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Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011-2014, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20 #include "cfg80211.h"
21 #include "main.h"
22
23 static char *reg_alpha2;
24 module_param(reg_alpha2, charp, 0);
25
26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
27 {
28 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
29 BIT(NL80211_IFTYPE_P2P_GO) |
30 BIT(NL80211_IFTYPE_P2P_CLIENT),
31 },
32 {
33 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
34 },
35 };
36
37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
38 .limits = mwifiex_ap_sta_limits,
39 .num_different_channels = 1,
40 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
41 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
42 .beacon_int_infra_match = true,
43 };
44
45 /*
46 * This function maps the nl802.11 channel type into driver channel type.
47 *
48 * The mapping is as follows -
49 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
50 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
51 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
52 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
53 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
54 */
55 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
56 {
57 switch (chan_type) {
58 case NL80211_CHAN_NO_HT:
59 case NL80211_CHAN_HT20:
60 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
61 case NL80211_CHAN_HT40PLUS:
62 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
63 case NL80211_CHAN_HT40MINUS:
64 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
65 default:
66 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
67 }
68 }
69
70 /*
71 * This function checks whether WEP is set.
72 */
73 static int
74 mwifiex_is_alg_wep(u32 cipher)
75 {
76 switch (cipher) {
77 case WLAN_CIPHER_SUITE_WEP40:
78 case WLAN_CIPHER_SUITE_WEP104:
79 return 1;
80 default:
81 break;
82 }
83
84 return 0;
85 }
86
87 /*
88 * This function retrieves the private structure from kernel wiphy structure.
89 */
90 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
91 {
92 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
93 }
94
95 /*
96 * CFG802.11 operation handler to delete a network key.
97 */
98 static int
99 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
100 u8 key_index, bool pairwise, const u8 *mac_addr)
101 {
102 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
103 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
104 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
105
106 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
107 wiphy_err(wiphy, "deleting the crypto keys\n");
108 return -EFAULT;
109 }
110
111 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
112 return 0;
113 }
114
115 /*
116 * This function forms an skb for management frame.
117 */
118 static int
119 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
120 {
121 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
122 u16 pkt_len;
123 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
124
125 pkt_len = len + ETH_ALEN;
126
127 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
128 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
129 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
130
131 memcpy(skb_push(skb, sizeof(tx_control)),
132 &tx_control, sizeof(tx_control));
133
134 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
135
136 /* Add packet data and address4 */
137 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
138 sizeof(struct ieee80211_hdr_3addr));
139 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
140 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
141 buf + sizeof(struct ieee80211_hdr_3addr),
142 len - sizeof(struct ieee80211_hdr_3addr));
143
144 skb->priority = LOW_PRIO_TID;
145 __net_timestamp(skb);
146
147 return 0;
148 }
149
150 /*
151 * CFG802.11 operation handler to transmit a management frame.
152 */
153 static int
154 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
155 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
156 {
157 const u8 *buf = params->buf;
158 size_t len = params->len;
159 struct sk_buff *skb;
160 u16 pkt_len;
161 const struct ieee80211_mgmt *mgmt;
162 struct mwifiex_txinfo *tx_info;
163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
164
165 if (!buf || !len) {
166 wiphy_err(wiphy, "invalid buffer and length\n");
167 return -EFAULT;
168 }
169
170 mgmt = (const struct ieee80211_mgmt *)buf;
171 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
172 ieee80211_is_probe_resp(mgmt->frame_control)) {
173 /* Since we support offload probe resp, we need to skip probe
174 * resp in AP or GO mode */
175 wiphy_dbg(wiphy,
176 "info: skip to send probe resp in AP or GO mode\n");
177 return 0;
178 }
179
180 pkt_len = len + ETH_ALEN;
181 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
182 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
183 pkt_len + sizeof(pkt_len));
184
185 if (!skb) {
186 wiphy_err(wiphy, "allocate skb failed for management frame\n");
187 return -ENOMEM;
188 }
189
190 tx_info = MWIFIEX_SKB_TXCB(skb);
191 memset(tx_info, 0, sizeof(*tx_info));
192 tx_info->bss_num = priv->bss_num;
193 tx_info->bss_type = priv->bss_type;
194 tx_info->pkt_len = pkt_len;
195
196 mwifiex_form_mgmt_frame(skb, buf, len);
197 *cookie = prandom_u32() | 1;
198
199 if (ieee80211_is_action(mgmt->frame_control))
200 skb = mwifiex_clone_skb_for_tx_status(priv,
201 skb,
202 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
203 else
204 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
205 GFP_ATOMIC);
206
207 mwifiex_queue_tx_pkt(priv, skb);
208
209 wiphy_dbg(wiphy, "info: management frame transmitted\n");
210 return 0;
211 }
212
213 /*
214 * CFG802.11 operation handler to register a mgmt frame.
215 */
216 static void
217 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
218 struct wireless_dev *wdev,
219 u16 frame_type, bool reg)
220 {
221 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
222 u32 mask;
223
224 if (reg)
225 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
226 else
227 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
228
229 if (mask != priv->mgmt_frame_mask) {
230 priv->mgmt_frame_mask = mask;
231 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
232 HostCmd_ACT_GEN_SET, 0,
233 &priv->mgmt_frame_mask, false);
234 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
235 }
236 }
237
238 /*
239 * CFG802.11 operation handler to remain on channel.
240 */
241 static int
242 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
243 struct wireless_dev *wdev,
244 struct ieee80211_channel *chan,
245 unsigned int duration, u64 *cookie)
246 {
247 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
248 int ret;
249
250 if (!chan || !cookie) {
251 wiphy_err(wiphy, "Invalid parameter for ROC\n");
252 return -EINVAL;
253 }
254
255 if (priv->roc_cfg.cookie) {
256 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llx\n",
257 priv->roc_cfg.cookie);
258 return -EBUSY;
259 }
260
261 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
262 duration);
263
264 if (!ret) {
265 *cookie = prandom_u32() | 1;
266 priv->roc_cfg.cookie = *cookie;
267 priv->roc_cfg.chan = *chan;
268
269 cfg80211_ready_on_channel(wdev, *cookie, chan,
270 duration, GFP_ATOMIC);
271
272 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
273 }
274
275 return ret;
276 }
277
278 /*
279 * CFG802.11 operation handler to cancel remain on channel.
280 */
281 static int
282 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
283 struct wireless_dev *wdev, u64 cookie)
284 {
285 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
286 int ret;
287
288 if (cookie != priv->roc_cfg.cookie)
289 return -ENOENT;
290
291 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
292 &priv->roc_cfg.chan, 0);
293
294 if (!ret) {
295 cfg80211_remain_on_channel_expired(wdev, cookie,
296 &priv->roc_cfg.chan,
297 GFP_ATOMIC);
298
299 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
300
301 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
302 }
303
304 return ret;
305 }
306
307 /*
308 * CFG802.11 operation handler to set Tx power.
309 */
310 static int
311 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
312 struct wireless_dev *wdev,
313 enum nl80211_tx_power_setting type,
314 int mbm)
315 {
316 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
317 struct mwifiex_private *priv;
318 struct mwifiex_power_cfg power_cfg;
319 int dbm = MBM_TO_DBM(mbm);
320
321 if (type == NL80211_TX_POWER_FIXED) {
322 power_cfg.is_power_auto = 0;
323 power_cfg.power_level = dbm;
324 } else {
325 power_cfg.is_power_auto = 1;
326 }
327
328 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
329
330 return mwifiex_set_tx_power(priv, &power_cfg);
331 }
332
333 /*
334 * CFG802.11 operation handler to set Power Save option.
335 *
336 * The timeout value, if provided, is currently ignored.
337 */
338 static int
339 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
340 struct net_device *dev,
341 bool enabled, int timeout)
342 {
343 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
344 u32 ps_mode;
345
346 if (timeout)
347 wiphy_dbg(wiphy,
348 "info: ignore timeout value for IEEE Power Save\n");
349
350 ps_mode = enabled;
351
352 return mwifiex_drv_set_power(priv, &ps_mode);
353 }
354
355 /*
356 * CFG802.11 operation handler to set the default network key.
357 */
358 static int
359 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
360 u8 key_index, bool unicast,
361 bool multicast)
362 {
363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
364
365 /* Return if WEP key not configured */
366 if (!priv->sec_info.wep_enabled)
367 return 0;
368
369 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
370 priv->wep_key_curr_index = key_index;
371 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
372 NULL, 0)) {
373 wiphy_err(wiphy, "set default Tx key index\n");
374 return -EFAULT;
375 }
376
377 return 0;
378 }
379
380 /*
381 * CFG802.11 operation handler to add a network key.
382 */
383 static int
384 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
385 u8 key_index, bool pairwise, const u8 *mac_addr,
386 struct key_params *params)
387 {
388 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
389 struct mwifiex_wep_key *wep_key;
390 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
391 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
392
393 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
394 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
395 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
396 if (params->key && params->key_len) {
397 wep_key = &priv->wep_key[key_index];
398 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
399 memcpy(wep_key->key_material, params->key,
400 params->key_len);
401 wep_key->key_index = key_index;
402 wep_key->key_length = params->key_len;
403 priv->sec_info.wep_enabled = 1;
404 }
405 return 0;
406 }
407
408 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
409 key_index, peer_mac, 0)) {
410 wiphy_err(wiphy, "crypto keys added\n");
411 return -EFAULT;
412 }
413
414 return 0;
415 }
416
417 /*
418 * This function sends domain information to the firmware.
419 *
420 * The following information are passed to the firmware -
421 * - Country codes
422 * - Sub bands (first channel, number of channels, maximum Tx power)
423 */
424 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
425 {
426 u8 no_of_triplet = 0;
427 struct ieee80211_country_ie_triplet *t;
428 u8 no_of_parsed_chan = 0;
429 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
430 u8 i, flag = 0;
431 enum ieee80211_band band;
432 struct ieee80211_supported_band *sband;
433 struct ieee80211_channel *ch;
434 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
435 struct mwifiex_private *priv;
436 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
437
438 /* Set country code */
439 domain_info->country_code[0] = adapter->country_code[0];
440 domain_info->country_code[1] = adapter->country_code[1];
441 domain_info->country_code[2] = ' ';
442
443 band = mwifiex_band_to_radio_type(adapter->config_bands);
444 if (!wiphy->bands[band]) {
445 wiphy_err(wiphy, "11D: setting domain info in FW\n");
446 return -1;
447 }
448
449 sband = wiphy->bands[band];
450
451 for (i = 0; i < sband->n_channels ; i++) {
452 ch = &sband->channels[i];
453 if (ch->flags & IEEE80211_CHAN_DISABLED)
454 continue;
455
456 if (!flag) {
457 flag = 1;
458 first_chan = (u32) ch->hw_value;
459 next_chan = first_chan;
460 max_pwr = ch->max_power;
461 no_of_parsed_chan = 1;
462 continue;
463 }
464
465 if (ch->hw_value == next_chan + 1 &&
466 ch->max_power == max_pwr) {
467 next_chan++;
468 no_of_parsed_chan++;
469 } else {
470 t = &domain_info->triplet[no_of_triplet];
471 t->chans.first_channel = first_chan;
472 t->chans.num_channels = no_of_parsed_chan;
473 t->chans.max_power = max_pwr;
474 no_of_triplet++;
475 first_chan = (u32) ch->hw_value;
476 next_chan = first_chan;
477 max_pwr = ch->max_power;
478 no_of_parsed_chan = 1;
479 }
480 }
481
482 if (flag) {
483 t = &domain_info->triplet[no_of_triplet];
484 t->chans.first_channel = first_chan;
485 t->chans.num_channels = no_of_parsed_chan;
486 t->chans.max_power = max_pwr;
487 no_of_triplet++;
488 }
489
490 domain_info->no_of_triplet = no_of_triplet;
491
492 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
493
494 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
495 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
496 wiphy_err(wiphy, "11D: setting domain info in FW\n");
497 return -1;
498 }
499
500 return 0;
501 }
502
503 /*
504 * CFG802.11 regulatory domain callback function.
505 *
506 * This function is called when the regulatory domain is changed due to the
507 * following reasons -
508 * - Set by driver
509 * - Set by system core
510 * - Set by user
511 * - Set bt Country IE
512 */
513 static void mwifiex_reg_notifier(struct wiphy *wiphy,
514 struct regulatory_request *request)
515 {
516 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
517 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
518 MWIFIEX_BSS_ROLE_ANY);
519
520 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
521 request->alpha2[0], request->alpha2[1]);
522
523 switch (request->initiator) {
524 case NL80211_REGDOM_SET_BY_DRIVER:
525 case NL80211_REGDOM_SET_BY_CORE:
526 case NL80211_REGDOM_SET_BY_USER:
527 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
528 break;
529 default:
530 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
531 request->initiator);
532 return;
533 }
534
535 /* Don't send world or same regdom info to firmware */
536 if (strncmp(request->alpha2, "00", 2) &&
537 strncmp(request->alpha2, adapter->country_code,
538 sizeof(request->alpha2))) {
539 memcpy(adapter->country_code, request->alpha2,
540 sizeof(request->alpha2));
541 mwifiex_send_domain_info_cmd_fw(wiphy);
542 mwifiex_dnld_txpwr_table(priv);
543 }
544 }
545
546 /*
547 * This function sets the fragmentation threshold.
548 *
549 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
550 * and MWIFIEX_FRAG_MAX_VALUE.
551 */
552 static int
553 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
554 {
555 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
556 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
557 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
558
559 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
560 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
561 &frag_thr, true);
562 }
563
564 /*
565 * This function sets the RTS threshold.
566
567 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
568 * and MWIFIEX_RTS_MAX_VALUE.
569 */
570 static int
571 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
572 {
573 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
574 rts_thr = MWIFIEX_RTS_MAX_VALUE;
575
576 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
577 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
578 &rts_thr, true);
579 }
580
581 /*
582 * CFG802.11 operation handler to set wiphy parameters.
583 *
584 * This function can be used to set the RTS threshold and the
585 * Fragmentation threshold of the driver.
586 */
587 static int
588 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
589 {
590 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
591 struct mwifiex_private *priv;
592 struct mwifiex_uap_bss_param *bss_cfg;
593 int ret, bss_started, i;
594
595 for (i = 0; i < adapter->priv_num; i++) {
596 priv = adapter->priv[i];
597
598 switch (priv->bss_role) {
599 case MWIFIEX_BSS_ROLE_UAP:
600 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
601 GFP_KERNEL);
602 if (!bss_cfg)
603 return -ENOMEM;
604
605 mwifiex_set_sys_config_invalid_data(bss_cfg);
606
607 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
608 bss_cfg->rts_threshold = wiphy->rts_threshold;
609 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
610 bss_cfg->frag_threshold = wiphy->frag_threshold;
611 if (changed & WIPHY_PARAM_RETRY_LONG)
612 bss_cfg->retry_limit = wiphy->retry_long;
613
614 bss_started = priv->bss_started;
615
616 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
617 HostCmd_ACT_GEN_SET, 0,
618 NULL, true);
619 if (ret) {
620 wiphy_err(wiphy, "Failed to stop the BSS\n");
621 kfree(bss_cfg);
622 return ret;
623 }
624
625 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
626 HostCmd_ACT_GEN_SET,
627 UAP_BSS_PARAMS_I, bss_cfg,
628 false);
629
630 kfree(bss_cfg);
631
632 if (ret) {
633 wiphy_err(wiphy, "Failed to set bss config\n");
634 return ret;
635 }
636
637 if (!bss_started)
638 break;
639
640 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
641 HostCmd_ACT_GEN_SET, 0,
642 NULL, false);
643 if (ret) {
644 wiphy_err(wiphy, "Failed to start BSS\n");
645 return ret;
646 }
647
648 break;
649 case MWIFIEX_BSS_ROLE_STA:
650 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
651 ret = mwifiex_set_rts(priv,
652 wiphy->rts_threshold);
653 if (ret)
654 return ret;
655 }
656 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
657 ret = mwifiex_set_frag(priv,
658 wiphy->frag_threshold);
659 if (ret)
660 return ret;
661 }
662 break;
663 }
664 }
665
666 return 0;
667 }
668
669 static int
670 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
671 {
672 u16 mode = P2P_MODE_DISABLE;
673
674 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
675 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
676
677 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
678 HostCmd_ACT_GEN_SET, 0, &mode, true))
679 return -1;
680
681 return 0;
682 }
683
684 /*
685 * This function initializes the functionalities for P2P client.
686 * The P2P client initialization sequence is:
687 * disable -> device -> client
688 */
689 static int
690 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
691 {
692 u16 mode;
693
694 if (mwifiex_cfg80211_deinit_p2p(priv))
695 return -1;
696
697 mode = P2P_MODE_DEVICE;
698 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
699 HostCmd_ACT_GEN_SET, 0, &mode, true))
700 return -1;
701
702 mode = P2P_MODE_CLIENT;
703 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
704 HostCmd_ACT_GEN_SET, 0, &mode, true))
705 return -1;
706
707 return 0;
708 }
709
710 /*
711 * This function initializes the functionalities for P2P GO.
712 * The P2P GO initialization sequence is:
713 * disable -> device -> GO
714 */
715 static int
716 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
717 {
718 u16 mode;
719
720 if (mwifiex_cfg80211_deinit_p2p(priv))
721 return -1;
722
723 mode = P2P_MODE_DEVICE;
724 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
725 HostCmd_ACT_GEN_SET, 0, &mode, true))
726 return -1;
727
728 mode = P2P_MODE_GO;
729 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
730 HostCmd_ACT_GEN_SET, 0, &mode, true))
731 return -1;
732
733 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
734 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
735
736 return 0;
737 }
738
739 /*
740 * CFG802.11 operation handler to change interface type.
741 */
742 static int
743 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
744 struct net_device *dev,
745 enum nl80211_iftype type, u32 *flags,
746 struct vif_params *params)
747 {
748 int ret;
749 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
750
751 switch (dev->ieee80211_ptr->iftype) {
752 case NL80211_IFTYPE_ADHOC:
753 switch (type) {
754 case NL80211_IFTYPE_STATION:
755 break;
756 case NL80211_IFTYPE_UNSPECIFIED:
757 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
758 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
759 return 0;
760 case NL80211_IFTYPE_AP:
761 default:
762 wiphy_err(wiphy, "%s: changing to %d not supported\n",
763 dev->name, type);
764 return -EOPNOTSUPP;
765 }
766 break;
767 case NL80211_IFTYPE_STATION:
768 switch (type) {
769 case NL80211_IFTYPE_ADHOC:
770 break;
771 case NL80211_IFTYPE_P2P_CLIENT:
772 if (mwifiex_cfg80211_init_p2p_client(priv))
773 return -EFAULT;
774 dev->ieee80211_ptr->iftype = type;
775 return 0;
776 case NL80211_IFTYPE_P2P_GO:
777 if (mwifiex_cfg80211_init_p2p_go(priv))
778 return -EFAULT;
779 dev->ieee80211_ptr->iftype = type;
780 return 0;
781 case NL80211_IFTYPE_UNSPECIFIED:
782 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
783 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
784 return 0;
785 case NL80211_IFTYPE_AP:
786 default:
787 wiphy_err(wiphy, "%s: changing to %d not supported\n",
788 dev->name, type);
789 return -EOPNOTSUPP;
790 }
791 break;
792 case NL80211_IFTYPE_AP:
793 switch (type) {
794 case NL80211_IFTYPE_UNSPECIFIED:
795 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
796 case NL80211_IFTYPE_AP: /* This shouldn't happen */
797 return 0;
798 case NL80211_IFTYPE_ADHOC:
799 case NL80211_IFTYPE_STATION:
800 default:
801 wiphy_err(wiphy, "%s: changing to %d not supported\n",
802 dev->name, type);
803 return -EOPNOTSUPP;
804 }
805 break;
806 case NL80211_IFTYPE_P2P_CLIENT:
807 case NL80211_IFTYPE_P2P_GO:
808 switch (type) {
809 case NL80211_IFTYPE_STATION:
810 if (mwifiex_cfg80211_deinit_p2p(priv))
811 return -EFAULT;
812 dev->ieee80211_ptr->iftype = type;
813 return 0;
814 default:
815 return -EOPNOTSUPP;
816 }
817 break;
818 default:
819 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
820 dev->name, dev->ieee80211_ptr->iftype);
821 return -EOPNOTSUPP;
822 }
823
824 dev->ieee80211_ptr->iftype = type;
825 priv->bss_mode = type;
826 mwifiex_deauthenticate(priv, NULL);
827
828 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
829
830 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
831 HostCmd_ACT_GEN_SET, 0, NULL, true);
832
833 return ret;
834 }
835
836 static void
837 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
838 struct rate_info *rate)
839 {
840 struct mwifiex_adapter *adapter = priv->adapter;
841
842 if (adapter->is_hw_11ac_capable) {
843 /* bit[1-0]: 00=LG 01=HT 10=VHT */
844 if (tx_htinfo & BIT(0)) {
845 /* HT */
846 rate->mcs = priv->tx_rate;
847 rate->flags |= RATE_INFO_FLAGS_MCS;
848 }
849 if (tx_htinfo & BIT(1)) {
850 /* VHT */
851 rate->mcs = priv->tx_rate & 0x0F;
852 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
853 }
854
855 if (tx_htinfo & (BIT(1) | BIT(0))) {
856 /* HT or VHT */
857 switch (tx_htinfo & (BIT(3) | BIT(2))) {
858 case 0:
859 /* This will be 20MHz */
860 break;
861 case (BIT(2)):
862 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
863 break;
864 case (BIT(3)):
865 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
866 break;
867 case (BIT(3) | BIT(2)):
868 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
869 break;
870 }
871
872 if (tx_htinfo & BIT(4))
873 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
874
875 if ((priv->tx_rate >> 4) == 1)
876 rate->nss = 2;
877 else
878 rate->nss = 1;
879 }
880 } else {
881 /*
882 * Bit 0 in tx_htinfo indicates that current Tx rate
883 * is 11n rate. Valid MCS index values for us are 0 to 15.
884 */
885 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
886 rate->mcs = priv->tx_rate;
887 rate->flags |= RATE_INFO_FLAGS_MCS;
888 if (tx_htinfo & BIT(1))
889 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
890 if (tx_htinfo & BIT(2))
891 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
892 }
893 }
894 }
895
896 /*
897 * This function dumps the station information on a buffer.
898 *
899 * The following information are shown -
900 * - Total bytes transmitted
901 * - Total bytes received
902 * - Total packets transmitted
903 * - Total packets received
904 * - Signal quality level
905 * - Transmission rate
906 */
907 static int
908 mwifiex_dump_station_info(struct mwifiex_private *priv,
909 struct station_info *sinfo)
910 {
911 u32 rate;
912
913 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
914 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
915 STATION_INFO_TX_BITRATE |
916 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
917
918 /* Get signal information from the firmware */
919 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
920 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
921 dev_err(priv->adapter->dev, "failed to get signal information\n");
922 return -EFAULT;
923 }
924
925 if (mwifiex_drv_get_data_rate(priv, &rate)) {
926 dev_err(priv->adapter->dev, "getting data rate\n");
927 return -EFAULT;
928 }
929
930 /* Get DTIM period information from firmware */
931 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
932 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
933 &priv->dtim_period, true);
934
935 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
936
937 sinfo->signal_avg = priv->bcn_rssi_avg;
938 sinfo->rx_bytes = priv->stats.rx_bytes;
939 sinfo->tx_bytes = priv->stats.tx_bytes;
940 sinfo->rx_packets = priv->stats.rx_packets;
941 sinfo->tx_packets = priv->stats.tx_packets;
942 sinfo->signal = priv->bcn_rssi_avg;
943 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
944 sinfo->txrate.legacy = rate * 5;
945
946 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
947 sinfo->filled |= STATION_INFO_BSS_PARAM;
948 sinfo->bss_param.flags = 0;
949 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
950 WLAN_CAPABILITY_SHORT_PREAMBLE)
951 sinfo->bss_param.flags |=
952 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
953 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
954 WLAN_CAPABILITY_SHORT_SLOT_TIME)
955 sinfo->bss_param.flags |=
956 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
957 sinfo->bss_param.dtim_period = priv->dtim_period;
958 sinfo->bss_param.beacon_interval =
959 priv->curr_bss_params.bss_descriptor.beacon_period;
960 }
961
962 return 0;
963 }
964
965 /*
966 * CFG802.11 operation handler to get station information.
967 *
968 * This function only works in connected mode, and dumps the
969 * requested station information, if available.
970 */
971 static int
972 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
973 const u8 *mac, struct station_info *sinfo)
974 {
975 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
976
977 if (!priv->media_connected)
978 return -ENOENT;
979 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
980 return -ENOENT;
981
982 return mwifiex_dump_station_info(priv, sinfo);
983 }
984
985 /*
986 * CFG802.11 operation handler to dump station information.
987 */
988 static int
989 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
990 int idx, u8 *mac, struct station_info *sinfo)
991 {
992 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
993
994 if (!priv->media_connected || idx)
995 return -ENOENT;
996
997 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
998
999 return mwifiex_dump_station_info(priv, sinfo);
1000 }
1001
1002 static int
1003 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1004 int idx, struct survey_info *survey)
1005 {
1006 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1007 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1008 enum ieee80211_band band;
1009
1010 dev_dbg(priv->adapter->dev, "dump_survey idx=%d\n", idx);
1011
1012 memset(survey, 0, sizeof(struct survey_info));
1013
1014 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1015 priv->media_connected && idx == 0) {
1016 u8 curr_bss_band = priv->curr_bss_params.band;
1017 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1018
1019 band = mwifiex_band_to_radio_type(curr_bss_band);
1020 survey->channel = ieee80211_get_channel(wiphy,
1021 ieee80211_channel_to_frequency(chan, band));
1022
1023 if (priv->bcn_nf_last) {
1024 survey->filled = SURVEY_INFO_NOISE_DBM;
1025 survey->noise = priv->bcn_nf_last;
1026 }
1027 return 0;
1028 }
1029
1030 if (idx >= priv->adapter->num_in_chan_stats)
1031 return -ENOENT;
1032
1033 if (!pchan_stats[idx].cca_scan_dur)
1034 return 0;
1035
1036 band = pchan_stats[idx].bandcfg;
1037 survey->channel = ieee80211_get_channel(wiphy,
1038 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1039 survey->filled = SURVEY_INFO_NOISE_DBM |
1040 SURVEY_INFO_CHANNEL_TIME | SURVEY_INFO_CHANNEL_TIME_BUSY;
1041 survey->noise = pchan_stats[idx].noise;
1042 survey->channel_time = pchan_stats[idx].cca_scan_dur;
1043 survey->channel_time_busy = pchan_stats[idx].cca_busy_dur;
1044
1045 return 0;
1046 }
1047
1048 /* Supported rates to be advertised to the cfg80211 */
1049 static struct ieee80211_rate mwifiex_rates[] = {
1050 {.bitrate = 10, .hw_value = 2, },
1051 {.bitrate = 20, .hw_value = 4, },
1052 {.bitrate = 55, .hw_value = 11, },
1053 {.bitrate = 110, .hw_value = 22, },
1054 {.bitrate = 60, .hw_value = 12, },
1055 {.bitrate = 90, .hw_value = 18, },
1056 {.bitrate = 120, .hw_value = 24, },
1057 {.bitrate = 180, .hw_value = 36, },
1058 {.bitrate = 240, .hw_value = 48, },
1059 {.bitrate = 360, .hw_value = 72, },
1060 {.bitrate = 480, .hw_value = 96, },
1061 {.bitrate = 540, .hw_value = 108, },
1062 };
1063
1064 /* Channel definitions to be advertised to cfg80211 */
1065 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1066 {.center_freq = 2412, .hw_value = 1, },
1067 {.center_freq = 2417, .hw_value = 2, },
1068 {.center_freq = 2422, .hw_value = 3, },
1069 {.center_freq = 2427, .hw_value = 4, },
1070 {.center_freq = 2432, .hw_value = 5, },
1071 {.center_freq = 2437, .hw_value = 6, },
1072 {.center_freq = 2442, .hw_value = 7, },
1073 {.center_freq = 2447, .hw_value = 8, },
1074 {.center_freq = 2452, .hw_value = 9, },
1075 {.center_freq = 2457, .hw_value = 10, },
1076 {.center_freq = 2462, .hw_value = 11, },
1077 {.center_freq = 2467, .hw_value = 12, },
1078 {.center_freq = 2472, .hw_value = 13, },
1079 {.center_freq = 2484, .hw_value = 14, },
1080 };
1081
1082 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1083 .channels = mwifiex_channels_2ghz,
1084 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1085 .bitrates = mwifiex_rates,
1086 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1087 };
1088
1089 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1090 {.center_freq = 5040, .hw_value = 8, },
1091 {.center_freq = 5060, .hw_value = 12, },
1092 {.center_freq = 5080, .hw_value = 16, },
1093 {.center_freq = 5170, .hw_value = 34, },
1094 {.center_freq = 5190, .hw_value = 38, },
1095 {.center_freq = 5210, .hw_value = 42, },
1096 {.center_freq = 5230, .hw_value = 46, },
1097 {.center_freq = 5180, .hw_value = 36, },
1098 {.center_freq = 5200, .hw_value = 40, },
1099 {.center_freq = 5220, .hw_value = 44, },
1100 {.center_freq = 5240, .hw_value = 48, },
1101 {.center_freq = 5260, .hw_value = 52, },
1102 {.center_freq = 5280, .hw_value = 56, },
1103 {.center_freq = 5300, .hw_value = 60, },
1104 {.center_freq = 5320, .hw_value = 64, },
1105 {.center_freq = 5500, .hw_value = 100, },
1106 {.center_freq = 5520, .hw_value = 104, },
1107 {.center_freq = 5540, .hw_value = 108, },
1108 {.center_freq = 5560, .hw_value = 112, },
1109 {.center_freq = 5580, .hw_value = 116, },
1110 {.center_freq = 5600, .hw_value = 120, },
1111 {.center_freq = 5620, .hw_value = 124, },
1112 {.center_freq = 5640, .hw_value = 128, },
1113 {.center_freq = 5660, .hw_value = 132, },
1114 {.center_freq = 5680, .hw_value = 136, },
1115 {.center_freq = 5700, .hw_value = 140, },
1116 {.center_freq = 5745, .hw_value = 149, },
1117 {.center_freq = 5765, .hw_value = 153, },
1118 {.center_freq = 5785, .hw_value = 157, },
1119 {.center_freq = 5805, .hw_value = 161, },
1120 {.center_freq = 5825, .hw_value = 165, },
1121 };
1122
1123 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1124 .channels = mwifiex_channels_5ghz,
1125 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1126 .bitrates = mwifiex_rates + 4,
1127 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1128 };
1129
1130
1131 /* Supported crypto cipher suits to be advertised to cfg80211 */
1132 static const u32 mwifiex_cipher_suites[] = {
1133 WLAN_CIPHER_SUITE_WEP40,
1134 WLAN_CIPHER_SUITE_WEP104,
1135 WLAN_CIPHER_SUITE_TKIP,
1136 WLAN_CIPHER_SUITE_CCMP,
1137 WLAN_CIPHER_SUITE_AES_CMAC,
1138 };
1139
1140 /* Supported mgmt frame types to be advertised to cfg80211 */
1141 static const struct ieee80211_txrx_stypes
1142 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1143 [NL80211_IFTYPE_STATION] = {
1144 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1146 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1147 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1148 },
1149 [NL80211_IFTYPE_AP] = {
1150 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1151 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1152 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1153 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1154 },
1155 [NL80211_IFTYPE_P2P_CLIENT] = {
1156 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1157 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1158 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1159 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1160 },
1161 [NL80211_IFTYPE_P2P_GO] = {
1162 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1163 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1164 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1165 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1166 },
1167 };
1168
1169 /*
1170 * CFG802.11 operation handler for setting bit rates.
1171 *
1172 * Function configures data rates to firmware using bitrate mask
1173 * provided by cfg80211.
1174 */
1175 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1176 struct net_device *dev,
1177 const u8 *peer,
1178 const struct cfg80211_bitrate_mask *mask)
1179 {
1180 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1181 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1182 enum ieee80211_band band;
1183 struct mwifiex_adapter *adapter = priv->adapter;
1184
1185 if (!priv->media_connected) {
1186 dev_err(adapter->dev,
1187 "Can not set Tx data rate in disconnected state\n");
1188 return -EINVAL;
1189 }
1190
1191 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1192
1193 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1194
1195 /* Fill HR/DSSS rates. */
1196 if (band == IEEE80211_BAND_2GHZ)
1197 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1198
1199 /* Fill OFDM rates */
1200 if (band == IEEE80211_BAND_2GHZ)
1201 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1202 else
1203 bitmap_rates[1] = mask->control[band].legacy;
1204
1205 /* Fill HT MCS rates */
1206 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1207 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1208 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1209
1210 /* Fill VHT MCS rates */
1211 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1212 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1213 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1214 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1215 }
1216
1217 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1218 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1219 }
1220
1221 /*
1222 * CFG802.11 operation handler for connection quality monitoring.
1223 *
1224 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1225 * events to FW.
1226 */
1227 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1228 struct net_device *dev,
1229 s32 rssi_thold, u32 rssi_hyst)
1230 {
1231 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1232 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1233
1234 priv->cqm_rssi_thold = rssi_thold;
1235 priv->cqm_rssi_hyst = rssi_hyst;
1236
1237 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1238 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1239
1240 /* Subscribe/unsubscribe low and high rssi events */
1241 if (rssi_thold && rssi_hyst) {
1242 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1243 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1244 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1245 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1246 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1247 return mwifiex_send_cmd(priv,
1248 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1249 0, 0, &subsc_evt, true);
1250 } else {
1251 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1252 return mwifiex_send_cmd(priv,
1253 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1254 0, 0, &subsc_evt, true);
1255 }
1256
1257 return 0;
1258 }
1259
1260 /* cfg80211 operation handler for change_beacon.
1261 * Function retrieves and sets modified management IEs to FW.
1262 */
1263 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1264 struct net_device *dev,
1265 struct cfg80211_beacon_data *data)
1266 {
1267 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1268
1269 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1270 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1271 return -EINVAL;
1272 }
1273
1274 if (!priv->bss_started) {
1275 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1276 return -EINVAL;
1277 }
1278
1279 if (mwifiex_set_mgmt_ies(priv, data)) {
1280 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1281 return -EFAULT;
1282 }
1283
1284 return 0;
1285 }
1286
1287 /* cfg80211 operation handler for del_station.
1288 * Function deauthenticates station which value is provided in mac parameter.
1289 * If mac is NULL/broadcast, all stations in associated station list are
1290 * deauthenticated. If bss is not started or there are no stations in
1291 * associated stations list, no action is taken.
1292 */
1293 static int
1294 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1295 struct station_del_parameters *params)
1296 {
1297 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1298 struct mwifiex_sta_node *sta_node;
1299 unsigned long flags;
1300
1301 if (list_empty(&priv->sta_list) || !priv->bss_started)
1302 return 0;
1303
1304 if (!params->mac || is_broadcast_ether_addr(params->mac)) {
1305 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1306 list_for_each_entry(sta_node, &priv->sta_list, list) {
1307 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1308 HostCmd_ACT_GEN_SET, 0,
1309 sta_node->mac_addr, true))
1310 return -1;
1311 mwifiex_uap_del_sta_data(priv, sta_node);
1312 }
1313 } else {
1314 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__,
1315 params->mac);
1316 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1317 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1318 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1319 if (sta_node) {
1320 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1321 HostCmd_ACT_GEN_SET, 0,
1322 sta_node->mac_addr, true))
1323 return -1;
1324 mwifiex_uap_del_sta_data(priv, sta_node);
1325 }
1326 }
1327
1328 return 0;
1329 }
1330
1331 static int
1332 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1333 {
1334 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1335 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1336 MWIFIEX_BSS_ROLE_ANY);
1337 struct mwifiex_ds_ant_cfg ant_cfg;
1338
1339 if (!tx_ant || !rx_ant)
1340 return -EOPNOTSUPP;
1341
1342 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1343 /* Not a MIMO chip. User should provide specific antenna number
1344 * for Tx/Rx path or enable all antennas for diversity
1345 */
1346 if (tx_ant != rx_ant)
1347 return -EOPNOTSUPP;
1348
1349 if ((tx_ant & (tx_ant - 1)) &&
1350 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1351 return -EOPNOTSUPP;
1352
1353 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1354 (priv->adapter->number_of_antenna > 1)) {
1355 tx_ant = RF_ANTENNA_AUTO;
1356 rx_ant = RF_ANTENNA_AUTO;
1357 }
1358 } else {
1359 struct ieee80211_sta_ht_cap *ht_info;
1360 int rx_mcs_supp;
1361 enum ieee80211_band band;
1362
1363 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1364 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1365 if (adapter->is_hw_11ac_capable)
1366 adapter->usr_dot_11ac_mcs_support =
1367 MWIFIEX_11AC_MCS_MAP_1X1;
1368 } else {
1369 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1370 if (adapter->is_hw_11ac_capable)
1371 adapter->usr_dot_11ac_mcs_support =
1372 MWIFIEX_11AC_MCS_MAP_2X2;
1373 }
1374
1375 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1376 if (!adapter->wiphy->bands[band])
1377 continue;
1378
1379 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1380 rx_mcs_supp =
1381 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1382 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1383 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1384 }
1385 }
1386
1387 ant_cfg.tx_ant = tx_ant;
1388 ant_cfg.rx_ant = rx_ant;
1389
1390 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1391 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1392 }
1393
1394 /* cfg80211 operation handler for stop ap.
1395 * Function stops BSS running at uAP interface.
1396 */
1397 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1398 {
1399 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1400
1401 if (mwifiex_del_mgmt_ies(priv))
1402 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1403
1404 priv->ap_11n_enabled = 0;
1405
1406 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1407 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1408 wiphy_err(wiphy, "Failed to stop the BSS\n");
1409 return -1;
1410 }
1411
1412 return 0;
1413 }
1414
1415 /* cfg80211 operation handler for start_ap.
1416 * Function sets beacon period, DTIM period, SSID and security into
1417 * AP config structure.
1418 * AP is configured with these settings and BSS is started.
1419 */
1420 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1421 struct net_device *dev,
1422 struct cfg80211_ap_settings *params)
1423 {
1424 struct mwifiex_uap_bss_param *bss_cfg;
1425 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1426 u8 config_bands = 0;
1427
1428 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1429 return -1;
1430 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1431 return -1;
1432
1433 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1434 if (!bss_cfg)
1435 return -ENOMEM;
1436
1437 mwifiex_set_sys_config_invalid_data(bss_cfg);
1438
1439 if (params->beacon_interval)
1440 bss_cfg->beacon_period = params->beacon_interval;
1441 if (params->dtim_period)
1442 bss_cfg->dtim_period = params->dtim_period;
1443
1444 if (params->ssid && params->ssid_len) {
1445 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1446 bss_cfg->ssid.ssid_len = params->ssid_len;
1447 }
1448
1449 switch (params->hidden_ssid) {
1450 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1451 bss_cfg->bcast_ssid_ctl = 1;
1452 break;
1453 case NL80211_HIDDEN_SSID_ZERO_LEN:
1454 bss_cfg->bcast_ssid_ctl = 0;
1455 break;
1456 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1457 /* firmware doesn't support this type of hidden SSID */
1458 default:
1459 kfree(bss_cfg);
1460 return -EINVAL;
1461 }
1462
1463 bss_cfg->channel = ieee80211_frequency_to_channel(
1464 params->chandef.chan->center_freq);
1465
1466 /* Set appropriate bands */
1467 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1468 bss_cfg->band_cfg = BAND_CONFIG_BG;
1469 config_bands = BAND_B | BAND_G;
1470
1471 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1472 config_bands |= BAND_GN;
1473 } else {
1474 bss_cfg->band_cfg = BAND_CONFIG_A;
1475 config_bands = BAND_A;
1476
1477 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1478 config_bands |= BAND_AN;
1479
1480 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1481 config_bands |= BAND_AAC;
1482 }
1483
1484 if (!((config_bands | priv->adapter->fw_bands) &
1485 ~priv->adapter->fw_bands))
1486 priv->adapter->config_bands = config_bands;
1487
1488 mwifiex_set_uap_rates(bss_cfg, params);
1489 mwifiex_send_domain_info_cmd_fw(wiphy);
1490
1491 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1492 kfree(bss_cfg);
1493 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1494 return -1;
1495 }
1496
1497 mwifiex_set_ht_params(priv, bss_cfg, params);
1498
1499 if (priv->adapter->is_hw_11ac_capable) {
1500 mwifiex_set_vht_params(priv, bss_cfg, params);
1501 mwifiex_set_vht_width(priv, params->chandef.width,
1502 priv->ap_11ac_enabled);
1503 }
1504
1505 if (priv->ap_11ac_enabled)
1506 mwifiex_set_11ac_ba_params(priv);
1507 else
1508 mwifiex_set_ba_params(priv);
1509
1510 mwifiex_set_wmm_params(priv, bss_cfg, params);
1511
1512 if (params->inactivity_timeout > 0) {
1513 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1514 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1515 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1516 }
1517
1518 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1519 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1520 wiphy_err(wiphy, "Failed to stop the BSS\n");
1521 kfree(bss_cfg);
1522 return -1;
1523 }
1524
1525 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1526 HostCmd_ACT_GEN_SET,
1527 UAP_BSS_PARAMS_I, bss_cfg, false)) {
1528 wiphy_err(wiphy, "Failed to set the SSID\n");
1529 kfree(bss_cfg);
1530 return -1;
1531 }
1532
1533 kfree(bss_cfg);
1534
1535 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_START,
1536 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
1537 wiphy_err(wiphy, "Failed to start the BSS\n");
1538 return -1;
1539 }
1540
1541 if (priv->sec_info.wep_enabled)
1542 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1543 else
1544 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1545
1546 if (mwifiex_send_cmd(priv, HostCmd_CMD_MAC_CONTROL,
1547 HostCmd_ACT_GEN_SET, 0,
1548 &priv->curr_pkt_filter, true))
1549 return -1;
1550
1551 return 0;
1552 }
1553
1554 /*
1555 * CFG802.11 operation handler for disconnection request.
1556 *
1557 * This function does not work when there is already a disconnection
1558 * procedure going on.
1559 */
1560 static int
1561 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1562 u16 reason_code)
1563 {
1564 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1565
1566 if (mwifiex_deauthenticate(priv, NULL))
1567 return -EFAULT;
1568
1569 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1570 " reason code %d\n", priv->cfg_bssid, reason_code);
1571
1572 memset(priv->cfg_bssid, 0, ETH_ALEN);
1573 priv->hs2_enabled = false;
1574
1575 return 0;
1576 }
1577
1578 /*
1579 * This function informs the CFG802.11 subsystem of a new IBSS.
1580 *
1581 * The following information are sent to the CFG802.11 subsystem
1582 * to register the new IBSS. If we do not register the new IBSS,
1583 * a kernel panic will result.
1584 * - SSID
1585 * - SSID length
1586 * - BSSID
1587 * - Channel
1588 */
1589 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1590 {
1591 struct ieee80211_channel *chan;
1592 struct mwifiex_bss_info bss_info;
1593 struct cfg80211_bss *bss;
1594 int ie_len;
1595 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1596 enum ieee80211_band band;
1597
1598 if (mwifiex_get_bss_info(priv, &bss_info))
1599 return -1;
1600
1601 ie_buf[0] = WLAN_EID_SSID;
1602 ie_buf[1] = bss_info.ssid.ssid_len;
1603
1604 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1605 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1606 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1607
1608 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1609 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1610 ieee80211_channel_to_frequency(bss_info.bss_chan,
1611 band));
1612
1613 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1614 CFG80211_BSS_FTYPE_UNKNOWN,
1615 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1616 0, ie_buf, ie_len, 0, GFP_KERNEL);
1617 cfg80211_put_bss(priv->wdev->wiphy, bss);
1618 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1619
1620 return 0;
1621 }
1622
1623 /*
1624 * This function connects with a BSS.
1625 *
1626 * This function handles both Infra and Ad-Hoc modes. It also performs
1627 * validity checking on the provided parameters, disconnects from the
1628 * current BSS (if any), sets up the association/scan parameters,
1629 * including security settings, and performs specific SSID scan before
1630 * trying to connect.
1631 *
1632 * For Infra mode, the function returns failure if the specified SSID
1633 * is not found in scan table. However, for Ad-Hoc mode, it can create
1634 * the IBSS if it does not exist. On successful completion in either case,
1635 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1636 */
1637 static int
1638 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1639 const u8 *ssid, const u8 *bssid, int mode,
1640 struct ieee80211_channel *channel,
1641 struct cfg80211_connect_params *sme, bool privacy)
1642 {
1643 struct cfg80211_ssid req_ssid;
1644 int ret, auth_type = 0;
1645 struct cfg80211_bss *bss = NULL;
1646 u8 is_scanning_required = 0;
1647
1648 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1649
1650 req_ssid.ssid_len = ssid_len;
1651 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1652 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1653 return -EINVAL;
1654 }
1655
1656 memcpy(req_ssid.ssid, ssid, ssid_len);
1657 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1658 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1659 return -EINVAL;
1660 }
1661
1662 /* As this is new association, clear locally stored
1663 * keys and security related flags */
1664 priv->sec_info.wpa_enabled = false;
1665 priv->sec_info.wpa2_enabled = false;
1666 priv->wep_key_curr_index = 0;
1667 priv->sec_info.encryption_mode = 0;
1668 priv->sec_info.is_authtype_auto = 0;
1669 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1670
1671 if (mode == NL80211_IFTYPE_ADHOC) {
1672 /* "privacy" is set only for ad-hoc mode */
1673 if (privacy) {
1674 /*
1675 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1676 * the firmware can find a matching network from the
1677 * scan. The cfg80211 does not give us the encryption
1678 * mode at this stage so just setting it to WEP here.
1679 */
1680 priv->sec_info.encryption_mode =
1681 WLAN_CIPHER_SUITE_WEP104;
1682 priv->sec_info.authentication_mode =
1683 NL80211_AUTHTYPE_OPEN_SYSTEM;
1684 }
1685
1686 goto done;
1687 }
1688
1689 /* Now handle infra mode. "sme" is valid for infra mode only */
1690 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1691 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1692 priv->sec_info.is_authtype_auto = 1;
1693 } else {
1694 auth_type = sme->auth_type;
1695 }
1696
1697 if (sme->crypto.n_ciphers_pairwise) {
1698 priv->sec_info.encryption_mode =
1699 sme->crypto.ciphers_pairwise[0];
1700 priv->sec_info.authentication_mode = auth_type;
1701 }
1702
1703 if (sme->crypto.cipher_group) {
1704 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1705 priv->sec_info.authentication_mode = auth_type;
1706 }
1707 if (sme->ie)
1708 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1709
1710 if (sme->key) {
1711 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1712 dev_dbg(priv->adapter->dev,
1713 "info: setting wep encryption"
1714 " with key len %d\n", sme->key_len);
1715 priv->wep_key_curr_index = sme->key_idx;
1716 ret = mwifiex_set_encode(priv, NULL, sme->key,
1717 sme->key_len, sme->key_idx,
1718 NULL, 0);
1719 }
1720 }
1721 done:
1722 /*
1723 * Scan entries are valid for some time (15 sec). So we can save one
1724 * active scan time if we just try cfg80211_get_bss first. If it fails
1725 * then request scan and cfg80211_get_bss() again for final output.
1726 */
1727 while (1) {
1728 if (is_scanning_required) {
1729 /* Do specific SSID scanning */
1730 if (mwifiex_request_scan(priv, &req_ssid)) {
1731 dev_err(priv->adapter->dev, "scan error\n");
1732 return -EFAULT;
1733 }
1734 }
1735
1736 /* Find the BSS we want using available scan results */
1737 if (mode == NL80211_IFTYPE_ADHOC)
1738 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1739 bssid, ssid, ssid_len,
1740 WLAN_CAPABILITY_IBSS,
1741 WLAN_CAPABILITY_IBSS);
1742 else
1743 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1744 bssid, ssid, ssid_len,
1745 WLAN_CAPABILITY_ESS,
1746 WLAN_CAPABILITY_ESS);
1747
1748 if (!bss) {
1749 if (is_scanning_required) {
1750 dev_warn(priv->adapter->dev,
1751 "assoc: requested bss not found in scan results\n");
1752 break;
1753 }
1754 is_scanning_required = 1;
1755 } else {
1756 dev_dbg(priv->adapter->dev,
1757 "info: trying to associate to '%s' bssid %pM\n",
1758 (char *) req_ssid.ssid, bss->bssid);
1759 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1760 break;
1761 }
1762 }
1763
1764 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1765 if (ret)
1766 return ret;
1767
1768 if (mode == NL80211_IFTYPE_ADHOC) {
1769 /* Inform the BSS information to kernel, otherwise
1770 * kernel will give a panic after successful assoc */
1771 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1772 return -EFAULT;
1773 }
1774
1775 return ret;
1776 }
1777
1778 /*
1779 * CFG802.11 operation handler for association request.
1780 *
1781 * This function does not work when the current mode is set to Ad-Hoc, or
1782 * when there is already an association procedure going on. The given BSS
1783 * information is used to associate.
1784 */
1785 static int
1786 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1787 struct cfg80211_connect_params *sme)
1788 {
1789 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1790 int ret;
1791
1792 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1793 wiphy_err(wiphy,
1794 "%s: reject infra assoc request in non-STA role\n",
1795 dev->name);
1796 return -EINVAL;
1797 }
1798
1799 if (priv->wdev && priv->wdev->current_bss) {
1800 wiphy_warn(wiphy, "%s: already connected\n", dev->name);
1801 return -EALREADY;
1802 }
1803
1804 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1805 (char *) sme->ssid, sme->bssid);
1806
1807 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1808 priv->bss_mode, sme->channel, sme, 0);
1809 if (!ret) {
1810 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1811 NULL, 0, WLAN_STATUS_SUCCESS,
1812 GFP_KERNEL);
1813 dev_dbg(priv->adapter->dev,
1814 "info: associated to bssid %pM successfully\n",
1815 priv->cfg_bssid);
1816 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1817 priv->adapter->auto_tdls &&
1818 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
1819 mwifiex_setup_auto_tdls_timer(priv);
1820 } else {
1821 dev_dbg(priv->adapter->dev,
1822 "info: association to bssid %pM failed\n",
1823 priv->cfg_bssid);
1824 memset(priv->cfg_bssid, 0, ETH_ALEN);
1825
1826 if (ret > 0)
1827 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1828 NULL, 0, NULL, 0, ret,
1829 GFP_KERNEL);
1830 else
1831 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1832 NULL, 0, NULL, 0,
1833 WLAN_STATUS_UNSPECIFIED_FAILURE,
1834 GFP_KERNEL);
1835 }
1836
1837 return 0;
1838 }
1839
1840 /*
1841 * This function sets following parameters for ibss network.
1842 * - channel
1843 * - start band
1844 * - 11n flag
1845 * - secondary channel offset
1846 */
1847 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1848 struct cfg80211_ibss_params *params)
1849 {
1850 struct wiphy *wiphy = priv->wdev->wiphy;
1851 struct mwifiex_adapter *adapter = priv->adapter;
1852 int index = 0, i;
1853 u8 config_bands = 0;
1854
1855 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1856 if (!params->basic_rates) {
1857 config_bands = BAND_B | BAND_G;
1858 } else {
1859 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1860 /*
1861 * Rates below 6 Mbps in the table are CCK
1862 * rates; 802.11b and from 6 they are OFDM;
1863 * 802.11G
1864 */
1865 if (mwifiex_rates[i].bitrate == 60) {
1866 index = 1 << i;
1867 break;
1868 }
1869 }
1870
1871 if (params->basic_rates < index) {
1872 config_bands = BAND_B;
1873 } else {
1874 config_bands = BAND_G;
1875 if (params->basic_rates % index)
1876 config_bands |= BAND_B;
1877 }
1878 }
1879
1880 if (cfg80211_get_chandef_type(&params->chandef) !=
1881 NL80211_CHAN_NO_HT)
1882 config_bands |= BAND_G | BAND_GN;
1883 } else {
1884 if (cfg80211_get_chandef_type(&params->chandef) ==
1885 NL80211_CHAN_NO_HT)
1886 config_bands = BAND_A;
1887 else
1888 config_bands = BAND_AN | BAND_A;
1889 }
1890
1891 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1892 adapter->config_bands = config_bands;
1893 adapter->adhoc_start_band = config_bands;
1894
1895 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1896 adapter->adhoc_11n_enabled = true;
1897 else
1898 adapter->adhoc_11n_enabled = false;
1899 }
1900
1901 adapter->sec_chan_offset =
1902 mwifiex_chan_type_to_sec_chan_offset(
1903 cfg80211_get_chandef_type(&params->chandef));
1904 priv->adhoc_channel = ieee80211_frequency_to_channel(
1905 params->chandef.chan->center_freq);
1906
1907 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1908 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1909
1910 return 0;
1911 }
1912
1913 /*
1914 * CFG802.11 operation handler to join an IBSS.
1915 *
1916 * This function does not work in any mode other than Ad-Hoc, or if
1917 * a join operation is already in progress.
1918 */
1919 static int
1920 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1921 struct cfg80211_ibss_params *params)
1922 {
1923 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1924 int ret = 0;
1925
1926 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1927 wiphy_err(wiphy, "request to join ibss received "
1928 "when station is not in ibss mode\n");
1929 goto done;
1930 }
1931
1932 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1933 (char *) params->ssid, params->bssid);
1934
1935 mwifiex_set_ibss_params(priv, params);
1936
1937 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1938 params->bssid, priv->bss_mode,
1939 params->chandef.chan, NULL,
1940 params->privacy);
1941 done:
1942 if (!ret) {
1943 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1944 params->chandef.chan, GFP_KERNEL);
1945 dev_dbg(priv->adapter->dev,
1946 "info: joined/created adhoc network with bssid"
1947 " %pM successfully\n", priv->cfg_bssid);
1948 } else {
1949 dev_dbg(priv->adapter->dev,
1950 "info: failed creating/joining adhoc network\n");
1951 }
1952
1953 return ret;
1954 }
1955
1956 /*
1957 * CFG802.11 operation handler to leave an IBSS.
1958 *
1959 * This function does not work if a leave operation is
1960 * already in progress.
1961 */
1962 static int
1963 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1964 {
1965 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1966
1967 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1968 priv->cfg_bssid);
1969 if (mwifiex_deauthenticate(priv, NULL))
1970 return -EFAULT;
1971
1972 memset(priv->cfg_bssid, 0, ETH_ALEN);
1973
1974 return 0;
1975 }
1976
1977 /*
1978 * CFG802.11 operation handler for scan request.
1979 *
1980 * This function issues a scan request to the firmware based upon
1981 * the user specified scan configuration. On successfull completion,
1982 * it also informs the results.
1983 */
1984 static int
1985 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1986 struct cfg80211_scan_request *request)
1987 {
1988 struct net_device *dev = request->wdev->netdev;
1989 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1990 int i, offset, ret;
1991 struct ieee80211_channel *chan;
1992 struct ieee_types_header *ie;
1993 struct mwifiex_user_scan_cfg *user_scan_cfg;
1994
1995 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1996
1997 /* Block scan request if scan operation or scan cleanup when interface
1998 * is disabled is in process
1999 */
2000 if (priv->scan_request || priv->scan_aborting) {
2001 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
2002 return -EBUSY;
2003 }
2004
2005 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2006 if (!user_scan_cfg)
2007 return -ENOMEM;
2008
2009 priv->scan_request = request;
2010
2011 user_scan_cfg->num_ssids = request->n_ssids;
2012 user_scan_cfg->ssid_list = request->ssids;
2013
2014 if (request->ie && request->ie_len) {
2015 offset = 0;
2016 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2017 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2018 continue;
2019 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2020 ie = (struct ieee_types_header *)(request->ie + offset);
2021 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2022 offset += sizeof(*ie) + ie->len;
2023
2024 if (offset >= request->ie_len)
2025 break;
2026 }
2027 }
2028
2029 for (i = 0; i < min_t(u32, request->n_channels,
2030 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2031 chan = request->channels[i];
2032 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2033 user_scan_cfg->chan_list[i].radio_type = chan->band;
2034
2035 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2036 user_scan_cfg->chan_list[i].scan_type =
2037 MWIFIEX_SCAN_TYPE_PASSIVE;
2038 else
2039 user_scan_cfg->chan_list[i].scan_type =
2040 MWIFIEX_SCAN_TYPE_ACTIVE;
2041
2042 user_scan_cfg->chan_list[i].scan_time = 0;
2043 }
2044
2045 if (priv->adapter->scan_chan_gap_enabled &&
2046 mwifiex_is_any_intf_active(priv))
2047 user_scan_cfg->scan_chan_gap =
2048 priv->adapter->scan_chan_gap_time;
2049
2050 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2051 kfree(user_scan_cfg);
2052 if (ret) {
2053 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
2054 priv->scan_aborting = false;
2055 priv->scan_request = NULL;
2056 return ret;
2057 }
2058
2059 if (request->ie && request->ie_len) {
2060 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2061 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2062 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2063 memset(&priv->vs_ie[i].ie, 0,
2064 MWIFIEX_MAX_VSIE_LEN);
2065 }
2066 }
2067 }
2068 return 0;
2069 }
2070
2071 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2072 struct mwifiex_private *priv)
2073 {
2074 struct mwifiex_adapter *adapter = priv->adapter;
2075
2076 vht_info->vht_supported = true;
2077
2078 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2079 /* Update MCS support for VHT */
2080 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2081 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2082 vht_info->vht_mcs.rx_highest = 0;
2083 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2084 adapter->hw_dot_11ac_mcs_support >> 16);
2085 vht_info->vht_mcs.tx_highest = 0;
2086 }
2087
2088 /*
2089 * This function sets up the CFG802.11 specific HT capability fields
2090 * with default values.
2091 *
2092 * The following default values are set -
2093 * - HT Supported = True
2094 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2095 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2096 * - HT Capabilities supported by firmware
2097 * - MCS information, Rx mask = 0xff
2098 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2099 */
2100 static void
2101 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2102 struct mwifiex_private *priv)
2103 {
2104 int rx_mcs_supp;
2105 struct ieee80211_mcs_info mcs_set;
2106 u8 *mcs = (u8 *)&mcs_set;
2107 struct mwifiex_adapter *adapter = priv->adapter;
2108
2109 ht_info->ht_supported = true;
2110 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2111 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2112
2113 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2114
2115 /* Fill HT capability information */
2116 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2117 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2118 else
2119 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2120
2121 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2122 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2123 else
2124 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2125
2126 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2127 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2128 else
2129 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2130
2131 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2132 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2133 else
2134 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2135
2136 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2137 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2138 else
2139 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2140
2141 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2142 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2143 else
2144 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2145
2146 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2147 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2148 else
2149 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2150
2151 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2152 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2153 else
2154 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2155
2156 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2157 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2158
2159 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2160 /* Set MCS for 1x1/2x2 */
2161 memset(mcs, 0xff, rx_mcs_supp);
2162 /* Clear all the other values */
2163 memset(&mcs[rx_mcs_supp], 0,
2164 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2165 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2166 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2167 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2168 SETHT_MCS32(mcs_set.rx_mask);
2169
2170 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2171
2172 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2173 }
2174
2175 /*
2176 * create a new virtual interface with the given name
2177 */
2178 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2179 const char *name,
2180 enum nl80211_iftype type,
2181 u32 *flags,
2182 struct vif_params *params)
2183 {
2184 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2185 struct mwifiex_private *priv;
2186 struct net_device *dev;
2187 void *mdev_priv;
2188 struct wireless_dev *wdev;
2189
2190 if (!adapter)
2191 return ERR_PTR(-EFAULT);
2192
2193 switch (type) {
2194 case NL80211_IFTYPE_UNSPECIFIED:
2195 case NL80211_IFTYPE_STATION:
2196 case NL80211_IFTYPE_ADHOC:
2197 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2198 if (priv->bss_mode) {
2199 wiphy_err(wiphy,
2200 "cannot create multiple sta/adhoc ifaces\n");
2201 return ERR_PTR(-EINVAL);
2202 }
2203
2204 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2205 if (!wdev)
2206 return ERR_PTR(-ENOMEM);
2207
2208 wdev->wiphy = wiphy;
2209 priv->wdev = wdev;
2210 wdev->iftype = NL80211_IFTYPE_STATION;
2211
2212 if (type == NL80211_IFTYPE_UNSPECIFIED)
2213 priv->bss_mode = NL80211_IFTYPE_STATION;
2214 else
2215 priv->bss_mode = type;
2216
2217 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2218 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2219 priv->bss_priority = 0;
2220 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2221 priv->bss_num = 0;
2222
2223 break;
2224 case NL80211_IFTYPE_AP:
2225 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2226
2227 if (priv->bss_mode) {
2228 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2229 return ERR_PTR(-EINVAL);
2230 }
2231
2232 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2233 if (!wdev)
2234 return ERR_PTR(-ENOMEM);
2235
2236 priv->wdev = wdev;
2237 wdev->wiphy = wiphy;
2238 wdev->iftype = NL80211_IFTYPE_AP;
2239
2240 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2241 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2242 priv->bss_priority = 0;
2243 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2244 priv->bss_started = 0;
2245 priv->bss_num = 0;
2246 priv->bss_mode = type;
2247
2248 break;
2249 case NL80211_IFTYPE_P2P_CLIENT:
2250 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2251
2252 if (priv->bss_mode) {
2253 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2254 return ERR_PTR(-EINVAL);
2255 }
2256
2257 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2258 if (!wdev)
2259 return ERR_PTR(-ENOMEM);
2260
2261 priv->wdev = wdev;
2262 wdev->wiphy = wiphy;
2263
2264 /* At start-up, wpa_supplicant tries to change the interface
2265 * to NL80211_IFTYPE_STATION if it is not managed mode.
2266 */
2267 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2268 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2269
2270 /* Setting bss_type to P2P tells firmware that this interface
2271 * is receiving P2P peers found during find phase and doing
2272 * action frame handshake.
2273 */
2274 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2275
2276 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2277 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2278 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2279 priv->bss_started = 0;
2280 priv->bss_num = 0;
2281
2282 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2283 wdev = ERR_PTR(-EFAULT);
2284 goto done;
2285 }
2286
2287 break;
2288 default:
2289 wiphy_err(wiphy, "type not supported\n");
2290 return ERR_PTR(-EINVAL);
2291 }
2292
2293 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2294 NET_NAME_UNKNOWN, ether_setup,
2295 IEEE80211_NUM_ACS, 1);
2296 if (!dev) {
2297 wiphy_err(wiphy, "no memory available for netdevice\n");
2298 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2299 wdev = ERR_PTR(-ENOMEM);
2300 goto done;
2301 }
2302
2303 mwifiex_init_priv_params(priv, dev);
2304 priv->netdev = dev;
2305
2306 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2307 if (adapter->is_hw_11ac_capable)
2308 mwifiex_setup_vht_caps(
2309 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2310
2311 if (adapter->config_bands & BAND_A)
2312 mwifiex_setup_ht_caps(
2313 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2314
2315 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2316 mwifiex_setup_vht_caps(
2317 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2318
2319 dev_net_set(dev, wiphy_net(wiphy));
2320 dev->ieee80211_ptr = priv->wdev;
2321 dev->ieee80211_ptr->iftype = priv->bss_mode;
2322 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2323 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2324
2325 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2326 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2327 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2328 dev->ethtool_ops = &mwifiex_ethtool_ops;
2329
2330 mdev_priv = netdev_priv(dev);
2331 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2332
2333 SET_NETDEV_DEV(dev, adapter->dev);
2334
2335 /* Register network device */
2336 if (register_netdevice(dev)) {
2337 wiphy_err(wiphy, "cannot register virtual network device\n");
2338 free_netdev(dev);
2339 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2340 priv->netdev = NULL;
2341 wdev = ERR_PTR(-EFAULT);
2342 goto done;
2343 }
2344
2345 sema_init(&priv->async_sem, 1);
2346
2347 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2348
2349 #ifdef CONFIG_DEBUG_FS
2350 mwifiex_dev_debugfs_init(priv);
2351 #endif
2352
2353 done:
2354 if (IS_ERR(wdev)) {
2355 kfree(priv->wdev);
2356 priv->wdev = NULL;
2357 }
2358
2359 return wdev;
2360 }
2361 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2362
2363 /*
2364 * del_virtual_intf: remove the virtual interface determined by dev
2365 */
2366 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2367 {
2368 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2369
2370 #ifdef CONFIG_DEBUG_FS
2371 mwifiex_dev_debugfs_remove(priv);
2372 #endif
2373
2374 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2375
2376 if (netif_carrier_ok(priv->netdev))
2377 netif_carrier_off(priv->netdev);
2378
2379 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2380 unregister_netdevice(wdev->netdev);
2381
2382 /* Clear the priv in adapter */
2383 priv->netdev->ieee80211_ptr = NULL;
2384 priv->netdev = NULL;
2385 kfree(wdev);
2386 priv->wdev = NULL;
2387
2388 priv->media_connected = false;
2389
2390 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2391
2392 return 0;
2393 }
2394 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2395
2396 static bool
2397 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2398 u8 max_byte_seq)
2399 {
2400 int j, k, valid_byte_cnt = 0;
2401 bool dont_care_byte = false;
2402
2403 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2404 for (k = 0; k < 8; k++) {
2405 if (pat->mask[j] & 1 << k) {
2406 memcpy(byte_seq + valid_byte_cnt,
2407 &pat->pattern[j * 8 + k], 1);
2408 valid_byte_cnt++;
2409 if (dont_care_byte)
2410 return false;
2411 } else {
2412 if (valid_byte_cnt)
2413 dont_care_byte = true;
2414 }
2415
2416 if (valid_byte_cnt > max_byte_seq)
2417 return false;
2418 }
2419 }
2420
2421 byte_seq[max_byte_seq] = valid_byte_cnt;
2422
2423 return true;
2424 }
2425
2426 #ifdef CONFIG_PM
2427 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2428 struct cfg80211_wowlan *wowlan)
2429 {
2430 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2431 struct mwifiex_ds_mef_cfg mef_cfg;
2432 struct mwifiex_mef_entry *mef_entry;
2433 int i, filt_num = 0, ret;
2434 bool first_pat = true;
2435 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2436 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2437 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2438 struct mwifiex_private *priv =
2439 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2440
2441 if (!wowlan) {
2442 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2443 return 0;
2444 }
2445
2446 if (!priv->media_connected) {
2447 dev_warn(adapter->dev,
2448 "Can not configure WOWLAN in disconnected state\n");
2449 return 0;
2450 }
2451
2452 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2453 if (!mef_entry)
2454 return -ENOMEM;
2455
2456 memset(&mef_cfg, 0, sizeof(mef_cfg));
2457 mef_cfg.num_entries = 1;
2458 mef_cfg.mef_entry = mef_entry;
2459 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2460 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2461
2462 for (i = 0; i < wowlan->n_patterns; i++) {
2463 memset(byte_seq, 0, sizeof(byte_seq));
2464 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2465 byte_seq,
2466 MWIFIEX_MEF_MAX_BYTESEQ)) {
2467 wiphy_err(wiphy, "Pattern not supported\n");
2468 kfree(mef_entry);
2469 return -EOPNOTSUPP;
2470 }
2471
2472 if (!wowlan->patterns[i].pkt_offset) {
2473 if (!(byte_seq[0] & 0x01) &&
2474 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2475 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2476 continue;
2477 } else if (is_broadcast_ether_addr(byte_seq)) {
2478 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2479 continue;
2480 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2481 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2482 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2483 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2484 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2485 continue;
2486 }
2487 }
2488
2489 mef_entry->filter[filt_num].repeat = 1;
2490 mef_entry->filter[filt_num].offset =
2491 wowlan->patterns[i].pkt_offset;
2492 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2493 sizeof(byte_seq));
2494 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2495
2496 if (first_pat)
2497 first_pat = false;
2498 else
2499 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2500
2501 filt_num++;
2502 }
2503
2504 if (wowlan->magic_pkt) {
2505 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
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 = 28;
2512 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2513 if (filt_num)
2514 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2515
2516 filt_num++;
2517 mef_entry->filter[filt_num].repeat = 16;
2518 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2519 ETH_ALEN);
2520 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2521 ETH_ALEN;
2522 mef_entry->filter[filt_num].offset = 56;
2523 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2524 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2525 }
2526
2527 if (!mef_cfg.criteria)
2528 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2529 MWIFIEX_CRITERIA_UNICAST |
2530 MWIFIEX_CRITERIA_MULTICAST;
2531
2532 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
2533 HostCmd_ACT_GEN_SET, 0, &mef_cfg, true);
2534
2535 kfree(mef_entry);
2536 return ret;
2537 }
2538
2539 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2540 {
2541 return 0;
2542 }
2543
2544 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2545 bool enabled)
2546 {
2547 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2548
2549 device_set_wakeup_enable(adapter->dev, enabled);
2550 }
2551 #endif
2552
2553 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2554 {
2555 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2556 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2557 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2558
2559 if ((byte_seq[0] & 0x01) &&
2560 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2561 return PACKET_TYPE_UNICAST;
2562 else if (!memcmp(byte_seq, bc_mac, 4))
2563 return PACKET_TYPE_BROADCAST;
2564 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2565 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2566 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2567 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2568 return PACKET_TYPE_MULTICAST;
2569
2570 return 0;
2571 }
2572
2573 static int
2574 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2575 struct cfg80211_coalesce_rules *crule,
2576 struct mwifiex_coalesce_rule *mrule)
2577 {
2578 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2579 struct filt_field_param *param;
2580 int i;
2581
2582 mrule->max_coalescing_delay = crule->delay;
2583
2584 param = mrule->params;
2585
2586 for (i = 0; i < crule->n_patterns; i++) {
2587 memset(byte_seq, 0, sizeof(byte_seq));
2588 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2589 byte_seq,
2590 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2591 dev_err(priv->adapter->dev, "Pattern not supported\n");
2592 return -EOPNOTSUPP;
2593 }
2594
2595 if (!crule->patterns[i].pkt_offset) {
2596 u8 pkt_type;
2597
2598 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2599 if (pkt_type && mrule->pkt_type) {
2600 dev_err(priv->adapter->dev,
2601 "Multiple packet types not allowed\n");
2602 return -EOPNOTSUPP;
2603 } else if (pkt_type) {
2604 mrule->pkt_type = pkt_type;
2605 continue;
2606 }
2607 }
2608
2609 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2610 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2611 else
2612 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2613
2614 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2615 memcpy(param->operand_byte_stream, byte_seq,
2616 param->operand_len);
2617 param->offset = crule->patterns[i].pkt_offset;
2618 param++;
2619
2620 mrule->num_of_fields++;
2621 }
2622
2623 if (!mrule->pkt_type) {
2624 dev_err(priv->adapter->dev,
2625 "Packet type can not be determined\n");
2626 return -EOPNOTSUPP;
2627 }
2628
2629 return 0;
2630 }
2631
2632 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2633 struct cfg80211_coalesce *coalesce)
2634 {
2635 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2636 int i, ret;
2637 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2638 struct mwifiex_private *priv =
2639 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2640
2641 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2642 if (!coalesce) {
2643 dev_dbg(adapter->dev,
2644 "Disable coalesce and reset all previous rules\n");
2645 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2646 HostCmd_ACT_GEN_SET, 0,
2647 &coalesce_cfg, true);
2648 }
2649
2650 coalesce_cfg.num_of_rules = coalesce->n_rules;
2651 for (i = 0; i < coalesce->n_rules; i++) {
2652 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2653 &coalesce_cfg.rule[i]);
2654 if (ret) {
2655 dev_err(priv->adapter->dev,
2656 "Recheck the patterns provided for rule %d\n",
2657 i + 1);
2658 return ret;
2659 }
2660 }
2661
2662 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
2663 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
2664 }
2665
2666 /* cfg80211 ops handler for tdls_mgmt.
2667 * Function prepares TDLS action frame packets and forwards them to FW
2668 */
2669 static int
2670 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2671 const u8 *peer, u8 action_code, u8 dialog_token,
2672 u16 status_code, u32 peer_capability,
2673 bool initiator, const u8 *extra_ies,
2674 size_t extra_ies_len)
2675 {
2676 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2677 int ret;
2678
2679 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2680 return -ENOTSUPP;
2681
2682 /* make sure we are in station mode and connected */
2683 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2684 return -ENOTSUPP;
2685
2686 switch (action_code) {
2687 case WLAN_TDLS_SETUP_REQUEST:
2688 dev_dbg(priv->adapter->dev,
2689 "Send TDLS Setup Request to %pM status_code=%d\n", peer,
2690 status_code);
2691 mwifiex_add_auto_tdls_peer(priv, peer);
2692 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2693 dialog_token, status_code,
2694 extra_ies, extra_ies_len);
2695 break;
2696 case WLAN_TDLS_SETUP_RESPONSE:
2697 mwifiex_add_auto_tdls_peer(priv, peer);
2698 dev_dbg(priv->adapter->dev,
2699 "Send TDLS Setup Response to %pM status_code=%d\n",
2700 peer, status_code);
2701 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2702 dialog_token, status_code,
2703 extra_ies, extra_ies_len);
2704 break;
2705 case WLAN_TDLS_SETUP_CONFIRM:
2706 dev_dbg(priv->adapter->dev,
2707 "Send TDLS Confirm to %pM status_code=%d\n", peer,
2708 status_code);
2709 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2710 dialog_token, status_code,
2711 extra_ies, extra_ies_len);
2712 break;
2713 case WLAN_TDLS_TEARDOWN:
2714 dev_dbg(priv->adapter->dev, "Send TDLS Tear down to %pM\n",
2715 peer);
2716 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2717 dialog_token, status_code,
2718 extra_ies, extra_ies_len);
2719 break;
2720 case WLAN_TDLS_DISCOVERY_REQUEST:
2721 dev_dbg(priv->adapter->dev,
2722 "Send TDLS Discovery Request to %pM\n", peer);
2723 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
2724 dialog_token, status_code,
2725 extra_ies, extra_ies_len);
2726 break;
2727 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2728 dev_dbg(priv->adapter->dev,
2729 "Send TDLS Discovery Response to %pM\n", peer);
2730 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
2731 dialog_token, status_code,
2732 extra_ies, extra_ies_len);
2733 break;
2734 default:
2735 dev_warn(priv->adapter->dev,
2736 "Unknown TDLS mgmt/action frame %pM\n", peer);
2737 ret = -EINVAL;
2738 break;
2739 }
2740
2741 return ret;
2742 }
2743
2744 static int
2745 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2746 const u8 *peer, enum nl80211_tdls_operation action)
2747 {
2748 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2749
2750 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
2751 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
2752 return -ENOTSUPP;
2753
2754 /* make sure we are in station mode and connected */
2755 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
2756 return -ENOTSUPP;
2757
2758 dev_dbg(priv->adapter->dev,
2759 "TDLS peer=%pM, oper=%d\n", peer, action);
2760
2761 switch (action) {
2762 case NL80211_TDLS_ENABLE_LINK:
2763 action = MWIFIEX_TDLS_ENABLE_LINK;
2764 break;
2765 case NL80211_TDLS_DISABLE_LINK:
2766 action = MWIFIEX_TDLS_DISABLE_LINK;
2767 break;
2768 case NL80211_TDLS_TEARDOWN:
2769 /* shouldn't happen!*/
2770 dev_warn(priv->adapter->dev,
2771 "tdls_oper: teardown from driver not supported\n");
2772 return -EINVAL;
2773 case NL80211_TDLS_SETUP:
2774 /* shouldn't happen!*/
2775 dev_warn(priv->adapter->dev,
2776 "tdls_oper: setup from driver not supported\n");
2777 return -EINVAL;
2778 case NL80211_TDLS_DISCOVERY_REQ:
2779 /* shouldn't happen!*/
2780 dev_warn(priv->adapter->dev,
2781 "tdls_oper: discovery from driver not supported\n");
2782 return -EINVAL;
2783 default:
2784 dev_err(priv->adapter->dev,
2785 "tdls_oper: operation not supported\n");
2786 return -ENOTSUPP;
2787 }
2788
2789 return mwifiex_tdls_oper(priv, peer, action);
2790 }
2791
2792 static int
2793 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2794 const u8 *mac, struct station_parameters *params)
2795 {
2796 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2797
2798 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2799 return -ENOTSUPP;
2800
2801 /* make sure we are in station mode and connected */
2802 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2803 return -ENOTSUPP;
2804
2805 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
2806 }
2807
2808 static int
2809 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
2810 const u8 *mac,
2811 struct station_parameters *params)
2812 {
2813 int ret;
2814 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2815
2816 /* we support change_station handler only for TDLS peers*/
2817 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
2818 return -ENOTSUPP;
2819
2820 /* make sure we are in station mode and connected */
2821 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
2822 return -ENOTSUPP;
2823
2824 priv->sta_params = params;
2825
2826 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
2827 priv->sta_params = NULL;
2828
2829 return ret;
2830 }
2831
2832 /* station cfg80211 operations */
2833 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2834 .add_virtual_intf = mwifiex_add_virtual_intf,
2835 .del_virtual_intf = mwifiex_del_virtual_intf,
2836 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2837 .scan = mwifiex_cfg80211_scan,
2838 .connect = mwifiex_cfg80211_connect,
2839 .disconnect = mwifiex_cfg80211_disconnect,
2840 .get_station = mwifiex_cfg80211_get_station,
2841 .dump_station = mwifiex_cfg80211_dump_station,
2842 .dump_survey = mwifiex_cfg80211_dump_survey,
2843 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2844 .join_ibss = mwifiex_cfg80211_join_ibss,
2845 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2846 .add_key = mwifiex_cfg80211_add_key,
2847 .del_key = mwifiex_cfg80211_del_key,
2848 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2849 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2850 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2851 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2852 .set_default_key = mwifiex_cfg80211_set_default_key,
2853 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2854 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2855 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2856 .start_ap = mwifiex_cfg80211_start_ap,
2857 .stop_ap = mwifiex_cfg80211_stop_ap,
2858 .change_beacon = mwifiex_cfg80211_change_beacon,
2859 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2860 .set_antenna = mwifiex_cfg80211_set_antenna,
2861 .del_station = mwifiex_cfg80211_del_station,
2862 #ifdef CONFIG_PM
2863 .suspend = mwifiex_cfg80211_suspend,
2864 .resume = mwifiex_cfg80211_resume,
2865 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2866 #endif
2867 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2868 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
2869 .tdls_oper = mwifiex_cfg80211_tdls_oper,
2870 .add_station = mwifiex_cfg80211_add_station,
2871 .change_station = mwifiex_cfg80211_change_station,
2872 };
2873
2874 #ifdef CONFIG_PM
2875 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2876 .flags = WIPHY_WOWLAN_MAGIC_PKT,
2877 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2878 .pattern_min_len = 1,
2879 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2880 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2881 };
2882 #endif
2883
2884 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2885 {
2886 if (!alpha2 || strlen(alpha2) != 2)
2887 return false;
2888
2889 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2890 return true;
2891
2892 return false;
2893 }
2894
2895 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2896 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2897 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2898 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2899 .pattern_min_len = 1,
2900 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2901 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2902 };
2903
2904 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
2905 {
2906 u32 n_channels_bg, n_channels_a = 0;
2907
2908 n_channels_bg = mwifiex_band_2ghz.n_channels;
2909
2910 if (adapter->config_bands & BAND_A)
2911 n_channels_a = mwifiex_band_5ghz.n_channels;
2912
2913 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
2914 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
2915 adapter->num_in_chan_stats);
2916
2917 if (!adapter->chan_stats)
2918 return -ENOMEM;
2919
2920 return 0;
2921 }
2922
2923 /*
2924 * This function registers the device with CFG802.11 subsystem.
2925 *
2926 * The function creates the wireless device/wiphy, populates it with
2927 * default parameters and handler function pointers, and finally
2928 * registers the device.
2929 */
2930
2931 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2932 {
2933 int ret;
2934 void *wdev_priv;
2935 struct wiphy *wiphy;
2936 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2937 u8 *country_code;
2938 u32 thr, retry;
2939
2940 /* create a new wiphy for use with cfg80211 */
2941 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2942 sizeof(struct mwifiex_adapter *));
2943 if (!wiphy) {
2944 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2945 return -ENOMEM;
2946 }
2947 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2948 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2949 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2950 wiphy->max_remain_on_channel_duration = 5000;
2951 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2952 BIT(NL80211_IFTYPE_ADHOC) |
2953 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2954 BIT(NL80211_IFTYPE_P2P_GO) |
2955 BIT(NL80211_IFTYPE_AP);
2956
2957 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2958 if (adapter->config_bands & BAND_A)
2959 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2960 else
2961 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2962
2963 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2964 wiphy->n_iface_combinations = 1;
2965
2966 /* Initialize cipher suits */
2967 wiphy->cipher_suites = mwifiex_cipher_suites;
2968 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2969
2970 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2971 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2972 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2973 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2974 WIPHY_FLAG_AP_UAPSD |
2975 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2976
2977 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
2978 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
2979 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
2980
2981 #ifdef CONFIG_PM
2982 wiphy->wowlan = &mwifiex_wowlan_support;
2983 #endif
2984
2985 wiphy->coalesce = &mwifiex_coalesce_support;
2986
2987 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2988 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2989 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2990
2991 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2992 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2993
2994 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2995 NL80211_FEATURE_INACTIVITY_TIMER |
2996 NL80211_FEATURE_NEED_OBSS_SCAN;
2997
2998 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
2999 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3000
3001 /* Reserve space for mwifiex specific private data for BSS */
3002 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3003
3004 wiphy->reg_notifier = mwifiex_reg_notifier;
3005
3006 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3007 wdev_priv = wiphy_priv(wiphy);
3008 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3009
3010 set_wiphy_dev(wiphy, priv->adapter->dev);
3011
3012 ret = wiphy_register(wiphy);
3013 if (ret < 0) {
3014 dev_err(adapter->dev,
3015 "%s: wiphy_register failed: %d\n", __func__, ret);
3016 wiphy_free(wiphy);
3017 return ret;
3018 }
3019
3020 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3021 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
3022 regulatory_hint(wiphy, reg_alpha2);
3023 } else {
3024 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3025 if (country_code)
3026 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
3027 country_code);
3028 }
3029
3030 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3031 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3032 wiphy->frag_threshold = thr;
3033 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3034 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3035 wiphy->rts_threshold = thr;
3036 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3037 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3038 wiphy->retry_short = (u8) retry;
3039 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3040 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3041 wiphy->retry_long = (u8) retry;
3042
3043 adapter->wiphy = wiphy;
3044 return ret;
3045 }
Linux kernel - Deliverables
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