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wlcore/wl18xx/wl12xx: separate channel count between chips
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / ti / wlcore / main.c
CommitLineData
f1d63a59 1
f5fc0f86
LC		 2/*
3 * This file is part of wl1271
4 *
8bf29b0e 5 * Copyright (C) 2008-2010 Nokia Corporation
f5fc0f86
LC		 6 *
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 as published by the Free Software Foundation.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 *
23 */
24
25#include <linux/module.h>
f5fc0f86
LC		 26#include <linux/firmware.h>
27#include <linux/delay.h>
f5fc0f86
LC		 28#include <linux/spi/spi.h>
29#include <linux/crc32.h>
30#include <linux/etherdevice.h>
1fba4974 31#include <linux/vmalloc.h>
a1dd8187 32#include <linux/platform_device.h>
5a0e3ad6 33#include <linux/slab.h>
341b7cde 34#include <linux/wl12xx.h>
95dac04f 35#include <linux/sched.h>
a390e85c 36#include <linux/interrupt.h>
f5fc0f86 37
c31be25a 38#include "wlcore.h"
0f4e3122 39#include "debug.h"
f5fc0f86 40#include "wl12xx_80211.h"
00d20100
SL		 41#include "io.h"
42#include "event.h"
43#include "tx.h"
44#include "rx.h"
45#include "ps.h"
46#include "init.h"
47#include "debugfs.h"
48#include "cmd.h"
49#include "boot.h"
50#include "testmode.h"
51#include "scan.h"
53d67a50 52#include "hw_ops.h"
f5fc0f86 53
9ccd9217
JO		 54#define WL1271_BOOT_RETRIES 3
55
e87288f0 56#define WL1271_BOOT_RETRIES 3
8a08048a 57
95dac04f 58static char *fwlog_param;
2a5bff09 59static bool bug_on_recovery;
34785be5 60static bool no_recovery;
95dac04f 61
7dece1c8 62static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 63 struct ieee80211_vif *vif,
7dece1c8 64 bool reset_tx_queues);
c24ec83b 65static void wlcore_op_stop_locked(struct wl1271 *wl);
170d0e67 66static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif);
52b0e7a6 67
9fd6f21b
EP		 68static int wl12xx_set_authorized(struct wl1271 *wl,
69 struct wl12xx_vif *wlvif)
ef4b29e9
EP		 70{
71 int ret;
0603d891 72
9fd6f21b
EP		 73 if (WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS))
74 return -EINVAL;
75
76 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
ef4b29e9
EP		 77 return 0;
78
8181aecc 79 if (test_and_set_bit(WLVIF_FLAG_STA_STATE_SENT, &wlvif->flags))
ef4b29e9
EP		 80 return 0;
81
d50529c0 82 ret = wl12xx_cmd_set_peer_state(wl, wlvif, wlvif->sta.hlid);
ef4b29e9
EP		 83 if (ret < 0)
84 return ret;
85
86 wl1271_info("Association completed.");
87 return 0;
88}
c2c192ac 89
b7417d93 90static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 91 struct regulatory_request *request)
92{
b7417d93
JO		 93 struct ieee80211_supported_band *band;
94 struct ieee80211_channel *ch;
95 int i;
6b70e7eb
VG		 96 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
97 struct wl1271 *wl = hw->priv;
b7417d93
JO		 98
99 band = wiphy->bands[IEEE80211_BAND_5GHZ];
100 for (i = 0; i < band->n_channels; i++) {
101 ch = &band->channels[i];
102 if (ch->flags & IEEE80211_CHAN_DISABLED)
103 continue;
104
105 if (ch->flags & IEEE80211_CHAN_RADAR)
106 ch->flags |= IEEE80211_CHAN_NO_IBSS |
107 IEEE80211_CHAN_PASSIVE_SCAN;
108
109 }
110
6b70e7eb
VG		 111 if (likely(wl->state == WLCORE_STATE_ON))
112 wlcore_regdomain_config(wl);
113
b7417d93
JO		 114 return 0;
115}
116
9eb599e9
EP		 117static int wl1271_set_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif,
118 bool enable)
77ddaa10
EP		 119{
120 int ret = 0;
121
122 /* we should hold wl->mutex */
9eb599e9 123 ret = wl1271_acx_ps_rx_streaming(wl, wlvif, enable);
77ddaa10
EP		 124 if (ret < 0)
125 goto out;
126
127 if (enable)
0744bdb6 128 set_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
77ddaa10 129 else
0744bdb6 130 clear_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
77ddaa10
EP		 131out:
132 return ret;
133}
134
135/*
136 * this function is being called when the rx_streaming interval
137 * has beed changed or rx_streaming should be disabled
138 */
9eb599e9 139int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif)
77ddaa10
EP		 140{
141 int ret = 0;
142 int period = wl->conf.rx_streaming.interval;
143
144 /* don't reconfigure if rx_streaming is disabled */
0744bdb6 145 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
77ddaa10
EP		 146 goto out;
147
148 /* reconfigure/disable according to new streaming_period */
149 if (period &&
ba8447f6 150 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
77ddaa10
EP		 151 (wl->conf.rx_streaming.always ||
152 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
9eb599e9 153 ret = wl1271_set_rx_streaming(wl, wlvif, true);
77ddaa10 154 else {
9eb599e9 155 ret = wl1271_set_rx_streaming(wl, wlvif, false);
77ddaa10 156 /* don't cancel_work_sync since we might deadlock */
9eb599e9 157 del_timer_sync(&wlvif->rx_streaming_timer);
77ddaa10
EP		 158 }
159out:
160 return ret;
161}
162
163static void wl1271_rx_streaming_enable_work(struct work_struct *work)
164{
165 int ret;
9eb599e9
EP		 166 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
167 rx_streaming_enable_work);
168 struct wl1271 *wl = wlvif->wl;
77ddaa10
EP		 169
170 mutex_lock(&wl->mutex);
171
0744bdb6 172 if (test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags) ||
ba8447f6 173 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
77ddaa10
EP		 174 (!wl->conf.rx_streaming.always &&
175 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
176 goto out;
177
178 if (!wl->conf.rx_streaming.interval)
179 goto out;
180
181 ret = wl1271_ps_elp_wakeup(wl);
182 if (ret < 0)
183 goto out;
184
9eb599e9 185 ret = wl1271_set_rx_streaming(wl, wlvif, true);
77ddaa10
EP		 186 if (ret < 0)
187 goto out_sleep;
188
189 /* stop it after some time of inactivity */
9eb599e9 190 mod_timer(&wlvif->rx_streaming_timer,
77ddaa10
EP		 191 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
192
193out_sleep:
194 wl1271_ps_elp_sleep(wl);
195out:
196 mutex_unlock(&wl->mutex);
197}
198
199static void wl1271_rx_streaming_disable_work(struct work_struct *work)
200{
201 int ret;
9eb599e9
EP		 202 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
203 rx_streaming_disable_work);
204 struct wl1271 *wl = wlvif->wl;
77ddaa10
EP		 205
206 mutex_lock(&wl->mutex);
207
0744bdb6 208 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
77ddaa10
EP		 209 goto out;
210
211 ret = wl1271_ps_elp_wakeup(wl);
212 if (ret < 0)
213 goto out;
214
9eb599e9 215 ret = wl1271_set_rx_streaming(wl, wlvif, false);
77ddaa10
EP		 216 if (ret)
217 goto out_sleep;
218
219out_sleep:
220 wl1271_ps_elp_sleep(wl);
221out:
222 mutex_unlock(&wl->mutex);
223}
224
225static void wl1271_rx_streaming_timer(unsigned long data)
226{
9eb599e9
EP		 227 struct wl12xx_vif *wlvif = (struct wl12xx_vif *)data;
228 struct wl1271 *wl = wlvif->wl;
229 ieee80211_queue_work(wl->hw, &wlvif->rx_streaming_disable_work);
77ddaa10
EP		 230}
231
55df5afb
AN		 232/* wl->mutex must be taken */
233void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl)
234{
235 /* if the watchdog is not armed, don't do anything */
236 if (wl->tx_allocated_blocks == 0)
237 return;
238
239 cancel_delayed_work(&wl->tx_watchdog_work);
240 ieee80211_queue_delayed_work(wl->hw, &wl->tx_watchdog_work,
241 msecs_to_jiffies(wl->conf.tx.tx_watchdog_timeout));
242}
243
244static void wl12xx_tx_watchdog_work(struct work_struct *work)
245{
246 struct delayed_work *dwork;
247 struct wl1271 *wl;
248
249 dwork = container_of(work, struct delayed_work, work);
250 wl = container_of(dwork, struct wl1271, tx_watchdog_work);
251
252 mutex_lock(&wl->mutex);
253
4cc53383 254 if (unlikely(wl->state != WLCORE_STATE_ON))
55df5afb
AN		 255 goto out;
256
257 /* Tx went out in the meantime - everything is ok */
258 if (unlikely(wl->tx_allocated_blocks == 0))
259 goto out;
260
261 /*
262 * if a ROC is in progress, we might not have any Tx for a long
263 * time (e.g. pending Tx on the non-ROC channels)
264 */
265 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
266 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to ROC",
267 wl->conf.tx.tx_watchdog_timeout);
268 wl12xx_rearm_tx_watchdog_locked(wl);
269 goto out;
270 }
271
272 /*
273 * if a scan is in progress, we might not have any Tx for a long
274 * time
275 */
276 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
277 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to scan",
278 wl->conf.tx.tx_watchdog_timeout);
279 wl12xx_rearm_tx_watchdog_locked(wl);
280 goto out;
281 }
282
283 /*
284 * AP might cache a frame for a long time for a sleeping station,
285 * so rearm the timer if there's an AP interface with stations. If
286 * Tx is genuinely stuck we will most hopefully discover it when all
287 * stations are removed due to inactivity.
288 */
289 if (wl->active_sta_count) {
290 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms. AP has "
291 " %d stations",
292 wl->conf.tx.tx_watchdog_timeout,
293 wl->active_sta_count);
294 wl12xx_rearm_tx_watchdog_locked(wl);
295 goto out;
296 }
297
298 wl1271_error("Tx stuck (in FW) for %d ms. Starting recovery",
299 wl->conf.tx.tx_watchdog_timeout);
300 wl12xx_queue_recovery_work(wl);
301
302out:
303 mutex_unlock(&wl->mutex);
304}
305
e87288f0 306static void wlcore_adjust_conf(struct wl1271 *wl)
8a08048a 307{
95dac04f
IY		 308 /* Adjust settings according to optional module parameters */
309 if (fwlog_param) {
310 if (!strcmp(fwlog_param, "continuous")) {
311 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
312 } else if (!strcmp(fwlog_param, "ondemand")) {
313 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
314 } else if (!strcmp(fwlog_param, "dbgpins")) {
315 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
316 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
317 } else if (!strcmp(fwlog_param, "disable")) {
318 wl->conf.fwlog.mem_blocks = 0;
319 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
320 } else {
321 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
322 }
323 }
324}
2b60100b 325
6e8cd331
EP		 326static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl,
327 struct wl12xx_vif *wlvif,
328 u8 hlid, u8 tx_pkts)
b622d992 329{
da03209e 330 bool fw_ps, single_sta;
b622d992 331
b622d992 332 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 333 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 334
335 /*
336 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 337 * packets in FW or if the STA is awake.
b622d992 338 */
9b17f1b3 339 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
6e8cd331 340 wl12xx_ps_link_end(wl, wlvif, hlid);
b622d992 341
da03209e
AN		 342 /*
343 * Start high-level PS if the STA is asleep with enough blocks in FW.
344 * Make an exception if this is the only connected station. In this
345 * case FW-memory congestion is not a problem.
346 */
347 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
6e8cd331 348 wl12xx_ps_link_start(wl, wlvif, hlid, true);
b622d992
AN		 349}
350
9b17f1b3 351static void wl12xx_irq_update_links_status(struct wl1271 *wl,
c7ffb902 352 struct wl12xx_vif *wlvif,
0afd04e5 353 struct wl_fw_status_2 *status)
b622d992 354{
c7ffb902 355 struct wl1271_link *lnk;
b622d992 356 u32 cur_fw_ps_map;
9b17f1b3
AN		 357 u8 hlid, cnt;
358
359 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 360
361 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
362 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
363 wl1271_debug(DEBUG_PSM,
364 "link ps prev 0x%x cur 0x%x changed 0x%x",
365 wl->ap_fw_ps_map, cur_fw_ps_map,
366 wl->ap_fw_ps_map ^ cur_fw_ps_map);
367
368 wl->ap_fw_ps_map = cur_fw_ps_map;
369 }
370
c7ffb902
EP		 371 for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS) {
372 lnk = &wl->links[hlid];
6bac40a6
AN		 373 cnt = status->counters.tx_lnk_free_pkts[hlid] -
374 lnk->prev_freed_pkts;
b622d992 375
6bac40a6 376 lnk->prev_freed_pkts = status->counters.tx_lnk_free_pkts[hlid];
c7ffb902 377 lnk->allocated_pkts -= cnt;
9b17f1b3 378
6e8cd331
EP		 379 wl12xx_irq_ps_regulate_link(wl, wlvif, hlid,
380 lnk->allocated_pkts);
b622d992
AN		 381 }
382}
383
8b7c0fc3
IY		 384static int wlcore_fw_status(struct wl1271 *wl,
385 struct wl_fw_status_1 *status_1,
386 struct wl_fw_status_2 *status_2)
f5fc0f86 387{
6e8cd331 388 struct wl12xx_vif *wlvif;
ac5e1e39 389 struct timespec ts;
13b107dd 390 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 391 int avail, freed_blocks;
bf54e301 392 int i;
6bac40a6 393 size_t status_len;
8b7c0fc3 394 int ret;
6bac40a6 395
0afd04e5
AN		 396 status_len = WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
397 sizeof(*status_2) + wl->fw_status_priv_len;
f5fc0f86 398
8b7c0fc3
IY		 399 ret = wlcore_raw_read_data(wl, REG_RAW_FW_STATUS_ADDR, status_1,
400 status_len, false);
401 if (ret < 0)
402 return ret;
13b107dd 403
f5fc0f86
LC		 404 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
405 "drv_rx_counter = %d, tx_results_counter = %d)",
0afd04e5
AN		 406 status_1->intr,
407 status_1->fw_rx_counter,
408 status_1->drv_rx_counter,
409 status_1->tx_results_counter);
f5fc0f86 410
bf54e301
AN		 411 for (i = 0; i < NUM_TX_QUEUES; i++) {
412 /* prevent wrap-around in freed-packets counter */
742246f8 413 wl->tx_allocated_pkts[i] -=
0afd04e5 414 (status_2->counters.tx_released_pkts[i] -
bf54e301
AN		 415 wl->tx_pkts_freed[i]) & 0xff;
416
0afd04e5 417 wl->tx_pkts_freed[i] = status_2->counters.tx_released_pkts[i];
bf54e301
AN		 418 }
419
bdf91cfa
AN		 420 /* prevent wrap-around in total blocks counter */
421 if (likely(wl->tx_blocks_freed <=
0afd04e5
AN		 422 le32_to_cpu(status_2->total_released_blks)))
423 freed_blocks = le32_to_cpu(status_2->total_released_blks) -
bdf91cfa
AN		 424 wl->tx_blocks_freed;
425 else
426 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
0afd04e5 427 le32_to_cpu(status_2->total_released_blks);
bdf91cfa 428
0afd04e5 429 wl->tx_blocks_freed = le32_to_cpu(status_2->total_released_blks);
13b107dd 430
7bb5d6ce
AN		 431 wl->tx_allocated_blocks -= freed_blocks;
432
55df5afb
AN		 433 /*
434 * If the FW freed some blocks:
435 * If we still have allocated blocks - re-arm the timer, Tx is
436 * not stuck. Otherwise, cancel the timer (no Tx currently).
437 */
438 if (freed_blocks) {
439 if (wl->tx_allocated_blocks)
440 wl12xx_rearm_tx_watchdog_locked(wl);
441 else
442 cancel_delayed_work(&wl->tx_watchdog_work);
443 }
444
0afd04e5 445 avail = le32_to_cpu(status_2->tx_total) - wl->tx_allocated_blocks;
13b107dd 446
4d56ad9c
EP		 447 /*
448 * The FW might change the total number of TX memblocks before
449 * we get a notification about blocks being released. Thus, the
450 * available blocks calculation might yield a temporary result
451 * which is lower than the actual available blocks. Keeping in
452 * mind that only blocks that were allocated can be moved from
453 * TX to RX, tx_blocks_available should never decrease here.
454 */
455 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
456 avail);
f5fc0f86 457
a522550a 458 /* if more blocks are available now, tx work can be scheduled */
13b107dd 459 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 460 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 461
4d56ad9c 462 /* for AP update num of allocated TX blocks per link and ps status */
6e8cd331 463 wl12xx_for_each_wlvif_ap(wl, wlvif) {
0afd04e5 464 wl12xx_irq_update_links_status(wl, wlvif, status_2);
6e8cd331 465 }
4d56ad9c 466
f5fc0f86 467 /* update the host-chipset time offset */
ac5e1e39
JO		 468 getnstimeofday(&ts);
469 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
0afd04e5 470 (s64)le32_to_cpu(status_2->fw_localtime);
8b7c0fc3
IY		 471
472 return 0;
f5fc0f86
LC		 473}
474
a620865e
IY		 475static void wl1271_flush_deferred_work(struct wl1271 *wl)
476{
477 struct sk_buff *skb;
478
479 /* Pass all received frames to the network stack */
480 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
481 ieee80211_rx_ni(wl->hw, skb);
482
483 /* Return sent skbs to the network stack */
484 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 485 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 486}
487
488static void wl1271_netstack_work(struct work_struct *work)
489{
490 struct wl1271 *wl =
491 container_of(work, struct wl1271, netstack_work);
492
493 do {
494 wl1271_flush_deferred_work(wl);
495 } while (skb_queue_len(&wl->deferred_rx_queue));
496}
1e73eb62 497
a620865e
IY		 498#define WL1271_IRQ_MAX_LOOPS 256
499
b5b45b3c 500static int wlcore_irq_locked(struct wl1271 *wl)
f5fc0f86 501{
b5b45b3c 502 int ret = 0;
c15f63bf 503 u32 intr;
1e73eb62 504 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 505 bool done = false;
506 unsigned int defer_count;
b07d4037
IY		 507 unsigned long flags;
508
341b7cde
IY		 509 /*
510 * In case edge triggered interrupt must be used, we cannot iterate
511 * more than once without introducing race conditions with the hardirq.
512 */
513 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
514 loopcount = 1;
515
f5fc0f86
LC		 516 wl1271_debug(DEBUG_IRQ, "IRQ work");
517
4cc53383 518 if (unlikely(wl->state != WLCORE_STATE_ON))
f5fc0f86
LC		 519 goto out;
520
a620865e 521 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 522 if (ret < 0)
523 goto out;
524
a620865e
IY		 525 while (!done && loopcount--) {
526 /*
527 * In order to avoid a race with the hardirq, clear the flag
528 * before acknowledging the chip. Since the mutex is held,
529 * wl1271_ps_elp_wakeup cannot be called concurrently.
530 */
531 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
532 smp_mb__after_clear_bit();
1e73eb62 533
8b7c0fc3 534 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
b5b45b3c 535 if (ret < 0)
8b7c0fc3 536 goto out;
53d67a50
AN		 537
538 wlcore_hw_tx_immediate_compl(wl);
539
0afd04e5 540 intr = le32_to_cpu(wl->fw_status_1->intr);
f5755fe9 541 intr &= WLCORE_ALL_INTR_MASK;
1e73eb62 542 if (!intr) {
a620865e 543 done = true;
1e73eb62
JO		 544 continue;
545 }
f5fc0f86 546
ccc83b04 547 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
f5755fe9
IR		 548 wl1271_error("HW watchdog interrupt received! starting recovery.");
549 wl->watchdog_recovery = true;
b5b45b3c 550 ret = -EIO;
f5755fe9
IR		 551
552 /* restarting the chip. ignore any other interrupt. */
553 goto out;
554 }
555
556 if (unlikely(intr & WL1271_ACX_SW_INTR_WATCHDOG)) {
557 wl1271_error("SW watchdog interrupt received! "
ccc83b04 558 "starting recovery.");
afbe3718 559 wl->watchdog_recovery = true;
b5b45b3c 560 ret = -EIO;
ccc83b04
EP		 561
562 /* restarting the chip. ignore any other interrupt. */
563 goto out;
564 }
565
a620865e 566 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 567 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 568
045b9b5f 569 ret = wlcore_rx(wl, wl->fw_status_1);
b5b45b3c 570 if (ret < 0)
045b9b5f 571 goto out;
f5fc0f86 572
a522550a 573 /* Check if any tx blocks were freed */
b07d4037 574 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 575 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 576 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 577 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 578 /*
579 * In order to avoid starvation of the TX path,
580 * call the work function directly.
581 */
eb96f841 582 ret = wlcore_tx_work_locked(wl);
b5b45b3c 583 if (ret < 0)
eb96f841 584 goto out;
b07d4037
IY		 585 } else {
586 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 587 }
588
8aad2464 589 /* check for tx results */
045b9b5f 590 ret = wlcore_hw_tx_delayed_compl(wl);
b5b45b3c 591 if (ret < 0)
045b9b5f 592 goto out;
a620865e
IY		 593
594 /* Make sure the deferred queues don't get too long */
595 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
596 skb_queue_len(&wl->deferred_rx_queue);
597 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
598 wl1271_flush_deferred_work(wl);
1e73eb62 599 }
f5fc0f86 600
1e73eb62
JO		 601 if (intr & WL1271_ACX_INTR_EVENT_A) {
602 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
045b9b5f 603 ret = wl1271_event_handle(wl, 0);
b5b45b3c 604 if (ret < 0)
045b9b5f 605 goto out;
1e73eb62 606 }
f5fc0f86 607
1e73eb62
JO		 608 if (intr & WL1271_ACX_INTR_EVENT_B) {
609 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
045b9b5f 610 ret = wl1271_event_handle(wl, 1);
b5b45b3c 611 if (ret < 0)
045b9b5f 612 goto out;
1e73eb62 613 }
f5fc0f86 614
1e73eb62
JO		 615 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
616 wl1271_debug(DEBUG_IRQ,
617 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 618
1e73eb62
JO		 619 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
620 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 621 }
f5fc0f86 622
f5fc0f86
LC		 623 wl1271_ps_elp_sleep(wl);
624
625out:
b5b45b3c
AN		 626 return ret;
627}
628
629static irqreturn_t wlcore_irq(int irq, void *cookie)
630{
631 int ret;
632 unsigned long flags;
633 struct wl1271 *wl = cookie;
634
635 /* TX might be handled here, avoid redundant work */
636 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
637 cancel_work_sync(&wl->tx_work);
638
639 mutex_lock(&wl->mutex);
640
641 ret = wlcore_irq_locked(wl);
642 if (ret)
643 wl12xx_queue_recovery_work(wl);
644
b07d4037
IY		 645 spin_lock_irqsave(&wl->wl_lock, flags);
646 /* In case TX was not handled here, queue TX work */
647 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
648 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 649 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 650 ieee80211_queue_work(wl->hw, &wl->tx_work);
651 spin_unlock_irqrestore(&wl->wl_lock, flags);
652
f5fc0f86 653 mutex_unlock(&wl->mutex);
a620865e
IY		 654
655 return IRQ_HANDLED;
f5fc0f86
LC		 656}
657
4549d09c
EP		 658struct vif_counter_data {
659 u8 counter;
660
661 struct ieee80211_vif *cur_vif;
662 bool cur_vif_running;
663};
664
665static void wl12xx_vif_count_iter(void *data, u8 *mac,
666 struct ieee80211_vif *vif)
667{
668 struct vif_counter_data *counter = data;
669
670 counter->counter++;
671 if (counter->cur_vif == vif)
672 counter->cur_vif_running = true;
673}
674
675/* caller must not hold wl->mutex, as it might deadlock */
676static void wl12xx_get_vif_count(struct ieee80211_hw *hw,
677 struct ieee80211_vif *cur_vif,
678 struct vif_counter_data *data)
679{
680 memset(data, 0, sizeof(*data));
681 data->cur_vif = cur_vif;
682
683 ieee80211_iterate_active_interfaces(hw,
684 wl12xx_vif_count_iter, data);
685}
686
3fcdab70 687static int wl12xx_fetch_firmware(struct wl1271 *wl, bool plt)
f5fc0f86
LC		 688{
689 const struct firmware *fw;
166d504e 690 const char *fw_name;
3fcdab70 691 enum wl12xx_fw_type fw_type;
f5fc0f86
LC		 692 int ret;
693
3fcdab70
EP		 694 if (plt) {
695 fw_type = WL12XX_FW_TYPE_PLT;
6f7dd16c 696 fw_name = wl->plt_fw_name;
3fcdab70 697 } else {
4549d09c
EP		 698 /*
699 * we can't call wl12xx_get_vif_count() here because
700 * wl->mutex is taken, so use the cached last_vif_count value
701 */
9b1a0a77 702 if (wl->last_vif_count > 1 && wl->mr_fw_name) {
4549d09c 703 fw_type = WL12XX_FW_TYPE_MULTI;
6f7dd16c 704 fw_name = wl->mr_fw_name;
4549d09c
EP		 705 } else {
706 fw_type = WL12XX_FW_TYPE_NORMAL;
6f7dd16c 707 fw_name = wl->sr_fw_name;
4549d09c 708 }
3fcdab70
EP		 709 }
710
711 if (wl->fw_type == fw_type)
712 return 0;
166d504e
AN		 713
714 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
715
a390e85c 716 ret = request_firmware(&fw, fw_name, wl->dev);
f5fc0f86
LC		 717
718 if (ret < 0) {
35898935 719 wl1271_error("could not get firmware %s: %d", fw_name, ret);
f5fc0f86
LC		 720 return ret;
721 }
722
723 if (fw->size % 4) {
724 wl1271_error("firmware size is not multiple of 32 bits: %zu",
725 fw->size);
726 ret = -EILSEQ;
727 goto out;
728 }
729
166d504e 730 vfree(wl->fw);
3fcdab70 731 wl->fw_type = WL12XX_FW_TYPE_NONE;
f5fc0f86 732 wl->fw_len = fw->size;
1fba4974 733 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 734
735 if (!wl->fw) {
736 wl1271_error("could not allocate memory for the firmware");
737 ret = -ENOMEM;
738 goto out;
739 }
740
741 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86 742 ret = 0;
3fcdab70 743 wl->fw_type = fw_type;
f5fc0f86
LC		 744out:
745 release_firmware(fw);
746
747 return ret;
748}
749
baacb9ae
IY		 750void wl12xx_queue_recovery_work(struct wl1271 *wl)
751{
680c6055
ES		 752 WARN_ON(!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
753
b666bb7f 754 /* Avoid a recursive recovery */
792a58a8 755 if (wl->state == WLCORE_STATE_ON) {
4cc53383 756 wl->state = WLCORE_STATE_RESTARTING;
792a58a8 757 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
b666bb7f 758 wlcore_disable_interrupts_nosync(wl);
baacb9ae 759 ieee80211_queue_work(wl->hw, &wl->recovery_work);
b666bb7f 760 }
baacb9ae
IY		 761}
762
95dac04f
IY		 763size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
764{
765 size_t len = 0;
766
767 /* The FW log is a length-value list, find where the log end */
768 while (len < maxlen) {
769 if (memblock[len] == 0)
770 break;
771 if (len + memblock[len] + 1 > maxlen)
772 break;
773 len += memblock[len] + 1;
774 }
775
776 /* Make sure we have enough room */
777 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
778
779 /* Fill the FW log file, consumed by the sysfs fwlog entry */
780 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
781 wl->fwlog_size += len;
782
783 return len;
784}
785
1e41213f
IC		 786#define WLCORE_FW_LOG_END 0x2000000
787
95dac04f
IY		 788static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
789{
790 u32 addr;
1e41213f
IC		 791 u32 offset;
792 u32 end_of_log;
95dac04f 793 u8 *block;
8b7c0fc3 794 int ret;
95dac04f 795
6f7dd16c 796 if ((wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
95dac04f
IY		 797 (wl->conf.fwlog.mem_blocks == 0))
798 return;
799
800 wl1271_info("Reading FW panic log");
801
802 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
803 if (!block)
804 return;
805
806 /*
807 * Make sure the chip is awake and the logger isn't active.
847cbebd
EP		 808 * Do not send a stop fwlog command if the fw is hanged or if
809 * dbgpins are used (due to some fw bug).
95dac04f 810 */
1e41213f 811 if (wl1271_ps_elp_wakeup(wl))
afbe3718 812 goto out;
847cbebd
EP		 813 if (!wl->watchdog_recovery &&
814 wl->conf.fwlog.output != WL12XX_FWLOG_OUTPUT_DBG_PINS)
1e41213f 815 wl12xx_cmd_stop_fwlog(wl);
95dac04f
IY		 816
817 /* Read the first memory block address */
8b7c0fc3
IY		 818 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
819 if (ret < 0)
95dac04f
IY		 820 goto out;
821
1e41213f
IC		 822 addr = le32_to_cpu(wl->fw_status_2->log_start_addr);
823 if (!addr)
95dac04f
IY		 824 goto out;
825
1e41213f
IC		 826 if (wl->conf.fwlog.mode == WL12XX_FWLOG_CONTINUOUS) {
827 offset = sizeof(addr) + sizeof(struct wl1271_rx_descriptor);
828 end_of_log = WLCORE_FW_LOG_END;
829 } else {
830 offset = sizeof(addr);
831 end_of_log = addr;
832 }
833
95dac04f 834 /* Traverse the memory blocks linked list */
95dac04f
IY		 835 do {
836 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
2b800407
IY		 837 ret = wlcore_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
838 false);
839 if (ret < 0)
840 goto out;
95dac04f
IY		 841
842 /*
843 * Memory blocks are linked to one another. The first 4 bytes
844 * of each memory block hold the hardware address of the next
1e41213f
IC		 845 * one. The last memory block points to the first one in
846 * on demand mode and is equal to 0x2000000 in continuous mode.
95dac04f 847 */
4d56ad9c 848 addr = le32_to_cpup((__le32 *)block);
1e41213f
IC		 849 if (!wl12xx_copy_fwlog(wl, block + offset,
850 WL12XX_HW_BLOCK_SIZE - offset))
95dac04f 851 break;
1e41213f 852 } while (addr && (addr != end_of_log));
95dac04f
IY		 853
854 wake_up_interruptible(&wl->fwlog_waitq);
855
856out:
857 kfree(block);
858}
859
6134323f
IY		 860static void wlcore_print_recovery(struct wl1271 *wl)
861{
862 u32 pc = 0;
863 u32 hint_sts = 0;
864 int ret;
865
866 wl1271_info("Hardware recovery in progress. FW ver: %s",
867 wl->chip.fw_ver_str);
868
869 /* change partitions momentarily so we can read the FW pc */
b0f0ad39
IY		 870 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
871 if (ret < 0)
872 return;
6134323f
IY		 873
874 ret = wlcore_read_reg(wl, REG_PC_ON_RECOVERY, &pc);
875 if (ret < 0)
876 return;
877
878 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &hint_sts);
879 if (ret < 0)
880 return;
881
882 wl1271_info("pc: 0x%x, hint_sts: 0x%08x", pc, hint_sts);
883
884 wlcore_set_partition(wl, &wl->ptable[PART_WORK]);
885}
886
887
52b0e7a6
JO		 888static void wl1271_recovery_work(struct work_struct *work)
889{
890 struct wl1271 *wl =
891 container_of(work, struct wl1271, recovery_work);
48e93e40 892 struct wl12xx_vif *wlvif;
6e8cd331 893 struct ieee80211_vif *vif;
52b0e7a6
JO		 894
895 mutex_lock(&wl->mutex);
896
4cc53383 897 if (wl->state == WLCORE_STATE_OFF || wl->plt)
f0277434 898 goto out_unlock;
52b0e7a6 899
aafec111
AN		 900 if (!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags)) {
901 wl12xx_read_fwlog_panic(wl);
902 wlcore_print_recovery(wl);
903 }
52b0e7a6 904
e9ba7152
EP		 905 BUG_ON(bug_on_recovery &&
906 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
2a5bff09 907
34785be5
AN		 908 if (no_recovery) {
909 wl1271_info("No recovery (chosen on module load). Fw will remain stuck.");
34785be5
AN		 910 goto out_unlock;
911 }
912
b992c682
OK		 913 /*
914 * Advance security sequence number to overcome potential progress
915 * in the firmware during recovery. This doens't hurt if the network is
916 * not encrypted.
917 */
48e93e40 918 wl12xx_for_each_wlvif(wl, wlvif) {
ba8447f6 919 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
53d40d0b 920 test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
48e93e40
EP		 921 wlvif->tx_security_seq +=
922 WL1271_TX_SQN_POST_RECOVERY_PADDING;
923 }
b992c682 924
7dece1c8 925 /* Prevent spurious TX during FW restart */
66396114 926 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART);
7dece1c8 927
52b0e7a6 928 /* reboot the chipset */
6e8cd331
EP		 929 while (!list_empty(&wl->wlvif_list)) {
930 wlvif = list_first_entry(&wl->wlvif_list,
931 struct wl12xx_vif, list);
932 vif = wl12xx_wlvif_to_vif(wlvif);
933 __wl1271_op_remove_interface(wl, vif, false);
934 }
c24ec83b
IY		 935
936 wlcore_op_stop_locked(wl);
baacb9ae 937
52b0e7a6
JO		 938 ieee80211_restart_hw(wl->hw);
939
7dece1c8
AN		 940 /*
941 * Its safe to enable TX now - the queues are stopped after a request
942 * to restart the HW.
943 */
66396114 944 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART);
c24ec83b 945
f0277434 946out_unlock:
b034fd6f
AN		 947 wl->watchdog_recovery = false;
948 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
52b0e7a6
JO		 949 mutex_unlock(&wl->mutex);
950}
951
b0f0ad39 952static int wlcore_fw_wakeup(struct wl1271 *wl)
f5fc0f86 953{
b0f0ad39 954 return wlcore_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG, ELPCTRL_WAKE_UP);
f5fc0f86
LC		 955}
956
957static int wl1271_setup(struct wl1271 *wl)
958{
0afd04e5 959 wl->fw_status_1 = kmalloc(WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
4f64a1e9
LC		 960 sizeof(*wl->fw_status_2) +
961 wl->fw_status_priv_len, GFP_KERNEL);
0afd04e5 962 if (!wl->fw_status_1)
f5fc0f86
LC		 963 return -ENOMEM;
964
0afd04e5
AN		 965 wl->fw_status_2 = (struct wl_fw_status_2 *)
966 (((u8 *) wl->fw_status_1) +
967 WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc));
968
f5fc0f86
LC		 969 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
970 if (!wl->tx_res_if) {
0afd04e5 971 kfree(wl->fw_status_1);
f5fc0f86
LC		 972 return -ENOMEM;
973 }
974
f5fc0f86
LC		 975 return 0;
976}
977
30c5dbd1 978static int wl12xx_set_power_on(struct wl1271 *wl)
f5fc0f86 979{
30c5dbd1 980 int ret;
f5fc0f86 981
01ac17ec 982 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 983 ret = wl1271_power_on(wl);
984 if (ret < 0)
985 goto out;
f5fc0f86 986 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 987 wl1271_io_reset(wl);
988 wl1271_io_init(wl);
f5fc0f86 989
b0f0ad39
IY		 990 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
991 if (ret < 0)
992 goto fail;
f5fc0f86
LC		 993
994 /* ELP module wake up */
b0f0ad39
IY		 995 ret = wlcore_fw_wakeup(wl);
996 if (ret < 0)
997 goto fail;
f5fc0f86 998
30c5dbd1
LC		 999out:
1000 return ret;
b0f0ad39
IY		 1001
1002fail:
1003 wl1271_power_off(wl);
1004 return ret;
30c5dbd1 1005}
f5fc0f86 1006
3fcdab70 1007static int wl12xx_chip_wakeup(struct wl1271 *wl, bool plt)
30c5dbd1
LC		 1008{
1009 int ret = 0;
1010
1011 ret = wl12xx_set_power_on(wl);
1012 if (ret < 0)
1013 goto out;
f5fc0f86 1014
e62c9ce4
LC		 1015 /*
1016 * For wl127x based devices we could use the default block
1017 * size (512 bytes), but due to a bug in the sdio driver, we
1018 * need to set it explicitly after the chip is powered on. To
1019 * simplify the code and since the performance impact is
1020 * negligible, we use the same block size for all different
1021 * chip types.
b5d6d9b2
LC		 1022 *
1023 * Check if the bus supports blocksize alignment and, if it
1024 * doesn't, make sure we don't have the quirk.
e62c9ce4 1025 */
b5d6d9b2
LC		 1026 if (!wl1271_set_block_size(wl))
1027 wl->quirks &= ~WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN;
f5fc0f86 1028
6f7dd16c 1029 /* TODO: make sure the lower driver has set things up correctly */
0830ceed 1030
6f7dd16c
LC		 1031 ret = wl1271_setup(wl);
1032 if (ret < 0)
9ccd9217 1033 goto out;
f5fc0f86 1034
3fcdab70
EP		 1035 ret = wl12xx_fetch_firmware(wl, plt);
1036 if (ret < 0)
1037 goto out;
f5fc0f86 1038
f5fc0f86
LC		 1039out:
1040 return ret;
1041}
1042
7019c80e 1043int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
f5fc0f86 1044{
9ccd9217 1045 int retries = WL1271_BOOT_RETRIES;
6f07b72a 1046 struct wiphy *wiphy = wl->hw->wiphy;
7019c80e
YS		 1047
1048 static const char* const PLT_MODE[] = {
1049 "PLT_OFF",
1050 "PLT_ON",
1051 "PLT_FEM_DETECT"
1052 };
1053
f5fc0f86
LC		 1054 int ret;
1055
1056 mutex_lock(&wl->mutex);
1057
1058 wl1271_notice("power up");
1059
4cc53383 1060 if (wl->state != WLCORE_STATE_OFF) {
f5fc0f86
LC		 1061 wl1271_error("cannot go into PLT state because not "
1062 "in off state: %d", wl->state);
1063 ret = -EBUSY;
1064 goto out;
1065 }
1066
7019c80e
YS		 1067 /* Indicate to lower levels that we are now in PLT mode */
1068 wl->plt = true;
1069 wl->plt_mode = plt_mode;
1070
9ccd9217
JO		 1071 while (retries) {
1072 retries--;
3fcdab70 1073 ret = wl12xx_chip_wakeup(wl, true);
9ccd9217
JO		 1074 if (ret < 0)
1075 goto power_off;
f5fc0f86 1076
c331b344 1077 ret = wl->ops->plt_init(wl);
9ccd9217
JO		 1078 if (ret < 0)
1079 goto power_off;
eb5b28d0 1080
4cc53383 1081 wl->state = WLCORE_STATE_ON;
7019c80e
YS		 1082 wl1271_notice("firmware booted in PLT mode %s (%s)",
1083 PLT_MODE[plt_mode],
4b7fac77 1084 wl->chip.fw_ver_str);
e7ddf549 1085
6f07b72a
GK		 1086 /* update hw/fw version info in wiphy struct */
1087 wiphy->hw_version = wl->chip.id;
1088 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1089 sizeof(wiphy->fw_version));
1090
9ccd9217 1091 goto out;
eb5b28d0 1092
9ccd9217
JO		 1093power_off:
1094 wl1271_power_off(wl);
1095 }
f5fc0f86 1096
7019c80e
YS		 1097 wl->plt = false;
1098 wl->plt_mode = PLT_OFF;
1099
9ccd9217
JO		 1100 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1101 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1102out:
1103 mutex_unlock(&wl->mutex);
1104
1105 return ret;
1106}
1107
f3df1331 1108int wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1109{
1110 int ret = 0;
1111
f5fc0f86
LC		 1112 wl1271_notice("power down");
1113
46b0cc9f
IY		 1114 /*
1115 * Interrupts must be disabled before setting the state to OFF.
1116 * Otherwise, the interrupt handler might be called and exit without
1117 * reading the interrupt status.
1118 */
dd5512eb 1119 wlcore_disable_interrupts(wl);
f3df1331 1120 mutex_lock(&wl->mutex);
3fcdab70 1121 if (!wl->plt) {
f3df1331 1122 mutex_unlock(&wl->mutex);
46b0cc9f
IY		 1123
1124 /*
1125 * This will not necessarily enable interrupts as interrupts
1126 * may have been disabled when op_stop was called. It will,
1127 * however, balance the above call to disable_interrupts().
1128 */
dd5512eb 1129 wlcore_enable_interrupts(wl);
46b0cc9f 1130
f5fc0f86
LC		 1131 wl1271_error("cannot power down because not in PLT "
1132 "state: %d", wl->state);
1133 ret = -EBUSY;
1134 goto out;
1135 }
1136
f5fc0f86 1137 mutex_unlock(&wl->mutex);
f3df1331 1138
a620865e
IY		 1139 wl1271_flush_deferred_work(wl);
1140 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1141 cancel_work_sync(&wl->recovery_work);
f6fbeccd 1142 cancel_delayed_work_sync(&wl->elp_work);
55df5afb 1143 cancel_delayed_work_sync(&wl->tx_watchdog_work);
a454969e
IY		 1144
1145 mutex_lock(&wl->mutex);
1146 wl1271_power_off(wl);
f6fbeccd 1147 wl->flags = 0;
2f18cf7c 1148 wl->sleep_auth = WL1271_PSM_ILLEGAL;
4cc53383 1149 wl->state = WLCORE_STATE_OFF;
3fcdab70 1150 wl->plt = false;
7019c80e 1151 wl->plt_mode = PLT_OFF;
f6fbeccd 1152 wl->rx_counter = 0;
a454969e
IY		 1153 mutex_unlock(&wl->mutex);
1154
4ae3fa87
JO		 1155out:
1156 return ret;
1157}
1158
36323f81
TH		 1159static void wl1271_op_tx(struct ieee80211_hw *hw,
1160 struct ieee80211_tx_control *control,
1161 struct sk_buff *skb)
f5fc0f86
LC		 1162{
1163 struct wl1271 *wl = hw->priv;
a8ab39a4
EP		 1164 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1165 struct ieee80211_vif *vif = info->control.vif;
0f168014 1166 struct wl12xx_vif *wlvif = NULL;
830fb67b 1167 unsigned long flags;
708bb3cf 1168 int q, mapping;
d6a3cc2e 1169 u8 hlid;
f5fc0f86 1170
0f168014
EP		 1171 if (vif)
1172 wlvif = wl12xx_vif_to_data(vif);
1173
708bb3cf
AN		 1174 mapping = skb_get_queue_mapping(skb);
1175 q = wl1271_tx_get_queue(mapping);
b07d4037 1176
36323f81 1177 hlid = wl12xx_tx_get_hlid(wl, wlvif, skb, control->sta);
b07d4037 1178
830fb67b 1179 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1180
66396114
AN		 1181 /*
1182 * drop the packet if the link is invalid or the queue is stopped
1183 * for any reason but watermark. Watermark is a "soft"-stop so we
1184 * allow these packets through.
1185 */
d6a3cc2e 1186 if (hlid == WL12XX_INVALID_LINK_ID ||
66396114
AN		 1187 (wlvif && !test_bit(hlid, wlvif->links_map)) ||
1188 (wlcore_is_queue_stopped(wl, q) &&
1189 !wlcore_is_queue_stopped_by_reason(wl, q,
1190 WLCORE_QUEUE_STOP_REASON_WATERMARK))) {
d6a3cc2e 1191 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d", hlid, q);
5de8eef4 1192 ieee80211_free_txskb(hw, skb);
d6a3cc2e 1193 goto out;
a8c0ddb5 1194 }
f5fc0f86 1195
8ccd16e6
EP		 1196 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d len %d",
1197 hlid, q, skb->len);
d6a3cc2e
EP		 1198 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1199
04b4d69c
AN		 1200 wl->tx_queue_count[q]++;
1201
1202 /*
1203 * The workqueue is slow to process the tx_queue and we need stop
1204 * the queue here, otherwise the queue will get too long.
1205 */
8cdc44aa
AN		 1206 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK &&
1207 !wlcore_is_queue_stopped_by_reason(wl, q,
1208 WLCORE_QUEUE_STOP_REASON_WATERMARK)) {
04b4d69c 1209 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
66396114
AN		 1210 wlcore_stop_queue_locked(wl, q,
1211 WLCORE_QUEUE_STOP_REASON_WATERMARK);
04b4d69c
AN		 1212 }
1213
f5fc0f86
LC		 1214 /*
1215 * The chip specific setup must run before the first TX packet -
1216 * before that, the tx_work will not be initialized!
1217 */
1218
b07d4037
IY		 1219 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1220 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1221 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1222
04216da3 1223out:
b07d4037 1224 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1225}
1226
ae47c45f
SL		 1227int wl1271_tx_dummy_packet(struct wl1271 *wl)
1228{
990f5de7 1229 unsigned long flags;
14623787
AN		 1230 int q;
1231
1232 /* no need to queue a new dummy packet if one is already pending */
1233 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1234 return 0;
1235
1236 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1237
1238 spin_lock_irqsave(&wl->wl_lock, flags);
1239 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1240 wl->tx_queue_count[q]++;
990f5de7
IY		 1241 spin_unlock_irqrestore(&wl->wl_lock, flags);
1242
1243 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1244 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
eb96f841 1245 return wlcore_tx_work_locked(wl);
990f5de7
IY		 1246
1247 /*
1248 * If the FW TX is busy, TX work will be scheduled by the threaded
1249 * interrupt handler function
1250 */
1251 return 0;
1252}
1253
1254/*
1255 * The size of the dummy packet should be at least 1400 bytes. However, in
1256 * order to minimize the number of bus transactions, aligning it to 512 bytes
1257 * boundaries could be beneficial, performance wise
1258 */
1259#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1260
cf27d867 1261static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1262{
1263 struct sk_buff *skb;
ae47c45f 1264 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1265 unsigned int dummy_packet_size;
1266
1267 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1268 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1269
990f5de7 1270 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1271 if (!skb) {
990f5de7
IY		 1272 wl1271_warning("Failed to allocate a dummy packet skb");
1273 return NULL;
ae47c45f
SL		 1274 }
1275
1276 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1277
1278 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1279 memset(hdr, 0, sizeof(*hdr));
1280 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1281 IEEE80211_STYPE_NULLFUNC |
1282 IEEE80211_FCTL_TODS);
ae47c45f 1283
990f5de7 1284 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1285
18b92ffa
LC		 1286 /* Dummy packets require the TID to be management */
1287 skb->priority = WL1271_TID_MGMT;
ae47c45f 1288
990f5de7 1289 /* Initialize all fields that might be used */
86c438f4 1290 skb_set_queue_mapping(skb, 0);
990f5de7 1291 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1292
990f5de7 1293 return skb;
ae47c45f
SL		 1294}
1295
990f5de7 1296
f634a4e7 1297#ifdef CONFIG_PM
22479972
LC		 1298static int
1299wl1271_validate_wowlan_pattern(struct cfg80211_wowlan_trig_pkt_pattern *p)
b95d7cef
ES		 1300{
1301 int num_fields = 0, in_field = 0, fields_size = 0;
1302 int i, pattern_len = 0;
1303
1304 if (!p->mask) {
1305 wl1271_warning("No mask in WoWLAN pattern");
1306 return -EINVAL;
1307 }
1308
1309 /*
1310 * The pattern is broken up into segments of bytes at different offsets
1311 * that need to be checked by the FW filter. Each segment is called
1312 * a field in the FW API. We verify that the total number of fields
1313 * required for this pattern won't exceed FW limits (8)
1314 * as well as the total fields buffer won't exceed the FW limit.
1315 * Note that if there's a pattern which crosses Ethernet/IP header
1316 * boundary a new field is required.
1317 */
1318 for (i = 0; i < p->pattern_len; i++) {
1319 if (test_bit(i, (unsigned long *)p->mask)) {
1320 if (!in_field) {
1321 in_field = 1;
1322 pattern_len = 1;
1323 } else {
1324 if (i == WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1325 num_fields++;
1326 fields_size += pattern_len +
1327 RX_FILTER_FIELD_OVERHEAD;
1328 pattern_len = 1;
1329 } else
1330 pattern_len++;
1331 }
1332 } else {
1333 if (in_field) {
1334 in_field = 0;
1335 fields_size += pattern_len +
1336 RX_FILTER_FIELD_OVERHEAD;
1337 num_fields++;
1338 }
1339 }
1340 }
1341
1342 if (in_field) {
1343 fields_size += pattern_len + RX_FILTER_FIELD_OVERHEAD;
1344 num_fields++;
1345 }
1346
1347 if (num_fields > WL1271_RX_FILTER_MAX_FIELDS) {
1348 wl1271_warning("RX Filter too complex. Too many segments");
1349 return -EINVAL;
1350 }
1351
1352 if (fields_size > WL1271_RX_FILTER_MAX_FIELDS_SIZE) {
1353 wl1271_warning("RX filter pattern is too big");
1354 return -E2BIG;
1355 }
1356
1357 return 0;
1358}
1359
a6eab0c8
ES		 1360struct wl12xx_rx_filter *wl1271_rx_filter_alloc(void)
1361{
1362 return kzalloc(sizeof(struct wl12xx_rx_filter), GFP_KERNEL);
1363}
1364
1365void wl1271_rx_filter_free(struct wl12xx_rx_filter *filter)
1366{
1367 int i;
1368
1369 if (filter == NULL)
1370 return;
1371
1372 for (i = 0; i < filter->num_fields; i++)
1373 kfree(filter->fields[i].pattern);
1374
1375 kfree(filter);
1376}
1377
1378int wl1271_rx_filter_alloc_field(struct wl12xx_rx_filter *filter,
1379 u16 offset, u8 flags,
1380 u8 *pattern, u8 len)
1381{
1382 struct wl12xx_rx_filter_field *field;
1383
1384 if (filter->num_fields == WL1271_RX_FILTER_MAX_FIELDS) {
1385 wl1271_warning("Max fields per RX filter. can't alloc another");
1386 return -EINVAL;
1387 }
1388
1389 field = &filter->fields[filter->num_fields];
1390
1391 field->pattern = kzalloc(len, GFP_KERNEL);
1392 if (!field->pattern) {
1393 wl1271_warning("Failed to allocate RX filter pattern");
1394 return -ENOMEM;
1395 }
1396
1397 filter->num_fields++;
1398
1399 field->offset = cpu_to_le16(offset);
1400 field->flags = flags;
1401 field->len = len;
1402 memcpy(field->pattern, pattern, len);
1403
1404 return 0;
1405}
1406
1407int wl1271_rx_filter_get_fields_size(struct wl12xx_rx_filter *filter)
1408{
1409 int i, fields_size = 0;
1410
1411 for (i = 0; i < filter->num_fields; i++)
1412 fields_size += filter->fields[i].len +
1413 sizeof(struct wl12xx_rx_filter_field) -
1414 sizeof(u8 *);
1415
1416 return fields_size;
1417}
1418
1419void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter,
1420 u8 *buf)
1421{
1422 int i;
1423 struct wl12xx_rx_filter_field *field;
1424
1425 for (i = 0; i < filter->num_fields; i++) {
1426 field = (struct wl12xx_rx_filter_field *)buf;
1427
1428 field->offset = filter->fields[i].offset;
1429 field->flags = filter->fields[i].flags;
1430 field->len = filter->fields[i].len;
1431
1432 memcpy(&field->pattern, filter->fields[i].pattern, field->len);
1433 buf += sizeof(struct wl12xx_rx_filter_field) -
1434 sizeof(u8 *) + field->len;
1435 }
1436}
1437
b95d7cef
ES		 1438/*
1439 * Allocates an RX filter returned through f
1440 * which needs to be freed using rx_filter_free()
1441 */
22479972 1442static int wl1271_convert_wowlan_pattern_to_rx_filter(
b95d7cef
ES		 1443 struct cfg80211_wowlan_trig_pkt_pattern *p,
1444 struct wl12xx_rx_filter **f)
1445{
1446 int i, j, ret = 0;
1447 struct wl12xx_rx_filter *filter;
1448 u16 offset;
1449 u8 flags, len;
1450
1451 filter = wl1271_rx_filter_alloc();
1452 if (!filter) {
1453 wl1271_warning("Failed to alloc rx filter");
1454 ret = -ENOMEM;
1455 goto err;
1456 }
1457
1458 i = 0;
1459 while (i < p->pattern_len) {
1460 if (!test_bit(i, (unsigned long *)p->mask)) {
1461 i++;
1462 continue;
1463 }
1464
1465 for (j = i; j < p->pattern_len; j++) {
1466 if (!test_bit(j, (unsigned long *)p->mask))
1467 break;
1468
1469 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE &&
1470 j >= WL1271_RX_FILTER_ETH_HEADER_SIZE)
1471 break;
1472 }
1473
1474 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1475 offset = i;
1476 flags = WL1271_RX_FILTER_FLAG_ETHERNET_HEADER;
1477 } else {
1478 offset = i - WL1271_RX_FILTER_ETH_HEADER_SIZE;
1479 flags = WL1271_RX_FILTER_FLAG_IP_HEADER;
1480 }
1481
1482 len = j - i;
1483
1484 ret = wl1271_rx_filter_alloc_field(filter,
1485 offset,
1486 flags,
1487 &p->pattern[i], len);
1488 if (ret)
1489 goto err;
1490
1491 i = j;
1492 }
1493
1494 filter->action = FILTER_SIGNAL;
1495
1496 *f = filter;
1497 return 0;
1498
1499err:
1500 wl1271_rx_filter_free(filter);
1501 *f = NULL;
1502
1503 return ret;
1504}
1505
1506static int wl1271_configure_wowlan(struct wl1271 *wl,
1507 struct cfg80211_wowlan *wow)
1508{
1509 int i, ret;
1510
1511 if (!wow || wow->any || !wow->n_patterns) {
c439a1ca
AN		 1512 ret = wl1271_acx_default_rx_filter_enable(wl, 0,
1513 FILTER_SIGNAL);
1514 if (ret)
1515 goto out;
1516
1517 ret = wl1271_rx_filter_clear_all(wl);
1518 if (ret)
1519 goto out;
1520
b95d7cef
ES		 1521 return 0;
1522 }
1523
1524 if (WARN_ON(wow->n_patterns > WL1271_MAX_RX_FILTERS))
1525 return -EINVAL;
1526
1527 /* Validate all incoming patterns before clearing current FW state */
1528 for (i = 0; i < wow->n_patterns; i++) {
1529 ret = wl1271_validate_wowlan_pattern(&wow->patterns[i]);
1530 if (ret) {
1531 wl1271_warning("Bad wowlan pattern %d", i);
1532 return ret;
1533 }
1534 }
1535
c439a1ca
AN		 1536 ret = wl1271_acx_default_rx_filter_enable(wl, 0, FILTER_SIGNAL);
1537 if (ret)
1538 goto out;
1539
1540 ret = wl1271_rx_filter_clear_all(wl);
1541 if (ret)
1542 goto out;
b95d7cef
ES		 1543
1544 /* Translate WoWLAN patterns into filters */
1545 for (i = 0; i < wow->n_patterns; i++) {
1546 struct cfg80211_wowlan_trig_pkt_pattern *p;
1547 struct wl12xx_rx_filter *filter = NULL;
1548
1549 p = &wow->patterns[i];
1550
1551 ret = wl1271_convert_wowlan_pattern_to_rx_filter(p, &filter);
1552 if (ret) {
1553 wl1271_warning("Failed to create an RX filter from "
1554 "wowlan pattern %d", i);
1555 goto out;
1556 }
1557
1558 ret = wl1271_rx_filter_enable(wl, i, 1, filter);
1559
1560 wl1271_rx_filter_free(filter);
1561 if (ret)
1562 goto out;
1563 }
1564
1565 ret = wl1271_acx_default_rx_filter_enable(wl, 1, FILTER_DROP);
1566
1567out:
1568 return ret;
1569}
1570
dae728fe 1571static int wl1271_configure_suspend_sta(struct wl1271 *wl,
b95d7cef
ES		 1572 struct wl12xx_vif *wlvif,
1573 struct cfg80211_wowlan *wow)
dae728fe
ES		 1574{
1575 int ret = 0;
1576
dae728fe 1577 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
c56dbd57 1578 goto out;
dae728fe
ES		 1579
1580 ret = wl1271_ps_elp_wakeup(wl);
1581 if (ret < 0)
c56dbd57 1582 goto out;
dae728fe 1583
c439a1ca
AN		 1584 ret = wl1271_configure_wowlan(wl, wow);
1585 if (ret < 0)
1586 goto out_sleep;
1587
11bc97eb
ES		 1588 if ((wl->conf.conn.suspend_wake_up_event ==
1589 wl->conf.conn.wake_up_event) &&
1590 (wl->conf.conn.suspend_listen_interval ==
1591 wl->conf.conn.listen_interval))
1592 goto out_sleep;
1593
dae728fe
ES		 1594 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1595 wl->conf.conn.suspend_wake_up_event,
1596 wl->conf.conn.suspend_listen_interval);
1597
1598 if (ret < 0)
1599 wl1271_error("suspend: set wake up conditions failed: %d", ret);
1600
c439a1ca 1601out_sleep:
dae728fe 1602 wl1271_ps_elp_sleep(wl);
c56dbd57 1603out:
dae728fe
ES		 1604 return ret;
1605
1606}
9439064c 1607
0603d891
EP		 1608static int wl1271_configure_suspend_ap(struct wl1271 *wl,
1609 struct wl12xx_vif *wlvif)
8a7cf3fe 1610{
e85d1629 1611 int ret = 0;
8a7cf3fe 1612
53d40d0b 1613 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
c56dbd57 1614 goto out;
e85d1629 1615
8a7cf3fe
EP		 1616 ret = wl1271_ps_elp_wakeup(wl);
1617 if (ret < 0)
c56dbd57 1618 goto out;
8a7cf3fe 1619
0603d891 1620 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true);
8a7cf3fe
EP		 1621
1622 wl1271_ps_elp_sleep(wl);
c56dbd57 1623out:
8a7cf3fe
EP		 1624 return ret;
1625
1626}
1627
d2d66c56 1628static int wl1271_configure_suspend(struct wl1271 *wl,
b95d7cef
ES		 1629 struct wl12xx_vif *wlvif,
1630 struct cfg80211_wowlan *wow)
8a7cf3fe 1631{
dae728fe 1632 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
b95d7cef 1633 return wl1271_configure_suspend_sta(wl, wlvif, wow);
536129c8 1634 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
0603d891 1635 return wl1271_configure_suspend_ap(wl, wlvif);
8a7cf3fe
EP		 1636 return 0;
1637}
1638
d2d66c56
EP		 1639static void wl1271_configure_resume(struct wl1271 *wl,
1640 struct wl12xx_vif *wlvif)
9439064c 1641{
dae728fe 1642 int ret = 0;
536129c8 1643 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
dae728fe 1644 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
9439064c 1645
dae728fe 1646 if ((!is_ap) && (!is_sta))
9439064c
EP		 1647 return;
1648
d49524d3
EP		 1649 if (is_sta && !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
1650 return;
1651
9439064c
EP		 1652 ret = wl1271_ps_elp_wakeup(wl);
1653 if (ret < 0)
c56dbd57 1654 return;
9439064c 1655
dae728fe 1656 if (is_sta) {
b95d7cef
ES		 1657 wl1271_configure_wowlan(wl, NULL);
1658
11bc97eb
ES		 1659 if ((wl->conf.conn.suspend_wake_up_event ==
1660 wl->conf.conn.wake_up_event) &&
1661 (wl->conf.conn.suspend_listen_interval ==
1662 wl->conf.conn.listen_interval))
1663 goto out_sleep;
1664
dae728fe
ES		 1665 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1666 wl->conf.conn.wake_up_event,
1667 wl->conf.conn.listen_interval);
1668
1669 if (ret < 0)
1670 wl1271_error("resume: wake up conditions failed: %d",
1671 ret);
1672
1673 } else if (is_ap) {
1674 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false);
1675 }
9439064c 1676
11bc97eb 1677out_sleep:
9439064c 1678 wl1271_ps_elp_sleep(wl);
9439064c
EP		 1679}
1680
402e4861
EP		 1681static int wl1271_op_suspend(struct ieee80211_hw *hw,
1682 struct cfg80211_wowlan *wow)
1683{
1684 struct wl1271 *wl = hw->priv;
6e8cd331 1685 struct wl12xx_vif *wlvif;
4a859df8
EP		 1686 int ret;
1687
402e4861 1688 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
b95d7cef 1689 WARN_ON(!wow);
f44e5868 1690
96caded8
AN		 1691 /* we want to perform the recovery before suspending */
1692 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
1693 wl1271_warning("postponing suspend to perform recovery");
1694 return -EBUSY;
1695 }
1696
b9239b66
AN		 1697 wl1271_tx_flush(wl);
1698
c56dbd57 1699 mutex_lock(&wl->mutex);
4a859df8 1700 wl->wow_enabled = true;
6e8cd331 1701 wl12xx_for_each_wlvif(wl, wlvif) {
b95d7cef 1702 ret = wl1271_configure_suspend(wl, wlvif, wow);
6e8cd331 1703 if (ret < 0) {
cd840f6a 1704 mutex_unlock(&wl->mutex);
6e8cd331
EP		 1705 wl1271_warning("couldn't prepare device to suspend");
1706 return ret;
1707 }
4a859df8 1708 }
c56dbd57 1709 mutex_unlock(&wl->mutex);
4a859df8
EP		 1710 /* flush any remaining work */
1711 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1712
4a859df8
EP		 1713 /*
1714 * disable and re-enable interrupts in order to flush
1715 * the threaded_irq
1716 */
dd5512eb 1717 wlcore_disable_interrupts(wl);
4a859df8
EP		 1718
1719 /*
1720 * set suspended flag to avoid triggering a new threaded_irq
1721 * work. no need for spinlock as interrupts are disabled.
1722 */
1723 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1724
dd5512eb 1725 wlcore_enable_interrupts(wl);
4a859df8 1726 flush_work(&wl->tx_work);
4a859df8 1727 flush_delayed_work(&wl->elp_work);
f44e5868 1728
402e4861
EP		 1729 return 0;
1730}
1731
1732static int wl1271_op_resume(struct ieee80211_hw *hw)
1733{
1734 struct wl1271 *wl = hw->priv;
6e8cd331 1735 struct wl12xx_vif *wlvif;
4a859df8 1736 unsigned long flags;
ea0a3cf9 1737 bool run_irq_work = false, pending_recovery;
725b8277 1738 int ret;
4a859df8 1739
402e4861
EP		 1740 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1741 wl->wow_enabled);
4a859df8 1742 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1743
1744 /*
1745 * re-enable irq_work enqueuing, and call irq_work directly if
1746 * there is a pending work.
1747 */
4a859df8
EP		 1748 spin_lock_irqsave(&wl->wl_lock, flags);
1749 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1750 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1751 run_irq_work = true;
1752 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1753
725b8277
AN		 1754 mutex_lock(&wl->mutex);
1755
ea0a3cf9
AN		 1756 /* test the recovery flag before calling any SDIO functions */
1757 pending_recovery = test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1758 &wl->flags);
1759
4a859df8
EP		 1760 if (run_irq_work) {
1761 wl1271_debug(DEBUG_MAC80211,
1762 "run postponed irq_work directly");
ea0a3cf9
AN		 1763
1764 /* don't talk to the HW if recovery is pending */
725b8277
AN		 1765 if (!pending_recovery) {
1766 ret = wlcore_irq_locked(wl);
1767 if (ret)
1768 wl12xx_queue_recovery_work(wl);
1769 }
ea0a3cf9 1770
dd5512eb 1771 wlcore_enable_interrupts(wl);
f44e5868 1772 }
c56dbd57 1773
ea0a3cf9
AN		 1774 if (pending_recovery) {
1775 wl1271_warning("queuing forgotten recovery on resume");
1776 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1777 goto out;
1778 }
1779
6e8cd331
EP		 1780 wl12xx_for_each_wlvif(wl, wlvif) {
1781 wl1271_configure_resume(wl, wlvif);
1782 }
ea0a3cf9
AN		 1783
1784out:
ff91afc9 1785 wl->wow_enabled = false;
c56dbd57 1786 mutex_unlock(&wl->mutex);
f44e5868 1787
402e4861
EP		 1788 return 0;
1789}
f634a4e7 1790#endif
402e4861 1791
f5fc0f86 1792static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1793{
1794 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1795
1796 /*
1797 * We have to delay the booting of the hardware because
1798 * we need to know the local MAC address before downloading and
1799 * initializing the firmware. The MAC address cannot be changed
1800 * after boot, and without the proper MAC address, the firmware
1801 * will not function properly.
1802 *
1803 * The MAC address is first known when the corresponding interface
1804 * is added. That is where we will initialize the hardware.
1805 */
1806
d18da7fc 1807 return 0;
1b72aecd
JO		 1808}
1809
c24ec83b 1810static void wlcore_op_stop_locked(struct wl1271 *wl)
1b72aecd 1811{
baf6277a
EP		 1812 int i;
1813
4cc53383 1814 if (wl->state == WLCORE_STATE_OFF) {
b666bb7f
IY		 1815 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1816 &wl->flags))
1817 wlcore_enable_interrupts(wl);
1818
10c8cd01
EP		 1819 return;
1820 }
46b0cc9f 1821
baf6277a
EP		 1822 /*
1823 * this must be before the cancel_work calls below, so that the work
1824 * functions don't perform further work.
1825 */
4cc53383 1826 wl->state = WLCORE_STATE_OFF;
c24ec83b
IY		 1827
1828 /*
1829 * Use the nosync variant to disable interrupts, so the mutex could be
1830 * held while doing so without deadlocking.
1831 */
1832 wlcore_disable_interrupts_nosync(wl);
1833
10c8cd01
EP		 1834 mutex_unlock(&wl->mutex);
1835
c24ec83b 1836 wlcore_synchronize_interrupts(wl);
6dbc5fc2
EP		 1837 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1838 cancel_work_sync(&wl->recovery_work);
baf6277a
EP		 1839 wl1271_flush_deferred_work(wl);
1840 cancel_delayed_work_sync(&wl->scan_complete_work);
1841 cancel_work_sync(&wl->netstack_work);
1842 cancel_work_sync(&wl->tx_work);
baf6277a 1843 cancel_delayed_work_sync(&wl->elp_work);
55df5afb 1844 cancel_delayed_work_sync(&wl->tx_watchdog_work);
baf6277a
EP		 1845
1846 /* let's notify MAC80211 about the remaining pending TX frames */
66396114 1847 wl12xx_tx_reset(wl);
baf6277a
EP		 1848 mutex_lock(&wl->mutex);
1849
1850 wl1271_power_off(wl);
b666bb7f
IY		 1851 /*
1852 * In case a recovery was scheduled, interrupts were disabled to avoid
1853 * an interrupt storm. Now that the power is down, it is safe to
1854 * re-enable interrupts to balance the disable depth
1855 */
1856 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1857 wlcore_enable_interrupts(wl);
baf6277a
EP		 1858
1859 wl->band = IEEE80211_BAND_2GHZ;
1860
1861 wl->rx_counter = 0;
1862 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
83d08d3f 1863 wl->channel_type = NL80211_CHAN_NO_HT;
baf6277a
EP		 1864 wl->tx_blocks_available = 0;
1865 wl->tx_allocated_blocks = 0;
1866 wl->tx_results_count = 0;
1867 wl->tx_packets_count = 0;
1868 wl->time_offset = 0;
baf6277a
EP		 1869 wl->ap_fw_ps_map = 0;
1870 wl->ap_ps_map = 0;
2f18cf7c 1871 wl->sleep_auth = WL1271_PSM_ILLEGAL;
baf6277a
EP		 1872 memset(wl->roles_map, 0, sizeof(wl->roles_map));
1873 memset(wl->links_map, 0, sizeof(wl->links_map));
1874 memset(wl->roc_map, 0, sizeof(wl->roc_map));
978cd3a0 1875 memset(wl->session_ids, 0, sizeof(wl->session_ids));
baf6277a
EP		 1876 wl->active_sta_count = 0;
1877
1878 /* The system link is always allocated */
1879 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
1880
1881 /*
1882 * this is performed after the cancel_work calls and the associated
1883 * mutex_lock, so that wl1271_op_add_interface does not accidentally
1884 * get executed before all these vars have been reset.
1885 */
1886 wl->flags = 0;
1887
1888 wl->tx_blocks_freed = 0;
1889
1890 for (i = 0; i < NUM_TX_QUEUES; i++) {
1891 wl->tx_pkts_freed[i] = 0;
1892 wl->tx_allocated_pkts[i] = 0;
1893 }
1894
1895 wl1271_debugfs_reset(wl);
1896
0afd04e5
AN		 1897 kfree(wl->fw_status_1);
1898 wl->fw_status_1 = NULL;
1899 wl->fw_status_2 = NULL;
baf6277a
EP		 1900 kfree(wl->tx_res_if);
1901 wl->tx_res_if = NULL;
1902 kfree(wl->target_mem_map);
1903 wl->target_mem_map = NULL;
6b70e7eb
VG		 1904
1905 /*
1906 * FW channels must be re-calibrated after recovery,
1907 * clear the last Reg-Domain channel configuration.
1908 */
1909 memset(wl->reg_ch_conf_last, 0, sizeof(wl->reg_ch_conf_last));
c24ec83b
IY		 1910}
1911
1912static void wlcore_op_stop(struct ieee80211_hw *hw)
1913{
1914 struct wl1271 *wl = hw->priv;
1915
1916 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1917
1918 mutex_lock(&wl->mutex);
1919
1920 wlcore_op_stop_locked(wl);
baf6277a
EP		 1921
1922 mutex_unlock(&wl->mutex);
1b72aecd
JO		 1923}
1924
c50a2825
EP		 1925static void wlcore_channel_switch_work(struct work_struct *work)
1926{
1927 struct delayed_work *dwork;
1928 struct wl1271 *wl;
1929 struct ieee80211_vif *vif;
1930 struct wl12xx_vif *wlvif;
1931 int ret;
1932
1933 dwork = container_of(work, struct delayed_work, work);
1934 wlvif = container_of(dwork, struct wl12xx_vif, channel_switch_work);
1935 wl = wlvif->wl;
1936
1937 wl1271_info("channel switch failed (role_id: %d).", wlvif->role_id);
1938
1939 mutex_lock(&wl->mutex);
1940
1941 if (unlikely(wl->state != WLCORE_STATE_ON))
1942 goto out;
1943
1944 /* check the channel switch is still ongoing */
1945 if (!test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags))
1946 goto out;
1947
1948 vif = wl12xx_wlvif_to_vif(wlvif);
1949 ieee80211_chswitch_done(vif, false);
1950
1951 ret = wl1271_ps_elp_wakeup(wl);
1952 if (ret < 0)
1953 goto out;
1954
1955 wl12xx_cmd_stop_channel_switch(wl, wlvif);
1956
1957 wl1271_ps_elp_sleep(wl);
1958out:
1959 mutex_unlock(&wl->mutex);
1960}
1961
1962static void wlcore_connection_loss_work(struct work_struct *work)
1963{
1964 struct delayed_work *dwork;
1965 struct wl1271 *wl;
1966 struct ieee80211_vif *vif;
1967 struct wl12xx_vif *wlvif;
1968
1969 dwork = container_of(work, struct delayed_work, work);
1970 wlvif = container_of(dwork, struct wl12xx_vif, connection_loss_work);
1971 wl = wlvif->wl;
1972
1973 wl1271_info("Connection loss work (role_id: %d).", wlvif->role_id);
1974
1975 mutex_lock(&wl->mutex);
1976
1977 if (unlikely(wl->state != WLCORE_STATE_ON))
1978 goto out;
1979
1980 /* Call mac80211 connection loss */
1981 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
1982 goto out;
1983
1984 vif = wl12xx_wlvif_to_vif(wlvif);
1985 ieee80211_connection_loss(vif);
1986out:
1987 mutex_unlock(&wl->mutex);
1988}
1989
e5a359f8
EP		 1990static int wl12xx_allocate_rate_policy(struct wl1271 *wl, u8 *idx)
1991{
1992 u8 policy = find_first_zero_bit(wl->rate_policies_map,
1993 WL12XX_MAX_RATE_POLICIES);
1994 if (policy >= WL12XX_MAX_RATE_POLICIES)
1995 return -EBUSY;
1996
1997 __set_bit(policy, wl->rate_policies_map);
1998 *idx = policy;
1999 return 0;
2000}
2001
2002static void wl12xx_free_rate_policy(struct wl1271 *wl, u8 *idx)
2003{
2004 if (WARN_ON(*idx >= WL12XX_MAX_RATE_POLICIES))
2005 return;
2006
2007 __clear_bit(*idx, wl->rate_policies_map);
2008 *idx = WL12XX_MAX_RATE_POLICIES;
2009}
2010
001e39a8
EP		 2011static int wlcore_allocate_klv_template(struct wl1271 *wl, u8 *idx)
2012{
2013 u8 policy = find_first_zero_bit(wl->klv_templates_map,
2014 WLCORE_MAX_KLV_TEMPLATES);
2015 if (policy >= WLCORE_MAX_KLV_TEMPLATES)
2016 return -EBUSY;
2017
2018 __set_bit(policy, wl->klv_templates_map);
2019 *idx = policy;
2020 return 0;
2021}
2022
2023static void wlcore_free_klv_template(struct wl1271 *wl, u8 *idx)
2024{
2025 if (WARN_ON(*idx >= WLCORE_MAX_KLV_TEMPLATES))
2026 return;
2027
2028 __clear_bit(*idx, wl->klv_templates_map);
2029 *idx = WLCORE_MAX_KLV_TEMPLATES;
2030}
2031
536129c8 2032static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
b78b47eb 2033{
536129c8 2034 switch (wlvif->bss_type) {
b78b47eb 2035 case BSS_TYPE_AP_BSS:
fb0e707c 2036 if (wlvif->p2p)
045c745f
EP		 2037 return WL1271_ROLE_P2P_GO;
2038 else
2039 return WL1271_ROLE_AP;
b78b47eb
EP		 2040
2041 case BSS_TYPE_STA_BSS:
fb0e707c 2042 if (wlvif->p2p)
045c745f
EP		 2043 return WL1271_ROLE_P2P_CL;
2044 else
2045 return WL1271_ROLE_STA;
b78b47eb 2046
227e81e1
EP		 2047 case BSS_TYPE_IBSS:
2048 return WL1271_ROLE_IBSS;
2049
b78b47eb 2050 default:
536129c8 2051 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
b78b47eb
EP		 2052 }
2053 return WL12XX_INVALID_ROLE_TYPE;
2054}
2055
83587505 2056static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
87fbcb0f 2057{
e936bbe0 2058 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e5a359f8 2059 int i;
e936bbe0 2060
48e93e40
EP		 2061 /* clear everything but the persistent data */
2062 memset(wlvif, 0, offsetof(struct wl12xx_vif, persistent));
e936bbe0
EP		 2063
2064 switch (ieee80211_vif_type_p2p(vif)) {
2065 case NL80211_IFTYPE_P2P_CLIENT:
2066 wlvif->p2p = 1;
2067 /* fall-through */
2068 case NL80211_IFTYPE_STATION:
2069 wlvif->bss_type = BSS_TYPE_STA_BSS;
2070 break;
2071 case NL80211_IFTYPE_ADHOC:
2072 wlvif->bss_type = BSS_TYPE_IBSS;
2073 break;
2074 case NL80211_IFTYPE_P2P_GO:
2075 wlvif->p2p = 1;
2076 /* fall-through */
2077 case NL80211_IFTYPE_AP:
2078 wlvif->bss_type = BSS_TYPE_AP_BSS;
2079 break;
2080 default:
2081 wlvif->bss_type = MAX_BSS_TYPE;
2082 return -EOPNOTSUPP;
2083 }
2084
0603d891 2085 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2086 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
afaf8bdb 2087 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
a8ab39a4 2088
e936bbe0
EP		 2089 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2090 wlvif->bss_type == BSS_TYPE_IBSS) {
2091 /* init sta/ibss data */
2092 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2093 wl12xx_allocate_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2094 wl12xx_allocate_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2095 wl12xx_allocate_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
001e39a8 2096 wlcore_allocate_klv_template(wl, &wlvif->sta.klv_template_id);
15e05bc0
LC		 2097 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
2098 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
2099 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
e936bbe0
EP		 2100 } else {
2101 /* init ap data */
2102 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2103 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2104 wl12xx_allocate_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2105 wl12xx_allocate_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2106 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2107 wl12xx_allocate_rate_policy(wl,
2108 &wlvif->ap.ucast_rate_idx[i]);
42ec1f82 2109 wlvif->basic_rate_set = CONF_TX_ENABLED_RATES;
15e05bc0
LC		 2110 /*
2111 * TODO: check if basic_rate shouldn't be
2112 * wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2113 * instead (the same thing for STA above).
2114 */
42ec1f82 2115 wlvif->basic_rate = CONF_TX_ENABLED_RATES;
15e05bc0 2116 /* TODO: this seems to be used only for STA, check it */
42ec1f82 2117 wlvif->rate_set = CONF_TX_ENABLED_RATES;
e936bbe0 2118 }
a8ab39a4 2119
83587505
EP		 2120 wlvif->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2121 wlvif->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
6a899796
EP		 2122 wlvif->beacon_int = WL1271_DEFAULT_BEACON_INT;
2123
1b92f15e
EP		 2124 /*
2125 * mac80211 configures some values globally, while we treat them
2126 * per-interface. thus, on init, we have to copy them from wl
2127 */
2128 wlvif->band = wl->band;
61f845f4 2129 wlvif->channel = wl->channel;
6bd65029 2130 wlvif->power_level = wl->power_level;
83d08d3f 2131 wlvif->channel_type = wl->channel_type;
1b92f15e 2132
9eb599e9
EP		 2133 INIT_WORK(&wlvif->rx_streaming_enable_work,
2134 wl1271_rx_streaming_enable_work);
2135 INIT_WORK(&wlvif->rx_streaming_disable_work,
2136 wl1271_rx_streaming_disable_work);
c50a2825
EP		 2137 INIT_DELAYED_WORK(&wlvif->channel_switch_work,
2138 wlcore_channel_switch_work);
2139 INIT_DELAYED_WORK(&wlvif->connection_loss_work,
2140 wlcore_connection_loss_work);
87627214 2141 INIT_LIST_HEAD(&wlvif->list);
252efa4f 2142
9eb599e9
EP		 2143 setup_timer(&wlvif->rx_streaming_timer, wl1271_rx_streaming_timer,
2144 (unsigned long) wlvif);
e936bbe0 2145 return 0;
87fbcb0f
EP		 2146}
2147
1d095475 2148static bool wl12xx_init_fw(struct wl1271 *wl)
f5fc0f86 2149{
9ccd9217 2150 int retries = WL1271_BOOT_RETRIES;
71125abd 2151 bool booted = false;
1d095475
EP		 2152 struct wiphy *wiphy = wl->hw->wiphy;
2153 int ret;
f5fc0f86 2154
9ccd9217
JO		 2155 while (retries) {
2156 retries--;
3fcdab70 2157 ret = wl12xx_chip_wakeup(wl, false);
9ccd9217
JO		 2158 if (ret < 0)
2159 goto power_off;
f5fc0f86 2160
dd5512eb 2161 ret = wl->ops->boot(wl);
9ccd9217
JO		 2162 if (ret < 0)
2163 goto power_off;
f5fc0f86 2164
92c77c73
EP		 2165 ret = wl1271_hw_init(wl);
2166 if (ret < 0)
2167 goto irq_disable;
2168
71125abd
EP		 2169 booted = true;
2170 break;
eb5b28d0 2171
9ccd9217 2172irq_disable:
9ccd9217
JO		 2173 mutex_unlock(&wl->mutex);
2174 /* Unlocking the mutex in the middle of handling is
2175 inherently unsafe. In this case we deem it safe to do,
2176 because we need to let any possibly pending IRQ out of
4cc53383 2177 the system (and while we are WLCORE_STATE_OFF the IRQ
9ccd9217
JO		 2178 work function will not do anything.) Also, any other
2179 possible concurrent operations will fail due to the
2180 current state, hence the wl1271 struct should be safe. */
dd5512eb 2181 wlcore_disable_interrupts(wl);
a620865e
IY		 2182 wl1271_flush_deferred_work(wl);
2183 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 2184 mutex_lock(&wl->mutex);
2185power_off:
2186 wl1271_power_off(wl);
2187 }
eb5b28d0 2188
71125abd
EP		 2189 if (!booted) {
2190 wl1271_error("firmware boot failed despite %d retries",
2191 WL1271_BOOT_RETRIES);
2192 goto out;
2193 }
2194
4b7fac77 2195 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 2196
2197 /* update hw/fw version info in wiphy struct */
2198 wiphy->hw_version = wl->chip.id;
4b7fac77 2199 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 2200 sizeof(wiphy->fw_version));
2201
fb6a6819
LC		 2202 /*
2203 * Now we know if 11a is supported (info from the NVS), so disable
2204 * 11a channels if not supported
2205 */
2206 if (!wl->enable_11a)
2207 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2208
2209 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2210 wl->enable_11a ? "" : "not ");
2211
4cc53383 2212 wl->state = WLCORE_STATE_ON;
1d095475
EP		 2213out:
2214 return booted;
2215}
2216
92e712da
EP		 2217static bool wl12xx_dev_role_started(struct wl12xx_vif *wlvif)
2218{
2219 return wlvif->dev_hlid != WL12XX_INVALID_LINK_ID;
2220}
2221
4549d09c
EP		 2222/*
2223 * Check whether a fw switch (i.e. moving from one loaded
2224 * fw to another) is needed. This function is also responsible
2225 * for updating wl->last_vif_count, so it must be called before
2226 * loading a non-plt fw (so the correct fw (single-role/multi-role)
2227 * will be used).
2228 */
2229static bool wl12xx_need_fw_change(struct wl1271 *wl,
2230 struct vif_counter_data vif_counter_data,
2231 bool add)
2232{
2233 enum wl12xx_fw_type current_fw = wl->fw_type;
2234 u8 vif_count = vif_counter_data.counter;
2235
2236 if (test_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags))
2237 return false;
2238
2239 /* increase the vif count if this is a new vif */
2240 if (add && !vif_counter_data.cur_vif_running)
2241 vif_count++;
2242
2243 wl->last_vif_count = vif_count;
2244
2245 /* no need for fw change if the device is OFF */
4cc53383 2246 if (wl->state == WLCORE_STATE_OFF)
4549d09c
EP		 2247 return false;
2248
9b1a0a77
EP		 2249 /* no need for fw change if a single fw is used */
2250 if (!wl->mr_fw_name)
2251 return false;
2252
4549d09c
EP		 2253 if (vif_count > 1 && current_fw == WL12XX_FW_TYPE_NORMAL)
2254 return true;
2255 if (vif_count <= 1 && current_fw == WL12XX_FW_TYPE_MULTI)
2256 return true;
2257
2258 return false;
2259}
2260
3dee4393
EP		 2261/*
2262 * Enter "forced psm". Make sure the sta is in psm against the ap,
2263 * to make the fw switch a bit more disconnection-persistent.
2264 */
2265static void wl12xx_force_active_psm(struct wl1271 *wl)
2266{
2267 struct wl12xx_vif *wlvif;
2268
2269 wl12xx_for_each_wlvif_sta(wl, wlvif) {
2270 wl1271_ps_set_mode(wl, wlvif, STATION_POWER_SAVE_MODE);
2271 }
2272}
2273
1d095475
EP		 2274static int wl1271_op_add_interface(struct ieee80211_hw *hw,
2275 struct ieee80211_vif *vif)
2276{
2277 struct wl1271 *wl = hw->priv;
2278 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4549d09c 2279 struct vif_counter_data vif_count;
1d095475
EP		 2280 int ret = 0;
2281 u8 role_type;
2282 bool booted = false;
2283
ea086359
JB		 2284 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
2285 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
c1288b12 2286
1d095475
EP		 2287 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
2288 ieee80211_vif_type_p2p(vif), vif->addr);
2289
4549d09c
EP		 2290 wl12xx_get_vif_count(hw, vif, &vif_count);
2291
1d095475 2292 mutex_lock(&wl->mutex);
f750c820
EP		 2293 ret = wl1271_ps_elp_wakeup(wl);
2294 if (ret < 0)
2295 goto out_unlock;
2296
1d095475
EP		 2297 /*
2298 * in some very corner case HW recovery scenarios its possible to
2299 * get here before __wl1271_op_remove_interface is complete, so
2300 * opt out if that is the case.
2301 */
10c8cd01
EP		 2302 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) ||
2303 test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)) {
1d095475
EP		 2304 ret = -EBUSY;
2305 goto out;
2306 }
2307
3fcdab70 2308
83587505 2309 ret = wl12xx_init_vif_data(wl, vif);
1d095475
EP		 2310 if (ret < 0)
2311 goto out;
2312
2313 wlvif->wl = wl;
2314 role_type = wl12xx_get_role_type(wl, wlvif);
2315 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
2316 ret = -EINVAL;
2317 goto out;
2318 }
2319
4549d09c 2320 if (wl12xx_need_fw_change(wl, vif_count, true)) {
3dee4393 2321 wl12xx_force_active_psm(wl);
e9ba7152 2322 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
4549d09c
EP		 2323 mutex_unlock(&wl->mutex);
2324 wl1271_recovery_work(&wl->recovery_work);
2325 return 0;
2326 }
2327
1d095475
EP		 2328 /*
2329 * TODO: after the nvs issue will be solved, move this block
2330 * to start(), and make sure here the driver is ON.
2331 */
4cc53383 2332 if (wl->state == WLCORE_STATE_OFF) {
1d095475
EP		 2333 /*
2334 * we still need this in order to configure the fw
2335 * while uploading the nvs
2336 */
5e037e74 2337 memcpy(wl->addresses[0].addr, vif->addr, ETH_ALEN);
1d095475
EP		 2338
2339 booted = wl12xx_init_fw(wl);
2340 if (!booted) {
2341 ret = -EINVAL;
2342 goto out;
2343 }
2344 }
2345
1d095475
EP		 2346 ret = wl12xx_cmd_role_enable(wl, vif->addr,
2347 role_type, &wlvif->role_id);
2348 if (ret < 0)
2349 goto out;
2350
2351 ret = wl1271_init_vif_specific(wl, vif);
2352 if (ret < 0)
2353 goto out;
2354
87627214 2355 list_add(&wlvif->list, &wl->wlvif_list);
10c8cd01 2356 set_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags);
a4e4130d
EP		 2357
2358 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
2359 wl->ap_count++;
2360 else
2361 wl->sta_count++;
eb5b28d0 2362out:
f750c820
EP		 2363 wl1271_ps_elp_sleep(wl);
2364out_unlock:
f5fc0f86
LC		 2365 mutex_unlock(&wl->mutex);
2366
2367 return ret;
2368}
2369
7dece1c8 2370static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 2371 struct ieee80211_vif *vif,
7dece1c8 2372 bool reset_tx_queues)
f5fc0f86 2373{
536129c8 2374 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e5a359f8 2375 int i, ret;
2f18cf7c 2376 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
f5fc0f86 2377
1b72aecd 2378 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2379
10c8cd01
EP		 2380 if (!test_and_clear_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2381 return;
2382
13026dec 2383 /* because of hardware recovery, we may get here twice */
4cc53383 2384 if (wl->state == WLCORE_STATE_OFF)
13026dec
JO		 2385 return;
2386
1b72aecd 2387 wl1271_info("down");
f5fc0f86 2388
baf6277a 2389 if (wl->scan.state != WL1271_SCAN_STATE_IDLE &&
c50a2825 2390 wl->scan_wlvif == wlvif) {
55df5afb
AN		 2391 /*
2392 * Rearm the tx watchdog just before idling scan. This
2393 * prevents just-finished scans from triggering the watchdog
2394 */
2395 wl12xx_rearm_tx_watchdog_locked(wl);
2396
08688d6b 2397 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2398 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
c50a2825 2399 wl->scan_wlvif = NULL;
b739a42c 2400 wl->scan.req = NULL;
76a029fb 2401 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2402 }
2403
10199756
EP		 2404 if (wl->sched_vif == wlvif) {
2405 ieee80211_sched_scan_stopped(wl->hw);
2406 wl->sched_vif = NULL;
2407 }
2408
b78b47eb
EP		 2409 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2410 /* disable active roles */
2411 ret = wl1271_ps_elp_wakeup(wl);
2412 if (ret < 0)
2413 goto deinit;
2414
b890f4c3
EP		 2415 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2416 wlvif->bss_type == BSS_TYPE_IBSS) {
2417 if (wl12xx_dev_role_started(wlvif))
2418 wl12xx_stop_dev(wl, wlvif);
04e8079c
EP		 2419 }
2420
0603d891 2421 ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
b78b47eb
EP		 2422 if (ret < 0)
2423 goto deinit;
2424
2425 wl1271_ps_elp_sleep(wl);
2426 }
2427deinit:
e51ae9be 2428 /* clear all hlids (except system_hlid) */
afaf8bdb 2429 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2430
2431 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2432 wlvif->bss_type == BSS_TYPE_IBSS) {
2433 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
2434 wl12xx_free_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2435 wl12xx_free_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2436 wl12xx_free_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
001e39a8 2437 wlcore_free_klv_template(wl, &wlvif->sta.klv_template_id);
e5a359f8
EP		 2438 } else {
2439 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2440 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
2441 wl12xx_free_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2442 wl12xx_free_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2443 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2444 wl12xx_free_rate_policy(wl,
2445 &wlvif->ap.ucast_rate_idx[i]);
830be7e0 2446 wl1271_free_ap_keys(wl, wlvif);
e5a359f8 2447 }
b78b47eb 2448
3eba4a0e
ES		 2449 dev_kfree_skb(wlvif->probereq);
2450 wlvif->probereq = NULL;
d6a3cc2e 2451 wl12xx_tx_reset_wlvif(wl, wlvif);
e4120df9
EP		 2452 if (wl->last_wlvif == wlvif)
2453 wl->last_wlvif = NULL;
87627214 2454 list_del(&wlvif->list);
c7ffb902 2455 memset(wlvif->ap.sta_hlid_map, 0, sizeof(wlvif->ap.sta_hlid_map));
0603d891 2456 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2457 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
d6e19d13 2458
2f18cf7c 2459 if (is_ap)
a4e4130d
EP		 2460 wl->ap_count--;
2461 else
2462 wl->sta_count--;
2463
42066f9a
AN		 2464 /*
2465 * Last AP, have more stations. Configure sleep auth according to STA.
2466 * Don't do thin on unintended recovery.
2467 */
2468 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) &&
2469 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags))
2470 goto unlock;
2471
2f18cf7c
AN		 2472 if (wl->ap_count == 0 && is_ap && wl->sta_count) {
2473 u8 sta_auth = wl->conf.conn.sta_sleep_auth;
2474 /* Configure for power according to debugfs */
2475 if (sta_auth != WL1271_PSM_ILLEGAL)
2476 wl1271_acx_sleep_auth(wl, sta_auth);
2477 /* Configure for power always on */
2478 else if (wl->quirks & WLCORE_QUIRK_NO_ELP)
2479 wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
2480 /* Configure for ELP power saving */
2481 else
2482 wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP);
2483 }
2484
42066f9a 2485unlock:
baf6277a 2486 mutex_unlock(&wl->mutex);
d6bf9ada 2487
9eb599e9
EP		 2488 del_timer_sync(&wlvif->rx_streaming_timer);
2489 cancel_work_sync(&wlvif->rx_streaming_enable_work);
2490 cancel_work_sync(&wlvif->rx_streaming_disable_work);
c50a2825 2491 cancel_delayed_work_sync(&wlvif->connection_loss_work);
bd9dc49c 2492
baf6277a 2493 mutex_lock(&wl->mutex);
52a2a375 2494}
bd9dc49c 2495
52a2a375
JO		 2496static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2497 struct ieee80211_vif *vif)
2498{
2499 struct wl1271 *wl = hw->priv;
10c8cd01 2500 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
6e8cd331 2501 struct wl12xx_vif *iter;
4549d09c 2502 struct vif_counter_data vif_count;
52a2a375 2503
4549d09c 2504 wl12xx_get_vif_count(hw, vif, &vif_count);
52a2a375 2505 mutex_lock(&wl->mutex);
10c8cd01 2506
4cc53383 2507 if (wl->state == WLCORE_STATE_OFF ||
10c8cd01
EP		 2508 !test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2509 goto out;
2510
67353299
JO		 2511 /*
2512 * wl->vif can be null here if someone shuts down the interface
2513 * just when hardware recovery has been started.
2514 */
6e8cd331
EP		 2515 wl12xx_for_each_wlvif(wl, iter) {
2516 if (iter != wlvif)
2517 continue;
2518
536129c8 2519 __wl1271_op_remove_interface(wl, vif, true);
6e8cd331 2520 break;
67353299 2521 }
6e8cd331 2522 WARN_ON(iter != wlvif);
4549d09c 2523 if (wl12xx_need_fw_change(wl, vif_count, false)) {
3dee4393 2524 wl12xx_force_active_psm(wl);
e9ba7152 2525 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
4549d09c 2526 wl12xx_queue_recovery_work(wl);
4549d09c 2527 }
10c8cd01 2528out:
67353299 2529 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 2530}
2531
c0fad1b7
EP		 2532static int wl12xx_op_change_interface(struct ieee80211_hw *hw,
2533 struct ieee80211_vif *vif,
2534 enum nl80211_iftype new_type, bool p2p)
2535{
4549d09c
EP		 2536 struct wl1271 *wl = hw->priv;
2537 int ret;
2538
2539 set_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
c0fad1b7
EP		 2540 wl1271_op_remove_interface(hw, vif);
2541
249e9698 2542 vif->type = new_type;
c0fad1b7 2543 vif->p2p = p2p;
4549d09c
EP		 2544 ret = wl1271_op_add_interface(hw, vif);
2545
2546 clear_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
2547 return ret;
c0fad1b7
EP		 2548}
2549
3230f35e 2550static int wlcore_join(struct wl1271 *wl, struct wl12xx_vif *wlvif)
82429d32
JO		 2551{
2552 int ret;
536129c8 2553 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2554
69e5434c
JO		 2555 /*
2556 * One of the side effects of the JOIN command is that is clears
2557 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2558 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2559 * Currently the only valid scenario for JOIN during association
2560 * is on roaming, in which case we will also be given new keys.
2561 * Keep the below message for now, unless it starts bothering
2562 * users who really like to roam a lot :)
69e5434c 2563 */
ba8447f6 2564 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
69e5434c
JO		 2565 wl1271_info("JOIN while associated.");
2566
5ec8a448
EP		 2567 /* clear encryption type */
2568 wlvif->encryption_type = KEY_NONE;
2569
227e81e1 2570 if (is_ibss)
87fbcb0f 2571 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
18eab430
EP		 2572 else {
2573 if (wl->quirks & WLCORE_QUIRK_START_STA_FAILS) {
2574 /*
2575 * TODO: this is an ugly workaround for wl12xx fw
2576 * bug - we are not able to tx/rx after the first
2577 * start_sta, so make dummy start+stop calls,
2578 * and then call start_sta again.
2579 * this should be fixed in the fw.
2580 */
2581 wl12xx_cmd_role_start_sta(wl, wlvif);
2582 wl12xx_cmd_role_stop_sta(wl, wlvif);
2583 }
2584
87fbcb0f 2585 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
18eab430 2586 }
3230f35e
EP		 2587
2588 return ret;
2589}
2590
2591static int wl1271_ssid_set(struct wl12xx_vif *wlvif, struct sk_buff *skb,
2592 int offset)
2593{
2594 u8 ssid_len;
2595 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
2596 skb->len - offset);
2597
2598 if (!ptr) {
2599 wl1271_error("No SSID in IEs!");
2600 return -ENOENT;
2601 }
2602
2603 ssid_len = ptr[1];
2604 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2605 wl1271_error("SSID is too long!");
2606 return -EINVAL;
2607 }
2608
2609 wlvif->ssid_len = ssid_len;
2610 memcpy(wlvif->ssid, ptr+2, ssid_len);
2611 return 0;
2612}
2613
2614static int wlcore_set_ssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2615{
2616 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2617 struct sk_buff *skb;
2618 int ieoffset;
2619
2620 /* we currently only support setting the ssid from the ap probe req */
2621 if (wlvif->bss_type != BSS_TYPE_STA_BSS)
2622 return -EINVAL;
2623
2624 skb = ieee80211_ap_probereq_get(wl->hw, vif);
2625 if (!skb)
2626 return -EINVAL;
2627
2628 ieoffset = offsetof(struct ieee80211_mgmt,
2629 u.probe_req.variable);
2630 wl1271_ssid_set(wlvif, skb, ieoffset);
2631 dev_kfree_skb(skb);
2632
2633 return 0;
2634}
2635
2636static int wlcore_set_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
ec87011a
EP		 2637 struct ieee80211_bss_conf *bss_conf,
2638 u32 sta_rate_set)
3230f35e
EP		 2639{
2640 int ieoffset;
2641 int ret;
2642
2643 wlvif->aid = bss_conf->aid;
2644 wlvif->channel_type = bss_conf->channel_type;
2645 wlvif->beacon_int = bss_conf->beacon_int;
d50529c0 2646 wlvif->wmm_enabled = bss_conf->qos;
3230f35e
EP		 2647
2648 set_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags);
2649
2650 /*
2651 * with wl1271, we don't need to update the
2652 * beacon_int and dtim_period, because the firmware
2653 * updates it by itself when the first beacon is
2654 * received after a join.
2655 */
2656 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
82429d32 2657 if (ret < 0)
3230f35e 2658 return ret;
82429d32 2659
3230f35e
EP		 2660 /*
2661 * Get a template for hardware connection maintenance
2662 */
2663 dev_kfree_skb(wlvif->probereq);
2664 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
2665 wlvif,
2666 NULL);
2667 ieoffset = offsetof(struct ieee80211_mgmt,
2668 u.probe_req.variable);
2669 wl1271_ssid_set(wlvif, wlvif->probereq, ieoffset);
2670
2671 /* enable the connection monitoring feature */
2672 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
2673 if (ret < 0)
2674 return ret;
82429d32
JO		 2675
2676 /*
2677 * The join command disable the keep-alive mode, shut down its process,
2678 * and also clear the template config, so we need to reset it all after
2679 * the join. The acx_aid starts the keep-alive process, and the order
2680 * of the commands below is relevant.
2681 */
0603d891 2682 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
82429d32 2683 if (ret < 0)
3230f35e 2684 return ret;
82429d32 2685
0603d891 2686 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
82429d32 2687 if (ret < 0)
3230f35e 2688 return ret;
82429d32 2689
d2d66c56 2690 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32 2691 if (ret < 0)
3230f35e 2692 return ret;
82429d32 2693
0603d891 2694 ret = wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2695 wlvif->sta.klv_template_id,
82429d32
JO		 2696 ACX_KEEP_ALIVE_TPL_VALID);
2697 if (ret < 0)
3230f35e 2698 return ret;
82429d32 2699
6c7b5194
EP		 2700 /*
2701 * The default fw psm configuration is AUTO, while mac80211 default
2702 * setting is off (ACTIVE), so sync the fw with the correct value.
2703 */
2704 ret = wl1271_ps_set_mode(wl, wlvif, STATION_ACTIVE_MODE);
ec87011a
EP		 2705 if (ret < 0)
2706 return ret;
2707
2708 if (sta_rate_set) {
2709 wlvif->rate_set =
2710 wl1271_tx_enabled_rates_get(wl,
2711 sta_rate_set,
2712 wlvif->band);
2713 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
2714 if (ret < 0)
2715 return ret;
2716 }
6c7b5194 2717
82429d32
JO		 2718 return ret;
2719}
2720
3230f35e 2721static int wlcore_unset_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
c7f43e45
LC		 2722{
2723 int ret;
3230f35e
EP		 2724 bool sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
2725
2726 /* make sure we are connected (sta) joined */
2727 if (sta &&
2728 !test_and_clear_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
2729 return false;
2730
2731 /* make sure we are joined (ibss) */
2732 if (!sta &&
2733 test_and_clear_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags))
2734 return false;
2735
2736 if (sta) {
2737 /* use defaults when not associated */
2738 wlvif->aid = 0;
2739
2740 /* free probe-request template */
2741 dev_kfree_skb(wlvif->probereq);
2742 wlvif->probereq = NULL;
2743
2744 /* disable connection monitor features */
2745 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
2746 if (ret < 0)
2747 return ret;
2748
2749 /* Disable the keep-alive feature */
2750 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
2751 if (ret < 0)
2752 return ret;
2753 }
c7f43e45 2754
52630c5d 2755 if (test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags)) {
6e8cd331
EP		 2756 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2757
fcab1890 2758 wl12xx_cmd_stop_channel_switch(wl, wlvif);
6e8cd331 2759 ieee80211_chswitch_done(vif, false);
c50a2825 2760 cancel_delayed_work(&wlvif->channel_switch_work);
6d158ff3
SL		 2761 }
2762
4137c17c
EP		 2763 /* invalidate keep-alive template */
2764 wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2765 wlvif->sta.klv_template_id,
4137c17c
EP		 2766 ACX_KEEP_ALIVE_TPL_INVALID);
2767
b992c682 2768 /* reset TX security counters on a clean disconnect */
48e93e40
EP		 2769 wlvif->tx_security_last_seq_lsb = 0;
2770 wlvif->tx_security_seq = 0;
b992c682 2771
3230f35e 2772 return 0;
c7f43e45
LC		 2773}
2774
87fbcb0f 2775static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2776{
1b92f15e 2777 wlvif->basic_rate_set = wlvif->bitrate_masks[wlvif->band];
30d0c8fd 2778 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2779}
2780
9f259c4e
EP		 2781static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2782 struct ieee80211_conf *conf, u32 changed)
f5fc0f86 2783{
9f259c4e 2784 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
b6970ee5 2785 int ret;
ebba60c6 2786
d18da7fc
ES		 2787 if ((changed & IEEE80211_CONF_CHANGE_PS) && !is_ap) {
2788
2789 if ((conf->flags & IEEE80211_CONF_PS) &&
2790 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
5c0dc2fc 2791 !test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc 2792
5c0dc2fc
ES		 2793 int ps_mode;
2794 char *ps_mode_str;
2795
2796 if (wl->conf.conn.forced_ps) {
2797 ps_mode = STATION_POWER_SAVE_MODE;
2798 ps_mode_str = "forced";
2799 } else {
2800 ps_mode = STATION_AUTO_PS_MODE;
2801 ps_mode_str = "auto";
2802 }
2803
2804 wl1271_debug(DEBUG_PSM, "%s ps enabled", ps_mode_str);
2805
2806 ret = wl1271_ps_set_mode(wl, wlvif, ps_mode);
f5fc0f86 2807
d18da7fc 2808 if (ret < 0)
5c0dc2fc
ES		 2809 wl1271_warning("enter %s ps failed %d",
2810 ps_mode_str, ret);
f5fc0f86 2811
d18da7fc 2812 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
5c0dc2fc 2813 test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc
ES		 2814
2815 wl1271_debug(DEBUG_PSM, "auto ps disabled");
f5fc0f86 2816
0603d891 2817 ret = wl1271_ps_set_mode(wl, wlvif,
248a0018 2818 STATION_ACTIVE_MODE);
d18da7fc
ES		 2819 if (ret < 0)
2820 wl1271_warning("exit auto ps failed %d", ret);
2821 }
f5fc0f86
LC		 2822 }
2823
6bd65029 2824 if (conf->power_level != wlvif->power_level) {
0603d891 2825 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
f5fc0f86 2826 if (ret < 0)
9f259c4e 2827 return ret;
f5fc0f86 2828
6bd65029 2829 wlvif->power_level = conf->power_level;
f5fc0f86
LC		 2830 }
2831
9f259c4e
EP		 2832 return 0;
2833}
2834
2835static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2836{
2837 struct wl1271 *wl = hw->priv;
2838 struct wl12xx_vif *wlvif;
2839 struct ieee80211_conf *conf = &hw->conf;
b6970ee5 2840 int ret = 0;
9f259c4e 2841
b6970ee5 2842 wl1271_debug(DEBUG_MAC80211, "mac80211 config psm %s power %d %s"
9f259c4e 2843 " changed 0x%x",
9f259c4e
EP		 2844 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
2845 conf->power_level,
2846 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2847 changed);
2848
9f259c4e
EP		 2849 mutex_lock(&wl->mutex);
2850
9f259c4e
EP		 2851 if (changed & IEEE80211_CONF_CHANGE_POWER)
2852 wl->power_level = conf->power_level;
2853
4cc53383 2854 if (unlikely(wl->state != WLCORE_STATE_ON))
9f259c4e
EP		 2855 goto out;
2856
2857 ret = wl1271_ps_elp_wakeup(wl);
2858 if (ret < 0)
2859 goto out;
2860
2861 /* configure each interface */
2862 wl12xx_for_each_wlvif(wl, wlvif) {
2863 ret = wl12xx_config_vif(wl, wlvif, conf, changed);
2864 if (ret < 0)
2865 goto out_sleep;
2866 }
2867
f5fc0f86
LC		 2868out_sleep:
2869 wl1271_ps_elp_sleep(wl);
2870
2871out:
2872 mutex_unlock(&wl->mutex);
2873
2874 return ret;
2875}
2876
b54853f1
JO		 2877struct wl1271_filter_params {
2878 bool enabled;
2879 int mc_list_length;
2880 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2881};
2882
22bedad3
JP		 2883static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2884 struct netdev_hw_addr_list *mc_list)
c87dec9f 2885{
c87dec9f 2886 struct wl1271_filter_params *fp;
22bedad3 2887 struct netdev_hw_addr *ha;
c87dec9f 2888
74441130 2889 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2890 if (!fp) {
2891 wl1271_error("Out of memory setting filters.");
2892 return 0;
2893 }
2894
2895 /* update multicast filtering parameters */
c87dec9f 2896 fp->mc_list_length = 0;
22bedad3
JP		 2897 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2898 fp->enabled = false;
2899 } else {
2900 fp->enabled = true;
2901 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2902 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2903 ha->addr, ETH_ALEN);
c87dec9f 2904 fp->mc_list_length++;
22bedad3 2905 }
c87dec9f
JO		 2906 }
2907
b54853f1 2908 return (u64)(unsigned long)fp;
c87dec9f 2909}
f5fc0f86 2910
b54853f1
JO		 2911#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2912 FIF_ALLMULTI | \
2913 FIF_FCSFAIL | \
2914 FIF_BCN_PRBRESP_PROMISC | \
2915 FIF_CONTROL | \
2916 FIF_OTHER_BSS)
2917
f5fc0f86
LC		 2918static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2919 unsigned int changed,
c87dec9f 2920 unsigned int *total, u64 multicast)
f5fc0f86 2921{
b54853f1 2922 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2923 struct wl1271 *wl = hw->priv;
6e8cd331 2924 struct wl12xx_vif *wlvif;
536129c8 2925
b54853f1 2926 int ret;
f5fc0f86 2927
7d057869
AN		 2928 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2929 " total %x", changed, *total);
f5fc0f86 2930
b54853f1
JO		 2931 mutex_lock(&wl->mutex);
2932
2c10bb9c
SD		 2933 *total &= WL1271_SUPPORTED_FILTERS;
2934 changed &= WL1271_SUPPORTED_FILTERS;
2935
4cc53383 2936 if (unlikely(wl->state != WLCORE_STATE_ON))
b54853f1
JO		 2937 goto out;
2938
a620865e 2939 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2940 if (ret < 0)
2941 goto out;
2942
6e8cd331
EP		 2943 wl12xx_for_each_wlvif(wl, wlvif) {
2944 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
2945 if (*total & FIF_ALLMULTI)
2946 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2947 false,
2948 NULL, 0);
2949 else if (fp)
2950 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2951 fp->enabled,
2952 fp->mc_list,
2953 fp->mc_list_length);
2954 if (ret < 0)
2955 goto out_sleep;
2956 }
7d057869 2957 }
f5fc0f86 2958
08c1d1c7
EP		 2959 /*
2960 * the fw doesn't provide an api to configure the filters. instead,
2961 * the filters configuration is based on the active roles / ROC
2962 * state.
2963 */
b54853f1
JO		 2964
2965out_sleep:
2966 wl1271_ps_elp_sleep(wl);
2967
2968out:
2969 mutex_unlock(&wl->mutex);
14b228a0 2970 kfree(fp);
f5fc0f86
LC		 2971}
2972
170d0e67
EP		 2973static int wl1271_record_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2974 u8 id, u8 key_type, u8 key_size,
2975 const u8 *key, u8 hlid, u32 tx_seq_32,
2976 u16 tx_seq_16)
7f179b46
AN		 2977{
2978 struct wl1271_ap_key *ap_key;
2979 int i;
2980
2981 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2982
2983 if (key_size > MAX_KEY_SIZE)
2984 return -EINVAL;
2985
2986 /*
2987 * Find next free entry in ap_keys. Also check we are not replacing
2988 * an existing key.
2989 */
2990 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67 2991 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2992 break;
2993
170d0e67 2994 if (wlvif->ap.recorded_keys[i]->id == id) {
7f179b46
AN		 2995 wl1271_warning("trying to record key replacement");
2996 return -EINVAL;
2997 }
2998 }
2999
3000 if (i == MAX_NUM_KEYS)
3001 return -EBUSY;
3002
3003 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
3004 if (!ap_key)
3005 return -ENOMEM;
3006
3007 ap_key->id = id;
3008 ap_key->key_type = key_type;
3009 ap_key->key_size = key_size;
3010 memcpy(ap_key->key, key, key_size);
3011 ap_key->hlid = hlid;
3012 ap_key->tx_seq_32 = tx_seq_32;
3013 ap_key->tx_seq_16 = tx_seq_16;
3014
170d0e67 3015 wlvif->ap.recorded_keys[i] = ap_key;
7f179b46
AN		 3016 return 0;
3017}
3018
170d0e67 3019static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 3020{
3021 int i;
3022
3023 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67
EP		 3024 kfree(wlvif->ap.recorded_keys[i]);
3025 wlvif->ap.recorded_keys[i] = NULL;
7f179b46
AN		 3026 }
3027}
3028
a8ab39a4 3029static int wl1271_ap_init_hwenc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 3030{
3031 int i, ret = 0;
3032 struct wl1271_ap_key *key;
3033 bool wep_key_added = false;
3034
3035 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 3036 u8 hlid;
170d0e67 3037 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 3038 break;
3039
170d0e67 3040 key = wlvif->ap.recorded_keys[i];
7f97b487
EP		 3041 hlid = key->hlid;
3042 if (hlid == WL12XX_INVALID_LINK_ID)
a8ab39a4 3043 hlid = wlvif->ap.bcast_hlid;
7f97b487 3044
a8ab39a4 3045 ret = wl1271_cmd_set_ap_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 3046 key->id, key->key_type,
3047 key->key_size, key->key,
7f97b487 3048 hlid, key->tx_seq_32,
7f179b46
AN		 3049 key->tx_seq_16);
3050 if (ret < 0)
3051 goto out;
3052
3053 if (key->key_type == KEY_WEP)
3054 wep_key_added = true;
3055 }
3056
3057 if (wep_key_added) {
f75c753f 3058 ret = wl12xx_cmd_set_default_wep_key(wl, wlvif->default_key,
a8ab39a4 3059 wlvif->ap.bcast_hlid);
7f179b46
AN		 3060 if (ret < 0)
3061 goto out;
3062 }
3063
3064out:
170d0e67 3065 wl1271_free_ap_keys(wl, wlvif);
7f179b46
AN		 3066 return ret;
3067}
3068
536129c8
EP		 3069static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3070 u16 action, u8 id, u8 key_type,
7f179b46
AN		 3071 u8 key_size, const u8 *key, u32 tx_seq_32,
3072 u16 tx_seq_16, struct ieee80211_sta *sta)
3073{
3074 int ret;
536129c8 3075 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 3076
3077 if (is_ap) {
3078 struct wl1271_station *wl_sta;
3079 u8 hlid;
3080
3081 if (sta) {
3082 wl_sta = (struct wl1271_station *)sta->drv_priv;
3083 hlid = wl_sta->hlid;
3084 } else {
a8ab39a4 3085 hlid = wlvif->ap.bcast_hlid;
7f179b46
AN		 3086 }
3087
53d40d0b 3088 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
7f179b46
AN		 3089 /*
3090 * We do not support removing keys after AP shutdown.
3091 * Pretend we do to make mac80211 happy.
3092 */
3093 if (action != KEY_ADD_OR_REPLACE)
3094 return 0;
3095
170d0e67 3096 ret = wl1271_record_ap_key(wl, wlvif, id,
7f179b46
AN		 3097 key_type, key_size,
3098 key, hlid, tx_seq_32,
3099 tx_seq_16);
3100 } else {
a8ab39a4 3101 ret = wl1271_cmd_set_ap_key(wl, wlvif, action,
7f179b46
AN		 3102 id, key_type, key_size,
3103 key, hlid, tx_seq_32,
3104 tx_seq_16);
3105 }
3106
3107 if (ret < 0)
3108 return ret;
3109 } else {
3110 const u8 *addr;
3111 static const u8 bcast_addr[ETH_ALEN] = {
3112 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
3113 };
3114
3115 addr = sta ? sta->addr : bcast_addr;
3116
3117 if (is_zero_ether_addr(addr)) {
3118 /* We dont support TX only encryption */
3119 return -EOPNOTSUPP;
3120 }
3121
3122 /* The wl1271 does not allow to remove unicast keys - they
3123 will be cleared automatically on next CMD_JOIN. Ignore the
3124 request silently, as we dont want the mac80211 to emit
3125 an error message. */
3126 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
3127 return 0;
3128
010d3d30
EP		 3129 /* don't remove key if hlid was already deleted */
3130 if (action == KEY_REMOVE &&
154da67c 3131 wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
010d3d30
EP		 3132 return 0;
3133
a8ab39a4 3134 ret = wl1271_cmd_set_sta_key(wl, wlvif, action,
7f179b46
AN		 3135 id, key_type, key_size,
3136 key, addr, tx_seq_32,
3137 tx_seq_16);
3138 if (ret < 0)
3139 return ret;
3140
3141 /* the default WEP key needs to be configured at least once */
3142 if (key_type == KEY_WEP) {
c690ec81 3143 ret = wl12xx_cmd_set_default_wep_key(wl,
f75c753f
EP		 3144 wlvif->default_key,
3145 wlvif->sta.hlid);
7f179b46
AN		 3146 if (ret < 0)
3147 return ret;
3148 }
3149 }
3150
3151 return 0;
3152}
3153
a1c597f2 3154static int wlcore_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
f5fc0f86
LC		 3155 struct ieee80211_vif *vif,
3156 struct ieee80211_sta *sta,
3157 struct ieee80211_key_conf *key_conf)
3158{
3159 struct wl1271 *wl = hw->priv;
af390f4d
EP		 3160 int ret;
3161 bool might_change_spare =
3162 key_conf->cipher == WL1271_CIPHER_SUITE_GEM ||
3163 key_conf->cipher == WLAN_CIPHER_SUITE_TKIP;
3164
3165 if (might_change_spare) {
3166 /*
3167 * stop the queues and flush to ensure the next packets are
3168 * in sync with FW spare block accounting
3169 */
3170 mutex_lock(&wl->mutex);
3171 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3172 mutex_unlock(&wl->mutex);
3173
3174 wl1271_tx_flush(wl);
3175 }
3176
3177 mutex_lock(&wl->mutex);
3178
3179 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3180 ret = -EAGAIN;
3181 goto out_wake_queues;
3182 }
a1c597f2 3183
af390f4d
EP		 3184 ret = wl1271_ps_elp_wakeup(wl);
3185 if (ret < 0)
3186 goto out_wake_queues;
3187
3188 ret = wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
3189
3190 wl1271_ps_elp_sleep(wl);
3191
3192out_wake_queues:
3193 if (might_change_spare)
3194 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3195
3196 mutex_unlock(&wl->mutex);
3197
3198 return ret;
a1c597f2
AN		 3199}
3200
3201int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
3202 struct ieee80211_vif *vif,
3203 struct ieee80211_sta *sta,
3204 struct ieee80211_key_conf *key_conf)
3205{
536129c8 3206 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 3207 int ret;
ac4e4ce5
JO		 3208 u32 tx_seq_32 = 0;
3209 u16 tx_seq_16 = 0;
f5fc0f86
LC		 3210 u8 key_type;
3211
f5fc0f86
LC		 3212 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
3213
7f179b46 3214 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 3215 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 3216 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 3217 key_conf->keylen, key_conf->flags);
3218 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
3219
97359d12
JB		 3220 switch (key_conf->cipher) {
3221 case WLAN_CIPHER_SUITE_WEP40:
3222 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 3223 key_type = KEY_WEP;
3224
3225 key_conf->hw_key_idx = key_conf->keyidx;
3226 break;
97359d12 3227 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 3228 key_type = KEY_TKIP;
3229
3230 key_conf->hw_key_idx = key_conf->keyidx;
48e93e40
EP		 3231 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3232 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3233 break;
97359d12 3234 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 3235 key_type = KEY_AES;
3236
12d4b975 3237 key_conf->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
48e93e40
EP		 3238 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3239 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3240 break;
7a55724e
JO		 3241 case WL1271_CIPHER_SUITE_GEM:
3242 key_type = KEY_GEM;
48e93e40
EP		 3243 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3244 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
7a55724e 3245 break;
f5fc0f86 3246 default:
97359d12 3247 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86 3248
af390f4d 3249 return -EOPNOTSUPP;
f5fc0f86
LC		 3250 }
3251
3252 switch (cmd) {
3253 case SET_KEY:
536129c8 3254 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 3255 key_conf->keyidx, key_type,
3256 key_conf->keylen, key_conf->key,
3257 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 3258 if (ret < 0) {
3259 wl1271_error("Could not add or replace key");
af390f4d 3260 return ret;
f5fc0f86 3261 }
5ec8a448
EP		 3262
3263 /*
3264 * reconfiguring arp response if the unicast (or common)
3265 * encryption key type was changed
3266 */
3267 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3268 (sta || key_type == KEY_WEP) &&
3269 wlvif->encryption_type != key_type) {
3270 wlvif->encryption_type = key_type;
3271 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
3272 if (ret < 0) {
3273 wl1271_warning("build arp rsp failed: %d", ret);
af390f4d 3274 return ret;
5ec8a448
EP		 3275 }
3276 }
f5fc0f86
LC		 3277 break;
3278
3279 case DISABLE_KEY:
536129c8 3280 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 3281 key_conf->keyidx, key_type,
3282 key_conf->keylen, key_conf->key,
3283 0, 0, sta);
f5fc0f86
LC		 3284 if (ret < 0) {
3285 wl1271_error("Could not remove key");
af390f4d 3286 return ret;
f5fc0f86
LC		 3287 }
3288 break;
3289
3290 default:
3291 wl1271_error("Unsupported key cmd 0x%x", cmd);
af390f4d 3292 return -EOPNOTSUPP;
f5fc0f86
LC		 3293 }
3294
f5fc0f86
LC		 3295 return ret;
3296}
a1c597f2 3297EXPORT_SYMBOL_GPL(wlcore_set_key);
f5fc0f86 3298
6b70e7eb
VG		 3299void wlcore_regdomain_config(struct wl1271 *wl)
3300{
3301 int ret;
3302
3303 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
3304 return;
3305
3306 mutex_lock(&wl->mutex);
3307 ret = wl1271_ps_elp_wakeup(wl);
3308 if (ret < 0)
3309 goto out;
3310
3311 ret = wlcore_cmd_regdomain_config_locked(wl);
3312 if (ret < 0) {
3313 wl12xx_queue_recovery_work(wl);
3314 goto out;
3315 }
3316
3317 wl1271_ps_elp_sleep(wl);
3318out:
3319 mutex_unlock(&wl->mutex);
3320}
3321
f5fc0f86 3322static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 3323 struct ieee80211_vif *vif,
f5fc0f86
LC		 3324 struct cfg80211_scan_request *req)
3325{
3326 struct wl1271 *wl = hw->priv;
3327 int ret;
3328 u8 *ssid = NULL;
abb0b3bf 3329 size_t len = 0;
f5fc0f86
LC		 3330
3331 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
3332
3333 if (req->n_ssids) {
3334 ssid = req->ssids[0].ssid;
abb0b3bf 3335 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 3336 }
3337
3338 mutex_lock(&wl->mutex);
3339
4cc53383 3340 if (unlikely(wl->state != WLCORE_STATE_ON)) {
b739a42c
JO		 3341 /*
3342 * We cannot return -EBUSY here because cfg80211 will expect
3343 * a call to ieee80211_scan_completed if we do - in this case
3344 * there won't be any call.
3345 */
3346 ret = -EAGAIN;
3347 goto out;
3348 }
3349
a620865e 3350 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3351 if (ret < 0)
3352 goto out;
3353
97fd311a
EP		 3354 /* fail if there is any role in ROC */
3355 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
92e712da
EP		 3356 /* don't allow scanning right now */
3357 ret = -EBUSY;
3358 goto out_sleep;
3359 }
3360
78e28062 3361 ret = wlcore_scan(hw->priv, vif, ssid, len, req);
251c177f 3362out_sleep:
f5fc0f86 3363 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 3364out:
3365 mutex_unlock(&wl->mutex);
3366
3367 return ret;
3368}
3369
73ecce31
EP		 3370static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
3371 struct ieee80211_vif *vif)
3372{
3373 struct wl1271 *wl = hw->priv;
78e28062 3374 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
73ecce31
EP		 3375 int ret;
3376
3377 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
3378
3379 mutex_lock(&wl->mutex);
3380
4cc53383 3381 if (unlikely(wl->state != WLCORE_STATE_ON))
73ecce31
EP		 3382 goto out;
3383
3384 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
3385 goto out;
3386
3387 ret = wl1271_ps_elp_wakeup(wl);
3388 if (ret < 0)
3389 goto out;
3390
3391 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
78e28062 3392 ret = wl->ops->scan_stop(wl, wlvif);
73ecce31
EP		 3393 if (ret < 0)
3394 goto out_sleep;
3395 }
55df5afb
AN		 3396
3397 /*
3398 * Rearm the tx watchdog just before idling scan. This
3399 * prevents just-finished scans from triggering the watchdog
3400 */
3401 wl12xx_rearm_tx_watchdog_locked(wl);
3402
73ecce31
EP		 3403 wl->scan.state = WL1271_SCAN_STATE_IDLE;
3404 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
c50a2825 3405 wl->scan_wlvif = NULL;
73ecce31
EP		 3406 wl->scan.req = NULL;
3407 ieee80211_scan_completed(wl->hw, true);
3408
3409out_sleep:
3410 wl1271_ps_elp_sleep(wl);
3411out:
3412 mutex_unlock(&wl->mutex);
3413
3414 cancel_delayed_work_sync(&wl->scan_complete_work);
3415}
3416
33c2c06c
LC		 3417static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
3418 struct ieee80211_vif *vif,
3419 struct cfg80211_sched_scan_request *req,
3420 struct ieee80211_sched_scan_ies *ies)
3421{
3422 struct wl1271 *wl = hw->priv;
536129c8 3423 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3424 int ret;
3425
3426 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
3427
3428 mutex_lock(&wl->mutex);
3429
4cc53383 3430 if (unlikely(wl->state != WLCORE_STATE_ON)) {
9e0dc890
PF		 3431 ret = -EAGAIN;
3432 goto out;
3433 }
3434
33c2c06c
LC		 3435 ret = wl1271_ps_elp_wakeup(wl);
3436 if (ret < 0)
3437 goto out;
3438
78e28062 3439 ret = wl->ops->sched_scan_start(wl, wlvif, req, ies);
33c2c06c
LC		 3440 if (ret < 0)
3441 goto out_sleep;
3442
10199756 3443 wl->sched_vif = wlvif;
33c2c06c
LC		 3444
3445out_sleep:
3446 wl1271_ps_elp_sleep(wl);
3447out:
3448 mutex_unlock(&wl->mutex);
3449 return ret;
3450}
3451
3452static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3453 struct ieee80211_vif *vif)
3454{
3455 struct wl1271 *wl = hw->priv;
78f85f50 3456 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3457 int ret;
3458
3459 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3460
3461 mutex_lock(&wl->mutex);
3462
4cc53383 3463 if (unlikely(wl->state != WLCORE_STATE_ON))
9e0dc890
PF		 3464 goto out;
3465
33c2c06c
LC		 3466 ret = wl1271_ps_elp_wakeup(wl);
3467 if (ret < 0)
3468 goto out;
3469
78e28062 3470 wl->ops->sched_scan_stop(wl, wlvif);
33c2c06c
LC		 3471
3472 wl1271_ps_elp_sleep(wl);
3473out:
3474 mutex_unlock(&wl->mutex);
3475}
3476
68d069c4
AN		 3477static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3478{
3479 struct wl1271 *wl = hw->priv;
3480 int ret = 0;
3481
3482 mutex_lock(&wl->mutex);
3483
4cc53383 3484 if (unlikely(wl->state != WLCORE_STATE_ON)) {
68d069c4
AN		 3485 ret = -EAGAIN;
3486 goto out;
3487 }
3488
a620865e 3489 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3490 if (ret < 0)
3491 goto out;
3492
5f704d18 3493 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3494 if (ret < 0)
3495 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3496
3497 wl1271_ps_elp_sleep(wl);
3498
3499out:
3500 mutex_unlock(&wl->mutex);
3501
3502 return ret;
3503}
3504
f5fc0f86
LC		 3505static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3506{
3507 struct wl1271 *wl = hw->priv;
6e8cd331 3508 struct wl12xx_vif *wlvif;
aecb0565 3509 int ret = 0;
f5fc0f86
LC		 3510
3511 mutex_lock(&wl->mutex);
3512
4cc53383 3513 if (unlikely(wl->state != WLCORE_STATE_ON)) {
f8d9802f 3514 ret = -EAGAIN;
aecb0565 3515 goto out;
f8d9802f 3516 }
aecb0565 3517
a620865e 3518 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3519 if (ret < 0)
3520 goto out;
3521
6e8cd331
EP		 3522 wl12xx_for_each_wlvif(wl, wlvif) {
3523 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
3524 if (ret < 0)
3525 wl1271_warning("set rts threshold failed: %d", ret);
3526 }
f5fc0f86
LC		 3527 wl1271_ps_elp_sleep(wl);
3528
3529out:
3530 mutex_unlock(&wl->mutex);
3531
3532 return ret;
3533}
3534
d48055d9
EP		 3535static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3536{
3537 int len;
3538 const u8 *next, *end = skb->data + skb->len;
3539 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3540 skb->len - ieoffset);
3541 if (!ie)
3542 return;
3543 len = ie[1] + 2;
3544 next = ie + len;
3545 memmove(ie, next, end - next);
3546 skb_trim(skb, skb->len - len);
3547}
3548
26b4bf2e
EP		 3549static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3550 unsigned int oui, u8 oui_type,
3551 int ieoffset)
3552{
3553 int len;
3554 const u8 *next, *end = skb->data + skb->len;
3555 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3556 skb->data + ieoffset,
3557 skb->len - ieoffset);
3558 if (!ie)
3559 return;
3560 len = ie[1] + 2;
3561 next = ie + len;
3562 memmove(ie, next, end - next);
3563 skb_trim(skb, skb->len - len);
3564}
3565
341f2c11
AN		 3566static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl, u32 rates,
3567 struct ieee80211_vif *vif)
560f0024 3568{
cdaac628 3569 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
560f0024
AN		 3570 struct sk_buff *skb;
3571 int ret;
3572
341f2c11 3573 skb = ieee80211_proberesp_get(wl->hw, vif);
560f0024 3574 if (!skb)
341f2c11 3575 return -EOPNOTSUPP;
560f0024 3576
cdaac628 3577 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
560f0024
AN		 3578 CMD_TEMPL_AP_PROBE_RESPONSE,
3579 skb->data,
3580 skb->len, 0,
3581 rates);
560f0024 3582 dev_kfree_skb(skb);
62c2e579
LC		 3583
3584 if (ret < 0)
3585 goto out;
3586
3587 wl1271_debug(DEBUG_AP, "probe response updated");
3588 set_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags);
3589
3590out:
560f0024
AN		 3591 return ret;
3592}
3593
3594static int wl1271_ap_set_probe_resp_tmpl_legacy(struct wl1271 *wl,
3595 struct ieee80211_vif *vif,
3596 u8 *probe_rsp_data,
3597 size_t probe_rsp_len,
3598 u32 rates)
68eaaf6e 3599{
1fe9f161
EP		 3600 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3601 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
68eaaf6e
AN		 3602 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3603 int ssid_ie_offset, ie_offset, templ_len;
3604 const u8 *ptr;
3605
3606 /* no need to change probe response if the SSID is set correctly */
1fe9f161 3607 if (wlvif->ssid_len > 0)
cdaac628 3608 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3609 CMD_TEMPL_AP_PROBE_RESPONSE,
3610 probe_rsp_data,
3611 probe_rsp_len, 0,
3612 rates);
3613
3614 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3615 wl1271_error("probe_rsp template too big");
3616 return -EINVAL;
3617 }
3618
3619 /* start searching from IE offset */
3620 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3621
3622 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3623 probe_rsp_len - ie_offset);
3624 if (!ptr) {
3625 wl1271_error("No SSID in beacon!");
3626 return -EINVAL;
3627 }
3628
3629 ssid_ie_offset = ptr - probe_rsp_data;
3630 ptr += (ptr[1] + 2);
3631
3632 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3633
3634 /* insert SSID from bss_conf */
3635 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3636 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3637 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3638 bss_conf->ssid, bss_conf->ssid_len);
3639 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3640
3641 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3642 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3643 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3644
cdaac628 3645 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3646 CMD_TEMPL_AP_PROBE_RESPONSE,
3647 probe_rsp_templ,
3648 templ_len, 0,
3649 rates);
3650}
3651
e78a287a 3652static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
0603d891 3653 struct ieee80211_vif *vif,
f5fc0f86
LC		 3654 struct ieee80211_bss_conf *bss_conf,
3655 u32 changed)
3656{
0603d891 3657 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3658 int ret = 0;
f5fc0f86 3659
e78a287a
AN		 3660 if (changed & BSS_CHANGED_ERP_SLOT) {
3661 if (bss_conf->use_short_slot)
0603d891 3662 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
e78a287a 3663 else
0603d891 3664 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
e78a287a
AN		 3665 if (ret < 0) {
3666 wl1271_warning("Set slot time failed %d", ret);
3667 goto out;
3668 }
3669 }
f5fc0f86 3670
e78a287a
AN		 3671 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3672 if (bss_conf->use_short_preamble)
0603d891 3673 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
e78a287a 3674 else
0603d891 3675 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
e78a287a 3676 }
f5fc0f86 3677
e78a287a
AN		 3678 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3679 if (bss_conf->use_cts_prot)
0603d891
EP		 3680 ret = wl1271_acx_cts_protect(wl, wlvif,
3681 CTSPROTECT_ENABLE);
e78a287a 3682 else
0603d891
EP		 3683 ret = wl1271_acx_cts_protect(wl, wlvif,
3684 CTSPROTECT_DISABLE);
e78a287a
AN		 3685 if (ret < 0) {
3686 wl1271_warning("Set ctsprotect failed %d", ret);
3687 goto out;
3688 }
3689 }
f8d9802f 3690
e78a287a
AN		 3691out:
3692 return ret;
3693}
f5fc0f86 3694
62c2e579
LC		 3695static int wlcore_set_beacon_template(struct wl1271 *wl,
3696 struct ieee80211_vif *vif,
3697 bool is_ap)
3698{
3699 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3700 struct ieee80211_hdr *hdr;
3701 u32 min_rate;
3702 int ret;
3703 int ieoffset = offsetof(struct ieee80211_mgmt,
3704 u.beacon.variable);
3705 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3706 u16 tmpl_id;
3707
3708 if (!beacon) {
3709 ret = -EINVAL;
3710 goto out;
3711 }
3712
3713 wl1271_debug(DEBUG_MASTER, "beacon updated");
3714
3230f35e 3715 ret = wl1271_ssid_set(wlvif, beacon, ieoffset);
62c2e579
LC		 3716 if (ret < 0) {
3717 dev_kfree_skb(beacon);
3718 goto out;
3719 }
3720 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3721 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3722 CMD_TEMPL_BEACON;
3723 ret = wl1271_cmd_template_set(wl, wlvif->role_id, tmpl_id,
3724 beacon->data,
3725 beacon->len, 0,
3726 min_rate);
3727 if (ret < 0) {
3728 dev_kfree_skb(beacon);
3729 goto out;
3730 }
3731
d50529c0
EP		 3732 wlvif->wmm_enabled =
3733 cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
3734 WLAN_OUI_TYPE_MICROSOFT_WMM,
3735 beacon->data + ieoffset,
3736 beacon->len - ieoffset);
3737
62c2e579
LC		 3738 /*
3739 * In case we already have a probe-resp beacon set explicitly
3740 * by usermode, don't use the beacon data.
3741 */
3742 if (test_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags))
3743 goto end_bcn;
3744
3745 /* remove TIM ie from probe response */
3746 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3747
3748 /*
3749 * remove p2p ie from probe response.
3750 * the fw reponds to probe requests that don't include
3751 * the p2p ie. probe requests with p2p ie will be passed,
3752 * and will be responded by the supplicant (the spec
3753 * forbids including the p2p ie when responding to probe
3754 * requests that didn't include it).
3755 */
3756 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3757 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3758
3759 hdr = (struct ieee80211_hdr *) beacon->data;
3760 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3761 IEEE80211_STYPE_PROBE_RESP);
3762 if (is_ap)
3763 ret = wl1271_ap_set_probe_resp_tmpl_legacy(wl, vif,
3764 beacon->data,
3765 beacon->len,
3766 min_rate);
3767 else
3768 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
3769 CMD_TEMPL_PROBE_RESPONSE,
3770 beacon->data,
3771 beacon->len, 0,
3772 min_rate);
3773end_bcn:
3774 dev_kfree_skb(beacon);
3775 if (ret < 0)
3776 goto out;
3777
3778out:
3779 return ret;
3780}
3781
e78a287a
AN		 3782static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3783 struct ieee80211_vif *vif,
3784 struct ieee80211_bss_conf *bss_conf,
3785 u32 changed)
3786{
87fbcb0f 3787 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3788 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3789 int ret = 0;
3790
48af2eb0 3791 if (changed & BSS_CHANGED_BEACON_INT) {
e78a287a 3792 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3793 bss_conf->beacon_int);
3794
6a899796 3795 wlvif->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3796 }
3797
560f0024
AN		 3798 if ((changed & BSS_CHANGED_AP_PROBE_RESP) && is_ap) {
3799 u32 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
62c2e579
LC		 3800
3801 wl1271_ap_set_probe_resp_tmpl(wl, rate, vif);
560f0024
AN		 3802 }
3803
48af2eb0 3804 if (changed & BSS_CHANGED_BEACON) {
62c2e579 3805 ret = wlcore_set_beacon_template(wl, vif, is_ap);
e78a287a
AN		 3806 if (ret < 0)
3807 goto out;
3808 }
3809
3810out:
560f0024
AN		 3811 if (ret != 0)
3812 wl1271_error("beacon info change failed: %d", ret);
e78a287a
AN		 3813 return ret;
3814}
3815
3816/* AP mode changes */
3817static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3818 struct ieee80211_vif *vif,
3819 struct ieee80211_bss_conf *bss_conf,
3820 u32 changed)
3821{
87fbcb0f 3822 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3823 int ret = 0;
e0d8bbf0 3824
b6970ee5 3825 if (changed & BSS_CHANGED_BASIC_RATES) {
e78a287a 3826 u32 rates = bss_conf->basic_rates;
5da11dcd 3827
87fbcb0f 3828 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 3829 wlvif->band);
d2d66c56 3830 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3831 wlvif->basic_rate_set);
70f47424 3832
87fbcb0f 3833 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3834 if (ret < 0) {
70f47424 3835 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3836 goto out;
3837 }
c45a85b5 3838
784f694d 3839 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3840 if (ret < 0)
3841 goto out;
62c2e579
LC		 3842
3843 ret = wl1271_ap_set_probe_resp_tmpl(wl, wlvif->basic_rate, vif);
3844 if (ret < 0)
3845 goto out;
3846
3847 ret = wlcore_set_beacon_template(wl, vif, true);
3848 if (ret < 0)
3849 goto out;
e78a287a 3850 }
2f6724b2 3851
e78a287a
AN		 3852 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3853 if (ret < 0)
3854 goto out;
30240fc7 3855
48af2eb0 3856 if (changed & BSS_CHANGED_BEACON_ENABLED) {
e78a287a 3857 if (bss_conf->enable_beacon) {
53d40d0b 3858 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
87fbcb0f 3859 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3860 if (ret < 0)
3861 goto out;
e0d8bbf0 3862
a8ab39a4 3863 ret = wl1271_ap_init_hwenc(wl, wlvif);
7f179b46
AN		 3864 if (ret < 0)
3865 goto out;
cf42039f 3866
53d40d0b 3867 set_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
cf42039f 3868 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3869 }
e78a287a 3870 } else {
53d40d0b 3871 if (test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
0603d891 3872 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
e78a287a
AN		 3873 if (ret < 0)
3874 goto out;
e0d8bbf0 3875
53d40d0b 3876 clear_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
560f0024
AN		 3877 clear_bit(WLVIF_FLAG_AP_PROBE_RESP_SET,
3878 &wlvif->flags);
e78a287a
AN		 3879 wl1271_debug(DEBUG_AP, "stopped AP");
3880 }
3881 }
3882 }
e0d8bbf0 3883
0603d891 3884 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3885 if (ret < 0)
3886 goto out;
0b932ab9
AN		 3887
3888 /* Handle HT information change */
3889 if ((changed & BSS_CHANGED_HT) &&
3890 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3891 ret = wl1271_acx_set_ht_information(wl, wlvif,
0b932ab9
AN		 3892 bss_conf->ht_operation_mode);
3893 if (ret < 0) {
3894 wl1271_warning("Set ht information failed %d", ret);
3895 goto out;
3896 }
3897 }
3898
e78a287a
AN		 3899out:
3900 return;
3901}
8bf29b0e 3902
3230f35e
EP		 3903static int wlcore_set_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3904 struct ieee80211_bss_conf *bss_conf,
3905 u32 sta_rate_set)
3906{
3907 u32 rates;
3908 int ret;
3909
3910 wl1271_debug(DEBUG_MAC80211,
3911 "changed_bssid: %pM, aid: %d, bcn_int: %d, brates: 0x%x sta_rate_set: 0x%x",
3912 bss_conf->bssid, bss_conf->aid,
3913 bss_conf->beacon_int,
3914 bss_conf->basic_rates, sta_rate_set);
3915
3916 wlvif->beacon_int = bss_conf->beacon_int;
3917 rates = bss_conf->basic_rates;
3918 wlvif->basic_rate_set =
3919 wl1271_tx_enabled_rates_get(wl, rates,
3920 wlvif->band);
3921 wlvif->basic_rate =
3922 wl1271_tx_min_rate_get(wl,
3923 wlvif->basic_rate_set);
3924
3925 if (sta_rate_set)
3926 wlvif->rate_set =
3927 wl1271_tx_enabled_rates_get(wl,
3928 sta_rate_set,
3929 wlvif->band);
3930
3931 /* we only support sched_scan while not connected */
10199756 3932 if (wl->sched_vif == wlvif)
78e28062 3933 wl->ops->sched_scan_stop(wl, wlvif);
3230f35e
EP		 3934
3935 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
3936 if (ret < 0)
3937 return ret;
3938
3939 ret = wl12xx_cmd_build_null_data(wl, wlvif);
3940 if (ret < 0)
3941 return ret;
3942
3943 ret = wl1271_build_qos_null_data(wl, wl12xx_wlvif_to_vif(wlvif));
3944 if (ret < 0)
3945 return ret;
3946
3947 wlcore_set_ssid(wl, wlvif);
3948
3949 set_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
3950
3951 return 0;
3952}
3953
3954static int wlcore_clear_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
3955{
3956 int ret;
3957
3958 /* revert back to minimum rates for the current band */
3959 wl1271_set_band_rate(wl, wlvif);
3960 wlvif->basic_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3961
3962 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
3963 if (ret < 0)
3964 return ret;
3965
3966 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3967 test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags)) {
3968 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
3969 if (ret < 0)
3970 return ret;
3971 }
3972
3973 clear_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
3974 return 0;
3975}
e78a287a
AN		 3976/* STA/IBSS mode changes */
3977static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3978 struct ieee80211_vif *vif,
3979 struct ieee80211_bss_conf *bss_conf,
3980 u32 changed)
3981{
87fbcb0f 3982 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3230f35e 3983 bool do_join = false;
536129c8 3984 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3985 bool ibss_joined = false;
72c2d9e5 3986 u32 sta_rate_set = 0;
e78a287a 3987 int ret;
2d6e4e76 3988 struct ieee80211_sta *sta;
a100885d
AN		 3989 bool sta_exists = false;
3990 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3991
3992 if (is_ibss) {
3993 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3994 changed);
3995 if (ret < 0)
3996 goto out;
e0d8bbf0
JO		 3997 }
3998
227e81e1
EP		 3999 if (changed & BSS_CHANGED_IBSS) {
4000 if (bss_conf->ibss_joined) {
eee514e3 4001 set_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags);
227e81e1
EP		 4002 ibss_joined = true;
4003 } else {
3230f35e
EP		 4004 wlcore_unset_assoc(wl, wlvif);
4005 wl12xx_cmd_role_stop_sta(wl, wlvif);
227e81e1
EP		 4006 }
4007 }
4008
4009 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 4010 do_join = true;
4011
4012 /* Need to update the SSID (for filtering etc) */
227e81e1 4013 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 4014 do_join = true;
4015
227e81e1 4016 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 4017 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
4018 bss_conf->enable_beacon ? "enabled" : "disabled");
4019
5da11dcd
JO		 4020 do_join = true;
4021 }
4022
48af2eb0 4023 if (changed & BSS_CHANGED_CQM) {
00236aed
JO		 4024 bool enable = false;
4025 if (bss_conf->cqm_rssi_thold)
4026 enable = true;
0603d891 4027 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
00236aed
JO		 4028 bss_conf->cqm_rssi_thold,
4029 bss_conf->cqm_rssi_hyst);
4030 if (ret < 0)
4031 goto out;
04324d99 4032 wlvif->rssi_thold = bss_conf->cqm_rssi_thold;
00236aed
JO		 4033 }
4034
ec87011a
EP		 4035 if (changed & (BSS_CHANGED_BSSID | BSS_CHANGED_HT |
4036 BSS_CHANGED_ASSOC)) {
0f9c8250
AN		 4037 rcu_read_lock();
4038 sta = ieee80211_find_sta(vif, bss_conf->bssid);
ef08d028
LC		 4039 if (sta) {
4040 u8 *rx_mask = sta->ht_cap.mcs.rx_mask;
4041
4042 /* save the supp_rates of the ap */
4043 sta_rate_set = sta->supp_rates[wlvif->band];
4044 if (sta->ht_cap.ht_supported)
4045 sta_rate_set |=
4046 (rx_mask[0] << HW_HT_RATES_OFFSET) |
4047 (rx_mask[1] << HW_MIMO_RATES_OFFSET);
4048 sta_ht_cap = sta->ht_cap;
4049 sta_exists = true;
4050 }
4051
0f9c8250 4052 rcu_read_unlock();
72c2d9e5 4053 }
72c2d9e5 4054
3230f35e
EP		 4055 if (changed & BSS_CHANGED_BSSID) {
4056 if (!is_zero_ether_addr(bss_conf->bssid)) {
4057 ret = wlcore_set_bssid(wl, wlvif, bss_conf,
4058 sta_rate_set);
f5fc0f86 4059 if (ret < 0)
e78a287a 4060 goto out;
f5fc0f86 4061
3230f35e
EP		 4062 /* Need to update the BSSID (for filtering etc) */
4063 do_join = true;
d94cd297 4064 } else {
3230f35e 4065 ret = wlcore_clear_bssid(wl, wlvif);
6ccbb92e 4066 if (ret < 0)
e78a287a 4067 goto out;
f5fc0f86 4068 }
f5fc0f86
LC		 4069 }
4070
d192d268
EP		 4071 if (changed & BSS_CHANGED_IBSS) {
4072 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
4073 bss_conf->ibss_joined);
4074
4075 if (bss_conf->ibss_joined) {
4076 u32 rates = bss_conf->basic_rates;
87fbcb0f 4077 wlvif->basic_rate_set =
af7fbb28 4078 wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 4079 wlvif->band);
d2d66c56 4080 wlvif->basic_rate =
87fbcb0f
EP		 4081 wl1271_tx_min_rate_get(wl,
4082 wlvif->basic_rate_set);
d192d268 4083
06b660e1 4084 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 4085 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
4086 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 4087 if (ret < 0)
4088 goto out;
4089 }
4090 }
4091
0603d891 4092 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 4093 if (ret < 0)
4094 goto out;
f5fc0f86 4095
8bf29b0e 4096 if (do_join) {
3230f35e 4097 ret = wlcore_join(wl, wlvif);
8bf29b0e
JO		 4098 if (ret < 0) {
4099 wl1271_warning("cmd join failed %d", ret);
e78a287a 4100 goto out;
8bf29b0e 4101 }
3230f35e
EP		 4102 }
4103
4104 if (changed & BSS_CHANGED_ASSOC) {
4105 if (bss_conf->assoc) {
ec87011a
EP		 4106 ret = wlcore_set_assoc(wl, wlvif, bss_conf,
4107 sta_rate_set);
251c177f
EP		 4108 if (ret < 0)
4109 goto out;
3230f35e
EP		 4110
4111 if (test_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags))
4112 wl12xx_set_authorized(wl, wlvif);
4113 } else {
4114 wlcore_unset_assoc(wl, wlvif);
251c177f 4115 }
c1899554
JO		 4116 }
4117
0b932ab9 4118 /* Handle new association with HT. Do this after join. */
58321b29
EP		 4119 if (sta_exists &&
4120 (changed & BSS_CHANGED_HT)) {
4121 bool enabled =
4122 bss_conf->channel_type != NL80211_CHAN_NO_HT;
4123
4124 ret = wl1271_acx_set_ht_capabilities(wl,
4125 &sta_ht_cap,
4126 enabled,
4127 wlvif->sta.hlid);
4128 if (ret < 0) {
4129 wl1271_warning("Set ht cap failed %d", ret);
4130 goto out;
4131
0f9c8250 4132 }
58321b29
EP		 4133
4134 if (enabled) {
4135 ret = wl1271_acx_set_ht_information(wl, wlvif,
4136 bss_conf->ht_operation_mode);
0f9c8250 4137 if (ret < 0) {
58321b29 4138 wl1271_warning("Set ht information failed %d",
0f9c8250
AN		 4139 ret);
4140 goto out;
4141 }
4142 }
4143 }
4144
76a74c8a
EP		 4145 /* Handle arp filtering. Done after join. */
4146 if ((changed & BSS_CHANGED_ARP_FILTER) ||
4147 (!is_ibss && (changed & BSS_CHANGED_QOS))) {
4148 __be32 addr = bss_conf->arp_addr_list[0];
4149 wlvif->sta.qos = bss_conf->qos;
4150 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
4151
4152 if (bss_conf->arp_addr_cnt == 1 &&
4153 bss_conf->arp_filter_enabled) {
4154 wlvif->ip_addr = addr;
4155 /*
4156 * The template should have been configured only upon
4157 * association. however, it seems that the correct ip
4158 * isn't being set (when sending), so we have to
4159 * reconfigure the template upon every ip change.
4160 */
4161 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
4162 if (ret < 0) {
4163 wl1271_warning("build arp rsp failed: %d", ret);
4164 goto out;
4165 }
4166
4167 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
4168 (ACX_ARP_FILTER_ARP_FILTERING |
4169 ACX_ARP_FILTER_AUTO_ARP),
4170 addr);
4171 } else {
4172 wlvif->ip_addr = 0;
4173 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
4174 }
4175
4176 if (ret < 0)
4177 goto out;
4178 }
4179
e78a287a
AN		 4180out:
4181 return;
4182}
4183
4184static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
4185 struct ieee80211_vif *vif,
4186 struct ieee80211_bss_conf *bss_conf,
4187 u32 changed)
4188{
4189 struct wl1271 *wl = hw->priv;
536129c8
EP		 4190 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4191 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 4192 int ret;
4193
d3f5a1b5
EP		 4194 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info role %d changed 0x%x",
4195 wlvif->role_id, (int)changed);
e78a287a 4196
6b8bf5bc
AN		 4197 /*
4198 * make sure to cancel pending disconnections if our association
4199 * state changed
4200 */
4201 if (!is_ap && (changed & BSS_CHANGED_ASSOC))
c50a2825 4202 cancel_delayed_work_sync(&wlvif->connection_loss_work);
6b8bf5bc 4203
b515d83a
EP		 4204 if (is_ap && (changed & BSS_CHANGED_BEACON_ENABLED) &&
4205 !bss_conf->enable_beacon)
4206 wl1271_tx_flush(wl);
4207
e78a287a
AN		 4208 mutex_lock(&wl->mutex);
4209
4cc53383 4210 if (unlikely(wl->state != WLCORE_STATE_ON))
e78a287a
AN		 4211 goto out;
4212
10c8cd01
EP		 4213 if (unlikely(!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)))
4214 goto out;
4215
a620865e 4216 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 4217 if (ret < 0)
4218 goto out;
4219
4220 if (is_ap)
4221 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
4222 else
4223 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
4224
f5fc0f86
LC		 4225 wl1271_ps_elp_sleep(wl);
4226
4227out:
4228 mutex_unlock(&wl->mutex);
4229}
4230
b6970ee5
EP		 4231static int wlcore_op_add_chanctx(struct ieee80211_hw *hw,
4232 struct ieee80211_chanctx_conf *ctx)
4233{
4234 wl1271_debug(DEBUG_MAC80211, "mac80211 add chanctx %d (type %d)",
4235 ieee80211_frequency_to_channel(ctx->channel->center_freq),
4236 ctx->channel_type);
4237 return 0;
4238}
4239
4240static void wlcore_op_remove_chanctx(struct ieee80211_hw *hw,
4241 struct ieee80211_chanctx_conf *ctx)
4242{
4243 wl1271_debug(DEBUG_MAC80211, "mac80211 remove chanctx %d (type %d)",
4244 ieee80211_frequency_to_channel(ctx->channel->center_freq),
4245 ctx->channel_type);
4246}
4247
4248static void wlcore_op_change_chanctx(struct ieee80211_hw *hw,
4249 struct ieee80211_chanctx_conf *ctx,
4250 u32 changed)
4251{
4252 wl1271_debug(DEBUG_MAC80211,
4253 "mac80211 change chanctx %d (type %d) changed 0x%x",
4254 ieee80211_frequency_to_channel(ctx->channel->center_freq),
4255 ctx->channel_type, changed);
4256}
4257
4258static int wlcore_op_assign_vif_chanctx(struct ieee80211_hw *hw,
4259 struct ieee80211_vif *vif,
4260 struct ieee80211_chanctx_conf *ctx)
4261{
4262 struct wl1271 *wl = hw->priv;
4263 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4264 int channel = ieee80211_frequency_to_channel(
4265 ctx->channel->center_freq);
4266
4267 wl1271_debug(DEBUG_MAC80211,
4268 "mac80211 assign chanctx (role %d) %d (type %d)",
4269 wlvif->role_id, channel, ctx->channel_type);
4270
4271 mutex_lock(&wl->mutex);
4272
4273 wlvif->band = ctx->channel->band;
4274 wlvif->channel = channel;
4275 wlvif->channel_type = ctx->channel_type;
4276
4277 /* update default rates according to the band */
4278 wl1271_set_band_rate(wl, wlvif);
4279
4280 mutex_unlock(&wl->mutex);
4281
4282 return 0;
4283}
4284
4285static void wlcore_op_unassign_vif_chanctx(struct ieee80211_hw *hw,
4286 struct ieee80211_vif *vif,
4287 struct ieee80211_chanctx_conf *ctx)
4288{
4289 struct wl1271 *wl = hw->priv;
4290 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4291
4292 wl1271_debug(DEBUG_MAC80211,
4293 "mac80211 unassign chanctx (role %d) %d (type %d)",
4294 wlvif->role_id,
4295 ieee80211_frequency_to_channel(ctx->channel->center_freq),
4296 ctx->channel_type);
4297
4298 wl1271_tx_flush(wl);
4299}
4300
8a3a3c85
EP		 4301static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
4302 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 4303 const struct ieee80211_tx_queue_params *params)
4304{
4305 struct wl1271 *wl = hw->priv;
0603d891 4306 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4695dc91 4307 u8 ps_scheme;
488fc540 4308 int ret = 0;
c6999d83
KV		 4309
4310 mutex_lock(&wl->mutex);
4311
4312 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
4313
4695dc91
KV		 4314 if (params->uapsd)
4315 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
4316 else
4317 ps_scheme = CONF_PS_SCHEME_LEGACY;
4318
5b37ddfe 4319 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
c1b193eb 4320 goto out;
488fc540 4321
c1b193eb
EP		 4322 ret = wl1271_ps_elp_wakeup(wl);
4323 if (ret < 0)
4324 goto out;
488fc540 4325
c1b193eb
EP		 4326 /*
4327 * the txop is confed in units of 32us by the mac80211,
4328 * we need us
4329 */
0603d891 4330 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4331 params->cw_min, params->cw_max,
4332 params->aifs, params->txop << 5);
4333 if (ret < 0)
4334 goto out_sleep;
4335
0603d891 4336 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4337 CONF_CHANNEL_TYPE_EDCF,
4338 wl1271_tx_get_queue(queue),
4339 ps_scheme, CONF_ACK_POLICY_LEGACY,
4340 0, 0);
c82c1dde
KV		 4341
4342out_sleep:
c1b193eb 4343 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 4344
4345out:
4346 mutex_unlock(&wl->mutex);
4347
4348 return ret;
4349}
4350
37a41b4a
EP		 4351static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
4352 struct ieee80211_vif *vif)
bbbb538e
JO		 4353{
4354
4355 struct wl1271 *wl = hw->priv;
9c531149 4356 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbbb538e
JO		 4357 u64 mactime = ULLONG_MAX;
4358 int ret;
4359
4360 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
4361
4362 mutex_lock(&wl->mutex);
4363
4cc53383 4364 if (unlikely(wl->state != WLCORE_STATE_ON))
f8d9802f
JO		 4365 goto out;
4366
a620865e 4367 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 4368 if (ret < 0)
4369 goto out;
4370
9c531149 4371 ret = wl12xx_acx_tsf_info(wl, wlvif, &mactime);
bbbb538e
JO		 4372 if (ret < 0)
4373 goto out_sleep;
4374
4375out_sleep:
4376 wl1271_ps_elp_sleep(wl);
4377
4378out:
4379 mutex_unlock(&wl->mutex);
4380 return mactime;
4381}
f5fc0f86 4382
ece550d0
JL		 4383static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
4384 struct survey_info *survey)
4385{
ece550d0 4386 struct ieee80211_conf *conf = &hw->conf;
b739a42c 4387
ece550d0
JL		 4388 if (idx != 0)
4389 return -ENOENT;
b739a42c 4390
ece550d0 4391 survey->channel = conf->channel;
add779a0 4392 survey->filled = 0;
ece550d0
JL		 4393 return 0;
4394}
4395
409622ec 4396static int wl1271_allocate_sta(struct wl1271 *wl,
c7ffb902
EP		 4397 struct wl12xx_vif *wlvif,
4398 struct ieee80211_sta *sta)
f84f7d78
AN		 4399{
4400 struct wl1271_station *wl_sta;
c7ffb902 4401 int ret;
f84f7d78 4402
c7ffb902
EP		 4403
4404 if (wl->active_sta_count >= AP_MAX_STATIONS) {
f84f7d78
AN		 4405 wl1271_warning("could not allocate HLID - too much stations");
4406 return -EBUSY;
4407 }
4408
4409 wl_sta = (struct wl1271_station *)sta->drv_priv;
c7ffb902
EP		 4410 ret = wl12xx_allocate_link(wl, wlvif, &wl_sta->hlid);
4411 if (ret < 0) {
4412 wl1271_warning("could not allocate HLID - too many links");
4413 return -EBUSY;
4414 }
4415
4416 set_bit(wl_sta->hlid, wlvif->ap.sta_hlid_map);
b622d992 4417 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 4418 wl->active_sta_count++;
f84f7d78
AN		 4419 return 0;
4420}
4421
c7ffb902 4422void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
f84f7d78 4423{
c7ffb902 4424 if (!test_bit(hlid, wlvif->ap.sta_hlid_map))
f1acea9a
AN		 4425 return;
4426
c7ffb902 4427 clear_bit(hlid, wlvif->ap.sta_hlid_map);
b622d992 4428 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 4429 wl->links[hlid].ba_bitmap = 0;
b622d992
AN		 4430 __clear_bit(hlid, &wl->ap_ps_map);
4431 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
c7ffb902 4432 wl12xx_free_link(wl, wlvif, &hlid);
da03209e 4433 wl->active_sta_count--;
55df5afb
AN		 4434
4435 /*
4436 * rearm the tx watchdog when the last STA is freed - give the FW a
4437 * chance to return STA-buffered packets before complaining.
4438 */
4439 if (wl->active_sta_count == 0)
4440 wl12xx_rearm_tx_watchdog_locked(wl);
f84f7d78
AN		 4441}
4442
2d6cf2b5
EP		 4443static int wl12xx_sta_add(struct wl1271 *wl,
4444 struct wl12xx_vif *wlvif,
4445 struct ieee80211_sta *sta)
f84f7d78 4446{
c7ffb902 4447 struct wl1271_station *wl_sta;
f84f7d78
AN		 4448 int ret = 0;
4449 u8 hlid;
4450
f84f7d78
AN		 4451 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
4452
c7ffb902 4453 ret = wl1271_allocate_sta(wl, wlvif, sta);
f84f7d78 4454 if (ret < 0)
2d6cf2b5 4455 return ret;
f84f7d78 4456
c7ffb902
EP		 4457 wl_sta = (struct wl1271_station *)sta->drv_priv;
4458 hlid = wl_sta->hlid;
4459
1b92f15e 4460 ret = wl12xx_cmd_add_peer(wl, wlvif, sta, hlid);
f84f7d78 4461 if (ret < 0)
2d6cf2b5 4462 wl1271_free_sta(wl, wlvif, hlid);
f84f7d78 4463
2d6cf2b5
EP		 4464 return ret;
4465}
b67476ef 4466
2d6cf2b5
EP		 4467static int wl12xx_sta_remove(struct wl1271 *wl,
4468 struct wl12xx_vif *wlvif,
4469 struct ieee80211_sta *sta)
4470{
4471 struct wl1271_station *wl_sta;
4472 int ret = 0, id;
0b932ab9 4473
2d6cf2b5
EP		 4474 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4475
4476 wl_sta = (struct wl1271_station *)sta->drv_priv;
4477 id = wl_sta->hlid;
4478 if (WARN_ON(!test_bit(id, wlvif->ap.sta_hlid_map)))
4479 return -EINVAL;
f84f7d78 4480
2d6cf2b5 4481 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
409622ec 4482 if (ret < 0)
2d6cf2b5 4483 return ret;
409622ec 4484
2d6cf2b5 4485 wl1271_free_sta(wl, wlvif, wl_sta->hlid);
f84f7d78
AN		 4486 return ret;
4487}
4488
2d6cf2b5
EP		 4489static int wl12xx_update_sta_state(struct wl1271 *wl,
4490 struct wl12xx_vif *wlvif,
4491 struct ieee80211_sta *sta,
4492 enum ieee80211_sta_state old_state,
4493 enum ieee80211_sta_state new_state)
f84f7d78 4494{
f84f7d78 4495 struct wl1271_station *wl_sta;
2d6cf2b5
EP		 4496 u8 hlid;
4497 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
4498 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
4499 int ret;
f84f7d78 4500
2d6cf2b5
EP		 4501 wl_sta = (struct wl1271_station *)sta->drv_priv;
4502 hlid = wl_sta->hlid;
f84f7d78 4503
2d6cf2b5
EP		 4504 /* Add station (AP mode) */
4505 if (is_ap &&
4506 old_state == IEEE80211_STA_NOTEXIST &&
29936266
EP		 4507 new_state == IEEE80211_STA_NONE) {
4508 ret = wl12xx_sta_add(wl, wlvif, sta);
4509 if (ret)
4510 return ret;
4511 }
2d6cf2b5
EP		 4512
4513 /* Remove station (AP mode) */
4514 if (is_ap &&
4515 old_state == IEEE80211_STA_NONE &&
4516 new_state == IEEE80211_STA_NOTEXIST) {
4517 /* must not fail */
4518 wl12xx_sta_remove(wl, wlvif, sta);
2d6cf2b5 4519 }
f84f7d78 4520
2d6cf2b5
EP		 4521 /* Authorize station (AP mode) */
4522 if (is_ap &&
4523 new_state == IEEE80211_STA_AUTHORIZED) {
d50529c0 4524 ret = wl12xx_cmd_set_peer_state(wl, wlvif, hlid);
2d6cf2b5
EP		 4525 if (ret < 0)
4526 return ret;
f84f7d78 4527
2d6cf2b5
EP		 4528 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true,
4529 hlid);
29936266
EP		 4530 if (ret)
4531 return ret;
2d6cf2b5 4532 }
f84f7d78 4533
9fd6f21b
EP		 4534 /* Authorize station */
4535 if (is_sta &&
4536 new_state == IEEE80211_STA_AUTHORIZED) {
4537 set_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
29936266
EP		 4538 ret = wl12xx_set_authorized(wl, wlvif);
4539 if (ret)
4540 return ret;
9fd6f21b
EP		 4541 }
4542
4543 if (is_sta &&
4544 old_state == IEEE80211_STA_AUTHORIZED &&
4545 new_state == IEEE80211_STA_ASSOC) {
4546 clear_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
3230f35e 4547 clear_bit(WLVIF_FLAG_STA_STATE_SENT, &wlvif->flags);
9fd6f21b
EP		 4548 }
4549
29936266
EP		 4550 /* clear ROCs on failure or authorization */
4551 if (is_sta &&
4552 (new_state == IEEE80211_STA_AUTHORIZED ||
4553 new_state == IEEE80211_STA_NOTEXIST)) {
4554 if (test_bit(wlvif->role_id, wl->roc_map))
4555 wl12xx_croc(wl, wlvif->role_id);
4556 }
4557
4558 if (is_sta &&
4559 old_state == IEEE80211_STA_NOTEXIST &&
4560 new_state == IEEE80211_STA_NONE) {
4561 if (find_first_bit(wl->roc_map,
4562 WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES) {
4563 WARN_ON(wlvif->role_id == WL12XX_INVALID_ROLE_ID);
4564 wl12xx_roc(wl, wlvif, wlvif->role_id,
4565 wlvif->band, wlvif->channel);
4566 }
4567 }
2d6cf2b5
EP		 4568 return 0;
4569}
4570
4571static int wl12xx_op_sta_state(struct ieee80211_hw *hw,
4572 struct ieee80211_vif *vif,
4573 struct ieee80211_sta *sta,
4574 enum ieee80211_sta_state old_state,
4575 enum ieee80211_sta_state new_state)
4576{
4577 struct wl1271 *wl = hw->priv;
4578 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4579 int ret;
4580
4581 wl1271_debug(DEBUG_MAC80211, "mac80211 sta %d state=%d->%d",
4582 sta->aid, old_state, new_state);
4583
4584 mutex_lock(&wl->mutex);
4585
4cc53383 4586 if (unlikely(wl->state != WLCORE_STATE_ON)) {
2d6cf2b5 4587 ret = -EBUSY;
f84f7d78 4588 goto out;
2d6cf2b5 4589 }
f84f7d78 4590
a620865e 4591 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4592 if (ret < 0)
4593 goto out;
4594
2d6cf2b5 4595 ret = wl12xx_update_sta_state(wl, wlvif, sta, old_state, new_state);
f84f7d78 4596
f84f7d78 4597 wl1271_ps_elp_sleep(wl);
f84f7d78
AN		 4598out:
4599 mutex_unlock(&wl->mutex);
2d6cf2b5
EP		 4600 if (new_state < old_state)
4601 return 0;
f84f7d78
AN		 4602 return ret;
4603}
4604
4623ec7d
LC		 4605static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4606 struct ieee80211_vif *vif,
4607 enum ieee80211_ampdu_mlme_action action,
4608 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4609 u8 buf_size)
bbba3e68
LS		 4610{
4611 struct wl1271 *wl = hw->priv;
536129c8 4612 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4613 int ret;
0f9c8250
AN		 4614 u8 hlid, *ba_bitmap;
4615
4616 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4617 tid);
4618
4619 /* sanity check - the fields in FW are only 8bits wide */
4620 if (WARN_ON(tid > 0xFF))
4621 return -ENOTSUPP;
bbba3e68
LS		 4622
4623 mutex_lock(&wl->mutex);
4624
4cc53383 4625 if (unlikely(wl->state != WLCORE_STATE_ON)) {
bbba3e68
LS		 4626 ret = -EAGAIN;
4627 goto out;
4628 }
4629
536129c8 4630 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
154da67c 4631 hlid = wlvif->sta.hlid;
d0802abd 4632 ba_bitmap = &wlvif->sta.ba_rx_bitmap;
536129c8 4633 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4634 struct wl1271_station *wl_sta;
4635
4636 wl_sta = (struct wl1271_station *)sta->drv_priv;
4637 hlid = wl_sta->hlid;
4638 ba_bitmap = &wl->links[hlid].ba_bitmap;
4639 } else {
4640 ret = -EINVAL;
4641 goto out;
4642 }
4643
a620865e 4644 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4645 if (ret < 0)
4646 goto out;
4647
70559a06
SL		 4648 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4649 tid, action);
4650
bbba3e68
LS		 4651 switch (action) {
4652 case IEEE80211_AMPDU_RX_START:
d0802abd 4653 if (!wlvif->ba_support || !wlvif->ba_allowed) {
bbba3e68 4654 ret = -ENOTSUPP;
0f9c8250
AN		 4655 break;
4656 }
4657
4658 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4659 ret = -EBUSY;
4660 wl1271_error("exceeded max RX BA sessions");
4661 break;
4662 }
4663
4664 if (*ba_bitmap & BIT(tid)) {
4665 ret = -EINVAL;
4666 wl1271_error("cannot enable RX BA session on active "
4667 "tid: %d", tid);
4668 break;
4669 }
4670
4671 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4672 hlid);
4673 if (!ret) {
4674 *ba_bitmap |= BIT(tid);
4675 wl->ba_rx_session_count++;
bbba3e68
LS		 4676 }
4677 break;
4678
4679 case IEEE80211_AMPDU_RX_STOP:
0f9c8250 4680 if (!(*ba_bitmap & BIT(tid))) {
c954910b
AN		 4681 /*
4682 * this happens on reconfig - so only output a debug
4683 * message for now, and don't fail the function.
4684 */
4685 wl1271_debug(DEBUG_MAC80211,
4686 "no active RX BA session on tid: %d",
0f9c8250 4687 tid);
c954910b 4688 ret = 0;
0f9c8250
AN		 4689 break;
4690 }
4691
4692 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4693 hlid);
4694 if (!ret) {
4695 *ba_bitmap &= ~BIT(tid);
4696 wl->ba_rx_session_count--;
4697 }
bbba3e68
LS		 4698 break;
4699
4700 /*
4701 * The BA initiator session management in FW independently.
4702 * Falling break here on purpose for all TX APDU commands.
4703 */
4704 case IEEE80211_AMPDU_TX_START:
4705 case IEEE80211_AMPDU_TX_STOP:
4706 case IEEE80211_AMPDU_TX_OPERATIONAL:
4707 ret = -EINVAL;
4708 break;
4709
4710 default:
4711 wl1271_error("Incorrect ampdu action id=%x\n", action);
4712 ret = -EINVAL;
4713 }
4714
4715 wl1271_ps_elp_sleep(wl);
4716
4717out:
4718 mutex_unlock(&wl->mutex);
4719
4720 return ret;
4721}
4722
af7fbb28
EP		 4723static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4724 struct ieee80211_vif *vif,
4725 const struct cfg80211_bitrate_mask *mask)
4726{
83587505 4727 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
af7fbb28 4728 struct wl1271 *wl = hw->priv;
d6fa37c9 4729 int i, ret = 0;
af7fbb28
EP		 4730
4731 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4732 mask->control[NL80211_BAND_2GHZ].legacy,
4733 mask->control[NL80211_BAND_5GHZ].legacy);
4734
4735 mutex_lock(&wl->mutex);
4736
091185d6 4737 for (i = 0; i < WLCORE_NUM_BANDS; i++)
83587505 4738 wlvif->bitrate_masks[i] =
af7fbb28
EP		 4739 wl1271_tx_enabled_rates_get(wl,
4740 mask->control[i].legacy,
4741 i);
d6fa37c9 4742
4cc53383 4743 if (unlikely(wl->state != WLCORE_STATE_ON))
d6fa37c9
EP		 4744 goto out;
4745
4746 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
4747 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) {
4748
4749 ret = wl1271_ps_elp_wakeup(wl);
4750 if (ret < 0)
4751 goto out;
4752
4753 wl1271_set_band_rate(wl, wlvif);
4754 wlvif->basic_rate =
4755 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
4756 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4757
4758 wl1271_ps_elp_sleep(wl);
4759 }
4760out:
af7fbb28
EP		 4761 mutex_unlock(&wl->mutex);
4762
d6fa37c9 4763 return ret;
af7fbb28
EP		 4764}
4765
6d158ff3
SL		 4766static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4767 struct ieee80211_channel_switch *ch_switch)
4768{
4769 struct wl1271 *wl = hw->priv;
52630c5d 4770 struct wl12xx_vif *wlvif;
6d158ff3
SL		 4771 int ret;
4772
4773 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4774
b9239b66
AN		 4775 wl1271_tx_flush(wl);
4776
6d158ff3
SL		 4777 mutex_lock(&wl->mutex);
4778
4cc53383 4779 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
6e8cd331
EP		 4780 wl12xx_for_each_wlvif_sta(wl, wlvif) {
4781 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
4782 ieee80211_chswitch_done(vif, false);
4783 }
4784 goto out;
4cc53383
IY		 4785 } else if (unlikely(wl->state != WLCORE_STATE_ON)) {
4786 goto out;
6d158ff3
SL		 4787 }
4788
4789 ret = wl1271_ps_elp_wakeup(wl);
4790 if (ret < 0)
4791 goto out;
4792
52630c5d
EP		 4793 /* TODO: change mac80211 to pass vif as param */
4794 wl12xx_for_each_wlvif_sta(wl, wlvif) {
c50a2825
EP		 4795 unsigned long delay_usec;
4796
fcab1890 4797 ret = wl->ops->channel_switch(wl, wlvif, ch_switch);
c50a2825
EP		 4798 if (ret)
4799 goto out_sleep;
4800
4801 set_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags);
4802
4803 /* indicate failure 5 seconds after channel switch time */
4804 delay_usec = ieee80211_tu_to_usec(wlvif->beacon_int) *
4805 ch_switch->count;
4806 ieee80211_queue_delayed_work(hw, &wlvif->channel_switch_work,
4807 usecs_to_jiffies(delay_usec) +
4808 msecs_to_jiffies(5000));
52630c5d 4809 }
6d158ff3 4810
c50a2825 4811out_sleep:
6d158ff3
SL		 4812 wl1271_ps_elp_sleep(wl);
4813
4814out:
4815 mutex_unlock(&wl->mutex);
4816}
4817
d8ae5a25
EP		 4818static void wlcore_op_flush(struct ieee80211_hw *hw, bool drop)
4819{
4820 struct wl1271 *wl = hw->priv;
4821
4822 wl1271_tx_flush(wl);
4823}
4824
dabf37db
EP		 4825static int wlcore_op_remain_on_channel(struct ieee80211_hw *hw,
4826 struct ieee80211_vif *vif,
4827 struct ieee80211_channel *chan,
4828 enum nl80211_channel_type channel_type,
4829 int duration)
4830{
4831 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4832 struct wl1271 *wl = hw->priv;
4833 int channel, ret = 0;
4834
4835 channel = ieee80211_frequency_to_channel(chan->center_freq);
4836
4837 wl1271_debug(DEBUG_MAC80211, "mac80211 roc %d (%d)",
4838 channel, wlvif->role_id);
4839
4840 mutex_lock(&wl->mutex);
4841
4842 if (unlikely(wl->state != WLCORE_STATE_ON))
4843 goto out;
4844
4845 /* return EBUSY if we can't ROC right now */
4846 if (WARN_ON(wl->roc_vif ||
4847 find_first_bit(wl->roc_map,
4848 WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES)) {
4849 ret = -EBUSY;
4850 goto out;
4851 }
4852
4853 ret = wl1271_ps_elp_wakeup(wl);
4854 if (ret < 0)
4855 goto out;
4856
4857 ret = wl12xx_start_dev(wl, wlvif, chan->band, channel);
4858 if (ret < 0)
4859 goto out_sleep;
4860
4861 wl->roc_vif = vif;
4862 ieee80211_queue_delayed_work(hw, &wl->roc_complete_work,
4863 msecs_to_jiffies(duration));
4864out_sleep:
4865 wl1271_ps_elp_sleep(wl);
4866out:
4867 mutex_unlock(&wl->mutex);
4868 return ret;
4869}
4870
4871static int __wlcore_roc_completed(struct wl1271 *wl)
4872{
4873 struct wl12xx_vif *wlvif;
4874 int ret;
4875
4876 /* already completed */
4877 if (unlikely(!wl->roc_vif))
4878 return 0;
4879
4880 wlvif = wl12xx_vif_to_data(wl->roc_vif);
4881
4882 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
4883 return -EBUSY;
4884
4885 ret = wl12xx_stop_dev(wl, wlvif);
4886 if (ret < 0)
4887 return ret;
4888
4889 wl->roc_vif = NULL;
4890
4891 return 0;
4892}
4893
4894static int wlcore_roc_completed(struct wl1271 *wl)
4895{
4896 int ret;
4897
4898 wl1271_debug(DEBUG_MAC80211, "roc complete");
4899
4900 mutex_lock(&wl->mutex);
4901
4902 if (unlikely(wl->state != WLCORE_STATE_ON)) {
4903 ret = -EBUSY;
4904 goto out;
4905 }
4906
4907 ret = wl1271_ps_elp_wakeup(wl);
4908 if (ret < 0)
4909 goto out;
4910
4911 ret = __wlcore_roc_completed(wl);
4912
4913 wl1271_ps_elp_sleep(wl);
4914out:
4915 mutex_unlock(&wl->mutex);
4916
4917 return ret;
4918}
4919
4920static void wlcore_roc_complete_work(struct work_struct *work)
4921{
4922 struct delayed_work *dwork;
4923 struct wl1271 *wl;
4924 int ret;
4925
4926 dwork = container_of(work, struct delayed_work, work);
4927 wl = container_of(dwork, struct wl1271, roc_complete_work);
4928
4929 ret = wlcore_roc_completed(wl);
4930 if (!ret)
4931 ieee80211_remain_on_channel_expired(wl->hw);
4932}
4933
4934static int wlcore_op_cancel_remain_on_channel(struct ieee80211_hw *hw)
4935{
4936 struct wl1271 *wl = hw->priv;
4937
4938 wl1271_debug(DEBUG_MAC80211, "mac80211 croc");
4939
4940 /* TODO: per-vif */
4941 wl1271_tx_flush(wl);
4942
4943 /*
4944 * we can't just flush_work here, because it might deadlock
4945 * (as we might get called from the same workqueue)
4946 */
4947 cancel_delayed_work_sync(&wl->roc_complete_work);
4948 wlcore_roc_completed(wl);
4949
4950 return 0;
4951}
4952
5f9b6777
AN		 4953static void wlcore_op_sta_rc_update(struct ieee80211_hw *hw,
4954 struct ieee80211_vif *vif,
4955 struct ieee80211_sta *sta,
4956 u32 changed)
4957{
4958 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4959 struct wl1271 *wl = hw->priv;
4960
4961 wlcore_hw_sta_rc_update(wl, wlvif, sta, changed);
4962}
4963
33437893
AN		 4964static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4965{
4966 struct wl1271 *wl = hw->priv;
4967 bool ret = false;
4968
4969 mutex_lock(&wl->mutex);
4970
4cc53383 4971 if (unlikely(wl->state != WLCORE_STATE_ON))
33437893
AN		 4972 goto out;
4973
4974 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4975 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4976out:
4977 mutex_unlock(&wl->mutex);
4978
4979 return ret;
4980}
4981
f5fc0f86
LC		 4982/* can't be const, mac80211 writes to this */
4983static struct ieee80211_rate wl1271_rates[] = {
4984 { .bitrate = 10,
2b60100b
JO		 4985 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4986 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4987 { .bitrate = 20,
2b60100b
JO		 4988 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4989 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4990 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4991 { .bitrate = 55,
2b60100b
JO		 4992 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4993 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4994 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4995 { .bitrate = 110,
2b60100b
JO		 4996 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4997 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4998 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4999 { .bitrate = 60,
2b60100b
JO		 5000 .hw_value = CONF_HW_BIT_RATE_6MBPS,
5001 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 5002 { .bitrate = 90,
2b60100b
JO		 5003 .hw_value = CONF_HW_BIT_RATE_9MBPS,
5004 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 5005 { .bitrate = 120,
2b60100b
JO		 5006 .hw_value = CONF_HW_BIT_RATE_12MBPS,
5007 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 5008 { .bitrate = 180,
2b60100b
JO		 5009 .hw_value = CONF_HW_BIT_RATE_18MBPS,
5010 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 5011 { .bitrate = 240,
2b60100b
JO		 5012 .hw_value = CONF_HW_BIT_RATE_24MBPS,
5013 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 5014 { .bitrate = 360,
2b60100b
JO		 5015 .hw_value = CONF_HW_BIT_RATE_36MBPS,
5016 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 5017 { .bitrate = 480,
2b60100b
JO		 5018 .hw_value = CONF_HW_BIT_RATE_48MBPS,
5019 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 5020 { .bitrate = 540,
2b60100b
JO		 5021 .hw_value = CONF_HW_BIT_RATE_54MBPS,
5022 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 5023};
5024
fa97f46b 5025/* can't be const, mac80211 writes to this */
f5fc0f86 5026static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 5027 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 5028 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 5029 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
5030 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
5031 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 5032 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 5033 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
5034 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
5035 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 5036 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 5037 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
5038 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
5039 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 5040 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 5041};
5042
5043/* can't be const, mac80211 writes to this */
5044static struct ieee80211_supported_band wl1271_band_2ghz = {
5045 .channels = wl1271_channels,
5046 .n_channels = ARRAY_SIZE(wl1271_channels),
5047 .bitrates = wl1271_rates,
5048 .n_bitrates = ARRAY_SIZE(wl1271_rates),
5049};
5050
1ebec3d7
TP		 5051/* 5 GHz data rates for WL1273 */
5052static struct ieee80211_rate wl1271_rates_5ghz[] = {
5053 { .bitrate = 60,
5054 .hw_value = CONF_HW_BIT_RATE_6MBPS,
5055 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
5056 { .bitrate = 90,
5057 .hw_value = CONF_HW_BIT_RATE_9MBPS,
5058 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
5059 { .bitrate = 120,
5060 .hw_value = CONF_HW_BIT_RATE_12MBPS,
5061 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
5062 { .bitrate = 180,
5063 .hw_value = CONF_HW_BIT_RATE_18MBPS,
5064 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
5065 { .bitrate = 240,
5066 .hw_value = CONF_HW_BIT_RATE_24MBPS,
5067 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
5068 { .bitrate = 360,
5069 .hw_value = CONF_HW_BIT_RATE_36MBPS,
5070 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
5071 { .bitrate = 480,
5072 .hw_value = CONF_HW_BIT_RATE_48MBPS,
5073 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
5074 { .bitrate = 540,
5075 .hw_value = CONF_HW_BIT_RATE_54MBPS,
5076 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
5077};
5078
fa97f46b 5079/* 5 GHz band channels for WL1273 */
1ebec3d7 5080static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 5081 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
5082 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
5083 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
5084 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
5085 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
5086 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
5087 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
5088 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
5089 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
5090 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
5091 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
5092 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
5093 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
5094 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
5095 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
5096 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
5097 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
5098 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
5099 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
5100 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
5101 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
5102 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
5103 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
5104 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
5105 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
5106 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
5107 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
5108 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
5109 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
5110 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
5111 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
5112 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
5113 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
5114 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 5115};
5116
1ebec3d7
TP		 5117static struct ieee80211_supported_band wl1271_band_5ghz = {
5118 .channels = wl1271_channels_5ghz,
5119 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
5120 .bitrates = wl1271_rates_5ghz,
5121 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
f876bb9a
JO		 5122};
5123
f5fc0f86
LC		 5124static const struct ieee80211_ops wl1271_ops = {
5125 .start = wl1271_op_start,
c24ec83b 5126 .stop = wlcore_op_stop,
f5fc0f86
LC		 5127 .add_interface = wl1271_op_add_interface,
5128 .remove_interface = wl1271_op_remove_interface,
c0fad1b7 5129 .change_interface = wl12xx_op_change_interface,
f634a4e7 5130#ifdef CONFIG_PM
402e4861
EP		 5131 .suspend = wl1271_op_suspend,
5132 .resume = wl1271_op_resume,
f634a4e7 5133#endif
f5fc0f86 5134 .config = wl1271_op_config,
c87dec9f 5135 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 5136 .configure_filter = wl1271_op_configure_filter,
5137 .tx = wl1271_op_tx,
a1c597f2 5138 .set_key = wlcore_op_set_key,
f5fc0f86 5139 .hw_scan = wl1271_op_hw_scan,
73ecce31 5140 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 5141 .sched_scan_start = wl1271_op_sched_scan_start,
5142 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 5143 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 5144 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 5145 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 5146 .conf_tx = wl1271_op_conf_tx,
bbbb538e 5147 .get_tsf = wl1271_op_get_tsf,
ece550d0 5148 .get_survey = wl1271_op_get_survey,
2d6cf2b5 5149 .sta_state = wl12xx_op_sta_state,
bbba3e68 5150 .ampdu_action = wl1271_op_ampdu_action,
33437893 5151 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 5152 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 5153 .channel_switch = wl12xx_op_channel_switch,
d8ae5a25 5154 .flush = wlcore_op_flush,
dabf37db
EP		 5155 .remain_on_channel = wlcore_op_remain_on_channel,
5156 .cancel_remain_on_channel = wlcore_op_cancel_remain_on_channel,
b6970ee5
EP		 5157 .add_chanctx = wlcore_op_add_chanctx,
5158 .remove_chanctx = wlcore_op_remove_chanctx,
5159 .change_chanctx = wlcore_op_change_chanctx,
5160 .assign_vif_chanctx = wlcore_op_assign_vif_chanctx,
5161 .unassign_vif_chanctx = wlcore_op_unassign_vif_chanctx,
5f9b6777 5162 .sta_rc_update = wlcore_op_sta_rc_update,
c8c90873 5163 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 5164};
5165
f876bb9a 5166
43a8bc5a 5167u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
f876bb9a
JO		 5168{
5169 u8 idx;
5170
43a8bc5a 5171 BUG_ON(band >= 2);
f876bb9a 5172
43a8bc5a 5173 if (unlikely(rate >= wl->hw_tx_rate_tbl_size)) {
f876bb9a
JO		 5174 wl1271_error("Illegal RX rate from HW: %d", rate);
5175 return 0;
5176 }
5177
43a8bc5a 5178 idx = wl->band_rate_to_idx[band][rate];
f876bb9a
JO		 5179 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
5180 wl1271_error("Unsupported RX rate from HW: %d", rate);
5181 return 0;
5182 }
5183
5184 return idx;
5185}
5186
7fc3a864
JO		 5187static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
5188 struct device_attribute *attr,
5189 char *buf)
5190{
5191 struct wl1271 *wl = dev_get_drvdata(dev);
5192 ssize_t len;
5193
2f63b011 5194 len = PAGE_SIZE;
7fc3a864
JO		 5195
5196 mutex_lock(&wl->mutex);
5197 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
5198 wl->sg_enabled);
5199 mutex_unlock(&wl->mutex);
5200
5201 return len;
5202
5203}
5204
5205static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
5206 struct device_attribute *attr,
5207 const char *buf, size_t count)
5208{
5209 struct wl1271 *wl = dev_get_drvdata(dev);
5210 unsigned long res;
5211 int ret;
5212
6277ed65 5213 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 5214 if (ret < 0) {
5215 wl1271_warning("incorrect value written to bt_coex_mode");
5216 return count;
5217 }
5218
5219 mutex_lock(&wl->mutex);
5220
5221 res = !!res;
5222
5223 if (res == wl->sg_enabled)
5224 goto out;
5225
5226 wl->sg_enabled = res;
5227
4cc53383 5228 if (unlikely(wl->state != WLCORE_STATE_ON))
7fc3a864
JO		 5229 goto out;
5230
a620865e 5231 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 5232 if (ret < 0)
5233 goto out;
5234
5235 wl1271_acx_sg_enable(wl, wl->sg_enabled);
5236 wl1271_ps_elp_sleep(wl);
5237
5238 out:
5239 mutex_unlock(&wl->mutex);
5240 return count;
5241}
5242
5243static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
5244 wl1271_sysfs_show_bt_coex_state,
5245 wl1271_sysfs_store_bt_coex_state);
5246
d717fd61
JO		 5247static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
5248 struct device_attribute *attr,
5249 char *buf)
5250{
5251 struct wl1271 *wl = dev_get_drvdata(dev);
5252 ssize_t len;
5253
2f63b011 5254 len = PAGE_SIZE;
d717fd61
JO		 5255
5256 mutex_lock(&wl->mutex);
5257 if (wl->hw_pg_ver >= 0)
5258 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
5259 else
5260 len = snprintf(buf, len, "n/a\n");
5261 mutex_unlock(&wl->mutex);
5262
5263 return len;
5264}
5265
6f07b72a 5266static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 5267 wl1271_sysfs_show_hw_pg_ver, NULL);
5268
95dac04f
IY		 5269static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
5270 struct bin_attribute *bin_attr,
5271 char *buffer, loff_t pos, size_t count)
5272{
5273 struct device *dev = container_of(kobj, struct device, kobj);
5274 struct wl1271 *wl = dev_get_drvdata(dev);
5275 ssize_t len;
5276 int ret;
5277
5278 ret = mutex_lock_interruptible(&wl->mutex);
5279 if (ret < 0)
5280 return -ERESTARTSYS;
5281
5282 /* Let only one thread read the log at a time, blocking others */
5283 while (wl->fwlog_size == 0) {
5284 DEFINE_WAIT(wait);
5285
5286 prepare_to_wait_exclusive(&wl->fwlog_waitq,
5287 &wait,
5288 TASK_INTERRUPTIBLE);
5289
5290 if (wl->fwlog_size != 0) {
5291 finish_wait(&wl->fwlog_waitq, &wait);
5292 break;
5293 }
5294
5295 mutex_unlock(&wl->mutex);
5296
5297 schedule();
5298 finish_wait(&wl->fwlog_waitq, &wait);
5299
5300 if (signal_pending(current))
5301 return -ERESTARTSYS;
5302
5303 ret = mutex_lock_interruptible(&wl->mutex);
5304 if (ret < 0)
5305 return -ERESTARTSYS;
5306 }
5307
5308 /* Check if the fwlog is still valid */
5309 if (wl->fwlog_size < 0) {
5310 mutex_unlock(&wl->mutex);
5311 return 0;
5312 }
5313
5314 /* Seeking is not supported - old logs are not kept. Disregard pos. */
5315 len = min(count, (size_t)wl->fwlog_size);
5316 wl->fwlog_size -= len;
5317 memcpy(buffer, wl->fwlog, len);
5318
5319 /* Make room for new messages */
5320 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
5321
5322 mutex_unlock(&wl->mutex);
5323
5324 return len;
5325}
5326
5327static struct bin_attribute fwlog_attr = {
5328 .attr = {.name = "fwlog", .mode = S_IRUSR},
5329 .read = wl1271_sysfs_read_fwlog,
5330};
5331
f4afbed9 5332static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
5e037e74
LC		 5333{
5334 int i;
5335
f4afbed9
AN		 5336 wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x",
5337 oui, nic);
5e037e74 5338
f4afbed9 5339 if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
5e037e74
LC		 5340 wl1271_warning("NIC part of the MAC address wraps around!");
5341
f4afbed9 5342 for (i = 0; i < wl->num_mac_addr; i++) {
5e037e74
LC		 5343 wl->addresses[i].addr[0] = (u8)(oui >> 16);
5344 wl->addresses[i].addr[1] = (u8)(oui >> 8);
5345 wl->addresses[i].addr[2] = (u8) oui;
5346 wl->addresses[i].addr[3] = (u8)(nic >> 16);
5347 wl->addresses[i].addr[4] = (u8)(nic >> 8);
5348 wl->addresses[i].addr[5] = (u8) nic;
5349 nic++;
5350 }
5351
f4afbed9
AN		 5352 /* we may be one address short at the most */
5353 WARN_ON(wl->num_mac_addr + 1 < WLCORE_NUM_MAC_ADDRESSES);
5354
5355 /*
5356 * turn on the LAA bit in the first address and use it as
5357 * the last address.
5358 */
5359 if (wl->num_mac_addr < WLCORE_NUM_MAC_ADDRESSES) {
5360 int idx = WLCORE_NUM_MAC_ADDRESSES - 1;
5361 memcpy(&wl->addresses[idx], &wl->addresses[0],
5362 sizeof(wl->addresses[0]));
5363 /* LAA bit */
5364 wl->addresses[idx].addr[2] |= BIT(1);
5365 }
5366
5367 wl->hw->wiphy->n_addresses = WLCORE_NUM_MAC_ADDRESSES;
5e037e74
LC		 5368 wl->hw->wiphy->addresses = wl->addresses;
5369}
5370
30c5dbd1
LC		 5371static int wl12xx_get_hw_info(struct wl1271 *wl)
5372{
5373 int ret;
30c5dbd1
LC		 5374
5375 ret = wl12xx_set_power_on(wl);
5376 if (ret < 0)
4fb4e0be 5377 return ret;
30c5dbd1 5378
6134323f
IY		 5379 ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &wl->chip.id);
5380 if (ret < 0)
5381 goto out;
30c5dbd1 5382
00782136
LC		 5383 wl->fuse_oui_addr = 0;
5384 wl->fuse_nic_addr = 0;
30c5dbd1 5385
6134323f
IY		 5386 ret = wl->ops->get_pg_ver(wl, &wl->hw_pg_ver);
5387 if (ret < 0)
5388 goto out;
30c5dbd1 5389
30d9b4a5 5390 if (wl->ops->get_mac)
6134323f 5391 ret = wl->ops->get_mac(wl);
5e037e74 5392
30c5dbd1 5393out:
6134323f 5394 wl1271_power_off(wl);
30c5dbd1
LC		 5395 return ret;
5396}
5397
4b32a2c9 5398static int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 5399{
5400 int ret;
5e037e74 5401 u32 oui_addr = 0, nic_addr = 0;
f5fc0f86
LC		 5402
5403 if (wl->mac80211_registered)
5404 return 0;
5405
6f8d6b20 5406 if (wl->nvs_len >= 12) {
bc765bf3
SL		 5407 /* NOTE: The wl->nvs->nvs element must be first, in
5408 * order to simplify the casting, we assume it is at
5409 * the beginning of the wl->nvs structure.
5410 */
5411 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6 5412
5e037e74
LC		 5413 oui_addr =
5414 (nvs_ptr[11] << 16) + (nvs_ptr[10] << 8) + nvs_ptr[6];
5415 nic_addr =
5416 (nvs_ptr[5] << 16) + (nvs_ptr[4] << 8) + nvs_ptr[3];
5417 }
5418
5419 /* if the MAC address is zeroed in the NVS derive from fuse */
5420 if (oui_addr == 0 && nic_addr == 0) {
5421 oui_addr = wl->fuse_oui_addr;
5422 /* fuse has the BD_ADDR, the WLAN addresses are the next two */
5423 nic_addr = wl->fuse_nic_addr + 1;
31d26ec6
AN		 5424 }
5425
f4afbed9 5426 wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr);
f5fc0f86
LC		 5427
5428 ret = ieee80211_register_hw(wl->hw);
5429 if (ret < 0) {
5430 wl1271_error("unable to register mac80211 hw: %d", ret);
30c5dbd1 5431 goto out;
f5fc0f86
LC		 5432 }
5433
5434 wl->mac80211_registered = true;
5435
d60080ae
EP		 5436 wl1271_debugfs_init(wl);
5437
f5fc0f86
LC		 5438 wl1271_notice("loaded");
5439
30c5dbd1
LC		 5440out:
5441 return ret;
f5fc0f86
LC		 5442}
5443
4b32a2c9 5444static void wl1271_unregister_hw(struct wl1271 *wl)
3b56dd6a 5445{
3fcdab70 5446 if (wl->plt)
f3df1331 5447 wl1271_plt_stop(wl);
4ae3fa87 5448
3b56dd6a
TP		 5449 ieee80211_unregister_hw(wl->hw);
5450 wl->mac80211_registered = false;
5451
5452}
3b56dd6a 5453
bcab320b
EP		 5454static const struct ieee80211_iface_limit wlcore_iface_limits[] = {
5455 {
e7a6ba29 5456 .max = 3,
bcab320b
EP		 5457 .types = BIT(NL80211_IFTYPE_STATION),
5458 },
5459 {
5460 .max = 1,
5461 .types = BIT(NL80211_IFTYPE_AP) |
5462 BIT(NL80211_IFTYPE_P2P_GO) |
5463 BIT(NL80211_IFTYPE_P2P_CLIENT),
5464 },
5465};
5466
de40750f 5467static struct ieee80211_iface_combination
bcab320b
EP		 5468wlcore_iface_combinations[] = {
5469 {
e7a6ba29 5470 .max_interfaces = 3,
bcab320b
EP		 5471 .limits = wlcore_iface_limits,
5472 .n_limits = ARRAY_SIZE(wlcore_iface_limits),
5473 },
5474};
5475
4b32a2c9 5476static int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 5477{
7a55724e
JO		 5478 static const u32 cipher_suites[] = {
5479 WLAN_CIPHER_SUITE_WEP40,
5480 WLAN_CIPHER_SUITE_WEP104,
5481 WLAN_CIPHER_SUITE_TKIP,
5482 WLAN_CIPHER_SUITE_CCMP,
5483 WL1271_CIPHER_SUITE_GEM,
5484 };
5485
2c0133a4
AN		 5486 /* The tx descriptor buffer */
5487 wl->hw->extra_tx_headroom = sizeof(struct wl1271_tx_hw_descr);
5488
5489 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
5490 wl->hw->extra_tx_headroom += WL1271_EXTRA_SPACE_TKIP;
f5fc0f86
LC		 5491
5492 /* unit us */
5493 /* FIXME: find a proper value */
5494 wl->hw->channel_change_time = 10000;
50c500ad 5495 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 5496
5497 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
0a34332f 5498 IEEE80211_HW_SUPPORTS_PS |
f1d63a59 5499 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
4695dc91 5500 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 5501 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 5502 IEEE80211_HW_CONNECTION_MONITOR |
25eaea30 5503 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 5504 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 5505 IEEE80211_HW_AP_LINK_PS |
5506 IEEE80211_HW_AMPDU_AGGREGATION |
79aba1ba
EP		 5507 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
5508 IEEE80211_HW_SCAN_WHILE_IDLE;
f5fc0f86 5509
7a55724e
JO		 5510 wl->hw->wiphy->cipher_suites = cipher_suites;
5511 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
5512
e0d8bbf0 5513 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 5514 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
5515 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 5516 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 5517 wl->hw->wiphy->max_sched_scan_ssids = 16;
5518 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 5519 /*
5520 * Maximum length of elements in scanning probe request templates
5521 * should be the maximum length possible for a template, without
5522 * the IEEE80211 header of the template
5523 */
c08e371a 5524 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
ea559b46 5525 sizeof(struct ieee80211_header);
a8aaaf53 5526
c08e371a 5527 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
c9e79a47
LC		 5528 sizeof(struct ieee80211_header);
5529
dabf37db
EP		 5530 wl->hw->wiphy->max_remain_on_channel_duration = 5000;
5531
81ddbb5c
JB		 5532 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD |
5533 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
1ec23f7f 5534
4a31c11c
LC		 5535 /* make sure all our channels fit in the scanned_ch bitmask */
5536 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
5537 ARRAY_SIZE(wl1271_channels_5ghz) >
5538 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 5539 /*
5540 * We keep local copies of the band structs because we need to
5541 * modify them on a per-device basis.
5542 */
5543 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
5544 sizeof(wl1271_band_2ghz));
bfb92ca1
EP		 5545 memcpy(&wl->bands[IEEE80211_BAND_2GHZ].ht_cap,
5546 &wl->ht_cap[IEEE80211_BAND_2GHZ],
5547 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5548 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
5549 sizeof(wl1271_band_5ghz));
bfb92ca1
EP		 5550 memcpy(&wl->bands[IEEE80211_BAND_5GHZ].ht_cap,
5551 &wl->ht_cap[IEEE80211_BAND_5GHZ],
5552 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5553
5554 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
5555 &wl->bands[IEEE80211_BAND_2GHZ];
5556 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
5557 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 5558
12bd8949 5559 wl->hw->queues = 4;
31627dc5 5560 wl->hw->max_rates = 1;
12bd8949 5561
b7417d93
JO		 5562 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
5563
9c1b190b
AN		 5564 /* the FW answers probe-requests in AP-mode */
5565 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
5566 wl->hw->wiphy->probe_resp_offload =
5567 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
5568 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
5569 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
5570
bcab320b 5571 /* allowed interface combinations */
de40750f 5572 wlcore_iface_combinations[0].num_different_channels = wl->num_channels;
bcab320b
EP		 5573 wl->hw->wiphy->iface_combinations = wlcore_iface_combinations;
5574 wl->hw->wiphy->n_iface_combinations =
5575 ARRAY_SIZE(wlcore_iface_combinations);
5576
a390e85c 5577 SET_IEEE80211_DEV(wl->hw, wl->dev);
f5fc0f86 5578
f84f7d78 5579 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 5580 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 5581
ba421f8f 5582 wl->hw->max_rx_aggregation_subframes = wl->conf.ht.rx_ba_win_size;
4c9cfa78 5583
f5fc0f86
LC		 5584 return 0;
5585}
5586
f5fc0f86 5587#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 5588
c50a2825
EP		 5589struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
5590 u32 mbox_size)
f5fc0f86 5591{
f5fc0f86
LC		 5592 struct ieee80211_hw *hw;
5593 struct wl1271 *wl;
a8c0ddb5 5594 int i, j, ret;
1f37cbc9 5595 unsigned int order;
f5fc0f86 5596
c7ffb902 5597 BUILD_BUG_ON(AP_MAX_STATIONS > WL12XX_MAX_LINKS);
f80c2d12 5598
f5fc0f86
LC		 5599 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
5600 if (!hw) {
5601 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 5602 ret = -ENOMEM;
3b56dd6a
TP		 5603 goto err_hw_alloc;
5604 }
5605
f5fc0f86
LC		 5606 wl = hw->priv;
5607 memset(wl, 0, sizeof(*wl));
5608
96e0c683
AN		 5609 wl->priv = kzalloc(priv_size, GFP_KERNEL);
5610 if (!wl->priv) {
5611 wl1271_error("could not alloc wl priv");
5612 ret = -ENOMEM;
5613 goto err_priv_alloc;
5614 }
5615
87627214 5616 INIT_LIST_HEAD(&wl->wlvif_list);
01c09162 5617
f5fc0f86 5618 wl->hw = hw;
f5fc0f86 5619
a8c0ddb5 5620 for (i = 0; i < NUM_TX_QUEUES; i++)
c7ffb902 5621 for (j = 0; j < WL12XX_MAX_LINKS; j++)
a8c0ddb5
AN		 5622 skb_queue_head_init(&wl->links[j].tx_queue[i]);
5623
a620865e
IY		 5624 skb_queue_head_init(&wl->deferred_rx_queue);
5625 skb_queue_head_init(&wl->deferred_tx_queue);
5626
37b70a81 5627 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
a620865e 5628 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 5629 INIT_WORK(&wl->tx_work, wl1271_tx_work);
5630 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
5631 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
dabf37db 5632 INIT_DELAYED_WORK(&wl->roc_complete_work, wlcore_roc_complete_work);
55df5afb 5633 INIT_DELAYED_WORK(&wl->tx_watchdog_work, wl12xx_tx_watchdog_work);
77ddaa10 5634
92ef8960
EP		 5635 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
5636 if (!wl->freezable_wq) {
5637 ret = -ENOMEM;
5638 goto err_hw;
5639 }
5640
f5fc0f86 5641 wl->channel = WL1271_DEFAULT_CHANNEL;
f5fc0f86 5642 wl->rx_counter = 0;
f5fc0f86 5643 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 5644 wl->band = IEEE80211_BAND_2GHZ;
83d08d3f 5645 wl->channel_type = NL80211_CHAN_NO_HT;
830fb67b 5646 wl->flags = 0;
7fc3a864 5647 wl->sg_enabled = true;
66340e5b 5648 wl->sleep_auth = WL1271_PSM_ILLEGAL;
d717fd61 5649 wl->hw_pg_ver = -1;
b622d992
AN		 5650 wl->ap_ps_map = 0;
5651 wl->ap_fw_ps_map = 0;
606ea9fa 5652 wl->quirks = 0;
341b7cde 5653 wl->platform_quirks = 0;
f4df1bd5 5654 wl->system_hlid = WL12XX_SYSTEM_HLID;
da03209e 5655 wl->active_sta_count = 0;
95dac04f
IY		 5656 wl->fwlog_size = 0;
5657 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 5658
f4df1bd5
EP		 5659 /* The system link is always allocated */
5660 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
5661
25eeb9e3 5662 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
72b0624f 5663 for (i = 0; i < wl->num_tx_desc; i++)
f5fc0f86
LC		 5664 wl->tx_frames[i] = NULL;
5665
5666 spin_lock_init(&wl->wl_lock);
5667
4cc53383 5668 wl->state = WLCORE_STATE_OFF;
3fcdab70 5669 wl->fw_type = WL12XX_FW_TYPE_NONE;
f5fc0f86 5670 mutex_init(&wl->mutex);
2c38849f 5671 mutex_init(&wl->flush_mutex);
6f8d6b20 5672 init_completion(&wl->nvs_loading_complete);
f5fc0f86 5673
26a309c7 5674 order = get_order(aggr_buf_size);
1f37cbc9
IY		 5675 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
5676 if (!wl->aggr_buf) {
5677 ret = -ENOMEM;
92ef8960 5678 goto err_wq;
1f37cbc9 5679 }
26a309c7 5680 wl->aggr_buf_size = aggr_buf_size;
1f37cbc9 5681
990f5de7
IY		 5682 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
5683 if (!wl->dummy_packet) {
5684 ret = -ENOMEM;
5685 goto err_aggr;
5686 }
5687
95dac04f
IY		 5688 /* Allocate one page for the FW log */
5689 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
5690 if (!wl->fwlog) {
5691 ret = -ENOMEM;
5692 goto err_dummy_packet;
5693 }
5694
c50a2825
EP		 5695 wl->mbox_size = mbox_size;
5696 wl->mbox = kmalloc(wl->mbox_size, GFP_KERNEL | GFP_DMA);
690142e9
MG		 5697 if (!wl->mbox) {
5698 ret = -ENOMEM;
5699 goto err_fwlog;
5700 }
5701
c332a4b8 5702 return hw;
a1dd8187 5703
690142e9
MG		 5704err_fwlog:
5705 free_page((unsigned long)wl->fwlog);
5706
990f5de7
IY		 5707err_dummy_packet:
5708 dev_kfree_skb(wl->dummy_packet);
5709
1f37cbc9
IY		 5710err_aggr:
5711 free_pages((unsigned long)wl->aggr_buf, order);
5712
92ef8960
EP		 5713err_wq:
5714 destroy_workqueue(wl->freezable_wq);
5715
a1dd8187 5716err_hw:
3b56dd6a 5717 wl1271_debugfs_exit(wl);
96e0c683
AN		 5718 kfree(wl->priv);
5719
5720err_priv_alloc:
3b56dd6a
TP		 5721 ieee80211_free_hw(hw);
5722
5723err_hw_alloc:
a1dd8187 5724
a1dd8187 5725 return ERR_PTR(ret);
c332a4b8 5726}
ffeb501c 5727EXPORT_SYMBOL_GPL(wlcore_alloc_hw);
c332a4b8 5728
ffeb501c 5729int wlcore_free_hw(struct wl1271 *wl)
c332a4b8 5730{
95dac04f
IY		 5731 /* Unblock any fwlog readers */
5732 mutex_lock(&wl->mutex);
5733 wl->fwlog_size = -1;
5734 wake_up_interruptible_all(&wl->fwlog_waitq);
5735 mutex_unlock(&wl->mutex);
5736
f79f890c 5737 device_remove_bin_file(wl->dev, &fwlog_attr);
6f07b72a 5738
f79f890c 5739 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
6f07b72a 5740
f79f890c 5741 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
a8e27820 5742 kfree(wl->mbox);
95dac04f 5743 free_page((unsigned long)wl->fwlog);
990f5de7 5744 dev_kfree_skb(wl->dummy_packet);
26a309c7 5745 free_pages((unsigned long)wl->aggr_buf, get_order(wl->aggr_buf_size));
c332a4b8
TP		 5746
5747 wl1271_debugfs_exit(wl);
5748
c332a4b8
TP		 5749 vfree(wl->fw);
5750 wl->fw = NULL;
3fcdab70 5751 wl->fw_type = WL12XX_FW_TYPE_NONE;
c332a4b8
TP		 5752 kfree(wl->nvs);
5753 wl->nvs = NULL;
5754
0afd04e5 5755 kfree(wl->fw_status_1);
c332a4b8 5756 kfree(wl->tx_res_if);
92ef8960 5757 destroy_workqueue(wl->freezable_wq);
c332a4b8 5758
96e0c683 5759 kfree(wl->priv);
c332a4b8
TP		 5760 ieee80211_free_hw(wl->hw);
5761
5762 return 0;
5763}
ffeb501c 5764EXPORT_SYMBOL_GPL(wlcore_free_hw);
50b3eb4b 5765
a390e85c
FB		 5766static irqreturn_t wl12xx_hardirq(int irq, void *cookie)
5767{
5768 struct wl1271 *wl = cookie;
5769 unsigned long flags;
5770
5771 wl1271_debug(DEBUG_IRQ, "IRQ");
5772
5773 /* complete the ELP completion */
5774 spin_lock_irqsave(&wl->wl_lock, flags);
5775 set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
5776 if (wl->elp_compl) {
5777 complete(wl->elp_compl);
5778 wl->elp_compl = NULL;
5779 }
5780
5781 if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
5782 /* don't enqueue a work right now. mark it as pending */
5783 set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
5784 wl1271_debug(DEBUG_IRQ, "should not enqueue work");
5785 disable_irq_nosync(wl->irq);
5786 pm_wakeup_event(wl->dev, 0);
5787 spin_unlock_irqrestore(&wl->wl_lock, flags);
5788 return IRQ_HANDLED;
5789 }
5790 spin_unlock_irqrestore(&wl->wl_lock, flags);
5791
5792 return IRQ_WAKE_THREAD;
5793}
5794
6f8d6b20 5795static void wlcore_nvs_cb(const struct firmware *fw, void *context)
ce2a217c 5796{
6f8d6b20
IY		 5797 struct wl1271 *wl = context;
5798 struct platform_device *pdev = wl->pdev;
a390e85c 5799 struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
a390e85c 5800 unsigned long irqflags;
ffeb501c 5801 int ret;
a390e85c 5802
6f8d6b20
IY		 5803 if (fw) {
5804 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
5805 if (!wl->nvs) {
5806 wl1271_error("Could not allocate nvs data");
5807 goto out;
5808 }
5809 wl->nvs_len = fw->size;
5810 } else {
5811 wl1271_debug(DEBUG_BOOT, "Could not get nvs file %s",
5812 WL12XX_NVS_NAME);
5813 wl->nvs = NULL;
5814 wl->nvs_len = 0;
a390e85c
FB		 5815 }
5816
3992eb2b
IY		 5817 ret = wl->ops->setup(wl);
5818 if (ret < 0)
6f8d6b20 5819 goto out_free_nvs;
3992eb2b 5820
72b0624f
AN		 5821 BUG_ON(wl->num_tx_desc > WLCORE_MAX_TX_DESCRIPTORS);
5822
e87288f0
LC		 5823 /* adjust some runtime configuration parameters */
5824 wlcore_adjust_conf(wl);
5825
a390e85c 5826 wl->irq = platform_get_irq(pdev, 0);
a390e85c
FB		 5827 wl->platform_quirks = pdata->platform_quirks;
5828 wl->set_power = pdata->set_power;
a390e85c
FB		 5829 wl->if_ops = pdata->ops;
5830
a390e85c
FB		 5831 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
5832 irqflags = IRQF_TRIGGER_RISING;
5833 else
5834 irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
5835
b5b45b3c 5836 ret = request_threaded_irq(wl->irq, wl12xx_hardirq, wlcore_irq,
a390e85c
FB		 5837 irqflags,
5838 pdev->name, wl);
5839 if (ret < 0) {
5840 wl1271_error("request_irq() failed: %d", ret);
6f8d6b20 5841 goto out_free_nvs;
a390e85c
FB		 5842 }
5843
dfb89c56 5844#ifdef CONFIG_PM
a390e85c
FB		 5845 ret = enable_irq_wake(wl->irq);
5846 if (!ret) {
5847 wl->irq_wake_enabled = true;
5848 device_init_wakeup(wl->dev, 1);
b95d7cef 5849 if (pdata->pwr_in_suspend) {
ffeb501c 5850 wl->hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
b95d7cef
ES		 5851 wl->hw->wiphy->wowlan.n_patterns =
5852 WL1271_MAX_RX_FILTERS;
5853 wl->hw->wiphy->wowlan.pattern_min_len = 1;
5854 wl->hw->wiphy->wowlan.pattern_max_len =
5855 WL1271_RX_FILTER_MAX_PATTERN_SIZE;
5856 }
a390e85c 5857 }
dfb89c56 5858#endif
a390e85c
FB		 5859 disable_irq(wl->irq);
5860
4afc37a0
LC		 5861 ret = wl12xx_get_hw_info(wl);
5862 if (ret < 0) {
5863 wl1271_error("couldn't get hw info");
8b425e62 5864 goto out_irq;
4afc37a0
LC		 5865 }
5866
5867 ret = wl->ops->identify_chip(wl);
5868 if (ret < 0)
8b425e62 5869 goto out_irq;
4afc37a0 5870
a390e85c
FB		 5871 ret = wl1271_init_ieee80211(wl);
5872 if (ret)
5873 goto out_irq;
5874
5875 ret = wl1271_register_hw(wl);
5876 if (ret)
5877 goto out_irq;
5878
f79f890c
FB		 5879 /* Create sysfs file to control bt coex state */
5880 ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
5881 if (ret < 0) {
5882 wl1271_error("failed to create sysfs file bt_coex_state");
8b425e62 5883 goto out_unreg;
f79f890c
FB		 5884 }
5885
5886 /* Create sysfs file to get HW PG version */
5887 ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
5888 if (ret < 0) {
5889 wl1271_error("failed to create sysfs file hw_pg_ver");
5890 goto out_bt_coex_state;
5891 }
5892
5893 /* Create sysfs file for the FW log */
5894 ret = device_create_bin_file(wl->dev, &fwlog_attr);
5895 if (ret < 0) {
5896 wl1271_error("failed to create sysfs file fwlog");
5897 goto out_hw_pg_ver;
5898 }
5899
6f8d6b20 5900 wl->initialized = true;
ffeb501c 5901 goto out;
a390e85c 5902
f79f890c
FB		 5903out_hw_pg_ver:
5904 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
5905
5906out_bt_coex_state:
5907 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
5908
8b425e62
LC		 5909out_unreg:
5910 wl1271_unregister_hw(wl);
5911
a390e85c
FB		 5912out_irq:
5913 free_irq(wl->irq, wl);
5914
6f8d6b20
IY		 5915out_free_nvs:
5916 kfree(wl->nvs);
5917
a390e85c 5918out:
6f8d6b20
IY		 5919 release_firmware(fw);
5920 complete_all(&wl->nvs_loading_complete);
5921}
5922
5923int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
5924{
5925 int ret;
5926
5927 if (!wl->ops || !wl->ptable)
5928 return -EINVAL;
5929
5930 wl->dev = &pdev->dev;
5931 wl->pdev = pdev;
5932 platform_set_drvdata(pdev, wl);
5933
5934 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
5935 WL12XX_NVS_NAME, &pdev->dev, GFP_KERNEL,
5936 wl, wlcore_nvs_cb);
5937 if (ret < 0) {
5938 wl1271_error("request_firmware_nowait failed: %d", ret);
5939 complete_all(&wl->nvs_loading_complete);
5940 }
5941
a390e85c 5942 return ret;
ce2a217c 5943}
b2ba99ff 5944EXPORT_SYMBOL_GPL(wlcore_probe);
ce2a217c 5945
b2ba99ff 5946int __devexit wlcore_remove(struct platform_device *pdev)
ce2a217c 5947{
a390e85c
FB		 5948 struct wl1271 *wl = platform_get_drvdata(pdev);
5949
6f8d6b20
IY		 5950 wait_for_completion(&wl->nvs_loading_complete);
5951 if (!wl->initialized)
5952 return 0;
5953
a390e85c
FB		 5954 if (wl->irq_wake_enabled) {
5955 device_init_wakeup(wl->dev, 0);
5956 disable_irq_wake(wl->irq);
5957 }
5958 wl1271_unregister_hw(wl);
5959 free_irq(wl->irq, wl);
ffeb501c 5960 wlcore_free_hw(wl);
a390e85c 5961
ce2a217c
FB		 5962 return 0;
5963}
b2ba99ff 5964EXPORT_SYMBOL_GPL(wlcore_remove);
ce2a217c 5965
491bbd6b 5966u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5967EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5968module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5969MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5970
95dac04f 5971module_param_named(fwlog, fwlog_param, charp, 0);
2c882fa4 5972MODULE_PARM_DESC(fwlog,
95dac04f
IY		 5973 "FW logger options: continuous, ondemand, dbgpins or disable");
5974
2a5bff09
EP		 5975module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5976MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5977
34785be5
AN		 5978module_param(no_recovery, bool, S_IRUSR | S_IWUSR);
5979MODULE_PARM_DESC(no_recovery, "Prevent HW recovery. FW will remain stuck.");
5980
50b3eb4b 5981MODULE_LICENSE("GPL");
b1a48cab 5982MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5983MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
0635ad45 5984MODULE_FIRMWARE(WL12XX_NVS_NAME);
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