projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
iwlagn: iwl-trans.c can't dereference iwl_priv any more
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
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 int i;
621
622 /*
623 * The default context is always valid,
624 * the PAN context depends on uCode.
625 */
626 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
627 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
628 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
629
630 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
631 priv->contexts[i].ctxid = i;
632
633 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
634 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
635 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
636 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
637 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
638 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
639 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
640 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
641 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
642 BIT(NL80211_IFTYPE_ADHOC);
643 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
644 BIT(NL80211_IFTYPE_STATION);
645 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
646 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
647 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
648 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
649
650 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
651 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
652 REPLY_WIPAN_RXON_TIMING;
653 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
654 REPLY_WIPAN_RXON_ASSOC;
655 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
656 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
657 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
658 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
659 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
660 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
661 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
662
663 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
664 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
665 BIT(NL80211_IFTYPE_P2P_CLIENT) |
666 BIT(NL80211_IFTYPE_P2P_GO);
667
668 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
669 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
670 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
671
672 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
673 }
674
675
676 struct iwlagn_ucode_capabilities {
677 u32 max_probe_length;
678 u32 standard_phy_calibration_size;
679 u32 flags;
680 };
681
682 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
683 static int iwl_mac_setup_register(struct iwl_priv *priv,
684 struct iwlagn_ucode_capabilities *capa);
685
686 #define UCODE_EXPERIMENTAL_INDEX 100
687 #define UCODE_EXPERIMENTAL_TAG "exp"
688
689 static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
690 {
691 const char *name_pre = priv->cfg->fw_name_pre;
692 char tag[8];
693
694 if (first) {
695 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
696 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
697 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
698 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
699 #endif
700 priv->fw_index = priv->cfg->ucode_api_max;
701 sprintf(tag, "%d", priv->fw_index);
702 } else {
703 priv->fw_index--;
704 sprintf(tag, "%d", priv->fw_index);
705 }
706
707 if (priv->fw_index < priv->cfg->ucode_api_min) {
708 IWL_ERR(priv, "no suitable firmware found!\n");
709 return -ENOENT;
710 }
711
712 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
713
714 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
715 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
716 ? "EXPERIMENTAL " : "",
717 priv->firmware_name);
718
719 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
720 priv->bus->dev,
721 GFP_KERNEL, priv, iwl_ucode_callback);
722 }
723
724 struct iwlagn_firmware_pieces {
725 const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
726 size_t inst_size, data_size, init_size, init_data_size,
727 wowlan_inst_size, wowlan_data_size;
728
729 u32 build;
730
731 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
732 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
733 };
734
735 static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
736 const struct firmware *ucode_raw,
737 struct iwlagn_firmware_pieces *pieces)
738 {
739 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
740 u32 api_ver, hdr_size;
741 const u8 *src;
742
743 priv->ucode_ver = le32_to_cpu(ucode->ver);
744 api_ver = IWL_UCODE_API(priv->ucode_ver);
745
746 switch (api_ver) {
747 default:
748 hdr_size = 28;
749 if (ucode_raw->size < hdr_size) {
750 IWL_ERR(priv, "File size too small!\n");
751 return -EINVAL;
752 }
753 pieces->build = le32_to_cpu(ucode->u.v2.build);
754 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
755 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
756 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
757 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
758 src = ucode->u.v2.data;
759 break;
760 case 0:
761 case 1:
762 case 2:
763 hdr_size = 24;
764 if (ucode_raw->size < hdr_size) {
765 IWL_ERR(priv, "File size too small!\n");
766 return -EINVAL;
767 }
768 pieces->build = 0;
769 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
770 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
771 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
772 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
773 src = ucode->u.v1.data;
774 break;
775 }
776
777 /* Verify size of file vs. image size info in file's header */
778 if (ucode_raw->size != hdr_size + pieces->inst_size +
779 pieces->data_size + pieces->init_size +
780 pieces->init_data_size) {
781
782 IWL_ERR(priv,
783 "uCode file size %d does not match expected size\n",
784 (int)ucode_raw->size);
785 return -EINVAL;
786 }
787
788 pieces->inst = src;
789 src += pieces->inst_size;
790 pieces->data = src;
791 src += pieces->data_size;
792 pieces->init = src;
793 src += pieces->init_size;
794 pieces->init_data = src;
795 src += pieces->init_data_size;
796
797 return 0;
798 }
799
800 static int iwlagn_load_firmware(struct iwl_priv *priv,
801 const struct firmware *ucode_raw,
802 struct iwlagn_firmware_pieces *pieces,
803 struct iwlagn_ucode_capabilities *capa)
804 {
805 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
806 struct iwl_ucode_tlv *tlv;
807 size_t len = ucode_raw->size;
808 const u8 *data;
809 int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
810 int tmp;
811 u64 alternatives;
812 u32 tlv_len;
813 enum iwl_ucode_tlv_type tlv_type;
814 const u8 *tlv_data;
815
816 if (len < sizeof(*ucode)) {
817 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
818 return -EINVAL;
819 }
820
821 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
822 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
823 le32_to_cpu(ucode->magic));
824 return -EINVAL;
825 }
826
827 /*
828 * Check which alternatives are present, and "downgrade"
829 * when the chosen alternative is not present, warning
830 * the user when that happens. Some files may not have
831 * any alternatives, so don't warn in that case.
832 */
833 alternatives = le64_to_cpu(ucode->alternatives);
834 tmp = wanted_alternative;
835 if (wanted_alternative > 63)
836 wanted_alternative = 63;
837 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
838 wanted_alternative--;
839 if (wanted_alternative && wanted_alternative != tmp)
840 IWL_WARN(priv,
841 "uCode alternative %d not available, choosing %d\n",
842 tmp, wanted_alternative);
843
844 priv->ucode_ver = le32_to_cpu(ucode->ver);
845 pieces->build = le32_to_cpu(ucode->build);
846 data = ucode->data;
847
848 len -= sizeof(*ucode);
849
850 while (len >= sizeof(*tlv)) {
851 u16 tlv_alt;
852
853 len -= sizeof(*tlv);
854 tlv = (void *)data;
855
856 tlv_len = le32_to_cpu(tlv->length);
857 tlv_type = le16_to_cpu(tlv->type);
858 tlv_alt = le16_to_cpu(tlv->alternative);
859 tlv_data = tlv->data;
860
861 if (len < tlv_len) {
862 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
863 len, tlv_len);
864 return -EINVAL;
865 }
866 len -= ALIGN(tlv_len, 4);
867 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
868
869 /*
870 * Alternative 0 is always valid.
871 *
872 * Skip alternative TLVs that are not selected.
873 */
874 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
875 continue;
876
877 switch (tlv_type) {
878 case IWL_UCODE_TLV_INST:
879 pieces->inst = tlv_data;
880 pieces->inst_size = tlv_len;
881 break;
882 case IWL_UCODE_TLV_DATA:
883 pieces->data = tlv_data;
884 pieces->data_size = tlv_len;
885 break;
886 case IWL_UCODE_TLV_INIT:
887 pieces->init = tlv_data;
888 pieces->init_size = tlv_len;
889 break;
890 case IWL_UCODE_TLV_INIT_DATA:
891 pieces->init_data = tlv_data;
892 pieces->init_data_size = tlv_len;
893 break;
894 case IWL_UCODE_TLV_BOOT:
895 IWL_ERR(priv, "Found unexpected BOOT ucode\n");
896 break;
897 case IWL_UCODE_TLV_PROBE_MAX_LEN:
898 if (tlv_len != sizeof(u32))
899 goto invalid_tlv_len;
900 capa->max_probe_length =
901 le32_to_cpup((__le32 *)tlv_data);
902 break;
903 case IWL_UCODE_TLV_PAN:
904 if (tlv_len)
905 goto invalid_tlv_len;
906 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
907 break;
908 case IWL_UCODE_TLV_FLAGS:
909 /* must be at least one u32 */
910 if (tlv_len < sizeof(u32))
911 goto invalid_tlv_len;
912 /* and a proper number of u32s */
913 if (tlv_len % sizeof(u32))
914 goto invalid_tlv_len;
915 /*
916 * This driver only reads the first u32 as
917 * right now no more features are defined,
918 * if that changes then either the driver
919 * will not work with the new firmware, or
920 * it'll not take advantage of new features.
921 */
922 capa->flags = le32_to_cpup((__le32 *)tlv_data);
923 break;
924 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
925 if (tlv_len != sizeof(u32))
926 goto invalid_tlv_len;
927 pieces->init_evtlog_ptr =
928 le32_to_cpup((__le32 *)tlv_data);
929 break;
930 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
931 if (tlv_len != sizeof(u32))
932 goto invalid_tlv_len;
933 pieces->init_evtlog_size =
934 le32_to_cpup((__le32 *)tlv_data);
935 break;
936 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
937 if (tlv_len != sizeof(u32))
938 goto invalid_tlv_len;
939 pieces->init_errlog_ptr =
940 le32_to_cpup((__le32 *)tlv_data);
941 break;
942 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
943 if (tlv_len != sizeof(u32))
944 goto invalid_tlv_len;
945 pieces->inst_evtlog_ptr =
946 le32_to_cpup((__le32 *)tlv_data);
947 break;
948 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
949 if (tlv_len != sizeof(u32))
950 goto invalid_tlv_len;
951 pieces->inst_evtlog_size =
952 le32_to_cpup((__le32 *)tlv_data);
953 break;
954 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
955 if (tlv_len != sizeof(u32))
956 goto invalid_tlv_len;
957 pieces->inst_errlog_ptr =
958 le32_to_cpup((__le32 *)tlv_data);
959 break;
960 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
961 if (tlv_len)
962 goto invalid_tlv_len;
963 priv->enhance_sensitivity_table = true;
964 break;
965 case IWL_UCODE_TLV_WOWLAN_INST:
966 pieces->wowlan_inst = tlv_data;
967 pieces->wowlan_inst_size = tlv_len;
968 break;
969 case IWL_UCODE_TLV_WOWLAN_DATA:
970 pieces->wowlan_data = tlv_data;
971 pieces->wowlan_data_size = tlv_len;
972 break;
973 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
974 if (tlv_len != sizeof(u32))
975 goto invalid_tlv_len;
976 capa->standard_phy_calibration_size =
977 le32_to_cpup((__le32 *)tlv_data);
978 break;
979 default:
980 IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type);
981 break;
982 }
983 }
984
985 if (len) {
986 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
987 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
988 return -EINVAL;
989 }
990
991 return 0;
992
993 invalid_tlv_len:
994 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
995 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
996
997 return -EINVAL;
998 }
999
1000 /**
1001 * iwl_ucode_callback - callback when firmware was loaded
1002 *
1003 * If loaded successfully, copies the firmware into buffers
1004 * for the card to fetch (via DMA).
1005 */
1006 static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
1007 {
1008 struct iwl_priv *priv = context;
1009 struct iwl_ucode_header *ucode;
1010 int err;
1011 struct iwlagn_firmware_pieces pieces;
1012 const unsigned int api_max = priv->cfg->ucode_api_max;
1013 unsigned int api_ok = priv->cfg->ucode_api_ok;
1014 const unsigned int api_min = priv->cfg->ucode_api_min;
1015 u32 api_ver;
1016 char buildstr[25];
1017 u32 build;
1018 struct iwlagn_ucode_capabilities ucode_capa = {
1019 .max_probe_length = 200,
1020 .standard_phy_calibration_size =
1021 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
1022 };
1023
1024 if (!api_ok)
1025 api_ok = api_max;
1026
1027 memset(&pieces, 0, sizeof(pieces));
1028
1029 if (!ucode_raw) {
1030 if (priv->fw_index <= api_ok)
1031 IWL_ERR(priv,
1032 "request for firmware file '%s' failed.\n",
1033 priv->firmware_name);
1034 goto try_again;
1035 }
1036
1037 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
1038 priv->firmware_name, ucode_raw->size);
1039
1040 /* Make sure that we got at least the API version number */
1041 if (ucode_raw->size < 4) {
1042 IWL_ERR(priv, "File size way too small!\n");
1043 goto try_again;
1044 }
1045
1046 /* Data from ucode file: header followed by uCode images */
1047 ucode = (struct iwl_ucode_header *)ucode_raw->data;
1048
1049 if (ucode->ver)
1050 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
1051 else
1052 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
1053 &ucode_capa);
1054
1055 if (err)
1056 goto try_again;
1057
1058 api_ver = IWL_UCODE_API(priv->ucode_ver);
1059 build = pieces.build;
1060
1061 /*
1062 * api_ver should match the api version forming part of the
1063 * firmware filename ... but we don't check for that and only rely
1064 * on the API version read from firmware header from here on forward
1065 */
1066 /* no api version check required for experimental uCode */
1067 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1068 if (api_ver < api_min || api_ver > api_max) {
1069 IWL_ERR(priv,
1070 "Driver unable to support your firmware API. "
1071 "Driver supports v%u, firmware is v%u.\n",
1072 api_max, api_ver);
1073 goto try_again;
1074 }
1075
1076 if (api_ver < api_ok) {
1077 if (api_ok != api_max)
1078 IWL_ERR(priv, "Firmware has old API version, "
1079 "expected v%u through v%u, got v%u.\n",
1080 api_ok, api_max, api_ver);
1081 else
1082 IWL_ERR(priv, "Firmware has old API version, "
1083 "expected v%u, got v%u.\n",
1084 api_max, api_ver);
1085 IWL_ERR(priv, "New firmware can be obtained from "
1086 "http://www.intellinuxwireless.org/.\n");
1087 }
1088 }
1089
1090 if (build)
1091 sprintf(buildstr, " build %u%s", build,
1092 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
1093 ? " (EXP)" : "");
1094 else
1095 buildstr[0] = '\0';
1096
1097 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
1098 IWL_UCODE_MAJOR(priv->ucode_ver),
1099 IWL_UCODE_MINOR(priv->ucode_ver),
1100 IWL_UCODE_API(priv->ucode_ver),
1101 IWL_UCODE_SERIAL(priv->ucode_ver),
1102 buildstr);
1103
1104 snprintf(priv->hw->wiphy->fw_version,
1105 sizeof(priv->hw->wiphy->fw_version),
1106 "%u.%u.%u.%u%s",
1107 IWL_UCODE_MAJOR(priv->ucode_ver),
1108 IWL_UCODE_MINOR(priv->ucode_ver),
1109 IWL_UCODE_API(priv->ucode_ver),
1110 IWL_UCODE_SERIAL(priv->ucode_ver),
1111 buildstr);
1112
1113 /*
1114 * For any of the failures below (before allocating pci memory)
1115 * we will try to load a version with a smaller API -- maybe the
1116 * user just got a corrupted version of the latest API.
1117 */
1118
1119 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1120 priv->ucode_ver);
1121 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1122 pieces.inst_size);
1123 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1124 pieces.data_size);
1125 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1126 pieces.init_size);
1127 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1128 pieces.init_data_size);
1129
1130 /* Verify that uCode images will fit in card's SRAM */
1131 if (pieces.inst_size > hw_params(priv).max_inst_size) {
1132 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1133 pieces.inst_size);
1134 goto try_again;
1135 }
1136
1137 if (pieces.data_size > hw_params(priv).max_data_size) {
1138 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1139 pieces.data_size);
1140 goto try_again;
1141 }
1142
1143 if (pieces.init_size > hw_params(priv).max_inst_size) {
1144 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1145 pieces.init_size);
1146 goto try_again;
1147 }
1148
1149 if (pieces.init_data_size > hw_params(priv).max_data_size) {
1150 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1151 pieces.init_data_size);
1152 goto try_again;
1153 }
1154
1155 /* Allocate ucode buffers for card's bus-master loading ... */
1156
1157 /* Runtime instructions and 2 copies of data:
1158 * 1) unmodified from disk
1159 * 2) backup cache for save/restore during power-downs */
1160 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code,
1161 pieces.inst, pieces.inst_size))
1162 goto err_pci_alloc;
1163 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data,
1164 pieces.data, pieces.data_size))
1165 goto err_pci_alloc;
1166
1167 /* Initialization instructions and data */
1168 if (pieces.init_size && pieces.init_data_size) {
1169 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code,
1170 pieces.init, pieces.init_size))
1171 goto err_pci_alloc;
1172 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data,
1173 pieces.init_data, pieces.init_data_size))
1174 goto err_pci_alloc;
1175 }
1176
1177 /* WoWLAN instructions and data */
1178 if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
1179 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code,
1180 pieces.wowlan_inst,
1181 pieces.wowlan_inst_size))
1182 goto err_pci_alloc;
1183 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data,
1184 pieces.wowlan_data,
1185 pieces.wowlan_data_size))
1186 goto err_pci_alloc;
1187 }
1188
1189 /* Now that we can no longer fail, copy information */
1190
1191 /*
1192 * The (size - 16) / 12 formula is based on the information recorded
1193 * for each event, which is of mode 1 (including timestamp) for all
1194 * new microcodes that include this information.
1195 */
1196 priv->init_evtlog_ptr = pieces.init_evtlog_ptr;
1197 if (pieces.init_evtlog_size)
1198 priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
1199 else
1200 priv->init_evtlog_size =
1201 priv->cfg->base_params->max_event_log_size;
1202 priv->init_errlog_ptr = pieces.init_errlog_ptr;
1203 priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
1204 if (pieces.inst_evtlog_size)
1205 priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
1206 else
1207 priv->inst_evtlog_size =
1208 priv->cfg->base_params->max_event_log_size;
1209 priv->inst_errlog_ptr = pieces.inst_errlog_ptr;
1210
1211 priv->new_scan_threshold_behaviour =
1212 !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1213
1214 if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1215 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
1216
1217 /*
1218 * if not PAN, then don't support P2P -- might be a uCode
1219 * packaging bug or due to the eeprom check above
1220 */
1221 if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN))
1222 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1223
1224 if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
1225 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
1226 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
1227 } else {
1228 priv->sta_key_max_num = STA_KEY_MAX_NUM;
1229 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
1230 }
1231
1232 /*
1233 * figure out the offset of chain noise reset and gain commands
1234 * base on the size of standard phy calibration commands table size
1235 */
1236 if (ucode_capa.standard_phy_calibration_size >
1237 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1238 ucode_capa.standard_phy_calibration_size =
1239 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1240
1241 priv->phy_calib_chain_noise_reset_cmd =
1242 ucode_capa.standard_phy_calibration_size;
1243 priv->phy_calib_chain_noise_gain_cmd =
1244 ucode_capa.standard_phy_calibration_size + 1;
1245
1246 /* initialize all valid contexts */
1247 iwl_init_context(priv, ucode_capa.flags);
1248
1249 /**************************************************
1250 * This is still part of probe() in a sense...
1251 *
1252 * 9. Setup and register with mac80211 and debugfs
1253 **************************************************/
1254 err = iwl_mac_setup_register(priv, &ucode_capa);
1255 if (err)
1256 goto out_unbind;
1257
1258 err = iwl_dbgfs_register(priv, DRV_NAME);
1259 if (err)
1260 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1261
1262 err = sysfs_create_group(&(priv->bus->dev->kobj),
1263 &iwl_attribute_group);
1264 if (err) {
1265 IWL_ERR(priv, "failed to create sysfs device attributes\n");
1266 goto out_unbind;
1267 }
1268
1269 /* We have our copies now, allow OS release its copies */
1270 release_firmware(ucode_raw);
1271 complete(&priv->firmware_loading_complete);
1272 return;
1273
1274 try_again:
1275 /* try next, if any */
1276 if (iwl_request_firmware(priv, false))
1277 goto out_unbind;
1278 release_firmware(ucode_raw);
1279 return;
1280
1281 err_pci_alloc:
1282 IWL_ERR(priv, "failed to allocate pci memory\n");
1283 iwl_dealloc_ucode(priv);
1284 out_unbind:
1285 complete(&priv->firmware_loading_complete);
1286 device_release_driver(priv->bus->dev);
1287 release_firmware(ucode_raw);
1288 }
1289
1290 static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1291 {
1292 struct iwl_ct_kill_config cmd;
1293 struct iwl_ct_kill_throttling_config adv_cmd;
1294 unsigned long flags;
1295 int ret = 0;
1296
1297 spin_lock_irqsave(&priv->shrd->lock, flags);
1298 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
1299 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
1300 spin_unlock_irqrestore(&priv->shrd->lock, flags);
1301 priv->thermal_throttle.ct_kill_toggle = false;
1302
1303 if (priv->cfg->base_params->support_ct_kill_exit) {
1304 adv_cmd.critical_temperature_enter =
1305 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1306 adv_cmd.critical_temperature_exit =
1307 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
1308
1309 ret = iwl_trans_send_cmd_pdu(trans(priv),
1310 REPLY_CT_KILL_CONFIG_CMD,
1311 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
1312 if (ret)
1313 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1314 else
1315 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1316 "succeeded, critical temperature enter is %d,"
1317 "exit is %d\n",
1318 hw_params(priv).ct_kill_threshold,
1319 hw_params(priv).ct_kill_exit_threshold);
1320 } else {
1321 cmd.critical_temperature_R =
1322 cpu_to_le32(hw_params(priv).ct_kill_threshold);
1323
1324 ret = iwl_trans_send_cmd_pdu(trans(priv),
1325 REPLY_CT_KILL_CONFIG_CMD,
1326 CMD_SYNC, sizeof(cmd), &cmd);
1327 if (ret)
1328 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1329 else
1330 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
1331 "succeeded, "
1332 "critical temperature is %d\n",
1333 hw_params(priv).ct_kill_threshold);
1334 }
1335 }
1336
1337 static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
1338 {
1339 struct iwl_calib_cfg_cmd calib_cfg_cmd;
1340 struct iwl_host_cmd cmd = {
1341 .id = CALIBRATION_CFG_CMD,
1342 .len = { sizeof(struct iwl_calib_cfg_cmd), },
1343 .data = { &calib_cfg_cmd, },
1344 };
1345
1346 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
1347 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
1348 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
1349
1350 return iwl_trans_send_cmd(trans(priv), &cmd);
1351 }
1352
1353
1354 static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
1355 {
1356 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
1357 .valid = cpu_to_le32(valid_tx_ant),
1358 };
1359
1360 if (IWL_UCODE_API(priv->ucode_ver) > 1) {
1361 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
1362 return iwl_trans_send_cmd_pdu(trans(priv),
1363 TX_ANT_CONFIGURATION_CMD,
1364 CMD_SYNC,
1365 sizeof(struct iwl_tx_ant_config_cmd),
1366 &tx_ant_cmd);
1367 } else {
1368 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
1369 return -EOPNOTSUPP;
1370 }
1371 }
1372
1373 /**
1374 * iwl_alive_start - called after REPLY_ALIVE notification received
1375 * from protocol/runtime uCode (initialization uCode's
1376 * Alive gets handled by iwl_init_alive_start()).
1377 */
1378 int iwl_alive_start(struct iwl_priv *priv)
1379 {
1380 int ret = 0;
1381 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
1382
1383 /*TODO: this should go to the transport layer */
1384 iwl_reset_ict(trans(priv));
1385
1386 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
1387
1388 /* After the ALIVE response, we can send host commands to the uCode */
1389 set_bit(STATUS_ALIVE, &priv->shrd->status);
1390
1391 /* Enable watchdog to monitor the driver tx queues */
1392 iwl_setup_watchdog(priv);
1393
1394 if (iwl_is_rfkill(priv->shrd))
1395 return -ERFKILL;
1396
1397 /* download priority table before any calibration request */
1398 if (priv->cfg->bt_params &&
1399 priv->cfg->bt_params->advanced_bt_coexist) {
1400 /* Configure Bluetooth device coexistence support */
1401 if (priv->cfg->bt_params->bt_sco_disable)
1402 priv->bt_enable_pspoll = false;
1403 else
1404 priv->bt_enable_pspoll = true;
1405
1406 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1407 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1408 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
1409 iwlagn_send_advance_bt_config(priv);
1410 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
1411 priv->cur_rssi_ctx = NULL;
1412
1413 iwlagn_send_prio_tbl(priv);
1414
1415 /* FIXME: w/a to force change uCode BT state machine */
1416 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
1417 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1418 if (ret)
1419 return ret;
1420 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
1421 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1422 if (ret)
1423 return ret;
1424 } else {
1425 /*
1426 * default is 2-wire BT coexexistence support
1427 */
1428 iwl_send_bt_config(priv);
1429 }
1430
1431 if (hw_params(priv).calib_rt_cfg)
1432 iwlagn_send_calib_cfg_rt(priv,
1433 hw_params(priv).calib_rt_cfg);
1434
1435 ieee80211_wake_queues(priv->hw);
1436
1437 priv->active_rate = IWL_RATES_MASK;
1438
1439 /* Configure Tx antenna selection based on H/W config */
1440 iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
1441
1442 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
1443 struct iwl_rxon_cmd *active_rxon =
1444 (struct iwl_rxon_cmd *)&ctx->active;
1445 /* apply any changes in staging */
1446 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
1447 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1448 } else {
1449 struct iwl_rxon_context *tmp;
1450 /* Initialize our rx_config data */
1451 for_each_context(priv, tmp)
1452 iwl_connection_init_rx_config(priv, tmp);
1453
1454 iwlagn_set_rxon_chain(priv, ctx);
1455 }
1456
1457 if (!priv->shrd->wowlan) {
1458 /* WoWLAN ucode will not reply in the same way, skip it */
1459 iwl_reset_run_time_calib(priv);
1460 }
1461
1462 set_bit(STATUS_READY, &priv->shrd->status);
1463
1464 /* Configure the adapter for unassociated operation */
1465 ret = iwlagn_commit_rxon(priv, ctx);
1466 if (ret)
1467 return ret;
1468
1469 /* At this point, the NIC is initialized and operational */
1470 iwl_rf_kill_ct_config(priv);
1471
1472 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
1473
1474 return iwl_power_update_mode(priv, true);
1475 }
1476
1477 static void iwl_cancel_deferred_work(struct iwl_priv *priv);
1478
1479 static void __iwl_down(struct iwl_priv *priv)
1480 {
1481 int exit_pending;
1482
1483 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
1484
1485 iwl_scan_cancel_timeout(priv, 200);
1486
1487 /*
1488 * If active, scanning won't cancel it, so say it expired.
1489 * No race since we hold the mutex here and a new one
1490 * can't come in at this time.
1491 */
1492 ieee80211_remain_on_channel_expired(priv->hw);
1493
1494 exit_pending =
1495 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1496
1497 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1498 * to prevent rearm timer */
1499 del_timer_sync(&priv->watchdog);
1500
1501 iwl_clear_ucode_stations(priv, NULL);
1502 iwl_dealloc_bcast_stations(priv);
1503 iwl_clear_driver_stations(priv);
1504
1505 /* reset BT coex data */
1506 priv->bt_status = 0;
1507 priv->cur_rssi_ctx = NULL;
1508 priv->bt_is_sco = 0;
1509 if (priv->cfg->bt_params)
1510 priv->bt_traffic_load =
1511 priv->cfg->bt_params->bt_init_traffic_load;
1512 else
1513 priv->bt_traffic_load = 0;
1514 priv->bt_full_concurrent = false;
1515 priv->bt_ci_compliance = 0;
1516
1517 /* Wipe out the EXIT_PENDING status bit if we are not actually
1518 * exiting the module */
1519 if (!exit_pending)
1520 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1521
1522 if (priv->shrd->mac80211_registered)
1523 ieee80211_stop_queues(priv->hw);
1524
1525 /* Clear out all status bits but a few that are stable across reset */
1526 priv->shrd->status &=
1527 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
1528 STATUS_RF_KILL_HW |
1529 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
1530 STATUS_GEO_CONFIGURED |
1531 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
1532 STATUS_FW_ERROR |
1533 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
1534 STATUS_EXIT_PENDING;
1535
1536 iwl_trans_stop_device(trans(priv));
1537
1538 dev_kfree_skb(priv->beacon_skb);
1539 priv->beacon_skb = NULL;
1540 }
1541
1542 static void iwl_down(struct iwl_priv *priv)
1543 {
1544 mutex_lock(&priv->shrd->mutex);
1545 __iwl_down(priv);
1546 mutex_unlock(&priv->shrd->mutex);
1547
1548 iwl_cancel_deferred_work(priv);
1549 }
1550
1551 #define MAX_HW_RESTARTS 5
1552
1553 static int __iwl_up(struct iwl_priv *priv)
1554 {
1555 struct iwl_rxon_context *ctx;
1556 int ret;
1557
1558 lockdep_assert_held(&priv->shrd->mutex);
1559
1560 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
1561 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
1562 return -EIO;
1563 }
1564
1565 for_each_context(priv, ctx) {
1566 ret = iwlagn_alloc_bcast_station(priv, ctx);
1567 if (ret) {
1568 iwl_dealloc_bcast_stations(priv);
1569 return ret;
1570 }
1571 }
1572
1573 ret = iwlagn_run_init_ucode(priv);
1574 if (ret) {
1575 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
1576 goto error;
1577 }
1578
1579 ret = iwlagn_load_ucode_wait_alive(priv,
1580 &priv->ucode_rt,
1581 IWL_UCODE_REGULAR);
1582 if (ret) {
1583 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
1584 goto error;
1585 }
1586
1587 ret = iwl_alive_start(priv);
1588 if (ret)
1589 goto error;
1590 return 0;
1591
1592 error:
1593 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1594 __iwl_down(priv);
1595 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
1596
1597 IWL_ERR(priv, "Unable to initialize device.\n");
1598 return ret;
1599 }
1600
1601
1602 /*****************************************************************************
1603 *
1604 * Workqueue callbacks
1605 *
1606 *****************************************************************************/
1607
1608 static void iwl_bg_run_time_calib_work(struct work_struct *work)
1609 {
1610 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1611 run_time_calib_work);
1612
1613 mutex_lock(&priv->shrd->mutex);
1614
1615 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
1616 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
1617 mutex_unlock(&priv->shrd->mutex);
1618 return;
1619 }
1620
1621 if (priv->start_calib) {
1622 iwl_chain_noise_calibration(priv);
1623 iwl_sensitivity_calibration(priv);
1624 }
1625
1626 mutex_unlock(&priv->shrd->mutex);
1627 }
1628
1629 static void iwlagn_prepare_restart(struct iwl_priv *priv)
1630 {
1631 struct iwl_rxon_context *ctx;
1632 bool bt_full_concurrent;
1633 u8 bt_ci_compliance;
1634 u8 bt_load;
1635 u8 bt_status;
1636 bool bt_is_sco;
1637
1638 lockdep_assert_held(&priv->shrd->mutex);
1639
1640 for_each_context(priv, ctx)
1641 ctx->vif = NULL;
1642 priv->is_open = 0;
1643
1644 /*
1645 * __iwl_down() will clear the BT status variables,
1646 * which is correct, but when we restart we really
1647 * want to keep them so restore them afterwards.
1648 *
1649 * The restart process will later pick them up and
1650 * re-configure the hw when we reconfigure the BT
1651 * command.
1652 */
1653 bt_full_concurrent = priv->bt_full_concurrent;
1654 bt_ci_compliance = priv->bt_ci_compliance;
1655 bt_load = priv->bt_traffic_load;
1656 bt_status = priv->bt_status;
1657 bt_is_sco = priv->bt_is_sco;
1658
1659 __iwl_down(priv);
1660
1661 priv->bt_full_concurrent = bt_full_concurrent;
1662 priv->bt_ci_compliance = bt_ci_compliance;
1663 priv->bt_traffic_load = bt_load;
1664 priv->bt_status = bt_status;
1665 priv->bt_is_sco = bt_is_sco;
1666 }
1667
1668 static void iwl_bg_restart(struct work_struct *data)
1669 {
1670 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
1671
1672 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
1673 return;
1674
1675 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
1676 mutex_lock(&priv->shrd->mutex);
1677 iwlagn_prepare_restart(priv);
1678 mutex_unlock(&priv->shrd->mutex);
1679 iwl_cancel_deferred_work(priv);
1680 ieee80211_restart_hw(priv->hw);
1681 } else {
1682 WARN_ON(1);
1683 }
1684 }
1685
1686 /*****************************************************************************
1687 *
1688 * mac80211 entry point functions
1689 *
1690 *****************************************************************************/
1691
1692 static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
1693 {
1694 .max = 1,
1695 .types = BIT(NL80211_IFTYPE_STATION),
1696 },
1697 {
1698 .max = 1,
1699 .types = BIT(NL80211_IFTYPE_AP),
1700 },
1701 };
1702
1703 static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
1704 {
1705 .max = 2,
1706 .types = BIT(NL80211_IFTYPE_STATION),
1707 },
1708 };
1709
1710 static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
1711 {
1712 .max = 1,
1713 .types = BIT(NL80211_IFTYPE_STATION),
1714 },
1715 {
1716 .max = 1,
1717 .types = BIT(NL80211_IFTYPE_P2P_GO) |
1718 BIT(NL80211_IFTYPE_AP),
1719 },
1720 };
1721
1722 static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
1723 {
1724 .max = 2,
1725 .types = BIT(NL80211_IFTYPE_STATION),
1726 },
1727 {
1728 .max = 1,
1729 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
1730 },
1731 };
1732
1733 static const struct ieee80211_iface_combination
1734 iwlagn_iface_combinations_dualmode[] = {
1735 { .num_different_channels = 1,
1736 .max_interfaces = 2,
1737 .beacon_int_infra_match = true,
1738 .limits = iwlagn_sta_ap_limits,
1739 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
1740 },
1741 { .num_different_channels = 1,
1742 .max_interfaces = 2,
1743 .limits = iwlagn_2sta_limits,
1744 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
1745 },
1746 };
1747
1748 static const struct ieee80211_iface_combination
1749 iwlagn_iface_combinations_p2p[] = {
1750 { .num_different_channels = 1,
1751 .max_interfaces = 2,
1752 .beacon_int_infra_match = true,
1753 .limits = iwlagn_p2p_sta_go_limits,
1754 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
1755 },
1756 { .num_different_channels = 1,
1757 .max_interfaces = 2,
1758 .limits = iwlagn_p2p_2sta_limits,
1759 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
1760 },
1761 };
1762
1763 /*
1764 * Not a mac80211 entry point function, but it fits in with all the
1765 * other mac80211 functions grouped here.
1766 */
1767 static int iwl_mac_setup_register(struct iwl_priv *priv,
1768 struct iwlagn_ucode_capabilities *capa)
1769 {
1770 int ret;
1771 struct ieee80211_hw *hw = priv->hw;
1772 struct iwl_rxon_context *ctx;
1773
1774 hw->rate_control_algorithm = "iwl-agn-rs";
1775
1776 /* Tell mac80211 our characteristics */
1777 hw->flags = IEEE80211_HW_SIGNAL_DBM |
1778 IEEE80211_HW_AMPDU_AGGREGATION |
1779 IEEE80211_HW_NEED_DTIM_PERIOD |
1780 IEEE80211_HW_SPECTRUM_MGMT |
1781 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
1782
1783 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
1784
1785 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
1786 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
1787
1788 if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
1789 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1790 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
1791
1792 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
1793 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
1794
1795 hw->sta_data_size = sizeof(struct iwl_station_priv);
1796 hw->vif_data_size = sizeof(struct iwl_vif_priv);
1797
1798 for_each_context(priv, ctx) {
1799 hw->wiphy->interface_modes |= ctx->interface_modes;
1800 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
1801 }
1802
1803 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1804
1805 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
1806 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
1807 hw->wiphy->n_iface_combinations =
1808 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
1809 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
1810 hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode;
1811 hw->wiphy->n_iface_combinations =
1812 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
1813 }
1814
1815 hw->wiphy->max_remain_on_channel_duration = 1000;
1816
1817 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
1818 WIPHY_FLAG_DISABLE_BEACON_HINTS |
1819 WIPHY_FLAG_IBSS_RSN;
1820
1821 if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) {
1822 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
1823 WIPHY_WOWLAN_DISCONNECT |
1824 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
1825 WIPHY_WOWLAN_RFKILL_RELEASE;
1826 if (!iwlagn_mod_params.sw_crypto)
1827 hw->wiphy->wowlan.flags |=
1828 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
1829 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
1830
1831 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
1832 hw->wiphy->wowlan.pattern_min_len =
1833 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
1834 hw->wiphy->wowlan.pattern_max_len =
1835 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
1836 }
1837
1838 if (iwlagn_mod_params.power_save)
1839 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
1840 else
1841 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
1842
1843 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
1844 /* we create the 802.11 header and a zero-length SSID element */
1845 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
1846
1847 /* Default value; 4 EDCA QOS priorities */
1848 hw->queues = 4;
1849
1850 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1851
1852 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1853 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1854 &priv->bands[IEEE80211_BAND_2GHZ];
1855 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1856 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1857 &priv->bands[IEEE80211_BAND_5GHZ];
1858
1859 iwl_leds_init(priv);
1860
1861 ret = ieee80211_register_hw(priv->hw);
1862 if (ret) {
1863 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1864 return ret;
1865 }
1866 priv->shrd->mac80211_registered = 1;
1867
1868 return 0;
1869 }
1870
1871
1872 static int iwlagn_mac_start(struct ieee80211_hw *hw)
1873 {
1874 struct iwl_priv *priv = hw->priv;
1875 int ret;
1876
1877 IWL_DEBUG_MAC80211(priv, "enter\n");
1878
1879 /* we should be verifying the device is ready to be opened */
1880 mutex_lock(&priv->shrd->mutex);
1881 ret = __iwl_up(priv);
1882 mutex_unlock(&priv->shrd->mutex);
1883 if (ret)
1884 return ret;
1885
1886 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
1887
1888 /* Now we should be done, and the READY bit should be set. */
1889 if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
1890 ret = -EIO;
1891
1892 iwlagn_led_enable(priv);
1893
1894 priv->is_open = 1;
1895 IWL_DEBUG_MAC80211(priv, "leave\n");
1896 return 0;
1897 }
1898
1899 static void iwlagn_mac_stop(struct ieee80211_hw *hw)
1900 {
1901 struct iwl_priv *priv = hw->priv;
1902
1903 IWL_DEBUG_MAC80211(priv, "enter\n");
1904
1905 if (!priv->is_open)
1906 return;
1907
1908 priv->is_open = 0;
1909
1910 iwl_down(priv);
1911
1912 flush_workqueue(priv->shrd->workqueue);
1913
1914 /* User space software may expect getting rfkill changes
1915 * even if interface is down */
1916 iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
1917 iwl_enable_rfkill_int(priv);
1918
1919 IWL_DEBUG_MAC80211(priv, "leave\n");
1920 }
1921
1922 #ifdef CONFIG_PM
1923 static int iwlagn_send_patterns(struct iwl_priv *priv,
1924 struct cfg80211_wowlan *wowlan)
1925 {
1926 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1927 struct iwl_host_cmd cmd = {
1928 .id = REPLY_WOWLAN_PATTERNS,
1929 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1930 .flags = CMD_SYNC,
1931 };
1932 int i, err;
1933
1934 if (!wowlan->n_patterns)
1935 return 0;
1936
1937 cmd.len[0] = sizeof(*pattern_cmd) +
1938 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1939
1940 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1941 if (!pattern_cmd)
1942 return -ENOMEM;
1943
1944 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1945
1946 for (i = 0; i < wowlan->n_patterns; i++) {
1947 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1948
1949 memcpy(&pattern_cmd->patterns[i].mask,
1950 wowlan->patterns[i].mask, mask_len);
1951 memcpy(&pattern_cmd->patterns[i].pattern,
1952 wowlan->patterns[i].pattern,
1953 wowlan->patterns[i].pattern_len);
1954 pattern_cmd->patterns[i].mask_size = mask_len;
1955 pattern_cmd->patterns[i].pattern_size =
1956 wowlan->patterns[i].pattern_len;
1957 }
1958
1959 cmd.data[0] = pattern_cmd;
1960 err = iwl_trans_send_cmd(trans(priv), &cmd);
1961 kfree(pattern_cmd);
1962 return err;
1963 }
1964 #endif
1965
1966 static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
1967 struct ieee80211_vif *vif,
1968 struct cfg80211_gtk_rekey_data *data)
1969 {
1970 struct iwl_priv *priv = hw->priv;
1971
1972 if (iwlagn_mod_params.sw_crypto)
1973 return;
1974
1975 mutex_lock(&priv->shrd->mutex);
1976
1977 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
1978 goto out;
1979
1980 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
1981 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
1982 priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
1983 priv->have_rekey_data = true;
1984
1985 out:
1986 mutex_unlock(&priv->shrd->mutex);
1987 }
1988
1989 struct wowlan_key_data {
1990 struct iwl_rxon_context *ctx;
1991 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
1992 struct iwlagn_wowlan_tkip_params_cmd *tkip;
1993 const u8 *bssid;
1994 bool error, use_rsc_tsc, use_tkip;
1995 };
1996
1997 #ifdef CONFIG_PM
1998 static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
1999 {
2000 int i;
2001
2002 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
2003 out[i] = cpu_to_le16(p1k[i]);
2004 }
2005
2006 static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
2007 struct ieee80211_vif *vif,
2008 struct ieee80211_sta *sta,
2009 struct ieee80211_key_conf *key,
2010 void *_data)
2011 {
2012 struct iwl_priv *priv = hw->priv;
2013 struct wowlan_key_data *data = _data;
2014 struct iwl_rxon_context *ctx = data->ctx;
2015 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
2016 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
2017 struct iwlagn_p1k_cache *rx_p1ks;
2018 u8 *rx_mic_key;
2019 struct ieee80211_key_seq seq;
2020 u32 cur_rx_iv32 = 0;
2021 u16 p1k[IWLAGN_P1K_SIZE];
2022 int ret, i;
2023
2024 mutex_lock(&priv->shrd->mutex);
2025
2026 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
2027 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
2028 !sta && !ctx->key_mapping_keys)
2029 ret = iwl_set_default_wep_key(priv, ctx, key);
2030 else
2031 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
2032
2033 if (ret) {
2034 IWL_ERR(priv, "Error setting key during suspend!\n");
2035 data->error = true;
2036 }
2037
2038 switch (key->cipher) {
2039 case WLAN_CIPHER_SUITE_TKIP:
2040 if (sta) {
2041 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
2042 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
2043
2044 rx_p1ks = data->tkip->rx_uni;
2045
2046 ieee80211_get_key_tx_seq(key, &seq);
2047 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
2048 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
2049
2050 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
2051 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
2052
2053 memcpy(data->tkip->mic_keys.tx,
2054 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
2055 IWLAGN_MIC_KEY_SIZE);
2056
2057 rx_mic_key = data->tkip->mic_keys.rx_unicast;
2058 } else {
2059 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
2060 rx_p1ks = data->tkip->rx_multi;
2061 rx_mic_key = data->tkip->mic_keys.rx_mcast;
2062 }
2063
2064 /*
2065 * For non-QoS this relies on the fact that both the uCode and
2066 * mac80211 use TID 0 (as they need to to avoid replay attacks)
2067 * for checking the IV in the frames.
2068 */
2069 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
2070 ieee80211_get_key_rx_seq(key, i, &seq);
2071 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
2072 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
2073 /* wrapping isn't allowed, AP must rekey */
2074 if (seq.tkip.iv32 > cur_rx_iv32)
2075 cur_rx_iv32 = seq.tkip.iv32;
2076 }
2077
2078 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
2079 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
2080 ieee80211_get_tkip_rx_p1k(key, data->bssid,
2081 cur_rx_iv32 + 1, p1k);
2082 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
2083
2084 memcpy(rx_mic_key,
2085 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
2086 IWLAGN_MIC_KEY_SIZE);
2087
2088 data->use_tkip = true;
2089 data->use_rsc_tsc = true;
2090 break;
2091 case WLAN_CIPHER_SUITE_CCMP:
2092 if (sta) {
2093 u8 *pn = seq.ccmp.pn;
2094
2095 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
2096 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
2097
2098 ieee80211_get_key_tx_seq(key, &seq);
2099 aes_tx_sc->pn = cpu_to_le64(
2100 (u64)pn[5] |
2101 ((u64)pn[4] << 8) |
2102 ((u64)pn[3] << 16) |
2103 ((u64)pn[2] << 24) |
2104 ((u64)pn[1] << 32) |
2105 ((u64)pn[0] << 40));
2106 } else
2107 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
2108
2109 /*
2110 * For non-QoS this relies on the fact that both the uCode and
2111 * mac80211 use TID 0 for checking the IV in the frames.
2112 */
2113 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
2114 u8 *pn = seq.ccmp.pn;
2115
2116 ieee80211_get_key_rx_seq(key, i, &seq);
2117 aes_sc->pn = cpu_to_le64(
2118 (u64)pn[5] |
2119 ((u64)pn[4] << 8) |
2120 ((u64)pn[3] << 16) |
2121 ((u64)pn[2] << 24) |
2122 ((u64)pn[1] << 32) |
2123 ((u64)pn[0] << 40));
2124 }
2125 data->use_rsc_tsc = true;
2126 break;
2127 }
2128
2129 mutex_unlock(&priv->shrd->mutex);
2130 }
2131
2132 static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
2133 struct cfg80211_wowlan *wowlan)
2134 {
2135 struct iwl_priv *priv = hw->priv;
2136 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
2137 struct iwl_rxon_cmd rxon;
2138 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2139 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
2140 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
2141 struct wowlan_key_data key_data = {
2142 .ctx = ctx,
2143 .bssid = ctx->active.bssid_addr,
2144 .use_rsc_tsc = false,
2145 .tkip = &tkip_cmd,
2146 .use_tkip = false,
2147 };
2148 int ret, i;
2149 u16 seq;
2150
2151 if (WARN_ON(!wowlan))
2152 return -EINVAL;
2153
2154 mutex_lock(&priv->shrd->mutex);
2155
2156 /* Don't attempt WoWLAN when not associated, tear down instead. */
2157 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
2158 !iwl_is_associated_ctx(ctx)) {
2159 ret = 1;
2160 goto out;
2161 }
2162
2163 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
2164 if (!key_data.rsc_tsc) {
2165 ret = -ENOMEM;
2166 goto out;
2167 }
2168
2169 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
2170
2171 /*
2172 * We know the last used seqno, and the uCode expects to know that
2173 * one, it will increment before TX.
2174 */
2175 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
2176 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
2177
2178 /*
2179 * For QoS counters, we store the one to use next, so subtract 0x10
2180 * since the uCode will add 0x10 before using the value.
2181 */
2182 for (i = 0; i < 8; i++) {
2183 seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
2184 seq -= 0x10;
2185 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
2186 }
2187
2188 if (wowlan->disconnect)
2189 wakeup_filter_cmd.enabled |=
2190 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
2191 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
2192 if (wowlan->magic_pkt)
2193 wakeup_filter_cmd.enabled |=
2194 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
2195 if (wowlan->gtk_rekey_failure)
2196 wakeup_filter_cmd.enabled |=
2197 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
2198 if (wowlan->eap_identity_req)
2199 wakeup_filter_cmd.enabled |=
2200 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
2201 if (wowlan->four_way_handshake)
2202 wakeup_filter_cmd.enabled |=
2203 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
2204 if (wowlan->rfkill_release)
2205 wakeup_filter_cmd.enabled |=
2206 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL);
2207 if (wowlan->n_patterns)
2208 wakeup_filter_cmd.enabled |=
2209 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
2210
2211 iwl_scan_cancel_timeout(priv, 200);
2212
2213 memcpy(&rxon, &ctx->active, sizeof(rxon));
2214
2215 iwl_trans_stop_device(trans(priv));
2216
2217 priv->shrd->wowlan = true;
2218
2219 ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan,
2220 IWL_UCODE_WOWLAN);
2221 if (ret)
2222 goto error;
2223
2224 /* now configure WoWLAN ucode */
2225 ret = iwl_alive_start(priv);
2226 if (ret)
2227 goto error;
2228
2229 memcpy(&ctx->staging, &rxon, sizeof(rxon));
2230 ret = iwlagn_commit_rxon(priv, ctx);
2231 if (ret)
2232 goto error;
2233
2234 ret = iwl_power_update_mode(priv, true);
2235 if (ret)
2236 goto error;
2237
2238 if (!iwlagn_mod_params.sw_crypto) {
2239 /* mark all keys clear */
2240 priv->ucode_key_table = 0;
2241 ctx->key_mapping_keys = 0;
2242
2243 /*
2244 * This needs to be unlocked due to lock ordering
2245 * constraints. Since we're in the suspend path
2246 * that isn't really a problem though.
2247 */
2248 mutex_unlock(&priv->shrd->mutex);
2249 ieee80211_iter_keys(priv->hw, ctx->vif,
2250 iwlagn_wowlan_program_keys,
2251 &key_data);
2252 mutex_lock(&priv->shrd->mutex);
2253 if (key_data.error) {
2254 ret = -EIO;
2255 goto error;
2256 }
2257
2258 if (key_data.use_rsc_tsc) {
2259 struct iwl_host_cmd rsc_tsc_cmd = {
2260 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
2261 .flags = CMD_SYNC,
2262 .data[0] = key_data.rsc_tsc,
2263 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2264 .len[0] = sizeof(*key_data.rsc_tsc),
2265 };
2266
2267 ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd);
2268 if (ret)
2269 goto error;
2270 }
2271
2272 if (key_data.use_tkip) {
2273 ret = iwl_trans_send_cmd_pdu(trans(priv),
2274 REPLY_WOWLAN_TKIP_PARAMS,
2275 CMD_SYNC, sizeof(tkip_cmd),
2276 &tkip_cmd);
2277 if (ret)
2278 goto error;
2279 }
2280
2281 if (priv->have_rekey_data) {
2282 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
2283 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
2284 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
2285 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
2286 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
2287 kek_kck_cmd.replay_ctr = priv->replay_ctr;
2288
2289 ret = iwl_trans_send_cmd_pdu(trans(priv),
2290 REPLY_WOWLAN_KEK_KCK_MATERIAL,
2291 CMD_SYNC, sizeof(kek_kck_cmd),
2292 &kek_kck_cmd);
2293 if (ret)
2294 goto error;
2295 }
2296 }
2297
2298 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER,
2299 CMD_SYNC, sizeof(wakeup_filter_cmd),
2300 &wakeup_filter_cmd);
2301 if (ret)
2302 goto error;
2303
2304 ret = iwlagn_send_patterns(priv, wowlan);
2305 if (ret)
2306 goto error;
2307
2308 device_set_wakeup_enable(priv->bus->dev, true);
2309
2310 /* Now let the ucode operate on its own */
2311 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
2312 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2313
2314 goto out;
2315
2316 error:
2317 priv->shrd->wowlan = false;
2318 iwlagn_prepare_restart(priv);
2319 ieee80211_restart_hw(priv->hw);
2320 out:
2321 mutex_unlock(&priv->shrd->mutex);
2322 kfree(key_data.rsc_tsc);
2323 return ret;
2324 }
2325
2326 static int iwlagn_mac_resume(struct ieee80211_hw *hw)
2327 {
2328 struct iwl_priv *priv = hw->priv;
2329 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2330 struct ieee80211_vif *vif;
2331 unsigned long flags;
2332 u32 base, status = 0xffffffff;
2333 int ret = -EIO;
2334
2335 mutex_lock(&priv->shrd->mutex);
2336
2337 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
2338 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2339
2340 base = priv->device_pointers.error_event_table;
2341 if (iwlagn_hw_valid_rtc_data_addr(base)) {
2342 spin_lock_irqsave(&bus(priv)->reg_lock, flags);
2343 ret = iwl_grab_nic_access_silent(bus(priv));
2344 if (ret == 0) {
2345 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
2346 status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
2347 iwl_release_nic_access(bus(priv));
2348 }
2349 spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
2350
2351 #ifdef CONFIG_IWLWIFI_DEBUGFS
2352 if (ret == 0) {
2353 if (!priv->wowlan_sram)
2354 priv->wowlan_sram =
2355 kzalloc(priv->ucode_wowlan.data.len,
2356 GFP_KERNEL);
2357
2358 if (priv->wowlan_sram)
2359 _iwl_read_targ_mem_words(
2360 bus(priv), 0x800000, priv->wowlan_sram,
2361 priv->ucode_wowlan.data.len / 4);
2362 }
2363 #endif
2364 }
2365
2366 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2367 vif = ctx->vif;
2368
2369 priv->shrd->wowlan = false;
2370
2371 device_set_wakeup_enable(priv->bus->dev, false);
2372
2373 iwlagn_prepare_restart(priv);
2374
2375 memset((void *)&ctx->active, 0, sizeof(ctx->active));
2376 iwl_connection_init_rx_config(priv, ctx);
2377 iwlagn_set_rxon_chain(priv, ctx);
2378
2379 mutex_unlock(&priv->shrd->mutex);
2380
2381 ieee80211_resume_disconnect(vif);
2382
2383 return 1;
2384 }
2385 #endif
2386
2387 static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
2388 {
2389 struct iwl_priv *priv = hw->priv;
2390
2391 IWL_DEBUG_MACDUMP(priv, "enter\n");
2392
2393 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
2394 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
2395
2396 if (iwlagn_tx_skb(priv, skb))
2397 dev_kfree_skb_any(skb);
2398
2399 IWL_DEBUG_MACDUMP(priv, "leave\n");
2400 }
2401
2402 static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
2403 struct ieee80211_vif *vif,
2404 struct ieee80211_key_conf *keyconf,
2405 struct ieee80211_sta *sta,
2406 u32 iv32, u16 *phase1key)
2407 {
2408 struct iwl_priv *priv = hw->priv;
2409
2410 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
2411 }
2412
2413 static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2414 struct ieee80211_vif *vif,
2415 struct ieee80211_sta *sta,
2416 struct ieee80211_key_conf *key)
2417 {
2418 struct iwl_priv *priv = hw->priv;
2419 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2420 struct iwl_rxon_context *ctx = vif_priv->ctx;
2421 int ret;
2422 bool is_default_wep_key = false;
2423
2424 IWL_DEBUG_MAC80211(priv, "enter\n");
2425
2426 if (iwlagn_mod_params.sw_crypto) {
2427 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
2428 return -EOPNOTSUPP;
2429 }
2430
2431 /*
2432 * We could program these keys into the hardware as well, but we
2433 * don't expect much multicast traffic in IBSS and having keys
2434 * for more stations is probably more useful.
2435 *
2436 * Mark key TX-only and return 0.
2437 */
2438 if (vif->type == NL80211_IFTYPE_ADHOC &&
2439 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
2440 key->hw_key_idx = WEP_INVALID_OFFSET;
2441 return 0;
2442 }
2443
2444 /* If they key was TX-only, accept deletion */
2445 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
2446 return 0;
2447
2448 mutex_lock(&priv->shrd->mutex);
2449 iwl_scan_cancel_timeout(priv, 100);
2450
2451 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
2452
2453 /*
2454 * If we are getting WEP group key and we didn't receive any key mapping
2455 * so far, we are in legacy wep mode (group key only), otherwise we are
2456 * in 1X mode.
2457 * In legacy wep mode, we use another host command to the uCode.
2458 */
2459 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
2460 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
2461 if (cmd == SET_KEY)
2462 is_default_wep_key = !ctx->key_mapping_keys;
2463 else
2464 is_default_wep_key =
2465 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
2466 }
2467
2468
2469 switch (cmd) {
2470 case SET_KEY:
2471 if (is_default_wep_key) {
2472 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
2473 break;
2474 }
2475 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
2476 if (ret) {
2477 /*
2478 * can't add key for RX, but we don't need it
2479 * in the device for TX so still return 0
2480 */
2481 ret = 0;
2482 key->hw_key_idx = WEP_INVALID_OFFSET;
2483 }
2484
2485 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
2486 break;
2487 case DISABLE_KEY:
2488 if (is_default_wep_key)
2489 ret = iwl_remove_default_wep_key(priv, ctx, key);
2490 else
2491 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
2492
2493 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
2494 break;
2495 default:
2496 ret = -EINVAL;
2497 }
2498
2499 mutex_unlock(&priv->shrd->mutex);
2500 IWL_DEBUG_MAC80211(priv, "leave\n");
2501
2502 return ret;
2503 }
2504
2505 static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
2506 struct ieee80211_vif *vif,
2507 enum ieee80211_ampdu_mlme_action action,
2508 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
2509 u8 buf_size)
2510 {
2511 struct iwl_priv *priv = hw->priv;
2512 int ret = -EINVAL;
2513 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
2514 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
2515
2516 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
2517 sta->addr, tid);
2518
2519 if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
2520 return -EACCES;
2521
2522 mutex_lock(&priv->shrd->mutex);
2523
2524 switch (action) {
2525 case IEEE80211_AMPDU_RX_START:
2526 IWL_DEBUG_HT(priv, "start Rx\n");
2527 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
2528 break;
2529 case IEEE80211_AMPDU_RX_STOP:
2530 IWL_DEBUG_HT(priv, "stop Rx\n");
2531 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
2532 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2533 ret = 0;
2534 break;
2535 case IEEE80211_AMPDU_TX_START:
2536 IWL_DEBUG_HT(priv, "start Tx\n");
2537 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
2538 if (ret == 0) {
2539 priv->agg_tids_count++;
2540 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2541 priv->agg_tids_count);
2542 }
2543 break;
2544 case IEEE80211_AMPDU_TX_STOP:
2545 IWL_DEBUG_HT(priv, "stop Tx\n");
2546 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
2547 if ((ret == 0) && (priv->agg_tids_count > 0)) {
2548 priv->agg_tids_count--;
2549 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2550 priv->agg_tids_count);
2551 }
2552 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
2553 ret = 0;
2554 if (priv->cfg->ht_params &&
2555 priv->cfg->ht_params->use_rts_for_aggregation) {
2556 /*
2557 * switch off RTS/CTS if it was previously enabled
2558 */
2559 sta_priv->lq_sta.lq.general_params.flags &=
2560 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2561 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2562 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2563 }
2564 break;
2565 case IEEE80211_AMPDU_TX_OPERATIONAL:
2566 buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
2567
2568 iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
2569 tid, buf_size);
2570
2571 /*
2572 * If the limit is 0, then it wasn't initialised yet,
2573 * use the default. We can do that since we take the
2574 * minimum below, and we don't want to go above our
2575 * default due to hardware restrictions.
2576 */
2577 if (sta_priv->max_agg_bufsize == 0)
2578 sta_priv->max_agg_bufsize =
2579 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2580
2581 /*
2582 * Even though in theory the peer could have different
2583 * aggregation reorder buffer sizes for different sessions,
2584 * our ucode doesn't allow for that and has a global limit
2585 * for each station. Therefore, use the minimum of all the
2586 * aggregation sessions and our default value.
2587 */
2588 sta_priv->max_agg_bufsize =
2589 min(sta_priv->max_agg_bufsize, buf_size);
2590
2591 if (priv->cfg->ht_params &&
2592 priv->cfg->ht_params->use_rts_for_aggregation) {
2593 /*
2594 * switch to RTS/CTS if it is the prefer protection
2595 * method for HT traffic
2596 */
2597
2598 sta_priv->lq_sta.lq.general_params.flags |=
2599 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
2600 }
2601
2602 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
2603 sta_priv->max_agg_bufsize;
2604
2605 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2606 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
2607
2608 IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
2609 sta->addr, tid);
2610 ret = 0;
2611 break;
2612 }
2613 mutex_unlock(&priv->shrd->mutex);
2614
2615 return ret;
2616 }
2617
2618 static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
2619 struct ieee80211_vif *vif,
2620 struct ieee80211_sta *sta)
2621 {
2622 struct iwl_priv *priv = hw->priv;
2623 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
2624 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2625 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
2626 int ret;
2627 u8 sta_id;
2628
2629 IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
2630 sta->addr);
2631 mutex_lock(&priv->shrd->mutex);
2632 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
2633 sta->addr);
2634 sta_priv->common.sta_id = IWL_INVALID_STATION;
2635
2636 atomic_set(&sta_priv->pending_frames, 0);
2637 if (vif->type == NL80211_IFTYPE_AP)
2638 sta_priv->client = true;
2639
2640 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
2641 is_ap, sta, &sta_id);
2642 if (ret) {
2643 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
2644 sta->addr, ret);
2645 /* Should we return success if return code is EEXIST ? */
2646 mutex_unlock(&priv->shrd->mutex);
2647 return ret;
2648 }
2649
2650 sta_priv->common.sta_id = sta_id;
2651
2652 /* Initialize rate scaling */
2653 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
2654 sta->addr);
2655 iwl_rs_rate_init(priv, sta, sta_id);
2656 mutex_unlock(&priv->shrd->mutex);
2657
2658 return 0;
2659 }
2660
2661 static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
2662 struct ieee80211_channel_switch *ch_switch)
2663 {
2664 struct iwl_priv *priv = hw->priv;
2665 const struct iwl_channel_info *ch_info;
2666 struct ieee80211_conf *conf = &hw->conf;
2667 struct ieee80211_channel *channel = ch_switch->channel;
2668 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
2669 /*
2670 * MULTI-FIXME
2671 * When we add support for multiple interfaces, we need to
2672 * revisit this. The channel switch command in the device
2673 * only affects the BSS context, but what does that really
2674 * mean? And what if we get a CSA on the second interface?
2675 * This needs a lot of work.
2676 */
2677 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2678 u16 ch;
2679
2680 IWL_DEBUG_MAC80211(priv, "enter\n");
2681
2682 mutex_lock(&priv->shrd->mutex);
2683
2684 if (iwl_is_rfkill(priv->shrd))
2685 goto out;
2686
2687 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
2688 test_bit(STATUS_SCANNING, &priv->shrd->status) ||
2689 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
2690 goto out;
2691
2692 if (!iwl_is_associated_ctx(ctx))
2693 goto out;
2694
2695 if (!priv->cfg->lib->set_channel_switch)
2696 goto out;
2697
2698 ch = channel->hw_value;
2699 if (le16_to_cpu(ctx->active.channel) == ch)
2700 goto out;
2701
2702 ch_info = iwl_get_channel_info(priv, channel->band, ch);
2703 if (!is_channel_valid(ch_info)) {
2704 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
2705 goto out;
2706 }
2707
2708 spin_lock_irq(&priv->shrd->lock);
2709
2710 priv->current_ht_config.smps = conf->smps_mode;
2711
2712 /* Configure HT40 channels */
2713 ctx->ht.enabled = conf_is_ht(conf);
2714 if (ctx->ht.enabled) {
2715 if (conf_is_ht40_minus(conf)) {
2716 ctx->ht.extension_chan_offset =
2717 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2718 ctx->ht.is_40mhz = true;
2719 } else if (conf_is_ht40_plus(conf)) {
2720 ctx->ht.extension_chan_offset =
2721 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2722 ctx->ht.is_40mhz = true;
2723 } else {
2724 ctx->ht.extension_chan_offset =
2725 IEEE80211_HT_PARAM_CHA_SEC_NONE;
2726 ctx->ht.is_40mhz = false;
2727 }
2728 } else
2729 ctx->ht.is_40mhz = false;
2730
2731 if ((le16_to_cpu(ctx->staging.channel) != ch))
2732 ctx->staging.flags = 0;
2733
2734 iwl_set_rxon_channel(priv, channel, ctx);
2735 iwl_set_rxon_ht(priv, ht_conf);
2736 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
2737
2738 spin_unlock_irq(&priv->shrd->lock);
2739
2740 iwl_set_rate(priv);
2741 /*
2742 * at this point, staging_rxon has the
2743 * configuration for channel switch
2744 */
2745 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2746 priv->switch_channel = cpu_to_le16(ch);
2747 if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
2748 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
2749 priv->switch_channel = 0;
2750 ieee80211_chswitch_done(ctx->vif, false);
2751 }
2752
2753 out:
2754 mutex_unlock(&priv->shrd->mutex);
2755 IWL_DEBUG_MAC80211(priv, "leave\n");
2756 }
2757
2758 static void iwlagn_configure_filter(struct ieee80211_hw *hw,
2759 unsigned int changed_flags,
2760 unsigned int *total_flags,
2761 u64 multicast)
2762 {
2763 struct iwl_priv *priv = hw->priv;
2764 __le32 filter_or = 0, filter_nand = 0;
2765 struct iwl_rxon_context *ctx;
2766
2767 #define CHK(test, flag) do { \
2768 if (*total_flags & (test)) \
2769 filter_or |= (flag); \
2770 else \
2771 filter_nand |= (flag); \
2772 } while (0)
2773
2774 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
2775 changed_flags, *total_flags);
2776
2777 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
2778 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2779 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
2780 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
2781
2782 #undef CHK
2783
2784 mutex_lock(&priv->shrd->mutex);
2785
2786 for_each_context(priv, ctx) {
2787 ctx->staging.filter_flags &= ~filter_nand;
2788 ctx->staging.filter_flags |= filter_or;
2789
2790 /*
2791 * Not committing directly because hardware can perform a scan,
2792 * but we'll eventually commit the filter flags change anyway.
2793 */
2794 }
2795
2796 mutex_unlock(&priv->shrd->mutex);
2797
2798 /*
2799 * Receiving all multicast frames is always enabled by the
2800 * default flags setup in iwl_connection_init_rx_config()
2801 * since we currently do not support programming multicast
2802 * filters into the device.
2803 */
2804 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
2805 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
2806 }
2807
2808 static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
2809 {
2810 struct iwl_priv *priv = hw->priv;
2811
2812 mutex_lock(&priv->shrd->mutex);
2813 IWL_DEBUG_MAC80211(priv, "enter\n");
2814
2815 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
2816 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
2817 goto done;
2818 }
2819 if (iwl_is_rfkill(priv->shrd)) {
2820 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
2821 goto done;
2822 }
2823
2824 /*
2825 * mac80211 will not push any more frames for transmit
2826 * until the flush is completed
2827 */
2828 if (drop) {
2829 IWL_DEBUG_MAC80211(priv, "send flush command\n");
2830 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
2831 IWL_ERR(priv, "flush request fail\n");
2832 goto done;
2833 }
2834 }
2835 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
2836 iwl_trans_wait_tx_queue_empty(trans(priv));
2837 done:
2838 mutex_unlock(&priv->shrd->mutex);
2839 IWL_DEBUG_MAC80211(priv, "leave\n");
2840 }
2841
2842 void iwlagn_disable_roc(struct iwl_priv *priv)
2843 {
2844 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2845
2846 lockdep_assert_held(&priv->shrd->mutex);
2847
2848 if (!priv->hw_roc_setup)
2849 return;
2850
2851 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2852 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
2853
2854 priv->hw_roc_channel = NULL;
2855
2856 memset(ctx->staging.node_addr, 0, ETH_ALEN);
2857
2858 iwlagn_commit_rxon(priv, ctx);
2859
2860 ctx->is_active = false;
2861 priv->hw_roc_setup = false;
2862 }
2863
2864 static void iwlagn_disable_roc_work(struct work_struct *work)
2865 {
2866 struct iwl_priv *priv = container_of(work, struct iwl_priv,
2867 hw_roc_disable_work.work);
2868
2869 mutex_lock(&priv->shrd->mutex);
2870 iwlagn_disable_roc(priv);
2871 mutex_unlock(&priv->shrd->mutex);
2872 }
2873
2874 static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
2875 struct ieee80211_channel *channel,
2876 enum nl80211_channel_type channel_type,
2877 int duration)
2878 {
2879 struct iwl_priv *priv = hw->priv;
2880 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
2881 int err = 0;
2882
2883 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2884 return -EOPNOTSUPP;
2885
2886 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
2887 return -EOPNOTSUPP;
2888
2889 mutex_lock(&priv->shrd->mutex);
2890
2891 /*
2892 * TODO: Remove this hack! Firmware needs to be updated
2893 * to allow longer off-channel periods in scanning for
2894 * this use case, based on a flag (and we'll need an API
2895 * flag in the firmware when it has that).
2896 */
2897 if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && duration > 80)
2898 duration = 80;
2899
2900 if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2901 err = -EBUSY;
2902 goto out;
2903 }
2904
2905 priv->hw_roc_channel = channel;
2906 priv->hw_roc_chantype = channel_type;
2907 priv->hw_roc_duration = duration;
2908 cancel_delayed_work(&priv->hw_roc_disable_work);
2909
2910 if (!ctx->is_active) {
2911 ctx->is_active = true;
2912 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2913 memcpy(ctx->staging.node_addr,
2914 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2915 ETH_ALEN);
2916 memcpy(ctx->staging.bssid_addr,
2917 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2918 ETH_ALEN);
2919 err = iwlagn_commit_rxon(priv, ctx);
2920 if (err)
2921 goto out;
2922 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
2923 RXON_FILTER_PROMISC_MSK |
2924 RXON_FILTER_CTL2HOST_MSK;
2925
2926 err = iwlagn_commit_rxon(priv, ctx);
2927 if (err) {
2928 iwlagn_disable_roc(priv);
2929 goto out;
2930 }
2931 priv->hw_roc_setup = true;
2932 }
2933
2934 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
2935 if (err)
2936 iwlagn_disable_roc(priv);
2937
2938 out:
2939 mutex_unlock(&priv->shrd->mutex);
2940
2941 return err;
2942 }
2943
2944 static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
2945 {
2946 struct iwl_priv *priv = hw->priv;
2947
2948 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
2949 return -EOPNOTSUPP;
2950
2951 mutex_lock(&priv->shrd->mutex);
2952 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
2953 iwlagn_disable_roc(priv);
2954 mutex_unlock(&priv->shrd->mutex);
2955
2956 return 0;
2957 }
2958
2959 static int iwl_mac_tx_sync(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2960 const u8 *bssid, enum ieee80211_tx_sync_type type)
2961 {
2962 struct iwl_priv *priv = hw->priv;
2963 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2964 struct iwl_rxon_context *ctx = vif_priv->ctx;
2965 int ret;
2966 u8 sta_id;
2967
2968 mutex_lock(&priv->shrd->mutex);
2969
2970 if (iwl_is_associated_ctx(ctx)) {
2971 ret = 0;
2972 goto out;
2973 }
2974
2975 if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2976 ret = -EBUSY;
2977 goto out;
2978 }
2979
2980 ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
2981 if (ret)
2982 goto out;
2983
2984 if (WARN_ON(sta_id != ctx->ap_sta_id)) {
2985 ret = -EIO;
2986 goto out_remove_sta;
2987 }
2988
2989 memcpy(ctx->bssid, bssid, ETH_ALEN);
2990 ctx->preauth_bssid = true;
2991
2992 ret = iwlagn_commit_rxon(priv, ctx);
2993
2994 if (ret == 0)
2995 goto out;
2996
2997 out_remove_sta:
2998 iwl_remove_station(priv, sta_id, bssid);
2999 out:
3000 mutex_unlock(&priv->shrd->mutex);
3001 return ret;
3002 }
3003
3004 static void iwl_mac_finish_tx_sync(struct ieee80211_hw *hw,
3005 struct ieee80211_vif *vif,
3006 const u8 *bssid,
3007 enum ieee80211_tx_sync_type type)
3008 {
3009 struct iwl_priv *priv = hw->priv;
3010 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
3011 struct iwl_rxon_context *ctx = vif_priv->ctx;
3012
3013 mutex_lock(&priv->shrd->mutex);
3014
3015 if (iwl_is_associated_ctx(ctx))
3016 goto out;
3017
3018 iwl_remove_station(priv, ctx->ap_sta_id, bssid);
3019 ctx->preauth_bssid = false;
3020 /* no need to commit */
3021 out:
3022 mutex_unlock(&priv->shrd->mutex);
3023 }
3024
3025 /*****************************************************************************
3026 *
3027 * driver setup and teardown
3028 *
3029 *****************************************************************************/
3030
3031 static void iwl_setup_deferred_work(struct iwl_priv *priv)
3032 {
3033 priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME);
3034
3035 init_waitqueue_head(&priv->shrd->wait_command_queue);
3036
3037 INIT_WORK(&priv->restart, iwl_bg_restart);
3038 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
3039 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
3040 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
3041 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
3042 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
3043 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
3044 iwlagn_disable_roc_work);
3045
3046 iwl_setup_scan_deferred_work(priv);
3047
3048 if (priv->cfg->lib->bt_setup_deferred_work)
3049 priv->cfg->lib->bt_setup_deferred_work(priv);
3050
3051 init_timer(&priv->statistics_periodic);
3052 priv->statistics_periodic.data = (unsigned long)priv;
3053 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
3054
3055 init_timer(&priv->ucode_trace);
3056 priv->ucode_trace.data = (unsigned long)priv;
3057 priv->ucode_trace.function = iwl_bg_ucode_trace;
3058
3059 init_timer(&priv->watchdog);
3060 priv->watchdog.data = (unsigned long)priv;
3061 priv->watchdog.function = iwl_bg_watchdog;
3062 }
3063
3064 static void iwl_cancel_deferred_work(struct iwl_priv *priv)
3065 {
3066 if (priv->cfg->lib->cancel_deferred_work)
3067 priv->cfg->lib->cancel_deferred_work(priv);
3068
3069 cancel_work_sync(&priv->run_time_calib_work);
3070 cancel_work_sync(&priv->beacon_update);
3071
3072 iwl_cancel_scan_deferred_work(priv);
3073
3074 cancel_work_sync(&priv->bt_full_concurrency);
3075 cancel_work_sync(&priv->bt_runtime_config);
3076 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
3077
3078 del_timer_sync(&priv->statistics_periodic);
3079 del_timer_sync(&priv->ucode_trace);
3080 }
3081
3082 static void iwl_init_hw_rates(struct iwl_priv *priv,
3083 struct ieee80211_rate *rates)
3084 {
3085 int i;
3086
3087 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
3088 rates[i].bitrate = iwl_rates[i].ieee * 5;
3089 rates[i].hw_value = i; /* Rate scaling will work on indexes */
3090 rates[i].hw_value_short = i;
3091 rates[i].flags = 0;
3092 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
3093 /*
3094 * If CCK != 1M then set short preamble rate flag.
3095 */
3096 rates[i].flags |=
3097 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
3098 0 : IEEE80211_RATE_SHORT_PREAMBLE;
3099 }
3100 }
3101 }
3102
3103 static int iwl_init_drv(struct iwl_priv *priv)
3104 {
3105 int ret;
3106
3107 spin_lock_init(&priv->shrd->sta_lock);
3108
3109 mutex_init(&priv->shrd->mutex);
3110
3111 priv->ieee_channels = NULL;
3112 priv->ieee_rates = NULL;
3113 priv->band = IEEE80211_BAND_2GHZ;
3114
3115 priv->iw_mode = NL80211_IFTYPE_STATION;
3116 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
3117 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
3118 priv->agg_tids_count = 0;
3119
3120 /* initialize force reset */
3121 priv->force_reset[IWL_RF_RESET].reset_duration =
3122 IWL_DELAY_NEXT_FORCE_RF_RESET;
3123 priv->force_reset[IWL_FW_RESET].reset_duration =
3124 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
3125
3126 priv->rx_statistics_jiffies = jiffies;
3127
3128 /* Choose which receivers/antennas to use */
3129 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
3130
3131 iwl_init_scan_params(priv);
3132
3133 /* init bt coex */
3134 if (priv->cfg->bt_params &&
3135 priv->cfg->bt_params->advanced_bt_coexist) {
3136 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3137 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3138 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
3139 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3140 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3141 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
3142 }
3143
3144 ret = iwl_init_channel_map(priv);
3145 if (ret) {
3146 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3147 goto err;
3148 }
3149
3150 ret = iwl_init_geos(priv);
3151 if (ret) {
3152 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3153 goto err_free_channel_map;
3154 }
3155 iwl_init_hw_rates(priv, priv->ieee_rates);
3156
3157 return 0;
3158
3159 err_free_channel_map:
3160 iwl_free_channel_map(priv);
3161 err:
3162 return ret;
3163 }
3164
3165 static void iwl_uninit_drv(struct iwl_priv *priv)
3166 {
3167 iwl_calib_free_results(priv);
3168 iwl_free_geos(priv);
3169 iwl_free_channel_map(priv);
3170 if (priv->tx_cmd_pool)
3171 kmem_cache_destroy(priv->tx_cmd_pool);
3172 kfree(priv->scan_cmd);
3173 kfree(priv->beacon_cmd);
3174 #ifdef CONFIG_IWLWIFI_DEBUGFS
3175 kfree(priv->wowlan_sram);
3176 #endif
3177 }
3178
3179 static void iwl_mac_rssi_callback(struct ieee80211_hw *hw,
3180 enum ieee80211_rssi_event rssi_event)
3181 {
3182 struct iwl_priv *priv = hw->priv;
3183
3184 mutex_lock(&priv->shrd->mutex);
3185
3186 if (priv->cfg->bt_params &&
3187 priv->cfg->bt_params->advanced_bt_coexist) {
3188 if (rssi_event == RSSI_EVENT_LOW)
3189 priv->bt_enable_pspoll = true;
3190 else if (rssi_event == RSSI_EVENT_HIGH)
3191 priv->bt_enable_pspoll = false;
3192
3193 iwlagn_send_advance_bt_config(priv);
3194 } else {
3195 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
3196 "ignoring RSSI callback\n");
3197 }
3198
3199 mutex_unlock(&priv->shrd->mutex);
3200 }
3201
3202 struct ieee80211_ops iwlagn_hw_ops = {
3203 .tx = iwlagn_mac_tx,
3204 .start = iwlagn_mac_start,
3205 .stop = iwlagn_mac_stop,
3206 #ifdef CONFIG_PM
3207 .suspend = iwlagn_mac_suspend,
3208 .resume = iwlagn_mac_resume,
3209 #endif
3210 .add_interface = iwl_mac_add_interface,
3211 .remove_interface = iwl_mac_remove_interface,
3212 .change_interface = iwl_mac_change_interface,
3213 .config = iwlagn_mac_config,
3214 .configure_filter = iwlagn_configure_filter,
3215 .set_key = iwlagn_mac_set_key,
3216 .update_tkip_key = iwlagn_mac_update_tkip_key,
3217 .set_rekey_data = iwlagn_mac_set_rekey_data,
3218 .conf_tx = iwl_mac_conf_tx,
3219 .bss_info_changed = iwlagn_bss_info_changed,
3220 .ampdu_action = iwlagn_mac_ampdu_action,
3221 .hw_scan = iwl_mac_hw_scan,
3222 .sta_notify = iwlagn_mac_sta_notify,
3223 .sta_add = iwlagn_mac_sta_add,
3224 .sta_remove = iwl_mac_sta_remove,
3225 .channel_switch = iwlagn_mac_channel_switch,
3226 .flush = iwlagn_mac_flush,
3227 .tx_last_beacon = iwl_mac_tx_last_beacon,
3228 .remain_on_channel = iwl_mac_remain_on_channel,
3229 .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
3230 .rssi_callback = iwl_mac_rssi_callback,
3231 CFG80211_TESTMODE_CMD(iwl_testmode_cmd)
3232 CFG80211_TESTMODE_DUMP(iwl_testmode_dump)
3233 .tx_sync = iwl_mac_tx_sync,
3234 .finish_tx_sync = iwl_mac_finish_tx_sync,
3235 };
3236
3237 static u32 iwl_hw_detect(struct iwl_priv *priv)
3238 {
3239 return iwl_read32(bus(priv), CSR_HW_REV);
3240 }
3241
3242 /* Size of one Rx buffer in host DRAM */
3243 #define IWL_RX_BUF_SIZE_4K (4 * 1024)
3244 #define IWL_RX_BUF_SIZE_8K (8 * 1024)
3245
3246 static int iwl_set_hw_params(struct iwl_priv *priv)
3247 {
3248 if (iwlagn_mod_params.amsdu_size_8K)
3249 hw_params(priv).rx_page_order =
3250 get_order(IWL_RX_BUF_SIZE_8K);
3251 else
3252 hw_params(priv).rx_page_order =
3253 get_order(IWL_RX_BUF_SIZE_4K);
3254
3255 if (iwlagn_mod_params.disable_11n)
3256 priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
3257
3258 hw_params(priv).num_ampdu_queues =
3259 priv->cfg->base_params->num_of_ampdu_queues;
3260 hw_params(priv).shadow_reg_enable =
3261 priv->cfg->base_params->shadow_reg_enable;
3262 hw_params(priv).sku = priv->cfg->sku;
3263 hw_params(priv).wd_timeout = priv->cfg->base_params->wd_timeout;
3264
3265 /* Device-specific setup */
3266 return priv->cfg->lib->set_hw_params(priv);
3267 }
3268
3269 /* This function both allocates and initializes hw and priv. */
3270 static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
3271 {
3272 struct iwl_priv *priv;
3273 /* mac80211 allocates memory for this device instance, including
3274 * space for this driver's private structure */
3275 struct ieee80211_hw *hw;
3276
3277 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
3278 if (hw == NULL) {
3279 pr_err("%s: Can not allocate network device\n",
3280 cfg->name);
3281 goto out;
3282 }
3283
3284 priv = hw->priv;
3285 priv->hw = hw;
3286
3287 out:
3288 return hw;
3289 }
3290
3291 int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
3292 struct iwl_cfg *cfg)
3293 {
3294 int err = 0;
3295 struct iwl_priv *priv;
3296 struct ieee80211_hw *hw;
3297 u16 num_mac;
3298 u32 hw_rev;
3299
3300 /************************
3301 * 1. Allocating HW data
3302 ************************/
3303 hw = iwl_alloc_all(cfg);
3304 if (!hw) {
3305 err = -ENOMEM;
3306 goto out;
3307 }
3308
3309 priv = hw->priv;
3310 priv->bus = bus;
3311 priv->shrd = &priv->_shrd;
3312 priv->shrd->bus = bus;
3313 priv->shrd->priv = priv;
3314 priv->shrd->hw = hw;
3315 bus_set_drv_data(priv->bus, priv->shrd);
3316
3317 priv->shrd->trans = trans_ops->alloc(priv->shrd);
3318 if (priv->shrd->trans == NULL) {
3319 err = -ENOMEM;
3320 goto out_free_traffic_mem;
3321 }
3322
3323 /* At this point both hw and priv are allocated. */
3324
3325 SET_IEEE80211_DEV(hw, priv->bus->dev);
3326
3327 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
3328 priv->cfg = cfg;
3329
3330 /* is antenna coupling more than 35dB ? */
3331 priv->bt_ant_couple_ok =
3332 (iwlagn_mod_params.ant_coupling >
3333 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3334 true : false;
3335
3336 /* enable/disable bt channel inhibition */
3337 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
3338 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3339 (priv->bt_ch_announce) ? "On" : "Off");
3340
3341 if (iwl_alloc_traffic_mem(priv))
3342 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
3343
3344 /* these spin locks will be used in apm_ops.init and EEPROM access
3345 * we should init now
3346 */
3347 spin_lock_init(&bus(priv)->reg_lock);
3348 spin_lock_init(&priv->shrd->lock);
3349
3350 /*
3351 * stop and reset the on-board processor just in case it is in a
3352 * strange state ... like being left stranded by a primary kernel
3353 * and this is now the kdump kernel trying to start up
3354 */
3355 iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
3356
3357 /***********************
3358 * 3. Read REV register
3359 ***********************/
3360 hw_rev = iwl_hw_detect(priv);
3361 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
3362 priv->cfg->name, hw_rev);
3363
3364 err = iwl_trans_request_irq(trans(priv));
3365 if (err)
3366 goto out_free_trans;
3367
3368 if (iwl_trans_prepare_card_hw(trans(priv))) {
3369 err = -EIO;
3370 IWL_WARN(priv, "Failed, HW not ready\n");
3371 goto out_free_trans;
3372 }
3373
3374 /*****************
3375 * 4. Read EEPROM
3376 *****************/
3377 /* Read the EEPROM */
3378 err = iwl_eeprom_init(priv, hw_rev);
3379 if (err) {
3380 IWL_ERR(priv, "Unable to init EEPROM\n");
3381 goto out_free_trans;
3382 }
3383 err = iwl_eeprom_check_version(priv);
3384 if (err)
3385 goto out_free_eeprom;
3386
3387 err = iwl_eeprom_check_sku(priv);
3388 if (err)
3389 goto out_free_eeprom;
3390
3391 /* extract MAC Address */
3392 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
3393 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
3394 priv->hw->wiphy->addresses = priv->addresses;
3395 priv->hw->wiphy->n_addresses = 1;
3396 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
3397 if (num_mac > 1) {
3398 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
3399 ETH_ALEN);
3400 priv->addresses[1].addr[5]++;
3401 priv->hw->wiphy->n_addresses++;
3402 }
3403
3404 /************************
3405 * 5. Setup HW constants
3406 ************************/
3407 if (iwl_set_hw_params(priv)) {
3408 err = -ENOENT;
3409 IWL_ERR(priv, "failed to set hw parameters\n");
3410 goto out_free_eeprom;
3411 }
3412
3413 /*******************
3414 * 6. Setup priv
3415 *******************/
3416
3417 err = iwl_init_drv(priv);
3418 if (err)
3419 goto out_free_eeprom;
3420 /* At this point both hw and priv are initialized. */
3421
3422 /********************
3423 * 7. Setup services
3424 ********************/
3425 iwl_setup_deferred_work(priv);
3426 iwl_setup_rx_handlers(priv);
3427 iwl_testmode_init(priv);
3428
3429 /*********************************************
3430 * 8. Enable interrupts
3431 *********************************************/
3432
3433 iwl_enable_rfkill_int(priv);
3434
3435 /* If platform's RF_KILL switch is NOT set to KILL */
3436 if (iwl_read32(bus(priv),
3437 CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
3438 clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3439 else
3440 set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
3441
3442 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
3443 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
3444
3445 iwl_power_initialize(priv);
3446 iwl_tt_initialize(priv);
3447
3448 init_completion(&priv->firmware_loading_complete);
3449
3450 err = iwl_request_firmware(priv, true);
3451 if (err)
3452 goto out_destroy_workqueue;
3453
3454 return 0;
3455
3456 out_destroy_workqueue:
3457 destroy_workqueue(priv->shrd->workqueue);
3458 priv->shrd->workqueue = NULL;
3459 iwl_uninit_drv(priv);
3460 out_free_eeprom:
3461 iwl_eeprom_free(priv);
3462 out_free_trans:
3463 iwl_trans_free(trans(priv));
3464 out_free_traffic_mem:
3465 iwl_free_traffic_mem(priv);
3466 ieee80211_free_hw(priv->hw);
3467 out:
3468 return err;
3469 }
3470
3471 void __devexit iwl_remove(struct iwl_priv * priv)
3472 {
3473 wait_for_completion(&priv->firmware_loading_complete);
3474
3475 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
3476
3477 iwl_dbgfs_unregister(priv);
3478 sysfs_remove_group(&priv->bus->dev->kobj,
3479 &iwl_attribute_group);
3480
3481 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3482 * to be called and iwl_down since we are removing the device
3483 * we need to set STATUS_EXIT_PENDING bit.
3484 */
3485 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
3486
3487 iwl_testmode_cleanup(priv);
3488 iwl_leds_exit(priv);
3489
3490 if (priv->shrd->mac80211_registered) {
3491 ieee80211_unregister_hw(priv->hw);
3492 priv->shrd->mac80211_registered = 0;
3493 }
3494
3495 iwl_tt_exit(priv);
3496
3497 /*This will stop the queues, move the device to low power state */
3498 iwl_trans_stop_device(trans(priv));
3499
3500 iwl_dealloc_ucode(priv);
3501
3502 iwl_eeprom_free(priv);
3503
3504 /*netif_stop_queue(dev); */
3505 flush_workqueue(priv->shrd->workqueue);
3506
3507 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
3508 * priv->shrd->workqueue... so we can't take down the workqueue
3509 * until now... */
3510 destroy_workqueue(priv->shrd->workqueue);
3511 priv->shrd->workqueue = NULL;
3512 iwl_free_traffic_mem(priv);
3513
3514 iwl_trans_free(trans(priv));
3515
3516 bus_set_drv_data(priv->bus, NULL);
3517
3518 iwl_uninit_drv(priv);
3519
3520 dev_kfree_skb(priv->beacon_skb);
3521
3522 ieee80211_free_hw(priv->hw);
3523 }
3524
3525
3526 /*****************************************************************************
3527 *
3528 * driver and module entry point
3529 *
3530 *****************************************************************************/
3531 static int __init iwl_init(void)
3532 {
3533
3534 int ret;
3535 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
3536 pr_info(DRV_COPYRIGHT "\n");
3537
3538 ret = iwlagn_rate_control_register();
3539 if (ret) {
3540 pr_err("Unable to register rate control algorithm: %d\n", ret);
3541 return ret;
3542 }
3543
3544 ret = iwl_pci_register_driver();
3545
3546 if (ret)
3547 goto error_register;
3548 return ret;
3549
3550 error_register:
3551 iwlagn_rate_control_unregister();
3552 return ret;
3553 }
3554
3555 static void __exit iwl_exit(void)
3556 {
3557 iwl_pci_unregister_driver();
3558 iwlagn_rate_control_unregister();
3559 }
3560
3561 module_exit(iwl_exit);
3562 module_init(iwl_init);
3563
3564 #ifdef CONFIG_IWLWIFI_DEBUG
3565 module_param_named(debug, iwlagn_mod_params.debug_level, uint,
3566 S_IRUGO | S_IWUSR);
3567 MODULE_PARM_DESC(debug, "debug output mask");
3568 #endif
3569
3570 module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
3571 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
3572 module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
3573 MODULE_PARM_DESC(queues_num, "number of hw queues.");
3574 module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
3575 MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
3576 module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
3577 int, S_IRUGO);
3578 MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
3579 module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
3580 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
3581
3582 module_param_named(ucode_alternative,
3583 iwlagn_mod_params.wanted_ucode_alternative,
3584 int, S_IRUGO);
3585 MODULE_PARM_DESC(ucode_alternative,
3586 "specify ucode alternative to use from ucode file");
3587
3588 module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
3589 int, S_IRUGO);
3590 MODULE_PARM_DESC(antenna_coupling,
3591 "specify antenna coupling in dB (defualt: 0 dB)");
3592
3593 module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
3594 bool, S_IRUGO);
3595 MODULE_PARM_DESC(bt_ch_inhibition,
3596 "Enable BT channel inhibition (default: enable)");
3597
3598 module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
3599 MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
3600
3601 module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
3602 MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
3603
3604 module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
3605 MODULE_PARM_DESC(wd_disable,
3606 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3607
3608 /*
3609 * set bt_coex_active to true, uCode will do kill/defer
3610 * every time the priority line is asserted (BT is sending signals on the
3611 * priority line in the PCIx).
3612 * set bt_coex_active to false, uCode will ignore the BT activity and
3613 * perform the normal operation
3614 *
3615 * User might experience transmit issue on some platform due to WiFi/BT
3616 * co-exist problem. The possible behaviors are:
3617 * Able to scan and finding all the available AP
3618 * Not able to associate with any AP
3619 * On those platforms, WiFi communication can be restored by set
3620 * "bt_coex_active" module parameter to "false"
3621 *
3622 * default: bt_coex_active = true (BT_COEX_ENABLE)
3623 */
3624 module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
3625 bool, S_IRUGO);
3626 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
3627
3628 module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
3629 MODULE_PARM_DESC(led_mode, "0=system default, "
3630 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3631
3632 module_param_named(power_save, iwlagn_mod_params.power_save,
3633 bool, S_IRUGO);
3634 MODULE_PARM_DESC(power_save,
3635 "enable WiFi power management (default: disable)");
3636
3637 module_param_named(power_level, iwlagn_mod_params.power_level,
3638 int, S_IRUGO);
3639 MODULE_PARM_DESC(power_level,
3640 "default power save level (range from 1 - 5, default: 1)");
3641
3642 module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
3643 bool, S_IRUGO);
3644 MODULE_PARM_DESC(auto_agg,
3645 "enable agg w/o check traffic load (default: enable)");
3646
3647 /*
3648 * For now, keep using power level 1 instead of automatically
3649 * adjusting ...
3650 */
3651 module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
3652 bool, S_IRUGO);
3653 MODULE_PARM_DESC(no_sleep_autoadjust,
3654 "don't automatically adjust sleep level "
3655 "according to maximum network latency (default: true)");
Linux kernel - Deliverables
This page took 0.10567 seconds and 6 git commands to generate.