1 /*
2 * This file is part of wl1271
3 *
4 * Copyright (C) 2009-2010 Nokia Corporation
5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24 #include <linux/module.h>
25 #include <linux/platform_device.h>
26 #include <linux/spi/spi.h>
27 #include <linux/etherdevice.h>
28 #include <linux/ieee80211.h>
29 #include <linux/slab.h>
30
31 #include "wl12xx.h"
32 #include "debug.h"
33 #include "reg.h"
34 #include "io.h"
35 #include "acx.h"
36 #include "wl12xx_80211.h"
37 #include "cmd.h"
38 #include "event.h"
39 #include "tx.h"
40
41 #define WL1271_CMD_FAST_POLL_COUNT 50
42
43 /*
44 * send command to firmware
45 *
46 * @wl: wl struct
47 * @id: command id
48 * @buf: buffer containing the command, must work with dma
49 * @len: length of the buffer
50 */
wl1271_cmd_send(struct wl1271 * wl,u16 id,void * buf,size_t len,size_t res_len)51 int wl1271_cmd_send(struct wl1271 *wl, u16 id, void *buf, size_t len,
52 size_t res_len)
53 {
54 struct wl1271_cmd_header *cmd;
55 unsigned long timeout;
56 u32 intr;
57 int ret = 0;
58 u16 status;
59 u16 poll_count = 0;
60
61 cmd = buf;
62 cmd->id = cpu_to_le16(id);
63 cmd->status = 0;
64
65 WARN_ON(len % 4 != 0);
66 WARN_ON(test_bit(WL1271_FLAG_IN_ELP, &wl->flags));
67
68 wl1271_write(wl, wl->cmd_box_addr, buf, len, false);
69
70 wl1271_write32(wl, ACX_REG_INTERRUPT_TRIG, INTR_TRIG_CMD);
71
72 timeout = jiffies + msecs_to_jiffies(WL1271_COMMAND_TIMEOUT);
73
74 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
75 while (!(intr & WL1271_ACX_INTR_CMD_COMPLETE)) {
76 if (time_after(jiffies, timeout)) {
77 wl1271_error("command complete timeout");
78 ret = -ETIMEDOUT;
79 goto fail;
80 }
81
82 poll_count++;
83 if (poll_count < WL1271_CMD_FAST_POLL_COUNT)
84 udelay(10);
85 else
86 msleep(1);
87
88 intr = wl1271_read32(wl, ACX_REG_INTERRUPT_NO_CLEAR);
89 }
90
91 /* read back the status code of the command */
92 if (res_len == 0)
93 res_len = sizeof(struct wl1271_cmd_header);
94 wl1271_read(wl, wl->cmd_box_addr, cmd, res_len, false);
95
96 status = le16_to_cpu(cmd->status);
97 if (status != CMD_STATUS_SUCCESS) {
98 wl1271_error("command execute failure %d", status);
99 ret = -EIO;
100 goto fail;
101 }
102
103 wl1271_write32(wl, ACX_REG_INTERRUPT_ACK,
104 WL1271_ACX_INTR_CMD_COMPLETE);
105 return 0;
106
107 fail:
108 WARN_ON(1);
109 wl12xx_queue_recovery_work(wl);
110 return ret;
111 }
112
wl1271_cmd_general_parms(struct wl1271 * wl)113 int wl1271_cmd_general_parms(struct wl1271 *wl)
114 {
115 struct wl1271_general_parms_cmd *gen_parms;
116 struct wl1271_ini_general_params *gp =
117 &((struct wl1271_nvs_file *)wl->nvs)->general_params;
118 bool answer = false;
119 int ret;
120
121 if (!wl->nvs)
122 return -ENODEV;
123
124 if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
125 wl1271_warning("FEM index from INI out of bounds");
126 return -EINVAL;
127 }
128
129 gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
130 if (!gen_parms)
131 return -ENOMEM;
132
133 gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
134
135 memcpy(&gen_parms->general_params, gp, sizeof(*gp));
136
137 if (gp->tx_bip_fem_auto_detect)
138 answer = true;
139
140 /* Override the REF CLK from the NVS with the one from platform data */
141 gen_parms->general_params.ref_clock = wl->ref_clock;
142
143 ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
144 if (ret < 0) {
145 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
146 goto out;
147 }
148
149 gp->tx_bip_fem_manufacturer =
150 gen_parms->general_params.tx_bip_fem_manufacturer;
151
152 if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
153 wl1271_warning("FEM index from FW out of bounds");
154 ret = -EINVAL;
155 goto out;
156 }
157
158 wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
159 answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
160
161 out:
162 kfree(gen_parms);
163 return ret;
164 }
165
wl128x_cmd_general_parms(struct wl1271 * wl)166 int wl128x_cmd_general_parms(struct wl1271 *wl)
167 {
168 struct wl128x_general_parms_cmd *gen_parms;
169 struct wl128x_ini_general_params *gp =
170 &((struct wl128x_nvs_file *)wl->nvs)->general_params;
171 bool answer = false;
172 int ret;
173
174 if (!wl->nvs)
175 return -ENODEV;
176
177 if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
178 wl1271_warning("FEM index from ini out of bounds");
179 return -EINVAL;
180 }
181
182 gen_parms = kzalloc(sizeof(*gen_parms), GFP_KERNEL);
183 if (!gen_parms)
184 return -ENOMEM;
185
186 gen_parms->test.id = TEST_CMD_INI_FILE_GENERAL_PARAM;
187
188 memcpy(&gen_parms->general_params, gp, sizeof(*gp));
189
190 if (gp->tx_bip_fem_auto_detect)
191 answer = true;
192
193 /* Replace REF and TCXO CLKs with the ones from platform data */
194 gen_parms->general_params.ref_clock = wl->ref_clock;
195 gen_parms->general_params.tcxo_ref_clock = wl->tcxo_clock;
196
197 ret = wl1271_cmd_test(wl, gen_parms, sizeof(*gen_parms), answer);
198 if (ret < 0) {
199 wl1271_warning("CMD_INI_FILE_GENERAL_PARAM failed");
200 goto out;
201 }
202
203 gp->tx_bip_fem_manufacturer =
204 gen_parms->general_params.tx_bip_fem_manufacturer;
205
206 if (gp->tx_bip_fem_manufacturer >= WL1271_INI_FEM_MODULE_COUNT) {
207 wl1271_warning("FEM index from FW out of bounds");
208 ret = -EINVAL;
209 goto out;
210 }
211
212 wl1271_debug(DEBUG_CMD, "FEM autodetect: %s, manufacturer: %d\n",
213 answer ? "auto" : "manual", gp->tx_bip_fem_manufacturer);
214
215 out:
216 kfree(gen_parms);
217 return ret;
218 }
219
wl1271_cmd_radio_parms(struct wl1271 * wl)220 int wl1271_cmd_radio_parms(struct wl1271 *wl)
221 {
222 struct wl1271_nvs_file *nvs = (struct wl1271_nvs_file *)wl->nvs;
223 struct wl1271_radio_parms_cmd *radio_parms;
224 struct wl1271_ini_general_params *gp = &nvs->general_params;
225 int ret;
226
227 if (!wl->nvs)
228 return -ENODEV;
229
230 radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
231 if (!radio_parms)
232 return -ENOMEM;
233
234 radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
235
236 /* 2.4GHz parameters */
237 memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
238 sizeof(struct wl1271_ini_band_params_2));
239 memcpy(&radio_parms->dyn_params_2,
240 &nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
241 sizeof(struct wl1271_ini_fem_params_2));
242
243 /* 5GHz parameters */
244 memcpy(&radio_parms->static_params_5,
245 &nvs->stat_radio_params_5,
246 sizeof(struct wl1271_ini_band_params_5));
247 memcpy(&radio_parms->dyn_params_5,
248 &nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
249 sizeof(struct wl1271_ini_fem_params_5));
250
251 wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
252 radio_parms, sizeof(*radio_parms));
253
254 ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
255 if (ret < 0)
256 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
257
258 kfree(radio_parms);
259 return ret;
260 }
261
wl128x_cmd_radio_parms(struct wl1271 * wl)262 int wl128x_cmd_radio_parms(struct wl1271 *wl)
263 {
264 struct wl128x_nvs_file *nvs = (struct wl128x_nvs_file *)wl->nvs;
265 struct wl128x_radio_parms_cmd *radio_parms;
266 struct wl128x_ini_general_params *gp = &nvs->general_params;
267 int ret;
268
269 if (!wl->nvs)
270 return -ENODEV;
271
272 radio_parms = kzalloc(sizeof(*radio_parms), GFP_KERNEL);
273 if (!radio_parms)
274 return -ENOMEM;
275
276 radio_parms->test.id = TEST_CMD_INI_FILE_RADIO_PARAM;
277
278 /* 2.4GHz parameters */
279 memcpy(&radio_parms->static_params_2, &nvs->stat_radio_params_2,
280 sizeof(struct wl128x_ini_band_params_2));
281 memcpy(&radio_parms->dyn_params_2,
282 &nvs->dyn_radio_params_2[gp->tx_bip_fem_manufacturer].params,
283 sizeof(struct wl128x_ini_fem_params_2));
284
285 /* 5GHz parameters */
286 memcpy(&radio_parms->static_params_5,
287 &nvs->stat_radio_params_5,
288 sizeof(struct wl128x_ini_band_params_5));
289 memcpy(&radio_parms->dyn_params_5,
290 &nvs->dyn_radio_params_5[gp->tx_bip_fem_manufacturer].params,
291 sizeof(struct wl128x_ini_fem_params_5));
292
293 radio_parms->fem_vendor_and_options = nvs->fem_vendor_and_options;
294
295 wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_RADIO_PARAM: ",
296 radio_parms, sizeof(*radio_parms));
297
298 ret = wl1271_cmd_test(wl, radio_parms, sizeof(*radio_parms), 0);
299 if (ret < 0)
300 wl1271_warning("CMD_INI_FILE_RADIO_PARAM failed");
301
302 kfree(radio_parms);
303 return ret;
304 }
305
wl1271_cmd_ext_radio_parms(struct wl1271 * wl)306 int wl1271_cmd_ext_radio_parms(struct wl1271 *wl)
307 {
308 struct wl1271_ext_radio_parms_cmd *ext_radio_parms;
309 struct conf_rf_settings *rf = &wl->conf.rf;
310 int ret;
311
312 if (!wl->nvs)
313 return -ENODEV;
314
315 ext_radio_parms = kzalloc(sizeof(*ext_radio_parms), GFP_KERNEL);
316 if (!ext_radio_parms)
317 return -ENOMEM;
318
319 ext_radio_parms->test.id = TEST_CMD_INI_FILE_RF_EXTENDED_PARAM;
320
321 memcpy(ext_radio_parms->tx_per_channel_power_compensation_2,
322 rf->tx_per_channel_power_compensation_2,
323 CONF_TX_PWR_COMPENSATION_LEN_2);
324 memcpy(ext_radio_parms->tx_per_channel_power_compensation_5,
325 rf->tx_per_channel_power_compensation_5,
326 CONF_TX_PWR_COMPENSATION_LEN_5);
327
328 wl1271_dump(DEBUG_CMD, "TEST_CMD_INI_FILE_EXT_RADIO_PARAM: ",
329 ext_radio_parms, sizeof(*ext_radio_parms));
330
331 ret = wl1271_cmd_test(wl, ext_radio_parms, sizeof(*ext_radio_parms), 0);
332 if (ret < 0)
333 wl1271_warning("TEST_CMD_INI_FILE_RF_EXTENDED_PARAM failed");
334
335 kfree(ext_radio_parms);
336 return ret;
337 }
338
339 /*
340 * Poll the mailbox event field until any of the bits in the mask is set or a
341 * timeout occurs (WL1271_EVENT_TIMEOUT in msecs)
342 */
wl1271_cmd_wait_for_event_or_timeout(struct wl1271 * wl,u32 mask)343 static int wl1271_cmd_wait_for_event_or_timeout(struct wl1271 *wl, u32 mask)
344 {
345 u32 events_vector, event;
346 unsigned long timeout;
347
348 timeout = jiffies + msecs_to_jiffies(WL1271_EVENT_TIMEOUT);
349
350 do {
351 if (time_after(jiffies, timeout)) {
352 wl1271_debug(DEBUG_CMD, "timeout waiting for event %d",
353 (int)mask);
354 return -ETIMEDOUT;
355 }
356
357 msleep(1);
358
359 /* read from both event fields */
360 wl1271_read(wl, wl->mbox_ptr[0], &events_vector,
361 sizeof(events_vector), false);
362 event = events_vector & mask;
363 wl1271_read(wl, wl->mbox_ptr[1], &events_vector,
364 sizeof(events_vector), false);
365 event |= events_vector & mask;
366 } while (!event);
367
368 return 0;
369 }
370
wl1271_cmd_wait_for_event(struct wl1271 * wl,u32 mask)371 static int wl1271_cmd_wait_for_event(struct wl1271 *wl, u32 mask)
372 {
373 int ret;
374
375 ret = wl1271_cmd_wait_for_event_or_timeout(wl, mask);
376 if (ret != 0) {
377 wl12xx_queue_recovery_work(wl);
378 return ret;
379 }
380
381 return 0;
382 }
383
wl12xx_cmd_role_enable(struct wl1271 * wl,u8 * addr,u8 role_type,u8 * role_id)384 int wl12xx_cmd_role_enable(struct wl1271 *wl, u8 *addr, u8 role_type,
385 u8 *role_id)
386 {
387 struct wl12xx_cmd_role_enable *cmd;
388 int ret;
389
390 wl1271_debug(DEBUG_CMD, "cmd role enable");
391
392 if (WARN_ON(*role_id != WL12XX_INVALID_ROLE_ID))
393 return -EBUSY;
394
395 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
396 if (!cmd) {
397 ret = -ENOMEM;
398 goto out;
399 }
400
401 /* get role id */
402 cmd->role_id = find_first_zero_bit(wl->roles_map, WL12XX_MAX_ROLES);
403 if (cmd->role_id >= WL12XX_MAX_ROLES) {
404 ret = -EBUSY;
405 goto out_free;
406 }
407
408 memcpy(cmd->mac_address, addr, ETH_ALEN);
409 cmd->role_type = role_type;
410
411 ret = wl1271_cmd_send(wl, CMD_ROLE_ENABLE, cmd, sizeof(*cmd), 0);
412 if (ret < 0) {
413 wl1271_error("failed to initiate cmd role enable");
414 goto out_free;
415 }
416
417 __set_bit(cmd->role_id, wl->roles_map);
418 *role_id = cmd->role_id;
419
420 out_free:
421 kfree(cmd);
422
423 out:
424 return ret;
425 }
426
wl12xx_cmd_role_disable(struct wl1271 * wl,u8 * role_id)427 int wl12xx_cmd_role_disable(struct wl1271 *wl, u8 *role_id)
428 {
429 struct wl12xx_cmd_role_disable *cmd;
430 int ret;
431
432 wl1271_debug(DEBUG_CMD, "cmd role disable");
433
434 if (WARN_ON(*role_id == WL12XX_INVALID_ROLE_ID))
435 return -ENOENT;
436
437 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
438 if (!cmd) {
439 ret = -ENOMEM;
440 goto out;
441 }
442 cmd->role_id = *role_id;
443
444 ret = wl1271_cmd_send(wl, CMD_ROLE_DISABLE, cmd, sizeof(*cmd), 0);
445 if (ret < 0) {
446 wl1271_error("failed to initiate cmd role disable");
447 goto out_free;
448 }
449
450 __clear_bit(*role_id, wl->roles_map);
451 *role_id = WL12XX_INVALID_ROLE_ID;
452
453 out_free:
454 kfree(cmd);
455
456 out:
457 return ret;
458 }
459
wl12xx_allocate_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)460 int wl12xx_allocate_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
461 {
462 unsigned long flags;
463 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
464 if (link >= WL12XX_MAX_LINKS)
465 return -EBUSY;
466
467 /* these bits are used by op_tx */
468 spin_lock_irqsave(&wl->wl_lock, flags);
469 __set_bit(link, wl->links_map);
470 __set_bit(link, wlvif->links_map);
471 spin_unlock_irqrestore(&wl->wl_lock, flags);
472 *hlid = link;
473 return 0;
474 }
475
wl12xx_free_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)476 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
477 {
478 unsigned long flags;
479
480 if (*hlid == WL12XX_INVALID_LINK_ID)
481 return;
482
483 /* these bits are used by op_tx */
484 spin_lock_irqsave(&wl->wl_lock, flags);
485 __clear_bit(*hlid, wl->links_map);
486 __clear_bit(*hlid, wlvif->links_map);
487 spin_unlock_irqrestore(&wl->wl_lock, flags);
488
489 /*
490 * At this point op_tx() will not add more packets to the queues. We
491 * can purge them.
492 */
493 wl1271_tx_reset_link_queues(wl, *hlid);
494
495 *hlid = WL12XX_INVALID_LINK_ID;
496 }
497
wl12xx_get_new_session_id(struct wl1271 * wl,struct wl12xx_vif * wlvif)498 static int wl12xx_get_new_session_id(struct wl1271 *wl,
499 struct wl12xx_vif *wlvif)
500 {
501 if (wlvif->session_counter >= SESSION_COUNTER_MAX)
502 wlvif->session_counter = 0;
503
504 wlvif->session_counter++;
505
506 return wlvif->session_counter;
507 }
508
wl12xx_cmd_role_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)509 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
510 struct wl12xx_vif *wlvif)
511 {
512 struct wl12xx_cmd_role_start *cmd;
513 int ret;
514
515 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
516 if (!cmd) {
517 ret = -ENOMEM;
518 goto out;
519 }
520
521 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
522
523 cmd->role_id = wlvif->dev_role_id;
524 if (wlvif->band == IEEE80211_BAND_5GHZ)
525 cmd->band = WL12XX_BAND_5GHZ;
526 cmd->channel = wlvif->channel;
527
528 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
529 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
530 if (ret)
531 goto out_free;
532 }
533 cmd->device.hlid = wlvif->dev_hlid;
534 cmd->device.session = wl12xx_get_new_session_id(wl, wlvif);
535
536 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
537 cmd->role_id, cmd->device.hlid, cmd->device.session);
538
539 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
540 if (ret < 0) {
541 wl1271_error("failed to initiate cmd role enable");
542 goto err_hlid;
543 }
544
545 goto out_free;
546
547 err_hlid:
548 /* clear links on error */
549 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
550
551 out_free:
552 kfree(cmd);
553
554 out:
555 return ret;
556 }
557
wl12xx_cmd_role_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)558 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
559 struct wl12xx_vif *wlvif)
560 {
561 struct wl12xx_cmd_role_stop *cmd;
562 int ret;
563
564 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
565 return -EINVAL;
566
567 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
568 if (!cmd) {
569 ret = -ENOMEM;
570 goto out;
571 }
572
573 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
574
575 cmd->role_id = wlvif->dev_role_id;
576 cmd->disc_type = DISCONNECT_IMMEDIATE;
577 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
578
579 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
580 if (ret < 0) {
581 wl1271_error("failed to initiate cmd role stop");
582 goto out_free;
583 }
584
585 ret = wl1271_cmd_wait_for_event(wl, ROLE_STOP_COMPLETE_EVENT_ID);
586 if (ret < 0) {
587 wl1271_error("cmd role stop dev event completion error");
588 goto out_free;
589 }
590
591 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
592
593 out_free:
594 kfree(cmd);
595
596 out:
597 return ret;
598 }
599
wl12xx_cmd_role_start_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)600 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
601 {
602 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
603 struct wl12xx_cmd_role_start *cmd;
604 int ret;
605
606 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
607 if (!cmd) {
608 ret = -ENOMEM;
609 goto out;
610 }
611
612 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
613
614 cmd->role_id = wlvif->role_id;
615 if (wlvif->band == IEEE80211_BAND_5GHZ)
616 cmd->band = WL12XX_BAND_5GHZ;
617 cmd->channel = wlvif->channel;
618 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
619 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
620 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
621 cmd->sta.ssid_len = wlvif->ssid_len;
622 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
623 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
624 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
625
626 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
627 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
628 if (ret)
629 goto out_free;
630 }
631 cmd->sta.hlid = wlvif->sta.hlid;
632 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
633 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set);
634
635 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
636 "basic_rate_set: 0x%x, remote_rates: 0x%x",
637 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
638 wlvif->basic_rate_set, wlvif->rate_set);
639
640 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
641 if (ret < 0) {
642 wl1271_error("failed to initiate cmd role start sta");
643 goto err_hlid;
644 }
645
646 goto out_free;
647
648 err_hlid:
649 /* clear links on error. */
650 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
651
652 out_free:
653 kfree(cmd);
654
655 out:
656 return ret;
657 }
658
659 /* use this function to stop ibss as well */
wl12xx_cmd_role_stop_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)660 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
661 {
662 struct wl12xx_cmd_role_stop *cmd;
663 int ret;
664
665 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
666 return -EINVAL;
667
668 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
669 if (!cmd) {
670 ret = -ENOMEM;
671 goto out;
672 }
673
674 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
675
676 cmd->role_id = wlvif->role_id;
677 cmd->disc_type = DISCONNECT_IMMEDIATE;
678 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
679
680 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
681 if (ret < 0) {
682 wl1271_error("failed to initiate cmd role stop sta");
683 goto out_free;
684 }
685
686 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
687
688 out_free:
689 kfree(cmd);
690
691 out:
692 return ret;
693 }
694
wl12xx_cmd_role_start_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)695 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
696 {
697 struct wl12xx_cmd_role_start *cmd;
698 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
699 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
700 int ret;
701
702 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
703
704 /* trying to use hidden SSID with an old hostapd version */
705 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
706 wl1271_error("got a null SSID from beacon/bss");
707 ret = -EINVAL;
708 goto out;
709 }
710
711 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
712 if (!cmd) {
713 ret = -ENOMEM;
714 goto out;
715 }
716
717 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
718 if (ret < 0)
719 goto out_free;
720
721 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
722 if (ret < 0)
723 goto out_free_global;
724
725 cmd->role_id = wlvif->role_id;
726 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
727 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
728 cmd->ap.global_hlid = wlvif->ap.global_hlid;
729 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
730 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
731 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
732 cmd->ap.dtim_interval = bss_conf->dtim_period;
733 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
734 /* FIXME: Change when adding DFS */
735 cmd->ap.reset_tsf = 1; /* By default reset AP TSF */
736 cmd->channel = wlvif->channel;
737
738 if (!bss_conf->hidden_ssid) {
739 /* take the SSID from the beacon for backward compatibility */
740 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
741 cmd->ap.ssid_len = wlvif->ssid_len;
742 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
743 } else {
744 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
745 cmd->ap.ssid_len = bss_conf->ssid_len;
746 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
747 }
748
749 cmd->ap.local_rates = cpu_to_le32(0xffffffff);
750
751 switch (wlvif->band) {
752 case IEEE80211_BAND_2GHZ:
753 cmd->band = RADIO_BAND_2_4GHZ;
754 break;
755 case IEEE80211_BAND_5GHZ:
756 cmd->band = RADIO_BAND_5GHZ;
757 break;
758 default:
759 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
760 cmd->band = RADIO_BAND_2_4GHZ;
761 break;
762 }
763
764 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
765 if (ret < 0) {
766 wl1271_error("failed to initiate cmd role start ap");
767 goto out_free_bcast;
768 }
769
770 goto out_free;
771
772 out_free_bcast:
773 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
774
775 out_free_global:
776 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
777
778 out_free:
779 kfree(cmd);
780
781 out:
782 return ret;
783 }
784
wl12xx_cmd_role_stop_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)785 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
786 {
787 struct wl12xx_cmd_role_stop *cmd;
788 int ret;
789
790 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
791 if (!cmd) {
792 ret = -ENOMEM;
793 goto out;
794 }
795
796 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
797
798 cmd->role_id = wlvif->role_id;
799
800 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
801 if (ret < 0) {
802 wl1271_error("failed to initiate cmd role stop ap");
803 goto out_free;
804 }
805
806 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
807 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
808
809 out_free:
810 kfree(cmd);
811
812 out:
813 return ret;
814 }
815
wl12xx_cmd_role_start_ibss(struct wl1271 * wl,struct wl12xx_vif * wlvif)816 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
817 {
818 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
819 struct wl12xx_cmd_role_start *cmd;
820 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
821 int ret;
822
823 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
824 if (!cmd) {
825 ret = -ENOMEM;
826 goto out;
827 }
828
829 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
830
831 cmd->role_id = wlvif->role_id;
832 if (wlvif->band == IEEE80211_BAND_5GHZ)
833 cmd->band = WL12XX_BAND_5GHZ;
834 cmd->channel = wlvif->channel;
835 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
836 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
837 cmd->ibss.dtim_interval = bss_conf->dtim_period;
838 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
839 cmd->ibss.ssid_len = wlvif->ssid_len;
840 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
841 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
842 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
843
844 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
845 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
846 if (ret)
847 goto out_free;
848 }
849 cmd->ibss.hlid = wlvif->sta.hlid;
850 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
851
852 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
853 "basic_rate_set: 0x%x, remote_rates: 0x%x",
854 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
855 wlvif->basic_rate_set, wlvif->rate_set);
856
857 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
858 vif->bss_conf.bssid);
859
860 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
861 if (ret < 0) {
862 wl1271_error("failed to initiate cmd role enable");
863 goto err_hlid;
864 }
865
866 goto out_free;
867
868 err_hlid:
869 /* clear links on error. */
870 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
871
872 out_free:
873 kfree(cmd);
874
875 out:
876 return ret;
877 }
878
879
880 /**
881 * send test command to firmware
882 *
883 * @wl: wl struct
884 * @buf: buffer containing the command, with all headers, must work with dma
885 * @len: length of the buffer
886 * @answer: is answer needed
887 */
wl1271_cmd_test(struct wl1271 * wl,void * buf,size_t buf_len,u8 answer)888 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
889 {
890 int ret;
891 size_t res_len = 0;
892
893 wl1271_debug(DEBUG_CMD, "cmd test");
894
895 if (answer)
896 res_len = buf_len;
897
898 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
899
900 if (ret < 0) {
901 wl1271_warning("TEST command failed");
902 return ret;
903 }
904
905 return ret;
906 }
907
908 /**
909 * read acx from firmware
910 *
911 * @wl: wl struct
912 * @id: acx id
913 * @buf: buffer for the response, including all headers, must work with dma
914 * @len: length of buf
915 */
wl1271_cmd_interrogate(struct wl1271 * wl,u16 id,void * buf,size_t len)916 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
917 {
918 struct acx_header *acx = buf;
919 int ret;
920
921 wl1271_debug(DEBUG_CMD, "cmd interrogate");
922
923 acx->id = cpu_to_le16(id);
924
925 /* payload length, does not include any headers */
926 acx->len = cpu_to_le16(len - sizeof(*acx));
927
928 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
929 if (ret < 0)
930 wl1271_error("INTERROGATE command failed");
931
932 return ret;
933 }
934
935 /**
936 * write acx value to firmware
937 *
938 * @wl: wl struct
939 * @id: acx id
940 * @buf: buffer containing acx, including all headers, must work with dma
941 * @len: length of buf
942 */
wl1271_cmd_configure(struct wl1271 * wl,u16 id,void * buf,size_t len)943 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
944 {
945 struct acx_header *acx = buf;
946 int ret;
947
948 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
949
950 acx->id = cpu_to_le16(id);
951
952 /* payload length, does not include any headers */
953 acx->len = cpu_to_le16(len - sizeof(*acx));
954
955 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
956 if (ret < 0) {
957 wl1271_warning("CONFIGURE command NOK");
958 return ret;
959 }
960
961 return 0;
962 }
963
wl1271_cmd_data_path(struct wl1271 * wl,bool enable)964 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
965 {
966 struct cmd_enabledisable_path *cmd;
967 int ret;
968 u16 cmd_rx, cmd_tx;
969
970 wl1271_debug(DEBUG_CMD, "cmd data path");
971
972 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
973 if (!cmd) {
974 ret = -ENOMEM;
975 goto out;
976 }
977
978 /* the channel here is only used for calibration, so hardcoded to 1 */
979 cmd->channel = 1;
980
981 if (enable) {
982 cmd_rx = CMD_ENABLE_RX;
983 cmd_tx = CMD_ENABLE_TX;
984 } else {
985 cmd_rx = CMD_DISABLE_RX;
986 cmd_tx = CMD_DISABLE_TX;
987 }
988
989 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
990 if (ret < 0) {
991 wl1271_error("rx %s cmd for channel %d failed",
992 enable ? "start" : "stop", cmd->channel);
993 goto out;
994 }
995
996 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
997 enable ? "start" : "stop", cmd->channel);
998
999 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
1000 if (ret < 0) {
1001 wl1271_error("tx %s cmd for channel %d failed",
1002 enable ? "start" : "stop", cmd->channel);
1003 goto out;
1004 }
1005
1006 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
1007 enable ? "start" : "stop", cmd->channel);
1008
1009 out:
1010 kfree(cmd);
1011 return ret;
1012 }
1013
wl1271_cmd_ps_mode(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 ps_mode,u16 auto_ps_timeout)1014 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1015 u8 ps_mode, u16 auto_ps_timeout)
1016 {
1017 struct wl1271_cmd_ps_params *ps_params = NULL;
1018 int ret = 0;
1019
1020 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
1021
1022 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
1023 if (!ps_params) {
1024 ret = -ENOMEM;
1025 goto out;
1026 }
1027
1028 ps_params->role_id = wlvif->role_id;
1029 ps_params->ps_mode = ps_mode;
1030 ps_params->auto_ps_timeout = auto_ps_timeout;
1031
1032 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1033 sizeof(*ps_params), 0);
1034 if (ret < 0) {
1035 wl1271_error("cmd set_ps_mode failed");
1036 goto out;
1037 }
1038
1039 out:
1040 kfree(ps_params);
1041 return ret;
1042 }
1043
wl1271_cmd_template_set(struct wl1271 * wl,u8 role_id,u16 template_id,void * buf,size_t buf_len,int index,u32 rates)1044 int wl1271_cmd_template_set(struct wl1271 *wl, u8 role_id,
1045 u16 template_id, void *buf, size_t buf_len,
1046 int index, u32 rates)
1047 {
1048 struct wl1271_cmd_template_set *cmd;
1049 int ret = 0;
1050
1051 wl1271_debug(DEBUG_CMD, "cmd template_set %d (role %d)",
1052 template_id, role_id);
1053
1054 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1055 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1056
1057 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1058 if (!cmd) {
1059 ret = -ENOMEM;
1060 goto out;
1061 }
1062
1063 /* during initialization wlvif is NULL */
1064 cmd->role_id = role_id;
1065 cmd->len = cpu_to_le16(buf_len);
1066 cmd->template_type = template_id;
1067 cmd->enabled_rates = cpu_to_le32(rates);
1068 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1069 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1070 cmd->index = index;
1071
1072 if (buf)
1073 memcpy(cmd->template_data, buf, buf_len);
1074
1075 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1076 if (ret < 0) {
1077 wl1271_warning("cmd set_template failed: %d", ret);
1078 goto out_free;
1079 }
1080
1081 out_free:
1082 kfree(cmd);
1083
1084 out:
1085 return ret;
1086 }
1087
wl12xx_cmd_build_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1088 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1089 {
1090 struct sk_buff *skb = NULL;
1091 int size;
1092 void *ptr;
1093 int ret = -ENOMEM;
1094
1095
1096 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1097 size = sizeof(struct wl12xx_null_data_template);
1098 ptr = NULL;
1099 } else {
1100 skb = ieee80211_nullfunc_get(wl->hw,
1101 wl12xx_wlvif_to_vif(wlvif));
1102 if (!skb)
1103 goto out;
1104 size = skb->len;
1105 ptr = skb->data;
1106 }
1107
1108 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1109 CMD_TEMPL_NULL_DATA, ptr, size, 0,
1110 wlvif->basic_rate);
1111
1112 out:
1113 dev_kfree_skb(skb);
1114 if (ret)
1115 wl1271_warning("cmd buld null data failed %d", ret);
1116
1117 return ret;
1118
1119 }
1120
wl12xx_cmd_build_klv_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1121 int wl12xx_cmd_build_klv_null_data(struct wl1271 *wl,
1122 struct wl12xx_vif *wlvif)
1123 {
1124 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1125 struct sk_buff *skb = NULL;
1126 int ret = -ENOMEM;
1127
1128 skb = ieee80211_nullfunc_get(wl->hw, vif);
1129 if (!skb)
1130 goto out;
1131
1132 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_KLV,
1133 skb->data, skb->len,
1134 CMD_TEMPL_KLV_IDX_NULL_DATA,
1135 wlvif->basic_rate);
1136
1137 out:
1138 dev_kfree_skb(skb);
1139 if (ret)
1140 wl1271_warning("cmd build klv null data failed %d", ret);
1141
1142 return ret;
1143
1144 }
1145
wl1271_cmd_build_ps_poll(struct wl1271 * wl,struct wl12xx_vif * wlvif,u16 aid)1146 int wl1271_cmd_build_ps_poll(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1147 u16 aid)
1148 {
1149 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1150 struct sk_buff *skb;
1151 int ret = 0;
1152
1153 skb = ieee80211_pspoll_get(wl->hw, vif);
1154 if (!skb)
1155 goto out;
1156
1157 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1158 CMD_TEMPL_PS_POLL, skb->data,
1159 skb->len, 0, wlvif->basic_rate_set);
1160
1161 out:
1162 dev_kfree_skb(skb);
1163 return ret;
1164 }
1165
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 * ie,size_t ie_len)1166 int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1167 u8 role_id, u8 band,
1168 const u8 *ssid, size_t ssid_len,
1169 const u8 *ie, size_t ie_len)
1170 {
1171 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1172 struct sk_buff *skb;
1173 int ret;
1174 u32 rate;
1175
1176 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
1177 ie, ie_len);
1178 if (!skb) {
1179 ret = -ENOMEM;
1180 goto out;
1181 }
1182
1183 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
1184
1185 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1186 if (band == IEEE80211_BAND_2GHZ)
1187 ret = wl1271_cmd_template_set(wl, role_id,
1188 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1189 skb->data, skb->len, 0, rate);
1190 else
1191 ret = wl1271_cmd_template_set(wl, role_id,
1192 CMD_TEMPL_CFG_PROBE_REQ_5,
1193 skb->data, skb->len, 0, rate);
1194
1195 out:
1196 dev_kfree_skb(skb);
1197 return ret;
1198 }
1199
wl1271_cmd_build_ap_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct sk_buff * skb)1200 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1201 struct wl12xx_vif *wlvif,
1202 struct sk_buff *skb)
1203 {
1204 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1205 int ret;
1206 u32 rate;
1207
1208 if (!skb)
1209 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1210 if (!skb)
1211 goto out;
1212
1213 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
1214
1215 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1216 if (wlvif->band == IEEE80211_BAND_2GHZ)
1217 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1218 CMD_TEMPL_CFG_PROBE_REQ_2_4,
1219 skb->data, skb->len, 0, rate);
1220 else
1221 ret = wl1271_cmd_template_set(wl, wlvif->role_id,
1222 CMD_TEMPL_CFG_PROBE_REQ_5,
1223 skb->data, skb->len, 0, rate);
1224
1225 if (ret < 0)
1226 wl1271_error("Unable to set ap probe request template.");
1227
1228 out:
1229 return skb;
1230 }
1231
wl1271_cmd_build_arp_rsp(struct wl1271 * wl,struct wl12xx_vif * wlvif)1232 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1233 {
1234 int ret, extra;
1235 u16 fc;
1236 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1237 struct sk_buff *skb;
1238 struct wl12xx_arp_rsp_template *tmpl;
1239 struct ieee80211_hdr_3addr *hdr;
1240 struct arphdr *arp_hdr;
1241
1242 skb = dev_alloc_skb(sizeof(*hdr) + sizeof(__le16) + sizeof(*tmpl) +
1243 WL1271_EXTRA_SPACE_MAX);
1244 if (!skb) {
1245 wl1271_error("failed to allocate buffer for arp rsp template");
1246 return -ENOMEM;
1247 }
1248
1249 skb_reserve(skb, sizeof(*hdr) + WL1271_EXTRA_SPACE_MAX);
1250
1251 tmpl = (struct wl12xx_arp_rsp_template *)skb_put(skb, sizeof(*tmpl));
1252 memset(tmpl, 0, sizeof(tmpl));
1253
1254 /* llc layer */
1255 memcpy(tmpl->llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1256 tmpl->llc_type = cpu_to_be16(ETH_P_ARP);
1257
1258 /* arp header */
1259 arp_hdr = &tmpl->arp_hdr;
1260 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1261 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1262 arp_hdr->ar_hln = ETH_ALEN;
1263 arp_hdr->ar_pln = 4;
1264 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1265
1266 /* arp payload */
1267 memcpy(tmpl->sender_hw, vif->addr, ETH_ALEN);
1268 tmpl->sender_ip = wlvif->ip_addr;
1269
1270 /* encryption space */
1271 switch (wlvif->encryption_type) {
1272 case KEY_TKIP:
1273 extra = WL1271_EXTRA_SPACE_TKIP;
1274 break;
1275 case KEY_AES:
1276 extra = WL1271_EXTRA_SPACE_AES;
1277 break;
1278 case KEY_NONE:
1279 case KEY_WEP:
1280 case KEY_GEM:
1281 extra = 0;
1282 break;
1283 default:
1284 wl1271_warning("Unknown encryption type: %d",
1285 wlvif->encryption_type);
1286 ret = -EINVAL;
1287 goto out;
1288 }
1289
1290 if (extra) {
1291 u8 *space = skb_push(skb, extra);
1292 memset(space, 0, extra);
1293 }
1294
1295 /* QoS header - BE */
1296 if (wlvif->sta.qos)
1297 memset(skb_push(skb, sizeof(__le16)), 0, sizeof(__le16));
1298
1299 /* mac80211 header */
1300 hdr = (struct ieee80211_hdr_3addr *)skb_push(skb, sizeof(*hdr));
1301 memset(hdr, 0, sizeof(hdr));
1302 fc = IEEE80211_FTYPE_DATA | IEEE80211_FCTL_TODS;
1303 if (wlvif->sta.qos)
1304 fc |= IEEE80211_STYPE_QOS_DATA;
1305 else
1306 fc |= IEEE80211_STYPE_DATA;
1307 if (wlvif->encryption_type != KEY_NONE)
1308 fc |= IEEE80211_FCTL_PROTECTED;
1309
1310 hdr->frame_control = cpu_to_le16(fc);
1311 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1312 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1313 memset(hdr->addr3, 0xff, ETH_ALEN);
1314
1315 ret = wl1271_cmd_template_set(wl, wlvif->role_id, CMD_TEMPL_ARP_RSP,
1316 skb->data, skb->len, 0,
1317 wlvif->basic_rate);
1318 out:
1319 dev_kfree_skb(skb);
1320 return ret;
1321 }
1322
wl1271_build_qos_null_data(struct wl1271 * wl,struct ieee80211_vif * vif)1323 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1324 {
1325 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1326 struct ieee80211_qos_hdr template;
1327
1328 memset(&template, 0, sizeof(template));
1329
1330 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1331 memcpy(template.addr2, vif->addr, ETH_ALEN);
1332 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1333
1334 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1335 IEEE80211_STYPE_QOS_NULLFUNC |
1336 IEEE80211_FCTL_TODS);
1337
1338 /* FIXME: not sure what priority to use here */
1339 template.qos_ctrl = cpu_to_le16(0);
1340
1341 return wl1271_cmd_template_set(wl, wlvif->role_id,
1342 CMD_TEMPL_QOS_NULL_DATA, &template,
1343 sizeof(template), 0,
1344 wlvif->basic_rate);
1345 }
1346
wl12xx_cmd_set_default_wep_key(struct wl1271 * wl,u8 id,u8 hlid)1347 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1348 {
1349 struct wl1271_cmd_set_keys *cmd;
1350 int ret = 0;
1351
1352 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1353
1354 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1355 if (!cmd) {
1356 ret = -ENOMEM;
1357 goto out;
1358 }
1359
1360 cmd->hlid = hlid;
1361 cmd->key_id = id;
1362 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1363 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1364 cmd->key_type = KEY_WEP;
1365
1366 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1367 if (ret < 0) {
1368 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1369 goto out;
1370 }
1371
1372 out:
1373 kfree(cmd);
1374
1375 return ret;
1376 }
1377
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)1378 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1379 u16 action, u8 id, u8 key_type,
1380 u8 key_size, const u8 *key, const u8 *addr,
1381 u32 tx_seq_32, u16 tx_seq_16)
1382 {
1383 struct wl1271_cmd_set_keys *cmd;
1384 int ret = 0;
1385
1386 /* hlid might have already been deleted */
1387 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1388 return 0;
1389
1390 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1391 if (!cmd) {
1392 ret = -ENOMEM;
1393 goto out;
1394 }
1395
1396 cmd->hlid = wlvif->sta.hlid;
1397
1398 if (key_type == KEY_WEP)
1399 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1400 else if (is_broadcast_ether_addr(addr))
1401 cmd->lid_key_type = BROADCAST_LID_TYPE;
1402 else
1403 cmd->lid_key_type = UNICAST_LID_TYPE;
1404
1405 cmd->key_action = cpu_to_le16(action);
1406 cmd->key_size = key_size;
1407 cmd->key_type = key_type;
1408
1409 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1410 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1411
1412 cmd->key_id = id;
1413
1414 if (key_type == KEY_TKIP) {
1415 /*
1416 * We get the key in the following form:
1417 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1418 * but the target is expecting:
1419 * TKIP - RX MIC - TX MIC
1420 */
1421 memcpy(cmd->key, key, 16);
1422 memcpy(cmd->key + 16, key + 24, 8);
1423 memcpy(cmd->key + 24, key + 16, 8);
1424
1425 } else {
1426 memcpy(cmd->key, key, key_size);
1427 }
1428
1429 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1430
1431 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1432 if (ret < 0) {
1433 wl1271_warning("could not set keys");
1434 goto out;
1435 }
1436
1437 out:
1438 kfree(cmd);
1439
1440 return ret;
1441 }
1442
1443 /*
1444 * TODO: merge with sta/ibss into 1 set_key function.
1445 * note there are slight diffs
1446 */
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)1447 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1448 u16 action, u8 id, u8 key_type,
1449 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1450 u16 tx_seq_16)
1451 {
1452 struct wl1271_cmd_set_keys *cmd;
1453 int ret = 0;
1454 u8 lid_type;
1455
1456 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1457 if (!cmd)
1458 return -ENOMEM;
1459
1460 if (hlid == wlvif->ap.bcast_hlid) {
1461 if (key_type == KEY_WEP)
1462 lid_type = WEP_DEFAULT_LID_TYPE;
1463 else
1464 lid_type = BROADCAST_LID_TYPE;
1465 } else {
1466 lid_type = UNICAST_LID_TYPE;
1467 }
1468
1469 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1470 " hlid: %d", (int)action, (int)id, (int)lid_type,
1471 (int)key_type, (int)hlid);
1472
1473 cmd->lid_key_type = lid_type;
1474 cmd->hlid = hlid;
1475 cmd->key_action = cpu_to_le16(action);
1476 cmd->key_size = key_size;
1477 cmd->key_type = key_type;
1478 cmd->key_id = id;
1479 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1480 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1481
1482 if (key_type == KEY_TKIP) {
1483 /*
1484 * We get the key in the following form:
1485 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1486 * but the target is expecting:
1487 * TKIP - RX MIC - TX MIC
1488 */
1489 memcpy(cmd->key, key, 16);
1490 memcpy(cmd->key + 16, key + 24, 8);
1491 memcpy(cmd->key + 24, key + 16, 8);
1492 } else {
1493 memcpy(cmd->key, key, key_size);
1494 }
1495
1496 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1497
1498 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1499 if (ret < 0) {
1500 wl1271_warning("could not set ap keys");
1501 goto out;
1502 }
1503
1504 out:
1505 kfree(cmd);
1506 return ret;
1507 }
1508
wl12xx_cmd_set_peer_state(struct wl1271 * wl,u8 hlid)1509 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid)
1510 {
1511 struct wl12xx_cmd_set_peer_state *cmd;
1512 int ret = 0;
1513
1514 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1515
1516 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1517 if (!cmd) {
1518 ret = -ENOMEM;
1519 goto out;
1520 }
1521
1522 cmd->hlid = hlid;
1523 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1524
1525 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1526 if (ret < 0) {
1527 wl1271_error("failed to send set peer state command");
1528 goto out_free;
1529 }
1530
1531 out_free:
1532 kfree(cmd);
1533
1534 out:
1535 return ret;
1536 }
1537
wl12xx_cmd_add_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct ieee80211_sta * sta,u8 hlid)1538 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1539 struct ieee80211_sta *sta, u8 hlid)
1540 {
1541 struct wl12xx_cmd_add_peer *cmd;
1542 int i, ret;
1543 u32 sta_rates;
1544
1545 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1546
1547 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1548 if (!cmd) {
1549 ret = -ENOMEM;
1550 goto out;
1551 }
1552
1553 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1554 cmd->bss_index = WL1271_AP_BSS_INDEX;
1555 cmd->aid = sta->aid;
1556 cmd->hlid = hlid;
1557 cmd->sp_len = sta->max_sp;
1558 cmd->wmm = sta->wme ? 1 : 0;
1559
1560 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1561 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1562 cmd->psd_type[i] = WL1271_PSD_UPSD_TRIGGER;
1563 else
1564 cmd->psd_type[i] = WL1271_PSD_LEGACY;
1565
1566 sta_rates = sta->supp_rates[wlvif->band];
1567 if (sta->ht_cap.ht_supported)
1568 sta_rates |= sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET;
1569
1570 cmd->supported_rates =
1571 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1572 wlvif->band));
1573
1574 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1575 cmd->supported_rates, sta->uapsd_queues);
1576
1577 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1578 if (ret < 0) {
1579 wl1271_error("failed to initiate cmd add peer");
1580 goto out_free;
1581 }
1582
1583 out_free:
1584 kfree(cmd);
1585
1586 out:
1587 return ret;
1588 }
1589
wl12xx_cmd_remove_peer(struct wl1271 * wl,u8 hlid)1590 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid)
1591 {
1592 struct wl12xx_cmd_remove_peer *cmd;
1593 int ret;
1594
1595 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1596
1597 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1598 if (!cmd) {
1599 ret = -ENOMEM;
1600 goto out;
1601 }
1602
1603 cmd->hlid = hlid;
1604 /* We never send a deauth, mac80211 is in charge of this */
1605 cmd->reason_opcode = 0;
1606 cmd->send_deauth_flag = 0;
1607
1608 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1609 if (ret < 0) {
1610 wl1271_error("failed to initiate cmd remove peer");
1611 goto out_free;
1612 }
1613
1614 /*
1615 * We are ok with a timeout here. The event is sometimes not sent
1616 * due to a firmware bug.
1617 */
1618 wl1271_cmd_wait_for_event_or_timeout(wl,
1619 PEER_REMOVE_COMPLETE_EVENT_ID);
1620
1621 out_free:
1622 kfree(cmd);
1623
1624 out:
1625 return ret;
1626 }
1627
wl12xx_cmd_config_fwlog(struct wl1271 * wl)1628 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1629 {
1630 struct wl12xx_cmd_config_fwlog *cmd;
1631 int ret = 0;
1632
1633 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1634
1635 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1636 if (!cmd) {
1637 ret = -ENOMEM;
1638 goto out;
1639 }
1640
1641 cmd->logger_mode = wl->conf.fwlog.mode;
1642 cmd->log_severity = wl->conf.fwlog.severity;
1643 cmd->timestamp = wl->conf.fwlog.timestamp;
1644 cmd->output = wl->conf.fwlog.output;
1645 cmd->threshold = wl->conf.fwlog.threshold;
1646
1647 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1648 if (ret < 0) {
1649 wl1271_error("failed to send config firmware logger command");
1650 goto out_free;
1651 }
1652
1653 out_free:
1654 kfree(cmd);
1655
1656 out:
1657 return ret;
1658 }
1659
wl12xx_cmd_start_fwlog(struct wl1271 * wl)1660 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1661 {
1662 struct wl12xx_cmd_start_fwlog *cmd;
1663 int ret = 0;
1664
1665 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1666
1667 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1668 if (!cmd) {
1669 ret = -ENOMEM;
1670 goto out;
1671 }
1672
1673 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1674 if (ret < 0) {
1675 wl1271_error("failed to send start firmware logger command");
1676 goto out_free;
1677 }
1678
1679 out_free:
1680 kfree(cmd);
1681
1682 out:
1683 return ret;
1684 }
1685
wl12xx_cmd_stop_fwlog(struct wl1271 * wl)1686 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1687 {
1688 struct wl12xx_cmd_stop_fwlog *cmd;
1689 int ret = 0;
1690
1691 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1692
1693 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1694 if (!cmd) {
1695 ret = -ENOMEM;
1696 goto out;
1697 }
1698
1699 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1700 if (ret < 0) {
1701 wl1271_error("failed to send stop firmware logger command");
1702 goto out_free;
1703 }
1704
1705 out_free:
1706 kfree(cmd);
1707
1708 out:
1709 return ret;
1710 }
1711
wl12xx_cmd_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id)1712 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1713 u8 role_id)
1714 {
1715 struct wl12xx_cmd_roc *cmd;
1716 int ret = 0;
1717
1718 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id);
1719
1720 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1721 return -EINVAL;
1722
1723 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1724 if (!cmd) {
1725 ret = -ENOMEM;
1726 goto out;
1727 }
1728
1729 cmd->role_id = role_id;
1730 cmd->channel = wlvif->channel;
1731 switch (wlvif->band) {
1732 case IEEE80211_BAND_2GHZ:
1733 cmd->band = RADIO_BAND_2_4GHZ;
1734 break;
1735 case IEEE80211_BAND_5GHZ:
1736 cmd->band = RADIO_BAND_5GHZ;
1737 break;
1738 default:
1739 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1740 ret = -EINVAL;
1741 goto out_free;
1742 }
1743
1744
1745 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1746 if (ret < 0) {
1747 wl1271_error("failed to send ROC command");
1748 goto out_free;
1749 }
1750
1751 out_free:
1752 kfree(cmd);
1753
1754 out:
1755 return ret;
1756 }
1757
wl12xx_cmd_croc(struct wl1271 * wl,u8 role_id)1758 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1759 {
1760 struct wl12xx_cmd_croc *cmd;
1761 int ret = 0;
1762
1763 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1764
1765 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1766 if (!cmd) {
1767 ret = -ENOMEM;
1768 goto out;
1769 }
1770 cmd->role_id = role_id;
1771
1772 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1773 sizeof(*cmd), 0);
1774 if (ret < 0) {
1775 wl1271_error("failed to send ROC command");
1776 goto out_free;
1777 }
1778
1779 out_free:
1780 kfree(cmd);
1781
1782 out:
1783 return ret;
1784 }
1785
wl12xx_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id)1786 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id)
1787 {
1788 int ret = 0;
1789
1790 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1791 return 0;
1792
1793 ret = wl12xx_cmd_roc(wl, wlvif, role_id);
1794 if (ret < 0)
1795 goto out;
1796
1797 ret = wl1271_cmd_wait_for_event(wl,
1798 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
1799 if (ret < 0) {
1800 wl1271_error("cmd roc event completion error");
1801 goto out;
1802 }
1803
1804 __set_bit(role_id, wl->roc_map);
1805 out:
1806 return ret;
1807 }
1808
wl12xx_croc(struct wl1271 * wl,u8 role_id)1809 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1810 {
1811 int ret = 0;
1812
1813 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1814 return 0;
1815
1816 ret = wl12xx_cmd_croc(wl, role_id);
1817 if (ret < 0)
1818 goto out;
1819
1820 __clear_bit(role_id, wl->roc_map);
1821
1822 /*
1823 * Rearm the tx watchdog when removing the last ROC. This prevents
1824 * recoveries due to just finished ROCs - when Tx hasn't yet had
1825 * a chance to get out.
1826 */
1827 if (find_first_bit(wl->roc_map, WL12XX_MAX_ROLES) >= WL12XX_MAX_ROLES)
1828 wl12xx_rearm_tx_watchdog_locked(wl);
1829 out:
1830 return ret;
1831 }
1832
wl12xx_cmd_channel_switch(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct ieee80211_channel_switch * ch_switch)1833 int wl12xx_cmd_channel_switch(struct wl1271 *wl,
1834 struct wl12xx_vif *wlvif,
1835 struct ieee80211_channel_switch *ch_switch)
1836 {
1837 struct wl12xx_cmd_channel_switch *cmd;
1838 int ret;
1839
1840 wl1271_debug(DEBUG_ACX, "cmd channel switch");
1841
1842 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1843 if (!cmd) {
1844 ret = -ENOMEM;
1845 goto out;
1846 }
1847
1848 cmd->role_id = wlvif->role_id;
1849 cmd->channel = ch_switch->channel->hw_value;
1850 cmd->switch_time = ch_switch->count;
1851 cmd->stop_tx = ch_switch->block_tx;
1852
1853 /* FIXME: control from mac80211 in the future */
1854 cmd->post_switch_tx_disable = 0; /* Enable TX on the target channel */
1855
1856 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
1857 if (ret < 0) {
1858 wl1271_error("failed to send channel switch command");
1859 goto out_free;
1860 }
1861
1862 out_free:
1863 kfree(cmd);
1864
1865 out:
1866 return ret;
1867 }
1868
wl12xx_cmd_stop_channel_switch(struct wl1271 * wl)1869 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl)
1870 {
1871 struct wl12xx_cmd_stop_channel_switch *cmd;
1872 int ret;
1873
1874 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1875
1876 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1877 if (!cmd) {
1878 ret = -ENOMEM;
1879 goto out;
1880 }
1881
1882 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1883 if (ret < 0) {
1884 wl1271_error("failed to stop channel switch command");
1885 goto out_free;
1886 }
1887
1888 out_free:
1889 kfree(cmd);
1890
1891 out:
1892 return ret;
1893 }
1894
1895 /* start dev role and roc on its channel */
wl12xx_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)1896 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1897 {
1898 int ret;
1899
1900 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1901 wlvif->bss_type == BSS_TYPE_IBSS)))
1902 return -EINVAL;
1903
1904 ret = wl12xx_cmd_role_start_dev(wl, wlvif);
1905 if (ret < 0)
1906 goto out;
1907
1908 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
1909 if (ret < 0)
1910 goto out_stop;
1911
1912 return 0;
1913
1914 out_stop:
1915 wl12xx_cmd_role_stop_dev(wl, wlvif);
1916 out:
1917 return ret;
1918 }
1919
1920 /* croc dev hlid, and stop the role */
wl12xx_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)1921 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1922 {
1923 int ret;
1924
1925 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1926 wlvif->bss_type == BSS_TYPE_IBSS)))
1927 return -EINVAL;
1928
1929 /* flush all pending packets */
1930 wl1271_tx_work_locked(wl);
1931
1932 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
1933 ret = wl12xx_croc(wl, wlvif->dev_role_id);
1934 if (ret < 0)
1935 goto out;
1936 }
1937
1938 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
1939 if (ret < 0)
1940 goto out;
1941 out:
1942 return ret;
1943 }
1944