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Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2012 Intel Corporation. All rights reserved.
4 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
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.
11 *
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
15 * more details.
16 *
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
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29
30 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
31
32 #include <linux/kernel.h>
33 #include <linux/module.h>
34 #include <linux/init.h>
35 #include <linux/slab.h>
36 #include <linux/delay.h>
37 #include <linux/sched.h>
38 #include <linux/skbuff.h>
39 #include <linux/netdevice.h>
40 #include <linux/etherdevice.h>
41 #include <linux/if_arp.h>
42
43 #include <net/mac80211.h>
44
45 #include <asm/div64.h>
46
47 #include "iwl-eeprom.h"
48 #include "iwl-dev.h"
49 #include "iwl-core.h"
50 #include "iwl-io.h"
51 #include "iwl-agn-calib.h"
52 #include "iwl-agn.h"
53 #include "iwl-shared.h"
54 #include "iwl-trans.h"
55 #include "iwl-op-mode.h"
56
57 /******************************************************************************
58 *
59 * module boiler plate
60 *
61 ******************************************************************************/
62
63 /*
64 * module name, copyright, version, etc.
65 */
66 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
67
68 #ifdef CONFIG_IWLWIFI_DEBUG
69 #define VD "d"
70 #else
71 #define VD
72 #endif
73
74 #define DRV_VERSION IWLWIFI_VERSION VD
75
76
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");
82
83 void iwl_update_chain_flags(struct iwl_priv *priv)
84 {
85 struct iwl_rxon_context *ctx;
86
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);
91 }
92 }
93
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)
98 {
99 u16 tim_idx;
100 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
101
102 /*
103 * The index is relative to frame start but we start looking at the
104 * variable-length part of the beacon.
105 */
106 tim_idx = mgmt->u.beacon.variable - beacon;
107
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;
112
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];
117 } else
118 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
119 }
120
121 int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
122 {
123 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
124 struct iwl_host_cmd cmd = {
125 .id = REPLY_TX_BEACON,
126 .flags = CMD_SYNC,
127 };
128 struct ieee80211_tx_info *info;
129 u32 frame_size;
130 u32 rate_flags;
131 u32 rate;
132
133 /*
134 * We have to set up the TX command, the TX Beacon command, and the
135 * beacon contents.
136 */
137
138 lockdep_assert_held(&priv->mutex);
139
140 if (!priv->beacon_ctx) {
141 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
142 return 0;
143 }
144
145 if (WARN_ON(!priv->beacon_skb))
146 return -EINVAL;
147
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;
152 if (!tx_beacon_cmd)
153 return -ENOMEM;
154
155 frame_size = priv->beacon_skb->len;
156
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;
163
164 /* Set up TX beacon command fields */
165 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
166 frame_size);
167
168 /* Set up packet rate and flags */
169 info = IEEE80211_SKB_CB(priv->beacon_skb);
170
171 /*
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.
175 */
176 if (info->control.rates[0].idx < 0 ||
177 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
178 rate = 0;
179 else
180 rate = info->control.rates[0].idx;
181
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);
185
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;
191
192 tx_beacon_cmd->tx.rate_n_flags =
193 iwl_hw_set_rate_n_flags(rate, rate_flags);
194
195 /* Submit command */
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;
202
203 return iwl_dvm_send_cmd(priv, &cmd);
204 }
205
206 static void iwl_bg_beacon_update(struct work_struct *work)
207 {
208 struct iwl_priv *priv =
209 container_of(work, struct iwl_priv, beacon_update);
210 struct sk_buff *beacon;
211
212 mutex_lock(&priv->mutex);
213 if (!priv->beacon_ctx) {
214 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
215 goto out;
216 }
217
218 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
219 /*
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.
224 */
225 goto out;
226 }
227
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);
230 if (!beacon) {
231 IWL_ERR(priv, "update beacon failed -- keeping old\n");
232 goto out;
233 }
234
235 /* new beacon skb is allocated every time; dispose previous.*/
236 dev_kfree_skb(priv->beacon_skb);
237
238 priv->beacon_skb = beacon;
239
240 iwlagn_send_beacon_cmd(priv);
241 out:
242 mutex_unlock(&priv->mutex);
243 }
244
245 static void iwl_bg_bt_runtime_config(struct work_struct *work)
246 {
247 struct iwl_priv *priv =
248 container_of(work, struct iwl_priv, bt_runtime_config);
249
250 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
251 return;
252
253 /* dont send host command if rf-kill is on */
254 if (!iwl_is_ready_rf(priv))
255 return;
256 iwlagn_send_advance_bt_config(priv);
257 }
258
259 static void iwl_bg_bt_full_concurrency(struct work_struct *work)
260 {
261 struct iwl_priv *priv =
262 container_of(work, struct iwl_priv, bt_full_concurrency);
263 struct iwl_rxon_context *ctx;
264
265 mutex_lock(&priv->mutex);
266
267 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
268 goto out;
269
270 /* dont send host command if rf-kill is on */
271 if (!iwl_is_ready_rf(priv))
272 goto out;
273
274 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
275 priv->bt_full_concurrent ?
276 "full concurrency" : "3-wire");
277
278 /*
279 * LQ & RXON updated cmds must be sent before BT Config cmd
280 * to avoid 3-wire collisions
281 */
282 for_each_context(priv, ctx) {
283 iwlagn_set_rxon_chain(priv, ctx);
284 iwlagn_commit_rxon(priv, ctx);
285 }
286
287 iwlagn_send_advance_bt_config(priv);
288 out:
289 mutex_unlock(&priv->mutex);
290 }
291
292 /**
293 * iwl_bg_statistics_periodic - Timer callback to queue statistics
294 *
295 * This callback is provided in order to send a statistics request.
296 *
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.
301 */
302 static void iwl_bg_statistics_periodic(unsigned long data)
303 {
304 struct iwl_priv *priv = (struct iwl_priv *)data;
305
306 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
307 return;
308
309 /* dont send host command if rf-kill is on */
310 if (!iwl_is_ready_rf(priv))
311 return;
312
313 iwl_send_statistics_request(priv, CMD_ASYNC, false);
314 }
315
316
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)
320 {
321 u32 i;
322 u32 ptr; /* SRAM byte address of log data */
323 u32 ev, time, data; /* event log data */
324 unsigned long reg_flags;
325
326 if (mode == 0)
327 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
328 else
329 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
330
331 /* Make sure device is powered up for SRAM reads */
332 spin_lock_irqsave(&trans(priv)->reg_lock, reg_flags);
333 if (unlikely(!iwl_grab_nic_access(trans(priv)))) {
334 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
335 return;
336 }
337
338 /* Set starting address; reads will auto-increment */
339 iwl_write32(trans(priv), HBUS_TARG_MEM_RADDR, ptr);
340
341 /*
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.
346 */
347 if (WARN_ON(num_events > capacity - start_idx))
348 num_events = capacity - start_idx;
349
350 /*
351 * "time" is actually "data" for mode 0 (no timestamp).
352 * place event id # at far right for easier visual parsing.
353 */
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);
357 if (mode == 0) {
358 trace_iwlwifi_dev_ucode_cont_event(
359 trans(priv)->dev, 0, time, ev);
360 } else {
361 data = iwl_read32(trans(priv), HBUS_TARG_MEM_RDAT);
362 trace_iwlwifi_dev_ucode_cont_event(
363 trans(priv)->dev, time, data, ev);
364 }
365 }
366 /* Allow device to power down */
367 iwl_release_nic_access(trans(priv));
368 spin_unlock_irqrestore(&trans(priv)->reg_lock, reg_flags);
369 }
370
371 static void iwl_continuous_event_trace(struct iwl_priv *priv)
372 {
373 u32 capacity; /* event log capacity in # entries */
374 struct {
375 u32 capacity;
376 u32 mode;
377 u32 wrap_counter;
378 u32 write_counter;
379 } __packed read;
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 */
384
385 base = priv->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));
388
389 capacity = read.capacity;
390 mode = read.mode;
391 num_wraps = read.wrap_counter;
392 next_entry = read.write_counter;
393 } else
394 return;
395
396 /*
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.
400 */
401 if (unlikely(next_entry == capacity))
402 next_entry = 0;
403 /*
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.
410 */
411 if (unlikely(next_entry < priv->event_log.next_entry &&
412 num_wraps == priv->event_log.num_wraps))
413 num_wraps++;
414
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,
419 capacity, mode);
420
421 priv->event_log.non_wraps_count++;
422 } else {
423 if (num_wraps - priv->event_log.num_wraps > 1)
424 priv->event_log.wraps_more_count++;
425 else
426 priv->event_log.wraps_once_count++;
427
428 trace_iwlwifi_dev_ucode_wrap_event(trans(priv)->dev,
429 num_wraps - priv->event_log.num_wraps,
430 next_entry, priv->event_log.next_entry);
431
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,
436 capacity, mode);
437
438 iwl_print_cont_event_trace(
439 priv, base, 0, next_entry, capacity, mode);
440 } else {
441 iwl_print_cont_event_trace(
442 priv, base, next_entry,
443 capacity - next_entry,
444 capacity, mode);
445
446 iwl_print_cont_event_trace(
447 priv, base, 0, next_entry, capacity, mode);
448 }
449 }
450
451 priv->event_log.num_wraps = num_wraps;
452 priv->event_log.next_entry = next_entry;
453 }
454
455 /**
456 * iwl_bg_ucode_trace - Timer callback to log ucode event
457 *
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
461 * if enabled
462 */
463 static void iwl_bg_ucode_trace(unsigned long data)
464 {
465 struct iwl_priv *priv = (struct iwl_priv *)data;
466
467 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
468 return;
469
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));
475 }
476 }
477
478 static void iwl_bg_tx_flush(struct work_struct *work)
479 {
480 struct iwl_priv *priv =
481 container_of(work, struct iwl_priv, tx_flush);
482
483 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
484 return;
485
486 /* do nothing if rf-kill is on */
487 if (!iwl_is_ready_rf(priv))
488 return;
489
490 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
491 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
492 }
493
494 /*
495 * queue/FIFO/AC mapping definitions
496 */
497
498 #define IWL_TX_FIFO_BK 0 /* shared */
499 #define IWL_TX_FIFO_BE 1
500 #define IWL_TX_FIFO_VI 2 /* shared */
501 #define IWL_TX_FIFO_VO 3
502 #define IWL_TX_FIFO_BK_IPAN IWL_TX_FIFO_BK
503 #define IWL_TX_FIFO_BE_IPAN 4
504 #define IWL_TX_FIFO_VI_IPAN IWL_TX_FIFO_VI
505 #define IWL_TX_FIFO_VO_IPAN 5
506 /* re-uses the VO FIFO, uCode will properly flush/schedule */
507 #define IWL_TX_FIFO_AUX 5
508 #define IWL_TX_FIFO_UNUSED -1
509
510 #define IWLAGN_CMD_FIFO_NUM 7
511
512 /*
513 * This queue number is required for proper operation
514 * because the ucode will stop/start the scheduler as
515 * required.
516 */
517 #define IWL_IPAN_MCAST_QUEUE 8
518
519 static const u8 iwlagn_default_queue_to_tx_fifo[] = {
520 IWL_TX_FIFO_VO,
521 IWL_TX_FIFO_VI,
522 IWL_TX_FIFO_BE,
523 IWL_TX_FIFO_BK,
524 IWLAGN_CMD_FIFO_NUM,
525 };
526
527 static const u8 iwlagn_ipan_queue_to_tx_fifo[] = {
528 IWL_TX_FIFO_VO,
529 IWL_TX_FIFO_VI,
530 IWL_TX_FIFO_BE,
531 IWL_TX_FIFO_BK,
532 IWL_TX_FIFO_BK_IPAN,
533 IWL_TX_FIFO_BE_IPAN,
534 IWL_TX_FIFO_VI_IPAN,
535 IWL_TX_FIFO_VO_IPAN,
536 IWL_TX_FIFO_BE_IPAN,
537 IWLAGN_CMD_FIFO_NUM,
538 IWL_TX_FIFO_AUX,
539 };
540
541 static const u8 iwlagn_bss_ac_to_fifo[] = {
542 IWL_TX_FIFO_VO,
543 IWL_TX_FIFO_VI,
544 IWL_TX_FIFO_BE,
545 IWL_TX_FIFO_BK,
546 };
547
548 static const u8 iwlagn_bss_ac_to_queue[] = {
549 0, 1, 2, 3,
550 };
551
552 static const u8 iwlagn_pan_ac_to_fifo[] = {
553 IWL_TX_FIFO_VO_IPAN,
554 IWL_TX_FIFO_VI_IPAN,
555 IWL_TX_FIFO_BE_IPAN,
556 IWL_TX_FIFO_BK_IPAN,
557 };
558
559 static const u8 iwlagn_pan_ac_to_queue[] = {
560 7, 6, 5, 4,
561 };
562
563 static const u8 iwlagn_bss_queue_to_ac[] = {
564 IEEE80211_AC_VO,
565 IEEE80211_AC_VI,
566 IEEE80211_AC_BE,
567 IEEE80211_AC_BK,
568 };
569
570 static const u8 iwlagn_pan_queue_to_ac[] = {
571 IEEE80211_AC_VO,
572 IEEE80211_AC_VI,
573 IEEE80211_AC_BE,
574 IEEE80211_AC_BK,
575 IEEE80211_AC_BK,
576 IEEE80211_AC_BE,
577 IEEE80211_AC_VI,
578 IEEE80211_AC_VO,
579 };
580
581 static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
582 {
583 int i;
584
585 /*
586 * The default context is always valid,
587 * the PAN context depends on uCode.
588 */
589 priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
590 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
591 priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
592
593 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
594 priv->contexts[i].ctxid = i;
595
596 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
597 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
598 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
599 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
600 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
601 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
602 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
603 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
604 priv->contexts[IWL_RXON_CTX_BSS].bcast_sta_id = IWLAGN_BROADCAST_ID;
605 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
606 BIT(NL80211_IFTYPE_ADHOC);
607 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
608 BIT(NL80211_IFTYPE_STATION);
609 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
610 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
611 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
612 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
613 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue,
614 iwlagn_bss_ac_to_queue, sizeof(iwlagn_bss_ac_to_queue));
615 memcpy(priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo,
616 iwlagn_bss_ac_to_fifo, sizeof(iwlagn_bss_ac_to_fifo));
617
618 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
619 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
620 REPLY_WIPAN_RXON_TIMING;
621 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
622 REPLY_WIPAN_RXON_ASSOC;
623 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
624 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
625 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
626 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
627 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
628 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
629 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
630
631 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
632 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
633 BIT(NL80211_IFTYPE_P2P_CLIENT) |
634 BIT(NL80211_IFTYPE_P2P_GO);
635
636 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
637 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
638 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
639 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue,
640 iwlagn_pan_ac_to_queue, sizeof(iwlagn_pan_ac_to_queue));
641 memcpy(priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo,
642 iwlagn_pan_ac_to_fifo, sizeof(iwlagn_pan_ac_to_fifo));
643 priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
644
645 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
646 }
647
648 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
649 {
650 struct iwl_ct_kill_config cmd;
651 struct iwl_ct_kill_throttling_config adv_cmd;
652 int ret = 0;
653
654 iwl_write32(trans(priv), CSR_UCODE_DRV_GP1_CLR,
655 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
656
657 priv->thermal_throttle.ct_kill_toggle = false;
658
659 if (cfg(priv)->base_params->support_ct_kill_exit) {
660 adv_cmd.critical_temperature_enter =
661 cpu_to_le32(hw_params(priv).ct_kill_threshold);
662 adv_cmd.critical_temperature_exit =
663 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
664
665 ret = iwl_dvm_send_cmd_pdu(priv,
666 REPLY_CT_KILL_CONFIG_CMD,
667 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
668 if (ret)
669 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
670 else
671 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
672 "succeeded, critical temperature enter is %d,"
673 "exit is %d\n",
674 hw_params(priv).ct_kill_threshold,
675 hw_params(priv).ct_kill_exit_threshold);
676 } else {
677 cmd.critical_temperature_R =
678 cpu_to_le32(hw_params(priv).ct_kill_threshold);
679
680 ret = iwl_dvm_send_cmd_pdu(priv,
681 REPLY_CT_KILL_CONFIG_CMD,
682 CMD_SYNC, sizeof(cmd), &cmd);
683 if (ret)
684 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
685 else
686 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
687 "succeeded, "
688 "critical temperature is %d\n",
689 hw_params(priv).ct_kill_threshold);
690 }
691 }
692
693 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
694 {
695 struct iwl_calib_cfg_cmd calib_cfg_cmd;
696 struct iwl_host_cmd cmd = {
697 .id = CALIBRATION_CFG_CMD,
698 .len = { sizeof(struct iwl_calib_cfg_cmd), },
699 .data = { &calib_cfg_cmd, },
700 };
701
702 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
703 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
704 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
705
706 return iwl_dvm_send_cmd(priv, &cmd);
707 }
708
709
710 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
711 {
712 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
713 .valid = cpu_to_le32(valid_tx_ant),
714 };
715
716 if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) {
717 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
718 return iwl_dvm_send_cmd_pdu(priv,
719 TX_ANT_CONFIGURATION_CMD,
720 CMD_SYNC,
721 sizeof(struct iwl_tx_ant_config_cmd),
722 &tx_ant_cmd);
723 } else {
724 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
725 return -EOPNOTSUPP;
726 }
727 }
728
729 /**
730 * iwl_alive_start - called after REPLY_ALIVE notification received
731 * from protocol/runtime uCode (initialization uCode's
732 * Alive gets handled by iwl_init_alive_start()).
733 */
734 int iwl_alive_start(struct iwl_priv *priv)
735 {
736 int ret = 0;
737 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
738
739 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
740
741 /* After the ALIVE response, we can send host commands to the uCode */
742 set_bit(STATUS_ALIVE, &priv->status);
743
744 /* Enable watchdog to monitor the driver tx queues */
745 iwl_setup_watchdog(priv);
746
747 if (iwl_is_rfkill(priv))
748 return -ERFKILL;
749
750 if (priv->event_log.ucode_trace) {
751 /* start collecting data now */
752 mod_timer(&priv->ucode_trace, jiffies);
753 }
754
755 /* download priority table before any calibration request */
756 if (cfg(priv)->bt_params &&
757 cfg(priv)->bt_params->advanced_bt_coexist) {
758 /* Configure Bluetooth device coexistence support */
759 if (cfg(priv)->bt_params->bt_sco_disable)
760 priv->bt_enable_pspoll = false;
761 else
762 priv->bt_enable_pspoll = true;
763
764 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
765 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
766 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
767 iwlagn_send_advance_bt_config(priv);
768 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
769 priv->cur_rssi_ctx = NULL;
770
771 iwl_send_prio_tbl(priv);
772
773 /* FIXME: w/a to force change uCode BT state machine */
774 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
775 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
776 if (ret)
777 return ret;
778 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
779 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
780 if (ret)
781 return ret;
782 } else {
783 /*
784 * default is 2-wire BT coexexistence support
785 */
786 iwl_send_bt_config(priv);
787 }
788
789 /*
790 * Perform runtime calibrations, including DC calibration.
791 */
792 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
793
794 ieee80211_wake_queues(priv->hw);
795
796 priv->active_rate = IWL_RATES_MASK;
797
798 /* Configure Tx antenna selection based on H/W config */
799 iwlagn_send_tx_ant_config(priv, hw_params(priv).valid_tx_ant);
800
801 if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
802 struct iwl_rxon_cmd *active_rxon =
803 (struct iwl_rxon_cmd *)&ctx->active;
804 /* apply any changes in staging */
805 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
806 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
807 } else {
808 struct iwl_rxon_context *tmp;
809 /* Initialize our rx_config data */
810 for_each_context(priv, tmp)
811 iwl_connection_init_rx_config(priv, tmp);
812
813 iwlagn_set_rxon_chain(priv, ctx);
814 }
815
816 if (!priv->wowlan) {
817 /* WoWLAN ucode will not reply in the same way, skip it */
818 iwl_reset_run_time_calib(priv);
819 }
820
821 set_bit(STATUS_READY, &priv->status);
822
823 /* Configure the adapter for unassociated operation */
824 ret = iwlagn_commit_rxon(priv, ctx);
825 if (ret)
826 return ret;
827
828 /* At this point, the NIC is initialized and operational */
829 iwl_rf_kill_ct_config(priv);
830
831 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
832
833 return iwl_power_update_mode(priv, true);
834 }
835
836 /**
837 * iwl_clear_driver_stations - clear knowledge of all stations from driver
838 * @priv: iwl priv struct
839 *
840 * This is called during iwl_down() to make sure that in the case
841 * we're coming there from a hardware restart mac80211 will be
842 * able to reconfigure stations -- if we're getting there in the
843 * normal down flow then the stations will already be cleared.
844 */
845 static void iwl_clear_driver_stations(struct iwl_priv *priv)
846 {
847 struct iwl_rxon_context *ctx;
848
849 spin_lock_bh(&priv->sta_lock);
850 memset(priv->stations, 0, sizeof(priv->stations));
851 priv->num_stations = 0;
852
853 priv->ucode_key_table = 0;
854
855 for_each_context(priv, ctx) {
856 /*
857 * Remove all key information that is not stored as part
858 * of station information since mac80211 may not have had
859 * a chance to remove all the keys. When device is
860 * reconfigured by mac80211 after an error all keys will
861 * be reconfigured.
862 */
863 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
864 ctx->key_mapping_keys = 0;
865 }
866
867 spin_unlock_bh(&priv->sta_lock);
868 }
869
870 void iwl_down(struct iwl_priv *priv)
871 {
872 int exit_pending;
873
874 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
875
876 lockdep_assert_held(&priv->mutex);
877
878 iwl_scan_cancel_timeout(priv, 200);
879
880 /*
881 * If active, scanning won't cancel it, so say it expired.
882 * No race since we hold the mutex here and a new one
883 * can't come in at this time.
884 */
885 ieee80211_remain_on_channel_expired(priv->hw);
886
887 exit_pending =
888 test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
889
890 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
891 * to prevent rearm timer */
892 del_timer_sync(&priv->watchdog);
893
894 iwl_clear_ucode_stations(priv, NULL);
895 iwl_dealloc_bcast_stations(priv);
896 iwl_clear_driver_stations(priv);
897
898 /* reset BT coex data */
899 priv->bt_status = 0;
900 priv->cur_rssi_ctx = NULL;
901 priv->bt_is_sco = 0;
902 if (cfg(priv)->bt_params)
903 priv->bt_traffic_load =
904 cfg(priv)->bt_params->bt_init_traffic_load;
905 else
906 priv->bt_traffic_load = 0;
907 priv->bt_full_concurrent = false;
908 priv->bt_ci_compliance = 0;
909
910 /* Wipe out the EXIT_PENDING status bit if we are not actually
911 * exiting the module */
912 if (!exit_pending)
913 clear_bit(STATUS_EXIT_PENDING, &priv->status);
914
915 if (priv->mac80211_registered)
916 ieee80211_stop_queues(priv->hw);
917
918 priv->ucode_loaded = false;
919 iwl_trans_stop_device(trans(priv));
920
921 /* Clear out all status bits but a few that are stable across reset */
922 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
923 STATUS_RF_KILL_HW |
924 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
925 STATUS_GEO_CONFIGURED |
926 test_bit(STATUS_FW_ERROR, &priv->status) <<
927 STATUS_FW_ERROR |
928 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
929 STATUS_EXIT_PENDING;
930
931 dev_kfree_skb(priv->beacon_skb);
932 priv->beacon_skb = NULL;
933 }
934
935 /*****************************************************************************
936 *
937 * Workqueue callbacks
938 *
939 *****************************************************************************/
940
941 static void iwl_bg_run_time_calib_work(struct work_struct *work)
942 {
943 struct iwl_priv *priv = container_of(work, struct iwl_priv,
944 run_time_calib_work);
945
946 mutex_lock(&priv->mutex);
947
948 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
949 test_bit(STATUS_SCANNING, &priv->status)) {
950 mutex_unlock(&priv->mutex);
951 return;
952 }
953
954 if (priv->start_calib) {
955 iwl_chain_noise_calibration(priv);
956 iwl_sensitivity_calibration(priv);
957 }
958
959 mutex_unlock(&priv->mutex);
960 }
961
962 void iwlagn_prepare_restart(struct iwl_priv *priv)
963 {
964 struct iwl_rxon_context *ctx;
965 bool bt_full_concurrent;
966 u8 bt_ci_compliance;
967 u8 bt_load;
968 u8 bt_status;
969 bool bt_is_sco;
970 int i;
971
972 lockdep_assert_held(&priv->mutex);
973
974 for_each_context(priv, ctx)
975 ctx->vif = NULL;
976 priv->is_open = 0;
977
978 /*
979 * __iwl_down() will clear the BT status variables,
980 * which is correct, but when we restart we really
981 * want to keep them so restore them afterwards.
982 *
983 * The restart process will later pick them up and
984 * re-configure the hw when we reconfigure the BT
985 * command.
986 */
987 bt_full_concurrent = priv->bt_full_concurrent;
988 bt_ci_compliance = priv->bt_ci_compliance;
989 bt_load = priv->bt_traffic_load;
990 bt_status = priv->bt_status;
991 bt_is_sco = priv->bt_is_sco;
992
993 iwl_down(priv);
994
995 priv->bt_full_concurrent = bt_full_concurrent;
996 priv->bt_ci_compliance = bt_ci_compliance;
997 priv->bt_traffic_load = bt_load;
998 priv->bt_status = bt_status;
999 priv->bt_is_sco = bt_is_sco;
1000
1001 /* reset all queues */
1002 for (i = 0; i < IEEE80211_NUM_ACS; i++)
1003 atomic_set(&priv->ac_stop_count[i], 0);
1004
1005 for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++)
1006 priv->queue_to_ac[i] = IWL_INVALID_AC;
1007
1008 memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc));
1009 }
1010
1011 static void iwl_bg_restart(struct work_struct *data)
1012 {
1013 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1014
1015 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1016 return;
1017
1018 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
1019 mutex_lock(&priv->mutex);
1020 iwlagn_prepare_restart(priv);
1021 mutex_unlock(&priv->mutex);
1022 iwl_cancel_deferred_work(priv);
1023 ieee80211_restart_hw(priv->hw);
1024 } else {
1025 WARN_ON(1);
1026 }
1027 }
1028
1029
1030
1031
1032 void iwlagn_disable_roc(struct iwl_priv *priv)
1033 {
1034 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1035
1036 lockdep_assert_held(&priv->mutex);
1037
1038 if (!priv->hw_roc_setup)
1039 return;
1040
1041 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1042 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1043
1044 priv->hw_roc_channel = NULL;
1045
1046 memset(ctx->staging.node_addr, 0, ETH_ALEN);
1047
1048 iwlagn_commit_rxon(priv, ctx);
1049
1050 ctx->is_active = false;
1051 priv->hw_roc_setup = false;
1052 }
1053
1054 static void iwlagn_disable_roc_work(struct work_struct *work)
1055 {
1056 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1057 hw_roc_disable_work.work);
1058
1059 mutex_lock(&priv->mutex);
1060 iwlagn_disable_roc(priv);
1061 mutex_unlock(&priv->mutex);
1062 }
1063
1064 /*****************************************************************************
1065 *
1066 * driver setup and teardown
1067 *
1068 *****************************************************************************/
1069
1070 static void iwl_setup_deferred_work(struct iwl_priv *priv)
1071 {
1072 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
1073
1074 INIT_WORK(&priv->restart, iwl_bg_restart);
1075 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
1076 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
1077 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
1078 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
1079 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
1080 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
1081 iwlagn_disable_roc_work);
1082
1083 iwl_setup_scan_deferred_work(priv);
1084
1085 if (cfg(priv)->bt_params)
1086 iwlagn_bt_setup_deferred_work(priv);
1087
1088 init_timer(&priv->statistics_periodic);
1089 priv->statistics_periodic.data = (unsigned long)priv;
1090 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
1091
1092 init_timer(&priv->ucode_trace);
1093 priv->ucode_trace.data = (unsigned long)priv;
1094 priv->ucode_trace.function = iwl_bg_ucode_trace;
1095
1096 init_timer(&priv->watchdog);
1097 priv->watchdog.data = (unsigned long)priv;
1098 priv->watchdog.function = iwl_bg_watchdog;
1099 }
1100
1101 void iwl_cancel_deferred_work(struct iwl_priv *priv)
1102 {
1103 if (cfg(priv)->bt_params)
1104 iwlagn_bt_cancel_deferred_work(priv);
1105
1106 cancel_work_sync(&priv->run_time_calib_work);
1107 cancel_work_sync(&priv->beacon_update);
1108
1109 iwl_cancel_scan_deferred_work(priv);
1110
1111 cancel_work_sync(&priv->bt_full_concurrency);
1112 cancel_work_sync(&priv->bt_runtime_config);
1113 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1114
1115 del_timer_sync(&priv->statistics_periodic);
1116 del_timer_sync(&priv->ucode_trace);
1117 }
1118
1119 static void iwl_init_hw_rates(struct ieee80211_rate *rates)
1120 {
1121 int i;
1122
1123 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
1124 rates[i].bitrate = iwl_rates[i].ieee * 5;
1125 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1126 rates[i].hw_value_short = i;
1127 rates[i].flags = 0;
1128 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
1129 /*
1130 * If CCK != 1M then set short preamble rate flag.
1131 */
1132 rates[i].flags |=
1133 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
1134 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1135 }
1136 }
1137 }
1138
1139 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
1140 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
1141 static void iwl_init_ht_hw_capab(const struct iwl_priv *priv,
1142 struct ieee80211_sta_ht_cap *ht_info,
1143 enum ieee80211_band band)
1144 {
1145 u16 max_bit_rate = 0;
1146 u8 rx_chains_num = hw_params(priv).rx_chains_num;
1147 u8 tx_chains_num = hw_params(priv).tx_chains_num;
1148
1149 ht_info->cap = 0;
1150 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1151
1152 ht_info->ht_supported = true;
1153
1154 if (cfg(priv)->ht_params &&
1155 cfg(priv)->ht_params->ht_greenfield_support)
1156 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1157 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1158 max_bit_rate = MAX_BIT_RATE_20_MHZ;
1159 if (hw_params(priv).ht40_channel & BIT(band)) {
1160 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1161 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1162 ht_info->mcs.rx_mask[4] = 0x01;
1163 max_bit_rate = MAX_BIT_RATE_40_MHZ;
1164 }
1165
1166 if (iwlagn_mod_params.amsdu_size_8K)
1167 ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
1168
1169 ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
1170 ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
1171
1172 ht_info->mcs.rx_mask[0] = 0xFF;
1173 if (rx_chains_num >= 2)
1174 ht_info->mcs.rx_mask[1] = 0xFF;
1175 if (rx_chains_num >= 3)
1176 ht_info->mcs.rx_mask[2] = 0xFF;
1177
1178 /* Highest supported Rx data rate */
1179 max_bit_rate *= rx_chains_num;
1180 WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
1181 ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
1182
1183 /* Tx MCS capabilities */
1184 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1185 if (tx_chains_num != rx_chains_num) {
1186 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
1187 ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
1188 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
1189 }
1190 }
1191
1192 /**
1193 * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
1194 */
1195 static int iwl_init_geos(struct iwl_priv *priv)
1196 {
1197 struct iwl_channel_info *ch;
1198 struct ieee80211_supported_band *sband;
1199 struct ieee80211_channel *channels;
1200 struct ieee80211_channel *geo_ch;
1201 struct ieee80211_rate *rates;
1202 int i = 0;
1203 s8 max_tx_power = IWLAGN_TX_POWER_TARGET_POWER_MIN;
1204
1205 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
1206 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
1207 IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
1208 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
1209 return 0;
1210 }
1211
1212 channels = kcalloc(priv->channel_count,
1213 sizeof(struct ieee80211_channel), GFP_KERNEL);
1214 if (!channels)
1215 return -ENOMEM;
1216
1217 rates = kcalloc(IWL_RATE_COUNT_LEGACY, sizeof(struct ieee80211_rate),
1218 GFP_KERNEL);
1219 if (!rates) {
1220 kfree(channels);
1221 return -ENOMEM;
1222 }
1223
1224 /* 5.2GHz channels start after the 2.4GHz channels */
1225 sband = &priv->bands[IEEE80211_BAND_5GHZ];
1226 sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
1227 /* just OFDM */
1228 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
1229 sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
1230
1231 if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE)
1232 iwl_init_ht_hw_capab(priv, &sband->ht_cap,
1233 IEEE80211_BAND_5GHZ);
1234
1235 sband = &priv->bands[IEEE80211_BAND_2GHZ];
1236 sband->channels = channels;
1237 /* OFDM & CCK */
1238 sband->bitrates = rates;
1239 sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
1240
1241 if (hw_params(priv).sku & EEPROM_SKU_CAP_11N_ENABLE)
1242 iwl_init_ht_hw_capab(priv, &sband->ht_cap,
1243 IEEE80211_BAND_2GHZ);
1244
1245 priv->ieee_channels = channels;
1246 priv->ieee_rates = rates;
1247
1248 for (i = 0; i < priv->channel_count; i++) {
1249 ch = &priv->channel_info[i];
1250
1251 /* FIXME: might be removed if scan is OK */
1252 if (!is_channel_valid(ch))
1253 continue;
1254
1255 sband = &priv->bands[ch->band];
1256
1257 geo_ch = &sband->channels[sband->n_channels++];
1258
1259 geo_ch->center_freq =
1260 ieee80211_channel_to_frequency(ch->channel, ch->band);
1261 geo_ch->max_power = ch->max_power_avg;
1262 geo_ch->max_antenna_gain = 0xff;
1263 geo_ch->hw_value = ch->channel;
1264
1265 if (is_channel_valid(ch)) {
1266 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
1267 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
1268
1269 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
1270 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
1271
1272 if (ch->flags & EEPROM_CHANNEL_RADAR)
1273 geo_ch->flags |= IEEE80211_CHAN_RADAR;
1274
1275 geo_ch->flags |= ch->ht40_extension_channel;
1276
1277 if (ch->max_power_avg > max_tx_power)
1278 max_tx_power = ch->max_power_avg;
1279 } else {
1280 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
1281 }
1282
1283 IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
1284 ch->channel, geo_ch->center_freq,
1285 is_channel_a_band(ch) ? "5.2" : "2.4",
1286 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
1287 "restricted" : "valid",
1288 geo_ch->flags);
1289 }
1290
1291 priv->tx_power_device_lmt = max_tx_power;
1292 priv->tx_power_user_lmt = max_tx_power;
1293 priv->tx_power_next = max_tx_power;
1294
1295 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
1296 hw_params(priv).sku & EEPROM_SKU_CAP_BAND_52GHZ) {
1297 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
1298 "Please send your %s to maintainer.\n",
1299 trans(priv)->hw_id_str);
1300 hw_params(priv).sku &= ~EEPROM_SKU_CAP_BAND_52GHZ;
1301 }
1302
1303 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
1304 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
1305 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
1306
1307 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
1308
1309 return 0;
1310 }
1311
1312 /*
1313 * iwl_free_geos - undo allocations in iwl_init_geos
1314 */
1315 static void iwl_free_geos(struct iwl_priv *priv)
1316 {
1317 kfree(priv->ieee_channels);
1318 kfree(priv->ieee_rates);
1319 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
1320 }
1321
1322 static int iwl_init_drv(struct iwl_priv *priv)
1323 {
1324 int ret;
1325
1326 spin_lock_init(&priv->sta_lock);
1327
1328 mutex_init(&priv->mutex);
1329
1330 INIT_LIST_HEAD(&priv->calib_results);
1331
1332 priv->ieee_channels = NULL;
1333 priv->ieee_rates = NULL;
1334 priv->band = IEEE80211_BAND_2GHZ;
1335
1336 priv->plcp_delta_threshold =
1337 cfg(priv)->base_params->plcp_delta_threshold;
1338
1339 priv->iw_mode = NL80211_IFTYPE_STATION;
1340 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1341 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1342 priv->agg_tids_count = 0;
1343
1344 priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
1345
1346 /* initialize force reset */
1347 priv->force_reset[IWL_RF_RESET].reset_duration =
1348 IWL_DELAY_NEXT_FORCE_RF_RESET;
1349 priv->force_reset[IWL_FW_RESET].reset_duration =
1350 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
1351
1352 priv->rx_statistics_jiffies = jiffies;
1353
1354 /* Choose which receivers/antennas to use */
1355 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1356
1357 iwl_init_scan_params(priv);
1358
1359 /* init bt coex */
1360 if (cfg(priv)->bt_params &&
1361 cfg(priv)->bt_params->advanced_bt_coexist) {
1362 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1363 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1364 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1365 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1366 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1367 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1368 }
1369
1370 ret = iwl_init_channel_map(priv);
1371 if (ret) {
1372 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1373 goto err;
1374 }
1375
1376 ret = iwl_init_geos(priv);
1377 if (ret) {
1378 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1379 goto err_free_channel_map;
1380 }
1381 iwl_init_hw_rates(priv->ieee_rates);
1382
1383 return 0;
1384
1385 err_free_channel_map:
1386 iwl_free_channel_map(priv);
1387 err:
1388 return ret;
1389 }
1390
1391 static void iwl_uninit_drv(struct iwl_priv *priv)
1392 {
1393 iwl_free_geos(priv);
1394 iwl_free_channel_map(priv);
1395 kfree(priv->scan_cmd);
1396 kfree(priv->beacon_cmd);
1397 kfree(rcu_dereference_raw(priv->noa_data));
1398 iwl_calib_free_results(priv);
1399 #ifdef CONFIG_IWLWIFI_DEBUGFS
1400 kfree(priv->wowlan_sram);
1401 #endif
1402 }
1403
1404 /* Size of one Rx buffer in host DRAM */
1405 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
1406 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
1407
1408 static void iwl_set_hw_params(struct iwl_priv *priv)
1409 {
1410 if (cfg(priv)->ht_params)
1411 hw_params(priv).use_rts_for_aggregation =
1412 cfg(priv)->ht_params->use_rts_for_aggregation;
1413
1414 if (iwlagn_mod_params.amsdu_size_8K)
1415 hw_params(priv).rx_page_order =
1416 get_order(IWL_RX_BUF_SIZE_8K);
1417 else
1418 hw_params(priv).rx_page_order =
1419 get_order(IWL_RX_BUF_SIZE_4K);
1420
1421 if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
1422 hw_params(priv).sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
1423
1424 hw_params(priv).wd_timeout = cfg(priv)->base_params->wd_timeout;
1425
1426 /* Device-specific setup */
1427 cfg(priv)->lib->set_hw_params(priv);
1428 }
1429
1430
1431
1432 static void iwl_debug_config(struct iwl_priv *priv)
1433 {
1434 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
1435 #ifdef CONFIG_IWLWIFI_DEBUG
1436 "enabled\n");
1437 #else
1438 "disabled\n");
1439 #endif
1440 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
1441 #ifdef CONFIG_IWLWIFI_DEBUGFS
1442 "enabled\n");
1443 #else
1444 "disabled\n");
1445 #endif
1446 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
1447 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1448 "enabled\n");
1449 #else
1450 "disabled\n");
1451 #endif
1452
1453 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1454 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1455 "enabled\n");
1456 #else
1457 "disabled\n");
1458 #endif
1459 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
1460 #ifdef CONFIG_IWLWIFI_P2P
1461 "enabled\n");
1462 #else
1463 "disabled\n");
1464 #endif
1465 }
1466
1467 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
1468 const struct iwl_fw *fw)
1469 {
1470 struct iwl_priv *priv;
1471 struct ieee80211_hw *hw;
1472 struct iwl_op_mode *op_mode;
1473 u16 num_mac;
1474 u32 ucode_flags;
1475 struct iwl_trans_config trans_cfg;
1476 static const u8 no_reclaim_cmds[] = {
1477 REPLY_RX_PHY_CMD,
1478 REPLY_RX,
1479 REPLY_RX_MPDU_CMD,
1480 REPLY_COMPRESSED_BA,
1481 STATISTICS_NOTIFICATION,
1482 REPLY_TX,
1483 };
1484 const u8 *q_to_ac;
1485 int n_q_to_ac;
1486 int i;
1487
1488 /************************
1489 * 1. Allocating HW data
1490 ************************/
1491 hw = iwl_alloc_all();
1492 if (!hw) {
1493 pr_err("%s: Cannot allocate network device\n",
1494 cfg(trans)->name);
1495 goto out;
1496 }
1497
1498 op_mode = hw->priv;
1499 op_mode->ops = &iwl_dvm_ops;
1500 priv = IWL_OP_MODE_GET_DVM(op_mode);
1501 priv->shrd = trans->shrd;
1502 priv->fw = fw;
1503
1504 /*
1505 * Populate the state variables that the transport layer needs
1506 * to know about.
1507 */
1508 trans_cfg.op_mode = op_mode;
1509 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1510 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1511
1512 ucode_flags = fw->ucode_capa.flags;
1513
1514 #ifndef CONFIG_IWLWIFI_P2P
1515 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1516 #endif
1517
1518 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1519 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1520 trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1521 trans_cfg.queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
1522 trans_cfg.n_queue_to_fifo =
1523 ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
1524 q_to_ac = iwlagn_pan_queue_to_ac;
1525 n_q_to_ac = ARRAY_SIZE(iwlagn_pan_queue_to_ac);
1526 } else {
1527 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1528 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1529 trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
1530 trans_cfg.n_queue_to_fifo =
1531 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
1532 q_to_ac = iwlagn_bss_queue_to_ac;
1533 n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac);
1534 }
1535
1536 /* Configure transport layer */
1537 iwl_trans_configure(trans(priv), &trans_cfg);
1538
1539 /* At this point both hw and priv are allocated. */
1540
1541 SET_IEEE80211_DEV(priv->hw, trans(priv)->dev);
1542
1543 /* show what debugging capabilities we have */
1544 iwl_debug_config(priv);
1545
1546 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1547
1548 /* is antenna coupling more than 35dB ? */
1549 priv->bt_ant_couple_ok =
1550 (iwlagn_mod_params.ant_coupling >
1551 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1552 true : false;
1553
1554 /* enable/disable bt channel inhibition */
1555 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
1556 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1557 (priv->bt_ch_announce) ? "On" : "Off");
1558
1559 if (iwl_alloc_traffic_mem(priv))
1560 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
1561
1562 /* these spin locks will be used in apm_ops.init and EEPROM access
1563 * we should init now
1564 */
1565 spin_lock_init(&trans(priv)->reg_lock);
1566 spin_lock_init(&priv->statistics.lock);
1567
1568 /***********************
1569 * 2. Read REV register
1570 ***********************/
1571 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1572 cfg(priv)->name, trans(priv)->hw_rev);
1573
1574 if (iwl_trans_start_hw(trans(priv)))
1575 goto out_free_traffic_mem;
1576
1577 /*****************
1578 * 3. Read EEPROM
1579 *****************/
1580 /* Read the EEPROM */
1581 if (iwl_eeprom_init(trans(priv), trans(priv)->hw_rev)) {
1582 IWL_ERR(priv, "Unable to init EEPROM\n");
1583 goto out_free_traffic_mem;
1584 }
1585 /* Reset chip to save power until we load uCode during "up". */
1586 iwl_trans_stop_hw(trans(priv));
1587
1588 if (iwl_eeprom_check_version(priv))
1589 goto out_free_eeprom;
1590
1591 if (iwl_eeprom_init_hw_params(priv))
1592 goto out_free_eeprom;
1593
1594 /* extract MAC Address */
1595 iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr);
1596 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1597 priv->hw->wiphy->addresses = priv->addresses;
1598 priv->hw->wiphy->n_addresses = 1;
1599 num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS);
1600 if (num_mac > 1) {
1601 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1602 ETH_ALEN);
1603 priv->addresses[1].addr[5]++;
1604 priv->hw->wiphy->n_addresses++;
1605 }
1606
1607 /************************
1608 * 4. Setup HW constants
1609 ************************/
1610 iwl_set_hw_params(priv);
1611
1612 if (!(hw_params(priv).sku & EEPROM_SKU_CAP_IPAN_ENABLE)) {
1613 IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN");
1614 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1615 /*
1616 * if not PAN, then don't support P2P -- might be a uCode
1617 * packaging bug or due to the eeprom check above
1618 */
1619 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1620 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1621 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1622 trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
1623 trans_cfg.n_queue_to_fifo =
1624 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
1625 q_to_ac = iwlagn_bss_queue_to_ac;
1626 n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac);
1627
1628 /* Configure transport layer again*/
1629 iwl_trans_configure(trans(priv), &trans_cfg);
1630 }
1631
1632 /*******************
1633 * 5. Setup priv
1634 *******************/
1635 for (i = 0; i < IEEE80211_NUM_ACS; i++)
1636 atomic_set(&priv->ac_stop_count[i], 0);
1637
1638 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
1639 if (i < n_q_to_ac)
1640 priv->queue_to_ac[i] = q_to_ac[i];
1641 else
1642 priv->queue_to_ac[i] = IWL_INVALID_AC;
1643 }
1644
1645 WARN_ON(trans_cfg.queue_to_fifo[trans_cfg.cmd_queue] !=
1646 IWLAGN_CMD_FIFO_NUM);
1647
1648 if (iwl_init_drv(priv))
1649 goto out_free_eeprom;
1650
1651 /* At this point both hw and priv are initialized. */
1652
1653 /********************
1654 * 6. Setup services
1655 ********************/
1656 iwl_setup_deferred_work(priv);
1657 iwl_setup_rx_handlers(priv);
1658 iwl_testmode_init(priv);
1659
1660 iwl_power_initialize(priv);
1661 iwl_tt_initialize(priv);
1662
1663 snprintf(priv->hw->wiphy->fw_version,
1664 sizeof(priv->hw->wiphy->fw_version),
1665 "%s", fw->fw_version);
1666
1667 priv->new_scan_threshold_behaviour =
1668 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1669
1670 priv->phy_calib_chain_noise_reset_cmd =
1671 fw->ucode_capa.standard_phy_calibration_size;
1672 priv->phy_calib_chain_noise_gain_cmd =
1673 fw->ucode_capa.standard_phy_calibration_size + 1;
1674
1675 /* initialize all valid contexts */
1676 iwl_init_context(priv, ucode_flags);
1677
1678 /**************************************************
1679 * This is still part of probe() in a sense...
1680 *
1681 * 7. Setup and register with mac80211 and debugfs
1682 **************************************************/
1683 if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
1684 goto out_destroy_workqueue;
1685
1686 if (iwl_dbgfs_register(priv, DRV_NAME))
1687 IWL_ERR(priv,
1688 "failed to create debugfs files. Ignoring error\n");
1689
1690 return op_mode;
1691
1692 out_destroy_workqueue:
1693 destroy_workqueue(priv->workqueue);
1694 priv->workqueue = NULL;
1695 iwl_uninit_drv(priv);
1696 out_free_eeprom:
1697 iwl_eeprom_free(priv->shrd);
1698 out_free_traffic_mem:
1699 iwl_free_traffic_mem(priv);
1700 ieee80211_free_hw(priv->hw);
1701 out:
1702 op_mode = NULL;
1703 return op_mode;
1704 }
1705
1706 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1707 {
1708 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1709
1710 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1711
1712 iwl_dbgfs_unregister(priv);
1713
1714 iwl_testmode_cleanup(priv);
1715 iwlagn_mac_unregister(priv);
1716
1717 iwl_tt_exit(priv);
1718
1719 /*This will stop the queues, move the device to low power state */
1720 priv->ucode_loaded = false;
1721 iwl_trans_stop_device(trans(priv));
1722
1723 iwl_eeprom_free(priv->shrd);
1724
1725 /*netif_stop_queue(dev); */
1726 flush_workqueue(priv->workqueue);
1727
1728 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1729 * priv->workqueue... so we can't take down the workqueue
1730 * until now... */
1731 destroy_workqueue(priv->workqueue);
1732 priv->workqueue = NULL;
1733 iwl_free_traffic_mem(priv);
1734
1735 iwl_uninit_drv(priv);
1736
1737 dev_kfree_skb(priv->beacon_skb);
1738
1739 ieee80211_free_hw(priv->hw);
1740 }
1741
1742 static const char * const desc_lookup_text[] = {
1743 "OK",
1744 "FAIL",
1745 "BAD_PARAM",
1746 "BAD_CHECKSUM",
1747 "NMI_INTERRUPT_WDG",
1748 "SYSASSERT",
1749 "FATAL_ERROR",
1750 "BAD_COMMAND",
1751 "HW_ERROR_TUNE_LOCK",
1752 "HW_ERROR_TEMPERATURE",
1753 "ILLEGAL_CHAN_FREQ",
1754 "VCC_NOT_STABLE",
1755 "FH_ERROR",
1756 "NMI_INTERRUPT_HOST",
1757 "NMI_INTERRUPT_ACTION_PT",
1758 "NMI_INTERRUPT_UNKNOWN",
1759 "UCODE_VERSION_MISMATCH",
1760 "HW_ERROR_ABS_LOCK",
1761 "HW_ERROR_CAL_LOCK_FAIL",
1762 "NMI_INTERRUPT_INST_ACTION_PT",
1763 "NMI_INTERRUPT_DATA_ACTION_PT",
1764 "NMI_TRM_HW_ER",
1765 "NMI_INTERRUPT_TRM",
1766 "NMI_INTERRUPT_BREAK_POINT",
1767 "DEBUG_0",
1768 "DEBUG_1",
1769 "DEBUG_2",
1770 "DEBUG_3",
1771 };
1772
1773 static struct { char *name; u8 num; } advanced_lookup[] = {
1774 { "NMI_INTERRUPT_WDG", 0x34 },
1775 { "SYSASSERT", 0x35 },
1776 { "UCODE_VERSION_MISMATCH", 0x37 },
1777 { "BAD_COMMAND", 0x38 },
1778 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1779 { "FATAL_ERROR", 0x3D },
1780 { "NMI_TRM_HW_ERR", 0x46 },
1781 { "NMI_INTERRUPT_TRM", 0x4C },
1782 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1783 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1784 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1785 { "NMI_INTERRUPT_HOST", 0x66 },
1786 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1787 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1788 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1789 { "ADVANCED_SYSASSERT", 0 },
1790 };
1791
1792 static const char *desc_lookup(u32 num)
1793 {
1794 int i;
1795 int max = ARRAY_SIZE(desc_lookup_text);
1796
1797 if (num < max)
1798 return desc_lookup_text[num];
1799
1800 max = ARRAY_SIZE(advanced_lookup) - 1;
1801 for (i = 0; i < max; i++) {
1802 if (advanced_lookup[i].num == num)
1803 break;
1804 }
1805 return advanced_lookup[i].name;
1806 }
1807
1808 #define ERROR_START_OFFSET (1 * sizeof(u32))
1809 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1810
1811 static void iwl_dump_nic_error_log(struct iwl_priv *priv)
1812 {
1813 struct iwl_trans *trans = trans(priv);
1814 u32 base;
1815 struct iwl_error_event_table table;
1816
1817 base = priv->device_pointers.error_event_table;
1818 if (priv->cur_ucode == IWL_UCODE_INIT) {
1819 if (!base)
1820 base = priv->fw->init_errlog_ptr;
1821 } else {
1822 if (!base)
1823 base = priv->fw->inst_errlog_ptr;
1824 }
1825
1826 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1827 IWL_ERR(priv,
1828 "Not valid error log pointer 0x%08X for %s uCode\n",
1829 base,
1830 (priv->cur_ucode == IWL_UCODE_INIT)
1831 ? "Init" : "RT");
1832 return;
1833 }
1834
1835 /*TODO: Update dbgfs with ISR error stats obtained below */
1836 iwl_read_targ_mem_words(trans, base, &table, sizeof(table));
1837
1838 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
1839 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
1840 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
1841 priv->shrd->status, table.valid);
1842 }
1843
1844 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
1845 table.data1, table.data2, table.line,
1846 table.blink1, table.blink2, table.ilink1,
1847 table.ilink2, table.bcon_time, table.gp1,
1848 table.gp2, table.gp3, table.ucode_ver,
1849 table.hw_ver, table.brd_ver);
1850 IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
1851 desc_lookup(table.error_id));
1852 IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
1853 IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
1854 IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
1855 IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
1856 IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
1857 IWL_ERR(priv, "0x%08X | data1\n", table.data1);
1858 IWL_ERR(priv, "0x%08X | data2\n", table.data2);
1859 IWL_ERR(priv, "0x%08X | line\n", table.line);
1860 IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
1861 IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
1862 IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
1863 IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
1864 IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
1865 IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
1866 IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
1867 IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
1868 IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
1869 IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
1870 IWL_ERR(priv, "0x%08X | isr0\n", table.isr0);
1871 IWL_ERR(priv, "0x%08X | isr1\n", table.isr1);
1872 IWL_ERR(priv, "0x%08X | isr2\n", table.isr2);
1873 IWL_ERR(priv, "0x%08X | isr3\n", table.isr3);
1874 IWL_ERR(priv, "0x%08X | isr4\n", table.isr4);
1875 IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref);
1876 IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event);
1877 IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control);
1878 IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration);
1879 IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
1880 IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
1881 IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
1882 IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp);
1883 IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler);
1884 }
1885
1886 #define EVENT_START_OFFSET (4 * sizeof(u32))
1887
1888 /**
1889 * iwl_print_event_log - Dump error event log to syslog
1890 *
1891 */
1892 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
1893 u32 num_events, u32 mode,
1894 int pos, char **buf, size_t bufsz)
1895 {
1896 u32 i;
1897 u32 base; /* SRAM byte address of event log header */
1898 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1899 u32 ptr; /* SRAM byte address of log data */
1900 u32 ev, time, data; /* event log data */
1901 unsigned long reg_flags;
1902
1903 struct iwl_trans *trans = trans(priv);
1904
1905 if (num_events == 0)
1906 return pos;
1907
1908 base = priv->device_pointers.log_event_table;
1909 if (priv->cur_ucode == IWL_UCODE_INIT) {
1910 if (!base)
1911 base = priv->fw->init_evtlog_ptr;
1912 } else {
1913 if (!base)
1914 base = priv->fw->inst_evtlog_ptr;
1915 }
1916
1917 if (mode == 0)
1918 event_size = 2 * sizeof(u32);
1919 else
1920 event_size = 3 * sizeof(u32);
1921
1922 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1923
1924 /* Make sure device is powered up for SRAM reads */
1925 spin_lock_irqsave(&trans->reg_lock, reg_flags);
1926 if (unlikely(!iwl_grab_nic_access(trans)))
1927 goto out_unlock;
1928
1929 /* Set starting address; reads will auto-increment */
1930 iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr);
1931
1932 /* "time" is actually "data" for mode 0 (no timestamp).
1933 * place event id # at far right for easier visual parsing. */
1934 for (i = 0; i < num_events; i++) {
1935 ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1936 time = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1937 if (mode == 0) {
1938 /* data, ev */
1939 if (bufsz) {
1940 pos += scnprintf(*buf + pos, bufsz - pos,
1941 "EVT_LOG:0x%08x:%04u\n",
1942 time, ev);
1943 } else {
1944 trace_iwlwifi_dev_ucode_event(trans->dev, 0,
1945 time, ev);
1946 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
1947 time, ev);
1948 }
1949 } else {
1950 data = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1951 if (bufsz) {
1952 pos += scnprintf(*buf + pos, bufsz - pos,
1953 "EVT_LOGT:%010u:0x%08x:%04u\n",
1954 time, data, ev);
1955 } else {
1956 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
1957 time, data, ev);
1958 trace_iwlwifi_dev_ucode_event(trans->dev, time,
1959 data, ev);
1960 }
1961 }
1962 }
1963
1964 /* Allow device to power down */
1965 iwl_release_nic_access(trans);
1966 out_unlock:
1967 spin_unlock_irqrestore(&trans->reg_lock, reg_flags);
1968 return pos;
1969 }
1970
1971 /**
1972 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1973 */
1974 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
1975 u32 num_wraps, u32 next_entry,
1976 u32 size, u32 mode,
1977 int pos, char **buf, size_t bufsz)
1978 {
1979 /*
1980 * display the newest DEFAULT_LOG_ENTRIES entries
1981 * i.e the entries just before the next ont that uCode would fill.
1982 */
1983 if (num_wraps) {
1984 if (next_entry < size) {
1985 pos = iwl_print_event_log(priv,
1986 capacity - (size - next_entry),
1987 size - next_entry, mode,
1988 pos, buf, bufsz);
1989 pos = iwl_print_event_log(priv, 0,
1990 next_entry, mode,
1991 pos, buf, bufsz);
1992 } else
1993 pos = iwl_print_event_log(priv, next_entry - size,
1994 size, mode, pos, buf, bufsz);
1995 } else {
1996 if (next_entry < size) {
1997 pos = iwl_print_event_log(priv, 0, next_entry,
1998 mode, pos, buf, bufsz);
1999 } else {
2000 pos = iwl_print_event_log(priv, next_entry - size,
2001 size, mode, pos, buf, bufsz);
2002 }
2003 }
2004 return pos;
2005 }
2006
2007 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
2008
2009 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
2010 char **buf, bool display)
2011 {
2012 u32 base; /* SRAM byte address of event log header */
2013 u32 capacity; /* event log capacity in # entries */
2014 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
2015 u32 num_wraps; /* # times uCode wrapped to top of log */
2016 u32 next_entry; /* index of next entry to be written by uCode */
2017 u32 size; /* # entries that we'll print */
2018 u32 logsize;
2019 int pos = 0;
2020 size_t bufsz = 0;
2021 struct iwl_trans *trans = trans(priv);
2022
2023 base = priv->device_pointers.log_event_table;
2024 if (priv->cur_ucode == IWL_UCODE_INIT) {
2025 logsize = priv->fw->init_evtlog_size;
2026 if (!base)
2027 base = priv->fw->init_evtlog_ptr;
2028 } else {
2029 logsize = priv->fw->inst_evtlog_size;
2030 if (!base)
2031 base = priv->fw->inst_evtlog_ptr;
2032 }
2033
2034 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
2035 IWL_ERR(priv,
2036 "Invalid event log pointer 0x%08X for %s uCode\n",
2037 base,
2038 (priv->cur_ucode == IWL_UCODE_INIT)
2039 ? "Init" : "RT");
2040 return -EINVAL;
2041 }
2042
2043 /* event log header */
2044 capacity = iwl_read_targ_mem(trans, base);
2045 mode = iwl_read_targ_mem(trans, base + (1 * sizeof(u32)));
2046 num_wraps = iwl_read_targ_mem(trans, base + (2 * sizeof(u32)));
2047 next_entry = iwl_read_targ_mem(trans, base + (3 * sizeof(u32)));
2048
2049 if (capacity > logsize) {
2050 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d "
2051 "entries\n", capacity, logsize);
2052 capacity = logsize;
2053 }
2054
2055 if (next_entry > logsize) {
2056 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
2057 next_entry, logsize);
2058 next_entry = logsize;
2059 }
2060
2061 size = num_wraps ? capacity : next_entry;
2062
2063 /* bail out if nothing in log */
2064 if (size == 0) {
2065 IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
2066 return pos;
2067 }
2068
2069 #ifdef CONFIG_IWLWIFI_DEBUG
2070 if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
2071 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2072 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2073 #else
2074 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2075 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2076 #endif
2077 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
2078 size);
2079
2080 #ifdef CONFIG_IWLWIFI_DEBUG
2081 if (display) {
2082 if (full_log)
2083 bufsz = capacity * 48;
2084 else
2085 bufsz = size * 48;
2086 *buf = kmalloc(bufsz, GFP_KERNEL);
2087 if (!*buf)
2088 return -ENOMEM;
2089 }
2090 if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
2091 /*
2092 * if uCode has wrapped back to top of log,
2093 * start at the oldest entry,
2094 * i.e the next one that uCode would fill.
2095 */
2096 if (num_wraps)
2097 pos = iwl_print_event_log(priv, next_entry,
2098 capacity - next_entry, mode,
2099 pos, buf, bufsz);
2100 /* (then/else) start at top of log */
2101 pos = iwl_print_event_log(priv, 0,
2102 next_entry, mode, pos, buf, bufsz);
2103 } else
2104 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2105 next_entry, size, mode,
2106 pos, buf, bufsz);
2107 #else
2108 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2109 next_entry, size, mode,
2110 pos, buf, bufsz);
2111 #endif
2112 return pos;
2113 }
2114
2115 static void iwl_nic_error(struct iwl_op_mode *op_mode)
2116 {
2117 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2118
2119 IWL_ERR(priv, "Loaded firmware version: %s\n",
2120 priv->fw->fw_version);
2121
2122 iwl_dump_nic_error_log(priv);
2123 iwl_dump_nic_event_log(priv, false, NULL, false);
2124
2125 iwlagn_fw_error(priv, false);
2126 }
2127
2128 static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
2129 {
2130 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2131
2132 if (!iwl_check_for_ct_kill(priv)) {
2133 IWL_ERR(priv, "Restarting adapter queue is full\n");
2134 iwlagn_fw_error(priv, false);
2135 }
2136 }
2137
2138 static void iwl_nic_config(struct iwl_op_mode *op_mode)
2139 {
2140 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2141
2142 cfg(priv)->lib->nic_config(priv);
2143 }
2144
2145 static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
2146 {
2147 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2148 int ac = priv->queue_to_ac[queue];
2149
2150 if (WARN_ON_ONCE(ac == IWL_INVALID_AC))
2151 return;
2152
2153 if (atomic_inc_return(&priv->ac_stop_count[ac]) > 1) {
2154 IWL_DEBUG_TX_QUEUES(priv,
2155 "queue %d (AC %d) already stopped\n",
2156 queue, ac);
2157 return;
2158 }
2159
2160 set_bit(ac, &priv->transport_queue_stop);
2161 ieee80211_stop_queue(priv->hw, ac);
2162 }
2163
2164 static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
2165 {
2166 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2167 int ac = priv->queue_to_ac[queue];
2168
2169 if (WARN_ON_ONCE(ac == IWL_INVALID_AC))
2170 return;
2171
2172 if (atomic_dec_return(&priv->ac_stop_count[ac]) > 0) {
2173 IWL_DEBUG_TX_QUEUES(priv,
2174 "queue %d (AC %d) already awake\n",
2175 queue, ac);
2176 return;
2177 }
2178
2179 clear_bit(ac, &priv->transport_queue_stop);
2180
2181 if (!priv->passive_no_rx)
2182 ieee80211_wake_queue(priv->hw, ac);
2183 }
2184
2185 void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
2186 {
2187 int ac;
2188
2189 if (!priv->passive_no_rx)
2190 return;
2191
2192 for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) {
2193 if (!test_bit(ac, &priv->transport_queue_stop)) {
2194 IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d");
2195 ieee80211_wake_queue(priv->hw, ac);
2196 } else {
2197 IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d");
2198 }
2199 }
2200
2201 priv->passive_no_rx = false;
2202 }
2203
2204 const struct iwl_op_mode_ops iwl_dvm_ops = {
2205 .start = iwl_op_mode_dvm_start,
2206 .stop = iwl_op_mode_dvm_stop,
2207 .rx = iwl_rx_dispatch,
2208 .queue_full = iwl_stop_sw_queue,
2209 .queue_not_full = iwl_wake_sw_queue,
2210 .hw_rf_kill = iwl_set_hw_rfkill_state,
2211 .free_skb = iwl_free_skb,
2212 .nic_error = iwl_nic_error,
2213 .cmd_queue_full = iwl_cmd_queue_full,
2214 .nic_config = iwl_nic_config,
2215 };
2216
2217 /*****************************************************************************
2218 *
2219 * driver and module entry point
2220 *
2221 *****************************************************************************/
2222
2223 struct kmem_cache *iwl_tx_cmd_pool;
2224
2225 static int __init iwl_init(void)
2226 {
2227
2228 int ret;
2229 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
2230 pr_info(DRV_COPYRIGHT "\n");
2231
2232 iwl_tx_cmd_pool = kmem_cache_create("iwl_dev_cmd",
2233 sizeof(struct iwl_device_cmd),
2234 sizeof(void *), 0, NULL);
2235 if (!iwl_tx_cmd_pool)
2236 return -ENOMEM;
2237
2238 ret = iwlagn_rate_control_register();
2239 if (ret) {
2240 pr_err("Unable to register rate control algorithm: %d\n", ret);
2241 goto error_rc_register;
2242 }
2243
2244 ret = iwl_pci_register_driver();
2245 if (ret)
2246 goto error_pci_register;
2247 return ret;
2248
2249 error_pci_register:
2250 iwlagn_rate_control_unregister();
2251 error_rc_register:
2252 kmem_cache_destroy(iwl_tx_cmd_pool);
2253 return ret;
2254 }
2255
2256 static void __exit iwl_exit(void)
2257 {
2258 iwl_pci_unregister_driver();
2259 iwlagn_rate_control_unregister();
2260 kmem_cache_destroy(iwl_tx_cmd_pool);
2261 }
2262
2263 module_exit(iwl_exit);
2264 module_init(iwl_init);
2265
2266 #ifdef CONFIG_IWLWIFI_DEBUG
2267 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
2268 S_IRUGO | S_IWUSR);
2269 MODULE_PARM_DESC(debug, "debug output mask");
2270 #endif
2271
2272 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
2273 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
2274 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
2275 MODULE_PARM_DESC(11n_disable,
2276 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
2277 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
2278 int, S_IRUGO);
2279 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
2280 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
2281 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
2282
2283 module_param_named(ucode_alternative,
2284 iwlagn_mod_params.wanted_ucode_alternative,
2285 int, S_IRUGO);
2286 MODULE_PARM_DESC(ucode_alternative,
2287 "specify ucode alternative to use from ucode file");
2288
2289 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
2290 int, S_IRUGO);
2291 MODULE_PARM_DESC(antenna_coupling,
2292 "specify antenna coupling in dB (defualt: 0 dB)");
2293
2294 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
2295 bool, S_IRUGO);
2296 MODULE_PARM_DESC(bt_ch_inhibition,
2297 "Enable BT channel inhibition (default: enable)");
2298
2299 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
2300 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
2301
2302 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
2303 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
2304
2305 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
2306 MODULE_PARM_DESC(wd_disable,
2307 "Disable stuck queue watchdog timer 0=system default, "
2308 "1=disable, 2=enable (default: 0)");
2309
2310 /*
2311 * set bt_coex_active to true, uCode will do kill/defer
2312 * every time the priority line is asserted (BT is sending signals on the
2313 * priority line in the PCIx).
2314 * set bt_coex_active to false, uCode will ignore the BT activity and
2315 * perform the normal operation
2316 *
2317 * User might experience transmit issue on some platform due to WiFi/BT
2318 * co-exist problem. The possible behaviors are:
2319 * Able to scan and finding all the available AP
2320 * Not able to associate with any AP
2321 * On those platforms, WiFi communication can be restored by set
2322 * "bt_coex_active" module parameter to "false"
2323 *
2324 * default: bt_coex_active = true (BT_COEX_ENABLE)
2325 */
2326 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
2327 bool, S_IRUGO);
2328 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2329
2330 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
2331 MODULE_PARM_DESC(led_mode, "0=system default, "
2332 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2333
2334 module_param_named(power_save, iwlagn_mod_params.power_save,
2335 bool, S_IRUGO);
2336 MODULE_PARM_DESC(power_save,
2337 "enable WiFi power management (default: disable)");
2338
2339 module_param_named(power_level, iwlagn_mod_params.power_level,
2340 int, S_IRUGO);
2341 MODULE_PARM_DESC(power_level,
2342 "default power save level (range from 1 - 5, default: 1)");
2343
2344 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
2345 bool, S_IRUGO);
2346 MODULE_PARM_DESC(auto_agg,
2347 "enable agg w/o check traffic load (default: enable)");
2348
2349 /*
2350 * For now, keep using power level 1 instead of automatically
2351 * adjusting ...
2352 */
2353 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
2354 bool, S_IRUGO);
2355 MODULE_PARM_DESC(no_sleep_autoadjust,
2356 "don't automatically adjust sleep level "
2357 "according to maximum network latency (default: true)");
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