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"
54 #include "iwl-trans.h"
55 #include "iwl-op-mode.h"
57 /******************************************************************************
61 ******************************************************************************/
64 * module name, copyright, version, etc.
66 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
68 #ifdef CONFIG_IWLWIFI_DEBUG
74 #define DRV_VERSION IWLWIFI_VERSION VD
77 MODULE_DESCRIPTION(DRV_DESCRIPTION);
78 MODULE_VERSION(DRV_VERSION);
79 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
80 MODULE_LICENSE("GPL");
81 MODULE_ALIAS("iwlagn");
83 void iwl_update_chain_flags(struct iwl_priv *priv)
85 struct iwl_rxon_context *ctx;
87 for_each_context(priv, ctx) {
88 iwlagn_set_rxon_chain(priv, ctx);
89 if (ctx->active.rx_chain != ctx->staging.rx_chain)
90 iwlagn_commit_rxon(priv, ctx);
94 /* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
95 static void iwl_set_beacon_tim(struct iwl_priv *priv,
96 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
97 u8 *beacon, u32 frame_size)
100 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
103 * The index is relative to frame start but we start looking at the
104 * variable-length part of the beacon.
106 tim_idx = mgmt->u.beacon.variable - beacon;
108 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
109 while ((tim_idx < (frame_size - 2)) &&
110 (beacon[tim_idx] != WLAN_EID_TIM))
111 tim_idx += beacon[tim_idx+1] + 2;
113 /* If TIM field was found, set variables */
114 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
115 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
116 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
118 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
121 int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
123 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
124 struct iwl_host_cmd cmd = {
125 .id = REPLY_TX_BEACON,
128 struct ieee80211_tx_info *info;
134 * We have to set up the TX command, the TX Beacon command, and the
138 lockdep_assert_held(&priv->shrd->mutex);
140 if (!priv->beacon_ctx) {
141 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
145 if (WARN_ON(!priv->beacon_skb))
148 /* Allocate beacon command */
149 if (!priv->beacon_cmd)
150 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
151 tx_beacon_cmd = priv->beacon_cmd;
155 frame_size = priv->beacon_skb->len;
157 /* Set up TX command fields */
158 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
159 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
160 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
161 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
162 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
164 /* Set up TX beacon command fields */
165 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
168 /* Set up packet rate and flags */
169 info = IEEE80211_SKB_CB(priv->beacon_skb);
172 * Let's set up the rate at least somewhat correctly;
173 * it will currently not actually be used by the uCode,
174 * it uses the broadcast station's rate instead.
176 if (info->control.rates[0].idx < 0 ||
177 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
180 rate = info->control.rates[0].idx;
182 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
183 hw_params(priv).valid_tx_ant);
184 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
186 /* In mac80211, rates for 5 GHz start at 0 */
187 if (info->band == IEEE80211_BAND_5GHZ)
188 rate += IWL_FIRST_OFDM_RATE;
189 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
190 rate_flags |= RATE_MCS_CCK_MSK;
192 tx_beacon_cmd->tx.rate_n_flags =
193 iwl_hw_set_rate_n_flags(rate, rate_flags);
196 cmd.len[0] = sizeof(*tx_beacon_cmd);
197 cmd.data[0] = tx_beacon_cmd;
198 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
199 cmd.len[1] = frame_size;
200 cmd.data[1] = priv->beacon_skb->data;
201 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
203 return iwl_trans_send_cmd(trans(priv), &cmd);
206 static void iwl_bg_beacon_update(struct work_struct *work)
208 struct iwl_priv *priv =
209 container_of(work, struct iwl_priv, beacon_update);
210 struct sk_buff *beacon;
212 mutex_lock(&priv->shrd->mutex);
213 if (!priv->beacon_ctx) {
214 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
218 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
220 * The ucode will send beacon notifications even in
221 * IBSS mode, but we don't want to process them. But
222 * we need to defer the type check to here due to
223 * requiring locking around the beacon_ctx access.
228 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
229 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
231 IWL_ERR(priv, "update beacon failed -- keeping old\n");
235 /* new beacon skb is allocated every time; dispose previous.*/
236 dev_kfree_skb(priv->beacon_skb);
238 priv->beacon_skb = beacon;
240 iwlagn_send_beacon_cmd(priv);
242 mutex_unlock(&priv->shrd->mutex);
245 static void iwl_bg_bt_runtime_config(struct work_struct *work)
247 struct iwl_priv *priv =
248 container_of(work, struct iwl_priv, bt_runtime_config);
250 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
253 /* dont send host command if rf-kill is on */
254 if (!iwl_is_ready_rf(priv->shrd))
256 iwlagn_send_advance_bt_config(priv);
259 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
261 struct iwl_priv *priv =
262 container_of(work, struct iwl_priv, bt_full_concurrency);
263 struct iwl_rxon_context *ctx;
265 mutex_lock(&priv->shrd->mutex);
267 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
270 /* dont send host command if rf-kill is on */
271 if (!iwl_is_ready_rf(priv->shrd))
274 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
275 priv->bt_full_concurrent ?
276 "full concurrency" : "3-wire");
279 * LQ & RXON updated cmds must be sent before BT Config cmd
280 * to avoid 3-wire collisions
282 for_each_context(priv, ctx) {
283 iwlagn_set_rxon_chain(priv, ctx);
284 iwlagn_commit_rxon(priv, ctx);
287 iwlagn_send_advance_bt_config(priv);
289 mutex_unlock(&priv->shrd->mutex);
293 * iwl_bg_statistics_periodic - Timer callback to queue statistics
295 * This callback is provided in order to send a statistics request.
297 * This timer function is continually reset to execute within
298 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
299 * was received. We need to ensure we receive the statistics in order
300 * to update the temperature used for calibrating the TXPOWER.
302 static void iwl_bg_statistics_periodic(unsigned long data)
304 struct iwl_priv *priv = (struct iwl_priv *)data;
306 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
309 /* dont send host command if rf-kill is on */
310 if (!iwl_is_ready_rf(priv->shrd))
313 iwl_send_statistics_request(priv, CMD_ASYNC, false);
317 static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
318 u32 start_idx, u32 num_events,
319 u32 capacity, u32 mode)
322 u32 ptr; /* SRAM byte address of log data */
323 u32 ev, time, data; /* event log data */
324 unsigned long reg_flags;
327 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
329 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
331 /* Make sure device is powered up for SRAM reads */
332 spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
333 if (iwl_grab_nic_access(trans(priv))) {
334 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
338 /* Set starting address; reads will auto-increment */
339 iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
343 * Refuse to read more than would have fit into the log from
344 * the current start_idx. This used to happen due to the race
345 * described below, but now WARN because the code below should
346 * prevent it from happening here.
348 if (WARN_ON(num_events > capacity - start_idx))
349 num_events = capacity - start_idx;
352 * "time" is actually "data" for mode 0 (no timestamp).
353 * place event id # at far right for easier visual parsing.
355 for (i = 0; i < num_events; i++) {
356 ev = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
357 time = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
359 trace_iwlwifi_dev_ucode_cont_event(priv, 0, time, ev);
361 data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
362 trace_iwlwifi_dev_ucode_cont_event(priv, time,
366 /* Allow device to power down */
367 iwl_release_nic_access(trans(priv));
368 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
371 static void iwl_continuous_event_trace(struct iwl_priv *priv)
373 u32 capacity; /* event log capacity in # entries */
380 u32 base; /* SRAM byte address of event log header */
381 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
382 u32 num_wraps; /* # times uCode wrapped to top of log */
383 u32 next_entry; /* index of next entry to be written by uCode */
385 base = priv->shrd->device_pointers.log_event_table;
386 if (iwlagn_hw_valid_rtc_data_addr(base)) {
387 iwl_read_targ_mem_words(trans(priv), base, &read, sizeof(read));
389 capacity = read.capacity;
391 num_wraps = read.wrap_counter;
392 next_entry = read.write_counter;
397 * Unfortunately, the uCode doesn't use temporary variables.
398 * Therefore, it can happen that we read next_entry == capacity,
399 * which really means next_entry == 0.
401 if (unlikely(next_entry == capacity))
404 * Additionally, the uCode increases the write pointer before
405 * the wraps counter, so if the write pointer is smaller than
406 * the old write pointer (wrap occurred) but we read that no
407 * wrap occurred, we actually read between the next_entry and
408 * num_wraps update (this does happen in practice!!) -- take
409 * that into account by increasing num_wraps.
411 if (unlikely(next_entry < priv->event_log.next_entry &&
412 num_wraps == priv->event_log.num_wraps))
415 if (num_wraps == priv->event_log.num_wraps) {
416 iwl_print_cont_event_trace(
417 priv, base, priv->event_log.next_entry,
418 next_entry - priv->event_log.next_entry,
421 priv->event_log.non_wraps_count++;
423 if (num_wraps - priv->event_log.num_wraps > 1)
424 priv->event_log.wraps_more_count++;
426 priv->event_log.wraps_once_count++;
428 trace_iwlwifi_dev_ucode_wrap_event(priv,
429 num_wraps - priv->event_log.num_wraps,
430 next_entry, priv->event_log.next_entry);
432 if (next_entry < priv->event_log.next_entry) {
433 iwl_print_cont_event_trace(
434 priv, base, priv->event_log.next_entry,
435 capacity - priv->event_log.next_entry,
438 iwl_print_cont_event_trace(
439 priv, base, 0, next_entry, capacity, mode);
441 iwl_print_cont_event_trace(
442 priv, base, next_entry,
443 capacity - next_entry,
446 iwl_print_cont_event_trace(
447 priv, base, 0, next_entry, capacity, mode);
451 priv->event_log.num_wraps = num_wraps;
452 priv->event_log.next_entry = next_entry;
456 * iwl_bg_ucode_trace - Timer callback to log ucode event
458 * The timer is continually set to execute every
459 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
460 * this function is to perform continuous uCode event logging operation
463 static void iwl_bg_ucode_trace(unsigned long data)
465 struct iwl_priv *priv = (struct iwl_priv *)data;
467 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
470 if (priv->event_log.ucode_trace) {
471 iwl_continuous_event_trace(priv);
472 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
473 mod_timer(&priv->ucode_trace,
474 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
478 static void iwl_bg_tx_flush(struct work_struct *work)
480 struct iwl_priv *priv =
481 container_of(work, struct iwl_priv, tx_flush);
483 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
486 /* do nothing if rf-kill is on */
487 if (!iwl_is_ready_rf(priv->shrd))
490 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
491 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
494 void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
499 * The default context is always valid,
500 * the PAN context depends on uCode.
502 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
503 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
504 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
506 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
507 priv->contexts[i].ctxid = i;
509 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
510 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
511 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
512 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
513 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
514 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
515 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
516 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
517 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
518 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
519 BIT(NL80211_IFTYPE_ADHOC);
520 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
521 BIT(NL80211_IFTYPE_STATION);
522 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
523 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
524 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
525 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
527 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
528 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
529 REPLY_WIPAN_RXON_TIMING;
530 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
531 REPLY_WIPAN_RXON_ASSOC;
532 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
533 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
534 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
535 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
536 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
537 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
538 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
540 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
541 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
542 BIT(NL80211_IFTYPE_P2P_CLIENT) |
543 BIT(NL80211_IFTYPE_P2P_GO);
545 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
546 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
547 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
549 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
552 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
554 struct iwl_ct_kill_config cmd;
555 struct iwl_ct_kill_throttling_config adv_cmd;
559 spin_lock_irqsave(&priv->shrd->lock, flags);
560 iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR,
561 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
562 spin_unlock_irqrestore(&priv->shrd->lock, flags);
563 priv->thermal_throttle.ct_kill_toggle = false;
565 if (cfg(priv)->base_params->support_ct_kill_exit) {
566 adv_cmd.critical_temperature_enter =
567 cpu_to_le32(hw_params(priv).ct_kill_threshold);
568 adv_cmd.critical_temperature_exit =
569 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
571 ret = iwl_trans_send_cmd_pdu(trans(priv),
572 REPLY_CT_KILL_CONFIG_CMD,
573 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
575 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
577 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
578 "succeeded, critical temperature enter is %d,"
580 hw_params(priv).ct_kill_threshold,
581 hw_params(priv).ct_kill_exit_threshold);
583 cmd.critical_temperature_R =
584 cpu_to_le32(hw_params(priv).ct_kill_threshold);
586 ret = iwl_trans_send_cmd_pdu(trans(priv),
587 REPLY_CT_KILL_CONFIG_CMD,
588 CMD_SYNC, sizeof(cmd), &cmd);
590 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
592 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
594 "critical temperature is %d\n",
595 hw_params(priv).ct_kill_threshold);
599 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
601 struct iwl_calib_cfg_cmd calib_cfg_cmd;
602 struct iwl_host_cmd cmd = {
603 .id = CALIBRATION_CFG_CMD,
604 .len = { sizeof(struct iwl_calib_cfg_cmd), },
605 .data = { &calib_cfg_cmd, },
608 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
609 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
610 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
612 return iwl_trans_send_cmd(trans(priv), &cmd);
616 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
618 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
619 .valid = cpu_to_le32(valid_tx_ant),
622 if (IWL_UCODE_API(nic(priv)->fw.ucode_ver) > 1) {
623 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
624 return iwl_trans_send_cmd_pdu(trans(priv),
625 TX_ANT_CONFIGURATION_CMD,
627 sizeof(struct iwl_tx_ant_config_cmd),
630 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
636 * iwl_alive_start - called after REPLY_ALIVE notification received
637 * from protocol/runtime uCode (initialization uCode's
638 * Alive gets handled by iwl_init_alive_start()).
640 int iwl_alive_start(struct iwl_priv *priv)
643 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
645 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
647 /* After the ALIVE response, we can send host commands to the uCode */
648 set_bit(STATUS_ALIVE, &priv->shrd->status);
650 /* Enable watchdog to monitor the driver tx queues */
651 iwl_setup_watchdog(priv);
653 if (iwl_is_rfkill(priv->shrd))
656 if (priv->event_log.ucode_trace) {
657 /* start collecting data now */
658 mod_timer(&priv->ucode_trace, jiffies);
661 /* download priority table before any calibration request */
662 if (cfg(priv)->bt_params &&
663 cfg(priv)->bt_params->advanced_bt_coexist) {
664 /* Configure Bluetooth device coexistence support */
665 if (cfg(priv)->bt_params->bt_sco_disable)
666 priv->bt_enable_pspoll = false;
668 priv->bt_enable_pspoll = true;
670 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
671 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
672 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
673 iwlagn_send_advance_bt_config(priv);
674 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
675 priv->cur_rssi_ctx = NULL;
677 iwl_send_prio_tbl(trans(priv));
679 /* FIXME: w/a to force change uCode BT state machine */
680 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_OPEN,
681 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
684 ret = iwl_send_bt_env(trans(priv), IWL_BT_COEX_ENV_CLOSE,
685 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
690 * default is 2-wire BT coexexistence support
692 iwl_send_bt_config(priv);
696 * Perform runtime calibrations, including DC calibration.
698 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
700 ieee80211_wake_queues(priv->hw);
702 priv->active_rate = IWL_RATES_MASK;
704 /* Configure Tx antenna selection based on H/W config */
705 iwlagn_send_tx_ant_config(priv, cfg(priv)->valid_tx_ant);
707 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
708 struct iwl_rxon_cmd *active_rxon =
709 (struct iwl_rxon_cmd *)&ctx->active;
710 /* apply any changes in staging */
711 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
712 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
714 struct iwl_rxon_context *tmp;
715 /* Initialize our rx_config data */
716 for_each_context(priv, tmp)
717 iwl_connection_init_rx_config(priv, tmp);
719 iwlagn_set_rxon_chain(priv, ctx);
722 if (!priv->shrd->wowlan) {
723 /* WoWLAN ucode will not reply in the same way, skip it */
724 iwl_reset_run_time_calib(priv);
727 set_bit(STATUS_READY, &priv->shrd->status);
729 /* Configure the adapter for unassociated operation */
730 ret = iwlagn_commit_rxon(priv, ctx);
734 /* At this point, the NIC is initialized and operational */
735 iwl_rf_kill_ct_config(priv);
737 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
739 return iwl_power_update_mode(priv, true);
742 void iwl_down(struct iwl_priv *priv)
746 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
748 lockdep_assert_held(&priv->shrd->mutex);
750 iwl_scan_cancel_timeout(priv, 200);
753 * If active, scanning won't cancel it, so say it expired.
754 * No race since we hold the mutex here and a new one
755 * can't come in at this time.
757 ieee80211_remain_on_channel_expired(priv->hw);
760 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
762 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
763 * to prevent rearm timer */
764 del_timer_sync(&priv->watchdog);
766 iwl_clear_ucode_stations(priv, NULL);
767 iwl_dealloc_bcast_stations(priv);
768 iwl_clear_driver_stations(priv);
770 /* reset BT coex data */
772 priv->cur_rssi_ctx = NULL;
774 if (cfg(priv)->bt_params)
775 priv->bt_traffic_load =
776 cfg(priv)->bt_params->bt_init_traffic_load;
778 priv->bt_traffic_load = 0;
779 priv->bt_full_concurrent = false;
780 priv->bt_ci_compliance = 0;
782 /* Wipe out the EXIT_PENDING status bit if we are not actually
783 * exiting the module */
785 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
787 if (priv->mac80211_registered)
788 ieee80211_stop_queues(priv->hw);
790 iwl_trans_stop_device(trans(priv));
792 /* Clear out all status bits but a few that are stable across reset */
793 priv->shrd->status &=
794 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
796 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
797 STATUS_GEO_CONFIGURED |
798 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
800 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
803 dev_kfree_skb(priv->beacon_skb);
804 priv->beacon_skb = NULL;
807 /*****************************************************************************
809 * Workqueue callbacks
811 *****************************************************************************/
813 static void iwl_bg_run_time_calib_work(struct work_struct *work)
815 struct iwl_priv *priv = container_of(work, struct iwl_priv,
816 run_time_calib_work);
818 mutex_lock(&priv->shrd->mutex);
820 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
821 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
822 mutex_unlock(&priv->shrd->mutex);
826 if (priv->start_calib) {
827 iwl_chain_noise_calibration(priv);
828 iwl_sensitivity_calibration(priv);
831 mutex_unlock(&priv->shrd->mutex);
834 void iwlagn_prepare_restart(struct iwl_priv *priv)
836 struct iwl_rxon_context *ctx;
837 bool bt_full_concurrent;
843 lockdep_assert_held(&priv->shrd->mutex);
845 for_each_context(priv, ctx)
850 * __iwl_down() will clear the BT status variables,
851 * which is correct, but when we restart we really
852 * want to keep them so restore them afterwards.
854 * The restart process will later pick them up and
855 * re-configure the hw when we reconfigure the BT
858 bt_full_concurrent = priv->bt_full_concurrent;
859 bt_ci_compliance = priv->bt_ci_compliance;
860 bt_load = priv->bt_traffic_load;
861 bt_status = priv->bt_status;
862 bt_is_sco = priv->bt_is_sco;
866 priv->bt_full_concurrent = bt_full_concurrent;
867 priv->bt_ci_compliance = bt_ci_compliance;
868 priv->bt_traffic_load = bt_load;
869 priv->bt_status = bt_status;
870 priv->bt_is_sco = bt_is_sco;
873 static void iwl_bg_restart(struct work_struct *data)
875 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
877 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
880 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
881 mutex_lock(&priv->shrd->mutex);
882 iwlagn_prepare_restart(priv);
883 mutex_unlock(&priv->shrd->mutex);
884 iwl_cancel_deferred_work(priv);
885 ieee80211_restart_hw(priv->hw);
894 void iwlagn_disable_roc(struct iwl_priv *priv)
896 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
898 lockdep_assert_held(&priv->shrd->mutex);
900 if (!priv->hw_roc_setup)
903 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
904 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
906 priv->hw_roc_channel = NULL;
908 memset(ctx->staging.node_addr, 0, ETH_ALEN);
910 iwlagn_commit_rxon(priv, ctx);
912 ctx->is_active = false;
913 priv->hw_roc_setup = false;
916 static void iwlagn_disable_roc_work(struct work_struct *work)
918 struct iwl_priv *priv = container_of(work, struct iwl_priv,
919 hw_roc_disable_work.work);
921 mutex_lock(&priv->shrd->mutex);
922 iwlagn_disable_roc(priv);
923 mutex_unlock(&priv->shrd->mutex);
926 /*****************************************************************************
928 * driver setup and teardown
930 *****************************************************************************/
932 static void iwl_setup_deferred_work(struct iwl_priv *priv)
934 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
936 init_waitqueue_head(&priv->shrd->wait_command_queue);
938 INIT_WORK(&priv->restart, iwl_bg_restart);
939 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
940 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
941 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
942 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
943 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
944 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
945 iwlagn_disable_roc_work);
947 iwl_setup_scan_deferred_work(priv);
949 if (cfg(priv)->lib->bt_setup_deferred_work)
950 cfg(priv)->lib->bt_setup_deferred_work(priv);
952 init_timer(&priv->statistics_periodic);
953 priv->statistics_periodic.data = (unsigned long)priv;
954 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
956 init_timer(&priv->ucode_trace);
957 priv->ucode_trace.data = (unsigned long)priv;
958 priv->ucode_trace.function = iwl_bg_ucode_trace;
960 init_timer(&priv->watchdog);
961 priv->watchdog.data = (unsigned long)priv;
962 priv->watchdog.function = iwl_bg_watchdog;
965 void iwl_cancel_deferred_work(struct iwl_priv *priv)
967 if (cfg(priv)->lib->cancel_deferred_work)
968 cfg(priv)->lib->cancel_deferred_work(priv);
970 cancel_work_sync(&priv->run_time_calib_work);
971 cancel_work_sync(&priv->beacon_update);
973 iwl_cancel_scan_deferred_work(priv);
975 cancel_work_sync(&priv->bt_full_concurrency);
976 cancel_work_sync(&priv->bt_runtime_config);
977 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
979 del_timer_sync(&priv->statistics_periodic);
980 del_timer_sync(&priv->ucode_trace);
983 static void iwl_init_hw_rates(struct iwl_priv *priv,
984 struct ieee80211_rate *rates)
988 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
989 rates[i].bitrate = iwl_rates[i].ieee * 5;
990 rates[i].hw_value = i; /* Rate scaling will work on indexes */
991 rates[i].hw_value_short = i;
993 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
995 * If CCK != 1M then set short preamble rate flag.
998 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
999 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1004 static int iwl_init_drv(struct iwl_priv *priv)
1008 spin_lock_init(&priv->shrd->sta_lock);
1010 mutex_init(&priv->shrd->mutex);
1012 INIT_LIST_HEAD(&trans(priv)->calib_results);
1014 priv->ieee_channels = NULL;
1015 priv->ieee_rates = NULL;
1016 priv->band = IEEE80211_BAND_2GHZ;
1018 priv->iw_mode = NL80211_IFTYPE_STATION;
1019 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1020 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1021 priv->agg_tids_count = 0;
1023 /* initialize force reset */
1024 priv->force_reset[IWL_RF_RESET].reset_duration =
1025 IWL_DELAY_NEXT_FORCE_RF_RESET;
1026 priv->force_reset[IWL_FW_RESET].reset_duration =
1027 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
1029 priv->rx_statistics_jiffies = jiffies;
1031 /* Choose which receivers/antennas to use */
1032 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1034 iwl_init_scan_params(priv);
1037 if (cfg(priv)->bt_params &&
1038 cfg(priv)->bt_params->advanced_bt_coexist) {
1039 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1040 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1041 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1042 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1043 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1044 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1047 ret = iwl_init_channel_map(priv);
1049 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1053 ret = iwl_init_geos(priv);
1055 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1056 goto err_free_channel_map;
1058 iwl_init_hw_rates(priv, priv->ieee_rates);
1062 err_free_channel_map:
1063 iwl_free_channel_map(priv);
1068 static void iwl_uninit_drv(struct iwl_priv *priv)
1070 iwl_free_geos(priv);
1071 iwl_free_channel_map(priv);
1072 if (priv->tx_cmd_pool)
1073 kmem_cache_destroy(priv->tx_cmd_pool);
1074 kfree(priv->scan_cmd);
1075 kfree(priv->beacon_cmd);
1076 kfree(rcu_dereference_raw(priv->noa_data));
1077 #ifdef CONFIG_IWLWIFI_DEBUGFS
1078 kfree(priv->wowlan_sram);
1082 /* Size of one Rx buffer in host DRAM */
1083 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
1084 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
1086 static void iwl_set_hw_params(struct iwl_priv *priv)
1088 if (iwlagn_mod_params.amsdu_size_8K)
1089 hw_params(priv).rx_page_order =
1090 get_order(IWL_RX_BUF_SIZE_8K);
1092 hw_params(priv).rx_page_order =
1093 get_order(IWL_RX_BUF_SIZE_4K);
1095 if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
1096 cfg(priv)->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
1098 hw_params(priv).num_ampdu_queues =
1099 cfg(priv)->base_params->num_of_ampdu_queues;
1100 hw_params(priv).shadow_reg_enable =
1101 cfg(priv)->base_params->shadow_reg_enable;
1102 hw_params(priv).sku = cfg(priv)->sku;
1103 hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout;
1105 /* Device-specific setup */
1106 cfg(priv)->lib->set_hw_params(priv);
1111 static void iwl_debug_config(struct iwl_priv *priv)
1113 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
1114 #ifdef CONFIG_IWLWIFI_DEBUG
1119 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
1120 #ifdef CONFIG_IWLWIFI_DEBUGFS
1125 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
1126 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1132 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1133 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1138 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
1139 #ifdef CONFIG_IWLWIFI_P2P
1146 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans)
1148 struct iwl_fw *fw = &nic(trans)->fw;
1150 struct iwl_priv *priv;
1151 struct ieee80211_hw *hw;
1152 struct iwl_op_mode *op_mode;
1156 /************************
1157 * 1. Allocating HW data
1158 ************************/
1159 hw = iwl_alloc_all();
1161 pr_err("%s: Cannot allocate network device\n",
1168 op_mode->ops = &iwl_dvm_ops;
1169 priv = IWL_OP_MODE_GET_DVM(op_mode);
1170 priv->shrd = trans->shrd;
1171 priv->shrd->priv = priv;
1173 iwl_trans_configure(trans(priv), op_mode);
1175 /* At this point both hw and priv are allocated. */
1177 SET_IEEE80211_DEV(priv->hw, trans(priv)->dev);
1179 /* show what debugging capabilities we have */
1180 iwl_debug_config(priv);
1182 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1184 /* is antenna coupling more than 35dB ? */
1185 priv->bt_ant_couple_ok =
1186 (iwlagn_mod_params.ant_coupling >
1187 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1190 /* enable/disable bt channel inhibition */
1191 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
1192 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1193 (priv->bt_ch_announce) ? "On" : "Off");
1195 if (iwl_alloc_traffic_mem(priv))
1196 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
1198 /* these spin locks will be used in apm_ops.init and EEPROM access
1199 * we should init now
1201 spin_lock_init(&trans(priv)->reg_lock);
1202 spin_lock_init(&priv->shrd->lock);
1204 /***********************
1205 * 3. Read REV register
1206 ***********************/
1207 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1208 cfg(priv)->name, trans(priv)->hw_rev);
1210 err = iwl_trans_start_hw(trans(priv));
1212 goto out_free_traffic_mem;
1217 /* Read the EEPROM */
1218 err = iwl_eeprom_init(priv, trans(priv)->hw_rev);
1219 /* Reset chip to save power until we load uCode during "up". */
1220 iwl_trans_stop_hw(trans(priv));
1222 IWL_ERR(priv, "Unable to init EEPROM\n");
1223 goto out_free_traffic_mem;
1225 err = iwl_eeprom_check_version(priv);
1227 goto out_free_eeprom;
1229 err = iwl_eeprom_check_sku(priv);
1231 goto out_free_eeprom;
1233 /* extract MAC Address */
1234 iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr);
1235 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1236 priv->hw->wiphy->addresses = priv->addresses;
1237 priv->hw->wiphy->n_addresses = 1;
1238 num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS);
1240 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1242 priv->addresses[1].addr[5]++;
1243 priv->hw->wiphy->n_addresses++;
1246 /************************
1247 * 5. Setup HW constants
1248 ************************/
1249 iwl_set_hw_params(priv);
1251 ucode_flags = fw->ucode_capa.flags;
1253 #ifndef CONFIG_IWLWIFI_P2P
1254 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1256 if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1257 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1260 * if not PAN, then don't support P2P -- might be a uCode
1261 * packaging bug or due to the eeprom check above
1263 if (!(ucode_flags & IWL_UCODE_TLV_FLAGS_PAN))
1264 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1267 /*******************
1269 *******************/
1271 err = iwl_init_drv(priv);
1273 goto out_free_eeprom;
1274 /* At this point both hw and priv are initialized. */
1276 /********************
1278 ********************/
1279 iwl_setup_deferred_work(priv);
1280 iwl_setup_rx_handlers(priv);
1281 iwl_testmode_init(priv);
1283 iwl_power_initialize(priv);
1284 iwl_tt_initialize(priv);
1286 snprintf(priv->hw->wiphy->fw_version,
1287 sizeof(priv->hw->wiphy->fw_version),
1288 "%s", fw->fw_version);
1290 priv->new_scan_threshold_behaviour =
1291 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1293 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1294 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1295 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1297 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1298 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1301 priv->phy_calib_chain_noise_reset_cmd =
1302 fw->ucode_capa.standard_phy_calibration_size;
1303 priv->phy_calib_chain_noise_gain_cmd =
1304 fw->ucode_capa.standard_phy_calibration_size + 1;
1306 /* initialize all valid contexts */
1307 iwl_init_context(priv, ucode_flags);
1309 /**************************************************
1310 * This is still part of probe() in a sense...
1312 * 9. Setup and register with mac80211 and debugfs
1313 **************************************************/
1314 err = iwlagn_mac_setup_register(priv, &fw->ucode_capa);
1316 goto out_destroy_workqueue;
1318 err = iwl_dbgfs_register(priv, DRV_NAME);
1321 "failed to create debugfs files. Ignoring error: %d\n",
1326 out_destroy_workqueue:
1327 destroy_workqueue(priv->workqueue);
1328 priv->workqueue = NULL;
1329 iwl_uninit_drv(priv);
1331 iwl_eeprom_free(priv->shrd);
1332 out_free_traffic_mem:
1333 iwl_free_traffic_mem(priv);
1334 ieee80211_free_hw(priv->hw);
1340 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1342 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1344 wait_for_completion(&nic(priv)->request_firmware_complete);
1346 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1348 iwl_dbgfs_unregister(priv);
1350 /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
1351 * to be called and iwl_down since we are removing the device
1352 * we need to set STATUS_EXIT_PENDING bit.
1354 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1356 iwl_testmode_cleanup(priv);
1357 iwlagn_mac_unregister(priv);
1361 /*This will stop the queues, move the device to low power state */
1362 iwl_trans_stop_device(trans(priv));
1364 iwl_dealloc_ucode(nic(priv));
1366 iwl_eeprom_free(priv->shrd);
1368 /*netif_stop_queue(dev); */
1369 flush_workqueue(priv->workqueue);
1371 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1372 * priv->workqueue... so we can't take down the workqueue
1374 destroy_workqueue(priv->workqueue);
1375 priv->workqueue = NULL;
1376 iwl_free_traffic_mem(priv);
1378 iwl_uninit_drv(priv);
1380 dev_kfree_skb(priv->beacon_skb);
1382 ieee80211_free_hw(priv->hw);
1385 const struct iwl_op_mode_ops iwl_dvm_ops = {
1386 .start = iwl_op_mode_dvm_start,
1387 .stop = iwl_op_mode_dvm_stop,
1388 .free_skb = iwl_free_skb,
1391 /*****************************************************************************
1393 * driver and module entry point
1395 *****************************************************************************/
1396 static int __init iwl_init(void)
1400 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
1401 pr_info(DRV_COPYRIGHT "\n");
1403 ret = iwlagn_rate_control_register();
1405 pr_err("Unable to register rate control algorithm: %d\n", ret);
1409 ret = iwl_pci_register_driver();
1412 goto error_register;
1416 iwlagn_rate_control_unregister();
1420 static void __exit iwl_exit(void)
1422 iwl_pci_unregister_driver();
1423 iwlagn_rate_control_unregister();
1426 module_exit(iwl_exit);
1427 module_init(iwl_init);
1429 #ifdef CONFIG_IWLWIFI_DEBUG
1430 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
1432 MODULE_PARM_DESC(debug, "debug output mask");
1435 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
1436 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1437 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
1438 MODULE_PARM_DESC(queues_num, "number of hw queues.");
1439 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
1440 MODULE_PARM_DESC(11n_disable,
1441 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
1442 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
1444 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
1445 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
1446 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
1448 module_param_named(ucode_alternative,
1449 iwlagn_mod_params.wanted_ucode_alternative,
1451 MODULE_PARM_DESC(ucode_alternative,
1452 "specify ucode alternative to use from ucode file");
1454 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
1456 MODULE_PARM_DESC(antenna_coupling,
1457 "specify antenna coupling in dB (defualt: 0 dB)");
1459 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
1461 MODULE_PARM_DESC(bt_ch_inhibition,
1462 "Enable BT channel inhibition (default: enable)");
1464 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
1465 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
1467 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
1468 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
1470 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
1471 MODULE_PARM_DESC(wd_disable,
1472 "Disable stuck queue watchdog timer 0=system default, "
1473 "1=disable, 2=enable (default: 0)");
1476 * set bt_coex_active to true, uCode will do kill/defer
1477 * every time the priority line is asserted (BT is sending signals on the
1478 * priority line in the PCIx).
1479 * set bt_coex_active to false, uCode will ignore the BT activity and
1480 * perform the normal operation
1482 * User might experience transmit issue on some platform due to WiFi/BT
1483 * co-exist problem. The possible behaviors are:
1484 * Able to scan and finding all the available AP
1485 * Not able to associate with any AP
1486 * On those platforms, WiFi communication can be restored by set
1487 * "bt_coex_active" module parameter to "false"
1489 * default: bt_coex_active = true (BT_COEX_ENABLE)
1491 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
1493 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1495 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
1496 MODULE_PARM_DESC(led_mode, "0=system default, "
1497 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1499 module_param_named(power_save, iwlagn_mod_params.power_save,
1501 MODULE_PARM_DESC(power_save,
1502 "enable WiFi power management (default: disable)");
1504 module_param_named(power_level, iwlagn_mod_params.power_level,
1506 MODULE_PARM_DESC(power_level,
1507 "default power save level (range from 1 - 5, default: 1)");
1509 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
1511 MODULE_PARM_DESC(auto_agg,
1512 "enable agg w/o check traffic load (default: enable)");
1515 * For now, keep using power level 1 instead of automatically
1518 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
1520 MODULE_PARM_DESC(no_sleep_autoadjust,
1521 "don't automatically adjust sleep level "
1522 "according to maximum network latency (default: true)");