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 u8 link = find_first_zero_bit(wl->links_map, WL12XX_MAX_LINKS);
463 if (link >= WL12XX_MAX_LINKS)
464 return -EBUSY;
465
466 __set_bit(link, wl->links_map);
467 __set_bit(link, wlvif->links_map);
468 *hlid = link;
469 return 0;
470 }
471
wl12xx_free_link(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 * hlid)472 void wl12xx_free_link(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 *hlid)
473 {
474 if (*hlid == WL12XX_INVALID_LINK_ID)
475 return;
476
477 __clear_bit(*hlid, wl->links_map);
478 __clear_bit(*hlid, wlvif->links_map);
479 *hlid = WL12XX_INVALID_LINK_ID;
480 }
481
wl12xx_get_new_session_id(struct wl1271 * wl,struct wl12xx_vif * wlvif)482 static int wl12xx_get_new_session_id(struct wl1271 *wl,
483 struct wl12xx_vif *wlvif)
484 {
485 if (wlvif->session_counter >= SESSION_COUNTER_MAX)
486 wlvif->session_counter = 0;
487
488 wlvif->session_counter++;
489
490 return wlvif->session_counter;
491 }
492
wl12xx_cmd_role_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)493 static int wl12xx_cmd_role_start_dev(struct wl1271 *wl,
494 struct wl12xx_vif *wlvif)
495 {
496 struct wl12xx_cmd_role_start *cmd;
497 int ret;
498
499 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
500 if (!cmd) {
501 ret = -ENOMEM;
502 goto out;
503 }
504
505 wl1271_debug(DEBUG_CMD, "cmd role start dev %d", wlvif->dev_role_id);
506
507 cmd->role_id = wlvif->dev_role_id;
508 if (wlvif->band == IEEE80211_BAND_5GHZ)
509 cmd->band = WL12XX_BAND_5GHZ;
510 cmd->channel = wlvif->channel;
511
512 if (wlvif->dev_hlid == WL12XX_INVALID_LINK_ID) {
513 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->dev_hlid);
514 if (ret)
515 goto out_free;
516 }
517 cmd->device.hlid = wlvif->dev_hlid;
518 cmd->device.session = wlvif->session_counter;
519
520 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d",
521 cmd->role_id, cmd->device.hlid, cmd->device.session);
522
523 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
524 if (ret < 0) {
525 wl1271_error("failed to initiate cmd role enable");
526 goto err_hlid;
527 }
528
529 goto out_free;
530
531 err_hlid:
532 /* clear links on error */
533 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
534
535 out_free:
536 kfree(cmd);
537
538 out:
539 return ret;
540 }
541
wl12xx_cmd_role_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)542 static int wl12xx_cmd_role_stop_dev(struct wl1271 *wl,
543 struct wl12xx_vif *wlvif)
544 {
545 struct wl12xx_cmd_role_stop *cmd;
546 int ret;
547
548 if (WARN_ON(wlvif->dev_hlid == WL12XX_INVALID_LINK_ID))
549 return -EINVAL;
550
551 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
552 if (!cmd) {
553 ret = -ENOMEM;
554 goto out;
555 }
556
557 wl1271_debug(DEBUG_CMD, "cmd role stop dev");
558
559 cmd->role_id = wlvif->dev_role_id;
560 cmd->disc_type = DISCONNECT_IMMEDIATE;
561 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
562
563 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
564 if (ret < 0) {
565 wl1271_error("failed to initiate cmd role stop");
566 goto out_free;
567 }
568
569 ret = wl1271_cmd_wait_for_event(wl, DISCONNECT_EVENT_COMPLETE_ID);
570 if (ret < 0) {
571 wl1271_error("cmd role stop dev event completion error");
572 goto out_free;
573 }
574
575 wl12xx_free_link(wl, wlvif, &wlvif->dev_hlid);
576
577 out_free:
578 kfree(cmd);
579
580 out:
581 return ret;
582 }
583
wl12xx_cmd_role_start_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)584 int wl12xx_cmd_role_start_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
585 {
586 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
587 struct wl12xx_cmd_role_start *cmd;
588 int ret;
589
590 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
591 if (!cmd) {
592 ret = -ENOMEM;
593 goto out;
594 }
595
596 wl1271_debug(DEBUG_CMD, "cmd role start sta %d", wlvif->role_id);
597
598 cmd->role_id = wlvif->role_id;
599 if (wlvif->band == IEEE80211_BAND_5GHZ)
600 cmd->band = WL12XX_BAND_5GHZ;
601 cmd->channel = wlvif->channel;
602 cmd->sta.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
603 cmd->sta.beacon_interval = cpu_to_le16(wlvif->beacon_int);
604 cmd->sta.ssid_type = WL12XX_SSID_TYPE_ANY;
605 cmd->sta.ssid_len = wlvif->ssid_len;
606 memcpy(cmd->sta.ssid, wlvif->ssid, wlvif->ssid_len);
607 memcpy(cmd->sta.bssid, vif->bss_conf.bssid, ETH_ALEN);
608 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
609
610 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
611 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
612 if (ret)
613 goto out_free;
614 }
615 cmd->sta.hlid = wlvif->sta.hlid;
616 cmd->sta.session = wl12xx_get_new_session_id(wl, wlvif);
617 cmd->sta.remote_rates = cpu_to_le32(wlvif->rate_set);
618
619 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
620 "basic_rate_set: 0x%x, remote_rates: 0x%x",
621 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
622 wlvif->basic_rate_set, wlvif->rate_set);
623
624 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
625 if (ret < 0) {
626 wl1271_error("failed to initiate cmd role start sta");
627 goto err_hlid;
628 }
629
630 goto out_free;
631
632 err_hlid:
633 /* clear links on error. */
634 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
635
636 out_free:
637 kfree(cmd);
638
639 out:
640 return ret;
641 }
642
643 /* use this function to stop ibss as well */
wl12xx_cmd_role_stop_sta(struct wl1271 * wl,struct wl12xx_vif * wlvif)644 int wl12xx_cmd_role_stop_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif)
645 {
646 struct wl12xx_cmd_role_stop *cmd;
647 int ret;
648
649 if (WARN_ON(wlvif->sta.hlid == WL12XX_INVALID_LINK_ID))
650 return -EINVAL;
651
652 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
653 if (!cmd) {
654 ret = -ENOMEM;
655 goto out;
656 }
657
658 wl1271_debug(DEBUG_CMD, "cmd role stop sta %d", wlvif->role_id);
659
660 cmd->role_id = wlvif->role_id;
661 cmd->disc_type = DISCONNECT_IMMEDIATE;
662 cmd->reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
663
664 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
665 if (ret < 0) {
666 wl1271_error("failed to initiate cmd role stop sta");
667 goto out_free;
668 }
669
670 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
671
672 out_free:
673 kfree(cmd);
674
675 out:
676 return ret;
677 }
678
wl12xx_cmd_role_start_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)679 int wl12xx_cmd_role_start_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
680 {
681 struct wl12xx_cmd_role_start *cmd;
682 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
683 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
684 int ret;
685
686 wl1271_debug(DEBUG_CMD, "cmd role start ap %d", wlvif->role_id);
687
688 /* trying to use hidden SSID with an old hostapd version */
689 if (wlvif->ssid_len == 0 && !bss_conf->hidden_ssid) {
690 wl1271_error("got a null SSID from beacon/bss");
691 ret = -EINVAL;
692 goto out;
693 }
694
695 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
696 if (!cmd) {
697 ret = -ENOMEM;
698 goto out;
699 }
700
701 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.global_hlid);
702 if (ret < 0)
703 goto out_free;
704
705 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->ap.bcast_hlid);
706 if (ret < 0)
707 goto out_free_global;
708
709 cmd->role_id = wlvif->role_id;
710 cmd->ap.aging_period = cpu_to_le16(wl->conf.tx.ap_aging_period);
711 cmd->ap.bss_index = WL1271_AP_BSS_INDEX;
712 cmd->ap.global_hlid = wlvif->ap.global_hlid;
713 cmd->ap.broadcast_hlid = wlvif->ap.bcast_hlid;
714 cmd->ap.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
715 cmd->ap.beacon_interval = cpu_to_le16(wlvif->beacon_int);
716 cmd->ap.dtim_interval = bss_conf->dtim_period;
717 cmd->ap.beacon_expiry = WL1271_AP_DEF_BEACON_EXP;
718 cmd->channel = wlvif->channel;
719
720 if (!bss_conf->hidden_ssid) {
721 /* take the SSID from the beacon for backward compatibility */
722 cmd->ap.ssid_type = WL12XX_SSID_TYPE_PUBLIC;
723 cmd->ap.ssid_len = wlvif->ssid_len;
724 memcpy(cmd->ap.ssid, wlvif->ssid, wlvif->ssid_len);
725 } else {
726 cmd->ap.ssid_type = WL12XX_SSID_TYPE_HIDDEN;
727 cmd->ap.ssid_len = bss_conf->ssid_len;
728 memcpy(cmd->ap.ssid, bss_conf->ssid, bss_conf->ssid_len);
729 }
730
731 cmd->ap.local_rates = cpu_to_le32(0xffffffff);
732
733 switch (wlvif->band) {
734 case IEEE80211_BAND_2GHZ:
735 cmd->band = RADIO_BAND_2_4GHZ;
736 break;
737 case IEEE80211_BAND_5GHZ:
738 cmd->band = RADIO_BAND_5GHZ;
739 break;
740 default:
741 wl1271_warning("ap start - unknown band: %d", (int)wlvif->band);
742 cmd->band = RADIO_BAND_2_4GHZ;
743 break;
744 }
745
746 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
747 if (ret < 0) {
748 wl1271_error("failed to initiate cmd role start ap");
749 goto out_free_bcast;
750 }
751
752 goto out_free;
753
754 out_free_bcast:
755 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
756
757 out_free_global:
758 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
759
760 out_free:
761 kfree(cmd);
762
763 out:
764 return ret;
765 }
766
wl12xx_cmd_role_stop_ap(struct wl1271 * wl,struct wl12xx_vif * wlvif)767 int wl12xx_cmd_role_stop_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif)
768 {
769 struct wl12xx_cmd_role_stop *cmd;
770 int ret;
771
772 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
773 if (!cmd) {
774 ret = -ENOMEM;
775 goto out;
776 }
777
778 wl1271_debug(DEBUG_CMD, "cmd role stop ap %d", wlvif->role_id);
779
780 cmd->role_id = wlvif->role_id;
781
782 ret = wl1271_cmd_send(wl, CMD_ROLE_STOP, cmd, sizeof(*cmd), 0);
783 if (ret < 0) {
784 wl1271_error("failed to initiate cmd role stop ap");
785 goto out_free;
786 }
787
788 wl12xx_free_link(wl, wlvif, &wlvif->ap.bcast_hlid);
789 wl12xx_free_link(wl, wlvif, &wlvif->ap.global_hlid);
790
791 out_free:
792 kfree(cmd);
793
794 out:
795 return ret;
796 }
797
wl12xx_cmd_role_start_ibss(struct wl1271 * wl,struct wl12xx_vif * wlvif)798 int wl12xx_cmd_role_start_ibss(struct wl1271 *wl, struct wl12xx_vif *wlvif)
799 {
800 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
801 struct wl12xx_cmd_role_start *cmd;
802 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
803 int ret;
804
805 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
806 if (!cmd) {
807 ret = -ENOMEM;
808 goto out;
809 }
810
811 wl1271_debug(DEBUG_CMD, "cmd role start ibss %d", wlvif->role_id);
812
813 cmd->role_id = wlvif->role_id;
814 if (wlvif->band == IEEE80211_BAND_5GHZ)
815 cmd->band = WL12XX_BAND_5GHZ;
816 cmd->channel = wlvif->channel;
817 cmd->ibss.basic_rate_set = cpu_to_le32(wlvif->basic_rate_set);
818 cmd->ibss.beacon_interval = cpu_to_le16(wlvif->beacon_int);
819 cmd->ibss.dtim_interval = bss_conf->dtim_period;
820 cmd->ibss.ssid_type = WL12XX_SSID_TYPE_ANY;
821 cmd->ibss.ssid_len = wlvif->ssid_len;
822 memcpy(cmd->ibss.ssid, wlvif->ssid, wlvif->ssid_len);
823 memcpy(cmd->ibss.bssid, vif->bss_conf.bssid, ETH_ALEN);
824 cmd->sta.local_rates = cpu_to_le32(wlvif->rate_set);
825
826 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID) {
827 ret = wl12xx_allocate_link(wl, wlvif, &wlvif->sta.hlid);
828 if (ret)
829 goto out_free;
830 }
831 cmd->ibss.hlid = wlvif->sta.hlid;
832 cmd->ibss.remote_rates = cpu_to_le32(wlvif->rate_set);
833
834 wl1271_debug(DEBUG_CMD, "role start: roleid=%d, hlid=%d, session=%d "
835 "basic_rate_set: 0x%x, remote_rates: 0x%x",
836 wlvif->role_id, cmd->sta.hlid, cmd->sta.session,
837 wlvif->basic_rate_set, wlvif->rate_set);
838
839 wl1271_debug(DEBUG_CMD, "vif->bss_conf.bssid = %pM",
840 vif->bss_conf.bssid);
841
842 ret = wl1271_cmd_send(wl, CMD_ROLE_START, cmd, sizeof(*cmd), 0);
843 if (ret < 0) {
844 wl1271_error("failed to initiate cmd role enable");
845 goto err_hlid;
846 }
847
848 goto out_free;
849
850 err_hlid:
851 /* clear links on error. */
852 wl12xx_free_link(wl, wlvif, &wlvif->sta.hlid);
853
854 out_free:
855 kfree(cmd);
856
857 out:
858 return ret;
859 }
860
861
862 /**
863 * send test command to firmware
864 *
865 * @wl: wl struct
866 * @buf: buffer containing the command, with all headers, must work with dma
867 * @len: length of the buffer
868 * @answer: is answer needed
869 */
wl1271_cmd_test(struct wl1271 * wl,void * buf,size_t buf_len,u8 answer)870 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer)
871 {
872 int ret;
873 size_t res_len = 0;
874
875 wl1271_debug(DEBUG_CMD, "cmd test");
876
877 if (answer)
878 res_len = buf_len;
879
880 ret = wl1271_cmd_send(wl, CMD_TEST, buf, buf_len, res_len);
881
882 if (ret < 0) {
883 wl1271_warning("TEST command failed");
884 return ret;
885 }
886
887 return ret;
888 }
889
890 /**
891 * read acx from firmware
892 *
893 * @wl: wl struct
894 * @id: acx id
895 * @buf: buffer for the response, including all headers, must work with dma
896 * @len: length of buf
897 */
wl1271_cmd_interrogate(struct wl1271 * wl,u16 id,void * buf,size_t len)898 int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
899 {
900 struct acx_header *acx = buf;
901 int ret;
902
903 wl1271_debug(DEBUG_CMD, "cmd interrogate");
904
905 acx->id = cpu_to_le16(id);
906
907 /* payload length, does not include any headers */
908 acx->len = cpu_to_le16(len - sizeof(*acx));
909
910 ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
911 if (ret < 0)
912 wl1271_error("INTERROGATE command failed");
913
914 return ret;
915 }
916
917 /**
918 * write acx value to firmware
919 *
920 * @wl: wl struct
921 * @id: acx id
922 * @buf: buffer containing acx, including all headers, must work with dma
923 * @len: length of buf
924 */
wl1271_cmd_configure(struct wl1271 * wl,u16 id,void * buf,size_t len)925 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len)
926 {
927 struct acx_header *acx = buf;
928 int ret;
929
930 wl1271_debug(DEBUG_CMD, "cmd configure (%d)", id);
931
932 acx->id = cpu_to_le16(id);
933
934 /* payload length, does not include any headers */
935 acx->len = cpu_to_le16(len - sizeof(*acx));
936
937 ret = wl1271_cmd_send(wl, CMD_CONFIGURE, acx, len, 0);
938 if (ret < 0) {
939 wl1271_warning("CONFIGURE command NOK");
940 return ret;
941 }
942
943 return 0;
944 }
945
wl1271_cmd_data_path(struct wl1271 * wl,bool enable)946 int wl1271_cmd_data_path(struct wl1271 *wl, bool enable)
947 {
948 struct cmd_enabledisable_path *cmd;
949 int ret;
950 u16 cmd_rx, cmd_tx;
951
952 wl1271_debug(DEBUG_CMD, "cmd data path");
953
954 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
955 if (!cmd) {
956 ret = -ENOMEM;
957 goto out;
958 }
959
960 /* the channel here is only used for calibration, so hardcoded to 1 */
961 cmd->channel = 1;
962
963 if (enable) {
964 cmd_rx = CMD_ENABLE_RX;
965 cmd_tx = CMD_ENABLE_TX;
966 } else {
967 cmd_rx = CMD_DISABLE_RX;
968 cmd_tx = CMD_DISABLE_TX;
969 }
970
971 ret = wl1271_cmd_send(wl, cmd_rx, cmd, sizeof(*cmd), 0);
972 if (ret < 0) {
973 wl1271_error("rx %s cmd for channel %d failed",
974 enable ? "start" : "stop", cmd->channel);
975 goto out;
976 }
977
978 wl1271_debug(DEBUG_BOOT, "rx %s cmd channel %d",
979 enable ? "start" : "stop", cmd->channel);
980
981 ret = wl1271_cmd_send(wl, cmd_tx, cmd, sizeof(*cmd), 0);
982 if (ret < 0) {
983 wl1271_error("tx %s cmd for channel %d failed",
984 enable ? "start" : "stop", cmd->channel);
985 goto out;
986 }
987
988 wl1271_debug(DEBUG_BOOT, "tx %s cmd channel %d",
989 enable ? "start" : "stop", cmd->channel);
990
991 out:
992 kfree(cmd);
993 return ret;
994 }
995
wl1271_cmd_ps_mode(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 ps_mode)996 int wl1271_cmd_ps_mode(struct wl1271 *wl, struct wl12xx_vif *wlvif,
997 u8 ps_mode)
998 {
999 struct wl1271_cmd_ps_params *ps_params = NULL;
1000 int ret = 0;
1001
1002 wl1271_debug(DEBUG_CMD, "cmd set ps mode");
1003
1004 ps_params = kzalloc(sizeof(*ps_params), GFP_KERNEL);
1005 if (!ps_params) {
1006 ret = -ENOMEM;
1007 goto out;
1008 }
1009
1010 ps_params->role_id = wlvif->role_id;
1011 ps_params->ps_mode = ps_mode;
1012
1013 ret = wl1271_cmd_send(wl, CMD_SET_PS_MODE, ps_params,
1014 sizeof(*ps_params), 0);
1015 if (ret < 0) {
1016 wl1271_error("cmd set_ps_mode failed");
1017 goto out;
1018 }
1019
1020 out:
1021 kfree(ps_params);
1022 return ret;
1023 }
1024
wl1271_cmd_template_set(struct wl1271 * wl,u16 template_id,void * buf,size_t buf_len,int index,u32 rates)1025 int wl1271_cmd_template_set(struct wl1271 *wl, u16 template_id,
1026 void *buf, size_t buf_len, int index, u32 rates)
1027 {
1028 struct wl1271_cmd_template_set *cmd;
1029 int ret = 0;
1030
1031 wl1271_debug(DEBUG_CMD, "cmd template_set %d", template_id);
1032
1033 WARN_ON(buf_len > WL1271_CMD_TEMPL_MAX_SIZE);
1034 buf_len = min_t(size_t, buf_len, WL1271_CMD_TEMPL_MAX_SIZE);
1035
1036 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1037 if (!cmd) {
1038 ret = -ENOMEM;
1039 goto out;
1040 }
1041
1042 cmd->len = cpu_to_le16(buf_len);
1043 cmd->template_type = template_id;
1044 cmd->enabled_rates = cpu_to_le32(rates);
1045 cmd->short_retry_limit = wl->conf.tx.tmpl_short_retry_limit;
1046 cmd->long_retry_limit = wl->conf.tx.tmpl_long_retry_limit;
1047 cmd->index = index;
1048
1049 if (buf)
1050 memcpy(cmd->template_data, buf, buf_len);
1051
1052 ret = wl1271_cmd_send(wl, CMD_SET_TEMPLATE, cmd, sizeof(*cmd), 0);
1053 if (ret < 0) {
1054 wl1271_warning("cmd set_template failed: %d", ret);
1055 goto out_free;
1056 }
1057
1058 out_free:
1059 kfree(cmd);
1060
1061 out:
1062 return ret;
1063 }
1064
wl12xx_cmd_build_null_data(struct wl1271 * wl,struct wl12xx_vif * wlvif)1065 int wl12xx_cmd_build_null_data(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1066 {
1067 struct sk_buff *skb = NULL;
1068 int size;
1069 void *ptr;
1070 int ret = -ENOMEM;
1071
1072
1073 if (wlvif->bss_type == BSS_TYPE_IBSS) {
1074 size = sizeof(struct wl12xx_null_data_template);
1075 ptr = NULL;
1076 } else {
1077 skb = ieee80211_nullfunc_get(wl->hw,
1078 wl12xx_wlvif_to_vif(wlvif));
1079 if (!skb)
1080 goto out;
1081 size = skb->len;
1082 ptr = skb->data;
1083 }
1084
1085 ret = wl1271_cmd_template_set(wl, 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 buld 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);
1105 if (!skb)
1106 goto out;
1107
1108 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_KLV,
1109 skb->data, skb->len,
1110 CMD_TEMPL_KLV_IDX_NULL_DATA,
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, CMD_TEMPL_PS_POLL, skb->data,
1134 skb->len, 0, wlvif->basic_rate_set);
1135
1136 out:
1137 dev_kfree_skb(skb);
1138 return ret;
1139 }
1140
wl1271_cmd_build_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,const u8 * ssid,size_t ssid_len,const u8 * ie,size_t ie_len,u8 band)1141 int wl1271_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1142 const u8 *ssid, size_t ssid_len,
1143 const u8 *ie, size_t ie_len, u8 band)
1144 {
1145 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1146 struct sk_buff *skb;
1147 int ret;
1148 u32 rate;
1149
1150 skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
1151 ie, ie_len);
1152 if (!skb) {
1153 ret = -ENOMEM;
1154 goto out;
1155 }
1156
1157 wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
1158
1159 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[band]);
1160 if (band == IEEE80211_BAND_2GHZ)
1161 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
1162 skb->data, skb->len, 0, rate);
1163 else
1164 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
1165 skb->data, skb->len, 0, rate);
1166
1167 out:
1168 dev_kfree_skb(skb);
1169 return ret;
1170 }
1171
wl1271_cmd_build_ap_probe_req(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct sk_buff * skb)1172 struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
1173 struct wl12xx_vif *wlvif,
1174 struct sk_buff *skb)
1175 {
1176 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1177 int ret;
1178 u32 rate;
1179
1180 if (!skb)
1181 skb = ieee80211_ap_probereq_get(wl->hw, vif);
1182 if (!skb)
1183 goto out;
1184
1185 wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
1186
1187 rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
1188 if (wlvif->band == IEEE80211_BAND_2GHZ)
1189 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_2_4,
1190 skb->data, skb->len, 0, rate);
1191 else
1192 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_CFG_PROBE_REQ_5,
1193 skb->data, skb->len, 0, rate);
1194
1195 if (ret < 0)
1196 wl1271_error("Unable to set ap probe request template.");
1197
1198 out:
1199 return skb;
1200 }
1201
wl1271_cmd_build_arp_rsp(struct wl1271 * wl,struct wl12xx_vif * wlvif,__be32 ip_addr)1202 int wl1271_cmd_build_arp_rsp(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1203 __be32 ip_addr)
1204 {
1205 int ret;
1206 struct ieee80211_vif *vif = wl12xx_wlvif_to_vif(wlvif);
1207 struct wl12xx_arp_rsp_template tmpl;
1208 struct ieee80211_hdr_3addr *hdr;
1209 struct arphdr *arp_hdr;
1210
1211 memset(&tmpl, 0, sizeof(tmpl));
1212
1213 /* mac80211 header */
1214 hdr = &tmpl.hdr;
1215 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1216 IEEE80211_STYPE_DATA |
1217 IEEE80211_FCTL_TODS);
1218 memcpy(hdr->addr1, vif->bss_conf.bssid, ETH_ALEN);
1219 memcpy(hdr->addr2, vif->addr, ETH_ALEN);
1220 memset(hdr->addr3, 0xff, ETH_ALEN);
1221
1222 /* llc layer */
1223 memcpy(tmpl.llc_hdr, rfc1042_header, sizeof(rfc1042_header));
1224 tmpl.llc_type = cpu_to_be16(ETH_P_ARP);
1225
1226 /* arp header */
1227 arp_hdr = &tmpl.arp_hdr;
1228 arp_hdr->ar_hrd = cpu_to_be16(ARPHRD_ETHER);
1229 arp_hdr->ar_pro = cpu_to_be16(ETH_P_IP);
1230 arp_hdr->ar_hln = ETH_ALEN;
1231 arp_hdr->ar_pln = 4;
1232 arp_hdr->ar_op = cpu_to_be16(ARPOP_REPLY);
1233
1234 /* arp payload */
1235 memcpy(tmpl.sender_hw, vif->addr, ETH_ALEN);
1236 tmpl.sender_ip = ip_addr;
1237
1238 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_ARP_RSP,
1239 &tmpl, sizeof(tmpl), 0,
1240 wlvif->basic_rate);
1241
1242 return ret;
1243 }
1244
wl1271_build_qos_null_data(struct wl1271 * wl,struct ieee80211_vif * vif)1245 int wl1271_build_qos_null_data(struct wl1271 *wl, struct ieee80211_vif *vif)
1246 {
1247 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1248 struct ieee80211_qos_hdr template;
1249
1250 memset(&template, 0, sizeof(template));
1251
1252 memcpy(template.addr1, vif->bss_conf.bssid, ETH_ALEN);
1253 memcpy(template.addr2, vif->addr, ETH_ALEN);
1254 memcpy(template.addr3, vif->bss_conf.bssid, ETH_ALEN);
1255
1256 template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
1257 IEEE80211_STYPE_QOS_NULLFUNC |
1258 IEEE80211_FCTL_TODS);
1259
1260 /* FIXME: not sure what priority to use here */
1261 template.qos_ctrl = cpu_to_le16(0);
1262
1263 return wl1271_cmd_template_set(wl, CMD_TEMPL_QOS_NULL_DATA, &template,
1264 sizeof(template), 0,
1265 wlvif->basic_rate);
1266 }
1267
wl12xx_cmd_set_default_wep_key(struct wl1271 * wl,u8 id,u8 hlid)1268 int wl12xx_cmd_set_default_wep_key(struct wl1271 *wl, u8 id, u8 hlid)
1269 {
1270 struct wl1271_cmd_set_keys *cmd;
1271 int ret = 0;
1272
1273 wl1271_debug(DEBUG_CMD, "cmd set_default_wep_key %d", id);
1274
1275 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1276 if (!cmd) {
1277 ret = -ENOMEM;
1278 goto out;
1279 }
1280
1281 cmd->hlid = hlid;
1282 cmd->key_id = id;
1283 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1284 cmd->key_action = cpu_to_le16(KEY_SET_ID);
1285 cmd->key_type = KEY_WEP;
1286
1287 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1288 if (ret < 0) {
1289 wl1271_warning("cmd set_default_wep_key failed: %d", ret);
1290 goto out;
1291 }
1292
1293 out:
1294 kfree(cmd);
1295
1296 return ret;
1297 }
1298
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)1299 int wl1271_cmd_set_sta_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1300 u16 action, u8 id, u8 key_type,
1301 u8 key_size, const u8 *key, const u8 *addr,
1302 u32 tx_seq_32, u16 tx_seq_16)
1303 {
1304 struct wl1271_cmd_set_keys *cmd;
1305 int ret = 0;
1306
1307 /* hlid might have already been deleted */
1308 if (wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
1309 return 0;
1310
1311 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1312 if (!cmd) {
1313 ret = -ENOMEM;
1314 goto out;
1315 }
1316
1317 cmd->hlid = wlvif->sta.hlid;
1318
1319 if (key_type == KEY_WEP)
1320 cmd->lid_key_type = WEP_DEFAULT_LID_TYPE;
1321 else if (is_broadcast_ether_addr(addr))
1322 cmd->lid_key_type = BROADCAST_LID_TYPE;
1323 else
1324 cmd->lid_key_type = UNICAST_LID_TYPE;
1325
1326 cmd->key_action = cpu_to_le16(action);
1327 cmd->key_size = key_size;
1328 cmd->key_type = key_type;
1329
1330 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1331 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1332
1333 cmd->key_id = id;
1334
1335 if (key_type == KEY_TKIP) {
1336 /*
1337 * We get the key in the following form:
1338 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1339 * but the target is expecting:
1340 * TKIP - RX MIC - TX MIC
1341 */
1342 memcpy(cmd->key, key, 16);
1343 memcpy(cmd->key + 16, key + 24, 8);
1344 memcpy(cmd->key + 24, key + 16, 8);
1345
1346 } else {
1347 memcpy(cmd->key, key, key_size);
1348 }
1349
1350 wl1271_dump(DEBUG_CRYPT, "TARGET KEY: ", cmd, sizeof(*cmd));
1351
1352 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1353 if (ret < 0) {
1354 wl1271_warning("could not set keys");
1355 goto out;
1356 }
1357
1358 out:
1359 kfree(cmd);
1360
1361 return ret;
1362 }
1363
1364 /*
1365 * TODO: merge with sta/ibss into 1 set_key function.
1366 * note there are slight diffs
1367 */
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)1368 int wl1271_cmd_set_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1369 u16 action, u8 id, u8 key_type,
1370 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
1371 u16 tx_seq_16)
1372 {
1373 struct wl1271_cmd_set_keys *cmd;
1374 int ret = 0;
1375 u8 lid_type;
1376
1377 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1378 if (!cmd)
1379 return -ENOMEM;
1380
1381 if (hlid == wlvif->ap.bcast_hlid) {
1382 if (key_type == KEY_WEP)
1383 lid_type = WEP_DEFAULT_LID_TYPE;
1384 else
1385 lid_type = BROADCAST_LID_TYPE;
1386 } else {
1387 lid_type = UNICAST_LID_TYPE;
1388 }
1389
1390 wl1271_debug(DEBUG_CRYPT, "ap key action: %d id: %d lid: %d type: %d"
1391 " hlid: %d", (int)action, (int)id, (int)lid_type,
1392 (int)key_type, (int)hlid);
1393
1394 cmd->lid_key_type = lid_type;
1395 cmd->hlid = hlid;
1396 cmd->key_action = cpu_to_le16(action);
1397 cmd->key_size = key_size;
1398 cmd->key_type = key_type;
1399 cmd->key_id = id;
1400 cmd->ac_seq_num16[0] = cpu_to_le16(tx_seq_16);
1401 cmd->ac_seq_num32[0] = cpu_to_le32(tx_seq_32);
1402
1403 if (key_type == KEY_TKIP) {
1404 /*
1405 * We get the key in the following form:
1406 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
1407 * but the target is expecting:
1408 * TKIP - RX MIC - TX MIC
1409 */
1410 memcpy(cmd->key, key, 16);
1411 memcpy(cmd->key + 16, key + 24, 8);
1412 memcpy(cmd->key + 24, key + 16, 8);
1413 } else {
1414 memcpy(cmd->key, key, key_size);
1415 }
1416
1417 wl1271_dump(DEBUG_CRYPT, "TARGET AP KEY: ", cmd, sizeof(*cmd));
1418
1419 ret = wl1271_cmd_send(wl, CMD_SET_KEYS, cmd, sizeof(*cmd), 0);
1420 if (ret < 0) {
1421 wl1271_warning("could not set ap keys");
1422 goto out;
1423 }
1424
1425 out:
1426 kfree(cmd);
1427 return ret;
1428 }
1429
wl12xx_cmd_set_peer_state(struct wl1271 * wl,u8 hlid)1430 int wl12xx_cmd_set_peer_state(struct wl1271 *wl, u8 hlid)
1431 {
1432 struct wl12xx_cmd_set_peer_state *cmd;
1433 int ret = 0;
1434
1435 wl1271_debug(DEBUG_CMD, "cmd set peer state (hlid=%d)", hlid);
1436
1437 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1438 if (!cmd) {
1439 ret = -ENOMEM;
1440 goto out;
1441 }
1442
1443 cmd->hlid = hlid;
1444 cmd->state = WL1271_CMD_STA_STATE_CONNECTED;
1445
1446 ret = wl1271_cmd_send(wl, CMD_SET_PEER_STATE, cmd, sizeof(*cmd), 0);
1447 if (ret < 0) {
1448 wl1271_error("failed to send set peer state command");
1449 goto out_free;
1450 }
1451
1452 out_free:
1453 kfree(cmd);
1454
1455 out:
1456 return ret;
1457 }
1458
wl12xx_cmd_add_peer(struct wl1271 * wl,struct wl12xx_vif * wlvif,struct ieee80211_sta * sta,u8 hlid)1459 int wl12xx_cmd_add_peer(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1460 struct ieee80211_sta *sta, u8 hlid)
1461 {
1462 struct wl12xx_cmd_add_peer *cmd;
1463 int i, ret;
1464 u32 sta_rates;
1465
1466 wl1271_debug(DEBUG_CMD, "cmd add peer %d", (int)hlid);
1467
1468 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1469 if (!cmd) {
1470 ret = -ENOMEM;
1471 goto out;
1472 }
1473
1474 memcpy(cmd->addr, sta->addr, ETH_ALEN);
1475 cmd->bss_index = WL1271_AP_BSS_INDEX;
1476 cmd->aid = sta->aid;
1477 cmd->hlid = hlid;
1478 cmd->sp_len = sta->max_sp;
1479 cmd->wmm = sta->wme ? 1 : 0;
1480
1481 for (i = 0; i < NUM_ACCESS_CATEGORIES_COPY; i++)
1482 if (sta->wme && (sta->uapsd_queues & BIT(i)))
1483 cmd->psd_type[i] = WL1271_PSD_UPSD_TRIGGER;
1484 else
1485 cmd->psd_type[i] = WL1271_PSD_LEGACY;
1486
1487 sta_rates = sta->supp_rates[wlvif->band];
1488 if (sta->ht_cap.ht_supported)
1489 sta_rates |= sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET;
1490
1491 cmd->supported_rates =
1492 cpu_to_le32(wl1271_tx_enabled_rates_get(wl, sta_rates,
1493 wlvif->band));
1494
1495 wl1271_debug(DEBUG_CMD, "new peer rates=0x%x queues=0x%x",
1496 cmd->supported_rates, sta->uapsd_queues);
1497
1498 ret = wl1271_cmd_send(wl, CMD_ADD_PEER, cmd, sizeof(*cmd), 0);
1499 if (ret < 0) {
1500 wl1271_error("failed to initiate cmd add peer");
1501 goto out_free;
1502 }
1503
1504 out_free:
1505 kfree(cmd);
1506
1507 out:
1508 return ret;
1509 }
1510
wl12xx_cmd_remove_peer(struct wl1271 * wl,u8 hlid)1511 int wl12xx_cmd_remove_peer(struct wl1271 *wl, u8 hlid)
1512 {
1513 struct wl12xx_cmd_remove_peer *cmd;
1514 int ret;
1515
1516 wl1271_debug(DEBUG_CMD, "cmd remove peer %d", (int)hlid);
1517
1518 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1519 if (!cmd) {
1520 ret = -ENOMEM;
1521 goto out;
1522 }
1523
1524 cmd->hlid = hlid;
1525 /* We never send a deauth, mac80211 is in charge of this */
1526 cmd->reason_opcode = 0;
1527 cmd->send_deauth_flag = 0;
1528
1529 ret = wl1271_cmd_send(wl, CMD_REMOVE_PEER, cmd, sizeof(*cmd), 0);
1530 if (ret < 0) {
1531 wl1271_error("failed to initiate cmd remove peer");
1532 goto out_free;
1533 }
1534
1535 /*
1536 * We are ok with a timeout here. The event is sometimes not sent
1537 * due to a firmware bug.
1538 */
1539 wl1271_cmd_wait_for_event_or_timeout(wl,
1540 PEER_REMOVE_COMPLETE_EVENT_ID);
1541
1542 out_free:
1543 kfree(cmd);
1544
1545 out:
1546 return ret;
1547 }
1548
wl12xx_cmd_config_fwlog(struct wl1271 * wl)1549 int wl12xx_cmd_config_fwlog(struct wl1271 *wl)
1550 {
1551 struct wl12xx_cmd_config_fwlog *cmd;
1552 int ret = 0;
1553
1554 wl1271_debug(DEBUG_CMD, "cmd config firmware logger");
1555
1556 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1557 if (!cmd) {
1558 ret = -ENOMEM;
1559 goto out;
1560 }
1561
1562 cmd->logger_mode = wl->conf.fwlog.mode;
1563 cmd->log_severity = wl->conf.fwlog.severity;
1564 cmd->timestamp = wl->conf.fwlog.timestamp;
1565 cmd->output = wl->conf.fwlog.output;
1566 cmd->threshold = wl->conf.fwlog.threshold;
1567
1568 ret = wl1271_cmd_send(wl, CMD_CONFIG_FWLOGGER, cmd, sizeof(*cmd), 0);
1569 if (ret < 0) {
1570 wl1271_error("failed to send config firmware logger command");
1571 goto out_free;
1572 }
1573
1574 out_free:
1575 kfree(cmd);
1576
1577 out:
1578 return ret;
1579 }
1580
wl12xx_cmd_start_fwlog(struct wl1271 * wl)1581 int wl12xx_cmd_start_fwlog(struct wl1271 *wl)
1582 {
1583 struct wl12xx_cmd_start_fwlog *cmd;
1584 int ret = 0;
1585
1586 wl1271_debug(DEBUG_CMD, "cmd start firmware logger");
1587
1588 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1589 if (!cmd) {
1590 ret = -ENOMEM;
1591 goto out;
1592 }
1593
1594 ret = wl1271_cmd_send(wl, CMD_START_FWLOGGER, cmd, sizeof(*cmd), 0);
1595 if (ret < 0) {
1596 wl1271_error("failed to send start firmware logger command");
1597 goto out_free;
1598 }
1599
1600 out_free:
1601 kfree(cmd);
1602
1603 out:
1604 return ret;
1605 }
1606
wl12xx_cmd_stop_fwlog(struct wl1271 * wl)1607 int wl12xx_cmd_stop_fwlog(struct wl1271 *wl)
1608 {
1609 struct wl12xx_cmd_stop_fwlog *cmd;
1610 int ret = 0;
1611
1612 wl1271_debug(DEBUG_CMD, "cmd stop firmware logger");
1613
1614 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1615 if (!cmd) {
1616 ret = -ENOMEM;
1617 goto out;
1618 }
1619
1620 ret = wl1271_cmd_send(wl, CMD_STOP_FWLOGGER, cmd, sizeof(*cmd), 0);
1621 if (ret < 0) {
1622 wl1271_error("failed to send stop firmware logger command");
1623 goto out_free;
1624 }
1625
1626 out_free:
1627 kfree(cmd);
1628
1629 out:
1630 return ret;
1631 }
1632
wl12xx_cmd_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id)1633 static int wl12xx_cmd_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif,
1634 u8 role_id)
1635 {
1636 struct wl12xx_cmd_roc *cmd;
1637 int ret = 0;
1638
1639 wl1271_debug(DEBUG_CMD, "cmd roc %d (%d)", wlvif->channel, role_id);
1640
1641 if (WARN_ON(role_id == WL12XX_INVALID_ROLE_ID))
1642 return -EINVAL;
1643
1644 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1645 if (!cmd) {
1646 ret = -ENOMEM;
1647 goto out;
1648 }
1649
1650 cmd->role_id = role_id;
1651 cmd->channel = wlvif->channel;
1652 switch (wlvif->band) {
1653 case IEEE80211_BAND_2GHZ:
1654 cmd->band = RADIO_BAND_2_4GHZ;
1655 break;
1656 case IEEE80211_BAND_5GHZ:
1657 cmd->band = RADIO_BAND_5GHZ;
1658 break;
1659 default:
1660 wl1271_error("roc - unknown band: %d", (int)wlvif->band);
1661 ret = -EINVAL;
1662 goto out_free;
1663 }
1664
1665
1666 ret = wl1271_cmd_send(wl, CMD_REMAIN_ON_CHANNEL, cmd, sizeof(*cmd), 0);
1667 if (ret < 0) {
1668 wl1271_error("failed to send ROC command");
1669 goto out_free;
1670 }
1671
1672 out_free:
1673 kfree(cmd);
1674
1675 out:
1676 return ret;
1677 }
1678
wl12xx_cmd_croc(struct wl1271 * wl,u8 role_id)1679 static int wl12xx_cmd_croc(struct wl1271 *wl, u8 role_id)
1680 {
1681 struct wl12xx_cmd_croc *cmd;
1682 int ret = 0;
1683
1684 wl1271_debug(DEBUG_CMD, "cmd croc (%d)", role_id);
1685
1686 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1687 if (!cmd) {
1688 ret = -ENOMEM;
1689 goto out;
1690 }
1691 cmd->role_id = role_id;
1692
1693 ret = wl1271_cmd_send(wl, CMD_CANCEL_REMAIN_ON_CHANNEL, cmd,
1694 sizeof(*cmd), 0);
1695 if (ret < 0) {
1696 wl1271_error("failed to send ROC command");
1697 goto out_free;
1698 }
1699
1700 out_free:
1701 kfree(cmd);
1702
1703 out:
1704 return ret;
1705 }
1706
wl12xx_roc(struct wl1271 * wl,struct wl12xx_vif * wlvif,u8 role_id)1707 int wl12xx_roc(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 role_id)
1708 {
1709 int ret = 0;
1710
1711 if (WARN_ON(test_bit(role_id, wl->roc_map)))
1712 return 0;
1713
1714 ret = wl12xx_cmd_roc(wl, wlvif, role_id);
1715 if (ret < 0)
1716 goto out;
1717
1718 ret = wl1271_cmd_wait_for_event(wl,
1719 REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID);
1720 if (ret < 0) {
1721 wl1271_error("cmd roc event completion error");
1722 goto out;
1723 }
1724
1725 __set_bit(role_id, wl->roc_map);
1726 out:
1727 return ret;
1728 }
1729
wl12xx_croc(struct wl1271 * wl,u8 role_id)1730 int wl12xx_croc(struct wl1271 *wl, u8 role_id)
1731 {
1732 int ret = 0;
1733
1734 if (WARN_ON(!test_bit(role_id, wl->roc_map)))
1735 return 0;
1736
1737 ret = wl12xx_cmd_croc(wl, role_id);
1738 if (ret < 0)
1739 goto out;
1740
1741 __clear_bit(role_id, wl->roc_map);
1742 out:
1743 return ret;
1744 }
1745
wl12xx_cmd_channel_switch(struct wl1271 * wl,struct ieee80211_channel_switch * ch_switch)1746 int wl12xx_cmd_channel_switch(struct wl1271 *wl,
1747 struct ieee80211_channel_switch *ch_switch)
1748 {
1749 struct wl12xx_cmd_channel_switch *cmd;
1750 int ret;
1751
1752 wl1271_debug(DEBUG_ACX, "cmd channel switch");
1753
1754 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1755 if (!cmd) {
1756 ret = -ENOMEM;
1757 goto out;
1758 }
1759
1760 cmd->channel = ch_switch->channel->hw_value;
1761 cmd->switch_time = ch_switch->count;
1762 cmd->tx_suspend = ch_switch->block_tx;
1763 cmd->flush = 0; /* this value is ignored by the FW */
1764
1765 ret = wl1271_cmd_send(wl, CMD_CHANNEL_SWITCH, cmd, sizeof(*cmd), 0);
1766 if (ret < 0) {
1767 wl1271_error("failed to send channel switch command");
1768 goto out_free;
1769 }
1770
1771 out_free:
1772 kfree(cmd);
1773
1774 out:
1775 return ret;
1776 }
1777
wl12xx_cmd_stop_channel_switch(struct wl1271 * wl)1778 int wl12xx_cmd_stop_channel_switch(struct wl1271 *wl)
1779 {
1780 struct wl12xx_cmd_stop_channel_switch *cmd;
1781 int ret;
1782
1783 wl1271_debug(DEBUG_ACX, "cmd stop channel switch");
1784
1785 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1786 if (!cmd) {
1787 ret = -ENOMEM;
1788 goto out;
1789 }
1790
1791 ret = wl1271_cmd_send(wl, CMD_STOP_CHANNEL_SWICTH, cmd, sizeof(*cmd), 0);
1792 if (ret < 0) {
1793 wl1271_error("failed to stop channel switch command");
1794 goto out_free;
1795 }
1796
1797 out_free:
1798 kfree(cmd);
1799
1800 out:
1801 return ret;
1802 }
1803
1804 /* start dev role and roc on its channel */
wl12xx_start_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)1805 int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1806 {
1807 int ret;
1808
1809 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1810 wlvif->bss_type == BSS_TYPE_IBSS)))
1811 return -EINVAL;
1812
1813 ret = wl12xx_cmd_role_start_dev(wl, wlvif);
1814 if (ret < 0)
1815 goto out;
1816
1817 ret = wl12xx_roc(wl, wlvif, wlvif->dev_role_id);
1818 if (ret < 0)
1819 goto out_stop;
1820
1821 return 0;
1822
1823 out_stop:
1824 wl12xx_cmd_role_stop_dev(wl, wlvif);
1825 out:
1826 return ret;
1827 }
1828
1829 /* croc dev hlid, and stop the role */
wl12xx_stop_dev(struct wl1271 * wl,struct wl12xx_vif * wlvif)1830 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif)
1831 {
1832 int ret;
1833
1834 if (WARN_ON(!(wlvif->bss_type == BSS_TYPE_STA_BSS ||
1835 wlvif->bss_type == BSS_TYPE_IBSS)))
1836 return -EINVAL;
1837
1838 /* flush all pending packets */
1839 wl1271_tx_work_locked(wl);
1840
1841 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
1842 ret = wl12xx_croc(wl, wlvif->dev_role_id);
1843 if (ret < 0)
1844 goto out;
1845 }
1846
1847 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
1848 if (ret < 0)
1849 goto out;
1850 out:
1851 return ret;
1852 }
1853