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Merge branch 'for-linus-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mason...
[deliverable/linux.git] / drivers / net / wireless / marvell / 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 #include "11n.h"
23
24 static char *reg_alpha2;
25 module_param(reg_alpha2, charp, 0);
26
27 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
28 {
29 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
30 BIT(NL80211_IFTYPE_P2P_GO) |
31 BIT(NL80211_IFTYPE_P2P_CLIENT) |
32 BIT(NL80211_IFTYPE_AP),
33 },
34 };
35
36 static const struct ieee80211_iface_combination
37 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 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
44 BIT(NL80211_CHAN_WIDTH_20) |
45 BIT(NL80211_CHAN_WIDTH_40),
46 };
47
48 static const struct ieee80211_iface_combination
49 mwifiex_iface_comb_ap_sta_vht = {
50 .limits = mwifiex_ap_sta_limits,
51 .num_different_channels = 1,
52 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
53 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
54 .beacon_int_infra_match = true,
55 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
56 BIT(NL80211_CHAN_WIDTH_20) |
57 BIT(NL80211_CHAN_WIDTH_40) |
58 BIT(NL80211_CHAN_WIDTH_80),
59 };
60
61 static const struct
62 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
63 .limits = mwifiex_ap_sta_limits,
64 .num_different_channels = 2,
65 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
66 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
67 .beacon_int_infra_match = true,
68 };
69
70 /*
71 * This function maps the nl802.11 channel type into driver channel type.
72 *
73 * The mapping is as follows -
74 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
75 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
76 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
77 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
78 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
79 */
80 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
81 {
82 switch (chan_type) {
83 case NL80211_CHAN_NO_HT:
84 case NL80211_CHAN_HT20:
85 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
86 case NL80211_CHAN_HT40PLUS:
87 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
88 case NL80211_CHAN_HT40MINUS:
89 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
90 default:
91 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
92 }
93 }
94
95 /* This function maps IEEE HT secondary channel type to NL80211 channel type
96 */
97 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
98 {
99 switch (second_chan_offset) {
100 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
101 return NL80211_CHAN_HT20;
102 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
103 return NL80211_CHAN_HT40PLUS;
104 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
105 return NL80211_CHAN_HT40MINUS;
106 default:
107 return NL80211_CHAN_HT20;
108 }
109 }
110
111 /*
112 * This function checks whether WEP is set.
113 */
114 static int
115 mwifiex_is_alg_wep(u32 cipher)
116 {
117 switch (cipher) {
118 case WLAN_CIPHER_SUITE_WEP40:
119 case WLAN_CIPHER_SUITE_WEP104:
120 return 1;
121 default:
122 break;
123 }
124
125 return 0;
126 }
127
128 /*
129 * This function retrieves the private structure from kernel wiphy structure.
130 */
131 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
132 {
133 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
134 }
135
136 /*
137 * CFG802.11 operation handler to delete a network key.
138 */
139 static int
140 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
141 u8 key_index, bool pairwise, const u8 *mac_addr)
142 {
143 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
144 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
145 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
146
147 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
148 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
149 return -EFAULT;
150 }
151
152 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
153 return 0;
154 }
155
156 /*
157 * This function forms an skb for management frame.
158 */
159 static int
160 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
161 {
162 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
163 u16 pkt_len;
164 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
165
166 pkt_len = len + ETH_ALEN;
167
168 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
169 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
170 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
171
172 memcpy(skb_push(skb, sizeof(tx_control)),
173 &tx_control, sizeof(tx_control));
174
175 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
176
177 /* Add packet data and address4 */
178 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
179 sizeof(struct ieee80211_hdr_3addr));
180 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
181 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
182 buf + sizeof(struct ieee80211_hdr_3addr),
183 len - sizeof(struct ieee80211_hdr_3addr));
184
185 skb->priority = LOW_PRIO_TID;
186 __net_timestamp(skb);
187
188 return 0;
189 }
190
191 /*
192 * CFG802.11 operation handler to transmit a management frame.
193 */
194 static int
195 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
196 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
197 {
198 const u8 *buf = params->buf;
199 size_t len = params->len;
200 struct sk_buff *skb;
201 u16 pkt_len;
202 const struct ieee80211_mgmt *mgmt;
203 struct mwifiex_txinfo *tx_info;
204 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
205
206 if (!buf || !len) {
207 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
208 return -EFAULT;
209 }
210
211 mgmt = (const struct ieee80211_mgmt *)buf;
212 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
213 ieee80211_is_probe_resp(mgmt->frame_control)) {
214 /* Since we support offload probe resp, we need to skip probe
215 * resp in AP or GO mode */
216 mwifiex_dbg(priv->adapter, INFO,
217 "info: skip to send probe resp in AP or GO mode\n");
218 return 0;
219 }
220
221 pkt_len = len + ETH_ALEN;
222 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
223 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
224 pkt_len + sizeof(pkt_len));
225
226 if (!skb) {
227 mwifiex_dbg(priv->adapter, ERROR,
228 "allocate skb failed for management frame\n");
229 return -ENOMEM;
230 }
231
232 tx_info = MWIFIEX_SKB_TXCB(skb);
233 memset(tx_info, 0, sizeof(*tx_info));
234 tx_info->bss_num = priv->bss_num;
235 tx_info->bss_type = priv->bss_type;
236 tx_info->pkt_len = pkt_len;
237
238 mwifiex_form_mgmt_frame(skb, buf, len);
239 *cookie = prandom_u32() | 1;
240
241 if (ieee80211_is_action(mgmt->frame_control))
242 skb = mwifiex_clone_skb_for_tx_status(priv,
243 skb,
244 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
245 else
246 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
247 GFP_ATOMIC);
248
249 mwifiex_queue_tx_pkt(priv, skb);
250
251 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
252 return 0;
253 }
254
255 /*
256 * CFG802.11 operation handler to register a mgmt frame.
257 */
258 static void
259 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
260 struct wireless_dev *wdev,
261 u16 frame_type, bool reg)
262 {
263 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
264 u32 mask;
265
266 if (reg)
267 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
268 else
269 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
270
271 if (mask != priv->mgmt_frame_mask) {
272 priv->mgmt_frame_mask = mask;
273 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
274 HostCmd_ACT_GEN_SET, 0,
275 &priv->mgmt_frame_mask, false);
276 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
277 }
278 }
279
280 /*
281 * CFG802.11 operation handler to remain on channel.
282 */
283 static int
284 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
285 struct wireless_dev *wdev,
286 struct ieee80211_channel *chan,
287 unsigned int duration, u64 *cookie)
288 {
289 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
290 int ret;
291
292 if (!chan || !cookie) {
293 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
294 return -EINVAL;
295 }
296
297 if (priv->roc_cfg.cookie) {
298 mwifiex_dbg(priv->adapter, INFO,
299 "info: ongoing ROC, cookie = 0x%llx\n",
300 priv->roc_cfg.cookie);
301 return -EBUSY;
302 }
303
304 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
305 duration);
306
307 if (!ret) {
308 *cookie = prandom_u32() | 1;
309 priv->roc_cfg.cookie = *cookie;
310 priv->roc_cfg.chan = *chan;
311
312 cfg80211_ready_on_channel(wdev, *cookie, chan,
313 duration, GFP_ATOMIC);
314
315 mwifiex_dbg(priv->adapter, INFO,
316 "info: ROC, cookie = 0x%llx\n", *cookie);
317 }
318
319 return ret;
320 }
321
322 /*
323 * CFG802.11 operation handler to cancel remain on channel.
324 */
325 static int
326 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
327 struct wireless_dev *wdev, u64 cookie)
328 {
329 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
330 int ret;
331
332 if (cookie != priv->roc_cfg.cookie)
333 return -ENOENT;
334
335 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
336 &priv->roc_cfg.chan, 0);
337
338 if (!ret) {
339 cfg80211_remain_on_channel_expired(wdev, cookie,
340 &priv->roc_cfg.chan,
341 GFP_ATOMIC);
342
343 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
344
345 mwifiex_dbg(priv->adapter, INFO,
346 "info: cancel ROC, cookie = 0x%llx\n", cookie);
347 }
348
349 return ret;
350 }
351
352 /*
353 * CFG802.11 operation handler to set Tx power.
354 */
355 static int
356 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
357 struct wireless_dev *wdev,
358 enum nl80211_tx_power_setting type,
359 int mbm)
360 {
361 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
362 struct mwifiex_private *priv;
363 struct mwifiex_power_cfg power_cfg;
364 int dbm = MBM_TO_DBM(mbm);
365
366 if (type == NL80211_TX_POWER_FIXED) {
367 power_cfg.is_power_auto = 0;
368 power_cfg.power_level = dbm;
369 } else {
370 power_cfg.is_power_auto = 1;
371 }
372
373 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
374
375 return mwifiex_set_tx_power(priv, &power_cfg);
376 }
377
378 /*
379 * CFG802.11 operation handler to set Power Save option.
380 *
381 * The timeout value, if provided, is currently ignored.
382 */
383 static int
384 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
385 struct net_device *dev,
386 bool enabled, int timeout)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
389 u32 ps_mode;
390
391 if (timeout)
392 mwifiex_dbg(priv->adapter, INFO,
393 "info: ignore timeout value for IEEE Power Save\n");
394
395 ps_mode = enabled;
396
397 return mwifiex_drv_set_power(priv, &ps_mode);
398 }
399
400 /*
401 * CFG802.11 operation handler to set the default network key.
402 */
403 static int
404 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
405 u8 key_index, bool unicast,
406 bool multicast)
407 {
408 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
409
410 /* Return if WEP key not configured */
411 if (!priv->sec_info.wep_enabled)
412 return 0;
413
414 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
415 priv->wep_key_curr_index = key_index;
416 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
417 NULL, 0)) {
418 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
419 return -EFAULT;
420 }
421
422 return 0;
423 }
424
425 /*
426 * CFG802.11 operation handler to add a network key.
427 */
428 static int
429 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
430 u8 key_index, bool pairwise, const u8 *mac_addr,
431 struct key_params *params)
432 {
433 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
434 struct mwifiex_wep_key *wep_key;
435 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
436 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
437
438 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
439 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
440 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
441 if (params->key && params->key_len) {
442 wep_key = &priv->wep_key[key_index];
443 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
444 memcpy(wep_key->key_material, params->key,
445 params->key_len);
446 wep_key->key_index = key_index;
447 wep_key->key_length = params->key_len;
448 priv->sec_info.wep_enabled = 1;
449 }
450 return 0;
451 }
452
453 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
454 key_index, peer_mac, 0)) {
455 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
456 return -EFAULT;
457 }
458
459 return 0;
460 }
461
462 /*
463 * This function sends domain information to the firmware.
464 *
465 * The following information are passed to the firmware -
466 * - Country codes
467 * - Sub bands (first channel, number of channels, maximum Tx power)
468 */
469 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
470 {
471 u8 no_of_triplet = 0;
472 struct ieee80211_country_ie_triplet *t;
473 u8 no_of_parsed_chan = 0;
474 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
475 u8 i, flag = 0;
476 enum ieee80211_band band;
477 struct ieee80211_supported_band *sband;
478 struct ieee80211_channel *ch;
479 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
480 struct mwifiex_private *priv;
481 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
482
483 /* Set country code */
484 domain_info->country_code[0] = adapter->country_code[0];
485 domain_info->country_code[1] = adapter->country_code[1];
486 domain_info->country_code[2] = ' ';
487
488 band = mwifiex_band_to_radio_type(adapter->config_bands);
489 if (!wiphy->bands[band]) {
490 mwifiex_dbg(adapter, ERROR,
491 "11D: setting domain info in FW\n");
492 return -1;
493 }
494
495 sband = wiphy->bands[band];
496
497 for (i = 0; i < sband->n_channels ; i++) {
498 ch = &sband->channels[i];
499 if (ch->flags & IEEE80211_CHAN_DISABLED)
500 continue;
501
502 if (!flag) {
503 flag = 1;
504 first_chan = (u32) ch->hw_value;
505 next_chan = first_chan;
506 max_pwr = ch->max_power;
507 no_of_parsed_chan = 1;
508 continue;
509 }
510
511 if (ch->hw_value == next_chan + 1 &&
512 ch->max_power == max_pwr) {
513 next_chan++;
514 no_of_parsed_chan++;
515 } else {
516 t = &domain_info->triplet[no_of_triplet];
517 t->chans.first_channel = first_chan;
518 t->chans.num_channels = no_of_parsed_chan;
519 t->chans.max_power = max_pwr;
520 no_of_triplet++;
521 first_chan = (u32) ch->hw_value;
522 next_chan = first_chan;
523 max_pwr = ch->max_power;
524 no_of_parsed_chan = 1;
525 }
526 }
527
528 if (flag) {
529 t = &domain_info->triplet[no_of_triplet];
530 t->chans.first_channel = first_chan;
531 t->chans.num_channels = no_of_parsed_chan;
532 t->chans.max_power = max_pwr;
533 no_of_triplet++;
534 }
535
536 domain_info->no_of_triplet = no_of_triplet;
537
538 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
539
540 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
541 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
542 mwifiex_dbg(adapter, INFO,
543 "11D: setting domain info in FW\n");
544 return -1;
545 }
546
547 return 0;
548 }
549
550 /*
551 * CFG802.11 regulatory domain callback function.
552 *
553 * This function is called when the regulatory domain is changed due to the
554 * following reasons -
555 * - Set by driver
556 * - Set by system core
557 * - Set by user
558 * - Set bt Country IE
559 */
560 static void mwifiex_reg_notifier(struct wiphy *wiphy,
561 struct regulatory_request *request)
562 {
563 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
564 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
565 MWIFIEX_BSS_ROLE_ANY);
566 mwifiex_dbg(adapter, INFO,
567 "info: cfg80211 regulatory domain callback for %c%c\n",
568 request->alpha2[0], request->alpha2[1]);
569
570 switch (request->initiator) {
571 case NL80211_REGDOM_SET_BY_DRIVER:
572 case NL80211_REGDOM_SET_BY_CORE:
573 case NL80211_REGDOM_SET_BY_USER:
574 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
575 break;
576 default:
577 mwifiex_dbg(adapter, ERROR,
578 "unknown regdom initiator: %d\n",
579 request->initiator);
580 return;
581 }
582
583 /* Don't send world or same regdom info to firmware */
584 if (strncmp(request->alpha2, "00", 2) &&
585 strncmp(request->alpha2, adapter->country_code,
586 sizeof(request->alpha2))) {
587 memcpy(adapter->country_code, request->alpha2,
588 sizeof(request->alpha2));
589 mwifiex_send_domain_info_cmd_fw(wiphy);
590 mwifiex_dnld_txpwr_table(priv);
591 }
592 }
593
594 /*
595 * This function sets the fragmentation threshold.
596 *
597 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
598 * and MWIFIEX_FRAG_MAX_VALUE.
599 */
600 static int
601 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
602 {
603 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
604 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
605 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
606
607 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
608 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
609 &frag_thr, true);
610 }
611
612 /*
613 * This function sets the RTS threshold.
614
615 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
616 * and MWIFIEX_RTS_MAX_VALUE.
617 */
618 static int
619 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
620 {
621 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
622 rts_thr = MWIFIEX_RTS_MAX_VALUE;
623
624 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
625 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
626 &rts_thr, true);
627 }
628
629 /*
630 * CFG802.11 operation handler to set wiphy parameters.
631 *
632 * This function can be used to set the RTS threshold and the
633 * Fragmentation threshold of the driver.
634 */
635 static int
636 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
637 {
638 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
639 struct mwifiex_private *priv;
640 struct mwifiex_uap_bss_param *bss_cfg;
641 int ret;
642
643 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
644
645 switch (priv->bss_role) {
646 case MWIFIEX_BSS_ROLE_UAP:
647 if (priv->bss_started) {
648 mwifiex_dbg(adapter, ERROR,
649 "cannot change wiphy params when bss started");
650 return -EINVAL;
651 }
652
653 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
654 if (!bss_cfg)
655 return -ENOMEM;
656
657 mwifiex_set_sys_config_invalid_data(bss_cfg);
658
659 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
660 bss_cfg->rts_threshold = wiphy->rts_threshold;
661 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
662 bss_cfg->frag_threshold = wiphy->frag_threshold;
663 if (changed & WIPHY_PARAM_RETRY_LONG)
664 bss_cfg->retry_limit = wiphy->retry_long;
665
666 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
667 HostCmd_ACT_GEN_SET,
668 UAP_BSS_PARAMS_I, bss_cfg,
669 false);
670
671 kfree(bss_cfg);
672 if (ret) {
673 mwifiex_dbg(adapter, ERROR,
674 "Failed to set wiphy phy params\n");
675 return ret;
676 }
677 break;
678
679 case MWIFIEX_BSS_ROLE_STA:
680 if (priv->media_connected) {
681 mwifiex_dbg(adapter, ERROR,
682 "cannot change wiphy params when connected");
683 return -EINVAL;
684 }
685 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
686 ret = mwifiex_set_rts(priv,
687 wiphy->rts_threshold);
688 if (ret)
689 return ret;
690 }
691 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
692 ret = mwifiex_set_frag(priv,
693 wiphy->frag_threshold);
694 if (ret)
695 return ret;
696 }
697 break;
698 }
699
700 return 0;
701 }
702
703 static int
704 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
705 {
706 u16 mode = P2P_MODE_DISABLE;
707
708 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
709 HostCmd_ACT_GEN_SET, 0, &mode, true))
710 return -1;
711
712 return 0;
713 }
714
715 /*
716 * This function initializes the functionalities for P2P client.
717 * The P2P client initialization sequence is:
718 * disable -> device -> client
719 */
720 static int
721 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
722 {
723 u16 mode;
724
725 if (mwifiex_cfg80211_deinit_p2p(priv))
726 return -1;
727
728 mode = P2P_MODE_DEVICE;
729 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
730 HostCmd_ACT_GEN_SET, 0, &mode, true))
731 return -1;
732
733 mode = P2P_MODE_CLIENT;
734 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
735 HostCmd_ACT_GEN_SET, 0, &mode, true))
736 return -1;
737
738 return 0;
739 }
740
741 /*
742 * This function initializes the functionalities for P2P GO.
743 * The P2P GO initialization sequence is:
744 * disable -> device -> GO
745 */
746 static int
747 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
748 {
749 u16 mode;
750
751 if (mwifiex_cfg80211_deinit_p2p(priv))
752 return -1;
753
754 mode = P2P_MODE_DEVICE;
755 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
756 HostCmd_ACT_GEN_SET, 0, &mode, true))
757 return -1;
758
759 mode = P2P_MODE_GO;
760 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
761 HostCmd_ACT_GEN_SET, 0, &mode, true))
762 return -1;
763
764 return 0;
765 }
766
767 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
768 {
769 struct mwifiex_adapter *adapter = priv->adapter;
770 unsigned long flags;
771
772 priv->mgmt_frame_mask = 0;
773 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
774 HostCmd_ACT_GEN_SET, 0,
775 &priv->mgmt_frame_mask, false)) {
776 mwifiex_dbg(adapter, ERROR,
777 "could not unregister mgmt frame rx\n");
778 return -1;
779 }
780
781 mwifiex_deauthenticate(priv, NULL);
782
783 spin_lock_irqsave(&adapter->main_proc_lock, flags);
784 adapter->main_locked = true;
785 if (adapter->mwifiex_processing) {
786 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
787 flush_workqueue(adapter->workqueue);
788 } else {
789 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
790 }
791
792 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
793 adapter->rx_locked = true;
794 if (adapter->rx_processing) {
795 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
796 flush_workqueue(adapter->rx_workqueue);
797 } else {
798 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
799 }
800
801 mwifiex_free_priv(priv);
802 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
803 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
804 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
805
806 return 0;
807 }
808
809 static int
810 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
811 struct net_device *dev,
812 enum nl80211_iftype type)
813 {
814 struct mwifiex_adapter *adapter = priv->adapter;
815 unsigned long flags;
816
817 mwifiex_init_priv(priv);
818
819 priv->bss_mode = type;
820 priv->wdev.iftype = type;
821
822 mwifiex_init_priv_params(priv, priv->netdev);
823 priv->bss_started = 0;
824
825 switch (type) {
826 case NL80211_IFTYPE_STATION:
827 case NL80211_IFTYPE_ADHOC:
828 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
829 MWIFIEX_BSS_TYPE_STA);
830 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
831 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
832 break;
833 case NL80211_IFTYPE_P2P_CLIENT:
834 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
835 MWIFIEX_BSS_TYPE_P2P);
836 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
837 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
838 break;
839 case NL80211_IFTYPE_P2P_GO:
840 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
841 MWIFIEX_BSS_TYPE_P2P);
842 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
843 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
844 break;
845 case NL80211_IFTYPE_AP:
846 priv->bss_num = mwifiex_get_unused_bss_num(adapter,
847 MWIFIEX_BSS_TYPE_UAP);
848 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
849 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
850 break;
851 default:
852 mwifiex_dbg(adapter, ERROR,
853 "%s: changing to %d not supported\n",
854 dev->name, type);
855 return -EOPNOTSUPP;
856 }
857
858 spin_lock_irqsave(&adapter->main_proc_lock, flags);
859 adapter->main_locked = false;
860 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
861
862 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
863 adapter->rx_locked = false;
864 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
865
866 return 0;
867 }
868
869 static int
870 mwifiex_change_vif_to_p2p(struct net_device *dev,
871 enum nl80211_iftype curr_iftype,
872 enum nl80211_iftype type, u32 *flags,
873 struct vif_params *params)
874 {
875 struct mwifiex_private *priv;
876 struct mwifiex_adapter *adapter;
877
878 priv = mwifiex_netdev_get_priv(dev);
879
880 if (!priv)
881 return -1;
882
883 adapter = priv->adapter;
884
885 if (adapter->curr_iface_comb.p2p_intf ==
886 adapter->iface_limit.p2p_intf) {
887 mwifiex_dbg(adapter, ERROR,
888 "cannot create multiple P2P ifaces\n");
889 return -1;
890 }
891
892 mwifiex_dbg(adapter, INFO,
893 "%s: changing role to p2p\n", dev->name);
894
895 if (mwifiex_deinit_priv_params(priv))
896 return -1;
897 if (mwifiex_init_new_priv_params(priv, dev, type))
898 return -1;
899
900 switch (type) {
901 case NL80211_IFTYPE_P2P_CLIENT:
902 if (mwifiex_cfg80211_init_p2p_client(priv))
903 return -EFAULT;
904 break;
905 case NL80211_IFTYPE_P2P_GO:
906 if (mwifiex_cfg80211_init_p2p_go(priv))
907 return -EFAULT;
908 break;
909 default:
910 mwifiex_dbg(adapter, ERROR,
911 "%s: changing to %d not supported\n",
912 dev->name, type);
913 return -EOPNOTSUPP;
914 }
915
916 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
917 HostCmd_ACT_GEN_SET, 0, NULL, true))
918 return -1;
919
920 if (mwifiex_sta_init_cmd(priv, false, false))
921 return -1;
922
923 switch (curr_iftype) {
924 case NL80211_IFTYPE_STATION:
925 case NL80211_IFTYPE_ADHOC:
926 adapter->curr_iface_comb.sta_intf--;
927 break;
928 case NL80211_IFTYPE_AP:
929 adapter->curr_iface_comb.uap_intf--;
930 break;
931 default:
932 break;
933 }
934
935 adapter->curr_iface_comb.p2p_intf++;
936 dev->ieee80211_ptr->iftype = type;
937
938 return 0;
939 }
940
941 static int
942 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
943 enum nl80211_iftype curr_iftype,
944 enum nl80211_iftype type, u32 *flags,
945 struct vif_params *params)
946 {
947 struct mwifiex_private *priv;
948 struct mwifiex_adapter *adapter;
949
950 priv = mwifiex_netdev_get_priv(dev);
951
952 if (!priv)
953 return -1;
954
955 adapter = priv->adapter;
956
957 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
958 curr_iftype != NL80211_IFTYPE_P2P_GO) &&
959 (adapter->curr_iface_comb.sta_intf ==
960 adapter->iface_limit.sta_intf)) {
961 mwifiex_dbg(adapter, ERROR,
962 "cannot create multiple station/adhoc ifaces\n");
963 return -1;
964 }
965
966 if (type == NL80211_IFTYPE_STATION)
967 mwifiex_dbg(adapter, INFO,
968 "%s: changing role to station\n", dev->name);
969 else
970 mwifiex_dbg(adapter, INFO,
971 "%s: changing role to adhoc\n", dev->name);
972
973 if (mwifiex_deinit_priv_params(priv))
974 return -1;
975 if (mwifiex_init_new_priv_params(priv, dev, type))
976 return -1;
977 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
978 HostCmd_ACT_GEN_SET, 0, NULL, true))
979 return -1;
980 if (mwifiex_sta_init_cmd(priv, false, false))
981 return -1;
982
983 switch (curr_iftype) {
984 case NL80211_IFTYPE_P2P_CLIENT:
985 case NL80211_IFTYPE_P2P_GO:
986 adapter->curr_iface_comb.p2p_intf--;
987 break;
988 case NL80211_IFTYPE_AP:
989 adapter->curr_iface_comb.uap_intf--;
990 break;
991 default:
992 break;
993 }
994
995 adapter->curr_iface_comb.sta_intf++;
996 dev->ieee80211_ptr->iftype = type;
997 return 0;
998 }
999
1000 static int
1001 mwifiex_change_vif_to_ap(struct net_device *dev,
1002 enum nl80211_iftype curr_iftype,
1003 enum nl80211_iftype type, u32 *flags,
1004 struct vif_params *params)
1005 {
1006 struct mwifiex_private *priv;
1007 struct mwifiex_adapter *adapter;
1008
1009 priv = mwifiex_netdev_get_priv(dev);
1010
1011 if (!priv)
1012 return -1;
1013
1014 adapter = priv->adapter;
1015
1016 if (adapter->curr_iface_comb.uap_intf ==
1017 adapter->iface_limit.uap_intf) {
1018 mwifiex_dbg(adapter, ERROR,
1019 "cannot create multiple AP ifaces\n");
1020 return -1;
1021 }
1022
1023 mwifiex_dbg(adapter, INFO,
1024 "%s: changing role to AP\n", dev->name);
1025
1026 if (mwifiex_deinit_priv_params(priv))
1027 return -1;
1028 if (mwifiex_init_new_priv_params(priv, dev, type))
1029 return -1;
1030 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1031 HostCmd_ACT_GEN_SET, 0, NULL, true))
1032 return -1;
1033 if (mwifiex_sta_init_cmd(priv, false, false))
1034 return -1;
1035
1036 switch (curr_iftype) {
1037 case NL80211_IFTYPE_P2P_CLIENT:
1038 case NL80211_IFTYPE_P2P_GO:
1039 adapter->curr_iface_comb.p2p_intf--;
1040 break;
1041 case NL80211_IFTYPE_STATION:
1042 case NL80211_IFTYPE_ADHOC:
1043 adapter->curr_iface_comb.sta_intf--;
1044 break;
1045 default:
1046 break;
1047 }
1048
1049 adapter->curr_iface_comb.uap_intf++;
1050 dev->ieee80211_ptr->iftype = type;
1051 return 0;
1052 }
1053 /*
1054 * CFG802.11 operation handler to change interface type.
1055 */
1056 static int
1057 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1058 struct net_device *dev,
1059 enum nl80211_iftype type, u32 *flags,
1060 struct vif_params *params)
1061 {
1062 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1063 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1064
1065 switch (curr_iftype) {
1066 case NL80211_IFTYPE_ADHOC:
1067 switch (type) {
1068 case NL80211_IFTYPE_STATION:
1069 priv->bss_mode = type;
1070 priv->sec_info.authentication_mode =
1071 NL80211_AUTHTYPE_OPEN_SYSTEM;
1072 dev->ieee80211_ptr->iftype = type;
1073 mwifiex_deauthenticate(priv, NULL);
1074 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1075 HostCmd_ACT_GEN_SET, 0, NULL,
1076 true);
1077 case NL80211_IFTYPE_P2P_CLIENT:
1078 case NL80211_IFTYPE_P2P_GO:
1079 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1080 type, flags, params);
1081 case NL80211_IFTYPE_AP:
1082 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1083 flags, params);
1084 case NL80211_IFTYPE_UNSPECIFIED:
1085 mwifiex_dbg(priv->adapter, INFO,
1086 "%s: kept type as IBSS\n", dev->name);
1087 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
1088 return 0;
1089 default:
1090 mwifiex_dbg(priv->adapter, ERROR,
1091 "%s: changing to %d not supported\n",
1092 dev->name, type);
1093 return -EOPNOTSUPP;
1094 }
1095 break;
1096 case NL80211_IFTYPE_STATION:
1097 switch (type) {
1098 case NL80211_IFTYPE_ADHOC:
1099 priv->bss_mode = type;
1100 priv->sec_info.authentication_mode =
1101 NL80211_AUTHTYPE_OPEN_SYSTEM;
1102 dev->ieee80211_ptr->iftype = type;
1103 mwifiex_deauthenticate(priv, NULL);
1104 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1105 HostCmd_ACT_GEN_SET, 0, NULL,
1106 true);
1107 case NL80211_IFTYPE_P2P_CLIENT:
1108 case NL80211_IFTYPE_P2P_GO:
1109 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1110 type, flags, params);
1111 case NL80211_IFTYPE_AP:
1112 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1113 flags, params);
1114 case NL80211_IFTYPE_UNSPECIFIED:
1115 mwifiex_dbg(priv->adapter, INFO,
1116 "%s: kept type as STA\n", dev->name);
1117 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
1118 return 0;
1119 default:
1120 mwifiex_dbg(priv->adapter, ERROR,
1121 "%s: changing to %d not supported\n",
1122 dev->name, type);
1123 return -EOPNOTSUPP;
1124 }
1125 break;
1126 case NL80211_IFTYPE_AP:
1127 switch (type) {
1128 case NL80211_IFTYPE_ADHOC:
1129 case NL80211_IFTYPE_STATION:
1130 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1131 type, flags,
1132 params);
1133 break;
1134 case NL80211_IFTYPE_P2P_CLIENT:
1135 case NL80211_IFTYPE_P2P_GO:
1136 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1137 type, flags, params);
1138 case NL80211_IFTYPE_UNSPECIFIED:
1139 mwifiex_dbg(priv->adapter, INFO,
1140 "%s: kept type as AP\n", dev->name);
1141 case NL80211_IFTYPE_AP: /* This shouldn't happen */
1142 return 0;
1143 default:
1144 mwifiex_dbg(priv->adapter, ERROR,
1145 "%s: changing to %d not supported\n",
1146 dev->name, type);
1147 return -EOPNOTSUPP;
1148 }
1149 break;
1150 case NL80211_IFTYPE_P2P_CLIENT:
1151 case NL80211_IFTYPE_P2P_GO:
1152 switch (type) {
1153 case NL80211_IFTYPE_STATION:
1154 if (mwifiex_cfg80211_deinit_p2p(priv))
1155 return -EFAULT;
1156 priv->adapter->curr_iface_comb.p2p_intf--;
1157 priv->adapter->curr_iface_comb.sta_intf++;
1158 dev->ieee80211_ptr->iftype = type;
1159 break;
1160 case NL80211_IFTYPE_ADHOC:
1161 if (mwifiex_cfg80211_deinit_p2p(priv))
1162 return -EFAULT;
1163 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1164 type, flags,
1165 params);
1166 break;
1167 case NL80211_IFTYPE_AP:
1168 if (mwifiex_cfg80211_deinit_p2p(priv))
1169 return -EFAULT;
1170 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1171 flags, params);
1172 case NL80211_IFTYPE_UNSPECIFIED:
1173 mwifiex_dbg(priv->adapter, INFO,
1174 "%s: kept type as P2P\n", dev->name);
1175 case NL80211_IFTYPE_P2P_CLIENT:
1176 case NL80211_IFTYPE_P2P_GO:
1177 return 0;
1178 default:
1179 mwifiex_dbg(priv->adapter, ERROR,
1180 "%s: changing to %d not supported\n",
1181 dev->name, type);
1182 return -EOPNOTSUPP;
1183 }
1184 break;
1185 default:
1186 mwifiex_dbg(priv->adapter, ERROR,
1187 "%s: unknown iftype: %d\n",
1188 dev->name, dev->ieee80211_ptr->iftype);
1189 return -EOPNOTSUPP;
1190 }
1191
1192
1193 return 0;
1194 }
1195
1196 static void
1197 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1198 struct rate_info *rate)
1199 {
1200 struct mwifiex_adapter *adapter = priv->adapter;
1201
1202 if (adapter->is_hw_11ac_capable) {
1203 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1204 if (tx_htinfo & BIT(0)) {
1205 /* HT */
1206 rate->mcs = priv->tx_rate;
1207 rate->flags |= RATE_INFO_FLAGS_MCS;
1208 }
1209 if (tx_htinfo & BIT(1)) {
1210 /* VHT */
1211 rate->mcs = priv->tx_rate & 0x0F;
1212 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1213 }
1214
1215 if (tx_htinfo & (BIT(1) | BIT(0))) {
1216 /* HT or VHT */
1217 switch (tx_htinfo & (BIT(3) | BIT(2))) {
1218 case 0:
1219 rate->bw = RATE_INFO_BW_20;
1220 break;
1221 case (BIT(2)):
1222 rate->bw = RATE_INFO_BW_40;
1223 break;
1224 case (BIT(3)):
1225 rate->bw = RATE_INFO_BW_80;
1226 break;
1227 case (BIT(3) | BIT(2)):
1228 rate->bw = RATE_INFO_BW_160;
1229 break;
1230 }
1231
1232 if (tx_htinfo & BIT(4))
1233 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1234
1235 if ((priv->tx_rate >> 4) == 1)
1236 rate->nss = 2;
1237 else
1238 rate->nss = 1;
1239 }
1240 } else {
1241 /*
1242 * Bit 0 in tx_htinfo indicates that current Tx rate
1243 * is 11n rate. Valid MCS index values for us are 0 to 15.
1244 */
1245 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1246 rate->mcs = priv->tx_rate;
1247 rate->flags |= RATE_INFO_FLAGS_MCS;
1248 rate->bw = RATE_INFO_BW_20;
1249 if (tx_htinfo & BIT(1))
1250 rate->bw = RATE_INFO_BW_40;
1251 if (tx_htinfo & BIT(2))
1252 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1253 }
1254 }
1255 }
1256
1257 /*
1258 * This function dumps the station information on a buffer.
1259 *
1260 * The following information are shown -
1261 * - Total bytes transmitted
1262 * - Total bytes received
1263 * - Total packets transmitted
1264 * - Total packets received
1265 * - Signal quality level
1266 * - Transmission rate
1267 */
1268 static int
1269 mwifiex_dump_station_info(struct mwifiex_private *priv,
1270 struct mwifiex_sta_node *node,
1271 struct station_info *sinfo)
1272 {
1273 u32 rate;
1274
1275 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1276 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1277 BIT(NL80211_STA_INFO_TX_BITRATE) |
1278 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1279
1280 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1281 if (!node)
1282 return -ENOENT;
1283
1284 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1285 BIT(NL80211_STA_INFO_TX_FAILED);
1286 sinfo->inactive_time =
1287 jiffies_to_msecs(jiffies - node->stats.last_rx);
1288
1289 sinfo->signal = node->stats.rssi;
1290 sinfo->signal_avg = node->stats.rssi;
1291 sinfo->rx_bytes = node->stats.rx_bytes;
1292 sinfo->tx_bytes = node->stats.tx_bytes;
1293 sinfo->rx_packets = node->stats.rx_packets;
1294 sinfo->tx_packets = node->stats.tx_packets;
1295 sinfo->tx_failed = node->stats.tx_failed;
1296
1297 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1298 &sinfo->txrate);
1299 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1300
1301 return 0;
1302 }
1303
1304 /* Get signal information from the firmware */
1305 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1306 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1307 mwifiex_dbg(priv->adapter, ERROR,
1308 "failed to get signal information\n");
1309 return -EFAULT;
1310 }
1311
1312 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1313 mwifiex_dbg(priv->adapter, ERROR,
1314 "getting data rate error\n");
1315 return -EFAULT;
1316 }
1317
1318 /* Get DTIM period information from firmware */
1319 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1320 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1321 &priv->dtim_period, true);
1322
1323 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1324
1325 sinfo->signal_avg = priv->bcn_rssi_avg;
1326 sinfo->rx_bytes = priv->stats.rx_bytes;
1327 sinfo->tx_bytes = priv->stats.tx_bytes;
1328 sinfo->rx_packets = priv->stats.rx_packets;
1329 sinfo->tx_packets = priv->stats.tx_packets;
1330 sinfo->signal = priv->bcn_rssi_avg;
1331 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1332 sinfo->txrate.legacy = rate * 5;
1333
1334 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1335 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1336 sinfo->bss_param.flags = 0;
1337 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1338 WLAN_CAPABILITY_SHORT_PREAMBLE)
1339 sinfo->bss_param.flags |=
1340 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1341 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1342 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1343 sinfo->bss_param.flags |=
1344 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1345 sinfo->bss_param.dtim_period = priv->dtim_period;
1346 sinfo->bss_param.beacon_interval =
1347 priv->curr_bss_params.bss_descriptor.beacon_period;
1348 }
1349
1350 return 0;
1351 }
1352
1353 /*
1354 * CFG802.11 operation handler to get station information.
1355 *
1356 * This function only works in connected mode, and dumps the
1357 * requested station information, if available.
1358 */
1359 static int
1360 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1361 const u8 *mac, struct station_info *sinfo)
1362 {
1363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1364
1365 if (!priv->media_connected)
1366 return -ENOENT;
1367 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1368 return -ENOENT;
1369
1370 return mwifiex_dump_station_info(priv, NULL, sinfo);
1371 }
1372
1373 /*
1374 * CFG802.11 operation handler to dump station information.
1375 */
1376 static int
1377 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1378 int idx, u8 *mac, struct station_info *sinfo)
1379 {
1380 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1381 static struct mwifiex_sta_node *node;
1382
1383 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1384 priv->media_connected && idx == 0) {
1385 ether_addr_copy(mac, priv->cfg_bssid);
1386 return mwifiex_dump_station_info(priv, NULL, sinfo);
1387 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1388 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1389 HostCmd_ACT_GEN_GET, 0, NULL, true);
1390
1391 if (node && (&node->list == &priv->sta_list)) {
1392 node = NULL;
1393 return -ENOENT;
1394 }
1395
1396 node = list_prepare_entry(node, &priv->sta_list, list);
1397 list_for_each_entry_continue(node, &priv->sta_list, list) {
1398 ether_addr_copy(mac, node->mac_addr);
1399 return mwifiex_dump_station_info(priv, node, sinfo);
1400 }
1401 }
1402
1403 return -ENOENT;
1404 }
1405
1406 static int
1407 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1408 int idx, struct survey_info *survey)
1409 {
1410 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1411 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1412 enum ieee80211_band band;
1413
1414 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1415
1416 memset(survey, 0, sizeof(struct survey_info));
1417
1418 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1419 priv->media_connected && idx == 0) {
1420 u8 curr_bss_band = priv->curr_bss_params.band;
1421 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1422
1423 band = mwifiex_band_to_radio_type(curr_bss_band);
1424 survey->channel = ieee80211_get_channel(wiphy,
1425 ieee80211_channel_to_frequency(chan, band));
1426
1427 if (priv->bcn_nf_last) {
1428 survey->filled = SURVEY_INFO_NOISE_DBM;
1429 survey->noise = priv->bcn_nf_last;
1430 }
1431 return 0;
1432 }
1433
1434 if (idx >= priv->adapter->num_in_chan_stats)
1435 return -ENOENT;
1436
1437 if (!pchan_stats[idx].cca_scan_dur)
1438 return 0;
1439
1440 band = pchan_stats[idx].bandcfg;
1441 survey->channel = ieee80211_get_channel(wiphy,
1442 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1443 survey->filled = SURVEY_INFO_NOISE_DBM |
1444 SURVEY_INFO_TIME |
1445 SURVEY_INFO_TIME_BUSY;
1446 survey->noise = pchan_stats[idx].noise;
1447 survey->time = pchan_stats[idx].cca_scan_dur;
1448 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1449
1450 return 0;
1451 }
1452
1453 /* Supported rates to be advertised to the cfg80211 */
1454 static struct ieee80211_rate mwifiex_rates[] = {
1455 {.bitrate = 10, .hw_value = 2, },
1456 {.bitrate = 20, .hw_value = 4, },
1457 {.bitrate = 55, .hw_value = 11, },
1458 {.bitrate = 110, .hw_value = 22, },
1459 {.bitrate = 60, .hw_value = 12, },
1460 {.bitrate = 90, .hw_value = 18, },
1461 {.bitrate = 120, .hw_value = 24, },
1462 {.bitrate = 180, .hw_value = 36, },
1463 {.bitrate = 240, .hw_value = 48, },
1464 {.bitrate = 360, .hw_value = 72, },
1465 {.bitrate = 480, .hw_value = 96, },
1466 {.bitrate = 540, .hw_value = 108, },
1467 };
1468
1469 /* Channel definitions to be advertised to cfg80211 */
1470 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1471 {.center_freq = 2412, .hw_value = 1, },
1472 {.center_freq = 2417, .hw_value = 2, },
1473 {.center_freq = 2422, .hw_value = 3, },
1474 {.center_freq = 2427, .hw_value = 4, },
1475 {.center_freq = 2432, .hw_value = 5, },
1476 {.center_freq = 2437, .hw_value = 6, },
1477 {.center_freq = 2442, .hw_value = 7, },
1478 {.center_freq = 2447, .hw_value = 8, },
1479 {.center_freq = 2452, .hw_value = 9, },
1480 {.center_freq = 2457, .hw_value = 10, },
1481 {.center_freq = 2462, .hw_value = 11, },
1482 {.center_freq = 2467, .hw_value = 12, },
1483 {.center_freq = 2472, .hw_value = 13, },
1484 {.center_freq = 2484, .hw_value = 14, },
1485 };
1486
1487 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1488 .channels = mwifiex_channels_2ghz,
1489 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1490 .bitrates = mwifiex_rates,
1491 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1492 };
1493
1494 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1495 {.center_freq = 5040, .hw_value = 8, },
1496 {.center_freq = 5060, .hw_value = 12, },
1497 {.center_freq = 5080, .hw_value = 16, },
1498 {.center_freq = 5170, .hw_value = 34, },
1499 {.center_freq = 5190, .hw_value = 38, },
1500 {.center_freq = 5210, .hw_value = 42, },
1501 {.center_freq = 5230, .hw_value = 46, },
1502 {.center_freq = 5180, .hw_value = 36, },
1503 {.center_freq = 5200, .hw_value = 40, },
1504 {.center_freq = 5220, .hw_value = 44, },
1505 {.center_freq = 5240, .hw_value = 48, },
1506 {.center_freq = 5260, .hw_value = 52, },
1507 {.center_freq = 5280, .hw_value = 56, },
1508 {.center_freq = 5300, .hw_value = 60, },
1509 {.center_freq = 5320, .hw_value = 64, },
1510 {.center_freq = 5500, .hw_value = 100, },
1511 {.center_freq = 5520, .hw_value = 104, },
1512 {.center_freq = 5540, .hw_value = 108, },
1513 {.center_freq = 5560, .hw_value = 112, },
1514 {.center_freq = 5580, .hw_value = 116, },
1515 {.center_freq = 5600, .hw_value = 120, },
1516 {.center_freq = 5620, .hw_value = 124, },
1517 {.center_freq = 5640, .hw_value = 128, },
1518 {.center_freq = 5660, .hw_value = 132, },
1519 {.center_freq = 5680, .hw_value = 136, },
1520 {.center_freq = 5700, .hw_value = 140, },
1521 {.center_freq = 5745, .hw_value = 149, },
1522 {.center_freq = 5765, .hw_value = 153, },
1523 {.center_freq = 5785, .hw_value = 157, },
1524 {.center_freq = 5805, .hw_value = 161, },
1525 {.center_freq = 5825, .hw_value = 165, },
1526 };
1527
1528 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1529 .channels = mwifiex_channels_5ghz,
1530 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1531 .bitrates = mwifiex_rates + 4,
1532 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1533 };
1534
1535
1536 /* Supported crypto cipher suits to be advertised to cfg80211 */
1537 static const u32 mwifiex_cipher_suites[] = {
1538 WLAN_CIPHER_SUITE_WEP40,
1539 WLAN_CIPHER_SUITE_WEP104,
1540 WLAN_CIPHER_SUITE_TKIP,
1541 WLAN_CIPHER_SUITE_CCMP,
1542 WLAN_CIPHER_SUITE_SMS4,
1543 WLAN_CIPHER_SUITE_AES_CMAC,
1544 };
1545
1546 /* Supported mgmt frame types to be advertised to cfg80211 */
1547 static const struct ieee80211_txrx_stypes
1548 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1549 [NL80211_IFTYPE_STATION] = {
1550 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1551 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1552 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1553 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1554 },
1555 [NL80211_IFTYPE_AP] = {
1556 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1557 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1558 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1559 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1560 },
1561 [NL80211_IFTYPE_P2P_CLIENT] = {
1562 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1563 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1564 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1565 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1566 },
1567 [NL80211_IFTYPE_P2P_GO] = {
1568 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1569 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1570 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1571 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1572 },
1573 };
1574
1575 /*
1576 * CFG802.11 operation handler for setting bit rates.
1577 *
1578 * Function configures data rates to firmware using bitrate mask
1579 * provided by cfg80211.
1580 */
1581 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1582 struct net_device *dev,
1583 const u8 *peer,
1584 const struct cfg80211_bitrate_mask *mask)
1585 {
1586 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1587 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1588 enum ieee80211_band band;
1589 struct mwifiex_adapter *adapter = priv->adapter;
1590
1591 if (!priv->media_connected) {
1592 mwifiex_dbg(adapter, ERROR,
1593 "Can not set Tx data rate in disconnected state\n");
1594 return -EINVAL;
1595 }
1596
1597 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1598
1599 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1600
1601 /* Fill HR/DSSS rates. */
1602 if (band == IEEE80211_BAND_2GHZ)
1603 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1604
1605 /* Fill OFDM rates */
1606 if (band == IEEE80211_BAND_2GHZ)
1607 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1608 else
1609 bitmap_rates[1] = mask->control[band].legacy;
1610
1611 /* Fill HT MCS rates */
1612 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1613 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1614 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1615
1616 /* Fill VHT MCS rates */
1617 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1618 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1619 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1620 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1621 }
1622
1623 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1624 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1625 }
1626
1627 /*
1628 * CFG802.11 operation handler for connection quality monitoring.
1629 *
1630 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1631 * events to FW.
1632 */
1633 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1634 struct net_device *dev,
1635 s32 rssi_thold, u32 rssi_hyst)
1636 {
1637 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1638 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1639
1640 priv->cqm_rssi_thold = rssi_thold;
1641 priv->cqm_rssi_hyst = rssi_hyst;
1642
1643 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1644 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1645
1646 /* Subscribe/unsubscribe low and high rssi events */
1647 if (rssi_thold && rssi_hyst) {
1648 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1649 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1650 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1651 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1652 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1653 return mwifiex_send_cmd(priv,
1654 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1655 0, 0, &subsc_evt, true);
1656 } else {
1657 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1658 return mwifiex_send_cmd(priv,
1659 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1660 0, 0, &subsc_evt, true);
1661 }
1662
1663 return 0;
1664 }
1665
1666 /* cfg80211 operation handler for change_beacon.
1667 * Function retrieves and sets modified management IEs to FW.
1668 */
1669 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1670 struct net_device *dev,
1671 struct cfg80211_beacon_data *data)
1672 {
1673 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1674
1675 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1676 mwifiex_dbg(priv->adapter, ERROR,
1677 "%s: bss_type mismatched\n", __func__);
1678 return -EINVAL;
1679 }
1680
1681 if (!priv->bss_started) {
1682 mwifiex_dbg(priv->adapter, ERROR,
1683 "%s: bss not started\n", __func__);
1684 return -EINVAL;
1685 }
1686
1687 if (mwifiex_set_mgmt_ies(priv, data)) {
1688 mwifiex_dbg(priv->adapter, ERROR,
1689 "%s: setting mgmt ies failed\n", __func__);
1690 return -EFAULT;
1691 }
1692
1693 return 0;
1694 }
1695
1696 /* cfg80211 operation handler for del_station.
1697 * Function deauthenticates station which value is provided in mac parameter.
1698 * If mac is NULL/broadcast, all stations in associated station list are
1699 * deauthenticated. If bss is not started or there are no stations in
1700 * associated stations list, no action is taken.
1701 */
1702 static int
1703 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1704 struct station_del_parameters *params)
1705 {
1706 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1707 struct mwifiex_sta_node *sta_node;
1708 u8 deauth_mac[ETH_ALEN];
1709 unsigned long flags;
1710
1711 if (!priv->bss_started && priv->wdev.cac_started) {
1712 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1713 mwifiex_abort_cac(priv);
1714 }
1715
1716 if (list_empty(&priv->sta_list) || !priv->bss_started)
1717 return 0;
1718
1719 if (!params->mac || is_broadcast_ether_addr(params->mac))
1720 return 0;
1721
1722 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1723 __func__, params->mac);
1724
1725 eth_zero_addr(deauth_mac);
1726
1727 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1728 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1729 if (sta_node)
1730 ether_addr_copy(deauth_mac, params->mac);
1731 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1732
1733 if (is_valid_ether_addr(deauth_mac)) {
1734 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1735 HostCmd_ACT_GEN_SET, 0,
1736 deauth_mac, true))
1737 return -1;
1738 }
1739
1740 return 0;
1741 }
1742
1743 static int
1744 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1745 {
1746 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1747 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1748 MWIFIEX_BSS_ROLE_ANY);
1749 struct mwifiex_ds_ant_cfg ant_cfg;
1750
1751 if (!tx_ant || !rx_ant)
1752 return -EOPNOTSUPP;
1753
1754 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1755 /* Not a MIMO chip. User should provide specific antenna number
1756 * for Tx/Rx path or enable all antennas for diversity
1757 */
1758 if (tx_ant != rx_ant)
1759 return -EOPNOTSUPP;
1760
1761 if ((tx_ant & (tx_ant - 1)) &&
1762 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1763 return -EOPNOTSUPP;
1764
1765 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1766 (priv->adapter->number_of_antenna > 1)) {
1767 tx_ant = RF_ANTENNA_AUTO;
1768 rx_ant = RF_ANTENNA_AUTO;
1769 }
1770 } else {
1771 struct ieee80211_sta_ht_cap *ht_info;
1772 int rx_mcs_supp;
1773 enum ieee80211_band band;
1774
1775 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1776 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1777 if (adapter->is_hw_11ac_capable)
1778 adapter->usr_dot_11ac_mcs_support =
1779 MWIFIEX_11AC_MCS_MAP_1X1;
1780 } else {
1781 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1782 if (adapter->is_hw_11ac_capable)
1783 adapter->usr_dot_11ac_mcs_support =
1784 MWIFIEX_11AC_MCS_MAP_2X2;
1785 }
1786
1787 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1788 if (!adapter->wiphy->bands[band])
1789 continue;
1790
1791 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1792 rx_mcs_supp =
1793 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1794 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1795 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1796 }
1797 }
1798
1799 ant_cfg.tx_ant = tx_ant;
1800 ant_cfg.rx_ant = rx_ant;
1801
1802 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1803 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1804 }
1805
1806 /* cfg80211 operation handler for stop ap.
1807 * Function stops BSS running at uAP interface.
1808 */
1809 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1810 {
1811 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1812
1813 mwifiex_abort_cac(priv);
1814
1815 if (mwifiex_del_mgmt_ies(priv))
1816 mwifiex_dbg(priv->adapter, ERROR,
1817 "Failed to delete mgmt IEs!\n");
1818
1819 priv->ap_11n_enabled = 0;
1820 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1821
1822 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1823 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1824 mwifiex_dbg(priv->adapter, ERROR,
1825 "Failed to stop the BSS\n");
1826 return -1;
1827 }
1828
1829 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1830 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1831 mwifiex_dbg(priv->adapter, ERROR,
1832 "Failed to reset BSS\n");
1833 return -1;
1834 }
1835
1836 if (netif_carrier_ok(priv->netdev))
1837 netif_carrier_off(priv->netdev);
1838 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1839
1840 return 0;
1841 }
1842
1843 /* cfg80211 operation handler for start_ap.
1844 * Function sets beacon period, DTIM period, SSID and security into
1845 * AP config structure.
1846 * AP is configured with these settings and BSS is started.
1847 */
1848 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1849 struct net_device *dev,
1850 struct cfg80211_ap_settings *params)
1851 {
1852 struct mwifiex_uap_bss_param *bss_cfg;
1853 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1854
1855 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1856 return -1;
1857
1858 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1859 if (!bss_cfg)
1860 return -ENOMEM;
1861
1862 mwifiex_set_sys_config_invalid_data(bss_cfg);
1863
1864 if (params->beacon_interval)
1865 bss_cfg->beacon_period = params->beacon_interval;
1866 if (params->dtim_period)
1867 bss_cfg->dtim_period = params->dtim_period;
1868
1869 if (params->ssid && params->ssid_len) {
1870 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1871 bss_cfg->ssid.ssid_len = params->ssid_len;
1872 }
1873 if (params->inactivity_timeout > 0) {
1874 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1875 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1876 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1877 }
1878
1879 switch (params->hidden_ssid) {
1880 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1881 bss_cfg->bcast_ssid_ctl = 1;
1882 break;
1883 case NL80211_HIDDEN_SSID_ZERO_LEN:
1884 bss_cfg->bcast_ssid_ctl = 0;
1885 break;
1886 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1887 /* firmware doesn't support this type of hidden SSID */
1888 default:
1889 kfree(bss_cfg);
1890 return -EINVAL;
1891 }
1892
1893 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1894 mwifiex_set_uap_rates(bss_cfg, params);
1895
1896 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1897 kfree(bss_cfg);
1898 mwifiex_dbg(priv->adapter, ERROR,
1899 "Failed to parse secuirty parameters!\n");
1900 return -1;
1901 }
1902
1903 mwifiex_set_ht_params(priv, bss_cfg, params);
1904
1905 if (priv->adapter->is_hw_11ac_capable) {
1906 mwifiex_set_vht_params(priv, bss_cfg, params);
1907 mwifiex_set_vht_width(priv, params->chandef.width,
1908 priv->ap_11ac_enabled);
1909 }
1910
1911 if (priv->ap_11ac_enabled)
1912 mwifiex_set_11ac_ba_params(priv);
1913 else
1914 mwifiex_set_ba_params(priv);
1915
1916 mwifiex_set_wmm_params(priv, bss_cfg, params);
1917
1918 if (mwifiex_is_11h_active(priv))
1919 mwifiex_set_tpc_params(priv, bss_cfg, params);
1920
1921 if (mwifiex_is_11h_active(priv) &&
1922 !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1923 priv->bss_mode)) {
1924 mwifiex_dbg(priv->adapter, INFO,
1925 "Disable 11h extensions in FW\n");
1926 if (mwifiex_11h_activate(priv, false)) {
1927 mwifiex_dbg(priv->adapter, ERROR,
1928 "Failed to disable 11h extensions!!");
1929 return -1;
1930 }
1931 priv->state_11h.is_11h_active = false;
1932 }
1933
1934 if (mwifiex_config_start_uap(priv, bss_cfg)) {
1935 mwifiex_dbg(priv->adapter, ERROR,
1936 "Failed to start AP\n");
1937 kfree(bss_cfg);
1938 return -1;
1939 }
1940
1941 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1942 return -1;
1943
1944 if (!netif_carrier_ok(priv->netdev))
1945 netif_carrier_on(priv->netdev);
1946 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
1947
1948 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1949 kfree(bss_cfg);
1950 return 0;
1951 }
1952
1953 /*
1954 * CFG802.11 operation handler for disconnection request.
1955 *
1956 * This function does not work when there is already a disconnection
1957 * procedure going on.
1958 */
1959 static int
1960 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1961 u16 reason_code)
1962 {
1963 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1964
1965 if (mwifiex_deauthenticate(priv, NULL))
1966 return -EFAULT;
1967
1968 mwifiex_dbg(priv->adapter, MSG,
1969 "info: successfully disconnected from %pM:\t"
1970 "reason code %d\n", priv->cfg_bssid, reason_code);
1971
1972 eth_zero_addr(priv->cfg_bssid);
1973 priv->hs2_enabled = false;
1974
1975 return 0;
1976 }
1977
1978 /*
1979 * This function informs the CFG802.11 subsystem of a new IBSS.
1980 *
1981 * The following information are sent to the CFG802.11 subsystem
1982 * to register the new IBSS. If we do not register the new IBSS,
1983 * a kernel panic will result.
1984 * - SSID
1985 * - SSID length
1986 * - BSSID
1987 * - Channel
1988 */
1989 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1990 {
1991 struct ieee80211_channel *chan;
1992 struct mwifiex_bss_info bss_info;
1993 struct cfg80211_bss *bss;
1994 int ie_len;
1995 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1996 enum ieee80211_band band;
1997
1998 if (mwifiex_get_bss_info(priv, &bss_info))
1999 return -1;
2000
2001 ie_buf[0] = WLAN_EID_SSID;
2002 ie_buf[1] = bss_info.ssid.ssid_len;
2003
2004 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2005 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2006 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2007
2008 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2009 chan = __ieee80211_get_channel(priv->wdev.wiphy,
2010 ieee80211_channel_to_frequency(bss_info.bss_chan,
2011 band));
2012
2013 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2014 CFG80211_BSS_FTYPE_UNKNOWN,
2015 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2016 0, ie_buf, ie_len, 0, GFP_KERNEL);
2017 if (bss) {
2018 cfg80211_put_bss(priv->wdev.wiphy, bss);
2019 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2020 }
2021
2022 return 0;
2023 }
2024
2025 /*
2026 * This function connects with a BSS.
2027 *
2028 * This function handles both Infra and Ad-Hoc modes. It also performs
2029 * validity checking on the provided parameters, disconnects from the
2030 * current BSS (if any), sets up the association/scan parameters,
2031 * including security settings, and performs specific SSID scan before
2032 * trying to connect.
2033 *
2034 * For Infra mode, the function returns failure if the specified SSID
2035 * is not found in scan table. However, for Ad-Hoc mode, it can create
2036 * the IBSS if it does not exist. On successful completion in either case,
2037 * the function notifies the CFG802.11 subsystem of the new BSS connection.
2038 */
2039 static int
2040 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2041 const u8 *ssid, const u8 *bssid, int mode,
2042 struct ieee80211_channel *channel,
2043 struct cfg80211_connect_params *sme, bool privacy)
2044 {
2045 struct cfg80211_ssid req_ssid;
2046 int ret, auth_type = 0;
2047 struct cfg80211_bss *bss = NULL;
2048 u8 is_scanning_required = 0;
2049
2050 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2051
2052 req_ssid.ssid_len = ssid_len;
2053 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2054 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2055 return -EINVAL;
2056 }
2057
2058 memcpy(req_ssid.ssid, ssid, ssid_len);
2059 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2060 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2061 return -EINVAL;
2062 }
2063
2064 /* As this is new association, clear locally stored
2065 * keys and security related flags */
2066 priv->sec_info.wpa_enabled = false;
2067 priv->sec_info.wpa2_enabled = false;
2068 priv->wep_key_curr_index = 0;
2069 priv->sec_info.encryption_mode = 0;
2070 priv->sec_info.is_authtype_auto = 0;
2071 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2072
2073 if (mode == NL80211_IFTYPE_ADHOC) {
2074 /* "privacy" is set only for ad-hoc mode */
2075 if (privacy) {
2076 /*
2077 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2078 * the firmware can find a matching network from the
2079 * scan. The cfg80211 does not give us the encryption
2080 * mode at this stage so just setting it to WEP here.
2081 */
2082 priv->sec_info.encryption_mode =
2083 WLAN_CIPHER_SUITE_WEP104;
2084 priv->sec_info.authentication_mode =
2085 NL80211_AUTHTYPE_OPEN_SYSTEM;
2086 }
2087
2088 goto done;
2089 }
2090
2091 /* Now handle infra mode. "sme" is valid for infra mode only */
2092 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2093 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2094 priv->sec_info.is_authtype_auto = 1;
2095 } else {
2096 auth_type = sme->auth_type;
2097 }
2098
2099 if (sme->crypto.n_ciphers_pairwise) {
2100 priv->sec_info.encryption_mode =
2101 sme->crypto.ciphers_pairwise[0];
2102 priv->sec_info.authentication_mode = auth_type;
2103 }
2104
2105 if (sme->crypto.cipher_group) {
2106 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2107 priv->sec_info.authentication_mode = auth_type;
2108 }
2109 if (sme->ie)
2110 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2111
2112 if (sme->key) {
2113 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2114 mwifiex_dbg(priv->adapter, INFO,
2115 "info: setting wep encryption\t"
2116 "with key len %d\n", sme->key_len);
2117 priv->wep_key_curr_index = sme->key_idx;
2118 ret = mwifiex_set_encode(priv, NULL, sme->key,
2119 sme->key_len, sme->key_idx,
2120 NULL, 0);
2121 }
2122 }
2123 done:
2124 /*
2125 * Scan entries are valid for some time (15 sec). So we can save one
2126 * active scan time if we just try cfg80211_get_bss first. If it fails
2127 * then request scan and cfg80211_get_bss() again for final output.
2128 */
2129 while (1) {
2130 if (is_scanning_required) {
2131 /* Do specific SSID scanning */
2132 if (mwifiex_request_scan(priv, &req_ssid)) {
2133 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2134 return -EFAULT;
2135 }
2136 }
2137
2138 /* Find the BSS we want using available scan results */
2139 if (mode == NL80211_IFTYPE_ADHOC)
2140 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2141 bssid, ssid, ssid_len,
2142 IEEE80211_BSS_TYPE_IBSS,
2143 IEEE80211_PRIVACY_ANY);
2144 else
2145 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2146 bssid, ssid, ssid_len,
2147 IEEE80211_BSS_TYPE_ESS,
2148 IEEE80211_PRIVACY_ANY);
2149
2150 if (!bss) {
2151 if (is_scanning_required) {
2152 mwifiex_dbg(priv->adapter, WARN,
2153 "assoc: requested bss not found in scan results\n");
2154 break;
2155 }
2156 is_scanning_required = 1;
2157 } else {
2158 mwifiex_dbg(priv->adapter, MSG,
2159 "info: trying to associate to '%s' bssid %pM\n",
2160 (char *)req_ssid.ssid, bss->bssid);
2161 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2162 break;
2163 }
2164 }
2165
2166 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2167 if (ret)
2168 return ret;
2169
2170 if (mode == NL80211_IFTYPE_ADHOC) {
2171 /* Inform the BSS information to kernel, otherwise
2172 * kernel will give a panic after successful assoc */
2173 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2174 return -EFAULT;
2175 }
2176
2177 return ret;
2178 }
2179
2180 /*
2181 * CFG802.11 operation handler for association request.
2182 *
2183 * This function does not work when the current mode is set to Ad-Hoc, or
2184 * when there is already an association procedure going on. The given BSS
2185 * information is used to associate.
2186 */
2187 static int
2188 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2189 struct cfg80211_connect_params *sme)
2190 {
2191 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2192 struct mwifiex_adapter *adapter = priv->adapter;
2193 int ret;
2194
2195 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2196 mwifiex_dbg(adapter, ERROR,
2197 "%s: reject infra assoc request in non-STA role\n",
2198 dev->name);
2199 return -EINVAL;
2200 }
2201
2202 if (priv->wdev.current_bss) {
2203 mwifiex_dbg(adapter, ERROR,
2204 "%s: already connected\n", dev->name);
2205 return -EALREADY;
2206 }
2207
2208 if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2209 mwifiex_dbg(adapter, ERROR,
2210 "%s: Ignore connection.\t"
2211 "Card removed or FW in bad state\n",
2212 dev->name);
2213 return -EFAULT;
2214 }
2215
2216 mwifiex_dbg(adapter, INFO,
2217 "info: Trying to associate to %s and bssid %pM\n",
2218 (char *)sme->ssid, sme->bssid);
2219
2220 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2221 priv->bss_mode, sme->channel, sme, 0);
2222 if (!ret) {
2223 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2224 NULL, 0, WLAN_STATUS_SUCCESS,
2225 GFP_KERNEL);
2226 mwifiex_dbg(priv->adapter, MSG,
2227 "info: associated to bssid %pM successfully\n",
2228 priv->cfg_bssid);
2229 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2230 priv->adapter->auto_tdls &&
2231 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2232 mwifiex_setup_auto_tdls_timer(priv);
2233 } else {
2234 mwifiex_dbg(priv->adapter, ERROR,
2235 "info: association to bssid %pM failed\n",
2236 priv->cfg_bssid);
2237 eth_zero_addr(priv->cfg_bssid);
2238
2239 if (ret > 0)
2240 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2241 NULL, 0, NULL, 0, ret,
2242 GFP_KERNEL);
2243 else
2244 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2245 NULL, 0, NULL, 0,
2246 WLAN_STATUS_UNSPECIFIED_FAILURE,
2247 GFP_KERNEL);
2248 }
2249
2250 return 0;
2251 }
2252
2253 /*
2254 * This function sets following parameters for ibss network.
2255 * - channel
2256 * - start band
2257 * - 11n flag
2258 * - secondary channel offset
2259 */
2260 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2261 struct cfg80211_ibss_params *params)
2262 {
2263 struct mwifiex_adapter *adapter = priv->adapter;
2264 int index = 0, i;
2265 u8 config_bands = 0;
2266
2267 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2268 if (!params->basic_rates) {
2269 config_bands = BAND_B | BAND_G;
2270 } else {
2271 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2272 /*
2273 * Rates below 6 Mbps in the table are CCK
2274 * rates; 802.11b and from 6 they are OFDM;
2275 * 802.11G
2276 */
2277 if (mwifiex_rates[i].bitrate == 60) {
2278 index = 1 << i;
2279 break;
2280 }
2281 }
2282
2283 if (params->basic_rates < index) {
2284 config_bands = BAND_B;
2285 } else {
2286 config_bands = BAND_G;
2287 if (params->basic_rates % index)
2288 config_bands |= BAND_B;
2289 }
2290 }
2291
2292 if (cfg80211_get_chandef_type(&params->chandef) !=
2293 NL80211_CHAN_NO_HT)
2294 config_bands |= BAND_G | BAND_GN;
2295 } else {
2296 if (cfg80211_get_chandef_type(&params->chandef) ==
2297 NL80211_CHAN_NO_HT)
2298 config_bands = BAND_A;
2299 else
2300 config_bands = BAND_AN | BAND_A;
2301 }
2302
2303 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2304 adapter->config_bands = config_bands;
2305 adapter->adhoc_start_band = config_bands;
2306
2307 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2308 adapter->adhoc_11n_enabled = true;
2309 else
2310 adapter->adhoc_11n_enabled = false;
2311 }
2312
2313 adapter->sec_chan_offset =
2314 mwifiex_chan_type_to_sec_chan_offset(
2315 cfg80211_get_chandef_type(&params->chandef));
2316 priv->adhoc_channel = ieee80211_frequency_to_channel(
2317 params->chandef.chan->center_freq);
2318
2319 mwifiex_dbg(adapter, INFO,
2320 "info: set ibss band %d, chan %d, chan offset %d\n",
2321 config_bands, priv->adhoc_channel,
2322 adapter->sec_chan_offset);
2323
2324 return 0;
2325 }
2326
2327 /*
2328 * CFG802.11 operation handler to join an IBSS.
2329 *
2330 * This function does not work in any mode other than Ad-Hoc, or if
2331 * a join operation is already in progress.
2332 */
2333 static int
2334 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2335 struct cfg80211_ibss_params *params)
2336 {
2337 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2338 int ret = 0;
2339
2340 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2341 mwifiex_dbg(priv->adapter, ERROR,
2342 "request to join ibss received\t"
2343 "when station is not in ibss mode\n");
2344 goto done;
2345 }
2346
2347 mwifiex_dbg(priv->adapter, MSG,
2348 "info: trying to join to %s and bssid %pM\n",
2349 (char *)params->ssid, params->bssid);
2350
2351 mwifiex_set_ibss_params(priv, params);
2352
2353 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2354 params->bssid, priv->bss_mode,
2355 params->chandef.chan, NULL,
2356 params->privacy);
2357 done:
2358 if (!ret) {
2359 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2360 params->chandef.chan, GFP_KERNEL);
2361 mwifiex_dbg(priv->adapter, MSG,
2362 "info: joined/created adhoc network with bssid\t"
2363 "%pM successfully\n", priv->cfg_bssid);
2364 } else {
2365 mwifiex_dbg(priv->adapter, ERROR,
2366 "info: failed creating/joining adhoc network\n");
2367 }
2368
2369 return ret;
2370 }
2371
2372 /*
2373 * CFG802.11 operation handler to leave an IBSS.
2374 *
2375 * This function does not work if a leave operation is
2376 * already in progress.
2377 */
2378 static int
2379 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2380 {
2381 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2382
2383 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2384 priv->cfg_bssid);
2385 if (mwifiex_deauthenticate(priv, NULL))
2386 return -EFAULT;
2387
2388 eth_zero_addr(priv->cfg_bssid);
2389
2390 return 0;
2391 }
2392
2393 /*
2394 * CFG802.11 operation handler for scan request.
2395 *
2396 * This function issues a scan request to the firmware based upon
2397 * the user specified scan configuration. On successful completion,
2398 * it also informs the results.
2399 */
2400 static int
2401 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2402 struct cfg80211_scan_request *request)
2403 {
2404 struct net_device *dev = request->wdev->netdev;
2405 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2406 int i, offset, ret;
2407 struct ieee80211_channel *chan;
2408 struct ieee_types_header *ie;
2409 struct mwifiex_user_scan_cfg *user_scan_cfg;
2410
2411 mwifiex_dbg(priv->adapter, CMD,
2412 "info: received scan request on %s\n", dev->name);
2413
2414 /* Block scan request if scan operation or scan cleanup when interface
2415 * is disabled is in process
2416 */
2417 if (priv->scan_request || priv->scan_aborting) {
2418 mwifiex_dbg(priv->adapter, WARN,
2419 "cmd: Scan already in process..\n");
2420 return -EBUSY;
2421 }
2422
2423 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2424 if (!user_scan_cfg)
2425 return -ENOMEM;
2426
2427 priv->scan_request = request;
2428
2429 user_scan_cfg->num_ssids = request->n_ssids;
2430 user_scan_cfg->ssid_list = request->ssids;
2431
2432 if (request->ie && request->ie_len) {
2433 offset = 0;
2434 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2435 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2436 continue;
2437 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2438 ie = (struct ieee_types_header *)(request->ie + offset);
2439 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2440 offset += sizeof(*ie) + ie->len;
2441
2442 if (offset >= request->ie_len)
2443 break;
2444 }
2445 }
2446
2447 for (i = 0; i < min_t(u32, request->n_channels,
2448 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2449 chan = request->channels[i];
2450 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2451 user_scan_cfg->chan_list[i].radio_type = chan->band;
2452
2453 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2454 user_scan_cfg->chan_list[i].scan_type =
2455 MWIFIEX_SCAN_TYPE_PASSIVE;
2456 else
2457 user_scan_cfg->chan_list[i].scan_type =
2458 MWIFIEX_SCAN_TYPE_ACTIVE;
2459
2460 user_scan_cfg->chan_list[i].scan_time = 0;
2461 }
2462
2463 if (priv->adapter->scan_chan_gap_enabled &&
2464 mwifiex_is_any_intf_active(priv))
2465 user_scan_cfg->scan_chan_gap =
2466 priv->adapter->scan_chan_gap_time;
2467
2468 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2469 kfree(user_scan_cfg);
2470 if (ret) {
2471 mwifiex_dbg(priv->adapter, ERROR,
2472 "scan failed: %d\n", ret);
2473 priv->scan_aborting = false;
2474 priv->scan_request = NULL;
2475 return ret;
2476 }
2477
2478 if (request->ie && request->ie_len) {
2479 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2480 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2481 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2482 memset(&priv->vs_ie[i].ie, 0,
2483 MWIFIEX_MAX_VSIE_LEN);
2484 }
2485 }
2486 }
2487 return 0;
2488 }
2489
2490 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2491 struct mwifiex_private *priv)
2492 {
2493 struct mwifiex_adapter *adapter = priv->adapter;
2494
2495 vht_info->vht_supported = true;
2496
2497 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2498 /* Update MCS support for VHT */
2499 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2500 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2501 vht_info->vht_mcs.rx_highest = 0;
2502 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2503 adapter->hw_dot_11ac_mcs_support >> 16);
2504 vht_info->vht_mcs.tx_highest = 0;
2505 }
2506
2507 /*
2508 * This function sets up the CFG802.11 specific HT capability fields
2509 * with default values.
2510 *
2511 * The following default values are set -
2512 * - HT Supported = True
2513 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2514 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2515 * - HT Capabilities supported by firmware
2516 * - MCS information, Rx mask = 0xff
2517 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2518 */
2519 static void
2520 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2521 struct mwifiex_private *priv)
2522 {
2523 int rx_mcs_supp;
2524 struct ieee80211_mcs_info mcs_set;
2525 u8 *mcs = (u8 *)&mcs_set;
2526 struct mwifiex_adapter *adapter = priv->adapter;
2527
2528 ht_info->ht_supported = true;
2529 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2530 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2531
2532 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2533
2534 /* Fill HT capability information */
2535 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2536 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2537 else
2538 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2539
2540 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2541 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2542 else
2543 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2544
2545 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2546 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2547 else
2548 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2549
2550 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2551 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2552 else
2553 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2554
2555 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2556 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2557 else
2558 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2559
2560 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2561 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2562 else
2563 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2564
2565 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2566 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2567 else
2568 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2569
2570 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2571 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2572 else
2573 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2574
2575 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2576 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2577
2578 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2579 /* Set MCS for 1x1/2x2 */
2580 memset(mcs, 0xff, rx_mcs_supp);
2581 /* Clear all the other values */
2582 memset(&mcs[rx_mcs_supp], 0,
2583 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2584 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2585 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2586 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2587 SETHT_MCS32(mcs_set.rx_mask);
2588
2589 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2590
2591 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2592 }
2593
2594 /*
2595 * create a new virtual interface with the given name and name assign type
2596 */
2597 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2598 const char *name,
2599 unsigned char name_assign_type,
2600 enum nl80211_iftype type,
2601 u32 *flags,
2602 struct vif_params *params)
2603 {
2604 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2605 struct mwifiex_private *priv;
2606 struct net_device *dev;
2607 void *mdev_priv;
2608
2609 if (!adapter)
2610 return ERR_PTR(-EFAULT);
2611
2612 switch (type) {
2613 case NL80211_IFTYPE_UNSPECIFIED:
2614 case NL80211_IFTYPE_STATION:
2615 case NL80211_IFTYPE_ADHOC:
2616 if (adapter->curr_iface_comb.sta_intf ==
2617 adapter->iface_limit.sta_intf) {
2618 mwifiex_dbg(adapter, ERROR,
2619 "cannot create multiple sta/adhoc ifaces\n");
2620 return ERR_PTR(-EINVAL);
2621 }
2622
2623 priv = mwifiex_get_unused_priv_by_bss_type(
2624 adapter, MWIFIEX_BSS_TYPE_STA);
2625 if (!priv) {
2626 mwifiex_dbg(adapter, ERROR,
2627 "could not get free private struct\n");
2628 return ERR_PTR(-EFAULT);
2629 }
2630
2631 priv->wdev.wiphy = wiphy;
2632 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2633
2634 if (type == NL80211_IFTYPE_UNSPECIFIED)
2635 priv->bss_mode = NL80211_IFTYPE_STATION;
2636 else
2637 priv->bss_mode = type;
2638
2639 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2640 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2641 priv->bss_priority = 0;
2642 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2643
2644 break;
2645 case NL80211_IFTYPE_AP:
2646 if (adapter->curr_iface_comb.uap_intf ==
2647 adapter->iface_limit.uap_intf) {
2648 mwifiex_dbg(adapter, ERROR,
2649 "cannot create multiple AP ifaces\n");
2650 return ERR_PTR(-EINVAL);
2651 }
2652
2653 priv = mwifiex_get_unused_priv_by_bss_type(
2654 adapter, MWIFIEX_BSS_TYPE_UAP);
2655 if (!priv) {
2656 mwifiex_dbg(adapter, ERROR,
2657 "could not get free private struct\n");
2658 return ERR_PTR(-EFAULT);
2659 }
2660
2661 priv->wdev.wiphy = wiphy;
2662 priv->wdev.iftype = NL80211_IFTYPE_AP;
2663
2664 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2665 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2666 priv->bss_priority = 0;
2667 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2668 priv->bss_started = 0;
2669 priv->bss_mode = type;
2670
2671 break;
2672 case NL80211_IFTYPE_P2P_CLIENT:
2673 if (adapter->curr_iface_comb.p2p_intf ==
2674 adapter->iface_limit.p2p_intf) {
2675 mwifiex_dbg(adapter, ERROR,
2676 "cannot create multiple P2P ifaces\n");
2677 return ERR_PTR(-EINVAL);
2678 }
2679
2680 priv = mwifiex_get_unused_priv_by_bss_type(
2681 adapter, MWIFIEX_BSS_TYPE_P2P);
2682 if (!priv) {
2683 mwifiex_dbg(adapter, ERROR,
2684 "could not get free private struct\n");
2685 return ERR_PTR(-EFAULT);
2686 }
2687
2688 priv->wdev.wiphy = wiphy;
2689 /* At start-up, wpa_supplicant tries to change the interface
2690 * to NL80211_IFTYPE_STATION if it is not managed mode.
2691 */
2692 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2693 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2694
2695 /* Setting bss_type to P2P tells firmware that this interface
2696 * is receiving P2P peers found during find phase and doing
2697 * action frame handshake.
2698 */
2699 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2700
2701 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2702 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2703 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2704 priv->bss_started = 0;
2705
2706 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2707 memset(&priv->wdev, 0, sizeof(priv->wdev));
2708 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2709 return ERR_PTR(-EFAULT);
2710 }
2711
2712 break;
2713 default:
2714 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2715 return ERR_PTR(-EINVAL);
2716 }
2717
2718 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2719 name_assign_type, ether_setup,
2720 IEEE80211_NUM_ACS, 1);
2721 if (!dev) {
2722 mwifiex_dbg(adapter, ERROR,
2723 "no memory available for netdevice\n");
2724 memset(&priv->wdev, 0, sizeof(priv->wdev));
2725 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2726 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2727 return ERR_PTR(-ENOMEM);
2728 }
2729
2730 mwifiex_init_priv_params(priv, dev);
2731 priv->netdev = dev;
2732
2733 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2734 if (adapter->is_hw_11ac_capable)
2735 mwifiex_setup_vht_caps(
2736 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2737
2738 if (adapter->config_bands & BAND_A)
2739 mwifiex_setup_ht_caps(
2740 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2741
2742 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2743 mwifiex_setup_vht_caps(
2744 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2745
2746 dev_net_set(dev, wiphy_net(wiphy));
2747 dev->ieee80211_ptr = &priv->wdev;
2748 dev->ieee80211_ptr->iftype = priv->bss_mode;
2749 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2750 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2751
2752 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2753 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2754 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2755 dev->ethtool_ops = &mwifiex_ethtool_ops;
2756
2757 mdev_priv = netdev_priv(dev);
2758 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2759
2760 SET_NETDEV_DEV(dev, adapter->dev);
2761
2762 /* Register network device */
2763 if (register_netdevice(dev)) {
2764 mwifiex_dbg(adapter, ERROR,
2765 "cannot register virtual network device\n");
2766 free_netdev(dev);
2767 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2768 priv->netdev = NULL;
2769 memset(&priv->wdev, 0, sizeof(priv->wdev));
2770 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2771 return ERR_PTR(-EFAULT);
2772 }
2773
2774 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2775 WQ_HIGHPRI |
2776 WQ_MEM_RECLAIM |
2777 WQ_UNBOUND, 1, name);
2778 if (!priv->dfs_cac_workqueue) {
2779 mwifiex_dbg(adapter, ERROR,
2780 "cannot register virtual network device\n");
2781 free_netdev(dev);
2782 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2783 priv->netdev = NULL;
2784 memset(&priv->wdev, 0, sizeof(priv->wdev));
2785 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2786 return ERR_PTR(-ENOMEM);
2787 }
2788
2789 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2790
2791 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2792 WQ_HIGHPRI | WQ_UNBOUND |
2793 WQ_MEM_RECLAIM, 1, name);
2794 if (!priv->dfs_chan_sw_workqueue) {
2795 mwifiex_dbg(adapter, ERROR,
2796 "cannot register virtual network device\n");
2797 free_netdev(dev);
2798 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2799 priv->netdev = NULL;
2800 memset(&priv->wdev, 0, sizeof(priv->wdev));
2801 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2802 return ERR_PTR(-ENOMEM);
2803 }
2804
2805 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2806 mwifiex_dfs_chan_sw_work_queue);
2807
2808 sema_init(&priv->async_sem, 1);
2809
2810 mwifiex_dbg(adapter, INFO,
2811 "info: %s: Marvell 802.11 Adapter\n", dev->name);
2812
2813 #ifdef CONFIG_DEBUG_FS
2814 mwifiex_dev_debugfs_init(priv);
2815 #endif
2816
2817 switch (type) {
2818 case NL80211_IFTYPE_UNSPECIFIED:
2819 case NL80211_IFTYPE_STATION:
2820 case NL80211_IFTYPE_ADHOC:
2821 adapter->curr_iface_comb.sta_intf++;
2822 break;
2823 case NL80211_IFTYPE_AP:
2824 adapter->curr_iface_comb.uap_intf++;
2825 break;
2826 case NL80211_IFTYPE_P2P_CLIENT:
2827 adapter->curr_iface_comb.p2p_intf++;
2828 break;
2829 default:
2830 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2831 return ERR_PTR(-EINVAL);
2832 }
2833
2834 return &priv->wdev;
2835 }
2836 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2837
2838 /*
2839 * del_virtual_intf: remove the virtual interface determined by dev
2840 */
2841 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2842 {
2843 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2844 struct mwifiex_adapter *adapter = priv->adapter;
2845 struct sk_buff *skb, *tmp;
2846
2847 #ifdef CONFIG_DEBUG_FS
2848 mwifiex_dev_debugfs_remove(priv);
2849 #endif
2850
2851 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2852
2853 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp)
2854 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
2855
2856 if (netif_carrier_ok(priv->netdev))
2857 netif_carrier_off(priv->netdev);
2858
2859 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2860 unregister_netdevice(wdev->netdev);
2861
2862 if (priv->dfs_cac_workqueue) {
2863 flush_workqueue(priv->dfs_cac_workqueue);
2864 destroy_workqueue(priv->dfs_cac_workqueue);
2865 priv->dfs_cac_workqueue = NULL;
2866 }
2867
2868 if (priv->dfs_chan_sw_workqueue) {
2869 flush_workqueue(priv->dfs_chan_sw_workqueue);
2870 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2871 priv->dfs_chan_sw_workqueue = NULL;
2872 }
2873 /* Clear the priv in adapter */
2874 priv->netdev->ieee80211_ptr = NULL;
2875 priv->netdev = NULL;
2876 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2877
2878 priv->media_connected = false;
2879
2880 switch (priv->bss_mode) {
2881 case NL80211_IFTYPE_UNSPECIFIED:
2882 case NL80211_IFTYPE_STATION:
2883 case NL80211_IFTYPE_ADHOC:
2884 adapter->curr_iface_comb.sta_intf--;
2885 break;
2886 case NL80211_IFTYPE_AP:
2887 adapter->curr_iface_comb.uap_intf--;
2888 break;
2889 case NL80211_IFTYPE_P2P_CLIENT:
2890 case NL80211_IFTYPE_P2P_GO:
2891 adapter->curr_iface_comb.p2p_intf--;
2892 break;
2893 default:
2894 mwifiex_dbg(adapter, ERROR,
2895 "del_virtual_intf: type not supported\n");
2896 break;
2897 }
2898
2899 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2900
2901 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2902 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2903 kfree(priv->hist_data);
2904
2905 return 0;
2906 }
2907 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2908
2909 static bool
2910 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2911 u8 max_byte_seq)
2912 {
2913 int j, k, valid_byte_cnt = 0;
2914 bool dont_care_byte = false;
2915
2916 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2917 for (k = 0; k < 8; k++) {
2918 if (pat->mask[j] & 1 << k) {
2919 memcpy(byte_seq + valid_byte_cnt,
2920 &pat->pattern[j * 8 + k], 1);
2921 valid_byte_cnt++;
2922 if (dont_care_byte)
2923 return false;
2924 } else {
2925 if (valid_byte_cnt)
2926 dont_care_byte = true;
2927 }
2928
2929 /* wildcard bytes record as the offset
2930 * before the valid byte
2931 */
2932 if (!valid_byte_cnt && !dont_care_byte)
2933 pat->pkt_offset++;
2934
2935 if (valid_byte_cnt > max_byte_seq)
2936 return false;
2937 }
2938 }
2939
2940 byte_seq[max_byte_seq] = valid_byte_cnt;
2941
2942 return true;
2943 }
2944
2945 #ifdef CONFIG_PM
2946 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2947 struct mwifiex_mef_entry *mef_entry)
2948 {
2949 int i, filt_num = 0, num_ipv4 = 0;
2950 struct in_device *in_dev;
2951 struct in_ifaddr *ifa;
2952 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2953 struct mwifiex_adapter *adapter = priv->adapter;
2954
2955 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2956 mef_entry->action = MEF_ACTION_AUTO_ARP;
2957
2958 /* Enable ARP offload feature */
2959 memset(ips, 0, sizeof(ips));
2960 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2961 if (adapter->priv[i]->netdev) {
2962 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2963 if (!in_dev)
2964 continue;
2965 ifa = in_dev->ifa_list;
2966 if (!ifa || !ifa->ifa_local)
2967 continue;
2968 ips[i] = ifa->ifa_local;
2969 num_ipv4++;
2970 }
2971 }
2972
2973 for (i = 0; i < num_ipv4; i++) {
2974 if (!ips[i])
2975 continue;
2976 mef_entry->filter[filt_num].repeat = 1;
2977 memcpy(mef_entry->filter[filt_num].byte_seq,
2978 (u8 *)&ips[i], sizeof(ips[i]));
2979 mef_entry->filter[filt_num].
2980 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2981 sizeof(ips[i]);
2982 mef_entry->filter[filt_num].offset = 46;
2983 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2984 if (filt_num) {
2985 mef_entry->filter[filt_num].filt_action =
2986 TYPE_OR;
2987 }
2988 filt_num++;
2989 }
2990
2991 mef_entry->filter[filt_num].repeat = 1;
2992 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2993 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2994 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2995 mef_entry->filter[filt_num].offset = 20;
2996 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2997 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2998 }
2999
3000 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
3001 struct mwifiex_ds_mef_cfg *mef_cfg,
3002 struct mwifiex_mef_entry *mef_entry,
3003 struct cfg80211_wowlan *wowlan)
3004 {
3005 int i, filt_num = 0, ret = 0;
3006 bool first_pat = true;
3007 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
3008 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3009 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3010
3011 mef_entry->mode = MEF_MODE_HOST_SLEEP;
3012 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
3013
3014 for (i = 0; i < wowlan->n_patterns; i++) {
3015 memset(byte_seq, 0, sizeof(byte_seq));
3016 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
3017 byte_seq,
3018 MWIFIEX_MEF_MAX_BYTESEQ)) {
3019 mwifiex_dbg(priv->adapter, ERROR,
3020 "Pattern not supported\n");
3021 return -EOPNOTSUPP;
3022 }
3023
3024 if (!wowlan->patterns[i].pkt_offset) {
3025 if (!(byte_seq[0] & 0x01) &&
3026 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
3027 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3028 continue;
3029 } else if (is_broadcast_ether_addr(byte_seq)) {
3030 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
3031 continue;
3032 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3033 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
3034 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3035 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
3036 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
3037 continue;
3038 }
3039 }
3040 mef_entry->filter[filt_num].repeat = 1;
3041 mef_entry->filter[filt_num].offset =
3042 wowlan->patterns[i].pkt_offset;
3043 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
3044 sizeof(byte_seq));
3045 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3046
3047 if (first_pat)
3048 first_pat = false;
3049 else
3050 mef_entry->filter[filt_num].filt_action = TYPE_AND;
3051
3052 filt_num++;
3053 }
3054
3055 if (wowlan->magic_pkt) {
3056 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
3057 mef_entry->filter[filt_num].repeat = 16;
3058 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3059 ETH_ALEN);
3060 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3061 ETH_ALEN;
3062 mef_entry->filter[filt_num].offset = 28;
3063 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3064 if (filt_num)
3065 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3066
3067 filt_num++;
3068 mef_entry->filter[filt_num].repeat = 16;
3069 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3070 ETH_ALEN);
3071 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3072 ETH_ALEN;
3073 mef_entry->filter[filt_num].offset = 56;
3074 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3075 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3076 }
3077 return ret;
3078 }
3079
3080 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3081 struct cfg80211_wowlan *wowlan)
3082 {
3083 int ret = 0, num_entries = 1;
3084 struct mwifiex_ds_mef_cfg mef_cfg;
3085 struct mwifiex_mef_entry *mef_entry;
3086
3087 if (wowlan->n_patterns || wowlan->magic_pkt)
3088 num_entries++;
3089
3090 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3091 if (!mef_entry)
3092 return -ENOMEM;
3093
3094 memset(&mef_cfg, 0, sizeof(mef_cfg));
3095 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3096 MWIFIEX_CRITERIA_UNICAST;
3097 mef_cfg.num_entries = num_entries;
3098 mef_cfg.mef_entry = mef_entry;
3099
3100 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3101
3102 if (wowlan->n_patterns || wowlan->magic_pkt) {
3103 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3104 &mef_entry[1], wowlan);
3105 if (ret)
3106 goto err;
3107 }
3108
3109 if (!mef_cfg.criteria)
3110 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3111 MWIFIEX_CRITERIA_UNICAST |
3112 MWIFIEX_CRITERIA_MULTICAST;
3113
3114 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3115 HostCmd_ACT_GEN_SET, 0,
3116 &mef_cfg, true);
3117
3118 err:
3119 kfree(mef_entry);
3120 return ret;
3121 }
3122
3123 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3124 struct cfg80211_wowlan *wowlan)
3125 {
3126 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3127 struct mwifiex_ds_hs_cfg hs_cfg;
3128 int i, ret = 0;
3129 struct mwifiex_private *priv;
3130
3131 for (i = 0; i < adapter->priv_num; i++) {
3132 priv = adapter->priv[i];
3133 mwifiex_abort_cac(priv);
3134 }
3135
3136 mwifiex_cancel_all_pending_cmd(adapter);
3137
3138 if (!wowlan) {
3139 mwifiex_dbg(adapter, ERROR,
3140 "None of the WOWLAN triggers enabled\n");
3141 return 0;
3142 }
3143
3144 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3145
3146 if (!priv->media_connected) {
3147 mwifiex_dbg(adapter, ERROR,
3148 "Can not configure WOWLAN in disconnected state\n");
3149 return 0;
3150 }
3151
3152 ret = mwifiex_set_mef_filter(priv, wowlan);
3153 if (ret) {
3154 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3155 return ret;
3156 }
3157
3158 if (wowlan->disconnect) {
3159 memset(&hs_cfg, 0, sizeof(hs_cfg));
3160 hs_cfg.is_invoke_hostcmd = false;
3161 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
3162 hs_cfg.gpio = adapter->hs_cfg.gpio;
3163 hs_cfg.gap = adapter->hs_cfg.gap;
3164 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3165 MWIFIEX_SYNC_CMD, &hs_cfg);
3166 if (ret) {
3167 mwifiex_dbg(adapter, ERROR,
3168 "Failed to set HS params\n");
3169 return ret;
3170 }
3171 }
3172
3173 return ret;
3174 }
3175
3176 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3177 {
3178 return 0;
3179 }
3180
3181 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3182 bool enabled)
3183 {
3184 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3185
3186 device_set_wakeup_enable(adapter->dev, enabled);
3187 }
3188 #endif
3189
3190 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3191 {
3192 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3193 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3194 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3195
3196 if ((byte_seq[0] & 0x01) &&
3197 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3198 return PACKET_TYPE_UNICAST;
3199 else if (!memcmp(byte_seq, bc_mac, 4))
3200 return PACKET_TYPE_BROADCAST;
3201 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3202 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3203 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3204 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3205 return PACKET_TYPE_MULTICAST;
3206
3207 return 0;
3208 }
3209
3210 static int
3211 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3212 struct cfg80211_coalesce_rules *crule,
3213 struct mwifiex_coalesce_rule *mrule)
3214 {
3215 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3216 struct filt_field_param *param;
3217 int i;
3218
3219 mrule->max_coalescing_delay = crule->delay;
3220
3221 param = mrule->params;
3222
3223 for (i = 0; i < crule->n_patterns; i++) {
3224 memset(byte_seq, 0, sizeof(byte_seq));
3225 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3226 byte_seq,
3227 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3228 mwifiex_dbg(priv->adapter, ERROR,
3229 "Pattern not supported\n");
3230 return -EOPNOTSUPP;
3231 }
3232
3233 if (!crule->patterns[i].pkt_offset) {
3234 u8 pkt_type;
3235
3236 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3237 if (pkt_type && mrule->pkt_type) {
3238 mwifiex_dbg(priv->adapter, ERROR,
3239 "Multiple packet types not allowed\n");
3240 return -EOPNOTSUPP;
3241 } else if (pkt_type) {
3242 mrule->pkt_type = pkt_type;
3243 continue;
3244 }
3245 }
3246
3247 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3248 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3249 else
3250 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3251
3252 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3253 memcpy(param->operand_byte_stream, byte_seq,
3254 param->operand_len);
3255 param->offset = crule->patterns[i].pkt_offset;
3256 param++;
3257
3258 mrule->num_of_fields++;
3259 }
3260
3261 if (!mrule->pkt_type) {
3262 mwifiex_dbg(priv->adapter, ERROR,
3263 "Packet type can not be determined\n");
3264 return -EOPNOTSUPP;
3265 }
3266
3267 return 0;
3268 }
3269
3270 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3271 struct cfg80211_coalesce *coalesce)
3272 {
3273 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3274 int i, ret;
3275 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3276 struct mwifiex_private *priv =
3277 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3278
3279 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3280 if (!coalesce) {
3281 mwifiex_dbg(adapter, WARN,
3282 "Disable coalesce and reset all previous rules\n");
3283 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3284 HostCmd_ACT_GEN_SET, 0,
3285 &coalesce_cfg, true);
3286 }
3287
3288 coalesce_cfg.num_of_rules = coalesce->n_rules;
3289 for (i = 0; i < coalesce->n_rules; i++) {
3290 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3291 &coalesce_cfg.rule[i]);
3292 if (ret) {
3293 mwifiex_dbg(adapter, ERROR,
3294 "Recheck the patterns provided for rule %d\n",
3295 i + 1);
3296 return ret;
3297 }
3298 }
3299
3300 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3301 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3302 }
3303
3304 /* cfg80211 ops handler for tdls_mgmt.
3305 * Function prepares TDLS action frame packets and forwards them to FW
3306 */
3307 static int
3308 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3309 const u8 *peer, u8 action_code, u8 dialog_token,
3310 u16 status_code, u32 peer_capability,
3311 bool initiator, const u8 *extra_ies,
3312 size_t extra_ies_len)
3313 {
3314 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3315 int ret;
3316
3317 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3318 return -ENOTSUPP;
3319
3320 /* make sure we are in station mode and connected */
3321 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3322 return -ENOTSUPP;
3323
3324 switch (action_code) {
3325 case WLAN_TDLS_SETUP_REQUEST:
3326 mwifiex_dbg(priv->adapter, MSG,
3327 "Send TDLS Setup Request to %pM status_code=%d\n",
3328 peer, status_code);
3329 mwifiex_add_auto_tdls_peer(priv, peer);
3330 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3331 dialog_token, status_code,
3332 extra_ies, extra_ies_len);
3333 break;
3334 case WLAN_TDLS_SETUP_RESPONSE:
3335 mwifiex_add_auto_tdls_peer(priv, peer);
3336 mwifiex_dbg(priv->adapter, MSG,
3337 "Send TDLS Setup Response to %pM status_code=%d\n",
3338 peer, status_code);
3339 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3340 dialog_token, status_code,
3341 extra_ies, extra_ies_len);
3342 break;
3343 case WLAN_TDLS_SETUP_CONFIRM:
3344 mwifiex_dbg(priv->adapter, MSG,
3345 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3346 status_code);
3347 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3348 dialog_token, status_code,
3349 extra_ies, extra_ies_len);
3350 break;
3351 case WLAN_TDLS_TEARDOWN:
3352 mwifiex_dbg(priv->adapter, MSG,
3353 "Send TDLS Tear down to %pM\n", peer);
3354 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3355 dialog_token, status_code,
3356 extra_ies, extra_ies_len);
3357 break;
3358 case WLAN_TDLS_DISCOVERY_REQUEST:
3359 mwifiex_dbg(priv->adapter, MSG,
3360 "Send TDLS Discovery Request to %pM\n", peer);
3361 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3362 dialog_token, status_code,
3363 extra_ies, extra_ies_len);
3364 break;
3365 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3366 mwifiex_dbg(priv->adapter, MSG,
3367 "Send TDLS Discovery Response to %pM\n", peer);
3368 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3369 dialog_token, status_code,
3370 extra_ies, extra_ies_len);
3371 break;
3372 default:
3373 mwifiex_dbg(priv->adapter, ERROR,
3374 "Unknown TDLS mgmt/action frame %pM\n", peer);
3375 ret = -EINVAL;
3376 break;
3377 }
3378
3379 return ret;
3380 }
3381
3382 static int
3383 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3384 const u8 *peer, enum nl80211_tdls_operation action)
3385 {
3386 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3387
3388 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3389 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3390 return -ENOTSUPP;
3391
3392 /* make sure we are in station mode and connected */
3393 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3394 return -ENOTSUPP;
3395
3396 mwifiex_dbg(priv->adapter, MSG,
3397 "TDLS peer=%pM, oper=%d\n", peer, action);
3398
3399 switch (action) {
3400 case NL80211_TDLS_ENABLE_LINK:
3401 action = MWIFIEX_TDLS_ENABLE_LINK;
3402 break;
3403 case NL80211_TDLS_DISABLE_LINK:
3404 action = MWIFIEX_TDLS_DISABLE_LINK;
3405 break;
3406 case NL80211_TDLS_TEARDOWN:
3407 /* shouldn't happen!*/
3408 mwifiex_dbg(priv->adapter, ERROR,
3409 "tdls_oper: teardown from driver not supported\n");
3410 return -EINVAL;
3411 case NL80211_TDLS_SETUP:
3412 /* shouldn't happen!*/
3413 mwifiex_dbg(priv->adapter, ERROR,
3414 "tdls_oper: setup from driver not supported\n");
3415 return -EINVAL;
3416 case NL80211_TDLS_DISCOVERY_REQ:
3417 /* shouldn't happen!*/
3418 mwifiex_dbg(priv->adapter, ERROR,
3419 "tdls_oper: discovery from driver not supported\n");
3420 return -EINVAL;
3421 default:
3422 mwifiex_dbg(priv->adapter, ERROR,
3423 "tdls_oper: operation not supported\n");
3424 return -ENOTSUPP;
3425 }
3426
3427 return mwifiex_tdls_oper(priv, peer, action);
3428 }
3429
3430 static int
3431 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev,
3432 const u8 *addr, u8 oper_class,
3433 struct cfg80211_chan_def *chandef)
3434 {
3435 struct mwifiex_sta_node *sta_ptr;
3436 unsigned long flags;
3437 u16 chan;
3438 u8 second_chan_offset, band;
3439 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3440
3441 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3442 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3443 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3444
3445 if (!sta_ptr) {
3446 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3447 __func__, addr);
3448 return -ENOENT;
3449 }
3450
3451 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] &
3452 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) {
3453 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr);
3454 return -ENOENT;
3455 }
3456
3457 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3458 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) {
3459 wiphy_err(wiphy, "channel switch is running, abort request\n");
3460 return -EALREADY;
3461 }
3462
3463 chan = chandef->chan->hw_value;
3464 second_chan_offset = mwifiex_get_sec_chan_offset(chan);
3465 band = chandef->chan->band;
3466 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band);
3467
3468 return 0;
3469 }
3470
3471 static void
3472 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy,
3473 struct net_device *dev,
3474 const u8 *addr)
3475 {
3476 struct mwifiex_sta_node *sta_ptr;
3477 unsigned long flags;
3478 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3479
3480 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
3481 sta_ptr = mwifiex_get_sta_entry(priv, addr);
3482 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
3483
3484 if (!sta_ptr) {
3485 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n",
3486 __func__, addr);
3487 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING ||
3488 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN ||
3489 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) {
3490 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n",
3491 addr);
3492 } else
3493 mwifiex_stop_tdls_cs(priv, addr);
3494 }
3495
3496 static int
3497 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3498 const u8 *mac, struct station_parameters *params)
3499 {
3500 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3501
3502 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3503 return -ENOTSUPP;
3504
3505 /* make sure we are in station mode and connected */
3506 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3507 return -ENOTSUPP;
3508
3509 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3510 }
3511
3512 static int
3513 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3514 struct cfg80211_csa_settings *params)
3515 {
3516 struct ieee_types_header *chsw_ie;
3517 struct ieee80211_channel_sw_ie *channel_sw;
3518 int chsw_msec;
3519 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3520
3521 if (priv->adapter->scan_processing) {
3522 mwifiex_dbg(priv->adapter, ERROR,
3523 "radar detection: scan in process...\n");
3524 return -EBUSY;
3525 }
3526
3527 if (priv->wdev.cac_started)
3528 return -EBUSY;
3529
3530 if (cfg80211_chandef_identical(&params->chandef,
3531 &priv->dfs_chandef))
3532 return -EINVAL;
3533
3534 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3535 params->beacon_csa.tail,
3536 params->beacon_csa.tail_len);
3537 if (!chsw_ie) {
3538 mwifiex_dbg(priv->adapter, ERROR,
3539 "Could not parse channel switch announcement IE\n");
3540 return -EINVAL;
3541 }
3542
3543 channel_sw = (void *)(chsw_ie + 1);
3544 if (channel_sw->mode) {
3545 if (netif_carrier_ok(priv->netdev))
3546 netif_carrier_off(priv->netdev);
3547 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3548 }
3549
3550 if (mwifiex_del_mgmt_ies(priv))
3551 mwifiex_dbg(priv->adapter, ERROR,
3552 "Failed to delete mgmt IEs!\n");
3553
3554 if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3555 mwifiex_dbg(priv->adapter, ERROR,
3556 "%s: setting mgmt ies failed\n", __func__);
3557 return -EFAULT;
3558 }
3559
3560 memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3561 memcpy(&priv->beacon_after, &params->beacon_after,
3562 sizeof(priv->beacon_after));
3563
3564 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3565 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3566 msecs_to_jiffies(chsw_msec));
3567 return 0;
3568 }
3569
3570 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3571 struct wireless_dev *wdev,
3572 struct cfg80211_chan_def *chandef)
3573 {
3574 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3575 struct mwifiex_bssdescriptor *curr_bss;
3576 struct ieee80211_channel *chan;
3577 u8 second_chan_offset;
3578 enum nl80211_channel_type chan_type;
3579 enum ieee80211_band band;
3580 int freq;
3581 int ret = -ENODATA;
3582
3583 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3584 cfg80211_chandef_valid(&priv->bss_chandef)) {
3585 *chandef = priv->bss_chandef;
3586 ret = 0;
3587 } else if (priv->media_connected) {
3588 curr_bss = &priv->curr_bss_params.bss_descriptor;
3589 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3590 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3591 chan = ieee80211_get_channel(wiphy, freq);
3592
3593 if (curr_bss->bcn_ht_oper) {
3594 second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
3595 IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3596 chan_type = mwifiex_sec_chan_offset_to_chan_type
3597 (second_chan_offset);
3598 cfg80211_chandef_create(chandef, chan, chan_type);
3599 } else {
3600 cfg80211_chandef_create(chandef, chan,
3601 NL80211_CHAN_NO_HT);
3602 }
3603 ret = 0;
3604 }
3605
3606 return ret;
3607 }
3608
3609 static int
3610 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3611 struct net_device *dev,
3612 struct cfg80211_chan_def *chandef,
3613 u32 cac_time_ms)
3614 {
3615 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3616 struct mwifiex_radar_params radar_params;
3617
3618 if (priv->adapter->scan_processing) {
3619 mwifiex_dbg(priv->adapter, ERROR,
3620 "radar detection: scan already in process...\n");
3621 return -EBUSY;
3622 }
3623
3624 if (!mwifiex_is_11h_active(priv)) {
3625 mwifiex_dbg(priv->adapter, INFO,
3626 "Enable 11h extensions in FW\n");
3627 if (mwifiex_11h_activate(priv, true)) {
3628 mwifiex_dbg(priv->adapter, ERROR,
3629 "Failed to activate 11h extensions!!");
3630 return -1;
3631 }
3632 priv->state_11h.is_11h_active = true;
3633 }
3634
3635 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3636 radar_params.chandef = chandef;
3637 radar_params.cac_time_ms = cac_time_ms;
3638
3639 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3640
3641 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3642 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3643 return -1;
3644
3645 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3646 msecs_to_jiffies(cac_time_ms));
3647 return 0;
3648 }
3649
3650 static int
3651 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3652 const u8 *mac,
3653 struct station_parameters *params)
3654 {
3655 int ret;
3656 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3657
3658 /* we support change_station handler only for TDLS peers*/
3659 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3660 return -ENOTSUPP;
3661
3662 /* make sure we are in station mode and connected */
3663 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3664 return -ENOTSUPP;
3665
3666 priv->sta_params = params;
3667
3668 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3669 priv->sta_params = NULL;
3670
3671 return ret;
3672 }
3673
3674 /* station cfg80211 operations */
3675 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3676 .add_virtual_intf = mwifiex_add_virtual_intf,
3677 .del_virtual_intf = mwifiex_del_virtual_intf,
3678 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3679 .scan = mwifiex_cfg80211_scan,
3680 .connect = mwifiex_cfg80211_connect,
3681 .disconnect = mwifiex_cfg80211_disconnect,
3682 .get_station = mwifiex_cfg80211_get_station,
3683 .dump_station = mwifiex_cfg80211_dump_station,
3684 .dump_survey = mwifiex_cfg80211_dump_survey,
3685 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3686 .join_ibss = mwifiex_cfg80211_join_ibss,
3687 .leave_ibss = mwifiex_cfg80211_leave_ibss,
3688 .add_key = mwifiex_cfg80211_add_key,
3689 .del_key = mwifiex_cfg80211_del_key,
3690 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3691 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3692 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3693 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3694 .set_default_key = mwifiex_cfg80211_set_default_key,
3695 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3696 .set_tx_power = mwifiex_cfg80211_set_tx_power,
3697 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3698 .start_ap = mwifiex_cfg80211_start_ap,
3699 .stop_ap = mwifiex_cfg80211_stop_ap,
3700 .change_beacon = mwifiex_cfg80211_change_beacon,
3701 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3702 .set_antenna = mwifiex_cfg80211_set_antenna,
3703 .del_station = mwifiex_cfg80211_del_station,
3704 #ifdef CONFIG_PM
3705 .suspend = mwifiex_cfg80211_suspend,
3706 .resume = mwifiex_cfg80211_resume,
3707 .set_wakeup = mwifiex_cfg80211_set_wakeup,
3708 #endif
3709 .set_coalesce = mwifiex_cfg80211_set_coalesce,
3710 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3711 .tdls_oper = mwifiex_cfg80211_tdls_oper,
3712 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch,
3713 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch,
3714 .add_station = mwifiex_cfg80211_add_station,
3715 .change_station = mwifiex_cfg80211_change_station,
3716 .get_channel = mwifiex_cfg80211_get_channel,
3717 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3718 .channel_switch = mwifiex_cfg80211_channel_switch,
3719 };
3720
3721 #ifdef CONFIG_PM
3722 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3723 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3724 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3725 .pattern_min_len = 1,
3726 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3727 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3728 };
3729 #endif
3730
3731 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3732 {
3733 if (!alpha2 || strlen(alpha2) != 2)
3734 return false;
3735
3736 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3737 return true;
3738
3739 return false;
3740 }
3741
3742 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3743 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3744 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3745 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3746 .pattern_min_len = 1,
3747 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3748 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3749 };
3750
3751 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3752 {
3753 u32 n_channels_bg, n_channels_a = 0;
3754
3755 n_channels_bg = mwifiex_band_2ghz.n_channels;
3756
3757 if (adapter->config_bands & BAND_A)
3758 n_channels_a = mwifiex_band_5ghz.n_channels;
3759
3760 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3761 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3762 adapter->num_in_chan_stats);
3763
3764 if (!adapter->chan_stats)
3765 return -ENOMEM;
3766
3767 return 0;
3768 }
3769
3770 /*
3771 * This function registers the device with CFG802.11 subsystem.
3772 *
3773 * The function creates the wireless device/wiphy, populates it with
3774 * default parameters and handler function pointers, and finally
3775 * registers the device.
3776 */
3777
3778 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3779 {
3780 int ret;
3781 void *wdev_priv;
3782 struct wiphy *wiphy;
3783 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3784 u8 *country_code;
3785 u32 thr, retry;
3786
3787 /* create a new wiphy for use with cfg80211 */
3788 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3789 sizeof(struct mwifiex_adapter *));
3790 if (!wiphy) {
3791 mwifiex_dbg(adapter, ERROR,
3792 "%s: creating new wiphy\n", __func__);
3793 return -ENOMEM;
3794 }
3795 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3796 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3797 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3798 wiphy->max_remain_on_channel_duration = 5000;
3799 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3800 BIT(NL80211_IFTYPE_ADHOC) |
3801 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3802 BIT(NL80211_IFTYPE_P2P_GO) |
3803 BIT(NL80211_IFTYPE_AP);
3804
3805 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3806 if (adapter->config_bands & BAND_A)
3807 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3808 else
3809 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3810
3811 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info))
3812 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs;
3813 else if (adapter->is_hw_11ac_capable)
3814 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht;
3815 else
3816 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3817 wiphy->n_iface_combinations = 1;
3818
3819 /* Initialize cipher suits */
3820 wiphy->cipher_suites = mwifiex_cipher_suites;
3821 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3822
3823 if (adapter->region_code)
3824 wiphy->regulatory_flags |= REGULATORY_DISABLE_BEACON_HINTS |
3825 REGULATORY_COUNTRY_IE_IGNORE;
3826
3827 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3828 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3829 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3830 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3831 WIPHY_FLAG_AP_UAPSD |
3832 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3833 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
3834 WIPHY_FLAG_PS_ON_BY_DEFAULT;
3835
3836 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3837 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3838 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3839
3840 #ifdef CONFIG_PM
3841 wiphy->wowlan = &mwifiex_wowlan_support;
3842 #endif
3843
3844 wiphy->coalesce = &mwifiex_coalesce_support;
3845
3846 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3847 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3848 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3849
3850 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3851 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3852
3853 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3854 NL80211_FEATURE_INACTIVITY_TIMER |
3855 NL80211_FEATURE_NEED_OBSS_SCAN;
3856
3857 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3858 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
3859
3860 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3861 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3862
3863 /* Reserve space for mwifiex specific private data for BSS */
3864 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3865
3866 wiphy->reg_notifier = mwifiex_reg_notifier;
3867
3868 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3869 wdev_priv = wiphy_priv(wiphy);
3870 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3871
3872 set_wiphy_dev(wiphy, priv->adapter->dev);
3873
3874 ret = wiphy_register(wiphy);
3875 if (ret < 0) {
3876 mwifiex_dbg(adapter, ERROR,
3877 "%s: wiphy_register failed: %d\n", __func__, ret);
3878 wiphy_free(wiphy);
3879 return ret;
3880 }
3881
3882 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3883 mwifiex_dbg(adapter, INFO,
3884 "driver hint alpha2: %2.2s\n", reg_alpha2);
3885 regulatory_hint(wiphy, reg_alpha2);
3886 } else {
3887 if (adapter->region_code == 0x00) {
3888 mwifiex_dbg(adapter, WARN, "Ignore world regulatory domain\n");
3889 } else {
3890 country_code =
3891 mwifiex_11d_code_2_region(adapter->region_code);
3892 if (country_code &&
3893 regulatory_hint(wiphy, country_code))
3894 mwifiex_dbg(priv->adapter, ERROR, "regulatory_hint() failed\n");
3895 }
3896 }
3897
3898 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3899 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3900 wiphy->frag_threshold = thr;
3901 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3902 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3903 wiphy->rts_threshold = thr;
3904 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3905 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3906 wiphy->retry_short = (u8) retry;
3907 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3908 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3909 wiphy->retry_long = (u8) retry;
3910
3911 adapter->wiphy = wiphy;
3912 return ret;
3913 }
Linux kernel - Deliverables
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