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Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22
23 static char *reg_alpha2;
24 module_param(reg_alpha2, charp, 0);
25
26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
27 {
28 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
29 BIT(NL80211_IFTYPE_P2P_GO) |
30 BIT(NL80211_IFTYPE_P2P_CLIENT),
31 },
32 {
33 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
34 },
35 };
36
37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
38 .limits = mwifiex_ap_sta_limits,
39 .num_different_channels = 1,
40 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
41 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
42 .beacon_int_infra_match = true,
43 };
44
45 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
46 .n_reg_rules = 7,
47 .alpha2 = "99",
48 .reg_rules = {
49 /* Channel 1 - 11 */
50 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
51 /* Channel 12 - 13 */
52 REG_RULE(2467-10, 2472+10, 20, 3, 20,
53 NL80211_RRF_NO_IR),
54 /* Channel 14 */
55 REG_RULE(2484-10, 2484+10, 20, 3, 20,
56 NL80211_RRF_NO_IR |
57 NL80211_RRF_NO_OFDM),
58 /* Channel 36 - 48 */
59 REG_RULE(5180-10, 5240+10, 40, 3, 20,
60 NL80211_RRF_NO_IR),
61 /* Channel 149 - 165 */
62 REG_RULE(5745-10, 5825+10, 40, 3, 20,
63 NL80211_RRF_NO_IR),
64 /* Channel 52 - 64 */
65 REG_RULE(5260-10, 5320+10, 40, 3, 30,
66 NL80211_RRF_NO_IR |
67 NL80211_RRF_DFS),
68 /* Channel 100 - 140 */
69 REG_RULE(5500-10, 5700+10, 40, 3, 30,
70 NL80211_RRF_NO_IR |
71 NL80211_RRF_DFS),
72 }
73 };
74
75 /*
76 * This function maps the nl802.11 channel type into driver channel type.
77 *
78 * The mapping is as follows -
79 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
80 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
81 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
82 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
83 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
84 */
85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
86 {
87 switch (chan_type) {
88 case NL80211_CHAN_NO_HT:
89 case NL80211_CHAN_HT20:
90 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
91 case NL80211_CHAN_HT40PLUS:
92 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
93 case NL80211_CHAN_HT40MINUS:
94 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
95 default:
96 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
97 }
98 }
99
100 /*
101 * This function checks whether WEP is set.
102 */
103 static int
104 mwifiex_is_alg_wep(u32 cipher)
105 {
106 switch (cipher) {
107 case WLAN_CIPHER_SUITE_WEP40:
108 case WLAN_CIPHER_SUITE_WEP104:
109 return 1;
110 default:
111 break;
112 }
113
114 return 0;
115 }
116
117 /*
118 * This function retrieves the private structure from kernel wiphy structure.
119 */
120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
121 {
122 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
123 }
124
125 /*
126 * CFG802.11 operation handler to delete a network key.
127 */
128 static int
129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
130 u8 key_index, bool pairwise, const u8 *mac_addr)
131 {
132 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
133 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
134 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
135
136 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
137 wiphy_err(wiphy, "deleting the crypto keys\n");
138 return -EFAULT;
139 }
140
141 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
142 return 0;
143 }
144
145 /*
146 * This function forms an skb for management frame.
147 */
148 static int
149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
150 {
151 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
152 u16 pkt_len;
153 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
154 struct timeval tv;
155
156 pkt_len = len + ETH_ALEN;
157
158 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
159 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
160 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
161
162 memcpy(skb_push(skb, sizeof(tx_control)),
163 &tx_control, sizeof(tx_control));
164
165 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
166
167 /* Add packet data and address4 */
168 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
169 sizeof(struct ieee80211_hdr_3addr));
170 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
171 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
172 buf + sizeof(struct ieee80211_hdr_3addr),
173 len - sizeof(struct ieee80211_hdr_3addr));
174
175 skb->priority = LOW_PRIO_TID;
176 do_gettimeofday(&tv);
177 skb->tstamp = timeval_to_ktime(tv);
178
179 return 0;
180 }
181
182 /*
183 * CFG802.11 operation handler to transmit a management frame.
184 */
185 static int
186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
187 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
188 {
189 const u8 *buf = params->buf;
190 size_t len = params->len;
191 struct sk_buff *skb;
192 u16 pkt_len;
193 const struct ieee80211_mgmt *mgmt;
194 struct mwifiex_txinfo *tx_info;
195 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
196
197 if (!buf || !len) {
198 wiphy_err(wiphy, "invalid buffer and length\n");
199 return -EFAULT;
200 }
201
202 mgmt = (const struct ieee80211_mgmt *)buf;
203 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
204 ieee80211_is_probe_resp(mgmt->frame_control)) {
205 /* Since we support offload probe resp, we need to skip probe
206 * resp in AP or GO mode */
207 wiphy_dbg(wiphy,
208 "info: skip to send probe resp in AP or GO mode\n");
209 return 0;
210 }
211
212 pkt_len = len + ETH_ALEN;
213 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
214 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
215 pkt_len + sizeof(pkt_len));
216
217 if (!skb) {
218 wiphy_err(wiphy, "allocate skb failed for management frame\n");
219 return -ENOMEM;
220 }
221
222 tx_info = MWIFIEX_SKB_TXCB(skb);
223 memset(tx_info, 0, sizeof(*tx_info));
224 tx_info->bss_num = priv->bss_num;
225 tx_info->bss_type = priv->bss_type;
226 tx_info->pkt_len = pkt_len;
227
228 mwifiex_form_mgmt_frame(skb, buf, len);
229 mwifiex_queue_tx_pkt(priv, skb);
230
231 *cookie = prandom_u32() | 1;
232 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
233
234 wiphy_dbg(wiphy, "info: management frame transmitted\n");
235 return 0;
236 }
237
238 /*
239 * CFG802.11 operation handler to register a mgmt frame.
240 */
241 static void
242 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
243 struct wireless_dev *wdev,
244 u16 frame_type, bool reg)
245 {
246 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
247 u32 mask;
248
249 if (reg)
250 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
251 else
252 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
253
254 if (mask != priv->mgmt_frame_mask) {
255 priv->mgmt_frame_mask = mask;
256 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
257 HostCmd_ACT_GEN_SET, 0,
258 &priv->mgmt_frame_mask, false);
259 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
260 }
261 }
262
263 /*
264 * CFG802.11 operation handler to remain on channel.
265 */
266 static int
267 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
268 struct wireless_dev *wdev,
269 struct ieee80211_channel *chan,
270 unsigned int duration, u64 *cookie)
271 {
272 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
273 int ret;
274
275 if (!chan || !cookie) {
276 wiphy_err(wiphy, "Invalid parameter for ROC\n");
277 return -EINVAL;
278 }
279
280 if (priv->roc_cfg.cookie) {
281 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
282 priv->roc_cfg.cookie);
283 return -EBUSY;
284 }
285
286 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
287 duration);
288
289 if (!ret) {
290 *cookie = prandom_u32() | 1;
291 priv->roc_cfg.cookie = *cookie;
292 priv->roc_cfg.chan = *chan;
293
294 cfg80211_ready_on_channel(wdev, *cookie, chan,
295 duration, GFP_ATOMIC);
296
297 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
298 }
299
300 return ret;
301 }
302
303 /*
304 * CFG802.11 operation handler to cancel remain on channel.
305 */
306 static int
307 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
308 struct wireless_dev *wdev, u64 cookie)
309 {
310 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
311 int ret;
312
313 if (cookie != priv->roc_cfg.cookie)
314 return -ENOENT;
315
316 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
317 &priv->roc_cfg.chan, 0);
318
319 if (!ret) {
320 cfg80211_remain_on_channel_expired(wdev, cookie,
321 &priv->roc_cfg.chan,
322 GFP_ATOMIC);
323
324 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
325
326 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
327 }
328
329 return ret;
330 }
331
332 /*
333 * CFG802.11 operation handler to set Tx power.
334 */
335 static int
336 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
337 struct wireless_dev *wdev,
338 enum nl80211_tx_power_setting type,
339 int mbm)
340 {
341 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
342 struct mwifiex_private *priv;
343 struct mwifiex_power_cfg power_cfg;
344 int dbm = MBM_TO_DBM(mbm);
345
346 if (type == NL80211_TX_POWER_FIXED) {
347 power_cfg.is_power_auto = 0;
348 power_cfg.power_level = dbm;
349 } else {
350 power_cfg.is_power_auto = 1;
351 }
352
353 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
354
355 return mwifiex_set_tx_power(priv, &power_cfg);
356 }
357
358 /*
359 * CFG802.11 operation handler to set Power Save option.
360 *
361 * The timeout value, if provided, is currently ignored.
362 */
363 static int
364 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
365 struct net_device *dev,
366 bool enabled, int timeout)
367 {
368 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
369 u32 ps_mode;
370
371 if (timeout)
372 wiphy_dbg(wiphy,
373 "info: ignore timeout value for IEEE Power Save\n");
374
375 ps_mode = enabled;
376
377 return mwifiex_drv_set_power(priv, &ps_mode);
378 }
379
380 /*
381 * CFG802.11 operation handler to set the default network key.
382 */
383 static int
384 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
385 u8 key_index, bool unicast,
386 bool multicast)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
389
390 /* Return if WEP key not configured */
391 if (!priv->sec_info.wep_enabled)
392 return 0;
393
394 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
395 priv->wep_key_curr_index = key_index;
396 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
397 NULL, 0)) {
398 wiphy_err(wiphy, "set default Tx key index\n");
399 return -EFAULT;
400 }
401
402 return 0;
403 }
404
405 /*
406 * CFG802.11 operation handler to add a network key.
407 */
408 static int
409 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
410 u8 key_index, bool pairwise, const u8 *mac_addr,
411 struct key_params *params)
412 {
413 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
414 struct mwifiex_wep_key *wep_key;
415 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
416 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
417
418 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
419 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
420 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
421 if (params->key && params->key_len) {
422 wep_key = &priv->wep_key[key_index];
423 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
424 memcpy(wep_key->key_material, params->key,
425 params->key_len);
426 wep_key->key_index = key_index;
427 wep_key->key_length = params->key_len;
428 priv->sec_info.wep_enabled = 1;
429 }
430 return 0;
431 }
432
433 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
434 key_index, peer_mac, 0)) {
435 wiphy_err(wiphy, "crypto keys added\n");
436 return -EFAULT;
437 }
438
439 return 0;
440 }
441
442 /*
443 * This function sends domain information to the firmware.
444 *
445 * The following information are passed to the firmware -
446 * - Country codes
447 * - Sub bands (first channel, number of channels, maximum Tx power)
448 */
449 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
450 {
451 u8 no_of_triplet = 0;
452 struct ieee80211_country_ie_triplet *t;
453 u8 no_of_parsed_chan = 0;
454 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
455 u8 i, flag = 0;
456 enum ieee80211_band band;
457 struct ieee80211_supported_band *sband;
458 struct ieee80211_channel *ch;
459 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
460 struct mwifiex_private *priv;
461 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
462
463 /* Set country code */
464 domain_info->country_code[0] = adapter->country_code[0];
465 domain_info->country_code[1] = adapter->country_code[1];
466 domain_info->country_code[2] = ' ';
467
468 band = mwifiex_band_to_radio_type(adapter->config_bands);
469 if (!wiphy->bands[band]) {
470 wiphy_err(wiphy, "11D: setting domain info in FW\n");
471 return -1;
472 }
473
474 sband = wiphy->bands[band];
475
476 for (i = 0; i < sband->n_channels ; i++) {
477 ch = &sband->channels[i];
478 if (ch->flags & IEEE80211_CHAN_DISABLED)
479 continue;
480
481 if (!flag) {
482 flag = 1;
483 first_chan = (u32) ch->hw_value;
484 next_chan = first_chan;
485 max_pwr = ch->max_power;
486 no_of_parsed_chan = 1;
487 continue;
488 }
489
490 if (ch->hw_value == next_chan + 1 &&
491 ch->max_power == max_pwr) {
492 next_chan++;
493 no_of_parsed_chan++;
494 } else {
495 t = &domain_info->triplet[no_of_triplet];
496 t->chans.first_channel = first_chan;
497 t->chans.num_channels = no_of_parsed_chan;
498 t->chans.max_power = max_pwr;
499 no_of_triplet++;
500 first_chan = (u32) ch->hw_value;
501 next_chan = first_chan;
502 max_pwr = ch->max_power;
503 no_of_parsed_chan = 1;
504 }
505 }
506
507 if (flag) {
508 t = &domain_info->triplet[no_of_triplet];
509 t->chans.first_channel = first_chan;
510 t->chans.num_channels = no_of_parsed_chan;
511 t->chans.max_power = max_pwr;
512 no_of_triplet++;
513 }
514
515 domain_info->no_of_triplet = no_of_triplet;
516
517 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
518
519 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
520 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
521 wiphy_err(wiphy, "11D: setting domain info in FW\n");
522 return -1;
523 }
524
525 return 0;
526 }
527
528 /*
529 * CFG802.11 regulatory domain callback function.
530 *
531 * This function is called when the regulatory domain is changed due to the
532 * following reasons -
533 * - Set by driver
534 * - Set by system core
535 * - Set by user
536 * - Set bt Country IE
537 */
538 static void mwifiex_reg_notifier(struct wiphy *wiphy,
539 struct regulatory_request *request)
540 {
541 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
542 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
543 MWIFIEX_BSS_ROLE_ANY);
544
545 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
546 request->alpha2[0], request->alpha2[1]);
547
548 switch (request->initiator) {
549 case NL80211_REGDOM_SET_BY_DRIVER:
550 case NL80211_REGDOM_SET_BY_CORE:
551 case NL80211_REGDOM_SET_BY_USER:
552 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
553 break;
554 default:
555 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
556 request->initiator);
557 return;
558 }
559
560 /* Don't send world or same regdom info to firmware */
561 if (strncmp(request->alpha2, "00", 2) &&
562 strncmp(request->alpha2, adapter->country_code,
563 sizeof(request->alpha2))) {
564 memcpy(adapter->country_code, request->alpha2,
565 sizeof(request->alpha2));
566 mwifiex_send_domain_info_cmd_fw(wiphy);
567 mwifiex_dnld_txpwr_table(priv);
568 }
569 }
570
571 /*
572 * This function sets the fragmentation threshold.
573 *
574 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
575 * and MWIFIEX_FRAG_MAX_VALUE.
576 */
577 static int
578 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
579 {
580 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
581 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
582 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
583
584 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
585 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
586 &frag_thr, true);
587 }
588
589 /*
590 * This function sets the RTS threshold.
591
592 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
593 * and MWIFIEX_RTS_MAX_VALUE.
594 */
595 static int
596 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
597 {
598 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
599 rts_thr = MWIFIEX_RTS_MAX_VALUE;
600
601 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
602 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
603 &rts_thr, true);
604 }
605
606 /*
607 * CFG802.11 operation handler to set wiphy parameters.
608 *
609 * This function can be used to set the RTS threshold and the
610 * Fragmentation threshold of the driver.
611 */
612 static int
613 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
614 {
615 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
616 struct mwifiex_private *priv;
617 struct mwifiex_uap_bss_param *bss_cfg;
618 int ret, bss_started, i;
619
620 for (i = 0; i < adapter->priv_num; i++) {
621 priv = adapter->priv[i];
622
623 switch (priv->bss_role) {
624 case MWIFIEX_BSS_ROLE_UAP:
625 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
626 GFP_KERNEL);
627 if (!bss_cfg)
628 return -ENOMEM;
629
630 mwifiex_set_sys_config_invalid_data(bss_cfg);
631
632 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
633 bss_cfg->rts_threshold = wiphy->rts_threshold;
634 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
635 bss_cfg->frag_threshold = wiphy->frag_threshold;
636 if (changed & WIPHY_PARAM_RETRY_LONG)
637 bss_cfg->retry_limit = wiphy->retry_long;
638
639 bss_started = priv->bss_started;
640
641 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
642 HostCmd_ACT_GEN_SET, 0,
643 NULL, true);
644 if (ret) {
645 wiphy_err(wiphy, "Failed to stop the BSS\n");
646 kfree(bss_cfg);
647 return ret;
648 }
649
650 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
651 HostCmd_ACT_GEN_SET,
652 UAP_BSS_PARAMS_I, bss_cfg,
653 false);
654
655 kfree(bss_cfg);
656
657 if (ret) {
658 wiphy_err(wiphy, "Failed to set bss config\n");
659 return ret;
660 }
661
662 if (!bss_started)
663 break;
664
665 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
666 HostCmd_ACT_GEN_SET, 0,
667 NULL, false);
668 if (ret) {
669 wiphy_err(wiphy, "Failed to start BSS\n");
670 return ret;
671 }
672
673 break;
674 case MWIFIEX_BSS_ROLE_STA:
675 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
676 ret = mwifiex_set_rts(priv,
677 wiphy->rts_threshold);
678 if (ret)
679 return ret;
680 }
681 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
682 ret = mwifiex_set_frag(priv,
683 wiphy->frag_threshold);
684 if (ret)
685 return ret;
686 }
687 break;
688 }
689 }
690
691 return 0;
692 }
693
694 static int
695 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
696 {
697 u16 mode = P2P_MODE_DISABLE;
698
699 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
700 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
701
702 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
703 HostCmd_ACT_GEN_SET, 0, &mode, true))
704 return -1;
705
706 return 0;
707 }
708
709 /*
710 * This function initializes the functionalities for P2P client.
711 * The P2P client initialization sequence is:
712 * disable -> device -> client
713 */
714 static int
715 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
716 {
717 u16 mode;
718
719 if (mwifiex_cfg80211_deinit_p2p(priv))
720 return -1;
721
722 mode = P2P_MODE_DEVICE;
723 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
724 HostCmd_ACT_GEN_SET, 0, &mode, true))
725 return -1;
726
727 mode = P2P_MODE_CLIENT;
728 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
729 HostCmd_ACT_GEN_SET, 0, &mode, true))
730 return -1;
731
732 return 0;
733 }
734
735 /*
736 * This function initializes the functionalities for P2P GO.
737 * The P2P GO initialization sequence is:
738 * disable -> device -> GO
739 */
740 static int
741 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
742 {
743 u16 mode;
744
745 if (mwifiex_cfg80211_deinit_p2p(priv))
746 return -1;
747
748 mode = P2P_MODE_DEVICE;
749 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
750 HostCmd_ACT_GEN_SET, 0, &mode, true))
751 return -1;
752
753 mode = P2P_MODE_GO;
754 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
755 HostCmd_ACT_GEN_SET, 0, &mode, true))
756 return -1;
757
758 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
759 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
760
761 return 0;
762 }
763
764 /*
765 * CFG802.11 operation handler to change interface type.
766 */
767 static int
768 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
769 struct net_device *dev,
770 enum nl80211_iftype type, u32 *flags,
771 struct vif_params *params)
772 {
773 int ret;
774 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
775
776 switch (dev->ieee80211_ptr->iftype) {
777 case NL80211_IFTYPE_ADHOC:
778 switch (type) {
779 case NL80211_IFTYPE_STATION:
780 break;
781 case NL80211_IFTYPE_UNSPECIFIED:
782 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
783 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
784 return 0;
785 case NL80211_IFTYPE_AP:
786 default:
787 wiphy_err(wiphy, "%s: changing to %d not supported\n",
788 dev->name, type);
789 return -EOPNOTSUPP;
790 }
791 break;
792 case NL80211_IFTYPE_STATION:
793 switch (type) {
794 case NL80211_IFTYPE_ADHOC:
795 break;
796 case NL80211_IFTYPE_P2P_CLIENT:
797 if (mwifiex_cfg80211_init_p2p_client(priv))
798 return -EFAULT;
799 dev->ieee80211_ptr->iftype = type;
800 return 0;
801 case NL80211_IFTYPE_P2P_GO:
802 if (mwifiex_cfg80211_init_p2p_go(priv))
803 return -EFAULT;
804 dev->ieee80211_ptr->iftype = type;
805 return 0;
806 case NL80211_IFTYPE_UNSPECIFIED:
807 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
808 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
809 return 0;
810 case NL80211_IFTYPE_AP:
811 default:
812 wiphy_err(wiphy, "%s: changing to %d not supported\n",
813 dev->name, type);
814 return -EOPNOTSUPP;
815 }
816 break;
817 case NL80211_IFTYPE_AP:
818 switch (type) {
819 case NL80211_IFTYPE_UNSPECIFIED:
820 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
821 case NL80211_IFTYPE_AP: /* This shouldn't happen */
822 return 0;
823 case NL80211_IFTYPE_ADHOC:
824 case NL80211_IFTYPE_STATION:
825 default:
826 wiphy_err(wiphy, "%s: changing to %d not supported\n",
827 dev->name, type);
828 return -EOPNOTSUPP;
829 }
830 break;
831 case NL80211_IFTYPE_P2P_CLIENT:
832 case NL80211_IFTYPE_P2P_GO:
833 switch (type) {
834 case NL80211_IFTYPE_STATION:
835 if (mwifiex_cfg80211_deinit_p2p(priv))
836 return -EFAULT;
837 dev->ieee80211_ptr->iftype = type;
838 return 0;
839 default:
840 return -EOPNOTSUPP;
841 }
842 break;
843 default:
844 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
845 dev->name, dev->ieee80211_ptr->iftype);
846 return -EOPNOTSUPP;
847 }
848
849 dev->ieee80211_ptr->iftype = type;
850 priv->bss_mode = type;
851 mwifiex_deauthenticate(priv, NULL);
852
853 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
854
855 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
856 HostCmd_ACT_GEN_SET, 0, NULL, true);
857
858 return ret;
859 }
860
861 static void
862 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
863 struct rate_info *rate)
864 {
865 struct mwifiex_adapter *adapter = priv->adapter;
866
867 if (adapter->is_hw_11ac_capable) {
868 /* bit[1-0]: 00=LG 01=HT 10=VHT */
869 if (tx_htinfo & BIT(0)) {
870 /* HT */
871 rate->mcs = priv->tx_rate;
872 rate->flags |= RATE_INFO_FLAGS_MCS;
873 }
874 if (tx_htinfo & BIT(1)) {
875 /* VHT */
876 rate->mcs = priv->tx_rate & 0x0F;
877 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
878 }
879
880 if (tx_htinfo & (BIT(1) | BIT(0))) {
881 /* HT or VHT */
882 switch (tx_htinfo & (BIT(3) | BIT(2))) {
883 case 0:
884 /* This will be 20MHz */
885 break;
886 case (BIT(2)):
887 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
888 break;
889 case (BIT(3)):
890 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
891 break;
892 case (BIT(3) | BIT(2)):
893 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
894 break;
895 }
896
897 if (tx_htinfo & BIT(4))
898 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
899
900 if ((priv->tx_rate >> 4) == 1)
901 rate->nss = 2;
902 else
903 rate->nss = 1;
904 }
905 } else {
906 /*
907 * Bit 0 in tx_htinfo indicates that current Tx rate
908 * is 11n rate. Valid MCS index values for us are 0 to 15.
909 */
910 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
911 rate->mcs = priv->tx_rate;
912 rate->flags |= RATE_INFO_FLAGS_MCS;
913 if (tx_htinfo & BIT(1))
914 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
915 if (tx_htinfo & BIT(2))
916 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
917 }
918 }
919 }
920
921 /*
922 * This function dumps the station information on a buffer.
923 *
924 * The following information are shown -
925 * - Total bytes transmitted
926 * - Total bytes received
927 * - Total packets transmitted
928 * - Total packets received
929 * - Signal quality level
930 * - Transmission rate
931 */
932 static int
933 mwifiex_dump_station_info(struct mwifiex_private *priv,
934 struct station_info *sinfo)
935 {
936 u32 rate;
937
938 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
939 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
940 STATION_INFO_TX_BITRATE |
941 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
942
943 /* Get signal information from the firmware */
944 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
945 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
946 dev_err(priv->adapter->dev, "failed to get signal information\n");
947 return -EFAULT;
948 }
949
950 if (mwifiex_drv_get_data_rate(priv, &rate)) {
951 dev_err(priv->adapter->dev, "getting data rate\n");
952 return -EFAULT;
953 }
954
955 /* Get DTIM period information from firmware */
956 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
957 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
958 &priv->dtim_period, true);
959
960 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
961
962 sinfo->signal_avg = priv->bcn_rssi_avg;
963 sinfo->rx_bytes = priv->stats.rx_bytes;
964 sinfo->tx_bytes = priv->stats.tx_bytes;
965 sinfo->rx_packets = priv->stats.rx_packets;
966 sinfo->tx_packets = priv->stats.tx_packets;
967 sinfo->signal = priv->bcn_rssi_avg;
968 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
969 sinfo->txrate.legacy = rate * 5;
970
971 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
972 sinfo->filled |= STATION_INFO_BSS_PARAM;
973 sinfo->bss_param.flags = 0;
974 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
975 WLAN_CAPABILITY_SHORT_PREAMBLE)
976 sinfo->bss_param.flags |=
977 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
978 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
979 WLAN_CAPABILITY_SHORT_SLOT_TIME)
980 sinfo->bss_param.flags |=
981 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
982 sinfo->bss_param.dtim_period = priv->dtim_period;
983 sinfo->bss_param.beacon_interval =
984 priv->curr_bss_params.bss_descriptor.beacon_period;
985 }
986
987 return 0;
988 }
989
990 /*
991 * CFG802.11 operation handler to get station information.
992 *
993 * This function only works in connected mode, and dumps the
994 * requested station information, if available.
995 */
996 static int
997 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
998 const u8 *mac, struct station_info *sinfo)
999 {
1000 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1001
1002 if (!priv->media_connected)
1003 return -ENOENT;
1004 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1005 return -ENOENT;
1006
1007 return mwifiex_dump_station_info(priv, sinfo);
1008 }
1009
1010 /*
1011 * CFG802.11 operation handler to dump station information.
1012 */
1013 static int
1014 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1015 int idx, u8 *mac, struct station_info *sinfo)
1016 {
1017 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1018
1019 if (!priv->media_connected || idx)
1020 return -ENOENT;
1021
1022 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1023
1024 return mwifiex_dump_station_info(priv, sinfo);
1025 }
1026
1027 /* Supported rates to be advertised to the cfg80211 */
1028 static struct ieee80211_rate mwifiex_rates[] = {
1029 {.bitrate = 10, .hw_value = 2, },
1030 {.bitrate = 20, .hw_value = 4, },
1031 {.bitrate = 55, .hw_value = 11, },
1032 {.bitrate = 110, .hw_value = 22, },
1033 {.bitrate = 60, .hw_value = 12, },
1034 {.bitrate = 90, .hw_value = 18, },
1035 {.bitrate = 120, .hw_value = 24, },
1036 {.bitrate = 180, .hw_value = 36, },
1037 {.bitrate = 240, .hw_value = 48, },
1038 {.bitrate = 360, .hw_value = 72, },
1039 {.bitrate = 480, .hw_value = 96, },
1040 {.bitrate = 540, .hw_value = 108, },
1041 };
1042
1043 /* Channel definitions to be advertised to cfg80211 */
1044 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1045 {.center_freq = 2412, .hw_value = 1, },
1046 {.center_freq = 2417, .hw_value = 2, },
1047 {.center_freq = 2422, .hw_value = 3, },
1048 {.center_freq = 2427, .hw_value = 4, },
1049 {.center_freq = 2432, .hw_value = 5, },
1050 {.center_freq = 2437, .hw_value = 6, },
1051 {.center_freq = 2442, .hw_value = 7, },
1052 {.center_freq = 2447, .hw_value = 8, },
1053 {.center_freq = 2452, .hw_value = 9, },
1054 {.center_freq = 2457, .hw_value = 10, },
1055 {.center_freq = 2462, .hw_value = 11, },
1056 {.center_freq = 2467, .hw_value = 12, },
1057 {.center_freq = 2472, .hw_value = 13, },
1058 {.center_freq = 2484, .hw_value = 14, },
1059 };
1060
1061 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1062 .channels = mwifiex_channels_2ghz,
1063 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1064 .bitrates = mwifiex_rates,
1065 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1066 };
1067
1068 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1069 {.center_freq = 5040, .hw_value = 8, },
1070 {.center_freq = 5060, .hw_value = 12, },
1071 {.center_freq = 5080, .hw_value = 16, },
1072 {.center_freq = 5170, .hw_value = 34, },
1073 {.center_freq = 5190, .hw_value = 38, },
1074 {.center_freq = 5210, .hw_value = 42, },
1075 {.center_freq = 5230, .hw_value = 46, },
1076 {.center_freq = 5180, .hw_value = 36, },
1077 {.center_freq = 5200, .hw_value = 40, },
1078 {.center_freq = 5220, .hw_value = 44, },
1079 {.center_freq = 5240, .hw_value = 48, },
1080 {.center_freq = 5260, .hw_value = 52, },
1081 {.center_freq = 5280, .hw_value = 56, },
1082 {.center_freq = 5300, .hw_value = 60, },
1083 {.center_freq = 5320, .hw_value = 64, },
1084 {.center_freq = 5500, .hw_value = 100, },
1085 {.center_freq = 5520, .hw_value = 104, },
1086 {.center_freq = 5540, .hw_value = 108, },
1087 {.center_freq = 5560, .hw_value = 112, },
1088 {.center_freq = 5580, .hw_value = 116, },
1089 {.center_freq = 5600, .hw_value = 120, },
1090 {.center_freq = 5620, .hw_value = 124, },
1091 {.center_freq = 5640, .hw_value = 128, },
1092 {.center_freq = 5660, .hw_value = 132, },
1093 {.center_freq = 5680, .hw_value = 136, },
1094 {.center_freq = 5700, .hw_value = 140, },
1095 {.center_freq = 5745, .hw_value = 149, },
1096 {.center_freq = 5765, .hw_value = 153, },
1097 {.center_freq = 5785, .hw_value = 157, },
1098 {.center_freq = 5805, .hw_value = 161, },
1099 {.center_freq = 5825, .hw_value = 165, },
1100 };
1101
1102 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1103 .channels = mwifiex_channels_5ghz,
1104 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1105 .bitrates = mwifiex_rates + 4,
1106 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1107 };
1108
1109
1110 /* Supported crypto cipher suits to be advertised to cfg80211 */
1111 static const u32 mwifiex_cipher_suites[] = {
1112 WLAN_CIPHER_SUITE_WEP40,
1113 WLAN_CIPHER_SUITE_WEP104,
1114 WLAN_CIPHER_SUITE_TKIP,
1115 WLAN_CIPHER_SUITE_CCMP,
1116 WLAN_CIPHER_SUITE_AES_CMAC,
1117 };
1118
1119 /* Supported mgmt frame types to be advertised to cfg80211 */
1120 static const struct ieee80211_txrx_stypes
1121 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1122 [NL80211_IFTYPE_STATION] = {
1123 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1124 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1125 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1126 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1127 },
1128 [NL80211_IFTYPE_AP] = {
1129 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1130 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1131 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1132 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1133 },
1134 [NL80211_IFTYPE_P2P_CLIENT] = {
1135 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1136 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1137 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1138 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1139 },
1140 [NL80211_IFTYPE_P2P_GO] = {
1141 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1142 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1143 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1144 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1145 },
1146 };
1147
1148 /*
1149 * CFG802.11 operation handler for setting bit rates.
1150 *
1151 * Function configures data rates to firmware using bitrate mask
1152 * provided by cfg80211.
1153 */
1154 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1155 struct net_device *dev,
1156 const u8 *peer,
1157 const struct cfg80211_bitrate_mask *mask)
1158 {
1159 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1160 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1161 enum ieee80211_band band;
1162 struct mwifiex_adapter *adapter = priv->adapter;
1163
1164 if (!priv->media_connected) {
1165 dev_err(adapter->dev,
1166 "Can not set Tx data rate in disconnected state\n");
1167 return -EINVAL;
1168 }
1169
1170 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1171
1172 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1173
1174 /* Fill HR/DSSS rates. */
1175 if (band == IEEE80211_BAND_2GHZ)
1176 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1177
1178 /* Fill OFDM rates */
1179 if (band == IEEE80211_BAND_2GHZ)
1180 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1181 else
1182 bitmap_rates[1] = mask->control[band].legacy;
1183
1184 /* Fill HT MCS rates */
1185 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1186 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1187 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1188
1189 /* Fill VHT MCS rates */
1190 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1191 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1192 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1193 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1194 }
1195
1196 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1197 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1198 }
1199
1200 /*
1201 * CFG802.11 operation handler for connection quality monitoring.
1202 *
1203 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1204 * events to FW.
1205 */
1206 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1207 struct net_device *dev,
1208 s32 rssi_thold, u32 rssi_hyst)
1209 {
1210 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1211 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1212
1213 priv->cqm_rssi_thold = rssi_thold;
1214 priv->cqm_rssi_hyst = rssi_hyst;
1215
1216 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1217 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1218
1219 /* Subscribe/unsubscribe low and high rssi events */
1220 if (rssi_thold && rssi_hyst) {
1221 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1222 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1223 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1224 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1225 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1226 return mwifiex_send_cmd(priv,
1227 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1228 0, 0, &subsc_evt, true);
1229 } else {
1230 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1231 return mwifiex_send_cmd(priv,
1232 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1233 0, 0, &subsc_evt, true);
1234 }
1235
1236 return 0;
1237 }
1238
1239 /* cfg80211 operation handler for change_beacon.
1240 * Function retrieves and sets modified management IEs to FW.
1241 */
1242 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1243 struct net_device *dev,
1244 struct cfg80211_beacon_data *data)
1245 {
1246 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1247
1248 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1249 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1250 return -EINVAL;
1251 }
1252
1253 if (!priv->bss_started) {
1254 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1255 return -EINVAL;
1256 }
1257
1258 if (mwifiex_set_mgmt_ies(priv, data)) {
1259 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1260 return -EFAULT;
1261 }
1262
1263 return 0;
1264 }
1265
1266 /* cfg80211 operation handler for del_station.
1267 * Function deauthenticates station which value is provided in mac parameter.
1268 * If mac is NULL/broadcast, all stations in associated station list are
1269 * deauthenticated. If bss is not started or there are no stations in
1270 * associated stations list, no action is taken.
1271 */
1272 static int
1273 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1274 const u8 *mac)
1275 {
1276 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1277 struct mwifiex_sta_node *sta_node;
1278 unsigned long flags;
1279
1280 if (list_empty(&priv->sta_list) || !priv->bss_started)
1281 return 0;
1282
1283 if (!mac || is_broadcast_ether_addr(mac)) {
1284 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1285 list_for_each_entry(sta_node, &priv->sta_list, list) {
1286 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1287 HostCmd_ACT_GEN_SET, 0,
1288 sta_node->mac_addr, true))
1289 return -1;
1290 mwifiex_uap_del_sta_data(priv, sta_node);
1291 }
1292 } else {
1293 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1294 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1295 sta_node = mwifiex_get_sta_entry(priv, mac);
1296 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1297 if (sta_node) {
1298 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1299 HostCmd_ACT_GEN_SET, 0,
1300 sta_node->mac_addr, true))
1301 return -1;
1302 mwifiex_uap_del_sta_data(priv, sta_node);
1303 }
1304 }
1305
1306 return 0;
1307 }
1308
1309 static int
1310 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1311 {
1312 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1313 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1314 MWIFIEX_BSS_ROLE_ANY);
1315 struct mwifiex_ds_ant_cfg ant_cfg;
1316
1317 if (!tx_ant || !rx_ant)
1318 return -EOPNOTSUPP;
1319
1320 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1321 /* Not a MIMO chip. User should provide specific antenna number
1322 * for Tx/Rx path or enable all antennas for diversity
1323 */
1324 if (tx_ant != rx_ant)
1325 return -EOPNOTSUPP;
1326
1327 if ((tx_ant & (tx_ant - 1)) &&
1328 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1329 return -EOPNOTSUPP;
1330
1331 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1332 (priv->adapter->number_of_antenna > 1)) {
1333 tx_ant = RF_ANTENNA_AUTO;
1334 rx_ant = RF_ANTENNA_AUTO;
1335 }
1336 } else {
1337 struct ieee80211_sta_ht_cap *ht_info;
1338 int rx_mcs_supp;
1339 enum ieee80211_band band;
1340
1341 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1342 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1343 if (adapter->is_hw_11ac_capable)
1344 adapter->usr_dot_11ac_mcs_support =
1345 MWIFIEX_11AC_MCS_MAP_1X1;
1346 } else {
1347 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1348 if (adapter->is_hw_11ac_capable)
1349 adapter->usr_dot_11ac_mcs_support =
1350 MWIFIEX_11AC_MCS_MAP_2X2;
1351 }
1352
1353 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1354 if (!adapter->wiphy->bands[band])
1355 continue;
1356
1357 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1358 rx_mcs_supp =
1359 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1360 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1361 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1362 }
1363 }
1364
1365 ant_cfg.tx_ant = tx_ant;
1366 ant_cfg.rx_ant = rx_ant;
1367
1368 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1369 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1370 }
1371
1372 /* cfg80211 operation handler for stop ap.
1373 * Function stops BSS running at uAP interface.
1374 */
1375 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1376 {
1377 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1378
1379 if (mwifiex_del_mgmt_ies(priv))
1380 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1381
1382 priv->ap_11n_enabled = 0;
1383
1384 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1385 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1386 wiphy_err(wiphy, "Failed to stop the BSS\n");
1387 return -1;
1388 }
1389
1390 return 0;
1391 }
1392
1393 /* cfg80211 operation handler for start_ap.
1394 * Function sets beacon period, DTIM period, SSID and security into
1395 * AP config structure.
1396 * AP is configured with these settings and BSS is started.
1397 */
1398 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1399 struct net_device *dev,
1400 struct cfg80211_ap_settings *params)
1401 {
1402 struct mwifiex_uap_bss_param *bss_cfg;
1403 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1404 u8 config_bands = 0;
1405
1406 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1407 return -1;
1408 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1409 return -1;
1410
1411 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1412 if (!bss_cfg)
1413 return -ENOMEM;
1414
1415 mwifiex_set_sys_config_invalid_data(bss_cfg);
1416
1417 if (params->beacon_interval)
1418 bss_cfg->beacon_period = params->beacon_interval;
1419 if (params->dtim_period)
1420 bss_cfg->dtim_period = params->dtim_period;
1421
1422 if (params->ssid && params->ssid_len) {
1423 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1424 bss_cfg->ssid.ssid_len = params->ssid_len;
1425 }
1426
1427 switch (params->hidden_ssid) {
1428 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1429 bss_cfg->bcast_ssid_ctl = 1;
1430 break;
1431 case NL80211_HIDDEN_SSID_ZERO_LEN:
1432 bss_cfg->bcast_ssid_ctl = 0;
1433 break;
1434 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1435 /* firmware doesn't support this type of hidden SSID */
1436 default:
1437 kfree(bss_cfg);
1438 return -EINVAL;
1439 }
1440
1441 bss_cfg->channel = ieee80211_frequency_to_channel(
1442 params->chandef.chan->center_freq);
1443
1444 /* Set appropriate bands */
1445 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1446 bss_cfg->band_cfg = BAND_CONFIG_BG;
1447 config_bands = BAND_B | BAND_G;
1448
1449 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1450 config_bands |= BAND_GN;
1451 } else {
1452 bss_cfg->band_cfg = BAND_CONFIG_A;
1453 config_bands = BAND_A;
1454
1455 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1456 config_bands |= BAND_AN;
1457
1458 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1459 config_bands |= BAND_AAC;
1460 }
1461
1462 if (!((config_bands | priv->adapter->fw_bands) &
1463 ~priv->adapter->fw_bands))
1464 priv->adapter->config_bands = config_bands;
1465
1466 mwifiex_set_uap_rates(bss_cfg, params);
1467 mwifiex_send_domain_info_cmd_fw(wiphy);
1468
1469 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1470 kfree(bss_cfg);
1471 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1472 return -1;
1473 }
1474
1475 mwifiex_set_ht_params(priv, bss_cfg, params);
1476
1477 if (priv->adapter->is_hw_11ac_capable) {
1478 mwifiex_set_vht_params(priv, bss_cfg, params);
1479 mwifiex_set_vht_width(priv, params->chandef.width,
1480 priv->ap_11ac_enabled);
1481 }
1482
1483 if (priv->ap_11ac_enabled)
1484 mwifiex_set_11ac_ba_params(priv);
1485 else
1486 mwifiex_set_ba_params(priv);
1487
1488 mwifiex_set_wmm_params(priv, bss_cfg, params);
1489
1490 if (params->inactivity_timeout > 0) {
1491 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1492 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1493 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1494 }
1495
1496 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1497 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1498 wiphy_err(wiphy, "Failed to stop the BSS\n");
1499 kfree(bss_cfg);
1500 return -1;
1501 }
1502
1503 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1504 HostCmd_ACT_GEN_SET,
1505 UAP_BSS_PARAMS_I, bss_cfg, false)) {
1506 wiphy_err(wiphy, "Failed to set the SSID\n");
1507 kfree(bss_cfg);
1508 return -1;
1509 }
1510
1511 kfree(bss_cfg);
1512
1513 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1514 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1515 wiphy_err(wiphy, "Failed to start the BSS\n");
1516 return -1;
1517 }
1518
1519 if (priv->sec_info.wep_enabled)
1520 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1521 else
1522 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1523
1524 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1525 HostCmd_ACT_GEN_SET, 0,
1526 &priv->curr_pkt_filter, true))
1527 return -1;
1528
1529 return 0;
1530 }
1531
1532 /*
1533 * CFG802.11 operation handler for disconnection request.
1534 *
1535 * This function does not work when there is already a disconnection
1536 * procedure going on.
1537 */
1538 static int
1539 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1540 u16 reason_code)
1541 {
1542 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1543
1544 if (mwifiex_deauthenticate(priv, NULL))
1545 return -EFAULT;
1546
1547 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1548 " reason code %d\n", priv->cfg_bssid, reason_code);
1549
1550 memset(priv->cfg_bssid, 0, ETH_ALEN);
1551 priv->hs2_enabled = false;
1552
1553 return 0;
1554 }
1555
1556 /*
1557 * This function informs the CFG802.11 subsystem of a new IBSS.
1558 *
1559 * The following information are sent to the CFG802.11 subsystem
1560 * to register the new IBSS. If we do not register the new IBSS,
1561 * a kernel panic will result.
1562 * - SSID
1563 * - SSID length
1564 * - BSSID
1565 * - Channel
1566 */
1567 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1568 {
1569 struct ieee80211_channel *chan;
1570 struct mwifiex_bss_info bss_info;
1571 struct cfg80211_bss *bss;
1572 int ie_len;
1573 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1574 enum ieee80211_band band;
1575
1576 if (mwifiex_get_bss_info(priv, &bss_info))
1577 return -1;
1578
1579 ie_buf[0] = WLAN_EID_SSID;
1580 ie_buf[1] = bss_info.ssid.ssid_len;
1581
1582 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1583 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1584 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1585
1586 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1587 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1588 ieee80211_channel_to_frequency(bss_info.bss_chan,
1589 band));
1590
1591 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1592 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1593 0, ie_buf, ie_len, 0, GFP_KERNEL);
1594 cfg80211_put_bss(priv->wdev->wiphy, bss);
1595 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1596
1597 return 0;
1598 }
1599
1600 /*
1601 * This function connects with a BSS.
1602 *
1603 * This function handles both Infra and Ad-Hoc modes. It also performs
1604 * validity checking on the provided parameters, disconnects from the
1605 * current BSS (if any), sets up the association/scan parameters,
1606 * including security settings, and performs specific SSID scan before
1607 * trying to connect.
1608 *
1609 * For Infra mode, the function returns failure if the specified SSID
1610 * is not found in scan table. However, for Ad-Hoc mode, it can create
1611 * the IBSS if it does not exist. On successful completion in either case,
1612 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1613 */
1614 static int
1615 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1616 const u8 *ssid, const u8 *bssid, int mode,
1617 struct ieee80211_channel *channel,
1618 struct cfg80211_connect_params *sme, bool privacy)
1619 {
1620 struct cfg80211_ssid req_ssid;
1621 int ret, auth_type = 0;
1622 struct cfg80211_bss *bss = NULL;
1623 u8 is_scanning_required = 0;
1624
1625 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1626
1627 req_ssid.ssid_len = ssid_len;
1628 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1629 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1630 return -EINVAL;
1631 }
1632
1633 memcpy(req_ssid.ssid, ssid, ssid_len);
1634 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1635 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1636 return -EINVAL;
1637 }
1638
1639 /* disconnect before try to associate */
1640 mwifiex_deauthenticate(priv, NULL);
1641
1642 /* As this is new association, clear locally stored
1643 * keys and security related flags */
1644 priv->sec_info.wpa_enabled = false;
1645 priv->sec_info.wpa2_enabled = false;
1646 priv->wep_key_curr_index = 0;
1647 priv->sec_info.encryption_mode = 0;
1648 priv->sec_info.is_authtype_auto = 0;
1649 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1650
1651 if (mode == NL80211_IFTYPE_ADHOC) {
1652 /* "privacy" is set only for ad-hoc mode */
1653 if (privacy) {
1654 /*
1655 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1656 * the firmware can find a matching network from the
1657 * scan. The cfg80211 does not give us the encryption
1658 * mode at this stage so just setting it to WEP here.
1659 */
1660 priv->sec_info.encryption_mode =
1661 WLAN_CIPHER_SUITE_WEP104;
1662 priv->sec_info.authentication_mode =
1663 NL80211_AUTHTYPE_OPEN_SYSTEM;
1664 }
1665
1666 goto done;
1667 }
1668
1669 /* Now handle infra mode. "sme" is valid for infra mode only */
1670 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1671 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1672 priv->sec_info.is_authtype_auto = 1;
1673 } else {
1674 auth_type = sme->auth_type;
1675 }
1676
1677 if (sme->crypto.n_ciphers_pairwise) {
1678 priv->sec_info.encryption_mode =
1679 sme->crypto.ciphers_pairwise[0];
1680 priv->sec_info.authentication_mode = auth_type;
1681 }
1682
1683 if (sme->crypto.cipher_group) {
1684 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1685 priv->sec_info.authentication_mode = auth_type;
1686 }
1687 if (sme->ie)
1688 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1689
1690 if (sme->key) {
1691 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1692 dev_dbg(priv->adapter->dev,
1693 "info: setting wep encryption"
1694 " with key len %d\n", sme->key_len);
1695 priv->wep_key_curr_index = sme->key_idx;
1696 ret = mwifiex_set_encode(priv, NULL, sme->key,
1697 sme->key_len, sme->key_idx,
1698 NULL, 0);
1699 }
1700 }
1701 done:
1702 /*
1703 * Scan entries are valid for some time (15 sec). So we can save one
1704 * active scan time if we just try cfg80211_get_bss first. If it fails
1705 * then request scan and cfg80211_get_bss() again for final output.
1706 */
1707 while (1) {
1708 if (is_scanning_required) {
1709 /* Do specific SSID scanning */
1710 if (mwifiex_request_scan(priv, &req_ssid)) {
1711 dev_err(priv->adapter->dev, "scan error\n");
1712 return -EFAULT;
1713 }
1714 }
1715
1716 /* Find the BSS we want using available scan results */
1717 if (mode == NL80211_IFTYPE_ADHOC)
1718 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1719 bssid, ssid, ssid_len,
1720 WLAN_CAPABILITY_IBSS,
1721 WLAN_CAPABILITY_IBSS);
1722 else
1723 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1724 bssid, ssid, ssid_len,
1725 WLAN_CAPABILITY_ESS,
1726 WLAN_CAPABILITY_ESS);
1727
1728 if (!bss) {
1729 if (is_scanning_required) {
1730 dev_warn(priv->adapter->dev,
1731 "assoc: requested bss not found in scan results\n");
1732 break;
1733 }
1734 is_scanning_required = 1;
1735 } else {
1736 dev_dbg(priv->adapter->dev,
1737 "info: trying to associate to '%s' bssid %pM\n",
1738 (char *) req_ssid.ssid, bss->bssid);
1739 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1740 break;
1741 }
1742 }
1743
1744 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1745 if (ret)
1746 return ret;
1747
1748 if (mode == NL80211_IFTYPE_ADHOC) {
1749 /* Inform the BSS information to kernel, otherwise
1750 * kernel will give a panic after successful assoc */
1751 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1752 return -EFAULT;
1753 }
1754
1755 return ret;
1756 }
1757
1758 /*
1759 * CFG802.11 operation handler for association request.
1760 *
1761 * This function does not work when the current mode is set to Ad-Hoc, or
1762 * when there is already an association procedure going on. The given BSS
1763 * information is used to associate.
1764 */
1765 static int
1766 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1767 struct cfg80211_connect_params *sme)
1768 {
1769 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1770 int ret;
1771
1772 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1773 wiphy_err(wiphy,
1774 "%s: reject infra assoc request in non-STA role\n",
1775 dev->name);
1776 return -EINVAL;
1777 }
1778
1779 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1780 (char *) sme->ssid, sme->bssid);
1781
1782 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1783 priv->bss_mode, sme->channel, sme, 0);
1784 if (!ret) {
1785 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1786 NULL, 0, WLAN_STATUS_SUCCESS,
1787 GFP_KERNEL);
1788 dev_dbg(priv->adapter->dev,
1789 "info: associated to bssid %pM successfully\n",
1790 priv->cfg_bssid);
1791 } else {
1792 dev_dbg(priv->adapter->dev,
1793 "info: association to bssid %pM failed\n",
1794 priv->cfg_bssid);
1795 memset(priv->cfg_bssid, 0, ETH_ALEN);
1796
1797 if (ret > 0)
1798 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1799 NULL, 0, NULL, 0, ret,
1800 GFP_KERNEL);
1801 else
1802 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1803 NULL, 0, NULL, 0,
1804 WLAN_STATUS_UNSPECIFIED_FAILURE,
1805 GFP_KERNEL);
1806 }
1807
1808 return 0;
1809 }
1810
1811 /*
1812 * This function sets following parameters for ibss network.
1813 * - channel
1814 * - start band
1815 * - 11n flag
1816 * - secondary channel offset
1817 */
1818 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1819 struct cfg80211_ibss_params *params)
1820 {
1821 struct wiphy *wiphy = priv->wdev->wiphy;
1822 struct mwifiex_adapter *adapter = priv->adapter;
1823 int index = 0, i;
1824 u8 config_bands = 0;
1825
1826 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1827 if (!params->basic_rates) {
1828 config_bands = BAND_B | BAND_G;
1829 } else {
1830 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1831 /*
1832 * Rates below 6 Mbps in the table are CCK
1833 * rates; 802.11b and from 6 they are OFDM;
1834 * 802.11G
1835 */
1836 if (mwifiex_rates[i].bitrate == 60) {
1837 index = 1 << i;
1838 break;
1839 }
1840 }
1841
1842 if (params->basic_rates < index) {
1843 config_bands = BAND_B;
1844 } else {
1845 config_bands = BAND_G;
1846 if (params->basic_rates % index)
1847 config_bands |= BAND_B;
1848 }
1849 }
1850
1851 if (cfg80211_get_chandef_type(&params->chandef) !=
1852 NL80211_CHAN_NO_HT)
1853 config_bands |= BAND_G | BAND_GN;
1854 } else {
1855 if (cfg80211_get_chandef_type(&params->chandef) ==
1856 NL80211_CHAN_NO_HT)
1857 config_bands = BAND_A;
1858 else
1859 config_bands = BAND_AN | BAND_A;
1860 }
1861
1862 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1863 adapter->config_bands = config_bands;
1864 adapter->adhoc_start_band = config_bands;
1865
1866 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1867 adapter->adhoc_11n_enabled = true;
1868 else
1869 adapter->adhoc_11n_enabled = false;
1870 }
1871
1872 adapter->sec_chan_offset =
1873 mwifiex_chan_type_to_sec_chan_offset(
1874 cfg80211_get_chandef_type(&params->chandef));
1875 priv->adhoc_channel = ieee80211_frequency_to_channel(
1876 params->chandef.chan->center_freq);
1877
1878 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1879 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1880
1881 return 0;
1882 }
1883
1884 /*
1885 * CFG802.11 operation handler to join an IBSS.
1886 *
1887 * This function does not work in any mode other than Ad-Hoc, or if
1888 * a join operation is already in progress.
1889 */
1890 static int
1891 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1892 struct cfg80211_ibss_params *params)
1893 {
1894 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1895 int ret = 0;
1896
1897 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1898 wiphy_err(wiphy, "request to join ibss received "
1899 "when station is not in ibss mode\n");
1900 goto done;
1901 }
1902
1903 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1904 (char *) params->ssid, params->bssid);
1905
1906 mwifiex_set_ibss_params(priv, params);
1907
1908 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1909 params->bssid, priv->bss_mode,
1910 params->chandef.chan, NULL,
1911 params->privacy);
1912 done:
1913 if (!ret) {
1914 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1915 params->chandef.chan, GFP_KERNEL);
1916 dev_dbg(priv->adapter->dev,
1917 "info: joined/created adhoc network with bssid"
1918 " %pM successfully\n", priv->cfg_bssid);
1919 } else {
1920 dev_dbg(priv->adapter->dev,
1921 "info: failed creating/joining adhoc network\n");
1922 }
1923
1924 return ret;
1925 }
1926
1927 /*
1928 * CFG802.11 operation handler to leave an IBSS.
1929 *
1930 * This function does not work if a leave operation is
1931 * already in progress.
1932 */
1933 static int
1934 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1935 {
1936 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1937
1938 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1939 priv->cfg_bssid);
1940 if (mwifiex_deauthenticate(priv, NULL))
1941 return -EFAULT;
1942
1943 memset(priv->cfg_bssid, 0, ETH_ALEN);
1944
1945 return 0;
1946 }
1947
1948 /*
1949 * CFG802.11 operation handler for scan request.
1950 *
1951 * This function issues a scan request to the firmware based upon
1952 * the user specified scan configuration. On successfull completion,
1953 * it also informs the results.
1954 */
1955 static int
1956 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1957 struct cfg80211_scan_request *request)
1958 {
1959 struct net_device *dev = request->wdev->netdev;
1960 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1961 int i, offset, ret;
1962 struct ieee80211_channel *chan;
1963 struct ieee_types_header *ie;
1964 struct mwifiex_user_scan_cfg *user_scan_cfg;
1965
1966 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1967
1968 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1969 atomic_read(&priv->wmm.tx_pkts_queued) >=
1970 MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1971 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1972 return -EBUSY;
1973 }
1974
1975 /* Block scan request if scan operation or scan cleanup when interface
1976 * is disabled is in process
1977 */
1978 if (priv->scan_request || priv->scan_aborting) {
1979 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1980 return -EBUSY;
1981 }
1982
1983 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1984 if (!user_scan_cfg)
1985 return -ENOMEM;
1986
1987 priv->scan_request = request;
1988
1989 user_scan_cfg->num_ssids = request->n_ssids;
1990 user_scan_cfg->ssid_list = request->ssids;
1991
1992 if (request->ie && request->ie_len) {
1993 offset = 0;
1994 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1995 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1996 continue;
1997 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1998 ie = (struct ieee_types_header *)(request->ie + offset);
1999 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2000 offset += sizeof(*ie) + ie->len;
2001
2002 if (offset >= request->ie_len)
2003 break;
2004 }
2005 }
2006
2007 for (i = 0; i < min_t(u32, request->n_channels,
2008 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2009 chan = request->channels[i];
2010 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2011 user_scan_cfg->chan_list[i].radio_type = chan->band;
2012
2013 if (chan->flags & IEEE80211_CHAN_NO_IR)
2014 user_scan_cfg->chan_list[i].scan_type =
2015 MWIFIEX_SCAN_TYPE_PASSIVE;
2016 else
2017 user_scan_cfg->chan_list[i].scan_type =
2018 MWIFIEX_SCAN_TYPE_ACTIVE;
2019
2020 user_scan_cfg->chan_list[i].scan_time = 0;
2021 }
2022
2023 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2024 kfree(user_scan_cfg);
2025 if (ret) {
2026 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2027 priv->scan_aborting = false;
2028 priv->scan_request = NULL;
2029 return ret;
2030 }
2031
2032 if (request->ie && request->ie_len) {
2033 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2034 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2035 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2036 memset(&priv->vs_ie[i].ie, 0,
2037 MWIFIEX_MAX_VSIE_LEN);
2038 }
2039 }
2040 }
2041 return 0;
2042 }
2043
2044 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2045 struct mwifiex_private *priv)
2046 {
2047 struct mwifiex_adapter *adapter = priv->adapter;
2048
2049 vht_info->vht_supported = true;
2050
2051 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2052 /* Update MCS support for VHT */
2053 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2054 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2055 vht_info->vht_mcs.rx_highest = 0;
2056 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2057 adapter->hw_dot_11ac_mcs_support >> 16);
2058 vht_info->vht_mcs.tx_highest = 0;
2059 }
2060
2061 /*
2062 * This function sets up the CFG802.11 specific HT capability fields
2063 * with default values.
2064 *
2065 * The following default values are set -
2066 * - HT Supported = True
2067 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2068 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2069 * - HT Capabilities supported by firmware
2070 * - MCS information, Rx mask = 0xff
2071 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2072 */
2073 static void
2074 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2075 struct mwifiex_private *priv)
2076 {
2077 int rx_mcs_supp;
2078 struct ieee80211_mcs_info mcs_set;
2079 u8 *mcs = (u8 *)&mcs_set;
2080 struct mwifiex_adapter *adapter = priv->adapter;
2081
2082 ht_info->ht_supported = true;
2083 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2084 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2085
2086 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2087
2088 /* Fill HT capability information */
2089 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2090 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2091 else
2092 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2093
2094 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2095 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2096 else
2097 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2098
2099 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2100 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2101 else
2102 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2103
2104 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2105 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2106 else
2107 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2108
2109 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2110 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2111 else
2112 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2113
2114 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2115 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2116 else
2117 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2118
2119 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2120 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2121 else
2122 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2123
2124 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2125 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2126 else
2127 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2128
2129 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2130 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2131
2132 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2133 /* Set MCS for 1x1/2x2 */
2134 memset(mcs, 0xff, rx_mcs_supp);
2135 /* Clear all the other values */
2136 memset(&mcs[rx_mcs_supp], 0,
2137 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2138 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2139 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2140 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2141 SETHT_MCS32(mcs_set.rx_mask);
2142
2143 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2144
2145 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2146 }
2147
2148 /*
2149 * create a new virtual interface with the given name
2150 */
2151 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2152 const char *name,
2153 enum nl80211_iftype type,
2154 u32 *flags,
2155 struct vif_params *params)
2156 {
2157 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2158 struct mwifiex_private *priv;
2159 struct net_device *dev;
2160 void *mdev_priv;
2161 struct wireless_dev *wdev;
2162
2163 if (!adapter)
2164 return ERR_PTR(-EFAULT);
2165
2166 switch (type) {
2167 case NL80211_IFTYPE_UNSPECIFIED:
2168 case NL80211_IFTYPE_STATION:
2169 case NL80211_IFTYPE_ADHOC:
2170 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2171 if (priv->bss_mode) {
2172 wiphy_err(wiphy,
2173 "cannot create multiple sta/adhoc ifaces\n");
2174 return ERR_PTR(-EINVAL);
2175 }
2176
2177 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2178 if (!wdev)
2179 return ERR_PTR(-ENOMEM);
2180
2181 wdev->wiphy = wiphy;
2182 priv->wdev = wdev;
2183 wdev->iftype = NL80211_IFTYPE_STATION;
2184
2185 if (type == NL80211_IFTYPE_UNSPECIFIED)
2186 priv->bss_mode = NL80211_IFTYPE_STATION;
2187 else
2188 priv->bss_mode = type;
2189
2190 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2191 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2192 priv->bss_priority = 0;
2193 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2194 priv->bss_num = 0;
2195
2196 break;
2197 case NL80211_IFTYPE_AP:
2198 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2199
2200 if (priv->bss_mode) {
2201 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2202 return ERR_PTR(-EINVAL);
2203 }
2204
2205 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2206 if (!wdev)
2207 return ERR_PTR(-ENOMEM);
2208
2209 priv->wdev = wdev;
2210 wdev->wiphy = wiphy;
2211 wdev->iftype = NL80211_IFTYPE_AP;
2212
2213 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2214 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2215 priv->bss_priority = 0;
2216 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2217 priv->bss_started = 0;
2218 priv->bss_num = 0;
2219 priv->bss_mode = type;
2220
2221 break;
2222 case NL80211_IFTYPE_P2P_CLIENT:
2223 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2224
2225 if (priv->bss_mode) {
2226 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2227 return ERR_PTR(-EINVAL);
2228 }
2229
2230 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2231 if (!wdev)
2232 return ERR_PTR(-ENOMEM);
2233
2234 priv->wdev = wdev;
2235 wdev->wiphy = wiphy;
2236
2237 /* At start-up, wpa_supplicant tries to change the interface
2238 * to NL80211_IFTYPE_STATION if it is not managed mode.
2239 */
2240 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2241 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2242
2243 /* Setting bss_type to P2P tells firmware that this interface
2244 * is receiving P2P peers found during find phase and doing
2245 * action frame handshake.
2246 */
2247 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2248
2249 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2250 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2251 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2252 priv->bss_started = 0;
2253 priv->bss_num = 0;
2254
2255 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2256 wdev = ERR_PTR(-EFAULT);
2257 goto done;
2258 }
2259
2260 break;
2261 default:
2262 wiphy_err(wiphy, "type not supported\n");
2263 return ERR_PTR(-EINVAL);
2264 }
2265
2266 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2267 ether_setup, IEEE80211_NUM_ACS, 1);
2268 if (!dev) {
2269 wiphy_err(wiphy, "no memory available for netdevice\n");
2270 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2271 wdev = ERR_PTR(-ENOMEM);
2272 goto done;
2273 }
2274
2275 mwifiex_init_priv_params(priv, dev);
2276 priv->netdev = dev;
2277
2278 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2279 if (adapter->is_hw_11ac_capable)
2280 mwifiex_setup_vht_caps(
2281 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2282
2283 if (adapter->config_bands & BAND_A)
2284 mwifiex_setup_ht_caps(
2285 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2286
2287 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2288 mwifiex_setup_vht_caps(
2289 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2290
2291 dev_net_set(dev, wiphy_net(wiphy));
2292 dev->ieee80211_ptr = priv->wdev;
2293 dev->ieee80211_ptr->iftype = priv->bss_mode;
2294 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2295 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2296
2297 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2298 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2299 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2300 dev->ethtool_ops = &mwifiex_ethtool_ops;
2301
2302 mdev_priv = netdev_priv(dev);
2303 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2304
2305 SET_NETDEV_DEV(dev, adapter->dev);
2306
2307 /* Register network device */
2308 if (register_netdevice(dev)) {
2309 wiphy_err(wiphy, "cannot register virtual network device\n");
2310 free_netdev(dev);
2311 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2312 priv->netdev = NULL;
2313 wdev = ERR_PTR(-EFAULT);
2314 goto done;
2315 }
2316
2317 sema_init(&priv->async_sem, 1);
2318
2319 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2320
2321 #ifdef CONFIG_DEBUG_FS
2322 mwifiex_dev_debugfs_init(priv);
2323 #endif
2324
2325 done:
2326 if (IS_ERR(wdev)) {
2327 kfree(priv->wdev);
2328 priv->wdev = NULL;
2329 }
2330
2331 return wdev;
2332 }
2333 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2334
2335 /*
2336 * del_virtual_intf: remove the virtual interface determined by dev
2337 */
2338 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2339 {
2340 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2341
2342 #ifdef CONFIG_DEBUG_FS
2343 mwifiex_dev_debugfs_remove(priv);
2344 #endif
2345
2346 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2347
2348 if (netif_carrier_ok(priv->netdev))
2349 netif_carrier_off(priv->netdev);
2350
2351 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2352 unregister_netdevice(wdev->netdev);
2353
2354 /* Clear the priv in adapter */
2355 priv->netdev->ieee80211_ptr = NULL;
2356 priv->netdev = NULL;
2357 kfree(wdev);
2358 priv->wdev = NULL;
2359
2360 priv->media_connected = false;
2361
2362 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2363
2364 return 0;
2365 }
2366 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2367
2368 static bool
2369 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2370 u8 max_byte_seq)
2371 {
2372 int j, k, valid_byte_cnt = 0;
2373 bool dont_care_byte = false;
2374
2375 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2376 for (k = 0; k < 8; k++) {
2377 if (pat->mask[j] & 1 << k) {
2378 memcpy(byte_seq + valid_byte_cnt,
2379 &pat->pattern[j * 8 + k], 1);
2380 valid_byte_cnt++;
2381 if (dont_care_byte)
2382 return false;
2383 } else {
2384 if (valid_byte_cnt)
2385 dont_care_byte = true;
2386 }
2387
2388 if (valid_byte_cnt > max_byte_seq)
2389 return false;
2390 }
2391 }
2392
2393 byte_seq[max_byte_seq] = valid_byte_cnt;
2394
2395 return true;
2396 }
2397
2398 #ifdef CONFIG_PM
2399 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2400 struct cfg80211_wowlan *wowlan)
2401 {
2402 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2403 struct mwifiex_ds_mef_cfg mef_cfg;
2404 struct mwifiex_mef_entry *mef_entry;
2405 int i, filt_num = 0, ret;
2406 bool first_pat = true;
2407 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2408 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2409 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2410 struct mwifiex_private *priv =
2411 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2412
2413 if (!wowlan) {
2414 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2415 return 0;
2416 }
2417
2418 if (!priv->media_connected) {
2419 dev_warn(adapter->dev,
2420 "Can not configure WOWLAN in disconnected state\n");
2421 return 0;
2422 }
2423
2424 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2425 if (!mef_entry)
2426 return -ENOMEM;
2427
2428 memset(&mef_cfg, 0, sizeof(mef_cfg));
2429 mef_cfg.num_entries = 1;
2430 mef_cfg.mef_entry = mef_entry;
2431 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2432 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2433
2434 for (i = 0; i < wowlan->n_patterns; i++) {
2435 memset(byte_seq, 0, sizeof(byte_seq));
2436 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2437 byte_seq,
2438 MWIFIEX_MEF_MAX_BYTESEQ)) {
2439 wiphy_err(wiphy, "Pattern not supported\n");
2440 kfree(mef_entry);
2441 return -EOPNOTSUPP;
2442 }
2443
2444 if (!wowlan->patterns[i].pkt_offset) {
2445 if (!(byte_seq[0] & 0x01) &&
2446 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2447 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2448 continue;
2449 } else if (is_broadcast_ether_addr(byte_seq)) {
2450 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2451 continue;
2452 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2453 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2454 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2455 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2456 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2457 continue;
2458 }
2459 }
2460
2461 mef_entry->filter[filt_num].repeat = 1;
2462 mef_entry->filter[filt_num].offset =
2463 wowlan->patterns[i].pkt_offset;
2464 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2465 sizeof(byte_seq));
2466 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2467
2468 if (first_pat)
2469 first_pat = false;
2470 else
2471 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2472
2473 filt_num++;
2474 }
2475
2476 if (wowlan->magic_pkt) {
2477 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2478 mef_entry->filter[filt_num].repeat = 16;
2479 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2480 ETH_ALEN);
2481 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2482 ETH_ALEN;
2483 mef_entry->filter[filt_num].offset = 28;
2484 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2485 if (filt_num)
2486 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2487 }
2488
2489 if (!mef_cfg.criteria)
2490 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2491 MWIFIEX_CRITERIA_UNICAST |
2492 MWIFIEX_CRITERIA_MULTICAST;
2493
2494 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2495 HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2496
2497 kfree(mef_entry);
2498 return ret;
2499 }
2500
2501 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2502 {
2503 return 0;
2504 }
2505
2506 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2507 bool enabled)
2508 {
2509 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2510
2511 device_set_wakeup_enable(adapter->dev, enabled);
2512 }
2513 #endif
2514
2515 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2516 {
2517 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2518 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2519 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2520
2521 if ((byte_seq[0] & 0x01) &&
2522 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2523 return PACKET_TYPE_UNICAST;
2524 else if (!memcmp(byte_seq, bc_mac, 4))
2525 return PACKET_TYPE_BROADCAST;
2526 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2527 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2528 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2529 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2530 return PACKET_TYPE_MULTICAST;
2531
2532 return 0;
2533 }
2534
2535 static int
2536 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2537 struct cfg80211_coalesce_rules *crule,
2538 struct mwifiex_coalesce_rule *mrule)
2539 {
2540 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2541 struct filt_field_param *param;
2542 int i;
2543
2544 mrule->max_coalescing_delay = crule->delay;
2545
2546 param = mrule->params;
2547
2548 for (i = 0; i < crule->n_patterns; i++) {
2549 memset(byte_seq, 0, sizeof(byte_seq));
2550 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2551 byte_seq,
2552 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2553 dev_err(priv->adapter->dev, "Pattern not supported\n");
2554 return -EOPNOTSUPP;
2555 }
2556
2557 if (!crule->patterns[i].pkt_offset) {
2558 u8 pkt_type;
2559
2560 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2561 if (pkt_type && mrule->pkt_type) {
2562 dev_err(priv->adapter->dev,
2563 "Multiple packet types not allowed\n");
2564 return -EOPNOTSUPP;
2565 } else if (pkt_type) {
2566 mrule->pkt_type = pkt_type;
2567 continue;
2568 }
2569 }
2570
2571 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2572 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2573 else
2574 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2575
2576 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2577 memcpy(param->operand_byte_stream, byte_seq,
2578 param->operand_len);
2579 param->offset = crule->patterns[i].pkt_offset;
2580 param++;
2581
2582 mrule->num_of_fields++;
2583 }
2584
2585 if (!mrule->pkt_type) {
2586 dev_err(priv->adapter->dev,
2587 "Packet type can not be determined\n");
2588 return -EOPNOTSUPP;
2589 }
2590
2591 return 0;
2592 }
2593
2594 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2595 struct cfg80211_coalesce *coalesce)
2596 {
2597 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2598 int i, ret;
2599 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2600 struct mwifiex_private *priv =
2601 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2602
2603 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2604 if (!coalesce) {
2605 dev_dbg(adapter->dev,
2606 "Disable coalesce and reset all previous rules\n");
2607 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2608 HostCmd_ACT_GEN_SET, 0,
2609 &coalesce_cfg, true);
2610 }
2611
2612 coalesce_cfg.num_of_rules = coalesce->n_rules;
2613 for (i = 0; i < coalesce->n_rules; i++) {
2614 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2615 &coalesce_cfg.rule[i]);
2616 if (ret) {
2617 dev_err(priv->adapter->dev,
2618 "Recheck the patterns provided for rule %d\n",
2619 i + 1);
2620 return ret;
2621 }
2622 }
2623
2624 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2625 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2626 }
2627
2628 /* cfg80211 ops handler for tdls_mgmt.
2629 * Function prepares TDLS action frame packets and forwards them to FW
2630 */
2631 static int
2632 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2633 const u8 *peer, u8 action_code, u8 dialog_token,
2634 u16 status_code, u32 peer_capability,
2635 const u8 *extra_ies, size_t extra_ies_len)
2636 {
2637 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2638 int ret;
2639
2640 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2641 return -ENOTSUPP;
2642
2643 /* make sure we are in station mode and connected */
2644 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2645 return -ENOTSUPP;
2646
2647 switch (action_code) {
2648 case WLAN_TDLS_SETUP_REQUEST:
2649 dev_dbg(priv->adapter->dev,
2650 "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2651 status_code);
2652 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2653 dialog_token, status_code,
2654 extra_ies, extra_ies_len);
2655 break;
2656 case WLAN_TDLS_SETUP_RESPONSE:
2657 dev_dbg(priv->adapter->dev,
2658 "Send TDLS Setup Response to %pM status_code=%d\n",
2659 peer, status_code);
2660 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2661 dialog_token, status_code,
2662 extra_ies, extra_ies_len);
2663 break;
2664 case WLAN_TDLS_SETUP_CONFIRM:
2665 dev_dbg(priv->adapter->dev,
2666 "Send TDLS Confirm to %pM status_code=%d\n", peer,
2667 status_code);
2668 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2669 dialog_token, status_code,
2670 extra_ies, extra_ies_len);
2671 break;
2672 case WLAN_TDLS_TEARDOWN:
2673 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2674 peer);
2675 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2676 dialog_token, status_code,
2677 extra_ies, extra_ies_len);
2678 break;
2679 case WLAN_TDLS_DISCOVERY_REQUEST:
2680 dev_dbg(priv->adapter->dev,
2681 "Send TDLS Discovery Request to %pM\n", peer);
2682 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2683 dialog_token, status_code,
2684 extra_ies, extra_ies_len);
2685 break;
2686 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2687 dev_dbg(priv->adapter->dev,
2688 "Send TDLS Discovery Response to %pM\n", peer);
2689 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2690 dialog_token, status_code,
2691 extra_ies, extra_ies_len);
2692 break;
2693 default:
2694 dev_warn(priv->adapter->dev,
2695 "Unknown TDLS mgmt/action frame %pM\n", peer);
2696 ret = -EINVAL;
2697 break;
2698 }
2699
2700 return ret;
2701 }
2702
2703 static int
2704 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2705 const u8 *peer, enum nl80211_tdls_operation action)
2706 {
2707 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2708
2709 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2710 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2711 return -ENOTSUPP;
2712
2713 /* make sure we are in station mode and connected */
2714 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2715 return -ENOTSUPP;
2716
2717 dev_dbg(priv->adapter->dev,
2718 "TDLS peer=%pM, oper=%d\n", peer, action);
2719
2720 switch (action) {
2721 case NL80211_TDLS_ENABLE_LINK:
2722 action = MWIFIEX_TDLS_ENABLE_LINK;
2723 break;
2724 case NL80211_TDLS_DISABLE_LINK:
2725 action = MWIFIEX_TDLS_DISABLE_LINK;
2726 break;
2727 case NL80211_TDLS_TEARDOWN:
2728 /* shouldn't happen!*/
2729 dev_warn(priv->adapter->dev,
2730 "tdls_oper: teardown from driver not supported\n");
2731 return -EINVAL;
2732 case NL80211_TDLS_SETUP:
2733 /* shouldn't happen!*/
2734 dev_warn(priv->adapter->dev,
2735 "tdls_oper: setup from driver not supported\n");
2736 return -EINVAL;
2737 case NL80211_TDLS_DISCOVERY_REQ:
2738 /* shouldn't happen!*/
2739 dev_warn(priv->adapter->dev,
2740 "tdls_oper: discovery from driver not supported\n");
2741 return -EINVAL;
2742 default:
2743 dev_err(priv->adapter->dev,
2744 "tdls_oper: operation not supported\n");
2745 return -ENOTSUPP;
2746 }
2747
2748 return mwifiex_tdls_oper(priv, peer, action);
2749 }
2750
2751 static int
2752 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2753 const u8 *mac, struct station_parameters *params)
2754 {
2755 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2756
2757 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2758 return -ENOTSUPP;
2759
2760 /* make sure we are in station mode and connected */
2761 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2762 return -ENOTSUPP;
2763
2764 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2765 }
2766
2767 static int
2768 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2769 const u8 *mac,
2770 struct station_parameters *params)
2771 {
2772 int ret;
2773 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2774
2775 /* we support change_station handler only for TDLS peers*/
2776 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2777 return -ENOTSUPP;
2778
2779 /* make sure we are in station mode and connected */
2780 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2781 return -ENOTSUPP;
2782
2783 priv->sta_params = params;
2784
2785 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2786 priv->sta_params = NULL;
2787
2788 return ret;
2789 }
2790
2791 /* station cfg80211 operations */
2792 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2793 .add_virtual_intf = mwifiex_add_virtual_intf,
2794 .del_virtual_intf = mwifiex_del_virtual_intf,
2795 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2796 .scan = mwifiex_cfg80211_scan,
2797 .connect = mwifiex_cfg80211_connect,
2798 .disconnect = mwifiex_cfg80211_disconnect,
2799 .get_station = mwifiex_cfg80211_get_station,
2800 .dump_station = mwifiex_cfg80211_dump_station,
2801 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2802 .join_ibss = mwifiex_cfg80211_join_ibss,
2803 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2804 .add_key = mwifiex_cfg80211_add_key,
2805 .del_key = mwifiex_cfg80211_del_key,
2806 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2807 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2808 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2809 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2810 .set_default_key = mwifiex_cfg80211_set_default_key,
2811 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2812 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2813 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2814 .start_ap = mwifiex_cfg80211_start_ap,
2815 .stop_ap = mwifiex_cfg80211_stop_ap,
2816 .change_beacon = mwifiex_cfg80211_change_beacon,
2817 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2818 .set_antenna = mwifiex_cfg80211_set_antenna,
2819 .del_station = mwifiex_cfg80211_del_station,
2820 #ifdef CONFIG_PM
2821 .suspend = mwifiex_cfg80211_suspend,
2822 .resume = mwifiex_cfg80211_resume,
2823 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2824 #endif
2825 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2826 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2827 .tdls_oper = mwifiex_cfg80211_tdls_oper,
2828 .add_station = mwifiex_cfg80211_add_station,
2829 .change_station = mwifiex_cfg80211_change_station,
2830 };
2831
2832 #ifdef CONFIG_PM
2833 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2834 .flags = WIPHY_WOWLAN_MAGIC_PKT,
2835 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2836 .pattern_min_len = 1,
2837 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2838 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2839 };
2840 #endif
2841
2842 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2843 {
2844 if (!alpha2 || strlen(alpha2) != 2)
2845 return false;
2846
2847 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2848 return true;
2849
2850 return false;
2851 }
2852
2853 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2854 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2855 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2856 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2857 .pattern_min_len = 1,
2858 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2859 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2860 };
2861
2862 /*
2863 * This function registers the device with CFG802.11 subsystem.
2864 *
2865 * The function creates the wireless device/wiphy, populates it with
2866 * default parameters and handler function pointers, and finally
2867 * registers the device.
2868 */
2869
2870 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2871 {
2872 int ret;
2873 void *wdev_priv;
2874 struct wiphy *wiphy;
2875 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2876 u8 *country_code;
2877 u32 thr, retry;
2878
2879 /* create a new wiphy for use with cfg80211 */
2880 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2881 sizeof(struct mwifiex_adapter *));
2882 if (!wiphy) {
2883 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2884 return -ENOMEM;
2885 }
2886 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2887 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2888 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2889 wiphy->max_remain_on_channel_duration = 5000;
2890 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2891 BIT(NL80211_IFTYPE_ADHOC) |
2892 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2893 BIT(NL80211_IFTYPE_P2P_GO) |
2894 BIT(NL80211_IFTYPE_AP);
2895
2896 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2897 if (adapter->config_bands & BAND_A)
2898 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2899 else
2900 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2901
2902 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2903 wiphy->n_iface_combinations = 1;
2904
2905 /* Initialize cipher suits */
2906 wiphy->cipher_suites = mwifiex_cipher_suites;
2907 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2908
2909 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2910 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2911 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2912 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2913 WIPHY_FLAG_AP_UAPSD |
2914 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2915
2916 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2917 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2918 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2919
2920 wiphy->regulatory_flags |=
2921 REGULATORY_CUSTOM_REG |
2922 REGULATORY_STRICT_REG;
2923
2924 wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2925
2926 #ifdef CONFIG_PM
2927 wiphy->wowlan = &mwifiex_wowlan_support;
2928 #endif
2929
2930 wiphy->coalesce = &mwifiex_coalesce_support;
2931
2932 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2933 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2934 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2935
2936 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2937 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2938
2939 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2940 NL80211_FEATURE_INACTIVITY_TIMER |
2941 NL80211_FEATURE_LOW_PRIORITY_SCAN |
2942 NL80211_FEATURE_NEED_OBSS_SCAN;
2943
2944 /* Reserve space for mwifiex specific private data for BSS */
2945 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2946
2947 wiphy->reg_notifier = mwifiex_reg_notifier;
2948
2949 /* Set struct mwifiex_adapter pointer in wiphy_priv */
2950 wdev_priv = wiphy_priv(wiphy);
2951 *(unsigned long *)wdev_priv = (unsigned long)adapter;
2952
2953 set_wiphy_dev(wiphy, priv->adapter->dev);
2954
2955 ret = wiphy_register(wiphy);
2956 if (ret < 0) {
2957 dev_err(adapter->dev,
2958 "%s: wiphy_register failed: %d\n", __func__, ret);
2959 wiphy_free(wiphy);
2960 return ret;
2961 }
2962
2963 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2964 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2965 regulatory_hint(wiphy, reg_alpha2);
2966 } else {
2967 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2968 if (country_code)
2969 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2970 country_code);
2971 }
2972
2973 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2974 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
2975 wiphy->frag_threshold = thr;
2976 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2977 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
2978 wiphy->rts_threshold = thr;
2979 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2980 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
2981 wiphy->retry_short = (u8) retry;
2982 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
2983 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
2984 wiphy->retry_long = (u8) retry;
2985
2986 adapter->wiphy = wiphy;
2987 return ret;
2988 }
Linux kernel - Deliverables
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