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fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / net / wireless / ti / wlcore / cmd.c
blob9b2ecf52449faa911f25bea176ed12683fe1836e
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 (WARN_ON(wl->state == WLCORE_STATE_RESTARTING &&
64 id != CMD_STOP_FWLOGGER))
65 return -EIO;
66
67 cmd = buf;
68 cmd->id = cpu_to_le16(id);
69 cmd->status = 0;
70
71 WARN_ON(len % 4 != 0);
72 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
73
74 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
75 if (ret < 0)
76 return ret;
77
78 /*
79 * TODO: we just need this because one bit is in a different
80 * place. Is there any better way?
81 */
82 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
83 if (ret < 0)
84 return ret;
85
86 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
87
88 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
89 if (ret < 0)
90 return ret;
91
92 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
93 if (time_after(jiffies, timeout)) {
94 wl1271_error("command complete timeout");
95 return -ETIMEDOUT;
96 }
97
98 poll_count++;
99 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
100 udelay(10);
101 else
102 msleep(1);
103
104 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
105 if (ret < 0)
106 return ret;
107 }
108
109 /* read back the status code of the command */
110 if (res_len == 0)
111 res_len = sizeof(struct wl1271_cmd_header);
112
113 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
114 if (ret < 0)
115 return ret;
116
117 status = le16_to_cpu(cmd->status);
118
119 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
120 WL1271_ACX_INTR_CMD_COMPLETE);
121 if (ret < 0)
122 return ret;
123
124 return status;
125 }
126
127 /*
128 * send command to fw and return cmd status on success
129 * valid_rets contains a bitmap of allowed error codes
130 */
131 int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf, size_t len,
132 size_t res_len, unsigned long valid_rets)
133 {
134 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
135
136 if (ret < 0)
137 goto fail;
138
139 /* success is always a valid status */
140 valid_rets |= BIT(CMD_STATUS_SUCCESS);
141
142 if (ret >= MAX_COMMAND_STATUS ||
143 !test_bit(ret, &valid_rets)) {
144 wl1271_error("command execute failure %d", ret);
145 ret = -EIO;
146 goto fail;
147 }
148 return ret;
149 fail:
150 wl12xx_queue_recovery_work(wl);
151 return ret;
152 }
153 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
154
155 /*
156 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
157 * return 0 on success.
158 */
159 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
160 size_t res_len)
161 {
162 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
163
164 if (ret < 0)
165 return ret;
166 return 0;
167 }
168
169 /*
170 * Poll the mailbox event field until any of the bits in the mask is set or a
171 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
172 */
173 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
174 u32 mask, bool *timeout)
175 {
176 u32 *events_vector;
177 u32 event;
178 unsigned long timeout_time;
179 u16 poll_count = 0;
180 int ret = 0;
181
182 *timeout = false;
183
184 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
185 if (!events_vector)
186 return -ENOMEM;
187
188 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
189
190 do {
191 if (time_after(jiffies, timeout_time)) {
192 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
193 (int)mask);
194 *timeout = true;
195 goto out;
196 }
197
198 poll_count++;
199 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
200 usleep_range(50, 51);
201 else
202 usleep_range(1000, 5000);
203
204 /* read from both event fields */
205 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
206 sizeof(*events_vector), false);
207 if (ret < 0)
208 goto out;
209
210 event = *events_vector & mask;
211
212 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
213 sizeof(*events_vector), false);
214 if (ret < 0)
215 goto out;
216
217 event |= *events_vector & mask;
218 } while (!event);
219
220 out:
221 kfree(events_vector);
222 return ret;
223 }
224 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
225
226 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
227 u8 *role_id)
228 {
229 struct wl12xx_cmd_role_enable *cmd;
230 int ret;
231
232 wl1271_debug(DEBUG_CMD, "cmd role enable");
233
234 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
235 return -EBUSY;
236
237 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
238 if (!cmd) {
239 ret = -ENOMEM;
240 goto out;
241 }
242
243 /* get role id */
244 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
245 if (cmd->role_id >= WL12XX_MAX_ROLES) {
246 ret = -EBUSY;
247 goto out_free;
248 }
249
250 memcpy(cmd->mac_address, addr, ETH_ALEN);
251 cmd->role_type = role_type;
252
253 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
254 if (ret < 0) {
255 wl1271_error("failed to initiate cmd role enable");
256 goto out_free;
257 }
258
259 __set_bit(cmd->role_id, wl->roles_map);
260 *role_id = cmd->role_id;
261
262 out_free:
263 kfree(cmd);
264
265 out:
266 return ret;
267 }
268
269 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
270 {
271 struct wl12xx_cmd_role_disable *cmd;
272 int ret;
273
274 wl1271_debug(DEBUG_CMD, "cmd role disable");
275
276 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
277 return -ENOENT;
278
279 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
280 if (!cmd) {
281 ret = -ENOMEM;
282 goto out;
283 }
284 cmd->role_id = *role_id;
285
286 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
287 if (ret < 0) {
288 wl1271_error("failed to initiate cmd role disable");
289 goto out_free;
290 }
291
292 __clear_bit(*role_id, wl->roles_map);
293 *role_id = WL12XX_INVALID_ROLE_ID;
294
295 out_free:
296 kfree(cmd);
297
298 out:
299 return ret;
300 }
301
302 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
303 {
304 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
305 wl->session_ids[hlid] = 0;
306
307 wl->session_ids[hlid]++;
308
309 return wl->session_ids[hlid];
310 }
311
312 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
313 {
314 unsigned long flags;
315 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
316 if (link >= WL12XX_MAX_LINKS)
317 return -EBUSY;
318
319 wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
320
321 /* these bits are used by op_tx */
322 spin_lock_irqsave(&wl->wl_lock, flags);
323 __set_bit(link, wl->links_map);
324 __set_bit(link, wlvif->links_map);
325 spin_unlock_irqrestore(&wl->wl_lock, flags);
326
327 /* take the last "freed packets" value from the current FW status */
328 wl->links[link].prev_freed_pkts =
329 wl->fw_status_2->counters.tx_lnk_free_pkts[link];
330 wl->links[link].wlvif = wlvif;
331
332 /*
333 * Take saved value for total freed packets from wlvif, in case this is
334 * recovery/resume
335 */
336 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
337 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
338
339 *hlid = link;
340
341 wl->active_link_count++;
342 return 0;
343 }
344
345 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
346 {
347 unsigned long flags;
348
349 if (*hlid == WL12XX_INVALID_LINK_ID)
350 return;
351
352 /* these bits are used by op_tx */
353 spin_lock_irqsave(&wl->wl_lock, flags);
354 __clear_bit(*hlid, wl->links_map);
355 __clear_bit(*hlid, wlvif->links_map);
356 spin_unlock_irqrestore(&wl->wl_lock, flags);
357
358 wl->links[*hlid].allocated_pkts = 0;
359 wl->links[*hlid].prev_freed_pkts = 0;
360 wl->links[*hlid].ba_bitmap = 0;
361 memset(wl->links[*hlid].addr, 0, ETH_ALEN);
362
363 /*
364 * At this point op_tx() will not add more packets to the queues. We
365 * can purge them.
366 */
367 wl1271_tx_reset_link_queues(wl, *hlid);
368 wl->links[*hlid].wlvif = NULL;
369
370 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
371 (wlvif->bss_type == BSS_TYPE_AP_BSS &&
372 *hlid == wlvif->ap.bcast_hlid)) {
373 /*
374 * save the total freed packets in the wlvif, in case this is
375 * recovery or suspend
376 */
377 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
378
379 /*
380 * increment the initial seq number on recovery to account for
381 * transmitted packets that we haven't yet got in the FW status
382 */
383 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
384 wlvif->total_freed_pkts +=
385 WL1271_TX_SQN_POST_RECOVERY_PADDING;
386 }
387
388 wl->links[*hlid].total_freed_pkts = 0;
389
390 *hlid = WL12XX_INVALID_LINK_ID;
391 wl->active_link_count--;
392 WARN_ON_ONCE(wl->active_link_count < 0);
393 }
394
395 static u8 wlcore_get_native_channel_type(u8 nl_channel_type)
396 {
397 switch (nl_channel_type) {
398 case NL80211_CHAN_NO_HT:
399 return WLCORE_CHAN_NO_HT;
400 case NL80211_CHAN_HT20:
401 return WLCORE_CHAN_HT20;
402 case NL80211_CHAN_HT40MINUS:
403 return WLCORE_CHAN_HT40MINUS;
404 case NL80211_CHAN_HT40PLUS:
405 return WLCORE_CHAN_HT40PLUS;
406 default:
407 WARN_ON(1);
408 return WLCORE_CHAN_NO_HT;
409 }
410 }
411
412 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
413 struct wl12xx_vif *wlvif,
414 enum ieee80211_band band,
415 int channel)
416 {
417 struct wl12xx_cmd_role_start *cmd;
418 int ret;
419
420 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
421 if (!cmd) {
422 ret = -ENOMEM;
423 goto out;
424 }
425
426 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
427
428 cmd->role_id = wlvif->dev_role_id;
429 if (band == IEEE80211_BAND_5GHZ)
430 cmd->band = WLCORE_BAND_5GHZ;
431 cmd->channel = channel;
432
433 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
434 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
435 if (ret)
436 goto out_free;
437 }
438 cmd->device.hlid = wlvif->dev_hlid;
439 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
440
441 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
442 cmd->role_id, cmd->device.hlid, cmd->device.session);
443
444 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
445 if (ret < 0) {
446 wl1271_error("failed to initiate cmd role enable");
447 goto err_hlid;
448 }
449
450 goto out_free;
451
452 err_hlid:
453 /* clear links on error */
454 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
455
456 out_free:
457 kfree(cmd);
458
459 out:
460 return ret;
461 }
462
463 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
464 struct wl12xx_vif *wlvif)
465 {
466 struct wl12xx_cmd_role_stop *cmd;
467 int ret;
468
469 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
470 return -EINVAL;
471
472 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
473 if (!cmd) {
474 ret = -ENOMEM;
475 goto out;
476 }
477
478 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
479
480 cmd->role_id = wlvif->dev_role_id;
481 cmd->disc_type = DISCONNECT_IMMEDIATE;
482 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
483
484 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
485 if (ret < 0) {
486 wl1271_error("failed to initiate cmd role stop");
487 goto out_free;
488 }
489
490 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
491
492 out_free:
493 kfree(cmd);
494
495 out:
496 return ret;
497 }
498
499 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
500 {
501 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
502 struct wl12xx_cmd_role_start *cmd;
503 u32 supported_rates;
504 int ret;
505
506 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
507 if (!cmd) {
508 ret = -ENOMEM;
509 goto out;
510 }
511
512 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
513
514 cmd->role_id = wlvif->role_id;
515 if (wlvif->band == IEEE80211_BAND_5GHZ)
516 cmd->band = WLCORE_BAND_5GHZ;
517 cmd->channel = wlvif->channel;
518 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
519 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
520 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
521 cmd->sta.ssid_len = wlvif->ssid_len;
522 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
523 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
524
525 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
526 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
527 if (wlvif->p2p)
528 supported_rates &= ~CONF_TX_CCK_RATES;
529
530 cmd->sta.local_rates = cpu_to_le32(supported_rates);
531
532 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
533
534 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
535 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
536 if (ret)
537 goto out_free;
538 }
539 cmd->sta.hlid = wlvif->sta.hlid;
540 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
541 /*
542 * We don't have the correct remote rates in this stage. The
543 * rates will be reconfigured later, after association, if the
544 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
545 * we can do, so use all supported_rates here.
546 */
547 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
548
549 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
550 "basic_rate_set: 0x%x, remote_rates: 0x%x",
551 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
552 wlvif->basic_rate_set, wlvif->rate_set);
553
554 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
555 if (ret < 0) {
556 wl1271_error("failed to initiate cmd role start sta");
557 goto err_hlid;
558 }
559
560 wlvif->sta.role_chan_type = wlvif->channel_type;
561 goto out_free;
562
563 err_hlid:
564 /* clear links on error. */
565 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
566
567 out_free:
568 kfree(cmd);
569
570 out:
571 return ret;
572 }
573
574 /* use this function to stop ibss as well */
575 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
576 {
577 struct wl12xx_cmd_role_stop *cmd;
578 int ret;
579
580 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
581 return -EINVAL;
582
583 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
584 if (!cmd) {
585 ret = -ENOMEM;
586 goto out;
587 }
588
589 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
590
591 cmd->role_id = wlvif->role_id;
592 cmd->disc_type = DISCONNECT_IMMEDIATE;
593 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
594
595 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
596 if (ret < 0) {
597 wl1271_error("failed to initiate cmd role stop sta");
598 goto out_free;
599 }
600
601 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
602
603 out_free:
604 kfree(cmd);
605
606 out:
607 return ret;
608 }
609
610 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
611 {
612 struct wl12xx_cmd_role_start *cmd;
613 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
614 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
615 u32 supported_rates;
616 int ret;
617
618 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
619
620 /* trying to use hidden SSID with an old hostapd version */
621 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
622 wl1271_error("got a null SSID from beacon/bss");
623 ret = -EINVAL;
624 goto out;
625 }
626
627 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
628 if (!cmd) {
629 ret = -ENOMEM;
630 goto out;
631 }
632
633 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
634 if (ret < 0)
635 goto out_free;
636
637 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
638 if (ret < 0)
639 goto out_free_global;
640
641 /* use the previous security seq, if this is a recovery/resume */
642 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
643 wlvif->total_freed_pkts;
644
645 cmd->role_id = wlvif->role_id;
646 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
647 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
648 cmd->ap.global_hlid = wlvif->ap.global_hlid;
649 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
650 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
651 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
652 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
653 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
654 cmd->ap.dtim_interval = bss_conf->dtim_period;
655 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
656 /* FIXME: Change when adding DFS */
657 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
658 cmd->ap.wmm = wlvif->wmm_enabled;
659 cmd->channel = wlvif->channel;
660 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
661
662 if (!bss_conf->hidden_ssid) {
663 /* take the SSID from the beacon for backward compatibility */
664 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
665 cmd->ap.ssid_len = wlvif->ssid_len;
666 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
667 } else {
668 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
669 cmd->ap.ssid_len = bss_conf->ssid_len;
670 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
671 }
672
673 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
674 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
675 if (wlvif->p2p)
676 supported_rates &= ~CONF_TX_CCK_RATES;
677
678 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
679 supported_rates);
680
681 cmd->ap.local_rates = cpu_to_le32(supported_rates);
682
683 switch (wlvif->band) {
684 case IEEE80211_BAND_2GHZ:
685 cmd->band = WLCORE_BAND_2_4GHZ;
686 break;
687 case IEEE80211_BAND_5GHZ:
688 cmd->band = WLCORE_BAND_5GHZ;
689 break;
690 default:
691 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
692 cmd->band = WLCORE_BAND_2_4GHZ;
693 break;
694 }
695
696 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
697 if (ret < 0) {
698 wl1271_error("failed to initiate cmd role start ap");
699 goto out_free_bcast;
700 }
701
702 goto out_free;
703
704 out_free_bcast:
705 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
706
707 out_free_global:
708 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
709
710 out_free:
711 kfree(cmd);
712
713 out:
714 return ret;
715 }
716
717 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
718 {
719 struct wl12xx_cmd_role_stop *cmd;
720 int ret;
721
722 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
723 if (!cmd) {
724 ret = -ENOMEM;
725 goto out;
726 }
727
728 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
729
730 cmd->role_id = wlvif->role_id;
731
732 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
733 if (ret < 0) {
734 wl1271_error("failed to initiate cmd role stop ap");
735 goto out_free;
736 }
737
738 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
739 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
740
741 out_free:
742 kfree(cmd);
743
744 out:
745 return ret;
746 }
747
748 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
749 {
750 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
751 struct wl12xx_cmd_role_start *cmd;
752 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
753 int ret;
754
755 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
756 if (!cmd) {
757 ret = -ENOMEM;
758 goto out;
759 }
760
761 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
762
763 cmd->role_id = wlvif->role_id;
764 if (wlvif->band == IEEE80211_BAND_5GHZ)
765 cmd->band = WLCORE_BAND_5GHZ;
766 cmd->channel = wlvif->channel;
767 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
768 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
769 cmd->ibss.dtim_interval = bss_conf->dtim_period;
770 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
771 cmd->ibss.ssid_len = wlvif->ssid_len;
772 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
773 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
774 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
775
776 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
777 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
778 if (ret)
779 goto out_free;
780 }
781 cmd->ibss.hlid = wlvif->sta.hlid;
782 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
783
784 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
785 "basic_rate_set: 0x%x, remote_rates: 0x%x",
786 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
787 wlvif->basic_rate_set, wlvif->rate_set);
788
789 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
790 vif->bss_conf.bssid);
791
792 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
793 if (ret < 0) {
794 wl1271_error("failed to initiate cmd role enable");
795 goto err_hlid;
796 }
797
798 goto out_free;
799
800 err_hlid:
801 /* clear links on error. */
802 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
803
804 out_free:
805 kfree(cmd);
806
807 out:
808 return ret;
809 }
810
811
812 /**
813 * send test command to firmware
814 *
815 * @wl: wl struct
816 * @buf: buffer containing the command, with all headers, must work with dma
817 * @len: length of the buffer
818 * @answer: is answer needed
819 */
820 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
821 {
822 int ret;
823 size_t res_len = 0;
824
825 wl1271_debug(DEBUG_CMD, "cmd test");
826
827 if (answer)
828 res_len = buf_len;
829
830 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
831
832 if (ret < 0) {
833 wl1271_warning("TEST command failed");
834 return ret;
835 }
836
837 return ret;
838 }
839 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
840
841 /**
842 * read acx from firmware
843 *
844 * @wl: wl struct
845 * @id: acx id
846 * @buf: buffer for the response, including all headers, must work with dma
847 * @len: length of buf
848 */
849 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
850 size_t cmd_len, size_t res_len)
851 {
852 struct acx_header *acx = buf;
853 int ret;
854
855 wl1271_debug(DEBUG_CMD, "cmd interrogate");
856
857 acx->id = cpu_to_le16(id);
858
859 /* response payload length, does not include any headers */
860 acx->len = cpu_to_le16(res_len - sizeof(*acx));
861
862 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
863 if (ret < 0)
864 wl1271_error("INTERROGATE command failed");
865
866 return ret;
867 }
868
869 /**
870 * write acx value to firmware
871 *
872 * @wl: wl struct
873 * @id: acx id
874 * @buf: buffer containing acx, including all headers, must work with dma
875 * @len: length of buf
876 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
877 * return the cmd status on success.
878 */
879 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
880 size_t len, unsigned long valid_rets)
881 {
882 struct acx_header *acx = buf;
883 int ret;
884
885 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
886
887 acx->id = cpu_to_le16(id);
888
889 /* payload length, does not include any headers */
890 acx->len = cpu_to_le16(len - sizeof(*acx));
891
892 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
893 valid_rets);
894 if (ret < 0) {
895 wl1271_warning("CONFIGURE command NOK");
896 return ret;
897 }
898
899 return ret;
900 }
901
902 /*
903 * wrapper for wlcore_cmd_configure that accepts only success status.
904 * return 0 on success
905 */
906 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
907 {
908 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
909
910 if (ret < 0)
911 return ret;
912 return 0;
913 }
914 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
915
916 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
917 {
918 struct cmd_enabledisable_path *cmd;
919 int ret;
920 u16 cmd_rx, cmd_tx;
921
922 wl1271_debug(DEBUG_CMD, "cmd data path");
923
924 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
925 if (!cmd) {
926 ret = -ENOMEM;
927 goto out;
928 }
929
930 /* the channel here is only used for calibration, so hardcoded to 1 */
931 cmd->channel = 1;
932
933 if (enable) {
934 cmd_rx = CMD_ENABLE_RX;
935 cmd_tx = CMD_ENABLE_TX;
936 } else {
937 cmd_rx = CMD_DISABLE_RX;
938 cmd_tx = CMD_DISABLE_TX;
939 }
940
941 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
942 if (ret < 0) {
943 wl1271_error("rx %s cmd for channel %d failed",
944 enable ? "start" : "stop", cmd->channel);
945 goto out;
946 }
947
948 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
949 enable ? "start" : "stop", cmd->channel);
950
951 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
952 if (ret < 0) {
953 wl1271_error("tx %s cmd for channel %d failed",
954 enable ? "start" : "stop", cmd->channel);
955 goto out;
956 }
957
958 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
959 enable ? "start" : "stop", cmd->channel);
960
961 out:
962 kfree(cmd);
963 return ret;
964 }
965 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
966
967 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
968 u8 ps_mode, u16 auto_ps_timeout)
969 {
970 struct wl1271_cmd_ps_params *ps_params = NULL;
971 int ret = 0;
972
973 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
974
975 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
976 if (!ps_params) {
977 ret = -ENOMEM;
978 goto out;
979 }
980
981 ps_params->role_id = wlvif->role_id;
982 ps_params->ps_mode = ps_mode;
983 ps_params->auto_ps_timeout = auto_ps_timeout;
984
985 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
986 sizeof(*ps_params), 0);
987 if (ret < 0) {
988 wl1271_error("cmd set_ps_mode failed");
989 goto out;
990 }
991
992 out:
993 kfree(ps_params);
994 return ret;
995 }
996
997 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
998 u16 template_id, void *buf, size_t buf_len,
999 int index, u32 rates)
1000 {
1001 struct wl1271_cmd_template_set *cmd;
1002 int ret = 0;
1003
1004 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1005 template_id, role_id);
1006
1007 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1008 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1009
1010 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1011 if (!cmd) {
1012 ret = -ENOMEM;
1013 goto out;
1014 }
1015
1016 /* during initialization wlvif is NULL */
1017 cmd->role_id = role_id;
1018 cmd->len = cpu_to_le16(buf_len);
1019 cmd->template_type = template_id;
1020 cmd->enabled_rates = cpu_to_le32(rates);
1021 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1022 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1023 cmd->index = index;
1024
1025 if (buf)
1026 memcpy(cmd->template_data, buf, buf_len);
1027
1028 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1029 if (ret < 0) {
1030 wl1271_warning("cmd set_template failed: %d", ret);
1031 goto out_free;
1032 }
1033
1034 out_free:
1035 kfree(cmd);
1036
1037 out:
1038 return ret;
1039 }
1040
1041 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1042 {
1043 struct sk_buff *skb = NULL;
1044 int size;
1045 void *ptr;
1046 int ret = -ENOMEM;
1047
1048
1049 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1050 size = sizeof(struct wl12xx_null_data_template);
1051 ptr = NULL;
1052 } else {
1053 skb = ieee80211_nullfunc_get(wl->hw,
1054 wl12xx_wlvif_to_vif(wlvif));
1055 if (!skb)
1056 goto out;
1057 size = skb->len;
1058 ptr = skb->data;
1059 }
1060
1061 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1062 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1063 wlvif->basic_rate);
1064
1065 out:
1066 dev_kfree_skb(skb);
1067 if (ret)
1068 wl1271_warning("cmd buld null data failed %d", ret);
1069
1070 return ret;
1071
1072 }
1073
1074 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1075 struct wl12xx_vif *wlvif)
1076 {
1077 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1078 struct sk_buff *skb = NULL;
1079 int ret = -ENOMEM;
1080
1081 skb = ieee80211_nullfunc_get(wl->hw, vif);
1082 if (!skb)
1083 goto out;
1084
1085 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1086 skb->data, skb->len,
1087 wlvif->sta.klv_template_id,
1088 wlvif->basic_rate);
1089
1090 out:
1091 dev_kfree_skb(skb);
1092 if (ret)
1093 wl1271_warning("cmd build klv null data failed %d", ret);
1094
1095 return ret;
1096
1097 }
1098
1099 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1100 u16 aid)
1101 {
1102 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1103 struct sk_buff *skb;
1104 int ret = 0;
1105
1106 skb = ieee80211_pspoll_get(wl->hw, vif);
1107 if (!skb)
1108 goto out;
1109
1110 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1111 CMD_TEMPL_PS_POLL, skb->data,
1112 skb->len, 0, wlvif->basic_rate_set);
1113
1114 out:
1115 dev_kfree_skb(skb);
1116 return ret;
1117 }
1118
1119 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1120 u8 role_id, u8 band,
1121 const u8 *ssid, size_t ssid_len,
1122 const u8 *ie, size_t ie_len, bool sched_scan)
1123 {
1124 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1125 struct sk_buff *skb;
1126 int ret;
1127 u32 rate;
1128 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1129 u16 template_id_5 = wl->scan_templ_id_5;
1130
1131 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1132
1133 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
1134 ie_len);
1135 if (!skb) {
1136 ret = -ENOMEM;
1137 goto out;
1138 }
1139 if (ie_len)
1140 memcpy(skb_put(skb, ie_len), ie, ie_len);
1141
1142 if (sched_scan &&
1143 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1144 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1145 template_id_5 = wl->sched_scan_templ_id_5;
1146 }
1147
1148 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1149 if (band == IEEE80211_BAND_2GHZ)
1150 ret = wl1271_cmd_template_set(wl, role_id,
1151 template_id_2_4,
1152 skb->data, skb->len, 0, rate);
1153 else
1154 ret = wl1271_cmd_template_set(wl, role_id,
1155 template_id_5,
1156 skb->data, skb->len, 0, rate);
1157
1158 out:
1159 dev_kfree_skb(skb);
1160 return ret;
1161 }
1162 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1163
1164 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1165 struct wl12xx_vif *wlvif,
1166 struct sk_buff *skb)
1167 {
1168 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1169 int ret;
1170 u32 rate;
1171
1172 if (!skb)
1173 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1174 if (!skb)
1175 goto out;
1176
1177 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1178
1179 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1180 if (wlvif->band == IEEE80211_BAND_2GHZ)
1181 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1182 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1183 skb->data, skb->len, 0, rate);
1184 else
1185 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1186 CMD_TEMPL_CFG_PROBE_REQ_5,
1187 skb->data, skb->len, 0, rate);
1188
1189 if (ret < 0)
1190 wl1271_error("Unable to set ap probe request template.");
1191
1192 out:
1193 return skb;
1194 }
1195
1196 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1197 {
1198 int ret, extra = 0;
1199 u16 fc;
1200 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1201 struct sk_buff *skb;
1202 struct wl12xx_arp_rsp_template *tmpl;
1203 struct ieee80211_hdr_3addr *hdr;
1204 struct arphdr *arp_hdr;
1205
1206 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1207 WL1271_EXTRA_SPACE_MAX);
1208 if (!skb) {
1209 wl1271_error("failed to allocate buffer for arp rsp template");
1210 return -ENOMEM;
1211 }
1212
1213 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1214
1215 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl));
1216 memset(tmpl, 0, sizeof(*tmpl));
1217
1218 /* llc layer */
1219 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1220 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1221
1222 /* arp header */
1223 arp_hdr = &tmpl->arp_hdr;
1224 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1225 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1226 arp_hdr->ar_hln = ETH_ALEN;
1227 arp_hdr->ar_pln = 4;
1228 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1229
1230 /* arp payload */
1231 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1232 tmpl->sender_ip = wlvif->ip_addr;
1233
1234 /* encryption space */
1235 switch (wlvif->encryption_type) {
1236 case KEY_TKIP:
1237 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1238 extra = WL1271_EXTRA_SPACE_TKIP;
1239 break;
1240 case KEY_AES:
1241 extra = WL1271_EXTRA_SPACE_AES;
1242 break;
1243 case KEY_NONE:
1244 case KEY_WEP:
1245 case KEY_GEM:
1246 extra = 0;
1247 break;
1248 default:
1249 wl1271_warning("Unknown encryption type: %d",
1250 wlvif->encryption_type);
1251 ret = -EINVAL;
1252 goto out;
1253 }
1254
1255 if (extra) {
1256 u8 *space = skb_push(skb, extra);
1257 memset(space, 0, extra);
1258 }
1259
1260 /* QoS header - BE */
1261 if (wlvif->sta.qos)
1262 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1263
1264 /* mac80211 header */
1265 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
1266 memset(hdr, 0, sizeof(*hdr));
1267 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1268 if (wlvif->sta.qos)
1269 fc |= IEEE80211_STYPE_QOS_DATA;
1270 else
1271 fc |= IEEE80211_STYPE_DATA;
1272 if (wlvif->encryption_type != KEY_NONE)
1273 fc |= IEEE80211_FCTL_PROTECTED;
1274
1275 hdr->frame_control = cpu_to_le16(fc);
1276 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1277 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1278 memset(hdr->addr3, 0xff, ETH_ALEN);
1279
1280 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1281 skb->data, skb->len, 0,
1282 wlvif->basic_rate);
1283 out:
1284 dev_kfree_skb(skb);
1285 return ret;
1286 }
1287
1288 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1289 {
1290 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1291 struct ieee80211_qos_hdr template;
1292
1293 memset(&template, 0, sizeof(template));
1294
1295 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1296 memcpy(template.addr2, vif->addr, ETH_ALEN);
1297 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1298
1299 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1300 IEEE80211_STYPE_QOS_NULLFUNC |
1301 IEEE80211_FCTL_TODS);
1302
1303 /* FIXME: not sure what priority to use here */
1304 template.qos_ctrl = cpu_to_le16(0);
1305
1306 return wl1271_cmd_template_set(wl, wlvif->role_id,
1307 CMD_TEMPL_QOS_NULL_DATA, &template,
1308 sizeof(template), 0,
1309 wlvif->basic_rate);
1310 }
1311
1312 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1313 {
1314 struct wl1271_cmd_set_keys *cmd;
1315 int ret = 0;
1316
1317 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1318
1319 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1320 if (!cmd) {
1321 ret = -ENOMEM;
1322 goto out;
1323 }
1324
1325 cmd->hlid = hlid;
1326 cmd->key_id = id;
1327 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1328 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1329 cmd->key_type = KEY_WEP;
1330
1331 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1332 if (ret < 0) {
1333 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1334 goto out;
1335 }
1336
1337 out:
1338 kfree(cmd);
1339
1340 return ret;
1341 }
1342
1343 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1344 u16 action, u8 id, u8 key_type,
1345 u8 key_size, const u8 *key, const u8 *addr,
1346 u32 tx_seq_32, u16 tx_seq_16)
1347 {
1348 struct wl1271_cmd_set_keys *cmd;
1349 int ret = 0;
1350
1351 /* hlid might have already been deleted */
1352 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1353 return 0;
1354
1355 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1356 if (!cmd) {
1357 ret = -ENOMEM;
1358 goto out;
1359 }
1360
1361 cmd->hlid = wlvif->sta.hlid;
1362
1363 if (key_type == KEY_WEP)
1364 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1365 else if (is_broadcast_ether_addr(addr))
1366 cmd->lid_key_type = BROADCAST_LID_TYPE;
1367 else
1368 cmd->lid_key_type = UNICAST_LID_TYPE;
1369
1370 cmd->key_action = cpu_to_le16(action);
1371 cmd->key_size = key_size;
1372 cmd->key_type = key_type;
1373
1374 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1375 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1376
1377 cmd->key_id = id;
1378
1379 if (key_type == KEY_TKIP) {
1380 /*
1381 * We get the key in the following form:
1382 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1383 * but the target is expecting:
1384 * TKIP - RX MIC - TX MIC
1385 */
1386 memcpy(cmd->key, key, 16);
1387 memcpy(cmd->key + 16, key + 24, 8);
1388 memcpy(cmd->key + 24, key + 16, 8);
1389
1390 } else {
1391 memcpy(cmd->key, key, key_size);
1392 }
1393
1394 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1395
1396 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1397 if (ret < 0) {
1398 wl1271_warning("could not set keys");
1399 goto out;
1400 }
1401
1402 out:
1403 kfree(cmd);
1404
1405 return ret;
1406 }
1407
1408 /*
1409 * TODO: merge with sta/ibss into 1 set_key function.
1410 * note there are slight diffs
1411 */
1412 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1413 u16 action, u8 id, u8 key_type,
1414 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1415 u16 tx_seq_16)
1416 {
1417 struct wl1271_cmd_set_keys *cmd;
1418 int ret = 0;
1419 u8 lid_type;
1420
1421 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1422 if (!cmd)
1423 return -ENOMEM;
1424
1425 if (hlid == wlvif->ap.bcast_hlid) {
1426 if (key_type == KEY_WEP)
1427 lid_type = WEP_DEFAULT_LID_TYPE;
1428 else
1429 lid_type = BROADCAST_LID_TYPE;
1430 } else {
1431 lid_type = UNICAST_LID_TYPE;
1432 }
1433
1434 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1435 " hlid: %d", (int)action, (int)id, (int)lid_type,
1436 (int)key_type, (int)hlid);
1437
1438 cmd->lid_key_type = lid_type;
1439 cmd->hlid = hlid;
1440 cmd->key_action = cpu_to_le16(action);
1441 cmd->key_size = key_size;
1442 cmd->key_type = key_type;
1443 cmd->key_id = id;
1444 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1445 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1446
1447 if (key_type == KEY_TKIP) {
1448 /*
1449 * We get the key in the following form:
1450 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1451 * but the target is expecting:
1452 * TKIP - RX MIC - TX MIC
1453 */
1454 memcpy(cmd->key, key, 16);
1455 memcpy(cmd->key + 16, key + 24, 8);
1456 memcpy(cmd->key + 24, key + 16, 8);
1457 } else {
1458 memcpy(cmd->key, key, key_size);
1459 }
1460
1461 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1462
1463 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1464 if (ret < 0) {
1465 wl1271_warning("could not set ap keys");
1466 goto out;
1467 }
1468
1469 out:
1470 kfree(cmd);
1471 return ret;
1472 }
1473
1474 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1475 u8 hlid)
1476 {
1477 struct wl12xx_cmd_set_peer_state *cmd;
1478 int ret = 0;
1479
1480 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1481
1482 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1483 if (!cmd) {
1484 ret = -ENOMEM;
1485 goto out;
1486 }
1487
1488 cmd->hlid = hlid;
1489 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1490
1491 /* wmm param is valid only for station role */
1492 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1493 cmd->wmm = wlvif->wmm_enabled;
1494
1495 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1496 if (ret < 0) {
1497 wl1271_error("failed to send set peer state command");
1498 goto out_free;
1499 }
1500
1501 out_free:
1502 kfree(cmd);
1503
1504 out:
1505 return ret;
1506 }
1507
1508 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1509 struct ieee80211_sta *sta, u8 hlid)
1510 {
1511 struct wl12xx_cmd_add_peer *cmd;
1512 int i, ret;
1513 u32 sta_rates;
1514
1515 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1516
1517 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1518 if (!cmd) {
1519 ret = -ENOMEM;
1520 goto out;
1521 }
1522
1523 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1524 cmd->bss_index = WL1271_AP_BSS_INDEX;
1525 cmd->aid = sta->aid;
1526 cmd->hlid = hlid;
1527 cmd->sp_len = sta->max_sp;
1528 cmd->wmm = sta->wme ? 1 : 0;
1529 cmd->session_id = wl->session_ids[hlid];
1530
1531 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1532 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1533 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1534 WL1271_PSD_UPSD_TRIGGER;
1535 else
1536 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1537 WL1271_PSD_LEGACY;
1538
1539
1540 sta_rates = sta->supp_rates[wlvif->band];
1541 if (sta->ht_cap.ht_supported)
1542 sta_rates |=
1543 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1544 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1545
1546 cmd->supported_rates =
1547 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1548 wlvif->band));
1549
1550 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1551 cmd->supported_rates, sta->uapsd_queues);
1552
1553 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1554 if (ret < 0) {
1555 wl1271_error("failed to initiate cmd add peer");
1556 goto out_free;
1557 }
1558
1559 out_free:
1560 kfree(cmd);
1561
1562 out:
1563 return ret;
1564 }
1565
1566 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid)
1567 {
1568 struct wl12xx_cmd_remove_peer *cmd;
1569 int ret;
1570 bool timeout = false;
1571
1572 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1573
1574 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1575 if (!cmd) {
1576 ret = -ENOMEM;
1577 goto out;
1578 }
1579
1580 cmd->hlid = hlid;
1581 /* We never send a deauth, mac80211 is in charge of this */
1582 cmd->reason_opcode = 0;
1583 cmd->send_deauth_flag = 0;
1584
1585 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1586 if (ret < 0) {
1587 wl1271_error("failed to initiate cmd remove peer");
1588 goto out_free;
1589 }
1590
1591 ret = wl->ops->wait_for_event(wl,
1592 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1593 &timeout);
1594
1595 /*
1596 * We are ok with a timeout here. The event is sometimes not sent
1597 * due to a firmware bug. In case of another error (like SDIO timeout)
1598 * queue a recovery.
1599 */
1600 if (ret)
1601 wl12xx_queue_recovery_work(wl);
1602
1603 out_free:
1604 kfree(cmd);
1605
1606 out:
1607 return ret;
1608 }
1609
1610 static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch)
1611 {
1612 /*
1613 * map the given band/channel to the respective predefined
1614 * bit expected by the fw
1615 */
1616 switch (band) {
1617 case IEEE80211_BAND_2GHZ:
1618 /* channels 1..14 are mapped to 0..13 */
1619 if (ch >= 1 && ch <= 14)
1620 return ch - 1;
1621 break;
1622 case IEEE80211_BAND_5GHZ:
1623 switch (ch) {
1624 case 8 ... 16:
1625 /* channels 8,12,16 are mapped to 18,19,20 */
1626 return 18 + (ch-8)/4;
1627 case 34 ... 48:
1628 /* channels 34,36..48 are mapped to 21..28 */
1629 return 21 + (ch-34)/2;
1630 case 52 ... 64:
1631 /* channels 52,56..64 are mapped to 29..32 */
1632 return 29 + (ch-52)/4;
1633 case 100 ... 140:
1634 /* channels 100,104..140 are mapped to 33..43 */
1635 return 33 + (ch-100)/4;
1636 case 149 ... 165:
1637 /* channels 149,153..165 are mapped to 44..48 */
1638 return 44 + (ch-149)/4;
1639 default:
1640 break;
1641 }
1642 break;
1643 default:
1644 break;
1645 }
1646
1647 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1648 return -1;
1649 }
1650
1651 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1652 enum ieee80211_band band)
1653 {
1654 int ch_bit_idx = 0;
1655
1656 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1657 return;
1658
1659 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1660
1661 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1662 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1663 }
1664
1665 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1666 {
1667 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1668 int ret = 0, i, b, ch_bit_idx;
1669 struct ieee80211_channel *channel;
1670 u32 tmp_ch_bitmap[2];
1671 u16 ch;
1672 struct wiphy *wiphy = wl->hw->wiphy;
1673 struct ieee80211_supported_band *band;
1674 bool timeout = false;
1675
1676 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1677 return 0;
1678
1679 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1680
1681 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap));
1682
1683 for (b = IEEE80211_BAND_2GHZ; b <= IEEE80211_BAND_5GHZ; b++) {
1684 band = wiphy->bands[b];
1685 for (i = 0; i < band->n_channels; i++) {
1686 channel = &band->channels[i];
1687 ch = channel->hw_value;
1688
1689 if (channel->flags & (IEEE80211_CHAN_DISABLED |
1690 IEEE80211_CHAN_RADAR |
1691 IEEE80211_CHAN_NO_IR))
1692 continue;
1693
1694 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1695 if (ch_bit_idx < 0)
1696 continue;
1697
1698 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap);
1699 }
1700 }
1701
1702 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0];
1703 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1];
1704
1705 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1706 goto out;
1707
1708 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1709 if (!cmd) {
1710 ret = -ENOMEM;
1711 goto out;
1712 }
1713
1714 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]);
1715 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]);
1716
1717 wl1271_debug(DEBUG_CMD,
1718 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1719 cmd->ch_bit_map1, cmd->ch_bit_map2);
1720
1721 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1722 if (ret < 0) {
1723 wl1271_error("failed to send reg domain dfs config");
1724 goto out;
1725 }
1726
1727 ret = wl->ops->wait_for_event(wl,
1728 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1729 &timeout);
1730 if (ret < 0 || timeout) {
1731 wl1271_error("reg domain conf %serror",
1732 timeout ? "completion " : "");
1733 ret = timeout ? -ETIMEDOUT : ret;
1734 goto out;
1735 }
1736
1737 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1738 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1739
1740 out:
1741 kfree(cmd);
1742 return ret;
1743 }
1744
1745 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1746 {
1747 struct wl12xx_cmd_config_fwlog *cmd;
1748 int ret = 0;
1749
1750 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1751
1752 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1753 if (!cmd) {
1754 ret = -ENOMEM;
1755 goto out;
1756 }
1757
1758 cmd->logger_mode = wl->conf.fwlog.mode;
1759 cmd->log_severity = wl->conf.fwlog.severity;
1760 cmd->timestamp = wl->conf.fwlog.timestamp;
1761 cmd->output = wl->conf.fwlog.output;
1762 cmd->threshold = wl->conf.fwlog.threshold;
1763
1764 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1765 if (ret < 0) {
1766 wl1271_error("failed to send config firmware logger command");
1767 goto out_free;
1768 }
1769
1770 out_free:
1771 kfree(cmd);
1772
1773 out:
1774 return ret;
1775 }
1776
1777 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1778 {
1779 struct wl12xx_cmd_start_fwlog *cmd;
1780 int ret = 0;
1781
1782 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1783
1784 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1785 if (!cmd) {
1786 ret = -ENOMEM;
1787 goto out;
1788 }
1789
1790 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1791 if (ret < 0) {
1792 wl1271_error("failed to send start firmware logger command");
1793 goto out_free;
1794 }
1795
1796 out_free:
1797 kfree(cmd);
1798
1799 out:
1800 return ret;
1801 }
1802
1803 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1804 {
1805 struct wl12xx_cmd_stop_fwlog *cmd;
1806 int ret = 0;
1807
1808 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1809
1810 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1811 if (!cmd) {
1812 ret = -ENOMEM;
1813 goto out;
1814 }
1815
1816 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1817 if (ret < 0) {
1818 wl1271_error("failed to send stop firmware logger command");
1819 goto out_free;
1820 }
1821
1822 out_free:
1823 kfree(cmd);
1824
1825 out:
1826 return ret;
1827 }
1828
1829 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1830 u8 role_id, enum ieee80211_band band, u8 channel)
1831 {
1832 struct wl12xx_cmd_roc *cmd;
1833 int ret = 0;
1834
1835 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1836
1837 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1838 return -EINVAL;
1839
1840 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1841 if (!cmd) {
1842 ret = -ENOMEM;
1843 goto out;
1844 }
1845
1846 cmd->role_id = role_id;
1847 cmd->channel = channel;
1848 switch (band) {
1849 case IEEE80211_BAND_2GHZ:
1850 cmd->band = WLCORE_BAND_2_4GHZ;
1851 break;
1852 case IEEE80211_BAND_5GHZ:
1853 cmd->band = WLCORE_BAND_5GHZ;
1854 break;
1855 default:
1856 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1857 ret = -EINVAL;
1858 goto out_free;
1859 }
1860
1861
1862 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1863 if (ret < 0) {
1864 wl1271_error("failed to send ROC command");
1865 goto out_free;
1866 }
1867
1868 out_free:
1869 kfree(cmd);
1870
1871 out:
1872 return ret;
1873 }
1874
1875 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1876 {
1877 struct wl12xx_cmd_croc *cmd;
1878 int ret = 0;
1879
1880 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1881
1882 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1883 if (!cmd) {
1884 ret = -ENOMEM;
1885 goto out;
1886 }
1887 cmd->role_id = role_id;
1888
1889 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1890 sizeof(*cmd), 0);
1891 if (ret < 0) {
1892 wl1271_error("failed to send ROC command");
1893 goto out_free;
1894 }
1895
1896 out_free:
1897 kfree(cmd);
1898
1899 out:
1900 return ret;
1901 }
1902
1903 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1904 enum ieee80211_band band, u8 channel)
1905 {
1906 int ret = 0;
1907
1908 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1909 return 0;
1910
1911 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1912 if (ret < 0)
1913 goto out;
1914
1915 __set_bit(role_id, wl->roc_map);
1916 out:
1917 return ret;
1918 }
1919
1920 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1921 {
1922 int ret = 0;
1923
1924 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1925 return 0;
1926
1927 ret = wl12xx_cmd_croc(wl, role_id);
1928 if (ret < 0)
1929 goto out;
1930
1931 __clear_bit(role_id, wl->roc_map);
1932
1933 /*
1934 * Rearm the tx watchdog when removing the last ROC. This prevents
1935 * recoveries due to just finished ROCs - when Tx hasn't yet had
1936 * a chance to get out.
1937 */
1938 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1939 wl12xx_rearm_tx_watchdog_locked(wl);
1940 out:
1941 return ret;
1942 }
1943
1944 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1945 {
1946 struct wl12xx_cmd_stop_channel_switch *cmd;
1947 int ret;
1948
1949 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1950
1951 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1952 if (!cmd) {
1953 ret = -ENOMEM;
1954 goto out;
1955 }
1956
1957 cmd->role_id = wlvif->role_id;
1958
1959 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1960 if (ret < 0) {
1961 wl1271_error("failed to stop channel switch command");
1962 goto out_free;
1963 }
1964
1965 out_free:
1966 kfree(cmd);
1967
1968 out:
1969 return ret;
1970 }
1971
1972 /* start dev role and roc on its channel */
1973 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1974 enum ieee80211_band band, int channel)
1975 {
1976 int ret;
1977
1978 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1979 wlvif->bss_type == BSS_TYPE_IBSS)))
1980 return -EINVAL;
1981
1982 ret = wl12xx_cmd_role_enable(wl,
1983 wl12xx_wlvif_to_vif(wlvif)->addr,
1984 WL1271_ROLE_DEVICE,
1985 &wlvif->dev_role_id);
1986 if (ret < 0)
1987 goto out;
1988
1989 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
1990 if (ret < 0)
1991 goto out_disable;
1992
1993 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
1994 if (ret < 0)
1995 goto out_stop;
1996
1997 return 0;
1998
1999 out_stop:
2000 wl12xx_cmd_role_stop_dev(wl, wlvif);
2001 out_disable:
2002 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2003 out:
2004 return ret;
2005 }
2006
2007 /* croc dev hlid, and stop the role */
2008 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2009 {
2010 int ret;
2011
2012 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2013 wlvif->bss_type == BSS_TYPE_IBSS)))
2014 return -EINVAL;
2015
2016 /* flush all pending packets */
2017 ret = wlcore_tx_work_locked(wl);
2018 if (ret < 0)
2019 goto out;
2020
2021 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2022 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2023 if (ret < 0)
2024 goto out;
2025 }
2026
2027 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2028 if (ret < 0)
2029 goto out;
2030
2031 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2032 if (ret < 0)
2033 goto out;
2034
2035 out:
2036 return ret;
2037 }
Linux with added FPC-III support