1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, 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 #include "11n.h"
23
24 static char *reg_alpha2;
25 module_param(reg_alpha2, charp, 0);
26
27 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
28 {
29 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
30 BIT(NL80211_IFTYPE_P2P_GO) |
31 BIT(NL80211_IFTYPE_P2P_CLIENT),
32 },
33 {
34 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
35 },
36 };
37
38 static const struct ieee80211_iface_combination
39 mwifiex_iface_comb_ap_sta = {
40 .limits = mwifiex_ap_sta_limits,
41 .num_different_channels = 1,
42 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
43 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
44 .beacon_int_infra_match = true,
45 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
46 BIT(NL80211_CHAN_WIDTH_20) |
47 BIT(NL80211_CHAN_WIDTH_40),
48 };
49
50 static const struct ieee80211_iface_combination
51 mwifiex_iface_comb_ap_sta_vht = {
52 .limits = mwifiex_ap_sta_limits,
53 .num_different_channels = 1,
54 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
55 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
56 .beacon_int_infra_match = true,
57 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
58 BIT(NL80211_CHAN_WIDTH_20) |
59 BIT(NL80211_CHAN_WIDTH_40) |
60 BIT(NL80211_CHAN_WIDTH_80),
61 };
62
63 static const struct
64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
65 .limits = mwifiex_ap_sta_limits,
66 .num_different_channels = 2,
67 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
68 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
69 .beacon_int_infra_match = true,
70 };
71
72 /*
73 * This function maps the nl802.11 channel type into driver channel type.
74 *
75 * The mapping is as follows -
76 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
77 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
78 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
79 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
80 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
81 */
mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
83 {
84 switch (chan_type) {
85 case NL80211_CHAN_NO_HT:
86 case NL80211_CHAN_HT20:
87 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
88 case NL80211_CHAN_HT40PLUS:
89 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
90 case NL80211_CHAN_HT40MINUS:
91 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
92 default:
93 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
94 }
95 }
96
97 /* This function maps IEEE HT secondary channel type to NL80211 channel type
98 */
mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)99 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
100 {
101 switch (second_chan_offset) {
102 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
103 return NL80211_CHAN_HT20;
104 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
105 return NL80211_CHAN_HT40PLUS;
106 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
107 return NL80211_CHAN_HT40MINUS;
108 default:
109 return NL80211_CHAN_HT20;
110 }
111 }
112
113 /*
114 * This function checks whether WEP is set.
115 */
116 static int
mwifiex_is_alg_wep(u32 cipher)117 mwifiex_is_alg_wep(u32 cipher)
118 {
119 switch (cipher) {
120 case WLAN_CIPHER_SUITE_WEP40:
121 case WLAN_CIPHER_SUITE_WEP104:
122 return 1;
123 default:
124 break;
125 }
126
127 return 0;
128 }
129
130 /*
131 * This function retrieves the private structure from kernel wiphy structure.
132 */
mwifiex_cfg80211_get_adapter(struct wiphy * wiphy)133 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
134 {
135 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
136 }
137
138 /*
139 * CFG802.11 operation handler to delete a network key.
140 */
141 static int
mwifiex_cfg80211_del_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool pairwise,const u8 * mac_addr)142 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
143 u8 key_index, bool pairwise, const u8 *mac_addr)
144 {
145 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
146 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
147 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
148
149 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
150 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
151 return -EFAULT;
152 }
153
154 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
155 return 0;
156 }
157
158 /*
159 * This function forms an skb for management frame.
160 */
161 static int
mwifiex_form_mgmt_frame(struct sk_buff * skb,const u8 * buf,size_t len)162 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
163 {
164 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
165 u16 pkt_len;
166 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
167
168 pkt_len = len + ETH_ALEN;
169
170 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
171 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
172 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
173
174 memcpy(skb_push(skb, sizeof(tx_control)),
175 &tx_control, sizeof(tx_control));
176
177 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
178
179 /* Add packet data and address4 */
180 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
181 sizeof(struct ieee80211_hdr_3addr));
182 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
183 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
184 buf + sizeof(struct ieee80211_hdr_3addr),
185 len - sizeof(struct ieee80211_hdr_3addr));
186
187 skb->priority = LOW_PRIO_TID;
188 __net_timestamp(skb);
189
190 return 0;
191 }
192
193 /*
194 * CFG802.11 operation handler to transmit a management frame.
195 */
196 static int
mwifiex_cfg80211_mgmt_tx(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_mgmt_tx_params * params,u64 * cookie)197 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
198 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
199 {
200 const u8 *buf = params->buf;
201 size_t len = params->len;
202 struct sk_buff *skb;
203 u16 pkt_len;
204 const struct ieee80211_mgmt *mgmt;
205 struct mwifiex_txinfo *tx_info;
206 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
207
208 if (!buf || !len) {
209 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
210 return -EFAULT;
211 }
212
213 mgmt = (const struct ieee80211_mgmt *)buf;
214 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
215 ieee80211_is_probe_resp(mgmt->frame_control)) {
216 /* Since we support offload probe resp, we need to skip probe
217 * resp in AP or GO mode */
218 mwifiex_dbg(priv->adapter, INFO,
219 "info: skip to send probe resp in AP or GO mode\n");
220 return 0;
221 }
222
223 pkt_len = len + ETH_ALEN;
224 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
225 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
226 pkt_len + sizeof(pkt_len));
227
228 if (!skb) {
229 mwifiex_dbg(priv->adapter, ERROR,
230 "allocate skb failed for management frame\n");
231 return -ENOMEM;
232 }
233
234 tx_info = MWIFIEX_SKB_TXCB(skb);
235 memset(tx_info, 0, sizeof(*tx_info));
236 tx_info->bss_num = priv->bss_num;
237 tx_info->bss_type = priv->bss_type;
238 tx_info->pkt_len = pkt_len;
239
240 mwifiex_form_mgmt_frame(skb, buf, len);
241 *cookie = prandom_u32() | 1;
242
243 if (ieee80211_is_action(mgmt->frame_control))
244 skb = mwifiex_clone_skb_for_tx_status(priv,
245 skb,
246 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
247 else
248 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
249 GFP_ATOMIC);
250
251 mwifiex_queue_tx_pkt(priv, skb);
252
253 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
254 return 0;
255 }
256
257 /*
258 * CFG802.11 operation handler to register a mgmt frame.
259 */
260 static void
mwifiex_cfg80211_mgmt_frame_register(struct wiphy * wiphy,struct wireless_dev * wdev,u16 frame_type,bool reg)261 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
262 struct wireless_dev *wdev,
263 u16 frame_type, bool reg)
264 {
265 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
266 u32 mask;
267
268 if (reg)
269 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
270 else
271 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
272
273 if (mask != priv->mgmt_frame_mask) {
274 priv->mgmt_frame_mask = mask;
275 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
276 HostCmd_ACT_GEN_SET, 0,
277 &priv->mgmt_frame_mask, false);
278 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
279 }
280 }
281
282 /*
283 * CFG802.11 operation handler to remain on channel.
284 */
285 static int
mwifiex_cfg80211_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct ieee80211_channel * chan,unsigned int duration,u64 * cookie)286 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
287 struct wireless_dev *wdev,
288 struct ieee80211_channel *chan,
289 unsigned int duration, u64 *cookie)
290 {
291 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
292 int ret;
293
294 if (!chan || !cookie) {
295 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
296 return -EINVAL;
297 }
298
299 if (priv->roc_cfg.cookie) {
300 mwifiex_dbg(priv->adapter, INFO,
301 "info: ongoing ROC, cookie = 0x%llx\n",
302 priv->roc_cfg.cookie);
303 return -EBUSY;
304 }
305
306 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
307 duration);
308
309 if (!ret) {
310 *cookie = prandom_u32() | 1;
311 priv->roc_cfg.cookie = *cookie;
312 priv->roc_cfg.chan = *chan;
313
314 cfg80211_ready_on_channel(wdev, *cookie, chan,
315 duration, GFP_ATOMIC);
316
317 mwifiex_dbg(priv->adapter, INFO,
318 "info: ROC, cookie = 0x%llx\n", *cookie);
319 }
320
321 return ret;
322 }
323
324 /*
325 * CFG802.11 operation handler to cancel remain on channel.
326 */
327 static int
mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy * wiphy,struct wireless_dev * wdev,u64 cookie)328 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
329 struct wireless_dev *wdev, u64 cookie)
330 {
331 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
332 int ret;
333
334 if (cookie != priv->roc_cfg.cookie)
335 return -ENOENT;
336
337 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
338 &priv->roc_cfg.chan, 0);
339
340 if (!ret) {
341 cfg80211_remain_on_channel_expired(wdev, cookie,
342 &priv->roc_cfg.chan,
343 GFP_ATOMIC);
344
345 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
346
347 mwifiex_dbg(priv->adapter, INFO,
348 "info: cancel ROC, cookie = 0x%llx\n", cookie);
349 }
350
351 return ret;
352 }
353
354 /*
355 * CFG802.11 operation handler to set Tx power.
356 */
357 static int
mwifiex_cfg80211_set_tx_power(struct wiphy * wiphy,struct wireless_dev * wdev,enum nl80211_tx_power_setting type,int mbm)358 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
359 struct wireless_dev *wdev,
360 enum nl80211_tx_power_setting type,
361 int mbm)
362 {
363 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
364 struct mwifiex_private *priv;
365 struct mwifiex_power_cfg power_cfg;
366 int dbm = MBM_TO_DBM(mbm);
367
368 switch (type) {
369 case NL80211_TX_POWER_FIXED:
370 power_cfg.is_power_auto = 0;
371 power_cfg.is_power_fixed = 1;
372 power_cfg.power_level = dbm;
373 break;
374 case NL80211_TX_POWER_LIMITED:
375 power_cfg.is_power_auto = 0;
376 power_cfg.is_power_fixed = 0;
377 power_cfg.power_level = dbm;
378 break;
379 case NL80211_TX_POWER_AUTOMATIC:
380 power_cfg.is_power_auto = 1;
381 break;
382 }
383
384 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
385
386 return mwifiex_set_tx_power(priv, &power_cfg);
387 }
388
389 /*
390 * CFG802.11 operation handler to set Power Save option.
391 *
392 * The timeout value, if provided, is currently ignored.
393 */
394 static int
mwifiex_cfg80211_set_power_mgmt(struct wiphy * wiphy,struct net_device * dev,bool enabled,int timeout)395 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
396 struct net_device *dev,
397 bool enabled, int timeout)
398 {
399 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
400 u32 ps_mode;
401
402 if (timeout)
403 mwifiex_dbg(priv->adapter, INFO,
404 "info: ignore timeout value for IEEE Power Save\n");
405
406 ps_mode = enabled;
407
408 return mwifiex_drv_set_power(priv, &ps_mode);
409 }
410
411 /*
412 * CFG802.11 operation handler to set the default network key.
413 */
414 static int
mwifiex_cfg80211_set_default_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool unicast,bool multicast)415 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
416 u8 key_index, bool unicast,
417 bool multicast)
418 {
419 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
420
421 /* Return if WEP key not configured */
422 if (!priv->sec_info.wep_enabled)
423 return 0;
424
425 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
426 priv->wep_key_curr_index = key_index;
427 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
428 NULL, 0)) {
429 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
430 return -EFAULT;
431 }
432
433 return 0;
434 }
435
436 /*
437 * CFG802.11 operation handler to add a network key.
438 */
439 static int
mwifiex_cfg80211_add_key(struct wiphy * wiphy,struct net_device * netdev,u8 key_index,bool pairwise,const u8 * mac_addr,struct key_params * params)440 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
441 u8 key_index, bool pairwise, const u8 *mac_addr,
442 struct key_params *params)
443 {
444 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
445 struct mwifiex_wep_key *wep_key;
446 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
447 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
448
449 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
450 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
451 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
452 if (params->key && params->key_len) {
453 wep_key = &priv->wep_key[key_index];
454 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
455 memcpy(wep_key->key_material, params->key,
456 params->key_len);
457 wep_key->key_index = key_index;
458 wep_key->key_length = params->key_len;
459 priv->sec_info.wep_enabled = 1;
460 }
461 return 0;
462 }
463
464 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
465 key_index, peer_mac, 0)) {
466 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
467 return -EFAULT;
468 }
469
470 return 0;
471 }
472
473 /*
474 * This function sends domain information to the firmware.
475 *
476 * The following information are passed to the firmware -
477 * - Country codes
478 * - Sub bands (first channel, number of channels, maximum Tx power)
479 */
mwifiex_send_domain_info_cmd_fw(struct wiphy * wiphy)480 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
481 {
482 u8 no_of_triplet = 0;
483 struct ieee80211_country_ie_triplet *t;
484 u8 no_of_parsed_chan = 0;
485 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
486 u8 i, flag = 0;
487 enum ieee80211_band band;
488 struct ieee80211_supported_band *sband;
489 struct ieee80211_channel *ch;
490 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
491 struct mwifiex_private *priv;
492 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
493
494 /* Set country code */
495 domain_info->country_code[0] = adapter->country_code[0];
496 domain_info->country_code[1] = adapter->country_code[1];
497 domain_info->country_code[2] = ' ';
498
499 band = mwifiex_band_to_radio_type(adapter->config_bands);
500 if (!wiphy->bands[band]) {
501 mwifiex_dbg(adapter, ERROR,
502 "11D: setting domain info in FW\n");
503 return -1;
504 }
505
506 sband = wiphy->bands[band];
507
508 for (i = 0; i < sband->n_channels ; i++) {
509 ch = &sband->channels[i];
510 if (ch->flags & IEEE80211_CHAN_DISABLED)
511 continue;
512
513 if (!flag) {
514 flag = 1;
515 first_chan = (u32) ch->hw_value;
516 next_chan = first_chan;
517 max_pwr = ch->max_power;
518 no_of_parsed_chan = 1;
519 continue;
520 }
521
522 if (ch->hw_value == next_chan + 1 &&
523 ch->max_power == max_pwr) {
524 next_chan++;
525 no_of_parsed_chan++;
526 } else {
527 t = &domain_info->triplet[no_of_triplet];
528 t->chans.first_channel = first_chan;
529 t->chans.num_channels = no_of_parsed_chan;
530 t->chans.max_power = max_pwr;
531 no_of_triplet++;
532 first_chan = (u32) ch->hw_value;
533 next_chan = first_chan;
534 max_pwr = ch->max_power;
535 no_of_parsed_chan = 1;
536 }
537 }
538
539 if (flag) {
540 t = &domain_info->triplet[no_of_triplet];
541 t->chans.first_channel = first_chan;
542 t->chans.num_channels = no_of_parsed_chan;
543 t->chans.max_power = max_pwr;
544 no_of_triplet++;
545 }
546
547 domain_info->no_of_triplet = no_of_triplet;
548
549 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
550
551 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
552 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
553 mwifiex_dbg(adapter, INFO,
554 "11D: setting domain info in FW\n");
555 return -1;
556 }
557
558 return 0;
559 }
560
561 /*
562 * CFG802.11 regulatory domain callback function.
563 *
564 * This function is called when the regulatory domain is changed due to the
565 * following reasons -
566 * - Set by driver
567 * - Set by system core
568 * - Set by user
569 * - Set bt Country IE
570 */
mwifiex_reg_notifier(struct wiphy * wiphy,struct regulatory_request * request)571 static void mwifiex_reg_notifier(struct wiphy *wiphy,
572 struct regulatory_request *request)
573 {
574 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
575 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
576 MWIFIEX_BSS_ROLE_ANY);
577 mwifiex_dbg(adapter, INFO,
578 "info: cfg80211 regulatory domain callback for %c%c\n",
579 request->alpha2[0], request->alpha2[1]);
580
581 switch (request->initiator) {
582 case NL80211_REGDOM_SET_BY_DRIVER:
583 case NL80211_REGDOM_SET_BY_CORE:
584 case NL80211_REGDOM_SET_BY_USER:
585 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
586 break;
587 default:
588 mwifiex_dbg(adapter, ERROR,
589 "unknown regdom initiator: %d\n",
590 request->initiator);
591 return;
592 }
593
594 /* Don't send world or same regdom info to firmware */
595 if (strncmp(request->alpha2, "00", 2) &&
596 strncmp(request->alpha2, adapter->country_code,
597 sizeof(request->alpha2))) {
598 memcpy(adapter->country_code, request->alpha2,
599 sizeof(request->alpha2));
600 mwifiex_send_domain_info_cmd_fw(wiphy);
601 mwifiex_dnld_txpwr_table(priv);
602 }
603 }
604
605 /*
606 * This function sets the fragmentation threshold.
607 *
608 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
609 * and MWIFIEX_FRAG_MAX_VALUE.
610 */
611 static int
mwifiex_set_frag(struct mwifiex_private * priv,u32 frag_thr)612 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
613 {
614 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
615 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
616 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
617
618 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
619 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
620 &frag_thr, true);
621 }
622
623 /*
624 * This function sets the RTS threshold.
625
626 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
627 * and MWIFIEX_RTS_MAX_VALUE.
628 */
629 static int
mwifiex_set_rts(struct mwifiex_private * priv,u32 rts_thr)630 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
631 {
632 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
633 rts_thr = MWIFIEX_RTS_MAX_VALUE;
634
635 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
636 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
637 &rts_thr, true);
638 }
639
640 /*
641 * CFG802.11 operation handler to set wiphy parameters.
642 *
643 * This function can be used to set the RTS threshold and the
644 * Fragmentation threshold of the driver.
645 */
646 static int
mwifiex_cfg80211_set_wiphy_params(struct wiphy * wiphy,u32 changed)647 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
648 {
649 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
650 struct mwifiex_private *priv;
651 struct mwifiex_uap_bss_param *bss_cfg;
652 int ret;
653
654 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
655
656 switch (priv->bss_role) {
657 case MWIFIEX_BSS_ROLE_UAP:
658 if (priv->bss_started) {
659 mwifiex_dbg(adapter, ERROR,
660 "cannot change wiphy params when bss started");
661 return -EINVAL;
662 }
663
664 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
665 if (!bss_cfg)
666 return -ENOMEM;
667
668 mwifiex_set_sys_config_invalid_data(bss_cfg);
669
670 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
671 bss_cfg->rts_threshold = wiphy->rts_threshold;
672 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
673 bss_cfg->frag_threshold = wiphy->frag_threshold;
674 if (changed & WIPHY_PARAM_RETRY_LONG)
675 bss_cfg->retry_limit = wiphy->retry_long;
676
677 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
678 HostCmd_ACT_GEN_SET,
679 UAP_BSS_PARAMS_I, bss_cfg,
680 false);
681
682 kfree(bss_cfg);
683 if (ret) {
684 mwifiex_dbg(adapter, ERROR,
685 "Failed to set wiphy phy params\n");
686 return ret;
687 }
688 break;
689
690 case MWIFIEX_BSS_ROLE_STA:
691 if (priv->media_connected) {
692 mwifiex_dbg(adapter, ERROR,
693 "cannot change wiphy params when connected");
694 return -EINVAL;
695 }
696 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
697 ret = mwifiex_set_rts(priv,
698 wiphy->rts_threshold);
699 if (ret)
700 return ret;
701 }
702 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
703 ret = mwifiex_set_frag(priv,
704 wiphy->frag_threshold);
705 if (ret)
706 return ret;
707 }
708 break;
709 }
710
711 return 0;
712 }
713
714 static int
mwifiex_cfg80211_deinit_p2p(struct mwifiex_private * priv)715 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
716 {
717 u16 mode = P2P_MODE_DISABLE;
718
719 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
720 HostCmd_ACT_GEN_SET, 0, &mode, true))
721 return -1;
722
723 return 0;
724 }
725
726 /*
727 * This function initializes the functionalities for P2P client.
728 * The P2P client initialization sequence is:
729 * disable -> device -> client
730 */
731 static int
mwifiex_cfg80211_init_p2p_client(struct mwifiex_private * priv)732 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
733 {
734 u16 mode;
735
736 if (mwifiex_cfg80211_deinit_p2p(priv))
737 return -1;
738
739 mode = P2P_MODE_DEVICE;
740 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
741 HostCmd_ACT_GEN_SET, 0, &mode, true))
742 return -1;
743
744 mode = P2P_MODE_CLIENT;
745 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
746 HostCmd_ACT_GEN_SET, 0, &mode, true))
747 return -1;
748
749 return 0;
750 }
751
752 /*
753 * This function initializes the functionalities for P2P GO.
754 * The P2P GO initialization sequence is:
755 * disable -> device -> GO
756 */
757 static int
mwifiex_cfg80211_init_p2p_go(struct mwifiex_private * priv)758 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
759 {
760 u16 mode;
761
762 if (mwifiex_cfg80211_deinit_p2p(priv))
763 return -1;
764
765 mode = P2P_MODE_DEVICE;
766 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
767 HostCmd_ACT_GEN_SET, 0, &mode, true))
768 return -1;
769
770 mode = P2P_MODE_GO;
771 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
772 HostCmd_ACT_GEN_SET, 0, &mode, true))
773 return -1;
774
775 return 0;
776 }
777
mwifiex_deinit_priv_params(struct mwifiex_private * priv)778 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
779 {
780 struct mwifiex_adapter *adapter = priv->adapter;
781 unsigned long flags;
782
783 priv->mgmt_frame_mask = 0;
784 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
785 HostCmd_ACT_GEN_SET, 0,
786 &priv->mgmt_frame_mask, false)) {
787 mwifiex_dbg(adapter, ERROR,
788 "could not unregister mgmt frame rx\n");
789 return -1;
790 }
791
792 mwifiex_deauthenticate(priv, NULL);
793
794 spin_lock_irqsave(&adapter->main_proc_lock, flags);
795 adapter->main_locked = true;
796 if (adapter->mwifiex_processing) {
797 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
798 flush_workqueue(adapter->workqueue);
799 } else {
800 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
801 }
802
803 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
804 adapter->rx_locked = true;
805 if (adapter->rx_processing) {
806 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
807 flush_workqueue(adapter->rx_workqueue);
808 } else {
809 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
810 }
811
812 mwifiex_free_priv(priv);
813 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
814 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
815 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
816
817 return 0;
818 }
819
820 static int
mwifiex_init_new_priv_params(struct mwifiex_private * priv,struct net_device * dev,enum nl80211_iftype type)821 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
822 struct net_device *dev,
823 enum nl80211_iftype type)
824 {
825 struct mwifiex_adapter *adapter = priv->adapter;
826 unsigned long flags;
827
828 mwifiex_init_priv(priv);
829
830 priv->bss_mode = type;
831 priv->wdev.iftype = type;
832
833 mwifiex_init_priv_params(priv, priv->netdev);
834 priv->bss_started = 0;
835
836 switch (type) {
837 case NL80211_IFTYPE_STATION:
838 case NL80211_IFTYPE_ADHOC:
839 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
840 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
841 break;
842 case NL80211_IFTYPE_P2P_CLIENT:
843 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
844 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
845 break;
846 case NL80211_IFTYPE_P2P_GO:
847 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
848 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
849 break;
850 case NL80211_IFTYPE_AP:
851 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
852 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
853 break;
854 default:
855 mwifiex_dbg(adapter, ERROR,
856 "%s: changing to %d not supported\n",
857 dev->name, type);
858 return -EOPNOTSUPP;
859 }
860
861 spin_lock_irqsave(&adapter->main_proc_lock, flags);
862 adapter->main_locked = false;
863 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
864
865 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
866 adapter->rx_locked = false;
867 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
868
869 return 0;
870 }
871
872 static int
mwifiex_change_vif_to_p2p(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)873 mwifiex_change_vif_to_p2p(struct net_device *dev,
874 enum nl80211_iftype curr_iftype,
875 enum nl80211_iftype type, u32 *flags,
876 struct vif_params *params)
877 {
878 struct mwifiex_private *priv;
879 struct mwifiex_adapter *adapter;
880
881 priv = mwifiex_netdev_get_priv(dev);
882
883 if (!priv)
884 return -1;
885
886 adapter = priv->adapter;
887
888 if (adapter->curr_iface_comb.p2p_intf ==
889 adapter->iface_limit.p2p_intf) {
890 mwifiex_dbg(adapter, ERROR,
891 "cannot create multiple P2P ifaces\n");
892 return -1;
893 }
894
895 mwifiex_dbg(adapter, INFO,
896 "%s: changing role to p2p\n", dev->name);
897
898 if (mwifiex_deinit_priv_params(priv))
899 return -1;
900 if (mwifiex_init_new_priv_params(priv, dev, type))
901 return -1;
902
903 switch (type) {
904 case NL80211_IFTYPE_P2P_CLIENT:
905 if (mwifiex_cfg80211_init_p2p_client(priv))
906 return -EFAULT;
907 break;
908 case NL80211_IFTYPE_P2P_GO:
909 if (mwifiex_cfg80211_init_p2p_go(priv))
910 return -EFAULT;
911 break;
912 default:
913 mwifiex_dbg(adapter, ERROR,
914 "%s: changing to %d not supported\n",
915 dev->name, type);
916 return -EOPNOTSUPP;
917 }
918
919 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
920 HostCmd_ACT_GEN_SET, 0, NULL, true))
921 return -1;
922
923 if (mwifiex_sta_init_cmd(priv, false, false))
924 return -1;
925
926 switch (curr_iftype) {
927 case NL80211_IFTYPE_STATION:
928 case NL80211_IFTYPE_ADHOC:
929 adapter->curr_iface_comb.sta_intf--;
930 break;
931 case NL80211_IFTYPE_AP:
932 adapter->curr_iface_comb.uap_intf--;
933 break;
934 default:
935 break;
936 }
937
938 adapter->curr_iface_comb.p2p_intf++;
939 dev->ieee80211_ptr->iftype = type;
940
941 return 0;
942 }
943
944 static int
mwifiex_change_vif_to_sta_adhoc(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)945 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
946 enum nl80211_iftype curr_iftype,
947 enum nl80211_iftype type, u32 *flags,
948 struct vif_params *params)
949 {
950 struct mwifiex_private *priv;
951 struct mwifiex_adapter *adapter;
952
953 priv = mwifiex_netdev_get_priv(dev);
954
955 if (!priv)
956 return -1;
957
958 adapter = priv->adapter;
959
960 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
961 curr_iftype != NL80211_IFTYPE_P2P_GO) &&
962 (adapter->curr_iface_comb.sta_intf ==
963 adapter->iface_limit.sta_intf)) {
964 mwifiex_dbg(adapter, ERROR,
965 "cannot create multiple station/adhoc ifaces\n");
966 return -1;
967 }
968
969 if (type == NL80211_IFTYPE_STATION)
970 mwifiex_dbg(adapter, INFO,
971 "%s: changing role to station\n", dev->name);
972 else
973 mwifiex_dbg(adapter, INFO,
974 "%s: changing role to adhoc\n", dev->name);
975
976 if (mwifiex_deinit_priv_params(priv))
977 return -1;
978 if (mwifiex_init_new_priv_params(priv, dev, type))
979 return -1;
980 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
981 HostCmd_ACT_GEN_SET, 0, NULL, true))
982 return -1;
983 if (mwifiex_sta_init_cmd(priv, false, false))
984 return -1;
985
986 switch (curr_iftype) {
987 case NL80211_IFTYPE_P2P_CLIENT:
988 case NL80211_IFTYPE_P2P_GO:
989 adapter->curr_iface_comb.p2p_intf--;
990 break;
991 case NL80211_IFTYPE_AP:
992 adapter->curr_iface_comb.uap_intf--;
993 break;
994 default:
995 break;
996 }
997
998 adapter->curr_iface_comb.sta_intf++;
999 dev->ieee80211_ptr->iftype = type;
1000 return 0;
1001 }
1002
1003 static int
mwifiex_change_vif_to_ap(struct net_device * dev,enum nl80211_iftype curr_iftype,enum nl80211_iftype type,u32 * flags,struct vif_params * params)1004 mwifiex_change_vif_to_ap(struct net_device *dev,
1005 enum nl80211_iftype curr_iftype,
1006 enum nl80211_iftype type, u32 *flags,
1007 struct vif_params *params)
1008 {
1009 struct mwifiex_private *priv;
1010 struct mwifiex_adapter *adapter;
1011
1012 priv = mwifiex_netdev_get_priv(dev);
1013
1014 if (!priv)
1015 return -1;
1016
1017 adapter = priv->adapter;
1018
1019 if (adapter->curr_iface_comb.uap_intf ==
1020 adapter->iface_limit.uap_intf) {
1021 mwifiex_dbg(adapter, ERROR,
1022 "cannot create multiple AP ifaces\n");
1023 return -1;
1024 }
1025
1026 mwifiex_dbg(adapter, INFO,
1027 "%s: changing role to AP\n", dev->name);
1028
1029 if (mwifiex_deinit_priv_params(priv))
1030 return -1;
1031 if (mwifiex_init_new_priv_params(priv, dev, type))
1032 return -1;
1033 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1034 HostCmd_ACT_GEN_SET, 0, NULL, true))
1035 return -1;
1036 if (mwifiex_sta_init_cmd(priv, false, false))
1037 return -1;
1038
1039 switch (curr_iftype) {
1040 case NL80211_IFTYPE_P2P_CLIENT:
1041 case NL80211_IFTYPE_P2P_GO:
1042 adapter->curr_iface_comb.p2p_intf--;
1043 break;
1044 case NL80211_IFTYPE_STATION:
1045 case NL80211_IFTYPE_ADHOC:
1046 adapter->curr_iface_comb.sta_intf--;
1047 break;
1048 default:
1049 break;
1050 }
1051
1052 adapter->curr_iface_comb.uap_intf++;
1053 dev->ieee80211_ptr->iftype = type;
1054 return 0;
1055 }
1056 /*
1057 * CFG802.11 operation handler to change interface type.
1058 */
1059 static int
mwifiex_cfg80211_change_virtual_intf(struct wiphy * wiphy,struct net_device * dev,enum nl80211_iftype type,u32 * flags,struct vif_params * params)1060 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1061 struct net_device *dev,
1062 enum nl80211_iftype type, u32 *flags,
1063 struct vif_params *params)
1064 {
1065 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1066 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1067
1068 switch (curr_iftype) {
1069 case NL80211_IFTYPE_ADHOC:
1070 switch (type) {
1071 case NL80211_IFTYPE_STATION:
1072 priv->bss_mode = type;
1073 priv->sec_info.authentication_mode =
1074 NL80211_AUTHTYPE_OPEN_SYSTEM;
1075 dev->ieee80211_ptr->iftype = type;
1076 mwifiex_deauthenticate(priv, NULL);
1077 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1078 HostCmd_ACT_GEN_SET, 0, NULL,
1079 true);
1080 case NL80211_IFTYPE_P2P_CLIENT:
1081 case NL80211_IFTYPE_P2P_GO:
1082 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1083 type, flags, params);
1084 case NL80211_IFTYPE_AP:
1085 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1086 flags, params);
1087 case NL80211_IFTYPE_UNSPECIFIED:
1088 mwifiex_dbg(priv->adapter, INFO,
1089 "%s: kept type as IBSS\n", dev->name);
1090 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
1091 return 0;
1092 default:
1093 mwifiex_dbg(priv->adapter, ERROR,
1094 "%s: changing to %d not supported\n",
1095 dev->name, type);
1096 return -EOPNOTSUPP;
1097 }
1098 break;
1099 case NL80211_IFTYPE_STATION:
1100 switch (type) {
1101 case NL80211_IFTYPE_ADHOC:
1102 priv->bss_mode = type;
1103 priv->sec_info.authentication_mode =
1104 NL80211_AUTHTYPE_OPEN_SYSTEM;
1105 dev->ieee80211_ptr->iftype = type;
1106 mwifiex_deauthenticate(priv, NULL);
1107 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1108 HostCmd_ACT_GEN_SET, 0, NULL,
1109 true);
1110 case NL80211_IFTYPE_P2P_CLIENT:
1111 case NL80211_IFTYPE_P2P_GO:
1112 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1113 type, flags, params);
1114 case NL80211_IFTYPE_AP:
1115 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1116 flags, params);
1117 case NL80211_IFTYPE_UNSPECIFIED:
1118 mwifiex_dbg(priv->adapter, INFO,
1119 "%s: kept type as STA\n", dev->name);
1120 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
1121 return 0;
1122 default:
1123 mwifiex_dbg(priv->adapter, ERROR,
1124 "%s: changing to %d not supported\n",
1125 dev->name, type);
1126 return -EOPNOTSUPP;
1127 }
1128 break;
1129 case NL80211_IFTYPE_AP:
1130 switch (type) {
1131 case NL80211_IFTYPE_ADHOC:
1132 case NL80211_IFTYPE_STATION:
1133 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1134 type, flags,
1135 params);
1136 break;
1137 case NL80211_IFTYPE_P2P_CLIENT:
1138 case NL80211_IFTYPE_P2P_GO:
1139 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1140 type, flags, params);
1141 case NL80211_IFTYPE_UNSPECIFIED:
1142 mwifiex_dbg(priv->adapter, INFO,
1143 "%s: kept type as AP\n", dev->name);
1144 case NL80211_IFTYPE_AP: /* This shouldn't happen */
1145 return 0;
1146 default:
1147 mwifiex_dbg(priv->adapter, ERROR,
1148 "%s: changing to %d not supported\n",
1149 dev->name, type);
1150 return -EOPNOTSUPP;
1151 }
1152 break;
1153 case NL80211_IFTYPE_P2P_CLIENT:
1154 case NL80211_IFTYPE_P2P_GO:
1155 switch (type) {
1156 case NL80211_IFTYPE_STATION:
1157 if (mwifiex_cfg80211_deinit_p2p(priv))
1158 return -EFAULT;
1159 priv->adapter->curr_iface_comb.p2p_intf--;
1160 priv->adapter->curr_iface_comb.sta_intf++;
1161 dev->ieee80211_ptr->iftype = type;
1162 if (mwifiex_deinit_priv_params(priv))
1163 return -1;
1164 if (mwifiex_init_new_priv_params(priv, dev, type))
1165 return -1;
1166 if (mwifiex_sta_init_cmd(priv, false, false))
1167 return -1;
1168 break;
1169 case NL80211_IFTYPE_ADHOC:
1170 if (mwifiex_cfg80211_deinit_p2p(priv))
1171 return -EFAULT;
1172 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1173 type, flags,
1174 params);
1175 break;
1176 case NL80211_IFTYPE_AP:
1177 if (mwifiex_cfg80211_deinit_p2p(priv))
1178 return -EFAULT;
1179 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1180 flags, params);
1181 case NL80211_IFTYPE_UNSPECIFIED:
1182 mwifiex_dbg(priv->adapter, INFO,
1183 "%s: kept type as P2P\n", dev->name);
1184 case NL80211_IFTYPE_P2P_CLIENT:
1185 case NL80211_IFTYPE_P2P_GO:
1186 return 0;
1187 default:
1188 mwifiex_dbg(priv->adapter, ERROR,
1189 "%s: changing to %d not supported\n",
1190 dev->name, type);
1191 return -EOPNOTSUPP;
1192 }
1193 break;
1194 default:
1195 mwifiex_dbg(priv->adapter, ERROR,
1196 "%s: unknown iftype: %d\n",
1197 dev->name, dev->ieee80211_ptr->iftype);
1198 return -EOPNOTSUPP;
1199 }
1200
1201
1202 return 0;
1203 }
1204
1205 static void
mwifiex_parse_htinfo(struct mwifiex_private * priv,u8 tx_htinfo,struct rate_info * rate)1206 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1207 struct rate_info *rate)
1208 {
1209 struct mwifiex_adapter *adapter = priv->adapter;
1210
1211 if (adapter->is_hw_11ac_capable) {
1212 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1213 if (tx_htinfo & BIT(0)) {
1214 /* HT */
1215 rate->mcs = priv->tx_rate;
1216 rate->flags |= RATE_INFO_FLAGS_MCS;
1217 }
1218 if (tx_htinfo & BIT(1)) {
1219 /* VHT */
1220 rate->mcs = priv->tx_rate & 0x0F;
1221 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1222 }
1223
1224 if (tx_htinfo & (BIT(1) | BIT(0))) {
1225 /* HT or VHT */
1226 switch (tx_htinfo & (BIT(3) | BIT(2))) {
1227 case 0:
1228 rate->bw = RATE_INFO_BW_20;
1229 break;
1230 case (BIT(2)):
1231 rate->bw = RATE_INFO_BW_40;
1232 break;
1233 case (BIT(3)):
1234 rate->bw = RATE_INFO_BW_80;
1235 break;
1236 case (BIT(3) | BIT(2)):
1237 rate->bw = RATE_INFO_BW_160;
1238 break;
1239 }
1240
1241 if (tx_htinfo & BIT(4))
1242 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1243
1244 if ((priv->tx_rate >> 4) == 1)
1245 rate->nss = 2;
1246 else
1247 rate->nss = 1;
1248 }
1249 } else {
1250 /*
1251 * Bit 0 in tx_htinfo indicates that current Tx rate
1252 * is 11n rate. Valid MCS index values for us are 0 to 15.
1253 */
1254 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1255 rate->mcs = priv->tx_rate;
1256 rate->flags |= RATE_INFO_FLAGS_MCS;
1257 rate->bw = RATE_INFO_BW_20;
1258 if (tx_htinfo & BIT(1))
1259 rate->bw = RATE_INFO_BW_40;
1260 if (tx_htinfo & BIT(2))
1261 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1262 }
1263 }
1264 }
1265
1266 /*
1267 * This function dumps the station information on a buffer.
1268 *
1269 * The following information are shown -
1270 * - Total bytes transmitted
1271 * - Total bytes received
1272 * - Total packets transmitted
1273 * - Total packets received
1274 * - Signal quality level
1275 * - Transmission rate
1276 */
1277 static int
mwifiex_dump_station_info(struct mwifiex_private * priv,struct mwifiex_sta_node * node,struct station_info * sinfo)1278 mwifiex_dump_station_info(struct mwifiex_private *priv,
1279 struct mwifiex_sta_node *node,
1280 struct station_info *sinfo)
1281 {
1282 u32 rate;
1283
1284 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1285 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1286 BIT(NL80211_STA_INFO_TX_BITRATE) |
1287 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1288
1289 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1290 if (!node)
1291 return -ENOENT;
1292
1293 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1294 BIT(NL80211_STA_INFO_TX_FAILED);
1295 sinfo->inactive_time =
1296 jiffies_to_msecs(jiffies - node->stats.last_rx);
1297
1298 sinfo->signal = node->stats.rssi;
1299 sinfo->signal_avg = node->stats.rssi;
1300 sinfo->rx_bytes = node->stats.rx_bytes;
1301 sinfo->tx_bytes = node->stats.tx_bytes;
1302 sinfo->rx_packets = node->stats.rx_packets;
1303 sinfo->tx_packets = node->stats.tx_packets;
1304 sinfo->tx_failed = node->stats.tx_failed;
1305
1306 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1307 &sinfo->txrate);
1308 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1309
1310 return 0;
1311 }
1312
1313 /* Get signal information from the firmware */
1314 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1315 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1316 mwifiex_dbg(priv->adapter, ERROR,
1317 "failed to get signal information\n");
1318 return -EFAULT;
1319 }
1320
1321 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1322 mwifiex_dbg(priv->adapter, ERROR,
1323 "getting data rate error\n");
1324 return -EFAULT;
1325 }
1326
1327 /* Get DTIM period information from firmware */
1328 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1329 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1330 &priv->dtim_period, true);
1331
1332 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1333
1334 sinfo->signal_avg = priv->bcn_rssi_avg;
1335 sinfo->rx_bytes = priv->stats.rx_bytes;
1336 sinfo->tx_bytes = priv->stats.tx_bytes;
1337 sinfo->rx_packets = priv->stats.rx_packets;
1338 sinfo->tx_packets = priv->stats.tx_packets;
1339 sinfo->signal = priv->bcn_rssi_avg;
1340 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1341 sinfo->txrate.legacy = rate * 5;
1342
1343 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1344 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1345 sinfo->bss_param.flags = 0;
1346 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1347 WLAN_CAPABILITY_SHORT_PREAMBLE)
1348 sinfo->bss_param.flags |=
1349 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1350 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1351 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1352 sinfo->bss_param.flags |=
1353 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1354 sinfo->bss_param.dtim_period = priv->dtim_period;
1355 sinfo->bss_param.beacon_interval =
1356 priv->curr_bss_params.bss_descriptor.beacon_period;
1357 }
1358
1359 return 0;
1360 }
1361
1362 /*
1363 * CFG802.11 operation handler to get station information.
1364 *
1365 * This function only works in connected mode, and dumps the
1366 * requested station information, if available.
1367 */
1368 static int
mwifiex_cfg80211_get_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_info * sinfo)1369 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1370 const u8 *mac, struct station_info *sinfo)
1371 {
1372 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1373
1374 if (!priv->media_connected)
1375 return -ENOENT;
1376 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1377 return -ENOENT;
1378
1379 return mwifiex_dump_station_info(priv, NULL, sinfo);
1380 }
1381
1382 /*
1383 * CFG802.11 operation handler to dump station information.
1384 */
1385 static int
mwifiex_cfg80211_dump_station(struct wiphy * wiphy,struct net_device * dev,int idx,u8 * mac,struct station_info * sinfo)1386 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1387 int idx, u8 *mac, struct station_info *sinfo)
1388 {
1389 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1390 struct mwifiex_sta_node *node;
1391 int i;
1392
1393 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1394 priv->media_connected && idx == 0) {
1395 ether_addr_copy(mac, priv->cfg_bssid);
1396 return mwifiex_dump_station_info(priv, NULL, sinfo);
1397 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1398 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1399 HostCmd_ACT_GEN_GET, 0, NULL, true);
1400
1401 i = 0;
1402 list_for_each_entry(node, &priv->sta_list, list) {
1403 if (i++ != idx)
1404 continue;
1405 ether_addr_copy(mac, node->mac_addr);
1406 return mwifiex_dump_station_info(priv, node, sinfo);
1407 }
1408 }
1409
1410 return -ENOENT;
1411 }
1412
1413 static int
mwifiex_cfg80211_dump_survey(struct wiphy * wiphy,struct net_device * dev,int idx,struct survey_info * survey)1414 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1415 int idx, struct survey_info *survey)
1416 {
1417 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1418 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1419 enum ieee80211_band band;
1420
1421 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1422
1423 memset(survey, 0, sizeof(struct survey_info));
1424
1425 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1426 priv->media_connected && idx == 0) {
1427 u8 curr_bss_band = priv->curr_bss_params.band;
1428 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1429
1430 band = mwifiex_band_to_radio_type(curr_bss_band);
1431 survey->channel = ieee80211_get_channel(wiphy,
1432 ieee80211_channel_to_frequency(chan, band));
1433
1434 if (priv->bcn_nf_last) {
1435 survey->filled = SURVEY_INFO_NOISE_DBM;
1436 survey->noise = priv->bcn_nf_last;
1437 }
1438 return 0;
1439 }
1440
1441 if (idx >= priv->adapter->num_in_chan_stats)
1442 return -ENOENT;
1443
1444 if (!pchan_stats[idx].cca_scan_dur)
1445 return 0;
1446
1447 band = pchan_stats[idx].bandcfg;
1448 survey->channel = ieee80211_get_channel(wiphy,
1449 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1450 survey->filled = SURVEY_INFO_NOISE_DBM |
1451 SURVEY_INFO_TIME |
1452 SURVEY_INFO_TIME_BUSY;
1453 survey->noise = pchan_stats[idx].noise;
1454 survey->time = pchan_stats[idx].cca_scan_dur;
1455 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1456
1457 return 0;
1458 }
1459
1460 /* Supported rates to be advertised to the cfg80211 */
1461 static struct ieee80211_rate mwifiex_rates[] = {
1462 {.bitrate = 10, .hw_value = 2, },
1463 {.bitrate = 20, .hw_value = 4, },
1464 {.bitrate = 55, .hw_value = 11, },
1465 {.bitrate = 110, .hw_value = 22, },
1466 {.bitrate = 60, .hw_value = 12, },
1467 {.bitrate = 90, .hw_value = 18, },
1468 {.bitrate = 120, .hw_value = 24, },
1469 {.bitrate = 180, .hw_value = 36, },
1470 {.bitrate = 240, .hw_value = 48, },
1471 {.bitrate = 360, .hw_value = 72, },
1472 {.bitrate = 480, .hw_value = 96, },
1473 {.bitrate = 540, .hw_value = 108, },
1474 };
1475
1476 /* Channel definitions to be advertised to cfg80211 */
1477 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1478 {.center_freq = 2412, .hw_value = 1, },
1479 {.center_freq = 2417, .hw_value = 2, },
1480 {.center_freq = 2422, .hw_value = 3, },
1481 {.center_freq = 2427, .hw_value = 4, },
1482 {.center_freq = 2432, .hw_value = 5, },
1483 {.center_freq = 2437, .hw_value = 6, },
1484 {.center_freq = 2442, .hw_value = 7, },
1485 {.center_freq = 2447, .hw_value = 8, },
1486 {.center_freq = 2452, .hw_value = 9, },
1487 {.center_freq = 2457, .hw_value = 10, },
1488 {.center_freq = 2462, .hw_value = 11, },
1489 {.center_freq = 2467, .hw_value = 12, },
1490 {.center_freq = 2472, .hw_value = 13, },
1491 {.center_freq = 2484, .hw_value = 14, },
1492 };
1493
1494 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1495 .channels = mwifiex_channels_2ghz,
1496 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1497 .bitrates = mwifiex_rates,
1498 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1499 };
1500
1501 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1502 {.center_freq = 5040, .hw_value = 8, },
1503 {.center_freq = 5060, .hw_value = 12, },
1504 {.center_freq = 5080, .hw_value = 16, },
1505 {.center_freq = 5170, .hw_value = 34, },
1506 {.center_freq = 5190, .hw_value = 38, },
1507 {.center_freq = 5210, .hw_value = 42, },
1508 {.center_freq = 5230, .hw_value = 46, },
1509 {.center_freq = 5180, .hw_value = 36, },
1510 {.center_freq = 5200, .hw_value = 40, },
1511 {.center_freq = 5220, .hw_value = 44, },
1512 {.center_freq = 5240, .hw_value = 48, },
1513 {.center_freq = 5260, .hw_value = 52, },
1514 {.center_freq = 5280, .hw_value = 56, },
1515 {.center_freq = 5300, .hw_value = 60, },
1516 {.center_freq = 5320, .hw_value = 64, },
1517 {.center_freq = 5500, .hw_value = 100, },
1518 {.center_freq = 5520, .hw_value = 104, },
1519 {.center_freq = 5540, .hw_value = 108, },
1520 {.center_freq = 5560, .hw_value = 112, },
1521 {.center_freq = 5580, .hw_value = 116, },
1522 {.center_freq = 5600, .hw_value = 120, },
1523 {.center_freq = 5620, .hw_value = 124, },
1524 {.center_freq = 5640, .hw_value = 128, },
1525 {.center_freq = 5660, .hw_value = 132, },
1526 {.center_freq = 5680, .hw_value = 136, },
1527 {.center_freq = 5700, .hw_value = 140, },
1528 {.center_freq = 5745, .hw_value = 149, },
1529 {.center_freq = 5765, .hw_value = 153, },
1530 {.center_freq = 5785, .hw_value = 157, },
1531 {.center_freq = 5805, .hw_value = 161, },
1532 {.center_freq = 5825, .hw_value = 165, },
1533 };
1534
1535 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1536 .channels = mwifiex_channels_5ghz,
1537 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1538 .bitrates = mwifiex_rates + 4,
1539 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1540 };
1541
1542
1543 /* Supported crypto cipher suits to be advertised to cfg80211 */
1544 static const u32 mwifiex_cipher_suites[] = {
1545 WLAN_CIPHER_SUITE_WEP40,
1546 WLAN_CIPHER_SUITE_WEP104,
1547 WLAN_CIPHER_SUITE_TKIP,
1548 WLAN_CIPHER_SUITE_CCMP,
1549 WLAN_CIPHER_SUITE_AES_CMAC,
1550 };
1551
1552 /* Supported mgmt frame types to be advertised to cfg80211 */
1553 static const struct ieee80211_txrx_stypes
1554 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1555 [NL80211_IFTYPE_STATION] = {
1556 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1557 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1558 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1559 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1560 },
1561 [NL80211_IFTYPE_AP] = {
1562 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1563 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1564 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1565 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1566 },
1567 [NL80211_IFTYPE_P2P_CLIENT] = {
1568 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1569 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1570 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1571 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1572 },
1573 [NL80211_IFTYPE_P2P_GO] = {
1574 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1575 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1576 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1577 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1578 },
1579 };
1580
1581 /*
1582 * CFG802.11 operation handler for setting bit rates.
1583 *
1584 * Function configures data rates to firmware using bitrate mask
1585 * provided by cfg80211.
1586 */
mwifiex_cfg80211_set_bitrate_mask(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,const struct cfg80211_bitrate_mask * mask)1587 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1588 struct net_device *dev,
1589 const u8 *peer,
1590 const struct cfg80211_bitrate_mask *mask)
1591 {
1592 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1593 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1594 enum ieee80211_band band;
1595 struct mwifiex_adapter *adapter = priv->adapter;
1596
1597 if (!priv->media_connected) {
1598 mwifiex_dbg(adapter, ERROR,
1599 "Can not set Tx data rate in disconnected state\n");
1600 return -EINVAL;
1601 }
1602
1603 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1604
1605 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1606
1607 /* Fill HR/DSSS rates. */
1608 if (band == IEEE80211_BAND_2GHZ)
1609 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1610
1611 /* Fill OFDM rates */
1612 if (band == IEEE80211_BAND_2GHZ)
1613 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1614 else
1615 bitmap_rates[1] = mask->control[band].legacy;
1616
1617 /* Fill HT MCS rates */
1618 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1619 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1620 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1621
1622 /* Fill VHT MCS rates */
1623 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1624 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1625 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1626 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1627 }
1628
1629 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1630 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1631 }
1632
1633 /*
1634 * CFG802.11 operation handler for connection quality monitoring.
1635 *
1636 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1637 * events to FW.
1638 */
mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy * wiphy,struct net_device * dev,s32 rssi_thold,u32 rssi_hyst)1639 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1640 struct net_device *dev,
1641 s32 rssi_thold, u32 rssi_hyst)
1642 {
1643 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1644 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1645
1646 priv->cqm_rssi_thold = rssi_thold;
1647 priv->cqm_rssi_hyst = rssi_hyst;
1648
1649 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1650 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1651
1652 /* Subscribe/unsubscribe low and high rssi events */
1653 if (rssi_thold && rssi_hyst) {
1654 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1655 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1656 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1657 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1658 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1659 return mwifiex_send_cmd(priv,
1660 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1661 0, 0, &subsc_evt, true);
1662 } else {
1663 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1664 return mwifiex_send_cmd(priv,
1665 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1666 0, 0, &subsc_evt, true);
1667 }
1668
1669 return 0;
1670 }
1671
1672 /* cfg80211 operation handler for change_beacon.
1673 * Function retrieves and sets modified management IEs to FW.
1674 */
mwifiex_cfg80211_change_beacon(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_beacon_data * data)1675 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1676 struct net_device *dev,
1677 struct cfg80211_beacon_data *data)
1678 {
1679 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1680
1681 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1682 mwifiex_dbg(priv->adapter, ERROR,
1683 "%s: bss_type mismatched\n", __func__);
1684 return -EINVAL;
1685 }
1686
1687 if (!priv->bss_started) {
1688 mwifiex_dbg(priv->adapter, ERROR,
1689 "%s: bss not started\n", __func__);
1690 return -EINVAL;
1691 }
1692
1693 if (mwifiex_set_mgmt_ies(priv, data)) {
1694 mwifiex_dbg(priv->adapter, ERROR,
1695 "%s: setting mgmt ies failed\n", __func__);
1696 return -EFAULT;
1697 }
1698
1699 return 0;
1700 }
1701
1702 /* cfg80211 operation handler for del_station.
1703 * Function deauthenticates station which value is provided in mac parameter.
1704 * If mac is NULL/broadcast, all stations in associated station list are
1705 * deauthenticated. If bss is not started or there are no stations in
1706 * associated stations list, no action is taken.
1707 */
1708 static int
mwifiex_cfg80211_del_station(struct wiphy * wiphy,struct net_device * dev,struct station_del_parameters * params)1709 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1710 struct station_del_parameters *params)
1711 {
1712 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1713 struct mwifiex_sta_node *sta_node;
1714 u8 deauth_mac[ETH_ALEN];
1715 unsigned long flags;
1716
1717 if (list_empty(&priv->sta_list) || !priv->bss_started)
1718 return 0;
1719
1720 if (!params->mac || is_broadcast_ether_addr(params->mac))
1721 return 0;
1722
1723 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1724 __func__, params->mac);
1725
1726 eth_zero_addr(deauth_mac);
1727
1728 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1729 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1730 if (sta_node)
1731 ether_addr_copy(deauth_mac, params->mac);
1732 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1733
1734 if (is_valid_ether_addr(deauth_mac)) {
1735 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1736 HostCmd_ACT_GEN_SET, 0,
1737 deauth_mac, true))
1738 return -1;
1739 }
1740
1741 return 0;
1742 }
1743
1744 static int
mwifiex_cfg80211_set_antenna(struct wiphy * wiphy,u32 tx_ant,u32 rx_ant)1745 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1746 {
1747 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1748 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1749 MWIFIEX_BSS_ROLE_ANY);
1750 struct mwifiex_ds_ant_cfg ant_cfg;
1751
1752 if (!tx_ant || !rx_ant)
1753 return -EOPNOTSUPP;
1754
1755 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1756 /* Not a MIMO chip. User should provide specific antenna number
1757 * for Tx/Rx path or enable all antennas for diversity
1758 */
1759 if (tx_ant != rx_ant)
1760 return -EOPNOTSUPP;
1761
1762 if ((tx_ant & (tx_ant - 1)) &&
1763 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1764 return -EOPNOTSUPP;
1765
1766 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1767 (priv->adapter->number_of_antenna > 1)) {
1768 tx_ant = RF_ANTENNA_AUTO;
1769 rx_ant = RF_ANTENNA_AUTO;
1770 }
1771 } else {
1772 struct ieee80211_sta_ht_cap *ht_info;
1773 int rx_mcs_supp;
1774 enum ieee80211_band band;
1775
1776 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1777 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1778 if (adapter->is_hw_11ac_capable)
1779 adapter->usr_dot_11ac_mcs_support =
1780 MWIFIEX_11AC_MCS_MAP_1X1;
1781 } else {
1782 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1783 if (adapter->is_hw_11ac_capable)
1784 adapter->usr_dot_11ac_mcs_support =
1785 MWIFIEX_11AC_MCS_MAP_2X2;
1786 }
1787
1788 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1789 if (!adapter->wiphy->bands[band])
1790 continue;
1791
1792 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1793 rx_mcs_supp =
1794 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1795 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1796 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1797 }
1798 }
1799
1800 ant_cfg.tx_ant = tx_ant;
1801 ant_cfg.rx_ant = rx_ant;
1802
1803 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1804 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1805 }
1806
1807 /* cfg80211 operation handler for stop ap.
1808 * Function stops BSS running at uAP interface.
1809 */
mwifiex_cfg80211_stop_ap(struct wiphy * wiphy,struct net_device * dev)1810 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1811 {
1812 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1813
1814 mwifiex_abort_cac(priv);
1815
1816 if (mwifiex_del_mgmt_ies(priv))
1817 mwifiex_dbg(priv->adapter, ERROR,
1818 "Failed to delete mgmt IEs!\n");
1819
1820 priv->ap_11n_enabled = 0;
1821 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1822
1823 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1824 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1825 mwifiex_dbg(priv->adapter, ERROR,
1826 "Failed to stop the BSS\n");
1827 return -1;
1828 }
1829
1830 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1831 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1832 mwifiex_dbg(priv->adapter, ERROR,
1833 "Failed to reset BSS\n");
1834 return -1;
1835 }
1836
1837 if (netif_carrier_ok(priv->netdev))
1838 netif_carrier_off(priv->netdev);
1839 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1840
1841 return 0;
1842 }
1843
1844 /* cfg80211 operation handler for start_ap.
1845 * Function sets beacon period, DTIM period, SSID and security into
1846 * AP config structure.
1847 * AP is configured with these settings and BSS is started.
1848 */
mwifiex_cfg80211_start_ap(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ap_settings * params)1849 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1850 struct net_device *dev,
1851 struct cfg80211_ap_settings *params)
1852 {
1853 struct mwifiex_uap_bss_param *bss_cfg;
1854 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1855
1856 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1857 return -1;
1858
1859 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1860 if (!bss_cfg)
1861 return -ENOMEM;
1862
1863 mwifiex_set_sys_config_invalid_data(bss_cfg);
1864
1865 if (params->beacon_interval)
1866 bss_cfg->beacon_period = params->beacon_interval;
1867 if (params->dtim_period)
1868 bss_cfg->dtim_period = params->dtim_period;
1869
1870 if (params->ssid && params->ssid_len) {
1871 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1872 bss_cfg->ssid.ssid_len = params->ssid_len;
1873 }
1874 if (params->inactivity_timeout > 0) {
1875 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1876 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1877 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1878 }
1879
1880 switch (params->hidden_ssid) {
1881 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1882 bss_cfg->bcast_ssid_ctl = 1;
1883 break;
1884 case NL80211_HIDDEN_SSID_ZERO_LEN:
1885 bss_cfg->bcast_ssid_ctl = 0;
1886 break;
1887 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1888 /* firmware doesn't support this type of hidden SSID */
1889 default:
1890 kfree(bss_cfg);
1891 return -EINVAL;
1892 }
1893
1894 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1895 mwifiex_set_uap_rates(bss_cfg, params);
1896
1897 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1898 kfree(bss_cfg);
1899 mwifiex_dbg(priv->adapter, ERROR,
1900 "Failed to parse secuirty parameters!\n");
1901 return -1;
1902 }
1903
1904 mwifiex_set_ht_params(priv, bss_cfg, params);
1905
1906 if (priv->adapter->is_hw_11ac_capable) {
1907 mwifiex_set_vht_params(priv, bss_cfg, params);
1908 mwifiex_set_vht_width(priv, params->chandef.width,
1909 priv->ap_11ac_enabled);
1910 }
1911
1912 if (priv->ap_11ac_enabled)
1913 mwifiex_set_11ac_ba_params(priv);
1914 else
1915 mwifiex_set_ba_params(priv);
1916
1917 mwifiex_set_wmm_params(priv, bss_cfg, params);
1918
1919 if (mwifiex_is_11h_active(priv))
1920 mwifiex_set_tpc_params(priv, bss_cfg, params);
1921
1922 if (mwifiex_is_11h_active(priv) &&
1923 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef,
1924 priv->bss_mode)) {
1925 mwifiex_dbg(priv->adapter, INFO,
1926 "Disable 11h extensions in FW\n");
1927 if (mwifiex_11h_activate(priv, false)) {
1928 mwifiex_dbg(priv->adapter, ERROR,
1929 "Failed to disable 11h extensions!!");
1930 return -1;
1931 }
1932 priv->state_11h.is_11h_active = false;
1933 }
1934
1935 if (mwifiex_config_start_uap(priv, bss_cfg)) {
1936 mwifiex_dbg(priv->adapter, ERROR,
1937 "Failed to start AP\n");
1938 kfree(bss_cfg);
1939 return -1;
1940 }
1941
1942 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon))
1943 return -1;
1944
1945 if (!netif_carrier_ok(priv->netdev))
1946 netif_carrier_on(priv->netdev);
1947 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1948
1949 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1950 kfree(bss_cfg);
1951 return 0;
1952 }
1953
1954 /*
1955 * CFG802.11 operation handler for disconnection request.
1956 *
1957 * This function does not work when there is already a disconnection
1958 * procedure going on.
1959 */
1960 static int
mwifiex_cfg80211_disconnect(struct wiphy * wiphy,struct net_device * dev,u16 reason_code)1961 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1962 u16 reason_code)
1963 {
1964 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1965
1966 if (mwifiex_deauthenticate(priv, NULL))
1967 return -EFAULT;
1968
1969 mwifiex_dbg(priv->adapter, MSG,
1970 "info: successfully disconnected from %pM:\t"
1971 "reason code %d\n", priv->cfg_bssid, reason_code);
1972
1973 eth_zero_addr(priv->cfg_bssid);
1974 priv->hs2_enabled = false;
1975
1976 return 0;
1977 }
1978
1979 /*
1980 * This function informs the CFG802.11 subsystem of a new IBSS.
1981 *
1982 * The following information are sent to the CFG802.11 subsystem
1983 * to register the new IBSS. If we do not register the new IBSS,
1984 * a kernel panic will result.
1985 * - SSID
1986 * - SSID length
1987 * - BSSID
1988 * - Channel
1989 */
mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private * priv)1990 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1991 {
1992 struct ieee80211_channel *chan;
1993 struct mwifiex_bss_info bss_info;
1994 struct cfg80211_bss *bss;
1995 int ie_len;
1996 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1997 enum ieee80211_band band;
1998
1999 if (mwifiex_get_bss_info(priv, &bss_info))
2000 return -1;
2001
2002 ie_buf[0] = WLAN_EID_SSID;
2003 ie_buf[1] = bss_info.ssid.ssid_len;
2004
2005 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2006 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2007 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2008
2009 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2010 chan = __ieee80211_get_channel(priv->wdev.wiphy,
2011 ieee80211_channel_to_frequency(bss_info.bss_chan,
2012 band));
2013
2014 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2015 CFG80211_BSS_FTYPE_UNKNOWN,
2016 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2017 0, ie_buf, ie_len, 0, GFP_KERNEL);
2018 if (bss) {
2019 cfg80211_put_bss(priv->wdev.wiphy, bss);
2020 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2021 }
2022
2023 return 0;
2024 }
2025
2026 /*
2027 * This function connects with a BSS.
2028 *
2029 * This function handles both Infra and Ad-Hoc modes. It also performs
2030 * validity checking on the provided parameters, disconnects from the
2031 * current BSS (if any), sets up the association/scan parameters,
2032 * including security settings, and performs specific SSID scan before
2033 * trying to connect.
2034 *
2035 * For Infra mode, the function returns failure if the specified SSID
2036 * is not found in scan table. However, for Ad-Hoc mode, it can create
2037 * the IBSS if it does not exist. On successful completion in either case,
2038 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2039 */
2040 static int
mwifiex_cfg80211_assoc(struct mwifiex_private * priv,size_t ssid_len,const u8 * ssid,const u8 * bssid,int mode,struct ieee80211_channel * channel,struct cfg80211_connect_params * sme,bool privacy)2041 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2042 const u8 *ssid, const u8 *bssid, int mode,
2043 struct ieee80211_channel *channel,
2044 struct cfg80211_connect_params *sme, bool privacy)
2045 {
2046 struct cfg80211_ssid req_ssid;
2047 int ret, auth_type = 0;
2048 struct cfg80211_bss *bss = NULL;
2049 u8 is_scanning_required = 0;
2050
2051 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2052
2053 req_ssid.ssid_len = ssid_len;
2054 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2055 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2056 return -EINVAL;
2057 }
2058
2059 memcpy(req_ssid.ssid, ssid, ssid_len);
2060 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2061 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2062 return -EINVAL;
2063 }
2064
2065 /* As this is new association, clear locally stored
2066 * keys and security related flags */
2067 priv->sec_info.wpa_enabled = false;
2068 priv->sec_info.wpa2_enabled = false;
2069 priv->wep_key_curr_index = 0;
2070 priv->sec_info.encryption_mode = 0;
2071 priv->sec_info.is_authtype_auto = 0;
2072 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2073
2074 if (mode == NL80211_IFTYPE_ADHOC) {
2075 /* "privacy" is set only for ad-hoc mode */
2076 if (privacy) {
2077 /*
2078 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2079 * the firmware can find a matching network from the
2080 * scan. The cfg80211 does not give us the encryption
2081 * mode at this stage so just setting it to WEP here.
2082 */
2083 priv->sec_info.encryption_mode =
2084 WLAN_CIPHER_SUITE_WEP104;
2085 priv->sec_info.authentication_mode =
2086 NL80211_AUTHTYPE_OPEN_SYSTEM;
2087 }
2088
2089 goto done;
2090 }
2091
2092 /* Now handle infra mode. "sme" is valid for infra mode only */
2093 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2094 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2095 priv->sec_info.is_authtype_auto = 1;
2096 } else {
2097 auth_type = sme->auth_type;
2098 }
2099
2100 if (sme->crypto.n_ciphers_pairwise) {
2101 priv->sec_info.encryption_mode =
2102 sme->crypto.ciphers_pairwise[0];
2103 priv->sec_info.authentication_mode = auth_type;
2104 }
2105
2106 if (sme->crypto.cipher_group) {
2107 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2108 priv->sec_info.authentication_mode = auth_type;
2109 }
2110 if (sme->ie)
2111 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2112
2113 if (sme->key) {
2114 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2115 mwifiex_dbg(priv->adapter, INFO,
2116 "info: setting wep encryption\t"
2117 "with key len %d\n", sme->key_len);
2118 priv->wep_key_curr_index = sme->key_idx;
2119 ret = mwifiex_set_encode(priv, NULL, sme->key,
2120 sme->key_len, sme->key_idx,
2121 NULL, 0);
2122 }
2123 }
2124 done:
2125 /*
2126 * Scan entries are valid for some time (15 sec). So we can save one
2127 * active scan time if we just try cfg80211_get_bss first. If it fails
2128 * then request scan and cfg80211_get_bss() again for final output.
2129 */
2130 while (1) {
2131 if (is_scanning_required) {
2132 /* Do specific SSID scanning */
2133 if (mwifiex_request_scan(priv, &req_ssid)) {
2134 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2135 return -EFAULT;
2136 }
2137 }
2138
2139 /* Find the BSS we want using available scan results */
2140 if (mode == NL80211_IFTYPE_ADHOC)
2141 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2142 bssid, ssid, ssid_len,
2143 IEEE80211_BSS_TYPE_IBSS,
2144 IEEE80211_PRIVACY_ANY);
2145 else
2146 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2147 bssid, ssid, ssid_len,
2148 IEEE80211_BSS_TYPE_ESS,
2149 IEEE80211_PRIVACY_ANY);
2150
2151 if (!bss) {
2152 if (is_scanning_required) {
2153 mwifiex_dbg(priv->adapter, WARN,
2154 "assoc: requested bss not found in scan results\n");
2155 break;
2156 }
2157 is_scanning_required = 1;
2158 } else {
2159 mwifiex_dbg(priv->adapter, MSG,
2160 "info: trying to associate to '%.*s' bssid %pM\n",
2161 req_ssid.ssid_len, (char *)req_ssid.ssid,
2162 bss->bssid);
2163 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2164 break;
2165 }
2166 }
2167
2168 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2169 if (ret)
2170 return ret;
2171
2172 if (mode == NL80211_IFTYPE_ADHOC) {
2173 /* Inform the BSS information to kernel, otherwise
2174 * kernel will give a panic after successful assoc */
2175 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2176 return -EFAULT;
2177 }
2178
2179 return ret;
2180 }
2181
2182 /*
2183 * CFG802.11 operation handler for association request.
2184 *
2185 * This function does not work when the current mode is set to Ad-Hoc, or
2186 * when there is already an association procedure going on. The given BSS
2187 * information is used to associate.
2188 */
2189 static int
mwifiex_cfg80211_connect(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_connect_params * sme)2190 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2191 struct cfg80211_connect_params *sme)
2192 {
2193 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2194 struct mwifiex_adapter *adapter = priv->adapter;
2195 int ret;
2196
2197 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2198 mwifiex_dbg(adapter, ERROR,
2199 "%s: reject infra assoc request in non-STA role\n",
2200 dev->name);
2201 return -EINVAL;
2202 }
2203
2204 if (priv->wdev.current_bss) {
2205 mwifiex_dbg(adapter, ERROR,
2206 "%s: already connected\n", dev->name);
2207 return -EALREADY;
2208 }
2209
2210 if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2211 mwifiex_dbg(adapter, ERROR,
2212 "%s: Ignore connection.\t"
2213 "Card removed or FW in bad state\n",
2214 dev->name);
2215 return -EFAULT;
2216 }
2217
2218 mwifiex_dbg(adapter, INFO,
2219 "info: Trying to associate to %.*s and bssid %pM\n",
2220 (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2221
2222 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2223 priv->bss_mode, sme->channel, sme, 0);
2224 if (!ret) {
2225 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2226 NULL, 0, WLAN_STATUS_SUCCESS,
2227 GFP_KERNEL);
2228 mwifiex_dbg(priv->adapter, MSG,
2229 "info: associated to bssid %pM successfully\n",
2230 priv->cfg_bssid);
2231 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2232 priv->adapter->auto_tdls &&
2233 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2234 mwifiex_setup_auto_tdls_timer(priv);
2235 } else {
2236 mwifiex_dbg(priv->adapter, ERROR,
2237 "info: association to bssid %pM failed\n",
2238 priv->cfg_bssid);
2239 eth_zero_addr(priv->cfg_bssid);
2240
2241 if (ret > 0)
2242 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2243 NULL, 0, NULL, 0, ret,
2244 GFP_KERNEL);
2245 else
2246 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2247 NULL, 0, NULL, 0,
2248 WLAN_STATUS_UNSPECIFIED_FAILURE,
2249 GFP_KERNEL);
2250 }
2251
2252 return 0;
2253 }
2254
2255 /*
2256 * This function sets following parameters for ibss network.
2257 * - channel
2258 * - start band
2259 * - 11n flag
2260 * - secondary channel offset
2261 */
mwifiex_set_ibss_params(struct mwifiex_private * priv,struct cfg80211_ibss_params * params)2262 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2263 struct cfg80211_ibss_params *params)
2264 {
2265 struct mwifiex_adapter *adapter = priv->adapter;
2266 int index = 0, i;
2267 u8 config_bands = 0;
2268
2269 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2270 if (!params->basic_rates) {
2271 config_bands = BAND_B | BAND_G;
2272 } else {
2273 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2274 /*
2275 * Rates below 6 Mbps in the table are CCK
2276 * rates; 802.11b and from 6 they are OFDM;
2277 * 802.11G
2278 */
2279 if (mwifiex_rates[i].bitrate == 60) {
2280 index = 1 << i;
2281 break;
2282 }
2283 }
2284
2285 if (params->basic_rates < index) {
2286 config_bands = BAND_B;
2287 } else {
2288 config_bands = BAND_G;
2289 if (params->basic_rates % index)
2290 config_bands |= BAND_B;
2291 }
2292 }
2293
2294 if (cfg80211_get_chandef_type(¶ms->chandef) !=
2295 NL80211_CHAN_NO_HT)
2296 config_bands |= BAND_G | BAND_GN;
2297 } else {
2298 if (cfg80211_get_chandef_type(¶ms->chandef) ==
2299 NL80211_CHAN_NO_HT)
2300 config_bands = BAND_A;
2301 else
2302 config_bands = BAND_AN | BAND_A;
2303 }
2304
2305 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2306 adapter->config_bands = config_bands;
2307 adapter->adhoc_start_band = config_bands;
2308
2309 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2310 adapter->adhoc_11n_enabled = true;
2311 else
2312 adapter->adhoc_11n_enabled = false;
2313 }
2314
2315 adapter->sec_chan_offset =
2316 mwifiex_chan_type_to_sec_chan_offset(
2317 cfg80211_get_chandef_type(¶ms->chandef));
2318 priv->adhoc_channel = ieee80211_frequency_to_channel(
2319 params->chandef.chan->center_freq);
2320
2321 mwifiex_dbg(adapter, INFO,
2322 "info: set ibss band %d, chan %d, chan offset %d\n",
2323 config_bands, priv->adhoc_channel,
2324 adapter->sec_chan_offset);
2325
2326 return 0;
2327 }
2328
2329 /*
2330 * CFG802.11 operation handler to join an IBSS.
2331 *
2332 * This function does not work in any mode other than Ad-Hoc, or if
2333 * a join operation is already in progress.
2334 */
2335 static int
mwifiex_cfg80211_join_ibss(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_ibss_params * params)2336 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2337 struct cfg80211_ibss_params *params)
2338 {
2339 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2340 int ret = 0;
2341
2342 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2343 mwifiex_dbg(priv->adapter, ERROR,
2344 "request to join ibss received\t"
2345 "when station is not in ibss mode\n");
2346 goto done;
2347 }
2348
2349 mwifiex_dbg(priv->adapter, MSG,
2350 "info: trying to join to %.*s and bssid %pM\n",
2351 params->ssid_len, (char *)params->ssid, params->bssid);
2352
2353 mwifiex_set_ibss_params(priv, params);
2354
2355 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2356 params->bssid, priv->bss_mode,
2357 params->chandef.chan, NULL,
2358 params->privacy);
2359 done:
2360 if (!ret) {
2361 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2362 params->chandef.chan, GFP_KERNEL);
2363 mwifiex_dbg(priv->adapter, MSG,
2364 "info: joined/created adhoc network with bssid\t"
2365 "%pM successfully\n", priv->cfg_bssid);
2366 } else {
2367 mwifiex_dbg(priv->adapter, ERROR,
2368 "info: failed creating/joining adhoc network\n");
2369 }
2370
2371 return ret;
2372 }
2373
2374 /*
2375 * CFG802.11 operation handler to leave an IBSS.
2376 *
2377 * This function does not work if a leave operation is
2378 * already in progress.
2379 */
2380 static int
mwifiex_cfg80211_leave_ibss(struct wiphy * wiphy,struct net_device * dev)2381 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2382 {
2383 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2384
2385 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2386 priv->cfg_bssid);
2387 if (mwifiex_deauthenticate(priv, NULL))
2388 return -EFAULT;
2389
2390 eth_zero_addr(priv->cfg_bssid);
2391
2392 return 0;
2393 }
2394
2395 /*
2396 * CFG802.11 operation handler for scan request.
2397 *
2398 * This function issues a scan request to the firmware based upon
2399 * the user specified scan configuration. On successful completion,
2400 * it also informs the results.
2401 */
2402 static int
mwifiex_cfg80211_scan(struct wiphy * wiphy,struct cfg80211_scan_request * request)2403 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2404 struct cfg80211_scan_request *request)
2405 {
2406 struct net_device *dev = request->wdev->netdev;
2407 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2408 int i, offset, ret;
2409 struct ieee80211_channel *chan;
2410 struct ieee_types_header *ie;
2411 struct mwifiex_user_scan_cfg *user_scan_cfg;
2412
2413 mwifiex_dbg(priv->adapter, CMD,
2414 "info: received scan request on %s\n", dev->name);
2415
2416 /* Block scan request if scan operation or scan cleanup when interface
2417 * is disabled is in process
2418 */
2419 if (priv->scan_request || priv->scan_aborting) {
2420 mwifiex_dbg(priv->adapter, WARN,
2421 "cmd: Scan already in process..\n");
2422 return -EBUSY;
2423 }
2424
2425 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2426 if (!user_scan_cfg)
2427 return -ENOMEM;
2428
2429 priv->scan_request = request;
2430
2431 user_scan_cfg->num_ssids = request->n_ssids;
2432 user_scan_cfg->ssid_list = request->ssids;
2433
2434 if (request->ie && request->ie_len) {
2435 offset = 0;
2436 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2437 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2438 continue;
2439 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2440 ie = (struct ieee_types_header *)(request->ie + offset);
2441 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2442 offset += sizeof(*ie) + ie->len;
2443
2444 if (offset >= request->ie_len)
2445 break;
2446 }
2447 }
2448
2449 for (i = 0; i < min_t(u32, request->n_channels,
2450 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2451 chan = request->channels[i];
2452 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2453 user_scan_cfg->chan_list[i].radio_type = chan->band;
2454
2455 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2456 user_scan_cfg->chan_list[i].scan_type =
2457 MWIFIEX_SCAN_TYPE_PASSIVE;
2458 else
2459 user_scan_cfg->chan_list[i].scan_type =
2460 MWIFIEX_SCAN_TYPE_ACTIVE;
2461
2462 user_scan_cfg->chan_list[i].scan_time = 0;
2463 }
2464
2465 if (priv->adapter->scan_chan_gap_enabled &&
2466 mwifiex_is_any_intf_active(priv))
2467 user_scan_cfg->scan_chan_gap =
2468 priv->adapter->scan_chan_gap_time;
2469
2470 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2471 kfree(user_scan_cfg);
2472 if (ret) {
2473 mwifiex_dbg(priv->adapter, ERROR,
2474 "scan failed: %d\n", ret);
2475 priv->scan_aborting = false;
2476 priv->scan_request = NULL;
2477 return ret;
2478 }
2479
2480 if (request->ie && request->ie_len) {
2481 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2482 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2483 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2484 memset(&priv->vs_ie[i].ie, 0,
2485 MWIFIEX_MAX_VSIE_LEN);
2486 }
2487 }
2488 }
2489 return 0;
2490 }
2491
mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap * vht_info,struct mwifiex_private * priv)2492 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2493 struct mwifiex_private *priv)
2494 {
2495 struct mwifiex_adapter *adapter = priv->adapter;
2496
2497 vht_info->vht_supported = true;
2498
2499 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2500 /* Update MCS support for VHT */
2501 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2502 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2503 vht_info->vht_mcs.rx_highest = 0;
2504 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2505 adapter->hw_dot_11ac_mcs_support >> 16);
2506 vht_info->vht_mcs.tx_highest = 0;
2507 }
2508
2509 /*
2510 * This function sets up the CFG802.11 specific HT capability fields
2511 * with default values.
2512 *
2513 * The following default values are set -
2514 * - HT Supported = True
2515 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2516 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2517 * - HT Capabilities supported by firmware
2518 * - MCS information, Rx mask = 0xff
2519 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2520 */
2521 static void
mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap * ht_info,struct mwifiex_private * priv)2522 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2523 struct mwifiex_private *priv)
2524 {
2525 int rx_mcs_supp;
2526 struct ieee80211_mcs_info mcs_set;
2527 u8 *mcs = (u8 *)&mcs_set;
2528 struct mwifiex_adapter *adapter = priv->adapter;
2529
2530 ht_info->ht_supported = true;
2531 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2532 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2533
2534 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2535
2536 /* Fill HT capability information */
2537 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2538 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2539 else
2540 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2541
2542 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2543 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2544 else
2545 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2546
2547 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2548 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2549 else
2550 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2551
2552 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2553 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2554 else
2555 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2556
2557 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2558 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2559 else
2560 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2561
2562 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2563 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2564 else
2565 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2566
2567 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2568 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2569 else
2570 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2571
2572 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2573 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2574 else
2575 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2576
2577 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2578 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2579
2580 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2581 /* Set MCS for 1x1/2x2 */
2582 memset(mcs, 0xff, rx_mcs_supp);
2583 /* Clear all the other values */
2584 memset(&mcs[rx_mcs_supp], 0,
2585 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2586 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2587 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2588 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2589 SETHT_MCS32(mcs_set.rx_mask);
2590
2591 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2592
2593 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2594 }
2595
2596 /*
2597 * create a new virtual interface with the given name and name assign type
2598 */
mwifiex_add_virtual_intf(struct wiphy * wiphy,const char * name,unsigned char name_assign_type,enum nl80211_iftype type,u32 * flags,struct vif_params * params)2599 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2600 const char *name,
2601 unsigned char name_assign_type,
2602 enum nl80211_iftype type,
2603 u32 *flags,
2604 struct vif_params *params)
2605 {
2606 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2607 struct mwifiex_private *priv;
2608 struct net_device *dev;
2609 void *mdev_priv;
2610
2611 if (!adapter)
2612 return ERR_PTR(-EFAULT);
2613
2614 switch (type) {
2615 case NL80211_IFTYPE_UNSPECIFIED:
2616 case NL80211_IFTYPE_STATION:
2617 case NL80211_IFTYPE_ADHOC:
2618 if (adapter->curr_iface_comb.sta_intf ==
2619 adapter->iface_limit.sta_intf) {
2620 mwifiex_dbg(adapter, ERROR,
2621 "cannot create multiple sta/adhoc ifaces\n");
2622 return ERR_PTR(-EINVAL);
2623 }
2624
2625 priv = mwifiex_get_unused_priv(adapter);
2626 if (!priv) {
2627 mwifiex_dbg(adapter, ERROR,
2628 "could not get free private struct\n");
2629 return ERR_PTR(-EFAULT);
2630 }
2631
2632 priv->wdev.wiphy = wiphy;
2633 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2634
2635 if (type == NL80211_IFTYPE_UNSPECIFIED)
2636 priv->bss_mode = NL80211_IFTYPE_STATION;
2637 else
2638 priv->bss_mode = type;
2639
2640 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2641 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2642 priv->bss_priority = 0;
2643 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2644 priv->bss_num = adapter->curr_iface_comb.sta_intf;
2645
2646 break;
2647 case NL80211_IFTYPE_AP:
2648 if (adapter->curr_iface_comb.uap_intf ==
2649 adapter->iface_limit.uap_intf) {
2650 mwifiex_dbg(adapter, ERROR,
2651 "cannot create multiple AP ifaces\n");
2652 return ERR_PTR(-EINVAL);
2653 }
2654
2655 priv = mwifiex_get_unused_priv(adapter);
2656 if (!priv) {
2657 mwifiex_dbg(adapter, ERROR,
2658 "could not get free private struct\n");
2659 return ERR_PTR(-EFAULT);
2660 }
2661
2662 priv->wdev.wiphy = wiphy;
2663 priv->wdev.iftype = NL80211_IFTYPE_AP;
2664
2665 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2666 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2667 priv->bss_priority = 0;
2668 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2669 priv->bss_started = 0;
2670 priv->bss_num = adapter->curr_iface_comb.uap_intf;
2671 priv->bss_mode = type;
2672
2673 break;
2674 case NL80211_IFTYPE_P2P_CLIENT:
2675 if (adapter->curr_iface_comb.p2p_intf ==
2676 adapter->iface_limit.p2p_intf) {
2677 mwifiex_dbg(adapter, ERROR,
2678 "cannot create multiple P2P ifaces\n");
2679 return ERR_PTR(-EINVAL);
2680 }
2681
2682 priv = mwifiex_get_unused_priv(adapter);
2683 if (!priv) {
2684 mwifiex_dbg(adapter, ERROR,
2685 "could not get free private struct\n");
2686 return ERR_PTR(-EFAULT);
2687 }
2688
2689 priv->wdev.wiphy = wiphy;
2690 /* At start-up, wpa_supplicant tries to change the interface
2691 * to NL80211_IFTYPE_STATION if it is not managed mode.
2692 */
2693 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2694 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2695
2696 /* Setting bss_type to P2P tells firmware that this interface
2697 * is receiving P2P peers found during find phase and doing
2698 * action frame handshake.
2699 */
2700 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2701
2702 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2703 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2704 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2705 priv->bss_started = 0;
2706 priv->bss_num = adapter->curr_iface_comb.p2p_intf;
2707
2708 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2709 memset(&priv->wdev, 0, sizeof(priv->wdev));
2710 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2711 return ERR_PTR(-EFAULT);
2712 }
2713
2714 break;
2715 default:
2716 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2717 return ERR_PTR(-EINVAL);
2718 }
2719
2720 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2721 name_assign_type, ether_setup,
2722 IEEE80211_NUM_ACS, 1);
2723 if (!dev) {
2724 mwifiex_dbg(adapter, ERROR,
2725 "no memory available for netdevice\n");
2726 memset(&priv->wdev, 0, sizeof(priv->wdev));
2727 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2728 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2729 return ERR_PTR(-ENOMEM);
2730 }
2731
2732 mwifiex_init_priv_params(priv, dev);
2733 priv->netdev = dev;
2734
2735 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2736 if (adapter->is_hw_11ac_capable)
2737 mwifiex_setup_vht_caps(
2738 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2739
2740 if (adapter->config_bands & BAND_A)
2741 mwifiex_setup_ht_caps(
2742 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2743
2744 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2745 mwifiex_setup_vht_caps(
2746 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2747
2748 dev_net_set(dev, wiphy_net(wiphy));
2749 dev->ieee80211_ptr = &priv->wdev;
2750 dev->ieee80211_ptr->iftype = priv->bss_mode;
2751 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2752 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2753
2754 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2755 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2756 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2757 dev->ethtool_ops = &mwifiex_ethtool_ops;
2758
2759 mdev_priv = netdev_priv(dev);
2760 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2761
2762 SET_NETDEV_DEV(dev, adapter->dev);
2763
2764 /* Register network device */
2765 if (register_netdevice(dev)) {
2766 mwifiex_dbg(adapter, ERROR,
2767 "cannot register virtual network device\n");
2768 free_netdev(dev);
2769 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2770 priv->netdev = NULL;
2771 memset(&priv->wdev, 0, sizeof(priv->wdev));
2772 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2773 return ERR_PTR(-EFAULT);
2774 }
2775
2776 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2777 WQ_HIGHPRI |
2778 WQ_MEM_RECLAIM |
2779 WQ_UNBOUND, 1, name);
2780 if (!priv->dfs_cac_workqueue) {
2781 mwifiex_dbg(adapter, ERROR,
2782 "cannot register virtual network device\n");
2783 free_netdev(dev);
2784 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2785 priv->netdev = NULL;
2786 memset(&priv->wdev, 0, sizeof(priv->wdev));
2787 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2788 return ERR_PTR(-ENOMEM);
2789 }
2790
2791 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2792
2793 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2794 WQ_HIGHPRI | WQ_UNBOUND |
2795 WQ_MEM_RECLAIM, 1, name);
2796 if (!priv->dfs_chan_sw_workqueue) {
2797 mwifiex_dbg(adapter, ERROR,
2798 "cannot register virtual network device\n");
2799 free_netdev(dev);
2800 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2801 priv->netdev = NULL;
2802 memset(&priv->wdev, 0, sizeof(priv->wdev));
2803 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2804 return ERR_PTR(-ENOMEM);
2805 }
2806
2807 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2808 mwifiex_dfs_chan_sw_work_queue);
2809
2810 sema_init(&priv->async_sem, 1);
2811
2812 mwifiex_dbg(adapter, INFO,
2813 "info: %s: Marvell 802.11 Adapter\n", dev->name);
2814
2815 #ifdef CONFIG_DEBUG_FS
2816 mwifiex_dev_debugfs_init(priv);
2817 #endif
2818
2819 switch (type) {
2820 case NL80211_IFTYPE_UNSPECIFIED:
2821 case NL80211_IFTYPE_STATION:
2822 case NL80211_IFTYPE_ADHOC:
2823 adapter->curr_iface_comb.sta_intf++;
2824 break;
2825 case NL80211_IFTYPE_AP:
2826 adapter->curr_iface_comb.uap_intf++;
2827 break;
2828 case NL80211_IFTYPE_P2P_CLIENT:
2829 adapter->curr_iface_comb.p2p_intf++;
2830 break;
2831 default:
2832 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2833 return ERR_PTR(-EINVAL);
2834 }
2835
2836 return &priv->wdev;
2837 }
2838 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2839
2840 /*
2841 * del_virtual_intf: remove the virtual interface determined by dev
2842 */
mwifiex_del_virtual_intf(struct wiphy * wiphy,struct wireless_dev * wdev)2843 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2844 {
2845 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2846 struct mwifiex_adapter *adapter = priv->adapter;
2847 struct sk_buff *skb, *tmp;
2848
2849 #ifdef CONFIG_DEBUG_FS
2850 mwifiex_dev_debugfs_remove(priv);
2851 #endif
2852
2853 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2854
2855 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) {
2856 skb_unlink(skb, &priv->bypass_txq);
2857 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
2858 }
2859
2860 if (netif_carrier_ok(priv->netdev))
2861 netif_carrier_off(priv->netdev);
2862
2863 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2864 unregister_netdevice(wdev->netdev);
2865
2866 if (priv->dfs_cac_workqueue) {
2867 flush_workqueue(priv->dfs_cac_workqueue);
2868 destroy_workqueue(priv->dfs_cac_workqueue);
2869 priv->dfs_cac_workqueue = NULL;
2870 }
2871
2872 if (priv->dfs_chan_sw_workqueue) {
2873 flush_workqueue(priv->dfs_chan_sw_workqueue);
2874 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2875 priv->dfs_chan_sw_workqueue = NULL;
2876 }
2877 /* Clear the priv in adapter */
2878 priv->netdev->ieee80211_ptr = NULL;
2879 priv->netdev = NULL;
2880 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2881
2882 priv->media_connected = false;
2883
2884 switch (priv->bss_mode) {
2885 case NL80211_IFTYPE_UNSPECIFIED:
2886 case NL80211_IFTYPE_STATION:
2887 case NL80211_IFTYPE_ADHOC:
2888 adapter->curr_iface_comb.sta_intf--;
2889 break;
2890 case NL80211_IFTYPE_AP:
2891 adapter->curr_iface_comb.uap_intf--;
2892 break;
2893 case NL80211_IFTYPE_P2P_CLIENT:
2894 case NL80211_IFTYPE_P2P_GO:
2895 adapter->curr_iface_comb.p2p_intf--;
2896 break;
2897 default:
2898 mwifiex_dbg(adapter, ERROR,
2899 "del_virtual_intf: type not supported\n");
2900 break;
2901 }
2902
2903 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2904
2905 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2906 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2907 kfree(priv->hist_data);
2908
2909 return 0;
2910 }
2911 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2912
2913 static bool
mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern * pat,s8 * byte_seq,u8 max_byte_seq)2914 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2915 u8 max_byte_seq)
2916 {
2917 int j, k, valid_byte_cnt = 0;
2918 bool dont_care_byte = false;
2919
2920 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2921 for (k = 0; k < 8; k++) {
2922 if (pat->mask[j] & 1 << k) {
2923 memcpy(byte_seq + valid_byte_cnt,
2924 &pat->pattern[j * 8 + k], 1);
2925 valid_byte_cnt++;
2926 if (dont_care_byte)
2927 return false;
2928 } else {
2929 if (valid_byte_cnt)
2930 dont_care_byte = true;
2931 }
2932
2933 if (valid_byte_cnt > max_byte_seq)
2934 return false;
2935 }
2936 }
2937
2938 byte_seq[max_byte_seq] = valid_byte_cnt;
2939
2940 return true;
2941 }
2942
2943 #ifdef CONFIG_PM
mwifiex_set_auto_arp_mef_entry(struct mwifiex_private * priv,struct mwifiex_mef_entry * mef_entry)2944 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2945 struct mwifiex_mef_entry *mef_entry)
2946 {
2947 int i, filt_num = 0, num_ipv4 = 0;
2948 struct in_device *in_dev;
2949 struct in_ifaddr *ifa;
2950 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2951 struct mwifiex_adapter *adapter = priv->adapter;
2952
2953 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2954 mef_entry->action = MEF_ACTION_AUTO_ARP;
2955
2956 /* Enable ARP offload feature */
2957 memset(ips, 0, sizeof(ips));
2958 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2959 if (adapter->priv[i]->netdev) {
2960 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2961 if (!in_dev)
2962 continue;
2963 ifa = in_dev->ifa_list;
2964 if (!ifa || !ifa->ifa_local)
2965 continue;
2966 ips[i] = ifa->ifa_local;
2967 num_ipv4++;
2968 }
2969 }
2970
2971 for (i = 0; i < num_ipv4; i++) {
2972 if (!ips[i])
2973 continue;
2974 mef_entry->filter[filt_num].repeat = 1;
2975 memcpy(mef_entry->filter[filt_num].byte_seq,
2976 (u8 *)&ips[i], sizeof(ips[i]));
2977 mef_entry->filter[filt_num].
2978 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2979 sizeof(ips[i]);
2980 mef_entry->filter[filt_num].offset = 46;
2981 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2982 if (filt_num) {
2983 mef_entry->filter[filt_num].filt_action =
2984 TYPE_OR;
2985 }
2986 filt_num++;
2987 }
2988
2989 mef_entry->filter[filt_num].repeat = 1;
2990 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2991 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2992 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2993 mef_entry->filter[filt_num].offset = 20;
2994 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2995 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2996 }
2997
mwifiex_set_wowlan_mef_entry(struct mwifiex_private * priv,struct mwifiex_ds_mef_cfg * mef_cfg,struct mwifiex_mef_entry * mef_entry,struct cfg80211_wowlan * wowlan)2998 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2999 struct mwifiex_ds_mef_cfg *mef_cfg,
3000 struct mwifiex_mef_entry *mef_entry,
3001 struct cfg80211_wowlan *wowlan)
3002 {
3003 int i, filt_num = 0, ret = 0;
3004 bool first_pat = true;
3005 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3006 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3007 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3008
3009 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3010 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3011
3012 for (i = 0; i < wowlan->n_patterns; i++) {
3013 memset(byte_seq, 0, sizeof(byte_seq));
3014 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3015 byte_seq,
3016 MWIFIEX_MEF_MAX_BYTESEQ)) {
3017 mwifiex_dbg(priv->adapter, ERROR,
3018 "Pattern not supported\n");
3019 return -EOPNOTSUPP;
3020 }
3021
3022 if (!wowlan->patterns[i].pkt_offset) {
3023 if (!(byte_seq[0] & 0x01) &&
3024 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3025 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3026 continue;
3027 } else if (is_broadcast_ether_addr(byte_seq)) {
3028 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3029 continue;
3030 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3031 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3032 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3033 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3034 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3035 continue;
3036 }
3037 }
3038 mef_entry->filter[filt_num].repeat = 1;
3039 mef_entry->filter[filt_num].offset =
3040 wowlan->patterns[i].pkt_offset;
3041 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3042 sizeof(byte_seq));
3043 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3044
3045 if (first_pat)
3046 first_pat = false;
3047 else
3048 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3049
3050 filt_num++;
3051 }
3052
3053 if (wowlan->magic_pkt) {
3054 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3055 mef_entry->filter[filt_num].repeat = 16;
3056 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3057 ETH_ALEN);
3058 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3059 ETH_ALEN;
3060 mef_entry->filter[filt_num].offset = 28;
3061 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3062 if (filt_num)
3063 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3064
3065 filt_num++;
3066 mef_entry->filter[filt_num].repeat = 16;
3067 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3068 ETH_ALEN);
3069 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3070 ETH_ALEN;
3071 mef_entry->filter[filt_num].offset = 56;
3072 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3073 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3074 }
3075 return ret;
3076 }
3077
mwifiex_set_mef_filter(struct mwifiex_private * priv,struct cfg80211_wowlan * wowlan)3078 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3079 struct cfg80211_wowlan *wowlan)
3080 {
3081 int ret = 0, num_entries = 1;
3082 struct mwifiex_ds_mef_cfg mef_cfg;
3083 struct mwifiex_mef_entry *mef_entry;
3084
3085 if (wowlan->n_patterns || wowlan->magic_pkt)
3086 num_entries++;
3087
3088 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3089 if (!mef_entry)
3090 return -ENOMEM;
3091
3092 memset(&mef_cfg, 0, sizeof(mef_cfg));
3093 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3094 MWIFIEX_CRITERIA_UNICAST;
3095 mef_cfg.num_entries = num_entries;
3096 mef_cfg.mef_entry = mef_entry;
3097
3098 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3099
3100 if (wowlan->n_patterns || wowlan->magic_pkt) {
3101 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3102 &mef_entry[1], wowlan);
3103 if (ret)
3104 goto err;
3105 }
3106
3107 if (!mef_cfg.criteria)
3108 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3109 MWIFIEX_CRITERIA_UNICAST |
3110 MWIFIEX_CRITERIA_MULTICAST;
3111
3112 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3113 HostCmd_ACT_GEN_SET, 0,
3114 &mef_cfg, true);
3115
3116 err:
3117 kfree(mef_entry);
3118 return ret;
3119 }
3120
mwifiex_cfg80211_suspend(struct wiphy * wiphy,struct cfg80211_wowlan * wowlan)3121 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3122 struct cfg80211_wowlan *wowlan)
3123 {
3124 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3125 struct mwifiex_ds_hs_cfg hs_cfg;
3126 int i, ret = 0;
3127 struct mwifiex_private *priv;
3128
3129 for (i = 0; i < adapter->priv_num; i++) {
3130 priv = adapter->priv[i];
3131 mwifiex_abort_cac(priv);
3132 }
3133
3134 mwifiex_cancel_all_pending_cmd(adapter);
3135
3136 if (!wowlan) {
3137 mwifiex_dbg(adapter, ERROR,
3138 "None of the WOWLAN triggers enabled\n");
3139 return 0;
3140 }
3141
3142 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3143
3144 if (!priv->media_connected) {
3145 mwifiex_dbg(adapter, ERROR,
3146 "Can not configure WOWLAN in disconnected state\n");
3147 return 0;
3148 }
3149
3150 ret = mwifiex_set_mef_filter(priv, wowlan);
3151 if (ret) {
3152 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3153 return ret;
3154 }
3155
3156 if (wowlan->disconnect) {
3157 memset(&hs_cfg, 0, sizeof(hs_cfg));
3158 hs_cfg.is_invoke_hostcmd = false;
3159 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
3160 hs_cfg.gpio = HS_CFG_GPIO_DEF;
3161 hs_cfg.gap = HS_CFG_GAP_DEF;
3162 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3163 MWIFIEX_SYNC_CMD, &hs_cfg);
3164 if (ret) {
3165 mwifiex_dbg(adapter, ERROR,
3166 "Failed to set HS params\n");
3167 return ret;
3168 }
3169 }
3170
3171 return ret;
3172 }
3173
mwifiex_cfg80211_resume(struct wiphy * wiphy)3174 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3175 {
3176 return 0;
3177 }
3178
mwifiex_cfg80211_set_wakeup(struct wiphy * wiphy,bool enabled)3179 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3180 bool enabled)
3181 {
3182 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3183
3184 device_set_wakeup_enable(adapter->dev, enabled);
3185 }
3186 #endif
3187
mwifiex_get_coalesce_pkt_type(u8 * byte_seq)3188 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3189 {
3190 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3191 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3192 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3193
3194 if ((byte_seq[0] & 0x01) &&
3195 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3196 return PACKET_TYPE_UNICAST;
3197 else if (!memcmp(byte_seq, bc_mac, 4))
3198 return PACKET_TYPE_BROADCAST;
3199 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3200 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3201 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3202 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3203 return PACKET_TYPE_MULTICAST;
3204
3205 return 0;
3206 }
3207
3208 static int
mwifiex_fill_coalesce_rule_info(struct mwifiex_private * priv,struct cfg80211_coalesce_rules * crule,struct mwifiex_coalesce_rule * mrule)3209 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3210 struct cfg80211_coalesce_rules *crule,
3211 struct mwifiex_coalesce_rule *mrule)
3212 {
3213 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3214 struct filt_field_param *param;
3215 int i;
3216
3217 mrule->max_coalescing_delay = crule->delay;
3218
3219 param = mrule->params;
3220
3221 for (i = 0; i < crule->n_patterns; i++) {
3222 memset(byte_seq, 0, sizeof(byte_seq));
3223 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3224 byte_seq,
3225 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3226 mwifiex_dbg(priv->adapter, ERROR,
3227 "Pattern not supported\n");
3228 return -EOPNOTSUPP;
3229 }
3230
3231 if (!crule->patterns[i].pkt_offset) {
3232 u8 pkt_type;
3233
3234 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3235 if (pkt_type && mrule->pkt_type) {
3236 mwifiex_dbg(priv->adapter, ERROR,
3237 "Multiple packet types not allowed\n");
3238 return -EOPNOTSUPP;
3239 } else if (pkt_type) {
3240 mrule->pkt_type = pkt_type;
3241 continue;
3242 }
3243 }
3244
3245 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3246 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3247 else
3248 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3249
3250 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3251 memcpy(param->operand_byte_stream, byte_seq,
3252 param->operand_len);
3253 param->offset = crule->patterns[i].pkt_offset;
3254 param++;
3255
3256 mrule->num_of_fields++;
3257 }
3258
3259 if (!mrule->pkt_type) {
3260 mwifiex_dbg(priv->adapter, ERROR,
3261 "Packet type can not be determined\n");
3262 return -EOPNOTSUPP;
3263 }
3264
3265 return 0;
3266 }
3267
mwifiex_cfg80211_set_coalesce(struct wiphy * wiphy,struct cfg80211_coalesce * coalesce)3268 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3269 struct cfg80211_coalesce *coalesce)
3270 {
3271 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3272 int i, ret;
3273 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3274 struct mwifiex_private *priv =
3275 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3276
3277 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3278 if (!coalesce) {
3279 mwifiex_dbg(adapter, WARN,
3280 "Disable coalesce and reset all previous rules\n");
3281 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3282 HostCmd_ACT_GEN_SET, 0,
3283 &coalesce_cfg, true);
3284 }
3285
3286 coalesce_cfg.num_of_rules = coalesce->n_rules;
3287 for (i = 0; i < coalesce->n_rules; i++) {
3288 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3289 &coalesce_cfg.rule[i]);
3290 if (ret) {
3291 mwifiex_dbg(adapter, ERROR,
3292 "Recheck the patterns provided for rule %d\n",
3293 i + 1);
3294 return ret;
3295 }
3296 }
3297
3298 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3299 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3300 }
3301
3302 /* cfg80211 ops handler for tdls_mgmt.
3303 * Function prepares TDLS action frame packets and forwards them to FW
3304 */
3305 static int
mwifiex_cfg80211_tdls_mgmt(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,u8 action_code,u8 dialog_token,u16 status_code,u32 peer_capability,bool initiator,const u8 * extra_ies,size_t extra_ies_len)3306 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3307 const u8 *peer, u8 action_code, u8 dialog_token,
3308 u16 status_code, u32 peer_capability,
3309 bool initiator, const u8 *extra_ies,
3310 size_t extra_ies_len)
3311 {
3312 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3313 int ret;
3314
3315 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3316 return -ENOTSUPP;
3317
3318 /* make sure we are in station mode and connected */
3319 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3320 return -ENOTSUPP;
3321
3322 switch (action_code) {
3323 case WLAN_TDLS_SETUP_REQUEST:
3324 mwifiex_dbg(priv->adapter, MSG,
3325 "Send TDLS Setup Request to %pM status_code=%d\n",
3326 peer, status_code);
3327 mwifiex_add_auto_tdls_peer(priv, peer);
3328 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3329 dialog_token, status_code,
3330 extra_ies, extra_ies_len);
3331 break;
3332 case WLAN_TDLS_SETUP_RESPONSE:
3333 mwifiex_add_auto_tdls_peer(priv, peer);
3334 mwifiex_dbg(priv->adapter, MSG,
3335 "Send TDLS Setup Response to %pM status_code=%d\n",
3336 peer, status_code);
3337 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3338 dialog_token, status_code,
3339 extra_ies, extra_ies_len);
3340 break;
3341 case WLAN_TDLS_SETUP_CONFIRM:
3342 mwifiex_dbg(priv->adapter, MSG,
3343 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3344 status_code);
3345 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3346 dialog_token, status_code,
3347 extra_ies, extra_ies_len);
3348 break;
3349 case WLAN_TDLS_TEARDOWN:
3350 mwifiex_dbg(priv->adapter, MSG,
3351 "Send TDLS Tear down to %pM\n", peer);
3352 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3353 dialog_token, status_code,
3354 extra_ies, extra_ies_len);
3355 break;
3356 case WLAN_TDLS_DISCOVERY_REQUEST:
3357 mwifiex_dbg(priv->adapter, MSG,
3358 "Send TDLS Discovery Request to %pM\n", peer);
3359 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3360 dialog_token, status_code,
3361 extra_ies, extra_ies_len);
3362 break;
3363 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3364 mwifiex_dbg(priv->adapter, MSG,
3365 "Send TDLS Discovery Response to %pM\n", peer);
3366 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3367 dialog_token, status_code,
3368 extra_ies, extra_ies_len);
3369 break;
3370 default:
3371 mwifiex_dbg(priv->adapter, ERROR,
3372 "Unknown TDLS mgmt/action frame %pM\n", peer);
3373 ret = -EINVAL;
3374 break;
3375 }
3376
3377 return ret;
3378 }
3379
3380 static int
mwifiex_cfg80211_tdls_oper(struct wiphy * wiphy,struct net_device * dev,const u8 * peer,enum nl80211_tdls_operation action)3381 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3382 const u8 *peer, enum nl80211_tdls_operation action)
3383 {
3384 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3385
3386 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3387 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3388 return -ENOTSUPP;
3389
3390 /* make sure we are in station mode and connected */
3391 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3392 return -ENOTSUPP;
3393
3394 mwifiex_dbg(priv->adapter, MSG,
3395 "TDLS peer=%pM, oper=%d\n", peer, action);
3396
3397 switch (action) {
3398 case NL80211_TDLS_ENABLE_LINK:
3399 action = MWIFIEX_TDLS_ENABLE_LINK;
3400 break;
3401 case NL80211_TDLS_DISABLE_LINK:
3402 action = MWIFIEX_TDLS_DISABLE_LINK;
3403 break;
3404 case NL80211_TDLS_TEARDOWN:
3405 /* shouldn't happen!*/
3406 mwifiex_dbg(priv->adapter, ERROR,
3407 "tdls_oper: teardown from driver not supported\n");
3408 return -EINVAL;
3409 case NL80211_TDLS_SETUP:
3410 /* shouldn't happen!*/
3411 mwifiex_dbg(priv->adapter, ERROR,
3412 "tdls_oper: setup from driver not supported\n");
3413 return -EINVAL;
3414 case NL80211_TDLS_DISCOVERY_REQ:
3415 /* shouldn't happen!*/
3416 mwifiex_dbg(priv->adapter, ERROR,
3417 "tdls_oper: discovery from driver not supported\n");
3418 return -EINVAL;
3419 default:
3420 mwifiex_dbg(priv->adapter, ERROR,
3421 "tdls_oper: operation not supported\n");
3422 return -ENOTSUPP;
3423 }
3424
3425 return mwifiex_tdls_oper(priv, peer, action);
3426 }
3427
3428 static int
mwifiex_cfg80211_tdls_chan_switch(struct wiphy * wiphy,struct net_device * dev,const u8 * addr,u8 oper_class,struct cfg80211_chan_def * chandef)3429 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3430 const u8 *addr, u8 oper_class,
3431 struct cfg80211_chan_def *chandef)
3432 {
3433 struct mwifiex_sta_node *sta_ptr;
3434 unsigned long flags;
3435 u16 chan;
3436 u8 second_chan_offset, band;
3437 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3438
3439 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3440 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3441 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3442
3443 if (!sta_ptr) {
3444 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3445 __func__, addr);
3446 return -ENOENT;
3447 }
3448
3449 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3450 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3451 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3452 return -ENOENT;
3453 }
3454
3455 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3456 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3457 wiphy_err(wiphy, "channel switch is running, abort request\n");
3458 return -EALREADY;
3459 }
3460
3461 chan = chandef->chan->hw_value;
3462 second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3463 band = chandef->chan->band;
3464 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3465
3466 return 0;
3467 }
3468
3469 static void
mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy * wiphy,struct net_device * dev,const u8 * addr)3470 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3471 struct net_device *dev,
3472 const u8 *addr)
3473 {
3474 struct mwifiex_sta_node *sta_ptr;
3475 unsigned long flags;
3476 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3477
3478 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3479 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3480 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3481
3482 if (!sta_ptr) {
3483 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3484 __func__, addr);
3485 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3486 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3487 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3488 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3489 addr);
3490 } else
3491 mwifiex_stop_tdls_cs(priv, addr);
3492 }
3493
3494 static int
mwifiex_cfg80211_add_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3495 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3496 const u8 *mac, struct station_parameters *params)
3497 {
3498 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3499
3500 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3501 return -ENOTSUPP;
3502
3503 /* make sure we are in station mode and connected */
3504 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3505 return -ENOTSUPP;
3506
3507 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3508 }
3509
3510 static int
mwifiex_cfg80211_channel_switch(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_csa_settings * params)3511 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3512 struct cfg80211_csa_settings *params)
3513 {
3514 struct ieee_types_header *chsw_ie;
3515 struct ieee80211_channel_sw_ie *channel_sw;
3516 int chsw_msec;
3517 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3518
3519 if (priv->adapter->scan_processing) {
3520 mwifiex_dbg(priv->adapter, ERROR,
3521 "radar detection: scan in process...\n");
3522 return -EBUSY;
3523 }
3524
3525 if (priv->wdev.cac_started)
3526 return -EBUSY;
3527
3528 if (cfg80211_chandef_identical(¶ms->chandef,
3529 &priv->dfs_chandef))
3530 return -EINVAL;
3531
3532 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3533 params->beacon_csa.tail,
3534 params->beacon_csa.tail_len);
3535 if (!chsw_ie) {
3536 mwifiex_dbg(priv->adapter, ERROR,
3537 "Could not parse channel switch announcement IE\n");
3538 return -EINVAL;
3539 }
3540
3541 channel_sw = (void *)(chsw_ie + 1);
3542 if (channel_sw->mode) {
3543 if (netif_carrier_ok(priv->netdev))
3544 netif_carrier_off(priv->netdev);
3545 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3546 }
3547
3548 if (mwifiex_del_mgmt_ies(priv))
3549 mwifiex_dbg(priv->adapter, ERROR,
3550 "Failed to delete mgmt IEs!\n");
3551
3552 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) {
3553 mwifiex_dbg(priv->adapter, ERROR,
3554 "%s: setting mgmt ies failed\n", __func__);
3555 return -EFAULT;
3556 }
3557
3558 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef));
3559 memcpy(&priv->beacon_after, ¶ms->beacon_after,
3560 sizeof(priv->beacon_after));
3561
3562 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3563 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3564 msecs_to_jiffies(chsw_msec));
3565 return 0;
3566 }
3567
mwifiex_cfg80211_get_channel(struct wiphy * wiphy,struct wireless_dev * wdev,struct cfg80211_chan_def * chandef)3568 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3569 struct wireless_dev *wdev,
3570 struct cfg80211_chan_def *chandef)
3571 {
3572 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3573 struct mwifiex_bssdescriptor *curr_bss;
3574 struct ieee80211_channel *chan;
3575 u8 second_chan_offset;
3576 enum nl80211_channel_type chan_type;
3577 enum ieee80211_band band;
3578 int freq;
3579 int ret = -ENODATA;
3580
3581 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3582 cfg80211_chandef_valid(&priv->bss_chandef)) {
3583 *chandef = priv->bss_chandef;
3584 ret = 0;
3585 } else if (priv->media_connected) {
3586 curr_bss = &priv->curr_bss_params.bss_descriptor;
3587 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3588 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3589 chan = ieee80211_get_channel(wiphy, freq);
3590
3591 if (curr_bss->bcn_ht_oper) {
3592 second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
3593 IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3594 chan_type = mwifiex_sec_chan_offset_to_chan_type
3595 (second_chan_offset);
3596 cfg80211_chandef_create(chandef, chan, chan_type);
3597 } else {
3598 cfg80211_chandef_create(chandef, chan,
3599 NL80211_CHAN_NO_HT);
3600 }
3601 ret = 0;
3602 }
3603
3604 return ret;
3605 }
3606
3607 static int
mwifiex_cfg80211_start_radar_detection(struct wiphy * wiphy,struct net_device * dev,struct cfg80211_chan_def * chandef,u32 cac_time_ms)3608 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3609 struct net_device *dev,
3610 struct cfg80211_chan_def *chandef,
3611 u32 cac_time_ms)
3612 {
3613 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3614 struct mwifiex_radar_params radar_params;
3615
3616 if (priv->adapter->scan_processing) {
3617 mwifiex_dbg(priv->adapter, ERROR,
3618 "radar detection: scan already in process...\n");
3619 return -EBUSY;
3620 }
3621
3622 if (!mwifiex_is_11h_active(priv)) {
3623 mwifiex_dbg(priv->adapter, INFO,
3624 "Enable 11h extensions in FW\n");
3625 if (mwifiex_11h_activate(priv, true)) {
3626 mwifiex_dbg(priv->adapter, ERROR,
3627 "Failed to activate 11h extensions!!");
3628 return -1;
3629 }
3630 priv->state_11h.is_11h_active = true;
3631 }
3632
3633 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3634 radar_params.chandef = chandef;
3635 radar_params.cac_time_ms = cac_time_ms;
3636
3637 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3638
3639 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3640 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3641 return -1;
3642
3643 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3644 msecs_to_jiffies(cac_time_ms));
3645 return 0;
3646 }
3647
3648 static int
mwifiex_cfg80211_change_station(struct wiphy * wiphy,struct net_device * dev,const u8 * mac,struct station_parameters * params)3649 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3650 const u8 *mac,
3651 struct station_parameters *params)
3652 {
3653 int ret;
3654 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3655
3656 /* we support change_station handler only for TDLS peers*/
3657 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3658 return -ENOTSUPP;
3659
3660 /* make sure we are in station mode and connected */
3661 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3662 return -ENOTSUPP;
3663
3664 priv->sta_params = params;
3665
3666 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3667 priv->sta_params = NULL;
3668
3669 return ret;
3670 }
3671
3672 /* station cfg80211 operations */
3673 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3674 .add_virtual_intf = mwifiex_add_virtual_intf,
3675 .del_virtual_intf = mwifiex_del_virtual_intf,
3676 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3677 .scan = mwifiex_cfg80211_scan,
3678 .connect = mwifiex_cfg80211_connect,
3679 .disconnect = mwifiex_cfg80211_disconnect,
3680 .get_station = mwifiex_cfg80211_get_station,
3681 .dump_station = mwifiex_cfg80211_dump_station,
3682 .dump_survey = mwifiex_cfg80211_dump_survey,
3683 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3684 .join_ibss = mwifiex_cfg80211_join_ibss,
3685 .leave_ibss = mwifiex_cfg80211_leave_ibss,
3686 .add_key = mwifiex_cfg80211_add_key,
3687 .del_key = mwifiex_cfg80211_del_key,
3688 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3689 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3690 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3691 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3692 .set_default_key = mwifiex_cfg80211_set_default_key,
3693 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3694 .set_tx_power = mwifiex_cfg80211_set_tx_power,
3695 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3696 .start_ap = mwifiex_cfg80211_start_ap,
3697 .stop_ap = mwifiex_cfg80211_stop_ap,
3698 .change_beacon = mwifiex_cfg80211_change_beacon,
3699 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3700 .set_antenna = mwifiex_cfg80211_set_antenna,
3701 .del_station = mwifiex_cfg80211_del_station,
3702 #ifdef CONFIG_PM
3703 .suspend = mwifiex_cfg80211_suspend,
3704 .resume = mwifiex_cfg80211_resume,
3705 .set_wakeup = mwifiex_cfg80211_set_wakeup,
3706 #endif
3707 .set_coalesce = mwifiex_cfg80211_set_coalesce,
3708 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3709 .tdls_oper = mwifiex_cfg80211_tdls_oper,
3710 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
3711 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3712 .add_station = mwifiex_cfg80211_add_station,
3713 .change_station = mwifiex_cfg80211_change_station,
3714 .get_channel = mwifiex_cfg80211_get_channel,
3715 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3716 .channel_switch = mwifiex_cfg80211_channel_switch,
3717 };
3718
3719 #ifdef CONFIG_PM
3720 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3721 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3722 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3723 .pattern_min_len = 1,
3724 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3725 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3726 };
3727 #endif
3728
mwifiex_is_valid_alpha2(const char * alpha2)3729 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3730 {
3731 if (!alpha2 || strlen(alpha2) != 2)
3732 return false;
3733
3734 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3735 return true;
3736
3737 return false;
3738 }
3739
3740 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3741 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3742 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3743 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3744 .pattern_min_len = 1,
3745 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3746 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3747 };
3748
mwifiex_init_channel_scan_gap(struct mwifiex_adapter * adapter)3749 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3750 {
3751 u32 n_channels_bg, n_channels_a = 0;
3752
3753 n_channels_bg = mwifiex_band_2ghz.n_channels;
3754
3755 if (adapter->config_bands & BAND_A)
3756 n_channels_a = mwifiex_band_5ghz.n_channels;
3757
3758 adapter->num_in_chan_stats = n_channels_bg + n_channels_a;
3759 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3760 adapter->num_in_chan_stats);
3761
3762 if (!adapter->chan_stats)
3763 return -ENOMEM;
3764
3765 return 0;
3766 }
3767
3768 /*
3769 * This function registers the device with CFG802.11 subsystem.
3770 *
3771 * The function creates the wireless device/wiphy, populates it with
3772 * default parameters and handler function pointers, and finally
3773 * registers the device.
3774 */
3775
mwifiex_register_cfg80211(struct mwifiex_adapter * adapter)3776 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3777 {
3778 int ret;
3779 void *wdev_priv;
3780 struct wiphy *wiphy;
3781 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3782 u8 *country_code;
3783 u32 thr, retry;
3784
3785 /* create a new wiphy for use with cfg80211 */
3786 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3787 sizeof(struct mwifiex_adapter *));
3788 if (!wiphy) {
3789 mwifiex_dbg(adapter, ERROR,
3790 "%s: creating new wiphy\n", __func__);
3791 return -ENOMEM;
3792 }
3793 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3794 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3795 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3796 wiphy->max_remain_on_channel_duration = 5000;
3797 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3798 BIT(NL80211_IFTYPE_ADHOC) |
3799 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3800 BIT(NL80211_IFTYPE_P2P_GO) |
3801 BIT(NL80211_IFTYPE_AP);
3802
3803 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3804 if (adapter->config_bands & BAND_A)
3805 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3806 else
3807 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3808
3809 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
3810 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
3811 else if (adapter->is_hw_11ac_capable)
3812 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
3813 else
3814 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3815 wiphy->n_iface_combinations = 1;
3816
3817 /* Initialize cipher suits */
3818 wiphy->cipher_suites = mwifiex_cipher_suites;
3819 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3820
3821 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3822 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3823 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3824 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3825 WIPHY_FLAG_AP_UAPSD |
3826 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3827 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
3828 WIPHY_FLAG_PS_ON_BY_DEFAULT;
3829
3830 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3831 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3832 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3833
3834 #ifdef CONFIG_PM
3835 wiphy->wowlan = &mwifiex_wowlan_support;
3836 #endif
3837
3838 wiphy->coalesce = &mwifiex_coalesce_support;
3839
3840 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3841 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3842 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3843
3844 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3845 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3846
3847 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3848 NL80211_FEATURE_INACTIVITY_TIMER |
3849 NL80211_FEATURE_NEED_OBSS_SCAN;
3850
3851 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3852 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
3853
3854 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3855 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3856
3857 /* Reserve space for mwifiex specific private data for BSS */
3858 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3859
3860 wiphy->reg_notifier = mwifiex_reg_notifier;
3861
3862 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3863 wdev_priv = wiphy_priv(wiphy);
3864 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3865
3866 set_wiphy_dev(wiphy, priv->adapter->dev);
3867
3868 ret = wiphy_register(wiphy);
3869 if (ret < 0) {
3870 mwifiex_dbg(adapter, ERROR,
3871 "%s: wiphy_register failed: %d\n", __func__, ret);
3872 wiphy_free(wiphy);
3873 return ret;
3874 }
3875
3876 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3877 mwifiex_dbg(adapter, INFO,
3878 "driver hint alpha2: %2.2s\n", reg_alpha2);
3879 regulatory_hint(wiphy, reg_alpha2);
3880 } else {
3881 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3882 if (country_code)
3883 mwifiex_dbg(adapter, WARN,
3884 "ignoring F/W country code %2.2s\n",
3885 country_code);
3886 }
3887
3888 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3889 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3890 wiphy->frag_threshold = thr;
3891 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3892 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3893 wiphy->rts_threshold = thr;
3894 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3895 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3896 wiphy->retry_short = (u8) retry;
3897 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3898 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3899 wiphy->retry_long = (u8) retry;
3900
3901 adapter->wiphy = wiphy;
3902 return ret;
3903 }
3904