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Merge commit 'c1e140bf79d817d4a7aa9932eb98b0359c87af33' from mac80211-next
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22
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 /*
46 * This function maps the nl802.11 channel type into driver channel type.
47 *
48 * The mapping is as follows -
49 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
50 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
51 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
52 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
53 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
54 */
55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
56 {
57 switch (chan_type) {
58 case NL80211_CHAN_NO_HT:
59 case NL80211_CHAN_HT20:
60 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
61 case NL80211_CHAN_HT40PLUS:
62 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
63 case NL80211_CHAN_HT40MINUS:
64 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
65 default:
66 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
67 }
68 }
69
70 /*
71 * This function checks whether WEP is set.
72 */
73 static int
74 mwifiex_is_alg_wep(u32 cipher)
75 {
76 switch (cipher) {
77 case WLAN_CIPHER_SUITE_WEP40:
78 case WLAN_CIPHER_SUITE_WEP104:
79 return 1;
80 default:
81 break;
82 }
83
84 return 0;
85 }
86
87 /*
88 * This function retrieves the private structure from kernel wiphy structure.
89 */
90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
91 {
92 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
93 }
94
95 /*
96 * CFG802.11 operation handler to delete a network key.
97 */
98 static int
99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
100 u8 key_index, bool pairwise, const u8 *mac_addr)
101 {
102 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
103 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
104 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
105
106 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
107 wiphy_err(wiphy, "deleting the crypto keys\n");
108 return -EFAULT;
109 }
110
111 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
112 return 0;
113 }
114
115 /*
116 * This function forms an skb for management frame.
117 */
118 static int
119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
120 {
121 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
122 u16 pkt_len;
123 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
124
125 pkt_len = len + ETH_ALEN;
126
127 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
128 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
129 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
130
131 memcpy(skb_push(skb, sizeof(tx_control)),
132 &tx_control, sizeof(tx_control));
133
134 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
135
136 /* Add packet data and address4 */
137 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
138 sizeof(struct ieee80211_hdr_3addr));
139 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
140 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
141 buf + sizeof(struct ieee80211_hdr_3addr),
142 len - sizeof(struct ieee80211_hdr_3addr));
143
144 skb->priority = LOW_PRIO_TID;
145 __net_timestamp(skb);
146
147 return 0;
148 }
149
150 /*
151 * CFG802.11 operation handler to transmit a management frame.
152 */
153 static int
154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
155 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
156 {
157 const u8 *buf = params->buf;
158 size_t len = params->len;
159 struct sk_buff *skb;
160 u16 pkt_len;
161 const struct ieee80211_mgmt *mgmt;
162 struct mwifiex_txinfo *tx_info;
163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
164
165 if (!buf || !len) {
166 wiphy_err(wiphy, "invalid buffer and length\n");
167 return -EFAULT;
168 }
169
170 mgmt = (const struct ieee80211_mgmt *)buf;
171 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
172 ieee80211_is_probe_resp(mgmt->frame_control)) {
173 /* Since we support offload probe resp, we need to skip probe
174 * resp in AP or GO mode */
175 wiphy_dbg(wiphy,
176 "info: skip to send probe resp in AP or GO mode\n");
177 return 0;
178 }
179
180 pkt_len = len + ETH_ALEN;
181 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
182 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
183 pkt_len + sizeof(pkt_len));
184
185 if (!skb) {
186 wiphy_err(wiphy, "allocate skb failed for management frame\n");
187 return -ENOMEM;
188 }
189
190 tx_info = MWIFIEX_SKB_TXCB(skb);
191 memset(tx_info, 0, sizeof(*tx_info));
192 tx_info->bss_num = priv->bss_num;
193 tx_info->bss_type = priv->bss_type;
194 tx_info->pkt_len = pkt_len;
195
196 mwifiex_form_mgmt_frame(skb, buf, len);
197 *cookie = prandom_u32() | 1;
198
199 if (ieee80211_is_action(mgmt->frame_control))
200 skb = mwifiex_clone_skb_for_tx_status(priv,
201 skb,
202 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
203 else
204 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
205 GFP_ATOMIC);
206
207 mwifiex_queue_tx_pkt(priv, skb);
208
209 wiphy_dbg(wiphy, "info: management frame transmitted\n");
210 return 0;
211 }
212
213 /*
214 * CFG802.11 operation handler to register a mgmt frame.
215 */
216 static void
217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 u16 frame_type, bool reg)
220 {
221 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
222 u32 mask;
223
224 if (reg)
225 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
226 else
227 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
228
229 if (mask != priv->mgmt_frame_mask) {
230 priv->mgmt_frame_mask = mask;
231 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
232 HostCmd_ACT_GEN_SET, 0,
233 &priv->mgmt_frame_mask, false);
234 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
235 }
236 }
237
238 /*
239 * CFG802.11 operation handler to remain on channel.
240 */
241 static int
242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
243 struct wireless_dev *wdev,
244 struct ieee80211_channel *chan,
245 unsigned int duration, u64 *cookie)
246 {
247 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
248 int ret;
249
250 if (!chan || !cookie) {
251 wiphy_err(wiphy, "Invalid parameter for ROC\n");
252 return -EINVAL;
253 }
254
255 if (priv->roc_cfg.cookie) {
256 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
257 priv->roc_cfg.cookie);
258 return -EBUSY;
259 }
260
261 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
262 duration);
263
264 if (!ret) {
265 *cookie = prandom_u32() | 1;
266 priv->roc_cfg.cookie = *cookie;
267 priv->roc_cfg.chan = *chan;
268
269 cfg80211_ready_on_channel(wdev, *cookie, chan,
270 duration, GFP_ATOMIC);
271
272 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
273 }
274
275 return ret;
276 }
277
278 /*
279 * CFG802.11 operation handler to cancel remain on channel.
280 */
281 static int
282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
283 struct wireless_dev *wdev, u64 cookie)
284 {
285 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
286 int ret;
287
288 if (cookie != priv->roc_cfg.cookie)
289 return -ENOENT;
290
291 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
292 &priv->roc_cfg.chan, 0);
293
294 if (!ret) {
295 cfg80211_remain_on_channel_expired(wdev, cookie,
296 &priv->roc_cfg.chan,
297 GFP_ATOMIC);
298
299 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
300
301 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
302 }
303
304 return ret;
305 }
306
307 /*
308 * CFG802.11 operation handler to set Tx power.
309 */
310 static int
311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
312 struct wireless_dev *wdev,
313 enum nl80211_tx_power_setting type,
314 int mbm)
315 {
316 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
317 struct mwifiex_private *priv;
318 struct mwifiex_power_cfg power_cfg;
319 int dbm = MBM_TO_DBM(mbm);
320
321 if (type == NL80211_TX_POWER_FIXED) {
322 power_cfg.is_power_auto = 0;
323 power_cfg.power_level = dbm;
324 } else {
325 power_cfg.is_power_auto = 1;
326 }
327
328 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
329
330 return mwifiex_set_tx_power(priv, &power_cfg);
331 }
332
333 /*
334 * CFG802.11 operation handler to set Power Save option.
335 *
336 * The timeout value, if provided, is currently ignored.
337 */
338 static int
339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
340 struct net_device *dev,
341 bool enabled, int timeout)
342 {
343 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
344 u32 ps_mode;
345
346 if (timeout)
347 wiphy_dbg(wiphy,
348 "info: ignore timeout value for IEEE Power Save\n");
349
350 ps_mode = enabled;
351
352 return mwifiex_drv_set_power(priv, &ps_mode);
353 }
354
355 /*
356 * CFG802.11 operation handler to set the default network key.
357 */
358 static int
359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
360 u8 key_index, bool unicast,
361 bool multicast)
362 {
363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
364
365 /* Return if WEP key not configured */
366 if (!priv->sec_info.wep_enabled)
367 return 0;
368
369 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
370 priv->wep_key_curr_index = key_index;
371 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
372 NULL, 0)) {
373 wiphy_err(wiphy, "set default Tx key index\n");
374 return -EFAULT;
375 }
376
377 return 0;
378 }
379
380 /*
381 * CFG802.11 operation handler to add a network key.
382 */
383 static int
384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
385 u8 key_index, bool pairwise, const u8 *mac_addr,
386 struct key_params *params)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
389 struct mwifiex_wep_key *wep_key;
390 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
391 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
392
393 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
394 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
395 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
396 if (params->key && params->key_len) {
397 wep_key = &priv->wep_key[key_index];
398 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
399 memcpy(wep_key->key_material, params->key,
400 params->key_len);
401 wep_key->key_index = key_index;
402 wep_key->key_length = params->key_len;
403 priv->sec_info.wep_enabled = 1;
404 }
405 return 0;
406 }
407
408 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
409 key_index, peer_mac, 0)) {
410 wiphy_err(wiphy, "crypto keys added\n");
411 return -EFAULT;
412 }
413
414 return 0;
415 }
416
417 /*
418 * This function sends domain information to the firmware.
419 *
420 * The following information are passed to the firmware -
421 * - Country codes
422 * - Sub bands (first channel, number of channels, maximum Tx power)
423 */
424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
425 {
426 u8 no_of_triplet = 0;
427 struct ieee80211_country_ie_triplet *t;
428 u8 no_of_parsed_chan = 0;
429 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
430 u8 i, flag = 0;
431 enum ieee80211_band band;
432 struct ieee80211_supported_band *sband;
433 struct ieee80211_channel *ch;
434 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
435 struct mwifiex_private *priv;
436 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
437
438 /* Set country code */
439 domain_info->country_code[0] = adapter->country_code[0];
440 domain_info->country_code[1] = adapter->country_code[1];
441 domain_info->country_code[2] = ' ';
442
443 band = mwifiex_band_to_radio_type(adapter->config_bands);
444 if (!wiphy->bands[band]) {
445 wiphy_err(wiphy, "11D: setting domain info in FW\n");
446 return -1;
447 }
448
449 sband = wiphy->bands[band];
450
451 for (i = 0; i < sband->n_channels ; i++) {
452 ch = &sband->channels[i];
453 if (ch->flags & IEEE80211_CHAN_DISABLED)
454 continue;
455
456 if (!flag) {
457 flag = 1;
458 first_chan = (u32) ch->hw_value;
459 next_chan = first_chan;
460 max_pwr = ch->max_power;
461 no_of_parsed_chan = 1;
462 continue;
463 }
464
465 if (ch->hw_value == next_chan + 1 &&
466 ch->max_power == max_pwr) {
467 next_chan++;
468 no_of_parsed_chan++;
469 } else {
470 t = &domain_info->triplet[no_of_triplet];
471 t->chans.first_channel = first_chan;
472 t->chans.num_channels = no_of_parsed_chan;
473 t->chans.max_power = max_pwr;
474 no_of_triplet++;
475 first_chan = (u32) ch->hw_value;
476 next_chan = first_chan;
477 max_pwr = ch->max_power;
478 no_of_parsed_chan = 1;
479 }
480 }
481
482 if (flag) {
483 t = &domain_info->triplet[no_of_triplet];
484 t->chans.first_channel = first_chan;
485 t->chans.num_channels = no_of_parsed_chan;
486 t->chans.max_power = max_pwr;
487 no_of_triplet++;
488 }
489
490 domain_info->no_of_triplet = no_of_triplet;
491
492 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
493
494 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
495 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
496 wiphy_err(wiphy, "11D: setting domain info in FW\n");
497 return -1;
498 }
499
500 return 0;
501 }
502
503 /*
504 * CFG802.11 regulatory domain callback function.
505 *
506 * This function is called when the regulatory domain is changed due to the
507 * following reasons -
508 * - Set by driver
509 * - Set by system core
510 * - Set by user
511 * - Set bt Country IE
512 */
513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
514 struct regulatory_request *request)
515 {
516 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
517 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
518 MWIFIEX_BSS_ROLE_ANY);
519
520 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
521 request->alpha2[0], request->alpha2[1]);
522
523 switch (request->initiator) {
524 case NL80211_REGDOM_SET_BY_DRIVER:
525 case NL80211_REGDOM_SET_BY_CORE:
526 case NL80211_REGDOM_SET_BY_USER:
527 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
528 break;
529 default:
530 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
531 request->initiator);
532 return;
533 }
534
535 /* Don't send world or same regdom info to firmware */
536 if (strncmp(request->alpha2, "00", 2) &&
537 strncmp(request->alpha2, adapter->country_code,
538 sizeof(request->alpha2))) {
539 memcpy(adapter->country_code, request->alpha2,
540 sizeof(request->alpha2));
541 mwifiex_send_domain_info_cmd_fw(wiphy);
542 mwifiex_dnld_txpwr_table(priv);
543 }
544 }
545
546 /*
547 * This function sets the fragmentation threshold.
548 *
549 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
550 * and MWIFIEX_FRAG_MAX_VALUE.
551 */
552 static int
553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
554 {
555 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
556 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
557 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
558
559 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
560 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
561 &frag_thr, true);
562 }
563
564 /*
565 * This function sets the RTS threshold.
566
567 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
568 * and MWIFIEX_RTS_MAX_VALUE.
569 */
570 static int
571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
572 {
573 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
574 rts_thr = MWIFIEX_RTS_MAX_VALUE;
575
576 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
577 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
578 &rts_thr, true);
579 }
580
581 /*
582 * CFG802.11 operation handler to set wiphy parameters.
583 *
584 * This function can be used to set the RTS threshold and the
585 * Fragmentation threshold of the driver.
586 */
587 static int
588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
589 {
590 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
591 struct mwifiex_private *priv;
592 struct mwifiex_uap_bss_param *bss_cfg;
593 int ret, bss_started, i;
594
595 for (i = 0; i < adapter->priv_num; i++) {
596 priv = adapter->priv[i];
597
598 switch (priv->bss_role) {
599 case MWIFIEX_BSS_ROLE_UAP:
600 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
601 GFP_KERNEL);
602 if (!bss_cfg)
603 return -ENOMEM;
604
605 mwifiex_set_sys_config_invalid_data(bss_cfg);
606
607 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
608 bss_cfg->rts_threshold = wiphy->rts_threshold;
609 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
610 bss_cfg->frag_threshold = wiphy->frag_threshold;
611 if (changed & WIPHY_PARAM_RETRY_LONG)
612 bss_cfg->retry_limit = wiphy->retry_long;
613
614 bss_started = priv->bss_started;
615
616 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
617 HostCmd_ACT_GEN_SET, 0,
618 NULL, true);
619 if (ret) {
620 wiphy_err(wiphy, "Failed to stop the BSS\n");
621 kfree(bss_cfg);
622 return ret;
623 }
624
625 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
626 HostCmd_ACT_GEN_SET,
627 UAP_BSS_PARAMS_I, bss_cfg,
628 false);
629
630 kfree(bss_cfg);
631
632 if (ret) {
633 wiphy_err(wiphy, "Failed to set bss config\n");
634 return ret;
635 }
636
637 if (!bss_started)
638 break;
639
640 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
641 HostCmd_ACT_GEN_SET, 0,
642 NULL, false);
643 if (ret) {
644 wiphy_err(wiphy, "Failed to start BSS\n");
645 return ret;
646 }
647
648 break;
649 case MWIFIEX_BSS_ROLE_STA:
650 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
651 ret = mwifiex_set_rts(priv,
652 wiphy->rts_threshold);
653 if (ret)
654 return ret;
655 }
656 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
657 ret = mwifiex_set_frag(priv,
658 wiphy->frag_threshold);
659 if (ret)
660 return ret;
661 }
662 break;
663 }
664 }
665
666 return 0;
667 }
668
669 static int
670 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
671 {
672 u16 mode = P2P_MODE_DISABLE;
673
674 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
675 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
676
677 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
678 HostCmd_ACT_GEN_SET, 0, &mode, true))
679 return -1;
680
681 return 0;
682 }
683
684 /*
685 * This function initializes the functionalities for P2P client.
686 * The P2P client initialization sequence is:
687 * disable -> device -> client
688 */
689 static int
690 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
691 {
692 u16 mode;
693
694 if (mwifiex_cfg80211_deinit_p2p(priv))
695 return -1;
696
697 mode = P2P_MODE_DEVICE;
698 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
699 HostCmd_ACT_GEN_SET, 0, &mode, true))
700 return -1;
701
702 mode = P2P_MODE_CLIENT;
703 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
704 HostCmd_ACT_GEN_SET, 0, &mode, true))
705 return -1;
706
707 return 0;
708 }
709
710 /*
711 * This function initializes the functionalities for P2P GO.
712 * The P2P GO initialization sequence is:
713 * disable -> device -> GO
714 */
715 static int
716 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
717 {
718 u16 mode;
719
720 if (mwifiex_cfg80211_deinit_p2p(priv))
721 return -1;
722
723 mode = P2P_MODE_DEVICE;
724 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
725 HostCmd_ACT_GEN_SET, 0, &mode, true))
726 return -1;
727
728 mode = P2P_MODE_GO;
729 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
730 HostCmd_ACT_GEN_SET, 0, &mode, true))
731 return -1;
732
733 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
734 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
735
736 return 0;
737 }
738
739 /*
740 * CFG802.11 operation handler to change interface type.
741 */
742 static int
743 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
744 struct net_device *dev,
745 enum nl80211_iftype type, u32 *flags,
746 struct vif_params *params)
747 {
748 int ret;
749 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
750
751 switch (dev->ieee80211_ptr->iftype) {
752 case NL80211_IFTYPE_ADHOC:
753 switch (type) {
754 case NL80211_IFTYPE_STATION:
755 break;
756 case NL80211_IFTYPE_UNSPECIFIED:
757 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
758 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
759 return 0;
760 case NL80211_IFTYPE_AP:
761 default:
762 wiphy_err(wiphy, "%s: changing to %d not supported\n",
763 dev->name, type);
764 return -EOPNOTSUPP;
765 }
766 break;
767 case NL80211_IFTYPE_STATION:
768 switch (type) {
769 case NL80211_IFTYPE_ADHOC:
770 break;
771 case NL80211_IFTYPE_P2P_CLIENT:
772 if (mwifiex_cfg80211_init_p2p_client(priv))
773 return -EFAULT;
774 dev->ieee80211_ptr->iftype = type;
775 return 0;
776 case NL80211_IFTYPE_P2P_GO:
777 if (mwifiex_cfg80211_init_p2p_go(priv))
778 return -EFAULT;
779 dev->ieee80211_ptr->iftype = type;
780 return 0;
781 case NL80211_IFTYPE_UNSPECIFIED:
782 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
783 case NL80211_IFTYPE_STATION: /* 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_AP:
793 switch (type) {
794 case NL80211_IFTYPE_UNSPECIFIED:
795 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
796 case NL80211_IFTYPE_AP: /* This shouldn't happen */
797 return 0;
798 case NL80211_IFTYPE_ADHOC:
799 case NL80211_IFTYPE_STATION:
800 default:
801 wiphy_err(wiphy, "%s: changing to %d not supported\n",
802 dev->name, type);
803 return -EOPNOTSUPP;
804 }
805 break;
806 case NL80211_IFTYPE_P2P_CLIENT:
807 case NL80211_IFTYPE_P2P_GO:
808 switch (type) {
809 case NL80211_IFTYPE_STATION:
810 if (mwifiex_cfg80211_deinit_p2p(priv))
811 return -EFAULT;
812 dev->ieee80211_ptr->iftype = type;
813 return 0;
814 default:
815 return -EOPNOTSUPP;
816 }
817 break;
818 default:
819 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
820 dev->name, dev->ieee80211_ptr->iftype);
821 return -EOPNOTSUPP;
822 }
823
824 dev->ieee80211_ptr->iftype = type;
825 priv->bss_mode = type;
826 mwifiex_deauthenticate(priv, NULL);
827
828 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
829
830 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
831 HostCmd_ACT_GEN_SET, 0, NULL, true);
832
833 return ret;
834 }
835
836 static void
837 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
838 struct rate_info *rate)
839 {
840 struct mwifiex_adapter *adapter = priv->adapter;
841
842 if (adapter->is_hw_11ac_capable) {
843 /* bit[1-0]: 00=LG 01=HT 10=VHT */
844 if (tx_htinfo & BIT(0)) {
845 /* HT */
846 rate->mcs = priv->tx_rate;
847 rate->flags |= RATE_INFO_FLAGS_MCS;
848 }
849 if (tx_htinfo & BIT(1)) {
850 /* VHT */
851 rate->mcs = priv->tx_rate & 0x0F;
852 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
853 }
854
855 if (tx_htinfo & (BIT(1) | BIT(0))) {
856 /* HT or VHT */
857 switch (tx_htinfo & (BIT(3) | BIT(2))) {
858 case 0:
859 rate->bw = RATE_INFO_BW_20;
860 break;
861 case (BIT(2)):
862 rate->bw = RATE_INFO_BW_40;
863 break;
864 case (BIT(3)):
865 rate->bw = RATE_INFO_BW_80;
866 break;
867 case (BIT(3) | BIT(2)):
868 rate->bw = RATE_INFO_BW_160;
869 break;
870 }
871
872 if (tx_htinfo & BIT(4))
873 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
874
875 if ((priv->tx_rate >> 4) == 1)
876 rate->nss = 2;
877 else
878 rate->nss = 1;
879 }
880 } else {
881 /*
882 * Bit 0 in tx_htinfo indicates that current Tx rate
883 * is 11n rate. Valid MCS index values for us are 0 to 15.
884 */
885 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
886 rate->mcs = priv->tx_rate;
887 rate->flags |= RATE_INFO_FLAGS_MCS;
888 rate->bw = RATE_INFO_BW_20;
889 if (tx_htinfo & BIT(1))
890 rate->bw = RATE_INFO_BW_40;
891 if (tx_htinfo & BIT(2))
892 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
893 }
894 }
895 }
896
897 /*
898 * This function dumps the station information on a buffer.
899 *
900 * The following information are shown -
901 * - Total bytes transmitted
902 * - Total bytes received
903 * - Total packets transmitted
904 * - Total packets received
905 * - Signal quality level
906 * - Transmission rate
907 */
908 static int
909 mwifiex_dump_station_info(struct mwifiex_private *priv,
910 struct station_info *sinfo)
911 {
912 u32 rate;
913
914 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
915 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
916 BIT(NL80211_STA_INFO_TX_BITRATE) |
917 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
918
919 /* Get signal information from the firmware */
920 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
921 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
922 dev_err(priv->adapter->dev, "failed to get signal information\n");
923 return -EFAULT;
924 }
925
926 if (mwifiex_drv_get_data_rate(priv, &rate)) {
927 dev_err(priv->adapter->dev, "getting data rate\n");
928 return -EFAULT;
929 }
930
931 /* Get DTIM period information from firmware */
932 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
933 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
934 &priv->dtim_period, true);
935
936 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
937
938 sinfo->signal_avg = priv->bcn_rssi_avg;
939 sinfo->rx_bytes = priv->stats.rx_bytes;
940 sinfo->tx_bytes = priv->stats.tx_bytes;
941 sinfo->rx_packets = priv->stats.rx_packets;
942 sinfo->tx_packets = priv->stats.tx_packets;
943 sinfo->signal = priv->bcn_rssi_avg;
944 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
945 sinfo->txrate.legacy = rate * 5;
946
947 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
948 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
949 sinfo->bss_param.flags = 0;
950 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
951 WLAN_CAPABILITY_SHORT_PREAMBLE)
952 sinfo->bss_param.flags |=
953 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
954 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
955 WLAN_CAPABILITY_SHORT_SLOT_TIME)
956 sinfo->bss_param.flags |=
957 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
958 sinfo->bss_param.dtim_period = priv->dtim_period;
959 sinfo->bss_param.beacon_interval =
960 priv->curr_bss_params.bss_descriptor.beacon_period;
961 }
962
963 return 0;
964 }
965
966 /*
967 * CFG802.11 operation handler to get station information.
968 *
969 * This function only works in connected mode, and dumps the
970 * requested station information, if available.
971 */
972 static int
973 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
974 const u8 *mac, struct station_info *sinfo)
975 {
976 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
977
978 if (!priv->media_connected)
979 return -ENOENT;
980 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
981 return -ENOENT;
982
983 return mwifiex_dump_station_info(priv, sinfo);
984 }
985
986 /*
987 * CFG802.11 operation handler to dump station information.
988 */
989 static int
990 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
991 int idx, u8 *mac, struct station_info *sinfo)
992 {
993 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
994
995 if (!priv->media_connected || idx)
996 return -ENOENT;
997
998 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
999
1000 return mwifiex_dump_station_info(priv, sinfo);
1001 }
1002
1003 static int
1004 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1005 int idx, struct survey_info *survey)
1006 {
1007 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1008 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1009 enum ieee80211_band band;
1010
1011 dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1012
1013 memset(survey, 0, sizeof(struct survey_info));
1014
1015 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1016 priv->media_connected && idx == 0) {
1017 u8 curr_bss_band = priv->curr_bss_params.band;
1018 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1019
1020 band = mwifiex_band_to_radio_type(curr_bss_band);
1021 survey->channel = ieee80211_get_channel(wiphy,
1022 ieee80211_channel_to_frequency(chan, band));
1023
1024 if (priv->bcn_nf_last) {
1025 survey->filled = SURVEY_INFO_NOISE_DBM;
1026 survey->noise = priv->bcn_nf_last;
1027 }
1028 return 0;
1029 }
1030
1031 if (idx >= priv->adapter->num_in_chan_stats)
1032 return -ENOENT;
1033
1034 if (!pchan_stats[idx].cca_scan_dur)
1035 return 0;
1036
1037 band = pchan_stats[idx].bandcfg;
1038 survey->channel = ieee80211_get_channel(wiphy,
1039 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1040 survey->filled = SURVEY_INFO_NOISE_DBM |
1041 SURVEY_INFO_TIME |
1042 SURVEY_INFO_TIME_BUSY;
1043 survey->noise = pchan_stats[idx].noise;
1044 survey->time = pchan_stats[idx].cca_scan_dur;
1045 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1046
1047 return 0;
1048 }
1049
1050 /* Supported rates to be advertised to the cfg80211 */
1051 static struct ieee80211_rate mwifiex_rates[] = {
1052 {.bitrate = 10, .hw_value = 2, },
1053 {.bitrate = 20, .hw_value = 4, },
1054 {.bitrate = 55, .hw_value = 11, },
1055 {.bitrate = 110, .hw_value = 22, },
1056 {.bitrate = 60, .hw_value = 12, },
1057 {.bitrate = 90, .hw_value = 18, },
1058 {.bitrate = 120, .hw_value = 24, },
1059 {.bitrate = 180, .hw_value = 36, },
1060 {.bitrate = 240, .hw_value = 48, },
1061 {.bitrate = 360, .hw_value = 72, },
1062 {.bitrate = 480, .hw_value = 96, },
1063 {.bitrate = 540, .hw_value = 108, },
1064 };
1065
1066 /* Channel definitions to be advertised to cfg80211 */
1067 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1068 {.center_freq = 2412, .hw_value = 1, },
1069 {.center_freq = 2417, .hw_value = 2, },
1070 {.center_freq = 2422, .hw_value = 3, },
1071 {.center_freq = 2427, .hw_value = 4, },
1072 {.center_freq = 2432, .hw_value = 5, },
1073 {.center_freq = 2437, .hw_value = 6, },
1074 {.center_freq = 2442, .hw_value = 7, },
1075 {.center_freq = 2447, .hw_value = 8, },
1076 {.center_freq = 2452, .hw_value = 9, },
1077 {.center_freq = 2457, .hw_value = 10, },
1078 {.center_freq = 2462, .hw_value = 11, },
1079 {.center_freq = 2467, .hw_value = 12, },
1080 {.center_freq = 2472, .hw_value = 13, },
1081 {.center_freq = 2484, .hw_value = 14, },
1082 };
1083
1084 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1085 .channels = mwifiex_channels_2ghz,
1086 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1087 .bitrates = mwifiex_rates,
1088 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1089 };
1090
1091 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1092 {.center_freq = 5040, .hw_value = 8, },
1093 {.center_freq = 5060, .hw_value = 12, },
1094 {.center_freq = 5080, .hw_value = 16, },
1095 {.center_freq = 5170, .hw_value = 34, },
1096 {.center_freq = 5190, .hw_value = 38, },
1097 {.center_freq = 5210, .hw_value = 42, },
1098 {.center_freq = 5230, .hw_value = 46, },
1099 {.center_freq = 5180, .hw_value = 36, },
1100 {.center_freq = 5200, .hw_value = 40, },
1101 {.center_freq = 5220, .hw_value = 44, },
1102 {.center_freq = 5240, .hw_value = 48, },
1103 {.center_freq = 5260, .hw_value = 52, },
1104 {.center_freq = 5280, .hw_value = 56, },
1105 {.center_freq = 5300, .hw_value = 60, },
1106 {.center_freq = 5320, .hw_value = 64, },
1107 {.center_freq = 5500, .hw_value = 100, },
1108 {.center_freq = 5520, .hw_value = 104, },
1109 {.center_freq = 5540, .hw_value = 108, },
1110 {.center_freq = 5560, .hw_value = 112, },
1111 {.center_freq = 5580, .hw_value = 116, },
1112 {.center_freq = 5600, .hw_value = 120, },
1113 {.center_freq = 5620, .hw_value = 124, },
1114 {.center_freq = 5640, .hw_value = 128, },
1115 {.center_freq = 5660, .hw_value = 132, },
1116 {.center_freq = 5680, .hw_value = 136, },
1117 {.center_freq = 5700, .hw_value = 140, },
1118 {.center_freq = 5745, .hw_value = 149, },
1119 {.center_freq = 5765, .hw_value = 153, },
1120 {.center_freq = 5785, .hw_value = 157, },
1121 {.center_freq = 5805, .hw_value = 161, },
1122 {.center_freq = 5825, .hw_value = 165, },
1123 };
1124
1125 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1126 .channels = mwifiex_channels_5ghz,
1127 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1128 .bitrates = mwifiex_rates + 4,
1129 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1130 };
1131
1132
1133 /* Supported crypto cipher suits to be advertised to cfg80211 */
1134 static const u32 mwifiex_cipher_suites[] = {
1135 WLAN_CIPHER_SUITE_WEP40,
1136 WLAN_CIPHER_SUITE_WEP104,
1137 WLAN_CIPHER_SUITE_TKIP,
1138 WLAN_CIPHER_SUITE_CCMP,
1139 WLAN_CIPHER_SUITE_AES_CMAC,
1140 };
1141
1142 /* Supported mgmt frame types to be advertised to cfg80211 */
1143 static const struct ieee80211_txrx_stypes
1144 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1145 [NL80211_IFTYPE_STATION] = {
1146 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1147 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1148 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1149 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1150 },
1151 [NL80211_IFTYPE_AP] = {
1152 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1153 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1154 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1155 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1156 },
1157 [NL80211_IFTYPE_P2P_CLIENT] = {
1158 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1159 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1160 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1161 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1162 },
1163 [NL80211_IFTYPE_P2P_GO] = {
1164 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1165 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1166 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1167 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1168 },
1169 };
1170
1171 /*
1172 * CFG802.11 operation handler for setting bit rates.
1173 *
1174 * Function configures data rates to firmware using bitrate mask
1175 * provided by cfg80211.
1176 */
1177 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1178 struct net_device *dev,
1179 const u8 *peer,
1180 const struct cfg80211_bitrate_mask *mask)
1181 {
1182 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1183 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1184 enum ieee80211_band band;
1185 struct mwifiex_adapter *adapter = priv->adapter;
1186
1187 if (!priv->media_connected) {
1188 dev_err(adapter->dev,
1189 "Can not set Tx data rate in disconnected state\n");
1190 return -EINVAL;
1191 }
1192
1193 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1194
1195 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1196
1197 /* Fill HR/DSSS rates. */
1198 if (band == IEEE80211_BAND_2GHZ)
1199 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1200
1201 /* Fill OFDM rates */
1202 if (band == IEEE80211_BAND_2GHZ)
1203 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1204 else
1205 bitmap_rates[1] = mask->control[band].legacy;
1206
1207 /* Fill HT MCS rates */
1208 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1209 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1210 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1211
1212 /* Fill VHT MCS rates */
1213 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1214 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1215 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1216 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1217 }
1218
1219 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1220 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1221 }
1222
1223 /*
1224 * CFG802.11 operation handler for connection quality monitoring.
1225 *
1226 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1227 * events to FW.
1228 */
1229 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1230 struct net_device *dev,
1231 s32 rssi_thold, u32 rssi_hyst)
1232 {
1233 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1234 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1235
1236 priv->cqm_rssi_thold = rssi_thold;
1237 priv->cqm_rssi_hyst = rssi_hyst;
1238
1239 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1240 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1241
1242 /* Subscribe/unsubscribe low and high rssi events */
1243 if (rssi_thold && rssi_hyst) {
1244 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1245 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1246 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1247 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1248 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1249 return mwifiex_send_cmd(priv,
1250 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1251 0, 0, &subsc_evt, true);
1252 } else {
1253 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1254 return mwifiex_send_cmd(priv,
1255 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1256 0, 0, &subsc_evt, true);
1257 }
1258
1259 return 0;
1260 }
1261
1262 /* cfg80211 operation handler for change_beacon.
1263 * Function retrieves and sets modified management IEs to FW.
1264 */
1265 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1266 struct net_device *dev,
1267 struct cfg80211_beacon_data *data)
1268 {
1269 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1270
1271 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1272 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1273 return -EINVAL;
1274 }
1275
1276 if (!priv->bss_started) {
1277 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1278 return -EINVAL;
1279 }
1280
1281 if (mwifiex_set_mgmt_ies(priv, data)) {
1282 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1283 return -EFAULT;
1284 }
1285
1286 return 0;
1287 }
1288
1289 /* cfg80211 operation handler for del_station.
1290 * Function deauthenticates station which value is provided in mac parameter.
1291 * If mac is NULL/broadcast, all stations in associated station list are
1292 * deauthenticated. If bss is not started or there are no stations in
1293 * associated stations list, no action is taken.
1294 */
1295 static int
1296 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1297 struct station_del_parameters *params)
1298 {
1299 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1300 struct mwifiex_sta_node *sta_node;
1301 u8 deauth_mac[ETH_ALEN];
1302 unsigned long flags;
1303
1304 if (list_empty(&priv->sta_list) || !priv->bss_started)
1305 return 0;
1306
1307 if (!params->mac || is_broadcast_ether_addr(params->mac))
1308 return 0;
1309
1310 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1311
1312 memset(deauth_mac, 0, ETH_ALEN);
1313
1314 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1315 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1316 if (sta_node)
1317 ether_addr_copy(deauth_mac, params->mac);
1318 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1319
1320 if (is_valid_ether_addr(deauth_mac)) {
1321 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1322 HostCmd_ACT_GEN_SET, 0,
1323 deauth_mac, true))
1324 return -1;
1325 }
1326
1327 return 0;
1328 }
1329
1330 static int
1331 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1332 {
1333 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1334 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1335 MWIFIEX_BSS_ROLE_ANY);
1336 struct mwifiex_ds_ant_cfg ant_cfg;
1337
1338 if (!tx_ant || !rx_ant)
1339 return -EOPNOTSUPP;
1340
1341 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1342 /* Not a MIMO chip. User should provide specific antenna number
1343 * for Tx/Rx path or enable all antennas for diversity
1344 */
1345 if (tx_ant != rx_ant)
1346 return -EOPNOTSUPP;
1347
1348 if ((tx_ant & (tx_ant - 1)) &&
1349 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1350 return -EOPNOTSUPP;
1351
1352 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1353 (priv->adapter->number_of_antenna > 1)) {
1354 tx_ant = RF_ANTENNA_AUTO;
1355 rx_ant = RF_ANTENNA_AUTO;
1356 }
1357 } else {
1358 struct ieee80211_sta_ht_cap *ht_info;
1359 int rx_mcs_supp;
1360 enum ieee80211_band band;
1361
1362 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1363 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1364 if (adapter->is_hw_11ac_capable)
1365 adapter->usr_dot_11ac_mcs_support =
1366 MWIFIEX_11AC_MCS_MAP_1X1;
1367 } else {
1368 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1369 if (adapter->is_hw_11ac_capable)
1370 adapter->usr_dot_11ac_mcs_support =
1371 MWIFIEX_11AC_MCS_MAP_2X2;
1372 }
1373
1374 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1375 if (!adapter->wiphy->bands[band])
1376 continue;
1377
1378 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1379 rx_mcs_supp =
1380 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1381 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1382 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1383 }
1384 }
1385
1386 ant_cfg.tx_ant = tx_ant;
1387 ant_cfg.rx_ant = rx_ant;
1388
1389 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1390 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1391 }
1392
1393 /* cfg80211 operation handler for stop ap.
1394 * Function stops BSS running at uAP interface.
1395 */
1396 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1397 {
1398 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1399
1400 if (mwifiex_del_mgmt_ies(priv))
1401 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1402
1403 priv->ap_11n_enabled = 0;
1404
1405 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1406 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1407 wiphy_err(wiphy, "Failed to stop the BSS\n");
1408 return -1;
1409 }
1410
1411 return 0;
1412 }
1413
1414 /* cfg80211 operation handler for start_ap.
1415 * Function sets beacon period, DTIM period, SSID and security into
1416 * AP config structure.
1417 * AP is configured with these settings and BSS is started.
1418 */
1419 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1420 struct net_device *dev,
1421 struct cfg80211_ap_settings *params)
1422 {
1423 struct mwifiex_uap_bss_param *bss_cfg;
1424 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1425 u8 config_bands = 0;
1426
1427 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1428 return -1;
1429 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1430 return -1;
1431
1432 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1433 if (!bss_cfg)
1434 return -ENOMEM;
1435
1436 mwifiex_set_sys_config_invalid_data(bss_cfg);
1437
1438 if (params->beacon_interval)
1439 bss_cfg->beacon_period = params->beacon_interval;
1440 if (params->dtim_period)
1441 bss_cfg->dtim_period = params->dtim_period;
1442
1443 if (params->ssid && params->ssid_len) {
1444 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1445 bss_cfg->ssid.ssid_len = params->ssid_len;
1446 }
1447
1448 switch (params->hidden_ssid) {
1449 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1450 bss_cfg->bcast_ssid_ctl = 1;
1451 break;
1452 case NL80211_HIDDEN_SSID_ZERO_LEN:
1453 bss_cfg->bcast_ssid_ctl = 0;
1454 break;
1455 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1456 /* firmware doesn't support this type of hidden SSID */
1457 default:
1458 kfree(bss_cfg);
1459 return -EINVAL;
1460 }
1461
1462 bss_cfg->channel = ieee80211_frequency_to_channel(
1463 params->chandef.chan->center_freq);
1464
1465 /* Set appropriate bands */
1466 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1467 bss_cfg->band_cfg = BAND_CONFIG_BG;
1468 config_bands = BAND_B | BAND_G;
1469
1470 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1471 config_bands |= BAND_GN;
1472 } else {
1473 bss_cfg->band_cfg = BAND_CONFIG_A;
1474 config_bands = BAND_A;
1475
1476 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1477 config_bands |= BAND_AN;
1478
1479 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1480 config_bands |= BAND_AAC;
1481 }
1482
1483 if (!((config_bands | priv->adapter->fw_bands) &
1484 ~priv->adapter->fw_bands))
1485 priv->adapter->config_bands = config_bands;
1486
1487 mwifiex_set_uap_rates(bss_cfg, params);
1488 mwifiex_send_domain_info_cmd_fw(wiphy);
1489
1490 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1491 kfree(bss_cfg);
1492 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1493 return -1;
1494 }
1495
1496 mwifiex_set_ht_params(priv, bss_cfg, params);
1497
1498 if (priv->adapter->is_hw_11ac_capable) {
1499 mwifiex_set_vht_params(priv, bss_cfg, params);
1500 mwifiex_set_vht_width(priv, params->chandef.width,
1501 priv->ap_11ac_enabled);
1502 }
1503
1504 if (priv->ap_11ac_enabled)
1505 mwifiex_set_11ac_ba_params(priv);
1506 else
1507 mwifiex_set_ba_params(priv);
1508
1509 mwifiex_set_wmm_params(priv, bss_cfg, params);
1510
1511 if (params->inactivity_timeout > 0) {
1512 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1513 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1514 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1515 }
1516
1517 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1518 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1519 wiphy_err(wiphy, "Failed to stop the BSS\n");
1520 kfree(bss_cfg);
1521 return -1;
1522 }
1523
1524 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1525 HostCmd_ACT_GEN_SET,
1526 UAP_BSS_PARAMS_I, bss_cfg, false)) {
1527 wiphy_err(wiphy, "Failed to set the SSID\n");
1528 kfree(bss_cfg);
1529 return -1;
1530 }
1531
1532 kfree(bss_cfg);
1533
1534 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1535 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1536 wiphy_err(wiphy, "Failed to start the BSS\n");
1537 return -1;
1538 }
1539
1540 if (priv->sec_info.wep_enabled)
1541 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1542 else
1543 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1544
1545 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1546 HostCmd_ACT_GEN_SET, 0,
1547 &priv->curr_pkt_filter, true))
1548 return -1;
1549
1550 return 0;
1551 }
1552
1553 /*
1554 * CFG802.11 operation handler for disconnection request.
1555 *
1556 * This function does not work when there is already a disconnection
1557 * procedure going on.
1558 */
1559 static int
1560 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1561 u16 reason_code)
1562 {
1563 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1564
1565 if (mwifiex_deauthenticate(priv, NULL))
1566 return -EFAULT;
1567
1568 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1569 " reason code %d\n", priv->cfg_bssid, reason_code);
1570
1571 memset(priv->cfg_bssid, 0, ETH_ALEN);
1572 priv->hs2_enabled = false;
1573
1574 return 0;
1575 }
1576
1577 /*
1578 * This function informs the CFG802.11 subsystem of a new IBSS.
1579 *
1580 * The following information are sent to the CFG802.11 subsystem
1581 * to register the new IBSS. If we do not register the new IBSS,
1582 * a kernel panic will result.
1583 * - SSID
1584 * - SSID length
1585 * - BSSID
1586 * - Channel
1587 */
1588 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1589 {
1590 struct ieee80211_channel *chan;
1591 struct mwifiex_bss_info bss_info;
1592 struct cfg80211_bss *bss;
1593 int ie_len;
1594 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1595 enum ieee80211_band band;
1596
1597 if (mwifiex_get_bss_info(priv, &bss_info))
1598 return -1;
1599
1600 ie_buf[0] = WLAN_EID_SSID;
1601 ie_buf[1] = bss_info.ssid.ssid_len;
1602
1603 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1604 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1605 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1606
1607 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1608 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1609 ieee80211_channel_to_frequency(bss_info.bss_chan,
1610 band));
1611
1612 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1613 CFG80211_BSS_FTYPE_UNKNOWN,
1614 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1615 0, ie_buf, ie_len, 0, GFP_KERNEL);
1616 cfg80211_put_bss(priv->wdev->wiphy, bss);
1617 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1618
1619 return 0;
1620 }
1621
1622 /*
1623 * This function connects with a BSS.
1624 *
1625 * This function handles both Infra and Ad-Hoc modes. It also performs
1626 * validity checking on the provided parameters, disconnects from the
1627 * current BSS (if any), sets up the association/scan parameters,
1628 * including security settings, and performs specific SSID scan before
1629 * trying to connect.
1630 *
1631 * For Infra mode, the function returns failure if the specified SSID
1632 * is not found in scan table. However, for Ad-Hoc mode, it can create
1633 * the IBSS if it does not exist. On successful completion in either case,
1634 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1635 */
1636 static int
1637 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1638 const u8 *ssid, const u8 *bssid, int mode,
1639 struct ieee80211_channel *channel,
1640 struct cfg80211_connect_params *sme, bool privacy)
1641 {
1642 struct cfg80211_ssid req_ssid;
1643 int ret, auth_type = 0;
1644 struct cfg80211_bss *bss = NULL;
1645 u8 is_scanning_required = 0;
1646
1647 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1648
1649 req_ssid.ssid_len = ssid_len;
1650 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1651 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1652 return -EINVAL;
1653 }
1654
1655 memcpy(req_ssid.ssid, ssid, ssid_len);
1656 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1657 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1658 return -EINVAL;
1659 }
1660
1661 /* As this is new association, clear locally stored
1662 * keys and security related flags */
1663 priv->sec_info.wpa_enabled = false;
1664 priv->sec_info.wpa2_enabled = false;
1665 priv->wep_key_curr_index = 0;
1666 priv->sec_info.encryption_mode = 0;
1667 priv->sec_info.is_authtype_auto = 0;
1668 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1669
1670 if (mode == NL80211_IFTYPE_ADHOC) {
1671 /* "privacy" is set only for ad-hoc mode */
1672 if (privacy) {
1673 /*
1674 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1675 * the firmware can find a matching network from the
1676 * scan. The cfg80211 does not give us the encryption
1677 * mode at this stage so just setting it to WEP here.
1678 */
1679 priv->sec_info.encryption_mode =
1680 WLAN_CIPHER_SUITE_WEP104;
1681 priv->sec_info.authentication_mode =
1682 NL80211_AUTHTYPE_OPEN_SYSTEM;
1683 }
1684
1685 goto done;
1686 }
1687
1688 /* Now handle infra mode. "sme" is valid for infra mode only */
1689 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1690 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1691 priv->sec_info.is_authtype_auto = 1;
1692 } else {
1693 auth_type = sme->auth_type;
1694 }
1695
1696 if (sme->crypto.n_ciphers_pairwise) {
1697 priv->sec_info.encryption_mode =
1698 sme->crypto.ciphers_pairwise[0];
1699 priv->sec_info.authentication_mode = auth_type;
1700 }
1701
1702 if (sme->crypto.cipher_group) {
1703 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1704 priv->sec_info.authentication_mode = auth_type;
1705 }
1706 if (sme->ie)
1707 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1708
1709 if (sme->key) {
1710 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1711 dev_dbg(priv->adapter->dev,
1712 "info: setting wep encryption"
1713 " with key len %d\n", sme->key_len);
1714 priv->wep_key_curr_index = sme->key_idx;
1715 ret = mwifiex_set_encode(priv, NULL, sme->key,
1716 sme->key_len, sme->key_idx,
1717 NULL, 0);
1718 }
1719 }
1720 done:
1721 /*
1722 * Scan entries are valid for some time (15 sec). So we can save one
1723 * active scan time if we just try cfg80211_get_bss first. If it fails
1724 * then request scan and cfg80211_get_bss() again for final output.
1725 */
1726 while (1) {
1727 if (is_scanning_required) {
1728 /* Do specific SSID scanning */
1729 if (mwifiex_request_scan(priv, &req_ssid)) {
1730 dev_err(priv->adapter->dev, "scan error\n");
1731 return -EFAULT;
1732 }
1733 }
1734
1735 /* Find the BSS we want using available scan results */
1736 if (mode == NL80211_IFTYPE_ADHOC)
1737 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1738 bssid, ssid, ssid_len,
1739 WLAN_CAPABILITY_IBSS,
1740 WLAN_CAPABILITY_IBSS);
1741 else
1742 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1743 bssid, ssid, ssid_len,
1744 WLAN_CAPABILITY_ESS,
1745 WLAN_CAPABILITY_ESS);
1746
1747 if (!bss) {
1748 if (is_scanning_required) {
1749 dev_warn(priv->adapter->dev,
1750 "assoc: requested bss not found in scan results\n");
1751 break;
1752 }
1753 is_scanning_required = 1;
1754 } else {
1755 dev_dbg(priv->adapter->dev,
1756 "info: trying to associate to '%s' bssid %pM\n",
1757 (char *) req_ssid.ssid, bss->bssid);
1758 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1759 break;
1760 }
1761 }
1762
1763 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1764 if (ret)
1765 return ret;
1766
1767 if (mode == NL80211_IFTYPE_ADHOC) {
1768 /* Inform the BSS information to kernel, otherwise
1769 * kernel will give a panic after successful assoc */
1770 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1771 return -EFAULT;
1772 }
1773
1774 return ret;
1775 }
1776
1777 /*
1778 * CFG802.11 operation handler for association request.
1779 *
1780 * This function does not work when the current mode is set to Ad-Hoc, or
1781 * when there is already an association procedure going on. The given BSS
1782 * information is used to associate.
1783 */
1784 static int
1785 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1786 struct cfg80211_connect_params *sme)
1787 {
1788 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1789 int ret;
1790
1791 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1792 wiphy_err(wiphy,
1793 "%s: reject infra assoc request in non-STA role\n",
1794 dev->name);
1795 return -EINVAL;
1796 }
1797
1798 if (priv->wdev && priv->wdev->current_bss) {
1799 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1800 return -EALREADY;
1801 }
1802
1803 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1804 (char *) sme->ssid, sme->bssid);
1805
1806 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1807 priv->bss_mode, sme->channel, sme, 0);
1808 if (!ret) {
1809 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1810 NULL, 0, WLAN_STATUS_SUCCESS,
1811 GFP_KERNEL);
1812 dev_dbg(priv->adapter->dev,
1813 "info: associated to bssid %pM successfully\n",
1814 priv->cfg_bssid);
1815 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1816 priv->adapter->auto_tdls &&
1817 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1818 mwifiex_setup_auto_tdls_timer(priv);
1819 } else {
1820 dev_dbg(priv->adapter->dev,
1821 "info: association to bssid %pM failed\n",
1822 priv->cfg_bssid);
1823 memset(priv->cfg_bssid, 0, ETH_ALEN);
1824
1825 if (ret > 0)
1826 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1827 NULL, 0, NULL, 0, ret,
1828 GFP_KERNEL);
1829 else
1830 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1831 NULL, 0, NULL, 0,
1832 WLAN_STATUS_UNSPECIFIED_FAILURE,
1833 GFP_KERNEL);
1834 }
1835
1836 return 0;
1837 }
1838
1839 /*
1840 * This function sets following parameters for ibss network.
1841 * - channel
1842 * - start band
1843 * - 11n flag
1844 * - secondary channel offset
1845 */
1846 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1847 struct cfg80211_ibss_params *params)
1848 {
1849 struct wiphy *wiphy = priv->wdev->wiphy;
1850 struct mwifiex_adapter *adapter = priv->adapter;
1851 int index = 0, i;
1852 u8 config_bands = 0;
1853
1854 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1855 if (!params->basic_rates) {
1856 config_bands = BAND_B | BAND_G;
1857 } else {
1858 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1859 /*
1860 * Rates below 6 Mbps in the table are CCK
1861 * rates; 802.11b and from 6 they are OFDM;
1862 * 802.11G
1863 */
1864 if (mwifiex_rates[i].bitrate == 60) {
1865 index = 1 << i;
1866 break;
1867 }
1868 }
1869
1870 if (params->basic_rates < index) {
1871 config_bands = BAND_B;
1872 } else {
1873 config_bands = BAND_G;
1874 if (params->basic_rates % index)
1875 config_bands |= BAND_B;
1876 }
1877 }
1878
1879 if (cfg80211_get_chandef_type(&params->chandef) !=
1880 NL80211_CHAN_NO_HT)
1881 config_bands |= BAND_G | BAND_GN;
1882 } else {
1883 if (cfg80211_get_chandef_type(&params->chandef) ==
1884 NL80211_CHAN_NO_HT)
1885 config_bands = BAND_A;
1886 else
1887 config_bands = BAND_AN | BAND_A;
1888 }
1889
1890 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1891 adapter->config_bands = config_bands;
1892 adapter->adhoc_start_band = config_bands;
1893
1894 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1895 adapter->adhoc_11n_enabled = true;
1896 else
1897 adapter->adhoc_11n_enabled = false;
1898 }
1899
1900 adapter->sec_chan_offset =
1901 mwifiex_chan_type_to_sec_chan_offset(
1902 cfg80211_get_chandef_type(&params->chandef));
1903 priv->adhoc_channel = ieee80211_frequency_to_channel(
1904 params->chandef.chan->center_freq);
1905
1906 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1907 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1908
1909 return 0;
1910 }
1911
1912 /*
1913 * CFG802.11 operation handler to join an IBSS.
1914 *
1915 * This function does not work in any mode other than Ad-Hoc, or if
1916 * a join operation is already in progress.
1917 */
1918 static int
1919 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1920 struct cfg80211_ibss_params *params)
1921 {
1922 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1923 int ret = 0;
1924
1925 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1926 wiphy_err(wiphy, "request to join ibss received "
1927 "when station is not in ibss mode\n");
1928 goto done;
1929 }
1930
1931 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1932 (char *) params->ssid, params->bssid);
1933
1934 mwifiex_set_ibss_params(priv, params);
1935
1936 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1937 params->bssid, priv->bss_mode,
1938 params->chandef.chan, NULL,
1939 params->privacy);
1940 done:
1941 if (!ret) {
1942 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1943 params->chandef.chan, GFP_KERNEL);
1944 dev_dbg(priv->adapter->dev,
1945 "info: joined/created adhoc network with bssid"
1946 " %pM successfully\n", priv->cfg_bssid);
1947 } else {
1948 dev_dbg(priv->adapter->dev,
1949 "info: failed creating/joining adhoc network\n");
1950 }
1951
1952 return ret;
1953 }
1954
1955 /*
1956 * CFG802.11 operation handler to leave an IBSS.
1957 *
1958 * This function does not work if a leave operation is
1959 * already in progress.
1960 */
1961 static int
1962 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1963 {
1964 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1965
1966 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1967 priv->cfg_bssid);
1968 if (mwifiex_deauthenticate(priv, NULL))
1969 return -EFAULT;
1970
1971 memset(priv->cfg_bssid, 0, ETH_ALEN);
1972
1973 return 0;
1974 }
1975
1976 /*
1977 * CFG802.11 operation handler for scan request.
1978 *
1979 * This function issues a scan request to the firmware based upon
1980 * the user specified scan configuration. On successfull completion,
1981 * it also informs the results.
1982 */
1983 static int
1984 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1985 struct cfg80211_scan_request *request)
1986 {
1987 struct net_device *dev = request->wdev->netdev;
1988 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1989 int i, offset, ret;
1990 struct ieee80211_channel *chan;
1991 struct ieee_types_header *ie;
1992 struct mwifiex_user_scan_cfg *user_scan_cfg;
1993
1994 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1995
1996 /* Block scan request if scan operation or scan cleanup when interface
1997 * is disabled is in process
1998 */
1999 if (priv->scan_request || priv->scan_aborting) {
2000 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2001 return -EBUSY;
2002 }
2003
2004 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2005 if (!user_scan_cfg)
2006 return -ENOMEM;
2007
2008 priv->scan_request = request;
2009
2010 user_scan_cfg->num_ssids = request->n_ssids;
2011 user_scan_cfg->ssid_list = request->ssids;
2012
2013 if (request->ie && request->ie_len) {
2014 offset = 0;
2015 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2016 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2017 continue;
2018 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2019 ie = (struct ieee_types_header *)(request->ie + offset);
2020 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2021 offset += sizeof(*ie) + ie->len;
2022
2023 if (offset >= request->ie_len)
2024 break;
2025 }
2026 }
2027
2028 for (i = 0; i < min_t(u32, request->n_channels,
2029 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2030 chan = request->channels[i];
2031 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2032 user_scan_cfg->chan_list[i].radio_type = chan->band;
2033
2034 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2035 user_scan_cfg->chan_list[i].scan_type =
2036 MWIFIEX_SCAN_TYPE_PASSIVE;
2037 else
2038 user_scan_cfg->chan_list[i].scan_type =
2039 MWIFIEX_SCAN_TYPE_ACTIVE;
2040
2041 user_scan_cfg->chan_list[i].scan_time = 0;
2042 }
2043
2044 if (priv->adapter->scan_chan_gap_enabled &&
2045 mwifiex_is_any_intf_active(priv))
2046 user_scan_cfg->scan_chan_gap =
2047 priv->adapter->scan_chan_gap_time;
2048
2049 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2050 kfree(user_scan_cfg);
2051 if (ret) {
2052 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2053 priv->scan_aborting = false;
2054 priv->scan_request = NULL;
2055 return ret;
2056 }
2057
2058 if (request->ie && request->ie_len) {
2059 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2060 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2061 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2062 memset(&priv->vs_ie[i].ie, 0,
2063 MWIFIEX_MAX_VSIE_LEN);
2064 }
2065 }
2066 }
2067 return 0;
2068 }
2069
2070 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2071 struct mwifiex_private *priv)
2072 {
2073 struct mwifiex_adapter *adapter = priv->adapter;
2074
2075 vht_info->vht_supported = true;
2076
2077 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2078 /* Update MCS support for VHT */
2079 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2080 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2081 vht_info->vht_mcs.rx_highest = 0;
2082 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2083 adapter->hw_dot_11ac_mcs_support >> 16);
2084 vht_info->vht_mcs.tx_highest = 0;
2085 }
2086
2087 /*
2088 * This function sets up the CFG802.11 specific HT capability fields
2089 * with default values.
2090 *
2091 * The following default values are set -
2092 * - HT Supported = True
2093 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2094 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2095 * - HT Capabilities supported by firmware
2096 * - MCS information, Rx mask = 0xff
2097 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2098 */
2099 static void
2100 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2101 struct mwifiex_private *priv)
2102 {
2103 int rx_mcs_supp;
2104 struct ieee80211_mcs_info mcs_set;
2105 u8 *mcs = (u8 *)&mcs_set;
2106 struct mwifiex_adapter *adapter = priv->adapter;
2107
2108 ht_info->ht_supported = true;
2109 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2110 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2111
2112 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2113
2114 /* Fill HT capability information */
2115 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2116 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2117 else
2118 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2119
2120 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2121 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2122 else
2123 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2124
2125 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2126 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2127 else
2128 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2129
2130 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2131 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2132 else
2133 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2134
2135 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2136 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2137 else
2138 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2139
2140 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2141 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2142 else
2143 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2144
2145 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2146 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2147 else
2148 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2149
2150 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2151 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2152 else
2153 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2154
2155 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2156 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2157
2158 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2159 /* Set MCS for 1x1/2x2 */
2160 memset(mcs, 0xff, rx_mcs_supp);
2161 /* Clear all the other values */
2162 memset(&mcs[rx_mcs_supp], 0,
2163 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2164 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2165 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2166 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2167 SETHT_MCS32(mcs_set.rx_mask);
2168
2169 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2170
2171 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2172 }
2173
2174 /*
2175 * create a new virtual interface with the given name
2176 */
2177 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2178 const char *name,
2179 enum nl80211_iftype type,
2180 u32 *flags,
2181 struct vif_params *params)
2182 {
2183 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2184 struct mwifiex_private *priv;
2185 struct net_device *dev;
2186 void *mdev_priv;
2187 struct wireless_dev *wdev;
2188
2189 if (!adapter)
2190 return ERR_PTR(-EFAULT);
2191
2192 switch (type) {
2193 case NL80211_IFTYPE_UNSPECIFIED:
2194 case NL80211_IFTYPE_STATION:
2195 case NL80211_IFTYPE_ADHOC:
2196 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2197 if (priv->bss_mode) {
2198 wiphy_err(wiphy,
2199 "cannot create multiple sta/adhoc ifaces\n");
2200 return ERR_PTR(-EINVAL);
2201 }
2202
2203 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2204 if (!wdev)
2205 return ERR_PTR(-ENOMEM);
2206
2207 wdev->wiphy = wiphy;
2208 priv->wdev = wdev;
2209 wdev->iftype = NL80211_IFTYPE_STATION;
2210
2211 if (type == NL80211_IFTYPE_UNSPECIFIED)
2212 priv->bss_mode = NL80211_IFTYPE_STATION;
2213 else
2214 priv->bss_mode = type;
2215
2216 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2217 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2218 priv->bss_priority = 0;
2219 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2220 priv->bss_num = 0;
2221
2222 break;
2223 case NL80211_IFTYPE_AP:
2224 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2225
2226 if (priv->bss_mode) {
2227 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2228 return ERR_PTR(-EINVAL);
2229 }
2230
2231 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2232 if (!wdev)
2233 return ERR_PTR(-ENOMEM);
2234
2235 priv->wdev = wdev;
2236 wdev->wiphy = wiphy;
2237 wdev->iftype = NL80211_IFTYPE_AP;
2238
2239 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2240 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2241 priv->bss_priority = 0;
2242 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2243 priv->bss_started = 0;
2244 priv->bss_num = 0;
2245 priv->bss_mode = type;
2246
2247 break;
2248 case NL80211_IFTYPE_P2P_CLIENT:
2249 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2250
2251 if (priv->bss_mode) {
2252 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2253 return ERR_PTR(-EINVAL);
2254 }
2255
2256 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2257 if (!wdev)
2258 return ERR_PTR(-ENOMEM);
2259
2260 priv->wdev = wdev;
2261 wdev->wiphy = wiphy;
2262
2263 /* At start-up, wpa_supplicant tries to change the interface
2264 * to NL80211_IFTYPE_STATION if it is not managed mode.
2265 */
2266 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2267 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2268
2269 /* Setting bss_type to P2P tells firmware that this interface
2270 * is receiving P2P peers found during find phase and doing
2271 * action frame handshake.
2272 */
2273 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2274
2275 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2276 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2277 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2278 priv->bss_started = 0;
2279 priv->bss_num = 0;
2280
2281 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2282 wdev = ERR_PTR(-EFAULT);
2283 goto done;
2284 }
2285
2286 break;
2287 default:
2288 wiphy_err(wiphy, "type not supported\n");
2289 return ERR_PTR(-EINVAL);
2290 }
2291
2292 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2293 NET_NAME_UNKNOWN, ether_setup,
2294 IEEE80211_NUM_ACS, 1);
2295 if (!dev) {
2296 wiphy_err(wiphy, "no memory available for netdevice\n");
2297 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2298 wdev = ERR_PTR(-ENOMEM);
2299 goto done;
2300 }
2301
2302 mwifiex_init_priv_params(priv, dev);
2303 priv->netdev = dev;
2304
2305 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2306 if (adapter->is_hw_11ac_capable)
2307 mwifiex_setup_vht_caps(
2308 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2309
2310 if (adapter->config_bands & BAND_A)
2311 mwifiex_setup_ht_caps(
2312 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2313
2314 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2315 mwifiex_setup_vht_caps(
2316 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2317
2318 dev_net_set(dev, wiphy_net(wiphy));
2319 dev->ieee80211_ptr = priv->wdev;
2320 dev->ieee80211_ptr->iftype = priv->bss_mode;
2321 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2322 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2323
2324 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2325 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2326 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2327 dev->ethtool_ops = &mwifiex_ethtool_ops;
2328
2329 mdev_priv = netdev_priv(dev);
2330 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2331
2332 SET_NETDEV_DEV(dev, adapter->dev);
2333
2334 /* Register network device */
2335 if (register_netdevice(dev)) {
2336 wiphy_err(wiphy, "cannot register virtual network device\n");
2337 free_netdev(dev);
2338 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2339 priv->netdev = NULL;
2340 wdev = ERR_PTR(-EFAULT);
2341 goto done;
2342 }
2343
2344 sema_init(&priv->async_sem, 1);
2345
2346 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2347
2348 #ifdef CONFIG_DEBUG_FS
2349 mwifiex_dev_debugfs_init(priv);
2350 #endif
2351
2352 done:
2353 if (IS_ERR(wdev)) {
2354 kfree(priv->wdev);
2355 priv->wdev = NULL;
2356 }
2357
2358 return wdev;
2359 }
2360 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2361
2362 /*
2363 * del_virtual_intf: remove the virtual interface determined by dev
2364 */
2365 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2366 {
2367 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2368
2369 #ifdef CONFIG_DEBUG_FS
2370 mwifiex_dev_debugfs_remove(priv);
2371 #endif
2372
2373 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2374
2375 if (netif_carrier_ok(priv->netdev))
2376 netif_carrier_off(priv->netdev);
2377
2378 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2379 unregister_netdevice(wdev->netdev);
2380
2381 /* Clear the priv in adapter */
2382 priv->netdev->ieee80211_ptr = NULL;
2383 priv->netdev = NULL;
2384 kfree(wdev);
2385 priv->wdev = NULL;
2386
2387 priv->media_connected = false;
2388
2389 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2390
2391 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2392 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2393 kfree(priv->hist_data);
2394
2395 return 0;
2396 }
2397 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2398
2399 static bool
2400 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2401 u8 max_byte_seq)
2402 {
2403 int j, k, valid_byte_cnt = 0;
2404 bool dont_care_byte = false;
2405
2406 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2407 for (k = 0; k < 8; k++) {
2408 if (pat->mask[j] & 1 << k) {
2409 memcpy(byte_seq + valid_byte_cnt,
2410 &pat->pattern[j * 8 + k], 1);
2411 valid_byte_cnt++;
2412 if (dont_care_byte)
2413 return false;
2414 } else {
2415 if (valid_byte_cnt)
2416 dont_care_byte = true;
2417 }
2418
2419 if (valid_byte_cnt > max_byte_seq)
2420 return false;
2421 }
2422 }
2423
2424 byte_seq[max_byte_seq] = valid_byte_cnt;
2425
2426 return true;
2427 }
2428
2429 #ifdef CONFIG_PM
2430 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
2431 struct cfg80211_wowlan *wowlan)
2432 {
2433 int i, filt_num = 0, ret = 0;
2434 bool first_pat = true;
2435 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2436 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2437 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2438 struct mwifiex_ds_mef_cfg mef_cfg;
2439 struct mwifiex_mef_entry *mef_entry;
2440
2441 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2442 if (!mef_entry)
2443 return -ENOMEM;
2444
2445 memset(&mef_cfg, 0, sizeof(mef_cfg));
2446 mef_cfg.num_entries = 1;
2447 mef_cfg.mef_entry = mef_entry;
2448 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2449 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2450
2451 for (i = 0; i < wowlan->n_patterns; i++) {
2452 memset(byte_seq, 0, sizeof(byte_seq));
2453 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2454 byte_seq,
2455 MWIFIEX_MEF_MAX_BYTESEQ)) {
2456 dev_err(priv->adapter->dev, "Pattern not supported\n");
2457 kfree(mef_entry);
2458 return -EOPNOTSUPP;
2459 }
2460
2461 if (!wowlan->patterns[i].pkt_offset) {
2462 if (!(byte_seq[0] & 0x01) &&
2463 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2464 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2465 continue;
2466 } else if (is_broadcast_ether_addr(byte_seq)) {
2467 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2468 continue;
2469 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2470 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2471 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2472 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2473 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2474 continue;
2475 }
2476 }
2477
2478 mef_entry->filter[filt_num].repeat = 1;
2479 mef_entry->filter[filt_num].offset =
2480 wowlan->patterns[i].pkt_offset;
2481 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2482 sizeof(byte_seq));
2483 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2484
2485 if (first_pat)
2486 first_pat = false;
2487 else
2488 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2489
2490 filt_num++;
2491 }
2492
2493 if (wowlan->magic_pkt) {
2494 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2495 mef_entry->filter[filt_num].repeat = 16;
2496 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2497 ETH_ALEN);
2498 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2499 ETH_ALEN;
2500 mef_entry->filter[filt_num].offset = 28;
2501 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2502 if (filt_num)
2503 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2504
2505 filt_num++;
2506 mef_entry->filter[filt_num].repeat = 16;
2507 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2508 ETH_ALEN);
2509 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2510 ETH_ALEN;
2511 mef_entry->filter[filt_num].offset = 56;
2512 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2513 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2514 }
2515
2516 if (!mef_cfg.criteria)
2517 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2518 MWIFIEX_CRITERIA_UNICAST |
2519 MWIFIEX_CRITERIA_MULTICAST;
2520
2521 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2522 HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2523
2524 kfree(mef_entry);
2525 return ret;
2526 }
2527
2528 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2529 struct cfg80211_wowlan *wowlan)
2530 {
2531 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2532 struct mwifiex_ds_hs_cfg hs_cfg;
2533 int ret = 0;
2534 struct mwifiex_private *priv =
2535 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2536
2537 if (!wowlan) {
2538 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2539 return 0;
2540 }
2541
2542 if (!priv->media_connected) {
2543 dev_warn(adapter->dev,
2544 "Can not configure WOWLAN in disconnected state\n");
2545 return 0;
2546 }
2547
2548 if (wowlan->n_patterns || wowlan->magic_pkt) {
2549 ret = mwifiex_set_mef_filter(priv, wowlan);
2550 if (ret) {
2551 dev_err(adapter->dev, "Failed to set MEF filter\n");
2552 return ret;
2553 }
2554 }
2555
2556 if (wowlan->disconnect) {
2557 memset(&hs_cfg, 0, sizeof(hs_cfg));
2558 hs_cfg.is_invoke_hostcmd = false;
2559 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
2560 hs_cfg.gpio = HS_CFG_GPIO_DEF;
2561 hs_cfg.gap = HS_CFG_GAP_DEF;
2562 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
2563 MWIFIEX_SYNC_CMD, &hs_cfg);
2564 if (ret) {
2565 dev_err(adapter->dev, "Failed to set HS params\n");
2566 return ret;
2567 }
2568 }
2569
2570 return ret;
2571 }
2572
2573 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2574 {
2575 return 0;
2576 }
2577
2578 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2579 bool enabled)
2580 {
2581 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2582
2583 device_set_wakeup_enable(adapter->dev, enabled);
2584 }
2585 #endif
2586
2587 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2588 {
2589 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2590 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2591 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2592
2593 if ((byte_seq[0] & 0x01) &&
2594 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2595 return PACKET_TYPE_UNICAST;
2596 else if (!memcmp(byte_seq, bc_mac, 4))
2597 return PACKET_TYPE_BROADCAST;
2598 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2599 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2600 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2601 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2602 return PACKET_TYPE_MULTICAST;
2603
2604 return 0;
2605 }
2606
2607 static int
2608 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2609 struct cfg80211_coalesce_rules *crule,
2610 struct mwifiex_coalesce_rule *mrule)
2611 {
2612 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2613 struct filt_field_param *param;
2614 int i;
2615
2616 mrule->max_coalescing_delay = crule->delay;
2617
2618 param = mrule->params;
2619
2620 for (i = 0; i < crule->n_patterns; i++) {
2621 memset(byte_seq, 0, sizeof(byte_seq));
2622 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2623 byte_seq,
2624 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2625 dev_err(priv->adapter->dev, "Pattern not supported\n");
2626 return -EOPNOTSUPP;
2627 }
2628
2629 if (!crule->patterns[i].pkt_offset) {
2630 u8 pkt_type;
2631
2632 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2633 if (pkt_type && mrule->pkt_type) {
2634 dev_err(priv->adapter->dev,
2635 "Multiple packet types not allowed\n");
2636 return -EOPNOTSUPP;
2637 } else if (pkt_type) {
2638 mrule->pkt_type = pkt_type;
2639 continue;
2640 }
2641 }
2642
2643 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2644 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2645 else
2646 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2647
2648 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2649 memcpy(param->operand_byte_stream, byte_seq,
2650 param->operand_len);
2651 param->offset = crule->patterns[i].pkt_offset;
2652 param++;
2653
2654 mrule->num_of_fields++;
2655 }
2656
2657 if (!mrule->pkt_type) {
2658 dev_err(priv->adapter->dev,
2659 "Packet type can not be determined\n");
2660 return -EOPNOTSUPP;
2661 }
2662
2663 return 0;
2664 }
2665
2666 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2667 struct cfg80211_coalesce *coalesce)
2668 {
2669 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2670 int i, ret;
2671 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2672 struct mwifiex_private *priv =
2673 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2674
2675 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2676 if (!coalesce) {
2677 dev_dbg(adapter->dev,
2678 "Disable coalesce and reset all previous rules\n");
2679 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2680 HostCmd_ACT_GEN_SET, 0,
2681 &coalesce_cfg, true);
2682 }
2683
2684 coalesce_cfg.num_of_rules = coalesce->n_rules;
2685 for (i = 0; i < coalesce->n_rules; i++) {
2686 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2687 &coalesce_cfg.rule[i]);
2688 if (ret) {
2689 dev_err(priv->adapter->dev,
2690 "Recheck the patterns provided for rule %d\n",
2691 i + 1);
2692 return ret;
2693 }
2694 }
2695
2696 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2697 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2698 }
2699
2700 /* cfg80211 ops handler for tdls_mgmt.
2701 * Function prepares TDLS action frame packets and forwards them to FW
2702 */
2703 static int
2704 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2705 const u8 *peer, u8 action_code, u8 dialog_token,
2706 u16 status_code, u32 peer_capability,
2707 bool initiator, const u8 *extra_ies,
2708 size_t extra_ies_len)
2709 {
2710 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2711 int ret;
2712
2713 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2714 return -ENOTSUPP;
2715
2716 /* make sure we are in station mode and connected */
2717 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2718 return -ENOTSUPP;
2719
2720 switch (action_code) {
2721 case WLAN_TDLS_SETUP_REQUEST:
2722 dev_dbg(priv->adapter->dev,
2723 "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2724 status_code);
2725 mwifiex_add_auto_tdls_peer(priv, peer);
2726 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2727 dialog_token, status_code,
2728 extra_ies, extra_ies_len);
2729 break;
2730 case WLAN_TDLS_SETUP_RESPONSE:
2731 mwifiex_add_auto_tdls_peer(priv, peer);
2732 dev_dbg(priv->adapter->dev,
2733 "Send TDLS Setup Response to %pM status_code=%d\n",
2734 peer, status_code);
2735 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2736 dialog_token, status_code,
2737 extra_ies, extra_ies_len);
2738 break;
2739 case WLAN_TDLS_SETUP_CONFIRM:
2740 dev_dbg(priv->adapter->dev,
2741 "Send TDLS Confirm to %pM status_code=%d\n", peer,
2742 status_code);
2743 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2744 dialog_token, status_code,
2745 extra_ies, extra_ies_len);
2746 break;
2747 case WLAN_TDLS_TEARDOWN:
2748 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2749 peer);
2750 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2751 dialog_token, status_code,
2752 extra_ies, extra_ies_len);
2753 break;
2754 case WLAN_TDLS_DISCOVERY_REQUEST:
2755 dev_dbg(priv->adapter->dev,
2756 "Send TDLS Discovery Request to %pM\n", peer);
2757 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2758 dialog_token, status_code,
2759 extra_ies, extra_ies_len);
2760 break;
2761 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2762 dev_dbg(priv->adapter->dev,
2763 "Send TDLS Discovery Response to %pM\n", peer);
2764 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2765 dialog_token, status_code,
2766 extra_ies, extra_ies_len);
2767 break;
2768 default:
2769 dev_warn(priv->adapter->dev,
2770 "Unknown TDLS mgmt/action frame %pM\n", peer);
2771 ret = -EINVAL;
2772 break;
2773 }
2774
2775 return ret;
2776 }
2777
2778 static int
2779 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2780 const u8 *peer, enum nl80211_tdls_operation action)
2781 {
2782 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2783
2784 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2785 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2786 return -ENOTSUPP;
2787
2788 /* make sure we are in station mode and connected */
2789 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2790 return -ENOTSUPP;
2791
2792 dev_dbg(priv->adapter->dev,
2793 "TDLS peer=%pM, oper=%d\n", peer, action);
2794
2795 switch (action) {
2796 case NL80211_TDLS_ENABLE_LINK:
2797 action = MWIFIEX_TDLS_ENABLE_LINK;
2798 break;
2799 case NL80211_TDLS_DISABLE_LINK:
2800 action = MWIFIEX_TDLS_DISABLE_LINK;
2801 break;
2802 case NL80211_TDLS_TEARDOWN:
2803 /* shouldn't happen!*/
2804 dev_warn(priv->adapter->dev,
2805 "tdls_oper: teardown from driver not supported\n");
2806 return -EINVAL;
2807 case NL80211_TDLS_SETUP:
2808 /* shouldn't happen!*/
2809 dev_warn(priv->adapter->dev,
2810 "tdls_oper: setup from driver not supported\n");
2811 return -EINVAL;
2812 case NL80211_TDLS_DISCOVERY_REQ:
2813 /* shouldn't happen!*/
2814 dev_warn(priv->adapter->dev,
2815 "tdls_oper: discovery from driver not supported\n");
2816 return -EINVAL;
2817 default:
2818 dev_err(priv->adapter->dev,
2819 "tdls_oper: operation not supported\n");
2820 return -ENOTSUPP;
2821 }
2822
2823 return mwifiex_tdls_oper(priv, peer, action);
2824 }
2825
2826 static int
2827 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2828 const u8 *mac, struct station_parameters *params)
2829 {
2830 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2831
2832 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2833 return -ENOTSUPP;
2834
2835 /* make sure we are in station mode and connected */
2836 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2837 return -ENOTSUPP;
2838
2839 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2840 }
2841
2842 static int
2843 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2844 const u8 *mac,
2845 struct station_parameters *params)
2846 {
2847 int ret;
2848 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2849
2850 /* we support change_station handler only for TDLS peers*/
2851 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2852 return -ENOTSUPP;
2853
2854 /* make sure we are in station mode and connected */
2855 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2856 return -ENOTSUPP;
2857
2858 priv->sta_params = params;
2859
2860 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2861 priv->sta_params = NULL;
2862
2863 return ret;
2864 }
2865
2866 /* station cfg80211 operations */
2867 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2868 .add_virtual_intf = mwifiex_add_virtual_intf,
2869 .del_virtual_intf = mwifiex_del_virtual_intf,
2870 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2871 .scan = mwifiex_cfg80211_scan,
2872 .connect = mwifiex_cfg80211_connect,
2873 .disconnect = mwifiex_cfg80211_disconnect,
2874 .get_station = mwifiex_cfg80211_get_station,
2875 .dump_station = mwifiex_cfg80211_dump_station,
2876 .dump_survey = mwifiex_cfg80211_dump_survey,
2877 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2878 .join_ibss = mwifiex_cfg80211_join_ibss,
2879 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2880 .add_key = mwifiex_cfg80211_add_key,
2881 .del_key = mwifiex_cfg80211_del_key,
2882 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2883 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2884 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2885 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2886 .set_default_key = mwifiex_cfg80211_set_default_key,
2887 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2888 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2889 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2890 .start_ap = mwifiex_cfg80211_start_ap,
2891 .stop_ap = mwifiex_cfg80211_stop_ap,
2892 .change_beacon = mwifiex_cfg80211_change_beacon,
2893 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2894 .set_antenna = mwifiex_cfg80211_set_antenna,
2895 .del_station = mwifiex_cfg80211_del_station,
2896 #ifdef CONFIG_PM
2897 .suspend = mwifiex_cfg80211_suspend,
2898 .resume = mwifiex_cfg80211_resume,
2899 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2900 #endif
2901 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2902 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2903 .tdls_oper = mwifiex_cfg80211_tdls_oper,
2904 .add_station = mwifiex_cfg80211_add_station,
2905 .change_station = mwifiex_cfg80211_change_station,
2906 };
2907
2908 #ifdef CONFIG_PM
2909 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2910 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
2911 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2912 .pattern_min_len = 1,
2913 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2914 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2915 };
2916 #endif
2917
2918 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2919 {
2920 if (!alpha2 || strlen(alpha2) != 2)
2921 return false;
2922
2923 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2924 return true;
2925
2926 return false;
2927 }
2928
2929 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2930 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2931 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2932 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2933 .pattern_min_len = 1,
2934 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2935 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2936 };
2937
2938 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2939 {
2940 u32 n_channels_bg, n_channels_a = 0;
2941
2942 n_channels_bg = mwifiex_band_2ghz.n_channels;
2943
2944 if (adapter->config_bands & BAND_A)
2945 n_channels_a = mwifiex_band_5ghz.n_channels;
2946
2947 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2948 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2949 adapter->num_in_chan_stats);
2950
2951 if (!adapter->chan_stats)
2952 return -ENOMEM;
2953
2954 return 0;
2955 }
2956
2957 /*
2958 * This function registers the device with CFG802.11 subsystem.
2959 *
2960 * The function creates the wireless device/wiphy, populates it with
2961 * default parameters and handler function pointers, and finally
2962 * registers the device.
2963 */
2964
2965 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2966 {
2967 int ret;
2968 void *wdev_priv;
2969 struct wiphy *wiphy;
2970 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2971 u8 *country_code;
2972 u32 thr, retry;
2973
2974 /* create a new wiphy for use with cfg80211 */
2975 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2976 sizeof(struct mwifiex_adapter *));
2977 if (!wiphy) {
2978 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2979 return -ENOMEM;
2980 }
2981 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2982 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2983 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2984 wiphy->max_remain_on_channel_duration = 5000;
2985 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2986 BIT(NL80211_IFTYPE_ADHOC) |
2987 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2988 BIT(NL80211_IFTYPE_P2P_GO) |
2989 BIT(NL80211_IFTYPE_AP);
2990
2991 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2992 if (adapter->config_bands & BAND_A)
2993 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2994 else
2995 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2996
2997 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2998 wiphy->n_iface_combinations = 1;
2999
3000 /* Initialize cipher suits */
3001 wiphy->cipher_suites = mwifiex_cipher_suites;
3002 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3003
3004 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
3005 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3006 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3007 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3008 WIPHY_FLAG_AP_UAPSD |
3009 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
3010
3011 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3012 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3013 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3014
3015 #ifdef CONFIG_PM
3016 wiphy->wowlan = &mwifiex_wowlan_support;
3017 #endif
3018
3019 wiphy->coalesce = &mwifiex_coalesce_support;
3020
3021 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3022 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3023 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3024
3025 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3026 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3027
3028 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3029 NL80211_FEATURE_INACTIVITY_TIMER |
3030 NL80211_FEATURE_NEED_OBSS_SCAN;
3031
3032 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3033 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3034
3035 /* Reserve space for mwifiex specific private data for BSS */
3036 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3037
3038 wiphy->reg_notifier = mwifiex_reg_notifier;
3039
3040 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3041 wdev_priv = wiphy_priv(wiphy);
3042 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3043
3044 set_wiphy_dev(wiphy, priv->adapter->dev);
3045
3046 ret = wiphy_register(wiphy);
3047 if (ret < 0) {
3048 dev_err(adapter->dev,
3049 "%s: wiphy_register failed: %d\n", __func__, ret);
3050 wiphy_free(wiphy);
3051 return ret;
3052 }
3053
3054 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3055 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3056 regulatory_hint(wiphy, reg_alpha2);
3057 } else {
3058 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3059 if (country_code)
3060 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3061 country_code);
3062 }
3063
3064 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3065 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3066 wiphy->frag_threshold = thr;
3067 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3068 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3069 wiphy->rts_threshold = thr;
3070 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3071 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3072 wiphy->retry_short = (u8) retry;
3073 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3074 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3075 wiphy->retry_long = (u8) retry;
3076
3077 adapter->wiphy = wiphy;
3078 return ret;
3079 }
Linux kernel - Deliverables
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