Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * GPL LICENSE SUMMARY |
| 4 | * |
Wey-Yi Guy | 901069c | 2011-04-05 09:42:00 -0700 | [diff] [blame] | 5 | * Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved. |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of version 2 of the GNU General Public License as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 19 | * USA |
| 20 | * |
| 21 | * The full GNU General Public License is included in this distribution |
| 22 | * in the file called LICENSE.GPL. |
| 23 | * |
| 24 | * Contact Information: |
| 25 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 26 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 27 | * |
| 28 | *****************************************************************************/ |
Wey-Yi Guy | 8d80108 | 2010-03-17 13:34:36 -0700 | [diff] [blame] | 29 | #include <linux/etherdevice.h> |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 30 | #include <linux/kernel.h> |
| 31 | #include <linux/module.h> |
| 32 | #include <linux/init.h> |
| 33 | #include <linux/sched.h> |
| 34 | |
| 35 | #include "iwl-dev.h" |
| 36 | #include "iwl-core.h" |
| 37 | #include "iwl-io.h" |
| 38 | #include "iwl-helpers.h" |
| 39 | #include "iwl-agn-hw.h" |
| 40 | #include "iwl-agn.h" |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 41 | #include "iwl-sta.h" |
Emmanuel Grumbach | bdfbf09 | 2011-07-08 08:46:16 -0700 | [diff] [blame] | 42 | #include "iwl-trans.h" |
Emmanuel Grumbach | 48f20d3 | 2011-08-25 23:10:36 -0700 | [diff] [blame] | 43 | #include "iwl-shared.h" |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 44 | |
Wey-Yi Guy | 898dade | 2010-09-20 09:12:33 -0700 | [diff] [blame] | 45 | static inline u32 iwlagn_get_scd_ssn(struct iwlagn_tx_resp *tx_resp) |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 46 | { |
| 47 | return le32_to_cpup((__le32 *)&tx_resp->status + |
| 48 | tx_resp->frame_count) & MAX_SN; |
| 49 | } |
| 50 | |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 51 | static void iwlagn_count_tx_err_status(struct iwl_priv *priv, u16 status) |
| 52 | { |
| 53 | status &= TX_STATUS_MSK; |
| 54 | |
| 55 | switch (status) { |
| 56 | case TX_STATUS_POSTPONE_DELAY: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 57 | priv->reply_tx_stats.pp_delay++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 58 | break; |
| 59 | case TX_STATUS_POSTPONE_FEW_BYTES: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 60 | priv->reply_tx_stats.pp_few_bytes++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 61 | break; |
| 62 | case TX_STATUS_POSTPONE_BT_PRIO: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 63 | priv->reply_tx_stats.pp_bt_prio++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 64 | break; |
| 65 | case TX_STATUS_POSTPONE_QUIET_PERIOD: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 66 | priv->reply_tx_stats.pp_quiet_period++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 67 | break; |
| 68 | case TX_STATUS_POSTPONE_CALC_TTAK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 69 | priv->reply_tx_stats.pp_calc_ttak++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 70 | break; |
| 71 | case TX_STATUS_FAIL_INTERNAL_CROSSED_RETRY: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 72 | priv->reply_tx_stats.int_crossed_retry++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 73 | break; |
| 74 | case TX_STATUS_FAIL_SHORT_LIMIT: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 75 | priv->reply_tx_stats.short_limit++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 76 | break; |
| 77 | case TX_STATUS_FAIL_LONG_LIMIT: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 78 | priv->reply_tx_stats.long_limit++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 79 | break; |
| 80 | case TX_STATUS_FAIL_FIFO_UNDERRUN: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 81 | priv->reply_tx_stats.fifo_underrun++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 82 | break; |
| 83 | case TX_STATUS_FAIL_DRAIN_FLOW: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 84 | priv->reply_tx_stats.drain_flow++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 85 | break; |
| 86 | case TX_STATUS_FAIL_RFKILL_FLUSH: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 87 | priv->reply_tx_stats.rfkill_flush++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 88 | break; |
| 89 | case TX_STATUS_FAIL_LIFE_EXPIRE: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 90 | priv->reply_tx_stats.life_expire++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 91 | break; |
| 92 | case TX_STATUS_FAIL_DEST_PS: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 93 | priv->reply_tx_stats.dest_ps++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 94 | break; |
| 95 | case TX_STATUS_FAIL_HOST_ABORTED: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 96 | priv->reply_tx_stats.host_abort++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 97 | break; |
| 98 | case TX_STATUS_FAIL_BT_RETRY: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 99 | priv->reply_tx_stats.bt_retry++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 100 | break; |
| 101 | case TX_STATUS_FAIL_STA_INVALID: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 102 | priv->reply_tx_stats.sta_invalid++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 103 | break; |
| 104 | case TX_STATUS_FAIL_FRAG_DROPPED: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 105 | priv->reply_tx_stats.frag_drop++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 106 | break; |
| 107 | case TX_STATUS_FAIL_TID_DISABLE: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 108 | priv->reply_tx_stats.tid_disable++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 109 | break; |
| 110 | case TX_STATUS_FAIL_FIFO_FLUSHED: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 111 | priv->reply_tx_stats.fifo_flush++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 112 | break; |
| 113 | case TX_STATUS_FAIL_INSUFFICIENT_CF_POLL: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 114 | priv->reply_tx_stats.insuff_cf_poll++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 115 | break; |
Wey-Yi Guy | 1d27007 | 2010-09-07 12:42:20 -0700 | [diff] [blame] | 116 | case TX_STATUS_FAIL_PASSIVE_NO_RX: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 117 | priv->reply_tx_stats.fail_hw_drop++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 118 | break; |
Wey-Yi Guy | 1d27007 | 2010-09-07 12:42:20 -0700 | [diff] [blame] | 119 | case TX_STATUS_FAIL_NO_BEACON_ON_RADAR: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 120 | priv->reply_tx_stats.sta_color_mismatch++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 121 | break; |
| 122 | default: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 123 | priv->reply_tx_stats.unknown++; |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 124 | break; |
| 125 | } |
| 126 | } |
| 127 | |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 128 | static void iwlagn_count_agg_tx_err_status(struct iwl_priv *priv, u16 status) |
| 129 | { |
| 130 | status &= AGG_TX_STATUS_MSK; |
| 131 | |
| 132 | switch (status) { |
| 133 | case AGG_TX_STATE_UNDERRUN_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 134 | priv->reply_agg_tx_stats.underrun++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 135 | break; |
| 136 | case AGG_TX_STATE_BT_PRIO_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 137 | priv->reply_agg_tx_stats.bt_prio++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 138 | break; |
| 139 | case AGG_TX_STATE_FEW_BYTES_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 140 | priv->reply_agg_tx_stats.few_bytes++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 141 | break; |
| 142 | case AGG_TX_STATE_ABORT_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 143 | priv->reply_agg_tx_stats.abort++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 144 | break; |
| 145 | case AGG_TX_STATE_LAST_SENT_TTL_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 146 | priv->reply_agg_tx_stats.last_sent_ttl++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 147 | break; |
| 148 | case AGG_TX_STATE_LAST_SENT_TRY_CNT_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 149 | priv->reply_agg_tx_stats.last_sent_try++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 150 | break; |
| 151 | case AGG_TX_STATE_LAST_SENT_BT_KILL_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 152 | priv->reply_agg_tx_stats.last_sent_bt_kill++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 153 | break; |
| 154 | case AGG_TX_STATE_SCD_QUERY_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 155 | priv->reply_agg_tx_stats.scd_query++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 156 | break; |
| 157 | case AGG_TX_STATE_TEST_BAD_CRC32_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 158 | priv->reply_agg_tx_stats.bad_crc32++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 159 | break; |
| 160 | case AGG_TX_STATE_RESPONSE_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 161 | priv->reply_agg_tx_stats.response++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 162 | break; |
| 163 | case AGG_TX_STATE_DUMP_TX_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 164 | priv->reply_agg_tx_stats.dump_tx++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 165 | break; |
| 166 | case AGG_TX_STATE_DELAY_TX_MSK: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 167 | priv->reply_agg_tx_stats.delay_tx++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 168 | break; |
| 169 | default: |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 170 | priv->reply_agg_tx_stats.unknown++; |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 171 | break; |
| 172 | } |
| 173 | } |
| 174 | |
Wey-Yi Guy | 743e015 | 2010-09-04 09:00:14 -0700 | [diff] [blame] | 175 | static void iwlagn_set_tx_status(struct iwl_priv *priv, |
| 176 | struct ieee80211_tx_info *info, |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 177 | struct iwl_rxon_context *ctx, |
Wey-Yi Guy | 898dade | 2010-09-20 09:12:33 -0700 | [diff] [blame] | 178 | struct iwlagn_tx_resp *tx_resp, |
Wey-Yi Guy | 743e015 | 2010-09-04 09:00:14 -0700 | [diff] [blame] | 179 | int txq_id, bool is_agg) |
| 180 | { |
| 181 | u16 status = le16_to_cpu(tx_resp->status.status); |
| 182 | |
| 183 | info->status.rates[0].count = tx_resp->failure_frame + 1; |
| 184 | if (is_agg) |
| 185 | info->flags &= ~IEEE80211_TX_CTL_AMPDU; |
| 186 | info->flags |= iwl_tx_status_to_mac80211(status); |
| 187 | iwlagn_hwrate_to_tx_control(priv, le32_to_cpu(tx_resp->rate_n_flags), |
| 188 | info); |
Wey-Yi Guy | 91835ba | 2010-09-05 10:49:41 -0700 | [diff] [blame] | 189 | if (!iwl_is_tx_success(status)) |
| 190 | iwlagn_count_tx_err_status(priv, status); |
Wey-Yi Guy | 743e015 | 2010-09-04 09:00:14 -0700 | [diff] [blame] | 191 | |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 192 | if (status == TX_STATUS_FAIL_PASSIVE_NO_RX && |
| 193 | iwl_is_associated_ctx(ctx) && ctx->vif && |
| 194 | ctx->vif->type == NL80211_IFTYPE_STATION) { |
| 195 | ctx->last_tx_rejected = true; |
| 196 | iwl_stop_queue(priv, &priv->txq[txq_id]); |
| 197 | } |
| 198 | |
Wey-Yi Guy | 743e015 | 2010-09-04 09:00:14 -0700 | [diff] [blame] | 199 | IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x) rate_n_flags " |
| 200 | "0x%x retries %d\n", |
| 201 | txq_id, |
| 202 | iwl_get_tx_fail_reason(status), status, |
| 203 | le32_to_cpu(tx_resp->rate_n_flags), |
| 204 | tx_resp->failure_frame); |
| 205 | } |
| 206 | |
Wey-Yi Guy | e1b3fa0 | 2010-09-05 10:49:43 -0700 | [diff] [blame] | 207 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 208 | #define AGG_TX_STATE_FAIL(x) case AGG_TX_STATE_ ## x: return #x |
| 209 | |
| 210 | const char *iwl_get_agg_tx_fail_reason(u16 status) |
| 211 | { |
| 212 | status &= AGG_TX_STATUS_MSK; |
| 213 | switch (status) { |
| 214 | case AGG_TX_STATE_TRANSMITTED: |
| 215 | return "SUCCESS"; |
| 216 | AGG_TX_STATE_FAIL(UNDERRUN_MSK); |
| 217 | AGG_TX_STATE_FAIL(BT_PRIO_MSK); |
| 218 | AGG_TX_STATE_FAIL(FEW_BYTES_MSK); |
| 219 | AGG_TX_STATE_FAIL(ABORT_MSK); |
| 220 | AGG_TX_STATE_FAIL(LAST_SENT_TTL_MSK); |
| 221 | AGG_TX_STATE_FAIL(LAST_SENT_TRY_CNT_MSK); |
| 222 | AGG_TX_STATE_FAIL(LAST_SENT_BT_KILL_MSK); |
| 223 | AGG_TX_STATE_FAIL(SCD_QUERY_MSK); |
| 224 | AGG_TX_STATE_FAIL(TEST_BAD_CRC32_MSK); |
| 225 | AGG_TX_STATE_FAIL(RESPONSE_MSK); |
| 226 | AGG_TX_STATE_FAIL(DUMP_TX_MSK); |
| 227 | AGG_TX_STATE_FAIL(DELAY_TX_MSK); |
| 228 | } |
| 229 | |
| 230 | return "UNKNOWN"; |
| 231 | } |
| 232 | #endif /* CONFIG_IWLWIFI_DEBUG */ |
| 233 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 234 | static int iwlagn_tx_status_reply_tx(struct iwl_priv *priv, |
| 235 | struct iwl_ht_agg *agg, |
Wey-Yi Guy | 898dade | 2010-09-20 09:12:33 -0700 | [diff] [blame] | 236 | struct iwlagn_tx_resp *tx_resp, |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 237 | int txq_id, u16 start_idx) |
| 238 | { |
| 239 | u16 status; |
| 240 | struct agg_tx_status *frame_status = &tx_resp->status; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 241 | struct ieee80211_hdr *hdr = NULL; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 242 | int i, sh, idx; |
| 243 | u16 seq; |
| 244 | |
| 245 | if (agg->wait_for_ba) |
| 246 | IWL_DEBUG_TX_REPLY(priv, "got tx response w/o block-ack\n"); |
| 247 | |
| 248 | agg->frame_count = tx_resp->frame_count; |
| 249 | agg->start_idx = start_idx; |
Wey-Yi Guy | 743e015 | 2010-09-04 09:00:14 -0700 | [diff] [blame] | 250 | agg->rate_n_flags = le32_to_cpu(tx_resp->rate_n_flags); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 251 | agg->bitmap = 0; |
| 252 | |
| 253 | /* # frames attempted by Tx command */ |
| 254 | if (agg->frame_count == 1) { |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 255 | struct iwl_tx_info *txb; |
| 256 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 257 | /* Only one frame was attempted; no block-ack will arrive */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 258 | idx = start_idx; |
| 259 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 260 | IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, StartIdx=%d idx=%d\n", |
| 261 | agg->frame_count, agg->start_idx, idx); |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 262 | txb = &priv->txq[txq_id].txb[idx]; |
| 263 | iwlagn_set_tx_status(priv, IEEE80211_SKB_CB(txb->skb), |
| 264 | txb->ctx, tx_resp, txq_id, true); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 265 | agg->wait_for_ba = 0; |
| 266 | } else { |
| 267 | /* Two or more frames were attempted; expect block-ack */ |
| 268 | u64 bitmap = 0; |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 269 | |
| 270 | /* |
| 271 | * Start is the lowest frame sent. It may not be the first |
| 272 | * frame in the batch; we figure this out dynamically during |
| 273 | * the following loop. |
| 274 | */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 275 | int start = agg->start_idx; |
| 276 | |
| 277 | /* Construct bit-map of pending frames within Tx window */ |
| 278 | for (i = 0; i < agg->frame_count; i++) { |
| 279 | u16 sc; |
| 280 | status = le16_to_cpu(frame_status[i].status); |
| 281 | seq = le16_to_cpu(frame_status[i].sequence); |
| 282 | idx = SEQ_TO_INDEX(seq); |
| 283 | txq_id = SEQ_TO_QUEUE(seq); |
| 284 | |
Wey-Yi Guy | 814665f | 2010-09-05 10:49:44 -0700 | [diff] [blame] | 285 | if (status & AGG_TX_STATUS_MSK) |
| 286 | iwlagn_count_agg_tx_err_status(priv, status); |
| 287 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 288 | if (status & (AGG_TX_STATE_FEW_BYTES_MSK | |
| 289 | AGG_TX_STATE_ABORT_MSK)) |
| 290 | continue; |
| 291 | |
| 292 | IWL_DEBUG_TX_REPLY(priv, "FrameCnt = %d, txq_id=%d idx=%d\n", |
| 293 | agg->frame_count, txq_id, idx); |
Wey-Yi Guy | e1b3fa0 | 2010-09-05 10:49:43 -0700 | [diff] [blame] | 294 | IWL_DEBUG_TX_REPLY(priv, "status %s (0x%08x), " |
| 295 | "try-count (0x%08x)\n", |
| 296 | iwl_get_agg_tx_fail_reason(status), |
| 297 | status & AGG_TX_STATUS_MSK, |
| 298 | status & AGG_TX_TRY_MSK); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 299 | |
| 300 | hdr = iwl_tx_queue_get_hdr(priv, txq_id, idx); |
| 301 | if (!hdr) { |
| 302 | IWL_ERR(priv, |
| 303 | "BUG_ON idx doesn't point to valid skb" |
| 304 | " idx=%d, txq_id=%d\n", idx, txq_id); |
| 305 | return -1; |
| 306 | } |
| 307 | |
| 308 | sc = le16_to_cpu(hdr->seq_ctrl); |
| 309 | if (idx != (SEQ_TO_SN(sc) & 0xff)) { |
| 310 | IWL_ERR(priv, |
| 311 | "BUG_ON idx doesn't match seq control" |
| 312 | " idx=%d, seq_idx=%d, seq=%d\n", |
| 313 | idx, SEQ_TO_SN(sc), |
| 314 | hdr->seq_ctrl); |
| 315 | return -1; |
| 316 | } |
| 317 | |
| 318 | IWL_DEBUG_TX_REPLY(priv, "AGG Frame i=%d idx %d seq=%d\n", |
| 319 | i, idx, SEQ_TO_SN(sc)); |
| 320 | |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 321 | /* |
| 322 | * sh -> how many frames ahead of the starting frame is |
| 323 | * the current one? |
| 324 | * |
| 325 | * Note that all frames sent in the batch must be in a |
| 326 | * 64-frame window, so this number should be in [0,63]. |
| 327 | * If outside of this window, then we've found a new |
| 328 | * "first" frame in the batch and need to change start. |
| 329 | */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 330 | sh = idx - start; |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 331 | |
| 332 | /* |
| 333 | * If >= 64, out of window. start must be at the front |
| 334 | * of the circular buffer, idx must be near the end of |
| 335 | * the buffer, and idx is the new "first" frame. Shift |
| 336 | * the indices around. |
| 337 | */ |
| 338 | if (sh >= 64) { |
| 339 | /* Shift bitmap by start - idx, wrapped */ |
| 340 | sh = 0x100 - idx + start; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 341 | bitmap = bitmap << sh; |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 342 | /* Now idx is the new start so sh = 0 */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 343 | sh = 0; |
| 344 | start = idx; |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 345 | /* |
| 346 | * If <= -64 then wraps the 256-pkt circular buffer |
| 347 | * (e.g., start = 255 and idx = 0, sh should be 1) |
| 348 | */ |
| 349 | } else if (sh <= -64) { |
| 350 | sh = 0x100 - start + idx; |
| 351 | /* |
| 352 | * If < 0 but > -64, out of window. idx is before start |
| 353 | * but not wrapped. Shift the indices around. |
| 354 | */ |
| 355 | } else if (sh < 0) { |
| 356 | /* Shift by how far start is ahead of idx */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 357 | sh = start - idx; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 358 | bitmap = bitmap << sh; |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 359 | /* Now idx is the new start so sh = 0 */ |
| 360 | start = idx; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 361 | sh = 0; |
| 362 | } |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 363 | /* Sequence number start + sh was sent in this batch */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 364 | bitmap |= 1ULL << sh; |
| 365 | IWL_DEBUG_TX_REPLY(priv, "start=%d bitmap=0x%llx\n", |
| 366 | start, (unsigned long long)bitmap); |
| 367 | } |
| 368 | |
Daniel Halperin | f668da2 | 2010-05-25 10:22:49 -0700 | [diff] [blame] | 369 | /* |
| 370 | * Store the bitmap and possibly the new start, if we wrapped |
| 371 | * the buffer above |
| 372 | */ |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 373 | agg->bitmap = bitmap; |
| 374 | agg->start_idx = start; |
| 375 | IWL_DEBUG_TX_REPLY(priv, "Frames %d start_idx=%d bitmap=0x%llx\n", |
| 376 | agg->frame_count, agg->start_idx, |
| 377 | (unsigned long long)agg->bitmap); |
| 378 | |
| 379 | if (bitmap) |
| 380 | agg->wait_for_ba = 1; |
| 381 | } |
| 382 | return 0; |
| 383 | } |
| 384 | |
Wey-Yi Guy | 04569cb | 2010-03-31 17:57:28 -0700 | [diff] [blame] | 385 | void iwl_check_abort_status(struct iwl_priv *priv, |
| 386 | u8 frame_count, u32 status) |
| 387 | { |
| 388 | if (frame_count == 1 && status == TX_STATUS_FAIL_RFKILL_FLUSH) { |
Wey-Yi Guy | 6555063 | 2010-06-24 13:18:35 -0700 | [diff] [blame] | 389 | IWL_ERR(priv, "Tx flush command to flush out all frames\n"); |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 390 | if (!test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
Emmanuel Grumbach | 74e28e4 | 2011-08-25 23:10:41 -0700 | [diff] [blame] | 391 | queue_work(priv->shrd->workqueue, &priv->tx_flush); |
Wey-Yi Guy | 04569cb | 2010-03-31 17:57:28 -0700 | [diff] [blame] | 392 | } |
| 393 | } |
| 394 | |
Emmanuel Grumbach | 8d30119 | 2011-07-03 15:45:34 +0300 | [diff] [blame] | 395 | void iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb) |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 396 | { |
| 397 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| 398 | u16 sequence = le16_to_cpu(pkt->hdr.sequence); |
| 399 | int txq_id = SEQ_TO_QUEUE(sequence); |
| 400 | int index = SEQ_TO_INDEX(sequence); |
| 401 | struct iwl_tx_queue *txq = &priv->txq[txq_id]; |
| 402 | struct ieee80211_tx_info *info; |
Wey-Yi Guy | 898dade | 2010-09-20 09:12:33 -0700 | [diff] [blame] | 403 | struct iwlagn_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; |
Johannes Berg | c8ac61c | 2011-07-15 13:23:45 -0700 | [diff] [blame] | 404 | struct ieee80211_hdr *hdr; |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 405 | struct iwl_tx_info *txb; |
| 406 | u32 status = le16_to_cpu(tx_resp->status.status); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 407 | int tid; |
| 408 | int sta_id; |
| 409 | int freed; |
Reinette Chatre | 9c5ac09 | 2010-05-05 02:26:06 -0700 | [diff] [blame] | 410 | unsigned long flags; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 411 | |
| 412 | if ((index >= txq->q.n_bd) || (iwl_queue_used(&txq->q, index) == 0)) { |
Daniel Halperin | 2e5d04d | 2011-05-27 08:40:28 -0700 | [diff] [blame] | 413 | IWL_ERR(priv, "%s: Read index for DMA queue txq_id (%d) " |
| 414 | "index %d is out of range [0-%d] %d %d\n", __func__, |
| 415 | txq_id, index, txq->q.n_bd, txq->q.write_ptr, |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 416 | txq->q.read_ptr); |
| 417 | return; |
| 418 | } |
| 419 | |
Stanislaw Gruszka | 22de94d | 2010-12-03 15:41:48 +0100 | [diff] [blame] | 420 | txq->time_stamp = jiffies; |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 421 | txb = &txq->txb[txq->q.read_ptr]; |
| 422 | info = IEEE80211_SKB_CB(txb->skb); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 423 | memset(&info->status, 0, sizeof(info->status)); |
| 424 | |
Wey-Yi Guy | 898dade | 2010-09-20 09:12:33 -0700 | [diff] [blame] | 425 | tid = (tx_resp->ra_tid & IWLAGN_TX_RES_TID_MSK) >> |
| 426 | IWLAGN_TX_RES_TID_POS; |
| 427 | sta_id = (tx_resp->ra_tid & IWLAGN_TX_RES_RA_MSK) >> |
| 428 | IWLAGN_TX_RES_RA_POS; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 429 | |
Emmanuel Grumbach | f39c95e | 2011-08-25 23:10:47 -0700 | [diff] [blame] | 430 | spin_lock_irqsave(&priv->shrd->sta_lock, flags); |
Johannes Berg | c8ac61c | 2011-07-15 13:23:45 -0700 | [diff] [blame] | 431 | |
| 432 | hdr = (void *)txb->skb->data; |
| 433 | if (!ieee80211_is_data_qos(hdr->frame_control)) |
| 434 | priv->last_seq_ctl = tx_resp->seq_ctl; |
| 435 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 436 | if (txq->sched_retry) { |
| 437 | const u32 scd_ssn = iwlagn_get_scd_ssn(tx_resp); |
Reinette Chatre | 9c5ac09 | 2010-05-05 02:26:06 -0700 | [diff] [blame] | 438 | struct iwl_ht_agg *agg; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 439 | |
| 440 | agg = &priv->stations[sta_id].tid[tid].agg; |
Wey-Yi Guy | c6c996b | 2010-08-23 07:57:06 -0700 | [diff] [blame] | 441 | /* |
| 442 | * If the BT kill count is non-zero, we'll get this |
| 443 | * notification again. |
| 444 | */ |
| 445 | if (tx_resp->bt_kill_count && tx_resp->frame_count == 1 && |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 446 | priv->cfg->bt_params && |
| 447 | priv->cfg->bt_params->advanced_bt_coexist) { |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 448 | IWL_DEBUG_COEX(priv, "receive reply tx with bt_kill\n"); |
Wey-Yi Guy | c6c996b | 2010-08-23 07:57:06 -0700 | [diff] [blame] | 449 | } |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 450 | iwlagn_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); |
| 451 | |
| 452 | /* check if BAR is needed */ |
| 453 | if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) |
| 454 | info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; |
| 455 | |
| 456 | if (txq->q.read_ptr != (scd_ssn & 0xff)) { |
| 457 | index = iwl_queue_dec_wrap(scd_ssn & 0xff, txq->q.n_bd); |
| 458 | IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim " |
| 459 | "scd_ssn=%d idx=%d txq=%d swq=%d\n", |
| 460 | scd_ssn , index, txq_id, txq->swq_id); |
| 461 | |
Wey-Yi Guy | 74bcdb3 | 2010-03-17 13:34:34 -0700 | [diff] [blame] | 462 | freed = iwlagn_tx_queue_reclaim(priv, txq_id, index); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 463 | iwl_free_tfds_in_queue(priv, sta_id, tid, freed); |
| 464 | |
| 465 | if (priv->mac80211_registered && |
| 466 | (iwl_queue_space(&txq->q) > txq->q.low_mark) && |
Johannes Berg | 4bea9b9 | 2010-11-10 18:25:43 -0800 | [diff] [blame] | 467 | (agg->state != IWL_EMPTYING_HW_QUEUE_DELBA)) |
Johannes Berg | 549a04e | 2010-11-10 18:25:44 -0800 | [diff] [blame] | 468 | iwl_wake_queue(priv, txq); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 469 | } |
| 470 | } else { |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 471 | iwlagn_set_tx_status(priv, info, txb->ctx, tx_resp, |
| 472 | txq_id, false); |
Wey-Yi Guy | 74bcdb3 | 2010-03-17 13:34:34 -0700 | [diff] [blame] | 473 | freed = iwlagn_tx_queue_reclaim(priv, txq_id, index); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 474 | iwl_free_tfds_in_queue(priv, sta_id, tid, freed); |
| 475 | |
| 476 | if (priv->mac80211_registered && |
Garen Tamrazian | 68b9931 | 2011-03-30 02:29:32 -0700 | [diff] [blame] | 477 | iwl_queue_space(&txq->q) > txq->q.low_mark && |
| 478 | status != TX_STATUS_FAIL_PASSIVE_NO_RX) |
Johannes Berg | 549a04e | 2010-11-10 18:25:44 -0800 | [diff] [blame] | 479 | iwl_wake_queue(priv, txq); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 480 | } |
| 481 | |
Wey-Yi Guy | 74bcdb3 | 2010-03-17 13:34:34 -0700 | [diff] [blame] | 482 | iwlagn_txq_check_empty(priv, sta_id, tid, txq_id); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 483 | |
Wey-Yi Guy | 04569cb | 2010-03-31 17:57:28 -0700 | [diff] [blame] | 484 | iwl_check_abort_status(priv, tx_resp->frame_count, status); |
Emmanuel Grumbach | f39c95e | 2011-08-25 23:10:47 -0700 | [diff] [blame] | 485 | spin_unlock_irqrestore(&priv->shrd->sta_lock, flags); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 486 | } |
| 487 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 488 | int iwlagn_hw_valid_rtc_data_addr(u32 addr) |
| 489 | { |
| 490 | return (addr >= IWLAGN_RTC_DATA_LOWER_BOUND) && |
| 491 | (addr < IWLAGN_RTC_DATA_UPPER_BOUND); |
| 492 | } |
| 493 | |
| 494 | int iwlagn_send_tx_power(struct iwl_priv *priv) |
| 495 | { |
Wey-Yi Guy | ab63c68 | 2010-09-20 09:12:31 -0700 | [diff] [blame] | 496 | struct iwlagn_tx_power_dbm_cmd tx_power_cmd; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 497 | u8 tx_ant_cfg_cmd; |
| 498 | |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 499 | if (WARN_ONCE(test_bit(STATUS_SCAN_HW, &priv->shrd->status), |
Stanislaw Gruszka | 4beeba7 | 2010-10-25 10:34:50 +0200 | [diff] [blame] | 500 | "TX Power requested while scanning!\n")) |
| 501 | return -EAGAIN; |
| 502 | |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 503 | /* half dBm need to multiply */ |
| 504 | tx_power_cmd.global_lmt = (s8)(2 * priv->tx_power_user_lmt); |
| 505 | |
| 506 | if (priv->tx_power_lmt_in_half_dbm && |
| 507 | priv->tx_power_lmt_in_half_dbm < tx_power_cmd.global_lmt) { |
| 508 | /* |
| 509 | * For the newer devices which using enhanced/extend tx power |
| 510 | * table in EEPROM, the format is in half dBm. driver need to |
| 511 | * convert to dBm format before report to mac80211. |
| 512 | * By doing so, there is a possibility of 1/2 dBm resolution |
| 513 | * lost. driver will perform "round-up" operation before |
| 514 | * reporting, but it will cause 1/2 dBm tx power over the |
| 515 | * regulatory limit. Perform the checking here, if the |
| 516 | * "tx_power_user_lmt" is higher than EEPROM value (in |
| 517 | * half-dBm format), lower the tx power based on EEPROM |
| 518 | */ |
| 519 | tx_power_cmd.global_lmt = priv->tx_power_lmt_in_half_dbm; |
| 520 | } |
Wey-Yi Guy | ab63c68 | 2010-09-20 09:12:31 -0700 | [diff] [blame] | 521 | tx_power_cmd.flags = IWLAGN_TX_POWER_NO_CLOSED; |
| 522 | tx_power_cmd.srv_chan_lmt = IWLAGN_TX_POWER_AUTO; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 523 | |
| 524 | if (IWL_UCODE_API(priv->ucode_ver) == 1) |
| 525 | tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD_V1; |
| 526 | else |
| 527 | tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD; |
| 528 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 529 | return iwl_trans_send_cmd_pdu(trans(priv), tx_ant_cfg_cmd, CMD_SYNC, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 530 | sizeof(tx_power_cmd), &tx_power_cmd); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 531 | } |
| 532 | |
| 533 | void iwlagn_temperature(struct iwl_priv *priv) |
| 534 | { |
Fry, Donald H | f8f79a5 | 2011-02-25 09:44:48 -0800 | [diff] [blame] | 535 | /* store temperature from correct statistics (in Celsius) */ |
Johannes Berg | 0da0e5b | 2011-04-08 08:14:56 -0700 | [diff] [blame] | 536 | priv->temperature = le32_to_cpu(priv->statistics.common.temperature); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 537 | iwl_tt_handler(priv); |
| 538 | } |
| 539 | |
| 540 | u16 iwlagn_eeprom_calib_version(struct iwl_priv *priv) |
| 541 | { |
| 542 | struct iwl_eeprom_calib_hdr { |
| 543 | u8 version; |
| 544 | u8 pa_type; |
| 545 | u16 voltage; |
| 546 | } *hdr; |
| 547 | |
| 548 | hdr = (struct iwl_eeprom_calib_hdr *)iwl_eeprom_query_addr(priv, |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 549 | EEPROM_CALIB_ALL); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 550 | return hdr->version; |
| 551 | |
| 552 | } |
| 553 | |
| 554 | /* |
| 555 | * EEPROM |
| 556 | */ |
| 557 | static u32 eeprom_indirect_address(const struct iwl_priv *priv, u32 address) |
| 558 | { |
| 559 | u16 offset = 0; |
| 560 | |
| 561 | if ((address & INDIRECT_ADDRESS) == 0) |
| 562 | return address; |
| 563 | |
| 564 | switch (address & INDIRECT_TYPE_MSK) { |
| 565 | case INDIRECT_HOST: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 566 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_HOST); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 567 | break; |
| 568 | case INDIRECT_GENERAL: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 569 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_GENERAL); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 570 | break; |
| 571 | case INDIRECT_REGULATORY: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 572 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_REGULATORY); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 573 | break; |
Johannes Berg | 8d6748c | 2010-12-09 09:30:14 -0800 | [diff] [blame] | 574 | case INDIRECT_TXP_LIMIT: |
| 575 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT); |
| 576 | break; |
| 577 | case INDIRECT_TXP_LIMIT_SIZE: |
| 578 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_TXP_LIMIT_SIZE); |
| 579 | break; |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 580 | case INDIRECT_CALIBRATION: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 581 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_CALIBRATION); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 582 | break; |
| 583 | case INDIRECT_PROCESS_ADJST: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 584 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_PROCESS_ADJST); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 585 | break; |
| 586 | case INDIRECT_OTHERS: |
Wey-Yi Guy | 7944f8e | 2010-04-06 21:10:33 -0700 | [diff] [blame] | 587 | offset = iwl_eeprom_query16(priv, EEPROM_LINK_OTHERS); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 588 | break; |
| 589 | default: |
| 590 | IWL_ERR(priv, "illegal indirect type: 0x%X\n", |
| 591 | address & INDIRECT_TYPE_MSK); |
| 592 | break; |
| 593 | } |
| 594 | |
| 595 | /* translate the offset from words to byte */ |
| 596 | return (address & ADDRESS_MSK) + (offset << 1); |
| 597 | } |
| 598 | |
Fry, Donald H | 70e3e8a | 2011-07-08 08:46:19 -0700 | [diff] [blame] | 599 | const u8 *iwl_eeprom_query_addr(const struct iwl_priv *priv, size_t offset) |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 600 | { |
| 601 | u32 address = eeprom_indirect_address(priv, offset); |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 602 | BUG_ON(address >= priv->cfg->base_params->eeprom_size); |
Wey-Yi Guy | e04ed0a | 2010-03-16 17:47:58 -0700 | [diff] [blame] | 603 | return &priv->eeprom[address]; |
| 604 | } |
Wey-Yi Guy | 348ee7cd | 2010-03-16 12:37:27 -0700 | [diff] [blame] | 605 | |
| 606 | struct iwl_mod_params iwlagn_mod_params = { |
| 607 | .amsdu_size_8K = 1, |
| 608 | .restart_fw = 1, |
Stanislaw Gruszka | b7977ff | 2011-02-28 14:33:15 +0100 | [diff] [blame] | 609 | .plcp_check = true, |
Wey-Yi Guy | b60eec9 | 2011-06-03 13:52:38 -0700 | [diff] [blame] | 610 | .bt_coex_active = true, |
Wey-Yi Guy | 3f1e5f4 | 2011-06-03 13:52:40 -0700 | [diff] [blame] | 611 | .no_sleep_autoadjust = true, |
Wey-Yi Guy | f753816 | 2011-06-11 10:00:06 -0700 | [diff] [blame] | 612 | .power_level = IWL_POWER_INDEX_1, |
Wey-Yi Guy | fee84f0d | 2011-08-25 23:10:57 -0700 | [diff] [blame^] | 613 | .bt_ch_announce = true, |
Emmanuel Grumbach | 48f20d3 | 2011-08-25 23:10:36 -0700 | [diff] [blame] | 614 | .wanted_ucode_alternative = 1, |
Wey-Yi Guy | dd5b6d0 | 2011-08-25 23:10:55 -0700 | [diff] [blame] | 615 | .auto_agg = true, |
Wey-Yi Guy | 348ee7cd | 2010-03-16 12:37:27 -0700 | [diff] [blame] | 616 | /* the rest are 0 by default */ |
| 617 | }; |
Wey-Yi Guy | 74bcdb3 | 2010-03-17 13:34:34 -0700 | [diff] [blame] | 618 | |
Wey-Yi Guy | 8d80108 | 2010-03-17 13:34:36 -0700 | [diff] [blame] | 619 | int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band) |
| 620 | { |
| 621 | int idx = 0; |
| 622 | int band_offset = 0; |
| 623 | |
| 624 | /* HT rate format: mac80211 wants an MCS number, which is just LSB */ |
| 625 | if (rate_n_flags & RATE_MCS_HT_MSK) { |
| 626 | idx = (rate_n_flags & 0xff); |
| 627 | return idx; |
| 628 | /* Legacy rate format, search for match in table */ |
| 629 | } else { |
| 630 | if (band == IEEE80211_BAND_5GHZ) |
| 631 | band_offset = IWL_FIRST_OFDM_RATE; |
| 632 | for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) |
| 633 | if (iwl_rates[idx].plcp == (rate_n_flags & 0xFF)) |
| 634 | return idx - band_offset; |
| 635 | } |
| 636 | |
| 637 | return -1; |
| 638 | } |
| 639 | |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 640 | static int iwl_get_single_channel_for_scan(struct iwl_priv *priv, |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 641 | struct ieee80211_vif *vif, |
| 642 | enum ieee80211_band band, |
| 643 | struct iwl_scan_channel *scan_ch) |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 644 | { |
| 645 | const struct ieee80211_supported_band *sband; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 646 | u16 passive_dwell = 0; |
| 647 | u16 active_dwell = 0; |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 648 | int added = 0; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 649 | u16 channel = 0; |
| 650 | |
| 651 | sband = iwl_get_hw_mode(priv, band); |
| 652 | if (!sband) { |
| 653 | IWL_ERR(priv, "invalid band\n"); |
| 654 | return added; |
| 655 | } |
| 656 | |
| 657 | active_dwell = iwl_get_active_dwell_time(priv, band, 0); |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 658 | passive_dwell = iwl_get_passive_dwell_time(priv, band, vif); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 659 | |
| 660 | if (passive_dwell <= active_dwell) |
| 661 | passive_dwell = active_dwell + 1; |
| 662 | |
Abhijeet Kolekar | 1402364 | 2010-06-02 21:15:10 -0700 | [diff] [blame] | 663 | channel = iwl_get_single_channel_number(priv, band); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 664 | if (channel) { |
| 665 | scan_ch->channel = cpu_to_le16(channel); |
| 666 | scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; |
| 667 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
| 668 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); |
| 669 | /* Set txpower levels to defaults */ |
| 670 | scan_ch->dsp_atten = 110; |
| 671 | if (band == IEEE80211_BAND_5GHZ) |
| 672 | scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 673 | else |
| 674 | scan_ch->tx_gain = ((1 << 5) | (5 << 3)); |
| 675 | added++; |
| 676 | } else |
| 677 | IWL_ERR(priv, "no valid channel found\n"); |
| 678 | return added; |
| 679 | } |
| 680 | |
| 681 | static int iwl_get_channels_for_scan(struct iwl_priv *priv, |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 682 | struct ieee80211_vif *vif, |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 683 | enum ieee80211_band band, |
| 684 | u8 is_active, u8 n_probes, |
| 685 | struct iwl_scan_channel *scan_ch) |
| 686 | { |
| 687 | struct ieee80211_channel *chan; |
| 688 | const struct ieee80211_supported_band *sband; |
| 689 | const struct iwl_channel_info *ch_info; |
| 690 | u16 passive_dwell = 0; |
| 691 | u16 active_dwell = 0; |
| 692 | int added, i; |
| 693 | u16 channel; |
| 694 | |
| 695 | sband = iwl_get_hw_mode(priv, band); |
| 696 | if (!sband) |
| 697 | return 0; |
| 698 | |
| 699 | active_dwell = iwl_get_active_dwell_time(priv, band, n_probes); |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 700 | passive_dwell = iwl_get_passive_dwell_time(priv, band, vif); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 701 | |
| 702 | if (passive_dwell <= active_dwell) |
| 703 | passive_dwell = active_dwell + 1; |
| 704 | |
| 705 | for (i = 0, added = 0; i < priv->scan_request->n_channels; i++) { |
| 706 | chan = priv->scan_request->channels[i]; |
| 707 | |
| 708 | if (chan->band != band) |
| 709 | continue; |
| 710 | |
Shanyu Zhao | 81e9543 | 2010-07-28 13:40:27 -0700 | [diff] [blame] | 711 | channel = chan->hw_value; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 712 | scan_ch->channel = cpu_to_le16(channel); |
| 713 | |
| 714 | ch_info = iwl_get_channel_info(priv, band, channel); |
| 715 | if (!is_channel_valid(ch_info)) { |
| 716 | IWL_DEBUG_SCAN(priv, "Channel %d is INVALID for this band.\n", |
| 717 | channel); |
| 718 | continue; |
| 719 | } |
| 720 | |
| 721 | if (!is_active || is_channel_passive(ch_info) || |
| 722 | (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) |
| 723 | scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; |
| 724 | else |
| 725 | scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; |
| 726 | |
| 727 | if (n_probes) |
| 728 | scan_ch->type |= IWL_SCAN_PROBE_MASK(n_probes); |
| 729 | |
| 730 | scan_ch->active_dwell = cpu_to_le16(active_dwell); |
| 731 | scan_ch->passive_dwell = cpu_to_le16(passive_dwell); |
| 732 | |
| 733 | /* Set txpower levels to defaults */ |
| 734 | scan_ch->dsp_atten = 110; |
| 735 | |
| 736 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use |
| 737 | * power level: |
| 738 | * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; |
| 739 | */ |
| 740 | if (band == IEEE80211_BAND_5GHZ) |
| 741 | scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 742 | else |
| 743 | scan_ch->tx_gain = ((1 << 5) | (5 << 3)); |
| 744 | |
| 745 | IWL_DEBUG_SCAN(priv, "Scanning ch=%d prob=0x%X [%s %d]\n", |
| 746 | channel, le32_to_cpu(scan_ch->type), |
| 747 | (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ? |
| 748 | "ACTIVE" : "PASSIVE", |
| 749 | (scan_ch->type & SCAN_CHANNEL_TYPE_ACTIVE) ? |
| 750 | active_dwell : passive_dwell); |
| 751 | |
| 752 | scan_ch++; |
| 753 | added++; |
| 754 | } |
| 755 | |
| 756 | IWL_DEBUG_SCAN(priv, "total channels to scan %d\n", added); |
| 757 | return added; |
| 758 | } |
| 759 | |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 760 | int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 761 | { |
| 762 | struct iwl_host_cmd cmd = { |
| 763 | .id = REPLY_SCAN_CMD, |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 764 | .len = { sizeof(struct iwl_scan_cmd), }, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 765 | .flags = CMD_SYNC, |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 766 | }; |
| 767 | struct iwl_scan_cmd *scan; |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 768 | struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 769 | u32 rate_flags = 0; |
| 770 | u16 cmd_len; |
| 771 | u16 rx_chain = 0; |
| 772 | enum ieee80211_band band; |
| 773 | u8 n_probes = 0; |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 774 | u8 rx_ant = hw_params(priv).valid_rx_ant; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 775 | u8 rate; |
| 776 | bool is_active = false; |
| 777 | int chan_mod; |
| 778 | u8 active_chains; |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 779 | u8 scan_tx_antennas = hw_params(priv).valid_tx_ant; |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 780 | int ret; |
| 781 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 782 | lockdep_assert_held(&priv->shrd->mutex); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 783 | |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 784 | if (vif) |
| 785 | ctx = iwl_rxon_ctx_from_vif(vif); |
| 786 | |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 787 | if (!priv->scan_cmd) { |
| 788 | priv->scan_cmd = kmalloc(sizeof(struct iwl_scan_cmd) + |
| 789 | IWL_MAX_SCAN_SIZE, GFP_KERNEL); |
| 790 | if (!priv->scan_cmd) { |
| 791 | IWL_DEBUG_SCAN(priv, |
| 792 | "fail to allocate memory for scan\n"); |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 793 | return -ENOMEM; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 794 | } |
| 795 | } |
| 796 | scan = priv->scan_cmd; |
| 797 | memset(scan, 0, sizeof(struct iwl_scan_cmd) + IWL_MAX_SCAN_SIZE); |
| 798 | |
| 799 | scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; |
| 800 | scan->quiet_time = IWL_ACTIVE_QUIET_TIME; |
| 801 | |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 802 | if (priv->scan_type != IWL_SCAN_ROC && |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 803 | iwl_is_any_associated(priv)) { |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 804 | u16 interval = 0; |
| 805 | u32 extra; |
| 806 | u32 suspend_time = 100; |
| 807 | u32 scan_suspend_time = 100; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 808 | |
| 809 | IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 810 | switch (priv->scan_type) { |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 811 | case IWL_SCAN_ROC: |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 812 | WARN_ON(1); |
| 813 | break; |
| 814 | case IWL_SCAN_RADIO_RESET: |
John W. Linville | a6e492b | 2010-07-22 15:24:56 -0400 | [diff] [blame] | 815 | interval = 0; |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 816 | break; |
| 817 | case IWL_SCAN_NORMAL: |
John W. Linville | a6e492b | 2010-07-22 15:24:56 -0400 | [diff] [blame] | 818 | interval = vif->bss_conf.beacon_int; |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 819 | break; |
| 820 | } |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 821 | |
| 822 | scan->suspend_time = 0; |
| 823 | scan->max_out_time = cpu_to_le32(200 * 1024); |
| 824 | if (!interval) |
| 825 | interval = suspend_time; |
| 826 | |
| 827 | extra = (suspend_time / interval) << 22; |
| 828 | scan_suspend_time = (extra | |
| 829 | ((suspend_time % interval) * 1024)); |
| 830 | scan->suspend_time = cpu_to_le32(scan_suspend_time); |
| 831 | IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", |
| 832 | scan_suspend_time, interval); |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 833 | } else if (priv->scan_type == IWL_SCAN_ROC) { |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 834 | scan->suspend_time = 0; |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 835 | scan->max_out_time = 0; |
| 836 | scan->quiet_time = 0; |
| 837 | scan->quiet_plcp_th = 0; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 838 | } |
| 839 | |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 840 | switch (priv->scan_type) { |
| 841 | case IWL_SCAN_RADIO_RESET: |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 842 | IWL_DEBUG_SCAN(priv, "Start internal passive scan.\n"); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 843 | break; |
| 844 | case IWL_SCAN_NORMAL: |
| 845 | if (priv->scan_request->n_ssids) { |
| 846 | int i, p = 0; |
| 847 | IWL_DEBUG_SCAN(priv, "Kicking off active scan\n"); |
| 848 | for (i = 0; i < priv->scan_request->n_ssids; i++) { |
| 849 | /* always does wildcard anyway */ |
| 850 | if (!priv->scan_request->ssids[i].ssid_len) |
| 851 | continue; |
| 852 | scan->direct_scan[p].id = WLAN_EID_SSID; |
| 853 | scan->direct_scan[p].len = |
| 854 | priv->scan_request->ssids[i].ssid_len; |
| 855 | memcpy(scan->direct_scan[p].ssid, |
| 856 | priv->scan_request->ssids[i].ssid, |
| 857 | priv->scan_request->ssids[i].ssid_len); |
| 858 | n_probes++; |
| 859 | p++; |
| 860 | } |
| 861 | is_active = true; |
| 862 | } else |
| 863 | IWL_DEBUG_SCAN(priv, "Start passive scan.\n"); |
| 864 | break; |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 865 | case IWL_SCAN_ROC: |
| 866 | IWL_DEBUG_SCAN(priv, "Start ROC scan.\n"); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 867 | break; |
| 868 | } |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 869 | |
| 870 | scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; |
Johannes Berg | a194e32 | 2010-08-27 08:53:46 -0700 | [diff] [blame] | 871 | scan->tx_cmd.sta_id = ctx->bcast_sta_id; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 872 | scan->tx_cmd.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| 873 | |
| 874 | switch (priv->scan_band) { |
| 875 | case IEEE80211_BAND_2GHZ: |
| 876 | scan->flags = RXON_FLG_BAND_24G_MSK | RXON_FLG_AUTO_DETECT_MSK; |
Johannes Berg | 246ed35 | 2010-08-23 10:46:32 +0200 | [diff] [blame] | 877 | chan_mod = le32_to_cpu( |
| 878 | priv->contexts[IWL_RXON_CTX_BSS].active.flags & |
| 879 | RXON_FLG_CHANNEL_MODE_MSK) |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 880 | >> RXON_FLG_CHANNEL_MODE_POS; |
| 881 | if (chan_mod == CHANNEL_MODE_PURE_40) { |
| 882 | rate = IWL_RATE_6M_PLCP; |
| 883 | } else { |
| 884 | rate = IWL_RATE_1M_PLCP; |
| 885 | rate_flags = RATE_MCS_CCK_MSK; |
| 886 | } |
Johannes Berg | d44ae69 | 2010-08-23 07:56:56 -0700 | [diff] [blame] | 887 | /* |
| 888 | * Internal scans are passive, so we can indiscriminately set |
| 889 | * the BT ignore flag on 2.4 GHz since it applies to TX only. |
| 890 | */ |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 891 | if (priv->cfg->bt_params && |
| 892 | priv->cfg->bt_params->advanced_bt_coexist) |
Johannes Berg | d44ae69 | 2010-08-23 07:56:56 -0700 | [diff] [blame] | 893 | scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 894 | break; |
| 895 | case IEEE80211_BAND_5GHZ: |
| 896 | rate = IWL_RATE_6M_PLCP; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 897 | break; |
| 898 | default: |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 899 | IWL_WARN(priv, "Invalid scan band\n"); |
| 900 | return -EIO; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 901 | } |
| 902 | |
Johannes Berg | 085fbca | 2010-10-04 05:47:23 -0700 | [diff] [blame] | 903 | /* |
| 904 | * If active scanning is requested but a certain channel is |
| 905 | * marked passive, we can do active scanning if we detect |
| 906 | * transmissions. |
| 907 | * |
| 908 | * There is an issue with some firmware versions that triggers |
| 909 | * a sysassert on a "good CRC threshold" of zero (== disabled), |
| 910 | * on a radar channel even though this means that we should NOT |
| 911 | * send probes. |
| 912 | * |
| 913 | * The "good CRC threshold" is the number of frames that we |
| 914 | * need to receive during our dwell time on a channel before |
| 915 | * sending out probes -- setting this to a huge value will |
| 916 | * mean we never reach it, but at the same time work around |
| 917 | * the aforementioned issue. Thus use IWL_GOOD_CRC_TH_NEVER |
| 918 | * here instead of IWL_GOOD_CRC_TH_DISABLED. |
Johannes Berg | d2690c0 | 2011-04-20 09:10:39 -0700 | [diff] [blame] | 919 | * |
| 920 | * This was fixed in later versions along with some other |
| 921 | * scan changes, and the threshold behaves as a flag in those |
| 922 | * versions. |
Johannes Berg | 085fbca | 2010-10-04 05:47:23 -0700 | [diff] [blame] | 923 | */ |
Johannes Berg | d2690c0 | 2011-04-20 09:10:39 -0700 | [diff] [blame] | 924 | if (priv->new_scan_threshold_behaviour) |
| 925 | scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT : |
| 926 | IWL_GOOD_CRC_TH_DISABLED; |
| 927 | else |
| 928 | scan->good_CRC_th = is_active ? IWL_GOOD_CRC_TH_DEFAULT : |
| 929 | IWL_GOOD_CRC_TH_NEVER; |
Johannes Berg | 085fbca | 2010-10-04 05:47:23 -0700 | [diff] [blame] | 930 | |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 931 | band = priv->scan_band; |
| 932 | |
Johannes Berg | 0e1654f | 2010-05-18 02:48:36 -0700 | [diff] [blame] | 933 | if (priv->cfg->scan_rx_antennas[band]) |
| 934 | rx_ant = priv->cfg->scan_rx_antennas[band]; |
Johannes Berg | e7cb495 | 2010-04-13 01:04:35 -0700 | [diff] [blame] | 935 | |
Stanislaw Gruszka | cd017f2 | 2010-12-23 15:12:30 +0100 | [diff] [blame] | 936 | if (band == IEEE80211_BAND_2GHZ && |
| 937 | priv->cfg->bt_params && |
| 938 | priv->cfg->bt_params->advanced_bt_coexist) { |
| 939 | /* transmit 2.4 GHz probes only on first antenna */ |
| 940 | scan_tx_antennas = first_antenna(scan_tx_antennas); |
Wey-Yi Guy | bee008b | 2010-08-23 07:57:04 -0700 | [diff] [blame] | 941 | } |
| 942 | |
Johannes Berg | 0e1654f | 2010-05-18 02:48:36 -0700 | [diff] [blame] | 943 | priv->scan_tx_ant[band] = iwl_toggle_tx_ant(priv, priv->scan_tx_ant[band], |
| 944 | scan_tx_antennas); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 945 | rate_flags |= iwl_ant_idx_to_flags(priv->scan_tx_ant[band]); |
| 946 | scan->tx_cmd.rate_n_flags = iwl_hw_set_rate_n_flags(rate, rate_flags); |
| 947 | |
| 948 | /* In power save mode use one chain, otherwise use all chains */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 949 | if (test_bit(STATUS_POWER_PMI, &priv->shrd->status)) { |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 950 | /* rx_ant has been set to all valid chains previously */ |
| 951 | active_chains = rx_ant & |
| 952 | ((u8)(priv->chain_noise_data.active_chains)); |
| 953 | if (!active_chains) |
| 954 | active_chains = rx_ant; |
| 955 | |
| 956 | IWL_DEBUG_SCAN(priv, "chain_noise_data.active_chains: %u\n", |
| 957 | priv->chain_noise_data.active_chains); |
| 958 | |
| 959 | rx_ant = first_antenna(active_chains); |
| 960 | } |
Wey-Yi Guy | 7cb1b08 | 2010-10-06 08:10:00 -0700 | [diff] [blame] | 961 | if (priv->cfg->bt_params && |
| 962 | priv->cfg->bt_params->advanced_bt_coexist && |
| 963 | priv->bt_full_concurrent) { |
Wey-Yi Guy | bee008b | 2010-08-23 07:57:04 -0700 | [diff] [blame] | 964 | /* operated as 1x1 in full concurrency mode */ |
| 965 | rx_ant = first_antenna(rx_ant); |
| 966 | } |
| 967 | |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 968 | /* MIMO is not used here, but value is required */ |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 969 | rx_chain |= |
| 970 | hw_params(priv).valid_rx_ant << RXON_RX_CHAIN_VALID_POS; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 971 | rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_MIMO_SEL_POS; |
| 972 | rx_chain |= rx_ant << RXON_RX_CHAIN_FORCE_SEL_POS; |
| 973 | rx_chain |= 0x1 << RXON_RX_CHAIN_DRIVER_FORCE_POS; |
| 974 | scan->rx_chain = cpu_to_le16(rx_chain); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 975 | switch (priv->scan_type) { |
| 976 | case IWL_SCAN_NORMAL: |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 977 | cmd_len = iwl_fill_probe_req(priv, |
| 978 | (struct ieee80211_mgmt *)scan->data, |
Johannes Berg | 3a0b9aa | 2010-05-12 03:33:12 -0700 | [diff] [blame] | 979 | vif->addr, |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 980 | priv->scan_request->ie, |
| 981 | priv->scan_request->ie_len, |
| 982 | IWL_MAX_SCAN_SIZE - sizeof(*scan)); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 983 | break; |
| 984 | case IWL_SCAN_RADIO_RESET: |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 985 | case IWL_SCAN_ROC: |
Johannes Berg | 3a0b9aa | 2010-05-12 03:33:12 -0700 | [diff] [blame] | 986 | /* use bcast addr, will not be transmitted but must be valid */ |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 987 | cmd_len = iwl_fill_probe_req(priv, |
| 988 | (struct ieee80211_mgmt *)scan->data, |
Johannes Berg | 3a0b9aa | 2010-05-12 03:33:12 -0700 | [diff] [blame] | 989 | iwl_bcast_addr, NULL, 0, |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 990 | IWL_MAX_SCAN_SIZE - sizeof(*scan)); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 991 | break; |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 992 | default: |
| 993 | BUG(); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 994 | } |
| 995 | scan->tx_cmd.len = cpu_to_le16(cmd_len); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 996 | |
| 997 | scan->filter_flags |= (RXON_FILTER_ACCEPT_GRP_MSK | |
| 998 | RXON_FILTER_BCON_AWARE_MSK); |
| 999 | |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1000 | switch (priv->scan_type) { |
| 1001 | case IWL_SCAN_RADIO_RESET: |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1002 | scan->channel_count = |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 1003 | iwl_get_single_channel_for_scan(priv, vif, band, |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1004 | (void *)&scan->data[cmd_len]); |
| 1005 | break; |
| 1006 | case IWL_SCAN_NORMAL: |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1007 | scan->channel_count = |
Johannes Berg | 1dda6d2 | 2010-04-29 04:43:06 -0700 | [diff] [blame] | 1008 | iwl_get_channels_for_scan(priv, vif, band, |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1009 | is_active, n_probes, |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1010 | (void *)&scan->data[cmd_len]); |
| 1011 | break; |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1012 | case IWL_SCAN_ROC: { |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1013 | struct iwl_scan_channel *scan_ch; |
| 1014 | |
| 1015 | scan->channel_count = 1; |
| 1016 | |
| 1017 | scan_ch = (void *)&scan->data[cmd_len]; |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1018 | scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1019 | scan_ch->channel = |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1020 | cpu_to_le16(priv->hw_roc_channel->hw_value); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1021 | scan_ch->active_dwell = |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1022 | scan_ch->passive_dwell = |
| 1023 | cpu_to_le16(priv->hw_roc_duration); |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1024 | |
| 1025 | /* Set txpower levels to defaults */ |
| 1026 | scan_ch->dsp_atten = 110; |
| 1027 | |
| 1028 | /* NOTE: if we were doing 6Mb OFDM for scans we'd use |
| 1029 | * power level: |
| 1030 | * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; |
| 1031 | */ |
Johannes Berg | c6baf7f | 2011-07-23 10:24:47 -0700 | [diff] [blame] | 1032 | if (priv->hw_roc_channel->band == IEEE80211_BAND_5GHZ) |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1033 | scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; |
| 1034 | else |
| 1035 | scan_ch->tx_gain = ((1 << 5) | (5 << 3)); |
| 1036 | } |
| 1037 | break; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1038 | } |
Johannes Berg | 266af4c7 | 2011-03-10 20:13:26 -0800 | [diff] [blame] | 1039 | |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1040 | if (scan->channel_count == 0) { |
| 1041 | IWL_DEBUG_SCAN(priv, "channel count %d\n", scan->channel_count); |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 1042 | return -EIO; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1043 | } |
| 1044 | |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 1045 | cmd.len[0] += le16_to_cpu(scan->tx_cmd.len) + |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1046 | scan->channel_count * sizeof(struct iwl_scan_channel); |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 1047 | cmd.data[0] = scan; |
Johannes Berg | 4ce7cc2 | 2011-05-13 11:57:40 -0700 | [diff] [blame] | 1048 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 1049 | scan->len = cpu_to_le16(cmd.len[0]); |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1050 | |
Johannes Berg | 1cf2637 | 2010-09-22 07:32:13 -0700 | [diff] [blame] | 1051 | /* set scan bit here for PAN params */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1052 | set_bit(STATUS_SCAN_HW, &priv->shrd->status); |
Johannes Berg | 1cf2637 | 2010-09-22 07:32:13 -0700 | [diff] [blame] | 1053 | |
Wey-Yi Guy | e3f10ce | 2011-07-01 07:59:26 -0700 | [diff] [blame] | 1054 | ret = iwlagn_set_pan_params(priv); |
| 1055 | if (ret) |
| 1056 | return ret; |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 1057 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 1058 | ret = iwl_trans_send_cmd(trans(priv), &cmd); |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 1059 | if (ret) { |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1060 | clear_bit(STATUS_SCAN_HW, &priv->shrd->status); |
Wey-Yi Guy | e3f10ce | 2011-07-01 07:59:26 -0700 | [diff] [blame] | 1061 | iwlagn_set_pan_params(priv); |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 1062 | } |
Johannes Berg | 52a02d1 | 2010-08-27 09:44:50 -0700 | [diff] [blame] | 1063 | |
Johannes Berg | 3eecce5 | 2010-09-13 14:46:33 +0200 | [diff] [blame] | 1064 | return ret; |
Johannes Berg | b6e4c55 | 2010-04-06 04:12:42 -0700 | [diff] [blame] | 1065 | } |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 1066 | |
| 1067 | int iwlagn_manage_ibss_station(struct iwl_priv *priv, |
| 1068 | struct ieee80211_vif *vif, bool add) |
| 1069 | { |
Johannes Berg | fd1af15 | 2010-04-30 11:30:43 -0700 | [diff] [blame] | 1070 | struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| 1071 | |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 1072 | if (add) |
Johannes Berg | a30e311 | 2010-09-22 18:02:01 +0200 | [diff] [blame] | 1073 | return iwlagn_add_bssid_station(priv, vif_priv->ctx, |
| 1074 | vif->bss_conf.bssid, |
| 1075 | &vif_priv->ibss_bssid_sta_id); |
Johannes Berg | fd1af15 | 2010-04-30 11:30:43 -0700 | [diff] [blame] | 1076 | return iwl_remove_station(priv, vif_priv->ibss_bssid_sta_id, |
| 1077 | vif->bss_conf.bssid); |
Johannes Berg | 1fa61b2 | 2010-04-28 08:44:52 -0700 | [diff] [blame] | 1078 | } |
Johannes Berg | 1ff504e | 2010-05-03 01:22:42 -0700 | [diff] [blame] | 1079 | |
| 1080 | void iwl_free_tfds_in_queue(struct iwl_priv *priv, |
| 1081 | int sta_id, int tid, int freed) |
| 1082 | { |
Emmanuel Grumbach | f39c95e | 2011-08-25 23:10:47 -0700 | [diff] [blame] | 1083 | lockdep_assert_held(&priv->shrd->sta_lock); |
Reinette Chatre | 9c5ac09 | 2010-05-05 02:26:06 -0700 | [diff] [blame] | 1084 | |
Johannes Berg | 1ff504e | 2010-05-03 01:22:42 -0700 | [diff] [blame] | 1085 | if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed) |
| 1086 | priv->stations[sta_id].tid[tid].tfds_in_queue -= freed; |
| 1087 | else { |
| 1088 | IWL_DEBUG_TX(priv, "free more than tfds_in_queue (%u:%d)\n", |
| 1089 | priv->stations[sta_id].tid[tid].tfds_in_queue, |
| 1090 | freed); |
| 1091 | priv->stations[sta_id].tid[tid].tfds_in_queue = 0; |
| 1092 | } |
| 1093 | } |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1094 | |
| 1095 | #define IWL_FLUSH_WAIT_MS 2000 |
| 1096 | |
| 1097 | int iwlagn_wait_tx_queue_empty(struct iwl_priv *priv) |
| 1098 | { |
| 1099 | struct iwl_tx_queue *txq; |
| 1100 | struct iwl_queue *q; |
| 1101 | int cnt; |
| 1102 | unsigned long now = jiffies; |
| 1103 | int ret = 0; |
| 1104 | |
| 1105 | /* waiting for all the tx frames complete might take a while */ |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1106 | for (cnt = 0; cnt < hw_params(priv).max_txq_num; cnt++) { |
Emmanuel Grumbach | cefeaa5 | 2011-08-25 23:10:40 -0700 | [diff] [blame] | 1107 | if (cnt == priv->shrd->cmd_queue) |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1108 | continue; |
| 1109 | txq = &priv->txq[cnt]; |
| 1110 | q = &txq->q; |
| 1111 | while (q->read_ptr != q->write_ptr && !time_after(jiffies, |
| 1112 | now + msecs_to_jiffies(IWL_FLUSH_WAIT_MS))) |
| 1113 | msleep(1); |
| 1114 | |
| 1115 | if (q->read_ptr != q->write_ptr) { |
| 1116 | IWL_ERR(priv, "fail to flush all tx fifo queues\n"); |
| 1117 | ret = -ETIMEDOUT; |
| 1118 | break; |
| 1119 | } |
| 1120 | } |
| 1121 | return ret; |
| 1122 | } |
| 1123 | |
| 1124 | #define IWL_TX_QUEUE_MSK 0xfffff |
| 1125 | |
| 1126 | /** |
| 1127 | * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode |
| 1128 | * |
| 1129 | * pre-requirements: |
| 1130 | * 1. acquire mutex before calling |
| 1131 | * 2. make sure rf is on and not in exit state |
| 1132 | */ |
| 1133 | int iwlagn_txfifo_flush(struct iwl_priv *priv, u16 flush_control) |
| 1134 | { |
| 1135 | struct iwl_txfifo_flush_cmd flush_cmd; |
| 1136 | struct iwl_host_cmd cmd = { |
| 1137 | .id = REPLY_TXFIFO_FLUSH, |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 1138 | .len = { sizeof(struct iwl_txfifo_flush_cmd), }, |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1139 | .flags = CMD_SYNC, |
Johannes Berg | 3fa5073 | 2011-05-04 07:50:38 -0700 | [diff] [blame] | 1140 | .data = { &flush_cmd, }, |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1141 | }; |
| 1142 | |
| 1143 | might_sleep(); |
| 1144 | |
| 1145 | memset(&flush_cmd, 0, sizeof(flush_cmd)); |
Wey-Yi Guy | ecdbe86 | 2011-06-08 09:57:26 -0700 | [diff] [blame] | 1146 | if (flush_control & BIT(IWL_RXON_CTX_BSS)) |
| 1147 | flush_cmd.fifo_control = IWL_SCD_VO_MSK | IWL_SCD_VI_MSK | |
Wey-Yi Guy | f88e0ec | 2011-06-08 09:57:25 -0700 | [diff] [blame] | 1148 | IWL_SCD_BE_MSK | IWL_SCD_BK_MSK | |
| 1149 | IWL_SCD_MGMT_MSK; |
Wey-Yi Guy | ecdbe86 | 2011-06-08 09:57:26 -0700 | [diff] [blame] | 1150 | if ((flush_control & BIT(IWL_RXON_CTX_PAN)) && |
| 1151 | (priv->valid_contexts != BIT(IWL_RXON_CTX_BSS))) |
Wey-Yi Guy | f88e0ec | 2011-06-08 09:57:25 -0700 | [diff] [blame] | 1152 | flush_cmd.fifo_control |= IWL_PAN_SCD_VO_MSK | |
| 1153 | IWL_PAN_SCD_VI_MSK | IWL_PAN_SCD_BE_MSK | |
| 1154 | IWL_PAN_SCD_BK_MSK | IWL_PAN_SCD_MGMT_MSK | |
| 1155 | IWL_PAN_SCD_MULTICAST_MSK; |
| 1156 | |
Wey-Yi Guy | 8895075 | 2011-06-06 12:05:46 -0700 | [diff] [blame] | 1157 | if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1158 | flush_cmd.fifo_control |= IWL_AGG_TX_QUEUE_MSK; |
| 1159 | |
| 1160 | IWL_DEBUG_INFO(priv, "fifo queue control: 0X%x\n", |
| 1161 | flush_cmd.fifo_control); |
| 1162 | flush_cmd.flush_control = cpu_to_le16(flush_control); |
| 1163 | |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 1164 | return iwl_trans_send_cmd(trans(priv), &cmd); |
Wey-Yi Guy | 716c74b | 2010-06-24 13:22:36 -0700 | [diff] [blame] | 1165 | } |
Wey-Yi Guy | 6555063 | 2010-06-24 13:18:35 -0700 | [diff] [blame] | 1166 | |
| 1167 | void iwlagn_dev_txfifo_flush(struct iwl_priv *priv, u16 flush_control) |
| 1168 | { |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1169 | mutex_lock(&priv->shrd->mutex); |
Wey-Yi Guy | 6555063 | 2010-06-24 13:18:35 -0700 | [diff] [blame] | 1170 | ieee80211_stop_queues(priv->hw); |
Wey-Yi Guy | c68744f | 2011-06-18 08:03:18 -0700 | [diff] [blame] | 1171 | if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { |
Wey-Yi Guy | 6555063 | 2010-06-24 13:18:35 -0700 | [diff] [blame] | 1172 | IWL_ERR(priv, "flush request fail\n"); |
| 1173 | goto done; |
| 1174 | } |
| 1175 | IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n"); |
| 1176 | iwlagn_wait_tx_queue_empty(priv); |
| 1177 | done: |
| 1178 | ieee80211_wake_queues(priv->hw); |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1179 | mutex_unlock(&priv->shrd->mutex); |
Wey-Yi Guy | 6555063 | 2010-06-24 13:18:35 -0700 | [diff] [blame] | 1180 | } |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1181 | |
| 1182 | /* |
| 1183 | * BT coex |
| 1184 | */ |
| 1185 | /* |
| 1186 | * Macros to access the lookup table. |
| 1187 | * |
| 1188 | * The lookup table has 7 inputs: bt3_prio, bt3_txrx, bt_rf_act, wifi_req, |
| 1189 | * wifi_prio, wifi_txrx and wifi_sh_ant_req. |
| 1190 | * |
| 1191 | * It has three outputs: WLAN_ACTIVE, WLAN_KILL and ANT_SWITCH |
| 1192 | * |
| 1193 | * The format is that "registers" 8 through 11 contain the WLAN_ACTIVE bits |
| 1194 | * one after another in 32-bit registers, and "registers" 0 through 7 contain |
| 1195 | * the WLAN_KILL and ANT_SWITCH bits interleaved (in that order). |
| 1196 | * |
| 1197 | * These macros encode that format. |
| 1198 | */ |
| 1199 | #define LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, wifi_req, wifi_prio, \ |
| 1200 | wifi_txrx, wifi_sh_ant_req) \ |
| 1201 | (bt3_prio | (bt3_txrx << 1) | (bt_rf_act << 2) | (wifi_req << 3) | \ |
| 1202 | (wifi_prio << 4) | (wifi_txrx << 5) | (wifi_sh_ant_req << 6)) |
| 1203 | |
| 1204 | #define LUT_PTA_WLAN_ACTIVE_OP(lut, op, val) \ |
| 1205 | lut[8 + ((val) >> 5)] op (cpu_to_le32(BIT((val) & 0x1f))) |
| 1206 | #define LUT_TEST_PTA_WLAN_ACTIVE(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1207 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1208 | (!!(LUT_PTA_WLAN_ACTIVE_OP(lut, &, LUT_VALUE(bt3_prio, bt3_txrx, \ |
| 1209 | bt_rf_act, wifi_req, wifi_prio, wifi_txrx, \ |
| 1210 | wifi_sh_ant_req)))) |
| 1211 | #define LUT_SET_PTA_WLAN_ACTIVE(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1212 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1213 | LUT_PTA_WLAN_ACTIVE_OP(lut, |=, LUT_VALUE(bt3_prio, bt3_txrx, \ |
| 1214 | bt_rf_act, wifi_req, wifi_prio, wifi_txrx, \ |
| 1215 | wifi_sh_ant_req)) |
| 1216 | #define LUT_CLEAR_PTA_WLAN_ACTIVE(lut, bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1217 | wifi_req, wifi_prio, wifi_txrx, \ |
| 1218 | wifi_sh_ant_req) \ |
| 1219 | LUT_PTA_WLAN_ACTIVE_OP(lut, &= ~, LUT_VALUE(bt3_prio, bt3_txrx, \ |
| 1220 | bt_rf_act, wifi_req, wifi_prio, wifi_txrx, \ |
| 1221 | wifi_sh_ant_req)) |
| 1222 | |
| 1223 | #define LUT_WLAN_KILL_OP(lut, op, val) \ |
| 1224 | lut[(val) >> 4] op (cpu_to_le32(BIT(((val) << 1) & 0x1e))) |
| 1225 | #define LUT_TEST_WLAN_KILL(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1226 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1227 | (!!(LUT_WLAN_KILL_OP(lut, &, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1228 | wifi_req, wifi_prio, wifi_txrx, wifi_sh_ant_req)))) |
| 1229 | #define LUT_SET_WLAN_KILL(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1230 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1231 | LUT_WLAN_KILL_OP(lut, |=, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1232 | wifi_req, wifi_prio, wifi_txrx, wifi_sh_ant_req)) |
| 1233 | #define LUT_CLEAR_WLAN_KILL(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1234 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1235 | LUT_WLAN_KILL_OP(lut, &= ~, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1236 | wifi_req, wifi_prio, wifi_txrx, wifi_sh_ant_req)) |
| 1237 | |
| 1238 | #define LUT_ANT_SWITCH_OP(lut, op, val) \ |
| 1239 | lut[(val) >> 4] op (cpu_to_le32(BIT((((val) << 1) & 0x1e) + 1))) |
| 1240 | #define LUT_TEST_ANT_SWITCH(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1241 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1242 | (!!(LUT_ANT_SWITCH_OP(lut, &, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1243 | wifi_req, wifi_prio, wifi_txrx, \ |
| 1244 | wifi_sh_ant_req)))) |
| 1245 | #define LUT_SET_ANT_SWITCH(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1246 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1247 | LUT_ANT_SWITCH_OP(lut, |=, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1248 | wifi_req, wifi_prio, wifi_txrx, wifi_sh_ant_req)) |
| 1249 | #define LUT_CLEAR_ANT_SWITCH(lut, bt3_prio, bt3_txrx, bt_rf_act, wifi_req, \ |
| 1250 | wifi_prio, wifi_txrx, wifi_sh_ant_req) \ |
| 1251 | LUT_ANT_SWITCH_OP(lut, &= ~, LUT_VALUE(bt3_prio, bt3_txrx, bt_rf_act, \ |
| 1252 | wifi_req, wifi_prio, wifi_txrx, wifi_sh_ant_req)) |
| 1253 | |
| 1254 | static const __le32 iwlagn_def_3w_lookup[12] = { |
| 1255 | cpu_to_le32(0xaaaaaaaa), |
| 1256 | cpu_to_le32(0xaaaaaaaa), |
| 1257 | cpu_to_le32(0xaeaaaaaa), |
| 1258 | cpu_to_le32(0xaaaaaaaa), |
| 1259 | cpu_to_le32(0xcc00ff28), |
| 1260 | cpu_to_le32(0x0000aaaa), |
| 1261 | cpu_to_le32(0xcc00aaaa), |
| 1262 | cpu_to_le32(0x0000aaaa), |
| 1263 | cpu_to_le32(0xc0004000), |
| 1264 | cpu_to_le32(0x00004000), |
| 1265 | cpu_to_le32(0xf0005000), |
Wey-Yi Guy | 9a67d76 | 2010-11-18 10:40:03 -0800 | [diff] [blame] | 1266 | cpu_to_le32(0xf0005000), |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1267 | }; |
| 1268 | |
| 1269 | static const __le32 iwlagn_concurrent_lookup[12] = { |
| 1270 | cpu_to_le32(0xaaaaaaaa), |
| 1271 | cpu_to_le32(0xaaaaaaaa), |
| 1272 | cpu_to_le32(0xaaaaaaaa), |
| 1273 | cpu_to_le32(0xaaaaaaaa), |
| 1274 | cpu_to_le32(0xaaaaaaaa), |
| 1275 | cpu_to_le32(0xaaaaaaaa), |
| 1276 | cpu_to_le32(0xaaaaaaaa), |
| 1277 | cpu_to_le32(0xaaaaaaaa), |
| 1278 | cpu_to_le32(0x00000000), |
| 1279 | cpu_to_le32(0x00000000), |
| 1280 | cpu_to_le32(0x00000000), |
| 1281 | cpu_to_le32(0x00000000), |
| 1282 | }; |
| 1283 | |
| 1284 | void iwlagn_send_advance_bt_config(struct iwl_priv *priv) |
| 1285 | { |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1286 | struct iwl_basic_bt_cmd basic = { |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1287 | .max_kill = IWLAGN_BT_MAX_KILL_DEFAULT, |
| 1288 | .bt3_timer_t7_value = IWLAGN_BT3_T7_DEFAULT, |
| 1289 | .bt3_prio_sample_time = IWLAGN_BT3_PRIO_SAMPLE_DEFAULT, |
| 1290 | .bt3_timer_t2_value = IWLAGN_BT3_T2_DEFAULT, |
| 1291 | }; |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1292 | struct iwl6000_bt_cmd bt_cmd_6000; |
| 1293 | struct iwl2000_bt_cmd bt_cmd_2000; |
| 1294 | int ret; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1295 | |
| 1296 | BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) != |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1297 | sizeof(basic.bt3_lookup_table)); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1298 | |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1299 | if (priv->cfg->bt_params) { |
| 1300 | if (priv->cfg->bt_params->bt_session_2) { |
| 1301 | bt_cmd_2000.prio_boost = cpu_to_le32( |
| 1302 | priv->cfg->bt_params->bt_prio_boost); |
| 1303 | bt_cmd_2000.tx_prio_boost = 0; |
| 1304 | bt_cmd_2000.rx_prio_boost = 0; |
| 1305 | } else { |
| 1306 | bt_cmd_6000.prio_boost = |
| 1307 | priv->cfg->bt_params->bt_prio_boost; |
| 1308 | bt_cmd_6000.tx_prio_boost = 0; |
| 1309 | bt_cmd_6000.rx_prio_boost = 0; |
| 1310 | } |
| 1311 | } else { |
| 1312 | IWL_ERR(priv, "failed to construct BT Coex Config\n"); |
| 1313 | return; |
| 1314 | } |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1315 | |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1316 | basic.kill_ack_mask = priv->kill_ack_mask; |
| 1317 | basic.kill_cts_mask = priv->kill_cts_mask; |
| 1318 | basic.valid = priv->bt_valid; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1319 | |
| 1320 | /* |
| 1321 | * Configure BT coex mode to "no coexistence" when the |
| 1322 | * user disabled BT coexistence, we have no interface |
| 1323 | * (might be in monitor mode), or the interface is in |
| 1324 | * IBSS mode (no proper uCode support for coex then). |
| 1325 | */ |
Wey-Yi Guy | b60eec9 | 2011-06-03 13:52:38 -0700 | [diff] [blame] | 1326 | if (!iwlagn_mod_params.bt_coex_active || |
| 1327 | priv->iw_mode == NL80211_IFTYPE_ADHOC) { |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1328 | basic.flags = IWLAGN_BT_FLAG_COEX_MODE_DISABLED; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1329 | } else { |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1330 | basic.flags = IWLAGN_BT_FLAG_COEX_MODE_3W << |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1331 | IWLAGN_BT_FLAG_COEX_MODE_SHIFT; |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1332 | |
| 1333 | if (!priv->bt_enable_pspoll) |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1334 | basic.flags |= IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1335 | else |
| 1336 | basic.flags &= ~IWLAGN_BT_FLAG_SYNC_2_BT_DISABLE; |
Wey-Yi Guy | e366176 | 2010-11-23 10:58:54 -0800 | [diff] [blame] | 1337 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1338 | if (priv->bt_ch_announce) |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1339 | basic.flags |= IWLAGN_BT_FLAG_CHANNEL_INHIBITION; |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1340 | IWL_DEBUG_COEX(priv, "BT coex flag: 0X%x\n", basic.flags); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1341 | } |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1342 | priv->bt_enable_flag = basic.flags; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1343 | if (priv->bt_full_concurrent) |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1344 | memcpy(basic.bt3_lookup_table, iwlagn_concurrent_lookup, |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1345 | sizeof(iwlagn_concurrent_lookup)); |
| 1346 | else |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1347 | memcpy(basic.bt3_lookup_table, iwlagn_def_3w_lookup, |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1348 | sizeof(iwlagn_def_3w_lookup)); |
| 1349 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1350 | IWL_DEBUG_COEX(priv, "BT coex %s in %s mode\n", |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1351 | basic.flags ? "active" : "disabled", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1352 | priv->bt_full_concurrent ? |
| 1353 | "full concurrency" : "3-wire"); |
| 1354 | |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1355 | if (priv->cfg->bt_params->bt_session_2) { |
| 1356 | memcpy(&bt_cmd_2000.basic, &basic, |
| 1357 | sizeof(basic)); |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 1358 | ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_BT_CONFIG, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1359 | CMD_SYNC, sizeof(bt_cmd_2000), &bt_cmd_2000); |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1360 | } else { |
| 1361 | memcpy(&bt_cmd_6000.basic, &basic, |
| 1362 | sizeof(basic)); |
Emmanuel Grumbach | e6bb4c9 | 2011-08-25 23:10:48 -0700 | [diff] [blame] | 1363 | ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_BT_CONFIG, |
Emmanuel Grumbach | e419d62 | 2011-07-08 08:46:14 -0700 | [diff] [blame] | 1364 | CMD_SYNC, sizeof(bt_cmd_6000), &bt_cmd_6000); |
Wey-Yi Guy | 6013270 | 2011-02-18 17:23:54 -0800 | [diff] [blame] | 1365 | } |
| 1366 | if (ret) |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1367 | IWL_ERR(priv, "failed to send BT Coex Config\n"); |
| 1368 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1369 | } |
| 1370 | |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1371 | void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena) |
| 1372 | { |
| 1373 | struct iwl_rxon_context *ctx, *found_ctx = NULL; |
| 1374 | bool found_ap = false; |
| 1375 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1376 | lockdep_assert_held(&priv->shrd->mutex); |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1377 | |
| 1378 | /* Check whether AP or GO mode is active. */ |
| 1379 | if (rssi_ena) { |
| 1380 | for_each_context(priv, ctx) { |
| 1381 | if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_AP && |
| 1382 | iwl_is_associated_ctx(ctx)) { |
| 1383 | found_ap = true; |
| 1384 | break; |
| 1385 | } |
| 1386 | } |
| 1387 | } |
| 1388 | |
| 1389 | /* |
| 1390 | * If disable was received or If GO/AP mode, disable RSSI |
| 1391 | * measurements. |
| 1392 | */ |
| 1393 | if (!rssi_ena || found_ap) { |
| 1394 | if (priv->cur_rssi_ctx) { |
| 1395 | ctx = priv->cur_rssi_ctx; |
| 1396 | ieee80211_disable_rssi_reports(ctx->vif); |
| 1397 | priv->cur_rssi_ctx = NULL; |
| 1398 | } |
| 1399 | return; |
| 1400 | } |
| 1401 | |
| 1402 | /* |
| 1403 | * If rssi measurements need to be enabled, consider all cases now. |
| 1404 | * Figure out how many contexts are active. |
| 1405 | */ |
| 1406 | for_each_context(priv, ctx) { |
| 1407 | if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION && |
| 1408 | iwl_is_associated_ctx(ctx)) { |
| 1409 | found_ctx = ctx; |
| 1410 | break; |
| 1411 | } |
| 1412 | } |
| 1413 | |
| 1414 | /* |
| 1415 | * rssi monitor already enabled for the correct interface...nothing |
| 1416 | * to do. |
| 1417 | */ |
| 1418 | if (found_ctx == priv->cur_rssi_ctx) |
| 1419 | return; |
| 1420 | |
| 1421 | /* |
| 1422 | * Figure out if rssi monitor is currently enabled, and needs |
| 1423 | * to be changed. If rssi monitor is already enabled, disable |
| 1424 | * it first else just enable rssi measurements on the |
| 1425 | * interface found above. |
| 1426 | */ |
| 1427 | if (priv->cur_rssi_ctx) { |
| 1428 | ctx = priv->cur_rssi_ctx; |
| 1429 | if (ctx->vif) |
| 1430 | ieee80211_disable_rssi_reports(ctx->vif); |
| 1431 | } |
| 1432 | |
| 1433 | priv->cur_rssi_ctx = found_ctx; |
| 1434 | |
| 1435 | if (!found_ctx) |
| 1436 | return; |
| 1437 | |
| 1438 | ieee80211_enable_rssi_reports(found_ctx->vif, |
| 1439 | IWLAGN_BT_PSP_MIN_RSSI_THRESHOLD, |
| 1440 | IWLAGN_BT_PSP_MAX_RSSI_THRESHOLD); |
| 1441 | } |
| 1442 | |
| 1443 | static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg) |
| 1444 | { |
| 1445 | return BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3 >> |
| 1446 | BT_UART_MSG_FRAME3SCOESCO_POS; |
| 1447 | } |
| 1448 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1449 | static void iwlagn_bt_traffic_change_work(struct work_struct *work) |
| 1450 | { |
| 1451 | struct iwl_priv *priv = |
| 1452 | container_of(work, struct iwl_priv, bt_traffic_change_work); |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 1453 | struct iwl_rxon_context *ctx; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1454 | int smps_request = -1; |
| 1455 | |
Wey-Yi Guy | c4197c6 | 2011-02-06 08:56:35 -0800 | [diff] [blame] | 1456 | if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { |
| 1457 | /* bt coex disabled */ |
| 1458 | return; |
| 1459 | } |
| 1460 | |
Stanislaw Gruszka | 5eda74a | 2010-10-22 17:04:28 +0200 | [diff] [blame] | 1461 | /* |
| 1462 | * Note: bt_traffic_load can be overridden by scan complete and |
| 1463 | * coex profile notifications. Ignore that since only bad consequence |
| 1464 | * can be not matching debug print with actual state. |
| 1465 | */ |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1466 | IWL_DEBUG_COEX(priv, "BT traffic load changes: %d\n", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1467 | priv->bt_traffic_load); |
| 1468 | |
| 1469 | switch (priv->bt_traffic_load) { |
| 1470 | case IWL_BT_COEX_TRAFFIC_LOAD_NONE: |
Wey-Yi Guy | f5682c0 | 2010-10-23 09:15:44 -0700 | [diff] [blame] | 1471 | if (priv->bt_status) |
| 1472 | smps_request = IEEE80211_SMPS_DYNAMIC; |
| 1473 | else |
| 1474 | smps_request = IEEE80211_SMPS_AUTOMATIC; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1475 | break; |
| 1476 | case IWL_BT_COEX_TRAFFIC_LOAD_LOW: |
| 1477 | smps_request = IEEE80211_SMPS_DYNAMIC; |
| 1478 | break; |
| 1479 | case IWL_BT_COEX_TRAFFIC_LOAD_HIGH: |
| 1480 | case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS: |
| 1481 | smps_request = IEEE80211_SMPS_STATIC; |
| 1482 | break; |
| 1483 | default: |
| 1484 | IWL_ERR(priv, "Invalid BT traffic load: %d\n", |
| 1485 | priv->bt_traffic_load); |
| 1486 | break; |
| 1487 | } |
| 1488 | |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1489 | mutex_lock(&priv->shrd->mutex); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1490 | |
Stanislaw Gruszka | 5eda74a | 2010-10-22 17:04:28 +0200 | [diff] [blame] | 1491 | /* |
| 1492 | * We can not send command to firmware while scanning. When the scan |
| 1493 | * complete we will schedule this work again. We do check with mutex |
| 1494 | * locked to prevent new scan request to arrive. We do not check |
| 1495 | * STATUS_SCANNING to avoid race when queue_work two times from |
| 1496 | * different notifications, but quit and not perform any work at all. |
| 1497 | */ |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1498 | if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) |
Stanislaw Gruszka | 5eda74a | 2010-10-22 17:04:28 +0200 | [diff] [blame] | 1499 | goto out; |
| 1500 | |
Fry, Donald H | 6b6db91 | 2011-07-08 08:46:17 -0700 | [diff] [blame] | 1501 | iwl_update_chain_flags(priv); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1502 | |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 1503 | if (smps_request != -1) { |
Wey-Yi Guy | 88e9ba7 | 2011-06-03 07:54:12 -0700 | [diff] [blame] | 1504 | priv->current_ht_config.smps = smps_request; |
Johannes Berg | 8bd413e | 2010-08-23 10:46:40 +0200 | [diff] [blame] | 1505 | for_each_context(priv, ctx) { |
| 1506 | if (ctx->vif && ctx->vif->type == NL80211_IFTYPE_STATION) |
| 1507 | ieee80211_request_smps(ctx->vif, smps_request); |
| 1508 | } |
| 1509 | } |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1510 | |
| 1511 | /* |
| 1512 | * Dynamic PS poll related functionality. Adjust RSSI measurements if |
| 1513 | * necessary. |
| 1514 | */ |
| 1515 | iwlagn_bt_coex_rssi_monitor(priv); |
Stanislaw Gruszka | 5eda74a | 2010-10-22 17:04:28 +0200 | [diff] [blame] | 1516 | out: |
Emmanuel Grumbach | 6ac2f83 | 2011-08-25 23:10:44 -0700 | [diff] [blame] | 1517 | mutex_unlock(&priv->shrd->mutex); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1518 | } |
| 1519 | |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1520 | /* |
| 1521 | * If BT sco traffic, and RSSI monitor is enabled, move measurements to the |
| 1522 | * correct interface or disable it if this is the last interface to be |
| 1523 | * removed. |
| 1524 | */ |
| 1525 | void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv) |
| 1526 | { |
| 1527 | if (priv->bt_is_sco && |
| 1528 | priv->bt_traffic_load == IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS) |
| 1529 | iwlagn_bt_adjust_rssi_monitor(priv, true); |
| 1530 | else |
| 1531 | iwlagn_bt_adjust_rssi_monitor(priv, false); |
| 1532 | } |
| 1533 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1534 | static void iwlagn_print_uartmsg(struct iwl_priv *priv, |
| 1535 | struct iwl_bt_uart_msg *uart_msg) |
| 1536 | { |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1537 | IWL_DEBUG_COEX(priv, "Message Type = 0x%X, SSN = 0x%X, " |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1538 | "Update Req = 0x%X", |
| 1539 | (BT_UART_MSG_FRAME1MSGTYPE_MSK & uart_msg->frame1) >> |
| 1540 | BT_UART_MSG_FRAME1MSGTYPE_POS, |
| 1541 | (BT_UART_MSG_FRAME1SSN_MSK & uart_msg->frame1) >> |
| 1542 | BT_UART_MSG_FRAME1SSN_POS, |
| 1543 | (BT_UART_MSG_FRAME1UPDATEREQ_MSK & uart_msg->frame1) >> |
| 1544 | BT_UART_MSG_FRAME1UPDATEREQ_POS); |
| 1545 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1546 | IWL_DEBUG_COEX(priv, "Open connections = 0x%X, Traffic load = 0x%X, " |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1547 | "Chl_SeqN = 0x%X, In band = 0x%X", |
| 1548 | (BT_UART_MSG_FRAME2OPENCONNECTIONS_MSK & uart_msg->frame2) >> |
| 1549 | BT_UART_MSG_FRAME2OPENCONNECTIONS_POS, |
| 1550 | (BT_UART_MSG_FRAME2TRAFFICLOAD_MSK & uart_msg->frame2) >> |
| 1551 | BT_UART_MSG_FRAME2TRAFFICLOAD_POS, |
| 1552 | (BT_UART_MSG_FRAME2CHLSEQN_MSK & uart_msg->frame2) >> |
| 1553 | BT_UART_MSG_FRAME2CHLSEQN_POS, |
| 1554 | (BT_UART_MSG_FRAME2INBAND_MSK & uart_msg->frame2) >> |
| 1555 | BT_UART_MSG_FRAME2INBAND_POS); |
| 1556 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1557 | IWL_DEBUG_COEX(priv, "SCO/eSCO = 0x%X, Sniff = 0x%X, A2DP = 0x%X, " |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1558 | "ACL = 0x%X, Master = 0x%X, OBEX = 0x%X", |
| 1559 | (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) >> |
| 1560 | BT_UART_MSG_FRAME3SCOESCO_POS, |
| 1561 | (BT_UART_MSG_FRAME3SNIFF_MSK & uart_msg->frame3) >> |
| 1562 | BT_UART_MSG_FRAME3SNIFF_POS, |
| 1563 | (BT_UART_MSG_FRAME3A2DP_MSK & uart_msg->frame3) >> |
| 1564 | BT_UART_MSG_FRAME3A2DP_POS, |
| 1565 | (BT_UART_MSG_FRAME3ACL_MSK & uart_msg->frame3) >> |
| 1566 | BT_UART_MSG_FRAME3ACL_POS, |
| 1567 | (BT_UART_MSG_FRAME3MASTER_MSK & uart_msg->frame3) >> |
| 1568 | BT_UART_MSG_FRAME3MASTER_POS, |
| 1569 | (BT_UART_MSG_FRAME3OBEX_MSK & uart_msg->frame3) >> |
| 1570 | BT_UART_MSG_FRAME3OBEX_POS); |
| 1571 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1572 | IWL_DEBUG_COEX(priv, "Idle duration = 0x%X", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1573 | (BT_UART_MSG_FRAME4IDLEDURATION_MSK & uart_msg->frame4) >> |
| 1574 | BT_UART_MSG_FRAME4IDLEDURATION_POS); |
| 1575 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1576 | IWL_DEBUG_COEX(priv, "Tx Activity = 0x%X, Rx Activity = 0x%X, " |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1577 | "eSCO Retransmissions = 0x%X", |
| 1578 | (BT_UART_MSG_FRAME5TXACTIVITY_MSK & uart_msg->frame5) >> |
| 1579 | BT_UART_MSG_FRAME5TXACTIVITY_POS, |
| 1580 | (BT_UART_MSG_FRAME5RXACTIVITY_MSK & uart_msg->frame5) >> |
| 1581 | BT_UART_MSG_FRAME5RXACTIVITY_POS, |
| 1582 | (BT_UART_MSG_FRAME5ESCORETRANSMIT_MSK & uart_msg->frame5) >> |
| 1583 | BT_UART_MSG_FRAME5ESCORETRANSMIT_POS); |
| 1584 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1585 | IWL_DEBUG_COEX(priv, "Sniff Interval = 0x%X, Discoverable = 0x%X", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1586 | (BT_UART_MSG_FRAME6SNIFFINTERVAL_MSK & uart_msg->frame6) >> |
| 1587 | BT_UART_MSG_FRAME6SNIFFINTERVAL_POS, |
| 1588 | (BT_UART_MSG_FRAME6DISCOVERABLE_MSK & uart_msg->frame6) >> |
| 1589 | BT_UART_MSG_FRAME6DISCOVERABLE_POS); |
| 1590 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1591 | IWL_DEBUG_COEX(priv, "Sniff Activity = 0x%X, Page = " |
Wey-Yi Guy | 399f66f | 2011-02-22 08:24:22 -0800 | [diff] [blame] | 1592 | "0x%X, Inquiry = 0x%X, Connectable = 0x%X", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1593 | (BT_UART_MSG_FRAME7SNIFFACTIVITY_MSK & uart_msg->frame7) >> |
| 1594 | BT_UART_MSG_FRAME7SNIFFACTIVITY_POS, |
Wey-Yi Guy | 399f66f | 2011-02-22 08:24:22 -0800 | [diff] [blame] | 1595 | (BT_UART_MSG_FRAME7PAGE_MSK & uart_msg->frame7) >> |
| 1596 | BT_UART_MSG_FRAME7PAGE_POS, |
| 1597 | (BT_UART_MSG_FRAME7INQUIRY_MSK & uart_msg->frame7) >> |
| 1598 | BT_UART_MSG_FRAME7INQUIRY_POS, |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1599 | (BT_UART_MSG_FRAME7CONNECTABLE_MSK & uart_msg->frame7) >> |
| 1600 | BT_UART_MSG_FRAME7CONNECTABLE_POS); |
| 1601 | } |
| 1602 | |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1603 | static void iwlagn_set_kill_msk(struct iwl_priv *priv, |
| 1604 | struct iwl_bt_uart_msg *uart_msg) |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1605 | { |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1606 | u8 kill_msk; |
Joe Perches | 20407ed | 2010-11-20 18:38:57 -0800 | [diff] [blame] | 1607 | static const __le32 bt_kill_ack_msg[2] = { |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1608 | IWLAGN_BT_KILL_ACK_MASK_DEFAULT, |
| 1609 | IWLAGN_BT_KILL_ACK_CTS_MASK_SCO }; |
| 1610 | static const __le32 bt_kill_cts_msg[2] = { |
| 1611 | IWLAGN_BT_KILL_CTS_MASK_DEFAULT, |
| 1612 | IWLAGN_BT_KILL_ACK_CTS_MASK_SCO }; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1613 | |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1614 | kill_msk = (BT_UART_MSG_FRAME3SCOESCO_MSK & uart_msg->frame3) |
| 1615 | ? 1 : 0; |
| 1616 | if (priv->kill_ack_mask != bt_kill_ack_msg[kill_msk] || |
| 1617 | priv->kill_cts_mask != bt_kill_cts_msg[kill_msk]) { |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1618 | priv->bt_valid |= IWLAGN_BT_VALID_KILL_ACK_MASK; |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1619 | priv->kill_ack_mask = bt_kill_ack_msg[kill_msk]; |
| 1620 | priv->bt_valid |= IWLAGN_BT_VALID_KILL_CTS_MASK; |
| 1621 | priv->kill_cts_mask = bt_kill_cts_msg[kill_msk]; |
| 1622 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1623 | /* schedule to send runtime bt_config */ |
Emmanuel Grumbach | 74e28e4 | 2011-08-25 23:10:41 -0700 | [diff] [blame] | 1624 | queue_work(priv->shrd->workqueue, &priv->bt_runtime_config); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1625 | } |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1626 | } |
| 1627 | |
| 1628 | void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv, |
| 1629 | struct iwl_rx_mem_buffer *rxb) |
| 1630 | { |
| 1631 | unsigned long flags; |
| 1632 | struct iwl_rx_packet *pkt = rxb_addr(rxb); |
| 1633 | struct iwl_bt_coex_profile_notif *coex = &pkt->u.bt_coex_profile_notif; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1634 | struct iwl_bt_uart_msg *uart_msg = &coex->last_bt_uart_msg; |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1635 | |
Wey-Yi Guy | c4197c6 | 2011-02-06 08:56:35 -0800 | [diff] [blame] | 1636 | if (priv->bt_enable_flag == IWLAGN_BT_FLAG_COEX_MODE_DISABLED) { |
| 1637 | /* bt coex disabled */ |
| 1638 | return; |
| 1639 | } |
| 1640 | |
Wey-Yi Guy | fa7f141 | 2011-06-06 12:49:25 -0700 | [diff] [blame] | 1641 | IWL_DEBUG_COEX(priv, "BT Coex notification:\n"); |
| 1642 | IWL_DEBUG_COEX(priv, " status: %d\n", coex->bt_status); |
| 1643 | IWL_DEBUG_COEX(priv, " traffic load: %d\n", coex->bt_traffic_load); |
| 1644 | IWL_DEBUG_COEX(priv, " CI compliance: %d\n", |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1645 | coex->bt_ci_compliance); |
| 1646 | iwlagn_print_uartmsg(priv, uart_msg); |
| 1647 | |
Wey-Yi Guy | 66e863a5 | 2010-11-08 14:54:37 -0800 | [diff] [blame] | 1648 | priv->last_bt_traffic_load = priv->bt_traffic_load; |
Meenakshi Venkataraman | 207ecc5 | 2011-07-08 08:46:23 -0700 | [diff] [blame] | 1649 | priv->bt_is_sco = iwlagn_bt_traffic_is_sco(uart_msg); |
| 1650 | |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1651 | if (priv->iw_mode != NL80211_IFTYPE_ADHOC) { |
| 1652 | if (priv->bt_status != coex->bt_status || |
Wey-Yi Guy | 66e863a5 | 2010-11-08 14:54:37 -0800 | [diff] [blame] | 1653 | priv->last_bt_traffic_load != coex->bt_traffic_load) { |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1654 | if (coex->bt_status) { |
| 1655 | /* BT on */ |
| 1656 | if (!priv->bt_ch_announce) |
| 1657 | priv->bt_traffic_load = |
| 1658 | IWL_BT_COEX_TRAFFIC_LOAD_HIGH; |
| 1659 | else |
| 1660 | priv->bt_traffic_load = |
| 1661 | coex->bt_traffic_load; |
| 1662 | } else { |
| 1663 | /* BT off */ |
| 1664 | priv->bt_traffic_load = |
| 1665 | IWL_BT_COEX_TRAFFIC_LOAD_NONE; |
| 1666 | } |
| 1667 | priv->bt_status = coex->bt_status; |
Emmanuel Grumbach | 74e28e4 | 2011-08-25 23:10:41 -0700 | [diff] [blame] | 1668 | queue_work(priv->shrd->workqueue, |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1669 | &priv->bt_traffic_change_work); |
| 1670 | } |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1671 | } |
| 1672 | |
Wey-Yi Guy | 506aa15 | 2010-11-24 17:25:03 -0800 | [diff] [blame] | 1673 | iwlagn_set_kill_msk(priv, uart_msg); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1674 | |
| 1675 | /* FIXME: based on notification, adjust the prio_boost */ |
| 1676 | |
Emmanuel Grumbach | 10b15e6 | 2011-08-25 23:10:43 -0700 | [diff] [blame] | 1677 | spin_lock_irqsave(&priv->shrd->lock, flags); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1678 | priv->bt_ci_compliance = coex->bt_ci_compliance; |
Emmanuel Grumbach | 10b15e6 | 2011-08-25 23:10:43 -0700 | [diff] [blame] | 1679 | spin_unlock_irqrestore(&priv->shrd->lock, flags); |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1680 | } |
| 1681 | |
| 1682 | void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv) |
| 1683 | { |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1684 | priv->rx_handlers[REPLY_BT_COEX_PROFILE_NOTIF] = |
| 1685 | iwlagn_bt_coex_profile_notif; |
| 1686 | } |
| 1687 | |
| 1688 | void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv) |
| 1689 | { |
Wey-Yi Guy | b6e116e | 2010-08-23 07:57:14 -0700 | [diff] [blame] | 1690 | INIT_WORK(&priv->bt_traffic_change_work, |
| 1691 | iwlagn_bt_traffic_change_work); |
| 1692 | } |
| 1693 | |
| 1694 | void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv) |
| 1695 | { |
| 1696 | cancel_work_sync(&priv->bt_traffic_change_work); |
| 1697 | } |
Johannes Berg | 5de3306 | 2010-09-22 18:01:58 +0200 | [diff] [blame] | 1698 | |
| 1699 | static bool is_single_rx_stream(struct iwl_priv *priv) |
| 1700 | { |
| 1701 | return priv->current_ht_config.smps == IEEE80211_SMPS_STATIC || |
| 1702 | priv->current_ht_config.single_chain_sufficient; |
| 1703 | } |
| 1704 | |
| 1705 | #define IWL_NUM_RX_CHAINS_MULTIPLE 3 |
| 1706 | #define IWL_NUM_RX_CHAINS_SINGLE 2 |
| 1707 | #define IWL_NUM_IDLE_CHAINS_DUAL 2 |
| 1708 | #define IWL_NUM_IDLE_CHAINS_SINGLE 1 |
| 1709 | |
| 1710 | /* |
| 1711 | * Determine how many receiver/antenna chains to use. |
| 1712 | * |
| 1713 | * More provides better reception via diversity. Fewer saves power |
| 1714 | * at the expense of throughput, but only when not in powersave to |
| 1715 | * start with. |
| 1716 | * |
| 1717 | * MIMO (dual stream) requires at least 2, but works better with 3. |
| 1718 | * This does not determine *which* chains to use, just how many. |
| 1719 | */ |
| 1720 | static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) |
| 1721 | { |
| 1722 | if (priv->cfg->bt_params && |
| 1723 | priv->cfg->bt_params->advanced_bt_coexist && |
| 1724 | (priv->bt_full_concurrent || |
| 1725 | priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { |
| 1726 | /* |
| 1727 | * only use chain 'A' in bt high traffic load or |
| 1728 | * full concurrency mode |
| 1729 | */ |
| 1730 | return IWL_NUM_RX_CHAINS_SINGLE; |
| 1731 | } |
| 1732 | /* # of Rx chains to use when expecting MIMO. */ |
| 1733 | if (is_single_rx_stream(priv)) |
| 1734 | return IWL_NUM_RX_CHAINS_SINGLE; |
| 1735 | else |
| 1736 | return IWL_NUM_RX_CHAINS_MULTIPLE; |
| 1737 | } |
| 1738 | |
| 1739 | /* |
| 1740 | * When we are in power saving mode, unless device support spatial |
| 1741 | * multiplexing power save, use the active count for rx chain count. |
| 1742 | */ |
| 1743 | static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt) |
| 1744 | { |
| 1745 | /* # Rx chains when idling, depending on SMPS mode */ |
| 1746 | switch (priv->current_ht_config.smps) { |
| 1747 | case IEEE80211_SMPS_STATIC: |
| 1748 | case IEEE80211_SMPS_DYNAMIC: |
| 1749 | return IWL_NUM_IDLE_CHAINS_SINGLE; |
| 1750 | case IEEE80211_SMPS_OFF: |
| 1751 | return active_cnt; |
| 1752 | default: |
| 1753 | WARN(1, "invalid SMPS mode %d", |
| 1754 | priv->current_ht_config.smps); |
| 1755 | return active_cnt; |
| 1756 | } |
| 1757 | } |
| 1758 | |
| 1759 | /* up to 4 chains */ |
| 1760 | static u8 iwl_count_chain_bitmap(u32 chain_bitmap) |
| 1761 | { |
| 1762 | u8 res; |
| 1763 | res = (chain_bitmap & BIT(0)) >> 0; |
| 1764 | res += (chain_bitmap & BIT(1)) >> 1; |
| 1765 | res += (chain_bitmap & BIT(2)) >> 2; |
| 1766 | res += (chain_bitmap & BIT(3)) >> 3; |
| 1767 | return res; |
| 1768 | } |
| 1769 | |
| 1770 | /** |
| 1771 | * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image |
| 1772 | * |
| 1773 | * Selects how many and which Rx receivers/antennas/chains to use. |
| 1774 | * This should not be used for scan command ... it puts data in wrong place. |
| 1775 | */ |
| 1776 | void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx) |
| 1777 | { |
| 1778 | bool is_single = is_single_rx_stream(priv); |
Emmanuel Grumbach | 63013ae | 2011-08-25 23:10:42 -0700 | [diff] [blame] | 1779 | bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->shrd->status); |
Johannes Berg | 5de3306 | 2010-09-22 18:01:58 +0200 | [diff] [blame] | 1780 | u8 idle_rx_cnt, active_rx_cnt, valid_rx_cnt; |
| 1781 | u32 active_chains; |
| 1782 | u16 rx_chain; |
| 1783 | |
| 1784 | /* Tell uCode which antennas are actually connected. |
| 1785 | * Before first association, we assume all antennas are connected. |
| 1786 | * Just after first association, iwl_chain_noise_calibration() |
| 1787 | * checks which antennas actually *are* connected. */ |
| 1788 | if (priv->chain_noise_data.active_chains) |
| 1789 | active_chains = priv->chain_noise_data.active_chains; |
| 1790 | else |
Emmanuel Grumbach | d618912 | 2011-08-25 23:10:39 -0700 | [diff] [blame] | 1791 | active_chains = hw_params(priv).valid_rx_ant; |
Johannes Berg | 5de3306 | 2010-09-22 18:01:58 +0200 | [diff] [blame] | 1792 | |
| 1793 | if (priv->cfg->bt_params && |
| 1794 | priv->cfg->bt_params->advanced_bt_coexist && |
| 1795 | (priv->bt_full_concurrent || |
| 1796 | priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { |
| 1797 | /* |
| 1798 | * only use chain 'A' in bt high traffic load or |
| 1799 | * full concurrency mode |
| 1800 | */ |
| 1801 | active_chains = first_antenna(active_chains); |
| 1802 | } |
| 1803 | |
| 1804 | rx_chain = active_chains << RXON_RX_CHAIN_VALID_POS; |
| 1805 | |
| 1806 | /* How many receivers should we use? */ |
| 1807 | active_rx_cnt = iwl_get_active_rx_chain_count(priv); |
| 1808 | idle_rx_cnt = iwl_get_idle_rx_chain_count(priv, active_rx_cnt); |
| 1809 | |
| 1810 | |
| 1811 | /* correct rx chain count according hw settings |
| 1812 | * and chain noise calibration |
| 1813 | */ |
| 1814 | valid_rx_cnt = iwl_count_chain_bitmap(active_chains); |
| 1815 | if (valid_rx_cnt < active_rx_cnt) |
| 1816 | active_rx_cnt = valid_rx_cnt; |
| 1817 | |
| 1818 | if (valid_rx_cnt < idle_rx_cnt) |
| 1819 | idle_rx_cnt = valid_rx_cnt; |
| 1820 | |
| 1821 | rx_chain |= active_rx_cnt << RXON_RX_CHAIN_MIMO_CNT_POS; |
| 1822 | rx_chain |= idle_rx_cnt << RXON_RX_CHAIN_CNT_POS; |
| 1823 | |
| 1824 | ctx->staging.rx_chain = cpu_to_le16(rx_chain); |
| 1825 | |
| 1826 | if (!is_single && (active_rx_cnt >= IWL_NUM_RX_CHAINS_SINGLE) && is_cam) |
| 1827 | ctx->staging.rx_chain |= RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| 1828 | else |
| 1829 | ctx->staging.rx_chain &= ~RXON_RX_CHAIN_MIMO_FORCE_MSK; |
| 1830 | |
| 1831 | IWL_DEBUG_ASSOC(priv, "rx_chain=0x%X active=%d idle=%d\n", |
| 1832 | ctx->staging.rx_chain, |
| 1833 | active_rx_cnt, idle_rx_cnt); |
| 1834 | |
| 1835 | WARN_ON(active_rx_cnt == 0 || idle_rx_cnt == 0 || |
| 1836 | active_rx_cnt < idle_rx_cnt); |
| 1837 | } |
Johannes Berg | facd982 | 2010-09-22 18:02:05 +0200 | [diff] [blame] | 1838 | |
| 1839 | u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid) |
| 1840 | { |
| 1841 | int i; |
| 1842 | u8 ind = ant; |
| 1843 | |
| 1844 | if (priv->band == IEEE80211_BAND_2GHZ && |
| 1845 | priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) |
| 1846 | return 0; |
| 1847 | |
| 1848 | for (i = 0; i < RATE_ANT_NUM - 1; i++) { |
| 1849 | ind = (ind + 1) < RATE_ANT_NUM ? ind + 1 : 0; |
| 1850 | if (valid & BIT(ind)) |
| 1851 | return ind; |
| 1852 | } |
| 1853 | return ant; |
| 1854 | } |
Johannes Berg | fed7329 | 2010-09-22 18:02:06 +0200 | [diff] [blame] | 1855 | |
| 1856 | static const char *get_csr_string(int cmd) |
| 1857 | { |
| 1858 | switch (cmd) { |
| 1859 | IWL_CMD(CSR_HW_IF_CONFIG_REG); |
| 1860 | IWL_CMD(CSR_INT_COALESCING); |
| 1861 | IWL_CMD(CSR_INT); |
| 1862 | IWL_CMD(CSR_INT_MASK); |
| 1863 | IWL_CMD(CSR_FH_INT_STATUS); |
| 1864 | IWL_CMD(CSR_GPIO_IN); |
| 1865 | IWL_CMD(CSR_RESET); |
| 1866 | IWL_CMD(CSR_GP_CNTRL); |
| 1867 | IWL_CMD(CSR_HW_REV); |
| 1868 | IWL_CMD(CSR_EEPROM_REG); |
| 1869 | IWL_CMD(CSR_EEPROM_GP); |
| 1870 | IWL_CMD(CSR_OTP_GP_REG); |
| 1871 | IWL_CMD(CSR_GIO_REG); |
| 1872 | IWL_CMD(CSR_GP_UCODE_REG); |
| 1873 | IWL_CMD(CSR_GP_DRIVER_REG); |
| 1874 | IWL_CMD(CSR_UCODE_DRV_GP1); |
| 1875 | IWL_CMD(CSR_UCODE_DRV_GP2); |
| 1876 | IWL_CMD(CSR_LED_REG); |
| 1877 | IWL_CMD(CSR_DRAM_INT_TBL_REG); |
| 1878 | IWL_CMD(CSR_GIO_CHICKEN_BITS); |
| 1879 | IWL_CMD(CSR_ANA_PLL_CFG); |
| 1880 | IWL_CMD(CSR_HW_REV_WA_REG); |
| 1881 | IWL_CMD(CSR_DBG_HPET_MEM_REG); |
| 1882 | default: |
| 1883 | return "UNKNOWN"; |
| 1884 | } |
| 1885 | } |
| 1886 | |
| 1887 | void iwl_dump_csr(struct iwl_priv *priv) |
| 1888 | { |
| 1889 | int i; |
Joe Perches | 20407ed | 2010-11-20 18:38:57 -0800 | [diff] [blame] | 1890 | static const u32 csr_tbl[] = { |
Johannes Berg | fed7329 | 2010-09-22 18:02:06 +0200 | [diff] [blame] | 1891 | CSR_HW_IF_CONFIG_REG, |
| 1892 | CSR_INT_COALESCING, |
| 1893 | CSR_INT, |
| 1894 | CSR_INT_MASK, |
| 1895 | CSR_FH_INT_STATUS, |
| 1896 | CSR_GPIO_IN, |
| 1897 | CSR_RESET, |
| 1898 | CSR_GP_CNTRL, |
| 1899 | CSR_HW_REV, |
| 1900 | CSR_EEPROM_REG, |
| 1901 | CSR_EEPROM_GP, |
| 1902 | CSR_OTP_GP_REG, |
| 1903 | CSR_GIO_REG, |
| 1904 | CSR_GP_UCODE_REG, |
| 1905 | CSR_GP_DRIVER_REG, |
| 1906 | CSR_UCODE_DRV_GP1, |
| 1907 | CSR_UCODE_DRV_GP2, |
| 1908 | CSR_LED_REG, |
| 1909 | CSR_DRAM_INT_TBL_REG, |
| 1910 | CSR_GIO_CHICKEN_BITS, |
| 1911 | CSR_ANA_PLL_CFG, |
| 1912 | CSR_HW_REV_WA_REG, |
| 1913 | CSR_DBG_HPET_MEM_REG |
| 1914 | }; |
| 1915 | IWL_ERR(priv, "CSR values:\n"); |
| 1916 | IWL_ERR(priv, "(2nd byte of CSR_INT_COALESCING is " |
| 1917 | "CSR_INT_PERIODIC_REG)\n"); |
| 1918 | for (i = 0; i < ARRAY_SIZE(csr_tbl); i++) { |
| 1919 | IWL_ERR(priv, " %25s: 0X%08x\n", |
| 1920 | get_csr_string(csr_tbl[i]), |
| 1921 | iwl_read32(priv, csr_tbl[i])); |
| 1922 | } |
| 1923 | } |
Johannes Berg | 84fac3d | 2010-09-22 18:02:07 +0200 | [diff] [blame] | 1924 | |
| 1925 | static const char *get_fh_string(int cmd) |
| 1926 | { |
| 1927 | switch (cmd) { |
| 1928 | IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); |
| 1929 | IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); |
| 1930 | IWL_CMD(FH_RSCSR_CHNL0_WPTR); |
| 1931 | IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); |
| 1932 | IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); |
| 1933 | IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); |
| 1934 | IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); |
| 1935 | IWL_CMD(FH_TSSR_TX_STATUS_REG); |
| 1936 | IWL_CMD(FH_TSSR_TX_ERROR_REG); |
| 1937 | default: |
| 1938 | return "UNKNOWN"; |
| 1939 | } |
| 1940 | } |
| 1941 | |
| 1942 | int iwl_dump_fh(struct iwl_priv *priv, char **buf, bool display) |
| 1943 | { |
| 1944 | int i; |
| 1945 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1946 | int pos = 0; |
| 1947 | size_t bufsz = 0; |
| 1948 | #endif |
Joe Perches | 20407ed | 2010-11-20 18:38:57 -0800 | [diff] [blame] | 1949 | static const u32 fh_tbl[] = { |
Johannes Berg | 84fac3d | 2010-09-22 18:02:07 +0200 | [diff] [blame] | 1950 | FH_RSCSR_CHNL0_STTS_WPTR_REG, |
| 1951 | FH_RSCSR_CHNL0_RBDCB_BASE_REG, |
| 1952 | FH_RSCSR_CHNL0_WPTR, |
| 1953 | FH_MEM_RCSR_CHNL0_CONFIG_REG, |
| 1954 | FH_MEM_RSSR_SHARED_CTRL_REG, |
| 1955 | FH_MEM_RSSR_RX_STATUS_REG, |
| 1956 | FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, |
| 1957 | FH_TSSR_TX_STATUS_REG, |
| 1958 | FH_TSSR_TX_ERROR_REG |
| 1959 | }; |
| 1960 | #ifdef CONFIG_IWLWIFI_DEBUG |
| 1961 | if (display) { |
| 1962 | bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; |
| 1963 | *buf = kmalloc(bufsz, GFP_KERNEL); |
| 1964 | if (!*buf) |
| 1965 | return -ENOMEM; |
| 1966 | pos += scnprintf(*buf + pos, bufsz - pos, |
| 1967 | "FH register values:\n"); |
| 1968 | for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { |
| 1969 | pos += scnprintf(*buf + pos, bufsz - pos, |
| 1970 | " %34s: 0X%08x\n", |
| 1971 | get_fh_string(fh_tbl[i]), |
| 1972 | iwl_read_direct32(priv, fh_tbl[i])); |
| 1973 | } |
| 1974 | return pos; |
| 1975 | } |
| 1976 | #endif |
| 1977 | IWL_ERR(priv, "FH register values:\n"); |
| 1978 | for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) { |
| 1979 | IWL_ERR(priv, " %34s: 0X%08x\n", |
| 1980 | get_fh_string(fh_tbl[i]), |
| 1981 | iwl_read_direct32(priv, fh_tbl[i])); |
| 1982 | } |
| 1983 | return 0; |
| 1984 | } |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 1985 | |
| 1986 | /* notification wait support */ |
| 1987 | void iwlagn_init_notification_wait(struct iwl_priv *priv, |
| 1988 | struct iwl_notification_wait *wait_entry, |
Johannes Berg | 09f18af | 2011-04-13 03:14:47 -0700 | [diff] [blame] | 1989 | u8 cmd, |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 1990 | void (*fn)(struct iwl_priv *priv, |
Johannes Berg | 09f18af | 2011-04-13 03:14:47 -0700 | [diff] [blame] | 1991 | struct iwl_rx_packet *pkt, |
| 1992 | void *data), |
| 1993 | void *fn_data) |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 1994 | { |
| 1995 | wait_entry->fn = fn; |
Johannes Berg | 09f18af | 2011-04-13 03:14:47 -0700 | [diff] [blame] | 1996 | wait_entry->fn_data = fn_data; |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 1997 | wait_entry->cmd = cmd; |
| 1998 | wait_entry->triggered = false; |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 1999 | wait_entry->aborted = false; |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2000 | |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2001 | spin_lock_bh(&priv->notif_wait_lock); |
| 2002 | list_add(&wait_entry->list, &priv->notif_waits); |
| 2003 | spin_unlock_bh(&priv->notif_wait_lock); |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2004 | } |
| 2005 | |
Johannes Berg | a8674a1 | 2011-04-13 03:14:48 -0700 | [diff] [blame] | 2006 | int iwlagn_wait_notification(struct iwl_priv *priv, |
| 2007 | struct iwl_notification_wait *wait_entry, |
| 2008 | unsigned long timeout) |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2009 | { |
| 2010 | int ret; |
| 2011 | |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2012 | ret = wait_event_timeout(priv->notif_waitq, |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 2013 | wait_entry->triggered || wait_entry->aborted, |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2014 | timeout); |
| 2015 | |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2016 | spin_lock_bh(&priv->notif_wait_lock); |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2017 | list_del(&wait_entry->list); |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2018 | spin_unlock_bh(&priv->notif_wait_lock); |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2019 | |
Johannes Berg | e74fe23 | 2011-04-13 03:14:49 -0700 | [diff] [blame] | 2020 | if (wait_entry->aborted) |
| 2021 | return -EIO; |
| 2022 | |
Johannes Berg | a8674a1 | 2011-04-13 03:14:48 -0700 | [diff] [blame] | 2023 | /* return value is always >= 0 */ |
| 2024 | if (ret <= 0) |
| 2025 | return -ETIMEDOUT; |
| 2026 | return 0; |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2027 | } |
| 2028 | |
| 2029 | void iwlagn_remove_notification(struct iwl_priv *priv, |
| 2030 | struct iwl_notification_wait *wait_entry) |
| 2031 | { |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2032 | spin_lock_bh(&priv->notif_wait_lock); |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2033 | list_del(&wait_entry->list); |
Wey-Yi Guy | 898ed67 | 2011-07-13 08:38:57 -0700 | [diff] [blame] | 2034 | spin_unlock_bh(&priv->notif_wait_lock); |
Johannes Berg | 7194207c | 2011-01-04 16:22:00 -0800 | [diff] [blame] | 2035 | } |