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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
33
34
35
36
37
38
39
40static 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
70
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
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
119
120
121static 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
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;
140fail:
141 wl12xx_queue_recovery_work(wl);
142 return ret;
143}
144
145
146
147
148
149int 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}
158EXPORT_SYMBOL_GPL(wl1271_cmd_send);
159
160
161
162
163
164int 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
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
217out:
218 pm_runtime_mark_last_busy(wl->dev);
219 pm_runtime_put_autosuspend(wl->dev);
220free_vector:
221 kfree(events_vector);
222 return ret;
223}
224EXPORT_SYMBOL_GPL(wlcore_cmd_wait_for_event_or_timeout);
225
226int 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
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
262out_free:
263 kfree(cmd);
264
265out:
266 return ret;
267}
268
269int 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
295out_free:
296 kfree(cmd);
297
298out:
299 return ret;
300}
301
302static 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
312int 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
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
329
330
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
339
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
350void 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
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
370
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
380
381
382 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
383
384
385
386
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
402u8 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}
418EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
419
420static 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
460err_hlid:
461
462 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
463
464out_free:
465 kfree(cmd);
466
467out:
468 return ret;
469}
470
471static 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
500out_free:
501 kfree(cmd);
502
503out:
504 return ret;
505}
506
507int 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
551
552
553
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
571err_hlid:
572
573 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
574
575out_free:
576 kfree(cmd);
577
578out:
579 return ret;
580}
581
582
583int 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
611out_free:
612 kfree(cmd);
613
614out:
615 return ret;
616}
617
618int 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
629 if (!ieee80211_vif_is_mesh(vif)) {
630
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
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
668 cmd->ap.reset_tsf = 1;
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
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
715out_free_bcast:
716 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
717
718out_free_global:
719 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
720
721out_free:
722 kfree(cmd);
723
724out:
725 return ret;
726}
727
728int 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
752out_free:
753 kfree(cmd);
754
755out:
756 return ret;
757}
758
759int 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
811err_hlid:
812
813 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
814
815out_free:
816 kfree(cmd);
817
818out:
819 return ret;
820}
821
822
823
824
825
826
827
828
829
830
831int 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}
850EXPORT_SYMBOL_GPL(wl1271_cmd_test);
851
852
853
854
855
856
857
858
859
860
861int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
862 size_t cmd_len, size_t res_len)
863{
864 struct acx_header *acx = buf;
865 int ret;
866
867 wl1271_debug(DEBUG_CMD, "cmd interrogate");
868
869 acx->id = cpu_to_le16(id);
870
871
872 acx->len = cpu_to_le16(res_len - sizeof(*acx));
873
874 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
875 if (ret < 0)
876 wl1271_error("INTERROGATE command failed");
877
878 return ret;
879}
880
881
882
883
884
885
886
887
888
889
890
891int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
892 size_t len, unsigned long valid_rets)
893{
894 struct acx_header *acx = buf;
895 int ret;
896
897 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
898
899 if (WARN_ON_ONCE(len < sizeof(*acx)))
900 return -EIO;
901
902 acx->id = cpu_to_le16(id);
903
904
905 acx->len = cpu_to_le16(len - sizeof(*acx));
906
907 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
908 valid_rets);
909 if (ret < 0) {
910 wl1271_warning("CONFIGURE command NOK");
911 return ret;
912 }
913
914 return ret;
915}
916
917
918
919
920
921int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
922{
923 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
924
925 if (ret < 0)
926 return ret;
927 return 0;
928}
929EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
930
931int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
932{
933 struct cmd_enabledisable_path *cmd;
934 int ret;
935 u16 cmd_rx, cmd_tx;
936
937 wl1271_debug(DEBUG_CMD, "cmd data path");
938
939 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
940 if (!cmd) {
941 ret = -ENOMEM;
942 goto out;
943 }
944
945
946 cmd->channel = 1;
947
948 if (enable) {
949 cmd_rx = CMD_ENABLE_RX;
950 cmd_tx = CMD_ENABLE_TX;
951 } else {
952 cmd_rx = CMD_DISABLE_RX;
953 cmd_tx = CMD_DISABLE_TX;
954 }
955
956 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
957 if (ret < 0) {
958 wl1271_error("rx %s cmd for channel %d failed",
959 enable ? "start" : "stop", cmd->channel);
960 goto out;
961 }
962
963 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
964 enable ? "start" : "stop", cmd->channel);
965
966 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
967 if (ret < 0) {
968 wl1271_error("tx %s cmd for channel %d failed",
969 enable ? "start" : "stop", cmd->channel);
970 goto out;
971 }
972
973 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
974 enable ? "start" : "stop", cmd->channel);
975
976out:
977 kfree(cmd);
978 return ret;
979}
980EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
981
982int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
983 u8 ps_mode, u16 auto_ps_timeout)
984{
985 struct wl1271_cmd_ps_params *ps_params = NULL;
986 int ret = 0;
987
988 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
989
990 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
991 if (!ps_params) {
992 ret = -ENOMEM;
993 goto out;
994 }
995
996 ps_params->role_id = wlvif->role_id;
997 ps_params->ps_mode = ps_mode;
998 ps_params->auto_ps_timeout = auto_ps_timeout;
999
1000 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1001 sizeof(*ps_params), 0);
1002 if (ret < 0) {
1003 wl1271_error("cmd set_ps_mode failed");
1004 goto out;
1005 }
1006
1007out:
1008 kfree(ps_params);
1009 return ret;
1010}
1011
1012int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1013 u16 template_id, void *buf, size_t buf_len,
1014 int index, u32 rates)
1015{
1016 struct wl1271_cmd_template_set *cmd;
1017 int ret = 0;
1018
1019 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1020 template_id, role_id);
1021
1022 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1023 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1024
1025 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1026 if (!cmd) {
1027 ret = -ENOMEM;
1028 goto out;
1029 }
1030
1031
1032 cmd->role_id = role_id;
1033 cmd->len = cpu_to_le16(buf_len);
1034 cmd->template_type = template_id;
1035 cmd->enabled_rates = cpu_to_le32(rates);
1036 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1037 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1038 cmd->index = index;
1039
1040 if (buf)
1041 memcpy(cmd->template_data, buf, buf_len);
1042
1043 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1044 if (ret < 0) {
1045 wl1271_warning("cmd set_template failed: %d", ret);
1046 goto out_free;
1047 }
1048
1049out_free:
1050 kfree(cmd);
1051
1052out:
1053 return ret;
1054}
1055
1056int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1057{
1058 struct sk_buff *skb = NULL;
1059 int size;
1060 void *ptr;
1061 int ret = -ENOMEM;
1062
1063
1064 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1065 size = sizeof(struct wl12xx_null_data_template);
1066 ptr = NULL;
1067 } else {
1068 skb = ieee80211_nullfunc_get(wl->hw,
1069 wl12xx_wlvif_to_vif(wlvif),
1070 false);
1071 if (!skb)
1072 goto out;
1073 size = skb->len;
1074 ptr = skb->data;
1075 }
1076
1077 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1078 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1079 wlvif->basic_rate);
1080
1081out:
1082 dev_kfree_skb(skb);
1083 if (ret)
1084 wl1271_warning("cmd build null data failed %d", ret);
1085
1086 return ret;
1087
1088}
1089
1090int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1091 struct wl12xx_vif *wlvif)
1092{
1093 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1094 struct sk_buff *skb = NULL;
1095 int ret = -ENOMEM;
1096
1097 skb = ieee80211_nullfunc_get(wl->hw, vif, false);
1098 if (!skb)
1099 goto out;
1100
1101 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1102 skb->data, skb->len,
1103 wlvif->sta.klv_template_id,
1104 wlvif->basic_rate);
1105
1106out:
1107 dev_kfree_skb(skb);
1108 if (ret)
1109 wl1271_warning("cmd build klv null data failed %d", ret);
1110
1111 return ret;
1112
1113}
1114
1115int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1116 u16 aid)
1117{
1118 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1119 struct sk_buff *skb;
1120 int ret = 0;
1121
1122 skb = ieee80211_pspoll_get(wl->hw, vif);
1123 if (!skb)
1124 goto out;
1125
1126 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1127 CMD_TEMPL_PS_POLL, skb->data,
1128 skb->len, 0, wlvif->basic_rate_set);
1129
1130out:
1131 dev_kfree_skb(skb);
1132 return ret;
1133}
1134
1135int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1136 u8 role_id, u8 band,
1137 const u8 *ssid, size_t ssid_len,
1138 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1139 size_t ie1_len, bool sched_scan)
1140{
1141 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1142 struct sk_buff *skb;
1143 int ret;
1144 u32 rate;
1145 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1146 u16 template_id_5 = wl->scan_templ_id_5;
1147
1148 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1149
1150 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1151 ie0_len + ie1_len);
1152 if (!skb) {
1153 ret = -ENOMEM;
1154 goto out;
1155 }
1156 if (ie0_len)
1157 skb_put_data(skb, ie0, ie0_len);
1158 if (ie1_len)
1159 skb_put_data(skb, ie1, ie1_len);
1160
1161 if (sched_scan &&
1162 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1163 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1164 template_id_5 = wl->sched_scan_templ_id_5;
1165 }
1166
1167 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1168 if (band == NL80211_BAND_2GHZ)
1169 ret = wl1271_cmd_template_set(wl, role_id,
1170 template_id_2_4,
1171 skb->data, skb->len, 0, rate);
1172 else
1173 ret = wl1271_cmd_template_set(wl, role_id,
1174 template_id_5,
1175 skb->data, skb->len, 0, rate);
1176
1177out:
1178 dev_kfree_skb(skb);
1179 return ret;
1180}
1181EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1182
1183struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1184 struct wl12xx_vif *wlvif,
1185 struct sk_buff *skb)
1186{
1187 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1188 int ret;
1189 u32 rate;
1190
1191 if (!skb)
1192 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1193 if (!skb)
1194 goto out;
1195
1196 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1197
1198 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1199 if (wlvif->band == NL80211_BAND_2GHZ)
1200 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1201 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1202 skb->data, skb->len, 0, rate);
1203 else
1204 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1205 CMD_TEMPL_CFG_PROBE_REQ_5,
1206 skb->data, skb->len, 0, rate);
1207
1208 if (ret < 0)
1209 wl1271_error("Unable to set ap probe request template.");
1210
1211out:
1212 return skb;
1213}
1214
1215int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1216{
1217 int ret, extra = 0;
1218 u16 fc;
1219 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1220 struct sk_buff *skb;
1221 struct wl12xx_arp_rsp_template *tmpl;
1222 struct ieee80211_hdr_3addr *hdr;
1223 struct arphdr *arp_hdr;
1224
1225 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1226 WL1271_EXTRA_SPACE_MAX);
1227 if (!skb) {
1228 wl1271_error("failed to allocate buffer for arp rsp template");
1229 return -ENOMEM;
1230 }
1231
1232 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1233
1234 tmpl = skb_put_zero(skb, sizeof(*tmpl));
1235
1236
1237 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1238 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1239
1240
1241 arp_hdr = &tmpl->arp_hdr;
1242 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1243 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1244 arp_hdr->ar_hln = ETH_ALEN;
1245 arp_hdr->ar_pln = 4;
1246 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1247
1248
1249 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1250 tmpl->sender_ip = wlvif->ip_addr;
1251
1252
1253 switch (wlvif->encryption_type) {
1254 case KEY_TKIP:
1255 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1256 extra = WL1271_EXTRA_SPACE_TKIP;
1257 break;
1258 case KEY_AES:
1259 extra = WL1271_EXTRA_SPACE_AES;
1260 break;
1261 case KEY_NONE:
1262 case KEY_WEP:
1263 case KEY_GEM:
1264 extra = 0;
1265 break;
1266 default:
1267 wl1271_warning("Unknown encryption type: %d",
1268 wlvif->encryption_type);
1269 ret = -EINVAL;
1270 goto out;
1271 }
1272
1273 if (extra) {
1274 u8 *space = skb_push(skb, extra);
1275 memset(space, 0, extra);
1276 }
1277
1278
1279 if (wlvif->sta.qos)
1280 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1281
1282
1283 hdr = skb_push(skb, sizeof(*hdr));
1284 memset(hdr, 0, sizeof(*hdr));
1285 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1286 if (wlvif->sta.qos)
1287 fc |= IEEE80211_STYPE_QOS_DATA;
1288 else
1289 fc |= IEEE80211_STYPE_DATA;
1290 if (wlvif->encryption_type != KEY_NONE)
1291 fc |= IEEE80211_FCTL_PROTECTED;
1292
1293 hdr->frame_control = cpu_to_le16(fc);
1294 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1295 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1296 eth_broadcast_addr(hdr->addr3);
1297
1298 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1299 skb->data, skb->len, 0,
1300 wlvif->basic_rate);
1301out:
1302 dev_kfree_skb(skb);
1303 return ret;
1304}
1305
1306int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1307{
1308 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1309 struct ieee80211_qos_hdr template;
1310
1311 memset(&template, 0, sizeof(template));
1312
1313 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1314 memcpy(template.addr2, vif->addr, ETH_ALEN);
1315 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1316
1317 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1318 IEEE80211_STYPE_QOS_NULLFUNC |
1319 IEEE80211_FCTL_TODS);
1320
1321
1322 template.qos_ctrl = cpu_to_le16(0);
1323
1324 return wl1271_cmd_template_set(wl, wlvif->role_id,
1325 CMD_TEMPL_QOS_NULL_DATA, &template,
1326 sizeof(template), 0,
1327 wlvif->basic_rate);
1328}
1329
1330int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1331{
1332 struct wl1271_cmd_set_keys *cmd;
1333 int ret = 0;
1334
1335 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1336
1337 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1338 if (!cmd) {
1339 ret = -ENOMEM;
1340 goto out;
1341 }
1342
1343 cmd->hlid = hlid;
1344 cmd->key_id = id;
1345 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1346 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1347 cmd->key_type = KEY_WEP;
1348
1349 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1350 if (ret < 0) {
1351 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1352 goto out;
1353 }
1354
1355out:
1356 kfree(cmd);
1357
1358 return ret;
1359}
1360
1361int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1362 u16 action, u8 id, u8 key_type,
1363 u8 key_size, const u8 *key, const u8 *addr,
1364 u32 tx_seq_32, u16 tx_seq_16)
1365{
1366 struct wl1271_cmd_set_keys *cmd;
1367 int ret = 0;
1368
1369
1370 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1371 return 0;
1372
1373 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1374 if (!cmd) {
1375 ret = -ENOMEM;
1376 goto out;
1377 }
1378
1379 cmd->hlid = wlvif->sta.hlid;
1380
1381 if (key_type == KEY_WEP)
1382 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1383 else if (is_broadcast_ether_addr(addr))
1384 cmd->lid_key_type = BROADCAST_LID_TYPE;
1385 else
1386 cmd->lid_key_type = UNICAST_LID_TYPE;
1387
1388 cmd->key_action = cpu_to_le16(action);
1389 cmd->key_size = key_size;
1390 cmd->key_type = key_type;
1391
1392 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1393 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1394
1395 cmd->key_id = id;
1396
1397 if (key_type == KEY_TKIP) {
1398
1399
1400
1401
1402
1403
1404 memcpy(cmd->key, key, 16);
1405 memcpy(cmd->key + 16, key + 24, 8);
1406 memcpy(cmd->key + 24, key + 16, 8);
1407
1408 } else {
1409 memcpy(cmd->key, key, key_size);
1410 }
1411
1412 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1413
1414 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1415 if (ret < 0) {
1416 wl1271_warning("could not set keys");
1417 goto out;
1418 }
1419
1420out:
1421 kfree(cmd);
1422
1423 return ret;
1424}
1425
1426
1427
1428
1429
1430int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1431 u16 action, u8 id, u8 key_type,
1432 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1433 u16 tx_seq_16, bool is_pairwise)
1434{
1435 struct wl1271_cmd_set_keys *cmd;
1436 int ret = 0;
1437 u8 lid_type;
1438
1439 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1440 if (!cmd)
1441 return -ENOMEM;
1442
1443 if (hlid == wlvif->ap.bcast_hlid) {
1444 if (key_type == KEY_WEP)
1445 lid_type = WEP_DEFAULT_LID_TYPE;
1446 else
1447 lid_type = BROADCAST_LID_TYPE;
1448 } else if (is_pairwise) {
1449 lid_type = UNICAST_LID_TYPE;
1450 } else {
1451 lid_type = BROADCAST_LID_TYPE;
1452 }
1453
1454 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1455 " hlid: %d", (int)action, (int)id, (int)lid_type,
1456 (int)key_type, (int)hlid);
1457
1458 cmd->lid_key_type = lid_type;
1459 cmd->hlid = hlid;
1460 cmd->key_action = cpu_to_le16(action);
1461 cmd->key_size = key_size;
1462 cmd->key_type = key_type;
1463 cmd->key_id = id;
1464 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1465 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1466
1467 if (key_type == KEY_TKIP) {
1468
1469
1470
1471
1472
1473
1474 memcpy(cmd->key, key, 16);
1475 memcpy(cmd->key + 16, key + 24, 8);
1476 memcpy(cmd->key + 24, key + 16, 8);
1477 } else {
1478 memcpy(cmd->key, key, key_size);
1479 }
1480
1481 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1482
1483 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1484 if (ret < 0) {
1485 wl1271_warning("could not set ap keys");
1486 goto out;
1487 }
1488
1489out:
1490 kfree(cmd);
1491 return ret;
1492}
1493
1494int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1495 u8 hlid)
1496{
1497 struct wl12xx_cmd_set_peer_state *cmd;
1498 int ret = 0;
1499
1500 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1501
1502 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1503 if (!cmd) {
1504 ret = -ENOMEM;
1505 goto out;
1506 }
1507
1508 cmd->hlid = hlid;
1509 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1510
1511
1512 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1513 cmd->wmm = wlvif->wmm_enabled;
1514
1515 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1516 if (ret < 0) {
1517 wl1271_error("failed to send set peer state command");
1518 goto out_free;
1519 }
1520
1521out_free:
1522 kfree(cmd);
1523
1524out:
1525 return ret;
1526}
1527
1528int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1529 struct ieee80211_sta *sta, u8 hlid)
1530{
1531 struct wl12xx_cmd_add_peer *cmd;
1532 int i, ret;
1533 u32 sta_rates;
1534
1535 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1536
1537 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1538 if (!cmd) {
1539 ret = -ENOMEM;
1540 goto out;
1541 }
1542
1543 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1544 cmd->bss_index = WL1271_AP_BSS_INDEX;
1545 cmd->aid = sta->aid;
1546 cmd->hlid = hlid;
1547 cmd->sp_len = sta->max_sp;
1548 cmd->wmm = sta->wme ? 1 : 0;
1549 cmd->session_id = wl->session_ids[hlid];
1550 cmd->role_id = wlvif->role_id;
1551
1552 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1553 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1554 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1555 WL1271_PSD_UPSD_TRIGGER;
1556 else
1557 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1558 WL1271_PSD_LEGACY;
1559
1560
1561 sta_rates = sta->supp_rates[wlvif->band];
1562 if (sta->ht_cap.ht_supported)
1563 sta_rates |=
1564 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1565 (sta->ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1566
1567 cmd->supported_rates =
1568 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1569 wlvif->band));
1570
1571 if (!cmd->supported_rates) {
1572 wl1271_debug(DEBUG_CMD,
1573 "peer has no supported rates yet, configuring basic rates: 0x%x",
1574 wlvif->basic_rate_set);
1575 cmd->supported_rates = cpu_to_le32(wlvif->basic_rate_set);
1576 }
1577
1578 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1579 cmd->supported_rates, sta->uapsd_queues);
1580
1581 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1582 if (ret < 0) {
1583 wl1271_error("failed to initiate cmd add peer");
1584 goto out_free;
1585 }
1586
1587out_free:
1588 kfree(cmd);
1589
1590out:
1591 return ret;
1592}
1593
1594int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1595 u8 hlid)
1596{
1597 struct wl12xx_cmd_remove_peer *cmd;
1598 int ret;
1599 bool timeout = false;
1600
1601 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1602
1603 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1604 if (!cmd) {
1605 ret = -ENOMEM;
1606 goto out;
1607 }
1608
1609 cmd->hlid = hlid;
1610
1611 cmd->reason_opcode = 0;
1612 cmd->send_deauth_flag = 0;
1613 cmd->role_id = wlvif->role_id;
1614
1615 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1616 if (ret < 0) {
1617 wl1271_error("failed to initiate cmd remove peer");
1618 goto out_free;
1619 }
1620
1621 ret = wl->ops->wait_for_event(wl,
1622 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1623 &timeout);
1624
1625
1626
1627
1628
1629
1630 if (ret)
1631 wl12xx_queue_recovery_work(wl);
1632
1633out_free:
1634 kfree(cmd);
1635
1636out:
1637 return ret;
1638}
1639
1640static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1641{
1642
1643
1644
1645
1646 switch (band) {
1647 case NL80211_BAND_2GHZ:
1648
1649 if (ch >= 1 && ch <= 14)
1650 return ch - 1;
1651 break;
1652 case NL80211_BAND_5GHZ:
1653 switch (ch) {
1654 case 8 ... 16:
1655
1656 return 18 + (ch-8)/4;
1657 case 34 ... 48:
1658
1659 return 21 + (ch-34)/2;
1660 case 52 ... 64:
1661
1662 return 29 + (ch-52)/4;
1663 case 100 ... 140:
1664
1665 return 33 + (ch-100)/4;
1666 case 149 ... 165:
1667
1668 return 44 + (ch-149)/4;
1669 default:
1670 break;
1671 }
1672 break;
1673 default:
1674 break;
1675 }
1676
1677 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1678 return -1;
1679}
1680
1681void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1682 enum nl80211_band band)
1683{
1684 int ch_bit_idx = 0;
1685
1686 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1687 return;
1688
1689 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1690
1691 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1692 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1693}
1694
1695int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1696{
1697 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1698 int ret = 0, i, b, ch_bit_idx;
1699 __le32 tmp_ch_bitmap[2] __aligned(sizeof(unsigned long));
1700 struct wiphy *wiphy = wl->hw->wiphy;
1701 struct ieee80211_supported_band *band;
1702 bool timeout = false;
1703
1704 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1705 return 0;
1706
1707 wl1271_debug(DEBUG_CMD, "cmd reg domain config");
1708
1709 memcpy(tmp_ch_bitmap, wl->reg_ch_conf_pending, sizeof(tmp_ch_bitmap));
1710
1711 for (b = NL80211_BAND_2GHZ; b <= NL80211_BAND_5GHZ; b++) {
1712 band = wiphy->bands[b];
1713 for (i = 0; i < band->n_channels; i++) {
1714 struct ieee80211_channel *channel = &band->channels[i];
1715 u16 ch = channel->hw_value;
1716 u32 flags = channel->flags;
1717
1718 if (flags & (IEEE80211_CHAN_DISABLED |
1719 IEEE80211_CHAN_NO_IR))
1720 continue;
1721
1722 if ((flags & IEEE80211_CHAN_RADAR) &&
1723 channel->dfs_state != NL80211_DFS_AVAILABLE)
1724 continue;
1725
1726 ch_bit_idx = wlcore_get_reg_conf_ch_idx(b, ch);
1727 if (ch_bit_idx < 0)
1728 continue;
1729
1730 __set_bit_le(ch_bit_idx, (long *)tmp_ch_bitmap);
1731 }
1732 }
1733
1734 if (!memcmp(tmp_ch_bitmap, wl->reg_ch_conf_last, sizeof(tmp_ch_bitmap)))
1735 goto out;
1736
1737 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1738 if (!cmd) {
1739 ret = -ENOMEM;
1740 goto out;
1741 }
1742
1743 cmd->ch_bit_map1 = tmp_ch_bitmap[0];
1744 cmd->ch_bit_map2 = tmp_ch_bitmap[1];
1745 cmd->dfs_region = wl->dfs_region;
1746
1747 wl1271_debug(DEBUG_CMD,
1748 "cmd reg domain bitmap1: 0x%08x, bitmap2: 0x%08x",
1749 cmd->ch_bit_map1, cmd->ch_bit_map2);
1750
1751 ret = wl1271_cmd_send(wl, CMD_DFS_CHANNEL_CONFIG, cmd, sizeof(*cmd), 0);
1752 if (ret < 0) {
1753 wl1271_error("failed to send reg domain dfs config");
1754 goto out;
1755 }
1756
1757 ret = wl->ops->wait_for_event(wl,
1758 WLCORE_EVENT_DFS_CONFIG_COMPLETE,
1759 &timeout);
1760 if (ret < 0 || timeout) {
1761 wl1271_error("reg domain conf %serror",
1762 timeout ? "completion " : "");
1763 ret = timeout ? -ETIMEDOUT : ret;
1764 goto out;
1765 }
1766
1767 memcpy(wl->reg_ch_conf_last, tmp_ch_bitmap, sizeof(tmp_ch_bitmap));
1768 memset(wl->reg_ch_conf_pending, 0, sizeof(wl->reg_ch_conf_pending));
1769
1770out:
1771 kfree(cmd);
1772 return ret;
1773}
1774
1775int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1776{
1777 struct wl12xx_cmd_config_fwlog *cmd;
1778 int ret = 0;
1779
1780 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1781
1782 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1783 if (!cmd) {
1784 ret = -ENOMEM;
1785 goto out;
1786 }
1787
1788 cmd->logger_mode = wl->conf.fwlog.mode;
1789 cmd->log_severity = wl->conf.fwlog.severity;
1790 cmd->timestamp = wl->conf.fwlog.timestamp;
1791 cmd->output = wl->conf.fwlog.output;
1792 cmd->threshold = wl->conf.fwlog.threshold;
1793
1794 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1795 if (ret < 0) {
1796 wl1271_error("failed to send config firmware logger command");
1797 goto out_free;
1798 }
1799
1800out_free:
1801 kfree(cmd);
1802
1803out:
1804 return ret;
1805}
1806
1807int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1808{
1809 struct wl12xx_cmd_start_fwlog *cmd;
1810 int ret = 0;
1811
1812 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1813
1814 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1815 if (!cmd) {
1816 ret = -ENOMEM;
1817 goto out;
1818 }
1819
1820 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1821 if (ret < 0) {
1822 wl1271_error("failed to send start firmware logger command");
1823 goto out_free;
1824 }
1825
1826out_free:
1827 kfree(cmd);
1828
1829out:
1830 return ret;
1831}
1832
1833int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1834{
1835 struct wl12xx_cmd_stop_fwlog *cmd;
1836 int ret = 0;
1837
1838 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1839
1840 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1841 if (!cmd) {
1842 ret = -ENOMEM;
1843 goto out;
1844 }
1845
1846 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1847 if (ret < 0) {
1848 wl1271_error("failed to send stop firmware logger command");
1849 goto out_free;
1850 }
1851
1852out_free:
1853 kfree(cmd);
1854
1855out:
1856 return ret;
1857}
1858
1859static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1860 u8 role_id, enum nl80211_band band, u8 channel)
1861{
1862 struct wl12xx_cmd_roc *cmd;
1863 int ret = 0;
1864
1865 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", channel, role_id);
1866
1867 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1868 return -EINVAL;
1869
1870 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1871 if (!cmd) {
1872 ret = -ENOMEM;
1873 goto out;
1874 }
1875
1876 cmd->role_id = role_id;
1877 cmd->channel = channel;
1878 switch (band) {
1879 case NL80211_BAND_2GHZ:
1880 cmd->band = WLCORE_BAND_2_4GHZ;
1881 break;
1882 case NL80211_BAND_5GHZ:
1883 cmd->band = WLCORE_BAND_5GHZ;
1884 break;
1885 default:
1886 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1887 ret = -EINVAL;
1888 goto out_free;
1889 }
1890
1891
1892 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1893 if (ret < 0) {
1894 wl1271_error("failed to send ROC command");
1895 goto out_free;
1896 }
1897
1898out_free:
1899 kfree(cmd);
1900
1901out:
1902 return ret;
1903}
1904
1905static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1906{
1907 struct wl12xx_cmd_croc *cmd;
1908 int ret = 0;
1909
1910 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1911
1912 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1913 if (!cmd) {
1914 ret = -ENOMEM;
1915 goto out;
1916 }
1917 cmd->role_id = role_id;
1918
1919 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1920 sizeof(*cmd), 0);
1921 if (ret < 0) {
1922 wl1271_error("failed to send ROC command");
1923 goto out_free;
1924 }
1925
1926out_free:
1927 kfree(cmd);
1928
1929out:
1930 return ret;
1931}
1932
1933int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id,
1934 enum nl80211_band band, u8 channel)
1935{
1936 int ret = 0;
1937
1938 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1939 return 0;
1940
1941 ret = wl12xx_cmd_roc(wl, wlvif, role_id, band, channel);
1942 if (ret < 0)
1943 goto out;
1944
1945 __set_bit(role_id, wl->roc_map);
1946out:
1947 return ret;
1948}
1949
1950int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1951{
1952 int ret = 0;
1953
1954 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1955 return 0;
1956
1957 ret = wl12xx_cmd_croc(wl, role_id);
1958 if (ret < 0)
1959 goto out;
1960
1961 __clear_bit(role_id, wl->roc_map);
1962
1963
1964
1965
1966
1967
1968 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1969 wl12xx_rearm_tx_watchdog_locked(wl);
1970out:
1971 return ret;
1972}
1973
1974int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1975{
1976 struct wl12xx_cmd_stop_channel_switch *cmd;
1977 int ret;
1978
1979 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1980
1981 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1982 if (!cmd) {
1983 ret = -ENOMEM;
1984 goto out;
1985 }
1986
1987 cmd->role_id = wlvif->role_id;
1988
1989 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1990 if (ret < 0) {
1991 wl1271_error("failed to stop channel switch command");
1992 goto out_free;
1993 }
1994
1995out_free:
1996 kfree(cmd);
1997
1998out:
1999 return ret;
2000}
2001
2002
2003int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2004 enum nl80211_band band, int channel)
2005{
2006 int ret;
2007
2008 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2009 wlvif->bss_type == BSS_TYPE_IBSS)))
2010 return -EINVAL;
2011
2012
2013 if (!wlcore_is_p2p_mgmt(wlvif)) {
2014 ret = wl12xx_cmd_role_enable(wl,
2015 wl12xx_wlvif_to_vif(wlvif)->addr,
2016 WL1271_ROLE_DEVICE,
2017 &wlvif->dev_role_id);
2018 if (ret < 0)
2019 goto out;
2020 }
2021
2022 ret = wl12xx_cmd_role_start_dev(wl, wlvif, band, channel);
2023 if (ret < 0)
2024 goto out_disable;
2025
2026 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id, band, channel);
2027 if (ret < 0)
2028 goto out_stop;
2029
2030 return 0;
2031
2032out_stop:
2033 wl12xx_cmd_role_stop_dev(wl, wlvif);
2034out_disable:
2035 if (!wlcore_is_p2p_mgmt(wlvif))
2036 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2037out:
2038 return ret;
2039}
2040
2041
2042int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
2043{
2044 int ret;
2045
2046 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
2047 wlvif->bss_type == BSS_TYPE_IBSS)))
2048 return -EINVAL;
2049
2050
2051 ret = wlcore_tx_work_locked(wl);
2052 if (ret < 0)
2053 goto out;
2054
2055 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
2056 ret = wl12xx_croc(wl, wlvif->dev_role_id);
2057 if (ret < 0)
2058 goto out;
2059 }
2060
2061 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
2062 if (ret < 0)
2063 goto out;
2064
2065 if (!wlcore_is_p2p_mgmt(wlvif)) {
2066 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2067 if (ret < 0)
2068 goto out;
2069 }
2070
2071out:
2072 return ret;
2073}
2074
2075int wlcore_cmd_generic_cfg(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2076 u8 feature, u8 enable, u8 value)
2077{
2078 struct wlcore_cmd_generic_cfg *cmd;
2079 int ret;
2080
2081 wl1271_debug(DEBUG_CMD,
2082 "cmd generic cfg (role %d feature %d enable %d value %d)",
2083 wlvif->role_id, feature, enable, value);
2084
2085 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2086 if (!cmd)
2087 return -ENOMEM;
2088
2089 cmd->role_id = wlvif->role_id;
2090 cmd->feature = feature;
2091 cmd->enable = enable;
2092 cmd->value = value;
2093
2094 ret = wl1271_cmd_send(wl, CMD_GENERIC_CFG, cmd, sizeof(*cmd), 0);
2095 if (ret < 0) {
2096 wl1271_error("failed to send generic cfg command");
2097 goto out_free;
2098 }
2099out_free:
2100 kfree(cmd);
2101 return ret;
2102}
2103EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
2104
