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229f4d01f239ee7d4155899c30dfc482028d31e1
[GitHub/moto-9609/android_kernel_motorola_exynos9610.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 /* If MESH --> ssid_len is always 0 */
633 if (!ieee80211_vif_is_mesh(vif)) {
634 /* trying to use hidden SSID with an old hostapd version */
635 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
636 wl1271_error("got a null SSID from beacon/bss");
637 ret = -EINVAL;
638 goto out;
639 }
640 }
641
642 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
643 if (!cmd) {
644 ret = -ENOMEM;
645 goto out;
646 }
647
648 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
649 if (ret < 0)
650 goto out_free;
651
652 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
653 if (ret < 0)
654 goto out_free_global;
655
656 /* use the previous security seq, if this is a recovery/resume */
657 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
658 wlvif->total_freed_pkts;
659
660 cmd->role_id = wlvif->role_id;
661 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
662 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
663 cmd->ap.global_hlid = wlvif->ap.global_hlid;
664 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
665 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
666 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
667 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
668 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
669 cmd->ap.dtim_interval = bss_conf->dtim_period;
670 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
671 /* FIXME: Change when adding DFS */
672 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
673 cmd->ap.wmm = wlvif->wmm_enabled;
674 cmd->channel = wlvif->channel;
675 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
676
677 if (!bss_conf->hidden_ssid) {
678 /* take the SSID from the beacon for backward compatibility */
679 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
680 cmd->ap.ssid_len = wlvif->ssid_len;
681 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
682 } else {
683 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
684 cmd->ap.ssid_len = bss_conf->ssid_len;
685 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
686 }
687
688 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
689 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
690 if (wlvif->p2p)
691 supported_rates &= ~CONF_TX_CCK_RATES;
692
693 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
694 supported_rates);
695
696 cmd->ap.local_rates = cpu_to_le32(supported_rates);
697
698 switch (wlvif->band) {
699 case NL80211_BAND_2GHZ:
700 cmd->band = WLCORE_BAND_2_4GHZ;
701 break;
702 case NL80211_BAND_5GHZ:
703 cmd->band = WLCORE_BAND_5GHZ;
704 break;
705 default:
706 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
707 cmd->band = WLCORE_BAND_2_4GHZ;
708 break;
709 }
710
711 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
712 if (ret < 0) {
713 wl1271_error("failed to initiate cmd role start ap");
714 goto out_free_bcast;
715 }
716
717 goto out_free;
718
719 out_free_bcast:
720 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
721
722 out_free_global:
723 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
724
725 out_free:
726 kfree(cmd);
727
728 out:
729 return ret;
730 }
731
732 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
733 {
734 struct wl12xx_cmd_role_stop *cmd;
735 int ret;
736
737 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
738 if (!cmd) {
739 ret = -ENOMEM;
740 goto out;
741 }
742
743 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
744
745 cmd->role_id = wlvif->role_id;
746
747 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
748 if (ret < 0) {
749 wl1271_error("failed to initiate cmd role stop ap");
750 goto out_free;
751 }
752
753 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
754 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
755
756 out_free:
757 kfree(cmd);
758
759 out:
760 return ret;
761 }
762
763 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
764 {
765 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
766 struct wl12xx_cmd_role_start *cmd;
767 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
768 int ret;
769
770 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
771 if (!cmd) {
772 ret = -ENOMEM;
773 goto out;
774 }
775
776 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
777
778 cmd->role_id = wlvif->role_id;
779 if (wlvif->band == NL80211_BAND_5GHZ)
780 cmd->band = WLCORE_BAND_5GHZ;
781 cmd->channel = wlvif->channel;
782 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
783 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
784 cmd->ibss.dtim_interval = bss_conf->dtim_period;
785 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
786 cmd->ibss.ssid_len = wlvif->ssid_len;
787 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
788 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
789 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
790
791 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
792 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
793 if (ret)
794 goto out_free;
795 }
796 cmd->ibss.hlid = wlvif->sta.hlid;
797 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
798
799 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
800 "basic_rate_set: 0x%x, remote_rates: 0x%x",
801 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
802 wlvif->basic_rate_set, wlvif->rate_set);
803
804 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
805 vif->bss_conf.bssid);
806
807 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
808 if (ret < 0) {
809 wl1271_error("failed to initiate cmd role enable");
810 goto err_hlid;
811 }
812
813 goto out_free;
814
815 err_hlid:
816 /* clear links on error. */
817 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
818
819 out_free:
820 kfree(cmd);
821
822 out:
823 return ret;
824 }
825
826
827 /**
828 * send test command to firmware
829 *
830 * @wl: wl struct
831 * @buf: buffer containing the command, with all headers, must work with dma
832 * @len: length of the buffer
833 * @answer: is answer needed
834 */
835 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
836 {
837 int ret;
838 size_t res_len = 0;
839
840 wl1271_debug(DEBUG_CMD, "cmd test");
841
842 if (answer)
843 res_len = buf_len;
844
845 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
846
847 if (ret < 0) {
848 wl1271_warning("TEST command failed");
849 return ret;
850 }
851
852 return ret;
853 }
854 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
855
856 /**
857 * read acx from firmware
858 *
859 * @wl: wl struct
860 * @id: acx id
861 * @buf: buffer for the response, including all headers, must work with dma
862 * @len: length of buf
863 */
864 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
865 size_t cmd_len, size_t res_len)
866 {
867 struct acx_header *acx = buf;
868 int ret;
869
870 wl1271_debug(DEBUG_CMD, "cmd interrogate");
871
872 acx->id = cpu_to_le16(id);
873
874 /* response payload length, does not include any headers */
875 acx->len = cpu_to_le16(res_len - sizeof(*acx));
876
877 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
878 if (ret < 0)
879 wl1271_error("INTERROGATE command failed");
880
881 return ret;
882 }
883
884 /**
885 * write acx value to firmware
886 *
887 * @wl: wl struct
888 * @id: acx id
889 * @buf: buffer containing acx, including all headers, must work with dma
890 * @len: length of buf
891 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
892 * return the cmd status on success.
893 */
894 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
895 size_t len, unsigned long valid_rets)
896 {
897 struct acx_header *acx = buf;
898 int ret;
899
900 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
901
902 if (WARN_ON_ONCE(len < sizeof(*acx)))
903 return -EIO;
904
905 acx->id = cpu_to_le16(id);
906
907 /* payload length, does not include any headers */
908 acx->len = cpu_to_le16(len - sizeof(*acx));
909
910 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
911 valid_rets);
912 if (ret < 0) {
913 wl1271_warning("CONFIGURE command NOK");
914 return ret;
915 }
916
917 return ret;
918 }
919
920 /*
921 * wrapper for wlcore_cmd_configure that accepts only success status.
922 * return 0 on success
923 */
924 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
925 {
926 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
927
928 if (ret < 0)
929 return ret;
930 return 0;
931 }
932 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
933
934 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
935 {
936 struct cmd_enabledisable_path *cmd;
937 int ret;
938 u16 cmd_rx, cmd_tx;
939
940 wl1271_debug(DEBUG_CMD, "cmd data path");
941
942 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
943 if (!cmd) {
944 ret = -ENOMEM;
945 goto out;
946 }
947
948 /* the channel here is only used for calibration, so hardcoded to 1 */
949 cmd->channel = 1;
950
951 if (enable) {
952 cmd_rx = CMD_ENABLE_RX;
953 cmd_tx = CMD_ENABLE_TX;
954 } else {
955 cmd_rx = CMD_DISABLE_RX;
956 cmd_tx = CMD_DISABLE_TX;
957 }
958
959 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
960 if (ret < 0) {
961 wl1271_error("rx %s cmd for channel %d failed",
962 enable ? "start" : "stop", cmd->channel);
963 goto out;
964 }
965
966 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
967 enable ? "start" : "stop", cmd->channel);
968
969 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
970 if (ret < 0) {
971 wl1271_error("tx %s cmd for channel %d failed",
972 enable ? "start" : "stop", cmd->channel);
973 goto out;
974 }
975
976 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
977 enable ? "start" : "stop", cmd->channel);
978
979 out:
980 kfree(cmd);
981 return ret;
982 }
983 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
984
985 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
986 u8 ps_mode, u16 auto_ps_timeout)
987 {
988 struct wl1271_cmd_ps_params *ps_params = NULL;
989 int ret = 0;
990
991 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
992
993 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
994 if (!ps_params) {
995 ret = -ENOMEM;
996 goto out;
997 }
998
999 ps_params->role_id = wlvif->role_id;
1000 ps_params->ps_mode = ps_mode;
1001 ps_params->auto_ps_timeout = auto_ps_timeout;
1002
1003 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1004 sizeof(*ps_params), 0);
1005 if (ret < 0) {
1006 wl1271_error("cmd set_ps_mode failed");
1007 goto out;
1008 }
1009
1010 out:
1011 kfree(ps_params);
1012 return ret;
1013 }
1014
1015 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1016 u16 template_id, void *buf, size_t buf_len,
1017 int index, u32 rates)
1018 {
1019 struct wl1271_cmd_template_set *cmd;
1020 int ret = 0;
1021
1022 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1023 template_id, role_id);
1024
1025 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1026 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1027
1028 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1029 if (!cmd) {
1030 ret = -ENOMEM;
1031 goto out;
1032 }
1033
1034 /* during initialization wlvif is NULL */
1035 cmd->role_id = role_id;
1036 cmd->len = cpu_to_le16(buf_len);
1037 cmd->template_type = template_id;
1038 cmd->enabled_rates = cpu_to_le32(rates);
1039 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1040 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1041 cmd->index = index;
1042
1043 if (buf)
1044 memcpy(cmd->template_data, buf, buf_len);
1045
1046 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1047 if (ret < 0) {
1048 wl1271_warning("cmd set_template failed: %d", ret);
1049 goto out_free;
1050 }
1051
1052 out_free:
1053 kfree(cmd);
1054
1055 out:
1056 return ret;
1057 }
1058
1059 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1060 {
1061 struct sk_buff *skb = NULL;
1062 int size;
1063 void *ptr;
1064 int ret = -ENOMEM;
1065
1066
1067 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1068 size = sizeof(struct wl12xx_null_data_template);
1069 ptr = NULL;
1070 } else {
1071 skb = ieee80211_nullfunc_get(wl->hw,
1072 wl12xx_wlvif_to_vif(wlvif));
1073 if (!skb)
1074 goto out;
1075 size = skb->len;
1076 ptr = skb->data;
1077 }
1078
1079 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1080 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1081 wlvif->basic_rate);
1082
1083 out:
1084 dev_kfree_skb(skb);
1085 if (ret)
1086 wl1271_warning("cmd buld null data failed %d", ret);
1087
1088 return ret;
1089
1090 }
1091
1092 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1093 struct wl12xx_vif *wlvif)
1094 {
1095 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1096 struct sk_buff *skb = NULL;
1097 int ret = -ENOMEM;
1098
1099 skb = ieee80211_nullfunc_get(wl->hw, vif);
1100 if (!skb)
1101 goto out;
1102
1103 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1104 skb->data, skb->len,
1105 wlvif->sta.klv_template_id,
1106 wlvif->basic_rate);
1107
1108 out:
1109 dev_kfree_skb(skb);
1110 if (ret)
1111 wl1271_warning("cmd build klv null data failed %d", ret);
1112
1113 return ret;
1114
1115 }
1116
1117 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1118 u16 aid)
1119 {
1120 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1121 struct sk_buff *skb;
1122 int ret = 0;
1123
1124 skb = ieee80211_pspoll_get(wl->hw, vif);
1125 if (!skb)
1126 goto out;
1127
1128 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1129 CMD_TEMPL_PS_POLL, skb->data,
1130 skb->len, 0, wlvif->basic_rate_set);
1131
1132 out:
1133 dev_kfree_skb(skb);
1134 return ret;
1135 }
1136
1137 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1138 u8 role_id, u8 band,
1139 const u8 *ssid, size_t ssid_len,
1140 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1141 size_t ie1_len, bool sched_scan)
1142 {
1143 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1144 struct sk_buff *skb;
1145 int ret;
1146 u32 rate;
1147 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1148 u16 template_id_5 = wl->scan_templ_id_5;
1149
1150 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1151
1152 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1153 ie0_len + ie1_len);
1154 if (!skb) {
1155 ret = -ENOMEM;
1156 goto out;
1157 }
1158 if (ie0_len)
1159 skb_put_data(skb, ie0, ie0_len);
1160 if (ie1_len)
1161 skb_put_data(skb, ie1, ie1_len);
1162
1163 if (sched_scan &&
1164 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1165 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1166 template_id_5 = wl->sched_scan_templ_id_5;
1167 }
1168
1169 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1170 if (band == NL80211_BAND_2GHZ)
1171 ret = wl1271_cmd_template_set(wl, role_id,
1172 template_id_2_4,
1173 skb->data, skb->len, 0, rate);
1174 else
1175 ret = wl1271_cmd_template_set(wl, role_id,
1176 template_id_5,
1177 skb->data, skb->len, 0, rate);
1178
1179 out:
1180 dev_kfree_skb(skb);
1181 return ret;
1182 }
1183 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1184
1185 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1186 struct wl12xx_vif *wlvif,
1187 struct sk_buff *skb)
1188 {
1189 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1190 int ret;
1191 u32 rate;
1192
1193 if (!skb)
1194 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1195 if (!skb)
1196 goto out;
1197
1198 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1199
1200 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1201 if (wlvif->band == NL80211_BAND_2GHZ)
1202 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1203 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1204 skb->data, skb->len, 0, rate);
1205 else
1206 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1207 CMD_TEMPL_CFG_PROBE_REQ_5,
1208 skb->data, skb->len, 0, rate);
1209
1210 if (ret < 0)
1211 wl1271_error("Unable to set ap probe request template.");
1212
1213 out:
1214 return skb;
1215 }
1216
1217 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1218 {
1219 int ret, extra = 0;
1220 u16 fc;
1221 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1222 struct sk_buff *skb;
1223 struct wl12xx_arp_rsp_template *tmpl;
1224 struct ieee80211_hdr_3addr *hdr;
1225 struct arphdr *arp_hdr;
1226
1227 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1228 WL1271_EXTRA_SPACE_MAX);
1229 if (!skb) {
1230 wl1271_error("failed to allocate buffer for arp rsp template");
1231 return -ENOMEM;
1232 }
1233
1234 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1235
1236 tmpl = skb_put_zero(skb, sizeof(*tmpl));
1237
1238 /* llc layer */
1239 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1240 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1241
1242 /* arp header */
1243 arp_hdr = &tmpl->arp_hdr;
1244 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1245 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1246 arp_hdr->ar_hln = ETH_ALEN;
1247 arp_hdr->ar_pln = 4;
1248 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1249
1250 /* arp payload */
1251 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1252 tmpl->sender_ip = wlvif->ip_addr;
1253
1254 /* encryption space */
1255 switch (wlvif->encryption_type) {
1256 case KEY_TKIP:
1257 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1258 extra = WL1271_EXTRA_SPACE_TKIP;
1259 break;
1260 case KEY_AES:
1261 extra = WL1271_EXTRA_SPACE_AES;
1262 break;
1263 case KEY_NONE:
1264 case KEY_WEP:
1265 case KEY_GEM:
1266 extra = 0;
1267 break;
1268 default:
1269 wl1271_warning("Unknown encryption type: %d",
1270 wlvif->encryption_type);
1271 ret = -EINVAL;
1272 goto out;
1273 }
1274
1275 if (extra) {
1276 u8 *space = skb_push(skb, extra);
1277 memset(space, 0, extra);
1278 }
1279
1280 /* QoS header - BE */
1281 if (wlvif->sta.qos)
1282 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1283
1284 /* mac80211 header */
1285 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
1286 memset(hdr, 0, sizeof(*hdr));
1287 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1288 if (wlvif->sta.qos)
1289 fc |= IEEE80211_STYPE_QOS_DATA;
1290 else
1291 fc |= IEEE80211_STYPE_DATA;
1292 if (wlvif->encryption_type != KEY_NONE)
1293 fc |= IEEE80211_FCTL_PROTECTED;
1294
1295 hdr->frame_control = cpu_to_le16(fc);
1296 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1297 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1298 eth_broadcast_addr(hdr->addr3);
1299
1300 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1301 skb->data, skb->len, 0,
1302 wlvif->basic_rate);
1303 out:
1304 dev_kfree_skb(skb);
1305 return ret;
1306 }
1307
1308 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1309 {
1310 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1311 struct ieee80211_qos_hdr template;
1312
1313 memset(&template, 0, sizeof(template));
1314
1315 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1316 memcpy(template.addr2, vif->addr, ETH_ALEN);
1317 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1318
1319 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1320 IEEE80211_STYPE_QOS_NULLFUNC |
1321 IEEE80211_FCTL_TODS);
1322
1323 /* FIXME: not sure what priority to use here */
1324 template.qos_ctrl = cpu_to_le16(0);
1325
1326 return wl1271_cmd_template_set(wl, wlvif->role_id,
1327 CMD_TEMPL_QOS_NULL_DATA, &template,
1328 sizeof(template), 0,
1329 wlvif->basic_rate);
1330 }
1331
1332 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1333 {
1334 struct wl1271_cmd_set_keys *cmd;
1335 int ret = 0;
1336
1337 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1338
1339 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1340 if (!cmd) {
1341 ret = -ENOMEM;
1342 goto out;
1343 }
1344
1345 cmd->hlid = hlid;
1346 cmd->key_id = id;
1347 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1348 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1349 cmd->key_type = KEY_WEP;
1350
1351 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1352 if (ret < 0) {
1353 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1354 goto out;
1355 }
1356
1357 out:
1358 kfree(cmd);
1359
1360 return ret;
1361 }
1362
1363 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1364 u16 action, u8 id, u8 key_type,
1365 u8 key_size, const u8 *key, const u8 *addr,
1366 u32 tx_seq_32, u16 tx_seq_16)
1367 {
1368 struct wl1271_cmd_set_keys *cmd;
1369 int ret = 0;
1370
1371 /* hlid might have already been deleted */
1372 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1373 return 0;
1374
1375 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1376 if (!cmd) {
1377 ret = -ENOMEM;
1378 goto out;
1379 }
1380
1381 cmd->hlid = wlvif->sta.hlid;
1382
1383 if (key_type == KEY_WEP)
1384 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1385 else if (is_broadcast_ether_addr(addr))
1386 cmd->lid_key_type = BROADCAST_LID_TYPE;
1387 else
1388 cmd->lid_key_type = UNICAST_LID_TYPE;
1389
1390 cmd->key_action = cpu_to_le16(action);
1391 cmd->key_size = key_size;
1392 cmd->key_type = key_type;
1393
1394 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1395 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1396
1397 cmd->key_id = id;
1398
1399 if (key_type == KEY_TKIP) {
1400 /*
1401 * We get the key in the following form:
1402 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1403 * but the target is expecting:
1404 * TKIP - RX MIC - TX MIC
1405 */
1406 memcpy(cmd->key, key, 16);
1407 memcpy(cmd->key + 16, key + 24, 8);
1408 memcpy(cmd->key + 24, key + 16, 8);
1409
1410 } else {
1411 memcpy(cmd->key, key, key_size);
1412 }
1413
1414 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1415
1416 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1417 if (ret < 0) {
1418 wl1271_warning("could not set keys");
1419 goto out;
1420 }
1421
1422 out:
1423 kfree(cmd);
1424
1425 return ret;
1426 }
1427
1428 /*
1429 * TODO: merge with sta/ibss into 1 set_key function.
1430 * note there are slight diffs
1431 */
1432 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1433 u16 action, u8 id, u8 key_type,
1434 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1435 u16 tx_seq_16)
1436 {
1437 struct wl1271_cmd_set_keys *cmd;
1438 int ret = 0;
1439 u8 lid_type;
1440
1441 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1442 if (!cmd)
1443 return -ENOMEM;
1444
1445 if (hlid == wlvif->ap.bcast_hlid) {
1446 if (key_type == KEY_WEP)
1447 lid_type = WEP_DEFAULT_LID_TYPE;
1448 else
1449 lid_type = BROADCAST_LID_TYPE;
1450 } else {
1451 lid_type = UNICAST_LID_TYPE;
1452 }
1453
1454 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1455 " hlid: %d", (int)action, (int)id, (int)lid_type,
1456 (int)key_type, (int)hlid);
1457
1458 cmd->lid_key_type = lid_type;
1459 cmd->hlid = hlid;
1460 cmd->key_action = cpu_to_le16(action);
1461 cmd->key_size = key_size;
1462 cmd->key_type = key_type;
1463 cmd->key_id = id;
1464 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1465 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1466
1467 if (key_type == KEY_TKIP) {
1468 /*
1469 * We get the key in the following form:
1470 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1471 * but the target is expecting:
1472 * TKIP - RX MIC - TX MIC
1473 */
1474 memcpy(cmd->key, key, 16);
1475 memcpy(cmd->key + 16, key + 24, 8);
1476 memcpy(cmd->key + 24, key + 16, 8);
1477 } else {
1478 memcpy(cmd->key, key, key_size);
1479 }
1480
1481 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1482
1483 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1484 if (ret < 0) {
1485 wl1271_warning("could not set ap keys");
1486 goto out;
1487 }
1488
1489 out:
1490 kfree(cmd);
1491 return ret;
1492 }
1493
1494 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1495 u8 hlid)
1496 {
1497 struct wl12xx_cmd_set_peer_state *cmd;
1498 int ret = 0;
1499
1500 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1501
1502 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1503 if (!cmd) {
1504 ret = -ENOMEM;
1505 goto out;
1506 }
1507
1508 cmd->hlid = hlid;
1509 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1510
1511 /* wmm param is valid only for station role */
1512 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1513 cmd->wmm = wlvif->wmm_enabled;
1514
1515 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1516 if (ret < 0) {
1517 wl1271_error("failed to send set peer state command");
1518 goto out_free;
1519 }
1520
1521 out_free:
1522 kfree(cmd);
1523
1524 out:
1525 return ret;
1526 }
1527
1528 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1529 struct ieee80211_sta *sta, u8 hlid)
1530 {
1531 struct wl12xx_cmd_add_peer *cmd;
1532 int i, ret;
1533 u32 sta_rates;
1534
1535 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1536
1537 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1538 if (!cmd) {
1539 ret = -ENOMEM;
1540 goto out;
1541 }
1542
1543 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1544 cmd->bss_index = WL1271_AP_BSS_INDEX;
1545 cmd->aid = sta->aid;
1546 cmd->hlid = hlid;
1547 cmd->sp_len = sta->max_sp;
1548 cmd->wmm = sta->wme ? 1 : 0;
1549 cmd->session_id = wl->session_ids[hlid];
1550 cmd->role_id = wlvif->role_id;
1551
1552 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1553 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1554 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1555 WL1271_PSD_UPSD_TRIGGER;
1556 else
1557 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1558 WL1271_PSD_LEGACY;
1559
1560
1561 sta_rates = sta->supp_rates[wlvif->band];
1562 if (sta->ht_cap.ht_supported)
1563 sta_rates |=
1564 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1565 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1566
1567 cmd->supported_rates =
1568 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1569 wlvif->band));
1570
1571 if (!cmd->supported_rates) {
1572 wl1271_debug(DEBUG_CMD,
1573 "peer has no supported rates yet, configuring basic rates: 0x%x",
1574 wlvif->basic_rate_set);
1575 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set);
1576 }
1577
1578 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1579 cmd->supported_rates, sta->uapsd_queues);
1580
1581 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1582 if (ret < 0) {
1583 wl1271_error("failed to initiate cmd add peer");
1584 goto out_free;
1585 }
1586
1587 out_free:
1588 kfree(cmd);
1589
1590 out:
1591 return ret;
1592 }
1593
1594 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1595 u8 hlid)
1596 {
1597 struct wl12xx_cmd_remove_peer *cmd;
1598 int ret;
1599 bool timeout = false;
1600
1601 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1602
1603 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1604 if (!cmd) {
1605 ret = -ENOMEM;
1606 goto out;
1607 }
1608
1609 cmd->hlid = hlid;
1610 /* We never send a deauth, mac80211 is in charge of this */
1611 cmd->reason_opcode = 0;
1612 cmd->send_deauth_flag = 0;
1613 cmd->role_id = wlvif->role_id;
1614
1615 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1616 if (ret < 0) {
1617 wl1271_error("failed to initiate cmd remove peer");
1618 goto out_free;
1619 }
1620
1621 ret = wl->ops->wait_for_event(wl,
1622 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1623 &timeout);
1624
1625 /*
1626 * We are ok with a timeout here. The event is sometimes not sent
1627 * due to a firmware bug. In case of another error (like SDIO timeout)
1628 * queue a recovery.
1629 */
1630 if (ret)
1631 wl12xx_queue_recovery_work(wl);
1632
1633 out_free:
1634 kfree(cmd);
1635
1636 out:
1637 return ret;
1638 }
1639
1640 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1641 {
1642 /*
1643 * map the given band/channel to the respective predefined
1644 * bit expected by the fw
1645 */
1646 switch (band) {
1647 case NL80211_BAND_2GHZ:
1648 /* channels 1..14 are mapped to 0..13 */
1649 if (ch >= 1 && ch <= 14)
1650 return ch - 1;
1651 break;
1652 case NL80211_BAND_5GHZ:
1653 switch (ch) {
1654 case 8 ... 16:
1655 /* channels 8,12,16 are mapped to 18,19,20 */
1656 return 18 + (ch-8)/4;
1657 case 34 ... 48:
1658 /* channels 34,36..48 are mapped to 21..28 */
1659 return 21 + (ch-34)/2;
1660 case 52 ... 64:
1661 /* channels 52,56..64 are mapped to 29..32 */
1662 return 29 + (ch-52)/4;
1663 case 100 ... 140:
1664 /* channels 100,104..140 are mapped to 33..43 */
1665 return 33 + (ch-100)/4;
1666 case 149 ... 165:
1667 /* channels 149,153..165 are mapped to 44..48 */
1668 return 44 + (ch-149)/4;
1669 default:
1670 break;
1671 }
1672 break;
1673 default:
1674 break;
1675 }
1676
1677 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1678 return -1;
1679 }
1680
1681 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1682 enum nl80211_band band)
1683 {
1684 int ch_bit_idx = 0;
1685
1686 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1687 return;
1688
1689 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1690
1691 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1692 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1693 }
1694
1695 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1696 {
1697 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1698 int ret = 0, i, b, ch_bit_idx;
1699 u32 tmp_ch_bitmap[2];
1700 struct wiphy *wiphy = wl->hw->wiphy;
1701 struct ieee80211_supported_band *band;
1702 bool timeout = false;
1703
1704 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1705 return 0;
1706
1707 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1708
1709 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap));
1710
1711 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1712 band = wiphy->bands[b];
1713 for (i = 0; i < band->n_channels; i++) {
1714 struct ieee80211_channel *channel = &band->channels[i];
1715 u16 ch = channel->hw_value;
1716 u32 flags = channel->flags;
1717
1718 if (flags & (IEEE80211_CHAN_DISABLED |
1719 IEEE80211_CHAN_NO_IR))
1720 continue;
1721
1722 if ((flags & IEEE80211_CHAN_RADAR) &&
1723 channel->dfs_state != NL80211_DFS_AVAILABLE)
1724 continue;
1725
1726 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1727 if (ch_bit_idx < 0)
1728 continue;
1729
1730 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap);
1731 }
1732 }
1733
1734 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0];
1735 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1];
1736
1737 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1738 goto out;
1739
1740 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1741 if (!cmd) {
1742 ret = -ENOMEM;
1743 goto out;
1744 }
1745
1746 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]);
1747 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]);
1748 cmd->dfs_region = wl->dfs_region;
1749
1750 wl1271_debug(DEBUG_CMD,
1751 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1752 cmd->ch_bit_map1, cmd->ch_bit_map2);
1753
1754 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1755 if (ret < 0) {
1756 wl1271_error("failed to send reg domain dfs config");
1757 goto out;
1758 }
1759
1760 ret = wl->ops->wait_for_event(wl,
1761 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1762 &timeout);
1763 if (ret < 0 || timeout) {
1764 wl1271_error("reg domain conf %serror",
1765 timeout ? "completion " : "");
1766 ret = timeout ? -ETIMEDOUT : ret;
1767 goto out;
1768 }
1769
1770 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1771 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1772
1773 out:
1774 kfree(cmd);
1775 return ret;
1776 }
1777
1778 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1779 {
1780 struct wl12xx_cmd_config_fwlog *cmd;
1781 int ret = 0;
1782
1783 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1784
1785 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1786 if (!cmd) {
1787 ret = -ENOMEM;
1788 goto out;
1789 }
1790
1791 cmd->logger_mode = wl->conf.fwlog.mode;
1792 cmd->log_severity = wl->conf.fwlog.severity;
1793 cmd->timestamp = wl->conf.fwlog.timestamp;
1794 cmd->output = wl->conf.fwlog.output;
1795 cmd->threshold = wl->conf.fwlog.threshold;
1796
1797 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1798 if (ret < 0) {
1799 wl1271_error("failed to send config firmware logger command");
1800 goto out_free;
1801 }
1802
1803 out_free:
1804 kfree(cmd);
1805
1806 out:
1807 return ret;
1808 }
1809
1810 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1811 {
1812 struct wl12xx_cmd_start_fwlog *cmd;
1813 int ret = 0;
1814
1815 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1816
1817 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1818 if (!cmd) {
1819 ret = -ENOMEM;
1820 goto out;
1821 }
1822
1823 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1824 if (ret < 0) {
1825 wl1271_error("failed to send start firmware logger command");
1826 goto out_free;
1827 }
1828
1829 out_free:
1830 kfree(cmd);
1831
1832 out:
1833 return ret;
1834 }
1835
1836 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1837 {
1838 struct wl12xx_cmd_stop_fwlog *cmd;
1839 int ret = 0;
1840
1841 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1842
1843 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1844 if (!cmd) {
1845 ret = -ENOMEM;
1846 goto out;
1847 }
1848
1849 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1850 if (ret < 0) {
1851 wl1271_error("failed to send stop firmware logger command");
1852 goto out_free;
1853 }
1854
1855 out_free:
1856 kfree(cmd);
1857
1858 out:
1859 return ret;
1860 }
1861
1862 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1863 u8 role_id, enum nl80211_band band, u8 channel)
1864 {
1865 struct wl12xx_cmd_roc *cmd;
1866 int ret = 0;
1867
1868 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1869
1870 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1871 return -EINVAL;
1872
1873 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1874 if (!cmd) {
1875 ret = -ENOMEM;
1876 goto out;
1877 }
1878
1879 cmd->role_id = role_id;
1880 cmd->channel = channel;
1881 switch (band) {
1882 case NL80211_BAND_2GHZ:
1883 cmd->band = WLCORE_BAND_2_4GHZ;
1884 break;
1885 case NL80211_BAND_5GHZ:
1886 cmd->band = WLCORE_BAND_5GHZ;
1887 break;
1888 default:
1889 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1890 ret = -EINVAL;
1891 goto out_free;
1892 }
1893
1894
1895 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1896 if (ret < 0) {
1897 wl1271_error("failed to send ROC command");
1898 goto out_free;
1899 }
1900
1901 out_free:
1902 kfree(cmd);
1903
1904 out:
1905 return ret;
1906 }
1907
1908 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1909 {
1910 struct wl12xx_cmd_croc *cmd;
1911 int ret = 0;
1912
1913 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1914
1915 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1916 if (!cmd) {
1917 ret = -ENOMEM;
1918 goto out;
1919 }
1920 cmd->role_id = role_id;
1921
1922 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1923 sizeof(*cmd), 0);
1924 if (ret < 0) {
1925 wl1271_error("failed to send ROC command");
1926 goto out_free;
1927 }
1928
1929 out_free:
1930 kfree(cmd);
1931
1932 out:
1933 return ret;
1934 }
1935
1936 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1937 enum nl80211_band band, u8 channel)
1938 {
1939 int ret = 0;
1940
1941 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1942 return 0;
1943
1944 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1945 if (ret < 0)
1946 goto out;
1947
1948 __set_bit(role_id, wl->roc_map);
1949 out:
1950 return ret;
1951 }
1952
1953 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1954 {
1955 int ret = 0;
1956
1957 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1958 return 0;
1959
1960 ret = wl12xx_cmd_croc(wl, role_id);
1961 if (ret < 0)
1962 goto out;
1963
1964 __clear_bit(role_id, wl->roc_map);
1965
1966 /*
1967 * Rearm the tx watchdog when removing the last ROC. This prevents
1968 * recoveries due to just finished ROCs - when Tx hasn't yet had
1969 * a chance to get out.
1970 */
1971 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1972 wl12xx_rearm_tx_watchdog_locked(wl);
1973 out:
1974 return ret;
1975 }
1976
1977 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1978 {
1979 struct wl12xx_cmd_stop_channel_switch *cmd;
1980 int ret;
1981
1982 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1983
1984 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1985 if (!cmd) {
1986 ret = -ENOMEM;
1987 goto out;
1988 }
1989
1990 cmd->role_id = wlvif->role_id;
1991
1992 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1993 if (ret < 0) {
1994 wl1271_error("failed to stop channel switch command");
1995 goto out_free;
1996 }
1997
1998 out_free:
1999 kfree(cmd);
2000
2001 out:
2002 return ret;
2003 }
2004
2005 /* start dev role and roc on its channel */
2006 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2007 enum nl80211_band band, int channel)
2008 {
2009 int ret;
2010
2011 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2012 wlvif->bss_type == BSS_TYPE_IBSS)))
2013 return -EINVAL;
2014
2015 /* the dev role is already started for p2p mgmt interfaces */
2016 if (!wlcore_is_p2p_mgmt(wlvif)) {
2017 ret = wl12xx_cmd_role_enable(wl,
2018 wl12xx_wlvif_to_vif(wlvif)->addr,
2019 WL1271_ROLE_DEVICE,
2020 &wlvif->dev_role_id);
2021 if (ret < 0)
2022 goto out;
2023 }
2024
2025 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2026 if (ret < 0)
2027 goto out_disable;
2028
2029 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2030 if (ret < 0)
2031 goto out_stop;
2032
2033 return 0;
2034
2035 out_stop:
2036 wl12xx_cmd_role_stop_dev(wl, wlvif);
2037 out_disable:
2038 if (!wlcore_is_p2p_mgmt(wlvif))
2039 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2040 out:
2041 return ret;
2042 }
2043
2044 /* croc dev hlid, and stop the role */
2045 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2046 {
2047 int ret;
2048
2049 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2050 wlvif->bss_type == BSS_TYPE_IBSS)))
2051 return -EINVAL;
2052
2053 /* flush all pending packets */
2054 ret = wlcore_tx_work_locked(wl);
2055 if (ret < 0)
2056 goto out;
2057
2058 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2059 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2060 if (ret < 0)
2061 goto out;
2062 }
2063
2064 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2065 if (ret < 0)
2066 goto out;
2067
2068 if (!wlcore_is_p2p_mgmt(wlvif)) {
2069 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2070 if (ret < 0)
2071 goto out;
2072 }
2073
2074 out:
2075 return ret;
2076 }
2077
2078 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2079 u8 feature, u8 enable, u8 value)
2080 {
2081 struct wlcore_cmd_generic_cfg *cmd;
2082 int ret;
2083
2084 wl1271_debug(DEBUG_CMD,
2085 "cmd generic cfg (role %d feature %d enable %d value %d)",
2086 wlvif->role_id, feature, enable, value);
2087
2088 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2089 if (!cmd)
2090 return -ENOMEM;
2091
2092 cmd->role_id = wlvif->role_id;
2093 cmd->feature = feature;
2094 cmd->enable = enable;
2095 cmd->value = value;
2096
2097 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2098 if (ret < 0) {
2099 wl1271_error("failed to send generic cfg command");
2100 goto out_free;
2101 }
2102 out_free:
2103 kfree(cmd);
2104 return ret;
2105 }
2106 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);