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 the last sec_pn16 value from the current FW status. On recovery,
337 * we might not have fw_status yet, and tx_lnk_sec_pn16[] will be NULL.
338 */
339 if (wl->fw_status->counters.tx_lnk_sec_pn16)
340 wl->links[link].prev_sec_pn16 =
341 le16_to_cpu(wl->fw_status->counters.tx_lnk_sec_pn16[link]);
342
343 /*
344 * Take saved value for total freed packets from wlvif, in case this is
345 * recovery/resume
346 */
347 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
348 wl->links[link].total_freed_pkts = wlvif->total_freed_pkts;
349
350 *hlid = link;
351
352 wl->active_link_count++;
353 return 0;
354 }
355
wl12xx_free_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)356 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
357 {
358 unsigned long flags;
359
360 if (*hlid == WL12XX_INVALID_LINK_ID)
361 return;
362
363 /* these bits are used by op_tx */
364 spin_lock_irqsave(&wl->wl_lock, flags);
365 __clear_bit(*hlid, wl->links_map);
366 __clear_bit(*hlid, wlvif->links_map);
367 spin_unlock_irqrestore(&wl->wl_lock, flags);
368
369 wl->links[*hlid].allocated_pkts = 0;
370 wl->links[*hlid].prev_freed_pkts = 0;
371 wl->links[*hlid].prev_sec_pn16 = 0;
372 wl->links[*hlid].ba_bitmap = 0;
373 eth_zero_addr(wl->links[*hlid].addr);
374
375 /*
376 * At this point op_tx() will not add more packets to the queues. We
377 * can purge them.
378 */
379 wl1271_tx_reset_link_queues(wl, *hlid);
380 wl->links[*hlid].wlvif = NULL;
381
382 if (wlvif->bss_type == BSS_TYPE_AP_BSS &&
383 *hlid == wlvif->ap.bcast_hlid) {
384 u32 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING;
385 /*
386 * save the total freed packets in the wlvif, in case this is
387 * recovery or suspend
388 */
389 wlvif->total_freed_pkts = wl->links[*hlid].total_freed_pkts;
390
391 /*
392 * increment the initial seq number on recovery to account for
393 * transmitted packets that we haven't yet got in the FW status
394 */
395 if (wlvif->encryption_type == KEY_GEM)
396 sqn_padding = WL1271_TX_SQN_POST_RECOVERY_PADDING_GEM;
397
398 if (test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
399 wlvif->total_freed_pkts += sqn_padding;
400 }
401
402 wl->links[*hlid].total_freed_pkts = 0;
403
404 *hlid = WL12XX_INVALID_LINK_ID;
405 wl->active_link_count--;
406 WARN_ON_ONCE(wl->active_link_count < 0);
407 }
408
wlcore_get_native_channel_type(u8 nl_channel_type)409 u8 wlcore_get_native_channel_type(u8 nl_channel_type)
410 {
411 switch (nl_channel_type) {
412 case NL80211_CHAN_NO_HT:
413 return WLCORE_CHAN_NO_HT;
414 case NL80211_CHAN_HT20:
415 return WLCORE_CHAN_HT20;
416 case NL80211_CHAN_HT40MINUS:
417 return WLCORE_CHAN_HT40MINUS;
418 case NL80211_CHAN_HT40PLUS:
419 return WLCORE_CHAN_HT40PLUS;
420 default:
421 WARN_ON(1);
422 return WLCORE_CHAN_NO_HT;
423 }
424 }
425 EXPORT_SYMBOL_GPL(wlcore_get_native_channel_type);
426
wl12xx_cmd_role_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif,enum nl80211_band band,int channel)427 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
428 struct wl12xx_vif *wlvif,
429 enum nl80211_band band,
430 int channel)
431 {
432 struct wl12xx_cmd_role_start *cmd;
433 int ret;
434
435 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
436 if (!cmd) {
437 ret = -ENOMEM;
438 goto out;
439 }
440
441 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
442
443 cmd->role_id = wlvif->dev_role_id;
444 if (band == NL80211_BAND_5GHZ)
445 cmd->band = WLCORE_BAND_5GHZ;
446 cmd->channel = channel;
447
448 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
449 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
450 if (ret)
451 goto out_free;
452 }
453 cmd->device.hlid = wlvif->dev_hlid;
454 cmd->device.session = wl->session_ids[wlvif->dev_hlid];
455
456 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
457 cmd->role_id, cmd->device.hlid, cmd->device.session);
458
459 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
460 if (ret < 0) {
461 wl1271_error("failed to initiate cmd role enable");
462 goto err_hlid;
463 }
464
465 goto out_free;
466
467 err_hlid:
468 /* clear links on error */
469 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
470
471 out_free:
472 kfree(cmd);
473
474 out:
475 return ret;
476 }
477
wl12xx_cmd_role_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)478 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
479 struct wl12xx_vif *wlvif)
480 {
481 struct wl12xx_cmd_role_stop *cmd;
482 int ret;
483
484 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
485 return -EINVAL;
486
487 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
488 if (!cmd) {
489 ret = -ENOMEM;
490 goto out;
491 }
492
493 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
494
495 cmd->role_id = wlvif->dev_role_id;
496 cmd->disc_type = DISCONNECT_IMMEDIATE;
497 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
498
499 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
500 if (ret < 0) {
501 wl1271_error("failed to initiate cmd role stop");
502 goto out_free;
503 }
504
505 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
506
507 out_free:
508 kfree(cmd);
509
510 out:
511 return ret;
512 }
513
wl12xx_cmd_role_start_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)514 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
515 {
516 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
517 struct wl12xx_cmd_role_start *cmd;
518 u32 supported_rates;
519 int ret;
520
521 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
522 if (!cmd) {
523 ret = -ENOMEM;
524 goto out;
525 }
526
527 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
528
529 cmd->role_id = wlvif->role_id;
530 if (wlvif->band == NL80211_BAND_5GHZ)
531 cmd->band = WLCORE_BAND_5GHZ;
532 cmd->channel = wlvif->channel;
533 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
534 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
535 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
536 cmd->sta.ssid_len = wlvif->ssid_len;
537 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
538 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
539
540 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
541 wlcore_hw_sta_get_ap_rate_mask(wl, wlvif);
542 if (wlvif->p2p)
543 supported_rates &= ~CONF_TX_CCK_RATES;
544
545 cmd->sta.local_rates = cpu_to_le32(supported_rates);
546
547 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
548
549 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
550 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
551 if (ret)
552 goto out_free;
553 }
554 cmd->sta.hlid = wlvif->sta.hlid;
555 cmd->sta.session = wl->session_ids[wlvif->sta.hlid];
556 /*
557 * We don't have the correct remote rates in this stage. The
558 * rates will be reconfigured later, after association, if the
559 * firmware supports ACX_PEER_CAP. Otherwise, there's nothing
560 * we can do, so use all supported_rates here.
561 */
562 cmd->sta.remote_rates = cpu_to_le32(supported_rates);
563
564 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
565 "basic_rate_set: 0x%x, remote_rates: 0x%x",
566 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
567 wlvif->basic_rate_set, wlvif->rate_set);
568
569 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
570 if (ret < 0) {
571 wl1271_error("failed to initiate cmd role start sta");
572 goto err_hlid;
573 }
574
575 wlvif->sta.role_chan_type = wlvif->channel_type;
576 goto out_free;
577
578 err_hlid:
579 /* clear links on error. */
580 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
581
582 out_free:
583 kfree(cmd);
584
585 out:
586 return ret;
587 }
588
589 /* use this function to stop ibss as well */
wl12xx_cmd_role_stop_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)590 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
591 {
592 struct wl12xx_cmd_role_stop *cmd;
593 int ret;
594
595 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
596 return -EINVAL;
597
598 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
599 if (!cmd) {
600 ret = -ENOMEM;
601 goto out;
602 }
603
604 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
605
606 cmd->role_id = wlvif->role_id;
607 cmd->disc_type = DISCONNECT_IMMEDIATE;
608 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
609
610 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
611 if (ret < 0) {
612 wl1271_error("failed to initiate cmd role stop sta");
613 goto out_free;
614 }
615
616 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
617
618 out_free:
619 kfree(cmd);
620
621 out:
622 return ret;
623 }
624
wl12xx_cmd_role_start_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)625 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
626 {
627 struct wl12xx_cmd_role_start *cmd;
628 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
629 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
630 u32 supported_rates;
631 int ret;
632
633 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
634
635 /* If MESH --> ssid_len is always 0 */
636 if (!ieee80211_vif_is_mesh(vif)) {
637 /* trying to use hidden SSID with an old hostapd version */
638 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
639 wl1271_error("got a null SSID from beacon/bss");
640 ret = -EINVAL;
641 goto out;
642 }
643 }
644
645 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
646 if (!cmd) {
647 ret = -ENOMEM;
648 goto out;
649 }
650
651 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
652 if (ret < 0)
653 goto out_free;
654
655 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
656 if (ret < 0)
657 goto out_free_global;
658
659 /* use the previous security seq, if this is a recovery/resume */
660 wl->links[wlvif->ap.bcast_hlid].total_freed_pkts =
661 wlvif->total_freed_pkts;
662
663 cmd->role_id = wlvif->role_id;
664 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
665 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
666 cmd->ap.global_hlid = wlvif->ap.global_hlid;
667 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
668 cmd->ap.global_session_id = wl->session_ids[wlvif->ap.global_hlid];
669 cmd->ap.bcast_session_id = wl->session_ids[wlvif->ap.bcast_hlid];
670 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
671 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
672 cmd->ap.dtim_interval = bss_conf->dtim_period;
673 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
674 /* FIXME: Change when adding DFS */
675 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
676 cmd->ap.wmm = wlvif->wmm_enabled;
677 cmd->channel = wlvif->channel;
678 cmd->channel_type = wlcore_get_native_channel_type(wlvif->channel_type);
679
680 if (!bss_conf->hidden_ssid) {
681 /* take the SSID from the beacon for backward compatibility */
682 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
683 cmd->ap.ssid_len = wlvif->ssid_len;
684 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
685 } else {
686 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
687 cmd->ap.ssid_len = vif->cfg.ssid_len;
688 memcpy(cmd->ap.ssid, vif->cfg.ssid, vif->cfg.ssid_len);
689 }
690
691 supported_rates = CONF_TX_ENABLED_RATES | CONF_TX_MCS_RATES |
692 wlcore_hw_ap_get_mimo_wide_rate_mask(wl, wlvif);
693 if (wlvif->p2p)
694 supported_rates &= ~CONF_TX_CCK_RATES;
695
696 wl1271_debug(DEBUG_CMD, "cmd role start ap with supported_rates 0x%08x",
697 supported_rates);
698
699 cmd->ap.local_rates = cpu_to_le32(supported_rates);
700
701 switch (wlvif->band) {
702 case NL80211_BAND_2GHZ:
703 cmd->band = WLCORE_BAND_2_4GHZ;
704 break;
705 case NL80211_BAND_5GHZ:
706 cmd->band = WLCORE_BAND_5GHZ;
707 break;
708 default:
709 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
710 cmd->band = WLCORE_BAND_2_4GHZ;
711 break;
712 }
713
714 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
715 if (ret < 0) {
716 wl1271_error("failed to initiate cmd role start ap");
717 goto out_free_bcast;
718 }
719
720 goto out_free;
721
722 out_free_bcast:
723 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
724
725 out_free_global:
726 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
727
728 out_free:
729 kfree(cmd);
730
731 out:
732 return ret;
733 }
734
wl12xx_cmd_role_stop_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)735 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
736 {
737 struct wl12xx_cmd_role_stop *cmd;
738 int ret;
739
740 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
741 if (!cmd) {
742 ret = -ENOMEM;
743 goto out;
744 }
745
746 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
747
748 cmd->role_id = wlvif->role_id;
749
750 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
751 if (ret < 0) {
752 wl1271_error("failed to initiate cmd role stop ap");
753 goto out_free;
754 }
755
756 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
757 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
758
759 out_free:
760 kfree(cmd);
761
762 out:
763 return ret;
764 }
765
wl12xx_cmd_role_start_ibss(struct wl1271 * wl,struct wl12xx_vif * wlvif)766 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
767 {
768 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
769 struct wl12xx_cmd_role_start *cmd;
770 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
771 int ret;
772
773 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
774 if (!cmd) {
775 ret = -ENOMEM;
776 goto out;
777 }
778
779 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
780
781 cmd->role_id = wlvif->role_id;
782 if (wlvif->band == NL80211_BAND_5GHZ)
783 cmd->band = WLCORE_BAND_5GHZ;
784 cmd->channel = wlvif->channel;
785 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
786 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
787 cmd->ibss.dtim_interval = bss_conf->dtim_period;
788 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
789 cmd->ibss.ssid_len = wlvif->ssid_len;
790 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
791 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
792 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
793
794 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
795 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
796 if (ret)
797 goto out_free;
798 }
799 cmd->ibss.hlid = wlvif->sta.hlid;
800 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
801
802 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
803 "basic_rate_set: 0x%x, remote_rates: 0x%x",
804 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
805 wlvif->basic_rate_set, wlvif->rate_set);
806
807 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
808 vif->bss_conf.bssid);
809
810 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
811 if (ret < 0) {
812 wl1271_error("failed to initiate cmd role enable");
813 goto err_hlid;
814 }
815
816 goto out_free;
817
818 err_hlid:
819 /* clear links on error. */
820 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
821
822 out_free:
823 kfree(cmd);
824
825 out:
826 return ret;
827 }
828
829
830 /**
831 * wl1271_cmd_test - send test command to firmware
832 *
833 * @wl: wl struct
834 * @buf: buffer containing the command, with all headers, must work with dma
835 * @buf_len: length of the buffer
836 * @answer: is answer needed
837 */
wl1271_cmd_test(struct wl1271 * wl,void * buf,size_t buf_len,u8 answer)838 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
839 {
840 int ret;
841 size_t res_len = 0;
842
843 wl1271_debug(DEBUG_CMD, "cmd test");
844
845 if (answer)
846 res_len = buf_len;
847
848 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
849
850 if (ret < 0) {
851 wl1271_warning("TEST command failed");
852 return ret;
853 }
854
855 return ret;
856 }
857 EXPORT_SYMBOL_GPL(wl1271_cmd_test);
858
859 /**
860 * wl1271_cmd_interrogate - read acx from firmware
861 *
862 * @wl: wl struct
863 * @id: acx id
864 * @buf: buffer for the response, including all headers, must work with dma
865 * @cmd_len: length of command
866 * @res_len: length of payload
867 */
wl1271_cmd_interrogate(struct wl1271 * wl,u16 id,void * buf,size_t cmd_len,size_t res_len)868 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
869 size_t cmd_len, size_t res_len)
870 {
871 struct acx_header *acx = buf;
872 int ret;
873
874 wl1271_debug(DEBUG_CMD, "cmd interrogate");
875
876 acx->id = cpu_to_le16(id);
877
878 /* response payload length, does not include any headers */
879 acx->len = cpu_to_le16(res_len - sizeof(*acx));
880
881 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
882 if (ret < 0)
883 wl1271_error("INTERROGATE command failed");
884
885 return ret;
886 }
887
888 /**
889 * wlcore_cmd_configure_failsafe - write acx value to firmware
890 *
891 * @wl: wl struct
892 * @id: acx id
893 * @buf: buffer containing acx, including all headers, must work with dma
894 * @len: length of buf
895 * @valid_rets: bitmap of valid cmd status codes (i.e. return values).
896 * return the cmd status on success.
897 */
wlcore_cmd_configure_failsafe(struct wl1271 * wl,u16 id,void * buf,size_t len,unsigned long valid_rets)898 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
899 size_t len, unsigned long valid_rets)
900 {
901 struct acx_header *acx = buf;
902 int ret;
903
904 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
905
906 if (WARN_ON_ONCE(len < sizeof(*acx)))
907 return -EIO;
908
909 acx->id = cpu_to_le16(id);
910
911 /* payload length, does not include any headers */
912 acx->len = cpu_to_le16(len - sizeof(*acx));
913
914 ret = wlcore_cmd_send_failsafe(wl, CMD_CONFIGURE, acx, len, 0,
915 valid_rets);
916 if (ret < 0) {
917 wl1271_warning("CONFIGURE command NOK");
918 return ret;
919 }
920
921 return ret;
922 }
923
924 /*
925 * wrapper for wlcore_cmd_configure that accepts only success status.
926 * return 0 on success
927 */
wl1271_cmd_configure(struct wl1271 * wl,u16 id,void * buf,size_t len)928 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
929 {
930 int ret = wlcore_cmd_configure_failsafe(wl, id, buf, len, 0);
931
932 if (ret < 0)
933 return ret;
934 return 0;
935 }
936 EXPORT_SYMBOL_GPL(wl1271_cmd_configure);
937
wl1271_cmd_data_path(struct wl1271 * wl,bool enable)938 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
939 {
940 struct cmd_enabledisable_path *cmd;
941 int ret;
942 u16 cmd_rx, cmd_tx;
943
944 wl1271_debug(DEBUG_CMD, "cmd data path");
945
946 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
947 if (!cmd) {
948 ret = -ENOMEM;
949 goto out;
950 }
951
952 /* the channel here is only used for calibration, so hardcoded to 1 */
953 cmd->channel = 1;
954
955 if (enable) {
956 cmd_rx = CMD_ENABLE_RX;
957 cmd_tx = CMD_ENABLE_TX;
958 } else {
959 cmd_rx = CMD_DISABLE_RX;
960 cmd_tx = CMD_DISABLE_TX;
961 }
962
963 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
964 if (ret < 0) {
965 wl1271_error("rx %s cmd for channel %d failed",
966 enable ? "start" : "stop", cmd->channel);
967 goto out;
968 }
969
970 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
971 enable ? "start" : "stop", cmd->channel);
972
973 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
974 if (ret < 0) {
975 wl1271_error("tx %s cmd for channel %d failed",
976 enable ? "start" : "stop", cmd->channel);
977 goto out;
978 }
979
980 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
981 enable ? "start" : "stop", cmd->channel);
982
983 out:
984 kfree(cmd);
985 return ret;
986 }
987 EXPORT_SYMBOL_GPL(wl1271_cmd_data_path);
988
wl1271_cmd_ps_mode(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 ps_mode,u16 auto_ps_timeout)989 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
990 u8 ps_mode, u16 auto_ps_timeout)
991 {
992 struct wl1271_cmd_ps_params *ps_params = NULL;
993 int ret = 0;
994
995 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
996
997 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
998 if (!ps_params) {
999 ret = -ENOMEM;
1000 goto out;
1001 }
1002
1003 ps_params->role_id = wlvif->role_id;
1004 ps_params->ps_mode = ps_mode;
1005 ps_params->auto_ps_timeout = auto_ps_timeout;
1006
1007 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1008 sizeof(*ps_params), 0);
1009 if (ret < 0) {
1010 wl1271_error("cmd set_ps_mode failed");
1011 goto out;
1012 }
1013
1014 out:
1015 kfree(ps_params);
1016 return ret;
1017 }
1018
wl1271_cmd_template_set(struct wl1271 * wl,u8 role_id,u16 template_id,void * buf,size_t buf_len,int index,u32 rates)1019 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1020 u16 template_id, void *buf, size_t buf_len,
1021 int index, u32 rates)
1022 {
1023 struct wl1271_cmd_template_set *cmd;
1024 int ret = 0;
1025
1026 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1027 template_id, role_id);
1028
1029 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1030 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1031
1032 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1033 if (!cmd) {
1034 ret = -ENOMEM;
1035 goto out;
1036 }
1037
1038 /* during initialization wlvif is NULL */
1039 cmd->role_id = role_id;
1040 cmd->len = cpu_to_le16(buf_len);
1041 cmd->template_type = template_id;
1042 cmd->enabled_rates = cpu_to_le32(rates);
1043 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1044 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1045 cmd->index = index;
1046
1047 if (buf)
1048 memcpy(cmd->template_data, buf, buf_len);
1049
1050 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1051 if (ret < 0) {
1052 wl1271_warning("cmd set_template failed: %d", ret);
1053 goto out_free;
1054 }
1055
1056 out_free:
1057 kfree(cmd);
1058
1059 out:
1060 return ret;
1061 }
1062
wl12xx_cmd_build_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1063 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1064 {
1065 struct sk_buff *skb = NULL;
1066 int size;
1067 void *ptr;
1068 int ret = -ENOMEM;
1069
1070
1071 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1072 size = sizeof(struct wl12xx_null_data_template);
1073 ptr = NULL;
1074 } else {
1075 skb = ieee80211_nullfunc_get(wl->hw,
1076 wl12xx_wlvif_to_vif(wlvif),
1077 -1, false);
1078 if (!skb)
1079 goto out;
1080 size = skb->len;
1081 ptr = skb->data;
1082 }
1083
1084 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1085 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1086 wlvif->basic_rate);
1087
1088 out:
1089 dev_kfree_skb(skb);
1090 if (ret)
1091 wl1271_warning("cmd build null data failed %d", ret);
1092
1093 return ret;
1094
1095 }
1096
wl12xx_cmd_build_klv_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1097 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1098 struct wl12xx_vif *wlvif)
1099 {
1100 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1101 struct sk_buff *skb = NULL;
1102 int ret = -ENOMEM;
1103
1104 skb = ieee80211_nullfunc_get(wl->hw, vif,-1, false);
1105 if (!skb)
1106 goto out;
1107
1108 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1109 skb->data, skb->len,
1110 wlvif->sta.klv_template_id,
1111 wlvif->basic_rate);
1112
1113 out:
1114 dev_kfree_skb(skb);
1115 if (ret)
1116 wl1271_warning("cmd build klv null data failed %d", ret);
1117
1118 return ret;
1119
1120 }
1121
wl1271_cmd_build_ps_poll(struct wl1271 * wl,struct wl12xx_vif * wlvif,u16 aid)1122 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1123 u16 aid)
1124 {
1125 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1126 struct sk_buff *skb;
1127 int ret = 0;
1128
1129 skb = ieee80211_pspoll_get(wl->hw, vif);
1130 if (!skb)
1131 goto out;
1132
1133 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1134 CMD_TEMPL_PS_POLL, skb->data,
1135 skb->len, 0, wlvif->basic_rate_set);
1136
1137 out:
1138 dev_kfree_skb(skb);
1139 return ret;
1140 }
1141
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)1142 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1143 u8 role_id, u8 band,
1144 const u8 *ssid, size_t ssid_len,
1145 const u8 *ie0, size_t ie0_len, const u8 *ie1,
1146 size_t ie1_len, bool sched_scan)
1147 {
1148 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1149 struct sk_buff *skb;
1150 int ret;
1151 u32 rate;
1152 u16 template_id_2_4 = wl->scan_templ_id_2_4;
1153 u16 template_id_5 = wl->scan_templ_id_5;
1154
1155 wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
1156
1157 skb = ieee80211_probereq_get(wl->hw, vif->addr, ssid, ssid_len,
1158 ie0_len + ie1_len);
1159 if (!skb) {
1160 ret = -ENOMEM;
1161 goto out;
1162 }
1163 if (ie0_len)
1164 skb_put_data(skb, ie0, ie0_len);
1165 if (ie1_len)
1166 skb_put_data(skb, ie1, ie1_len);
1167
1168 if (sched_scan &&
1169 (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
1170 template_id_2_4 = wl->sched_scan_templ_id_2_4;
1171 template_id_5 = wl->sched_scan_templ_id_5;
1172 }
1173
1174 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1175 if (band == NL80211_BAND_2GHZ)
1176 ret = wl1271_cmd_template_set(wl, role_id,
1177 template_id_2_4,
1178 skb->data, skb->len, 0, rate);
1179 else
1180 ret = wl1271_cmd_template_set(wl, role_id,
1181 template_id_5,
1182 skb->data, skb->len, 0, rate);
1183
1184 out:
1185 dev_kfree_skb(skb);
1186 return ret;
1187 }
1188 EXPORT_SYMBOL_GPL(wl12xx_cmd_build_probe_req);
1189
wl1271_cmd_build_ap_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct sk_buff * skb)1190 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1191 struct wl12xx_vif *wlvif,
1192 struct sk_buff *skb)
1193 {
1194 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1195 int ret;
1196 u32 rate;
1197
1198 if (!skb)
1199 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1200 if (!skb)
1201 goto out;
1202
1203 wl1271_debug(DEBUG_SCAN, "set ap probe request template");
1204
1205 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1206 if (wlvif->band == NL80211_BAND_2GHZ)
1207 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1208 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1209 skb->data, skb->len, 0, rate);
1210 else
1211 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1212 CMD_TEMPL_CFG_PROBE_REQ_5,
1213 skb->data, skb->len, 0, rate);
1214
1215 if (ret < 0)
1216 wl1271_error("Unable to set ap probe request template.");
1217
1218 out:
1219 return skb;
1220 }
1221
wl1271_cmd_build_arp_rsp(struct wl1271 * wl,struct wl12xx_vif * wlvif)1222 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1223 {
1224 int ret, extra = 0;
1225 u16 fc;
1226 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1227 struct sk_buff *skb;
1228 struct wl12xx_arp_rsp_template *tmpl;
1229 struct ieee80211_hdr_3addr *hdr;
1230 struct arphdr *arp_hdr;
1231
1232 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1233 WL1271_EXTRA_SPACE_MAX);
1234 if (!skb) {
1235 wl1271_error("failed to allocate buffer for arp rsp template");
1236 return -ENOMEM;
1237 }
1238
1239 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1240
1241 tmpl = skb_put_zero(skb, sizeof(*tmpl));
1242
1243 /* llc layer */
1244 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1245 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1246
1247 /* arp header */
1248 arp_hdr = &tmpl->arp_hdr;
1249 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1250 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1251 arp_hdr->ar_hln = ETH_ALEN;
1252 arp_hdr->ar_pln = 4;
1253 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1254
1255 /* arp payload */
1256 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1257 tmpl->sender_ip = wlvif->ip_addr;
1258
1259 /* encryption space */
1260 switch (wlvif->encryption_type) {
1261 case KEY_TKIP:
1262 if (wl->quirks & WLCORE_QUIRK_TKIP_HEADER_SPACE)
1263 extra = WL1271_EXTRA_SPACE_TKIP;
1264 break;
1265 case KEY_AES:
1266 extra = WL1271_EXTRA_SPACE_AES;
1267 break;
1268 case KEY_NONE:
1269 case KEY_WEP:
1270 case KEY_GEM:
1271 extra = 0;
1272 break;
1273 default:
1274 wl1271_warning("Unknown encryption type: %d",
1275 wlvif->encryption_type);
1276 ret = -EINVAL;
1277 goto out;
1278 }
1279
1280 if (extra) {
1281 u8 *space = skb_push(skb, extra);
1282 memset(space, 0, extra);
1283 }
1284
1285 /* QoS header - BE */
1286 if (wlvif->sta.qos)
1287 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1288
1289 /* mac80211 header */
1290 hdr = skb_push(skb, sizeof(*hdr));
1291 memset(hdr, 0, sizeof(*hdr));
1292 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1293 if (wlvif->sta.qos)
1294 fc |= IEEE80211_STYPE_QOS_DATA;
1295 else
1296 fc |= IEEE80211_STYPE_DATA;
1297 if (wlvif->encryption_type != KEY_NONE)
1298 fc |= IEEE80211_FCTL_PROTECTED;
1299
1300 hdr->frame_control = cpu_to_le16(fc);
1301 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1302 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1303 eth_broadcast_addr(hdr->addr3);
1304
1305 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1306 skb->data, skb->len, 0,
1307 wlvif->basic_rate);
1308 out:
1309 dev_kfree_skb(skb);
1310 return ret;
1311 }
1312
wl1271_build_qos_null_data(struct wl1271 * wl,struct ieee80211_vif * vif)1313 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1314 {
1315 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1316 struct ieee80211_qos_hdr template;
1317
1318 memset(&template, 0, sizeof(template));
1319
1320 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1321 memcpy(template.addr2, vif->addr, ETH_ALEN);
1322 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1323
1324 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1325 IEEE80211_STYPE_QOS_NULLFUNC |
1326 IEEE80211_FCTL_TODS);
1327
1328 /* FIXME: not sure what priority to use here */
1329 template.qos_ctrl = cpu_to_le16(0);
1330
1331 return wl1271_cmd_template_set(wl, wlvif->role_id,
1332 CMD_TEMPL_QOS_NULL_DATA, &template,
1333 sizeof(template), 0,
1334 wlvif->basic_rate);
1335 }
1336
wl12xx_cmd_set_default_wep_key(struct wl1271 * wl,u8 id,u8 hlid)1337 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1338 {
1339 struct wl1271_cmd_set_keys *cmd;
1340 int ret = 0;
1341
1342 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1343
1344 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1345 if (!cmd) {
1346 ret = -ENOMEM;
1347 goto out;
1348 }
1349
1350 cmd->hlid = hlid;
1351 cmd->key_id = id;
1352 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1353 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1354 cmd->key_type = KEY_WEP;
1355
1356 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1357 if (ret < 0) {
1358 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1359 goto out;
1360 }
1361
1362 out:
1363 kfree(cmd);
1364
1365 return ret;
1366 }
1367
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)1368 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1369 u16 action, u8 id, u8 key_type,
1370 u8 key_size, const u8 *key, const u8 *addr,
1371 u32 tx_seq_32, u16 tx_seq_16)
1372 {
1373 struct wl1271_cmd_set_keys *cmd;
1374 int ret = 0;
1375
1376 /* hlid might have already been deleted */
1377 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1378 return 0;
1379
1380 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1381 if (!cmd) {
1382 ret = -ENOMEM;
1383 goto out;
1384 }
1385
1386 cmd->hlid = wlvif->sta.hlid;
1387
1388 if (key_type == KEY_WEP)
1389 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1390 else if (is_broadcast_ether_addr(addr))
1391 cmd->lid_key_type = BROADCAST_LID_TYPE;
1392 else
1393 cmd->lid_key_type = UNICAST_LID_TYPE;
1394
1395 cmd->key_action = cpu_to_le16(action);
1396 cmd->key_size = key_size;
1397 cmd->key_type = key_type;
1398
1399 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1400 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1401
1402 cmd->key_id = id;
1403
1404 if (key_type == KEY_TKIP) {
1405 /*
1406 * We get the key in the following form:
1407 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1408 * but the target is expecting:
1409 * TKIP - RX MIC - TX MIC
1410 */
1411 memcpy(cmd->key, key, 16);
1412 memcpy(cmd->key + 16, key + 24, 8);
1413 memcpy(cmd->key + 24, key + 16, 8);
1414
1415 } else {
1416 memcpy(cmd->key, key, key_size);
1417 }
1418
1419 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1420
1421 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1422 if (ret < 0) {
1423 wl1271_warning("could not set keys");
1424 goto out;
1425 }
1426
1427 out:
1428 kfree(cmd);
1429
1430 return ret;
1431 }
1432
1433 /*
1434 * TODO: merge with sta/ibss into 1 set_key function.
1435 * note there are slight diffs
1436 */
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)1437 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1438 u16 action, u8 id, u8 key_type,
1439 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1440 u16 tx_seq_16, bool is_pairwise)
1441 {
1442 struct wl1271_cmd_set_keys *cmd;
1443 int ret = 0;
1444 u8 lid_type;
1445
1446 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1447 if (!cmd)
1448 return -ENOMEM;
1449
1450 if (hlid == wlvif->ap.bcast_hlid) {
1451 if (key_type == KEY_WEP)
1452 lid_type = WEP_DEFAULT_LID_TYPE;
1453 else
1454 lid_type = BROADCAST_LID_TYPE;
1455 } else if (is_pairwise) {
1456 lid_type = UNICAST_LID_TYPE;
1457 } else {
1458 lid_type = BROADCAST_LID_TYPE;
1459 }
1460
1461 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1462 " hlid: %d", (int)action, (int)id, (int)lid_type,
1463 (int)key_type, (int)hlid);
1464
1465 cmd->lid_key_type = lid_type;
1466 cmd->hlid = hlid;
1467 cmd->key_action = cpu_to_le16(action);
1468 cmd->key_size = key_size;
1469 cmd->key_type = key_type;
1470 cmd->key_id = id;
1471 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1472 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1473
1474 if (key_type == KEY_TKIP) {
1475 /*
1476 * We get the key in the following form:
1477 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1478 * but the target is expecting:
1479 * TKIP - RX MIC - TX MIC
1480 */
1481 memcpy(cmd->key, key, 16);
1482 memcpy(cmd->key + 16, key + 24, 8);
1483 memcpy(cmd->key + 24, key + 16, 8);
1484 } else {
1485 memcpy(cmd->key, key, key_size);
1486 }
1487
1488 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1489
1490 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1491 if (ret < 0) {
1492 wl1271_warning("could not set ap keys");
1493 goto out;
1494 }
1495
1496 out:
1497 kfree(cmd);
1498 return ret;
1499 }
1500
wl12xx_cmd_set_peer_state(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 hlid)1501 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1502 u8 hlid)
1503 {
1504 struct wl12xx_cmd_set_peer_state *cmd;
1505 int ret = 0;
1506
1507 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1508
1509 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1510 if (!cmd) {
1511 ret = -ENOMEM;
1512 goto out;
1513 }
1514
1515 cmd->hlid = hlid;
1516 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1517
1518 /* wmm param is valid only for station role */
1519 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
1520 cmd->wmm = wlvif->wmm_enabled;
1521
1522 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1523 if (ret < 0) {
1524 wl1271_error("failed to send set peer state command");
1525 goto out_free;
1526 }
1527
1528 out_free:
1529 kfree(cmd);
1530
1531 out:
1532 return ret;
1533 }
1534
wl12xx_cmd_add_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct ieee80211_sta * sta,u8 hlid)1535 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1536 struct ieee80211_sta *sta, u8 hlid)
1537 {
1538 struct wl12xx_cmd_add_peer *cmd;
1539 int i, ret;
1540 u32 sta_rates;
1541
1542 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1543
1544 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1545 if (!cmd) {
1546 ret = -ENOMEM;
1547 goto out;
1548 }
1549
1550 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1551 cmd->bss_index = WL1271_AP_BSS_INDEX;
1552 cmd->aid = sta->aid;
1553 cmd->hlid = hlid;
1554 cmd->sp_len = sta->max_sp;
1555 cmd->wmm = sta->wme ? 1 : 0;
1556 cmd->session_id = wl->session_ids[hlid];
1557 cmd->role_id = wlvif->role_id;
1558
1559 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1560 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1561 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1562 WL1271_PSD_UPSD_TRIGGER;
1563 else
1564 cmd->psd_type[NUM_ACCESS_CATEGORIES_COPY-1-i] =
1565 WL1271_PSD_LEGACY;
1566
1567
1568 sta_rates = sta->deflink.supp_rates[wlvif->band];
1569 if (sta->deflink.ht_cap.ht_supported)
1570 sta_rates |=
1571 (sta->deflink.ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET) |
1572 (sta->deflink.ht_cap.mcs.rx_mask[1] << HW_MIMO_RATES_OFFSET);
1573
1574 cmd->supported_rates =
1575 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1576 wlvif->band));
1577
1578 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1579 cmd->supported_rates, sta->uapsd_queues);
1580
1581 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1582 if (ret < 0) {
1583 wl1271_error("failed to initiate cmd add peer");
1584 goto out_free;
1585 }
1586
1587 out_free:
1588 kfree(cmd);
1589
1590 out:
1591 return ret;
1592 }
1593
wl12xx_cmd_remove_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 hlid)1594 int wl12xx_cmd_remove_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1595 u8 hlid)
1596 {
1597 struct wl12xx_cmd_remove_peer *cmd;
1598 int ret;
1599 bool timeout = false;
1600
1601 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1602
1603 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1604 if (!cmd) {
1605 ret = -ENOMEM;
1606 goto out;
1607 }
1608
1609 cmd->hlid = hlid;
1610 /* We never send a deauth, mac80211 is in charge of this */
1611 cmd->reason_opcode = 0;
1612 cmd->send_deauth_flag = 0;
1613 cmd->role_id = wlvif->role_id;
1614
1615 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1616 if (ret < 0) {
1617 wl1271_error("failed to initiate cmd remove peer");
1618 goto out_free;
1619 }
1620
1621 ret = wl->ops->wait_for_event(wl,
1622 WLCORE_EVENT_PEER_REMOVE_COMPLETE,
1623 &timeout);
1624
1625 /*
1626 * We are ok with a timeout here. The event is sometimes not sent
1627 * due to a firmware bug. In case of another error (like SDIO timeout)
1628 * queue a recovery.
1629 */
1630 if (ret)
1631 wl12xx_queue_recovery_work(wl);
1632
1633 out_free:
1634 kfree(cmd);
1635
1636 out:
1637 return ret;
1638 }
1639
wlcore_get_reg_conf_ch_idx(enum nl80211_band band,u16 ch)1640 static int wlcore_get_reg_conf_ch_idx(enum nl80211_band band, u16 ch)
1641 {
1642 /*
1643 * map the given band/channel to the respective predefined
1644 * bit expected by the fw
1645 */
1646 switch (band) {
1647 case NL80211_BAND_2GHZ:
1648 /* channels 1..14 are mapped to 0..13 */
1649 if (ch >= 1 && ch <= 14)
1650 return ch - 1;
1651 break;
1652 case NL80211_BAND_5GHZ:
1653 switch (ch) {
1654 case 8 ... 16:
1655 /* channels 8,12,16 are mapped to 18,19,20 */
1656 return 18 + (ch-8)/4;
1657 case 34 ... 48:
1658 /* channels 34,36..48 are mapped to 21..28 */
1659 return 21 + (ch-34)/2;
1660 case 52 ... 64:
1661 /* channels 52,56..64 are mapped to 29..32 */
1662 return 29 + (ch-52)/4;
1663 case 100 ... 140:
1664 /* channels 100,104..140 are mapped to 33..43 */
1665 return 33 + (ch-100)/4;
1666 case 149 ... 165:
1667 /* channels 149,153..165 are mapped to 44..48 */
1668 return 44 + (ch-149)/4;
1669 default:
1670 break;
1671 }
1672 break;
1673 default:
1674 break;
1675 }
1676
1677 wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
1678 return -1;
1679 }
1680
wlcore_set_pending_regdomain_ch(struct wl1271 * wl,u16 channel,enum nl80211_band band)1681 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
1682 enum nl80211_band band)
1683 {
1684 int ch_bit_idx = 0;
1685
1686 if (!(wl->quirks & WLCORE_QUIRK_REGDOMAIN_CONF))
1687 return;
1688
1689 ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
1690
1691 if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
1692 __set_bit_le(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
1693 }
1694
wlcore_cmd_regdomain_config_locked(struct wl1271 * wl)1695 int wlcore_cmd_regdomain_config_locked(struct wl1271 *wl)
1696 {
1697 struct wl12xx_cmd_regdomain_dfs_config *cmd = NULL;
1698 int ret = 0, i, b, ch_bit_idx;
1699 __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
1770 out:
1771 kfree(cmd);
1772 return ret;
1773 }
1774
wl12xx_cmd_config_fwlog(struct wl1271 * wl)1775 int 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
1800 out_free:
1801 kfree(cmd);
1802
1803 out:
1804 return ret;
1805 }
1806
wl12xx_cmd_start_fwlog(struct wl1271 * wl)1807 int 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
1826 out_free:
1827 kfree(cmd);
1828
1829 out:
1830 return ret;
1831 }
1832
wl12xx_cmd_stop_fwlog(struct wl1271 * wl)1833 int 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
1852 out_free:
1853 kfree(cmd);
1854
1855 out:
1856 return ret;
1857 }
1858
wl12xx_cmd_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id,enum nl80211_band band,u8 channel)1859 static 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
1898 out_free:
1899 kfree(cmd);
1900
1901 out:
1902 return ret;
1903 }
1904
wl12xx_cmd_croc(struct wl1271 * wl,u8 role_id)1905 static 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
1926 out_free:
1927 kfree(cmd);
1928
1929 out:
1930 return ret;
1931 }
1932
wl12xx_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id,enum nl80211_band band,u8 channel)1933 int 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);
1946 out:
1947 return ret;
1948 }
1949
wl12xx_croc(struct wl1271 * wl,u8 role_id)1950 int 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 * Rearm the tx watchdog when removing the last ROC. This prevents
1965 * recoveries due to just finished ROCs - when Tx hasn't yet had
1966 * a chance to get out.
1967 */
1968 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1969 wl12xx_rearm_tx_watchdog_locked(wl);
1970 out:
1971 return ret;
1972 }
1973
wl12xx_cmd_stop_channel_switch(struct wl1271 * wl,struct wl12xx_vif * wlvif)1974 int 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
1995 out_free:
1996 kfree(cmd);
1997
1998 out:
1999 return ret;
2000 }
2001
2002 /* start dev role and roc on its channel */
wl12xx_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif,enum nl80211_band band,int channel)2003 int 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 /* the dev role is already started for p2p mgmt interfaces */
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
2032 out_stop:
2033 wl12xx_cmd_role_stop_dev(wl, wlvif);
2034 out_disable:
2035 if (!wlcore_is_p2p_mgmt(wlvif))
2036 wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
2037 out:
2038 return ret;
2039 }
2040
2041 /* croc dev hlid, and stop the role */
wl12xx_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)2042 int 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 /* flush all pending packets */
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
2071 out:
2072 return ret;
2073 }
2074
wlcore_cmd_generic_cfg(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 feature,u8 enable,u8 value)2075 int 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 }
2099 out_free:
2100 kfree(cmd);
2101 return ret;
2102 }
2103 EXPORT_SYMBOL_GPL(wlcore_cmd_generic_cfg);
2104