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/pm_runtime.h>
27 #include <linux/spi/spi.h>
28 #include <linux/etherdevice.h>
29 #include <linux/ieee80211.h>
30 #include <linux/slab.h>
31
32 #include "wlcore.h"
33 #include "debug.h"
34 #include "io.h"
35 #include "acx.h"
36 #include "wl12xx_80211.h"
37 #include "cmd.h"
38 #include "event.h"
39 #include "tx.h"
40 #include "hw_ops.h"
41
42 #define WL1271_CMD_FAST_POLL_COUNT 50
43 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20
44
45 /*
46 * send command to firmware
47 *
48 * @wl: wl struct
49 * @id: command id
50 * @buf: buffer containing the command, must work with dma
51 * @len: length of the buffer
52 * return the cmd status code on success.
53 */
__wlcore_cmd_send(struct wl1271 * wl,u16 id,void * buf,size_t len,size_t res_len)54 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
55 size_t len, size_t res_len)
56 {
57 struct wl1271_cmd_header *cmd;
58 unsigned long timeout;
59 u32 intr;
60 int ret;
61 u16 status;
62 u16 poll_count = 0;
63
64 if (unlikely(wl->state == WLCORE_STATE_RESTARTING &&
65 id != CMD_STOP_FWLOGGER))
66 return -EIO;
67
68 if (WARN_ON_ONCE(len < sizeof(*cmd)))
69 return -EIO;
70
71 cmd = buf;
72 cmd->id = cpu_to_le16(id);
73 cmd->status = 0;
74
75 WARN_ON(len % 4 != 0);
76 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
77
78 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
79 if (ret < 0)
80 return ret;
81
82 /*
83 * TODO: we just need this because one bit is in a different
84 * place. Is there any better way?
85 */
86 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
87 if (ret < 0)
88 return ret;
89
90 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
91
92 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
93 if (ret < 0)
94 return ret;
95
96 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
97 if (time_after(jiffies, timeout)) {
98 wl1271_error("command complete timeout");
99 return -ETIMEDOUT;
100 }
101
102 poll_count++;
103 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
104 udelay(10);
105 else
106 msleep(1);
107
108 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
109 if (ret < 0)
110 return ret;
111 }
112
113 /* read back the status code of the command */
114 if (res_len == 0)
115 res_len = sizeof(struct wl1271_cmd_header);
116
117 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
118 if (ret < 0)
119 return ret;
120
121 status = le16_to_cpu(cmd->status);
122
123 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
124 WL1271_ACX_INTR_CMD_COMPLETE);
125 if (ret < 0)
126 return ret;
127
128 return status;
129 }
130
131 /*
132 * send command to fw and return cmd status on success
133 * valid_rets contains a bitmap of allowed error codes
134 */
wlcore_cmd_send_failsafe(struct wl1271 * wl,u16 id,void * buf,size_t len,size_t res_len,unsigned long valid_rets)135 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf,
136 size_t len, size_t res_len,
137 unsigned long valid_rets)
138 {
139 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
140
141 if (ret < 0)
142 goto fail;
143
144 /* success is always a valid status */
145 valid_rets |= BIT(CMD_STATUS_SUCCESS);
146
147 if (ret >= MAX_COMMAND_STATUS ||
148 !test_bit(ret, &valid_rets)) {
149 wl1271_error("command execute failure %d", ret);
150 ret = -EIO;
151 goto fail;
152 }
153 return ret;
154 fail:
155 wl12xx_queue_recovery_work(wl);
156 return ret;
157 }
158
159 /*
160 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
161 * return 0 on success.
162 */
wl1271_cmd_send(struct wl1271 * wl,u16 id,void * buf,size_t len,size_t res_len)163 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
164 size_t res_len)
165 {
166 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
167
168 if (ret < 0)
169 return ret;
170 return 0;
171 }
172 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
173
174 /*
175 * Poll the mailbox event field until any of the bits in the mask is set or a
176 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
177 */
wlcore_cmd_wait_for_event_or_timeout(struct wl1271 * wl,u32 mask,bool * timeout)178 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
179 u32 mask, bool *timeout)
180 {
181 u32 *events_vector;
182 u32 event;
183 unsigned long timeout_time;
184 u16 poll_count = 0;
185 int ret = 0;
186
187 *timeout = false;
188
189 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
190 if (!events_vector)
191 return -ENOMEM;
192
193 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
194
195 ret = pm_runtime_get_sync(wl->dev);
196 if (ret < 0) {
197 pm_runtime_put_noidle(wl->dev);
198 goto free_vector;
199 }
200
201 do {
202 if (time_after(jiffies, timeout_time)) {
203 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
204 (int)mask);
205 *timeout = true;
206 goto out;
207 }
208
209 poll_count++;
210 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
211 usleep_range(50, 51);
212 else
213 usleep_range(1000, 5000);
214
215 /* read from both event fields */
216 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
217 sizeof(*events_vector), false);
218 if (ret < 0)
219 goto out;
220
221 event = *events_vector & mask;
222
223 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
224 sizeof(*events_vector), false);
225 if (ret < 0)
226 goto out;
227
228 event |= *events_vector & mask;
229 } while (!event);
230
231 out:
232 pm_runtime_mark_last_busy(wl->dev);
233 pm_runtime_put_autosuspend(wl->dev);
234 free_vector:
235 kfree(events_vector);
236 return ret;
237 }
238 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
239
wl12xx_cmd_role_enable(struct wl1271 * wl,u8 * addr,u8 role_type,u8 * role_id)240 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
241 u8 *role_id)
242 {
243 struct wl12xx_cmd_role_enable *cmd;
244 int ret;
245
246 wl1271_debug(DEBUG_CMD, "cmd role enable");
247
248 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
249 return -EBUSY;
250
251 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
252 if (!cmd) {
253 ret = -ENOMEM;
254 goto out;
255 }
256
257 /* get role id */
258 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
259 if (cmd->role_id >= WL12XX_MAX_ROLES) {
260 ret = -EBUSY;
261 goto out_free;
262 }
263
264 memcpy(cmd->mac_address, addr, ETH_ALEN);
265 cmd->role_type = role_type;
266
267 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
268 if (ret < 0) {
269 wl1271_error("failed to initiate cmd role enable");
270 goto out_free;
271 }
272
273 __set_bit(cmd->role_id, wl->roles_map);
274 *role_id = cmd->role_id;
275
276 out_free:
277 kfree(cmd);
278
279 out:
280 return ret;
281 }
282
wl12xx_cmd_role_disable(struct wl1271 * wl,u8 * role_id)283 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
284 {
285 struct wl12xx_cmd_role_disable *cmd;
286 int ret;
287
288 wl1271_debug(DEBUG_CMD, "cmd role disable");
289
290 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
291 return -ENOENT;
292
293 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
294 if (!cmd) {
295 ret = -ENOMEM;
296 goto out;
297 }
298 cmd->role_id = *role_id;
299
300 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
301 if (ret < 0) {
302 wl1271_error("failed to initiate cmd role disable");
303 goto out_free;
304 }
305
306 __clear_bit(*role_id, wl->roles_map);
307 *role_id = WL12XX_INVALID_ROLE_ID;
308
309 out_free:
310 kfree(cmd);
311
312 out:
313 return ret;
314 }
315
wlcore_get_new_session_id(struct wl1271 * wl,u8 hlid)316 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
317 {
318 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
319 wl->session_ids[hlid] = 0;
320
321 wl->session_ids[hlid]++;
322
323 return wl->session_ids[hlid];
324 }
325
wl12xx_allocate_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)326 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
327 {
328 unsigned long flags;
329 u8 link = find_first_zero_bit(wl->links_map, wl->num_links);
330 if (link >= wl->num_links)
331 return -EBUSY;
332
333 wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
334
335 /* these bits are used by op_tx */
336 spin_lock_irqsave(&wl->wl_lock, flags);
337 __set_bit(link, wl->links_map);
338 __set_bit(link, wlvif->links_map);
339 spin_unlock_irqrestore(&wl->wl_lock, flags);
340
341 /*
342 * take the last "freed packets" value from the current FW status.
343 * on recovery, we might not have fw_status yet, and
344 * tx_lnk_free_pkts will be NULL. check for it.
345 */
346 if (wl->fw_status->counters.tx_lnk_free_pkts)
347 wl->links[link].prev_freed_pkts =
348 wl->fw_status->counters.tx_lnk_free_pkts[link];
349 wl->links[link].wlvif = wlvif;
350
351 /*
352 * Take saved value for total freed packets from wlvif, in case this is
353 * recovery/resume
354 */
355 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
356 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
357
358 *hlid = link;
359
360 wl->active_link_count++;
361 return 0;
362 }
363
wl12xx_free_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)364 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
365 {
366 unsigned long flags;
367
368 if (*hlid == WL12XX_INVALID_LINK_ID)
369 return;
370
371 /* these bits are used by op_tx */
372 spin_lock_irqsave(&wl->wl_lock, flags);
373 __clear_bit(*hlid, wl->links_map);
374 __clear_bit(*hlid, wlvif->links_map);
375 spin_unlock_irqrestore(&wl->wl_lock, flags);
376
377 wl->links[*hlid].allocated_pkts = 0;
378 wl->links[*hlid].prev_freed_pkts = 0;
379 wl->links[*hlid].ba_bitmap = 0;
380 eth_zero_addr(wl->links[*hlid].addr);
381
382 /*
383 * At this point op_tx() will not add more packets to the queues. We
384 * can purge them.
385 */
386 wl1271_tx_reset_link_queues(wl, *hlid);
387 wl->links[*hlid].wlvif = NULL;
388
389 if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
390 *hlid == wlvif->ap.bcast_hlid) {
391 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
392 /*
393 * save the total freed packets in the wlvif, in case this is
394 * recovery or suspend
395 */
396 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
397
398 /*
399 * increment the initial seq number on recovery to account for
400 * transmitted packets that we haven't yet got in the FW status
401 */
402 if (wlvif->encryption_type == KEY_GEM)
403 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
404
405 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
406 wlvif->total_freed_pkts += sqn_padding;
407 }
408
409 wl->links[*hlid].total_freed_pkts = 0;
410
411 *hlid = WL12XX_INVALID_LINK_ID;
412 wl->active_link_count--;
413 WARN_ON_ONCE(wl->active_link_count < 0);
414 }
415
wlcore_get_native_channel_type(u8 nl_channel_type)416 u8 wlcore_get_native_channel_type(u8 nl_channel_type)
417 {
418 switch (nl_channel_type) {
419 case NL80211_CHAN_NO_HT:
420 return WLCORE_CHAN_NO_HT;
421 case NL80211_CHAN_HT20:
422 return WLCORE_CHAN_HT20;
423 case NL80211_CHAN_HT40MINUS:
424 return WLCORE_CHAN_HT40MINUS;
425 case NL80211_CHAN_HT40PLUS:
426 return WLCORE_CHAN_HT40PLUS;
427 default:
428 WARN_ON(1);
429 return WLCORE_CHAN_NO_HT;
430 }
431 }
432 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
433
wl12xx_cmd_role_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif,enum nl80211_band band,int channel)434 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
435 struct wl12xx_vif *wlvif,
436 enum nl80211_band band,
437 int channel)
438 {
439 struct wl12xx_cmd_role_start *cmd;
440 int ret;
441
442 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
443 if (!cmd) {
444 ret = -ENOMEM;
445 goto out;
446 }
447
448 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
449
450 cmd->role_id = wlvif->dev_role_id;
451 if (band == NL80211_BAND_5GHZ)
452 cmd->band = WLCORE_BAND_5GHZ;
453 cmd->channel = channel;
454
455 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
456 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
457 if (ret)
458 goto out_free;
459 }
460 cmd->device.hlid = wlvif->dev_hlid;
461 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
462
463 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
464 cmd->role_id, cmd->device.hlid, cmd->device.session);
465
466 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
467 if (ret < 0) {
468 wl1271_error("failed to initiate cmd role enable");
469 goto err_hlid;
470 }
471
472 goto out_free;
473
474 err_hlid:
475 /* clear links on error */
476 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
477
478 out_free:
479 kfree(cmd);
480
481 out:
482 return ret;
483 }
484
wl12xx_cmd_role_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)485 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
486 struct wl12xx_vif *wlvif)
487 {
488 struct wl12xx_cmd_role_stop *cmd;
489 int ret;
490
491 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
492 return -EINVAL;
493
494 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
495 if (!cmd) {
496 ret = -ENOMEM;
497 goto out;
498 }
499
500 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
501
502 cmd->role_id = wlvif->dev_role_id;
503 cmd->disc_type = DISCONNECT_IMMEDIATE;
504 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
505
506 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
507 if (ret < 0) {
508 wl1271_error("failed to initiate cmd role stop");
509 goto out_free;
510 }
511
512 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
513
514 out_free:
515 kfree(cmd);
516
517 out:
518 return ret;
519 }
520
wl12xx_cmd_role_start_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)521 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
522 {
523 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
524 struct wl12xx_cmd_role_start *cmd;
525 u32 supported_rates;
526 int ret;
527
528 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
529 if (!cmd) {
530 ret = -ENOMEM;
531 goto out;
532 }
533
534 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
535
536 cmd->role_id = wlvif->role_id;
537 if (wlvif->band == NL80211_BAND_5GHZ)
538 cmd->band = WLCORE_BAND_5GHZ;
539 cmd->channel = wlvif->channel;
540 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
541 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
542 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
543 cmd->sta.ssid_len = wlvif->ssid_len;
544 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
545 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
546
547 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
548 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
549 if (wlvif->p2p)
550 supported_rates &= ~CONF_TX_CCK_RATES;
551
552 cmd->sta.local_rates = cpu_to_le32(supported_rates);
553
554 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
555
556 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
557 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
558 if (ret)
559 goto out_free;
560 }
561 cmd->sta.hlid = wlvif->sta.hlid;
562 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
563 /*
564 * We don't have the correct remote rates in this stage. The
565 * rates will be reconfigured later, after association, if the
566 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
567 * we can do, so use all supported_rates here.
568 */
569 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
570
571 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
572 "basic_rate_set: 0x%x, remote_rates: 0x%x",
573 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
574 wlvif->basic_rate_set, wlvif->rate_set);
575
576 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
577 if (ret < 0) {
578 wl1271_error("failed to initiate cmd role start sta");
579 goto err_hlid;
580 }
581
582 wlvif->sta.role_chan_type = wlvif->channel_type;
583 goto out_free;
584
585 err_hlid:
586 /* clear links on error. */
587 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
588
589 out_free:
590 kfree(cmd);
591
592 out:
593 return ret;
594 }
595
596 /* use this function to stop ibss as well */
wl12xx_cmd_role_stop_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)597 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
598 {
599 struct wl12xx_cmd_role_stop *cmd;
600 int ret;
601
602 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
603 return -EINVAL;
604
605 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
606 if (!cmd) {
607 ret = -ENOMEM;
608 goto out;
609 }
610
611 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
612
613 cmd->role_id = wlvif->role_id;
614 cmd->disc_type = DISCONNECT_IMMEDIATE;
615 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
616
617 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
618 if (ret < 0) {
619 wl1271_error("failed to initiate cmd role stop sta");
620 goto out_free;
621 }
622
623 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
624
625 out_free:
626 kfree(cmd);
627
628 out:
629 return ret;
630 }
631
wl12xx_cmd_role_start_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)632 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
633 {
634 struct wl12xx_cmd_role_start *cmd;
635 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
636 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
637 u32 supported_rates;
638 int ret;
639
640 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
641
642 /* If MESH --> ssid_len is always 0 */
643 if (!ieee80211_vif_is_mesh(vif)) {
644 /* trying to use hidden SSID with an old hostapd version */
645 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
646 wl1271_error("got a null SSID from beacon/bss");
647 ret = -EINVAL;
648 goto out;
649 }
650 }
651
652 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
653 if (!cmd) {
654 ret = -ENOMEM;
655 goto out;
656 }
657
658 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
659 if (ret < 0)
660 goto out_free;
661
662 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
663 if (ret < 0)
664 goto out_free_global;
665
666 /* use the previous security seq, if this is a recovery/resume */
667 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
668 wlvif->total_freed_pkts;
669
670 cmd->role_id = wlvif->role_id;
671 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
672 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
673 cmd->ap.global_hlid = wlvif->ap.global_hlid;
674 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
675 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
676 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
677 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
678 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
679 cmd->ap.dtim_interval = bss_conf->dtim_period;
680 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
681 /* FIXME: Change when adding DFS */
682 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
683 cmd->ap.wmm = wlvif->wmm_enabled;
684 cmd->channel = wlvif->channel;
685 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
686
687 if (!bss_conf->hidden_ssid) {
688 /* take the SSID from the beacon for backward compatibility */
689 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
690 cmd->ap.ssid_len = wlvif->ssid_len;
691 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
692 } else {
693 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
694 cmd->ap.ssid_len = bss_conf->ssid_len;
695 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
696 }
697
698 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
699 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
700 if (wlvif->p2p)
701 supported_rates &= ~CONF_TX_CCK_RATES;
702
703 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
704 supported_rates);
705
706 cmd->ap.local_rates = cpu_to_le32(supported_rates);
707
708 switch (wlvif->band) {
709 case NL80211_BAND_2GHZ:
710 cmd->band = WLCORE_BAND_2_4GHZ;
711 break;
712 case NL80211_BAND_5GHZ:
713 cmd->band = WLCORE_BAND_5GHZ;
714 break;
715 default:
716 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
717 cmd->band = WLCORE_BAND_2_4GHZ;
718 break;
719 }
720
721 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
722 if (ret < 0) {
723 wl1271_error("failed to initiate cmd role start ap");
724 goto out_free_bcast;
725 }
726
727 goto out_free;
728
729 out_free_bcast:
730 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
731
732 out_free_global:
733 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
734
735 out_free:
736 kfree(cmd);
737
738 out:
739 return ret;
740 }
741
wl12xx_cmd_role_stop_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)742 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
743 {
744 struct wl12xx_cmd_role_stop *cmd;
745 int ret;
746
747 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
748 if (!cmd) {
749 ret = -ENOMEM;
750 goto out;
751 }
752
753 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
754
755 cmd->role_id = wlvif->role_id;
756
757 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
758 if (ret < 0) {
759 wl1271_error("failed to initiate cmd role stop ap");
760 goto out_free;
761 }
762
763 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
764 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
765
766 out_free:
767 kfree(cmd);
768
769 out:
770 return ret;
771 }
772
wl12xx_cmd_role_start_ibss(struct wl1271 * wl,struct wl12xx_vif * wlvif)773 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
774 {
775 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
776 struct wl12xx_cmd_role_start *cmd;
777 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
778 int ret;
779
780 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
781 if (!cmd) {
782 ret = -ENOMEM;
783 goto out;
784 }
785
786 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
787
788 cmd->role_id = wlvif->role_id;
789 if (wlvif->band == NL80211_BAND_5GHZ)
790 cmd->band = WLCORE_BAND_5GHZ;
791 cmd->channel = wlvif->channel;
792 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
793 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
794 cmd->ibss.dtim_interval = bss_conf->dtim_period;
795 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
796 cmd->ibss.ssid_len = wlvif->ssid_len;
797 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
798 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
799 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
800
801 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
802 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
803 if (ret)
804 goto out_free;
805 }
806 cmd->ibss.hlid = wlvif->sta.hlid;
807 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
808
809 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
810 "basic_rate_set: 0x%x, remote_rates: 0x%x",
811 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
812 wlvif->basic_rate_set, wlvif->rate_set);
813
814 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
815 vif->bss_conf.bssid);
816
817 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
818 if (ret < 0) {
819 wl1271_error("failed to initiate cmd role enable");
820 goto err_hlid;
821 }
822
823 goto out_free;
824
825 err_hlid:
826 /* clear links on error. */
827 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
828
829 out_free:
830 kfree(cmd);
831
832 out:
833 return ret;
834 }
835
836
837 /**
838 * send test command to firmware
839 *
840 * @wl: wl struct
841 * @buf: buffer containing the command, with all headers, must work with dma
842 * @len: length of the buffer
843 * @answer: is answer needed
844 */
wl1271_cmd_test(struct wl1271 * wl,void * buf,size_t buf_len,u8 answer)845 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
846 {
847 int ret;
848 size_t res_len = 0;
849
850 wl1271_debug(DEBUG_CMD, "cmd test");
851
852 if (answer)
853 res_len = buf_len;
854
855 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
856
857 if (ret < 0) {
858 wl1271_warning("TEST command failed");
859 return ret;
860 }
861
862 return ret;
863 }
864 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
865
866 /**
867 * read acx from firmware
868 *
869 * @wl: wl struct
870 * @id: acx id
871 * @buf: buffer for the response, including all headers, must work with dma
872 * @len: length of buf
873 */
wl1271_cmd_interrogate(struct wl1271 * wl,u16 id,void * buf,size_t cmd_len,size_t res_len)874 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
875 size_t cmd_len, size_t res_len)
876 {
877 struct acx_header *acx = buf;
878 int ret;
879
880 wl1271_debug(DEBUG_CMD, "cmd interrogate");
881
882 acx->id = cpu_to_le16(id);
883
884 /* response payload length, does not include any headers */
885 acx->len = cpu_to_le16(res_len - sizeof(*acx));
886
887 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
888 if (ret < 0)
889 wl1271_error("INTERROGATE command failed");
890
891 return ret;
892 }
893
894 /**
895 * write acx value to firmware
896 *
897 * @wl: wl struct
898 * @id: acx id
899 * @buf: buffer containing acx, including all headers, must work with dma
900 * @len: length of buf
901 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
902 * return the cmd status on success.
903 */
wlcore_cmd_configure_failsafe(struct wl1271 * wl,u16 id,void * buf,size_t len,unsigned long valid_rets)904 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
905 size_t len, unsigned long valid_rets)
906 {
907 struct acx_header *acx = buf;
908 int ret;
909
910 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
911
912 if (WARN_ON_ONCE(len < sizeof(*acx)))
913 return -EIO;
914
915 acx->id = cpu_to_le16(id);
916
917 /* payload length, does not include any headers */
918 acx->len = cpu_to_le16(len - sizeof(*acx));
919
920 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
921 valid_rets);
922 if (ret < 0) {
923 wl1271_warning("CONFIGURE command NOK");
924 return ret;
925 }
926
927 return ret;
928 }
929
930 /*
931 * wrapper for wlcore_cmd_configure that accepts only success status.
932 * return 0 on success
933 */
wl1271_cmd_configure(struct wl1271 * wl,u16 id,void * buf,size_t len)934 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
935 {
936 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
937
938 if (ret < 0)
939 return ret;
940 return 0;
941 }
942 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
943
wl1271_cmd_data_path(struct wl1271 * wl,bool enable)944 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
945 {
946 struct cmd_enabledisable_path *cmd;
947 int ret;
948 u16 cmd_rx, cmd_tx;
949
950 wl1271_debug(DEBUG_CMD, "cmd data path");
951
952 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
953 if (!cmd) {
954 ret = -ENOMEM;
955 goto out;
956 }
957
958 /* the channel here is only used for calibration, so hardcoded to 1 */
959 cmd->channel = 1;
960
961 if (enable) {
962 cmd_rx = CMD_ENABLE_RX;
963 cmd_tx = CMD_ENABLE_TX;
964 } else {
965 cmd_rx = CMD_DISABLE_RX;
966 cmd_tx = CMD_DISABLE_TX;
967 }
968
969 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
970 if (ret < 0) {
971 wl1271_error("rx %s cmd for channel %d failed",
972 enable ? "start" : "stop", cmd->channel);
973 goto out;
974 }
975
976 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
977 enable ? "start" : "stop", cmd->channel);
978
979 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
980 if (ret < 0) {
981 wl1271_error("tx %s cmd for channel %d failed",
982 enable ? "start" : "stop", cmd->channel);
983 goto out;
984 }
985
986 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
987 enable ? "start" : "stop", cmd->channel);
988
989 out:
990 kfree(cmd);
991 return ret;
992 }
993 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
994
wl1271_cmd_ps_mode(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 ps_mode,u16 auto_ps_timeout)995 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
996 u8 ps_mode, u16 auto_ps_timeout)
997 {
998 struct wl1271_cmd_ps_params *ps_params = NULL;
999 int ret = 0;
1000
1001 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
1002
1003 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
1004 if (!ps_params) {
1005 ret = -ENOMEM;
1006 goto out;
1007 }
1008
1009 ps_params->role_id = wlvif->role_id;
1010 ps_params->ps_mode = ps_mode;
1011 ps_params->auto_ps_timeout = auto_ps_timeout;
1012
1013 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1014 sizeof(*ps_params), 0);
1015 if (ret < 0) {
1016 wl1271_error("cmd set_ps_mode failed");
1017 goto out;
1018 }
1019
1020 out:
1021 kfree(ps_params);
1022 return ret;
1023 }
1024
wl1271_cmd_template_set(struct wl1271 * wl,u8 role_id,u16 template_id,void * buf,size_t buf_len,int index,u32 rates)1025 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1026 u16 template_id, void *buf, size_t buf_len,
1027 int index, u32 rates)
1028 {
1029 struct wl1271_cmd_template_set *cmd;
1030 int ret = 0;
1031
1032 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1033 template_id, role_id);
1034
1035 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1036 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1037
1038 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1039 if (!cmd) {
1040 ret = -ENOMEM;
1041 goto out;
1042 }
1043
1044 /* during initialization wlvif is NULL */
1045 cmd->role_id = role_id;
1046 cmd->len = cpu_to_le16(buf_len);
1047 cmd->template_type = template_id;
1048 cmd->enabled_rates = cpu_to_le32(rates);
1049 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1050 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1051 cmd->index = index;
1052
1053 if (buf)
1054 memcpy(cmd->template_data, buf, buf_len);
1055
1056 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1057 if (ret < 0) {
1058 wl1271_warning("cmd set_template failed: %d", ret);
1059 goto out_free;
1060 }
1061
1062 out_free:
1063 kfree(cmd);
1064
1065 out:
1066 return ret;
1067 }
1068
wl12xx_cmd_build_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1069 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1070 {
1071 struct sk_buff *skb = NULL;
1072 int size;
1073 void *ptr;
1074 int ret = -ENOMEM;
1075
1076
1077 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1078 size = sizeof(struct wl12xx_null_data_template);
1079 ptr = NULL;
1080 } else {
1081 skb = ieee80211_nullfunc_get(wl->hw,
1082 wl12xx_wlvif_to_vif(wlvif),
1083 false);
1084 if (!skb)
1085 goto out;
1086 size = skb->len;
1087 ptr = skb->data;
1088 }
1089
1090 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1091 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1092 wlvif->basic_rate);
1093
1094 out:
1095 dev_kfree_skb(skb);
1096 if (ret)
1097 wl1271_warning("cmd buld null data failed %d", ret);
1098
1099 return ret;
1100
1101 }
1102
wl12xx_cmd_build_klv_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1103 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1104 struct wl12xx_vif *wlvif)
1105 {
1106 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1107 struct sk_buff *skb = NULL;
1108 int ret = -ENOMEM;
1109
1110 skb = ieee80211_nullfunc_get(wl->hw, vif, false);
1111 if (!skb)
1112 goto out;
1113
1114 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1115 skb->data, skb->len,
1116 wlvif->sta.klv_template_id,
1117 wlvif->basic_rate);
1118
1119 out:
1120 dev_kfree_skb(skb);
1121 if (ret)
1122 wl1271_warning("cmd build klv null data failed %d", ret);
1123
1124 return ret;
1125
1126 }
1127
wl1271_cmd_build_ps_poll(struct wl1271 * wl,struct wl12xx_vif * wlvif,u16 aid)1128 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1129 u16 aid)
1130 {
1131 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1132 struct sk_buff *skb;
1133 int ret = 0;
1134
1135 skb = ieee80211_pspoll_get(wl->hw, vif);
1136 if (!skb)
1137 goto out;
1138
1139 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1140 CMD_TEMPL_PS_POLL, skb->data,
1141 skb->len, 0, wlvif->basic_rate_set);
1142
1143 out:
1144 dev_kfree_skb(skb);
1145 return ret;
1146 }
1147
wl12xx_cmd_build_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id,u8 band,const u8 * ssid,size_t ssid_len,const u8 * ie0,size_t ie0_len,const u8 * ie1,size_t ie1_len,bool sched_scan)1148 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1149 u8 role_id, u8 band,
1150 const u8 *ssid, size_t ssid_len,
1151 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1152 size_t ie1_len, bool sched_scan)
1153 {
1154 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1155 struct sk_buff *skb;
1156 int ret;
1157 u32 rate;
1158 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1159 u16 template_id_5 = wl->scan_templ_id_5;
1160
1161 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1162
1163 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1164 ie0_len + ie1_len);
1165 if (!skb) {
1166 ret = -ENOMEM;
1167 goto out;
1168 }
1169 if (ie0_len)
1170 skb_put_data(skb, ie0, ie0_len);
1171 if (ie1_len)
1172 skb_put_data(skb, ie1, ie1_len);
1173
1174 if (sched_scan &&
1175 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1176 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1177 template_id_5 = wl->sched_scan_templ_id_5;
1178 }
1179
1180 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1181 if (band == NL80211_BAND_2GHZ)
1182 ret = wl1271_cmd_template_set(wl, role_id,
1183 template_id_2_4,
1184 skb->data, skb->len, 0, rate);
1185 else
1186 ret = wl1271_cmd_template_set(wl, role_id,
1187 template_id_5,
1188 skb->data, skb->len, 0, rate);
1189
1190 out:
1191 dev_kfree_skb(skb);
1192 return ret;
1193 }
1194 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1195
wl1271_cmd_build_ap_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct sk_buff * skb)1196 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1197 struct wl12xx_vif *wlvif,
1198 struct sk_buff *skb)
1199 {
1200 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1201 int ret;
1202 u32 rate;
1203
1204 if (!skb)
1205 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1206 if (!skb)
1207 goto out;
1208
1209 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1210
1211 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1212 if (wlvif->band == NL80211_BAND_2GHZ)
1213 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1214 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1215 skb->data, skb->len, 0, rate);
1216 else
1217 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1218 CMD_TEMPL_CFG_PROBE_REQ_5,
1219 skb->data, skb->len, 0, rate);
1220
1221 if (ret < 0)
1222 wl1271_error("Unable to set ap probe request template.");
1223
1224 out:
1225 return skb;
1226 }
1227
wl1271_cmd_build_arp_rsp(struct wl1271 * wl,struct wl12xx_vif * wlvif)1228 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1229 {
1230 int ret, extra = 0;
1231 u16 fc;
1232 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1233 struct sk_buff *skb;
1234 struct wl12xx_arp_rsp_template *tmpl;
1235 struct ieee80211_hdr_3addr *hdr;
1236 struct arphdr *arp_hdr;
1237
1238 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1239 WL1271_EXTRA_SPACE_MAX);
1240 if (!skb) {
1241 wl1271_error("failed to allocate buffer for arp rsp template");
1242 return -ENOMEM;
1243 }
1244
1245 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1246
1247 tmpl = skb_put_zero(skb, sizeof(*tmpl));
1248
1249 /* llc layer */
1250 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1251 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1252
1253 /* arp header */
1254 arp_hdr = &tmpl->arp_hdr;
1255 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1256 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1257 arp_hdr->ar_hln = ETH_ALEN;
1258 arp_hdr->ar_pln = 4;
1259 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1260
1261 /* arp payload */
1262 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1263 tmpl->sender_ip = wlvif->ip_addr;
1264
1265 /* encryption space */
1266 switch (wlvif->encryption_type) {
1267 case KEY_TKIP:
1268 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1269 extra = WL1271_EXTRA_SPACE_TKIP;
1270 break;
1271 case KEY_AES:
1272 extra = WL1271_EXTRA_SPACE_AES;
1273 break;
1274 case KEY_NONE:
1275 case KEY_WEP:
1276 case KEY_GEM:
1277 extra = 0;
1278 break;
1279 default:
1280 wl1271_warning("Unknown encryption type: %d",
1281 wlvif->encryption_type);
1282 ret = -EINVAL;
1283 goto out;
1284 }
1285
1286 if (extra) {
1287 u8 *space = skb_push(skb, extra);
1288 memset(space, 0, extra);
1289 }
1290
1291 /* QoS header - BE */
1292 if (wlvif->sta.qos)
1293 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1294
1295 /* mac80211 header */
1296 hdr = skb_push(skb, sizeof(*hdr));
1297 memset(hdr, 0, sizeof(*hdr));
1298 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1299 if (wlvif->sta.qos)
1300 fc |= IEEE80211_STYPE_QOS_DATA;
1301 else
1302 fc |= IEEE80211_STYPE_DATA;
1303 if (wlvif->encryption_type != KEY_NONE)
1304 fc |= IEEE80211_FCTL_PROTECTED;
1305
1306 hdr->frame_control = cpu_to_le16(fc);
1307 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1308 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1309 eth_broadcast_addr(hdr->addr3);
1310
1311 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1312 skb->data, skb->len, 0,
1313 wlvif->basic_rate);
1314 out:
1315 dev_kfree_skb(skb);
1316 return ret;
1317 }
1318
wl1271_build_qos_null_data(struct wl1271 * wl,struct ieee80211_vif * vif)1319 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1320 {
1321 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1322 struct ieee80211_qos_hdr template;
1323
1324 memset(&template, 0, sizeof(template));
1325
1326 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1327 memcpy(template.addr2, vif->addr, ETH_ALEN);
1328 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1329
1330 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1331 IEEE80211_STYPE_QOS_NULLFUNC |
1332 IEEE80211_FCTL_TODS);
1333
1334 /* FIXME: not sure what priority to use here */
1335 template.qos_ctrl = cpu_to_le16(0);
1336
1337 return wl1271_cmd_template_set(wl, wlvif->role_id,
1338 CMD_TEMPL_QOS_NULL_DATA, &template,
1339 sizeof(template), 0,
1340 wlvif->basic_rate);
1341 }
1342
wl12xx_cmd_set_default_wep_key(struct wl1271 * wl,u8 id,u8 hlid)1343 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1344 {
1345 struct wl1271_cmd_set_keys *cmd;
1346 int ret = 0;
1347
1348 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1349
1350 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1351 if (!cmd) {
1352 ret = -ENOMEM;
1353 goto out;
1354 }
1355
1356 cmd->hlid = hlid;
1357 cmd->key_id = id;
1358 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1359 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1360 cmd->key_type = KEY_WEP;
1361
1362 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1363 if (ret < 0) {
1364 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1365 goto out;
1366 }
1367
1368 out:
1369 kfree(cmd);
1370
1371 return ret;
1372 }
1373
wl1271_cmd_set_sta_key(struct wl1271 * wl,struct wl12xx_vif * wlvif,u16 action,u8 id,u8 key_type,u8 key_size,const u8 * key,const u8 * addr,u32 tx_seq_32,u16 tx_seq_16)1374 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1375 u16 action, u8 id, u8 key_type,
1376 u8 key_size, const u8 *key, const u8 *addr,
1377 u32 tx_seq_32, u16 tx_seq_16)
1378 {
1379 struct wl1271_cmd_set_keys *cmd;
1380 int ret = 0;
1381
1382 /* hlid might have already been deleted */
1383 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1384 return 0;
1385
1386 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1387 if (!cmd) {
1388 ret = -ENOMEM;
1389 goto out;
1390 }
1391
1392 cmd->hlid = wlvif->sta.hlid;
1393
1394 if (key_type == KEY_WEP)
1395 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1396 else if (is_broadcast_ether_addr(addr))
1397 cmd->lid_key_type = BROADCAST_LID_TYPE;
1398 else
1399 cmd->lid_key_type = UNICAST_LID_TYPE;
1400
1401 cmd->key_action = cpu_to_le16(action);
1402 cmd->key_size = key_size;
1403 cmd->key_type = key_type;
1404
1405 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1406 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1407
1408 cmd->key_id = id;
1409
1410 if (key_type == KEY_TKIP) {
1411 /*
1412 * We get the key in the following form:
1413 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1414 * but the target is expecting:
1415 * TKIP - RX MIC - TX MIC
1416 */
1417 memcpy(cmd->key, key, 16);
1418 memcpy(cmd->key + 16, key + 24, 8);
1419 memcpy(cmd->key + 24, key + 16, 8);
1420
1421 } else {
1422 memcpy(cmd->key, key, key_size);
1423 }
1424
1425 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1426
1427 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1428 if (ret < 0) {
1429 wl1271_warning("could not set keys");
1430 goto out;
1431 }
1432
1433 out:
1434 kfree(cmd);
1435
1436 return ret;
1437 }
1438
1439 /*
1440 * TODO: merge with sta/ibss into 1 set_key function.
1441 * note there are slight diffs
1442 */
wl1271_cmd_set_ap_key(struct wl1271 * wl,struct wl12xx_vif * wlvif,u16 action,u8 id,u8 key_type,u8 key_size,const u8 * key,u8 hlid,u32 tx_seq_32,u16 tx_seq_16)1443 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1444 u16 action, u8 id, u8 key_type,
1445 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1446 u16 tx_seq_16)
1447 {
1448 struct wl1271_cmd_set_keys *cmd;
1449 int ret = 0;
1450 u8 lid_type;
1451
1452 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1453 if (!cmd)
1454 return -ENOMEM;
1455
1456 if (hlid == wlvif->ap.bcast_hlid) {
1457 if (key_type == KEY_WEP)
1458 lid_type = WEP_DEFAULT_LID_TYPE;
1459 else
1460 lid_type = BROADCAST_LID_TYPE;
1461 } else {
1462 lid_type = UNICAST_LID_TYPE;
1463 }
1464
1465 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1466 " hlid: %d", (int)action, (int)id, (int)lid_type,
1467 (int)key_type, (int)hlid);
1468
1469 cmd->lid_key_type = lid_type;
1470 cmd->hlid = hlid;
1471 cmd->key_action = cpu_to_le16(action);
1472 cmd->key_size = key_size;
1473 cmd->key_type = key_type;
1474 cmd->key_id = id;
1475 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1476 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1477
1478 if (key_type == KEY_TKIP) {
1479 /*
1480 * We get the key in the following form:
1481 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1482 * but the target is expecting:
1483 * TKIP - RX MIC - TX MIC
1484 */
1485 memcpy(cmd->key, key, 16);
1486 memcpy(cmd->key + 16, key + 24, 8);
1487 memcpy(cmd->key + 24, key + 16, 8);
1488 } else {
1489 memcpy(cmd->key, key, key_size);
1490 }
1491
1492 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1493
1494 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1495 if (ret < 0) {
1496 wl1271_warning("could not set ap keys");
1497 goto out;
1498 }
1499
1500 out:
1501 kfree(cmd);
1502 return ret;
1503 }
1504
wl12xx_cmd_set_peer_state(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 hlid)1505 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1506 u8 hlid)
1507 {
1508 struct wl12xx_cmd_set_peer_state *cmd;
1509 int ret = 0;
1510
1511 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1512
1513 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1514 if (!cmd) {
1515 ret = -ENOMEM;
1516 goto out;
1517 }
1518
1519 cmd->hlid = hlid;
1520 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1521
1522 /* wmm param is valid only for station role */
1523 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1524 cmd->wmm = wlvif->wmm_enabled;
1525
1526 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1527 if (ret < 0) {
1528 wl1271_error("failed to send set peer state command");
1529 goto out_free;
1530 }
1531
1532 out_free:
1533 kfree(cmd);
1534
1535 out:
1536 return ret;
1537 }
1538
wl12xx_cmd_add_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct ieee80211_sta * sta,u8 hlid)1539 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1540 struct ieee80211_sta *sta, u8 hlid)
1541 {
1542 struct wl12xx_cmd_add_peer *cmd;
1543 int i, ret;
1544 u32 sta_rates;
1545
1546 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1547
1548 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1549 if (!cmd) {
1550 ret = -ENOMEM;
1551 goto out;
1552 }
1553
1554 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1555 cmd->bss_index = WL1271_AP_BSS_INDEX;
1556 cmd->aid = sta->aid;
1557 cmd->hlid = hlid;
1558 cmd->sp_len = sta->max_sp;
1559 cmd->wmm = sta->wme ? 1 : 0;
1560 cmd->session_id = wl->session_ids[hlid];
1561 cmd->role_id = wlvif->role_id;
1562
1563 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1564 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1565 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1566 WL1271_PSD_UPSD_TRIGGER;
1567 else
1568 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1569 WL1271_PSD_LEGACY;
1570
1571
1572 sta_rates = sta->supp_rates[wlvif->band];
1573 if (sta->ht_cap.ht_supported)
1574 sta_rates |=
1575 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1576 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1577
1578 cmd->supported_rates =
1579 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1580 wlvif->band));
1581
1582 if (!cmd->supported_rates) {
1583 wl1271_debug(DEBUG_CMD,
1584 "peer has no supported rates yet, configuring basic rates: 0x%x",
1585 wlvif->basic_rate_set);
1586 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set);
1587 }
1588
1589 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1590 cmd->supported_rates, sta->uapsd_queues);
1591
1592 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1593 if (ret < 0) {
1594 wl1271_error("failed to initiate cmd add peer");
1595 goto out_free;
1596 }
1597
1598 out_free:
1599 kfree(cmd);
1600
1601 out:
1602 return ret;
1603 }
1604
wl12xx_cmd_remove_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 hlid)1605 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1606 u8 hlid)
1607 {
1608 struct wl12xx_cmd_remove_peer *cmd;
1609 int ret;
1610 bool timeout = false;
1611
1612 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1613
1614 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1615 if (!cmd) {
1616 ret = -ENOMEM;
1617 goto out;
1618 }
1619
1620 cmd->hlid = hlid;
1621 /* We never send a deauth, mac80211 is in charge of this */
1622 cmd->reason_opcode = 0;
1623 cmd->send_deauth_flag = 0;
1624 cmd->role_id = wlvif->role_id;
1625
1626 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1627 if (ret < 0) {
1628 wl1271_error("failed to initiate cmd remove peer");
1629 goto out_free;
1630 }
1631
1632 ret = wl->ops->wait_for_event(wl,
1633 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1634 &timeout);
1635
1636 /*
1637 * We are ok with a timeout here. The event is sometimes not sent
1638 * due to a firmware bug. In case of another error (like SDIO timeout)
1639 * queue a recovery.
1640 */
1641 if (ret)
1642 wl12xx_queue_recovery_work(wl);
1643
1644 out_free:
1645 kfree(cmd);
1646
1647 out:
1648 return ret;
1649 }
1650
wlcore_get_reg_conf_ch_idx(enum nl80211_band band,u16 ch)1651 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1652 {
1653 /*
1654 * map the given band/channel to the respective predefined
1655 * bit expected by the fw
1656 */
1657 switch (band) {
1658 case NL80211_BAND_2GHZ:
1659 /* channels 1..14 are mapped to 0..13 */
1660 if (ch >= 1 && ch <= 14)
1661 return ch - 1;
1662 break;
1663 case NL80211_BAND_5GHZ:
1664 switch (ch) {
1665 case 8 ... 16:
1666 /* channels 8,12,16 are mapped to 18,19,20 */
1667 return 18 + (ch-8)/4;
1668 case 34 ... 48:
1669 /* channels 34,36..48 are mapped to 21..28 */
1670 return 21 + (ch-34)/2;
1671 case 52 ... 64:
1672 /* channels 52,56..64 are mapped to 29..32 */
1673 return 29 + (ch-52)/4;
1674 case 100 ... 140:
1675 /* channels 100,104..140 are mapped to 33..43 */
1676 return 33 + (ch-100)/4;
1677 case 149 ... 165:
1678 /* channels 149,153..165 are mapped to 44..48 */
1679 return 44 + (ch-149)/4;
1680 default:
1681 break;
1682 }
1683 break;
1684 default:
1685 break;
1686 }
1687
1688 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1689 return -1;
1690 }
1691
wlcore_set_pending_regdomain_ch(struct wl1271 * wl,u16 channel,enum nl80211_band band)1692 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1693 enum nl80211_band band)
1694 {
1695 int ch_bit_idx = 0;
1696
1697 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1698 return;
1699
1700 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1701
1702 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1703 set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1704 }
1705
wlcore_cmd_regdomain_config_locked(struct wl1271 * wl)1706 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1707 {
1708 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1709 int ret = 0, i, b, ch_bit_idx;
1710 u32 tmp_ch_bitmap[2];
1711 struct wiphy *wiphy = wl->hw->wiphy;
1712 struct ieee80211_supported_band *band;
1713 bool timeout = false;
1714
1715 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1716 return 0;
1717
1718 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1719
1720 memset(tmp_ch_bitmap, 0, sizeof(tmp_ch_bitmap));
1721
1722 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1723 band = wiphy->bands[b];
1724 for (i = 0; i < band->n_channels; i++) {
1725 struct ieee80211_channel *channel = &band->channels[i];
1726 u16 ch = channel->hw_value;
1727 u32 flags = channel->flags;
1728
1729 if (flags & (IEEE80211_CHAN_DISABLED |
1730 IEEE80211_CHAN_NO_IR))
1731 continue;
1732
1733 if ((flags & IEEE80211_CHAN_RADAR) &&
1734 channel->dfs_state != NL80211_DFS_AVAILABLE)
1735 continue;
1736
1737 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1738 if (ch_bit_idx < 0)
1739 continue;
1740
1741 set_bit(ch_bit_idx, (long *)tmp_ch_bitmap);
1742 }
1743 }
1744
1745 tmp_ch_bitmap[0] |= wl->reg_ch_conf_pending[0];
1746 tmp_ch_bitmap[1] |= wl->reg_ch_conf_pending[1];
1747
1748 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1749 goto out;
1750
1751 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1752 if (!cmd) {
1753 ret = -ENOMEM;
1754 goto out;
1755 }
1756
1757 cmd->ch_bit_map1 = cpu_to_le32(tmp_ch_bitmap[0]);
1758 cmd->ch_bit_map2 = cpu_to_le32(tmp_ch_bitmap[1]);
1759 cmd->dfs_region = wl->dfs_region;
1760
1761 wl1271_debug(DEBUG_CMD,
1762 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1763 cmd->ch_bit_map1, cmd->ch_bit_map2);
1764
1765 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1766 if (ret < 0) {
1767 wl1271_error("failed to send reg domain dfs config");
1768 goto out;
1769 }
1770
1771 ret = wl->ops->wait_for_event(wl,
1772 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1773 &timeout);
1774 if (ret < 0 || timeout) {
1775 wl1271_error("reg domain conf %serror",
1776 timeout ? "completion " : "");
1777 ret = timeout ? -ETIMEDOUT : ret;
1778 goto out;
1779 }
1780
1781 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1782 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1783
1784 out:
1785 kfree(cmd);
1786 return ret;
1787 }
1788
wl12xx_cmd_config_fwlog(struct wl1271 * wl)1789 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1790 {
1791 struct wl12xx_cmd_config_fwlog *cmd;
1792 int ret = 0;
1793
1794 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1795
1796 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1797 if (!cmd) {
1798 ret = -ENOMEM;
1799 goto out;
1800 }
1801
1802 cmd->logger_mode = wl->conf.fwlog.mode;
1803 cmd->log_severity = wl->conf.fwlog.severity;
1804 cmd->timestamp = wl->conf.fwlog.timestamp;
1805 cmd->output = wl->conf.fwlog.output;
1806 cmd->threshold = wl->conf.fwlog.threshold;
1807
1808 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1809 if (ret < 0) {
1810 wl1271_error("failed to send config firmware logger command");
1811 goto out_free;
1812 }
1813
1814 out_free:
1815 kfree(cmd);
1816
1817 out:
1818 return ret;
1819 }
1820
wl12xx_cmd_start_fwlog(struct wl1271 * wl)1821 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1822 {
1823 struct wl12xx_cmd_start_fwlog *cmd;
1824 int ret = 0;
1825
1826 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1827
1828 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1829 if (!cmd) {
1830 ret = -ENOMEM;
1831 goto out;
1832 }
1833
1834 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1835 if (ret < 0) {
1836 wl1271_error("failed to send start firmware logger command");
1837 goto out_free;
1838 }
1839
1840 out_free:
1841 kfree(cmd);
1842
1843 out:
1844 return ret;
1845 }
1846
wl12xx_cmd_stop_fwlog(struct wl1271 * wl)1847 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1848 {
1849 struct wl12xx_cmd_stop_fwlog *cmd;
1850 int ret = 0;
1851
1852 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1853
1854 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1855 if (!cmd) {
1856 ret = -ENOMEM;
1857 goto out;
1858 }
1859
1860 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1861 if (ret < 0) {
1862 wl1271_error("failed to send stop firmware logger command");
1863 goto out_free;
1864 }
1865
1866 out_free:
1867 kfree(cmd);
1868
1869 out:
1870 return ret;
1871 }
1872
wl12xx_cmd_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id,enum nl80211_band band,u8 channel)1873 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1874 u8 role_id, enum nl80211_band band, u8 channel)
1875 {
1876 struct wl12xx_cmd_roc *cmd;
1877 int ret = 0;
1878
1879 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1880
1881 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1882 return -EINVAL;
1883
1884 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1885 if (!cmd) {
1886 ret = -ENOMEM;
1887 goto out;
1888 }
1889
1890 cmd->role_id = role_id;
1891 cmd->channel = channel;
1892 switch (band) {
1893 case NL80211_BAND_2GHZ:
1894 cmd->band = WLCORE_BAND_2_4GHZ;
1895 break;
1896 case NL80211_BAND_5GHZ:
1897 cmd->band = WLCORE_BAND_5GHZ;
1898 break;
1899 default:
1900 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1901 ret = -EINVAL;
1902 goto out_free;
1903 }
1904
1905
1906 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1907 if (ret < 0) {
1908 wl1271_error("failed to send ROC command");
1909 goto out_free;
1910 }
1911
1912 out_free:
1913 kfree(cmd);
1914
1915 out:
1916 return ret;
1917 }
1918
wl12xx_cmd_croc(struct wl1271 * wl,u8 role_id)1919 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1920 {
1921 struct wl12xx_cmd_croc *cmd;
1922 int ret = 0;
1923
1924 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1925
1926 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1927 if (!cmd) {
1928 ret = -ENOMEM;
1929 goto out;
1930 }
1931 cmd->role_id = role_id;
1932
1933 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1934 sizeof(*cmd), 0);
1935 if (ret < 0) {
1936 wl1271_error("failed to send ROC command");
1937 goto out_free;
1938 }
1939
1940 out_free:
1941 kfree(cmd);
1942
1943 out:
1944 return ret;
1945 }
1946
wl12xx_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id,enum nl80211_band band,u8 channel)1947 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1948 enum nl80211_band band, u8 channel)
1949 {
1950 int ret = 0;
1951
1952 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1953 return 0;
1954
1955 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1956 if (ret < 0)
1957 goto out;
1958
1959 __set_bit(role_id, wl->roc_map);
1960 out:
1961 return ret;
1962 }
1963
wl12xx_croc(struct wl1271 * wl,u8 role_id)1964 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1965 {
1966 int ret = 0;
1967
1968 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1969 return 0;
1970
1971 ret = wl12xx_cmd_croc(wl, role_id);
1972 if (ret < 0)
1973 goto out;
1974
1975 __clear_bit(role_id, wl->roc_map);
1976
1977 /*
1978 * Rearm the tx watchdog when removing the last ROC. This prevents
1979 * recoveries due to just finished ROCs - when Tx hasn't yet had
1980 * a chance to get out.
1981 */
1982 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1983 wl12xx_rearm_tx_watchdog_locked(wl);
1984 out:
1985 return ret;
1986 }
1987
wl12xx_cmd_stop_channel_switch(struct wl1271 * wl,struct wl12xx_vif * wlvif)1988 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1989 {
1990 struct wl12xx_cmd_stop_channel_switch *cmd;
1991 int ret;
1992
1993 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1994
1995 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1996 if (!cmd) {
1997 ret = -ENOMEM;
1998 goto out;
1999 }
2000
2001 cmd->role_id = wlvif->role_id;
2002
2003 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
2004 if (ret < 0) {
2005 wl1271_error("failed to stop channel switch command");
2006 goto out_free;
2007 }
2008
2009 out_free:
2010 kfree(cmd);
2011
2012 out:
2013 return ret;
2014 }
2015
2016 /* start dev role and roc on its channel */
wl12xx_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif,enum nl80211_band band,int channel)2017 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2018 enum nl80211_band band, int channel)
2019 {
2020 int ret;
2021
2022 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2023 wlvif->bss_type == BSS_TYPE_IBSS)))
2024 return -EINVAL;
2025
2026 /* the dev role is already started for p2p mgmt interfaces */
2027 if (!wlcore_is_p2p_mgmt(wlvif)) {
2028 ret = wl12xx_cmd_role_enable(wl,
2029 wl12xx_wlvif_to_vif(wlvif)->addr,
2030 WL1271_ROLE_DEVICE,
2031 &wlvif->dev_role_id);
2032 if (ret < 0)
2033 goto out;
2034 }
2035
2036 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2037 if (ret < 0)
2038 goto out_disable;
2039
2040 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2041 if (ret < 0)
2042 goto out_stop;
2043
2044 return 0;
2045
2046 out_stop:
2047 wl12xx_cmd_role_stop_dev(wl, wlvif);
2048 out_disable:
2049 if (!wlcore_is_p2p_mgmt(wlvif))
2050 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2051 out:
2052 return ret;
2053 }
2054
2055 /* croc dev hlid, and stop the role */
wl12xx_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)2056 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2057 {
2058 int ret;
2059
2060 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2061 wlvif->bss_type == BSS_TYPE_IBSS)))
2062 return -EINVAL;
2063
2064 /* flush all pending packets */
2065 ret = wlcore_tx_work_locked(wl);
2066 if (ret < 0)
2067 goto out;
2068
2069 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2070 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2071 if (ret < 0)
2072 goto out;
2073 }
2074
2075 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2076 if (ret < 0)
2077 goto out;
2078
2079 if (!wlcore_is_p2p_mgmt(wlvif)) {
2080 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2081 if (ret < 0)
2082 goto out;
2083 }
2084
2085 out:
2086 return ret;
2087 }
2088
wlcore_cmd_generic_cfg(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 feature,u8 enable,u8 value)2089 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2090 u8 feature, u8 enable, u8 value)
2091 {
2092 struct wlcore_cmd_generic_cfg *cmd;
2093 int ret;
2094
2095 wl1271_debug(DEBUG_CMD,
2096 "cmd generic cfg (role %d feature %d enable %d value %d)",
2097 wlvif->role_id, feature, enable, value);
2098
2099 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2100 if (!cmd)
2101 return -ENOMEM;
2102
2103 cmd->role_id = wlvif->role_id;
2104 cmd->feature = feature;
2105 cmd->enable = enable;
2106 cmd->value = value;
2107
2108 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2109 if (ret < 0) {
2110 wl1271_error("failed to send generic cfg command");
2111 goto out_free;
2112 }
2113 out_free:
2114 kfree(cmd);
2115 return ret;
2116 }
2117 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
2118
