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