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