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wlcore: Remove redundant check on unsigned variable
[GitHub/mt8127/android_kernel_alcatel_ttab.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
87fbcb0f
EP		 2471static int wl1271_join(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2472 bool set_assoc)
82429d32
JO		 2473{
2474 int ret;
536129c8 2475 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2476
69e5434c
JO		 2477 /*
2478 * One of the side effects of the JOIN command is that is clears
2479 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2480 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2481 * Currently the only valid scenario for JOIN during association
2482 * is on roaming, in which case we will also be given new keys.
2483 * Keep the below message for now, unless it starts bothering
2484 * users who really like to roam a lot :)
69e5434c 2485 */
ba8447f6 2486 if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
69e5434c
JO		 2487 wl1271_info("JOIN while associated.");
2488
5ec8a448
EP		 2489 /* clear encryption type */
2490 wlvif->encryption_type = KEY_NONE;
2491
69e5434c 2492 if (set_assoc)
ba8447f6 2493 set_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags);
69e5434c 2494
227e81e1 2495 if (is_ibss)
87fbcb0f 2496 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
227e81e1 2497 else
87fbcb0f 2498 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
82429d32
JO		 2499 if (ret < 0)
2500 goto out;
2501
ba8447f6 2502 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
82429d32
JO		 2503 goto out;
2504
2505 /*
2506 * The join command disable the keep-alive mode, shut down its process,
2507 * and also clear the template config, so we need to reset it all after
2508 * the join. The acx_aid starts the keep-alive process, and the order
2509 * of the commands below is relevant.
2510 */
0603d891 2511 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
82429d32
JO		 2512 if (ret < 0)
2513 goto out;
2514
0603d891 2515 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
82429d32
JO		 2516 if (ret < 0)
2517 goto out;
2518
d2d66c56 2519 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32
JO		 2520 if (ret < 0)
2521 goto out;
2522
0603d891 2523 ret = wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2524 wlvif->sta.klv_template_id,
82429d32
JO		 2525 ACX_KEEP_ALIVE_TPL_VALID);
2526 if (ret < 0)
2527 goto out;
2528
2529out:
2530 return ret;
2531}
2532
0603d891 2533static int wl1271_unjoin(struct wl1271 *wl, struct wl12xx_vif *wlvif)
c7f43e45
LC		 2534{
2535 int ret;
2536
52630c5d 2537 if (test_and_clear_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags)) {
6e8cd331
EP		 2538 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
2539
6d158ff3 2540 wl12xx_cmd_stop_channel_switch(wl);
6e8cd331 2541 ieee80211_chswitch_done(vif, false);
6d158ff3
SL		 2542 }
2543
4137c17c
EP		 2544 /* invalidate keep-alive template */
2545 wl1271_acx_keep_alive_config(wl, wlvif,
001e39a8 2546 wlvif->sta.klv_template_id,
4137c17c
EP		 2547 ACX_KEEP_ALIVE_TPL_INVALID);
2548
c7f43e45 2549 /* to stop listening to a channel, we disconnect */
0603d891 2550 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
c7f43e45
LC		 2551 if (ret < 0)
2552 goto out;
2553
b992c682 2554 /* reset TX security counters on a clean disconnect */
48e93e40
EP		 2555 wlvif->tx_security_last_seq_lsb = 0;
2556 wlvif->tx_security_seq = 0;
b992c682 2557
c7f43e45
LC		 2558out:
2559 return ret;
2560}
2561
87fbcb0f 2562static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2563{
1b92f15e 2564 wlvif->basic_rate_set = wlvif->bitrate_masks[wlvif->band];
30d0c8fd 2565 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2566}
2567
87fbcb0f
EP		 2568static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2569 bool idle)
0d58cbff
JO		 2570{
2571 int ret;
a0c7b782
EP		 2572 bool cur_idle = !test_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
2573
2574 if (idle == cur_idle)
2575 return 0;
0d58cbff
JO		 2576
2577 if (idle) {
251c177f 2578 /* no need to croc if we weren't busy (e.g. during boot) */
92e712da 2579 if (wl12xx_dev_role_started(wlvif)) {
679a6734 2580 ret = wl12xx_stop_dev(wl, wlvif);
0d58cbff
JO		 2581 if (ret < 0)
2582 goto out;
2583 }
30d0c8fd
EP		 2584 wlvif->rate_set =
2585 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2586 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
0d58cbff
JO		 2587 if (ret < 0)
2588 goto out;
a0c7b782 2589 clear_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
0d58cbff 2590 } else {
33c2c06c
LC		 2591 /* The current firmware only supports sched_scan in idle */
2592 if (wl->sched_scanning) {
78f85f50 2593 wl1271_scan_sched_scan_stop(wl, wlvif);
33c2c06c
LC		 2594 ieee80211_sched_scan_stopped(wl->hw);
2595 }
2596
679a6734 2597 ret = wl12xx_start_dev(wl, wlvif);
0d58cbff
JO		 2598 if (ret < 0)
2599 goto out;
a0c7b782 2600 set_bit(WLVIF_FLAG_IN_USE, &wlvif->flags);
0d58cbff
JO		 2601 }
2602
2603out:
2604 return ret;
2605}
2606
9f259c4e
EP		 2607static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2608 struct ieee80211_conf *conf, u32 changed)
f5fc0f86 2609{
9f259c4e
EP		 2610 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
2611 int channel, ret;
f5fc0f86
LC		 2612
2613 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2614
ebba60c6 2615 /* if the channel changes while joined, join again */
69e5434c 2616 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
1b92f15e 2617 ((wlvif->band != conf->channel->band) ||
83d08d3f
AN		 2618 (wlvif->channel != channel) ||
2619 (wlvif->channel_type != conf->channel_type))) {
c6930b07 2620 /* send all pending packets */
eb96f841
IY		 2621 ret = wlcore_tx_work_locked(wl);
2622 if (ret < 0)
2623 return ret;
2624
61f845f4
EP		 2625 wlvif->band = conf->channel->band;
2626 wlvif->channel = channel;
83d08d3f 2627 wlvif->channel_type = conf->channel_type;
ebba60c6 2628
ebc7e57d 2629 if (is_ap) {
2812eef1 2630 wl1271_set_band_rate(wl, wlvif);
ebc7e57d
AN		 2631 ret = wl1271_init_ap_rates(wl, wlvif);
2632 if (ret < 0)
2633 wl1271_error("AP rate policy change failed %d",
2634 ret);
2635 } else {
bee0ffec
AN		 2636 /*
2637 * FIXME: the mac80211 should really provide a fixed
2638 * rate to use here. for now, just use the smallest
2639 * possible rate for the band as a fixed rate for
2640 * association frames and other control messages.
2641 */
ba8447f6 2642 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
87fbcb0f 2643 wl1271_set_band_rate(wl, wlvif);
bee0ffec 2644
d2d66c56 2645 wlvif->basic_rate =
87fbcb0f
EP		 2646 wl1271_tx_min_rate_get(wl,
2647 wlvif->basic_rate_set);
30d0c8fd 2648 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 2649 if (ret < 0)
bee0ffec 2650 wl1271_warning("rate policy for channel "
ebba60c6 2651 "failed %d", ret);
bee0ffec 2652
121af049
EP		 2653 /*
2654 * change the ROC channel. do it only if we are
2655 * not idle. otherwise, CROC will be called
2656 * anyway.
2657 */
2658 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED,
2659 &wlvif->flags) &&
2660 wl12xx_dev_role_started(wlvif) &&
2661 !(conf->flags & IEEE80211_CONF_IDLE)) {
2662 ret = wl12xx_stop_dev(wl, wlvif);
bee0ffec 2663 if (ret < 0)
121af049
EP		 2664 return ret;
2665
2666 ret = wl12xx_start_dev(wl, wlvif);
2667 if (ret < 0)
2668 return ret;
bee0ffec 2669 }
ebba60c6
JO		 2670 }
2671 }
2672
d18da7fc
ES		 2673 if ((changed & IEEE80211_CONF_CHANGE_PS) && !is_ap) {
2674
2675 if ((conf->flags & IEEE80211_CONF_PS) &&
2676 test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags) &&
5c0dc2fc 2677 !test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc 2678
5c0dc2fc
ES		 2679 int ps_mode;
2680 char *ps_mode_str;
2681
2682 if (wl->conf.conn.forced_ps) {
2683 ps_mode = STATION_POWER_SAVE_MODE;
2684 ps_mode_str = "forced";
2685 } else {
2686 ps_mode = STATION_AUTO_PS_MODE;
2687 ps_mode_str = "auto";
2688 }
2689
2690 wl1271_debug(DEBUG_PSM, "%s ps enabled", ps_mode_str);
2691
2692 ret = wl1271_ps_set_mode(wl, wlvif, ps_mode);
f5fc0f86 2693
d18da7fc 2694 if (ret < 0)
5c0dc2fc
ES		 2695 wl1271_warning("enter %s ps failed %d",
2696 ps_mode_str, ret);
f5fc0f86 2697
d18da7fc 2698 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
5c0dc2fc 2699 test_bit(WLVIF_FLAG_IN_PS, &wlvif->flags)) {
d18da7fc
ES		 2700
2701 wl1271_debug(DEBUG_PSM, "auto ps disabled");
f5fc0f86 2702
0603d891 2703 ret = wl1271_ps_set_mode(wl, wlvif,
248a0018 2704 STATION_ACTIVE_MODE);
d18da7fc
ES		 2705 if (ret < 0)
2706 wl1271_warning("exit auto ps failed %d", ret);
2707 }
f5fc0f86
LC		 2708 }
2709
6bd65029 2710 if (conf->power_level != wlvif->power_level) {
0603d891 2711 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
f5fc0f86 2712 if (ret < 0)
9f259c4e 2713 return ret;
f5fc0f86 2714
6bd65029 2715 wlvif->power_level = conf->power_level;
f5fc0f86
LC		 2716 }
2717
9f259c4e
EP		 2718 return 0;
2719}
2720
2721static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2722{
2723 struct wl1271 *wl = hw->priv;
2724 struct wl12xx_vif *wlvif;
2725 struct ieee80211_conf *conf = &hw->conf;
2726 int channel, ret = 0;
2727
2728 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2729
2730 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2731 " changed 0x%x",
2732 channel,
2733 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
2734 conf->power_level,
2735 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2736 changed);
2737
2738 /*
2739 * mac80211 will go to idle nearly immediately after transmitting some
2740 * frames, such as the deauth. To make sure those frames reach the air,
2741 * wait here until the TX queue is fully flushed.
2742 */
d1bcb53f
EP		 2743 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) ||
2744 ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2745 (conf->flags & IEEE80211_CONF_IDLE)))
9f259c4e
EP		 2746 wl1271_tx_flush(wl);
2747
2748 mutex_lock(&wl->mutex);
2749
2750 /* we support configuring the channel and band even while off */
2751 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
2752 wl->band = conf->channel->band;
2753 wl->channel = channel;
83d08d3f 2754 wl->channel_type = conf->channel_type;
9f259c4e
EP		 2755 }
2756
2757 if (changed & IEEE80211_CONF_CHANGE_POWER)
2758 wl->power_level = conf->power_level;
2759
4cc53383 2760 if (unlikely(wl->state != WLCORE_STATE_ON))
9f259c4e
EP		 2761 goto out;
2762
2763 ret = wl1271_ps_elp_wakeup(wl);
2764 if (ret < 0)
2765 goto out;
2766
2767 /* configure each interface */
2768 wl12xx_for_each_wlvif(wl, wlvif) {
2769 ret = wl12xx_config_vif(wl, wlvif, conf, changed);
2770 if (ret < 0)
2771 goto out_sleep;
2772 }
2773
f5fc0f86
LC		 2774out_sleep:
2775 wl1271_ps_elp_sleep(wl);
2776
2777out:
2778 mutex_unlock(&wl->mutex);
2779
2780 return ret;
2781}
2782
b54853f1
JO		 2783struct wl1271_filter_params {
2784 bool enabled;
2785 int mc_list_length;
2786 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2787};
2788
22bedad3
JP		 2789static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2790 struct netdev_hw_addr_list *mc_list)
c87dec9f 2791{
c87dec9f 2792 struct wl1271_filter_params *fp;
22bedad3 2793 struct netdev_hw_addr *ha;
c87dec9f 2794
74441130 2795 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2796 if (!fp) {
2797 wl1271_error("Out of memory setting filters.");
2798 return 0;
2799 }
2800
2801 /* update multicast filtering parameters */
c87dec9f 2802 fp->mc_list_length = 0;
22bedad3
JP		 2803 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2804 fp->enabled = false;
2805 } else {
2806 fp->enabled = true;
2807 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2808 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2809 ha->addr, ETH_ALEN);
c87dec9f 2810 fp->mc_list_length++;
22bedad3 2811 }
c87dec9f
JO		 2812 }
2813
b54853f1 2814 return (u64)(unsigned long)fp;
c87dec9f 2815}
f5fc0f86 2816
b54853f1
JO		 2817#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2818 FIF_ALLMULTI | \
2819 FIF_FCSFAIL | \
2820 FIF_BCN_PRBRESP_PROMISC | \
2821 FIF_CONTROL | \
2822 FIF_OTHER_BSS)
2823
f5fc0f86
LC		 2824static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2825 unsigned int changed,
c87dec9f 2826 unsigned int *total, u64 multicast)
f5fc0f86 2827{
b54853f1 2828 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2829 struct wl1271 *wl = hw->priv;
6e8cd331 2830 struct wl12xx_vif *wlvif;
536129c8 2831
b54853f1 2832 int ret;
f5fc0f86 2833
7d057869
AN		 2834 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2835 " total %x", changed, *total);
f5fc0f86 2836
b54853f1
JO		 2837 mutex_lock(&wl->mutex);
2838
2c10bb9c
SD		 2839 *total &= WL1271_SUPPORTED_FILTERS;
2840 changed &= WL1271_SUPPORTED_FILTERS;
2841
4cc53383 2842 if (unlikely(wl->state != WLCORE_STATE_ON))
b54853f1
JO		 2843 goto out;
2844
a620865e 2845 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2846 if (ret < 0)
2847 goto out;
2848
6e8cd331
EP		 2849 wl12xx_for_each_wlvif(wl, wlvif) {
2850 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
2851 if (*total & FIF_ALLMULTI)
2852 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2853 false,
2854 NULL, 0);
2855 else if (fp)
2856 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2857 fp->enabled,
2858 fp->mc_list,
2859 fp->mc_list_length);
2860 if (ret < 0)
2861 goto out_sleep;
2862 }
7d057869 2863 }
f5fc0f86 2864
08c1d1c7
EP		 2865 /*
2866 * the fw doesn't provide an api to configure the filters. instead,
2867 * the filters configuration is based on the active roles / ROC
2868 * state.
2869 */
b54853f1
JO		 2870
2871out_sleep:
2872 wl1271_ps_elp_sleep(wl);
2873
2874out:
2875 mutex_unlock(&wl->mutex);
14b228a0 2876 kfree(fp);
f5fc0f86
LC		 2877}
2878
170d0e67
EP		 2879static int wl1271_record_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2880 u8 id, u8 key_type, u8 key_size,
2881 const u8 *key, u8 hlid, u32 tx_seq_32,
2882 u16 tx_seq_16)
7f179b46
AN		 2883{
2884 struct wl1271_ap_key *ap_key;
2885 int i;
2886
2887 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2888
2889 if (key_size > MAX_KEY_SIZE)
2890 return -EINVAL;
2891
2892 /*
2893 * Find next free entry in ap_keys. Also check we are not replacing
2894 * an existing key.
2895 */
2896 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67 2897 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2898 break;
2899
170d0e67 2900 if (wlvif->ap.recorded_keys[i]->id == id) {
7f179b46
AN		 2901 wl1271_warning("trying to record key replacement");
2902 return -EINVAL;
2903 }
2904 }
2905
2906 if (i == MAX_NUM_KEYS)
2907 return -EBUSY;
2908
2909 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2910 if (!ap_key)
2911 return -ENOMEM;
2912
2913 ap_key->id = id;
2914 ap_key->key_type = key_type;
2915 ap_key->key_size = key_size;
2916 memcpy(ap_key->key, key, key_size);
2917 ap_key->hlid = hlid;
2918 ap_key->tx_seq_32 = tx_seq_32;
2919 ap_key->tx_seq_16 = tx_seq_16;
2920
170d0e67 2921 wlvif->ap.recorded_keys[i] = ap_key;
7f179b46
AN		 2922 return 0;
2923}
2924
170d0e67 2925static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 2926{
2927 int i;
2928
2929 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67
EP		 2930 kfree(wlvif->ap.recorded_keys[i]);
2931 wlvif->ap.recorded_keys[i] = NULL;
7f179b46
AN		 2932 }
2933}
2934
a8ab39a4 2935static int wl1271_ap_init_hwenc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 2936{
2937 int i, ret = 0;
2938 struct wl1271_ap_key *key;
2939 bool wep_key_added = false;
2940
2941 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 2942 u8 hlid;
170d0e67 2943 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2944 break;
2945
170d0e67 2946 key = wlvif->ap.recorded_keys[i];
7f97b487
EP		 2947 hlid = key->hlid;
2948 if (hlid == WL12XX_INVALID_LINK_ID)
a8ab39a4 2949 hlid = wlvif->ap.bcast_hlid;
7f97b487 2950
a8ab39a4 2951 ret = wl1271_cmd_set_ap_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 2952 key->id, key->key_type,
2953 key->key_size, key->key,
7f97b487 2954 hlid, key->tx_seq_32,
7f179b46
AN		 2955 key->tx_seq_16);
2956 if (ret < 0)
2957 goto out;
2958
2959 if (key->key_type == KEY_WEP)
2960 wep_key_added = true;
2961 }
2962
2963 if (wep_key_added) {
f75c753f 2964 ret = wl12xx_cmd_set_default_wep_key(wl, wlvif->default_key,
a8ab39a4 2965 wlvif->ap.bcast_hlid);
7f179b46
AN		 2966 if (ret < 0)
2967 goto out;
2968 }
2969
2970out:
170d0e67 2971 wl1271_free_ap_keys(wl, wlvif);
7f179b46
AN		 2972 return ret;
2973}
2974
536129c8
EP		 2975static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2976 u16 action, u8 id, u8 key_type,
7f179b46
AN		 2977 u8 key_size, const u8 *key, u32 tx_seq_32,
2978 u16 tx_seq_16, struct ieee80211_sta *sta)
2979{
2980 int ret;
536129c8 2981 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 2982
2983 if (is_ap) {
2984 struct wl1271_station *wl_sta;
2985 u8 hlid;
2986
2987 if (sta) {
2988 wl_sta = (struct wl1271_station *)sta->drv_priv;
2989 hlid = wl_sta->hlid;
2990 } else {
a8ab39a4 2991 hlid = wlvif->ap.bcast_hlid;
7f179b46
AN		 2992 }
2993
53d40d0b 2994 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
7f179b46
AN		 2995 /*
2996 * We do not support removing keys after AP shutdown.
2997 * Pretend we do to make mac80211 happy.
2998 */
2999 if (action != KEY_ADD_OR_REPLACE)
3000 return 0;
3001
170d0e67 3002 ret = wl1271_record_ap_key(wl, wlvif, id,
7f179b46
AN		 3003 key_type, key_size,
3004 key, hlid, tx_seq_32,
3005 tx_seq_16);
3006 } else {
a8ab39a4 3007 ret = wl1271_cmd_set_ap_key(wl, wlvif, action,
7f179b46
AN		 3008 id, key_type, key_size,
3009 key, hlid, tx_seq_32,
3010 tx_seq_16);
3011 }
3012
3013 if (ret < 0)
3014 return ret;
3015 } else {
3016 const u8 *addr;
3017 static const u8 bcast_addr[ETH_ALEN] = {
3018 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
3019 };
3020
3021 addr = sta ? sta->addr : bcast_addr;
3022
3023 if (is_zero_ether_addr(addr)) {
3024 /* We dont support TX only encryption */
3025 return -EOPNOTSUPP;
3026 }
3027
3028 /* The wl1271 does not allow to remove unicast keys - they
3029 will be cleared automatically on next CMD_JOIN. Ignore the
3030 request silently, as we dont want the mac80211 to emit
3031 an error message. */
3032 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
3033 return 0;
3034
010d3d30
EP		 3035 /* don't remove key if hlid was already deleted */
3036 if (action == KEY_REMOVE &&
154da67c 3037 wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
010d3d30
EP		 3038 return 0;
3039
a8ab39a4 3040 ret = wl1271_cmd_set_sta_key(wl, wlvif, action,
7f179b46
AN		 3041 id, key_type, key_size,
3042 key, addr, tx_seq_32,
3043 tx_seq_16);
3044 if (ret < 0)
3045 return ret;
3046
3047 /* the default WEP key needs to be configured at least once */
3048 if (key_type == KEY_WEP) {
c690ec81 3049 ret = wl12xx_cmd_set_default_wep_key(wl,
f75c753f
EP		 3050 wlvif->default_key,
3051 wlvif->sta.hlid);
7f179b46
AN		 3052 if (ret < 0)
3053 return ret;
3054 }
3055 }
3056
3057 return 0;
3058}
3059
a1c597f2 3060static int wlcore_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
f5fc0f86
LC		 3061 struct ieee80211_vif *vif,
3062 struct ieee80211_sta *sta,
3063 struct ieee80211_key_conf *key_conf)
3064{
3065 struct wl1271 *wl = hw->priv;
af390f4d
EP		 3066 int ret;
3067 bool might_change_spare =
3068 key_conf->cipher == WL1271_CIPHER_SUITE_GEM ||
3069 key_conf->cipher == WLAN_CIPHER_SUITE_TKIP;
3070
3071 if (might_change_spare) {
3072 /*
3073 * stop the queues and flush to ensure the next packets are
3074 * in sync with FW spare block accounting
3075 */
3076 mutex_lock(&wl->mutex);
3077 wlcore_stop_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3078 mutex_unlock(&wl->mutex);
3079
3080 wl1271_tx_flush(wl);
3081 }
3082
3083 mutex_lock(&wl->mutex);
3084
3085 if (unlikely(wl->state != WLCORE_STATE_ON)) {
3086 ret = -EAGAIN;
3087 goto out_wake_queues;
3088 }
a1c597f2 3089
af390f4d
EP		 3090 ret = wl1271_ps_elp_wakeup(wl);
3091 if (ret < 0)
3092 goto out_wake_queues;
3093
3094 ret = wlcore_hw_set_key(wl, cmd, vif, sta, key_conf);
3095
3096 wl1271_ps_elp_sleep(wl);
3097
3098out_wake_queues:
3099 if (might_change_spare)
3100 wlcore_wake_queues(wl, WLCORE_QUEUE_STOP_REASON_SPARE_BLK);
3101
3102 mutex_unlock(&wl->mutex);
3103
3104 return ret;
a1c597f2
AN		 3105}
3106
3107int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
3108 struct ieee80211_vif *vif,
3109 struct ieee80211_sta *sta,
3110 struct ieee80211_key_conf *key_conf)
3111{
536129c8 3112 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 3113 int ret;
ac4e4ce5
JO		 3114 u32 tx_seq_32 = 0;
3115 u16 tx_seq_16 = 0;
f5fc0f86
LC		 3116 u8 key_type;
3117
f5fc0f86
LC		 3118 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
3119
7f179b46 3120 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 3121 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 3122 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 3123 key_conf->keylen, key_conf->flags);
3124 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
3125
97359d12
JB		 3126 switch (key_conf->cipher) {
3127 case WLAN_CIPHER_SUITE_WEP40:
3128 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 3129 key_type = KEY_WEP;
3130
3131 key_conf->hw_key_idx = key_conf->keyidx;
3132 break;
97359d12 3133 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 3134 key_type = KEY_TKIP;
3135
3136 key_conf->hw_key_idx = key_conf->keyidx;
48e93e40
EP		 3137 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3138 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3139 break;
97359d12 3140 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 3141 key_type = KEY_AES;
3142
12d4b975 3143 key_conf->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
48e93e40
EP		 3144 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3145 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
f5fc0f86 3146 break;
7a55724e
JO		 3147 case WL1271_CIPHER_SUITE_GEM:
3148 key_type = KEY_GEM;
48e93e40
EP		 3149 tx_seq_32 = WL1271_TX_SECURITY_HI32(wlvif->tx_security_seq);
3150 tx_seq_16 = WL1271_TX_SECURITY_LO16(wlvif->tx_security_seq);
7a55724e 3151 break;
f5fc0f86 3152 default:
97359d12 3153 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86 3154
af390f4d 3155 return -EOPNOTSUPP;
f5fc0f86
LC		 3156 }
3157
3158 switch (cmd) {
3159 case SET_KEY:
536129c8 3160 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 3161 key_conf->keyidx, key_type,
3162 key_conf->keylen, key_conf->key,
3163 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 3164 if (ret < 0) {
3165 wl1271_error("Could not add or replace key");
af390f4d 3166 return ret;
f5fc0f86 3167 }
5ec8a448
EP		 3168
3169 /*
3170 * reconfiguring arp response if the unicast (or common)
3171 * encryption key type was changed
3172 */
3173 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
3174 (sta || key_type == KEY_WEP) &&
3175 wlvif->encryption_type != key_type) {
3176 wlvif->encryption_type = key_type;
3177 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
3178 if (ret < 0) {
3179 wl1271_warning("build arp rsp failed: %d", ret);
af390f4d 3180 return ret;
5ec8a448
EP		 3181 }
3182 }
f5fc0f86
LC		 3183 break;
3184
3185 case DISABLE_KEY:
536129c8 3186 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 3187 key_conf->keyidx, key_type,
3188 key_conf->keylen, key_conf->key,
3189 0, 0, sta);
f5fc0f86
LC		 3190 if (ret < 0) {
3191 wl1271_error("Could not remove key");
af390f4d 3192 return ret;
f5fc0f86
LC		 3193 }
3194 break;
3195
3196 default:
3197 wl1271_error("Unsupported key cmd 0x%x", cmd);
af390f4d 3198 return -EOPNOTSUPP;
f5fc0f86
LC		 3199 }
3200
f5fc0f86
LC		 3201 return ret;
3202}
a1c597f2 3203EXPORT_SYMBOL_GPL(wlcore_set_key);
f5fc0f86
LC		 3204
3205static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 3206 struct ieee80211_vif *vif,
f5fc0f86
LC		 3207 struct cfg80211_scan_request *req)
3208{
3209 struct wl1271 *wl = hw->priv;
3210 int ret;
3211 u8 *ssid = NULL;
abb0b3bf 3212 size_t len = 0;
f5fc0f86
LC		 3213
3214 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
3215
3216 if (req->n_ssids) {
3217 ssid = req->ssids[0].ssid;
abb0b3bf 3218 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 3219 }
3220
3221 mutex_lock(&wl->mutex);
3222
4cc53383 3223 if (unlikely(wl->state != WLCORE_STATE_ON)) {
b739a42c
JO		 3224 /*
3225 * We cannot return -EBUSY here because cfg80211 will expect
3226 * a call to ieee80211_scan_completed if we do - in this case
3227 * there won't be any call.
3228 */
3229 ret = -EAGAIN;
3230 goto out;
3231 }
3232
a620865e 3233 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3234 if (ret < 0)
3235 goto out;
3236
97fd311a
EP		 3237 /* fail if there is any role in ROC */
3238 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) < WL12XX_MAX_ROLES) {
92e712da
EP		 3239 /* don't allow scanning right now */
3240 ret = -EBUSY;
3241 goto out_sleep;
3242 }
3243
784f694d 3244 ret = wl1271_scan(hw->priv, vif, ssid, len, req);
251c177f 3245out_sleep:
f5fc0f86 3246 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 3247out:
3248 mutex_unlock(&wl->mutex);
3249
3250 return ret;
3251}
3252
73ecce31
EP		 3253static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
3254 struct ieee80211_vif *vif)
3255{
3256 struct wl1271 *wl = hw->priv;
3257 int ret;
3258
3259 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
3260
3261 mutex_lock(&wl->mutex);
3262
4cc53383 3263 if (unlikely(wl->state != WLCORE_STATE_ON))
73ecce31
EP		 3264 goto out;
3265
3266 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
3267 goto out;
3268
3269 ret = wl1271_ps_elp_wakeup(wl);
3270 if (ret < 0)
3271 goto out;
3272
3273 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
3274 ret = wl1271_scan_stop(wl);
3275 if (ret < 0)
3276 goto out_sleep;
3277 }
55df5afb
AN		 3278
3279 /*
3280 * Rearm the tx watchdog just before idling scan. This
3281 * prevents just-finished scans from triggering the watchdog
3282 */
3283 wl12xx_rearm_tx_watchdog_locked(wl);
3284
73ecce31
EP		 3285 wl->scan.state = WL1271_SCAN_STATE_IDLE;
3286 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 3287 wl->scan_vif = NULL;
73ecce31
EP		 3288 wl->scan.req = NULL;
3289 ieee80211_scan_completed(wl->hw, true);
3290
3291out_sleep:
3292 wl1271_ps_elp_sleep(wl);
3293out:
3294 mutex_unlock(&wl->mutex);
3295
3296 cancel_delayed_work_sync(&wl->scan_complete_work);
3297}
3298
33c2c06c
LC		 3299static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
3300 struct ieee80211_vif *vif,
3301 struct cfg80211_sched_scan_request *req,
3302 struct ieee80211_sched_scan_ies *ies)
3303{
3304 struct wl1271 *wl = hw->priv;
536129c8 3305 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3306 int ret;
3307
3308 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
3309
3310 mutex_lock(&wl->mutex);
3311
4cc53383 3312 if (unlikely(wl->state != WLCORE_STATE_ON)) {
9e0dc890
PF		 3313 ret = -EAGAIN;
3314 goto out;
3315 }
3316
33c2c06c
LC		 3317 ret = wl1271_ps_elp_wakeup(wl);
3318 if (ret < 0)
3319 goto out;
3320
536129c8 3321 ret = wl1271_scan_sched_scan_config(wl, wlvif, req, ies);
33c2c06c
LC		 3322 if (ret < 0)
3323 goto out_sleep;
3324
536129c8 3325 ret = wl1271_scan_sched_scan_start(wl, wlvif);
33c2c06c
LC		 3326 if (ret < 0)
3327 goto out_sleep;
3328
3329 wl->sched_scanning = true;
3330
3331out_sleep:
3332 wl1271_ps_elp_sleep(wl);
3333out:
3334 mutex_unlock(&wl->mutex);
3335 return ret;
3336}
3337
3338static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3339 struct ieee80211_vif *vif)
3340{
3341 struct wl1271 *wl = hw->priv;
78f85f50 3342 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3343 int ret;
3344
3345 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3346
3347 mutex_lock(&wl->mutex);
3348
4cc53383 3349 if (unlikely(wl->state != WLCORE_STATE_ON))
9e0dc890
PF		 3350 goto out;
3351
33c2c06c
LC		 3352 ret = wl1271_ps_elp_wakeup(wl);
3353 if (ret < 0)
3354 goto out;
3355
78f85f50 3356 wl1271_scan_sched_scan_stop(wl, wlvif);
33c2c06c
LC		 3357
3358 wl1271_ps_elp_sleep(wl);
3359out:
3360 mutex_unlock(&wl->mutex);
3361}
3362
68d069c4
AN		 3363static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3364{
3365 struct wl1271 *wl = hw->priv;
3366 int ret = 0;
3367
3368 mutex_lock(&wl->mutex);
3369
4cc53383 3370 if (unlikely(wl->state != WLCORE_STATE_ON)) {
68d069c4
AN		 3371 ret = -EAGAIN;
3372 goto out;
3373 }
3374
a620865e 3375 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3376 if (ret < 0)
3377 goto out;
3378
5f704d18 3379 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3380 if (ret < 0)
3381 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3382
3383 wl1271_ps_elp_sleep(wl);
3384
3385out:
3386 mutex_unlock(&wl->mutex);
3387
3388 return ret;
3389}
3390
f5fc0f86
LC		 3391static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3392{
3393 struct wl1271 *wl = hw->priv;
6e8cd331 3394 struct wl12xx_vif *wlvif;
aecb0565 3395 int ret = 0;
f5fc0f86
LC		 3396
3397 mutex_lock(&wl->mutex);
3398
4cc53383 3399 if (unlikely(wl->state != WLCORE_STATE_ON)) {
f8d9802f 3400 ret = -EAGAIN;
aecb0565 3401 goto out;
f8d9802f 3402 }
aecb0565 3403
a620865e 3404 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3405 if (ret < 0)
3406 goto out;
3407
6e8cd331
EP		 3408 wl12xx_for_each_wlvif(wl, wlvif) {
3409 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
3410 if (ret < 0)
3411 wl1271_warning("set rts threshold failed: %d", ret);
3412 }
f5fc0f86
LC		 3413 wl1271_ps_elp_sleep(wl);
3414
3415out:
3416 mutex_unlock(&wl->mutex);
3417
3418 return ret;
3419}
3420
1fe9f161 3421static int wl1271_ssid_set(struct ieee80211_vif *vif, struct sk_buff *skb,
2f6724b2 3422 int offset)
30240fc7 3423{
1fe9f161 3424 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
889cb360
EP		 3425 u8 ssid_len;
3426 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
3427 skb->len - offset);
30240fc7 3428
889cb360
EP		 3429 if (!ptr) {
3430 wl1271_error("No SSID in IEs!");
3431 return -ENOENT;
3432 }
3433
3434 ssid_len = ptr[1];
3435 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
3436 wl1271_error("SSID is too long!");
3437 return -EINVAL;
30240fc7 3438 }
e78a287a 3439
1fe9f161
EP		 3440 wlvif->ssid_len = ssid_len;
3441 memcpy(wlvif->ssid, ptr+2, ssid_len);
889cb360 3442 return 0;
30240fc7
JO		 3443}
3444
d48055d9
EP		 3445static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3446{
3447 int len;
3448 const u8 *next, *end = skb->data + skb->len;
3449 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3450 skb->len - ieoffset);
3451 if (!ie)
3452 return;
3453 len = ie[1] + 2;
3454 next = ie + len;
3455 memmove(ie, next, end - next);
3456 skb_trim(skb, skb->len - len);
3457}
3458
26b4bf2e
EP		 3459static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3460 unsigned int oui, u8 oui_type,
3461 int ieoffset)
3462{
3463 int len;
3464 const u8 *next, *end = skb->data + skb->len;
3465 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3466 skb->data + ieoffset,
3467 skb->len - ieoffset);
3468 if (!ie)
3469 return;
3470 len = ie[1] + 2;
3471 next = ie + len;
3472 memmove(ie, next, end - next);
3473 skb_trim(skb, skb->len - len);
3474}
3475
341f2c11
AN		 3476static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl, u32 rates,
3477 struct ieee80211_vif *vif)
560f0024 3478{
cdaac628 3479 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
560f0024
AN		 3480 struct sk_buff *skb;
3481 int ret;
3482
341f2c11 3483 skb = ieee80211_proberesp_get(wl->hw, vif);
560f0024 3484 if (!skb)
341f2c11 3485 return -EOPNOTSUPP;
560f0024 3486
cdaac628 3487 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
560f0024
AN		 3488 CMD_TEMPL_AP_PROBE_RESPONSE,
3489 skb->data,
3490 skb->len, 0,
3491 rates);
560f0024 3492 dev_kfree_skb(skb);
62c2e579
LC		 3493
3494 if (ret < 0)
3495 goto out;
3496
3497 wl1271_debug(DEBUG_AP, "probe response updated");
3498 set_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags);
3499
3500out:
560f0024
AN		 3501 return ret;
3502}
3503
3504static int wl1271_ap_set_probe_resp_tmpl_legacy(struct wl1271 *wl,
3505 struct ieee80211_vif *vif,
3506 u8 *probe_rsp_data,
3507 size_t probe_rsp_len,
3508 u32 rates)
68eaaf6e 3509{
1fe9f161
EP		 3510 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3511 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
68eaaf6e
AN		 3512 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3513 int ssid_ie_offset, ie_offset, templ_len;
3514 const u8 *ptr;
3515
3516 /* no need to change probe response if the SSID is set correctly */
1fe9f161 3517 if (wlvif->ssid_len > 0)
cdaac628 3518 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3519 CMD_TEMPL_AP_PROBE_RESPONSE,
3520 probe_rsp_data,
3521 probe_rsp_len, 0,
3522 rates);
3523
3524 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3525 wl1271_error("probe_rsp template too big");
3526 return -EINVAL;
3527 }
3528
3529 /* start searching from IE offset */
3530 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3531
3532 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3533 probe_rsp_len - ie_offset);
3534 if (!ptr) {
3535 wl1271_error("No SSID in beacon!");
3536 return -EINVAL;
3537 }
3538
3539 ssid_ie_offset = ptr - probe_rsp_data;
3540 ptr += (ptr[1] + 2);
3541
3542 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3543
3544 /* insert SSID from bss_conf */
3545 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3546 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3547 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3548 bss_conf->ssid, bss_conf->ssid_len);
3549 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3550
3551 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3552 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3553 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3554
cdaac628 3555 return wl1271_cmd_template_set(wl, wlvif->role_id,
68eaaf6e
AN		 3556 CMD_TEMPL_AP_PROBE_RESPONSE,
3557 probe_rsp_templ,
3558 templ_len, 0,
3559 rates);
3560}
3561
e78a287a 3562static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
0603d891 3563 struct ieee80211_vif *vif,
f5fc0f86
LC		 3564 struct ieee80211_bss_conf *bss_conf,
3565 u32 changed)
3566{
0603d891 3567 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3568 int ret = 0;
f5fc0f86 3569
e78a287a
AN		 3570 if (changed & BSS_CHANGED_ERP_SLOT) {
3571 if (bss_conf->use_short_slot)
0603d891 3572 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
e78a287a 3573 else
0603d891 3574 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
e78a287a
AN		 3575 if (ret < 0) {
3576 wl1271_warning("Set slot time failed %d", ret);
3577 goto out;
3578 }
3579 }
f5fc0f86 3580
e78a287a
AN		 3581 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3582 if (bss_conf->use_short_preamble)
0603d891 3583 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
e78a287a 3584 else
0603d891 3585 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
e78a287a 3586 }
f5fc0f86 3587
e78a287a
AN		 3588 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3589 if (bss_conf->use_cts_prot)
0603d891
EP		 3590 ret = wl1271_acx_cts_protect(wl, wlvif,
3591 CTSPROTECT_ENABLE);
e78a287a 3592 else
0603d891
EP		 3593 ret = wl1271_acx_cts_protect(wl, wlvif,
3594 CTSPROTECT_DISABLE);
e78a287a
AN		 3595 if (ret < 0) {
3596 wl1271_warning("Set ctsprotect failed %d", ret);
3597 goto out;
3598 }
3599 }
f8d9802f 3600
e78a287a
AN		 3601out:
3602 return ret;
3603}
f5fc0f86 3604
62c2e579
LC		 3605static int wlcore_set_beacon_template(struct wl1271 *wl,
3606 struct ieee80211_vif *vif,
3607 bool is_ap)
3608{
3609 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3610 struct ieee80211_hdr *hdr;
3611 u32 min_rate;
3612 int ret;
3613 int ieoffset = offsetof(struct ieee80211_mgmt,
3614 u.beacon.variable);
3615 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3616 u16 tmpl_id;
3617
3618 if (!beacon) {
3619 ret = -EINVAL;
3620 goto out;
3621 }
3622
3623 wl1271_debug(DEBUG_MASTER, "beacon updated");
3624
3625 ret = wl1271_ssid_set(vif, beacon, ieoffset);
3626 if (ret < 0) {
3627 dev_kfree_skb(beacon);
3628 goto out;
3629 }
3630 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
3631 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3632 CMD_TEMPL_BEACON;
3633 ret = wl1271_cmd_template_set(wl, wlvif->role_id, tmpl_id,
3634 beacon->data,
3635 beacon->len, 0,
3636 min_rate);
3637 if (ret < 0) {
3638 dev_kfree_skb(beacon);
3639 goto out;
3640 }
3641
3642 /*
3643 * In case we already have a probe-resp beacon set explicitly
3644 * by usermode, don't use the beacon data.
3645 */
3646 if (test_bit(WLVIF_FLAG_AP_PROBE_RESP_SET, &wlvif->flags))
3647 goto end_bcn;
3648
3649 /* remove TIM ie from probe response */
3650 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3651
3652 /*
3653 * remove p2p ie from probe response.
3654 * the fw reponds to probe requests that don't include
3655 * the p2p ie. probe requests with p2p ie will be passed,
3656 * and will be responded by the supplicant (the spec
3657 * forbids including the p2p ie when responding to probe
3658 * requests that didn't include it).
3659 */
3660 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3661 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3662
3663 hdr = (struct ieee80211_hdr *) beacon->data;
3664 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3665 IEEE80211_STYPE_PROBE_RESP);
3666 if (is_ap)
3667 ret = wl1271_ap_set_probe_resp_tmpl_legacy(wl, vif,
3668 beacon->data,
3669 beacon->len,
3670 min_rate);
3671 else
3672 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
3673 CMD_TEMPL_PROBE_RESPONSE,
3674 beacon->data,
3675 beacon->len, 0,
3676 min_rate);
3677end_bcn:
3678 dev_kfree_skb(beacon);
3679 if (ret < 0)
3680 goto out;
3681
3682out:
3683 return ret;
3684}
3685
e78a287a
AN		 3686static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3687 struct ieee80211_vif *vif,
3688 struct ieee80211_bss_conf *bss_conf,
3689 u32 changed)
3690{
87fbcb0f 3691 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3692 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3693 int ret = 0;
3694
3695 if ((changed & BSS_CHANGED_BEACON_INT)) {
3696 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3697 bss_conf->beacon_int);
3698
6a899796 3699 wlvif->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3700 }
3701
560f0024
AN		 3702 if ((changed & BSS_CHANGED_AP_PROBE_RESP) && is_ap) {
3703 u32 rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
62c2e579
LC		 3704
3705 wl1271_ap_set_probe_resp_tmpl(wl, rate, vif);
560f0024
AN		 3706 }
3707
e78a287a 3708 if ((changed & BSS_CHANGED_BEACON)) {
62c2e579 3709 ret = wlcore_set_beacon_template(wl, vif, is_ap);
e78a287a
AN		 3710 if (ret < 0)
3711 goto out;
3712 }
3713
3714out:
560f0024
AN		 3715 if (ret != 0)
3716 wl1271_error("beacon info change failed: %d", ret);
e78a287a
AN		 3717 return ret;
3718}
3719
3720/* AP mode changes */
3721static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3722 struct ieee80211_vif *vif,
3723 struct ieee80211_bss_conf *bss_conf,
3724 u32 changed)
3725{
87fbcb0f 3726 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3727 int ret = 0;
e0d8bbf0 3728
e78a287a
AN		 3729 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3730 u32 rates = bss_conf->basic_rates;
5da11dcd 3731
87fbcb0f 3732 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 3733 wlvif->band);
d2d66c56 3734 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3735 wlvif->basic_rate_set);
70f47424 3736
87fbcb0f 3737 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3738 if (ret < 0) {
70f47424 3739 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3740 goto out;
3741 }
c45a85b5 3742
784f694d 3743 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3744 if (ret < 0)
3745 goto out;
62c2e579
LC		 3746
3747 ret = wl1271_ap_set_probe_resp_tmpl(wl, wlvif->basic_rate, vif);
3748 if (ret < 0)
3749 goto out;
3750
3751 ret = wlcore_set_beacon_template(wl, vif, true);
3752 if (ret < 0)
3753 goto out;
e78a287a 3754 }
2f6724b2 3755
e78a287a
AN		 3756 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3757 if (ret < 0)
3758 goto out;
30240fc7 3759
e78a287a
AN		 3760 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3761 if (bss_conf->enable_beacon) {
53d40d0b 3762 if (!test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
87fbcb0f 3763 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3764 if (ret < 0)
3765 goto out;
e0d8bbf0 3766
a8ab39a4 3767 ret = wl1271_ap_init_hwenc(wl, wlvif);
7f179b46
AN		 3768 if (ret < 0)
3769 goto out;
cf42039f 3770
53d40d0b 3771 set_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
cf42039f 3772 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3773 }
e78a287a 3774 } else {
53d40d0b 3775 if (test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
0603d891 3776 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
e78a287a
AN		 3777 if (ret < 0)
3778 goto out;
e0d8bbf0 3779
53d40d0b 3780 clear_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags);
560f0024
AN		 3781 clear_bit(WLVIF_FLAG_AP_PROBE_RESP_SET,
3782 &wlvif->flags);
e78a287a
AN		 3783 wl1271_debug(DEBUG_AP, "stopped AP");
3784 }
3785 }
3786 }
e0d8bbf0 3787
0603d891 3788 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3789 if (ret < 0)
3790 goto out;
0b932ab9
AN		 3791
3792 /* Handle HT information change */
3793 if ((changed & BSS_CHANGED_HT) &&
3794 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3795 ret = wl1271_acx_set_ht_information(wl, wlvif,
0b932ab9
AN		 3796 bss_conf->ht_operation_mode);
3797 if (ret < 0) {
3798 wl1271_warning("Set ht information failed %d", ret);
3799 goto out;
3800 }
3801 }
3802
e78a287a
AN		 3803out:
3804 return;
3805}
8bf29b0e 3806
e78a287a
AN		 3807/* STA/IBSS mode changes */
3808static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3809 struct ieee80211_vif *vif,
3810 struct ieee80211_bss_conf *bss_conf,
3811 u32 changed)
3812{
87fbcb0f 3813 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3814 bool do_join = false, set_assoc = false;
536129c8 3815 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3816 bool ibss_joined = false;
72c2d9e5 3817 u32 sta_rate_set = 0;
e78a287a 3818 int ret;
2d6e4e76 3819 struct ieee80211_sta *sta;
a100885d
AN		 3820 bool sta_exists = false;
3821 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3822
3823 if (is_ibss) {
3824 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3825 changed);
3826 if (ret < 0)
3827 goto out;
e0d8bbf0
JO		 3828 }
3829
227e81e1
EP		 3830 if (changed & BSS_CHANGED_IBSS) {
3831 if (bss_conf->ibss_joined) {
eee514e3 3832 set_bit(WLVIF_FLAG_IBSS_JOINED, &wlvif->flags);
227e81e1
EP		 3833 ibss_joined = true;
3834 } else {
eee514e3 3835 if (test_and_clear_bit(WLVIF_FLAG_IBSS_JOINED,
349345a4 3836 &wlvif->flags))
0603d891 3837 wl1271_unjoin(wl, wlvif);
227e81e1
EP		 3838 }
3839 }
3840
3841 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3842 do_join = true;
3843
3844 /* Need to update the SSID (for filtering etc) */
227e81e1 3845 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3846 do_join = true;
3847
227e81e1 3848 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3849 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3850 bss_conf->enable_beacon ? "enabled" : "disabled");
3851
5da11dcd
JO		 3852 do_join = true;
3853 }
3854
349345a4 3855 if (changed & BSS_CHANGED_IDLE && !is_ibss) {
c31e4946
EP		 3856 ret = wl1271_sta_handle_idle(wl, wlvif, bss_conf->idle);
3857 if (ret < 0)
3858 wl1271_warning("idle mode change failed %d", ret);
3859 }
3860
e78a287a 3861 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3862 bool enable = false;
3863 if (bss_conf->cqm_rssi_thold)
3864 enable = true;
0603d891 3865 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
00236aed
JO		 3866 bss_conf->cqm_rssi_thold,
3867 bss_conf->cqm_rssi_hyst);
3868 if (ret < 0)
3869 goto out;
04324d99 3870 wlvif->rssi_thold = bss_conf->cqm_rssi_thold;
00236aed
JO		 3871 }
3872
446f5ca1 3873 if (changed & BSS_CHANGED_BSSID)
cdf09495 3874 if (!is_zero_ether_addr(bss_conf->bssid)) {
d2d66c56 3875 ret = wl12xx_cmd_build_null_data(wl, wlvif);
fa287b8f
EP		 3876 if (ret < 0)
3877 goto out;
30240fc7 3878
784f694d 3879 ret = wl1271_build_qos_null_data(wl, vif);
fa287b8f
EP		 3880 if (ret < 0)
3881 goto out;
fa287b8f 3882 }
30240fc7 3883
0f9c8250
AN		 3884 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) {
3885 rcu_read_lock();
3886 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3887 if (!sta)
3888 goto sta_not_found;
3889
72c2d9e5
EP		 3890 /* save the supp_rates of the ap */
3891 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3892 if (sta->ht_cap.ht_supported)
3893 sta_rate_set |=
b3a47ee0
AN		 3894 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
3895 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
a100885d
AN		 3896 sta_ht_cap = sta->ht_cap;
3897 sta_exists = true;
72c2d9e5 3898
0f9c8250
AN		 3899sta_not_found:
3900 rcu_read_unlock();
72c2d9e5 3901 }
72c2d9e5 3902
e78a287a 3903 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3904 if (bss_conf->assoc) {
ebba60c6 3905 u32 rates;
2f6724b2 3906 int ieoffset;
6840e37a 3907 wlvif->aid = bss_conf->aid;
83d08d3f 3908 wlvif->channel_type = bss_conf->channel_type;
6667776d 3909 wlvif->beacon_int = bss_conf->beacon_int;
446f5ca1 3910 do_join = true;
69e5434c 3911 set_assoc = true;
f5fc0f86 3912
ebba60c6
JO		 3913 /*
3914 * use basic rates from AP, and determine lowest rate
3915 * to use with control frames.
3916 */
3917 rates = bss_conf->basic_rates;
87fbcb0f 3918 wlvif->basic_rate_set =
af7fbb28 3919 wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 3920 wlvif->band);
d2d66c56 3921 wlvif->basic_rate =
87fbcb0f
EP		 3922 wl1271_tx_min_rate_get(wl,
3923 wlvif->basic_rate_set);
72c2d9e5 3924 if (sta_rate_set)
30d0c8fd
EP		 3925 wlvif->rate_set =
3926 wl1271_tx_enabled_rates_get(wl,
af7fbb28 3927 sta_rate_set,
1b92f15e 3928 wlvif->band);
30d0c8fd 3929 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3930 if (ret < 0)
e78a287a 3931 goto out;
ebba60c6 3932
ae751bab
LC		 3933 /*
3934 * with wl1271, we don't need to update the
3935 * beacon_int and dtim_period, because the firmware
3936 * updates it by itself when the first beacon is
3937 * received after a join.
3938 */
6840e37a 3939 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
f5fc0f86 3940 if (ret < 0)
e78a287a 3941 goto out;
f5fc0f86 3942
c2b2d99b 3943 /*
2f6724b2 3944 * Get a template for hardware connection maintenance
c2b2d99b 3945 */
bddb29b8
EP		 3946 dev_kfree_skb(wlvif->probereq);
3947 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
83587505 3948 wlvif,
bddb29b8 3949 NULL);
2f6724b2
JO		 3950 ieoffset = offsetof(struct ieee80211_mgmt,
3951 u.probe_req.variable);
bddb29b8 3952 wl1271_ssid_set(vif, wlvif->probereq, ieoffset);
c2b2d99b 3953
6ccbb92e 3954 /* enable the connection monitoring feature */
0603d891 3955 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
f5fc0f86 3956 if (ret < 0)
e78a287a 3957 goto out;
d94cd297
JO		 3958 } else {
3959 /* use defaults when not associated */
30df14d0 3960 bool was_assoc =
ba8447f6
EP		 3961 !!test_and_clear_bit(WLVIF_FLAG_STA_ASSOCIATED,
3962 &wlvif->flags);
251c177f 3963 bool was_ifup =
8181aecc
EP		 3964 !!test_and_clear_bit(WLVIF_FLAG_STA_STATE_SENT,
3965 &wlvif->flags);
6840e37a 3966 wlvif->aid = 0;
6ccbb92e 3967
2f6724b2 3968 /* free probe-request template */
bddb29b8
EP		 3969 dev_kfree_skb(wlvif->probereq);
3970 wlvif->probereq = NULL;
2f6724b2 3971
ebba60c6 3972 /* revert back to minimum rates for the current band */
87fbcb0f 3973 wl1271_set_band_rate(wl, wlvif);
d2d66c56 3974 wlvif->basic_rate =
87fbcb0f
EP		 3975 wl1271_tx_min_rate_get(wl,
3976 wlvif->basic_rate_set);
30d0c8fd 3977 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3978 if (ret < 0)
e78a287a 3979 goto out;
ebba60c6 3980
6ccbb92e 3981 /* disable connection monitor features */
0603d891 3982 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
c1899554
JO		 3983
3984 /* Disable the keep-alive feature */
0603d891 3985 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
6ccbb92e 3986 if (ret < 0)
e78a287a 3987 goto out;
b84a7d3d
JO		 3988
3989 /* restore the bssid filter and go to dummy bssid */
30df14d0 3990 if (was_assoc) {
251c177f
EP		 3991 /*
3992 * we might have to disable roc, if there was
3993 * no IF_OPER_UP notification.
3994 */
3995 if (!was_ifup) {
0603d891 3996 ret = wl12xx_croc(wl, wlvif->role_id);
251c177f
EP		 3997 if (ret < 0)
3998 goto out;
3999 }
4000 /*
4001 * (we also need to disable roc in case of
4002 * roaming on the same channel. until we will
4003 * have a better flow...)
4004 */
7edebf56
EP		 4005 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
4006 ret = wl12xx_croc(wl,
4007 wlvif->dev_role_id);
251c177f
EP		 4008 if (ret < 0)
4009 goto out;
4010 }
4011
0603d891 4012 wl1271_unjoin(wl, wlvif);
8a6a84a4 4013 if (!bss_conf->idle)
679a6734 4014 wl12xx_start_dev(wl, wlvif);
30df14d0 4015 }
f5fc0f86 4016 }
f5fc0f86
LC		 4017 }
4018
d192d268
EP		 4019 if (changed & BSS_CHANGED_IBSS) {
4020 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
4021 bss_conf->ibss_joined);
4022
4023 if (bss_conf->ibss_joined) {
4024 u32 rates = bss_conf->basic_rates;
87fbcb0f 4025 wlvif->basic_rate_set =
af7fbb28 4026 wl1271_tx_enabled_rates_get(wl, rates,
1b92f15e 4027 wlvif->band);
d2d66c56 4028 wlvif->basic_rate =
87fbcb0f
EP		 4029 wl1271_tx_min_rate_get(wl,
4030 wlvif->basic_rate_set);
d192d268 4031
06b660e1 4032 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 4033 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
4034 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 4035 if (ret < 0)
4036 goto out;
4037 }
4038 }
4039
0603d891 4040 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 4041 if (ret < 0)
4042 goto out;
f5fc0f86 4043
8bf29b0e 4044 if (do_join) {
87fbcb0f 4045 ret = wl1271_join(wl, wlvif, set_assoc);
8bf29b0e
JO		 4046 if (ret < 0) {
4047 wl1271_warning("cmd join failed %d", ret);
e78a287a 4048 goto out;
8bf29b0e 4049 }
251c177f
EP		 4050
4051 /* ROC until connected (after EAPOL exchange) */
4052 if (!is_ibss) {
1b92f15e 4053 ret = wl12xx_roc(wl, wlvif, wlvif->role_id);
251c177f
EP		 4054 if (ret < 0)
4055 goto out;
4056
9fd6f21b
EP		 4057 if (test_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags))
4058 wl12xx_set_authorized(wl, wlvif);
251c177f
EP		 4059 }
4060 /*
4061 * stop device role if started (we might already be in
92e712da 4062 * STA/IBSS role).
251c177f 4063 */
92e712da 4064 if (wl12xx_dev_role_started(wlvif)) {
679a6734 4065 ret = wl12xx_stop_dev(wl, wlvif);
251c177f
EP		 4066 if (ret < 0)
4067 goto out;
4068 }
c1899554
JO		 4069 }
4070
0b932ab9 4071 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 4072 if (sta_exists) {
4073 if ((changed & BSS_CHANGED_HT) &&
4074 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 4075 ret = wl1271_acx_set_ht_capabilities(wl,
4076 &sta_ht_cap,
4077 true,
154da67c 4078 wlvif->sta.hlid);
0f9c8250
AN		 4079 if (ret < 0) {
4080 wl1271_warning("Set ht cap true failed %d",
4081 ret);
4082 goto out;
4083 }
4084 }
4085 /* handle new association without HT and disassociation */
4086 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 4087 ret = wl1271_acx_set_ht_capabilities(wl,
4088 &sta_ht_cap,
4089 false,
154da67c 4090 wlvif->sta.hlid);
0f9c8250
AN		 4091 if (ret < 0) {
4092 wl1271_warning("Set ht cap false failed %d",
4093 ret);
4094 goto out;
4095 }
4096 }
4097 }
4098
0b932ab9
AN		 4099 /* Handle HT information change. Done after join. */
4100 if ((changed & BSS_CHANGED_HT) &&
0f9c8250 4101 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 4102 ret = wl1271_acx_set_ht_information(wl, wlvif,
0f9c8250
AN		 4103 bss_conf->ht_operation_mode);
4104 if (ret < 0) {
4105 wl1271_warning("Set ht information failed %d", ret);
4106 goto out;
4107 }
4108 }
4109
76a74c8a
EP		 4110 /* Handle arp filtering. Done after join. */
4111 if ((changed & BSS_CHANGED_ARP_FILTER) ||
4112 (!is_ibss && (changed & BSS_CHANGED_QOS))) {
4113 __be32 addr = bss_conf->arp_addr_list[0];
4114 wlvif->sta.qos = bss_conf->qos;
4115 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
4116
4117 if (bss_conf->arp_addr_cnt == 1 &&
4118 bss_conf->arp_filter_enabled) {
4119 wlvif->ip_addr = addr;
4120 /*
4121 * The template should have been configured only upon
4122 * association. however, it seems that the correct ip
4123 * isn't being set (when sending), so we have to
4124 * reconfigure the template upon every ip change.
4125 */
4126 ret = wl1271_cmd_build_arp_rsp(wl, wlvif);
4127 if (ret < 0) {
4128 wl1271_warning("build arp rsp failed: %d", ret);
4129 goto out;
4130 }
4131
4132 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
4133 (ACX_ARP_FILTER_ARP_FILTERING |
4134 ACX_ARP_FILTER_AUTO_ARP),
4135 addr);
4136 } else {
4137 wlvif->ip_addr = 0;
4138 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
4139 }
4140
4141 if (ret < 0)
4142 goto out;
4143 }
4144
e78a287a
AN		 4145out:
4146 return;
4147}
4148
4149static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
4150 struct ieee80211_vif *vif,
4151 struct ieee80211_bss_conf *bss_conf,
4152 u32 changed)
4153{
4154 struct wl1271 *wl = hw->priv;
536129c8
EP		 4155 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4156 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 4157 int ret;
4158
4159 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
4160 (int)changed);
4161
6b8bf5bc
AN		 4162 /*
4163 * make sure to cancel pending disconnections if our association
4164 * state changed
4165 */
4166 if (!is_ap && (changed & BSS_CHANGED_ASSOC))
4167 cancel_delayed_work_sync(&wl->connection_loss_work);
4168
b515d83a
EP		 4169 if (is_ap && (changed & BSS_CHANGED_BEACON_ENABLED) &&
4170 !bss_conf->enable_beacon)
4171 wl1271_tx_flush(wl);
4172
e78a287a
AN		 4173 mutex_lock(&wl->mutex);
4174
4cc53383 4175 if (unlikely(wl->state != WLCORE_STATE_ON))
e78a287a
AN		 4176 goto out;
4177
10c8cd01
EP		 4178 if (unlikely(!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags)))
4179 goto out;
4180
a620865e 4181 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 4182 if (ret < 0)
4183 goto out;
4184
4185 if (is_ap)
4186 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
4187 else
4188 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
4189
f5fc0f86
LC		 4190 wl1271_ps_elp_sleep(wl);
4191
4192out:
4193 mutex_unlock(&wl->mutex);
4194}
4195
8a3a3c85
EP		 4196static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
4197 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 4198 const struct ieee80211_tx_queue_params *params)
4199{
4200 struct wl1271 *wl = hw->priv;
0603d891 4201 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4695dc91 4202 u8 ps_scheme;
488fc540 4203 int ret = 0;
c6999d83
KV		 4204
4205 mutex_lock(&wl->mutex);
4206
4207 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
4208
4695dc91
KV		 4209 if (params->uapsd)
4210 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
4211 else
4212 ps_scheme = CONF_PS_SCHEME_LEGACY;
4213
5b37ddfe 4214 if (!test_bit(WLVIF_FLAG_INITIALIZED, &wlvif->flags))
c1b193eb 4215 goto out;
488fc540 4216
c1b193eb
EP		 4217 ret = wl1271_ps_elp_wakeup(wl);
4218 if (ret < 0)
4219 goto out;
488fc540 4220
c1b193eb
EP		 4221 /*
4222 * the txop is confed in units of 32us by the mac80211,
4223 * we need us
4224 */
0603d891 4225 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4226 params->cw_min, params->cw_max,
4227 params->aifs, params->txop << 5);
4228 if (ret < 0)
4229 goto out_sleep;
4230
0603d891 4231 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 4232 CONF_CHANNEL_TYPE_EDCF,
4233 wl1271_tx_get_queue(queue),
4234 ps_scheme, CONF_ACK_POLICY_LEGACY,
4235 0, 0);
c82c1dde
KV		 4236
4237out_sleep:
c1b193eb 4238 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 4239
4240out:
4241 mutex_unlock(&wl->mutex);
4242
4243 return ret;
4244}
4245
37a41b4a
EP		 4246static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
4247 struct ieee80211_vif *vif)
bbbb538e
JO		 4248{
4249
4250 struct wl1271 *wl = hw->priv;
9c531149 4251 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbbb538e
JO		 4252 u64 mactime = ULLONG_MAX;
4253 int ret;
4254
4255 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
4256
4257 mutex_lock(&wl->mutex);
4258
4cc53383 4259 if (unlikely(wl->state != WLCORE_STATE_ON))
f8d9802f
JO		 4260 goto out;
4261
a620865e 4262 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 4263 if (ret < 0)
4264 goto out;
4265
9c531149 4266 ret = wl12xx_acx_tsf_info(wl, wlvif, &mactime);
bbbb538e
JO		 4267 if (ret < 0)
4268 goto out_sleep;
4269
4270out_sleep:
4271 wl1271_ps_elp_sleep(wl);
4272
4273out:
4274 mutex_unlock(&wl->mutex);
4275 return mactime;
4276}
f5fc0f86 4277
ece550d0
JL		 4278static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
4279 struct survey_info *survey)
4280{
ece550d0 4281 struct ieee80211_conf *conf = &hw->conf;
b739a42c 4282
ece550d0
JL		 4283 if (idx != 0)
4284 return -ENOENT;
b739a42c 4285
ece550d0 4286 survey->channel = conf->channel;
add779a0 4287 survey->filled = 0;
ece550d0
JL		 4288 return 0;
4289}
4290
409622ec 4291static int wl1271_allocate_sta(struct wl1271 *wl,
c7ffb902
EP		 4292 struct wl12xx_vif *wlvif,
4293 struct ieee80211_sta *sta)
f84f7d78
AN		 4294{
4295 struct wl1271_station *wl_sta;
c7ffb902 4296 int ret;
f84f7d78 4297
c7ffb902
EP		 4298
4299 if (wl->active_sta_count >= AP_MAX_STATIONS) {
f84f7d78
AN		 4300 wl1271_warning("could not allocate HLID - too much stations");
4301 return -EBUSY;
4302 }
4303
4304 wl_sta = (struct wl1271_station *)sta->drv_priv;
c7ffb902
EP		 4305 ret = wl12xx_allocate_link(wl, wlvif, &wl_sta->hlid);
4306 if (ret < 0) {
4307 wl1271_warning("could not allocate HLID - too many links");
4308 return -EBUSY;
4309 }
4310
4311 set_bit(wl_sta->hlid, wlvif->ap.sta_hlid_map);
b622d992 4312 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 4313 wl->active_sta_count++;
f84f7d78
AN		 4314 return 0;
4315}
4316
c7ffb902 4317void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
f84f7d78 4318{
c7ffb902 4319 if (!test_bit(hlid, wlvif->ap.sta_hlid_map))
f1acea9a
AN		 4320 return;
4321
c7ffb902 4322 clear_bit(hlid, wlvif->ap.sta_hlid_map);
b622d992 4323 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 4324 wl->links[hlid].ba_bitmap = 0;
b622d992
AN		 4325 __clear_bit(hlid, &wl->ap_ps_map);
4326 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
c7ffb902 4327 wl12xx_free_link(wl, wlvif, &hlid);
da03209e 4328 wl->active_sta_count--;
55df5afb
AN		 4329
4330 /*
4331 * rearm the tx watchdog when the last STA is freed - give the FW a
4332 * chance to return STA-buffered packets before complaining.
4333 */
4334 if (wl->active_sta_count == 0)
4335 wl12xx_rearm_tx_watchdog_locked(wl);
f84f7d78
AN		 4336}
4337
2d6cf2b5
EP		 4338static int wl12xx_sta_add(struct wl1271 *wl,
4339 struct wl12xx_vif *wlvif,
4340 struct ieee80211_sta *sta)
f84f7d78 4341{
c7ffb902 4342 struct wl1271_station *wl_sta;
f84f7d78
AN		 4343 int ret = 0;
4344 u8 hlid;
4345
f84f7d78
AN		 4346 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
4347
c7ffb902 4348 ret = wl1271_allocate_sta(wl, wlvif, sta);
f84f7d78 4349 if (ret < 0)
2d6cf2b5 4350 return ret;
f84f7d78 4351
c7ffb902
EP		 4352 wl_sta = (struct wl1271_station *)sta->drv_priv;
4353 hlid = wl_sta->hlid;
4354
1b92f15e 4355 ret = wl12xx_cmd_add_peer(wl, wlvif, sta, hlid);
f84f7d78 4356 if (ret < 0)
2d6cf2b5 4357 wl1271_free_sta(wl, wlvif, hlid);
f84f7d78 4358
2d6cf2b5
EP		 4359 return ret;
4360}
b67476ef 4361
2d6cf2b5
EP		 4362static int wl12xx_sta_remove(struct wl1271 *wl,
4363 struct wl12xx_vif *wlvif,
4364 struct ieee80211_sta *sta)
4365{
4366 struct wl1271_station *wl_sta;
4367 int ret = 0, id;
0b932ab9 4368
2d6cf2b5
EP		 4369 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4370
4371 wl_sta = (struct wl1271_station *)sta->drv_priv;
4372 id = wl_sta->hlid;
4373 if (WARN_ON(!test_bit(id, wlvif->ap.sta_hlid_map)))
4374 return -EINVAL;
f84f7d78 4375
2d6cf2b5 4376 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
409622ec 4377 if (ret < 0)
2d6cf2b5 4378 return ret;
409622ec 4379
2d6cf2b5 4380 wl1271_free_sta(wl, wlvif, wl_sta->hlid);
f84f7d78
AN		 4381 return ret;
4382}
4383
2d6cf2b5
EP		 4384static int wl12xx_update_sta_state(struct wl1271 *wl,
4385 struct wl12xx_vif *wlvif,
4386 struct ieee80211_sta *sta,
4387 enum ieee80211_sta_state old_state,
4388 enum ieee80211_sta_state new_state)
f84f7d78 4389{
f84f7d78 4390 struct wl1271_station *wl_sta;
2d6cf2b5
EP		 4391 u8 hlid;
4392 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
4393 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
4394 int ret;
f84f7d78 4395
2d6cf2b5
EP		 4396 wl_sta = (struct wl1271_station *)sta->drv_priv;
4397 hlid = wl_sta->hlid;
f84f7d78 4398
2d6cf2b5
EP		 4399 /* Add station (AP mode) */
4400 if (is_ap &&
4401 old_state == IEEE80211_STA_NOTEXIST &&
4402 new_state == IEEE80211_STA_NONE)
4403 return wl12xx_sta_add(wl, wlvif, sta);
4404
4405 /* Remove station (AP mode) */
4406 if (is_ap &&
4407 old_state == IEEE80211_STA_NONE &&
4408 new_state == IEEE80211_STA_NOTEXIST) {
4409 /* must not fail */
4410 wl12xx_sta_remove(wl, wlvif, sta);
4411 return 0;
4412 }
f84f7d78 4413
2d6cf2b5
EP		 4414 /* Authorize station (AP mode) */
4415 if (is_ap &&
4416 new_state == IEEE80211_STA_AUTHORIZED) {
4417 ret = wl12xx_cmd_set_peer_state(wl, hlid);
4418 if (ret < 0)
4419 return ret;
f84f7d78 4420
2d6cf2b5
EP		 4421 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true,
4422 hlid);
4423 return ret;
4424 }
f84f7d78 4425
9fd6f21b
EP		 4426 /* Authorize station */
4427 if (is_sta &&
4428 new_state == IEEE80211_STA_AUTHORIZED) {
4429 set_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
4430 return wl12xx_set_authorized(wl, wlvif);
4431 }
4432
4433 if (is_sta &&
4434 old_state == IEEE80211_STA_AUTHORIZED &&
4435 new_state == IEEE80211_STA_ASSOC) {
4436 clear_bit(WLVIF_FLAG_STA_AUTHORIZED, &wlvif->flags);
4437 return 0;
4438 }
4439
2d6cf2b5
EP		 4440 return 0;
4441}
4442
4443static int wl12xx_op_sta_state(struct ieee80211_hw *hw,
4444 struct ieee80211_vif *vif,
4445 struct ieee80211_sta *sta,
4446 enum ieee80211_sta_state old_state,
4447 enum ieee80211_sta_state new_state)
4448{
4449 struct wl1271 *wl = hw->priv;
4450 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4451 int ret;
4452
4453 wl1271_debug(DEBUG_MAC80211, "mac80211 sta %d state=%d->%d",
4454 sta->aid, old_state, new_state);
4455
4456 mutex_lock(&wl->mutex);
4457
4cc53383 4458 if (unlikely(wl->state != WLCORE_STATE_ON)) {
2d6cf2b5 4459 ret = -EBUSY;
f84f7d78 4460 goto out;
2d6cf2b5 4461 }
f84f7d78 4462
a620865e 4463 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4464 if (ret < 0)
4465 goto out;
4466
2d6cf2b5 4467 ret = wl12xx_update_sta_state(wl, wlvif, sta, old_state, new_state);
f84f7d78 4468
f84f7d78 4469 wl1271_ps_elp_sleep(wl);
f84f7d78
AN		 4470out:
4471 mutex_unlock(&wl->mutex);
2d6cf2b5
EP		 4472 if (new_state < old_state)
4473 return 0;
f84f7d78
AN		 4474 return ret;
4475}
4476
4623ec7d
LC		 4477static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4478 struct ieee80211_vif *vif,
4479 enum ieee80211_ampdu_mlme_action action,
4480 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4481 u8 buf_size)
bbba3e68
LS		 4482{
4483 struct wl1271 *wl = hw->priv;
536129c8 4484 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4485 int ret;
0f9c8250
AN		 4486 u8 hlid, *ba_bitmap;
4487
4488 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4489 tid);
4490
4491 /* sanity check - the fields in FW are only 8bits wide */
4492 if (WARN_ON(tid > 0xFF))
4493 return -ENOTSUPP;
bbba3e68
LS		 4494
4495 mutex_lock(&wl->mutex);
4496
4cc53383 4497 if (unlikely(wl->state != WLCORE_STATE_ON)) {
bbba3e68
LS		 4498 ret = -EAGAIN;
4499 goto out;
4500 }
4501
536129c8 4502 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
154da67c 4503 hlid = wlvif->sta.hlid;
d0802abd 4504 ba_bitmap = &wlvif->sta.ba_rx_bitmap;
536129c8 4505 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4506 struct wl1271_station *wl_sta;
4507
4508 wl_sta = (struct wl1271_station *)sta->drv_priv;
4509 hlid = wl_sta->hlid;
4510 ba_bitmap = &wl->links[hlid].ba_bitmap;
4511 } else {
4512 ret = -EINVAL;
4513 goto out;
4514 }
4515
a620865e 4516 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4517 if (ret < 0)
4518 goto out;
4519
70559a06
SL		 4520 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4521 tid, action);
4522
bbba3e68
LS		 4523 switch (action) {
4524 case IEEE80211_AMPDU_RX_START:
d0802abd 4525 if (!wlvif->ba_support || !wlvif->ba_allowed) {
bbba3e68 4526 ret = -ENOTSUPP;
0f9c8250
AN		 4527 break;
4528 }
4529
4530 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4531 ret = -EBUSY;
4532 wl1271_error("exceeded max RX BA sessions");
4533 break;
4534 }
4535
4536 if (*ba_bitmap & BIT(tid)) {
4537 ret = -EINVAL;
4538 wl1271_error("cannot enable RX BA session on active "
4539 "tid: %d", tid);
4540 break;
4541 }
4542
4543 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4544 hlid);
4545 if (!ret) {
4546 *ba_bitmap |= BIT(tid);
4547 wl->ba_rx_session_count++;
bbba3e68
LS		 4548 }
4549 break;
4550
4551 case IEEE80211_AMPDU_RX_STOP:
0f9c8250 4552 if (!(*ba_bitmap & BIT(tid))) {
c954910b
AN		 4553 /*
4554 * this happens on reconfig - so only output a debug
4555 * message for now, and don't fail the function.
4556 */
4557 wl1271_debug(DEBUG_MAC80211,
4558 "no active RX BA session on tid: %d",
0f9c8250 4559 tid);
c954910b 4560 ret = 0;
0f9c8250
AN		 4561 break;
4562 }
4563
4564 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4565 hlid);
4566 if (!ret) {
4567 *ba_bitmap &= ~BIT(tid);
4568 wl->ba_rx_session_count--;
4569 }
bbba3e68
LS		 4570 break;
4571
4572 /*
4573 * The BA initiator session management in FW independently.
4574 * Falling break here on purpose for all TX APDU commands.
4575 */
4576 case IEEE80211_AMPDU_TX_START:
4577 case IEEE80211_AMPDU_TX_STOP:
4578 case IEEE80211_AMPDU_TX_OPERATIONAL:
4579 ret = -EINVAL;
4580 break;
4581
4582 default:
4583 wl1271_error("Incorrect ampdu action id=%x\n", action);
4584 ret = -EINVAL;
4585 }
4586
4587 wl1271_ps_elp_sleep(wl);
4588
4589out:
4590 mutex_unlock(&wl->mutex);
4591
4592 return ret;
4593}
4594
af7fbb28
EP		 4595static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4596 struct ieee80211_vif *vif,
4597 const struct cfg80211_bitrate_mask *mask)
4598{
83587505 4599 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
af7fbb28 4600 struct wl1271 *wl = hw->priv;
d6fa37c9 4601 int i, ret = 0;
af7fbb28
EP		 4602
4603 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4604 mask->control[NL80211_BAND_2GHZ].legacy,
4605 mask->control[NL80211_BAND_5GHZ].legacy);
4606
4607 mutex_lock(&wl->mutex);
4608
091185d6 4609 for (i = 0; i < WLCORE_NUM_BANDS; i++)
83587505 4610 wlvif->bitrate_masks[i] =
af7fbb28
EP		 4611 wl1271_tx_enabled_rates_get(wl,
4612 mask->control[i].legacy,
4613 i);
d6fa37c9 4614
4cc53383 4615 if (unlikely(wl->state != WLCORE_STATE_ON))
d6fa37c9
EP		 4616 goto out;
4617
4618 if (wlvif->bss_type == BSS_TYPE_STA_BSS &&
4619 !test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags)) {
4620
4621 ret = wl1271_ps_elp_wakeup(wl);
4622 if (ret < 0)
4623 goto out;
4624
4625 wl1271_set_band_rate(wl, wlvif);
4626 wlvif->basic_rate =
4627 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
4628 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
4629
4630 wl1271_ps_elp_sleep(wl);
4631 }
4632out:
af7fbb28
EP		 4633 mutex_unlock(&wl->mutex);
4634
d6fa37c9 4635 return ret;
af7fbb28
EP		 4636}
4637
6d158ff3
SL		 4638static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4639 struct ieee80211_channel_switch *ch_switch)
4640{
4641 struct wl1271 *wl = hw->priv;
52630c5d 4642 struct wl12xx_vif *wlvif;
6d158ff3
SL		 4643 int ret;
4644
4645 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4646
b9239b66
AN		 4647 wl1271_tx_flush(wl);
4648
6d158ff3
SL		 4649 mutex_lock(&wl->mutex);
4650
4cc53383 4651 if (unlikely(wl->state == WLCORE_STATE_OFF)) {
6e8cd331
EP		 4652 wl12xx_for_each_wlvif_sta(wl, wlvif) {
4653 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
4654 ieee80211_chswitch_done(vif, false);
4655 }
4656 goto out;
4cc53383
IY		 4657 } else if (unlikely(wl->state != WLCORE_STATE_ON)) {
4658 goto out;
6d158ff3
SL		 4659 }
4660
4661 ret = wl1271_ps_elp_wakeup(wl);
4662 if (ret < 0)
4663 goto out;
4664
52630c5d
EP		 4665 /* TODO: change mac80211 to pass vif as param */
4666 wl12xx_for_each_wlvif_sta(wl, wlvif) {
8332f0f6 4667 ret = wl12xx_cmd_channel_switch(wl, wlvif, ch_switch);
6d158ff3 4668
52630c5d
EP		 4669 if (!ret)
4670 set_bit(WLVIF_FLAG_CS_PROGRESS, &wlvif->flags);
4671 }
6d158ff3
SL		 4672
4673 wl1271_ps_elp_sleep(wl);
4674
4675out:
4676 mutex_unlock(&wl->mutex);
4677}
4678
d8ae5a25
EP		 4679static void wlcore_op_flush(struct ieee80211_hw *hw, bool drop)
4680{
4681 struct wl1271 *wl = hw->priv;
4682
4683 wl1271_tx_flush(wl);
4684}
4685
33437893
AN		 4686static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4687{
4688 struct wl1271 *wl = hw->priv;
4689 bool ret = false;
4690
4691 mutex_lock(&wl->mutex);
4692
4cc53383 4693 if (unlikely(wl->state != WLCORE_STATE_ON))
33437893
AN		 4694 goto out;
4695
4696 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4697 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4698out:
4699 mutex_unlock(&wl->mutex);
4700
4701 return ret;
4702}
4703
f5fc0f86
LC		 4704/* can't be const, mac80211 writes to this */
4705static struct ieee80211_rate wl1271_rates[] = {
4706 { .bitrate = 10,
2b60100b
JO		 4707 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4708 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4709 { .bitrate = 20,
2b60100b
JO		 4710 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4711 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4712 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4713 { .bitrate = 55,
2b60100b
JO		 4714 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4715 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4716 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4717 { .bitrate = 110,
2b60100b
JO		 4718 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4719 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4720 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4721 { .bitrate = 60,
2b60100b
JO		 4722 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4723 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4724 { .bitrate = 90,
2b60100b
JO		 4725 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4726 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4727 { .bitrate = 120,
2b60100b
JO		 4728 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4729 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4730 { .bitrate = 180,
2b60100b
JO		 4731 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4732 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4733 { .bitrate = 240,
2b60100b
JO		 4734 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4735 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4736 { .bitrate = 360,
2b60100b
JO		 4737 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4738 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4739 { .bitrate = 480,
2b60100b
JO		 4740 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4741 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4742 { .bitrate = 540,
2b60100b
JO		 4743 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4744 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4745};
4746
fa97f46b 4747/* can't be const, mac80211 writes to this */
f5fc0f86 4748static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4749 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4750 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4751 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4752 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4753 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4754 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4755 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4756 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4757 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4758 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4759 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4760 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4761 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4762 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4763};
4764
4765/* can't be const, mac80211 writes to this */
4766static struct ieee80211_supported_band wl1271_band_2ghz = {
4767 .channels = wl1271_channels,
4768 .n_channels = ARRAY_SIZE(wl1271_channels),
4769 .bitrates = wl1271_rates,
4770 .n_bitrates = ARRAY_SIZE(wl1271_rates),
4771};
4772
1ebec3d7
TP		 4773/* 5 GHz data rates for WL1273 */
4774static struct ieee80211_rate wl1271_rates_5ghz[] = {
4775 { .bitrate = 60,
4776 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4777 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4778 { .bitrate = 90,
4779 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4780 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4781 { .bitrate = 120,
4782 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4783 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4784 { .bitrate = 180,
4785 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4786 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4787 { .bitrate = 240,
4788 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4789 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4790 { .bitrate = 360,
4791 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4792 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4793 { .bitrate = 480,
4794 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4795 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4796 { .bitrate = 540,
4797 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4798 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4799};
4800
fa97f46b 4801/* 5 GHz band channels for WL1273 */
1ebec3d7 4802static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4803 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4804 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4805 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4806 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4807 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4808 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4809 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4810 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4811 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4812 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4813 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4814 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4815 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4816 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4817 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4818 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4819 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4820 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4821 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4822 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4823 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4824 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4825 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4826 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4827 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4828 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4829 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4830 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4831 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4832 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4833 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4834 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4835 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4836 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4837};
4838
1ebec3d7
TP		 4839static struct ieee80211_supported_band wl1271_band_5ghz = {
4840 .channels = wl1271_channels_5ghz,
4841 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4842 .bitrates = wl1271_rates_5ghz,
4843 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
f876bb9a
JO		 4844};
4845
f5fc0f86
LC		 4846static const struct ieee80211_ops wl1271_ops = {
4847 .start = wl1271_op_start,
c24ec83b 4848 .stop = wlcore_op_stop,
f5fc0f86
LC		 4849 .add_interface = wl1271_op_add_interface,
4850 .remove_interface = wl1271_op_remove_interface,
c0fad1b7 4851 .change_interface = wl12xx_op_change_interface,
f634a4e7 4852#ifdef CONFIG_PM
402e4861
EP		 4853 .suspend = wl1271_op_suspend,
4854 .resume = wl1271_op_resume,
f634a4e7 4855#endif
f5fc0f86 4856 .config = wl1271_op_config,
c87dec9f 4857 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4858 .configure_filter = wl1271_op_configure_filter,
4859 .tx = wl1271_op_tx,
a1c597f2 4860 .set_key = wlcore_op_set_key,
f5fc0f86 4861 .hw_scan = wl1271_op_hw_scan,
73ecce31 4862 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4863 .sched_scan_start = wl1271_op_sched_scan_start,
4864 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4865 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4866 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4867 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4868 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4869 .get_tsf = wl1271_op_get_tsf,
ece550d0 4870 .get_survey = wl1271_op_get_survey,
2d6cf2b5 4871 .sta_state = wl12xx_op_sta_state,
bbba3e68 4872 .ampdu_action = wl1271_op_ampdu_action,
33437893 4873 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 4874 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 4875 .channel_switch = wl12xx_op_channel_switch,
d8ae5a25 4876 .flush = wlcore_op_flush,
c8c90873 4877 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4878};
4879
f876bb9a 4880
43a8bc5a 4881u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
f876bb9a
JO		 4882{
4883 u8 idx;
4884
43a8bc5a 4885 BUG_ON(band >= 2);
f876bb9a 4886
43a8bc5a 4887 if (unlikely(rate >= wl->hw_tx_rate_tbl_size)) {
f876bb9a
JO		 4888 wl1271_error("Illegal RX rate from HW: %d", rate);
4889 return 0;
4890 }
4891
43a8bc5a 4892 idx = wl->band_rate_to_idx[band][rate];
f876bb9a
JO		 4893 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4894 wl1271_error("Unsupported RX rate from HW: %d", rate);
4895 return 0;
4896 }
4897
4898 return idx;
4899}
4900
7fc3a864
JO		 4901static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4902 struct device_attribute *attr,
4903 char *buf)
4904{
4905 struct wl1271 *wl = dev_get_drvdata(dev);
4906 ssize_t len;
4907
2f63b011 4908 len = PAGE_SIZE;
7fc3a864
JO		 4909
4910 mutex_lock(&wl->mutex);
4911 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4912 wl->sg_enabled);
4913 mutex_unlock(&wl->mutex);
4914
4915 return len;
4916
4917}
4918
4919static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4920 struct device_attribute *attr,
4921 const char *buf, size_t count)
4922{
4923 struct wl1271 *wl = dev_get_drvdata(dev);
4924 unsigned long res;
4925 int ret;
4926
6277ed65 4927 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4928 if (ret < 0) {
4929 wl1271_warning("incorrect value written to bt_coex_mode");
4930 return count;
4931 }
4932
4933 mutex_lock(&wl->mutex);
4934
4935 res = !!res;
4936
4937 if (res == wl->sg_enabled)
4938 goto out;
4939
4940 wl->sg_enabled = res;
4941
4cc53383 4942 if (unlikely(wl->state != WLCORE_STATE_ON))
7fc3a864
JO		 4943 goto out;
4944
a620865e 4945 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4946 if (ret < 0)
4947 goto out;
4948
4949 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4950 wl1271_ps_elp_sleep(wl);
4951
4952 out:
4953 mutex_unlock(&wl->mutex);
4954 return count;
4955}
4956
4957static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4958 wl1271_sysfs_show_bt_coex_state,
4959 wl1271_sysfs_store_bt_coex_state);
4960
d717fd61
JO		 4961static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4962 struct device_attribute *attr,
4963 char *buf)
4964{
4965 struct wl1271 *wl = dev_get_drvdata(dev);
4966 ssize_t len;
4967
2f63b011 4968 len = PAGE_SIZE;
d717fd61
JO		 4969
4970 mutex_lock(&wl->mutex);
4971 if (wl->hw_pg_ver >= 0)
4972 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4973 else
4974 len = snprintf(buf, len, "n/a\n");
4975 mutex_unlock(&wl->mutex);
4976
4977 return len;
4978}
4979
6f07b72a 4980static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4981 wl1271_sysfs_show_hw_pg_ver, NULL);
4982
95dac04f
IY		 4983static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4984 struct bin_attribute *bin_attr,
4985 char *buffer, loff_t pos, size_t count)
4986{
4987 struct device *dev = container_of(kobj, struct device, kobj);
4988 struct wl1271 *wl = dev_get_drvdata(dev);
4989 ssize_t len;
4990 int ret;
4991
4992 ret = mutex_lock_interruptible(&wl->mutex);
4993 if (ret < 0)
4994 return -ERESTARTSYS;
4995
4996 /* Let only one thread read the log at a time, blocking others */
4997 while (wl->fwlog_size == 0) {
4998 DEFINE_WAIT(wait);
4999
5000 prepare_to_wait_exclusive(&wl->fwlog_waitq,
5001 &wait,
5002 TASK_INTERRUPTIBLE);
5003
5004 if (wl->fwlog_size != 0) {
5005 finish_wait(&wl->fwlog_waitq, &wait);
5006 break;
5007 }
5008
5009 mutex_unlock(&wl->mutex);
5010
5011 schedule();
5012 finish_wait(&wl->fwlog_waitq, &wait);
5013
5014 if (signal_pending(current))
5015 return -ERESTARTSYS;
5016
5017 ret = mutex_lock_interruptible(&wl->mutex);
5018 if (ret < 0)
5019 return -ERESTARTSYS;
5020 }
5021
5022 /* Check if the fwlog is still valid */
5023 if (wl->fwlog_size < 0) {
5024 mutex_unlock(&wl->mutex);
5025 return 0;
5026 }
5027
5028 /* Seeking is not supported - old logs are not kept. Disregard pos. */
5029 len = min(count, (size_t)wl->fwlog_size);
5030 wl->fwlog_size -= len;
5031 memcpy(buffer, wl->fwlog, len);
5032
5033 /* Make room for new messages */
5034 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
5035
5036 mutex_unlock(&wl->mutex);
5037
5038 return len;
5039}
5040
5041static struct bin_attribute fwlog_attr = {
5042 .attr = {.name = "fwlog", .mode = S_IRUSR},
5043 .read = wl1271_sysfs_read_fwlog,
5044};
5045
22479972 5046static void wl1271_connection_loss_work(struct work_struct *work)
5f561f68
BM		 5047{
5048 struct delayed_work *dwork;
5049 struct wl1271 *wl;
5050 struct ieee80211_vif *vif;
5051 struct wl12xx_vif *wlvif;
5052
5053 dwork = container_of(work, struct delayed_work, work);
5054 wl = container_of(dwork, struct wl1271, connection_loss_work);
5055
5056 wl1271_info("Connection loss work.");
5057
5058 mutex_lock(&wl->mutex);
5059
4cc53383 5060 if (unlikely(wl->state != WLCORE_STATE_ON))
5f561f68
BM		 5061 goto out;
5062
5063 /* Call mac80211 connection loss */
5064 wl12xx_for_each_wlvif_sta(wl, wlvif) {
5065 if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
5066 goto out;
5067 vif = wl12xx_wlvif_to_vif(wlvif);
5068 ieee80211_connection_loss(vif);
5069 }
5070out:
5071 mutex_unlock(&wl->mutex);
5072}
5073
f4afbed9 5074static void wl12xx_derive_mac_addresses(struct wl1271 *wl, u32 oui, u32 nic)
5e037e74
LC		 5075{
5076 int i;
5077
f4afbed9
AN		 5078 wl1271_debug(DEBUG_PROBE, "base address: oui %06x nic %06x",
5079 oui, nic);
5e037e74 5080
f4afbed9 5081 if (nic + WLCORE_NUM_MAC_ADDRESSES - wl->num_mac_addr > 0xffffff)
5e037e74
LC		 5082 wl1271_warning("NIC part of the MAC address wraps around!");
5083
f4afbed9 5084 for (i = 0; i < wl->num_mac_addr; i++) {
5e037e74
LC		 5085 wl->addresses[i].addr[0] = (u8)(oui >> 16);
5086 wl->addresses[i].addr[1] = (u8)(oui >> 8);
5087 wl->addresses[i].addr[2] = (u8) oui;
5088 wl->addresses[i].addr[3] = (u8)(nic >> 16);
5089 wl->addresses[i].addr[4] = (u8)(nic >> 8);
5090 wl->addresses[i].addr[5] = (u8) nic;
5091 nic++;
5092 }
5093
f4afbed9
AN		 5094 /* we may be one address short at the most */
5095 WARN_ON(wl->num_mac_addr + 1 < WLCORE_NUM_MAC_ADDRESSES);
5096
5097 /*
5098 * turn on the LAA bit in the first address and use it as
5099 * the last address.
5100 */
5101 if (wl->num_mac_addr < WLCORE_NUM_MAC_ADDRESSES) {
5102 int idx = WLCORE_NUM_MAC_ADDRESSES - 1;
5103 memcpy(&wl->addresses[idx], &wl->addresses[0],
5104 sizeof(wl->addresses[0]));
5105 /* LAA bit */
5106 wl->addresses[idx].addr[2] |= BIT(1);
5107 }
5108
5109 wl->hw->wiphy->n_addresses = WLCORE_NUM_MAC_ADDRESSES;
5e037e74
LC		 5110 wl->hw->wiphy->addresses = wl->addresses;
5111}
5112
30c5dbd1
LC		 5113static int wl12xx_get_hw_info(struct wl1271 *wl)
5114{
5115 int ret;
30c5dbd1
LC		 5116
5117 ret = wl12xx_set_power_on(wl);
5118 if (ret < 0)
4fb4e0be 5119 return ret;
30c5dbd1 5120
6134323f
IY		 5121 ret = wlcore_read_reg(wl, REG_CHIP_ID_B, &wl->chip.id);
5122 if (ret < 0)
5123 goto out;
30c5dbd1 5124
00782136
LC		 5125 wl->fuse_oui_addr = 0;
5126 wl->fuse_nic_addr = 0;
30c5dbd1 5127
6134323f
IY		 5128 ret = wl->ops->get_pg_ver(wl, &wl->hw_pg_ver);
5129 if (ret < 0)
5130 goto out;
30c5dbd1 5131
30d9b4a5 5132 if (wl->ops->get_mac)
6134323f 5133 ret = wl->ops->get_mac(wl);
5e037e74 5134
30c5dbd1 5135out:
6134323f 5136 wl1271_power_off(wl);
30c5dbd1
LC		 5137 return ret;
5138}
5139
4b32a2c9 5140static int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 5141{
5142 int ret;
5e037e74 5143 u32 oui_addr = 0, nic_addr = 0;
f5fc0f86
LC		 5144
5145 if (wl->mac80211_registered)
5146 return 0;
5147
6f8d6b20 5148 if (wl->nvs_len >= 12) {
bc765bf3
SL		 5149 /* NOTE: The wl->nvs->nvs element must be first, in
5150 * order to simplify the casting, we assume it is at
5151 * the beginning of the wl->nvs structure.
5152 */
5153 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6 5154
5e037e74
LC		 5155 oui_addr =
5156 (nvs_ptr[11] << 16) + (nvs_ptr[10] << 8) + nvs_ptr[6];
5157 nic_addr =
5158 (nvs_ptr[5] << 16) + (nvs_ptr[4] << 8) + nvs_ptr[3];
5159 }
5160
5161 /* if the MAC address is zeroed in the NVS derive from fuse */
5162 if (oui_addr == 0 && nic_addr == 0) {
5163 oui_addr = wl->fuse_oui_addr;
5164 /* fuse has the BD_ADDR, the WLAN addresses are the next two */
5165 nic_addr = wl->fuse_nic_addr + 1;
31d26ec6
AN		 5166 }
5167
f4afbed9 5168 wl12xx_derive_mac_addresses(wl, oui_addr, nic_addr);
f5fc0f86
LC		 5169
5170 ret = ieee80211_register_hw(wl->hw);
5171 if (ret < 0) {
5172 wl1271_error("unable to register mac80211 hw: %d", ret);
30c5dbd1 5173 goto out;
f5fc0f86
LC		 5174 }
5175
5176 wl->mac80211_registered = true;
5177
d60080ae
EP		 5178 wl1271_debugfs_init(wl);
5179
f5fc0f86
LC		 5180 wl1271_notice("loaded");
5181
30c5dbd1
LC		 5182out:
5183 return ret;
f5fc0f86
LC		 5184}
5185
4b32a2c9 5186static void wl1271_unregister_hw(struct wl1271 *wl)
3b56dd6a 5187{
3fcdab70 5188 if (wl->plt)
f3df1331 5189 wl1271_plt_stop(wl);
4ae3fa87 5190
3b56dd6a
TP		 5191 ieee80211_unregister_hw(wl->hw);
5192 wl->mac80211_registered = false;
5193
5194}
3b56dd6a 5195
bcab320b
EP		 5196static const struct ieee80211_iface_limit wlcore_iface_limits[] = {
5197 {
e7a6ba29 5198 .max = 3,
bcab320b
EP		 5199 .types = BIT(NL80211_IFTYPE_STATION),
5200 },
5201 {
5202 .max = 1,
5203 .types = BIT(NL80211_IFTYPE_AP) |
5204 BIT(NL80211_IFTYPE_P2P_GO) |
5205 BIT(NL80211_IFTYPE_P2P_CLIENT),
5206 },
5207};
5208
5209static const struct ieee80211_iface_combination
5210wlcore_iface_combinations[] = {
5211 {
5212 .num_different_channels = 1,
e7a6ba29 5213 .max_interfaces = 3,
bcab320b
EP		 5214 .limits = wlcore_iface_limits,
5215 .n_limits = ARRAY_SIZE(wlcore_iface_limits),
5216 },
5217};
5218
4b32a2c9 5219static int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 5220{
7a55724e
JO		 5221 static const u32 cipher_suites[] = {
5222 WLAN_CIPHER_SUITE_WEP40,
5223 WLAN_CIPHER_SUITE_WEP104,
5224 WLAN_CIPHER_SUITE_TKIP,
5225 WLAN_CIPHER_SUITE_CCMP,
5226 WL1271_CIPHER_SUITE_GEM,
5227 };
5228
2c0133a4
AN		 5229 /* The tx descriptor buffer */
5230 wl->hw->extra_tx_headroom = sizeof(struct wl1271_tx_hw_descr);
5231
5232 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
5233 wl->hw->extra_tx_headroom += WL1271_EXTRA_SPACE_TKIP;
f5fc0f86
LC		 5234
5235 /* unit us */
5236 /* FIXME: find a proper value */
5237 wl->hw->channel_change_time = 10000;
50c500ad 5238 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 5239
5240 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
0a34332f 5241 IEEE80211_HW_SUPPORTS_PS |
f1d63a59 5242 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
4695dc91 5243 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 5244 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 5245 IEEE80211_HW_CONNECTION_MONITOR |
25eaea30 5246 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 5247 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 5248 IEEE80211_HW_AP_LINK_PS |
5249 IEEE80211_HW_AMPDU_AGGREGATION |
79aba1ba
EP		 5250 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW |
5251 IEEE80211_HW_SCAN_WHILE_IDLE;
f5fc0f86 5252
7a55724e
JO		 5253 wl->hw->wiphy->cipher_suites = cipher_suites;
5254 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
5255
e0d8bbf0 5256 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 5257 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
5258 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 5259 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 5260 wl->hw->wiphy->max_sched_scan_ssids = 16;
5261 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 5262 /*
5263 * Maximum length of elements in scanning probe request templates
5264 * should be the maximum length possible for a template, without
5265 * the IEEE80211 header of the template
5266 */
c08e371a 5267 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
ea559b46 5268 sizeof(struct ieee80211_header);
a8aaaf53 5269
c08e371a 5270 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
c9e79a47
LC		 5271 sizeof(struct ieee80211_header);
5272
81ddbb5c
JB		 5273 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD |
5274 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
1ec23f7f 5275
4a31c11c
LC		 5276 /* make sure all our channels fit in the scanned_ch bitmask */
5277 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
5278 ARRAY_SIZE(wl1271_channels_5ghz) >
5279 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 5280 /*
5281 * We keep local copies of the band structs because we need to
5282 * modify them on a per-device basis.
5283 */
5284 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
5285 sizeof(wl1271_band_2ghz));
bfb92ca1
EP		 5286 memcpy(&wl->bands[IEEE80211_BAND_2GHZ].ht_cap,
5287 &wl->ht_cap[IEEE80211_BAND_2GHZ],
5288 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5289 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
5290 sizeof(wl1271_band_5ghz));
bfb92ca1
EP		 5291 memcpy(&wl->bands[IEEE80211_BAND_5GHZ].ht_cap,
5292 &wl->ht_cap[IEEE80211_BAND_5GHZ],
5293 sizeof(*wl->ht_cap));
a8aaaf53
LC		 5294
5295 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
5296 &wl->bands[IEEE80211_BAND_2GHZ];
5297 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
5298 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 5299
12bd8949 5300 wl->hw->queues = 4;
31627dc5 5301 wl->hw->max_rates = 1;
12bd8949 5302
b7417d93
JO		 5303 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
5304
9c1b190b
AN		 5305 /* the FW answers probe-requests in AP-mode */
5306 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
5307 wl->hw->wiphy->probe_resp_offload =
5308 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
5309 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
5310 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
5311
bcab320b
EP		 5312 /* allowed interface combinations */
5313 wl->hw->wiphy->iface_combinations = wlcore_iface_combinations;
5314 wl->hw->wiphy->n_iface_combinations =
5315 ARRAY_SIZE(wlcore_iface_combinations);
5316
a390e85c 5317 SET_IEEE80211_DEV(wl->hw, wl->dev);
f5fc0f86 5318
f84f7d78 5319 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 5320 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 5321
ba421f8f 5322 wl->hw->max_rx_aggregation_subframes = wl->conf.ht.rx_ba_win_size;
4c9cfa78 5323
f5fc0f86
LC		 5324 return 0;
5325}
5326
f5fc0f86 5327#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 5328
26a309c7 5329struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size)
f5fc0f86 5330{
f5fc0f86
LC		 5331 struct ieee80211_hw *hw;
5332 struct wl1271 *wl;
a8c0ddb5 5333 int i, j, ret;
1f37cbc9 5334 unsigned int order;
f5fc0f86 5335
c7ffb902 5336 BUILD_BUG_ON(AP_MAX_STATIONS > WL12XX_MAX_LINKS);
f80c2d12 5337
f5fc0f86
LC		 5338 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
5339 if (!hw) {
5340 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 5341 ret = -ENOMEM;
3b56dd6a
TP		 5342 goto err_hw_alloc;
5343 }
5344
f5fc0f86
LC		 5345 wl = hw->priv;
5346 memset(wl, 0, sizeof(*wl));
5347
96e0c683
AN		 5348 wl->priv = kzalloc(priv_size, GFP_KERNEL);
5349 if (!wl->priv) {
5350 wl1271_error("could not alloc wl priv");
5351 ret = -ENOMEM;
5352 goto err_priv_alloc;
5353 }
5354
87627214 5355 INIT_LIST_HEAD(&wl->wlvif_list);
01c09162 5356
f5fc0f86 5357 wl->hw = hw;
f5fc0f86 5358
a8c0ddb5 5359 for (i = 0; i < NUM_TX_QUEUES; i++)
c7ffb902 5360 for (j = 0; j < WL12XX_MAX_LINKS; j++)
a8c0ddb5
AN		 5361 skb_queue_head_init(&wl->links[j].tx_queue[i]);
5362
a620865e
IY		 5363 skb_queue_head_init(&wl->deferred_rx_queue);
5364 skb_queue_head_init(&wl->deferred_tx_queue);
5365
37b70a81 5366 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
a620865e 5367 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 5368 INIT_WORK(&wl->tx_work, wl1271_tx_work);
5369 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
5370 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
55df5afb 5371 INIT_DELAYED_WORK(&wl->tx_watchdog_work, wl12xx_tx_watchdog_work);
5f561f68
BM		 5372 INIT_DELAYED_WORK(&wl->connection_loss_work,
5373 wl1271_connection_loss_work);
77ddaa10 5374
92ef8960
EP		 5375 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
5376 if (!wl->freezable_wq) {
5377 ret = -ENOMEM;
5378 goto err_hw;
5379 }
5380
f5fc0f86 5381 wl->channel = WL1271_DEFAULT_CHANNEL;
f5fc0f86 5382 wl->rx_counter = 0;
f5fc0f86 5383 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 5384 wl->band = IEEE80211_BAND_2GHZ;
83d08d3f 5385 wl->channel_type = NL80211_CHAN_NO_HT;
830fb67b 5386 wl->flags = 0;
7fc3a864 5387 wl->sg_enabled = true;
66340e5b 5388 wl->sleep_auth = WL1271_PSM_ILLEGAL;
d717fd61 5389 wl->hw_pg_ver = -1;
b622d992
AN		 5390 wl->ap_ps_map = 0;
5391 wl->ap_fw_ps_map = 0;
606ea9fa 5392 wl->quirks = 0;
341b7cde 5393 wl->platform_quirks = 0;
33c2c06c 5394 wl->sched_scanning = false;
f4df1bd5 5395 wl->system_hlid = WL12XX_SYSTEM_HLID;
da03209e 5396 wl->active_sta_count = 0;
95dac04f
IY		 5397 wl->fwlog_size = 0;
5398 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 5399
f4df1bd5
EP		 5400 /* The system link is always allocated */
5401 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
5402
25eeb9e3 5403 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
72b0624f 5404 for (i = 0; i < wl->num_tx_desc; i++)
f5fc0f86
LC		 5405 wl->tx_frames[i] = NULL;
5406
5407 spin_lock_init(&wl->wl_lock);
5408
4cc53383 5409 wl->state = WLCORE_STATE_OFF;
3fcdab70 5410 wl->fw_type = WL12XX_FW_TYPE_NONE;
f5fc0f86 5411 mutex_init(&wl->mutex);
2c38849f 5412 mutex_init(&wl->flush_mutex);
6f8d6b20 5413 init_completion(&wl->nvs_loading_complete);
f5fc0f86 5414
26a309c7 5415 order = get_order(aggr_buf_size);
1f37cbc9
IY		 5416 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
5417 if (!wl->aggr_buf) {
5418 ret = -ENOMEM;
92ef8960 5419 goto err_wq;
1f37cbc9 5420 }
26a309c7 5421 wl->aggr_buf_size = aggr_buf_size;
1f37cbc9 5422
990f5de7
IY		 5423 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
5424 if (!wl->dummy_packet) {
5425 ret = -ENOMEM;
5426 goto err_aggr;
5427 }
5428
95dac04f
IY		 5429 /* Allocate one page for the FW log */
5430 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
5431 if (!wl->fwlog) {
5432 ret = -ENOMEM;
5433 goto err_dummy_packet;
5434 }
5435
fd492ed7 5436 wl->mbox = kmalloc(sizeof(*wl->mbox), GFP_KERNEL | GFP_DMA);
690142e9
MG		 5437 if (!wl->mbox) {
5438 ret = -ENOMEM;
5439 goto err_fwlog;
5440 }
5441
c332a4b8 5442 return hw;
a1dd8187 5443
690142e9
MG		 5444err_fwlog:
5445 free_page((unsigned long)wl->fwlog);
5446
990f5de7
IY		 5447err_dummy_packet:
5448 dev_kfree_skb(wl->dummy_packet);
5449
1f37cbc9
IY		 5450err_aggr:
5451 free_pages((unsigned long)wl->aggr_buf, order);
5452
92ef8960
EP		 5453err_wq:
5454 destroy_workqueue(wl->freezable_wq);
5455
a1dd8187 5456err_hw:
3b56dd6a 5457 wl1271_debugfs_exit(wl);
96e0c683
AN		 5458 kfree(wl->priv);
5459
5460err_priv_alloc:
3b56dd6a
TP		 5461 ieee80211_free_hw(hw);
5462
5463err_hw_alloc:
a1dd8187 5464
a1dd8187 5465 return ERR_PTR(ret);
c332a4b8 5466}
ffeb501c 5467EXPORT_SYMBOL_GPL(wlcore_alloc_hw);
c332a4b8 5468
ffeb501c 5469int wlcore_free_hw(struct wl1271 *wl)
c332a4b8 5470{
95dac04f
IY		 5471 /* Unblock any fwlog readers */
5472 mutex_lock(&wl->mutex);
5473 wl->fwlog_size = -1;
5474 wake_up_interruptible_all(&wl->fwlog_waitq);
5475 mutex_unlock(&wl->mutex);
5476
f79f890c 5477 device_remove_bin_file(wl->dev, &fwlog_attr);
6f07b72a 5478
f79f890c 5479 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
6f07b72a 5480
f79f890c 5481 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
95dac04f 5482 free_page((unsigned long)wl->fwlog);
990f5de7 5483 dev_kfree_skb(wl->dummy_packet);
26a309c7 5484 free_pages((unsigned long)wl->aggr_buf, get_order(wl->aggr_buf_size));
c332a4b8
TP		 5485
5486 wl1271_debugfs_exit(wl);
5487
c332a4b8
TP		 5488 vfree(wl->fw);
5489 wl->fw = NULL;
3fcdab70 5490 wl->fw_type = WL12XX_FW_TYPE_NONE;
c332a4b8
TP		 5491 kfree(wl->nvs);
5492 wl->nvs = NULL;
5493
0afd04e5 5494 kfree(wl->fw_status_1);
c332a4b8 5495 kfree(wl->tx_res_if);
92ef8960 5496 destroy_workqueue(wl->freezable_wq);
c332a4b8 5497
96e0c683 5498 kfree(wl->priv);
c332a4b8
TP		 5499 ieee80211_free_hw(wl->hw);
5500
5501 return 0;
5502}
ffeb501c 5503EXPORT_SYMBOL_GPL(wlcore_free_hw);
50b3eb4b 5504
a390e85c
FB		 5505static irqreturn_t wl12xx_hardirq(int irq, void *cookie)
5506{
5507 struct wl1271 *wl = cookie;
5508 unsigned long flags;
5509
5510 wl1271_debug(DEBUG_IRQ, "IRQ");
5511
5512 /* complete the ELP completion */
5513 spin_lock_irqsave(&wl->wl_lock, flags);
5514 set_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
5515 if (wl->elp_compl) {
5516 complete(wl->elp_compl);
5517 wl->elp_compl = NULL;
5518 }
5519
5520 if (test_bit(WL1271_FLAG_SUSPENDED, &wl->flags)) {
5521 /* don't enqueue a work right now. mark it as pending */
5522 set_bit(WL1271_FLAG_PENDING_WORK, &wl->flags);
5523 wl1271_debug(DEBUG_IRQ, "should not enqueue work");
5524 disable_irq_nosync(wl->irq);
5525 pm_wakeup_event(wl->dev, 0);
5526 spin_unlock_irqrestore(&wl->wl_lock, flags);
5527 return IRQ_HANDLED;
5528 }
5529 spin_unlock_irqrestore(&wl->wl_lock, flags);
5530
5531 return IRQ_WAKE_THREAD;
5532}
5533
6f8d6b20 5534static void wlcore_nvs_cb(const struct firmware *fw, void *context)
ce2a217c 5535{
6f8d6b20
IY		 5536 struct wl1271 *wl = context;
5537 struct platform_device *pdev = wl->pdev;
a390e85c 5538 struct wl12xx_platform_data *pdata = pdev->dev.platform_data;
a390e85c 5539 unsigned long irqflags;
ffeb501c 5540 int ret;
a390e85c 5541
6f8d6b20
IY		 5542 if (fw) {
5543 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
5544 if (!wl->nvs) {
5545 wl1271_error("Could not allocate nvs data");
5546 goto out;
5547 }
5548 wl->nvs_len = fw->size;
5549 } else {
5550 wl1271_debug(DEBUG_BOOT, "Could not get nvs file %s",
5551 WL12XX_NVS_NAME);
5552 wl->nvs = NULL;
5553 wl->nvs_len = 0;
a390e85c
FB		 5554 }
5555
3992eb2b
IY		 5556 ret = wl->ops->setup(wl);
5557 if (ret < 0)
6f8d6b20 5558 goto out_free_nvs;
3992eb2b 5559
72b0624f
AN		 5560 BUG_ON(wl->num_tx_desc > WLCORE_MAX_TX_DESCRIPTORS);
5561
e87288f0
LC		 5562 /* adjust some runtime configuration parameters */
5563 wlcore_adjust_conf(wl);
5564
a390e85c 5565 wl->irq = platform_get_irq(pdev, 0);
a390e85c
FB		 5566 wl->platform_quirks = pdata->platform_quirks;
5567 wl->set_power = pdata->set_power;
a390e85c
FB		 5568 wl->if_ops = pdata->ops;
5569
a390e85c
FB		 5570 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
5571 irqflags = IRQF_TRIGGER_RISING;
5572 else
5573 irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
5574
b5b45b3c 5575 ret = request_threaded_irq(wl->irq, wl12xx_hardirq, wlcore_irq,
a390e85c
FB		 5576 irqflags,
5577 pdev->name, wl);
5578 if (ret < 0) {
5579 wl1271_error("request_irq() failed: %d", ret);
6f8d6b20 5580 goto out_free_nvs;
a390e85c
FB		 5581 }
5582
dfb89c56 5583#ifdef CONFIG_PM
a390e85c
FB		 5584 ret = enable_irq_wake(wl->irq);
5585 if (!ret) {
5586 wl->irq_wake_enabled = true;
5587 device_init_wakeup(wl->dev, 1);
b95d7cef 5588 if (pdata->pwr_in_suspend) {
ffeb501c 5589 wl->hw->wiphy->wowlan.flags = WIPHY_WOWLAN_ANY;
b95d7cef
ES		 5590 wl->hw->wiphy->wowlan.n_patterns =
5591 WL1271_MAX_RX_FILTERS;
5592 wl->hw->wiphy->wowlan.pattern_min_len = 1;
5593 wl->hw->wiphy->wowlan.pattern_max_len =
5594 WL1271_RX_FILTER_MAX_PATTERN_SIZE;
5595 }
a390e85c 5596 }
dfb89c56 5597#endif
a390e85c
FB		 5598 disable_irq(wl->irq);
5599
4afc37a0
LC		 5600 ret = wl12xx_get_hw_info(wl);
5601 if (ret < 0) {
5602 wl1271_error("couldn't get hw info");
8b425e62 5603 goto out_irq;
4afc37a0
LC		 5604 }
5605
5606 ret = wl->ops->identify_chip(wl);
5607 if (ret < 0)
8b425e62 5608 goto out_irq;
4afc37a0 5609
a390e85c
FB		 5610 ret = wl1271_init_ieee80211(wl);
5611 if (ret)
5612 goto out_irq;
5613
5614 ret = wl1271_register_hw(wl);
5615 if (ret)
5616 goto out_irq;
5617
f79f890c
FB		 5618 /* Create sysfs file to control bt coex state */
5619 ret = device_create_file(wl->dev, &dev_attr_bt_coex_state);
5620 if (ret < 0) {
5621 wl1271_error("failed to create sysfs file bt_coex_state");
8b425e62 5622 goto out_unreg;
f79f890c
FB		 5623 }
5624
5625 /* Create sysfs file to get HW PG version */
5626 ret = device_create_file(wl->dev, &dev_attr_hw_pg_ver);
5627 if (ret < 0) {
5628 wl1271_error("failed to create sysfs file hw_pg_ver");
5629 goto out_bt_coex_state;
5630 }
5631
5632 /* Create sysfs file for the FW log */
5633 ret = device_create_bin_file(wl->dev, &fwlog_attr);
5634 if (ret < 0) {
5635 wl1271_error("failed to create sysfs file fwlog");
5636 goto out_hw_pg_ver;
5637 }
5638
6f8d6b20 5639 wl->initialized = true;
ffeb501c 5640 goto out;
a390e85c 5641
f79f890c
FB		 5642out_hw_pg_ver:
5643 device_remove_file(wl->dev, &dev_attr_hw_pg_ver);
5644
5645out_bt_coex_state:
5646 device_remove_file(wl->dev, &dev_attr_bt_coex_state);
5647
8b425e62
LC		 5648out_unreg:
5649 wl1271_unregister_hw(wl);
5650
a390e85c
FB		 5651out_irq:
5652 free_irq(wl->irq, wl);
5653
6f8d6b20
IY		 5654out_free_nvs:
5655 kfree(wl->nvs);
5656
a390e85c 5657out:
6f8d6b20
IY		 5658 release_firmware(fw);
5659 complete_all(&wl->nvs_loading_complete);
5660}
5661
5662int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev)
5663{
5664 int ret;
5665
5666 if (!wl->ops || !wl->ptable)
5667 return -EINVAL;
5668
5669 wl->dev = &pdev->dev;
5670 wl->pdev = pdev;
5671 platform_set_drvdata(pdev, wl);
5672
5673 ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG,
5674 WL12XX_NVS_NAME, &pdev->dev, GFP_KERNEL,
5675 wl, wlcore_nvs_cb);
5676 if (ret < 0) {
5677 wl1271_error("request_firmware_nowait failed: %d", ret);
5678 complete_all(&wl->nvs_loading_complete);
5679 }
5680
a390e85c 5681 return ret;
ce2a217c 5682}
b2ba99ff 5683EXPORT_SYMBOL_GPL(wlcore_probe);
ce2a217c 5684
b2ba99ff 5685int __devexit wlcore_remove(struct platform_device *pdev)
ce2a217c 5686{
a390e85c
FB		 5687 struct wl1271 *wl = platform_get_drvdata(pdev);
5688
6f8d6b20
IY		 5689 wait_for_completion(&wl->nvs_loading_complete);
5690 if (!wl->initialized)
5691 return 0;
5692
a390e85c
FB		 5693 if (wl->irq_wake_enabled) {
5694 device_init_wakeup(wl->dev, 0);
5695 disable_irq_wake(wl->irq);
5696 }
5697 wl1271_unregister_hw(wl);
5698 free_irq(wl->irq, wl);
ffeb501c 5699 wlcore_free_hw(wl);
a390e85c 5700
ce2a217c
FB		 5701 return 0;
5702}
b2ba99ff 5703EXPORT_SYMBOL_GPL(wlcore_remove);
ce2a217c 5704
491bbd6b 5705u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5706EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5707module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5708MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5709
95dac04f 5710module_param_named(fwlog, fwlog_param, charp, 0);
2c882fa4 5711MODULE_PARM_DESC(fwlog,
95dac04f
IY		 5712 "FW logger options: continuous, ondemand, dbgpins or disable");
5713
2a5bff09
EP		 5714module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5715MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5716
34785be5
AN		 5717module_param(no_recovery, bool, S_IRUSR | S_IWUSR);
5718MODULE_PARM_DESC(no_recovery, "Prevent HW recovery. FW will remain stuck.");
5719
50b3eb4b 5720MODULE_LICENSE("GPL");
b1a48cab 5721MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5722MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
0635ad45 5723MODULE_FIRMWARE(WL12XX_NVS_NAME);
kernel source for telekom puls (alcatel/mediatek)