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iwlagn: iwl_tid_data moves to iwl-shared
[linux-2.6/btrfs-unstable.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
blob1cf36783c1c365dcd7eb952898cce4112bc99c87
1 /******************************************************************************
2 *
3 * Copyright(c) 2003 - 2011 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 #include <linux/kernel.h>
30 #include <linux/module.h>
31 #include <linux/init.h>
32 #include <linux/slab.h>
33 #include <linux/dma-mapping.h>
34 #include <linux/delay.h>
35 #include <linux/sched.h>
36 #include <linux/skbuff.h>
37 #include <linux/netdevice.h>
38 #include <linux/firmware.h>
39 #include <linux/etherdevice.h>
40 #include <linux/if_arp.h>
41
42 #include <net/mac80211.h>
43
44 #include <asm/div64.h>
45
46 #include "iwl-eeprom.h"
47 #include "iwl-dev.h"
48 #include "iwl-core.h"
49 #include "iwl-io.h"
50 #include "iwl-helpers.h"
51 #include "iwl-sta.h"
52 #include "iwl-agn-calib.h"
53 #include "iwl-agn.h"
54 #include "iwl-shared.h"
55 #include "iwl-bus.h"
56 #include "iwl-trans.h"
57
58 /******************************************************************************
59 *
60 * module boiler plate
61 *
62 ******************************************************************************/
63
64 /*
65 * module name, copyright, version, etc.
66 */
67 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
68
69 #ifdef CONFIG_IWLWIFI_DEBUG
70 #define VD "d"
71 #else
72 #define VD
73 #endif
74
75 #define DRV_VERSION IWLWIFI_VERSION VD
76
77
78 MODULE_DESCRIPTION(DRV_DESCRIPTION);
79 MODULE_VERSION(DRV_VERSION);
80 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
81 MODULE_LICENSE("GPL");
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->shrd->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_trans_send_cmd(trans(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->shrd->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->shrd->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->shrd->status))
251 return;
252
253 /* dont send host command if rf-kill is on */
254 if (!iwl_is_ready_rf(priv->shrd))
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->shrd->mutex);
266
267 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
268 goto out;
269
270 /* dont send host command if rf-kill is on */
271 if (!iwl_is_ready_rf(priv->shrd))
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->shrd->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->shrd->status))
307 return;
308
309 /* dont send host command if rf-kill is on */
310 if (!iwl_is_ready_rf(priv->shrd))
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 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(&bus(priv)->reg_lock, reg_flags);
333 if (iwl_grab_nic_access(bus(priv))) {
334 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
335 return;
336 }
337
338 /* Set starting address; reads will auto-increment */
339 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr);
340 rmb();
341
342 /*
343 * "time" is actually "data" for mode 0 (no timestamp).
344 * place event id # at far right for easier visual parsing.
345 */
346 for (i = 0; i < num_events; i++) {
347 ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
348 time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
349 if (mode == 0) {
350 trace_iwlwifi_dev_ucode_cont_event(priv,
351 0, time, ev);
352 } else {
353 data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
354 trace_iwlwifi_dev_ucode_cont_event(priv,
355 time, data, ev);
356 }
357 }
358 /* Allow device to power down */
359 iwl_release_nic_access(bus(priv));
360 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
361 }
362
363 static void iwl_continuous_event_trace(struct iwl_priv *priv)
364 {
365 u32 capacity; /* event log capacity in # entries */
366 u32 base; /* SRAM byte address of event log header */
367 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
368 u32 num_wraps; /* # times uCode wrapped to top of log */
369 u32 next_entry; /* index of next entry to be written by uCode */
370
371 base = priv->device_pointers.error_event_table;
372 if (iwlagn_hw_valid_rtc_data_addr(base)) {
373 capacity = iwl_read_targ_mem(bus(priv), base);
374 num_wraps = iwl_read_targ_mem(bus(priv),
375 base + (2 * sizeof(u32)));
376 mode = iwl_read_targ_mem(bus(priv), base + (1 * sizeof(u32)));
377 next_entry = iwl_read_targ_mem(bus(priv),
378 base + (3 * sizeof(u32)));
379 } else
380 return;
381
382 if (num_wraps == priv->event_log.num_wraps) {
383 iwl_print_cont_event_trace(priv,
384 base, priv->event_log.next_entry,
385 next_entry - priv->event_log.next_entry,
386 mode);
387 priv->event_log.non_wraps_count++;
388 } else {
389 if ((num_wraps - priv->event_log.num_wraps) > 1)
390 priv->event_log.wraps_more_count++;
391 else
392 priv->event_log.wraps_once_count++;
393 trace_iwlwifi_dev_ucode_wrap_event(priv,
394 num_wraps - priv->event_log.num_wraps,
395 next_entry, priv->event_log.next_entry);
396 if (next_entry < priv->event_log.next_entry) {
397 iwl_print_cont_event_trace(priv, base,
398 priv->event_log.next_entry,
399 capacity - priv->event_log.next_entry,
400 mode);
401
402 iwl_print_cont_event_trace(priv, base, 0,
403 next_entry, mode);
404 } else {
405 iwl_print_cont_event_trace(priv, base,
406 next_entry, capacity - next_entry,
407 mode);
408
409 iwl_print_cont_event_trace(priv, base, 0,
410 next_entry, mode);
411 }
412 }
413 priv->event_log.num_wraps = num_wraps;
414 priv->event_log.next_entry = next_entry;
415 }
416
417 /**
418 * iwl_bg_ucode_trace - Timer callback to log ucode event
419 *
420 * The timer is continually set to execute every
421 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
422 * this function is to perform continuous uCode event logging operation
423 * if enabled
424 */
425 static void iwl_bg_ucode_trace(unsigned long data)
426 {
427 struct iwl_priv *priv = (struct iwl_priv *)data;
428
429 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
430 return;
431
432 if (priv->event_log.ucode_trace) {
433 iwl_continuous_event_trace(priv);
434 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
435 mod_timer(&priv->ucode_trace,
436 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
437 }
438 }
439
440 static void iwl_bg_tx_flush(struct work_struct *work)
441 {
442 struct iwl_priv *priv =
443 container_of(work, struct iwl_priv, tx_flush);
444
445 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
446 return;
447
448 /* do nothing if rf-kill is on */
449 if (!iwl_is_ready_rf(priv->shrd))
450 return;
451
452 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
453 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
454 }
455
456 /*****************************************************************************
457 *
458 * sysfs attributes
459 *
460 *****************************************************************************/
461
462 #ifdef CONFIG_IWLWIFI_DEBUG
463
464 /*
465 * The following adds a new attribute to the sysfs representation
466 * of this device driver (i.e. a new file in /sys/class/net/wlan0/device/)
467 * used for controlling the debug level.
468 *
469 * See the level definitions in iwl for details.
470 *
471 * The debug_level being managed using sysfs below is a per device debug
472 * level that is used instead of the global debug level if it (the per
473 * device debug level) is set.
474 */
475 static ssize_t show_debug_level(struct device *d,
476 struct device_attribute *attr, char *buf)
477 {
478 struct iwl_shared *shrd = dev_get_drvdata(d);
479 return sprintf(buf, "0x%08X\n", iwl_get_debug_level(shrd));
480 }
481 static ssize_t store_debug_level(struct device *d,
482 struct device_attribute *attr,
483 const char *buf, size_t count)
484 {
485 struct iwl_shared *shrd = dev_get_drvdata(d);
486 struct iwl_priv *priv = shrd->priv;
487 unsigned long val;
488 int ret;
489
490 ret = strict_strtoul(buf, 0, &val);
491 if (ret)
492 IWL_ERR(priv, "%s is not in hex or decimal form.\n", buf);
493 else {
494 shrd->dbg_level_dev = val;
495 if (iwl_alloc_traffic_mem(priv))
496 IWL_ERR(shrd->priv,
497 "Not enough memory to generate traffic log\n");
498 }
499 return strnlen(buf, count);
500 }
501
502 static DEVICE_ATTR(debug_level, S_IWUSR | S_IRUGO,
503 show_debug_level, store_debug_level);
504
505
506 #endif /* CONFIG_IWLWIFI_DEBUG */
507
508
509 static ssize_t show_temperature(struct device *d,
510 struct device_attribute *attr, char *buf)
511 {
512 struct iwl_shared *shrd = dev_get_drvdata(d);
513 struct iwl_priv *priv = shrd->priv;
514
515 if (!iwl_is_alive(priv->shrd))
516 return -EAGAIN;
517
518 return sprintf(buf, "%d\n", priv->temperature);
519 }
520
521 static DEVICE_ATTR(temperature, S_IRUGO, show_temperature, NULL);
522
523 static ssize_t show_tx_power(struct device *d,
524 struct device_attribute *attr, char *buf)
525 {
526 struct iwl_priv *priv = dev_get_drvdata(d);
527
528 if (!iwl_is_ready_rf(priv->shrd))
529 return sprintf(buf, "off\n");
530 else
531 return sprintf(buf, "%d\n", priv->tx_power_user_lmt);
532 }
533
534 static ssize_t store_tx_power(struct device *d,
535 struct device_attribute *attr,
536 const char *buf, size_t count)
537 {
538 struct iwl_priv *priv = dev_get_drvdata(d);
539 unsigned long val;
540 int ret;
541
542 ret = strict_strtoul(buf, 10, &val);
543 if (ret)
544 IWL_INFO(priv, "%s is not in decimal form.\n", buf);
545 else {
546 ret = iwl_set_tx_power(priv, val, false);
547 if (ret)
548 IWL_ERR(priv, "failed setting tx power (0x%d).\n",
549 ret);
550 else
551 ret = count;
552 }
553 return ret;
554 }
555
556 static DEVICE_ATTR(tx_power, S_IWUSR | S_IRUGO, show_tx_power, store_tx_power);
557
558 static struct attribute *iwl_sysfs_entries[] = {
559 &dev_attr_temperature.attr,
560 &dev_attr_tx_power.attr,
561 #ifdef CONFIG_IWLWIFI_DEBUG
562 &dev_attr_debug_level.attr,
563 #endif
564 NULL
565 };
566
567 static struct attribute_group iwl_attribute_group = {
568 .name = NULL, /* put in device directory */
569 .attrs = iwl_sysfs_entries,
570 };
571
572 /******************************************************************************
573 *
574 * uCode download functions
575 *
576 ******************************************************************************/
577
578 static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc)
579 {
580 if (desc->v_addr)
581 dma_free_coherent(priv->bus->dev, desc->len,
582 desc->v_addr, desc->p_addr);
583 desc->v_addr = NULL;
584 desc->len = 0;
585 }
586
587 static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img)
588 {
589 iwl_free_fw_desc(priv, &img->code);
590 iwl_free_fw_desc(priv, &img->data);
591 }
592
593 static void iwl_dealloc_ucode(struct iwl_priv *priv)
594 {
595 iwl_free_fw_img(priv, &priv->ucode_rt);
596 iwl_free_fw_img(priv, &priv->ucode_init);
597 iwl_free_fw_img(priv, &priv->ucode_wowlan);
598 }
599
600 static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc,
601 const void *data, size_t len)
602 {
603 if (!len) {
604 desc->v_addr = NULL;
605 return -EINVAL;
606 }
607
608 desc->v_addr = dma_alloc_coherent(priv->bus->dev, len,
609 &desc->p_addr, GFP_KERNEL);
610 if (!desc->v_addr)
611 return -ENOMEM;
612
613 desc->len = len;
614 memcpy(desc->v_addr, data, len);
615 return 0;
616 }
617
618 static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
619 {
620 static const u8 iwlagn_bss_ac_to_fifo[] = {
621 IWL_TX_FIFO_VO,
622 IWL_TX_FIFO_VI,
623 IWL_TX_FIFO_BE,
624 IWL_TX_FIFO_BK,
625 };
626 static const u8 iwlagn_bss_ac_to_queue[] = {
627 0, 1, 2, 3,
628 };
629 static const u8 iwlagn_pan_ac_to_fifo[] = {
630 IWL_TX_FIFO_VO_IPAN,
631 IWL_TX_FIFO_VI_IPAN,
632 IWL_TX_FIFO_BE_IPAN,
633 IWL_TX_FIFO_BK_IPAN,
634 };
635 static const u8 iwlagn_pan_ac_to_queue[] = {
636 7, 6, 5, 4,
637 };
638 int i;
639
640 /*
641 * The default context is always valid,
642 * the PAN context depends on uCode.
643 */
644 priv->valid_contexts = BIT(IWL_RXON_CTX_BSS);
645 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
646 priv->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
647
648 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
649 priv->contexts[i].ctxid = i;
650
651 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
652 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
653 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
654 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
655 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
656 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
657 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
658 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
659 priv->contexts[IWL_RXON_CTX_BSS].ac_to_fifo = iwlagn_bss_ac_to_fifo;
660 priv->contexts[IWL_RXON_CTX_BSS].ac_to_queue = iwlagn_bss_ac_to_queue;
661 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
662 BIT(NL80211_IFTYPE_ADHOC);
663 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
664 BIT(NL80211_IFTYPE_STATION);
665 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
666 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
667 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
668 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
669
670 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
671 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
672 REPLY_WIPAN_RXON_TIMING;
673 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
674 REPLY_WIPAN_RXON_ASSOC;
675 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
676 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
677 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
678 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
679 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
680 priv->contexts[IWL_RXON_CTX_PAN].ac_to_fifo = iwlagn_pan_ac_to_fifo;
681 priv->contexts[IWL_RXON_CTX_PAN].ac_to_queue = iwlagn_pan_ac_to_queue;
682 priv->contexts[IWL_RXON_CTX_PAN].mcast_queue = IWL_IPAN_MCAST_QUEUE;
683 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
684 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
685
686 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
687 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
688 BIT(NL80211_IFTYPE_P2P_CLIENT) |
689 BIT(NL80211_IFTYPE_P2P_GO);
690
691 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
692 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
693 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
694
695 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
696 }
697
698
699 struct iwlagn_ucode_capabilities {
700 u32 max_probe_length;
701 u32 standard_phy_calibration_size;
702 u32 flags;
703 };
704
705 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
706 static int iwl_mac_setup_register(struct iwl_priv *priv,
707 struct iwlagn_ucode_capabilities *capa);
708
709 #define UCODE_EXPERIMENTAL_INDEX 100
710 #define UCODE_EXPERIMENTAL_TAG "exp"
711
712 static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
713 {
714 const char *name_pre = priv->cfg->fw_name_pre;
715 char tag[8];
716
717 if (first) {
718 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
719 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
720 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
721 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
722 #endif
723 priv->fw_index = priv->cfg->ucode_api_max;
724 sprintf(tag, "%d", priv->fw_index);
725 } else {
726 priv->fw_index--;
727 sprintf(tag, "%d", priv->fw_index);
728 }
729
730 if (priv->fw_index < priv->cfg->ucode_api_min) {
731 IWL_ERR(priv, "no suitable firmware found!\n");
732 return -ENOENT;
733 }
734
735 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
736
737 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
738 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
739 ? "EXPERIMENTAL " : "",
740 priv->firmware_name);
741
742 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
743 priv->bus->dev,
744 GFP_KERNEL, priv, iwl_ucode_callback);
745 }
746
747 struct iwlagn_firmware_pieces {
748 const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
749 size_t inst_size, data_size, init_size, init_data_size,
750 wowlan_inst_size, wowlan_data_size;
751
752 u32 build;
753
754 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
755 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
756 };
757
758 static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
759 const struct firmware *ucode_raw,
760 struct iwlagn_firmware_pieces *pieces)
761 {
762 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
763 u32 api_ver, hdr_size;
764 const u8 *src;
765
766 priv->ucode_ver = le32_to_cpu(ucode->ver);
767 api_ver = IWL_UCODE_API(priv->ucode_ver);
768
769 switch (api_ver) {
770 default:
771 hdr_size = 28;
772 if (ucode_raw->size < hdr_size) {
773 IWL_ERR(priv, "File size too small!\n");
774 return -EINVAL;
775 }
776 pieces->build = le32_to_cpu(ucode->u.v2.build);
777 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
778 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
779 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
780 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
781 src = ucode->u.v2.data;
782 break;
783 case 0:
784 case 1:
785 case 2:
786 hdr_size = 24;
787 if (ucode_raw->size < hdr_size) {
788 IWL_ERR(priv, "File size too small!\n");
789 return -EINVAL;
790 }
791 pieces->build = 0;
792 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
793 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
794 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
795 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
796 src = ucode->u.v1.data;
797 break;
798 }
799
800 /* Verify size of file vs. image size info in file's header */
801 if (ucode_raw->size != hdr_size + pieces->inst_size +
802 pieces->data_size + pieces->init_size +
803 pieces->init_data_size) {
804
805 IWL_ERR(priv,
806 "uCode file size %d does not match expected size\n",
807 (int)ucode_raw->size);
808 return -EINVAL;
809 }
810
811 pieces->inst = src;
812 src += pieces->inst_size;
813 pieces->data = src;
814 src += pieces->data_size;
815 pieces->init = src;
816 src += pieces->init_size;
817 pieces->init_data = src;
818 src += pieces->init_data_size;
819
820 return 0;
821 }
822
823 static int iwlagn_load_firmware(struct iwl_priv *priv,
824 const struct firmware *ucode_raw,
825 struct iwlagn_firmware_pieces *pieces,
826 struct iwlagn_ucode_capabilities *capa)
827 {
828 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
829 struct iwl_ucode_tlv *tlv;
830 size_t len = ucode_raw->size;
831 const u8 *data;
832 int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
833 int tmp;
834 u64 alternatives;
835 u32 tlv_len;
836 enum iwl_ucode_tlv_type tlv_type;
837 const u8 *tlv_data;
838
839 if (len < sizeof(*ucode)) {
840 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
841 return -EINVAL;
842 }
843
844 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
845 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
846 le32_to_cpu(ucode->magic));
847 return -EINVAL;
848 }
849
850 /*
851 * Check which alternatives are present, and "downgrade"
852 * when the chosen alternative is not present, warning
853 * the user when that happens. Some files may not have
854 * any alternatives, so don't warn in that case.
855 */
856 alternatives = le64_to_cpu(ucode->alternatives);
857 tmp = wanted_alternative;
858 if (wanted_alternative > 63)
859 wanted_alternative = 63;
860 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
861 wanted_alternative--;
862 if (wanted_alternative && wanted_alternative != tmp)
863 IWL_WARN(priv,
864 "uCode alternative %d not available, choosing %d\n",
865 tmp, wanted_alternative);
866
867 priv->ucode_ver = le32_to_cpu(ucode->ver);
868 pieces->build = le32_to_cpu(ucode->build);
869 data = ucode->data;
870
871 len -= sizeof(*ucode);
872
873 while (len >= sizeof(*tlv)) {
874 u16 tlv_alt;
875
876 len -= sizeof(*tlv);
877 tlv = (void *)data;
878
879 tlv_len = le32_to_cpu(tlv->length);
880 tlv_type = le16_to_cpu(tlv->type);
881 tlv_alt = le16_to_cpu(tlv->alternative);
882 tlv_data = tlv->data;
883
884 if (len < tlv_len) {
885 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
886 len, tlv_len);
887 return -EINVAL;
888 }
889 len -= ALIGN(tlv_len, 4);
890 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
891
892 /*
893 * Alternative 0 is always valid.
894 *
895 * Skip alternative TLVs that are not selected.
896 */
897 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
898 continue;
899
900 switch (tlv_type) {
901 case IWL_UCODE_TLV_INST:
902 pieces->inst = tlv_data;
903 pieces->inst_size = tlv_len;
904 break;
905 case IWL_UCODE_TLV_DATA:
906 pieces->data = tlv_data;
907 pieces->data_size = tlv_len;
908 break;
909 case IWL_UCODE_TLV_INIT:
910 pieces->init = tlv_data;
911 pieces->init_size = tlv_len;
912 break;
913 case IWL_UCODE_TLV_INIT_DATA:
914 pieces->init_data = tlv_data;
915 pieces->init_data_size = tlv_len;
916 break;
917 case IWL_UCODE_TLV_BOOT:
918 IWL_ERR(priv, "Found unexpected BOOT ucode\n");
919 break;
920 case IWL_UCODE_TLV_PROBE_MAX_LEN:
921 if (tlv_len != sizeof(u32))
922 goto invalid_tlv_len;
923 capa->max_probe_length =
924 le32_to_cpup((__le32 *)tlv_data);
925 break;
926 case IWL_UCODE_TLV_PAN:
927 if (tlv_len)
928 goto invalid_tlv_len;
929 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
930 break;
931 case IWL_UCODE_TLV_FLAGS:
932 /* must be at least one u32 */
933 if (tlv_len < sizeof(u32))
934 goto invalid_tlv_len;
935 /* and a proper number of u32s */
936 if (tlv_len % sizeof(u32))
937 goto invalid_tlv_len;
938 /*
939 * This driver only reads the first u32 as
940 * right now no more features are defined,
941 * if that changes then either the driver
942 * will not work with the new firmware, or
943 * it'll not take advantage of new features.
944 */
945 capa->flags = le32_to_cpup((__le32 *)tlv_data);
946 break;
947 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
948 if (tlv_len != sizeof(u32))
949 goto invalid_tlv_len;
950 pieces->init_evtlog_ptr =
951 le32_to_cpup((__le32 *)tlv_data);
952 break;
953 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
954 if (tlv_len != sizeof(u32))
955 goto invalid_tlv_len;
956 pieces->init_evtlog_size =
957 le32_to_cpup((__le32 *)tlv_data);
958 break;
959 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
960 if (tlv_len != sizeof(u32))
961 goto invalid_tlv_len;
962 pieces->init_errlog_ptr =
963 le32_to_cpup((__le32 *)tlv_data);
964 break;
965 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
966 if (tlv_len != sizeof(u32))
967 goto invalid_tlv_len;
968 pieces->inst_evtlog_ptr =
969 le32_to_cpup((__le32 *)tlv_data);
970 break;
971 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
972 if (tlv_len != sizeof(u32))
973 goto invalid_tlv_len;
974 pieces->inst_evtlog_size =
975 le32_to_cpup((__le32 *)tlv_data);
976 break;
977 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
978 if (tlv_len != sizeof(u32))
979 goto invalid_tlv_len;
980 pieces->inst_errlog_ptr =
981 le32_to_cpup((__le32 *)tlv_data);
982 break;
983 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
984 if (tlv_len)
985 goto invalid_tlv_len;
986 priv->enhance_sensitivity_table = true;
987 break;
988 case IWL_UCODE_TLV_WOWLAN_INST:
989 pieces->wowlan_inst = tlv_data;
990 pieces->wowlan_inst_size = tlv_len;
991 break;
992 case IWL_UCODE_TLV_WOWLAN_DATA:
993 pieces->wowlan_data = tlv_data;
994 pieces->wowlan_data_size = tlv_len;
995 break;
996 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
997 if (tlv_len != sizeof(u32))
998 goto invalid_tlv_len;
999 capa->standard_phy_calibration_size =
1000 le32_to_cpup((__le32 *)tlv_data);
1001 break;
1002 default:
1003 IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type);
1004 break;
1005 }
1006 }
1007
1008 if (len) {
1009 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
1010 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
1011 return -EINVAL;
1012 }
1013
1014 return 0;
1015
1016 invalid_tlv_len:
1017 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1018 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
1019
1020 return -EINVAL;
1021 }
1022
1023 /**
1024 * iwl_ucode_callback - callback when firmware was loaded
1025 *
1026 * If loaded successfully, copies the firmware into buffers
1027 * for the card to fetch (via DMA).
1028 */
1029 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
1030 {
1031 struct iwl_priv *priv = context;
1032 struct iwl_ucode_header *ucode;
1033 int err;
1034 struct iwlagn_firmware_pieces pieces;
1035 const unsigned int api_max = priv->cfg->ucode_api_max;
1036 unsigned int api_ok = priv->cfg->ucode_api_ok;
1037 const unsigned int api_min = priv->cfg->ucode_api_min;
1038 u32 api_ver;
1039 char buildstr[25];
1040 u32 build;
1041 struct iwlagn_ucode_capabilities ucode_capa = {
1042 .max_probe_length = 200,
1043 .standard_phy_calibration_size =
1044 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
1045 };
1046
1047 if (!api_ok)
1048 api_ok = api_max;
1049
1050 memset(&pieces, 0, sizeof(pieces));
1051
1052 if (!ucode_raw) {
1053 if (priv->fw_index <= api_ok)
1054 IWL_ERR(priv,
1055 "request for firmware file '%s' failed.\n",
1056 priv->firmware_name);
1057 goto try_again;
1058 }
1059
1060 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
1061 priv->firmware_name, ucode_raw->size);
1062
1063 /* Make sure that we got at least the API version number */
1064 if (ucode_raw->size < 4) {
1065 IWL_ERR(priv, "File size way too small!\n");
1066 goto try_again;
1067 }
1068
1069 /* Data from ucode file: header followed by uCode images */
1070 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1071
1072 if (ucode->ver)
1073 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
1074 else
1075 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
1076 &ucode_capa);
1077
1078 if (err)
1079 goto try_again;
1080
1081 api_ver = IWL_UCODE_API(priv->ucode_ver);
1082 build = pieces.build;
1083
1084 /*
1085 * api_ver should match the api version forming part of the
1086 * firmware filename ... but we don't check for that and only rely
1087 * on the API version read from firmware header from here on forward
1088 */
1089 /* no api version check required for experimental uCode */
1090 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1091 if (api_ver < api_min || api_ver > api_max) {
1092 IWL_ERR(priv,
1093 "Driver unable to support your firmware API. "
1094 "Driver supports v%u, firmware is v%u.\n",
1095 api_max, api_ver);
1096 goto try_again;
1097 }
1098
1099 if (api_ver < api_ok) {
1100 if (api_ok != api_max)
1101 IWL_ERR(priv, "Firmware has old API version, "
1102 "expected v%u through v%u, got v%u.\n",
1103 api_ok, api_max, api_ver);
1104 else
1105 IWL_ERR(priv, "Firmware has old API version, "
1106 "expected v%u, got v%u.\n",
1107 api_max, api_ver);
1108 IWL_ERR(priv, "New firmware can be obtained from "
1109 "http://www.intellinuxwireless.org/.\n");
1110 }
1111 }
1112
1113 if (build)
1114 sprintf(buildstr, " build %u%s", build,
1115 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
1116 ? " (EXP)" : "");
1117 else
1118 buildstr[0] = '\0';
1119
1120 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
1121 IWL_UCODE_MAJOR(priv->ucode_ver),
1122 IWL_UCODE_MINOR(priv->ucode_ver),
1123 IWL_UCODE_API(priv->ucode_ver),
1124 IWL_UCODE_SERIAL(priv->ucode_ver),
1125 buildstr);
1126
1127 snprintf(priv->hw->wiphy->fw_version,
1128 sizeof(priv->hw->wiphy->fw_version),
1129 "%u.%u.%u.%u%s",
1130 IWL_UCODE_MAJOR(priv->ucode_ver),
1131 IWL_UCODE_MINOR(priv->ucode_ver),
1132 IWL_UCODE_API(priv->ucode_ver),
1133 IWL_UCODE_SERIAL(priv->ucode_ver),
1134 buildstr);
1135
1136 /*
1137 * For any of the failures below (before allocating pci memory)
1138 * we will try to load a version with a smaller API -- maybe the
1139 * user just got a corrupted version of the latest API.
1140 */
1141
1142 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1143 priv->ucode_ver);
1144 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1145 pieces.inst_size);
1146 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1147 pieces.data_size);
1148 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1149 pieces.init_size);
1150 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1151 pieces.init_data_size);
1152
1153 /* Verify that uCode images will fit in card's SRAM */
1154 if (pieces.inst_size > hw_params(priv).max_inst_size) {
1155 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1156 pieces.inst_size);
1157 goto try_again;
1158 }
1159
1160 if (pieces.data_size > hw_params(priv).max_data_size) {
1161 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1162 pieces.data_size);
1163 goto try_again;
1164 }
1165
1166 if (pieces.init_size > hw_params(priv).max_inst_size) {
1167 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1168 pieces.init_size);
1169 goto try_again;
1170 }
1171
1172 if (pieces.init_data_size > hw_params(priv).max_data_size) {
1173 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1174 pieces.init_data_size);
1175 goto try_again;
1176 }
1177
1178 /* Allocate ucode buffers for card's bus-master loading ... */
1179
1180 /* Runtime instructions and 2 copies of data:
1181 * 1) unmodified from disk
1182 * 2) backup cache for save/restore during power-downs */
1183 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code,
1184 pieces.inst, pieces.inst_size))
1185 goto err_pci_alloc;
1186 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data,
1187 pieces.data, pieces.data_size))
1188 goto err_pci_alloc;
1189
1190 /* Initialization instructions and data */
1191 if (pieces.init_size && pieces.init_data_size) {
1192 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code,
1193 pieces.init, pieces.init_size))
1194 goto err_pci_alloc;
1195 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data,
1196 pieces.init_data, pieces.init_data_size))
1197 goto err_pci_alloc;
1198 }
1199
1200 /* WoWLAN instructions and data */
1201 if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
1202 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code,
1203 pieces.wowlan_inst,
1204 pieces.wowlan_inst_size))
1205 goto err_pci_alloc;
1206 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data,
1207 pieces.wowlan_data,
1208 pieces.wowlan_data_size))
1209 goto err_pci_alloc;
1210 }
1211
1212 /* Now that we can no longer fail, copy information */
1213
1214 /*
1215 * The (size - 16) / 12 formula is based on the information recorded
1216 * for each event, which is of mode 1 (including timestamp) for all
1217 * new microcodes that include this information.
1218 */
1219 priv->init_evtlog_ptr = pieces.init_evtlog_ptr;
1220 if (pieces.init_evtlog_size)
1221 priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
1222 else
1223 priv->init_evtlog_size =
1224 priv->cfg->base_params->max_event_log_size;
1225 priv->init_errlog_ptr = pieces.init_errlog_ptr;
1226 priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
1227 if (pieces.inst_evtlog_size)
1228 priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
1229 else
1230 priv->inst_evtlog_size =
1231 priv->cfg->base_params->max_event_log_size;
1232 priv->inst_errlog_ptr = pieces.inst_errlog_ptr;
1233
1234 priv->new_scan_threshold_behaviour =
1235 !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1236
1237 if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1238 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1239
1240 /*
1241 * if not PAN, then don't support P2P -- might be a uCode
1242 * packaging bug or due to the eeprom check above
1243 */
1244 if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN))
1245 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1246
1247 if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
1248 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1249 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1250 } else {
1251 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1252 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1253 }
1254
1255 /*
1256 * figure out the offset of chain noise reset and gain commands
1257 * base on the size of standard phy calibration commands table size
1258 */
1259 if (ucode_capa.standard_phy_calibration_size >
1260 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1261 ucode_capa.standard_phy_calibration_size =
1262 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1263
1264 priv->phy_calib_chain_noise_reset_cmd =
1265 ucode_capa.standard_phy_calibration_size;
1266 priv->phy_calib_chain_noise_gain_cmd =
1267 ucode_capa.standard_phy_calibration_size + 1;
1268
1269 /* initialize all valid contexts */
1270 iwl_init_context(priv, ucode_capa.flags);
1271
1272 /**************************************************
1273 * This is still part of probe() in a sense...
1274 *
1275 * 9. Setup and register with mac80211 and debugfs
1276 **************************************************/
1277 err = iwl_mac_setup_register(priv, &ucode_capa);
1278 if (err)
1279 goto out_unbind;
1280
1281 err = iwl_dbgfs_register(priv, DRV_NAME);
1282 if (err)
1283 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1284
1285 err = sysfs_create_group(&(priv->bus->dev->kobj),
1286 &iwl_attribute_group);
1287 if (err) {
1288 IWL_ERR(priv, "failed to create sysfs device attributes\n");
1289 goto out_unbind;
1290 }
1291
1292 /* We have our copies now, allow OS release its copies */
1293 release_firmware(ucode_raw);
1294 complete(&priv->firmware_loading_complete);
1295 return;
1296
1297 try_again:
1298 /* try next, if any */
1299 if (iwl_request_firmware(priv, false))
1300 goto out_unbind;
1301 release_firmware(ucode_raw);
1302 return;
1303
1304 err_pci_alloc:
1305 IWL_ERR(priv, "failed to allocate pci memory\n");
1306 iwl_dealloc_ucode(priv);
1307 out_unbind:
1308 complete(&priv->firmware_loading_complete);
1309 device_release_driver(priv->bus->dev);
1310 release_firmware(ucode_raw);
1311 }
1312
1313 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1314 {
1315 struct iwl_ct_kill_config cmd;
1316 struct iwl_ct_kill_throttling_config adv_cmd;
1317 unsigned long flags;
1318 int ret = 0;
1319
1320 spin_lock_irqsave(&priv->shrd->lock, flags);
1321 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
1322 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1323 spin_unlock_irqrestore(&priv->shrd->lock, flags);
1324 priv->thermal_throttle.ct_kill_toggle = false;
1325
1326 if (priv->cfg->base_params->support_ct_kill_exit) {
1327 adv_cmd.critical_temperature_enter =
1328 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1329 adv_cmd.critical_temperature_exit =
1330 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
1331
1332 ret = iwl_trans_send_cmd_pdu(trans(priv),
1333 REPLY_CT_KILL_CONFIG_CMD,
1334 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
1335 if (ret)
1336 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1337 else
1338 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1339 "succeeded, critical temperature enter is %d,"
1340 "exit is %d\n",
1341 hw_params(priv).ct_kill_threshold,
1342 hw_params(priv).ct_kill_exit_threshold);
1343 } else {
1344 cmd.critical_temperature_R =
1345 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1346
1347 ret = iwl_trans_send_cmd_pdu(trans(priv),
1348 REPLY_CT_KILL_CONFIG_CMD,
1349 CMD_SYNC, sizeof(cmd), &cmd);
1350 if (ret)
1351 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1352 else
1353 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1354 "succeeded, "
1355 "critical temperature is %d\n",
1356 hw_params(priv).ct_kill_threshold);
1357 }
1358 }
1359
1360 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
1361 {
1362 struct iwl_calib_cfg_cmd calib_cfg_cmd;
1363 struct iwl_host_cmd cmd = {
1364 .id = CALIBRATION_CFG_CMD,
1365 .len = { sizeof(struct iwl_calib_cfg_cmd), },
1366 .data = { &calib_cfg_cmd, },
1367 };
1368
1369 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
1370 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
1371 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
1372
1373 return iwl_trans_send_cmd(trans(priv), &cmd);
1374 }
1375
1376
1377 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
1378 {
1379 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
1380 .valid = cpu_to_le32(valid_tx_ant),
1381 };
1382
1383 if (IWL_UCODE_API(priv->ucode_ver) > 1) {
1384 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
1385 return iwl_trans_send_cmd_pdu(trans(priv),
1386 TX_ANT_CONFIGURATION_CMD,
1387 CMD_SYNC,
1388 sizeof(struct iwl_tx_ant_config_cmd),
1389 &tx_ant_cmd);
1390 } else {
1391 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
1392 return -EOPNOTSUPP;
1393 }
1394 }
1395
1396 /**
1397 * iwl_alive_start - called after REPLY_ALIVE notification received
1398 * from protocol/runtime uCode (initialization uCode's
1399 * Alive gets handled by iwl_init_alive_start()).
1400 */
1401 int iwl_alive_start(struct iwl_priv *priv)
1402 {
1403 int ret = 0;
1404 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1405
1406 /*TODO: this should go to the transport layer */
1407 iwl_reset_ict(trans(priv));
1408
1409 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
1410
1411 /* After the ALIVE response, we can send host commands to the uCode */
1412 set_bit(STATUS_ALIVE, &priv->shrd->status);
1413
1414 /* Enable watchdog to monitor the driver tx queues */
1415 iwl_setup_watchdog(priv);
1416
1417 if (iwl_is_rfkill(priv->shrd))
1418 return -ERFKILL;
1419
1420 /* download priority table before any calibration request */
1421 if (priv->cfg->bt_params &&
1422 priv->cfg->bt_params->advanced_bt_coexist) {
1423 /* Configure Bluetooth device coexistence support */
1424 if (priv->cfg->bt_params->bt_sco_disable)
1425 priv->bt_enable_pspoll = false;
1426 else
1427 priv->bt_enable_pspoll = true;
1428
1429 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1430 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1431 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1432 iwlagn_send_advance_bt_config(priv);
1433 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
1434 priv->cur_rssi_ctx = NULL;
1435
1436 iwlagn_send_prio_tbl(priv);
1437
1438 /* FIXME: w/a to force change uCode BT state machine */
1439 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
1440 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1441 if (ret)
1442 return ret;
1443 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
1444 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1445 if (ret)
1446 return ret;
1447 } else {
1448 /*
1449 * default is 2-wire BT coexexistence support
1450 */
1451 iwl_send_bt_config(priv);
1452 }
1453
1454 if (hw_params(priv).calib_rt_cfg)
1455 iwlagn_send_calib_cfg_rt(priv,
1456 hw_params(priv).calib_rt_cfg);
1457
1458 ieee80211_wake_queues(priv->hw);
1459
1460 priv->active_rate = IWL_RATES_MASK;
1461
1462 /* Configure Tx antenna selection based on H/W config */
1463 iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
1464
1465 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
1466 struct iwl_rxon_cmd *active_rxon =
1467 (struct iwl_rxon_cmd *)&ctx->active;
1468 /* apply any changes in staging */
1469 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
1470 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1471 } else {
1472 struct iwl_rxon_context *tmp;
1473 /* Initialize our rx_config data */
1474 for_each_context(priv, tmp)
1475 iwl_connection_init_rx_config(priv, tmp);
1476
1477 iwlagn_set_rxon_chain(priv, ctx);
1478 }
1479
1480 if (!priv->shrd->wowlan) {
1481 /* WoWLAN ucode will not reply in the same way, skip it */
1482 iwl_reset_run_time_calib(priv);
1483 }
1484
1485 set_bit(STATUS_READY, &priv->shrd->status);
1486
1487 /* Configure the adapter for unassociated operation */
1488 ret = iwlagn_commit_rxon(priv, ctx);
1489 if (ret)
1490 return ret;
1491
1492 /* At this point, the NIC is initialized and operational */
1493 iwl_rf_kill_ct_config(priv);
1494
1495 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
1496
1497 return iwl_power_update_mode(priv, true);
1498 }
1499
1500 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
1501
1502 static void __iwl_down(struct iwl_priv *priv)
1503 {
1504 int exit_pending;
1505
1506 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
1507
1508 iwl_scan_cancel_timeout(priv, 200);
1509
1510 /*
1511 * If active, scanning won't cancel it, so say it expired.
1512 * No race since we hold the mutex here and a new one
1513 * can't come in at this time.
1514 */
1515 ieee80211_remain_on_channel_expired(priv->hw);
1516
1517 exit_pending =
1518 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1519
1520 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1521 * to prevent rearm timer */
1522 del_timer_sync(&priv->watchdog);
1523
1524 iwl_clear_ucode_stations(priv, NULL);
1525 iwl_dealloc_bcast_stations(priv);
1526 iwl_clear_driver_stations(priv);
1527
1528 /* reset BT coex data */
1529 priv->bt_status = 0;
1530 priv->cur_rssi_ctx = NULL;
1531 priv->bt_is_sco = 0;
1532 if (priv->cfg->bt_params)
1533 priv->bt_traffic_load =
1534 priv->cfg->bt_params->bt_init_traffic_load;
1535 else
1536 priv->bt_traffic_load = 0;
1537 priv->bt_full_concurrent = false;
1538 priv->bt_ci_compliance = 0;
1539
1540 /* Wipe out the EXIT_PENDING status bit if we are not actually
1541 * exiting the module */
1542 if (!exit_pending)
1543 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1544
1545 if (priv->mac80211_registered)
1546 ieee80211_stop_queues(priv->hw);
1547
1548 /* Clear out all status bits but a few that are stable across reset */
1549 priv->shrd->status &=
1550 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
1551 STATUS_RF_KILL_HW |
1552 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
1553 STATUS_GEO_CONFIGURED |
1554 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
1555 STATUS_FW_ERROR |
1556 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
1557 STATUS_EXIT_PENDING;
1558
1559 iwl_trans_stop_device(trans(priv));
1560
1561 dev_kfree_skb(priv->beacon_skb);
1562 priv->beacon_skb = NULL;
1563 }
1564
1565 static void iwl_down(struct iwl_priv *priv)
1566 {
1567 mutex_lock(&priv->shrd->mutex);
1568 __iwl_down(priv);
1569 mutex_unlock(&priv->shrd->mutex);
1570
1571 iwl_cancel_deferred_work(priv);
1572 }
1573
1574 #define MAX_HW_RESTARTS 5
1575
1576 static int __iwl_up(struct iwl_priv *priv)
1577 {
1578 struct iwl_rxon_context *ctx;
1579 int ret;
1580
1581 lockdep_assert_held(&priv->shrd->mutex);
1582
1583 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
1584 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
1585 return -EIO;
1586 }
1587
1588 for_each_context(priv, ctx) {
1589 ret = iwlagn_alloc_bcast_station(priv, ctx);
1590 if (ret) {
1591 iwl_dealloc_bcast_stations(priv);
1592 return ret;
1593 }
1594 }
1595
1596 ret = iwlagn_run_init_ucode(priv);
1597 if (ret) {
1598 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
1599 goto error;
1600 }
1601
1602 ret = iwlagn_load_ucode_wait_alive(priv,
1603 &priv->ucode_rt,
1604 IWL_UCODE_REGULAR);
1605 if (ret) {
1606 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
1607 goto error;
1608 }
1609
1610 ret = iwl_alive_start(priv);
1611 if (ret)
1612 goto error;
1613 return 0;
1614
1615 error:
1616 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1617 __iwl_down(priv);
1618 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1619
1620 IWL_ERR(priv, "Unable to initialize device.\n");
1621 return ret;
1622 }
1623
1624
1625 /*****************************************************************************
1626 *
1627 * Workqueue callbacks
1628 *
1629 *****************************************************************************/
1630
1631 static void iwl_bg_run_time_calib_work(struct work_struct *work)
1632 {
1633 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1634 run_time_calib_work);
1635
1636 mutex_lock(&priv->shrd->mutex);
1637
1638 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
1639 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
1640 mutex_unlock(&priv->shrd->mutex);
1641 return;
1642 }
1643
1644 if (priv->start_calib) {
1645 iwl_chain_noise_calibration(priv);
1646 iwl_sensitivity_calibration(priv);
1647 }
1648
1649 mutex_unlock(&priv->shrd->mutex);
1650 }
1651
1652 static void iwlagn_prepare_restart(struct iwl_priv *priv)
1653 {
1654 struct iwl_rxon_context *ctx;
1655 bool bt_full_concurrent;
1656 u8 bt_ci_compliance;
1657 u8 bt_load;
1658 u8 bt_status;
1659 bool bt_is_sco;
1660
1661 lockdep_assert_held(&priv->shrd->mutex);
1662
1663 for_each_context(priv, ctx)
1664 ctx->vif = NULL;
1665 priv->is_open = 0;
1666
1667 /*
1668 * __iwl_down() will clear the BT status variables,
1669 * which is correct, but when we restart we really
1670 * want to keep them so restore them afterwards.
1671 *
1672 * The restart process will later pick them up and
1673 * re-configure the hw when we reconfigure the BT
1674 * command.
1675 */
1676 bt_full_concurrent = priv->bt_full_concurrent;
1677 bt_ci_compliance = priv->bt_ci_compliance;
1678 bt_load = priv->bt_traffic_load;
1679 bt_status = priv->bt_status;
1680 bt_is_sco = priv->bt_is_sco;
1681
1682 __iwl_down(priv);
1683
1684 priv->bt_full_concurrent = bt_full_concurrent;
1685 priv->bt_ci_compliance = bt_ci_compliance;
1686 priv->bt_traffic_load = bt_load;
1687 priv->bt_status = bt_status;
1688 priv->bt_is_sco = bt_is_sco;
1689 }
1690
1691 static void iwl_bg_restart(struct work_struct *data)
1692 {
1693 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1694
1695 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
1696 return;
1697
1698 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
1699 mutex_lock(&priv->shrd->mutex);
1700 iwlagn_prepare_restart(priv);
1701 mutex_unlock(&priv->shrd->mutex);
1702 iwl_cancel_deferred_work(priv);
1703 ieee80211_restart_hw(priv->hw);
1704 } else {
1705 WARN_ON(1);
1706 }
1707 }
1708
1709 /*****************************************************************************
1710 *
1711 * mac80211 entry point functions
1712 *
1713 *****************************************************************************/
1714
1715 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
1716 {
1717 .max = 1,
1718 .types = BIT(NL80211_IFTYPE_STATION),
1719 },
1720 {
1721 .max = 1,
1722 .types = BIT(NL80211_IFTYPE_AP),
1723 },
1724 };
1725
1726 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
1727 {
1728 .max = 2,
1729 .types = BIT(NL80211_IFTYPE_STATION),
1730 },
1731 };
1732
1733 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
1734 {
1735 .max = 1,
1736 .types = BIT(NL80211_IFTYPE_STATION),
1737 },
1738 {
1739 .max = 1,
1740 .types = BIT(NL80211_IFTYPE_P2P_GO) |
1741 BIT(NL80211_IFTYPE_AP),
1742 },
1743 };
1744
1745 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
1746 {
1747 .max = 2,
1748 .types = BIT(NL80211_IFTYPE_STATION),
1749 },
1750 {
1751 .max = 1,
1752 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
1753 },
1754 };
1755
1756 static const struct ieee80211_iface_combination
1757 iwlagn_iface_combinations_dualmode[] = {
1758 { .num_different_channels = 1,
1759 .max_interfaces = 2,
1760 .beacon_int_infra_match = true,
1761 .limits = iwlagn_sta_ap_limits,
1762 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
1763 },
1764 { .num_different_channels = 1,
1765 .max_interfaces = 2,
1766 .limits = iwlagn_2sta_limits,
1767 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
1768 },
1769 };
1770
1771 static const struct ieee80211_iface_combination
1772 iwlagn_iface_combinations_p2p[] = {
1773 { .num_different_channels = 1,
1774 .max_interfaces = 2,
1775 .beacon_int_infra_match = true,
1776 .limits = iwlagn_p2p_sta_go_limits,
1777 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
1778 },
1779 { .num_different_channels = 1,
1780 .max_interfaces = 2,
1781 .limits = iwlagn_p2p_2sta_limits,
1782 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
1783 },
1784 };
1785
1786 /*
1787 * Not a mac80211 entry point function, but it fits in with all the
1788 * other mac80211 functions grouped here.
1789 */
1790 static int iwl_mac_setup_register(struct iwl_priv *priv,
1791 struct iwlagn_ucode_capabilities *capa)
1792 {
1793 int ret;
1794 struct ieee80211_hw *hw = priv->hw;
1795 struct iwl_rxon_context *ctx;
1796
1797 hw->rate_control_algorithm = "iwl-agn-rs";
1798
1799 /* Tell mac80211 our characteristics */
1800 hw->flags = IEEE80211_HW_SIGNAL_DBM |
1801 IEEE80211_HW_AMPDU_AGGREGATION |
1802 IEEE80211_HW_NEED_DTIM_PERIOD |
1803 IEEE80211_HW_SPECTRUM_MGMT |
1804 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
1805
1806 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
1807
1808 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
1809 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
1810
1811 if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
1812 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1813 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
1814
1815 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
1816 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
1817
1818 hw->sta_data_size = sizeof(struct iwl_station_priv);
1819 hw->vif_data_size = sizeof(struct iwl_vif_priv);
1820
1821 for_each_context(priv, ctx) {
1822 hw->wiphy->interface_modes |= ctx->interface_modes;
1823 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
1824 }
1825
1826 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1827
1828 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
1829 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
1830 hw->wiphy->n_iface_combinations =
1831 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
1832 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
1833 hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode;
1834 hw->wiphy->n_iface_combinations =
1835 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
1836 }
1837
1838 hw->wiphy->max_remain_on_channel_duration = 1000;
1839
1840 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
1841 WIPHY_FLAG_DISABLE_BEACON_HINTS |
1842 WIPHY_FLAG_IBSS_RSN;
1843
1844 if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) {
1845 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
1846 WIPHY_WOWLAN_DISCONNECT |
1847 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
1848 WIPHY_WOWLAN_RFKILL_RELEASE;
1849 if (!iwlagn_mod_params.sw_crypto)
1850 hw->wiphy->wowlan.flags |=
1851 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
1852 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
1853
1854 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
1855 hw->wiphy->wowlan.pattern_min_len =
1856 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
1857 hw->wiphy->wowlan.pattern_max_len =
1858 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
1859 }
1860
1861 if (iwlagn_mod_params.power_save)
1862 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
1863 else
1864 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
1865
1866 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
1867 /* we create the 802.11 header and a zero-length SSID element */
1868 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
1869
1870 /* Default value; 4 EDCA QOS priorities */
1871 hw->queues = 4;
1872
1873 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1874
1875 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1876 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1877 &priv->bands[IEEE80211_BAND_2GHZ];
1878 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1879 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1880 &priv->bands[IEEE80211_BAND_5GHZ];
1881
1882 iwl_leds_init(priv);
1883
1884 ret = ieee80211_register_hw(priv->hw);
1885 if (ret) {
1886 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1887 return ret;
1888 }
1889 priv->mac80211_registered = 1;
1890
1891 return 0;
1892 }
1893
1894
1895 static int iwlagn_mac_start(struct ieee80211_hw *hw)
1896 {
1897 struct iwl_priv *priv = hw->priv;
1898 int ret;
1899
1900 IWL_DEBUG_MAC80211(priv, "enter\n");
1901
1902 /* we should be verifying the device is ready to be opened */
1903 mutex_lock(&priv->shrd->mutex);
1904 ret = __iwl_up(priv);
1905 mutex_unlock(&priv->shrd->mutex);
1906 if (ret)
1907 return ret;
1908
1909 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
1910
1911 /* Now we should be done, and the READY bit should be set. */
1912 if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
1913 ret = -EIO;
1914
1915 iwlagn_led_enable(priv);
1916
1917 priv->is_open = 1;
1918 IWL_DEBUG_MAC80211(priv, "leave\n");
1919 return 0;
1920 }
1921
1922 static void iwlagn_mac_stop(struct ieee80211_hw *hw)
1923 {
1924 struct iwl_priv *priv = hw->priv;
1925
1926 IWL_DEBUG_MAC80211(priv, "enter\n");
1927
1928 if (!priv->is_open)
1929 return;
1930
1931 priv->is_open = 0;
1932
1933 iwl_down(priv);
1934
1935 flush_workqueue(priv->shrd->workqueue);
1936
1937 /* User space software may expect getting rfkill changes
1938 * even if interface is down */
1939 iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
1940 iwl_enable_rfkill_int(priv);
1941
1942 IWL_DEBUG_MAC80211(priv, "leave\n");
1943 }
1944
1945 #ifdef CONFIG_PM
1946 static int iwlagn_send_patterns(struct iwl_priv *priv,
1947 struct cfg80211_wowlan *wowlan)
1948 {
1949 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1950 struct iwl_host_cmd cmd = {
1951 .id = REPLY_WOWLAN_PATTERNS,
1952 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1953 .flags = CMD_SYNC,
1954 };
1955 int i, err;
1956
1957 if (!wowlan->n_patterns)
1958 return 0;
1959
1960 cmd.len[0] = sizeof(*pattern_cmd) +
1961 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1962
1963 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1964 if (!pattern_cmd)
1965 return -ENOMEM;
1966
1967 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1968
1969 for (i = 0; i < wowlan->n_patterns; i++) {
1970 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1971
1972 memcpy(&pattern_cmd->patterns[i].mask,
1973 wowlan->patterns[i].mask, mask_len);
1974 memcpy(&pattern_cmd->patterns[i].pattern,
1975 wowlan->patterns[i].pattern,
1976 wowlan->patterns[i].pattern_len);
1977 pattern_cmd->patterns[i].mask_size = mask_len;
1978 pattern_cmd->patterns[i].pattern_size =
1979 wowlan->patterns[i].pattern_len;
1980 }
1981
1982 cmd.data[0] = pattern_cmd;
1983 err = iwl_trans_send_cmd(trans(priv), &cmd);
1984 kfree(pattern_cmd);
1985 return err;
1986 }
1987 #endif
1988
1989 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
1990 struct ieee80211_vif *vif,
1991 struct cfg80211_gtk_rekey_data *data)
1992 {
1993 struct iwl_priv *priv = hw->priv;
1994
1995 if (iwlagn_mod_params.sw_crypto)
1996 return;
1997
1998 mutex_lock(&priv->shrd->mutex);
1999
2000 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
2001 goto out;
2002
2003 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
2004 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
2005 priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
2006 priv->have_rekey_data = true;
2007
2008 out:
2009 mutex_unlock(&priv->shrd->mutex);
2010 }
2011
2012 struct wowlan_key_data {
2013 struct iwl_rxon_context *ctx;
2014 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
2015 struct iwlagn_wowlan_tkip_params_cmd *tkip;
2016 const u8 *bssid;
2017 bool error, use_rsc_tsc, use_tkip;
2018 };
2019
2020 #ifdef CONFIG_PM
2021 static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
2022 {
2023 int i;
2024
2025 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
2026 out[i] = cpu_to_le16(p1k[i]);
2027 }
2028
2029 static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
2030 struct ieee80211_vif *vif,
2031 struct ieee80211_sta *sta,
2032 struct ieee80211_key_conf *key,
2033 void *_data)
2034 {
2035 struct iwl_priv *priv = hw->priv;
2036 struct wowlan_key_data *data = _data;
2037 struct iwl_rxon_context *ctx = data->ctx;
2038 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
2039 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
2040 struct iwlagn_p1k_cache *rx_p1ks;
2041 u8 *rx_mic_key;
2042 struct ieee80211_key_seq seq;
2043 u32 cur_rx_iv32 = 0;
2044 u16 p1k[IWLAGN_P1K_SIZE];
2045 int ret, i;
2046
2047 mutex_lock(&priv->shrd->mutex);
2048
2049 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
2050 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
2051 !sta && !ctx->key_mapping_keys)
2052 ret = iwl_set_default_wep_key(priv, ctx, key);
2053 else
2054 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
2055
2056 if (ret) {
2057 IWL_ERR(priv, "Error setting key during suspend!\n");
2058 data->error = true;
2059 }
2060
2061 switch (key->cipher) {
2062 case WLAN_CIPHER_SUITE_TKIP:
2063 if (sta) {
2064 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
2065 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
2066
2067 rx_p1ks = data->tkip->rx_uni;
2068
2069 ieee80211_get_key_tx_seq(key, &seq);
2070 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
2071 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
2072
2073 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
2074 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
2075
2076 memcpy(data->tkip->mic_keys.tx,
2077 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
2078 IWLAGN_MIC_KEY_SIZE);
2079
2080 rx_mic_key = data->tkip->mic_keys.rx_unicast;
2081 } else {
2082 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
2083 rx_p1ks = data->tkip->rx_multi;
2084 rx_mic_key = data->tkip->mic_keys.rx_mcast;
2085 }
2086
2087 /*
2088 * For non-QoS this relies on the fact that both the uCode and
2089 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2090 * for checking the IV in the frames.
2091 */
2092 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
2093 ieee80211_get_key_rx_seq(key, i, &seq);
2094 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
2095 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
2096 /* wrapping isn't allowed, AP must rekey */
2097 if (seq.tkip.iv32 > cur_rx_iv32)
2098 cur_rx_iv32 = seq.tkip.iv32;
2099 }
2100
2101 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
2102 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
2103 ieee80211_get_tkip_rx_p1k(key, data->bssid,
2104 cur_rx_iv32 + 1, p1k);
2105 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
2106
2107 memcpy(rx_mic_key,
2108 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
2109 IWLAGN_MIC_KEY_SIZE);
2110
2111 data->use_tkip = true;
2112 data->use_rsc_tsc = true;
2113 break;
2114 case WLAN_CIPHER_SUITE_CCMP:
2115 if (sta) {
2116 u8 *pn = seq.ccmp.pn;
2117
2118 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
2119 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
2120
2121 ieee80211_get_key_tx_seq(key, &seq);
2122 aes_tx_sc->pn = cpu_to_le64(
2123 (u64)pn[5] |
2124 ((u64)pn[4] << 8) |
2125 ((u64)pn[3] << 16) |
2126 ((u64)pn[2] << 24) |
2127 ((u64)pn[1] << 32) |
2128 ((u64)pn[0] << 40));
2129 } else
2130 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
2131
2132 /*
2133 * For non-QoS this relies on the fact that both the uCode and
2134 * mac80211 use TID 0 for checking the IV in the frames.
2135 */
2136 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
2137 u8 *pn = seq.ccmp.pn;
2138
2139 ieee80211_get_key_rx_seq(key, i, &seq);
2140 aes_sc->pn = cpu_to_le64(
2141 (u64)pn[5] |
2142 ((u64)pn[4] << 8) |
2143 ((u64)pn[3] << 16) |
2144 ((u64)pn[2] << 24) |
2145 ((u64)pn[1] << 32) |
2146 ((u64)pn[0] << 40));
2147 }
2148 data->use_rsc_tsc = true;
2149 break;
2150 }
2151
2152 mutex_unlock(&priv->shrd->mutex);
2153 }
2154
2155 static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
2156 struct cfg80211_wowlan *wowlan)
2157 {
2158 struct iwl_priv *priv = hw->priv;
2159 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
2160 struct iwl_rxon_cmd rxon;
2161 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2162 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
2163 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
2164 struct wowlan_key_data key_data = {
2165 .ctx = ctx,
2166 .bssid = ctx->active.bssid_addr,
2167 .use_rsc_tsc = false,
2168 .tkip = &tkip_cmd,
2169 .use_tkip = false,
2170 };
2171 int ret, i;
2172 u16 seq;
2173
2174 if (WARN_ON(!wowlan))
2175 return -EINVAL;
2176
2177 mutex_lock(&priv->shrd->mutex);
2178
2179 /* Don't attempt WoWLAN when not associated, tear down instead. */
2180 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
2181 !iwl_is_associated_ctx(ctx)) {
2182 ret = 1;
2183 goto out;
2184 }
2185
2186 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
2187 if (!key_data.rsc_tsc) {
2188 ret = -ENOMEM;
2189 goto out;
2190 }
2191
2192 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
2193
2194 /*
2195 * We know the last used seqno, and the uCode expects to know that
2196 * one, it will increment before TX.
2197 */
2198 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
2199 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
2200
2201 /*
2202 * For QoS counters, we store the one to use next, so subtract 0x10
2203 * since the uCode will add 0x10 before using the value.
2204 */
2205 for (i = 0; i < 8; i++) {
2206 seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
2207 seq -= 0x10;
2208 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
2209 }
2210
2211 if (wowlan->disconnect)
2212 wakeup_filter_cmd.enabled |=
2213 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
2214 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
2215 if (wowlan->magic_pkt)
2216 wakeup_filter_cmd.enabled |=
2217 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
2218 if (wowlan->gtk_rekey_failure)
2219 wakeup_filter_cmd.enabled |=
2220 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
2221 if (wowlan->eap_identity_req)
2222 wakeup_filter_cmd.enabled |=
2223 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
2224 if (wowlan->four_way_handshake)
2225 wakeup_filter_cmd.enabled |=
2226 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
2227 if (wowlan->rfkill_release)
2228 wakeup_filter_cmd.enabled |=
2229 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL);
2230 if (wowlan->n_patterns)
2231 wakeup_filter_cmd.enabled |=
2232 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
2233
2234 iwl_scan_cancel_timeout(priv, 200);
2235
2236 memcpy(&rxon, &ctx->active, sizeof(rxon));
2237
2238 iwl_trans_stop_device(trans(priv));
2239
2240 priv->shrd->wowlan = true;
2241
2242 ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan,
2243 IWL_UCODE_WOWLAN);
2244 if (ret)
2245 goto error;
2246
2247 /* now configure WoWLAN ucode */
2248 ret = iwl_alive_start(priv);
2249 if (ret)
2250 goto error;
2251
2252 memcpy(&ctx->staging, &rxon, sizeof(rxon));
2253 ret = iwlagn_commit_rxon(priv, ctx);
2254 if (ret)
2255 goto error;
2256
2257 ret = iwl_power_update_mode(priv, true);
2258 if (ret)
2259 goto error;
2260
2261 if (!iwlagn_mod_params.sw_crypto) {
2262 /* mark all keys clear */
2263 priv->ucode_key_table = 0;
2264 ctx->key_mapping_keys = 0;
2265
2266 /*
2267 * This needs to be unlocked due to lock ordering
2268 * constraints. Since we're in the suspend path
2269 * that isn't really a problem though.
2270 */
2271 mutex_unlock(&priv->shrd->mutex);
2272 ieee80211_iter_keys(priv->hw, ctx->vif,
2273 iwlagn_wowlan_program_keys,
2274 &key_data);
2275 mutex_lock(&priv->shrd->mutex);
2276 if (key_data.error) {
2277 ret = -EIO;
2278 goto error;
2279 }
2280
2281 if (key_data.use_rsc_tsc) {
2282 struct iwl_host_cmd rsc_tsc_cmd = {
2283 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
2284 .flags = CMD_SYNC,
2285 .data[0] = key_data.rsc_tsc,
2286 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2287 .len[0] = sizeof(*key_data.rsc_tsc),
2288 };
2289
2290 ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd);
2291 if (ret)
2292 goto error;
2293 }
2294
2295 if (key_data.use_tkip) {
2296 ret = iwl_trans_send_cmd_pdu(trans(priv),
2297 REPLY_WOWLAN_TKIP_PARAMS,
2298 CMD_SYNC, sizeof(tkip_cmd),
2299 &tkip_cmd);
2300 if (ret)
2301 goto error;
2302 }
2303
2304 if (priv->have_rekey_data) {
2305 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
2306 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
2307 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
2308 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
2309 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
2310 kek_kck_cmd.replay_ctr = priv->replay_ctr;
2311
2312 ret = iwl_trans_send_cmd_pdu(trans(priv),
2313 REPLY_WOWLAN_KEK_KCK_MATERIAL,
2314 CMD_SYNC, sizeof(kek_kck_cmd),
2315 &kek_kck_cmd);
2316 if (ret)
2317 goto error;
2318 }
2319 }
2320
2321 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER,
2322 CMD_SYNC, sizeof(wakeup_filter_cmd),
2323 &wakeup_filter_cmd);
2324 if (ret)
2325 goto error;
2326
2327 ret = iwlagn_send_patterns(priv, wowlan);
2328 if (ret)
2329 goto error;
2330
2331 device_set_wakeup_enable(priv->bus->dev, true);
2332
2333 /* Now let the ucode operate on its own */
2334 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
2335 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2336
2337 goto out;
2338
2339 error:
2340 priv->shrd->wowlan = false;
2341 iwlagn_prepare_restart(priv);
2342 ieee80211_restart_hw(priv->hw);
2343 out:
2344 mutex_unlock(&priv->shrd->mutex);
2345 kfree(key_data.rsc_tsc);
2346 return ret;
2347 }
2348
2349 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
2350 {
2351 struct iwl_priv *priv = hw->priv;
2352 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2353 struct ieee80211_vif *vif;
2354 unsigned long flags;
2355 u32 base, status = 0xffffffff;
2356 int ret = -EIO;
2357
2358 mutex_lock(&priv->shrd->mutex);
2359
2360 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
2361 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2362
2363 base = priv->device_pointers.error_event_table;
2364 if (iwlagn_hw_valid_rtc_data_addr(base)) {
2365 spin_lock_irqsave(&bus(priv)->reg_lock, flags);
2366 ret = iwl_grab_nic_access_silent(bus(priv));
2367 if (ret == 0) {
2368 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
2369 status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
2370 iwl_release_nic_access(bus(priv));
2371 }
2372 spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
2373
2374 #ifdef CONFIG_IWLWIFI_DEBUGFS
2375 if (ret == 0) {
2376 if (!priv->wowlan_sram)
2377 priv->wowlan_sram =
2378 kzalloc(priv->ucode_wowlan.data.len,
2379 GFP_KERNEL);
2380
2381 if (priv->wowlan_sram)
2382 _iwl_read_targ_mem_words(
2383 bus(priv), 0x800000, priv->wowlan_sram,
2384 priv->ucode_wowlan.data.len / 4);
2385 }
2386 #endif
2387 }
2388
2389 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2390 vif = ctx->vif;
2391
2392 priv->shrd->wowlan = false;
2393
2394 device_set_wakeup_enable(priv->bus->dev, false);
2395
2396 iwlagn_prepare_restart(priv);
2397
2398 memset((void *)&ctx->active, 0, sizeof(ctx->active));
2399 iwl_connection_init_rx_config(priv, ctx);
2400 iwlagn_set_rxon_chain(priv, ctx);
2401
2402 mutex_unlock(&priv->shrd->mutex);
2403
2404 ieee80211_resume_disconnect(vif);
2405
2406 return 1;
2407 }
2408 #endif
2409
2410 static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2411 {
2412 struct iwl_priv *priv = hw->priv;
2413
2414 IWL_DEBUG_MACDUMP(priv, "enter\n");
2415
2416 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2417 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2418
2419 if (iwlagn_tx_skb(priv, skb))
2420 dev_kfree_skb_any(skb);
2421
2422 IWL_DEBUG_MACDUMP(priv, "leave\n");
2423 }
2424
2425 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
2426 struct ieee80211_vif *vif,
2427 struct ieee80211_key_conf *keyconf,
2428 struct ieee80211_sta *sta,
2429 u32 iv32, u16 *phase1key)
2430 {
2431 struct iwl_priv *priv = hw->priv;
2432
2433 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
2434 }
2435
2436 static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2437 struct ieee80211_vif *vif,
2438 struct ieee80211_sta *sta,
2439 struct ieee80211_key_conf *key)
2440 {
2441 struct iwl_priv *priv = hw->priv;
2442 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2443 struct iwl_rxon_context *ctx = vif_priv->ctx;
2444 int ret;
2445 bool is_default_wep_key = false;
2446
2447 IWL_DEBUG_MAC80211(priv, "enter\n");
2448
2449 if (iwlagn_mod_params.sw_crypto) {
2450 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
2451 return -EOPNOTSUPP;
2452 }
2453
2454 /*
2455 * We could program these keys into the hardware as well, but we
2456 * don't expect much multicast traffic in IBSS and having keys
2457 * for more stations is probably more useful.
2458 *
2459 * Mark key TX-only and return 0.
2460 */
2461 if (vif->type == NL80211_IFTYPE_ADHOC &&
2462 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
2463 key->hw_key_idx = WEP_INVALID_OFFSET;
2464 return 0;
2465 }
2466
2467 /* If they key was TX-only, accept deletion */
2468 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
2469 return 0;
2470
2471 mutex_lock(&priv->shrd->mutex);
2472 iwl_scan_cancel_timeout(priv, 100);
2473
2474 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
2475
2476 /*
2477 * If we are getting WEP group key and we didn't receive any key mapping
2478 * so far, we are in legacy wep mode (group key only), otherwise we are
2479 * in 1X mode.
2480 * In legacy wep mode, we use another host command to the uCode.
2481 */
2482 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
2483 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
2484 if (cmd == SET_KEY)
2485 is_default_wep_key = !ctx->key_mapping_keys;
2486 else
2487 is_default_wep_key =
2488 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
2489 }
2490
2491
2492 switch (cmd) {
2493 case SET_KEY:
2494 if (is_default_wep_key) {
2495 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
2496 break;
2497 }
2498 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
2499 if (ret) {
2500 /*
2501 * can't add key for RX, but we don't need it
2502 * in the device for TX so still return 0
2503 */
2504 ret = 0;
2505 key->hw_key_idx = WEP_INVALID_OFFSET;
2506 }
2507
2508 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
2509 break;
2510 case DISABLE_KEY:
2511 if (is_default_wep_key)
2512 ret = iwl_remove_default_wep_key(priv, ctx, key);
2513 else
2514 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
2515
2516 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
2517 break;
2518 default:
2519 ret = -EINVAL;
2520 }
2521
2522 mutex_unlock(&priv->shrd->mutex);
2523 IWL_DEBUG_MAC80211(priv, "leave\n");
2524
2525 return ret;
2526 }
2527
2528 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
2529 struct ieee80211_vif *vif,
2530 enum ieee80211_ampdu_mlme_action action,
2531 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
2532 u8 buf_size)
2533 {
2534 struct iwl_priv *priv = hw->priv;
2535 int ret = -EINVAL;
2536 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
2537
2538 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
2539 sta->addr, tid);
2540
2541 if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
2542 return -EACCES;
2543
2544 mutex_lock(&priv->shrd->mutex);
2545
2546 switch (action) {
2547 case IEEE80211_AMPDU_RX_START:
2548 IWL_DEBUG_HT(priv, "start Rx\n");
2549 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
2550 break;
2551 case IEEE80211_AMPDU_RX_STOP:
2552 IWL_DEBUG_HT(priv, "stop Rx\n");
2553 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
2554 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2555 ret = 0;
2556 break;
2557 case IEEE80211_AMPDU_TX_START:
2558 IWL_DEBUG_HT(priv, "start Tx\n");
2559 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
2560 if (ret == 0) {
2561 priv->agg_tids_count++;
2562 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2563 priv->agg_tids_count);
2564 }
2565 break;
2566 case IEEE80211_AMPDU_TX_STOP:
2567 IWL_DEBUG_HT(priv, "stop Tx\n");
2568 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
2569 if ((ret == 0) && (priv->agg_tids_count > 0)) {
2570 priv->agg_tids_count--;
2571 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2572 priv->agg_tids_count);
2573 }
2574 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2575 ret = 0;
2576 if (priv->cfg->ht_params &&
2577 priv->cfg->ht_params->use_rts_for_aggregation) {
2578 /*
2579 * switch off RTS/CTS if it was previously enabled
2580 */
2581 sta_priv->lq_sta.lq.general_params.flags &=
2582 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2583 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2584 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2585 }
2586 break;
2587 case IEEE80211_AMPDU_TX_OPERATIONAL:
2588 buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
2589
2590 iwl_trans_txq_agg_setup(trans(priv), iwl_sta_id(sta), tid,
2591 buf_size);
2592
2593 /*
2594 * If the limit is 0, then it wasn't initialised yet,
2595 * use the default. We can do that since we take the
2596 * minimum below, and we don't want to go above our
2597 * default due to hardware restrictions.
2598 */
2599 if (sta_priv->max_agg_bufsize == 0)
2600 sta_priv->max_agg_bufsize =
2601 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2602
2603 /*
2604 * Even though in theory the peer could have different
2605 * aggregation reorder buffer sizes for different sessions,
2606 * our ucode doesn't allow for that and has a global limit
2607 * for each station. Therefore, use the minimum of all the
2608 * aggregation sessions and our default value.
2609 */
2610 sta_priv->max_agg_bufsize =
2611 min(sta_priv->max_agg_bufsize, buf_size);
2612
2613 if (priv->cfg->ht_params &&
2614 priv->cfg->ht_params->use_rts_for_aggregation) {
2615 /*
2616 * switch to RTS/CTS if it is the prefer protection
2617 * method for HT traffic
2618 */
2619
2620 sta_priv->lq_sta.lq.general_params.flags |=
2621 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2622 }
2623
2624 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
2625 sta_priv->max_agg_bufsize;
2626
2627 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2628 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2629
2630 IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
2631 sta->addr, tid);
2632 ret = 0;
2633 break;
2634 }
2635 mutex_unlock(&priv->shrd->mutex);
2636
2637 return ret;
2638 }
2639
2640 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
2641 struct ieee80211_vif *vif,
2642 struct ieee80211_sta *sta)
2643 {
2644 struct iwl_priv *priv = hw->priv;
2645 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
2646 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2647 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
2648 int ret;
2649 u8 sta_id;
2650
2651 IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
2652 sta->addr);
2653 mutex_lock(&priv->shrd->mutex);
2654 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
2655 sta->addr);
2656 sta_priv->common.sta_id = IWL_INVALID_STATION;
2657
2658 atomic_set(&sta_priv->pending_frames, 0);
2659 if (vif->type == NL80211_IFTYPE_AP)
2660 sta_priv->client = true;
2661
2662 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
2663 is_ap, sta, &sta_id);
2664 if (ret) {
2665 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
2666 sta->addr, ret);
2667 /* Should we return success if return code is EEXIST ? */
2668 mutex_unlock(&priv->shrd->mutex);
2669 return ret;
2670 }
2671
2672 sta_priv->common.sta_id = sta_id;
2673
2674 /* Initialize rate scaling */
2675 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
2676 sta->addr);
2677 iwl_rs_rate_init(priv, sta, sta_id);
2678 mutex_unlock(&priv->shrd->mutex);
2679
2680 return 0;
2681 }
2682
2683 static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
2684 struct ieee80211_channel_switch *ch_switch)
2685 {
2686 struct iwl_priv *priv = hw->priv;
2687 const struct iwl_channel_info *ch_info;
2688 struct ieee80211_conf *conf = &hw->conf;
2689 struct ieee80211_channel *channel = ch_switch->channel;
2690 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
2691 /*
2692 * MULTI-FIXME
2693 * When we add support for multiple interfaces, we need to
2694 * revisit this. The channel switch command in the device
2695 * only affects the BSS context, but what does that really
2696 * mean? And what if we get a CSA on the second interface?
2697 * This needs a lot of work.
2698 */
2699 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2700 u16 ch;
2701
2702 IWL_DEBUG_MAC80211(priv, "enter\n");
2703
2704 mutex_lock(&priv->shrd->mutex);
2705
2706 if (iwl_is_rfkill(priv->shrd))
2707 goto out;
2708
2709 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
2710 test_bit(STATUS_SCANNING, &priv->shrd->status) ||
2711 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
2712 goto out;
2713
2714 if (!iwl_is_associated_ctx(ctx))
2715 goto out;
2716
2717 if (!priv->cfg->lib->set_channel_switch)
2718 goto out;
2719
2720 ch = channel->hw_value;
2721 if (le16_to_cpu(ctx->active.channel) == ch)
2722 goto out;
2723
2724 ch_info = iwl_get_channel_info(priv, channel->band, ch);
2725 if (!is_channel_valid(ch_info)) {
2726 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
2727 goto out;
2728 }
2729
2730 spin_lock_irq(&priv->shrd->lock);
2731
2732 priv->current_ht_config.smps = conf->smps_mode;
2733
2734 /* Configure HT40 channels */
2735 ctx->ht.enabled = conf_is_ht(conf);
2736 if (ctx->ht.enabled) {
2737 if (conf_is_ht40_minus(conf)) {
2738 ctx->ht.extension_chan_offset =
2739 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2740 ctx->ht.is_40mhz = true;
2741 } else if (conf_is_ht40_plus(conf)) {
2742 ctx->ht.extension_chan_offset =
2743 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2744 ctx->ht.is_40mhz = true;
2745 } else {
2746 ctx->ht.extension_chan_offset =
2747 IEEE80211_HT_PARAM_CHA_SEC_NONE;
2748 ctx->ht.is_40mhz = false;
2749 }
2750 } else
2751 ctx->ht.is_40mhz = false;
2752
2753 if ((le16_to_cpu(ctx->staging.channel) != ch))
2754 ctx->staging.flags = 0;
2755
2756 iwl_set_rxon_channel(priv, channel, ctx);
2757 iwl_set_rxon_ht(priv, ht_conf);
2758 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
2759
2760 spin_unlock_irq(&priv->shrd->lock);
2761
2762 iwl_set_rate(priv);
2763 /*
2764 * at this point, staging_rxon has the
2765 * configuration for channel switch
2766 */
2767 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2768 priv->switch_channel = cpu_to_le16(ch);
2769 if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
2770 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2771 priv->switch_channel = 0;
2772 ieee80211_chswitch_done(ctx->vif, false);
2773 }
2774
2775 out:
2776 mutex_unlock(&priv->shrd->mutex);
2777 IWL_DEBUG_MAC80211(priv, "leave\n");
2778 }
2779
2780 static void iwlagn_configure_filter(struct ieee80211_hw *hw,
2781 unsigned int changed_flags,
2782 unsigned int *total_flags,
2783 u64 multicast)
2784 {
2785 struct iwl_priv *priv = hw->priv;
2786 __le32 filter_or = 0, filter_nand = 0;
2787 struct iwl_rxon_context *ctx;
2788
2789 #define CHK(test, flag) do { \
2790 if (*total_flags & (test)) \
2791 filter_or |= (flag); \
2792 else \
2793 filter_nand |= (flag); \
2794 } while (0)
2795
2796 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
2797 changed_flags, *total_flags);
2798
2799 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
2800 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2801 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
2802 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
2803
2804 #undef CHK
2805
2806 mutex_lock(&priv->shrd->mutex);
2807
2808 for_each_context(priv, ctx) {
2809 ctx->staging.filter_flags &= ~filter_nand;
2810 ctx->staging.filter_flags |= filter_or;
2811
2812 /*
2813 * Not committing directly because hardware can perform a scan,
2814 * but we'll eventually commit the filter flags change anyway.
2815 */
2816 }
2817
2818 mutex_unlock(&priv->shrd->mutex);
2819
2820 /*
2821 * Receiving all multicast frames is always enabled by the
2822 * default flags setup in iwl_connection_init_rx_config()
2823 * since we currently do not support programming multicast
2824 * filters into the device.
2825 */
2826 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
2827 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
2828 }
2829
2830 static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
2831 {
2832 struct iwl_priv *priv = hw->priv;
2833
2834 mutex_lock(&priv->shrd->mutex);
2835 IWL_DEBUG_MAC80211(priv, "enter\n");
2836
2837 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
2838 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
2839 goto done;
2840 }
2841 if (iwl_is_rfkill(priv->shrd)) {
2842 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
2843 goto done;
2844 }
2845
2846 /*
2847 * mac80211 will not push any more frames for transmit
2848 * until the flush is completed
2849 */
2850 if (drop) {
2851 IWL_DEBUG_MAC80211(priv, "send flush command\n");
2852 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
2853 IWL_ERR(priv, "flush request fail\n");
2854 goto done;
2855 }
2856 }
2857 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
2858 iwlagn_wait_tx_queue_empty(priv);
2859 done:
2860 mutex_unlock(&priv->shrd->mutex);
2861 IWL_DEBUG_MAC80211(priv, "leave\n");
2862 }
2863
2864 void iwlagn_disable_roc(struct iwl_priv *priv)
2865 {
2866 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2867
2868 lockdep_assert_held(&priv->shrd->mutex);
2869
2870 if (!priv->hw_roc_setup)
2871 return;
2872
2873 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2874 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2875
2876 priv->hw_roc_channel = NULL;
2877
2878 memset(ctx->staging.node_addr, 0, ETH_ALEN);
2879
2880 iwlagn_commit_rxon(priv, ctx);
2881
2882 ctx->is_active = false;
2883 priv->hw_roc_setup = false;
2884 }
2885
2886 static void iwlagn_disable_roc_work(struct work_struct *work)
2887 {
2888 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2889 hw_roc_disable_work.work);
2890
2891 mutex_lock(&priv->shrd->mutex);
2892 iwlagn_disable_roc(priv);
2893 mutex_unlock(&priv->shrd->mutex);
2894 }
2895
2896 static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
2897 struct ieee80211_channel *channel,
2898 enum nl80211_channel_type channel_type,
2899 int duration)
2900 {
2901 struct iwl_priv *priv = hw->priv;
2902 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2903 int err = 0;
2904
2905 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2906 return -EOPNOTSUPP;
2907
2908 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
2909 return -EOPNOTSUPP;
2910
2911 mutex_lock(&priv->shrd->mutex);
2912
2913 /*
2914 * TODO: Remove this hack! Firmware needs to be updated
2915 * to allow longer off-channel periods in scanning for
2916 * this use case, based on a flag (and we'll need an API
2917 * flag in the firmware when it has that).
2918 */
2919 if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && duration > 80)
2920 duration = 80;
2921
2922 if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2923 err = -EBUSY;
2924 goto out;
2925 }
2926
2927 priv->hw_roc_channel = channel;
2928 priv->hw_roc_chantype = channel_type;
2929 priv->hw_roc_duration = duration;
2930 cancel_delayed_work(&priv->hw_roc_disable_work);
2931
2932 if (!ctx->is_active) {
2933 ctx->is_active = true;
2934 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2935 memcpy(ctx->staging.node_addr,
2936 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2937 ETH_ALEN);
2938 memcpy(ctx->staging.bssid_addr,
2939 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2940 ETH_ALEN);
2941 err = iwlagn_commit_rxon(priv, ctx);
2942 if (err)
2943 goto out;
2944 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
2945 RXON_FILTER_PROMISC_MSK |
2946 RXON_FILTER_CTL2HOST_MSK;
2947
2948 err = iwlagn_commit_rxon(priv, ctx);
2949 if (err) {
2950 iwlagn_disable_roc(priv);
2951 goto out;
2952 }
2953 priv->hw_roc_setup = true;
2954 }
2955
2956 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
2957 if (err)
2958 iwlagn_disable_roc(priv);
2959
2960 out:
2961 mutex_unlock(&priv->shrd->mutex);
2962
2963 return err;
2964 }
2965
2966 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
2967 {
2968 struct iwl_priv *priv = hw->priv;
2969
2970 if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2971 return -EOPNOTSUPP;
2972
2973 mutex_lock(&priv->shrd->mutex);
2974 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
2975 iwlagn_disable_roc(priv);
2976 mutex_unlock(&priv->shrd->mutex);
2977
2978 return 0;
2979 }
2980
2981 /*****************************************************************************
2982 *
2983 * driver setup and teardown
2984 *
2985 *****************************************************************************/
2986
2987 static void iwl_setup_deferred_work(struct iwl_priv *priv)
2988 {
2989 priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME);
2990
2991 init_waitqueue_head(&priv->wait_command_queue);
2992
2993 INIT_WORK(&priv->restart, iwl_bg_restart);
2994 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
2995 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
2996 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
2997 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
2998 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
2999 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
3000 iwlagn_disable_roc_work);
3001
3002 iwl_setup_scan_deferred_work(priv);
3003
3004 if (priv->cfg->lib->bt_setup_deferred_work)
3005 priv->cfg->lib->bt_setup_deferred_work(priv);
3006
3007 init_timer(&priv->statistics_periodic);
3008 priv->statistics_periodic.data = (unsigned long)priv;
3009 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
3010
3011 init_timer(&priv->ucode_trace);
3012 priv->ucode_trace.data = (unsigned long)priv;
3013 priv->ucode_trace.function = iwl_bg_ucode_trace;
3014
3015 init_timer(&priv->watchdog);
3016 priv->watchdog.data = (unsigned long)priv;
3017 priv->watchdog.function = iwl_bg_watchdog;
3018 }
3019
3020 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
3021 {
3022 if (priv->cfg->lib->cancel_deferred_work)
3023 priv->cfg->lib->cancel_deferred_work(priv);
3024
3025 cancel_work_sync(&priv->run_time_calib_work);
3026 cancel_work_sync(&priv->beacon_update);
3027
3028 iwl_cancel_scan_deferred_work(priv);
3029
3030 cancel_work_sync(&priv->bt_full_concurrency);
3031 cancel_work_sync(&priv->bt_runtime_config);
3032 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
3033
3034 del_timer_sync(&priv->statistics_periodic);
3035 del_timer_sync(&priv->ucode_trace);
3036 }
3037
3038 static void iwl_init_hw_rates(struct iwl_priv *priv,
3039 struct ieee80211_rate *rates)
3040 {
3041 int i;
3042
3043 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
3044 rates[i].bitrate = iwl_rates[i].ieee * 5;
3045 rates[i].hw_value = i; /* Rate scaling will work on indexes */
3046 rates[i].hw_value_short = i;
3047 rates[i].flags = 0;
3048 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
3049 /*
3050 * If CCK != 1M then set short preamble rate flag.
3051 */
3052 rates[i].flags |=
3053 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
3054 0 : IEEE80211_RATE_SHORT_PREAMBLE;
3055 }
3056 }
3057 }
3058
3059 static int iwl_init_drv(struct iwl_priv *priv)
3060 {
3061 int ret;
3062
3063 spin_lock_init(&priv->shrd->sta_lock);
3064
3065 mutex_init(&priv->shrd->mutex);
3066
3067 priv->ieee_channels = NULL;
3068 priv->ieee_rates = NULL;
3069 priv->band = IEEE80211_BAND_2GHZ;
3070
3071 priv->iw_mode = NL80211_IFTYPE_STATION;
3072 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
3073 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
3074 priv->agg_tids_count = 0;
3075
3076 /* initialize force reset */
3077 priv->force_reset[IWL_RF_RESET].reset_duration =
3078 IWL_DELAY_NEXT_FORCE_RF_RESET;
3079 priv->force_reset[IWL_FW_RESET].reset_duration =
3080 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
3081
3082 priv->rx_statistics_jiffies = jiffies;
3083
3084 /* Choose which receivers/antennas to use */
3085 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
3086
3087 iwl_init_scan_params(priv);
3088
3089 /* init bt coex */
3090 if (priv->cfg->bt_params &&
3091 priv->cfg->bt_params->advanced_bt_coexist) {
3092 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3093 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3094 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
3095 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3096 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3097 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
3098 }
3099
3100 ret = iwl_init_channel_map(priv);
3101 if (ret) {
3102 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3103 goto err;
3104 }
3105
3106 ret = iwl_init_geos(priv);
3107 if (ret) {
3108 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3109 goto err_free_channel_map;
3110 }
3111 iwl_init_hw_rates(priv, priv->ieee_rates);
3112
3113 return 0;
3114
3115 err_free_channel_map:
3116 iwl_free_channel_map(priv);
3117 err:
3118 return ret;
3119 }
3120
3121 static void iwl_uninit_drv(struct iwl_priv *priv)
3122 {
3123 iwl_calib_free_results(priv);
3124 iwl_free_geos(priv);
3125 iwl_free_channel_map(priv);
3126 kfree(priv->scan_cmd);
3127 kfree(priv->beacon_cmd);
3128 #ifdef CONFIG_IWLWIFI_DEBUGFS
3129 kfree(priv->wowlan_sram);
3130 #endif
3131 }
3132
3133 static void iwl_mac_rssi_callback(struct ieee80211_hw *hw,
3134 enum ieee80211_rssi_event rssi_event)
3135 {
3136 struct iwl_priv *priv = hw->priv;
3137
3138 mutex_lock(&priv->shrd->mutex);
3139
3140 if (priv->cfg->bt_params &&
3141 priv->cfg->bt_params->advanced_bt_coexist) {
3142 if (rssi_event == RSSI_EVENT_LOW)
3143 priv->bt_enable_pspoll = true;
3144 else if (rssi_event == RSSI_EVENT_HIGH)
3145 priv->bt_enable_pspoll = false;
3146
3147 iwlagn_send_advance_bt_config(priv);
3148 } else {
3149 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
3150 "ignoring RSSI callback\n");
3151 }
3152
3153 mutex_unlock(&priv->shrd->mutex);
3154 }
3155
3156 struct ieee80211_ops iwlagn_hw_ops = {
3157 .tx = iwlagn_mac_tx,
3158 .start = iwlagn_mac_start,
3159 .stop = iwlagn_mac_stop,
3160 #ifdef CONFIG_PM
3161 .suspend = iwlagn_mac_suspend,
3162 .resume = iwlagn_mac_resume,
3163 #endif
3164 .add_interface = iwl_mac_add_interface,
3165 .remove_interface = iwl_mac_remove_interface,
3166 .change_interface = iwl_mac_change_interface,
3167 .config = iwlagn_mac_config,
3168 .configure_filter = iwlagn_configure_filter,
3169 .set_key = iwlagn_mac_set_key,
3170 .update_tkip_key = iwlagn_mac_update_tkip_key,
3171 .set_rekey_data = iwlagn_mac_set_rekey_data,
3172 .conf_tx = iwl_mac_conf_tx,
3173 .bss_info_changed = iwlagn_bss_info_changed,
3174 .ampdu_action = iwlagn_mac_ampdu_action,
3175 .hw_scan = iwl_mac_hw_scan,
3176 .sta_notify = iwlagn_mac_sta_notify,
3177 .sta_add = iwlagn_mac_sta_add,
3178 .sta_remove = iwl_mac_sta_remove,
3179 .channel_switch = iwlagn_mac_channel_switch,
3180 .flush = iwlagn_mac_flush,
3181 .tx_last_beacon = iwl_mac_tx_last_beacon,
3182 .remain_on_channel = iwl_mac_remain_on_channel,
3183 .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
3184 .rssi_callback = iwl_mac_rssi_callback,
3185 CFG80211_TESTMODE_CMD(iwl_testmode_cmd)
3186 CFG80211_TESTMODE_DUMP(iwl_testmode_dump)
3187 };
3188
3189 static u32 iwl_hw_detect(struct iwl_priv *priv)
3190 {
3191 return iwl_read32(bus(priv), CSR_HW_REV);
3192 }
3193
3194 /* Size of one Rx buffer in host DRAM */
3195 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
3196 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
3197
3198 static int iwl_set_hw_params(struct iwl_priv *priv)
3199 {
3200 if (iwlagn_mod_params.amsdu_size_8K)
3201 hw_params(priv).rx_page_order =
3202 get_order(IWL_RX_BUF_SIZE_8K);
3203 else
3204 hw_params(priv).rx_page_order =
3205 get_order(IWL_RX_BUF_SIZE_4K);
3206
3207 if (iwlagn_mod_params.disable_11n)
3208 priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
3209
3210 /* Device-specific setup */
3211 return priv->cfg->lib->set_hw_params(priv);
3212 }
3213
3214 /* This function both allocates and initializes hw and priv. */
3215 static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
3216 {
3217 struct iwl_priv *priv;
3218 /* mac80211 allocates memory for this device instance, including
3219 * space for this driver's private structure */
3220 struct ieee80211_hw *hw;
3221
3222 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
3223 if (hw == NULL) {
3224 pr_err("%s: Can not allocate network device\n",
3225 cfg->name);
3226 goto out;
3227 }
3228
3229 priv = hw->priv;
3230 priv->hw = hw;
3231
3232 out:
3233 return hw;
3234 }
3235
3236 int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
3237 struct iwl_cfg *cfg)
3238 {
3239 int err = 0;
3240 struct iwl_priv *priv;
3241 struct ieee80211_hw *hw;
3242 u16 num_mac;
3243 u32 hw_rev;
3244
3245 /************************
3246 * 1. Allocating HW data
3247 ************************/
3248 hw = iwl_alloc_all(cfg);
3249 if (!hw) {
3250 err = -ENOMEM;
3251 goto out;
3252 }
3253
3254 priv = hw->priv;
3255 priv->bus = bus;
3256 priv->shrd = &priv->_shrd;
3257 priv->shrd->bus = bus;
3258 priv->shrd->priv = priv;
3259 bus_set_drv_data(priv->bus, priv->shrd);
3260
3261 priv->shrd->trans = trans_ops->alloc(priv->shrd);
3262 if (priv->shrd->trans == NULL) {
3263 err = -ENOMEM;
3264 goto out_free_traffic_mem;
3265 }
3266
3267 /* At this point both hw and priv are allocated. */
3268
3269 SET_IEEE80211_DEV(hw, priv->bus->dev);
3270
3271 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3272 priv->cfg = cfg;
3273
3274 /* is antenna coupling more than 35dB ? */
3275 priv->bt_ant_couple_ok =
3276 (iwlagn_mod_params.ant_coupling >
3277 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3278 true : false;
3279
3280 /* enable/disable bt channel inhibition */
3281 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
3282 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3283 (priv->bt_ch_announce) ? "On" : "Off");
3284
3285 if (iwl_alloc_traffic_mem(priv))
3286 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
3287
3288 /* these spin locks will be used in apm_ops.init and EEPROM access
3289 * we should init now
3290 */
3291 spin_lock_init(&bus(priv)->reg_lock);
3292 spin_lock_init(&priv->shrd->lock);
3293
3294 /*
3295 * stop and reset the on-board processor just in case it is in a
3296 * strange state ... like being left stranded by a primary kernel
3297 * and this is now the kdump kernel trying to start up
3298 */
3299 iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
3300
3301 /***********************
3302 * 3. Read REV register
3303 ***********************/
3304 hw_rev = iwl_hw_detect(priv);
3305 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
3306 priv->cfg->name, hw_rev);
3307
3308 err = iwl_trans_request_irq(trans(priv));
3309 if (err)
3310 goto out_free_trans;
3311
3312 if (iwl_trans_prepare_card_hw(trans(priv))) {
3313 err = -EIO;
3314 IWL_WARN(priv, "Failed, HW not ready\n");
3315 goto out_free_trans;
3316 }
3317
3318 /*****************
3319 * 4. Read EEPROM
3320 *****************/
3321 /* Read the EEPROM */
3322 err = iwl_eeprom_init(priv, hw_rev);
3323 if (err) {
3324 IWL_ERR(priv, "Unable to init EEPROM\n");
3325 goto out_free_trans;
3326 }
3327 err = iwl_eeprom_check_version(priv);
3328 if (err)
3329 goto out_free_eeprom;
3330
3331 err = iwl_eeprom_check_sku(priv);
3332 if (err)
3333 goto out_free_eeprom;
3334
3335 /* extract MAC Address */
3336 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
3337 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
3338 priv->hw->wiphy->addresses = priv->addresses;
3339 priv->hw->wiphy->n_addresses = 1;
3340 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
3341 if (num_mac > 1) {
3342 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
3343 ETH_ALEN);
3344 priv->addresses[1].addr[5]++;
3345 priv->hw->wiphy->n_addresses++;
3346 }
3347
3348 /************************
3349 * 5. Setup HW constants
3350 ************************/
3351 if (iwl_set_hw_params(priv)) {
3352 err = -ENOENT;
3353 IWL_ERR(priv, "failed to set hw parameters\n");
3354 goto out_free_eeprom;
3355 }
3356
3357 /*******************
3358 * 6. Setup priv
3359 *******************/
3360
3361 err = iwl_init_drv(priv);
3362 if (err)
3363 goto out_free_eeprom;
3364 /* At this point both hw and priv are initialized. */
3365
3366 /********************
3367 * 7. Setup services
3368 ********************/
3369 iwl_setup_deferred_work(priv);
3370 iwl_setup_rx_handlers(priv);
3371 iwl_testmode_init(priv);
3372
3373 /*********************************************
3374 * 8. Enable interrupts
3375 *********************************************/
3376
3377 iwl_enable_rfkill_int(priv);
3378
3379 /* If platform's RF_KILL switch is NOT set to KILL */
3380 if (iwl_read32(bus(priv),
3381 CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3382 clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3383 else
3384 set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3385
3386 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
3387 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
3388
3389 iwl_power_initialize(priv);
3390 iwl_tt_initialize(priv);
3391
3392 init_completion(&priv->firmware_loading_complete);
3393
3394 err = iwl_request_firmware(priv, true);
3395 if (err)
3396 goto out_destroy_workqueue;
3397
3398 return 0;
3399
3400 out_destroy_workqueue:
3401 destroy_workqueue(priv->shrd->workqueue);
3402 priv->shrd->workqueue = NULL;
3403 iwl_uninit_drv(priv);
3404 out_free_eeprom:
3405 iwl_eeprom_free(priv);
3406 out_free_trans:
3407 iwl_trans_free(trans(priv));
3408 out_free_traffic_mem:
3409 iwl_free_traffic_mem(priv);
3410 ieee80211_free_hw(priv->hw);
3411 out:
3412 return err;
3413 }
3414
3415 void __devexit iwl_remove(struct iwl_priv * priv)
3416 {
3417 wait_for_completion(&priv->firmware_loading_complete);
3418
3419 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
3420
3421 iwl_dbgfs_unregister(priv);
3422 sysfs_remove_group(&priv->bus->dev->kobj,
3423 &iwl_attribute_group);
3424
3425 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3426 * to be called and iwl_down since we are removing the device
3427 * we need to set STATUS_EXIT_PENDING bit.
3428 */
3429 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
3430
3431 iwl_testmode_cleanup(priv);
3432 iwl_leds_exit(priv);
3433
3434 if (priv->mac80211_registered) {
3435 ieee80211_unregister_hw(priv->hw);
3436 priv->mac80211_registered = 0;
3437 }
3438
3439 /* Reset to low power before unloading driver. */
3440 iwl_apm_stop(priv);
3441
3442 iwl_tt_exit(priv);
3443
3444 /* make sure we flush any pending irq or
3445 * tasklet for the driver */
3446 iwl_trans_disable_sync_irq(trans(priv));
3447
3448 iwl_dealloc_ucode(priv);
3449
3450 iwl_trans_rx_free(trans(priv));
3451 iwl_trans_tx_free(trans(priv));
3452
3453 iwl_eeprom_free(priv);
3454
3455 /*netif_stop_queue(dev); */
3456 flush_workqueue(priv->shrd->workqueue);
3457
3458 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3459 * priv->shrd->workqueue... so we can't take down the workqueue
3460 * until now... */
3461 destroy_workqueue(priv->shrd->workqueue);
3462 priv->shrd->workqueue = NULL;
3463 iwl_free_traffic_mem(priv);
3464
3465 iwl_trans_free(trans(priv));
3466
3467 bus_set_drv_data(priv->bus, NULL);
3468
3469 iwl_uninit_drv(priv);
3470
3471 dev_kfree_skb(priv->beacon_skb);
3472
3473 ieee80211_free_hw(priv->hw);
3474 }
3475
3476
3477 /*****************************************************************************
3478 *
3479 * driver and module entry point
3480 *
3481 *****************************************************************************/
3482 static int __init iwl_init(void)
3483 {
3484
3485 int ret;
3486 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
3487 pr_info(DRV_COPYRIGHT "\n");
3488
3489 ret = iwlagn_rate_control_register();
3490 if (ret) {
3491 pr_err("Unable to register rate control algorithm: %d\n", ret);
3492 return ret;
3493 }
3494
3495 ret = iwl_pci_register_driver();
3496
3497 if (ret)
3498 goto error_register;
3499 return ret;
3500
3501 error_register:
3502 iwlagn_rate_control_unregister();
3503 return ret;
3504 }
3505
3506 static void __exit iwl_exit(void)
3507 {
3508 iwl_pci_unregister_driver();
3509 iwlagn_rate_control_unregister();
3510 }
3511
3512 module_exit(iwl_exit);
3513 module_init(iwl_init);
3514
3515 #ifdef CONFIG_IWLWIFI_DEBUG
3516 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
3517 S_IRUGO | S_IWUSR);
3518 MODULE_PARM_DESC(debug, "debug output mask");
3519 #endif
3520
3521 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
3522 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
3523 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
3524 MODULE_PARM_DESC(queues_num, "number of hw queues.");
3525 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
3526 MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
3527 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
3528 int, S_IRUGO);
3529 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
3530 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
3531 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
3532
3533 module_param_named(ucode_alternative,
3534 iwlagn_mod_params.wanted_ucode_alternative,
3535 int, S_IRUGO);
3536 MODULE_PARM_DESC(ucode_alternative,
3537 "specify ucode alternative to use from ucode file");
3538
3539 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
3540 int, S_IRUGO);
3541 MODULE_PARM_DESC(antenna_coupling,
3542 "specify antenna coupling in dB (defualt: 0 dB)");
3543
3544 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
3545 bool, S_IRUGO);
3546 MODULE_PARM_DESC(bt_ch_inhibition,
3547 "Enable BT channel inhibition (default: enable)");
3548
3549 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
3550 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
3551
3552 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
3553 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
3554
3555 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
3556 MODULE_PARM_DESC(wd_disable,
3557 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3558
3559 /*
3560 * set bt_coex_active to true, uCode will do kill/defer
3561 * every time the priority line is asserted (BT is sending signals on the
3562 * priority line in the PCIx).
3563 * set bt_coex_active to false, uCode will ignore the BT activity and
3564 * perform the normal operation
3565 *
3566 * User might experience transmit issue on some platform due to WiFi/BT
3567 * co-exist problem. The possible behaviors are:
3568 * Able to scan and finding all the available AP
3569 * Not able to associate with any AP
3570 * On those platforms, WiFi communication can be restored by set
3571 * "bt_coex_active" module parameter to "false"
3572 *
3573 * default: bt_coex_active = true (BT_COEX_ENABLE)
3574 */
3575 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
3576 bool, S_IRUGO);
3577 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
3578
3579 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
3580 MODULE_PARM_DESC(led_mode, "0=system default, "
3581 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3582
3583 module_param_named(power_save, iwlagn_mod_params.power_save,
3584 bool, S_IRUGO);
3585 MODULE_PARM_DESC(power_save,
3586 "enable WiFi power management (default: disable)");
3587
3588 module_param_named(power_level, iwlagn_mod_params.power_level,
3589 int, S_IRUGO);
3590 MODULE_PARM_DESC(power_level,
3591 "default power save level (range from 1 - 5, default: 1)");
3592
3593 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
3594 bool, S_IRUGO);
3595 MODULE_PARM_DESC(auto_agg,
3596 "enable agg w/o check traffic load (default: enable)");
3597
3598 /*
3599 * For now, keep using power level 1 instead of automatically
3600 * adjusting ...
3601 */
3602 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
3603 bool, S_IRUGO);
3604 MODULE_PARM_DESC(no_sleep_autoadjust,
3605 "don't automatically adjust sleep level "
3606 "according to maximum network latency (default: true)");
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