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iwlwifi: move hw_params into priv
[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 priv->hw_params.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(priv->hw_params.ct_kill_threshold);
662 adv_cmd.critical_temperature_exit =
663 cpu_to_le32(priv->hw_params.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 priv->hw_params.ct_kill_threshold,
675 priv->hw_params.ct_kill_exit_threshold);
676 } else {
677 cmd.critical_temperature_R =
678 cpu_to_le32(priv->hw_params.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 priv->hw_params.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 if (iwl_is_rfkill(priv))
745 return -ERFKILL;
746
747 if (priv->event_log.ucode_trace) {
748 /* start collecting data now */
749 mod_timer(&priv->ucode_trace, jiffies);
750 }
751
752 /* download priority table before any calibration request */
753 if (cfg(priv)->bt_params &&
754 cfg(priv)->bt_params->advanced_bt_coexist) {
755 /* Configure Bluetooth device coexistence support */
756 if (cfg(priv)->bt_params->bt_sco_disable)
757 priv->bt_enable_pspoll = false;
758 else
759 priv->bt_enable_pspoll = true;
760
761 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
762 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
763 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
764 iwlagn_send_advance_bt_config(priv);
765 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
766 priv->cur_rssi_ctx = NULL;
767
768 iwl_send_prio_tbl(priv);
769
770 /* FIXME: w/a to force change uCode BT state machine */
771 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
772 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
773 if (ret)
774 return ret;
775 ret = iwl_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
776 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
777 if (ret)
778 return ret;
779 } else {
780 /*
781 * default is 2-wire BT coexexistence support
782 */
783 iwl_send_bt_config(priv);
784 }
785
786 /*
787 * Perform runtime calibrations, including DC calibration.
788 */
789 iwlagn_send_calib_cfg_rt(priv, IWL_CALIB_CFG_DC_IDX);
790
791 ieee80211_wake_queues(priv->hw);
792
793 priv->active_rate = IWL_RATES_MASK;
794
795 /* Configure Tx antenna selection based on H/W config */
796 iwlagn_send_tx_ant_config(priv, priv->hw_params.valid_tx_ant);
797
798 if (iwl_is_associated_ctx(ctx) && !priv->wowlan) {
799 struct iwl_rxon_cmd *active_rxon =
800 (struct iwl_rxon_cmd *)&ctx->active;
801 /* apply any changes in staging */
802 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
803 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
804 } else {
805 struct iwl_rxon_context *tmp;
806 /* Initialize our rx_config data */
807 for_each_context(priv, tmp)
808 iwl_connection_init_rx_config(priv, tmp);
809
810 iwlagn_set_rxon_chain(priv, ctx);
811 }
812
813 if (!priv->wowlan) {
814 /* WoWLAN ucode will not reply in the same way, skip it */
815 iwl_reset_run_time_calib(priv);
816 }
817
818 set_bit(STATUS_READY, &priv->status);
819
820 /* Configure the adapter for unassociated operation */
821 ret = iwlagn_commit_rxon(priv, ctx);
822 if (ret)
823 return ret;
824
825 /* At this point, the NIC is initialized and operational */
826 iwl_rf_kill_ct_config(priv);
827
828 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
829
830 return iwl_power_update_mode(priv, true);
831 }
832
833 /**
834 * iwl_clear_driver_stations - clear knowledge of all stations from driver
835 * @priv: iwl priv struct
836 *
837 * This is called during iwl_down() to make sure that in the case
838 * we're coming there from a hardware restart mac80211 will be
839 * able to reconfigure stations -- if we're getting there in the
840 * normal down flow then the stations will already be cleared.
841 */
842 static void iwl_clear_driver_stations(struct iwl_priv *priv)
843 {
844 struct iwl_rxon_context *ctx;
845
846 spin_lock_bh(&priv->sta_lock);
847 memset(priv->stations, 0, sizeof(priv->stations));
848 priv->num_stations = 0;
849
850 priv->ucode_key_table = 0;
851
852 for_each_context(priv, ctx) {
853 /*
854 * Remove all key information that is not stored as part
855 * of station information since mac80211 may not have had
856 * a chance to remove all the keys. When device is
857 * reconfigured by mac80211 after an error all keys will
858 * be reconfigured.
859 */
860 memset(ctx->wep_keys, 0, sizeof(ctx->wep_keys));
861 ctx->key_mapping_keys = 0;
862 }
863
864 spin_unlock_bh(&priv->sta_lock);
865 }
866
867 void iwl_down(struct iwl_priv *priv)
868 {
869 int exit_pending;
870
871 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
872
873 lockdep_assert_held(&priv->mutex);
874
875 iwl_scan_cancel_timeout(priv, 200);
876
877 /*
878 * If active, scanning won't cancel it, so say it expired.
879 * No race since we hold the mutex here and a new one
880 * can't come in at this time.
881 */
882 ieee80211_remain_on_channel_expired(priv->hw);
883
884 exit_pending =
885 test_and_set_bit(STATUS_EXIT_PENDING, &priv->status);
886
887 iwl_clear_ucode_stations(priv, NULL);
888 iwl_dealloc_bcast_stations(priv);
889 iwl_clear_driver_stations(priv);
890
891 /* reset BT coex data */
892 priv->bt_status = 0;
893 priv->cur_rssi_ctx = NULL;
894 priv->bt_is_sco = 0;
895 if (cfg(priv)->bt_params)
896 priv->bt_traffic_load =
897 cfg(priv)->bt_params->bt_init_traffic_load;
898 else
899 priv->bt_traffic_load = 0;
900 priv->bt_full_concurrent = false;
901 priv->bt_ci_compliance = 0;
902
903 /* Wipe out the EXIT_PENDING status bit if we are not actually
904 * exiting the module */
905 if (!exit_pending)
906 clear_bit(STATUS_EXIT_PENDING, &priv->status);
907
908 if (priv->mac80211_registered)
909 ieee80211_stop_queues(priv->hw);
910
911 priv->ucode_loaded = false;
912 iwl_trans_stop_device(trans(priv));
913
914 /* Clear out all status bits but a few that are stable across reset */
915 priv->status &= test_bit(STATUS_RF_KILL_HW, &priv->status) <<
916 STATUS_RF_KILL_HW |
917 test_bit(STATUS_GEO_CONFIGURED, &priv->status) <<
918 STATUS_GEO_CONFIGURED |
919 test_bit(STATUS_FW_ERROR, &priv->status) <<
920 STATUS_FW_ERROR |
921 test_bit(STATUS_EXIT_PENDING, &priv->status) <<
922 STATUS_EXIT_PENDING;
923
924 dev_kfree_skb(priv->beacon_skb);
925 priv->beacon_skb = NULL;
926 }
927
928 /*****************************************************************************
929 *
930 * Workqueue callbacks
931 *
932 *****************************************************************************/
933
934 static void iwl_bg_run_time_calib_work(struct work_struct *work)
935 {
936 struct iwl_priv *priv = container_of(work, struct iwl_priv,
937 run_time_calib_work);
938
939 mutex_lock(&priv->mutex);
940
941 if (test_bit(STATUS_EXIT_PENDING, &priv->status) ||
942 test_bit(STATUS_SCANNING, &priv->status)) {
943 mutex_unlock(&priv->mutex);
944 return;
945 }
946
947 if (priv->start_calib) {
948 iwl_chain_noise_calibration(priv);
949 iwl_sensitivity_calibration(priv);
950 }
951
952 mutex_unlock(&priv->mutex);
953 }
954
955 void iwlagn_prepare_restart(struct iwl_priv *priv)
956 {
957 struct iwl_rxon_context *ctx;
958 bool bt_full_concurrent;
959 u8 bt_ci_compliance;
960 u8 bt_load;
961 u8 bt_status;
962 bool bt_is_sco;
963 int i;
964
965 lockdep_assert_held(&priv->mutex);
966
967 for_each_context(priv, ctx)
968 ctx->vif = NULL;
969 priv->is_open = 0;
970
971 /*
972 * __iwl_down() will clear the BT status variables,
973 * which is correct, but when we restart we really
974 * want to keep them so restore them afterwards.
975 *
976 * The restart process will later pick them up and
977 * re-configure the hw when we reconfigure the BT
978 * command.
979 */
980 bt_full_concurrent = priv->bt_full_concurrent;
981 bt_ci_compliance = priv->bt_ci_compliance;
982 bt_load = priv->bt_traffic_load;
983 bt_status = priv->bt_status;
984 bt_is_sco = priv->bt_is_sco;
985
986 iwl_down(priv);
987
988 priv->bt_full_concurrent = bt_full_concurrent;
989 priv->bt_ci_compliance = bt_ci_compliance;
990 priv->bt_traffic_load = bt_load;
991 priv->bt_status = bt_status;
992 priv->bt_is_sco = bt_is_sco;
993
994 /* reset all queues */
995 for (i = 0; i < IEEE80211_NUM_ACS; i++)
996 atomic_set(&priv->ac_stop_count[i], 0);
997
998 for (i = IWLAGN_FIRST_AMPDU_QUEUE; i < IWL_MAX_HW_QUEUES; i++)
999 priv->queue_to_ac[i] = IWL_INVALID_AC;
1000
1001 memset(priv->agg_q_alloc, 0, sizeof(priv->agg_q_alloc));
1002 }
1003
1004 static void iwl_bg_restart(struct work_struct *data)
1005 {
1006 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1007
1008 if (test_bit(STATUS_EXIT_PENDING, &priv->status))
1009 return;
1010
1011 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->status)) {
1012 mutex_lock(&priv->mutex);
1013 iwlagn_prepare_restart(priv);
1014 mutex_unlock(&priv->mutex);
1015 iwl_cancel_deferred_work(priv);
1016 ieee80211_restart_hw(priv->hw);
1017 } else {
1018 WARN_ON(1);
1019 }
1020 }
1021
1022
1023
1024
1025 void iwlagn_disable_roc(struct iwl_priv *priv)
1026 {
1027 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
1028
1029 lockdep_assert_held(&priv->mutex);
1030
1031 if (!priv->hw_roc_setup)
1032 return;
1033
1034 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
1035 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1036
1037 priv->hw_roc_channel = NULL;
1038
1039 memset(ctx->staging.node_addr, 0, ETH_ALEN);
1040
1041 iwlagn_commit_rxon(priv, ctx);
1042
1043 ctx->is_active = false;
1044 priv->hw_roc_setup = false;
1045 }
1046
1047 static void iwlagn_disable_roc_work(struct work_struct *work)
1048 {
1049 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1050 hw_roc_disable_work.work);
1051
1052 mutex_lock(&priv->mutex);
1053 iwlagn_disable_roc(priv);
1054 mutex_unlock(&priv->mutex);
1055 }
1056
1057 /*****************************************************************************
1058 *
1059 * driver setup and teardown
1060 *
1061 *****************************************************************************/
1062
1063 static void iwl_setup_deferred_work(struct iwl_priv *priv)
1064 {
1065 priv->workqueue = create_singlethread_workqueue(DRV_NAME);
1066
1067 INIT_WORK(&priv->restart, iwl_bg_restart);
1068 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
1069 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
1070 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
1071 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
1072 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
1073 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
1074 iwlagn_disable_roc_work);
1075
1076 iwl_setup_scan_deferred_work(priv);
1077
1078 if (cfg(priv)->bt_params)
1079 iwlagn_bt_setup_deferred_work(priv);
1080
1081 init_timer(&priv->statistics_periodic);
1082 priv->statistics_periodic.data = (unsigned long)priv;
1083 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
1084
1085 init_timer(&priv->ucode_trace);
1086 priv->ucode_trace.data = (unsigned long)priv;
1087 priv->ucode_trace.function = iwl_bg_ucode_trace;
1088 }
1089
1090 void iwl_cancel_deferred_work(struct iwl_priv *priv)
1091 {
1092 if (cfg(priv)->bt_params)
1093 iwlagn_bt_cancel_deferred_work(priv);
1094
1095 cancel_work_sync(&priv->run_time_calib_work);
1096 cancel_work_sync(&priv->beacon_update);
1097
1098 iwl_cancel_scan_deferred_work(priv);
1099
1100 cancel_work_sync(&priv->bt_full_concurrency);
1101 cancel_work_sync(&priv->bt_runtime_config);
1102 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
1103
1104 del_timer_sync(&priv->statistics_periodic);
1105 del_timer_sync(&priv->ucode_trace);
1106 }
1107
1108 static void iwl_init_hw_rates(struct ieee80211_rate *rates)
1109 {
1110 int i;
1111
1112 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
1113 rates[i].bitrate = iwl_rates[i].ieee * 5;
1114 rates[i].hw_value = i; /* Rate scaling will work on indexes */
1115 rates[i].hw_value_short = i;
1116 rates[i].flags = 0;
1117 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
1118 /*
1119 * If CCK != 1M then set short preamble rate flag.
1120 */
1121 rates[i].flags |=
1122 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
1123 0 : IEEE80211_RATE_SHORT_PREAMBLE;
1124 }
1125 }
1126 }
1127
1128 #define MAX_BIT_RATE_40_MHZ 150 /* Mbps */
1129 #define MAX_BIT_RATE_20_MHZ 72 /* Mbps */
1130 static void iwl_init_ht_hw_capab(const struct iwl_priv *priv,
1131 struct ieee80211_sta_ht_cap *ht_info,
1132 enum ieee80211_band band)
1133 {
1134 u16 max_bit_rate = 0;
1135 u8 rx_chains_num = priv->hw_params.rx_chains_num;
1136 u8 tx_chains_num = priv->hw_params.tx_chains_num;
1137
1138 ht_info->cap = 0;
1139 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1140
1141 ht_info->ht_supported = true;
1142
1143 if (cfg(priv)->ht_params &&
1144 cfg(priv)->ht_params->ht_greenfield_support)
1145 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1146 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1147 max_bit_rate = MAX_BIT_RATE_20_MHZ;
1148 if (priv->hw_params.ht40_channel & BIT(band)) {
1149 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1150 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1151 ht_info->mcs.rx_mask[4] = 0x01;
1152 max_bit_rate = MAX_BIT_RATE_40_MHZ;
1153 }
1154
1155 if (iwlagn_mod_params.amsdu_size_8K)
1156 ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU;
1157
1158 ht_info->ampdu_factor = CFG_HT_RX_AMPDU_FACTOR_DEF;
1159 ht_info->ampdu_density = CFG_HT_MPDU_DENSITY_DEF;
1160
1161 ht_info->mcs.rx_mask[0] = 0xFF;
1162 if (rx_chains_num >= 2)
1163 ht_info->mcs.rx_mask[1] = 0xFF;
1164 if (rx_chains_num >= 3)
1165 ht_info->mcs.rx_mask[2] = 0xFF;
1166
1167 /* Highest supported Rx data rate */
1168 max_bit_rate *= rx_chains_num;
1169 WARN_ON(max_bit_rate & ~IEEE80211_HT_MCS_RX_HIGHEST_MASK);
1170 ht_info->mcs.rx_highest = cpu_to_le16(max_bit_rate);
1171
1172 /* Tx MCS capabilities */
1173 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1174 if (tx_chains_num != rx_chains_num) {
1175 ht_info->mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
1176 ht_info->mcs.tx_params |= ((tx_chains_num - 1) <<
1177 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
1178 }
1179 }
1180
1181 /**
1182 * iwl_init_geos - Initialize mac80211's geo/channel info based from eeprom
1183 */
1184 static int iwl_init_geos(struct iwl_priv *priv)
1185 {
1186 struct iwl_channel_info *ch;
1187 struct ieee80211_supported_band *sband;
1188 struct ieee80211_channel *channels;
1189 struct ieee80211_channel *geo_ch;
1190 struct ieee80211_rate *rates;
1191 int i = 0;
1192 s8 max_tx_power = IWLAGN_TX_POWER_TARGET_POWER_MIN;
1193
1194 if (priv->bands[IEEE80211_BAND_2GHZ].n_bitrates ||
1195 priv->bands[IEEE80211_BAND_5GHZ].n_bitrates) {
1196 IWL_DEBUG_INFO(priv, "Geography modes already initialized.\n");
1197 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
1198 return 0;
1199 }
1200
1201 channels = kcalloc(priv->channel_count,
1202 sizeof(struct ieee80211_channel), GFP_KERNEL);
1203 if (!channels)
1204 return -ENOMEM;
1205
1206 rates = kcalloc(IWL_RATE_COUNT_LEGACY, sizeof(struct ieee80211_rate),
1207 GFP_KERNEL);
1208 if (!rates) {
1209 kfree(channels);
1210 return -ENOMEM;
1211 }
1212
1213 /* 5.2GHz channels start after the 2.4GHz channels */
1214 sband = &priv->bands[IEEE80211_BAND_5GHZ];
1215 sband->channels = &channels[ARRAY_SIZE(iwl_eeprom_band_1)];
1216 /* just OFDM */
1217 sband->bitrates = &rates[IWL_FIRST_OFDM_RATE];
1218 sband->n_bitrates = IWL_RATE_COUNT_LEGACY - IWL_FIRST_OFDM_RATE;
1219
1220 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)
1221 iwl_init_ht_hw_capab(priv, &sband->ht_cap,
1222 IEEE80211_BAND_5GHZ);
1223
1224 sband = &priv->bands[IEEE80211_BAND_2GHZ];
1225 sband->channels = channels;
1226 /* OFDM & CCK */
1227 sband->bitrates = rates;
1228 sband->n_bitrates = IWL_RATE_COUNT_LEGACY;
1229
1230 if (priv->hw_params.sku & EEPROM_SKU_CAP_11N_ENABLE)
1231 iwl_init_ht_hw_capab(priv, &sband->ht_cap,
1232 IEEE80211_BAND_2GHZ);
1233
1234 priv->ieee_channels = channels;
1235 priv->ieee_rates = rates;
1236
1237 for (i = 0; i < priv->channel_count; i++) {
1238 ch = &priv->channel_info[i];
1239
1240 /* FIXME: might be removed if scan is OK */
1241 if (!is_channel_valid(ch))
1242 continue;
1243
1244 sband = &priv->bands[ch->band];
1245
1246 geo_ch = &sband->channels[sband->n_channels++];
1247
1248 geo_ch->center_freq =
1249 ieee80211_channel_to_frequency(ch->channel, ch->band);
1250 geo_ch->max_power = ch->max_power_avg;
1251 geo_ch->max_antenna_gain = 0xff;
1252 geo_ch->hw_value = ch->channel;
1253
1254 if (is_channel_valid(ch)) {
1255 if (!(ch->flags & EEPROM_CHANNEL_IBSS))
1256 geo_ch->flags |= IEEE80211_CHAN_NO_IBSS;
1257
1258 if (!(ch->flags & EEPROM_CHANNEL_ACTIVE))
1259 geo_ch->flags |= IEEE80211_CHAN_PASSIVE_SCAN;
1260
1261 if (ch->flags & EEPROM_CHANNEL_RADAR)
1262 geo_ch->flags |= IEEE80211_CHAN_RADAR;
1263
1264 geo_ch->flags |= ch->ht40_extension_channel;
1265
1266 if (ch->max_power_avg > max_tx_power)
1267 max_tx_power = ch->max_power_avg;
1268 } else {
1269 geo_ch->flags |= IEEE80211_CHAN_DISABLED;
1270 }
1271
1272 IWL_DEBUG_INFO(priv, "Channel %d Freq=%d[%sGHz] %s flag=0x%X\n",
1273 ch->channel, geo_ch->center_freq,
1274 is_channel_a_band(ch) ? "5.2" : "2.4",
1275 geo_ch->flags & IEEE80211_CHAN_DISABLED ?
1276 "restricted" : "valid",
1277 geo_ch->flags);
1278 }
1279
1280 priv->tx_power_device_lmt = max_tx_power;
1281 priv->tx_power_user_lmt = max_tx_power;
1282 priv->tx_power_next = max_tx_power;
1283
1284 if ((priv->bands[IEEE80211_BAND_5GHZ].n_channels == 0) &&
1285 priv->hw_params.sku & EEPROM_SKU_CAP_BAND_52GHZ) {
1286 IWL_INFO(priv, "Incorrectly detected BG card as ABG. "
1287 "Please send your %s to maintainer.\n",
1288 trans(priv)->hw_id_str);
1289 priv->hw_params.sku &= ~EEPROM_SKU_CAP_BAND_52GHZ;
1290 }
1291
1292 IWL_INFO(priv, "Tunable channels: %d 802.11bg, %d 802.11a channels\n",
1293 priv->bands[IEEE80211_BAND_2GHZ].n_channels,
1294 priv->bands[IEEE80211_BAND_5GHZ].n_channels);
1295
1296 set_bit(STATUS_GEO_CONFIGURED, &priv->status);
1297
1298 return 0;
1299 }
1300
1301 /*
1302 * iwl_free_geos - undo allocations in iwl_init_geos
1303 */
1304 static void iwl_free_geos(struct iwl_priv *priv)
1305 {
1306 kfree(priv->ieee_channels);
1307 kfree(priv->ieee_rates);
1308 clear_bit(STATUS_GEO_CONFIGURED, &priv->status);
1309 }
1310
1311 static int iwl_init_drv(struct iwl_priv *priv)
1312 {
1313 int ret;
1314
1315 spin_lock_init(&priv->sta_lock);
1316
1317 mutex_init(&priv->mutex);
1318
1319 INIT_LIST_HEAD(&priv->calib_results);
1320
1321 priv->ieee_channels = NULL;
1322 priv->ieee_rates = NULL;
1323 priv->band = IEEE80211_BAND_2GHZ;
1324
1325 priv->plcp_delta_threshold =
1326 cfg(priv)->base_params->plcp_delta_threshold;
1327
1328 priv->iw_mode = NL80211_IFTYPE_STATION;
1329 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
1330 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
1331 priv->agg_tids_count = 0;
1332
1333 priv->ucode_owner = IWL_OWNERSHIP_DRIVER;
1334
1335 /* initialize force reset */
1336 priv->force_reset[IWL_RF_RESET].reset_duration =
1337 IWL_DELAY_NEXT_FORCE_RF_RESET;
1338 priv->force_reset[IWL_FW_RESET].reset_duration =
1339 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
1340
1341 priv->rx_statistics_jiffies = jiffies;
1342
1343 /* Choose which receivers/antennas to use */
1344 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
1345
1346 iwl_init_scan_params(priv);
1347
1348 /* init bt coex */
1349 if (cfg(priv)->bt_params &&
1350 cfg(priv)->bt_params->advanced_bt_coexist) {
1351 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1352 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1353 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1354 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
1355 priv->bt_duration = BT_DURATION_LIMIT_DEF;
1356 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
1357 }
1358
1359 ret = iwl_init_channel_map(priv);
1360 if (ret) {
1361 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
1362 goto err;
1363 }
1364
1365 ret = iwl_init_geos(priv);
1366 if (ret) {
1367 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
1368 goto err_free_channel_map;
1369 }
1370 iwl_init_hw_rates(priv->ieee_rates);
1371
1372 return 0;
1373
1374 err_free_channel_map:
1375 iwl_free_channel_map(priv);
1376 err:
1377 return ret;
1378 }
1379
1380 static void iwl_uninit_drv(struct iwl_priv *priv)
1381 {
1382 iwl_free_geos(priv);
1383 iwl_free_channel_map(priv);
1384 kfree(priv->scan_cmd);
1385 kfree(priv->beacon_cmd);
1386 kfree(rcu_dereference_raw(priv->noa_data));
1387 iwl_calib_free_results(priv);
1388 #ifdef CONFIG_IWLWIFI_DEBUGFS
1389 kfree(priv->wowlan_sram);
1390 #endif
1391 }
1392
1393 static void iwl_set_hw_params(struct iwl_priv *priv)
1394 {
1395 if (cfg(priv)->ht_params)
1396 priv->hw_params.use_rts_for_aggregation =
1397 cfg(priv)->ht_params->use_rts_for_aggregation;
1398
1399 if (iwlagn_mod_params.disable_11n & IWL_DISABLE_HT_ALL)
1400 priv->hw_params.sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
1401
1402 /* Device-specific setup */
1403 cfg(priv)->lib->set_hw_params(priv);
1404 }
1405
1406
1407
1408 static void iwl_debug_config(struct iwl_priv *priv)
1409 {
1410 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUG "
1411 #ifdef CONFIG_IWLWIFI_DEBUG
1412 "enabled\n");
1413 #else
1414 "disabled\n");
1415 #endif
1416 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEBUGFS "
1417 #ifdef CONFIG_IWLWIFI_DEBUGFS
1418 "enabled\n");
1419 #else
1420 "disabled\n");
1421 #endif
1422 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TRACING "
1423 #ifdef CONFIG_IWLWIFI_DEVICE_TRACING
1424 "enabled\n");
1425 #else
1426 "disabled\n");
1427 #endif
1428
1429 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_DEVICE_TESTMODE "
1430 #ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE
1431 "enabled\n");
1432 #else
1433 "disabled\n");
1434 #endif
1435 dev_printk(KERN_INFO, trans(priv)->dev, "CONFIG_IWLWIFI_P2P "
1436 #ifdef CONFIG_IWLWIFI_P2P
1437 "enabled\n");
1438 #else
1439 "disabled\n");
1440 #endif
1441 }
1442
1443 static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans,
1444 const struct iwl_fw *fw)
1445 {
1446 struct iwl_priv *priv;
1447 struct ieee80211_hw *hw;
1448 struct iwl_op_mode *op_mode;
1449 u16 num_mac;
1450 u32 ucode_flags;
1451 struct iwl_trans_config trans_cfg;
1452 static const u8 no_reclaim_cmds[] = {
1453 REPLY_RX_PHY_CMD,
1454 REPLY_RX,
1455 REPLY_RX_MPDU_CMD,
1456 REPLY_COMPRESSED_BA,
1457 STATISTICS_NOTIFICATION,
1458 REPLY_TX,
1459 };
1460 const u8 *q_to_ac;
1461 int n_q_to_ac;
1462 int i;
1463
1464 /************************
1465 * 1. Allocating HW data
1466 ************************/
1467 hw = iwl_alloc_all();
1468 if (!hw) {
1469 pr_err("%s: Cannot allocate network device\n",
1470 cfg(trans)->name);
1471 goto out;
1472 }
1473
1474 op_mode = hw->priv;
1475 op_mode->ops = &iwl_dvm_ops;
1476 priv = IWL_OP_MODE_GET_DVM(op_mode);
1477 priv->shrd = trans->shrd;
1478 priv->fw = fw;
1479
1480 /*
1481 * Populate the state variables that the transport layer needs
1482 * to know about.
1483 */
1484 trans_cfg.op_mode = op_mode;
1485 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
1486 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
1487 trans_cfg.rx_buf_size_8k = iwlagn_mod_params.amsdu_size_8K;
1488 if (!iwlagn_mod_params.wd_disable)
1489 trans_cfg.queue_watchdog_timeout =
1490 cfg(priv)->base_params->wd_timeout;
1491 else
1492 trans_cfg.queue_watchdog_timeout = IWL_WATCHHDOG_DISABLED;
1493
1494 ucode_flags = fw->ucode_capa.flags;
1495
1496 #ifndef CONFIG_IWLWIFI_P2P
1497 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1498 #endif
1499
1500 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) {
1501 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1502 trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1503 trans_cfg.queue_to_fifo = iwlagn_ipan_queue_to_tx_fifo;
1504 trans_cfg.n_queue_to_fifo =
1505 ARRAY_SIZE(iwlagn_ipan_queue_to_tx_fifo);
1506 q_to_ac = iwlagn_pan_queue_to_ac;
1507 n_q_to_ac = ARRAY_SIZE(iwlagn_pan_queue_to_ac);
1508 } else {
1509 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1510 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1511 trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
1512 trans_cfg.n_queue_to_fifo =
1513 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
1514 q_to_ac = iwlagn_bss_queue_to_ac;
1515 n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac);
1516 }
1517
1518 /* Configure transport layer */
1519 iwl_trans_configure(trans(priv), &trans_cfg);
1520
1521 /* At this point both hw and priv are allocated. */
1522
1523 SET_IEEE80211_DEV(priv->hw, trans(priv)->dev);
1524
1525 /* show what debugging capabilities we have */
1526 iwl_debug_config(priv);
1527
1528 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
1529
1530 /* is antenna coupling more than 35dB ? */
1531 priv->bt_ant_couple_ok =
1532 (iwlagn_mod_params.ant_coupling >
1533 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
1534 true : false;
1535
1536 /* enable/disable bt channel inhibition */
1537 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
1538 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
1539 (priv->bt_ch_announce) ? "On" : "Off");
1540
1541 if (iwl_alloc_traffic_mem(priv))
1542 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
1543
1544 /* these spin locks will be used in apm_ops.init and EEPROM access
1545 * we should init now
1546 */
1547 spin_lock_init(&trans(priv)->reg_lock);
1548 spin_lock_init(&priv->statistics.lock);
1549
1550 /***********************
1551 * 2. Read REV register
1552 ***********************/
1553 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
1554 cfg(priv)->name, trans(priv)->hw_rev);
1555
1556 if (iwl_trans_start_hw(trans(priv)))
1557 goto out_free_traffic_mem;
1558
1559 /*****************
1560 * 3. Read EEPROM
1561 *****************/
1562 /* Read the EEPROM */
1563 if (iwl_eeprom_init(trans(priv), trans(priv)->hw_rev)) {
1564 IWL_ERR(priv, "Unable to init EEPROM\n");
1565 goto out_free_traffic_mem;
1566 }
1567 /* Reset chip to save power until we load uCode during "up". */
1568 iwl_trans_stop_hw(trans(priv));
1569
1570 if (iwl_eeprom_check_version(priv))
1571 goto out_free_eeprom;
1572
1573 if (iwl_eeprom_init_hw_params(priv))
1574 goto out_free_eeprom;
1575
1576 /* extract MAC Address */
1577 iwl_eeprom_get_mac(priv->shrd, priv->addresses[0].addr);
1578 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
1579 priv->hw->wiphy->addresses = priv->addresses;
1580 priv->hw->wiphy->n_addresses = 1;
1581 num_mac = iwl_eeprom_query16(priv->shrd, EEPROM_NUM_MAC_ADDRESS);
1582 if (num_mac > 1) {
1583 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
1584 ETH_ALEN);
1585 priv->addresses[1].addr[5]++;
1586 priv->hw->wiphy->n_addresses++;
1587 }
1588
1589 /************************
1590 * 4. Setup HW constants
1591 ************************/
1592 iwl_set_hw_params(priv);
1593
1594 if (!(priv->hw_params.sku & EEPROM_SKU_CAP_IPAN_ENABLE)) {
1595 IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN");
1596 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1597 /*
1598 * if not PAN, then don't support P2P -- might be a uCode
1599 * packaging bug or due to the eeprom check above
1600 */
1601 ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1602 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1603 trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1604 trans_cfg.queue_to_fifo = iwlagn_default_queue_to_tx_fifo;
1605 trans_cfg.n_queue_to_fifo =
1606 ARRAY_SIZE(iwlagn_default_queue_to_tx_fifo);
1607 q_to_ac = iwlagn_bss_queue_to_ac;
1608 n_q_to_ac = ARRAY_SIZE(iwlagn_bss_queue_to_ac);
1609
1610 /* Configure transport layer again*/
1611 iwl_trans_configure(trans(priv), &trans_cfg);
1612 }
1613
1614 /*******************
1615 * 5. Setup priv
1616 *******************/
1617 for (i = 0; i < IEEE80211_NUM_ACS; i++)
1618 atomic_set(&priv->ac_stop_count[i], 0);
1619
1620 for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
1621 if (i < n_q_to_ac)
1622 priv->queue_to_ac[i] = q_to_ac[i];
1623 else
1624 priv->queue_to_ac[i] = IWL_INVALID_AC;
1625 }
1626
1627 WARN_ON(trans_cfg.queue_to_fifo[trans_cfg.cmd_queue] !=
1628 IWLAGN_CMD_FIFO_NUM);
1629
1630 if (iwl_init_drv(priv))
1631 goto out_free_eeprom;
1632
1633 /* At this point both hw and priv are initialized. */
1634
1635 /********************
1636 * 6. Setup services
1637 ********************/
1638 iwl_setup_deferred_work(priv);
1639 iwl_setup_rx_handlers(priv);
1640 iwl_testmode_init(priv);
1641
1642 iwl_power_initialize(priv);
1643 iwl_tt_initialize(priv);
1644
1645 snprintf(priv->hw->wiphy->fw_version,
1646 sizeof(priv->hw->wiphy->fw_version),
1647 "%s", fw->fw_version);
1648
1649 priv->new_scan_threshold_behaviour =
1650 !!(ucode_flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1651
1652 priv->phy_calib_chain_noise_reset_cmd =
1653 fw->ucode_capa.standard_phy_calibration_size;
1654 priv->phy_calib_chain_noise_gain_cmd =
1655 fw->ucode_capa.standard_phy_calibration_size + 1;
1656
1657 /* initialize all valid contexts */
1658 iwl_init_context(priv, ucode_flags);
1659
1660 /**************************************************
1661 * This is still part of probe() in a sense...
1662 *
1663 * 7. Setup and register with mac80211 and debugfs
1664 **************************************************/
1665 if (iwlagn_mac_setup_register(priv, &fw->ucode_capa))
1666 goto out_destroy_workqueue;
1667
1668 if (iwl_dbgfs_register(priv, DRV_NAME))
1669 IWL_ERR(priv,
1670 "failed to create debugfs files. Ignoring error\n");
1671
1672 return op_mode;
1673
1674 out_destroy_workqueue:
1675 destroy_workqueue(priv->workqueue);
1676 priv->workqueue = NULL;
1677 iwl_uninit_drv(priv);
1678 out_free_eeprom:
1679 iwl_eeprom_free(priv->shrd);
1680 out_free_traffic_mem:
1681 iwl_free_traffic_mem(priv);
1682 ieee80211_free_hw(priv->hw);
1683 out:
1684 op_mode = NULL;
1685 return op_mode;
1686 }
1687
1688 static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode)
1689 {
1690 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
1691
1692 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
1693
1694 iwl_dbgfs_unregister(priv);
1695
1696 iwl_testmode_cleanup(priv);
1697 iwlagn_mac_unregister(priv);
1698
1699 iwl_tt_exit(priv);
1700
1701 /*This will stop the queues, move the device to low power state */
1702 priv->ucode_loaded = false;
1703 iwl_trans_stop_device(trans(priv));
1704
1705 iwl_eeprom_free(priv->shrd);
1706
1707 /*netif_stop_queue(dev); */
1708 flush_workqueue(priv->workqueue);
1709
1710 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
1711 * priv->workqueue... so we can't take down the workqueue
1712 * until now... */
1713 destroy_workqueue(priv->workqueue);
1714 priv->workqueue = NULL;
1715 iwl_free_traffic_mem(priv);
1716
1717 iwl_uninit_drv(priv);
1718
1719 dev_kfree_skb(priv->beacon_skb);
1720
1721 ieee80211_free_hw(priv->hw);
1722 }
1723
1724 static const char * const desc_lookup_text[] = {
1725 "OK",
1726 "FAIL",
1727 "BAD_PARAM",
1728 "BAD_CHECKSUM",
1729 "NMI_INTERRUPT_WDG",
1730 "SYSASSERT",
1731 "FATAL_ERROR",
1732 "BAD_COMMAND",
1733 "HW_ERROR_TUNE_LOCK",
1734 "HW_ERROR_TEMPERATURE",
1735 "ILLEGAL_CHAN_FREQ",
1736 "VCC_NOT_STABLE",
1737 "FH_ERROR",
1738 "NMI_INTERRUPT_HOST",
1739 "NMI_INTERRUPT_ACTION_PT",
1740 "NMI_INTERRUPT_UNKNOWN",
1741 "UCODE_VERSION_MISMATCH",
1742 "HW_ERROR_ABS_LOCK",
1743 "HW_ERROR_CAL_LOCK_FAIL",
1744 "NMI_INTERRUPT_INST_ACTION_PT",
1745 "NMI_INTERRUPT_DATA_ACTION_PT",
1746 "NMI_TRM_HW_ER",
1747 "NMI_INTERRUPT_TRM",
1748 "NMI_INTERRUPT_BREAK_POINT",
1749 "DEBUG_0",
1750 "DEBUG_1",
1751 "DEBUG_2",
1752 "DEBUG_3",
1753 };
1754
1755 static struct { char *name; u8 num; } advanced_lookup[] = {
1756 { "NMI_INTERRUPT_WDG", 0x34 },
1757 { "SYSASSERT", 0x35 },
1758 { "UCODE_VERSION_MISMATCH", 0x37 },
1759 { "BAD_COMMAND", 0x38 },
1760 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
1761 { "FATAL_ERROR", 0x3D },
1762 { "NMI_TRM_HW_ERR", 0x46 },
1763 { "NMI_INTERRUPT_TRM", 0x4C },
1764 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
1765 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
1766 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
1767 { "NMI_INTERRUPT_HOST", 0x66 },
1768 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
1769 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
1770 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
1771 { "ADVANCED_SYSASSERT", 0 },
1772 };
1773
1774 static const char *desc_lookup(u32 num)
1775 {
1776 int i;
1777 int max = ARRAY_SIZE(desc_lookup_text);
1778
1779 if (num < max)
1780 return desc_lookup_text[num];
1781
1782 max = ARRAY_SIZE(advanced_lookup) - 1;
1783 for (i = 0; i < max; i++) {
1784 if (advanced_lookup[i].num == num)
1785 break;
1786 }
1787 return advanced_lookup[i].name;
1788 }
1789
1790 #define ERROR_START_OFFSET (1 * sizeof(u32))
1791 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
1792
1793 static void iwl_dump_nic_error_log(struct iwl_priv *priv)
1794 {
1795 struct iwl_trans *trans = trans(priv);
1796 u32 base;
1797 struct iwl_error_event_table table;
1798
1799 base = priv->device_pointers.error_event_table;
1800 if (priv->cur_ucode == IWL_UCODE_INIT) {
1801 if (!base)
1802 base = priv->fw->init_errlog_ptr;
1803 } else {
1804 if (!base)
1805 base = priv->fw->inst_errlog_ptr;
1806 }
1807
1808 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
1809 IWL_ERR(priv,
1810 "Not valid error log pointer 0x%08X for %s uCode\n",
1811 base,
1812 (priv->cur_ucode == IWL_UCODE_INIT)
1813 ? "Init" : "RT");
1814 return;
1815 }
1816
1817 /*TODO: Update dbgfs with ISR error stats obtained below */
1818 iwl_read_targ_mem_words(trans, base, &table, sizeof(table));
1819
1820 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
1821 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
1822 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
1823 priv->shrd->status, table.valid);
1824 }
1825
1826 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
1827 table.data1, table.data2, table.line,
1828 table.blink1, table.blink2, table.ilink1,
1829 table.ilink2, table.bcon_time, table.gp1,
1830 table.gp2, table.gp3, table.ucode_ver,
1831 table.hw_ver, table.brd_ver);
1832 IWL_ERR(priv, "0x%08X | %-28s\n", table.error_id,
1833 desc_lookup(table.error_id));
1834 IWL_ERR(priv, "0x%08X | uPc\n", table.pc);
1835 IWL_ERR(priv, "0x%08X | branchlink1\n", table.blink1);
1836 IWL_ERR(priv, "0x%08X | branchlink2\n", table.blink2);
1837 IWL_ERR(priv, "0x%08X | interruptlink1\n", table.ilink1);
1838 IWL_ERR(priv, "0x%08X | interruptlink2\n", table.ilink2);
1839 IWL_ERR(priv, "0x%08X | data1\n", table.data1);
1840 IWL_ERR(priv, "0x%08X | data2\n", table.data2);
1841 IWL_ERR(priv, "0x%08X | line\n", table.line);
1842 IWL_ERR(priv, "0x%08X | beacon time\n", table.bcon_time);
1843 IWL_ERR(priv, "0x%08X | tsf low\n", table.tsf_low);
1844 IWL_ERR(priv, "0x%08X | tsf hi\n", table.tsf_hi);
1845 IWL_ERR(priv, "0x%08X | time gp1\n", table.gp1);
1846 IWL_ERR(priv, "0x%08X | time gp2\n", table.gp2);
1847 IWL_ERR(priv, "0x%08X | time gp3\n", table.gp3);
1848 IWL_ERR(priv, "0x%08X | uCode version\n", table.ucode_ver);
1849 IWL_ERR(priv, "0x%08X | hw version\n", table.hw_ver);
1850 IWL_ERR(priv, "0x%08X | board version\n", table.brd_ver);
1851 IWL_ERR(priv, "0x%08X | hcmd\n", table.hcmd);
1852 IWL_ERR(priv, "0x%08X | isr0\n", table.isr0);
1853 IWL_ERR(priv, "0x%08X | isr1\n", table.isr1);
1854 IWL_ERR(priv, "0x%08X | isr2\n", table.isr2);
1855 IWL_ERR(priv, "0x%08X | isr3\n", table.isr3);
1856 IWL_ERR(priv, "0x%08X | isr4\n", table.isr4);
1857 IWL_ERR(priv, "0x%08X | isr_pref\n", table.isr_pref);
1858 IWL_ERR(priv, "0x%08X | wait_event\n", table.wait_event);
1859 IWL_ERR(priv, "0x%08X | l2p_control\n", table.l2p_control);
1860 IWL_ERR(priv, "0x%08X | l2p_duration\n", table.l2p_duration);
1861 IWL_ERR(priv, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
1862 IWL_ERR(priv, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
1863 IWL_ERR(priv, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
1864 IWL_ERR(priv, "0x%08X | timestamp\n", table.u_timestamp);
1865 IWL_ERR(priv, "0x%08X | flow_handler\n", table.flow_handler);
1866 }
1867
1868 #define EVENT_START_OFFSET (4 * sizeof(u32))
1869
1870 /**
1871 * iwl_print_event_log - Dump error event log to syslog
1872 *
1873 */
1874 static int iwl_print_event_log(struct iwl_priv *priv, u32 start_idx,
1875 u32 num_events, u32 mode,
1876 int pos, char **buf, size_t bufsz)
1877 {
1878 u32 i;
1879 u32 base; /* SRAM byte address of event log header */
1880 u32 event_size; /* 2 u32s, or 3 u32s if timestamp recorded */
1881 u32 ptr; /* SRAM byte address of log data */
1882 u32 ev, time, data; /* event log data */
1883 unsigned long reg_flags;
1884
1885 struct iwl_trans *trans = trans(priv);
1886
1887 if (num_events == 0)
1888 return pos;
1889
1890 base = priv->device_pointers.log_event_table;
1891 if (priv->cur_ucode == IWL_UCODE_INIT) {
1892 if (!base)
1893 base = priv->fw->init_evtlog_ptr;
1894 } else {
1895 if (!base)
1896 base = priv->fw->inst_evtlog_ptr;
1897 }
1898
1899 if (mode == 0)
1900 event_size = 2 * sizeof(u32);
1901 else
1902 event_size = 3 * sizeof(u32);
1903
1904 ptr = base + EVENT_START_OFFSET + (start_idx * event_size);
1905
1906 /* Make sure device is powered up for SRAM reads */
1907 spin_lock_irqsave(&trans->reg_lock, reg_flags);
1908 if (unlikely(!iwl_grab_nic_access(trans)))
1909 goto out_unlock;
1910
1911 /* Set starting address; reads will auto-increment */
1912 iwl_write32(trans, HBUS_TARG_MEM_RADDR, ptr);
1913
1914 /* "time" is actually "data" for mode 0 (no timestamp).
1915 * place event id # at far right for easier visual parsing. */
1916 for (i = 0; i < num_events; i++) {
1917 ev = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1918 time = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1919 if (mode == 0) {
1920 /* data, ev */
1921 if (bufsz) {
1922 pos += scnprintf(*buf + pos, bufsz - pos,
1923 "EVT_LOG:0x%08x:%04u\n",
1924 time, ev);
1925 } else {
1926 trace_iwlwifi_dev_ucode_event(trans->dev, 0,
1927 time, ev);
1928 IWL_ERR(priv, "EVT_LOG:0x%08x:%04u\n",
1929 time, ev);
1930 }
1931 } else {
1932 data = iwl_read32(trans, HBUS_TARG_MEM_RDAT);
1933 if (bufsz) {
1934 pos += scnprintf(*buf + pos, bufsz - pos,
1935 "EVT_LOGT:%010u:0x%08x:%04u\n",
1936 time, data, ev);
1937 } else {
1938 IWL_ERR(priv, "EVT_LOGT:%010u:0x%08x:%04u\n",
1939 time, data, ev);
1940 trace_iwlwifi_dev_ucode_event(trans->dev, time,
1941 data, ev);
1942 }
1943 }
1944 }
1945
1946 /* Allow device to power down */
1947 iwl_release_nic_access(trans);
1948 out_unlock:
1949 spin_unlock_irqrestore(&trans->reg_lock, reg_flags);
1950 return pos;
1951 }
1952
1953 /**
1954 * iwl_print_last_event_logs - Dump the newest # of event log to syslog
1955 */
1956 static int iwl_print_last_event_logs(struct iwl_priv *priv, u32 capacity,
1957 u32 num_wraps, u32 next_entry,
1958 u32 size, u32 mode,
1959 int pos, char **buf, size_t bufsz)
1960 {
1961 /*
1962 * display the newest DEFAULT_LOG_ENTRIES entries
1963 * i.e the entries just before the next ont that uCode would fill.
1964 */
1965 if (num_wraps) {
1966 if (next_entry < size) {
1967 pos = iwl_print_event_log(priv,
1968 capacity - (size - next_entry),
1969 size - next_entry, mode,
1970 pos, buf, bufsz);
1971 pos = iwl_print_event_log(priv, 0,
1972 next_entry, mode,
1973 pos, buf, bufsz);
1974 } else
1975 pos = iwl_print_event_log(priv, next_entry - size,
1976 size, mode, pos, buf, bufsz);
1977 } else {
1978 if (next_entry < size) {
1979 pos = iwl_print_event_log(priv, 0, next_entry,
1980 mode, pos, buf, bufsz);
1981 } else {
1982 pos = iwl_print_event_log(priv, next_entry - size,
1983 size, mode, pos, buf, bufsz);
1984 }
1985 }
1986 return pos;
1987 }
1988
1989 #define DEFAULT_DUMP_EVENT_LOG_ENTRIES (20)
1990
1991 int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log,
1992 char **buf, bool display)
1993 {
1994 u32 base; /* SRAM byte address of event log header */
1995 u32 capacity; /* event log capacity in # entries */
1996 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
1997 u32 num_wraps; /* # times uCode wrapped to top of log */
1998 u32 next_entry; /* index of next entry to be written by uCode */
1999 u32 size; /* # entries that we'll print */
2000 u32 logsize;
2001 int pos = 0;
2002 size_t bufsz = 0;
2003 struct iwl_trans *trans = trans(priv);
2004
2005 base = priv->device_pointers.log_event_table;
2006 if (priv->cur_ucode == IWL_UCODE_INIT) {
2007 logsize = priv->fw->init_evtlog_size;
2008 if (!base)
2009 base = priv->fw->init_evtlog_ptr;
2010 } else {
2011 logsize = priv->fw->inst_evtlog_size;
2012 if (!base)
2013 base = priv->fw->inst_evtlog_ptr;
2014 }
2015
2016 if (!iwlagn_hw_valid_rtc_data_addr(base)) {
2017 IWL_ERR(priv,
2018 "Invalid event log pointer 0x%08X for %s uCode\n",
2019 base,
2020 (priv->cur_ucode == IWL_UCODE_INIT)
2021 ? "Init" : "RT");
2022 return -EINVAL;
2023 }
2024
2025 /* event log header */
2026 capacity = iwl_read_targ_mem(trans, base);
2027 mode = iwl_read_targ_mem(trans, base + (1 * sizeof(u32)));
2028 num_wraps = iwl_read_targ_mem(trans, base + (2 * sizeof(u32)));
2029 next_entry = iwl_read_targ_mem(trans, base + (3 * sizeof(u32)));
2030
2031 if (capacity > logsize) {
2032 IWL_ERR(priv, "Log capacity %d is bogus, limit to %d "
2033 "entries\n", capacity, logsize);
2034 capacity = logsize;
2035 }
2036
2037 if (next_entry > logsize) {
2038 IWL_ERR(priv, "Log write index %d is bogus, limit to %d\n",
2039 next_entry, logsize);
2040 next_entry = logsize;
2041 }
2042
2043 size = num_wraps ? capacity : next_entry;
2044
2045 /* bail out if nothing in log */
2046 if (size == 0) {
2047 IWL_ERR(trans, "Start IWL Event Log Dump: nothing in log\n");
2048 return pos;
2049 }
2050
2051 #ifdef CONFIG_IWLWIFI_DEBUG
2052 if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log)
2053 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2054 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2055 #else
2056 size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES)
2057 ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size;
2058 #endif
2059 IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n",
2060 size);
2061
2062 #ifdef CONFIG_IWLWIFI_DEBUG
2063 if (display) {
2064 if (full_log)
2065 bufsz = capacity * 48;
2066 else
2067 bufsz = size * 48;
2068 *buf = kmalloc(bufsz, GFP_KERNEL);
2069 if (!*buf)
2070 return -ENOMEM;
2071 }
2072 if (iwl_have_debug_level(IWL_DL_FW_ERRORS) || full_log) {
2073 /*
2074 * if uCode has wrapped back to top of log,
2075 * start at the oldest entry,
2076 * i.e the next one that uCode would fill.
2077 */
2078 if (num_wraps)
2079 pos = iwl_print_event_log(priv, next_entry,
2080 capacity - next_entry, mode,
2081 pos, buf, bufsz);
2082 /* (then/else) start at top of log */
2083 pos = iwl_print_event_log(priv, 0,
2084 next_entry, mode, pos, buf, bufsz);
2085 } else
2086 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2087 next_entry, size, mode,
2088 pos, buf, bufsz);
2089 #else
2090 pos = iwl_print_last_event_logs(priv, capacity, num_wraps,
2091 next_entry, size, mode,
2092 pos, buf, bufsz);
2093 #endif
2094 return pos;
2095 }
2096
2097 static void iwl_nic_error(struct iwl_op_mode *op_mode)
2098 {
2099 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2100
2101 IWL_ERR(priv, "Loaded firmware version: %s\n",
2102 priv->fw->fw_version);
2103
2104 iwl_dump_nic_error_log(priv);
2105 iwl_dump_nic_event_log(priv, false, NULL, false);
2106
2107 iwlagn_fw_error(priv, false);
2108 }
2109
2110 static void iwl_cmd_queue_full(struct iwl_op_mode *op_mode)
2111 {
2112 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2113
2114 if (!iwl_check_for_ct_kill(priv)) {
2115 IWL_ERR(priv, "Restarting adapter queue is full\n");
2116 iwlagn_fw_error(priv, false);
2117 }
2118 }
2119
2120 static void iwl_nic_config(struct iwl_op_mode *op_mode)
2121 {
2122 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2123
2124 cfg(priv)->lib->nic_config(priv);
2125 }
2126
2127 static void iwl_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
2128 {
2129 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2130 int ac = priv->queue_to_ac[queue];
2131
2132 if (WARN_ON_ONCE(ac == IWL_INVALID_AC))
2133 return;
2134
2135 if (atomic_inc_return(&priv->ac_stop_count[ac]) > 1) {
2136 IWL_DEBUG_TX_QUEUES(priv,
2137 "queue %d (AC %d) already stopped\n",
2138 queue, ac);
2139 return;
2140 }
2141
2142 set_bit(ac, &priv->transport_queue_stop);
2143 ieee80211_stop_queue(priv->hw, ac);
2144 }
2145
2146 static void iwl_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
2147 {
2148 struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode);
2149 int ac = priv->queue_to_ac[queue];
2150
2151 if (WARN_ON_ONCE(ac == IWL_INVALID_AC))
2152 return;
2153
2154 if (atomic_dec_return(&priv->ac_stop_count[ac]) > 0) {
2155 IWL_DEBUG_TX_QUEUES(priv,
2156 "queue %d (AC %d) already awake\n",
2157 queue, ac);
2158 return;
2159 }
2160
2161 clear_bit(ac, &priv->transport_queue_stop);
2162
2163 if (!priv->passive_no_rx)
2164 ieee80211_wake_queue(priv->hw, ac);
2165 }
2166
2167 void iwlagn_lift_passive_no_rx(struct iwl_priv *priv)
2168 {
2169 int ac;
2170
2171 if (!priv->passive_no_rx)
2172 return;
2173
2174 for (ac = IEEE80211_AC_VO; ac < IEEE80211_NUM_ACS; ac++) {
2175 if (!test_bit(ac, &priv->transport_queue_stop)) {
2176 IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d");
2177 ieee80211_wake_queue(priv->hw, ac);
2178 } else {
2179 IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d");
2180 }
2181 }
2182
2183 priv->passive_no_rx = false;
2184 }
2185
2186 const struct iwl_op_mode_ops iwl_dvm_ops = {
2187 .start = iwl_op_mode_dvm_start,
2188 .stop = iwl_op_mode_dvm_stop,
2189 .rx = iwl_rx_dispatch,
2190 .queue_full = iwl_stop_sw_queue,
2191 .queue_not_full = iwl_wake_sw_queue,
2192 .hw_rf_kill = iwl_set_hw_rfkill_state,
2193 .free_skb = iwl_free_skb,
2194 .nic_error = iwl_nic_error,
2195 .cmd_queue_full = iwl_cmd_queue_full,
2196 .nic_config = iwl_nic_config,
2197 };
2198
2199 /*****************************************************************************
2200 *
2201 * driver and module entry point
2202 *
2203 *****************************************************************************/
2204
2205 struct kmem_cache *iwl_tx_cmd_pool;
2206
2207 static int __init iwl_init(void)
2208 {
2209
2210 int ret;
2211 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
2212 pr_info(DRV_COPYRIGHT "\n");
2213
2214 iwl_tx_cmd_pool = kmem_cache_create("iwl_dev_cmd",
2215 sizeof(struct iwl_device_cmd),
2216 sizeof(void *), 0, NULL);
2217 if (!iwl_tx_cmd_pool)
2218 return -ENOMEM;
2219
2220 ret = iwlagn_rate_control_register();
2221 if (ret) {
2222 pr_err("Unable to register rate control algorithm: %d\n", ret);
2223 goto error_rc_register;
2224 }
2225
2226 ret = iwl_pci_register_driver();
2227 if (ret)
2228 goto error_pci_register;
2229 return ret;
2230
2231 error_pci_register:
2232 iwlagn_rate_control_unregister();
2233 error_rc_register:
2234 kmem_cache_destroy(iwl_tx_cmd_pool);
2235 return ret;
2236 }
2237
2238 static void __exit iwl_exit(void)
2239 {
2240 iwl_pci_unregister_driver();
2241 iwlagn_rate_control_unregister();
2242 kmem_cache_destroy(iwl_tx_cmd_pool);
2243 }
2244
2245 module_exit(iwl_exit);
2246 module_init(iwl_init);
2247
2248 #ifdef CONFIG_IWLWIFI_DEBUG
2249 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
2250 S_IRUGO | S_IWUSR);
2251 MODULE_PARM_DESC(debug, "debug output mask");
2252 #endif
2253
2254 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
2255 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
2256 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, uint, S_IRUGO);
2257 MODULE_PARM_DESC(11n_disable,
2258 "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX");
2259 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
2260 int, S_IRUGO);
2261 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
2262 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
2263 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
2264
2265 module_param_named(ucode_alternative,
2266 iwlagn_mod_params.wanted_ucode_alternative,
2267 int, S_IRUGO);
2268 MODULE_PARM_DESC(ucode_alternative,
2269 "specify ucode alternative to use from ucode file");
2270
2271 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
2272 int, S_IRUGO);
2273 MODULE_PARM_DESC(antenna_coupling,
2274 "specify antenna coupling in dB (defualt: 0 dB)");
2275
2276 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
2277 bool, S_IRUGO);
2278 MODULE_PARM_DESC(bt_ch_inhibition,
2279 "Enable BT channel inhibition (default: enable)");
2280
2281 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
2282 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
2283
2284 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
2285 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
2286
2287 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, int, S_IRUGO);
2288 MODULE_PARM_DESC(wd_disable,
2289 "Disable stuck queue watchdog timer 0=system default, "
2290 "1=disable, 2=enable (default: 0)");
2291
2292 /*
2293 * set bt_coex_active to true, uCode will do kill/defer
2294 * every time the priority line is asserted (BT is sending signals on the
2295 * priority line in the PCIx).
2296 * set bt_coex_active to false, uCode will ignore the BT activity and
2297 * perform the normal operation
2298 *
2299 * User might experience transmit issue on some platform due to WiFi/BT
2300 * co-exist problem. The possible behaviors are:
2301 * Able to scan and finding all the available AP
2302 * Not able to associate with any AP
2303 * On those platforms, WiFi communication can be restored by set
2304 * "bt_coex_active" module parameter to "false"
2305 *
2306 * default: bt_coex_active = true (BT_COEX_ENABLE)
2307 */
2308 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
2309 bool, S_IRUGO);
2310 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
2311
2312 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
2313 MODULE_PARM_DESC(led_mode, "0=system default, "
2314 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
2315
2316 module_param_named(power_save, iwlagn_mod_params.power_save,
2317 bool, S_IRUGO);
2318 MODULE_PARM_DESC(power_save,
2319 "enable WiFi power management (default: disable)");
2320
2321 module_param_named(power_level, iwlagn_mod_params.power_level,
2322 int, S_IRUGO);
2323 MODULE_PARM_DESC(power_level,
2324 "default power save level (range from 1 - 5, default: 1)");
2325
2326 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
2327 bool, S_IRUGO);
2328 MODULE_PARM_DESC(auto_agg,
2329 "enable agg w/o check traffic load (default: enable)");
2330
2331 /*
2332 * For now, keep using power level 1 instead of automatically
2333 * adjusting ...
2334 */
2335 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
2336 bool, S_IRUGO);
2337 MODULE_PARM_DESC(no_sleep_autoadjust,
2338 "don't automatically adjust sleep level "
2339 "according to maximum network latency (default: true)");
Linux kernel - Deliverables
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