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cfg80211: remove 80+80 MHz rate reporting
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22
23 static char *reg_alpha2;
24 module_param(reg_alpha2, charp, 0);
25
26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
27 {
28 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
29 BIT(NL80211_IFTYPE_P2P_GO) |
30 BIT(NL80211_IFTYPE_P2P_CLIENT),
31 },
32 {
33 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
34 },
35 };
36
37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
38 .limits = mwifiex_ap_sta_limits,
39 .num_different_channels = 1,
40 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
41 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
42 .beacon_int_infra_match = true,
43 };
44
45 /*
46 * This function maps the nl802.11 channel type into driver channel type.
47 *
48 * The mapping is as follows -
49 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
50 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
51 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
52 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
53 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
54 */
55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
56 {
57 switch (chan_type) {
58 case NL80211_CHAN_NO_HT:
59 case NL80211_CHAN_HT20:
60 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
61 case NL80211_CHAN_HT40PLUS:
62 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
63 case NL80211_CHAN_HT40MINUS:
64 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
65 default:
66 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
67 }
68 }
69
70 /*
71 * This function checks whether WEP is set.
72 */
73 static int
74 mwifiex_is_alg_wep(u32 cipher)
75 {
76 switch (cipher) {
77 case WLAN_CIPHER_SUITE_WEP40:
78 case WLAN_CIPHER_SUITE_WEP104:
79 return 1;
80 default:
81 break;
82 }
83
84 return 0;
85 }
86
87 /*
88 * This function retrieves the private structure from kernel wiphy structure.
89 */
90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
91 {
92 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
93 }
94
95 /*
96 * CFG802.11 operation handler to delete a network key.
97 */
98 static int
99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
100 u8 key_index, bool pairwise, const u8 *mac_addr)
101 {
102 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
103 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
104 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
105
106 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
107 wiphy_err(wiphy, "deleting the crypto keys\n");
108 return -EFAULT;
109 }
110
111 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
112 return 0;
113 }
114
115 /*
116 * This function forms an skb for management frame.
117 */
118 static int
119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
120 {
121 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
122 u16 pkt_len;
123 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
124
125 pkt_len = len + ETH_ALEN;
126
127 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
128 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
129 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
130
131 memcpy(skb_push(skb, sizeof(tx_control)),
132 &tx_control, sizeof(tx_control));
133
134 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
135
136 /* Add packet data and address4 */
137 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
138 sizeof(struct ieee80211_hdr_3addr));
139 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
140 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
141 buf + sizeof(struct ieee80211_hdr_3addr),
142 len - sizeof(struct ieee80211_hdr_3addr));
143
144 skb->priority = LOW_PRIO_TID;
145 __net_timestamp(skb);
146
147 return 0;
148 }
149
150 /*
151 * CFG802.11 operation handler to transmit a management frame.
152 */
153 static int
154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
155 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
156 {
157 const u8 *buf = params->buf;
158 size_t len = params->len;
159 struct sk_buff *skb;
160 u16 pkt_len;
161 const struct ieee80211_mgmt *mgmt;
162 struct mwifiex_txinfo *tx_info;
163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
164
165 if (!buf || !len) {
166 wiphy_err(wiphy, "invalid buffer and length\n");
167 return -EFAULT;
168 }
169
170 mgmt = (const struct ieee80211_mgmt *)buf;
171 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
172 ieee80211_is_probe_resp(mgmt->frame_control)) {
173 /* Since we support offload probe resp, we need to skip probe
174 * resp in AP or GO mode */
175 wiphy_dbg(wiphy,
176 "info: skip to send probe resp in AP or GO mode\n");
177 return 0;
178 }
179
180 pkt_len = len + ETH_ALEN;
181 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
182 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
183 pkt_len + sizeof(pkt_len));
184
185 if (!skb) {
186 wiphy_err(wiphy, "allocate skb failed for management frame\n");
187 return -ENOMEM;
188 }
189
190 tx_info = MWIFIEX_SKB_TXCB(skb);
191 memset(tx_info, 0, sizeof(*tx_info));
192 tx_info->bss_num = priv->bss_num;
193 tx_info->bss_type = priv->bss_type;
194 tx_info->pkt_len = pkt_len;
195
196 mwifiex_form_mgmt_frame(skb, buf, len);
197 *cookie = prandom_u32() | 1;
198
199 if (ieee80211_is_action(mgmt->frame_control))
200 skb = mwifiex_clone_skb_for_tx_status(priv,
201 skb,
202 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
203 else
204 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
205 GFP_ATOMIC);
206
207 mwifiex_queue_tx_pkt(priv, skb);
208
209 wiphy_dbg(wiphy, "info: management frame transmitted\n");
210 return 0;
211 }
212
213 /*
214 * CFG802.11 operation handler to register a mgmt frame.
215 */
216 static void
217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 u16 frame_type, bool reg)
220 {
221 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
222 u32 mask;
223
224 if (reg)
225 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
226 else
227 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
228
229 if (mask != priv->mgmt_frame_mask) {
230 priv->mgmt_frame_mask = mask;
231 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
232 HostCmd_ACT_GEN_SET, 0,
233 &priv->mgmt_frame_mask, false);
234 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
235 }
236 }
237
238 /*
239 * CFG802.11 operation handler to remain on channel.
240 */
241 static int
242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
243 struct wireless_dev *wdev,
244 struct ieee80211_channel *chan,
245 unsigned int duration, u64 *cookie)
246 {
247 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
248 int ret;
249
250 if (!chan || !cookie) {
251 wiphy_err(wiphy, "Invalid parameter for ROC\n");
252 return -EINVAL;
253 }
254
255 if (priv->roc_cfg.cookie) {
256 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
257 priv->roc_cfg.cookie);
258 return -EBUSY;
259 }
260
261 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
262 duration);
263
264 if (!ret) {
265 *cookie = prandom_u32() | 1;
266 priv->roc_cfg.cookie = *cookie;
267 priv->roc_cfg.chan = *chan;
268
269 cfg80211_ready_on_channel(wdev, *cookie, chan,
270 duration, GFP_ATOMIC);
271
272 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
273 }
274
275 return ret;
276 }
277
278 /*
279 * CFG802.11 operation handler to cancel remain on channel.
280 */
281 static int
282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
283 struct wireless_dev *wdev, u64 cookie)
284 {
285 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
286 int ret;
287
288 if (cookie != priv->roc_cfg.cookie)
289 return -ENOENT;
290
291 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
292 &priv->roc_cfg.chan, 0);
293
294 if (!ret) {
295 cfg80211_remain_on_channel_expired(wdev, cookie,
296 &priv->roc_cfg.chan,
297 GFP_ATOMIC);
298
299 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
300
301 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
302 }
303
304 return ret;
305 }
306
307 /*
308 * CFG802.11 operation handler to set Tx power.
309 */
310 static int
311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
312 struct wireless_dev *wdev,
313 enum nl80211_tx_power_setting type,
314 int mbm)
315 {
316 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
317 struct mwifiex_private *priv;
318 struct mwifiex_power_cfg power_cfg;
319 int dbm = MBM_TO_DBM(mbm);
320
321 if (type == NL80211_TX_POWER_FIXED) {
322 power_cfg.is_power_auto = 0;
323 power_cfg.power_level = dbm;
324 } else {
325 power_cfg.is_power_auto = 1;
326 }
327
328 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
329
330 return mwifiex_set_tx_power(priv, &power_cfg);
331 }
332
333 /*
334 * CFG802.11 operation handler to set Power Save option.
335 *
336 * The timeout value, if provided, is currently ignored.
337 */
338 static int
339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
340 struct net_device *dev,
341 bool enabled, int timeout)
342 {
343 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
344 u32 ps_mode;
345
346 if (timeout)
347 wiphy_dbg(wiphy,
348 "info: ignore timeout value for IEEE Power Save\n");
349
350 ps_mode = enabled;
351
352 return mwifiex_drv_set_power(priv, &ps_mode);
353 }
354
355 /*
356 * CFG802.11 operation handler to set the default network key.
357 */
358 static int
359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
360 u8 key_index, bool unicast,
361 bool multicast)
362 {
363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
364
365 /* Return if WEP key not configured */
366 if (!priv->sec_info.wep_enabled)
367 return 0;
368
369 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
370 priv->wep_key_curr_index = key_index;
371 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
372 NULL, 0)) {
373 wiphy_err(wiphy, "set default Tx key index\n");
374 return -EFAULT;
375 }
376
377 return 0;
378 }
379
380 /*
381 * CFG802.11 operation handler to add a network key.
382 */
383 static int
384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
385 u8 key_index, bool pairwise, const u8 *mac_addr,
386 struct key_params *params)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
389 struct mwifiex_wep_key *wep_key;
390 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
391 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
392
393 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
394 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
395 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
396 if (params->key && params->key_len) {
397 wep_key = &priv->wep_key[key_index];
398 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
399 memcpy(wep_key->key_material, params->key,
400 params->key_len);
401 wep_key->key_index = key_index;
402 wep_key->key_length = params->key_len;
403 priv->sec_info.wep_enabled = 1;
404 }
405 return 0;
406 }
407
408 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
409 key_index, peer_mac, 0)) {
410 wiphy_err(wiphy, "crypto keys added\n");
411 return -EFAULT;
412 }
413
414 return 0;
415 }
416
417 /*
418 * This function sends domain information to the firmware.
419 *
420 * The following information are passed to the firmware -
421 * - Country codes
422 * - Sub bands (first channel, number of channels, maximum Tx power)
423 */
424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
425 {
426 u8 no_of_triplet = 0;
427 struct ieee80211_country_ie_triplet *t;
428 u8 no_of_parsed_chan = 0;
429 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
430 u8 i, flag = 0;
431 enum ieee80211_band band;
432 struct ieee80211_supported_band *sband;
433 struct ieee80211_channel *ch;
434 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
435 struct mwifiex_private *priv;
436 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
437
438 /* Set country code */
439 domain_info->country_code[0] = adapter->country_code[0];
440 domain_info->country_code[1] = adapter->country_code[1];
441 domain_info->country_code[2] = ' ';
442
443 band = mwifiex_band_to_radio_type(adapter->config_bands);
444 if (!wiphy->bands[band]) {
445 wiphy_err(wiphy, "11D: setting domain info in FW\n");
446 return -1;
447 }
448
449 sband = wiphy->bands[band];
450
451 for (i = 0; i < sband->n_channels ; i++) {
452 ch = &sband->channels[i];
453 if (ch->flags & IEEE80211_CHAN_DISABLED)
454 continue;
455
456 if (!flag) {
457 flag = 1;
458 first_chan = (u32) ch->hw_value;
459 next_chan = first_chan;
460 max_pwr = ch->max_power;
461 no_of_parsed_chan = 1;
462 continue;
463 }
464
465 if (ch->hw_value == next_chan + 1 &&
466 ch->max_power == max_pwr) {
467 next_chan++;
468 no_of_parsed_chan++;
469 } else {
470 t = &domain_info->triplet[no_of_triplet];
471 t->chans.first_channel = first_chan;
472 t->chans.num_channels = no_of_parsed_chan;
473 t->chans.max_power = max_pwr;
474 no_of_triplet++;
475 first_chan = (u32) ch->hw_value;
476 next_chan = first_chan;
477 max_pwr = ch->max_power;
478 no_of_parsed_chan = 1;
479 }
480 }
481
482 if (flag) {
483 t = &domain_info->triplet[no_of_triplet];
484 t->chans.first_channel = first_chan;
485 t->chans.num_channels = no_of_parsed_chan;
486 t->chans.max_power = max_pwr;
487 no_of_triplet++;
488 }
489
490 domain_info->no_of_triplet = no_of_triplet;
491
492 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
493
494 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
495 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
496 wiphy_err(wiphy, "11D: setting domain info in FW\n");
497 return -1;
498 }
499
500 return 0;
501 }
502
503 /*
504 * CFG802.11 regulatory domain callback function.
505 *
506 * This function is called when the regulatory domain is changed due to the
507 * following reasons -
508 * - Set by driver
509 * - Set by system core
510 * - Set by user
511 * - Set bt Country IE
512 */
513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
514 struct regulatory_request *request)
515 {
516 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
517 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
518 MWIFIEX_BSS_ROLE_ANY);
519
520 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
521 request->alpha2[0], request->alpha2[1]);
522
523 switch (request->initiator) {
524 case NL80211_REGDOM_SET_BY_DRIVER:
525 case NL80211_REGDOM_SET_BY_CORE:
526 case NL80211_REGDOM_SET_BY_USER:
527 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
528 break;
529 default:
530 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
531 request->initiator);
532 return;
533 }
534
535 /* Don't send world or same regdom info to firmware */
536 if (strncmp(request->alpha2, "00", 2) &&
537 strncmp(request->alpha2, adapter->country_code,
538 sizeof(request->alpha2))) {
539 memcpy(adapter->country_code, request->alpha2,
540 sizeof(request->alpha2));
541 mwifiex_send_domain_info_cmd_fw(wiphy);
542 mwifiex_dnld_txpwr_table(priv);
543 }
544 }
545
546 /*
547 * This function sets the fragmentation threshold.
548 *
549 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
550 * and MWIFIEX_FRAG_MAX_VALUE.
551 */
552 static int
553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
554 {
555 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
556 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
557 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
558
559 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
560 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
561 &frag_thr, true);
562 }
563
564 /*
565 * This function sets the RTS threshold.
566
567 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
568 * and MWIFIEX_RTS_MAX_VALUE.
569 */
570 static int
571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
572 {
573 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
574 rts_thr = MWIFIEX_RTS_MAX_VALUE;
575
576 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
577 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
578 &rts_thr, true);
579 }
580
581 /*
582 * CFG802.11 operation handler to set wiphy parameters.
583 *
584 * This function can be used to set the RTS threshold and the
585 * Fragmentation threshold of the driver.
586 */
587 static int
588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
589 {
590 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
591 struct mwifiex_private *priv;
592 struct mwifiex_uap_bss_param *bss_cfg;
593 int ret, bss_started, i;
594
595 for (i = 0; i < adapter->priv_num; i++) {
596 priv = adapter->priv[i];
597
598 switch (priv->bss_role) {
599 case MWIFIEX_BSS_ROLE_UAP:
600 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
601 GFP_KERNEL);
602 if (!bss_cfg)
603 return -ENOMEM;
604
605 mwifiex_set_sys_config_invalid_data(bss_cfg);
606
607 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
608 bss_cfg->rts_threshold = wiphy->rts_threshold;
609 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
610 bss_cfg->frag_threshold = wiphy->frag_threshold;
611 if (changed & WIPHY_PARAM_RETRY_LONG)
612 bss_cfg->retry_limit = wiphy->retry_long;
613
614 bss_started = priv->bss_started;
615
616 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
617 HostCmd_ACT_GEN_SET, 0,
618 NULL, true);
619 if (ret) {
620 wiphy_err(wiphy, "Failed to stop the BSS\n");
621 kfree(bss_cfg);
622 return ret;
623 }
624
625 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
626 HostCmd_ACT_GEN_SET,
627 UAP_BSS_PARAMS_I, bss_cfg,
628 false);
629
630 kfree(bss_cfg);
631
632 if (ret) {
633 wiphy_err(wiphy, "Failed to set bss config\n");
634 return ret;
635 }
636
637 if (!bss_started)
638 break;
639
640 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
641 HostCmd_ACT_GEN_SET, 0,
642 NULL, false);
643 if (ret) {
644 wiphy_err(wiphy, "Failed to start BSS\n");
645 return ret;
646 }
647
648 break;
649 case MWIFIEX_BSS_ROLE_STA:
650 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
651 ret = mwifiex_set_rts(priv,
652 wiphy->rts_threshold);
653 if (ret)
654 return ret;
655 }
656 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
657 ret = mwifiex_set_frag(priv,
658 wiphy->frag_threshold);
659 if (ret)
660 return ret;
661 }
662 break;
663 }
664 }
665
666 return 0;
667 }
668
669 static int
670 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
671 {
672 u16 mode = P2P_MODE_DISABLE;
673
674 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
675 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
676
677 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
678 HostCmd_ACT_GEN_SET, 0, &mode, true))
679 return -1;
680
681 return 0;
682 }
683
684 /*
685 * This function initializes the functionalities for P2P client.
686 * The P2P client initialization sequence is:
687 * disable -> device -> client
688 */
689 static int
690 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
691 {
692 u16 mode;
693
694 if (mwifiex_cfg80211_deinit_p2p(priv))
695 return -1;
696
697 mode = P2P_MODE_DEVICE;
698 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
699 HostCmd_ACT_GEN_SET, 0, &mode, true))
700 return -1;
701
702 mode = P2P_MODE_CLIENT;
703 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
704 HostCmd_ACT_GEN_SET, 0, &mode, true))
705 return -1;
706
707 return 0;
708 }
709
710 /*
711 * This function initializes the functionalities for P2P GO.
712 * The P2P GO initialization sequence is:
713 * disable -> device -> GO
714 */
715 static int
716 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
717 {
718 u16 mode;
719
720 if (mwifiex_cfg80211_deinit_p2p(priv))
721 return -1;
722
723 mode = P2P_MODE_DEVICE;
724 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
725 HostCmd_ACT_GEN_SET, 0, &mode, true))
726 return -1;
727
728 mode = P2P_MODE_GO;
729 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
730 HostCmd_ACT_GEN_SET, 0, &mode, true))
731 return -1;
732
733 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
734 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
735
736 return 0;
737 }
738
739 /*
740 * CFG802.11 operation handler to change interface type.
741 */
742 static int
743 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
744 struct net_device *dev,
745 enum nl80211_iftype type, u32 *flags,
746 struct vif_params *params)
747 {
748 int ret;
749 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
750
751 switch (dev->ieee80211_ptr->iftype) {
752 case NL80211_IFTYPE_ADHOC:
753 switch (type) {
754 case NL80211_IFTYPE_STATION:
755 break;
756 case NL80211_IFTYPE_UNSPECIFIED:
757 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
758 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
759 return 0;
760 case NL80211_IFTYPE_AP:
761 default:
762 wiphy_err(wiphy, "%s: changing to %d not supported\n",
763 dev->name, type);
764 return -EOPNOTSUPP;
765 }
766 break;
767 case NL80211_IFTYPE_STATION:
768 switch (type) {
769 case NL80211_IFTYPE_ADHOC:
770 break;
771 case NL80211_IFTYPE_P2P_CLIENT:
772 if (mwifiex_cfg80211_init_p2p_client(priv))
773 return -EFAULT;
774 dev->ieee80211_ptr->iftype = type;
775 return 0;
776 case NL80211_IFTYPE_P2P_GO:
777 if (mwifiex_cfg80211_init_p2p_go(priv))
778 return -EFAULT;
779 dev->ieee80211_ptr->iftype = type;
780 return 0;
781 case NL80211_IFTYPE_UNSPECIFIED:
782 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
783 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
784 return 0;
785 case NL80211_IFTYPE_AP:
786 default:
787 wiphy_err(wiphy, "%s: changing to %d not supported\n",
788 dev->name, type);
789 return -EOPNOTSUPP;
790 }
791 break;
792 case NL80211_IFTYPE_AP:
793 switch (type) {
794 case NL80211_IFTYPE_UNSPECIFIED:
795 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
796 case NL80211_IFTYPE_AP: /* This shouldn't happen */
797 return 0;
798 case NL80211_IFTYPE_ADHOC:
799 case NL80211_IFTYPE_STATION:
800 default:
801 wiphy_err(wiphy, "%s: changing to %d not supported\n",
802 dev->name, type);
803 return -EOPNOTSUPP;
804 }
805 break;
806 case NL80211_IFTYPE_P2P_CLIENT:
807 case NL80211_IFTYPE_P2P_GO:
808 switch (type) {
809 case NL80211_IFTYPE_STATION:
810 if (mwifiex_cfg80211_deinit_p2p(priv))
811 return -EFAULT;
812 dev->ieee80211_ptr->iftype = type;
813 return 0;
814 default:
815 return -EOPNOTSUPP;
816 }
817 break;
818 default:
819 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
820 dev->name, dev->ieee80211_ptr->iftype);
821 return -EOPNOTSUPP;
822 }
823
824 dev->ieee80211_ptr->iftype = type;
825 priv->bss_mode = type;
826 mwifiex_deauthenticate(priv, NULL);
827
828 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
829
830 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
831 HostCmd_ACT_GEN_SET, 0, NULL, true);
832
833 return ret;
834 }
835
836 static void
837 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
838 struct rate_info *rate)
839 {
840 struct mwifiex_adapter *adapter = priv->adapter;
841
842 if (adapter->is_hw_11ac_capable) {
843 /* bit[1-0]: 00=LG 01=HT 10=VHT */
844 if (tx_htinfo & BIT(0)) {
845 /* HT */
846 rate->mcs = priv->tx_rate;
847 rate->flags |= RATE_INFO_FLAGS_MCS;
848 }
849 if (tx_htinfo & BIT(1)) {
850 /* VHT */
851 rate->mcs = priv->tx_rate & 0x0F;
852 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
853 }
854
855 if (tx_htinfo & (BIT(1) | BIT(0))) {
856 /* HT or VHT */
857 switch (tx_htinfo & (BIT(3) | BIT(2))) {
858 case 0:
859 /* This will be 20MHz */
860 break;
861 case (BIT(2)):
862 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
863 break;
864 case (BIT(3)):
865 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
866 break;
867 case (BIT(3) | BIT(2)):
868 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
869 break;
870 }
871
872 if (tx_htinfo & BIT(4))
873 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
874
875 if ((priv->tx_rate >> 4) == 1)
876 rate->nss = 2;
877 else
878 rate->nss = 1;
879 }
880 } else {
881 /*
882 * Bit 0 in tx_htinfo indicates that current Tx rate
883 * is 11n rate. Valid MCS index values for us are 0 to 15.
884 */
885 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
886 rate->mcs = priv->tx_rate;
887 rate->flags |= RATE_INFO_FLAGS_MCS;
888 if (tx_htinfo & BIT(1))
889 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
890 if (tx_htinfo & BIT(2))
891 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
892 }
893 }
894 }
895
896 /*
897 * This function dumps the station information on a buffer.
898 *
899 * The following information are shown -
900 * - Total bytes transmitted
901 * - Total bytes received
902 * - Total packets transmitted
903 * - Total packets received
904 * - Signal quality level
905 * - Transmission rate
906 */
907 static int
908 mwifiex_dump_station_info(struct mwifiex_private *priv,
909 struct station_info *sinfo)
910 {
911 u32 rate;
912
913 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
914 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
915 BIT(NL80211_STA_INFO_TX_BITRATE) |
916 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
917
918 /* Get signal information from the firmware */
919 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
920 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
921 dev_err(priv->adapter->dev, "failed to get signal information\n");
922 return -EFAULT;
923 }
924
925 if (mwifiex_drv_get_data_rate(priv, &rate)) {
926 dev_err(priv->adapter->dev, "getting data rate\n");
927 return -EFAULT;
928 }
929
930 /* Get DTIM period information from firmware */
931 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
932 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
933 &priv->dtim_period, true);
934
935 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
936
937 sinfo->signal_avg = priv->bcn_rssi_avg;
938 sinfo->rx_bytes = priv->stats.rx_bytes;
939 sinfo->tx_bytes = priv->stats.tx_bytes;
940 sinfo->rx_packets = priv->stats.rx_packets;
941 sinfo->tx_packets = priv->stats.tx_packets;
942 sinfo->signal = priv->bcn_rssi_avg;
943 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
944 sinfo->txrate.legacy = rate * 5;
945
946 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
947 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
948 sinfo->bss_param.flags = 0;
949 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
950 WLAN_CAPABILITY_SHORT_PREAMBLE)
951 sinfo->bss_param.flags |=
952 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
953 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
954 WLAN_CAPABILITY_SHORT_SLOT_TIME)
955 sinfo->bss_param.flags |=
956 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
957 sinfo->bss_param.dtim_period = priv->dtim_period;
958 sinfo->bss_param.beacon_interval =
959 priv->curr_bss_params.bss_descriptor.beacon_period;
960 }
961
962 return 0;
963 }
964
965 /*
966 * CFG802.11 operation handler to get station information.
967 *
968 * This function only works in connected mode, and dumps the
969 * requested station information, if available.
970 */
971 static int
972 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
973 const u8 *mac, struct station_info *sinfo)
974 {
975 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
976
977 if (!priv->media_connected)
978 return -ENOENT;
979 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
980 return -ENOENT;
981
982 return mwifiex_dump_station_info(priv, sinfo);
983 }
984
985 /*
986 * CFG802.11 operation handler to dump station information.
987 */
988 static int
989 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
990 int idx, u8 *mac, struct station_info *sinfo)
991 {
992 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
993
994 if (!priv->media_connected || idx)
995 return -ENOENT;
996
997 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
998
999 return mwifiex_dump_station_info(priv, sinfo);
1000 }
1001
1002 static int
1003 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1004 int idx, struct survey_info *survey)
1005 {
1006 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1007 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1008 enum ieee80211_band band;
1009
1010 dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1011
1012 memset(survey, 0, sizeof(struct survey_info));
1013
1014 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1015 priv->media_connected && idx == 0) {
1016 u8 curr_bss_band = priv->curr_bss_params.band;
1017 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1018
1019 band = mwifiex_band_to_radio_type(curr_bss_band);
1020 survey->channel = ieee80211_get_channel(wiphy,
1021 ieee80211_channel_to_frequency(chan, band));
1022
1023 if (priv->bcn_nf_last) {
1024 survey->filled = SURVEY_INFO_NOISE_DBM;
1025 survey->noise = priv->bcn_nf_last;
1026 }
1027 return 0;
1028 }
1029
1030 if (idx >= priv->adapter->num_in_chan_stats)
1031 return -ENOENT;
1032
1033 if (!pchan_stats[idx].cca_scan_dur)
1034 return 0;
1035
1036 band = pchan_stats[idx].bandcfg;
1037 survey->channel = ieee80211_get_channel(wiphy,
1038 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1039 survey->filled = SURVEY_INFO_NOISE_DBM |
1040 SURVEY_INFO_TIME |
1041 SURVEY_INFO_TIME_BUSY;
1042 survey->noise = pchan_stats[idx].noise;
1043 survey->time = pchan_stats[idx].cca_scan_dur;
1044 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1045
1046 return 0;
1047 }
1048
1049 /* Supported rates to be advertised to the cfg80211 */
1050 static struct ieee80211_rate mwifiex_rates[] = {
1051 {.bitrate = 10, .hw_value = 2, },
1052 {.bitrate = 20, .hw_value = 4, },
1053 {.bitrate = 55, .hw_value = 11, },
1054 {.bitrate = 110, .hw_value = 22, },
1055 {.bitrate = 60, .hw_value = 12, },
1056 {.bitrate = 90, .hw_value = 18, },
1057 {.bitrate = 120, .hw_value = 24, },
1058 {.bitrate = 180, .hw_value = 36, },
1059 {.bitrate = 240, .hw_value = 48, },
1060 {.bitrate = 360, .hw_value = 72, },
1061 {.bitrate = 480, .hw_value = 96, },
1062 {.bitrate = 540, .hw_value = 108, },
1063 };
1064
1065 /* Channel definitions to be advertised to cfg80211 */
1066 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1067 {.center_freq = 2412, .hw_value = 1, },
1068 {.center_freq = 2417, .hw_value = 2, },
1069 {.center_freq = 2422, .hw_value = 3, },
1070 {.center_freq = 2427, .hw_value = 4, },
1071 {.center_freq = 2432, .hw_value = 5, },
1072 {.center_freq = 2437, .hw_value = 6, },
1073 {.center_freq = 2442, .hw_value = 7, },
1074 {.center_freq = 2447, .hw_value = 8, },
1075 {.center_freq = 2452, .hw_value = 9, },
1076 {.center_freq = 2457, .hw_value = 10, },
1077 {.center_freq = 2462, .hw_value = 11, },
1078 {.center_freq = 2467, .hw_value = 12, },
1079 {.center_freq = 2472, .hw_value = 13, },
1080 {.center_freq = 2484, .hw_value = 14, },
1081 };
1082
1083 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1084 .channels = mwifiex_channels_2ghz,
1085 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1086 .bitrates = mwifiex_rates,
1087 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1088 };
1089
1090 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1091 {.center_freq = 5040, .hw_value = 8, },
1092 {.center_freq = 5060, .hw_value = 12, },
1093 {.center_freq = 5080, .hw_value = 16, },
1094 {.center_freq = 5170, .hw_value = 34, },
1095 {.center_freq = 5190, .hw_value = 38, },
1096 {.center_freq = 5210, .hw_value = 42, },
1097 {.center_freq = 5230, .hw_value = 46, },
1098 {.center_freq = 5180, .hw_value = 36, },
1099 {.center_freq = 5200, .hw_value = 40, },
1100 {.center_freq = 5220, .hw_value = 44, },
1101 {.center_freq = 5240, .hw_value = 48, },
1102 {.center_freq = 5260, .hw_value = 52, },
1103 {.center_freq = 5280, .hw_value = 56, },
1104 {.center_freq = 5300, .hw_value = 60, },
1105 {.center_freq = 5320, .hw_value = 64, },
1106 {.center_freq = 5500, .hw_value = 100, },
1107 {.center_freq = 5520, .hw_value = 104, },
1108 {.center_freq = 5540, .hw_value = 108, },
1109 {.center_freq = 5560, .hw_value = 112, },
1110 {.center_freq = 5580, .hw_value = 116, },
1111 {.center_freq = 5600, .hw_value = 120, },
1112 {.center_freq = 5620, .hw_value = 124, },
1113 {.center_freq = 5640, .hw_value = 128, },
1114 {.center_freq = 5660, .hw_value = 132, },
1115 {.center_freq = 5680, .hw_value = 136, },
1116 {.center_freq = 5700, .hw_value = 140, },
1117 {.center_freq = 5745, .hw_value = 149, },
1118 {.center_freq = 5765, .hw_value = 153, },
1119 {.center_freq = 5785, .hw_value = 157, },
1120 {.center_freq = 5805, .hw_value = 161, },
1121 {.center_freq = 5825, .hw_value = 165, },
1122 };
1123
1124 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1125 .channels = mwifiex_channels_5ghz,
1126 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1127 .bitrates = mwifiex_rates + 4,
1128 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1129 };
1130
1131
1132 /* Supported crypto cipher suits to be advertised to cfg80211 */
1133 static const u32 mwifiex_cipher_suites[] = {
1134 WLAN_CIPHER_SUITE_WEP40,
1135 WLAN_CIPHER_SUITE_WEP104,
1136 WLAN_CIPHER_SUITE_TKIP,
1137 WLAN_CIPHER_SUITE_CCMP,
1138 WLAN_CIPHER_SUITE_AES_CMAC,
1139 };
1140
1141 /* Supported mgmt frame types to be advertised to cfg80211 */
1142 static const struct ieee80211_txrx_stypes
1143 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1144 [NL80211_IFTYPE_STATION] = {
1145 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1146 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1147 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1148 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1149 },
1150 [NL80211_IFTYPE_AP] = {
1151 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1152 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1153 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1154 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1155 },
1156 [NL80211_IFTYPE_P2P_CLIENT] = {
1157 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1158 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1159 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1160 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1161 },
1162 [NL80211_IFTYPE_P2P_GO] = {
1163 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1164 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1165 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1166 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1167 },
1168 };
1169
1170 /*
1171 * CFG802.11 operation handler for setting bit rates.
1172 *
1173 * Function configures data rates to firmware using bitrate mask
1174 * provided by cfg80211.
1175 */
1176 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1177 struct net_device *dev,
1178 const u8 *peer,
1179 const struct cfg80211_bitrate_mask *mask)
1180 {
1181 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1182 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1183 enum ieee80211_band band;
1184 struct mwifiex_adapter *adapter = priv->adapter;
1185
1186 if (!priv->media_connected) {
1187 dev_err(adapter->dev,
1188 "Can not set Tx data rate in disconnected state\n");
1189 return -EINVAL;
1190 }
1191
1192 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1193
1194 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1195
1196 /* Fill HR/DSSS rates. */
1197 if (band == IEEE80211_BAND_2GHZ)
1198 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1199
1200 /* Fill OFDM rates */
1201 if (band == IEEE80211_BAND_2GHZ)
1202 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1203 else
1204 bitmap_rates[1] = mask->control[band].legacy;
1205
1206 /* Fill HT MCS rates */
1207 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1208 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1209 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1210
1211 /* Fill VHT MCS rates */
1212 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1213 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1214 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1215 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1216 }
1217
1218 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1219 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1220 }
1221
1222 /*
1223 * CFG802.11 operation handler for connection quality monitoring.
1224 *
1225 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1226 * events to FW.
1227 */
1228 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1229 struct net_device *dev,
1230 s32 rssi_thold, u32 rssi_hyst)
1231 {
1232 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1233 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1234
1235 priv->cqm_rssi_thold = rssi_thold;
1236 priv->cqm_rssi_hyst = rssi_hyst;
1237
1238 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1239 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1240
1241 /* Subscribe/unsubscribe low and high rssi events */
1242 if (rssi_thold && rssi_hyst) {
1243 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1244 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1245 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1246 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1247 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1248 return mwifiex_send_cmd(priv,
1249 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1250 0, 0, &subsc_evt, true);
1251 } else {
1252 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1253 return mwifiex_send_cmd(priv,
1254 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1255 0, 0, &subsc_evt, true);
1256 }
1257
1258 return 0;
1259 }
1260
1261 /* cfg80211 operation handler for change_beacon.
1262 * Function retrieves and sets modified management IEs to FW.
1263 */
1264 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1265 struct net_device *dev,
1266 struct cfg80211_beacon_data *data)
1267 {
1268 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1269
1270 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1271 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1272 return -EINVAL;
1273 }
1274
1275 if (!priv->bss_started) {
1276 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1277 return -EINVAL;
1278 }
1279
1280 if (mwifiex_set_mgmt_ies(priv, data)) {
1281 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1282 return -EFAULT;
1283 }
1284
1285 return 0;
1286 }
1287
1288 /* cfg80211 operation handler for del_station.
1289 * Function deauthenticates station which value is provided in mac parameter.
1290 * If mac is NULL/broadcast, all stations in associated station list are
1291 * deauthenticated. If bss is not started or there are no stations in
1292 * associated stations list, no action is taken.
1293 */
1294 static int
1295 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1296 struct station_del_parameters *params)
1297 {
1298 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1299 struct mwifiex_sta_node *sta_node;
1300 u8 deauth_mac[ETH_ALEN];
1301 unsigned long flags;
1302
1303 if (list_empty(&priv->sta_list) || !priv->bss_started)
1304 return 0;
1305
1306 if (!params->mac || is_broadcast_ether_addr(params->mac))
1307 return 0;
1308
1309 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, params->mac);
1310
1311 memset(deauth_mac, 0, ETH_ALEN);
1312
1313 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1314 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1315 if (sta_node)
1316 ether_addr_copy(deauth_mac, params->mac);
1317 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1318
1319 if (is_valid_ether_addr(deauth_mac)) {
1320 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1321 HostCmd_ACT_GEN_SET, 0,
1322 deauth_mac, true))
1323 return -1;
1324 }
1325
1326 return 0;
1327 }
1328
1329 static int
1330 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1331 {
1332 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1333 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1334 MWIFIEX_BSS_ROLE_ANY);
1335 struct mwifiex_ds_ant_cfg ant_cfg;
1336
1337 if (!tx_ant || !rx_ant)
1338 return -EOPNOTSUPP;
1339
1340 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1341 /* Not a MIMO chip. User should provide specific antenna number
1342 * for Tx/Rx path or enable all antennas for diversity
1343 */
1344 if (tx_ant != rx_ant)
1345 return -EOPNOTSUPP;
1346
1347 if ((tx_ant & (tx_ant - 1)) &&
1348 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1349 return -EOPNOTSUPP;
1350
1351 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1352 (priv->adapter->number_of_antenna > 1)) {
1353 tx_ant = RF_ANTENNA_AUTO;
1354 rx_ant = RF_ANTENNA_AUTO;
1355 }
1356 } else {
1357 struct ieee80211_sta_ht_cap *ht_info;
1358 int rx_mcs_supp;
1359 enum ieee80211_band band;
1360
1361 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1362 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1363 if (adapter->is_hw_11ac_capable)
1364 adapter->usr_dot_11ac_mcs_support =
1365 MWIFIEX_11AC_MCS_MAP_1X1;
1366 } else {
1367 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1368 if (adapter->is_hw_11ac_capable)
1369 adapter->usr_dot_11ac_mcs_support =
1370 MWIFIEX_11AC_MCS_MAP_2X2;
1371 }
1372
1373 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1374 if (!adapter->wiphy->bands[band])
1375 continue;
1376
1377 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1378 rx_mcs_supp =
1379 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1380 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1381 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1382 }
1383 }
1384
1385 ant_cfg.tx_ant = tx_ant;
1386 ant_cfg.rx_ant = rx_ant;
1387
1388 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1389 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1390 }
1391
1392 /* cfg80211 operation handler for stop ap.
1393 * Function stops BSS running at uAP interface.
1394 */
1395 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1396 {
1397 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1398
1399 if (mwifiex_del_mgmt_ies(priv))
1400 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1401
1402 priv->ap_11n_enabled = 0;
1403
1404 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1405 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1406 wiphy_err(wiphy, "Failed to stop the BSS\n");
1407 return -1;
1408 }
1409
1410 return 0;
1411 }
1412
1413 /* cfg80211 operation handler for start_ap.
1414 * Function sets beacon period, DTIM period, SSID and security into
1415 * AP config structure.
1416 * AP is configured with these settings and BSS is started.
1417 */
1418 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1419 struct net_device *dev,
1420 struct cfg80211_ap_settings *params)
1421 {
1422 struct mwifiex_uap_bss_param *bss_cfg;
1423 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1424 u8 config_bands = 0;
1425
1426 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1427 return -1;
1428 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1429 return -1;
1430
1431 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1432 if (!bss_cfg)
1433 return -ENOMEM;
1434
1435 mwifiex_set_sys_config_invalid_data(bss_cfg);
1436
1437 if (params->beacon_interval)
1438 bss_cfg->beacon_period = params->beacon_interval;
1439 if (params->dtim_period)
1440 bss_cfg->dtim_period = params->dtim_period;
1441
1442 if (params->ssid && params->ssid_len) {
1443 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1444 bss_cfg->ssid.ssid_len = params->ssid_len;
1445 }
1446
1447 switch (params->hidden_ssid) {
1448 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1449 bss_cfg->bcast_ssid_ctl = 1;
1450 break;
1451 case NL80211_HIDDEN_SSID_ZERO_LEN:
1452 bss_cfg->bcast_ssid_ctl = 0;
1453 break;
1454 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1455 /* firmware doesn't support this type of hidden SSID */
1456 default:
1457 kfree(bss_cfg);
1458 return -EINVAL;
1459 }
1460
1461 bss_cfg->channel = ieee80211_frequency_to_channel(
1462 params->chandef.chan->center_freq);
1463
1464 /* Set appropriate bands */
1465 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1466 bss_cfg->band_cfg = BAND_CONFIG_BG;
1467 config_bands = BAND_B | BAND_G;
1468
1469 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1470 config_bands |= BAND_GN;
1471 } else {
1472 bss_cfg->band_cfg = BAND_CONFIG_A;
1473 config_bands = BAND_A;
1474
1475 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1476 config_bands |= BAND_AN;
1477
1478 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1479 config_bands |= BAND_AAC;
1480 }
1481
1482 if (!((config_bands | priv->adapter->fw_bands) &
1483 ~priv->adapter->fw_bands))
1484 priv->adapter->config_bands = config_bands;
1485
1486 mwifiex_set_uap_rates(bss_cfg, params);
1487 mwifiex_send_domain_info_cmd_fw(wiphy);
1488
1489 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1490 kfree(bss_cfg);
1491 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1492 return -1;
1493 }
1494
1495 mwifiex_set_ht_params(priv, bss_cfg, params);
1496
1497 if (priv->adapter->is_hw_11ac_capable) {
1498 mwifiex_set_vht_params(priv, bss_cfg, params);
1499 mwifiex_set_vht_width(priv, params->chandef.width,
1500 priv->ap_11ac_enabled);
1501 }
1502
1503 if (priv->ap_11ac_enabled)
1504 mwifiex_set_11ac_ba_params(priv);
1505 else
1506 mwifiex_set_ba_params(priv);
1507
1508 mwifiex_set_wmm_params(priv, bss_cfg, params);
1509
1510 if (params->inactivity_timeout > 0) {
1511 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1512 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1513 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1514 }
1515
1516 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1517 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1518 wiphy_err(wiphy, "Failed to stop the BSS\n");
1519 kfree(bss_cfg);
1520 return -1;
1521 }
1522
1523 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1524 HostCmd_ACT_GEN_SET,
1525 UAP_BSS_PARAMS_I, bss_cfg, false)) {
1526 wiphy_err(wiphy, "Failed to set the SSID\n");
1527 kfree(bss_cfg);
1528 return -1;
1529 }
1530
1531 kfree(bss_cfg);
1532
1533 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1534 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1535 wiphy_err(wiphy, "Failed to start the BSS\n");
1536 return -1;
1537 }
1538
1539 if (priv->sec_info.wep_enabled)
1540 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1541 else
1542 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1543
1544 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1545 HostCmd_ACT_GEN_SET, 0,
1546 &priv->curr_pkt_filter, true))
1547 return -1;
1548
1549 return 0;
1550 }
1551
1552 /*
1553 * CFG802.11 operation handler for disconnection request.
1554 *
1555 * This function does not work when there is already a disconnection
1556 * procedure going on.
1557 */
1558 static int
1559 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1560 u16 reason_code)
1561 {
1562 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1563
1564 if (mwifiex_deauthenticate(priv, NULL))
1565 return -EFAULT;
1566
1567 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1568 " reason code %d\n", priv->cfg_bssid, reason_code);
1569
1570 memset(priv->cfg_bssid, 0, ETH_ALEN);
1571 priv->hs2_enabled = false;
1572
1573 return 0;
1574 }
1575
1576 /*
1577 * This function informs the CFG802.11 subsystem of a new IBSS.
1578 *
1579 * The following information are sent to the CFG802.11 subsystem
1580 * to register the new IBSS. If we do not register the new IBSS,
1581 * a kernel panic will result.
1582 * - SSID
1583 * - SSID length
1584 * - BSSID
1585 * - Channel
1586 */
1587 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1588 {
1589 struct ieee80211_channel *chan;
1590 struct mwifiex_bss_info bss_info;
1591 struct cfg80211_bss *bss;
1592 int ie_len;
1593 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1594 enum ieee80211_band band;
1595
1596 if (mwifiex_get_bss_info(priv, &bss_info))
1597 return -1;
1598
1599 ie_buf[0] = WLAN_EID_SSID;
1600 ie_buf[1] = bss_info.ssid.ssid_len;
1601
1602 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1603 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1604 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1605
1606 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1607 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1608 ieee80211_channel_to_frequency(bss_info.bss_chan,
1609 band));
1610
1611 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1612 CFG80211_BSS_FTYPE_UNKNOWN,
1613 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1614 0, ie_buf, ie_len, 0, GFP_KERNEL);
1615 cfg80211_put_bss(priv->wdev->wiphy, bss);
1616 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1617
1618 return 0;
1619 }
1620
1621 /*
1622 * This function connects with a BSS.
1623 *
1624 * This function handles both Infra and Ad-Hoc modes. It also performs
1625 * validity checking on the provided parameters, disconnects from the
1626 * current BSS (if any), sets up the association/scan parameters,
1627 * including security settings, and performs specific SSID scan before
1628 * trying to connect.
1629 *
1630 * For Infra mode, the function returns failure if the specified SSID
1631 * is not found in scan table. However, for Ad-Hoc mode, it can create
1632 * the IBSS if it does not exist. On successful completion in either case,
1633 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1634 */
1635 static int
1636 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1637 const u8 *ssid, const u8 *bssid, int mode,
1638 struct ieee80211_channel *channel,
1639 struct cfg80211_connect_params *sme, bool privacy)
1640 {
1641 struct cfg80211_ssid req_ssid;
1642 int ret, auth_type = 0;
1643 struct cfg80211_bss *bss = NULL;
1644 u8 is_scanning_required = 0;
1645
1646 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1647
1648 req_ssid.ssid_len = ssid_len;
1649 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1650 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1651 return -EINVAL;
1652 }
1653
1654 memcpy(req_ssid.ssid, ssid, ssid_len);
1655 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1656 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1657 return -EINVAL;
1658 }
1659
1660 /* As this is new association, clear locally stored
1661 * keys and security related flags */
1662 priv->sec_info.wpa_enabled = false;
1663 priv->sec_info.wpa2_enabled = false;
1664 priv->wep_key_curr_index = 0;
1665 priv->sec_info.encryption_mode = 0;
1666 priv->sec_info.is_authtype_auto = 0;
1667 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1668
1669 if (mode == NL80211_IFTYPE_ADHOC) {
1670 /* "privacy" is set only for ad-hoc mode */
1671 if (privacy) {
1672 /*
1673 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1674 * the firmware can find a matching network from the
1675 * scan. The cfg80211 does not give us the encryption
1676 * mode at this stage so just setting it to WEP here.
1677 */
1678 priv->sec_info.encryption_mode =
1679 WLAN_CIPHER_SUITE_WEP104;
1680 priv->sec_info.authentication_mode =
1681 NL80211_AUTHTYPE_OPEN_SYSTEM;
1682 }
1683
1684 goto done;
1685 }
1686
1687 /* Now handle infra mode. "sme" is valid for infra mode only */
1688 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1689 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1690 priv->sec_info.is_authtype_auto = 1;
1691 } else {
1692 auth_type = sme->auth_type;
1693 }
1694
1695 if (sme->crypto.n_ciphers_pairwise) {
1696 priv->sec_info.encryption_mode =
1697 sme->crypto.ciphers_pairwise[0];
1698 priv->sec_info.authentication_mode = auth_type;
1699 }
1700
1701 if (sme->crypto.cipher_group) {
1702 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1703 priv->sec_info.authentication_mode = auth_type;
1704 }
1705 if (sme->ie)
1706 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1707
1708 if (sme->key) {
1709 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1710 dev_dbg(priv->adapter->dev,
1711 "info: setting wep encryption"
1712 " with key len %d\n", sme->key_len);
1713 priv->wep_key_curr_index = sme->key_idx;
1714 ret = mwifiex_set_encode(priv, NULL, sme->key,
1715 sme->key_len, sme->key_idx,
1716 NULL, 0);
1717 }
1718 }
1719 done:
1720 /*
1721 * Scan entries are valid for some time (15 sec). So we can save one
1722 * active scan time if we just try cfg80211_get_bss first. If it fails
1723 * then request scan and cfg80211_get_bss() again for final output.
1724 */
1725 while (1) {
1726 if (is_scanning_required) {
1727 /* Do specific SSID scanning */
1728 if (mwifiex_request_scan(priv, &req_ssid)) {
1729 dev_err(priv->adapter->dev, "scan error\n");
1730 return -EFAULT;
1731 }
1732 }
1733
1734 /* Find the BSS we want using available scan results */
1735 if (mode == NL80211_IFTYPE_ADHOC)
1736 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1737 bssid, ssid, ssid_len,
1738 WLAN_CAPABILITY_IBSS,
1739 WLAN_CAPABILITY_IBSS);
1740 else
1741 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1742 bssid, ssid, ssid_len,
1743 WLAN_CAPABILITY_ESS,
1744 WLAN_CAPABILITY_ESS);
1745
1746 if (!bss) {
1747 if (is_scanning_required) {
1748 dev_warn(priv->adapter->dev,
1749 "assoc: requested bss not found in scan results\n");
1750 break;
1751 }
1752 is_scanning_required = 1;
1753 } else {
1754 dev_dbg(priv->adapter->dev,
1755 "info: trying to associate to '%s' bssid %pM\n",
1756 (char *) req_ssid.ssid, bss->bssid);
1757 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1758 break;
1759 }
1760 }
1761
1762 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1763 if (ret)
1764 return ret;
1765
1766 if (mode == NL80211_IFTYPE_ADHOC) {
1767 /* Inform the BSS information to kernel, otherwise
1768 * kernel will give a panic after successful assoc */
1769 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1770 return -EFAULT;
1771 }
1772
1773 return ret;
1774 }
1775
1776 /*
1777 * CFG802.11 operation handler for association request.
1778 *
1779 * This function does not work when the current mode is set to Ad-Hoc, or
1780 * when there is already an association procedure going on. The given BSS
1781 * information is used to associate.
1782 */
1783 static int
1784 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1785 struct cfg80211_connect_params *sme)
1786 {
1787 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1788 int ret;
1789
1790 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1791 wiphy_err(wiphy,
1792 "%s: reject infra assoc request in non-STA role\n",
1793 dev->name);
1794 return -EINVAL;
1795 }
1796
1797 if (priv->wdev && priv->wdev->current_bss) {
1798 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1799 return -EALREADY;
1800 }
1801
1802 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1803 (char *) sme->ssid, sme->bssid);
1804
1805 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1806 priv->bss_mode, sme->channel, sme, 0);
1807 if (!ret) {
1808 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1809 NULL, 0, WLAN_STATUS_SUCCESS,
1810 GFP_KERNEL);
1811 dev_dbg(priv->adapter->dev,
1812 "info: associated to bssid %pM successfully\n",
1813 priv->cfg_bssid);
1814 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1815 priv->adapter->auto_tdls &&
1816 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1817 mwifiex_setup_auto_tdls_timer(priv);
1818 } else {
1819 dev_dbg(priv->adapter->dev,
1820 "info: association to bssid %pM failed\n",
1821 priv->cfg_bssid);
1822 memset(priv->cfg_bssid, 0, ETH_ALEN);
1823
1824 if (ret > 0)
1825 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1826 NULL, 0, NULL, 0, ret,
1827 GFP_KERNEL);
1828 else
1829 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1830 NULL, 0, NULL, 0,
1831 WLAN_STATUS_UNSPECIFIED_FAILURE,
1832 GFP_KERNEL);
1833 }
1834
1835 return 0;
1836 }
1837
1838 /*
1839 * This function sets following parameters for ibss network.
1840 * - channel
1841 * - start band
1842 * - 11n flag
1843 * - secondary channel offset
1844 */
1845 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1846 struct cfg80211_ibss_params *params)
1847 {
1848 struct wiphy *wiphy = priv->wdev->wiphy;
1849 struct mwifiex_adapter *adapter = priv->adapter;
1850 int index = 0, i;
1851 u8 config_bands = 0;
1852
1853 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1854 if (!params->basic_rates) {
1855 config_bands = BAND_B | BAND_G;
1856 } else {
1857 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1858 /*
1859 * Rates below 6 Mbps in the table are CCK
1860 * rates; 802.11b and from 6 they are OFDM;
1861 * 802.11G
1862 */
1863 if (mwifiex_rates[i].bitrate == 60) {
1864 index = 1 << i;
1865 break;
1866 }
1867 }
1868
1869 if (params->basic_rates < index) {
1870 config_bands = BAND_B;
1871 } else {
1872 config_bands = BAND_G;
1873 if (params->basic_rates % index)
1874 config_bands |= BAND_B;
1875 }
1876 }
1877
1878 if (cfg80211_get_chandef_type(&params->chandef) !=
1879 NL80211_CHAN_NO_HT)
1880 config_bands |= BAND_G | BAND_GN;
1881 } else {
1882 if (cfg80211_get_chandef_type(&params->chandef) ==
1883 NL80211_CHAN_NO_HT)
1884 config_bands = BAND_A;
1885 else
1886 config_bands = BAND_AN | BAND_A;
1887 }
1888
1889 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1890 adapter->config_bands = config_bands;
1891 adapter->adhoc_start_band = config_bands;
1892
1893 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1894 adapter->adhoc_11n_enabled = true;
1895 else
1896 adapter->adhoc_11n_enabled = false;
1897 }
1898
1899 adapter->sec_chan_offset =
1900 mwifiex_chan_type_to_sec_chan_offset(
1901 cfg80211_get_chandef_type(&params->chandef));
1902 priv->adhoc_channel = ieee80211_frequency_to_channel(
1903 params->chandef.chan->center_freq);
1904
1905 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1906 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1907
1908 return 0;
1909 }
1910
1911 /*
1912 * CFG802.11 operation handler to join an IBSS.
1913 *
1914 * This function does not work in any mode other than Ad-Hoc, or if
1915 * a join operation is already in progress.
1916 */
1917 static int
1918 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1919 struct cfg80211_ibss_params *params)
1920 {
1921 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1922 int ret = 0;
1923
1924 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1925 wiphy_err(wiphy, "request to join ibss received "
1926 "when station is not in ibss mode\n");
1927 goto done;
1928 }
1929
1930 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1931 (char *) params->ssid, params->bssid);
1932
1933 mwifiex_set_ibss_params(priv, params);
1934
1935 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1936 params->bssid, priv->bss_mode,
1937 params->chandef.chan, NULL,
1938 params->privacy);
1939 done:
1940 if (!ret) {
1941 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1942 params->chandef.chan, GFP_KERNEL);
1943 dev_dbg(priv->adapter->dev,
1944 "info: joined/created adhoc network with bssid"
1945 " %pM successfully\n", priv->cfg_bssid);
1946 } else {
1947 dev_dbg(priv->adapter->dev,
1948 "info: failed creating/joining adhoc network\n");
1949 }
1950
1951 return ret;
1952 }
1953
1954 /*
1955 * CFG802.11 operation handler to leave an IBSS.
1956 *
1957 * This function does not work if a leave operation is
1958 * already in progress.
1959 */
1960 static int
1961 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1962 {
1963 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1964
1965 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1966 priv->cfg_bssid);
1967 if (mwifiex_deauthenticate(priv, NULL))
1968 return -EFAULT;
1969
1970 memset(priv->cfg_bssid, 0, ETH_ALEN);
1971
1972 return 0;
1973 }
1974
1975 /*
1976 * CFG802.11 operation handler for scan request.
1977 *
1978 * This function issues a scan request to the firmware based upon
1979 * the user specified scan configuration. On successfull completion,
1980 * it also informs the results.
1981 */
1982 static int
1983 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1984 struct cfg80211_scan_request *request)
1985 {
1986 struct net_device *dev = request->wdev->netdev;
1987 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1988 int i, offset, ret;
1989 struct ieee80211_channel *chan;
1990 struct ieee_types_header *ie;
1991 struct mwifiex_user_scan_cfg *user_scan_cfg;
1992
1993 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1994
1995 /* Block scan request if scan operation or scan cleanup when interface
1996 * is disabled is in process
1997 */
1998 if (priv->scan_request || priv->scan_aborting) {
1999 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2000 return -EBUSY;
2001 }
2002
2003 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2004 if (!user_scan_cfg)
2005 return -ENOMEM;
2006
2007 priv->scan_request = request;
2008
2009 user_scan_cfg->num_ssids = request->n_ssids;
2010 user_scan_cfg->ssid_list = request->ssids;
2011
2012 if (request->ie && request->ie_len) {
2013 offset = 0;
2014 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2015 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2016 continue;
2017 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2018 ie = (struct ieee_types_header *)(request->ie + offset);
2019 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2020 offset += sizeof(*ie) + ie->len;
2021
2022 if (offset >= request->ie_len)
2023 break;
2024 }
2025 }
2026
2027 for (i = 0; i < min_t(u32, request->n_channels,
2028 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2029 chan = request->channels[i];
2030 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2031 user_scan_cfg->chan_list[i].radio_type = chan->band;
2032
2033 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2034 user_scan_cfg->chan_list[i].scan_type =
2035 MWIFIEX_SCAN_TYPE_PASSIVE;
2036 else
2037 user_scan_cfg->chan_list[i].scan_type =
2038 MWIFIEX_SCAN_TYPE_ACTIVE;
2039
2040 user_scan_cfg->chan_list[i].scan_time = 0;
2041 }
2042
2043 if (priv->adapter->scan_chan_gap_enabled &&
2044 mwifiex_is_any_intf_active(priv))
2045 user_scan_cfg->scan_chan_gap =
2046 priv->adapter->scan_chan_gap_time;
2047
2048 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2049 kfree(user_scan_cfg);
2050 if (ret) {
2051 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2052 priv->scan_aborting = false;
2053 priv->scan_request = NULL;
2054 return ret;
2055 }
2056
2057 if (request->ie && request->ie_len) {
2058 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2059 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2060 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2061 memset(&priv->vs_ie[i].ie, 0,
2062 MWIFIEX_MAX_VSIE_LEN);
2063 }
2064 }
2065 }
2066 return 0;
2067 }
2068
2069 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2070 struct mwifiex_private *priv)
2071 {
2072 struct mwifiex_adapter *adapter = priv->adapter;
2073
2074 vht_info->vht_supported = true;
2075
2076 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2077 /* Update MCS support for VHT */
2078 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2079 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2080 vht_info->vht_mcs.rx_highest = 0;
2081 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2082 adapter->hw_dot_11ac_mcs_support >> 16);
2083 vht_info->vht_mcs.tx_highest = 0;
2084 }
2085
2086 /*
2087 * This function sets up the CFG802.11 specific HT capability fields
2088 * with default values.
2089 *
2090 * The following default values are set -
2091 * - HT Supported = True
2092 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2093 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2094 * - HT Capabilities supported by firmware
2095 * - MCS information, Rx mask = 0xff
2096 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2097 */
2098 static void
2099 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2100 struct mwifiex_private *priv)
2101 {
2102 int rx_mcs_supp;
2103 struct ieee80211_mcs_info mcs_set;
2104 u8 *mcs = (u8 *)&mcs_set;
2105 struct mwifiex_adapter *adapter = priv->adapter;
2106
2107 ht_info->ht_supported = true;
2108 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2109 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2110
2111 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2112
2113 /* Fill HT capability information */
2114 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2115 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2116 else
2117 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2118
2119 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2120 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2121 else
2122 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2123
2124 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2125 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2126 else
2127 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2128
2129 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2130 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2131 else
2132 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2133
2134 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2135 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2136 else
2137 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2138
2139 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2140 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2141 else
2142 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2143
2144 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2145 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2146 else
2147 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2148
2149 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2150 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2151 else
2152 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2153
2154 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2155 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2156
2157 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2158 /* Set MCS for 1x1/2x2 */
2159 memset(mcs, 0xff, rx_mcs_supp);
2160 /* Clear all the other values */
2161 memset(&mcs[rx_mcs_supp], 0,
2162 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2163 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2164 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2165 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2166 SETHT_MCS32(mcs_set.rx_mask);
2167
2168 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2169
2170 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2171 }
2172
2173 /*
2174 * create a new virtual interface with the given name
2175 */
2176 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2177 const char *name,
2178 enum nl80211_iftype type,
2179 u32 *flags,
2180 struct vif_params *params)
2181 {
2182 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2183 struct mwifiex_private *priv;
2184 struct net_device *dev;
2185 void *mdev_priv;
2186 struct wireless_dev *wdev;
2187
2188 if (!adapter)
2189 return ERR_PTR(-EFAULT);
2190
2191 switch (type) {
2192 case NL80211_IFTYPE_UNSPECIFIED:
2193 case NL80211_IFTYPE_STATION:
2194 case NL80211_IFTYPE_ADHOC:
2195 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2196 if (priv->bss_mode) {
2197 wiphy_err(wiphy,
2198 "cannot create multiple sta/adhoc ifaces\n");
2199 return ERR_PTR(-EINVAL);
2200 }
2201
2202 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2203 if (!wdev)
2204 return ERR_PTR(-ENOMEM);
2205
2206 wdev->wiphy = wiphy;
2207 priv->wdev = wdev;
2208 wdev->iftype = NL80211_IFTYPE_STATION;
2209
2210 if (type == NL80211_IFTYPE_UNSPECIFIED)
2211 priv->bss_mode = NL80211_IFTYPE_STATION;
2212 else
2213 priv->bss_mode = type;
2214
2215 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2216 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2217 priv->bss_priority = 0;
2218 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2219 priv->bss_num = 0;
2220
2221 break;
2222 case NL80211_IFTYPE_AP:
2223 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2224
2225 if (priv->bss_mode) {
2226 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2227 return ERR_PTR(-EINVAL);
2228 }
2229
2230 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2231 if (!wdev)
2232 return ERR_PTR(-ENOMEM);
2233
2234 priv->wdev = wdev;
2235 wdev->wiphy = wiphy;
2236 wdev->iftype = NL80211_IFTYPE_AP;
2237
2238 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2239 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2240 priv->bss_priority = 0;
2241 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2242 priv->bss_started = 0;
2243 priv->bss_num = 0;
2244 priv->bss_mode = type;
2245
2246 break;
2247 case NL80211_IFTYPE_P2P_CLIENT:
2248 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2249
2250 if (priv->bss_mode) {
2251 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2252 return ERR_PTR(-EINVAL);
2253 }
2254
2255 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2256 if (!wdev)
2257 return ERR_PTR(-ENOMEM);
2258
2259 priv->wdev = wdev;
2260 wdev->wiphy = wiphy;
2261
2262 /* At start-up, wpa_supplicant tries to change the interface
2263 * to NL80211_IFTYPE_STATION if it is not managed mode.
2264 */
2265 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2266 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2267
2268 /* Setting bss_type to P2P tells firmware that this interface
2269 * is receiving P2P peers found during find phase and doing
2270 * action frame handshake.
2271 */
2272 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2273
2274 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2275 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2276 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2277 priv->bss_started = 0;
2278 priv->bss_num = 0;
2279
2280 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2281 wdev = ERR_PTR(-EFAULT);
2282 goto done;
2283 }
2284
2285 break;
2286 default:
2287 wiphy_err(wiphy, "type not supported\n");
2288 return ERR_PTR(-EINVAL);
2289 }
2290
2291 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2292 NET_NAME_UNKNOWN, ether_setup,
2293 IEEE80211_NUM_ACS, 1);
2294 if (!dev) {
2295 wiphy_err(wiphy, "no memory available for netdevice\n");
2296 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2297 wdev = ERR_PTR(-ENOMEM);
2298 goto done;
2299 }
2300
2301 mwifiex_init_priv_params(priv, dev);
2302 priv->netdev = dev;
2303
2304 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2305 if (adapter->is_hw_11ac_capable)
2306 mwifiex_setup_vht_caps(
2307 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2308
2309 if (adapter->config_bands & BAND_A)
2310 mwifiex_setup_ht_caps(
2311 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2312
2313 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2314 mwifiex_setup_vht_caps(
2315 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2316
2317 dev_net_set(dev, wiphy_net(wiphy));
2318 dev->ieee80211_ptr = priv->wdev;
2319 dev->ieee80211_ptr->iftype = priv->bss_mode;
2320 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2321 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2322
2323 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2324 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2325 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2326 dev->ethtool_ops = &mwifiex_ethtool_ops;
2327
2328 mdev_priv = netdev_priv(dev);
2329 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2330
2331 SET_NETDEV_DEV(dev, adapter->dev);
2332
2333 /* Register network device */
2334 if (register_netdevice(dev)) {
2335 wiphy_err(wiphy, "cannot register virtual network device\n");
2336 free_netdev(dev);
2337 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2338 priv->netdev = NULL;
2339 wdev = ERR_PTR(-EFAULT);
2340 goto done;
2341 }
2342
2343 sema_init(&priv->async_sem, 1);
2344
2345 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2346
2347 #ifdef CONFIG_DEBUG_FS
2348 mwifiex_dev_debugfs_init(priv);
2349 #endif
2350
2351 done:
2352 if (IS_ERR(wdev)) {
2353 kfree(priv->wdev);
2354 priv->wdev = NULL;
2355 }
2356
2357 return wdev;
2358 }
2359 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2360
2361 /*
2362 * del_virtual_intf: remove the virtual interface determined by dev
2363 */
2364 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2365 {
2366 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2367
2368 #ifdef CONFIG_DEBUG_FS
2369 mwifiex_dev_debugfs_remove(priv);
2370 #endif
2371
2372 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2373
2374 if (netif_carrier_ok(priv->netdev))
2375 netif_carrier_off(priv->netdev);
2376
2377 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2378 unregister_netdevice(wdev->netdev);
2379
2380 /* Clear the priv in adapter */
2381 priv->netdev->ieee80211_ptr = NULL;
2382 priv->netdev = NULL;
2383 kfree(wdev);
2384 priv->wdev = NULL;
2385
2386 priv->media_connected = false;
2387
2388 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2389
2390 return 0;
2391 }
2392 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2393
2394 static bool
2395 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2396 u8 max_byte_seq)
2397 {
2398 int j, k, valid_byte_cnt = 0;
2399 bool dont_care_byte = false;
2400
2401 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2402 for (k = 0; k < 8; k++) {
2403 if (pat->mask[j] & 1 << k) {
2404 memcpy(byte_seq + valid_byte_cnt,
2405 &pat->pattern[j * 8 + k], 1);
2406 valid_byte_cnt++;
2407 if (dont_care_byte)
2408 return false;
2409 } else {
2410 if (valid_byte_cnt)
2411 dont_care_byte = true;
2412 }
2413
2414 if (valid_byte_cnt > max_byte_seq)
2415 return false;
2416 }
2417 }
2418
2419 byte_seq[max_byte_seq] = valid_byte_cnt;
2420
2421 return true;
2422 }
2423
2424 #ifdef CONFIG_PM
2425 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2426 struct cfg80211_wowlan *wowlan)
2427 {
2428 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2429 struct mwifiex_ds_mef_cfg mef_cfg;
2430 struct mwifiex_mef_entry *mef_entry;
2431 int i, filt_num = 0, ret;
2432 bool first_pat = true;
2433 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2434 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2435 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2436 struct mwifiex_private *priv =
2437 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2438
2439 if (!wowlan) {
2440 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2441 return 0;
2442 }
2443
2444 if (!priv->media_connected) {
2445 dev_warn(adapter->dev,
2446 "Can not configure WOWLAN in disconnected state\n");
2447 return 0;
2448 }
2449
2450 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2451 if (!mef_entry)
2452 return -ENOMEM;
2453
2454 memset(&mef_cfg, 0, sizeof(mef_cfg));
2455 mef_cfg.num_entries = 1;
2456 mef_cfg.mef_entry = mef_entry;
2457 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2458 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2459
2460 for (i = 0; i < wowlan->n_patterns; i++) {
2461 memset(byte_seq, 0, sizeof(byte_seq));
2462 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2463 byte_seq,
2464 MWIFIEX_MEF_MAX_BYTESEQ)) {
2465 wiphy_err(wiphy, "Pattern not supported\n");
2466 kfree(mef_entry);
2467 return -EOPNOTSUPP;
2468 }
2469
2470 if (!wowlan->patterns[i].pkt_offset) {
2471 if (!(byte_seq[0] & 0x01) &&
2472 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2473 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2474 continue;
2475 } else if (is_broadcast_ether_addr(byte_seq)) {
2476 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2477 continue;
2478 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2479 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2480 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2481 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2482 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2483 continue;
2484 }
2485 }
2486
2487 mef_entry->filter[filt_num].repeat = 1;
2488 mef_entry->filter[filt_num].offset =
2489 wowlan->patterns[i].pkt_offset;
2490 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2491 sizeof(byte_seq));
2492 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2493
2494 if (first_pat)
2495 first_pat = false;
2496 else
2497 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2498
2499 filt_num++;
2500 }
2501
2502 if (wowlan->magic_pkt) {
2503 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2504 mef_entry->filter[filt_num].repeat = 16;
2505 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2506 ETH_ALEN);
2507 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2508 ETH_ALEN;
2509 mef_entry->filter[filt_num].offset = 28;
2510 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2511 if (filt_num)
2512 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2513
2514 filt_num++;
2515 mef_entry->filter[filt_num].repeat = 16;
2516 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2517 ETH_ALEN);
2518 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2519 ETH_ALEN;
2520 mef_entry->filter[filt_num].offset = 56;
2521 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2522 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2523 }
2524
2525 if (!mef_cfg.criteria)
2526 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2527 MWIFIEX_CRITERIA_UNICAST |
2528 MWIFIEX_CRITERIA_MULTICAST;
2529
2530 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2531 HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2532
2533 kfree(mef_entry);
2534 return ret;
2535 }
2536
2537 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2538 {
2539 return 0;
2540 }
2541
2542 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2543 bool enabled)
2544 {
2545 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2546
2547 device_set_wakeup_enable(adapter->dev, enabled);
2548 }
2549 #endif
2550
2551 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2552 {
2553 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2554 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2555 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2556
2557 if ((byte_seq[0] & 0x01) &&
2558 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2559 return PACKET_TYPE_UNICAST;
2560 else if (!memcmp(byte_seq, bc_mac, 4))
2561 return PACKET_TYPE_BROADCAST;
2562 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2563 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2564 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2565 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2566 return PACKET_TYPE_MULTICAST;
2567
2568 return 0;
2569 }
2570
2571 static int
2572 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2573 struct cfg80211_coalesce_rules *crule,
2574 struct mwifiex_coalesce_rule *mrule)
2575 {
2576 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2577 struct filt_field_param *param;
2578 int i;
2579
2580 mrule->max_coalescing_delay = crule->delay;
2581
2582 param = mrule->params;
2583
2584 for (i = 0; i < crule->n_patterns; i++) {
2585 memset(byte_seq, 0, sizeof(byte_seq));
2586 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2587 byte_seq,
2588 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2589 dev_err(priv->adapter->dev, "Pattern not supported\n");
2590 return -EOPNOTSUPP;
2591 }
2592
2593 if (!crule->patterns[i].pkt_offset) {
2594 u8 pkt_type;
2595
2596 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2597 if (pkt_type && mrule->pkt_type) {
2598 dev_err(priv->adapter->dev,
2599 "Multiple packet types not allowed\n");
2600 return -EOPNOTSUPP;
2601 } else if (pkt_type) {
2602 mrule->pkt_type = pkt_type;
2603 continue;
2604 }
2605 }
2606
2607 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2608 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2609 else
2610 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2611
2612 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2613 memcpy(param->operand_byte_stream, byte_seq,
2614 param->operand_len);
2615 param->offset = crule->patterns[i].pkt_offset;
2616 param++;
2617
2618 mrule->num_of_fields++;
2619 }
2620
2621 if (!mrule->pkt_type) {
2622 dev_err(priv->adapter->dev,
2623 "Packet type can not be determined\n");
2624 return -EOPNOTSUPP;
2625 }
2626
2627 return 0;
2628 }
2629
2630 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2631 struct cfg80211_coalesce *coalesce)
2632 {
2633 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2634 int i, ret;
2635 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2636 struct mwifiex_private *priv =
2637 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2638
2639 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2640 if (!coalesce) {
2641 dev_dbg(adapter->dev,
2642 "Disable coalesce and reset all previous rules\n");
2643 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2644 HostCmd_ACT_GEN_SET, 0,
2645 &coalesce_cfg, true);
2646 }
2647
2648 coalesce_cfg.num_of_rules = coalesce->n_rules;
2649 for (i = 0; i < coalesce->n_rules; i++) {
2650 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2651 &coalesce_cfg.rule[i]);
2652 if (ret) {
2653 dev_err(priv->adapter->dev,
2654 "Recheck the patterns provided for rule %d\n",
2655 i + 1);
2656 return ret;
2657 }
2658 }
2659
2660 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2661 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2662 }
2663
2664 /* cfg80211 ops handler for tdls_mgmt.
2665 * Function prepares TDLS action frame packets and forwards them to FW
2666 */
2667 static int
2668 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2669 const u8 *peer, u8 action_code, u8 dialog_token,
2670 u16 status_code, u32 peer_capability,
2671 bool initiator, const u8 *extra_ies,
2672 size_t extra_ies_len)
2673 {
2674 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2675 int ret;
2676
2677 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2678 return -ENOTSUPP;
2679
2680 /* make sure we are in station mode and connected */
2681 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2682 return -ENOTSUPP;
2683
2684 switch (action_code) {
2685 case WLAN_TDLS_SETUP_REQUEST:
2686 dev_dbg(priv->adapter->dev,
2687 "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2688 status_code);
2689 mwifiex_add_auto_tdls_peer(priv, peer);
2690 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2691 dialog_token, status_code,
2692 extra_ies, extra_ies_len);
2693 break;
2694 case WLAN_TDLS_SETUP_RESPONSE:
2695 mwifiex_add_auto_tdls_peer(priv, peer);
2696 dev_dbg(priv->adapter->dev,
2697 "Send TDLS Setup Response to %pM status_code=%d\n",
2698 peer, status_code);
2699 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2700 dialog_token, status_code,
2701 extra_ies, extra_ies_len);
2702 break;
2703 case WLAN_TDLS_SETUP_CONFIRM:
2704 dev_dbg(priv->adapter->dev,
2705 "Send TDLS Confirm to %pM status_code=%d\n", peer,
2706 status_code);
2707 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2708 dialog_token, status_code,
2709 extra_ies, extra_ies_len);
2710 break;
2711 case WLAN_TDLS_TEARDOWN:
2712 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2713 peer);
2714 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2715 dialog_token, status_code,
2716 extra_ies, extra_ies_len);
2717 break;
2718 case WLAN_TDLS_DISCOVERY_REQUEST:
2719 dev_dbg(priv->adapter->dev,
2720 "Send TDLS Discovery Request to %pM\n", peer);
2721 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2722 dialog_token, status_code,
2723 extra_ies, extra_ies_len);
2724 break;
2725 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2726 dev_dbg(priv->adapter->dev,
2727 "Send TDLS Discovery Response to %pM\n", peer);
2728 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2729 dialog_token, status_code,
2730 extra_ies, extra_ies_len);
2731 break;
2732 default:
2733 dev_warn(priv->adapter->dev,
2734 "Unknown TDLS mgmt/action frame %pM\n", peer);
2735 ret = -EINVAL;
2736 break;
2737 }
2738
2739 return ret;
2740 }
2741
2742 static int
2743 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2744 const u8 *peer, enum nl80211_tdls_operation action)
2745 {
2746 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2747
2748 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2749 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2750 return -ENOTSUPP;
2751
2752 /* make sure we are in station mode and connected */
2753 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2754 return -ENOTSUPP;
2755
2756 dev_dbg(priv->adapter->dev,
2757 "TDLS peer=%pM, oper=%d\n", peer, action);
2758
2759 switch (action) {
2760 case NL80211_TDLS_ENABLE_LINK:
2761 action = MWIFIEX_TDLS_ENABLE_LINK;
2762 break;
2763 case NL80211_TDLS_DISABLE_LINK:
2764 action = MWIFIEX_TDLS_DISABLE_LINK;
2765 break;
2766 case NL80211_TDLS_TEARDOWN:
2767 /* shouldn't happen!*/
2768 dev_warn(priv->adapter->dev,
2769 "tdls_oper: teardown from driver not supported\n");
2770 return -EINVAL;
2771 case NL80211_TDLS_SETUP:
2772 /* shouldn't happen!*/
2773 dev_warn(priv->adapter->dev,
2774 "tdls_oper: setup from driver not supported\n");
2775 return -EINVAL;
2776 case NL80211_TDLS_DISCOVERY_REQ:
2777 /* shouldn't happen!*/
2778 dev_warn(priv->adapter->dev,
2779 "tdls_oper: discovery from driver not supported\n");
2780 return -EINVAL;
2781 default:
2782 dev_err(priv->adapter->dev,
2783 "tdls_oper: operation not supported\n");
2784 return -ENOTSUPP;
2785 }
2786
2787 return mwifiex_tdls_oper(priv, peer, action);
2788 }
2789
2790 static int
2791 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2792 const u8 *mac, struct station_parameters *params)
2793 {
2794 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2795
2796 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2797 return -ENOTSUPP;
2798
2799 /* make sure we are in station mode and connected */
2800 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2801 return -ENOTSUPP;
2802
2803 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2804 }
2805
2806 static int
2807 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2808 const u8 *mac,
2809 struct station_parameters *params)
2810 {
2811 int ret;
2812 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2813
2814 /* we support change_station handler only for TDLS peers*/
2815 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2816 return -ENOTSUPP;
2817
2818 /* make sure we are in station mode and connected */
2819 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2820 return -ENOTSUPP;
2821
2822 priv->sta_params = params;
2823
2824 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2825 priv->sta_params = NULL;
2826
2827 return ret;
2828 }
2829
2830 /* station cfg80211 operations */
2831 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2832 .add_virtual_intf = mwifiex_add_virtual_intf,
2833 .del_virtual_intf = mwifiex_del_virtual_intf,
2834 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2835 .scan = mwifiex_cfg80211_scan,
2836 .connect = mwifiex_cfg80211_connect,
2837 .disconnect = mwifiex_cfg80211_disconnect,
2838 .get_station = mwifiex_cfg80211_get_station,
2839 .dump_station = mwifiex_cfg80211_dump_station,
2840 .dump_survey = mwifiex_cfg80211_dump_survey,
2841 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2842 .join_ibss = mwifiex_cfg80211_join_ibss,
2843 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2844 .add_key = mwifiex_cfg80211_add_key,
2845 .del_key = mwifiex_cfg80211_del_key,
2846 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2847 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2848 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2849 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2850 .set_default_key = mwifiex_cfg80211_set_default_key,
2851 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2852 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2853 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2854 .start_ap = mwifiex_cfg80211_start_ap,
2855 .stop_ap = mwifiex_cfg80211_stop_ap,
2856 .change_beacon = mwifiex_cfg80211_change_beacon,
2857 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2858 .set_antenna = mwifiex_cfg80211_set_antenna,
2859 .del_station = mwifiex_cfg80211_del_station,
2860 #ifdef CONFIG_PM
2861 .suspend = mwifiex_cfg80211_suspend,
2862 .resume = mwifiex_cfg80211_resume,
2863 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2864 #endif
2865 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2866 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2867 .tdls_oper = mwifiex_cfg80211_tdls_oper,
2868 .add_station = mwifiex_cfg80211_add_station,
2869 .change_station = mwifiex_cfg80211_change_station,
2870 };
2871
2872 #ifdef CONFIG_PM
2873 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2874 .flags = WIPHY_WOWLAN_MAGIC_PKT,
2875 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2876 .pattern_min_len = 1,
2877 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2878 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2879 };
2880 #endif
2881
2882 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2883 {
2884 if (!alpha2 || strlen(alpha2) != 2)
2885 return false;
2886
2887 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2888 return true;
2889
2890 return false;
2891 }
2892
2893 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2894 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2895 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2896 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2897 .pattern_min_len = 1,
2898 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2899 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2900 };
2901
2902 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2903 {
2904 u32 n_channels_bg, n_channels_a = 0;
2905
2906 n_channels_bg = mwifiex_band_2ghz.n_channels;
2907
2908 if (adapter->config_bands & BAND_A)
2909 n_channels_a = mwifiex_band_5ghz.n_channels;
2910
2911 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2912 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2913 adapter->num_in_chan_stats);
2914
2915 if (!adapter->chan_stats)
2916 return -ENOMEM;
2917
2918 return 0;
2919 }
2920
2921 /*
2922 * This function registers the device with CFG802.11 subsystem.
2923 *
2924 * The function creates the wireless device/wiphy, populates it with
2925 * default parameters and handler function pointers, and finally
2926 * registers the device.
2927 */
2928
2929 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2930 {
2931 int ret;
2932 void *wdev_priv;
2933 struct wiphy *wiphy;
2934 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2935 u8 *country_code;
2936 u32 thr, retry;
2937
2938 /* create a new wiphy for use with cfg80211 */
2939 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2940 sizeof(struct mwifiex_adapter *));
2941 if (!wiphy) {
2942 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2943 return -ENOMEM;
2944 }
2945 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2946 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2947 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2948 wiphy->max_remain_on_channel_duration = 5000;
2949 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2950 BIT(NL80211_IFTYPE_ADHOC) |
2951 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2952 BIT(NL80211_IFTYPE_P2P_GO) |
2953 BIT(NL80211_IFTYPE_AP);
2954
2955 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2956 if (adapter->config_bands & BAND_A)
2957 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2958 else
2959 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2960
2961 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2962 wiphy->n_iface_combinations = 1;
2963
2964 /* Initialize cipher suits */
2965 wiphy->cipher_suites = mwifiex_cipher_suites;
2966 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2967
2968 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2969 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2970 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2971 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2972 WIPHY_FLAG_AP_UAPSD |
2973 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2974
2975 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2976 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2977 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2978
2979 #ifdef CONFIG_PM
2980 wiphy->wowlan = &mwifiex_wowlan_support;
2981 #endif
2982
2983 wiphy->coalesce = &mwifiex_coalesce_support;
2984
2985 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2986 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2987 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2988
2989 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2990 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2991
2992 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2993 NL80211_FEATURE_INACTIVITY_TIMER |
2994 NL80211_FEATURE_NEED_OBSS_SCAN;
2995
2996 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
2997 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
2998
2999 /* Reserve space for mwifiex specific private data for BSS */
3000 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3001
3002 wiphy->reg_notifier = mwifiex_reg_notifier;
3003
3004 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3005 wdev_priv = wiphy_priv(wiphy);
3006 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3007
3008 set_wiphy_dev(wiphy, priv->adapter->dev);
3009
3010 ret = wiphy_register(wiphy);
3011 if (ret < 0) {
3012 dev_err(adapter->dev,
3013 "%s: wiphy_register failed: %d\n", __func__, ret);
3014 wiphy_free(wiphy);
3015 return ret;
3016 }
3017
3018 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3019 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3020 regulatory_hint(wiphy, reg_alpha2);
3021 } else {
3022 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3023 if (country_code)
3024 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3025 country_code);
3026 }
3027
3028 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3029 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3030 wiphy->frag_threshold = thr;
3031 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3032 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3033 wiphy->rts_threshold = thr;
3034 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3035 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3036 wiphy->retry_short = (u8) retry;
3037 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3038 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3039 wiphy->retry_long = (u8) retry;
3040
3041 adapter->wiphy = wiphy;
3042 return ret;
3043 }
Linux kernel - Deliverables
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