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wlcore: make wlcore_cmd_send_failsafe() static
[deliverable/linux.git] / drivers / net / wireless / ti / wlcore / cmd.c
1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009-2010 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/spi/spi.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ieee80211.h>
29 #include <linux/slab.h>
30
31 #include "wlcore.h"
32 #include "debug.h"
33 #include "io.h"
34 #include "acx.h"
35 #include "wl12xx_80211.h"
36 #include "cmd.h"
37 #include "event.h"
38 #include "tx.h"
39 #include "hw_ops.h"
40
41 #define WL1271_CMD_FAST_POLL_COUNT 50
42 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20
43
44 /*
45 * send command to firmware
46 *
47 * @wl: wl struct
48 * @id: command id
49 * @buf: buffer containing the command, must work with dma
50 * @len: length of the buffer
51 * return the cmd status code on success.
52 */
53 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
54 size_t len, size_t res_len)
55 {
56 struct wl1271_cmd_header *cmd;
57 unsigned long timeout;
58 u32 intr;
59 int ret;
60 u16 status;
61 u16 poll_count = 0;
62
63 if (unlikely(wl->state == WLCORE_STATE_RESTARTING &&
64 id != CMD_STOP_FWLOGGER))
65 return -EIO;
66
67 if (WARN_ON_ONCE(len < sizeof(*cmd)))
68 return -EIO;
69
70 cmd = buf;
71 cmd->id = cpu_to_le16(id);
72 cmd->status = 0;
73
74 WARN_ON(len % 4 != 0);
75 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
76
77 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
78 if (ret < 0)
79 return ret;
80
81 /*
82 * TODO: we just need this because one bit is in a different
83 * place. Is there any better way?
84 */
85 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
86 if (ret < 0)
87 return ret;
88
89 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
90
91 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
92 if (ret < 0)
93 return ret;
94
95 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
96 if (time_after(jiffies, timeout)) {
97 wl1271_error("command complete timeout");
98 return -ETIMEDOUT;
99 }
100
101 poll_count++;
102 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
103 udelay(10);
104 else
105 msleep(1);
106
107 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
108 if (ret < 0)
109 return ret;
110 }
111
112 /* read back the status code of the command */
113 if (res_len == 0)
114 res_len = sizeof(struct wl1271_cmd_header);
115
116 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
117 if (ret < 0)
118 return ret;
119
120 status = le16_to_cpu(cmd->status);
121
122 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
123 WL1271_ACX_INTR_CMD_COMPLETE);
124 if (ret < 0)
125 return ret;
126
127 return status;
128 }
129
130 /*
131 * send command to fw and return cmd status on success
132 * valid_rets contains a bitmap of allowed error codes
133 */
134 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf,
135 size_t len, size_t res_len,
136 unsigned long valid_rets)
137 {
138 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
139
140 if (ret < 0)
141 goto fail;
142
143 /* success is always a valid status */
144 valid_rets |= BIT(CMD_STATUS_SUCCESS);
145
146 if (ret >= MAX_COMMAND_STATUS ||
147 !test_bit(ret, &valid_rets)) {
148 wl1271_error("command execute failure %d", ret);
149 ret = -EIO;
150 goto fail;
151 }
152 return ret;
153 fail:
154 wl12xx_queue_recovery_work(wl);
155 return ret;
156 }
157
158 /*
159 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
160 * return 0 on success.
161 */
162 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
163 size_t res_len)
164 {
165 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
166
167 if (ret < 0)
168 return ret;
169 return 0;
170 }
171 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
172
173 /*
174 * Poll the mailbox event field until any of the bits in the mask is set or a
175 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
176 */
177 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
178 u32 mask, bool *timeout)
179 {
180 u32 *events_vector;
181 u32 event;
182 unsigned long timeout_time;
183 u16 poll_count = 0;
184 int ret = 0;
185
186 *timeout = false;
187
188 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
189 if (!events_vector)
190 return -ENOMEM;
191
192 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
193
194 do {
195 if (time_after(jiffies, timeout_time)) {
196 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
197 (int)mask);
198 *timeout = true;
199 goto out;
200 }
201
202 poll_count++;
203 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
204 usleep_range(50, 51);
205 else
206 usleep_range(1000, 5000);
207
208 /* read from both event fields */
209 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
210 sizeof(*events_vector), false);
211 if (ret < 0)
212 goto out;
213
214 event = *events_vector & mask;
215
216 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
217 sizeof(*events_vector), false);
218 if (ret < 0)
219 goto out;
220
221 event |= *events_vector & mask;
222 } while (!event);
223
224 out:
225 kfree(events_vector);
226 return ret;
227 }
228 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
229
230 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
231 u8 *role_id)
232 {
233 struct wl12xx_cmd_role_enable *cmd;
234 int ret;
235
236 wl1271_debug(DEBUG_CMD, "cmd role enable");
237
238 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
239 return -EBUSY;
240
241 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
242 if (!cmd) {
243 ret = -ENOMEM;
244 goto out;
245 }
246
247 /* get role id */
248 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
249 if (cmd->role_id >= WL12XX_MAX_ROLES) {
250 ret = -EBUSY;
251 goto out_free;
252 }
253
254 memcpy(cmd->mac_address, addr, ETH_ALEN);
255 cmd->role_type = role_type;
256
257 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
258 if (ret < 0) {
259 wl1271_error("failed to initiate cmd role enable");
260 goto out_free;
261 }
262
263 __set_bit(cmd->role_id, wl->roles_map);
264 *role_id = cmd->role_id;
265
266 out_free:
267 kfree(cmd);
268
269 out:
270 return ret;
271 }
272
273 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
274 {
275 struct wl12xx_cmd_role_disable *cmd;
276 int ret;
277
278 wl1271_debug(DEBUG_CMD, "cmd role disable");
279
280 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
281 return -ENOENT;
282
283 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
284 if (!cmd) {
285 ret = -ENOMEM;
286 goto out;
287 }
288 cmd->role_id = *role_id;
289
290 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
291 if (ret < 0) {
292 wl1271_error("failed to initiate cmd role disable");
293 goto out_free;
294 }
295
296 __clear_bit(*role_id, wl->roles_map);
297 *role_id = WL12XX_INVALID_ROLE_ID;
298
299 out_free:
300 kfree(cmd);
301
302 out:
303 return ret;
304 }
305
306 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
307 {
308 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
309 wl->session_ids[hlid] = 0;
310
311 wl->session_ids[hlid]++;
312
313 return wl->session_ids[hlid];
314 }
315
316 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
317 {
318 unsigned long flags;
319 u8 link = find_first_zero_bit(wl->links_map, wl->num_links);
320 if (link >= wl->num_links)
321 return -EBUSY;
322
323 wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
324
325 /* these bits are used by op_tx */
326 spin_lock_irqsave(&wl->wl_lock, flags);
327 __set_bit(link, wl->links_map);
328 __set_bit(link, wlvif->links_map);
329 spin_unlock_irqrestore(&wl->wl_lock, flags);
330
331 /*
332 * take the last "freed packets" value from the current FW status.
333 * on recovery, we might not have fw_status yet, and
334 * tx_lnk_free_pkts will be NULL. check for it.
335 */
336 if (wl->fw_status->counters.tx_lnk_free_pkts)
337 wl->links[link].prev_freed_pkts =
338 wl->fw_status->counters.tx_lnk_free_pkts[link];
339 wl->links[link].wlvif = wlvif;
340
341 /*
342 * Take saved value for total freed packets from wlvif, in case this is
343 * recovery/resume
344 */
345 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
346 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
347
348 *hlid = link;
349
350 wl->active_link_count++;
351 return 0;
352 }
353
354 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
355 {
356 unsigned long flags;
357
358 if (*hlid == WL12XX_INVALID_LINK_ID)
359 return;
360
361 /* these bits are used by op_tx */
362 spin_lock_irqsave(&wl->wl_lock, flags);
363 __clear_bit(*hlid, wl->links_map);
364 __clear_bit(*hlid, wlvif->links_map);
365 spin_unlock_irqrestore(&wl->wl_lock, flags);
366
367 wl->links[*hlid].allocated_pkts = 0;
368 wl->links[*hlid].prev_freed_pkts = 0;
369 wl->links[*hlid].ba_bitmap = 0;
370 memset(wl->links[*hlid].addr, 0, ETH_ALEN);
371
372 /*
373 * At this point op_tx() will not add more packets to the queues. We
374 * can purge them.
375 */
376 wl1271_tx_reset_link_queues(wl, *hlid);
377 wl->links[*hlid].wlvif = NULL;
378
379 if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
380 *hlid == wlvif->ap.bcast_hlid) {
381 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
382 /*
383 * save the total freed packets in the wlvif, in case this is
384 * recovery or suspend
385 */
386 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
387
388 /*
389 * increment the initial seq number on recovery to account for
390 * transmitted packets that we haven't yet got in the FW status
391 */
392 if (wlvif->encryption_type == KEY_GEM)
393 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
394
395 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
396 wlvif->total_freed_pkts += sqn_padding;
397 }
398
399 wl->links[*hlid].total_freed_pkts = 0;
400
401 *hlid = WL12XX_INVALID_LINK_ID;
402 wl->active_link_count--;
403 WARN_ON_ONCE(wl->active_link_count < 0);
404 }
405
406 static u8 wlcore_get_native_channel_type(u8 nl_channel_type)
407 {
408 switch (nl_channel_type) {
409 case NL80211_CHAN_NO_HT:
410 return WLCORE_CHAN_NO_HT;
411 case NL80211_CHAN_HT20:
412 return WLCORE_CHAN_HT20;
413 case NL80211_CHAN_HT40MINUS:
414 return WLCORE_CHAN_HT40MINUS;
415 case NL80211_CHAN_HT40PLUS:
416 return WLCORE_CHAN_HT40PLUS;
417 default:
418 WARN_ON(1);
419 return WLCORE_CHAN_NO_HT;
420 }
421 }
422
423 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
424 struct wl12xx_vif *wlvif,
425 enum ieee80211_band band,
426 int channel)
427 {
428 struct wl12xx_cmd_role_start *cmd;
429 int ret;
430
431 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
432 if (!cmd) {
433 ret = -ENOMEM;
434 goto out;
435 }
436
437 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
438
439 cmd->role_id = wlvif->dev_role_id;
440 if (band == IEEE80211_BAND_5GHZ)
441 cmd->band = WLCORE_BAND_5GHZ;
442 cmd->channel = channel;
443
444 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
445 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
446 if (ret)
447 goto out_free;
448 }
449 cmd->device.hlid = wlvif->dev_hlid;
450 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
451
452 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
453 cmd->role_id, cmd->device.hlid, cmd->device.session);
454
455 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
456 if (ret < 0) {
457 wl1271_error("failed to initiate cmd role enable");
458 goto err_hlid;
459 }
460
461 goto out_free;
462
463 err_hlid:
464 /* clear links on error */
465 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
466
467 out_free:
468 kfree(cmd);
469
470 out:
471 return ret;
472 }
473
474 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
475 struct wl12xx_vif *wlvif)
476 {
477 struct wl12xx_cmd_role_stop *cmd;
478 int ret;
479
480 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
481 return -EINVAL;
482
483 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
484 if (!cmd) {
485 ret = -ENOMEM;
486 goto out;
487 }
488
489 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
490
491 cmd->role_id = wlvif->dev_role_id;
492 cmd->disc_type = DISCONNECT_IMMEDIATE;
493 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
494
495 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
496 if (ret < 0) {
497 wl1271_error("failed to initiate cmd role stop");
498 goto out_free;
499 }
500
501 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
502
503 out_free:
504 kfree(cmd);
505
506 out:
507 return ret;
508 }
509
510 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
511 {
512 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
513 struct wl12xx_cmd_role_start *cmd;
514 u32 supported_rates;
515 int ret;
516
517 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
518 if (!cmd) {
519 ret = -ENOMEM;
520 goto out;
521 }
522
523 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
524
525 cmd->role_id = wlvif->role_id;
526 if (wlvif->band == IEEE80211_BAND_5GHZ)
527 cmd->band = WLCORE_BAND_5GHZ;
528 cmd->channel = wlvif->channel;
529 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
530 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
531 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
532 cmd->sta.ssid_len = wlvif->ssid_len;
533 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
534 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
535
536 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
537 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
538 if (wlvif->p2p)
539 supported_rates &= ~CONF_TX_CCK_RATES;
540
541 cmd->sta.local_rates = cpu_to_le32(supported_rates);
542
543 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
544
545 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
546 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
547 if (ret)
548 goto out_free;
549 }
550 cmd->sta.hlid = wlvif->sta.hlid;
551 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
552 /*
553 * We don't have the correct remote rates in this stage. The
554 * rates will be reconfigured later, after association, if the
555 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
556 * we can do, so use all supported_rates here.
557 */
558 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
559
560 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
561 "basic_rate_set: 0x%x, remote_rates: 0x%x",
562 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
563 wlvif->basic_rate_set, wlvif->rate_set);
564
565 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
566 if (ret < 0) {
567 wl1271_error("failed to initiate cmd role start sta");
568 goto err_hlid;
569 }
570
571 wlvif->sta.role_chan_type = wlvif->channel_type;
572 goto out_free;
573
574 err_hlid:
575 /* clear links on error. */
576 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
577
578 out_free:
579 kfree(cmd);
580
581 out:
582 return ret;
583 }
584
585 /* use this function to stop ibss as well */
586 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
587 {
588 struct wl12xx_cmd_role_stop *cmd;
589 int ret;
590
591 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
592 return -EINVAL;
593
594 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
595 if (!cmd) {
596 ret = -ENOMEM;
597 goto out;
598 }
599
600 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
601
602 cmd->role_id = wlvif->role_id;
603 cmd->disc_type = DISCONNECT_IMMEDIATE;
604 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
605
606 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
607 if (ret < 0) {
608 wl1271_error("failed to initiate cmd role stop sta");
609 goto out_free;
610 }
611
612 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
613
614 out_free:
615 kfree(cmd);
616
617 out:
618 return ret;
619 }
620
621 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
622 {
623 struct wl12xx_cmd_role_start *cmd;
624 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
625 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
626 u32 supported_rates;
627 int ret;
628
629 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
630
631 /* trying to use hidden SSID with an old hostapd version */
632 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
633 wl1271_error("got a null SSID from beacon/bss");
634 ret = -EINVAL;
635 goto out;
636 }
637
638 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
639 if (!cmd) {
640 ret = -ENOMEM;
641 goto out;
642 }
643
644 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
645 if (ret < 0)
646 goto out_free;
647
648 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
649 if (ret < 0)
650 goto out_free_global;
651
652 /* use the previous security seq, if this is a recovery/resume */
653 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
654 wlvif->total_freed_pkts;
655
656 cmd->role_id = wlvif->role_id;
657 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
658 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
659 cmd->ap.global_hlid = wlvif->ap.global_hlid;
660 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
661 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
662 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
663 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
664 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
665 cmd->ap.dtim_interval = bss_conf->dtim_period;
666 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
667 /* FIXME: Change when adding DFS */
668 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
669 cmd->ap.wmm = wlvif->wmm_enabled;
670 cmd->channel = wlvif->channel;
671 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
672
673 if (!bss_conf->hidden_ssid) {
674 /* take the SSID from the beacon for backward compatibility */
675 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
676 cmd->ap.ssid_len = wlvif->ssid_len;
677 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
678 } else {
679 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
680 cmd->ap.ssid_len = bss_conf->ssid_len;
681 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
682 }
683
684 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
685 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
686 if (wlvif->p2p)
687 supported_rates &= ~CONF_TX_CCK_RATES;
688
689 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
690 supported_rates);
691
692 cmd->ap.local_rates = cpu_to_le32(supported_rates);
693
694 switch (wlvif->band) {
695 case IEEE80211_BAND_2GHZ:
696 cmd->band = WLCORE_BAND_2_4GHZ;
697 break;
698 case IEEE80211_BAND_5GHZ:
699 cmd->band = WLCORE_BAND_5GHZ;
700 break;
701 default:
702 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
703 cmd->band = WLCORE_BAND_2_4GHZ;
704 break;
705 }
706
707 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
708 if (ret < 0) {
709 wl1271_error("failed to initiate cmd role start ap");
710 goto out_free_bcast;
711 }
712
713 goto out_free;
714
715 out_free_bcast:
716 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
717
718 out_free_global:
719 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
720
721 out_free:
722 kfree(cmd);
723
724 out:
725 return ret;
726 }
727
728 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
729 {
730 struct wl12xx_cmd_role_stop *cmd;
731 int ret;
732
733 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
734 if (!cmd) {
735 ret = -ENOMEM;
736 goto out;
737 }
738
739 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
740
741 cmd->role_id = wlvif->role_id;
742
743 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
744 if (ret < 0) {
745 wl1271_error("failed to initiate cmd role stop ap");
746 goto out_free;
747 }
748
749 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
750 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
751
752 out_free:
753 kfree(cmd);
754
755 out:
756 return ret;
757 }
758
759 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
760 {
761 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
762 struct wl12xx_cmd_role_start *cmd;
763 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
764 int ret;
765
766 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
767 if (!cmd) {
768 ret = -ENOMEM;
769 goto out;
770 }
771
772 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
773
774 cmd->role_id = wlvif->role_id;
775 if (wlvif->band == IEEE80211_BAND_5GHZ)
776 cmd->band = WLCORE_BAND_5GHZ;
777 cmd->channel = wlvif->channel;
778 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
779 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
780 cmd->ibss.dtim_interval = bss_conf->dtim_period;
781 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
782 cmd->ibss.ssid_len = wlvif->ssid_len;
783 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
784 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
785 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
786
787 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
788 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
789 if (ret)
790 goto out_free;
791 }
792 cmd->ibss.hlid = wlvif->sta.hlid;
793 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
794
795 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
796 "basic_rate_set: 0x%x, remote_rates: 0x%x",
797 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
798 wlvif->basic_rate_set, wlvif->rate_set);
799
800 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
801 vif->bss_conf.bssid);
802
803 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
804 if (ret < 0) {
805 wl1271_error("failed to initiate cmd role enable");
806 goto err_hlid;
807 }
808
809 goto out_free;
810
811 err_hlid:
812 /* clear links on error. */
813 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
814
815 out_free:
816 kfree(cmd);
817
818 out:
819 return ret;
820 }
821
822
823 /**
824 * send test command to firmware
825 *
826 * @wl: wl struct
827 * @buf: buffer containing the command, with all headers, must work with dma
828 * @len: length of the buffer
829 * @answer: is answer needed
830 */
831 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
832 {
833 int ret;
834 size_t res_len = 0;
835
836 wl1271_debug(DEBUG_CMD, "cmd test");
837
838 if (answer)
839 res_len = buf_len;
840
841 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
842
843 if (ret < 0) {
844 wl1271_warning("TEST command failed");
845 return ret;
846 }
847
848 return ret;
849 }
850 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
851
852 /**
853 * read acx from firmware
854 *
855 * @wl: wl struct
856 * @id: acx id
857 * @buf: buffer for the response, including all headers, must work with dma
858 * @len: length of buf
859 */
860 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
861 size_t cmd_len, size_t res_len)
862 {
863 struct acx_header *acx = buf;
864 int ret;
865
866 wl1271_debug(DEBUG_CMD, "cmd interrogate");
867
868 acx->id = cpu_to_le16(id);
869
870 /* response payload length, does not include any headers */
871 acx->len = cpu_to_le16(res_len - sizeof(*acx));
872
873 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
874 if (ret < 0)
875 wl1271_error("INTERROGATE command failed");
876
877 return ret;
878 }
879
880 /**
881 * write acx value to firmware
882 *
883 * @wl: wl struct
884 * @id: acx id
885 * @buf: buffer containing acx, including all headers, must work with dma
886 * @len: length of buf
887 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
888 * return the cmd status on success.
889 */
890 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
891 size_t len, unsigned long valid_rets)
892 {
893 struct acx_header *acx = buf;
894 int ret;
895
896 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
897
898 if (WARN_ON_ONCE(len < sizeof(*acx)))
899 return -EIO;
900
901 acx->id = cpu_to_le16(id);
902
903 /* payload length, does not include any headers */
904 acx->len = cpu_to_le16(len - sizeof(*acx));
905
906 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
907 valid_rets);
908 if (ret < 0) {
909 wl1271_warning("CONFIGURE command NOK");
910 return ret;
911 }
912
913 return ret;
914 }
915
916 /*
917 * wrapper for wlcore_cmd_configure that accepts only success status.
918 * return 0 on success
919 */
920 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
921 {
922 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
923
924 if (ret < 0)
925 return ret;
926 return 0;
927 }
928 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
929
930 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
931 {
932 struct cmd_enabledisable_path *cmd;
933 int ret;
934 u16 cmd_rx, cmd_tx;
935
936 wl1271_debug(DEBUG_CMD, "cmd data path");
937
938 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
939 if (!cmd) {
940 ret = -ENOMEM;
941 goto out;
942 }
943
944 /* the channel here is only used for calibration, so hardcoded to 1 */
945 cmd->channel = 1;
946
947 if (enable) {
948 cmd_rx = CMD_ENABLE_RX;
949 cmd_tx = CMD_ENABLE_TX;
950 } else {
951 cmd_rx = CMD_DISABLE_RX;
952 cmd_tx = CMD_DISABLE_TX;
953 }
954
955 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
956 if (ret < 0) {
957 wl1271_error("rx %s cmd for channel %d failed",
958 enable ? "start" : "stop", cmd->channel);
959 goto out;
960 }
961
962 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
963 enable ? "start" : "stop", cmd->channel);
964
965 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
966 if (ret < 0) {
967 wl1271_error("tx %s cmd for channel %d failed",
968 enable ? "start" : "stop", cmd->channel);
969 goto out;
970 }
971
972 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
973 enable ? "start" : "stop", cmd->channel);
974
975 out:
976 kfree(cmd);
977 return ret;
978 }
979 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
980
981 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
982 u8 ps_mode, u16 auto_ps_timeout)
983 {
984 struct wl1271_cmd_ps_params *ps_params = NULL;
985 int ret = 0;
986
987 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
988
989 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
990 if (!ps_params) {
991 ret = -ENOMEM;
992 goto out;
993 }
994
995 ps_params->role_id = wlvif->role_id;
996 ps_params->ps_mode = ps_mode;
997 ps_params->auto_ps_timeout = auto_ps_timeout;
998
999 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1000 sizeof(*ps_params), 0);
1001 if (ret < 0) {
1002 wl1271_error("cmd set_ps_mode failed");
1003 goto out;
1004 }
1005
1006 out:
1007 kfree(ps_params);
1008 return ret;
1009 }
1010
1011 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1012 u16 template_id, void *buf, size_t buf_len,
1013 int index, u32 rates)
1014 {
1015 struct wl1271_cmd_template_set *cmd;
1016 int ret = 0;
1017
1018 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1019 template_id, role_id);
1020
1021 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1022 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1023
1024 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1025 if (!cmd) {
1026 ret = -ENOMEM;
1027 goto out;
1028 }
1029
1030 /* during initialization wlvif is NULL */
1031 cmd->role_id = role_id;
1032 cmd->len = cpu_to_le16(buf_len);
1033 cmd->template_type = template_id;
1034 cmd->enabled_rates = cpu_to_le32(rates);
1035 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1036 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1037 cmd->index = index;
1038
1039 if (buf)
1040 memcpy(cmd->template_data, buf, buf_len);
1041
1042 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1043 if (ret < 0) {
1044 wl1271_warning("cmd set_template failed: %d", ret);
1045 goto out_free;
1046 }
1047
1048 out_free:
1049 kfree(cmd);
1050
1051 out:
1052 return ret;
1053 }
1054
1055 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1056 {
1057 struct sk_buff *skb = NULL;
1058 int size;
1059 void *ptr;
1060 int ret = -ENOMEM;
1061
1062
1063 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1064 size = sizeof(struct wl12xx_null_data_template);
1065 ptr = NULL;
1066 } else {
1067 skb = ieee80211_nullfunc_get(wl->hw,
1068 wl12xx_wlvif_to_vif(wlvif));
1069 if (!skb)
1070 goto out;
1071 size = skb->len;
1072 ptr = skb->data;
1073 }
1074
1075 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1076 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1077 wlvif->basic_rate);
1078
1079 out:
1080 dev_kfree_skb(skb);
1081 if (ret)
1082 wl1271_warning("cmd buld null data failed %d", ret);
1083
1084 return ret;
1085
1086 }
1087
1088 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1089 struct wl12xx_vif *wlvif)
1090 {
1091 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1092 struct sk_buff *skb = NULL;
1093 int ret = -ENOMEM;
1094
1095 skb = ieee80211_nullfunc_get(wl->hw, vif);
1096 if (!skb)
1097 goto out;
1098
1099 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1100 skb->data, skb->len,
1101 wlvif->sta.klv_template_id,
1102 wlvif->basic_rate);
1103
1104 out:
1105 dev_kfree_skb(skb);
1106 if (ret)
1107 wl1271_warning("cmd build klv null data failed %d", ret);
1108
1109 return ret;
1110
1111 }
1112
1113 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1114 u16 aid)
1115 {
1116 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1117 struct sk_buff *skb;
1118 int ret = 0;
1119
1120 skb = ieee80211_pspoll_get(wl->hw, vif);
1121 if (!skb)
1122 goto out;
1123
1124 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1125 CMD_TEMPL_PS_POLL, skb->data,
1126 skb->len, 0, wlvif->basic_rate_set);
1127
1128 out:
1129 dev_kfree_skb(skb);
1130 return ret;
1131 }
1132
1133 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1134 u8 role_id, u8 band,
1135 const u8 *ssid, size_t ssid_len,
1136 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1137 size_t ie1_len, bool sched_scan)
1138 {
1139 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1140 struct sk_buff *skb;
1141 int ret;
1142 u32 rate;
1143 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1144 u16 template_id_5 = wl->scan_templ_id_5;
1145
1146 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1147
1148 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
1149 ie0_len + ie1_len);
1150 if (!skb) {
1151 ret = -ENOMEM;
1152 goto out;
1153 }
1154 if (ie0_len)
1155 memcpy(skb_put(skb, ie0_len), ie0, ie0_len);
1156 if (ie1_len)
1157 memcpy(skb_put(skb, ie1_len), ie1, ie1_len);
1158
1159 if (sched_scan &&
1160 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1161 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1162 template_id_5 = wl->sched_scan_templ_id_5;
1163 }
1164
1165 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1166 if (band == IEEE80211_BAND_2GHZ)
1167 ret = wl1271_cmd_template_set(wl, role_id,
1168 template_id_2_4,
1169 skb->data, skb->len, 0, rate);
1170 else
1171 ret = wl1271_cmd_template_set(wl, role_id,
1172 template_id_5,
1173 skb->data, skb->len, 0, rate);
1174
1175 out:
1176 dev_kfree_skb(skb);
1177 return ret;
1178 }
1179 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1180
1181 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1182 struct wl12xx_vif *wlvif,
1183 struct sk_buff *skb)
1184 {
1185 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1186 int ret;
1187 u32 rate;
1188
1189 if (!skb)
1190 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1191 if (!skb)
1192 goto out;
1193
1194 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1195
1196 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1197 if (wlvif->band == IEEE80211_BAND_2GHZ)
1198 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1199 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1200 skb->data, skb->len, 0, rate);
1201 else
1202 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1203 CMD_TEMPL_CFG_PROBE_REQ_5,
1204 skb->data, skb->len, 0, rate);
1205
1206 if (ret < 0)
1207 wl1271_error("Unable to set ap probe request template.");
1208
1209 out:
1210 return skb;
1211 }
1212
1213 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1214 {
1215 int ret, extra = 0;
1216 u16 fc;
1217 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1218 struct sk_buff *skb;
1219 struct wl12xx_arp_rsp_template *tmpl;
1220 struct ieee80211_hdr_3addr *hdr;
1221 struct arphdr *arp_hdr;
1222
1223 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1224 WL1271_EXTRA_SPACE_MAX);
1225 if (!skb) {
1226 wl1271_error("failed to allocate buffer for arp rsp template");
1227 return -ENOMEM;
1228 }
1229
1230 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1231
1232 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl));
1233 memset(tmpl, 0, sizeof(*tmpl));
1234
1235 /* llc layer */
1236 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1237 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1238
1239 /* arp header */
1240 arp_hdr = &tmpl->arp_hdr;
1241 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1242 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1243 arp_hdr->ar_hln = ETH_ALEN;
1244 arp_hdr->ar_pln = 4;
1245 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1246
1247 /* arp payload */
1248 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1249 tmpl->sender_ip = wlvif->ip_addr;
1250
1251 /* encryption space */
1252 switch (wlvif->encryption_type) {
1253 case KEY_TKIP:
1254 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1255 extra = WL1271_EXTRA_SPACE_TKIP;
1256 break;
1257 case KEY_AES:
1258 extra = WL1271_EXTRA_SPACE_AES;
1259 break;
1260 case KEY_NONE:
1261 case KEY_WEP:
1262 case KEY_GEM:
1263 extra = 0;
1264 break;
1265 default:
1266 wl1271_warning("Unknown encryption type: %d",
1267 wlvif->encryption_type);
1268 ret = -EINVAL;
1269 goto out;
1270 }
1271
1272 if (extra) {
1273 u8 *space = skb_push(skb, extra);
1274 memset(space, 0, extra);
1275 }
1276
1277 /* QoS header - BE */
1278 if (wlvif->sta.qos)
1279 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1280
1281 /* mac80211 header */
1282 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
1283 memset(hdr, 0, sizeof(*hdr));
1284 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1285 if (wlvif->sta.qos)
1286 fc |= IEEE80211_STYPE_QOS_DATA;
1287 else
1288 fc |= IEEE80211_STYPE_DATA;
1289 if (wlvif->encryption_type != KEY_NONE)
1290 fc |= IEEE80211_FCTL_PROTECTED;
1291
1292 hdr->frame_control = cpu_to_le16(fc);
1293 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1294 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1295 memset(hdr->addr3, 0xff, ETH_ALEN);
1296
1297 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1298 skb->data, skb->len, 0,
1299 wlvif->basic_rate);
1300 out:
1301 dev_kfree_skb(skb);
1302 return ret;
1303 }
1304
1305 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1306 {
1307 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1308 struct ieee80211_qos_hdr template;
1309
1310 memset(&template, 0, sizeof(template));
1311
1312 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1313 memcpy(template.addr2, vif->addr, ETH_ALEN);
1314 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1315
1316 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1317 IEEE80211_STYPE_QOS_NULLFUNC |
1318 IEEE80211_FCTL_TODS);
1319
1320 /* FIXME: not sure what priority to use here */
1321 template.qos_ctrl = cpu_to_le16(0);
1322
1323 return wl1271_cmd_template_set(wl, wlvif->role_id,
1324 CMD_TEMPL_QOS_NULL_DATA, &template,
1325 sizeof(template), 0,
1326 wlvif->basic_rate);
1327 }
1328
1329 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1330 {
1331 struct wl1271_cmd_set_keys *cmd;
1332 int ret = 0;
1333
1334 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1335
1336 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1337 if (!cmd) {
1338 ret = -ENOMEM;
1339 goto out;
1340 }
1341
1342 cmd->hlid = hlid;
1343 cmd->key_id = id;
1344 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1345 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1346 cmd->key_type = KEY_WEP;
1347
1348 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1349 if (ret < 0) {
1350 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1351 goto out;
1352 }
1353
1354 out:
1355 kfree(cmd);
1356
1357 return ret;
1358 }
1359
1360 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1361 u16 action, u8 id, u8 key_type,
1362 u8 key_size, const u8 *key, const u8 *addr,
1363 u32 tx_seq_32, u16 tx_seq_16)
1364 {
1365 struct wl1271_cmd_set_keys *cmd;
1366 int ret = 0;
1367
1368 /* hlid might have already been deleted */
1369 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1370 return 0;
1371
1372 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1373 if (!cmd) {
1374 ret = -ENOMEM;
1375 goto out;
1376 }
1377
1378 cmd->hlid = wlvif->sta.hlid;
1379
1380 if (key_type == KEY_WEP)
1381 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1382 else if (is_broadcast_ether_addr(addr))
1383 cmd->lid_key_type = BROADCAST_LID_TYPE;
1384 else
1385 cmd->lid_key_type = UNICAST_LID_TYPE;
1386
1387 cmd->key_action = cpu_to_le16(action);
1388 cmd->key_size = key_size;
1389 cmd->key_type = key_type;
1390
1391 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1392 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1393
1394 cmd->key_id = id;
1395
1396 if (key_type == KEY_TKIP) {
1397 /*
1398 * We get the key in the following form:
1399 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1400 * but the target is expecting:
1401 * TKIP - RX MIC - TX MIC
1402 */
1403 memcpy(cmd->key, key, 16);
1404 memcpy(cmd->key + 16, key + 24, 8);
1405 memcpy(cmd->key + 24, key + 16, 8);
1406
1407 } else {
1408 memcpy(cmd->key, key, key_size);
1409 }
1410
1411 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1412
1413 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1414 if (ret < 0) {
1415 wl1271_warning("could not set keys");
1416 goto out;
1417 }
1418
1419 out:
1420 kfree(cmd);
1421
1422 return ret;
1423 }
1424
1425 /*
1426 * TODO: merge with sta/ibss into 1 set_key function.
1427 * note there are slight diffs
1428 */
1429 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1430 u16 action, u8 id, u8 key_type,
1431 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1432 u16 tx_seq_16)
1433 {
1434 struct wl1271_cmd_set_keys *cmd;
1435 int ret = 0;
1436 u8 lid_type;
1437
1438 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1439 if (!cmd)
1440 return -ENOMEM;
1441
1442 if (hlid == wlvif->ap.bcast_hlid) {
1443 if (key_type == KEY_WEP)
1444 lid_type = WEP_DEFAULT_LID_TYPE;
1445 else
1446 lid_type = BROADCAST_LID_TYPE;
1447 } else {
1448 lid_type = UNICAST_LID_TYPE;
1449 }
1450
1451 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1452 " hlid: %d", (int)action, (int)id, (int)lid_type,
1453 (int)key_type, (int)hlid);
1454
1455 cmd->lid_key_type = lid_type;
1456 cmd->hlid = hlid;
1457 cmd->key_action = cpu_to_le16(action);
1458 cmd->key_size = key_size;
1459 cmd->key_type = key_type;
1460 cmd->key_id = id;
1461 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1462 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1463
1464 if (key_type == KEY_TKIP) {
1465 /*
1466 * We get the key in the following form:
1467 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1468 * but the target is expecting:
1469 * TKIP - RX MIC - TX MIC
1470 */
1471 memcpy(cmd->key, key, 16);
1472 memcpy(cmd->key + 16, key + 24, 8);
1473 memcpy(cmd->key + 24, key + 16, 8);
1474 } else {
1475 memcpy(cmd->key, key, key_size);
1476 }
1477
1478 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1479
1480 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1481 if (ret < 0) {
1482 wl1271_warning("could not set ap keys");
1483 goto out;
1484 }
1485
1486 out:
1487 kfree(cmd);
1488 return ret;
1489 }
1490
1491 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1492 u8 hlid)
1493 {
1494 struct wl12xx_cmd_set_peer_state *cmd;
1495 int ret = 0;
1496
1497 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1498
1499 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1500 if (!cmd) {
1501 ret = -ENOMEM;
1502 goto out;
1503 }
1504
1505 cmd->hlid = hlid;
1506 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1507
1508 /* wmm param is valid only for station role */
1509 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1510 cmd->wmm = wlvif->wmm_enabled;
1511
1512 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1513 if (ret < 0) {
1514 wl1271_error("failed to send set peer state command");
1515 goto out_free;
1516 }
1517
1518 out_free:
1519 kfree(cmd);
1520
1521 out:
1522 return ret;
1523 }
1524
1525 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1526 struct ieee80211_sta *sta, u8 hlid)
1527 {
1528 struct wl12xx_cmd_add_peer *cmd;
1529 int i, ret;
1530 u32 sta_rates;
1531
1532 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1533
1534 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1535 if (!cmd) {
1536 ret = -ENOMEM;
1537 goto out;
1538 }
1539
1540 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1541 cmd->bss_index = WL1271_AP_BSS_INDEX;
1542 cmd->aid = sta->aid;
1543 cmd->hlid = hlid;
1544 cmd->sp_len = sta->max_sp;
1545 cmd->wmm = sta->wme ? 1 : 0;
1546 cmd->session_id = wl->session_ids[hlid];
1547 cmd->role_id = wlvif->role_id;
1548
1549 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1550 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1551 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1552 WL1271_PSD_UPSD_TRIGGER;
1553 else
1554 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1555 WL1271_PSD_LEGACY;
1556
1557
1558 sta_rates = sta->supp_rates[wlvif->band];
1559 if (sta->ht_cap.ht_supported)
1560 sta_rates |=
1561 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1562 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1563
1564 cmd->supported_rates =
1565 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1566 wlvif->band));
1567
1568 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1569 cmd->supported_rates, sta->uapsd_queues);
1570
1571 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1572 if (ret < 0) {
1573 wl1271_error("failed to initiate cmd add peer");
1574 goto out_free;
1575 }
1576
1577 out_free:
1578 kfree(cmd);
1579
1580 out:
1581 return ret;
1582 }
1583
1584 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1585 u8 hlid)
1586 {
1587 struct wl12xx_cmd_remove_peer *cmd;
1588 int ret;
1589 bool timeout = false;
1590
1591 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1592
1593 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1594 if (!cmd) {
1595 ret = -ENOMEM;
1596 goto out;
1597 }
1598
1599 cmd->hlid = hlid;
1600 /* We never send a deauth, mac80211 is in charge of this */
1601 cmd->reason_opcode = 0;
1602 cmd->send_deauth_flag = 0;
1603 cmd->role_id = wlvif->role_id;
1604
1605 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1606 if (ret < 0) {
1607 wl1271_error("failed to initiate cmd remove peer");
1608 goto out_free;
1609 }
1610
1611 ret = wl->ops->wait_for_event(wl,
1612 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1613 &timeout);
1614
1615 /*
1616 * We are ok with a timeout here. The event is sometimes not sent
1617 * due to a firmware bug. In case of another error (like SDIO timeout)
1618 * queue a recovery.
1619 */
1620 if (ret)
1621 wl12xx_queue_recovery_work(wl);
1622
1623 out_free:
1624 kfree(cmd);
1625
1626 out:
1627 return ret;
1628 }
1629
1630 static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch)
1631 {
1632 /*
1633 * map the given band/channel to the respective predefined
1634 * bit expected by the fw
1635 */
1636 switch (band) {
1637 case IEEE80211_BAND_2GHZ:
1638 /* channels 1..14 are mapped to 0..13 */
1639 if (ch >= 1 && ch <= 14)
1640 return ch - 1;
1641 break;
1642 case IEEE80211_BAND_5GHZ:
1643 switch (ch) {
1644 case 8 ... 16:
1645 /* channels 8,12,16 are mapped to 18,19,20 */
1646 return 18 + (ch-8)/4;
1647 case 34 ... 48:
1648 /* channels 34,36..48 are mapped to 21..28 */
1649 return 21 + (ch-34)/2;
1650 case 52 ... 64:
1651 /* channels 52,56..64 are mapped to 29..32 */
1652 return 29 + (ch-52)/4;
1653 case 100 ... 140:
1654 /* channels 100,104..140 are mapped to 33..43 */
1655 return 33 + (ch-100)/4;
1656 case 149 ... 165:
1657 /* channels 149,153..165 are mapped to 44..48 */
1658 return 44 + (ch-149)/4;
1659 default:
1660 break;
1661 }
1662 break;
1663 default:
1664 break;
1665 }
1666
1667 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1668 return -1;
1669 }
1670
1671 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1672 enum ieee80211_band band)
1673 {
1674 int ch_bit_idx = 0;
1675
1676 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1677 return;
1678
1679 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1680
1681 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1682 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1683 }
1684
1685 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1686 {
1687 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1688 int ret = 0, i, b, ch_bit_idx;
1689 struct ieee80211_channel *channel;
1690 u32 tmp_ch_bitmap[2];
1691 u16 ch;
1692 struct wiphy *wiphy = wl->hw->wiphy;
1693 struct ieee80211_supported_band *band;
1694 bool timeout = false;
1695
1696 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1697 return 0;
1698
1699 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1700
1701 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap));
1702
1703 for (b = IEEE80211_BAND_2GHZ; b <= IEEE80211_BAND_5GHZ; b++) {
1704 band = wiphy->bands[b];
1705 for (i = 0; i < band->n_channels; i++) {
1706 channel = &band->channels[i];
1707 ch = channel->hw_value;
1708
1709 if (channel->flags & (IEEE80211_CHAN_DISABLED |
1710 IEEE80211_CHAN_RADAR |
1711 IEEE80211_CHAN_NO_IR))
1712 continue;
1713
1714 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1715 if (ch_bit_idx < 0)
1716 continue;
1717
1718 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap);
1719 }
1720 }
1721
1722 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0];
1723 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1];
1724
1725 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1726 goto out;
1727
1728 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1729 if (!cmd) {
1730 ret = -ENOMEM;
1731 goto out;
1732 }
1733
1734 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]);
1735 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]);
1736
1737 wl1271_debug(DEBUG_CMD,
1738 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1739 cmd->ch_bit_map1, cmd->ch_bit_map2);
1740
1741 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1742 if (ret < 0) {
1743 wl1271_error("failed to send reg domain dfs config");
1744 goto out;
1745 }
1746
1747 ret = wl->ops->wait_for_event(wl,
1748 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1749 &timeout);
1750 if (ret < 0 || timeout) {
1751 wl1271_error("reg domain conf %serror",
1752 timeout ? "completion " : "");
1753 ret = timeout ? -ETIMEDOUT : ret;
1754 goto out;
1755 }
1756
1757 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1758 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1759
1760 out:
1761 kfree(cmd);
1762 return ret;
1763 }
1764
1765 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1766 {
1767 struct wl12xx_cmd_config_fwlog *cmd;
1768 int ret = 0;
1769
1770 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1771
1772 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1773 if (!cmd) {
1774 ret = -ENOMEM;
1775 goto out;
1776 }
1777
1778 cmd->logger_mode = wl->conf.fwlog.mode;
1779 cmd->log_severity = wl->conf.fwlog.severity;
1780 cmd->timestamp = wl->conf.fwlog.timestamp;
1781 cmd->output = wl->conf.fwlog.output;
1782 cmd->threshold = wl->conf.fwlog.threshold;
1783
1784 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1785 if (ret < 0) {
1786 wl1271_error("failed to send config firmware logger command");
1787 goto out_free;
1788 }
1789
1790 out_free:
1791 kfree(cmd);
1792
1793 out:
1794 return ret;
1795 }
1796
1797 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1798 {
1799 struct wl12xx_cmd_start_fwlog *cmd;
1800 int ret = 0;
1801
1802 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1803
1804 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1805 if (!cmd) {
1806 ret = -ENOMEM;
1807 goto out;
1808 }
1809
1810 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1811 if (ret < 0) {
1812 wl1271_error("failed to send start firmware logger command");
1813 goto out_free;
1814 }
1815
1816 out_free:
1817 kfree(cmd);
1818
1819 out:
1820 return ret;
1821 }
1822
1823 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1824 {
1825 struct wl12xx_cmd_stop_fwlog *cmd;
1826 int ret = 0;
1827
1828 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1829
1830 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1831 if (!cmd) {
1832 ret = -ENOMEM;
1833 goto out;
1834 }
1835
1836 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1837 if (ret < 0) {
1838 wl1271_error("failed to send stop firmware logger command");
1839 goto out_free;
1840 }
1841
1842 out_free:
1843 kfree(cmd);
1844
1845 out:
1846 return ret;
1847 }
1848
1849 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1850 u8 role_id, enum ieee80211_band band, u8 channel)
1851 {
1852 struct wl12xx_cmd_roc *cmd;
1853 int ret = 0;
1854
1855 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1856
1857 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1858 return -EINVAL;
1859
1860 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1861 if (!cmd) {
1862 ret = -ENOMEM;
1863 goto out;
1864 }
1865
1866 cmd->role_id = role_id;
1867 cmd->channel = channel;
1868 switch (band) {
1869 case IEEE80211_BAND_2GHZ:
1870 cmd->band = WLCORE_BAND_2_4GHZ;
1871 break;
1872 case IEEE80211_BAND_5GHZ:
1873 cmd->band = WLCORE_BAND_5GHZ;
1874 break;
1875 default:
1876 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1877 ret = -EINVAL;
1878 goto out_free;
1879 }
1880
1881
1882 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1883 if (ret < 0) {
1884 wl1271_error("failed to send ROC command");
1885 goto out_free;
1886 }
1887
1888 out_free:
1889 kfree(cmd);
1890
1891 out:
1892 return ret;
1893 }
1894
1895 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1896 {
1897 struct wl12xx_cmd_croc *cmd;
1898 int ret = 0;
1899
1900 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1901
1902 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1903 if (!cmd) {
1904 ret = -ENOMEM;
1905 goto out;
1906 }
1907 cmd->role_id = role_id;
1908
1909 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1910 sizeof(*cmd), 0);
1911 if (ret < 0) {
1912 wl1271_error("failed to send ROC command");
1913 goto out_free;
1914 }
1915
1916 out_free:
1917 kfree(cmd);
1918
1919 out:
1920 return ret;
1921 }
1922
1923 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1924 enum ieee80211_band band, u8 channel)
1925 {
1926 int ret = 0;
1927
1928 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1929 return 0;
1930
1931 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1932 if (ret < 0)
1933 goto out;
1934
1935 __set_bit(role_id, wl->roc_map);
1936 out:
1937 return ret;
1938 }
1939
1940 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1941 {
1942 int ret = 0;
1943
1944 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1945 return 0;
1946
1947 ret = wl12xx_cmd_croc(wl, role_id);
1948 if (ret < 0)
1949 goto out;
1950
1951 __clear_bit(role_id, wl->roc_map);
1952
1953 /*
1954 * Rearm the tx watchdog when removing the last ROC. This prevents
1955 * recoveries due to just finished ROCs - when Tx hasn't yet had
1956 * a chance to get out.
1957 */
1958 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1959 wl12xx_rearm_tx_watchdog_locked(wl);
1960 out:
1961 return ret;
1962 }
1963
1964 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1965 {
1966 struct wl12xx_cmd_stop_channel_switch *cmd;
1967 int ret;
1968
1969 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1970
1971 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1972 if (!cmd) {
1973 ret = -ENOMEM;
1974 goto out;
1975 }
1976
1977 cmd->role_id = wlvif->role_id;
1978
1979 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1980 if (ret < 0) {
1981 wl1271_error("failed to stop channel switch command");
1982 goto out_free;
1983 }
1984
1985 out_free:
1986 kfree(cmd);
1987
1988 out:
1989 return ret;
1990 }
1991
1992 /* start dev role and roc on its channel */
1993 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1994 enum ieee80211_band band, int channel)
1995 {
1996 int ret;
1997
1998 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1999 wlvif->bss_type == BSS_TYPE_IBSS)))
2000 return -EINVAL;
2001
2002 ret = wl12xx_cmd_role_enable(wl,
2003 wl12xx_wlvif_to_vif(wlvif)->addr,
2004 WL1271_ROLE_DEVICE,
2005 &wlvif->dev_role_id);
2006 if (ret < 0)
2007 goto out;
2008
2009 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2010 if (ret < 0)
2011 goto out_disable;
2012
2013 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2014 if (ret < 0)
2015 goto out_stop;
2016
2017 return 0;
2018
2019 out_stop:
2020 wl12xx_cmd_role_stop_dev(wl, wlvif);
2021 out_disable:
2022 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2023 out:
2024 return ret;
2025 }
2026
2027 /* croc dev hlid, and stop the role */
2028 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2029 {
2030 int ret;
2031
2032 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2033 wlvif->bss_type == BSS_TYPE_IBSS)))
2034 return -EINVAL;
2035
2036 /* flush all pending packets */
2037 ret = wlcore_tx_work_locked(wl);
2038 if (ret < 0)
2039 goto out;
2040
2041 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2042 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2043 if (ret < 0)
2044 goto out;
2045 }
2046
2047 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2048 if (ret < 0)
2049 goto out;
2050
2051 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2052 if (ret < 0)
2053 goto out;
2054
2055 out:
2056 return ret;
2057 }
Linux kernel - Deliverables
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