| /****************************************************************************** |
| * |
| * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved. |
| * |
| * Portions of this file are derived from the ipw3945 project, as well |
| * as portions of the ieee80211 subsystem header files. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA |
| * |
| * The full GNU General Public License is included in this distribution in the |
| * file called LICENSE. |
| * |
| * Contact Information: |
| * Intel Linux Wireless <ilw@linux.intel.com> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| *****************************************************************************/ |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/dma-mapping.h> |
| #include <linux/delay.h> |
| #include <linux/sched.h> |
| #include <linux/skbuff.h> |
| #include <linux/netdevice.h> |
| #include <linux/firmware.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_arp.h> |
| |
| #include <net/mac80211.h> |
| |
| #include <asm/div64.h> |
| |
| #include "iwl-eeprom.h" |
| #include "iwl-dev.h" |
| #include "iwl-core.h" |
| #include "iwl-io.h" |
| #include "iwl-helpers.h" |
| #include "iwl-sta.h" |
| #include "iwl-agn-calib.h" |
| #include "iwl-agn.h" |
| #include "iwl-shared.h" |
| #include "iwl-bus.h" |
| #include "iwl-trans.h" |
| |
| /****************************************************************************** |
| * |
| * module boiler plate |
| * |
| ******************************************************************************/ |
| |
| /* |
| * module name, copyright, version, etc. |
| */ |
| #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux" |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| #define VD "d" |
| #else |
| #define VD |
| #endif |
| |
| #define DRV_VERSION IWLWIFI_VERSION VD |
| |
| |
| MODULE_DESCRIPTION(DRV_DESCRIPTION); |
| MODULE_VERSION(DRV_VERSION); |
| MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR); |
| MODULE_LICENSE("GPL"); |
| |
| void iwl_update_chain_flags(struct iwl_priv *priv) |
| { |
| struct iwl_rxon_context *ctx; |
| |
| for_each_context(priv, ctx) { |
| iwlagn_set_rxon_chain(priv, ctx); |
| if (ctx->active.rx_chain != ctx->staging.rx_chain) |
| iwlagn_commit_rxon(priv, ctx); |
| } |
| } |
| |
| /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */ |
| static void iwl_set_beacon_tim(struct iwl_priv *priv, |
| struct iwl_tx_beacon_cmd *tx_beacon_cmd, |
| u8 *beacon, u32 frame_size) |
| { |
| u16 tim_idx; |
| struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon; |
| |
| /* |
| * The index is relative to frame start but we start looking at the |
| * variable-length part of the beacon. |
| */ |
| tim_idx = mgmt->u.beacon.variable - beacon; |
| |
| /* Parse variable-length elements of beacon to find WLAN_EID_TIM */ |
| while ((tim_idx < (frame_size - 2)) && |
| (beacon[tim_idx] != WLAN_EID_TIM)) |
| tim_idx += beacon[tim_idx+1] + 2; |
| |
| /* If TIM field was found, set variables */ |
| if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) { |
| tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx); |
| tx_beacon_cmd->tim_size = beacon[tim_idx+1]; |
| } else |
| IWL_WARN(priv, "Unable to find TIM Element in beacon\n"); |
| } |
| |
| int iwlagn_send_beacon_cmd(struct iwl_priv *priv) |
| { |
| struct iwl_tx_beacon_cmd *tx_beacon_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = REPLY_TX_BEACON, |
| .flags = CMD_SYNC, |
| }; |
| struct ieee80211_tx_info *info; |
| u32 frame_size; |
| u32 rate_flags; |
| u32 rate; |
| |
| /* |
| * We have to set up the TX command, the TX Beacon command, and the |
| * beacon contents. |
| */ |
| |
| lockdep_assert_held(&priv->shrd->mutex); |
| |
| if (!priv->beacon_ctx) { |
| IWL_ERR(priv, "trying to build beacon w/o beacon context!\n"); |
| return 0; |
| } |
| |
| if (WARN_ON(!priv->beacon_skb)) |
| return -EINVAL; |
| |
| /* Allocate beacon command */ |
| if (!priv->beacon_cmd) |
| priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL); |
| tx_beacon_cmd = priv->beacon_cmd; |
| if (!tx_beacon_cmd) |
| return -ENOMEM; |
| |
| frame_size = priv->beacon_skb->len; |
| |
| /* Set up TX command fields */ |
| tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size); |
| tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id; |
| tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE; |
| tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK | |
| TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK; |
| |
| /* Set up TX beacon command fields */ |
| iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data, |
| frame_size); |
| |
| /* Set up packet rate and flags */ |
| info = IEEE80211_SKB_CB(priv->beacon_skb); |
| |
| /* |
| * Let's set up the rate at least somewhat correctly; |
| * it will currently not actually be used by the uCode, |
| * it uses the broadcast station's rate instead. |
| */ |
| if (info->control.rates[0].idx < 0 || |
| info->control.rates[0].flags & IEEE80211_TX_RC_MCS) |
| rate = 0; |
| else |
| rate = info->control.rates[0].idx; |
| |
| priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, |
| hw_params(priv).valid_tx_ant); |
| rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant); |
| |
| /* In mac80211, rates for 5 GHz start at 0 */ |
| if (info->band == IEEE80211_BAND_5GHZ) |
| rate += IWL_FIRST_OFDM_RATE; |
| else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE) |
| rate_flags |= RATE_MCS_CCK_MSK; |
| |
| tx_beacon_cmd->tx.rate_n_flags = |
| iwl_hw_set_rate_n_flags(rate, rate_flags); |
| |
| /* Submit command */ |
| cmd.len[0] = sizeof(*tx_beacon_cmd); |
| cmd.data[0] = tx_beacon_cmd; |
| cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
| cmd.len[1] = frame_size; |
| cmd.data[1] = priv->beacon_skb->data; |
| cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY; |
| |
| return iwl_trans_send_cmd(trans(priv), &cmd); |
| } |
| |
| static void iwl_bg_beacon_update(struct work_struct *work) |
| { |
| struct iwl_priv *priv = |
| container_of(work, struct iwl_priv, beacon_update); |
| struct sk_buff *beacon; |
| |
| mutex_lock(&priv->shrd->mutex); |
| if (!priv->beacon_ctx) { |
| IWL_ERR(priv, "updating beacon w/o beacon context!\n"); |
| goto out; |
| } |
| |
| if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) { |
| /* |
| * The ucode will send beacon notifications even in |
| * IBSS mode, but we don't want to process them. But |
| * we need to defer the type check to here due to |
| * requiring locking around the beacon_ctx access. |
| */ |
| goto out; |
| } |
| |
| /* Pull updated AP beacon from mac80211. will fail if not in AP mode */ |
| beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif); |
| if (!beacon) { |
| IWL_ERR(priv, "update beacon failed -- keeping old\n"); |
| goto out; |
| } |
| |
| /* new beacon skb is allocated every time; dispose previous.*/ |
| dev_kfree_skb(priv->beacon_skb); |
| |
| priv->beacon_skb = beacon; |
| |
| iwlagn_send_beacon_cmd(priv); |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| static void iwl_bg_bt_runtime_config(struct work_struct *work) |
| { |
| struct iwl_priv *priv = |
| container_of(work, struct iwl_priv, bt_runtime_config); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| return; |
| |
| /* dont send host command if rf-kill is on */ |
| if (!iwl_is_ready_rf(priv)) |
| return; |
| iwlagn_send_advance_bt_config(priv); |
| } |
| |
| static void iwl_bg_bt_full_concurrency(struct work_struct *work) |
| { |
| struct iwl_priv *priv = |
| container_of(work, struct iwl_priv, bt_full_concurrency); |
| struct iwl_rxon_context *ctx; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| goto out; |
| |
| /* dont send host command if rf-kill is on */ |
| if (!iwl_is_ready_rf(priv)) |
| goto out; |
| |
| IWL_DEBUG_INFO(priv, "BT coex in %s mode\n", |
| priv->bt_full_concurrent ? |
| "full concurrency" : "3-wire"); |
| |
| /* |
| * LQ & RXON updated cmds must be sent before BT Config cmd |
| * to avoid 3-wire collisions |
| */ |
| for_each_context(priv, ctx) { |
| iwlagn_set_rxon_chain(priv, ctx); |
| iwlagn_commit_rxon(priv, ctx); |
| } |
| |
| iwlagn_send_advance_bt_config(priv); |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| /** |
| * iwl_bg_statistics_periodic - Timer callback to queue statistics |
| * |
| * This callback is provided in order to send a statistics request. |
| * |
| * This timer function is continually reset to execute within |
| * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION |
| * was received. We need to ensure we receive the statistics in order |
| * to update the temperature used for calibrating the TXPOWER. |
| */ |
| static void iwl_bg_statistics_periodic(unsigned long data) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)data; |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| return; |
| |
| /* dont send host command if rf-kill is on */ |
| if (!iwl_is_ready_rf(priv)) |
| return; |
| |
| iwl_send_statistics_request(priv, CMD_ASYNC, false); |
| } |
| |
| |
| static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base, |
| u32 start_idx, u32 num_events, |
| u32 mode) |
| { |
| u32 i; |
| u32 ptr; /* SRAM byte address of log data */ |
| u32 ev, time, data; /* event log data */ |
| unsigned long reg_flags; |
| |
| if (mode == 0) |
| ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32)); |
| else |
| ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32)); |
| |
| /* Make sure device is powered up for SRAM reads */ |
| spin_lock_irqsave(&priv->reg_lock, reg_flags); |
| if (iwl_grab_nic_access(priv)) { |
| spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| return; |
| } |
| |
| /* Set starting address; reads will auto-increment */ |
| iwl_write32(priv, HBUS_TARG_MEM_RADDR, ptr); |
| rmb(); |
| |
| /* |
| * "time" is actually "data" for mode 0 (no timestamp). |
| * place event id # at far right for easier visual parsing. |
| */ |
| for (i = 0; i < num_events; i++) { |
| ev = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
| time = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
| if (mode == 0) { |
| trace_iwlwifi_dev_ucode_cont_event(priv, |
| 0, time, ev); |
| } else { |
| data = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
| trace_iwlwifi_dev_ucode_cont_event(priv, |
| time, data, ev); |
| } |
| } |
| /* Allow device to power down */ |
| iwl_release_nic_access(priv); |
| spin_unlock_irqrestore(&priv->reg_lock, reg_flags); |
| } |
| |
| static void iwl_continuous_event_trace(struct iwl_priv *priv) |
| { |
| u32 capacity; /* event log capacity in # entries */ |
| u32 base; /* SRAM byte address of event log header */ |
| u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */ |
| u32 num_wraps; /* # times uCode wrapped to top of log */ |
| u32 next_entry; /* index of next entry to be written by uCode */ |
| |
| base = priv->device_pointers.error_event_table; |
| if (iwlagn_hw_valid_rtc_data_addr(base)) { |
| capacity = iwl_read_targ_mem(priv, base); |
| num_wraps = iwl_read_targ_mem(priv, base + (2 * sizeof(u32))); |
| mode = iwl_read_targ_mem(priv, base + (1 * sizeof(u32))); |
| next_entry = iwl_read_targ_mem(priv, base + (3 * sizeof(u32))); |
| } else |
| return; |
| |
| if (num_wraps == priv->event_log.num_wraps) { |
| iwl_print_cont_event_trace(priv, |
| base, priv->event_log.next_entry, |
| next_entry - priv->event_log.next_entry, |
| mode); |
| priv->event_log.non_wraps_count++; |
| } else { |
| if ((num_wraps - priv->event_log.num_wraps) > 1) |
| priv->event_log.wraps_more_count++; |
| else |
| priv->event_log.wraps_once_count++; |
| trace_iwlwifi_dev_ucode_wrap_event(priv, |
| num_wraps - priv->event_log.num_wraps, |
| next_entry, priv->event_log.next_entry); |
| if (next_entry < priv->event_log.next_entry) { |
| iwl_print_cont_event_trace(priv, base, |
| priv->event_log.next_entry, |
| capacity - priv->event_log.next_entry, |
| mode); |
| |
| iwl_print_cont_event_trace(priv, base, 0, |
| next_entry, mode); |
| } else { |
| iwl_print_cont_event_trace(priv, base, |
| next_entry, capacity - next_entry, |
| mode); |
| |
| iwl_print_cont_event_trace(priv, base, 0, |
| next_entry, mode); |
| } |
| } |
| priv->event_log.num_wraps = num_wraps; |
| priv->event_log.next_entry = next_entry; |
| } |
| |
| /** |
| * iwl_bg_ucode_trace - Timer callback to log ucode event |
| * |
| * The timer is continually set to execute every |
| * UCODE_TRACE_PERIOD milliseconds after the last timer expired |
| * this function is to perform continuous uCode event logging operation |
| * if enabled |
| */ |
| static void iwl_bg_ucode_trace(unsigned long data) |
| { |
| struct iwl_priv *priv = (struct iwl_priv *)data; |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| return; |
| |
| if (priv->event_log.ucode_trace) { |
| iwl_continuous_event_trace(priv); |
| /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */ |
| mod_timer(&priv->ucode_trace, |
| jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD)); |
| } |
| } |
| |
| static void iwl_bg_tx_flush(struct work_struct *work) |
| { |
| struct iwl_priv *priv = |
| container_of(work, struct iwl_priv, tx_flush); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| return; |
| |
| /* do nothing if rf-kill is on */ |
| if (!iwl_is_ready_rf(priv)) |
| return; |
| |
| IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); |
| iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); |
| } |
| |
| /***************************************************************************** |
| * |
| * sysfs attributes |
| * |
| *****************************************************************************/ |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| |
| /* |
| * The following adds a new attribute to the sysfs representation |
| * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/) |
| * used for controlling the debug level. |
| * |
| * See the level definitions in iwl for details. |
| * |
| * The debug_level being managed using sysfs below is a per device debug |
| * level that is used instead of the global debug level if it (the per |
| * device debug level) is set. |
| */ |
| static ssize_t show_debug_level(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct iwl_shared *shrd = dev_get_drvdata(d); |
| return sprintf(buf, "0x%08X\n", iwl_get_debug_level(shrd)); |
| } |
| static ssize_t store_debug_level(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct iwl_shared *shrd = dev_get_drvdata(d); |
| struct iwl_priv *priv = shrd->priv; |
| unsigned long val; |
| int ret; |
| |
| ret = strict_strtoul(buf, 0, &val); |
| if (ret) |
| IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf); |
| else { |
| shrd->dbg_level_dev = val; |
| if (iwl_alloc_traffic_mem(priv)) |
| IWL_ERR(shrd->priv, |
| "Not enough memory to generate traffic log\n"); |
| } |
| return strnlen(buf, count); |
| } |
| |
| static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO, |
| show_debug_level, store_debug_level); |
| |
| |
| #endif /* CONFIG_IWLWIFI_DEBUG */ |
| |
| |
| static ssize_t show_temperature(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct iwl_shared *shrd = dev_get_drvdata(d); |
| struct iwl_priv *priv = shrd->priv; |
| |
| if (!iwl_is_alive(priv)) |
| return -EAGAIN; |
| |
| return sprintf(buf, "%d\n", priv->temperature); |
| } |
| |
| static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL); |
| |
| static ssize_t show_tx_power(struct device *d, |
| struct device_attribute *attr, char *buf) |
| { |
| struct iwl_priv *priv = dev_get_drvdata(d); |
| |
| if (!iwl_is_ready_rf(priv)) |
| return sprintf(buf, "off\n"); |
| else |
| return sprintf(buf, "%d\n", priv->tx_power_user_lmt); |
| } |
| |
| static ssize_t store_tx_power(struct device *d, |
| struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct iwl_priv *priv = dev_get_drvdata(d); |
| unsigned long val; |
| int ret; |
| |
| ret = strict_strtoul(buf, 10, &val); |
| if (ret) |
| IWL_INFO(priv, "%s is not in decimal form.\n", buf); |
| else { |
| ret = iwl_set_tx_power(priv, val, false); |
| if (ret) |
| IWL_ERR(priv, "failed setting tx power (0x%d).\n", |
| ret); |
| else |
| ret = count; |
| } |
| return ret; |
| } |
| |
| static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power); |
| |
| static struct attribute *iwl_sysfs_entries[] = { |
| &dev_attr_temperature.attr, |
| &dev_attr_tx_power.attr, |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| &dev_attr_debug_level.attr, |
| #endif |
| NULL |
| }; |
| |
| static struct attribute_group iwl_attribute_group = { |
| .name = NULL, /* put in device directory */ |
| .attrs = iwl_sysfs_entries, |
| }; |
| |
| /****************************************************************************** |
| * |
| * uCode download functions |
| * |
| ******************************************************************************/ |
| |
| static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc) |
| { |
| if (desc->v_addr) |
| dma_free_coherent(priv->bus->dev, desc->len, |
| desc->v_addr, desc->p_addr); |
| desc->v_addr = NULL; |
| desc->len = 0; |
| } |
| |
| static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img) |
| { |
| iwl_free_fw_desc(priv, &img->code); |
| iwl_free_fw_desc(priv, &img->data); |
| } |
| |
| static void iwl_dealloc_ucode(struct iwl_priv *priv) |
| { |
| iwl_free_fw_img(priv, &priv->ucode_rt); |
| iwl_free_fw_img(priv, &priv->ucode_init); |
| iwl_free_fw_img(priv, &priv->ucode_wowlan); |
| } |
| |
| static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc, |
| const void *data, size_t len) |
| { |
| if (!len) { |
| desc->v_addr = NULL; |
| return -EINVAL; |
| } |
| |
| desc->v_addr = dma_alloc_coherent(priv->bus->dev, len, |
| &desc->p_addr, GFP_KERNEL); |
| if (!desc->v_addr) |
| return -ENOMEM; |
| |
| desc->len = len; |
| memcpy(desc->v_addr, data, len); |
| return 0; |
| } |
| |
| static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) |
| { |
| static const u8 iwlagn_bss_ac_to_fifo[] = { |
| IWL_TX_FIFO_VO, |
| IWL_TX_FIFO_VI, |
| IWL_TX_FIFO_BE, |
| IWL_TX_FIFO_BK, |
| }; |
| static const u8 iwlagn_bss_ac_to_queue[] = { |
| 0, 1, 2, 3, |
| }; |
| static const u8 iwlagn_pan_ac_to_fifo[] = { |
| IWL_TX_FIFO_VO_IPAN, |
| IWL_TX_FIFO_VI_IPAN, |
| IWL_TX_FIFO_BE_IPAN, |
| IWL_TX_FIFO_BK_IPAN, |
| }; |
| static const u8 iwlagn_pan_ac_to_queue[] = { |
| 7, 6, 5, 4, |
| }; |
| int i; |
| |
| /* |
| * The default context is always valid, |
| * the PAN context depends on uCode. |
| */ |
| priv->valid_contexts = BIT(IWL_RXON_CTX_BSS); |
| if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) |
| priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN); |
| |
| for (i = 0; i < NUM_IWL_RXON_CTX; i++) |
| priv->contexts[i].ctxid = i; |
| |
| priv->contexts[IWL_RXON_CTX_BSS].always_active = true; |
| priv->contexts[IWL_RXON_CTX_BSS].is_active = true; |
| priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON; |
| priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING; |
| priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC; |
| priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM; |
| priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID; |
| priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY; |
| priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo; |
| priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue; |
| priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes = |
| BIT(NL80211_IFTYPE_ADHOC); |
| priv->contexts[IWL_RXON_CTX_BSS].interface_modes = |
| BIT(NL80211_IFTYPE_STATION); |
| priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP; |
| priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS; |
| priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS; |
| priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS; |
| |
| priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON; |
| priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd = |
| REPLY_WIPAN_RXON_TIMING; |
| priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd = |
| REPLY_WIPAN_RXON_ASSOC; |
| priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM; |
| priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN; |
| priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY; |
| priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID; |
| priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION; |
| priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo; |
| priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue; |
| priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE; |
| priv->contexts[IWL_RXON_CTX_PAN].interface_modes = |
| BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); |
| |
| if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P) |
| priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_P2P_GO); |
| |
| priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; |
| priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; |
| priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; |
| |
| BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
| } |
| |
| |
| struct iwlagn_ucode_capabilities { |
| u32 max_probe_length; |
| u32 standard_phy_calibration_size; |
| u32 flags; |
| }; |
| |
| static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context); |
| static int iwl_mac_setup_register(struct iwl_priv *priv, |
| struct iwlagn_ucode_capabilities *capa); |
| |
| #define UCODE_EXPERIMENTAL_INDEX 100 |
| #define UCODE_EXPERIMENTAL_TAG "exp" |
| |
| static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first) |
| { |
| const char *name_pre = priv->cfg->fw_name_pre; |
| char tag[8]; |
| |
| if (first) { |
| #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE |
| priv->fw_index = UCODE_EXPERIMENTAL_INDEX; |
| strcpy(tag, UCODE_EXPERIMENTAL_TAG); |
| } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) { |
| #endif |
| priv->fw_index = priv->cfg->ucode_api_max; |
| sprintf(tag, "%d", priv->fw_index); |
| } else { |
| priv->fw_index--; |
| sprintf(tag, "%d", priv->fw_index); |
| } |
| |
| if (priv->fw_index < priv->cfg->ucode_api_min) { |
| IWL_ERR(priv, "no suitable firmware found!\n"); |
| return -ENOENT; |
| } |
| |
| sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); |
| |
| IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n", |
| (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
| ? "EXPERIMENTAL " : "", |
| priv->firmware_name); |
| |
| return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name, |
| priv->bus->dev, |
| GFP_KERNEL, priv, iwl_ucode_callback); |
| } |
| |
| struct iwlagn_firmware_pieces { |
| const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data; |
| size_t inst_size, data_size, init_size, init_data_size, |
| wowlan_inst_size, wowlan_data_size; |
| |
| u32 build; |
| |
| u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr; |
| u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr; |
| }; |
| |
| static int iwlagn_load_legacy_firmware(struct iwl_priv *priv, |
| const struct firmware *ucode_raw, |
| struct iwlagn_firmware_pieces *pieces) |
| { |
| struct iwl_ucode_header *ucode = (void *)ucode_raw->data; |
| u32 api_ver, hdr_size; |
| const u8 *src; |
| |
| priv->ucode_ver = le32_to_cpu(ucode->ver); |
| api_ver = IWL_UCODE_API(priv->ucode_ver); |
| |
| switch (api_ver) { |
| default: |
| hdr_size = 28; |
| if (ucode_raw->size < hdr_size) { |
| IWL_ERR(priv, "File size too small!\n"); |
| return -EINVAL; |
| } |
| pieces->build = le32_to_cpu(ucode->u.v2.build); |
| pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size); |
| pieces->data_size = le32_to_cpu(ucode->u.v2.data_size); |
| pieces->init_size = le32_to_cpu(ucode->u.v2.init_size); |
| pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size); |
| src = ucode->u.v2.data; |
| break; |
| case 0: |
| case 1: |
| case 2: |
| hdr_size = 24; |
| if (ucode_raw->size < hdr_size) { |
| IWL_ERR(priv, "File size too small!\n"); |
| return -EINVAL; |
| } |
| pieces->build = 0; |
| pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size); |
| pieces->data_size = le32_to_cpu(ucode->u.v1.data_size); |
| pieces->init_size = le32_to_cpu(ucode->u.v1.init_size); |
| pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size); |
| src = ucode->u.v1.data; |
| break; |
| } |
| |
| /* Verify size of file vs. image size info in file's header */ |
| if (ucode_raw->size != hdr_size + pieces->inst_size + |
| pieces->data_size + pieces->init_size + |
| pieces->init_data_size) { |
| |
| IWL_ERR(priv, |
| "uCode file size %d does not match expected size\n", |
| (int)ucode_raw->size); |
| return -EINVAL; |
| } |
| |
| pieces->inst = src; |
| src += pieces->inst_size; |
| pieces->data = src; |
| src += pieces->data_size; |
| pieces->init = src; |
| src += pieces->init_size; |
| pieces->init_data = src; |
| src += pieces->init_data_size; |
| |
| return 0; |
| } |
| |
| static int iwlagn_load_firmware(struct iwl_priv *priv, |
| const struct firmware *ucode_raw, |
| struct iwlagn_firmware_pieces *pieces, |
| struct iwlagn_ucode_capabilities *capa) |
| { |
| struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data; |
| struct iwl_ucode_tlv *tlv; |
| size_t len = ucode_raw->size; |
| const u8 *data; |
| int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative; |
| int tmp; |
| u64 alternatives; |
| u32 tlv_len; |
| enum iwl_ucode_tlv_type tlv_type; |
| const u8 *tlv_data; |
| |
| if (len < sizeof(*ucode)) { |
| IWL_ERR(priv, "uCode has invalid length: %zd\n", len); |
| return -EINVAL; |
| } |
| |
| if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) { |
| IWL_ERR(priv, "invalid uCode magic: 0X%x\n", |
| le32_to_cpu(ucode->magic)); |
| return -EINVAL; |
| } |
| |
| /* |
| * Check which alternatives are present, and "downgrade" |
| * when the chosen alternative is not present, warning |
| * the user when that happens. Some files may not have |
| * any alternatives, so don't warn in that case. |
| */ |
| alternatives = le64_to_cpu(ucode->alternatives); |
| tmp = wanted_alternative; |
| if (wanted_alternative > 63) |
| wanted_alternative = 63; |
| while (wanted_alternative && !(alternatives & BIT(wanted_alternative))) |
| wanted_alternative--; |
| if (wanted_alternative && wanted_alternative != tmp) |
| IWL_WARN(priv, |
| "uCode alternative %d not available, choosing %d\n", |
| tmp, wanted_alternative); |
| |
| priv->ucode_ver = le32_to_cpu(ucode->ver); |
| pieces->build = le32_to_cpu(ucode->build); |
| data = ucode->data; |
| |
| len -= sizeof(*ucode); |
| |
| while (len >= sizeof(*tlv)) { |
| u16 tlv_alt; |
| |
| len -= sizeof(*tlv); |
| tlv = (void *)data; |
| |
| tlv_len = le32_to_cpu(tlv->length); |
| tlv_type = le16_to_cpu(tlv->type); |
| tlv_alt = le16_to_cpu(tlv->alternative); |
| tlv_data = tlv->data; |
| |
| if (len < tlv_len) { |
| IWL_ERR(priv, "invalid TLV len: %zd/%u\n", |
| len, tlv_len); |
| return -EINVAL; |
| } |
| len -= ALIGN(tlv_len, 4); |
| data += sizeof(*tlv) + ALIGN(tlv_len, 4); |
| |
| /* |
| * Alternative 0 is always valid. |
| * |
| * Skip alternative TLVs that are not selected. |
| */ |
| if (tlv_alt != 0 && tlv_alt != wanted_alternative) |
| continue; |
| |
| switch (tlv_type) { |
| case IWL_UCODE_TLV_INST: |
| pieces->inst = tlv_data; |
| pieces->inst_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_DATA: |
| pieces->data = tlv_data; |
| pieces->data_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_INIT: |
| pieces->init = tlv_data; |
| pieces->init_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_INIT_DATA: |
| pieces->init_data = tlv_data; |
| pieces->init_data_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_BOOT: |
| IWL_ERR(priv, "Found unexpected BOOT ucode\n"); |
| break; |
| case IWL_UCODE_TLV_PROBE_MAX_LEN: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| capa->max_probe_length = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_PAN: |
| if (tlv_len) |
| goto invalid_tlv_len; |
| capa->flags |= IWL_UCODE_TLV_FLAGS_PAN; |
| break; |
| case IWL_UCODE_TLV_FLAGS: |
| /* must be at least one u32 */ |
| if (tlv_len < sizeof(u32)) |
| goto invalid_tlv_len; |
| /* and a proper number of u32s */ |
| if (tlv_len % sizeof(u32)) |
| goto invalid_tlv_len; |
| /* |
| * This driver only reads the first u32 as |
| * right now no more features are defined, |
| * if that changes then either the driver |
| * will not work with the new firmware, or |
| * it'll not take advantage of new features. |
| */ |
| capa->flags = le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_INIT_EVTLOG_PTR: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->init_evtlog_ptr = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_INIT_EVTLOG_SIZE: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->init_evtlog_size = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_INIT_ERRLOG_PTR: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->init_errlog_ptr = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_RUNT_EVTLOG_PTR: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->inst_evtlog_ptr = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->inst_evtlog_size = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_RUNT_ERRLOG_PTR: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| pieces->inst_errlog_ptr = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| case IWL_UCODE_TLV_ENHANCE_SENS_TBL: |
| if (tlv_len) |
| goto invalid_tlv_len; |
| priv->enhance_sensitivity_table = true; |
| break; |
| case IWL_UCODE_TLV_WOWLAN_INST: |
| pieces->wowlan_inst = tlv_data; |
| pieces->wowlan_inst_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_WOWLAN_DATA: |
| pieces->wowlan_data = tlv_data; |
| pieces->wowlan_data_size = tlv_len; |
| break; |
| case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE: |
| if (tlv_len != sizeof(u32)) |
| goto invalid_tlv_len; |
| capa->standard_phy_calibration_size = |
| le32_to_cpup((__le32 *)tlv_data); |
| break; |
| default: |
| IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type); |
| break; |
| } |
| } |
| |
| if (len) { |
| IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len); |
| iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len); |
| return -EINVAL; |
| } |
| |
| return 0; |
| |
| invalid_tlv_len: |
| IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len); |
| iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len); |
| |
| return -EINVAL; |
| } |
| |
| /** |
| * iwl_ucode_callback - callback when firmware was loaded |
| * |
| * If loaded successfully, copies the firmware into buffers |
| * for the card to fetch (via DMA). |
| */ |
| static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context) |
| { |
| struct iwl_priv *priv = context; |
| struct iwl_ucode_header *ucode; |
| int err; |
| struct iwlagn_firmware_pieces pieces; |
| const unsigned int api_max = priv->cfg->ucode_api_max; |
| unsigned int api_ok = priv->cfg->ucode_api_ok; |
| const unsigned int api_min = priv->cfg->ucode_api_min; |
| u32 api_ver; |
| char buildstr[25]; |
| u32 build; |
| struct iwlagn_ucode_capabilities ucode_capa = { |
| .max_probe_length = 200, |
| .standard_phy_calibration_size = |
| IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE, |
| }; |
| |
| if (!api_ok) |
| api_ok = api_max; |
| |
| memset(&pieces, 0, sizeof(pieces)); |
| |
| if (!ucode_raw) { |
| if (priv->fw_index <= api_ok) |
| IWL_ERR(priv, |
| "request for firmware file '%s' failed.\n", |
| priv->firmware_name); |
| goto try_again; |
| } |
| |
| IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n", |
| priv->firmware_name, ucode_raw->size); |
| |
| /* Make sure that we got at least the API version number */ |
| if (ucode_raw->size < 4) { |
| IWL_ERR(priv, "File size way too small!\n"); |
| goto try_again; |
| } |
| |
| /* Data from ucode file: header followed by uCode images */ |
| ucode = (struct iwl_ucode_header *)ucode_raw->data; |
| |
| if (ucode->ver) |
| err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces); |
| else |
| err = iwlagn_load_firmware(priv, ucode_raw, &pieces, |
| &ucode_capa); |
| |
| if (err) |
| goto try_again; |
| |
| api_ver = IWL_UCODE_API(priv->ucode_ver); |
| build = pieces.build; |
| |
| /* |
| * api_ver should match the api version forming part of the |
| * firmware filename ... but we don't check for that and only rely |
| * on the API version read from firmware header from here on forward |
| */ |
| /* no api version check required for experimental uCode */ |
| if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) { |
| if (api_ver < api_min || api_ver > api_max) { |
| IWL_ERR(priv, |
| "Driver unable to support your firmware API. " |
| "Driver supports v%u, firmware is v%u.\n", |
| api_max, api_ver); |
| goto try_again; |
| } |
| |
| if (api_ver < api_ok) { |
| if (api_ok != api_max) |
| IWL_ERR(priv, "Firmware has old API version, " |
| "expected v%u through v%u, got v%u.\n", |
| api_ok, api_max, api_ver); |
| else |
| IWL_ERR(priv, "Firmware has old API version, " |
| "expected v%u, got v%u.\n", |
| api_max, api_ver); |
| IWL_ERR(priv, "New firmware can be obtained from " |
| "http://www.intellinuxwireless.org/.\n"); |
| } |
| } |
| |
| if (build) |
| sprintf(buildstr, " build %u%s", build, |
| (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) |
| ? " (EXP)" : ""); |
| else |
| buildstr[0] = '\0'; |
| |
| IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n", |
| IWL_UCODE_MAJOR(priv->ucode_ver), |
| IWL_UCODE_MINOR(priv->ucode_ver), |
| IWL_UCODE_API(priv->ucode_ver), |
| IWL_UCODE_SERIAL(priv->ucode_ver), |
| buildstr); |
| |
| snprintf(priv->hw->wiphy->fw_version, |
| sizeof(priv->hw->wiphy->fw_version), |
| "%u.%u.%u.%u%s", |
| IWL_UCODE_MAJOR(priv->ucode_ver), |
| IWL_UCODE_MINOR(priv->ucode_ver), |
| IWL_UCODE_API(priv->ucode_ver), |
| IWL_UCODE_SERIAL(priv->ucode_ver), |
| buildstr); |
| |
| /* |
| * For any of the failures below (before allocating pci memory) |
| * we will try to load a version with a smaller API -- maybe the |
| * user just got a corrupted version of the latest API. |
| */ |
| |
| IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n", |
| priv->ucode_ver); |
| IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n", |
| pieces.inst_size); |
| IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n", |
| pieces.data_size); |
| IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n", |
| pieces.init_size); |
| IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n", |
| pieces.init_data_size); |
| |
| /* Verify that uCode images will fit in card's SRAM */ |
| if (pieces.inst_size > hw_params(priv).max_inst_size) { |
| IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n", |
| pieces.inst_size); |
| goto try_again; |
| } |
| |
| if (pieces.data_size > hw_params(priv).max_data_size) { |
| IWL_ERR(priv, "uCode data len %Zd too large to fit in\n", |
| pieces.data_size); |
| goto try_again; |
| } |
| |
| if (pieces.init_size > hw_params(priv).max_inst_size) { |
| IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n", |
| pieces.init_size); |
| goto try_again; |
| } |
| |
| if (pieces.init_data_size > hw_params(priv).max_data_size) { |
| IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n", |
| pieces.init_data_size); |
| goto try_again; |
| } |
| |
| /* Allocate ucode buffers for card's bus-master loading ... */ |
| |
| /* Runtime instructions and 2 copies of data: |
| * 1) unmodified from disk |
| * 2) backup cache for save/restore during power-downs */ |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code, |
| pieces.inst, pieces.inst_size)) |
| goto err_pci_alloc; |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data, |
| pieces.data, pieces.data_size)) |
| goto err_pci_alloc; |
| |
| /* Initialization instructions and data */ |
| if (pieces.init_size && pieces.init_data_size) { |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code, |
| pieces.init, pieces.init_size)) |
| goto err_pci_alloc; |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data, |
| pieces.init_data, pieces.init_data_size)) |
| goto err_pci_alloc; |
| } |
| |
| /* WoWLAN instructions and data */ |
| if (pieces.wowlan_inst_size && pieces.wowlan_data_size) { |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code, |
| pieces.wowlan_inst, |
| pieces.wowlan_inst_size)) |
| goto err_pci_alloc; |
| if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data, |
| pieces.wowlan_data, |
| pieces.wowlan_data_size)) |
| goto err_pci_alloc; |
| } |
| |
| /* Now that we can no longer fail, copy information */ |
| |
| /* |
| * The (size - 16) / 12 formula is based on the information recorded |
| * for each event, which is of mode 1 (including timestamp) for all |
| * new microcodes that include this information. |
| */ |
| priv->init_evtlog_ptr = pieces.init_evtlog_ptr; |
| if (pieces.init_evtlog_size) |
| priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12; |
| else |
| priv->init_evtlog_size = |
| priv->cfg->base_params->max_event_log_size; |
| priv->init_errlog_ptr = pieces.init_errlog_ptr; |
| priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr; |
| if (pieces.inst_evtlog_size) |
| priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12; |
| else |
| priv->inst_evtlog_size = |
| priv->cfg->base_params->max_event_log_size; |
| priv->inst_errlog_ptr = pieces.inst_errlog_ptr; |
| |
| priv->new_scan_threshold_behaviour = |
| !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); |
| |
| if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE)) |
| ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN; |
| |
| /* |
| * if not PAN, then don't support P2P -- might be a uCode |
| * packaging bug or due to the eeprom check above |
| */ |
| if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN)) |
| ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P; |
| |
| if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) { |
| priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; |
| priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; |
| } else { |
| priv->sta_key_max_num = STA_KEY_MAX_NUM; |
| priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; |
| } |
| |
| /* |
| * figure out the offset of chain noise reset and gain commands |
| * base on the size of standard phy calibration commands table size |
| */ |
| if (ucode_capa.standard_phy_calibration_size > |
| IWL_MAX_PHY_CALIBRATE_TBL_SIZE) |
| ucode_capa.standard_phy_calibration_size = |
| IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE; |
| |
| priv->phy_calib_chain_noise_reset_cmd = |
| ucode_capa.standard_phy_calibration_size; |
| priv->phy_calib_chain_noise_gain_cmd = |
| ucode_capa.standard_phy_calibration_size + 1; |
| |
| /* initialize all valid contexts */ |
| iwl_init_context(priv, ucode_capa.flags); |
| |
| /************************************************** |
| * This is still part of probe() in a sense... |
| * |
| * 9. Setup and register with mac80211 and debugfs |
| **************************************************/ |
| err = iwl_mac_setup_register(priv, &ucode_capa); |
| if (err) |
| goto out_unbind; |
| |
| err = iwl_dbgfs_register(priv, DRV_NAME); |
| if (err) |
| IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); |
| |
| err = sysfs_create_group(&(priv->bus->dev->kobj), |
| &iwl_attribute_group); |
| if (err) { |
| IWL_ERR(priv, "failed to create sysfs device attributes\n"); |
| goto out_unbind; |
| } |
| |
| /* We have our copies now, allow OS release its copies */ |
| release_firmware(ucode_raw); |
| complete(&priv->firmware_loading_complete); |
| return; |
| |
| try_again: |
| /* try next, if any */ |
| if (iwl_request_firmware(priv, false)) |
| goto out_unbind; |
| release_firmware(ucode_raw); |
| return; |
| |
| err_pci_alloc: |
| IWL_ERR(priv, "failed to allocate pci memory\n"); |
| iwl_dealloc_ucode(priv); |
| out_unbind: |
| complete(&priv->firmware_loading_complete); |
| device_release_driver(priv->bus->dev); |
| release_firmware(ucode_raw); |
| } |
| |
| static void iwl_rf_kill_ct_config(struct iwl_priv *priv) |
| { |
| struct iwl_ct_kill_config cmd; |
| struct iwl_ct_kill_throttling_config adv_cmd; |
| unsigned long flags; |
| int ret = 0; |
| |
| spin_lock_irqsave(&priv->shrd->lock, flags); |
| iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
| CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT); |
| spin_unlock_irqrestore(&priv->shrd->lock, flags); |
| priv->thermal_throttle.ct_kill_toggle = false; |
| |
| if (priv->cfg->base_params->support_ct_kill_exit) { |
| adv_cmd.critical_temperature_enter = |
| cpu_to_le32(hw_params(priv).ct_kill_threshold); |
| adv_cmd.critical_temperature_exit = |
| cpu_to_le32(hw_params(priv).ct_kill_exit_threshold); |
| |
| ret = iwl_trans_send_cmd_pdu(trans(priv), |
| REPLY_CT_KILL_CONFIG_CMD, |
| CMD_SYNC, sizeof(adv_cmd), &adv_cmd); |
| if (ret) |
| IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| else |
| IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| "succeeded, critical temperature enter is %d," |
| "exit is %d\n", |
| hw_params(priv).ct_kill_threshold, |
| hw_params(priv).ct_kill_exit_threshold); |
| } else { |
| cmd.critical_temperature_R = |
| cpu_to_le32(hw_params(priv).ct_kill_threshold); |
| |
| ret = iwl_trans_send_cmd_pdu(trans(priv), |
| REPLY_CT_KILL_CONFIG_CMD, |
| CMD_SYNC, sizeof(cmd), &cmd); |
| if (ret) |
| IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); |
| else |
| IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD " |
| "succeeded, " |
| "critical temperature is %d\n", |
| hw_params(priv).ct_kill_threshold); |
| } |
| } |
| |
| static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg) |
| { |
| struct iwl_calib_cfg_cmd calib_cfg_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = CALIBRATION_CFG_CMD, |
| .len = { sizeof(struct iwl_calib_cfg_cmd), }, |
| .data = { &calib_cfg_cmd, }, |
| }; |
| |
| memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd)); |
| calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL; |
| calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg); |
| |
| return iwl_trans_send_cmd(trans(priv), &cmd); |
| } |
| |
| |
| static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) |
| { |
| struct iwl_tx_ant_config_cmd tx_ant_cmd = { |
| .valid = cpu_to_le32(valid_tx_ant), |
| }; |
| |
| if (IWL_UCODE_API(priv->ucode_ver) > 1) { |
| IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); |
| return iwl_trans_send_cmd_pdu(trans(priv), |
| TX_ANT_CONFIGURATION_CMD, |
| CMD_SYNC, |
| sizeof(struct iwl_tx_ant_config_cmd), |
| &tx_ant_cmd); |
| } else { |
| IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n"); |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| /** |
| * iwl_alive_start - called after REPLY_ALIVE notification received |
| * from protocol/runtime uCode (initialization uCode's |
| * Alive gets handled by iwl_init_alive_start()). |
| */ |
| int iwl_alive_start(struct iwl_priv *priv) |
| { |
| int ret = 0; |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| |
| /*TODO: this should go to the transport layer */ |
| iwl_reset_ict(priv); |
| |
| IWL_DEBUG_INFO(priv, "Runtime Alive received.\n"); |
| |
| /* After the ALIVE response, we can send host commands to the uCode */ |
| set_bit(STATUS_ALIVE, &priv->shrd->status); |
| |
| /* Enable watchdog to monitor the driver tx queues */ |
| iwl_setup_watchdog(priv); |
| |
| if (iwl_is_rfkill(priv)) |
| return -ERFKILL; |
| |
| /* download priority table before any calibration request */ |
| if (priv->cfg->bt_params && |
| priv->cfg->bt_params->advanced_bt_coexist) { |
| /* Configure Bluetooth device coexistence support */ |
| if (priv->cfg->bt_params->bt_sco_disable) |
| priv->bt_enable_pspoll = false; |
| else |
| priv->bt_enable_pspoll = true; |
| |
| priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
| priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
| priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; |
| iwlagn_send_advance_bt_config(priv); |
| priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS; |
| priv->cur_rssi_ctx = NULL; |
| |
| iwlagn_send_prio_tbl(priv); |
| |
| /* FIXME: w/a to force change uCode BT state machine */ |
| ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN, |
| BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| if (ret) |
| return ret; |
| ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE, |
| BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); |
| if (ret) |
| return ret; |
| } else { |
| /* |
| * default is 2-wire BT coexexistence support |
| */ |
| iwl_send_bt_config(priv); |
| } |
| |
| if (hw_params(priv).calib_rt_cfg) |
| iwlagn_send_calib_cfg_rt(priv, |
| hw_params(priv).calib_rt_cfg); |
| |
| ieee80211_wake_queues(priv->hw); |
| |
| priv->active_rate = IWL_RATES_MASK; |
| |
| /* Configure Tx antenna selection based on H/W config */ |
| iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant); |
| |
| if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) { |
| struct iwl_rxon_cmd *active_rxon = |
| (struct iwl_rxon_cmd *)&ctx->active; |
| /* apply any changes in staging */ |
| ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK; |
| active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| } else { |
| struct iwl_rxon_context *tmp; |
| /* Initialize our rx_config data */ |
| for_each_context(priv, tmp) |
| iwl_connection_init_rx_config(priv, tmp); |
| |
| iwlagn_set_rxon_chain(priv, ctx); |
| } |
| |
| if (!priv->shrd->wowlan) { |
| /* WoWLAN ucode will not reply in the same way, skip it */ |
| iwl_reset_run_time_calib(priv); |
| } |
| |
| set_bit(STATUS_READY, &priv->shrd->status); |
| |
| /* Configure the adapter for unassociated operation */ |
| ret = iwlagn_commit_rxon(priv, ctx); |
| if (ret) |
| return ret; |
| |
| /* At this point, the NIC is initialized and operational */ |
| iwl_rf_kill_ct_config(priv); |
| |
| IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n"); |
| |
| return iwl_power_update_mode(priv, true); |
| } |
| |
| static void iwl_cancel_deferred_work(struct iwl_priv *priv); |
| |
| static void __iwl_down(struct iwl_priv *priv) |
| { |
| int exit_pending; |
| |
| IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); |
| |
| iwl_scan_cancel_timeout(priv, 200); |
| |
| /* |
| * If active, scanning won't cancel it, so say it expired. |
| * No race since we hold the mutex here and a new one |
| * can't come in at this time. |
| */ |
| ieee80211_remain_on_channel_expired(priv->hw); |
| |
| exit_pending = |
| test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| |
| /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set |
| * to prevent rearm timer */ |
| del_timer_sync(&priv->watchdog); |
| |
| iwl_clear_ucode_stations(priv, NULL); |
| iwl_dealloc_bcast_stations(priv); |
| iwl_clear_driver_stations(priv); |
| |
| /* reset BT coex data */ |
| priv->bt_status = 0; |
| priv->cur_rssi_ctx = NULL; |
| priv->bt_is_sco = 0; |
| if (priv->cfg->bt_params) |
| priv->bt_traffic_load = |
| priv->cfg->bt_params->bt_init_traffic_load; |
| else |
| priv->bt_traffic_load = 0; |
| priv->bt_full_concurrent = false; |
| priv->bt_ci_compliance = 0; |
| |
| /* Wipe out the EXIT_PENDING status bit if we are not actually |
| * exiting the module */ |
| if (!exit_pending) |
| clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| |
| if (priv->mac80211_registered) |
| ieee80211_stop_queues(priv->hw); |
| |
| /* Clear out all status bits but a few that are stable across reset */ |
| priv->shrd->status &= |
| test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) << |
| STATUS_RF_KILL_HW | |
| test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) << |
| STATUS_GEO_CONFIGURED | |
| test_bit(STATUS_FW_ERROR, &priv->shrd->status) << |
| STATUS_FW_ERROR | |
| test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) << |
| STATUS_EXIT_PENDING; |
| |
| iwl_trans_stop_device(trans(priv)); |
| |
| dev_kfree_skb(priv->beacon_skb); |
| priv->beacon_skb = NULL; |
| } |
| |
| static void iwl_down(struct iwl_priv *priv) |
| { |
| mutex_lock(&priv->shrd->mutex); |
| __iwl_down(priv); |
| mutex_unlock(&priv->shrd->mutex); |
| |
| iwl_cancel_deferred_work(priv); |
| } |
| |
| #define MAX_HW_RESTARTS 5 |
| |
| static int __iwl_up(struct iwl_priv *priv) |
| { |
| struct iwl_rxon_context *ctx; |
| int ret; |
| |
| lockdep_assert_held(&priv->shrd->mutex); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { |
| IWL_WARN(priv, "Exit pending; will not bring the NIC up\n"); |
| return -EIO; |
| } |
| |
| for_each_context(priv, ctx) { |
| ret = iwlagn_alloc_bcast_station(priv, ctx); |
| if (ret) { |
| iwl_dealloc_bcast_stations(priv); |
| return ret; |
| } |
| } |
| |
| ret = iwlagn_run_init_ucode(priv); |
| if (ret) { |
| IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret); |
| goto error; |
| } |
| |
| ret = iwlagn_load_ucode_wait_alive(priv, |
| &priv->ucode_rt, |
| IWL_UCODE_REGULAR); |
| if (ret) { |
| IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret); |
| goto error; |
| } |
| |
| ret = iwl_alive_start(priv); |
| if (ret) |
| goto error; |
| return 0; |
| |
| error: |
| set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| __iwl_down(priv); |
| clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| |
| IWL_ERR(priv, "Unable to initialize device.\n"); |
| return ret; |
| } |
| |
| |
| /***************************************************************************** |
| * |
| * Workqueue callbacks |
| * |
| *****************************************************************************/ |
| |
| static void iwl_bg_run_time_calib_work(struct work_struct *work) |
| { |
| struct iwl_priv *priv = container_of(work, struct iwl_priv, |
| run_time_calib_work); |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) || |
| test_bit(STATUS_SCANNING, &priv->shrd->status)) { |
| mutex_unlock(&priv->shrd->mutex); |
| return; |
| } |
| |
| if (priv->start_calib) { |
| iwl_chain_noise_calibration(priv); |
| iwl_sensitivity_calibration(priv); |
| } |
| |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| static void iwlagn_prepare_restart(struct iwl_priv *priv) |
| { |
| struct iwl_rxon_context *ctx; |
| bool bt_full_concurrent; |
| u8 bt_ci_compliance; |
| u8 bt_load; |
| u8 bt_status; |
| bool bt_is_sco; |
| |
| lockdep_assert_held(&priv->shrd->mutex); |
| |
| for_each_context(priv, ctx) |
| ctx->vif = NULL; |
| priv->is_open = 0; |
| |
| /* |
| * __iwl_down() will clear the BT status variables, |
| * which is correct, but when we restart we really |
| * want to keep them so restore them afterwards. |
| * |
| * The restart process will later pick them up and |
| * re-configure the hw when we reconfigure the BT |
| * command. |
| */ |
| bt_full_concurrent = priv->bt_full_concurrent; |
| bt_ci_compliance = priv->bt_ci_compliance; |
| bt_load = priv->bt_traffic_load; |
| bt_status = priv->bt_status; |
| bt_is_sco = priv->bt_is_sco; |
| |
| __iwl_down(priv); |
| |
| priv->bt_full_concurrent = bt_full_concurrent; |
| priv->bt_ci_compliance = bt_ci_compliance; |
| priv->bt_traffic_load = bt_load; |
| priv->bt_status = bt_status; |
| priv->bt_is_sco = bt_is_sco; |
| } |
| |
| static void iwl_bg_restart(struct work_struct *data) |
| { |
| struct iwl_priv *priv = container_of(data, struct iwl_priv, restart); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| return; |
| |
| if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) { |
| mutex_lock(&priv->shrd->mutex); |
| iwlagn_prepare_restart(priv); |
| mutex_unlock(&priv->shrd->mutex); |
| iwl_cancel_deferred_work(priv); |
| ieee80211_restart_hw(priv->hw); |
| } else { |
| WARN_ON(1); |
| } |
| } |
| |
| /***************************************************************************** |
| * |
| * mac80211 entry point functions |
| * |
| *****************************************************************************/ |
| |
| static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = { |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_AP), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { |
| { |
| .max = 2, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_P2P_GO) | |
| BIT(NL80211_IFTYPE_AP), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { |
| { |
| .max = 2, |
| .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, |
| .types = BIT(NL80211_IFTYPE_P2P_CLIENT), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_combination |
| iwlagn_iface_combinations_dualmode[] = { |
| { .num_different_channels = 1, |
| .max_interfaces = 2, |
| .beacon_int_infra_match = true, |
| .limits = iwlagn_sta_ap_limits, |
| .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits), |
| }, |
| { .num_different_channels = 1, |
| .max_interfaces = 2, |
| .limits = iwlagn_2sta_limits, |
| .n_limits = ARRAY_SIZE(iwlagn_2sta_limits), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_combination |
| iwlagn_iface_combinations_p2p[] = { |
| { .num_different_channels = 1, |
| .max_interfaces = 2, |
| .beacon_int_infra_match = true, |
| .limits = iwlagn_p2p_sta_go_limits, |
| .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), |
| }, |
| { .num_different_channels = 1, |
| .max_interfaces = 2, |
| .limits = iwlagn_p2p_2sta_limits, |
| .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), |
| }, |
| }; |
| |
| /* |
| * Not a mac80211 entry point function, but it fits in with all the |
| * other mac80211 functions grouped here. |
| */ |
| static int iwl_mac_setup_register(struct iwl_priv *priv, |
| struct iwlagn_ucode_capabilities *capa) |
| { |
| int ret; |
| struct ieee80211_hw *hw = priv->hw; |
| struct iwl_rxon_context *ctx; |
| |
| hw->rate_control_algorithm = "iwl-agn-rs"; |
| |
| /* Tell mac80211 our characteristics */ |
| hw->flags = IEEE80211_HW_SIGNAL_DBM | |
| IEEE80211_HW_AMPDU_AGGREGATION | |
| IEEE80211_HW_NEED_DTIM_PERIOD | |
| IEEE80211_HW_SPECTRUM_MGMT | |
| IEEE80211_HW_REPORTS_TX_ACK_STATUS; |
| |
| hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF; |
| |
| hw->flags |= IEEE80211_HW_SUPPORTS_PS | |
| IEEE80211_HW_SUPPORTS_DYNAMIC_PS; |
| |
| if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE) |
| hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | |
| IEEE80211_HW_SUPPORTS_STATIC_SMPS; |
| |
| if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP) |
| hw->flags |= IEEE80211_HW_MFP_CAPABLE; |
| |
| hw->sta_data_size = sizeof(struct iwl_station_priv); |
| hw->vif_data_size = sizeof(struct iwl_vif_priv); |
| |
| for_each_context(priv, ctx) { |
| hw->wiphy->interface_modes |= ctx->interface_modes; |
| hw->wiphy->interface_modes |= ctx->exclusive_interface_modes; |
| } |
| |
| BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); |
| |
| if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { |
| hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; |
| hw->wiphy->n_iface_combinations = |
| ARRAY_SIZE(iwlagn_iface_combinations_p2p); |
| } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { |
| hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode; |
| hw->wiphy->n_iface_combinations = |
| ARRAY_SIZE(iwlagn_iface_combinations_dualmode); |
| } |
| |
| hw->wiphy->max_remain_on_channel_duration = 1000; |
| |
| hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | |
| WIPHY_FLAG_DISABLE_BEACON_HINTS | |
| WIPHY_FLAG_IBSS_RSN; |
| |
| if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) { |
| hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | |
| WIPHY_WOWLAN_DISCONNECT | |
| WIPHY_WOWLAN_EAP_IDENTITY_REQ | |
| WIPHY_WOWLAN_RFKILL_RELEASE; |
| if (!iwlagn_mod_params.sw_crypto) |
| hw->wiphy->wowlan.flags |= |
| WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | |
| WIPHY_WOWLAN_GTK_REKEY_FAILURE; |
| |
| hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; |
| hw->wiphy->wowlan.pattern_min_len = |
| IWLAGN_WOWLAN_MIN_PATTERN_LEN; |
| hw->wiphy->wowlan.pattern_max_len = |
| IWLAGN_WOWLAN_MAX_PATTERN_LEN; |
| } |
| |
| if (iwlagn_mod_params.power_save) |
| hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| else |
| hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; |
| |
| hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; |
| /* we create the 802.11 header and a zero-length SSID element */ |
| hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2; |
| |
| /* Default value; 4 EDCA QOS priorities */ |
| hw->queues = 4; |
| |
| hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL; |
| |
| if (priv->bands[IEEE80211_BAND_2GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = |
| &priv->bands[IEEE80211_BAND_2GHZ]; |
| if (priv->bands[IEEE80211_BAND_5GHZ].n_channels) |
| priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = |
| &priv->bands[IEEE80211_BAND_5GHZ]; |
| |
| iwl_leds_init(priv); |
| |
| ret = ieee80211_register_hw(priv->hw); |
| if (ret) { |
| IWL_ERR(priv, "Failed to register hw (error %d)\n", ret); |
| return ret; |
| } |
| priv->mac80211_registered = 1; |
| |
| return 0; |
| } |
| |
| |
| static int iwlagn_mac_start(struct ieee80211_hw *hw) |
| { |
| struct iwl_priv *priv = hw->priv; |
| int ret; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| /* we should be verifying the device is ready to be opened */ |
| mutex_lock(&priv->shrd->mutex); |
| ret = __iwl_up(priv); |
| mutex_unlock(&priv->shrd->mutex); |
| if (ret) |
| return ret; |
| |
| IWL_DEBUG_INFO(priv, "Start UP work done.\n"); |
| |
| /* Now we should be done, and the READY bit should be set. */ |
| if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status))) |
| ret = -EIO; |
| |
| iwlagn_led_enable(priv); |
| |
| priv->is_open = 1; |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| return 0; |
| } |
| |
| static void iwlagn_mac_stop(struct ieee80211_hw *hw) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (!priv->is_open) |
| return; |
| |
| priv->is_open = 0; |
| |
| iwl_down(priv); |
| |
| flush_workqueue(priv->shrd->workqueue); |
| |
| /* User space software may expect getting rfkill changes |
| * even if interface is down */ |
| iwl_write32(priv, CSR_INT, 0xFFFFFFFF); |
| iwl_enable_rfkill_int(priv); |
| |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| |
| #ifdef CONFIG_PM |
| static int iwlagn_send_patterns(struct iwl_priv *priv, |
| struct cfg80211_wowlan *wowlan) |
| { |
| struct iwlagn_wowlan_patterns_cmd *pattern_cmd; |
| struct iwl_host_cmd cmd = { |
| .id = REPLY_WOWLAN_PATTERNS, |
| .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| .flags = CMD_SYNC, |
| }; |
| int i, err; |
| |
| if (!wowlan->n_patterns) |
| return 0; |
| |
| cmd.len[0] = sizeof(*pattern_cmd) + |
| wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern); |
| |
| pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); |
| if (!pattern_cmd) |
| return -ENOMEM; |
| |
| pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); |
| |
| for (i = 0; i < wowlan->n_patterns; i++) { |
| int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); |
| |
| memcpy(&pattern_cmd->patterns[i].mask, |
| wowlan->patterns[i].mask, mask_len); |
| memcpy(&pattern_cmd->patterns[i].pattern, |
| wowlan->patterns[i].pattern, |
| wowlan->patterns[i].pattern_len); |
| pattern_cmd->patterns[i].mask_size = mask_len; |
| pattern_cmd->patterns[i].pattern_size = |
| wowlan->patterns[i].pattern_len; |
| } |
| |
| cmd.data[0] = pattern_cmd; |
| err = iwl_trans_send_cmd(trans(priv), &cmd); |
| kfree(pattern_cmd); |
| return err; |
| } |
| #endif |
| |
| static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct cfg80211_gtk_rekey_data *data) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| if (iwlagn_mod_params.sw_crypto) |
| return; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif) |
| goto out; |
| |
| memcpy(priv->kek, data->kek, NL80211_KEK_LEN); |
| memcpy(priv->kck, data->kck, NL80211_KCK_LEN); |
| priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); |
| priv->have_rekey_data = true; |
| |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| struct wowlan_key_data { |
| struct iwl_rxon_context *ctx; |
| struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc; |
| struct iwlagn_wowlan_tkip_params_cmd *tkip; |
| const u8 *bssid; |
| bool error, use_rsc_tsc, use_tkip; |
| }; |
| |
| #ifdef CONFIG_PM |
| static void iwlagn_convert_p1k(u16 *p1k, __le16 *out) |
| { |
| int i; |
| |
| for (i = 0; i < IWLAGN_P1K_SIZE; i++) |
| out[i] = cpu_to_le16(p1k[i]); |
| } |
| |
| static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key, |
| void *_data) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct wowlan_key_data *data = _data; |
| struct iwl_rxon_context *ctx = data->ctx; |
| struct aes_sc *aes_sc, *aes_tx_sc = NULL; |
| struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; |
| struct iwlagn_p1k_cache *rx_p1ks; |
| u8 *rx_mic_key; |
| struct ieee80211_key_seq seq; |
| u32 cur_rx_iv32 = 0; |
| u16 p1k[IWLAGN_P1K_SIZE]; |
| int ret, i; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| key->cipher == WLAN_CIPHER_SUITE_WEP104) && |
| !sta && !ctx->key_mapping_keys) |
| ret = iwl_set_default_wep_key(priv, ctx, key); |
| else |
| ret = iwl_set_dynamic_key(priv, ctx, key, sta); |
| |
| if (ret) { |
| IWL_ERR(priv, "Error setting key during suspend!\n"); |
| data->error = true; |
| } |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_TKIP: |
| if (sta) { |
| tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; |
| tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; |
| |
| rx_p1ks = data->tkip->rx_uni; |
| |
| ieee80211_get_key_tx_seq(key, &seq); |
| tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); |
| tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); |
| |
| ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); |
| iwlagn_convert_p1k(p1k, data->tkip->tx.p1k); |
| |
| memcpy(data->tkip->mic_keys.tx, |
| &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], |
| IWLAGN_MIC_KEY_SIZE); |
| |
| rx_mic_key = data->tkip->mic_keys.rx_unicast; |
| } else { |
| tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; |
| rx_p1ks = data->tkip->rx_multi; |
| rx_mic_key = data->tkip->mic_keys.rx_mcast; |
| } |
| |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211 use TID 0 (as they need to to avoid replay attacks) |
| * for checking the IV in the frames. |
| */ |
| for (i = 0; i < IWLAGN_NUM_RSC; i++) { |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); |
| tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); |
| /* wrapping isn't allowed, AP must rekey */ |
| if (seq.tkip.iv32 > cur_rx_iv32) |
| cur_rx_iv32 = seq.tkip.iv32; |
| } |
| |
| ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k); |
| iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k); |
| ieee80211_get_tkip_rx_p1k(key, data->bssid, |
| cur_rx_iv32 + 1, p1k); |
| iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k); |
| |
| memcpy(rx_mic_key, |
| &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], |
| IWLAGN_MIC_KEY_SIZE); |
| |
| data->use_tkip = true; |
| data->use_rsc_tsc = true; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| if (sta) { |
| u8 *pn = seq.ccmp.pn; |
| |
| aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; |
| aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; |
| |
| ieee80211_get_key_tx_seq(key, &seq); |
| aes_tx_sc->pn = cpu_to_le64( |
| (u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } else |
| aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; |
| |
| /* |
| * For non-QoS this relies on the fact that both the uCode and |
| * mac80211 use TID 0 for checking the IV in the frames. |
| */ |
| for (i = 0; i < IWLAGN_NUM_RSC; i++) { |
| u8 *pn = seq.ccmp.pn; |
| |
| ieee80211_get_key_rx_seq(key, i, &seq); |
| aes_sc->pn = cpu_to_le64( |
| (u64)pn[5] | |
| ((u64)pn[4] << 8) | |
| ((u64)pn[3] << 16) | |
| ((u64)pn[2] << 24) | |
| ((u64)pn[1] << 32) | |
| ((u64)pn[0] << 40)); |
| } |
| data->use_rsc_tsc = true; |
| break; |
| } |
| |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| static int iwlagn_mac_suspend(struct ieee80211_hw *hw, |
| struct cfg80211_wowlan *wowlan) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd; |
| struct iwl_rxon_cmd rxon; |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd; |
| struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {}; |
| struct wowlan_key_data key_data = { |
| .ctx = ctx, |
| .bssid = ctx->active.bssid_addr, |
| .use_rsc_tsc = false, |
| .tkip = &tkip_cmd, |
| .use_tkip = false, |
| }; |
| int ret, i; |
| u16 seq; |
| |
| if (WARN_ON(!wowlan)) |
| return -EINVAL; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| /* Don't attempt WoWLAN when not associated, tear down instead. */ |
| if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION || |
| !iwl_is_associated_ctx(ctx)) { |
| ret = 1; |
| goto out; |
| } |
| |
| key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); |
| if (!key_data.rsc_tsc) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd)); |
| |
| /* |
| * We know the last used seqno, and the uCode expects to know that |
| * one, it will increment before TX. |
| */ |
| seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ; |
| wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq); |
| |
| /* |
| * For QoS counters, we store the one to use next, so subtract 0x10 |
| * since the uCode will add 0x10 before using the value. |
| */ |
| for (i = 0; i < 8; i++) { |
| seq = priv->stations[IWL_AP_ID].tid[i].seq_number; |
| seq -= 0x10; |
| wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq); |
| } |
| |
| if (wowlan->disconnect) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS | |
| IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE); |
| if (wowlan->magic_pkt) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET); |
| if (wowlan->gtk_rekey_failure) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
| if (wowlan->eap_identity_req) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
| if (wowlan->four_way_handshake) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
| if (wowlan->rfkill_release) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL); |
| if (wowlan->n_patterns) |
| wakeup_filter_cmd.enabled |= |
| cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH); |
| |
| iwl_scan_cancel_timeout(priv, 200); |
| |
| memcpy(&rxon, &ctx->active, sizeof(rxon)); |
| |
| iwl_trans_stop_device(trans(priv)); |
| |
| priv->shrd->wowlan = true; |
| |
| ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan, |
| IWL_UCODE_WOWLAN); |
| if (ret) |
| goto error; |
| |
| /* now configure WoWLAN ucode */ |
| ret = iwl_alive_start(priv); |
| if (ret) |
| goto error; |
| |
| memcpy(&ctx->staging, &rxon, sizeof(rxon)); |
| ret = iwlagn_commit_rxon(priv, ctx); |
| if (ret) |
| goto error; |
| |
| ret = iwl_power_update_mode(priv, true); |
| if (ret) |
| goto error; |
| |
| if (!iwlagn_mod_params.sw_crypto) { |
| /* mark all keys clear */ |
| priv->ucode_key_table = 0; |
| ctx->key_mapping_keys = 0; |
| |
| /* |
| * This needs to be unlocked due to lock ordering |
| * constraints. Since we're in the suspend path |
| * that isn't really a problem though. |
| */ |
| mutex_unlock(&priv->shrd->mutex); |
| ieee80211_iter_keys(priv->hw, ctx->vif, |
| iwlagn_wowlan_program_keys, |
| &key_data); |
| mutex_lock(&priv->shrd->mutex); |
| if (key_data.error) { |
| ret = -EIO; |
| goto error; |
| } |
| |
| if (key_data.use_rsc_tsc) { |
| struct iwl_host_cmd rsc_tsc_cmd = { |
| .id = REPLY_WOWLAN_TSC_RSC_PARAMS, |
| .flags = CMD_SYNC, |
| .data[0] = key_data.rsc_tsc, |
| .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| .len[0] = sizeof(*key_data.rsc_tsc), |
| }; |
| |
| ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd); |
| if (ret) |
| goto error; |
| } |
| |
| if (key_data.use_tkip) { |
| ret = iwl_trans_send_cmd_pdu(trans(priv), |
| REPLY_WOWLAN_TKIP_PARAMS, |
| CMD_SYNC, sizeof(tkip_cmd), |
| &tkip_cmd); |
| if (ret) |
| goto error; |
| } |
| |
| if (priv->have_rekey_data) { |
| memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); |
| memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN); |
| kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); |
| memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN); |
| kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); |
| kek_kck_cmd.replay_ctr = priv->replay_ctr; |
| |
| ret = iwl_trans_send_cmd_pdu(trans(priv), |
| REPLY_WOWLAN_KEK_KCK_MATERIAL, |
| CMD_SYNC, sizeof(kek_kck_cmd), |
| &kek_kck_cmd); |
| if (ret) |
| goto error; |
| } |
| } |
| |
| ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER, |
| CMD_SYNC, sizeof(wakeup_filter_cmd), |
| &wakeup_filter_cmd); |
| if (ret) |
| goto error; |
| |
| ret = iwlagn_send_patterns(priv, wowlan); |
| if (ret) |
| goto error; |
| |
| device_set_wakeup_enable(priv->bus->dev, true); |
| |
| /* Now let the ucode operate on its own */ |
| iwl_write32(priv, CSR_UCODE_DRV_GP1_SET, |
| CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
| |
| goto out; |
| |
| error: |
| priv->shrd->wowlan = false; |
| iwlagn_prepare_restart(priv); |
| ieee80211_restart_hw(priv->hw); |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| kfree(key_data.rsc_tsc); |
| return ret; |
| } |
| |
| static int iwlagn_mac_resume(struct ieee80211_hw *hw) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| struct ieee80211_vif *vif; |
| unsigned long flags; |
| u32 base, status = 0xffffffff; |
| int ret = -EIO; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| iwl_write32(priv, CSR_UCODE_DRV_GP1_CLR, |
| CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); |
| |
| base = priv->device_pointers.error_event_table; |
| if (iwlagn_hw_valid_rtc_data_addr(base)) { |
| spin_lock_irqsave(&priv->reg_lock, flags); |
| ret = iwl_grab_nic_access_silent(priv); |
| if (ret == 0) { |
| iwl_write32(priv, HBUS_TARG_MEM_RADDR, base); |
| status = iwl_read32(priv, HBUS_TARG_MEM_RDAT); |
| iwl_release_nic_access(priv); |
| } |
| spin_unlock_irqrestore(&priv->reg_lock, flags); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| if (ret == 0) { |
| if (!priv->wowlan_sram) |
| priv->wowlan_sram = |
| kzalloc(priv->ucode_wowlan.data.len, |
| GFP_KERNEL); |
| |
| if (priv->wowlan_sram) |
| _iwl_read_targ_mem_words( |
| priv, 0x800000, priv->wowlan_sram, |
| priv->ucode_wowlan.data.len / 4); |
| } |
| #endif |
| } |
| |
| /* we'll clear ctx->vif during iwlagn_prepare_restart() */ |
| vif = ctx->vif; |
| |
| priv->shrd->wowlan = false; |
| |
| device_set_wakeup_enable(priv->bus->dev, false); |
| |
| iwlagn_prepare_restart(priv); |
| |
| memset((void *)&ctx->active, 0, sizeof(ctx->active)); |
| iwl_connection_init_rx_config(priv, ctx); |
| iwlagn_set_rxon_chain(priv, ctx); |
| |
| mutex_unlock(&priv->shrd->mutex); |
| |
| ieee80211_resume_disconnect(vif); |
| |
| return 1; |
| } |
| #endif |
| |
| static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| IWL_DEBUG_MACDUMP(priv, "enter\n"); |
| |
| IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len, |
| ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate); |
| |
| if (iwlagn_tx_skb(priv, skb)) |
| dev_kfree_skb_any(skb); |
| |
| IWL_DEBUG_MACDUMP(priv, "leave\n"); |
| } |
| |
| static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_key_conf *keyconf, |
| struct ieee80211_sta *sta, |
| u32 iv32, u16 *phase1key) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key); |
| } |
| |
| static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta, |
| struct ieee80211_key_conf *key) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| struct iwl_rxon_context *ctx = vif_priv->ctx; |
| int ret; |
| bool is_default_wep_key = false; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (iwlagn_mod_params.sw_crypto) { |
| IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n"); |
| return -EOPNOTSUPP; |
| } |
| |
| /* |
| * We could program these keys into the hardware as well, but we |
| * don't expect much multicast traffic in IBSS and having keys |
| * for more stations is probably more useful. |
| * |
| * Mark key TX-only and return 0. |
| */ |
| if (vif->type == NL80211_IFTYPE_ADHOC && |
| !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) { |
| key->hw_key_idx = WEP_INVALID_OFFSET; |
| return 0; |
| } |
| |
| /* If they key was TX-only, accept deletion */ |
| if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET) |
| return 0; |
| |
| mutex_lock(&priv->shrd->mutex); |
| iwl_scan_cancel_timeout(priv, 100); |
| |
| BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT); |
| |
| /* |
| * If we are getting WEP group key and we didn't receive any key mapping |
| * so far, we are in legacy wep mode (group key only), otherwise we are |
| * in 1X mode. |
| * In legacy wep mode, we use another host command to the uCode. |
| */ |
| if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) { |
| if (cmd == SET_KEY) |
| is_default_wep_key = !ctx->key_mapping_keys; |
| else |
| is_default_wep_key = |
| key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT; |
| } |
| |
| |
| switch (cmd) { |
| case SET_KEY: |
| if (is_default_wep_key) { |
| ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key); |
| break; |
| } |
| ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta); |
| if (ret) { |
| /* |
| * can't add key for RX, but we don't need it |
| * in the device for TX so still return 0 |
| */ |
| ret = 0; |
| key->hw_key_idx = WEP_INVALID_OFFSET; |
| } |
| |
| IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n"); |
| break; |
| case DISABLE_KEY: |
| if (is_default_wep_key) |
| ret = iwl_remove_default_wep_key(priv, ctx, key); |
| else |
| ret = iwl_remove_dynamic_key(priv, ctx, key, sta); |
| |
| IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n"); |
| break; |
| default: |
| ret = -EINVAL; |
| } |
| |
| mutex_unlock(&priv->shrd->mutex); |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| |
| return ret; |
| } |
| |
| static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| enum ieee80211_ampdu_mlme_action action, |
| struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
| u8 buf_size) |
| { |
| struct iwl_priv *priv = hw->priv; |
| int ret = -EINVAL; |
| struct iwl_station_priv *sta_priv = (void *) sta->drv_priv; |
| |
| IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n", |
| sta->addr, tid); |
| |
| if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)) |
| return -EACCES; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| switch (action) { |
| case IEEE80211_AMPDU_RX_START: |
| IWL_DEBUG_HT(priv, "start Rx\n"); |
| ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); |
| break; |
| case IEEE80211_AMPDU_RX_STOP: |
| IWL_DEBUG_HT(priv, "stop Rx\n"); |
| ret = iwl_sta_rx_agg_stop(priv, sta, tid); |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| ret = 0; |
| break; |
| case IEEE80211_AMPDU_TX_START: |
| IWL_DEBUG_HT(priv, "start Tx\n"); |
| ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); |
| if (ret == 0) { |
| priv->agg_tids_count++; |
| IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", |
| priv->agg_tids_count); |
| } |
| break; |
| case IEEE80211_AMPDU_TX_STOP: |
| IWL_DEBUG_HT(priv, "stop Tx\n"); |
| ret = iwlagn_tx_agg_stop(priv, vif, sta, tid); |
| if ((ret == 0) && (priv->agg_tids_count > 0)) { |
| priv->agg_tids_count--; |
| IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n", |
| priv->agg_tids_count); |
| } |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) |
| ret = 0; |
| if (priv->cfg->ht_params && |
| priv->cfg->ht_params->use_rts_for_aggregation) { |
| /* |
| * switch off RTS/CTS if it was previously enabled |
| */ |
| sta_priv->lq_sta.lq.general_params.flags &= |
| ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; |
| iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), |
| &sta_priv->lq_sta.lq, CMD_ASYNC, false); |
| } |
| break; |
| case IEEE80211_AMPDU_TX_OPERATIONAL: |
| buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF); |
| |
| iwl_trans_txq_agg_setup(trans(priv), iwl_sta_id(sta), tid, |
| buf_size); |
| |
| /* |
| * If the limit is 0, then it wasn't initialised yet, |
| * use the default. We can do that since we take the |
| * minimum below, and we don't want to go above our |
| * default due to hardware restrictions. |
| */ |
| if (sta_priv->max_agg_bufsize == 0) |
| sta_priv->max_agg_bufsize = |
| LINK_QUAL_AGG_FRAME_LIMIT_DEF; |
| |
| /* |
| * Even though in theory the peer could have different |
| * aggregation reorder buffer sizes for different sessions, |
| * our ucode doesn't allow for that and has a global limit |
| * for each station. Therefore, use the minimum of all the |
| * aggregation sessions and our default value. |
| */ |
| sta_priv->max_agg_bufsize = |
| min(sta_priv->max_agg_bufsize, buf_size); |
| |
| if (priv->cfg->ht_params && |
| priv->cfg->ht_params->use_rts_for_aggregation) { |
| /* |
| * switch to RTS/CTS if it is the prefer protection |
| * method for HT traffic |
| */ |
| |
| sta_priv->lq_sta.lq.general_params.flags |= |
| LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK; |
| } |
| |
| sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit = |
| sta_priv->max_agg_bufsize; |
| |
| iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif), |
| &sta_priv->lq_sta.lq, CMD_ASYNC, false); |
| |
| IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n", |
| sta->addr, tid); |
| ret = 0; |
| break; |
| } |
| mutex_unlock(&priv->shrd->mutex); |
| |
| return ret; |
| } |
| |
| static int iwlagn_mac_sta_add(struct ieee80211_hw *hw, |
| struct ieee80211_vif *vif, |
| struct ieee80211_sta *sta) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; |
| struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv; |
| bool is_ap = vif->type == NL80211_IFTYPE_STATION; |
| int ret; |
| u8 sta_id; |
| |
| IWL_DEBUG_INFO(priv, "received request to add station %pM\n", |
| sta->addr); |
| mutex_lock(&priv->shrd->mutex); |
| IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n", |
| sta->addr); |
| sta_priv->common.sta_id = IWL_INVALID_STATION; |
| |
| atomic_set(&sta_priv->pending_frames, 0); |
| if (vif->type == NL80211_IFTYPE_AP) |
| sta_priv->client = true; |
| |
| ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr, |
| is_ap, sta, &sta_id); |
| if (ret) { |
| IWL_ERR(priv, "Unable to add station %pM (%d)\n", |
| sta->addr, ret); |
| /* Should we return success if return code is EEXIST ? */ |
| mutex_unlock(&priv->shrd->mutex); |
| return ret; |
| } |
| |
| sta_priv->common.sta_id = sta_id; |
| |
| /* Initialize rate scaling */ |
| IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n", |
| sta->addr); |
| iwl_rs_rate_init(priv, sta, sta_id); |
| mutex_unlock(&priv->shrd->mutex); |
| |
| return 0; |
| } |
| |
| static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw, |
| struct ieee80211_channel_switch *ch_switch) |
| { |
| struct iwl_priv *priv = hw->priv; |
| const struct iwl_channel_info *ch_info; |
| struct ieee80211_conf *conf = &hw->conf; |
| struct ieee80211_channel *channel = ch_switch->channel; |
| struct iwl_ht_config *ht_conf = &priv->current_ht_config; |
| /* |
| * MULTI-FIXME |
| * When we add support for multiple interfaces, we need to |
| * revisit this. The channel switch command in the device |
| * only affects the BSS context, but what does that really |
| * mean? And what if we get a CSA on the second interface? |
| * This needs a lot of work. |
| */ |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; |
| u16 ch; |
| |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if (iwl_is_rfkill(priv)) |
| goto out; |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) || |
| test_bit(STATUS_SCANNING, &priv->shrd->status) || |
| test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status)) |
| goto out; |
| |
| if (!iwl_is_associated_ctx(ctx)) |
| goto out; |
| |
| if (!priv->cfg->lib->set_channel_switch) |
| goto out; |
| |
| ch = channel->hw_value; |
| if (le16_to_cpu(ctx->active.channel) == ch) |
| goto out; |
| |
| ch_info = iwl_get_channel_info(priv, channel->band, ch); |
| if (!is_channel_valid(ch_info)) { |
| IWL_DEBUG_MAC80211(priv, "invalid channel\n"); |
| goto out; |
| } |
| |
| spin_lock_irq(&priv->shrd->lock); |
| |
| priv->current_ht_config.smps = conf->smps_mode; |
| |
| /* Configure HT40 channels */ |
| ctx->ht.enabled = conf_is_ht(conf); |
| if (ctx->ht.enabled) { |
| if (conf_is_ht40_minus(conf)) { |
| ctx->ht.extension_chan_offset = |
| IEEE80211_HT_PARAM_CHA_SEC_BELOW; |
| ctx->ht.is_40mhz = true; |
| } else if (conf_is_ht40_plus(conf)) { |
| ctx->ht.extension_chan_offset = |
| IEEE80211_HT_PARAM_CHA_SEC_ABOVE; |
| ctx->ht.is_40mhz = true; |
| } else { |
| ctx->ht.extension_chan_offset = |
| IEEE80211_HT_PARAM_CHA_SEC_NONE; |
| ctx->ht.is_40mhz = false; |
| } |
| } else |
| ctx->ht.is_40mhz = false; |
| |
| if ((le16_to_cpu(ctx->staging.channel) != ch)) |
| ctx->staging.flags = 0; |
| |
| iwl_set_rxon_channel(priv, channel, ctx); |
| iwl_set_rxon_ht(priv, ht_conf); |
| iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif); |
| |
| spin_unlock_irq(&priv->shrd->lock); |
| |
| iwl_set_rate(priv); |
| /* |
| * at this point, staging_rxon has the |
| * configuration for channel switch |
| */ |
| set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); |
| priv->switch_channel = cpu_to_le16(ch); |
| if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) { |
| clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status); |
| priv->switch_channel = 0; |
| ieee80211_chswitch_done(ctx->vif, false); |
| } |
| |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| |
| static void iwlagn_configure_filter(struct ieee80211_hw *hw, |
| unsigned int changed_flags, |
| unsigned int *total_flags, |
| u64 multicast) |
| { |
| struct iwl_priv *priv = hw->priv; |
| __le32 filter_or = 0, filter_nand = 0; |
| struct iwl_rxon_context *ctx; |
| |
| #define CHK(test, flag) do { \ |
| if (*total_flags & (test)) \ |
| filter_or |= (flag); \ |
| else \ |
| filter_nand |= (flag); \ |
| } while (0) |
| |
| IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n", |
| changed_flags, *total_flags); |
| |
| CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK); |
| /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */ |
| CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK); |
| CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK); |
| |
| #undef CHK |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| for_each_context(priv, ctx) { |
| ctx->staging.filter_flags &= ~filter_nand; |
| ctx->staging.filter_flags |= filter_or; |
| |
| /* |
| * Not committing directly because hardware can perform a scan, |
| * but we'll eventually commit the filter flags change anyway. |
| */ |
| } |
| |
| mutex_unlock(&priv->shrd->mutex); |
| |
| /* |
| * Receiving all multicast frames is always enabled by the |
| * default flags setup in iwl_connection_init_rx_config() |
| * since we currently do not support programming multicast |
| * filters into the device. |
| */ |
| *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS | |
| FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; |
| } |
| |
| static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->shrd->mutex); |
| IWL_DEBUG_MAC80211(priv, "enter\n"); |
| |
| if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) { |
| IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n"); |
| goto done; |
| } |
| if (iwl_is_rfkill(priv)) { |
| IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n"); |
| goto done; |
| } |
| |
| /* |
| * mac80211 will not push any more frames for transmit |
| * until the flush is completed |
| */ |
| if (drop) { |
| IWL_DEBUG_MAC80211(priv, "send flush command\n"); |
| if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) { |
| IWL_ERR(priv, "flush request fail\n"); |
| goto done; |
| } |
| } |
| IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); |
| iwlagn_wait_tx_queue_empty(priv); |
| done: |
| mutex_unlock(&priv->shrd->mutex); |
| IWL_DEBUG_MAC80211(priv, "leave\n"); |
| } |
| |
| void iwlagn_disable_roc(struct iwl_priv *priv) |
| { |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
| |
| lockdep_assert_held(&priv->shrd->mutex); |
| |
| if (!priv->hw_roc_setup) |
| return; |
| |
| ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
| ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; |
| |
| priv->hw_roc_channel = NULL; |
| |
| memset(ctx->staging.node_addr, 0, ETH_ALEN); |
| |
| iwlagn_commit_rxon(priv, ctx); |
| |
| ctx->is_active = false; |
| priv->hw_roc_setup = false; |
| } |
| |
| static void iwlagn_disable_roc_work(struct work_struct *work) |
| { |
| struct iwl_priv *priv = container_of(work, struct iwl_priv, |
| hw_roc_disable_work.work); |
| |
| mutex_lock(&priv->shrd->mutex); |
| iwlagn_disable_roc(priv); |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw, |
| struct ieee80211_channel *channel, |
| enum nl80211_channel_type channel_type, |
| int duration) |
| { |
| struct iwl_priv *priv = hw->priv; |
| struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; |
| int err = 0; |
| |
| if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
| return -EOPNOTSUPP; |
| |
| if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| /* |
| * TODO: Remove this hack! Firmware needs to be updated |
| * to allow longer off-channel periods in scanning for |
| * this use case, based on a flag (and we'll need an API |
| * flag in the firmware when it has that). |
| */ |
| if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && duration > 80) |
| duration = 80; |
| |
| if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) { |
| err = -EBUSY; |
| goto out; |
| } |
| |
| priv->hw_roc_channel = channel; |
| priv->hw_roc_chantype = channel_type; |
| priv->hw_roc_duration = duration; |
| cancel_delayed_work(&priv->hw_roc_disable_work); |
| |
| if (!ctx->is_active) { |
| ctx->is_active = true; |
| ctx->staging.dev_type = RXON_DEV_TYPE_P2P; |
| memcpy(ctx->staging.node_addr, |
| priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, |
| ETH_ALEN); |
| memcpy(ctx->staging.bssid_addr, |
| priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, |
| ETH_ALEN); |
| err = iwlagn_commit_rxon(priv, ctx); |
| if (err) |
| goto out; |
| ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | |
| RXON_FILTER_PROMISC_MSK | |
| RXON_FILTER_CTL2HOST_MSK; |
| |
| err = iwlagn_commit_rxon(priv, ctx); |
| if (err) { |
| iwlagn_disable_roc(priv); |
| goto out; |
| } |
| priv->hw_roc_setup = true; |
| } |
| |
| err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); |
| if (err) |
| iwlagn_disable_roc(priv); |
| |
| out: |
| mutex_unlock(&priv->shrd->mutex); |
| |
| return err; |
| } |
| |
| static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) |
| return -EOPNOTSUPP; |
| |
| mutex_lock(&priv->shrd->mutex); |
| iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); |
| iwlagn_disable_roc(priv); |
| mutex_unlock(&priv->shrd->mutex); |
| |
| return 0; |
| } |
| |
| /***************************************************************************** |
| * |
| * driver setup and teardown |
| * |
| *****************************************************************************/ |
| |
| static void iwl_setup_deferred_work(struct iwl_priv *priv) |
| { |
| priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME); |
| |
| init_waitqueue_head(&priv->wait_command_queue); |
| |
| INIT_WORK(&priv->restart, iwl_bg_restart); |
| INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update); |
| INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work); |
| INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); |
| INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); |
| INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); |
| INIT_DELAYED_WORK(&priv->hw_roc_disable_work, |
| iwlagn_disable_roc_work); |
| |
| iwl_setup_scan_deferred_work(priv); |
| |
| if (priv->cfg->lib->bt_setup_deferred_work) |
| priv->cfg->lib->bt_setup_deferred_work(priv); |
| |
| init_timer(&priv->statistics_periodic); |
| priv->statistics_periodic.data = (unsigned long)priv; |
| priv->statistics_periodic.function = iwl_bg_statistics_periodic; |
| |
| init_timer(&priv->ucode_trace); |
| priv->ucode_trace.data = (unsigned long)priv; |
| priv->ucode_trace.function = iwl_bg_ucode_trace; |
| |
| init_timer(&priv->watchdog); |
| priv->watchdog.data = (unsigned long)priv; |
| priv->watchdog.function = iwl_bg_watchdog; |
| } |
| |
| static void iwl_cancel_deferred_work(struct iwl_priv *priv) |
| { |
| if (priv->cfg->lib->cancel_deferred_work) |
| priv->cfg->lib->cancel_deferred_work(priv); |
| |
| cancel_work_sync(&priv->run_time_calib_work); |
| cancel_work_sync(&priv->beacon_update); |
| |
| iwl_cancel_scan_deferred_work(priv); |
| |
| cancel_work_sync(&priv->bt_full_concurrency); |
| cancel_work_sync(&priv->bt_runtime_config); |
| cancel_delayed_work_sync(&priv->hw_roc_disable_work); |
| |
| del_timer_sync(&priv->statistics_periodic); |
| del_timer_sync(&priv->ucode_trace); |
| } |
| |
| static void iwl_init_hw_rates(struct iwl_priv *priv, |
| struct ieee80211_rate *rates) |
| { |
| int i; |
| |
| for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) { |
| rates[i].bitrate = iwl_rates[i].ieee * 5; |
| rates[i].hw_value = i; /* Rate scaling will work on indexes */ |
| rates[i].hw_value_short = i; |
| rates[i].flags = 0; |
| if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) { |
| /* |
| * If CCK != 1M then set short preamble rate flag. |
| */ |
| rates[i].flags |= |
| (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ? |
| 0 : IEEE80211_RATE_SHORT_PREAMBLE; |
| } |
| } |
| } |
| |
| static int iwl_init_drv(struct iwl_priv *priv) |
| { |
| int ret; |
| |
| spin_lock_init(&priv->shrd->sta_lock); |
| spin_lock_init(&priv->hcmd_lock); |
| |
| mutex_init(&priv->shrd->mutex); |
| |
| priv->ieee_channels = NULL; |
| priv->ieee_rates = NULL; |
| priv->band = IEEE80211_BAND_2GHZ; |
| |
| priv->iw_mode = NL80211_IFTYPE_STATION; |
| priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; |
| priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; |
| priv->agg_tids_count = 0; |
| |
| /* initialize force reset */ |
| priv->force_reset[IWL_RF_RESET].reset_duration = |
| IWL_DELAY_NEXT_FORCE_RF_RESET; |
| priv->force_reset[IWL_FW_RESET].reset_duration = |
| IWL_DELAY_NEXT_FORCE_FW_RELOAD; |
| |
| priv->rx_statistics_jiffies = jiffies; |
| |
| /* Choose which receivers/antennas to use */ |
| iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]); |
| |
| iwl_init_scan_params(priv); |
| |
| /* init bt coex */ |
| if (priv->cfg->bt_params && |
| priv->cfg->bt_params->advanced_bt_coexist) { |
| priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; |
| priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; |
| priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; |
| priv->bt_on_thresh = BT_ON_THRESHOLD_DEF; |
| priv->bt_duration = BT_DURATION_LIMIT_DEF; |
| priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF; |
| } |
| |
| ret = iwl_init_channel_map(priv); |
| if (ret) { |
| IWL_ERR(priv, "initializing regulatory failed: %d\n", ret); |
| goto err; |
| } |
| |
| ret = iwl_init_geos(priv); |
| if (ret) { |
| IWL_ERR(priv, "initializing geos failed: %d\n", ret); |
| goto err_free_channel_map; |
| } |
| iwl_init_hw_rates(priv, priv->ieee_rates); |
| |
| return 0; |
| |
| err_free_channel_map: |
| iwl_free_channel_map(priv); |
| err: |
| return ret; |
| } |
| |
| static void iwl_uninit_drv(struct iwl_priv *priv) |
| { |
| iwl_calib_free_results(priv); |
| iwl_free_geos(priv); |
| iwl_free_channel_map(priv); |
| kfree(priv->scan_cmd); |
| kfree(priv->beacon_cmd); |
| #ifdef CONFIG_IWLWIFI_DEBUGFS |
| kfree(priv->wowlan_sram); |
| #endif |
| } |
| |
| static void iwl_mac_rssi_callback(struct ieee80211_hw *hw, |
| enum ieee80211_rssi_event rssi_event) |
| { |
| struct iwl_priv *priv = hw->priv; |
| |
| mutex_lock(&priv->shrd->mutex); |
| |
| if (priv->cfg->bt_params && |
| priv->cfg->bt_params->advanced_bt_coexist) { |
| if (rssi_event == RSSI_EVENT_LOW) |
| priv->bt_enable_pspoll = true; |
| else if (rssi_event == RSSI_EVENT_HIGH) |
| priv->bt_enable_pspoll = false; |
| |
| iwlagn_send_advance_bt_config(priv); |
| } else { |
| IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled," |
| "ignoring RSSI callback\n"); |
| } |
| |
| mutex_unlock(&priv->shrd->mutex); |
| } |
| |
| struct ieee80211_ops iwlagn_hw_ops = { |
| .tx = iwlagn_mac_tx, |
| .start = iwlagn_mac_start, |
| .stop = iwlagn_mac_stop, |
| #ifdef CONFIG_PM |
| .suspend = iwlagn_mac_suspend, |
| .resume = iwlagn_mac_resume, |
| #endif |
| .add_interface = iwl_mac_add_interface, |
| .remove_interface = iwl_mac_remove_interface, |
| .change_interface = iwl_mac_change_interface, |
| .config = iwlagn_mac_config, |
| .configure_filter = iwlagn_configure_filter, |
| .set_key = iwlagn_mac_set_key, |
| .update_tkip_key = iwlagn_mac_update_tkip_key, |
| .set_rekey_data = iwlagn_mac_set_rekey_data, |
| .conf_tx = iwl_mac_conf_tx, |
| .bss_info_changed = iwlagn_bss_info_changed, |
| .ampdu_action = iwlagn_mac_ampdu_action, |
| .hw_scan = iwl_mac_hw_scan, |
| .sta_notify = iwlagn_mac_sta_notify, |
| .sta_add = iwlagn_mac_sta_add, |
| .sta_remove = iwl_mac_sta_remove, |
| .channel_switch = iwlagn_mac_channel_switch, |
| .flush = iwlagn_mac_flush, |
| .tx_last_beacon = iwl_mac_tx_last_beacon, |
| .remain_on_channel = iwl_mac_remain_on_channel, |
| .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel, |
| .rssi_callback = iwl_mac_rssi_callback, |
| CFG80211_TESTMODE_CMD(iwl_testmode_cmd) |
| CFG80211_TESTMODE_DUMP(iwl_testmode_dump) |
| }; |
| |
| static u32 iwl_hw_detect(struct iwl_priv *priv) |
| { |
| return iwl_read32(priv, CSR_HW_REV); |
| } |
| |
| static int iwl_set_hw_params(struct iwl_priv *priv) |
| { |
| hw_params(priv).max_rxq_size = RX_QUEUE_SIZE; |
| hw_params(priv).max_rxq_log = RX_QUEUE_SIZE_LOG; |
| if (iwlagn_mod_params.amsdu_size_8K) |
| hw_params(priv).rx_page_order = |
| get_order(IWL_RX_BUF_SIZE_8K); |
| else |
| hw_params(priv).rx_page_order = |
| get_order(IWL_RX_BUF_SIZE_4K); |
| |
| hw_params(priv).max_beacon_itrvl = IWL_MAX_UCODE_BEACON_INTERVAL; |
| |
| if (iwlagn_mod_params.disable_11n) |
| priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; |
| |
| /* Device-specific setup */ |
| return priv->cfg->lib->set_hw_params(priv); |
| } |
| |
| /* This function both allocates and initializes hw and priv. */ |
| static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg) |
| { |
| struct iwl_priv *priv; |
| /* mac80211 allocates memory for this device instance, including |
| * space for this driver's private structure */ |
| struct ieee80211_hw *hw; |
| |
| hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops); |
| if (hw == NULL) { |
| pr_err("%s: Can not allocate network device\n", |
| cfg->name); |
| goto out; |
| } |
| |
| priv = hw->priv; |
| priv->hw = hw; |
| |
| out: |
| return hw; |
| } |
| |
| int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops, |
| struct iwl_cfg *cfg) |
| { |
| int err = 0; |
| struct iwl_priv *priv; |
| struct ieee80211_hw *hw; |
| u16 num_mac; |
| u32 hw_rev; |
| |
| /************************ |
| * 1. Allocating HW data |
| ************************/ |
| hw = iwl_alloc_all(cfg); |
| if (!hw) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| priv = hw->priv; |
| priv->bus = bus; |
| priv->shrd = &priv->_shrd; |
| priv->shrd->bus = bus; |
| priv->shrd->priv = priv; |
| bus_set_drv_data(priv->bus, priv->shrd); |
| |
| priv->shrd->trans = trans_ops->alloc(priv->shrd); |
| if (priv->shrd->trans == NULL) { |
| err = -ENOMEM; |
| goto out_free_traffic_mem; |
| } |
| |
| /* At this point both hw and priv are allocated. */ |
| |
| SET_IEEE80211_DEV(hw, priv->bus->dev); |
| |
| IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); |
| priv->cfg = cfg; |
| |
| /* is antenna coupling more than 35dB ? */ |
| priv->bt_ant_couple_ok = |
| (iwlagn_mod_params.ant_coupling > |
| IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? |
| true : false; |
| |
| /* enable/disable bt channel inhibition */ |
| priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce; |
| IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", |
| (priv->bt_ch_announce) ? "On" : "Off"); |
| |
| if (iwl_alloc_traffic_mem(priv)) |
| IWL_ERR(priv, "Not enough memory to generate traffic log\n"); |
| |
| /* these spin locks will be used in apm_ops.init and EEPROM access |
| * we should init now |
| */ |
| spin_lock_init(&priv->reg_lock); |
| spin_lock_init(&priv->shrd->lock); |
| |
| /* |
| * stop and reset the on-board processor just in case it is in a |
| * strange state ... like being left stranded by a primary kernel |
| * and this is now the kdump kernel trying to start up |
| */ |
| iwl_write32(priv, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); |
| |
| /*********************** |
| * 3. Read REV register |
| ***********************/ |
| hw_rev = iwl_hw_detect(priv); |
| IWL_INFO(priv, "Detected %s, REV=0x%X\n", |
| priv->cfg->name, hw_rev); |
| |
| err = iwl_trans_request_irq(trans(priv)); |
| if (err) |
| goto out_free_trans; |
| |
| if (iwl_trans_prepare_card_hw(trans(priv))) { |
| err = -EIO; |
| IWL_WARN(priv, "Failed, HW not ready\n"); |
| goto out_free_trans; |
| } |
| |
| /***************** |
| * 4. Read EEPROM |
| *****************/ |
| /* Read the EEPROM */ |
| err = iwl_eeprom_init(priv, hw_rev); |
| if (err) { |
| IWL_ERR(priv, "Unable to init EEPROM\n"); |
| goto out_free_trans; |
| } |
| err = iwl_eeprom_check_version(priv); |
| if (err) |
| goto out_free_eeprom; |
| |
| err = iwl_eeprom_check_sku(priv); |
| if (err) |
| goto out_free_eeprom; |
| |
| /* extract MAC Address */ |
| iwl_eeprom_get_mac(priv, priv->addresses[0].addr); |
| IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr); |
| priv->hw->wiphy->addresses = priv->addresses; |
| priv->hw->wiphy->n_addresses = 1; |
| num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS); |
| if (num_mac > 1) { |
| memcpy(priv->addresses[1].addr, priv->addresses[0].addr, |
| ETH_ALEN); |
| priv->addresses[1].addr[5]++; |
| priv->hw->wiphy->n_addresses++; |
| } |
| |
| /************************ |
| * 5. Setup HW constants |
| ************************/ |
| if (iwl_set_hw_params(priv)) { |
| err = -ENOENT; |
| IWL_ERR(priv, "failed to set hw parameters\n"); |
| goto out_free_eeprom; |
| } |
| |
| /******************* |
| * 6. Setup priv |
| *******************/ |
| |
| err = iwl_init_drv(priv); |
| if (err) |
| goto out_free_eeprom; |
| /* At this point both hw and priv are initialized. */ |
| |
| /******************** |
| * 7. Setup services |
| ********************/ |
| iwl_setup_deferred_work(priv); |
| iwl_setup_rx_handlers(priv); |
| iwl_testmode_init(priv); |
| |
| /********************************************* |
| * 8. Enable interrupts |
| *********************************************/ |
| |
| iwl_enable_rfkill_int(priv); |
| |
| /* If platform's RF_KILL switch is NOT set to KILL */ |
| if (iwl_read32(priv, CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW) |
| clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
| else |
| set_bit(STATUS_RF_KILL_HW, &priv->shrd->status); |
| |
| wiphy_rfkill_set_hw_state(priv->hw->wiphy, |
| test_bit(STATUS_RF_KILL_HW, &priv->shrd->status)); |
| |
| iwl_power_initialize(priv); |
| iwl_tt_initialize(priv); |
| |
| init_completion(&priv->firmware_loading_complete); |
| |
| err = iwl_request_firmware(priv, true); |
| if (err) |
| goto out_destroy_workqueue; |
| |
| return 0; |
| |
| out_destroy_workqueue: |
| destroy_workqueue(priv->shrd->workqueue); |
| priv->shrd->workqueue = NULL; |
| iwl_uninit_drv(priv); |
| out_free_eeprom: |
| iwl_eeprom_free(priv); |
| out_free_trans: |
| iwl_trans_free(trans(priv)); |
| out_free_traffic_mem: |
| iwl_free_traffic_mem(priv); |
| ieee80211_free_hw(priv->hw); |
| out: |
| return err; |
| } |
| |
| void __devexit iwl_remove(struct iwl_priv * priv) |
| { |
| wait_for_completion(&priv->firmware_loading_complete); |
| |
| IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); |
| |
| iwl_dbgfs_unregister(priv); |
| sysfs_remove_group(&priv->bus->dev->kobj, |
| &iwl_attribute_group); |
| |
| /* ieee80211_unregister_hw call wil cause iwl_mac_stop to |
| * to be called and iwl_down since we are removing the device |
| * we need to set STATUS_EXIT_PENDING bit. |
| */ |
| set_bit(STATUS_EXIT_PENDING, &priv->shrd->status); |
| |
| iwl_testmode_cleanup(priv); |
| iwl_leds_exit(priv); |
| |
| if (priv->mac80211_registered) { |
| ieee80211_unregister_hw(priv->hw); |
| priv->mac80211_registered = 0; |
| } |
| |
| /* Reset to low power before unloading driver. */ |
| iwl_apm_stop(priv); |
| |
| iwl_tt_exit(priv); |
| |
| /* make sure we flush any pending irq or |
| * tasklet for the driver */ |
| iwl_trans_disable_sync_irq(trans(priv)); |
| |
| iwl_dealloc_ucode(priv); |
| |
| iwl_trans_rx_free(trans(priv)); |
| iwl_trans_tx_free(trans(priv)); |
| |
| iwl_eeprom_free(priv); |
| |
| /*netif_stop_queue(dev); */ |
| flush_workqueue(priv->shrd->workqueue); |
| |
| /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes |
| * priv->shrd->workqueue... so we can't take down the workqueue |
| * until now... */ |
| destroy_workqueue(priv->shrd->workqueue); |
| priv->shrd->workqueue = NULL; |
| iwl_free_traffic_mem(priv); |
| |
| iwl_trans_free(trans(priv)); |
| |
| bus_set_drv_data(priv->bus, NULL); |
| |
| iwl_uninit_drv(priv); |
| |
| dev_kfree_skb(priv->beacon_skb); |
| |
| ieee80211_free_hw(priv->hw); |
| } |
| |
| |
| /***************************************************************************** |
| * |
| * driver and module entry point |
| * |
| *****************************************************************************/ |
| static int __init iwl_init(void) |
| { |
| |
| int ret; |
| pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n"); |
| pr_info(DRV_COPYRIGHT "\n"); |
| |
| ret = iwlagn_rate_control_register(); |
| if (ret) { |
| pr_err("Unable to register rate control algorithm: %d\n", ret); |
| return ret; |
| } |
| |
| ret = iwl_pci_register_driver(); |
| |
| if (ret) |
| goto error_register; |
| return ret; |
| |
| error_register: |
| iwlagn_rate_control_unregister(); |
| return ret; |
| } |
| |
| static void __exit iwl_exit(void) |
| { |
| iwl_pci_unregister_driver(); |
| iwlagn_rate_control_unregister(); |
| } |
| |
| module_exit(iwl_exit); |
| module_init(iwl_init); |
| |
| #ifdef CONFIG_IWLWIFI_DEBUG |
| module_param_named(debug, iwlagn_mod_params.debug_level, uint, |
| S_IRUGO | S_IWUSR); |
| MODULE_PARM_DESC(debug, "debug output mask"); |
| #endif |
| |
| module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); |
| MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); |
| module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); |
| MODULE_PARM_DESC(queues_num, "number of hw queues."); |
| module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); |
| MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); |
| module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, |
| int, S_IRUGO); |
| MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); |
| module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); |
| MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); |
| |
| module_param_named(ucode_alternative, |
| iwlagn_mod_params.wanted_ucode_alternative, |
| int, S_IRUGO); |
| MODULE_PARM_DESC(ucode_alternative, |
| "specify ucode alternative to use from ucode file"); |
| |
| module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling, |
| int, S_IRUGO); |
| MODULE_PARM_DESC(antenna_coupling, |
| "specify antenna coupling in dB (defualt: 0 dB)"); |
| |
| module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce, |
| bool, S_IRUGO); |
| MODULE_PARM_DESC(bt_ch_inhibition, |
| "Disable BT channel inhibition (default: enable)"); |
| |
| module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO); |
| MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); |
| |
| module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO); |
| MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])"); |
| |
| module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO); |
| MODULE_PARM_DESC(wd_disable, |
| "Disable stuck queue watchdog timer (default: 0 [enabled])"); |
| |
| /* |
| * set bt_coex_active to true, uCode will do kill/defer |
| * every time the priority line is asserted (BT is sending signals on the |
| * priority line in the PCIx). |
| * set bt_coex_active to false, uCode will ignore the BT activity and |
| * perform the normal operation |
| * |
| * User might experience transmit issue on some platform due to WiFi/BT |
| * co-exist problem. The possible behaviors are: |
| * Able to scan and finding all the available AP |
| * Not able to associate with any AP |
| * On those platforms, WiFi communication can be restored by set |
| * "bt_coex_active" module parameter to "false" |
| * |
| * default: bt_coex_active = true (BT_COEX_ENABLE) |
| */ |
| module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active, |
| bool, S_IRUGO); |
| MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)"); |
| |
| module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO); |
| MODULE_PARM_DESC(led_mode, "0=system default, " |
| "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)"); |
| |
| module_param_named(power_save, iwlagn_mod_params.power_save, |
| bool, S_IRUGO); |
| MODULE_PARM_DESC(power_save, |
| "enable WiFi power management (default: disable)"); |
| |
| module_param_named(power_level, iwlagn_mod_params.power_level, |
| int, S_IRUGO); |
| MODULE_PARM_DESC(power_level, |
| "default power save level (range from 1 - 5, default: 1)"); |
| |
| module_param_named(auto_agg, iwlagn_mod_params.auto_agg, |
| bool, S_IRUGO); |
| MODULE_PARM_DESC(auto_agg, |
| "enable agg w/o check traffic load (default: enable)"); |
| |
| /* |
| * For now, keep using power level 1 instead of automatically |
| * adjusting ... |
| */ |
| module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust, |
| bool, S_IRUGO); |
| MODULE_PARM_DESC(no_sleep_autoadjust, |
| "don't automatically adjust sleep level " |
| "according to maximum network latency (default: true)"); |