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iwlagn: remove common station priv
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / iwl-agn.c
CommitLineData
b481de9c
ZY		 1/******************************************************************************
2 *
901069c7 3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
b481de9c
ZY		 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:
759ef89f 25 * Intel Linux Wireless <ilw@linux.intel.com>
b481de9c
ZY		 26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
b481de9c
ZY		 29#include <linux/kernel.h>
30#include <linux/module.h>
b481de9c 31#include <linux/init.h>
5a0e3ad6 32#include <linux/slab.h>
b481de9c
ZY		 33#include <linux/dma-mapping.h>
34#include <linux/delay.h>
d43c36dc 35#include <linux/sched.h>
b481de9c
ZY		 36#include <linux/skbuff.h>
37#include <linux/netdevice.h>
b481de9c 38#include <linux/firmware.h>
b481de9c
ZY		 39#include <linux/etherdevice.h>
40#include <linux/if_arp.h>
41
b481de9c
ZY		 42#include <net/mac80211.h>
43
44#include <asm/div64.h>
45
6bc913bd 46#include "iwl-eeprom.h"
3e0d4cb1 47#include "iwl-dev.h"
fee1247a 48#include "iwl-core.h"
3395f6e9 49#include "iwl-io.h"
b481de9c 50#include "iwl-helpers.h"
6974e363 51#include "iwl-sta.h"
0de76736 52#include "iwl-agn-calib.h"
a1175124 53#include "iwl-agn.h"
48f20d35 54#include "iwl-shared.h"
d5934110 55#include "iwl-bus.h"
c85eb619 56#include "iwl-trans.h"
416e1438 57
b481de9c
ZY		 58/******************************************************************************
59 *
60 * module boiler plate
61 *
62 ******************************************************************************/
63
b481de9c
ZY		 64/*
65 * module name, copyright, version, etc.
b481de9c 66 */
d783b061 67#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
b481de9c 68
0a6857e7 69#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 70#define VD "d"
71#else
72#define VD
73#endif
74
81963d68 75#define DRV_VERSION IWLWIFI_VERSION VD
b481de9c 76
b481de9c
ZY		 77
78MODULE_DESCRIPTION(DRV_DESCRIPTION);
79MODULE_VERSION(DRV_VERSION);
a7b75207 80MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
b481de9c
ZY		 81MODULE_LICENSE("GPL");
82
5b9f8cd3 83void iwl_update_chain_flags(struct iwl_priv *priv)
5da4b55f 84{
246ed355 85 struct iwl_rxon_context *ctx;
5da4b55f 86
e3f10cea
WYG		 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);
246ed355 91 }
5da4b55f
MA		 92}
93
47ff65c4
DH		 94/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
95static void iwl_set_beacon_tim(struct iwl_priv *priv,
77834543
JB		 96 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
97 u8 *beacon, u32 frame_size)
47ff65c4
DH		 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
8a98d49e 121int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
4bf64efd
TW		 122{
123 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
8a98d49e
JB		 124 struct iwl_host_cmd cmd = {
125 .id = REPLY_TX_BEACON,
e419d62d 126 .flags = CMD_SYNC,
8a98d49e 127 };
0b5b3ff1 128 struct ieee80211_tx_info *info;
47ff65c4
DH		 129 u32 frame_size;
130 u32 rate_flags;
131 u32 rate;
8a98d49e 132
47ff65c4
DH		 133 /*
134 * We have to set up the TX command, the TX Beacon command, and the
135 * beacon contents.
136 */
4bf64efd 137
6ac2f839 138 lockdep_assert_held(&priv->shrd->mutex);
76d04815
JB		 139
140 if (!priv->beacon_ctx) {
141 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
950094cb 142 return 0;
76d04815
JB		 143 }
144
8a98d49e
JB		 145 if (WARN_ON(!priv->beacon_skb))
146 return -EINVAL;
147
4ce7cc2b
JB		 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;
8a98d49e
JB		 152 if (!tx_beacon_cmd)
153 return -ENOMEM;
154
155 frame_size = priv->beacon_skb->len;
4bf64efd 156
47ff65c4 157 /* Set up TX command fields */
4bf64efd 158 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
76d04815 159 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
47ff65c4
DH		 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;
4bf64efd 163
47ff65c4 164 /* Set up TX beacon command fields */
4ce7cc2b 165 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
77834543 166 frame_size);
4bf64efd 167
47ff65c4 168 /* Set up packet rate and flags */
0b5b3ff1
JB		 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
0e1654fa 182 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
d6189124 183 hw_params(priv).valid_tx_ant);
47ff65c4 184 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
0b5b3ff1
JB		 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)
47ff65c4 190 rate_flags |= RATE_MCS_CCK_MSK;
0b5b3ff1
JB		 191
192 tx_beacon_cmd->tx.rate_n_flags =
193 iwl_hw_set_rate_n_flags(rate, rate_flags);
4bf64efd 194
8a98d49e 195 /* Submit command */
4ce7cc2b 196 cmd.len[0] = sizeof(*tx_beacon_cmd);
3fa50738 197 cmd.data[0] = tx_beacon_cmd;
4ce7cc2b
JB		 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;
7aaa1d79 202
e6bb4c9c 203 return iwl_trans_send_cmd(trans(priv), &cmd);
a8e74e27
SO		 204}
205
5b9f8cd3 206static void iwl_bg_beacon_update(struct work_struct *work)
b481de9c 207{
c79dd5b5
TW		 208 struct iwl_priv *priv =
209 container_of(work, struct iwl_priv, beacon_update);
b481de9c
ZY		 210 struct sk_buff *beacon;
211
6ac2f839 212 mutex_lock(&priv->shrd->mutex);
76d04815
JB		 213 if (!priv->beacon_ctx) {
214 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
215 goto out;
216 }
b481de9c 217
60744f62
JB		 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
76d04815
JB		 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);
b481de9c 230 if (!beacon) {
77834543 231 IWL_ERR(priv, "update beacon failed -- keeping old\n");
76d04815 232 goto out;
b481de9c
ZY		 233 }
234
b481de9c 235 /* new beacon skb is allocated every time; dispose previous.*/
77834543 236 dev_kfree_skb(priv->beacon_skb);
b481de9c 237
12e934dc 238 priv->beacon_skb = beacon;
b481de9c 239
2295c66b 240 iwlagn_send_beacon_cmd(priv);
76d04815 241 out:
6ac2f839 242 mutex_unlock(&priv->shrd->mutex);
b481de9c
ZY		 243}
244
fbba9410
WYG		 245static 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
63013ae3 250 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
fbba9410
WYG		 251 return;
252
253 /* dont send host command if rf-kill is on */
845a9c0d 254 if (!iwl_is_ready_rf(priv->shrd))
fbba9410 255 return;
e55b517c 256 iwlagn_send_advance_bt_config(priv);
fbba9410
WYG		 257}
258
bee008b7
WYG		 259static 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);
246ed355 263 struct iwl_rxon_context *ctx;
bee008b7 264
6ac2f839 265 mutex_lock(&priv->shrd->mutex);
dc1a4068 266
63013ae3 267 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
dc1a4068 268 goto out;
bee008b7
WYG		 269
270 /* dont send host command if rf-kill is on */
845a9c0d 271 if (!iwl_is_ready_rf(priv->shrd))
dc1a4068 272 goto out;
bee008b7
WYG		 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 */
246ed355 282 for_each_context(priv, ctx) {
e3f10cea 283 iwlagn_set_rxon_chain(priv, ctx);
805a3b81 284 iwlagn_commit_rxon(priv, ctx);
246ed355 285 }
bee008b7 286
e55b517c 287 iwlagn_send_advance_bt_config(priv);
dc1a4068 288out:
6ac2f839 289 mutex_unlock(&priv->shrd->mutex);
bee008b7
WYG		 290}
291
4e39317d 292/**
5b9f8cd3 293 * iwl_bg_statistics_periodic - Timer callback to queue statistics
4e39317d
EG		 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 */
5b9f8cd3 302static void iwl_bg_statistics_periodic(unsigned long data)
4e39317d
EG		 303{
304 struct iwl_priv *priv = (struct iwl_priv *)data;
305
63013ae3 306 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4e39317d
EG		 307 return;
308
61780ee3 309 /* dont send host command if rf-kill is on */
845a9c0d 310 if (!iwl_is_ready_rf(priv->shrd))
61780ee3
MA		 311 return;
312
ef8d5529 313 iwl_send_statistics_request(priv, CMD_ASYNC, false);
4e39317d
EG		 314}
315
a9e1cb6a
WYG		 316
317static 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 */
83ed9015
EG		 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);
a9e1cb6a
WYG		 335 return;
336 }
337
338 /* Set starting address; reads will auto-increment */
83ed9015 339 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr);
a9e1cb6a
WYG		 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++) {
83ed9015
EG		 347 ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
348 time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
a9e1cb6a
WYG		 349 if (mode == 0) {
350 trace_iwlwifi_dev_ucode_cont_event(priv,
351 0, time, ev);
352 } else {
83ed9015 353 data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
a9e1cb6a
WYG		 354 trace_iwlwifi_dev_ucode_cont_event(priv,
355 time, data, ev);
356 }
357 }
358 /* Allow device to power down */
83ed9015
EG		 359 iwl_release_nic_access(bus(priv));
360 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
a9e1cb6a
WYG		 361}
362
875295f1 363static void iwl_continuous_event_trace(struct iwl_priv *priv)
a9e1cb6a
WYG		 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
d7d5783c 371 base = priv->device_pointers.error_event_table;
4caab328 372 if (iwlagn_hw_valid_rtc_data_addr(base)) {
83ed9015
EG		 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)));
a9e1cb6a
WYG		 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 */
425static void iwl_bg_ucode_trace(unsigned long data)
426{
427 struct iwl_priv *priv = (struct iwl_priv *)data;
428
63013ae3 429 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
a9e1cb6a
WYG		 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
65550636
WYG		 440static 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
63013ae3 445 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
65550636
WYG		 446 return;
447
448 /* do nothing if rf-kill is on */
845a9c0d 449 if (!iwl_is_ready_rf(priv->shrd))
65550636
WYG		 450 return;
451
c68744fb
WYG		 452 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
453 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
65550636
WYG		 454}
455
b481de9c
ZY		 456/******************************************************************************
457 *
458 * uCode download functions
459 *
460 ******************************************************************************/
461
3599d39a 462static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc)
dbf28e21
JB		 463{
464 if (desc->v_addr)
d5934110 465 dma_free_coherent(priv->bus->dev, desc->len,
dbf28e21
JB		 466 desc->v_addr, desc->p_addr);
467 desc->v_addr = NULL;
468 desc->len = 0;
469}
470
3599d39a 471static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img)
dbf28e21 472{
3599d39a
EG		 473 iwl_free_fw_desc(priv, &img->code);
474 iwl_free_fw_desc(priv, &img->data);
dbf28e21
JB		 475}
476
3599d39a
EG		 477static void iwl_dealloc_ucode(struct iwl_priv *priv)
478{
479 iwl_free_fw_img(priv, &priv->ucode_rt);
480 iwl_free_fw_img(priv, &priv->ucode_init);
c8ac61cf 481 iwl_free_fw_img(priv, &priv->ucode_wowlan);
3599d39a
EG		 482}
483
484static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc,
dbf28e21
JB		 485 const void *data, size_t len)
486{
487 if (!len) {
488 desc->v_addr = NULL;
489 return -EINVAL;
490 }
491
d5934110 492 desc->v_addr = dma_alloc_coherent(priv->bus->dev, len,
dbf28e21
JB		 493 &desc->p_addr, GFP_KERNEL);
494 if (!desc->v_addr)
495 return -ENOMEM;
3599d39a 496
dbf28e21
JB		 497 desc->len = len;
498 memcpy(desc->v_addr, data, len);
499 return 0;
500}
501
4d2a5d0e
JB		 502static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
503{
4d2a5d0e
JB		 504 int i;
505
506 /*
507 * The default context is always valid,
508 * the PAN context depends on uCode.
509 */
7a10e3e4 510 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
4d2a5d0e 511 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
7a10e3e4 512 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
4d2a5d0e
JB		 513
514 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
515 priv->contexts[i].ctxid = i;
516
517 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
518 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
519 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
520 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
521 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
522 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
523 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
524 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
4d2a5d0e
JB		 525 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
526 BIT(NL80211_IFTYPE_ADHOC);
527 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
528 BIT(NL80211_IFTYPE_STATION);
529 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
530 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
531 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
532 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
533
534 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
535 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
536 REPLY_WIPAN_RXON_TIMING;
537 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
538 REPLY_WIPAN_RXON_ASSOC;
539 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
540 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
541 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
542 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
543 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
4d2a5d0e
JB		 544 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
545 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
c6baf7fb
JB		 546
547 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
548 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
549 BIT(NL80211_IFTYPE_P2P_CLIENT) |
550 BIT(NL80211_IFTYPE_P2P_GO);
551
4d2a5d0e
JB		 552 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
553 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
554 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
555
556 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
557}
558
559
dd7a2509
JB		 560struct iwlagn_ucode_capabilities {
561 u32 max_probe_length;
6a822d06 562 u32 standard_phy_calibration_size;
3997ff39 563 u32 flags;
dd7a2509 564};
edcdf8b2 565
b08dfd04 566static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
dd7a2509
JB		 567static int iwl_mac_setup_register(struct iwl_priv *priv,
568 struct iwlagn_ucode_capabilities *capa);
b08dfd04 569
39396085
JS		 570#define UCODE_EXPERIMENTAL_INDEX 100
571#define UCODE_EXPERIMENTAL_TAG "exp"
572
b08dfd04
JB		 573static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
574{
575 const char *name_pre = priv->cfg->fw_name_pre;
39396085 576 char tag[8];
b08dfd04 577
39396085
JS		 578 if (first) {
579#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
580 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
581 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
582 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
583#endif
b08dfd04 584 priv->fw_index = priv->cfg->ucode_api_max;
39396085
JS		 585 sprintf(tag, "%d", priv->fw_index);
586 } else {
b08dfd04 587 priv->fw_index--;
39396085
JS		 588 sprintf(tag, "%d", priv->fw_index);
589 }
b08dfd04
JB		 590
591 if (priv->fw_index < priv->cfg->ucode_api_min) {
592 IWL_ERR(priv, "no suitable firmware found!\n");
593 return -ENOENT;
594 }
595
39396085 596 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
b08dfd04 597
39396085
JS		 598 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
599 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
600 ? "EXPERIMENTAL " : "",
b08dfd04
JB		 601 priv->firmware_name);
602
603 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
d5934110 604 priv->bus->dev,
3599d39a 605 GFP_KERNEL, priv, iwl_ucode_callback);
b08dfd04
JB		 606}
607
0e9a44dc 608struct iwlagn_firmware_pieces {
c8ac61cf
JB		 609 const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
610 size_t inst_size, data_size, init_size, init_data_size,
611 wowlan_inst_size, wowlan_data_size;
0e9a44dc
JB		 612
613 u32 build;
b2e640d4
JB		 614
615 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
616 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
0e9a44dc
JB		 617};
618
619static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
620 const struct firmware *ucode_raw,
621 struct iwlagn_firmware_pieces *pieces)
622{
623 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
624 u32 api_ver, hdr_size;
625 const u8 *src;
626
627 priv->ucode_ver = le32_to_cpu(ucode->ver);
628 api_ver = IWL_UCODE_API(priv->ucode_ver);
629
630 switch (api_ver) {
631 default:
f7d046f9
WYG		 632 hdr_size = 28;
633 if (ucode_raw->size < hdr_size) {
634 IWL_ERR(priv, "File size too small!\n");
635 return -EINVAL;
0e9a44dc 636 }
f7d046f9
WYG		 637 pieces->build = le32_to_cpu(ucode->u.v2.build);
638 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
639 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
640 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
641 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
f7d046f9
WYG		 642 src = ucode->u.v2.data;
643 break;
0e9a44dc
JB		 644 case 0:
645 case 1:
646 case 2:
647 hdr_size = 24;
648 if (ucode_raw->size < hdr_size) {
649 IWL_ERR(priv, "File size too small!\n");
650 return -EINVAL;
651 }
652 pieces->build = 0;
653 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
654 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
655 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
656 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
0e9a44dc
JB		 657 src = ucode->u.v1.data;
658 break;
659 }
660
661 /* Verify size of file vs. image size info in file's header */
662 if (ucode_raw->size != hdr_size + pieces->inst_size +
663 pieces->data_size + pieces->init_size +
1fc35276 664 pieces->init_data_size) {
0e9a44dc
JB		 665
666 IWL_ERR(priv,
667 "uCode file size %d does not match expected size\n",
668 (int)ucode_raw->size);
669 return -EINVAL;
670 }
671
672 pieces->inst = src;
673 src += pieces->inst_size;
674 pieces->data = src;
675 src += pieces->data_size;
676 pieces->init = src;
677 src += pieces->init_size;
678 pieces->init_data = src;
679 src += pieces->init_data_size;
0e9a44dc
JB		 680
681 return 0;
682}
683
dd7a2509
JB		 684static int iwlagn_load_firmware(struct iwl_priv *priv,
685 const struct firmware *ucode_raw,
686 struct iwlagn_firmware_pieces *pieces,
687 struct iwlagn_ucode_capabilities *capa)
688{
689 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
690 struct iwl_ucode_tlv *tlv;
691 size_t len = ucode_raw->size;
692 const u8 *data;
48f20d35
EG		 693 int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
694 int tmp;
dd7a2509 695 u64 alternatives;
ad8d8333
WYG		 696 u32 tlv_len;
697 enum iwl_ucode_tlv_type tlv_type;
698 const u8 *tlv_data;
dd7a2509 699
ad8d8333
WYG		 700 if (len < sizeof(*ucode)) {
701 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
dd7a2509 702 return -EINVAL;
ad8d8333 703 }
dd7a2509 704
ad8d8333
WYG		 705 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
706 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
707 le32_to_cpu(ucode->magic));
dd7a2509 708 return -EINVAL;
ad8d8333 709 }
dd7a2509
JB		 710
711 /*
712 * Check which alternatives are present, and "downgrade"
713 * when the chosen alternative is not present, warning
714 * the user when that happens. Some files may not have
715 * any alternatives, so don't warn in that case.
716 */
717 alternatives = le64_to_cpu(ucode->alternatives);
718 tmp = wanted_alternative;
719 if (wanted_alternative > 63)
720 wanted_alternative = 63;
721 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
722 wanted_alternative--;
723 if (wanted_alternative && wanted_alternative != tmp)
724 IWL_WARN(priv,
725 "uCode alternative %d not available, choosing %d\n",
726 tmp, wanted_alternative);
727
728 priv->ucode_ver = le32_to_cpu(ucode->ver);
729 pieces->build = le32_to_cpu(ucode->build);
730 data = ucode->data;
731
732 len -= sizeof(*ucode);
733
704da534 734 while (len >= sizeof(*tlv)) {
dd7a2509 735 u16 tlv_alt;
dd7a2509
JB		 736
737 len -= sizeof(*tlv);
738 tlv = (void *)data;
739
740 tlv_len = le32_to_cpu(tlv->length);
741 tlv_type = le16_to_cpu(tlv->type);
742 tlv_alt = le16_to_cpu(tlv->alternative);
743 tlv_data = tlv->data;
744
ad8d8333
WYG		 745 if (len < tlv_len) {
746 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
747 len, tlv_len);
dd7a2509 748 return -EINVAL;
ad8d8333 749 }
dd7a2509
JB		 750 len -= ALIGN(tlv_len, 4);
751 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
752
753 /*
754 * Alternative 0 is always valid.
755 *
756 * Skip alternative TLVs that are not selected.
757 */
758 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
759 continue;
760
761 switch (tlv_type) {
762 case IWL_UCODE_TLV_INST:
763 pieces->inst = tlv_data;
764 pieces->inst_size = tlv_len;
765 break;
766 case IWL_UCODE_TLV_DATA:
767 pieces->data = tlv_data;
768 pieces->data_size = tlv_len;
769 break;
770 case IWL_UCODE_TLV_INIT:
771 pieces->init = tlv_data;
772 pieces->init_size = tlv_len;
773 break;
774 case IWL_UCODE_TLV_INIT_DATA:
775 pieces->init_data = tlv_data;
776 pieces->init_data_size = tlv_len;
777 break;
778 case IWL_UCODE_TLV_BOOT:
1fc35276 779 IWL_ERR(priv, "Found unexpected BOOT ucode\n");
dd7a2509
JB		 780 break;
781 case IWL_UCODE_TLV_PROBE_MAX_LEN:
704da534
JB		 782 if (tlv_len != sizeof(u32))
783 goto invalid_tlv_len;
784 capa->max_probe_length =
ad8d8333 785 le32_to_cpup((__le32 *)tlv_data);
dd7a2509 786 break;
ece9c4ee
JB		 787 case IWL_UCODE_TLV_PAN:
788 if (tlv_len)
789 goto invalid_tlv_len;
3997ff39
JB		 790 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
791 break;
792 case IWL_UCODE_TLV_FLAGS:
793 /* must be at least one u32 */
794 if (tlv_len < sizeof(u32))
795 goto invalid_tlv_len;
796 /* and a proper number of u32s */
797 if (tlv_len % sizeof(u32))
798 goto invalid_tlv_len;
799 /*
800 * This driver only reads the first u32 as
801 * right now no more features are defined,
802 * if that changes then either the driver
803 * will not work with the new firmware, or
804 * it'll not take advantage of new features.
805 */
806 capa->flags = le32_to_cpup((__le32 *)tlv_data);
ece9c4ee 807 break;
b2e640d4 808 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
704da534
JB		 809 if (tlv_len != sizeof(u32))
810 goto invalid_tlv_len;
811 pieces->init_evtlog_ptr =
ad8d8333 812 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 813 break;
814 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
704da534
JB		 815 if (tlv_len != sizeof(u32))
816 goto invalid_tlv_len;
817 pieces->init_evtlog_size =
ad8d8333 818 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 819 break;
820 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
704da534
JB		 821 if (tlv_len != sizeof(u32))
822 goto invalid_tlv_len;
823 pieces->init_errlog_ptr =
ad8d8333 824 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 825 break;
826 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
704da534
JB		 827 if (tlv_len != sizeof(u32))
828 goto invalid_tlv_len;
829 pieces->inst_evtlog_ptr =
ad8d8333 830 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 831 break;
832 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
704da534
JB		 833 if (tlv_len != sizeof(u32))
834 goto invalid_tlv_len;
835 pieces->inst_evtlog_size =
ad8d8333 836 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 837 break;
838 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
704da534
JB		 839 if (tlv_len != sizeof(u32))
840 goto invalid_tlv_len;
841 pieces->inst_errlog_ptr =
ad8d8333 842 le32_to_cpup((__le32 *)tlv_data);
b2e640d4 843 break;
c8312fac
WYG		 844 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
845 if (tlv_len)
704da534
JB		 846 goto invalid_tlv_len;
847 priv->enhance_sensitivity_table = true;
c8312fac 848 break;
c8ac61cf
JB		 849 case IWL_UCODE_TLV_WOWLAN_INST:
850 pieces->wowlan_inst = tlv_data;
851 pieces->wowlan_inst_size = tlv_len;
852 break;
853 case IWL_UCODE_TLV_WOWLAN_DATA:
854 pieces->wowlan_data = tlv_data;
855 pieces->wowlan_data_size = tlv_len;
856 break;
6a822d06 857 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
704da534
JB		 858 if (tlv_len != sizeof(u32))
859 goto invalid_tlv_len;
860 capa->standard_phy_calibration_size =
6a822d06
WYG		 861 le32_to_cpup((__le32 *)tlv_data);
862 break;
dd7a2509 863 default:
6fc3ba99 864 IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type);
dd7a2509
JB		 865 break;
866 }
867 }
868
ad8d8333
WYG		 869 if (len) {
870 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
871 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
704da534 872 return -EINVAL;
ad8d8333 873 }
dd7a2509 874
704da534
JB		 875 return 0;
876
877 invalid_tlv_len:
878 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
879 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
880
881 return -EINVAL;
dd7a2509
JB		 882}
883
b481de9c 884/**
b08dfd04 885 * iwl_ucode_callback - callback when firmware was loaded
b481de9c 886 *
b08dfd04
JB		 887 * If loaded successfully, copies the firmware into buffers
888 * for the card to fetch (via DMA).
b481de9c 889 */
b08dfd04 890static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
b481de9c 891{
b08dfd04 892 struct iwl_priv *priv = context;
cc0f555d 893 struct iwl_ucode_header *ucode;
0e9a44dc
JB		 894 int err;
895 struct iwlagn_firmware_pieces pieces;
a0987a8d 896 const unsigned int api_max = priv->cfg->ucode_api_max;
5d7969bf 897 unsigned int api_ok = priv->cfg->ucode_api_ok;
a0987a8d 898 const unsigned int api_min = priv->cfg->ucode_api_min;
0e9a44dc 899 u32 api_ver;
3e4de761 900 char buildstr[25];
0e9a44dc 901 u32 build;
dd7a2509
JB		 902 struct iwlagn_ucode_capabilities ucode_capa = {
903 .max_probe_length = 200,
6a822d06 904 .standard_phy_calibration_size =
642454cc 905 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
dd7a2509 906 };
0e9a44dc 907
5d7969bf
JB		 908 if (!api_ok)
909 api_ok = api_max;
910
0e9a44dc 911 memset(&pieces, 0, sizeof(pieces));
b481de9c 912
b08dfd04 913 if (!ucode_raw) {
5d7969bf 914 if (priv->fw_index <= api_ok)
39396085
JS		 915 IWL_ERR(priv,
916 "request for firmware file '%s' failed.\n",
917 priv->firmware_name);
b08dfd04 918 goto try_again;
b481de9c
ZY		 919 }
920
b08dfd04
JB		 921 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
922 priv->firmware_name, ucode_raw->size);
b481de9c 923
22adba2a
JB		 924 /* Make sure that we got at least the API version number */
925 if (ucode_raw->size < 4) {
15b1687c 926 IWL_ERR(priv, "File size way too small!\n");
b08dfd04 927 goto try_again;
b481de9c
ZY		 928 }
929
930 /* Data from ucode file: header followed by uCode images */
cc0f555d 931 ucode = (struct iwl_ucode_header *)ucode_raw->data;
b481de9c 932
0e9a44dc
JB		 933 if (ucode->ver)
934 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
935 else
dd7a2509
JB		 936 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
937 &ucode_capa);
22adba2a 938
0e9a44dc
JB		 939 if (err)
940 goto try_again;
b481de9c 941
a0987a8d 942 api_ver = IWL_UCODE_API(priv->ucode_ver);
0e9a44dc 943 build = pieces.build;
a0987a8d 944
0e9a44dc
JB		 945 /*
946 * api_ver should match the api version forming part of the
947 * firmware filename ... but we don't check for that and only rely
948 * on the API version read from firmware header from here on forward
949 */
65cccfb0
WYG		 950 /* no api version check required for experimental uCode */
951 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
952 if (api_ver < api_min || api_ver > api_max) {
953 IWL_ERR(priv,
954 "Driver unable to support your firmware API. "
955 "Driver supports v%u, firmware is v%u.\n",
956 api_max, api_ver);
957 goto try_again;
958 }
b08dfd04 959
5d7969bf
JB		 960 if (api_ver < api_ok) {
961 if (api_ok != api_max)
962 IWL_ERR(priv, "Firmware has old API version, "
963 "expected v%u through v%u, got v%u.\n",
964 api_ok, api_max, api_ver);
965 else
966 IWL_ERR(priv, "Firmware has old API version, "
967 "expected v%u, got v%u.\n",
968 api_max, api_ver);
969 IWL_ERR(priv, "New firmware can be obtained from "
970 "http://www.intellinuxwireless.org/.\n");
971 }
65cccfb0 972 }
a0987a8d 973
3e4de761 974 if (build)
39396085
JS		 975 sprintf(buildstr, " build %u%s", build,
976 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
977 ? " (EXP)" : "");
3e4de761
JB		 978 else
979 buildstr[0] = '\0';
980
981 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
982 IWL_UCODE_MAJOR(priv->ucode_ver),
983 IWL_UCODE_MINOR(priv->ucode_ver),
984 IWL_UCODE_API(priv->ucode_ver),
985 IWL_UCODE_SERIAL(priv->ucode_ver),
986 buildstr);
a0987a8d 987
5ebeb5a6
RC		 988 snprintf(priv->hw->wiphy->fw_version,
989 sizeof(priv->hw->wiphy->fw_version),
3e4de761 990 "%u.%u.%u.%u%s",
5ebeb5a6
RC		 991 IWL_UCODE_MAJOR(priv->ucode_ver),
992 IWL_UCODE_MINOR(priv->ucode_ver),
993 IWL_UCODE_API(priv->ucode_ver),
3e4de761
JB		 994 IWL_UCODE_SERIAL(priv->ucode_ver),
995 buildstr);
b481de9c 996
b08dfd04
JB		 997 /*
998 * For any of the failures below (before allocating pci memory)
999 * we will try to load a version with a smaller API -- maybe the
1000 * user just got a corrupted version of the latest API.
1001 */
1002
0e9a44dc
JB		 1003 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1004 priv->ucode_ver);
1005 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1006 pieces.inst_size);
1007 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1008 pieces.data_size);
1009 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1010 pieces.init_size);
1011 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1012 pieces.init_data_size);
b481de9c
ZY		 1013
1014 /* Verify that uCode images will fit in card's SRAM */
d6189124 1015 if (pieces.inst_size > hw_params(priv).max_inst_size) {
0e9a44dc
JB		 1016 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1017 pieces.inst_size);
b08dfd04 1018 goto try_again;
b481de9c
ZY		 1019 }
1020
d6189124 1021 if (pieces.data_size > hw_params(priv).max_data_size) {
0e9a44dc
JB		 1022 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1023 pieces.data_size);
b08dfd04 1024 goto try_again;
b481de9c 1025 }
0e9a44dc 1026
d6189124 1027 if (pieces.init_size > hw_params(priv).max_inst_size) {
0e9a44dc
JB		 1028 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1029 pieces.init_size);
b08dfd04 1030 goto try_again;
b481de9c 1031 }
0e9a44dc 1032
d6189124 1033 if (pieces.init_data_size > hw_params(priv).max_data_size) {
0e9a44dc
JB		 1034 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1035 pieces.init_data_size);
b08dfd04 1036 goto try_again;
b481de9c 1037 }
0e9a44dc 1038
b481de9c
ZY		 1039 /* Allocate ucode buffers for card's bus-master loading ... */
1040
1041 /* Runtime instructions and 2 copies of data:
1042 * 1) unmodified from disk
1043 * 2) backup cache for save/restore during power-downs */
3599d39a 1044 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code,
dbf28e21
JB		 1045 pieces.inst, pieces.inst_size))
1046 goto err_pci_alloc;
3599d39a 1047 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data,
dbf28e21 1048 pieces.data, pieces.data_size))
1f304e4e
ZY		 1049 goto err_pci_alloc;
1050
b481de9c 1051 /* Initialization instructions and data */
0e9a44dc 1052 if (pieces.init_size && pieces.init_data_size) {
3599d39a 1053 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code,
dbf28e21
JB		 1054 pieces.init, pieces.init_size))
1055 goto err_pci_alloc;
3599d39a 1056 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data,
dbf28e21 1057 pieces.init_data, pieces.init_data_size))
90e759d1
TW		 1058 goto err_pci_alloc;
1059 }
b481de9c 1060
c8ac61cf
JB		 1061 /* WoWLAN instructions and data */
1062 if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
1063 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code,
1064 pieces.wowlan_inst,
1065 pieces.wowlan_inst_size))
1066 goto err_pci_alloc;
1067 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data,
1068 pieces.wowlan_data,
1069 pieces.wowlan_data_size))
1070 goto err_pci_alloc;
1071 }
1072
b2e640d4
JB		 1073 /* Now that we can no longer fail, copy information */
1074
1075 /*
1076 * The (size - 16) / 12 formula is based on the information recorded
1077 * for each event, which is of mode 1 (including timestamp) for all
1078 * new microcodes that include this information.
1079 */
898ed67b 1080 priv->init_evtlog_ptr = pieces.init_evtlog_ptr;
b2e640d4 1081 if (pieces.init_evtlog_size)
898ed67b 1082 priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
b2e640d4 1083 else
898ed67b 1084 priv->init_evtlog_size =
7cb1b088 1085 priv->cfg->base_params->max_event_log_size;
898ed67b
WYG		 1086 priv->init_errlog_ptr = pieces.init_errlog_ptr;
1087 priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
b2e640d4 1088 if (pieces.inst_evtlog_size)
898ed67b 1089 priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
b2e640d4 1090 else
898ed67b 1091 priv->inst_evtlog_size =
7cb1b088 1092 priv->cfg->base_params->max_event_log_size;
898ed67b 1093 priv->inst_errlog_ptr = pieces.inst_errlog_ptr;
b2e640d4 1094
d2690c0d
JB		 1095 priv->new_scan_threshold_behaviour =
1096 !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1097
4d2a5d0e
JB		 1098 if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1099 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
c10afb6e 1100
c6baf7fb
JB		 1101 /*
1102 * if not PAN, then don't support P2P -- might be a uCode
1103 * packaging bug or due to the eeprom check above
1104 */
1105 if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN))
1106 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1107
4d2a5d0e
JB		 1108 if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
1109 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
cefeaa5f 1110 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
4d2a5d0e
JB		 1111 } else {
1112 priv->sta_key_max_num = STA_KEY_MAX_NUM;
cefeaa5f 1113 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
4d2a5d0e 1114 }
17445b8c 1115
6a822d06
WYG		 1116 /*
1117 * figure out the offset of chain noise reset and gain commands
1118 * base on the size of standard phy calibration commands table size
1119 */
1120 if (ucode_capa.standard_phy_calibration_size >
1121 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1122 ucode_capa.standard_phy_calibration_size =
1123 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1124
898ed67b 1125 priv->phy_calib_chain_noise_reset_cmd =
6a822d06 1126 ucode_capa.standard_phy_calibration_size;
898ed67b 1127 priv->phy_calib_chain_noise_gain_cmd =
6a822d06
WYG		 1128 ucode_capa.standard_phy_calibration_size + 1;
1129
4d2a5d0e
JB		 1130 /* initialize all valid contexts */
1131 iwl_init_context(priv, ucode_capa.flags);
1132
b08dfd04
JB		 1133 /**************************************************
1134 * This is still part of probe() in a sense...
1135 *
1136 * 9. Setup and register with mac80211 and debugfs
1137 **************************************************/
dd7a2509 1138 err = iwl_mac_setup_register(priv, &ucode_capa);
b08dfd04
JB		 1139 if (err)
1140 goto out_unbind;
1141
1142 err = iwl_dbgfs_register(priv, DRV_NAME);
1143 if (err)
1144 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1145
b481de9c
ZY		 1146 /* We have our copies now, allow OS release its copies */
1147 release_firmware(ucode_raw);
898ed67b 1148 complete(&priv->firmware_loading_complete);
b08dfd04
JB		 1149 return;
1150
1151 try_again:
1152 /* try next, if any */
1153 if (iwl_request_firmware(priv, false))
1154 goto out_unbind;
1155 release_firmware(ucode_raw);
1156 return;
b481de9c
ZY		 1157
1158 err_pci_alloc:
15b1687c 1159 IWL_ERR(priv, "failed to allocate pci memory\n");
3599d39a 1160 iwl_dealloc_ucode(priv);
b08dfd04 1161 out_unbind:
898ed67b 1162 complete(&priv->firmware_loading_complete);
d5934110 1163 device_release_driver(priv->bus->dev);
b481de9c 1164 release_firmware(ucode_raw);
b481de9c
ZY		 1165}
1166
0975cc8f
WYG		 1167static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1168{
1169 struct iwl_ct_kill_config cmd;
1170 struct iwl_ct_kill_throttling_config adv_cmd;
1171 unsigned long flags;
1172 int ret = 0;
1173
10b15e6f 1174 spin_lock_irqsave(&priv->shrd->lock, flags);
83ed9015 1175 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
0975cc8f 1176 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
10b15e6f 1177 spin_unlock_irqrestore(&priv->shrd->lock, flags);
0975cc8f
WYG		 1178 priv->thermal_throttle.ct_kill_toggle = false;
1179
7cb1b088 1180 if (priv->cfg->base_params->support_ct_kill_exit) {
0975cc8f 1181 adv_cmd.critical_temperature_enter =
d6189124 1182 cpu_to_le32(hw_params(priv).ct_kill_threshold);
0975cc8f 1183 adv_cmd.critical_temperature_exit =
d6189124 1184 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
0975cc8f 1185
e6bb4c9c 1186 ret = iwl_trans_send_cmd_pdu(trans(priv),
e419d62d
EG		 1187 REPLY_CT_KILL_CONFIG_CMD,
1188 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
0975cc8f
WYG		 1189 if (ret)
1190 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1191 else
1192 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
d6189124
EG		 1193 "succeeded, critical temperature enter is %d,"
1194 "exit is %d\n",
1195 hw_params(priv).ct_kill_threshold,
1196 hw_params(priv).ct_kill_exit_threshold);
0975cc8f
WYG		 1197 } else {
1198 cmd.critical_temperature_R =
d6189124 1199 cpu_to_le32(hw_params(priv).ct_kill_threshold);
0975cc8f 1200
e6bb4c9c 1201 ret = iwl_trans_send_cmd_pdu(trans(priv),
e419d62d
EG		 1202 REPLY_CT_KILL_CONFIG_CMD,
1203 CMD_SYNC, sizeof(cmd), &cmd);
0975cc8f
WYG		 1204 if (ret)
1205 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1206 else
1207 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
d6189124
EG		 1208 "succeeded, "
1209 "critical temperature is %d\n",
1210 hw_params(priv).ct_kill_threshold);
0975cc8f
WYG		 1211 }
1212}
1213
6d6a1afd
SZ		 1214static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
1215{
1216 struct iwl_calib_cfg_cmd calib_cfg_cmd;
1217 struct iwl_host_cmd cmd = {
1218 .id = CALIBRATION_CFG_CMD,
3fa50738
JB		 1219 .len = { sizeof(struct iwl_calib_cfg_cmd), },
1220 .data = { &calib_cfg_cmd, },
6d6a1afd
SZ		 1221 };
1222
1223 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
1224 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_INIT_CFG_ALL;
7cb1b088 1225 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
6d6a1afd 1226
e6bb4c9c 1227 return iwl_trans_send_cmd(trans(priv), &cmd);
6d6a1afd
SZ		 1228}
1229
1230
e505c433
WYG		 1231static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
1232{
1233 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
1234 .valid = cpu_to_le32(valid_tx_ant),
1235 };
1236
1237 if (IWL_UCODE_API(priv->ucode_ver) > 1) {
1238 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
e6bb4c9c 1239 return iwl_trans_send_cmd_pdu(trans(priv),
e505c433
WYG		 1240 TX_ANT_CONFIGURATION_CMD,
1241 CMD_SYNC,
1242 sizeof(struct iwl_tx_ant_config_cmd),
1243 &tx_ant_cmd);
1244 } else {
1245 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
1246 return -EOPNOTSUPP;
1247 }
1248}
1249
b481de9c 1250/**
4a4a9e81 1251 * iwl_alive_start - called after REPLY_ALIVE notification received
b481de9c 1252 * from protocol/runtime uCode (initialization uCode's
4a4a9e81 1253 * Alive gets handled by iwl_init_alive_start()).
b481de9c 1254 */
4613e72d 1255int iwl_alive_start(struct iwl_priv *priv)
b481de9c 1256{
57aab75a 1257 int ret = 0;
246ed355 1258 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
b481de9c 1259
1a361cd8 1260 /*TODO: this should go to the transport layer */
6bb78847 1261 iwl_reset_ict(trans(priv));
b481de9c 1262
ca7966c8 1263 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
6d6a1afd 1264
5b9f8cd3 1265 /* After the ALIVE response, we can send host commands to the uCode */
63013ae3 1266 set_bit(STATUS_ALIVE, &priv->shrd->status);
b481de9c 1267
22de94de
SG		 1268 /* Enable watchdog to monitor the driver tx queues */
1269 iwl_setup_watchdog(priv);
b74e31a9 1270
845a9c0d 1271 if (iwl_is_rfkill(priv->shrd))
ca7966c8 1272 return -ERFKILL;
b481de9c 1273
bc795df1 1274 /* download priority table before any calibration request */
7cb1b088
WYG		 1275 if (priv->cfg->bt_params &&
1276 priv->cfg->bt_params->advanced_bt_coexist) {
f7322f8f 1277 /* Configure Bluetooth device coexistence support */
207ecc5e
MV		 1278 if (priv->cfg->bt_params->bt_sco_disable)
1279 priv->bt_enable_pspoll = false;
1280 else
1281 priv->bt_enable_pspoll = true;
1282
f7322f8f
WYG		 1283 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1284 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1285 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
e55b517c 1286 iwlagn_send_advance_bt_config(priv);
f7322f8f 1287 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
207ecc5e
MV		 1288 priv->cur_rssi_ctx = NULL;
1289
a5901cbb 1290 iwlagn_send_prio_tbl(priv);
f7322f8f
WYG		 1291
1292 /* FIXME: w/a to force change uCode BT state machine */
ca7966c8
JB		 1293 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
1294 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1295 if (ret)
1296 return ret;
1297 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
1298 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1299 if (ret)
1300 return ret;
e55b517c
WYG		 1301 } else {
1302 /*
1303 * default is 2-wire BT coexexistence support
1304 */
1305 iwl_send_bt_config(priv);
f7322f8f 1306 }
e55b517c 1307
d6189124
EG		 1308 if (hw_params(priv).calib_rt_cfg)
1309 iwlagn_send_calib_cfg_rt(priv,
1310 hw_params(priv).calib_rt_cfg);
bc795df1 1311
36d6825b 1312 ieee80211_wake_queues(priv->hw);
b481de9c 1313
470ab2dd 1314 priv->active_rate = IWL_RATES_MASK;
b481de9c 1315
2f748dec 1316 /* Configure Tx antenna selection based on H/W config */
e3f10cea 1317 iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
2f748dec 1318
57210f7c 1319 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
c1adf9fb 1320 struct iwl_rxon_cmd *active_rxon =
246ed355 1321 (struct iwl_rxon_cmd *)&ctx->active;
019fb97d 1322 /* apply any changes in staging */
246ed355 1323 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
b481de9c
ZY		 1324 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1325 } else {
d0fe478c 1326 struct iwl_rxon_context *tmp;
b481de9c 1327 /* Initialize our rx_config data */
d0fe478c
JB		 1328 for_each_context(priv, tmp)
1329 iwl_connection_init_rx_config(priv, tmp);
45823531 1330
e3f10cea 1331 iwlagn_set_rxon_chain(priv, ctx);
b481de9c
ZY		 1332 }
1333
57210f7c 1334 if (!priv->shrd->wowlan) {
c8ac61cf
JB		 1335 /* WoWLAN ucode will not reply in the same way, skip it */
1336 iwl_reset_run_time_calib(priv);
1337 }
4a4a9e81 1338
63013ae3 1339 set_bit(STATUS_READY, &priv->shrd->status);
9e2e7422 1340
b481de9c 1341 /* Configure the adapter for unassociated operation */
805a3b81 1342 ret = iwlagn_commit_rxon(priv, ctx);
ca7966c8
JB		 1343 if (ret)
1344 return ret;
b481de9c
ZY		 1345
1346 /* At this point, the NIC is initialized and operational */
47f4a587 1347 iwl_rf_kill_ct_config(priv);
5a66926a 1348
e1623446 1349 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
c46fbefa 1350
ca7966c8 1351 return iwl_power_update_mode(priv, true);
b481de9c
ZY		 1352}
1353
4e39317d 1354static void iwl_cancel_deferred_work(struct iwl_priv *priv);
b481de9c 1355
5b9f8cd3 1356static void __iwl_down(struct iwl_priv *priv)
b481de9c 1357{
22dd2fd2 1358 int exit_pending;
b481de9c 1359
e1623446 1360 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
b481de9c 1361
d745d472
SG		 1362 iwl_scan_cancel_timeout(priv, 200);
1363
c6baf7fb
JB		 1364 /*
1365 * If active, scanning won't cancel it, so say it expired.
1366 * No race since we hold the mutex here and a new one
1367 * can't come in at this time.
1368 */
1369 ieee80211_remain_on_channel_expired(priv->hw);
1370
63013ae3
EG		 1371 exit_pending =
1372 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1373
b62177a0
SG		 1374 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1375 * to prevent rearm timer */
22de94de 1376 del_timer_sync(&priv->watchdog);
b62177a0 1377
dcef732c 1378 iwl_clear_ucode_stations(priv, NULL);
a194e324 1379 iwl_dealloc_bcast_stations(priv);
db125c78 1380 iwl_clear_driver_stations(priv);
b481de9c 1381
a1174138 1382 /* reset BT coex data */
da5dbb97 1383 priv->bt_status = 0;
207ecc5e
MV		 1384 priv->cur_rssi_ctx = NULL;
1385 priv->bt_is_sco = 0;
7cb1b088
WYG		 1386 if (priv->cfg->bt_params)
1387 priv->bt_traffic_load =
1388 priv->cfg->bt_params->bt_init_traffic_load;
1389 else
1390 priv->bt_traffic_load = 0;
bee008b7
WYG		 1391 priv->bt_full_concurrent = false;
1392 priv->bt_ci_compliance = 0;
a1174138 1393
b481de9c
ZY		 1394 /* Wipe out the EXIT_PENDING status bit if we are not actually
1395 * exiting the module */
1396 if (!exit_pending)
63013ae3 1397 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1398
859cfb0a 1399 if (priv->mac80211_registered)
b481de9c
ZY		 1400 ieee80211_stop_queues(priv->hw);
1401
909e9b23
EG		 1402 iwl_trans_stop_device(trans(priv));
1403
1a10f433 1404 /* Clear out all status bits but a few that are stable across reset */
63013ae3
EG		 1405 priv->shrd->status &=
1406 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
b481de9c 1407 STATUS_RF_KILL_HW |
63013ae3 1408 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
9788864e 1409 STATUS_GEO_CONFIGURED |
63013ae3 1410 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
052ec3f1 1411 STATUS_FW_ERROR |
63013ae3 1412 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
052ec3f1 1413 STATUS_EXIT_PENDING;
b481de9c 1414
77834543 1415 dev_kfree_skb(priv->beacon_skb);
12e934dc 1416 priv->beacon_skb = NULL;
b481de9c
ZY		 1417}
1418
5b9f8cd3 1419static void iwl_down(struct iwl_priv *priv)
b481de9c 1420{
6ac2f839 1421 mutex_lock(&priv->shrd->mutex);
5b9f8cd3 1422 __iwl_down(priv);
6ac2f839 1423 mutex_unlock(&priv->shrd->mutex);
b24d22b1 1424
4e39317d 1425 iwl_cancel_deferred_work(priv);
b481de9c
ZY		 1426}
1427
1428#define MAX_HW_RESTARTS 5
1429
5b9f8cd3 1430static int __iwl_up(struct iwl_priv *priv)
b481de9c 1431{
a194e324 1432 struct iwl_rxon_context *ctx;
57aab75a 1433 int ret;
b481de9c 1434
6ac2f839 1435 lockdep_assert_held(&priv->shrd->mutex);
ca7966c8 1436
63013ae3 1437 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
39aadf8c 1438 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
b481de9c
ZY		 1439 return -EIO;
1440 }
1441
a194e324 1442 for_each_context(priv, ctx) {
a30e3112 1443 ret = iwlagn_alloc_bcast_station(priv, ctx);
a194e324
JB		 1444 if (ret) {
1445 iwl_dealloc_bcast_stations(priv);
1446 return ret;
1447 }
1448 }
2c810ccd 1449
ca7966c8
JB		 1450 ret = iwlagn_run_init_ucode(priv);
1451 if (ret) {
1452 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
1453 goto error;
1454 }
b481de9c 1455
ca7966c8 1456 ret = iwlagn_load_ucode_wait_alive(priv,
dbf28e21 1457 &priv->ucode_rt,
872907bb 1458 IWL_UCODE_REGULAR);
ca7966c8
JB		 1459 if (ret) {
1460 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
1461 goto error;
b481de9c
ZY		 1462 }
1463
ca7966c8
JB		 1464 ret = iwl_alive_start(priv);
1465 if (ret)
1466 goto error;
1467 return 0;
1468
1469 error:
63013ae3 1470 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
5b9f8cd3 1471 __iwl_down(priv);
63013ae3 1472 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1473
ca7966c8
JB		 1474 IWL_ERR(priv, "Unable to initialize device.\n");
1475 return ret;
b481de9c
ZY		 1476}
1477
1478
1479/*****************************************************************************
1480 *
1481 * Workqueue callbacks
1482 *
1483 *****************************************************************************/
1484
16e727e8
EG		 1485static void iwl_bg_run_time_calib_work(struct work_struct *work)
1486{
1487 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1488 run_time_calib_work);
1489
6ac2f839 1490 mutex_lock(&priv->shrd->mutex);
16e727e8 1491
63013ae3
EG		 1492 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
1493 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
6ac2f839 1494 mutex_unlock(&priv->shrd->mutex);
16e727e8
EG		 1495 return;
1496 }
1497
1498 if (priv->start_calib) {
0da0e5bf
JB		 1499 iwl_chain_noise_calibration(priv);
1500 iwl_sensitivity_calibration(priv);
16e727e8
EG		 1501 }
1502
6ac2f839 1503 mutex_unlock(&priv->shrd->mutex);
16e727e8
EG		 1504}
1505
e43e85c4
JB		 1506static void iwlagn_prepare_restart(struct iwl_priv *priv)
1507{
1508 struct iwl_rxon_context *ctx;
1509 bool bt_full_concurrent;
1510 u8 bt_ci_compliance;
1511 u8 bt_load;
1512 u8 bt_status;
207ecc5e 1513 bool bt_is_sco;
e43e85c4 1514
6ac2f839 1515 lockdep_assert_held(&priv->shrd->mutex);
e43e85c4
JB		 1516
1517 for_each_context(priv, ctx)
1518 ctx->vif = NULL;
1519 priv->is_open = 0;
1520
1521 /*
1522 * __iwl_down() will clear the BT status variables,
1523 * which is correct, but when we restart we really
1524 * want to keep them so restore them afterwards.
1525 *
1526 * The restart process will later pick them up and
1527 * re-configure the hw when we reconfigure the BT
1528 * command.
1529 */
1530 bt_full_concurrent = priv->bt_full_concurrent;
1531 bt_ci_compliance = priv->bt_ci_compliance;
1532 bt_load = priv->bt_traffic_load;
1533 bt_status = priv->bt_status;
207ecc5e 1534 bt_is_sco = priv->bt_is_sco;
e43e85c4
JB		 1535
1536 __iwl_down(priv);
1537
1538 priv->bt_full_concurrent = bt_full_concurrent;
1539 priv->bt_ci_compliance = bt_ci_compliance;
1540 priv->bt_traffic_load = bt_load;
1541 priv->bt_status = bt_status;
207ecc5e 1542 priv->bt_is_sco = bt_is_sco;
e43e85c4
JB		 1543}
1544
5b9f8cd3 1545static void iwl_bg_restart(struct work_struct *data)
b481de9c 1546{
c79dd5b5 1547 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
b481de9c 1548
63013ae3 1549 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
b481de9c
ZY		 1550 return;
1551
63013ae3 1552 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
6ac2f839 1553 mutex_lock(&priv->shrd->mutex);
e43e85c4 1554 iwlagn_prepare_restart(priv);
6ac2f839 1555 mutex_unlock(&priv->shrd->mutex);
a1174138 1556 iwl_cancel_deferred_work(priv);
19cc1087
JB		 1557 ieee80211_restart_hw(priv->hw);
1558 } else {
ca7966c8 1559 WARN_ON(1);
19cc1087 1560 }
b481de9c
ZY		 1561}
1562
b481de9c
ZY		 1563/*****************************************************************************
1564 *
1565 * mac80211 entry point functions
1566 *
1567 *****************************************************************************/
1568
0fd09502
JB		 1569static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
1570 {
1571 .max = 1,
1572 .types = BIT(NL80211_IFTYPE_STATION),
1573 },
1574 {
1575 .max = 1,
1576 .types = BIT(NL80211_IFTYPE_AP),
1577 },
1578};
1579
1580static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
1581 {
1582 .max = 2,
1583 .types = BIT(NL80211_IFTYPE_STATION),
1584 },
1585};
1586
1587static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
1588 {
1589 .max = 1,
1590 .types = BIT(NL80211_IFTYPE_STATION),
1591 },
1592 {
1593 .max = 1,
1594 .types = BIT(NL80211_IFTYPE_P2P_GO) |
1595 BIT(NL80211_IFTYPE_AP),
1596 },
1597};
1598
1599static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
1600 {
1601 .max = 2,
1602 .types = BIT(NL80211_IFTYPE_STATION),
1603 },
1604 {
1605 .max = 1,
1606 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
1607 },
1608};
1609
1610static const struct ieee80211_iface_combination
1611iwlagn_iface_combinations_dualmode[] = {
1612 { .num_different_channels = 1,
1613 .max_interfaces = 2,
1614 .beacon_int_infra_match = true,
1615 .limits = iwlagn_sta_ap_limits,
1616 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
1617 },
1618 { .num_different_channels = 1,
1619 .max_interfaces = 2,
1620 .limits = iwlagn_2sta_limits,
1621 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
1622 },
1623};
1624
1625static const struct ieee80211_iface_combination
1626iwlagn_iface_combinations_p2p[] = {
1627 { .num_different_channels = 1,
1628 .max_interfaces = 2,
1629 .beacon_int_infra_match = true,
1630 .limits = iwlagn_p2p_sta_go_limits,
1631 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
1632 },
1633 { .num_different_channels = 1,
1634 .max_interfaces = 2,
1635 .limits = iwlagn_p2p_2sta_limits,
1636 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
1637 },
1638};
1639
f0b6e2e8
RC		 1640/*
1641 * Not a mac80211 entry point function, but it fits in with all the
1642 * other mac80211 functions grouped here.
1643 */
dd7a2509
JB		 1644static int iwl_mac_setup_register(struct iwl_priv *priv,
1645 struct iwlagn_ucode_capabilities *capa)
f0b6e2e8
RC		 1646{
1647 int ret;
1648 struct ieee80211_hw *hw = priv->hw;
d0fe478c
JB		 1649 struct iwl_rxon_context *ctx;
1650
f0b6e2e8
RC		 1651 hw->rate_control_algorithm = "iwl-agn-rs";
1652
1653 /* Tell mac80211 our characteristics */
1654 hw->flags = IEEE80211_HW_SIGNAL_DBM |
f0b6e2e8 1655 IEEE80211_HW_AMPDU_AGGREGATION |
2491fa42 1656 IEEE80211_HW_NEED_DTIM_PERIOD |
6fb5511a
JB		 1657 IEEE80211_HW_SPECTRUM_MGMT |
1658 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
f0b6e2e8 1659
2249b011
DF		 1660 /*
1661 * Including the following line will crash some AP's. This
1662 * workaround removes the stimulus which causes the crash until
1663 * the AP software can be fixed.
9b768832 1664 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2249b011 1665 */
9b768832 1666
23c0fcc6
WYG		 1667 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
1668 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
f0b6e2e8 1669
88950758 1670 if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
ba37a3d0
JB		 1671 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1672 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
1673
3997ff39
JB		 1674 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
1675 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
1676
8d9698b3 1677 hw->sta_data_size = sizeof(struct iwl_station_priv);
fd1af15d
JB		 1678 hw->vif_data_size = sizeof(struct iwl_vif_priv);
1679
d0fe478c
JB		 1680 for_each_context(priv, ctx) {
1681 hw->wiphy->interface_modes |= ctx->interface_modes;
1682 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
1683 }
f0b6e2e8 1684
0fd09502
JB		 1685 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1686
f35490f9 1687 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
0fd09502
JB		 1688 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
1689 hw->wiphy->n_iface_combinations =
1690 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
f35490f9 1691 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
0fd09502
JB		 1692 hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode;
1693 hw->wiphy->n_iface_combinations =
1694 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
1695 }
1696
9b9190d9
JB		 1697 hw->wiphy->max_remain_on_channel_duration = 1000;
1698
f6c8f152 1699 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
274102a8
JB		 1700 WIPHY_FLAG_DISABLE_BEACON_HINTS |
1701 WIPHY_FLAG_IBSS_RSN;
f0b6e2e8 1702
c8ac61cf
JB		 1703 if (priv->ucode_wowlan.code.len && device_can_wakeup(priv->bus->dev)) {
1704 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
1705 WIPHY_WOWLAN_DISCONNECT |
1706 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
1707 WIPHY_WOWLAN_RFKILL_RELEASE;
1708 if (!iwlagn_mod_params.sw_crypto)
1709 hw->wiphy->wowlan.flags |=
1710 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
1711 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
1712
1713 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
1714 hw->wiphy->wowlan.pattern_min_len =
1715 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
1716 hw->wiphy->wowlan.pattern_max_len =
1717 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
1718 }
1719
0172b029
WYG		 1720 if (iwlagn_mod_params.power_save)
1721 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
1722 else
1723 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
f0b6e2e8 1724
1382c71c 1725 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
f0b6e2e8 1726 /* we create the 802.11 header and a zero-length SSID element */
dd7a2509 1727 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
f0b6e2e8
RC		 1728
1729 /* Default value; 4 EDCA QOS priorities */
1730 hw->queues = 4;
1731
1732 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1733
1734 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1735 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1736 &priv->bands[IEEE80211_BAND_2GHZ];
1737 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1738 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1739 &priv->bands[IEEE80211_BAND_5GHZ];
1740
5ed540ae
WYG		 1741 iwl_leds_init(priv);
1742
f0b6e2e8
RC		 1743 ret = ieee80211_register_hw(priv->hw);
1744 if (ret) {
1745 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1746 return ret;
1747 }
859cfb0a 1748 priv->mac80211_registered = 1;
f0b6e2e8
RC		 1749
1750 return 0;
1751}
1752
1753
2dedbf58 1754static int iwlagn_mac_start(struct ieee80211_hw *hw)
b481de9c 1755{
c79dd5b5 1756 struct iwl_priv *priv = hw->priv;
5a66926a 1757 int ret;
b481de9c 1758
e1623446 1759 IWL_DEBUG_MAC80211(priv, "enter\n");
b481de9c
ZY		 1760
1761 /* we should be verifying the device is ready to be opened */
6ac2f839 1762 mutex_lock(&priv->shrd->mutex);
5b9f8cd3 1763 ret = __iwl_up(priv);
6ac2f839 1764 mutex_unlock(&priv->shrd->mutex);
e655b9f0 1765 if (ret)
6cd0b1cb 1766 return ret;
e655b9f0 1767
e1623446 1768 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
e655b9f0 1769
ca7966c8 1770 /* Now we should be done, and the READY bit should be set. */
63013ae3 1771 if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
ca7966c8 1772 ret = -EIO;
0a078ffa 1773
5ed540ae 1774 iwlagn_led_enable(priv);
e932a609 1775
0a078ffa 1776 priv->is_open = 1;
e1623446 1777 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c
ZY		 1778 return 0;
1779}
1780
2dedbf58 1781static void iwlagn_mac_stop(struct ieee80211_hw *hw)
b481de9c 1782{
c79dd5b5 1783 struct iwl_priv *priv = hw->priv;
b481de9c 1784
e1623446 1785 IWL_DEBUG_MAC80211(priv, "enter\n");
948c171c 1786
19cc1087 1787 if (!priv->is_open)
e655b9f0 1788 return;
e655b9f0 1789
b481de9c 1790 priv->is_open = 0;
5a66926a 1791
5b9f8cd3 1792 iwl_down(priv);
5a66926a 1793
74e28e44 1794 flush_workqueue(priv->shrd->workqueue);
6cd0b1cb 1795
554d1d02
SG		 1796 /* User space software may expect getting rfkill changes
1797 * even if interface is down */
83ed9015 1798 iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
554d1d02 1799 iwl_enable_rfkill_int(priv);
948c171c 1800
e1623446 1801 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c
ZY		 1802}
1803
c01a4047 1804#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 1805static int iwlagn_send_patterns(struct iwl_priv *priv,
1806 struct cfg80211_wowlan *wowlan)
1807{
1808 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1809 struct iwl_host_cmd cmd = {
1810 .id = REPLY_WOWLAN_PATTERNS,
1811 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1812 .flags = CMD_SYNC,
1813 };
1814 int i, err;
1815
1816 if (!wowlan->n_patterns)
1817 return 0;
1818
1819 cmd.len[0] = sizeof(*pattern_cmd) +
1820 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1821
1822 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1823 if (!pattern_cmd)
1824 return -ENOMEM;
1825
1826 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1827
1828 for (i = 0; i < wowlan->n_patterns; i++) {
1829 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1830
1831 memcpy(&pattern_cmd->patterns[i].mask,
1832 wowlan->patterns[i].mask, mask_len);
1833 memcpy(&pattern_cmd->patterns[i].pattern,
1834 wowlan->patterns[i].pattern,
1835 wowlan->patterns[i].pattern_len);
1836 pattern_cmd->patterns[i].mask_size = mask_len;
1837 pattern_cmd->patterns[i].pattern_size =
1838 wowlan->patterns[i].pattern_len;
1839 }
1840
1841 cmd.data[0] = pattern_cmd;
e6bb4c9c 1842 err = iwl_trans_send_cmd(trans(priv), &cmd);
c8ac61cf
JB		 1843 kfree(pattern_cmd);
1844 return err;
1845}
26293133 1846#endif
c8ac61cf
JB		 1847
1848static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
1849 struct ieee80211_vif *vif,
1850 struct cfg80211_gtk_rekey_data *data)
1851{
1852 struct iwl_priv *priv = hw->priv;
1853
1854 if (iwlagn_mod_params.sw_crypto)
1855 return;
1856
6ac2f839 1857 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 1858
1859 if (priv->contexts[IWL_RXON_CTX_BSS].vif != vif)
1860 goto out;
1861
1862 memcpy(priv->kek, data->kek, NL80211_KEK_LEN);
1863 memcpy(priv->kck, data->kck, NL80211_KCK_LEN);
1864 priv->replay_ctr = cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
1865 priv->have_rekey_data = true;
1866
1867 out:
6ac2f839 1868 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 1869}
1870
1871struct wowlan_key_data {
1872 struct iwl_rxon_context *ctx;
1873 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
1874 struct iwlagn_wowlan_tkip_params_cmd *tkip;
1875 const u8 *bssid;
1876 bool error, use_rsc_tsc, use_tkip;
1877};
1878
c01a4047 1879#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 1880static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
1881{
1882 int i;
1883
1884 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
1885 out[i] = cpu_to_le16(p1k[i]);
1886}
1887
1888static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
1889 struct ieee80211_vif *vif,
1890 struct ieee80211_sta *sta,
1891 struct ieee80211_key_conf *key,
1892 void *_data)
1893{
1894 struct iwl_priv *priv = hw->priv;
1895 struct wowlan_key_data *data = _data;
1896 struct iwl_rxon_context *ctx = data->ctx;
1897 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
1898 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
1899 struct iwlagn_p1k_cache *rx_p1ks;
1900 u8 *rx_mic_key;
1901 struct ieee80211_key_seq seq;
1902 u32 cur_rx_iv32 = 0;
1903 u16 p1k[IWLAGN_P1K_SIZE];
1904 int ret, i;
1905
6ac2f839 1906 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 1907
1908 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
1909 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
1910 !sta && !ctx->key_mapping_keys)
1911 ret = iwl_set_default_wep_key(priv, ctx, key);
1912 else
1913 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
1914
1915 if (ret) {
1916 IWL_ERR(priv, "Error setting key during suspend!\n");
1917 data->error = true;
1918 }
1919
1920 switch (key->cipher) {
1921 case WLAN_CIPHER_SUITE_TKIP:
1922 if (sta) {
1923 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
1924 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
1925
1926 rx_p1ks = data->tkip->rx_uni;
1927
1928 ieee80211_get_key_tx_seq(key, &seq);
1929 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
1930 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
1931
1932 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
1933 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
1934
1935 memcpy(data->tkip->mic_keys.tx,
1936 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
1937 IWLAGN_MIC_KEY_SIZE);
1938
1939 rx_mic_key = data->tkip->mic_keys.rx_unicast;
1940 } else {
1941 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
1942 rx_p1ks = data->tkip->rx_multi;
1943 rx_mic_key = data->tkip->mic_keys.rx_mcast;
1944 }
1945
1946 /*
1947 * For non-QoS this relies on the fact that both the uCode and
1948 * mac80211 use TID 0 (as they need to to avoid replay attacks)
1949 * for checking the IV in the frames.
1950 */
1951 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1952 ieee80211_get_key_rx_seq(key, i, &seq);
1953 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
1954 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
1955 /* wrapping isn't allowed, AP must rekey */
1956 if (seq.tkip.iv32 > cur_rx_iv32)
1957 cur_rx_iv32 = seq.tkip.iv32;
1958 }
1959
1960 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
1961 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
1962 ieee80211_get_tkip_rx_p1k(key, data->bssid,
1963 cur_rx_iv32 + 1, p1k);
1964 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
1965
1966 memcpy(rx_mic_key,
1967 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
1968 IWLAGN_MIC_KEY_SIZE);
1969
1970 data->use_tkip = true;
1971 data->use_rsc_tsc = true;
1972 break;
1973 case WLAN_CIPHER_SUITE_CCMP:
1974 if (sta) {
1975 u8 *pn = seq.ccmp.pn;
1976
1977 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
1978 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
1979
1980 ieee80211_get_key_tx_seq(key, &seq);
1981 aes_tx_sc->pn = cpu_to_le64(
1982 (u64)pn[5] |
1983 ((u64)pn[4] << 8) |
1984 ((u64)pn[3] << 16) |
1985 ((u64)pn[2] << 24) |
1986 ((u64)pn[1] << 32) |
1987 ((u64)pn[0] << 40));
1988 } else
1989 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
1990
1991 /*
1992 * For non-QoS this relies on the fact that both the uCode and
1993 * mac80211 use TID 0 for checking the IV in the frames.
1994 */
1995 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1996 u8 *pn = seq.ccmp.pn;
1997
1998 ieee80211_get_key_rx_seq(key, i, &seq);
1999 aes_sc->pn = cpu_to_le64(
2000 (u64)pn[5] |
2001 ((u64)pn[4] << 8) |
2002 ((u64)pn[3] << 16) |
2003 ((u64)pn[2] << 24) |
2004 ((u64)pn[1] << 32) |
2005 ((u64)pn[0] << 40));
2006 }
2007 data->use_rsc_tsc = true;
2008 break;
2009 }
2010
6ac2f839 2011 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2012}
2013
2014static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
2015 struct cfg80211_wowlan *wowlan)
2016{
2017 struct iwl_priv *priv = hw->priv;
2018 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
2019 struct iwl_rxon_cmd rxon;
2020 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2021 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
2022 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
2023 struct wowlan_key_data key_data = {
2024 .ctx = ctx,
2025 .bssid = ctx->active.bssid_addr,
2026 .use_rsc_tsc = false,
2027 .tkip = &tkip_cmd,
2028 .use_tkip = false,
2029 };
2030 int ret, i;
2031 u16 seq;
2032
2033 if (WARN_ON(!wowlan))
2034 return -EINVAL;
2035
6ac2f839 2036 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 2037
2038 /* Don't attempt WoWLAN when not associated, tear down instead. */
2039 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
2040 !iwl_is_associated_ctx(ctx)) {
2041 ret = 1;
2042 goto out;
2043 }
2044
2045 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
2046 if (!key_data.rsc_tsc) {
2047 ret = -ENOMEM;
2048 goto out;
2049 }
2050
2051 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
2052
2053 /*
2054 * We know the last used seqno, and the uCode expects to know that
2055 * one, it will increment before TX.
2056 */
2057 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
2058 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
2059
2060 /*
2061 * For QoS counters, we store the one to use next, so subtract 0x10
2062 * since the uCode will add 0x10 before using the value.
2063 */
2064 for (i = 0; i < 8; i++) {
5f85a789 2065 seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
c8ac61cf
JB		 2066 seq -= 0x10;
2067 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
2068 }
2069
2070 if (wowlan->disconnect)
2071 wakeup_filter_cmd.enabled |=
2072 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
2073 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
2074 if (wowlan->magic_pkt)
2075 wakeup_filter_cmd.enabled |=
2076 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
2077 if (wowlan->gtk_rekey_failure)
2078 wakeup_filter_cmd.enabled |=
2079 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
2080 if (wowlan->eap_identity_req)
2081 wakeup_filter_cmd.enabled |=
2082 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
2083 if (wowlan->four_way_handshake)
2084 wakeup_filter_cmd.enabled |=
2085 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
2086 if (wowlan->rfkill_release)
2087 wakeup_filter_cmd.enabled |=
2088 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL);
2089 if (wowlan->n_patterns)
2090 wakeup_filter_cmd.enabled |=
2091 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
2092
2093 iwl_scan_cancel_timeout(priv, 200);
2094
2095 memcpy(&rxon, &ctx->active, sizeof(rxon));
2096
e6bb4c9c 2097 iwl_trans_stop_device(trans(priv));
c8ac61cf 2098
57210f7c 2099 priv->shrd->wowlan = true;
c8ac61cf
JB		 2100
2101 ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan,
2102 IWL_UCODE_WOWLAN);
2103 if (ret)
2104 goto error;
2105
2106 /* now configure WoWLAN ucode */
2107 ret = iwl_alive_start(priv);
2108 if (ret)
2109 goto error;
2110
2111 memcpy(&ctx->staging, &rxon, sizeof(rxon));
2112 ret = iwlagn_commit_rxon(priv, ctx);
2113 if (ret)
2114 goto error;
2115
2116 ret = iwl_power_update_mode(priv, true);
2117 if (ret)
2118 goto error;
2119
2120 if (!iwlagn_mod_params.sw_crypto) {
2121 /* mark all keys clear */
2122 priv->ucode_key_table = 0;
2123 ctx->key_mapping_keys = 0;
2124
2125 /*
2126 * This needs to be unlocked due to lock ordering
2127 * constraints. Since we're in the suspend path
2128 * that isn't really a problem though.
2129 */
6ac2f839 2130 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2131 ieee80211_iter_keys(priv->hw, ctx->vif,
2132 iwlagn_wowlan_program_keys,
2133 &key_data);
6ac2f839 2134 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 2135 if (key_data.error) {
2136 ret = -EIO;
2137 goto error;
2138 }
2139
2140 if (key_data.use_rsc_tsc) {
2141 struct iwl_host_cmd rsc_tsc_cmd = {
2142 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
2143 .flags = CMD_SYNC,
2144 .data[0] = key_data.rsc_tsc,
2145 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2146 .len[0] = sizeof(*key_data.rsc_tsc),
2147 };
2148
e6bb4c9c 2149 ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd);
c8ac61cf
JB		 2150 if (ret)
2151 goto error;
2152 }
2153
2154 if (key_data.use_tkip) {
e6bb4c9c 2155 ret = iwl_trans_send_cmd_pdu(trans(priv),
c8ac61cf
JB		 2156 REPLY_WOWLAN_TKIP_PARAMS,
2157 CMD_SYNC, sizeof(tkip_cmd),
2158 &tkip_cmd);
2159 if (ret)
2160 goto error;
2161 }
2162
2163 if (priv->have_rekey_data) {
2164 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
2165 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
2166 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
2167 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
2168 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
2169 kek_kck_cmd.replay_ctr = priv->replay_ctr;
2170
e6bb4c9c 2171 ret = iwl_trans_send_cmd_pdu(trans(priv),
c8ac61cf
JB		 2172 REPLY_WOWLAN_KEK_KCK_MATERIAL,
2173 CMD_SYNC, sizeof(kek_kck_cmd),
2174 &kek_kck_cmd);
2175 if (ret)
2176 goto error;
2177 }
2178 }
2179
e6bb4c9c 2180 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER,
c8ac61cf
JB		 2181 CMD_SYNC, sizeof(wakeup_filter_cmd),
2182 &wakeup_filter_cmd);
2183 if (ret)
2184 goto error;
2185
2186 ret = iwlagn_send_patterns(priv, wowlan);
2187 if (ret)
2188 goto error;
2189
2190 device_set_wakeup_enable(priv->bus->dev, true);
2191
2192 /* Now let the ucode operate on its own */
83ed9015 2193 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
c8ac61cf
JB		 2194 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2195
2196 goto out;
2197
2198 error:
57210f7c 2199 priv->shrd->wowlan = false;
c8ac61cf
JB		 2200 iwlagn_prepare_restart(priv);
2201 ieee80211_restart_hw(priv->hw);
2202 out:
6ac2f839 2203 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2204 kfree(key_data.rsc_tsc);
2205 return ret;
2206}
2207
2208static int iwlagn_mac_resume(struct ieee80211_hw *hw)
2209{
2210 struct iwl_priv *priv = hw->priv;
2211 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2212 struct ieee80211_vif *vif;
2213 unsigned long flags;
2214 u32 base, status = 0xffffffff;
2215 int ret = -EIO;
2216
6ac2f839 2217 mutex_lock(&priv->shrd->mutex);
c8ac61cf 2218
83ed9015 2219 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
c8ac61cf
JB		 2220 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2221
2222 base = priv->device_pointers.error_event_table;
2223 if (iwlagn_hw_valid_rtc_data_addr(base)) {
83ed9015
EG		 2224 spin_lock_irqsave(&bus(priv)->reg_lock, flags);
2225 ret = iwl_grab_nic_access_silent(bus(priv));
c8ac61cf 2226 if (ret == 0) {
83ed9015
EG		 2227 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
2228 status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
2229 iwl_release_nic_access(bus(priv));
c8ac61cf 2230 }
83ed9015 2231 spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
c8ac61cf
JB		 2232
2233#ifdef CONFIG_IWLWIFI_DEBUGFS
2234 if (ret == 0) {
2235 if (!priv->wowlan_sram)
2236 priv->wowlan_sram =
2237 kzalloc(priv->ucode_wowlan.data.len,
2238 GFP_KERNEL);
2239
2240 if (priv->wowlan_sram)
2241 _iwl_read_targ_mem_words(
83ed9015 2242 bus(priv), 0x800000, priv->wowlan_sram,
c8ac61cf
JB		 2243 priv->ucode_wowlan.data.len / 4);
2244 }
2245#endif
2246 }
2247
2248 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2249 vif = ctx->vif;
2250
57210f7c 2251 priv->shrd->wowlan = false;
c8ac61cf
JB		 2252
2253 device_set_wakeup_enable(priv->bus->dev, false);
2254
2255 iwlagn_prepare_restart(priv);
2256
2257 memset((void *)&ctx->active, 0, sizeof(ctx->active));
2258 iwl_connection_init_rx_config(priv, ctx);
2259 iwlagn_set_rxon_chain(priv, ctx);
2260
6ac2f839 2261 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2262
2263 ieee80211_resume_disconnect(vif);
2264
2265 return 1;
2266}
26293133 2267#endif
c8ac61cf 2268
2dedbf58 2269static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
b481de9c 2270{
c79dd5b5 2271 struct iwl_priv *priv = hw->priv;
b481de9c 2272
e1623446 2273 IWL_DEBUG_MACDUMP(priv, "enter\n");
b481de9c 2274
e1623446 2275 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
e039fa4a 2276 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
b481de9c 2277
74bcdb33 2278 if (iwlagn_tx_skb(priv, skb))
b481de9c
ZY		 2279 dev_kfree_skb_any(skb);
2280
e1623446 2281 IWL_DEBUG_MACDUMP(priv, "leave\n");
b481de9c
ZY		 2282}
2283
2dedbf58
JB		 2284static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
2285 struct ieee80211_vif *vif,
2286 struct ieee80211_key_conf *keyconf,
2287 struct ieee80211_sta *sta,
2288 u32 iv32, u16 *phase1key)
ab885f8c 2289{
9f58671e 2290 struct iwl_priv *priv = hw->priv;
ab885f8c 2291
5a3d9882 2292 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
ab885f8c
EG		 2293}
2294
2dedbf58
JB		 2295static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2296 struct ieee80211_vif *vif,
2297 struct ieee80211_sta *sta,
2298 struct ieee80211_key_conf *key)
b481de9c 2299{
c79dd5b5 2300 struct iwl_priv *priv = hw->priv;
a194e324 2301 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
c10afb6e 2302 struct iwl_rxon_context *ctx = vif_priv->ctx;
42986796 2303 int ret;
42986796 2304 bool is_default_wep_key = false;
b481de9c 2305
e1623446 2306 IWL_DEBUG_MAC80211(priv, "enter\n");
b481de9c 2307
9d143e9a 2308 if (iwlagn_mod_params.sw_crypto) {
e1623446 2309 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
b481de9c
ZY		 2310 return -EOPNOTSUPP;
2311 }
b481de9c 2312
274102a8 2313 /*
5a3d9882
JB		 2314 * We could program these keys into the hardware as well, but we
2315 * don't expect much multicast traffic in IBSS and having keys
2316 * for more stations is probably more useful.
2317 *
2318 * Mark key TX-only and return 0.
274102a8
JB		 2319 */
2320 if (vif->type == NL80211_IFTYPE_ADHOC &&
5a3d9882
JB		 2321 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
2322 key->hw_key_idx = WEP_INVALID_OFFSET;
2323 return 0;
2324 }
274102a8 2325
5a3d9882
JB		 2326 /* If they key was TX-only, accept deletion */
2327 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
2328 return 0;
b481de9c 2329
6ac2f839 2330 mutex_lock(&priv->shrd->mutex);
2a421b91 2331 iwl_scan_cancel_timeout(priv, 100);
6974e363 2332
5a3d9882
JB		 2333 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
2334
a90178fa
JB		 2335 /*
2336 * If we are getting WEP group key and we didn't receive any key mapping
6974e363
EG		 2337 * so far, we are in legacy wep mode (group key only), otherwise we are
2338 * in 1X mode.
a90178fa
JB		 2339 * In legacy wep mode, we use another host command to the uCode.
2340 */
97359d12 2341 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
5a3d9882 2342 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
6974e363 2343 if (cmd == SET_KEY)
c10afb6e 2344 is_default_wep_key = !ctx->key_mapping_keys;
6974e363 2345 else
ccc038ab 2346 is_default_wep_key =
5a3d9882 2347 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
6974e363 2348 }
052c4b9f 2349
5a3d9882 2350
b481de9c 2351 switch (cmd) {
deb09c43 2352 case SET_KEY:
5a3d9882 2353 if (is_default_wep_key) {
2995bafa 2354 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
5a3d9882
JB		 2355 break;
2356 }
2357 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
2358 if (ret) {
2359 /*
2360 * can't add key for RX, but we don't need it
2361 * in the device for TX so still return 0
2362 */
2363 ret = 0;
2364 key->hw_key_idx = WEP_INVALID_OFFSET;
2365 }
deb09c43 2366
e1623446 2367 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
b481de9c
ZY		 2368 break;
2369 case DISABLE_KEY:
6974e363 2370 if (is_default_wep_key)
c10afb6e 2371 ret = iwl_remove_default_wep_key(priv, ctx, key);
deb09c43 2372 else
5a3d9882 2373 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
deb09c43 2374
e1623446 2375 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
b481de9c
ZY		 2376 break;
2377 default:
deb09c43 2378 ret = -EINVAL;
b481de9c
ZY		 2379 }
2380
6ac2f839 2381 mutex_unlock(&priv->shrd->mutex);
e1623446 2382 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c 2383
deb09c43 2384 return ret;
b481de9c
ZY		 2385}
2386
2dedbf58
JB		 2387static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
2388 struct ieee80211_vif *vif,
2389 enum ieee80211_ampdu_mlme_action action,
2390 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
2391 u8 buf_size)
d783b061
TW		 2392{
2393 struct iwl_priv *priv = hw->priv;
4620fefa 2394 int ret = -EINVAL;
7b090687 2395 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
ba562f71 2396 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
d783b061 2397
e1623446 2398 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
e174961c 2399 sta->addr, tid);
d783b061 2400
88950758 2401 if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
d783b061
TW		 2402 return -EACCES;
2403
6ac2f839 2404 mutex_lock(&priv->shrd->mutex);
4620fefa 2405
d783b061
TW		 2406 switch (action) {
2407 case IEEE80211_AMPDU_RX_START:
e1623446 2408 IWL_DEBUG_HT(priv, "start Rx\n");
4620fefa
JB		 2409 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
2410 break;
d783b061 2411 case IEEE80211_AMPDU_RX_STOP:
e1623446 2412 IWL_DEBUG_HT(priv, "stop Rx\n");
619753ff 2413 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
63013ae3 2414 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4620fefa
JB		 2415 ret = 0;
2416 break;
d783b061 2417 case IEEE80211_AMPDU_TX_START:
e1623446 2418 IWL_DEBUG_HT(priv, "start Tx\n");
619753ff 2419 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
d5a0ffa3 2420 if (ret == 0) {
898ed67b
WYG		 2421 priv->agg_tids_count++;
2422 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2423 priv->agg_tids_count);
d5a0ffa3 2424 }
4620fefa 2425 break;
d783b061 2426 case IEEE80211_AMPDU_TX_STOP:
e1623446 2427 IWL_DEBUG_HT(priv, "stop Tx\n");
619753ff 2428 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
898ed67b
WYG		 2429 if ((ret == 0) && (priv->agg_tids_count > 0)) {
2430 priv->agg_tids_count--;
2431 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2432 priv->agg_tids_count);
d5a0ffa3 2433 }
63013ae3 2434 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4620fefa 2435 ret = 0;
7cb1b088
WYG		 2436 if (priv->cfg->ht_params &&
2437 priv->cfg->ht_params->use_rts_for_aggregation) {
94597ab2
JB		 2438 /*
2439 * switch off RTS/CTS if it was previously enabled
2440 */
94597ab2
JB		 2441 sta_priv->lq_sta.lq.general_params.flags &=
2442 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
7e6a5886
JB		 2443 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2444 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
94597ab2 2445 }
4620fefa 2446 break;
f0527971 2447 case IEEE80211_AMPDU_TX_OPERATIONAL:
c8823ec1
JB		 2448 buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
2449
c91bd124 2450 iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
ba562f71 2451 tid, buf_size);
c8823ec1 2452
7b090687
JB		 2453 /*
2454 * If the limit is 0, then it wasn't initialised yet,
2455 * use the default. We can do that since we take the
2456 * minimum below, and we don't want to go above our
2457 * default due to hardware restrictions.
2458 */
2459 if (sta_priv->max_agg_bufsize == 0)
2460 sta_priv->max_agg_bufsize =
2461 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2462
2463 /*
2464 * Even though in theory the peer could have different
2465 * aggregation reorder buffer sizes for different sessions,
2466 * our ucode doesn't allow for that and has a global limit
2467 * for each station. Therefore, use the minimum of all the
2468 * aggregation sessions and our default value.
2469 */
2470 sta_priv->max_agg_bufsize =
2471 min(sta_priv->max_agg_bufsize, buf_size);
2472
7cb1b088
WYG		 2473 if (priv->cfg->ht_params &&
2474 priv->cfg->ht_params->use_rts_for_aggregation) {
cfecc6b4
WYG		 2475 /*
2476 * switch to RTS/CTS if it is the prefer protection
2477 * method for HT traffic
2478 */
94597ab2
JB		 2479
2480 sta_priv->lq_sta.lq.general_params.flags |=
2481 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
cfecc6b4 2482 }
7b090687
JB		 2483
2484 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
2485 sta_priv->max_agg_bufsize;
2486
2487 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2488 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
5bc9890f
WYG		 2489
2490 IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
2491 sta->addr, tid);
cfecc6b4 2492 ret = 0;
d783b061
TW		 2493 break;
2494 }
6ac2f839 2495 mutex_unlock(&priv->shrd->mutex);
4620fefa
JB		 2496
2497 return ret;
d783b061 2498}
9f58671e 2499
2dedbf58
JB		 2500static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
2501 struct ieee80211_vif *vif,
2502 struct ieee80211_sta *sta)
fe6b23dd
RC		 2503{
2504 struct iwl_priv *priv = hw->priv;
2505 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
a194e324 2506 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
eafdfbd3 2507 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
fe6b23dd
RC		 2508 int ret;
2509 u8 sta_id;
2510
2511 IWL_DEBUG_INFO(priv, "received request to add station %pM\n",
2512 sta->addr);
6ac2f839 2513 mutex_lock(&priv->shrd->mutex);
da5ae1cf
RC		 2514 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
2515 sta->addr);
c6892906 2516 sta_priv->sta_id = IWL_INVALID_STATION;
fe6b23dd
RC		 2517
2518 atomic_set(&sta_priv->pending_frames, 0);
2519 if (vif->type == NL80211_IFTYPE_AP)
2520 sta_priv->client = true;
2521
a194e324 2522 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
238d781d 2523 is_ap, sta, &sta_id);
fe6b23dd
RC		 2524 if (ret) {
2525 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
2526 sta->addr, ret);
2527 /* Should we return success if return code is EEXIST ? */
6ac2f839 2528 mutex_unlock(&priv->shrd->mutex);
fe6b23dd
RC		 2529 return ret;
2530 }
2531
c6892906 2532 sta_priv->sta_id = sta_id;
fd1af15d 2533
fe6b23dd 2534 /* Initialize rate scaling */
91dd6c27 2535 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
fe6b23dd
RC		 2536 sta->addr);
2537 iwl_rs_rate_init(priv, sta, sta_id);
6ac2f839 2538 mutex_unlock(&priv->shrd->mutex);
fe6b23dd 2539
fd1af15d 2540 return 0;
fe6b23dd
RC		 2541}
2542
2dedbf58
JB		 2543static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
2544 struct ieee80211_channel_switch *ch_switch)
79d07325
WYG		 2545{
2546 struct iwl_priv *priv = hw->priv;
2547 const struct iwl_channel_info *ch_info;
2548 struct ieee80211_conf *conf = &hw->conf;
aa2dc6b5 2549 struct ieee80211_channel *channel = ch_switch->channel;
79d07325 2550 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
246ed355
JB		 2551 /*
2552 * MULTI-FIXME
2553 * When we add support for multiple interfaces, we need to
2554 * revisit this. The channel switch command in the device
2555 * only affects the BSS context, but what does that really
2556 * mean? And what if we get a CSA on the second interface?
2557 * This needs a lot of work.
2558 */
2559 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
79d07325 2560 u16 ch;
79d07325
WYG		 2561
2562 IWL_DEBUG_MAC80211(priv, "enter\n");
2563
6ac2f839 2564 mutex_lock(&priv->shrd->mutex);
dc1a4068 2565
845a9c0d 2566 if (iwl_is_rfkill(priv->shrd))
dc1a4068 2567 goto out;
79d07325 2568
63013ae3
EG		 2569 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
2570 test_bit(STATUS_SCANNING, &priv->shrd->status) ||
2571 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
dc1a4068 2572 goto out;
79d07325 2573
246ed355 2574 if (!iwl_is_associated_ctx(ctx))
dc1a4068 2575 goto out;
79d07325 2576
90c300cb 2577 if (!priv->cfg->lib->set_channel_switch)
f973f87e 2578 goto out;
79d07325 2579
f973f87e
SG		 2580 ch = channel->hw_value;
2581 if (le16_to_cpu(ctx->active.channel) == ch)
2582 goto out;
2583
2584 ch_info = iwl_get_channel_info(priv, channel->band, ch);
2585 if (!is_channel_valid(ch_info)) {
2586 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
2587 goto out;
2588 }
79d07325 2589
10b15e6f 2590 spin_lock_irq(&priv->shrd->lock);
79d07325 2591
f973f87e 2592 priv->current_ht_config.smps = conf->smps_mode;
79d07325 2593
f973f87e
SG		 2594 /* Configure HT40 channels */
2595 ctx->ht.enabled = conf_is_ht(conf);
2596 if (ctx->ht.enabled) {
2597 if (conf_is_ht40_minus(conf)) {
2598 ctx->ht.extension_chan_offset =
2599 IEEE80211_HT_PARAM_CHA_SEC_BELOW;
2600 ctx->ht.is_40mhz = true;
2601 } else if (conf_is_ht40_plus(conf)) {
2602 ctx->ht.extension_chan_offset =
2603 IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
2604 ctx->ht.is_40mhz = true;
2605 } else {
2606 ctx->ht.extension_chan_offset =
2607 IEEE80211_HT_PARAM_CHA_SEC_NONE;
2608 ctx->ht.is_40mhz = false;
79d07325 2609 }
f973f87e
SG		 2610 } else
2611 ctx->ht.is_40mhz = false;
2612
2613 if ((le16_to_cpu(ctx->staging.channel) != ch))
2614 ctx->staging.flags = 0;
2615
2616 iwl_set_rxon_channel(priv, channel, ctx);
2617 iwl_set_rxon_ht(priv, ht_conf);
2618 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
2619
10b15e6f 2620 spin_unlock_irq(&priv->shrd->lock);
f973f87e
SG		 2621
2622 iwl_set_rate(priv);
2623 /*
2624 * at this point, staging_rxon has the
2625 * configuration for channel switch
2626 */
63013ae3 2627 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
f973f87e 2628 priv->switch_channel = cpu_to_le16(ch);
90c300cb 2629 if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
63013ae3 2630 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
f973f87e
SG		 2631 priv->switch_channel = 0;
2632 ieee80211_chswitch_done(ctx->vif, false);
79d07325 2633 }
f973f87e 2634
79d07325 2635out:
6ac2f839 2636 mutex_unlock(&priv->shrd->mutex);
79d07325
WYG		 2637 IWL_DEBUG_MAC80211(priv, "leave\n");
2638}
2639
2dedbf58
JB		 2640static void iwlagn_configure_filter(struct ieee80211_hw *hw,
2641 unsigned int changed_flags,
2642 unsigned int *total_flags,
2643 u64 multicast)
8b8ab9d5
JB		 2644{
2645 struct iwl_priv *priv = hw->priv;
2646 __le32 filter_or = 0, filter_nand = 0;
246ed355 2647 struct iwl_rxon_context *ctx;
8b8ab9d5
JB		 2648
2649#define CHK(test, flag) do { \
2650 if (*total_flags & (test)) \
2651 filter_or |= (flag); \
2652 else \
2653 filter_nand |= (flag); \
2654 } while (0)
2655
2656 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
2657 changed_flags, *total_flags);
2658
2659 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
bdb84fec
JB		 2660 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2661 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
8b8ab9d5
JB		 2662 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
2663
2664#undef CHK
2665
6ac2f839 2666 mutex_lock(&priv->shrd->mutex);
8b8ab9d5 2667
246ed355
JB		 2668 for_each_context(priv, ctx) {
2669 ctx->staging.filter_flags &= ~filter_nand;
2670 ctx->staging.filter_flags |= filter_or;
749ff4ef
SG		 2671
2672 /*
2673 * Not committing directly because hardware can perform a scan,
2674 * but we'll eventually commit the filter flags change anyway.
2675 */
246ed355 2676 }
8b8ab9d5 2677
6ac2f839 2678 mutex_unlock(&priv->shrd->mutex);
8b8ab9d5
JB		 2679
2680 /*
2681 * Receiving all multicast frames is always enabled by the
2682 * default flags setup in iwl_connection_init_rx_config()
2683 * since we currently do not support programming multicast
2684 * filters into the device.
2685 */
2686 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
2687 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
2688}
2689
2dedbf58 2690static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
716c74b0
WYG		 2691{
2692 struct iwl_priv *priv = hw->priv;
2693
6ac2f839 2694 mutex_lock(&priv->shrd->mutex);
716c74b0
WYG		 2695 IWL_DEBUG_MAC80211(priv, "enter\n");
2696
63013ae3 2697 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
716c74b0
WYG		 2698 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
2699 goto done;
2700 }
845a9c0d 2701 if (iwl_is_rfkill(priv->shrd)) {
716c74b0
WYG		 2702 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
2703 goto done;
2704 }
2705
2706 /*
2707 * mac80211 will not push any more frames for transmit
2708 * until the flush is completed
2709 */
2710 if (drop) {
2711 IWL_DEBUG_MAC80211(priv, "send flush command\n");
c68744fb 2712 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
716c74b0
WYG		 2713 IWL_ERR(priv, "flush request fail\n");
2714 goto done;
2715 }
2716 }
2717 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
5f178cd2 2718 iwl_trans_wait_tx_queue_empty(trans(priv));
716c74b0 2719done:
6ac2f839 2720 mutex_unlock(&priv->shrd->mutex);
716c74b0
WYG		 2721 IWL_DEBUG_MAC80211(priv, "leave\n");
2722}
2723
c6baf7fb 2724void iwlagn_disable_roc(struct iwl_priv *priv)
9b9190d9
JB		 2725{
2726 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
9b9190d9 2727
6ac2f839 2728 lockdep_assert_held(&priv->shrd->mutex);
9b9190d9 2729
c6baf7fb 2730 if (!priv->hw_roc_setup)
9b9190d9
JB		 2731 return;
2732
c6baf7fb 2733 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
9b9190d9 2734 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
9b9190d9 2735
898ed67b 2736 priv->hw_roc_channel = NULL;
9b9190d9 2737
c6baf7fb
JB		 2738 memset(ctx->staging.node_addr, 0, ETH_ALEN);
2739
805a3b81 2740 iwlagn_commit_rxon(priv, ctx);
9b9190d9
JB		 2741
2742 ctx->is_active = false;
c6baf7fb 2743 priv->hw_roc_setup = false;
9b9190d9
JB		 2744}
2745
c6baf7fb 2746static void iwlagn_disable_roc_work(struct work_struct *work)
9b9190d9
JB		 2747{
2748 struct iwl_priv *priv = container_of(work, struct iwl_priv,
c6baf7fb 2749 hw_roc_disable_work.work);
9b9190d9 2750
6ac2f839 2751 mutex_lock(&priv->shrd->mutex);
9b9190d9 2752 iwlagn_disable_roc(priv);
6ac2f839 2753 mutex_unlock(&priv->shrd->mutex);
9b9190d9
JB		 2754}
2755
2756static int iwl_mac_remain_on_channel(struct ieee80211_hw *hw,
2757 struct ieee80211_channel *channel,
2758 enum nl80211_channel_type channel_type,
2759 int duration)
2760{
2761 struct iwl_priv *priv = hw->priv;
c6baf7fb 2762 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
9b9190d9
JB		 2763 int err = 0;
2764
7a10e3e4 2765 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
9b9190d9
JB		 2766 return -EOPNOTSUPP;
2767
c6baf7fb 2768 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
9b9190d9
JB		 2769 return -EOPNOTSUPP;
2770
6ac2f839 2771 mutex_lock(&priv->shrd->mutex);
9b9190d9 2772
c6baf7fb
JB		 2773 /*
2774 * TODO: Remove this hack! Firmware needs to be updated
2775 * to allow longer off-channel periods in scanning for
2776 * this use case, based on a flag (and we'll need an API
2777 * flag in the firmware when it has that).
2778 */
2779 if (iwl_is_associated(priv, IWL_RXON_CTX_BSS) && duration > 80)
2780 duration = 80;
2781
63013ae3 2782 if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
9b9190d9
JB		 2783 err = -EBUSY;
2784 goto out;
2785 }
2786
898ed67b
WYG		 2787 priv->hw_roc_channel = channel;
2788 priv->hw_roc_chantype = channel_type;
c6baf7fb
JB		 2789 priv->hw_roc_duration = duration;
2790 cancel_delayed_work(&priv->hw_roc_disable_work);
2791
2792 if (!ctx->is_active) {
2793 ctx->is_active = true;
2794 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2795 memcpy(ctx->staging.node_addr,
2796 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2797 ETH_ALEN);
2798 memcpy(ctx->staging.bssid_addr,
2799 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2800 ETH_ALEN);
2801 err = iwlagn_commit_rxon(priv, ctx);
2802 if (err)
2803 goto out;
2804 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
2805 RXON_FILTER_PROMISC_MSK |
2806 RXON_FILTER_CTL2HOST_MSK;
2807
2808 err = iwlagn_commit_rxon(priv, ctx);
2809 if (err) {
2810 iwlagn_disable_roc(priv);
2811 goto out;
2812 }
2813 priv->hw_roc_setup = true;
2814 }
9b9190d9 2815
c6baf7fb
JB		 2816 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
2817 if (err)
2818 iwlagn_disable_roc(priv);
9b9190d9
JB		 2819
2820 out:
6ac2f839 2821 mutex_unlock(&priv->shrd->mutex);
9b9190d9
JB		 2822
2823 return err;
2824}
2825
2826static int iwl_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
2827{
2828 struct iwl_priv *priv = hw->priv;
2829
7a10e3e4 2830 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
9b9190d9
JB		 2831 return -EOPNOTSUPP;
2832
6ac2f839 2833 mutex_lock(&priv->shrd->mutex);
c6baf7fb 2834 iwl_scan_cancel_timeout(priv, priv->hw_roc_duration);
9b9190d9 2835 iwlagn_disable_roc(priv);
6ac2f839 2836 mutex_unlock(&priv->shrd->mutex);
9b9190d9
JB		 2837
2838 return 0;
2839}
2840
debcf734
JB		 2841static int iwl_mac_tx_sync(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2842 const u8 *bssid, enum ieee80211_tx_sync_type type)
2843{
2844 struct iwl_priv *priv = hw->priv;
2845 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2846 struct iwl_rxon_context *ctx = vif_priv->ctx;
2847 int ret;
2848 u8 sta_id;
2849
2850 mutex_lock(&priv->shrd->mutex);
2851
2852 if (iwl_is_associated_ctx(ctx)) {
2853 ret = 0;
2854 goto out;
2855 }
2856
2857 if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2858 ret = -EBUSY;
2859 goto out;
2860 }
2861
2862 ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
2863 if (ret)
2864 goto out;
2865
2866 if (WARN_ON(sta_id != ctx->ap_sta_id)) {
2867 ret = -EIO;
2868 goto out_remove_sta;
2869 }
2870
2871 memcpy(ctx->bssid, bssid, ETH_ALEN);
2872 ctx->preauth_bssid = true;
2873
2874 ret = iwlagn_commit_rxon(priv, ctx);
2875
2876 if (ret == 0)
2877 goto out;
2878
2879 out_remove_sta:
2880 iwl_remove_station(priv, sta_id, bssid);
2881 out:
2882 mutex_unlock(&priv->shrd->mutex);
2883 return ret;
2884}
2885
2886static void iwl_mac_finish_tx_sync(struct ieee80211_hw *hw,
2887 struct ieee80211_vif *vif,
2888 const u8 *bssid,
2889 enum ieee80211_tx_sync_type type)
2890{
2891 struct iwl_priv *priv = hw->priv;
2892 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2893 struct iwl_rxon_context *ctx = vif_priv->ctx;
2894
2895 mutex_lock(&priv->shrd->mutex);
2896
2897 if (iwl_is_associated_ctx(ctx))
2898 goto out;
2899
2900 iwl_remove_station(priv, ctx->ap_sta_id, bssid);
2901 ctx->preauth_bssid = false;
2902 /* no need to commit */
2903 out:
2904 mutex_unlock(&priv->shrd->mutex);
2905}
2906
b481de9c
ZY		 2907/*****************************************************************************
2908 *
2909 * driver setup and teardown
2910 *
2911 *****************************************************************************/
2912
4e39317d 2913static void iwl_setup_deferred_work(struct iwl_priv *priv)
b481de9c 2914{
74e28e44 2915 priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME);
b481de9c 2916
3e10caeb 2917 init_waitqueue_head(&priv->shrd->wait_command_queue);
b481de9c 2918
5b9f8cd3 2919 INIT_WORK(&priv->restart, iwl_bg_restart);
5b9f8cd3 2920 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
16e727e8 2921 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
65550636 2922 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
bee008b7 2923 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
fbba9410 2924 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
c6baf7fb
JB		 2925 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
2926 iwlagn_disable_roc_work);
2a421b91 2927
2a421b91 2928 iwl_setup_scan_deferred_work(priv);
bb8c093b 2929
6bd4dba3
EG		 2930 if (priv->cfg->lib->bt_setup_deferred_work)
2931 priv->cfg->lib->bt_setup_deferred_work(priv);
4e39317d
EG		 2932
2933 init_timer(&priv->statistics_periodic);
2934 priv->statistics_periodic.data = (unsigned long)priv;
5b9f8cd3 2935 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
b481de9c 2936
a9e1cb6a
WYG		 2937 init_timer(&priv->ucode_trace);
2938 priv->ucode_trace.data = (unsigned long)priv;
2939 priv->ucode_trace.function = iwl_bg_ucode_trace;
2940
22de94de
SG		 2941 init_timer(&priv->watchdog);
2942 priv->watchdog.data = (unsigned long)priv;
2943 priv->watchdog.function = iwl_bg_watchdog;
b481de9c
ZY		 2944}
2945
4e39317d 2946static void iwl_cancel_deferred_work(struct iwl_priv *priv)
b481de9c 2947{
90c300cb
WYG		 2948 if (priv->cfg->lib->cancel_deferred_work)
2949 priv->cfg->lib->cancel_deferred_work(priv);
b481de9c 2950
815e629b 2951 cancel_work_sync(&priv->run_time_calib_work);
b481de9c 2952 cancel_work_sync(&priv->beacon_update);
e7e16b90
SG		 2953
2954 iwl_cancel_scan_deferred_work(priv);
2955
bee008b7 2956 cancel_work_sync(&priv->bt_full_concurrency);
fbba9410 2957 cancel_work_sync(&priv->bt_runtime_config);
c6baf7fb 2958 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
e7e16b90 2959
4e39317d 2960 del_timer_sync(&priv->statistics_periodic);
a9e1cb6a 2961 del_timer_sync(&priv->ucode_trace);
b481de9c
ZY		 2962}
2963
89f186a8
RC		 2964static void iwl_init_hw_rates(struct iwl_priv *priv,
2965 struct ieee80211_rate *rates)
2966{
2967 int i;
2968
2969 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
2970 rates[i].bitrate = iwl_rates[i].ieee * 5;
2971 rates[i].hw_value = i; /* Rate scaling will work on indexes */
2972 rates[i].hw_value_short = i;
2973 rates[i].flags = 0;
2974 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
2975 /*
2976 * If CCK != 1M then set short preamble rate flag.
2977 */
2978 rates[i].flags |=
2979 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
2980 0 : IEEE80211_RATE_SHORT_PREAMBLE;
2981 }
2982 }
2983}
2984
2985static int iwl_init_drv(struct iwl_priv *priv)
2986{
2987 int ret;
2988
f39c95e8 2989 spin_lock_init(&priv->shrd->sta_lock);
89f186a8 2990
6ac2f839 2991 mutex_init(&priv->shrd->mutex);
89f186a8 2992
89f186a8
RC		 2993 priv->ieee_channels = NULL;
2994 priv->ieee_rates = NULL;
2995 priv->band = IEEE80211_BAND_2GHZ;
2996
2997 priv->iw_mode = NL80211_IFTYPE_STATION;
ba37a3d0 2998 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
a13d276f 2999 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
898ed67b 3000 priv->agg_tids_count = 0;
89f186a8 3001
8a472da4
WYG		 3002 /* initialize force reset */
3003 priv->force_reset[IWL_RF_RESET].reset_duration =
3004 IWL_DELAY_NEXT_FORCE_RF_RESET;
3005 priv->force_reset[IWL_FW_RESET].reset_duration =
3006 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
89f186a8 3007
410f2bb3
SG		 3008 priv->rx_statistics_jiffies = jiffies;
3009
89f186a8 3010 /* Choose which receivers/antennas to use */
e3f10cea 3011 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
89f186a8
RC		 3012
3013 iwl_init_scan_params(priv);
3014
22bf59a0 3015 /* init bt coex */
7cb1b088
WYG		 3016 if (priv->cfg->bt_params &&
3017 priv->cfg->bt_params->advanced_bt_coexist) {
b6e116e8
WYG		 3018 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3019 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3020 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
22bf59a0
WYG		 3021 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3022 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3023 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
22bf59a0
WYG		 3024 }
3025
89f186a8
RC		 3026 ret = iwl_init_channel_map(priv);
3027 if (ret) {
3028 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3029 goto err;
3030 }
3031
b39488a9 3032 ret = iwl_init_geos(priv);
89f186a8
RC		 3033 if (ret) {
3034 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3035 goto err_free_channel_map;
3036 }
3037 iwl_init_hw_rates(priv, priv->ieee_rates);
3038
3039 return 0;
3040
3041err_free_channel_map:
3042 iwl_free_channel_map(priv);
3043err:
3044 return ret;
3045}
3046
3047static void iwl_uninit_drv(struct iwl_priv *priv)
3048{
3049 iwl_calib_free_results(priv);
b39488a9 3050 iwl_free_geos(priv);
89f186a8 3051 iwl_free_channel_map(priv);
dfa2bdba
EG		 3052 if (priv->tx_cmd_pool)
3053 kmem_cache_destroy(priv->tx_cmd_pool);
811ecc99 3054 kfree(priv->scan_cmd);
4ce7cc2b 3055 kfree(priv->beacon_cmd);
c8ac61cf
JB		 3056#ifdef CONFIG_IWLWIFI_DEBUGFS
3057 kfree(priv->wowlan_sram);
3058#endif
89f186a8
RC		 3059}
3060
3a3b14c2 3061static void iwl_mac_rssi_callback(struct ieee80211_hw *hw,
207ecc5e
MV		 3062 enum ieee80211_rssi_event rssi_event)
3063{
3064 struct iwl_priv *priv = hw->priv;
3065
6ac2f839 3066 mutex_lock(&priv->shrd->mutex);
207ecc5e
MV		 3067
3068 if (priv->cfg->bt_params &&
3069 priv->cfg->bt_params->advanced_bt_coexist) {
3070 if (rssi_event == RSSI_EVENT_LOW)
3071 priv->bt_enable_pspoll = true;
3072 else if (rssi_event == RSSI_EVENT_HIGH)
3073 priv->bt_enable_pspoll = false;
3074
3075 iwlagn_send_advance_bt_config(priv);
3076 } else {
3077 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
3078 "ignoring RSSI callback\n");
3079 }
3080
6ac2f839 3081 mutex_unlock(&priv->shrd->mutex);
207ecc5e
MV		 3082}
3083
dc21b545 3084struct ieee80211_ops iwlagn_hw_ops = {
2295c66b
JB		 3085 .tx = iwlagn_mac_tx,
3086 .start = iwlagn_mac_start,
3087 .stop = iwlagn_mac_stop,
c01a4047 3088#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 3089 .suspend = iwlagn_mac_suspend,
3090 .resume = iwlagn_mac_resume,
26293133 3091#endif
5b9f8cd3
EG		 3092 .add_interface = iwl_mac_add_interface,
3093 .remove_interface = iwl_mac_remove_interface,
d4daaea6 3094 .change_interface = iwl_mac_change_interface,
2295c66b 3095 .config = iwlagn_mac_config,
8b8ab9d5 3096 .configure_filter = iwlagn_configure_filter,
2295c66b
JB		 3097 .set_key = iwlagn_mac_set_key,
3098 .update_tkip_key = iwlagn_mac_update_tkip_key,
c8ac61cf 3099 .set_rekey_data = iwlagn_mac_set_rekey_data,
5b9f8cd3 3100 .conf_tx = iwl_mac_conf_tx,
2295c66b
JB		 3101 .bss_info_changed = iwlagn_bss_info_changed,
3102 .ampdu_action = iwlagn_mac_ampdu_action,
6ab10ff8 3103 .hw_scan = iwl_mac_hw_scan,
2295c66b 3104 .sta_notify = iwlagn_mac_sta_notify,
fe6b23dd
RC		 3105 .sta_add = iwlagn_mac_sta_add,
3106 .sta_remove = iwl_mac_sta_remove,
2295c66b
JB		 3107 .channel_switch = iwlagn_mac_channel_switch,
3108 .flush = iwlagn_mac_flush,
a85d7cca 3109 .tx_last_beacon = iwl_mac_tx_last_beacon,
9b9190d9
JB		 3110 .remain_on_channel = iwl_mac_remain_on_channel,
3111 .cancel_remain_on_channel = iwl_mac_cancel_remain_on_channel,
207ecc5e 3112 .rssi_callback = iwl_mac_rssi_callback,
4613e72d 3113 CFG80211_TESTMODE_CMD(iwl_testmode_cmd)
eb64dca0 3114 CFG80211_TESTMODE_DUMP(iwl_testmode_dump)
debcf734
JB		 3115 .tx_sync = iwl_mac_tx_sync,
3116 .finish_tx_sync = iwl_mac_finish_tx_sync,
b481de9c
ZY		 3117};
3118
e98a1302 3119static u32 iwl_hw_detect(struct iwl_priv *priv)
3867fe04 3120{
83ed9015 3121 return iwl_read32(bus(priv), CSR_HW_REV);
3867fe04
WYG		 3122}
3123
dda61a44
EG		 3124/* Size of one Rx buffer in host DRAM */
3125#define IWL_RX_BUF_SIZE_4K (4 * 1024)
3126#define IWL_RX_BUF_SIZE_8K (8 * 1024)
3127
07d4f1ad
WYG		 3128static int iwl_set_hw_params(struct iwl_priv *priv)
3129{
9d143e9a 3130 if (iwlagn_mod_params.amsdu_size_8K)
d6189124
EG		 3131 hw_params(priv).rx_page_order =
3132 get_order(IWL_RX_BUF_SIZE_8K);
07d4f1ad 3133 else
d6189124
EG		 3134 hw_params(priv).rx_page_order =
3135 get_order(IWL_RX_BUF_SIZE_4K);
07d4f1ad 3136
9d143e9a 3137 if (iwlagn_mod_params.disable_11n)
88950758 3138 priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
07d4f1ad 3139
fd656935
EG		 3140 hw_params(priv).num_ampdu_queues =
3141 priv->cfg->base_params->num_of_ampdu_queues;
3142 hw_params(priv).shadow_reg_enable =
3143 priv->cfg->base_params->shadow_reg_enable;
f22be624
EG		 3144 hw_params(priv).sku = priv->cfg->sku;
3145 hw_params(priv).wd_timeout = priv->cfg->base_params->wd_timeout;
fd656935 3146
07d4f1ad 3147 /* Device-specific setup */
90c300cb 3148 return priv->cfg->lib->set_hw_params(priv);
07d4f1ad
WYG		 3149}
3150
119ea186
WYG		 3151/* This function both allocates and initializes hw and priv. */
3152static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
3153{
3154 struct iwl_priv *priv;
3155 /* mac80211 allocates memory for this device instance, including
3156 * space for this driver's private structure */
3157 struct ieee80211_hw *hw;
3158
3159 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
3160 if (hw == NULL) {
3161 pr_err("%s: Can not allocate network device\n",
3162 cfg->name);
3163 goto out;
3164 }
3165
3166 priv = hw->priv;
3167 priv->hw = hw;
3168
3169out:
3170 return hw;
3171}
3172
e6bb4c9c
EG		 3173int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
3174 struct iwl_cfg *cfg)
b2ea345e
WYG		 3175{
3176 int err = 0;
3177 struct iwl_priv *priv;
3178 struct ieee80211_hw *hw;
084dd791 3179 u16 num_mac;
b2ea345e
WYG		 3180 u32 hw_rev;
3181
3182 /************************
3183 * 1. Allocating HW data
3184 ************************/
b2ea345e
WYG		 3185 hw = iwl_alloc_all(cfg);
3186 if (!hw) {
3187 err = -ENOMEM;
807caf26
EG		 3188 goto out;
3189 }
3190
b2ea345e 3191 priv = hw->priv;
d5934110 3192 priv->bus = bus;
cac988a6 3193 priv->shrd = &priv->_shrd;
18d0077f 3194 bus->shrd = priv->shrd;
cac988a6
EG		 3195 priv->shrd->bus = bus;
3196 priv->shrd->priv = priv;
a48709c5 3197
e6bb4c9c
EG		 3198 priv->shrd->trans = trans_ops->alloc(priv->shrd);
3199 if (priv->shrd->trans == NULL) {
3200 err = -ENOMEM;
3201 goto out_free_traffic_mem;
3202 }
3203
b2ea345e 3204 /* At this point both hw and priv are allocated. */
8f2d3d2a 3205
d5934110 3206 SET_IEEE80211_DEV(hw, priv->bus->dev);
b481de9c 3207
e1623446 3208 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
82b9a121 3209 priv->cfg = cfg;
316c30d9 3210
bee008b7
WYG		 3211 /* is antenna coupling more than 35dB ? */
3212 priv->bt_ant_couple_ok =
48f20d35
EG		 3213 (iwlagn_mod_params.ant_coupling >
3214 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3215 true : false;
bee008b7 3216
9f28ebc3 3217 /* enable/disable bt channel inhibition */
48f20d35 3218 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
9f28ebc3
WYG		 3219 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3220 (priv->bt_ch_announce) ? "On" : "Off");
f37837c9 3221
20594eb0
WYG		 3222 if (iwl_alloc_traffic_mem(priv))
3223 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
b481de9c 3224
731a29b7 3225 /* these spin locks will be used in apm_ops.init and EEPROM access
a8b50a0a
MA		 3226 * we should init now
3227 */
83ed9015 3228 spin_lock_init(&bus(priv)->reg_lock);
10b15e6f 3229 spin_lock_init(&priv->shrd->lock);
4843b5a7
RC		 3230
3231 /*
3232 * stop and reset the on-board processor just in case it is in a
3233 * strange state ... like being left stranded by a primary kernel
3234 * and this is now the kdump kernel trying to start up
3235 */
83ed9015 3236 iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
4843b5a7 3237
084dd791
EG		 3238 /***********************
3239 * 3. Read REV register
3240 ***********************/
e98a1302 3241 hw_rev = iwl_hw_detect(priv);
c11362c0 3242 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
e98a1302 3243 priv->cfg->name, hw_rev);
316c30d9 3244
e6bb4c9c 3245 err = iwl_trans_request_irq(trans(priv));
1e89cbac 3246 if (err)
e6bb4c9c 3247 goto out_free_trans;
1e89cbac 3248
e6bb4c9c 3249 if (iwl_trans_prepare_card_hw(trans(priv))) {
bcd4fe2f 3250 err = -EIO;
086ed117 3251 IWL_WARN(priv, "Failed, HW not ready\n");
1e89cbac 3252 goto out_free_trans;
086ed117
MA		 3253 }
3254
91238714
TW		 3255 /*****************
3256 * 4. Read EEPROM
3257 *****************/
316c30d9 3258 /* Read the EEPROM */
e98a1302 3259 err = iwl_eeprom_init(priv, hw_rev);
316c30d9 3260 if (err) {
15b1687c 3261 IWL_ERR(priv, "Unable to init EEPROM\n");
1e89cbac 3262 goto out_free_trans;
316c30d9 3263 }
8614f360
TW		 3264 err = iwl_eeprom_check_version(priv);
3265 if (err)
c8f16138 3266 goto out_free_eeprom;
8614f360 3267
21a5b3c6
WYG		 3268 err = iwl_eeprom_check_sku(priv);
3269 if (err)
3270 goto out_free_eeprom;
3271
02883017 3272 /* extract MAC Address */
c6fa17ed
WYG		 3273 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
3274 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
3275 priv->hw->wiphy->addresses = priv->addresses;
3276 priv->hw->wiphy->n_addresses = 1;
3277 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
3278 if (num_mac > 1) {
3279 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
3280 ETH_ALEN);
3281 priv->addresses[1].addr[5]++;
3282 priv->hw->wiphy->n_addresses++;
3283 }
316c30d9
AK		 3284
3285 /************************
3286 * 5. Setup HW constants
3287 ************************/
da154e30 3288 if (iwl_set_hw_params(priv)) {
084dd791 3289 err = -ENOENT;
15b1687c 3290 IWL_ERR(priv, "failed to set hw parameters\n");
073d3f5f 3291 goto out_free_eeprom;
316c30d9
AK		 3292 }
3293
3294 /*******************
6ba87956 3295 * 6. Setup priv
316c30d9 3296 *******************/
b481de9c 3297
6ba87956 3298 err = iwl_init_drv(priv);
bf85ea4f 3299 if (err)
399f4900 3300 goto out_free_eeprom;
bf85ea4f 3301 /* At this point both hw and priv are initialized. */
316c30d9 3302
316c30d9 3303 /********************
09f9bf79 3304 * 7. Setup services
316c30d9 3305 ********************/
4e39317d 3306 iwl_setup_deferred_work(priv);
653fa4a0 3307 iwl_setup_rx_handlers(priv);
4613e72d 3308 iwl_testmode_init(priv);
316c30d9 3309
158bea07 3310 /*********************************************
084dd791 3311 * 8. Enable interrupts
158bea07 3312 *********************************************/
6ba87956 3313
554d1d02 3314 iwl_enable_rfkill_int(priv);
6cd0b1cb 3315
6cd0b1cb 3316 /* If platform's RF_KILL switch is NOT set to KILL */
83ed9015
EG		 3317 if (iwl_read32(bus(priv),
3318 CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
63013ae3 3319 clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
6cd0b1cb 3320 else
63013ae3 3321 set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
6ba87956 3322
a60e77e5 3323 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
63013ae3 3324 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
6cd0b1cb 3325
58d0f361 3326 iwl_power_initialize(priv);
39b73fb1 3327 iwl_tt_initialize(priv);
158bea07 3328
898ed67b 3329 init_completion(&priv->firmware_loading_complete);
562db532 3330
b08dfd04 3331 err = iwl_request_firmware(priv, true);
158bea07 3332 if (err)
7d47618a 3333 goto out_destroy_workqueue;
158bea07 3334
b481de9c
ZY		 3335 return 0;
3336
34c1b7ba 3337out_destroy_workqueue:
74e28e44
EG		 3338 destroy_workqueue(priv->shrd->workqueue);
3339 priv->shrd->workqueue = NULL;
6ba87956 3340 iwl_uninit_drv(priv);
34c1b7ba 3341out_free_eeprom:
073d3f5f 3342 iwl_eeprom_free(priv);
1e89cbac 3343out_free_trans:
e6bb4c9c 3344 iwl_trans_free(trans(priv));
34c1b7ba 3345out_free_traffic_mem:
20594eb0 3346 iwl_free_traffic_mem(priv);
d7c76f4c 3347 ieee80211_free_hw(priv->hw);
34c1b7ba 3348out:
b481de9c
ZY		 3349 return err;
3350}
3351
a48709c5 3352void __devexit iwl_remove(struct iwl_priv * priv)
b481de9c 3353{
898ed67b 3354 wait_for_completion(&priv->firmware_loading_complete);
562db532 3355
e1623446 3356 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
b481de9c 3357
67249625 3358 iwl_dbgfs_unregister(priv);
67249625 3359
5b9f8cd3
EG		 3360 /* ieee80211_unregister_hw call wil cause iwl_mac_stop to
3361 * to be called and iwl_down since we are removing the device
0b124c31
GG		 3362 * we need to set STATUS_EXIT_PENDING bit.
3363 */
63013ae3 3364 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
5ed540ae 3365
7a4e5281 3366 iwl_testmode_cleanup(priv);
5ed540ae
WYG		 3367 iwl_leds_exit(priv);
3368
859cfb0a 3369 if (priv->mac80211_registered) {
c4f55232 3370 ieee80211_unregister_hw(priv->hw);
859cfb0a 3371 priv->mac80211_registered = 0;
c4f55232
RR		 3372 }
3373
39b73fb1
WYG		 3374 iwl_tt_exit(priv);
3375
ae2c30bf
EG		 3376 /*This will stop the queues, move the device to low power state */
3377 iwl_trans_stop_device(trans(priv));
0359facc 3378
3599d39a 3379 iwl_dealloc_ucode(priv);
b481de9c 3380
073d3f5f 3381 iwl_eeprom_free(priv);
b481de9c 3382
948c171c 3383 /*netif_stop_queue(dev); */
74e28e44 3384 flush_workqueue(priv->shrd->workqueue);
948c171c 3385
5b9f8cd3 3386 /* ieee80211_unregister_hw calls iwl_mac_stop, which flushes
74e28e44 3387 * priv->shrd->workqueue... so we can't take down the workqueue
b481de9c 3388 * until now... */
74e28e44
EG		 3389 destroy_workqueue(priv->shrd->workqueue);
3390 priv->shrd->workqueue = NULL;
20594eb0 3391 iwl_free_traffic_mem(priv);
b481de9c 3392
e6bb4c9c 3393 iwl_trans_free(trans(priv));
34c1b7ba 3394
6ba87956 3395 iwl_uninit_drv(priv);
b481de9c 3396
77834543 3397 dev_kfree_skb(priv->beacon_skb);
b481de9c
ZY		 3398
3399 ieee80211_free_hw(priv->hw);
3400}
3401
b481de9c
ZY		 3402
3403/*****************************************************************************
3404 *
3405 * driver and module entry point
3406 *
3407 *****************************************************************************/
5b9f8cd3 3408static int __init iwl_init(void)
b481de9c
ZY		 3409{
3410
3411 int ret;
c96c31e4
JP		 3412 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
3413 pr_info(DRV_COPYRIGHT "\n");
897e1cf2 3414
e227ceac 3415 ret = iwlagn_rate_control_register();
897e1cf2 3416 if (ret) {
c96c31e4 3417 pr_err("Unable to register rate control algorithm: %d\n", ret);
897e1cf2
RC		 3418 return ret;
3419 }
3420
48d1a211 3421 ret = iwl_pci_register_driver();
b481de9c 3422
48d1a211
EG		 3423 if (ret)
3424 goto error_register;
b481de9c 3425 return ret;
897e1cf2 3426
897e1cf2 3427error_register:
e227ceac 3428 iwlagn_rate_control_unregister();
897e1cf2 3429 return ret;
b481de9c
ZY		 3430}
3431
5b9f8cd3 3432static void __exit iwl_exit(void)
b481de9c 3433{
48d1a211 3434 iwl_pci_unregister_driver();
e227ceac 3435 iwlagn_rate_control_unregister();
b481de9c
ZY		 3436}
3437
5b9f8cd3
EG		 3438module_exit(iwl_exit);
3439module_init(iwl_init);
a562a9dd
RC		 3440
3441#ifdef CONFIG_IWLWIFI_DEBUG
48f20d35
EG		 3442module_param_named(debug, iwlagn_mod_params.debug_level, uint,
3443 S_IRUGO | S_IWUSR);
a562a9dd
RC		 3444MODULE_PARM_DESC(debug, "debug output mask");
3445#endif
3446
2b068618
WYG		 3447module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
3448MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
2b068618
WYG		 3449module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
3450MODULE_PARM_DESC(queues_num, "number of hw queues.");
2b068618
WYG		 3451module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
3452MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
2b068618
WYG		 3453module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
3454 int, S_IRUGO);
3455MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
2b068618
WYG		 3456module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
3457MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
dd7a2509 3458
48f20d35
EG		 3459module_param_named(ucode_alternative,
3460 iwlagn_mod_params.wanted_ucode_alternative,
3461 int, S_IRUGO);
dd7a2509
JB		 3462MODULE_PARM_DESC(ucode_alternative,
3463 "specify ucode alternative to use from ucode file");
bee008b7 3464
48f20d35
EG		 3465module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
3466 int, S_IRUGO);
bee008b7
WYG		 3467MODULE_PARM_DESC(antenna_coupling,
3468 "specify antenna coupling in dB (defualt: 0 dB)");
f37837c9 3469
48f20d35
EG		 3470module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
3471 bool, S_IRUGO);
9f28ebc3 3472MODULE_PARM_DESC(bt_ch_inhibition,
fee84f0d 3473 "Enable BT channel inhibition (default: enable)");
b7977ffa
SG		 3474
3475module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
3476MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
3477
3478module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
3479MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
b60eec9b 3480
300d0834
WYG		 3481module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
3482MODULE_PARM_DESC(wd_disable,
3483 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3484
b60eec9b
WYG		 3485/*
3486 * set bt_coex_active to true, uCode will do kill/defer
3487 * every time the priority line is asserted (BT is sending signals on the
3488 * priority line in the PCIx).
3489 * set bt_coex_active to false, uCode will ignore the BT activity and
3490 * perform the normal operation
3491 *
3492 * User might experience transmit issue on some platform due to WiFi/BT
3493 * co-exist problem. The possible behaviors are:
3494 * Able to scan and finding all the available AP
3495 * Not able to associate with any AP
3496 * On those platforms, WiFi communication can be restored by set
3497 * "bt_coex_active" module parameter to "false"
3498 *
3499 * default: bt_coex_active = true (BT_COEX_ENABLE)
3500 */
3501module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
3502 bool, S_IRUGO);
3503MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
6b0184c4
WYG		 3504
3505module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
3506MODULE_PARM_DESC(led_mode, "0=system default, "
3507 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3f1e5f4a 3508
0172b029
WYG		 3509module_param_named(power_save, iwlagn_mod_params.power_save,
3510 bool, S_IRUGO);
3511MODULE_PARM_DESC(power_save,
3512 "enable WiFi power management (default: disable)");
3513
f7538168
WYG		 3514module_param_named(power_level, iwlagn_mod_params.power_level,
3515 int, S_IRUGO);
3516MODULE_PARM_DESC(power_level,
3517 "default power save level (range from 1 - 5, default: 1)");
3518
dd5b6d0a
WYG		 3519module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
3520 bool, S_IRUGO);
3521MODULE_PARM_DESC(auto_agg,
3522 "enable agg w/o check traffic load (default: enable)");
3523
3f1e5f4a
WYG		 3524/*
3525 * For now, keep using power level 1 instead of automatically
3526 * adjusting ...
3527 */
3528module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
3529 bool, S_IRUGO);
3530MODULE_PARM_DESC(no_sleep_autoadjust,
3531 "don't automatically adjust sleep level "
3532 "according to maximum network latency (default: true)");
Linux kernel - Deliverables
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