1 /******************************************************************************
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *****************************************************************************/
29 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/delay.h>
34 #include <linux/sched.h>
35 #include <linux/skbuff.h>
36 #include <linux/netdevice.h>
37 #include <linux/etherdevice.h>
38 #include <linux/if_arp.h>
40 #include <net/mac80211.h>
42 #include <asm/div64.h>
44 #include "iwl-ucode.h"
45 #include "iwl-eeprom.h"
50 #include "iwl-agn-calib.h"
52 #include "iwl-shared.h"
53 #include "iwl-trans.h"
54 #include "iwl-op-mode.h"
56 /******************************************************************************
60 ******************************************************************************/
63 * module name, copyright, version, etc.
65 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
67 #ifdef CONFIG_IWLWIFI_DEBUG
73 #define DRV_VERSION IWLWIFI_VERSION VD
76 MODULE_DESCRIPTION(DRV_DESCRIPTION);
77 MODULE_VERSION(DRV_VERSION);
78 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
79 MODULE_LICENSE("GPL");
80 MODULE_ALIAS("iwlagn");
82 void iwl_update_chain_flags(struct iwl_priv *priv)
84 struct iwl_rxon_context *ctx;
86 for_each_context(priv, ctx) {
87 iwlagn_set_rxon_chain(priv, ctx);
88 if (ctx->active.rx_chain != ctx->staging.rx_chain)
89 iwlagn_commit_rxon(priv, ctx);
93 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
94 static void iwl_set_beacon_tim(struct iwl_priv *priv,
95 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
96 u8 *beacon, u32 frame_size)
99 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
102 * The index is relative to frame start but we start looking at the
103 * variable-length part of the beacon.
105 tim_idx = mgmt->u.beacon.variable - beacon;
107 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
108 while ((tim_idx < (frame_size - 2)) &&
109 (beacon[tim_idx] != WLAN_EID_TIM))
110 tim_idx += beacon[tim_idx+1] + 2;
112 /* If TIM field was found, set variables */
113 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
114 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
115 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
117 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
120 int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
122 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
123 struct iwl_host_cmd cmd = {
124 .id = REPLY_TX_BEACON,
127 struct ieee80211_tx_info *info;
133 * We have to set up the TX command, the TX Beacon command, and the
137 lockdep_assert_held(&priv->shrd->mutex);
139 if (!priv->beacon_ctx) {
140 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
144 if (WARN_ON(!priv->beacon_skb))
147 /* Allocate beacon command */
148 if (!priv->beacon_cmd)
149 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
150 tx_beacon_cmd = priv->beacon_cmd;
154 frame_size = priv->beacon_skb->len;
156 /* Set up TX command fields */
157 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
158 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
159 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
160 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
161 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
163 /* Set up TX beacon command fields */
164 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
167 /* Set up packet rate and flags */
168 info = IEEE80211_SKB_CB(priv->beacon_skb);
171 * Let's set up the rate at least somewhat correctly;
172 * it will currently not actually be used by the uCode,
173 * it uses the broadcast station's rate instead.
175 if (info->control.rates[0].idx < 0 ||
176 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
179 rate = info->control.rates[0].idx;
181 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
182 hw_params(priv).valid_tx_ant);
183 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
185 /* In mac80211, rates for 5 GHz start at 0 */
186 if (info->band == IEEE80211_BAND_5GHZ)
187 rate += IWL_FIRST_OFDM_RATE;
188 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
189 rate_flags |= RATE_MCS_CCK_MSK;
191 tx_beacon_cmd->tx.rate_n_flags =
192 iwl_hw_set_rate_n_flags(rate, rate_flags);
195 cmd.len[0] = sizeof(*tx_beacon_cmd);
196 cmd.data[0] = tx_beacon_cmd;
197 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
198 cmd.len[1] = frame_size;
199 cmd.data[1] = priv->beacon_skb->data;
200 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
202 return iwl_trans_send_cmd(trans(priv), &cmd);
205 static void iwl_bg_beacon_update(struct work_struct *work)
207 struct iwl_priv *priv =
208 container_of(work, struct iwl_priv, beacon_update);
209 struct sk_buff *beacon;
211 mutex_lock(&priv->shrd->mutex);
212 if (!priv->beacon_ctx) {
213 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
217 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
219 * The ucode will send beacon notifications even in
220 * IBSS mode, but we don't want to process them. But
221 * we need to defer the type check to here due to
222 * requiring locking around the beacon_ctx access.
227 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
228 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
230 IWL_ERR(priv, "update beacon failed -- keeping old\n");
234 /* new beacon skb is allocated every time; dispose previous.*/
235 dev_kfree_skb(priv->beacon_skb);
237 priv->beacon_skb = beacon;
239 iwlagn_send_beacon_cmd(priv);
241 mutex_unlock(&priv->shrd->mutex);
244 static void iwl_bg_bt_runtime_config(struct work_struct *work)
246 struct iwl_priv *priv =
247 container_of(work, struct iwl_priv, bt_runtime_config);
249 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
252 /* dont send host command if rf-kill is on */
253 if (!iwl_is_ready_rf(priv->shrd))
255 iwlagn_send_advance_bt_config(priv);
258 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
260 struct iwl_priv *priv =
261 container_of(work, struct iwl_priv, bt_full_concurrency);
262 struct iwl_rxon_context *ctx;
264 mutex_lock(&priv->shrd->mutex);
266 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
269 /* dont send host command if rf-kill is on */
270 if (!iwl_is_ready_rf(priv->shrd))
273 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
274 priv->bt_full_concurrent ?
275 "full concurrency" : "3-wire");
278 * LQ & RXON updated cmds must be sent before BT Config cmd
279 * to avoid 3-wire collisions
281 for_each_context(priv, ctx) {
282 iwlagn_set_rxon_chain(priv, ctx);
283 iwlagn_commit_rxon(priv, ctx);
286 iwlagn_send_advance_bt_config(priv);
288 mutex_unlock(&priv->shrd->mutex);
292 * iwl_bg_statistics_periodic - Timer callback to queue statistics
294 * This callback is provided in order to send a statistics request.
296 * This timer function is continually reset to execute within
297 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
298 * was received. We need to ensure we receive the statistics in order
299 * to update the temperature used for calibrating the TXPOWER.
301 static void iwl_bg_statistics_periodic(unsigned long data)
303 struct iwl_priv *priv = (struct iwl_priv *)data;
305 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
308 /* dont send host command if rf-kill is on */
309 if (!iwl_is_ready_rf(priv->shrd))
312 iwl_send_statistics_request(priv, CMD_ASYNC, false);
316 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
317 u32 start_idx, u32 num_events,
318 u32 capacity, u32 mode)
321 u32 ptr; /* SRAM byte address of log data */
322 u32 ev, time, data; /* event log data */
323 unsigned long reg_flags;
326 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
328 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
330 /* Make sure device is powered up for SRAM reads */
331 spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
332 if (iwl_grab_nic_access(trans(priv))) {
333 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
337 /* Set starting address; reads will auto-increment */
338 iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
342 * Refuse to read more than would have fit into the log from
343 * the current start_idx. This used to happen due to the race
344 * described below, but now WARN because the code below should
345 * prevent it from happening here.
347 if (WARN_ON(num_events > capacity - start_idx))
348 num_events = capacity - start_idx;
351 * "time" is actually "data" for mode 0 (no timestamp).
352 * place event id # at far right for easier visual parsing.
354 for (i = 0; i < num_events; i++) {
355 ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
356 time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
358 trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev);
360 data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
361 trace_iwlwifi_dev_ucode_cont_event(priv, time,
365 /* Allow device to power down */
366 iwl_release_nic_access(trans(priv));
367 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
370 static void iwl_continuous_event_trace(struct iwl_priv *priv)
372 u32 capacity; /* event log capacity in # entries */
379 u32 base; /* SRAM byte address of event log header */
380 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
381 u32 num_wraps; /* # times uCode wrapped to top of log */
382 u32 next_entry; /* index of next entry to be written by uCode */
384 base = priv->shrd->device_pointers.log_event_table;
385 if (iwlagn_hw_valid_rtc_data_addr(base)) {
386 iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read));
388 capacity = read.capacity;
390 num_wraps = read.wrap_counter;
391 next_entry = read.write_counter;
396 * Unfortunately, the uCode doesn't use temporary variables.
397 * Therefore, it can happen that we read next_entry == capacity,
398 * which really means next_entry == 0.
400 if (unlikely(next_entry == capacity))
403 * Additionally, the uCode increases the write pointer before
404 * the wraps counter, so if the write pointer is smaller than
405 * the old write pointer (wrap occurred) but we read that no
406 * wrap occurred, we actually read between the next_entry and
407 * num_wraps update (this does happen in practice!!) -- take
408 * that into account by increasing num_wraps.
410 if (unlikely(next_entry < priv->event_log.next_entry &&
411 num_wraps == priv->event_log.num_wraps))
414 if (num_wraps == priv->event_log.num_wraps) {
415 iwl_print_cont_event_trace(
416 priv, base, priv->event_log.next_entry,
417 next_entry - priv->event_log.next_entry,
420 priv->event_log.non_wraps_count++;
422 if (num_wraps - priv->event_log.num_wraps > 1)
423 priv->event_log.wraps_more_count++;
425 priv->event_log.wraps_once_count++;
427 trace_iwlwifi_dev_ucode_wrap_event(priv,
428 num_wraps - priv->event_log.num_wraps,
429 next_entry, priv->event_log.next_entry);
431 if (next_entry < priv->event_log.next_entry) {
432 iwl_print_cont_event_trace(
433 priv, base, priv->event_log.next_entry,
434 capacity - priv->event_log.next_entry,
437 iwl_print_cont_event_trace(
438 priv, base, 0, next_entry, capacity, mode);
440 iwl_print_cont_event_trace(
441 priv, base, next_entry,
442 capacity - next_entry,
445 iwl_print_cont_event_trace(
446 priv, base, 0, next_entry, capacity, mode);
450 priv->event_log.num_wraps = num_wraps;
451 priv->event_log.next_entry = next_entry;
455 * iwl_bg_ucode_trace - Timer callback to log ucode event
457 * The timer is continually set to execute every
458 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
459 * this function is to perform continuous uCode event logging operation
462 static void iwl_bg_ucode_trace(unsigned long data)
464 struct iwl_priv *priv = (struct iwl_priv *)data;
466 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
469 if (priv->event_log.ucode_trace) {
470 iwl_continuous_event_trace(priv);
471 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
472 mod_timer(&priv->ucode_trace,
473 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
477 static void iwl_bg_tx_flush(struct work_struct *work)
479 struct iwl_priv *priv =
480 container_of(work, struct iwl_priv, tx_flush);
482 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
485 /* do nothing if rf-kill is on */
486 if (!iwl_is_ready_rf(priv->shrd))
489 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
490 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
493 void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
498 * The default context is always valid,
499 * the PAN context depends on uCode.
501 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
502 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
503 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
505 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
506 priv->contexts[i].ctxid = i;
508 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
509 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
510 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
511 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
512 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
513 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
514 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
515 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
516 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
517 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
518 BIT(NL80211_IFTYPE_ADHOC);
519 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
520 BIT(NL80211_IFTYPE_STATION);
521 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
522 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
523 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
524 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
526 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
527 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
528 REPLY_WIPAN_RXON_TIMING;
529 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
530 REPLY_WIPAN_RXON_ASSOC;
531 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
532 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
533 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
534 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
535 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
536 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
537 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
539 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
540 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
541 BIT(NL80211_IFTYPE_P2P_CLIENT) |
542 BIT(NL80211_IFTYPE_P2P_GO);
544 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
545 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
546 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
548 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
551 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
553 struct iwl_ct_kill_config cmd;
554 struct iwl_ct_kill_throttling_config adv_cmd;
557 iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR,
558 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
560 priv->thermal_throttle.ct_kill_toggle = false;
562 if (cfg(priv)->base_params->support_ct_kill_exit) {
563 adv_cmd.critical_temperature_enter =
564 cpu_to_le32(hw_params(priv).ct_kill_threshold);
565 adv_cmd.critical_temperature_exit =
566 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
568 ret = iwl_trans_send_cmd_pdu(trans(priv),
569 REPLY_CT_KILL_CONFIG_CMD,
570 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
572 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
574 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
575 "succeeded, critical temperature enter is %d,"
577 hw_params(priv).ct_kill_threshold,
578 hw_params(priv).ct_kill_exit_threshold);
580 cmd.critical_temperature_R =
581 cpu_to_le32(hw_params(priv).ct_kill_threshold);
583 ret = iwl_trans_send_cmd_pdu(trans(priv),
584 REPLY_CT_KILL_CONFIG_CMD,
585 CMD_SYNC, sizeof(cmd), &cmd);
587 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
589 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
591 "critical temperature is %d\n",
592 hw_params(priv).ct_kill_threshold);
596 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
598 struct iwl_calib_cfg_cmd calib_cfg_cmd;
599 struct iwl_host_cmd cmd = {
600 .id = CALIBRATION_CFG_CMD,
601 .len = { sizeof(struct iwl_calib_cfg_cmd), },
602 .data = { &calib_cfg_cmd, },
605 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
606 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
607 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
609 return iwl_trans_send_cmd(trans(priv), &cmd);
613 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
615 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
616 .valid = cpu_to_le32(valid_tx_ant),
619 if (IWL_UCODE_API(nic(priv)->fw.ucode_ver) > 1) {
620 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
621 return iwl_trans_send_cmd_pdu(trans(priv),
622 TX_ANT_CONFIGURATION_CMD,
624 sizeof(struct iwl_tx_ant_config_cmd),
627 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
633 * iwl_alive_start - called after REPLY_ALIVE notification received
634 * from protocol/runtime uCode (initialization uCode's
635 * Alive gets handled by iwl_init_alive_start()).
637 int iwl_alive_start(struct iwl_priv *priv)
640 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
642 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
644 /* After the ALIVE response, we can send host commands to the uCode */
645 set_bit(STATUS_ALIVE, &priv->shrd->status);
647 /* Enable watchdog to monitor the driver tx queues */
648 iwl_setup_watchdog(priv);
650 if (iwl_is_rfkill(priv->shrd))
653 if (priv->event_log.ucode_trace) {
654 /* start collecting data now */
655 mod_timer(&priv->ucode_trace, jiffies);
658 /* download priority table before any calibration request */
659 if (cfg(priv)->bt_params &&
660 cfg(priv)->bt_params->advanced_bt_coexist) {
661 /* Configure Bluetooth device coexistence support */
662 if (cfg(priv)->bt_params->bt_sco_disable)
663 priv->bt_enable_pspoll = false;
665 priv->bt_enable_pspoll = true;
667 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
668 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
669 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
670 iwlagn_send_advance_bt_config(priv);
671 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
672 priv->cur_rssi_ctx = NULL;
674 iwl_send_prio_tbl(trans(priv));
676 /* FIXME: w/a to force change uCode BT state machine */
677 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_OPEN,
678 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
681 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_CLOSE,
682 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
687 * default is 2-wire BT coexexistence support
689 iwl_send_bt_config(priv);
693 * Perform runtime calibrations, including DC calibration.
695 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
697 ieee80211_wake_queues(priv->hw);
699 priv->active_rate = IWL_RATES_MASK;
701 /* Configure Tx antenna selection based on H/W config */
702 iwlagn_send_tx_ant_config(priv, cfg(priv)->valid_tx_ant);
704 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
705 struct iwl_rxon_cmd *active_rxon =
706 (struct iwl_rxon_cmd *)&ctx->active;
707 /* apply any changes in staging */
708 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
709 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
711 struct iwl_rxon_context *tmp;
712 /* Initialize our rx_config data */
713 for_each_context(priv, tmp)
714 iwl_connection_init_rx_config(priv, tmp);
716 iwlagn_set_rxon_chain(priv, ctx);
719 if (!priv->shrd->wowlan) {
720 /* WoWLAN ucode will not reply in the same way, skip it */
721 iwl_reset_run_time_calib(priv);
724 set_bit(STATUS_READY, &priv->shrd->status);
726 /* Configure the adapter for unassociated operation */
727 ret = iwlagn_commit_rxon(priv, ctx);
731 /* At this point, the NIC is initialized and operational */
732 iwl_rf_kill_ct_config(priv);
734 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
736 return iwl_power_update_mode(priv, true);
740 * iwl_clear_driver_stations - clear knowledge of all stations from driver
741 * @priv: iwl priv struct
743 * This is called during iwl_down() to make sure that in the case
744 * we're coming there from a hardware restart mac80211 will be
745 * able to reconfigure stations -- if we're getting there in the
746 * normal down flow then the stations will already be cleared.
748 static void iwl_clear_driver_stations(struct iwl_priv *priv)
750 struct iwl_rxon_context *ctx;
752 spin_lock_bh(&priv->sta_lock);
753 memset(priv->stations, 0, sizeof(priv->stations));
754 priv->num_stations = 0;
756 priv->ucode_key_table = 0;
758 for_each_context(priv, ctx) {
760 * Remove all key information that is not stored as part
761 * of station information since mac80211 may not have had
762 * a chance to remove all the keys. When device is
763 * reconfigured by mac80211 after an error all keys will
766 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
767 ctx->key_mapping_keys = 0;
770 spin_unlock_bh(&priv->sta_lock);
773 void iwl_down(struct iwl_priv *priv)
777 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
779 lockdep_assert_held(&priv->shrd->mutex);
781 iwl_scan_cancel_timeout(priv, 200);
784 * If active, scanning won't cancel it, so say it expired.
785 * No race since we hold the mutex here and a new one
786 * can't come in at this time.
788 ieee80211_remain_on_channel_expired(priv->hw);
791 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
793 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
794 * to prevent rearm timer */
795 del_timer_sync(&priv->watchdog);
797 iwl_clear_ucode_stations(priv, NULL);
798 iwl_dealloc_bcast_stations(priv);
799 iwl_clear_driver_stations(priv);
801 /* reset BT coex data */
803 priv->cur_rssi_ctx = NULL;
805 if (cfg(priv)->bt_params)
806 priv->bt_traffic_load =
807 cfg(priv)->bt_params->bt_init_traffic_load;
809 priv->bt_traffic_load = 0;
810 priv->bt_full_concurrent = false;
811 priv->bt_ci_compliance = 0;
813 /* Wipe out the EXIT_PENDING status bit if we are not actually
814 * exiting the module */
816 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
818 if (priv->mac80211_registered)
819 ieee80211_stop_queues(priv->hw);
821 iwl_trans_stop_device(trans(priv));
823 /* Clear out all status bits but a few that are stable across reset */
824 priv->shrd->status &=
825 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
827 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
828 STATUS_GEO_CONFIGURED |
829 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
831 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
834 dev_kfree_skb(priv->beacon_skb);
835 priv->beacon_skb = NULL;
838 /*****************************************************************************
840 * Workqueue callbacks
842 *****************************************************************************/
844 static void iwl_bg_run_time_calib_work(struct work_struct *work)
846 struct iwl_priv *priv = container_of(work, struct iwl_priv,
847 run_time_calib_work);
849 mutex_lock(&priv->shrd->mutex);
851 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
852 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
853 mutex_unlock(&priv->shrd->mutex);
857 if (priv->start_calib) {
858 iwl_chain_noise_calibration(priv);
859 iwl_sensitivity_calibration(priv);
862 mutex_unlock(&priv->shrd->mutex);
865 void iwlagn_prepare_restart(struct iwl_priv *priv)
867 struct iwl_rxon_context *ctx;
868 bool bt_full_concurrent;
874 lockdep_assert_held(&priv->shrd->mutex);
876 for_each_context(priv, ctx)
881 * __iwl_down() will clear the BT status variables,
882 * which is correct, but when we restart we really
883 * want to keep them so restore them afterwards.
885 * The restart process will later pick them up and
886 * re-configure the hw when we reconfigure the BT
889 bt_full_concurrent = priv->bt_full_concurrent;
890 bt_ci_compliance = priv->bt_ci_compliance;
891 bt_load = priv->bt_traffic_load;
892 bt_status = priv->bt_status;
893 bt_is_sco = priv->bt_is_sco;
897 priv->bt_full_concurrent = bt_full_concurrent;
898 priv->bt_ci_compliance = bt_ci_compliance;
899 priv->bt_traffic_load = bt_load;
900 priv->bt_status = bt_status;
901 priv->bt_is_sco = bt_is_sco;
904 static void iwl_bg_restart(struct work_struct *data)
906 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
908 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
911 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
912 mutex_lock(&priv->shrd->mutex);
913 iwlagn_prepare_restart(priv);
914 mutex_unlock(&priv->shrd->mutex);
915 iwl_cancel_deferred_work(priv);
916 ieee80211_restart_hw(priv->hw);
925 void iwlagn_disable_roc(struct iwl_priv *priv)
927 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
929 lockdep_assert_held(&priv->shrd->mutex);
931 if (!priv->hw_roc_setup)
934 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
935 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
937 priv->hw_roc_channel = NULL;
939 memset(ctx->staging.node_addr, 0, ETH_ALEN);
941 iwlagn_commit_rxon(priv, ctx);
943 ctx->is_active = false;
944 priv->hw_roc_setup = false;
947 static void iwlagn_disable_roc_work(struct work_struct *work)
949 struct iwl_priv *priv = container_of(work, struct iwl_priv,
950 hw_roc_disable_work.work);
952 mutex_lock(&priv->shrd->mutex);
953 iwlagn_disable_roc(priv);
954 mutex_unlock(&priv->shrd->mutex);
957 /*****************************************************************************
959 * driver setup and teardown
961 *****************************************************************************/
963 static void iwl_setup_deferred_work(struct iwl_priv *priv)
965 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
967 init_waitqueue_head(&priv->shrd->wait_command_queue);
969 INIT_WORK(&priv->restart, iwl_bg_restart);
970 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
971 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
972 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
973 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
974 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
975 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
976 iwlagn_disable_roc_work);
978 iwl_setup_scan_deferred_work(priv);
980 if (cfg(priv)->lib->bt_setup_deferred_work)
981 cfg(priv)->lib->bt_setup_deferred_work(priv);
983 init_timer(&priv->statistics_periodic);
984 priv->statistics_periodic.data = (unsigned long)priv;
985 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
987 init_timer(&priv->ucode_trace);
988 priv->ucode_trace.data = (unsigned long)priv;
989 priv->ucode_trace.function = iwl_bg_ucode_trace;
991 init_timer(&priv->watchdog);
992 priv->watchdog.data = (unsigned long)priv;
993 priv->watchdog.function = iwl_bg_watchdog;
996 void iwl_cancel_deferred_work(struct iwl_priv *priv)
998 if (cfg(priv)->lib->cancel_deferred_work)
999 cfg(priv)->lib->cancel_deferred_work(priv);
1001 cancel_work_sync(&priv->run_time_calib_work);
1002 cancel_work_sync(&priv->beacon_update);
1004 iwl_cancel_scan_deferred_work(priv);
1006 cancel_work_sync(&priv->bt_full_concurrency);
1007 cancel_work_sync(&priv->bt_runtime_config);
1008 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1010 del_timer_sync(&priv->statistics_periodic);
1011 del_timer_sync(&priv->ucode_trace);
1014 static void iwl_init_hw_rates(struct iwl_priv *priv,
1015 struct ieee80211_rate *rates)
1019 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
1020 rates[i].bitrate = iwl_rates[i].ieee * 5;
1021 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1022 rates[i].hw_value_short = i;
1024 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
1026 * If CCK != 1M then set short preamble rate flag.
1029 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
1030 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1035 static int iwl_init_drv(struct iwl_priv *priv)
1039 spin_lock_init(&priv->sta_lock);
1041 mutex_init(&priv->shrd->mutex);
1043 INIT_LIST_HEAD(&trans(priv)->calib_results);
1045 priv->ieee_channels = NULL;
1046 priv->ieee_rates = NULL;
1047 priv->band = IEEE80211_BAND_2GHZ;
1049 priv->iw_mode = NL80211_IFTYPE_STATION;
1050 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1051 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1052 priv->agg_tids_count = 0;
1054 /* initialize force reset */
1055 priv->force_reset[IWL_RF_RESET].reset_duration =
1056 IWL_DELAY_NEXT_FORCE_RF_RESET;
1057 priv->force_reset[IWL_FW_RESET].reset_duration =
1058 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
1060 priv->rx_statistics_jiffies = jiffies;
1062 /* Choose which receivers/antennas to use */
1063 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1065 iwl_init_scan_params(priv);
1068 if (cfg(priv)->bt_params &&
1069 cfg(priv)->bt_params->advanced_bt_coexist) {
1070 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1071 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1072 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1073 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1074 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1075 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1078 ret = iwl_init_channel_map(priv);
1080 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1084 ret = iwl_init_geos(priv);
1086 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1087 goto err_free_channel_map;
1089 iwl_init_hw_rates(priv, priv->ieee_rates);
1093 err_free_channel_map:
1094 iwl_free_channel_map(priv);
1099 static void iwl_uninit_drv(struct iwl_priv *priv)
1101 iwl_free_geos(priv);
1102 iwl_free_channel_map(priv);
1103 if (priv->tx_cmd_pool)
1104 kmem_cache_destroy(priv->tx_cmd_pool);
1105 kfree(priv->scan_cmd);
1106 kfree(priv->beacon_cmd);
1107 kfree(rcu_dereference_raw(priv->noa_data));
1108 #ifdef CONFIG_IWLWIFI_DEBUGFS
1109 kfree(priv->wowlan_sram);
1113 /* Size of one Rx buffer in host DRAM */
1114 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
1115 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
1117 static void iwl_set_hw_params(struct iwl_priv *priv)
1119 if (iwlagn_mod_params.amsdu_size_8K)
1120 hw_params(priv).rx_page_order =
1121 get_order(IWL_RX_BUF_SIZE_8K);
1123 hw_params(priv).rx_page_order =
1124 get_order(IWL_RX_BUF_SIZE_4K);
1126 if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
1127 hw_params(priv).sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
1129 hw_params(priv).num_ampdu_queues =
1130 cfg(priv)->base_params->num_of_ampdu_queues;
1131 hw_params(priv).shadow_reg_enable =
1132 cfg(priv)->base_params->shadow_reg_enable;
1133 hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout;
1135 /* Device-specific setup */
1136 cfg(priv)->lib->set_hw_params(priv);
1141 static void iwl_debug_config(struct iwl_priv *priv)
1143 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
1144 #ifdef CONFIG_IWLWIFI_DEBUG
1149 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
1150 #ifdef CONFIG_IWLWIFI_DEBUGFS
1155 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
1156 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1162 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1163 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1168 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
1169 #ifdef CONFIG_IWLWIFI_P2P
1176 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans)
1178 struct iwl_fw *fw = &nic(trans)->fw;
1180 struct iwl_priv *priv;
1181 struct ieee80211_hw *hw;
1182 struct iwl_op_mode *op_mode;
1186 /************************
1187 * 1. Allocating HW data
1188 ************************/
1189 hw = iwl_alloc_all();
1191 pr_err("%s: Cannot allocate network device\n",
1198 op_mode->ops = &iwl_dvm_ops;
1199 priv = IWL_OP_MODE_GET_DVM(op_mode);
1200 priv->shrd = trans->shrd;
1201 priv->shrd->priv = priv;
1203 iwl_trans_configure(trans(priv), op_mode);
1205 /* At this point both hw and priv are allocated. */
1207 SET_IEEE80211_DEV(priv->hw, trans(priv)->dev);
1209 /* show what debugging capabilities we have */
1210 iwl_debug_config(priv);
1212 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1214 /* is antenna coupling more than 35dB ? */
1215 priv->bt_ant_couple_ok =
1216 (iwlagn_mod_params.ant_coupling >
1217 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1220 /* enable/disable bt channel inhibition */
1221 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
1222 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1223 (priv->bt_ch_announce) ? "On" : "Off");
1225 if (iwl_alloc_traffic_mem(priv))
1226 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
1228 /* these spin locks will be used in apm_ops.init and EEPROM access
1229 * we should init now
1231 spin_lock_init(&trans(priv)->reg_lock);
1232 spin_lock_init(&priv->statistics.lock);
1234 /***********************
1235 * 3. Read REV register
1236 ***********************/
1237 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1238 cfg(priv)->name, trans(priv)->hw_rev);
1240 err = iwl_trans_start_hw(trans(priv));
1242 goto out_free_traffic_mem;
1247 /* Read the EEPROM */
1248 err = iwl_eeprom_init(trans(priv), trans(priv)->hw_rev);
1249 /* Reset chip to save power until we load uCode during "up". */
1250 iwl_trans_stop_hw(trans(priv));
1252 IWL_ERR(priv, "Unable to init EEPROM\n");
1253 goto out_free_traffic_mem;
1255 err = iwl_eeprom_check_version(priv);
1257 goto out_free_eeprom;
1259 err = iwl_eeprom_init_hw_params(priv);
1261 goto out_free_eeprom;
1263 /* extract MAC Address */
1264 iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr);
1265 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1266 priv->hw->wiphy->addresses = priv->addresses;
1267 priv->hw->wiphy->n_addresses = 1;
1268 num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS);
1270 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1272 priv->addresses[1].addr[5]++;
1273 priv->hw->wiphy->n_addresses++;
1276 /************************
1277 * 5. Setup HW constants
1278 ************************/
1279 iwl_set_hw_params(priv);
1281 ucode_flags = fw->ucode_capa.flags;
1283 #ifndef CONFIG_IWLWIFI_P2P
1284 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1286 if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1287 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1290 * if not PAN, then don't support P2P -- might be a uCode
1291 * packaging bug or due to the eeprom check above
1293 if (!(ucode_flags & IWL_UCODE_TLV_FLAGS_PAN))
1294 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1297 /*******************
1299 *******************/
1301 err = iwl_init_drv(priv);
1303 goto out_free_eeprom;
1304 /* At this point both hw and priv are initialized. */
1306 /********************
1308 ********************/
1309 iwl_setup_deferred_work(priv);
1310 iwl_setup_rx_handlers(priv);
1311 iwl_testmode_init(priv);
1313 iwl_power_initialize(priv);
1314 iwl_tt_initialize(priv);
1316 snprintf(priv->hw->wiphy->fw_version,
1317 sizeof(priv->hw->wiphy->fw_version),
1318 "%s", fw->fw_version);
1320 priv->new_scan_threshold_behaviour =
1321 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1323 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1324 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1325 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1327 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1328 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1331 priv->phy_calib_chain_noise_reset_cmd =
1332 fw->ucode_capa.standard_phy_calibration_size;
1333 priv->phy_calib_chain_noise_gain_cmd =
1334 fw->ucode_capa.standard_phy_calibration_size + 1;
1336 /* initialize all valid contexts */
1337 iwl_init_context(priv, ucode_flags);
1339 /**************************************************
1340 * This is still part of probe() in a sense...
1342 * 9. Setup and register with mac80211 and debugfs
1343 **************************************************/
1344 err = iwlagn_mac_setup_register(priv, &fw->ucode_capa);
1346 goto out_destroy_workqueue;
1348 err = iwl_dbgfs_register(priv, DRV_NAME);
1351 "failed to create debugfs files. Ignoring error: %d\n",
1356 out_destroy_workqueue:
1357 destroy_workqueue(priv->workqueue);
1358 priv->workqueue = NULL;
1359 iwl_uninit_drv(priv);
1361 iwl_eeprom_free(priv->shrd);
1362 out_free_traffic_mem:
1363 iwl_free_traffic_mem(priv);
1364 ieee80211_free_hw(priv->hw);
1370 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1372 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1374 wait_for_completion(&nic(priv)->request_firmware_complete);
1376 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1378 iwl_dbgfs_unregister(priv);
1380 iwl_testmode_cleanup(priv);
1381 iwlagn_mac_unregister(priv);
1385 /*This will stop the queues, move the device to low power state */
1386 iwl_trans_stop_device(trans(priv));
1388 iwl_dealloc_ucode(nic(priv));
1390 iwl_eeprom_free(priv->shrd);
1392 /*netif_stop_queue(dev); */
1393 flush_workqueue(priv->workqueue);
1395 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1396 * priv->workqueue... so we can't take down the workqueue
1398 destroy_workqueue(priv->workqueue);
1399 priv->workqueue = NULL;
1400 iwl_free_traffic_mem(priv);
1402 iwl_uninit_drv(priv);
1404 dev_kfree_skb(priv->beacon_skb);
1406 ieee80211_free_hw(priv->hw);
1409 const struct iwl_op_mode_ops iwl_dvm_ops = {
1410 .start = iwl_op_mode_dvm_start,
1411 .stop = iwl_op_mode_dvm_stop,
1412 .rx = iwl_rx_dispatch,
1413 .queue_full = iwl_stop_sw_queue,
1414 .queue_not_full = iwl_wake_sw_queue,
1415 .hw_rf_kill = iwl_set_hw_rfkill_state,
1416 .free_skb = iwl_free_skb,
1417 .nic_error = iwl_nic_error,
1420 /*****************************************************************************
1422 * driver and module entry point
1424 *****************************************************************************/
1425 static int __init iwl_init(void)
1429 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
1430 pr_info(DRV_COPYRIGHT "\n");
1432 ret = iwlagn_rate_control_register();
1434 pr_err("Unable to register rate control algorithm: %d\n", ret);
1438 ret = iwl_pci_register_driver();
1441 goto error_register;
1445 iwlagn_rate_control_unregister();
1449 static void __exit iwl_exit(void)
1451 iwl_pci_unregister_driver();
1452 iwlagn_rate_control_unregister();
1455 module_exit(iwl_exit);
1456 module_init(iwl_init);
1458 #ifdef CONFIG_IWLWIFI_DEBUG
1459 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
1461 MODULE_PARM_DESC(debug, "debug output mask");
1464 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
1465 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1466 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
1467 MODULE_PARM_DESC(queues_num, "number of hw queues.");
1468 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
1469 MODULE_PARM_DESC(11n_disable,
1470 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
1471 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
1473 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
1474 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
1475 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
1477 module_param_named(ucode_alternative,
1478 iwlagn_mod_params.wanted_ucode_alternative,
1480 MODULE_PARM_DESC(ucode_alternative,
1481 "specify ucode alternative to use from ucode file");
1483 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
1485 MODULE_PARM_DESC(antenna_coupling,
1486 "specify antenna coupling in dB (defualt: 0 dB)");
1488 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
1490 MODULE_PARM_DESC(bt_ch_inhibition,
1491 "Enable BT channel inhibition (default: enable)");
1493 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
1494 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
1496 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
1497 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
1499 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
1500 MODULE_PARM_DESC(wd_disable,
1501 "Disable stuck queue watchdog timer 0=system default, "
1502 "1=disable, 2=enable (default: 0)");
1505 * set bt_coex_active to true, uCode will do kill/defer
1506 * every time the priority line is asserted (BT is sending signals on the
1507 * priority line in the PCIx).
1508 * set bt_coex_active to false, uCode will ignore the BT activity and
1509 * perform the normal operation
1511 * User might experience transmit issue on some platform due to WiFi/BT
1512 * co-exist problem. The possible behaviors are:
1513 * Able to scan and finding all the available AP
1514 * Not able to associate with any AP
1515 * On those platforms, WiFi communication can be restored by set
1516 * "bt_coex_active" module parameter to "false"
1518 * default: bt_coex_active = true (BT_COEX_ENABLE)
1520 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
1522 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1524 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
1525 MODULE_PARM_DESC(led_mode, "0=system default, "
1526 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1528 module_param_named(power_save, iwlagn_mod_params.power_save,
1530 MODULE_PARM_DESC(power_save,
1531 "enable WiFi power management (default: disable)");
1533 module_param_named(power_level, iwlagn_mod_params.power_level,
1535 MODULE_PARM_DESC(power_level,
1536 "default power save level (range from 1 - 5, default: 1)");
1538 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
1540 MODULE_PARM_DESC(auto_agg,
1541 "enable agg w/o check traffic load (default: enable)");
1544 * For now, keep using power level 1 instead of automatically
1547 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
1549 MODULE_PARM_DESC(no_sleep_autoadjust,
1550 "don't automatically adjust sleep level "
1551 "according to maximum network latency (default: true)");