If monitor mode is enabled then mac80211 will
- * set up the SM PS mode to OFF if an HT channel is
- * configured.
- */
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- for_each_context(priv, ctx)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- }
-
- /* during scanning mac80211 will delay channel setting until
- * scan finish with changed = 0
- */
- if (!changed || (changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
- if (scan_active)
- goto set_ch_out;
-
- ch = channel->hw_value;
- ch_info = iwl_legacy_get_channel_info(priv, channel->band, ch);
- if (!iwl_legacy_is_channel_valid(ch_info)) {
- IWL_DEBUG_MAC80211(priv, "leave - invalid channel\n");
- ret = -EINVAL;
- goto set_ch_out;
- }
-
- if (priv->iw_mode == NL80211_IFTYPE_ADHOC &&
- !iwl_legacy_is_channel_ibss(ch_info)) {
- IWL_DEBUG_MAC80211(priv, "leave - not IBSS channel\n");
- ret = -EINVAL;
- goto set_ch_out;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- for_each_context(priv, ctx) {
- /* Configure HT40 channels */
- if (ctx->ht.enabled != conf_is_ht(conf)) {
- ctx->ht.enabled = conf_is_ht(conf);
- ht_changed[ctx->ctxid] = true;
- }
- if (ctx->ht.enabled) {
- if (conf_is_ht40_minus(conf)) {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_BELOW;
- ctx->ht.is_40mhz = true;
- } else if (conf_is_ht40_plus(conf)) {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
- ctx->ht.is_40mhz = true;
- } else {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_NONE;
- ctx->ht.is_40mhz = false;
- }
- } else
- ctx->ht.is_40mhz = false;
-
- /*
- * Default to no protection. Protection mode will
- * later be set from BSS config in iwl_ht_conf
- */
- ctx->ht.protection =
- IEEE80211_HT_OP_MODE_PROTECTION_NONE;
-
- /* if we are switching from ht to 2.4 clear flags
- * from any ht related info since 2.4 does not
- * support ht */
- if ((le16_to_cpu(ctx->staging.channel) != ch))
- ctx->staging.flags = 0;
-
- iwl_legacy_set_rxon_channel(priv, channel, ctx);
- iwl_legacy_set_rxon_ht(priv, ht_conf);
-
- iwl_legacy_set_flags_for_band(priv, ctx, channel->band,
- ctx->vif);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (priv->cfg->ops->legacy->update_bcast_stations)
- ret =
- priv->cfg->ops->legacy->update_bcast_stations(priv);
-
- set_ch_out:
- /* The list of supported rates and rate mask can be different
- * for each band; since the band may have changed, reset
- * the rate mask to what mac80211 lists */
- iwl_legacy_set_rate(priv);
- }
-
- if (changed & (IEEE80211_CONF_CHANGE_PS |
- IEEE80211_CONF_CHANGE_IDLE)) {
- ret = iwl_legacy_power_update_mode(priv, false);
- if (ret)
- IWL_DEBUG_MAC80211(priv, "Error setting sleep level\n");
- }
-
- if (changed & IEEE80211_CONF_CHANGE_POWER) {
- IWL_DEBUG_MAC80211(priv, "TX Power old=%d new=%d\n",
- priv->tx_power_user_lmt, conf->power_level);
-
- iwl_legacy_set_tx_power(priv, conf->power_level, false);
- }
-
- if (!iwl_legacy_is_ready(priv)) {
- IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
- goto out;
- }
-
- if (scan_active)
- goto out;
-
- for_each_context(priv, ctx) {
- if (memcmp(&ctx->active, &ctx->staging, sizeof(ctx->staging)))
- iwl_legacy_commit_rxon(priv, ctx);
- else
- IWL_DEBUG_INFO(priv,
- "Not re-sending same RXON configuration.\n");
- if (ht_changed[ctx->ctxid])
- iwl_legacy_update_qos(priv, ctx);
- }
-
-out:
- IWL_DEBUG_MAC80211(priv, "leave\n");
- mutex_unlock(&priv->mutex);
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_mac_config);
-
-void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
- /* IBSS can only be the IWL_RXON_CTX_BSS context */
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (WARN_ON(!priv->cfg->ops->legacy))
- return;
-
- mutex_lock(&priv->mutex);
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- spin_lock_irqsave(&priv->lock, flags);
- memset(&priv->current_ht_config, 0, sizeof(struct iwl_ht_config));
- spin_unlock_irqrestore(&priv->lock, flags);
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* new association get rid of ibss beacon skb */
- if (priv->beacon_skb)
- dev_kfree_skb(priv->beacon_skb);
-
- priv->beacon_skb = NULL;
-
- priv->timestamp = 0;
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl_legacy_scan_cancel_timeout(priv, 100);
- if (!iwl_legacy_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211(priv, "leave - not ready\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- /* we are restarting association process
- * clear RXON_FILTER_ASSOC_MSK bit
- */
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl_legacy_commit_rxon(priv, ctx);
-
- iwl_legacy_set_rate(priv);
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-EXPORT_SYMBOL(iwl_legacy_mac_reset_tsf);
-
-static void iwl_legacy_ht_conf(struct iwl_priv *priv,
- struct ieee80211_vif *vif)
-{
- struct iwl_ht_config *ht_conf = &priv->current_ht_config;
- struct ieee80211_sta *sta;
- struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
-
- IWL_DEBUG_ASSOC(priv, "enter:\n");
-
- if (!ctx->ht.enabled)
- return;
-
- ctx->ht.protection =
- bss_conf->ht_operation_mode & IEEE80211_HT_OP_MODE_PROTECTION;
- ctx->ht.non_gf_sta_present =
- !!(bss_conf->ht_operation_mode &
- IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
-
- ht_conf->single_chain_sufficient = false;
-
- switch (vif->type) {
- case NL80211_IFTYPE_STATION:
- rcu_read_lock();
- sta = ieee80211_find_sta(vif, bss_conf->bssid);
- if (sta) {
- struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
- int maxstreams;
-
- maxstreams = (ht_cap->mcs.tx_params &
- IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
- >> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
- maxstreams += 1;
-
- if ((ht_cap->mcs.rx_mask[1] == 0) &&
- (ht_cap->mcs.rx_mask[2] == 0))
- ht_conf->single_chain_sufficient = true;
- if (maxstreams <= 1)
- ht_conf->single_chain_sufficient = true;
- } else {
- /*
- * If at all, this can only happen through a race
- * when the AP disconnects us while we're still
- * setting up the connection, in that case mac80211
- * will soon tell us about that.
- */
- ht_conf->single_chain_sufficient = true;
- }
- rcu_read_unlock();
- break;
- case NL80211_IFTYPE_ADHOC:
- ht_conf->single_chain_sufficient = true;
- break;
- default:
- break;
- }
-
- IWL_DEBUG_ASSOC(priv, "leave\n");
-}
-
-static inline void iwl_legacy_set_no_assoc(struct iwl_priv *priv,
- struct ieee80211_vif *vif)
-{
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
-
- /*
- * inform the ucode that there is no longer an
- * association and that no more packets should be
- * sent
- */
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- ctx->staging.assoc_id = 0;
- iwl_legacy_commit_rxon(priv, ctx);
-}
-
-static void iwl_legacy_beacon_update(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif)
-{
- struct iwl_priv *priv = hw->priv;
- unsigned long flags;
- __le64 timestamp;
- struct sk_buff *skb = ieee80211_beacon_get(hw, vif);
-
- if (!skb)
- return;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- lockdep_assert_held(&priv->mutex);
-
- if (!priv->beacon_ctx) {
- IWL_ERR(priv, "update beacon but no beacon context!\n");
- dev_kfree_skb(skb);
- return;
- }
-
- spin_lock_irqsave(&priv->lock, flags);
-
- if (priv->beacon_skb)
- dev_kfree_skb(priv->beacon_skb);
-
- priv->beacon_skb = skb;
-
- timestamp = ((struct ieee80211_mgmt *)skb->data)->u.beacon.timestamp;
- priv->timestamp = le64_to_cpu(timestamp);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if (!iwl_legacy_is_ready_rf(priv)) {
- IWL_DEBUG_MAC80211(priv, "leave - RF not ready\n");
- return;
- }
-
- priv->cfg->ops->legacy->post_associate(priv);
-}
-
-void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *bss_conf,
- u32 changes)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_rxon_context *ctx = iwl_legacy_rxon_ctx_from_vif(vif);
- int ret;
-
- if (WARN_ON(!priv->cfg->ops->legacy))
- return;
-
- IWL_DEBUG_MAC80211(priv, "changes = 0x%X\n", changes);
-
- mutex_lock(&priv->mutex);
-
- if (!iwl_legacy_is_alive(priv)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- if (changes & BSS_CHANGED_QOS) {
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- ctx->qos_data.qos_active = bss_conf->qos;
- iwl_legacy_update_qos(priv, ctx);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- if (changes & BSS_CHANGED_BEACON_ENABLED) {
- /*
- * the add_interface code must make sure we only ever
- * have a single interface that could be beaconing at
- * any time.
- */
- if (vif->bss_conf.enable_beacon)
- priv->beacon_ctx = ctx;
- else
- priv->beacon_ctx = NULL;
- }
-
- if (changes & BSS_CHANGED_BSSID) {
- IWL_DEBUG_MAC80211(priv, "BSSID %pM\n", bss_conf->bssid);
-
- /*
- * If there is currently a HW scan going on in the
- * background then we need to cancel it else the RXON
- * below/in post_associate will fail.
- */
- if (iwl_legacy_scan_cancel_timeout(priv, 100)) {
- IWL_WARN(priv,
- "Aborted scan still in progress after 100ms\n");
- IWL_DEBUG_MAC80211(priv,
- "leaving - scan abort failed.\n");
- mutex_unlock(&priv->mutex);
- return;
- }
-
- /* mac80211 only sets assoc when in STATION mode */
- if (vif->type == NL80211_IFTYPE_ADHOC || bss_conf->assoc) {
- memcpy(ctx->staging.bssid_addr,
- bss_conf->bssid, ETH_ALEN);
-
- /* currently needed in a few places */
- memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
- } else {
- ctx->staging.filter_flags &=
- ~RXON_FILTER_ASSOC_MSK;
- }
-
- }
-
- /*
- * This needs to be after setting the BSSID in case
- * mac80211 decides to do both changes at once because
- * it will invoke post_associate.
- */
- if (vif->type == NL80211_IFTYPE_ADHOC && changes & BSS_CHANGED_BEACON)
- iwl_legacy_beacon_update(hw, vif);
-
- if (changes & BSS_CHANGED_ERP_PREAMBLE) {
- IWL_DEBUG_MAC80211(priv, "ERP_PREAMBLE %d\n",
- bss_conf->use_short_preamble);
- if (bss_conf->use_short_preamble)
- ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
- }
-
- if (changes & BSS_CHANGED_ERP_CTS_PROT) {
- IWL_DEBUG_MAC80211(priv,
- "ERP_CTS %d\n", bss_conf->use_cts_prot);
- if (bss_conf->use_cts_prot &&
- (priv->band != IEEE80211_BAND_5GHZ))
- ctx->staging.flags |= RXON_FLG_TGG_PROTECT_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK;
- if (bss_conf->use_cts_prot)
- ctx->staging.flags |= RXON_FLG_SELF_CTS_EN;
- else
- ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN;
- }
-
- if (changes & BSS_CHANGED_BASIC_RATES) {
- /* XXX use this information
- *
- * To do that, remove code from iwl_legacy_set_rate() and put something
- * like this here:
- *
- if (A-band)
- ctx->staging.ofdm_basic_rates =
- bss_conf->basic_rates;
- else
- ctx->staging.ofdm_basic_rates =
- bss_conf->basic_rates >> 4;
- ctx->staging.cck_basic_rates =
- bss_conf->basic_rates & 0xF;
- */
- }
-
- if (changes & BSS_CHANGED_HT) {
- iwl_legacy_ht_conf(priv, vif);
-
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- }
-
- if (changes & BSS_CHANGED_ASSOC) {
- IWL_DEBUG_MAC80211(priv, "ASSOC %d\n", bss_conf->assoc);
- if (bss_conf->assoc) {
- priv->timestamp = bss_conf->timestamp;
-
- if (!iwl_legacy_is_rfkill(priv))
- priv->cfg->ops->legacy->post_associate(priv);
- } else
- iwl_legacy_set_no_assoc(priv, vif);
- }
-
- if (changes && iwl_legacy_is_associated_ctx(ctx) && bss_conf->aid) {
- IWL_DEBUG_MAC80211(priv, "Changes (%#x) while associated\n",
- changes);
- ret = iwl_legacy_send_rxon_assoc(priv, ctx);
- if (!ret) {
- /* Sync active_rxon with latest change. */
- memcpy((void *)&ctx->active,
- &ctx->staging,
- sizeof(struct iwl_legacy_rxon_cmd));
- }
- }
-
- if (changes & BSS_CHANGED_BEACON_ENABLED) {
- if (vif->bss_conf.enable_beacon) {
- memcpy(ctx->staging.bssid_addr,
- bss_conf->bssid, ETH_ALEN);
- memcpy(priv->bssid, bss_conf->bssid, ETH_ALEN);
- priv->cfg->ops->legacy->config_ap(priv);
- } else
- iwl_legacy_set_no_assoc(priv, vif);
- }
-
- if (changes & BSS_CHANGED_IBSS) {
- ret = priv->cfg->ops->legacy->manage_ibss_station(priv, vif,
- bss_conf->ibss_joined);
- if (ret)
- IWL_ERR(priv, "failed to %s IBSS station %pM\n",
- bss_conf->ibss_joined ? "add" : "remove",
- bss_conf->bssid);
- }
-
- mutex_unlock(&priv->mutex);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-EXPORT_SYMBOL(iwl_legacy_mac_bss_info_changed);
-
-irqreturn_t iwl_legacy_isr(int irq, void *data)
-{
- struct iwl_priv *priv = data;
- u32 inta, inta_mask;
- u32 inta_fh;
- unsigned long flags;
- if (!priv)
- return IRQ_NONE;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Disable (but don't clear!) interrupts here to avoid
- * back-to-back ISRs and sporadic interrupts from our NIC.
- * If we have something to service, the tasklet will re-enable ints.
- * If we *don't* have something, we'll re-enable before leaving here. */
- inta_mask = iwl_read32(priv, CSR_INT_MASK); /* just for debug */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* Discover which interrupts are active/pending */
- inta = iwl_read32(priv, CSR_INT);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
-
- /* Ignore interrupt if there's nothing in NIC to service.
- * This may be due to IRQ shared with another device,
- * or due to sporadic interrupts thrown from our NIC. */
- if (!inta && !inta_fh) {
- IWL_DEBUG_ISR(priv,
- "Ignore interrupt, inta == 0, inta_fh == 0\n");
- goto none;
- }
-
- if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) {
- /* Hardware disappeared. It might have already raised
- * an interrupt */
- IWL_WARN(priv, "HARDWARE GONE?? INTA == 0x%08x\n", inta);
- goto unplugged;
- }
-
- IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
-
- inta &= ~CSR_INT_BIT_SCD;
-
- /* iwl_irq_tasklet() will service interrupts and re-enable them */
- if (likely(inta || inta_fh))
- tasklet_schedule(&priv->irq_tasklet);
-
-unplugged:
- spin_unlock_irqrestore(&priv->lock, flags);
- return IRQ_HANDLED;
-
-none:
- /* re-enable interrupts here since we don't have anything to service. */
- /* only Re-enable if disabled by irq */
- if (test_bit(STATUS_INT_ENABLED, &priv->status))
- iwl_legacy_enable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- return IRQ_NONE;
-}
-EXPORT_SYMBOL(iwl_legacy_isr);
-
-/*
- * iwl_legacy_tx_cmd_protection: Set rts/cts. 3945 and 4965 only share this
- * function.
- */
-void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
- struct ieee80211_tx_info *info,
- __le16 fc, __le32 *tx_flags)
-{
- if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) {
- *tx_flags |= TX_CMD_FLG_RTS_MSK;
- *tx_flags &= ~TX_CMD_FLG_CTS_MSK;
- *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
-
- if (!ieee80211_is_mgmt(fc))
- return;
-
- switch (fc & cpu_to_le16(IEEE80211_FCTL_STYPE)) {
- case cpu_to_le16(IEEE80211_STYPE_AUTH):
- case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
- case cpu_to_le16(IEEE80211_STYPE_ASSOC_REQ):
- case cpu_to_le16(IEEE80211_STYPE_REASSOC_REQ):
- *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- *tx_flags |= TX_CMD_FLG_CTS_MSK;
- break;
- }
- } else if (info->control.rates[0].flags &
- IEEE80211_TX_RC_USE_CTS_PROTECT) {
- *tx_flags &= ~TX_CMD_FLG_RTS_MSK;
- *tx_flags |= TX_CMD_FLG_CTS_MSK;
- *tx_flags |= TX_CMD_FLG_FULL_TXOP_PROT_MSK;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_tx_cmd_protection);
diff --git a/drivers/net/wireless/iwlegacy/iwl-core.h b/drivers/net/wireless/iwlegacy/iwl-core.h
deleted file mode 100644
index d1271fe..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-core.h
+++ /dev/null
@@ -1,636 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-#ifndef __iwl_legacy_core_h__
-#define __iwl_legacy_core_h__
-
-/************************
- * forward declarations *
- ************************/
-struct iwl_host_cmd;
-struct iwl_cmd;
-
-
-#define IWLWIFI_VERSION "in-tree:"
-#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
-#define DRV_AUTHOR "<ilw@linux.intel.com>"
-
-#define IWL_PCI_DEVICE(dev, subdev, cfg) \
- .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
- .subvendor = PCI_ANY_ID, .subdevice = (subdev), \
- .driver_data = (kernel_ulong_t)&(cfg)
-
-#define TIME_UNIT 1024
-
-#define IWL_SKU_G 0x1
-#define IWL_SKU_A 0x2
-#define IWL_SKU_N 0x8
-
-#define IWL_CMD(x) case x: return #x
-
-struct iwl_hcmd_ops {
- int (*rxon_assoc)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
- int (*commit_rxon)(struct iwl_priv *priv, struct iwl_rxon_context *ctx);
- void (*set_rxon_chain)(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-};
-
-struct iwl_hcmd_utils_ops {
- u16 (*get_hcmd_size)(u8 cmd_id, u16 len);
- u16 (*build_addsta_hcmd)(const struct iwl_legacy_addsta_cmd *cmd,
- u8 *data);
- int (*request_scan)(struct iwl_priv *priv, struct ieee80211_vif *vif);
- void (*post_scan)(struct iwl_priv *priv);
-};
-
-struct iwl_apm_ops {
- int (*init)(struct iwl_priv *priv);
- void (*config)(struct iwl_priv *priv);
-};
-
-struct iwl_debugfs_ops {
- ssize_t (*rx_stats_read)(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
- ssize_t (*tx_stats_read)(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
- ssize_t (*general_stats_read)(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos);
-};
-
-struct iwl_temp_ops {
- void (*temperature)(struct iwl_priv *priv);
-};
-
-struct iwl_lib_ops {
- /* set hw dependent parameters */
- int (*set_hw_params)(struct iwl_priv *priv);
- /* Handling TX */
- void (*txq_update_byte_cnt_tbl)(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- u16 byte_cnt);
- int (*txq_attach_buf_to_tfd)(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- dma_addr_t addr,
- u16 len, u8 reset, u8 pad);
- void (*txq_free_tfd)(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
- int (*txq_init)(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
- /* setup Rx handler */
- void (*rx_handler_setup)(struct iwl_priv *priv);
- /* alive notification after init uCode load */
- void (*init_alive_start)(struct iwl_priv *priv);
- /* check validity of rtc data address */
- int (*is_valid_rtc_data_addr)(u32 addr);
- /* 1st ucode load */
- int (*load_ucode)(struct iwl_priv *priv);
-
- void (*dump_nic_error_log)(struct iwl_priv *priv);
- int (*dump_fh)(struct iwl_priv *priv, char **buf, bool display);
- int (*set_channel_switch)(struct iwl_priv *priv,
- struct ieee80211_channel_switch *ch_switch);
- /* power management */
- struct iwl_apm_ops apm_ops;
-
- /* power */
- int (*send_tx_power) (struct iwl_priv *priv);
- void (*update_chain_flags)(struct iwl_priv *priv);
-
- /* eeprom operations (as defined in iwl-eeprom.h) */
- struct iwl_eeprom_ops eeprom_ops;
-
- /* temperature */
- struct iwl_temp_ops temp_ops;
-
- struct iwl_debugfs_ops debugfs_ops;
-
-};
-
-struct iwl_led_ops {
- int (*cmd)(struct iwl_priv *priv, struct iwl_led_cmd *led_cmd);
-};
-
-struct iwl_legacy_ops {
- void (*post_associate)(struct iwl_priv *priv);
- void (*config_ap)(struct iwl_priv *priv);
- /* station management */
- int (*update_bcast_stations)(struct iwl_priv *priv);
- int (*manage_ibss_station)(struct iwl_priv *priv,
- struct ieee80211_vif *vif, bool add);
-};
-
-struct iwl_ops {
- const struct iwl_lib_ops *lib;
- const struct iwl_hcmd_ops *hcmd;
- const struct iwl_hcmd_utils_ops *utils;
- const struct iwl_led_ops *led;
- const struct iwl_nic_ops *nic;
- const struct iwl_legacy_ops *legacy;
- const struct ieee80211_ops *ieee80211_ops;
-};
-
-struct iwl_mod_params {
- int sw_crypto; /* def: 0 = using hardware encryption */
- int disable_hw_scan; /* def: 0 = use h/w scan */
- int num_of_queues; /* def: HW dependent */
- int disable_11n; /* def: 0 = 11n capabilities enabled */
- int amsdu_size_8K; /* def: 1 = enable 8K amsdu size */
- int antenna; /* def: 0 = both antennas (use diversity) */
- int restart_fw; /* def: 1 = restart firmware */
-};
-
-/*
- * @led_compensation: compensate on the led on/off time per HW according
- * to the deviation to achieve the desired led frequency.
- * The detail algorithm is described in iwl-led.c
- * @chain_noise_num_beacons: number of beacons used to compute chain noise
- * @wd_timeout: TX queues watchdog timeout
- * @temperature_kelvin: temperature report by uCode in kelvin
- * @ucode_tracing: support ucode continuous tracing
- * @sensitivity_calib_by_driver: driver has the capability to perform
- * sensitivity calibration operation
- * @chain_noise_calib_by_driver: driver has the capability to perform
- * chain noise calibration operation
- */
-struct iwl_base_params {
- int eeprom_size;
- int num_of_queues; /* def: HW dependent */
- int num_of_ampdu_queues;/* def: HW dependent */
- /* for iwl_legacy_apm_init() */
- u32 pll_cfg_val;
- bool set_l0s;
- bool use_bsm;
-
- u16 led_compensation;
- int chain_noise_num_beacons;
- unsigned int wd_timeout;
- bool temperature_kelvin;
- const bool ucode_tracing;
- const bool sensitivity_calib_by_driver;
- const bool chain_noise_calib_by_driver;
-};
-
-/**
- * struct iwl_cfg
- * @fw_name_pre: Firmware filename prefix. The api version and extension
- * (.ucode) will be added to filename before loading from disk. The
- * filename is constructed as fw_name_pre<api>.ucode.
- * @ucode_api_max: Highest version of uCode API supported by driver.
- * @ucode_api_min: Lowest version of uCode API supported by driver.
- * @scan_antennas: available antenna for scan operation
- * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off)
- *
- * We enable the driver to be backward compatible wrt API version. The
- * driver specifies which APIs it supports (with @ucode_api_max being the
- * highest and @ucode_api_min the lowest). Firmware will only be loaded if
- * it has a supported API version. The firmware's API version will be
- * stored in @iwl_priv, enabling the driver to make runtime changes based
- * on firmware version used.
- *
- * For example,
- * if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
- * Driver interacts with Firmware API version >= 2.
- * } else {
- * Driver interacts with Firmware API version 1.
- * }
- *
- * The ideal usage of this infrastructure is to treat a new ucode API
- * release as a new hardware revision. That is, through utilizing the
- * iwl_hcmd_utils_ops etc. we accommodate different command structures
- * and flows between hardware versions as well as their API
- * versions.
- *
- */
-struct iwl_cfg {
- /* params specific to an individual device within a device family */
- const char *name;
- const char *fw_name_pre;
- const unsigned int ucode_api_max;
- const unsigned int ucode_api_min;
- u8 valid_tx_ant;
- u8 valid_rx_ant;
- unsigned int sku;
- u16 eeprom_ver;
- u16 eeprom_calib_ver;
- const struct iwl_ops *ops;
- /* module based parameters which can be set from modprobe cmd */
- const struct iwl_mod_params *mod_params;
- /* params not likely to change within a device family */
- struct iwl_base_params *base_params;
- /* params likely to change within a device family */
- u8 scan_rx_antennas[IEEE80211_NUM_BANDS];
- enum iwl_led_mode led_mode;
-};
-
-/***************************
- * L i b *
- ***************************/
-
-struct ieee80211_hw *iwl_legacy_alloc_all(struct iwl_cfg *cfg);
-int iwl_legacy_mac_conf_tx(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, u16 queue,
- const struct ieee80211_tx_queue_params *params);
-int iwl_legacy_mac_tx_last_beacon(struct ieee80211_hw *hw);
-void iwl_legacy_set_rxon_hwcrypto(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- int hw_decrypt);
-int iwl_legacy_check_rxon_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-int iwl_legacy_full_rxon_required(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-int iwl_legacy_set_rxon_channel(struct iwl_priv *priv,
- struct ieee80211_channel *ch,
- struct iwl_rxon_context *ctx);
-void iwl_legacy_set_flags_for_band(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- enum ieee80211_band band,
- struct ieee80211_vif *vif);
-u8 iwl_legacy_get_single_channel_number(struct iwl_priv *priv,
- enum ieee80211_band band);
-void iwl_legacy_set_rxon_ht(struct iwl_priv *priv,
- struct iwl_ht_config *ht_conf);
-bool iwl_legacy_is_ht40_tx_allowed(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct ieee80211_sta_ht_cap *ht_cap);
-void iwl_legacy_connection_init_rx_config(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-void iwl_legacy_set_rate(struct iwl_priv *priv);
-int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u32 decrypt_res,
- struct ieee80211_rx_status *stats);
-void iwl_legacy_irq_handle_error(struct iwl_priv *priv);
-int iwl_legacy_mac_add_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif);
-void iwl_legacy_mac_remove_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif);
-int iwl_legacy_mac_change_interface(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum nl80211_iftype newtype, bool newp2p);
-int iwl_legacy_alloc_txq_mem(struct iwl_priv *priv);
-void iwl_legacy_txq_mem(struct iwl_priv *priv);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv);
-void iwl_legacy_free_traffic_mem(struct iwl_priv *priv);
-void iwl_legacy_reset_traffic_log(struct iwl_priv *priv);
-void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header);
-void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header);
-const char *iwl_legacy_get_mgmt_string(int cmd);
-const char *iwl_legacy_get_ctrl_string(int cmd);
-void iwl_legacy_clear_traffic_stats(struct iwl_priv *priv);
-void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx, __le16 fc,
- u16 len);
-#else
-static inline int iwl_legacy_alloc_traffic_mem(struct iwl_priv *priv)
-{
- return 0;
-}
-static inline void iwl_legacy_free_traffic_mem(struct iwl_priv *priv)
-{
-}
-static inline void iwl_legacy_reset_traffic_log(struct iwl_priv *priv)
-{
-}
-static inline void iwl_legacy_dbg_log_tx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header)
-{
-}
-static inline void iwl_legacy_dbg_log_rx_data_frame(struct iwl_priv *priv,
- u16 length, struct ieee80211_hdr *header)
-{
-}
-static inline void iwl_legacy_update_stats(struct iwl_priv *priv, bool is_tx,
- __le16 fc, u16 len)
-{
-}
-#endif
-/*****************************************************
- * RX handlers.
- * **************************************************/
-void iwl_legacy_rx_pm_sleep_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl_legacy_rx_pm_debug_statistics_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl_legacy_rx_reply_error(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-
-/*****************************************************
-* RX
-******************************************************/
-void iwl_legacy_cmd_queue_unmap(struct iwl_priv *priv);
-void iwl_legacy_cmd_queue_free(struct iwl_priv *priv);
-int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv);
-void iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl_rx_queue *q);
-int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q);
-void iwl_legacy_tx_cmd_complete(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-/* Handlers */
-void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-void iwl_legacy_recover_from_statistics(struct iwl_priv *priv,
- struct iwl_rx_packet *pkt);
-void iwl_legacy_chswitch_done(struct iwl_priv *priv, bool is_success);
-void iwl_legacy_rx_csa(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb);
-
-/* TX helpers */
-
-/*****************************************************
-* TX
-******************************************************/
-void iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv,
- struct iwl_tx_queue *txq);
-int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id);
-void iwl_legacy_tx_queue_reset(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id);
-void iwl_legacy_tx_queue_unmap(struct iwl_priv *priv, int txq_id);
-void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id);
-void iwl_legacy_setup_watchdog(struct iwl_priv *priv);
-/*****************************************************
- * TX power
- ****************************************************/
-int iwl_legacy_set_tx_power(struct iwl_priv *priv, s8 tx_power, bool force);
-
-/*******************************************************************************
- * Rate
- ******************************************************************************/
-
-u8 iwl_legacy_get_lowest_plcp(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-
-/*******************************************************************************
- * Scanning
- ******************************************************************************/
-void iwl_legacy_init_scan_params(struct iwl_priv *priv);
-int iwl_legacy_scan_cancel(struct iwl_priv *priv);
-int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms);
-void iwl_legacy_force_scan_end(struct iwl_priv *priv);
-int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req);
-void iwl_legacy_internal_short_hw_scan(struct iwl_priv *priv);
-int iwl_legacy_force_reset(struct iwl_priv *priv, bool external);
-u16 iwl_legacy_fill_probe_req(struct iwl_priv *priv,
- struct ieee80211_mgmt *frame,
- const u8 *ta, const u8 *ie, int ie_len, int left);
-void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv);
-u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- u8 n_probes);
-u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- struct ieee80211_vif *vif);
-void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv);
-void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv);
-
-/* For faster active scanning, scan will move to the next channel if fewer than
- * PLCP_QUIET_THRESH packets are heard on this channel within
- * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell
- * time if it's a quiet channel (nothing responded to our probe, and there's
- * no other traffic).
- * Disable "quiet" feature by setting PLCP_QUIET_THRESH to 0. */
-#define IWL_ACTIVE_QUIET_TIME cpu_to_le16(10) /* msec */
-#define IWL_PLCP_QUIET_THRESH cpu_to_le16(1) /* packets */
-
-#define IWL_SCAN_CHECK_WATCHDOG (HZ * 7)
-
-/*****************************************************
- * S e n d i n g H o s t C o m m a n d s *
- *****************************************************/
-
-const char *iwl_legacy_get_cmd_string(u8 cmd);
-int __must_check iwl_legacy_send_cmd_sync(struct iwl_priv *priv,
- struct iwl_host_cmd *cmd);
-int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
-int __must_check iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id,
- u16 len, const void *data);
-int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv, u8 id, u16 len,
- const void *data,
- void (*callback)(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt));
-
-int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd);
-
-
-/*****************************************************
- * PCI *
- *****************************************************/
-
-static inline u16 iwl_legacy_pcie_link_ctl(struct iwl_priv *priv)
-{
- int pos;
- u16 pci_lnk_ctl;
- pos = pci_pcie_cap(priv->pci_dev);
- pci_read_config_word(priv->pci_dev, pos + PCI_EXP_LNKCTL, &pci_lnk_ctl);
- return pci_lnk_ctl;
-}
-
-void iwl_legacy_bg_watchdog(unsigned long data);
-u32 iwl_legacy_usecs_to_beacons(struct iwl_priv *priv,
- u32 usec, u32 beacon_interval);
-__le32 iwl_legacy_add_beacon_time(struct iwl_priv *priv, u32 base,
- u32 addon, u32 beacon_interval);
-
-#ifdef CONFIG_PM
-int iwl_legacy_pci_suspend(struct device *device);
-int iwl_legacy_pci_resume(struct device *device);
-extern const struct dev_pm_ops iwl_legacy_pm_ops;
-
-#define IWL_LEGACY_PM_OPS (&iwl_legacy_pm_ops)
-
-#else /* !CONFIG_PM */
-
-#define IWL_LEGACY_PM_OPS NULL
-
-#endif /* !CONFIG_PM */
-
-/*****************************************************
-* Error Handling Debugging
-******************************************************/
-void iwl4965_dump_nic_error_log(struct iwl_priv *priv);
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-#else
-static inline void iwl_legacy_print_rx_config_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
-}
-#endif
-
-void iwl_legacy_clear_isr_stats(struct iwl_priv *priv);
-
-/*****************************************************
-* GEOS
-******************************************************/
-int iwl_legacy_init_geos(struct iwl_priv *priv);
-void iwl_legacy_free_geos(struct iwl_priv *priv);
-
-/*************** DRIVER STATUS FUNCTIONS *****/
-
-#define STATUS_HCMD_ACTIVE 0 /* host command in progress */
-/* 1 is unused (used to be STATUS_HCMD_SYNC_ACTIVE) */
-#define STATUS_INT_ENABLED 2
-#define STATUS_RF_KILL_HW 3
-#define STATUS_CT_KILL 4
-#define STATUS_INIT 5
-#define STATUS_ALIVE 6
-#define STATUS_READY 7
-#define STATUS_TEMPERATURE 8
-#define STATUS_GEO_CONFIGURED 9
-#define STATUS_EXIT_PENDING 10
-#define STATUS_STATISTICS 12
-#define STATUS_SCANNING 13
-#define STATUS_SCAN_ABORTING 14
-#define STATUS_SCAN_HW 15
-#define STATUS_POWER_PMI 16
-#define STATUS_FW_ERROR 17
-#define STATUS_CHANNEL_SWITCH_PENDING 18
-
-static inline int iwl_legacy_is_ready(struct iwl_priv *priv)
-{
- /* The adapter is 'ready' if READY and GEO_CONFIGURED bits are
- * set but EXIT_PENDING is not */
- return test_bit(STATUS_READY, &priv->status) &&
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) &&
- !test_bit(STATUS_EXIT_PENDING, &priv->status);
-}
-
-static inline int iwl_legacy_is_alive(struct iwl_priv *priv)
-{
- return test_bit(STATUS_ALIVE, &priv->status);
-}
-
-static inline int iwl_legacy_is_init(struct iwl_priv *priv)
-{
- return test_bit(STATUS_INIT, &priv->status);
-}
-
-static inline int iwl_legacy_is_rfkill_hw(struct iwl_priv *priv)
-{
- return test_bit(STATUS_RF_KILL_HW, &priv->status);
-}
-
-static inline int iwl_legacy_is_rfkill(struct iwl_priv *priv)
-{
- return iwl_legacy_is_rfkill_hw(priv);
-}
-
-static inline int iwl_legacy_is_ctkill(struct iwl_priv *priv)
-{
- return test_bit(STATUS_CT_KILL, &priv->status);
-}
-
-static inline int iwl_legacy_is_ready_rf(struct iwl_priv *priv)
-{
-
- if (iwl_legacy_is_rfkill(priv))
- return 0;
-
- return iwl_legacy_is_ready(priv);
-}
-
-extern void iwl_legacy_send_bt_config(struct iwl_priv *priv);
-extern int iwl_legacy_send_statistics_request(struct iwl_priv *priv,
- u8 flags, bool clear);
-void iwl_legacy_apm_stop(struct iwl_priv *priv);
-int iwl_legacy_apm_init(struct iwl_priv *priv);
-
-int iwl_legacy_send_rxon_timing(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-static inline int iwl_legacy_send_rxon_assoc(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- return priv->cfg->ops->hcmd->rxon_assoc(priv, ctx);
-}
-static inline int iwl_legacy_commit_rxon(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
-{
- return priv->cfg->ops->hcmd->commit_rxon(priv, ctx);
-}
-static inline const struct ieee80211_supported_band *iwl_get_hw_mode(
- struct iwl_priv *priv, enum ieee80211_band band)
-{
- return priv->hw->wiphy->bands[band];
-}
-
-/* mac80211 handlers */
-int iwl_legacy_mac_config(struct ieee80211_hw *hw, u32 changed);
-void iwl_legacy_mac_reset_tsf(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif);
-void iwl_legacy_mac_bss_info_changed(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *bss_conf,
- u32 changes);
-void iwl_legacy_tx_cmd_protection(struct iwl_priv *priv,
- struct ieee80211_tx_info *info,
- __le16 fc, __le32 *tx_flags);
-
-irqreturn_t iwl_legacy_isr(int irq, void *data);
-
-#endif /* __iwl_legacy_core_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-debug.h b/drivers/net/wireless/iwlegacy/iwl-debug.h
deleted file mode 100644
index ae13112..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-debug.h
+++ /dev/null
@@ -1,198 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_legacy_debug_h__
-#define __iwl_legacy_debug_h__
-
-struct iwl_priv;
-extern u32 iwlegacy_debug_level;
-
-#define IWL_ERR(p, f, a...) dev_err(&((p)->pci_dev->dev), f, ## a)
-#define IWL_WARN(p, f, a...) dev_warn(&((p)->pci_dev->dev), f, ## a)
-#define IWL_INFO(p, f, a...) dev_info(&((p)->pci_dev->dev), f, ## a)
-#define IWL_CRIT(p, f, a...) dev_crit(&((p)->pci_dev->dev), f, ## a)
-
-#define iwl_print_hex_error(priv, p, len) \
-do { \
- print_hex_dump(KERN_ERR, "iwl data: ", \
- DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
-} while (0)
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-#define IWL_DEBUG(__priv, level, fmt, args...) \
-do { \
- if (iwl_legacy_get_debug_level(__priv) & (level)) \
- dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
- "%c %s " fmt, in_interrupt() ? 'I' : 'U', \
- __func__ , ## args); \
-} while (0)
-
-#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) \
-do { \
- if ((iwl_legacy_get_debug_level(__priv) & (level)) && net_ratelimit()) \
- dev_printk(KERN_ERR, &(__priv->hw->wiphy->dev), \
- "%c %s " fmt, in_interrupt() ? 'I' : 'U', \
- __func__ , ## args); \
-} while (0)
-
-#define iwl_print_hex_dump(priv, level, p, len) \
-do { \
- if (iwl_legacy_get_debug_level(priv) & level) \
- print_hex_dump(KERN_DEBUG, "iwl data: ", \
- DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \
-} while (0)
-
-#else
-#define IWL_DEBUG(__priv, level, fmt, args...)
-#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...)
-static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level,
- const void *p, u32 len)
-{}
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
-int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name);
-void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv);
-#else
-static inline int
-iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name)
-{
- return 0;
-}
-static inline void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv)
-{
-}
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */
-
-/*
- * To use the debug system:
- *
- * If you are defining a new debug classification, simply add it to the #define
- * list here in the form of
- *
- * #define IWL_DL_xxxx VALUE
- *
- * where xxxx should be the name of the classification (for example, WEP).
- *
- * You then need to either add a IWL_xxxx_DEBUG() macro definition for your
- * classification, or use IWL_DEBUG(IWL_DL_xxxx, ...) whenever you want
- * to send output to that classification.
- *
- * The active debug levels can be accessed via files
- *
- * /sys/module/iwl4965/parameters/debug{50}
- * /sys/module/iwl3945/parameters/debug
- * /sys/class/net/wlan0/device/debug_level
- *
- * when CONFIG_IWLWIFI_LEGACY_DEBUG=y.
- */
-
-/* 0x0000000F - 0x00000001 */
-#define IWL_DL_INFO (1 << 0)
-#define IWL_DL_MAC80211 (1 << 1)
-#define IWL_DL_HCMD (1 << 2)
-#define IWL_DL_STATE (1 << 3)
-/* 0x000000F0 - 0x00000010 */
-#define IWL_DL_MACDUMP (1 << 4)
-#define IWL_DL_HCMD_DUMP (1 << 5)
-#define IWL_DL_EEPROM (1 << 6)
-#define IWL_DL_RADIO (1 << 7)
-/* 0x00000F00 - 0x00000100 */
-#define IWL_DL_POWER (1 << 8)
-#define IWL_DL_TEMP (1 << 9)
-#define IWL_DL_NOTIF (1 << 10)
-#define IWL_DL_SCAN (1 << 11)
-/* 0x0000F000 - 0x00001000 */
-#define IWL_DL_ASSOC (1 << 12)
-#define IWL_DL_DROP (1 << 13)
-#define IWL_DL_TXPOWER (1 << 14)
-#define IWL_DL_AP (1 << 15)
-/* 0x000F0000 - 0x00010000 */
-#define IWL_DL_FW (1 << 16)
-#define IWL_DL_RF_KILL (1 << 17)
-#define IWL_DL_FW_ERRORS (1 << 18)
-#define IWL_DL_LED (1 << 19)
-/* 0x00F00000 - 0x00100000 */
-#define IWL_DL_RATE (1 << 20)
-#define IWL_DL_CALIB (1 << 21)
-#define IWL_DL_WEP (1 << 22)
-#define IWL_DL_TX (1 << 23)
-/* 0x0F000000 - 0x01000000 */
-#define IWL_DL_RX (1 << 24)
-#define IWL_DL_ISR (1 << 25)
-#define IWL_DL_HT (1 << 26)
-#define IWL_DL_IO (1 << 27)
-/* 0xF0000000 - 0x10000000 */
-#define IWL_DL_11H (1 << 28)
-#define IWL_DL_STATS (1 << 29)
-#define IWL_DL_TX_REPLY (1 << 30)
-#define IWL_DL_QOS (1 << 31)
-
-#define IWL_DEBUG_INFO(p, f, a...) IWL_DEBUG(p, IWL_DL_INFO, f, ## a)
-#define IWL_DEBUG_MAC80211(p, f, a...) IWL_DEBUG(p, IWL_DL_MAC80211, f, ## a)
-#define IWL_DEBUG_MACDUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_MACDUMP, f, ## a)
-#define IWL_DEBUG_TEMP(p, f, a...) IWL_DEBUG(p, IWL_DL_TEMP, f, ## a)
-#define IWL_DEBUG_SCAN(p, f, a...) IWL_DEBUG(p, IWL_DL_SCAN, f, ## a)
-#define IWL_DEBUG_RX(p, f, a...) IWL_DEBUG(p, IWL_DL_RX, f, ## a)
-#define IWL_DEBUG_TX(p, f, a...) IWL_DEBUG(p, IWL_DL_TX, f, ## a)
-#define IWL_DEBUG_ISR(p, f, a...) IWL_DEBUG(p, IWL_DL_ISR, f, ## a)
-#define IWL_DEBUG_LED(p, f, a...) IWL_DEBUG(p, IWL_DL_LED, f, ## a)
-#define IWL_DEBUG_WEP(p, f, a...) IWL_DEBUG(p, IWL_DL_WEP, f, ## a)
-#define IWL_DEBUG_HC(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD, f, ## a)
-#define IWL_DEBUG_HC_DUMP(p, f, a...) IWL_DEBUG(p, IWL_DL_HCMD_DUMP, f, ## a)
-#define IWL_DEBUG_EEPROM(p, f, a...) IWL_DEBUG(p, IWL_DL_EEPROM, f, ## a)
-#define IWL_DEBUG_CALIB(p, f, a...) IWL_DEBUG(p, IWL_DL_CALIB, f, ## a)
-#define IWL_DEBUG_FW(p, f, a...) IWL_DEBUG(p, IWL_DL_FW, f, ## a)
-#define IWL_DEBUG_RF_KILL(p, f, a...) IWL_DEBUG(p, IWL_DL_RF_KILL, f, ## a)
-#define IWL_DEBUG_DROP(p, f, a...) IWL_DEBUG(p, IWL_DL_DROP, f, ## a)
-#define IWL_DEBUG_DROP_LIMIT(p, f, a...) \
- IWL_DEBUG_LIMIT(p, IWL_DL_DROP, f, ## a)
-#define IWL_DEBUG_AP(p, f, a...) IWL_DEBUG(p, IWL_DL_AP, f, ## a)
-#define IWL_DEBUG_TXPOWER(p, f, a...) IWL_DEBUG(p, IWL_DL_TXPOWER, f, ## a)
-#define IWL_DEBUG_IO(p, f, a...) IWL_DEBUG(p, IWL_DL_IO, f, ## a)
-#define IWL_DEBUG_RATE(p, f, a...) IWL_DEBUG(p, IWL_DL_RATE, f, ## a)
-#define IWL_DEBUG_RATE_LIMIT(p, f, a...) \
- IWL_DEBUG_LIMIT(p, IWL_DL_RATE, f, ## a)
-#define IWL_DEBUG_NOTIF(p, f, a...) IWL_DEBUG(p, IWL_DL_NOTIF, f, ## a)
-#define IWL_DEBUG_ASSOC(p, f, a...) \
- IWL_DEBUG(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
-#define IWL_DEBUG_ASSOC_LIMIT(p, f, a...) \
- IWL_DEBUG_LIMIT(p, IWL_DL_ASSOC | IWL_DL_INFO, f, ## a)
-#define IWL_DEBUG_HT(p, f, a...) IWL_DEBUG(p, IWL_DL_HT, f, ## a)
-#define IWL_DEBUG_STATS(p, f, a...) IWL_DEBUG(p, IWL_DL_STATS, f, ## a)
-#define IWL_DEBUG_STATS_LIMIT(p, f, a...) \
- IWL_DEBUG_LIMIT(p, IWL_DL_STATS, f, ## a)
-#define IWL_DEBUG_TX_REPLY(p, f, a...) IWL_DEBUG(p, IWL_DL_TX_REPLY, f, ## a)
-#define IWL_DEBUG_TX_REPLY_LIMIT(p, f, a...) \
- IWL_DEBUG_LIMIT(p, IWL_DL_TX_REPLY, f, ## a)
-#define IWL_DEBUG_QOS(p, f, a...) IWL_DEBUG(p, IWL_DL_QOS, f, ## a)
-#define IWL_DEBUG_RADIO(p, f, a...) IWL_DEBUG(p, IWL_DL_RADIO, f, ## a)
-#define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a)
-#define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a)
-
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-debugfs.c b/drivers/net/wireless/iwlegacy/iwl-debugfs.c
deleted file mode 100644
index 996996a..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-debugfs.c
+++ /dev/null
@@ -1,1313 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-#include <linux/ieee80211.h>
-#include <net/mac80211.h>
-
-
-#include "iwl-dev.h"
-#include "iwl-debug.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-
-/* create and remove of files */
-#define DEBUGFS_ADD_FILE(name, parent, mode) do { \
- if (!debugfs_create_file(#name, mode, parent, priv, \
- &iwl_legacy_dbgfs_##name##_ops)) \
- goto err; \
-} while (0)
-
-#define DEBUGFS_ADD_BOOL(name, parent, ptr) do { \
- struct dentry *__tmp; \
- __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR, \
- parent, ptr); \
- if (IS_ERR(__tmp) || !__tmp) \
- goto err; \
-} while (0)
-
-#define DEBUGFS_ADD_X32(name, parent, ptr) do { \
- struct dentry *__tmp; \
- __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR, \
- parent, ptr); \
- if (IS_ERR(__tmp) || !__tmp) \
- goto err; \
-} while (0)
-
-/* file operation */
-#define DEBUGFS_READ_FUNC(name) \
-static ssize_t iwl_legacy_dbgfs_##name##_read(struct file *file, \
- char __user *user_buf, \
- size_t count, loff_t *ppos);
-
-#define DEBUGFS_WRITE_FUNC(name) \
-static ssize_t iwl_legacy_dbgfs_##name##_write(struct file *file, \
- const char __user *user_buf, \
- size_t count, loff_t *ppos);
-
-
-static int
-iwl_legacy_dbgfs_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-#define DEBUGFS_READ_FILE_OPS(name) \
- DEBUGFS_READ_FUNC(name); \
-static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
- .read = iwl_legacy_dbgfs_##name##_read, \
- .open = iwl_legacy_dbgfs_open_file_generic, \
- .llseek = generic_file_llseek, \
-};
-
-#define DEBUGFS_WRITE_FILE_OPS(name) \
- DEBUGFS_WRITE_FUNC(name); \
-static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
- .write = iwl_legacy_dbgfs_##name##_write, \
- .open = iwl_legacy_dbgfs_open_file_generic, \
- .llseek = generic_file_llseek, \
-};
-
-#define DEBUGFS_READ_WRITE_FILE_OPS(name) \
- DEBUGFS_READ_FUNC(name); \
- DEBUGFS_WRITE_FUNC(name); \
-static const struct file_operations iwl_legacy_dbgfs_##name##_ops = { \
- .write = iwl_legacy_dbgfs_##name##_write, \
- .read = iwl_legacy_dbgfs_##name##_read, \
- .open = iwl_legacy_dbgfs_open_file_generic, \
- .llseek = generic_file_llseek, \
-};
-
-static ssize_t iwl_legacy_dbgfs_tx_statistics_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- char *buf;
- int pos = 0;
-
- int cnt;
- ssize_t ret;
- const size_t bufsz = 100 +
- sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
- for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\t%25s\t\t: %u\n",
- iwl_legacy_get_mgmt_string(cnt),
- priv->tx_stats.mgmt[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
- for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\t%25s\t\t: %u\n",
- iwl_legacy_get_ctrl_string(cnt),
- priv->tx_stats.ctrl[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
- pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
- priv->tx_stats.data_cnt);
- pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
- priv->tx_stats.data_bytes);
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t
-iwl_legacy_dbgfs_clear_traffic_statistics_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- u32 clear_flag;
- char buf[8];
- int buf_size;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%x", &clear_flag) != 1)
- return -EFAULT;
- iwl_legacy_clear_traffic_stats(priv);
-
- return count;
-}
-
-static ssize_t iwl_legacy_dbgfs_rx_statistics_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- char *buf;
- int pos = 0;
- int cnt;
- ssize_t ret;
- const size_t bufsz = 100 +
- sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
- for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\t%25s\t\t: %u\n",
- iwl_legacy_get_mgmt_string(cnt),
- priv->rx_stats.mgmt[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
- for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\t%25s\t\t: %u\n",
- iwl_legacy_get_ctrl_string(cnt),
- priv->rx_stats.ctrl[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
- pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
- priv->rx_stats.data_cnt);
- pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
- priv->rx_stats.data_bytes);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-#define BYTE1_MASK 0x000000ff;
-#define BYTE2_MASK 0x0000ffff;
-#define BYTE3_MASK 0x00ffffff;
-static ssize_t iwl_legacy_dbgfs_sram_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- u32 val;
- char *buf;
- ssize_t ret;
- int i;
- int pos = 0;
- struct iwl_priv *priv = file->private_data;
- size_t bufsz;
-
- /* default is to dump the entire data segment */
- if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
- priv->dbgfs_sram_offset = 0x800000;
- if (priv->ucode_type == UCODE_INIT)
- priv->dbgfs_sram_len = priv->ucode_init_data.len;
- else
- priv->dbgfs_sram_len = priv->ucode_data.len;
- }
- bufsz = 30 + priv->dbgfs_sram_len * sizeof(char) * 10;
- buf = kmalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
- priv->dbgfs_sram_len);
- pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
- priv->dbgfs_sram_offset);
- for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
- val = iwl_legacy_read_targ_mem(priv, priv->dbgfs_sram_offset + \
- priv->dbgfs_sram_len - i);
- if (i < 4) {
- switch (i) {
- case 1:
- val &= BYTE1_MASK;
- break;
- case 2:
- val &= BYTE2_MASK;
- break;
- case 3:
- val &= BYTE3_MASK;
- break;
- }
- }
- if (!(i % 16))
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_sram_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[64];
- int buf_size;
- u32 offset, len;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
- priv->dbgfs_sram_offset = offset;
- priv->dbgfs_sram_len = len;
- } else {
- priv->dbgfs_sram_offset = 0;
- priv->dbgfs_sram_len = 0;
- }
-
- return count;
-}
-
-static ssize_t
-iwl_legacy_dbgfs_stations_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- struct iwl_station_entry *station;
- int max_sta = priv->hw_params.max_stations;
- char *buf;
- int i, j, pos = 0;
- ssize_t ret;
- /* Add 30 for initial string */
- const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
-
- buf = kmalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
- priv->num_stations);
-
- for (i = 0; i < max_sta; i++) {
- station = &priv->stations[i];
- if (!station->used)
- continue;
- pos += scnprintf(buf + pos, bufsz - pos,
- "station %d - addr: %pM, flags: %#x\n",
- i, station->sta.sta.addr,
- station->sta.station_flags_msk);
- pos += scnprintf(buf + pos, bufsz - pos,
- "TID\tseq_num\ttxq_id\tframes\ttfds\t");
- pos += scnprintf(buf + pos, bufsz - pos,
- "start_idx\tbitmap\t\t\trate_n_flags\n");
-
- for (j = 0; j < MAX_TID_COUNT; j++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "%d:\t%#x\t%#x\t%u\t%u\t%u\t\t%#.16llx\t%#x",
- j, station->tid[j].seq_number,
- station->tid[j].agg.txq_id,
- station->tid[j].agg.frame_count,
- station->tid[j].tfds_in_queue,
- station->tid[j].agg.start_idx,
- station->tid[j].agg.bitmap,
- station->tid[j].agg.rate_n_flags);
-
- if (station->tid[j].agg.wait_for_ba)
- pos += scnprintf(buf + pos, bufsz - pos,
- " - waitforba");
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- }
-
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- }
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_nvm_read(struct file *file,
- char __user *user_buf,
- size_t count,
- loff_t *ppos)
-{
- ssize_t ret;
- struct iwl_priv *priv = file->private_data;
- int pos = 0, ofs = 0, buf_size = 0;
- const u8 *ptr;
- char *buf;
- u16 eeprom_ver;
- size_t eeprom_len = priv->cfg->base_params->eeprom_size;
- buf_size = 4 * eeprom_len + 256;
-
- if (eeprom_len % 16) {
- IWL_ERR(priv, "NVM size is not multiple of 16.\n");
- return -ENODATA;
- }
-
- ptr = priv->eeprom;
- if (!ptr) {
- IWL_ERR(priv, "Invalid EEPROM memory\n");
- return -ENOMEM;
- }
-
- /* 4 characters for byte 0xYY */
- buf = kzalloc(buf_size, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
- eeprom_ver = iwl_legacy_eeprom_query16(priv, EEPROM_VERSION);
- pos += scnprintf(buf + pos, buf_size - pos, "EEPROM "
- "version: 0x%x\n", eeprom_ver);
- for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
- pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
- hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
- buf_size - pos, 0);
- pos += strlen(buf + pos);
- if (buf_size - pos > 0)
- buf[pos++] = '\n';
- }
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t
-iwl_legacy_dbgfs_channels_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- struct ieee80211_channel *channels = NULL;
- const struct ieee80211_supported_band *supp_band = NULL;
- int pos = 0, i, bufsz = PAGE_SIZE;
- char *buf;
- ssize_t ret;
-
- if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
- return -EAGAIN;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
- if (supp_band) {
- channels = supp_band->channels;
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "Displaying %d channels in 2.4GHz band 802.11bg):\n",
- supp_band->n_channels);
-
- for (i = 0; i < supp_band->n_channels; i++)
- pos += scnprintf(buf + pos, bufsz - pos,
- "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].hw_value,
- channels[i].max_power,
- channels[i].flags & IEEE80211_CHAN_RADAR ?
- " (IEEE 802.11h required)" : "",
- ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
- || (channels[i].flags &
- IEEE80211_CHAN_RADAR)) ? "" :
- ", IBSS",
- channels[i].flags &
- IEEE80211_CHAN_PASSIVE_SCAN ?
- "passive only" : "active/passive");
- }
- supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
- if (supp_band) {
- channels = supp_band->channels;
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "Displaying %d channels in 5.2GHz band (802.11a)\n",
- supp_band->n_channels);
-
- for (i = 0; i < supp_band->n_channels; i++)
- pos += scnprintf(buf + pos, bufsz - pos,
- "%d: %ddBm: BSS%s%s, %s.\n",
- channels[i].hw_value,
- channels[i].max_power,
- channels[i].flags & IEEE80211_CHAN_RADAR ?
- " (IEEE 802.11h required)" : "",
- ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
- || (channels[i].flags &
- IEEE80211_CHAN_RADAR)) ? "" :
- ", IBSS",
- channels[i].flags &
- IEEE80211_CHAN_PASSIVE_SCAN ?
- "passive only" : "active/passive");
- }
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_status_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- char buf[512];
- int pos = 0;
- const size_t bufsz = sizeof(buf);
-
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
- test_bit(STATUS_HCMD_ACTIVE, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
- test_bit(STATUS_INT_ENABLED, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
- test_bit(STATUS_RF_KILL_HW, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
- test_bit(STATUS_CT_KILL, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
- test_bit(STATUS_INIT, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
- test_bit(STATUS_ALIVE, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
- test_bit(STATUS_READY, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
- test_bit(STATUS_TEMPERATURE, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
- test_bit(STATUS_GEO_CONFIGURED, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
- test_bit(STATUS_EXIT_PENDING, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
- test_bit(STATUS_STATISTICS, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
- test_bit(STATUS_SCANNING, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
- test_bit(STATUS_SCAN_ABORTING, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
- test_bit(STATUS_SCAN_HW, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
- test_bit(STATUS_POWER_PMI, &priv->status));
- pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
- test_bit(STATUS_FW_ERROR, &priv->status));
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_interrupt_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- int cnt = 0;
- char *buf;
- int bufsz = 24 * 64; /* 24 items * 64 char per item */
- ssize_t ret;
-
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "Interrupt Statistics Report:\n");
-
- pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
- priv->isr_stats.hw);
- pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
- priv->isr_stats.sw);
- if (priv->isr_stats.sw || priv->isr_stats.hw) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tLast Restarting Code: 0x%X\n",
- priv->isr_stats.err_code);
- }
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
- priv->isr_stats.sch);
- pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
- priv->isr_stats.alive);
-#endif
- pos += scnprintf(buf + pos, bufsz - pos,
- "HW RF KILL switch toggled:\t %u\n",
- priv->isr_stats.rfkill);
-
- pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
- priv->isr_stats.ctkill);
-
- pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
- priv->isr_stats.wakeup);
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "Rx command responses:\t\t %u\n",
- priv->isr_stats.rx);
- for (cnt = 0; cnt < REPLY_MAX; cnt++) {
- if (priv->isr_stats.rx_handlers[cnt] > 0)
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tRx handler[%36s]:\t\t %u\n",
- iwl_legacy_get_cmd_string(cnt),
- priv->isr_stats.rx_handlers[cnt]);
- }
-
- pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
- priv->isr_stats.tx);
-
- pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
- priv->isr_stats.unhandled);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_interrupt_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- u32 reset_flag;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%x", &reset_flag) != 1)
- return -EFAULT;
- if (reset_flag == 0)
- iwl_legacy_clear_isr_stats(priv);
-
- return count;
-}
-
-static ssize_t
-iwl_legacy_dbgfs_qos_read(struct file *file, char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- struct iwl_rxon_context *ctx;
- int pos = 0, i;
- char buf[256 * NUM_IWL_RXON_CTX];
- const size_t bufsz = sizeof(buf);
-
- for_each_context(priv, ctx) {
- pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n",
- ctx->ctxid);
- for (i = 0; i < AC_NUM; i++) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tcw_min\tcw_max\taifsn\ttxop\n");
- pos += scnprintf(buf + pos, bufsz - pos,
- "AC[%d]\t%u\t%u\t%u\t%u\n", i,
- ctx->qos_data.def_qos_parm.ac[i].cw_min,
- ctx->qos_data.def_qos_parm.ac[i].cw_max,
- ctx->qos_data.def_qos_parm.ac[i].aifsn,
- ctx->qos_data.def_qos_parm.ac[i].edca_txop);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- }
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_disable_ht40_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int ht40;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%d", &ht40) != 1)
- return -EFAULT;
- if (!iwl_legacy_is_any_associated(priv))
- priv->disable_ht40 = ht40 ? true : false;
- else {
- IWL_ERR(priv, "Sta associated with AP - "
- "Change to 40MHz channel support is not allowed\n");
- return -EINVAL;
- }
-
- return count;
-}
-
-static ssize_t iwl_legacy_dbgfs_disable_ht40_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[100];
- int pos = 0;
- const size_t bufsz = sizeof(buf);
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "11n 40MHz Mode: %s\n",
- priv->disable_ht40 ? "Disabled" : "Enabled");
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-DEBUGFS_READ_WRITE_FILE_OPS(sram);
-DEBUGFS_READ_FILE_OPS(nvm);
-DEBUGFS_READ_FILE_OPS(stations);
-DEBUGFS_READ_FILE_OPS(channels);
-DEBUGFS_READ_FILE_OPS(status);
-DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
-DEBUGFS_READ_FILE_OPS(qos);
-DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
-
-static ssize_t iwl_legacy_dbgfs_traffic_log_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- int pos = 0, ofs = 0;
- int cnt = 0, entry;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- struct iwl_rx_queue *rxq = &priv->rxq;
- char *buf;
- int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
- (priv->cfg->base_params->num_of_queues * 32 * 8) + 400;
- const u8 *ptr;
- ssize_t ret;
-
- if (!priv->txq) {
- IWL_ERR(priv, "txq not ready\n");
- return -EAGAIN;
- }
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate buffer\n");
- return -ENOMEM;
- }
- pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
- for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
- txq = &priv->txq[cnt];
- q = &txq->q;
- pos += scnprintf(buf + pos, bufsz - pos,
- "q[%d]: read_ptr: %u, write_ptr: %u\n",
- cnt, q->read_ptr, q->write_ptr);
- }
- if (priv->tx_traffic && (iwlegacy_debug_level & IWL_DL_TX)) {
- ptr = priv->tx_traffic;
- pos += scnprintf(buf + pos, bufsz - pos,
- "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
- for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
- for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
- entry++, ofs += 16) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "0x%.4x ", ofs);
- hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
- buf + pos, bufsz - pos, 0);
- pos += strlen(buf + pos);
- if (bufsz - pos > 0)
- buf[pos++] = '\n';
- }
- }
- }
-
- pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
- pos += scnprintf(buf + pos, bufsz - pos,
- "read: %u, write: %u\n",
- rxq->read, rxq->write);
-
- if (priv->rx_traffic && (iwlegacy_debug_level & IWL_DL_RX)) {
- ptr = priv->rx_traffic;
- pos += scnprintf(buf + pos, bufsz - pos,
- "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
- for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
- for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
- entry++, ofs += 16) {
- pos += scnprintf(buf + pos, bufsz - pos,
- "0x%.4x ", ofs);
- hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
- buf + pos, bufsz - pos, 0);
- pos += strlen(buf + pos);
- if (bufsz - pos > 0)
- buf[pos++] = '\n';
- }
- }
- }
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_traffic_log_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int traffic_log;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%d", &traffic_log) != 1)
- return -EFAULT;
- if (traffic_log == 0)
- iwl_legacy_reset_traffic_log(priv);
-
- return count;
-}
-
-static ssize_t iwl_legacy_dbgfs_tx_queue_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- struct iwl_tx_queue *txq;
- struct iwl_queue *q;
- char *buf;
- int pos = 0;
- int cnt;
- int ret;
- const size_t bufsz = sizeof(char) * 64 *
- priv->cfg->base_params->num_of_queues;
-
- if (!priv->txq) {
- IWL_ERR(priv, "txq not ready\n");
- return -EAGAIN;
- }
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
-
- for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
- txq = &priv->txq[cnt];
- q = &txq->q;
- pos += scnprintf(buf + pos, bufsz - pos,
- "hwq %.2d: read=%u write=%u stop=%d"
- " swq_id=%#.2x (ac %d/hwq %d)\n",
- cnt, q->read_ptr, q->write_ptr,
- !!test_bit(cnt, priv->queue_stopped),
- txq->swq_id, txq->swq_id & 3,
- (txq->swq_id >> 2) & 0x1f);
- if (cnt >= 4)
- continue;
- /* for the ACs, display the stop count too */
- pos += scnprintf(buf + pos, bufsz - pos,
- " stop-count: %d\n",
- atomic_read(&priv->queue_stop_count[cnt]));
- }
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_rx_queue_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- struct iwl_rx_queue *rxq = &priv->rxq;
- char buf[256];
- int pos = 0;
- const size_t bufsz = sizeof(buf);
-
- pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
- rxq->read);
- pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
- rxq->write);
- pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
- rxq->free_count);
- if (rxq->rb_stts) {
- pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
- le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF);
- } else {
- pos += scnprintf(buf + pos, bufsz - pos,
- "closed_rb_num: Not Allocated\n");
- }
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_ucode_rx_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- return priv->cfg->ops->lib->debugfs_ops.rx_stats_read(file,
- user_buf, count, ppos);
-}
-
-static ssize_t iwl_legacy_dbgfs_ucode_tx_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- return priv->cfg->ops->lib->debugfs_ops.tx_stats_read(file,
- user_buf, count, ppos);
-}
-
-static ssize_t iwl_legacy_dbgfs_ucode_general_stats_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- return priv->cfg->ops->lib->debugfs_ops.general_stats_read(file,
- user_buf, count, ppos);
-}
-
-static ssize_t iwl_legacy_dbgfs_sensitivity_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- int cnt = 0;
- char *buf;
- int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
- ssize_t ret;
- struct iwl_sensitivity_data *data;
-
- data = &priv->sensitivity_data;
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
- data->auto_corr_ofdm);
- pos += scnprintf(buf + pos, bufsz - pos,
- "auto_corr_ofdm_mrc:\t\t %u\n",
- data->auto_corr_ofdm_mrc);
- pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
- data->auto_corr_ofdm_x1);
- pos += scnprintf(buf + pos, bufsz - pos,
- "auto_corr_ofdm_mrc_x1:\t\t %u\n",
- data->auto_corr_ofdm_mrc_x1);
- pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
- data->auto_corr_cck);
- pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
- data->auto_corr_cck_mrc);
- pos += scnprintf(buf + pos, bufsz - pos,
- "last_bad_plcp_cnt_ofdm:\t\t %u\n",
- data->last_bad_plcp_cnt_ofdm);
- pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
- data->last_fa_cnt_ofdm);
- pos += scnprintf(buf + pos, bufsz - pos,
- "last_bad_plcp_cnt_cck:\t\t %u\n",
- data->last_bad_plcp_cnt_cck);
- pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
- data->last_fa_cnt_cck);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
- data->nrg_curr_state);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
- data->nrg_prev_state);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
- for (cnt = 0; cnt < 10; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos, " %u",
- data->nrg_value[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
- for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos, " %u",
- data->nrg_silence_rssi[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
- data->nrg_silence_ref);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
- data->nrg_energy_idx);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
- data->nrg_silence_idx);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
- data->nrg_th_cck);
- pos += scnprintf(buf + pos, bufsz - pos,
- "nrg_auto_corr_silence_diff:\t %u\n",
- data->nrg_auto_corr_silence_diff);
- pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
- data->num_in_cck_no_fa);
- pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
- data->nrg_th_ofdm);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-
-static ssize_t iwl_legacy_dbgfs_chain_noise_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- int cnt = 0;
- char *buf;
- int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
- ssize_t ret;
- struct iwl_chain_noise_data *data;
-
- data = &priv->chain_noise_data;
- buf = kzalloc(bufsz, GFP_KERNEL);
- if (!buf) {
- IWL_ERR(priv, "Can not allocate Buffer\n");
- return -ENOMEM;
- }
-
- pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
- data->active_chains);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
- data->chain_noise_a);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
- data->chain_noise_b);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
- data->chain_noise_c);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
- data->chain_signal_a);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
- data->chain_signal_b);
- pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
- data->chain_signal_c);
- pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
- data->beacon_count);
-
- pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
- for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos, " %u",
- data->disconn_array[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
- for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
- pos += scnprintf(buf + pos, bufsz - pos, " %u",
- data->delta_gain_code[cnt]);
- }
- pos += scnprintf(buf + pos, bufsz - pos, "\n");
- pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
- data->radio_write);
- pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
- data->state);
-
- ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
- kfree(buf);
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_power_save_status_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[60];
- int pos = 0;
- const size_t bufsz = sizeof(buf);
- u32 pwrsave_status;
-
- pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_REG_POWER_SAVE_STATUS_MSK;
-
- pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
- pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
- (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
- (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
- (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
- "error");
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_clear_ucode_statistics_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int clear;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%d", &clear) != 1)
- return -EFAULT;
-
- /* make request to uCode to retrieve statistics information */
- mutex_lock(&priv->mutex);
- iwl_legacy_send_statistics_request(priv, CMD_SYNC, true);
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static ssize_t iwl_legacy_dbgfs_rxon_flags_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int len = 0;
- char buf[20];
-
- len = sprintf(buf, "0x%04X\n",
- le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.flags));
- return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t iwl_legacy_dbgfs_rxon_filter_flags_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int len = 0;
- char buf[20];
-
- len = sprintf(buf, "0x%04X\n",
- le32_to_cpu(priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags));
- return simple_read_from_buffer(user_buf, count, ppos, buf, len);
-}
-
-static ssize_t iwl_legacy_dbgfs_fh_reg_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char *buf;
- int pos = 0;
- ssize_t ret = -EFAULT;
-
- if (priv->cfg->ops->lib->dump_fh) {
- ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
- if (buf) {
- ret = simple_read_from_buffer(user_buf,
- count, ppos, buf, pos);
- kfree(buf);
- }
- }
-
- return ret;
-}
-
-static ssize_t iwl_legacy_dbgfs_missed_beacon_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char buf[12];
- const size_t bufsz = sizeof(buf);
-
- pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
- priv->missed_beacon_threshold);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_missed_beacon_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos)
-{
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int missed;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%d", &missed) != 1)
- return -EINVAL;
-
- if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
- missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
- priv->missed_beacon_threshold =
- IWL_MISSED_BEACON_THRESHOLD_DEF;
- else
- priv->missed_beacon_threshold = missed;
-
- return count;
-}
-
-static ssize_t iwl_legacy_dbgfs_force_reset_read(struct file *file,
- char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- int pos = 0;
- char buf[300];
- const size_t bufsz = sizeof(buf);
- struct iwl_force_reset *force_reset;
-
- force_reset = &priv->force_reset;
-
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tnumber of reset request: %d\n",
- force_reset->reset_request_count);
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tnumber of reset request success: %d\n",
- force_reset->reset_success_count);
- pos += scnprintf(buf + pos, bufsz - pos,
- "\tnumber of reset request reject: %d\n",
- force_reset->reset_reject_count);
- pos += scnprintf(buf + pos, bufsz - pos,
- "\treset duration: %lu\n",
- force_reset->reset_duration);
-
- return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
-}
-
-static ssize_t iwl_legacy_dbgfs_force_reset_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- int ret;
- struct iwl_priv *priv = file->private_data;
-
- ret = iwl_legacy_force_reset(priv, true);
-
- return ret ? ret : count;
-}
-
-static ssize_t iwl_legacy_dbgfs_wd_timeout_write(struct file *file,
- const char __user *user_buf,
- size_t count, loff_t *ppos) {
-
- struct iwl_priv *priv = file->private_data;
- char buf[8];
- int buf_size;
- int timeout;
-
- memset(buf, 0, sizeof(buf));
- buf_size = min(count, sizeof(buf) - 1);
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
- if (sscanf(buf, "%d", &timeout) != 1)
- return -EINVAL;
- if (timeout < 0 || timeout > IWL_MAX_WD_TIMEOUT)
- timeout = IWL_DEF_WD_TIMEOUT;
-
- priv->cfg->base_params->wd_timeout = timeout;
- iwl_legacy_setup_watchdog(priv);
- return count;
-}
-
-DEBUGFS_READ_FILE_OPS(rx_statistics);
-DEBUGFS_READ_FILE_OPS(tx_statistics);
-DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
-DEBUGFS_READ_FILE_OPS(rx_queue);
-DEBUGFS_READ_FILE_OPS(tx_queue);
-DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
-DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
-DEBUGFS_READ_FILE_OPS(ucode_general_stats);
-DEBUGFS_READ_FILE_OPS(sensitivity);
-DEBUGFS_READ_FILE_OPS(chain_noise);
-DEBUGFS_READ_FILE_OPS(power_save_status);
-DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
-DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
-DEBUGFS_READ_FILE_OPS(fh_reg);
-DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
-DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
-DEBUGFS_READ_FILE_OPS(rxon_flags);
-DEBUGFS_READ_FILE_OPS(rxon_filter_flags);
-DEBUGFS_WRITE_FILE_OPS(wd_timeout);
-
-/*
- * Create the debugfs files and directories
- *
- */
-int iwl_legacy_dbgfs_register(struct iwl_priv *priv, const char *name)
-{
- struct dentry *phyd = priv->hw->wiphy->debugfsdir;
- struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
-
- dir_drv = debugfs_create_dir(name, phyd);
- if (!dir_drv)
- return -ENOMEM;
-
- priv->debugfs_dir = dir_drv;
-
- dir_data = debugfs_create_dir("data", dir_drv);
- if (!dir_data)
- goto err;
- dir_rf = debugfs_create_dir("rf", dir_drv);
- if (!dir_rf)
- goto err;
- dir_debug = debugfs_create_dir("debug", dir_drv);
- if (!dir_debug)
- goto err;
-
- DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
- DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
- DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
- DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
- DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
- DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
- DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
- DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
- DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
- DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
-
- if (priv->cfg->base_params->sensitivity_calib_by_driver)
- DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
- if (priv->cfg->base_params->chain_noise_calib_by_driver)
- DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
- DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR);
- DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR);
- DEBUGFS_ADD_FILE(wd_timeout, dir_debug, S_IWUSR);
- if (priv->cfg->base_params->sensitivity_calib_by_driver)
- DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf,
- &priv->disable_sens_cal);
- if (priv->cfg->base_params->chain_noise_calib_by_driver)
- DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
- &priv->disable_chain_noise_cal);
- DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
- &priv->disable_tx_power_cal);
- return 0;
-
-err:
- IWL_ERR(priv, "Can't create the debugfs directory\n");
- iwl_legacy_dbgfs_unregister(priv);
- return -ENOMEM;
-}
-EXPORT_SYMBOL(iwl_legacy_dbgfs_register);
-
-/**
- * Remove the debugfs files and directories
- *
- */
-void iwl_legacy_dbgfs_unregister(struct iwl_priv *priv)
-{
- if (!priv->debugfs_dir)
- return;
-
- debugfs_remove_recursive(priv->debugfs_dir);
- priv->debugfs_dir = NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_dbgfs_unregister);
diff --git a/drivers/net/wireless/iwlegacy/iwl-dev.h b/drivers/net/wireless/iwlegacy/iwl-dev.h
deleted file mode 100644
index 9c786ed..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-dev.h
+++ /dev/null
@@ -1,1364 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-/*
- * Please use this file (iwl-dev.h) for driver implementation definitions.
- * Please use iwl-commands.h for uCode API definitions.
- * Please use iwl-4965-hw.h for hardware-related definitions.
- */
-
-#ifndef __iwl_legacy_dev_h__
-#define __iwl_legacy_dev_h__
-
-#include <linux/interrupt.h>
-#include <linux/pci.h> /* for struct pci_device_id */
-#include <linux/kernel.h>
-#include <linux/leds.h>
-#include <linux/wait.h>
-#include <net/ieee80211_radiotap.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-csr.h"
-#include "iwl-prph.h"
-#include "iwl-fh.h"
-#include "iwl-debug.h"
-#include "iwl-4965-hw.h"
-#include "iwl-3945-hw.h"
-#include "iwl-led.h"
-#include "iwl-power.h"
-#include "iwl-legacy-rs.h"
-
-struct iwl_tx_queue;
-
-/* CT-KILL constants */
-#define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */
-
-/* Default noise level to report when noise measurement is not available.
- * This may be because we're:
- * 1) Not associated (4965, no beacon statistics being sent to driver)
- * 2) Scanning (noise measurement does not apply to associated channel)
- * 3) Receiving CCK (3945 delivers noise info only for OFDM frames)
- * Use default noise value of -127 ... this is below the range of measurable
- * Rx dBm for either 3945 or 4965, so it can indicate "unmeasurable" to user.
- * Also, -127 works better than 0 when averaging frames with/without
- * noise info (e.g. averaging might be done in app); measured dBm values are
- * always negative ... using a negative value as the default keeps all
- * averages within an s8's (used in some apps) range of negative values. */
-#define IWL_NOISE_MEAS_NOT_AVAILABLE (-127)
-
-/*
- * RTS threshold here is total size [2347] minus 4 FCS bytes
- * Per spec:
- * a value of 0 means RTS on all data/management packets
- * a value > max MSDU size means no RTS
- * else RTS for data/management frames where MPDU is larger
- * than RTS value.
- */
-#define DEFAULT_RTS_THRESHOLD 2347U
-#define MIN_RTS_THRESHOLD 0U
-#define MAX_RTS_THRESHOLD 2347U
-#define MAX_MSDU_SIZE 2304U
-#define MAX_MPDU_SIZE 2346U
-#define DEFAULT_BEACON_INTERVAL 100U
-#define DEFAULT_SHORT_RETRY_LIMIT 7U
-#define DEFAULT_LONG_RETRY_LIMIT 4U
-
-struct iwl_rx_mem_buffer {
- dma_addr_t page_dma;
- struct page *page;
- struct list_head list;
-};
-
-#define rxb_addr(r) page_address(r->page)
-
-/* defined below */
-struct iwl_device_cmd;
-
-struct iwl_cmd_meta {
- /* only for SYNC commands, iff the reply skb is wanted */
- struct iwl_host_cmd *source;
- /*
- * only for ASYNC commands
- * (which is somewhat stupid -- look at iwl-sta.c for instance
- * which duplicates a bunch of code because the callback isn't
- * invoked for SYNC commands, if it were and its result passed
- * through it would be simpler...)
- */
- void (*callback)(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt);
-
- /* The CMD_SIZE_HUGE flag bit indicates that the command
- * structure is stored at the end of the shared queue memory. */
- u32 flags;
-
- DEFINE_DMA_UNMAP_ADDR(mapping);
- DEFINE_DMA_UNMAP_LEN(len);
-};
-
-/*
- * Generic queue structure
- *
- * Contains common data for Rx and Tx queues
- */
-struct iwl_queue {
- int n_bd; /* number of BDs in this queue */
- int write_ptr; /* 1-st empty entry (index) host_w*/
- int read_ptr; /* last used entry (index) host_r*/
- /* use for monitoring and recovering the stuck queue */
- dma_addr_t dma_addr; /* physical addr for BD's */
- int n_window; /* safe queue window */
- u32 id;
- int low_mark; /* low watermark, resume queue if free
- * space more than this */
- int high_mark; /* high watermark, stop queue if free
- * space less than this */
-};
-
-/* One for each TFD */
-struct iwl_tx_info {
- struct sk_buff *skb;
- struct iwl_rxon_context *ctx;
-};
-
-/**
- * struct iwl_tx_queue - Tx Queue for DMA
- * @q: generic Rx/Tx queue descriptor
- * @bd: base of circular buffer of TFDs
- * @cmd: array of command/TX buffer pointers
- * @meta: array of meta data for each command/tx buffer
- * @dma_addr_cmd: physical address of cmd/tx buffer array
- * @txb: array of per-TFD driver data
- * @time_stamp: time (in jiffies) of last read_ptr change
- * @need_update: indicates need to update read/write index
- * @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
- *
- * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
- * descriptors) and required locking structures.
- */
-#define TFD_TX_CMD_SLOTS 256
-#define TFD_CMD_SLOTS 32
-
-struct iwl_tx_queue {
- struct iwl_queue q;
- void *tfds;
- struct iwl_device_cmd **cmd;
- struct iwl_cmd_meta *meta;
- struct iwl_tx_info *txb;
- unsigned long time_stamp;
- u8 need_update;
- u8 sched_retry;
- u8 active;
- u8 swq_id;
-};
-
-#define IWL_NUM_SCAN_RATES (2)
-
-struct iwl4965_channel_tgd_info {
- u8 type;
- s8 max_power;
-};
-
-struct iwl4965_channel_tgh_info {
- s64 last_radar_time;
-};
-
-#define IWL4965_MAX_RATE (33)
-
-struct iwl3945_clip_group {
- /* maximum power level to prevent clipping for each rate, derived by
- * us from this band's saturation power in EEPROM */
- const s8 clip_powers[IWL_MAX_RATES];
-};
-
-/* current Tx power values to use, one for each rate for each channel.
- * requested power is limited by:
- * -- regulatory EEPROM limits for this channel
- * -- hardware capabilities (clip-powers)
- * -- spectrum management
- * -- user preference (e.g. iwconfig)
- * when requested power is set, base power index must also be set. */
-struct iwl3945_channel_power_info {
- struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
- s8 power_table_index; /* actual (compenst'd) index into gain table */
- s8 base_power_index; /* gain index for power at factory temp. */
- s8 requested_power; /* power (dBm) requested for this chnl/rate */
-};
-
-/* current scan Tx power values to use, one for each scan rate for each
- * channel. */
-struct iwl3945_scan_power_info {
- struct iwl3945_tx_power tpc; /* actual radio and DSP gain settings */
- s8 power_table_index; /* actual (compenst'd) index into gain table */
- s8 requested_power; /* scan pwr (dBm) requested for chnl/rate */
-};
-
-/*
- * One for each channel, holds all channel setup data
- * Some of the fields (e.g. eeprom and flags/max_power_avg) are redundant
- * with one another!
- */
-struct iwl_channel_info {
- struct iwl4965_channel_tgd_info tgd;
- struct iwl4965_channel_tgh_info tgh;
- struct iwl_eeprom_channel eeprom; /* EEPROM regulatory limit */
- struct iwl_eeprom_channel ht40_eeprom; /* EEPROM regulatory limit for
- * HT40 channel */
-
- u8 channel; /* channel number */
- u8 flags; /* flags copied from EEPROM */
- s8 max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
- s8 curr_txpow; /* (dBm) regulatory/spectrum/user (not h/w) limit */
- s8 min_power; /* always 0 */
- s8 scan_power; /* (dBm) regul. eeprom, direct scans, any rate */
-
- u8 group_index; /* 0-4, maps channel to group1/2/3/4/5 */
- u8 band_index; /* 0-4, maps channel to band1/2/3/4/5 */
- enum ieee80211_band band;
-
- /* HT40 channel info */
- s8 ht40_max_power_avg; /* (dBm) regul. eeprom, normal Tx, any rate */
- u8 ht40_flags; /* flags copied from EEPROM */
- u8 ht40_extension_channel; /* HT_IE_EXT_CHANNEL_* */
-
- /* Radio/DSP gain settings for each "normal" data Tx rate.
- * These include, in addition to RF and DSP gain, a few fields for
- * remembering/modifying gain settings (indexes). */
- struct iwl3945_channel_power_info power_info[IWL4965_MAX_RATE];
-
- /* Radio/DSP gain settings for each scan rate, for directed scans. */
- struct iwl3945_scan_power_info scan_pwr_info[IWL_NUM_SCAN_RATES];
-};
-
-#define IWL_TX_FIFO_BK 0 /* shared */
-#define IWL_TX_FIFO_BE 1
-#define IWL_TX_FIFO_VI 2 /* shared */
-#define IWL_TX_FIFO_VO 3
-#define IWL_TX_FIFO_UNUSED -1
-
-/* Minimum number of queues. MAX_NUM is defined in hw specific files.
- * Set the minimum to accommodate the 4 standard TX queues, 1 command
- * queue, 2 (unused) HCCA queues, and 4 HT queues (one for each AC) */
-#define IWL_MIN_NUM_QUEUES 10
-
-#define IWL_DEFAULT_CMD_QUEUE_NUM 4
-
-#define IEEE80211_DATA_LEN 2304
-#define IEEE80211_4ADDR_LEN 30
-#define IEEE80211_HLEN (IEEE80211_4ADDR_LEN)
-#define IEEE80211_FRAME_LEN (IEEE80211_DATA_LEN + IEEE80211_HLEN)
-
-struct iwl_frame {
- union {
- struct ieee80211_hdr frame;
- struct iwl_tx_beacon_cmd beacon;
- u8 raw[IEEE80211_FRAME_LEN];
- u8 cmd[360];
- } u;
- struct list_head list;
-};
-
-#define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4)
-#define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ)
-#define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4)
-
-enum {
- CMD_SYNC = 0,
- CMD_SIZE_NORMAL = 0,
- CMD_NO_SKB = 0,
- CMD_SIZE_HUGE = (1 << 0),
- CMD_ASYNC = (1 << 1),
- CMD_WANT_SKB = (1 << 2),
- CMD_MAPPED = (1 << 3),
-};
-
-#define DEF_CMD_PAYLOAD_SIZE 320
-
-/**
- * struct iwl_device_cmd
- *
- * For allocation of the command and tx queues, this establishes the overall
- * size of the largest command we send to uCode, except for a scan command
- * (which is relatively huge; space is allocated separately).
- */
-struct iwl_device_cmd {
- struct iwl_cmd_header hdr; /* uCode API */
- union {
- u32 flags;
- u8 val8;
- u16 val16;
- u32 val32;
- struct iwl_tx_cmd tx;
- u8 payload[DEF_CMD_PAYLOAD_SIZE];
- } __packed cmd;
-} __packed;
-
-#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))
-
-
-struct iwl_host_cmd {
- const void *data;
- unsigned long reply_page;
- void (*callback)(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt);
- u32 flags;
- u16 len;
- u8 id;
-};
-
-#define SUP_RATE_11A_MAX_NUM_CHANNELS 8
-#define SUP_RATE_11B_MAX_NUM_CHANNELS 4
-#define SUP_RATE_11G_MAX_NUM_CHANNELS 12
-
-/**
- * struct iwl_rx_queue - Rx queue
- * @bd: driver's pointer to buffer of receive buffer descriptors (rbd)
- * @bd_dma: bus address of buffer of receive buffer descriptors (rbd)
- * @read: Shared index to newest available Rx buffer
- * @write: Shared index to oldest written Rx packet
- * @free_count: Number of pre-allocated buffers in rx_free
- * @rx_free: list of free SKBs for use
- * @rx_used: List of Rx buffers with no SKB
- * @need_update: flag to indicate we need to update read/write index
- * @rb_stts: driver's pointer to receive buffer status
- * @rb_stts_dma: bus address of receive buffer status
- *
- * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers
- */
-struct iwl_rx_queue {
- __le32 *bd;
- dma_addr_t bd_dma;
- struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS];
- struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE];
- u32 read;
- u32 write;
- u32 free_count;
- u32 write_actual;
- struct list_head rx_free;
- struct list_head rx_used;
- int need_update;
- struct iwl_rb_status *rb_stts;
- dma_addr_t rb_stts_dma;
- spinlock_t lock;
-};
-
-#define IWL_SUPPORTED_RATES_IE_LEN 8
-
-#define MAX_TID_COUNT 9
-
-#define IWL_INVALID_RATE 0xFF
-#define IWL_INVALID_VALUE -1
-
-/**
- * struct iwl_ht_agg -- aggregation status while waiting for block-ack
- * @txq_id: Tx queue used for Tx attempt
- * @frame_count: # frames attempted by Tx command
- * @wait_for_ba: Expect block-ack before next Tx reply
- * @start_idx: Index of 1st Transmit Frame Descriptor (TFD) in Tx window
- * @bitmap0: Low order bitmap, one bit for each frame pending ACK in Tx window
- * @bitmap1: High order, one bit for each frame pending ACK in Tx window
- * @rate_n_flags: Rate at which Tx was attempted
- *
- * If REPLY_TX indicates that aggregation was attempted, driver must wait
- * for block ack (REPLY_COMPRESSED_BA). This struct stores tx reply info
- * until block ack arrives.
- */
-struct iwl_ht_agg {
- u16 txq_id;
- u16 frame_count;
- u16 wait_for_ba;
- u16 start_idx;
- u64 bitmap;
- u32 rate_n_flags;
-#define IWL_AGG_OFF 0
-#define IWL_AGG_ON 1
-#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
-#define IWL_EMPTYING_HW_QUEUE_DELBA 3
- u8 state;
-};
-
-
-struct iwl_tid_data {
- u16 seq_number; /* 4965 only */
- u16 tfds_in_queue;
- struct iwl_ht_agg agg;
-};
-
-struct iwl_hw_key {
- u32 cipher;
- int keylen;
- u8 keyidx;
- u8 key[32];
-};
-
-union iwl_ht_rate_supp {
- u16 rates;
- struct {
- u8 siso_rate;
- u8 mimo_rate;
- };
-};
-
-#define CFG_HT_RX_AMPDU_FACTOR_8K (0x0)
-#define CFG_HT_RX_AMPDU_FACTOR_16K (0x1)
-#define CFG_HT_RX_AMPDU_FACTOR_32K (0x2)
-#define CFG_HT_RX_AMPDU_FACTOR_64K (0x3)
-#define CFG_HT_RX_AMPDU_FACTOR_DEF CFG_HT_RX_AMPDU_FACTOR_64K
-#define CFG_HT_RX_AMPDU_FACTOR_MAX CFG_HT_RX_AMPDU_FACTOR_64K
-#define CFG_HT_RX_AMPDU_FACTOR_MIN CFG_HT_RX_AMPDU_FACTOR_8K
-
-/*
- * Maximal MPDU density for TX aggregation
- * 4 - 2us density
- * 5 - 4us density
- * 6 - 8us density
- * 7 - 16us density
- */
-#define CFG_HT_MPDU_DENSITY_2USEC (0x4)
-#define CFG_HT_MPDU_DENSITY_4USEC (0x5)
-#define CFG_HT_MPDU_DENSITY_8USEC (0x6)
-#define CFG_HT_MPDU_DENSITY_16USEC (0x7)
-#define CFG_HT_MPDU_DENSITY_DEF CFG_HT_MPDU_DENSITY_4USEC
-#define CFG_HT_MPDU_DENSITY_MAX CFG_HT_MPDU_DENSITY_16USEC
-#define CFG_HT_MPDU_DENSITY_MIN (0x1)
-
-struct iwl_ht_config {
- bool single_chain_sufficient;
- enum ieee80211_smps_mode smps; /* current smps mode */
-};
-
-/* QoS structures */
-struct iwl_qos_info {
- int qos_active;
- struct iwl_qosparam_cmd def_qos_parm;
-};
-
-/*
- * Structure should be accessed with sta_lock held. When station addition
- * is in progress (IWL_STA_UCODE_INPROGRESS) it is possible to access only
- * the commands (iwl_legacy_addsta_cmd and iwl_link_quality_cmd) without
- * sta_lock held.
- */
-struct iwl_station_entry {
- struct iwl_legacy_addsta_cmd sta;
- struct iwl_tid_data tid[MAX_TID_COUNT];
- u8 used, ctxid;
- struct iwl_hw_key keyinfo;
- struct iwl_link_quality_cmd *lq;
-};
-
-struct iwl_station_priv_common {
- struct iwl_rxon_context *ctx;
- u8 sta_id;
-};
-
-/*
- * iwl_station_priv: Driver's private station information
- *
- * When mac80211 creates a station it reserves some space (hw->sta_data_size)
- * in the structure for use by driver. This structure is places in that
- * space.
- *
- * The common struct MUST be first because it is shared between
- * 3945 and 4965!
- */
-struct iwl_station_priv {
- struct iwl_station_priv_common common;
- struct iwl_lq_sta lq_sta;
- atomic_t pending_frames;
- bool client;
- bool asleep;
-};
-
-/**
- * struct iwl_vif_priv - driver's private per-interface information
- *
- * When mac80211 allocates a virtual interface, it can allocate
- * space for us to put data into.
- */
-struct iwl_vif_priv {
- struct iwl_rxon_context *ctx;
- u8 ibss_bssid_sta_id;
-};
-
-/* one for each uCode image (inst/data, boot/init/runtime) */
-struct fw_desc {
- void *v_addr; /* access by driver */
- dma_addr_t p_addr; /* access by card's busmaster DMA */
- u32 len; /* bytes */
-};
-
-/* uCode file layout */
-struct iwl_ucode_header {
- __le32 ver; /* major/minor/API/serial */
- struct {
- __le32 inst_size; /* bytes of runtime code */
- __le32 data_size; /* bytes of runtime data */
- __le32 init_size; /* bytes of init code */
- __le32 init_data_size; /* bytes of init data */
- __le32 boot_size; /* bytes of bootstrap code */
- u8 data[0]; /* in same order as sizes */
- } v1;
-};
-
-struct iwl4965_ibss_seq {
- u8 mac[ETH_ALEN];
- u16 seq_num;
- u16 frag_num;
- unsigned long packet_time;
- struct list_head list;
-};
-
-struct iwl_sensitivity_ranges {
- u16 min_nrg_cck;
- u16 max_nrg_cck;
-
- u16 nrg_th_cck;
- u16 nrg_th_ofdm;
-
- u16 auto_corr_min_ofdm;
- u16 auto_corr_min_ofdm_mrc;
- u16 auto_corr_min_ofdm_x1;
- u16 auto_corr_min_ofdm_mrc_x1;
-
- u16 auto_corr_max_ofdm;
- u16 auto_corr_max_ofdm_mrc;
- u16 auto_corr_max_ofdm_x1;
- u16 auto_corr_max_ofdm_mrc_x1;
-
- u16 auto_corr_max_cck;
- u16 auto_corr_max_cck_mrc;
- u16 auto_corr_min_cck;
- u16 auto_corr_min_cck_mrc;
-
- u16 barker_corr_th_min;
- u16 barker_corr_th_min_mrc;
- u16 nrg_th_cca;
-};
-
-
-#define KELVIN_TO_CELSIUS(x) ((x)-273)
-#define CELSIUS_TO_KELVIN(x) ((x)+273)
-
-
-/**
- * struct iwl_hw_params
- * @max_txq_num: Max # Tx queues supported
- * @dma_chnl_num: Number of Tx DMA/FIFO channels
- * @scd_bc_tbls_size: size of scheduler byte count tables
- * @tfd_size: TFD size
- * @tx/rx_chains_num: Number of TX/RX chains
- * @valid_tx/rx_ant: usable antennas
- * @max_rxq_size: Max # Rx frames in Rx queue (must be power-of-2)
- * @max_rxq_log: Log-base-2 of max_rxq_size
- * @rx_page_order: Rx buffer page order
- * @rx_wrt_ptr_reg: FH{39}_RSCSR_CHNL0_WPTR
- * @max_stations:
- * @ht40_channel: is 40MHz width possible in band 2.4
- * BIT(IEEE80211_BAND_5GHZ) BIT(IEEE80211_BAND_5GHZ)
- * @sw_crypto: 0 for hw, 1 for sw
- * @max_xxx_size: for ucode uses
- * @ct_kill_threshold: temperature threshold
- * @beacon_time_tsf_bits: number of valid tsf bits for beacon time
- * @struct iwl_sensitivity_ranges: range of sensitivity values
- */
-struct iwl_hw_params {
- u8 max_txq_num;
- u8 dma_chnl_num;
- u16 scd_bc_tbls_size;
- u32 tfd_size;
- u8 tx_chains_num;
- u8 rx_chains_num;
- u8 valid_tx_ant;
- u8 valid_rx_ant;
- u16 max_rxq_size;
- u16 max_rxq_log;
- u32 rx_page_order;
- u32 rx_wrt_ptr_reg;
- u8 max_stations;
- u8 ht40_channel;
- u8 max_beacon_itrvl; /* in 1024 ms */
- u32 max_inst_size;
- u32 max_data_size;
- u32 max_bsm_size;
- u32 ct_kill_threshold; /* value in hw-dependent units */
- u16 beacon_time_tsf_bits;
- const struct iwl_sensitivity_ranges *sens;
-};
-
-
-/******************************************************************************
- *
- * Functions implemented in core module which are forward declared here
- * for use by iwl-[4-5].c
- *
- * NOTE: The implementation of these functions are not hardware specific
- * which is why they are in the core module files.
- *
- * Naming convention --
- * iwl_ <-- Is part of iwlwifi
- * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
- * iwl4965_bg_ <-- Called from work queue context
- * iwl4965_mac_ <-- mac80211 callback
- *
- ****************************************************************************/
-extern void iwl4965_update_chain_flags(struct iwl_priv *priv);
-extern const u8 iwlegacy_bcast_addr[ETH_ALEN];
-extern int iwl_legacy_queue_space(const struct iwl_queue *q);
-static inline int iwl_legacy_queue_used(const struct iwl_queue *q, int i)
-{
- return q->write_ptr >= q->read_ptr ?
- (i >= q->read_ptr && i < q->write_ptr) :
- !(i < q->read_ptr && i >= q->write_ptr);
-}
-
-
-static inline u8 iwl_legacy_get_cmd_index(struct iwl_queue *q, u32 index,
- int is_huge)
-{
- /*
- * This is for init calibration result and scan command which
- * required buffer > TFD_MAX_PAYLOAD_SIZE,
- * the big buffer at end of command array
- */
- if (is_huge)
- return q->n_window; /* must be power of 2 */
-
- /* Otherwise, use normal size buffers */
- return index & (q->n_window - 1);
-}
-
-
-struct iwl_dma_ptr {
- dma_addr_t dma;
- void *addr;
- size_t size;
-};
-
-#define IWL_OPERATION_MODE_AUTO 0
-#define IWL_OPERATION_MODE_HT_ONLY 1
-#define IWL_OPERATION_MODE_MIXED 2
-#define IWL_OPERATION_MODE_20MHZ 3
-
-#define IWL_TX_CRC_SIZE 4
-#define IWL_TX_DELIMITER_SIZE 4
-
-#define TX_POWER_IWL_ILLEGAL_VOLTAGE -10000
-
-/* Sensitivity and chain noise calibration */
-#define INITIALIZATION_VALUE 0xFFFF
-#define IWL4965_CAL_NUM_BEACONS 20
-#define IWL_CAL_NUM_BEACONS 16
-#define MAXIMUM_ALLOWED_PATHLOSS 15
-
-#define CHAIN_NOISE_MAX_DELTA_GAIN_CODE 3
-
-#define MAX_FA_OFDM 50
-#define MIN_FA_OFDM 5
-#define MAX_FA_CCK 50
-#define MIN_FA_CCK 5
-
-#define AUTO_CORR_STEP_OFDM 1
-
-#define AUTO_CORR_STEP_CCK 3
-#define AUTO_CORR_MAX_TH_CCK 160
-
-#define NRG_DIFF 2
-#define NRG_STEP_CCK 2
-#define NRG_MARGIN 8
-#define MAX_NUMBER_CCK_NO_FA 100
-
-#define AUTO_CORR_CCK_MIN_VAL_DEF (125)
-
-#define CHAIN_A 0
-#define CHAIN_B 1
-#define CHAIN_C 2
-#define CHAIN_NOISE_DELTA_GAIN_INIT_VAL 4
-#define ALL_BAND_FILTER 0xFF00
-#define IN_BAND_FILTER 0xFF
-#define MIN_AVERAGE_NOISE_MAX_VALUE 0xFFFFFFFF
-
-#define NRG_NUM_PREV_STAT_L 20
-#define NUM_RX_CHAINS 3
-
-enum iwl4965_false_alarm_state {
- IWL_FA_TOO_MANY = 0,
- IWL_FA_TOO_FEW = 1,
- IWL_FA_GOOD_RANGE = 2,
-};
-
-enum iwl4965_chain_noise_state {
- IWL_CHAIN_NOISE_ALIVE = 0, /* must be 0 */
- IWL_CHAIN_NOISE_ACCUMULATE,
- IWL_CHAIN_NOISE_CALIBRATED,
- IWL_CHAIN_NOISE_DONE,
-};
-
-enum iwl4965_calib_enabled_state {
- IWL_CALIB_DISABLED = 0, /* must be 0 */
- IWL_CALIB_ENABLED = 1,
-};
-
-/*
- * enum iwl_calib
- * defines the order in which results of initial calibrations
- * should be sent to the runtime uCode
- */
-enum iwl_calib {
- IWL_CALIB_MAX,
-};
-
-/* Opaque calibration results */
-struct iwl_calib_result {
- void *buf;
- size_t buf_len;
-};
-
-enum ucode_type {
- UCODE_NONE = 0,
- UCODE_INIT,
- UCODE_RT
-};
-
-/* Sensitivity calib data */
-struct iwl_sensitivity_data {
- u32 auto_corr_ofdm;
- u32 auto_corr_ofdm_mrc;
- u32 auto_corr_ofdm_x1;
- u32 auto_corr_ofdm_mrc_x1;
- u32 auto_corr_cck;
- u32 auto_corr_cck_mrc;
-
- u32 last_bad_plcp_cnt_ofdm;
- u32 last_fa_cnt_ofdm;
- u32 last_bad_plcp_cnt_cck;
- u32 last_fa_cnt_cck;
-
- u32 nrg_curr_state;
- u32 nrg_prev_state;
- u32 nrg_value[10];
- u8 nrg_silence_rssi[NRG_NUM_PREV_STAT_L];
- u32 nrg_silence_ref;
- u32 nrg_energy_idx;
- u32 nrg_silence_idx;
- u32 nrg_th_cck;
- s32 nrg_auto_corr_silence_diff;
- u32 num_in_cck_no_fa;
- u32 nrg_th_ofdm;
-
- u16 barker_corr_th_min;
- u16 barker_corr_th_min_mrc;
- u16 nrg_th_cca;
-};
-
-/* Chain noise (differential Rx gain) calib data */
-struct iwl_chain_noise_data {
- u32 active_chains;
- u32 chain_noise_a;
- u32 chain_noise_b;
- u32 chain_noise_c;
- u32 chain_signal_a;
- u32 chain_signal_b;
- u32 chain_signal_c;
- u16 beacon_count;
- u8 disconn_array[NUM_RX_CHAINS];
- u8 delta_gain_code[NUM_RX_CHAINS];
- u8 radio_write;
- u8 state;
-};
-
-#define EEPROM_SEM_TIMEOUT 10 /* milliseconds */
-#define EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
-
-#define IWL_TRAFFIC_ENTRIES (256)
-#define IWL_TRAFFIC_ENTRY_SIZE (64)
-
-enum {
- MEASUREMENT_READY = (1 << 0),
- MEASUREMENT_ACTIVE = (1 << 1),
-};
-
-/* interrupt statistics */
-struct isr_statistics {
- u32 hw;
- u32 sw;
- u32 err_code;
- u32 sch;
- u32 alive;
- u32 rfkill;
- u32 ctkill;
- u32 wakeup;
- u32 rx;
- u32 rx_handlers[REPLY_MAX];
- u32 tx;
- u32 unhandled;
-};
-
-/* management statistics */
-enum iwl_mgmt_stats {
- MANAGEMENT_ASSOC_REQ = 0,
- MANAGEMENT_ASSOC_RESP,
- MANAGEMENT_REASSOC_REQ,
- MANAGEMENT_REASSOC_RESP,
- MANAGEMENT_PROBE_REQ,
- MANAGEMENT_PROBE_RESP,
- MANAGEMENT_BEACON,
- MANAGEMENT_ATIM,
- MANAGEMENT_DISASSOC,
- MANAGEMENT_AUTH,
- MANAGEMENT_DEAUTH,
- MANAGEMENT_ACTION,
- MANAGEMENT_MAX,
-};
-/* control statistics */
-enum iwl_ctrl_stats {
- CONTROL_BACK_REQ = 0,
- CONTROL_BACK,
- CONTROL_PSPOLL,
- CONTROL_RTS,
- CONTROL_CTS,
- CONTROL_ACK,
- CONTROL_CFEND,
- CONTROL_CFENDACK,
- CONTROL_MAX,
-};
-
-struct traffic_stats {
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- u32 mgmt[MANAGEMENT_MAX];
- u32 ctrl[CONTROL_MAX];
- u32 data_cnt;
- u64 data_bytes;
-#endif
-};
-
-/*
- * host interrupt timeout value
- * used with setting interrupt coalescing timer
- * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit
- *
- * default interrupt coalescing timer is 64 x 32 = 2048 usecs
- * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs
- */
-#define IWL_HOST_INT_TIMEOUT_MAX (0xFF)
-#define IWL_HOST_INT_TIMEOUT_DEF (0x40)
-#define IWL_HOST_INT_TIMEOUT_MIN (0x0)
-#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF)
-#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10)
-#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0)
-
-#define IWL_DELAY_NEXT_FORCE_FW_RELOAD (HZ*5)
-
-/* TX queue watchdog timeouts in mSecs */
-#define IWL_DEF_WD_TIMEOUT (2000)
-#define IWL_LONG_WD_TIMEOUT (10000)
-#define IWL_MAX_WD_TIMEOUT (120000)
-
-struct iwl_force_reset {
- int reset_request_count;
- int reset_success_count;
- int reset_reject_count;
- unsigned long reset_duration;
- unsigned long last_force_reset_jiffies;
-};
-
-/* extend beacon time format bit shifting */
-/*
- * for _3945 devices
- * bits 31:24 - extended
- * bits 23:0 - interval
- */
-#define IWL3945_EXT_BEACON_TIME_POS 24
-/*
- * for _4965 devices
- * bits 31:22 - extended
- * bits 21:0 - interval
- */
-#define IWL4965_EXT_BEACON_TIME_POS 22
-
-enum iwl_rxon_context_id {
- IWL_RXON_CTX_BSS,
-
- NUM_IWL_RXON_CTX
-};
-
-struct iwl_rxon_context {
- struct ieee80211_vif *vif;
-
- const u8 *ac_to_fifo;
- const u8 *ac_to_queue;
- u8 mcast_queue;
-
- /*
- * We could use the vif to indicate active, but we
- * also need it to be active during disabling when
- * we already removed the vif for type setting.
- */
- bool always_active, is_active;
-
- bool ht_need_multiple_chains;
-
- enum iwl_rxon_context_id ctxid;
-
- u32 interface_modes, exclusive_interface_modes;
- u8 unused_devtype, ap_devtype, ibss_devtype, station_devtype;
-
- /*
- * We declare this const so it can only be
- * changed via explicit cast within the
- * routines that actually update the physical
- * hardware.
- */
- const struct iwl_legacy_rxon_cmd active;
- struct iwl_legacy_rxon_cmd staging;
-
- struct iwl_rxon_time_cmd timing;
-
- struct iwl_qos_info qos_data;
-
- u8 bcast_sta_id, ap_sta_id;
-
- u8 rxon_cmd, rxon_assoc_cmd, rxon_timing_cmd;
- u8 qos_cmd;
- u8 wep_key_cmd;
-
- struct iwl_wep_key wep_keys[WEP_KEYS_MAX];
- u8 key_mapping_keys;
-
- __le32 station_flags;
-
- struct {
- bool non_gf_sta_present;
- u8 protection;
- bool enabled, is_40mhz;
- u8 extension_chan_offset;
- } ht;
-};
-
-struct iwl_priv {
-
- /* ieee device used by generic ieee processing code */
- struct ieee80211_hw *hw;
- struct ieee80211_channel *ieee_channels;
- struct ieee80211_rate *ieee_rates;
- struct iwl_cfg *cfg;
-
- /* temporary frame storage list */
- struct list_head free_frames;
- int frames_count;
-
- enum ieee80211_band band;
- int alloc_rxb_page;
-
- void (*rx_handlers[REPLY_MAX])(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb);
-
- struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
-
- /* spectrum measurement report caching */
- struct iwl_spectrum_notification measure_report;
- u8 measurement_status;
-
- /* ucode beacon time */
- u32 ucode_beacon_time;
- int missed_beacon_threshold;
-
- /* track IBSS manager (last beacon) status */
- u32 ibss_manager;
-
- /* force reset */
- struct iwl_force_reset force_reset;
-
- /* we allocate array of iwl_channel_info for NIC's valid channels.
- * Access via channel # using indirect index array */
- struct iwl_channel_info *channel_info; /* channel info array */
- u8 channel_count; /* # of channels */
-
- /* thermal calibration */
- s32 temperature; /* degrees Kelvin */
- s32 last_temperature;
-
- /* init calibration results */
- struct iwl_calib_result calib_results[IWL_CALIB_MAX];
-
- /* Scan related variables */
- unsigned long scan_start;
- unsigned long scan_start_tsf;
- void *scan_cmd;
- enum ieee80211_band scan_band;
- struct cfg80211_scan_request *scan_request;
- struct ieee80211_vif *scan_vif;
- u8 scan_tx_ant[IEEE80211_NUM_BANDS];
- u8 mgmt_tx_ant;
-
- /* spinlock */
- spinlock_t lock; /* protect general shared data */
- spinlock_t hcmd_lock; /* protect hcmd */
- spinlock_t reg_lock; /* protect hw register access */
- struct mutex mutex;
-
- /* basic pci-network driver stuff */
- struct pci_dev *pci_dev;
-
- /* pci hardware address support */
- void __iomem *hw_base;
- u32 hw_rev;
- u32 hw_wa_rev;
- u8 rev_id;
-
- /* microcode/device supports multiple contexts */
- u8 valid_contexts;
-
- /* command queue number */
- u8 cmd_queue;
-
- /* max number of station keys */
- u8 sta_key_max_num;
-
- /* EEPROM MAC addresses */
- struct mac_address addresses[1];
-
- /* uCode images, save to reload in case of failure */
- int fw_index; /* firmware we're trying to load */
- u32 ucode_ver; /* version of ucode, copy of
- iwl_ucode.ver */
- struct fw_desc ucode_code; /* runtime inst */
- struct fw_desc ucode_data; /* runtime data original */
- struct fw_desc ucode_data_backup; /* runtime data save/restore */
- struct fw_desc ucode_init; /* initialization inst */
- struct fw_desc ucode_init_data; /* initialization data */
- struct fw_desc ucode_boot; /* bootstrap inst */
- enum ucode_type ucode_type;
- u8 ucode_write_complete; /* the image write is complete */
- char firmware_name[25];
-
- struct iwl_rxon_context contexts[NUM_IWL_RXON_CTX];
-
- __le16 switch_channel;
-
- /* 1st responses from initialize and runtime uCode images.
- * _4965's initialize alive response contains some calibration data. */
- struct iwl_init_alive_resp card_alive_init;
- struct iwl_alive_resp card_alive;
-
- u16 active_rate;
-
- u8 start_calib;
- struct iwl_sensitivity_data sensitivity_data;
- struct iwl_chain_noise_data chain_noise_data;
- __le16 sensitivity_tbl[HD_TABLE_SIZE];
-
- struct iwl_ht_config current_ht_config;
-
- /* Rate scaling data */
- u8 retry_rate;
-
- wait_queue_head_t wait_command_queue;
-
- int activity_timer_active;
-
- /* Rx and Tx DMA processing queues */
- struct iwl_rx_queue rxq;
- struct iwl_tx_queue *txq;
- unsigned long txq_ctx_active_msk;
- struct iwl_dma_ptr kw; /* keep warm address */
- struct iwl_dma_ptr scd_bc_tbls;
-
- u32 scd_base_addr; /* scheduler sram base address */
-
- unsigned long status;
-
- /* counts mgmt, ctl, and data packets */
- struct traffic_stats tx_stats;
- struct traffic_stats rx_stats;
-
- /* counts interrupts */
- struct isr_statistics isr_stats;
-
- struct iwl_power_mgr power_data;
-
- /* context information */
- u8 bssid[ETH_ALEN]; /* used only on 3945 but filled by core */
-
- /* station table variables */
-
- /* Note: if lock and sta_lock are needed, lock must be acquired first */
- spinlock_t sta_lock;
- int num_stations;
- struct iwl_station_entry stations[IWL_STATION_COUNT];
- unsigned long ucode_key_table;
-
- /* queue refcounts */
-#define IWL_MAX_HW_QUEUES 32
- unsigned long queue_stopped[BITS_TO_LONGS(IWL_MAX_HW_QUEUES)];
- /* for each AC */
- atomic_t queue_stop_count[4];
-
- /* Indication if ieee80211_ops->open has been called */
- u8 is_open;
-
- u8 mac80211_registered;
-
- /* eeprom -- this is in the card's little endian byte order */
- u8 *eeprom;
- struct iwl_eeprom_calib_info *calib_info;
-
- enum nl80211_iftype iw_mode;
-
- /* Last Rx'd beacon timestamp */
- u64 timestamp;
-
- union {
-#if defined(CONFIG_IWL3945) || defined(CONFIG_IWL3945_MODULE)
- struct {
- void *shared_virt;
- dma_addr_t shared_phys;
-
- struct delayed_work thermal_periodic;
- struct delayed_work rfkill_poll;
-
- struct iwl3945_notif_statistics statistics;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- struct iwl3945_notif_statistics accum_statistics;
- struct iwl3945_notif_statistics delta_statistics;
- struct iwl3945_notif_statistics max_delta;
-#endif
-
- u32 sta_supp_rates;
- int last_rx_rssi; /* From Rx packet statistics */
-
- /* Rx'd packet timing information */
- u32 last_beacon_time;
- u64 last_tsf;
-
- /*
- * each calibration channel group in the
- * EEPROM has a derived clip setting for
- * each rate.
- */
- const struct iwl3945_clip_group clip_groups[5];
-
- } _3945;
-#endif
-#if defined(CONFIG_IWL4965) || defined(CONFIG_IWL4965_MODULE)
- struct {
- struct iwl_rx_phy_res last_phy_res;
- bool last_phy_res_valid;
-
- struct completion firmware_loading_complete;
-
- /*
- * chain noise reset and gain commands are the
- * two extra calibration commands follows the standard
- * phy calibration commands
- */
- u8 phy_calib_chain_noise_reset_cmd;
- u8 phy_calib_chain_noise_gain_cmd;
-
- struct iwl_notif_statistics statistics;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- struct iwl_notif_statistics accum_statistics;
- struct iwl_notif_statistics delta_statistics;
- struct iwl_notif_statistics max_delta;
-#endif
-
- } _4965;
-#endif
- };
-
- struct iwl_hw_params hw_params;
-
- u32 inta_mask;
-
- struct workqueue_struct *workqueue;
-
- struct work_struct restart;
- struct work_struct scan_completed;
- struct work_struct rx_replenish;
- struct work_struct abort_scan;
-
- struct iwl_rxon_context *beacon_ctx;
- struct sk_buff *beacon_skb;
-
- struct work_struct tx_flush;
-
- struct tasklet_struct irq_tasklet;
-
- struct delayed_work init_alive_start;
- struct delayed_work alive_start;
- struct delayed_work scan_check;
-
- /* TX Power */
- s8 tx_power_user_lmt;
- s8 tx_power_device_lmt;
- s8 tx_power_next;
-
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- /* debugging info */
- u32 debug_level; /* per device debugging will override global
- iwlegacy_debug_level if set */
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUGFS
- /* debugfs */
- u16 tx_traffic_idx;
- u16 rx_traffic_idx;
- u8 *tx_traffic;
- u8 *rx_traffic;
- struct dentry *debugfs_dir;
- u32 dbgfs_sram_offset, dbgfs_sram_len;
- bool disable_ht40;
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUGFS */
-
- struct work_struct txpower_work;
- u32 disable_sens_cal;
- u32 disable_chain_noise_cal;
- u32 disable_tx_power_cal;
- struct work_struct run_time_calib_work;
- struct timer_list statistics_periodic;
- struct timer_list watchdog;
- bool hw_ready;
-
- struct led_classdev led;
- unsigned long blink_on, blink_off;
- bool led_registered;
-}; /*iwl_priv */
-
-static inline void iwl_txq_ctx_activate(struct iwl_priv *priv, int txq_id)
-{
- set_bit(txq_id, &priv->txq_ctx_active_msk);
-}
-
-static inline void iwl_txq_ctx_deactivate(struct iwl_priv *priv, int txq_id)
-{
- clear_bit(txq_id, &priv->txq_ctx_active_msk);
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-/*
- * iwl_legacy_get_debug_level: Return active debug level for device
- *
- * Using sysfs it is possible to set per device debug level. This debug
- * level will be used if set, otherwise the global debug level which can be
- * set via module parameter is used.
- */
-static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv)
-{
- if (priv->debug_level)
- return priv->debug_level;
- else
- return iwlegacy_debug_level;
-}
-#else
-static inline u32 iwl_legacy_get_debug_level(struct iwl_priv *priv)
-{
- return iwlegacy_debug_level;
-}
-#endif
-
-
-static inline struct ieee80211_hdr *
-iwl_legacy_tx_queue_get_hdr(struct iwl_priv *priv,
- int txq_id, int idx)
-{
- if (priv->txq[txq_id].txb[idx].skb)
- return (struct ieee80211_hdr *)priv->txq[txq_id].
- txb[idx].skb->data;
- return NULL;
-}
-
-static inline struct iwl_rxon_context *
-iwl_legacy_rxon_ctx_from_vif(struct ieee80211_vif *vif)
-{
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
-
- return vif_priv->ctx;
-}
-
-#define for_each_context(priv, ctx) \
- for (ctx = &priv->contexts[IWL_RXON_CTX_BSS]; \
- ctx < &priv->contexts[NUM_IWL_RXON_CTX]; ctx++) \
- if (priv->valid_contexts & BIT(ctx->ctxid))
-
-static inline int iwl_legacy_is_associated(struct iwl_priv *priv,
- enum iwl_rxon_context_id ctxid)
-{
- return (priv->contexts[ctxid].active.filter_flags &
- RXON_FILTER_ASSOC_MSK) ? 1 : 0;
-}
-
-static inline int iwl_legacy_is_any_associated(struct iwl_priv *priv)
-{
- return iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS);
-}
-
-static inline int iwl_legacy_is_associated_ctx(struct iwl_rxon_context *ctx)
-{
- return (ctx->active.filter_flags & RXON_FILTER_ASSOC_MSK) ? 1 : 0;
-}
-
-static inline int iwl_legacy_is_channel_valid(const struct iwl_channel_info *ch_info)
-{
- if (ch_info == NULL)
- return 0;
- return (ch_info->flags & EEPROM_CHANNEL_VALID) ? 1 : 0;
-}
-
-static inline int iwl_legacy_is_channel_radar(const struct iwl_channel_info *ch_info)
-{
- return (ch_info->flags & EEPROM_CHANNEL_RADAR) ? 1 : 0;
-}
-
-static inline u8 iwl_legacy_is_channel_a_band(const struct iwl_channel_info *ch_info)
-{
- return ch_info->band == IEEE80211_BAND_5GHZ;
-}
-
-static inline int
-iwl_legacy_is_channel_passive(const struct iwl_channel_info *ch)
-{
- return (!(ch->flags & EEPROM_CHANNEL_ACTIVE)) ? 1 : 0;
-}
-
-static inline int
-iwl_legacy_is_channel_ibss(const struct iwl_channel_info *ch)
-{
- return (ch->flags & EEPROM_CHANNEL_IBSS) ? 1 : 0;
-}
-
-static inline void
-__iwl_legacy_free_pages(struct iwl_priv *priv, struct page *page)
-{
- __free_pages(page, priv->hw_params.rx_page_order);
- priv->alloc_rxb_page--;
-}
-
-static inline void iwl_legacy_free_pages(struct iwl_priv *priv, unsigned long page)
-{
- free_pages(page, priv->hw_params.rx_page_order);
- priv->alloc_rxb_page--;
-}
-#endif /* __iwl_legacy_dev_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-devtrace.c b/drivers/net/wireless/iwlegacy/iwl-devtrace.c
deleted file mode 100644
index acec991..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-devtrace.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/module.h>
-
-/* sparse doesn't like tracepoint macros */
-#ifndef __CHECKER__
-#include "iwl-dev.h"
-
-#define CREATE_TRACE_POINTS
-#include "iwl-devtrace.h"
-
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite8);
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ioread32);
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_iowrite32);
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_rx);
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_tx);
-EXPORT_TRACEPOINT_SYMBOL(iwlwifi_legacy_dev_ucode_error);
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-devtrace.h b/drivers/net/wireless/iwlegacy/iwl-devtrace.h
deleted file mode 100644
index a443725..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-devtrace.h
+++ /dev/null
@@ -1,210 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2009 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#if !defined(__IWLWIFI_LEGACY_DEVICE_TRACE) || defined(TRACE_HEADER_MULTI_READ)
-#define __IWLWIFI_LEGACY_DEVICE_TRACE
-
-#include <linux/tracepoint.h>
-
-#if !defined(CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING) || defined(__CHECKER__)
-#undef TRACE_EVENT
-#define TRACE_EVENT(name, proto, ...) \
-static inline void trace_ ## name(proto) {}
-#endif
-
-
-#define PRIV_ENTRY __field(struct iwl_priv *, priv)
-#define PRIV_ASSIGN (__entry->priv = priv)
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM iwlwifi_legacy_io
-
-TRACE_EVENT(iwlwifi_legacy_dev_ioread32,
- TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val),
- TP_ARGS(priv, offs, val),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __field(u32, offs)
- __field(u32, val)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- __entry->offs = offs;
- __entry->val = val;
- ),
- TP_printk("[%p] read io[%#x] = %#x", __entry->priv,
- __entry->offs, __entry->val)
-);
-
-TRACE_EVENT(iwlwifi_legacy_dev_iowrite8,
- TP_PROTO(struct iwl_priv *priv, u32 offs, u8 val),
- TP_ARGS(priv, offs, val),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __field(u32, offs)
- __field(u8, val)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- __entry->offs = offs;
- __entry->val = val;
- ),
- TP_printk("[%p] write io[%#x] = %#x)", __entry->priv,
- __entry->offs, __entry->val)
-);
-
-TRACE_EVENT(iwlwifi_legacy_dev_iowrite32,
- TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val),
- TP_ARGS(priv, offs, val),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __field(u32, offs)
- __field(u32, val)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- __entry->offs = offs;
- __entry->val = val;
- ),
- TP_printk("[%p] write io[%#x] = %#x)", __entry->priv,
- __entry->offs, __entry->val)
-);
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM iwlwifi_legacy_ucode
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM iwlwifi
-
-TRACE_EVENT(iwlwifi_legacy_dev_hcmd,
- TP_PROTO(struct iwl_priv *priv, void *hcmd, size_t len, u32 flags),
- TP_ARGS(priv, hcmd, len, flags),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __dynamic_array(u8, hcmd, len)
- __field(u32, flags)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- memcpy(__get_dynamic_array(hcmd), hcmd, len);
- __entry->flags = flags;
- ),
- TP_printk("[%p] hcmd %#.2x (%ssync)",
- __entry->priv, ((u8 *)__get_dynamic_array(hcmd))[0],
- __entry->flags & CMD_ASYNC ? "a" : "")
-);
-
-TRACE_EVENT(iwlwifi_legacy_dev_rx,
- TP_PROTO(struct iwl_priv *priv, void *rxbuf, size_t len),
- TP_ARGS(priv, rxbuf, len),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __dynamic_array(u8, rxbuf, len)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- memcpy(__get_dynamic_array(rxbuf), rxbuf, len);
- ),
- TP_printk("[%p] RX cmd %#.2x",
- __entry->priv, ((u8 *)__get_dynamic_array(rxbuf))[4])
-);
-
-TRACE_EVENT(iwlwifi_legacy_dev_tx,
- TP_PROTO(struct iwl_priv *priv, void *tfd, size_t tfdlen,
- void *buf0, size_t buf0_len,
- void *buf1, size_t buf1_len),
- TP_ARGS(priv, tfd, tfdlen, buf0, buf0_len, buf1, buf1_len),
- TP_STRUCT__entry(
- PRIV_ENTRY
-
- __field(size_t, framelen)
- __dynamic_array(u8, tfd, tfdlen)
-
- /*
- * Do not insert between or below these items,
- * we want to keep the frame together (except
- * for the possible padding).
- */
- __dynamic_array(u8, buf0, buf0_len)
- __dynamic_array(u8, buf1, buf1_len)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- __entry->framelen = buf0_len + buf1_len;
- memcpy(__get_dynamic_array(tfd), tfd, tfdlen);
- memcpy(__get_dynamic_array(buf0), buf0, buf0_len);
- memcpy(__get_dynamic_array(buf1), buf1, buf1_len);
- ),
- TP_printk("[%p] TX %.2x (%zu bytes)",
- __entry->priv,
- ((u8 *)__get_dynamic_array(buf0))[0],
- __entry->framelen)
-);
-
-TRACE_EVENT(iwlwifi_legacy_dev_ucode_error,
- TP_PROTO(struct iwl_priv *priv, u32 desc, u32 time,
- u32 data1, u32 data2, u32 line, u32 blink1,
- u32 blink2, u32 ilink1, u32 ilink2),
- TP_ARGS(priv, desc, time, data1, data2, line,
- blink1, blink2, ilink1, ilink2),
- TP_STRUCT__entry(
- PRIV_ENTRY
- __field(u32, desc)
- __field(u32, time)
- __field(u32, data1)
- __field(u32, data2)
- __field(u32, line)
- __field(u32, blink1)
- __field(u32, blink2)
- __field(u32, ilink1)
- __field(u32, ilink2)
- ),
- TP_fast_assign(
- PRIV_ASSIGN;
- __entry->desc = desc;
- __entry->time = time;
- __entry->data1 = data1;
- __entry->data2 = data2;
- __entry->line = line;
- __entry->blink1 = blink1;
- __entry->blink2 = blink2;
- __entry->ilink1 = ilink1;
- __entry->ilink2 = ilink2;
- ),
- TP_printk("[%p] #%02d %010u data 0x%08X 0x%08X line %u, "
- "blink 0x%05X 0x%05X ilink 0x%05X 0x%05X",
- __entry->priv, __entry->desc, __entry->time, __entry->data1,
- __entry->data2, __entry->line, __entry->blink1,
- __entry->blink2, __entry->ilink1, __entry->ilink2)
-);
-
-#endif /* __IWLWIFI_DEVICE_TRACE */
-
-#undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH .
-#undef TRACE_INCLUDE_FILE
-#define TRACE_INCLUDE_FILE iwl-devtrace
-#include <trace/define_trace.h>
diff --git a/drivers/net/wireless/iwlegacy/iwl-eeprom.c b/drivers/net/wireless/iwlegacy/iwl-eeprom.c
deleted file mode 100644
index 5bf3f49..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-eeprom.c
+++ /dev/null
@@ -1,553 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <net/mac80211.h>
-
-#include "iwl-commands.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-debug.h"
-#include "iwl-eeprom.h"
-#include "iwl-io.h"
-
-/************************** EEPROM BANDS ****************************
- *
- * The iwlegacy_eeprom_band definitions below provide the mapping from the
- * EEPROM contents to the specific channel number supported for each
- * band.
- *
- * For example, iwl_priv->eeprom.band_3_channels[4] from the band_3
- * definition below maps to physical channel 42 in the 5.2GHz spectrum.
- * The specific geography and calibration information for that channel
- * is contained in the eeprom map itself.
- *
- * During init, we copy the eeprom information and channel map
- * information into priv->channel_info_24/52 and priv->channel_map_24/52
- *
- * channel_map_24/52 provides the index in the channel_info array for a
- * given channel. We have to have two separate maps as there is channel
- * overlap with the 2.4GHz and 5.2GHz spectrum as seen in band_1 and
- * band_2
- *
- * A value of 0xff stored in the channel_map indicates that the channel
- * is not supported by the hardware at all.
- *
- * A value of 0xfe in the channel_map indicates that the channel is not
- * valid for Tx with the current hardware. This means that
- * while the system can tune and receive on a given channel, it may not
- * be able to associate or transmit any frames on that
- * channel. There is no corresponding channel information for that
- * entry.
- *
- *********************************************************************/
-
-/* 2.4 GHz */
-const u8 iwlegacy_eeprom_band_1[14] = {
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
-};
-
-/* 5.2 GHz bands */
-static const u8 iwlegacy_eeprom_band_2[] = { /* 4915-5080MHz */
- 183, 184, 185, 187, 188, 189, 192, 196, 7, 8, 11, 12, 16
-};
-
-static const u8 iwlegacy_eeprom_band_3[] = { /* 5170-5320MHz */
- 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
-};
-
-static const u8 iwlegacy_eeprom_band_4[] = { /* 5500-5700MHz */
- 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
-};
-
-static const u8 iwlegacy_eeprom_band_5[] = { /* 5725-5825MHz */
- 145, 149, 153, 157, 161, 165
-};
-
-static const u8 iwlegacy_eeprom_band_6[] = { /* 2.4 ht40 channel */
- 1, 2, 3, 4, 5, 6, 7
-};
-
-static const u8 iwlegacy_eeprom_band_7[] = { /* 5.2 ht40 channel */
- 36, 44, 52, 60, 100, 108, 116, 124, 132, 149, 157
-};
-
-/******************************************************************************
- *
- * EEPROM related functions
- *
-******************************************************************************/
-
-static int iwl_legacy_eeprom_verify_signature(struct iwl_priv *priv)
-{
- u32 gp = iwl_read32(priv, CSR_EEPROM_GP) & CSR_EEPROM_GP_VALID_MSK;
- int ret = 0;
-
- IWL_DEBUG_EEPROM(priv, "EEPROM signature=0x%08x\n", gp);
- switch (gp) {
- case CSR_EEPROM_GP_GOOD_SIG_EEP_LESS_THAN_4K:
- case CSR_EEPROM_GP_GOOD_SIG_EEP_MORE_THAN_4K:
- break;
- default:
- IWL_ERR(priv, "bad EEPROM signature,"
- "EEPROM_GP=0x%08x\n", gp);
- ret = -ENOENT;
- break;
- }
- return ret;
-}
-
-const u8
-*iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv, size_t offset)
-{
- BUG_ON(offset >= priv->cfg->base_params->eeprom_size);
- return &priv->eeprom[offset];
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_query_addr);
-
-u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset)
-{
- if (!priv->eeprom)
- return 0;
- return (u16)priv->eeprom[offset] | ((u16)priv->eeprom[offset + 1] << 8);
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_query16);
-
-/**
- * iwl_legacy_eeprom_init - read EEPROM contents
- *
- * Load the EEPROM contents from adapter into priv->eeprom
- *
- * NOTE: This routine uses the non-debug IO access functions.
- */
-int iwl_legacy_eeprom_init(struct iwl_priv *priv)
-{
- __le16 *e;
- u32 gp = iwl_read32(priv, CSR_EEPROM_GP);
- int sz;
- int ret;
- u16 addr;
-
- /* allocate eeprom */
- sz = priv->cfg->base_params->eeprom_size;
- IWL_DEBUG_EEPROM(priv, "NVM size = %d\n", sz);
- priv->eeprom = kzalloc(sz, GFP_KERNEL);
- if (!priv->eeprom) {
- ret = -ENOMEM;
- goto alloc_err;
- }
- e = (__le16 *)priv->eeprom;
-
- priv->cfg->ops->lib->apm_ops.init(priv);
-
- ret = iwl_legacy_eeprom_verify_signature(priv);
- if (ret < 0) {
- IWL_ERR(priv, "EEPROM not found, EEPROM_GP=0x%08x\n", gp);
- ret = -ENOENT;
- goto err;
- }
-
- /* Make sure driver (instead of uCode) is allowed to read EEPROM */
- ret = priv->cfg->ops->lib->eeprom_ops.acquire_semaphore(priv);
- if (ret < 0) {
- IWL_ERR(priv, "Failed to acquire EEPROM semaphore.\n");
- ret = -ENOENT;
- goto err;
- }
-
- /* eeprom is an array of 16bit values */
- for (addr = 0; addr < sz; addr += sizeof(u16)) {
- u32 r;
-
- _iwl_legacy_write32(priv, CSR_EEPROM_REG,
- CSR_EEPROM_REG_MSK_ADDR & (addr << 1));
-
- ret = iwl_poll_bit(priv, CSR_EEPROM_REG,
- CSR_EEPROM_REG_READ_VALID_MSK,
- CSR_EEPROM_REG_READ_VALID_MSK,
- IWL_EEPROM_ACCESS_TIMEOUT);
- if (ret < 0) {
- IWL_ERR(priv, "Time out reading EEPROM[%d]\n",
- addr);
- goto done;
- }
- r = _iwl_legacy_read_direct32(priv, CSR_EEPROM_REG);
- e[addr / 2] = cpu_to_le16(r >> 16);
- }
-
- IWL_DEBUG_EEPROM(priv, "NVM Type: %s, version: 0x%x\n",
- "EEPROM",
- iwl_legacy_eeprom_query16(priv, EEPROM_VERSION));
-
- ret = 0;
-done:
- priv->cfg->ops->lib->eeprom_ops.release_semaphore(priv);
-
-err:
- if (ret)
- iwl_legacy_eeprom_free(priv);
- /* Reset chip to save power until we load uCode during "up". */
- iwl_legacy_apm_stop(priv);
-alloc_err:
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_init);
-
-void iwl_legacy_eeprom_free(struct iwl_priv *priv)
-{
- kfree(priv->eeprom);
- priv->eeprom = NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_eeprom_free);
-
-static void iwl_legacy_init_band_reference(const struct iwl_priv *priv,
- int eep_band, int *eeprom_ch_count,
- const struct iwl_eeprom_channel **eeprom_ch_info,
- const u8 **eeprom_ch_index)
-{
- u32 offset = priv->cfg->ops->lib->
- eeprom_ops.regulatory_bands[eep_band - 1];
- switch (eep_band) {
- case 1: /* 2.4GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_1);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_1;
- break;
- case 2: /* 4.9GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_2);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_2;
- break;
- case 3: /* 5.2GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_3);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_3;
- break;
- case 4: /* 5.5GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_4);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_4;
- break;
- case 5: /* 5.7GHz band */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_5);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_5;
- break;
- case 6: /* 2.4GHz ht40 channels */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_6);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_6;
- break;
- case 7: /* 5 GHz ht40 channels */
- *eeprom_ch_count = ARRAY_SIZE(iwlegacy_eeprom_band_7);
- *eeprom_ch_info = (struct iwl_eeprom_channel *)
- iwl_legacy_eeprom_query_addr(priv, offset);
- *eeprom_ch_index = iwlegacy_eeprom_band_7;
- break;
- default:
- BUG();
- }
-}
-
-#define CHECK_AND_PRINT(x) ((eeprom_ch->flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-/**
- * iwl_legacy_mod_ht40_chan_info - Copy ht40 channel info into driver's priv.
- *
- * Does not set up a command, or touch hardware.
- */
-static int iwl_legacy_mod_ht40_chan_info(struct iwl_priv *priv,
- enum ieee80211_band band, u16 channel,
- const struct iwl_eeprom_channel *eeprom_ch,
- u8 clear_ht40_extension_channel)
-{
- struct iwl_channel_info *ch_info;
-
- ch_info = (struct iwl_channel_info *)
- iwl_legacy_get_channel_info(priv, band, channel);
-
- if (!iwl_legacy_is_channel_valid(ch_info))
- return -1;
-
- IWL_DEBUG_EEPROM(priv, "HT40 Ch. %d [%sGHz] %s%s%s%s%s(0x%02x %ddBm):"
- " Ad-Hoc %ssupported\n",
- ch_info->channel,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT(IBSS),
- CHECK_AND_PRINT(ACTIVE),
- CHECK_AND_PRINT(RADAR),
- CHECK_AND_PRINT(WIDE),
- CHECK_AND_PRINT(DFS),
- eeprom_ch->flags,
- eeprom_ch->max_power_avg,
- ((eeprom_ch->flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch->flags & EEPROM_CHANNEL_RADAR)) ?
- "" : "not ");
-
- ch_info->ht40_eeprom = *eeprom_ch;
- ch_info->ht40_max_power_avg = eeprom_ch->max_power_avg;
- ch_info->ht40_flags = eeprom_ch->flags;
- if (eeprom_ch->flags & EEPROM_CHANNEL_VALID)
- ch_info->ht40_extension_channel &=
- ~clear_ht40_extension_channel;
-
- return 0;
-}
-
-#define CHECK_AND_PRINT_I(x) ((eeprom_ch_info[ch].flags & EEPROM_CHANNEL_##x) \
- ? # x " " : "")
-
-/**
- * iwl_legacy_init_channel_map - Set up driver's info for all possible channels
- */
-int iwl_legacy_init_channel_map(struct iwl_priv *priv)
-{
- int eeprom_ch_count = 0;
- const u8 *eeprom_ch_index = NULL;
- const struct iwl_eeprom_channel *eeprom_ch_info = NULL;
- int band, ch;
- struct iwl_channel_info *ch_info;
-
- if (priv->channel_count) {
- IWL_DEBUG_EEPROM(priv, "Channel map already initialized.\n");
- return 0;
- }
-
- IWL_DEBUG_EEPROM(priv, "Initializing regulatory info from EEPROM\n");
-
- priv->channel_count =
- ARRAY_SIZE(iwlegacy_eeprom_band_1) +
- ARRAY_SIZE(iwlegacy_eeprom_band_2) +
- ARRAY_SIZE(iwlegacy_eeprom_band_3) +
- ARRAY_SIZE(iwlegacy_eeprom_band_4) +
- ARRAY_SIZE(iwlegacy_eeprom_band_5);
-
- IWL_DEBUG_EEPROM(priv, "Parsing data for %d channels.\n",
- priv->channel_count);
-
- priv->channel_info = kzalloc(sizeof(struct iwl_channel_info) *
- priv->channel_count, GFP_KERNEL);
- if (!priv->channel_info) {
- IWL_ERR(priv, "Could not allocate channel_info\n");
- priv->channel_count = 0;
- return -ENOMEM;
- }
-
- ch_info = priv->channel_info;
-
- /* Loop through the 5 EEPROM bands adding them in order to the
- * channel map we maintain (that contains additional information than
- * what just in the EEPROM) */
- for (band = 1; band <= 5; band++) {
-
- iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- ch_info->channel = eeprom_ch_index[ch];
- ch_info->band = (band == 1) ? IEEE80211_BAND_2GHZ :
- IEEE80211_BAND_5GHZ;
-
- /* permanently store EEPROM's channel regulatory flags
- * and max power in channel info database. */
- ch_info->eeprom = eeprom_ch_info[ch];
-
- /* Copy the run-time flags so they are there even on
- * invalid channels */
- ch_info->flags = eeprom_ch_info[ch].flags;
- /* First write that ht40 is not enabled, and then enable
- * one by one */
- ch_info->ht40_extension_channel =
- IEEE80211_CHAN_NO_HT40;
-
- if (!(iwl_legacy_is_channel_valid(ch_info))) {
- IWL_DEBUG_EEPROM(priv,
- "Ch. %d Flags %x [%sGHz] - "
- "No traffic\n",
- ch_info->channel,
- ch_info->flags,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4");
- ch_info++;
- continue;
- }
-
- /* Initialize regulatory-based run-time data */
- ch_info->max_power_avg = ch_info->curr_txpow =
- eeprom_ch_info[ch].max_power_avg;
- ch_info->scan_power = eeprom_ch_info[ch].max_power_avg;
- ch_info->min_power = 0;
-
- IWL_DEBUG_EEPROM(priv, "Ch. %d [%sGHz] "
- "%s%s%s%s%s%s(0x%02x %ddBm):"
- " Ad-Hoc %ssupported\n",
- ch_info->channel,
- iwl_legacy_is_channel_a_band(ch_info) ?
- "5.2" : "2.4",
- CHECK_AND_PRINT_I(VALID),
- CHECK_AND_PRINT_I(IBSS),
- CHECK_AND_PRINT_I(ACTIVE),
- CHECK_AND_PRINT_I(RADAR),
- CHECK_AND_PRINT_I(WIDE),
- CHECK_AND_PRINT_I(DFS),
- eeprom_ch_info[ch].flags,
- eeprom_ch_info[ch].max_power_avg,
- ((eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_IBSS)
- && !(eeprom_ch_info[ch].
- flags & EEPROM_CHANNEL_RADAR))
- ? "" : "not ");
-
- ch_info++;
- }
- }
-
- /* Check if we do have HT40 channels */
- if (priv->cfg->ops->lib->eeprom_ops.regulatory_bands[5] ==
- EEPROM_REGULATORY_BAND_NO_HT40 &&
- priv->cfg->ops->lib->eeprom_ops.regulatory_bands[6] ==
- EEPROM_REGULATORY_BAND_NO_HT40)
- return 0;
-
- /* Two additional EEPROM bands for 2.4 and 5 GHz HT40 channels */
- for (band = 6; band <= 7; band++) {
- enum ieee80211_band ieeeband;
-
- iwl_legacy_init_band_reference(priv, band, &eeprom_ch_count,
- &eeprom_ch_info, &eeprom_ch_index);
-
- /* EEPROM band 6 is 2.4, band 7 is 5 GHz */
- ieeeband =
- (band == 6) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
-
- /* Loop through each band adding each of the channels */
- for (ch = 0; ch < eeprom_ch_count; ch++) {
- /* Set up driver's info for lower half */
- iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
- eeprom_ch_index[ch],
- &eeprom_ch_info[ch],
- IEEE80211_CHAN_NO_HT40PLUS);
-
- /* Set up driver's info for upper half */
- iwl_legacy_mod_ht40_chan_info(priv, ieeeband,
- eeprom_ch_index[ch] + 4,
- &eeprom_ch_info[ch],
- IEEE80211_CHAN_NO_HT40MINUS);
- }
- }
-
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_init_channel_map);
-
-/*
- * iwl_legacy_free_channel_map - undo allocations in iwl_legacy_init_channel_map
- */
-void iwl_legacy_free_channel_map(struct iwl_priv *priv)
-{
- kfree(priv->channel_info);
- priv->channel_count = 0;
-}
-EXPORT_SYMBOL(iwl_legacy_free_channel_map);
-
-/**
- * iwl_legacy_get_channel_info - Find driver's private channel info
- *
- * Based on band and channel number.
- */
-const struct
-iwl_channel_info *iwl_legacy_get_channel_info(const struct iwl_priv *priv,
- enum ieee80211_band band, u16 channel)
-{
- int i;
-
- switch (band) {
- case IEEE80211_BAND_5GHZ:
- for (i = 14; i < priv->channel_count; i++) {
- if (priv->channel_info[i].channel == channel)
- return &priv->channel_info[i];
- }
- break;
- case IEEE80211_BAND_2GHZ:
- if (channel >= 1 && channel <= 14)
- return &priv->channel_info[channel - 1];
- break;
- default:
- BUG();
- }
-
- return NULL;
-}
-EXPORT_SYMBOL(iwl_legacy_get_channel_info);
diff --git a/drivers/net/wireless/iwlegacy/iwl-eeprom.h b/drivers/net/wireless/iwlegacy/iwl-eeprom.h
deleted file mode 100644
index c59c810..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-eeprom.h
+++ /dev/null
@@ -1,344 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *****************************************************************************/
-
-#ifndef __iwl_legacy_eeprom_h__
-#define __iwl_legacy_eeprom_h__
-
-#include <net/mac80211.h>
-
-struct iwl_priv;
-
-/*
- * EEPROM access time values:
- *
- * Driver initiates EEPROM read by writing byte address << 1 to CSR_EEPROM_REG.
- * Driver then polls CSR_EEPROM_REG for CSR_EEPROM_REG_READ_VALID_MSK (0x1).
- * When polling, wait 10 uSec between polling loops, up to a maximum 5000 uSec.
- * Driver reads 16-bit value from bits 31-16 of CSR_EEPROM_REG.
- */
-#define IWL_EEPROM_ACCESS_TIMEOUT 5000 /* uSec */
-
-#define IWL_EEPROM_SEM_TIMEOUT 10 /* microseconds */
-#define IWL_EEPROM_SEM_RETRY_LIMIT 1000 /* number of attempts (not time) */
-
-
-/*
- * Regulatory channel usage flags in EEPROM struct iwl4965_eeprom_channel.flags.
- *
- * IBSS and/or AP operation is allowed *only* on those channels with
- * (VALID && IBSS && ACTIVE && !RADAR). This restriction is in place because
- * RADAR detection is not supported by the 4965 driver, but is a
- * requirement for establishing a new network for legal operation on channels
- * requiring RADAR detection or restricting ACTIVE scanning.
- *
- * NOTE: "WIDE" flag does not indicate anything about "HT40" 40 MHz channels.
- * It only indicates that 20 MHz channel use is supported; HT40 channel
- * usage is indicated by a separate set of regulatory flags for each
- * HT40 channel pair.
- *
- * NOTE: Using a channel inappropriately will result in a uCode error!
- */
-#define IWL_NUM_TX_CALIB_GROUPS 5
-enum {
- EEPROM_CHANNEL_VALID = (1 << 0), /* usable for this SKU/geo */
- EEPROM_CHANNEL_IBSS = (1 << 1), /* usable as an IBSS channel */
- /* Bit 2 Reserved */
- EEPROM_CHANNEL_ACTIVE = (1 << 3), /* active scanning allowed */
- EEPROM_CHANNEL_RADAR = (1 << 4), /* radar detection required */
- EEPROM_CHANNEL_WIDE = (1 << 5), /* 20 MHz channel okay */
- /* Bit 6 Reserved (was Narrow Channel) */
- EEPROM_CHANNEL_DFS = (1 << 7), /* dynamic freq selection candidate */
-};
-
-/* SKU Capabilities */
-/* 3945 only */
-#define EEPROM_SKU_CAP_SW_RF_KILL_ENABLE (1 << 0)
-#define EEPROM_SKU_CAP_HW_RF_KILL_ENABLE (1 << 1)
-
-/* *regulatory* channel data format in eeprom, one for each channel.
- * There are separate entries for HT40 (40 MHz) vs. normal (20 MHz) channels. */
-struct iwl_eeprom_channel {
- u8 flags; /* EEPROM_CHANNEL_* flags copied from EEPROM */
- s8 max_power_avg; /* max power (dBm) on this chnl, limit 31 */
-} __packed;
-
-/* 3945 Specific */
-#define EEPROM_3945_EEPROM_VERSION (0x2f)
-
-/* 4965 has two radio transmitters (and 3 radio receivers) */
-#define EEPROM_TX_POWER_TX_CHAINS (2)
-
-/* 4965 has room for up to 8 sets of txpower calibration data */
-#define EEPROM_TX_POWER_BANDS (8)
-
-/* 4965 factory calibration measures txpower gain settings for
- * each of 3 target output levels */
-#define EEPROM_TX_POWER_MEASUREMENTS (3)
-
-/* 4965 Specific */
-/* 4965 driver does not work with txpower calibration version < 5 */
-#define EEPROM_4965_TX_POWER_VERSION (5)
-#define EEPROM_4965_EEPROM_VERSION (0x2f)
-#define EEPROM_4965_CALIB_VERSION_OFFSET (2*0xB6) /* 2 bytes */
-#define EEPROM_4965_CALIB_TXPOWER_OFFSET (2*0xE8) /* 48 bytes */
-#define EEPROM_4965_BOARD_REVISION (2*0x4F) /* 2 bytes */
-#define EEPROM_4965_BOARD_PBA (2*0x56+1) /* 9 bytes */
-
-/* 2.4 GHz */
-extern const u8 iwlegacy_eeprom_band_1[14];
-
-/*
- * factory calibration data for one txpower level, on one channel,
- * measured on one of the 2 tx chains (radio transmitter and associated
- * antenna). EEPROM contains:
- *
- * 1) Temperature (degrees Celsius) of device when measurement was made.
- *
- * 2) Gain table index used to achieve the target measurement power.
- * This refers to the "well-known" gain tables (see iwl-4965-hw.h).
- *
- * 3) Actual measured output power, in half-dBm ("34" = 17 dBm).
- *
- * 4) RF power amplifier detector level measurement (not used).
- */
-struct iwl_eeprom_calib_measure {
- u8 temperature; /* Device temperature (Celsius) */
- u8 gain_idx; /* Index into gain table */
- u8 actual_pow; /* Measured RF output power, half-dBm */
- s8 pa_det; /* Power amp detector level (not used) */
-} __packed;
-
-
-/*
- * measurement set for one channel. EEPROM contains:
- *
- * 1) Channel number measured
- *
- * 2) Measurements for each of 3 power levels for each of 2 radio transmitters
- * (a.k.a. "tx chains") (6 measurements altogether)
- */
-struct iwl_eeprom_calib_ch_info {
- u8 ch_num;
- struct iwl_eeprom_calib_measure
- measurements[EEPROM_TX_POWER_TX_CHAINS]
- [EEPROM_TX_POWER_MEASUREMENTS];
-} __packed;
-
-/*
- * txpower subband info.
- *
- * For each frequency subband, EEPROM contains the following:
- *
- * 1) First and last channels within range of the subband. "0" values
- * indicate that this sample set is not being used.
- *
- * 2) Sample measurement sets for 2 channels close to the range endpoints.
- */
-struct iwl_eeprom_calib_subband_info {
- u8 ch_from; /* channel number of lowest channel in subband */
- u8 ch_to; /* channel number of highest channel in subband */
- struct iwl_eeprom_calib_ch_info ch1;
- struct iwl_eeprom_calib_ch_info ch2;
-} __packed;
-
-
-/*
- * txpower calibration info. EEPROM contains:
- *
- * 1) Factory-measured saturation power levels (maximum levels at which
- * tx power amplifier can output a signal without too much distortion).
- * There is one level for 2.4 GHz band and one for 5 GHz band. These
- * values apply to all channels within each of the bands.
- *
- * 2) Factory-measured power supply voltage level. This is assumed to be
- * constant (i.e. same value applies to all channels/bands) while the
- * factory measurements are being made.
- *
- * 3) Up to 8 sets of factory-measured txpower calibration values.
- * These are for different frequency ranges, since txpower gain
- * characteristics of the analog radio circuitry vary with frequency.
- *
- * Not all sets need to be filled with data;
- * struct iwl_eeprom_calib_subband_info contains range of channels
- * (0 if unused) for each set of data.
- */
-struct iwl_eeprom_calib_info {
- u8 saturation_power24; /* half-dBm (e.g. "34" = 17 dBm) */
- u8 saturation_power52; /* half-dBm */
- __le16 voltage; /* signed */
- struct iwl_eeprom_calib_subband_info
- band_info[EEPROM_TX_POWER_BANDS];
-} __packed;
-
-
-/* General */
-#define EEPROM_DEVICE_ID (2*0x08) /* 2 bytes */
-#define EEPROM_MAC_ADDRESS (2*0x15) /* 6 bytes */
-#define EEPROM_BOARD_REVISION (2*0x35) /* 2 bytes */
-#define EEPROM_BOARD_PBA_NUMBER (2*0x3B+1) /* 9 bytes */
-#define EEPROM_VERSION (2*0x44) /* 2 bytes */
-#define EEPROM_SKU_CAP (2*0x45) /* 2 bytes */
-#define EEPROM_OEM_MODE (2*0x46) /* 2 bytes */
-#define EEPROM_WOWLAN_MODE (2*0x47) /* 2 bytes */
-#define EEPROM_RADIO_CONFIG (2*0x48) /* 2 bytes */
-#define EEPROM_NUM_MAC_ADDRESS (2*0x4C) /* 2 bytes */
-
-/* The following masks are to be applied on EEPROM_RADIO_CONFIG */
-#define EEPROM_RF_CFG_TYPE_MSK(x) (x & 0x3) /* bits 0-1 */
-#define EEPROM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */
-#define EEPROM_RF_CFG_DASH_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */
-#define EEPROM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */
-#define EEPROM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */
-#define EEPROM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */
-
-#define EEPROM_3945_RF_CFG_TYPE_MAX 0x0
-#define EEPROM_4965_RF_CFG_TYPE_MAX 0x1
-
-/*
- * Per-channel regulatory data.
- *
- * Each channel that *might* be supported by iwl has a fixed location
- * in EEPROM containing EEPROM_CHANNEL_* usage flags (LSB) and max regulatory
- * txpower (MSB).
- *
- * Entries immediately below are for 20 MHz channel width. HT40 (40 MHz)
- * channels (only for 4965, not supported by 3945) appear later in the EEPROM.
- *
- * 2.4 GHz channels 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
- */
-#define EEPROM_REGULATORY_SKU_ID (2*0x60) /* 4 bytes */
-#define EEPROM_REGULATORY_BAND_1 (2*0x62) /* 2 bytes */
-#define EEPROM_REGULATORY_BAND_1_CHANNELS (2*0x63) /* 28 bytes */
-
-/*
- * 4.9 GHz channels 183, 184, 185, 187, 188, 189, 192, 196,
- * 5.0 GHz channels 7, 8, 11, 12, 16
- * (4915-5080MHz) (none of these is ever supported)
- */
-#define EEPROM_REGULATORY_BAND_2 (2*0x71) /* 2 bytes */
-#define EEPROM_REGULATORY_BAND_2_CHANNELS (2*0x72) /* 26 bytes */
-
-/*
- * 5.2 GHz channels 34, 36, 38, 40, 42, 44, 46, 48, 52, 56, 60, 64
- * (5170-5320MHz)
- */
-#define EEPROM_REGULATORY_BAND_3 (2*0x7F) /* 2 bytes */
-#define EEPROM_REGULATORY_BAND_3_CHANNELS (2*0x80) /* 24 bytes */
-
-/*
- * 5.5 GHz channels 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140
- * (5500-5700MHz)
- */
-#define EEPROM_REGULATORY_BAND_4 (2*0x8C) /* 2 bytes */
-#define EEPROM_REGULATORY_BAND_4_CHANNELS (2*0x8D) /* 22 bytes */
-
-/*
- * 5.7 GHz channels 145, 149, 153, 157, 161, 165
- * (5725-5825MHz)
- */
-#define EEPROM_REGULATORY_BAND_5 (2*0x98) /* 2 bytes */
-#define EEPROM_REGULATORY_BAND_5_CHANNELS (2*0x99) /* 12 bytes */
-
-/*
- * 2.4 GHz HT40 channels 1 (5), 2 (6), 3 (7), 4 (8), 5 (9), 6 (10), 7 (11)
- *
- * The channel listed is the center of the lower 20 MHz half of the channel.
- * The overall center frequency is actually 2 channels (10 MHz) above that,
- * and the upper half of each HT40 channel is centered 4 channels (20 MHz) away
- * from the lower half; e.g. the upper half of HT40 channel 1 is channel 5,
- * and the overall HT40 channel width centers on channel 3.
- *
- * NOTE: The RXON command uses 20 MHz channel numbers to specify the
- * control channel to which to tune. RXON also specifies whether the
- * control channel is the upper or lower half of a HT40 channel.
- *
- * NOTE: 4965 does not support HT40 channels on 2.4 GHz.
- */
-#define EEPROM_4965_REGULATORY_BAND_24_HT40_CHANNELS (2*0xA0) /* 14 bytes */
-
-/*
- * 5.2 GHz HT40 channels 36 (40), 44 (48), 52 (56), 60 (64),
- * 100 (104), 108 (112), 116 (120), 124 (128), 132 (136), 149 (153), 157 (161)
- */
-#define EEPROM_4965_REGULATORY_BAND_52_HT40_CHANNELS (2*0xA8) /* 22 bytes */
-
-#define EEPROM_REGULATORY_BAND_NO_HT40 (0)
-
-struct iwl_eeprom_ops {
- const u32 regulatory_bands[7];
- int (*acquire_semaphore) (struct iwl_priv *priv);
- void (*release_semaphore) (struct iwl_priv *priv);
-};
-
-
-int iwl_legacy_eeprom_init(struct iwl_priv *priv);
-void iwl_legacy_eeprom_free(struct iwl_priv *priv);
-const u8 *iwl_legacy_eeprom_query_addr(const struct iwl_priv *priv,
- size_t offset);
-u16 iwl_legacy_eeprom_query16(const struct iwl_priv *priv, size_t offset);
-int iwl_legacy_init_channel_map(struct iwl_priv *priv);
-void iwl_legacy_free_channel_map(struct iwl_priv *priv);
-const struct iwl_channel_info *iwl_legacy_get_channel_info(
- const struct iwl_priv *priv,
- enum ieee80211_band band, u16 channel);
-
-#endif /* __iwl_legacy_eeprom_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-fh.h b/drivers/net/wireless/iwlegacy/iwl-fh.h
deleted file mode 100644
index 6e60918..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-fh.h
+++ /dev/null
@@ -1,513 +0,0 @@
-/******************************************************************************
- *
- * This file is provided under a dual BSD/GPLv2 license. When using or
- * redistributing this file, you may do so under either license.
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- * BSD LICENSE
- *
- * Copyright(c) 2005 - 2011 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- *****************************************************************************/
-#ifndef __iwl_legacy_fh_h__
-#define __iwl_legacy_fh_h__
-
-/****************************/
-/* Flow Handler Definitions */
-/****************************/
-
-/**
- * This I/O area is directly read/writable by driver (e.g. Linux uses writel())
- * Addresses are offsets from device's PCI hardware base address.
- */
-#define FH_MEM_LOWER_BOUND (0x1000)
-#define FH_MEM_UPPER_BOUND (0x2000)
-
-/**
- * Keep-Warm (KW) buffer base address.
- *
- * Driver must allocate a 4KByte buffer that is used by 4965 for keeping the
- * host DRAM powered on (via dummy accesses to DRAM) to maintain low-latency
- * DRAM access when 4965 is Txing or Rxing. The dummy accesses prevent host
- * from going into a power-savings mode that would cause higher DRAM latency,
- * and possible data over/under-runs, before all Tx/Rx is complete.
- *
- * Driver loads FH_KW_MEM_ADDR_REG with the physical address (bits 35:4)
- * of the buffer, which must be 4K aligned. Once this is set up, the 4965
- * automatically invokes keep-warm accesses when normal accesses might not
- * be sufficient to maintain fast DRAM response.
- *
- * Bit fields:
- * 31-0: Keep-warm buffer physical base address [35:4], must be 4K aligned
- */
-#define FH_KW_MEM_ADDR_REG (FH_MEM_LOWER_BOUND + 0x97C)
-
-
-/**
- * TFD Circular Buffers Base (CBBC) addresses
- *
- * 4965 has 16 base pointer registers, one for each of 16 host-DRAM-resident
- * circular buffers (CBs/queues) containing Transmit Frame Descriptors (TFDs)
- * (see struct iwl_tfd_frame). These 16 pointer registers are offset by 0x04
- * bytes from one another. Each TFD circular buffer in DRAM must be 256-byte
- * aligned (address bits 0-7 must be 0).
- *
- * Bit fields in each pointer register:
- * 27-0: TFD CB physical base address [35:8], must be 256-byte aligned
- */
-#define FH_MEM_CBBC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
-#define FH_MEM_CBBC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xA10)
-
-/* Find TFD CB base pointer for given queue (range 0-15). */
-#define FH_MEM_CBBC_QUEUE(x) (FH_MEM_CBBC_LOWER_BOUND + (x) * 0x4)
-
-
-/**
- * Rx SRAM Control and Status Registers (RSCSR)
- *
- * These registers provide handshake between driver and 4965 for the Rx queue
- * (this queue handles *all* command responses, notifications, Rx data, etc.
- * sent from 4965 uCode to host driver). Unlike Tx, there is only one Rx
- * queue, and only one Rx DMA/FIFO channel. Also unlike Tx, which can
- * concatenate up to 20 DRAM buffers to form a Tx frame, each Receive Buffer
- * Descriptor (RBD) points to only one Rx Buffer (RB); there is a 1:1
- * mapping between RBDs and RBs.
- *
- * Driver must allocate host DRAM memory for the following, and set the
- * physical address of each into 4965 registers:
- *
- * 1) Receive Buffer Descriptor (RBD) circular buffer (CB), typically with 256
- * entries (although any power of 2, up to 4096, is selectable by driver).
- * Each entry (1 dword) points to a receive buffer (RB) of consistent size
- * (typically 4K, although 8K or 16K are also selectable by driver).
- * Driver sets up RB size and number of RBDs in the CB via Rx config
- * register FH_MEM_RCSR_CHNL0_CONFIG_REG.
- *
- * Bit fields within one RBD:
- * 27-0: Receive Buffer physical address bits [35:8], 256-byte aligned
- *
- * Driver sets physical address [35:8] of base of RBD circular buffer
- * into FH_RSCSR_CHNL0_RBDCB_BASE_REG [27:0].
- *
- * 2) Rx status buffer, 8 bytes, in which 4965 indicates which Rx Buffers
- * (RBs) have been filled, via a "write pointer", actually the index of
- * the RB's corresponding RBD within the circular buffer. Driver sets
- * physical address [35:4] into FH_RSCSR_CHNL0_STTS_WPTR_REG [31:0].
- *
- * Bit fields in lower dword of Rx status buffer (upper dword not used
- * by driver; see struct iwl4965_shared, val0):
- * 31-12: Not used by driver
- * 11- 0: Index of last filled Rx buffer descriptor
- * (4965 writes, driver reads this value)
- *
- * As the driver prepares Receive Buffers (RBs) for 4965 to fill, driver must
- * enter pointers to these RBs into contiguous RBD circular buffer entries,
- * and update the 4965's "write" index register,
- * FH_RSCSR_CHNL0_RBDCB_WPTR_REG.
- *
- * This "write" index corresponds to the *next* RBD that the driver will make
- * available, i.e. one RBD past the tail of the ready-to-fill RBDs within
- * the circular buffer. This value should initially be 0 (before preparing any
- * RBs), should be 8 after preparing the first 8 RBs (for example), and must
- * wrap back to 0 at the end of the circular buffer (but don't wrap before
- * "read" index has advanced past 1! See below).
- * NOTE: 4965 EXPECTS THE WRITE INDEX TO BE INCREMENTED IN MULTIPLES OF 8.
- *
- * As the 4965 fills RBs (referenced from contiguous RBDs within the circular
- * buffer), it updates the Rx status buffer in host DRAM, 2) described above,
- * to tell the driver the index of the latest filled RBD. The driver must
- * read this "read" index from DRAM after receiving an Rx interrupt from 4965.
- *
- * The driver must also internally keep track of a third index, which is the
- * next RBD to process. When receiving an Rx interrupt, driver should process
- * all filled but unprocessed RBs up to, but not including, the RB
- * corresponding to the "read" index. For example, if "read" index becomes "1",
- * driver may process the RB pointed to by RBD 0. Depending on volume of
- * traffic, there may be many RBs to process.
- *
- * If read index == write index, 4965 thinks there is no room to put new data.
- * Due to this, the maximum number of filled RBs is 255, instead of 256. To
- * be safe, make sure that there is a gap of at least 2 RBDs between "write"
- * and "read" indexes; that is, make sure that there are no more than 254
- * buffers waiting to be filled.
- */
-#define FH_MEM_RSCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xBC0)
-#define FH_MEM_RSCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
-#define FH_MEM_RSCSR_CHNL0 (FH_MEM_RSCSR_LOWER_BOUND)
-
-/**
- * Physical base address of 8-byte Rx Status buffer.
- * Bit fields:
- * 31-0: Rx status buffer physical base address [35:4], must 16-byte aligned.
- */
-#define FH_RSCSR_CHNL0_STTS_WPTR_REG (FH_MEM_RSCSR_CHNL0)
-
-/**
- * Physical base address of Rx Buffer Descriptor Circular Buffer.
- * Bit fields:
- * 27-0: RBD CD physical base address [35:8], must be 256-byte aligned.
- */
-#define FH_RSCSR_CHNL0_RBDCB_BASE_REG (FH_MEM_RSCSR_CHNL0 + 0x004)
-
-/**
- * Rx write pointer (index, really!).
- * Bit fields:
- * 11-0: Index of driver's most recent prepared-to-be-filled RBD, + 1.
- * NOTE: For 256-entry circular buffer, use only bits [7:0].
- */
-#define FH_RSCSR_CHNL0_RBDCB_WPTR_REG (FH_MEM_RSCSR_CHNL0 + 0x008)
-#define FH_RSCSR_CHNL0_WPTR (FH_RSCSR_CHNL0_RBDCB_WPTR_REG)
-
-
-/**
- * Rx Config/Status Registers (RCSR)
- * Rx Config Reg for channel 0 (only channel used)
- *
- * Driver must initialize FH_MEM_RCSR_CHNL0_CONFIG_REG as follows for
- * normal operation (see bit fields).
- *
- * Clearing FH_MEM_RCSR_CHNL0_CONFIG_REG to 0 turns off Rx DMA.
- * Driver should poll FH_MEM_RSSR_RX_STATUS_REG for
- * FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (bit 24) before continuing.
- *
- * Bit fields:
- * 31-30: Rx DMA channel enable: '00' off/pause, '01' pause at end of frame,
- * '10' operate normally
- * 29-24: reserved
- * 23-20: # RBDs in circular buffer = 2^value; use "8" for 256 RBDs (normal),
- * min "5" for 32 RBDs, max "12" for 4096 RBDs.
- * 19-18: reserved
- * 17-16: size of each receive buffer; '00' 4K (normal), '01' 8K,
- * '10' 12K, '11' 16K.
- * 15-14: reserved
- * 13-12: IRQ destination; '00' none, '01' host driver (normal operation)
- * 11- 4: timeout for closing Rx buffer and interrupting host (units 32 usec)
- * typical value 0x10 (about 1/2 msec)
- * 3- 0: reserved
- */
-#define FH_MEM_RCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC00)
-#define FH_MEM_RCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xCC0)
-#define FH_MEM_RCSR_CHNL0 (FH_MEM_RCSR_LOWER_BOUND)
-
-#define FH_MEM_RCSR_CHNL0_CONFIG_REG (FH_MEM_RCSR_CHNL0)
-
-#define FH_RCSR_CHNL0_RX_CONFIG_RB_TIMEOUT_MSK (0x00000FF0) /* bits 4-11 */
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_MSK (0x00001000) /* bits 12 */
-#define FH_RCSR_CHNL0_RX_CONFIG_SINGLE_FRAME_MSK (0x00008000) /* bit 15 */
-#define FH_RCSR_CHNL0_RX_CONFIG_RB_SIZE_MSK (0x00030000) /* bits 16-17 */
-#define FH_RCSR_CHNL0_RX_CONFIG_RBDBC_SIZE_MSK (0x00F00000) /* bits 20-23 */
-#define FH_RCSR_CHNL0_RX_CONFIG_DMA_CHNL_EN_MSK (0xC0000000) /* bits 30-31*/
-
-#define FH_RCSR_RX_CONFIG_RBDCB_SIZE_POS (20)
-#define FH_RCSR_RX_CONFIG_REG_IRQ_RBTH_POS (4)
-#define RX_RB_TIMEOUT (0x10)
-
-#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_VAL (0x00000000)
-#define FH_RCSR_RX_CONFIG_CHNL_EN_PAUSE_EOF_VAL (0x40000000)
-#define FH_RCSR_RX_CONFIG_CHNL_EN_ENABLE_VAL (0x80000000)
-
-#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_4K (0x00000000)
-#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_8K (0x00010000)
-#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_12K (0x00020000)
-#define FH_RCSR_RX_CONFIG_REG_VAL_RB_SIZE_16K (0x00030000)
-
-#define FH_RCSR_CHNL0_RX_IGNORE_RXF_EMPTY (0x00000004)
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_NO_INT_VAL (0x00000000)
-#define FH_RCSR_CHNL0_RX_CONFIG_IRQ_DEST_INT_HOST_VAL (0x00001000)
-
-#define FH_RSCSR_FRAME_SIZE_MSK (0x00003FFF) /* bits 0-13 */
-
-/**
- * Rx Shared Status Registers (RSSR)
- *
- * After stopping Rx DMA channel (writing 0 to
- * FH_MEM_RCSR_CHNL0_CONFIG_REG), driver must poll
- * FH_MEM_RSSR_RX_STATUS_REG until Rx channel is idle.
- *
- * Bit fields:
- * 24: 1 = Channel 0 is idle
- *
- * FH_MEM_RSSR_SHARED_CTRL_REG and FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV
- * contain default values that should not be altered by the driver.
- */
-#define FH_MEM_RSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xC40)
-#define FH_MEM_RSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
-
-#define FH_MEM_RSSR_SHARED_CTRL_REG (FH_MEM_RSSR_LOWER_BOUND)
-#define FH_MEM_RSSR_RX_STATUS_REG (FH_MEM_RSSR_LOWER_BOUND + 0x004)
-#define FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV\
- (FH_MEM_RSSR_LOWER_BOUND + 0x008)
-
-#define FH_RSSR_CHNL0_RX_STATUS_CHNL_IDLE (0x01000000)
-
-#define FH_MEM_TFDIB_REG1_ADDR_BITSHIFT 28
-
-/* TFDB Area - TFDs buffer table */
-#define FH_MEM_TFDIB_DRAM_ADDR_LSB_MSK (0xFFFFFFFF)
-#define FH_TFDIB_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x900)
-#define FH_TFDIB_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x958)
-#define FH_TFDIB_CTRL0_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl))
-#define FH_TFDIB_CTRL1_REG(_chnl) (FH_TFDIB_LOWER_BOUND + 0x8 * (_chnl) + 0x4)
-
-/**
- * Transmit DMA Channel Control/Status Registers (TCSR)
- *
- * 4965 has one configuration register for each of 8 Tx DMA/FIFO channels
- * supported in hardware (don't confuse these with the 16 Tx queues in DRAM,
- * which feed the DMA/FIFO channels); config regs are separated by 0x20 bytes.
- *
- * To use a Tx DMA channel, driver must initialize its
- * FH_TCSR_CHNL_TX_CONFIG_REG(chnl) with:
- *
- * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
- * FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE_VAL
- *
- * All other bits should be 0.
- *
- * Bit fields:
- * 31-30: Tx DMA channel enable: '00' off/pause, '01' pause at end of frame,
- * '10' operate normally
- * 29- 4: Reserved, set to "0"
- * 3: Enable internal DMA requests (1, normal operation), disable (0)
- * 2- 0: Reserved, set to "0"
- */
-#define FH_TCSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xD00)
-#define FH_TCSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xE60)
-
-/* Find Control/Status reg for given Tx DMA/FIFO channel */
-#define FH49_TCSR_CHNL_NUM (7)
-#define FH50_TCSR_CHNL_NUM (8)
-
-/* TCSR: tx_config register values */
-#define FH_TCSR_CHNL_TX_CONFIG_REG(_chnl) \
- (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl))
-#define FH_TCSR_CHNL_TX_CREDIT_REG(_chnl) \
- (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x4)
-#define FH_TCSR_CHNL_TX_BUF_STS_REG(_chnl) \
- (FH_TCSR_LOWER_BOUND + 0x20 * (_chnl) + 0x8)
-
-#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_TXF (0x00000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_MSG_MODE_DRV (0x00000001)
-
-#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_DISABLE (0x00000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE (0x00000008)
-
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_NOINT (0x00000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_ENDTFD (0x00100000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_HOST_IFTFD (0x00200000)
-
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_NOINT (0x00000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_ENDTFD (0x00400000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_CIRQ_RTC_IFTFD (0x00800000)
-
-#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE (0x00000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_PAUSE_EOF (0x40000000)
-#define FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE (0x80000000)
-
-#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_EMPTY (0x00000000)
-#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_WAIT (0x00002000)
-#define FH_TCSR_CHNL_TX_BUF_STS_REG_VAL_TFDB_VALID (0x00000003)
-
-#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_NUM (20)
-#define FH_TCSR_CHNL_TX_BUF_STS_REG_POS_TB_IDX (12)
-
-/**
- * Tx Shared Status Registers (TSSR)
- *
- * After stopping Tx DMA channel (writing 0 to
- * FH_TCSR_CHNL_TX_CONFIG_REG(chnl)), driver must poll
- * FH_TSSR_TX_STATUS_REG until selected Tx channel is idle
- * (channel's buffers empty | no pending requests).
- *
- * Bit fields:
- * 31-24: 1 = Channel buffers empty (channel 7:0)
- * 23-16: 1 = No pending requests (channel 7:0)
- */
-#define FH_TSSR_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0xEA0)
-#define FH_TSSR_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0xEC0)
-
-#define FH_TSSR_TX_STATUS_REG (FH_TSSR_LOWER_BOUND + 0x010)
-
-/**
- * Bit fields for TSSR(Tx Shared Status & Control) error status register:
- * 31: Indicates an address error when accessed to internal memory
- * uCode/driver must write "1" in order to clear this flag
- * 30: Indicates that Host did not send the expected number of dwords to FH
- * uCode/driver must write "1" in order to clear this flag
- * 16-9:Each status bit is for one channel. Indicates that an (Error) ActDMA
- * command was received from the scheduler while the TRB was already full
- * with previous command
- * uCode/driver must write "1" in order to clear this flag
- * 7-0: Each status bit indicates a channel's TxCredit error. When an error
- * bit is set, it indicates that the FH has received a full indication
- * from the RTC TxFIFO and the current value of the TxCredit counter was
- * not equal to zero. This mean that the credit mechanism was not
- * synchronized to the TxFIFO status
- * uCode/driver must write "1" in order to clear this flag
- */
-#define FH_TSSR_TX_ERROR_REG (FH_TSSR_LOWER_BOUND + 0x018)
-
-#define FH_TSSR_TX_STATUS_REG_MSK_CHNL_IDLE(_chnl) ((1 << (_chnl)) << 16)
-
-/* Tx service channels */
-#define FH_SRVC_CHNL (9)
-#define FH_SRVC_LOWER_BOUND (FH_MEM_LOWER_BOUND + 0x9C8)
-#define FH_SRVC_UPPER_BOUND (FH_MEM_LOWER_BOUND + 0x9D0)
-#define FH_SRVC_CHNL_SRAM_ADDR_REG(_chnl) \
- (FH_SRVC_LOWER_BOUND + ((_chnl) - 9) * 0x4)
-
-#define FH_TX_CHICKEN_BITS_REG (FH_MEM_LOWER_BOUND + 0xE98)
-/* Instruct FH to increment the retry count of a packet when
- * it is brought from the memory to TX-FIFO
- */
-#define FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN (0x00000002)
-
-#define RX_QUEUE_SIZE 256
-#define RX_QUEUE_MASK 255
-#define RX_QUEUE_SIZE_LOG 8
-
-/*
- * RX related structures and functions
- */
-#define RX_FREE_BUFFERS 64
-#define RX_LOW_WATERMARK 8
-
-/* Size of one Rx buffer in host DRAM */
-#define IWL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */
-#define IWL_RX_BUF_SIZE_4K (4 * 1024)
-#define IWL_RX_BUF_SIZE_8K (8 * 1024)
-
-/**
- * struct iwl_rb_status - reseve buffer status
- * host memory mapped FH registers
- * @closed_rb_num [0:11] - Indicates the index of the RB which was closed
- * @closed_fr_num [0:11] - Indicates the index of the RX Frame which was closed
- * @finished_rb_num [0:11] - Indicates the index of the current RB
- * in which the last frame was written to
- * @finished_fr_num [0:11] - Indicates the index of the RX Frame
- * which was transferred
- */
-struct iwl_rb_status {
- __le16 closed_rb_num;
- __le16 closed_fr_num;
- __le16 finished_rb_num;
- __le16 finished_fr_nam;
- __le32 __unused; /* 3945 only */
-} __packed;
-
-
-#define TFD_QUEUE_SIZE_MAX (256)
-#define TFD_QUEUE_SIZE_BC_DUP (64)
-#define TFD_QUEUE_BC_SIZE (TFD_QUEUE_SIZE_MAX + TFD_QUEUE_SIZE_BC_DUP)
-#define IWL_TX_DMA_MASK DMA_BIT_MASK(36)
-#define IWL_NUM_OF_TBS 20
-
-static inline u8 iwl_legacy_get_dma_hi_addr(dma_addr_t addr)
-{
- return (sizeof(addr) > sizeof(u32) ? (addr >> 16) >> 16 : 0) & 0xF;
-}
-/**
- * struct iwl_tfd_tb transmit buffer descriptor within transmit frame descriptor
- *
- * This structure contains dma address and length of transmission address
- *
- * @lo: low [31:0] portion of the dma address of TX buffer
- * every even is unaligned on 16 bit boundary
- * @hi_n_len 0-3 [35:32] portion of dma
- * 4-15 length of the tx buffer
- */
-struct iwl_tfd_tb {
- __le32 lo;
- __le16 hi_n_len;
-} __packed;
-
-/**
- * struct iwl_tfd
- *
- * Transmit Frame Descriptor (TFD)
- *
- * @ __reserved1[3] reserved
- * @ num_tbs 0-4 number of active tbs
- * 5 reserved
- * 6-7 padding (not used)
- * @ tbs[20] transmit frame buffer descriptors
- * @ __pad padding
- *
- * Each Tx queue uses a circular buffer of 256 TFDs stored in host DRAM.
- * Both driver and device share these circular buffers, each of which must be
- * contiguous 256 TFDs x 128 bytes-per-TFD = 32 KBytes
- *
- * Driver must indicate the physical address of the base of each
- * circular buffer via the FH_MEM_CBBC_QUEUE registers.
- *
- * Each TFD contains pointer/size information for up to 20 data buffers
- * in host DRAM. These buffers collectively contain the (one) frame described
- * by the TFD. Each buffer must be a single contiguous block of memory within
- * itself, but buffers may be scattered in host DRAM. Each buffer has max size
- * of (4K - 4). The concatenates all of a TFD's buffers into a single
- * Tx frame, up to 8 KBytes in size.
- *
- * A maximum of 255 (not 256!) TFDs may be on a queue waiting for Tx.
- */
-struct iwl_tfd {
- u8 __reserved1[3];
- u8 num_tbs;
- struct iwl_tfd_tb tbs[IWL_NUM_OF_TBS];
- __le32 __pad;
-} __packed;
-
-/* Keep Warm Size */
-#define IWL_KW_SIZE 0x1000 /* 4k */
-
-#endif /* !__iwl_legacy_fh_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-hcmd.c b/drivers/net/wireless/iwlegacy/iwl-hcmd.c
deleted file mode 100644
index ce1fc9f..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-hcmd.c
+++ /dev/null
@@ -1,271 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <net/mac80211.h>
-
-#include "iwl-dev.h"
-#include "iwl-debug.h"
-#include "iwl-eeprom.h"
-#include "iwl-core.h"
-
-
-const char *iwl_legacy_get_cmd_string(u8 cmd)
-{
- switch (cmd) {
- IWL_CMD(REPLY_ALIVE);
- IWL_CMD(REPLY_ERROR);
- IWL_CMD(REPLY_RXON);
- IWL_CMD(REPLY_RXON_ASSOC);
- IWL_CMD(REPLY_QOS_PARAM);
- IWL_CMD(REPLY_RXON_TIMING);
- IWL_CMD(REPLY_ADD_STA);
- IWL_CMD(REPLY_REMOVE_STA);
- IWL_CMD(REPLY_WEPKEY);
- IWL_CMD(REPLY_3945_RX);
- IWL_CMD(REPLY_TX);
- IWL_CMD(REPLY_RATE_SCALE);
- IWL_CMD(REPLY_LEDS_CMD);
- IWL_CMD(REPLY_TX_LINK_QUALITY_CMD);
- IWL_CMD(REPLY_CHANNEL_SWITCH);
- IWL_CMD(CHANNEL_SWITCH_NOTIFICATION);
- IWL_CMD(REPLY_SPECTRUM_MEASUREMENT_CMD);
- IWL_CMD(SPECTRUM_MEASURE_NOTIFICATION);
- IWL_CMD(POWER_TABLE_CMD);
- IWL_CMD(PM_SLEEP_NOTIFICATION);
- IWL_CMD(PM_DEBUG_STATISTIC_NOTIFIC);
- IWL_CMD(REPLY_SCAN_CMD);
- IWL_CMD(REPLY_SCAN_ABORT_CMD);
- IWL_CMD(SCAN_START_NOTIFICATION);
- IWL_CMD(SCAN_RESULTS_NOTIFICATION);
- IWL_CMD(SCAN_COMPLETE_NOTIFICATION);
- IWL_CMD(BEACON_NOTIFICATION);
- IWL_CMD(REPLY_TX_BEACON);
- IWL_CMD(REPLY_TX_PWR_TABLE_CMD);
- IWL_CMD(REPLY_BT_CONFIG);
- IWL_CMD(REPLY_STATISTICS_CMD);
- IWL_CMD(STATISTICS_NOTIFICATION);
- IWL_CMD(CARD_STATE_NOTIFICATION);
- IWL_CMD(MISSED_BEACONS_NOTIFICATION);
- IWL_CMD(REPLY_CT_KILL_CONFIG_CMD);
- IWL_CMD(SENSITIVITY_CMD);
- IWL_CMD(REPLY_PHY_CALIBRATION_CMD);
- IWL_CMD(REPLY_RX_PHY_CMD);
- IWL_CMD(REPLY_RX_MPDU_CMD);
- IWL_CMD(REPLY_RX);
- IWL_CMD(REPLY_COMPRESSED_BA);
- default:
- return "UNKNOWN";
-
- }
-}
-EXPORT_SYMBOL(iwl_legacy_get_cmd_string);
-
-#define HOST_COMPLETE_TIMEOUT (HZ / 2)
-
-static void iwl_legacy_generic_cmd_callback(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt)
-{
- if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from %s (0x%08X)\n",
- iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
- return;
- }
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- switch (cmd->hdr.cmd) {
- case REPLY_TX_LINK_QUALITY_CMD:
- case SENSITIVITY_CMD:
- IWL_DEBUG_HC_DUMP(priv, "back from %s (0x%08X)\n",
- iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
- break;
- default:
- IWL_DEBUG_HC(priv, "back from %s (0x%08X)\n",
- iwl_legacy_get_cmd_string(cmd->hdr.cmd), pkt->hdr.flags);
- }
-#endif
-}
-
-static int
-iwl_legacy_send_cmd_async(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- int ret;
-
- BUG_ON(!(cmd->flags & CMD_ASYNC));
-
- /* An asynchronous command can not expect an SKB to be set. */
- BUG_ON(cmd->flags & CMD_WANT_SKB);
-
- /* Assign a generic callback if one is not provided */
- if (!cmd->callback)
- cmd->callback = iwl_legacy_generic_cmd_callback;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EBUSY;
-
- ret = iwl_legacy_enqueue_hcmd(priv, cmd);
- if (ret < 0) {
- IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
- iwl_legacy_get_cmd_string(cmd->id), ret);
- return ret;
- }
- return 0;
-}
-
-int iwl_legacy_send_cmd_sync(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- int cmd_idx;
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- BUG_ON(cmd->flags & CMD_ASYNC);
-
- /* A synchronous command can not have a callback set. */
- BUG_ON(cmd->callback);
-
- IWL_DEBUG_INFO(priv, "Attempting to send sync command %s\n",
- iwl_legacy_get_cmd_string(cmd->id));
-
- set_bit(STATUS_HCMD_ACTIVE, &priv->status);
- IWL_DEBUG_INFO(priv, "Setting HCMD_ACTIVE for command %s\n",
- iwl_legacy_get_cmd_string(cmd->id));
-
- cmd_idx = iwl_legacy_enqueue_hcmd(priv, cmd);
- if (cmd_idx < 0) {
- ret = cmd_idx;
- IWL_ERR(priv, "Error sending %s: enqueue_hcmd failed: %d\n",
- iwl_legacy_get_cmd_string(cmd->id), ret);
- goto out;
- }
-
- ret = wait_event_timeout(priv->wait_command_queue,
- !test_bit(STATUS_HCMD_ACTIVE, &priv->status),
- HOST_COMPLETE_TIMEOUT);
- if (!ret) {
- if (test_bit(STATUS_HCMD_ACTIVE, &priv->status)) {
- IWL_ERR(priv,
- "Error sending %s: time out after %dms.\n",
- iwl_legacy_get_cmd_string(cmd->id),
- jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
-
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- IWL_DEBUG_INFO(priv,
- "Clearing HCMD_ACTIVE for command %s\n",
- iwl_legacy_get_cmd_string(cmd->id));
- ret = -ETIMEDOUT;
- goto cancel;
- }
- }
-
- if (test_bit(STATUS_RF_KILL_HW, &priv->status)) {
- IWL_ERR(priv, "Command %s aborted: RF KILL Switch\n",
- iwl_legacy_get_cmd_string(cmd->id));
- ret = -ECANCELED;
- goto fail;
- }
- if (test_bit(STATUS_FW_ERROR, &priv->status)) {
- IWL_ERR(priv, "Command %s failed: FW Error\n",
- iwl_legacy_get_cmd_string(cmd->id));
- ret = -EIO;
- goto fail;
- }
- if ((cmd->flags & CMD_WANT_SKB) && !cmd->reply_page) {
- IWL_ERR(priv, "Error: Response NULL in '%s'\n",
- iwl_legacy_get_cmd_string(cmd->id));
- ret = -EIO;
- goto cancel;
- }
-
- ret = 0;
- goto out;
-
-cancel:
- if (cmd->flags & CMD_WANT_SKB) {
- /*
- * Cancel the CMD_WANT_SKB flag for the cmd in the
- * TX cmd queue. Otherwise in case the cmd comes
- * in later, it will possibly set an invalid
- * address (cmd->meta.source).
- */
- priv->txq[priv->cmd_queue].meta[cmd_idx].flags &=
- ~CMD_WANT_SKB;
- }
-fail:
- if (cmd->reply_page) {
- iwl_legacy_free_pages(priv, cmd->reply_page);
- cmd->reply_page = 0;
- }
-out:
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_send_cmd_sync);
-
-int iwl_legacy_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- if (cmd->flags & CMD_ASYNC)
- return iwl_legacy_send_cmd_async(priv, cmd);
-
- return iwl_legacy_send_cmd_sync(priv, cmd);
-}
-EXPORT_SYMBOL(iwl_legacy_send_cmd);
-
-int
-iwl_legacy_send_cmd_pdu(struct iwl_priv *priv, u8 id, u16 len, const void *data)
-{
- struct iwl_host_cmd cmd = {
- .id = id,
- .len = len,
- .data = data,
- };
-
- return iwl_legacy_send_cmd_sync(priv, &cmd);
-}
-EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu);
-
-int iwl_legacy_send_cmd_pdu_async(struct iwl_priv *priv,
- u8 id, u16 len, const void *data,
- void (*callback)(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt))
-{
- struct iwl_host_cmd cmd = {
- .id = id,
- .len = len,
- .data = data,
- };
-
- cmd.flags |= CMD_ASYNC;
- cmd.callback = callback;
-
- return iwl_legacy_send_cmd_async(priv, &cmd);
-}
-EXPORT_SYMBOL(iwl_legacy_send_cmd_pdu_async);
diff --git a/drivers/net/wireless/iwlegacy/iwl-helpers.h b/drivers/net/wireless/iwlegacy/iwl-helpers.h
deleted file mode 100644
index 5cf23ea..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-helpers.h
+++ /dev/null
@@ -1,196 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_legacy_helpers_h__
-#define __iwl_legacy_helpers_h__
-
-#include <linux/ctype.h>
-#include <net/mac80211.h>
-
-#include "iwl-io.h"
-
-#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
-
-
-static inline struct ieee80211_conf *iwl_legacy_ieee80211_get_hw_conf(
- struct ieee80211_hw *hw)
-{
- return &hw->conf;
-}
-
-/**
- * iwl_legacy_queue_inc_wrap - increment queue index, wrap back to beginning
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
- */
-static inline int iwl_legacy_queue_inc_wrap(int index, int n_bd)
-{
- return ++index & (n_bd - 1);
-}
-
-/**
- * iwl_legacy_queue_dec_wrap - decrement queue index, wrap back to end
- * @index -- current index
- * @n_bd -- total number of entries in queue (must be power of 2)
- */
-static inline int iwl_legacy_queue_dec_wrap(int index, int n_bd)
-{
- return --index & (n_bd - 1);
-}
-
-/* TODO: Move fw_desc functions to iwl-pci.ko */
-static inline void iwl_legacy_free_fw_desc(struct pci_dev *pci_dev,
- struct fw_desc *desc)
-{
- if (desc->v_addr)
- dma_free_coherent(&pci_dev->dev, desc->len,
- desc->v_addr, desc->p_addr);
- desc->v_addr = NULL;
- desc->len = 0;
-}
-
-static inline int iwl_legacy_alloc_fw_desc(struct pci_dev *pci_dev,
- struct fw_desc *desc)
-{
- if (!desc->len) {
- desc->v_addr = NULL;
- return -EINVAL;
- }
-
- desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
- &desc->p_addr, GFP_KERNEL);
- return (desc->v_addr != NULL) ? 0 : -ENOMEM;
-}
-
-/*
- * we have 8 bits used like this:
- *
- * 7 6 5 4 3 2 1 0
- * | | | | | | | |
- * | | | | | | +-+-------- AC queue (0-3)
- * | | | | | |
- * | +-+-+-+-+------------ HW queue ID
- * |
- * +---------------------- unused
- */
-static inline void
-iwl_legacy_set_swq_id(struct iwl_tx_queue *txq, u8 ac, u8 hwq)
-{
- BUG_ON(ac > 3); /* only have 2 bits */
- BUG_ON(hwq > 31); /* only use 5 bits */
-
- txq->swq_id = (hwq << 2) | ac;
-}
-
-static inline void iwl_legacy_wake_queue(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- u8 queue = txq->swq_id;
- u8 ac = queue & 3;
- u8 hwq = (queue >> 2) & 0x1f;
-
- if (test_and_clear_bit(hwq, priv->queue_stopped))
- if (atomic_dec_return(&priv->queue_stop_count[ac]) <= 0)
- ieee80211_wake_queue(priv->hw, ac);
-}
-
-static inline void iwl_legacy_stop_queue(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- u8 queue = txq->swq_id;
- u8 ac = queue & 3;
- u8 hwq = (queue >> 2) & 0x1f;
-
- if (!test_and_set_bit(hwq, priv->queue_stopped))
- if (atomic_inc_return(&priv->queue_stop_count[ac]) > 0)
- ieee80211_stop_queue(priv->hw, ac);
-}
-
-#ifdef ieee80211_stop_queue
-#undef ieee80211_stop_queue
-#endif
-
-#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
-
-#ifdef ieee80211_wake_queue
-#undef ieee80211_wake_queue
-#endif
-
-#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
-
-static inline void iwl_legacy_disable_interrupts(struct iwl_priv *priv)
-{
- clear_bit(STATUS_INT_ENABLED, &priv->status);
-
- /* disable interrupts from uCode/NIC to host */
- iwl_write32(priv, CSR_INT_MASK, 0x00000000);
-
- /* acknowledge/clear/reset any interrupts still pending
- * from uCode or flow handler (Rx/Tx DMA) */
- iwl_write32(priv, CSR_INT, 0xffffffff);
- iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
- IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
-}
-
-static inline void iwl_legacy_enable_rfkill_int(struct iwl_priv *priv)
-{
- IWL_DEBUG_ISR(priv, "Enabling rfkill interrupt\n");
- iwl_write32(priv, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
-}
-
-static inline void iwl_legacy_enable_interrupts(struct iwl_priv *priv)
-{
- IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
- set_bit(STATUS_INT_ENABLED, &priv->status);
- iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
-}
-
-/**
- * iwl_legacy_beacon_time_mask_low - mask of lower 32 bit of beacon time
- * @priv -- pointer to iwl_priv data structure
- * @tsf_bits -- number of bits need to shift for masking)
- */
-static inline u32 iwl_legacy_beacon_time_mask_low(struct iwl_priv *priv,
- u16 tsf_bits)
-{
- return (1 << tsf_bits) - 1;
-}
-
-/**
- * iwl_legacy_beacon_time_mask_high - mask of higher 32 bit of beacon time
- * @priv -- pointer to iwl_priv data structure
- * @tsf_bits -- number of bits need to shift for masking)
- */
-static inline u32 iwl_legacy_beacon_time_mask_high(struct iwl_priv *priv,
- u16 tsf_bits)
-{
- return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
-}
-
-#endif /* __iwl_legacy_helpers_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-io.h b/drivers/net/wireless/iwlegacy/iwl-io.h
deleted file mode 100644
index 5cc5d34..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-io.h
+++ /dev/null
@@ -1,545 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_legacy_io_h__
-#define __iwl_legacy_io_h__
-
-#include <linux/io.h>
-
-#include "iwl-dev.h"
-#include "iwl-debug.h"
-#include "iwl-devtrace.h"
-
-/*
- * IO, register, and NIC memory access functions
- *
- * NOTE on naming convention and macro usage for these
- *
- * A single _ prefix before a an access function means that no state
- * check or debug information is printed when that function is called.
- *
- * A double __ prefix before an access function means that state is checked
- * and the current line number and caller function name are printed in addition
- * to any other debug output.
- *
- * The non-prefixed name is the #define that maps the caller into a
- * #define that provides the caller's name and __LINE__ to the double
- * prefix version.
- *
- * If you wish to call the function without any debug or state checking,
- * you should use the single _ prefix version (as is used by dependent IO
- * routines, for example _iwl_legacy_read_direct32 calls the non-check version of
- * _iwl_legacy_read32.)
- *
- * These declarations are *extremely* useful in quickly isolating code deltas
- * which result in misconfiguration of the hardware I/O. In combination with
- * git-bisect and the IO debug level you can quickly determine the specific
- * commit which breaks the IO sequence to the hardware.
- *
- */
-
-static inline void _iwl_legacy_write8(struct iwl_priv *priv, u32 ofs, u8 val)
-{
- trace_iwlwifi_legacy_dev_iowrite8(priv, ofs, val);
- iowrite8(val, priv->hw_base + ofs);
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline void
-__iwl_legacy_write8(const char *f, u32 l, struct iwl_priv *priv,
- u32 ofs, u8 val)
-{
- IWL_DEBUG_IO(priv, "write8(0x%08X, 0x%02X) - %s %d\n", ofs, val, f, l);
- _iwl_legacy_write8(priv, ofs, val);
-}
-#define iwl_write8(priv, ofs, val) \
- __iwl_legacy_write8(__FILE__, __LINE__, priv, ofs, val)
-#else
-#define iwl_write8(priv, ofs, val) _iwl_legacy_write8(priv, ofs, val)
-#endif
-
-
-static inline void _iwl_legacy_write32(struct iwl_priv *priv, u32 ofs, u32 val)
-{
- trace_iwlwifi_legacy_dev_iowrite32(priv, ofs, val);
- iowrite32(val, priv->hw_base + ofs);
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline void
-__iwl_legacy_write32(const char *f, u32 l, struct iwl_priv *priv,
- u32 ofs, u32 val)
-{
- IWL_DEBUG_IO(priv, "write32(0x%08X, 0x%08X) - %s %d\n", ofs, val, f, l);
- _iwl_legacy_write32(priv, ofs, val);
-}
-#define iwl_write32(priv, ofs, val) \
- __iwl_legacy_write32(__FILE__, __LINE__, priv, ofs, val)
-#else
-#define iwl_write32(priv, ofs, val) _iwl_legacy_write32(priv, ofs, val)
-#endif
-
-static inline u32 _iwl_legacy_read32(struct iwl_priv *priv, u32 ofs)
-{
- u32 val = ioread32(priv->hw_base + ofs);
- trace_iwlwifi_legacy_dev_ioread32(priv, ofs, val);
- return val;
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline u32
-__iwl_legacy_read32(char *f, u32 l, struct iwl_priv *priv, u32 ofs)
-{
- IWL_DEBUG_IO(priv, "read_direct32(0x%08X) - %s %d\n", ofs, f, l);
- return _iwl_legacy_read32(priv, ofs);
-}
-#define iwl_read32(priv, ofs) __iwl_legacy_read32(__FILE__, __LINE__, priv, ofs)
-#else
-#define iwl_read32(p, o) _iwl_legacy_read32(p, o)
-#endif
-
-#define IWL_POLL_INTERVAL 10 /* microseconds */
-static inline int
-_iwl_legacy_poll_bit(struct iwl_priv *priv, u32 addr,
- u32 bits, u32 mask, int timeout)
-{
- int t = 0;
-
- do {
- if ((_iwl_legacy_read32(priv, addr) & mask) == (bits & mask))
- return t;
- udelay(IWL_POLL_INTERVAL);
- t += IWL_POLL_INTERVAL;
- } while (t < timeout);
-
- return -ETIMEDOUT;
-}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline int __iwl_legacy_poll_bit(const char *f, u32 l,
- struct iwl_priv *priv, u32 addr,
- u32 bits, u32 mask, int timeout)
-{
- int ret = _iwl_legacy_poll_bit(priv, addr, bits, mask, timeout);
- IWL_DEBUG_IO(priv, "poll_bit(0x%08X, 0x%08X, 0x%08X) - %s- %s %d\n",
- addr, bits, mask,
- unlikely(ret == -ETIMEDOUT) ? "timeout" : "", f, l);
- return ret;
-}
-#define iwl_poll_bit(priv, addr, bits, mask, timeout) \
- __iwl_legacy_poll_bit(__FILE__, __LINE__, priv, addr, \
- bits, mask, timeout)
-#else
-#define iwl_poll_bit(p, a, b, m, t) _iwl_legacy_poll_bit(p, a, b, m, t)
-#endif
-
-static inline void _iwl_legacy_set_bit(struct iwl_priv *priv, u32 reg, u32 mask)
-{
- _iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) | mask);
-}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline void __iwl_legacy_set_bit(const char *f, u32 l,
- struct iwl_priv *priv, u32 reg, u32 mask)
-{
- u32 val = _iwl_legacy_read32(priv, reg) | mask;
- IWL_DEBUG_IO(priv, "set_bit(0x%08X, 0x%08X) = 0x%08X\n", reg,
- mask, val);
- _iwl_legacy_write32(priv, reg, val);
-}
-static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&p->reg_lock, reg_flags);
- __iwl_legacy_set_bit(__FILE__, __LINE__, p, r, m);
- spin_unlock_irqrestore(&p->reg_lock, reg_flags);
-}
-#else
-static inline void iwl_legacy_set_bit(struct iwl_priv *p, u32 r, u32 m)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&p->reg_lock, reg_flags);
- _iwl_legacy_set_bit(p, r, m);
- spin_unlock_irqrestore(&p->reg_lock, reg_flags);
-}
-#endif
-
-static inline void
-_iwl_legacy_clear_bit(struct iwl_priv *priv, u32 reg, u32 mask)
-{
- _iwl_legacy_write32(priv, reg, _iwl_legacy_read32(priv, reg) & ~mask);
-}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline void
-__iwl_legacy_clear_bit(const char *f, u32 l,
- struct iwl_priv *priv, u32 reg, u32 mask)
-{
- u32 val = _iwl_legacy_read32(priv, reg) & ~mask;
- IWL_DEBUG_IO(priv, "clear_bit(0x%08X, 0x%08X) = 0x%08X\n", reg, mask, val);
- _iwl_legacy_write32(priv, reg, val);
-}
-static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&p->reg_lock, reg_flags);
- __iwl_legacy_clear_bit(__FILE__, __LINE__, p, r, m);
- spin_unlock_irqrestore(&p->reg_lock, reg_flags);
-}
-#else
-static inline void iwl_legacy_clear_bit(struct iwl_priv *p, u32 r, u32 m)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&p->reg_lock, reg_flags);
- _iwl_legacy_clear_bit(p, r, m);
- spin_unlock_irqrestore(&p->reg_lock, reg_flags);
-}
-#endif
-
-static inline int _iwl_legacy_grab_nic_access(struct iwl_priv *priv)
-{
- int ret;
- u32 val;
-
- /* this bit wakes up the NIC */
- _iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
-
- /*
- * These bits say the device is running, and should keep running for
- * at least a short while (at least as long as MAC_ACCESS_REQ stays 1),
- * but they do not indicate that embedded SRAM is restored yet;
- * 3945 and 4965 have volatile SRAM, and must save/restore contents
- * to/from host DRAM when sleeping/waking for power-saving.
- * Each direction takes approximately 1/4 millisecond; with this
- * overhead, it's a good idea to grab and hold MAC_ACCESS_REQUEST if a
- * series of register accesses are expected (e.g. reading Event Log),
- * to keep device from sleeping.
- *
- * CSR_UCODE_DRV_GP1 register bit MAC_SLEEP == 0 indicates that
- * SRAM is okay/restored. We don't check that here because this call
- * is just for hardware register access; but GP1 MAC_SLEEP check is a
- * good idea before accessing 3945/4965 SRAM (e.g. reading Event Log).
- *
- */
- ret = _iwl_legacy_poll_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN,
- (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY |
- CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), 15000);
- if (ret < 0) {
- val = _iwl_legacy_read32(priv, CSR_GP_CNTRL);
- IWL_ERR(priv,
- "MAC is in deep sleep!. CSR_GP_CNTRL = 0x%08X\n", val);
- _iwl_legacy_write32(priv, CSR_RESET,
- CSR_RESET_REG_FLAG_FORCE_NMI);
- return -EIO;
- }
-
- return 0;
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline int __iwl_legacy_grab_nic_access(const char *f, u32 l,
- struct iwl_priv *priv)
-{
- IWL_DEBUG_IO(priv, "grabbing nic access - %s %d\n", f, l);
- return _iwl_legacy_grab_nic_access(priv);
-}
-#define iwl_grab_nic_access(priv) \
- __iwl_legacy_grab_nic_access(__FILE__, __LINE__, priv)
-#else
-#define iwl_grab_nic_access(priv) \
- _iwl_legacy_grab_nic_access(priv)
-#endif
-
-static inline void _iwl_legacy_release_nic_access(struct iwl_priv *priv)
-{
- _iwl_legacy_clear_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
-}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline void __iwl_legacy_release_nic_access(const char *f, u32 l,
- struct iwl_priv *priv)
-{
-
- IWL_DEBUG_IO(priv, "releasing nic access - %s %d\n", f, l);
- _iwl_legacy_release_nic_access(priv);
-}
-#define iwl_release_nic_access(priv) \
- __iwl_legacy_release_nic_access(__FILE__, __LINE__, priv)
-#else
-#define iwl_release_nic_access(priv) \
- _iwl_legacy_release_nic_access(priv)
-#endif
-
-static inline u32 _iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
-{
- return _iwl_legacy_read32(priv, reg);
-}
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline u32 __iwl_legacy_read_direct32(const char *f, u32 l,
- struct iwl_priv *priv, u32 reg)
-{
- u32 value = _iwl_legacy_read_direct32(priv, reg);
- IWL_DEBUG_IO(priv,
- "read_direct32(0x%4X) = 0x%08x - %s %d\n", reg, value,
- f, l);
- return value;
-}
-static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
-{
- u32 value;
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- value = __iwl_legacy_read_direct32(__FILE__, __LINE__, priv, reg);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
- return value;
-}
-
-#else
-static inline u32 iwl_legacy_read_direct32(struct iwl_priv *priv, u32 reg)
-{
- u32 value;
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- value = _iwl_legacy_read_direct32(priv, reg);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
- return value;
-
-}
-#endif
-
-static inline void _iwl_legacy_write_direct32(struct iwl_priv *priv,
- u32 reg, u32 value)
-{
- _iwl_legacy_write32(priv, reg, value);
-}
-static inline void
-iwl_legacy_write_direct32(struct iwl_priv *priv, u32 reg, u32 value)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- if (!iwl_grab_nic_access(priv)) {
- _iwl_legacy_write_direct32(priv, reg, value);
- iwl_release_nic_access(priv);
- }
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-static inline void iwl_legacy_write_reg_buf(struct iwl_priv *priv,
- u32 reg, u32 len, u32 *values)
-{
- u32 count = sizeof(u32);
-
- if ((priv != NULL) && (values != NULL)) {
- for (; 0 < len; len -= count, reg += count, values++)
- iwl_legacy_write_direct32(priv, reg, *values);
- }
-}
-
-static inline int _iwl_legacy_poll_direct_bit(struct iwl_priv *priv, u32 addr,
- u32 mask, int timeout)
-{
- int t = 0;
-
- do {
- if ((iwl_legacy_read_direct32(priv, addr) & mask) == mask)
- return t;
- udelay(IWL_POLL_INTERVAL);
- t += IWL_POLL_INTERVAL;
- } while (t < timeout);
-
- return -ETIMEDOUT;
-}
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static inline int __iwl_legacy_poll_direct_bit(const char *f, u32 l,
- struct iwl_priv *priv,
- u32 addr, u32 mask, int timeout)
-{
- int ret = _iwl_legacy_poll_direct_bit(priv, addr, mask, timeout);
-
- if (unlikely(ret == -ETIMEDOUT))
- IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) - "
- "timedout - %s %d\n", addr, mask, f, l);
- else
- IWL_DEBUG_IO(priv, "poll_direct_bit(0x%08X, 0x%08X) = 0x%08X "
- "- %s %d\n", addr, mask, ret, f, l);
- return ret;
-}
-#define iwl_poll_direct_bit(priv, addr, mask, timeout) \
-__iwl_legacy_poll_direct_bit(__FILE__, __LINE__, priv, addr, mask, timeout)
-#else
-#define iwl_poll_direct_bit _iwl_legacy_poll_direct_bit
-#endif
-
-static inline u32 _iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg)
-{
- _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_RADDR, reg | (3 << 24));
- rmb();
- return _iwl_legacy_read_direct32(priv, HBUS_TARG_PRPH_RDAT);
-}
-static inline u32 iwl_legacy_read_prph(struct iwl_priv *priv, u32 reg)
-{
- unsigned long reg_flags;
- u32 val;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- val = _iwl_legacy_read_prph(priv, reg);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
- return val;
-}
-
-static inline void _iwl_legacy_write_prph(struct iwl_priv *priv,
- u32 addr, u32 val)
-{
- _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WADDR,
- ((addr & 0x0000FFFF) | (3 << 24)));
- wmb();
- _iwl_legacy_write_direct32(priv, HBUS_TARG_PRPH_WDAT, val);
-}
-
-static inline void
-iwl_legacy_write_prph(struct iwl_priv *priv, u32 addr, u32 val)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- if (!iwl_grab_nic_access(priv)) {
- _iwl_legacy_write_prph(priv, addr, val);
- iwl_release_nic_access(priv);
- }
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-#define _iwl_legacy_set_bits_prph(priv, reg, mask) \
-_iwl_legacy_write_prph(priv, reg, (_iwl_legacy_read_prph(priv, reg) | mask))
-
-static inline void
-iwl_legacy_set_bits_prph(struct iwl_priv *priv, u32 reg, u32 mask)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- _iwl_legacy_set_bits_prph(priv, reg, mask);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-#define _iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask) \
-_iwl_legacy_write_prph(priv, reg, \
- ((_iwl_legacy_read_prph(priv, reg) & mask) | bits))
-
-static inline void iwl_legacy_set_bits_mask_prph(struct iwl_priv *priv, u32 reg,
- u32 bits, u32 mask)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- _iwl_legacy_set_bits_mask_prph(priv, reg, bits, mask);
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-static inline void iwl_legacy_clear_bits_prph(struct iwl_priv
- *priv, u32 reg, u32 mask)
-{
- unsigned long reg_flags;
- u32 val;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
- val = _iwl_legacy_read_prph(priv, reg);
- _iwl_legacy_write_prph(priv, reg, (val & ~mask));
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-static inline u32 iwl_legacy_read_targ_mem(struct iwl_priv *priv, u32 addr)
-{
- unsigned long reg_flags;
- u32 value;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- iwl_grab_nic_access(priv);
-
- _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR, addr);
- rmb();
- value = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
-
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
- return value;
-}
-
-static inline void
-iwl_legacy_write_targ_mem(struct iwl_priv *priv, u32 addr, u32 val)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- if (!iwl_grab_nic_access(priv)) {
- _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
- wmb();
- _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WDAT, val);
- iwl_release_nic_access(priv);
- }
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-
-static inline void
-iwl_legacy_write_targ_mem_buf(struct iwl_priv *priv, u32 addr,
- u32 len, u32 *values)
-{
- unsigned long reg_flags;
-
- spin_lock_irqsave(&priv->reg_lock, reg_flags);
- if (!iwl_grab_nic_access(priv)) {
- _iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_WADDR, addr);
- wmb();
- for (; 0 < len; len -= sizeof(u32), values++)
- _iwl_legacy_write_direct32(priv,
- HBUS_TARG_MEM_WDAT, *values);
-
- iwl_release_nic_access(priv);
- }
- spin_unlock_irqrestore(&priv->reg_lock, reg_flags);
-}
-#endif
diff --git a/drivers/net/wireless/iwlegacy/iwl-led.c b/drivers/net/wireless/iwlegacy/iwl-led.c
deleted file mode 100644
index dc568a4..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-led.c
+++ /dev/null
@@ -1,205 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <net/mac80211.h>
-#include <linux/etherdevice.h>
-#include <asm/unaligned.h>
-
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-
-/* default: IWL_LED_BLINK(0) using blinking index table */
-static int led_mode;
-module_param(led_mode, int, S_IRUGO);
-MODULE_PARM_DESC(led_mode, "0=system default, "
- "1=On(RF On)/Off(RF Off), 2=blinking");
-
-/* Throughput OFF time(ms) ON time (ms)
- * >300 25 25
- * >200 to 300 40 40
- * >100 to 200 55 55
- * >70 to 100 65 65
- * >50 to 70 75 75
- * >20 to 50 85 85
- * >10 to 20 95 95
- * >5 to 10 110 110
- * >1 to 5 130 130
- * >0 to 1 167 167
- * <=0 SOLID ON
- */
-static const struct ieee80211_tpt_blink iwl_blink[] = {
- { .throughput = 0, .blink_time = 334 },
- { .throughput = 1 * 1024 - 1, .blink_time = 260 },
- { .throughput = 5 * 1024 - 1, .blink_time = 220 },
- { .throughput = 10 * 1024 - 1, .blink_time = 190 },
- { .throughput = 20 * 1024 - 1, .blink_time = 170 },
- { .throughput = 50 * 1024 - 1, .blink_time = 150 },
- { .throughput = 70 * 1024 - 1, .blink_time = 130 },
- { .throughput = 100 * 1024 - 1, .blink_time = 110 },
- { .throughput = 200 * 1024 - 1, .blink_time = 80 },
- { .throughput = 300 * 1024 - 1, .blink_time = 50 },
-};
-
-/*
- * Adjust led blink rate to compensate on a MAC Clock difference on every HW
- * Led blink rate analysis showed an average deviation of 0% on 3945,
- * 5% on 4965 HW.
- * Need to compensate on the led on/off time per HW according to the deviation
- * to achieve the desired led frequency
- * The calculation is: (100-averageDeviation)/100 * blinkTime
- * For code efficiency the calculation will be:
- * compensation = (100 - averageDeviation) * 64 / 100
- * NewBlinkTime = (compensation * BlinkTime) / 64
- */
-static inline u8 iwl_legacy_blink_compensation(struct iwl_priv *priv,
- u8 time, u16 compensation)
-{
- if (!compensation) {
- IWL_ERR(priv, "undefined blink compensation: "
- "use pre-defined blinking time\n");
- return time;
- }
-
- return (u8)((time * compensation) >> 6);
-}
-
-/* Set led pattern command */
-static int iwl_legacy_led_cmd(struct iwl_priv *priv,
- unsigned long on,
- unsigned long off)
-{
- struct iwl_led_cmd led_cmd = {
- .id = IWL_LED_LINK,
- .interval = IWL_DEF_LED_INTRVL
- };
- int ret;
-
- if (!test_bit(STATUS_READY, &priv->status))
- return -EBUSY;
-
- if (priv->blink_on == on && priv->blink_off == off)
- return 0;
-
- if (off == 0) {
- /* led is SOLID_ON */
- on = IWL_LED_SOLID;
- }
-
- IWL_DEBUG_LED(priv, "Led blink time compensation=%u\n",
- priv->cfg->base_params->led_compensation);
- led_cmd.on = iwl_legacy_blink_compensation(priv, on,
- priv->cfg->base_params->led_compensation);
- led_cmd.off = iwl_legacy_blink_compensation(priv, off,
- priv->cfg->base_params->led_compensation);
-
- ret = priv->cfg->ops->led->cmd(priv, &led_cmd);
- if (!ret) {
- priv->blink_on = on;
- priv->blink_off = off;
- }
- return ret;
-}
-
-static void iwl_legacy_led_brightness_set(struct led_classdev *led_cdev,
- enum led_brightness brightness)
-{
- struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
- unsigned long on = 0;
-
- if (brightness > 0)
- on = IWL_LED_SOLID;
-
- iwl_legacy_led_cmd(priv, on, 0);
-}
-
-static int iwl_legacy_led_blink_set(struct led_classdev *led_cdev,
- unsigned long *delay_on,
- unsigned long *delay_off)
-{
- struct iwl_priv *priv = container_of(led_cdev, struct iwl_priv, led);
-
- return iwl_legacy_led_cmd(priv, *delay_on, *delay_off);
-}
-
-void iwl_legacy_leds_init(struct iwl_priv *priv)
-{
- int mode = led_mode;
- int ret;
-
- if (mode == IWL_LED_DEFAULT)
- mode = priv->cfg->led_mode;
-
- priv->led.name = kasprintf(GFP_KERNEL, "%s-led",
- wiphy_name(priv->hw->wiphy));
- priv->led.brightness_set = iwl_legacy_led_brightness_set;
- priv->led.blink_set = iwl_legacy_led_blink_set;
- priv->led.max_brightness = 1;
-
- switch (mode) {
- case IWL_LED_DEFAULT:
- WARN_ON(1);
- break;
- case IWL_LED_BLINK:
- priv->led.default_trigger =
- ieee80211_create_tpt_led_trigger(priv->hw,
- IEEE80211_TPT_LEDTRIG_FL_CONNECTED,
- iwl_blink, ARRAY_SIZE(iwl_blink));
- break;
- case IWL_LED_RF_STATE:
- priv->led.default_trigger =
- ieee80211_get_radio_led_name(priv->hw);
- break;
- }
-
- ret = led_classdev_register(&priv->pci_dev->dev, &priv->led);
- if (ret) {
- kfree(priv->led.name);
- return;
- }
-
- priv->led_registered = true;
-}
-EXPORT_SYMBOL(iwl_legacy_leds_init);
-
-void iwl_legacy_leds_exit(struct iwl_priv *priv)
-{
- if (!priv->led_registered)
- return;
-
- led_classdev_unregister(&priv->led);
- kfree(priv->led.name);
-}
-EXPORT_SYMBOL(iwl_legacy_leds_exit);
diff --git a/drivers/net/wireless/iwlegacy/iwl-led.h b/drivers/net/wireless/iwlegacy/iwl-led.h
deleted file mode 100644
index f0791f7..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-led.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_legacy_leds_h__
-#define __iwl_legacy_leds_h__
-
-
-struct iwl_priv;
-
-#define IWL_LED_SOLID 11
-#define IWL_DEF_LED_INTRVL cpu_to_le32(1000)
-
-#define IWL_LED_ACTIVITY (0<<1)
-#define IWL_LED_LINK (1<<1)
-
-/*
- * LED mode
- * IWL_LED_DEFAULT: use device default
- * IWL_LED_RF_STATE: turn LED on/off based on RF state
- * LED ON = RF ON
- * LED OFF = RF OFF
- * IWL_LED_BLINK: adjust led blink rate based on blink table
- */
-enum iwl_led_mode {
- IWL_LED_DEFAULT,
- IWL_LED_RF_STATE,
- IWL_LED_BLINK,
-};
-
-void iwl_legacy_leds_init(struct iwl_priv *priv);
-void iwl_legacy_leds_exit(struct iwl_priv *priv);
-
-#endif /* __iwl_legacy_leds_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h b/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h
deleted file mode 100644
index 38647e4..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-legacy-rs.h
+++ /dev/null
@@ -1,456 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#ifndef __iwl_legacy_rs_h__
-#define __iwl_legacy_rs_h__
-
-struct iwl_rate_info {
- u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
- u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
- u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
- u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
- u8 prev_ieee; /* previous rate in IEEE speeds */
- u8 next_ieee; /* next rate in IEEE speeds */
- u8 prev_rs; /* previous rate used in rs algo */
- u8 next_rs; /* next rate used in rs algo */
- u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
- u8 next_rs_tgg; /* next rate used in TGG rs algo */
-};
-
-struct iwl3945_rate_info {
- u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
- u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
- u8 prev_ieee; /* previous rate in IEEE speeds */
- u8 next_ieee; /* next rate in IEEE speeds */
- u8 prev_rs; /* previous rate used in rs algo */
- u8 next_rs; /* next rate used in rs algo */
- u8 prev_rs_tgg; /* previous rate used in TGG rs algo */
- u8 next_rs_tgg; /* next rate used in TGG rs algo */
- u8 table_rs_index; /* index in rate scale table cmd */
- u8 prev_table_rs; /* prev in rate table cmd */
-};
-
-
-/*
- * These serve as indexes into
- * struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT];
- */
-enum {
- IWL_RATE_1M_INDEX = 0,
- IWL_RATE_2M_INDEX,
- IWL_RATE_5M_INDEX,
- IWL_RATE_11M_INDEX,
- IWL_RATE_6M_INDEX,
- IWL_RATE_9M_INDEX,
- IWL_RATE_12M_INDEX,
- IWL_RATE_18M_INDEX,
- IWL_RATE_24M_INDEX,
- IWL_RATE_36M_INDEX,
- IWL_RATE_48M_INDEX,
- IWL_RATE_54M_INDEX,
- IWL_RATE_60M_INDEX,
- IWL_RATE_COUNT,
- IWL_RATE_COUNT_LEGACY = IWL_RATE_COUNT - 1, /* Excluding 60M */
- IWL_RATE_COUNT_3945 = IWL_RATE_COUNT - 1,
- IWL_RATE_INVM_INDEX = IWL_RATE_COUNT,
- IWL_RATE_INVALID = IWL_RATE_COUNT,
-};
-
-enum {
- IWL_RATE_6M_INDEX_TABLE = 0,
- IWL_RATE_9M_INDEX_TABLE,
- IWL_RATE_12M_INDEX_TABLE,
- IWL_RATE_18M_INDEX_TABLE,
- IWL_RATE_24M_INDEX_TABLE,
- IWL_RATE_36M_INDEX_TABLE,
- IWL_RATE_48M_INDEX_TABLE,
- IWL_RATE_54M_INDEX_TABLE,
- IWL_RATE_1M_INDEX_TABLE,
- IWL_RATE_2M_INDEX_TABLE,
- IWL_RATE_5M_INDEX_TABLE,
- IWL_RATE_11M_INDEX_TABLE,
- IWL_RATE_INVM_INDEX_TABLE = IWL_RATE_INVM_INDEX - 1,
-};
-
-enum {
- IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
- IWL39_LAST_OFDM_RATE = IWL_RATE_54M_INDEX,
- IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
- IWL_FIRST_CCK_RATE = IWL_RATE_1M_INDEX,
- IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
-};
-
-/* #define vs. enum to keep from defaulting to 'large integer' */
-#define IWL_RATE_6M_MASK (1 << IWL_RATE_6M_INDEX)
-#define IWL_RATE_9M_MASK (1 << IWL_RATE_9M_INDEX)
-#define IWL_RATE_12M_MASK (1 << IWL_RATE_12M_INDEX)
-#define IWL_RATE_18M_MASK (1 << IWL_RATE_18M_INDEX)
-#define IWL_RATE_24M_MASK (1 << IWL_RATE_24M_INDEX)
-#define IWL_RATE_36M_MASK (1 << IWL_RATE_36M_INDEX)
-#define IWL_RATE_48M_MASK (1 << IWL_RATE_48M_INDEX)
-#define IWL_RATE_54M_MASK (1 << IWL_RATE_54M_INDEX)
-#define IWL_RATE_60M_MASK (1 << IWL_RATE_60M_INDEX)
-#define IWL_RATE_1M_MASK (1 << IWL_RATE_1M_INDEX)
-#define IWL_RATE_2M_MASK (1 << IWL_RATE_2M_INDEX)
-#define IWL_RATE_5M_MASK (1 << IWL_RATE_5M_INDEX)
-#define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX)
-
-/* uCode API values for legacy bit rates, both OFDM and CCK */
-enum {
- IWL_RATE_6M_PLCP = 13,
- IWL_RATE_9M_PLCP = 15,
- IWL_RATE_12M_PLCP = 5,
- IWL_RATE_18M_PLCP = 7,
- IWL_RATE_24M_PLCP = 9,
- IWL_RATE_36M_PLCP = 11,
- IWL_RATE_48M_PLCP = 1,
- IWL_RATE_54M_PLCP = 3,
- IWL_RATE_60M_PLCP = 3,/*FIXME:RS:should be removed*/
- IWL_RATE_1M_PLCP = 10,
- IWL_RATE_2M_PLCP = 20,
- IWL_RATE_5M_PLCP = 55,
- IWL_RATE_11M_PLCP = 110,
- /*FIXME:RS:add IWL_RATE_LEGACY_INVM_PLCP = 0,*/
-};
-
-/* uCode API values for OFDM high-throughput (HT) bit rates */
-enum {
- IWL_RATE_SISO_6M_PLCP = 0,
- IWL_RATE_SISO_12M_PLCP = 1,
- IWL_RATE_SISO_18M_PLCP = 2,
- IWL_RATE_SISO_24M_PLCP = 3,
- IWL_RATE_SISO_36M_PLCP = 4,
- IWL_RATE_SISO_48M_PLCP = 5,
- IWL_RATE_SISO_54M_PLCP = 6,
- IWL_RATE_SISO_60M_PLCP = 7,
- IWL_RATE_MIMO2_6M_PLCP = 0x8,
- IWL_RATE_MIMO2_12M_PLCP = 0x9,
- IWL_RATE_MIMO2_18M_PLCP = 0xa,
- IWL_RATE_MIMO2_24M_PLCP = 0xb,
- IWL_RATE_MIMO2_36M_PLCP = 0xc,
- IWL_RATE_MIMO2_48M_PLCP = 0xd,
- IWL_RATE_MIMO2_54M_PLCP = 0xe,
- IWL_RATE_MIMO2_60M_PLCP = 0xf,
- IWL_RATE_SISO_INVM_PLCP,
- IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
-};
-
-/* MAC header values for bit rates */
-enum {
- IWL_RATE_6M_IEEE = 12,
- IWL_RATE_9M_IEEE = 18,
- IWL_RATE_12M_IEEE = 24,
- IWL_RATE_18M_IEEE = 36,
- IWL_RATE_24M_IEEE = 48,
- IWL_RATE_36M_IEEE = 72,
- IWL_RATE_48M_IEEE = 96,
- IWL_RATE_54M_IEEE = 108,
- IWL_RATE_60M_IEEE = 120,
- IWL_RATE_1M_IEEE = 2,
- IWL_RATE_2M_IEEE = 4,
- IWL_RATE_5M_IEEE = 11,
- IWL_RATE_11M_IEEE = 22,
-};
-
-#define IWL_CCK_BASIC_RATES_MASK \
- (IWL_RATE_1M_MASK | \
- IWL_RATE_2M_MASK)
-
-#define IWL_CCK_RATES_MASK \
- (IWL_CCK_BASIC_RATES_MASK | \
- IWL_RATE_5M_MASK | \
- IWL_RATE_11M_MASK)
-
-#define IWL_OFDM_BASIC_RATES_MASK \
- (IWL_RATE_6M_MASK | \
- IWL_RATE_12M_MASK | \
- IWL_RATE_24M_MASK)
-
-#define IWL_OFDM_RATES_MASK \
- (IWL_OFDM_BASIC_RATES_MASK | \
- IWL_RATE_9M_MASK | \
- IWL_RATE_18M_MASK | \
- IWL_RATE_36M_MASK | \
- IWL_RATE_48M_MASK | \
- IWL_RATE_54M_MASK)
-
-#define IWL_BASIC_RATES_MASK \
- (IWL_OFDM_BASIC_RATES_MASK | \
- IWL_CCK_BASIC_RATES_MASK)
-
-#define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
-#define IWL_RATES_MASK_3945 ((1 << IWL_RATE_COUNT_3945) - 1)
-
-#define IWL_INVALID_VALUE -1
-
-#define IWL_MIN_RSSI_VAL -100
-#define IWL_MAX_RSSI_VAL 0
-
-/* These values specify how many Tx frame attempts before
- * searching for a new modulation mode */
-#define IWL_LEGACY_FAILURE_LIMIT 160
-#define IWL_LEGACY_SUCCESS_LIMIT 480
-#define IWL_LEGACY_TABLE_COUNT 160
-
-#define IWL_NONE_LEGACY_FAILURE_LIMIT 400
-#define IWL_NONE_LEGACY_SUCCESS_LIMIT 4500
-#define IWL_NONE_LEGACY_TABLE_COUNT 1500
-
-/* Success ratio (ACKed / attempted tx frames) values (perfect is 128 * 100) */
-#define IWL_RS_GOOD_RATIO 12800 /* 100% */
-#define IWL_RATE_SCALE_SWITCH 10880 /* 85% */
-#define IWL_RATE_HIGH_TH 10880 /* 85% */
-#define IWL_RATE_INCREASE_TH 6400 /* 50% */
-#define IWL_RATE_DECREASE_TH 1920 /* 15% */
-
-/* possible actions when in legacy mode */
-#define IWL_LEGACY_SWITCH_ANTENNA1 0
-#define IWL_LEGACY_SWITCH_ANTENNA2 1
-#define IWL_LEGACY_SWITCH_SISO 2
-#define IWL_LEGACY_SWITCH_MIMO2_AB 3
-#define IWL_LEGACY_SWITCH_MIMO2_AC 4
-#define IWL_LEGACY_SWITCH_MIMO2_BC 5
-
-/* possible actions when in siso mode */
-#define IWL_SISO_SWITCH_ANTENNA1 0
-#define IWL_SISO_SWITCH_ANTENNA2 1
-#define IWL_SISO_SWITCH_MIMO2_AB 2
-#define IWL_SISO_SWITCH_MIMO2_AC 3
-#define IWL_SISO_SWITCH_MIMO2_BC 4
-#define IWL_SISO_SWITCH_GI 5
-
-/* possible actions when in mimo mode */
-#define IWL_MIMO2_SWITCH_ANTENNA1 0
-#define IWL_MIMO2_SWITCH_ANTENNA2 1
-#define IWL_MIMO2_SWITCH_SISO_A 2
-#define IWL_MIMO2_SWITCH_SISO_B 3
-#define IWL_MIMO2_SWITCH_SISO_C 4
-#define IWL_MIMO2_SWITCH_GI 5
-
-#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_GI
-
-#define IWL_ACTION_LIMIT 3 /* # possible actions */
-
-#define LQ_SIZE 2 /* 2 mode tables: "Active" and "Search" */
-
-/* load per tid defines for A-MPDU activation */
-#define IWL_AGG_TPT_THREHOLD 0
-#define IWL_AGG_LOAD_THRESHOLD 10
-#define IWL_AGG_ALL_TID 0xff
-#define TID_QUEUE_CELL_SPACING 50 /*mS */
-#define TID_QUEUE_MAX_SIZE 20
-#define TID_ROUND_VALUE 5 /* mS */
-#define TID_MAX_LOAD_COUNT 8
-
-#define TID_MAX_TIME_DIFF ((TID_QUEUE_MAX_SIZE - 1) * TID_QUEUE_CELL_SPACING)
-#define TIME_WRAP_AROUND(x, y) (((y) > (x)) ? (y) - (x) : (0-(x)) + (y))
-
-extern const struct iwl_rate_info iwlegacy_rates[IWL_RATE_COUNT];
-
-enum iwl_table_type {
- LQ_NONE,
- LQ_G, /* legacy types */
- LQ_A,
- LQ_SISO, /* high-throughput types */
- LQ_MIMO2,
- LQ_MAX,
-};
-
-#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
-#define is_siso(tbl) ((tbl) == LQ_SISO)
-#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
-#define is_mimo(tbl) (is_mimo2(tbl))
-#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
-#define is_a_band(tbl) ((tbl) == LQ_A)
-#define is_g_and(tbl) ((tbl) == LQ_G)
-
-#define ANT_NONE 0x0
-#define ANT_A BIT(0)
-#define ANT_B BIT(1)
-#define ANT_AB (ANT_A | ANT_B)
-#define ANT_C BIT(2)
-#define ANT_AC (ANT_A | ANT_C)
-#define ANT_BC (ANT_B | ANT_C)
-#define ANT_ABC (ANT_AB | ANT_C)
-
-#define IWL_MAX_MCS_DISPLAY_SIZE 12
-
-struct iwl_rate_mcs_info {
- char mbps[IWL_MAX_MCS_DISPLAY_SIZE];
- char mcs[IWL_MAX_MCS_DISPLAY_SIZE];
-};
-
-/**
- * struct iwl_rate_scale_data -- tx success history for one rate
- */
-struct iwl_rate_scale_data {
- u64 data; /* bitmap of successful frames */
- s32 success_counter; /* number of frames successful */
- s32 success_ratio; /* per-cent * 128 */
- s32 counter; /* number of frames attempted */
- s32 average_tpt; /* success ratio * expected throughput */
- unsigned long stamp;
-};
-
-/**
- * struct iwl_scale_tbl_info -- tx params and success history for all rates
- *
- * There are two of these in struct iwl_lq_sta,
- * one for "active", and one for "search".
- */
-struct iwl_scale_tbl_info {
- enum iwl_table_type lq_type;
- u8 ant_type;
- u8 is_SGI; /* 1 = short guard interval */
- u8 is_ht40; /* 1 = 40 MHz channel width */
- u8 is_dup; /* 1 = duplicated data streams */
- u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
- u8 max_search; /* maximun number of tables we can search */
- s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */
- u32 current_rate; /* rate_n_flags, uCode API format */
- struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */
-};
-
-struct iwl_traffic_load {
- unsigned long time_stamp; /* age of the oldest statistics */
- u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time
- * slice */
- u32 total; /* total num of packets during the
- * last TID_MAX_TIME_DIFF */
- u8 queue_count; /* number of queues that has
- * been used since the last cleanup */
- u8 head; /* start of the circular buffer */
-};
-
-/**
- * struct iwl_lq_sta -- driver's rate scaling private structure
- *
- * Pointer to this gets passed back and forth between driver and mac80211.
- */
-struct iwl_lq_sta {
- u8 active_tbl; /* index of active table, range 0-1 */
- u8 enable_counter; /* indicates HT mode */
- u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */
- u8 search_better_tbl; /* 1: currently trying alternate mode */
- s32 last_tpt;
-
- /* The following determine when to search for a new mode */
- u32 table_count_limit;
- u32 max_failure_limit; /* # failed frames before new search */
- u32 max_success_limit; /* # successful frames before new search */
- u32 table_count;
- u32 total_failed; /* total failed frames, any/all rates */
- u32 total_success; /* total successful frames, any/all rates */
- u64 flush_timer; /* time staying in mode before new search */
-
- u8 action_counter; /* # mode-switch actions tried */
- u8 is_green;
- u8 is_dup;
- enum ieee80211_band band;
-
- /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
- u32 supp_rates;
- u16 active_legacy_rate;
- u16 active_siso_rate;
- u16 active_mimo2_rate;
- s8 max_rate_idx; /* Max rate set by user */
- u8 missed_rate_counter;
-
- struct iwl_link_quality_cmd lq;
- struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */
- struct iwl_traffic_load load[TID_MAX_LOAD_COUNT];
- u8 tx_agg_tid_en;
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *rs_sta_dbgfs_scale_table_file;
- struct dentry *rs_sta_dbgfs_stats_table_file;
- struct dentry *rs_sta_dbgfs_rate_scale_data_file;
- struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file;
- u32 dbg_fixed_rate;
-#endif
- struct iwl_priv *drv;
-
- /* used to be in sta_info */
- int last_txrate_idx;
- /* last tx rate_n_flags */
- u32 last_rate_n_flags;
- /* packets destined for this STA are aggregated */
- u8 is_agg;
-};
-
-static inline u8 iwl4965_num_of_ant(u8 mask)
-{
- return !!((mask) & ANT_A) +
- !!((mask) & ANT_B) +
- !!((mask) & ANT_C);
-}
-
-static inline u8 iwl4965_first_antenna(u8 mask)
-{
- if (mask & ANT_A)
- return ANT_A;
- if (mask & ANT_B)
- return ANT_B;
- return ANT_C;
-}
-
-
-/**
- * iwl3945_rate_scale_init - Initialize the rate scale table based on assoc info
- *
- * The specific throughput table used is based on the type of network
- * the associated with, including A, B, G, and G w/ TGG protection
- */
-extern void iwl3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
-
-/* Initialize station's rate scaling information after adding station */
-extern void iwl4965_rs_rate_init(struct iwl_priv *priv,
- struct ieee80211_sta *sta, u8 sta_id);
-extern void iwl3945_rs_rate_init(struct iwl_priv *priv,
- struct ieee80211_sta *sta, u8 sta_id);
-
-/**
- * iwl_rate_control_register - Register the rate control algorithm callbacks
- *
- * Since the rate control algorithm is hardware specific, there is no need
- * or reason to place it as a stand alone module. The driver can call
- * iwl_rate_control_register in order to register the rate control callbacks
- * with the mac80211 subsystem. This should be performed prior to calling
- * ieee80211_register_hw
- *
- */
-extern int iwl4965_rate_control_register(void);
-extern int iwl3945_rate_control_register(void);
-
-/**
- * iwl_rate_control_unregister - Unregister the rate control callbacks
- *
- * This should be called after calling ieee80211_unregister_hw, but before
- * the driver is unloaded.
- */
-extern void iwl4965_rate_control_unregister(void);
-extern void iwl3945_rate_control_unregister(void);
-
-#endif /* __iwl_legacy_rs__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-power.c b/drivers/net/wireless/iwlegacy/iwl-power.c
deleted file mode 100644
index 903ef0d..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-power.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <net/mac80211.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-commands.h"
-#include "iwl-debug.h"
-#include "iwl-power.h"
-
-/*
- * Setting power level allows the card to go to sleep when not busy.
- *
- * We calculate a sleep command based on the required latency, which
- * we get from mac80211. In order to handle thermal throttling, we can
- * also use pre-defined power levels.
- */
-
-/*
- * This defines the old power levels. They are still used by default
- * (level 1) and for thermal throttle (levels 3 through 5)
- */
-
-struct iwl_power_vec_entry {
- struct iwl_powertable_cmd cmd;
- u8 no_dtim; /* number of skip dtim */
-};
-
-static void iwl_legacy_power_sleep_cam_cmd(struct iwl_priv *priv,
- struct iwl_powertable_cmd *cmd)
-{
- memset(cmd, 0, sizeof(*cmd));
-
- if (priv->power_data.pci_pm)
- cmd->flags |= IWL_POWER_PCI_PM_MSK;
-
- IWL_DEBUG_POWER(priv, "Sleep command for CAM\n");
-}
-
-static int
-iwl_legacy_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd)
-{
- IWL_DEBUG_POWER(priv, "Sending power/sleep command\n");
- IWL_DEBUG_POWER(priv, "Flags value = 0x%08X\n", cmd->flags);
- IWL_DEBUG_POWER(priv, "Tx timeout = %u\n",
- le32_to_cpu(cmd->tx_data_timeout));
- IWL_DEBUG_POWER(priv, "Rx timeout = %u\n",
- le32_to_cpu(cmd->rx_data_timeout));
- IWL_DEBUG_POWER(priv,
- "Sleep interval vector = { %d , %d , %d , %d , %d }\n",
- le32_to_cpu(cmd->sleep_interval[0]),
- le32_to_cpu(cmd->sleep_interval[1]),
- le32_to_cpu(cmd->sleep_interval[2]),
- le32_to_cpu(cmd->sleep_interval[3]),
- le32_to_cpu(cmd->sleep_interval[4]));
-
- return iwl_legacy_send_cmd_pdu(priv, POWER_TABLE_CMD,
- sizeof(struct iwl_powertable_cmd), cmd);
-}
-
-int
-iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
- bool force)
-{
- int ret;
- bool update_chains;
-
- lockdep_assert_held(&priv->mutex);
-
- /* Don't update the RX chain when chain noise calibration is running */
- update_chains = priv->chain_noise_data.state == IWL_CHAIN_NOISE_DONE ||
- priv->chain_noise_data.state == IWL_CHAIN_NOISE_ALIVE;
-
- if (!memcmp(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)) && !force)
- return 0;
-
- if (!iwl_legacy_is_ready_rf(priv))
- return -EIO;
-
- /* scan complete use sleep_power_next, need to be updated */
- memcpy(&priv->power_data.sleep_cmd_next, cmd, sizeof(*cmd));
- if (test_bit(STATUS_SCANNING, &priv->status) && !force) {
- IWL_DEBUG_INFO(priv, "Defer power set mode while scanning\n");
- return 0;
- }
-
- if (cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK)
- set_bit(STATUS_POWER_PMI, &priv->status);
-
- ret = iwl_legacy_set_power(priv, cmd);
- if (!ret) {
- if (!(cmd->flags & IWL_POWER_DRIVER_ALLOW_SLEEP_MSK))
- clear_bit(STATUS_POWER_PMI, &priv->status);
-
- if (priv->cfg->ops->lib->update_chain_flags && update_chains)
- priv->cfg->ops->lib->update_chain_flags(priv);
- else if (priv->cfg->ops->lib->update_chain_flags)
- IWL_DEBUG_POWER(priv,
- "Cannot update the power, chain noise "
- "calibration running: %d\n",
- priv->chain_noise_data.state);
-
- memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd));
- } else
- IWL_ERR(priv, "set power fail, ret = %d", ret);
-
- return ret;
-}
-
-int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force)
-{
- struct iwl_powertable_cmd cmd;
-
- iwl_legacy_power_sleep_cam_cmd(priv, &cmd);
- return iwl_legacy_power_set_mode(priv, &cmd, force);
-}
-EXPORT_SYMBOL(iwl_legacy_power_update_mode);
-
-/* initialize to default */
-void iwl_legacy_power_initialize(struct iwl_priv *priv)
-{
- u16 lctl = iwl_legacy_pcie_link_ctl(priv);
-
- priv->power_data.pci_pm = !(lctl & PCI_CFG_LINK_CTRL_VAL_L0S_EN);
-
- priv->power_data.debug_sleep_level_override = -1;
-
- memset(&priv->power_data.sleep_cmd, 0,
- sizeof(priv->power_data.sleep_cmd));
-}
-EXPORT_SYMBOL(iwl_legacy_power_initialize);
diff --git a/drivers/net/wireless/iwlegacy/iwl-power.h b/drivers/net/wireless/iwlegacy/iwl-power.h
deleted file mode 100644
index d30b36a..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-power.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2007 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-#ifndef __iwl_legacy_power_setting_h__
-#define __iwl_legacy_power_setting_h__
-
-#include "iwl-commands.h"
-
-enum iwl_power_level {
- IWL_POWER_INDEX_1,
- IWL_POWER_INDEX_2,
- IWL_POWER_INDEX_3,
- IWL_POWER_INDEX_4,
- IWL_POWER_INDEX_5,
- IWL_POWER_NUM
-};
-
-struct iwl_power_mgr {
- struct iwl_powertable_cmd sleep_cmd;
- struct iwl_powertable_cmd sleep_cmd_next;
- int debug_sleep_level_override;
- bool pci_pm;
-};
-
-int
-iwl_legacy_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd,
- bool force);
-int iwl_legacy_power_update_mode(struct iwl_priv *priv, bool force);
-void iwl_legacy_power_initialize(struct iwl_priv *priv);
-
-#endif /* __iwl_legacy_power_setting_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-rx.c b/drivers/net/wireless/iwlegacy/iwl-rx.c
deleted file mode 100644
index 9b5d0ab..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-rx.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/etherdevice.h>
-#include <linux/slab.h>
-#include <net/mac80211.h>
-#include <asm/unaligned.h>
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-/************************** RX-FUNCTIONS ****************************/
-/*
- * Rx theory of operation
- *
- * Driver allocates a circular buffer of Receive Buffer Descriptors (RBDs),
- * each of which point to Receive Buffers to be filled by the NIC. These get
- * used not only for Rx frames, but for any command response or notification
- * from the NIC. The driver and NIC manage the Rx buffers by means
- * of indexes into the circular buffer.
- *
- * Rx Queue Indexes
- * The host/firmware share two index registers for managing the Rx buffers.
- *
- * The READ index maps to the first position that the firmware may be writing
- * to -- the driver can read up to (but not including) this position and get
- * good data.
- * The READ index is managed by the firmware once the card is enabled.
- *
- * The WRITE index maps to the last position the driver has read from -- the
- * position preceding WRITE is the last slot the firmware can place a packet.
- *
- * The queue is empty (no good data) if WRITE = READ - 1, and is full if
- * WRITE = READ.
- *
- * During initialization, the host sets up the READ queue position to the first
- * INDEX position, and WRITE to the last (READ - 1 wrapped)
- *
- * When the firmware places a packet in a buffer, it will advance the READ index
- * and fire the RX interrupt. The driver can then query the READ index and
- * process as many packets as possible, moving the WRITE index forward as it
- * resets the Rx queue buffers with new memory.
- *
- * The management in the driver is as follows:
- * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
- * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
- * to replenish the iwl->rxq->rx_free.
- * + In iwl_rx_replenish (scheduled) if 'processed' != 'read' then the
- * iwl->rxq is replenished and the READ INDEX is updated (updating the
- * 'processed' and 'read' driver indexes as well)
- * + A received packet is processed and handed to the kernel network stack,
- * detached from the iwl->rxq. The driver 'processed' index is updated.
- * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
- * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
- * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
- * were enough free buffers and RX_STALLED is set it is cleared.
- *
- *
- * Driver sequence:
- *
- * iwl_legacy_rx_queue_alloc() Allocates rx_free
- * iwl_rx_replenish() Replenishes rx_free list from rx_used, and calls
- * iwl_rx_queue_restock
- * iwl_rx_queue_restock() Moves available buffers from rx_free into Rx
- * queue, updates firmware pointers, and updates
- * the WRITE index. If insufficient rx_free buffers
- * are available, schedules iwl_rx_replenish
- *
- * -- enable interrupts --
- * ISR - iwl_rx() Detach iwl_rx_mem_buffers from pool up to the
- * READ INDEX, detaching the SKB from the pool.
- * Moves the packet buffer from queue to rx_used.
- * Calls iwl_rx_queue_restock to refill any empty
- * slots.
- * ...
- *
- */
-
-/**
- * iwl_legacy_rx_queue_space - Return number of free slots available in queue.
- */
-int iwl_legacy_rx_queue_space(const struct iwl_rx_queue *q)
-{
- int s = q->read - q->write;
- if (s <= 0)
- s += RX_QUEUE_SIZE;
- /* keep some buffer to not confuse full and empty queue */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-EXPORT_SYMBOL(iwl_legacy_rx_queue_space);
-
-/**
- * iwl_legacy_rx_queue_update_write_ptr - Update the write pointer for the RX queue
- */
-void
-iwl_legacy_rx_queue_update_write_ptr(struct iwl_priv *priv,
- struct iwl_rx_queue *q)
-{
- unsigned long flags;
- u32 rx_wrt_ptr_reg = priv->hw_params.rx_wrt_ptr_reg;
- u32 reg;
-
- spin_lock_irqsave(&q->lock, flags);
-
- if (q->need_update == 0)
- goto exit_unlock;
-
- /* If power-saving is in use, make sure device is awake */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO(priv,
- "Rx queue requesting wakeup,"
- " GP1 = 0x%x\n", reg);
- iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- goto exit_unlock;
- }
-
- q->write_actual = (q->write & ~0x7);
- iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg,
- q->write_actual);
-
- /* Else device is assumed to be awake */
- } else {
- /* Device expects a multiple of 8 */
- q->write_actual = (q->write & ~0x7);
- iwl_legacy_write_direct32(priv, rx_wrt_ptr_reg,
- q->write_actual);
- }
-
- q->need_update = 0;
-
- exit_unlock:
- spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(iwl_legacy_rx_queue_update_write_ptr);
-
-int iwl_legacy_rx_queue_alloc(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct device *dev = &priv->pci_dev->dev;
- int i;
-
- spin_lock_init(&rxq->lock);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
-
- /* Alloc the circular buffer of Read Buffer Descriptors (RBDs) */
- rxq->bd = dma_alloc_coherent(dev, 4 * RX_QUEUE_SIZE, &rxq->bd_dma,
- GFP_KERNEL);
- if (!rxq->bd)
- goto err_bd;
-
- rxq->rb_stts = dma_alloc_coherent(dev, sizeof(struct iwl_rb_status),
- &rxq->rb_stts_dma, GFP_KERNEL);
- if (!rxq->rb_stts)
- goto err_rb;
-
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++)
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- rxq->need_update = 0;
- return 0;
-
-err_rb:
- dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->bd_dma);
-err_bd:
- return -ENOMEM;
-}
-EXPORT_SYMBOL(iwl_legacy_rx_queue_alloc);
-
-
-void iwl_legacy_rx_spectrum_measure_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_spectrum_notification *report = &(pkt->u.spectrum_notif);
-
- if (!report->state) {
- IWL_DEBUG_11H(priv,
- "Spectrum Measure Notification: Start\n");
- return;
- }
-
- memcpy(&priv->measure_report, report, sizeof(*report));
- priv->measurement_status |= MEASUREMENT_READY;
-}
-EXPORT_SYMBOL(iwl_legacy_rx_spectrum_measure_notif);
-
-/*
- * returns non-zero if packet should be dropped
- */
-int iwl_legacy_set_decrypted_flag(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- u32 decrypt_res,
- struct ieee80211_rx_status *stats)
-{
- u16 fc = le16_to_cpu(hdr->frame_control);
-
- /*
- * All contexts have the same setting here due to it being
- * a module parameter, so OK to check any context.
- */
- if (priv->contexts[IWL_RXON_CTX_BSS].active.filter_flags &
- RXON_FILTER_DIS_DECRYPT_MSK)
- return 0;
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return 0;
-
- IWL_DEBUG_RX(priv, "decrypt_res:0x%x\n", decrypt_res);
- switch (decrypt_res & RX_RES_STATUS_SEC_TYPE_MSK) {
- case RX_RES_STATUS_SEC_TYPE_TKIP:
- /* The uCode has got a bad phase 1 Key, pushes the packet.
- * Decryption will be done in SW. */
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_KEY_TTAK)
- break;
-
- case RX_RES_STATUS_SEC_TYPE_WEP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_BAD_ICV_MIC) {
- /* bad ICV, the packet is destroyed since the
- * decryption is inplace, drop it */
- IWL_DEBUG_RX(priv, "Packet destroyed\n");
- return -1;
- }
- case RX_RES_STATUS_SEC_TYPE_CCMP:
- if ((decrypt_res & RX_RES_STATUS_DECRYPT_TYPE_MSK) ==
- RX_RES_STATUS_DECRYPT_OK) {
- IWL_DEBUG_RX(priv, "hw decrypt successfully!!!\n");
- stats->flag |= RX_FLAG_DECRYPTED;
- }
- break;
-
- default:
- break;
- }
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_set_decrypted_flag);
diff --git a/drivers/net/wireless/iwlegacy/iwl-scan.c b/drivers/net/wireless/iwlegacy/iwl-scan.c
deleted file mode 100644
index a6b5222..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-scan.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/******************************************************************************
- *
- * GPL LICENSE SUMMARY
- *
- * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
- * USA
- *
- * The full GNU General Public License is included in this distribution
- * in the file called LICENSE.GPL.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *****************************************************************************/
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/etherdevice.h>
-#include <net/mac80211.h>
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-
-/* For active scan, listen ACTIVE_DWELL_TIME (msec) on each channel after
- * sending probe req. This should be set long enough to hear probe responses
- * from more than one AP. */
-#define IWL_ACTIVE_DWELL_TIME_24 (30) /* all times in msec */
-#define IWL_ACTIVE_DWELL_TIME_52 (20)
-
-#define IWL_ACTIVE_DWELL_FACTOR_24GHZ (3)
-#define IWL_ACTIVE_DWELL_FACTOR_52GHZ (2)
-
-/* For passive scan, listen PASSIVE_DWELL_TIME (msec) on each channel.
- * Must be set longer than active dwell time.
- * For the most reliable scan, set > AP beacon interval (typically 100msec). */
-#define IWL_PASSIVE_DWELL_TIME_24 (20) /* all times in msec */
-#define IWL_PASSIVE_DWELL_TIME_52 (10)
-#define IWL_PASSIVE_DWELL_BASE (100)
-#define IWL_CHANNEL_TUNE_TIME 5
-
-static int iwl_legacy_send_scan_abort(struct iwl_priv *priv)
-{
- int ret;
- struct iwl_rx_packet *pkt;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SCAN_ABORT_CMD,
- .flags = CMD_WANT_SKB,
- };
-
- /* Exit instantly with error when device is not ready
- * to receive scan abort command or it does not perform
- * hardware scan currently */
- if (!test_bit(STATUS_READY, &priv->status) ||
- !test_bit(STATUS_GEO_CONFIGURED, &priv->status) ||
- !test_bit(STATUS_SCAN_HW, &priv->status) ||
- test_bit(STATUS_FW_ERROR, &priv->status) ||
- test_bit(STATUS_EXIT_PENDING, &priv->status))
- return -EIO;
-
- ret = iwl_legacy_send_cmd_sync(priv, &cmd);
- if (ret)
- return ret;
-
- pkt = (struct iwl_rx_packet *)cmd.reply_page;
- if (pkt->u.status != CAN_ABORT_STATUS) {
- /* The scan abort will return 1 for success or
- * 2 for "failure". A failure condition can be
- * due to simply not being in an active scan which
- * can occur if we send the scan abort before we
- * the microcode has notified us that a scan is
- * completed. */
- IWL_DEBUG_SCAN(priv, "SCAN_ABORT ret %d.\n", pkt->u.status);
- ret = -EIO;
- }
-
- iwl_legacy_free_pages(priv, cmd.reply_page);
- return ret;
-}
-
-static void iwl_legacy_complete_scan(struct iwl_priv *priv, bool aborted)
-{
- /* check if scan was requested from mac80211 */
- if (priv->scan_request) {
- IWL_DEBUG_SCAN(priv, "Complete scan in mac80211\n");
- ieee80211_scan_completed(priv->hw, aborted);
- }
-
- priv->scan_vif = NULL;
- priv->scan_request = NULL;
-}
-
-void iwl_legacy_force_scan_end(struct iwl_priv *priv)
-{
- lockdep_assert_held(&priv->mutex);
-
- if (!test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Forcing scan end while not scanning\n");
- return;
- }
-
- IWL_DEBUG_SCAN(priv, "Forcing scan end\n");
- clear_bit(STATUS_SCANNING, &priv->status);
- clear_bit(STATUS_SCAN_HW, &priv->status);
- clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- iwl_legacy_complete_scan(priv, true);
-}
-
-static void iwl_legacy_do_scan_abort(struct iwl_priv *priv)
-{
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- if (!test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Not performing scan to abort\n");
- return;
- }
-
- if (test_and_set_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Scan abort in progress\n");
- return;
- }
-
- ret = iwl_legacy_send_scan_abort(priv);
- if (ret) {
- IWL_DEBUG_SCAN(priv, "Send scan abort failed %d\n", ret);
- iwl_legacy_force_scan_end(priv);
- } else
- IWL_DEBUG_SCAN(priv, "Successfully send scan abort\n");
-}
-
-/**
- * iwl_scan_cancel - Cancel any currently executing HW scan
- */
-int iwl_legacy_scan_cancel(struct iwl_priv *priv)
-{
- IWL_DEBUG_SCAN(priv, "Queuing abort scan\n");
- queue_work(priv->workqueue, &priv->abort_scan);
- return 0;
-}
-EXPORT_SYMBOL(iwl_legacy_scan_cancel);
-
-/**
- * iwl_legacy_scan_cancel_timeout - Cancel any currently executing HW scan
- * @ms: amount of time to wait (in milliseconds) for scan to abort
- *
- */
-int iwl_legacy_scan_cancel_timeout(struct iwl_priv *priv, unsigned long ms)
-{
- unsigned long timeout = jiffies + msecs_to_jiffies(ms);
-
- lockdep_assert_held(&priv->mutex);
-
- IWL_DEBUG_SCAN(priv, "Scan cancel timeout\n");
-
- iwl_legacy_do_scan_abort(priv);
-
- while (time_before_eq(jiffies, timeout)) {
- if (!test_bit(STATUS_SCAN_HW, &priv->status))
- break;
- msleep(20);
- }
-
- return test_bit(STATUS_SCAN_HW, &priv->status);
-}
-EXPORT_SYMBOL(iwl_legacy_scan_cancel_timeout);
-
-/* Service response to REPLY_SCAN_CMD (0x80) */
-static void iwl_legacy_rx_reply_scan(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_scanreq_notification *notif =
- (struct iwl_scanreq_notification *)pkt->u.raw;
-
- IWL_DEBUG_SCAN(priv, "Scan request status = 0x%x\n", notif->status);
-#endif
-}
-
-/* Service SCAN_START_NOTIFICATION (0x82) */
-static void iwl_legacy_rx_scan_start_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_scanstart_notification *notif =
- (struct iwl_scanstart_notification *)pkt->u.raw;
- priv->scan_start_tsf = le32_to_cpu(notif->tsf_low);
- IWL_DEBUG_SCAN(priv, "Scan start: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d (beacon timer %u)\n",
- notif->channel,
- notif->band ? "bg" : "a",
- le32_to_cpu(notif->tsf_high),
- le32_to_cpu(notif->tsf_low),
- notif->status, notif->beacon_timer);
-}
-
-/* Service SCAN_RESULTS_NOTIFICATION (0x83) */
-static void iwl_legacy_rx_scan_results_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_scanresults_notification *notif =
- (struct iwl_scanresults_notification *)pkt->u.raw;
-
- IWL_DEBUG_SCAN(priv, "Scan ch.res: "
- "%d [802.11%s] "
- "(TSF: 0x%08X:%08X) - %d "
- "elapsed=%lu usec\n",
- notif->channel,
- notif->band ? "bg" : "a",
- le32_to_cpu(notif->tsf_high),
- le32_to_cpu(notif->tsf_low),
- le32_to_cpu(notif->statistics[0]),
- le32_to_cpu(notif->tsf_low) - priv->scan_start_tsf);
-#endif
-}
-
-/* Service SCAN_COMPLETE_NOTIFICATION (0x84) */
-static void iwl_legacy_rx_scan_complete_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_scancomplete_notification *scan_notif = (void *)pkt->u.raw;
-#endif
-
- IWL_DEBUG_SCAN(priv,
- "Scan complete: %d channels (TSF 0x%08X:%08X) - %d\n",
- scan_notif->scanned_channels,
- scan_notif->tsf_low,
- scan_notif->tsf_high, scan_notif->status);
-
- /* The HW is no longer scanning */
- clear_bit(STATUS_SCAN_HW, &priv->status);
-
- IWL_DEBUG_SCAN(priv, "Scan on %sGHz took %dms\n",
- (priv->scan_band == IEEE80211_BAND_2GHZ) ? "2.4" : "5.2",
- jiffies_to_msecs(jiffies - priv->scan_start));
-
- queue_work(priv->workqueue, &priv->scan_completed);
-}
-
-void iwl_legacy_setup_rx_scan_handlers(struct iwl_priv *priv)
-{
- /* scan handlers */
- priv->rx_handlers[REPLY_SCAN_CMD] = iwl_legacy_rx_reply_scan;
- priv->rx_handlers[SCAN_START_NOTIFICATION] =
- iwl_legacy_rx_scan_start_notif;
- priv->rx_handlers[SCAN_RESULTS_NOTIFICATION] =
- iwl_legacy_rx_scan_results_notif;
- priv->rx_handlers[SCAN_COMPLETE_NOTIFICATION] =
- iwl_legacy_rx_scan_complete_notif;
-}
-EXPORT_SYMBOL(iwl_legacy_setup_rx_scan_handlers);
-
-inline u16 iwl_legacy_get_active_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- u8 n_probes)
-{
- if (band == IEEE80211_BAND_5GHZ)
- return IWL_ACTIVE_DWELL_TIME_52 +
- IWL_ACTIVE_DWELL_FACTOR_52GHZ * (n_probes + 1);
- else
- return IWL_ACTIVE_DWELL_TIME_24 +
- IWL_ACTIVE_DWELL_FACTOR_24GHZ * (n_probes + 1);
-}
-EXPORT_SYMBOL(iwl_legacy_get_active_dwell_time);
-
-u16 iwl_legacy_get_passive_dwell_time(struct iwl_priv *priv,
- enum ieee80211_band band,
- struct ieee80211_vif *vif)
-{
- struct iwl_rxon_context *ctx;
- u16 passive = (band == IEEE80211_BAND_2GHZ) ?
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_24 :
- IWL_PASSIVE_DWELL_BASE + IWL_PASSIVE_DWELL_TIME_52;
-
- if (iwl_legacy_is_any_associated(priv)) {
- /*
- * If we're associated, we clamp the maximum passive
- * dwell time to be 98% of the smallest beacon interval
- * (minus 2 * channel tune time)
- */
- for_each_context(priv, ctx) {
- u16 value;
-
- if (!iwl_legacy_is_associated_ctx(ctx))
- continue;
- value = ctx->vif ? ctx->vif->bss_conf.beacon_int : 0;
- if ((value > IWL_PASSIVE_DWELL_BASE) || !value)
- value = IWL_PASSIVE_DWELL_BASE;
- value = (value * 98) / 100 - IWL_CHANNEL_TUNE_TIME * 2;
- passive = min(value, passive);
- }
- }
-
- return passive;
-}
-EXPORT_SYMBOL(iwl_legacy_get_passive_dwell_time);
-
-void iwl_legacy_init_scan_params(struct iwl_priv *priv)
-{
- u8 ant_idx = fls(priv->hw_params.valid_tx_ant) - 1;
- if (!priv->scan_tx_ant[IEEE80211_BAND_5GHZ])
- priv->scan_tx_ant[IEEE80211_BAND_5GHZ] = ant_idx;
- if (!priv->scan_tx_ant[IEEE80211_BAND_2GHZ])
- priv->scan_tx_ant[IEEE80211_BAND_2GHZ] = ant_idx;
-}
-EXPORT_SYMBOL(iwl_legacy_init_scan_params);
-
-static int iwl_legacy_scan_initiate(struct iwl_priv *priv,
- struct ieee80211_vif *vif)
-{
- int ret;
-
- lockdep_assert_held(&priv->mutex);
-
- if (WARN_ON(!priv->cfg->ops->utils->request_scan))
- return -EOPNOTSUPP;
-
- cancel_delayed_work(&priv->scan_check);
-
- if (!iwl_legacy_is_ready_rf(priv)) {
- IWL_WARN(priv, "Request scan called when driver not ready.\n");
- return -EIO;
- }
-
- if (test_bit(STATUS_SCAN_HW, &priv->status)) {
- IWL_DEBUG_SCAN(priv,
- "Multiple concurrent scan requests in parallel.\n");
- return -EBUSY;
- }
-
- if (test_bit(STATUS_SCAN_ABORTING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Scan request while abort pending.\n");
- return -EBUSY;
- }
-
- IWL_DEBUG_SCAN(priv, "Starting scan...\n");
-
- set_bit(STATUS_SCANNING, &priv->status);
- priv->scan_start = jiffies;
-
- ret = priv->cfg->ops->utils->request_scan(priv, vif);
- if (ret) {
- clear_bit(STATUS_SCANNING, &priv->status);
- return ret;
- }
-
- queue_delayed_work(priv->workqueue, &priv->scan_check,
- IWL_SCAN_CHECK_WATCHDOG);
-
- return 0;
-}
-
-int iwl_legacy_mac_hw_scan(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct cfg80211_scan_request *req)
-{
- struct iwl_priv *priv = hw->priv;
- int ret;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (req->n_channels == 0)
- return -EINVAL;
-
- mutex_lock(&priv->mutex);
-
- if (test_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Scan already in progress.\n");
- ret = -EAGAIN;
- goto out_unlock;
- }
-
- /* mac80211 will only ask for one band at a time */
- priv->scan_request = req;
- priv->scan_vif = vif;
- priv->scan_band = req->channels[0]->band;
-
- ret = iwl_legacy_scan_initiate(priv, vif);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-
-out_unlock:
- mutex_unlock(&priv->mutex);
-
- return ret;
-}
-EXPORT_SYMBOL(iwl_legacy_mac_hw_scan);
-
-static void iwl_legacy_bg_scan_check(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, scan_check.work);
-
- IWL_DEBUG_SCAN(priv, "Scan check work\n");
-
- /* Since we are here firmware does not finish scan and
- * most likely is in bad shape, so we don't bother to
- * send abort command, just force scan complete to mac80211 */
- mutex_lock(&priv->mutex);
- iwl_legacy_force_scan_end(priv);
- mutex_unlock(&priv->mutex);
-}
-
-/**
- * iwl_legacy_fill_probe_req - fill in all required fields and IE for probe request
- */
-
-u16
-iwl_legacy_fill_probe_req(struct iwl_priv *priv, struct ieee80211_mgmt *frame,
- const u8 *ta, const u8 *ies, int ie_len, int left)
-{
- int len = 0;
- u8 *pos = NULL;
-
- /* Make sure there is enough space for the probe request,
- * two mandatory IEs and the data */
- left -= 24;
- if (left < 0)
- return 0;
-
- frame->frame_control = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
- memcpy(frame->da, iwlegacy_bcast_addr, ETH_ALEN);
- memcpy(frame->sa, ta, ETH_ALEN);
- memcpy(frame->bssid, iwlegacy_bcast_addr, ETH_ALEN);
- frame->seq_ctrl = 0;
-
- len += 24;
-
- /* ...next IE... */
- pos = &frame->u.probe_req.variable[0];
-
- /* fill in our indirect SSID IE */
- left -= 2;
- if (left < 0)
- return 0;
- *pos++ = WLAN_EID_SSID;
- *pos++ = 0;
-
- len += 2;
-
- if (WARN_ON(left < ie_len))
- return len;
-
- if (ies && ie_len) {
- memcpy(pos, ies, ie_len);
- len += ie_len;
- }
-
- return (u16)len;
-}
-EXPORT_SYMBOL(iwl_legacy_fill_probe_req);
-
-static void iwl_legacy_bg_abort_scan(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv, abort_scan);
-
- IWL_DEBUG_SCAN(priv, "Abort scan work\n");
-
- /* We keep scan_check work queued in case when firmware will not
- * report back scan completed notification */
- mutex_lock(&priv->mutex);
- iwl_legacy_scan_cancel_timeout(priv, 200);
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl_legacy_bg_scan_completed(struct work_struct *work)
-{
- struct iwl_priv *priv =
- container_of(work, struct iwl_priv, scan_completed);
- bool aborted;
-
- IWL_DEBUG_SCAN(priv, "Completed scan.\n");
-
- cancel_delayed_work(&priv->scan_check);
-
- mutex_lock(&priv->mutex);
-
- aborted = test_and_clear_bit(STATUS_SCAN_ABORTING, &priv->status);
- if (aborted)
- IWL_DEBUG_SCAN(priv, "Aborted scan completed.\n");
-
- if (!test_and_clear_bit(STATUS_SCANNING, &priv->status)) {
- IWL_DEBUG_SCAN(priv, "Scan already completed.\n");
- goto out_settings;
- }
-
- iwl_legacy_complete_scan(priv, aborted);
-
-out_settings:
- /* Can we still talk to firmware ? */
- if (!iwl_legacy_is_ready_rf(priv))
- goto out;
-
- /*
- * We do not commit power settings while scan is pending,
- * do it now if the settings changed.
- */
- iwl_legacy_power_set_mode(priv, &priv->power_data.sleep_cmd_next, false);
- iwl_legacy_set_tx_power(priv, priv->tx_power_next, false);
-
- priv->cfg->ops->utils->post_scan(priv);
-
-out:
- mutex_unlock(&priv->mutex);
-}
-
-void iwl_legacy_setup_scan_deferred_work(struct iwl_priv *priv)
-{
- INIT_WORK(&priv->scan_completed, iwl_legacy_bg_scan_completed);
- INIT_WORK(&priv->abort_scan, iwl_legacy_bg_abort_scan);
- INIT_DELAYED_WORK(&priv->scan_check, iwl_legacy_bg_scan_check);
-}
-EXPORT_SYMBOL(iwl_legacy_setup_scan_deferred_work);
-
-void iwl_legacy_cancel_scan_deferred_work(struct iwl_priv *priv)
-{
- cancel_work_sync(&priv->abort_scan);
- cancel_work_sync(&priv->scan_completed);
-
- if (cancel_delayed_work_sync(&priv->scan_check)) {
- mutex_lock(&priv->mutex);
- iwl_legacy_force_scan_end(priv);
- mutex_unlock(&priv->mutex);
- }
-}
-EXPORT_SYMBOL(iwl_legacy_cancel_scan_deferred_work);
diff --git a/drivers/net/wireless/iwlegacy/iwl-spectrum.h b/drivers/net/wireless/iwlegacy/iwl-spectrum.h
index 9f70a47..85fe48e 100644
--- a/drivers/net/wireless/iwlegacy/iwl-spectrum.h
+++ b/drivers/net/wireless/iwlegacy/iwl-spectrum.h
@@ -26,8 +26,8 @@
*
*****************************************************************************/
-#ifndef __iwl_legacy_spectrum_h__
-#define __iwl_legacy_spectrum_h__
+#ifndef __il_spectrum_h__
+#define __il_spectrum_h__
enum { /* ieee80211_basic_report.map */
IEEE80211_BASIC_MAP_BSS = (1 << 0),
IEEE80211_BASIC_MAP_OFDM = (1 << 1),
diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.c b/drivers/net/wireless/iwlegacy/iwl-sta.c
index 66f0fb2..58762e79 100644
--- a/drivers/net/wireless/iwlegacy/iwl-sta.c
+++ b/drivers/net/wireless/iwlegacy/iwl-sta.c
@@ -36,76 +36,76 @@
#include "iwl-core.h"
#include "iwl-sta.h"
-/* priv->sta_lock must be held */
-static void iwl_legacy_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id)
+/* il->sta_lock must be held */
+static void il_sta_ucode_activate(struct il_priv *il, u8 sta_id)
{
- if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE))
- IWL_ERR(priv,
+ if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE))
+ IL_ERR(
"ACTIVATE a non DRIVER active station id %u addr %pM\n",
- sta_id, priv->stations[sta_id].sta.sta.addr);
+ sta_id, il->stations[sta_id].sta.sta.addr);
- if (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) {
- IWL_DEBUG_ASSOC(priv,
+ if (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) {
+ D_ASSOC(
"STA id %u addr %pM already present"
" in uCode (according to driver)\n",
- sta_id, priv->stations[sta_id].sta.sta.addr);
+ sta_id, il->stations[sta_id].sta.sta.addr);
} else {
- priv->stations[sta_id].used |= IWL_STA_UCODE_ACTIVE;
- IWL_DEBUG_ASSOC(priv, "Added STA id %u addr %pM to uCode\n",
- sta_id, priv->stations[sta_id].sta.sta.addr);
+ il->stations[sta_id].used |= IL_STA_UCODE_ACTIVE;
+ D_ASSOC("Added STA id %u addr %pM to uCode\n",
+ sta_id, il->stations[sta_id].sta.sta.addr);
}
}
-static int iwl_legacy_process_add_sta_resp(struct iwl_priv *priv,
- struct iwl_legacy_addsta_cmd *addsta,
- struct iwl_rx_packet *pkt,
+static int il_process_add_sta_resp(struct il_priv *il,
+ struct il_addsta_cmd *addsta,
+ struct il_rx_pkt *pkt,
bool sync)
{
u8 sta_id = addsta->sta.sta_id;
unsigned long flags;
int ret = -EIO;
- if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from REPLY_ADD_STA (0x%08X)\n",
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from C_ADD_STA (0x%08X)\n",
pkt->hdr.flags);
return ret;
}
- IWL_DEBUG_INFO(priv, "Processing response for adding station %u\n",
+ D_INFO("Processing response for adding station %u\n",
sta_id);
- spin_lock_irqsave(&priv->sta_lock, flags);
+ spin_lock_irqsave(&il->sta_lock, flags);
switch (pkt->u.add_sta.status) {
case ADD_STA_SUCCESS_MSK:
- IWL_DEBUG_INFO(priv, "REPLY_ADD_STA PASSED\n");
- iwl_legacy_sta_ucode_activate(priv, sta_id);
+ D_INFO("C_ADD_STA PASSED\n");
+ il_sta_ucode_activate(il, sta_id);
ret = 0;
break;
- case ADD_STA_NO_ROOM_IN_TABLE:
- IWL_ERR(priv, "Adding station %d failed, no room in table.\n",
+ case ADD_STA_NO_ROOM_IN_TBL:
+ IL_ERR("Adding station %d failed, no room in table.\n",
sta_id);
break;
case ADD_STA_NO_BLOCK_ACK_RESOURCE:
- IWL_ERR(priv,
+ IL_ERR(
"Adding station %d failed, no block ack resource.\n",
sta_id);
break;
case ADD_STA_MODIFY_NON_EXIST_STA:
- IWL_ERR(priv, "Attempting to modify non-existing station %d\n",
+ IL_ERR("Attempting to modify non-existing station %d\n",
sta_id);
break;
default:
- IWL_DEBUG_ASSOC(priv, "Received REPLY_ADD_STA:(0x%08X)\n",
+ D_ASSOC("Received C_ADD_STA:(0x%08X)\n",
pkt->u.add_sta.status);
break;
}
- IWL_DEBUG_INFO(priv, "%s station id %u addr %pM\n",
- priv->stations[sta_id].sta.mode ==
+ D_INFO("%s station id %u addr %pM\n",
+ il->stations[sta_id].sta.mode ==
STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
- sta_id, priv->stations[sta_id].sta.sta.addr);
+ sta_id, il->stations[sta_id].sta.sta.addr);
/*
* XXX: The MAC address in the command buffer is often changed from
@@ -115,68 +115,68 @@
* issue has not yet been resolved and this debugging is left to
* observe the problem.
*/
- IWL_DEBUG_INFO(priv, "%s station according to cmd buffer %pM\n",
- priv->stations[sta_id].sta.mode ==
+ D_INFO("%s station according to cmd buffer %pM\n",
+ il->stations[sta_id].sta.mode ==
STA_CONTROL_MODIFY_MSK ? "Modified" : "Added",
addsta->sta.addr);
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
return ret;
}
-static void iwl_legacy_add_sta_callback(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct iwl_rx_packet *pkt)
+static void il_add_sta_callback(struct il_priv *il,
+ struct il_device_cmd *cmd,
+ struct il_rx_pkt *pkt)
{
- struct iwl_legacy_addsta_cmd *addsta =
- (struct iwl_legacy_addsta_cmd *)cmd->cmd.payload;
+ struct il_addsta_cmd *addsta =
+ (struct il_addsta_cmd *)cmd->cmd.payload;
- iwl_legacy_process_add_sta_resp(priv, addsta, pkt, false);
+ il_process_add_sta_resp(il, addsta, pkt, false);
}
-int iwl_legacy_send_add_sta(struct iwl_priv *priv,
- struct iwl_legacy_addsta_cmd *sta, u8 flags)
+int il_send_add_sta(struct il_priv *il,
+ struct il_addsta_cmd *sta, u8 flags)
{
- struct iwl_rx_packet *pkt = NULL;
+ struct il_rx_pkt *pkt = NULL;
int ret = 0;
u8 data[sizeof(*sta)];
- struct iwl_host_cmd cmd = {
- .id = REPLY_ADD_STA,
+ struct il_host_cmd cmd = {
+ .id = C_ADD_STA,
.flags = flags,
.data = data,
};
u8 sta_id __maybe_unused = sta->sta.sta_id;
- IWL_DEBUG_INFO(priv, "Adding sta %u (%pM) %ssynchronously\n",
+ D_INFO("Adding sta %u (%pM) %ssynchronously\n",
sta_id, sta->sta.addr, flags & CMD_ASYNC ? "a" : "");
if (flags & CMD_ASYNC)
- cmd.callback = iwl_legacy_add_sta_callback;
+ cmd.callback = il_add_sta_callback;
else {
cmd.flags |= CMD_WANT_SKB;
might_sleep();
}
- cmd.len = priv->cfg->ops->utils->build_addsta_hcmd(sta, data);
- ret = iwl_legacy_send_cmd(priv, &cmd);
+ cmd.len = il->cfg->ops->utils->build_addsta_hcmd(sta, data);
+ ret = il_send_cmd(il, &cmd);
if (ret || (flags & CMD_ASYNC))
return ret;
if (ret == 0) {
- pkt = (struct iwl_rx_packet *)cmd.reply_page;
- ret = iwl_legacy_process_add_sta_resp(priv, sta, pkt, true);
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ ret = il_process_add_sta_resp(il, sta, pkt, true);
}
- iwl_legacy_free_pages(priv, cmd.reply_page);
+ il_free_pages(il, cmd.reply_page);
return ret;
}
-EXPORT_SYMBOL(iwl_legacy_send_add_sta);
+EXPORT_SYMBOL(il_send_add_sta);
-static void iwl_legacy_set_ht_add_station(struct iwl_priv *priv, u8 index,
+static void il_set_ht_add_station(struct il_priv *il, u8 idx,
struct ieee80211_sta *sta,
- struct iwl_rxon_context *ctx)
+ struct il_rxon_context *ctx)
{
struct ieee80211_sta_ht_cap *sta_ht_inf = &sta->ht_cap;
__le32 sta_flags;
@@ -186,13 +186,13 @@
goto done;
mimo_ps_mode = (sta_ht_inf->cap & IEEE80211_HT_CAP_SM_PS) >> 2;
- IWL_DEBUG_ASSOC(priv, "spatial multiplexing power save mode: %s\n",
+ D_ASSOC("spatial multiplexing power save mode: %s\n",
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_STATIC) ?
"static" :
(mimo_ps_mode == WLAN_HT_CAP_SM_PS_DYNAMIC) ?
"dynamic" : "disabled");
- sta_flags = priv->stations[index].sta.station_flags;
+ sta_flags = il->stations[idx].sta.station_flags;
sta_flags &= ~(STA_FLG_RTS_MIMO_PROT_MSK | STA_FLG_MIMO_DIS_MSK);
@@ -206,7 +206,7 @@
case WLAN_HT_CAP_SM_PS_DISABLED:
break;
default:
- IWL_WARN(priv, "Invalid MIMO PS mode %d\n", mimo_ps_mode);
+ IL_WARN("Invalid MIMO PS mode %d\n", mimo_ps_mode);
break;
}
@@ -216,27 +216,27 @@
sta_flags |= cpu_to_le32(
(u32)sta_ht_inf->ampdu_density << STA_FLG_AGG_MPDU_DENSITY_POS);
- if (iwl_legacy_is_ht40_tx_allowed(priv, ctx, &sta->ht_cap))
+ if (il_is_ht40_tx_allowed(il, ctx, &sta->ht_cap))
sta_flags |= STA_FLG_HT40_EN_MSK;
else
sta_flags &= ~STA_FLG_HT40_EN_MSK;
- priv->stations[index].sta.station_flags = sta_flags;
+ il->stations[idx].sta.station_flags = sta_flags;
done:
return;
}
/**
- * iwl_legacy_prep_station - Prepare station information for addition
+ * il_prep_station - Prepare station information for addition
*
* should be called with sta_lock held
*/
-u8 iwl_legacy_prep_station(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
+u8 il_prep_station(struct il_priv *il, struct il_rxon_context *ctx,
const u8 *addr, bool is_ap, struct ieee80211_sta *sta)
{
- struct iwl_station_entry *station;
+ struct il_station_entry *station;
int i;
- u8 sta_id = IWL_INVALID_STATION;
+ u8 sta_id = IL_INVALID_STATION;
u16 rate;
if (is_ap)
@@ -244,15 +244,15 @@
else if (is_broadcast_ether_addr(addr))
sta_id = ctx->bcast_sta_id;
else
- for (i = IWL_STA_ID; i < priv->hw_params.max_stations; i++) {
- if (!compare_ether_addr(priv->stations[i].sta.sta.addr,
+ for (i = IL_STA_ID; i < il->hw_params.max_stations; i++) {
+ if (!compare_ether_addr(il->stations[i].sta.sta.addr,
addr)) {
sta_id = i;
break;
}
- if (!priv->stations[i].used &&
- sta_id == IWL_INVALID_STATION)
+ if (!il->stations[i].used &&
+ sta_id == IL_INVALID_STATION)
sta_id = i;
}
@@ -260,7 +260,7 @@
* These two conditions have the same outcome, but keep them
* separate
*/
- if (unlikely(sta_id == IWL_INVALID_STATION))
+ if (unlikely(sta_id == IL_INVALID_STATION))
return sta_id;
/*
@@ -268,30 +268,30 @@
* station. Keep track if one is in progress so that we do not send
* another.
*/
- if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
- IWL_DEBUG_INFO(priv,
+ if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
+ D_INFO(
"STA %d already in process of being added.\n",
sta_id);
return sta_id;
}
- if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
- (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE) &&
- !compare_ether_addr(priv->stations[sta_id].sta.sta.addr, addr)) {
- IWL_DEBUG_ASSOC(priv,
+ if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
+ (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE) &&
+ !compare_ether_addr(il->stations[sta_id].sta.sta.addr, addr)) {
+ D_ASSOC(
"STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
return sta_id;
}
- station = &priv->stations[sta_id];
- station->used = IWL_STA_DRIVER_ACTIVE;
- IWL_DEBUG_ASSOC(priv, "Add STA to driver ID %d: %pM\n",
+ station = &il->stations[sta_id];
+ station->used = IL_STA_DRIVER_ACTIVE;
+ D_ASSOC("Add STA to driver ID %d: %pM\n",
sta_id, addr);
- priv->num_stations++;
+ il->num_stations++;
- /* Set up the REPLY_ADD_STA command to send to device */
- memset(&station->sta, 0, sizeof(struct iwl_legacy_addsta_cmd));
+ /* Set up the C_ADD_STA command to send to device */
+ memset(&station->sta, 0, sizeof(struct il_addsta_cmd));
memcpy(station->sta.sta.addr, addr, ETH_ALEN);
station->sta.mode = 0;
station->sta.sta.sta_id = sta_id;
@@ -299,7 +299,7 @@
station->ctxid = ctx->ctxid;
if (sta) {
- struct iwl_station_priv_common *sta_priv;
+ struct il_station_priv_common *sta_priv;
sta_priv = (void *)sta->drv_priv;
sta_priv->ctx = ctx;
@@ -310,42 +310,42 @@
* STA and broadcast STA) pass in a NULL sta, and mac80211
* doesn't allow HT IBSS.
*/
- iwl_legacy_set_ht_add_station(priv, sta_id, sta, ctx);
+ il_set_ht_add_station(il, sta_id, sta, ctx);
/* 3945 only */
- rate = (priv->band == IEEE80211_BAND_5GHZ) ?
- IWL_RATE_6M_PLCP : IWL_RATE_1M_PLCP;
+ rate = (il->band == IEEE80211_BAND_5GHZ) ?
+ RATE_6M_PLCP : RATE_1M_PLCP;
/* Turn on both antennas for the station... */
station->sta.rate_n_flags = cpu_to_le16(rate | RATE_MCS_ANT_AB_MSK);
return sta_id;
}
-EXPORT_SYMBOL_GPL(iwl_legacy_prep_station);
+EXPORT_SYMBOL_GPL(il_prep_station);
#define STA_WAIT_TIMEOUT (HZ/2)
/**
- * iwl_legacy_add_station_common -
+ * il_add_station_common -
*/
int
-iwl_legacy_add_station_common(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
+il_add_station_common(struct il_priv *il,
+ struct il_rxon_context *ctx,
const u8 *addr, bool is_ap,
struct ieee80211_sta *sta, u8 *sta_id_r)
{
unsigned long flags_spin;
int ret = 0;
u8 sta_id;
- struct iwl_legacy_addsta_cmd sta_cmd;
+ struct il_addsta_cmd sta_cmd;
*sta_id_r = 0;
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- sta_id = iwl_legacy_prep_station(priv, ctx, addr, is_ap, sta);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Unable to prepare station %pM for addition\n",
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ sta_id = il_prep_station(il, ctx, addr, is_ap, sta);
+ if (sta_id == IL_INVALID_STATION) {
+ IL_ERR("Unable to prepare station %pM for addition\n",
addr);
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
return -EINVAL;
}
@@ -354,75 +354,75 @@
* station. Keep track if one is in progress so that we do not send
* another.
*/
- if (priv->stations[sta_id].used & IWL_STA_UCODE_INPROGRESS) {
- IWL_DEBUG_INFO(priv,
+ if (il->stations[sta_id].used & IL_STA_UCODE_INPROGRESS) {
+ D_INFO(
"STA %d already in process of being added.\n",
sta_id);
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
return -EEXIST;
}
- if ((priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE) &&
- (priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
- IWL_DEBUG_ASSOC(priv,
+ if ((il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE) &&
+ (il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
+ D_ASSOC(
"STA %d (%pM) already added, not adding again.\n",
sta_id, addr);
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
return -EEXIST;
}
- priv->stations[sta_id].used |= IWL_STA_UCODE_INPROGRESS;
- memcpy(&sta_cmd, &priv->stations[sta_id].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ il->stations[sta_id].used |= IL_STA_UCODE_INPROGRESS;
+ memcpy(&sta_cmd, &il->stations[sta_id].sta,
+ sizeof(struct il_addsta_cmd));
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
/* Add station to device's station table */
- ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
+ ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
if (ret) {
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- IWL_ERR(priv, "Adding station %pM failed.\n",
- priv->stations[sta_id].sta.sta.addr);
- priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
- priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ IL_ERR("Adding station %pM failed.\n",
+ il->stations[sta_id].sta.sta.addr);
+ il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
+ il->stations[sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
}
*sta_id_r = sta_id;
return ret;
}
-EXPORT_SYMBOL(iwl_legacy_add_station_common);
+EXPORT_SYMBOL(il_add_station_common);
/**
- * iwl_legacy_sta_ucode_deactivate - deactivate ucode status for a station
+ * il_sta_ucode_deactivate - deactivate ucode status for a station
*
- * priv->sta_lock must be held
+ * il->sta_lock must be held
*/
-static void iwl_legacy_sta_ucode_deactivate(struct iwl_priv *priv, u8 sta_id)
+static void il_sta_ucode_deactivate(struct il_priv *il, u8 sta_id)
{
/* Ucode must be active and driver must be non active */
- if ((priv->stations[sta_id].used &
- (IWL_STA_UCODE_ACTIVE | IWL_STA_DRIVER_ACTIVE)) !=
- IWL_STA_UCODE_ACTIVE)
- IWL_ERR(priv, "removed non active STA %u\n", sta_id);
+ if ((il->stations[sta_id].used &
+ (IL_STA_UCODE_ACTIVE | IL_STA_DRIVER_ACTIVE)) !=
+ IL_STA_UCODE_ACTIVE)
+ IL_ERR("removed non active STA %u\n", sta_id);
- priv->stations[sta_id].used &= ~IWL_STA_UCODE_ACTIVE;
+ il->stations[sta_id].used &= ~IL_STA_UCODE_ACTIVE;
- memset(&priv->stations[sta_id], 0, sizeof(struct iwl_station_entry));
- IWL_DEBUG_ASSOC(priv, "Removed STA %u\n", sta_id);
+ memset(&il->stations[sta_id], 0, sizeof(struct il_station_entry));
+ D_ASSOC("Removed STA %u\n", sta_id);
}
-static int iwl_legacy_send_remove_station(struct iwl_priv *priv,
+static int il_send_remove_station(struct il_priv *il,
const u8 *addr, int sta_id,
bool temporary)
{
- struct iwl_rx_packet *pkt;
+ struct il_rx_pkt *pkt;
int ret;
unsigned long flags_spin;
- struct iwl_rem_sta_cmd rm_sta_cmd;
+ struct il_rem_sta_cmd rm_sta_cmd;
- struct iwl_host_cmd cmd = {
- .id = REPLY_REMOVE_STA,
- .len = sizeof(struct iwl_rem_sta_cmd),
+ struct il_host_cmd cmd = {
+ .id = C_REM_STA,
+ .len = sizeof(struct il_rem_sta_cmd),
.flags = CMD_SYNC,
.data = &rm_sta_cmd,
};
@@ -433,14 +433,14 @@
cmd.flags |= CMD_WANT_SKB;
- ret = iwl_legacy_send_cmd(priv, &cmd);
+ ret = il_send_cmd(il, &cmd);
if (ret)
return ret;
- pkt = (struct iwl_rx_packet *)cmd.reply_page;
- if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from REPLY_REMOVE_STA (0x%08X)\n",
+ pkt = (struct il_rx_pkt *)cmd.reply_page;
+ if (pkt->hdr.flags & IL_CMD_FAILED_MSK) {
+ IL_ERR("Bad return from C_REM_STA (0x%08X)\n",
pkt->hdr.flags);
ret = -EIO;
}
@@ -449,34 +449,34 @@
switch (pkt->u.rem_sta.status) {
case REM_STA_SUCCESS_MSK:
if (!temporary) {
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- iwl_legacy_sta_ucode_deactivate(priv, sta_id);
- spin_unlock_irqrestore(&priv->sta_lock,
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il_sta_ucode_deactivate(il, sta_id);
+ spin_unlock_irqrestore(&il->sta_lock,
flags_spin);
}
- IWL_DEBUG_ASSOC(priv, "REPLY_REMOVE_STA PASSED\n");
+ D_ASSOC("C_REM_STA PASSED\n");
break;
default:
ret = -EIO;
- IWL_ERR(priv, "REPLY_REMOVE_STA failed\n");
+ IL_ERR("C_REM_STA failed\n");
break;
}
}
- iwl_legacy_free_pages(priv, cmd.reply_page);
+ il_free_pages(il, cmd.reply_page);
return ret;
}
/**
- * iwl_legacy_remove_station - Remove driver's knowledge of station.
+ * il_remove_station - Remove driver's knowledge of station.
*/
-int iwl_legacy_remove_station(struct iwl_priv *priv, const u8 sta_id,
+int il_remove_station(struct il_priv *il, const u8 sta_id,
const u8 *addr)
{
unsigned long flags;
- if (!iwl_legacy_is_ready(priv)) {
- IWL_DEBUG_INFO(priv,
+ if (!il_is_ready(il)) {
+ D_INFO(
"Unable to remove station %pM, device not ready.\n",
addr);
/*
@@ -487,85 +487,85 @@
return 0;
}
- IWL_DEBUG_ASSOC(priv, "Removing STA from driver:%d %pM\n",
+ D_ASSOC("Removing STA from driver:%d %pM\n",
sta_id, addr);
- if (WARN_ON(sta_id == IWL_INVALID_STATION))
+ if (WARN_ON(sta_id == IL_INVALID_STATION))
return -EINVAL;
- spin_lock_irqsave(&priv->sta_lock, flags);
+ spin_lock_irqsave(&il->sta_lock, flags);
- if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
- IWL_DEBUG_INFO(priv, "Removing %pM but non DRIVER active\n",
+ if (!(il->stations[sta_id].used & IL_STA_DRIVER_ACTIVE)) {
+ D_INFO("Removing %pM but non DRIVER active\n",
addr);
goto out_err;
}
- if (!(priv->stations[sta_id].used & IWL_STA_UCODE_ACTIVE)) {
- IWL_DEBUG_INFO(priv, "Removing %pM but non UCODE active\n",
+ if (!(il->stations[sta_id].used & IL_STA_UCODE_ACTIVE)) {
+ D_INFO("Removing %pM but non UCODE active\n",
addr);
goto out_err;
}
- if (priv->stations[sta_id].used & IWL_STA_LOCAL) {
- kfree(priv->stations[sta_id].lq);
- priv->stations[sta_id].lq = NULL;
+ if (il->stations[sta_id].used & IL_STA_LOCAL) {
+ kfree(il->stations[sta_id].lq);
+ il->stations[sta_id].lq = NULL;
}
- priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE;
+ il->stations[sta_id].used &= ~IL_STA_DRIVER_ACTIVE;
- priv->num_stations--;
+ il->num_stations--;
- BUG_ON(priv->num_stations < 0);
+ BUG_ON(il->num_stations < 0);
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
- return iwl_legacy_send_remove_station(priv, addr, sta_id, false);
+ return il_send_remove_station(il, addr, sta_id, false);
out_err:
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
return -EINVAL;
}
-EXPORT_SYMBOL_GPL(iwl_legacy_remove_station);
+EXPORT_SYMBOL_GPL(il_remove_station);
/**
- * iwl_legacy_clear_ucode_stations - clear ucode station table bits
+ * il_clear_ucode_stations - clear ucode station table bits
*
* This function clears all the bits in the driver indicating
* which stations are active in the ucode. Call when something
* other than explicit station management would cause this in
* the ucode, e.g. unassociated RXON.
*/
-void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx)
+void il_clear_ucode_stations(struct il_priv *il,
+ struct il_rxon_context *ctx)
{
int i;
unsigned long flags_spin;
bool cleared = false;
- IWL_DEBUG_INFO(priv, "Clearing ucode stations in driver\n");
+ D_INFO("Clearing ucode stations in driver\n");
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- for (i = 0; i < priv->hw_params.max_stations; i++) {
- if (ctx && ctx->ctxid != priv->stations[i].ctxid)
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (ctx && ctx->ctxid != il->stations[i].ctxid)
continue;
- if (priv->stations[i].used & IWL_STA_UCODE_ACTIVE) {
- IWL_DEBUG_INFO(priv,
+ if (il->stations[i].used & IL_STA_UCODE_ACTIVE) {
+ D_INFO(
"Clearing ucode active for station %d\n", i);
- priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
+ il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
cleared = true;
}
}
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
if (!cleared)
- IWL_DEBUG_INFO(priv,
+ D_INFO(
"No active stations found to be cleared\n");
}
-EXPORT_SYMBOL(iwl_legacy_clear_ucode_stations);
+EXPORT_SYMBOL(il_clear_ucode_stations);
/**
- * iwl_legacy_restore_stations() - Restore driver known stations to device
+ * il_restore_stations() - Restore driver known stations to device
*
* All stations considered active by driver, but not present in ucode, is
* restored.
@@ -573,58 +573,58 @@
* Function sleeps.
*/
void
-iwl_legacy_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
+il_restore_stations(struct il_priv *il, struct il_rxon_context *ctx)
{
- struct iwl_legacy_addsta_cmd sta_cmd;
- struct iwl_link_quality_cmd lq;
+ struct il_addsta_cmd sta_cmd;
+ struct il_link_quality_cmd lq;
unsigned long flags_spin;
int i;
bool found = false;
int ret;
bool send_lq;
- if (!iwl_legacy_is_ready(priv)) {
- IWL_DEBUG_INFO(priv,
+ if (!il_is_ready(il)) {
+ D_INFO(
"Not ready yet, not restoring any stations.\n");
return;
}
- IWL_DEBUG_ASSOC(priv, "Restoring all known stations ... start.\n");
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- for (i = 0; i < priv->hw_params.max_stations; i++) {
- if (ctx->ctxid != priv->stations[i].ctxid)
+ D_ASSOC("Restoring all known stations ... start.\n");
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (ctx->ctxid != il->stations[i].ctxid)
continue;
- if ((priv->stations[i].used & IWL_STA_DRIVER_ACTIVE) &&
- !(priv->stations[i].used & IWL_STA_UCODE_ACTIVE)) {
- IWL_DEBUG_ASSOC(priv, "Restoring sta %pM\n",
- priv->stations[i].sta.sta.addr);
- priv->stations[i].sta.mode = 0;
- priv->stations[i].used |= IWL_STA_UCODE_INPROGRESS;
+ if ((il->stations[i].used & IL_STA_DRIVER_ACTIVE) &&
+ !(il->stations[i].used & IL_STA_UCODE_ACTIVE)) {
+ D_ASSOC("Restoring sta %pM\n",
+ il->stations[i].sta.sta.addr);
+ il->stations[i].sta.mode = 0;
+ il->stations[i].used |= IL_STA_UCODE_INPROGRESS;
found = true;
}
}
- for (i = 0; i < priv->hw_params.max_stations; i++) {
- if ((priv->stations[i].used & IWL_STA_UCODE_INPROGRESS)) {
- memcpy(&sta_cmd, &priv->stations[i].sta,
- sizeof(struct iwl_legacy_addsta_cmd));
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if ((il->stations[i].used & IL_STA_UCODE_INPROGRESS)) {
+ memcpy(&sta_cmd, &il->stations[i].sta,
+ sizeof(struct il_addsta_cmd));
send_lq = false;
- if (priv->stations[i].lq) {
- memcpy(&lq, priv->stations[i].lq,
- sizeof(struct iwl_link_quality_cmd));
+ if (il->stations[i].lq) {
+ memcpy(&lq, il->stations[i].lq,
+ sizeof(struct il_link_quality_cmd));
send_lq = true;
}
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
- ret = iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
+ ret = il_send_add_sta(il, &sta_cmd, CMD_SYNC);
if (ret) {
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- IWL_ERR(priv, "Adding station %pM failed.\n",
- priv->stations[i].sta.sta.addr);
- priv->stations[i].used &=
- ~IWL_STA_DRIVER_ACTIVE;
- priv->stations[i].used &=
- ~IWL_STA_UCODE_INPROGRESS;
- spin_unlock_irqrestore(&priv->sta_lock,
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ IL_ERR("Adding station %pM failed.\n",
+ il->stations[i].sta.sta.addr);
+ il->stations[i].used &=
+ ~IL_STA_DRIVER_ACTIVE;
+ il->stations[i].used &=
+ ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock,
flags_spin);
}
/*
@@ -632,78 +632,78 @@
* current LQ command
*/
if (send_lq)
- iwl_legacy_send_lq_cmd(priv, ctx, &lq,
+ il_send_lq_cmd(il, ctx, &lq,
CMD_SYNC, true);
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS;
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il->stations[i].used &= ~IL_STA_UCODE_INPROGRESS;
}
}
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
if (!found)
- IWL_DEBUG_INFO(priv, "Restoring all known stations"
+ D_INFO("Restoring all known stations"
" .... no stations to be restored.\n");
else
- IWL_DEBUG_INFO(priv, "Restoring all known stations"
+ D_INFO("Restoring all known stations"
" .... complete.\n");
}
-EXPORT_SYMBOL(iwl_legacy_restore_stations);
+EXPORT_SYMBOL(il_restore_stations);
-int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv)
+int il_get_free_ucode_key_idx(struct il_priv *il)
{
int i;
- for (i = 0; i < priv->sta_key_max_num; i++)
- if (!test_and_set_bit(i, &priv->ucode_key_table))
+ for (i = 0; i < il->sta_key_max_num; i++)
+ if (!test_and_set_bit(i, &il->ucode_key_table))
return i;
return WEP_INVALID_OFFSET;
}
-EXPORT_SYMBOL(iwl_legacy_get_free_ucode_key_index);
+EXPORT_SYMBOL(il_get_free_ucode_key_idx);
-void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv)
+void il_dealloc_bcast_stations(struct il_priv *il)
{
unsigned long flags;
int i;
- spin_lock_irqsave(&priv->sta_lock, flags);
- for (i = 0; i < priv->hw_params.max_stations; i++) {
- if (!(priv->stations[i].used & IWL_STA_BCAST))
+ spin_lock_irqsave(&il->sta_lock, flags);
+ for (i = 0; i < il->hw_params.max_stations; i++) {
+ if (!(il->stations[i].used & IL_STA_BCAST))
continue;
- priv->stations[i].used &= ~IWL_STA_UCODE_ACTIVE;
- priv->num_stations--;
- BUG_ON(priv->num_stations < 0);
- kfree(priv->stations[i].lq);
- priv->stations[i].lq = NULL;
+ il->stations[i].used &= ~IL_STA_UCODE_ACTIVE;
+ il->num_stations--;
+ BUG_ON(il->num_stations < 0);
+ kfree(il->stations[i].lq);
+ il->stations[i].lq = NULL;
}
- spin_unlock_irqrestore(&priv->sta_lock, flags);
+ spin_unlock_irqrestore(&il->sta_lock, flags);
}
-EXPORT_SYMBOL_GPL(iwl_legacy_dealloc_bcast_stations);
+EXPORT_SYMBOL_GPL(il_dealloc_bcast_stations);
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-static void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv,
- struct iwl_link_quality_cmd *lq)
+#ifdef CONFIG_IWLEGACY_DEBUG
+static void il_dump_lq_cmd(struct il_priv *il,
+ struct il_link_quality_cmd *lq)
{
int i;
- IWL_DEBUG_RATE(priv, "lq station id 0x%x\n", lq->sta_id);
- IWL_DEBUG_RATE(priv, "lq ant 0x%X 0x%X\n",
+ D_RATE("lq station id 0x%x\n", lq->sta_id);
+ D_RATE("lq ant 0x%X 0x%X\n",
lq->general_params.single_stream_ant_msk,
lq->general_params.dual_stream_ant_msk);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++)
- IWL_DEBUG_RATE(priv, "lq index %d 0x%X\n",
+ D_RATE("lq idx %d 0x%X\n",
i, lq->rs_table[i].rate_n_flags);
}
#else
-static inline void iwl_legacy_dump_lq_cmd(struct iwl_priv *priv,
- struct iwl_link_quality_cmd *lq)
+static inline void il_dump_lq_cmd(struct il_priv *il,
+ struct il_link_quality_cmd *lq)
{
}
#endif
/**
- * iwl_legacy_is_lq_table_valid() - Test one aspect of LQ cmd for validity
+ * il_is_lq_table_valid() - Test one aspect of LQ cmd for validity
*
* It sometimes happens when a HT rate has been in use and we
* loose connectivity with AP then mac80211 will first tell us that the
@@ -713,22 +713,22 @@
* Test for this to prevent driver from sending LQ command between the time
* RXON flags are updated and when LQ command is updated.
*/
-static bool iwl_legacy_is_lq_table_valid(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct iwl_link_quality_cmd *lq)
+static bool il_is_lq_table_valid(struct il_priv *il,
+ struct il_rxon_context *ctx,
+ struct il_link_quality_cmd *lq)
{
int i;
if (ctx->ht.enabled)
return true;
- IWL_DEBUG_INFO(priv, "Channel %u is not an HT channel\n",
+ D_INFO("Channel %u is not an HT channel\n",
ctx->active.channel);
for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) {
if (le32_to_cpu(lq->rs_table[i].rate_n_flags) &
RATE_MCS_HT_MSK) {
- IWL_DEBUG_INFO(priv,
- "index %d of LQ expects HT channel\n",
+ D_INFO(
+ "idx %d of LQ expects HT channel\n",
i);
return false;
}
@@ -737,7 +737,7 @@
}
/**
- * iwl_legacy_send_lq_cmd() - Send link quality command
+ * il_send_lq_cmd() - Send link quality command
* @init: This command is sent as part of station initialization right
* after station has been added.
*
@@ -746,35 +746,35 @@
* this case to clear the state indicating that station creation is in
* progress.
*/
-int iwl_legacy_send_lq_cmd(struct iwl_priv *priv, struct iwl_rxon_context *ctx,
- struct iwl_link_quality_cmd *lq, u8 flags, bool init)
+int il_send_lq_cmd(struct il_priv *il, struct il_rxon_context *ctx,
+ struct il_link_quality_cmd *lq, u8 flags, bool init)
{
int ret = 0;
unsigned long flags_spin;
- struct iwl_host_cmd cmd = {
- .id = REPLY_TX_LINK_QUALITY_CMD,
- .len = sizeof(struct iwl_link_quality_cmd),
+ struct il_host_cmd cmd = {
+ .id = C_TX_LINK_QUALITY_CMD,
+ .len = sizeof(struct il_link_quality_cmd),
.flags = flags,
.data = lq,
};
- if (WARN_ON(lq->sta_id == IWL_INVALID_STATION))
+ if (WARN_ON(lq->sta_id == IL_INVALID_STATION))
return -EINVAL;
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- if (!(priv->stations[lq->sta_id].used & IWL_STA_DRIVER_ACTIVE)) {
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ if (!(il->stations[lq->sta_id].used & IL_STA_DRIVER_ACTIVE)) {
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
return -EINVAL;
}
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
- iwl_legacy_dump_lq_cmd(priv, lq);
+ il_dump_lq_cmd(il, lq);
BUG_ON(init && (cmd.flags & CMD_ASYNC));
- if (iwl_legacy_is_lq_table_valid(priv, ctx, lq))
- ret = iwl_legacy_send_cmd(priv, &cmd);
+ if (il_is_lq_table_valid(il, ctx, lq))
+ ret = il_send_cmd(il, &cmd);
else
ret = -EINVAL;
@@ -782,35 +782,35 @@
return ret;
if (init) {
- IWL_DEBUG_INFO(priv, "init LQ command complete,"
+ D_INFO("init LQ command complete,"
" clearing sta addition status for sta %d\n",
lq->sta_id);
- spin_lock_irqsave(&priv->sta_lock, flags_spin);
- priv->stations[lq->sta_id].used &= ~IWL_STA_UCODE_INPROGRESS;
- spin_unlock_irqrestore(&priv->sta_lock, flags_spin);
+ spin_lock_irqsave(&il->sta_lock, flags_spin);
+ il->stations[lq->sta_id].used &= ~IL_STA_UCODE_INPROGRESS;
+ spin_unlock_irqrestore(&il->sta_lock, flags_spin);
}
return ret;
}
-EXPORT_SYMBOL(iwl_legacy_send_lq_cmd);
+EXPORT_SYMBOL(il_send_lq_cmd);
-int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
+int il_mac_sta_remove(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_sta *sta)
{
- struct iwl_priv *priv = hw->priv;
- struct iwl_station_priv_common *sta_common = (void *)sta->drv_priv;
+ struct il_priv *il = hw->priv;
+ struct il_station_priv_common *sta_common = (void *)sta->drv_priv;
int ret;
- IWL_DEBUG_INFO(priv, "received request to remove station %pM\n",
+ D_INFO("received request to remove station %pM\n",
sta->addr);
- mutex_lock(&priv->mutex);
- IWL_DEBUG_INFO(priv, "proceeding to remove station %pM\n",
+ mutex_lock(&il->mutex);
+ D_INFO("proceeding to remove station %pM\n",
sta->addr);
- ret = iwl_legacy_remove_station(priv, sta_common->sta_id, sta->addr);
+ ret = il_remove_station(il, sta_common->sta_id, sta->addr);
if (ret)
- IWL_ERR(priv, "Error removing station %pM\n",
+ IL_ERR("Error removing station %pM\n",
sta->addr);
- mutex_unlock(&priv->mutex);
+ mutex_unlock(&il->mutex);
return ret;
}
-EXPORT_SYMBOL(iwl_legacy_mac_sta_remove);
+EXPORT_SYMBOL(il_mac_sta_remove);
diff --git a/drivers/net/wireless/iwlegacy/iwl-sta.h b/drivers/net/wireless/iwlegacy/iwl-sta.h
deleted file mode 100644
index 67bd75fe..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-sta.h
+++ /dev/null
@@ -1,148 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-#ifndef __iwl_legacy_sta_h__
-#define __iwl_legacy_sta_h__
-
-#include "iwl-dev.h"
-
-#define HW_KEY_DYNAMIC 0
-#define HW_KEY_DEFAULT 1
-
-#define IWL_STA_DRIVER_ACTIVE BIT(0) /* driver entry is active */
-#define IWL_STA_UCODE_ACTIVE BIT(1) /* ucode entry is active */
-#define IWL_STA_UCODE_INPROGRESS BIT(2) /* ucode entry is in process of
- being activated */
-#define IWL_STA_LOCAL BIT(3) /* station state not directed by mac80211;
- (this is for the IBSS BSSID stations) */
-#define IWL_STA_BCAST BIT(4) /* this station is the special bcast station */
-
-
-void iwl_legacy_restore_stations(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-void iwl_legacy_clear_ucode_stations(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx);
-void iwl_legacy_dealloc_bcast_stations(struct iwl_priv *priv);
-int iwl_legacy_get_free_ucode_key_index(struct iwl_priv *priv);
-int iwl_legacy_send_add_sta(struct iwl_priv *priv,
- struct iwl_legacy_addsta_cmd *sta, u8 flags);
-int iwl_legacy_add_station_common(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- const u8 *addr, bool is_ap,
- struct ieee80211_sta *sta, u8 *sta_id_r);
-int iwl_legacy_remove_station(struct iwl_priv *priv,
- const u8 sta_id,
- const u8 *addr);
-int iwl_legacy_mac_sta_remove(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta);
-
-u8 iwl_legacy_prep_station(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- const u8 *addr, bool is_ap,
- struct ieee80211_sta *sta);
-
-int iwl_legacy_send_lq_cmd(struct iwl_priv *priv,
- struct iwl_rxon_context *ctx,
- struct iwl_link_quality_cmd *lq,
- u8 flags, bool init);
-
-/**
- * iwl_legacy_clear_driver_stations - clear knowledge of all stations from driver
- * @priv: iwl priv struct
- *
- * This is called during iwl_down() to make sure that in the case
- * we're coming there from a hardware restart mac80211 will be
- * able to reconfigure stations -- if we're getting there in the
- * normal down flow then the stations will already be cleared.
- */
-static inline void iwl_legacy_clear_driver_stations(struct iwl_priv *priv)
-{
- unsigned long flags;
- struct iwl_rxon_context *ctx;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- memset(priv->stations, 0, sizeof(priv->stations));
- priv->num_stations = 0;
-
- priv->ucode_key_table = 0;
-
- for_each_context(priv, ctx) {
- /*
- * Remove all key information that is not stored as part
- * of station information since mac80211 may not have had
- * a chance to remove all the keys. When device is
- * reconfigured by mac80211 after an error all keys will
- * be reconfigured.
- */
- memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
- ctx->key_mapping_keys = 0;
- }
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-}
-
-static inline int iwl_legacy_sta_id(struct ieee80211_sta *sta)
-{
- if (WARN_ON(!sta))
- return IWL_INVALID_STATION;
-
- return ((struct iwl_station_priv_common *)sta->drv_priv)->sta_id;
-}
-
-/**
- * iwl_legacy_sta_id_or_broadcast - return sta_id or broadcast sta
- * @priv: iwl priv
- * @context: the current context
- * @sta: mac80211 station
- *
- * In certain circumstances mac80211 passes a station pointer
- * that may be %NULL, for example during TX or key setup. In
- * that case, we need to use the broadcast station, so this
- * inline wraps that pattern.
- */
-static inline int iwl_legacy_sta_id_or_broadcast(struct iwl_priv *priv,
- struct iwl_rxon_context *context,
- struct ieee80211_sta *sta)
-{
- int sta_id;
-
- if (!sta)
- return context->bcast_sta_id;
-
- sta_id = iwl_legacy_sta_id(sta);
-
- /*
- * mac80211 should not be passing a partially
- * initialised station!
- */
- WARN_ON(sta_id == IWL_INVALID_STATION);
-
- return sta_id;
-}
-#endif /* __iwl_legacy_sta_h__ */
diff --git a/drivers/net/wireless/iwlegacy/iwl-tx.c b/drivers/net/wireless/iwlegacy/iwl-tx.c
deleted file mode 100644
index ef9e268..0000000
--- a/drivers/net/wireless/iwlegacy/iwl-tx.c
+++ /dev/null
@@ -1,658 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#include <linux/etherdevice.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <net/mac80211.h>
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-sta.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-
-/**
- * iwl_legacy_txq_update_write_ptr - Send new write index to hardware
- */
-void
-iwl_legacy_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- u32 reg = 0;
- int txq_id = txq->q.id;
-
- if (txq->need_update == 0)
- return;
-
- /* if we're trying to save power */
- if (test_bit(STATUS_POWER_PMI, &priv->status)) {
- /* wake up nic if it's powered down ...
- * uCode will wake up, and interrupt us again, so next
- * time we'll skip this part. */
- reg = iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) {
- IWL_DEBUG_INFO(priv,
- "Tx queue %d requesting wakeup,"
- " GP1 = 0x%x\n", txq_id, reg);
- iwl_legacy_set_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
- return;
- }
-
- iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
-
- /*
- * else not in power-save mode,
- * uCode will never sleep when we're
- * trying to tx (during RFKILL, we're not trying to tx).
- */
- } else
- iwl_write32(priv, HBUS_TARG_WRPTR,
- txq->q.write_ptr | (txq_id << 8));
- txq->need_update = 0;
-}
-EXPORT_SYMBOL(iwl_legacy_txq_update_write_ptr);
-
-/**
- * iwl_legacy_tx_queue_unmap - Unmap any remaining DMA mappings and free skb's
- */
-void iwl_legacy_tx_queue_unmap(struct iwl_priv *priv, int txq_id)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
-
- if (q->n_bd == 0)
- return;
-
- while (q->write_ptr != q->read_ptr) {
- priv->cfg->ops->lib->txq_free_tfd(priv, txq);
- q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd);
- }
-}
-EXPORT_SYMBOL(iwl_legacy_tx_queue_unmap);
-
-/**
- * iwl_legacy_tx_queue_free - Deallocate DMA queue.
- * @txq: Transmit queue to deallocate.
- *
- * Empty queue by removing and destroying all BD's.
- * Free all buffers.
- * 0-fill, but do not free "txq" descriptor structure.
- */
-void iwl_legacy_tx_queue_free(struct iwl_priv *priv, int txq_id)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct device *dev = &priv->pci_dev->dev;
- int i;
-
- iwl_legacy_tx_queue_unmap(priv, txq_id);
-
- /* De-alloc array of command/tx buffers */
- for (i = 0; i < TFD_TX_CMD_SLOTS; i++)
- kfree(txq->cmd[i]);
-
- /* De-alloc circular buffer of TFDs */
- if (txq->q.n_bd)
- dma_free_coherent(dev, priv->hw_params.tfd_size *
- txq->q.n_bd, txq->tfds, txq->q.dma_addr);
-
- /* De-alloc array of per-TFD driver data */
- kfree(txq->txb);
- txq->txb = NULL;
-
- /* deallocate arrays */
- kfree(txq->cmd);
- kfree(txq->meta);
- txq->cmd = NULL;
- txq->meta = NULL;
-
- /* 0-fill queue descriptor structure */
- memset(txq, 0, sizeof(*txq));
-}
-EXPORT_SYMBOL(iwl_legacy_tx_queue_free);
-
-/**
- * iwl_cmd_queue_unmap - Unmap any remaining DMA mappings from command queue
- */
-void iwl_legacy_cmd_queue_unmap(struct iwl_priv *priv)
-{
- struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
- struct iwl_queue *q = &txq->q;
- int i;
-
- if (q->n_bd == 0)
- return;
-
- while (q->read_ptr != q->write_ptr) {
- i = iwl_legacy_get_cmd_index(q, q->read_ptr, 0);
-
- if (txq->meta[i].flags & CMD_MAPPED) {
- pci_unmap_single(priv->pci_dev,
- dma_unmap_addr(&txq->meta[i], mapping),
- dma_unmap_len(&txq->meta[i], len),
- PCI_DMA_BIDIRECTIONAL);
- txq->meta[i].flags = 0;
- }
-
- q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd);
- }
-
- i = q->n_window;
- if (txq->meta[i].flags & CMD_MAPPED) {
- pci_unmap_single(priv->pci_dev,
- dma_unmap_addr(&txq->meta[i], mapping),
- dma_unmap_len(&txq->meta[i], len),
- PCI_DMA_BIDIRECTIONAL);
- txq->meta[i].flags = 0;
- }
-}
-EXPORT_SYMBOL(iwl_legacy_cmd_queue_unmap);
-
-/**
- * iwl_legacy_cmd_queue_free - Deallocate DMA queue.
- * @txq: Transmit queue to deallocate.
- *
- * Empty queue by removing and destroying all BD's.
- * Free all buffers.
- * 0-fill, but do not free "txq" descriptor structure.
- */
-void iwl_legacy_cmd_queue_free(struct iwl_priv *priv)
-{
- struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
- struct device *dev = &priv->pci_dev->dev;
- int i;
-
- iwl_legacy_cmd_queue_unmap(priv);
-
- /* De-alloc array of command/tx buffers */
- for (i = 0; i <= TFD_CMD_SLOTS; i++)
- kfree(txq->cmd[i]);
-
- /* De-alloc circular buffer of TFDs */
- if (txq->q.n_bd)
- dma_free_coherent(dev, priv->hw_params.tfd_size * txq->q.n_bd,
- txq->tfds, txq->q.dma_addr);
-
- /* deallocate arrays */
- kfree(txq->cmd);
- kfree(txq->meta);
- txq->cmd = NULL;
- txq->meta = NULL;
-
- /* 0-fill queue descriptor structure */
- memset(txq, 0, sizeof(*txq));
-}
-EXPORT_SYMBOL(iwl_legacy_cmd_queue_free);
-
-/*************** DMA-QUEUE-GENERAL-FUNCTIONS *****
- * DMA services
- *
- * Theory of operation
- *
- * A Tx or Rx queue resides in host DRAM, and is comprised of a circular buffer
- * of buffer descriptors, each of which points to one or more data buffers for
- * the device to read from or fill. Driver and device exchange status of each
- * queue via "read" and "write" pointers. Driver keeps minimum of 2 empty
- * entries in each circular buffer, to protect against confusing empty and full
- * queue states.
- *
- * The device reads or writes the data in the queues via the device's several
- * DMA/FIFO channels. Each queue is mapped to a single DMA channel.
- *
- * For Tx queue, there are low mark and high mark limits. If, after queuing
- * the packet for Tx, free space become < low mark, Tx queue stopped. When
- * reclaiming packets (on 'tx done IRQ), if free space become > high mark,
- * Tx queue resumed.
- *
- * See more detailed info in iwl-4965-hw.h.
- ***************************************************/
-
-int iwl_legacy_queue_space(const struct iwl_queue *q)
-{
- int s = q->read_ptr - q->write_ptr;
-
- if (q->read_ptr > q->write_ptr)
- s -= q->n_bd;
-
- if (s <= 0)
- s += q->n_window;
- /* keep some reserve to not confuse empty and full situations */
- s -= 2;
- if (s < 0)
- s = 0;
- return s;
-}
-EXPORT_SYMBOL(iwl_legacy_queue_space);
-
-
-/**
- * iwl_legacy_queue_init - Initialize queue's high/low-water and read/write indexes
- */
-static int iwl_legacy_queue_init(struct iwl_priv *priv, struct iwl_queue *q,
- int count, int slots_num, u32 id)
-{
- q->n_bd = count;
- q->n_window = slots_num;
- q->id = id;
-
- /* count must be power-of-two size, otherwise iwl_legacy_queue_inc_wrap
- * and iwl_legacy_queue_dec_wrap are broken. */
- BUG_ON(!is_power_of_2(count));
-
- /* slots_num must be power-of-two size, otherwise
- * iwl_legacy_get_cmd_index is broken. */
- BUG_ON(!is_power_of_2(slots_num));
-
- q->low_mark = q->n_window / 4;
- if (q->low_mark < 4)
- q->low_mark = 4;
-
- q->high_mark = q->n_window / 8;
- if (q->high_mark < 2)
- q->high_mark = 2;
-
- q->write_ptr = q->read_ptr = 0;
-
- return 0;
-}
-
-/**
- * iwl_legacy_tx_queue_alloc - Alloc driver data and TFD CB for one Tx/cmd queue
- */
-static int iwl_legacy_tx_queue_alloc(struct iwl_priv *priv,
- struct iwl_tx_queue *txq, u32 id)
-{
- struct device *dev = &priv->pci_dev->dev;
- size_t tfd_sz = priv->hw_params.tfd_size * TFD_QUEUE_SIZE_MAX;
-
- /* Driver private data, only for Tx (not command) queues,
- * not shared with device. */
- if (id != priv->cmd_queue) {
- txq->txb = kzalloc(sizeof(txq->txb[0]) *
- TFD_QUEUE_SIZE_MAX, GFP_KERNEL);
- if (!txq->txb) {
- IWL_ERR(priv, "kmalloc for auxiliary BD "
- "structures failed\n");
- goto error;
- }
- } else {
- txq->txb = NULL;
- }
-
- /* Circular buffer of transmit frame descriptors (TFDs),
- * shared with device */
- txq->tfds = dma_alloc_coherent(dev, tfd_sz, &txq->q.dma_addr,
- GFP_KERNEL);
- if (!txq->tfds) {
- IWL_ERR(priv, "pci_alloc_consistent(%zd) failed\n", tfd_sz);
- goto error;
- }
- txq->q.id = id;
-
- return 0;
-
- error:
- kfree(txq->txb);
- txq->txb = NULL;
-
- return -ENOMEM;
-}
-
-/**
- * iwl_legacy_tx_queue_init - Allocate and initialize one tx/cmd queue
- */
-int iwl_legacy_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id)
-{
- int i, len;
- int ret;
- int actual_slots = slots_num;
-
- /*
- * Alloc buffer array for commands (Tx or other types of commands).
- * For the command queue (#4/#9), allocate command space + one big
- * command for scan, since scan command is very huge; the system will
- * not have two scans at the same time, so only one is needed.
- * For normal Tx queues (all other queues), no super-size command
- * space is needed.
- */
- if (txq_id == priv->cmd_queue)
- actual_slots++;
-
- txq->meta = kzalloc(sizeof(struct iwl_cmd_meta) * actual_slots,
- GFP_KERNEL);
- txq->cmd = kzalloc(sizeof(struct iwl_device_cmd *) * actual_slots,
- GFP_KERNEL);
-
- if (!txq->meta || !txq->cmd)
- goto out_free_arrays;
-
- len = sizeof(struct iwl_device_cmd);
- for (i = 0; i < actual_slots; i++) {
- /* only happens for cmd queue */
- if (i == slots_num)
- len = IWL_MAX_CMD_SIZE;
-
- txq->cmd[i] = kmalloc(len, GFP_KERNEL);
- if (!txq->cmd[i])
- goto err;
- }
-
- /* Alloc driver data array and TFD circular buffer */
- ret = iwl_legacy_tx_queue_alloc(priv, txq, txq_id);
- if (ret)
- goto err;
-
- txq->need_update = 0;
-
- /*
- * For the default queues 0-3, set up the swq_id
- * already -- all others need to get one later
- * (if they need one at all).
- */
- if (txq_id < 4)
- iwl_legacy_set_swq_id(txq, txq_id, txq_id);
-
- /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise
- * iwl_legacy_queue_inc_wrap and iwl_legacy_queue_dec_wrap are broken. */
- BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1));
-
- /* Initialize queue's high/low-water marks, and head/tail indexes */
- iwl_legacy_queue_init(priv, &txq->q,
- TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
-
- /* Tell device where to find queue */
- priv->cfg->ops->lib->txq_init(priv, txq);
-
- return 0;
-err:
- for (i = 0; i < actual_slots; i++)
- kfree(txq->cmd[i]);
-out_free_arrays:
- kfree(txq->meta);
- kfree(txq->cmd);
-
- return -ENOMEM;
-}
-EXPORT_SYMBOL(iwl_legacy_tx_queue_init);
-
-void iwl_legacy_tx_queue_reset(struct iwl_priv *priv, struct iwl_tx_queue *txq,
- int slots_num, u32 txq_id)
-{
- int actual_slots = slots_num;
-
- if (txq_id == priv->cmd_queue)
- actual_slots++;
-
- memset(txq->meta, 0, sizeof(struct iwl_cmd_meta) * actual_slots);
-
- txq->need_update = 0;
-
- /* Initialize queue's high/low-water marks, and head/tail indexes */
- iwl_legacy_queue_init(priv, &txq->q,
- TFD_QUEUE_SIZE_MAX, slots_num, txq_id);
-
- /* Tell device where to find queue */
- priv->cfg->ops->lib->txq_init(priv, txq);
-}
-EXPORT_SYMBOL(iwl_legacy_tx_queue_reset);
-
-/*************** HOST COMMAND QUEUE FUNCTIONS *****/
-
-/**
- * iwl_legacy_enqueue_hcmd - enqueue a uCode command
- * @priv: device private data point
- * @cmd: a point to the ucode command structure
- *
- * The function returns < 0 values to indicate the operation is
- * failed. On success, it turns the index (> 0) of command in the
- * command queue.
- */
-int iwl_legacy_enqueue_hcmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
-{
- struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
- struct iwl_queue *q = &txq->q;
- struct iwl_device_cmd *out_cmd;
- struct iwl_cmd_meta *out_meta;
- dma_addr_t phys_addr;
- unsigned long flags;
- int len;
- u32 idx;
- u16 fix_size;
-
- cmd->len = priv->cfg->ops->utils->get_hcmd_size(cmd->id, cmd->len);
- fix_size = (u16)(cmd->len + sizeof(out_cmd->hdr));
-
- /* If any of the command structures end up being larger than
- * the TFD_MAX_PAYLOAD_SIZE, and it sent as a 'small' command then
- * we will need to increase the size of the TFD entries
- * Also, check to see if command buffer should not exceed the size
- * of device_cmd and max_cmd_size. */
- BUG_ON((fix_size > TFD_MAX_PAYLOAD_SIZE) &&
- !(cmd->flags & CMD_SIZE_HUGE));
- BUG_ON(fix_size > IWL_MAX_CMD_SIZE);
-
- if (iwl_legacy_is_rfkill(priv) || iwl_legacy_is_ctkill(priv)) {
- IWL_WARN(priv, "Not sending command - %s KILL\n",
- iwl_legacy_is_rfkill(priv) ? "RF" : "CT");
- return -EIO;
- }
-
- spin_lock_irqsave(&priv->hcmd_lock, flags);
-
- if (iwl_legacy_queue_space(q) < ((cmd->flags & CMD_ASYNC) ? 2 : 1)) {
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
-
- IWL_ERR(priv, "Restarting adapter due to command queue full\n");
- queue_work(priv->workqueue, &priv->restart);
- return -ENOSPC;
- }
-
- idx = iwl_legacy_get_cmd_index(q, q->write_ptr, cmd->flags & CMD_SIZE_HUGE);
- out_cmd = txq->cmd[idx];
- out_meta = &txq->meta[idx];
-
- if (WARN_ON(out_meta->flags & CMD_MAPPED)) {
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
- return -ENOSPC;
- }
-
- memset(out_meta, 0, sizeof(*out_meta)); /* re-initialize to NULL */
- out_meta->flags = cmd->flags | CMD_MAPPED;
- if (cmd->flags & CMD_WANT_SKB)
- out_meta->source = cmd;
- if (cmd->flags & CMD_ASYNC)
- out_meta->callback = cmd->callback;
-
- out_cmd->hdr.cmd = cmd->id;
- memcpy(&out_cmd->cmd.payload, cmd->data, cmd->len);
-
- /* At this point, the out_cmd now has all of the incoming cmd
- * information */
-
- out_cmd->hdr.flags = 0;
- out_cmd->hdr.sequence = cpu_to_le16(QUEUE_TO_SEQ(priv->cmd_queue) |
- INDEX_TO_SEQ(q->write_ptr));
- if (cmd->flags & CMD_SIZE_HUGE)
- out_cmd->hdr.sequence |= SEQ_HUGE_FRAME;
- len = sizeof(struct iwl_device_cmd);
- if (idx == TFD_CMD_SLOTS)
- len = IWL_MAX_CMD_SIZE;
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- switch (out_cmd->hdr.cmd) {
- case REPLY_TX_LINK_QUALITY_CMD:
- case SENSITIVITY_CMD:
- IWL_DEBUG_HC_DUMP(priv,
- "Sending command %s (#%x), seq: 0x%04X, "
- "%d bytes at %d[%d]:%d\n",
- iwl_legacy_get_cmd_string(out_cmd->hdr.cmd),
- out_cmd->hdr.cmd,
- le16_to_cpu(out_cmd->hdr.sequence), fix_size,
- q->write_ptr, idx, priv->cmd_queue);
- break;
- default:
- IWL_DEBUG_HC(priv, "Sending command %s (#%x), seq: 0x%04X, "
- "%d bytes at %d[%d]:%d\n",
- iwl_legacy_get_cmd_string(out_cmd->hdr.cmd),
- out_cmd->hdr.cmd,
- le16_to_cpu(out_cmd->hdr.sequence), fix_size,
- q->write_ptr, idx, priv->cmd_queue);
- }
-#endif
- txq->need_update = 1;
-
- if (priv->cfg->ops->lib->txq_update_byte_cnt_tbl)
- /* Set up entry in queue's byte count circular buffer */
- priv->cfg->ops->lib->txq_update_byte_cnt_tbl(priv, txq, 0);
-
- phys_addr = pci_map_single(priv->pci_dev, &out_cmd->hdr,
- fix_size, PCI_DMA_BIDIRECTIONAL);
- dma_unmap_addr_set(out_meta, mapping, phys_addr);
- dma_unmap_len_set(out_meta, len, fix_size);
-
- trace_iwlwifi_legacy_dev_hcmd(priv, &out_cmd->hdr,
- fix_size, cmd->flags);
-
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- phys_addr, fix_size, 1,
- U32_PAD(cmd->len));
-
- /* Increment and update queue's write index */
- q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd);
- iwl_legacy_txq_update_write_ptr(priv, txq);
-
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
- return idx;
-}
-
-/**
- * iwl_legacy_hcmd_queue_reclaim - Reclaim TX command queue entries already Tx'd
- *
- * When FW advances 'R' index, all entries between old and new 'R' index
- * need to be reclaimed. As result, some free space forms. If there is
- * enough free space (> low mark), wake the stack that feeds us.
- */
-static void iwl_legacy_hcmd_queue_reclaim(struct iwl_priv *priv, int txq_id,
- int idx, int cmd_idx)
-{
- struct iwl_tx_queue *txq = &priv->txq[txq_id];
- struct iwl_queue *q = &txq->q;
- int nfreed = 0;
-
- if ((idx >= q->n_bd) || (iwl_legacy_queue_used(q, idx) == 0)) {
- IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
- "is out of range [0-%d] %d %d.\n", txq_id,
- idx, q->n_bd, q->write_ptr, q->read_ptr);
- return;
- }
-
- for (idx = iwl_legacy_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx;
- q->read_ptr = iwl_legacy_queue_inc_wrap(q->read_ptr, q->n_bd)) {
-
- if (nfreed++ > 0) {
- IWL_ERR(priv, "HCMD skipped: index (%d) %d %d\n", idx,
- q->write_ptr, q->read_ptr);
- queue_work(priv->workqueue, &priv->restart);
- }
-
- }
-}
-
-/**
- * iwl_legacy_tx_cmd_complete - Pull unused buffers off the queue and reclaim them
- * @rxb: Rx buffer to reclaim
- *
- * If an Rx buffer has an async callback associated with it the callback
- * will be executed. The attached skb (if present) will only be freed
- * if the callback returns 1
- */
-void
-iwl_legacy_tx_cmd_complete(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u16 sequence = le16_to_cpu(pkt->hdr.sequence);
- int txq_id = SEQ_TO_QUEUE(sequence);
- int index = SEQ_TO_INDEX(sequence);
- int cmd_index;
- bool huge = !!(pkt->hdr.sequence & SEQ_HUGE_FRAME);
- struct iwl_device_cmd *cmd;
- struct iwl_cmd_meta *meta;
- struct iwl_tx_queue *txq = &priv->txq[priv->cmd_queue];
- unsigned long flags;
-
- /* If a Tx command is being handled and it isn't in the actual
- * command queue then there a command routing bug has been introduced
- * in the queue management code. */
- if (WARN(txq_id != priv->cmd_queue,
- "wrong command queue %d (should be %d), sequence 0x%X readp=%d writep=%d\n",
- txq_id, priv->cmd_queue, sequence,
- priv->txq[priv->cmd_queue].q.read_ptr,
- priv->txq[priv->cmd_queue].q.write_ptr)) {
- iwl_print_hex_error(priv, pkt, 32);
- return;
- }
-
- cmd_index = iwl_legacy_get_cmd_index(&txq->q, index, huge);
- cmd = txq->cmd[cmd_index];
- meta = &txq->meta[cmd_index];
-
- txq->time_stamp = jiffies;
-
- pci_unmap_single(priv->pci_dev,
- dma_unmap_addr(meta, mapping),
- dma_unmap_len(meta, len),
- PCI_DMA_BIDIRECTIONAL);
-
- /* Input error checking is done when commands are added to queue. */
- if (meta->flags & CMD_WANT_SKB) {
- meta->source->reply_page = (unsigned long)rxb_addr(rxb);
- rxb->page = NULL;
- } else if (meta->callback)
- meta->callback(priv, cmd, pkt);
-
- spin_lock_irqsave(&priv->hcmd_lock, flags);
-
- iwl_legacy_hcmd_queue_reclaim(priv, txq_id, index, cmd_index);
-
- if (!(meta->flags & CMD_ASYNC)) {
- clear_bit(STATUS_HCMD_ACTIVE, &priv->status);
- IWL_DEBUG_INFO(priv, "Clearing HCMD_ACTIVE for command %s\n",
- iwl_legacy_get_cmd_string(cmd->hdr.cmd));
- wake_up(&priv->wait_command_queue);
- }
-
- /* Mark as unmapped */
- meta->flags = 0;
-
- spin_unlock_irqrestore(&priv->hcmd_lock, flags);
-}
-EXPORT_SYMBOL(iwl_legacy_tx_cmd_complete);
diff --git a/drivers/net/wireless/iwlegacy/iwl3945-base.c b/drivers/net/wireless/iwlegacy/iwl3945-base.c
deleted file mode 100644
index b282d86..0000000
--- a/drivers/net/wireless/iwlegacy/iwl3945-base.c
+++ /dev/null
@@ -1,4016 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/pci-aspm.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-
-#include <net/ieee80211_radiotap.h>
-#include <net/mac80211.h>
-
-#include <asm/div64.h>
-
-#define DRV_NAME "iwl3945"
-
-#include "iwl-fh.h"
-#include "iwl-3945-fh.h"
-#include "iwl-commands.h"
-#include "iwl-sta.h"
-#include "iwl-3945.h"
-#include "iwl-core.h"
-#include "iwl-helpers.h"
-#include "iwl-dev.h"
-#include "iwl-spectrum.h"
-
-/*
- * module name, copyright, version, etc.
- */
-
-#define DRV_DESCRIPTION \
-"Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux"
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-/*
- * add "s" to indicate spectrum measurement included.
- * we add it here to be consistent with previous releases in which
- * this was configurable.
- */
-#define DRV_VERSION IWLWIFI_VERSION VD "s"
-#define DRV_COPYRIGHT "Copyright(c) 2003-2011 Intel Corporation"
-#define DRV_AUTHOR "<ilw@linux.intel.com>"
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
-MODULE_LICENSE("GPL");
-
- /* module parameters */
-struct iwl_mod_params iwl3945_mod_params = {
- .sw_crypto = 1,
- .restart_fw = 1,
- .disable_hw_scan = 1,
- /* the rest are 0 by default */
-};
-
-/**
- * iwl3945_get_antenna_flags - Get antenna flags for RXON command
- * @priv: eeprom and antenna fields are used to determine antenna flags
- *
- * priv->eeprom39 is used to determine if antenna AUX/MAIN are reversed
- * iwl3945_mod_params.antenna specifies the antenna diversity mode:
- *
- * IWL_ANTENNA_DIVERSITY - NIC selects best antenna by itself
- * IWL_ANTENNA_MAIN - Force MAIN antenna
- * IWL_ANTENNA_AUX - Force AUX antenna
- */
-__le32 iwl3945_get_antenna_flags(const struct iwl_priv *priv)
-{
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
-
- switch (iwl3945_mod_params.antenna) {
- case IWL_ANTENNA_DIVERSITY:
- return 0;
-
- case IWL_ANTENNA_MAIN:
- if (eeprom->antenna_switch_type)
- return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
- return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
-
- case IWL_ANTENNA_AUX:
- if (eeprom->antenna_switch_type)
- return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_A_MSK;
- return RXON_FLG_DIS_DIV_MSK | RXON_FLG_ANT_B_MSK;
- }
-
- /* bad antenna selector value */
- IWL_ERR(priv, "Bad antenna selector value (0x%x)\n",
- iwl3945_mod_params.antenna);
-
- return 0; /* "diversity" is default if error */
-}
-
-static int iwl3945_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- unsigned long flags;
- __le16 key_flags = 0;
- int ret;
-
- key_flags |= (STA_KEY_FLG_CCMP | STA_KEY_FLG_MAP_KEY_MSK);
- key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS);
-
- if (sta_id == priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id)
- key_flags |= STA_KEY_MULTICAST_MSK;
-
- keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
- keyconf->hw_key_idx = keyconf->keyidx;
- key_flags &= ~STA_KEY_FLG_INVALID;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
- priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
- memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
- keyconf->keylen);
-
- memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
- keyconf->keylen);
-
- if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
- == STA_KEY_FLG_NO_ENC)
- priv->stations[sta_id].sta.key.key_offset =
- iwl_legacy_get_free_ucode_key_index(priv);
- /* else, we are overriding an existing key => no need to allocated room
- * in uCode. */
-
- WARN(priv->stations[sta_id].sta.key.key_offset == WEP_INVALID_OFFSET,
- "no space for a new key");
-
- priv->stations[sta_id].sta.key.key_flags = key_flags;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
-
- IWL_DEBUG_INFO(priv, "hwcrypto: modify ucode station key info\n");
-
- ret = iwl_legacy_send_add_sta(priv,
- &priv->stations[sta_id].sta, CMD_ASYNC);
-
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return ret;
-}
-
-static int iwl3945_set_tkip_dynamic_key_info(struct iwl_priv *priv,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- return -EOPNOTSUPP;
-}
-
-static int iwl3945_set_wep_dynamic_key_info(struct iwl_priv *priv,
- struct ieee80211_key_conf *keyconf,
- u8 sta_id)
-{
- return -EOPNOTSUPP;
-}
-
-static int iwl3945_clear_sta_key_info(struct iwl_priv *priv, u8 sta_id)
-{
- unsigned long flags;
- struct iwl_legacy_addsta_cmd sta_cmd;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- memset(&priv->stations[sta_id].keyinfo, 0, sizeof(struct iwl_hw_key));
- memset(&priv->stations[sta_id].sta.key, 0,
- sizeof(struct iwl4965_keyinfo));
- priv->stations[sta_id].sta.key.key_flags = STA_KEY_FLG_NO_ENC;
- priv->stations[sta_id].sta.sta.modify_mask = STA_MODIFY_KEY_MASK;
- priv->stations[sta_id].sta.mode = STA_CONTROL_MODIFY_MSK;
- memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_legacy_addsta_cmd));
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- IWL_DEBUG_INFO(priv, "hwcrypto: clear ucode station key info\n");
- return iwl_legacy_send_add_sta(priv, &sta_cmd, CMD_SYNC);
-}
-
-static int iwl3945_set_dynamic_key(struct iwl_priv *priv,
- struct ieee80211_key_conf *keyconf, u8 sta_id)
-{
- int ret = 0;
-
- keyconf->hw_key_idx = HW_KEY_DYNAMIC;
-
- switch (keyconf->cipher) {
- case WLAN_CIPHER_SUITE_CCMP:
- ret = iwl3945_set_ccmp_dynamic_key_info(priv, keyconf, sta_id);
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- ret = iwl3945_set_tkip_dynamic_key_info(priv, keyconf, sta_id);
- break;
- case WLAN_CIPHER_SUITE_WEP40:
- case WLAN_CIPHER_SUITE_WEP104:
- ret = iwl3945_set_wep_dynamic_key_info(priv, keyconf, sta_id);
- break;
- default:
- IWL_ERR(priv, "Unknown alg: %s alg=%x\n", __func__,
- keyconf->cipher);
- ret = -EINVAL;
- }
-
- IWL_DEBUG_WEP(priv, "Set dynamic key: alg=%x len=%d idx=%d sta=%d ret=%d\n",
- keyconf->cipher, keyconf->keylen, keyconf->keyidx,
- sta_id, ret);
-
- return ret;
-}
-
-static int iwl3945_remove_static_key(struct iwl_priv *priv)
-{
- int ret = -EOPNOTSUPP;
-
- return ret;
-}
-
-static int iwl3945_set_static_key(struct iwl_priv *priv,
- struct ieee80211_key_conf *key)
-{
- if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
- key->cipher == WLAN_CIPHER_SUITE_WEP104)
- return -EOPNOTSUPP;
-
- IWL_ERR(priv, "Static key invalid: cipher %x\n", key->cipher);
- return -EINVAL;
-}
-
-static void iwl3945_clear_free_frames(struct iwl_priv *priv)
-{
- struct list_head *element;
-
- IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
- priv->frames_count);
-
- while (!list_empty(&priv->free_frames)) {
- element = priv->free_frames.next;
- list_del(element);
- kfree(list_entry(element, struct iwl3945_frame, list));
- priv->frames_count--;
- }
-
- if (priv->frames_count) {
- IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
- priv->frames_count);
- priv->frames_count = 0;
- }
-}
-
-static struct iwl3945_frame *iwl3945_get_free_frame(struct iwl_priv *priv)
-{
- struct iwl3945_frame *frame;
- struct list_head *element;
- if (list_empty(&priv->free_frames)) {
- frame = kzalloc(sizeof(*frame), GFP_KERNEL);
- if (!frame) {
- IWL_ERR(priv, "Could not allocate frame!\n");
- return NULL;
- }
-
- priv->frames_count++;
- return frame;
- }
-
- element = priv->free_frames.next;
- list_del(element);
- return list_entry(element, struct iwl3945_frame, list);
-}
-
-static void iwl3945_free_frame(struct iwl_priv *priv, struct iwl3945_frame *frame)
-{
- memset(frame, 0, sizeof(*frame));
- list_add(&frame->list, &priv->free_frames);
-}
-
-unsigned int iwl3945_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- int left)
-{
-
- if (!iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS) || !priv->beacon_skb)
- return 0;
-
- if (priv->beacon_skb->len > left)
- return 0;
-
- memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len);
-
- return priv->beacon_skb->len;
-}
-
-static int iwl3945_send_beacon_cmd(struct iwl_priv *priv)
-{
- struct iwl3945_frame *frame;
- unsigned int frame_size;
- int rc;
- u8 rate;
-
- frame = iwl3945_get_free_frame(priv);
-
- if (!frame) {
- IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
- "command.\n");
- return -ENOMEM;
- }
-
- rate = iwl_legacy_get_lowest_plcp(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
-
- frame_size = iwl3945_hw_get_beacon_cmd(priv, frame, rate);
-
- rc = iwl_legacy_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
- &frame->u.cmd[0]);
-
- iwl3945_free_frame(priv, frame);
-
- return rc;
-}
-
-static void iwl3945_unset_hw_params(struct iwl_priv *priv)
-{
- if (priv->_3945.shared_virt)
- dma_free_coherent(&priv->pci_dev->dev,
- sizeof(struct iwl3945_shared),
- priv->_3945.shared_virt,
- priv->_3945.shared_phys);
-}
-
-static void iwl3945_build_tx_cmd_hwcrypto(struct iwl_priv *priv,
- struct ieee80211_tx_info *info,
- struct iwl_device_cmd *cmd,
- struct sk_buff *skb_frag,
- int sta_id)
-{
- struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
- struct iwl_hw_key *keyinfo = &priv->stations[sta_id].keyinfo;
-
- tx_cmd->sec_ctl = 0;
-
- switch (keyinfo->cipher) {
- case WLAN_CIPHER_SUITE_CCMP:
- tx_cmd->sec_ctl = TX_CMD_SEC_CCM;
- memcpy(tx_cmd->key, keyinfo->key, keyinfo->keylen);
- IWL_DEBUG_TX(priv, "tx_cmd with AES hwcrypto\n");
- break;
-
- case WLAN_CIPHER_SUITE_TKIP:
- break;
-
- case WLAN_CIPHER_SUITE_WEP104:
- tx_cmd->sec_ctl |= TX_CMD_SEC_KEY128;
- /* fall through */
- case WLAN_CIPHER_SUITE_WEP40:
- tx_cmd->sec_ctl |= TX_CMD_SEC_WEP |
- (info->control.hw_key->hw_key_idx & TX_CMD_SEC_MSK) << TX_CMD_SEC_SHIFT;
-
- memcpy(&tx_cmd->key[3], keyinfo->key, keyinfo->keylen);
-
- IWL_DEBUG_TX(priv, "Configuring packet for WEP encryption "
- "with key %d\n", info->control.hw_key->hw_key_idx);
- break;
-
- default:
- IWL_ERR(priv, "Unknown encode cipher %x\n", keyinfo->cipher);
- break;
- }
-}
-
-/*
- * handle build REPLY_TX command notification.
- */
-static void iwl3945_build_tx_cmd_basic(struct iwl_priv *priv,
- struct iwl_device_cmd *cmd,
- struct ieee80211_tx_info *info,
- struct ieee80211_hdr *hdr, u8 std_id)
-{
- struct iwl3945_tx_cmd *tx_cmd = (struct iwl3945_tx_cmd *)cmd->cmd.payload;
- __le32 tx_flags = tx_cmd->tx_flags;
- __le16 fc = hdr->frame_control;
-
- tx_cmd->stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
- tx_flags |= TX_CMD_FLG_ACK_MSK;
- if (ieee80211_is_mgmt(fc))
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- if (ieee80211_is_probe_resp(fc) &&
- !(le16_to_cpu(hdr->seq_ctrl) & 0xf))
- tx_flags |= TX_CMD_FLG_TSF_MSK;
- } else {
- tx_flags &= (~TX_CMD_FLG_ACK_MSK);
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- tx_cmd->sta_id = std_id;
- if (ieee80211_has_morefrags(fc))
- tx_flags |= TX_CMD_FLG_MORE_FRAG_MSK;
-
- if (ieee80211_is_data_qos(fc)) {
- u8 *qc = ieee80211_get_qos_ctl(hdr);
- tx_cmd->tid_tspec = qc[0] & 0xf;
- tx_flags &= ~TX_CMD_FLG_SEQ_CTL_MSK;
- } else {
- tx_flags |= TX_CMD_FLG_SEQ_CTL_MSK;
- }
-
- iwl_legacy_tx_cmd_protection(priv, info, fc, &tx_flags);
-
- tx_flags &= ~(TX_CMD_FLG_ANT_SEL_MSK);
- if (ieee80211_is_mgmt(fc)) {
- if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc))
- tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(3);
- else
- tx_cmd->timeout.pm_frame_timeout = cpu_to_le16(2);
- } else {
- tx_cmd->timeout.pm_frame_timeout = 0;
- }
-
- tx_cmd->driver_txop = 0;
- tx_cmd->tx_flags = tx_flags;
- tx_cmd->next_frame_len = 0;
-}
-
-/*
- * start REPLY_TX command process
- */
-static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
- struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
- struct iwl3945_tx_cmd *tx_cmd;
- struct iwl_tx_queue *txq = NULL;
- struct iwl_queue *q = NULL;
- struct iwl_device_cmd *out_cmd;
- struct iwl_cmd_meta *out_meta;
- dma_addr_t phys_addr;
- dma_addr_t txcmd_phys;
- int txq_id = skb_get_queue_mapping(skb);
- u16 len, idx, hdr_len;
- u8 id;
- u8 unicast;
- u8 sta_id;
- u8 tid = 0;
- __le16 fc;
- u8 wait_write_ptr = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (iwl_legacy_is_rfkill(priv)) {
- IWL_DEBUG_DROP(priv, "Dropping - RF KILL\n");
- goto drop_unlock;
- }
-
- if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) == IWL_INVALID_RATE) {
- IWL_ERR(priv, "ERROR: No TX rate available.\n");
- goto drop_unlock;
- }
-
- unicast = !is_multicast_ether_addr(hdr->addr1);
- id = 0;
-
- fc = hdr->frame_control;
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (ieee80211_is_auth(fc))
- IWL_DEBUG_TX(priv, "Sending AUTH frame\n");
- else if (ieee80211_is_assoc_req(fc))
- IWL_DEBUG_TX(priv, "Sending ASSOC frame\n");
- else if (ieee80211_is_reassoc_req(fc))
- IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
-#endif
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- hdr_len = ieee80211_hdrlen(fc);
-
- /* Find index into station table for destination station */
- sta_id = iwl_legacy_sta_id_or_broadcast(
- priv, &priv->contexts[IWL_RXON_CTX_BSS],
- info->control.sta);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
- hdr->addr1);
- goto drop;
- }
-
- IWL_DEBUG_RATE(priv, "station Id %d\n", sta_id);
-
- if (ieee80211_is_data_qos(fc)) {
- u8 *qc = ieee80211_get_qos_ctl(hdr);
- tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
- if (unlikely(tid >= MAX_TID_COUNT))
- goto drop;
- }
-
- /* Descriptor for chosen Tx queue */
- txq = &priv->txq[txq_id];
- q = &txq->q;
-
- if ((iwl_legacy_queue_space(q) < q->high_mark))
- goto drop;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- idx = iwl_legacy_get_cmd_index(q, q->write_ptr, 0);
-
- /* Set up driver data for this TFD */
- memset(&(txq->txb[q->write_ptr]), 0, sizeof(struct iwl_tx_info));
- txq->txb[q->write_ptr].skb = skb;
- txq->txb[q->write_ptr].ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- /* Init first empty entry in queue's array of Tx/cmd buffers */
- out_cmd = txq->cmd[idx];
- out_meta = &txq->meta[idx];
- tx_cmd = (struct iwl3945_tx_cmd *)out_cmd->cmd.payload;
- memset(&out_cmd->hdr, 0, sizeof(out_cmd->hdr));
- memset(tx_cmd, 0, sizeof(*tx_cmd));
-
- /*
- * Set up the Tx-command (not MAC!) header.
- * Store the chosen Tx queue and TFD index within the sequence field;
- * after Tx, uCode's Tx response will return this value so driver can
- * locate the frame within the tx queue and do post-tx processing.
- */
- out_cmd->hdr.cmd = REPLY_TX;
- out_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) |
- INDEX_TO_SEQ(q->write_ptr)));
-
- /* Copy MAC header from skb into command buffer */
- memcpy(tx_cmd->hdr, hdr, hdr_len);
-
-
- if (info->control.hw_key)
- iwl3945_build_tx_cmd_hwcrypto(priv, info, out_cmd, skb, sta_id);
-
- /* TODO need this for burst mode later on */
- iwl3945_build_tx_cmd_basic(priv, out_cmd, info, hdr, sta_id);
-
- /* set is_hcca to 0; it probably will never be implemented */
- iwl3945_hw_build_tx_cmd_rate(priv, out_cmd, info, hdr, sta_id, 0);
-
- /* Total # bytes to be transmitted */
- len = (u16)skb->len;
- tx_cmd->len = cpu_to_le16(len);
-
- iwl_legacy_dbg_log_tx_data_frame(priv, len, hdr);
- iwl_legacy_update_stats(priv, true, fc, len);
- tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_A_MSK;
- tx_cmd->tx_flags &= ~TX_CMD_FLG_ANT_B_MSK;
-
- if (!ieee80211_has_morefrags(hdr->frame_control)) {
- txq->need_update = 1;
- } else {
- wait_write_ptr = 1;
- txq->need_update = 0;
- }
-
- IWL_DEBUG_TX(priv, "sequence nr = 0X%x\n",
- le16_to_cpu(out_cmd->hdr.sequence));
- IWL_DEBUG_TX(priv, "tx_flags = 0X%x\n", le32_to_cpu(tx_cmd->tx_flags));
- iwl_print_hex_dump(priv, IWL_DL_TX, tx_cmd, sizeof(*tx_cmd));
- iwl_print_hex_dump(priv, IWL_DL_TX, (u8 *)tx_cmd->hdr,
- ieee80211_hdrlen(fc));
-
- /*
- * Use the first empty entry in this queue's command buffer array
- * to contain the Tx command and MAC header concatenated together
- * (payload data will be in another buffer).
- * Size of this varies, due to varying MAC header length.
- * If end is not dword aligned, we'll have 2 extra bytes at the end
- * of the MAC header (device reads on dword boundaries).
- * We'll tell device about this padding later.
- */
- len = sizeof(struct iwl3945_tx_cmd) +
- sizeof(struct iwl_cmd_header) + hdr_len;
- len = (len + 3) & ~3;
-
- /* Physical address of this Tx command's header (not MAC header!),
- * within command buffer array. */
- txcmd_phys = pci_map_single(priv->pci_dev, &out_cmd->hdr,
- len, PCI_DMA_TODEVICE);
- /* we do not map meta data ... so we can safely access address to
- * provide to unmap command*/
- dma_unmap_addr_set(out_meta, mapping, txcmd_phys);
- dma_unmap_len_set(out_meta, len, len);
-
- /* Add buffer containing Tx command and MAC(!) header to TFD's
- * first entry */
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- txcmd_phys, len, 1, 0);
-
-
- /* Set up TFD's 2nd entry to point directly to remainder of skb,
- * if any (802.11 null frames have no payload). */
- len = skb->len - hdr_len;
- if (len) {
- phys_addr = pci_map_single(priv->pci_dev, skb->data + hdr_len,
- len, PCI_DMA_TODEVICE);
- priv->cfg->ops->lib->txq_attach_buf_to_tfd(priv, txq,
- phys_addr, len,
- 0, U32_PAD(len));
- }
-
-
- /* Tell device the write index *just past* this latest filled TFD */
- q->write_ptr = iwl_legacy_queue_inc_wrap(q->write_ptr, q->n_bd);
- iwl_legacy_txq_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- if ((iwl_legacy_queue_space(q) < q->high_mark)
- && priv->mac80211_registered) {
- if (wait_write_ptr) {
- spin_lock_irqsave(&priv->lock, flags);
- txq->need_update = 1;
- iwl_legacy_txq_update_write_ptr(priv, txq);
- spin_unlock_irqrestore(&priv->lock, flags);
- }
-
- iwl_legacy_stop_queue(priv, txq);
- }
-
- return 0;
-
-drop_unlock:
- spin_unlock_irqrestore(&priv->lock, flags);
-drop:
- return -1;
-}
-
-static int iwl3945_get_measurement(struct iwl_priv *priv,
- struct ieee80211_measurement_params *params,
- u8 type)
-{
- struct iwl_spectrum_cmd spectrum;
- struct iwl_rx_packet *pkt;
- struct iwl_host_cmd cmd = {
- .id = REPLY_SPECTRUM_MEASUREMENT_CMD,
- .data = (void *)&spectrum,
- .flags = CMD_WANT_SKB,
- };
- u32 add_time = le64_to_cpu(params->start_time);
- int rc;
- int spectrum_resp_status;
- int duration = le16_to_cpu(params->duration);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS))
- add_time = iwl_legacy_usecs_to_beacons(priv,
- le64_to_cpu(params->start_time) - priv->_3945.last_tsf,
- le16_to_cpu(ctx->timing.beacon_interval));
-
- memset(&spectrum, 0, sizeof(spectrum));
-
- spectrum.channel_count = cpu_to_le16(1);
- spectrum.flags =
- RXON_FLG_TSF2HOST_MSK | RXON_FLG_ANT_A_MSK | RXON_FLG_DIS_DIV_MSK;
- spectrum.filter_flags = MEASUREMENT_FILTER_FLAG;
- cmd.len = sizeof(spectrum);
- spectrum.len = cpu_to_le16(cmd.len - sizeof(spectrum.len));
-
- if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS))
- spectrum.start_time =
- iwl_legacy_add_beacon_time(priv,
- priv->_3945.last_beacon_time, add_time,
- le16_to_cpu(ctx->timing.beacon_interval));
- else
- spectrum.start_time = 0;
-
- spectrum.channels[0].duration = cpu_to_le32(duration * TIME_UNIT);
- spectrum.channels[0].channel = params->channel;
- spectrum.channels[0].type = type;
- if (ctx->active.flags & RXON_FLG_BAND_24G_MSK)
- spectrum.flags |= RXON_FLG_BAND_24G_MSK |
- RXON_FLG_AUTO_DETECT_MSK | RXON_FLG_TGG_PROTECT_MSK;
-
- rc = iwl_legacy_send_cmd_sync(priv, &cmd);
- if (rc)
- return rc;
-
- pkt = (struct iwl_rx_packet *)cmd.reply_page;
- if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
- IWL_ERR(priv, "Bad return from REPLY_RX_ON_ASSOC command\n");
- rc = -EIO;
- }
-
- spectrum_resp_status = le16_to_cpu(pkt->u.spectrum.status);
- switch (spectrum_resp_status) {
- case 0: /* Command will be handled */
- if (pkt->u.spectrum.id != 0xff) {
- IWL_DEBUG_INFO(priv, "Replaced existing measurement: %d\n",
- pkt->u.spectrum.id);
- priv->measurement_status &= ~MEASUREMENT_READY;
- }
- priv->measurement_status |= MEASUREMENT_ACTIVE;
- rc = 0;
- break;
-
- case 1: /* Command will not be handled */
- rc = -EAGAIN;
- break;
- }
-
- iwl_legacy_free_pages(priv, cmd.reply_page);
-
- return rc;
-}
-
-static void iwl3945_rx_reply_alive(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_alive_resp *palive;
- struct delayed_work *pwork;
-
- palive = &pkt->u.alive_frame;
-
- IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
- "0x%01X 0x%01X\n",
- palive->is_valid, palive->ver_type,
- palive->ver_subtype);
-
- if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
- IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
- memcpy(&priv->card_alive_init, &pkt->u.alive_frame,
- sizeof(struct iwl_alive_resp));
- pwork = &priv->init_alive_start;
- } else {
- IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
- memcpy(&priv->card_alive, &pkt->u.alive_frame,
- sizeof(struct iwl_alive_resp));
- pwork = &priv->alive_start;
- iwl3945_disable_events(priv);
- }
-
- /* We delay the ALIVE response by 5ms to
- * give the HW RF Kill time to activate... */
- if (palive->is_valid == UCODE_VALID_OK)
- queue_delayed_work(priv->workqueue, pwork,
- msecs_to_jiffies(5));
- else
- IWL_WARN(priv, "uCode did not respond OK.\n");
-}
-
-static void iwl3945_rx_reply_add_sta(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
-#endif
-
- IWL_DEBUG_RX(priv, "Received REPLY_ADD_STA: 0x%02X\n", pkt->u.status);
-}
-
-static void iwl3945_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl3945_beacon_notif *beacon = &(pkt->u.beacon_status);
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- u8 rate = beacon->beacon_notify_hdr.rate;
-
- IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
- "tsf %d %d rate %d\n",
- le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-#endif
-
- priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
-
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void iwl3945_rx_card_state_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- unsigned long status = priv->status;
-
- IWL_WARN(priv, "Card state received: HW:%s SW:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On");
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- if (flags & HW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
-
- iwl_legacy_scan_cancel(priv);
-
- if ((test_bit(STATUS_RF_KILL_HW, &status) !=
- test_bit(STATUS_RF_KILL_HW, &priv->status)))
- wiphy_rfkill_set_hw_state(priv->hw->wiphy,
- test_bit(STATUS_RF_KILL_HW, &priv->status));
- else
- wake_up(&priv->wait_command_queue);
-}
-
-/**
- * iwl3945_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- *
- * This function chains into the hardware specific files for them to setup
- * any hardware specific handlers as well.
- */
-static void iwl3945_setup_rx_handlers(struct iwl_priv *priv)
-{
- priv->rx_handlers[REPLY_ALIVE] = iwl3945_rx_reply_alive;
- priv->rx_handlers[REPLY_ADD_STA] = iwl3945_rx_reply_add_sta;
- priv->rx_handlers[REPLY_ERROR] = iwl_legacy_rx_reply_error;
- priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_legacy_rx_csa;
- priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
- iwl_legacy_rx_spectrum_measure_notif;
- priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_legacy_rx_pm_sleep_notif;
- priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
- iwl_legacy_rx_pm_debug_statistics_notif;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl3945_rx_beacon_notif;
-
- /*
- * The same handler is used for both the REPLY to a discrete
- * statistics request from the host as well as for the periodic
- * statistics notifications (after received beacons) from the uCode.
- */
- priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl3945_reply_statistics;
- priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl3945_hw_rx_statistics;
-
- iwl_legacy_setup_rx_scan_handlers(priv);
- priv->rx_handlers[CARD_STATE_NOTIFICATION] = iwl3945_rx_card_state_notif;
-
- /* Set up hardware specific Rx handlers */
- iwl3945_hw_rx_handler_setup(priv);
-}
-
-/************************** RX-FUNCTIONS ****************************/
-/*
- * Rx theory of operation
- *
- * The host allocates 32 DMA target addresses and passes the host address
- * to the firmware at register IWL_RFDS_TABLE_LOWER + N * RFD_SIZE where N is
- * 0 to 31
- *
- * Rx Queue Indexes
- * The host/firmware share two index registers for managing the Rx buffers.
- *
- * The READ index maps to the first position that the firmware may be writing
- * to -- the driver can read up to (but not including) this position and get
- * good data.
- * The READ index is managed by the firmware once the card is enabled.
- *
- * The WRITE index maps to the last position the driver has read from -- the
- * position preceding WRITE is the last slot the firmware can place a packet.
- *
- * The queue is empty (no good data) if WRITE = READ - 1, and is full if
- * WRITE = READ.
- *
- * During initialization, the host sets up the READ queue position to the first
- * INDEX position, and WRITE to the last (READ - 1 wrapped)
- *
- * When the firmware places a packet in a buffer, it will advance the READ index
- * and fire the RX interrupt. The driver can then query the READ index and
- * process as many packets as possible, moving the WRITE index forward as it
- * resets the Rx queue buffers with new memory.
- *
- * The management in the driver is as follows:
- * + A list of pre-allocated SKBs is stored in iwl->rxq->rx_free. When
- * iwl->rxq->free_count drops to or below RX_LOW_WATERMARK, work is scheduled
- * to replenish the iwl->rxq->rx_free.
- * + In iwl3945_rx_replenish (scheduled) if 'processed' != 'read' then the
- * iwl->rxq is replenished and the READ INDEX is updated (updating the
- * 'processed' and 'read' driver indexes as well)
- * + A received packet is processed and handed to the kernel network stack,
- * detached from the iwl->rxq. The driver 'processed' index is updated.
- * + The Host/Firmware iwl->rxq is replenished at tasklet time from the rx_free
- * list. If there are no allocated buffers in iwl->rxq->rx_free, the READ
- * INDEX is not incremented and iwl->status(RX_STALLED) is set. If there
- * were enough free buffers and RX_STALLED is set it is cleared.
- *
- *
- * Driver sequence:
- *
- * iwl3945_rx_replenish() Replenishes rx_free list from rx_used, and calls
- * iwl3945_rx_queue_restock
- * iwl3945_rx_queue_restock() Moves available buffers from rx_free into Rx
- * queue, updates firmware pointers, and updates
- * the WRITE index. If insufficient rx_free buffers
- * are available, schedules iwl3945_rx_replenish
- *
- * -- enable interrupts --
- * ISR - iwl3945_rx() Detach iwl_rx_mem_buffers from pool up to the
- * READ INDEX, detaching the SKB from the pool.
- * Moves the packet buffer from queue to rx_used.
- * Calls iwl3945_rx_queue_restock to refill any empty
- * slots.
- * ...
- *
- */
-
-/**
- * iwl3945_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
- */
-static inline __le32 iwl3945_dma_addr2rbd_ptr(struct iwl_priv *priv,
- dma_addr_t dma_addr)
-{
- return cpu_to_le32((u32)dma_addr);
-}
-
-/**
- * iwl3945_rx_queue_restock - refill RX queue from pre-allocated pool
- *
- * If there are slots in the RX queue that need to be restocked,
- * and we have free pre-allocated buffers, fill the ranks as much
- * as we can, pulling from rx_free.
- *
- * This moves the 'write' index forward to catch up with 'processed', and
- * also updates the memory address in the firmware to reference the new
- * target buffer.
- */
-static void iwl3945_rx_queue_restock(struct iwl_priv *priv)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- unsigned long flags;
- int write;
-
- spin_lock_irqsave(&rxq->lock, flags);
- write = rxq->write & ~0x7;
- while ((iwl_legacy_rx_queue_space(rxq) > 0) && (rxq->free_count)) {
- /* Get next free Rx buffer, remove from free list */
- element = rxq->rx_free.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- list_del(element);
-
- /* Point to Rx buffer via next RBD in circular buffer */
- rxq->bd[rxq->write] = iwl3945_dma_addr2rbd_ptr(priv, rxb->page_dma);
- rxq->queue[rxq->write] = rxb;
- rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
- rxq->free_count--;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
- /* If the pre-allocated buffer pool is dropping low, schedule to
- * refill it */
- if (rxq->free_count <= RX_LOW_WATERMARK)
- queue_work(priv->workqueue, &priv->rx_replenish);
-
-
- /* If we've added more space for the firmware to place data, tell it.
- * Increment device's write pointer in multiples of 8. */
- if ((rxq->write_actual != (rxq->write & ~0x7))
- || (abs(rxq->write - rxq->read) > 7)) {
- spin_lock_irqsave(&rxq->lock, flags);
- rxq->need_update = 1;
- spin_unlock_irqrestore(&rxq->lock, flags);
- iwl_legacy_rx_queue_update_write_ptr(priv, rxq);
- }
-}
-
-/**
- * iwl3945_rx_replenish - Move all used packet from rx_used to rx_free
- *
- * When moving to rx_free an SKB is allocated for the slot.
- *
- * Also restock the Rx queue via iwl3945_rx_queue_restock.
- * This is called as a scheduled work item (except for during initialization)
- */
-static void iwl3945_rx_allocate(struct iwl_priv *priv, gfp_t priority)
-{
- struct iwl_rx_queue *rxq = &priv->rxq;
- struct list_head *element;
- struct iwl_rx_mem_buffer *rxb;
- struct page *page;
- unsigned long flags;
- gfp_t gfp_mask = priority;
-
- while (1) {
- spin_lock_irqsave(&rxq->lock, flags);
-
- if (list_empty(&rxq->rx_used)) {
- spin_unlock_irqrestore(&rxq->lock, flags);
- return;
- }
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- if (rxq->free_count > RX_LOW_WATERMARK)
- gfp_mask |= __GFP_NOWARN;
-
- if (priv->hw_params.rx_page_order > 0)
- gfp_mask |= __GFP_COMP;
-
- /* Alloc a new receive buffer */
- page = alloc_pages(gfp_mask, priv->hw_params.rx_page_order);
- if (!page) {
- if (net_ratelimit())
- IWL_DEBUG_INFO(priv, "Failed to allocate SKB buffer.\n");
- if ((rxq->free_count <= RX_LOW_WATERMARK) &&
- net_ratelimit())
- IWL_CRIT(priv, "Failed to allocate SKB buffer with %s. Only %u free buffers remaining.\n",
- priority == GFP_ATOMIC ? "GFP_ATOMIC" : "GFP_KERNEL",
- rxq->free_count);
- /* We don't reschedule replenish work here -- we will
- * call the restock method and if it still needs
- * more buffers it will schedule replenish */
- break;
- }
-
- spin_lock_irqsave(&rxq->lock, flags);
- if (list_empty(&rxq->rx_used)) {
- spin_unlock_irqrestore(&rxq->lock, flags);
- __free_pages(page, priv->hw_params.rx_page_order);
- return;
- }
- element = rxq->rx_used.next;
- rxb = list_entry(element, struct iwl_rx_mem_buffer, list);
- list_del(element);
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- rxb->page = page;
- /* Get physical address of RB/SKB */
- rxb->page_dma = pci_map_page(priv->pci_dev, page, 0,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
-
- spin_lock_irqsave(&rxq->lock, flags);
-
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- priv->alloc_rxb_page++;
-
- spin_unlock_irqrestore(&rxq->lock, flags);
- }
-}
-
-void iwl3945_rx_queue_reset(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- unsigned long flags;
- int i;
- spin_lock_irqsave(&rxq->lock, flags);
- INIT_LIST_HEAD(&rxq->rx_free);
- INIT_LIST_HEAD(&rxq->rx_used);
- /* Fill the rx_used queue with _all_ of the Rx buffers */
- for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) {
- /* In the reset function, these buffers may have been allocated
- * to an SKB, so we need to unmap and free potential storage */
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_legacy_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- list_add_tail(&rxq->pool[i].list, &rxq->rx_used);
- }
-
- /* Set us so that we have processed and used all buffers, but have
- * not restocked the Rx queue with fresh buffers */
- rxq->read = rxq->write = 0;
- rxq->write_actual = 0;
- rxq->free_count = 0;
- spin_unlock_irqrestore(&rxq->lock, flags);
-}
-
-void iwl3945_rx_replenish(void *data)
-{
- struct iwl_priv *priv = data;
- unsigned long flags;
-
- iwl3945_rx_allocate(priv, GFP_KERNEL);
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl3945_rx_queue_restock(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void iwl3945_rx_replenish_now(struct iwl_priv *priv)
-{
- iwl3945_rx_allocate(priv, GFP_ATOMIC);
-
- iwl3945_rx_queue_restock(priv);
-}
-
-
-/* Assumes that the skb field of the buffers in 'pool' is kept accurate.
- * If an SKB has been detached, the POOL needs to have its SKB set to NULL
- * This free routine walks the list of POOL entries and if SKB is set to
- * non NULL it is unmapped and freed
- */
-static void iwl3945_rx_queue_free(struct iwl_priv *priv, struct iwl_rx_queue *rxq)
-{
- int i;
- for (i = 0; i < RX_QUEUE_SIZE + RX_FREE_BUFFERS; i++) {
- if (rxq->pool[i].page != NULL) {
- pci_unmap_page(priv->pci_dev, rxq->pool[i].page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- __iwl_legacy_free_pages(priv, rxq->pool[i].page);
- rxq->pool[i].page = NULL;
- }
- }
-
- dma_free_coherent(&priv->pci_dev->dev, 4 * RX_QUEUE_SIZE, rxq->bd,
- rxq->bd_dma);
- dma_free_coherent(&priv->pci_dev->dev, sizeof(struct iwl_rb_status),
- rxq->rb_stts, rxq->rb_stts_dma);
- rxq->bd = NULL;
- rxq->rb_stts = NULL;
-}
-
-
-/* Convert linear signal-to-noise ratio into dB */
-static u8 ratio2dB[100] = {
-/* 0 1 2 3 4 5 6 7 8 9 */
- 0, 0, 6, 10, 12, 14, 16, 17, 18, 19, /* 00 - 09 */
- 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, /* 10 - 19 */
- 26, 26, 26, 27, 27, 28, 28, 28, 29, 29, /* 20 - 29 */
- 29, 30, 30, 30, 31, 31, 31, 31, 32, 32, /* 30 - 39 */
- 32, 32, 32, 33, 33, 33, 33, 33, 34, 34, /* 40 - 49 */
- 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, /* 50 - 59 */
- 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, /* 60 - 69 */
- 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, /* 70 - 79 */
- 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, /* 80 - 89 */
- 39, 39, 39, 39, 39, 40, 40, 40, 40, 40 /* 90 - 99 */
-};
-
-/* Calculates a relative dB value from a ratio of linear
- * (i.e. not dB) signal levels.
- * Conversion assumes that levels are voltages (20*log), not powers (10*log). */
-int iwl3945_calc_db_from_ratio(int sig_ratio)
-{
- /* 1000:1 or higher just report as 60 dB */
- if (sig_ratio >= 1000)
- return 60;
-
- /* 100:1 or higher, divide by 10 and use table,
- * add 20 dB to make up for divide by 10 */
- if (sig_ratio >= 100)
- return 20 + (int)ratio2dB[sig_ratio/10];
-
- /* We shouldn't see this */
- if (sig_ratio < 1)
- return 0;
-
- /* Use table for ratios 1:1 - 99:1 */
- return (int)ratio2dB[sig_ratio];
-}
-
-/**
- * iwl3945_rx_handle - Main entry function for receiving responses from uCode
- *
- * Uses the priv->rx_handlers callback function array to invoke
- * the appropriate handlers, including command responses,
- * frame-received notifications, and other notifications.
- */
-static void iwl3945_rx_handle(struct iwl_priv *priv)
-{
- struct iwl_rx_mem_buffer *rxb;
- struct iwl_rx_packet *pkt;
- struct iwl_rx_queue *rxq = &priv->rxq;
- u32 r, i;
- int reclaim;
- unsigned long flags;
- u8 fill_rx = 0;
- u32 count = 8;
- int total_empty = 0;
-
- /* uCode's read index (stored in shared DRAM) indicates the last Rx
- * buffer that the driver may process (last buffer filled by ucode). */
- r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
- i = rxq->read;
-
- /* calculate total frames need to be restock after handling RX */
- total_empty = r - rxq->write_actual;
- if (total_empty < 0)
- total_empty += RX_QUEUE_SIZE;
-
- if (total_empty > (RX_QUEUE_SIZE / 2))
- fill_rx = 1;
- /* Rx interrupt, but nothing sent from uCode */
- if (i == r)
- IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
-
- while (i != r) {
- int len;
-
- rxb = rxq->queue[i];
-
- /* If an RXB doesn't have a Rx queue slot associated with it,
- * then a bug has been introduced in the queue refilling
- * routines -- catch it here */
- BUG_ON(rxb == NULL);
-
- rxq->queue[i] = NULL;
-
- pci_unmap_page(priv->pci_dev, rxb->page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- pkt = rxb_addr(rxb);
-
- len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- len += sizeof(u32); /* account for status word */
- trace_iwlwifi_legacy_dev_rx(priv, pkt, len);
-
- /* Reclaim a command buffer only if this packet is a response
- * to a (driver-originated) command.
- * If the packet (e.g. Rx frame) originated from uCode,
- * there is no command buffer to reclaim.
- * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
- * but apparently a few don't get set; catch them here. */
- reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
- (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
- (pkt->hdr.cmd != REPLY_TX);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl3945_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r, i,
- iwl_legacy_get_cmd_string(pkt->hdr.cmd), pkt->hdr.cmd);
- priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
- priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
- } else {
- /* No handling needed */
- IWL_DEBUG_RX(priv,
- "r %d i %d No handler needed for %s, 0x%02x\n",
- r, i, iwl_legacy_get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- }
-
- /*
- * XXX: After here, we should always check rxb->page
- * against NULL before touching it or its virtual
- * memory (pkt). Because some rx_handler might have
- * already taken or freed the pages.
- */
-
- if (reclaim) {
- /* Invoke any callbacks, transfer the buffer to caller,
- * and fire off the (possibly) blocking iwl_legacy_send_cmd()
- * as we reclaim the driver command queue */
- if (rxb->page)
- iwl_legacy_tx_cmd_complete(priv, rxb);
- else
- IWL_WARN(priv, "Claim null rxb?\n");
- }
-
- /* Reuse the page if possible. For notification packets and
- * SKBs that fail to Rx correctly, add them back into the
- * rx_free list for reuse later. */
- spin_lock_irqsave(&rxq->lock, flags);
- if (rxb->page != NULL) {
- rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page,
- 0, PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- } else
- list_add_tail(&rxb->list, &rxq->rx_used);
-
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- i = (i + 1) & RX_QUEUE_MASK;
- /* If there are a lot of unused frames,
- * restock the Rx queue so ucode won't assert. */
- if (fill_rx) {
- count++;
- if (count >= 8) {
- rxq->read = i;
- iwl3945_rx_replenish_now(priv);
- count = 0;
- }
- }
- }
-
- /* Backtrack one entry */
- rxq->read = i;
- if (fill_rx)
- iwl3945_rx_replenish_now(priv);
- else
- iwl3945_rx_queue_restock(priv);
-}
-
-/* call this function to flush any scheduled tasklet */
-static inline void iwl3945_synchronize_irq(struct iwl_priv *priv)
-{
- /* wait to make sure we flush pending tasklet*/
- synchronize_irq(priv->pci_dev->irq);
- tasklet_kill(&priv->irq_tasklet);
-}
-
-static const char *iwl3945_desc_lookup(int i)
-{
- switch (i) {
- case 1:
- return "FAIL";
- case 2:
- return "BAD_PARAM";
- case 3:
- return "BAD_CHECKSUM";
- case 4:
- return "NMI_INTERRUPT";
- case 5:
- return "SYSASSERT";
- case 6:
- return "FATAL_ERROR";
- }
-
- return "UNKNOWN";
-}
-
-#define ERROR_START_OFFSET (1 * sizeof(u32))
-#define ERROR_ELEM_SIZE (7 * sizeof(u32))
-
-void iwl3945_dump_nic_error_log(struct iwl_priv *priv)
-{
- u32 i;
- u32 desc, time, count, base, data1;
- u32 blink1, blink2, ilink1, ilink2;
-
- base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
-
- if (!iwl3945_hw_valid_rtc_data_addr(base)) {
- IWL_ERR(priv, "Not valid error log pointer 0x%08X\n", base);
- return;
- }
-
-
- count = iwl_legacy_read_targ_mem(priv, base);
-
- if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
- IWL_ERR(priv, "Start IWL Error Log Dump:\n");
- IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
- priv->status, count);
- }
-
- IWL_ERR(priv, "Desc Time asrtPC blink2 "
- "ilink1 nmiPC Line\n");
- for (i = ERROR_START_OFFSET;
- i < (count * ERROR_ELEM_SIZE) + ERROR_START_OFFSET;
- i += ERROR_ELEM_SIZE) {
- desc = iwl_legacy_read_targ_mem(priv, base + i);
- time =
- iwl_legacy_read_targ_mem(priv, base + i + 1 * sizeof(u32));
- blink1 =
- iwl_legacy_read_targ_mem(priv, base + i + 2 * sizeof(u32));
- blink2 =
- iwl_legacy_read_targ_mem(priv, base + i + 3 * sizeof(u32));
- ilink1 =
- iwl_legacy_read_targ_mem(priv, base + i + 4 * sizeof(u32));
- ilink2 =
- iwl_legacy_read_targ_mem(priv, base + i + 5 * sizeof(u32));
- data1 =
- iwl_legacy_read_targ_mem(priv, base + i + 6 * sizeof(u32));
-
- IWL_ERR(priv,
- "%-13s (0x%X) %010u 0x%05X 0x%05X 0x%05X 0x%05X %u\n\n",
- iwl3945_desc_lookup(desc), desc, time, blink1, blink2,
- ilink1, ilink2, data1);
- trace_iwlwifi_legacy_dev_ucode_error(priv, desc, time, data1, 0,
- 0, blink1, blink2, ilink1, ilink2);
- }
-}
-
-static void iwl3945_irq_tasklet(struct iwl_priv *priv)
-{
- u32 inta, handled = 0;
- u32 inta_fh;
- unsigned long flags;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- u32 inta_mask;
-#endif
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Ack/clear/reset pending uCode interrupts.
- * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
- * and will clear only when CSR_FH_INT_STATUS gets cleared. */
- inta = iwl_read32(priv, CSR_INT);
- iwl_write32(priv, CSR_INT, inta);
-
- /* Ack/clear/reset pending flow-handler (DMA) interrupts.
- * Any new interrupts that happen after this, either while we're
- * in this tasklet, or later, will show up in next ISR/tasklet. */
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & IWL_DL_ISR) {
- /* just for debug */
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
- }
-#endif
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
- * atomic, make sure that inta covers all the interrupts that
- * we've discovered, even if FH interrupt came in just after
- * reading CSR_INT. */
- if (inta_fh & CSR39_FH_INT_RX_MASK)
- inta |= CSR_INT_BIT_FH_RX;
- if (inta_fh & CSR39_FH_INT_TX_MASK)
- inta |= CSR_INT_BIT_FH_TX;
-
- /* Now service all interrupt bits discovered above. */
- if (inta & CSR_INT_BIT_HW_ERR) {
- IWL_ERR(priv, "Hardware error detected. Restarting.\n");
-
- /* Tell the device to stop sending interrupts */
- iwl_legacy_disable_interrupts(priv);
-
- priv->isr_stats.hw++;
- iwl_legacy_irq_handle_error(priv);
-
- handled |= CSR_INT_BIT_HW_ERR;
-
- return;
- }
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) {
- /* NIC fires this, but we don't use it, redundant with WAKEUP */
- if (inta & CSR_INT_BIT_SCD) {
- IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
- "the frame/frames.\n");
- priv->isr_stats.sch++;
- }
-
- /* Alive notification via Rx interrupt will do the real work */
- if (inta & CSR_INT_BIT_ALIVE) {
- IWL_DEBUG_ISR(priv, "Alive interrupt\n");
- priv->isr_stats.alive++;
- }
- }
-#endif
- /* Safely ignore these bits for debug checks below */
- inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
-
- /* Error detected by uCode */
- if (inta & CSR_INT_BIT_SW_ERR) {
- IWL_ERR(priv, "Microcode SW error detected. "
- "Restarting 0x%X.\n", inta);
- priv->isr_stats.sw++;
- iwl_legacy_irq_handle_error(priv);
- handled |= CSR_INT_BIT_SW_ERR;
- }
-
- /* uCode wakes up after power-down sleep */
- if (inta & CSR_INT_BIT_WAKEUP) {
- IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
- iwl_legacy_rx_queue_update_write_ptr(priv, &priv->rxq);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[0]);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[1]);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[2]);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[3]);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[4]);
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[5]);
-
- priv->isr_stats.wakeup++;
- handled |= CSR_INT_BIT_WAKEUP;
- }
-
- /* All uCode command responses, including Tx command responses,
- * Rx "responses" (frame-received notification), and other
- * notifications from uCode come through here*/
- if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
- iwl3945_rx_handle(priv);
- priv->isr_stats.rx++;
- handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
- }
-
- if (inta & CSR_INT_BIT_FH_TX) {
- IWL_DEBUG_ISR(priv, "Tx interrupt\n");
- priv->isr_stats.tx++;
-
- iwl_write32(priv, CSR_FH_INT_STATUS, (1 << 6));
- iwl_legacy_write_direct32(priv, FH39_TCSR_CREDIT
- (FH39_SRVC_CHNL), 0x0);
- handled |= CSR_INT_BIT_FH_TX;
- }
-
- if (inta & ~handled) {
- IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
- priv->isr_stats.unhandled++;
- }
-
- if (inta & ~priv->inta_mask) {
- IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
- inta & ~priv->inta_mask);
- IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
- }
-
- /* Re-enable all interrupts */
- /* only Re-enable if disabled by irq */
- if (test_bit(STATUS_INT_ENABLED, &priv->status))
- iwl_legacy_enable_interrupts(priv);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) {
- inta = iwl_read32(priv, CSR_INT);
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR(priv, "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
- "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
- }
-#endif
-}
-
-static int iwl3945_get_channels_for_scan(struct iwl_priv *priv,
- enum ieee80211_band band,
- u8 is_active, u8 n_probes,
- struct iwl3945_scan_channel *scan_ch,
- struct ieee80211_vif *vif)
-{
- struct ieee80211_channel *chan;
- const struct ieee80211_supported_band *sband;
- const struct iwl_channel_info *ch_info;
- u16 passive_dwell = 0;
- u16 active_dwell = 0;
- int added, i;
-
- sband = iwl_get_hw_mode(priv, band);
- if (!sband)
- return 0;
-
- active_dwell = iwl_legacy_get_active_dwell_time(priv, band, n_probes);
- passive_dwell = iwl_legacy_get_passive_dwell_time(priv, band, vif);
-
- if (passive_dwell <= active_dwell)
- passive_dwell = active_dwell + 1;
-
- for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) {
- chan = priv->scan_request->channels[i];
-
- if (chan->band != band)
- continue;
-
- scan_ch->channel = chan->hw_value;
-
- ch_info = iwl_legacy_get_channel_info(priv, band,
- scan_ch->channel);
- if (!iwl_legacy_is_channel_valid(ch_info)) {
- IWL_DEBUG_SCAN(priv,
- "Channel %d is INVALID for this band.\n",
- scan_ch->channel);
- continue;
- }
-
- scan_ch->active_dwell = cpu_to_le16(active_dwell);
- scan_ch->passive_dwell = cpu_to_le16(passive_dwell);
- /* If passive , set up for auto-switch
- * and use long active_dwell time.
- */
- if (!is_active || iwl_legacy_is_channel_passive(ch_info) ||
- (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) {
- scan_ch->type = 0; /* passive */
- if (IWL_UCODE_API(priv->ucode_ver) == 1)
- scan_ch->active_dwell = cpu_to_le16(passive_dwell - 1);
- } else {
- scan_ch->type = 1; /* active */
- }
-
- /* Set direct probe bits. These may be used both for active
- * scan channels (probes gets sent right away),
- * or for passive channels (probes get se sent only after
- * hearing clear Rx packet).*/
- if (IWL_UCODE_API(priv->ucode_ver) >= 2) {
- if (n_probes)
- scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
- } else {
- /* uCode v1 does not allow setting direct probe bits on
- * passive channel. */
- if ((scan_ch->type & 1) && n_probes)
- scan_ch->type |= IWL39_SCAN_PROBE_MASK(n_probes);
- }
-
- /* Set txpower levels to defaults */
- scan_ch->tpc.dsp_atten = 110;
- /* scan_pwr_info->tpc.dsp_atten; */
-
- /*scan_pwr_info->tpc.tx_gain; */
- if (band == IEEE80211_BAND_5GHZ)
- scan_ch->tpc.tx_gain = ((1 << 5) | (3 << 3)) | 3;
- else {
- scan_ch->tpc.tx_gain = ((1 << 5) | (5 << 3));
- /* NOTE: if we were doing 6Mb OFDM for scans we'd use
- * power level:
- * scan_ch->tpc.tx_gain = ((1 << 5) | (2 << 3)) | 3;
- */
- }
-
- IWL_DEBUG_SCAN(priv, "Scanning %d [%s %d]\n",
- scan_ch->channel,
- (scan_ch->type & 1) ? "ACTIVE" : "PASSIVE",
- (scan_ch->type & 1) ?
- active_dwell : passive_dwell);
-
- scan_ch++;
- added++;
- }
-
- IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added);
- return added;
-}
-
-static void iwl3945_init_hw_rates(struct iwl_priv *priv,
- struct ieee80211_rate *rates)
-{
- int i;
-
- for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
- rates[i].bitrate = iwl3945_rates[i].ieee * 5;
- rates[i].hw_value = i; /* Rate scaling will work on indexes */
- rates[i].hw_value_short = i;
- rates[i].flags = 0;
- if ((i > IWL39_LAST_OFDM_RATE) || (i < IWL_FIRST_OFDM_RATE)) {
- /*
- * If CCK != 1M then set short preamble rate flag.
- */
- rates[i].flags |= (iwl3945_rates[i].plcp == 10) ?
- 0 : IEEE80211_RATE_SHORT_PREAMBLE;
- }
- }
-}
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void iwl3945_dealloc_ucode_pci(struct iwl_priv *priv)
-{
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_code);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
-}
-
-/**
- * iwl3945_verify_inst_full - verify runtime uCode image in card vs. host,
- * looking at all data.
- */
-static int iwl3945_verify_inst_full(struct iwl_priv *priv, __le32 *image, u32 len)
-{
- u32 val;
- u32 save_len = len;
- int rc = 0;
- u32 errcnt;
-
- IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
-
- iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
- IWL39_RTC_INST_LOWER_BOUND);
-
- errcnt = 0;
- for (; len > 0; len -= sizeof(u32), image++) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
- IWL_ERR(priv, "uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- save_len - len, val, le32_to_cpu(*image));
- rc = -EIO;
- errcnt++;
- if (errcnt >= 20)
- break;
- }
- }
-
-
- if (!errcnt)
- IWL_DEBUG_INFO(priv,
- "ucode image in INSTRUCTION memory is good\n");
-
- return rc;
-}
-
-
-/**
- * iwl3945_verify_inst_sparse - verify runtime uCode image in card vs. host,
- * using sample data 100 bytes apart. If these sample points are good,
- * it's a pretty good bet that everything between them is good, too.
- */
-static int iwl3945_verify_inst_sparse(struct iwl_priv *priv, __le32 *image, u32 len)
-{
- u32 val;
- int rc = 0;
- u32 errcnt = 0;
- u32 i;
-
- IWL_DEBUG_INFO(priv, "ucode inst image size is %u\n", len);
-
- for (i = 0; i < len; i += 100, image += 100/sizeof(u32)) {
- /* read data comes through single port, auto-incr addr */
- /* NOTE: Use the debugless read so we don't flood kernel log
- * if IWL_DL_IO is set */
- iwl_legacy_write_direct32(priv, HBUS_TARG_MEM_RADDR,
- i + IWL39_RTC_INST_LOWER_BOUND);
- val = _iwl_legacy_read_direct32(priv, HBUS_TARG_MEM_RDAT);
- if (val != le32_to_cpu(*image)) {
-#if 0 /* Enable this if you want to see details */
- IWL_ERR(priv, "uCode INST section is invalid at "
- "offset 0x%x, is 0x%x, s/b 0x%x\n",
- i, val, *image);
-#endif
- rc = -EIO;
- errcnt++;
- if (errcnt >= 3)
- break;
- }
- }
-
- return rc;
-}
-
-
-/**
- * iwl3945_verify_ucode - determine which instruction image is in SRAM,
- * and verify its contents
- */
-static int iwl3945_verify_ucode(struct iwl_priv *priv)
-{
- __le32 *image;
- u32 len;
- int rc = 0;
-
- /* Try bootstrap */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl3945_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO(priv, "Bootstrap uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try initialize */
- image = (__le32 *)priv->ucode_init.v_addr;
- len = priv->ucode_init.len;
- rc = iwl3945_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO(priv, "Initialize uCode is good in inst SRAM\n");
- return 0;
- }
-
- /* Try runtime/protocol */
- image = (__le32 *)priv->ucode_code.v_addr;
- len = priv->ucode_code.len;
- rc = iwl3945_verify_inst_sparse(priv, image, len);
- if (rc == 0) {
- IWL_DEBUG_INFO(priv, "Runtime uCode is good in inst SRAM\n");
- return 0;
- }
-
- IWL_ERR(priv, "NO VALID UCODE IMAGE IN INSTRUCTION SRAM!!\n");
-
- /* Since nothing seems to match, show first several data entries in
- * instruction SRAM, so maybe visual inspection will give a clue.
- * Selection of bootstrap image (vs. other images) is arbitrary. */
- image = (__le32 *)priv->ucode_boot.v_addr;
- len = priv->ucode_boot.len;
- rc = iwl3945_verify_inst_full(priv, image, len);
-
- return rc;
-}
-
-static void iwl3945_nic_start(struct iwl_priv *priv)
-{
- /* Remove all resets to allow NIC to operate */
- iwl_write32(priv, CSR_RESET, 0);
-}
-
-#define IWL3945_UCODE_GET(item) \
-static u32 iwl3945_ucode_get_##item(const struct iwl_ucode_header *ucode)\
-{ \
- return le32_to_cpu(ucode->v1.item); \
-}
-
-static u32 iwl3945_ucode_get_header_size(u32 api_ver)
-{
- return 24;
-}
-
-static u8 *iwl3945_ucode_get_data(const struct iwl_ucode_header *ucode)
-{
- return (u8 *) ucode->v1.data;
-}
-
-IWL3945_UCODE_GET(inst_size);
-IWL3945_UCODE_GET(data_size);
-IWL3945_UCODE_GET(init_size);
-IWL3945_UCODE_GET(init_data_size);
-IWL3945_UCODE_GET(boot_size);
-
-/**
- * iwl3945_read_ucode - Read uCode images from disk file.
- *
- * Copy into buffers for card to fetch via bus-mastering
- */
-static int iwl3945_read_ucode(struct iwl_priv *priv)
-{
- const struct iwl_ucode_header *ucode;
- int ret = -EINVAL, index;
- const struct firmware *ucode_raw;
- /* firmware file name contains uCode/driver compatibility version */
- const char *name_pre = priv->cfg->fw_name_pre;
- const unsigned int api_max = priv->cfg->ucode_api_max;
- const unsigned int api_min = priv->cfg->ucode_api_min;
- char buf[25];
- u8 *src;
- size_t len;
- u32 api_ver, inst_size, data_size, init_size, init_data_size, boot_size;
-
- /* Ask kernel firmware_class module to get the boot firmware off disk.
- * request_firmware() is synchronous, file is in memory on return. */
- for (index = api_max; index >= api_min; index--) {
- sprintf(buf, "%s%u%s", name_pre, index, ".ucode");
- ret = request_firmware(&ucode_raw, buf, &priv->pci_dev->dev);
- if (ret < 0) {
- IWL_ERR(priv, "%s firmware file req failed: %d\n",
- buf, ret);
- if (ret == -ENOENT)
- continue;
- else
- goto error;
- } else {
- if (index < api_max)
- IWL_ERR(priv, "Loaded firmware %s, "
- "which is deprecated. "
- " Please use API v%u instead.\n",
- buf, api_max);
- IWL_DEBUG_INFO(priv, "Got firmware '%s' file "
- "(%zd bytes) from disk\n",
- buf, ucode_raw->size);
- break;
- }
- }
-
- if (ret < 0)
- goto error;
-
- /* Make sure that we got at least our header! */
- if (ucode_raw->size < iwl3945_ucode_get_header_size(1)) {
- IWL_ERR(priv, "File size way too small!\n");
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Data from ucode file: header followed by uCode images */
- ucode = (struct iwl_ucode_header *)ucode_raw->data;
-
- priv->ucode_ver = le32_to_cpu(ucode->ver);
- api_ver = IWL_UCODE_API(priv->ucode_ver);
- inst_size = iwl3945_ucode_get_inst_size(ucode);
- data_size = iwl3945_ucode_get_data_size(ucode);
- init_size = iwl3945_ucode_get_init_size(ucode);
- init_data_size = iwl3945_ucode_get_init_data_size(ucode);
- boot_size = iwl3945_ucode_get_boot_size(ucode);
- src = iwl3945_ucode_get_data(ucode);
-
- /* api_ver should match the api version forming part of the
- * firmware filename ... but we don't check for that and only rely
- * on the API version read from firmware header from here on forward */
-
- if (api_ver < api_min || api_ver > api_max) {
- IWL_ERR(priv, "Driver unable to support your firmware API. "
- "Driver supports v%u, firmware is v%u.\n",
- api_max, api_ver);
- priv->ucode_ver = 0;
- ret = -EINVAL;
- goto err_release;
- }
- if (api_ver != api_max)
- IWL_ERR(priv, "Firmware has old API version. Expected %u, "
- "got %u. New firmware can be obtained "
- "from http://www.intellinuxwireless.org.\n",
- api_max, api_ver);
-
- IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
- IWL_UCODE_MAJOR(priv->ucode_ver),
- IWL_UCODE_MINOR(priv->ucode_ver),
- IWL_UCODE_API(priv->ucode_ver),
- IWL_UCODE_SERIAL(priv->ucode_ver));
-
- snprintf(priv->hw->wiphy->fw_version,
- sizeof(priv->hw->wiphy->fw_version),
- "%u.%u.%u.%u",
- IWL_UCODE_MAJOR(priv->ucode_ver),
- IWL_UCODE_MINOR(priv->ucode_ver),
- IWL_UCODE_API(priv->ucode_ver),
- IWL_UCODE_SERIAL(priv->ucode_ver));
-
- IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
- priv->ucode_ver);
- IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %u\n",
- inst_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %u\n",
- data_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %u\n",
- init_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %u\n",
- init_data_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %u\n",
- boot_size);
-
-
- /* Verify size of file vs. image size info in file's header */
- if (ucode_raw->size != iwl3945_ucode_get_header_size(api_ver) +
- inst_size + data_size + init_size +
- init_data_size + boot_size) {
-
- IWL_DEBUG_INFO(priv,
- "uCode file size %zd does not match expected size\n",
- ucode_raw->size);
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Verify that uCode images will fit in card's SRAM */
- if (inst_size > IWL39_MAX_INST_SIZE) {
- IWL_DEBUG_INFO(priv, "uCode instr len %d too large to fit in\n",
- inst_size);
- ret = -EINVAL;
- goto err_release;
- }
-
- if (data_size > IWL39_MAX_DATA_SIZE) {
- IWL_DEBUG_INFO(priv, "uCode data len %d too large to fit in\n",
- data_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (init_size > IWL39_MAX_INST_SIZE) {
- IWL_DEBUG_INFO(priv,
- "uCode init instr len %d too large to fit in\n",
- init_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (init_data_size > IWL39_MAX_DATA_SIZE) {
- IWL_DEBUG_INFO(priv,
- "uCode init data len %d too large to fit in\n",
- init_data_size);
- ret = -EINVAL;
- goto err_release;
- }
- if (boot_size > IWL39_MAX_BSM_SIZE) {
- IWL_DEBUG_INFO(priv,
- "uCode boot instr len %d too large to fit in\n",
- boot_size);
- ret = -EINVAL;
- goto err_release;
- }
-
- /* Allocate ucode buffers for card's bus-master loading ... */
-
- /* Runtime instructions and 2 copies of data:
- * 1) unmodified from disk
- * 2) backup cache for save/restore during power-downs */
- priv->ucode_code.len = inst_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
-
- priv->ucode_data.len = data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
-
- priv->ucode_data_backup.len = data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
-
- if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
- !priv->ucode_data_backup.v_addr)
- goto err_pci_alloc;
-
- /* Initialization instructions and data */
- if (init_size && init_data_size) {
- priv->ucode_init.len = init_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
-
- priv->ucode_init_data.len = init_data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
-
- if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
- goto err_pci_alloc;
- }
-
- /* Bootstrap (instructions only, no data) */
- if (boot_size) {
- priv->ucode_boot.len = boot_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
-
- if (!priv->ucode_boot.v_addr)
- goto err_pci_alloc;
- }
-
- /* Copy images into buffers for card's bus-master reads ... */
-
- /* Runtime instructions (first block of data in file) */
- len = inst_size;
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) uCode instr len %zd\n", len);
- memcpy(priv->ucode_code.v_addr, src, len);
- src += len;
-
- IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
- priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
-
- /* Runtime data (2nd block)
- * NOTE: Copy into backup buffer will be done in iwl3945_up() */
- len = data_size;
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) uCode data len %zd\n", len);
- memcpy(priv->ucode_data.v_addr, src, len);
- memcpy(priv->ucode_data_backup.v_addr, src, len);
- src += len;
-
- /* Initialization instructions (3rd block) */
- if (init_size) {
- len = init_size;
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) init instr len %zd\n", len);
- memcpy(priv->ucode_init.v_addr, src, len);
- src += len;
- }
-
- /* Initialization data (4th block) */
- if (init_data_size) {
- len = init_data_size;
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) init data len %zd\n", len);
- memcpy(priv->ucode_init_data.v_addr, src, len);
- src += len;
- }
-
- /* Bootstrap instructions (5th block) */
- len = boot_size;
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) boot instr len %zd\n", len);
- memcpy(priv->ucode_boot.v_addr, src, len);
-
- /* We have our copies now, allow OS release its copies */
- release_firmware(ucode_raw);
- return 0;
-
- err_pci_alloc:
- IWL_ERR(priv, "failed to allocate pci memory\n");
- ret = -ENOMEM;
- iwl3945_dealloc_ucode_pci(priv);
-
- err_release:
- release_firmware(ucode_raw);
-
- error:
- return ret;
-}
-
-
-/**
- * iwl3945_set_ucode_ptrs - Set uCode address location
- *
- * Tell initialization uCode where to find runtime uCode.
- *
- * BSM registers initially contain pointers to initialization uCode.
- * We need to replace them to load runtime uCode inst and data,
- * and to save runtime data when powering down.
- */
-static int iwl3945_set_ucode_ptrs(struct iwl_priv *priv)
-{
- dma_addr_t pinst;
- dma_addr_t pdata;
-
- /* bits 31:0 for 3945 */
- pinst = priv->ucode_code.p_addr;
- pdata = priv->ucode_data_backup.p_addr;
-
- /* Tell bootstrap uCode where to find image to load */
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_PTR_REG, pinst);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_PTR_REG, pdata);
- iwl_legacy_write_prph(priv, BSM_DRAM_DATA_BYTECOUNT_REG,
- priv->ucode_data.len);
-
- /* Inst byte count must be last to set up, bit 31 signals uCode
- * that all new ptr/size info is in place */
- iwl_legacy_write_prph(priv, BSM_DRAM_INST_BYTECOUNT_REG,
- priv->ucode_code.len | BSM_DRAM_INST_LOAD);
-
- IWL_DEBUG_INFO(priv, "Runtime uCode pointers are set.\n");
-
- return 0;
-}
-
-/**
- * iwl3945_init_alive_start - Called after REPLY_ALIVE notification received
- *
- * Called after REPLY_ALIVE notification received from "initialize" uCode.
- *
- * Tell "initialize" uCode to go ahead and load the runtime uCode.
- */
-static void iwl3945_init_alive_start(struct iwl_priv *priv)
-{
- /* Check alive response for "valid" sign from uCode */
- if (priv->card_alive_init.is_valid != UCODE_VALID_OK) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Initialize Alive failed.\n");
- goto restart;
- }
-
- /* Bootstrap uCode has loaded initialize uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "initialize" alive if code weren't properly loaded. */
- if (iwl3945_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Bad \"initialize\" uCode load.\n");
- goto restart;
- }
-
- /* Send pointers to protocol/runtime uCode image ... init code will
- * load and launch runtime uCode, which will send us another "Alive"
- * notification. */
- IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
- if (iwl3945_set_ucode_ptrs(priv)) {
- /* Runtime instruction load won't happen;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Couldn't set up uCode pointers.\n");
- goto restart;
- }
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-/**
- * iwl3945_alive_start - called after REPLY_ALIVE notification received
- * from protocol/runtime uCode (initialization uCode's
- * Alive gets handled by iwl3945_init_alive_start()).
- */
-static void iwl3945_alive_start(struct iwl_priv *priv)
-{
- int thermal_spin = 0;
- u32 rfkill;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
-
- if (priv->card_alive.is_valid != UCODE_VALID_OK) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Alive failed.\n");
- goto restart;
- }
-
- /* Initialize uCode has loaded Runtime uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "runtime" alive if code weren't properly loaded. */
- if (iwl3945_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
- goto restart;
- }
-
- rfkill = iwl_legacy_read_prph(priv, APMG_RFKILL_REG);
- IWL_DEBUG_INFO(priv, "RFKILL status: 0x%x\n", rfkill);
-
- if (rfkill & 0x1) {
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- /* if RFKILL is not on, then wait for thermal
- * sensor in adapter to kick in */
- while (iwl3945_hw_get_temperature(priv) == 0) {
- thermal_spin++;
- udelay(10);
- }
-
- if (thermal_spin)
- IWL_DEBUG_INFO(priv, "Thermal calibration took %dus\n",
- thermal_spin * 10);
- } else
- set_bit(STATUS_RF_KILL_HW, &priv->status);
-
- /* After the ALIVE response, we can send commands to 3945 uCode */
- set_bit(STATUS_ALIVE, &priv->status);
-
- /* Enable watchdog to monitor the driver tx queues */
- iwl_legacy_setup_watchdog(priv);
-
- if (iwl_legacy_is_rfkill(priv))
- return;
-
- ieee80211_wake_queues(priv->hw);
-
- priv->active_rate = IWL_RATES_MASK_3945;
-
- iwl_legacy_power_update_mode(priv, true);
-
- if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
- struct iwl3945_rxon_cmd *active_rxon =
- (struct iwl3945_rxon_cmd *)(&ctx->active);
-
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- } else {
- /* Initialize our rx_config data */
- iwl_legacy_connection_init_rx_config(priv, ctx);
- }
-
- /* Configure Bluetooth device coexistence support */
- iwl_legacy_send_bt_config(priv);
-
- set_bit(STATUS_READY, &priv->status);
-
- /* Configure the adapter for unassociated operation */
- iwl3945_commit_rxon(priv, ctx);
-
- iwl3945_reg_txpower_periodic(priv);
-
- IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
- wake_up(&priv->wait_command_queue);
-
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-static void iwl3945_cancel_deferred_work(struct iwl_priv *priv);
-
-static void __iwl3945_down(struct iwl_priv *priv)
-{
- unsigned long flags;
- int exit_pending;
-
- IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
-
- iwl_legacy_scan_cancel_timeout(priv, 200);
-
- exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
- * to prevent rearm timer */
- del_timer_sync(&priv->watchdog);
-
- /* Station information will now be cleared in device */
- iwl_legacy_clear_ucode_stations(priv, NULL);
- iwl_legacy_dealloc_bcast_stations(priv);
- iwl_legacy_clear_driver_stations(priv);
-
- /* Unblock any waiting calls */
- wake_up_all(&priv->wait_command_queue);
-
- /* Wipe out the EXIT_PENDING status bit if we are not actually
- * exiting the module */
- if (!exit_pending)
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* stop and reset the on-board processor */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- /* tell the device to stop sending interrupts */
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl3945_synchronize_irq(priv);
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- /* If we have not previously called iwl3945_init() then
- * clear all bits but the RF Kill bits and return */
- if (!iwl_legacy_is_init(priv)) {
- priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
- goto exit;
- }
-
- /* ...otherwise clear out all the status bits but the RF Kill
- * bit and continue taking the NIC down. */
- priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_FW_ERROR, &priv->status) <<
- STATUS_FW_ERROR |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
-
- iwl3945_hw_txq_ctx_stop(priv);
- iwl3945_hw_rxq_stop(priv);
-
- /* Power-down device's busmaster DMA clocks */
- iwl_legacy_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
- udelay(5);
-
- /* Stop the device, and put it in low power state */
- iwl_legacy_apm_stop(priv);
-
- exit:
- memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
-
- if (priv->beacon_skb)
- dev_kfree_skb(priv->beacon_skb);
- priv->beacon_skb = NULL;
-
- /* clear out any free frames */
- iwl3945_clear_free_frames(priv);
-}
-
-static void iwl3945_down(struct iwl_priv *priv)
-{
- mutex_lock(&priv->mutex);
- __iwl3945_down(priv);
- mutex_unlock(&priv->mutex);
-
- iwl3945_cancel_deferred_work(priv);
-}
-
-#define MAX_HW_RESTARTS 5
-
-static int iwl3945_alloc_bcast_station(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- unsigned long flags;
- u8 sta_id;
-
- spin_lock_irqsave(&priv->sta_lock, flags);
- sta_id = iwl_legacy_prep_station(priv, ctx,
- iwlegacy_bcast_addr, false, NULL);
- if (sta_id == IWL_INVALID_STATION) {
- IWL_ERR(priv, "Unable to prepare broadcast station\n");
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return -EINVAL;
- }
-
- priv->stations[sta_id].used |= IWL_STA_DRIVER_ACTIVE;
- priv->stations[sta_id].used |= IWL_STA_BCAST;
- spin_unlock_irqrestore(&priv->sta_lock, flags);
-
- return 0;
-}
-
-static int __iwl3945_up(struct iwl_priv *priv)
-{
- int rc, i;
-
- rc = iwl3945_alloc_bcast_station(priv);
- if (rc)
- return rc;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
- return -EIO;
- }
-
- if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
- IWL_ERR(priv, "ucode not available for device bring up\n");
- return -EIO;
- }
-
- /* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- else {
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
- return -ENODEV;
- }
-
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
-
- rc = iwl3945_hw_nic_init(priv);
- if (rc) {
- IWL_ERR(priv, "Unable to int nic\n");
- return rc;
- }
-
- /* make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- /* clear (again), then enable host interrupts */
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl_legacy_enable_interrupts(priv);
-
- /* really make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- /* Copy original ucode data image from disk into backup cache.
- * This will be used to initialize the on-board processor's
- * data SRAM for a clean start when the runtime program first loads. */
- memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
- priv->ucode_data.len);
-
- /* We return success when we resume from suspend and rf_kill is on. */
- if (test_bit(STATUS_RF_KILL_HW, &priv->status))
- return 0;
-
- for (i = 0; i < MAX_HW_RESTARTS; i++) {
-
- /* load bootstrap state machine,
- * load bootstrap program into processor's memory,
- * prepare to load the "initialize" uCode */
- rc = priv->cfg->ops->lib->load_ucode(priv);
-
- if (rc) {
- IWL_ERR(priv,
- "Unable to set up bootstrap uCode: %d\n", rc);
- continue;
- }
-
- /* start card; "initialize" will load runtime ucode */
- iwl3945_nic_start(priv);
-
- IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
-
- return 0;
- }
-
- set_bit(STATUS_EXIT_PENDING, &priv->status);
- __iwl3945_down(priv);
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* tried to restart and config the device for as long as our
- * patience could withstand */
- IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
- return -EIO;
-}
-
-
-/*****************************************************************************
- *
- * Workqueue callbacks
- *
- *****************************************************************************/
-
-static void iwl3945_bg_init_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, init_alive_start.work);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- goto out;
-
- iwl3945_init_alive_start(priv);
-out:
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl3945_bg_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, alive_start.work);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- goto out;
-
- iwl3945_alive_start(priv);
-out:
- mutex_unlock(&priv->mutex);
-}
-
-/*
- * 3945 cannot interrupt driver when hardware rf kill switch toggles;
- * driver must poll CSR_GP_CNTRL_REG register for change. This register
- * *is* readable even when device has been SW_RESET into low power mode
- * (e.g. during RF KILL).
- */
-static void iwl3945_rfkill_poll(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, _3945.rfkill_poll.work);
- bool old_rfkill = test_bit(STATUS_RF_KILL_HW, &priv->status);
- bool new_rfkill = !(iwl_read32(priv, CSR_GP_CNTRL)
- & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW);
-
- if (new_rfkill != old_rfkill) {
- if (new_rfkill)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
- wiphy_rfkill_set_hw_state(priv->hw->wiphy, new_rfkill);
-
- IWL_DEBUG_RF_KILL(priv, "RF_KILL bit toggled to %s.\n",
- new_rfkill ? "disable radio" : "enable radio");
- }
-
- /* Keep this running, even if radio now enabled. This will be
- * cancelled in mac_start() if system decides to start again */
- queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll,
- round_jiffies_relative(2 * HZ));
-
-}
-
-int iwl3945_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif)
-{
- struct iwl_host_cmd cmd = {
- .id = REPLY_SCAN_CMD,
- .len = sizeof(struct iwl3945_scan_cmd),
- .flags = CMD_SIZE_HUGE,
- };
- struct iwl3945_scan_cmd *scan;
- u8 n_probes = 0;
- enum ieee80211_band band;
- bool is_active = false;
- int ret;
- u16 len;
-
- lockdep_assert_held(&priv->mutex);
-
- if (!priv->scan_cmd) {
- priv->scan_cmd = kmalloc(sizeof(struct iwl3945_scan_cmd) +
- IWL_MAX_SCAN_SIZE, GFP_KERNEL);
- if (!priv->scan_cmd) {
- IWL_DEBUG_SCAN(priv, "Fail to allocate scan memory\n");
- return -ENOMEM;
- }
- }
- scan = priv->scan_cmd;
- memset(scan, 0, sizeof(struct iwl3945_scan_cmd) + IWL_MAX_SCAN_SIZE);
-
- scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH;
- scan->quiet_time = IWL_ACTIVE_QUIET_TIME;
-
- if (iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS)) {
- u16 interval;
- u32 extra;
- u32 suspend_time = 100;
- u32 scan_suspend_time = 100;
-
- IWL_DEBUG_INFO(priv, "Scanning while associated...\n");
-
- interval = vif->bss_conf.beacon_int;
-
- scan->suspend_time = 0;
- scan->max_out_time = cpu_to_le32(200 * 1024);
- if (!interval)
- interval = suspend_time;
- /*
- * suspend time format:
- * 0-19: beacon interval in usec (time before exec.)
- * 20-23: 0
- * 24-31: number of beacons (suspend between channels)
- */
-
- extra = (suspend_time / interval) << 24;
- scan_suspend_time = 0xFF0FFFFF &
- (extra | ((suspend_time % interval) * 1024));
-
- scan->suspend_time = cpu_to_le32(scan_suspend_time);
- IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n",
- scan_suspend_time, interval);
- }
-
- if (priv->scan_request->n_ssids) {
- int i, p = 0;
- IWL_DEBUG_SCAN(priv, "Kicking off active scan\n");
- for (i = 0; i < priv->scan_request->n_ssids; i++) {
- /* always does wildcard anyway */
- if (!priv->scan_request->ssids[i].ssid_len)
- continue;
- scan->direct_scan[p].id = WLAN_EID_SSID;
- scan->direct_scan[p].len =
- priv->scan_request->ssids[i].ssid_len;
- memcpy(scan->direct_scan[p].ssid,
- priv->scan_request->ssids[i].ssid,
- priv->scan_request->ssids[i].ssid_len);
- n_probes++;
- p++;
- }
- is_active = true;
- } else
- IWL_DEBUG_SCAN(priv, "Kicking off passive scan.\n");
-
- /* We don't build a direct scan probe request; the uCode will do
- * that based on the direct_mask added to each channel entry */
- scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK;
- scan->tx_cmd.sta_id = priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id;
- scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
-
- /* flags + rate selection */
-
- switch (priv->scan_band) {
- case IEEE80211_BAND_2GHZ:
- scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK;
- scan->tx_cmd.rate = IWL_RATE_1M_PLCP;
- band = IEEE80211_BAND_2GHZ;
- break;
- case IEEE80211_BAND_5GHZ:
- scan->tx_cmd.rate = IWL_RATE_6M_PLCP;
- band = IEEE80211_BAND_5GHZ;
- break;
- default:
- IWL_WARN(priv, "Invalid scan band\n");
- return -EIO;
- }
-
- /*
- * If active scaning is requested but a certain channel
- * is marked passive, we can do active scanning if we
- * detect transmissions.
- */
- scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT :
- IWL_GOOD_CRC_TH_DISABLED;
-
- len = iwl_legacy_fill_probe_req(priv, (struct ieee80211_mgmt *)scan->data,
- vif->addr, priv->scan_request->ie,
- priv->scan_request->ie_len,
- IWL_MAX_SCAN_SIZE - sizeof(*scan));
- scan->tx_cmd.len = cpu_to_le16(len);
-
- /* select Rx antennas */
- scan->flags |= iwl3945_get_antenna_flags(priv);
-
- scan->channel_count = iwl3945_get_channels_for_scan(priv, band, is_active, n_probes,
- (void *)&scan->data[len], vif);
- if (scan->channel_count == 0) {
- IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count);
- return -EIO;
- }
-
- cmd.len += le16_to_cpu(scan->tx_cmd.len) +
- scan->channel_count * sizeof(struct iwl3945_scan_channel);
- cmd.data = scan;
- scan->len = cpu_to_le16(cmd.len);
-
- set_bit(STATUS_SCAN_HW, &priv->status);
- ret = iwl_legacy_send_cmd_sync(priv, &cmd);
- if (ret)
- clear_bit(STATUS_SCAN_HW, &priv->status);
- return ret;
-}
-
-void iwl3945_post_scan(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- /*
- * Since setting the RXON may have been deferred while
- * performing the scan, fire one off if needed
- */
- if (memcmp(&ctx->staging, &ctx->active, sizeof(ctx->staging)))
- iwl3945_commit_rxon(priv, ctx);
-}
-
-static void iwl3945_bg_restart(struct work_struct *data)
-{
- struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
- struct iwl_rxon_context *ctx;
- mutex_lock(&priv->mutex);
- for_each_context(priv, ctx)
- ctx->vif = NULL;
- priv->is_open = 0;
- mutex_unlock(&priv->mutex);
- iwl3945_down(priv);
- ieee80211_restart_hw(priv->hw);
- } else {
- iwl3945_down(priv);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- __iwl3945_up(priv);
- mutex_unlock(&priv->mutex);
- }
-}
-
-static void iwl3945_bg_rx_replenish(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, rx_replenish);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- goto out;
-
- iwl3945_rx_replenish(priv);
-out:
- mutex_unlock(&priv->mutex);
-}
-
-void iwl3945_post_associate(struct iwl_priv *priv)
-{
- int rc = 0;
- struct ieee80211_conf *conf = NULL;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- if (!ctx->vif || !priv->is_open)
- return;
-
- IWL_DEBUG_ASSOC(priv, "Associated as %d to: %pM\n",
- ctx->vif->bss_conf.aid, ctx->active.bssid_addr);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- iwl_legacy_scan_cancel_timeout(priv, 200);
-
- conf = iwl_legacy_ieee80211_get_hw_conf(priv->hw);
-
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl3945_commit_rxon(priv, ctx);
-
- rc = iwl_legacy_send_rxon_timing(priv, ctx);
- if (rc)
- IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
- "Attempting to continue.\n");
-
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
-
- ctx->staging.assoc_id = cpu_to_le16(ctx->vif->bss_conf.aid);
-
- IWL_DEBUG_ASSOC(priv, "assoc id %d beacon interval %d\n",
- ctx->vif->bss_conf.aid, ctx->vif->bss_conf.beacon_int);
-
- if (ctx->vif->bss_conf.use_short_preamble)
- ctx->staging.flags |= RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
- if (ctx->vif->bss_conf.use_short_slot)
- ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK;
- else
- ctx->staging.flags &= ~RXON_FLG_SHORT_SLOT_MSK;
- }
-
- iwl3945_commit_rxon(priv, ctx);
-
- switch (ctx->vif->type) {
- case NL80211_IFTYPE_STATION:
- iwl3945_rate_scale_init(priv->hw, IWL_AP_ID);
- break;
- case NL80211_IFTYPE_ADHOC:
- iwl3945_send_beacon_cmd(priv);
- break;
- default:
- IWL_ERR(priv, "%s Should not be called in %d mode\n",
- __func__, ctx->vif->type);
- break;
- }
-}
-
-/*****************************************************************************
- *
- * mac80211 entry point functions
- *
- *****************************************************************************/
-
-#define UCODE_READY_TIMEOUT (2 * HZ)
-
-static int iwl3945_mac_start(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
- int ret;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- /* we should be verifying the device is ready to be opened */
- mutex_lock(&priv->mutex);
-
- /* fetch ucode file from disk, alloc and copy to bus-master buffers ...
- * ucode filename and max sizes are card-specific. */
-
- if (!priv->ucode_code.len) {
- ret = iwl3945_read_ucode(priv);
- if (ret) {
- IWL_ERR(priv, "Could not read microcode: %d\n", ret);
- mutex_unlock(&priv->mutex);
- goto out_release_irq;
- }
- }
-
- ret = __iwl3945_up(priv);
-
- mutex_unlock(&priv->mutex);
-
- if (ret)
- goto out_release_irq;
-
- IWL_DEBUG_INFO(priv, "Start UP work.\n");
-
- /* Wait for START_ALIVE from ucode. Otherwise callbacks from
- * mac80211 will not be run successfully. */
- ret = wait_event_timeout(priv->wait_command_queue,
- test_bit(STATUS_READY, &priv->status),
- UCODE_READY_TIMEOUT);
- if (!ret) {
- if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_ERR(priv,
- "Wait for START_ALIVE timeout after %dms.\n",
- jiffies_to_msecs(UCODE_READY_TIMEOUT));
- ret = -ETIMEDOUT;
- goto out_release_irq;
- }
- }
-
- /* ucode is running and will send rfkill notifications,
- * no need to poll the killswitch state anymore */
- cancel_delayed_work(&priv->_3945.rfkill_poll);
-
- priv->is_open = 1;
- IWL_DEBUG_MAC80211(priv, "leave\n");
- return 0;
-
-out_release_irq:
- priv->is_open = 0;
- IWL_DEBUG_MAC80211(priv, "leave - failed\n");
- return ret;
-}
-
-static void iwl3945_mac_stop(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (!priv->is_open) {
- IWL_DEBUG_MAC80211(priv, "leave - skip\n");
- return;
- }
-
- priv->is_open = 0;
-
- iwl3945_down(priv);
-
- flush_workqueue(priv->workqueue);
-
- /* start polling the killswitch state again */
- queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll,
- round_jiffies_relative(2 * HZ));
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-
-static void iwl3945_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
- ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
-
- if (iwl3945_tx_skb(priv, skb))
- dev_kfree_skb_any(skb);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-
-void iwl3945_config_ap(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct ieee80211_vif *vif = ctx->vif;
- int rc = 0;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- /* The following should be done only at AP bring up */
- if (!(iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS))) {
-
- /* RXON - unassoc (to set timing command) */
- ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- iwl3945_commit_rxon(priv, ctx);
-
- /* RXON Timing */
- rc = iwl_legacy_send_rxon_timing(priv, ctx);
- if (rc)
- IWL_WARN(priv, "REPLY_RXON_TIMING failed - "
- "Attempting to continue.\n");
-
- ctx->staging.assoc_id = 0;
-
- if (vif->bss_conf.use_short_preamble)
- ctx->staging.flags |=
- RXON_FLG_SHORT_PREAMBLE_MSK;
- else
- ctx->staging.flags &=
- ~RXON_FLG_SHORT_PREAMBLE_MSK;
-
- if (ctx->staging.flags & RXON_FLG_BAND_24G_MSK) {
- if (vif->bss_conf.use_short_slot)
- ctx->staging.flags |=
- RXON_FLG_SHORT_SLOT_MSK;
- else
- ctx->staging.flags &=
- ~RXON_FLG_SHORT_SLOT_MSK;
- }
- /* restore RXON assoc */
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
- iwl3945_commit_rxon(priv, ctx);
- }
- iwl3945_send_beacon_cmd(priv);
-}
-
-static int iwl3945_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- struct iwl_priv *priv = hw->priv;
- int ret = 0;
- u8 sta_id = IWL_INVALID_STATION;
- u8 static_key;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (iwl3945_mod_params.sw_crypto) {
- IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
- return -EOPNOTSUPP;
- }
-
- /*
- * To support IBSS RSN, don't program group keys in IBSS, the
- * hardware will then not attempt to decrypt the frames.
- */
- if (vif->type == NL80211_IFTYPE_ADHOC &&
- !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
- return -EOPNOTSUPP;
-
- static_key = !iwl_legacy_is_associated(priv, IWL_RXON_CTX_BSS);
-
- if (!static_key) {
- sta_id = iwl_legacy_sta_id_or_broadcast(
- priv, &priv->contexts[IWL_RXON_CTX_BSS], sta);
- if (sta_id == IWL_INVALID_STATION)
- return -EINVAL;
- }
-
- mutex_lock(&priv->mutex);
- iwl_legacy_scan_cancel_timeout(priv, 100);
-
- switch (cmd) {
- case SET_KEY:
- if (static_key)
- ret = iwl3945_set_static_key(priv, key);
- else
- ret = iwl3945_set_dynamic_key(priv, key, sta_id);
- IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
- break;
- case DISABLE_KEY:
- if (static_key)
- ret = iwl3945_remove_static_key(priv);
- else
- ret = iwl3945_clear_sta_key_info(priv, sta_id);
- IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
- break;
- default:
- ret = -EINVAL;
- }
-
- mutex_unlock(&priv->mutex);
- IWL_DEBUG_MAC80211(priv, "leave\n");
-
- return ret;
-}
-
-static int iwl3945_mac_sta_add(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl3945_sta_priv *sta_priv = (void *)sta->drv_priv;
- int ret;
- bool is_ap = vif->type == NL80211_IFTYPE_STATION;
- u8 sta_id;
-
- IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
- sta->addr);
- mutex_lock(&priv->mutex);
- IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
- sta->addr);
- sta_priv->common.sta_id = IWL_INVALID_STATION;
-
-
- ret = iwl_legacy_add_station_common(priv,
- &priv->contexts[IWL_RXON_CTX_BSS],
- sta->addr, is_ap, sta, &sta_id);
- if (ret) {
- IWL_ERR(priv, "Unable to add station %pM (%d)\n",
- sta->addr, ret);
- /* Should we return success if return code is EEXIST ? */
- mutex_unlock(&priv->mutex);
- return ret;
- }
-
- sta_priv->common.sta_id = sta_id;
-
- /* Initialize rate scaling */
- IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
- sta->addr);
- iwl3945_rs_rate_init(priv, sta, sta_id);
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-static void iwl3945_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast)
-{
- struct iwl_priv *priv = hw->priv;
- __le32 filter_or = 0, filter_nand = 0;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
-#define CHK(test, flag) do { \
- if (*total_flags & (test)) \
- filter_or |= (flag); \
- else \
- filter_nand |= (flag); \
- } while (0)
-
- IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
- changed_flags, *total_flags);
-
- CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
- CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK);
- CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
-
-#undef CHK
-
- mutex_lock(&priv->mutex);
-
- ctx->staging.filter_flags &= ~filter_nand;
- ctx->staging.filter_flags |= filter_or;
-
- /*
- * Not committing directly because hardware can perform a scan,
- * but even if hw is ready, committing here breaks for some reason,
- * we'll eventually commit the filter flags change anyway.
- */
-
- mutex_unlock(&priv->mutex);
-
- /*
- * Receiving all multicast frames is always enabled by the
- * default flags setup in iwl_legacy_connection_init_rx_config()
- * since we currently do not support programming multicast
- * filters into the device.
- */
- *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
- FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
-}
-
-
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-
-/*
- * The following adds a new attribute to the sysfs representation
- * of this device driver (i.e. a new file in /sys/bus/pci/drivers/iwl/)
- * used for controlling the debug level.
- *
- * See the level definitions in iwl for details.
- *
- * The debug_level being managed using sysfs below is a per device debug
- * level that is used instead of the global debug level if it (the per
- * device debug level) is set.
- */
-static ssize_t iwl3945_show_debug_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "0x%08X\n", iwl_legacy_get_debug_level(priv));
-}
-static ssize_t iwl3945_store_debug_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 0, &val);
- if (ret)
- IWL_INFO(priv, "%s is not in hex or decimal form.\n", buf);
- else {
- priv->debug_level = val;
- if (iwl_legacy_alloc_traffic_mem(priv))
- IWL_ERR(priv,
- "Not enough memory to generate traffic log\n");
- }
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
- iwl3945_show_debug_level, iwl3945_store_debug_level);
-
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
-
-static ssize_t iwl3945_show_temperature(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", iwl3945_hw_get_temperature(priv));
-}
-
-static DEVICE_ATTR(temperature, S_IRUGO, iwl3945_show_temperature, NULL);
-
-static ssize_t iwl3945_show_tx_power(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
-}
-
-static ssize_t iwl3945_store_tx_power(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- char *p = (char *)buf;
- u32 val;
-
- val = simple_strtoul(p, &p, 10);
- if (p == buf)
- IWL_INFO(priv, ": %s is not in decimal form.\n", buf);
- else
- iwl3945_hw_reg_set_txpower(priv, val);
-
- return count;
-}
-
-static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, iwl3945_show_tx_power, iwl3945_store_tx_power);
-
-static ssize_t iwl3945_show_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- return sprintf(buf, "0x%04X\n", ctx->active.flags);
-}
-
-static ssize_t iwl3945_store_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- u32 flags = simple_strtoul(buf, NULL, 0);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- mutex_lock(&priv->mutex);
- if (le32_to_cpu(ctx->staging.flags) != flags) {
- /* Cancel any currently running scans... */
- if (iwl_legacy_scan_cancel_timeout(priv, 100))
- IWL_WARN(priv, "Could not cancel scan.\n");
- else {
- IWL_DEBUG_INFO(priv, "Committing rxon.flags = 0x%04X\n",
- flags);
- ctx->staging.flags = cpu_to_le32(flags);
- iwl3945_commit_rxon(priv, ctx);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(flags, S_IWUSR | S_IRUGO, iwl3945_show_flags, iwl3945_store_flags);
-
-static ssize_t iwl3945_show_filter_flags(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- return sprintf(buf, "0x%04X\n",
- le32_to_cpu(ctx->active.filter_flags));
-}
-
-static ssize_t iwl3945_store_filter_flags(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- u32 filter_flags = simple_strtoul(buf, NULL, 0);
-
- mutex_lock(&priv->mutex);
- if (le32_to_cpu(ctx->staging.filter_flags) != filter_flags) {
- /* Cancel any currently running scans... */
- if (iwl_legacy_scan_cancel_timeout(priv, 100))
- IWL_WARN(priv, "Could not cancel scan.\n");
- else {
- IWL_DEBUG_INFO(priv, "Committing rxon.filter_flags = "
- "0x%04X\n", filter_flags);
- ctx->staging.filter_flags =
- cpu_to_le32(filter_flags);
- iwl3945_commit_rxon(priv, ctx);
- }
- }
- mutex_unlock(&priv->mutex);
-
- return count;
-}
-
-static DEVICE_ATTR(filter_flags, S_IWUSR | S_IRUGO, iwl3945_show_filter_flags,
- iwl3945_store_filter_flags);
-
-static ssize_t iwl3945_show_measurement(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_spectrum_notification measure_report;
- u32 size = sizeof(measure_report), len = 0, ofs = 0;
- u8 *data = (u8 *)&measure_report;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->lock, flags);
- if (!(priv->measurement_status & MEASUREMENT_READY)) {
- spin_unlock_irqrestore(&priv->lock, flags);
- return 0;
- }
- memcpy(&measure_report, &priv->measure_report, size);
- priv->measurement_status = 0;
- spin_unlock_irqrestore(&priv->lock, flags);
-
- while (size && (PAGE_SIZE - len)) {
- hex_dump_to_buffer(data + ofs, size, 16, 1, buf + len,
- PAGE_SIZE - len, 1);
- len = strlen(buf);
- if (PAGE_SIZE - len)
- buf[len++] = '\n';
-
- ofs += 16;
- size -= min(size, 16U);
- }
-
- return len;
-}
-
-static ssize_t iwl3945_store_measurement(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- struct ieee80211_measurement_params params = {
- .channel = le16_to_cpu(ctx->active.channel),
- .start_time = cpu_to_le64(priv->_3945.last_tsf),
- .duration = cpu_to_le16(1),
- };
- u8 type = IWL_MEASURE_BASIC;
- u8 buffer[32];
- u8 channel;
-
- if (count) {
- char *p = buffer;
- strncpy(buffer, buf, min(sizeof(buffer), count));
- channel = simple_strtoul(p, NULL, 0);
- if (channel)
- params.channel = channel;
-
- p = buffer;
- while (*p && *p != ' ')
- p++;
- if (*p)
- type = simple_strtoul(p + 1, NULL, 0);
- }
-
- IWL_DEBUG_INFO(priv, "Invoking measurement of type %d on "
- "channel %d (for '%s')\n", type, params.channel, buf);
- iwl3945_get_measurement(priv, ¶ms, type);
-
- return count;
-}
-
-static DEVICE_ATTR(measurement, S_IRUSR | S_IWUSR,
- iwl3945_show_measurement, iwl3945_store_measurement);
-
-static ssize_t iwl3945_store_retry_rate(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- priv->retry_rate = simple_strtoul(buf, NULL, 0);
- if (priv->retry_rate <= 0)
- priv->retry_rate = 1;
-
- return count;
-}
-
-static ssize_t iwl3945_show_retry_rate(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "%d", priv->retry_rate);
-}
-
-static DEVICE_ATTR(retry_rate, S_IWUSR | S_IRUSR, iwl3945_show_retry_rate,
- iwl3945_store_retry_rate);
-
-
-static ssize_t iwl3945_show_channels(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- /* all this shit doesn't belong into sysfs anyway */
- return 0;
-}
-
-static DEVICE_ATTR(channels, S_IRUSR, iwl3945_show_channels, NULL);
-
-static ssize_t iwl3945_show_antenna(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", iwl3945_mod_params.antenna);
-}
-
-static ssize_t iwl3945_store_antenna(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv __maybe_unused = dev_get_drvdata(d);
- int ant;
-
- if (count == 0)
- return 0;
-
- if (sscanf(buf, "%1i", &ant) != 1) {
- IWL_DEBUG_INFO(priv, "not in hex or decimal form.\n");
- return count;
- }
-
- if ((ant >= 0) && (ant <= 2)) {
- IWL_DEBUG_INFO(priv, "Setting antenna select to %d.\n", ant);
- iwl3945_mod_params.antenna = (enum iwl3945_antenna)ant;
- } else
- IWL_DEBUG_INFO(priv, "Bad antenna select value %d.\n", ant);
-
-
- return count;
-}
-
-static DEVICE_ATTR(antenna, S_IWUSR | S_IRUGO, iwl3945_show_antenna, iwl3945_store_antenna);
-
-static ssize_t iwl3945_show_status(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
- return sprintf(buf, "0x%08x\n", (int)priv->status);
-}
-
-static DEVICE_ATTR(status, S_IRUGO, iwl3945_show_status, NULL);
-
-static ssize_t iwl3945_dump_error_log(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- char *p = (char *)buf;
-
- if (p[0] == '1')
- iwl3945_dump_nic_error_log(priv);
-
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(dump_errors, S_IWUSR, NULL, iwl3945_dump_error_log);
-
-/*****************************************************************************
- *
- * driver setup and tear down
- *
- *****************************************************************************/
-
-static void iwl3945_setup_deferred_work(struct iwl_priv *priv)
-{
- priv->workqueue = create_singlethread_workqueue(DRV_NAME);
-
- init_waitqueue_head(&priv->wait_command_queue);
-
- INIT_WORK(&priv->restart, iwl3945_bg_restart);
- INIT_WORK(&priv->rx_replenish, iwl3945_bg_rx_replenish);
- INIT_DELAYED_WORK(&priv->init_alive_start, iwl3945_bg_init_alive_start);
- INIT_DELAYED_WORK(&priv->alive_start, iwl3945_bg_alive_start);
- INIT_DELAYED_WORK(&priv->_3945.rfkill_poll, iwl3945_rfkill_poll);
-
- iwl_legacy_setup_scan_deferred_work(priv);
-
- iwl3945_hw_setup_deferred_work(priv);
-
- init_timer(&priv->watchdog);
- priv->watchdog.data = (unsigned long)priv;
- priv->watchdog.function = iwl_legacy_bg_watchdog;
-
- tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
- iwl3945_irq_tasklet, (unsigned long)priv);
-}
-
-static void iwl3945_cancel_deferred_work(struct iwl_priv *priv)
-{
- iwl3945_hw_cancel_deferred_work(priv);
-
- cancel_delayed_work_sync(&priv->init_alive_start);
- cancel_delayed_work(&priv->alive_start);
-
- iwl_legacy_cancel_scan_deferred_work(priv);
-}
-
-static struct attribute *iwl3945_sysfs_entries[] = {
- &dev_attr_antenna.attr,
- &dev_attr_channels.attr,
- &dev_attr_dump_errors.attr,
- &dev_attr_flags.attr,
- &dev_attr_filter_flags.attr,
- &dev_attr_measurement.attr,
- &dev_attr_retry_rate.attr,
- &dev_attr_status.attr,
- &dev_attr_temperature.attr,
- &dev_attr_tx_power.attr,
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- &dev_attr_debug_level.attr,
-#endif
- NULL
-};
-
-static struct attribute_group iwl3945_attribute_group = {
- .name = NULL, /* put in device directory */
- .attrs = iwl3945_sysfs_entries,
-};
-
-struct ieee80211_ops iwl3945_hw_ops = {
- .tx = iwl3945_mac_tx,
- .start = iwl3945_mac_start,
- .stop = iwl3945_mac_stop,
- .add_interface = iwl_legacy_mac_add_interface,
- .remove_interface = iwl_legacy_mac_remove_interface,
- .change_interface = iwl_legacy_mac_change_interface,
- .config = iwl_legacy_mac_config,
- .configure_filter = iwl3945_configure_filter,
- .set_key = iwl3945_mac_set_key,
- .conf_tx = iwl_legacy_mac_conf_tx,
- .reset_tsf = iwl_legacy_mac_reset_tsf,
- .bss_info_changed = iwl_legacy_mac_bss_info_changed,
- .hw_scan = iwl_legacy_mac_hw_scan,
- .sta_add = iwl3945_mac_sta_add,
- .sta_remove = iwl_legacy_mac_sta_remove,
- .tx_last_beacon = iwl_legacy_mac_tx_last_beacon,
-};
-
-static int iwl3945_init_drv(struct iwl_priv *priv)
-{
- int ret;
- struct iwl3945_eeprom *eeprom = (struct iwl3945_eeprom *)priv->eeprom;
-
- priv->retry_rate = 1;
- priv->beacon_skb = NULL;
-
- spin_lock_init(&priv->sta_lock);
- spin_lock_init(&priv->hcmd_lock);
-
- INIT_LIST_HEAD(&priv->free_frames);
-
- mutex_init(&priv->mutex);
-
- priv->ieee_channels = NULL;
- priv->ieee_rates = NULL;
- priv->band = IEEE80211_BAND_2GHZ;
-
- priv->iw_mode = NL80211_IFTYPE_STATION;
- priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
-
- /* initialize force reset */
- priv->force_reset.reset_duration = IWL_DELAY_NEXT_FORCE_FW_RELOAD;
-
- if (eeprom->version < EEPROM_3945_EEPROM_VERSION) {
- IWL_WARN(priv, "Unsupported EEPROM version: 0x%04X\n",
- eeprom->version);
- ret = -EINVAL;
- goto err;
- }
- ret = iwl_legacy_init_channel_map(priv);
- if (ret) {
- IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
- goto err;
- }
-
- /* Set up txpower settings in driver for all channels */
- if (iwl3945_txpower_set_from_eeprom(priv)) {
- ret = -EIO;
- goto err_free_channel_map;
- }
-
- ret = iwl_legacy_init_geos(priv);
- if (ret) {
- IWL_ERR(priv, "initializing geos failed: %d\n", ret);
- goto err_free_channel_map;
- }
- iwl3945_init_hw_rates(priv, priv->ieee_rates);
-
- return 0;
-
-err_free_channel_map:
- iwl_legacy_free_channel_map(priv);
-err:
- return ret;
-}
-
-#define IWL3945_MAX_PROBE_REQUEST 200
-
-static int iwl3945_setup_mac(struct iwl_priv *priv)
-{
- int ret;
- struct ieee80211_hw *hw = priv->hw;
-
- hw->rate_control_algorithm = "iwl-3945-rs";
- hw->sta_data_size = sizeof(struct iwl3945_sta_priv);
- hw->vif_data_size = sizeof(struct iwl_vif_priv);
-
- /* Tell mac80211 our characteristics */
- hw->flags = IEEE80211_HW_SIGNAL_DBM |
- IEEE80211_HW_SPECTRUM_MGMT;
-
- hw->wiphy->interface_modes =
- priv->contexts[IWL_RXON_CTX_BSS].interface_modes;
-
- hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
- WIPHY_FLAG_DISABLE_BEACON_HINTS |
- WIPHY_FLAG_IBSS_RSN;
-
- hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX_3945;
- /* we create the 802.11 header and a zero-length SSID element */
- hw->wiphy->max_scan_ie_len = IWL3945_MAX_PROBE_REQUEST - 24 - 2;
-
- /* Default value; 4 EDCA QOS priorities */
- hw->queues = 4;
-
- if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
- priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &priv->bands[IEEE80211_BAND_2GHZ];
-
- if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
- priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
- &priv->bands[IEEE80211_BAND_5GHZ];
-
- iwl_legacy_leds_init(priv);
-
- ret = ieee80211_register_hw(priv->hw);
- if (ret) {
- IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
- return ret;
- }
- priv->mac80211_registered = 1;
-
- return 0;
-}
-
-static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- int err = 0, i;
- struct iwl_priv *priv;
- struct ieee80211_hw *hw;
- struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
- struct iwl3945_eeprom *eeprom;
- unsigned long flags;
-
- /***********************
- * 1. Allocating HW data
- * ********************/
-
- /* mac80211 allocates memory for this device instance, including
- * space for this driver's private structure */
- hw = iwl_legacy_alloc_all(cfg);
- if (hw == NULL) {
- pr_err("Can not allocate network device\n");
- err = -ENOMEM;
- goto out;
- }
- priv = hw->priv;
- SET_IEEE80211_DEV(hw, &pdev->dev);
-
- priv->cmd_queue = IWL39_CMD_QUEUE_NUM;
-
- /* 3945 has only one valid context */
- priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
-
- for (i = 0; i < NUM_IWL_RXON_CTX; i++)
- priv->contexts[i].ctxid = i;
-
- priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
- priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
- priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
- priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
- priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
- priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
- priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
- BIT(NL80211_IFTYPE_STATION) |
- BIT(NL80211_IFTYPE_ADHOC);
- priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
- priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
- priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
-
- /*
- * Disabling hardware scan means that mac80211 will perform scans
- * "the hard way", rather than using device's scan.
- */
- if (iwl3945_mod_params.disable_hw_scan) {
- IWL_DEBUG_INFO(priv, "Disabling hw_scan\n");
- iwl3945_hw_ops.hw_scan = NULL;
- }
-
- IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
- priv->cfg = cfg;
- priv->pci_dev = pdev;
- priv->inta_mask = CSR_INI_SET_MASK;
-
- if (iwl_legacy_alloc_traffic_mem(priv))
- IWL_ERR(priv, "Not enough memory to generate traffic log\n");
-
- /***************************
- * 2. Initializing PCI bus
- * *************************/
- pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
- PCIE_LINK_STATE_CLKPM);
-
- if (pci_enable_device(pdev)) {
- err = -ENODEV;
- goto out_ieee80211_free_hw;
- }
-
- pci_set_master(pdev);
-
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- IWL_WARN(priv, "No suitable DMA available.\n");
- goto out_pci_disable_device;
- }
-
- pci_set_drvdata(pdev, priv);
- err = pci_request_regions(pdev, DRV_NAME);
- if (err)
- goto out_pci_disable_device;
-
- /***********************
- * 3. Read REV Register
- * ********************/
- priv->hw_base = pci_iomap(pdev, 0, 0);
- if (!priv->hw_base) {
- err = -ENODEV;
- goto out_pci_release_regions;
- }
-
- IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
- (unsigned long long) pci_resource_len(pdev, 0));
- IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
-
- /* We disable the RETRY_TIMEOUT register (0x41) to keep
- * PCI Tx retries from interfering with C3 CPU state */
- pci_write_config_byte(pdev, 0x41, 0x00);
-
- /* these spin locks will be used in apm_ops.init and EEPROM access
- * we should init now
- */
- spin_lock_init(&priv->reg_lock);
- spin_lock_init(&priv->lock);
-
- /*
- * stop and reset the on-board processor just in case it is in a
- * strange state ... like being left stranded by a primary kernel
- * and this is now the kdump kernel trying to start up
- */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- /***********************
- * 4. Read EEPROM
- * ********************/
-
- /* Read the EEPROM */
- err = iwl_legacy_eeprom_init(priv);
- if (err) {
- IWL_ERR(priv, "Unable to init EEPROM\n");
- goto out_iounmap;
- }
- /* MAC Address location in EEPROM same for 3945/4965 */
- eeprom = (struct iwl3945_eeprom *)priv->eeprom;
- IWL_DEBUG_INFO(priv, "MAC address: %pM\n", eeprom->mac_address);
- SET_IEEE80211_PERM_ADDR(priv->hw, eeprom->mac_address);
-
- /***********************
- * 5. Setup HW Constants
- * ********************/
- /* Device-specific setup */
- if (iwl3945_hw_set_hw_params(priv)) {
- IWL_ERR(priv, "failed to set hw settings\n");
- goto out_eeprom_free;
- }
-
- /***********************
- * 6. Setup priv
- * ********************/
-
- err = iwl3945_init_drv(priv);
- if (err) {
- IWL_ERR(priv, "initializing driver failed\n");
- goto out_unset_hw_params;
- }
-
- IWL_INFO(priv, "Detected Intel Wireless WiFi Link %s\n",
- priv->cfg->name);
-
- /***********************
- * 7. Setup Services
- * ********************/
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- pci_enable_msi(priv->pci_dev);
-
- err = request_irq(priv->pci_dev->irq, iwl_legacy_isr,
- IRQF_SHARED, DRV_NAME, priv);
- if (err) {
- IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
- goto out_disable_msi;
- }
-
- err = sysfs_create_group(&pdev->dev.kobj, &iwl3945_attribute_group);
- if (err) {
- IWL_ERR(priv, "failed to create sysfs device attributes\n");
- goto out_release_irq;
- }
-
- iwl_legacy_set_rxon_channel(priv,
- &priv->bands[IEEE80211_BAND_2GHZ].channels[5],
- &priv->contexts[IWL_RXON_CTX_BSS]);
- iwl3945_setup_deferred_work(priv);
- iwl3945_setup_rx_handlers(priv);
- iwl_legacy_power_initialize(priv);
-
- /*********************************
- * 8. Setup and Register mac80211
- * *******************************/
-
- iwl_legacy_enable_interrupts(priv);
-
- err = iwl3945_setup_mac(priv);
- if (err)
- goto out_remove_sysfs;
-
- err = iwl_legacy_dbgfs_register(priv, DRV_NAME);
- if (err)
- IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
-
- /* Start monitoring the killswitch */
- queue_delayed_work(priv->workqueue, &priv->_3945.rfkill_poll,
- 2 * HZ);
-
- return 0;
-
- out_remove_sysfs:
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
- out_release_irq:
- free_irq(priv->pci_dev->irq, priv);
- out_disable_msi:
- pci_disable_msi(priv->pci_dev);
- iwl_legacy_free_geos(priv);
- iwl_legacy_free_channel_map(priv);
- out_unset_hw_params:
- iwl3945_unset_hw_params(priv);
- out_eeprom_free:
- iwl_legacy_eeprom_free(priv);
- out_iounmap:
- pci_iounmap(pdev, priv->hw_base);
- out_pci_release_regions:
- pci_release_regions(pdev);
- out_pci_disable_device:
- pci_set_drvdata(pdev, NULL);
- pci_disable_device(pdev);
- out_ieee80211_free_hw:
- iwl_legacy_free_traffic_mem(priv);
- ieee80211_free_hw(priv->hw);
- out:
- return err;
-}
-
-static void __devexit iwl3945_pci_remove(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- unsigned long flags;
-
- if (!priv)
- return;
-
- IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
-
- iwl_legacy_dbgfs_unregister(priv);
-
- set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- iwl_legacy_leds_exit(priv);
-
- if (priv->mac80211_registered) {
- ieee80211_unregister_hw(priv->hw);
- priv->mac80211_registered = 0;
- } else {
- iwl3945_down(priv);
- }
-
- /*
- * Make sure device is reset to low power before unloading driver.
- * This may be redundant with iwl_down(), but there are paths to
- * run iwl_down() without calling apm_ops.stop(), and there are
- * paths to avoid running iwl_down() at all before leaving driver.
- * This (inexpensive) call *makes sure* device is reset.
- */
- iwl_legacy_apm_stop(priv);
-
- /* make sure we flush any pending irq or
- * tasklet for the driver
- */
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl3945_synchronize_irq(priv);
-
- sysfs_remove_group(&pdev->dev.kobj, &iwl3945_attribute_group);
-
- cancel_delayed_work_sync(&priv->_3945.rfkill_poll);
-
- iwl3945_dealloc_ucode_pci(priv);
-
- if (priv->rxq.bd)
- iwl3945_rx_queue_free(priv, &priv->rxq);
- iwl3945_hw_txq_ctx_free(priv);
-
- iwl3945_unset_hw_params(priv);
-
- /*netif_stop_queue(dev); */
- flush_workqueue(priv->workqueue);
-
- /* ieee80211_unregister_hw calls iwl3945_mac_stop, which flushes
- * priv->workqueue... so we can't take down the workqueue
- * until now... */
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- iwl_legacy_free_traffic_mem(priv);
-
- free_irq(pdev->irq, priv);
- pci_disable_msi(pdev);
-
- pci_iounmap(pdev, priv->hw_base);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-
- iwl_legacy_free_channel_map(priv);
- iwl_legacy_free_geos(priv);
- kfree(priv->scan_cmd);
- if (priv->beacon_skb)
- dev_kfree_skb(priv->beacon_skb);
-
- ieee80211_free_hw(priv->hw);
-}
-
-
-/*****************************************************************************
- *
- * driver and module entry point
- *
- *****************************************************************************/
-
-static struct pci_driver iwl3945_driver = {
- .name = DRV_NAME,
- .id_table = iwl3945_hw_card_ids,
- .probe = iwl3945_pci_probe,
- .remove = __devexit_p(iwl3945_pci_remove),
- .driver.pm = IWL_LEGACY_PM_OPS,
-};
-
-static int __init iwl3945_init(void)
-{
-
- int ret;
- pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
- pr_info(DRV_COPYRIGHT "\n");
-
- ret = iwl3945_rate_control_register();
- if (ret) {
- pr_err("Unable to register rate control algorithm: %d\n", ret);
- return ret;
- }
-
- ret = pci_register_driver(&iwl3945_driver);
- if (ret) {
- pr_err("Unable to initialize PCI module\n");
- goto error_register;
- }
-
- return ret;
-
-error_register:
- iwl3945_rate_control_unregister();
- return ret;
-}
-
-static void __exit iwl3945_exit(void)
-{
- pci_unregister_driver(&iwl3945_driver);
- iwl3945_rate_control_unregister();
-}
-
-MODULE_FIRMWARE(IWL3945_MODULE_FIRMWARE(IWL3945_UCODE_API_MAX));
-
-module_param_named(antenna, iwl3945_mod_params.antenna, int, S_IRUGO);
-MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])");
-module_param_named(swcrypto, iwl3945_mod_params.sw_crypto, int, S_IRUGO);
-MODULE_PARM_DESC(swcrypto,
- "using software crypto (default 1 [software])");
-module_param_named(disable_hw_scan, iwl3945_mod_params.disable_hw_scan,
- int, S_IRUGO);
-MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 1)");
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-module_param_named(debug, iwlegacy_debug_level, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "debug output mask");
-#endif
-module_param_named(fw_restart, iwl3945_mod_params.restart_fw, int, S_IRUGO);
-MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
-
-module_exit(iwl3945_exit);
-module_init(iwl3945_init);
diff --git a/drivers/net/wireless/iwlegacy/iwl4965-base.c b/drivers/net/wireless/iwlegacy/iwl4965-base.c
deleted file mode 100644
index d2fba9e..0000000
--- a/drivers/net/wireless/iwlegacy/iwl4965-base.c
+++ /dev/null
@@ -1,3281 +0,0 @@
-/******************************************************************************
- *
- * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
- *
- * Portions of this file are derived from the ipw3945 project, as well
- * as portions of the ieee80211 subsystem header files.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * Intel Linux Wireless <ilw@linux.intel.com>
- * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
- *
- *****************************************************************************/
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/pci-aspm.h>
-#include <linux/slab.h>
-#include <linux/dma-mapping.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/firmware.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-
-#include <net/mac80211.h>
-
-#include <asm/div64.h>
-
-#define DRV_NAME "iwl4965"
-
-#include "iwl-eeprom.h"
-#include "iwl-dev.h"
-#include "iwl-core.h"
-#include "iwl-io.h"
-#include "iwl-helpers.h"
-#include "iwl-sta.h"
-#include "iwl-4965-calib.h"
-#include "iwl-4965.h"
-#include "iwl-4965-led.h"
-
-
-/******************************************************************************
- *
- * module boiler plate
- *
- ******************************************************************************/
-
-/*
- * module name, copyright, version, etc.
- */
-#define DRV_DESCRIPTION "Intel(R) Wireless WiFi 4965 driver for Linux"
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-#define VD "d"
-#else
-#define VD
-#endif
-
-#define DRV_VERSION IWLWIFI_VERSION VD
-
-
-MODULE_DESCRIPTION(DRV_DESCRIPTION);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("iwl4965");
-
-void iwl4965_update_chain_flags(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx;
-
- if (priv->cfg->ops->hcmd->set_rxon_chain) {
- for_each_context(priv, ctx) {
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- if (ctx->active.rx_chain != ctx->staging.rx_chain)
- iwl_legacy_commit_rxon(priv, ctx);
- }
- }
-}
-
-static void iwl4965_clear_free_frames(struct iwl_priv *priv)
-{
- struct list_head *element;
-
- IWL_DEBUG_INFO(priv, "%d frames on pre-allocated heap on clear.\n",
- priv->frames_count);
-
- while (!list_empty(&priv->free_frames)) {
- element = priv->free_frames.next;
- list_del(element);
- kfree(list_entry(element, struct iwl_frame, list));
- priv->frames_count--;
- }
-
- if (priv->frames_count) {
- IWL_WARN(priv, "%d frames still in use. Did we lose one?\n",
- priv->frames_count);
- priv->frames_count = 0;
- }
-}
-
-static struct iwl_frame *iwl4965_get_free_frame(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- struct list_head *element;
- if (list_empty(&priv->free_frames)) {
- frame = kzalloc(sizeof(*frame), GFP_KERNEL);
- if (!frame) {
- IWL_ERR(priv, "Could not allocate frame!\n");
- return NULL;
- }
-
- priv->frames_count++;
- return frame;
- }
-
- element = priv->free_frames.next;
- list_del(element);
- return list_entry(element, struct iwl_frame, list);
-}
-
-static void iwl4965_free_frame(struct iwl_priv *priv, struct iwl_frame *frame)
-{
- memset(frame, 0, sizeof(*frame));
- list_add(&frame->list, &priv->free_frames);
-}
-
-static u32 iwl4965_fill_beacon_frame(struct iwl_priv *priv,
- struct ieee80211_hdr *hdr,
- int left)
-{
- lockdep_assert_held(&priv->mutex);
-
- if (!priv->beacon_skb)
- return 0;
-
- if (priv->beacon_skb->len > left)
- return 0;
-
- memcpy(hdr, priv->beacon_skb->data, priv->beacon_skb->len);
-
- return priv->beacon_skb->len;
-}
-
-/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
-static void iwl4965_set_beacon_tim(struct iwl_priv *priv,
- struct iwl_tx_beacon_cmd *tx_beacon_cmd,
- u8 *beacon, u32 frame_size)
-{
- u16 tim_idx;
- struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
-
- /*
- * The index is relative to frame start but we start looking at the
- * variable-length part of the beacon.
- */
- tim_idx = mgmt->u.beacon.variable - beacon;
-
- /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
- while ((tim_idx < (frame_size - 2)) &&
- (beacon[tim_idx] != WLAN_EID_TIM))
- tim_idx += beacon[tim_idx+1] + 2;
-
- /* If TIM field was found, set variables */
- if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
- tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
- tx_beacon_cmd->tim_size = beacon[tim_idx+1];
- } else
- IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
-}
-
-static unsigned int iwl4965_hw_get_beacon_cmd(struct iwl_priv *priv,
- struct iwl_frame *frame)
-{
- struct iwl_tx_beacon_cmd *tx_beacon_cmd;
- u32 frame_size;
- u32 rate_flags;
- u32 rate;
- /*
- * We have to set up the TX command, the TX Beacon command, and the
- * beacon contents.
- */
-
- lockdep_assert_held(&priv->mutex);
-
- if (!priv->beacon_ctx) {
- IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
- return 0;
- }
-
- /* Initialize memory */
- tx_beacon_cmd = &frame->u.beacon;
- memset(tx_beacon_cmd, 0, sizeof(*tx_beacon_cmd));
-
- /* Set up TX beacon contents */
- frame_size = iwl4965_fill_beacon_frame(priv, tx_beacon_cmd->frame,
- sizeof(frame->u) - sizeof(*tx_beacon_cmd));
- if (WARN_ON_ONCE(frame_size > MAX_MPDU_SIZE))
- return 0;
- if (!frame_size)
- return 0;
-
- /* Set up TX command fields */
- tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
- tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
- tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
- tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
- TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
-
- /* Set up TX beacon command fields */
- iwl4965_set_beacon_tim(priv, tx_beacon_cmd, (u8 *)tx_beacon_cmd->frame,
- frame_size);
-
- /* Set up packet rate and flags */
- rate = iwl_legacy_get_lowest_plcp(priv, priv->beacon_ctx);
- priv->mgmt_tx_ant = iwl4965_toggle_tx_ant(priv, priv->mgmt_tx_ant,
- priv->hw_params.valid_tx_ant);
- rate_flags = iwl4965_ant_idx_to_flags(priv->mgmt_tx_ant);
- if ((rate >= IWL_FIRST_CCK_RATE) && (rate <= IWL_LAST_CCK_RATE))
- rate_flags |= RATE_MCS_CCK_MSK;
- tx_beacon_cmd->tx.rate_n_flags = iwl4965_hw_set_rate_n_flags(rate,
- rate_flags);
-
- return sizeof(*tx_beacon_cmd) + frame_size;
-}
-
-int iwl4965_send_beacon_cmd(struct iwl_priv *priv)
-{
- struct iwl_frame *frame;
- unsigned int frame_size;
- int rc;
-
- frame = iwl4965_get_free_frame(priv);
- if (!frame) {
- IWL_ERR(priv, "Could not obtain free frame buffer for beacon "
- "command.\n");
- return -ENOMEM;
- }
-
- frame_size = iwl4965_hw_get_beacon_cmd(priv, frame);
- if (!frame_size) {
- IWL_ERR(priv, "Error configuring the beacon command\n");
- iwl4965_free_frame(priv, frame);
- return -EINVAL;
- }
-
- rc = iwl_legacy_send_cmd_pdu(priv, REPLY_TX_BEACON, frame_size,
- &frame->u.cmd[0]);
-
- iwl4965_free_frame(priv, frame);
-
- return rc;
-}
-
-static inline dma_addr_t iwl4965_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
-
- dma_addr_t addr = get_unaligned_le32(&tb->lo);
- if (sizeof(dma_addr_t) > sizeof(u32))
- addr |=
- ((dma_addr_t)(le16_to_cpu(tb->hi_n_len) & 0xF) << 16) << 16;
-
- return addr;
-}
-
-static inline u16 iwl4965_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
-
- return le16_to_cpu(tb->hi_n_len) >> 4;
-}
-
-static inline void iwl4965_tfd_set_tb(struct iwl_tfd *tfd, u8 idx,
- dma_addr_t addr, u16 len)
-{
- struct iwl_tfd_tb *tb = &tfd->tbs[idx];
- u16 hi_n_len = len << 4;
-
- put_unaligned_le32(addr, &tb->lo);
- if (sizeof(dma_addr_t) > sizeof(u32))
- hi_n_len |= ((addr >> 16) >> 16) & 0xF;
-
- tb->hi_n_len = cpu_to_le16(hi_n_len);
-
- tfd->num_tbs = idx + 1;
-}
-
-static inline u8 iwl4965_tfd_get_num_tbs(struct iwl_tfd *tfd)
-{
- return tfd->num_tbs & 0x1f;
-}
-
-/**
- * iwl4965_hw_txq_free_tfd - Free all chunks referenced by TFD [txq->q.read_ptr]
- * @priv - driver private data
- * @txq - tx queue
- *
- * Does NOT advance any TFD circular buffer read/write indexes
- * Does NOT free the TFD itself (which is within circular buffer)
- */
-void iwl4965_hw_txq_free_tfd(struct iwl_priv *priv, struct iwl_tx_queue *txq)
-{
- struct iwl_tfd *tfd_tmp = (struct iwl_tfd *)txq->tfds;
- struct iwl_tfd *tfd;
- struct pci_dev *dev = priv->pci_dev;
- int index = txq->q.read_ptr;
- int i;
- int num_tbs;
-
- tfd = &tfd_tmp[index];
-
- /* Sanity check on number of chunks */
- num_tbs = iwl4965_tfd_get_num_tbs(tfd);
-
- if (num_tbs >= IWL_NUM_OF_TBS) {
- IWL_ERR(priv, "Too many chunks: %i\n", num_tbs);
- /* @todo issue fatal error, it is quite serious situation */
- return;
- }
-
- /* Unmap tx_cmd */
- if (num_tbs)
- pci_unmap_single(dev,
- dma_unmap_addr(&txq->meta[index], mapping),
- dma_unmap_len(&txq->meta[index], len),
- PCI_DMA_BIDIRECTIONAL);
-
- /* Unmap chunks, if any. */
- for (i = 1; i < num_tbs; i++)
- pci_unmap_single(dev, iwl4965_tfd_tb_get_addr(tfd, i),
- iwl4965_tfd_tb_get_len(tfd, i),
- PCI_DMA_TODEVICE);
-
- /* free SKB */
- if (txq->txb) {
- struct sk_buff *skb;
-
- skb = txq->txb[txq->q.read_ptr].skb;
-
- /* can be called from irqs-disabled context */
- if (skb) {
- dev_kfree_skb_any(skb);
- txq->txb[txq->q.read_ptr].skb = NULL;
- }
- }
-}
-
-int iwl4965_hw_txq_attach_buf_to_tfd(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- dma_addr_t addr, u16 len,
- u8 reset, u8 pad)
-{
- struct iwl_queue *q;
- struct iwl_tfd *tfd, *tfd_tmp;
- u32 num_tbs;
-
- q = &txq->q;
- tfd_tmp = (struct iwl_tfd *)txq->tfds;
- tfd = &tfd_tmp[q->write_ptr];
-
- if (reset)
- memset(tfd, 0, sizeof(*tfd));
-
- num_tbs = iwl4965_tfd_get_num_tbs(tfd);
-
- /* Each TFD can point to a maximum 20 Tx buffers */
- if (num_tbs >= IWL_NUM_OF_TBS) {
- IWL_ERR(priv, "Error can not send more than %d chunks\n",
- IWL_NUM_OF_TBS);
- return -EINVAL;
- }
-
- BUG_ON(addr & ~DMA_BIT_MASK(36));
- if (unlikely(addr & ~IWL_TX_DMA_MASK))
- IWL_ERR(priv, "Unaligned address = %llx\n",
- (unsigned long long)addr);
-
- iwl4965_tfd_set_tb(tfd, num_tbs, addr, len);
-
- return 0;
-}
-
-/*
- * Tell nic where to find circular buffer of Tx Frame Descriptors for
- * given Tx queue, and enable the DMA channel used for that queue.
- *
- * 4965 supports up to 16 Tx queues in DRAM, mapped to up to 8 Tx DMA
- * channels supported in hardware.
- */
-int iwl4965_hw_tx_queue_init(struct iwl_priv *priv,
- struct iwl_tx_queue *txq)
-{
- int txq_id = txq->q.id;
-
- /* Circular buffer (TFD queue in DRAM) physical base address */
- iwl_legacy_write_direct32(priv, FH_MEM_CBBC_QUEUE(txq_id),
- txq->q.dma_addr >> 8);
-
- return 0;
-}
-
-/******************************************************************************
- *
- * Generic RX handler implementations
- *
- ******************************************************************************/
-static void iwl4965_rx_reply_alive(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl_alive_resp *palive;
- struct delayed_work *pwork;
-
- palive = &pkt->u.alive_frame;
-
- IWL_DEBUG_INFO(priv, "Alive ucode status 0x%08X revision "
- "0x%01X 0x%01X\n",
- palive->is_valid, palive->ver_type,
- palive->ver_subtype);
-
- if (palive->ver_subtype == INITIALIZE_SUBTYPE) {
- IWL_DEBUG_INFO(priv, "Initialization Alive received.\n");
- memcpy(&priv->card_alive_init,
- &pkt->u.alive_frame,
- sizeof(struct iwl_init_alive_resp));
- pwork = &priv->init_alive_start;
- } else {
- IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
- memcpy(&priv->card_alive, &pkt->u.alive_frame,
- sizeof(struct iwl_alive_resp));
- pwork = &priv->alive_start;
- }
-
- /* We delay the ALIVE response by 5ms to
- * give the HW RF Kill time to activate... */
- if (palive->is_valid == UCODE_VALID_OK)
- queue_delayed_work(priv->workqueue, pwork,
- msecs_to_jiffies(5));
- else
- IWL_WARN(priv, "uCode did not respond OK.\n");
-}
-
-/**
- * iwl4965_bg_statistics_periodic - Timer callback to queue statistics
- *
- * This callback is provided in order to send a statistics request.
- *
- * This timer function is continually reset to execute within
- * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
- * was received. We need to ensure we receive the statistics in order
- * to update the temperature used for calibrating the TXPOWER.
- */
-static void iwl4965_bg_statistics_periodic(unsigned long data)
-{
- struct iwl_priv *priv = (struct iwl_priv *)data;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- /* dont send host command if rf-kill is on */
- if (!iwl_legacy_is_ready_rf(priv))
- return;
-
- iwl_legacy_send_statistics_request(priv, CMD_ASYNC, false);
-}
-
-static void iwl4965_rx_beacon_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- struct iwl4965_beacon_notif *beacon =
- (struct iwl4965_beacon_notif *)pkt->u.raw;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- u8 rate = iwl4965_hw_get_rate(beacon->beacon_notify_hdr.rate_n_flags);
-
- IWL_DEBUG_RX(priv, "beacon status %x retries %d iss %d "
- "tsf %d %d rate %d\n",
- le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK,
- beacon->beacon_notify_hdr.failure_frame,
- le32_to_cpu(beacon->ibss_mgr_status),
- le32_to_cpu(beacon->high_tsf),
- le32_to_cpu(beacon->low_tsf), rate);
-#endif
-
- priv->ibss_manager = le32_to_cpu(beacon->ibss_mgr_status);
-}
-
-static void iwl4965_perform_ct_kill_task(struct iwl_priv *priv)
-{
- unsigned long flags;
-
- IWL_DEBUG_POWER(priv, "Stop all queues\n");
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- iwl_read32(priv, CSR_UCODE_DRV_GP1);
-
- spin_lock_irqsave(&priv->reg_lock, flags);
- if (!iwl_grab_nic_access(priv))
- iwl_release_nic_access(priv);
- spin_unlock_irqrestore(&priv->reg_lock, flags);
-}
-
-/* Handle notification from uCode that card's power state is changing
- * due to software, hardware, or critical temperature RFKILL */
-static void iwl4965_rx_card_state_notif(struct iwl_priv *priv,
- struct iwl_rx_mem_buffer *rxb)
-{
- struct iwl_rx_packet *pkt = rxb_addr(rxb);
- u32 flags = le32_to_cpu(pkt->u.card_state_notif.flags);
- unsigned long status = priv->status;
-
- IWL_DEBUG_RF_KILL(priv, "Card state received: HW:%s SW:%s CT:%s\n",
- (flags & HW_CARD_DISABLED) ? "Kill" : "On",
- (flags & SW_CARD_DISABLED) ? "Kill" : "On",
- (flags & CT_CARD_DISABLED) ?
- "Reached" : "Not reached");
-
- if (flags & (SW_CARD_DISABLED | HW_CARD_DISABLED |
- CT_CARD_DISABLED)) {
-
- iwl_write32(priv, CSR_UCODE_DRV_GP1_SET,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- iwl_legacy_write_direct32(priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
-
- if (!(flags & RXON_CARD_DISABLED)) {
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
- iwl_legacy_write_direct32(priv, HBUS_TARG_MBX_C,
- HBUS_TARG_MBX_C_REG_BIT_CMD_BLOCKED);
- }
- }
-
- if (flags & CT_CARD_DISABLED)
- iwl4965_perform_ct_kill_task(priv);
-
- if (flags & HW_CARD_DISABLED)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
-
- if (!(flags & RXON_CARD_DISABLED))
- iwl_legacy_scan_cancel(priv);
-
- if ((test_bit(STATUS_RF_KILL_HW, &status) !=
- test_bit(STATUS_RF_KILL_HW, &priv->status)))
- wiphy_rfkill_set_hw_state(priv->hw->wiphy,
- test_bit(STATUS_RF_KILL_HW, &priv->status));
- else
- wake_up(&priv->wait_command_queue);
-}
-
-/**
- * iwl4965_setup_rx_handlers - Initialize Rx handler callbacks
- *
- * Setup the RX handlers for each of the reply types sent from the uCode
- * to the host.
- *
- * This function chains into the hardware specific files for them to setup
- * any hardware specific handlers as well.
- */
-static void iwl4965_setup_rx_handlers(struct iwl_priv *priv)
-{
- priv->rx_handlers[REPLY_ALIVE] = iwl4965_rx_reply_alive;
- priv->rx_handlers[REPLY_ERROR] = iwl_legacy_rx_reply_error;
- priv->rx_handlers[CHANNEL_SWITCH_NOTIFICATION] = iwl_legacy_rx_csa;
- priv->rx_handlers[SPECTRUM_MEASURE_NOTIFICATION] =
- iwl_legacy_rx_spectrum_measure_notif;
- priv->rx_handlers[PM_SLEEP_NOTIFICATION] = iwl_legacy_rx_pm_sleep_notif;
- priv->rx_handlers[PM_DEBUG_STATISTIC_NOTIFIC] =
- iwl_legacy_rx_pm_debug_statistics_notif;
- priv->rx_handlers[BEACON_NOTIFICATION] = iwl4965_rx_beacon_notif;
-
- /*
- * The same handler is used for both the REPLY to a discrete
- * statistics request from the host as well as for the periodic
- * statistics notifications (after received beacons) from the uCode.
- */
- priv->rx_handlers[REPLY_STATISTICS_CMD] = iwl4965_reply_statistics;
- priv->rx_handlers[STATISTICS_NOTIFICATION] = iwl4965_rx_statistics;
-
- iwl_legacy_setup_rx_scan_handlers(priv);
-
- /* status change handler */
- priv->rx_handlers[CARD_STATE_NOTIFICATION] =
- iwl4965_rx_card_state_notif;
-
- priv->rx_handlers[MISSED_BEACONS_NOTIFICATION] =
- iwl4965_rx_missed_beacon_notif;
- /* Rx handlers */
- priv->rx_handlers[REPLY_RX_PHY_CMD] = iwl4965_rx_reply_rx_phy;
- priv->rx_handlers[REPLY_RX_MPDU_CMD] = iwl4965_rx_reply_rx;
- /* block ack */
- priv->rx_handlers[REPLY_COMPRESSED_BA] = iwl4965_rx_reply_compressed_ba;
- /* Set up hardware specific Rx handlers */
- priv->cfg->ops->lib->rx_handler_setup(priv);
-}
-
-/**
- * iwl4965_rx_handle - Main entry function for receiving responses from uCode
- *
- * Uses the priv->rx_handlers callback function array to invoke
- * the appropriate handlers, including command responses,
- * frame-received notifications, and other notifications.
- */
-void iwl4965_rx_handle(struct iwl_priv *priv)
-{
- struct iwl_rx_mem_buffer *rxb;
- struct iwl_rx_packet *pkt;
- struct iwl_rx_queue *rxq = &priv->rxq;
- u32 r, i;
- int reclaim;
- unsigned long flags;
- u8 fill_rx = 0;
- u32 count = 8;
- int total_empty;
-
- /* uCode's read index (stored in shared DRAM) indicates the last Rx
- * buffer that the driver may process (last buffer filled by ucode). */
- r = le16_to_cpu(rxq->rb_stts->closed_rb_num) & 0x0FFF;
- i = rxq->read;
-
- /* Rx interrupt, but nothing sent from uCode */
- if (i == r)
- IWL_DEBUG_RX(priv, "r = %d, i = %d\n", r, i);
-
- /* calculate total frames need to be restock after handling RX */
- total_empty = r - rxq->write_actual;
- if (total_empty < 0)
- total_empty += RX_QUEUE_SIZE;
-
- if (total_empty > (RX_QUEUE_SIZE / 2))
- fill_rx = 1;
-
- while (i != r) {
- int len;
-
- rxb = rxq->queue[i];
-
- /* If an RXB doesn't have a Rx queue slot associated with it,
- * then a bug has been introduced in the queue refilling
- * routines -- catch it here */
- BUG_ON(rxb == NULL);
-
- rxq->queue[i] = NULL;
-
- pci_unmap_page(priv->pci_dev, rxb->page_dma,
- PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- pkt = rxb_addr(rxb);
-
- len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
- len += sizeof(u32); /* account for status word */
- trace_iwlwifi_legacy_dev_rx(priv, pkt, len);
-
- /* Reclaim a command buffer only if this packet is a response
- * to a (driver-originated) command.
- * If the packet (e.g. Rx frame) originated from uCode,
- * there is no command buffer to reclaim.
- * Ucode should set SEQ_RX_FRAME bit if ucode-originated,
- * but apparently a few don't get set; catch them here. */
- reclaim = !(pkt->hdr.sequence & SEQ_RX_FRAME) &&
- (pkt->hdr.cmd != REPLY_RX_PHY_CMD) &&
- (pkt->hdr.cmd != REPLY_RX) &&
- (pkt->hdr.cmd != REPLY_RX_MPDU_CMD) &&
- (pkt->hdr.cmd != REPLY_COMPRESSED_BA) &&
- (pkt->hdr.cmd != STATISTICS_NOTIFICATION) &&
- (pkt->hdr.cmd != REPLY_TX);
-
- /* Based on type of command response or notification,
- * handle those that need handling via function in
- * rx_handlers table. See iwl4965_setup_rx_handlers() */
- if (priv->rx_handlers[pkt->hdr.cmd]) {
- IWL_DEBUG_RX(priv, "r = %d, i = %d, %s, 0x%02x\n", r,
- i, iwl_legacy_get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- priv->isr_stats.rx_handlers[pkt->hdr.cmd]++;
- priv->rx_handlers[pkt->hdr.cmd] (priv, rxb);
- } else {
- /* No handling needed */
- IWL_DEBUG_RX(priv,
- "r %d i %d No handler needed for %s, 0x%02x\n",
- r, i, iwl_legacy_get_cmd_string(pkt->hdr.cmd),
- pkt->hdr.cmd);
- }
-
- /*
- * XXX: After here, we should always check rxb->page
- * against NULL before touching it or its virtual
- * memory (pkt). Because some rx_handler might have
- * already taken or freed the pages.
- */
-
- if (reclaim) {
- /* Invoke any callbacks, transfer the buffer to caller,
- * and fire off the (possibly) blocking iwl_legacy_send_cmd()
- * as we reclaim the driver command queue */
- if (rxb->page)
- iwl_legacy_tx_cmd_complete(priv, rxb);
- else
- IWL_WARN(priv, "Claim null rxb?\n");
- }
-
- /* Reuse the page if possible. For notification packets and
- * SKBs that fail to Rx correctly, add them back into the
- * rx_free list for reuse later. */
- spin_lock_irqsave(&rxq->lock, flags);
- if (rxb->page != NULL) {
- rxb->page_dma = pci_map_page(priv->pci_dev, rxb->page,
- 0, PAGE_SIZE << priv->hw_params.rx_page_order,
- PCI_DMA_FROMDEVICE);
- list_add_tail(&rxb->list, &rxq->rx_free);
- rxq->free_count++;
- } else
- list_add_tail(&rxb->list, &rxq->rx_used);
-
- spin_unlock_irqrestore(&rxq->lock, flags);
-
- i = (i + 1) & RX_QUEUE_MASK;
- /* If there are a lot of unused frames,
- * restock the Rx queue so ucode wont assert. */
- if (fill_rx) {
- count++;
- if (count >= 8) {
- rxq->read = i;
- iwl4965_rx_replenish_now(priv);
- count = 0;
- }
- }
- }
-
- /* Backtrack one entry */
- rxq->read = i;
- if (fill_rx)
- iwl4965_rx_replenish_now(priv);
- else
- iwl4965_rx_queue_restock(priv);
-}
-
-/* call this function to flush any scheduled tasklet */
-static inline void iwl4965_synchronize_irq(struct iwl_priv *priv)
-{
- /* wait to make sure we flush pending tasklet*/
- synchronize_irq(priv->pci_dev->irq);
- tasklet_kill(&priv->irq_tasklet);
-}
-
-static void iwl4965_irq_tasklet(struct iwl_priv *priv)
-{
- u32 inta, handled = 0;
- u32 inta_fh;
- unsigned long flags;
- u32 i;
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- u32 inta_mask;
-#endif
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Ack/clear/reset pending uCode interrupts.
- * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS,
- * and will clear only when CSR_FH_INT_STATUS gets cleared. */
- inta = iwl_read32(priv, CSR_INT);
- iwl_write32(priv, CSR_INT, inta);
-
- /* Ack/clear/reset pending flow-handler (DMA) interrupts.
- * Any new interrupts that happen after this, either while we're
- * in this tasklet, or later, will show up in next ISR/tasklet. */
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- iwl_write32(priv, CSR_FH_INT_STATUS, inta_fh);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & IWL_DL_ISR) {
- /* just for debug */
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- IWL_DEBUG_ISR(priv, "inta 0x%08x, enabled 0x%08x, fh 0x%08x\n",
- inta, inta_mask, inta_fh);
- }
-#endif
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- /* Since CSR_INT and CSR_FH_INT_STATUS reads and clears are not
- * atomic, make sure that inta covers all the interrupts that
- * we've discovered, even if FH interrupt came in just after
- * reading CSR_INT. */
- if (inta_fh & CSR49_FH_INT_RX_MASK)
- inta |= CSR_INT_BIT_FH_RX;
- if (inta_fh & CSR49_FH_INT_TX_MASK)
- inta |= CSR_INT_BIT_FH_TX;
-
- /* Now service all interrupt bits discovered above. */
- if (inta & CSR_INT_BIT_HW_ERR) {
- IWL_ERR(priv, "Hardware error detected. Restarting.\n");
-
- /* Tell the device to stop sending interrupts */
- iwl_legacy_disable_interrupts(priv);
-
- priv->isr_stats.hw++;
- iwl_legacy_irq_handle_error(priv);
-
- handled |= CSR_INT_BIT_HW_ERR;
-
- return;
- }
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) {
- /* NIC fires this, but we don't use it, redundant with WAKEUP */
- if (inta & CSR_INT_BIT_SCD) {
- IWL_DEBUG_ISR(priv, "Scheduler finished to transmit "
- "the frame/frames.\n");
- priv->isr_stats.sch++;
- }
-
- /* Alive notification via Rx interrupt will do the real work */
- if (inta & CSR_INT_BIT_ALIVE) {
- IWL_DEBUG_ISR(priv, "Alive interrupt\n");
- priv->isr_stats.alive++;
- }
- }
-#endif
- /* Safely ignore these bits for debug checks below */
- inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE);
-
- /* HW RF KILL switch toggled */
- if (inta & CSR_INT_BIT_RF_KILL) {
- int hw_rf_kill = 0;
- if (!(iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW))
- hw_rf_kill = 1;
-
- IWL_WARN(priv, "RF_KILL bit toggled to %s.\n",
- hw_rf_kill ? "disable radio" : "enable radio");
-
- priv->isr_stats.rfkill++;
-
- /* driver only loads ucode once setting the interface up.
- * the driver allows loading the ucode even if the radio
- * is killed. Hence update the killswitch state here. The
- * rfkill handler will care about restarting if needed.
- */
- if (!test_bit(STATUS_ALIVE, &priv->status)) {
- if (hw_rf_kill)
- set_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- wiphy_rfkill_set_hw_state(priv->hw->wiphy, hw_rf_kill);
- }
-
- handled |= CSR_INT_BIT_RF_KILL;
- }
-
- /* Chip got too hot and stopped itself */
- if (inta & CSR_INT_BIT_CT_KILL) {
- IWL_ERR(priv, "Microcode CT kill error detected.\n");
- priv->isr_stats.ctkill++;
- handled |= CSR_INT_BIT_CT_KILL;
- }
-
- /* Error detected by uCode */
- if (inta & CSR_INT_BIT_SW_ERR) {
- IWL_ERR(priv, "Microcode SW error detected. "
- " Restarting 0x%X.\n", inta);
- priv->isr_stats.sw++;
- iwl_legacy_irq_handle_error(priv);
- handled |= CSR_INT_BIT_SW_ERR;
- }
-
- /*
- * uCode wakes up after power-down sleep.
- * Tell device about any new tx or host commands enqueued,
- * and about any Rx buffers made available while asleep.
- */
- if (inta & CSR_INT_BIT_WAKEUP) {
- IWL_DEBUG_ISR(priv, "Wakeup interrupt\n");
- iwl_legacy_rx_queue_update_write_ptr(priv, &priv->rxq);
- for (i = 0; i < priv->hw_params.max_txq_num; i++)
- iwl_legacy_txq_update_write_ptr(priv, &priv->txq[i]);
- priv->isr_stats.wakeup++;
- handled |= CSR_INT_BIT_WAKEUP;
- }
-
- /* All uCode command responses, including Tx command responses,
- * Rx "responses" (frame-received notification), and other
- * notifications from uCode come through here*/
- if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
- iwl4965_rx_handle(priv);
- priv->isr_stats.rx++;
- handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
- }
-
- /* This "Tx" DMA channel is used only for loading uCode */
- if (inta & CSR_INT_BIT_FH_TX) {
- IWL_DEBUG_ISR(priv, "uCode load interrupt\n");
- priv->isr_stats.tx++;
- handled |= CSR_INT_BIT_FH_TX;
- /* Wake up uCode load routine, now that load is complete */
- priv->ucode_write_complete = 1;
- wake_up(&priv->wait_command_queue);
- }
-
- if (inta & ~handled) {
- IWL_ERR(priv, "Unhandled INTA bits 0x%08x\n", inta & ~handled);
- priv->isr_stats.unhandled++;
- }
-
- if (inta & ~(priv->inta_mask)) {
- IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
- inta & ~priv->inta_mask);
- IWL_WARN(priv, " with FH_INT = 0x%08x\n", inta_fh);
- }
-
- /* Re-enable all interrupts */
- /* only Re-enable if disabled by irq */
- if (test_bit(STATUS_INT_ENABLED, &priv->status))
- iwl_legacy_enable_interrupts(priv);
- /* Re-enable RF_KILL if it occurred */
- else if (handled & CSR_INT_BIT_RF_KILL)
- iwl_legacy_enable_rfkill_int(priv);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- if (iwl_legacy_get_debug_level(priv) & (IWL_DL_ISR)) {
- inta = iwl_read32(priv, CSR_INT);
- inta_mask = iwl_read32(priv, CSR_INT_MASK);
- inta_fh = iwl_read32(priv, CSR_FH_INT_STATUS);
- IWL_DEBUG_ISR(priv,
- "End inta 0x%08x, enabled 0x%08x, fh 0x%08x, "
- "flags 0x%08lx\n", inta, inta_mask, inta_fh, flags);
- }
-#endif
-}
-
-/*****************************************************************************
- *
- * sysfs attributes
- *
- *****************************************************************************/
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-
-/*
- * The following adds a new attribute to the sysfs representation
- * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
- * used for controlling the debug level.
- *
- * See the level definitions in iwl for details.
- *
- * The debug_level being managed using sysfs below is a per device debug
- * level that is used instead of the global debug level if it (the per
- * device debug level) is set.
- */
-static ssize_t iwl4965_show_debug_level(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- return sprintf(buf, "0x%08X\n", iwl_legacy_get_debug_level(priv));
-}
-static ssize_t iwl4965_store_debug_level(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 0, &val);
- if (ret)
- IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
- else {
- priv->debug_level = val;
- if (iwl_legacy_alloc_traffic_mem(priv))
- IWL_ERR(priv,
- "Not enough memory to generate traffic log\n");
- }
- return strnlen(buf, count);
-}
-
-static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
- iwl4965_show_debug_level, iwl4965_store_debug_level);
-
-
-#endif /* CONFIG_IWLWIFI_LEGACY_DEBUG */
-
-
-static ssize_t iwl4965_show_temperature(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_legacy_is_alive(priv))
- return -EAGAIN;
-
- return sprintf(buf, "%d\n", priv->temperature);
-}
-
-static DEVICE_ATTR(temperature, S_IRUGO, iwl4965_show_temperature, NULL);
-
-static ssize_t iwl4965_show_tx_power(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
-
- if (!iwl_legacy_is_ready_rf(priv))
- return sprintf(buf, "off\n");
- else
- return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
-}
-
-static ssize_t iwl4965_store_tx_power(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct iwl_priv *priv = dev_get_drvdata(d);
- unsigned long val;
- int ret;
-
- ret = strict_strtoul(buf, 10, &val);
- if (ret)
- IWL_INFO(priv, "%s is not in decimal form.\n", buf);
- else {
- ret = iwl_legacy_set_tx_power(priv, val, false);
- if (ret)
- IWL_ERR(priv, "failed setting tx power (0x%d).\n",
- ret);
- else
- ret = count;
- }
- return ret;
-}
-
-static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO,
- iwl4965_show_tx_power, iwl4965_store_tx_power);
-
-static struct attribute *iwl_sysfs_entries[] = {
- &dev_attr_temperature.attr,
- &dev_attr_tx_power.attr,
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
- &dev_attr_debug_level.attr,
-#endif
- NULL
-};
-
-static struct attribute_group iwl_attribute_group = {
- .name = NULL, /* put in device directory */
- .attrs = iwl_sysfs_entries,
-};
-
-/******************************************************************************
- *
- * uCode download functions
- *
- ******************************************************************************/
-
-static void iwl4965_dealloc_ucode_pci(struct iwl_priv *priv)
-{
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_code);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_init_data);
- iwl_legacy_free_fw_desc(priv->pci_dev, &priv->ucode_boot);
-}
-
-static void iwl4965_nic_start(struct iwl_priv *priv)
-{
- /* Remove all resets to allow NIC to operate */
- iwl_write32(priv, CSR_RESET, 0);
-}
-
-static void iwl4965_ucode_callback(const struct firmware *ucode_raw,
- void *context);
-static int iwl4965_mac_setup_register(struct iwl_priv *priv,
- u32 max_probe_length);
-
-static int __must_check iwl4965_request_firmware(struct iwl_priv *priv, bool first)
-{
- const char *name_pre = priv->cfg->fw_name_pre;
- char tag[8];
-
- if (first) {
- priv->fw_index = priv->cfg->ucode_api_max;
- sprintf(tag, "%d", priv->fw_index);
- } else {
- priv->fw_index--;
- sprintf(tag, "%d", priv->fw_index);
- }
-
- if (priv->fw_index < priv->cfg->ucode_api_min) {
- IWL_ERR(priv, "no suitable firmware found!\n");
- return -ENOENT;
- }
-
- sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
-
- IWL_DEBUG_INFO(priv, "attempting to load firmware '%s'\n",
- priv->firmware_name);
-
- return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
- &priv->pci_dev->dev, GFP_KERNEL, priv,
- iwl4965_ucode_callback);
-}
-
-struct iwl4965_firmware_pieces {
- const void *inst, *data, *init, *init_data, *boot;
- size_t inst_size, data_size, init_size, init_data_size, boot_size;
-};
-
-static int iwl4965_load_firmware(struct iwl_priv *priv,
- const struct firmware *ucode_raw,
- struct iwl4965_firmware_pieces *pieces)
-{
- struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
- u32 api_ver, hdr_size;
- const u8 *src;
-
- priv->ucode_ver = le32_to_cpu(ucode->ver);
- api_ver = IWL_UCODE_API(priv->ucode_ver);
-
- switch (api_ver) {
- default:
- case 0:
- case 1:
- case 2:
- hdr_size = 24;
- if (ucode_raw->size < hdr_size) {
- IWL_ERR(priv, "File size too small!\n");
- return -EINVAL;
- }
- pieces->inst_size = le32_to_cpu(ucode->v1.inst_size);
- pieces->data_size = le32_to_cpu(ucode->v1.data_size);
- pieces->init_size = le32_to_cpu(ucode->v1.init_size);
- pieces->init_data_size =
- le32_to_cpu(ucode->v1.init_data_size);
- pieces->boot_size = le32_to_cpu(ucode->v1.boot_size);
- src = ucode->v1.data;
- break;
- }
-
- /* Verify size of file vs. image size info in file's header */
- if (ucode_raw->size != hdr_size + pieces->inst_size +
- pieces->data_size + pieces->init_size +
- pieces->init_data_size + pieces->boot_size) {
-
- IWL_ERR(priv,
- "uCode file size %d does not match expected size\n",
- (int)ucode_raw->size);
- return -EINVAL;
- }
-
- pieces->inst = src;
- src += pieces->inst_size;
- pieces->data = src;
- src += pieces->data_size;
- pieces->init = src;
- src += pieces->init_size;
- pieces->init_data = src;
- src += pieces->init_data_size;
- pieces->boot = src;
- src += pieces->boot_size;
-
- return 0;
-}
-
-/**
- * iwl4965_ucode_callback - callback when firmware was loaded
- *
- * If loaded successfully, copies the firmware into buffers
- * for the card to fetch (via DMA).
- */
-static void
-iwl4965_ucode_callback(const struct firmware *ucode_raw, void *context)
-{
- struct iwl_priv *priv = context;
- struct iwl_ucode_header *ucode;
- int err;
- struct iwl4965_firmware_pieces pieces;
- const unsigned int api_max = priv->cfg->ucode_api_max;
- const unsigned int api_min = priv->cfg->ucode_api_min;
- u32 api_ver;
-
- u32 max_probe_length = 200;
- u32 standard_phy_calibration_size =
- IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
-
- memset(&pieces, 0, sizeof(pieces));
-
- if (!ucode_raw) {
- if (priv->fw_index <= priv->cfg->ucode_api_max)
- IWL_ERR(priv,
- "request for firmware file '%s' failed.\n",
- priv->firmware_name);
- goto try_again;
- }
-
- IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
- priv->firmware_name, ucode_raw->size);
-
- /* Make sure that we got at least the API version number */
- if (ucode_raw->size < 4) {
- IWL_ERR(priv, "File size way too small!\n");
- goto try_again;
- }
-
- /* Data from ucode file: header followed by uCode images */
- ucode = (struct iwl_ucode_header *)ucode_raw->data;
-
- err = iwl4965_load_firmware(priv, ucode_raw, &pieces);
-
- if (err)
- goto try_again;
-
- api_ver = IWL_UCODE_API(priv->ucode_ver);
-
- /*
- * api_ver should match the api version forming part of the
- * firmware filename ... but we don't check for that and only rely
- * on the API version read from firmware header from here on forward
- */
- if (api_ver < api_min || api_ver > api_max) {
- IWL_ERR(priv,
- "Driver unable to support your firmware API. "
- "Driver supports v%u, firmware is v%u.\n",
- api_max, api_ver);
- goto try_again;
- }
-
- if (api_ver != api_max)
- IWL_ERR(priv,
- "Firmware has old API version. Expected v%u, "
- "got v%u. New firmware can be obtained "
- "from http://www.intellinuxwireless.org.\n",
- api_max, api_ver);
-
- IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u\n",
- IWL_UCODE_MAJOR(priv->ucode_ver),
- IWL_UCODE_MINOR(priv->ucode_ver),
- IWL_UCODE_API(priv->ucode_ver),
- IWL_UCODE_SERIAL(priv->ucode_ver));
-
- snprintf(priv->hw->wiphy->fw_version,
- sizeof(priv->hw->wiphy->fw_version),
- "%u.%u.%u.%u",
- IWL_UCODE_MAJOR(priv->ucode_ver),
- IWL_UCODE_MINOR(priv->ucode_ver),
- IWL_UCODE_API(priv->ucode_ver),
- IWL_UCODE_SERIAL(priv->ucode_ver));
-
- /*
- * For any of the failures below (before allocating pci memory)
- * we will try to load a version with a smaller API -- maybe the
- * user just got a corrupted version of the latest API.
- */
-
- IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
- priv->ucode_ver);
- IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
- pieces.inst_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
- pieces.data_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
- pieces.init_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
- pieces.init_data_size);
- IWL_DEBUG_INFO(priv, "f/w package hdr boot inst size = %Zd\n",
- pieces.boot_size);
-
- /* Verify that uCode images will fit in card's SRAM */
- if (pieces.inst_size > priv->hw_params.max_inst_size) {
- IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
- pieces.inst_size);
- goto try_again;
- }
-
- if (pieces.data_size > priv->hw_params.max_data_size) {
- IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
- pieces.data_size);
- goto try_again;
- }
-
- if (pieces.init_size > priv->hw_params.max_inst_size) {
- IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
- pieces.init_size);
- goto try_again;
- }
-
- if (pieces.init_data_size > priv->hw_params.max_data_size) {
- IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
- pieces.init_data_size);
- goto try_again;
- }
-
- if (pieces.boot_size > priv->hw_params.max_bsm_size) {
- IWL_ERR(priv, "uCode boot instr len %Zd too large to fit in\n",
- pieces.boot_size);
- goto try_again;
- }
-
- /* Allocate ucode buffers for card's bus-master loading ... */
-
- /* Runtime instructions and 2 copies of data:
- * 1) unmodified from disk
- * 2) backup cache for save/restore during power-downs */
- priv->ucode_code.len = pieces.inst_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_code);
-
- priv->ucode_data.len = pieces.data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data);
-
- priv->ucode_data_backup.len = pieces.data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_data_backup);
-
- if (!priv->ucode_code.v_addr || !priv->ucode_data.v_addr ||
- !priv->ucode_data_backup.v_addr)
- goto err_pci_alloc;
-
- /* Initialization instructions and data */
- if (pieces.init_size && pieces.init_data_size) {
- priv->ucode_init.len = pieces.init_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init);
-
- priv->ucode_init_data.len = pieces.init_data_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_init_data);
-
- if (!priv->ucode_init.v_addr || !priv->ucode_init_data.v_addr)
- goto err_pci_alloc;
- }
-
- /* Bootstrap (instructions only, no data) */
- if (pieces.boot_size) {
- priv->ucode_boot.len = pieces.boot_size;
- iwl_legacy_alloc_fw_desc(priv->pci_dev, &priv->ucode_boot);
-
- if (!priv->ucode_boot.v_addr)
- goto err_pci_alloc;
- }
-
- /* Now that we can no longer fail, copy information */
-
- priv->sta_key_max_num = STA_KEY_MAX_NUM;
-
- /* Copy images into buffers for card's bus-master reads ... */
-
- /* Runtime instructions (first block of data in file) */
- IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode instr len %Zd\n",
- pieces.inst_size);
- memcpy(priv->ucode_code.v_addr, pieces.inst, pieces.inst_size);
-
- IWL_DEBUG_INFO(priv, "uCode instr buf vaddr = 0x%p, paddr = 0x%08x\n",
- priv->ucode_code.v_addr, (u32)priv->ucode_code.p_addr);
-
- /*
- * Runtime data
- * NOTE: Copy into backup buffer will be done in iwl_up()
- */
- IWL_DEBUG_INFO(priv, "Copying (but not loading) uCode data len %Zd\n",
- pieces.data_size);
- memcpy(priv->ucode_data.v_addr, pieces.data, pieces.data_size);
- memcpy(priv->ucode_data_backup.v_addr, pieces.data, pieces.data_size);
-
- /* Initialization instructions */
- if (pieces.init_size) {
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) init instr len %Zd\n",
- pieces.init_size);
- memcpy(priv->ucode_init.v_addr, pieces.init, pieces.init_size);
- }
-
- /* Initialization data */
- if (pieces.init_data_size) {
- IWL_DEBUG_INFO(priv,
- "Copying (but not loading) init data len %Zd\n",
- pieces.init_data_size);
- memcpy(priv->ucode_init_data.v_addr, pieces.init_data,
- pieces.init_data_size);
- }
-
- /* Bootstrap instructions */
- IWL_DEBUG_INFO(priv, "Copying (but not loading) boot instr len %Zd\n",
- pieces.boot_size);
- memcpy(priv->ucode_boot.v_addr, pieces.boot, pieces.boot_size);
-
- /*
- * figure out the offset of chain noise reset and gain commands
- * base on the size of standard phy calibration commands table size
- */
- priv->_4965.phy_calib_chain_noise_reset_cmd =
- standard_phy_calibration_size;
- priv->_4965.phy_calib_chain_noise_gain_cmd =
- standard_phy_calibration_size + 1;
-
- /**************************************************
- * This is still part of probe() in a sense...
- *
- * 9. Setup and register with mac80211 and debugfs
- **************************************************/
- err = iwl4965_mac_setup_register(priv, max_probe_length);
- if (err)
- goto out_unbind;
-
- err = iwl_legacy_dbgfs_register(priv, DRV_NAME);
- if (err)
- IWL_ERR(priv,
- "failed to create debugfs files. Ignoring error: %d\n", err);
-
- err = sysfs_create_group(&priv->pci_dev->dev.kobj,
- &iwl_attribute_group);
- if (err) {
- IWL_ERR(priv, "failed to create sysfs device attributes\n");
- goto out_unbind;
- }
-
- /* We have our copies now, allow OS release its copies */
- release_firmware(ucode_raw);
- complete(&priv->_4965.firmware_loading_complete);
- return;
-
- try_again:
- /* try next, if any */
- if (iwl4965_request_firmware(priv, false))
- goto out_unbind;
- release_firmware(ucode_raw);
- return;
-
- err_pci_alloc:
- IWL_ERR(priv, "failed to allocate pci memory\n");
- iwl4965_dealloc_ucode_pci(priv);
- out_unbind:
- complete(&priv->_4965.firmware_loading_complete);
- device_release_driver(&priv->pci_dev->dev);
- release_firmware(ucode_raw);
-}
-
-static const char * const desc_lookup_text[] = {
- "OK",
- "FAIL",
- "BAD_PARAM",
- "BAD_CHECKSUM",
- "NMI_INTERRUPT_WDG",
- "SYSASSERT",
- "FATAL_ERROR",
- "BAD_COMMAND",
- "HW_ERROR_TUNE_LOCK",
- "HW_ERROR_TEMPERATURE",
- "ILLEGAL_CHAN_FREQ",
- "VCC_NOT_STABLE",
- "FH_ERROR",
- "NMI_INTERRUPT_HOST",
- "NMI_INTERRUPT_ACTION_PT",
- "NMI_INTERRUPT_UNKNOWN",
- "UCODE_VERSION_MISMATCH",
- "HW_ERROR_ABS_LOCK",
- "HW_ERROR_CAL_LOCK_FAIL",
- "NMI_INTERRUPT_INST_ACTION_PT",
- "NMI_INTERRUPT_DATA_ACTION_PT",
- "NMI_TRM_HW_ER",
- "NMI_INTERRUPT_TRM",
- "NMI_INTERRUPT_BREAK_POINT",
- "DEBUG_0",
- "DEBUG_1",
- "DEBUG_2",
- "DEBUG_3",
-};
-
-static struct { char *name; u8 num; } advanced_lookup[] = {
- { "NMI_INTERRUPT_WDG", 0x34 },
- { "SYSASSERT", 0x35 },
- { "UCODE_VERSION_MISMATCH", 0x37 },
- { "BAD_COMMAND", 0x38 },
- { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
- { "FATAL_ERROR", 0x3D },
- { "NMI_TRM_HW_ERR", 0x46 },
- { "NMI_INTERRUPT_TRM", 0x4C },
- { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
- { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
- { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
- { "NMI_INTERRUPT_HOST", 0x66 },
- { "NMI_INTERRUPT_ACTION_PT", 0x7C },
- { "NMI_INTERRUPT_UNKNOWN", 0x84 },
- { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
- { "ADVANCED_SYSASSERT", 0 },
-};
-
-static const char *iwl4965_desc_lookup(u32 num)
-{
- int i;
- int max = ARRAY_SIZE(desc_lookup_text);
-
- if (num < max)
- return desc_lookup_text[num];
-
- max = ARRAY_SIZE(advanced_lookup) - 1;
- for (i = 0; i < max; i++) {
- if (advanced_lookup[i].num == num)
- break;
- }
- return advanced_lookup[i].name;
-}
-
-#define ERROR_START_OFFSET (1 * sizeof(u32))
-#define ERROR_ELEM_SIZE (7 * sizeof(u32))
-
-void iwl4965_dump_nic_error_log(struct iwl_priv *priv)
-{
- u32 data2, line;
- u32 desc, time, count, base, data1;
- u32 blink1, blink2, ilink1, ilink2;
- u32 pc, hcmd;
-
- if (priv->ucode_type == UCODE_INIT) {
- base = le32_to_cpu(priv->card_alive_init.error_event_table_ptr);
- } else {
- base = le32_to_cpu(priv->card_alive.error_event_table_ptr);
- }
-
- if (!priv->cfg->ops->lib->is_valid_rtc_data_addr(base)) {
- IWL_ERR(priv,
- "Not valid error log pointer 0x%08X for %s uCode\n",
- base, (priv->ucode_type == UCODE_INIT) ? "Init" : "RT");
- return;
- }
-
- count = iwl_legacy_read_targ_mem(priv, base);
-
- if (ERROR_START_OFFSET <= count * ERROR_ELEM_SIZE) {
- IWL_ERR(priv, "Start IWL Error Log Dump:\n");
- IWL_ERR(priv, "Status: 0x%08lX, count: %d\n",
- priv->status, count);
- }
-
- desc = iwl_legacy_read_targ_mem(priv, base + 1 * sizeof(u32));
- priv->isr_stats.err_code = desc;
- pc = iwl_legacy_read_targ_mem(priv, base + 2 * sizeof(u32));
- blink1 = iwl_legacy_read_targ_mem(priv, base + 3 * sizeof(u32));
- blink2 = iwl_legacy_read_targ_mem(priv, base + 4 * sizeof(u32));
- ilink1 = iwl_legacy_read_targ_mem(priv, base + 5 * sizeof(u32));
- ilink2 = iwl_legacy_read_targ_mem(priv, base + 6 * sizeof(u32));
- data1 = iwl_legacy_read_targ_mem(priv, base + 7 * sizeof(u32));
- data2 = iwl_legacy_read_targ_mem(priv, base + 8 * sizeof(u32));
- line = iwl_legacy_read_targ_mem(priv, base + 9 * sizeof(u32));
- time = iwl_legacy_read_targ_mem(priv, base + 11 * sizeof(u32));
- hcmd = iwl_legacy_read_targ_mem(priv, base + 22 * sizeof(u32));
-
- trace_iwlwifi_legacy_dev_ucode_error(priv, desc,
- time, data1, data2, line,
- blink1, blink2, ilink1, ilink2);
-
- IWL_ERR(priv, "Desc Time "
- "data1 data2 line\n");
- IWL_ERR(priv, "%-28s (0x%04X) %010u 0x%08X 0x%08X %u\n",
- iwl4965_desc_lookup(desc), desc, time, data1, data2, line);
- IWL_ERR(priv, "pc blink1 blink2 ilink1 ilink2 hcmd\n");
- IWL_ERR(priv, "0x%05X 0x%05X 0x%05X 0x%05X 0x%05X 0x%05X\n",
- pc, blink1, blink2, ilink1, ilink2, hcmd);
-}
-
-static void iwl4965_rf_kill_ct_config(struct iwl_priv *priv)
-{
- struct iwl_ct_kill_config cmd;
- unsigned long flags;
- int ret = 0;
-
- spin_lock_irqsave(&priv->lock, flags);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- cmd.critical_temperature_R =
- cpu_to_le32(priv->hw_params.ct_kill_threshold);
-
- ret = iwl_legacy_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD,
- sizeof(cmd), &cmd);
- if (ret)
- IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
- else
- IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
- "succeeded, "
- "critical temperature is %d\n",
- priv->hw_params.ct_kill_threshold);
-}
-
-static const s8 default_queue_to_tx_fifo[] = {
- IWL_TX_FIFO_VO,
- IWL_TX_FIFO_VI,
- IWL_TX_FIFO_BE,
- IWL_TX_FIFO_BK,
- IWL49_CMD_FIFO_NUM,
- IWL_TX_FIFO_UNUSED,
- IWL_TX_FIFO_UNUSED,
-};
-
-static int iwl4965_alive_notify(struct iwl_priv *priv)
-{
- u32 a;
- unsigned long flags;
- int i, chan;
- u32 reg_val;
-
- spin_lock_irqsave(&priv->lock, flags);
-
- /* Clear 4965's internal Tx Scheduler data base */
- priv->scd_base_addr = iwl_legacy_read_prph(priv,
- IWL49_SCD_SRAM_BASE_ADDR);
- a = priv->scd_base_addr + IWL49_SCD_CONTEXT_DATA_OFFSET;
- for (; a < priv->scd_base_addr + IWL49_SCD_TX_STTS_BITMAP_OFFSET; a += 4)
- iwl_legacy_write_targ_mem(priv, a, 0);
- for (; a < priv->scd_base_addr + IWL49_SCD_TRANSLATE_TBL_OFFSET; a += 4)
- iwl_legacy_write_targ_mem(priv, a, 0);
- for (; a < priv->scd_base_addr +
- IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(priv->hw_params.max_txq_num); a += 4)
- iwl_legacy_write_targ_mem(priv, a, 0);
-
- /* Tel 4965 where to find Tx byte count tables */
- iwl_legacy_write_prph(priv, IWL49_SCD_DRAM_BASE_ADDR,
- priv->scd_bc_tbls.dma >> 10);
-
- /* Enable DMA channel */
- for (chan = 0; chan < FH49_TCSR_CHNL_NUM ; chan++)
- iwl_legacy_write_direct32(priv,
- FH_TCSR_CHNL_TX_CONFIG_REG(chan),
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CHNL_ENABLE |
- FH_TCSR_TX_CONFIG_REG_VAL_DMA_CREDIT_ENABLE);
-
- /* Update FH chicken bits */
- reg_val = iwl_legacy_read_direct32(priv, FH_TX_CHICKEN_BITS_REG);
- iwl_legacy_write_direct32(priv, FH_TX_CHICKEN_BITS_REG,
- reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN);
-
- /* Disable chain mode for all queues */
- iwl_legacy_write_prph(priv, IWL49_SCD_QUEUECHAIN_SEL, 0);
-
- /* Initialize each Tx queue (including the command queue) */
- for (i = 0; i < priv->hw_params.max_txq_num; i++) {
-
- /* TFD circular buffer read/write indexes */
- iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(i), 0);
- iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR, 0 | (i << 8));
-
- /* Max Tx Window size for Scheduler-ACK mode */
- iwl_legacy_write_targ_mem(priv, priv->scd_base_addr +
- IWL49_SCD_CONTEXT_QUEUE_OFFSET(i),
- (SCD_WIN_SIZE <<
- IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS) &
- IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK);
-
- /* Frame limit */
- iwl_legacy_write_targ_mem(priv, priv->scd_base_addr +
- IWL49_SCD_CONTEXT_QUEUE_OFFSET(i) +
- sizeof(u32),
- (SCD_FRAME_LIMIT <<
- IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS) &
- IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK);
-
- }
- iwl_legacy_write_prph(priv, IWL49_SCD_INTERRUPT_MASK,
- (1 << priv->hw_params.max_txq_num) - 1);
-
- /* Activate all Tx DMA/FIFO channels */
- iwl4965_txq_set_sched(priv, IWL_MASK(0, 6));
-
- iwl4965_set_wr_ptrs(priv, IWL_DEFAULT_CMD_QUEUE_NUM, 0);
-
- /* make sure all queue are not stopped */
- memset(&priv->queue_stopped[0], 0, sizeof(priv->queue_stopped));
- for (i = 0; i < 4; i++)
- atomic_set(&priv->queue_stop_count[i], 0);
-
- /* reset to 0 to enable all the queue first */
- priv->txq_ctx_active_msk = 0;
- /* Map each Tx/cmd queue to its corresponding fifo */
- BUILD_BUG_ON(ARRAY_SIZE(default_queue_to_tx_fifo) != 7);
-
- for (i = 0; i < ARRAY_SIZE(default_queue_to_tx_fifo); i++) {
- int ac = default_queue_to_tx_fifo[i];
-
- iwl_txq_ctx_activate(priv, i);
-
- if (ac == IWL_TX_FIFO_UNUSED)
- continue;
-
- iwl4965_tx_queue_set_status(priv, &priv->txq[i], ac, 0);
- }
-
- spin_unlock_irqrestore(&priv->lock, flags);
-
- return 0;
-}
-
-/**
- * iwl4965_alive_start - called after REPLY_ALIVE notification received
- * from protocol/runtime uCode (initialization uCode's
- * Alive gets handled by iwl_init_alive_start()).
- */
-static void iwl4965_alive_start(struct iwl_priv *priv)
-{
- int ret = 0;
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
-
- IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
-
- if (priv->card_alive.is_valid != UCODE_VALID_OK) {
- /* We had an error bringing up the hardware, so take it
- * all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Alive failed.\n");
- goto restart;
- }
-
- /* Initialize uCode has loaded Runtime uCode ... verify inst image.
- * This is a paranoid check, because we would not have gotten the
- * "runtime" alive if code weren't properly loaded. */
- if (iwl4965_verify_ucode(priv)) {
- /* Runtime instruction load was bad;
- * take it all the way back down so we can try again */
- IWL_DEBUG_INFO(priv, "Bad runtime uCode load.\n");
- goto restart;
- }
-
- ret = iwl4965_alive_notify(priv);
- if (ret) {
- IWL_WARN(priv,
- "Could not complete ALIVE transition [ntf]: %d\n", ret);
- goto restart;
- }
-
-
- /* After the ALIVE response, we can send host commands to the uCode */
- set_bit(STATUS_ALIVE, &priv->status);
-
- /* Enable watchdog to monitor the driver tx queues */
- iwl_legacy_setup_watchdog(priv);
-
- if (iwl_legacy_is_rfkill(priv))
- return;
-
- ieee80211_wake_queues(priv->hw);
-
- priv->active_rate = IWL_RATES_MASK;
-
- if (iwl_legacy_is_associated_ctx(ctx)) {
- struct iwl_legacy_rxon_cmd *active_rxon =
- (struct iwl_legacy_rxon_cmd *)&ctx->active;
- /* apply any changes in staging */
- ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
- active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
- } else {
- struct iwl_rxon_context *tmp;
- /* Initialize our rx_config data */
- for_each_context(priv, tmp)
- iwl_legacy_connection_init_rx_config(priv, tmp);
-
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv, ctx);
- }
-
- /* Configure bluetooth coexistence if enabled */
- iwl_legacy_send_bt_config(priv);
-
- iwl4965_reset_run_time_calib(priv);
-
- set_bit(STATUS_READY, &priv->status);
-
- /* Configure the adapter for unassociated operation */
- iwl_legacy_commit_rxon(priv, ctx);
-
- /* At this point, the NIC is initialized and operational */
- iwl4965_rf_kill_ct_config(priv);
-
- IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
- wake_up(&priv->wait_command_queue);
-
- iwl_legacy_power_update_mode(priv, true);
- IWL_DEBUG_INFO(priv, "Updated power mode\n");
-
- return;
-
- restart:
- queue_work(priv->workqueue, &priv->restart);
-}
-
-static void iwl4965_cancel_deferred_work(struct iwl_priv *priv);
-
-static void __iwl4965_down(struct iwl_priv *priv)
-{
- unsigned long flags;
- int exit_pending;
-
- IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
-
- iwl_legacy_scan_cancel_timeout(priv, 200);
-
- exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
- * to prevent rearm timer */
- del_timer_sync(&priv->watchdog);
-
- iwl_legacy_clear_ucode_stations(priv, NULL);
- iwl_legacy_dealloc_bcast_stations(priv);
- iwl_legacy_clear_driver_stations(priv);
-
- /* Unblock any waiting calls */
- wake_up_all(&priv->wait_command_queue);
-
- /* Wipe out the EXIT_PENDING status bit if we are not actually
- * exiting the module */
- if (!exit_pending)
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* stop and reset the on-board processor */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- /* tell the device to stop sending interrupts */
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
- iwl4965_synchronize_irq(priv);
-
- if (priv->mac80211_registered)
- ieee80211_stop_queues(priv->hw);
-
- /* If we have not previously called iwl_init() then
- * clear all bits but the RF Kill bit and return */
- if (!iwl_legacy_is_init(priv)) {
- priv->status = test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
- goto exit;
- }
-
- /* ...otherwise clear out all the status bits but the RF Kill
- * bit and continue taking the NIC down. */
- priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
- STATUS_RF_KILL_HW |
- test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
- STATUS_GEO_CONFIGURED |
- test_bit(STATUS_FW_ERROR, &priv->status) <<
- STATUS_FW_ERROR |
- test_bit(STATUS_EXIT_PENDING, &priv->status) <<
- STATUS_EXIT_PENDING;
-
- iwl4965_txq_ctx_stop(priv);
- iwl4965_rxq_stop(priv);
-
- /* Power-down device's busmaster DMA clocks */
- iwl_legacy_write_prph(priv, APMG_CLK_DIS_REG, APMG_CLK_VAL_DMA_CLK_RQT);
- udelay(5);
-
- /* Make sure (redundant) we've released our request to stay awake */
- iwl_legacy_clear_bit(priv, CSR_GP_CNTRL,
- CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ);
-
- /* Stop the device, and put it in low power state */
- iwl_legacy_apm_stop(priv);
-
- exit:
- memset(&priv->card_alive, 0, sizeof(struct iwl_alive_resp));
-
- dev_kfree_skb(priv->beacon_skb);
- priv->beacon_skb = NULL;
-
- /* clear out any free frames */
- iwl4965_clear_free_frames(priv);
-}
-
-static void iwl4965_down(struct iwl_priv *priv)
-{
- mutex_lock(&priv->mutex);
- __iwl4965_down(priv);
- mutex_unlock(&priv->mutex);
-
- iwl4965_cancel_deferred_work(priv);
-}
-
-#define HW_READY_TIMEOUT (50)
-
-static int iwl4965_set_hw_ready(struct iwl_priv *priv)
-{
- int ret = 0;
-
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_NIC_READY);
-
- /* See if we got it */
- ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
- CSR_HW_IF_CONFIG_REG_BIT_NIC_READY,
- HW_READY_TIMEOUT);
- if (ret != -ETIMEDOUT)
- priv->hw_ready = true;
- else
- priv->hw_ready = false;
-
- IWL_DEBUG_INFO(priv, "hardware %s\n",
- (priv->hw_ready == 1) ? "ready" : "not ready");
- return ret;
-}
-
-static int iwl4965_prepare_card_hw(struct iwl_priv *priv)
-{
- int ret = 0;
-
- IWL_DEBUG_INFO(priv, "iwl4965_prepare_card_hw enter\n");
-
- ret = iwl4965_set_hw_ready(priv);
- if (priv->hw_ready)
- return ret;
-
- /* If HW is not ready, prepare the conditions to check again */
- iwl_legacy_set_bit(priv, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_PREPARE);
-
- ret = iwl_poll_bit(priv, CSR_HW_IF_CONFIG_REG,
- ~CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE,
- CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE, 150000);
-
- /* HW should be ready by now, check again. */
- if (ret != -ETIMEDOUT)
- iwl4965_set_hw_ready(priv);
-
- return ret;
-}
-
-#define MAX_HW_RESTARTS 5
-
-static int __iwl4965_up(struct iwl_priv *priv)
-{
- struct iwl_rxon_context *ctx;
- int i;
- int ret;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
- return -EIO;
- }
-
- if (!priv->ucode_data_backup.v_addr || !priv->ucode_data.v_addr) {
- IWL_ERR(priv, "ucode not available for device bringup\n");
- return -EIO;
- }
-
- for_each_context(priv, ctx) {
- ret = iwl4965_alloc_bcast_station(priv, ctx);
- if (ret) {
- iwl_legacy_dealloc_bcast_stations(priv);
- return ret;
- }
- }
-
- iwl4965_prepare_card_hw(priv);
-
- if (!priv->hw_ready) {
- IWL_WARN(priv, "Exit HW not ready\n");
- return -EIO;
- }
-
- /* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl_read32(priv,
- CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- set_bit(STATUS_RF_KILL_HW, &priv->status);
-
- if (iwl_legacy_is_rfkill(priv)) {
- wiphy_rfkill_set_hw_state(priv->hw->wiphy, true);
-
- iwl_legacy_enable_interrupts(priv);
- IWL_WARN(priv, "Radio disabled by HW RF Kill switch\n");
- return 0;
- }
-
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
-
- /* must be initialised before iwl_hw_nic_init */
- priv->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
-
- ret = iwl4965_hw_nic_init(priv);
- if (ret) {
- IWL_ERR(priv, "Unable to init nic\n");
- return ret;
- }
-
- /* make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR,
- CSR_UCODE_DRV_GP1_BIT_CMD_BLOCKED);
-
- /* clear (again), then enable host interrupts */
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl_legacy_enable_interrupts(priv);
-
- /* really make sure rfkill handshake bits are cleared */
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
- iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, CSR_UCODE_SW_BIT_RFKILL);
-
- /* Copy original ucode data image from disk into backup cache.
- * This will be used to initialize the on-board processor's
- * data SRAM for a clean start when the runtime program first loads. */
- memcpy(priv->ucode_data_backup.v_addr, priv->ucode_data.v_addr,
- priv->ucode_data.len);
-
- for (i = 0; i < MAX_HW_RESTARTS; i++) {
-
- /* load bootstrap state machine,
- * load bootstrap program into processor's memory,
- * prepare to load the "initialize" uCode */
- ret = priv->cfg->ops->lib->load_ucode(priv);
-
- if (ret) {
- IWL_ERR(priv, "Unable to set up bootstrap uCode: %d\n",
- ret);
- continue;
- }
-
- /* start card; "initialize" will load runtime ucode */
- iwl4965_nic_start(priv);
-
- IWL_DEBUG_INFO(priv, DRV_NAME " is coming up\n");
-
- return 0;
- }
-
- set_bit(STATUS_EXIT_PENDING, &priv->status);
- __iwl4965_down(priv);
- clear_bit(STATUS_EXIT_PENDING, &priv->status);
-
- /* tried to restart and config the device for as long as our
- * patience could withstand */
- IWL_ERR(priv, "Unable to initialize device after %d attempts.\n", i);
- return -EIO;
-}
-
-
-/*****************************************************************************
- *
- * Workqueue callbacks
- *
- *****************************************************************************/
-
-static void iwl4965_bg_init_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, init_alive_start.work);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- goto out;
-
- priv->cfg->ops->lib->init_alive_start(priv);
-out:
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_alive_start(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, alive_start.work);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- goto out;
-
- iwl4965_alive_start(priv);
-out:
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_run_time_calib_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- run_time_calib_work);
-
- mutex_lock(&priv->mutex);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- if (priv->start_calib) {
- iwl4965_chain_noise_calibration(priv,
- (void *)&priv->_4965.statistics);
- iwl4965_sensitivity_calibration(priv,
- (void *)&priv->_4965.statistics);
- }
-
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_bg_restart(struct work_struct *data)
-{
- struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
- struct iwl_rxon_context *ctx;
-
- mutex_lock(&priv->mutex);
- for_each_context(priv, ctx)
- ctx->vif = NULL;
- priv->is_open = 0;
-
- __iwl4965_down(priv);
-
- mutex_unlock(&priv->mutex);
- iwl4965_cancel_deferred_work(priv);
- ieee80211_restart_hw(priv->hw);
- } else {
- iwl4965_down(priv);
-
- mutex_lock(&priv->mutex);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status)) {
- mutex_unlock(&priv->mutex);
- return;
- }
-
- __iwl4965_up(priv);
- mutex_unlock(&priv->mutex);
- }
-}
-
-static void iwl4965_bg_rx_replenish(struct work_struct *data)
-{
- struct iwl_priv *priv =
- container_of(data, struct iwl_priv, rx_replenish);
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- return;
-
- mutex_lock(&priv->mutex);
- iwl4965_rx_replenish(priv);
- mutex_unlock(&priv->mutex);
-}
-
-/*****************************************************************************
- *
- * mac80211 entry point functions
- *
- *****************************************************************************/
-
-#define UCODE_READY_TIMEOUT (4 * HZ)
-
-/*
- * Not a mac80211 entry point function, but it fits in with all the
- * other mac80211 functions grouped here.
- */
-static int iwl4965_mac_setup_register(struct iwl_priv *priv,
- u32 max_probe_length)
-{
- int ret;
- struct ieee80211_hw *hw = priv->hw;
- struct iwl_rxon_context *ctx;
-
- hw->rate_control_algorithm = "iwl-4965-rs";
-
- /* Tell mac80211 our characteristics */
- hw->flags = IEEE80211_HW_SIGNAL_DBM |
- IEEE80211_HW_AMPDU_AGGREGATION |
- IEEE80211_HW_NEED_DTIM_PERIOD |
- IEEE80211_HW_SPECTRUM_MGMT |
- IEEE80211_HW_REPORTS_TX_ACK_STATUS;
-
- if (priv->cfg->sku & IWL_SKU_N)
- hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
- IEEE80211_HW_SUPPORTS_STATIC_SMPS;
-
- hw->sta_data_size = sizeof(struct iwl_station_priv);
- hw->vif_data_size = sizeof(struct iwl_vif_priv);
-
- for_each_context(priv, ctx) {
- hw->wiphy->interface_modes |= ctx->interface_modes;
- hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
- }
-
- hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
- WIPHY_FLAG_DISABLE_BEACON_HINTS;
-
- /*
- * For now, disable PS by default because it affects
- * RX performance significantly.
- */
- hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
-
- hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
- /* we create the 802.11 header and a zero-length SSID element */
- hw->wiphy->max_scan_ie_len = max_probe_length - 24 - 2;
-
- /* Default value; 4 EDCA QOS priorities */
- hw->queues = 4;
-
- hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
-
- if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
- priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
- &priv->bands[IEEE80211_BAND_2GHZ];
- if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
- priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
- &priv->bands[IEEE80211_BAND_5GHZ];
-
- iwl_legacy_leds_init(priv);
-
- ret = ieee80211_register_hw(priv->hw);
- if (ret) {
- IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
- return ret;
- }
- priv->mac80211_registered = 1;
-
- return 0;
-}
-
-
-int iwl4965_mac_start(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
- int ret;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- /* we should be verifying the device is ready to be opened */
- mutex_lock(&priv->mutex);
- ret = __iwl4965_up(priv);
- mutex_unlock(&priv->mutex);
-
- if (ret)
- return ret;
-
- if (iwl_legacy_is_rfkill(priv))
- goto out;
-
- IWL_DEBUG_INFO(priv, "Start UP work done.\n");
-
- /* Wait for START_ALIVE from Run Time ucode. Otherwise callbacks from
- * mac80211 will not be run successfully. */
- ret = wait_event_timeout(priv->wait_command_queue,
- test_bit(STATUS_READY, &priv->status),
- UCODE_READY_TIMEOUT);
- if (!ret) {
- if (!test_bit(STATUS_READY, &priv->status)) {
- IWL_ERR(priv, "START_ALIVE timeout after %dms.\n",
- jiffies_to_msecs(UCODE_READY_TIMEOUT));
- return -ETIMEDOUT;
- }
- }
-
- iwl4965_led_enable(priv);
-
-out:
- priv->is_open = 1;
- IWL_DEBUG_MAC80211(priv, "leave\n");
- return 0;
-}
-
-void iwl4965_mac_stop(struct ieee80211_hw *hw)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (!priv->is_open)
- return;
-
- priv->is_open = 0;
-
- iwl4965_down(priv);
-
- flush_workqueue(priv->workqueue);
-
- /* User space software may expect getting rfkill changes
- * even if interface is down */
- iwl_write32(priv, CSR_INT, 0xFFFFFFFF);
- iwl_legacy_enable_rfkill_int(priv);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-
-void iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
- struct iwl_priv *priv = hw->priv;
-
- IWL_DEBUG_MACDUMP(priv, "enter\n");
-
- IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
- ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
-
- if (iwl4965_tx_skb(priv, skb))
- dev_kfree_skb_any(skb);
-
- IWL_DEBUG_MACDUMP(priv, "leave\n");
-}
-
-void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_key_conf *keyconf,
- struct ieee80211_sta *sta,
- u32 iv32, u16 *phase1key)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- iwl4965_update_tkip_key(priv, vif_priv->ctx, keyconf, sta,
- iv32, phase1key);
-
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-
-int iwl4965_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- struct ieee80211_vif *vif, struct ieee80211_sta *sta,
- struct ieee80211_key_conf *key)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
- struct iwl_rxon_context *ctx = vif_priv->ctx;
- int ret;
- u8 sta_id;
- bool is_default_wep_key = false;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- if (priv->cfg->mod_params->sw_crypto) {
- IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
- return -EOPNOTSUPP;
- }
-
- sta_id = iwl_legacy_sta_id_or_broadcast(priv, vif_priv->ctx, sta);
- if (sta_id == IWL_INVALID_STATION)
- return -EINVAL;
-
- mutex_lock(&priv->mutex);
- iwl_legacy_scan_cancel_timeout(priv, 100);
-
- /*
- * If we are getting WEP group key and we didn't receive any key mapping
- * so far, we are in legacy wep mode (group key only), otherwise we are
- * in 1X mode.
- * In legacy wep mode, we use another host command to the uCode.
- */
- if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
- key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
- !sta) {
- if (cmd == SET_KEY)
- is_default_wep_key = !ctx->key_mapping_keys;
- else
- is_default_wep_key =
- (key->hw_key_idx == HW_KEY_DEFAULT);
- }
-
- switch (cmd) {
- case SET_KEY:
- if (is_default_wep_key)
- ret = iwl4965_set_default_wep_key(priv,
- vif_priv->ctx, key);
- else
- ret = iwl4965_set_dynamic_key(priv, vif_priv->ctx,
- key, sta_id);
-
- IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
- break;
- case DISABLE_KEY:
- if (is_default_wep_key)
- ret = iwl4965_remove_default_wep_key(priv, ctx, key);
- else
- ret = iwl4965_remove_dynamic_key(priv, ctx,
- key, sta_id);
-
- IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
- break;
- default:
- ret = -EINVAL;
- }
-
- mutex_unlock(&priv->mutex);
- IWL_DEBUG_MAC80211(priv, "leave\n");
-
- return ret;
-}
-
-int iwl4965_mac_ampdu_action(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- enum ieee80211_ampdu_mlme_action action,
- struct ieee80211_sta *sta, u16 tid, u16 *ssn,
- u8 buf_size)
-{
- struct iwl_priv *priv = hw->priv;
- int ret = -EINVAL;
-
- IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
- sta->addr, tid);
-
- if (!(priv->cfg->sku & IWL_SKU_N))
- return -EACCES;
-
- mutex_lock(&priv->mutex);
-
- switch (action) {
- case IEEE80211_AMPDU_RX_START:
- IWL_DEBUG_HT(priv, "start Rx\n");
- ret = iwl4965_sta_rx_agg_start(priv, sta, tid, *ssn);
- break;
- case IEEE80211_AMPDU_RX_STOP:
- IWL_DEBUG_HT(priv, "stop Rx\n");
- ret = iwl4965_sta_rx_agg_stop(priv, sta, tid);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- ret = 0;
- break;
- case IEEE80211_AMPDU_TX_START:
- IWL_DEBUG_HT(priv, "start Tx\n");
- ret = iwl4965_tx_agg_start(priv, vif, sta, tid, ssn);
- break;
- case IEEE80211_AMPDU_TX_STOP:
- IWL_DEBUG_HT(priv, "stop Tx\n");
- ret = iwl4965_tx_agg_stop(priv, vif, sta, tid);
- if (test_bit(STATUS_EXIT_PENDING, &priv->status))
- ret = 0;
- break;
- case IEEE80211_AMPDU_TX_OPERATIONAL:
- ret = 0;
- break;
- }
- mutex_unlock(&priv->mutex);
-
- return ret;
-}
-
-int iwl4965_mac_sta_add(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_sta *sta)
-{
- struct iwl_priv *priv = hw->priv;
- struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
- struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
- bool is_ap = vif->type == NL80211_IFTYPE_STATION;
- int ret;
- u8 sta_id;
-
- IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
- sta->addr);
- mutex_lock(&priv->mutex);
- IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
- sta->addr);
- sta_priv->common.sta_id = IWL_INVALID_STATION;
-
- atomic_set(&sta_priv->pending_frames, 0);
-
- ret = iwl_legacy_add_station_common(priv, vif_priv->ctx, sta->addr,
- is_ap, sta, &sta_id);
- if (ret) {
- IWL_ERR(priv, "Unable to add station %pM (%d)\n",
- sta->addr, ret);
- /* Should we return success if return code is EEXIST ? */
- mutex_unlock(&priv->mutex);
- return ret;
- }
-
- sta_priv->common.sta_id = sta_id;
-
- /* Initialize rate scaling */
- IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
- sta->addr);
- iwl4965_rs_rate_init(priv, sta, sta_id);
- mutex_unlock(&priv->mutex);
-
- return 0;
-}
-
-void iwl4965_mac_channel_switch(struct ieee80211_hw *hw,
- struct ieee80211_channel_switch *ch_switch)
-{
- struct iwl_priv *priv = hw->priv;
- const struct iwl_channel_info *ch_info;
- struct ieee80211_conf *conf = &hw->conf;
- struct ieee80211_channel *channel = ch_switch->channel;
- struct iwl_ht_config *ht_conf = &priv->current_ht_config;
-
- struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
- u16 ch;
-
- IWL_DEBUG_MAC80211(priv, "enter\n");
-
- mutex_lock(&priv->mutex);
-
- if (iwl_legacy_is_rfkill(priv))
- goto out;
-
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status) ||
- test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
- goto out;
-
- if (!iwl_legacy_is_associated_ctx(ctx))
- goto out;
-
- if (!priv->cfg->ops->lib->set_channel_switch)
- goto out;
-
- ch = channel->hw_value;
- if (le16_to_cpu(ctx->active.channel) == ch)
- goto out;
-
- ch_info = iwl_legacy_get_channel_info(priv, channel->band, ch);
- if (!iwl_legacy_is_channel_valid(ch_info)) {
- IWL_DEBUG_MAC80211(priv, "invalid channel\n");
- goto out;
- }
-
- spin_lock_irq(&priv->lock);
-
- priv->current_ht_config.smps = conf->smps_mode;
-
- /* Configure HT40 channels */
- ctx->ht.enabled = conf_is_ht(conf);
- if (ctx->ht.enabled) {
- if (conf_is_ht40_minus(conf)) {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_BELOW;
- ctx->ht.is_40mhz = true;
- } else if (conf_is_ht40_plus(conf)) {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
- ctx->ht.is_40mhz = true;
- } else {
- ctx->ht.extension_chan_offset =
- IEEE80211_HT_PARAM_CHA_SEC_NONE;
- ctx->ht.is_40mhz = false;
- }
- } else
- ctx->ht.is_40mhz = false;
-
- if ((le16_to_cpu(ctx->staging.channel) != ch))
- ctx->staging.flags = 0;
-
- iwl_legacy_set_rxon_channel(priv, channel, ctx);
- iwl_legacy_set_rxon_ht(priv, ht_conf);
- iwl_legacy_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
-
- spin_unlock_irq(&priv->lock);
-
- iwl_legacy_set_rate(priv);
- /*
- * at this point, staging_rxon has the
- * configuration for channel switch
- */
- set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
- priv->switch_channel = cpu_to_le16(ch);
- if (priv->cfg->ops->lib->set_channel_switch(priv, ch_switch)) {
- clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status);
- priv->switch_channel = 0;
- ieee80211_chswitch_done(ctx->vif, false);
- }
-
-out:
- mutex_unlock(&priv->mutex);
- IWL_DEBUG_MAC80211(priv, "leave\n");
-}
-
-void iwl4965_configure_filter(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- u64 multicast)
-{
- struct iwl_priv *priv = hw->priv;
- __le32 filter_or = 0, filter_nand = 0;
- struct iwl_rxon_context *ctx;
-
-#define CHK(test, flag) do { \
- if (*total_flags & (test)) \
- filter_or |= (flag); \
- else \
- filter_nand |= (flag); \
- } while (0)
-
- IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
- changed_flags, *total_flags);
-
- CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
- /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
- CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
- CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
-
-#undef CHK
-
- mutex_lock(&priv->mutex);
-
- for_each_context(priv, ctx) {
- ctx->staging.filter_flags &= ~filter_nand;
- ctx->staging.filter_flags |= filter_or;
-
- /*
- * Not committing directly because hardware can perform a scan,
- * but we'll eventually commit the filter flags change anyway.
- */
- }
-
- mutex_unlock(&priv->mutex);
-
- /*
- * Receiving all multicast frames is always enabled by the
- * default flags setup in iwl_legacy_connection_init_rx_config()
- * since we currently do not support programming multicast
- * filters into the device.
- */
- *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
- FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
-}
-
-/*****************************************************************************
- *
- * driver setup and teardown
- *
- *****************************************************************************/
-
-static void iwl4965_bg_txpower_work(struct work_struct *work)
-{
- struct iwl_priv *priv = container_of(work, struct iwl_priv,
- txpower_work);
-
- mutex_lock(&priv->mutex);
-
- /* If a scan happened to start before we got here
- * then just return; the statistics notification will
- * kick off another scheduled work to compensate for
- * any temperature delta we missed here. */
- if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
- test_bit(STATUS_SCANNING, &priv->status))
- goto out;
-
- /* Regardless of if we are associated, we must reconfigure the
- * TX power since frames can be sent on non-radar channels while
- * not associated */
- priv->cfg->ops->lib->send_tx_power(priv);
-
- /* Update last_temperature to keep is_calib_needed from running
- * when it isn't needed... */
- priv->last_temperature = priv->temperature;
-out:
- mutex_unlock(&priv->mutex);
-}
-
-static void iwl4965_setup_deferred_work(struct iwl_priv *priv)
-{
- priv->workqueue = create_singlethread_workqueue(DRV_NAME);
-
- init_waitqueue_head(&priv->wait_command_queue);
-
- INIT_WORK(&priv->restart, iwl4965_bg_restart);
- INIT_WORK(&priv->rx_replenish, iwl4965_bg_rx_replenish);
- INIT_WORK(&priv->run_time_calib_work, iwl4965_bg_run_time_calib_work);
- INIT_DELAYED_WORK(&priv->init_alive_start, iwl4965_bg_init_alive_start);
- INIT_DELAYED_WORK(&priv->alive_start, iwl4965_bg_alive_start);
-
- iwl_legacy_setup_scan_deferred_work(priv);
-
- INIT_WORK(&priv->txpower_work, iwl4965_bg_txpower_work);
-
- init_timer(&priv->statistics_periodic);
- priv->statistics_periodic.data = (unsigned long)priv;
- priv->statistics_periodic.function = iwl4965_bg_statistics_periodic;
-
- init_timer(&priv->watchdog);
- priv->watchdog.data = (unsigned long)priv;
- priv->watchdog.function = iwl_legacy_bg_watchdog;
-
- tasklet_init(&priv->irq_tasklet, (void (*)(unsigned long))
- iwl4965_irq_tasklet, (unsigned long)priv);
-}
-
-static void iwl4965_cancel_deferred_work(struct iwl_priv *priv)
-{
- cancel_work_sync(&priv->txpower_work);
- cancel_delayed_work_sync(&priv->init_alive_start);
- cancel_delayed_work(&priv->alive_start);
- cancel_work_sync(&priv->run_time_calib_work);
-
- iwl_legacy_cancel_scan_deferred_work(priv);
-
- del_timer_sync(&priv->statistics_periodic);
-}
-
-static void iwl4965_init_hw_rates(struct iwl_priv *priv,
- struct ieee80211_rate *rates)
-{
- int i;
-
- for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
- rates[i].bitrate = iwlegacy_rates[i].ieee * 5;
- rates[i].hw_value = i; /* Rate scaling will work on indexes */
- rates[i].hw_value_short = i;
- rates[i].flags = 0;
- if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
- /*
- * If CCK != 1M then set short preamble rate flag.
- */
- rates[i].flags |=
- (iwlegacy_rates[i].plcp == IWL_RATE_1M_PLCP) ?
- 0 : IEEE80211_RATE_SHORT_PREAMBLE;
- }
- }
-}
-/*
- * Acquire priv->lock before calling this function !
- */
-void iwl4965_set_wr_ptrs(struct iwl_priv *priv, int txq_id, u32 index)
-{
- iwl_legacy_write_direct32(priv, HBUS_TARG_WRPTR,
- (index & 0xff) | (txq_id << 8));
- iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_RDPTR(txq_id), index);
-}
-
-void iwl4965_tx_queue_set_status(struct iwl_priv *priv,
- struct iwl_tx_queue *txq,
- int tx_fifo_id, int scd_retry)
-{
- int txq_id = txq->q.id;
-
- /* Find out whether to activate Tx queue */
- int active = test_bit(txq_id, &priv->txq_ctx_active_msk) ? 1 : 0;
-
- /* Set up and activate */
- iwl_legacy_write_prph(priv, IWL49_SCD_QUEUE_STATUS_BITS(txq_id),
- (active << IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE) |
- (tx_fifo_id << IWL49_SCD_QUEUE_STTS_REG_POS_TXF) |
- (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_WSL) |
- (scd_retry << IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK) |
- IWL49_SCD_QUEUE_STTS_REG_MSK);
-
- txq->sched_retry = scd_retry;
-
- IWL_DEBUG_INFO(priv, "%s %s Queue %d on AC %d\n",
- active ? "Activate" : "Deactivate",
- scd_retry ? "BA" : "AC", txq_id, tx_fifo_id);
-}
-
-
-static int iwl4965_init_drv(struct iwl_priv *priv)
-{
- int ret;
-
- spin_lock_init(&priv->sta_lock);
- spin_lock_init(&priv->hcmd_lock);
-
- INIT_LIST_HEAD(&priv->free_frames);
-
- mutex_init(&priv->mutex);
-
- priv->ieee_channels = NULL;
- priv->ieee_rates = NULL;
- priv->band = IEEE80211_BAND_2GHZ;
-
- priv->iw_mode = NL80211_IFTYPE_STATION;
- priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
- priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
-
- /* initialize force reset */
- priv->force_reset.reset_duration = IWL_DELAY_NEXT_FORCE_FW_RELOAD;
-
- /* Choose which receivers/antennas to use */
- if (priv->cfg->ops->hcmd->set_rxon_chain)
- priv->cfg->ops->hcmd->set_rxon_chain(priv,
- &priv->contexts[IWL_RXON_CTX_BSS]);
-
- iwl_legacy_init_scan_params(priv);
-
- ret = iwl_legacy_init_channel_map(priv);
- if (ret) {
- IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
- goto err;
- }
-
- ret = iwl_legacy_init_geos(priv);
- if (ret) {
- IWL_ERR(priv, "initializing geos failed: %d\n", ret);
- goto err_free_channel_map;
- }
- iwl4965_init_hw_rates(priv, priv->ieee_rates);
-
- return 0;
-
-err_free_channel_map:
- iwl_legacy_free_channel_map(priv);
-err:
- return ret;
-}
-
-static void iwl4965_uninit_drv(struct iwl_priv *priv)
-{
- iwl4965_calib_free_results(priv);
- iwl_legacy_free_geos(priv);
- iwl_legacy_free_channel_map(priv);
- kfree(priv->scan_cmd);
-}
-
-static void iwl4965_hw_detect(struct iwl_priv *priv)
-{
- priv->hw_rev = _iwl_legacy_read32(priv, CSR_HW_REV);
- priv->hw_wa_rev = _iwl_legacy_read32(priv, CSR_HW_REV_WA_REG);
- priv->rev_id = priv->pci_dev->revision;
- IWL_DEBUG_INFO(priv, "HW Revision ID = 0x%X\n", priv->rev_id);
-}
-
-static int iwl4965_set_hw_params(struct iwl_priv *priv)
-{
- priv->hw_params.max_rxq_size = RX_QUEUE_SIZE;
- priv->hw_params.max_rxq_log = RX_QUEUE_SIZE_LOG;
- if (priv->cfg->mod_params->amsdu_size_8K)
- priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_8K);
- else
- priv->hw_params.rx_page_order = get_order(IWL_RX_BUF_SIZE_4K);
-
- priv->hw_params.max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL;
-
- if (priv->cfg->mod_params->disable_11n)
- priv->cfg->sku &= ~IWL_SKU_N;
-
- /* Device-specific setup */
- return priv->cfg->ops->lib->set_hw_params(priv);
-}
-
-static const u8 iwl4965_bss_ac_to_fifo[] = {
- IWL_TX_FIFO_VO,
- IWL_TX_FIFO_VI,
- IWL_TX_FIFO_BE,
- IWL_TX_FIFO_BK,
-};
-
-static const u8 iwl4965_bss_ac_to_queue[] = {
- 0, 1, 2, 3,
-};
-
-static int
-iwl4965_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
- int err = 0, i;
- struct iwl_priv *priv;
- struct ieee80211_hw *hw;
- struct iwl_cfg *cfg = (struct iwl_cfg *)(ent->driver_data);
- unsigned long flags;
- u16 pci_cmd;
-
- /************************
- * 1. Allocating HW data
- ************************/
-
- hw = iwl_legacy_alloc_all(cfg);
- if (!hw) {
- err = -ENOMEM;
- goto out;
- }
- priv = hw->priv;
- /* At this point both hw and priv are allocated. */
-
- /*
- * The default context is always valid,
- * more may be discovered when firmware
- * is loaded.
- */
- priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
-
- for (i = 0; i < NUM_IWL_RXON_CTX; i++)
- priv->contexts[i].ctxid = i;
-
- priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
- priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
- priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
- priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
- priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
- priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
- priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
- priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
- priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwl4965_bss_ac_to_fifo;
- priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwl4965_bss_ac_to_queue;
- priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
- BIT(NL80211_IFTYPE_ADHOC);
- priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
- BIT(NL80211_IFTYPE_STATION);
- priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
- priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
- priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
- priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
-
- BUILD_BUG_ON(NUM_IWL_RXON_CTX != 1);
-
- SET_IEEE80211_DEV(hw, &pdev->dev);
-
- IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
- priv->cfg = cfg;
- priv->pci_dev = pdev;
- priv->inta_mask = CSR_INI_SET_MASK;
-
- if (iwl_legacy_alloc_traffic_mem(priv))
- IWL_ERR(priv, "Not enough memory to generate traffic log\n");
-
- /**************************
- * 2. Initializing PCI bus
- **************************/
- pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
- PCIE_LINK_STATE_CLKPM);
-
- if (pci_enable_device(pdev)) {
- err = -ENODEV;
- goto out_ieee80211_free_hw;
- }
-
- pci_set_master(pdev);
-
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
- if (!err)
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(36));
- if (err) {
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (!err)
- err = pci_set_consistent_dma_mask(pdev,
- DMA_BIT_MASK(32));
- /* both attempts failed: */
- if (err) {
- IWL_WARN(priv, "No suitable DMA available.\n");
- goto out_pci_disable_device;
- }
- }
-
- err = pci_request_regions(pdev, DRV_NAME);
- if (err)
- goto out_pci_disable_device;
-
- pci_set_drvdata(pdev, priv);
-
-
- /***********************
- * 3. Read REV register
- ***********************/
- priv->hw_base = pci_iomap(pdev, 0, 0);
- if (!priv->hw_base) {
- err = -ENODEV;
- goto out_pci_release_regions;
- }
-
- IWL_DEBUG_INFO(priv, "pci_resource_len = 0x%08llx\n",
- (unsigned long long) pci_resource_len(pdev, 0));
- IWL_DEBUG_INFO(priv, "pci_resource_base = %p\n", priv->hw_base);
-
- /* these spin locks will be used in apm_ops.init and EEPROM access
- * we should init now
- */
- spin_lock_init(&priv->reg_lock);
- spin_lock_init(&priv->lock);
-
- /*
- * stop and reset the on-board processor just in case it is in a
- * strange state ... like being left stranded by a primary kernel
- * and this is now the kdump kernel trying to start up
- */
- iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
-
- iwl4965_hw_detect(priv);
- IWL_INFO(priv, "Detected %s, REV=0x%X\n",
- priv->cfg->name, priv->hw_rev);
-
- /* We disable the RETRY_TIMEOUT register (0x41) to keep
- * PCI Tx retries from interfering with C3 CPU state */
- pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00);
-
- iwl4965_prepare_card_hw(priv);
- if (!priv->hw_ready) {
- IWL_WARN(priv, "Failed, HW not ready\n");
- goto out_iounmap;
- }
-
- /*****************
- * 4. Read EEPROM
- *****************/
- /* Read the EEPROM */
- err = iwl_legacy_eeprom_init(priv);
- if (err) {
- IWL_ERR(priv, "Unable to init EEPROM\n");
- goto out_iounmap;
- }
- err = iwl4965_eeprom_check_version(priv);
- if (err)
- goto out_free_eeprom;
-
- if (err)
- goto out_free_eeprom;
-
- /* extract MAC Address */
- iwl4965_eeprom_get_mac(priv, priv->addresses[0].addr);
- IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
- priv->hw->wiphy->addresses = priv->addresses;
- priv->hw->wiphy->n_addresses = 1;
-
- /************************
- * 5. Setup HW constants
- ************************/
- if (iwl4965_set_hw_params(priv)) {
- IWL_ERR(priv, "failed to set hw parameters\n");
- goto out_free_eeprom;
- }
-
- /*******************
- * 6. Setup priv
- *******************/
-
- err = iwl4965_init_drv(priv);
- if (err)
- goto out_free_eeprom;
- /* At this point both hw and priv are initialized. */
-
- /********************
- * 7. Setup services
- ********************/
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- pci_enable_msi(priv->pci_dev);
-
- err = request_irq(priv->pci_dev->irq, iwl_legacy_isr,
- IRQF_SHARED, DRV_NAME, priv);
- if (err) {
- IWL_ERR(priv, "Error allocating IRQ %d\n", priv->pci_dev->irq);
- goto out_disable_msi;
- }
-
- iwl4965_setup_deferred_work(priv);
- iwl4965_setup_rx_handlers(priv);
-
- /*********************************************
- * 8. Enable interrupts and read RFKILL state
- *********************************************/
-
- /* enable rfkill interrupt: hw bug w/a */
- pci_read_config_word(priv->pci_dev, PCI_COMMAND, &pci_cmd);
- if (pci_cmd & PCI_COMMAND_INTX_DISABLE) {
- pci_cmd &= ~PCI_COMMAND_INTX_DISABLE;
- pci_write_config_word(priv->pci_dev, PCI_COMMAND, pci_cmd);
- }
-
- iwl_legacy_enable_rfkill_int(priv);
-
- /* If platform's RF_KILL switch is NOT set to KILL */
- if (iwl_read32(priv, CSR_GP_CNTRL) &
- CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
- clear_bit(STATUS_RF_KILL_HW, &priv->status);
- else
- set_bit(STATUS_RF_KILL_HW, &priv->status);
-
- wiphy_rfkill_set_hw_state(priv->hw->wiphy,
- test_bit(STATUS_RF_KILL_HW, &priv->status));
-
- iwl_legacy_power_initialize(priv);
-
- init_completion(&priv->_4965.firmware_loading_complete);
-
- err = iwl4965_request_firmware(priv, true);
- if (err)
- goto out_destroy_workqueue;
-
- return 0;
-
- out_destroy_workqueue:
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- free_irq(priv->pci_dev->irq, priv);
- out_disable_msi:
- pci_disable_msi(priv->pci_dev);
- iwl4965_uninit_drv(priv);
- out_free_eeprom:
- iwl_legacy_eeprom_free(priv);
- out_iounmap:
- pci_iounmap(pdev, priv->hw_base);
- out_pci_release_regions:
- pci_set_drvdata(pdev, NULL);
- pci_release_regions(pdev);
- out_pci_disable_device:
- pci_disable_device(pdev);
- out_ieee80211_free_hw:
- iwl_legacy_free_traffic_mem(priv);
- ieee80211_free_hw(priv->hw);
- out:
- return err;
-}
-
-static void __devexit iwl4965_pci_remove(struct pci_dev *pdev)
-{
- struct iwl_priv *priv = pci_get_drvdata(pdev);
- unsigned long flags;
-
- if (!priv)
- return;
-
- wait_for_completion(&priv->_4965.firmware_loading_complete);
-
- IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
-
- iwl_legacy_dbgfs_unregister(priv);
- sysfs_remove_group(&pdev->dev.kobj, &iwl_attribute_group);
-
- /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
- * to be called and iwl4965_down since we are removing the device
- * we need to set STATUS_EXIT_PENDING bit.
- */
- set_bit(STATUS_EXIT_PENDING, &priv->status);
-
- iwl_legacy_leds_exit(priv);
-
- if (priv->mac80211_registered) {
- ieee80211_unregister_hw(priv->hw);
- priv->mac80211_registered = 0;
- } else {
- iwl4965_down(priv);
- }
-
- /*
- * Make sure device is reset to low power before unloading driver.
- * This may be redundant with iwl4965_down(), but there are paths to
- * run iwl4965_down() without calling apm_ops.stop(), and there are
- * paths to avoid running iwl4965_down() at all before leaving driver.
- * This (inexpensive) call *makes sure* device is reset.
- */
- iwl_legacy_apm_stop(priv);
-
- /* make sure we flush any pending irq or
- * tasklet for the driver
- */
- spin_lock_irqsave(&priv->lock, flags);
- iwl_legacy_disable_interrupts(priv);
- spin_unlock_irqrestore(&priv->lock, flags);
-
- iwl4965_synchronize_irq(priv);
-
- iwl4965_dealloc_ucode_pci(priv);
-
- if (priv->rxq.bd)
- iwl4965_rx_queue_free(priv, &priv->rxq);
- iwl4965_hw_txq_ctx_free(priv);
-
- iwl_legacy_eeprom_free(priv);
-
-
- /*netif_stop_queue(dev); */
- flush_workqueue(priv->workqueue);
-
- /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
- * priv->workqueue... so we can't take down the workqueue
- * until now... */
- destroy_workqueue(priv->workqueue);
- priv->workqueue = NULL;
- iwl_legacy_free_traffic_mem(priv);
-
- free_irq(priv->pci_dev->irq, priv);
- pci_disable_msi(priv->pci_dev);
- pci_iounmap(pdev, priv->hw_base);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- pci_set_drvdata(pdev, NULL);
-
- iwl4965_uninit_drv(priv);
-
- dev_kfree_skb(priv->beacon_skb);
-
- ieee80211_free_hw(priv->hw);
-}
-
-/*
- * Activate/Deactivate Tx DMA/FIFO channels according tx fifos mask
- * must be called under priv->lock and mac access
- */
-void iwl4965_txq_set_sched(struct iwl_priv *priv, u32 mask)
-{
- iwl_legacy_write_prph(priv, IWL49_SCD_TXFACT, mask);
-}
-
-/*****************************************************************************
- *
- * driver and module entry point
- *
- *****************************************************************************/
-
-/* Hardware specific file defines the PCI IDs table for that hardware module */
-static DEFINE_PCI_DEVICE_TABLE(iwl4965_hw_card_ids) = {
-#if defined(CONFIG_IWL4965_MODULE) || defined(CONFIG_IWL4965)
- {IWL_PCI_DEVICE(0x4229, PCI_ANY_ID, iwl4965_cfg)},
- {IWL_PCI_DEVICE(0x4230, PCI_ANY_ID, iwl4965_cfg)},
-#endif /* CONFIG_IWL4965 */
-
- {0}
-};
-MODULE_DEVICE_TABLE(pci, iwl4965_hw_card_ids);
-
-static struct pci_driver iwl4965_driver = {
- .name = DRV_NAME,
- .id_table = iwl4965_hw_card_ids,
- .probe = iwl4965_pci_probe,
- .remove = __devexit_p(iwl4965_pci_remove),
- .driver.pm = IWL_LEGACY_PM_OPS,
-};
-
-static int __init iwl4965_init(void)
-{
-
- int ret;
- pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
- pr_info(DRV_COPYRIGHT "\n");
-
- ret = iwl4965_rate_control_register();
- if (ret) {
- pr_err("Unable to register rate control algorithm: %d\n", ret);
- return ret;
- }
-
- ret = pci_register_driver(&iwl4965_driver);
- if (ret) {
- pr_err("Unable to initialize PCI module\n");
- goto error_register;
- }
-
- return ret;
-
-error_register:
- iwl4965_rate_control_unregister();
- return ret;
-}
-
-static void __exit iwl4965_exit(void)
-{
- pci_unregister_driver(&iwl4965_driver);
- iwl4965_rate_control_unregister();
-}
-
-module_exit(iwl4965_exit);
-module_init(iwl4965_init);
-
-#ifdef CONFIG_IWLWIFI_LEGACY_DEBUG
-module_param_named(debug, iwlegacy_debug_level, uint, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(debug, "debug output mask");
-#endif
-
-module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, S_IRUGO);
-MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
-module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, S_IRUGO);
-MODULE_PARM_DESC(queues_num, "number of hw queues.");
-module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, S_IRUGO);
-MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
-module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K,
- int, S_IRUGO);
-MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
-module_param_named(fw_restart, iwl4965_mod_params.restart_fw, int, S_IRUGO);
-MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
diff --git a/drivers/net/wireless/iwlegacy/iwl-prph.h b/drivers/net/wireless/iwlegacy/prph.h
similarity index 82%
rename from drivers/net/wireless/iwlegacy/iwl-prph.h
rename to drivers/net/wireless/iwlegacy/prph.h
index 30a4930..ffec4b4 100644
--- a/drivers/net/wireless/iwlegacy/iwl-prph.h
+++ b/drivers/net/wireless/iwlegacy/prph.h
@@ -60,8 +60,8 @@
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
-#ifndef __iwl_legacy_prph_h__
-#define __iwl_legacy_prph_h__
+#ifndef __il_prph_h__
+#define __il_prph_h__
/*
* Registers in this file are internal, not PCI bus memory mapped.
@@ -91,9 +91,9 @@
#define APMG_PS_CTRL_VAL_RESET_REQ (0x04000000)
#define APMG_PS_CTRL_MSK_PWR_SRC (0x03000000)
#define APMG_PS_CTRL_VAL_PWR_SRC_VMAIN (0x00000000)
-#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */
+#define APMG_PS_CTRL_VAL_PWR_SRC_MAX (0x01000000) /* 3945 only */
#define APMG_PS_CTRL_VAL_PWR_SRC_VAUX (0x02000000)
-#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */
+#define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */
#define APMG_SVR_DIGITAL_VOLTAGE_1_32 (0x00000060)
#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
@@ -120,13 +120,13 @@
*
* 1) Initialization -- performs hardware calibration and sets up some
* internal data, then notifies host via "initialize alive" notification
- * (struct iwl_init_alive_resp) that it has completed all of its work.
+ * (struct il_init_alive_resp) that it has completed all of its work.
* After signal from host, it then loads and starts the runtime program.
* The initialization program must be used when initially setting up the
* NIC after loading the driver.
*
* 2) Runtime/Protocol -- performs all normal runtime operations. This
- * notifies host via "alive" notification (struct iwl_alive_resp) that it
+ * notifies host via "alive" notification (struct il_alive_resp) that it
* is ready to be used.
*
* When initializing the NIC, the host driver does the following procedure:
@@ -189,7 +189,7 @@
* procedure.
*
* This save/restore method is mostly for autonomous power management during
- * normal operation (result of POWER_TABLE_CMD). Platform suspend/resume and
+ * normal operation (result of C_POWER_TBL). Platform suspend/resume and
* RFKILL should use complete restarts (with total re-initialization) of uCode,
* allowing total shutdown (including BSM memory).
*
@@ -202,19 +202,19 @@
*/
/* BSM bit fields */
-#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */
-#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup*/
-#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */
+#define BSM_WR_CTRL_REG_BIT_START (0x80000000) /* start boot load now */
+#define BSM_WR_CTRL_REG_BIT_START_EN (0x40000000) /* enable boot after pwrup */
+#define BSM_DRAM_INST_LOAD (0x80000000) /* start program load now */
/* BSM addresses */
#define BSM_BASE (PRPH_BASE + 0x3400)
#define BSM_END (PRPH_BASE + 0x3800)
-#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */
-#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */
-#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */
-#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */
-#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */
+#define BSM_WR_CTRL_REG (BSM_BASE + 0x000) /* ctl and status */
+#define BSM_WR_MEM_SRC_REG (BSM_BASE + 0x004) /* source in BSM mem */
+#define BSM_WR_MEM_DST_REG (BSM_BASE + 0x008) /* dest in SRAM mem */
+#define BSM_WR_DWCOUNT_REG (BSM_BASE + 0x00C) /* bytes */
+#define BSM_WR_STATUS_REG (BSM_BASE + 0x010) /* bit 0: 1 == done */
/*
* Pointers and size regs for bootstrap load and data SRAM save/restore.
@@ -231,8 +231,7 @@
* Read/write, address range from LOWER_BOUND to (LOWER_BOUND + SIZE -1)
*/
#define BSM_SRAM_LOWER_BOUND (PRPH_BASE + 0x3800)
-#define BSM_SRAM_SIZE (1024) /* bytes */
-
+#define BSM_SRAM_SIZE (1024) /* bytes */
/* 3945 Tx scheduler registers */
#define ALM_SCD_BASE (PRPH_BASE + 0x2E00)
@@ -255,7 +254,7 @@
* but one DMA channel may take input from several queues.
*
* Tx DMA FIFOs have dedicated purposes. For 4965, they are used as follows
- * (cf. default_queue_to_tx_fifo in iwl-4965.c):
+ * (cf. default_queue_to_tx_fifo in 4965.c):
*
* 0 -- EDCA BK (background) frames, lowest priority
* 1 -- EDCA BE (best effort) frames, normal priority
@@ -274,20 +273,20 @@
* The driver sets up each queue to work in one of two modes:
*
* 1) Scheduler-Ack, in which the scheduler automatically supports a
- * block-ack (BA) window of up to 64 TFDs. In this mode, each queue
+ * block-ack (BA) win of up to 64 TFDs. In this mode, each queue
* contains TFDs for a unique combination of Recipient Address (RA)
* and Traffic Identifier (TID), that is, traffic of a given
* Quality-Of-Service (QOS) priority, destined for a single station.
*
* In scheduler-ack mode, the scheduler keeps track of the Tx status of
- * each frame within the BA window, including whether it's been transmitted,
+ * each frame within the BA win, including whether it's been transmitted,
* and whether it's been acknowledged by the receiving station. The device
* automatically processes block-acks received from the receiving STA,
* and reschedules un-acked frames to be retransmitted (successful
* Tx completion may end up being out-of-order).
*
* The driver must maintain the queue's Byte Count table in host DRAM
- * (struct iwl4965_sched_queue_byte_cnt_tbl) for this mode.
+ * (struct il4965_sched_queue_byte_cnt_tbl) for this mode.
* This mode does not support fragmentation.
*
* 2) FIFO (a.k.a. non-Scheduler-ACK), in which each TFD is processed in order.
@@ -316,34 +315,34 @@
*/
/**
- * Max Tx window size is the max number of contiguous TFDs that the scheduler
+ * Max Tx win size is the max number of contiguous TFDs that the scheduler
* can keep track of at one time when creating block-ack chains of frames.
* Note that "64" matches the number of ack bits in a block-ack packet.
* Driver should use SCD_WIN_SIZE and SCD_FRAME_LIMIT values to initialize
- * IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) values.
+ * IL49_SCD_CONTEXT_QUEUE_OFFSET(x) values.
*/
#define SCD_WIN_SIZE 64
#define SCD_FRAME_LIMIT 64
/* SCD registers are internal, must be accessed via HBUS_TARG_PRPH regs */
-#define IWL49_SCD_START_OFFSET 0xa02c00
+#define IL49_SCD_START_OFFSET 0xa02c00
/*
* 4965 tells driver SRAM address for internal scheduler structs via this reg.
* Value is valid only after "Alive" response from uCode.
*/
-#define IWL49_SCD_SRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x0)
+#define IL49_SCD_SRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x0)
/*
* Driver may need to update queue-empty bits after changing queue's
- * write and read pointers (indexes) during (re-)initialization (i.e. when
+ * write and read pointers (idxes) during (re-)initialization (i.e. when
* scheduler is not tracking what's happening).
* Bit fields:
* 31-16: Write mask -- 1: update empty bit, 0: don't change empty bit
* 15-00: Empty state, one for each queue -- 1: empty, 0: non-empty
* NOTE: This register is not used by Linux driver.
*/
-#define IWL49_SCD_EMPTY_BITS (IWL49_SCD_START_OFFSET + 0x4)
+#define IL49_SCD_EMPTY_BITS (IL49_SCD_START_OFFSET + 0x4)
/*
* Physical base address of array of byte count (BC) circular buffers (CBs).
@@ -351,11 +350,11 @@
* This register points to BC CB for queue 0, must be on 1024-byte boundary.
* Others are spaced by 1024 bytes.
* Each BC CB is 2 bytes * (256 + 64) = 740 bytes, followed by 384 bytes pad.
- * (Index into a queue's BC CB) = (index into queue's TFD CB) = (SSN & 0xff).
+ * (Index into a queue's BC CB) = (idx into queue's TFD CB) = (SSN & 0xff).
* Bit fields:
* 25-00: Byte Count CB physical address [35:10], must be 1024-byte aligned.
*/
-#define IWL49_SCD_DRAM_BASE_ADDR (IWL49_SCD_START_OFFSET + 0x10)
+#define IL49_SCD_DRAM_BASE_ADDR (IL49_SCD_START_OFFSET + 0x10)
/*
* Enables any/all Tx DMA/FIFO channels.
@@ -364,23 +363,23 @@
* Bit fields:
* 7- 0: Enable (1), disable (0), one bit for each channel 0-7
*/
-#define IWL49_SCD_TXFACT (IWL49_SCD_START_OFFSET + 0x1c)
+#define IL49_SCD_TXFACT (IL49_SCD_START_OFFSET + 0x1c)
/*
- * Queue (x) Write Pointers (indexes, really!), one for each Tx queue.
+ * Queue (x) Write Pointers (idxes, really!), one for each Tx queue.
* Initialized and updated by driver as new TFDs are added to queue.
- * NOTE: If using Block Ack, index must correspond to frame's
- * Start Sequence Number; index = (SSN & 0xff)
+ * NOTE: If using Block Ack, idx must correspond to frame's
+ * Start Sequence Number; idx = (SSN & 0xff)
* NOTE: Alternative to HBUS_TARG_WRPTR, which is what Linux driver uses?
*/
-#define IWL49_SCD_QUEUE_WRPTR(x) (IWL49_SCD_START_OFFSET + 0x24 + (x) * 4)
+#define IL49_SCD_QUEUE_WRPTR(x) (IL49_SCD_START_OFFSET + 0x24 + (x) * 4)
/*
- * Queue (x) Read Pointers (indexes, really!), one for each Tx queue.
- * For FIFO mode, index indicates next frame to transmit.
- * For Scheduler-ACK mode, index indicates first frame in Tx window.
+ * Queue (x) Read Pointers (idxes, really!), one for each Tx queue.
+ * For FIFO mode, idx indicates next frame to transmit.
+ * For Scheduler-ACK mode, idx indicates first frame in Tx win.
* Initialized by driver, updated by scheduler.
*/
-#define IWL49_SCD_QUEUE_RDPTR(x) (IWL49_SCD_START_OFFSET + 0x64 + (x) * 4)
+#define IL49_SCD_QUEUE_RDPTR(x) (IL49_SCD_START_OFFSET + 0x64 + (x) * 4)
/*
* Select which queues work in chain mode (1) vs. not (0).
@@ -391,18 +390,18 @@
* NOTE: If driver sets up queue for chain mode, it should be also set up
* Scheduler-ACK mode as well, via SCD_QUEUE_STATUS_BITS(x).
*/
-#define IWL49_SCD_QUEUECHAIN_SEL (IWL49_SCD_START_OFFSET + 0xd0)
+#define IL49_SCD_QUEUECHAIN_SEL (IL49_SCD_START_OFFSET + 0xd0)
/*
* Select which queues interrupt driver when scheduler increments
- * a queue's read pointer (index).
+ * a queue's read pointer (idx).
* Bit fields:
* 31-16: Reserved
* 15-00: Interrupt enable, one bit for each queue -- 1: enabled, 0: disabled
* NOTE: This functionality is apparently a no-op; driver relies on interrupts
* from Rx queue to read Tx command responses and update Tx queues.
*/
-#define IWL49_SCD_INTERRUPT_MASK (IWL49_SCD_START_OFFSET + 0xe4)
+#define IL49_SCD_INTERRUPT_MASK (IL49_SCD_START_OFFSET + 0xe4)
/*
* Queue search status registers. One for each queue.
@@ -414,7 +413,7 @@
* Driver should init to "1" for aggregation mode, or "0" otherwise.
* 7-6: Driver should init to "0"
* 5: Window Size Left; indicates whether scheduler can request
- * another TFD, based on window size, etc. Driver should init
+ * another TFD, based on win size, etc. Driver should init
* this bit to "1" for aggregation mode, or "0" for non-agg.
* 4-1: Tx FIFO to use (range 0-7).
* 0: Queue is active (1), not active (0).
@@ -423,18 +422,18 @@
* NOTE: If enabling Scheduler-ACK mode, chain mode should also be enabled
* via SCD_QUEUECHAIN_SEL.
*/
-#define IWL49_SCD_QUEUE_STATUS_BITS(x)\
- (IWL49_SCD_START_OFFSET + 0x104 + (x) * 4)
+#define IL49_SCD_QUEUE_STATUS_BITS(x)\
+ (IL49_SCD_START_OFFSET + 0x104 + (x) * 4)
/* Bit field positions */
-#define IWL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_TXF (1)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_WSL (5)
-#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8)
+#define IL49_SCD_QUEUE_STTS_REG_POS_ACTIVE (0)
+#define IL49_SCD_QUEUE_STTS_REG_POS_TXF (1)
+#define IL49_SCD_QUEUE_STTS_REG_POS_WSL (5)
+#define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACK (8)
/* Write masks */
-#define IWL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10)
-#define IWL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00)
+#define IL49_SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN (10)
+#define IL49_SCD_QUEUE_STTS_REG_MSK (0x0007FC00)
/**
* 4965 internal SRAM structures for scheduler, shared with driver ...
@@ -460,7 +459,7 @@
* each queue's entry as follows:
*
* LS Dword bit fields:
- * 0-06: Max Tx window size for Scheduler-ACK. Driver should init to 64.
+ * 0-06: Max Tx win size for Scheduler-ACK. Driver should init to 64.
*
* MS Dword bit fields:
* 16-22: Frame limit. Driver should init to 10 (0xa).
@@ -470,14 +469,14 @@
* Init must be done after driver receives "Alive" response from 4965 uCode,
* and when setting up queue for aggregation.
*/
-#define IWL49_SCD_CONTEXT_DATA_OFFSET 0x380
-#define IWL49_SCD_CONTEXT_QUEUE_OFFSET(x) \
- (IWL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
+#define IL49_SCD_CONTEXT_DATA_OFFSET 0x380
+#define IL49_SCD_CONTEXT_QUEUE_OFFSET(x) \
+ (IL49_SCD_CONTEXT_DATA_OFFSET + ((x) * 8))
-#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0)
-#define IWL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F)
-#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
-#define IWL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
+#define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_POS (0)
+#define IL49_SCD_QUEUE_CTX_REG1_WIN_SIZE_MSK (0x0000007F)
+#define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16)
+#define IL49_SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000)
/*
* Tx Status Bitmap
@@ -486,7 +485,7 @@
* "Alive" notification from uCode. Area is used only by device itself;
* no other support (besides clearing) is required from driver.
*/
-#define IWL49_SCD_TX_STTS_BITMAP_OFFSET 0x400
+#define IL49_SCD_TX_STTS_BITMAP_OFFSET 0x400
/*
* RAxTID to queue translation mapping.
@@ -494,7 +493,7 @@
* When queue is in Scheduler-ACK mode, frames placed in a that queue must be
* for only one combination of receiver address (RA) and traffic ID (TID), i.e.
* one QOS priority level destined for one station (for this wireless link,
- * not final destination). The SCD_TRANSLATE_TABLE area provides 16 16-bit
+ * not final destination). The SCD_TRANSLATE_TBL area provides 16 16-bit
* mappings, one for each of the 16 queues. If queue is not in Scheduler-ACK
* mode, the device ignores the mapping value.
*
@@ -508,16 +507,16 @@
* must read a dword-aligned value from device SRAM, replace the 16-bit map
* value of interest, and write the dword value back into device SRAM.
*/
-#define IWL49_SCD_TRANSLATE_TBL_OFFSET 0x500
+#define IL49_SCD_TRANSLATE_TBL_OFFSET 0x500
/* Find translation table dword to read/write for given queue */
-#define IWL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
- ((IWL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
+#define IL49_SCD_TRANSLATE_TBL_OFFSET_QUEUE(x) \
+ ((IL49_SCD_TRANSLATE_TBL_OFFSET + ((x) * 2)) & 0xfffffffc)
-#define IWL_SCD_TXFIFO_POS_TID (0)
-#define IWL_SCD_TXFIFO_POS_RA (4)
-#define IWL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
+#define IL_SCD_TXFIFO_POS_TID (0)
+#define IL_SCD_TXFIFO_POS_RA (4)
+#define IL_SCD_QUEUE_RA_TID_MAP_RATID_MSK (0x01FF)
/*********************** END TX SCHEDULER *************************************/
-#endif /* __iwl_legacy_prph_h__ */
+#endif /* __il_prph_h__ */