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ARM: 7630/1: mmc: mmci: Fixup and cleanup code for DMA handling
[GitHub/mt8127/android_kernel_alcatel_ttab.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 int 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 return 0;
545 }
546
547 /*
548 * This function sets the fragmentation threshold.
549 *
550 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
551 * and MWIFIEX_FRAG_MAX_VALUE.
552 */
553 static int
554 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
555 {
556 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
557 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
558 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
559
560 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
561 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
562 &frag_thr);
563 }
564
565 /*
566 * This function sets the RTS threshold.
567
568 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
569 * and MWIFIEX_RTS_MAX_VALUE.
570 */
571 static int
572 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
573 {
574 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
575 rts_thr = MWIFIEX_RTS_MAX_VALUE;
576
577 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
578 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
579 &rts_thr);
580 }
581
582 /*
583 * CFG802.11 operation handler to set wiphy parameters.
584 *
585 * This function can be used to set the RTS threshold and the
586 * Fragmentation threshold of the driver.
587 */
588 static int
589 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
590 {
591 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
592 struct mwifiex_private *priv;
593 struct mwifiex_uap_bss_param *bss_cfg;
594 int ret, bss_started, i;
595
596 for (i = 0; i < adapter->priv_num; i++) {
597 priv = adapter->priv[i];
598
599 switch (priv->bss_role) {
600 case MWIFIEX_BSS_ROLE_UAP:
601 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
602 GFP_KERNEL);
603 if (!bss_cfg)
604 return -ENOMEM;
605
606 mwifiex_set_sys_config_invalid_data(bss_cfg);
607
608 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
609 bss_cfg->rts_threshold = wiphy->rts_threshold;
610 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
611 bss_cfg->frag_threshold = wiphy->frag_threshold;
612 if (changed & WIPHY_PARAM_RETRY_LONG)
613 bss_cfg->retry_limit = wiphy->retry_long;
614
615 bss_started = priv->bss_started;
616
617 ret = mwifiex_send_cmd_sync(priv,
618 HostCmd_CMD_UAP_BSS_STOP,
619 HostCmd_ACT_GEN_SET, 0,
620 NULL);
621 if (ret) {
622 wiphy_err(wiphy, "Failed to stop the BSS\n");
623 kfree(bss_cfg);
624 return ret;
625 }
626
627 ret = mwifiex_send_cmd_async(priv,
628 HostCmd_CMD_UAP_SYS_CONFIG,
629 HostCmd_ACT_GEN_SET,
630 UAP_BSS_PARAMS_I, bss_cfg);
631
632 kfree(bss_cfg);
633
634 if (ret) {
635 wiphy_err(wiphy, "Failed to set bss config\n");
636 return ret;
637 }
638
639 if (!bss_started)
640 break;
641
642 ret = mwifiex_send_cmd_async(priv,
643 HostCmd_CMD_UAP_BSS_START,
644 HostCmd_ACT_GEN_SET, 0,
645 NULL);
646 if (ret) {
647 wiphy_err(wiphy, "Failed to start BSS\n");
648 return ret;
649 }
650
651 break;
652 case MWIFIEX_BSS_ROLE_STA:
653 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
654 ret = mwifiex_set_rts(priv,
655 wiphy->rts_threshold);
656 if (ret)
657 return ret;
658 }
659 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
660 ret = mwifiex_set_frag(priv,
661 wiphy->frag_threshold);
662 if (ret)
663 return ret;
664 }
665 break;
666 }
667 }
668
669 return 0;
670 }
671
672 static int
673 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
674 {
675 u16 mode = P2P_MODE_DISABLE;
676
677 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
678 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
679
680 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
681 HostCmd_ACT_GEN_SET, 0, &mode))
682 return -1;
683
684 return 0;
685 }
686
687 /*
688 * This function initializes the functionalities for P2P client.
689 * The P2P client initialization sequence is:
690 * disable -> device -> client
691 */
692 static int
693 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
694 {
695 u16 mode;
696
697 if (mwifiex_cfg80211_deinit_p2p(priv))
698 return -1;
699
700 mode = P2P_MODE_DEVICE;
701 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
702 HostCmd_ACT_GEN_SET, 0, &mode))
703 return -1;
704
705 mode = P2P_MODE_CLIENT;
706 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
707 HostCmd_ACT_GEN_SET, 0, &mode))
708 return -1;
709
710 return 0;
711 }
712
713 /*
714 * This function initializes the functionalities for P2P GO.
715 * The P2P GO initialization sequence is:
716 * disable -> device -> GO
717 */
718 static int
719 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
720 {
721 u16 mode;
722
723 if (mwifiex_cfg80211_deinit_p2p(priv))
724 return -1;
725
726 mode = P2P_MODE_DEVICE;
727 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
728 HostCmd_ACT_GEN_SET, 0, &mode))
729 return -1;
730
731 mode = P2P_MODE_GO;
732 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
733 HostCmd_ACT_GEN_SET, 0, &mode))
734 return -1;
735
736 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
737 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
738
739 return 0;
740 }
741
742 /*
743 * CFG802.11 operation handler to change interface type.
744 */
745 static int
746 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
747 struct net_device *dev,
748 enum nl80211_iftype type, u32 *flags,
749 struct vif_params *params)
750 {
751 int ret;
752 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
753
754 switch (dev->ieee80211_ptr->iftype) {
755 case NL80211_IFTYPE_ADHOC:
756 switch (type) {
757 case NL80211_IFTYPE_STATION:
758 break;
759 case NL80211_IFTYPE_UNSPECIFIED:
760 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
761 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
762 return 0;
763 case NL80211_IFTYPE_AP:
764 default:
765 wiphy_err(wiphy, "%s: changing to %d not supported\n",
766 dev->name, type);
767 return -EOPNOTSUPP;
768 }
769 break;
770 case NL80211_IFTYPE_STATION:
771 switch (type) {
772 case NL80211_IFTYPE_ADHOC:
773 break;
774 case NL80211_IFTYPE_P2P_CLIENT:
775 if (mwifiex_cfg80211_init_p2p_client(priv))
776 return -EFAULT;
777 dev->ieee80211_ptr->iftype = type;
778 return 0;
779 case NL80211_IFTYPE_P2P_GO:
780 if (mwifiex_cfg80211_init_p2p_go(priv))
781 return -EFAULT;
782 dev->ieee80211_ptr->iftype = type;
783 return 0;
784 case NL80211_IFTYPE_UNSPECIFIED:
785 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
786 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
787 return 0;
788 case NL80211_IFTYPE_AP:
789 default:
790 wiphy_err(wiphy, "%s: changing to %d not supported\n",
791 dev->name, type);
792 return -EOPNOTSUPP;
793 }
794 break;
795 case NL80211_IFTYPE_AP:
796 switch (type) {
797 case NL80211_IFTYPE_UNSPECIFIED:
798 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
799 case NL80211_IFTYPE_AP: /* This shouldn't happen */
800 return 0;
801 case NL80211_IFTYPE_ADHOC:
802 case NL80211_IFTYPE_STATION:
803 default:
804 wiphy_err(wiphy, "%s: changing to %d not supported\n",
805 dev->name, type);
806 return -EOPNOTSUPP;
807 }
808 break;
809 case NL80211_IFTYPE_P2P_CLIENT:
810 case NL80211_IFTYPE_P2P_GO:
811 switch (type) {
812 case NL80211_IFTYPE_STATION:
813 if (mwifiex_cfg80211_deinit_p2p(priv))
814 return -EFAULT;
815 dev->ieee80211_ptr->iftype = type;
816 return 0;
817 default:
818 return -EOPNOTSUPP;
819 }
820 break;
821 default:
822 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
823 dev->name, dev->ieee80211_ptr->iftype);
824 return -EOPNOTSUPP;
825 }
826
827 dev->ieee80211_ptr->iftype = type;
828 priv->bss_mode = type;
829 mwifiex_deauthenticate(priv, NULL);
830
831 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
832
833 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
834 HostCmd_ACT_GEN_SET, 0, NULL);
835
836 return ret;
837 }
838
839 /*
840 * This function dumps the station information on a buffer.
841 *
842 * The following information are shown -
843 * - Total bytes transmitted
844 * - Total bytes received
845 * - Total packets transmitted
846 * - Total packets received
847 * - Signal quality level
848 * - Transmission rate
849 */
850 static int
851 mwifiex_dump_station_info(struct mwifiex_private *priv,
852 struct station_info *sinfo)
853 {
854 u32 rate;
855
856 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
857 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
858 STATION_INFO_TX_BITRATE |
859 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
860
861 /* Get signal information from the firmware */
862 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
863 HostCmd_ACT_GEN_GET, 0, NULL)) {
864 dev_err(priv->adapter->dev, "failed to get signal information\n");
865 return -EFAULT;
866 }
867
868 if (mwifiex_drv_get_data_rate(priv, &rate)) {
869 dev_err(priv->adapter->dev, "getting data rate\n");
870 return -EFAULT;
871 }
872
873 /* Get DTIM period information from firmware */
874 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
875 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
876 &priv->dtim_period);
877
878 /*
879 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
880 * MCS index values for us are 0 to 15.
881 */
882 if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
883 sinfo->txrate.mcs = priv->tx_rate;
884 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
885 /* 40MHz rate */
886 if (priv->tx_htinfo & BIT(1))
887 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
888 /* SGI enabled */
889 if (priv->tx_htinfo & BIT(2))
890 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
891 }
892
893 sinfo->signal_avg = priv->bcn_rssi_avg;
894 sinfo->rx_bytes = priv->stats.rx_bytes;
895 sinfo->tx_bytes = priv->stats.tx_bytes;
896 sinfo->rx_packets = priv->stats.rx_packets;
897 sinfo->tx_packets = priv->stats.tx_packets;
898 sinfo->signal = priv->bcn_rssi_avg;
899 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
900 sinfo->txrate.legacy = rate * 5;
901
902 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
903 sinfo->filled |= STATION_INFO_BSS_PARAM;
904 sinfo->bss_param.flags = 0;
905 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
906 WLAN_CAPABILITY_SHORT_PREAMBLE)
907 sinfo->bss_param.flags |=
908 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
909 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
910 WLAN_CAPABILITY_SHORT_SLOT_TIME)
911 sinfo->bss_param.flags |=
912 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
913 sinfo->bss_param.dtim_period = priv->dtim_period;
914 sinfo->bss_param.beacon_interval =
915 priv->curr_bss_params.bss_descriptor.beacon_period;
916 }
917
918 return 0;
919 }
920
921 /*
922 * CFG802.11 operation handler to get station information.
923 *
924 * This function only works in connected mode, and dumps the
925 * requested station information, if available.
926 */
927 static int
928 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
929 u8 *mac, struct station_info *sinfo)
930 {
931 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
932
933 if (!priv->media_connected)
934 return -ENOENT;
935 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
936 return -ENOENT;
937
938 return mwifiex_dump_station_info(priv, sinfo);
939 }
940
941 /*
942 * CFG802.11 operation handler to dump station information.
943 */
944 static int
945 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
946 int idx, u8 *mac, struct station_info *sinfo)
947 {
948 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
949
950 if (!priv->media_connected || idx)
951 return -ENOENT;
952
953 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
954
955 return mwifiex_dump_station_info(priv, sinfo);
956 }
957
958 /* Supported rates to be advertised to the cfg80211 */
959 static struct ieee80211_rate mwifiex_rates[] = {
960 {.bitrate = 10, .hw_value = 2, },
961 {.bitrate = 20, .hw_value = 4, },
962 {.bitrate = 55, .hw_value = 11, },
963 {.bitrate = 110, .hw_value = 22, },
964 {.bitrate = 60, .hw_value = 12, },
965 {.bitrate = 90, .hw_value = 18, },
966 {.bitrate = 120, .hw_value = 24, },
967 {.bitrate = 180, .hw_value = 36, },
968 {.bitrate = 240, .hw_value = 48, },
969 {.bitrate = 360, .hw_value = 72, },
970 {.bitrate = 480, .hw_value = 96, },
971 {.bitrate = 540, .hw_value = 108, },
972 };
973
974 /* Channel definitions to be advertised to cfg80211 */
975 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
976 {.center_freq = 2412, .hw_value = 1, },
977 {.center_freq = 2417, .hw_value = 2, },
978 {.center_freq = 2422, .hw_value = 3, },
979 {.center_freq = 2427, .hw_value = 4, },
980 {.center_freq = 2432, .hw_value = 5, },
981 {.center_freq = 2437, .hw_value = 6, },
982 {.center_freq = 2442, .hw_value = 7, },
983 {.center_freq = 2447, .hw_value = 8, },
984 {.center_freq = 2452, .hw_value = 9, },
985 {.center_freq = 2457, .hw_value = 10, },
986 {.center_freq = 2462, .hw_value = 11, },
987 {.center_freq = 2467, .hw_value = 12, },
988 {.center_freq = 2472, .hw_value = 13, },
989 {.center_freq = 2484, .hw_value = 14, },
990 };
991
992 static struct ieee80211_supported_band mwifiex_band_2ghz = {
993 .channels = mwifiex_channels_2ghz,
994 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
995 .bitrates = mwifiex_rates,
996 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
997 };
998
999 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1000 {.center_freq = 5040, .hw_value = 8, },
1001 {.center_freq = 5060, .hw_value = 12, },
1002 {.center_freq = 5080, .hw_value = 16, },
1003 {.center_freq = 5170, .hw_value = 34, },
1004 {.center_freq = 5190, .hw_value = 38, },
1005 {.center_freq = 5210, .hw_value = 42, },
1006 {.center_freq = 5230, .hw_value = 46, },
1007 {.center_freq = 5180, .hw_value = 36, },
1008 {.center_freq = 5200, .hw_value = 40, },
1009 {.center_freq = 5220, .hw_value = 44, },
1010 {.center_freq = 5240, .hw_value = 48, },
1011 {.center_freq = 5260, .hw_value = 52, },
1012 {.center_freq = 5280, .hw_value = 56, },
1013 {.center_freq = 5300, .hw_value = 60, },
1014 {.center_freq = 5320, .hw_value = 64, },
1015 {.center_freq = 5500, .hw_value = 100, },
1016 {.center_freq = 5520, .hw_value = 104, },
1017 {.center_freq = 5540, .hw_value = 108, },
1018 {.center_freq = 5560, .hw_value = 112, },
1019 {.center_freq = 5580, .hw_value = 116, },
1020 {.center_freq = 5600, .hw_value = 120, },
1021 {.center_freq = 5620, .hw_value = 124, },
1022 {.center_freq = 5640, .hw_value = 128, },
1023 {.center_freq = 5660, .hw_value = 132, },
1024 {.center_freq = 5680, .hw_value = 136, },
1025 {.center_freq = 5700, .hw_value = 140, },
1026 {.center_freq = 5745, .hw_value = 149, },
1027 {.center_freq = 5765, .hw_value = 153, },
1028 {.center_freq = 5785, .hw_value = 157, },
1029 {.center_freq = 5805, .hw_value = 161, },
1030 {.center_freq = 5825, .hw_value = 165, },
1031 };
1032
1033 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1034 .channels = mwifiex_channels_5ghz,
1035 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1036 .bitrates = mwifiex_rates + 4,
1037 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1038 };
1039
1040
1041 /* Supported crypto cipher suits to be advertised to cfg80211 */
1042 static const u32 mwifiex_cipher_suites[] = {
1043 WLAN_CIPHER_SUITE_WEP40,
1044 WLAN_CIPHER_SUITE_WEP104,
1045 WLAN_CIPHER_SUITE_TKIP,
1046 WLAN_CIPHER_SUITE_CCMP,
1047 WLAN_CIPHER_SUITE_AES_CMAC,
1048 };
1049
1050 /* Supported mgmt frame types to be advertised to cfg80211 */
1051 static const struct ieee80211_txrx_stypes
1052 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1053 [NL80211_IFTYPE_STATION] = {
1054 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1055 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1056 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1057 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1058 },
1059 [NL80211_IFTYPE_AP] = {
1060 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1061 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1062 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1063 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1064 },
1065 [NL80211_IFTYPE_P2P_CLIENT] = {
1066 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1067 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1068 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1069 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1070 },
1071 [NL80211_IFTYPE_P2P_GO] = {
1072 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1073 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1074 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1075 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1076 },
1077 };
1078
1079 /*
1080 * CFG802.11 operation handler for setting bit rates.
1081 *
1082 * Function configures data rates to firmware using bitrate mask
1083 * provided by cfg80211.
1084 */
1085 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1086 struct net_device *dev,
1087 const u8 *peer,
1088 const struct cfg80211_bitrate_mask *mask)
1089 {
1090 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1091 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1092 enum ieee80211_band band;
1093
1094 if (!priv->media_connected) {
1095 dev_err(priv->adapter->dev,
1096 "Can not set Tx data rate in disconnected state\n");
1097 return -EINVAL;
1098 }
1099
1100 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1101
1102 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1103
1104 /* Fill HR/DSSS rates. */
1105 if (band == IEEE80211_BAND_2GHZ)
1106 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1107
1108 /* Fill OFDM rates */
1109 if (band == IEEE80211_BAND_2GHZ)
1110 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1111 else
1112 bitmap_rates[1] = mask->control[band].legacy;
1113
1114 /* Fill MCS rates */
1115 bitmap_rates[2] = mask->control[band].mcs[0];
1116 if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1117 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1118
1119 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1120 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1121 }
1122
1123 /*
1124 * CFG802.11 operation handler for connection quality monitoring.
1125 *
1126 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1127 * events to FW.
1128 */
1129 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1130 struct net_device *dev,
1131 s32 rssi_thold, u32 rssi_hyst)
1132 {
1133 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1134 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1135
1136 priv->cqm_rssi_thold = rssi_thold;
1137 priv->cqm_rssi_hyst = rssi_hyst;
1138
1139 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1140 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1141
1142 /* Subscribe/unsubscribe low and high rssi events */
1143 if (rssi_thold && rssi_hyst) {
1144 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1145 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1146 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1147 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1148 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1149 return mwifiex_send_cmd_sync(priv,
1150 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1151 0, 0, &subsc_evt);
1152 } else {
1153 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1154 return mwifiex_send_cmd_sync(priv,
1155 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1156 0, 0, &subsc_evt);
1157 }
1158
1159 return 0;
1160 }
1161
1162 /* cfg80211 operation handler for change_beacon.
1163 * Function retrieves and sets modified management IEs to FW.
1164 */
1165 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1166 struct net_device *dev,
1167 struct cfg80211_beacon_data *data)
1168 {
1169 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1170
1171 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1172 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1173 return -EINVAL;
1174 }
1175
1176 if (!priv->bss_started) {
1177 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1178 return -EINVAL;
1179 }
1180
1181 if (mwifiex_set_mgmt_ies(priv, data)) {
1182 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1183 return -EFAULT;
1184 }
1185
1186 return 0;
1187 }
1188
1189 static int
1190 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1191 {
1192 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1193 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1194 MWIFIEX_BSS_ROLE_ANY);
1195 struct mwifiex_ds_ant_cfg ant_cfg;
1196
1197 if (!tx_ant || !rx_ant)
1198 return -EOPNOTSUPP;
1199
1200 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1201 /* Not a MIMO chip. User should provide specific antenna number
1202 * for Tx/Rx path or enable all antennas for diversity
1203 */
1204 if (tx_ant != rx_ant)
1205 return -EOPNOTSUPP;
1206
1207 if ((tx_ant & (tx_ant - 1)) &&
1208 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1209 return -EOPNOTSUPP;
1210
1211 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1212 (priv->adapter->number_of_antenna > 1)) {
1213 tx_ant = RF_ANTENNA_AUTO;
1214 rx_ant = RF_ANTENNA_AUTO;
1215 }
1216 }
1217
1218 ant_cfg.tx_ant = tx_ant;
1219 ant_cfg.rx_ant = rx_ant;
1220
1221 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1222 HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1223 }
1224
1225 /* cfg80211 operation handler for stop ap.
1226 * Function stops BSS running at uAP interface.
1227 */
1228 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1229 {
1230 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1231
1232 if (mwifiex_del_mgmt_ies(priv))
1233 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1234
1235 priv->ap_11n_enabled = 0;
1236
1237 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1238 HostCmd_ACT_GEN_SET, 0, NULL)) {
1239 wiphy_err(wiphy, "Failed to stop the BSS\n");
1240 return -1;
1241 }
1242
1243 return 0;
1244 }
1245
1246 /* cfg80211 operation handler for start_ap.
1247 * Function sets beacon period, DTIM period, SSID and security into
1248 * AP config structure.
1249 * AP is configured with these settings and BSS is started.
1250 */
1251 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1252 struct net_device *dev,
1253 struct cfg80211_ap_settings *params)
1254 {
1255 struct mwifiex_uap_bss_param *bss_cfg;
1256 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1257 u8 config_bands = 0;
1258
1259 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1260 return -1;
1261 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1262 return -1;
1263
1264 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1265 if (!bss_cfg)
1266 return -ENOMEM;
1267
1268 mwifiex_set_sys_config_invalid_data(bss_cfg);
1269
1270 if (params->beacon_interval)
1271 bss_cfg->beacon_period = params->beacon_interval;
1272 if (params->dtim_period)
1273 bss_cfg->dtim_period = params->dtim_period;
1274
1275 if (params->ssid && params->ssid_len) {
1276 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1277 bss_cfg->ssid.ssid_len = params->ssid_len;
1278 }
1279
1280 switch (params->hidden_ssid) {
1281 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1282 bss_cfg->bcast_ssid_ctl = 1;
1283 break;
1284 case NL80211_HIDDEN_SSID_ZERO_LEN:
1285 bss_cfg->bcast_ssid_ctl = 0;
1286 break;
1287 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1288 /* firmware doesn't support this type of hidden SSID */
1289 default:
1290 kfree(bss_cfg);
1291 return -EINVAL;
1292 }
1293
1294 bss_cfg->channel = ieee80211_frequency_to_channel(
1295 params->chandef.chan->center_freq);
1296
1297 /* Set appropriate bands */
1298 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1299 bss_cfg->band_cfg = BAND_CONFIG_BG;
1300
1301 if (cfg80211_get_chandef_type(&params->chandef) ==
1302 NL80211_CHAN_NO_HT)
1303 config_bands = BAND_B | BAND_G;
1304 else
1305 config_bands = BAND_B | BAND_G | BAND_GN;
1306 } else {
1307 bss_cfg->band_cfg = BAND_CONFIG_A;
1308
1309 if (cfg80211_get_chandef_type(&params->chandef) ==
1310 NL80211_CHAN_NO_HT)
1311 config_bands = BAND_A;
1312 else
1313 config_bands = BAND_AN | BAND_A;
1314 }
1315
1316 if (!((config_bands | priv->adapter->fw_bands) &
1317 ~priv->adapter->fw_bands))
1318 priv->adapter->config_bands = config_bands;
1319
1320 mwifiex_set_uap_rates(bss_cfg, params);
1321 mwifiex_send_domain_info_cmd_fw(wiphy);
1322
1323 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1324 kfree(bss_cfg);
1325 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1326 return -1;
1327 }
1328
1329 mwifiex_set_ht_params(priv, bss_cfg, params);
1330
1331 if (params->inactivity_timeout > 0) {
1332 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1333 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1334 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1335 }
1336
1337 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1338 HostCmd_ACT_GEN_SET, 0, NULL)) {
1339 wiphy_err(wiphy, "Failed to stop the BSS\n");
1340 kfree(bss_cfg);
1341 return -1;
1342 }
1343
1344 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1345 HostCmd_ACT_GEN_SET,
1346 UAP_BSS_PARAMS_I, bss_cfg)) {
1347 wiphy_err(wiphy, "Failed to set the SSID\n");
1348 kfree(bss_cfg);
1349 return -1;
1350 }
1351
1352 kfree(bss_cfg);
1353
1354 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1355 HostCmd_ACT_GEN_SET, 0, NULL)) {
1356 wiphy_err(wiphy, "Failed to start the BSS\n");
1357 return -1;
1358 }
1359
1360 if (priv->sec_info.wep_enabled)
1361 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1362 else
1363 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1364
1365 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1366 HostCmd_ACT_GEN_SET, 0,
1367 &priv->curr_pkt_filter))
1368 return -1;
1369
1370 return 0;
1371 }
1372
1373 /*
1374 * CFG802.11 operation handler for disconnection request.
1375 *
1376 * This function does not work when there is already a disconnection
1377 * procedure going on.
1378 */
1379 static int
1380 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1381 u16 reason_code)
1382 {
1383 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1384
1385 if (mwifiex_deauthenticate(priv, NULL))
1386 return -EFAULT;
1387
1388 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1389 " reason code %d\n", priv->cfg_bssid, reason_code);
1390
1391 memset(priv->cfg_bssid, 0, ETH_ALEN);
1392
1393 return 0;
1394 }
1395
1396 /*
1397 * This function informs the CFG802.11 subsystem of a new IBSS.
1398 *
1399 * The following information are sent to the CFG802.11 subsystem
1400 * to register the new IBSS. If we do not register the new IBSS,
1401 * a kernel panic will result.
1402 * - SSID
1403 * - SSID length
1404 * - BSSID
1405 * - Channel
1406 */
1407 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1408 {
1409 struct ieee80211_channel *chan;
1410 struct mwifiex_bss_info bss_info;
1411 struct cfg80211_bss *bss;
1412 int ie_len;
1413 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1414 enum ieee80211_band band;
1415
1416 if (mwifiex_get_bss_info(priv, &bss_info))
1417 return -1;
1418
1419 ie_buf[0] = WLAN_EID_SSID;
1420 ie_buf[1] = bss_info.ssid.ssid_len;
1421
1422 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1423 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1424 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1425
1426 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1427 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1428 ieee80211_channel_to_frequency(bss_info.bss_chan,
1429 band));
1430
1431 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1432 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1433 0, ie_buf, ie_len, 0, GFP_KERNEL);
1434 cfg80211_put_bss(bss);
1435 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1436
1437 return 0;
1438 }
1439
1440 /*
1441 * This function connects with a BSS.
1442 *
1443 * This function handles both Infra and Ad-Hoc modes. It also performs
1444 * validity checking on the provided parameters, disconnects from the
1445 * current BSS (if any), sets up the association/scan parameters,
1446 * including security settings, and performs specific SSID scan before
1447 * trying to connect.
1448 *
1449 * For Infra mode, the function returns failure if the specified SSID
1450 * is not found in scan table. However, for Ad-Hoc mode, it can create
1451 * the IBSS if it does not exist. On successful completion in either case,
1452 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1453 */
1454 static int
1455 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1456 u8 *bssid, int mode, struct ieee80211_channel *channel,
1457 struct cfg80211_connect_params *sme, bool privacy)
1458 {
1459 struct cfg80211_ssid req_ssid;
1460 int ret, auth_type = 0;
1461 struct cfg80211_bss *bss = NULL;
1462 u8 is_scanning_required = 0, config_bands = 0;
1463
1464 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1465
1466 req_ssid.ssid_len = ssid_len;
1467 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1468 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1469 return -EINVAL;
1470 }
1471
1472 memcpy(req_ssid.ssid, ssid, ssid_len);
1473 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1474 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1475 return -EINVAL;
1476 }
1477
1478 /* disconnect before try to associate */
1479 mwifiex_deauthenticate(priv, NULL);
1480
1481 if (channel) {
1482 if (mode == NL80211_IFTYPE_STATION) {
1483 if (channel->band == IEEE80211_BAND_2GHZ)
1484 config_bands = BAND_B | BAND_G | BAND_GN;
1485 else
1486 config_bands = BAND_A | BAND_AN;
1487
1488 if (!((config_bands | priv->adapter->fw_bands) &
1489 ~priv->adapter->fw_bands))
1490 priv->adapter->config_bands = config_bands;
1491 }
1492 }
1493
1494 /* As this is new association, clear locally stored
1495 * keys and security related flags */
1496 priv->sec_info.wpa_enabled = false;
1497 priv->sec_info.wpa2_enabled = false;
1498 priv->wep_key_curr_index = 0;
1499 priv->sec_info.encryption_mode = 0;
1500 priv->sec_info.is_authtype_auto = 0;
1501 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1502
1503 if (mode == NL80211_IFTYPE_ADHOC) {
1504 /* "privacy" is set only for ad-hoc mode */
1505 if (privacy) {
1506 /*
1507 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1508 * the firmware can find a matching network from the
1509 * scan. The cfg80211 does not give us the encryption
1510 * mode at this stage so just setting it to WEP here.
1511 */
1512 priv->sec_info.encryption_mode =
1513 WLAN_CIPHER_SUITE_WEP104;
1514 priv->sec_info.authentication_mode =
1515 NL80211_AUTHTYPE_OPEN_SYSTEM;
1516 }
1517
1518 goto done;
1519 }
1520
1521 /* Now handle infra mode. "sme" is valid for infra mode only */
1522 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1523 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1524 priv->sec_info.is_authtype_auto = 1;
1525 } else {
1526 auth_type = sme->auth_type;
1527 }
1528
1529 if (sme->crypto.n_ciphers_pairwise) {
1530 priv->sec_info.encryption_mode =
1531 sme->crypto.ciphers_pairwise[0];
1532 priv->sec_info.authentication_mode = auth_type;
1533 }
1534
1535 if (sme->crypto.cipher_group) {
1536 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1537 priv->sec_info.authentication_mode = auth_type;
1538 }
1539 if (sme->ie)
1540 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1541
1542 if (sme->key) {
1543 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1544 dev_dbg(priv->adapter->dev,
1545 "info: setting wep encryption"
1546 " with key len %d\n", sme->key_len);
1547 priv->wep_key_curr_index = sme->key_idx;
1548 ret = mwifiex_set_encode(priv, NULL, sme->key,
1549 sme->key_len, sme->key_idx,
1550 NULL, 0);
1551 }
1552 }
1553 done:
1554 /*
1555 * Scan entries are valid for some time (15 sec). So we can save one
1556 * active scan time if we just try cfg80211_get_bss first. If it fails
1557 * then request scan and cfg80211_get_bss() again for final output.
1558 */
1559 while (1) {
1560 if (is_scanning_required) {
1561 /* Do specific SSID scanning */
1562 if (mwifiex_request_scan(priv, &req_ssid)) {
1563 dev_err(priv->adapter->dev, "scan error\n");
1564 return -EFAULT;
1565 }
1566 }
1567
1568 /* Find the BSS we want using available scan results */
1569 if (mode == NL80211_IFTYPE_ADHOC)
1570 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1571 bssid, ssid, ssid_len,
1572 WLAN_CAPABILITY_IBSS,
1573 WLAN_CAPABILITY_IBSS);
1574 else
1575 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1576 bssid, ssid, ssid_len,
1577 WLAN_CAPABILITY_ESS,
1578 WLAN_CAPABILITY_ESS);
1579
1580 if (!bss) {
1581 if (is_scanning_required) {
1582 dev_warn(priv->adapter->dev,
1583 "assoc: requested bss not found in scan results\n");
1584 break;
1585 }
1586 is_scanning_required = 1;
1587 } else {
1588 dev_dbg(priv->adapter->dev,
1589 "info: trying to associate to '%s' bssid %pM\n",
1590 (char *) req_ssid.ssid, bss->bssid);
1591 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1592 break;
1593 }
1594 }
1595
1596 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1597 if (ret)
1598 return ret;
1599
1600 if (mode == NL80211_IFTYPE_ADHOC) {
1601 /* Inform the BSS information to kernel, otherwise
1602 * kernel will give a panic after successful assoc */
1603 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1604 return -EFAULT;
1605 }
1606
1607 return ret;
1608 }
1609
1610 /*
1611 * CFG802.11 operation handler for association request.
1612 *
1613 * This function does not work when the current mode is set to Ad-Hoc, or
1614 * when there is already an association procedure going on. The given BSS
1615 * information is used to associate.
1616 */
1617 static int
1618 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1619 struct cfg80211_connect_params *sme)
1620 {
1621 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1622 int ret = 0;
1623
1624 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1625 wiphy_err(wiphy, "received infra assoc request "
1626 "when station is in ibss mode\n");
1627 goto done;
1628 }
1629
1630 if (priv->bss_mode == NL80211_IFTYPE_AP) {
1631 wiphy_err(wiphy, "skip association request for AP interface\n");
1632 goto done;
1633 }
1634
1635 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1636 (char *) sme->ssid, sme->bssid);
1637
1638 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1639 priv->bss_mode, sme->channel, sme, 0);
1640 done:
1641 if (!ret) {
1642 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1643 NULL, 0, WLAN_STATUS_SUCCESS,
1644 GFP_KERNEL);
1645 dev_dbg(priv->adapter->dev,
1646 "info: associated to bssid %pM successfully\n",
1647 priv->cfg_bssid);
1648 } else {
1649 dev_dbg(priv->adapter->dev,
1650 "info: association to bssid %pM failed\n",
1651 priv->cfg_bssid);
1652 memset(priv->cfg_bssid, 0, ETH_ALEN);
1653
1654 if (ret > 0)
1655 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1656 NULL, 0, NULL, 0, ret,
1657 GFP_KERNEL);
1658 else
1659 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1660 NULL, 0, NULL, 0,
1661 WLAN_STATUS_UNSPECIFIED_FAILURE,
1662 GFP_KERNEL);
1663 }
1664
1665 return 0;
1666 }
1667
1668 /*
1669 * This function sets following parameters for ibss network.
1670 * - channel
1671 * - start band
1672 * - 11n flag
1673 * - secondary channel offset
1674 */
1675 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1676 struct cfg80211_ibss_params *params)
1677 {
1678 struct wiphy *wiphy = priv->wdev->wiphy;
1679 struct mwifiex_adapter *adapter = priv->adapter;
1680 int index = 0, i;
1681 u8 config_bands = 0;
1682
1683 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1684 if (!params->basic_rates) {
1685 config_bands = BAND_B | BAND_G;
1686 } else {
1687 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1688 /*
1689 * Rates below 6 Mbps in the table are CCK
1690 * rates; 802.11b and from 6 they are OFDM;
1691 * 802.11G
1692 */
1693 if (mwifiex_rates[i].bitrate == 60) {
1694 index = 1 << i;
1695 break;
1696 }
1697 }
1698
1699 if (params->basic_rates < index) {
1700 config_bands = BAND_B;
1701 } else {
1702 config_bands = BAND_G;
1703 if (params->basic_rates % index)
1704 config_bands |= BAND_B;
1705 }
1706 }
1707
1708 if (cfg80211_get_chandef_type(&params->chandef) !=
1709 NL80211_CHAN_NO_HT)
1710 config_bands |= BAND_GN;
1711 } else {
1712 if (cfg80211_get_chandef_type(&params->chandef) !=
1713 NL80211_CHAN_NO_HT)
1714 config_bands = BAND_A;
1715 else
1716 config_bands = BAND_AN | BAND_A;
1717 }
1718
1719 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1720 adapter->config_bands = config_bands;
1721 adapter->adhoc_start_band = config_bands;
1722
1723 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1724 adapter->adhoc_11n_enabled = true;
1725 else
1726 adapter->adhoc_11n_enabled = false;
1727 }
1728
1729 adapter->sec_chan_offset =
1730 mwifiex_chan_type_to_sec_chan_offset(
1731 cfg80211_get_chandef_type(&params->chandef));
1732 priv->adhoc_channel = ieee80211_frequency_to_channel(
1733 params->chandef.chan->center_freq);
1734
1735 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1736 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1737
1738 return 0;
1739 }
1740
1741 /*
1742 * CFG802.11 operation handler to join an IBSS.
1743 *
1744 * This function does not work in any mode other than Ad-Hoc, or if
1745 * a join operation is already in progress.
1746 */
1747 static int
1748 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1749 struct cfg80211_ibss_params *params)
1750 {
1751 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1752 int ret = 0;
1753
1754 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1755 wiphy_err(wiphy, "request to join ibss received "
1756 "when station is not in ibss mode\n");
1757 goto done;
1758 }
1759
1760 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1761 (char *) params->ssid, params->bssid);
1762
1763 mwifiex_set_ibss_params(priv, params);
1764
1765 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1766 params->bssid, priv->bss_mode,
1767 params->chandef.chan, NULL,
1768 params->privacy);
1769 done:
1770 if (!ret) {
1771 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1772 dev_dbg(priv->adapter->dev,
1773 "info: joined/created adhoc network with bssid"
1774 " %pM successfully\n", priv->cfg_bssid);
1775 } else {
1776 dev_dbg(priv->adapter->dev,
1777 "info: failed creating/joining adhoc network\n");
1778 }
1779
1780 return ret;
1781 }
1782
1783 /*
1784 * CFG802.11 operation handler to leave an IBSS.
1785 *
1786 * This function does not work if a leave operation is
1787 * already in progress.
1788 */
1789 static int
1790 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1791 {
1792 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1793
1794 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1795 priv->cfg_bssid);
1796 if (mwifiex_deauthenticate(priv, NULL))
1797 return -EFAULT;
1798
1799 memset(priv->cfg_bssid, 0, ETH_ALEN);
1800
1801 return 0;
1802 }
1803
1804 /*
1805 * CFG802.11 operation handler for scan request.
1806 *
1807 * This function issues a scan request to the firmware based upon
1808 * the user specified scan configuration. On successfull completion,
1809 * it also informs the results.
1810 */
1811 static int
1812 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1813 struct cfg80211_scan_request *request)
1814 {
1815 struct net_device *dev = request->wdev->netdev;
1816 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1817 int i, offset, ret;
1818 struct ieee80211_channel *chan;
1819 struct ieee_types_header *ie;
1820
1821 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1822
1823 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1824 atomic_read(&priv->wmm.tx_pkts_queued) >=
1825 MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1826 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1827 return -EBUSY;
1828 }
1829
1830 if (priv->user_scan_cfg) {
1831 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1832 return -EBUSY;
1833 }
1834
1835 priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1836 GFP_KERNEL);
1837 if (!priv->user_scan_cfg) {
1838 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1839 return -ENOMEM;
1840 }
1841
1842 priv->scan_request = request;
1843
1844 priv->user_scan_cfg->num_ssids = request->n_ssids;
1845 priv->user_scan_cfg->ssid_list = request->ssids;
1846
1847 if (request->ie && request->ie_len) {
1848 offset = 0;
1849 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1850 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1851 continue;
1852 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1853 ie = (struct ieee_types_header *)(request->ie + offset);
1854 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1855 offset += sizeof(*ie) + ie->len;
1856
1857 if (offset >= request->ie_len)
1858 break;
1859 }
1860 }
1861
1862 for (i = 0; i < request->n_channels; i++) {
1863 chan = request->channels[i];
1864 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1865 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1866
1867 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1868 priv->user_scan_cfg->chan_list[i].scan_type =
1869 MWIFIEX_SCAN_TYPE_PASSIVE;
1870 else
1871 priv->user_scan_cfg->chan_list[i].scan_type =
1872 MWIFIEX_SCAN_TYPE_ACTIVE;
1873
1874 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1875 }
1876
1877 ret = mwifiex_scan_networks(priv, priv->user_scan_cfg);
1878 if (ret) {
1879 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1880 priv->scan_request = NULL;
1881 kfree(priv->user_scan_cfg);
1882 priv->user_scan_cfg = NULL;
1883 return ret;
1884 }
1885
1886 if (request->ie && request->ie_len) {
1887 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1888 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1889 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1890 memset(&priv->vs_ie[i].ie, 0,
1891 MWIFIEX_MAX_VSIE_LEN);
1892 }
1893 }
1894 }
1895 return 0;
1896 }
1897
1898 /*
1899 * This function sets up the CFG802.11 specific HT capability fields
1900 * with default values.
1901 *
1902 * The following default values are set -
1903 * - HT Supported = True
1904 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1905 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1906 * - HT Capabilities supported by firmware
1907 * - MCS information, Rx mask = 0xff
1908 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1909 */
1910 static void
1911 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1912 struct mwifiex_private *priv)
1913 {
1914 int rx_mcs_supp;
1915 struct ieee80211_mcs_info mcs_set;
1916 u8 *mcs = (u8 *)&mcs_set;
1917 struct mwifiex_adapter *adapter = priv->adapter;
1918
1919 ht_info->ht_supported = true;
1920 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1921 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1922
1923 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1924
1925 /* Fill HT capability information */
1926 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1927 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1928 else
1929 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1930
1931 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1932 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1933 else
1934 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1935
1936 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1937 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1938 else
1939 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1940
1941 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1942 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1943 else
1944 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1945
1946 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1947 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1948 else
1949 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1950
1951 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
1952 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
1953 else
1954 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
1955
1956 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
1957 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1958 else
1959 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
1960
1961 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
1962 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
1963 else
1964 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
1965
1966 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1967 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1968
1969 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1970 /* Set MCS for 1x1 */
1971 memset(mcs, 0xff, rx_mcs_supp);
1972 /* Clear all the other values */
1973 memset(&mcs[rx_mcs_supp], 0,
1974 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1975 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1976 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1977 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1978 SETHT_MCS32(mcs_set.rx_mask);
1979
1980 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1981
1982 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1983 }
1984
1985 /*
1986 * create a new virtual interface with the given name
1987 */
1988 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1989 const char *name,
1990 enum nl80211_iftype type,
1991 u32 *flags,
1992 struct vif_params *params)
1993 {
1994 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1995 struct mwifiex_private *priv;
1996 struct net_device *dev;
1997 void *mdev_priv;
1998 struct wireless_dev *wdev;
1999
2000 if (!adapter)
2001 return ERR_PTR(-EFAULT);
2002
2003 switch (type) {
2004 case NL80211_IFTYPE_UNSPECIFIED:
2005 case NL80211_IFTYPE_STATION:
2006 case NL80211_IFTYPE_ADHOC:
2007 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2008 if (priv->bss_mode) {
2009 wiphy_err(wiphy,
2010 "cannot create multiple sta/adhoc ifaces\n");
2011 return ERR_PTR(-EINVAL);
2012 }
2013
2014 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2015 if (!wdev)
2016 return ERR_PTR(-ENOMEM);
2017
2018 wdev->wiphy = wiphy;
2019 priv->wdev = wdev;
2020 wdev->iftype = NL80211_IFTYPE_STATION;
2021
2022 if (type == NL80211_IFTYPE_UNSPECIFIED)
2023 priv->bss_mode = NL80211_IFTYPE_STATION;
2024 else
2025 priv->bss_mode = type;
2026
2027 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2028 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2029 priv->bss_priority = 0;
2030 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2031 priv->bss_num = 0;
2032
2033 break;
2034 case NL80211_IFTYPE_AP:
2035 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2036
2037 if (priv->bss_mode) {
2038 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2039 return ERR_PTR(-EINVAL);
2040 }
2041
2042 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2043 if (!wdev)
2044 return ERR_PTR(-ENOMEM);
2045
2046 priv->wdev = wdev;
2047 wdev->wiphy = wiphy;
2048 wdev->iftype = NL80211_IFTYPE_AP;
2049
2050 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2051 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2052 priv->bss_priority = 0;
2053 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2054 priv->bss_started = 0;
2055 priv->bss_num = 0;
2056 priv->bss_mode = type;
2057
2058 break;
2059 case NL80211_IFTYPE_P2P_CLIENT:
2060 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2061
2062 if (priv->bss_mode) {
2063 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2064 return ERR_PTR(-EINVAL);
2065 }
2066
2067 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2068 if (!wdev)
2069 return ERR_PTR(-ENOMEM);
2070
2071 priv->wdev = wdev;
2072 wdev->wiphy = wiphy;
2073
2074 /* At start-up, wpa_supplicant tries to change the interface
2075 * to NL80211_IFTYPE_STATION if it is not managed mode.
2076 * So, we initialize it to STA mode.
2077 */
2078 wdev->iftype = NL80211_IFTYPE_STATION;
2079 priv->bss_mode = NL80211_IFTYPE_STATION;
2080
2081 /* Setting bss_type to P2P tells firmware that this interface
2082 * is receiving P2P peers found during find phase and doing
2083 * action frame handshake.
2084 */
2085 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2086
2087 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2088 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2089 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2090 priv->bss_started = 0;
2091 priv->bss_num = 0;
2092
2093 break;
2094 default:
2095 wiphy_err(wiphy, "type not supported\n");
2096 return ERR_PTR(-EINVAL);
2097 }
2098
2099 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2100 ether_setup, IEEE80211_NUM_ACS, 1);
2101 if (!dev) {
2102 wiphy_err(wiphy, "no memory available for netdevice\n");
2103 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2104 return ERR_PTR(-ENOMEM);
2105 }
2106
2107 mwifiex_init_priv_params(priv, dev);
2108 priv->netdev = dev;
2109
2110 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2111
2112 if (adapter->config_bands & BAND_A)
2113 mwifiex_setup_ht_caps(
2114 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2115
2116 dev_net_set(dev, wiphy_net(wiphy));
2117 dev->ieee80211_ptr = priv->wdev;
2118 dev->ieee80211_ptr->iftype = priv->bss_mode;
2119 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2120 memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
2121 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2122
2123 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2124 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2125 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2126
2127 mdev_priv = netdev_priv(dev);
2128 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2129
2130 SET_NETDEV_DEV(dev, adapter->dev);
2131
2132 /* Register network device */
2133 if (register_netdevice(dev)) {
2134 wiphy_err(wiphy, "cannot register virtual network device\n");
2135 free_netdev(dev);
2136 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2137 return ERR_PTR(-EFAULT);
2138 }
2139
2140 sema_init(&priv->async_sem, 1);
2141
2142 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2143
2144 #ifdef CONFIG_DEBUG_FS
2145 mwifiex_dev_debugfs_init(priv);
2146 #endif
2147 return wdev;
2148 }
2149 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2150
2151 /*
2152 * del_virtual_intf: remove the virtual interface determined by dev
2153 */
2154 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2155 {
2156 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2157
2158 #ifdef CONFIG_DEBUG_FS
2159 mwifiex_dev_debugfs_remove(priv);
2160 #endif
2161
2162 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2163
2164 if (netif_carrier_ok(priv->netdev))
2165 netif_carrier_off(priv->netdev);
2166
2167 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2168 unregister_netdevice(wdev->netdev);
2169
2170 if (wdev->netdev->reg_state == NETREG_UNREGISTERED)
2171 free_netdev(wdev->netdev);
2172
2173 /* Clear the priv in adapter */
2174 priv->netdev = NULL;
2175
2176 priv->media_connected = false;
2177
2178 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2179
2180 return 0;
2181 }
2182 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2183
2184 /* station cfg80211 operations */
2185 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2186 .add_virtual_intf = mwifiex_add_virtual_intf,
2187 .del_virtual_intf = mwifiex_del_virtual_intf,
2188 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2189 .scan = mwifiex_cfg80211_scan,
2190 .connect = mwifiex_cfg80211_connect,
2191 .disconnect = mwifiex_cfg80211_disconnect,
2192 .get_station = mwifiex_cfg80211_get_station,
2193 .dump_station = mwifiex_cfg80211_dump_station,
2194 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2195 .join_ibss = mwifiex_cfg80211_join_ibss,
2196 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2197 .add_key = mwifiex_cfg80211_add_key,
2198 .del_key = mwifiex_cfg80211_del_key,
2199 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2200 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2201 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2202 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2203 .set_default_key = mwifiex_cfg80211_set_default_key,
2204 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2205 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2206 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2207 .start_ap = mwifiex_cfg80211_start_ap,
2208 .stop_ap = mwifiex_cfg80211_stop_ap,
2209 .change_beacon = mwifiex_cfg80211_change_beacon,
2210 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2211 .set_antenna = mwifiex_cfg80211_set_antenna,
2212 };
2213
2214 /*
2215 * This function registers the device with CFG802.11 subsystem.
2216 *
2217 * The function creates the wireless device/wiphy, populates it with
2218 * default parameters and handler function pointers, and finally
2219 * registers the device.
2220 */
2221
2222 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2223 {
2224 int ret;
2225 void *wdev_priv;
2226 struct wiphy *wiphy;
2227 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2228 u8 *country_code;
2229
2230 /* create a new wiphy for use with cfg80211 */
2231 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2232 sizeof(struct mwifiex_adapter *));
2233 if (!wiphy) {
2234 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2235 return -ENOMEM;
2236 }
2237 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2238 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2239 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2240 wiphy->max_remain_on_channel_duration = 5000;
2241 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2242 BIT(NL80211_IFTYPE_ADHOC) |
2243 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2244 BIT(NL80211_IFTYPE_P2P_GO) |
2245 BIT(NL80211_IFTYPE_AP);
2246
2247 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2248 if (adapter->config_bands & BAND_A)
2249 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2250 else
2251 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2252
2253 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2254 wiphy->n_iface_combinations = 1;
2255
2256 /* Initialize cipher suits */
2257 wiphy->cipher_suites = mwifiex_cipher_suites;
2258 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2259
2260 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2261 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2262 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2263 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2264 WIPHY_FLAG_CUSTOM_REGULATORY |
2265 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2266
2267 wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2268
2269 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2270 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2271 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2272
2273 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2274 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2275
2276 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2277 NL80211_FEATURE_INACTIVITY_TIMER |
2278 NL80211_FEATURE_LOW_PRIORITY_SCAN;
2279
2280 /* Reserve space for mwifiex specific private data for BSS */
2281 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2282
2283 wiphy->reg_notifier = mwifiex_reg_notifier;
2284
2285 /* Set struct mwifiex_adapter pointer in wiphy_priv */
2286 wdev_priv = wiphy_priv(wiphy);
2287 *(unsigned long *)wdev_priv = (unsigned long)adapter;
2288
2289 set_wiphy_dev(wiphy, priv->adapter->dev);
2290
2291 ret = wiphy_register(wiphy);
2292 if (ret < 0) {
2293 dev_err(adapter->dev,
2294 "%s: wiphy_register failed: %d\n", __func__, ret);
2295 wiphy_free(wiphy);
2296 return ret;
2297 }
2298 country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
2299 if (country_code)
2300 dev_info(adapter->dev,
2301 "ignoring F/W country code %2.2s\n", country_code);
2302
2303 adapter->wiphy = wiphy;
2304 return ret;
2305 }
kernel source for telekom puls (alcatel/mediatek)