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33153565ad6261ed908c8bb4c9a6f2ece45207cb
[deliverable/linux.git] / drivers / net / wireless / ti / wlcore / cmd.c
1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009-2010 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/spi/spi.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ieee80211.h>
29 #include <linux/slab.h>
30
31 #include "wlcore.h"
32 #include "debug.h"
33 #include "io.h"
34 #include "acx.h"
35 #include "wl12xx_80211.h"
36 #include "cmd.h"
37 #include "event.h"
38 #include "tx.h"
39 #include "hw_ops.h"
40
41 #define WL1271_CMD_FAST_POLL_COUNT 50
42 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20
43
44 /*
45 * send command to firmware
46 *
47 * @wl: wl struct
48 * @id: command id
49 * @buf: buffer containing the command, must work with dma
50 * @len: length of the buffer
51 * return the cmd status code on success.
52 */
53 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
54 size_t len, size_t res_len)
55 {
56 struct wl1271_cmd_header *cmd;
57 unsigned long timeout;
58 u32 intr;
59 int ret;
60 u16 status;
61 u16 poll_count = 0;
62
63 if (unlikely(wl->state == WLCORE_STATE_RESTARTING &&
64 id != CMD_STOP_FWLOGGER))
65 return -EIO;
66
67 if (WARN_ON_ONCE(len < sizeof(*cmd)))
68 return -EIO;
69
70 cmd = buf;
71 cmd->id = cpu_to_le16(id);
72 cmd->status = 0;
73
74 WARN_ON(len % 4 != 0);
75 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
76
77 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
78 if (ret < 0)
79 return ret;
80
81 /*
82 * TODO: we just need this because one bit is in a different
83 * place. Is there any better way?
84 */
85 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
86 if (ret < 0)
87 return ret;
88
89 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
90
91 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
92 if (ret < 0)
93 return ret;
94
95 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
96 if (time_after(jiffies, timeout)) {
97 wl1271_error("command complete timeout");
98 return -ETIMEDOUT;
99 }
100
101 poll_count++;
102 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
103 udelay(10);
104 else
105 msleep(1);
106
107 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
108 if (ret < 0)
109 return ret;
110 }
111
112 /* read back the status code of the command */
113 if (res_len == 0)
114 res_len = sizeof(struct wl1271_cmd_header);
115
116 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
117 if (ret < 0)
118 return ret;
119
120 status = le16_to_cpu(cmd->status);
121
122 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
123 WL1271_ACX_INTR_CMD_COMPLETE);
124 if (ret < 0)
125 return ret;
126
127 return status;
128 }
129
130 /*
131 * send command to fw and return cmd status on success
132 * valid_rets contains a bitmap of allowed error codes
133 */
134 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf,
135 size_t len, size_t res_len,
136 unsigned long valid_rets)
137 {
138 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
139
140 if (ret < 0)
141 goto fail;
142
143 /* success is always a valid status */
144 valid_rets |= BIT(CMD_STATUS_SUCCESS);
145
146 if (ret >= MAX_COMMAND_STATUS ||
147 !test_bit(ret, &valid_rets)) {
148 wl1271_error("command execute failure %d", ret);
149 ret = -EIO;
150 goto fail;
151 }
152 return ret;
153 fail:
154 wl12xx_queue_recovery_work(wl);
155 return ret;
156 }
157
158 /*
159 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
160 * return 0 on success.
161 */
162 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
163 size_t res_len)
164 {
165 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
166
167 if (ret < 0)
168 return ret;
169 return 0;
170 }
171 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
172
173 /*
174 * Poll the mailbox event field until any of the bits in the mask is set or a
175 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
176 */
177 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
178 u32 mask, bool *timeout)
179 {
180 u32 *events_vector;
181 u32 event;
182 unsigned long timeout_time;
183 u16 poll_count = 0;
184 int ret = 0;
185
186 *timeout = false;
187
188 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
189 if (!events_vector)
190 return -ENOMEM;
191
192 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
193
194 do {
195 if (time_after(jiffies, timeout_time)) {
196 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
197 (int)mask);
198 *timeout = true;
199 goto out;
200 }
201
202 poll_count++;
203 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
204 usleep_range(50, 51);
205 else
206 usleep_range(1000, 5000);
207
208 /* read from both event fields */
209 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
210 sizeof(*events_vector), false);
211 if (ret < 0)
212 goto out;
213
214 event = *events_vector & mask;
215
216 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
217 sizeof(*events_vector), false);
218 if (ret < 0)
219 goto out;
220
221 event |= *events_vector & mask;
222 } while (!event);
223
224 out:
225 kfree(events_vector);
226 return ret;
227 }
228 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
229
230 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
231 u8 *role_id)
232 {
233 struct wl12xx_cmd_role_enable *cmd;
234 int ret;
235
236 wl1271_debug(DEBUG_CMD, "cmd role enable");
237
238 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
239 return -EBUSY;
240
241 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
242 if (!cmd) {
243 ret = -ENOMEM;
244 goto out;
245 }
246
247 /* get role id */
248 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
249 if (cmd->role_id >= WL12XX_MAX_ROLES) {
250 ret = -EBUSY;
251 goto out_free;
252 }
253
254 memcpy(cmd->mac_address, addr, ETH_ALEN);
255 cmd->role_type = role_type;
256
257 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
258 if (ret < 0) {
259 wl1271_error("failed to initiate cmd role enable");
260 goto out_free;
261 }
262
263 __set_bit(cmd->role_id, wl->roles_map);
264 *role_id = cmd->role_id;
265
266 out_free:
267 kfree(cmd);
268
269 out:
270 return ret;
271 }
272
273 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
274 {
275 struct wl12xx_cmd_role_disable *cmd;
276 int ret;
277
278 wl1271_debug(DEBUG_CMD, "cmd role disable");
279
280 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
281 return -ENOENT;
282
283 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
284 if (!cmd) {
285 ret = -ENOMEM;
286 goto out;
287 }
288 cmd->role_id = *role_id;
289
290 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
291 if (ret < 0) {
292 wl1271_error("failed to initiate cmd role disable");
293 goto out_free;
294 }
295
296 __clear_bit(*role_id, wl->roles_map);
297 *role_id = WL12XX_INVALID_ROLE_ID;
298
299 out_free:
300 kfree(cmd);
301
302 out:
303 return ret;
304 }
305
306 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
307 {
308 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
309 wl->session_ids[hlid] = 0;
310
311 wl->session_ids[hlid]++;
312
313 return wl->session_ids[hlid];
314 }
315
316 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
317 {
318 unsigned long flags;
319 u8 link = find_first_zero_bit(wl->links_map, wl->num_links);
320 if (link >= wl->num_links)
321 return -EBUSY;
322
323 wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
324
325 /* these bits are used by op_tx */
326 spin_lock_irqsave(&wl->wl_lock, flags);
327 __set_bit(link, wl->links_map);
328 __set_bit(link, wlvif->links_map);
329 spin_unlock_irqrestore(&wl->wl_lock, flags);
330
331 /*
332 * take the last "freed packets" value from the current FW status.
333 * on recovery, we might not have fw_status yet, and
334 * tx_lnk_free_pkts will be NULL. check for it.
335 */
336 if (wl->fw_status->counters.tx_lnk_free_pkts)
337 wl->links[link].prev_freed_pkts =
338 wl->fw_status->counters.tx_lnk_free_pkts[link];
339 wl->links[link].wlvif = wlvif;
340
341 /*
342 * Take saved value for total freed packets from wlvif, in case this is
343 * recovery/resume
344 */
345 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
346 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
347
348 *hlid = link;
349
350 wl->active_link_count++;
351 return 0;
352 }
353
354 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
355 {
356 unsigned long flags;
357
358 if (*hlid == WL12XX_INVALID_LINK_ID)
359 return;
360
361 /* these bits are used by op_tx */
362 spin_lock_irqsave(&wl->wl_lock, flags);
363 __clear_bit(*hlid, wl->links_map);
364 __clear_bit(*hlid, wlvif->links_map);
365 spin_unlock_irqrestore(&wl->wl_lock, flags);
366
367 wl->links[*hlid].allocated_pkts = 0;
368 wl->links[*hlid].prev_freed_pkts = 0;
369 wl->links[*hlid].ba_bitmap = 0;
370 eth_zero_addr(wl->links[*hlid].addr);
371
372 /*
373 * At this point op_tx() will not add more packets to the queues. We
374 * can purge them.
375 */
376 wl1271_tx_reset_link_queues(wl, *hlid);
377 wl->links[*hlid].wlvif = NULL;
378
379 if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
380 *hlid == wlvif->ap.bcast_hlid) {
381 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
382 /*
383 * save the total freed packets in the wlvif, in case this is
384 * recovery or suspend
385 */
386 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
387
388 /*
389 * increment the initial seq number on recovery to account for
390 * transmitted packets that we haven't yet got in the FW status
391 */
392 if (wlvif->encryption_type == KEY_GEM)
393 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
394
395 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
396 wlvif->total_freed_pkts += sqn_padding;
397 }
398
399 wl->links[*hlid].total_freed_pkts = 0;
400
401 *hlid = WL12XX_INVALID_LINK_ID;
402 wl->active_link_count--;
403 WARN_ON_ONCE(wl->active_link_count < 0);
404 }
405
406 u8 wlcore_get_native_channel_type(u8 nl_channel_type)
407 {
408 switch (nl_channel_type) {
409 case NL80211_CHAN_NO_HT:
410 return WLCORE_CHAN_NO_HT;
411 case NL80211_CHAN_HT20:
412 return WLCORE_CHAN_HT20;
413 case NL80211_CHAN_HT40MINUS:
414 return WLCORE_CHAN_HT40MINUS;
415 case NL80211_CHAN_HT40PLUS:
416 return WLCORE_CHAN_HT40PLUS;
417 default:
418 WARN_ON(1);
419 return WLCORE_CHAN_NO_HT;
420 }
421 }
422 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
423
424 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
425 struct wl12xx_vif *wlvif,
426 enum nl80211_band band,
427 int channel)
428 {
429 struct wl12xx_cmd_role_start *cmd;
430 int ret;
431
432 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
433 if (!cmd) {
434 ret = -ENOMEM;
435 goto out;
436 }
437
438 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
439
440 cmd->role_id = wlvif->dev_role_id;
441 if (band == NL80211_BAND_5GHZ)
442 cmd->band = WLCORE_BAND_5GHZ;
443 cmd->channel = channel;
444
445 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
446 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
447 if (ret)
448 goto out_free;
449 }
450 cmd->device.hlid = wlvif->dev_hlid;
451 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
452
453 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
454 cmd->role_id, cmd->device.hlid, cmd->device.session);
455
456 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
457 if (ret < 0) {
458 wl1271_error("failed to initiate cmd role enable");
459 goto err_hlid;
460 }
461
462 goto out_free;
463
464 err_hlid:
465 /* clear links on error */
466 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
467
468 out_free:
469 kfree(cmd);
470
471 out:
472 return ret;
473 }
474
475 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
476 struct wl12xx_vif *wlvif)
477 {
478 struct wl12xx_cmd_role_stop *cmd;
479 int ret;
480
481 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
482 return -EINVAL;
483
484 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
485 if (!cmd) {
486 ret = -ENOMEM;
487 goto out;
488 }
489
490 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
491
492 cmd->role_id = wlvif->dev_role_id;
493 cmd->disc_type = DISCONNECT_IMMEDIATE;
494 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
495
496 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
497 if (ret < 0) {
498 wl1271_error("failed to initiate cmd role stop");
499 goto out_free;
500 }
501
502 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
503
504 out_free:
505 kfree(cmd);
506
507 out:
508 return ret;
509 }
510
511 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
512 {
513 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
514 struct wl12xx_cmd_role_start *cmd;
515 u32 supported_rates;
516 int ret;
517
518 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
519 if (!cmd) {
520 ret = -ENOMEM;
521 goto out;
522 }
523
524 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
525
526 cmd->role_id = wlvif->role_id;
527 if (wlvif->band == NL80211_BAND_5GHZ)
528 cmd->band = WLCORE_BAND_5GHZ;
529 cmd->channel = wlvif->channel;
530 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
531 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
532 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
533 cmd->sta.ssid_len = wlvif->ssid_len;
534 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
535 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
536
537 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
538 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
539 if (wlvif->p2p)
540 supported_rates &= ~CONF_TX_CCK_RATES;
541
542 cmd->sta.local_rates = cpu_to_le32(supported_rates);
543
544 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
545
546 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
547 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
548 if (ret)
549 goto out_free;
550 }
551 cmd->sta.hlid = wlvif->sta.hlid;
552 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
553 /*
554 * We don't have the correct remote rates in this stage. The
555 * rates will be reconfigured later, after association, if the
556 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
557 * we can do, so use all supported_rates here.
558 */
559 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
560
561 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
562 "basic_rate_set: 0x%x, remote_rates: 0x%x",
563 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
564 wlvif->basic_rate_set, wlvif->rate_set);
565
566 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
567 if (ret < 0) {
568 wl1271_error("failed to initiate cmd role start sta");
569 goto err_hlid;
570 }
571
572 wlvif->sta.role_chan_type = wlvif->channel_type;
573 goto out_free;
574
575 err_hlid:
576 /* clear links on error. */
577 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
578
579 out_free:
580 kfree(cmd);
581
582 out:
583 return ret;
584 }
585
586 /* use this function to stop ibss as well */
587 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
588 {
589 struct wl12xx_cmd_role_stop *cmd;
590 int ret;
591
592 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
593 return -EINVAL;
594
595 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
596 if (!cmd) {
597 ret = -ENOMEM;
598 goto out;
599 }
600
601 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
602
603 cmd->role_id = wlvif->role_id;
604 cmd->disc_type = DISCONNECT_IMMEDIATE;
605 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
606
607 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
608 if (ret < 0) {
609 wl1271_error("failed to initiate cmd role stop sta");
610 goto out_free;
611 }
612
613 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
614
615 out_free:
616 kfree(cmd);
617
618 out:
619 return ret;
620 }
621
622 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
623 {
624 struct wl12xx_cmd_role_start *cmd;
625 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
626 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
627 u32 supported_rates;
628 int ret;
629
630 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
631
632 /* trying to use hidden SSID with an old hostapd version */
633 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
634 wl1271_error("got a null SSID from beacon/bss");
635 ret = -EINVAL;
636 goto out;
637 }
638
639 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
640 if (!cmd) {
641 ret = -ENOMEM;
642 goto out;
643 }
644
645 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
646 if (ret < 0)
647 goto out_free;
648
649 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
650 if (ret < 0)
651 goto out_free_global;
652
653 /* use the previous security seq, if this is a recovery/resume */
654 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
655 wlvif->total_freed_pkts;
656
657 cmd->role_id = wlvif->role_id;
658 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
659 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
660 cmd->ap.global_hlid = wlvif->ap.global_hlid;
661 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
662 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
663 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
664 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
665 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
666 cmd->ap.dtim_interval = bss_conf->dtim_period;
667 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
668 /* FIXME: Change when adding DFS */
669 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
670 cmd->ap.wmm = wlvif->wmm_enabled;
671 cmd->channel = wlvif->channel;
672 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
673
674 if (!bss_conf->hidden_ssid) {
675 /* take the SSID from the beacon for backward compatibility */
676 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
677 cmd->ap.ssid_len = wlvif->ssid_len;
678 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
679 } else {
680 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
681 cmd->ap.ssid_len = bss_conf->ssid_len;
682 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
683 }
684
685 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
686 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
687 if (wlvif->p2p)
688 supported_rates &= ~CONF_TX_CCK_RATES;
689
690 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
691 supported_rates);
692
693 cmd->ap.local_rates = cpu_to_le32(supported_rates);
694
695 switch (wlvif->band) {
696 case NL80211_BAND_2GHZ:
697 cmd->band = WLCORE_BAND_2_4GHZ;
698 break;
699 case NL80211_BAND_5GHZ:
700 cmd->band = WLCORE_BAND_5GHZ;
701 break;
702 default:
703 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
704 cmd->band = WLCORE_BAND_2_4GHZ;
705 break;
706 }
707
708 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
709 if (ret < 0) {
710 wl1271_error("failed to initiate cmd role start ap");
711 goto out_free_bcast;
712 }
713
714 goto out_free;
715
716 out_free_bcast:
717 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
718
719 out_free_global:
720 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
721
722 out_free:
723 kfree(cmd);
724
725 out:
726 return ret;
727 }
728
729 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
730 {
731 struct wl12xx_cmd_role_stop *cmd;
732 int ret;
733
734 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
735 if (!cmd) {
736 ret = -ENOMEM;
737 goto out;
738 }
739
740 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
741
742 cmd->role_id = wlvif->role_id;
743
744 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
745 if (ret < 0) {
746 wl1271_error("failed to initiate cmd role stop ap");
747 goto out_free;
748 }
749
750 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
751 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
752
753 out_free:
754 kfree(cmd);
755
756 out:
757 return ret;
758 }
759
760 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
761 {
762 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
763 struct wl12xx_cmd_role_start *cmd;
764 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
765 int ret;
766
767 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
768 if (!cmd) {
769 ret = -ENOMEM;
770 goto out;
771 }
772
773 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
774
775 cmd->role_id = wlvif->role_id;
776 if (wlvif->band == NL80211_BAND_5GHZ)
777 cmd->band = WLCORE_BAND_5GHZ;
778 cmd->channel = wlvif->channel;
779 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
780 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
781 cmd->ibss.dtim_interval = bss_conf->dtim_period;
782 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
783 cmd->ibss.ssid_len = wlvif->ssid_len;
784 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
785 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
786 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
787
788 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
789 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
790 if (ret)
791 goto out_free;
792 }
793 cmd->ibss.hlid = wlvif->sta.hlid;
794 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
795
796 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
797 "basic_rate_set: 0x%x, remote_rates: 0x%x",
798 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
799 wlvif->basic_rate_set, wlvif->rate_set);
800
801 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
802 vif->bss_conf.bssid);
803
804 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
805 if (ret < 0) {
806 wl1271_error("failed to initiate cmd role enable");
807 goto err_hlid;
808 }
809
810 goto out_free;
811
812 err_hlid:
813 /* clear links on error. */
814 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
815
816 out_free:
817 kfree(cmd);
818
819 out:
820 return ret;
821 }
822
823
824 /**
825 * send test command to firmware
826 *
827 * @wl: wl struct
828 * @buf: buffer containing the command, with all headers, must work with dma
829 * @len: length of the buffer
830 * @answer: is answer needed
831 */
832 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
833 {
834 int ret;
835 size_t res_len = 0;
836
837 wl1271_debug(DEBUG_CMD, "cmd test");
838
839 if (answer)
840 res_len = buf_len;
841
842 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
843
844 if (ret < 0) {
845 wl1271_warning("TEST command failed");
846 return ret;
847 }
848
849 return ret;
850 }
851 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
852
853 /**
854 * read acx from firmware
855 *
856 * @wl: wl struct
857 * @id: acx id
858 * @buf: buffer for the response, including all headers, must work with dma
859 * @len: length of buf
860 */
861 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
862 size_t cmd_len, size_t res_len)
863 {
864 struct acx_header *acx = buf;
865 int ret;
866
867 wl1271_debug(DEBUG_CMD, "cmd interrogate");
868
869 acx->id = cpu_to_le16(id);
870
871 /* response payload length, does not include any headers */
872 acx->len = cpu_to_le16(res_len - sizeof(*acx));
873
874 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
875 if (ret < 0)
876 wl1271_error("INTERROGATE command failed");
877
878 return ret;
879 }
880
881 /**
882 * write acx value to firmware
883 *
884 * @wl: wl struct
885 * @id: acx id
886 * @buf: buffer containing acx, including all headers, must work with dma
887 * @len: length of buf
888 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
889 * return the cmd status on success.
890 */
891 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
892 size_t len, unsigned long valid_rets)
893 {
894 struct acx_header *acx = buf;
895 int ret;
896
897 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
898
899 if (WARN_ON_ONCE(len < sizeof(*acx)))
900 return -EIO;
901
902 acx->id = cpu_to_le16(id);
903
904 /* payload length, does not include any headers */
905 acx->len = cpu_to_le16(len - sizeof(*acx));
906
907 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
908 valid_rets);
909 if (ret < 0) {
910 wl1271_warning("CONFIGURE command NOK");
911 return ret;
912 }
913
914 return ret;
915 }
916
917 /*
918 * wrapper for wlcore_cmd_configure that accepts only success status.
919 * return 0 on success
920 */
921 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
922 {
923 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
924
925 if (ret < 0)
926 return ret;
927 return 0;
928 }
929 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
930
931 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
932 {
933 struct cmd_enabledisable_path *cmd;
934 int ret;
935 u16 cmd_rx, cmd_tx;
936
937 wl1271_debug(DEBUG_CMD, "cmd data path");
938
939 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
940 if (!cmd) {
941 ret = -ENOMEM;
942 goto out;
943 }
944
945 /* the channel here is only used for calibration, so hardcoded to 1 */
946 cmd->channel = 1;
947
948 if (enable) {
949 cmd_rx = CMD_ENABLE_RX;
950 cmd_tx = CMD_ENABLE_TX;
951 } else {
952 cmd_rx = CMD_DISABLE_RX;
953 cmd_tx = CMD_DISABLE_TX;
954 }
955
956 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
957 if (ret < 0) {
958 wl1271_error("rx %s cmd for channel %d failed",
959 enable ? "start" : "stop", cmd->channel);
960 goto out;
961 }
962
963 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
964 enable ? "start" : "stop", cmd->channel);
965
966 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
967 if (ret < 0) {
968 wl1271_error("tx %s cmd for channel %d failed",
969 enable ? "start" : "stop", cmd->channel);
970 goto out;
971 }
972
973 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
974 enable ? "start" : "stop", cmd->channel);
975
976 out:
977 kfree(cmd);
978 return ret;
979 }
980 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
981
982 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
983 u8 ps_mode, u16 auto_ps_timeout)
984 {
985 struct wl1271_cmd_ps_params *ps_params = NULL;
986 int ret = 0;
987
988 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
989
990 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
991 if (!ps_params) {
992 ret = -ENOMEM;
993 goto out;
994 }
995
996 ps_params->role_id = wlvif->role_id;
997 ps_params->ps_mode = ps_mode;
998 ps_params->auto_ps_timeout = auto_ps_timeout;
999
1000 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1001 sizeof(*ps_params), 0);
1002 if (ret < 0) {
1003 wl1271_error("cmd set_ps_mode failed");
1004 goto out;
1005 }
1006
1007 out:
1008 kfree(ps_params);
1009 return ret;
1010 }
1011
1012 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1013 u16 template_id, void *buf, size_t buf_len,
1014 int index, u32 rates)
1015 {
1016 struct wl1271_cmd_template_set *cmd;
1017 int ret = 0;
1018
1019 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1020 template_id, role_id);
1021
1022 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1023 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1024
1025 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1026 if (!cmd) {
1027 ret = -ENOMEM;
1028 goto out;
1029 }
1030
1031 /* during initialization wlvif is NULL */
1032 cmd->role_id = role_id;
1033 cmd->len = cpu_to_le16(buf_len);
1034 cmd->template_type = template_id;
1035 cmd->enabled_rates = cpu_to_le32(rates);
1036 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1037 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1038 cmd->index = index;
1039
1040 if (buf)
1041 memcpy(cmd->template_data, buf, buf_len);
1042
1043 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1044 if (ret < 0) {
1045 wl1271_warning("cmd set_template failed: %d", ret);
1046 goto out_free;
1047 }
1048
1049 out_free:
1050 kfree(cmd);
1051
1052 out:
1053 return ret;
1054 }
1055
1056 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1057 {
1058 struct sk_buff *skb = NULL;
1059 int size;
1060 void *ptr;
1061 int ret = -ENOMEM;
1062
1063
1064 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1065 size = sizeof(struct wl12xx_null_data_template);
1066 ptr = NULL;
1067 } else {
1068 skb = ieee80211_nullfunc_get(wl->hw,
1069 wl12xx_wlvif_to_vif(wlvif));
1070 if (!skb)
1071 goto out;
1072 size = skb->len;
1073 ptr = skb->data;
1074 }
1075
1076 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1077 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1078 wlvif->basic_rate);
1079
1080 out:
1081 dev_kfree_skb(skb);
1082 if (ret)
1083 wl1271_warning("cmd buld null data failed %d", ret);
1084
1085 return ret;
1086
1087 }
1088
1089 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1090 struct wl12xx_vif *wlvif)
1091 {
1092 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1093 struct sk_buff *skb = NULL;
1094 int ret = -ENOMEM;
1095
1096 skb = ieee80211_nullfunc_get(wl->hw, vif);
1097 if (!skb)
1098 goto out;
1099
1100 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1101 skb->data, skb->len,
1102 wlvif->sta.klv_template_id,
1103 wlvif->basic_rate);
1104
1105 out:
1106 dev_kfree_skb(skb);
1107 if (ret)
1108 wl1271_warning("cmd build klv null data failed %d", ret);
1109
1110 return ret;
1111
1112 }
1113
1114 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1115 u16 aid)
1116 {
1117 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1118 struct sk_buff *skb;
1119 int ret = 0;
1120
1121 skb = ieee80211_pspoll_get(wl->hw, vif);
1122 if (!skb)
1123 goto out;
1124
1125 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1126 CMD_TEMPL_PS_POLL, skb->data,
1127 skb->len, 0, wlvif->basic_rate_set);
1128
1129 out:
1130 dev_kfree_skb(skb);
1131 return ret;
1132 }
1133
1134 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1135 u8 role_id, u8 band,
1136 const u8 *ssid, size_t ssid_len,
1137 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1138 size_t ie1_len, bool sched_scan)
1139 {
1140 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1141 struct sk_buff *skb;
1142 int ret;
1143 u32 rate;
1144 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1145 u16 template_id_5 = wl->scan_templ_id_5;
1146
1147 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1148
1149 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1150 ie0_len + ie1_len);
1151 if (!skb) {
1152 ret = -ENOMEM;
1153 goto out;
1154 }
1155 if (ie0_len)
1156 memcpy(skb_put(skb, ie0_len), ie0, ie0_len);
1157 if (ie1_len)
1158 memcpy(skb_put(skb, ie1_len), ie1, ie1_len);
1159
1160 if (sched_scan &&
1161 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1162 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1163 template_id_5 = wl->sched_scan_templ_id_5;
1164 }
1165
1166 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1167 if (band == NL80211_BAND_2GHZ)
1168 ret = wl1271_cmd_template_set(wl, role_id,
1169 template_id_2_4,
1170 skb->data, skb->len, 0, rate);
1171 else
1172 ret = wl1271_cmd_template_set(wl, role_id,
1173 template_id_5,
1174 skb->data, skb->len, 0, rate);
1175
1176 out:
1177 dev_kfree_skb(skb);
1178 return ret;
1179 }
1180 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1181
1182 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1183 struct wl12xx_vif *wlvif,
1184 struct sk_buff *skb)
1185 {
1186 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1187 int ret;
1188 u32 rate;
1189
1190 if (!skb)
1191 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1192 if (!skb)
1193 goto out;
1194
1195 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1196
1197 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1198 if (wlvif->band == NL80211_BAND_2GHZ)
1199 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1200 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1201 skb->data, skb->len, 0, rate);
1202 else
1203 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1204 CMD_TEMPL_CFG_PROBE_REQ_5,
1205 skb->data, skb->len, 0, rate);
1206
1207 if (ret < 0)
1208 wl1271_error("Unable to set ap probe request template.");
1209
1210 out:
1211 return skb;
1212 }
1213
1214 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1215 {
1216 int ret, extra = 0;
1217 u16 fc;
1218 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1219 struct sk_buff *skb;
1220 struct wl12xx_arp_rsp_template *tmpl;
1221 struct ieee80211_hdr_3addr *hdr;
1222 struct arphdr *arp_hdr;
1223
1224 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1225 WL1271_EXTRA_SPACE_MAX);
1226 if (!skb) {
1227 wl1271_error("failed to allocate buffer for arp rsp template");
1228 return -ENOMEM;
1229 }
1230
1231 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1232
1233 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl));
1234 memset(tmpl, 0, sizeof(*tmpl));
1235
1236 /* llc layer */
1237 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1238 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1239
1240 /* arp header */
1241 arp_hdr = &tmpl->arp_hdr;
1242 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1243 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1244 arp_hdr->ar_hln = ETH_ALEN;
1245 arp_hdr->ar_pln = 4;
1246 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1247
1248 /* arp payload */
1249 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1250 tmpl->sender_ip = wlvif->ip_addr;
1251
1252 /* encryption space */
1253 switch (wlvif->encryption_type) {
1254 case KEY_TKIP:
1255 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1256 extra = WL1271_EXTRA_SPACE_TKIP;
1257 break;
1258 case KEY_AES:
1259 extra = WL1271_EXTRA_SPACE_AES;
1260 break;
1261 case KEY_NONE:
1262 case KEY_WEP:
1263 case KEY_GEM:
1264 extra = 0;
1265 break;
1266 default:
1267 wl1271_warning("Unknown encryption type: %d",
1268 wlvif->encryption_type);
1269 ret = -EINVAL;
1270 goto out;
1271 }
1272
1273 if (extra) {
1274 u8 *space = skb_push(skb, extra);
1275 memset(space, 0, extra);
1276 }
1277
1278 /* QoS header - BE */
1279 if (wlvif->sta.qos)
1280 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1281
1282 /* mac80211 header */
1283 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
1284 memset(hdr, 0, sizeof(*hdr));
1285 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1286 if (wlvif->sta.qos)
1287 fc |= IEEE80211_STYPE_QOS_DATA;
1288 else
1289 fc |= IEEE80211_STYPE_DATA;
1290 if (wlvif->encryption_type != KEY_NONE)
1291 fc |= IEEE80211_FCTL_PROTECTED;
1292
1293 hdr->frame_control = cpu_to_le16(fc);
1294 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1295 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1296 eth_broadcast_addr(hdr->addr3);
1297
1298 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1299 skb->data, skb->len, 0,
1300 wlvif->basic_rate);
1301 out:
1302 dev_kfree_skb(skb);
1303 return ret;
1304 }
1305
1306 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1307 {
1308 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1309 struct ieee80211_qos_hdr template;
1310
1311 memset(&template, 0, sizeof(template));
1312
1313 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1314 memcpy(template.addr2, vif->addr, ETH_ALEN);
1315 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1316
1317 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1318 IEEE80211_STYPE_QOS_NULLFUNC |
1319 IEEE80211_FCTL_TODS);
1320
1321 /* FIXME: not sure what priority to use here */
1322 template.qos_ctrl = cpu_to_le16(0);
1323
1324 return wl1271_cmd_template_set(wl, wlvif->role_id,
1325 CMD_TEMPL_QOS_NULL_DATA, &template,
1326 sizeof(template), 0,
1327 wlvif->basic_rate);
1328 }
1329
1330 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1331 {
1332 struct wl1271_cmd_set_keys *cmd;
1333 int ret = 0;
1334
1335 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1336
1337 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1338 if (!cmd) {
1339 ret = -ENOMEM;
1340 goto out;
1341 }
1342
1343 cmd->hlid = hlid;
1344 cmd->key_id = id;
1345 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1346 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1347 cmd->key_type = KEY_WEP;
1348
1349 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1350 if (ret < 0) {
1351 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1352 goto out;
1353 }
1354
1355 out:
1356 kfree(cmd);
1357
1358 return ret;
1359 }
1360
1361 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1362 u16 action, u8 id, u8 key_type,
1363 u8 key_size, const u8 *key, const u8 *addr,
1364 u32 tx_seq_32, u16 tx_seq_16)
1365 {
1366 struct wl1271_cmd_set_keys *cmd;
1367 int ret = 0;
1368
1369 /* hlid might have already been deleted */
1370 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1371 return 0;
1372
1373 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1374 if (!cmd) {
1375 ret = -ENOMEM;
1376 goto out;
1377 }
1378
1379 cmd->hlid = wlvif->sta.hlid;
1380
1381 if (key_type == KEY_WEP)
1382 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1383 else if (is_broadcast_ether_addr(addr))
1384 cmd->lid_key_type = BROADCAST_LID_TYPE;
1385 else
1386 cmd->lid_key_type = UNICAST_LID_TYPE;
1387
1388 cmd->key_action = cpu_to_le16(action);
1389 cmd->key_size = key_size;
1390 cmd->key_type = key_type;
1391
1392 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1393 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1394
1395 cmd->key_id = id;
1396
1397 if (key_type == KEY_TKIP) {
1398 /*
1399 * We get the key in the following form:
1400 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1401 * but the target is expecting:
1402 * TKIP - RX MIC - TX MIC
1403 */
1404 memcpy(cmd->key, key, 16);
1405 memcpy(cmd->key + 16, key + 24, 8);
1406 memcpy(cmd->key + 24, key + 16, 8);
1407
1408 } else {
1409 memcpy(cmd->key, key, key_size);
1410 }
1411
1412 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1413
1414 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1415 if (ret < 0) {
1416 wl1271_warning("could not set keys");
1417 goto out;
1418 }
1419
1420 out:
1421 kfree(cmd);
1422
1423 return ret;
1424 }
1425
1426 /*
1427 * TODO: merge with sta/ibss into 1 set_key function.
1428 * note there are slight diffs
1429 */
1430 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1431 u16 action, u8 id, u8 key_type,
1432 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1433 u16 tx_seq_16)
1434 {
1435 struct wl1271_cmd_set_keys *cmd;
1436 int ret = 0;
1437 u8 lid_type;
1438
1439 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1440 if (!cmd)
1441 return -ENOMEM;
1442
1443 if (hlid == wlvif->ap.bcast_hlid) {
1444 if (key_type == KEY_WEP)
1445 lid_type = WEP_DEFAULT_LID_TYPE;
1446 else
1447 lid_type = BROADCAST_LID_TYPE;
1448 } else {
1449 lid_type = UNICAST_LID_TYPE;
1450 }
1451
1452 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1453 " hlid: %d", (int)action, (int)id, (int)lid_type,
1454 (int)key_type, (int)hlid);
1455
1456 cmd->lid_key_type = lid_type;
1457 cmd->hlid = hlid;
1458 cmd->key_action = cpu_to_le16(action);
1459 cmd->key_size = key_size;
1460 cmd->key_type = key_type;
1461 cmd->key_id = id;
1462 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1463 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1464
1465 if (key_type == KEY_TKIP) {
1466 /*
1467 * We get the key in the following form:
1468 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1469 * but the target is expecting:
1470 * TKIP - RX MIC - TX MIC
1471 */
1472 memcpy(cmd->key, key, 16);
1473 memcpy(cmd->key + 16, key + 24, 8);
1474 memcpy(cmd->key + 24, key + 16, 8);
1475 } else {
1476 memcpy(cmd->key, key, key_size);
1477 }
1478
1479 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1480
1481 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1482 if (ret < 0) {
1483 wl1271_warning("could not set ap keys");
1484 goto out;
1485 }
1486
1487 out:
1488 kfree(cmd);
1489 return ret;
1490 }
1491
1492 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1493 u8 hlid)
1494 {
1495 struct wl12xx_cmd_set_peer_state *cmd;
1496 int ret = 0;
1497
1498 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1499
1500 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1501 if (!cmd) {
1502 ret = -ENOMEM;
1503 goto out;
1504 }
1505
1506 cmd->hlid = hlid;
1507 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1508
1509 /* wmm param is valid only for station role */
1510 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1511 cmd->wmm = wlvif->wmm_enabled;
1512
1513 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1514 if (ret < 0) {
1515 wl1271_error("failed to send set peer state command");
1516 goto out_free;
1517 }
1518
1519 out_free:
1520 kfree(cmd);
1521
1522 out:
1523 return ret;
1524 }
1525
1526 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1527 struct ieee80211_sta *sta, u8 hlid)
1528 {
1529 struct wl12xx_cmd_add_peer *cmd;
1530 int i, ret;
1531 u32 sta_rates;
1532
1533 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1534
1535 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1536 if (!cmd) {
1537 ret = -ENOMEM;
1538 goto out;
1539 }
1540
1541 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1542 cmd->bss_index = WL1271_AP_BSS_INDEX;
1543 cmd->aid = sta->aid;
1544 cmd->hlid = hlid;
1545 cmd->sp_len = sta->max_sp;
1546 cmd->wmm = sta->wme ? 1 : 0;
1547 cmd->session_id = wl->session_ids[hlid];
1548 cmd->role_id = wlvif->role_id;
1549
1550 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1551 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1552 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1553 WL1271_PSD_UPSD_TRIGGER;
1554 else
1555 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1556 WL1271_PSD_LEGACY;
1557
1558
1559 sta_rates = sta->supp_rates[wlvif->band];
1560 if (sta->ht_cap.ht_supported)
1561 sta_rates |=
1562 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1563 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1564
1565 cmd->supported_rates =
1566 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1567 wlvif->band));
1568
1569 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1570 cmd->supported_rates, sta->uapsd_queues);
1571
1572 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1573 if (ret < 0) {
1574 wl1271_error("failed to initiate cmd add peer");
1575 goto out_free;
1576 }
1577
1578 out_free:
1579 kfree(cmd);
1580
1581 out:
1582 return ret;
1583 }
1584
1585 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1586 u8 hlid)
1587 {
1588 struct wl12xx_cmd_remove_peer *cmd;
1589 int ret;
1590 bool timeout = false;
1591
1592 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1593
1594 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1595 if (!cmd) {
1596 ret = -ENOMEM;
1597 goto out;
1598 }
1599
1600 cmd->hlid = hlid;
1601 /* We never send a deauth, mac80211 is in charge of this */
1602 cmd->reason_opcode = 0;
1603 cmd->send_deauth_flag = 0;
1604 cmd->role_id = wlvif->role_id;
1605
1606 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1607 if (ret < 0) {
1608 wl1271_error("failed to initiate cmd remove peer");
1609 goto out_free;
1610 }
1611
1612 ret = wl->ops->wait_for_event(wl,
1613 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1614 &timeout);
1615
1616 /*
1617 * We are ok with a timeout here. The event is sometimes not sent
1618 * due to a firmware bug. In case of another error (like SDIO timeout)
1619 * queue a recovery.
1620 */
1621 if (ret)
1622 wl12xx_queue_recovery_work(wl);
1623
1624 out_free:
1625 kfree(cmd);
1626
1627 out:
1628 return ret;
1629 }
1630
1631 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1632 {
1633 /*
1634 * map the given band/channel to the respective predefined
1635 * bit expected by the fw
1636 */
1637 switch (band) {
1638 case NL80211_BAND_2GHZ:
1639 /* channels 1..14 are mapped to 0..13 */
1640 if (ch >= 1 && ch <= 14)
1641 return ch - 1;
1642 break;
1643 case NL80211_BAND_5GHZ:
1644 switch (ch) {
1645 case 8 ... 16:
1646 /* channels 8,12,16 are mapped to 18,19,20 */
1647 return 18 + (ch-8)/4;
1648 case 34 ... 48:
1649 /* channels 34,36..48 are mapped to 21..28 */
1650 return 21 + (ch-34)/2;
1651 case 52 ... 64:
1652 /* channels 52,56..64 are mapped to 29..32 */
1653 return 29 + (ch-52)/4;
1654 case 100 ... 140:
1655 /* channels 100,104..140 are mapped to 33..43 */
1656 return 33 + (ch-100)/4;
1657 case 149 ... 165:
1658 /* channels 149,153..165 are mapped to 44..48 */
1659 return 44 + (ch-149)/4;
1660 default:
1661 break;
1662 }
1663 break;
1664 default:
1665 break;
1666 }
1667
1668 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1669 return -1;
1670 }
1671
1672 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1673 enum nl80211_band band)
1674 {
1675 int ch_bit_idx = 0;
1676
1677 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1678 return;
1679
1680 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1681
1682 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1683 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1684 }
1685
1686 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1687 {
1688 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1689 int ret = 0, i, b, ch_bit_idx;
1690 u32 tmp_ch_bitmap[2];
1691 struct wiphy *wiphy = wl->hw->wiphy;
1692 struct ieee80211_supported_band *band;
1693 bool timeout = false;
1694
1695 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1696 return 0;
1697
1698 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1699
1700 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap));
1701
1702 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1703 band = wiphy->bands[b];
1704 for (i = 0; i < band->n_channels; i++) {
1705 struct ieee80211_channel *channel = &band->channels[i];
1706 u16 ch = channel->hw_value;
1707 u32 flags = channel->flags;
1708
1709 if (flags & (IEEE80211_CHAN_DISABLED |
1710 IEEE80211_CHAN_NO_IR))
1711 continue;
1712
1713 if ((flags & IEEE80211_CHAN_RADAR) &&
1714 channel->dfs_state != NL80211_DFS_AVAILABLE)
1715 continue;
1716
1717 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1718 if (ch_bit_idx < 0)
1719 continue;
1720
1721 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap);
1722 }
1723 }
1724
1725 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0];
1726 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1];
1727
1728 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1729 goto out;
1730
1731 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1732 if (!cmd) {
1733 ret = -ENOMEM;
1734 goto out;
1735 }
1736
1737 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]);
1738 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]);
1739 cmd->dfs_region = wl->dfs_region;
1740
1741 wl1271_debug(DEBUG_CMD,
1742 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1743 cmd->ch_bit_map1, cmd->ch_bit_map2);
1744
1745 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1746 if (ret < 0) {
1747 wl1271_error("failed to send reg domain dfs config");
1748 goto out;
1749 }
1750
1751 ret = wl->ops->wait_for_event(wl,
1752 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1753 &timeout);
1754 if (ret < 0 || timeout) {
1755 wl1271_error("reg domain conf %serror",
1756 timeout ? "completion " : "");
1757 ret = timeout ? -ETIMEDOUT : ret;
1758 goto out;
1759 }
1760
1761 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1762 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1763
1764 out:
1765 kfree(cmd);
1766 return ret;
1767 }
1768
1769 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1770 {
1771 struct wl12xx_cmd_config_fwlog *cmd;
1772 int ret = 0;
1773
1774 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1775
1776 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1777 if (!cmd) {
1778 ret = -ENOMEM;
1779 goto out;
1780 }
1781
1782 cmd->logger_mode = wl->conf.fwlog.mode;
1783 cmd->log_severity = wl->conf.fwlog.severity;
1784 cmd->timestamp = wl->conf.fwlog.timestamp;
1785 cmd->output = wl->conf.fwlog.output;
1786 cmd->threshold = wl->conf.fwlog.threshold;
1787
1788 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1789 if (ret < 0) {
1790 wl1271_error("failed to send config firmware logger command");
1791 goto out_free;
1792 }
1793
1794 out_free:
1795 kfree(cmd);
1796
1797 out:
1798 return ret;
1799 }
1800
1801 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1802 {
1803 struct wl12xx_cmd_start_fwlog *cmd;
1804 int ret = 0;
1805
1806 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1807
1808 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1809 if (!cmd) {
1810 ret = -ENOMEM;
1811 goto out;
1812 }
1813
1814 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1815 if (ret < 0) {
1816 wl1271_error("failed to send start firmware logger command");
1817 goto out_free;
1818 }
1819
1820 out_free:
1821 kfree(cmd);
1822
1823 out:
1824 return ret;
1825 }
1826
1827 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1828 {
1829 struct wl12xx_cmd_stop_fwlog *cmd;
1830 int ret = 0;
1831
1832 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1833
1834 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1835 if (!cmd) {
1836 ret = -ENOMEM;
1837 goto out;
1838 }
1839
1840 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1841 if (ret < 0) {
1842 wl1271_error("failed to send stop firmware logger command");
1843 goto out_free;
1844 }
1845
1846 out_free:
1847 kfree(cmd);
1848
1849 out:
1850 return ret;
1851 }
1852
1853 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1854 u8 role_id, enum nl80211_band band, u8 channel)
1855 {
1856 struct wl12xx_cmd_roc *cmd;
1857 int ret = 0;
1858
1859 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1860
1861 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1862 return -EINVAL;
1863
1864 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1865 if (!cmd) {
1866 ret = -ENOMEM;
1867 goto out;
1868 }
1869
1870 cmd->role_id = role_id;
1871 cmd->channel = channel;
1872 switch (band) {
1873 case NL80211_BAND_2GHZ:
1874 cmd->band = WLCORE_BAND_2_4GHZ;
1875 break;
1876 case NL80211_BAND_5GHZ:
1877 cmd->band = WLCORE_BAND_5GHZ;
1878 break;
1879 default:
1880 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1881 ret = -EINVAL;
1882 goto out_free;
1883 }
1884
1885
1886 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1887 if (ret < 0) {
1888 wl1271_error("failed to send ROC command");
1889 goto out_free;
1890 }
1891
1892 out_free:
1893 kfree(cmd);
1894
1895 out:
1896 return ret;
1897 }
1898
1899 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1900 {
1901 struct wl12xx_cmd_croc *cmd;
1902 int ret = 0;
1903
1904 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1905
1906 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1907 if (!cmd) {
1908 ret = -ENOMEM;
1909 goto out;
1910 }
1911 cmd->role_id = role_id;
1912
1913 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1914 sizeof(*cmd), 0);
1915 if (ret < 0) {
1916 wl1271_error("failed to send ROC command");
1917 goto out_free;
1918 }
1919
1920 out_free:
1921 kfree(cmd);
1922
1923 out:
1924 return ret;
1925 }
1926
1927 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1928 enum nl80211_band band, u8 channel)
1929 {
1930 int ret = 0;
1931
1932 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1933 return 0;
1934
1935 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1936 if (ret < 0)
1937 goto out;
1938
1939 __set_bit(role_id, wl->roc_map);
1940 out:
1941 return ret;
1942 }
1943
1944 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1945 {
1946 int ret = 0;
1947
1948 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1949 return 0;
1950
1951 ret = wl12xx_cmd_croc(wl, role_id);
1952 if (ret < 0)
1953 goto out;
1954
1955 __clear_bit(role_id, wl->roc_map);
1956
1957 /*
1958 * Rearm the tx watchdog when removing the last ROC. This prevents
1959 * recoveries due to just finished ROCs - when Tx hasn't yet had
1960 * a chance to get out.
1961 */
1962 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1963 wl12xx_rearm_tx_watchdog_locked(wl);
1964 out:
1965 return ret;
1966 }
1967
1968 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1969 {
1970 struct wl12xx_cmd_stop_channel_switch *cmd;
1971 int ret;
1972
1973 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1974
1975 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1976 if (!cmd) {
1977 ret = -ENOMEM;
1978 goto out;
1979 }
1980
1981 cmd->role_id = wlvif->role_id;
1982
1983 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1984 if (ret < 0) {
1985 wl1271_error("failed to stop channel switch command");
1986 goto out_free;
1987 }
1988
1989 out_free:
1990 kfree(cmd);
1991
1992 out:
1993 return ret;
1994 }
1995
1996 /* start dev role and roc on its channel */
1997 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1998 enum nl80211_band band, int channel)
1999 {
2000 int ret;
2001
2002 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2003 wlvif->bss_type == BSS_TYPE_IBSS)))
2004 return -EINVAL;
2005
2006 /* the dev role is already started for p2p mgmt interfaces */
2007 if (!wlcore_is_p2p_mgmt(wlvif)) {
2008 ret = wl12xx_cmd_role_enable(wl,
2009 wl12xx_wlvif_to_vif(wlvif)->addr,
2010 WL1271_ROLE_DEVICE,
2011 &wlvif->dev_role_id);
2012 if (ret < 0)
2013 goto out;
2014 }
2015
2016 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2017 if (ret < 0)
2018 goto out_disable;
2019
2020 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2021 if (ret < 0)
2022 goto out_stop;
2023
2024 return 0;
2025
2026 out_stop:
2027 wl12xx_cmd_role_stop_dev(wl, wlvif);
2028 out_disable:
2029 if (!wlcore_is_p2p_mgmt(wlvif))
2030 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2031 out:
2032 return ret;
2033 }
2034
2035 /* croc dev hlid, and stop the role */
2036 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2037 {
2038 int ret;
2039
2040 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2041 wlvif->bss_type == BSS_TYPE_IBSS)))
2042 return -EINVAL;
2043
2044 /* flush all pending packets */
2045 ret = wlcore_tx_work_locked(wl);
2046 if (ret < 0)
2047 goto out;
2048
2049 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2050 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2051 if (ret < 0)
2052 goto out;
2053 }
2054
2055 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2056 if (ret < 0)
2057 goto out;
2058
2059 if (!wlcore_is_p2p_mgmt(wlvif)) {
2060 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2061 if (ret < 0)
2062 goto out;
2063 }
2064
2065 out:
2066 return ret;
2067 }
2068
2069 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2070 u8 feature, u8 enable, u8 value)
2071 {
2072 struct wlcore_cmd_generic_cfg *cmd;
2073 int ret;
2074
2075 wl1271_debug(DEBUG_CMD,
2076 "cmd generic cfg (role %d feature %d enable %d value %d)",
2077 wlvif->role_id, feature, enable, value);
2078
2079 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2080 if (!cmd)
2081 return -ENOMEM;
2082
2083 cmd->role_id = wlvif->role_id;
2084 cmd->feature = feature;
2085 cmd->enable = enable;
2086 cmd->value = value;
2087
2088 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2089 if (ret < 0) {
2090 wl1271_error("failed to send generic cfg command");
2091 goto out_free;
2092 }
2093 out_free:
2094 kfree(cmd);
2095 return ret;
2096 }
2097 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
Linux kernel - Deliverables
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