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wlcore: workaround start_sta problem in wl12xx fw
[deliverable/linux.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
154da67c 82 ret = wl12xx_cmd_set_peer_state(wl, wlvif->sta.hlid);
ef4b29e9
EP		 83 if (ret < 0)
84 return ret;
85
0603d891 86 wl12xx_croc(wl, wlvif->role_id);
251c177f 87
ef4b29e9
EP		 88 wl1271_info("Association completed.");
89 return 0;
90}
c2c192ac 91
b7417d93 92static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 93 struct regulatory_request *request)
94{
b7417d93
JO		 95 struct ieee80211_supported_band *band;
96 struct ieee80211_channel *ch;
97 int i;
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
111 return 0;
112}
113
9eb599e9
EP		 114static int wl1271_set_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif,
115 bool enable)
77ddaa10
EP		 116{
117 int ret = 0;
118
119 /* we should hold wl->mutex */
9eb599e9 120 ret = wl1271_acx_ps_rx_streaming(wl, wlvif, enable);
77ddaa10
EP		 121 if (ret < 0)
122 goto out;
123
124 if (enable)
0744bdb6 125 set_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
77ddaa10 126 else
0744bdb6 127 clear_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags);
77ddaa10
EP		 128out:
129 return ret;
130}
131
132/*
133 * this function is being called when the rx_streaming interval
134 * has beed changed or rx_streaming should be disabled
135 */
9eb599e9 136int wl1271_recalc_rx_streaming(struct wl1271 *wl, struct wl12xx_vif *wlvif)
77ddaa10
EP		 137{
138 int ret = 0;
139 int period = wl->conf.rx_streaming.interval;
140
141 /* don't reconfigure if rx_streaming is disabled */
0744bdb6 142 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
77ddaa10
EP		 143 goto out;
144
145 /* reconfigure/disable according to new streaming_period */
146 if (period &&
ba8447f6 147 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
77ddaa10
EP		 148 (wl->conf.rx_streaming.always ||
149 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
9eb599e9 150 ret = wl1271_set_rx_streaming(wl, wlvif, true);
77ddaa10 151 else {
9eb599e9 152 ret = wl1271_set_rx_streaming(wl, wlvif, false);
77ddaa10 153 /* don't cancel_work_sync since we might deadlock */
9eb599e9 154 del_timer_sync(&wlvif->rx_streaming_timer);
77ddaa10
EP		 155 }
156out:
157 return ret;
158}
159
160static void wl1271_rx_streaming_enable_work(struct work_struct *work)
161{
162 int ret;
9eb599e9
EP		 163 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
164 rx_streaming_enable_work);
165 struct wl1271 *wl = wlvif->wl;
77ddaa10
EP		 166
167 mutex_lock(&wl->mutex);
168
0744bdb6 169 if (test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags) ||
ba8447f6 170 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
77ddaa10
EP		 171 (!wl->conf.rx_streaming.always &&
172 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
173 goto out;
174
175 if (!wl->conf.rx_streaming.interval)
176 goto out;
177
178 ret = wl1271_ps_elp_wakeup(wl);
179 if (ret < 0)
180 goto out;
181
9eb599e9 182 ret = wl1271_set_rx_streaming(wl, wlvif, true);
77ddaa10
EP		 183 if (ret < 0)
184 goto out_sleep;
185
186 /* stop it after some time of inactivity */
9eb599e9 187 mod_timer(&wlvif->rx_streaming_timer,
77ddaa10
EP		 188 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
189
190out_sleep:
191 wl1271_ps_elp_sleep(wl);
192out:
193 mutex_unlock(&wl->mutex);
194}
195
196static void wl1271_rx_streaming_disable_work(struct work_struct *work)
197{
198 int ret;
9eb599e9
EP		 199 struct wl12xx_vif *wlvif = container_of(work, struct wl12xx_vif,
200 rx_streaming_disable_work);
201 struct wl1271 *wl = wlvif->wl;
77ddaa10
EP		 202
203 mutex_lock(&wl->mutex);
204
0744bdb6 205 if (!test_bit(WLVIF_FLAG_RX_STREAMING_STARTED, &wlvif->flags))
77ddaa10
EP		 206 goto out;
207
208 ret = wl1271_ps_elp_wakeup(wl);
209 if (ret < 0)
210 goto out;
211
9eb599e9 212 ret = wl1271_set_rx_streaming(wl, wlvif, false);
77ddaa10
EP		 213 if (ret)
214 goto out_sleep;
215
216out_sleep:
217 wl1271_ps_elp_sleep(wl);
218out:
219 mutex_unlock(&wl->mutex);
220}
221
222static void wl1271_rx_streaming_timer(unsigned long data)
223{
9eb599e9
EP		 224 struct wl12xx_vif *wlvif = (struct wl12xx_vif *)data;
225 struct wl1271 *wl = wlvif->wl;
226 ieee80211_queue_work(wl->hw, &wlvif->rx_streaming_disable_work);
77ddaa10
EP		 227}
228
55df5afb
AN		 229/* wl->mutex must be taken */
230void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl)
231{
232 /* if the watchdog is not armed, don't do anything */
233 if (wl->tx_allocated_blocks == 0)
234 return;
235
236 cancel_delayed_work(&wl->tx_watchdog_work);
237 ieee80211_queue_delayed_work(wl->hw, &wl->tx_watchdog_work,
238 msecs_to_jiffies(wl->conf.tx.tx_watchdog_timeout));
239}
240
241static void wl12xx_tx_watchdog_work(struct work_struct *work)
242{
243 struct delayed_work *dwork;
244 struct wl1271 *wl;
245
246 dwork = container_of(work, struct delayed_work, work);
247 wl = container_of(dwork, struct wl1271, tx_watchdog_work);
248
249 mutex_lock(&wl->mutex);
250
4cc53383 251 if (unlikely(wl->state != WLCORE_STATE_ON))
55df5afb
AN		 252 goto out;
253
254 /* Tx went out in the meantime - everything is ok */
255 if (unlikely(wl->tx_allocated_blocks == 0))
256 goto out;
257
258 /*
259 * if a ROC is in progress, we might not have any Tx for a long
260 * time (e.g. pending Tx on the non-ROC channels)
261 */
262 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
263 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to ROC",
264 wl->conf.tx.tx_watchdog_timeout);
265 wl12xx_rearm_tx_watchdog_locked(wl);
266 goto out;
267 }
268
269 /*
270 * if a scan is in progress, we might not have any Tx for a long
271 * time
272 */
273 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
274 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms due to scan",
275 wl->conf.tx.tx_watchdog_timeout);
276 wl12xx_rearm_tx_watchdog_locked(wl);
277 goto out;
278 }
279
280 /*
281 * AP might cache a frame for a long time for a sleeping station,
282 * so rearm the timer if there's an AP interface with stations. If
283 * Tx is genuinely stuck we will most hopefully discover it when all
284 * stations are removed due to inactivity.
285 */
286 if (wl->active_sta_count) {
287 wl1271_debug(DEBUG_TX, "No Tx (in FW) for %d ms. AP has "
288 " %d stations",
289 wl->conf.tx.tx_watchdog_timeout,
290 wl->active_sta_count);
291 wl12xx_rearm_tx_watchdog_locked(wl);
292 goto out;
293 }
294
295 wl1271_error("Tx stuck (in FW) for %d ms. Starting recovery",
296 wl->conf.tx.tx_watchdog_timeout);
297 wl12xx_queue_recovery_work(wl);
298
299out:
300 mutex_unlock(&wl->mutex);
301}
302
e87288f0 303static void wlcore_adjust_conf(struct wl1271 *wl)
8a08048a 304{
95dac04f
IY		 305 /* Adjust settings according to optional module parameters */
306 if (fwlog_param) {
307 if (!strcmp(fwlog_param, "continuous")) {
308 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
309 } else if (!strcmp(fwlog_param, "ondemand")) {
310 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
311 } else if (!strcmp(fwlog_param, "dbgpins")) {
312 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
313 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
314 } else if (!strcmp(fwlog_param, "disable")) {
315 wl->conf.fwlog.mem_blocks = 0;
316 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
317 } else {
318 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
319 }
320 }
321}
2b60100b 322
6e8cd331
EP		 323static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl,
324 struct wl12xx_vif *wlvif,
325 u8 hlid, u8 tx_pkts)
b622d992 326{
da03209e 327 bool fw_ps, single_sta;
b622d992 328
b622d992 329 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 330 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 331
332 /*
333 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 334 * packets in FW or if the STA is awake.
b622d992 335 */
9b17f1b3 336 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
6e8cd331 337 wl12xx_ps_link_end(wl, wlvif, hlid);
b622d992 338
da03209e
AN		 339 /*
340 * Start high-level PS if the STA is asleep with enough blocks in FW.
341 * Make an exception if this is the only connected station. In this
342 * case FW-memory congestion is not a problem.
343 */
344 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
6e8cd331 345 wl12xx_ps_link_start(wl, wlvif, hlid, true);
b622d992
AN		 346}
347
9b17f1b3 348static void wl12xx_irq_update_links_status(struct wl1271 *wl,
c7ffb902 349 struct wl12xx_vif *wlvif,
0afd04e5 350 struct wl_fw_status_2 *status)
b622d992 351{
c7ffb902 352 struct wl1271_link *lnk;
b622d992 353 u32 cur_fw_ps_map;
9b17f1b3
AN		 354 u8 hlid, cnt;
355
356 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 357
358 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
359 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
360 wl1271_debug(DEBUG_PSM,
361 "link ps prev 0x%x cur 0x%x changed 0x%x",
362 wl->ap_fw_ps_map, cur_fw_ps_map,
363 wl->ap_fw_ps_map ^ cur_fw_ps_map);
364
365 wl->ap_fw_ps_map = cur_fw_ps_map;
366 }
367
c7ffb902
EP		 368 for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS) {
369 lnk = &wl->links[hlid];
6bac40a6
AN		 370 cnt = status->counters.tx_lnk_free_pkts[hlid] -
371 lnk->prev_freed_pkts;
b622d992 372
6bac40a6 373 lnk->prev_freed_pkts = status->counters.tx_lnk_free_pkts[hlid];
c7ffb902 374 lnk->allocated_pkts -= cnt;
9b17f1b3 375
6e8cd331
EP		 376 wl12xx_irq_ps_regulate_link(wl, wlvif, hlid,
377 lnk->allocated_pkts);
b622d992
AN		 378 }
379}
380
8b7c0fc3
IY		 381static int wlcore_fw_status(struct wl1271 *wl,
382 struct wl_fw_status_1 *status_1,
383 struct wl_fw_status_2 *status_2)
f5fc0f86 384{
6e8cd331 385 struct wl12xx_vif *wlvif;
ac5e1e39 386 struct timespec ts;
13b107dd 387 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 388 int avail, freed_blocks;
bf54e301 389 int i;
6bac40a6 390 size_t status_len;
8b7c0fc3 391 int ret;
6bac40a6 392
0afd04e5
AN		 393 status_len = WLCORE_FW_STATUS_1_LEN(wl->num_rx_desc) +
394 sizeof(*status_2) + wl->fw_status_priv_len;
f5fc0f86 395
8b7c0fc3
IY		 396 ret = wlcore_raw_read_data(wl, REG_RAW_FW_STATUS_ADDR, status_1,
397 status_len, false);
398 if (ret < 0)
399 return ret;
13b107dd 400
f5fc0f86
LC		 401 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
402 "drv_rx_counter = %d, tx_results_counter = %d)",
0afd04e5
AN		 403 status_1->intr,
404 status_1->fw_rx_counter,
405 status_1->drv_rx_counter,
406 status_1->tx_results_counter);
f5fc0f86 407
bf54e301
AN		 408 for (i = 0; i < NUM_TX_QUEUES; i++) {
409 /* prevent wrap-around in freed-packets counter */
742246f8 410 wl->tx_allocated_pkts[i] -=
0afd04e5 411 (status_2->counters.tx_released_pkts[i] -
bf54e301
AN		 412 wl->tx_pkts_freed[i]) & 0xff;
413
0afd04e5 414 wl->tx_pkts_freed[i] = status_2->counters.tx_released_pkts[i];
bf54e301
AN		 415 }
416
bdf91cfa
AN		 417 /* prevent wrap-around in total blocks counter */
418 if (likely(wl->tx_blocks_freed <=
0afd04e5
AN		 419 le32_to_cpu(status_2->total_released_blks)))
420 freed_blocks = le32_to_cpu(status_2->total_released_blks) -
bdf91cfa
AN		 421 wl->tx_blocks_freed;
422 else
423 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
0afd04e5 424 le32_to_cpu(status_2->total_released_blks);
bdf91cfa 425
0afd04e5 426 wl->tx_blocks_freed = le32_to_cpu(status_2->total_released_blks);
13b107dd 427
7bb5d6ce
AN		 428 wl->tx_allocated_blocks -= freed_blocks;
429
55df5afb
AN		 430 /*
431 * If the FW freed some blocks:
432 * If we still have allocated blocks - re-arm the timer, Tx is
433 * not stuck. Otherwise, cancel the timer (no Tx currently).
434 */
435 if (freed_blocks) {
436 if (wl->tx_allocated_blocks)
437 wl12xx_rearm_tx_watchdog_locked(wl);
438 else
439 cancel_delayed_work(&wl->tx_watchdog_work);
440 }
441
0afd04e5 442 avail = le32_to_cpu(status_2->tx_total) - wl->tx_allocated_blocks;
13b107dd 443
4d56ad9c
EP		 444 /*
445 * The FW might change the total number of TX memblocks before
446 * we get a notification about blocks being released. Thus, the
447 * available blocks calculation might yield a temporary result
448 * which is lower than the actual available blocks. Keeping in
449 * mind that only blocks that were allocated can be moved from
450 * TX to RX, tx_blocks_available should never decrease here.
451 */
452 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
453 avail);
f5fc0f86 454
a522550a 455 /* if more blocks are available now, tx work can be scheduled */
13b107dd 456 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 457 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 458
4d56ad9c 459 /* for AP update num of allocated TX blocks per link and ps status */
6e8cd331 460 wl12xx_for_each_wlvif_ap(wl, wlvif) {
0afd04e5 461 wl12xx_irq_update_links_status(wl, wlvif, status_2);
6e8cd331 462 }
4d56ad9c 463
f5fc0f86 464 /* update the host-chipset time offset */
ac5e1e39
JO		 465 getnstimeofday(&ts);
466 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
0afd04e5 467 (s64)le32_to_cpu(status_2->fw_localtime);
8b7c0fc3
IY		 468
469 return 0;
f5fc0f86
LC		 470}
471
a620865e
IY		 472static void wl1271_flush_deferred_work(struct wl1271 *wl)
473{
474 struct sk_buff *skb;
475
476 /* Pass all received frames to the network stack */
477 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
478 ieee80211_rx_ni(wl->hw, skb);
479
480 /* Return sent skbs to the network stack */
481 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 482 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 483}
484
485static void wl1271_netstack_work(struct work_struct *work)
486{
487 struct wl1271 *wl =
488 container_of(work, struct wl1271, netstack_work);
489
490 do {
491 wl1271_flush_deferred_work(wl);
492 } while (skb_queue_len(&wl->deferred_rx_queue));
493}
1e73eb62 494
a620865e
IY		 495#define WL1271_IRQ_MAX_LOOPS 256
496
b5b45b3c 497static int wlcore_irq_locked(struct wl1271 *wl)
f5fc0f86 498{
b5b45b3c 499 int ret = 0;
c15f63bf 500 u32 intr;
1e73eb62 501 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 502 bool done = false;
503 unsigned int defer_count;
b07d4037
IY		 504 unsigned long flags;
505
341b7cde
IY		 506 /*
507 * In case edge triggered interrupt must be used, we cannot iterate
508 * more than once without introducing race conditions with the hardirq.
509 */
510 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
511 loopcount = 1;
512
f5fc0f86
LC		 513 wl1271_debug(DEBUG_IRQ, "IRQ work");
514
4cc53383 515 if (unlikely(wl->state != WLCORE_STATE_ON))
f5fc0f86
LC		 516 goto out;
517
a620865e 518 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 519 if (ret < 0)
520 goto out;
521
a620865e
IY		 522 while (!done && loopcount--) {
523 /*
524 * In order to avoid a race with the hardirq, clear the flag
525 * before acknowledging the chip. Since the mutex is held,
526 * wl1271_ps_elp_wakeup cannot be called concurrently.
527 */
528 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
529 smp_mb__after_clear_bit();
1e73eb62 530
8b7c0fc3 531 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
b5b45b3c 532 if (ret < 0)
8b7c0fc3 533 goto out;
53d67a50
AN		 534
535 wlcore_hw_tx_immediate_compl(wl);
536
0afd04e5 537 intr = le32_to_cpu(wl->fw_status_1->intr);
f5755fe9 538 intr &= WLCORE_ALL_INTR_MASK;
1e73eb62 539 if (!intr) {
a620865e 540 done = true;
1e73eb62
JO		 541 continue;
542 }
f5fc0f86 543
ccc83b04 544 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
f5755fe9
IR		 545 wl1271_error("HW watchdog interrupt received! starting recovery.");
546 wl->watchdog_recovery = true;
b5b45b3c 547 ret = -EIO;
f5755fe9
IR		 548
549 /* restarting the chip. ignore any other interrupt. */
550 goto out;
551 }
552
553 if (unlikely(intr & WL1271_ACX_SW_INTR_WATCHDOG)) {
554 wl1271_error("SW watchdog interrupt received! "
ccc83b04 555 "starting recovery.");
afbe3718 556 wl->watchdog_recovery = true;
b5b45b3c 557 ret = -EIO;
ccc83b04
EP		 558
559 /* restarting the chip. ignore any other interrupt. */
560 goto out;
561 }
562
a620865e 563 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 564 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 565
045b9b5f 566 ret = wlcore_rx(wl, wl->fw_status_1);
b5b45b3c 567 if (ret < 0)
045b9b5f 568 goto out;
f5fc0f86 569
a522550a 570 /* Check if any tx blocks were freed */
b07d4037 571 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 572 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 573 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 574 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 575 /*
576 * In order to avoid starvation of the TX path,
577 * call the work function directly.
578 */
eb96f841 579 ret = wlcore_tx_work_locked(wl);
b5b45b3c 580 if (ret < 0)
eb96f841 581 goto out;
b07d4037
IY		 582 } else {
583 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 584 }
585
8aad2464 586 /* check for tx results */
045b9b5f 587 ret = wlcore_hw_tx_delayed_compl(wl);
b5b45b3c 588 if (ret < 0)
045b9b5f 589 goto out;
a620865e
IY		 590
591 /* Make sure the deferred queues don't get too long */
592 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
593 skb_queue_len(&wl->deferred_rx_queue);
594 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
595 wl1271_flush_deferred_work(wl);
1e73eb62 596 }
f5fc0f86 597
1e73eb62
JO		 598 if (intr & WL1271_ACX_INTR_EVENT_A) {
599 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
045b9b5f 600 ret = wl1271_event_handle(wl, 0);
b5b45b3c 601 if (ret < 0)
045b9b5f 602 goto out;
1e73eb62 603 }
f5fc0f86 604
1e73eb62
JO		 605 if (intr & WL1271_ACX_INTR_EVENT_B) {
606 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
045b9b5f 607 ret = wl1271_event_handle(wl, 1);
b5b45b3c 608 if (ret < 0)
045b9b5f 609 goto out;
1e73eb62 610 }
f5fc0f86 611
1e73eb62
JO		 612 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
613 wl1271_debug(DEBUG_IRQ,
614 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 615
1e73eb62
JO		 616 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
617 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 618 }
f5fc0f86 619
f5fc0f86
LC		 620 wl1271_ps_elp_sleep(wl);
621
622out:
b5b45b3c
AN		 623 return ret;
624}
625
626static irqreturn_t wlcore_irq(int irq, void *cookie)
627{
628 int ret;
629 unsigned long flags;
630 struct wl1271 *wl = cookie;
631
632 /* TX might be handled here, avoid redundant work */
633 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
634 cancel_work_sync(&wl->tx_work);
635
636 mutex_lock(&wl->mutex);
637
638 ret = wlcore_irq_locked(wl);
639 if (ret)
640 wl12xx_queue_recovery_work(wl);
641
b07d4037
IY		 642 spin_lock_irqsave(&wl->wl_lock, flags);
643 /* In case TX was not handled here, queue TX work */
644 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
645 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 646 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 647 ieee80211_queue_work(wl->hw, &wl->tx_work);
648 spin_unlock_irqrestore(&wl->wl_lock, flags);
649
f5fc0f86 650 mutex_unlock(&wl->mutex);
a620865e
IY		 651
652 return IRQ_HANDLED;
f5fc0f86
LC		 653}
654
4549d09c
EP		 655struct vif_counter_data {
656 u8 counter;
657
658 struct ieee80211_vif *cur_vif;
659 bool cur_vif_running;
660};
661
662static void wl12xx_vif_count_iter(void *data, u8 *mac,
663 struct ieee80211_vif *vif)
664{
665 struct vif_counter_data *counter = data;
666
667 counter->counter++;
668 if (counter->cur_vif == vif)
669 counter->cur_vif_running = true;
670}
671
672/* caller must not hold wl->mutex, as it might deadlock */
673static void wl12xx_get_vif_count(struct ieee80211_hw *hw,
674 struct ieee80211_vif *cur_vif,
675 struct vif_counter_data *data)
676{
677 memset(data, 0, sizeof(*data));
678 data->cur_vif = cur_vif;
679
680 ieee80211_iterate_active_interfaces(hw,
681 wl12xx_vif_count_iter, data);
682}
683
3fcdab70 684static int wl12xx_fetch_firmware(struct wl1271 *wl, bool plt)
f5fc0f86
LC		 685{
686 const struct firmware *fw;
166d504e 687 const char *fw_name;
3fcdab70 688 enum wl12xx_fw_type fw_type;
f5fc0f86
LC		 689 int ret;
690
3fcdab70
EP		 691 if (plt) {
692 fw_type = WL12XX_FW_TYPE_PLT;
6f7dd16c 693 fw_name = wl->plt_fw_name;
3fcdab70 694 } else {
4549d09c
EP		 695 /*
696 * we can't call wl12xx_get_vif_count() here because
697 * wl->mutex is taken, so use the cached last_vif_count value
698 */
9b1a0a77 699 if (wl->last_vif_count > 1 && wl->mr_fw_name) {
4549d09c 700 fw_type = WL12XX_FW_TYPE_MULTI;
6f7dd16c 701 fw_name = wl->mr_fw_name;
4549d09c
EP		 702 } else {
703 fw_type = WL12XX_FW_TYPE_NORMAL;
6f7dd16c 704 fw_name = wl->sr_fw_name;
4549d09c 705 }
3fcdab70
EP		 706 }
707
708 if (wl->fw_type == fw_type)
709 return 0;
166d504e
AN		 710
711 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
712
a390e85c 713 ret = request_firmware(&fw, fw_name, wl->dev);
f5fc0f86
LC		 714
715 if (ret < 0) {
35898935 716 wl1271_error("could not get firmware %s: %d", fw_name, ret);
f5fc0f86
LC		 717 return ret;
718 }
719
720 if (fw->size % 4) {
721 wl1271_error("firmware size is not multiple of 32 bits: %zu",
722 fw->size);
723 ret = -EILSEQ;
724 goto out;
725 }
726
166d504e 727 vfree(wl->fw);
3fcdab70 728 wl->fw_type = WL12XX_FW_TYPE_NONE;
f5fc0f86 729 wl->fw_len = fw->size;
1fba4974 730 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 731
732 if (!wl->fw) {
733 wl1271_error("could not allocate memory for the firmware");
734 ret = -ENOMEM;
735 goto out;
736 }
737
738 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86 739 ret = 0;
3fcdab70 740 wl->fw_type = fw_type;
f5fc0f86
LC		 741out:
742 release_firmware(fw);
743
744 return ret;
745}
746
baacb9ae
IY		 747void wl12xx_queue_recovery_work(struct wl1271 *wl)
748{
680c6055
ES		 749 WARN_ON(!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
750
b666bb7f 751 /* Avoid a recursive recovery */
792a58a8 752 if (wl->state == WLCORE_STATE_ON) {
4cc53383 753 wl->state = WLCORE_STATE_RESTARTING;
792a58a8 754 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
b666bb7f 755 wlcore_disable_interrupts_nosync(wl);
baacb9ae 756 ieee80211_queue_work(wl->hw, &wl->recovery_work);
b666bb7f 757 }
baacb9ae
IY		 758}
759
95dac04f
IY		 760size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
761{
762 size_t len = 0;
763
764 /* The FW log is a length-value list, find where the log end */
765 while (len < maxlen) {
766 if (memblock[len] == 0)
767 break;
768 if (len + memblock[len] + 1 > maxlen)
769 break;
770 len += memblock[len] + 1;
771 }
772
773 /* Make sure we have enough room */
774 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
775
776 /* Fill the FW log file, consumed by the sysfs fwlog entry */
777 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
778 wl->fwlog_size += len;
779
780 return len;
781}
782
1e41213f
IC		 783#define WLCORE_FW_LOG_END 0x2000000
784
95dac04f
IY		 785static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
786{
787 u32 addr;
1e41213f
IC		 788 u32 offset;
789 u32 end_of_log;
95dac04f 790 u8 *block;
8b7c0fc3 791 int ret;
95dac04f 792
6f7dd16c 793 if ((wl->quirks & WLCORE_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
95dac04f
IY		 794 (wl->conf.fwlog.mem_blocks == 0))
795 return;
796
797 wl1271_info("Reading FW panic log");
798
799 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
800 if (!block)
801 return;
802
803 /*
804 * Make sure the chip is awake and the logger isn't active.
afbe3718 805 * Do not send a stop fwlog command if the fw is hanged.
95dac04f 806 */
1e41213f 807 if (wl1271_ps_elp_wakeup(wl))
afbe3718 808 goto out;
1e41213f
IC		 809 if (!wl->watchdog_recovery)
810 wl12xx_cmd_stop_fwlog(wl);
95dac04f
IY		 811
812 /* Read the first memory block address */
8b7c0fc3
IY		 813 ret = wlcore_fw_status(wl, wl->fw_status_1, wl->fw_status_2);
814 if (ret < 0)
95dac04f
IY		 815 goto out;
816
1e41213f
IC		 817 addr = le32_to_cpu(wl->fw_status_2->log_start_addr);
818 if (!addr)
95dac04f
IY		 819 goto out;
820
1e41213f
IC		 821 if (wl->conf.fwlog.mode == WL12XX_FWLOG_CONTINUOUS) {
822 offset = sizeof(addr) + sizeof(struct wl1271_rx_descriptor);
823 end_of_log = WLCORE_FW_LOG_END;
824 } else {
825 offset = sizeof(addr);
826 end_of_log = addr;
827 }
828
95dac04f 829 /* Traverse the memory blocks linked list */
95dac04f
IY		 830 do {
831 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
2b800407
IY		 832 ret = wlcore_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
833 false);
834 if (ret < 0)
835 goto out;
95dac04f
IY		 836
837 /*
838 * Memory blocks are linked to one another. The first 4 bytes
839 * of each memory block hold the hardware address of the next
1e41213f
IC		 840 * one. The last memory block points to the first one in
841 * on demand mode and is equal to 0x2000000 in continuous mode.
95dac04f 842 */
4d56ad9c 843 addr = le32_to_cpup((__le32 *)block);
1e41213f
IC		 844 if (!wl12xx_copy_fwlog(wl, block + offset,
845 WL12XX_HW_BLOCK_SIZE - offset))
95dac04f 846 break;
1e41213f 847 } while (addr && (addr != end_of_log));
95dac04f
IY		 848
849 wake_up_interruptible(&wl->fwlog_waitq);
850
851out:
852 kfree(block);
853}
854
6134323f
IY		 855static void wlcore_print_recovery(struct wl1271 *wl)
856{
857 u32 pc = 0;
858 u32 hint_sts = 0;
859 int ret;
860
861 wl1271_info("Hardware recovery in progress. FW ver: %s",
862 wl->chip.fw_ver_str);
863
864 /* change partitions momentarily so we can read the FW pc */
b0f0ad39
IY		 865 ret = wlcore_set_partition(wl, &wl->ptable[PART_BOOT]);
866 if (ret < 0)
867 return;
6134323f
IY		 868
869 ret = wlcore_read_reg(wl, REG_PC_ON_RECOVERY, &pc);
870 if (ret < 0)
871 return;
872
873 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &hint_sts);
874 if (ret < 0)
875 return;
876
877 wl1271_info("pc: 0x%x, hint_sts: 0x%08x", pc, hint_sts);
878
879 wlcore_set_partition(wl, &wl->ptable[PART_WORK]);
880}
881
882
52b0e7a6
JO		 883static void wl1271_recovery_work(struct work_struct *work)
884{
885 struct wl1271 *wl =
886 container_of(work, struct wl1271, recovery_work);
48e93e40 887 struct wl12xx_vif *wlvif;
6e8cd331 888 struct ieee80211_vif *vif;
52b0e7a6
JO		 889
890 mutex_lock(&wl->mutex);
891
4cc53383 892 if (wl->state == WLCORE_STATE_OFF || wl->plt)
f0277434 893 goto out_unlock;
52b0e7a6 894
aafec111
AN		 895 if (!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags)) {
896 wl12xx_read_fwlog_panic(wl);
897 wlcore_print_recovery(wl);
898 }
52b0e7a6 899
e9ba7152
EP		 900 BUG_ON(bug_on_recovery &&
901 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags));
2a5bff09 902
34785be5
AN		 903 if (no_recovery) {
904 wl1271_info("No recovery (chosen on module load). Fw will remain stuck.");
34785be5
AN		 905 goto out_unlock;
906 }
907
b992c682
OK		 908 /*
909 * Advance security sequence number to overcome potential progress
910 * in the firmware during recovery. This doens't hurt if the network is
911 * not encrypted.
912 */
48e93e40 913 wl12xx_for_each_wlvif(wl, wlvif) {
ba8447f6 914 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) ||
53d40d0b 915 test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
48e93e40
EP		 916 wlvif->tx_security_seq +=
917 WL1271_TX_SQN_POST_RECOVERY_PADDING;
918 }
b992c682 919
7dece1c8 920 /* Prevent spurious TX during FW restart */
66396114 921 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_FW_RESTART);
7dece1c8 922
33c2c06c
LC		 923 if (wl->sched_scanning) {
924 ieee80211_sched_scan_stopped(wl->hw);
925 wl->sched_scanning = false;
926 }
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);
5f561f68 1144 cancel_delayed_work_sync(&wl->connection_loss_work);
a454969e
IY		 1145
1146 mutex_lock(&wl->mutex);
1147 wl1271_power_off(wl);
f6fbeccd 1148 wl->flags = 0;
2f18cf7c 1149 wl->sleep_auth = WL1271_PSM_ILLEGAL;
4cc53383 1150 wl->state = WLCORE_STATE_OFF;
3fcdab70 1151 wl->plt = false;
7019c80e 1152 wl->plt_mode = PLT_OFF;
f6fbeccd 1153 wl->rx_counter = 0;
a454969e
IY		 1154 mutex_unlock(&wl->mutex);
1155
4ae3fa87
JO		 1156out:
1157 return ret;
1158}
1159
36323f81
TH		 1160static void wl1271_op_tx(struct ieee80211_hw *hw,
1161 struct ieee80211_tx_control *control,
1162 struct sk_buff *skb)
f5fc0f86
LC		 1163{
1164 struct wl1271 *wl = hw->priv;
a8ab39a4
EP		 1165 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1166 struct ieee80211_vif *vif = info->control.vif;
0f168014 1167 struct wl12xx_vif *wlvif = NULL;
830fb67b 1168 unsigned long flags;
708bb3cf 1169 int q, mapping;
d6a3cc2e 1170 u8 hlid;
f5fc0f86 1171
0f168014
EP		 1172 if (vif)
1173 wlvif = wl12xx_vif_to_data(vif);
1174
708bb3cf
AN		 1175 mapping = skb_get_queue_mapping(skb);
1176 q = wl1271_tx_get_queue(mapping);
b07d4037 1177
36323f81 1178 hlid = wl12xx_tx_get_hlid(wl, wlvif, skb, control->sta);
b07d4037 1179
830fb67b 1180 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1181
66396114
AN		 1182 /*
1183 * drop the packet if the link is invalid or the queue is stopped
1184 * for any reason but watermark. Watermark is a "soft"-stop so we
1185 * allow these packets through.
1186 */
d6a3cc2e 1187 if (hlid == WL12XX_INVALID_LINK_ID ||
66396114
AN		 1188 (wlvif && !test_bit(hlid, wlvif->links_map)) ||
1189 (wlcore_is_queue_stopped(wl, q) &&
1190 !wlcore_is_queue_stopped_by_reason(wl, q,
1191 WLCORE_QUEUE_STOP_REASON_WATERMARK))) {
d6a3cc2e 1192 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d", hlid, q);
5de8eef4 1193 ieee80211_free_txskb(hw, skb);
d6a3cc2e 1194 goto out;
a8c0ddb5 1195 }
f5fc0f86 1196
8ccd16e6
EP		 1197 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d len %d",
1198 hlid, q, skb->len);
d6a3cc2e
EP		 1199 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1200
04b4d69c
AN		 1201 wl->tx_queue_count[q]++;
1202
1203 /*
1204 * The workqueue is slow to process the tx_queue and we need stop
1205 * the queue here, otherwise the queue will get too long.
1206 */
8cdc44aa
AN		 1207 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK &&
1208 !wlcore_is_queue_stopped_by_reason(wl, q,
1209 WLCORE_QUEUE_STOP_REASON_WATERMARK)) {
04b4d69c 1210 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
66396114
AN		 1211 wlcore_stop_queue_locked(wl, q,
1212 WLCORE_QUEUE_STOP_REASON_WATERMARK);
04b4d69c
AN		 1213 }
1214
f5fc0f86
LC		 1215 /*
1216 * The chip specific setup must run before the first TX packet -
1217 * before that, the tx_work will not be initialized!
1218 */
1219
b07d4037
IY		 1220 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1221 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1222 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1223
04216da3 1224out:
b07d4037 1225 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1226}
1227
ae47c45f
SL		 1228int wl1271_tx_dummy_packet(struct wl1271 *wl)
1229{
990f5de7 1230 unsigned long flags;
14623787
AN		 1231 int q;
1232
1233 /* no need to queue a new dummy packet if one is already pending */
1234 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1235 return 0;
1236
1237 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1238
1239 spin_lock_irqsave(&wl->wl_lock, flags);
1240 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1241 wl->tx_queue_count[q]++;
990f5de7
IY		 1242 spin_unlock_irqrestore(&wl->wl_lock, flags);
1243
1244 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1245 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
eb96f841 1246 return wlcore_tx_work_locked(wl);
990f5de7
IY		 1247
1248 /*
1249 * If the FW TX is busy, TX work will be scheduled by the threaded
1250 * interrupt handler function
1251 */
1252 return 0;
1253}
1254
1255/*
1256 * The size of the dummy packet should be at least 1400 bytes. However, in
1257 * order to minimize the number of bus transactions, aligning it to 512 bytes
1258 * boundaries could be beneficial, performance wise
1259 */
1260#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1261
cf27d867 1262static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1263{
1264 struct sk_buff *skb;
ae47c45f 1265 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1266 unsigned int dummy_packet_size;
1267
1268 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1269 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1270
990f5de7 1271 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1272 if (!skb) {
990f5de7
IY		 1273 wl1271_warning("Failed to allocate a dummy packet skb");
1274 return NULL;
ae47c45f
SL		 1275 }
1276
1277 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1278
1279 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1280 memset(hdr, 0, sizeof(*hdr));
1281 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1282 IEEE80211_STYPE_NULLFUNC |
1283 IEEE80211_FCTL_TODS);
ae47c45f 1284
990f5de7 1285 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1286
18b92ffa
LC		 1287 /* Dummy packets require the TID to be management */
1288 skb->priority = WL1271_TID_MGMT;
ae47c45f 1289
990f5de7 1290 /* Initialize all fields that might be used */
86c438f4 1291 skb_set_queue_mapping(skb, 0);
990f5de7 1292 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1293
990f5de7 1294 return skb;
ae47c45f
SL		 1295}
1296
990f5de7 1297
f634a4e7 1298#ifdef CONFIG_PM
22479972
LC		 1299static int
1300wl1271_validate_wowlan_pattern(struct cfg80211_wowlan_trig_pkt_pattern *p)
b95d7cef
ES		 1301{
1302 int num_fields = 0, in_field = 0, fields_size = 0;
1303 int i, pattern_len = 0;
1304
1305 if (!p->mask) {
1306 wl1271_warning("No mask in WoWLAN pattern");
1307 return -EINVAL;
1308 }
1309
1310 /*
1311 * The pattern is broken up into segments of bytes at different offsets
1312 * that need to be checked by the FW filter. Each segment is called
1313 * a field in the FW API. We verify that the total number of fields
1314 * required for this pattern won't exceed FW limits (8)
1315 * as well as the total fields buffer won't exceed the FW limit.
1316 * Note that if there's a pattern which crosses Ethernet/IP header
1317 * boundary a new field is required.
1318 */
1319 for (i = 0; i < p->pattern_len; i++) {
1320 if (test_bit(i, (unsigned long *)p->mask)) {
1321 if (!in_field) {
1322 in_field = 1;
1323 pattern_len = 1;
1324 } else {
1325 if (i == WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1326 num_fields++;
1327 fields_size += pattern_len +
1328 RX_FILTER_FIELD_OVERHEAD;
1329 pattern_len = 1;
1330 } else
1331 pattern_len++;
1332 }
1333 } else {
1334 if (in_field) {
1335 in_field = 0;
1336 fields_size += pattern_len +
1337 RX_FILTER_FIELD_OVERHEAD;
1338 num_fields++;
1339 }
1340 }
1341 }
1342
1343 if (in_field) {
1344 fields_size += pattern_len + RX_FILTER_FIELD_OVERHEAD;
1345 num_fields++;
1346 }
1347
1348 if (num_fields > WL1271_RX_FILTER_MAX_FIELDS) {
1349 wl1271_warning("RX Filter too complex. Too many segments");
1350 return -EINVAL;
1351 }
1352
1353 if (fields_size > WL1271_RX_FILTER_MAX_FIELDS_SIZE) {
1354 wl1271_warning("RX filter pattern is too big");
1355 return -E2BIG;
1356 }
1357
1358 return 0;
1359}
1360
a6eab0c8
ES		 1361struct wl12xx_rx_filter *wl1271_rx_filter_alloc(void)
1362{
1363 return kzalloc(sizeof(struct wl12xx_rx_filter), GFP_KERNEL);
1364}
1365
1366void wl1271_rx_filter_free(struct wl12xx_rx_filter *filter)
1367{
1368 int i;
1369
1370 if (filter == NULL)
1371 return;
1372
1373 for (i = 0; i < filter->num_fields; i++)
1374 kfree(filter->fields[i].pattern);
1375
1376 kfree(filter);
1377}
1378
1379int wl1271_rx_filter_alloc_field(struct wl12xx_rx_filter *filter,
1380 u16 offset, u8 flags,
1381 u8 *pattern, u8 len)
1382{
1383 struct wl12xx_rx_filter_field *field;
1384
1385 if (filter->num_fields == WL1271_RX_FILTER_MAX_FIELDS) {
1386 wl1271_warning("Max fields per RX filter. can't alloc another");
1387 return -EINVAL;
1388 }
1389
1390 field = &filter->fields[filter->num_fields];
1391
1392 field->pattern = kzalloc(len, GFP_KERNEL);
1393 if (!field->pattern) {
1394 wl1271_warning("Failed to allocate RX filter pattern");
1395 return -ENOMEM;
1396 }
1397
1398 filter->num_fields++;
1399
1400 field->offset = cpu_to_le16(offset);
1401 field->flags = flags;
1402 field->len = len;
1403 memcpy(field->pattern, pattern, len);
1404
1405 return 0;
1406}
1407
1408int wl1271_rx_filter_get_fields_size(struct wl12xx_rx_filter *filter)
1409{
1410 int i, fields_size = 0;
1411
1412 for (i = 0; i < filter->num_fields; i++)
1413 fields_size += filter->fields[i].len +
1414 sizeof(struct wl12xx_rx_filter_field) -
1415 sizeof(u8 *);
1416
1417 return fields_size;
1418}
1419
1420void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter,
1421 u8 *buf)
1422{
1423 int i;
1424 struct wl12xx_rx_filter_field *field;
1425
1426 for (i = 0; i < filter->num_fields; i++) {
1427 field = (struct wl12xx_rx_filter_field *)buf;
1428
1429 field->offset = filter->fields[i].offset;
1430 field->flags = filter->fields[i].flags;
1431 field->len = filter->fields[i].len;
1432
1433 memcpy(&field->pattern, filter->fields[i].pattern, field->len);
1434 buf += sizeof(struct wl12xx_rx_filter_field) -
1435 sizeof(u8 *) + field->len;
1436 }
1437}
1438
b95d7cef
ES		 1439/*
1440 * Allocates an RX filter returned through f
1441 * which needs to be freed using rx_filter_free()
1442 */
22479972 1443static int wl1271_convert_wowlan_pattern_to_rx_filter(
b95d7cef
ES		 1444 struct cfg80211_wowlan_trig_pkt_pattern *p,
1445 struct wl12xx_rx_filter **f)
1446{
1447 int i, j, ret = 0;
1448 struct wl12xx_rx_filter *filter;
1449 u16 offset;
1450 u8 flags, len;
1451
1452 filter = wl1271_rx_filter_alloc();
1453 if (!filter) {
1454 wl1271_warning("Failed to alloc rx filter");
1455 ret = -ENOMEM;
1456 goto err;
1457 }
1458
1459 i = 0;
1460 while (i < p->pattern_len) {
1461 if (!test_bit(i, (unsigned long *)p->mask)) {
1462 i++;
1463 continue;
1464 }
1465
1466 for (j = i; j < p->pattern_len; j++) {
1467 if (!test_bit(j, (unsigned long *)p->mask))
1468 break;
1469
1470 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE &&
1471 j >= WL1271_RX_FILTER_ETH_HEADER_SIZE)
1472 break;
1473 }
1474
1475 if (i < WL1271_RX_FILTER_ETH_HEADER_SIZE) {
1476 offset = i;
1477 flags = WL1271_RX_FILTER_FLAG_ETHERNET_HEADER;
1478 } else {
1479 offset = i - WL1271_RX_FILTER_ETH_HEADER_SIZE;
1480 flags = WL1271_RX_FILTER_FLAG_IP_HEADER;
1481 }
1482
1483 len = j - i;
1484
1485 ret = wl1271_rx_filter_alloc_field(filter,
1486 offset,
1487 flags,
1488 &p->pattern[i], len);
1489 if (ret)
1490 goto err;
1491
1492 i = j;
1493 }
1494
1495 filter->action = FILTER_SIGNAL;
1496
1497 *f = filter;
1498 return 0;
1499
1500err:
1501 wl1271_rx_filter_free(filter);
1502 *f = NULL;
1503
1504 return ret;
1505}
1506
1507static int wl1271_configure_wowlan(struct wl1271 *wl,
1508 struct cfg80211_wowlan *wow)
1509{
1510 int i, ret;
1511
1512 if (!wow || wow->any || !wow->n_patterns) {
c439a1ca
AN		 1513 ret = wl1271_acx_default_rx_filter_enable(wl, 0,
1514 FILTER_SIGNAL);
1515 if (ret)
1516 goto out;
1517
1518 ret = wl1271_rx_filter_clear_all(wl);
1519 if (ret)
1520 goto out;
1521
b95d7cef
ES		 1522 return 0;
1523 }
1524
1525 if (WARN_ON(wow->n_patterns > WL1271_MAX_RX_FILTERS))
1526 return -EINVAL;
1527
1528 /* Validate all incoming patterns before clearing current FW state */
1529 for (i = 0; i < wow->n_patterns; i++) {
1530 ret = wl1271_validate_wowlan_pattern(&wow->patterns[i]);
1531 if (ret) {
1532 wl1271_warning("Bad wowlan pattern %d", i);
1533 return ret;
1534 }
1535 }
1536
c439a1ca
AN		 1537 ret = wl1271_acx_default_rx_filter_enable(wl, 0, FILTER_SIGNAL);
1538 if (ret)
1539 goto out;
1540
1541 ret = wl1271_rx_filter_clear_all(wl);
1542 if (ret)
1543 goto out;
b95d7cef
ES		 1544
1545 /* Translate WoWLAN patterns into filters */
1546 for (i = 0; i < wow->n_patterns; i++) {
1547 struct cfg80211_wowlan_trig_pkt_pattern *p;
1548 struct wl12xx_rx_filter *filter = NULL;
1549
1550 p = &wow->patterns[i];
1551
1552 ret = wl1271_convert_wowlan_pattern_to_rx_filter(p, &filter);
1553 if (ret) {
1554 wl1271_warning("Failed to create an RX filter from "
1555 "wowlan pattern %d", i);
1556 goto out;
1557 }
1558
1559 ret = wl1271_rx_filter_enable(wl, i, 1, filter);
1560
1561 wl1271_rx_filter_free(filter);
1562 if (ret)
1563 goto out;
1564 }
1565
1566 ret = wl1271_acx_default_rx_filter_enable(wl, 1, FILTER_DROP);
1567
1568out:
1569 return ret;
1570}
1571
dae728fe 1572static int wl1271_configure_suspend_sta(struct wl1271 *wl,
b95d7cef
ES		 1573 struct wl12xx_vif *wlvif,
1574 struct cfg80211_wowlan *wow)
dae728fe
ES		 1575{
1576 int ret = 0;
1577
dae728fe 1578 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
c56dbd57 1579 goto out;
dae728fe
ES		 1580
1581 ret = wl1271_ps_elp_wakeup(wl);
1582 if (ret < 0)
c56dbd57 1583 goto out;
dae728fe 1584
c439a1ca
AN		 1585 ret = wl1271_configure_wowlan(wl, wow);
1586 if (ret < 0)
1587 goto out_sleep;
1588
11bc97eb
ES		 1589 if ((wl->conf.conn.suspend_wake_up_event ==
1590 wl->conf.conn.wake_up_event) &&
1591 (wl->conf.conn.suspend_listen_interval ==
1592 wl->conf.conn.listen_interval))
1593 goto out_sleep;
1594
dae728fe
ES		 1595 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1596 wl->conf.conn.suspend_wake_up_event,
1597 wl->conf.conn.suspend_listen_interval);
1598
1599 if (ret < 0)
1600 wl1271_error("suspend: set wake up conditions failed: %d", ret);
1601
c439a1ca 1602out_sleep:
dae728fe 1603 wl1271_ps_elp_sleep(wl);
c56dbd57 1604out:
dae728fe
ES		 1605 return ret;
1606
1607}
9439064c 1608
0603d891
EP		 1609static int wl1271_configure_suspend_ap(struct wl1271 *wl,
1610 struct wl12xx_vif *wlvif)
8a7cf3fe 1611{
e85d1629 1612 int ret = 0;
8a7cf3fe 1613
53d40d0b 1614 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags))
c56dbd57 1615 goto out;
e85d1629 1616
8a7cf3fe
EP		 1617 ret = wl1271_ps_elp_wakeup(wl);
1618 if (ret < 0)
c56dbd57 1619 goto out;
8a7cf3fe 1620
0603d891 1621 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true);
8a7cf3fe
EP		 1622
1623 wl1271_ps_elp_sleep(wl);
c56dbd57 1624out:
8a7cf3fe
EP		 1625 return ret;
1626
1627}
1628
d2d66c56 1629static int wl1271_configure_suspend(struct wl1271 *wl,
b95d7cef
ES		 1630 struct wl12xx_vif *wlvif,
1631 struct cfg80211_wowlan *wow)
8a7cf3fe 1632{
dae728fe 1633 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
b95d7cef 1634 return wl1271_configure_suspend_sta(wl, wlvif, wow);
536129c8 1635 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
0603d891 1636 return wl1271_configure_suspend_ap(wl, wlvif);
8a7cf3fe
EP		 1637 return 0;
1638}
1639
d2d66c56
EP		 1640static void wl1271_configure_resume(struct wl1271 *wl,
1641 struct wl12xx_vif *wlvif)
9439064c 1642{
dae728fe 1643 int ret = 0;
536129c8 1644 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
dae728fe 1645 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
9439064c 1646
dae728fe 1647 if ((!is_ap) && (!is_sta))
9439064c
EP		 1648 return;
1649
d49524d3
EP		 1650 if (is_sta && !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
1651 return;
1652
9439064c
EP		 1653 ret = wl1271_ps_elp_wakeup(wl);
1654 if (ret < 0)
c56dbd57 1655 return;
9439064c 1656
dae728fe 1657 if (is_sta) {
b95d7cef
ES		 1658 wl1271_configure_wowlan(wl, NULL);
1659
11bc97eb
ES		 1660 if ((wl->conf.conn.suspend_wake_up_event ==
1661 wl->conf.conn.wake_up_event) &&
1662 (wl->conf.conn.suspend_listen_interval ==
1663 wl->conf.conn.listen_interval))
1664 goto out_sleep;
1665
dae728fe
ES		 1666 ret = wl1271_acx_wake_up_conditions(wl, wlvif,
1667 wl->conf.conn.wake_up_event,
1668 wl->conf.conn.listen_interval);
1669
1670 if (ret < 0)
1671 wl1271_error("resume: wake up conditions failed: %d",
1672 ret);
1673
1674 } else if (is_ap) {
1675 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, false);
1676 }
9439064c 1677
11bc97eb 1678out_sleep:
9439064c 1679 wl1271_ps_elp_sleep(wl);
9439064c
EP		 1680}
1681
402e4861
EP		 1682static int wl1271_op_suspend(struct ieee80211_hw *hw,
1683 struct cfg80211_wowlan *wow)
1684{
1685 struct wl1271 *wl = hw->priv;
6e8cd331 1686 struct wl12xx_vif *wlvif;
4a859df8
EP		 1687 int ret;
1688
402e4861 1689 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
b95d7cef 1690 WARN_ON(!wow);
f44e5868 1691
96caded8
AN		 1692 /* we want to perform the recovery before suspending */
1693 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
1694 wl1271_warning("postponing suspend to perform recovery");
1695 return -EBUSY;
1696 }
1697
b9239b66
AN		 1698 wl1271_tx_flush(wl);
1699
c56dbd57 1700 mutex_lock(&wl->mutex);
4a859df8 1701 wl->wow_enabled = true;
6e8cd331 1702 wl12xx_for_each_wlvif(wl, wlvif) {
b95d7cef 1703 ret = wl1271_configure_suspend(wl, wlvif, wow);
6e8cd331 1704 if (ret < 0) {
cd840f6a 1705 mutex_unlock(&wl->mutex);
6e8cd331
EP		 1706 wl1271_warning("couldn't prepare device to suspend");
1707 return ret;
1708 }
4a859df8 1709 }
c56dbd57 1710 mutex_unlock(&wl->mutex);
4a859df8
EP		 1711 /* flush any remaining work */
1712 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1713
4a859df8
EP		 1714 /*
1715 * disable and re-enable interrupts in order to flush
1716 * the threaded_irq
1717 */
dd5512eb 1718 wlcore_disable_interrupts(wl);
4a859df8
EP		 1719
1720 /*
1721 * set suspended flag to avoid triggering a new threaded_irq
1722 * work. no need for spinlock as interrupts are disabled.
1723 */
1724 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1725
dd5512eb 1726 wlcore_enable_interrupts(wl);
4a859df8 1727 flush_work(&wl->tx_work);
4a859df8 1728 flush_delayed_work(&wl->elp_work);
f44e5868 1729
402e4861
EP		 1730 return 0;
1731}
1732
1733static int wl1271_op_resume(struct ieee80211_hw *hw)
1734{
1735 struct wl1271 *wl = hw->priv;
6e8cd331 1736 struct wl12xx_vif *wlvif;
4a859df8 1737 unsigned long flags;
ea0a3cf9 1738 bool run_irq_work = false, pending_recovery;
725b8277 1739 int ret;
4a859df8 1740
402e4861
EP		 1741 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1742 wl->wow_enabled);
4a859df8 1743 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1744
1745 /*
1746 * re-enable irq_work enqueuing, and call irq_work directly if
1747 * there is a pending work.
1748 */
4a859df8
EP		 1749 spin_lock_irqsave(&wl->wl_lock, flags);
1750 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1751 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1752 run_irq_work = true;
1753 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1754
725b8277
AN		 1755 mutex_lock(&wl->mutex);
1756
ea0a3cf9
AN		 1757 /* test the recovery flag before calling any SDIO functions */
1758 pending_recovery = test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1759 &wl->flags);
1760
4a859df8
EP		 1761 if (run_irq_work) {
1762 wl1271_debug(DEBUG_MAC80211,
1763 "run postponed irq_work directly");
ea0a3cf9
AN		 1764
1765 /* don't talk to the HW if recovery is pending */
725b8277
AN		 1766 if (!pending_recovery) {
1767 ret = wlcore_irq_locked(wl);
1768 if (ret)
1769 wl12xx_queue_recovery_work(wl);
1770 }
ea0a3cf9 1771
dd5512eb 1772 wlcore_enable_interrupts(wl);
f44e5868 1773 }
c56dbd57 1774
ea0a3cf9
AN		 1775 if (pending_recovery) {
1776 wl1271_warning("queuing forgotten recovery on resume");
1777 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1778 goto out;
1779 }
1780
6e8cd331
EP		 1781 wl12xx_for_each_wlvif(wl, wlvif) {
1782 wl1271_configure_resume(wl, wlvif);
1783 }
ea0a3cf9
AN		 1784
1785out:
ff91afc9 1786 wl->wow_enabled = false;
c56dbd57 1787 mutex_unlock(&wl->mutex);
f44e5868 1788
402e4861
EP		 1789 return 0;
1790}
f634a4e7 1791#endif
402e4861 1792
f5fc0f86 1793static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1794{
1795 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1796
1797 /*
1798 * We have to delay the booting of the hardware because
1799 * we need to know the local MAC address before downloading and
1800 * initializing the firmware. The MAC address cannot be changed
1801 * after boot, and without the proper MAC address, the firmware
1802 * will not function properly.
1803 *
1804 * The MAC address is first known when the corresponding interface
1805 * is added. That is where we will initialize the hardware.
1806 */
1807
d18da7fc 1808 return 0;
1b72aecd
JO		 1809}
1810
c24ec83b 1811static void wlcore_op_stop_locked(struct wl1271 *wl)
1b72aecd 1812{
baf6277a
EP		 1813 int i;
1814
4cc53383 1815 if (wl->state == WLCORE_STATE_OFF) {
b666bb7f
IY		 1816 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS,
1817 &wl->flags))
1818 wlcore_enable_interrupts(wl);
1819
10c8cd01
EP		 1820 return;
1821 }
46b0cc9f 1822
baf6277a
EP		 1823 /*
1824 * this must be before the cancel_work calls below, so that the work
1825 * functions don't perform further work.
1826 */
4cc53383 1827 wl->state = WLCORE_STATE_OFF;
c24ec83b
IY		 1828
1829 /*
1830 * Use the nosync variant to disable interrupts, so the mutex could be
1831 * held while doing so without deadlocking.
1832 */
1833 wlcore_disable_interrupts_nosync(wl);
1834
10c8cd01
EP		 1835 mutex_unlock(&wl->mutex);
1836
c24ec83b 1837 wlcore_synchronize_interrupts(wl);
6dbc5fc2
EP		 1838 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1839 cancel_work_sync(&wl->recovery_work);
baf6277a
EP		 1840 wl1271_flush_deferred_work(wl);
1841 cancel_delayed_work_sync(&wl->scan_complete_work);
1842 cancel_work_sync(&wl->netstack_work);
1843 cancel_work_sync(&wl->tx_work);
baf6277a 1844 cancel_delayed_work_sync(&wl->elp_work);
55df5afb 1845 cancel_delayed_work_sync(&wl->tx_watchdog_work);
5f561f68 1846 cancel_delayed_work_sync(&wl->connection_loss_work);
baf6277a
EP		 1847
1848 /* let's notify MAC80211 about the remaining pending TX frames */
66396114 1849 wl12xx_tx_reset(wl);
baf6277a
EP		 1850 mutex_lock(&wl->mutex);
1851
1852 wl1271_power_off(wl);
b666bb7f
IY		 1853 /*
1854 * In case a recovery was scheduled, interrupts were disabled to avoid
1855 * an interrupt storm. Now that the power is down, it is safe to
1856 * re-enable interrupts to balance the disable depth
1857 */
1858 if (test_and_clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1859 wlcore_enable_interrupts(wl);
baf6277a
EP		 1860
1861 wl->band = IEEE80211_BAND_2GHZ;
1862
1863 wl->rx_counter = 0;
1864 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
83d08d3f 1865 wl->channel_type = NL80211_CHAN_NO_HT;
baf6277a
EP		 1866 wl->tx_blocks_available = 0;
1867 wl->tx_allocated_blocks = 0;
1868 wl->tx_results_count = 0;
1869 wl->tx_packets_count = 0;
1870 wl->time_offset = 0;
baf6277a
EP		 1871 wl->ap_fw_ps_map = 0;
1872 wl->ap_ps_map = 0;
1873 wl->sched_scanning = false;
2f18cf7c 1874 wl->sleep_auth = WL1271_PSM_ILLEGAL;
baf6277a
EP		 1875 memset(wl->roles_map, 0, sizeof(wl->roles_map));
1876 memset(wl->links_map, 0, sizeof(wl->links_map));
1877 memset(wl->roc_map, 0, sizeof(wl->roc_map));
1878 wl->active_sta_count = 0;
1879
1880 /* The system link is always allocated */
1881 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
1882
1883 /*
1884 * this is performed after the cancel_work calls and the associated
1885 * mutex_lock, so that wl1271_op_add_interface does not accidentally
1886 * get executed before all these vars have been reset.
1887 */
1888 wl->flags = 0;
1889
1890 wl->tx_blocks_freed = 0;
1891
1892 for (i = 0; i < NUM_TX_QUEUES; i++) {
1893 wl->tx_pkts_freed[i] = 0;
1894 wl->tx_allocated_pkts[i] = 0;
1895 }
1896
1897 wl1271_debugfs_reset(wl);
1898
0afd04e5
AN		 1899 kfree(wl->fw_status_1);
1900 wl->fw_status_1 = NULL;
1901 wl->fw_status_2 = NULL;
baf6277a
EP		 1902 kfree(wl->tx_res_if);
1903 wl->tx_res_if = NULL;
1904 kfree(wl->target_mem_map);
1905 wl->target_mem_map = NULL;
c24ec83b
IY		 1906}
1907
1908static void wlcore_op_stop(struct ieee80211_hw *hw)
1909{
1910 struct wl1271 *wl = hw->priv;
1911
1912 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1913
1914 mutex_lock(&wl->mutex);
1915
1916 wlcore_op_stop_locked(wl);
baf6277a
EP		 1917
1918 mutex_unlock(&wl->mutex);
1b72aecd
JO		 1919}
1920
e5a359f8
EP		 1921static int wl12xx_allocate_rate_policy(struct wl1271 *wl, u8 *idx)
1922{
1923 u8 policy = find_first_zero_bit(wl->rate_policies_map,
1924 WL12XX_MAX_RATE_POLICIES);
1925 if (policy >= WL12XX_MAX_RATE_POLICIES)
1926 return -EBUSY;
1927
1928 __set_bit(policy, wl->rate_policies_map);
1929 *idx = policy;
1930 return 0;
1931}
1932
1933static void wl12xx_free_rate_policy(struct wl1271 *wl, u8 *idx)
1934{
1935 if (WARN_ON(*idx >= WL12XX_MAX_RATE_POLICIES))
1936 return;
1937
1938 __clear_bit(*idx, wl->rate_policies_map);
1939 *idx = WL12XX_MAX_RATE_POLICIES;
1940}
1941
001e39a8
EP		 1942static int wlcore_allocate_klv_template(struct wl1271 *wl, u8 *idx)
1943{
1944 u8 policy = find_first_zero_bit(wl->klv_templates_map,
1945 WLCORE_MAX_KLV_TEMPLATES);
1946 if (policy >= WLCORE_MAX_KLV_TEMPLATES)
1947 return -EBUSY;
1948
1949 __set_bit(policy, wl->klv_templates_map);
1950 *idx = policy;
1951 return 0;
1952}
1953
1954static void wlcore_free_klv_template(struct wl1271 *wl, u8 *idx)
1955{
1956 if (WARN_ON(*idx >= WLCORE_MAX_KLV_TEMPLATES))
1957 return;
1958
1959 __clear_bit(*idx, wl->klv_templates_map);
1960 *idx = WLCORE_MAX_KLV_TEMPLATES;
1961}
1962
536129c8 1963static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
b78b47eb 1964{
536129c8 1965 switch (wlvif->bss_type) {
b78b47eb 1966 case BSS_TYPE_AP_BSS:
fb0e707c 1967 if (wlvif->p2p)
045c745f
EP		 1968 return WL1271_ROLE_P2P_GO;
1969 else
1970 return WL1271_ROLE_AP;
b78b47eb
EP		 1971
1972 case BSS_TYPE_STA_BSS:
fb0e707c 1973 if (wlvif->p2p)
045c745f
EP		 1974 return WL1271_ROLE_P2P_CL;
1975 else
1976 return WL1271_ROLE_STA;
b78b47eb 1977
227e81e1
EP		 1978 case BSS_TYPE_IBSS:
1979 return WL1271_ROLE_IBSS;
1980
b78b47eb 1981 default:
536129c8 1982 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
b78b47eb
EP		 1983 }
1984 return WL12XX_INVALID_ROLE_TYPE;
1985}
1986
83587505 1987static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
87fbcb0f 1988{
e936bbe0 1989 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e5a359f8 1990 int i;
e936bbe0 1991
48e93e40
EP		 1992 /* clear everything but the persistent data */
1993 memset(wlvif, 0, offsetof(struct wl12xx_vif, persistent));
e936bbe0
EP		 1994
1995 switch (ieee80211_vif_type_p2p(vif)) {
1996 case NL80211_IFTYPE_P2P_CLIENT:
1997 wlvif->p2p = 1;
1998 /* fall-through */
1999 case NL80211_IFTYPE_STATION:
2000 wlvif->bss_type = BSS_TYPE_STA_BSS;
2001 break;
2002 case NL80211_IFTYPE_ADHOC:
2003 wlvif->bss_type = BSS_TYPE_IBSS;
2004 break;
2005 case NL80211_IFTYPE_P2P_GO:
2006 wlvif->p2p = 1;
2007 /* fall-through */
2008 case NL80211_IFTYPE_AP:
2009 wlvif->bss_type = BSS_TYPE_AP_BSS;
2010 break;
2011 default:
2012 wlvif->bss_type = MAX_BSS_TYPE;
2013 return -EOPNOTSUPP;
2014 }
2015
0603d891 2016 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2017 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
afaf8bdb 2018 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
a8ab39a4 2019
e936bbe0
EP		 2020 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2021 wlvif->bss_type == BSS_TYPE_IBSS) {
2022 /* init sta/ibss data */
2023 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2024 wl12xx_allocate_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2025 wl12xx_allocate_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2026 wl12xx_allocate_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
001e39a8 2027 wlcore_allocate_klv_template(wl, &wlvif->sta.klv_template_id);
15e05bc0
LC		 2028 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
2029 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
2030 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
e936bbe0
EP		 2031 } else {
2032 /* init ap data */
2033 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2034 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2035 wl12xx_allocate_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2036 wl12xx_allocate_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2037 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2038 wl12xx_allocate_rate_policy(wl,
2039 &wlvif->ap.ucast_rate_idx[i]);
15e05bc0
LC		 2040 wlvif->basic_rate_set = CONF_TX_AP_ENABLED_RATES;
2041 /*
2042 * TODO: check if basic_rate shouldn't be
2043 * wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2044 * instead (the same thing for STA above).
2045 */
2046 wlvif->basic_rate = CONF_TX_AP_ENABLED_RATES;
2047 /* TODO: this seems to be used only for STA, check it */
2048 wlvif->rate_set = CONF_TX_AP_ENABLED_RATES;
e936bbe0 2049 }
a8ab39a4 2050
83587505
EP		 2051 wlvif->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2052 wlvif->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
6a899796
EP		 2053 wlvif->beacon_int = WL1271_DEFAULT_BEACON_INT;
2054
1b92f15e
EP		 2055 /*
2056 * mac80211 configures some values globally, while we treat them
2057 * per-interface. thus, on init, we have to copy them from wl
2058 */
2059 wlvif->band = wl->band;
61f845f4 2060 wlvif->channel = wl->channel;
6bd65029 2061 wlvif->power_level = wl->power_level;
83d08d3f 2062 wlvif->channel_type = wl->channel_type;
1b92f15e 2063
9eb599e9
EP		 2064 INIT_WORK(&wlvif->rx_streaming_enable_work,
2065 wl1271_rx_streaming_enable_work);
2066 INIT_WORK(&wlvif->rx_streaming_disable_work,
2067 wl1271_rx_streaming_disable_work);
87627214 2068 INIT_LIST_HEAD(&wlvif->list);
252efa4f 2069
9eb599e9
EP		 2070 setup_timer(&wlvif->rx_streaming_timer, wl1271_rx_streaming_timer,
2071 (unsigned long) wlvif);
e936bbe0 2072 return 0;
87fbcb0f
EP		 2073}
2074
1d095475 2075static bool wl12xx_init_fw(struct wl1271 *wl)
f5fc0f86 2076{
9ccd9217 2077 int retries = WL1271_BOOT_RETRIES;
71125abd 2078 bool booted = false;
1d095475
EP		 2079 struct wiphy *wiphy = wl->hw->wiphy;
2080 int ret;
f5fc0f86 2081
9ccd9217
JO		 2082 while (retries) {
2083 retries--;
3fcdab70 2084 ret = wl12xx_chip_wakeup(wl, false);
9ccd9217
JO		 2085 if (ret < 0)
2086 goto power_off;
f5fc0f86 2087
dd5512eb 2088 ret = wl->ops->boot(wl);
9ccd9217
JO		 2089 if (ret < 0)
2090 goto power_off;
f5fc0f86 2091
92c77c73
EP		 2092 ret = wl1271_hw_init(wl);
2093 if (ret < 0)
2094 goto irq_disable;
2095
71125abd
EP		 2096 booted = true;
2097 break;
eb5b28d0 2098
9ccd9217 2099irq_disable:
9ccd9217
JO		 2100 mutex_unlock(&wl->mutex);
2101 /* Unlocking the mutex in the middle of handling is
2102 inherently unsafe. In this case we deem it safe to do,
2103 because we need to let any possibly pending IRQ out of
4cc53383 2104 the system (and while we are WLCORE_STATE_OFF the IRQ
9ccd9217
JO		 2105 work function will not do anything.) Also, any other
2106 possible concurrent operations will fail due to the
2107 current state, hence the wl1271 struct should be safe. */
dd5512eb 2108 wlcore_disable_interrupts(wl);
a620865e
IY		 2109 wl1271_flush_deferred_work(wl);
2110 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 2111 mutex_lock(&wl->mutex);
2112power_off:
2113 wl1271_power_off(wl);
2114 }
eb5b28d0 2115
71125abd
EP		 2116 if (!booted) {
2117 wl1271_error("firmware boot failed despite %d retries",
2118 WL1271_BOOT_RETRIES);
2119 goto out;
2120 }
2121
4b7fac77 2122 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 2123
2124 /* update hw/fw version info in wiphy struct */
2125 wiphy->hw_version = wl->chip.id;
4b7fac77 2126 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 2127 sizeof(wiphy->fw_version));
2128
fb6a6819
LC		 2129 /*
2130 * Now we know if 11a is supported (info from the NVS), so disable
2131 * 11a channels if not supported
2132 */
2133 if (!wl->enable_11a)
2134 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2135
2136 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2137 wl->enable_11a ? "" : "not ");
2138
4cc53383 2139 wl->state = WLCORE_STATE_ON;
1d095475
EP		 2140out:
2141 return booted;
2142}
2143
92e712da
EP		 2144static bool wl12xx_dev_role_started(struct wl12xx_vif *wlvif)
2145{
2146 return wlvif->dev_hlid != WL12XX_INVALID_LINK_ID;
2147}
2148
4549d09c
EP		 2149/*
2150 * Check whether a fw switch (i.e. moving from one loaded
2151 * fw to another) is needed. This function is also responsible
2152 * for updating wl->last_vif_count, so it must be called before
2153 * loading a non-plt fw (so the correct fw (single-role/multi-role)
2154 * will be used).
2155 */
2156static bool wl12xx_need_fw_change(struct wl1271 *wl,
2157 struct vif_counter_data vif_counter_data,
2158 bool add)
2159{
2160 enum wl12xx_fw_type current_fw = wl->fw_type;
2161 u8 vif_count = vif_counter_data.counter;
2162
2163 if (test_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags))
2164 return false;
2165
2166 /* increase the vif count if this is a new vif */
2167 if (add && !vif_counter_data.cur_vif_running)
2168 vif_count++;
2169
2170 wl->last_vif_count = vif_count;
2171
2172 /* no need for fw change if the device is OFF */
4cc53383 2173 if (wl->state == WLCORE_STATE_OFF)
4549d09c
EP		 2174 return false;
2175
9b1a0a77
EP		 2176 /* no need for fw change if a single fw is used */
2177 if (!wl->mr_fw_name)
2178 return false;
2179
4549d09c
EP		 2180 if (vif_count > 1 && current_fw == WL12XX_FW_TYPE_NORMAL)
2181 return true;
2182 if (vif_count <= 1 && current_fw == WL12XX_FW_TYPE_MULTI)
2183 return true;
2184
2185 return false;
2186}
2187
3dee4393
EP		 2188/*
2189 * Enter "forced psm". Make sure the sta is in psm against the ap,
2190 * to make the fw switch a bit more disconnection-persistent.
2191 */
2192static void wl12xx_force_active_psm(struct wl1271 *wl)
2193{
2194 struct wl12xx_vif *wlvif;
2195
2196 wl12xx_for_each_wlvif_sta(wl, wlvif) {
2197 wl1271_ps_set_mode(wl, wlvif, STATION_POWER_SAVE_MODE);
2198 }
2199}
2200
1d095475
EP		 2201static int wl1271_op_add_interface(struct ieee80211_hw *hw,
2202 struct ieee80211_vif *vif)
2203{
2204 struct wl1271 *wl = hw->priv;
2205 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4549d09c 2206 struct vif_counter_data vif_count;
1d095475
EP		 2207 int ret = 0;
2208 u8 role_type;
2209 bool booted = false;
2210
ea086359
JB		 2211 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
2212 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
c1288b12 2213
1d095475
EP		 2214 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
2215 ieee80211_vif_type_p2p(vif), vif->addr);
2216
4549d09c
EP		 2217 wl12xx_get_vif_count(hw, vif, &vif_count);
2218
1d095475 2219 mutex_lock(&wl->mutex);
f750c820
EP		 2220 ret = wl1271_ps_elp_wakeup(wl);
2221 if (ret < 0)
2222 goto out_unlock;
2223
1d095475
EP		 2224 /*
2225 * in some very corner case HW recovery scenarios its possible to
2226 * get here before __wl1271_op_remove_interface is complete, so
2227 * opt out if that is the case.
2228 */
10c8cd01
EP		 2229 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) ||
2230 test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)) {
1d095475
EP		 2231 ret = -EBUSY;
2232 goto out;
2233 }
2234
3fcdab70 2235
83587505 2236 ret = wl12xx_init_vif_data(wl, vif);
1d095475
EP		 2237 if (ret < 0)
2238 goto out;
2239
2240 wlvif->wl = wl;
2241 role_type = wl12xx_get_role_type(wl, wlvif);
2242 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
2243 ret = -EINVAL;
2244 goto out;
2245 }
2246
4549d09c 2247 if (wl12xx_need_fw_change(wl, vif_count, true)) {
3dee4393 2248 wl12xx_force_active_psm(wl);
e9ba7152 2249 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
4549d09c
EP		 2250 mutex_unlock(&wl->mutex);
2251 wl1271_recovery_work(&wl->recovery_work);
2252 return 0;
2253 }
2254
1d095475
EP		 2255 /*
2256 * TODO: after the nvs issue will be solved, move this block
2257 * to start(), and make sure here the driver is ON.
2258 */
4cc53383 2259 if (wl->state == WLCORE_STATE_OFF) {
1d095475
EP		 2260 /*
2261 * we still need this in order to configure the fw
2262 * while uploading the nvs
2263 */
5e037e74 2264 memcpy(wl->addresses[0].addr, vif->addr, ETH_ALEN);
1d095475
EP		 2265
2266 booted = wl12xx_init_fw(wl);
2267 if (!booted) {
2268 ret = -EINVAL;
2269 goto out;
2270 }
2271 }
2272
1d095475
EP		 2273 ret = wl12xx_cmd_role_enable(wl, vif->addr,
2274 role_type, &wlvif->role_id);
2275 if (ret < 0)
2276 goto out;
2277
2278 ret = wl1271_init_vif_specific(wl, vif);
2279 if (ret < 0)
2280 goto out;
2281
87627214 2282 list_add(&wlvif->list, &wl->wlvif_list);
10c8cd01 2283 set_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags);
a4e4130d
EP		 2284
2285 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
2286 wl->ap_count++;
2287 else
2288 wl->sta_count++;
eb5b28d0 2289out:
f750c820
EP		 2290 wl1271_ps_elp_sleep(wl);
2291out_unlock:
f5fc0f86
LC		 2292 mutex_unlock(&wl->mutex);
2293
2294 return ret;
2295}
2296
7dece1c8 2297static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 2298 struct ieee80211_vif *vif,
7dece1c8 2299 bool reset_tx_queues)
f5fc0f86 2300{
536129c8 2301 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e5a359f8 2302 int i, ret;
2f18cf7c 2303 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
f5fc0f86 2304
1b72aecd 2305 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2306
10c8cd01
EP		 2307 if (!test_and_clear_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2308 return;
2309
13026dec 2310 /* because of hardware recovery, we may get here twice */
4cc53383 2311 if (wl->state == WLCORE_STATE_OFF)
13026dec
JO		 2312 return;
2313
1b72aecd 2314 wl1271_info("down");
f5fc0f86 2315
baf6277a
EP		 2316 if (wl->scan.state != WL1271_SCAN_STATE_IDLE &&
2317 wl->scan_vif == vif) {
55df5afb
AN		 2318 /*
2319 * Rearm the tx watchdog just before idling scan. This
2320 * prevents just-finished scans from triggering the watchdog
2321 */
2322 wl12xx_rearm_tx_watchdog_locked(wl);
2323
08688d6b 2324 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2325 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2326 wl->scan_vif = NULL;
b739a42c 2327 wl->scan.req = NULL;
76a029fb 2328 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2329 }
2330
b78b47eb
EP		 2331 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2332 /* disable active roles */
2333 ret = wl1271_ps_elp_wakeup(wl);
2334 if (ret < 0)
2335 goto deinit;
2336
b890f4c3
EP		 2337 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2338 wlvif->bss_type == BSS_TYPE_IBSS) {
2339 if (wl12xx_dev_role_started(wlvif))
2340 wl12xx_stop_dev(wl, wlvif);
04e8079c
EP		 2341 }
2342
0603d891 2343 ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
b78b47eb
EP		 2344 if (ret < 0)
2345 goto deinit;
2346
2347 wl1271_ps_elp_sleep(wl);
2348 }
2349deinit:
e51ae9be 2350 /* clear all hlids (except system_hlid) */
afaf8bdb 2351 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
e5a359f8
EP		 2352
2353 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2354 wlvif->bss_type == BSS_TYPE_IBSS) {
2355 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
2356 wl12xx_free_rate_policy(wl, &wlvif->sta.basic_rate_idx);
2357 wl12xx_free_rate_policy(wl, &wlvif->sta.ap_rate_idx);
2358 wl12xx_free_rate_policy(wl, &wlvif->sta.p2p_rate_idx);
001e39a8 2359 wlcore_free_klv_template(wl, &wlvif->sta.klv_template_id);
e5a359f8
EP		 2360 } else {
2361 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2362 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
2363 wl12xx_free_rate_policy(wl, &wlvif->ap.mgmt_rate_idx);
2364 wl12xx_free_rate_policy(wl, &wlvif->ap.bcast_rate_idx);
2365 for (i = 0; i < CONF_TX_MAX_AC_COUNT; i++)
2366 wl12xx_free_rate_policy(wl,
2367 &wlvif->ap.ucast_rate_idx[i]);
830be7e0 2368 wl1271_free_ap_keys(wl, wlvif);
e5a359f8 2369 }
b78b47eb 2370
3eba4a0e
ES		 2371 dev_kfree_skb(wlvif->probereq);
2372 wlvif->probereq = NULL;
d6a3cc2e 2373 wl12xx_tx_reset_wlvif(wl, wlvif);
e4120df9
EP		 2374 if (wl->last_wlvif == wlvif)
2375 wl->last_wlvif = NULL;
87627214 2376 list_del(&wlvif->list);
c7ffb902 2377 memset(wlvif->ap.sta_hlid_map, 0, sizeof(wlvif->ap.sta_hlid_map));
0603d891 2378 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2379 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
d6e19d13 2380
2f18cf7c 2381 if (is_ap)
a4e4130d
EP		 2382 wl->ap_count--;
2383 else
2384 wl->sta_count--;
2385
42066f9a
AN		 2386 /*
2387 * Last AP, have more stations. Configure sleep auth according to STA.
2388 * Don't do thin on unintended recovery.
2389 */
2390 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags) &&
2391 !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags))
2392 goto unlock;
2393
2f18cf7c
AN		 2394 if (wl->ap_count == 0 && is_ap && wl->sta_count) {
2395 u8 sta_auth = wl->conf.conn.sta_sleep_auth;
2396 /* Configure for power according to debugfs */
2397 if (sta_auth != WL1271_PSM_ILLEGAL)
2398 wl1271_acx_sleep_auth(wl, sta_auth);
2399 /* Configure for power always on */
2400 else if (wl->quirks & WLCORE_QUIRK_NO_ELP)
2401 wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
2402 /* Configure for ELP power saving */
2403 else
2404 wl1271_acx_sleep_auth(wl, WL1271_PSM_ELP);
2405 }
2406
42066f9a 2407unlock:
baf6277a 2408 mutex_unlock(&wl->mutex);
d6bf9ada 2409
9eb599e9
EP		 2410 del_timer_sync(&wlvif->rx_streaming_timer);
2411 cancel_work_sync(&wlvif->rx_streaming_enable_work);
2412 cancel_work_sync(&wlvif->rx_streaming_disable_work);
bd9dc49c 2413
baf6277a 2414 mutex_lock(&wl->mutex);
52a2a375 2415}
bd9dc49c 2416
52a2a375
JO		 2417static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2418 struct ieee80211_vif *vif)
2419{
2420 struct wl1271 *wl = hw->priv;
10c8cd01 2421 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
6e8cd331 2422 struct wl12xx_vif *iter;
4549d09c 2423 struct vif_counter_data vif_count;
52a2a375 2424
4549d09c 2425 wl12xx_get_vif_count(hw, vif, &vif_count);
52a2a375 2426 mutex_lock(&wl->mutex);
10c8cd01 2427
4cc53383 2428 if (wl->state == WLCORE_STATE_OFF ||
10c8cd01
EP		 2429 !test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
2430 goto out;
2431
67353299
JO		 2432 /*
2433 * wl->vif can be null here if someone shuts down the interface
2434 * just when hardware recovery has been started.
2435 */
6e8cd331
EP		 2436 wl12xx_for_each_wlvif(wl, iter) {
2437 if (iter != wlvif)
2438 continue;
2439
536129c8 2440 __wl1271_op_remove_interface(wl, vif, true);
6e8cd331 2441 break;
67353299 2442 }
6e8cd331 2443 WARN_ON(iter != wlvif);
4549d09c 2444 if (wl12xx_need_fw_change(wl, vif_count, false)) {
3dee4393 2445 wl12xx_force_active_psm(wl);
e9ba7152 2446 set_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags);
4549d09c 2447 wl12xx_queue_recovery_work(wl);
4549d09c 2448 }
10c8cd01 2449out:
67353299 2450 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 2451}
2452
c0fad1b7
EP		 2453static int wl12xx_op_change_interface(struct ieee80211_hw *hw,
2454 struct ieee80211_vif *vif,
2455 enum nl80211_iftype new_type, bool p2p)
2456{
4549d09c
EP		 2457 struct wl1271 *wl = hw->priv;
2458 int ret;
2459
2460 set_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
c0fad1b7
EP		 2461 wl1271_op_remove_interface(hw, vif);
2462
249e9698 2463 vif->type = new_type;
c0fad1b7 2464 vif->p2p = p2p;
4549d09c
EP		 2465 ret = wl1271_op_add_interface(hw, vif);
2466
2467 clear_bit(WL1271_FLAG_VIF_CHANGE_IN_PROGRESS, &wl->flags);
2468 return ret;
c0fad1b7
EP		 2469}
2470
3230f35e 2471static int wlcore_join(struct wl1271 *wl, struct wl12xx_vif *wlvif)
82429d32
JO		 2472{
2473 int ret;
536129c8 2474 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2475
69e5434c
JO		 2476 /*
2477 * One of the side effects of the JOIN command is that is clears
2478 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2479 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2480 * Currently the only valid scenario for JOIN during association
2481 * is on roaming, in which case we will also be given new keys.
2482 * Keep the below message for now, unless it starts bothering
2483 * users who really like to roam a lot :)
69e5434c 2484 */
ba8447f6 2485 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
69e5434c
JO		 2486 wl1271_info("JOIN while associated.");
2487
5ec8a448
EP		 2488 /* clear encryption type */
2489 wlvif->encryption_type = KEY_NONE;
2490
227e81e1 2491 if (is_ibss)
87fbcb0f 2492 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
18eab430
EP		 2493 else {
2494 if (wl->quirks & WLCORE_QUIRK_START_STA_FAILS) {
2495 /*
2496 * TODO: this is an ugly workaround for wl12xx fw
2497 * bug - we are not able to tx/rx after the first
2498 * start_sta, so make dummy start+stop calls,
2499 * and then call start_sta again.
2500 * this should be fixed in the fw.
2501 */
2502 wl12xx_cmd_role_start_sta(wl, wlvif);
2503 wl12xx_cmd_role_stop_sta(wl, wlvif);
2504 }
2505
87fbcb0f 2506 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
18eab430 2507 }
3230f35e
EP		 2508
2509 return ret;
2510}
2511
2512static int wl1271_ssid_set(struct wl12xx_vif *wlvif, struct sk_buff *skb,
2513 int offset)
2514{
2515 u8 ssid_len;
2516 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
2517 skb->len - offset);
2518
2519 if (!ptr) {
2520 wl1271_error("No SSID in IEs!");
2521 return -ENOENT;
2522 }
2523
2524 ssid_len = ptr[1];
2525 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2526 wl1271_error("SSID is too long!");
2527 return -EINVAL;
2528 }
2529
2530 wlvif->ssid_len = ssid_len;
2531 memcpy(wlvif->ssid, ptr+2, ssid_len);
2532 return 0;
2533}
2534
2535static int wlcore_set_ssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2536{
2537 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2538 struct sk_buff *skb;
2539 int ieoffset;
2540
2541 /* we currently only support setting the ssid from the ap probe req */
2542 if (wlvif->bss_type != BSS_TYPE_STA_BSS)
2543 return -EINVAL;
2544
2545 skb = ieee80211_ap_probereq_get(wl->hw, vif);
2546 if (!skb)
2547 return -EINVAL;
2548
2549 ieoffset = offsetof(struct ieee80211_mgmt,
2550 u.probe_req.variable);
2551 wl1271_ssid_set(wlvif, skb, ieoffset);
2552 dev_kfree_skb(skb);
2553
2554 return 0;
2555}
2556
2557static int wlcore_set_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2558 struct ieee80211_bss_conf *bss_conf)
2559{
2560 int ieoffset;
2561 int ret;
2562
2563 wlvif->aid = bss_conf->aid;
2564 wlvif->channel_type = bss_conf->channel_type;
2565 wlvif->beacon_int = bss_conf->beacon_int;
2566
2567 set_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags);
2568
2569 /*
2570 * with wl1271, we don't need to update the
2571 * beacon_int and dtim_period, because the firmware
2572 * updates it by itself when the first beacon is
2573 * received after a join.
2574 */
2575 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
82429d32 2576 if (ret < 0)
3230f35e 2577 return ret;
82429d32 2578
3230f35e
EP		 2579 /*
2580 * Get a template for hardware connection maintenance
2581 */
2582 dev_kfree_skb(wlvif->probereq);
2583 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
2584 wlvif,
2585 NULL);
2586 ieoffset = offsetof(struct ieee80211_mgmt,
2587 u.probe_req.variable);
2588 wl1271_ssid_set(wlvif, wlvif->probereq, ieoffset);
2589
2590 /* enable the connection monitoring feature */
2591 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
2592 if (ret < 0)
2593 return ret;
82429d32
JO		 2594
2595 /*
2596 * The join command disable the keep-alive mode, shut down its process,
2597 * and also clear the template config, so we need to reset it all after
2598 * the join. The acx_aid starts the keep-alive process, and the order
2599 * of the commands below is relevant.
2600 */
0603d891 2601 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
82429d32 2602 if (ret < 0)
3230f35e 2603 return ret;
82429d32 2604
0603d891 2605 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
82429d32 2606 if (ret < 0)
3230f35e 2607 return ret;
82429d32 2608
d2d66c56 2609 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32 2610 if (ret < 0)
3230f35e 2611 return ret;
82429d32 2612
0603d891 2613 ret = wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2614 wlvif->sta.klv_template_id,
82429d32
JO		 2615 ACX_KEEP_ALIVE_TPL_VALID);
2616 if (ret < 0)
3230f35e 2617 return ret;
82429d32 2618
82429d32
JO		 2619 return ret;
2620}
2621
3230f35e 2622static int wlcore_unset_assoc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
c7f43e45
LC		 2623{
2624 int ret;
3230f35e
EP		 2625 bool sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
2626
2627 /* make sure we are connected (sta) joined */
2628 if (sta &&
2629 !test_and_clear_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
2630 return false;
2631
2632 /* make sure we are joined (ibss) */
2633 if (!sta &&
2634 test_and_clear_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags))
2635 return false;
2636
2637 if (sta) {
2638 /* use defaults when not associated */
2639 wlvif->aid = 0;
2640
2641 /* free probe-request template */
2642 dev_kfree_skb(wlvif->probereq);
2643 wlvif->probereq = NULL;
2644
2645 /* disable connection monitor features */
2646 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
2647 if (ret < 0)
2648 return ret;
2649
2650 /* Disable the keep-alive feature */
2651 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
2652 if (ret < 0)
2653 return ret;
2654 }
c7f43e45 2655
52630c5d 2656 if (test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags)) {
6e8cd331
EP		 2657 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2658
6d158ff3 2659 wl12xx_cmd_stop_channel_switch(wl);
6e8cd331 2660 ieee80211_chswitch_done(vif, false);
6d158ff3
SL		 2661 }
2662
4137c17c
EP		 2663 /* invalidate keep-alive template */
2664 wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2665 wlvif->sta.klv_template_id,
4137c17c
EP		 2666 ACX_KEEP_ALIVE_TPL_INVALID);
2667
b992c682 2668 /* reset TX security counters on a clean disconnect */
48e93e40
EP		 2669 wlvif->tx_security_last_seq_lsb = 0;
2670 wlvif->tx_security_seq = 0;
b992c682 2671
3230f35e 2672 return 0;
c7f43e45
LC		 2673}
2674
87fbcb0f 2675static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2676{
1b92f15e 2677 wlvif->basic_rate_set = wlvif->bitrate_masks[wlvif->band];
30d0c8fd 2678 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2679}
2680
9f259c4e
EP		 2681static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2682 struct ieee80211_conf *conf, u32 changed)
f5fc0f86 2683{
9f259c4e
EP		 2684 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
2685 int channel, ret;
f5fc0f86
LC		 2686
2687 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2688
ebba60c6 2689 /* if the channel changes while joined, join again */
69e5434c 2690 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
1b92f15e 2691 ((wlvif->band != conf->channel->band) ||
83d08d3f
AN		 2692 (wlvif->channel != channel) ||
2693 (wlvif->channel_type != conf->channel_type))) {
c6930b07 2694 /* send all pending packets */
eb96f841
IY		 2695 ret = wlcore_tx_work_locked(wl);
2696 if (ret < 0)
2697 return ret;
2698
61f845f4
EP		 2699 wlvif->band = conf->channel->band;
2700 wlvif->channel = channel;
83d08d3f 2701 wlvif->channel_type = conf->channel_type;
ebba60c6 2702
ebc7e57d 2703 if (is_ap) {
2812eef1 2704 wl1271_set_band_rate(wl, wlvif);
ebc7e57d
AN		 2705 ret = wl1271_init_ap_rates(wl, wlvif);
2706 if (ret < 0)
2707 wl1271_error("AP rate policy change failed %d",
2708 ret);
2709 } else {
bee0ffec
AN		 2710 /*
2711 * FIXME: the mac80211 should really provide a fixed
2712 * rate to use here. for now, just use the smallest
2713 * possible rate for the band as a fixed rate for
2714 * association frames and other control messages.
2715 */
ba8447f6 2716 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
87fbcb0f 2717 wl1271_set_band_rate(wl, wlvif);
bee0ffec 2718
d2d66c56 2719 wlvif->basic_rate =
87fbcb0f
EP		 2720 wl1271_tx_min_rate_get(wl,
2721 wlvif->basic_rate_set);
30d0c8fd 2722 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 2723 if (ret < 0)
bee0ffec 2724 wl1271_warning("rate policy for channel "
ebba60c6 2725 "failed %d", ret);
bee0ffec 2726
121af049
EP		 2727 /*
2728 * change the ROC channel. do it only if we are
2729 * not idle. otherwise, CROC will be called
2730 * anyway.
2731 */
2732 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED,
2733 &wlvif->flags) &&
2734 wl12xx_dev_role_started(wlvif) &&
2735 !(conf->flags & IEEE80211_CONF_IDLE)) {
2736 ret = wl12xx_stop_dev(wl, wlvif);
bee0ffec 2737 if (ret < 0)
121af049
EP		 2738 return ret;
2739
2740 ret = wl12xx_start_dev(wl, wlvif);
2741 if (ret < 0)
2742 return ret;
bee0ffec 2743 }
ebba60c6
JO		 2744 }
2745 }
2746
d18da7fc
ES		 2747 if ((changed & IEEE80211_CONF_CHANGE_PS) && !is_ap) {
2748
2749 if ((conf->flags & IEEE80211_CONF_PS) &&
2750 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
5c0dc2fc 2751 !test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc 2752
5c0dc2fc
ES		 2753 int ps_mode;
2754 char *ps_mode_str;
2755
2756 if (wl->conf.conn.forced_ps) {
2757 ps_mode = STATION_POWER_SAVE_MODE;
2758 ps_mode_str = "forced";
2759 } else {
2760 ps_mode = STATION_AUTO_PS_MODE;
2761 ps_mode_str = "auto";
2762 }
2763
2764 wl1271_debug(DEBUG_PSM, "%s ps enabled", ps_mode_str);
2765
2766 ret = wl1271_ps_set_mode(wl, wlvif, ps_mode);
f5fc0f86 2767
d18da7fc 2768 if (ret < 0)
5c0dc2fc
ES		 2769 wl1271_warning("enter %s ps failed %d",
2770 ps_mode_str, ret);
f5fc0f86 2771
d18da7fc 2772 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
5c0dc2fc 2773 test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc
ES		 2774
2775 wl1271_debug(DEBUG_PSM, "auto ps disabled");
f5fc0f86 2776
0603d891 2777 ret = wl1271_ps_set_mode(wl, wlvif,
248a0018 2778 STATION_ACTIVE_MODE);
d18da7fc
ES		 2779 if (ret < 0)
2780 wl1271_warning("exit auto ps failed %d", ret);
2781 }
f5fc0f86
LC		 2782 }
2783
6bd65029 2784 if (conf->power_level != wlvif->power_level) {
0603d891 2785 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
f5fc0f86 2786 if (ret < 0)
9f259c4e 2787 return ret;
f5fc0f86 2788
6bd65029 2789 wlvif->power_level = conf->power_level;
f5fc0f86
LC		 2790 }
2791
9f259c4e
EP		 2792 return 0;
2793}
2794
2795static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2796{
2797 struct wl1271 *wl = hw->priv;
2798 struct wl12xx_vif *wlvif;
2799 struct ieee80211_conf *conf = &hw->conf;
2800 int channel, ret = 0;
2801
2802 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2803
2804 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2805 " changed 0x%x",
2806 channel,
2807 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
2808 conf->power_level,
2809 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2810 changed);
2811
2812 /*
2813 * mac80211 will go to idle nearly immediately after transmitting some
2814 * frames, such as the deauth. To make sure those frames reach the air,
2815 * wait here until the TX queue is fully flushed.
2816 */
d1bcb53f
EP		 2817 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
2818 ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2819 (conf->flags & IEEE80211_CONF_IDLE)))
9f259c4e
EP		 2820 wl1271_tx_flush(wl);
2821
2822 mutex_lock(&wl->mutex);
2823
2824 /* we support configuring the channel and band even while off */
2825 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
2826 wl->band = conf->channel->band;
2827 wl->channel = channel;
83d08d3f 2828 wl->channel_type = conf->channel_type;
9f259c4e
EP		 2829 }
2830
2831 if (changed & IEEE80211_CONF_CHANGE_POWER)
2832 wl->power_level = conf->power_level;
2833
4cc53383 2834 if (unlikely(wl->state != WLCORE_STATE_ON))
9f259c4e
EP		 2835 goto out;
2836
2837 ret = wl1271_ps_elp_wakeup(wl);
2838 if (ret < 0)
2839 goto out;
2840
2841 /* configure each interface */
2842 wl12xx_for_each_wlvif(wl, wlvif) {
2843 ret = wl12xx_config_vif(wl, wlvif, conf, changed);
2844 if (ret < 0)
2845 goto out_sleep;
2846 }
2847
f5fc0f86
LC		 2848out_sleep:
2849 wl1271_ps_elp_sleep(wl);
2850
2851out:
2852 mutex_unlock(&wl->mutex);
2853
2854 return ret;
2855}
2856
b54853f1
JO		 2857struct wl1271_filter_params {
2858 bool enabled;
2859 int mc_list_length;
2860 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2861};
2862
22bedad3
JP		 2863static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2864 struct netdev_hw_addr_list *mc_list)
c87dec9f 2865{
c87dec9f 2866 struct wl1271_filter_params *fp;
22bedad3 2867 struct netdev_hw_addr *ha;
c87dec9f 2868
74441130 2869 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2870 if (!fp) {
2871 wl1271_error("Out of memory setting filters.");
2872 return 0;
2873 }
2874
2875 /* update multicast filtering parameters */
c87dec9f 2876 fp->mc_list_length = 0;
22bedad3
JP		 2877 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2878 fp->enabled = false;
2879 } else {
2880 fp->enabled = true;
2881 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2882 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2883 ha->addr, ETH_ALEN);
c87dec9f 2884 fp->mc_list_length++;
22bedad3 2885 }
c87dec9f
JO		 2886 }
2887
b54853f1 2888 return (u64)(unsigned long)fp;
c87dec9f 2889}
f5fc0f86 2890
b54853f1
JO		 2891#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2892 FIF_ALLMULTI | \
2893 FIF_FCSFAIL | \
2894 FIF_BCN_PRBRESP_PROMISC | \
2895 FIF_CONTROL | \
2896 FIF_OTHER_BSS)
2897
f5fc0f86
LC		 2898static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2899 unsigned int changed,
c87dec9f 2900 unsigned int *total, u64 multicast)
f5fc0f86 2901{
b54853f1 2902 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2903 struct wl1271 *wl = hw->priv;
6e8cd331 2904 struct wl12xx_vif *wlvif;
536129c8 2905
b54853f1 2906 int ret;
f5fc0f86 2907
7d057869
AN		 2908 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2909 " total %x", changed, *total);
f5fc0f86 2910
b54853f1
JO		 2911 mutex_lock(&wl->mutex);
2912
2c10bb9c
SD		 2913 *total &= WL1271_SUPPORTED_FILTERS;
2914 changed &= WL1271_SUPPORTED_FILTERS;
2915
4cc53383 2916 if (unlikely(wl->state != WLCORE_STATE_ON))
b54853f1
JO		 2917 goto out;
2918
a620865e 2919 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2920 if (ret < 0)
2921 goto out;
2922
6e8cd331
EP		 2923 wl12xx_for_each_wlvif(wl, wlvif) {
2924 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
2925 if (*total & FIF_ALLMULTI)
2926 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2927 false,
2928 NULL, 0);
2929 else if (fp)
2930 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2931 fp->enabled,
2932 fp->mc_list,
2933 fp->mc_list_length);
2934 if (ret < 0)
2935 goto out_sleep;
2936 }
7d057869 2937 }
f5fc0f86 2938
08c1d1c7
EP		 2939 /*
2940 * the fw doesn't provide an api to configure the filters. instead,
2941 * the filters configuration is based on the active roles / ROC
2942 * state.
2943 */
b54853f1
JO		 2944
2945out_sleep:
2946 wl1271_ps_elp_sleep(wl);
2947
2948out:
2949 mutex_unlock(&wl->mutex);
14b228a0 2950 kfree(fp);
f5fc0f86
LC		 2951}
2952
170d0e67
EP		 2953static int wl1271_record_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2954 u8 id, u8 key_type, u8 key_size,
2955 const u8 *key, u8 hlid, u32 tx_seq_32,
2956 u16 tx_seq_16)
7f179b46
AN		 2957{
2958 struct wl1271_ap_key *ap_key;
2959 int i;
2960
2961 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2962
2963 if (key_size > MAX_KEY_SIZE)
2964 return -EINVAL;
2965
2966 /*
2967 * Find next free entry in ap_keys. Also check we are not replacing
2968 * an existing key.
2969 */
2970 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67 2971 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2972 break;
2973
170d0e67 2974 if (wlvif->ap.recorded_keys[i]->id == id) {
7f179b46
AN		 2975 wl1271_warning("trying to record key replacement");
2976 return -EINVAL;
2977 }
2978 }
2979
2980 if (i == MAX_NUM_KEYS)
2981 return -EBUSY;
2982
2983 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2984 if (!ap_key)
2985 return -ENOMEM;
2986
2987 ap_key->id = id;
2988 ap_key->key_type = key_type;
2989 ap_key->key_size = key_size;
2990 memcpy(ap_key->key, key, key_size);
2991 ap_key->hlid = hlid;
2992 ap_key->tx_seq_32 = tx_seq_32;
2993 ap_key->tx_seq_16 = tx_seq_16;
2994
170d0e67 2995 wlvif->ap.recorded_keys[i] = ap_key;
7f179b46
AN		 2996 return 0;
2997}
2998
170d0e67 2999static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 3000{
3001 int i;
3002
3003 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67
EP		 3004 kfree(wlvif->ap.recorded_keys[i]);
3005 wlvif->ap.recorded_keys[i] = NULL;
7f179b46
AN		 3006 }
3007}
3008
a8ab39a4 3009static int wl1271_ap_init_hwenc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 3010{
3011 int i, ret = 0;
3012 struct wl1271_ap_key *key;
3013 bool wep_key_added = false;
3014
3015 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 3016 u8 hlid;
170d0e67 3017 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 3018 break;
3019
170d0e67 3020 key = wlvif->ap.recorded_keys[i];
7f97b487
EP		 3021 hlid = key->hlid;
3022 if (hlid == WL12XX_INVALID_LINK_ID)
a8ab39a4 3023 hlid = wlvif->ap.bcast_hlid;
7f97b487 3024
a8ab39a4 3025 ret = wl1271_cmd_set_ap_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 3026 key->id, key->key_type,
3027 key->key_size, key->key,
7f97b487 3028 hlid, key->tx_seq_32,
7f179b46
AN		 3029 key->tx_seq_16);
3030 if (ret < 0)
3031 goto out;
3032
3033 if (key->key_type == KEY_WEP)
3034 wep_key_added = true;
3035 }
3036
3037 if (wep_key_added) {
f75c753f 3038 ret = wl12xx_cmd_set_default_wep_key(wl, wlvif->default_key,
a8ab39a4 3039 wlvif->ap.bcast_hlid);
7f179b46
AN		 3040 if (ret < 0)
3041 goto out;
3042 }
3043
3044out:
170d0e67 3045 wl1271_free_ap_keys(wl, wlvif);
7f179b46
AN		 3046 return ret;
3047}
3048
536129c8
EP		 3049static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3050 u16 action, u8 id, u8 key_type,
7f179b46
AN		 3051 u8 key_size, const u8 *key, u32 tx_seq_32,
3052 u16 tx_seq_16, struct ieee80211_sta *sta)
3053{
3054 int ret;
536129c8 3055 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 3056
3057 if (is_ap) {
3058 struct wl1271_station *wl_sta;
3059 u8 hlid;
3060
3061 if (sta) {
3062 wl_sta = (struct wl1271_station *)sta->drv_priv;
3063 hlid = wl_sta->hlid;
3064 } else {
a8ab39a4 3065 hlid = wlvif->ap.bcast_hlid;
7f179b46
AN		 3066 }
3067
53d40d0b 3068 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
7f179b46
AN		 3069 /*
3070 * We do not support removing keys after AP shutdown.
3071 * Pretend we do to make mac80211 happy.
3072 */
3073 if (action != KEY_ADD_OR_REPLACE)
3074 return 0;
3075
170d0e67 3076 ret = wl1271_record_ap_key(wl, wlvif, id,
7f179b46
AN		 3077 key_type, key_size,
3078 key, hlid, tx_seq_32,
3079 tx_seq_16);
3080 } else {
a8ab39a4 3081 ret = wl1271_cmd_set_ap_key(wl, wlvif, action,
7f179b46
AN		 3082 id, key_type, key_size,
3083 key, hlid, tx_seq_32,
3084 tx_seq_16);
3085 }
3086
3087 if (ret < 0)
3088 return ret;
3089 } else {
3090 const u8 *addr;
3091 static const u8 bcast_addr[ETH_ALEN] = {
3092 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
3093 };
3094
3095 addr = sta ? sta->addr : bcast_addr;
3096
3097 if (is_zero_ether_addr(addr)) {
3098 /* We dont support TX only encryption */
3099 return -EOPNOTSUPP;
3100 }
3101
3102 /* The wl1271 does not allow to remove unicast keys - they
3103 will be cleared automatically on next CMD_JOIN. Ignore the
3104 request silently, as we dont want the mac80211 to emit
3105 an error message. */
3106 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
3107 return 0;
3108
010d3d30
EP		 3109 /* don't remove key if hlid was already deleted */
3110 if (action == KEY_REMOVE &&
154da67c 3111 wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
010d3d30
EP		 3112 return 0;
3113
a8ab39a4 3114 ret = wl1271_cmd_set_sta_key(wl, wlvif, action,
7f179b46
AN		 3115 id, key_type, key_size,
3116 key, addr, tx_seq_32,
3117 tx_seq_16);
3118 if (ret < 0)
3119 return ret;
3120
3121 /* the default WEP key needs to be configured at least once */
3122 if (key_type == KEY_WEP) {
c690ec81 3123 ret = wl12xx_cmd_set_default_wep_key(wl,
f75c753f
EP		 3124 wlvif->default_key,
3125 wlvif->sta.hlid);
7f179b46
AN		 3126 if (ret < 0)
3127 return ret;
3128 }
3129 }
3130
3131 return 0;
3132}
3133
a1c597f2 3134static int wlcore_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
f5fc0f86
LC		 3135 struct ieee80211_vif *vif,
3136 struct ieee80211_sta *sta,
3137 struct ieee80211_key_conf *key_conf)
3138{
3139 struct wl1271 *wl = hw->priv;
af390f4d
EP		 3140 int ret;
3141 bool might_change_spare =
3142 key_conf->cipher == WL1271_CIPHER_SUITE_GEM ||
3143 key_conf->cipher == WLAN_CIPHER_SUITE_TKIP;
3144
3145 if (might_change_spare) {
3146 /*
3147 * stop the queues and flush to ensure the next packets are
3148 * in sync with FW spare block accounting
3149 */
3150 mutex_lock(&wl->mutex);
3151 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3152 mutex_unlock(&wl->mutex);
3153
3154 wl1271_tx_flush(wl);
3155 }
3156
3157 mutex_lock(&wl->mutex);
3158
3159 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3160 ret = -EAGAIN;
3161 goto out_wake_queues;
3162 }
a1c597f2 3163
af390f4d
EP		 3164 ret = wl1271_ps_elp_wakeup(wl);
3165 if (ret < 0)
3166 goto out_wake_queues;
3167
3168 ret = wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
3169
3170 wl1271_ps_elp_sleep(wl);
3171
3172out_wake_queues:
3173 if (might_change_spare)
3174 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3175
3176 mutex_unlock(&wl->mutex);
3177
3178 return ret;
a1c597f2
AN		 3179}
3180
3181int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
3182 struct ieee80211_vif *vif,
3183 struct ieee80211_sta *sta,
3184 struct ieee80211_key_conf *key_conf)
3185{
536129c8 3186 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 3187 int ret;
ac4e4ce5
JO		 3188 u32 tx_seq_32 = 0;
3189 u16 tx_seq_16 = 0;
f5fc0f86
LC		 3190 u8 key_type;
3191
f5fc0f86
LC		 3192 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
3193
7f179b46 3194 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 3195 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 3196 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 3197 key_conf->keylen, key_conf->flags);
3198 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
3199
97359d12
JB		 3200 switch (key_conf->cipher) {
3201 case WLAN_CIPHER_SUITE_WEP40:
3202 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 3203 key_type = KEY_WEP;
3204
3205 key_conf->hw_key_idx = key_conf->keyidx;
3206 break;
97359d12 3207 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 3208 key_type = KEY_TKIP;
3209
3210 key_conf->hw_key_idx = key_conf->keyidx;
48e93e40
EP		 3211 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3212 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3213 break;
97359d12 3214 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 3215 key_type = KEY_AES;
3216
12d4b975 3217 key_conf->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
48e93e40
EP		 3218 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3219 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3220 break;
7a55724e
JO		 3221 case WL1271_CIPHER_SUITE_GEM:
3222 key_type = KEY_GEM;
48e93e40
EP		 3223 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3224 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
7a55724e 3225 break;
f5fc0f86 3226 default:
97359d12 3227 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86 3228
af390f4d 3229 return -EOPNOTSUPP;
f5fc0f86
LC		 3230 }
3231
3232 switch (cmd) {
3233 case SET_KEY:
536129c8 3234 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 3235 key_conf->keyidx, key_type,
3236 key_conf->keylen, key_conf->key,
3237 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 3238 if (ret < 0) {
3239 wl1271_error("Could not add or replace key");
af390f4d 3240 return ret;
f5fc0f86 3241 }
5ec8a448
EP		 3242
3243 /*
3244 * reconfiguring arp response if the unicast (or common)
3245 * encryption key type was changed
3246 */
3247 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3248 (sta || key_type == KEY_WEP) &&
3249 wlvif->encryption_type != key_type) {
3250 wlvif->encryption_type = key_type;
3251 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
3252 if (ret < 0) {
3253 wl1271_warning("build arp rsp failed: %d", ret);
af390f4d 3254 return ret;
5ec8a448
EP		 3255 }
3256 }
f5fc0f86
LC		 3257 break;
3258
3259 case DISABLE_KEY:
536129c8 3260 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 3261 key_conf->keyidx, key_type,
3262 key_conf->keylen, key_conf->key,
3263 0, 0, sta);
f5fc0f86
LC		 3264 if (ret < 0) {
3265 wl1271_error("Could not remove key");
af390f4d 3266 return ret;
f5fc0f86
LC		 3267 }
3268 break;
3269
3270 default:
3271 wl1271_error("Unsupported key cmd 0x%x", cmd);
af390f4d 3272 return -EOPNOTSUPP;
f5fc0f86
LC		 3273 }
3274
f5fc0f86
LC		 3275 return ret;
3276}
a1c597f2 3277EXPORT_SYMBOL_GPL(wlcore_set_key);
f5fc0f86
LC		 3278
3279static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 3280 struct ieee80211_vif *vif,
f5fc0f86
LC		 3281 struct cfg80211_scan_request *req)
3282{
3283 struct wl1271 *wl = hw->priv;
3284 int ret;
3285 u8 *ssid = NULL;
abb0b3bf 3286 size_t len = 0;
f5fc0f86
LC		 3287
3288 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
3289
3290 if (req->n_ssids) {
3291 ssid = req->ssids[0].ssid;
abb0b3bf 3292 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 3293 }
3294
3295 mutex_lock(&wl->mutex);
3296
4cc53383 3297 if (unlikely(wl->state != WLCORE_STATE_ON)) {
b739a42c
JO		 3298 /*
3299 * We cannot return -EBUSY here because cfg80211 will expect
3300 * a call to ieee80211_scan_completed if we do - in this case
3301 * there won't be any call.
3302 */
3303 ret = -EAGAIN;
3304 goto out;
3305 }
3306
a620865e 3307 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3308 if (ret < 0)
3309 goto out;
3310
97fd311a
EP		 3311 /* fail if there is any role in ROC */
3312 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
92e712da
EP		 3313 /* don't allow scanning right now */
3314 ret = -EBUSY;
3315 goto out_sleep;
3316 }
3317
784f694d 3318 ret = wl1271_scan(hw->priv, vif, ssid, len, req);
251c177f 3319out_sleep:
f5fc0f86 3320 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 3321out:
3322 mutex_unlock(&wl->mutex);
3323
3324 return ret;
3325}
3326
73ecce31
EP		 3327static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
3328 struct ieee80211_vif *vif)
3329{
3330 struct wl1271 *wl = hw->priv;
3331 int ret;
3332
3333 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
3334
3335 mutex_lock(&wl->mutex);
3336
4cc53383 3337 if (unlikely(wl->state != WLCORE_STATE_ON))
73ecce31
EP		 3338 goto out;
3339
3340 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
3341 goto out;
3342
3343 ret = wl1271_ps_elp_wakeup(wl);
3344 if (ret < 0)
3345 goto out;
3346
3347 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
3348 ret = wl1271_scan_stop(wl);
3349 if (ret < 0)
3350 goto out_sleep;
3351 }
55df5afb
AN		 3352
3353 /*
3354 * Rearm the tx watchdog just before idling scan. This
3355 * prevents just-finished scans from triggering the watchdog
3356 */
3357 wl12xx_rearm_tx_watchdog_locked(wl);
3358
73ecce31
EP		 3359 wl->scan.state = WL1271_SCAN_STATE_IDLE;
3360 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 3361 wl->scan_vif = NULL;
73ecce31
EP		 3362 wl->scan.req = NULL;
3363 ieee80211_scan_completed(wl->hw, true);
3364
3365out_sleep:
3366 wl1271_ps_elp_sleep(wl);
3367out:
3368 mutex_unlock(&wl->mutex);
3369
3370 cancel_delayed_work_sync(&wl->scan_complete_work);
3371}
3372
33c2c06c
LC		 3373static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
3374 struct ieee80211_vif *vif,
3375 struct cfg80211_sched_scan_request *req,
3376 struct ieee80211_sched_scan_ies *ies)
3377{
3378 struct wl1271 *wl = hw->priv;
536129c8 3379 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3380 int ret;
3381
3382 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
3383
3384 mutex_lock(&wl->mutex);
3385
4cc53383 3386 if (unlikely(wl->state != WLCORE_STATE_ON)) {
9e0dc890
PF		 3387 ret = -EAGAIN;
3388 goto out;
3389 }
3390
33c2c06c
LC		 3391 ret = wl1271_ps_elp_wakeup(wl);
3392 if (ret < 0)
3393 goto out;
3394
536129c8 3395 ret = wl1271_scan_sched_scan_config(wl, wlvif, req, ies);
33c2c06c
LC		 3396 if (ret < 0)
3397 goto out_sleep;
3398
536129c8 3399 ret = wl1271_scan_sched_scan_start(wl, wlvif);
33c2c06c
LC		 3400 if (ret < 0)
3401 goto out_sleep;
3402
3403 wl->sched_scanning = true;
3404
3405out_sleep:
3406 wl1271_ps_elp_sleep(wl);
3407out:
3408 mutex_unlock(&wl->mutex);
3409 return ret;
3410}
3411
3412static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3413 struct ieee80211_vif *vif)
3414{
3415 struct wl1271 *wl = hw->priv;
78f85f50 3416 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3417 int ret;
3418
3419 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3420
3421 mutex_lock(&wl->mutex);
3422
4cc53383 3423 if (unlikely(wl->state != WLCORE_STATE_ON))
9e0dc890
PF		 3424 goto out;
3425
33c2c06c
LC		 3426 ret = wl1271_ps_elp_wakeup(wl);
3427 if (ret < 0)
3428 goto out;
3429
78f85f50 3430 wl1271_scan_sched_scan_stop(wl, wlvif);
33c2c06c
LC		 3431
3432 wl1271_ps_elp_sleep(wl);
3433out:
3434 mutex_unlock(&wl->mutex);
3435}
3436
68d069c4
AN		 3437static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3438{
3439 struct wl1271 *wl = hw->priv;
3440 int ret = 0;
3441
3442 mutex_lock(&wl->mutex);
3443
4cc53383 3444 if (unlikely(wl->state != WLCORE_STATE_ON)) {
68d069c4
AN		 3445 ret = -EAGAIN;
3446 goto out;
3447 }
3448
a620865e 3449 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3450 if (ret < 0)
3451 goto out;
3452
5f704d18 3453 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3454 if (ret < 0)
3455 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3456
3457 wl1271_ps_elp_sleep(wl);
3458
3459out:
3460 mutex_unlock(&wl->mutex);
3461
3462 return ret;
3463}
3464
f5fc0f86
LC		 3465static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3466{
3467 struct wl1271 *wl = hw->priv;
6e8cd331 3468 struct wl12xx_vif *wlvif;
aecb0565 3469 int ret = 0;
f5fc0f86
LC		 3470
3471 mutex_lock(&wl->mutex);
3472
4cc53383 3473 if (unlikely(wl->state != WLCORE_STATE_ON)) {
f8d9802f 3474 ret = -EAGAIN;
aecb0565 3475 goto out;
f8d9802f 3476 }
aecb0565 3477
a620865e 3478 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3479 if (ret < 0)
3480 goto out;
3481
6e8cd331
EP		 3482 wl12xx_for_each_wlvif(wl, wlvif) {
3483 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
3484 if (ret < 0)
3485 wl1271_warning("set rts threshold failed: %d", ret);
3486 }
f5fc0f86
LC		 3487 wl1271_ps_elp_sleep(wl);
3488
3489out:
3490 mutex_unlock(&wl->mutex);
3491
3492 return ret;
3493}
3494
d48055d9
EP		 3495static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3496{
3497 int len;
3498 const u8 *next, *end = skb->data + skb->len;
3499 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3500 skb->len - ieoffset);
3501 if (!ie)
3502 return;
3503 len = ie[1] + 2;
3504 next = ie + len;
3505 memmove(ie, next, end - next);
3506 skb_trim(skb, skb->len - len);
3507}
3508
26b4bf2e
EP		 3509static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3510 unsigned int oui, u8 oui_type,
3511 int ieoffset)
3512{
3513 int len;
3514 const u8 *next, *end = skb->data + skb->len;
3515 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3516 skb->data + ieoffset,
3517 skb->len - ieoffset);
3518 if (!ie)
3519 return;
3520 len = ie[1] + 2;
3521 next = ie + len;
3522 memmove(ie, next, end - next);
3523 skb_trim(skb, skb->len - len);
3524}
3525
341f2c11
AN		 3526static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl, u32 rates,
3527 struct ieee80211_vif *vif)
560f0024 3528{
cdaac628 3529 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
560f0024
AN		 3530 struct sk_buff *skb;
3531 int ret;
3532
341f2c11 3533 skb = ieee80211_proberesp_get(wl->hw, vif);
560f0024 3534 if (!skb)
341f2c11 3535 return -EOPNOTSUPP;
560f0024 3536
cdaac628 3537 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
560f0024
AN		 3538 CMD_TEMPL_AP_PROBE_RESPONSE,
3539 skb->data,
3540 skb->len, 0,
3541 rates);
560f0024 3542 dev_kfree_skb(skb);
62c2e579
LC		 3543
3544 if (ret < 0)
3545 goto out;
3546
3547 wl1271_debug(DEBUG_AP, "probe response updated");
3548 set_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags);
3549
3550out:
560f0024
AN		 3551 return ret;
3552}
3553
3554static int wl1271_ap_set_probe_resp_tmpl_legacy(struct wl1271 *wl,
3555 struct ieee80211_vif *vif,
3556 u8 *probe_rsp_data,
3557 size_t probe_rsp_len,
3558 u32 rates)
68eaaf6e 3559{
1fe9f161
EP		 3560 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3561 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
68eaaf6e
AN		 3562 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3563 int ssid_ie_offset, ie_offset, templ_len;
3564 const u8 *ptr;
3565
3566 /* no need to change probe response if the SSID is set correctly */
1fe9f161 3567 if (wlvif->ssid_len > 0)
cdaac628 3568 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3569 CMD_TEMPL_AP_PROBE_RESPONSE,
3570 probe_rsp_data,
3571 probe_rsp_len, 0,
3572 rates);
3573
3574 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3575 wl1271_error("probe_rsp template too big");
3576 return -EINVAL;
3577 }
3578
3579 /* start searching from IE offset */
3580 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3581
3582 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3583 probe_rsp_len - ie_offset);
3584 if (!ptr) {
3585 wl1271_error("No SSID in beacon!");
3586 return -EINVAL;
3587 }
3588
3589 ssid_ie_offset = ptr - probe_rsp_data;
3590 ptr += (ptr[1] + 2);
3591
3592 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3593
3594 /* insert SSID from bss_conf */
3595 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3596 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3597 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3598 bss_conf->ssid, bss_conf->ssid_len);
3599 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3600
3601 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3602 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3603 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3604
cdaac628 3605 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3606 CMD_TEMPL_AP_PROBE_RESPONSE,
3607 probe_rsp_templ,
3608 templ_len, 0,
3609 rates);
3610}
3611
e78a287a 3612static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
0603d891 3613 struct ieee80211_vif *vif,
f5fc0f86
LC		 3614 struct ieee80211_bss_conf *bss_conf,
3615 u32 changed)
3616{
0603d891 3617 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3618 int ret = 0;
f5fc0f86 3619
e78a287a
AN		 3620 if (changed & BSS_CHANGED_ERP_SLOT) {
3621 if (bss_conf->use_short_slot)
0603d891 3622 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
e78a287a 3623 else
0603d891 3624 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
e78a287a
AN		 3625 if (ret < 0) {
3626 wl1271_warning("Set slot time failed %d", ret);
3627 goto out;
3628 }
3629 }
f5fc0f86 3630
e78a287a
AN		 3631 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3632 if (bss_conf->use_short_preamble)
0603d891 3633 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
e78a287a 3634 else
0603d891 3635 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
e78a287a 3636 }
f5fc0f86 3637
e78a287a
AN		 3638 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3639 if (bss_conf->use_cts_prot)
0603d891
EP		 3640 ret = wl1271_acx_cts_protect(wl, wlvif,
3641 CTSPROTECT_ENABLE);
e78a287a 3642 else
0603d891
EP		 3643 ret = wl1271_acx_cts_protect(wl, wlvif,
3644 CTSPROTECT_DISABLE);
e78a287a
AN		 3645 if (ret < 0) {
3646 wl1271_warning("Set ctsprotect failed %d", ret);
3647 goto out;
3648 }
3649 }
f8d9802f 3650
e78a287a
AN		 3651out:
3652 return ret;
3653}
f5fc0f86 3654
62c2e579
LC		 3655static int wlcore_set_beacon_template(struct wl1271 *wl,
3656 struct ieee80211_vif *vif,
3657 bool is_ap)
3658{
3659 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3660 struct ieee80211_hdr *hdr;
3661 u32 min_rate;
3662 int ret;
3663 int ieoffset = offsetof(struct ieee80211_mgmt,
3664 u.beacon.variable);
3665 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3666 u16 tmpl_id;
3667
3668 if (!beacon) {
3669 ret = -EINVAL;
3670 goto out;
3671 }
3672
3673 wl1271_debug(DEBUG_MASTER, "beacon updated");
3674
3230f35e 3675 ret = wl1271_ssid_set(wlvif, beacon, ieoffset);
62c2e579
LC		 3676 if (ret < 0) {
3677 dev_kfree_skb(beacon);
3678 goto out;
3679 }
3680 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3681 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3682 CMD_TEMPL_BEACON;
3683 ret = wl1271_cmd_template_set(wl, wlvif->role_id, tmpl_id,
3684 beacon->data,
3685 beacon->len, 0,
3686 min_rate);
3687 if (ret < 0) {
3688 dev_kfree_skb(beacon);
3689 goto out;
3690 }
3691
3692 /*
3693 * In case we already have a probe-resp beacon set explicitly
3694 * by usermode, don't use the beacon data.
3695 */
3696 if (test_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags))
3697 goto end_bcn;
3698
3699 /* remove TIM ie from probe response */
3700 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3701
3702 /*
3703 * remove p2p ie from probe response.
3704 * the fw reponds to probe requests that don't include
3705 * the p2p ie. probe requests with p2p ie will be passed,
3706 * and will be responded by the supplicant (the spec
3707 * forbids including the p2p ie when responding to probe
3708 * requests that didn't include it).
3709 */
3710 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3711 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3712
3713 hdr = (struct ieee80211_hdr *) beacon->data;
3714 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3715 IEEE80211_STYPE_PROBE_RESP);
3716 if (is_ap)
3717 ret = wl1271_ap_set_probe_resp_tmpl_legacy(wl, vif,
3718 beacon->data,
3719 beacon->len,
3720 min_rate);
3721 else
3722 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
3723 CMD_TEMPL_PROBE_RESPONSE,
3724 beacon->data,
3725 beacon->len, 0,
3726 min_rate);
3727end_bcn:
3728 dev_kfree_skb(beacon);
3729 if (ret < 0)
3730 goto out;
3731
3732out:
3733 return ret;
3734}
3735
e78a287a
AN		 3736static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3737 struct ieee80211_vif *vif,
3738 struct ieee80211_bss_conf *bss_conf,
3739 u32 changed)
3740{
87fbcb0f 3741 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3742 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3743 int ret = 0;
3744
3745 if ((changed & BSS_CHANGED_BEACON_INT)) {
3746 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3747 bss_conf->beacon_int);
3748
6a899796 3749 wlvif->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3750 }
3751
560f0024
AN		 3752 if ((changed & BSS_CHANGED_AP_PROBE_RESP) && is_ap) {
3753 u32 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
62c2e579
LC		 3754
3755 wl1271_ap_set_probe_resp_tmpl(wl, rate, vif);
560f0024
AN		 3756 }
3757
e78a287a 3758 if ((changed & BSS_CHANGED_BEACON)) {
62c2e579 3759 ret = wlcore_set_beacon_template(wl, vif, is_ap);
e78a287a
AN		 3760 if (ret < 0)
3761 goto out;
3762 }
3763
3764out:
560f0024
AN		 3765 if (ret != 0)
3766 wl1271_error("beacon info change failed: %d", ret);
e78a287a
AN		 3767 return ret;
3768}
3769
3770/* AP mode changes */
3771static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3772 struct ieee80211_vif *vif,
3773 struct ieee80211_bss_conf *bss_conf,
3774 u32 changed)
3775{
87fbcb0f 3776 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3777 int ret = 0;
e0d8bbf0 3778
e78a287a
AN		 3779 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3780 u32 rates = bss_conf->basic_rates;
5da11dcd 3781
87fbcb0f 3782 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 3783 wlvif->band);
d2d66c56 3784 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3785 wlvif->basic_rate_set);
70f47424 3786
87fbcb0f 3787 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3788 if (ret < 0) {
70f47424 3789 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3790 goto out;
3791 }
c45a85b5 3792
784f694d 3793 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3794 if (ret < 0)
3795 goto out;
62c2e579
LC		 3796
3797 ret = wl1271_ap_set_probe_resp_tmpl(wl, wlvif->basic_rate, vif);
3798 if (ret < 0)
3799 goto out;
3800
3801 ret = wlcore_set_beacon_template(wl, vif, true);
3802 if (ret < 0)
3803 goto out;
e78a287a 3804 }
2f6724b2 3805
e78a287a
AN		 3806 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3807 if (ret < 0)
3808 goto out;
30240fc7 3809
e78a287a
AN		 3810 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3811 if (bss_conf->enable_beacon) {
53d40d0b 3812 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
87fbcb0f 3813 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3814 if (ret < 0)
3815 goto out;
e0d8bbf0 3816
a8ab39a4 3817 ret = wl1271_ap_init_hwenc(wl, wlvif);
7f179b46
AN		 3818 if (ret < 0)
3819 goto out;
cf42039f 3820
53d40d0b 3821 set_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
cf42039f 3822 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3823 }
e78a287a 3824 } else {
53d40d0b 3825 if (test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
0603d891 3826 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
e78a287a
AN		 3827 if (ret < 0)
3828 goto out;
e0d8bbf0 3829
53d40d0b 3830 clear_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
560f0024
AN		 3831 clear_bit(WLVIF_FLAG_AP_PROBE_RESP_SET,
3832 &wlvif->flags);
e78a287a
AN		 3833 wl1271_debug(DEBUG_AP, "stopped AP");
3834 }
3835 }
3836 }
e0d8bbf0 3837
0603d891 3838 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3839 if (ret < 0)
3840 goto out;
0b932ab9
AN		 3841
3842 /* Handle HT information change */
3843 if ((changed & BSS_CHANGED_HT) &&
3844 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3845 ret = wl1271_acx_set_ht_information(wl, wlvif,
0b932ab9
AN		 3846 bss_conf->ht_operation_mode);
3847 if (ret < 0) {
3848 wl1271_warning("Set ht information failed %d", ret);
3849 goto out;
3850 }
3851 }
3852
e78a287a
AN		 3853out:
3854 return;
3855}
8bf29b0e 3856
3230f35e
EP		 3857static int wlcore_set_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
3858 struct ieee80211_bss_conf *bss_conf,
3859 u32 sta_rate_set)
3860{
3861 u32 rates;
3862 int ret;
3863
3864 wl1271_debug(DEBUG_MAC80211,
3865 "changed_bssid: %pM, aid: %d, bcn_int: %d, brates: 0x%x sta_rate_set: 0x%x",
3866 bss_conf->bssid, bss_conf->aid,
3867 bss_conf->beacon_int,
3868 bss_conf->basic_rates, sta_rate_set);
3869
3870 wlvif->beacon_int = bss_conf->beacon_int;
3871 rates = bss_conf->basic_rates;
3872 wlvif->basic_rate_set =
3873 wl1271_tx_enabled_rates_get(wl, rates,
3874 wlvif->band);
3875 wlvif->basic_rate =
3876 wl1271_tx_min_rate_get(wl,
3877 wlvif->basic_rate_set);
3878
3879 if (sta_rate_set)
3880 wlvif->rate_set =
3881 wl1271_tx_enabled_rates_get(wl,
3882 sta_rate_set,
3883 wlvif->band);
3884
3885 /* we only support sched_scan while not connected */
3886 if (wl->sched_scanning) {
3887 wl1271_scan_sched_scan_stop(wl, wlvif);
3888 ieee80211_sched_scan_stopped(wl->hw);
3889 }
3890
3891 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
3892 if (ret < 0)
3893 return ret;
3894
3895 ret = wl12xx_cmd_build_null_data(wl, wlvif);
3896 if (ret < 0)
3897 return ret;
3898
3899 ret = wl1271_build_qos_null_data(wl, wl12xx_wlvif_to_vif(wlvif));
3900 if (ret < 0)
3901 return ret;
3902
3903 wlcore_set_ssid(wl, wlvif);
3904
3905 set_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
3906
3907 return 0;
3908}
3909
3910static int wlcore_clear_bssid(struct wl1271 *wl, struct wl12xx_vif *wlvif)
3911{
3912 int ret;
3913
3914 /* revert back to minimum rates for the current band */
3915 wl1271_set_band_rate(wl, wlvif);
3916 wlvif->basic_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3917
3918 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
3919 if (ret < 0)
3920 return ret;
3921
3922 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3923 test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags)) {
3924 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
3925 if (ret < 0)
3926 return ret;
3927 }
3928
3929 clear_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
3930 return 0;
3931}
e78a287a
AN		 3932/* STA/IBSS mode changes */
3933static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3934 struct ieee80211_vif *vif,
3935 struct ieee80211_bss_conf *bss_conf,
3936 u32 changed)
3937{
87fbcb0f 3938 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3230f35e 3939 bool do_join = false;
536129c8 3940 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3941 bool ibss_joined = false;
72c2d9e5 3942 u32 sta_rate_set = 0;
e78a287a 3943 int ret;
2d6e4e76 3944 struct ieee80211_sta *sta;
a100885d
AN		 3945 bool sta_exists = false;
3946 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3947
3948 if (is_ibss) {
3949 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3950 changed);
3951 if (ret < 0)
3952 goto out;
e0d8bbf0
JO		 3953 }
3954
227e81e1
EP		 3955 if (changed & BSS_CHANGED_IBSS) {
3956 if (bss_conf->ibss_joined) {
eee514e3 3957 set_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags);
227e81e1
EP		 3958 ibss_joined = true;
3959 } else {
3230f35e
EP		 3960 wlcore_unset_assoc(wl, wlvif);
3961 wl12xx_cmd_role_stop_sta(wl, wlvif);
227e81e1
EP		 3962 }
3963 }
3964
3965 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3966 do_join = true;
3967
3968 /* Need to update the SSID (for filtering etc) */
227e81e1 3969 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3970 do_join = true;
3971
227e81e1 3972 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3973 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3974 bss_conf->enable_beacon ? "enabled" : "disabled");
3975
5da11dcd
JO		 3976 do_join = true;
3977 }
3978
e78a287a 3979 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3980 bool enable = false;
3981 if (bss_conf->cqm_rssi_thold)
3982 enable = true;
0603d891 3983 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
00236aed
JO		 3984 bss_conf->cqm_rssi_thold,
3985 bss_conf->cqm_rssi_hyst);
3986 if (ret < 0)
3987 goto out;
04324d99 3988 wlvif->rssi_thold = bss_conf->cqm_rssi_thold;
00236aed
JO		 3989 }
3990
3230f35e 3991 if (changed & (BSS_CHANGED_BSSID | BSS_CHANGED_HT)) {
0f9c8250
AN		 3992 rcu_read_lock();
3993 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3994 if (!sta)
3995 goto sta_not_found;
3996
72c2d9e5
EP		 3997 /* save the supp_rates of the ap */
3998 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3999 if (sta->ht_cap.ht_supported)
4000 sta_rate_set |=
b3a47ee0
AN		 4001 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
4002 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
a100885d
AN		 4003 sta_ht_cap = sta->ht_cap;
4004 sta_exists = true;
72c2d9e5 4005
0f9c8250
AN		 4006sta_not_found:
4007 rcu_read_unlock();
72c2d9e5 4008 }
72c2d9e5 4009
3230f35e
EP		 4010 if (changed & BSS_CHANGED_BSSID) {
4011 if (!is_zero_ether_addr(bss_conf->bssid)) {
4012 ret = wlcore_set_bssid(wl, wlvif, bss_conf,
4013 sta_rate_set);
f5fc0f86 4014 if (ret < 0)
e78a287a 4015 goto out;
f5fc0f86 4016
3230f35e
EP		 4017 /* Need to update the BSSID (for filtering etc) */
4018 do_join = true;
d94cd297 4019 } else {
3230f35e 4020 ret = wlcore_clear_bssid(wl, wlvif);
6ccbb92e 4021 if (ret < 0)
e78a287a 4022 goto out;
f5fc0f86 4023 }
f5fc0f86
LC		 4024 }
4025
d192d268
EP		 4026 if (changed & BSS_CHANGED_IBSS) {
4027 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
4028 bss_conf->ibss_joined);
4029
4030 if (bss_conf->ibss_joined) {
4031 u32 rates = bss_conf->basic_rates;
87fbcb0f 4032 wlvif->basic_rate_set =
af7fbb28 4033 wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 4034 wlvif->band);
d2d66c56 4035 wlvif->basic_rate =
87fbcb0f
EP		 4036 wl1271_tx_min_rate_get(wl,
4037 wlvif->basic_rate_set);
d192d268 4038
06b660e1 4039 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 4040 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
4041 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 4042 if (ret < 0)
4043 goto out;
4044 }
4045 }
4046
0603d891 4047 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 4048 if (ret < 0)
4049 goto out;
f5fc0f86 4050
8bf29b0e 4051 if (do_join) {
3230f35e 4052 ret = wlcore_join(wl, wlvif);
8bf29b0e
JO		 4053 if (ret < 0) {
4054 wl1271_warning("cmd join failed %d", ret);
e78a287a 4055 goto out;
8bf29b0e 4056 }
251c177f
EP		 4057
4058 /* ROC until connected (after EAPOL exchange) */
4059 if (!is_ibss) {
1b92f15e 4060 ret = wl12xx_roc(wl, wlvif, wlvif->role_id);
251c177f
EP		 4061 if (ret < 0)
4062 goto out;
251c177f 4063 }
3230f35e
EP		 4064 }
4065
4066 if (changed & BSS_CHANGED_ASSOC) {
4067 if (bss_conf->assoc) {
4068 ret = wlcore_set_assoc(wl, wlvif, bss_conf);
251c177f
EP		 4069 if (ret < 0)
4070 goto out;
3230f35e
EP		 4071
4072 if (test_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags))
4073 wl12xx_set_authorized(wl, wlvif);
4074 } else {
4075 wlcore_unset_assoc(wl, wlvif);
251c177f 4076 }
c1899554
JO		 4077 }
4078
0b932ab9 4079 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 4080 if (sta_exists) {
4081 if ((changed & BSS_CHANGED_HT) &&
4082 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 4083 ret = wl1271_acx_set_ht_capabilities(wl,
4084 &sta_ht_cap,
4085 true,
154da67c 4086 wlvif->sta.hlid);
0f9c8250
AN		 4087 if (ret < 0) {
4088 wl1271_warning("Set ht cap true failed %d",
4089 ret);
4090 goto out;
4091 }
4092 }
4093 /* handle new association without HT and disassociation */
4094 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 4095 ret = wl1271_acx_set_ht_capabilities(wl,
4096 &sta_ht_cap,
4097 false,
154da67c 4098 wlvif->sta.hlid);
0f9c8250
AN		 4099 if (ret < 0) {
4100 wl1271_warning("Set ht cap false failed %d",
4101 ret);
4102 goto out;
4103 }
4104 }
4105 }
4106
0b932ab9
AN		 4107 /* Handle HT information change. Done after join. */
4108 if ((changed & BSS_CHANGED_HT) &&
0f9c8250 4109 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 4110 ret = wl1271_acx_set_ht_information(wl, wlvif,
0f9c8250
AN		 4111 bss_conf->ht_operation_mode);
4112 if (ret < 0) {
4113 wl1271_warning("Set ht information failed %d", ret);
4114 goto out;
4115 }
4116 }
4117
76a74c8a
EP		 4118 /* Handle arp filtering. Done after join. */
4119 if ((changed & BSS_CHANGED_ARP_FILTER) ||
4120 (!is_ibss && (changed & BSS_CHANGED_QOS))) {
4121 __be32 addr = bss_conf->arp_addr_list[0];
4122 wlvif->sta.qos = bss_conf->qos;
4123 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
4124
4125 if (bss_conf->arp_addr_cnt == 1 &&
4126 bss_conf->arp_filter_enabled) {
4127 wlvif->ip_addr = addr;
4128 /*
4129 * The template should have been configured only upon
4130 * association. however, it seems that the correct ip
4131 * isn't being set (when sending), so we have to
4132 * reconfigure the template upon every ip change.
4133 */
4134 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
4135 if (ret < 0) {
4136 wl1271_warning("build arp rsp failed: %d", ret);
4137 goto out;
4138 }
4139
4140 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
4141 (ACX_ARP_FILTER_ARP_FILTERING |
4142 ACX_ARP_FILTER_AUTO_ARP),
4143 addr);
4144 } else {
4145 wlvif->ip_addr = 0;
4146 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
4147 }
4148
4149 if (ret < 0)
4150 goto out;
4151 }
4152
e78a287a
AN		 4153out:
4154 return;
4155}
4156
4157static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
4158 struct ieee80211_vif *vif,
4159 struct ieee80211_bss_conf *bss_conf,
4160 u32 changed)
4161{
4162 struct wl1271 *wl = hw->priv;
536129c8
EP		 4163 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4164 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 4165 int ret;
4166
4167 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
4168 (int)changed);
4169
6b8bf5bc
AN		 4170 /*
4171 * make sure to cancel pending disconnections if our association
4172 * state changed
4173 */
4174 if (!is_ap && (changed & BSS_CHANGED_ASSOC))
4175 cancel_delayed_work_sync(&wl->connection_loss_work);
4176
b515d83a
EP		 4177 if (is_ap && (changed & BSS_CHANGED_BEACON_ENABLED) &&
4178 !bss_conf->enable_beacon)
4179 wl1271_tx_flush(wl);
4180
e78a287a
AN		 4181 mutex_lock(&wl->mutex);
4182
4cc53383 4183 if (unlikely(wl->state != WLCORE_STATE_ON))
e78a287a
AN		 4184 goto out;
4185
10c8cd01
EP		 4186 if (unlikely(!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)))
4187 goto out;
4188
a620865e 4189 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 4190 if (ret < 0)
4191 goto out;
4192
4193 if (is_ap)
4194 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
4195 else
4196 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
4197
f5fc0f86
LC		 4198 wl1271_ps_elp_sleep(wl);
4199
4200out:
4201 mutex_unlock(&wl->mutex);
4202}
4203
8a3a3c85
EP		 4204static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
4205 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 4206 const struct ieee80211_tx_queue_params *params)
4207{
4208 struct wl1271 *wl = hw->priv;
0603d891 4209 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4695dc91 4210 u8 ps_scheme;
488fc540 4211 int ret = 0;
c6999d83
KV		 4212
4213 mutex_lock(&wl->mutex);
4214
4215 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
4216
4695dc91
KV		 4217 if (params->uapsd)
4218 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
4219 else
4220 ps_scheme = CONF_PS_SCHEME_LEGACY;
4221
5b37ddfe 4222 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
c1b193eb 4223 goto out;
488fc540 4224
c1b193eb
EP		 4225 ret = wl1271_ps_elp_wakeup(wl);
4226 if (ret < 0)
4227 goto out;
488fc540 4228
c1b193eb
EP		 4229 /*
4230 * the txop is confed in units of 32us by the mac80211,
4231 * we need us
4232 */
0603d891 4233 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4234 params->cw_min, params->cw_max,
4235 params->aifs, params->txop << 5);
4236 if (ret < 0)
4237 goto out_sleep;
4238
0603d891 4239 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4240 CONF_CHANNEL_TYPE_EDCF,
4241 wl1271_tx_get_queue(queue),
4242 ps_scheme, CONF_ACK_POLICY_LEGACY,
4243 0, 0);
c82c1dde
KV		 4244
4245out_sleep:
c1b193eb 4246 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 4247
4248out:
4249 mutex_unlock(&wl->mutex);
4250
4251 return ret;
4252}
4253
37a41b4a
EP		 4254static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
4255 struct ieee80211_vif *vif)
bbbb538e
JO		 4256{
4257
4258 struct wl1271 *wl = hw->priv;
9c531149 4259 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbbb538e
JO		 4260 u64 mactime = ULLONG_MAX;
4261 int ret;
4262
4263 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
4264
4265 mutex_lock(&wl->mutex);
4266
4cc53383 4267 if (unlikely(wl->state != WLCORE_STATE_ON))
f8d9802f
JO		 4268 goto out;
4269
a620865e 4270 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 4271 if (ret < 0)
4272 goto out;
4273
9c531149 4274 ret = wl12xx_acx_tsf_info(wl, wlvif, &mactime);
bbbb538e
JO		 4275 if (ret < 0)
4276 goto out_sleep;
4277
4278out_sleep:
4279 wl1271_ps_elp_sleep(wl);
4280
4281out:
4282 mutex_unlock(&wl->mutex);
4283 return mactime;
4284}
f5fc0f86 4285
ece550d0
JL		 4286static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
4287 struct survey_info *survey)
4288{
ece550d0 4289 struct ieee80211_conf *conf = &hw->conf;
b739a42c 4290
ece550d0
JL		 4291 if (idx != 0)
4292 return -ENOENT;
b739a42c 4293
ece550d0 4294 survey->channel = conf->channel;
add779a0 4295 survey->filled = 0;
ece550d0
JL		 4296 return 0;
4297}
4298
409622ec 4299static int wl1271_allocate_sta(struct wl1271 *wl,
c7ffb902
EP		 4300 struct wl12xx_vif *wlvif,
4301 struct ieee80211_sta *sta)
f84f7d78
AN		 4302{
4303 struct wl1271_station *wl_sta;
c7ffb902 4304 int ret;
f84f7d78 4305
c7ffb902
EP		 4306
4307 if (wl->active_sta_count >= AP_MAX_STATIONS) {
f84f7d78
AN		 4308 wl1271_warning("could not allocate HLID - too much stations");
4309 return -EBUSY;
4310 }
4311
4312 wl_sta = (struct wl1271_station *)sta->drv_priv;
c7ffb902
EP		 4313 ret = wl12xx_allocate_link(wl, wlvif, &wl_sta->hlid);
4314 if (ret < 0) {
4315 wl1271_warning("could not allocate HLID - too many links");
4316 return -EBUSY;
4317 }
4318
4319 set_bit(wl_sta->hlid, wlvif->ap.sta_hlid_map);
b622d992 4320 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 4321 wl->active_sta_count++;
f84f7d78
AN		 4322 return 0;
4323}
4324
c7ffb902 4325void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
f84f7d78 4326{
c7ffb902 4327 if (!test_bit(hlid, wlvif->ap.sta_hlid_map))
f1acea9a
AN		 4328 return;
4329
c7ffb902 4330 clear_bit(hlid, wlvif->ap.sta_hlid_map);
b622d992 4331 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 4332 wl->links[hlid].ba_bitmap = 0;
b622d992
AN		 4333 __clear_bit(hlid, &wl->ap_ps_map);
4334 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
c7ffb902 4335 wl12xx_free_link(wl, wlvif, &hlid);
da03209e 4336 wl->active_sta_count--;
55df5afb
AN		 4337
4338 /*
4339 * rearm the tx watchdog when the last STA is freed - give the FW a
4340 * chance to return STA-buffered packets before complaining.
4341 */
4342 if (wl->active_sta_count == 0)
4343 wl12xx_rearm_tx_watchdog_locked(wl);
f84f7d78
AN		 4344}
4345
2d6cf2b5
EP		 4346static int wl12xx_sta_add(struct wl1271 *wl,
4347 struct wl12xx_vif *wlvif,
4348 struct ieee80211_sta *sta)
f84f7d78 4349{
c7ffb902 4350 struct wl1271_station *wl_sta;
f84f7d78
AN		 4351 int ret = 0;
4352 u8 hlid;
4353
f84f7d78
AN		 4354 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
4355
c7ffb902 4356 ret = wl1271_allocate_sta(wl, wlvif, sta);
f84f7d78 4357 if (ret < 0)
2d6cf2b5 4358 return ret;
f84f7d78 4359
c7ffb902
EP		 4360 wl_sta = (struct wl1271_station *)sta->drv_priv;
4361 hlid = wl_sta->hlid;
4362
1b92f15e 4363 ret = wl12xx_cmd_add_peer(wl, wlvif, sta, hlid);
f84f7d78 4364 if (ret < 0)
2d6cf2b5 4365 wl1271_free_sta(wl, wlvif, hlid);
f84f7d78 4366
2d6cf2b5
EP		 4367 return ret;
4368}
b67476ef 4369
2d6cf2b5
EP		 4370static int wl12xx_sta_remove(struct wl1271 *wl,
4371 struct wl12xx_vif *wlvif,
4372 struct ieee80211_sta *sta)
4373{
4374 struct wl1271_station *wl_sta;
4375 int ret = 0, id;
0b932ab9 4376
2d6cf2b5
EP		 4377 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4378
4379 wl_sta = (struct wl1271_station *)sta->drv_priv;
4380 id = wl_sta->hlid;
4381 if (WARN_ON(!test_bit(id, wlvif->ap.sta_hlid_map)))
4382 return -EINVAL;
f84f7d78 4383
2d6cf2b5 4384 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
409622ec 4385 if (ret < 0)
2d6cf2b5 4386 return ret;
409622ec 4387
2d6cf2b5 4388 wl1271_free_sta(wl, wlvif, wl_sta->hlid);
f84f7d78
AN		 4389 return ret;
4390}
4391
2d6cf2b5
EP		 4392static int wl12xx_update_sta_state(struct wl1271 *wl,
4393 struct wl12xx_vif *wlvif,
4394 struct ieee80211_sta *sta,
4395 enum ieee80211_sta_state old_state,
4396 enum ieee80211_sta_state new_state)
f84f7d78 4397{
f84f7d78 4398 struct wl1271_station *wl_sta;
2d6cf2b5
EP		 4399 u8 hlid;
4400 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
4401 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
4402 int ret;
f84f7d78 4403
2d6cf2b5
EP		 4404 wl_sta = (struct wl1271_station *)sta->drv_priv;
4405 hlid = wl_sta->hlid;
f84f7d78 4406
2d6cf2b5
EP		 4407 /* Add station (AP mode) */
4408 if (is_ap &&
4409 old_state == IEEE80211_STA_NOTEXIST &&
4410 new_state == IEEE80211_STA_NONE)
4411 return wl12xx_sta_add(wl, wlvif, sta);
4412
4413 /* Remove station (AP mode) */
4414 if (is_ap &&
4415 old_state == IEEE80211_STA_NONE &&
4416 new_state == IEEE80211_STA_NOTEXIST) {
4417 /* must not fail */
4418 wl12xx_sta_remove(wl, wlvif, sta);
4419 return 0;
4420 }
f84f7d78 4421
2d6cf2b5
EP		 4422 /* Authorize station (AP mode) */
4423 if (is_ap &&
4424 new_state == IEEE80211_STA_AUTHORIZED) {
4425 ret = wl12xx_cmd_set_peer_state(wl, hlid);
4426 if (ret < 0)
4427 return ret;
f84f7d78 4428
2d6cf2b5
EP		 4429 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true,
4430 hlid);
4431 return ret;
4432 }
f84f7d78 4433
9fd6f21b
EP		 4434 /* Authorize station */
4435 if (is_sta &&
4436 new_state == IEEE80211_STA_AUTHORIZED) {
4437 set_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
4438 return wl12xx_set_authorized(wl, wlvif);
4439 }
4440
4441 if (is_sta &&
4442 old_state == IEEE80211_STA_AUTHORIZED &&
4443 new_state == IEEE80211_STA_ASSOC) {
4444 clear_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
3230f35e 4445 clear_bit(WLVIF_FLAG_STA_STATE_SENT, &wlvif->flags);
9fd6f21b
EP		 4446 return 0;
4447 }
4448
2d6cf2b5
EP		 4449 return 0;
4450}
4451
4452static int wl12xx_op_sta_state(struct ieee80211_hw *hw,
4453 struct ieee80211_vif *vif,
4454 struct ieee80211_sta *sta,
4455 enum ieee80211_sta_state old_state,
4456 enum ieee80211_sta_state new_state)
4457{
4458 struct wl1271 *wl = hw->priv;
4459 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4460 int ret;
4461
4462 wl1271_debug(DEBUG_MAC80211, "mac80211 sta %d state=%d->%d",
4463 sta->aid, old_state, new_state);
4464
4465 mutex_lock(&wl->mutex);
4466
4cc53383 4467 if (unlikely(wl->state != WLCORE_STATE_ON)) {
2d6cf2b5 4468 ret = -EBUSY;
f84f7d78 4469 goto out;
2d6cf2b5 4470 }
f84f7d78 4471
a620865e 4472 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4473 if (ret < 0)
4474 goto out;
4475
2d6cf2b5 4476 ret = wl12xx_update_sta_state(wl, wlvif, sta, old_state, new_state);
f84f7d78 4477
f84f7d78 4478 wl1271_ps_elp_sleep(wl);
f84f7d78
AN		 4479out:
4480 mutex_unlock(&wl->mutex);
2d6cf2b5
EP		 4481 if (new_state < old_state)
4482 return 0;
f84f7d78
AN		 4483 return ret;
4484}
4485
4623ec7d
LC		 4486static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4487 struct ieee80211_vif *vif,
4488 enum ieee80211_ampdu_mlme_action action,
4489 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4490 u8 buf_size)
bbba3e68
LS		 4491{
4492 struct wl1271 *wl = hw->priv;
536129c8 4493 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4494 int ret;
0f9c8250
AN		 4495 u8 hlid, *ba_bitmap;
4496
4497 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4498 tid);
4499
4500 /* sanity check - the fields in FW are only 8bits wide */
4501 if (WARN_ON(tid > 0xFF))
4502 return -ENOTSUPP;
bbba3e68
LS		 4503
4504 mutex_lock(&wl->mutex);
4505
4cc53383 4506 if (unlikely(wl->state != WLCORE_STATE_ON)) {
bbba3e68
LS		 4507 ret = -EAGAIN;
4508 goto out;
4509 }
4510
536129c8 4511 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
154da67c 4512 hlid = wlvif->sta.hlid;
d0802abd 4513 ba_bitmap = &wlvif->sta.ba_rx_bitmap;
536129c8 4514 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4515 struct wl1271_station *wl_sta;
4516
4517 wl_sta = (struct wl1271_station *)sta->drv_priv;
4518 hlid = wl_sta->hlid;
4519 ba_bitmap = &wl->links[hlid].ba_bitmap;
4520 } else {
4521 ret = -EINVAL;
4522 goto out;
4523 }
4524
a620865e 4525 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4526 if (ret < 0)
4527 goto out;
4528
70559a06
SL		 4529 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4530 tid, action);
4531
bbba3e68
LS		 4532 switch (action) {
4533 case IEEE80211_AMPDU_RX_START:
d0802abd 4534 if (!wlvif->ba_support || !wlvif->ba_allowed) {
bbba3e68 4535 ret = -ENOTSUPP;
0f9c8250
AN		 4536 break;
4537 }
4538
4539 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4540 ret = -EBUSY;
4541 wl1271_error("exceeded max RX BA sessions");
4542 break;
4543 }
4544
4545 if (*ba_bitmap & BIT(tid)) {
4546 ret = -EINVAL;
4547 wl1271_error("cannot enable RX BA session on active "
4548 "tid: %d", tid);
4549 break;
4550 }
4551
4552 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4553 hlid);
4554 if (!ret) {
4555 *ba_bitmap |= BIT(tid);
4556 wl->ba_rx_session_count++;
bbba3e68
LS		 4557 }
4558 break;
4559
4560 case IEEE80211_AMPDU_RX_STOP:
0f9c8250 4561 if (!(*ba_bitmap & BIT(tid))) {
c954910b
AN		 4562 /*
4563 * this happens on reconfig - so only output a debug
4564 * message for now, and don't fail the function.
4565 */
4566 wl1271_debug(DEBUG_MAC80211,
4567 "no active RX BA session on tid: %d",
0f9c8250 4568 tid);
c954910b 4569 ret = 0;
0f9c8250
AN		 4570 break;
4571 }
4572
4573 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4574 hlid);
4575 if (!ret) {
4576 *ba_bitmap &= ~BIT(tid);
4577 wl->ba_rx_session_count--;
4578 }
bbba3e68
LS		 4579 break;
4580
4581 /*
4582 * The BA initiator session management in FW independently.
4583 * Falling break here on purpose for all TX APDU commands.
4584 */
4585 case IEEE80211_AMPDU_TX_START:
4586 case IEEE80211_AMPDU_TX_STOP:
4587 case IEEE80211_AMPDU_TX_OPERATIONAL:
4588 ret = -EINVAL;
4589 break;
4590
4591 default:
4592 wl1271_error("Incorrect ampdu action id=%x\n", action);
4593 ret = -EINVAL;
4594 }
4595
4596 wl1271_ps_elp_sleep(wl);
4597
4598out:
4599 mutex_unlock(&wl->mutex);
4600
4601 return ret;
4602}
4603
af7fbb28
EP		 4604static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4605 struct ieee80211_vif *vif,
4606 const struct cfg80211_bitrate_mask *mask)
4607{
83587505 4608 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
af7fbb28 4609 struct wl1271 *wl = hw->priv;
d6fa37c9 4610 int i, ret = 0;
af7fbb28
EP		 4611
4612 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4613 mask->control[NL80211_BAND_2GHZ].legacy,
4614 mask->control[NL80211_BAND_5GHZ].legacy);
4615
4616 mutex_lock(&wl->mutex);
4617
091185d6 4618 for (i = 0; i < WLCORE_NUM_BANDS; i++)
83587505 4619 wlvif->bitrate_masks[i] =
af7fbb28
EP		 4620 wl1271_tx_enabled_rates_get(wl,
4621 mask->control[i].legacy,
4622 i);
d6fa37c9 4623
4cc53383 4624 if (unlikely(wl->state != WLCORE_STATE_ON))
d6fa37c9
EP		 4625 goto out;
4626
4627 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
4628 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) {
4629
4630 ret = wl1271_ps_elp_wakeup(wl);
4631 if (ret < 0)
4632 goto out;
4633
4634 wl1271_set_band_rate(wl, wlvif);
4635 wlvif->basic_rate =
4636 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
4637 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4638
4639 wl1271_ps_elp_sleep(wl);
4640 }
4641out:
af7fbb28
EP		 4642 mutex_unlock(&wl->mutex);
4643
d6fa37c9 4644 return ret;
af7fbb28
EP		 4645}
4646
6d158ff3
SL		 4647static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4648 struct ieee80211_channel_switch *ch_switch)
4649{
4650 struct wl1271 *wl = hw->priv;
52630c5d 4651 struct wl12xx_vif *wlvif;
6d158ff3
SL		 4652 int ret;
4653
4654 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4655
b9239b66
AN		 4656 wl1271_tx_flush(wl);
4657
6d158ff3
SL		 4658 mutex_lock(&wl->mutex);
4659
4cc53383 4660 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
6e8cd331
EP		 4661 wl12xx_for_each_wlvif_sta(wl, wlvif) {
4662 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
4663 ieee80211_chswitch_done(vif, false);
4664 }
4665 goto out;
4cc53383
IY		 4666 } else if (unlikely(wl->state != WLCORE_STATE_ON)) {
4667 goto out;
6d158ff3
SL		 4668 }
4669
4670 ret = wl1271_ps_elp_wakeup(wl);
4671 if (ret < 0)
4672 goto out;
4673
52630c5d
EP		 4674 /* TODO: change mac80211 to pass vif as param */
4675 wl12xx_for_each_wlvif_sta(wl, wlvif) {
8332f0f6 4676 ret = wl12xx_cmd_channel_switch(wl, wlvif, ch_switch);
6d158ff3 4677
52630c5d
EP		 4678 if (!ret)
4679 set_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags);
4680 }
6d158ff3
SL		 4681
4682 wl1271_ps_elp_sleep(wl);
4683
4684out:
4685 mutex_unlock(&wl->mutex);
4686}
4687
d8ae5a25
EP		 4688static void wlcore_op_flush(struct ieee80211_hw *hw, bool drop)
4689{
4690 struct wl1271 *wl = hw->priv;
4691
4692 wl1271_tx_flush(wl);
4693}
4694
33437893
AN		 4695static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4696{
4697 struct wl1271 *wl = hw->priv;
4698 bool ret = false;
4699
4700 mutex_lock(&wl->mutex);
4701
4cc53383 4702 if (unlikely(wl->state != WLCORE_STATE_ON))
33437893
AN		 4703 goto out;
4704
4705 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4706 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4707out:
4708 mutex_unlock(&wl->mutex);
4709
4710 return ret;
4711}
4712
f5fc0f86
LC		 4713/* can't be const, mac80211 writes to this */
4714static struct ieee80211_rate wl1271_rates[] = {
4715 { .bitrate = 10,
2b60100b
JO		 4716 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4717 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4718 { .bitrate = 20,
2b60100b
JO		 4719 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4720 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4721 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4722 { .bitrate = 55,
2b60100b
JO		 4723 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4724 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4725 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4726 { .bitrate = 110,
2b60100b
JO		 4727 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4728 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4729 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4730 { .bitrate = 60,
2b60100b
JO		 4731 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4732 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4733 { .bitrate = 90,
2b60100b
JO		 4734 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4735 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4736 { .bitrate = 120,
2b60100b
JO		 4737 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4738 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4739 { .bitrate = 180,
2b60100b
JO		 4740 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4741 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4742 { .bitrate = 240,
2b60100b
JO		 4743 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4744 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4745 { .bitrate = 360,
2b60100b
JO		 4746 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4747 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4748 { .bitrate = 480,
2b60100b
JO		 4749 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4750 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4751 { .bitrate = 540,
2b60100b
JO		 4752 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4753 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4754};
4755
fa97f46b 4756/* can't be const, mac80211 writes to this */
f5fc0f86 4757static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4758 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4759 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4760 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4761 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4762 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4763 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4764 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4765 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4766 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4767 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4768 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4769 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4770 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4771 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4772};
4773
4774/* can't be const, mac80211 writes to this */
4775static struct ieee80211_supported_band wl1271_band_2ghz = {
4776 .channels = wl1271_channels,
4777 .n_channels = ARRAY_SIZE(wl1271_channels),
4778 .bitrates = wl1271_rates,
4779 .n_bitrates = ARRAY_SIZE(wl1271_rates),
4780};
4781
1ebec3d7
TP		 4782/* 5 GHz data rates for WL1273 */
4783static struct ieee80211_rate wl1271_rates_5ghz[] = {
4784 { .bitrate = 60,
4785 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4786 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4787 { .bitrate = 90,
4788 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4789 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4790 { .bitrate = 120,
4791 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4792 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4793 { .bitrate = 180,
4794 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4795 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4796 { .bitrate = 240,
4797 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4798 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4799 { .bitrate = 360,
4800 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4801 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4802 { .bitrate = 480,
4803 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4804 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4805 { .bitrate = 540,
4806 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4807 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4808};
4809
fa97f46b 4810/* 5 GHz band channels for WL1273 */
1ebec3d7 4811static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4812 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4813 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4814 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4815 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4816 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4817 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4818 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4819 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4820 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4821 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4822 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4823 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4824 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4825 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4826 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4827 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4828 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4829 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4830 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4831 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4832 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4833 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4834 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4835 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4836 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4837 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4838 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4839 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4840 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4841 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4842 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4843 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4844 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4845 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4846};
4847
1ebec3d7
TP		 4848static struct ieee80211_supported_band wl1271_band_5ghz = {
4849 .channels = wl1271_channels_5ghz,
4850 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4851 .bitrates = wl1271_rates_5ghz,
4852 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
f876bb9a
JO		 4853};
4854
f5fc0f86
LC		 4855static const struct ieee80211_ops wl1271_ops = {
4856 .start = wl1271_op_start,
c24ec83b 4857 .stop = wlcore_op_stop,
f5fc0f86
LC		 4858 .add_interface = wl1271_op_add_interface,
4859 .remove_interface = wl1271_op_remove_interface,
c0fad1b7 4860 .change_interface = wl12xx_op_change_interface,
f634a4e7 4861#ifdef CONFIG_PM
402e4861
EP		 4862 .suspend = wl1271_op_suspend,
4863 .resume = wl1271_op_resume,
f634a4e7 4864#endif
f5fc0f86 4865 .config = wl1271_op_config,
c87dec9f 4866 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4867 .configure_filter = wl1271_op_configure_filter,
4868 .tx = wl1271_op_tx,
a1c597f2 4869 .set_key = wlcore_op_set_key,
f5fc0f86 4870 .hw_scan = wl1271_op_hw_scan,
73ecce31 4871 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4872 .sched_scan_start = wl1271_op_sched_scan_start,
4873 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4874 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4875 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4876 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4877 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4878 .get_tsf = wl1271_op_get_tsf,
ece550d0 4879 .get_survey = wl1271_op_get_survey,
2d6cf2b5 4880 .sta_state = wl12xx_op_sta_state,
bbba3e68 4881 .ampdu_action = wl1271_op_ampdu_action,
33437893 4882 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 4883 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 4884 .channel_switch = wl12xx_op_channel_switch,
d8ae5a25 4885 .flush = wlcore_op_flush,
c8c90873 4886 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4887};
4888
f876bb9a 4889
43a8bc5a 4890u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
f876bb9a
JO		 4891{
4892 u8 idx;
4893
43a8bc5a 4894 BUG_ON(band >= 2);
f876bb9a 4895
43a8bc5a 4896 if (unlikely(rate >= wl->hw_tx_rate_tbl_size)) {
f876bb9a
JO		 4897 wl1271_error("Illegal RX rate from HW: %d", rate);
4898 return 0;
4899 }
4900
43a8bc5a 4901 idx = wl->band_rate_to_idx[band][rate];
f876bb9a
JO		 4902 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4903 wl1271_error("Unsupported RX rate from HW: %d", rate);
4904 return 0;
4905 }
4906
4907 return idx;
4908}
4909
7fc3a864
JO		 4910static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4911 struct device_attribute *attr,
4912 char *buf)
4913{
4914 struct wl1271 *wl = dev_get_drvdata(dev);
4915 ssize_t len;
4916
2f63b011 4917 len = PAGE_SIZE;
7fc3a864
JO		 4918
4919 mutex_lock(&wl->mutex);
4920 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4921 wl->sg_enabled);
4922 mutex_unlock(&wl->mutex);
4923
4924 return len;
4925
4926}
4927
4928static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4929 struct device_attribute *attr,
4930 const char *buf, size_t count)
4931{
4932 struct wl1271 *wl = dev_get_drvdata(dev);
4933 unsigned long res;
4934 int ret;
4935
6277ed65 4936 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4937 if (ret < 0) {
4938 wl1271_warning("incorrect value written to bt_coex_mode");
4939 return count;
4940 }
4941
4942 mutex_lock(&wl->mutex);
4943
4944 res = !!res;
4945
4946 if (res == wl->sg_enabled)
4947 goto out;
4948
4949 wl->sg_enabled = res;
4950
4cc53383 4951 if (unlikely(wl->state != WLCORE_STATE_ON))
7fc3a864
JO		 4952 goto out;
4953
a620865e 4954 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4955 if (ret < 0)
4956 goto out;
4957
4958 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4959 wl1271_ps_elp_sleep(wl);
4960
4961 out:
4962 mutex_unlock(&wl->mutex);
4963 return count;
4964}
4965
4966static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4967 wl1271_sysfs_show_bt_coex_state,
4968 wl1271_sysfs_store_bt_coex_state);
4969
d717fd61
JO		 4970static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4971 struct device_attribute *attr,
4972 char *buf)
4973{
4974 struct wl1271 *wl = dev_get_drvdata(dev);
4975 ssize_t len;
4976
2f63b011 4977 len = PAGE_SIZE;
d717fd61
JO		 4978
4979 mutex_lock(&wl->mutex);
4980 if (wl->hw_pg_ver >= 0)
4981 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4982 else
4983 len = snprintf(buf, len, "n/a\n");
4984 mutex_unlock(&wl->mutex);
4985
4986 return len;
4987}
4988
6f07b72a 4989static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4990 wl1271_sysfs_show_hw_pg_ver, NULL);
4991
95dac04f
IY		 4992static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4993 struct bin_attribute *bin_attr,
4994 char *buffer, loff_t pos, size_t count)
4995{
4996 struct device *dev = container_of(kobj, struct device, kobj);
4997 struct wl1271 *wl = dev_get_drvdata(dev);
4998 ssize_t len;
4999 int ret;
5000
5001 ret = mutex_lock_interruptible(&wl->mutex);
5002 if (ret < 0)
5003 return -ERESTARTSYS;
5004
5005 /* Let only one thread read the log at a time, blocking others */
5006 while (wl->fwlog_size == 0) {
5007 DEFINE_WAIT(wait);
5008
5009 prepare_to_wait_exclusive(&wl->fwlog_waitq,
5010 &wait,
5011 TASK_INTERRUPTIBLE);
5012
5013 if (wl->fwlog_size != 0) {
5014 finish_wait(&wl->fwlog_waitq, &wait);
5015 break;
5016 }
5017
5018 mutex_unlock(&wl->mutex);
5019
5020 schedule();
5021 finish_wait(&wl->fwlog_waitq, &wait);
5022
5023 if (signal_pending(current))
5024 return -ERESTARTSYS;
5025
5026 ret = mutex_lock_interruptible(&wl->mutex);
5027 if (ret < 0)
5028 return -ERESTARTSYS;
5029 }
5030
5031 /* Check if the fwlog is still valid */
5032 if (wl->fwlog_size < 0) {
5033 mutex_unlock(&wl->mutex);
5034 return 0;
5035 }
5036
5037 /* Seeking is not supported - old logs are not kept. Disregard pos. */
5038 len = min(count, (size_t)wl->fwlog_size);
5039 wl->fwlog_size -= len;
5040 memcpy(buffer, wl->fwlog, len);
5041
5042 /* Make room for new messages */
5043 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
5044
5045 mutex_unlock(&wl->mutex);
5046
5047 return len;
5048}
5049
5050static struct bin_attribute fwlog_attr = {
5051 .attr = {.name = "fwlog", .mode = S_IRUSR},
5052 .read = wl1271_sysfs_read_fwlog,
5053};
5054
22479972 5055static void wl1271_connection_loss_work(struct work_struct *work)
5f561f68
BM		 5056{
5057 struct delayed_work *dwork;
5058 struct wl1271 *wl;
5059 struct ieee80211_vif *vif;
5060 struct wl12xx_vif *wlvif;
5061
5062 dwork = container_of(work, struct delayed_work, work);
5063 wl = container_of(dwork, struct wl1271, connection_loss_work);
5064
5065 wl1271_info("Connection loss work.");
5066
5067 mutex_lock(&wl->mutex);
5068
4cc53383 5069 if (unlikely(wl->state != WLCORE_STATE_ON))
5f561f68
BM		 5070 goto out;
5071
5072 /* Call mac80211 connection loss */
5073 wl12xx_for_each_wlvif_sta(wl, wlvif) {
5074 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
5075 goto out;
5076 vif = wl12xx_wlvif_to_vif(wlvif);
5077 ieee80211_connection_loss(vif);
5078 }
5079out:
5080 mutex_unlock(&wl->mutex);
5081}
5082
f4afbed9 5083static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
5e037e74
LC		 5084{
5085 int i;
5086
f4afbed9
AN		 5087 wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x",
5088 oui, nic);
5e037e74 5089
f4afbed9 5090 if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
5e037e74
LC		 5091 wl1271_warning("NIC part of the MAC address wraps around!");
5092
f4afbed9 5093 for (i = 0; i < wl->num_mac_addr; i++) {
5e037e74
LC		 5094 wl->addresses[i].addr[0] = (u8)(oui >> 16);
5095 wl->addresses[i].addr[1] = (u8)(oui >> 8);
5096 wl->addresses[i].addr[2] = (u8) oui;
5097 wl->addresses[i].addr[3] = (u8)(nic >> 16);
5098 wl->addresses[i].addr[4] = (u8)(nic >> 8);
5099 wl->addresses[i].addr[5] = (u8) nic;
5100 nic++;
5101 }
5102
f4afbed9
AN		 5103 /* we may be one address short at the most */
5104 WARN_ON(wl->num_mac_addr + 1 < WLCORE_NUM_MAC_ADDRESSES);
5105
5106 /*
5107 * turn on the LAA bit in the first address and use it as
5108 * the last address.
5109 */
5110 if (wl->num_mac_addr < WLCORE_NUM_MAC_ADDRESSES) {
5111 int idx = WLCORE_NUM_MAC_ADDRESSES - 1;
5112 memcpy(&wl->addresses[idx], &wl->addresses[0],
5113 sizeof(wl->addresses[0]));
5114 /* LAA bit */
5115 wl->addresses[idx].addr[2] |= BIT(1);
5116 }
5117
5118 wl->hw->wiphy->n_addresses = WLCORE_NUM_MAC_ADDRESSES;
5e037e74
LC		 5119 wl->hw->wiphy->addresses = wl->addresses;
5120}
5121
30c5dbd1
LC		 5122static int wl12xx_get_hw_info(struct wl1271 *wl)
5123{
5124 int ret;
30c5dbd1
LC		 5125
5126 ret = wl12xx_set_power_on(wl);
5127 if (ret < 0)
4fb4e0be 5128 return ret;
30c5dbd1 5129
6134323f
IY		 5130 ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &wl->chip.id);
5131 if (ret < 0)
5132 goto out;
30c5dbd1 5133
00782136
LC		 5134 wl->fuse_oui_addr = 0;
5135 wl->fuse_nic_addr = 0;
30c5dbd1 5136
6134323f
IY		 5137 ret = wl->ops->get_pg_ver(wl, &wl->hw_pg_ver);
5138 if (ret < 0)
5139 goto out;
30c5dbd1 5140
30d9b4a5 5141 if (wl->ops->get_mac)
6134323f 5142 ret = wl->ops->get_mac(wl);
5e037e74 5143
30c5dbd1 5144out:
6134323f 5145 wl1271_power_off(wl);
30c5dbd1
LC		 5146 return ret;
5147}
5148
4b32a2c9 5149static int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 5150{
5151 int ret;
5e037e74 5152 u32 oui_addr = 0, nic_addr = 0;
f5fc0f86
LC		 5153
5154 if (wl->mac80211_registered)
5155 return 0;
5156
6f8d6b20 5157 if (wl->nvs_len >= 12) {
bc765bf3
SL		 5158 /* NOTE: The wl->nvs->nvs element must be first, in
5159 * order to simplify the casting, we assume it is at
5160 * the beginning of the wl->nvs structure.
5161 */
5162 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6 5163
5e037e74
LC		 5164 oui_addr =
5165 (nvs_ptr[11] << 16) + (nvs_ptr[10] << 8) + nvs_ptr[6];
5166 nic_addr =
5167 (nvs_ptr[5] << 16) + (nvs_ptr[4] << 8) + nvs_ptr[3];
5168 }
5169
5170 /* if the MAC address is zeroed in the NVS derive from fuse */
5171 if (oui_addr == 0 && nic_addr == 0) {
5172 oui_addr = wl->fuse_oui_addr;
5173 /* fuse has the BD_ADDR, the WLAN addresses are the next two */
5174 nic_addr = wl->fuse_nic_addr + 1;
31d26ec6
AN		 5175 }
5176
f4afbed9 5177 wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr);
f5fc0f86
LC		 5178
5179 ret = ieee80211_register_hw(wl->hw);
5180 if (ret < 0) {
5181 wl1271_error("unable to register mac80211 hw: %d", ret);
30c5dbd1 5182 goto out;
f5fc0f86
LC		 5183 }
5184
5185 wl->mac80211_registered = true;
5186
d60080ae
EP		 5187 wl1271_debugfs_init(wl);
5188
f5fc0f86
LC		 5189 wl1271_notice("loaded");
5190
30c5dbd1
LC		 5191out:
5192 return ret;
f5fc0f86
LC		 5193}
5194
4b32a2c9 5195static void wl1271_unregister_hw(struct wl1271 *wl)
3b56dd6a 5196{
3fcdab70 5197 if (wl->plt)
f3df1331 5198 wl1271_plt_stop(wl);
4ae3fa87 5199
3b56dd6a
TP		 5200 ieee80211_unregister_hw(wl->hw);
5201 wl->mac80211_registered = false;
5202
5203}
3b56dd6a 5204
bcab320b
EP		 5205static const struct ieee80211_iface_limit wlcore_iface_limits[] = {
5206 {
e7a6ba29 5207 .max = 3,
bcab320b
EP		 5208 .types = BIT(NL80211_IFTYPE_STATION),
5209 },
5210 {
5211 .max = 1,
5212 .types = BIT(NL80211_IFTYPE_AP) |
5213 BIT(NL80211_IFTYPE_P2P_GO) |
5214 BIT(NL80211_IFTYPE_P2P_CLIENT),
5215 },
5216};
5217
5218static const struct ieee80211_iface_combination
5219wlcore_iface_combinations[] = {
5220 {
5221 .num_different_channels = 1,
e7a6ba29 5222 .max_interfaces = 3,
bcab320b
EP		 5223 .limits = wlcore_iface_limits,
5224 .n_limits = ARRAY_SIZE(wlcore_iface_limits),
5225 },
5226};
5227
4b32a2c9 5228static int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 5229{
7a55724e
JO		 5230 static const u32 cipher_suites[] = {
5231 WLAN_CIPHER_SUITE_WEP40,
5232 WLAN_CIPHER_SUITE_WEP104,
5233 WLAN_CIPHER_SUITE_TKIP,
5234 WLAN_CIPHER_SUITE_CCMP,
5235 WL1271_CIPHER_SUITE_GEM,
5236 };
5237
2c0133a4
AN		 5238 /* The tx descriptor buffer */
5239 wl->hw->extra_tx_headroom = sizeof(struct wl1271_tx_hw_descr);
5240
5241 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
5242 wl->hw->extra_tx_headroom += WL1271_EXTRA_SPACE_TKIP;
f5fc0f86
LC		 5243
5244 /* unit us */
5245 /* FIXME: find a proper value */
5246 wl->hw->channel_change_time = 10000;
50c500ad 5247 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 5248
5249 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
0a34332f 5250 IEEE80211_HW_SUPPORTS_PS |
f1d63a59 5251 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
4695dc91 5252 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 5253 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 5254 IEEE80211_HW_CONNECTION_MONITOR |
25eaea30 5255 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 5256 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 5257 IEEE80211_HW_AP_LINK_PS |
5258 IEEE80211_HW_AMPDU_AGGREGATION |
79aba1ba
EP		 5259 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
5260 IEEE80211_HW_SCAN_WHILE_IDLE;
f5fc0f86 5261
7a55724e
JO		 5262 wl->hw->wiphy->cipher_suites = cipher_suites;
5263 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
5264
e0d8bbf0 5265 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 5266 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
5267 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 5268 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 5269 wl->hw->wiphy->max_sched_scan_ssids = 16;
5270 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 5271 /*
5272 * Maximum length of elements in scanning probe request templates
5273 * should be the maximum length possible for a template, without
5274 * the IEEE80211 header of the template
5275 */
c08e371a 5276 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
ea559b46 5277 sizeof(struct ieee80211_header);
a8aaaf53 5278
c08e371a 5279 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
c9e79a47
LC		 5280 sizeof(struct ieee80211_header);
5281
81ddbb5c
JB		 5282 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD |
5283 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
1ec23f7f 5284
4a31c11c
LC		 5285 /* make sure all our channels fit in the scanned_ch bitmask */
5286 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
5287 ARRAY_SIZE(wl1271_channels_5ghz) >
5288 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 5289 /*
5290 * We keep local copies of the band structs because we need to
5291 * modify them on a per-device basis.
5292 */
5293 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
5294 sizeof(wl1271_band_2ghz));
bfb92ca1
EP		 5295 memcpy(&wl->bands[IEEE80211_BAND_2GHZ].ht_cap,
5296 &wl->ht_cap[IEEE80211_BAND_2GHZ],
5297 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5298 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
5299 sizeof(wl1271_band_5ghz));
bfb92ca1
EP		 5300 memcpy(&wl->bands[IEEE80211_BAND_5GHZ].ht_cap,
5301 &wl->ht_cap[IEEE80211_BAND_5GHZ],
5302 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5303
5304 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
5305 &wl->bands[IEEE80211_BAND_2GHZ];
5306 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
5307 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 5308
12bd8949 5309 wl->hw->queues = 4;
31627dc5 5310 wl->hw->max_rates = 1;
12bd8949 5311
b7417d93
JO		 5312 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
5313
9c1b190b
AN		 5314 /* the FW answers probe-requests in AP-mode */
5315 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
5316 wl->hw->wiphy->probe_resp_offload =
5317 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
5318 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
5319 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
5320
bcab320b
EP		 5321 /* allowed interface combinations */
5322 wl->hw->wiphy->iface_combinations = wlcore_iface_combinations;
5323 wl->hw->wiphy->n_iface_combinations =
5324 ARRAY_SIZE(wlcore_iface_combinations);
5325
a390e85c 5326 SET_IEEE80211_DEV(wl->hw, wl->dev);
f5fc0f86 5327
f84f7d78 5328 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 5329 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 5330
ba421f8f 5331 wl->hw->max_rx_aggregation_subframes = wl->conf.ht.rx_ba_win_size;
4c9cfa78 5332
f5fc0f86
LC		 5333 return 0;
5334}
5335
f5fc0f86 5336#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 5337
26a309c7 5338struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size)
f5fc0f86 5339{
f5fc0f86
LC		 5340 struct ieee80211_hw *hw;
5341 struct wl1271 *wl;
a8c0ddb5 5342 int i, j, ret;
1f37cbc9 5343 unsigned int order;
f5fc0f86 5344
c7ffb902 5345 BUILD_BUG_ON(AP_MAX_STATIONS > WL12XX_MAX_LINKS);
f80c2d12 5346
f5fc0f86
LC		 5347 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
5348 if (!hw) {
5349 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 5350 ret = -ENOMEM;
3b56dd6a
TP		 5351 goto err_hw_alloc;
5352 }
5353
f5fc0f86
LC		 5354 wl = hw->priv;
5355 memset(wl, 0, sizeof(*wl));
5356
96e0c683
AN		 5357 wl->priv = kzalloc(priv_size, GFP_KERNEL);
5358 if (!wl->priv) {
5359 wl1271_error("could not alloc wl priv");
5360 ret = -ENOMEM;
5361 goto err_priv_alloc;
5362 }
5363
87627214 5364 INIT_LIST_HEAD(&wl->wlvif_list);
01c09162 5365
f5fc0f86 5366 wl->hw = hw;
f5fc0f86 5367
a8c0ddb5 5368 for (i = 0; i < NUM_TX_QUEUES; i++)
c7ffb902 5369 for (j = 0; j < WL12XX_MAX_LINKS; j++)
a8c0ddb5
AN		 5370 skb_queue_head_init(&wl->links[j].tx_queue[i]);
5371
a620865e
IY		 5372 skb_queue_head_init(&wl->deferred_rx_queue);
5373 skb_queue_head_init(&wl->deferred_tx_queue);
5374
37b70a81 5375 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
a620865e 5376 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 5377 INIT_WORK(&wl->tx_work, wl1271_tx_work);
5378 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
5379 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
55df5afb 5380 INIT_DELAYED_WORK(&wl->tx_watchdog_work, wl12xx_tx_watchdog_work);
5f561f68
BM		 5381 INIT_DELAYED_WORK(&wl->connection_loss_work,
5382 wl1271_connection_loss_work);
77ddaa10 5383
92ef8960
EP		 5384 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
5385 if (!wl->freezable_wq) {
5386 ret = -ENOMEM;
5387 goto err_hw;
5388 }
5389
f5fc0f86 5390 wl->channel = WL1271_DEFAULT_CHANNEL;
f5fc0f86 5391 wl->rx_counter = 0;
f5fc0f86 5392 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 5393 wl->band = IEEE80211_BAND_2GHZ;
83d08d3f 5394 wl->channel_type = NL80211_CHAN_NO_HT;
830fb67b 5395 wl->flags = 0;
7fc3a864 5396 wl->sg_enabled = true;
66340e5b 5397 wl->sleep_auth = WL1271_PSM_ILLEGAL;
d717fd61 5398 wl->hw_pg_ver = -1;
b622d992
AN		 5399 wl->ap_ps_map = 0;
5400 wl->ap_fw_ps_map = 0;
606ea9fa 5401 wl->quirks = 0;
341b7cde 5402 wl->platform_quirks = 0;
33c2c06c 5403 wl->sched_scanning = false;
f4df1bd5 5404 wl->system_hlid = WL12XX_SYSTEM_HLID;
da03209e 5405 wl->active_sta_count = 0;
95dac04f
IY		 5406 wl->fwlog_size = 0;
5407 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 5408
f4df1bd5
EP		 5409 /* The system link is always allocated */
5410 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
5411
25eeb9e3 5412 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
72b0624f 5413 for (i = 0; i < wl->num_tx_desc; i++)
f5fc0f86
LC		 5414 wl->tx_frames[i] = NULL;
5415
5416 spin_lock_init(&wl->wl_lock);
5417
4cc53383 5418 wl->state = WLCORE_STATE_OFF;
3fcdab70 5419 wl->fw_type = WL12XX_FW_TYPE_NONE;
f5fc0f86 5420 mutex_init(&wl->mutex);
2c38849f 5421 mutex_init(&wl->flush_mutex);
6f8d6b20 5422 init_completion(&wl->nvs_loading_complete);
f5fc0f86 5423
26a309c7 5424 order = get_order(aggr_buf_size);
1f37cbc9
IY		 5425 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
5426 if (!wl->aggr_buf) {
5427 ret = -ENOMEM;
92ef8960 5428 goto err_wq;
1f37cbc9 5429 }
26a309c7 5430 wl->aggr_buf_size = aggr_buf_size;
1f37cbc9 5431
990f5de7
IY		 5432 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
5433 if (!wl->dummy_packet) {
5434 ret = -ENOMEM;
5435 goto err_aggr;
5436 }
5437
95dac04f
IY		 5438 /* Allocate one page for the FW log */
5439 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
5440 if (!wl->fwlog) {
5441 ret = -ENOMEM;
5442 goto err_dummy_packet;
5443 }
5444
fd492ed7 5445 wl->mbox = kmalloc(sizeof(*wl->mbox), GFP_KERNEL | GFP_DMA);
690142e9
MG		 5446 if (!wl->mbox) {
5447 ret = -ENOMEM;
5448 goto err_fwlog;
5449 }
5450
c332a4b8 5451 return hw;
a1dd8187 5452
690142e9
MG		 5453err_fwlog:
5454 free_page((unsigned long)wl->fwlog);
5455
990f5de7
IY		 5456err_dummy_packet:
5457 dev_kfree_skb(wl->dummy_packet);
5458
1f37cbc9
IY		 5459err_aggr:
5460 free_pages((unsigned long)wl->aggr_buf, order);
5461
92ef8960
EP		 5462err_wq:
5463 destroy_workqueue(wl->freezable_wq);
5464
a1dd8187 5465err_hw:
3b56dd6a 5466 wl1271_debugfs_exit(wl);
96e0c683
AN		 5467 kfree(wl->priv);
5468
5469err_priv_alloc:
3b56dd6a
TP		 5470 ieee80211_free_hw(hw);
5471
5472err_hw_alloc:
a1dd8187 5473
a1dd8187 5474 return ERR_PTR(ret);
c332a4b8 5475}
ffeb501c 5476EXPORT_SYMBOL_GPL(wlcore_alloc_hw);
c332a4b8 5477
ffeb501c 5478int wlcore_free_hw(struct wl1271 *wl)
c332a4b8 5479{
95dac04f
IY		 5480 /* Unblock any fwlog readers */
5481 mutex_lock(&wl->mutex);
5482 wl->fwlog_size = -1;
5483 wake_up_interruptible_all(&wl->fwlog_waitq);
5484 mutex_unlock(&wl->mutex);
5485
f79f890c 5486 device_remove_bin_file(wl->dev, &fwlog_attr);
6f07b72a 5487
f79f890c 5488 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
6f07b72a 5489
f79f890c 5490 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
95dac04f 5491 free_page((unsigned long)wl->fwlog);
990f5de7 5492 dev_kfree_skb(wl->dummy_packet);
26a309c7 5493 free_pages((unsigned long)wl->aggr_buf, get_order(wl->aggr_buf_size));
c332a4b8
TP		 5494
5495 wl1271_debugfs_exit(wl);
5496
c332a4b8
TP		 5497 vfree(wl->fw);
5498 wl->fw = NULL;
3fcdab70 5499 wl->fw_type = WL12XX_FW_TYPE_NONE;
c332a4b8
TP		 5500 kfree(wl->nvs);
5501 wl->nvs = NULL;
5502
0afd04e5 5503 kfree(wl->fw_status_1);
c332a4b8 5504 kfree(wl->tx_res_if);
92ef8960 5505 destroy_workqueue(wl->freezable_wq);
c332a4b8 5506
96e0c683 5507 kfree(wl->priv);
c332a4b8
TP		 5508 ieee80211_free_hw(wl->hw);
5509
5510 return 0;
5511}
ffeb501c 5512EXPORT_SYMBOL_GPL(wlcore_free_hw);
50b3eb4b 5513
a390e85c
FB		 5514static irqreturn_t wl12xx_hardirq(int irq, void *cookie)
5515{
5516 struct wl1271 *wl = cookie;
5517 unsigned long flags;
5518
5519 wl1271_debug(DEBUG_IRQ, "IRQ");
5520
5521 /* complete the ELP completion */
5522 spin_lock_irqsave(&wl->wl_lock, flags);
5523 set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
5524 if (wl->elp_compl) {
5525 complete(wl->elp_compl);
5526 wl->elp_compl = NULL;
5527 }
5528
5529 if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
5530 /* don't enqueue a work right now. mark it as pending */
5531 set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
5532 wl1271_debug(DEBUG_IRQ, "should not enqueue work");
5533 disable_irq_nosync(wl->irq);
5534 pm_wakeup_event(wl->dev, 0);
5535 spin_unlock_irqrestore(&wl->wl_lock, flags);
5536 return IRQ_HANDLED;
5537 }
5538 spin_unlock_irqrestore(&wl->wl_lock, flags);
5539
5540 return IRQ_WAKE_THREAD;
5541}
5542
6f8d6b20 5543static void wlcore_nvs_cb(const struct firmware *fw, void *context)
ce2a217c 5544{
6f8d6b20
IY		 5545 struct wl1271 *wl = context;
5546 struct platform_device *pdev = wl->pdev;
a390e85c 5547 struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
a390e85c 5548 unsigned long irqflags;
ffeb501c 5549 int ret;
a390e85c 5550
6f8d6b20
IY		 5551 if (fw) {
5552 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
5553 if (!wl->nvs) {
5554 wl1271_error("Could not allocate nvs data");
5555 goto out;
5556 }
5557 wl->nvs_len = fw->size;
5558 } else {
5559 wl1271_debug(DEBUG_BOOT, "Could not get nvs file %s",
5560 WL12XX_NVS_NAME);
5561 wl->nvs = NULL;
5562 wl->nvs_len = 0;
a390e85c
FB		 5563 }
5564
3992eb2b
IY		 5565 ret = wl->ops->setup(wl);
5566 if (ret < 0)
6f8d6b20 5567 goto out_free_nvs;
3992eb2b 5568
72b0624f
AN		 5569 BUG_ON(wl->num_tx_desc > WLCORE_MAX_TX_DESCRIPTORS);
5570
e87288f0
LC		 5571 /* adjust some runtime configuration parameters */
5572 wlcore_adjust_conf(wl);
5573
a390e85c 5574 wl->irq = platform_get_irq(pdev, 0);
a390e85c
FB		 5575 wl->platform_quirks = pdata->platform_quirks;
5576 wl->set_power = pdata->set_power;
a390e85c
FB		 5577 wl->if_ops = pdata->ops;
5578
a390e85c
FB		 5579 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
5580 irqflags = IRQF_TRIGGER_RISING;
5581 else
5582 irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
5583
b5b45b3c 5584 ret = request_threaded_irq(wl->irq, wl12xx_hardirq, wlcore_irq,
a390e85c
FB		 5585 irqflags,
5586 pdev->name, wl);
5587 if (ret < 0) {
5588 wl1271_error("request_irq() failed: %d", ret);
6f8d6b20 5589 goto out_free_nvs;
a390e85c
FB		 5590 }
5591
dfb89c56 5592#ifdef CONFIG_PM
a390e85c
FB		 5593 ret = enable_irq_wake(wl->irq);
5594 if (!ret) {
5595 wl->irq_wake_enabled = true;
5596 device_init_wakeup(wl->dev, 1);
b95d7cef 5597 if (pdata->pwr_in_suspend) {
ffeb501c 5598 wl->hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
b95d7cef
ES		 5599 wl->hw->wiphy->wowlan.n_patterns =
5600 WL1271_MAX_RX_FILTERS;
5601 wl->hw->wiphy->wowlan.pattern_min_len = 1;
5602 wl->hw->wiphy->wowlan.pattern_max_len =
5603 WL1271_RX_FILTER_MAX_PATTERN_SIZE;
5604 }
a390e85c 5605 }
dfb89c56 5606#endif
a390e85c
FB		 5607 disable_irq(wl->irq);
5608
4afc37a0
LC		 5609 ret = wl12xx_get_hw_info(wl);
5610 if (ret < 0) {
5611 wl1271_error("couldn't get hw info");
8b425e62 5612 goto out_irq;
4afc37a0
LC		 5613 }
5614
5615 ret = wl->ops->identify_chip(wl);
5616 if (ret < 0)
8b425e62 5617 goto out_irq;
4afc37a0 5618
a390e85c
FB		 5619 ret = wl1271_init_ieee80211(wl);
5620 if (ret)
5621 goto out_irq;
5622
5623 ret = wl1271_register_hw(wl);
5624 if (ret)
5625 goto out_irq;
5626
f79f890c
FB		 5627 /* Create sysfs file to control bt coex state */
5628 ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
5629 if (ret < 0) {
5630 wl1271_error("failed to create sysfs file bt_coex_state");
8b425e62 5631 goto out_unreg;
f79f890c
FB		 5632 }
5633
5634 /* Create sysfs file to get HW PG version */
5635 ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
5636 if (ret < 0) {
5637 wl1271_error("failed to create sysfs file hw_pg_ver");
5638 goto out_bt_coex_state;
5639 }
5640
5641 /* Create sysfs file for the FW log */
5642 ret = device_create_bin_file(wl->dev, &fwlog_attr);
5643 if (ret < 0) {
5644 wl1271_error("failed to create sysfs file fwlog");
5645 goto out_hw_pg_ver;
5646 }
5647
6f8d6b20 5648 wl->initialized = true;
ffeb501c 5649 goto out;
a390e85c 5650
f79f890c
FB		 5651out_hw_pg_ver:
5652 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
5653
5654out_bt_coex_state:
5655 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
5656
8b425e62
LC		 5657out_unreg:
5658 wl1271_unregister_hw(wl);
5659
a390e85c
FB		 5660out_irq:
5661 free_irq(wl->irq, wl);
5662
6f8d6b20
IY		 5663out_free_nvs:
5664 kfree(wl->nvs);
5665
a390e85c 5666out:
6f8d6b20
IY		 5667 release_firmware(fw);
5668 complete_all(&wl->nvs_loading_complete);
5669}
5670
5671int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
5672{
5673 int ret;
5674
5675 if (!wl->ops || !wl->ptable)
5676 return -EINVAL;
5677
5678 wl->dev = &pdev->dev;
5679 wl->pdev = pdev;
5680 platform_set_drvdata(pdev, wl);
5681
5682 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
5683 WL12XX_NVS_NAME, &pdev->dev, GFP_KERNEL,
5684 wl, wlcore_nvs_cb);
5685 if (ret < 0) {
5686 wl1271_error("request_firmware_nowait failed: %d", ret);
5687 complete_all(&wl->nvs_loading_complete);
5688 }
5689
a390e85c 5690 return ret;
ce2a217c 5691}
b2ba99ff 5692EXPORT_SYMBOL_GPL(wlcore_probe);
ce2a217c 5693
b2ba99ff 5694int __devexit wlcore_remove(struct platform_device *pdev)
ce2a217c 5695{
a390e85c
FB		 5696 struct wl1271 *wl = platform_get_drvdata(pdev);
5697
6f8d6b20
IY		 5698 wait_for_completion(&wl->nvs_loading_complete);
5699 if (!wl->initialized)
5700 return 0;
5701
a390e85c
FB		 5702 if (wl->irq_wake_enabled) {
5703 device_init_wakeup(wl->dev, 0);
5704 disable_irq_wake(wl->irq);
5705 }
5706 wl1271_unregister_hw(wl);
5707 free_irq(wl->irq, wl);
ffeb501c 5708 wlcore_free_hw(wl);
a390e85c 5709
ce2a217c
FB		 5710 return 0;
5711}
b2ba99ff 5712EXPORT_SYMBOL_GPL(wlcore_remove);
ce2a217c 5713
491bbd6b 5714u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5715EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5716module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5717MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5718
95dac04f 5719module_param_named(fwlog, fwlog_param, charp, 0);
2c882fa4 5720MODULE_PARM_DESC(fwlog,
95dac04f
IY		 5721 "FW logger options: continuous, ondemand, dbgpins or disable");
5722
2a5bff09
EP		 5723module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5724MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5725
34785be5
AN		 5726module_param(no_recovery, bool, S_IRUSR | S_IWUSR);
5727MODULE_PARM_DESC(no_recovery, "Prevent HW recovery. FW will remain stuck.");
5728
50b3eb4b 5729MODULE_LICENSE("GPL");
b1a48cab 5730MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5731MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
0635ad45 5732MODULE_FIRMWARE(WL12XX_NVS_NAME);
Linux kernel - Deliverables
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