/****************************************************************************** * * Copyright(c) 2003 - 2012 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 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 * *****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include "iwl-ucode.h" #include "iwl-eeprom.h" #include "iwl-wifi.h" #include "iwl-dev.h" #include "iwl-core.h" #include "iwl-io.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"); MODULE_ALIAS("iwlagn"); 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->shrd)) 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->shrd)) 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->shrd)) 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 capacity, 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(&trans(priv)->reg_lock, reg_flags); if (iwl_grab_nic_access(trans(priv))) { spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags); return; } /* Set starting address; reads will auto-increment */ iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr); rmb(); /* * Refuse to read more than would have fit into the log from * the current start_idx. This used to happen due to the race * described below, but now WARN because the code below should * prevent it from happening here. */ if (WARN_ON(num_events > capacity - start_idx)) num_events = capacity - start_idx; /* * "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(trans(priv), HBUS_TARG_MEM_RDAT); time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); if (mode == 0) { trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev); } else { data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT); trace_iwlwifi_dev_ucode_cont_event(priv, time, data, ev); } } /* Allow device to power down */ iwl_release_nic_access(trans(priv)); spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags); } static void iwl_continuous_event_trace(struct iwl_priv *priv) { u32 capacity; /* event log capacity in # entries */ struct { u32 capacity; u32 mode; u32 wrap_counter; u32 write_counter; } __packed read; 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->shrd->device_pointers.log_event_table; if (iwlagn_hw_valid_rtc_data_addr(base)) { iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read)); capacity = read.capacity; mode = read.mode; num_wraps = read.wrap_counter; next_entry = read.write_counter; } else return; /* * Unfortunately, the uCode doesn't use temporary variables. * Therefore, it can happen that we read next_entry == capacity, * which really means next_entry == 0. */ if (unlikely(next_entry == capacity)) next_entry = 0; /* * Additionally, the uCode increases the write pointer before * the wraps counter, so if the write pointer is smaller than * the old write pointer (wrap occurred) but we read that no * wrap occurred, we actually read between the next_entry and * num_wraps update (this does happen in practice!!) -- take * that into account by increasing num_wraps. */ if (unlikely(next_entry < priv->event_log.next_entry && num_wraps == priv->event_log.num_wraps)) num_wraps++; 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, capacity, 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, capacity, mode); iwl_print_cont_event_trace( priv, base, 0, next_entry, capacity, mode); } else { iwl_print_cont_event_trace( priv, base, next_entry, capacity - next_entry, capacity, mode); iwl_print_cont_event_trace( priv, base, 0, next_entry, capacity, 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->shrd)) return; IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n"); iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL); } void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) { int i; /* * The default context is always valid, * the PAN context depends on uCode. */ priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS); if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) priv->shrd->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].bcast_sta_id = IWLAGN_BROADCAST_ID; 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].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); } 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(trans(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 (cfg(priv)->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_RT_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(nic(priv)->fw.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]; 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->shrd)) return -ERFKILL; if (priv->event_log.ucode_trace) { /* start collecting data now */ mod_timer(&priv->ucode_trace, jiffies); } /* download priority table before any calibration request */ if (cfg(priv)->bt_params && cfg(priv)->bt_params->advanced_bt_coexist) { /* Configure Bluetooth device coexistence support */ if (cfg(priv)->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; iwl_send_prio_tbl(trans(priv)); /* FIXME: w/a to force change uCode BT state machine */ ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_OPEN, BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; ret = iwl_send_bt_env(trans(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); } /* * Perform runtime calibrations, including DC calibration. */ iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX); 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, cfg(priv)->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); } void iwl_down(struct iwl_priv *priv) { int exit_pending; IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n"); lockdep_assert_held(&priv->shrd->mutex); 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 (cfg(priv)->bt_params) priv->bt_traffic_load = cfg(priv)->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); iwl_trans_stop_device(trans(priv)); /* 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; dev_kfree_skb(priv->beacon_skb); priv->beacon_skb = NULL; } /***************************************************************************** * * 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); } 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); } } 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); } /***************************************************************************** * * driver setup and teardown * *****************************************************************************/ static void iwl_setup_deferred_work(struct iwl_priv *priv) { priv->workqueue = create_singlethread_workqueue(DRV_NAME); init_waitqueue_head(&priv->shrd->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 (cfg(priv)->lib->bt_setup_deferred_work) cfg(priv)->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; } void iwl_cancel_deferred_work(struct iwl_priv *priv) { if (cfg(priv)->lib->cancel_deferred_work) cfg(priv)->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); mutex_init(&priv->shrd->mutex); INIT_LIST_HEAD(&trans(priv)->calib_results); 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 (cfg(priv)->bt_params && cfg(priv)->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_free_geos(priv); iwl_free_channel_map(priv); if (priv->tx_cmd_pool) kmem_cache_destroy(priv->tx_cmd_pool); kfree(priv->scan_cmd); kfree(priv->beacon_cmd); kfree(rcu_dereference_raw(priv->noa_data)); #ifdef CONFIG_IWLWIFI_DEBUGFS kfree(priv->wowlan_sram); #endif } /* Size of one Rx buffer in host DRAM */ #define IWL_RX_BUF_SIZE_4K (4 * 1024) #define IWL_RX_BUF_SIZE_8K (8 * 1024) static void iwl_set_hw_params(struct iwl_priv *priv) { 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); if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL) cfg(priv)->sku &= ~EEPROM_SKU_CAP_11N_ENABLE; hw_params(priv).num_ampdu_queues = cfg(priv)->base_params->num_of_ampdu_queues; hw_params(priv).shadow_reg_enable = cfg(priv)->base_params->shadow_reg_enable; hw_params(priv).sku = cfg(priv)->sku; hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout; /* Device-specific setup */ cfg(priv)->lib->set_hw_params(priv); } static void iwl_debug_config(struct iwl_priv *priv) { dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG " #ifdef CONFIG_IWLWIFI_DEBUG "enabled\n"); #else "disabled\n"); #endif dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS " #ifdef CONFIG_IWLWIFI_DEBUGFS "enabled\n"); #else "disabled\n"); #endif dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING " #ifdef CONFIG_IWLWIFI_DEVICE_TRACING "enabled\n"); #else "disabled\n"); #endif dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE " #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE "enabled\n"); #else "disabled\n"); #endif dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P " #ifdef CONFIG_IWLWIFI_P2P "enabled\n"); #else "disabled\n"); #endif } int iwl_op_mode_dvm_start(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops, struct iwl_cfg *cfg) { struct iwl_fw *fw = &nic(bus)->fw; int err = 0; struct iwl_priv *priv; struct ieee80211_hw *hw; u16 num_mac; u32 ucode_flags; /************************ * 1. Allocating HW data ************************/ hw = iwl_alloc_all(); if (!hw) { pr_err("%s: Cannot allocate network device\n", cfg->name); err = -ENOMEM; goto out; } priv = hw->priv; priv->shrd = bus->shrd; priv->shrd->priv = priv; /* At this point both hw and priv are allocated. */ SET_IEEE80211_DEV(hw, trans(priv)->dev); /* show what debugging capabilities we have */ iwl_debug_config(priv); IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); /* 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(&trans(priv)->reg_lock); spin_lock_init(&priv->shrd->lock); /*********************** * 3. Read REV register ***********************/ IWL_INFO(priv, "Detected %s, REV=0x%X\n", cfg(priv)->name, trans(priv)->hw_rev); err = iwl_trans_start_hw(trans(priv)); if (err) goto out_free_traffic_mem; /***************** * 4. Read EEPROM *****************/ /* Read the EEPROM */ err = iwl_eeprom_init(priv, trans(priv)->hw_rev); /* Reset chip to save power until we load uCode during "up". */ iwl_trans_stop_hw(trans(priv)); if (err) { IWL_ERR(priv, "Unable to init EEPROM\n"); goto out_free_traffic_mem; } 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->shrd, 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->shrd, 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 ************************/ iwl_set_hw_params(priv); ucode_flags = fw->ucode_capa.flags; #ifndef CONFIG_IWLWIFI_P2P ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; #endif if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE)) ucode_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_flags & IWL_UCODE_TLV_FLAGS_PAN)) ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P; /******************* * 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); iwl_power_initialize(priv); iwl_tt_initialize(priv); snprintf(priv->hw->wiphy->fw_version, sizeof(priv->hw->wiphy->fw_version), "%s", fw->fw_version); priv->new_scan_threshold_behaviour = !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN); if (ucode_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; } priv->phy_calib_chain_noise_reset_cmd = fw->ucode_capa.standard_phy_calibration_size; priv->phy_calib_chain_noise_gain_cmd = fw->ucode_capa.standard_phy_calibration_size + 1; /* initialize all valid contexts */ iwl_init_context(priv, ucode_flags); /************************************************** * This is still part of probe() in a sense... * * 9. Setup and register with mac80211 and debugfs **************************************************/ err = iwlagn_mac_setup_register(priv, &fw->ucode_capa); if (err) goto out_destroy_workqueue; err = iwl_dbgfs_register(priv, DRV_NAME); if (err) IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err); return 0; out_destroy_workqueue: destroy_workqueue(priv->workqueue); priv->workqueue = NULL; iwl_uninit_drv(priv); out_free_eeprom: iwl_eeprom_free(priv->shrd); out_free_traffic_mem: iwl_free_traffic_mem(priv); ieee80211_free_hw(priv->hw); out: return err; } int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops, struct iwl_cfg *cfg) { bus->shrd->cfg = cfg; init_completion(&nic(bus)->request_firmware_complete); return iwl_request_firmware(nic(bus), true); } void __devexit iwl_remove(struct iwl_priv * priv) { wait_for_completion(&nic(priv)->request_firmware_complete); IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); iwl_dbgfs_unregister(priv); /* ieee80211_unregister_hw call wil cause iwlagn_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); iwlagn_mac_unregister(priv); iwl_tt_exit(priv); /*This will stop the queues, move the device to low power state */ iwl_trans_stop_device(trans(priv)); iwl_dealloc_ucode(nic(priv)); iwl_eeprom_free(priv->shrd); /*netif_stop_queue(dev); */ flush_workqueue(priv->workqueue); /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes * priv->workqueue... so we can't take down the workqueue * until now... */ destroy_workqueue(priv->workqueue); priv->workqueue = NULL; iwl_free_traffic_mem(priv); 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, uint, S_IRUGO); MODULE_PARM_DESC(11n_disable, "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX"); 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, "Enable 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, int, S_IRUGO); MODULE_PARM_DESC(wd_disable, "Disable stuck queue watchdog timer 0=system default, " "1=disable, 2=enable (default: 0)"); /* * 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, 3=Off (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)");