?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / wireless / ti / wlcore / cmd.c
blob6ef8fc9ae62715c060874136307772595fa7eeca
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * This file is part of wl1271
4 *
5 * Copyright (C) 2009-2010 Nokia Corporation
6 *
7 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/platform_device.h>
12 #include <linux/pm_runtime.h>
13 #include <linux/spi/spi.h>
14 #include <linux/etherdevice.h>
15 #include <linux/ieee80211.h>
16 #include <linux/slab.h>
17
18 #include "wlcore.h"
19 #include "debug.h"
20 #include "io.h"
21 #include "acx.h"
22 #include "wl12xx_80211.h"
23 #include "cmd.h"
24 #include "event.h"
25 #include "tx.h"
26 #include "hw_ops.h"
27
28 #define WL1271_CMD_FAST_POLL_COUNT 50
29 #define WL1271_WAIT_EVENT_FAST_POLL_COUNT 20
30
31 /*
32 * send command to firmware
33 *
34 * @wl: wl struct
35 * @id: command id
36 * @buf: buffer containing the command, must work with dma
37 * @len: length of the buffer
38 * return the cmd status code on success.
39 */
40 static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
41 size_t len, size_t res_len)
42 {
43 struct wl1271_cmd_header *cmd;
44 unsigned long timeout;
45 u32 intr;
46 int ret;
47 u16 status;
48 u16 poll_count = 0;
49
50 if (unlikely(wl->state == WLCORE_STATE_RESTARTING &&
51 id != CMD_STOP_FWLOGGER))
52 return -EIO;
53
54 if (WARN_ON_ONCE(len < sizeof(*cmd)))
55 return -EIO;
56
57 cmd = buf;
58 cmd->id = cpu_to_le16(id);
59 cmd->status = 0;
60
61 WARN_ON(len % 4 != 0);
62 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
63
64 ret = wlcore_write(wl, wl->cmd_box_addr, buf, len, false);
65 if (ret < 0)
66 return ret;
67
68 /*
69 * TODO: we just need this because one bit is in a different
70 * place. Is there any better way?
71 */
72 ret = wl->ops->trigger_cmd(wl, wl->cmd_box_addr, buf, len);
73 if (ret < 0)
74 return ret;
75
76 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
77
78 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
79 if (ret < 0)
80 return ret;
81
82 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
83 if (time_after(jiffies, timeout)) {
84 wl1271_error("command complete timeout");
85 return -ETIMEDOUT;
86 }
87
88 poll_count++;
89 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
90 udelay(10);
91 else
92 msleep(1);
93
94 ret = wlcore_read_reg(wl, REG_INTERRUPT_NO_CLEAR, &intr);
95 if (ret < 0)
96 return ret;
97 }
98
99 /* read back the status code of the command */
100 if (res_len == 0)
101 res_len = sizeof(struct wl1271_cmd_header);
102
103 ret = wlcore_read(wl, wl->cmd_box_addr, cmd, res_len, false);
104 if (ret < 0)
105 return ret;
106
107 status = le16_to_cpu(cmd->status);
108
109 ret = wlcore_write_reg(wl, REG_INTERRUPT_ACK,
110 WL1271_ACX_INTR_CMD_COMPLETE);
111 if (ret < 0)
112 return ret;
113
114 return status;
115 }
116
117 /*
118 * send command to fw and return cmd status on success
119 * valid_rets contains a bitmap of allowed error codes
120 */
121 static int wlcore_cmd_send_failsafe(struct wl1271 *wl, u16 id, void *buf,
122 size_t len, size_t res_len,
123 unsigned long valid_rets)
124 {
125 int ret = __wlcore_cmd_send(wl, id, buf, len, res_len);
126
127 if (ret < 0)
128 goto fail;
129
130 /* success is always a valid status */
131 valid_rets |= BIT(CMD_STATUS_SUCCESS);
132
133 if (ret >= MAX_COMMAND_STATUS ||
134 !test_bit(ret, &valid_rets)) {
135 wl1271_error("command execute failure %d", ret);
136 ret = -EIO;
137 goto fail;
138 }
139 return ret;
140 fail:
141 wl12xx_queue_recovery_work(wl);
142 return ret;
143 }
144
145 /*
146 * wrapper for wlcore_cmd_send that accept only CMD_STATUS_SUCCESS
147 * return 0 on success.
148 */
149 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
150 size_t res_len)
151 {
152 int ret = wlcore_cmd_send_failsafe(wl, id, buf, len, res_len, 0);
153
154 if (ret < 0)
155 return ret;
156 return 0;
157 }
158 EXPORT_SYMBOL_GPL(wl1271_cmd_send);
159
160 /*
161 * Poll the mailbox event field until any of the bits in the mask is set or a
162 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
163 */
164 int wlcore_cmd_wait_for_event_or_timeout(struct wl1271 *wl,
165 u32 mask, bool *timeout)
166 {
167 u32 *events_vector;
168 u32 event;
169 unsigned long timeout_time;
170 u16 poll_count = 0;
171 int ret = 0;
172
173 *timeout = false;
174
175 events_vector = kmalloc(sizeof(*events_vector), GFP_KERNEL | GFP_DMA);
176 if (!events_vector)
177 return -ENOMEM;
178
179 timeout_time = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
180
181 ret = pm_runtime_get_sync(wl->dev);
182 if (ret < 0) {
183 pm_runtime_put_noidle(wl->dev);
184 goto free_vector;
185 }
186
187 do {
188 if (time_after(jiffies, timeout_time)) {
189 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
190 (int)mask);
191 *timeout = true;
192 goto out;
193 }
194
195 poll_count++;
196 if (poll_count < WL1271_WAIT_EVENT_FAST_POLL_COUNT)
197 usleep_range(50, 51);
198 else
199 usleep_range(1000, 5000);
200
201 /* read from both event fields */
202 ret = wlcore_read(wl, wl->mbox_ptr[0], events_vector,
203 sizeof(*events_vector), false);
204 if (ret < 0)
205 goto out;
206
207 event = *events_vector & mask;
208
209 ret = wlcore_read(wl, wl->mbox_ptr[1], events_vector,
210 sizeof(*events_vector), false);
211 if (ret < 0)
212 goto out;
213
214 event |= *events_vector & mask;
215 } while (!event);
216
217 out:
218 pm_runtime_mark_last_busy(wl->dev);
219 pm_runtime_put_autosuspend(wl->dev);
220 free_vector:
221 kfree(events_vector);
222 return ret;
223 }
224 EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
225
226 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
227 u8 *role_id)
228 {
229 struct wl12xx_cmd_role_enable *cmd;
230 int ret;
231
232 wl1271_debug(DEBUG_CMD, "cmd role enable");
233
234 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
235 return -EBUSY;
236
237 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
238 if (!cmd) {
239 ret = -ENOMEM;
240 goto out;
241 }
242
243 /* get role id */
244 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
245 if (cmd->role_id >= WL12XX_MAX_ROLES) {
246 ret = -EBUSY;
247 goto out_free;
248 }
249
250 memcpy(cmd->mac_address, addr, ETH_ALEN);
251 cmd->role_type = role_type;
252
253 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
254 if (ret < 0) {
255 wl1271_error("failed to initiate cmd role enable");
256 goto out_free;
257 }
258
259 __set_bit(cmd->role_id, wl->roles_map);
260 *role_id = cmd->role_id;
261
262 out_free:
263 kfree(cmd);
264
265 out:
266 return ret;
267 }
268
269 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
270 {
271 struct wl12xx_cmd_role_disable *cmd;
272 int ret;
273
274 wl1271_debug(DEBUG_CMD, "cmd role disable");
275
276 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
277 return -ENOENT;
278
279 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
280 if (!cmd) {
281 ret = -ENOMEM;
282 goto out;
283 }
284 cmd->role_id = *role_id;
285
286 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
287 if (ret < 0) {
288 wl1271_error("failed to initiate cmd role disable");
289 goto out_free;
290 }
291
292 __clear_bit(*role_id, wl->roles_map);
293 *role_id = WL12XX_INVALID_ROLE_ID;
294
295 out_free:
296 kfree(cmd);
297
298 out:
299 return ret;
300 }
301
302 static int wlcore_get_new_session_id(struct wl1271 *wl, u8 hlid)
303 {
304 if (wl->session_ids[hlid] >= SESSION_COUNTER_MAX)
305 wl->session_ids[hlid] = 0;
306
307 wl->session_ids[hlid]++;
308
309 return wl->session_ids[hlid];
310 }
311
312 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
313 {
314 unsigned long flags;
315 u8 link = find_first_zero_bit(wl->links_map, wl->num_links);
316 if (link >= wl->num_links)
317 return -EBUSY;
318
319 wl->session_ids[link] = wlcore_get_new_session_id(wl, link);
320
321 /* these bits are used by op_tx */
322 spin_lock_irqsave(&wl->wl_lock, flags);
323 __set_bit(link, wl->links_map);
324 __set_bit(link, wlvif->links_map);
325 spin_unlock_irqrestore(&wl->wl_lock, flags);
326
327 /*
328 * take the last "freed packets" value from the current FW status.
329 * on recovery, we might not have fw_status yet, and
330 * tx_lnk_free_pkts will be NULL. check for it.
331 */
332 if (wl->fw_status->counters.tx_lnk_free_pkts)
333 wl->links[link].prev_freed_pkts =
334 wl->fw_status->counters.tx_lnk_free_pkts[link];
335 wl->links[link].wlvif = wlvif;
336
337 /*
338 * Take saved value for total freed packets from wlvif, in case this is
339 * recovery/resume
340 */
341 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
342 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
343
344 *hlid = link;
345
346 wl->active_link_count++;
347 return 0;
348 }
349
350 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
351 {
352 unsigned long flags;
353
354 if (*hlid == WL12XX_INVALID_LINK_ID)
355 return;
356
357 /* these bits are used by op_tx */
358 spin_lock_irqsave(&wl->wl_lock, flags);
359 __clear_bit(*hlid, wl->links_map);
360 __clear_bit(*hlid, wlvif->links_map);
361 spin_unlock_irqrestore(&wl->wl_lock, flags);
362
363 wl->links[*hlid].allocated_pkts = 0;
364 wl->links[*hlid].prev_freed_pkts = 0;
365 wl->links[*hlid].ba_bitmap = 0;
366 eth_zero_addr(wl->links[*hlid].addr);
367
368 /*
369 * At this point op_tx() will not add more packets to the queues. We
370 * can purge them.
371 */
372 wl1271_tx_reset_link_queues(wl, *hlid);
373 wl->links[*hlid].wlvif = NULL;
374
375 if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
376 *hlid == wlvif->ap.bcast_hlid) {
377 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
378 /*
379 * save the total freed packets in the wlvif, in case this is
380 * recovery or suspend
381 */
382 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
383
384 /*
385 * increment the initial seq number on recovery to account for
386 * transmitted packets that we haven't yet got in the FW status
387 */
388 if (wlvif->encryption_type == KEY_GEM)
389 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
390
391 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
392 wlvif->total_freed_pkts += sqn_padding;
393 }
394
395 wl->links[*hlid].total_freed_pkts = 0;
396
397 *hlid = WL12XX_INVALID_LINK_ID;
398 wl->active_link_count--;
399 WARN_ON_ONCE(wl->active_link_count < 0);
400 }
401
402 u8 wlcore_get_native_channel_type(u8 nl_channel_type)
403 {
404 switch (nl_channel_type) {
405 case NL80211_CHAN_NO_HT:
406 return WLCORE_CHAN_NO_HT;
407 case NL80211_CHAN_HT20:
408 return WLCORE_CHAN_HT20;
409 case NL80211_CHAN_HT40MINUS:
410 return WLCORE_CHAN_HT40MINUS;
411 case NL80211_CHAN_HT40PLUS:
412 return WLCORE_CHAN_HT40PLUS;
413 default:
414 WARN_ON(1);
415 return WLCORE_CHAN_NO_HT;
416 }
417 }
418 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
419
420 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
421 struct wl12xx_vif *wlvif,
422 enum nl80211_band band,
423 int channel)
424 {
425 struct wl12xx_cmd_role_start *cmd;
426 int ret;
427
428 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
429 if (!cmd) {
430 ret = -ENOMEM;
431 goto out;
432 }
433
434 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
435
436 cmd->role_id = wlvif->dev_role_id;
437 if (band == NL80211_BAND_5GHZ)
438 cmd->band = WLCORE_BAND_5GHZ;
439 cmd->channel = channel;
440
441 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
442 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
443 if (ret)
444 goto out_free;
445 }
446 cmd->device.hlid = wlvif->dev_hlid;
447 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
448
449 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
450 cmd->role_id, cmd->device.hlid, cmd->device.session);
451
452 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
453 if (ret < 0) {
454 wl1271_error("failed to initiate cmd role enable");
455 goto err_hlid;
456 }
457
458 goto out_free;
459
460 err_hlid:
461 /* clear links on error */
462 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
463
464 out_free:
465 kfree(cmd);
466
467 out:
468 return ret;
469 }
470
471 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
472 struct wl12xx_vif *wlvif)
473 {
474 struct wl12xx_cmd_role_stop *cmd;
475 int ret;
476
477 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
478 return -EINVAL;
479
480 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
481 if (!cmd) {
482 ret = -ENOMEM;
483 goto out;
484 }
485
486 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
487
488 cmd->role_id = wlvif->dev_role_id;
489 cmd->disc_type = DISCONNECT_IMMEDIATE;
490 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
491
492 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
493 if (ret < 0) {
494 wl1271_error("failed to initiate cmd role stop");
495 goto out_free;
496 }
497
498 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
499
500 out_free:
501 kfree(cmd);
502
503 out:
504 return ret;
505 }
506
507 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
508 {
509 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
510 struct wl12xx_cmd_role_start *cmd;
511 u32 supported_rates;
512 int ret;
513
514 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
515 if (!cmd) {
516 ret = -ENOMEM;
517 goto out;
518 }
519
520 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
521
522 cmd->role_id = wlvif->role_id;
523 if (wlvif->band == NL80211_BAND_5GHZ)
524 cmd->band = WLCORE_BAND_5GHZ;
525 cmd->channel = wlvif->channel;
526 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
527 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
528 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
529 cmd->sta.ssid_len = wlvif->ssid_len;
530 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
531 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
532
533 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
534 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
535 if (wlvif->p2p)
536 supported_rates &= ~CONF_TX_CCK_RATES;
537
538 cmd->sta.local_rates = cpu_to_le32(supported_rates);
539
540 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
541
542 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
543 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
544 if (ret)
545 goto out_free;
546 }
547 cmd->sta.hlid = wlvif->sta.hlid;
548 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
549 /*
550 * We don't have the correct remote rates in this stage. The
551 * rates will be reconfigured later, after association, if the
552 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
553 * we can do, so use all supported_rates here.
554 */
555 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
556
557 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
558 "basic_rate_set: 0x%x, remote_rates: 0x%x",
559 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
560 wlvif->basic_rate_set, wlvif->rate_set);
561
562 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
563 if (ret < 0) {
564 wl1271_error("failed to initiate cmd role start sta");
565 goto err_hlid;
566 }
567
568 wlvif->sta.role_chan_type = wlvif->channel_type;
569 goto out_free;
570
571 err_hlid:
572 /* clear links on error. */
573 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
574
575 out_free:
576 kfree(cmd);
577
578 out:
579 return ret;
580 }
581
582 /* use this function to stop ibss as well */
583 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
584 {
585 struct wl12xx_cmd_role_stop *cmd;
586 int ret;
587
588 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
589 return -EINVAL;
590
591 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
592 if (!cmd) {
593 ret = -ENOMEM;
594 goto out;
595 }
596
597 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
598
599 cmd->role_id = wlvif->role_id;
600 cmd->disc_type = DISCONNECT_IMMEDIATE;
601 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
602
603 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
604 if (ret < 0) {
605 wl1271_error("failed to initiate cmd role stop sta");
606 goto out_free;
607 }
608
609 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
610
611 out_free:
612 kfree(cmd);
613
614 out:
615 return ret;
616 }
617
618 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
619 {
620 struct wl12xx_cmd_role_start *cmd;
621 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
622 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
623 u32 supported_rates;
624 int ret;
625
626 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
627
628 /* If MESH --> ssid_len is always 0 */
629 if (!ieee80211_vif_is_mesh(vif)) {
630 /* trying to use hidden SSID with an old hostapd version */
631 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
632 wl1271_error("got a null SSID from beacon/bss");
633 ret = -EINVAL;
634 goto out;
635 }
636 }
637
638 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
639 if (!cmd) {
640 ret = -ENOMEM;
641 goto out;
642 }
643
644 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
645 if (ret < 0)
646 goto out_free;
647
648 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
649 if (ret < 0)
650 goto out_free_global;
651
652 /* use the previous security seq, if this is a recovery/resume */
653 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
654 wlvif->total_freed_pkts;
655
656 cmd->role_id = wlvif->role_id;
657 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
658 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
659 cmd->ap.global_hlid = wlvif->ap.global_hlid;
660 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
661 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
662 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
663 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
664 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
665 cmd->ap.dtim_interval = bss_conf->dtim_period;
666 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
667 /* FIXME: Change when adding DFS */
668 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
669 cmd->ap.wmm = wlvif->wmm_enabled;
670 cmd->channel = wlvif->channel;
671 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
672
673 if (!bss_conf->hidden_ssid) {
674 /* take the SSID from the beacon for backward compatibility */
675 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
676 cmd->ap.ssid_len = wlvif->ssid_len;
677 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
678 } else {
679 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
680 cmd->ap.ssid_len = bss_conf->ssid_len;
681 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
682 }
683
684 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
685 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
686 if (wlvif->p2p)
687 supported_rates &= ~CONF_TX_CCK_RATES;
688
689 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
690 supported_rates);
691
692 cmd->ap.local_rates = cpu_to_le32(supported_rates);
693
694 switch (wlvif->band) {
695 case NL80211_BAND_2GHZ:
696 cmd->band = WLCORE_BAND_2_4GHZ;
697 break;
698 case NL80211_BAND_5GHZ:
699 cmd->band = WLCORE_BAND_5GHZ;
700 break;
701 default:
702 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
703 cmd->band = WLCORE_BAND_2_4GHZ;
704 break;
705 }
706
707 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
708 if (ret < 0) {
709 wl1271_error("failed to initiate cmd role start ap");
710 goto out_free_bcast;
711 }
712
713 goto out_free;
714
715 out_free_bcast:
716 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
717
718 out_free_global:
719 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
720
721 out_free:
722 kfree(cmd);
723
724 out:
725 return ret;
726 }
727
728 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
729 {
730 struct wl12xx_cmd_role_stop *cmd;
731 int ret;
732
733 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
734 if (!cmd) {
735 ret = -ENOMEM;
736 goto out;
737 }
738
739 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
740
741 cmd->role_id = wlvif->role_id;
742
743 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
744 if (ret < 0) {
745 wl1271_error("failed to initiate cmd role stop ap");
746 goto out_free;
747 }
748
749 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
750 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
751
752 out_free:
753 kfree(cmd);
754
755 out:
756 return ret;
757 }
758
759 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
760 {
761 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
762 struct wl12xx_cmd_role_start *cmd;
763 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
764 int ret;
765
766 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
767 if (!cmd) {
768 ret = -ENOMEM;
769 goto out;
770 }
771
772 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
773
774 cmd->role_id = wlvif->role_id;
775 if (wlvif->band == NL80211_BAND_5GHZ)
776 cmd->band = WLCORE_BAND_5GHZ;
777 cmd->channel = wlvif->channel;
778 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
779 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
780 cmd->ibss.dtim_interval = bss_conf->dtim_period;
781 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
782 cmd->ibss.ssid_len = wlvif->ssid_len;
783 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
784 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
785 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
786
787 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
788 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
789 if (ret)
790 goto out_free;
791 }
792 cmd->ibss.hlid = wlvif->sta.hlid;
793 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
794
795 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
796 "basic_rate_set: 0x%x, remote_rates: 0x%x",
797 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
798 wlvif->basic_rate_set, wlvif->rate_set);
799
800 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
801 vif->bss_conf.bssid);
802
803 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
804 if (ret < 0) {
805 wl1271_error("failed to initiate cmd role enable");
806 goto err_hlid;
807 }
808
809 goto out_free;
810
811 err_hlid:
812 /* clear links on error. */
813 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
814
815 out_free:
816 kfree(cmd);
817
818 out:
819 return ret;
820 }
821
822
823 /**
824 * send test command to firmware
825 *
826 * @wl: wl struct
827 * @buf: buffer containing the command, with all headers, must work with dma
828 * @len: length of the buffer
829 * @answer: is answer needed
830 */
831 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
832 {
833 int ret;
834 size_t res_len = 0;
835
836 wl1271_debug(DEBUG_CMD, "cmd test");
837
838 if (answer)
839 res_len = buf_len;
840
841 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
842
843 if (ret < 0) {
844 wl1271_warning("TEST command failed");
845 return ret;
846 }
847
848 return ret;
849 }
850 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
851
852 /**
853 * read acx from firmware
854 *
855 * @wl: wl struct
856 * @id: acx id
857 * @buf: buffer for the response, including all headers, must work with dma
858 * @len: length of buf
859 */
860 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
861 size_t cmd_len, size_t res_len)
862 {
863 struct acx_header *acx = buf;
864 int ret;
865
866 wl1271_debug(DEBUG_CMD, "cmd interrogate");
867
868 acx->id = cpu_to_le16(id);
869
870 /* response payload length, does not include any headers */
871 acx->len = cpu_to_le16(res_len - sizeof(*acx));
872
873 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
874 if (ret < 0)
875 wl1271_error("INTERROGATE command failed");
876
877 return ret;
878 }
879
880 /**
881 * write acx value to firmware
882 *
883 * @wl: wl struct
884 * @id: acx id
885 * @buf: buffer containing acx, including all headers, must work with dma
886 * @len: length of buf
887 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
888 * return the cmd status on success.
889 */
890 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
891 size_t len, unsigned long valid_rets)
892 {
893 struct acx_header *acx = buf;
894 int ret;
895
896 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
897
898 if (WARN_ON_ONCE(len < sizeof(*acx)))
899 return -EIO;
900
901 acx->id = cpu_to_le16(id);
902
903 /* payload length, does not include any headers */
904 acx->len = cpu_to_le16(len - sizeof(*acx));
905
906 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
907 valid_rets);
908 if (ret < 0) {
909 wl1271_warning("CONFIGURE command NOK");
910 return ret;
911 }
912
913 return ret;
914 }
915
916 /*
917 * wrapper for wlcore_cmd_configure that accepts only success status.
918 * return 0 on success
919 */
920 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
921 {
922 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
923
924 if (ret < 0)
925 return ret;
926 return 0;
927 }
928 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
929
930 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
931 {
932 struct cmd_enabledisable_path *cmd;
933 int ret;
934 u16 cmd_rx, cmd_tx;
935
936 wl1271_debug(DEBUG_CMD, "cmd data path");
937
938 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
939 if (!cmd) {
940 ret = -ENOMEM;
941 goto out;
942 }
943
944 /* the channel here is only used for calibration, so hardcoded to 1 */
945 cmd->channel = 1;
946
947 if (enable) {
948 cmd_rx = CMD_ENABLE_RX;
949 cmd_tx = CMD_ENABLE_TX;
950 } else {
951 cmd_rx = CMD_DISABLE_RX;
952 cmd_tx = CMD_DISABLE_TX;
953 }
954
955 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
956 if (ret < 0) {
957 wl1271_error("rx %s cmd for channel %d failed",
958 enable ? "start" : "stop", cmd->channel);
959 goto out;
960 }
961
962 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
963 enable ? "start" : "stop", cmd->channel);
964
965 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
966 if (ret < 0) {
967 wl1271_error("tx %s cmd for channel %d failed",
968 enable ? "start" : "stop", cmd->channel);
969 goto out;
970 }
971
972 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
973 enable ? "start" : "stop", cmd->channel);
974
975 out:
976 kfree(cmd);
977 return ret;
978 }
979 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
980
981 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
982 u8 ps_mode, u16 auto_ps_timeout)
983 {
984 struct wl1271_cmd_ps_params *ps_params = NULL;
985 int ret = 0;
986
987 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
988
989 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
990 if (!ps_params) {
991 ret = -ENOMEM;
992 goto out;
993 }
994
995 ps_params->role_id = wlvif->role_id;
996 ps_params->ps_mode = ps_mode;
997 ps_params->auto_ps_timeout = auto_ps_timeout;
998
999 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1000 sizeof(*ps_params), 0);
1001 if (ret < 0) {
1002 wl1271_error("cmd set_ps_mode failed");
1003 goto out;
1004 }
1005
1006 out:
1007 kfree(ps_params);
1008 return ret;
1009 }
1010
1011 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1012 u16 template_id, void *buf, size_t buf_len,
1013 int index, u32 rates)
1014 {
1015 struct wl1271_cmd_template_set *cmd;
1016 int ret = 0;
1017
1018 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1019 template_id, role_id);
1020
1021 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1022 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1023
1024 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1025 if (!cmd) {
1026 ret = -ENOMEM;
1027 goto out;
1028 }
1029
1030 /* during initialization wlvif is NULL */
1031 cmd->role_id = role_id;
1032 cmd->len = cpu_to_le16(buf_len);
1033 cmd->template_type = template_id;
1034 cmd->enabled_rates = cpu_to_le32(rates);
1035 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1036 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1037 cmd->index = index;
1038
1039 if (buf)
1040 memcpy(cmd->template_data, buf, buf_len);
1041
1042 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1043 if (ret < 0) {
1044 wl1271_warning("cmd set_template failed: %d", ret);
1045 goto out_free;
1046 }
1047
1048 out_free:
1049 kfree(cmd);
1050
1051 out:
1052 return ret;
1053 }
1054
1055 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1056 {
1057 struct sk_buff *skb = NULL;
1058 int size;
1059 void *ptr;
1060 int ret = -ENOMEM;
1061
1062
1063 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1064 size = sizeof(struct wl12xx_null_data_template);
1065 ptr = NULL;
1066 } else {
1067 skb = ieee80211_nullfunc_get(wl->hw,
1068 wl12xx_wlvif_to_vif(wlvif),
1069 false);
1070 if (!skb)
1071 goto out;
1072 size = skb->len;
1073 ptr = skb->data;
1074 }
1075
1076 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1077 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1078 wlvif->basic_rate);
1079
1080 out:
1081 dev_kfree_skb(skb);
1082 if (ret)
1083 wl1271_warning("cmd buld null data failed %d", ret);
1084
1085 return ret;
1086
1087 }
1088
1089 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1090 struct wl12xx_vif *wlvif)
1091 {
1092 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1093 struct sk_buff *skb = NULL;
1094 int ret = -ENOMEM;
1095
1096 skb = ieee80211_nullfunc_get(wl->hw, vif, false);
1097 if (!skb)
1098 goto out;
1099
1100 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1101 skb->data, skb->len,
1102 wlvif->sta.klv_template_id,
1103 wlvif->basic_rate);
1104
1105 out:
1106 dev_kfree_skb(skb);
1107 if (ret)
1108 wl1271_warning("cmd build klv null data failed %d", ret);
1109
1110 return ret;
1111
1112 }
1113
1114 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1115 u16 aid)
1116 {
1117 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1118 struct sk_buff *skb;
1119 int ret = 0;
1120
1121 skb = ieee80211_pspoll_get(wl->hw, vif);
1122 if (!skb)
1123 goto out;
1124
1125 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1126 CMD_TEMPL_PS_POLL, skb->data,
1127 skb->len, 0, wlvif->basic_rate_set);
1128
1129 out:
1130 dev_kfree_skb(skb);
1131 return ret;
1132 }
1133
1134 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1135 u8 role_id, u8 band,
1136 const u8 *ssid, size_t ssid_len,
1137 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1138 size_t ie1_len, bool sched_scan)
1139 {
1140 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1141 struct sk_buff *skb;
1142 int ret;
1143 u32 rate;
1144 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1145 u16 template_id_5 = wl->scan_templ_id_5;
1146
1147 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1148
1149 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1150 ie0_len + ie1_len);
1151 if (!skb) {
1152 ret = -ENOMEM;
1153 goto out;
1154 }
1155 if (ie0_len)
1156 skb_put_data(skb, ie0, ie0_len);
1157 if (ie1_len)
1158 skb_put_data(skb, ie1, ie1_len);
1159
1160 if (sched_scan &&
1161 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1162 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1163 template_id_5 = wl->sched_scan_templ_id_5;
1164 }
1165
1166 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1167 if (band == NL80211_BAND_2GHZ)
1168 ret = wl1271_cmd_template_set(wl, role_id,
1169 template_id_2_4,
1170 skb->data, skb->len, 0, rate);
1171 else
1172 ret = wl1271_cmd_template_set(wl, role_id,
1173 template_id_5,
1174 skb->data, skb->len, 0, rate);
1175
1176 out:
1177 dev_kfree_skb(skb);
1178 return ret;
1179 }
1180 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1181
1182 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1183 struct wl12xx_vif *wlvif,
1184 struct sk_buff *skb)
1185 {
1186 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1187 int ret;
1188 u32 rate;
1189
1190 if (!skb)
1191 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1192 if (!skb)
1193 goto out;
1194
1195 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1196
1197 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1198 if (wlvif->band == NL80211_BAND_2GHZ)
1199 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1200 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1201 skb->data, skb->len, 0, rate);
1202 else
1203 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1204 CMD_TEMPL_CFG_PROBE_REQ_5,
1205 skb->data, skb->len, 0, rate);
1206
1207 if (ret < 0)
1208 wl1271_error("Unable to set ap probe request template.");
1209
1210 out:
1211 return skb;
1212 }
1213
1214 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1215 {
1216 int ret, extra = 0;
1217 u16 fc;
1218 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1219 struct sk_buff *skb;
1220 struct wl12xx_arp_rsp_template *tmpl;
1221 struct ieee80211_hdr_3addr *hdr;
1222 struct arphdr *arp_hdr;
1223
1224 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1225 WL1271_EXTRA_SPACE_MAX);
1226 if (!skb) {
1227 wl1271_error("failed to allocate buffer for arp rsp template");
1228 return -ENOMEM;
1229 }
1230
1231 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1232
1233 tmpl = skb_put_zero(skb, sizeof(*tmpl));
1234
1235 /* llc layer */
1236 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1237 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1238
1239 /* arp header */
1240 arp_hdr = &tmpl->arp_hdr;
1241 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1242 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1243 arp_hdr->ar_hln = ETH_ALEN;
1244 arp_hdr->ar_pln = 4;
1245 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1246
1247 /* arp payload */
1248 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1249 tmpl->sender_ip = wlvif->ip_addr;
1250
1251 /* encryption space */
1252 switch (wlvif->encryption_type) {
1253 case KEY_TKIP:
1254 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1255 extra = WL1271_EXTRA_SPACE_TKIP;
1256 break;
1257 case KEY_AES:
1258 extra = WL1271_EXTRA_SPACE_AES;
1259 break;
1260 case KEY_NONE:
1261 case KEY_WEP:
1262 case KEY_GEM:
1263 extra = 0;
1264 break;
1265 default:
1266 wl1271_warning("Unknown encryption type: %d",
1267 wlvif->encryption_type);
1268 ret = -EINVAL;
1269 goto out;
1270 }
1271
1272 if (extra) {
1273 u8 *space = skb_push(skb, extra);
1274 memset(space, 0, extra);
1275 }
1276
1277 /* QoS header - BE */
1278 if (wlvif->sta.qos)
1279 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1280
1281 /* mac80211 header */
1282 hdr = skb_push(skb, sizeof(*hdr));
1283 memset(hdr, 0, sizeof(*hdr));
1284 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1285 if (wlvif->sta.qos)
1286 fc |= IEEE80211_STYPE_QOS_DATA;
1287 else
1288 fc |= IEEE80211_STYPE_DATA;
1289 if (wlvif->encryption_type != KEY_NONE)
1290 fc |= IEEE80211_FCTL_PROTECTED;
1291
1292 hdr->frame_control = cpu_to_le16(fc);
1293 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1294 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1295 eth_broadcast_addr(hdr->addr3);
1296
1297 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1298 skb->data, skb->len, 0,
1299 wlvif->basic_rate);
1300 out:
1301 dev_kfree_skb(skb);
1302 return ret;
1303 }
1304
1305 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1306 {
1307 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1308 struct ieee80211_qos_hdr template;
1309
1310 memset(&template, 0, sizeof(template));
1311
1312 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1313 memcpy(template.addr2, vif->addr, ETH_ALEN);
1314 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1315
1316 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1317 IEEE80211_STYPE_QOS_NULLFUNC |
1318 IEEE80211_FCTL_TODS);
1319
1320 /* FIXME: not sure what priority to use here */
1321 template.qos_ctrl = cpu_to_le16(0);
1322
1323 return wl1271_cmd_template_set(wl, wlvif->role_id,
1324 CMD_TEMPL_QOS_NULL_DATA, &template,
1325 sizeof(template), 0,
1326 wlvif->basic_rate);
1327 }
1328
1329 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1330 {
1331 struct wl1271_cmd_set_keys *cmd;
1332 int ret = 0;
1333
1334 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1335
1336 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1337 if (!cmd) {
1338 ret = -ENOMEM;
1339 goto out;
1340 }
1341
1342 cmd->hlid = hlid;
1343 cmd->key_id = id;
1344 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1345 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1346 cmd->key_type = KEY_WEP;
1347
1348 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1349 if (ret < 0) {
1350 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1351 goto out;
1352 }
1353
1354 out:
1355 kfree(cmd);
1356
1357 return ret;
1358 }
1359
1360 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1361 u16 action, u8 id, u8 key_type,
1362 u8 key_size, const u8 *key, const u8 *addr,
1363 u32 tx_seq_32, u16 tx_seq_16)
1364 {
1365 struct wl1271_cmd_set_keys *cmd;
1366 int ret = 0;
1367
1368 /* hlid might have already been deleted */
1369 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1370 return 0;
1371
1372 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1373 if (!cmd) {
1374 ret = -ENOMEM;
1375 goto out;
1376 }
1377
1378 cmd->hlid = wlvif->sta.hlid;
1379
1380 if (key_type == KEY_WEP)
1381 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1382 else if (is_broadcast_ether_addr(addr))
1383 cmd->lid_key_type = BROADCAST_LID_TYPE;
1384 else
1385 cmd->lid_key_type = UNICAST_LID_TYPE;
1386
1387 cmd->key_action = cpu_to_le16(action);
1388 cmd->key_size = key_size;
1389 cmd->key_type = key_type;
1390
1391 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1392 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1393
1394 cmd->key_id = id;
1395
1396 if (key_type == KEY_TKIP) {
1397 /*
1398 * We get the key in the following form:
1399 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1400 * but the target is expecting:
1401 * TKIP - RX MIC - TX MIC
1402 */
1403 memcpy(cmd->key, key, 16);
1404 memcpy(cmd->key + 16, key + 24, 8);
1405 memcpy(cmd->key + 24, key + 16, 8);
1406
1407 } else {
1408 memcpy(cmd->key, key, key_size);
1409 }
1410
1411 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1412
1413 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1414 if (ret < 0) {
1415 wl1271_warning("could not set keys");
1416 goto out;
1417 }
1418
1419 out:
1420 kfree(cmd);
1421
1422 return ret;
1423 }
1424
1425 /*
1426 * TODO: merge with sta/ibss into 1 set_key function.
1427 * note there are slight diffs
1428 */
1429 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1430 u16 action, u8 id, u8 key_type,
1431 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1432 u16 tx_seq_16, bool is_pairwise)
1433 {
1434 struct wl1271_cmd_set_keys *cmd;
1435 int ret = 0;
1436 u8 lid_type;
1437
1438 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1439 if (!cmd)
1440 return -ENOMEM;
1441
1442 if (hlid == wlvif->ap.bcast_hlid) {
1443 if (key_type == KEY_WEP)
1444 lid_type = WEP_DEFAULT_LID_TYPE;
1445 else
1446 lid_type = BROADCAST_LID_TYPE;
1447 } else if (is_pairwise) {
1448 lid_type = UNICAST_LID_TYPE;
1449 } else {
1450 lid_type = BROADCAST_LID_TYPE;
1451 }
1452
1453 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1454 " hlid: %d", (int)action, (int)id, (int)lid_type,
1455 (int)key_type, (int)hlid);
1456
1457 cmd->lid_key_type = lid_type;
1458 cmd->hlid = hlid;
1459 cmd->key_action = cpu_to_le16(action);
1460 cmd->key_size = key_size;
1461 cmd->key_type = key_type;
1462 cmd->key_id = id;
1463 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1464 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1465
1466 if (key_type == KEY_TKIP) {
1467 /*
1468 * We get the key in the following form:
1469 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1470 * but the target is expecting:
1471 * TKIP - RX MIC - TX MIC
1472 */
1473 memcpy(cmd->key, key, 16);
1474 memcpy(cmd->key + 16, key + 24, 8);
1475 memcpy(cmd->key + 24, key + 16, 8);
1476 } else {
1477 memcpy(cmd->key, key, key_size);
1478 }
1479
1480 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1481
1482 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1483 if (ret < 0) {
1484 wl1271_warning("could not set ap keys");
1485 goto out;
1486 }
1487
1488 out:
1489 kfree(cmd);
1490 return ret;
1491 }
1492
1493 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1494 u8 hlid)
1495 {
1496 struct wl12xx_cmd_set_peer_state *cmd;
1497 int ret = 0;
1498
1499 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1500
1501 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1502 if (!cmd) {
1503 ret = -ENOMEM;
1504 goto out;
1505 }
1506
1507 cmd->hlid = hlid;
1508 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1509
1510 /* wmm param is valid only for station role */
1511 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1512 cmd->wmm = wlvif->wmm_enabled;
1513
1514 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1515 if (ret < 0) {
1516 wl1271_error("failed to send set peer state command");
1517 goto out_free;
1518 }
1519
1520 out_free:
1521 kfree(cmd);
1522
1523 out:
1524 return ret;
1525 }
1526
1527 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1528 struct ieee80211_sta *sta, u8 hlid)
1529 {
1530 struct wl12xx_cmd_add_peer *cmd;
1531 int i, ret;
1532 u32 sta_rates;
1533
1534 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1535
1536 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1537 if (!cmd) {
1538 ret = -ENOMEM;
1539 goto out;
1540 }
1541
1542 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1543 cmd->bss_index = WL1271_AP_BSS_INDEX;
1544 cmd->aid = sta->aid;
1545 cmd->hlid = hlid;
1546 cmd->sp_len = sta->max_sp;
1547 cmd->wmm = sta->wme ? 1 : 0;
1548 cmd->session_id = wl->session_ids[hlid];
1549 cmd->role_id = wlvif->role_id;
1550
1551 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1552 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1553 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1554 WL1271_PSD_UPSD_TRIGGER;
1555 else
1556 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1557 WL1271_PSD_LEGACY;
1558
1559
1560 sta_rates = sta->supp_rates[wlvif->band];
1561 if (sta->ht_cap.ht_supported)
1562 sta_rates |=
1563 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1564 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1565
1566 cmd->supported_rates =
1567 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1568 wlvif->band));
1569
1570 if (!cmd->supported_rates) {
1571 wl1271_debug(DEBUG_CMD,
1572 "peer has no supported rates yet, configuring basic rates: 0x%x",
1573 wlvif->basic_rate_set);
1574 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set);
1575 }
1576
1577 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1578 cmd->supported_rates, sta->uapsd_queues);
1579
1580 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1581 if (ret < 0) {
1582 wl1271_error("failed to initiate cmd add peer");
1583 goto out_free;
1584 }
1585
1586 out_free:
1587 kfree(cmd);
1588
1589 out:
1590 return ret;
1591 }
1592
1593 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1594 u8 hlid)
1595 {
1596 struct wl12xx_cmd_remove_peer *cmd;
1597 int ret;
1598 bool timeout = false;
1599
1600 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1601
1602 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1603 if (!cmd) {
1604 ret = -ENOMEM;
1605 goto out;
1606 }
1607
1608 cmd->hlid = hlid;
1609 /* We never send a deauth, mac80211 is in charge of this */
1610 cmd->reason_opcode = 0;
1611 cmd->send_deauth_flag = 0;
1612 cmd->role_id = wlvif->role_id;
1613
1614 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1615 if (ret < 0) {
1616 wl1271_error("failed to initiate cmd remove peer");
1617 goto out_free;
1618 }
1619
1620 ret = wl->ops->wait_for_event(wl,
1621 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1622 &timeout);
1623
1624 /*
1625 * We are ok with a timeout here. The event is sometimes not sent
1626 * due to a firmware bug. In case of another error (like SDIO timeout)
1627 * queue a recovery.
1628 */
1629 if (ret)
1630 wl12xx_queue_recovery_work(wl);
1631
1632 out_free:
1633 kfree(cmd);
1634
1635 out:
1636 return ret;
1637 }
1638
1639 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1640 {
1641 /*
1642 * map the given band/channel to the respective predefined
1643 * bit expected by the fw
1644 */
1645 switch (band) {
1646 case NL80211_BAND_2GHZ:
1647 /* channels 1..14 are mapped to 0..13 */
1648 if (ch >= 1 && ch <= 14)
1649 return ch - 1;
1650 break;
1651 case NL80211_BAND_5GHZ:
1652 switch (ch) {
1653 case 8 ... 16:
1654 /* channels 8,12,16 are mapped to 18,19,20 */
1655 return 18 + (ch-8)/4;
1656 case 34 ... 48:
1657 /* channels 34,36..48 are mapped to 21..28 */
1658 return 21 + (ch-34)/2;
1659 case 52 ... 64:
1660 /* channels 52,56..64 are mapped to 29..32 */
1661 return 29 + (ch-52)/4;
1662 case 100 ... 140:
1663 /* channels 100,104..140 are mapped to 33..43 */
1664 return 33 + (ch-100)/4;
1665 case 149 ... 165:
1666 /* channels 149,153..165 are mapped to 44..48 */
1667 return 44 + (ch-149)/4;
1668 default:
1669 break;
1670 }
1671 break;
1672 default:
1673 break;
1674 }
1675
1676 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1677 return -1;
1678 }
1679
1680 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1681 enum nl80211_band band)
1682 {
1683 int ch_bit_idx = 0;
1684
1685 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1686 return;
1687
1688 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1689
1690 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1691 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1692 }
1693
1694 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1695 {
1696 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1697 int ret = 0, i, b, ch_bit_idx;
1698 __le32 tmp_ch_bitmap[2] __aligned(sizeof(unsigned long));
1699 struct wiphy *wiphy = wl->hw->wiphy;
1700 struct ieee80211_supported_band *band;
1701 bool timeout = false;
1702
1703 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1704 return 0;
1705
1706 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1707
1708 memcpy(tmp_ch_bitmap, wl->reg_ch_conf_pending, sizeof(tmp_ch_bitmap));
1709
1710 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1711 band = wiphy->bands[b];
1712 for (i = 0; i < band->n_channels; i++) {
1713 struct ieee80211_channel *channel = &band->channels[i];
1714 u16 ch = channel->hw_value;
1715 u32 flags = channel->flags;
1716
1717 if (flags & (IEEE80211_CHAN_DISABLED |
1718 IEEE80211_CHAN_NO_IR))
1719 continue;
1720
1721 if ((flags & IEEE80211_CHAN_RADAR) &&
1722 channel->dfs_state != NL80211_DFS_AVAILABLE)
1723 continue;
1724
1725 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1726 if (ch_bit_idx < 0)
1727 continue;
1728
1729 __set_bit_le(ch_bit_idx, (long *)tmp_ch_bitmap);
1730 }
1731 }
1732
1733 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1734 goto out;
1735
1736 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1737 if (!cmd) {
1738 ret = -ENOMEM;
1739 goto out;
1740 }
1741
1742 cmd->ch_bit_map1 = tmp_ch_bitmap[0];
1743 cmd->ch_bit_map2 = tmp_ch_bitmap[1];
1744 cmd->dfs_region = wl->dfs_region;
1745
1746 wl1271_debug(DEBUG_CMD,
1747 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1748 cmd->ch_bit_map1, cmd->ch_bit_map2);
1749
1750 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1751 if (ret < 0) {
1752 wl1271_error("failed to send reg domain dfs config");
1753 goto out;
1754 }
1755
1756 ret = wl->ops->wait_for_event(wl,
1757 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1758 &timeout);
1759 if (ret < 0 || timeout) {
1760 wl1271_error("reg domain conf %serror",
1761 timeout ? "completion " : "");
1762 ret = timeout ? -ETIMEDOUT : ret;
1763 goto out;
1764 }
1765
1766 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1767 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1768
1769 out:
1770 kfree(cmd);
1771 return ret;
1772 }
1773
1774 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1775 {
1776 struct wl12xx_cmd_config_fwlog *cmd;
1777 int ret = 0;
1778
1779 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1780
1781 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1782 if (!cmd) {
1783 ret = -ENOMEM;
1784 goto out;
1785 }
1786
1787 cmd->logger_mode = wl->conf.fwlog.mode;
1788 cmd->log_severity = wl->conf.fwlog.severity;
1789 cmd->timestamp = wl->conf.fwlog.timestamp;
1790 cmd->output = wl->conf.fwlog.output;
1791 cmd->threshold = wl->conf.fwlog.threshold;
1792
1793 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1794 if (ret < 0) {
1795 wl1271_error("failed to send config firmware logger command");
1796 goto out_free;
1797 }
1798
1799 out_free:
1800 kfree(cmd);
1801
1802 out:
1803 return ret;
1804 }
1805
1806 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1807 {
1808 struct wl12xx_cmd_start_fwlog *cmd;
1809 int ret = 0;
1810
1811 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1812
1813 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1814 if (!cmd) {
1815 ret = -ENOMEM;
1816 goto out;
1817 }
1818
1819 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1820 if (ret < 0) {
1821 wl1271_error("failed to send start firmware logger command");
1822 goto out_free;
1823 }
1824
1825 out_free:
1826 kfree(cmd);
1827
1828 out:
1829 return ret;
1830 }
1831
1832 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1833 {
1834 struct wl12xx_cmd_stop_fwlog *cmd;
1835 int ret = 0;
1836
1837 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1838
1839 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1840 if (!cmd) {
1841 ret = -ENOMEM;
1842 goto out;
1843 }
1844
1845 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1846 if (ret < 0) {
1847 wl1271_error("failed to send stop firmware logger command");
1848 goto out_free;
1849 }
1850
1851 out_free:
1852 kfree(cmd);
1853
1854 out:
1855 return ret;
1856 }
1857
1858 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1859 u8 role_id, enum nl80211_band band, u8 channel)
1860 {
1861 struct wl12xx_cmd_roc *cmd;
1862 int ret = 0;
1863
1864 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1865
1866 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1867 return -EINVAL;
1868
1869 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1870 if (!cmd) {
1871 ret = -ENOMEM;
1872 goto out;
1873 }
1874
1875 cmd->role_id = role_id;
1876 cmd->channel = channel;
1877 switch (band) {
1878 case NL80211_BAND_2GHZ:
1879 cmd->band = WLCORE_BAND_2_4GHZ;
1880 break;
1881 case NL80211_BAND_5GHZ:
1882 cmd->band = WLCORE_BAND_5GHZ;
1883 break;
1884 default:
1885 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1886 ret = -EINVAL;
1887 goto out_free;
1888 }
1889
1890
1891 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1892 if (ret < 0) {
1893 wl1271_error("failed to send ROC command");
1894 goto out_free;
1895 }
1896
1897 out_free:
1898 kfree(cmd);
1899
1900 out:
1901 return ret;
1902 }
1903
1904 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1905 {
1906 struct wl12xx_cmd_croc *cmd;
1907 int ret = 0;
1908
1909 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1910
1911 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1912 if (!cmd) {
1913 ret = -ENOMEM;
1914 goto out;
1915 }
1916 cmd->role_id = role_id;
1917
1918 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1919 sizeof(*cmd), 0);
1920 if (ret < 0) {
1921 wl1271_error("failed to send ROC command");
1922 goto out_free;
1923 }
1924
1925 out_free:
1926 kfree(cmd);
1927
1928 out:
1929 return ret;
1930 }
1931
1932 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1933 enum nl80211_band band, u8 channel)
1934 {
1935 int ret = 0;
1936
1937 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1938 return 0;
1939
1940 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1941 if (ret < 0)
1942 goto out;
1943
1944 __set_bit(role_id, wl->roc_map);
1945 out:
1946 return ret;
1947 }
1948
1949 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1950 {
1951 int ret = 0;
1952
1953 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1954 return 0;
1955
1956 ret = wl12xx_cmd_croc(wl, role_id);
1957 if (ret < 0)
1958 goto out;
1959
1960 __clear_bit(role_id, wl->roc_map);
1961
1962 /*
1963 * Rearm the tx watchdog when removing the last ROC. This prevents
1964 * recoveries due to just finished ROCs - when Tx hasn't yet had
1965 * a chance to get out.
1966 */
1967 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1968 wl12xx_rearm_tx_watchdog_locked(wl);
1969 out:
1970 return ret;
1971 }
1972
1973 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1974 {
1975 struct wl12xx_cmd_stop_channel_switch *cmd;
1976 int ret;
1977
1978 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1979
1980 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1981 if (!cmd) {
1982 ret = -ENOMEM;
1983 goto out;
1984 }
1985
1986 cmd->role_id = wlvif->role_id;
1987
1988 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1989 if (ret < 0) {
1990 wl1271_error("failed to stop channel switch command");
1991 goto out_free;
1992 }
1993
1994 out_free:
1995 kfree(cmd);
1996
1997 out:
1998 return ret;
1999 }
2000
2001 /* start dev role and roc on its channel */
2002 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2003 enum nl80211_band band, int channel)
2004 {
2005 int ret;
2006
2007 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2008 wlvif->bss_type == BSS_TYPE_IBSS)))
2009 return -EINVAL;
2010
2011 /* the dev role is already started for p2p mgmt interfaces */
2012 if (!wlcore_is_p2p_mgmt(wlvif)) {
2013 ret = wl12xx_cmd_role_enable(wl,
2014 wl12xx_wlvif_to_vif(wlvif)->addr,
2015 WL1271_ROLE_DEVICE,
2016 &wlvif->dev_role_id);
2017 if (ret < 0)
2018 goto out;
2019 }
2020
2021 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2022 if (ret < 0)
2023 goto out_disable;
2024
2025 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2026 if (ret < 0)
2027 goto out_stop;
2028
2029 return 0;
2030
2031 out_stop:
2032 wl12xx_cmd_role_stop_dev(wl, wlvif);
2033 out_disable:
2034 if (!wlcore_is_p2p_mgmt(wlvif))
2035 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2036 out:
2037 return ret;
2038 }
2039
2040 /* croc dev hlid, and stop the role */
2041 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2042 {
2043 int ret;
2044
2045 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2046 wlvif->bss_type == BSS_TYPE_IBSS)))
2047 return -EINVAL;
2048
2049 /* flush all pending packets */
2050 ret = wlcore_tx_work_locked(wl);
2051 if (ret < 0)
2052 goto out;
2053
2054 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2055 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2056 if (ret < 0)
2057 goto out;
2058 }
2059
2060 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2061 if (ret < 0)
2062 goto out;
2063
2064 if (!wlcore_is_p2p_mgmt(wlvif)) {
2065 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2066 if (ret < 0)
2067 goto out;
2068 }
2069
2070 out:
2071 return ret;
2072 }
2073
2074 int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2075 u8 feature, u8 enable, u8 value)
2076 {
2077 struct wlcore_cmd_generic_cfg *cmd;
2078 int ret;
2079
2080 wl1271_debug(DEBUG_CMD,
2081 "cmd generic cfg (role %d feature %d enable %d value %d)",
2082 wlvif->role_id, feature, enable, value);
2083
2084 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2085 if (!cmd)
2086 return -ENOMEM;
2087
2088 cmd->role_id = wlvif->role_id;
2089 cmd->feature = feature;
2090 cmd->enable = enable;
2091 cmd->value = value;
2092
2093 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2094 if (ret < 0) {
2095 wl1271_error("failed to send generic cfg command");
2096 goto out_free;
2097 }
2098 out_free:
2099 kfree(cmd);
2100 return ret;
2101 }
2102 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
Linux with added FPC-III support