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