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cfg80211: pass wiphy to cfg80211_ref_bss/put_bss
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22
23 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
24 {
25 .max = 2, .types = BIT(NL80211_IFTYPE_STATION),
26 },
27 {
28 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
29 },
30 };
31
32 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
33 .limits = mwifiex_ap_sta_limits,
34 .num_different_channels = 1,
35 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
36 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
37 .beacon_int_infra_match = true,
38 };
39
40 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
41 .n_reg_rules = 7,
42 .alpha2 = "99",
43 .reg_rules = {
44 /* Channel 1 - 11 */
45 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
46 /* Channel 12 - 13 */
47 REG_RULE(2467-10, 2472+10, 20, 3, 20,
48 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
49 /* Channel 14 */
50 REG_RULE(2484-10, 2484+10, 20, 3, 20,
51 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
52 NL80211_RRF_NO_OFDM),
53 /* Channel 36 - 48 */
54 REG_RULE(5180-10, 5240+10, 40, 3, 20,
55 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
56 /* Channel 149 - 165 */
57 REG_RULE(5745-10, 5825+10, 40, 3, 20,
58 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
59 /* Channel 52 - 64 */
60 REG_RULE(5260-10, 5320+10, 40, 3, 30,
61 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
62 NL80211_RRF_DFS),
63 /* Channel 100 - 140 */
64 REG_RULE(5500-10, 5700+10, 40, 3, 30,
65 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
66 NL80211_RRF_DFS),
67 }
68 };
69
70 /*
71 * This function maps the nl802.11 channel type into driver channel type.
72 *
73 * The mapping is as follows -
74 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
75 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
76 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
77 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
78 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
79 */
80 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
81 {
82 switch (chan_type) {
83 case NL80211_CHAN_NO_HT:
84 case NL80211_CHAN_HT20:
85 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
86 case NL80211_CHAN_HT40PLUS:
87 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
88 case NL80211_CHAN_HT40MINUS:
89 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
90 default:
91 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
92 }
93 }
94
95 /*
96 * This function checks whether WEP is set.
97 */
98 static int
99 mwifiex_is_alg_wep(u32 cipher)
100 {
101 switch (cipher) {
102 case WLAN_CIPHER_SUITE_WEP40:
103 case WLAN_CIPHER_SUITE_WEP104:
104 return 1;
105 default:
106 break;
107 }
108
109 return 0;
110 }
111
112 /*
113 * This function retrieves the private structure from kernel wiphy structure.
114 */
115 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
116 {
117 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
118 }
119
120 /*
121 * CFG802.11 operation handler to delete a network key.
122 */
123 static int
124 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
125 u8 key_index, bool pairwise, const u8 *mac_addr)
126 {
127 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
128 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
129 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
130
131 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
132 wiphy_err(wiphy, "deleting the crypto keys\n");
133 return -EFAULT;
134 }
135
136 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
137 return 0;
138 }
139
140 /*
141 * This function forms an skb for management frame.
142 */
143 static int
144 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
145 {
146 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
147 u16 pkt_len;
148 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
149 struct timeval tv;
150
151 pkt_len = len + ETH_ALEN;
152
153 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
154 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
155 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
156
157 memcpy(skb_push(skb, sizeof(tx_control)),
158 &tx_control, sizeof(tx_control));
159
160 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
161
162 /* Add packet data and address4 */
163 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
164 sizeof(struct ieee80211_hdr_3addr));
165 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
166 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
167 buf + sizeof(struct ieee80211_hdr_3addr),
168 len - sizeof(struct ieee80211_hdr_3addr));
169
170 skb->priority = LOW_PRIO_TID;
171 do_gettimeofday(&tv);
172 skb->tstamp = timeval_to_ktime(tv);
173
174 return 0;
175 }
176
177 /*
178 * CFG802.11 operation handler to transmit a management frame.
179 */
180 static int
181 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
182 struct ieee80211_channel *chan, bool offchan,
183 unsigned int wait, const u8 *buf, size_t len,
184 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
185 {
186 struct sk_buff *skb;
187 u16 pkt_len;
188 const struct ieee80211_mgmt *mgmt;
189 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
190
191 if (!buf || !len) {
192 wiphy_err(wiphy, "invalid buffer and length\n");
193 return -EFAULT;
194 }
195
196 mgmt = (const struct ieee80211_mgmt *)buf;
197 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
198 ieee80211_is_probe_resp(mgmt->frame_control)) {
199 /* Since we support offload probe resp, we need to skip probe
200 * resp in AP or GO mode */
201 wiphy_dbg(wiphy,
202 "info: skip to send probe resp in AP or GO mode\n");
203 return 0;
204 }
205
206 pkt_len = len + ETH_ALEN;
207 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
208 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
209 pkt_len + sizeof(pkt_len));
210
211 if (!skb) {
212 wiphy_err(wiphy, "allocate skb failed for management frame\n");
213 return -ENOMEM;
214 }
215
216 mwifiex_form_mgmt_frame(skb, buf, len);
217 mwifiex_queue_tx_pkt(priv, skb);
218
219 *cookie = random32() | 1;
220 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
221
222 wiphy_dbg(wiphy, "info: management frame transmitted\n");
223 return 0;
224 }
225
226 /*
227 * CFG802.11 operation handler to register a mgmt frame.
228 */
229 static void
230 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
231 struct wireless_dev *wdev,
232 u16 frame_type, bool reg)
233 {
234 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
235
236 if (reg)
237 priv->mgmt_frame_mask |= BIT(frame_type >> 4);
238 else
239 priv->mgmt_frame_mask &= ~BIT(frame_type >> 4);
240
241 mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
242 HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask);
243
244 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
245 }
246
247 /*
248 * CFG802.11 operation handler to remain on channel.
249 */
250 static int
251 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
252 struct wireless_dev *wdev,
253 struct ieee80211_channel *chan,
254 unsigned int duration, u64 *cookie)
255 {
256 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
257 int ret;
258
259 if (!chan || !cookie) {
260 wiphy_err(wiphy, "Invalid parameter for ROC\n");
261 return -EINVAL;
262 }
263
264 if (priv->roc_cfg.cookie) {
265 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
266 priv->roc_cfg.cookie);
267 return -EBUSY;
268 }
269
270 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
271 duration);
272
273 if (!ret) {
274 *cookie = random32() | 1;
275 priv->roc_cfg.cookie = *cookie;
276 priv->roc_cfg.chan = *chan;
277
278 cfg80211_ready_on_channel(wdev, *cookie, chan,
279 duration, GFP_ATOMIC);
280
281 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
282 }
283
284 return ret;
285 }
286
287 /*
288 * CFG802.11 operation handler to cancel remain on channel.
289 */
290 static int
291 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
292 struct wireless_dev *wdev, u64 cookie)
293 {
294 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
295 int ret;
296
297 if (cookie != priv->roc_cfg.cookie)
298 return -ENOENT;
299
300 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
301 &priv->roc_cfg.chan, 0);
302
303 if (!ret) {
304 cfg80211_remain_on_channel_expired(wdev, cookie,
305 &priv->roc_cfg.chan,
306 GFP_ATOMIC);
307
308 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
309
310 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
311 }
312
313 return ret;
314 }
315
316 /*
317 * CFG802.11 operation handler to set Tx power.
318 */
319 static int
320 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
321 struct wireless_dev *wdev,
322 enum nl80211_tx_power_setting type,
323 int mbm)
324 {
325 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
326 struct mwifiex_private *priv;
327 struct mwifiex_power_cfg power_cfg;
328 int dbm = MBM_TO_DBM(mbm);
329
330 if (type == NL80211_TX_POWER_FIXED) {
331 power_cfg.is_power_auto = 0;
332 power_cfg.power_level = dbm;
333 } else {
334 power_cfg.is_power_auto = 1;
335 }
336
337 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
338
339 return mwifiex_set_tx_power(priv, &power_cfg);
340 }
341
342 /*
343 * CFG802.11 operation handler to set Power Save option.
344 *
345 * The timeout value, if provided, is currently ignored.
346 */
347 static int
348 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
349 struct net_device *dev,
350 bool enabled, int timeout)
351 {
352 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
353 u32 ps_mode;
354
355 if (timeout)
356 wiphy_dbg(wiphy,
357 "info: ignore timeout value for IEEE Power Save\n");
358
359 ps_mode = enabled;
360
361 return mwifiex_drv_set_power(priv, &ps_mode);
362 }
363
364 /*
365 * CFG802.11 operation handler to set the default network key.
366 */
367 static int
368 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
369 u8 key_index, bool unicast,
370 bool multicast)
371 {
372 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
373
374 /* Return if WEP key not configured */
375 if (!priv->sec_info.wep_enabled)
376 return 0;
377
378 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
379 priv->wep_key_curr_index = key_index;
380 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
381 NULL, 0)) {
382 wiphy_err(wiphy, "set default Tx key index\n");
383 return -EFAULT;
384 }
385
386 return 0;
387 }
388
389 /*
390 * CFG802.11 operation handler to add a network key.
391 */
392 static int
393 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
394 u8 key_index, bool pairwise, const u8 *mac_addr,
395 struct key_params *params)
396 {
397 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
398 struct mwifiex_wep_key *wep_key;
399 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
400 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
401
402 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
403 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
404 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
405 if (params->key && params->key_len) {
406 wep_key = &priv->wep_key[key_index];
407 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
408 memcpy(wep_key->key_material, params->key,
409 params->key_len);
410 wep_key->key_index = key_index;
411 wep_key->key_length = params->key_len;
412 priv->sec_info.wep_enabled = 1;
413 }
414 return 0;
415 }
416
417 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
418 key_index, peer_mac, 0)) {
419 wiphy_err(wiphy, "crypto keys added\n");
420 return -EFAULT;
421 }
422
423 return 0;
424 }
425
426 /*
427 * This function sends domain information to the firmware.
428 *
429 * The following information are passed to the firmware -
430 * - Country codes
431 * - Sub bands (first channel, number of channels, maximum Tx power)
432 */
433 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
434 {
435 u8 no_of_triplet = 0;
436 struct ieee80211_country_ie_triplet *t;
437 u8 no_of_parsed_chan = 0;
438 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
439 u8 i, flag = 0;
440 enum ieee80211_band band;
441 struct ieee80211_supported_band *sband;
442 struct ieee80211_channel *ch;
443 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
444 struct mwifiex_private *priv;
445 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
446
447 /* Set country code */
448 domain_info->country_code[0] = adapter->country_code[0];
449 domain_info->country_code[1] = adapter->country_code[1];
450 domain_info->country_code[2] = ' ';
451
452 band = mwifiex_band_to_radio_type(adapter->config_bands);
453 if (!wiphy->bands[band]) {
454 wiphy_err(wiphy, "11D: setting domain info in FW\n");
455 return -1;
456 }
457
458 sband = wiphy->bands[band];
459
460 for (i = 0; i < sband->n_channels ; i++) {
461 ch = &sband->channels[i];
462 if (ch->flags & IEEE80211_CHAN_DISABLED)
463 continue;
464
465 if (!flag) {
466 flag = 1;
467 first_chan = (u32) ch->hw_value;
468 next_chan = first_chan;
469 max_pwr = ch->max_power;
470 no_of_parsed_chan = 1;
471 continue;
472 }
473
474 if (ch->hw_value == next_chan + 1 &&
475 ch->max_power == max_pwr) {
476 next_chan++;
477 no_of_parsed_chan++;
478 } else {
479 t = &domain_info->triplet[no_of_triplet];
480 t->chans.first_channel = first_chan;
481 t->chans.num_channels = no_of_parsed_chan;
482 t->chans.max_power = max_pwr;
483 no_of_triplet++;
484 first_chan = (u32) ch->hw_value;
485 next_chan = first_chan;
486 max_pwr = ch->max_power;
487 no_of_parsed_chan = 1;
488 }
489 }
490
491 if (flag) {
492 t = &domain_info->triplet[no_of_triplet];
493 t->chans.first_channel = first_chan;
494 t->chans.num_channels = no_of_parsed_chan;
495 t->chans.max_power = max_pwr;
496 no_of_triplet++;
497 }
498
499 domain_info->no_of_triplet = no_of_triplet;
500
501 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
502
503 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
504 HostCmd_ACT_GEN_SET, 0, NULL)) {
505 wiphy_err(wiphy, "11D: setting domain info in FW\n");
506 return -1;
507 }
508
509 return 0;
510 }
511
512 /*
513 * CFG802.11 regulatory domain callback function.
514 *
515 * This function is called when the regulatory domain is changed due to the
516 * following reasons -
517 * - Set by driver
518 * - Set by system core
519 * - Set by user
520 * - Set bt Country IE
521 */
522 static void mwifiex_reg_notifier(struct wiphy *wiphy,
523 struct regulatory_request *request)
524 {
525 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
526
527 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
528 request->alpha2[0], request->alpha2[1]);
529
530 memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
531
532 switch (request->initiator) {
533 case NL80211_REGDOM_SET_BY_DRIVER:
534 case NL80211_REGDOM_SET_BY_CORE:
535 case NL80211_REGDOM_SET_BY_USER:
536 break;
537 /* Todo: apply driver specific changes in channel flags based
538 on the request initiator if necessary. */
539 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
540 break;
541 }
542 mwifiex_send_domain_info_cmd_fw(wiphy);
543 }
544
545 /*
546 * This function sets the fragmentation threshold.
547 *
548 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
549 * and MWIFIEX_FRAG_MAX_VALUE.
550 */
551 static int
552 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
553 {
554 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
555 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
556 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
557
558 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
559 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
560 &frag_thr);
561 }
562
563 /*
564 * This function sets the RTS threshold.
565
566 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
567 * and MWIFIEX_RTS_MAX_VALUE.
568 */
569 static int
570 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
571 {
572 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
573 rts_thr = MWIFIEX_RTS_MAX_VALUE;
574
575 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
576 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
577 &rts_thr);
578 }
579
580 /*
581 * CFG802.11 operation handler to set wiphy parameters.
582 *
583 * This function can be used to set the RTS threshold and the
584 * Fragmentation threshold of the driver.
585 */
586 static int
587 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
588 {
589 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
590 struct mwifiex_private *priv;
591 struct mwifiex_uap_bss_param *bss_cfg;
592 int ret, bss_started, i;
593
594 for (i = 0; i < adapter->priv_num; i++) {
595 priv = adapter->priv[i];
596
597 switch (priv->bss_role) {
598 case MWIFIEX_BSS_ROLE_UAP:
599 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
600 GFP_KERNEL);
601 if (!bss_cfg)
602 return -ENOMEM;
603
604 mwifiex_set_sys_config_invalid_data(bss_cfg);
605
606 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
607 bss_cfg->rts_threshold = wiphy->rts_threshold;
608 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
609 bss_cfg->frag_threshold = wiphy->frag_threshold;
610 if (changed & WIPHY_PARAM_RETRY_LONG)
611 bss_cfg->retry_limit = wiphy->retry_long;
612
613 bss_started = priv->bss_started;
614
615 ret = mwifiex_send_cmd_sync(priv,
616 HostCmd_CMD_UAP_BSS_STOP,
617 HostCmd_ACT_GEN_SET, 0,
618 NULL);
619 if (ret) {
620 wiphy_err(wiphy, "Failed to stop the BSS\n");
621 kfree(bss_cfg);
622 return ret;
623 }
624
625 ret = mwifiex_send_cmd_async(priv,
626 HostCmd_CMD_UAP_SYS_CONFIG,
627 HostCmd_ACT_GEN_SET,
628 UAP_BSS_PARAMS_I, bss_cfg);
629
630 kfree(bss_cfg);
631
632 if (ret) {
633 wiphy_err(wiphy, "Failed to set bss config\n");
634 return ret;
635 }
636
637 if (!bss_started)
638 break;
639
640 ret = mwifiex_send_cmd_async(priv,
641 HostCmd_CMD_UAP_BSS_START,
642 HostCmd_ACT_GEN_SET, 0,
643 NULL);
644 if (ret) {
645 wiphy_err(wiphy, "Failed to start BSS\n");
646 return ret;
647 }
648
649 break;
650 case MWIFIEX_BSS_ROLE_STA:
651 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
652 ret = mwifiex_set_rts(priv,
653 wiphy->rts_threshold);
654 if (ret)
655 return ret;
656 }
657 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
658 ret = mwifiex_set_frag(priv,
659 wiphy->frag_threshold);
660 if (ret)
661 return ret;
662 }
663 break;
664 }
665 }
666
667 return 0;
668 }
669
670 static int
671 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
672 {
673 u16 mode = P2P_MODE_DISABLE;
674
675 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
676 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
677
678 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
679 HostCmd_ACT_GEN_SET, 0, &mode))
680 return -1;
681
682 return 0;
683 }
684
685 /*
686 * This function initializes the functionalities for P2P client.
687 * The P2P client initialization sequence is:
688 * disable -> device -> client
689 */
690 static int
691 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
692 {
693 u16 mode;
694
695 if (mwifiex_cfg80211_deinit_p2p(priv))
696 return -1;
697
698 mode = P2P_MODE_DEVICE;
699 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
700 HostCmd_ACT_GEN_SET, 0, &mode))
701 return -1;
702
703 mode = P2P_MODE_CLIENT;
704 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
705 HostCmd_ACT_GEN_SET, 0, &mode))
706 return -1;
707
708 return 0;
709 }
710
711 /*
712 * This function initializes the functionalities for P2P GO.
713 * The P2P GO initialization sequence is:
714 * disable -> device -> GO
715 */
716 static int
717 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
718 {
719 u16 mode;
720
721 if (mwifiex_cfg80211_deinit_p2p(priv))
722 return -1;
723
724 mode = P2P_MODE_DEVICE;
725 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
726 HostCmd_ACT_GEN_SET, 0, &mode))
727 return -1;
728
729 mode = P2P_MODE_GO;
730 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
731 HostCmd_ACT_GEN_SET, 0, &mode))
732 return -1;
733
734 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
735 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
736
737 return 0;
738 }
739
740 /*
741 * CFG802.11 operation handler to change interface type.
742 */
743 static int
744 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
745 struct net_device *dev,
746 enum nl80211_iftype type, u32 *flags,
747 struct vif_params *params)
748 {
749 int ret;
750 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
751
752 switch (dev->ieee80211_ptr->iftype) {
753 case NL80211_IFTYPE_ADHOC:
754 switch (type) {
755 case NL80211_IFTYPE_STATION:
756 break;
757 case NL80211_IFTYPE_UNSPECIFIED:
758 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
759 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
760 return 0;
761 case NL80211_IFTYPE_AP:
762 default:
763 wiphy_err(wiphy, "%s: changing to %d not supported\n",
764 dev->name, type);
765 return -EOPNOTSUPP;
766 }
767 break;
768 case NL80211_IFTYPE_STATION:
769 switch (type) {
770 case NL80211_IFTYPE_ADHOC:
771 break;
772 case NL80211_IFTYPE_P2P_CLIENT:
773 if (mwifiex_cfg80211_init_p2p_client(priv))
774 return -EFAULT;
775 dev->ieee80211_ptr->iftype = type;
776 return 0;
777 case NL80211_IFTYPE_P2P_GO:
778 if (mwifiex_cfg80211_init_p2p_go(priv))
779 return -EFAULT;
780 dev->ieee80211_ptr->iftype = type;
781 return 0;
782 case NL80211_IFTYPE_UNSPECIFIED:
783 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
784 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
785 return 0;
786 case NL80211_IFTYPE_AP:
787 default:
788 wiphy_err(wiphy, "%s: changing to %d not supported\n",
789 dev->name, type);
790 return -EOPNOTSUPP;
791 }
792 break;
793 case NL80211_IFTYPE_AP:
794 switch (type) {
795 case NL80211_IFTYPE_UNSPECIFIED:
796 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
797 case NL80211_IFTYPE_AP: /* This shouldn't happen */
798 return 0;
799 case NL80211_IFTYPE_ADHOC:
800 case NL80211_IFTYPE_STATION:
801 default:
802 wiphy_err(wiphy, "%s: changing to %d not supported\n",
803 dev->name, type);
804 return -EOPNOTSUPP;
805 }
806 break;
807 case NL80211_IFTYPE_P2P_CLIENT:
808 case NL80211_IFTYPE_P2P_GO:
809 switch (type) {
810 case NL80211_IFTYPE_STATION:
811 if (mwifiex_cfg80211_deinit_p2p(priv))
812 return -EFAULT;
813 dev->ieee80211_ptr->iftype = type;
814 return 0;
815 default:
816 return -EOPNOTSUPP;
817 }
818 break;
819 default:
820 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
821 dev->name, dev->ieee80211_ptr->iftype);
822 return -EOPNOTSUPP;
823 }
824
825 dev->ieee80211_ptr->iftype = type;
826 priv->bss_mode = type;
827 mwifiex_deauthenticate(priv, NULL);
828
829 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
830
831 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
832 HostCmd_ACT_GEN_SET, 0, NULL);
833
834 return ret;
835 }
836
837 /*
838 * This function dumps the station information on a buffer.
839 *
840 * The following information are shown -
841 * - Total bytes transmitted
842 * - Total bytes received
843 * - Total packets transmitted
844 * - Total packets received
845 * - Signal quality level
846 * - Transmission rate
847 */
848 static int
849 mwifiex_dump_station_info(struct mwifiex_private *priv,
850 struct station_info *sinfo)
851 {
852 u32 rate;
853
854 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
855 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
856 STATION_INFO_TX_BITRATE |
857 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
858
859 /* Get signal information from the firmware */
860 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
861 HostCmd_ACT_GEN_GET, 0, NULL)) {
862 dev_err(priv->adapter->dev, "failed to get signal information\n");
863 return -EFAULT;
864 }
865
866 if (mwifiex_drv_get_data_rate(priv, &rate)) {
867 dev_err(priv->adapter->dev, "getting data rate\n");
868 return -EFAULT;
869 }
870
871 /* Get DTIM period information from firmware */
872 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
873 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
874 &priv->dtim_period);
875
876 /*
877 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
878 * MCS index values for us are 0 to 15.
879 */
880 if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
881 sinfo->txrate.mcs = priv->tx_rate;
882 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
883 /* 40MHz rate */
884 if (priv->tx_htinfo & BIT(1))
885 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
886 /* SGI enabled */
887 if (priv->tx_htinfo & BIT(2))
888 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
889 }
890
891 sinfo->signal_avg = priv->bcn_rssi_avg;
892 sinfo->rx_bytes = priv->stats.rx_bytes;
893 sinfo->tx_bytes = priv->stats.tx_bytes;
894 sinfo->rx_packets = priv->stats.rx_packets;
895 sinfo->tx_packets = priv->stats.tx_packets;
896 sinfo->signal = priv->bcn_rssi_avg;
897 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
898 sinfo->txrate.legacy = rate * 5;
899
900 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
901 sinfo->filled |= STATION_INFO_BSS_PARAM;
902 sinfo->bss_param.flags = 0;
903 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
904 WLAN_CAPABILITY_SHORT_PREAMBLE)
905 sinfo->bss_param.flags |=
906 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
907 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
908 WLAN_CAPABILITY_SHORT_SLOT_TIME)
909 sinfo->bss_param.flags |=
910 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
911 sinfo->bss_param.dtim_period = priv->dtim_period;
912 sinfo->bss_param.beacon_interval =
913 priv->curr_bss_params.bss_descriptor.beacon_period;
914 }
915
916 return 0;
917 }
918
919 /*
920 * CFG802.11 operation handler to get station information.
921 *
922 * This function only works in connected mode, and dumps the
923 * requested station information, if available.
924 */
925 static int
926 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
927 u8 *mac, struct station_info *sinfo)
928 {
929 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
930
931 if (!priv->media_connected)
932 return -ENOENT;
933 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
934 return -ENOENT;
935
936 return mwifiex_dump_station_info(priv, sinfo);
937 }
938
939 /*
940 * CFG802.11 operation handler to dump station information.
941 */
942 static int
943 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
944 int idx, u8 *mac, struct station_info *sinfo)
945 {
946 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
947
948 if (!priv->media_connected || idx)
949 return -ENOENT;
950
951 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
952
953 return mwifiex_dump_station_info(priv, sinfo);
954 }
955
956 /* Supported rates to be advertised to the cfg80211 */
957 static struct ieee80211_rate mwifiex_rates[] = {
958 {.bitrate = 10, .hw_value = 2, },
959 {.bitrate = 20, .hw_value = 4, },
960 {.bitrate = 55, .hw_value = 11, },
961 {.bitrate = 110, .hw_value = 22, },
962 {.bitrate = 60, .hw_value = 12, },
963 {.bitrate = 90, .hw_value = 18, },
964 {.bitrate = 120, .hw_value = 24, },
965 {.bitrate = 180, .hw_value = 36, },
966 {.bitrate = 240, .hw_value = 48, },
967 {.bitrate = 360, .hw_value = 72, },
968 {.bitrate = 480, .hw_value = 96, },
969 {.bitrate = 540, .hw_value = 108, },
970 };
971
972 /* Channel definitions to be advertised to cfg80211 */
973 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
974 {.center_freq = 2412, .hw_value = 1, },
975 {.center_freq = 2417, .hw_value = 2, },
976 {.center_freq = 2422, .hw_value = 3, },
977 {.center_freq = 2427, .hw_value = 4, },
978 {.center_freq = 2432, .hw_value = 5, },
979 {.center_freq = 2437, .hw_value = 6, },
980 {.center_freq = 2442, .hw_value = 7, },
981 {.center_freq = 2447, .hw_value = 8, },
982 {.center_freq = 2452, .hw_value = 9, },
983 {.center_freq = 2457, .hw_value = 10, },
984 {.center_freq = 2462, .hw_value = 11, },
985 {.center_freq = 2467, .hw_value = 12, },
986 {.center_freq = 2472, .hw_value = 13, },
987 {.center_freq = 2484, .hw_value = 14, },
988 };
989
990 static struct ieee80211_supported_band mwifiex_band_2ghz = {
991 .channels = mwifiex_channels_2ghz,
992 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
993 .bitrates = mwifiex_rates,
994 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
995 };
996
997 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
998 {.center_freq = 5040, .hw_value = 8, },
999 {.center_freq = 5060, .hw_value = 12, },
1000 {.center_freq = 5080, .hw_value = 16, },
1001 {.center_freq = 5170, .hw_value = 34, },
1002 {.center_freq = 5190, .hw_value = 38, },
1003 {.center_freq = 5210, .hw_value = 42, },
1004 {.center_freq = 5230, .hw_value = 46, },
1005 {.center_freq = 5180, .hw_value = 36, },
1006 {.center_freq = 5200, .hw_value = 40, },
1007 {.center_freq = 5220, .hw_value = 44, },
1008 {.center_freq = 5240, .hw_value = 48, },
1009 {.center_freq = 5260, .hw_value = 52, },
1010 {.center_freq = 5280, .hw_value = 56, },
1011 {.center_freq = 5300, .hw_value = 60, },
1012 {.center_freq = 5320, .hw_value = 64, },
1013 {.center_freq = 5500, .hw_value = 100, },
1014 {.center_freq = 5520, .hw_value = 104, },
1015 {.center_freq = 5540, .hw_value = 108, },
1016 {.center_freq = 5560, .hw_value = 112, },
1017 {.center_freq = 5580, .hw_value = 116, },
1018 {.center_freq = 5600, .hw_value = 120, },
1019 {.center_freq = 5620, .hw_value = 124, },
1020 {.center_freq = 5640, .hw_value = 128, },
1021 {.center_freq = 5660, .hw_value = 132, },
1022 {.center_freq = 5680, .hw_value = 136, },
1023 {.center_freq = 5700, .hw_value = 140, },
1024 {.center_freq = 5745, .hw_value = 149, },
1025 {.center_freq = 5765, .hw_value = 153, },
1026 {.center_freq = 5785, .hw_value = 157, },
1027 {.center_freq = 5805, .hw_value = 161, },
1028 {.center_freq = 5825, .hw_value = 165, },
1029 };
1030
1031 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1032 .channels = mwifiex_channels_5ghz,
1033 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1034 .bitrates = mwifiex_rates + 4,
1035 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1036 };
1037
1038
1039 /* Supported crypto cipher suits to be advertised to cfg80211 */
1040 static const u32 mwifiex_cipher_suites[] = {
1041 WLAN_CIPHER_SUITE_WEP40,
1042 WLAN_CIPHER_SUITE_WEP104,
1043 WLAN_CIPHER_SUITE_TKIP,
1044 WLAN_CIPHER_SUITE_CCMP,
1045 WLAN_CIPHER_SUITE_AES_CMAC,
1046 };
1047
1048 /* Supported mgmt frame types to be advertised to cfg80211 */
1049 static const struct ieee80211_txrx_stypes
1050 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1051 [NL80211_IFTYPE_STATION] = {
1052 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1053 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1054 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1055 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1056 },
1057 [NL80211_IFTYPE_AP] = {
1058 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1059 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1060 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1061 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1062 },
1063 [NL80211_IFTYPE_P2P_CLIENT] = {
1064 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1065 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1066 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1067 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1068 },
1069 [NL80211_IFTYPE_P2P_GO] = {
1070 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1071 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1072 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1073 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1074 },
1075 };
1076
1077 /*
1078 * CFG802.11 operation handler for setting bit rates.
1079 *
1080 * Function configures data rates to firmware using bitrate mask
1081 * provided by cfg80211.
1082 */
1083 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1084 struct net_device *dev,
1085 const u8 *peer,
1086 const struct cfg80211_bitrate_mask *mask)
1087 {
1088 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1089 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1090 enum ieee80211_band band;
1091
1092 if (!priv->media_connected) {
1093 dev_err(priv->adapter->dev,
1094 "Can not set Tx data rate in disconnected state\n");
1095 return -EINVAL;
1096 }
1097
1098 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1099
1100 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1101
1102 /* Fill HR/DSSS rates. */
1103 if (band == IEEE80211_BAND_2GHZ)
1104 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1105
1106 /* Fill OFDM rates */
1107 if (band == IEEE80211_BAND_2GHZ)
1108 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1109 else
1110 bitmap_rates[1] = mask->control[band].legacy;
1111
1112 /* Fill MCS rates */
1113 bitmap_rates[2] = mask->control[band].mcs[0];
1114 if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1115 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1116
1117 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1118 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1119 }
1120
1121 /*
1122 * CFG802.11 operation handler for connection quality monitoring.
1123 *
1124 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1125 * events to FW.
1126 */
1127 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1128 struct net_device *dev,
1129 s32 rssi_thold, u32 rssi_hyst)
1130 {
1131 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1132 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1133
1134 priv->cqm_rssi_thold = rssi_thold;
1135 priv->cqm_rssi_hyst = rssi_hyst;
1136
1137 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1138 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1139
1140 /* Subscribe/unsubscribe low and high rssi events */
1141 if (rssi_thold && rssi_hyst) {
1142 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1143 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1144 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1145 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1146 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1147 return mwifiex_send_cmd_sync(priv,
1148 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1149 0, 0, &subsc_evt);
1150 } else {
1151 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1152 return mwifiex_send_cmd_sync(priv,
1153 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1154 0, 0, &subsc_evt);
1155 }
1156
1157 return 0;
1158 }
1159
1160 /* cfg80211 operation handler for change_beacon.
1161 * Function retrieves and sets modified management IEs to FW.
1162 */
1163 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1164 struct net_device *dev,
1165 struct cfg80211_beacon_data *data)
1166 {
1167 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1168
1169 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1170 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1171 return -EINVAL;
1172 }
1173
1174 if (!priv->bss_started) {
1175 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1176 return -EINVAL;
1177 }
1178
1179 if (mwifiex_set_mgmt_ies(priv, data)) {
1180 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1181 return -EFAULT;
1182 }
1183
1184 return 0;
1185 }
1186
1187 static int
1188 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1189 {
1190 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1191 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1192 MWIFIEX_BSS_ROLE_ANY);
1193 struct mwifiex_ds_ant_cfg ant_cfg;
1194
1195 if (!tx_ant || !rx_ant)
1196 return -EOPNOTSUPP;
1197
1198 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1199 /* Not a MIMO chip. User should provide specific antenna number
1200 * for Tx/Rx path or enable all antennas for diversity
1201 */
1202 if (tx_ant != rx_ant)
1203 return -EOPNOTSUPP;
1204
1205 if ((tx_ant & (tx_ant - 1)) &&
1206 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1207 return -EOPNOTSUPP;
1208
1209 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1210 (priv->adapter->number_of_antenna > 1)) {
1211 tx_ant = RF_ANTENNA_AUTO;
1212 rx_ant = RF_ANTENNA_AUTO;
1213 }
1214 }
1215
1216 ant_cfg.tx_ant = tx_ant;
1217 ant_cfg.rx_ant = rx_ant;
1218
1219 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1220 HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1221 }
1222
1223 /* cfg80211 operation handler for stop ap.
1224 * Function stops BSS running at uAP interface.
1225 */
1226 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1227 {
1228 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1229
1230 if (mwifiex_del_mgmt_ies(priv))
1231 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1232
1233 priv->ap_11n_enabled = 0;
1234
1235 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1236 HostCmd_ACT_GEN_SET, 0, NULL)) {
1237 wiphy_err(wiphy, "Failed to stop the BSS\n");
1238 return -1;
1239 }
1240
1241 return 0;
1242 }
1243
1244 /* cfg80211 operation handler for start_ap.
1245 * Function sets beacon period, DTIM period, SSID and security into
1246 * AP config structure.
1247 * AP is configured with these settings and BSS is started.
1248 */
1249 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1250 struct net_device *dev,
1251 struct cfg80211_ap_settings *params)
1252 {
1253 struct mwifiex_uap_bss_param *bss_cfg;
1254 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1255 u8 config_bands = 0;
1256
1257 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1258 return -1;
1259 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1260 return -1;
1261
1262 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1263 if (!bss_cfg)
1264 return -ENOMEM;
1265
1266 mwifiex_set_sys_config_invalid_data(bss_cfg);
1267
1268 if (params->beacon_interval)
1269 bss_cfg->beacon_period = params->beacon_interval;
1270 if (params->dtim_period)
1271 bss_cfg->dtim_period = params->dtim_period;
1272
1273 if (params->ssid && params->ssid_len) {
1274 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1275 bss_cfg->ssid.ssid_len = params->ssid_len;
1276 }
1277
1278 switch (params->hidden_ssid) {
1279 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1280 bss_cfg->bcast_ssid_ctl = 1;
1281 break;
1282 case NL80211_HIDDEN_SSID_ZERO_LEN:
1283 bss_cfg->bcast_ssid_ctl = 0;
1284 break;
1285 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1286 /* firmware doesn't support this type of hidden SSID */
1287 default:
1288 kfree(bss_cfg);
1289 return -EINVAL;
1290 }
1291
1292 bss_cfg->channel = ieee80211_frequency_to_channel(
1293 params->chandef.chan->center_freq);
1294
1295 /* Set appropriate bands */
1296 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1297 bss_cfg->band_cfg = BAND_CONFIG_BG;
1298
1299 if (cfg80211_get_chandef_type(&params->chandef) ==
1300 NL80211_CHAN_NO_HT)
1301 config_bands = BAND_B | BAND_G;
1302 else
1303 config_bands = BAND_B | BAND_G | BAND_GN;
1304 } else {
1305 bss_cfg->band_cfg = BAND_CONFIG_A;
1306
1307 if (cfg80211_get_chandef_type(&params->chandef) ==
1308 NL80211_CHAN_NO_HT)
1309 config_bands = BAND_A;
1310 else
1311 config_bands = BAND_AN | BAND_A;
1312 }
1313
1314 if (!((config_bands | priv->adapter->fw_bands) &
1315 ~priv->adapter->fw_bands))
1316 priv->adapter->config_bands = config_bands;
1317
1318 mwifiex_set_uap_rates(bss_cfg, params);
1319 mwifiex_send_domain_info_cmd_fw(wiphy);
1320
1321 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1322 kfree(bss_cfg);
1323 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1324 return -1;
1325 }
1326
1327 mwifiex_set_ht_params(priv, bss_cfg, params);
1328 mwifiex_set_wmm_params(priv, bss_cfg, params);
1329
1330 if (params->inactivity_timeout > 0) {
1331 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1332 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1333 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1334 }
1335
1336 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1337 HostCmd_ACT_GEN_SET, 0, NULL)) {
1338 wiphy_err(wiphy, "Failed to stop the BSS\n");
1339 kfree(bss_cfg);
1340 return -1;
1341 }
1342
1343 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1344 HostCmd_ACT_GEN_SET,
1345 UAP_BSS_PARAMS_I, bss_cfg)) {
1346 wiphy_err(wiphy, "Failed to set the SSID\n");
1347 kfree(bss_cfg);
1348 return -1;
1349 }
1350
1351 kfree(bss_cfg);
1352
1353 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1354 HostCmd_ACT_GEN_SET, 0, NULL)) {
1355 wiphy_err(wiphy, "Failed to start the BSS\n");
1356 return -1;
1357 }
1358
1359 if (priv->sec_info.wep_enabled)
1360 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1361 else
1362 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1363
1364 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1365 HostCmd_ACT_GEN_SET, 0,
1366 &priv->curr_pkt_filter))
1367 return -1;
1368
1369 return 0;
1370 }
1371
1372 /*
1373 * CFG802.11 operation handler for disconnection request.
1374 *
1375 * This function does not work when there is already a disconnection
1376 * procedure going on.
1377 */
1378 static int
1379 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1380 u16 reason_code)
1381 {
1382 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1383
1384 if (mwifiex_deauthenticate(priv, NULL))
1385 return -EFAULT;
1386
1387 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1388 " reason code %d\n", priv->cfg_bssid, reason_code);
1389
1390 memset(priv->cfg_bssid, 0, ETH_ALEN);
1391
1392 return 0;
1393 }
1394
1395 /*
1396 * This function informs the CFG802.11 subsystem of a new IBSS.
1397 *
1398 * The following information are sent to the CFG802.11 subsystem
1399 * to register the new IBSS. If we do not register the new IBSS,
1400 * a kernel panic will result.
1401 * - SSID
1402 * - SSID length
1403 * - BSSID
1404 * - Channel
1405 */
1406 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1407 {
1408 struct ieee80211_channel *chan;
1409 struct mwifiex_bss_info bss_info;
1410 struct cfg80211_bss *bss;
1411 int ie_len;
1412 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1413 enum ieee80211_band band;
1414
1415 if (mwifiex_get_bss_info(priv, &bss_info))
1416 return -1;
1417
1418 ie_buf[0] = WLAN_EID_SSID;
1419 ie_buf[1] = bss_info.ssid.ssid_len;
1420
1421 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1422 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1423 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1424
1425 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1426 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1427 ieee80211_channel_to_frequency(bss_info.bss_chan,
1428 band));
1429
1430 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1431 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1432 0, ie_buf, ie_len, 0, GFP_KERNEL);
1433 cfg80211_put_bss(priv->wdev->wiphy, bss);
1434 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1435
1436 return 0;
1437 }
1438
1439 /*
1440 * This function connects with a BSS.
1441 *
1442 * This function handles both Infra and Ad-Hoc modes. It also performs
1443 * validity checking on the provided parameters, disconnects from the
1444 * current BSS (if any), sets up the association/scan parameters,
1445 * including security settings, and performs specific SSID scan before
1446 * trying to connect.
1447 *
1448 * For Infra mode, the function returns failure if the specified SSID
1449 * is not found in scan table. However, for Ad-Hoc mode, it can create
1450 * the IBSS if it does not exist. On successful completion in either case,
1451 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1452 */
1453 static int
1454 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1455 u8 *bssid, int mode, struct ieee80211_channel *channel,
1456 struct cfg80211_connect_params *sme, bool privacy)
1457 {
1458 struct cfg80211_ssid req_ssid;
1459 int ret, auth_type = 0;
1460 struct cfg80211_bss *bss = NULL;
1461 u8 is_scanning_required = 0;
1462
1463 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1464
1465 req_ssid.ssid_len = ssid_len;
1466 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1467 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1468 return -EINVAL;
1469 }
1470
1471 memcpy(req_ssid.ssid, ssid, ssid_len);
1472 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1473 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1474 return -EINVAL;
1475 }
1476
1477 /* disconnect before try to associate */
1478 mwifiex_deauthenticate(priv, NULL);
1479
1480 /* As this is new association, clear locally stored
1481 * keys and security related flags */
1482 priv->sec_info.wpa_enabled = false;
1483 priv->sec_info.wpa2_enabled = false;
1484 priv->wep_key_curr_index = 0;
1485 priv->sec_info.encryption_mode = 0;
1486 priv->sec_info.is_authtype_auto = 0;
1487 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1488
1489 if (mode == NL80211_IFTYPE_ADHOC) {
1490 /* "privacy" is set only for ad-hoc mode */
1491 if (privacy) {
1492 /*
1493 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1494 * the firmware can find a matching network from the
1495 * scan. The cfg80211 does not give us the encryption
1496 * mode at this stage so just setting it to WEP here.
1497 */
1498 priv->sec_info.encryption_mode =
1499 WLAN_CIPHER_SUITE_WEP104;
1500 priv->sec_info.authentication_mode =
1501 NL80211_AUTHTYPE_OPEN_SYSTEM;
1502 }
1503
1504 goto done;
1505 }
1506
1507 /* Now handle infra mode. "sme" is valid for infra mode only */
1508 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1509 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1510 priv->sec_info.is_authtype_auto = 1;
1511 } else {
1512 auth_type = sme->auth_type;
1513 }
1514
1515 if (sme->crypto.n_ciphers_pairwise) {
1516 priv->sec_info.encryption_mode =
1517 sme->crypto.ciphers_pairwise[0];
1518 priv->sec_info.authentication_mode = auth_type;
1519 }
1520
1521 if (sme->crypto.cipher_group) {
1522 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1523 priv->sec_info.authentication_mode = auth_type;
1524 }
1525 if (sme->ie)
1526 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1527
1528 if (sme->key) {
1529 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1530 dev_dbg(priv->adapter->dev,
1531 "info: setting wep encryption"
1532 " with key len %d\n", sme->key_len);
1533 priv->wep_key_curr_index = sme->key_idx;
1534 ret = mwifiex_set_encode(priv, NULL, sme->key,
1535 sme->key_len, sme->key_idx,
1536 NULL, 0);
1537 }
1538 }
1539 done:
1540 /*
1541 * Scan entries are valid for some time (15 sec). So we can save one
1542 * active scan time if we just try cfg80211_get_bss first. If it fails
1543 * then request scan and cfg80211_get_bss() again for final output.
1544 */
1545 while (1) {
1546 if (is_scanning_required) {
1547 /* Do specific SSID scanning */
1548 if (mwifiex_request_scan(priv, &req_ssid)) {
1549 dev_err(priv->adapter->dev, "scan error\n");
1550 return -EFAULT;
1551 }
1552 }
1553
1554 /* Find the BSS we want using available scan results */
1555 if (mode == NL80211_IFTYPE_ADHOC)
1556 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1557 bssid, ssid, ssid_len,
1558 WLAN_CAPABILITY_IBSS,
1559 WLAN_CAPABILITY_IBSS);
1560 else
1561 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1562 bssid, ssid, ssid_len,
1563 WLAN_CAPABILITY_ESS,
1564 WLAN_CAPABILITY_ESS);
1565
1566 if (!bss) {
1567 if (is_scanning_required) {
1568 dev_warn(priv->adapter->dev,
1569 "assoc: requested bss not found in scan results\n");
1570 break;
1571 }
1572 is_scanning_required = 1;
1573 } else {
1574 dev_dbg(priv->adapter->dev,
1575 "info: trying to associate to '%s' bssid %pM\n",
1576 (char *) req_ssid.ssid, bss->bssid);
1577 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1578 break;
1579 }
1580 }
1581
1582 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1583 if (ret)
1584 return ret;
1585
1586 if (mode == NL80211_IFTYPE_ADHOC) {
1587 /* Inform the BSS information to kernel, otherwise
1588 * kernel will give a panic after successful assoc */
1589 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1590 return -EFAULT;
1591 }
1592
1593 return ret;
1594 }
1595
1596 /*
1597 * CFG802.11 operation handler for association request.
1598 *
1599 * This function does not work when the current mode is set to Ad-Hoc, or
1600 * when there is already an association procedure going on. The given BSS
1601 * information is used to associate.
1602 */
1603 static int
1604 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1605 struct cfg80211_connect_params *sme)
1606 {
1607 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1608 int ret = 0;
1609
1610 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1611 wiphy_err(wiphy, "received infra assoc request "
1612 "when station is in ibss mode\n");
1613 goto done;
1614 }
1615
1616 if (priv->bss_mode == NL80211_IFTYPE_AP) {
1617 wiphy_err(wiphy, "skip association request for AP interface\n");
1618 goto done;
1619 }
1620
1621 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1622 (char *) sme->ssid, sme->bssid);
1623
1624 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1625 priv->bss_mode, sme->channel, sme, 0);
1626 done:
1627 if (!ret) {
1628 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1629 NULL, 0, WLAN_STATUS_SUCCESS,
1630 GFP_KERNEL);
1631 dev_dbg(priv->adapter->dev,
1632 "info: associated to bssid %pM successfully\n",
1633 priv->cfg_bssid);
1634 } else {
1635 dev_dbg(priv->adapter->dev,
1636 "info: association to bssid %pM failed\n",
1637 priv->cfg_bssid);
1638 memset(priv->cfg_bssid, 0, ETH_ALEN);
1639
1640 if (ret > 0)
1641 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1642 NULL, 0, NULL, 0, ret,
1643 GFP_KERNEL);
1644 else
1645 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1646 NULL, 0, NULL, 0,
1647 WLAN_STATUS_UNSPECIFIED_FAILURE,
1648 GFP_KERNEL);
1649 }
1650
1651 return 0;
1652 }
1653
1654 /*
1655 * This function sets following parameters for ibss network.
1656 * - channel
1657 * - start band
1658 * - 11n flag
1659 * - secondary channel offset
1660 */
1661 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1662 struct cfg80211_ibss_params *params)
1663 {
1664 struct wiphy *wiphy = priv->wdev->wiphy;
1665 struct mwifiex_adapter *adapter = priv->adapter;
1666 int index = 0, i;
1667 u8 config_bands = 0;
1668
1669 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1670 if (!params->basic_rates) {
1671 config_bands = BAND_B | BAND_G;
1672 } else {
1673 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1674 /*
1675 * Rates below 6 Mbps in the table are CCK
1676 * rates; 802.11b and from 6 they are OFDM;
1677 * 802.11G
1678 */
1679 if (mwifiex_rates[i].bitrate == 60) {
1680 index = 1 << i;
1681 break;
1682 }
1683 }
1684
1685 if (params->basic_rates < index) {
1686 config_bands = BAND_B;
1687 } else {
1688 config_bands = BAND_G;
1689 if (params->basic_rates % index)
1690 config_bands |= BAND_B;
1691 }
1692 }
1693
1694 if (cfg80211_get_chandef_type(&params->chandef) !=
1695 NL80211_CHAN_NO_HT)
1696 config_bands |= BAND_G | BAND_GN;
1697 } else {
1698 if (cfg80211_get_chandef_type(&params->chandef) ==
1699 NL80211_CHAN_NO_HT)
1700 config_bands = BAND_A;
1701 else
1702 config_bands = BAND_AN | BAND_A;
1703 }
1704
1705 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1706 adapter->config_bands = config_bands;
1707 adapter->adhoc_start_band = config_bands;
1708
1709 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1710 adapter->adhoc_11n_enabled = true;
1711 else
1712 adapter->adhoc_11n_enabled = false;
1713 }
1714
1715 adapter->sec_chan_offset =
1716 mwifiex_chan_type_to_sec_chan_offset(
1717 cfg80211_get_chandef_type(&params->chandef));
1718 priv->adhoc_channel = ieee80211_frequency_to_channel(
1719 params->chandef.chan->center_freq);
1720
1721 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1722 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1723
1724 return 0;
1725 }
1726
1727 /*
1728 * CFG802.11 operation handler to join an IBSS.
1729 *
1730 * This function does not work in any mode other than Ad-Hoc, or if
1731 * a join operation is already in progress.
1732 */
1733 static int
1734 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1735 struct cfg80211_ibss_params *params)
1736 {
1737 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1738 int ret = 0;
1739
1740 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1741 wiphy_err(wiphy, "request to join ibss received "
1742 "when station is not in ibss mode\n");
1743 goto done;
1744 }
1745
1746 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1747 (char *) params->ssid, params->bssid);
1748
1749 mwifiex_set_ibss_params(priv, params);
1750
1751 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1752 params->bssid, priv->bss_mode,
1753 params->chandef.chan, NULL,
1754 params->privacy);
1755 done:
1756 if (!ret) {
1757 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1758 dev_dbg(priv->adapter->dev,
1759 "info: joined/created adhoc network with bssid"
1760 " %pM successfully\n", priv->cfg_bssid);
1761 } else {
1762 dev_dbg(priv->adapter->dev,
1763 "info: failed creating/joining adhoc network\n");
1764 }
1765
1766 return ret;
1767 }
1768
1769 /*
1770 * CFG802.11 operation handler to leave an IBSS.
1771 *
1772 * This function does not work if a leave operation is
1773 * already in progress.
1774 */
1775 static int
1776 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1777 {
1778 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1779
1780 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1781 priv->cfg_bssid);
1782 if (mwifiex_deauthenticate(priv, NULL))
1783 return -EFAULT;
1784
1785 memset(priv->cfg_bssid, 0, ETH_ALEN);
1786
1787 return 0;
1788 }
1789
1790 /*
1791 * CFG802.11 operation handler for scan request.
1792 *
1793 * This function issues a scan request to the firmware based upon
1794 * the user specified scan configuration. On successfull completion,
1795 * it also informs the results.
1796 */
1797 static int
1798 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1799 struct cfg80211_scan_request *request)
1800 {
1801 struct net_device *dev = request->wdev->netdev;
1802 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1803 int i, offset, ret;
1804 struct ieee80211_channel *chan;
1805 struct ieee_types_header *ie;
1806
1807 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1808
1809 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1810 atomic_read(&priv->wmm.tx_pkts_queued) >=
1811 MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1812 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1813 return -EBUSY;
1814 }
1815
1816 if (priv->user_scan_cfg) {
1817 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1818 return -EBUSY;
1819 }
1820
1821 priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1822 GFP_KERNEL);
1823 if (!priv->user_scan_cfg) {
1824 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1825 return -ENOMEM;
1826 }
1827
1828 priv->scan_request = request;
1829
1830 priv->user_scan_cfg->num_ssids = request->n_ssids;
1831 priv->user_scan_cfg->ssid_list = request->ssids;
1832
1833 if (request->ie && request->ie_len) {
1834 offset = 0;
1835 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1836 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1837 continue;
1838 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1839 ie = (struct ieee_types_header *)(request->ie + offset);
1840 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1841 offset += sizeof(*ie) + ie->len;
1842
1843 if (offset >= request->ie_len)
1844 break;
1845 }
1846 }
1847
1848 for (i = 0; i < request->n_channels; i++) {
1849 chan = request->channels[i];
1850 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1851 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1852
1853 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1854 priv->user_scan_cfg->chan_list[i].scan_type =
1855 MWIFIEX_SCAN_TYPE_PASSIVE;
1856 else
1857 priv->user_scan_cfg->chan_list[i].scan_type =
1858 MWIFIEX_SCAN_TYPE_ACTIVE;
1859
1860 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1861 }
1862
1863 ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1864 if (ret) {
1865 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1866 priv->scan_request = NULL;
1867 kfree(priv->user_scan_cfg);
1868 priv->user_scan_cfg = NULL;
1869 return ret;
1870 }
1871
1872 if (request->ie && request->ie_len) {
1873 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1874 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1875 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1876 memset(&priv->vs_ie[i].ie, 0,
1877 MWIFIEX_MAX_VSIE_LEN);
1878 }
1879 }
1880 }
1881 return 0;
1882 }
1883
1884 /*
1885 * This function sets up the CFG802.11 specific HT capability fields
1886 * with default values.
1887 *
1888 * The following default values are set -
1889 * - HT Supported = True
1890 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1891 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1892 * - HT Capabilities supported by firmware
1893 * - MCS information, Rx mask = 0xff
1894 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1895 */
1896 static void
1897 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1898 struct mwifiex_private *priv)
1899 {
1900 int rx_mcs_supp;
1901 struct ieee80211_mcs_info mcs_set;
1902 u8 *mcs = (u8 *)&mcs_set;
1903 struct mwifiex_adapter *adapter = priv->adapter;
1904
1905 ht_info->ht_supported = true;
1906 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1907 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1908
1909 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1910
1911 /* Fill HT capability information */
1912 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1913 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1914 else
1915 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1916
1917 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1918 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1919 else
1920 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1921
1922 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1923 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1924 else
1925 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1926
1927 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1928 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1929 else
1930 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1931
1932 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1933 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1934 else
1935 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1936
1937 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
1938 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1939 else
1940 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
1941
1942 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
1943 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1944 else
1945 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1946
1947 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
1948 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
1949 else
1950 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
1951
1952 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1953 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1954
1955 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1956 /* Set MCS for 1x1 */
1957 memset(mcs, 0xff, rx_mcs_supp);
1958 /* Clear all the other values */
1959 memset(&mcs[rx_mcs_supp], 0,
1960 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1961 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1962 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1963 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1964 SETHT_MCS32(mcs_set.rx_mask);
1965
1966 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1967
1968 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1969 }
1970
1971 /*
1972 * create a new virtual interface with the given name
1973 */
1974 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1975 const char *name,
1976 enum nl80211_iftype type,
1977 u32 *flags,
1978 struct vif_params *params)
1979 {
1980 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1981 struct mwifiex_private *priv;
1982 struct net_device *dev;
1983 void *mdev_priv;
1984 struct wireless_dev *wdev;
1985
1986 if (!adapter)
1987 return ERR_PTR(-EFAULT);
1988
1989 switch (type) {
1990 case NL80211_IFTYPE_UNSPECIFIED:
1991 case NL80211_IFTYPE_STATION:
1992 case NL80211_IFTYPE_ADHOC:
1993 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1994 if (priv->bss_mode) {
1995 wiphy_err(wiphy,
1996 "cannot create multiple sta/adhoc ifaces\n");
1997 return ERR_PTR(-EINVAL);
1998 }
1999
2000 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2001 if (!wdev)
2002 return ERR_PTR(-ENOMEM);
2003
2004 wdev->wiphy = wiphy;
2005 priv->wdev = wdev;
2006 wdev->iftype = NL80211_IFTYPE_STATION;
2007
2008 if (type == NL80211_IFTYPE_UNSPECIFIED)
2009 priv->bss_mode = NL80211_IFTYPE_STATION;
2010 else
2011 priv->bss_mode = type;
2012
2013 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2014 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2015 priv->bss_priority = 0;
2016 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2017 priv->bss_num = 0;
2018
2019 break;
2020 case NL80211_IFTYPE_AP:
2021 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2022
2023 if (priv->bss_mode) {
2024 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2025 return ERR_PTR(-EINVAL);
2026 }
2027
2028 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2029 if (!wdev)
2030 return ERR_PTR(-ENOMEM);
2031
2032 priv->wdev = wdev;
2033 wdev->wiphy = wiphy;
2034 wdev->iftype = NL80211_IFTYPE_AP;
2035
2036 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2037 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2038 priv->bss_priority = 0;
2039 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2040 priv->bss_started = 0;
2041 priv->bss_num = 0;
2042 priv->bss_mode = type;
2043
2044 break;
2045 case NL80211_IFTYPE_P2P_CLIENT:
2046 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2047
2048 if (priv->bss_mode) {
2049 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2050 return ERR_PTR(-EINVAL);
2051 }
2052
2053 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2054 if (!wdev)
2055 return ERR_PTR(-ENOMEM);
2056
2057 priv->wdev = wdev;
2058 wdev->wiphy = wiphy;
2059
2060 /* At start-up, wpa_supplicant tries to change the interface
2061 * to NL80211_IFTYPE_STATION if it is not managed mode.
2062 * So, we initialize it to STA mode.
2063 */
2064 wdev->iftype = NL80211_IFTYPE_STATION;
2065 priv->bss_mode = NL80211_IFTYPE_STATION;
2066
2067 /* Setting bss_type to P2P tells firmware that this interface
2068 * is receiving P2P peers found during find phase and doing
2069 * action frame handshake.
2070 */
2071 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2072
2073 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2074 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2075 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2076 priv->bss_started = 0;
2077 priv->bss_num = 0;
2078
2079 break;
2080 default:
2081 wiphy_err(wiphy, "type not supported\n");
2082 return ERR_PTR(-EINVAL);
2083 }
2084
2085 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2086 ether_setup, IEEE80211_NUM_ACS, 1);
2087 if (!dev) {
2088 wiphy_err(wiphy, "no memory available for netdevice\n");
2089 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2090 return ERR_PTR(-ENOMEM);
2091 }
2092
2093 mwifiex_init_priv_params(priv, dev);
2094 priv->netdev = dev;
2095
2096 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2097
2098 if (adapter->config_bands & BAND_A)
2099 mwifiex_setup_ht_caps(
2100 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2101
2102 dev_net_set(dev, wiphy_net(wiphy));
2103 dev->ieee80211_ptr = priv->wdev;
2104 dev->ieee80211_ptr->iftype = priv->bss_mode;
2105 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2106 memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
2107 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2108
2109 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2110 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2111 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2112
2113 mdev_priv = netdev_priv(dev);
2114 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2115
2116 SET_NETDEV_DEV(dev, adapter->dev);
2117
2118 /* Register network device */
2119 if (register_netdevice(dev)) {
2120 wiphy_err(wiphy, "cannot register virtual network device\n");
2121 free_netdev(dev);
2122 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2123 return ERR_PTR(-EFAULT);
2124 }
2125
2126 sema_init(&priv->async_sem, 1);
2127
2128 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2129
2130 #ifdef CONFIG_DEBUG_FS
2131 mwifiex_dev_debugfs_init(priv);
2132 #endif
2133 return wdev;
2134 }
2135 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2136
2137 /*
2138 * del_virtual_intf: remove the virtual interface determined by dev
2139 */
2140 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2141 {
2142 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2143
2144 #ifdef CONFIG_DEBUG_FS
2145 mwifiex_dev_debugfs_remove(priv);
2146 #endif
2147
2148 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2149
2150 if (netif_carrier_ok(priv->netdev))
2151 netif_carrier_off(priv->netdev);
2152
2153 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2154 unregister_netdevice(wdev->netdev);
2155
2156 if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
2157 free_netdev(wdev->netdev);
2158
2159 /* Clear the priv in adapter */
2160 priv->netdev = NULL;
2161
2162 priv->media_connected = false;
2163
2164 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2165
2166 return 0;
2167 }
2168 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2169
2170 /* station cfg80211 operations */
2171 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2172 .add_virtual_intf = mwifiex_add_virtual_intf,
2173 .del_virtual_intf = mwifiex_del_virtual_intf,
2174 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2175 .scan = mwifiex_cfg80211_scan,
2176 .connect = mwifiex_cfg80211_connect,
2177 .disconnect = mwifiex_cfg80211_disconnect,
2178 .get_station = mwifiex_cfg80211_get_station,
2179 .dump_station = mwifiex_cfg80211_dump_station,
2180 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2181 .join_ibss = mwifiex_cfg80211_join_ibss,
2182 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2183 .add_key = mwifiex_cfg80211_add_key,
2184 .del_key = mwifiex_cfg80211_del_key,
2185 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2186 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2187 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2188 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2189 .set_default_key = mwifiex_cfg80211_set_default_key,
2190 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2191 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2192 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2193 .start_ap = mwifiex_cfg80211_start_ap,
2194 .stop_ap = mwifiex_cfg80211_stop_ap,
2195 .change_beacon = mwifiex_cfg80211_change_beacon,
2196 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2197 .set_antenna = mwifiex_cfg80211_set_antenna,
2198 };
2199
2200 /*
2201 * This function registers the device with CFG802.11 subsystem.
2202 *
2203 * The function creates the wireless device/wiphy, populates it with
2204 * default parameters and handler function pointers, and finally
2205 * registers the device.
2206 */
2207
2208 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2209 {
2210 int ret;
2211 void *wdev_priv;
2212 struct wiphy *wiphy;
2213 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2214 u8 *country_code;
2215
2216 /* create a new wiphy for use with cfg80211 */
2217 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2218 sizeof(struct mwifiex_adapter *));
2219 if (!wiphy) {
2220 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2221 return -ENOMEM;
2222 }
2223 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2224 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2225 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2226 wiphy->max_remain_on_channel_duration = 5000;
2227 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2228 BIT(NL80211_IFTYPE_ADHOC) |
2229 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2230 BIT(NL80211_IFTYPE_P2P_GO) |
2231 BIT(NL80211_IFTYPE_AP);
2232
2233 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2234 if (adapter->config_bands & BAND_A)
2235 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2236 else
2237 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2238
2239 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2240 wiphy->n_iface_combinations = 1;
2241
2242 /* Initialize cipher suits */
2243 wiphy->cipher_suites = mwifiex_cipher_suites;
2244 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2245
2246 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2247 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2248 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2249 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2250 WIPHY_FLAG_AP_UAPSD |
2251 WIPHY_FLAG_CUSTOM_REGULATORY |
2252 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2253
2254 wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2255
2256 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2257 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2258 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2259
2260 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2261 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2262
2263 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2264 NL80211_FEATURE_INACTIVITY_TIMER |
2265 NL80211_FEATURE_LOW_PRIORITY_SCAN;
2266
2267 /* Reserve space for mwifiex specific private data for BSS */
2268 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2269
2270 wiphy->reg_notifier = mwifiex_reg_notifier;
2271
2272 /* Set struct mwifiex_adapter pointer in wiphy_priv */
2273 wdev_priv = wiphy_priv(wiphy);
2274 *(unsigned long *)wdev_priv = (unsigned long)adapter;
2275
2276 set_wiphy_dev(wiphy, priv->adapter->dev);
2277
2278 ret = wiphy_register(wiphy);
2279 if (ret < 0) {
2280 dev_err(adapter->dev,
2281 "%s: wiphy_register failed: %d\n", __func__, ret);
2282 wiphy_free(wiphy);
2283 return ret;
2284 }
2285 country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2286 if (country_code)
2287 dev_info(adapter->dev,
2288 "ignoring F/W country code %2.2s\n", country_code);
2289
2290 adapter->wiphy = wiphy;
2291 return ret;
2292 }
Linux kernel - Deliverables
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