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iwlwifi: do not re-configure HT40 after associated
[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"
0de76736 50#include "iwl-agn-calib.h"
a1175124 51#include "iwl-agn.h"
48f20d35 52#include "iwl-shared.h"
d5934110 53#include "iwl-bus.h"
c85eb619 54#include "iwl-trans.h"
416e1438 55
b481de9c
ZY		 56/******************************************************************************
57 *
58 * module boiler plate
59 *
60 ******************************************************************************/
61
b481de9c
ZY		 62/*
63 * module name, copyright, version, etc.
b481de9c 64 */
d783b061 65#define DRV_DESCRIPTION "Intel(R) Wireless WiFi Link AGN driver for Linux"
b481de9c 66
0a6857e7 67#ifdef CONFIG_IWLWIFI_DEBUG
b481de9c
ZY		 68#define VD "d"
69#else
70#define VD
71#endif
72
81963d68 73#define DRV_VERSION IWLWIFI_VERSION VD
b481de9c 74
b481de9c
ZY		 75
76MODULE_DESCRIPTION(DRV_DESCRIPTION);
77MODULE_VERSION(DRV_VERSION);
a7b75207 78MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
b481de9c 79MODULE_LICENSE("GPL");
3c607d27 80MODULE_ALIAS("iwlagn");
b481de9c 81
5b9f8cd3 82void iwl_update_chain_flags(struct iwl_priv *priv)
5da4b55f 83{
246ed355 84 struct iwl_rxon_context *ctx;
5da4b55f 85
e3f10cea
WYG		 86 for_each_context(priv, ctx) {
87 iwlagn_set_rxon_chain(priv, ctx);
88 if (ctx->active.rx_chain != ctx->staging.rx_chain)
89 iwlagn_commit_rxon(priv, ctx);
246ed355 90 }
5da4b55f
MA		 91}
92
47ff65c4
DH		 93/* Parse the beacon frame to find the TIM element and set tim_idx & tim_size */
94static void iwl_set_beacon_tim(struct iwl_priv *priv,
77834543
JB		 95 struct iwl_tx_beacon_cmd *tx_beacon_cmd,
96 u8 *beacon, u32 frame_size)
47ff65c4
DH		 97{
98 u16 tim_idx;
99 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)beacon;
100
101 /*
102 * The index is relative to frame start but we start looking at the
103 * variable-length part of the beacon.
104 */
105 tim_idx = mgmt->u.beacon.variable - beacon;
106
107 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
108 while ((tim_idx < (frame_size - 2)) &&
109 (beacon[tim_idx] != WLAN_EID_TIM))
110 tim_idx += beacon[tim_idx+1] + 2;
111
112 /* If TIM field was found, set variables */
113 if ((tim_idx < (frame_size - 1)) && (beacon[tim_idx] == WLAN_EID_TIM)) {
114 tx_beacon_cmd->tim_idx = cpu_to_le16(tim_idx);
115 tx_beacon_cmd->tim_size = beacon[tim_idx+1];
116 } else
117 IWL_WARN(priv, "Unable to find TIM Element in beacon\n");
118}
119
8a98d49e 120int iwlagn_send_beacon_cmd(struct iwl_priv *priv)
4bf64efd
TW		 121{
122 struct iwl_tx_beacon_cmd *tx_beacon_cmd;
8a98d49e
JB		 123 struct iwl_host_cmd cmd = {
124 .id = REPLY_TX_BEACON,
e419d62d 125 .flags = CMD_SYNC,
8a98d49e 126 };
0b5b3ff1 127 struct ieee80211_tx_info *info;
47ff65c4
DH		 128 u32 frame_size;
129 u32 rate_flags;
130 u32 rate;
8a98d49e 131
47ff65c4
DH		 132 /*
133 * We have to set up the TX command, the TX Beacon command, and the
134 * beacon contents.
135 */
4bf64efd 136
6ac2f839 137 lockdep_assert_held(&priv->shrd->mutex);
76d04815
JB		 138
139 if (!priv->beacon_ctx) {
140 IWL_ERR(priv, "trying to build beacon w/o beacon context!\n");
950094cb 141 return 0;
76d04815
JB		 142 }
143
8a98d49e
JB		 144 if (WARN_ON(!priv->beacon_skb))
145 return -EINVAL;
146
4ce7cc2b
JB		 147 /* Allocate beacon command */
148 if (!priv->beacon_cmd)
149 priv->beacon_cmd = kzalloc(sizeof(*tx_beacon_cmd), GFP_KERNEL);
150 tx_beacon_cmd = priv->beacon_cmd;
8a98d49e
JB		 151 if (!tx_beacon_cmd)
152 return -ENOMEM;
153
154 frame_size = priv->beacon_skb->len;
4bf64efd 155
47ff65c4 156 /* Set up TX command fields */
4bf64efd 157 tx_beacon_cmd->tx.len = cpu_to_le16((u16)frame_size);
76d04815 158 tx_beacon_cmd->tx.sta_id = priv->beacon_ctx->bcast_sta_id;
47ff65c4
DH		 159 tx_beacon_cmd->tx.stop_time.life_time = TX_CMD_LIFE_TIME_INFINITE;
160 tx_beacon_cmd->tx.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK |
161 TX_CMD_FLG_TSF_MSK | TX_CMD_FLG_STA_RATE_MSK;
4bf64efd 162
47ff65c4 163 /* Set up TX beacon command fields */
4ce7cc2b 164 iwl_set_beacon_tim(priv, tx_beacon_cmd, priv->beacon_skb->data,
77834543 165 frame_size);
4bf64efd 166
47ff65c4 167 /* Set up packet rate and flags */
0b5b3ff1
JB		 168 info = IEEE80211_SKB_CB(priv->beacon_skb);
169
170 /*
171 * Let's set up the rate at least somewhat correctly;
172 * it will currently not actually be used by the uCode,
173 * it uses the broadcast station's rate instead.
174 */
175 if (info->control.rates[0].idx < 0 ||
176 info->control.rates[0].flags & IEEE80211_TX_RC_MCS)
177 rate = 0;
178 else
179 rate = info->control.rates[0].idx;
180
0e1654fa 181 priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant,
d6189124 182 hw_params(priv).valid_tx_ant);
47ff65c4 183 rate_flags = iwl_ant_idx_to_flags(priv->mgmt_tx_ant);
0b5b3ff1
JB		 184
185 /* In mac80211, rates for 5 GHz start at 0 */
186 if (info->band == IEEE80211_BAND_5GHZ)
187 rate += IWL_FIRST_OFDM_RATE;
188 else if (rate >= IWL_FIRST_CCK_RATE && rate <= IWL_LAST_CCK_RATE)
47ff65c4 189 rate_flags |= RATE_MCS_CCK_MSK;
0b5b3ff1
JB		 190
191 tx_beacon_cmd->tx.rate_n_flags =
192 iwl_hw_set_rate_n_flags(rate, rate_flags);
4bf64efd 193
8a98d49e 194 /* Submit command */
4ce7cc2b 195 cmd.len[0] = sizeof(*tx_beacon_cmd);
3fa50738 196 cmd.data[0] = tx_beacon_cmd;
4ce7cc2b
JB		 197 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
198 cmd.len[1] = frame_size;
199 cmd.data[1] = priv->beacon_skb->data;
200 cmd.dataflags[1] = IWL_HCMD_DFL_NOCOPY;
7aaa1d79 201
e6bb4c9c 202 return iwl_trans_send_cmd(trans(priv), &cmd);
a8e74e27
SO		 203}
204
5b9f8cd3 205static void iwl_bg_beacon_update(struct work_struct *work)
b481de9c 206{
c79dd5b5
TW		 207 struct iwl_priv *priv =
208 container_of(work, struct iwl_priv, beacon_update);
b481de9c
ZY		 209 struct sk_buff *beacon;
210
6ac2f839 211 mutex_lock(&priv->shrd->mutex);
76d04815
JB		 212 if (!priv->beacon_ctx) {
213 IWL_ERR(priv, "updating beacon w/o beacon context!\n");
214 goto out;
215 }
b481de9c 216
60744f62
JB		 217 if (priv->beacon_ctx->vif->type != NL80211_IFTYPE_AP) {
218 /*
219 * The ucode will send beacon notifications even in
220 * IBSS mode, but we don't want to process them. But
221 * we need to defer the type check to here due to
222 * requiring locking around the beacon_ctx access.
223 */
224 goto out;
225 }
226
76d04815
JB		 227 /* Pull updated AP beacon from mac80211. will fail if not in AP mode */
228 beacon = ieee80211_beacon_get(priv->hw, priv->beacon_ctx->vif);
b481de9c 229 if (!beacon) {
77834543 230 IWL_ERR(priv, "update beacon failed -- keeping old\n");
76d04815 231 goto out;
b481de9c
ZY		 232 }
233
b481de9c 234 /* new beacon skb is allocated every time; dispose previous.*/
77834543 235 dev_kfree_skb(priv->beacon_skb);
b481de9c 236
12e934dc 237 priv->beacon_skb = beacon;
b481de9c 238
2295c66b 239 iwlagn_send_beacon_cmd(priv);
76d04815 240 out:
6ac2f839 241 mutex_unlock(&priv->shrd->mutex);
b481de9c
ZY		 242}
243
fbba9410
WYG		 244static void iwl_bg_bt_runtime_config(struct work_struct *work)
245{
246 struct iwl_priv *priv =
247 container_of(work, struct iwl_priv, bt_runtime_config);
248
63013ae3 249 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
fbba9410
WYG		 250 return;
251
252 /* dont send host command if rf-kill is on */
845a9c0d 253 if (!iwl_is_ready_rf(priv->shrd))
fbba9410 254 return;
e55b517c 255 iwlagn_send_advance_bt_config(priv);
fbba9410
WYG		 256}
257
bee008b7
WYG		 258static void iwl_bg_bt_full_concurrency(struct work_struct *work)
259{
260 struct iwl_priv *priv =
261 container_of(work, struct iwl_priv, bt_full_concurrency);
246ed355 262 struct iwl_rxon_context *ctx;
bee008b7 263
6ac2f839 264 mutex_lock(&priv->shrd->mutex);
dc1a4068 265
63013ae3 266 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
dc1a4068 267 goto out;
bee008b7
WYG		 268
269 /* dont send host command if rf-kill is on */
845a9c0d 270 if (!iwl_is_ready_rf(priv->shrd))
dc1a4068 271 goto out;
bee008b7
WYG		 272
273 IWL_DEBUG_INFO(priv, "BT coex in %s mode\n",
274 priv->bt_full_concurrent ?
275 "full concurrency" : "3-wire");
276
277 /*
278 * LQ & RXON updated cmds must be sent before BT Config cmd
279 * to avoid 3-wire collisions
280 */
246ed355 281 for_each_context(priv, ctx) {
e3f10cea 282 iwlagn_set_rxon_chain(priv, ctx);
805a3b81 283 iwlagn_commit_rxon(priv, ctx);
246ed355 284 }
bee008b7 285
e55b517c 286 iwlagn_send_advance_bt_config(priv);
dc1a4068 287out:
6ac2f839 288 mutex_unlock(&priv->shrd->mutex);
bee008b7
WYG		 289}
290
4e39317d 291/**
5b9f8cd3 292 * iwl_bg_statistics_periodic - Timer callback to queue statistics
4e39317d
EG		 293 *
294 * This callback is provided in order to send a statistics request.
295 *
296 * This timer function is continually reset to execute within
297 * REG_RECALIB_PERIOD seconds since the last STATISTICS_NOTIFICATION
298 * was received. We need to ensure we receive the statistics in order
299 * to update the temperature used for calibrating the TXPOWER.
300 */
5b9f8cd3 301static void iwl_bg_statistics_periodic(unsigned long data)
4e39317d
EG		 302{
303 struct iwl_priv *priv = (struct iwl_priv *)data;
304
63013ae3 305 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4e39317d
EG		 306 return;
307
61780ee3 308 /* dont send host command if rf-kill is on */
845a9c0d 309 if (!iwl_is_ready_rf(priv->shrd))
61780ee3
MA		 310 return;
311
ef8d5529 312 iwl_send_statistics_request(priv, CMD_ASYNC, false);
4e39317d
EG		 313}
314
a9e1cb6a
WYG		 315
316static void iwl_print_cont_event_trace(struct iwl_priv *priv, u32 base,
317 u32 start_idx, u32 num_events,
318 u32 mode)
319{
320 u32 i;
321 u32 ptr; /* SRAM byte address of log data */
322 u32 ev, time, data; /* event log data */
323 unsigned long reg_flags;
324
325 if (mode == 0)
326 ptr = base + (4 * sizeof(u32)) + (start_idx * 2 * sizeof(u32));
327 else
328 ptr = base + (4 * sizeof(u32)) + (start_idx * 3 * sizeof(u32));
329
330 /* Make sure device is powered up for SRAM reads */
83ed9015
EG		 331 spin_lock_irqsave(&bus(priv)->reg_lock, reg_flags);
332 if (iwl_grab_nic_access(bus(priv))) {
333 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
a9e1cb6a
WYG		 334 return;
335 }
336
337 /* Set starting address; reads will auto-increment */
83ed9015 338 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, ptr);
a9e1cb6a
WYG		 339 rmb();
340
341 /*
342 * "time" is actually "data" for mode 0 (no timestamp).
343 * place event id # at far right for easier visual parsing.
344 */
345 for (i = 0; i < num_events; i++) {
83ed9015
EG		 346 ev = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
347 time = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
a9e1cb6a
WYG		 348 if (mode == 0) {
349 trace_iwlwifi_dev_ucode_cont_event(priv,
350 0, time, ev);
351 } else {
83ed9015 352 data = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
a9e1cb6a
WYG		 353 trace_iwlwifi_dev_ucode_cont_event(priv,
354 time, data, ev);
355 }
356 }
357 /* Allow device to power down */
83ed9015
EG		 358 iwl_release_nic_access(bus(priv));
359 spin_unlock_irqrestore(&bus(priv)->reg_lock, reg_flags);
a9e1cb6a
WYG		 360}
361
875295f1 362static void iwl_continuous_event_trace(struct iwl_priv *priv)
a9e1cb6a
WYG		 363{
364 u32 capacity; /* event log capacity in # entries */
365 u32 base; /* SRAM byte address of event log header */
366 u32 mode; /* 0 - no timestamp, 1 - timestamp recorded */
367 u32 num_wraps; /* # times uCode wrapped to top of log */
368 u32 next_entry; /* index of next entry to be written by uCode */
369
d7d5783c 370 base = priv->device_pointers.error_event_table;
4caab328 371 if (iwlagn_hw_valid_rtc_data_addr(base)) {
83ed9015
EG		 372 capacity = iwl_read_targ_mem(bus(priv), base);
373 num_wraps = iwl_read_targ_mem(bus(priv),
374 base + (2 * sizeof(u32)));
375 mode = iwl_read_targ_mem(bus(priv), base + (1 * sizeof(u32)));
376 next_entry = iwl_read_targ_mem(bus(priv),
377 base + (3 * sizeof(u32)));
a9e1cb6a
WYG		 378 } else
379 return;
380
381 if (num_wraps == priv->event_log.num_wraps) {
382 iwl_print_cont_event_trace(priv,
383 base, priv->event_log.next_entry,
384 next_entry - priv->event_log.next_entry,
385 mode);
386 priv->event_log.non_wraps_count++;
387 } else {
388 if ((num_wraps - priv->event_log.num_wraps) > 1)
389 priv->event_log.wraps_more_count++;
390 else
391 priv->event_log.wraps_once_count++;
392 trace_iwlwifi_dev_ucode_wrap_event(priv,
393 num_wraps - priv->event_log.num_wraps,
394 next_entry, priv->event_log.next_entry);
395 if (next_entry < priv->event_log.next_entry) {
396 iwl_print_cont_event_trace(priv, base,
397 priv->event_log.next_entry,
398 capacity - priv->event_log.next_entry,
399 mode);
400
401 iwl_print_cont_event_trace(priv, base, 0,
402 next_entry, mode);
403 } else {
404 iwl_print_cont_event_trace(priv, base,
405 next_entry, capacity - next_entry,
406 mode);
407
408 iwl_print_cont_event_trace(priv, base, 0,
409 next_entry, mode);
410 }
411 }
412 priv->event_log.num_wraps = num_wraps;
413 priv->event_log.next_entry = next_entry;
414}
415
416/**
417 * iwl_bg_ucode_trace - Timer callback to log ucode event
418 *
419 * The timer is continually set to execute every
420 * UCODE_TRACE_PERIOD milliseconds after the last timer expired
421 * this function is to perform continuous uCode event logging operation
422 * if enabled
423 */
424static void iwl_bg_ucode_trace(unsigned long data)
425{
426 struct iwl_priv *priv = (struct iwl_priv *)data;
427
63013ae3 428 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
a9e1cb6a
WYG		 429 return;
430
431 if (priv->event_log.ucode_trace) {
432 iwl_continuous_event_trace(priv);
433 /* Reschedule the timer to occur in UCODE_TRACE_PERIOD */
434 mod_timer(&priv->ucode_trace,
435 jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
436 }
437}
438
65550636
WYG		 439static void iwl_bg_tx_flush(struct work_struct *work)
440{
441 struct iwl_priv *priv =
442 container_of(work, struct iwl_priv, tx_flush);
443
63013ae3 444 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
65550636
WYG		 445 return;
446
447 /* do nothing if rf-kill is on */
845a9c0d 448 if (!iwl_is_ready_rf(priv->shrd))
65550636
WYG		 449 return;
450
c68744fb
WYG		 451 IWL_DEBUG_INFO(priv, "device request: flush all tx frames\n");
452 iwlagn_dev_txfifo_flush(priv, IWL_DROP_ALL);
65550636
WYG		 453}
454
b481de9c
ZY		 455/******************************************************************************
456 *
457 * uCode download functions
458 *
459 ******************************************************************************/
460
3599d39a 461static void iwl_free_fw_desc(struct iwl_priv *priv, struct fw_desc *desc)
dbf28e21
JB		 462{
463 if (desc->v_addr)
26bfc0cf 464 dma_free_coherent(bus(priv)->dev, desc->len,
dbf28e21
JB		 465 desc->v_addr, desc->p_addr);
466 desc->v_addr = NULL;
467 desc->len = 0;
468}
469
3599d39a 470static void iwl_free_fw_img(struct iwl_priv *priv, struct fw_img *img)
dbf28e21 471{
3599d39a
EG		 472 iwl_free_fw_desc(priv, &img->code);
473 iwl_free_fw_desc(priv, &img->data);
dbf28e21
JB		 474}
475
3599d39a
EG		 476static void iwl_dealloc_ucode(struct iwl_priv *priv)
477{
478 iwl_free_fw_img(priv, &priv->ucode_rt);
479 iwl_free_fw_img(priv, &priv->ucode_init);
c8ac61cf 480 iwl_free_fw_img(priv, &priv->ucode_wowlan);
3599d39a
EG		 481}
482
483static int iwl_alloc_fw_desc(struct iwl_priv *priv, struct fw_desc *desc,
dbf28e21
JB		 484 const void *data, size_t len)
485{
486 if (!len) {
487 desc->v_addr = NULL;
488 return -EINVAL;
489 }
490
26bfc0cf 491 desc->v_addr = dma_alloc_coherent(bus(priv)->dev, len,
dbf28e21
JB		 492 &desc->p_addr, GFP_KERNEL);
493 if (!desc->v_addr)
494 return -ENOMEM;
3599d39a 495
dbf28e21
JB		 496 desc->len = len;
497 memcpy(desc->v_addr, data, len);
498 return 0;
499}
500
4d2a5d0e
JB		 501static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags)
502{
4d2a5d0e
JB		 503 int i;
504
505 /*
506 * The default context is always valid,
507 * the PAN context depends on uCode.
508 */
7a10e3e4 509 priv->shrd->valid_contexts = BIT(IWL_RXON_CTX_BSS);
4d2a5d0e 510 if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN)
7a10e3e4 511 priv->shrd->valid_contexts |= BIT(IWL_RXON_CTX_PAN);
4d2a5d0e
JB		 512
513 for (i = 0; i < NUM_IWL_RXON_CTX; i++)
514 priv->contexts[i].ctxid = i;
515
516 priv->contexts[IWL_RXON_CTX_BSS].always_active = true;
517 priv->contexts[IWL_RXON_CTX_BSS].is_active = true;
518 priv->contexts[IWL_RXON_CTX_BSS].rxon_cmd = REPLY_RXON;
519 priv->contexts[IWL_RXON_CTX_BSS].rxon_timing_cmd = REPLY_RXON_TIMING;
520 priv->contexts[IWL_RXON_CTX_BSS].rxon_assoc_cmd = REPLY_RXON_ASSOC;
521 priv->contexts[IWL_RXON_CTX_BSS].qos_cmd = REPLY_QOS_PARAM;
522 priv->contexts[IWL_RXON_CTX_BSS].ap_sta_id = IWL_AP_ID;
523 priv->contexts[IWL_RXON_CTX_BSS].wep_key_cmd = REPLY_WEPKEY;
4d2a5d0e
JB		 524 priv->contexts[IWL_RXON_CTX_BSS].exclusive_interface_modes =
525 BIT(NL80211_IFTYPE_ADHOC);
526 priv->contexts[IWL_RXON_CTX_BSS].interface_modes =
527 BIT(NL80211_IFTYPE_STATION);
528 priv->contexts[IWL_RXON_CTX_BSS].ap_devtype = RXON_DEV_TYPE_AP;
529 priv->contexts[IWL_RXON_CTX_BSS].ibss_devtype = RXON_DEV_TYPE_IBSS;
530 priv->contexts[IWL_RXON_CTX_BSS].station_devtype = RXON_DEV_TYPE_ESS;
531 priv->contexts[IWL_RXON_CTX_BSS].unused_devtype = RXON_DEV_TYPE_ESS;
532
533 priv->contexts[IWL_RXON_CTX_PAN].rxon_cmd = REPLY_WIPAN_RXON;
534 priv->contexts[IWL_RXON_CTX_PAN].rxon_timing_cmd =
535 REPLY_WIPAN_RXON_TIMING;
536 priv->contexts[IWL_RXON_CTX_PAN].rxon_assoc_cmd =
537 REPLY_WIPAN_RXON_ASSOC;
538 priv->contexts[IWL_RXON_CTX_PAN].qos_cmd = REPLY_WIPAN_QOS_PARAM;
539 priv->contexts[IWL_RXON_CTX_PAN].ap_sta_id = IWL_AP_ID_PAN;
540 priv->contexts[IWL_RXON_CTX_PAN].wep_key_cmd = REPLY_WIPAN_WEPKEY;
541 priv->contexts[IWL_RXON_CTX_PAN].bcast_sta_id = IWLAGN_PAN_BCAST_ID;
542 priv->contexts[IWL_RXON_CTX_PAN].station_flags = STA_FLG_PAN_STATION;
4d2a5d0e
JB		 543 priv->contexts[IWL_RXON_CTX_PAN].interface_modes =
544 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP);
c6baf7fb
JB		 545
546 if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P)
547 priv->contexts[IWL_RXON_CTX_PAN].interface_modes |=
548 BIT(NL80211_IFTYPE_P2P_CLIENT) |
549 BIT(NL80211_IFTYPE_P2P_GO);
550
4d2a5d0e
JB		 551 priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP;
552 priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA;
553 priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P;
554
555 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
556}
557
558
dd7a2509
JB		 559struct iwlagn_ucode_capabilities {
560 u32 max_probe_length;
6a822d06 561 u32 standard_phy_calibration_size;
3997ff39 562 u32 flags;
dd7a2509 563};
edcdf8b2 564
b08dfd04 565static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context);
ade4c649 566static int iwlagn_mac_setup_register(struct iwl_priv *priv,
dd7a2509 567 struct iwlagn_ucode_capabilities *capa);
b08dfd04 568
39396085
JS		 569#define UCODE_EXPERIMENTAL_INDEX 100
570#define UCODE_EXPERIMENTAL_TAG "exp"
571
b08dfd04
JB		 572static int __must_check iwl_request_firmware(struct iwl_priv *priv, bool first)
573{
574 const char *name_pre = priv->cfg->fw_name_pre;
39396085 575 char tag[8];
b08dfd04 576
39396085
JS		 577 if (first) {
578#ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
579 priv->fw_index = UCODE_EXPERIMENTAL_INDEX;
580 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
581 } else if (priv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
582#endif
b08dfd04 583 priv->fw_index = priv->cfg->ucode_api_max;
39396085
JS		 584 sprintf(tag, "%d", priv->fw_index);
585 } else {
b08dfd04 586 priv->fw_index--;
39396085
JS		 587 sprintf(tag, "%d", priv->fw_index);
588 }
b08dfd04
JB		 589
590 if (priv->fw_index < priv->cfg->ucode_api_min) {
591 IWL_ERR(priv, "no suitable firmware found!\n");
592 return -ENOENT;
593 }
594
39396085 595 sprintf(priv->firmware_name, "%s%s%s", name_pre, tag, ".ucode");
b08dfd04 596
39396085
JS		 597 IWL_DEBUG_INFO(priv, "attempting to load firmware %s'%s'\n",
598 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
599 ? "EXPERIMENTAL " : "",
b08dfd04
JB		 600 priv->firmware_name);
601
602 return request_firmware_nowait(THIS_MODULE, 1, priv->firmware_name,
26bfc0cf 603 bus(priv)->dev,
3599d39a 604 GFP_KERNEL, priv, iwl_ucode_callback);
b08dfd04
JB		 605}
606
0e9a44dc 607struct iwlagn_firmware_pieces {
c8ac61cf
JB		 608 const void *inst, *data, *init, *init_data, *wowlan_inst, *wowlan_data;
609 size_t inst_size, data_size, init_size, init_data_size,
610 wowlan_inst_size, wowlan_data_size;
0e9a44dc
JB		 611
612 u32 build;
b2e640d4
JB		 613
614 u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
615 u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
0e9a44dc
JB		 616};
617
618static int iwlagn_load_legacy_firmware(struct iwl_priv *priv,
619 const struct firmware *ucode_raw,
620 struct iwlagn_firmware_pieces *pieces)
621{
622 struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
623 u32 api_ver, hdr_size;
624 const u8 *src;
625
626 priv->ucode_ver = le32_to_cpu(ucode->ver);
627 api_ver = IWL_UCODE_API(priv->ucode_ver);
628
629 switch (api_ver) {
630 default:
f7d046f9
WYG		 631 hdr_size = 28;
632 if (ucode_raw->size < hdr_size) {
633 IWL_ERR(priv, "File size too small!\n");
634 return -EINVAL;
0e9a44dc 635 }
f7d046f9
WYG		 636 pieces->build = le32_to_cpu(ucode->u.v2.build);
637 pieces->inst_size = le32_to_cpu(ucode->u.v2.inst_size);
638 pieces->data_size = le32_to_cpu(ucode->u.v2.data_size);
639 pieces->init_size = le32_to_cpu(ucode->u.v2.init_size);
640 pieces->init_data_size = le32_to_cpu(ucode->u.v2.init_data_size);
f7d046f9
WYG		 641 src = ucode->u.v2.data;
642 break;
0e9a44dc
JB		 643 case 0:
644 case 1:
645 case 2:
646 hdr_size = 24;
647 if (ucode_raw->size < hdr_size) {
648 IWL_ERR(priv, "File size too small!\n");
649 return -EINVAL;
650 }
651 pieces->build = 0;
652 pieces->inst_size = le32_to_cpu(ucode->u.v1.inst_size);
653 pieces->data_size = le32_to_cpu(ucode->u.v1.data_size);
654 pieces->init_size = le32_to_cpu(ucode->u.v1.init_size);
655 pieces->init_data_size = le32_to_cpu(ucode->u.v1.init_data_size);
0e9a44dc
JB		 656 src = ucode->u.v1.data;
657 break;
658 }
659
660 /* Verify size of file vs. image size info in file's header */
661 if (ucode_raw->size != hdr_size + pieces->inst_size +
662 pieces->data_size + pieces->init_size +
1fc35276 663 pieces->init_data_size) {
0e9a44dc
JB		 664
665 IWL_ERR(priv,
666 "uCode file size %d does not match expected size\n",
667 (int)ucode_raw->size);
668 return -EINVAL;
669 }
670
671 pieces->inst = src;
672 src += pieces->inst_size;
673 pieces->data = src;
674 src += pieces->data_size;
675 pieces->init = src;
676 src += pieces->init_size;
677 pieces->init_data = src;
678 src += pieces->init_data_size;
0e9a44dc
JB		 679
680 return 0;
681}
682
dd7a2509
JB		 683static int iwlagn_load_firmware(struct iwl_priv *priv,
684 const struct firmware *ucode_raw,
685 struct iwlagn_firmware_pieces *pieces,
686 struct iwlagn_ucode_capabilities *capa)
687{
688 struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
689 struct iwl_ucode_tlv *tlv;
690 size_t len = ucode_raw->size;
691 const u8 *data;
48f20d35
EG		 692 int wanted_alternative = iwlagn_mod_params.wanted_ucode_alternative;
693 int tmp;
dd7a2509 694 u64 alternatives;
ad8d8333
WYG		 695 u32 tlv_len;
696 enum iwl_ucode_tlv_type tlv_type;
697 const u8 *tlv_data;
dd7a2509 698
ad8d8333
WYG		 699 if (len < sizeof(*ucode)) {
700 IWL_ERR(priv, "uCode has invalid length: %zd\n", len);
dd7a2509 701 return -EINVAL;
ad8d8333 702 }
dd7a2509 703
ad8d8333
WYG		 704 if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
705 IWL_ERR(priv, "invalid uCode magic: 0X%x\n",
706 le32_to_cpu(ucode->magic));
dd7a2509 707 return -EINVAL;
ad8d8333 708 }
dd7a2509
JB		 709
710 /*
711 * Check which alternatives are present, and "downgrade"
712 * when the chosen alternative is not present, warning
713 * the user when that happens. Some files may not have
714 * any alternatives, so don't warn in that case.
715 */
716 alternatives = le64_to_cpu(ucode->alternatives);
717 tmp = wanted_alternative;
718 if (wanted_alternative > 63)
719 wanted_alternative = 63;
720 while (wanted_alternative && !(alternatives & BIT(wanted_alternative)))
721 wanted_alternative--;
722 if (wanted_alternative && wanted_alternative != tmp)
723 IWL_WARN(priv,
724 "uCode alternative %d not available, choosing %d\n",
725 tmp, wanted_alternative);
726
727 priv->ucode_ver = le32_to_cpu(ucode->ver);
728 pieces->build = le32_to_cpu(ucode->build);
729 data = ucode->data;
730
731 len -= sizeof(*ucode);
732
704da534 733 while (len >= sizeof(*tlv)) {
dd7a2509 734 u16 tlv_alt;
dd7a2509
JB		 735
736 len -= sizeof(*tlv);
737 tlv = (void *)data;
738
739 tlv_len = le32_to_cpu(tlv->length);
740 tlv_type = le16_to_cpu(tlv->type);
741 tlv_alt = le16_to_cpu(tlv->alternative);
742 tlv_data = tlv->data;
743
ad8d8333
WYG		 744 if (len < tlv_len) {
745 IWL_ERR(priv, "invalid TLV len: %zd/%u\n",
746 len, tlv_len);
dd7a2509 747 return -EINVAL;
ad8d8333 748 }
dd7a2509
JB		 749 len -= ALIGN(tlv_len, 4);
750 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
751
752 /*
753 * Alternative 0 is always valid.
754 *
755 * Skip alternative TLVs that are not selected.
756 */
757 if (tlv_alt != 0 && tlv_alt != wanted_alternative)
758 continue;
759
760 switch (tlv_type) {
761 case IWL_UCODE_TLV_INST:
762 pieces->inst = tlv_data;
763 pieces->inst_size = tlv_len;
764 break;
765 case IWL_UCODE_TLV_DATA:
766 pieces->data = tlv_data;
767 pieces->data_size = tlv_len;
768 break;
769 case IWL_UCODE_TLV_INIT:
770 pieces->init = tlv_data;
771 pieces->init_size = tlv_len;
772 break;
773 case IWL_UCODE_TLV_INIT_DATA:
774 pieces->init_data = tlv_data;
775 pieces->init_data_size = tlv_len;
776 break;
777 case IWL_UCODE_TLV_BOOT:
1fc35276 778 IWL_ERR(priv, "Found unexpected BOOT ucode\n");
dd7a2509
JB		 779 break;
780 case IWL_UCODE_TLV_PROBE_MAX_LEN:
704da534
JB		 781 if (tlv_len != sizeof(u32))
782 goto invalid_tlv_len;
783 capa->max_probe_length =
ad8d8333 784 le32_to_cpup((__le32 *)tlv_data);
dd7a2509 785 break;
ece9c4ee
JB		 786 case IWL_UCODE_TLV_PAN:
787 if (tlv_len)
788 goto invalid_tlv_len;
3997ff39
JB		 789 capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
790 break;
791 case IWL_UCODE_TLV_FLAGS:
792 /* must be at least one u32 */
793 if (tlv_len < sizeof(u32))
794 goto invalid_tlv_len;
795 /* and a proper number of u32s */
796 if (tlv_len % sizeof(u32))
797 goto invalid_tlv_len;
798 /*
799 * This driver only reads the first u32 as
800 * right now no more features are defined,
801 * if that changes then either the driver
802 * will not work with the new firmware, or
803 * it'll not take advantage of new features.
804 */
805 capa->flags = le32_to_cpup((__le32 *)tlv_data);
ece9c4ee 806 break;
b2e640d4 807 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
704da534
JB		 808 if (tlv_len != sizeof(u32))
809 goto invalid_tlv_len;
810 pieces->init_evtlog_ptr =
ad8d8333 811 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 812 break;
813 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
704da534
JB		 814 if (tlv_len != sizeof(u32))
815 goto invalid_tlv_len;
816 pieces->init_evtlog_size =
ad8d8333 817 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 818 break;
819 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
704da534
JB		 820 if (tlv_len != sizeof(u32))
821 goto invalid_tlv_len;
822 pieces->init_errlog_ptr =
ad8d8333 823 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 824 break;
825 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
704da534
JB		 826 if (tlv_len != sizeof(u32))
827 goto invalid_tlv_len;
828 pieces->inst_evtlog_ptr =
ad8d8333 829 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 830 break;
831 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
704da534
JB		 832 if (tlv_len != sizeof(u32))
833 goto invalid_tlv_len;
834 pieces->inst_evtlog_size =
ad8d8333 835 le32_to_cpup((__le32 *)tlv_data);
b2e640d4
JB		 836 break;
837 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
704da534
JB		 838 if (tlv_len != sizeof(u32))
839 goto invalid_tlv_len;
840 pieces->inst_errlog_ptr =
ad8d8333 841 le32_to_cpup((__le32 *)tlv_data);
b2e640d4 842 break;
c8312fac
WYG		 843 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
844 if (tlv_len)
704da534
JB		 845 goto invalid_tlv_len;
846 priv->enhance_sensitivity_table = true;
c8312fac 847 break;
c8ac61cf
JB		 848 case IWL_UCODE_TLV_WOWLAN_INST:
849 pieces->wowlan_inst = tlv_data;
850 pieces->wowlan_inst_size = tlv_len;
851 break;
852 case IWL_UCODE_TLV_WOWLAN_DATA:
853 pieces->wowlan_data = tlv_data;
854 pieces->wowlan_data_size = tlv_len;
855 break;
6a822d06 856 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
704da534
JB		 857 if (tlv_len != sizeof(u32))
858 goto invalid_tlv_len;
859 capa->standard_phy_calibration_size =
6a822d06
WYG		 860 le32_to_cpup((__le32 *)tlv_data);
861 break;
dd7a2509 862 default:
6fc3ba99 863 IWL_DEBUG_INFO(priv, "unknown TLV: %d\n", tlv_type);
dd7a2509
JB		 864 break;
865 }
866 }
867
ad8d8333
WYG		 868 if (len) {
869 IWL_ERR(priv, "invalid TLV after parsing: %zd\n", len);
870 iwl_print_hex_dump(priv, IWL_DL_FW, (u8 *)data, len);
704da534 871 return -EINVAL;
ad8d8333 872 }
dd7a2509 873
704da534
JB		 874 return 0;
875
876 invalid_tlv_len:
877 IWL_ERR(priv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
878 iwl_print_hex_dump(priv, IWL_DL_FW, tlv_data, tlv_len);
879
880 return -EINVAL;
dd7a2509
JB		 881}
882
b481de9c 883/**
b08dfd04 884 * iwl_ucode_callback - callback when firmware was loaded
b481de9c 885 *
b08dfd04
JB		 886 * If loaded successfully, copies the firmware into buffers
887 * for the card to fetch (via DMA).
b481de9c 888 */
b08dfd04 889static void iwl_ucode_callback(const struct firmware *ucode_raw, void *context)
b481de9c 890{
b08dfd04 891 struct iwl_priv *priv = context;
cc0f555d 892 struct iwl_ucode_header *ucode;
0e9a44dc
JB		 893 int err;
894 struct iwlagn_firmware_pieces pieces;
a0987a8d 895 const unsigned int api_max = priv->cfg->ucode_api_max;
5d7969bf 896 unsigned int api_ok = priv->cfg->ucode_api_ok;
a0987a8d 897 const unsigned int api_min = priv->cfg->ucode_api_min;
0e9a44dc 898 u32 api_ver;
3e4de761 899 char buildstr[25];
0e9a44dc 900 u32 build;
dd7a2509
JB		 901 struct iwlagn_ucode_capabilities ucode_capa = {
902 .max_probe_length = 200,
6a822d06 903 .standard_phy_calibration_size =
642454cc 904 IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE,
dd7a2509 905 };
0e9a44dc 906
5d7969bf
JB		 907 if (!api_ok)
908 api_ok = api_max;
909
0e9a44dc 910 memset(&pieces, 0, sizeof(pieces));
b481de9c 911
b08dfd04 912 if (!ucode_raw) {
5d7969bf 913 if (priv->fw_index <= api_ok)
39396085
JS		 914 IWL_ERR(priv,
915 "request for firmware file '%s' failed.\n",
916 priv->firmware_name);
b08dfd04 917 goto try_again;
b481de9c
ZY		 918 }
919
b08dfd04
JB		 920 IWL_DEBUG_INFO(priv, "Loaded firmware file '%s' (%zd bytes).\n",
921 priv->firmware_name, ucode_raw->size);
b481de9c 922
22adba2a
JB		 923 /* Make sure that we got at least the API version number */
924 if (ucode_raw->size < 4) {
15b1687c 925 IWL_ERR(priv, "File size way too small!\n");
b08dfd04 926 goto try_again;
b481de9c
ZY		 927 }
928
929 /* Data from ucode file: header followed by uCode images */
cc0f555d 930 ucode = (struct iwl_ucode_header *)ucode_raw->data;
b481de9c 931
0e9a44dc
JB		 932 if (ucode->ver)
933 err = iwlagn_load_legacy_firmware(priv, ucode_raw, &pieces);
934 else
dd7a2509
JB		 935 err = iwlagn_load_firmware(priv, ucode_raw, &pieces,
936 &ucode_capa);
22adba2a 937
0e9a44dc
JB		 938 if (err)
939 goto try_again;
b481de9c 940
a0987a8d 941 api_ver = IWL_UCODE_API(priv->ucode_ver);
0e9a44dc 942 build = pieces.build;
a0987a8d 943
0e9a44dc
JB		 944 /*
945 * api_ver should match the api version forming part of the
946 * firmware filename ... but we don't check for that and only rely
947 * on the API version read from firmware header from here on forward
948 */
65cccfb0
WYG		 949 /* no api version check required for experimental uCode */
950 if (priv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
951 if (api_ver < api_min || api_ver > api_max) {
952 IWL_ERR(priv,
953 "Driver unable to support your firmware API. "
954 "Driver supports v%u, firmware is v%u.\n",
955 api_max, api_ver);
956 goto try_again;
957 }
b08dfd04 958
5d7969bf
JB		 959 if (api_ver < api_ok) {
960 if (api_ok != api_max)
961 IWL_ERR(priv, "Firmware has old API version, "
962 "expected v%u through v%u, got v%u.\n",
963 api_ok, api_max, api_ver);
964 else
965 IWL_ERR(priv, "Firmware has old API version, "
966 "expected v%u, got v%u.\n",
967 api_max, api_ver);
968 IWL_ERR(priv, "New firmware can be obtained from "
969 "http://www.intellinuxwireless.org/.\n");
970 }
65cccfb0 971 }
a0987a8d 972
3e4de761 973 if (build)
39396085
JS		 974 sprintf(buildstr, " build %u%s", build,
975 (priv->fw_index == UCODE_EXPERIMENTAL_INDEX)
976 ? " (EXP)" : "");
3e4de761
JB		 977 else
978 buildstr[0] = '\0';
979
980 IWL_INFO(priv, "loaded firmware version %u.%u.%u.%u%s\n",
981 IWL_UCODE_MAJOR(priv->ucode_ver),
982 IWL_UCODE_MINOR(priv->ucode_ver),
983 IWL_UCODE_API(priv->ucode_ver),
984 IWL_UCODE_SERIAL(priv->ucode_ver),
985 buildstr);
a0987a8d 986
5ebeb5a6
RC		 987 snprintf(priv->hw->wiphy->fw_version,
988 sizeof(priv->hw->wiphy->fw_version),
3e4de761 989 "%u.%u.%u.%u%s",
5ebeb5a6
RC		 990 IWL_UCODE_MAJOR(priv->ucode_ver),
991 IWL_UCODE_MINOR(priv->ucode_ver),
992 IWL_UCODE_API(priv->ucode_ver),
3e4de761
JB		 993 IWL_UCODE_SERIAL(priv->ucode_ver),
994 buildstr);
b481de9c 995
b08dfd04
JB		 996 /*
997 * For any of the failures below (before allocating pci memory)
998 * we will try to load a version with a smaller API -- maybe the
999 * user just got a corrupted version of the latest API.
1000 */
1001
0e9a44dc
JB		 1002 IWL_DEBUG_INFO(priv, "f/w package hdr ucode version raw = 0x%x\n",
1003 priv->ucode_ver);
1004 IWL_DEBUG_INFO(priv, "f/w package hdr runtime inst size = %Zd\n",
1005 pieces.inst_size);
1006 IWL_DEBUG_INFO(priv, "f/w package hdr runtime data size = %Zd\n",
1007 pieces.data_size);
1008 IWL_DEBUG_INFO(priv, "f/w package hdr init inst size = %Zd\n",
1009 pieces.init_size);
1010 IWL_DEBUG_INFO(priv, "f/w package hdr init data size = %Zd\n",
1011 pieces.init_data_size);
b481de9c
ZY		 1012
1013 /* Verify that uCode images will fit in card's SRAM */
d6189124 1014 if (pieces.inst_size > hw_params(priv).max_inst_size) {
0e9a44dc
JB		 1015 IWL_ERR(priv, "uCode instr len %Zd too large to fit in\n",
1016 pieces.inst_size);
b08dfd04 1017 goto try_again;
b481de9c
ZY		 1018 }
1019
d6189124 1020 if (pieces.data_size > hw_params(priv).max_data_size) {
0e9a44dc
JB		 1021 IWL_ERR(priv, "uCode data len %Zd too large to fit in\n",
1022 pieces.data_size);
b08dfd04 1023 goto try_again;
b481de9c 1024 }
0e9a44dc 1025
d6189124 1026 if (pieces.init_size > hw_params(priv).max_inst_size) {
0e9a44dc
JB		 1027 IWL_ERR(priv, "uCode init instr len %Zd too large to fit in\n",
1028 pieces.init_size);
b08dfd04 1029 goto try_again;
b481de9c 1030 }
0e9a44dc 1031
d6189124 1032 if (pieces.init_data_size > hw_params(priv).max_data_size) {
0e9a44dc
JB		 1033 IWL_ERR(priv, "uCode init data len %Zd too large to fit in\n",
1034 pieces.init_data_size);
b08dfd04 1035 goto try_again;
b481de9c 1036 }
0e9a44dc 1037
b481de9c
ZY		 1038 /* Allocate ucode buffers for card's bus-master loading ... */
1039
1040 /* Runtime instructions and 2 copies of data:
1041 * 1) unmodified from disk
1042 * 2) backup cache for save/restore during power-downs */
3599d39a 1043 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.code,
dbf28e21
JB		 1044 pieces.inst, pieces.inst_size))
1045 goto err_pci_alloc;
3599d39a 1046 if (iwl_alloc_fw_desc(priv, &priv->ucode_rt.data,
dbf28e21 1047 pieces.data, pieces.data_size))
1f304e4e
ZY		 1048 goto err_pci_alloc;
1049
b481de9c 1050 /* Initialization instructions and data */
0e9a44dc 1051 if (pieces.init_size && pieces.init_data_size) {
3599d39a 1052 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.code,
dbf28e21
JB		 1053 pieces.init, pieces.init_size))
1054 goto err_pci_alloc;
3599d39a 1055 if (iwl_alloc_fw_desc(priv, &priv->ucode_init.data,
dbf28e21 1056 pieces.init_data, pieces.init_data_size))
90e759d1
TW		 1057 goto err_pci_alloc;
1058 }
b481de9c 1059
c8ac61cf
JB		 1060 /* WoWLAN instructions and data */
1061 if (pieces.wowlan_inst_size && pieces.wowlan_data_size) {
1062 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.code,
1063 pieces.wowlan_inst,
1064 pieces.wowlan_inst_size))
1065 goto err_pci_alloc;
1066 if (iwl_alloc_fw_desc(priv, &priv->ucode_wowlan.data,
1067 pieces.wowlan_data,
1068 pieces.wowlan_data_size))
1069 goto err_pci_alloc;
1070 }
1071
b2e640d4
JB		 1072 /* Now that we can no longer fail, copy information */
1073
1074 /*
1075 * The (size - 16) / 12 formula is based on the information recorded
1076 * for each event, which is of mode 1 (including timestamp) for all
1077 * new microcodes that include this information.
1078 */
898ed67b 1079 priv->init_evtlog_ptr = pieces.init_evtlog_ptr;
b2e640d4 1080 if (pieces.init_evtlog_size)
898ed67b 1081 priv->init_evtlog_size = (pieces.init_evtlog_size - 16)/12;
b2e640d4 1082 else
898ed67b 1083 priv->init_evtlog_size =
7cb1b088 1084 priv->cfg->base_params->max_event_log_size;
898ed67b
WYG		 1085 priv->init_errlog_ptr = pieces.init_errlog_ptr;
1086 priv->inst_evtlog_ptr = pieces.inst_evtlog_ptr;
b2e640d4 1087 if (pieces.inst_evtlog_size)
898ed67b 1088 priv->inst_evtlog_size = (pieces.inst_evtlog_size - 16)/12;
b2e640d4 1089 else
898ed67b 1090 priv->inst_evtlog_size =
7cb1b088 1091 priv->cfg->base_params->max_event_log_size;
898ed67b 1092 priv->inst_errlog_ptr = pieces.inst_errlog_ptr;
b2e640d4 1093
d2690c0d
JB		 1094 priv->new_scan_threshold_behaviour =
1095 !!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWSCAN);
1096
4d2a5d0e
JB		 1097 if (!(priv->cfg->sku & EEPROM_SKU_CAP_IPAN_ENABLE))
1098 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_PAN;
c10afb6e 1099
c6baf7fb
JB		 1100 /*
1101 * if not PAN, then don't support P2P -- might be a uCode
1102 * packaging bug or due to the eeprom check above
1103 */
1104 if (!(ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN))
1105 ucode_capa.flags &= ~IWL_UCODE_TLV_FLAGS_P2P;
1106
4d2a5d0e
JB		 1107 if (ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PAN) {
1108 priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN;
cefeaa5f 1109 priv->shrd->cmd_queue = IWL_IPAN_CMD_QUEUE_NUM;
4d2a5d0e
JB		 1110 } else {
1111 priv->sta_key_max_num = STA_KEY_MAX_NUM;
cefeaa5f 1112 priv->shrd->cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM;
4d2a5d0e 1113 }
17445b8c 1114
6a822d06
WYG		 1115 /*
1116 * figure out the offset of chain noise reset and gain commands
1117 * base on the size of standard phy calibration commands table size
1118 */
1119 if (ucode_capa.standard_phy_calibration_size >
1120 IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1121 ucode_capa.standard_phy_calibration_size =
1122 IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1123
898ed67b 1124 priv->phy_calib_chain_noise_reset_cmd =
6a822d06 1125 ucode_capa.standard_phy_calibration_size;
898ed67b 1126 priv->phy_calib_chain_noise_gain_cmd =
6a822d06
WYG		 1127 ucode_capa.standard_phy_calibration_size + 1;
1128
4d2a5d0e
JB		 1129 /* initialize all valid contexts */
1130 iwl_init_context(priv, ucode_capa.flags);
1131
b08dfd04
JB		 1132 /**************************************************
1133 * This is still part of probe() in a sense...
1134 *
1135 * 9. Setup and register with mac80211 and debugfs
1136 **************************************************/
ade4c649 1137 err = iwlagn_mac_setup_register(priv, &ucode_capa);
b08dfd04
JB		 1138 if (err)
1139 goto out_unbind;
1140
1141 err = iwl_dbgfs_register(priv, DRV_NAME);
1142 if (err)
1143 IWL_ERR(priv, "failed to create debugfs files. Ignoring error: %d\n", err);
1144
b481de9c
ZY		 1145 /* We have our copies now, allow OS release its copies */
1146 release_firmware(ucode_raw);
898ed67b 1147 complete(&priv->firmware_loading_complete);
b08dfd04
JB		 1148 return;
1149
1150 try_again:
1151 /* try next, if any */
1152 if (iwl_request_firmware(priv, false))
1153 goto out_unbind;
1154 release_firmware(ucode_raw);
1155 return;
b481de9c
ZY		 1156
1157 err_pci_alloc:
15b1687c 1158 IWL_ERR(priv, "failed to allocate pci memory\n");
3599d39a 1159 iwl_dealloc_ucode(priv);
b08dfd04 1160 out_unbind:
898ed67b 1161 complete(&priv->firmware_loading_complete);
26bfc0cf 1162 device_release_driver(bus(priv)->dev);
b481de9c 1163 release_firmware(ucode_raw);
b481de9c
ZY		 1164}
1165
0975cc8f
WYG		 1166static void iwl_rf_kill_ct_config(struct iwl_priv *priv)
1167{
1168 struct iwl_ct_kill_config cmd;
1169 struct iwl_ct_kill_throttling_config adv_cmd;
1170 unsigned long flags;
1171 int ret = 0;
1172
10b15e6f 1173 spin_lock_irqsave(&priv->shrd->lock, flags);
83ed9015 1174 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
0975cc8f 1175 CSR_UCODE_DRV_GP1_REG_BIT_CT_KILL_EXIT);
10b15e6f 1176 spin_unlock_irqrestore(&priv->shrd->lock, flags);
0975cc8f
WYG		 1177 priv->thermal_throttle.ct_kill_toggle = false;
1178
7cb1b088 1179 if (priv->cfg->base_params->support_ct_kill_exit) {
0975cc8f 1180 adv_cmd.critical_temperature_enter =
d6189124 1181 cpu_to_le32(hw_params(priv).ct_kill_threshold);
0975cc8f 1182 adv_cmd.critical_temperature_exit =
d6189124 1183 cpu_to_le32(hw_params(priv).ct_kill_exit_threshold);
0975cc8f 1184
e6bb4c9c 1185 ret = iwl_trans_send_cmd_pdu(trans(priv),
e419d62d
EG		 1186 REPLY_CT_KILL_CONFIG_CMD,
1187 CMD_SYNC, sizeof(adv_cmd), &adv_cmd);
0975cc8f
WYG		 1188 if (ret)
1189 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1190 else
1191 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
d6189124
EG		 1192 "succeeded, critical temperature enter is %d,"
1193 "exit is %d\n",
1194 hw_params(priv).ct_kill_threshold,
1195 hw_params(priv).ct_kill_exit_threshold);
0975cc8f
WYG		 1196 } else {
1197 cmd.critical_temperature_R =
d6189124 1198 cpu_to_le32(hw_params(priv).ct_kill_threshold);
0975cc8f 1199
e6bb4c9c 1200 ret = iwl_trans_send_cmd_pdu(trans(priv),
e419d62d
EG		 1201 REPLY_CT_KILL_CONFIG_CMD,
1202 CMD_SYNC, sizeof(cmd), &cmd);
0975cc8f
WYG		 1203 if (ret)
1204 IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n");
1205 else
1206 IWL_DEBUG_INFO(priv, "REPLY_CT_KILL_CONFIG_CMD "
d6189124
EG		 1207 "succeeded, "
1208 "critical temperature is %d\n",
1209 hw_params(priv).ct_kill_threshold);
0975cc8f
WYG		 1210 }
1211}
1212
6d6a1afd
SZ		 1213static int iwlagn_send_calib_cfg_rt(struct iwl_priv *priv, u32 cfg)
1214{
1215 struct iwl_calib_cfg_cmd calib_cfg_cmd;
1216 struct iwl_host_cmd cmd = {
1217 .id = CALIBRATION_CFG_CMD,
3fa50738
JB		 1218 .len = { sizeof(struct iwl_calib_cfg_cmd), },
1219 .data = { &calib_cfg_cmd, },
6d6a1afd
SZ		 1220 };
1221
1222 memset(&calib_cfg_cmd, 0, sizeof(calib_cfg_cmd));
af4dc88c 1223 calib_cfg_cmd.ucd_calib_cfg.once.is_enable = IWL_CALIB_RT_CFG_ALL;
7cb1b088 1224 calib_cfg_cmd.ucd_calib_cfg.once.start = cpu_to_le32(cfg);
6d6a1afd 1225
e6bb4c9c 1226 return iwl_trans_send_cmd(trans(priv), &cmd);
6d6a1afd
SZ		 1227}
1228
1229
e505c433
WYG		 1230static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant)
1231{
1232 struct iwl_tx_ant_config_cmd tx_ant_cmd = {
1233 .valid = cpu_to_le32(valid_tx_ant),
1234 };
1235
1236 if (IWL_UCODE_API(priv->ucode_ver) > 1) {
1237 IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant);
e6bb4c9c 1238 return iwl_trans_send_cmd_pdu(trans(priv),
e505c433
WYG		 1239 TX_ANT_CONFIGURATION_CMD,
1240 CMD_SYNC,
1241 sizeof(struct iwl_tx_ant_config_cmd),
1242 &tx_ant_cmd);
1243 } else {
1244 IWL_DEBUG_HC(priv, "TX_ANT_CONFIGURATION_CMD not supported\n");
1245 return -EOPNOTSUPP;
1246 }
1247}
1248
b481de9c 1249/**
4a4a9e81 1250 * iwl_alive_start - called after REPLY_ALIVE notification received
b481de9c 1251 * from protocol/runtime uCode (initialization uCode's
4a4a9e81 1252 * Alive gets handled by iwl_init_alive_start()).
b481de9c 1253 */
4613e72d 1254int iwl_alive_start(struct iwl_priv *priv)
b481de9c 1255{
57aab75a 1256 int ret = 0;
246ed355 1257 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
b481de9c 1258
1a361cd8 1259 /*TODO: this should go to the transport layer */
6bb78847 1260 iwl_reset_ict(trans(priv));
b481de9c 1261
ca7966c8 1262 IWL_DEBUG_INFO(priv, "Runtime Alive received.\n");
6d6a1afd 1263
5b9f8cd3 1264 /* After the ALIVE response, we can send host commands to the uCode */
63013ae3 1265 set_bit(STATUS_ALIVE, &priv->shrd->status);
b481de9c 1266
22de94de
SG		 1267 /* Enable watchdog to monitor the driver tx queues */
1268 iwl_setup_watchdog(priv);
b74e31a9 1269
845a9c0d 1270 if (iwl_is_rfkill(priv->shrd))
ca7966c8 1271 return -ERFKILL;
b481de9c 1272
bc795df1 1273 /* download priority table before any calibration request */
7cb1b088
WYG		 1274 if (priv->cfg->bt_params &&
1275 priv->cfg->bt_params->advanced_bt_coexist) {
f7322f8f 1276 /* Configure Bluetooth device coexistence support */
207ecc5e
MV		 1277 if (priv->cfg->bt_params->bt_sco_disable)
1278 priv->bt_enable_pspoll = false;
1279 else
1280 priv->bt_enable_pspoll = true;
1281
f7322f8f
WYG		 1282 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
1283 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
1284 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
e55b517c 1285 iwlagn_send_advance_bt_config(priv);
f7322f8f 1286 priv->bt_valid = IWLAGN_BT_VALID_ENABLE_FLAGS;
207ecc5e
MV		 1287 priv->cur_rssi_ctx = NULL;
1288
a5901cbb 1289 iwlagn_send_prio_tbl(priv);
f7322f8f
WYG		 1290
1291 /* FIXME: w/a to force change uCode BT state machine */
ca7966c8
JB		 1292 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_OPEN,
1293 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1294 if (ret)
1295 return ret;
1296 ret = iwlagn_send_bt_env(priv, IWL_BT_COEX_ENV_CLOSE,
1297 BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
1298 if (ret)
1299 return ret;
e55b517c
WYG		 1300 } else {
1301 /*
1302 * default is 2-wire BT coexexistence support
1303 */
1304 iwl_send_bt_config(priv);
f7322f8f 1305 }
e55b517c 1306
d6189124
EG		 1307 if (hw_params(priv).calib_rt_cfg)
1308 iwlagn_send_calib_cfg_rt(priv,
1309 hw_params(priv).calib_rt_cfg);
bc795df1 1310
36d6825b 1311 ieee80211_wake_queues(priv->hw);
b481de9c 1312
470ab2dd 1313 priv->active_rate = IWL_RATES_MASK;
b481de9c 1314
2f748dec 1315 /* Configure Tx antenna selection based on H/W config */
e3f10cea 1316 iwlagn_send_tx_ant_config(priv, priv->cfg->valid_tx_ant);
2f748dec 1317
57210f7c 1318 if (iwl_is_associated_ctx(ctx) && !priv->shrd->wowlan) {
c1adf9fb 1319 struct iwl_rxon_cmd *active_rxon =
246ed355 1320 (struct iwl_rxon_cmd *)&ctx->active;
019fb97d 1321 /* apply any changes in staging */
246ed355 1322 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK;
b481de9c
ZY		 1323 active_rxon->filter_flags &= ~RXON_FILTER_ASSOC_MSK;
1324 } else {
d0fe478c 1325 struct iwl_rxon_context *tmp;
b481de9c 1326 /* Initialize our rx_config data */
d0fe478c
JB		 1327 for_each_context(priv, tmp)
1328 iwl_connection_init_rx_config(priv, tmp);
45823531 1329
e3f10cea 1330 iwlagn_set_rxon_chain(priv, ctx);
b481de9c
ZY		 1331 }
1332
57210f7c 1333 if (!priv->shrd->wowlan) {
c8ac61cf
JB		 1334 /* WoWLAN ucode will not reply in the same way, skip it */
1335 iwl_reset_run_time_calib(priv);
1336 }
4a4a9e81 1337
63013ae3 1338 set_bit(STATUS_READY, &priv->shrd->status);
9e2e7422 1339
b481de9c 1340 /* Configure the adapter for unassociated operation */
805a3b81 1341 ret = iwlagn_commit_rxon(priv, ctx);
ca7966c8
JB		 1342 if (ret)
1343 return ret;
b481de9c
ZY		 1344
1345 /* At this point, the NIC is initialized and operational */
47f4a587 1346 iwl_rf_kill_ct_config(priv);
5a66926a 1347
e1623446 1348 IWL_DEBUG_INFO(priv, "ALIVE processing complete.\n");
c46fbefa 1349
ca7966c8 1350 return iwl_power_update_mode(priv, true);
b481de9c
ZY		 1351}
1352
4e39317d 1353static void iwl_cancel_deferred_work(struct iwl_priv *priv);
b481de9c 1354
5b9f8cd3 1355static void __iwl_down(struct iwl_priv *priv)
b481de9c 1356{
22dd2fd2 1357 int exit_pending;
b481de9c 1358
e1623446 1359 IWL_DEBUG_INFO(priv, DRV_NAME " is going down\n");
b481de9c 1360
d745d472
SG		 1361 iwl_scan_cancel_timeout(priv, 200);
1362
c6baf7fb
JB		 1363 /*
1364 * If active, scanning won't cancel it, so say it expired.
1365 * No race since we hold the mutex here and a new one
1366 * can't come in at this time.
1367 */
1368 ieee80211_remain_on_channel_expired(priv->hw);
1369
63013ae3
EG		 1370 exit_pending =
1371 test_and_set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1372
b62177a0
SG		 1373 /* Stop TX queues watchdog. We need to have STATUS_EXIT_PENDING bit set
1374 * to prevent rearm timer */
22de94de 1375 del_timer_sync(&priv->watchdog);
b62177a0 1376
dcef732c 1377 iwl_clear_ucode_stations(priv, NULL);
a194e324 1378 iwl_dealloc_bcast_stations(priv);
db125c78 1379 iwl_clear_driver_stations(priv);
b481de9c 1380
a1174138 1381 /* reset BT coex data */
da5dbb97 1382 priv->bt_status = 0;
207ecc5e
MV		 1383 priv->cur_rssi_ctx = NULL;
1384 priv->bt_is_sco = 0;
7cb1b088
WYG		 1385 if (priv->cfg->bt_params)
1386 priv->bt_traffic_load =
1387 priv->cfg->bt_params->bt_init_traffic_load;
1388 else
1389 priv->bt_traffic_load = 0;
bee008b7
WYG		 1390 priv->bt_full_concurrent = false;
1391 priv->bt_ci_compliance = 0;
a1174138 1392
b481de9c
ZY		 1393 /* Wipe out the EXIT_PENDING status bit if we are not actually
1394 * exiting the module */
1395 if (!exit_pending)
63013ae3 1396 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1397
859cfb0a 1398 if (priv->mac80211_registered)
b481de9c
ZY		 1399 ieee80211_stop_queues(priv->hw);
1400
909e9b23
EG		 1401 iwl_trans_stop_device(trans(priv));
1402
1a10f433 1403 /* Clear out all status bits but a few that are stable across reset */
63013ae3
EG		 1404 priv->shrd->status &=
1405 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status) <<
b481de9c 1406 STATUS_RF_KILL_HW |
63013ae3 1407 test_bit(STATUS_GEO_CONFIGURED, &priv->shrd->status) <<
9788864e 1408 STATUS_GEO_CONFIGURED |
63013ae3 1409 test_bit(STATUS_FW_ERROR, &priv->shrd->status) <<
052ec3f1 1410 STATUS_FW_ERROR |
63013ae3 1411 test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) <<
052ec3f1 1412 STATUS_EXIT_PENDING;
b481de9c 1413
77834543 1414 dev_kfree_skb(priv->beacon_skb);
12e934dc 1415 priv->beacon_skb = NULL;
b481de9c
ZY		 1416}
1417
5b9f8cd3 1418static void iwl_down(struct iwl_priv *priv)
b481de9c 1419{
6ac2f839 1420 mutex_lock(&priv->shrd->mutex);
5b9f8cd3 1421 __iwl_down(priv);
6ac2f839 1422 mutex_unlock(&priv->shrd->mutex);
b24d22b1 1423
4e39317d 1424 iwl_cancel_deferred_work(priv);
b481de9c
ZY		 1425}
1426
1427#define MAX_HW_RESTARTS 5
1428
5b9f8cd3 1429static int __iwl_up(struct iwl_priv *priv)
b481de9c 1430{
a194e324 1431 struct iwl_rxon_context *ctx;
57aab75a 1432 int ret;
b481de9c 1433
6ac2f839 1434 lockdep_assert_held(&priv->shrd->mutex);
ca7966c8 1435
63013ae3 1436 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
39aadf8c 1437 IWL_WARN(priv, "Exit pending; will not bring the NIC up\n");
b481de9c
ZY		 1438 return -EIO;
1439 }
1440
a194e324 1441 for_each_context(priv, ctx) {
a30e3112 1442 ret = iwlagn_alloc_bcast_station(priv, ctx);
a194e324
JB		 1443 if (ret) {
1444 iwl_dealloc_bcast_stations(priv);
1445 return ret;
1446 }
1447 }
2c810ccd 1448
ca7966c8
JB		 1449 ret = iwlagn_run_init_ucode(priv);
1450 if (ret) {
1451 IWL_ERR(priv, "Failed to run INIT ucode: %d\n", ret);
1452 goto error;
1453 }
b481de9c 1454
ca7966c8 1455 ret = iwlagn_load_ucode_wait_alive(priv,
dbf28e21 1456 &priv->ucode_rt,
872907bb 1457 IWL_UCODE_REGULAR);
ca7966c8
JB		 1458 if (ret) {
1459 IWL_ERR(priv, "Failed to start RT ucode: %d\n", ret);
1460 goto error;
b481de9c
ZY		 1461 }
1462
ca7966c8
JB		 1463 ret = iwl_alive_start(priv);
1464 if (ret)
1465 goto error;
1466 return 0;
1467
1468 error:
63013ae3 1469 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
5b9f8cd3 1470 __iwl_down(priv);
63013ae3 1471 clear_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
b481de9c 1472
ca7966c8
JB		 1473 IWL_ERR(priv, "Unable to initialize device.\n");
1474 return ret;
b481de9c
ZY		 1475}
1476
1477
1478/*****************************************************************************
1479 *
1480 * Workqueue callbacks
1481 *
1482 *****************************************************************************/
1483
16e727e8
EG		 1484static void iwl_bg_run_time_calib_work(struct work_struct *work)
1485{
1486 struct iwl_priv *priv = container_of(work, struct iwl_priv,
1487 run_time_calib_work);
1488
6ac2f839 1489 mutex_lock(&priv->shrd->mutex);
16e727e8 1490
63013ae3
EG		 1491 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
1492 test_bit(STATUS_SCANNING, &priv->shrd->status)) {
6ac2f839 1493 mutex_unlock(&priv->shrd->mutex);
16e727e8
EG		 1494 return;
1495 }
1496
1497 if (priv->start_calib) {
0da0e5bf
JB		 1498 iwl_chain_noise_calibration(priv);
1499 iwl_sensitivity_calibration(priv);
16e727e8
EG		 1500 }
1501
6ac2f839 1502 mutex_unlock(&priv->shrd->mutex);
16e727e8
EG		 1503}
1504
e43e85c4
JB		 1505static void iwlagn_prepare_restart(struct iwl_priv *priv)
1506{
1507 struct iwl_rxon_context *ctx;
1508 bool bt_full_concurrent;
1509 u8 bt_ci_compliance;
1510 u8 bt_load;
1511 u8 bt_status;
207ecc5e 1512 bool bt_is_sco;
e43e85c4 1513
6ac2f839 1514 lockdep_assert_held(&priv->shrd->mutex);
e43e85c4
JB		 1515
1516 for_each_context(priv, ctx)
1517 ctx->vif = NULL;
1518 priv->is_open = 0;
1519
1520 /*
1521 * __iwl_down() will clear the BT status variables,
1522 * which is correct, but when we restart we really
1523 * want to keep them so restore them afterwards.
1524 *
1525 * The restart process will later pick them up and
1526 * re-configure the hw when we reconfigure the BT
1527 * command.
1528 */
1529 bt_full_concurrent = priv->bt_full_concurrent;
1530 bt_ci_compliance = priv->bt_ci_compliance;
1531 bt_load = priv->bt_traffic_load;
1532 bt_status = priv->bt_status;
207ecc5e 1533 bt_is_sco = priv->bt_is_sco;
e43e85c4
JB		 1534
1535 __iwl_down(priv);
1536
1537 priv->bt_full_concurrent = bt_full_concurrent;
1538 priv->bt_ci_compliance = bt_ci_compliance;
1539 priv->bt_traffic_load = bt_load;
1540 priv->bt_status = bt_status;
207ecc5e 1541 priv->bt_is_sco = bt_is_sco;
e43e85c4
JB		 1542}
1543
5b9f8cd3 1544static void iwl_bg_restart(struct work_struct *data)
b481de9c 1545{
c79dd5b5 1546 struct iwl_priv *priv = container_of(data, struct iwl_priv, restart);
b481de9c 1547
63013ae3 1548 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
b481de9c
ZY		 1549 return;
1550
63013ae3 1551 if (test_and_clear_bit(STATUS_FW_ERROR, &priv->shrd->status)) {
6ac2f839 1552 mutex_lock(&priv->shrd->mutex);
e43e85c4 1553 iwlagn_prepare_restart(priv);
6ac2f839 1554 mutex_unlock(&priv->shrd->mutex);
a1174138 1555 iwl_cancel_deferred_work(priv);
19cc1087
JB		 1556 ieee80211_restart_hw(priv->hw);
1557 } else {
ca7966c8 1558 WARN_ON(1);
19cc1087 1559 }
b481de9c
ZY		 1560}
1561
b481de9c
ZY		 1562/*****************************************************************************
1563 *
1564 * mac80211 entry point functions
1565 *
1566 *****************************************************************************/
1567
0fd09502
JB		 1568static const struct ieee80211_iface_limit iwlagn_sta_ap_limits[] = {
1569 {
1570 .max = 1,
1571 .types = BIT(NL80211_IFTYPE_STATION),
1572 },
1573 {
1574 .max = 1,
1575 .types = BIT(NL80211_IFTYPE_AP),
1576 },
1577};
1578
1579static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = {
1580 {
1581 .max = 2,
1582 .types = BIT(NL80211_IFTYPE_STATION),
1583 },
1584};
1585
1586static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = {
1587 {
1588 .max = 1,
1589 .types = BIT(NL80211_IFTYPE_STATION),
1590 },
1591 {
1592 .max = 1,
1593 .types = BIT(NL80211_IFTYPE_P2P_GO) |
1594 BIT(NL80211_IFTYPE_AP),
1595 },
1596};
1597
1598static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = {
1599 {
1600 .max = 2,
1601 .types = BIT(NL80211_IFTYPE_STATION),
1602 },
1603 {
1604 .max = 1,
1605 .types = BIT(NL80211_IFTYPE_P2P_CLIENT),
1606 },
1607};
1608
1609static const struct ieee80211_iface_combination
1610iwlagn_iface_combinations_dualmode[] = {
1611 { .num_different_channels = 1,
1612 .max_interfaces = 2,
1613 .beacon_int_infra_match = true,
1614 .limits = iwlagn_sta_ap_limits,
1615 .n_limits = ARRAY_SIZE(iwlagn_sta_ap_limits),
1616 },
1617 { .num_different_channels = 1,
1618 .max_interfaces = 2,
1619 .limits = iwlagn_2sta_limits,
1620 .n_limits = ARRAY_SIZE(iwlagn_2sta_limits),
1621 },
1622};
1623
1624static const struct ieee80211_iface_combination
1625iwlagn_iface_combinations_p2p[] = {
1626 { .num_different_channels = 1,
1627 .max_interfaces = 2,
1628 .beacon_int_infra_match = true,
1629 .limits = iwlagn_p2p_sta_go_limits,
1630 .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits),
1631 },
1632 { .num_different_channels = 1,
1633 .max_interfaces = 2,
1634 .limits = iwlagn_p2p_2sta_limits,
1635 .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits),
1636 },
1637};
1638
f0b6e2e8
RC		 1639/*
1640 * Not a mac80211 entry point function, but it fits in with all the
1641 * other mac80211 functions grouped here.
1642 */
ade4c649 1643static int iwlagn_mac_setup_register(struct iwl_priv *priv,
dd7a2509 1644 struct iwlagn_ucode_capabilities *capa)
f0b6e2e8
RC		 1645{
1646 int ret;
1647 struct ieee80211_hw *hw = priv->hw;
d0fe478c
JB		 1648 struct iwl_rxon_context *ctx;
1649
f0b6e2e8
RC		 1650 hw->rate_control_algorithm = "iwl-agn-rs";
1651
1652 /* Tell mac80211 our characteristics */
1653 hw->flags = IEEE80211_HW_SIGNAL_DBM |
f0b6e2e8 1654 IEEE80211_HW_AMPDU_AGGREGATION |
2491fa42 1655 IEEE80211_HW_NEED_DTIM_PERIOD |
6fb5511a
JB		 1656 IEEE80211_HW_SPECTRUM_MGMT |
1657 IEEE80211_HW_REPORTS_TX_ACK_STATUS;
f0b6e2e8 1658
2249b011
DF		 1659 /*
1660 * Including the following line will crash some AP's. This
1661 * workaround removes the stimulus which causes the crash until
1662 * the AP software can be fixed.
9b768832 1663 hw->max_tx_aggregation_subframes = LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2249b011 1664 */
9b768832 1665
23c0fcc6
WYG		 1666 hw->flags |= IEEE80211_HW_SUPPORTS_PS |
1667 IEEE80211_HW_SUPPORTS_DYNAMIC_PS;
f0b6e2e8 1668
88950758 1669 if (priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE)
ba37a3d0
JB		 1670 hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
1671 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
1672
3997ff39
JB		 1673 if (capa->flags & IWL_UCODE_TLV_FLAGS_MFP)
1674 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
1675
8d9698b3 1676 hw->sta_data_size = sizeof(struct iwl_station_priv);
fd1af15d
JB		 1677 hw->vif_data_size = sizeof(struct iwl_vif_priv);
1678
d0fe478c
JB		 1679 for_each_context(priv, ctx) {
1680 hw->wiphy->interface_modes |= ctx->interface_modes;
1681 hw->wiphy->interface_modes |= ctx->exclusive_interface_modes;
1682 }
f0b6e2e8 1683
0fd09502
JB		 1684 BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2);
1685
f35490f9 1686 if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) {
0fd09502
JB		 1687 hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p;
1688 hw->wiphy->n_iface_combinations =
1689 ARRAY_SIZE(iwlagn_iface_combinations_p2p);
f35490f9 1690 } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) {
0fd09502
JB		 1691 hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode;
1692 hw->wiphy->n_iface_combinations =
1693 ARRAY_SIZE(iwlagn_iface_combinations_dualmode);
1694 }
1695
9b9190d9
JB		 1696 hw->wiphy->max_remain_on_channel_duration = 1000;
1697
f6c8f152 1698 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
274102a8
JB		 1699 WIPHY_FLAG_DISABLE_BEACON_HINTS |
1700 WIPHY_FLAG_IBSS_RSN;
f0b6e2e8 1701
26bfc0cf 1702 if (priv->ucode_wowlan.code.len && device_can_wakeup(bus(priv)->dev)) {
c8ac61cf
JB		 1703 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
1704 WIPHY_WOWLAN_DISCONNECT |
1705 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
1706 WIPHY_WOWLAN_RFKILL_RELEASE;
1707 if (!iwlagn_mod_params.sw_crypto)
1708 hw->wiphy->wowlan.flags |=
1709 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
1710 WIPHY_WOWLAN_GTK_REKEY_FAILURE;
1711
1712 hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS;
1713 hw->wiphy->wowlan.pattern_min_len =
1714 IWLAGN_WOWLAN_MIN_PATTERN_LEN;
1715 hw->wiphy->wowlan.pattern_max_len =
1716 IWLAGN_WOWLAN_MAX_PATTERN_LEN;
1717 }
1718
0172b029
WYG		 1719 if (iwlagn_mod_params.power_save)
1720 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
1721 else
1722 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
f0b6e2e8 1723
1382c71c 1724 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
f0b6e2e8 1725 /* we create the 802.11 header and a zero-length SSID element */
dd7a2509 1726 hw->wiphy->max_scan_ie_len = capa->max_probe_length - 24 - 2;
f0b6e2e8
RC		 1727
1728 /* Default value; 4 EDCA QOS priorities */
1729 hw->queues = 4;
1730
1731 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
1732
1733 if (priv->bands[IEEE80211_BAND_2GHZ].n_channels)
1734 priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
1735 &priv->bands[IEEE80211_BAND_2GHZ];
1736 if (priv->bands[IEEE80211_BAND_5GHZ].n_channels)
1737 priv->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
1738 &priv->bands[IEEE80211_BAND_5GHZ];
1739
5ed540ae
WYG		 1740 iwl_leds_init(priv);
1741
f0b6e2e8
RC		 1742 ret = ieee80211_register_hw(priv->hw);
1743 if (ret) {
1744 IWL_ERR(priv, "Failed to register hw (error %d)\n", ret);
1745 return ret;
1746 }
859cfb0a 1747 priv->mac80211_registered = 1;
f0b6e2e8
RC		 1748
1749 return 0;
1750}
1751
1752
2dedbf58 1753static int iwlagn_mac_start(struct ieee80211_hw *hw)
b481de9c 1754{
c79dd5b5 1755 struct iwl_priv *priv = hw->priv;
5a66926a 1756 int ret;
b481de9c 1757
e1623446 1758 IWL_DEBUG_MAC80211(priv, "enter\n");
b481de9c
ZY		 1759
1760 /* we should be verifying the device is ready to be opened */
6ac2f839 1761 mutex_lock(&priv->shrd->mutex);
5b9f8cd3 1762 ret = __iwl_up(priv);
6ac2f839 1763 mutex_unlock(&priv->shrd->mutex);
e655b9f0 1764 if (ret)
6cd0b1cb 1765 return ret;
e655b9f0 1766
e1623446 1767 IWL_DEBUG_INFO(priv, "Start UP work done.\n");
e655b9f0 1768
ca7966c8 1769 /* Now we should be done, and the READY bit should be set. */
63013ae3 1770 if (WARN_ON(!test_bit(STATUS_READY, &priv->shrd->status)))
ca7966c8 1771 ret = -EIO;
0a078ffa 1772
5ed540ae 1773 iwlagn_led_enable(priv);
e932a609 1774
0a078ffa 1775 priv->is_open = 1;
e1623446 1776 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c
ZY		 1777 return 0;
1778}
1779
2dedbf58 1780static void iwlagn_mac_stop(struct ieee80211_hw *hw)
b481de9c 1781{
c79dd5b5 1782 struct iwl_priv *priv = hw->priv;
b481de9c 1783
e1623446 1784 IWL_DEBUG_MAC80211(priv, "enter\n");
948c171c 1785
19cc1087 1786 if (!priv->is_open)
e655b9f0 1787 return;
e655b9f0 1788
b481de9c 1789 priv->is_open = 0;
5a66926a 1790
5b9f8cd3 1791 iwl_down(priv);
5a66926a 1792
74e28e44 1793 flush_workqueue(priv->shrd->workqueue);
6cd0b1cb 1794
554d1d02
SG		 1795 /* User space software may expect getting rfkill changes
1796 * even if interface is down */
83ed9015 1797 iwl_write32(bus(priv), CSR_INT, 0xFFFFFFFF);
554d1d02 1798 iwl_enable_rfkill_int(priv);
948c171c 1799
e1623446 1800 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c
ZY		 1801}
1802
c01a4047 1803#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 1804static int iwlagn_send_patterns(struct iwl_priv *priv,
1805 struct cfg80211_wowlan *wowlan)
1806{
1807 struct iwlagn_wowlan_patterns_cmd *pattern_cmd;
1808 struct iwl_host_cmd cmd = {
1809 .id = REPLY_WOWLAN_PATTERNS,
1810 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1811 .flags = CMD_SYNC,
1812 };
1813 int i, err;
1814
1815 if (!wowlan->n_patterns)
1816 return 0;
1817
1818 cmd.len[0] = sizeof(*pattern_cmd) +
1819 wowlan->n_patterns * sizeof(struct iwlagn_wowlan_pattern);
1820
1821 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
1822 if (!pattern_cmd)
1823 return -ENOMEM;
1824
1825 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
1826
1827 for (i = 0; i < wowlan->n_patterns; i++) {
1828 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
1829
1830 memcpy(&pattern_cmd->patterns[i].mask,
1831 wowlan->patterns[i].mask, mask_len);
1832 memcpy(&pattern_cmd->patterns[i].pattern,
1833 wowlan->patterns[i].pattern,
1834 wowlan->patterns[i].pattern_len);
1835 pattern_cmd->patterns[i].mask_size = mask_len;
1836 pattern_cmd->patterns[i].pattern_size =
1837 wowlan->patterns[i].pattern_len;
1838 }
1839
1840 cmd.data[0] = pattern_cmd;
e6bb4c9c 1841 err = iwl_trans_send_cmd(trans(priv), &cmd);
c8ac61cf
JB		 1842 kfree(pattern_cmd);
1843 return err;
1844}
26293133 1845#endif
c8ac61cf
JB		 1846
1847static void iwlagn_mac_set_rekey_data(struct ieee80211_hw *hw,
1848 struct ieee80211_vif *vif,
1849 struct cfg80211_gtk_rekey_data *data)
1850{
1851 struct iwl_priv *priv = hw->priv;
1852
1853 if (iwlagn_mod_params.sw_crypto)
1854 return;
1855
770c72c4 1856 IWL_DEBUG_MAC80211(priv, "enter\n");
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);
770c72c4 1869 IWL_DEBUG_MAC80211(priv, "leave\n");
c8ac61cf
JB		 1870}
1871
1872struct wowlan_key_data {
1873 struct iwl_rxon_context *ctx;
1874 struct iwlagn_wowlan_rsc_tsc_params_cmd *rsc_tsc;
1875 struct iwlagn_wowlan_tkip_params_cmd *tkip;
1876 const u8 *bssid;
1877 bool error, use_rsc_tsc, use_tkip;
1878};
1879
c01a4047 1880#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 1881static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
1882{
1883 int i;
1884
1885 for (i = 0; i < IWLAGN_P1K_SIZE; i++)
1886 out[i] = cpu_to_le16(p1k[i]);
1887}
1888
1889static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
1890 struct ieee80211_vif *vif,
1891 struct ieee80211_sta *sta,
1892 struct ieee80211_key_conf *key,
1893 void *_data)
1894{
1895 struct iwl_priv *priv = hw->priv;
1896 struct wowlan_key_data *data = _data;
1897 struct iwl_rxon_context *ctx = data->ctx;
1898 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
1899 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
1900 struct iwlagn_p1k_cache *rx_p1ks;
1901 u8 *rx_mic_key;
1902 struct ieee80211_key_seq seq;
1903 u32 cur_rx_iv32 = 0;
1904 u16 p1k[IWLAGN_P1K_SIZE];
1905 int ret, i;
1906
6ac2f839 1907 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 1908
1909 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
1910 key->cipher == WLAN_CIPHER_SUITE_WEP104) &&
1911 !sta && !ctx->key_mapping_keys)
1912 ret = iwl_set_default_wep_key(priv, ctx, key);
1913 else
1914 ret = iwl_set_dynamic_key(priv, ctx, key, sta);
1915
1916 if (ret) {
1917 IWL_ERR(priv, "Error setting key during suspend!\n");
1918 data->error = true;
1919 }
1920
1921 switch (key->cipher) {
1922 case WLAN_CIPHER_SUITE_TKIP:
1923 if (sta) {
1924 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
1925 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
1926
1927 rx_p1ks = data->tkip->rx_uni;
1928
1929 ieee80211_get_key_tx_seq(key, &seq);
1930 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
1931 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
1932
1933 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
1934 iwlagn_convert_p1k(p1k, data->tkip->tx.p1k);
1935
1936 memcpy(data->tkip->mic_keys.tx,
1937 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
1938 IWLAGN_MIC_KEY_SIZE);
1939
1940 rx_mic_key = data->tkip->mic_keys.rx_unicast;
1941 } else {
1942 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
1943 rx_p1ks = data->tkip->rx_multi;
1944 rx_mic_key = data->tkip->mic_keys.rx_mcast;
1945 }
1946
1947 /*
1948 * For non-QoS this relies on the fact that both the uCode and
1949 * mac80211 use TID 0 (as they need to to avoid replay attacks)
1950 * for checking the IV in the frames.
1951 */
1952 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1953 ieee80211_get_key_rx_seq(key, i, &seq);
1954 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
1955 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
1956 /* wrapping isn't allowed, AP must rekey */
1957 if (seq.tkip.iv32 > cur_rx_iv32)
1958 cur_rx_iv32 = seq.tkip.iv32;
1959 }
1960
1961 ieee80211_get_tkip_rx_p1k(key, data->bssid, cur_rx_iv32, p1k);
1962 iwlagn_convert_p1k(p1k, rx_p1ks[0].p1k);
1963 ieee80211_get_tkip_rx_p1k(key, data->bssid,
1964 cur_rx_iv32 + 1, p1k);
1965 iwlagn_convert_p1k(p1k, rx_p1ks[1].p1k);
1966
1967 memcpy(rx_mic_key,
1968 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
1969 IWLAGN_MIC_KEY_SIZE);
1970
1971 data->use_tkip = true;
1972 data->use_rsc_tsc = true;
1973 break;
1974 case WLAN_CIPHER_SUITE_CCMP:
1975 if (sta) {
1976 u8 *pn = seq.ccmp.pn;
1977
1978 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
1979 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
1980
1981 ieee80211_get_key_tx_seq(key, &seq);
1982 aes_tx_sc->pn = cpu_to_le64(
1983 (u64)pn[5] |
1984 ((u64)pn[4] << 8) |
1985 ((u64)pn[3] << 16) |
1986 ((u64)pn[2] << 24) |
1987 ((u64)pn[1] << 32) |
1988 ((u64)pn[0] << 40));
1989 } else
1990 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
1991
1992 /*
1993 * For non-QoS this relies on the fact that both the uCode and
1994 * mac80211 use TID 0 for checking the IV in the frames.
1995 */
1996 for (i = 0; i < IWLAGN_NUM_RSC; i++) {
1997 u8 *pn = seq.ccmp.pn;
1998
1999 ieee80211_get_key_rx_seq(key, i, &seq);
2000 aes_sc->pn = cpu_to_le64(
2001 (u64)pn[5] |
2002 ((u64)pn[4] << 8) |
2003 ((u64)pn[3] << 16) |
2004 ((u64)pn[2] << 24) |
2005 ((u64)pn[1] << 32) |
2006 ((u64)pn[0] << 40));
2007 }
2008 data->use_rsc_tsc = true;
2009 break;
2010 }
2011
6ac2f839 2012 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2013}
2014
2015static int iwlagn_mac_suspend(struct ieee80211_hw *hw,
2016 struct cfg80211_wowlan *wowlan)
2017{
2018 struct iwl_priv *priv = hw->priv;
2019 struct iwlagn_wowlan_wakeup_filter_cmd wakeup_filter_cmd;
2020 struct iwl_rxon_cmd rxon;
2021 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2022 struct iwlagn_wowlan_kek_kck_material_cmd kek_kck_cmd;
2023 struct iwlagn_wowlan_tkip_params_cmd tkip_cmd = {};
2024 struct wowlan_key_data key_data = {
2025 .ctx = ctx,
2026 .bssid = ctx->active.bssid_addr,
2027 .use_rsc_tsc = false,
2028 .tkip = &tkip_cmd,
2029 .use_tkip = false,
2030 };
2031 int ret, i;
2032 u16 seq;
2033
2034 if (WARN_ON(!wowlan))
2035 return -EINVAL;
2036
770c72c4 2037 IWL_DEBUG_MAC80211(priv, "enter\n");
6ac2f839 2038 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 2039
2040 /* Don't attempt WoWLAN when not associated, tear down instead. */
2041 if (!ctx->vif || ctx->vif->type != NL80211_IFTYPE_STATION ||
2042 !iwl_is_associated_ctx(ctx)) {
2043 ret = 1;
2044 goto out;
2045 }
2046
2047 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
2048 if (!key_data.rsc_tsc) {
2049 ret = -ENOMEM;
2050 goto out;
2051 }
2052
2053 memset(&wakeup_filter_cmd, 0, sizeof(wakeup_filter_cmd));
2054
2055 /*
2056 * We know the last used seqno, and the uCode expects to know that
2057 * one, it will increment before TX.
2058 */
2059 seq = le16_to_cpu(priv->last_seq_ctl) & IEEE80211_SCTL_SEQ;
2060 wakeup_filter_cmd.non_qos_seq = cpu_to_le16(seq);
2061
2062 /*
2063 * For QoS counters, we store the one to use next, so subtract 0x10
2064 * since the uCode will add 0x10 before using the value.
2065 */
2066 for (i = 0; i < 8; i++) {
5f85a789 2067 seq = priv->shrd->tid_data[IWL_AP_ID][i].seq_number;
c8ac61cf
JB		 2068 seq -= 0x10;
2069 wakeup_filter_cmd.qos_seq[i] = cpu_to_le16(seq);
2070 }
2071
2072 if (wowlan->disconnect)
2073 wakeup_filter_cmd.enabled |=
2074 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_BEACON_MISS |
2075 IWLAGN_WOWLAN_WAKEUP_LINK_CHANGE);
2076 if (wowlan->magic_pkt)
2077 wakeup_filter_cmd.enabled |=
2078 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_MAGIC_PACKET);
2079 if (wowlan->gtk_rekey_failure)
2080 wakeup_filter_cmd.enabled |=
2081 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
2082 if (wowlan->eap_identity_req)
2083 wakeup_filter_cmd.enabled |=
2084 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_EAP_IDENT_REQ);
2085 if (wowlan->four_way_handshake)
2086 wakeup_filter_cmd.enabled |=
2087 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
2088 if (wowlan->rfkill_release)
2089 wakeup_filter_cmd.enabled |=
2090 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_RFKILL);
2091 if (wowlan->n_patterns)
2092 wakeup_filter_cmd.enabled |=
2093 cpu_to_le32(IWLAGN_WOWLAN_WAKEUP_PATTERN_MATCH);
2094
2095 iwl_scan_cancel_timeout(priv, 200);
2096
2097 memcpy(&rxon, &ctx->active, sizeof(rxon));
2098
e6bb4c9c 2099 iwl_trans_stop_device(trans(priv));
c8ac61cf 2100
57210f7c 2101 priv->shrd->wowlan = true;
c8ac61cf
JB		 2102
2103 ret = iwlagn_load_ucode_wait_alive(priv, &priv->ucode_wowlan,
2104 IWL_UCODE_WOWLAN);
2105 if (ret)
2106 goto error;
2107
2108 /* now configure WoWLAN ucode */
2109 ret = iwl_alive_start(priv);
2110 if (ret)
2111 goto error;
2112
2113 memcpy(&ctx->staging, &rxon, sizeof(rxon));
2114 ret = iwlagn_commit_rxon(priv, ctx);
2115 if (ret)
2116 goto error;
2117
2118 ret = iwl_power_update_mode(priv, true);
2119 if (ret)
2120 goto error;
2121
2122 if (!iwlagn_mod_params.sw_crypto) {
2123 /* mark all keys clear */
2124 priv->ucode_key_table = 0;
2125 ctx->key_mapping_keys = 0;
2126
2127 /*
2128 * This needs to be unlocked due to lock ordering
2129 * constraints. Since we're in the suspend path
2130 * that isn't really a problem though.
2131 */
6ac2f839 2132 mutex_unlock(&priv->shrd->mutex);
c8ac61cf
JB		 2133 ieee80211_iter_keys(priv->hw, ctx->vif,
2134 iwlagn_wowlan_program_keys,
2135 &key_data);
6ac2f839 2136 mutex_lock(&priv->shrd->mutex);
c8ac61cf
JB		 2137 if (key_data.error) {
2138 ret = -EIO;
2139 goto error;
2140 }
2141
2142 if (key_data.use_rsc_tsc) {
2143 struct iwl_host_cmd rsc_tsc_cmd = {
2144 .id = REPLY_WOWLAN_TSC_RSC_PARAMS,
2145 .flags = CMD_SYNC,
2146 .data[0] = key_data.rsc_tsc,
2147 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
2148 .len[0] = sizeof(*key_data.rsc_tsc),
2149 };
2150
e6bb4c9c 2151 ret = iwl_trans_send_cmd(trans(priv), &rsc_tsc_cmd);
c8ac61cf
JB		 2152 if (ret)
2153 goto error;
2154 }
2155
2156 if (key_data.use_tkip) {
e6bb4c9c 2157 ret = iwl_trans_send_cmd_pdu(trans(priv),
c8ac61cf
JB		 2158 REPLY_WOWLAN_TKIP_PARAMS,
2159 CMD_SYNC, sizeof(tkip_cmd),
2160 &tkip_cmd);
2161 if (ret)
2162 goto error;
2163 }
2164
2165 if (priv->have_rekey_data) {
2166 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
2167 memcpy(kek_kck_cmd.kck, priv->kck, NL80211_KCK_LEN);
2168 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
2169 memcpy(kek_kck_cmd.kek, priv->kek, NL80211_KEK_LEN);
2170 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
2171 kek_kck_cmd.replay_ctr = priv->replay_ctr;
2172
e6bb4c9c 2173 ret = iwl_trans_send_cmd_pdu(trans(priv),
c8ac61cf
JB		 2174 REPLY_WOWLAN_KEK_KCK_MATERIAL,
2175 CMD_SYNC, sizeof(kek_kck_cmd),
2176 &kek_kck_cmd);
2177 if (ret)
2178 goto error;
2179 }
2180 }
2181
e6bb4c9c 2182 ret = iwl_trans_send_cmd_pdu(trans(priv), REPLY_WOWLAN_WAKEUP_FILTER,
c8ac61cf
JB		 2183 CMD_SYNC, sizeof(wakeup_filter_cmd),
2184 &wakeup_filter_cmd);
2185 if (ret)
2186 goto error;
2187
2188 ret = iwlagn_send_patterns(priv, wowlan);
2189 if (ret)
2190 goto error;
2191
26bfc0cf 2192 device_set_wakeup_enable(bus(priv)->dev, true);
c8ac61cf
JB		 2193
2194 /* Now let the ucode operate on its own */
83ed9015 2195 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_SET,
c8ac61cf
JB		 2196 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2197
2198 goto out;
2199
2200 error:
57210f7c 2201 priv->shrd->wowlan = false;
c8ac61cf
JB		 2202 iwlagn_prepare_restart(priv);
2203 ieee80211_restart_hw(priv->hw);
2204 out:
6ac2f839 2205 mutex_unlock(&priv->shrd->mutex);
c8ac61cf 2206 kfree(key_data.rsc_tsc);
770c72c4
WYG		 2207 IWL_DEBUG_MAC80211(priv, "leave\n");
2208
c8ac61cf
JB		 2209 return ret;
2210}
2211
2212static int iwlagn_mac_resume(struct ieee80211_hw *hw)
2213{
2214 struct iwl_priv *priv = hw->priv;
2215 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
2216 struct ieee80211_vif *vif;
2217 unsigned long flags;
2218 u32 base, status = 0xffffffff;
2219 int ret = -EIO;
2220
770c72c4 2221 IWL_DEBUG_MAC80211(priv, "enter\n");
6ac2f839 2222 mutex_lock(&priv->shrd->mutex);
c8ac61cf 2223
83ed9015 2224 iwl_write32(bus(priv), CSR_UCODE_DRV_GP1_CLR,
c8ac61cf
JB		 2225 CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE);
2226
2227 base = priv->device_pointers.error_event_table;
2228 if (iwlagn_hw_valid_rtc_data_addr(base)) {
83ed9015
EG		 2229 spin_lock_irqsave(&bus(priv)->reg_lock, flags);
2230 ret = iwl_grab_nic_access_silent(bus(priv));
c8ac61cf 2231 if (ret == 0) {
83ed9015
EG		 2232 iwl_write32(bus(priv), HBUS_TARG_MEM_RADDR, base);
2233 status = iwl_read32(bus(priv), HBUS_TARG_MEM_RDAT);
2234 iwl_release_nic_access(bus(priv));
c8ac61cf 2235 }
83ed9015 2236 spin_unlock_irqrestore(&bus(priv)->reg_lock, flags);
c8ac61cf
JB		 2237
2238#ifdef CONFIG_IWLWIFI_DEBUGFS
2239 if (ret == 0) {
2240 if (!priv->wowlan_sram)
2241 priv->wowlan_sram =
2242 kzalloc(priv->ucode_wowlan.data.len,
2243 GFP_KERNEL);
2244
2245 if (priv->wowlan_sram)
2246 _iwl_read_targ_mem_words(
83ed9015 2247 bus(priv), 0x800000, priv->wowlan_sram,
c8ac61cf
JB		 2248 priv->ucode_wowlan.data.len / 4);
2249 }
2250#endif
2251 }
2252
2253 /* we'll clear ctx->vif during iwlagn_prepare_restart() */
2254 vif = ctx->vif;
2255
57210f7c 2256 priv->shrd->wowlan = false;
c8ac61cf 2257
26bfc0cf 2258 device_set_wakeup_enable(bus(priv)->dev, false);
c8ac61cf
JB		 2259
2260 iwlagn_prepare_restart(priv);
2261
2262 memset((void *)&ctx->active, 0, sizeof(ctx->active));
2263 iwl_connection_init_rx_config(priv, ctx);
2264 iwlagn_set_rxon_chain(priv, ctx);
2265
6ac2f839 2266 mutex_unlock(&priv->shrd->mutex);
770c72c4 2267 IWL_DEBUG_MAC80211(priv, "leave\n");
c8ac61cf
JB		 2268
2269 ieee80211_resume_disconnect(vif);
2270
2271 return 1;
2272}
26293133 2273#endif
c8ac61cf 2274
2dedbf58 2275static void iwlagn_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
b481de9c 2276{
c79dd5b5 2277 struct iwl_priv *priv = hw->priv;
b481de9c 2278
e1623446 2279 IWL_DEBUG_MACDUMP(priv, "enter\n");
b481de9c 2280
e1623446 2281 IWL_DEBUG_TX(priv, "dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
e039fa4a 2282 ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
b481de9c 2283
74bcdb33 2284 if (iwlagn_tx_skb(priv, skb))
b481de9c
ZY		 2285 dev_kfree_skb_any(skb);
2286
e1623446 2287 IWL_DEBUG_MACDUMP(priv, "leave\n");
b481de9c
ZY		 2288}
2289
2dedbf58
JB		 2290static void iwlagn_mac_update_tkip_key(struct ieee80211_hw *hw,
2291 struct ieee80211_vif *vif,
2292 struct ieee80211_key_conf *keyconf,
2293 struct ieee80211_sta *sta,
2294 u32 iv32, u16 *phase1key)
ab885f8c 2295{
9f58671e 2296 struct iwl_priv *priv = hw->priv;
ab885f8c 2297
5a3d9882 2298 iwl_update_tkip_key(priv, vif, keyconf, sta, iv32, phase1key);
ab885f8c
EG		 2299}
2300
2dedbf58
JB		 2301static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2302 struct ieee80211_vif *vif,
2303 struct ieee80211_sta *sta,
2304 struct ieee80211_key_conf *key)
b481de9c 2305{
c79dd5b5 2306 struct iwl_priv *priv = hw->priv;
a194e324 2307 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
c10afb6e 2308 struct iwl_rxon_context *ctx = vif_priv->ctx;
42986796 2309 int ret;
42986796 2310 bool is_default_wep_key = false;
b481de9c 2311
e1623446 2312 IWL_DEBUG_MAC80211(priv, "enter\n");
b481de9c 2313
9d143e9a 2314 if (iwlagn_mod_params.sw_crypto) {
e1623446 2315 IWL_DEBUG_MAC80211(priv, "leave - hwcrypto disabled\n");
b481de9c
ZY		 2316 return -EOPNOTSUPP;
2317 }
b481de9c 2318
274b89ca
JB		 2319 switch (key->cipher) {
2320 case WLAN_CIPHER_SUITE_TKIP:
2321 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2322 /* fall through */
2323 case WLAN_CIPHER_SUITE_CCMP:
2324 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2325 break;
2326 default:
2327 break;
2328 }
2329
274102a8 2330 /*
5a3d9882
JB		 2331 * We could program these keys into the hardware as well, but we
2332 * don't expect much multicast traffic in IBSS and having keys
2333 * for more stations is probably more useful.
2334 *
2335 * Mark key TX-only and return 0.
274102a8
JB		 2336 */
2337 if (vif->type == NL80211_IFTYPE_ADHOC &&
5a3d9882
JB		 2338 !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
2339 key->hw_key_idx = WEP_INVALID_OFFSET;
2340 return 0;
2341 }
274102a8 2342
5a3d9882
JB		 2343 /* If they key was TX-only, accept deletion */
2344 if (cmd == DISABLE_KEY && key->hw_key_idx == WEP_INVALID_OFFSET)
2345 return 0;
b481de9c 2346
6ac2f839 2347 mutex_lock(&priv->shrd->mutex);
2a421b91 2348 iwl_scan_cancel_timeout(priv, 100);
6974e363 2349
5a3d9882
JB		 2350 BUILD_BUG_ON(WEP_INVALID_OFFSET == IWLAGN_HW_KEY_DEFAULT);
2351
a90178fa
JB		 2352 /*
2353 * If we are getting WEP group key and we didn't receive any key mapping
6974e363
EG		 2354 * so far, we are in legacy wep mode (group key only), otherwise we are
2355 * in 1X mode.
a90178fa
JB		 2356 * In legacy wep mode, we use another host command to the uCode.
2357 */
97359d12 2358 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
5a3d9882 2359 key->cipher == WLAN_CIPHER_SUITE_WEP104) && !sta) {
6974e363 2360 if (cmd == SET_KEY)
c10afb6e 2361 is_default_wep_key = !ctx->key_mapping_keys;
6974e363 2362 else
ccc038ab 2363 is_default_wep_key =
5a3d9882 2364 key->hw_key_idx == IWLAGN_HW_KEY_DEFAULT;
6974e363 2365 }
052c4b9f 2366
5a3d9882 2367
b481de9c 2368 switch (cmd) {
deb09c43 2369 case SET_KEY:
5a3d9882 2370 if (is_default_wep_key) {
2995bafa 2371 ret = iwl_set_default_wep_key(priv, vif_priv->ctx, key);
5a3d9882
JB		 2372 break;
2373 }
2374 ret = iwl_set_dynamic_key(priv, vif_priv->ctx, key, sta);
2375 if (ret) {
2376 /*
2377 * can't add key for RX, but we don't need it
2378 * in the device for TX so still return 0
2379 */
2380 ret = 0;
2381 key->hw_key_idx = WEP_INVALID_OFFSET;
2382 }
deb09c43 2383
e1623446 2384 IWL_DEBUG_MAC80211(priv, "enable hwcrypto key\n");
b481de9c
ZY		 2385 break;
2386 case DISABLE_KEY:
6974e363 2387 if (is_default_wep_key)
c10afb6e 2388 ret = iwl_remove_default_wep_key(priv, ctx, key);
deb09c43 2389 else
5a3d9882 2390 ret = iwl_remove_dynamic_key(priv, ctx, key, sta);
deb09c43 2391
e1623446 2392 IWL_DEBUG_MAC80211(priv, "disable hwcrypto key\n");
b481de9c
ZY		 2393 break;
2394 default:
deb09c43 2395 ret = -EINVAL;
b481de9c
ZY		 2396 }
2397
6ac2f839 2398 mutex_unlock(&priv->shrd->mutex);
e1623446 2399 IWL_DEBUG_MAC80211(priv, "leave\n");
b481de9c 2400
deb09c43 2401 return ret;
b481de9c
ZY		 2402}
2403
2dedbf58
JB		 2404static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw,
2405 struct ieee80211_vif *vif,
2406 enum ieee80211_ampdu_mlme_action action,
2407 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
2408 u8 buf_size)
d783b061
TW		 2409{
2410 struct iwl_priv *priv = hw->priv;
4620fefa 2411 int ret = -EINVAL;
7b090687 2412 struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
ba562f71 2413 struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
d783b061 2414
e1623446 2415 IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
e174961c 2416 sta->addr, tid);
d783b061 2417
88950758 2418 if (!(priv->cfg->sku & EEPROM_SKU_CAP_11N_ENABLE))
d783b061
TW		 2419 return -EACCES;
2420
770c72c4 2421 IWL_DEBUG_MAC80211(priv, "enter\n");
6ac2f839 2422 mutex_lock(&priv->shrd->mutex);
4620fefa 2423
d783b061
TW		 2424 switch (action) {
2425 case IEEE80211_AMPDU_RX_START:
e1623446 2426 IWL_DEBUG_HT(priv, "start Rx\n");
4620fefa
JB		 2427 ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn);
2428 break;
d783b061 2429 case IEEE80211_AMPDU_RX_STOP:
e1623446 2430 IWL_DEBUG_HT(priv, "stop Rx\n");
619753ff 2431 ret = iwl_sta_rx_agg_stop(priv, sta, tid);
63013ae3 2432 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4620fefa
JB		 2433 ret = 0;
2434 break;
d783b061 2435 case IEEE80211_AMPDU_TX_START:
e1623446 2436 IWL_DEBUG_HT(priv, "start Tx\n");
619753ff 2437 ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn);
4620fefa 2438 break;
d783b061 2439 case IEEE80211_AMPDU_TX_STOP:
e1623446 2440 IWL_DEBUG_HT(priv, "stop Tx\n");
619753ff 2441 ret = iwlagn_tx_agg_stop(priv, vif, sta, tid);
898ed67b
WYG		 2442 if ((ret == 0) && (priv->agg_tids_count > 0)) {
2443 priv->agg_tids_count--;
2444 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2445 priv->agg_tids_count);
d5a0ffa3 2446 }
63013ae3 2447 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status))
4620fefa 2448 ret = 0;
ef082cb1 2449 if (!priv->agg_tids_count && priv->cfg->ht_params &&
7cb1b088 2450 priv->cfg->ht_params->use_rts_for_aggregation) {
94597ab2
JB		 2451 /*
2452 * switch off RTS/CTS if it was previously enabled
2453 */
94597ab2
JB		 2454 sta_priv->lq_sta.lq.general_params.flags &=
2455 ~LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
7e6a5886
JB		 2456 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2457 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
94597ab2 2458 }
4620fefa 2459 break;
f0527971 2460 case IEEE80211_AMPDU_TX_OPERATIONAL:
c8823ec1
JB		 2461 buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
2462
c91bd124 2463 iwl_trans_tx_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
ba562f71 2464 tid, buf_size);
c8823ec1 2465
7b090687
JB		 2466 /*
2467 * If the limit is 0, then it wasn't initialised yet,
2468 * use the default. We can do that since we take the
2469 * minimum below, and we don't want to go above our
2470 * default due to hardware restrictions.
2471 */
2472 if (sta_priv->max_agg_bufsize == 0)
2473 sta_priv->max_agg_bufsize =
2474 LINK_QUAL_AGG_FRAME_LIMIT_DEF;
2475
2476 /*
2477 * Even though in theory the peer could have different
2478 * aggregation reorder buffer sizes for different sessions,
2479 * our ucode doesn't allow for that and has a global limit
2480 * for each station. Therefore, use the minimum of all the
2481 * aggregation sessions and our default value.
2482 */
2483 sta_priv->max_agg_bufsize =
2484 min(sta_priv->max_agg_bufsize, buf_size);
2485
7cb1b088
WYG		 2486 if (priv->cfg->ht_params &&
2487 priv->cfg->ht_params->use_rts_for_aggregation) {
cfecc6b4
WYG		 2488 /*
2489 * switch to RTS/CTS if it is the prefer protection
2490 * method for HT traffic
2491 */
94597ab2
JB		 2492
2493 sta_priv->lq_sta.lq.general_params.flags |=
2494 LINK_QUAL_FLAGS_SET_STA_TLC_RTS_MSK;
cfecc6b4 2495 }
ef082cb1
WYG		 2496 priv->agg_tids_count++;
2497 IWL_DEBUG_HT(priv, "priv->agg_tids_count = %u\n",
2498 priv->agg_tids_count);
7b090687
JB		 2499
2500 sta_priv->lq_sta.lq.agg_params.agg_frame_cnt_limit =
2501 sta_priv->max_agg_bufsize;
2502
2503 iwl_send_lq_cmd(priv, iwl_rxon_ctx_from_vif(vif),
2504 &sta_priv->lq_sta.lq, CMD_ASYNC, false);
5bc9890f
WYG		 2505
2506 IWL_INFO(priv, "Tx aggregation enabled on ra = %pM tid = %d\n",
2507 sta->addr, tid);
cfecc6b4 2508 ret = 0;
d783b061
TW		 2509 break;
2510 }
6ac2f839 2511 mutex_unlock(&priv->shrd->mutex);
770c72c4 2512 IWL_DEBUG_MAC80211(priv, "leave\n");
4620fefa 2513 return ret;
d783b061 2514}
9f58671e 2515
2dedbf58
JB		 2516static int iwlagn_mac_sta_add(struct ieee80211_hw *hw,
2517 struct ieee80211_vif *vif,
2518 struct ieee80211_sta *sta)
fe6b23dd
RC		 2519{
2520 struct iwl_priv *priv = hw->priv;
2521 struct iwl_station_priv *sta_priv = (void *)sta->drv_priv;
a194e324 2522 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
eafdfbd3 2523 bool is_ap = vif->type == NL80211_IFTYPE_STATION;
770c72c4 2524 int ret = 0;
fe6b23dd
RC		 2525 u8 sta_id;
2526
770c72c4 2527 IWL_DEBUG_MAC80211(priv, "received request to add station %pM\n",
fe6b23dd 2528 sta->addr);
6ac2f839 2529 mutex_lock(&priv->shrd->mutex);
da5ae1cf
RC		 2530 IWL_DEBUG_INFO(priv, "proceeding to add station %pM\n",
2531 sta->addr);
c6892906 2532 sta_priv->sta_id = IWL_INVALID_STATION;
fe6b23dd
RC		 2533
2534 atomic_set(&sta_priv->pending_frames, 0);
2535 if (vif->type == NL80211_IFTYPE_AP)
2536 sta_priv->client = true;
2537
a194e324 2538 ret = iwl_add_station_common(priv, vif_priv->ctx, sta->addr,
238d781d 2539 is_ap, sta, &sta_id);
fe6b23dd
RC		 2540 if (ret) {
2541 IWL_ERR(priv, "Unable to add station %pM (%d)\n",
2542 sta->addr, ret);
2543 /* Should we return success if return code is EEXIST ? */
770c72c4 2544 goto out;
fe6b23dd
RC		 2545 }
2546
c6892906 2547 sta_priv->sta_id = sta_id;
fd1af15d 2548
fe6b23dd 2549 /* Initialize rate scaling */
91dd6c27 2550 IWL_DEBUG_INFO(priv, "Initializing rate scaling for station %pM\n",
fe6b23dd
RC		 2551 sta->addr);
2552 iwl_rs_rate_init(priv, sta, sta_id);
770c72c4 2553 out:
6ac2f839 2554 mutex_unlock(&priv->shrd->mutex);
770c72c4 2555 IWL_DEBUG_MAC80211(priv, "leave\n");
fe6b23dd 2556
770c72c4 2557 return ret;
fe6b23dd
RC		 2558}
2559
2dedbf58
JB		 2560static void iwlagn_mac_channel_switch(struct ieee80211_hw *hw,
2561 struct ieee80211_channel_switch *ch_switch)
79d07325
WYG		 2562{
2563 struct iwl_priv *priv = hw->priv;
2564 const struct iwl_channel_info *ch_info;
2565 struct ieee80211_conf *conf = &hw->conf;
aa2dc6b5 2566 struct ieee80211_channel *channel = ch_switch->channel;
79d07325 2567 struct iwl_ht_config *ht_conf = &priv->current_ht_config;
246ed355
JB		 2568 /*
2569 * MULTI-FIXME
2570 * When we add support for multiple interfaces, we need to
2571 * revisit this. The channel switch command in the device
2572 * only affects the BSS context, but what does that really
2573 * mean? And what if we get a CSA on the second interface?
2574 * This needs a lot of work.
2575 */
2576 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS];
79d07325 2577 u16 ch;
79d07325
WYG		 2578
2579 IWL_DEBUG_MAC80211(priv, "enter\n");
2580
6ac2f839 2581 mutex_lock(&priv->shrd->mutex);
dc1a4068 2582
845a9c0d 2583 if (iwl_is_rfkill(priv->shrd))
dc1a4068 2584 goto out;
79d07325 2585
63013ae3
EG		 2586 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status) ||
2587 test_bit(STATUS_SCANNING, &priv->shrd->status) ||
2588 test_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status))
dc1a4068 2589 goto out;
79d07325 2590
246ed355 2591 if (!iwl_is_associated_ctx(ctx))
dc1a4068 2592 goto out;
79d07325 2593
90c300cb 2594 if (!priv->cfg->lib->set_channel_switch)
f973f87e 2595 goto out;
79d07325 2596
f973f87e
SG		 2597 ch = channel->hw_value;
2598 if (le16_to_cpu(ctx->active.channel) == ch)
2599 goto out;
2600
2601 ch_info = iwl_get_channel_info(priv, channel->band, ch);
2602 if (!is_channel_valid(ch_info)) {
2603 IWL_DEBUG_MAC80211(priv, "invalid channel\n");
2604 goto out;
2605 }
79d07325 2606
10b15e6f 2607 spin_lock_irq(&priv->shrd->lock);
79d07325 2608
f973f87e 2609 priv->current_ht_config.smps = conf->smps_mode;
79d07325 2610
f973f87e
SG		 2611 /* Configure HT40 channels */
2612 ctx->ht.enabled = conf_is_ht(conf);
34a5b4b6
WYG		 2613 if (ctx->ht.enabled)
2614 iwlagn_config_ht40(conf, ctx);
2615 else
f973f87e
SG		 2616 ctx->ht.is_40mhz = false;
2617
2618 if ((le16_to_cpu(ctx->staging.channel) != ch))
2619 ctx->staging.flags = 0;
2620
2621 iwl_set_rxon_channel(priv, channel, ctx);
2622 iwl_set_rxon_ht(priv, ht_conf);
2623 iwl_set_flags_for_band(priv, ctx, channel->band, ctx->vif);
2624
10b15e6f 2625 spin_unlock_irq(&priv->shrd->lock);
f973f87e
SG		 2626
2627 iwl_set_rate(priv);
2628 /*
2629 * at this point, staging_rxon has the
2630 * configuration for channel switch
2631 */
63013ae3 2632 set_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
f973f87e 2633 priv->switch_channel = cpu_to_le16(ch);
90c300cb 2634 if (priv->cfg->lib->set_channel_switch(priv, ch_switch)) {
63013ae3 2635 clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->shrd->status);
f973f87e
SG		 2636 priv->switch_channel = 0;
2637 ieee80211_chswitch_done(ctx->vif, false);
79d07325 2638 }
f973f87e 2639
79d07325 2640out:
6ac2f839 2641 mutex_unlock(&priv->shrd->mutex);
79d07325
WYG		 2642 IWL_DEBUG_MAC80211(priv, "leave\n");
2643}
2644
2dedbf58
JB		 2645static void iwlagn_configure_filter(struct ieee80211_hw *hw,
2646 unsigned int changed_flags,
2647 unsigned int *total_flags,
2648 u64 multicast)
8b8ab9d5
JB		 2649{
2650 struct iwl_priv *priv = hw->priv;
2651 __le32 filter_or = 0, filter_nand = 0;
246ed355 2652 struct iwl_rxon_context *ctx;
8b8ab9d5
JB		 2653
2654#define CHK(test, flag) do { \
2655 if (*total_flags & (test)) \
2656 filter_or |= (flag); \
2657 else \
2658 filter_nand |= (flag); \
2659 } while (0)
2660
2661 IWL_DEBUG_MAC80211(priv, "Enter: changed: 0x%x, total: 0x%x\n",
2662 changed_flags, *total_flags);
2663
2664 CHK(FIF_OTHER_BSS | FIF_PROMISC_IN_BSS, RXON_FILTER_PROMISC_MSK);
bdb84fec
JB		 2665 /* Setting _just_ RXON_FILTER_CTL2HOST_MSK causes FH errors */
2666 CHK(FIF_CONTROL, RXON_FILTER_CTL2HOST_MSK | RXON_FILTER_PROMISC_MSK);
8b8ab9d5
JB		 2667 CHK(FIF_BCN_PRBRESP_PROMISC, RXON_FILTER_BCON_AWARE_MSK);
2668
2669#undef CHK
2670
6ac2f839 2671 mutex_lock(&priv->shrd->mutex);
8b8ab9d5 2672
246ed355
JB		 2673 for_each_context(priv, ctx) {
2674 ctx->staging.filter_flags &= ~filter_nand;
2675 ctx->staging.filter_flags |= filter_or;
749ff4ef
SG		 2676
2677 /*
2678 * Not committing directly because hardware can perform a scan,
2679 * but we'll eventually commit the filter flags change anyway.
2680 */
246ed355 2681 }
8b8ab9d5 2682
6ac2f839 2683 mutex_unlock(&priv->shrd->mutex);
8b8ab9d5
JB		 2684
2685 /*
2686 * Receiving all multicast frames is always enabled by the
2687 * default flags setup in iwl_connection_init_rx_config()
2688 * since we currently do not support programming multicast
2689 * filters into the device.
2690 */
2691 *total_flags &= FIF_OTHER_BSS | FIF_ALLMULTI | FIF_PROMISC_IN_BSS |
2692 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL;
2693}
2694
2dedbf58 2695static void iwlagn_mac_flush(struct ieee80211_hw *hw, bool drop)
716c74b0
WYG		 2696{
2697 struct iwl_priv *priv = hw->priv;
2698
6ac2f839 2699 mutex_lock(&priv->shrd->mutex);
716c74b0
WYG		 2700 IWL_DEBUG_MAC80211(priv, "enter\n");
2701
63013ae3 2702 if (test_bit(STATUS_EXIT_PENDING, &priv->shrd->status)) {
716c74b0
WYG		 2703 IWL_DEBUG_TX(priv, "Aborting flush due to device shutdown\n");
2704 goto done;
2705 }
845a9c0d 2706 if (iwl_is_rfkill(priv->shrd)) {
716c74b0
WYG		 2707 IWL_DEBUG_TX(priv, "Aborting flush due to RF Kill\n");
2708 goto done;
2709 }
2710
2711 /*
2712 * mac80211 will not push any more frames for transmit
2713 * until the flush is completed
2714 */
2715 if (drop) {
2716 IWL_DEBUG_MAC80211(priv, "send flush command\n");
c68744fb 2717 if (iwlagn_txfifo_flush(priv, IWL_DROP_ALL)) {
716c74b0
WYG		 2718 IWL_ERR(priv, "flush request fail\n");
2719 goto done;
2720 }
2721 }
2722 IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n");
5f178cd2 2723 iwl_trans_wait_tx_queue_empty(trans(priv));
716c74b0 2724done:
6ac2f839 2725 mutex_unlock(&priv->shrd->mutex);
716c74b0
WYG		 2726 IWL_DEBUG_MAC80211(priv, "leave\n");
2727}
2728
c6baf7fb 2729void iwlagn_disable_roc(struct iwl_priv *priv)
9b9190d9
JB		 2730{
2731 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
9b9190d9 2732
6ac2f839 2733 lockdep_assert_held(&priv->shrd->mutex);
9b9190d9 2734
c6baf7fb 2735 if (!priv->hw_roc_setup)
9b9190d9
JB		 2736 return;
2737
c6baf7fb 2738 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
9b9190d9 2739 ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK;
9b9190d9 2740
898ed67b 2741 priv->hw_roc_channel = NULL;
9b9190d9 2742
c6baf7fb
JB		 2743 memset(ctx->staging.node_addr, 0, ETH_ALEN);
2744
805a3b81 2745 iwlagn_commit_rxon(priv, ctx);
9b9190d9
JB		 2746
2747 ctx->is_active = false;
c6baf7fb 2748 priv->hw_roc_setup = false;
9b9190d9
JB		 2749}
2750
c6baf7fb 2751static void iwlagn_disable_roc_work(struct work_struct *work)
9b9190d9
JB		 2752{
2753 struct iwl_priv *priv = container_of(work, struct iwl_priv,
c6baf7fb 2754 hw_roc_disable_work.work);
9b9190d9 2755
6ac2f839 2756 mutex_lock(&priv->shrd->mutex);
9b9190d9 2757 iwlagn_disable_roc(priv);
6ac2f839 2758 mutex_unlock(&priv->shrd->mutex);
9b9190d9
JB		 2759}
2760
ade4c649 2761static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw,
9b9190d9
JB		 2762 struct ieee80211_channel *channel,
2763 enum nl80211_channel_type channel_type,
2764 int duration)
2765{
2766 struct iwl_priv *priv = hw->priv;
c6baf7fb 2767 struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN];
9b9190d9
JB		 2768 int err = 0;
2769
7a10e3e4 2770 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
9b9190d9
JB		 2771 return -EOPNOTSUPP;
2772
c6baf7fb 2773 if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)))
9b9190d9
JB		 2774 return -EOPNOTSUPP;
2775
770c72c4 2776 IWL_DEBUG_MAC80211(priv, "enter\n");
6ac2f839 2777 mutex_lock(&priv->shrd->mutex);
9b9190d9 2778
63013ae3 2779 if (test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
9b9190d9
JB		 2780 err = -EBUSY;
2781 goto out;
2782 }
2783
898ed67b
WYG		 2784 priv->hw_roc_channel = channel;
2785 priv->hw_roc_chantype = channel_type;
c6baf7fb 2786 priv->hw_roc_duration = duration;
390808db 2787 priv->hw_roc_start_notified = false;
c6baf7fb
JB		 2788 cancel_delayed_work(&priv->hw_roc_disable_work);
2789
2790 if (!ctx->is_active) {
2791 ctx->is_active = true;
2792 ctx->staging.dev_type = RXON_DEV_TYPE_P2P;
2793 memcpy(ctx->staging.node_addr,
2794 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2795 ETH_ALEN);
2796 memcpy(ctx->staging.bssid_addr,
2797 priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr,
2798 ETH_ALEN);
2799 err = iwlagn_commit_rxon(priv, ctx);
2800 if (err)
2801 goto out;
2802 ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK |
2803 RXON_FILTER_PROMISC_MSK |
2804 RXON_FILTER_CTL2HOST_MSK;
2805
2806 err = iwlagn_commit_rxon(priv, ctx);
2807 if (err) {
2808 iwlagn_disable_roc(priv);
2809 goto out;
2810 }
2811 priv->hw_roc_setup = true;
2812 }
9b9190d9 2813
c6baf7fb
JB		 2814 err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band);
2815 if (err)
2816 iwlagn_disable_roc(priv);
9b9190d9
JB		 2817
2818 out:
6ac2f839 2819 mutex_unlock(&priv->shrd->mutex);
770c72c4 2820 IWL_DEBUG_MAC80211(priv, "leave\n");
9b9190d9
JB		 2821
2822 return err;
2823}
2824
ade4c649 2825static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw)
9b9190d9
JB		 2826{
2827 struct iwl_priv *priv = hw->priv;
2828
7a10e3e4 2829 if (!(priv->shrd->valid_contexts & BIT(IWL_RXON_CTX_PAN)))
9b9190d9
JB		 2830 return -EOPNOTSUPP;
2831
770c72c4 2832 IWL_DEBUG_MAC80211(priv, "enter\n");
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);
770c72c4 2837 IWL_DEBUG_MAC80211(priv, "leave\n");
9b9190d9
JB		 2838
2839 return 0;
2840}
2841
ade4c649
WYG		 2842static int iwlagn_mac_tx_sync(struct ieee80211_hw *hw,
2843 struct ieee80211_vif *vif,
2844 const u8 *bssid,
2845 enum ieee80211_tx_sync_type type)
debcf734
JB		 2846{
2847 struct iwl_priv *priv = hw->priv;
2848 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2849 struct iwl_rxon_context *ctx = vif_priv->ctx;
2850 int ret;
2851 u8 sta_id;
2852
770c72c4 2853 IWL_DEBUG_MAC80211(priv, "enter\n");
debcf734
JB		 2854 mutex_lock(&priv->shrd->mutex);
2855
2856 if (iwl_is_associated_ctx(ctx)) {
2857 ret = 0;
2858 goto out;
2859 }
2860
2861 if (ctx->preauth_bssid || test_bit(STATUS_SCAN_HW, &priv->shrd->status)) {
2862 ret = -EBUSY;
2863 goto out;
2864 }
2865
2866 ret = iwl_add_station_common(priv, ctx, bssid, true, NULL, &sta_id);
2867 if (ret)
2868 goto out;
2869
2870 if (WARN_ON(sta_id != ctx->ap_sta_id)) {
2871 ret = -EIO;
2872 goto out_remove_sta;
2873 }
2874
2875 memcpy(ctx->bssid, bssid, ETH_ALEN);
2876 ctx->preauth_bssid = true;
2877
2878 ret = iwlagn_commit_rxon(priv, ctx);
2879
2880 if (ret == 0)
2881 goto out;
2882
2883 out_remove_sta:
2884 iwl_remove_station(priv, sta_id, bssid);
2885 out:
2886 mutex_unlock(&priv->shrd->mutex);
770c72c4
WYG		 2887 IWL_DEBUG_MAC80211(priv, "leave\n");
2888
debcf734
JB		 2889 return ret;
2890}
2891
ade4c649 2892static void iwlagn_mac_finish_tx_sync(struct ieee80211_hw *hw,
debcf734
JB		 2893 struct ieee80211_vif *vif,
2894 const u8 *bssid,
2895 enum ieee80211_tx_sync_type type)
2896{
2897 struct iwl_priv *priv = hw->priv;
2898 struct iwl_vif_priv *vif_priv = (void *)vif->drv_priv;
2899 struct iwl_rxon_context *ctx = vif_priv->ctx;
2900
770c72c4 2901 IWL_DEBUG_MAC80211(priv, "enter\n");
debcf734
JB		 2902 mutex_lock(&priv->shrd->mutex);
2903
2904 if (iwl_is_associated_ctx(ctx))
2905 goto out;
2906
2907 iwl_remove_station(priv, ctx->ap_sta_id, bssid);
2908 ctx->preauth_bssid = false;
2909 /* no need to commit */
2910 out:
2911 mutex_unlock(&priv->shrd->mutex);
770c72c4 2912 IWL_DEBUG_MAC80211(priv, "leave\n");
debcf734
JB		 2913}
2914
b481de9c
ZY		 2915/*****************************************************************************
2916 *
2917 * driver setup and teardown
2918 *
2919 *****************************************************************************/
2920
4e39317d 2921static void iwl_setup_deferred_work(struct iwl_priv *priv)
b481de9c 2922{
74e28e44 2923 priv->shrd->workqueue = create_singlethread_workqueue(DRV_NAME);
b481de9c 2924
3e10caeb 2925 init_waitqueue_head(&priv->shrd->wait_command_queue);
b481de9c 2926
5b9f8cd3 2927 INIT_WORK(&priv->restart, iwl_bg_restart);
5b9f8cd3 2928 INIT_WORK(&priv->beacon_update, iwl_bg_beacon_update);
16e727e8 2929 INIT_WORK(&priv->run_time_calib_work, iwl_bg_run_time_calib_work);
65550636 2930 INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush);
bee008b7 2931 INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency);
fbba9410 2932 INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config);
c6baf7fb
JB		 2933 INIT_DELAYED_WORK(&priv->hw_roc_disable_work,
2934 iwlagn_disable_roc_work);
2a421b91 2935
2a421b91 2936 iwl_setup_scan_deferred_work(priv);
bb8c093b 2937
6bd4dba3
EG		 2938 if (priv->cfg->lib->bt_setup_deferred_work)
2939 priv->cfg->lib->bt_setup_deferred_work(priv);
4e39317d
EG		 2940
2941 init_timer(&priv->statistics_periodic);
2942 priv->statistics_periodic.data = (unsigned long)priv;
5b9f8cd3 2943 priv->statistics_periodic.function = iwl_bg_statistics_periodic;
b481de9c 2944
a9e1cb6a
WYG		 2945 init_timer(&priv->ucode_trace);
2946 priv->ucode_trace.data = (unsigned long)priv;
2947 priv->ucode_trace.function = iwl_bg_ucode_trace;
2948
22de94de
SG		 2949 init_timer(&priv->watchdog);
2950 priv->watchdog.data = (unsigned long)priv;
2951 priv->watchdog.function = iwl_bg_watchdog;
b481de9c
ZY		 2952}
2953
4e39317d 2954static void iwl_cancel_deferred_work(struct iwl_priv *priv)
b481de9c 2955{
90c300cb
WYG		 2956 if (priv->cfg->lib->cancel_deferred_work)
2957 priv->cfg->lib->cancel_deferred_work(priv);
b481de9c 2958
815e629b 2959 cancel_work_sync(&priv->run_time_calib_work);
b481de9c 2960 cancel_work_sync(&priv->beacon_update);
e7e16b90
SG		 2961
2962 iwl_cancel_scan_deferred_work(priv);
2963
bee008b7 2964 cancel_work_sync(&priv->bt_full_concurrency);
fbba9410 2965 cancel_work_sync(&priv->bt_runtime_config);
c6baf7fb 2966 cancel_delayed_work_sync(&priv->hw_roc_disable_work);
e7e16b90 2967
4e39317d 2968 del_timer_sync(&priv->statistics_periodic);
a9e1cb6a 2969 del_timer_sync(&priv->ucode_trace);
b481de9c
ZY		 2970}
2971
89f186a8
RC		 2972static void iwl_init_hw_rates(struct iwl_priv *priv,
2973 struct ieee80211_rate *rates)
2974{
2975 int i;
2976
2977 for (i = 0; i < IWL_RATE_COUNT_LEGACY; i++) {
2978 rates[i].bitrate = iwl_rates[i].ieee * 5;
2979 rates[i].hw_value = i; /* Rate scaling will work on indexes */
2980 rates[i].hw_value_short = i;
2981 rates[i].flags = 0;
2982 if ((i >= IWL_FIRST_CCK_RATE) && (i <= IWL_LAST_CCK_RATE)) {
2983 /*
2984 * If CCK != 1M then set short preamble rate flag.
2985 */
2986 rates[i].flags |=
2987 (iwl_rates[i].plcp == IWL_RATE_1M_PLCP) ?
2988 0 : IEEE80211_RATE_SHORT_PREAMBLE;
2989 }
2990 }
2991}
2992
2993static int iwl_init_drv(struct iwl_priv *priv)
2994{
2995 int ret;
2996
f39c95e8 2997 spin_lock_init(&priv->shrd->sta_lock);
89f186a8 2998
6ac2f839 2999 mutex_init(&priv->shrd->mutex);
89f186a8 3000
89f186a8
RC		 3001 priv->ieee_channels = NULL;
3002 priv->ieee_rates = NULL;
3003 priv->band = IEEE80211_BAND_2GHZ;
3004
3005 priv->iw_mode = NL80211_IFTYPE_STATION;
ba37a3d0 3006 priv->current_ht_config.smps = IEEE80211_SMPS_STATIC;
a13d276f 3007 priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF;
898ed67b 3008 priv->agg_tids_count = 0;
89f186a8 3009
8a472da4
WYG		 3010 /* initialize force reset */
3011 priv->force_reset[IWL_RF_RESET].reset_duration =
3012 IWL_DELAY_NEXT_FORCE_RF_RESET;
3013 priv->force_reset[IWL_FW_RESET].reset_duration =
3014 IWL_DELAY_NEXT_FORCE_FW_RELOAD;
89f186a8 3015
410f2bb3
SG		 3016 priv->rx_statistics_jiffies = jiffies;
3017
89f186a8 3018 /* Choose which receivers/antennas to use */
e3f10cea 3019 iwlagn_set_rxon_chain(priv, &priv->contexts[IWL_RXON_CTX_BSS]);
89f186a8
RC		 3020
3021 iwl_init_scan_params(priv);
3022
22bf59a0 3023 /* init bt coex */
7cb1b088
WYG		 3024 if (priv->cfg->bt_params &&
3025 priv->cfg->bt_params->advanced_bt_coexist) {
b6e116e8
WYG		 3026 priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT;
3027 priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT;
3028 priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK;
22bf59a0
WYG		 3029 priv->bt_on_thresh = BT_ON_THRESHOLD_DEF;
3030 priv->bt_duration = BT_DURATION_LIMIT_DEF;
3031 priv->dynamic_frag_thresh = BT_FRAG_THRESHOLD_DEF;
22bf59a0
WYG		 3032 }
3033
89f186a8
RC		 3034 ret = iwl_init_channel_map(priv);
3035 if (ret) {
3036 IWL_ERR(priv, "initializing regulatory failed: %d\n", ret);
3037 goto err;
3038 }
3039
b39488a9 3040 ret = iwl_init_geos(priv);
89f186a8
RC		 3041 if (ret) {
3042 IWL_ERR(priv, "initializing geos failed: %d\n", ret);
3043 goto err_free_channel_map;
3044 }
3045 iwl_init_hw_rates(priv, priv->ieee_rates);
3046
3047 return 0;
3048
3049err_free_channel_map:
3050 iwl_free_channel_map(priv);
3051err:
3052 return ret;
3053}
3054
3055static void iwl_uninit_drv(struct iwl_priv *priv)
3056{
3057 iwl_calib_free_results(priv);
b39488a9 3058 iwl_free_geos(priv);
89f186a8 3059 iwl_free_channel_map(priv);
dfa2bdba
EG		 3060 if (priv->tx_cmd_pool)
3061 kmem_cache_destroy(priv->tx_cmd_pool);
811ecc99 3062 kfree(priv->scan_cmd);
4ce7cc2b 3063 kfree(priv->beacon_cmd);
c8ac61cf
JB		 3064#ifdef CONFIG_IWLWIFI_DEBUGFS
3065 kfree(priv->wowlan_sram);
3066#endif
89f186a8
RC		 3067}
3068
ade4c649 3069static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw,
207ecc5e
MV		 3070 enum ieee80211_rssi_event rssi_event)
3071{
3072 struct iwl_priv *priv = hw->priv;
3073
770c72c4 3074 IWL_DEBUG_MAC80211(priv, "enter\n");
6ac2f839 3075 mutex_lock(&priv->shrd->mutex);
207ecc5e
MV		 3076
3077 if (priv->cfg->bt_params &&
3078 priv->cfg->bt_params->advanced_bt_coexist) {
3079 if (rssi_event == RSSI_EVENT_LOW)
3080 priv->bt_enable_pspoll = true;
3081 else if (rssi_event == RSSI_EVENT_HIGH)
3082 priv->bt_enable_pspoll = false;
3083
3084 iwlagn_send_advance_bt_config(priv);
3085 } else {
3086 IWL_DEBUG_MAC80211(priv, "Advanced BT coex disabled,"
3087 "ignoring RSSI callback\n");
3088 }
3089
6ac2f839 3090 mutex_unlock(&priv->shrd->mutex);
770c72c4 3091 IWL_DEBUG_MAC80211(priv, "leave\n");
207ecc5e
MV		 3092}
3093
ade4c649 3094static int iwlagn_mac_set_tim(struct ieee80211_hw *hw,
3bde2b68
JB		 3095 struct ieee80211_sta *sta, bool set)
3096{
3097 struct iwl_priv *priv = hw->priv;
3098
3099 queue_work(priv->shrd->workqueue, &priv->beacon_update);
3100
3101 return 0;
3102}
3103
dc21b545 3104struct ieee80211_ops iwlagn_hw_ops = {
2295c66b
JB		 3105 .tx = iwlagn_mac_tx,
3106 .start = iwlagn_mac_start,
3107 .stop = iwlagn_mac_stop,
c01a4047 3108#ifdef CONFIG_PM_SLEEP
c8ac61cf
JB		 3109 .suspend = iwlagn_mac_suspend,
3110 .resume = iwlagn_mac_resume,
26293133 3111#endif
ade4c649
WYG		 3112 .add_interface = iwlagn_mac_add_interface,
3113 .remove_interface = iwlagn_mac_remove_interface,
3114 .change_interface = iwlagn_mac_change_interface,
2295c66b 3115 .config = iwlagn_mac_config,
8b8ab9d5 3116 .configure_filter = iwlagn_configure_filter,
2295c66b
JB		 3117 .set_key = iwlagn_mac_set_key,
3118 .update_tkip_key = iwlagn_mac_update_tkip_key,
c8ac61cf 3119 .set_rekey_data = iwlagn_mac_set_rekey_data,
ade4c649 3120 .conf_tx = iwlagn_mac_conf_tx,
2295c66b
JB		 3121 .bss_info_changed = iwlagn_bss_info_changed,
3122 .ampdu_action = iwlagn_mac_ampdu_action,
ade4c649 3123 .hw_scan = iwlagn_mac_hw_scan,
2295c66b 3124 .sta_notify = iwlagn_mac_sta_notify,
fe6b23dd 3125 .sta_add = iwlagn_mac_sta_add,
ade4c649 3126 .sta_remove = iwlagn_mac_sta_remove,
2295c66b
JB		 3127 .channel_switch = iwlagn_mac_channel_switch,
3128 .flush = iwlagn_mac_flush,
ade4c649
WYG		 3129 .tx_last_beacon = iwlagn_mac_tx_last_beacon,
3130 .remain_on_channel = iwlagn_mac_remain_on_channel,
3131 .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel,
3132 .rssi_callback = iwlagn_mac_rssi_callback,
3133 CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd)
3134 CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump)
3135 .tx_sync = iwlagn_mac_tx_sync,
3136 .finish_tx_sync = iwlagn_mac_finish_tx_sync,
3137 .set_tim = iwlagn_mac_set_tim,
b481de9c
ZY		 3138};
3139
e98a1302 3140static u32 iwl_hw_detect(struct iwl_priv *priv)
3867fe04 3141{
83ed9015 3142 return iwl_read32(bus(priv), CSR_HW_REV);
3867fe04
WYG		 3143}
3144
dda61a44
EG		 3145/* Size of one Rx buffer in host DRAM */
3146#define IWL_RX_BUF_SIZE_4K (4 * 1024)
3147#define IWL_RX_BUF_SIZE_8K (8 * 1024)
3148
07d4f1ad
WYG		 3149static int iwl_set_hw_params(struct iwl_priv *priv)
3150{
9d143e9a 3151 if (iwlagn_mod_params.amsdu_size_8K)
d6189124
EG		 3152 hw_params(priv).rx_page_order =
3153 get_order(IWL_RX_BUF_SIZE_8K);
07d4f1ad 3154 else
d6189124
EG		 3155 hw_params(priv).rx_page_order =
3156 get_order(IWL_RX_BUF_SIZE_4K);
07d4f1ad 3157
9d143e9a 3158 if (iwlagn_mod_params.disable_11n)
88950758 3159 priv->cfg->sku &= ~EEPROM_SKU_CAP_11N_ENABLE;
07d4f1ad 3160
fd656935
EG		 3161 hw_params(priv).num_ampdu_queues =
3162 priv->cfg->base_params->num_of_ampdu_queues;
3163 hw_params(priv).shadow_reg_enable =
3164 priv->cfg->base_params->shadow_reg_enable;
f22be624
EG		 3165 hw_params(priv).sku = priv->cfg->sku;
3166 hw_params(priv).wd_timeout = priv->cfg->base_params->wd_timeout;
fd656935 3167
07d4f1ad 3168 /* Device-specific setup */
90c300cb 3169 return priv->cfg->lib->set_hw_params(priv);
07d4f1ad
WYG		 3170}
3171
119ea186
WYG		 3172/* This function both allocates and initializes hw and priv. */
3173static struct ieee80211_hw *iwl_alloc_all(struct iwl_cfg *cfg)
3174{
3175 struct iwl_priv *priv;
3176 /* mac80211 allocates memory for this device instance, including
3177 * space for this driver's private structure */
3178 struct ieee80211_hw *hw;
3179
3180 hw = ieee80211_alloc_hw(sizeof(struct iwl_priv), &iwlagn_hw_ops);
3181 if (hw == NULL) {
3182 pr_err("%s: Can not allocate network device\n",
3183 cfg->name);
3184 goto out;
3185 }
3186
3187 priv = hw->priv;
3188 priv->hw = hw;
3189
3190out:
3191 return hw;
3192}
3193
e6bb4c9c
EG		 3194int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
3195 struct iwl_cfg *cfg)
b2ea345e
WYG		 3196{
3197 int err = 0;
3198 struct iwl_priv *priv;
3199 struct ieee80211_hw *hw;
084dd791 3200 u16 num_mac;
b2ea345e
WYG		 3201 u32 hw_rev;
3202
3203 /************************
3204 * 1. Allocating HW data
3205 ************************/
b2ea345e
WYG		 3206 hw = iwl_alloc_all(cfg);
3207 if (!hw) {
3208 err = -ENOMEM;
807caf26
EG		 3209 goto out;
3210 }
3211
b2ea345e 3212 priv = hw->priv;
cac988a6 3213 priv->shrd = &priv->_shrd;
18d0077f 3214 bus->shrd = priv->shrd;
cac988a6
EG		 3215 priv->shrd->bus = bus;
3216 priv->shrd->priv = priv;
a48709c5 3217
e6bb4c9c
EG		 3218 priv->shrd->trans = trans_ops->alloc(priv->shrd);
3219 if (priv->shrd->trans == NULL) {
3220 err = -ENOMEM;
3221 goto out_free_traffic_mem;
3222 }
3223
b2ea345e 3224 /* At this point both hw and priv are allocated. */
8f2d3d2a 3225
26bfc0cf 3226 SET_IEEE80211_DEV(hw, bus(priv)->dev);
b481de9c 3227
e1623446 3228 IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
82b9a121 3229 priv->cfg = cfg;
316c30d9 3230
bee008b7
WYG		 3231 /* is antenna coupling more than 35dB ? */
3232 priv->bt_ant_couple_ok =
48f20d35
EG		 3233 (iwlagn_mod_params.ant_coupling >
3234 IWL_BT_ANTENNA_COUPLING_THRESHOLD) ?
3235 true : false;
bee008b7 3236
9f28ebc3 3237 /* enable/disable bt channel inhibition */
48f20d35 3238 priv->bt_ch_announce = iwlagn_mod_params.bt_ch_announce;
9f28ebc3
WYG		 3239 IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n",
3240 (priv->bt_ch_announce) ? "On" : "Off");
f37837c9 3241
20594eb0
WYG		 3242 if (iwl_alloc_traffic_mem(priv))
3243 IWL_ERR(priv, "Not enough memory to generate traffic log\n");
b481de9c 3244
731a29b7 3245 /* these spin locks will be used in apm_ops.init and EEPROM access
a8b50a0a
MA		 3246 * we should init now
3247 */
83ed9015 3248 spin_lock_init(&bus(priv)->reg_lock);
10b15e6f 3249 spin_lock_init(&priv->shrd->lock);
4843b5a7
RC		 3250
3251 /*
3252 * stop and reset the on-board processor just in case it is in a
3253 * strange state ... like being left stranded by a primary kernel
3254 * and this is now the kdump kernel trying to start up
3255 */
83ed9015 3256 iwl_write32(bus(priv), CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET);
4843b5a7 3257
084dd791
EG		 3258 /***********************
3259 * 3. Read REV register
3260 ***********************/
e98a1302 3261 hw_rev = iwl_hw_detect(priv);
c11362c0 3262 IWL_INFO(priv, "Detected %s, REV=0x%X\n",
e98a1302 3263 priv->cfg->name, hw_rev);
316c30d9 3264
e6bb4c9c 3265 err = iwl_trans_request_irq(trans(priv));
1e89cbac 3266 if (err)
e6bb4c9c 3267 goto out_free_trans;
1e89cbac 3268
e6bb4c9c 3269 if (iwl_trans_prepare_card_hw(trans(priv))) {
bcd4fe2f 3270 err = -EIO;
086ed117 3271 IWL_WARN(priv, "Failed, HW not ready\n");
1e89cbac 3272 goto out_free_trans;
086ed117
MA		 3273 }
3274
91238714
TW		 3275 /*****************
3276 * 4. Read EEPROM
3277 *****************/
316c30d9 3278 /* Read the EEPROM */
e98a1302 3279 err = iwl_eeprom_init(priv, hw_rev);
316c30d9 3280 if (err) {
15b1687c 3281 IWL_ERR(priv, "Unable to init EEPROM\n");
1e89cbac 3282 goto out_free_trans;
316c30d9 3283 }
8614f360
TW		 3284 err = iwl_eeprom_check_version(priv);
3285 if (err)
c8f16138 3286 goto out_free_eeprom;
8614f360 3287
21a5b3c6
WYG		 3288 err = iwl_eeprom_check_sku(priv);
3289 if (err)
3290 goto out_free_eeprom;
3291
02883017 3292 /* extract MAC Address */
c6fa17ed
WYG		 3293 iwl_eeprom_get_mac(priv, priv->addresses[0].addr);
3294 IWL_DEBUG_INFO(priv, "MAC address: %pM\n", priv->addresses[0].addr);
3295 priv->hw->wiphy->addresses = priv->addresses;
3296 priv->hw->wiphy->n_addresses = 1;
3297 num_mac = iwl_eeprom_query16(priv, EEPROM_NUM_MAC_ADDRESS);
3298 if (num_mac > 1) {
3299 memcpy(priv->addresses[1].addr, priv->addresses[0].addr,
3300 ETH_ALEN);
3301 priv->addresses[1].addr[5]++;
3302 priv->hw->wiphy->n_addresses++;
3303 }
316c30d9
AK		 3304
3305 /************************
3306 * 5. Setup HW constants
3307 ************************/
da154e30 3308 if (iwl_set_hw_params(priv)) {
084dd791 3309 err = -ENOENT;
15b1687c 3310 IWL_ERR(priv, "failed to set hw parameters\n");
073d3f5f 3311 goto out_free_eeprom;
316c30d9
AK		 3312 }
3313
3314 /*******************
6ba87956 3315 * 6. Setup priv
316c30d9 3316 *******************/
b481de9c 3317
6ba87956 3318 err = iwl_init_drv(priv);
bf85ea4f 3319 if (err)
399f4900 3320 goto out_free_eeprom;
bf85ea4f 3321 /* At this point both hw and priv are initialized. */
316c30d9 3322
316c30d9 3323 /********************
09f9bf79 3324 * 7. Setup services
316c30d9 3325 ********************/
4e39317d 3326 iwl_setup_deferred_work(priv);
653fa4a0 3327 iwl_setup_rx_handlers(priv);
4613e72d 3328 iwl_testmode_init(priv);
316c30d9 3329
158bea07 3330 /*********************************************
084dd791 3331 * 8. Enable interrupts
158bea07 3332 *********************************************/
6ba87956 3333
554d1d02 3334 iwl_enable_rfkill_int(priv);
6cd0b1cb 3335
6cd0b1cb 3336 /* If platform's RF_KILL switch is NOT set to KILL */
83ed9015
EG		 3337 if (iwl_read32(bus(priv),
3338 CSR_GP_CNTRL) & CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW)
63013ae3 3339 clear_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
6cd0b1cb 3340 else
63013ae3 3341 set_bit(STATUS_RF_KILL_HW, &priv->shrd->status);
6ba87956 3342
a60e77e5 3343 wiphy_rfkill_set_hw_state(priv->hw->wiphy,
63013ae3 3344 test_bit(STATUS_RF_KILL_HW, &priv->shrd->status));
6cd0b1cb 3345
58d0f361 3346 iwl_power_initialize(priv);
39b73fb1 3347 iwl_tt_initialize(priv);
158bea07 3348
898ed67b 3349 init_completion(&priv->firmware_loading_complete);
562db532 3350
b08dfd04 3351 err = iwl_request_firmware(priv, true);
158bea07 3352 if (err)
7d47618a 3353 goto out_destroy_workqueue;
158bea07 3354
b481de9c
ZY		 3355 return 0;
3356
34c1b7ba 3357out_destroy_workqueue:
74e28e44
EG		 3358 destroy_workqueue(priv->shrd->workqueue);
3359 priv->shrd->workqueue = NULL;
6ba87956 3360 iwl_uninit_drv(priv);
34c1b7ba 3361out_free_eeprom:
073d3f5f 3362 iwl_eeprom_free(priv);
1e89cbac 3363out_free_trans:
e6bb4c9c 3364 iwl_trans_free(trans(priv));
34c1b7ba 3365out_free_traffic_mem:
20594eb0 3366 iwl_free_traffic_mem(priv);
d7c76f4c 3367 ieee80211_free_hw(priv->hw);
34c1b7ba 3368out:
b481de9c
ZY		 3369 return err;
3370}
3371
a48709c5 3372void __devexit iwl_remove(struct iwl_priv * priv)
b481de9c 3373{
898ed67b 3374 wait_for_completion(&priv->firmware_loading_complete);
562db532 3375
e1623446 3376 IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n");
b481de9c 3377
67249625 3378 iwl_dbgfs_unregister(priv);
67249625 3379
ade4c649 3380 /* ieee80211_unregister_hw call wil cause iwlagn_mac_stop to
5b9f8cd3 3381 * to be called and iwl_down since we are removing the device
0b124c31
GG		 3382 * we need to set STATUS_EXIT_PENDING bit.
3383 */
63013ae3 3384 set_bit(STATUS_EXIT_PENDING, &priv->shrd->status);
5ed540ae 3385
7a4e5281 3386 iwl_testmode_cleanup(priv);
5ed540ae
WYG		 3387 iwl_leds_exit(priv);
3388
859cfb0a 3389 if (priv->mac80211_registered) {
c4f55232 3390 ieee80211_unregister_hw(priv->hw);
859cfb0a 3391 priv->mac80211_registered = 0;
c4f55232
RR		 3392 }
3393
39b73fb1
WYG		 3394 iwl_tt_exit(priv);
3395
ae2c30bf
EG		 3396 /*This will stop the queues, move the device to low power state */
3397 iwl_trans_stop_device(trans(priv));
0359facc 3398
3599d39a 3399 iwl_dealloc_ucode(priv);
b481de9c 3400
073d3f5f 3401 iwl_eeprom_free(priv);
b481de9c 3402
948c171c 3403 /*netif_stop_queue(dev); */
74e28e44 3404 flush_workqueue(priv->shrd->workqueue);
948c171c 3405
ade4c649 3406 /* ieee80211_unregister_hw calls iwlagn_mac_stop, which flushes
74e28e44 3407 * priv->shrd->workqueue... so we can't take down the workqueue
b481de9c 3408 * until now... */
74e28e44
EG		 3409 destroy_workqueue(priv->shrd->workqueue);
3410 priv->shrd->workqueue = NULL;
20594eb0 3411 iwl_free_traffic_mem(priv);
b481de9c 3412
e6bb4c9c 3413 iwl_trans_free(trans(priv));
34c1b7ba 3414
6ba87956 3415 iwl_uninit_drv(priv);
b481de9c 3416
77834543 3417 dev_kfree_skb(priv->beacon_skb);
b481de9c
ZY		 3418
3419 ieee80211_free_hw(priv->hw);
3420}
3421
b481de9c
ZY		 3422
3423/*****************************************************************************
3424 *
3425 * driver and module entry point
3426 *
3427 *****************************************************************************/
5b9f8cd3 3428static int __init iwl_init(void)
b481de9c
ZY		 3429{
3430
3431 int ret;
c96c31e4
JP		 3432 pr_info(DRV_DESCRIPTION ", " DRV_VERSION "\n");
3433 pr_info(DRV_COPYRIGHT "\n");
897e1cf2 3434
e227ceac 3435 ret = iwlagn_rate_control_register();
897e1cf2 3436 if (ret) {
c96c31e4 3437 pr_err("Unable to register rate control algorithm: %d\n", ret);
897e1cf2
RC		 3438 return ret;
3439 }
3440
48d1a211 3441 ret = iwl_pci_register_driver();
b481de9c 3442
48d1a211
EG		 3443 if (ret)
3444 goto error_register;
b481de9c 3445 return ret;
897e1cf2 3446
897e1cf2 3447error_register:
e227ceac 3448 iwlagn_rate_control_unregister();
897e1cf2 3449 return ret;
b481de9c
ZY		 3450}
3451
5b9f8cd3 3452static void __exit iwl_exit(void)
b481de9c 3453{
48d1a211 3454 iwl_pci_unregister_driver();
e227ceac 3455 iwlagn_rate_control_unregister();
b481de9c
ZY		 3456}
3457
5b9f8cd3
EG		 3458module_exit(iwl_exit);
3459module_init(iwl_init);
a562a9dd
RC		 3460
3461#ifdef CONFIG_IWLWIFI_DEBUG
48f20d35
EG		 3462module_param_named(debug, iwlagn_mod_params.debug_level, uint,
3463 S_IRUGO | S_IWUSR);
a562a9dd
RC		 3464MODULE_PARM_DESC(debug, "debug output mask");
3465#endif
3466
2b068618
WYG		 3467module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO);
3468MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
2b068618
WYG		 3469module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO);
3470MODULE_PARM_DESC(queues_num, "number of hw queues.");
2b068618
WYG		 3471module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO);
3472MODULE_PARM_DESC(11n_disable, "disable 11n functionality");
2b068618
WYG		 3473module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K,
3474 int, S_IRUGO);
3475MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size");
2b068618
WYG		 3476module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO);
3477MODULE_PARM_DESC(fw_restart, "restart firmware in case of error");
dd7a2509 3478
48f20d35
EG		 3479module_param_named(ucode_alternative,
3480 iwlagn_mod_params.wanted_ucode_alternative,
3481 int, S_IRUGO);
dd7a2509
JB		 3482MODULE_PARM_DESC(ucode_alternative,
3483 "specify ucode alternative to use from ucode file");
bee008b7 3484
48f20d35
EG		 3485module_param_named(antenna_coupling, iwlagn_mod_params.ant_coupling,
3486 int, S_IRUGO);
bee008b7
WYG		 3487MODULE_PARM_DESC(antenna_coupling,
3488 "specify antenna coupling in dB (defualt: 0 dB)");
f37837c9 3489
48f20d35
EG		 3490module_param_named(bt_ch_inhibition, iwlagn_mod_params.bt_ch_announce,
3491 bool, S_IRUGO);
9f28ebc3 3492MODULE_PARM_DESC(bt_ch_inhibition,
fee84f0d 3493 "Enable BT channel inhibition (default: enable)");
b7977ffa
SG		 3494
3495module_param_named(plcp_check, iwlagn_mod_params.plcp_check, bool, S_IRUGO);
3496MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])");
3497
3498module_param_named(ack_check, iwlagn_mod_params.ack_check, bool, S_IRUGO);
3499MODULE_PARM_DESC(ack_check, "Check ack health (default: 0 [disabled])");
b60eec9b 3500
300d0834
WYG		 3501module_param_named(wd_disable, iwlagn_mod_params.wd_disable, bool, S_IRUGO);
3502MODULE_PARM_DESC(wd_disable,
3503 "Disable stuck queue watchdog timer (default: 0 [enabled])");
3504
b60eec9b
WYG		 3505/*
3506 * set bt_coex_active to true, uCode will do kill/defer
3507 * every time the priority line is asserted (BT is sending signals on the
3508 * priority line in the PCIx).
3509 * set bt_coex_active to false, uCode will ignore the BT activity and
3510 * perform the normal operation
3511 *
3512 * User might experience transmit issue on some platform due to WiFi/BT
3513 * co-exist problem. The possible behaviors are:
3514 * Able to scan and finding all the available AP
3515 * Not able to associate with any AP
3516 * On those platforms, WiFi communication can be restored by set
3517 * "bt_coex_active" module parameter to "false"
3518 *
3519 * default: bt_coex_active = true (BT_COEX_ENABLE)
3520 */
3521module_param_named(bt_coex_active, iwlagn_mod_params.bt_coex_active,
3522 bool, S_IRUGO);
3523MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
6b0184c4
WYG		 3524
3525module_param_named(led_mode, iwlagn_mod_params.led_mode, int, S_IRUGO);
3526MODULE_PARM_DESC(led_mode, "0=system default, "
3527 "1=On(RF On)/Off(RF Off), 2=blinking (default: 0)");
3f1e5f4a 3528
0172b029
WYG		 3529module_param_named(power_save, iwlagn_mod_params.power_save,
3530 bool, S_IRUGO);
3531MODULE_PARM_DESC(power_save,
3532 "enable WiFi power management (default: disable)");
3533
f7538168
WYG		 3534module_param_named(power_level, iwlagn_mod_params.power_level,
3535 int, S_IRUGO);
3536MODULE_PARM_DESC(power_level,
3537 "default power save level (range from 1 - 5, default: 1)");
3538
dd5b6d0a
WYG		 3539module_param_named(auto_agg, iwlagn_mod_params.auto_agg,
3540 bool, S_IRUGO);
3541MODULE_PARM_DESC(auto_agg,
3542 "enable agg w/o check traffic load (default: enable)");
3543
3f1e5f4a
WYG		 3544/*
3545 * For now, keep using power level 1 instead of automatically
3546 * adjusting ...
3547 */
3548module_param_named(no_sleep_autoadjust, iwlagn_mod_params.no_sleep_autoadjust,
3549 bool, S_IRUGO);
3550MODULE_PARM_DESC(no_sleep_autoadjust,
3551 "don't automatically adjust sleep level "
3552 "according to maximum network latency (default: true)");
Linux kernel - Deliverables
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