projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
[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 /* This function maps IEEE HT secondary channel type to NL80211 channel type
71 */
72 u8 mwifiex_sec_chan_offset_to_chan_type(u8 second_chan_offset)
73 {
74 switch (second_chan_offset) {
75 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
76 return NL80211_CHAN_HT20;
77 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
78 return NL80211_CHAN_HT40PLUS;
79 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
80 return NL80211_CHAN_HT40MINUS;
81 default:
82 return NL80211_CHAN_HT20;
83 }
84 }
85
86 /*
87 * This function checks whether WEP is set.
88 */
89 static int
90 mwifiex_is_alg_wep(u32 cipher)
91 {
92 switch (cipher) {
93 case WLAN_CIPHER_SUITE_WEP40:
94 case WLAN_CIPHER_SUITE_WEP104:
95 return 1;
96 default:
97 break;
98 }
99
100 return 0;
101 }
102
103 /*
104 * This function retrieves the private structure from kernel wiphy structure.
105 */
106 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
107 {
108 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
109 }
110
111 /*
112 * CFG802.11 operation handler to delete a network key.
113 */
114 static int
115 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
116 u8 key_index, bool pairwise, const u8 *mac_addr)
117 {
118 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
119 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
120 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
121
122 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
123 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
124 return -EFAULT;
125 }
126
127 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
128 return 0;
129 }
130
131 /*
132 * This function forms an skb for management frame.
133 */
134 static int
135 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
136 {
137 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
138 u16 pkt_len;
139 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
140
141 pkt_len = len + ETH_ALEN;
142
143 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
144 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
145 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
146
147 memcpy(skb_push(skb, sizeof(tx_control)),
148 &tx_control, sizeof(tx_control));
149
150 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
151
152 /* Add packet data and address4 */
153 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
154 sizeof(struct ieee80211_hdr_3addr));
155 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
156 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
157 buf + sizeof(struct ieee80211_hdr_3addr),
158 len - sizeof(struct ieee80211_hdr_3addr));
159
160 skb->priority = LOW_PRIO_TID;
161 __net_timestamp(skb);
162
163 return 0;
164 }
165
166 /*
167 * CFG802.11 operation handler to transmit a management frame.
168 */
169 static int
170 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
171 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
172 {
173 const u8 *buf = params->buf;
174 size_t len = params->len;
175 struct sk_buff *skb;
176 u16 pkt_len;
177 const struct ieee80211_mgmt *mgmt;
178 struct mwifiex_txinfo *tx_info;
179 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
180
181 if (!buf || !len) {
182 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
183 return -EFAULT;
184 }
185
186 mgmt = (const struct ieee80211_mgmt *)buf;
187 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
188 ieee80211_is_probe_resp(mgmt->frame_control)) {
189 /* Since we support offload probe resp, we need to skip probe
190 * resp in AP or GO mode */
191 mwifiex_dbg(priv->adapter, INFO,
192 "info: skip to send probe resp in AP or GO mode\n");
193 return 0;
194 }
195
196 pkt_len = len + ETH_ALEN;
197 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
198 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
199 pkt_len + sizeof(pkt_len));
200
201 if (!skb) {
202 mwifiex_dbg(priv->adapter, ERROR,
203 "allocate skb failed for management frame\n");
204 return -ENOMEM;
205 }
206
207 tx_info = MWIFIEX_SKB_TXCB(skb);
208 memset(tx_info, 0, sizeof(*tx_info));
209 tx_info->bss_num = priv->bss_num;
210 tx_info->bss_type = priv->bss_type;
211 tx_info->pkt_len = pkt_len;
212
213 mwifiex_form_mgmt_frame(skb, buf, len);
214 *cookie = prandom_u32() | 1;
215
216 if (ieee80211_is_action(mgmt->frame_control))
217 skb = mwifiex_clone_skb_for_tx_status(priv,
218 skb,
219 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
220 else
221 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
222 GFP_ATOMIC);
223
224 mwifiex_queue_tx_pkt(priv, skb);
225
226 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
227 return 0;
228 }
229
230 /*
231 * CFG802.11 operation handler to register a mgmt frame.
232 */
233 static void
234 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
235 struct wireless_dev *wdev,
236 u16 frame_type, bool reg)
237 {
238 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
239 u32 mask;
240
241 if (reg)
242 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
243 else
244 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
245
246 if (mask != priv->mgmt_frame_mask) {
247 priv->mgmt_frame_mask = mask;
248 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
249 HostCmd_ACT_GEN_SET, 0,
250 &priv->mgmt_frame_mask, false);
251 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
252 }
253 }
254
255 /*
256 * CFG802.11 operation handler to remain on channel.
257 */
258 static int
259 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
260 struct wireless_dev *wdev,
261 struct ieee80211_channel *chan,
262 unsigned int duration, u64 *cookie)
263 {
264 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
265 int ret;
266
267 if (!chan || !cookie) {
268 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
269 return -EINVAL;
270 }
271
272 if (priv->roc_cfg.cookie) {
273 mwifiex_dbg(priv->adapter, INFO,
274 "info: ongoing ROC, cookie = 0x%llx\n",
275 priv->roc_cfg.cookie);
276 return -EBUSY;
277 }
278
279 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
280 duration);
281
282 if (!ret) {
283 *cookie = prandom_u32() | 1;
284 priv->roc_cfg.cookie = *cookie;
285 priv->roc_cfg.chan = *chan;
286
287 cfg80211_ready_on_channel(wdev, *cookie, chan,
288 duration, GFP_ATOMIC);
289
290 mwifiex_dbg(priv->adapter, INFO,
291 "info: ROC, cookie = 0x%llx\n", *cookie);
292 }
293
294 return ret;
295 }
296
297 /*
298 * CFG802.11 operation handler to cancel remain on channel.
299 */
300 static int
301 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
302 struct wireless_dev *wdev, u64 cookie)
303 {
304 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
305 int ret;
306
307 if (cookie != priv->roc_cfg.cookie)
308 return -ENOENT;
309
310 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
311 &priv->roc_cfg.chan, 0);
312
313 if (!ret) {
314 cfg80211_remain_on_channel_expired(wdev, cookie,
315 &priv->roc_cfg.chan,
316 GFP_ATOMIC);
317
318 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
319
320 mwifiex_dbg(priv->adapter, INFO,
321 "info: cancel ROC, cookie = 0x%llx\n", cookie);
322 }
323
324 return ret;
325 }
326
327 /*
328 * CFG802.11 operation handler to set Tx power.
329 */
330 static int
331 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
332 struct wireless_dev *wdev,
333 enum nl80211_tx_power_setting type,
334 int mbm)
335 {
336 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
337 struct mwifiex_private *priv;
338 struct mwifiex_power_cfg power_cfg;
339 int dbm = MBM_TO_DBM(mbm);
340
341 if (type == NL80211_TX_POWER_FIXED) {
342 power_cfg.is_power_auto = 0;
343 power_cfg.power_level = dbm;
344 } else {
345 power_cfg.is_power_auto = 1;
346 }
347
348 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
349
350 return mwifiex_set_tx_power(priv, &power_cfg);
351 }
352
353 /*
354 * CFG802.11 operation handler to set Power Save option.
355 *
356 * The timeout value, if provided, is currently ignored.
357 */
358 static int
359 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
360 struct net_device *dev,
361 bool enabled, int timeout)
362 {
363 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
364 u32 ps_mode;
365
366 if (timeout)
367 mwifiex_dbg(priv->adapter, INFO,
368 "info: ignore timeout value for IEEE Power Save\n");
369
370 ps_mode = enabled;
371
372 return mwifiex_drv_set_power(priv, &ps_mode);
373 }
374
375 /*
376 * CFG802.11 operation handler to set the default network key.
377 */
378 static int
379 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
380 u8 key_index, bool unicast,
381 bool multicast)
382 {
383 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
384
385 /* Return if WEP key not configured */
386 if (!priv->sec_info.wep_enabled)
387 return 0;
388
389 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
390 priv->wep_key_curr_index = key_index;
391 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
392 NULL, 0)) {
393 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
394 return -EFAULT;
395 }
396
397 return 0;
398 }
399
400 /*
401 * CFG802.11 operation handler to add a network key.
402 */
403 static int
404 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
405 u8 key_index, bool pairwise, const u8 *mac_addr,
406 struct key_params *params)
407 {
408 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
409 struct mwifiex_wep_key *wep_key;
410 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
411 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
412
413 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
414 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
415 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
416 if (params->key && params->key_len) {
417 wep_key = &priv->wep_key[key_index];
418 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
419 memcpy(wep_key->key_material, params->key,
420 params->key_len);
421 wep_key->key_index = key_index;
422 wep_key->key_length = params->key_len;
423 priv->sec_info.wep_enabled = 1;
424 }
425 return 0;
426 }
427
428 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
429 key_index, peer_mac, 0)) {
430 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
431 return -EFAULT;
432 }
433
434 return 0;
435 }
436
437 /*
438 * This function sends domain information to the firmware.
439 *
440 * The following information are passed to the firmware -
441 * - Country codes
442 * - Sub bands (first channel, number of channels, maximum Tx power)
443 */
444 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
445 {
446 u8 no_of_triplet = 0;
447 struct ieee80211_country_ie_triplet *t;
448 u8 no_of_parsed_chan = 0;
449 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
450 u8 i, flag = 0;
451 enum ieee80211_band band;
452 struct ieee80211_supported_band *sband;
453 struct ieee80211_channel *ch;
454 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
455 struct mwifiex_private *priv;
456 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
457
458 /* Set country code */
459 domain_info->country_code[0] = adapter->country_code[0];
460 domain_info->country_code[1] = adapter->country_code[1];
461 domain_info->country_code[2] = ' ';
462
463 band = mwifiex_band_to_radio_type(adapter->config_bands);
464 if (!wiphy->bands[band]) {
465 mwifiex_dbg(adapter, ERROR,
466 "11D: setting domain info in FW\n");
467 return -1;
468 }
469
470 sband = wiphy->bands[band];
471
472 for (i = 0; i < sband->n_channels ; i++) {
473 ch = &sband->channels[i];
474 if (ch->flags & IEEE80211_CHAN_DISABLED)
475 continue;
476
477 if (!flag) {
478 flag = 1;
479 first_chan = (u32) ch->hw_value;
480 next_chan = first_chan;
481 max_pwr = ch->max_power;
482 no_of_parsed_chan = 1;
483 continue;
484 }
485
486 if (ch->hw_value == next_chan + 1 &&
487 ch->max_power == max_pwr) {
488 next_chan++;
489 no_of_parsed_chan++;
490 } else {
491 t = &domain_info->triplet[no_of_triplet];
492 t->chans.first_channel = first_chan;
493 t->chans.num_channels = no_of_parsed_chan;
494 t->chans.max_power = max_pwr;
495 no_of_triplet++;
496 first_chan = (u32) ch->hw_value;
497 next_chan = first_chan;
498 max_pwr = ch->max_power;
499 no_of_parsed_chan = 1;
500 }
501 }
502
503 if (flag) {
504 t = &domain_info->triplet[no_of_triplet];
505 t->chans.first_channel = first_chan;
506 t->chans.num_channels = no_of_parsed_chan;
507 t->chans.max_power = max_pwr;
508 no_of_triplet++;
509 }
510
511 domain_info->no_of_triplet = no_of_triplet;
512
513 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
514
515 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
516 HostCmd_ACT_GEN_SET, 0, NULL, false)) {
517 mwifiex_dbg(adapter, INFO,
518 "11D: setting domain info in FW\n");
519 return -1;
520 }
521
522 return 0;
523 }
524
525 /*
526 * CFG802.11 regulatory domain callback function.
527 *
528 * This function is called when the regulatory domain is changed due to the
529 * following reasons -
530 * - Set by driver
531 * - Set by system core
532 * - Set by user
533 * - Set bt Country IE
534 */
535 static void mwifiex_reg_notifier(struct wiphy *wiphy,
536 struct regulatory_request *request)
537 {
538 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
539 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
540 MWIFIEX_BSS_ROLE_ANY);
541 mwifiex_dbg(adapter, INFO,
542 "info: cfg80211 regulatory domain callback for %c%c\n",
543 request->alpha2[0], request->alpha2[1]);
544
545 switch (request->initiator) {
546 case NL80211_REGDOM_SET_BY_DRIVER:
547 case NL80211_REGDOM_SET_BY_CORE:
548 case NL80211_REGDOM_SET_BY_USER:
549 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
550 break;
551 default:
552 mwifiex_dbg(adapter, ERROR,
553 "unknown regdom initiator: %d\n",
554 request->initiator);
555 return;
556 }
557
558 /* Don't send world or same regdom info to firmware */
559 if (strncmp(request->alpha2, "00", 2) &&
560 strncmp(request->alpha2, adapter->country_code,
561 sizeof(request->alpha2))) {
562 memcpy(adapter->country_code, request->alpha2,
563 sizeof(request->alpha2));
564 mwifiex_send_domain_info_cmd_fw(wiphy);
565 mwifiex_dnld_txpwr_table(priv);
566 }
567 }
568
569 /*
570 * This function sets the fragmentation threshold.
571 *
572 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
573 * and MWIFIEX_FRAG_MAX_VALUE.
574 */
575 static int
576 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
577 {
578 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
579 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
580 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
581
582 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
583 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
584 &frag_thr, true);
585 }
586
587 /*
588 * This function sets the RTS threshold.
589
590 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
591 * and MWIFIEX_RTS_MAX_VALUE.
592 */
593 static int
594 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
595 {
596 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
597 rts_thr = MWIFIEX_RTS_MAX_VALUE;
598
599 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
600 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
601 &rts_thr, true);
602 }
603
604 /*
605 * CFG802.11 operation handler to set wiphy parameters.
606 *
607 * This function can be used to set the RTS threshold and the
608 * Fragmentation threshold of the driver.
609 */
610 static int
611 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
612 {
613 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
614 struct mwifiex_private *priv;
615 struct mwifiex_uap_bss_param *bss_cfg;
616 int ret;
617
618 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
619
620 switch (priv->bss_role) {
621 case MWIFIEX_BSS_ROLE_UAP:
622 if (priv->bss_started) {
623 mwifiex_dbg(adapter, ERROR,
624 "cannot change wiphy params when bss started");
625 return -EINVAL;
626 }
627
628 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
629 if (!bss_cfg)
630 return -ENOMEM;
631
632 mwifiex_set_sys_config_invalid_data(bss_cfg);
633
634 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
635 bss_cfg->rts_threshold = wiphy->rts_threshold;
636 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
637 bss_cfg->frag_threshold = wiphy->frag_threshold;
638 if (changed & WIPHY_PARAM_RETRY_LONG)
639 bss_cfg->retry_limit = wiphy->retry_long;
640
641 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
642 HostCmd_ACT_GEN_SET,
643 UAP_BSS_PARAMS_I, bss_cfg,
644 false);
645
646 kfree(bss_cfg);
647 if (ret) {
648 mwifiex_dbg(adapter, ERROR,
649 "Failed to set wiphy phy params\n");
650 return ret;
651 }
652 break;
653
654 case MWIFIEX_BSS_ROLE_STA:
655 if (priv->media_connected) {
656 mwifiex_dbg(adapter, ERROR,
657 "cannot change wiphy params when connected");
658 return -EINVAL;
659 }
660 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
661 ret = mwifiex_set_rts(priv,
662 wiphy->rts_threshold);
663 if (ret)
664 return ret;
665 }
666 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
667 ret = mwifiex_set_frag(priv,
668 wiphy->frag_threshold);
669 if (ret)
670 return ret;
671 }
672 break;
673 }
674
675 return 0;
676 }
677
678 static int
679 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
680 {
681 u16 mode = P2P_MODE_DISABLE;
682
683 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
684 HostCmd_ACT_GEN_SET, 0, &mode, true))
685 return -1;
686
687 return 0;
688 }
689
690 /*
691 * This function initializes the functionalities for P2P client.
692 * The P2P client initialization sequence is:
693 * disable -> device -> client
694 */
695 static int
696 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
697 {
698 u16 mode;
699
700 if (mwifiex_cfg80211_deinit_p2p(priv))
701 return -1;
702
703 mode = P2P_MODE_DEVICE;
704 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
705 HostCmd_ACT_GEN_SET, 0, &mode, true))
706 return -1;
707
708 mode = P2P_MODE_CLIENT;
709 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
710 HostCmd_ACT_GEN_SET, 0, &mode, true))
711 return -1;
712
713 return 0;
714 }
715
716 /*
717 * This function initializes the functionalities for P2P GO.
718 * The P2P GO initialization sequence is:
719 * disable -> device -> GO
720 */
721 static int
722 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
723 {
724 u16 mode;
725
726 if (mwifiex_cfg80211_deinit_p2p(priv))
727 return -1;
728
729 mode = P2P_MODE_DEVICE;
730 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
731 HostCmd_ACT_GEN_SET, 0, &mode, true))
732 return -1;
733
734 mode = P2P_MODE_GO;
735 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
736 HostCmd_ACT_GEN_SET, 0, &mode, true))
737 return -1;
738
739 return 0;
740 }
741
742 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
743 {
744 struct mwifiex_adapter *adapter = priv->adapter;
745 unsigned long flags;
746
747 priv->mgmt_frame_mask = 0;
748 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
749 HostCmd_ACT_GEN_SET, 0,
750 &priv->mgmt_frame_mask, false)) {
751 mwifiex_dbg(adapter, ERROR,
752 "could not unregister mgmt frame rx\n");
753 return -1;
754 }
755
756 mwifiex_deauthenticate(priv, NULL);
757
758 spin_lock_irqsave(&adapter->main_proc_lock, flags);
759 adapter->main_locked = true;
760 if (adapter->mwifiex_processing) {
761 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
762 flush_workqueue(adapter->workqueue);
763 } else {
764 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
765 }
766
767 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
768 adapter->rx_locked = true;
769 if (adapter->rx_processing) {
770 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
771 flush_workqueue(adapter->rx_workqueue);
772 } else {
773 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
774 }
775
776 mwifiex_free_priv(priv);
777 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
778 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
779 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
780
781 return 0;
782 }
783
784 static int
785 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
786 struct net_device *dev,
787 enum nl80211_iftype type)
788 {
789 struct mwifiex_adapter *adapter = priv->adapter;
790 unsigned long flags;
791
792 mwifiex_init_priv(priv);
793
794 priv->bss_mode = type;
795 priv->wdev.iftype = type;
796
797 mwifiex_init_priv_params(priv, priv->netdev);
798 priv->bss_started = 0;
799
800 switch (type) {
801 case NL80211_IFTYPE_STATION:
802 case NL80211_IFTYPE_ADHOC:
803 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
804 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
805 break;
806 case NL80211_IFTYPE_P2P_CLIENT:
807 case NL80211_IFTYPE_P2P_GO:
808 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
809 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
810 break;
811 case NL80211_IFTYPE_AP:
812 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
813 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
814 break;
815 default:
816 mwifiex_dbg(adapter, ERROR,
817 "%s: changing to %d not supported\n",
818 dev->name, type);
819 return -EOPNOTSUPP;
820 }
821
822 spin_lock_irqsave(&adapter->main_proc_lock, flags);
823 adapter->main_locked = false;
824 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
825
826 spin_lock_irqsave(&adapter->rx_proc_lock, flags);
827 adapter->rx_locked = false;
828 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
829
830 return 0;
831 }
832
833 static int
834 mwifiex_change_vif_to_p2p(struct net_device *dev,
835 enum nl80211_iftype curr_iftype,
836 enum nl80211_iftype type, u32 *flags,
837 struct vif_params *params)
838 {
839 struct mwifiex_private *priv;
840 struct mwifiex_adapter *adapter;
841
842 priv = mwifiex_netdev_get_priv(dev);
843
844 if (!priv)
845 return -1;
846
847 adapter = priv->adapter;
848
849 if (adapter->curr_iface_comb.p2p_intf ==
850 adapter->iface_limit.p2p_intf) {
851 mwifiex_dbg(adapter, ERROR,
852 "cannot create multiple P2P ifaces\n");
853 return -1;
854 }
855
856 mwifiex_dbg(adapter, INFO,
857 "%s: changing role to p2p\n", dev->name);
858
859 if (mwifiex_deinit_priv_params(priv))
860 return -1;
861 if (mwifiex_init_new_priv_params(priv, dev, type))
862 return -1;
863
864 switch (type) {
865 case NL80211_IFTYPE_P2P_CLIENT:
866 if (mwifiex_cfg80211_init_p2p_client(priv))
867 return -EFAULT;
868 break;
869 case NL80211_IFTYPE_P2P_GO:
870 if (mwifiex_cfg80211_init_p2p_go(priv))
871 return -EFAULT;
872 break;
873 default:
874 mwifiex_dbg(adapter, ERROR,
875 "%s: changing to %d not supported\n",
876 dev->name, type);
877 return -EOPNOTSUPP;
878 }
879
880 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
881 HostCmd_ACT_GEN_SET, 0, NULL, true))
882 return -1;
883
884 if (mwifiex_sta_init_cmd(priv, false, false))
885 return -1;
886
887 switch (curr_iftype) {
888 case NL80211_IFTYPE_STATION:
889 case NL80211_IFTYPE_ADHOC:
890 adapter->curr_iface_comb.sta_intf--;
891 break;
892 case NL80211_IFTYPE_AP:
893 adapter->curr_iface_comb.uap_intf--;
894 break;
895 default:
896 break;
897 }
898
899 adapter->curr_iface_comb.p2p_intf++;
900 dev->ieee80211_ptr->iftype = type;
901
902 return 0;
903 }
904
905 static int
906 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
907 enum nl80211_iftype curr_iftype,
908 enum nl80211_iftype type, u32 *flags,
909 struct vif_params *params)
910 {
911 struct mwifiex_private *priv;
912 struct mwifiex_adapter *adapter;
913
914 priv = mwifiex_netdev_get_priv(dev);
915
916 if (!priv)
917 return -1;
918
919 adapter = priv->adapter;
920
921 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
922 curr_iftype != NL80211_IFTYPE_P2P_GO) &&
923 (adapter->curr_iface_comb.sta_intf ==
924 adapter->iface_limit.sta_intf)) {
925 mwifiex_dbg(adapter, ERROR,
926 "cannot create multiple station/adhoc ifaces\n");
927 return -1;
928 }
929
930 if (type == NL80211_IFTYPE_STATION)
931 mwifiex_dbg(adapter, INFO,
932 "%s: changing role to station\n", dev->name);
933 else
934 mwifiex_dbg(adapter, INFO,
935 "%s: changing role to adhoc\n", dev->name);
936
937 if (mwifiex_deinit_priv_params(priv))
938 return -1;
939 if (mwifiex_init_new_priv_params(priv, dev, type))
940 return -1;
941 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
942 HostCmd_ACT_GEN_SET, 0, NULL, true))
943 return -1;
944 if (mwifiex_sta_init_cmd(priv, false, false))
945 return -1;
946
947 switch (curr_iftype) {
948 case NL80211_IFTYPE_P2P_CLIENT:
949 case NL80211_IFTYPE_P2P_GO:
950 adapter->curr_iface_comb.p2p_intf--;
951 break;
952 case NL80211_IFTYPE_AP:
953 adapter->curr_iface_comb.uap_intf--;
954 break;
955 default:
956 break;
957 }
958
959 adapter->curr_iface_comb.sta_intf++;
960 dev->ieee80211_ptr->iftype = type;
961 return 0;
962 }
963
964 static int
965 mwifiex_change_vif_to_ap(struct net_device *dev,
966 enum nl80211_iftype curr_iftype,
967 enum nl80211_iftype type, u32 *flags,
968 struct vif_params *params)
969 {
970 struct mwifiex_private *priv;
971 struct mwifiex_adapter *adapter;
972
973 priv = mwifiex_netdev_get_priv(dev);
974
975 if (!priv)
976 return -1;
977
978 adapter = priv->adapter;
979
980 if (adapter->curr_iface_comb.uap_intf ==
981 adapter->iface_limit.uap_intf) {
982 mwifiex_dbg(adapter, ERROR,
983 "cannot create multiple AP ifaces\n");
984 return -1;
985 }
986
987 mwifiex_dbg(adapter, INFO,
988 "%s: changing role to AP\n", dev->name);
989
990 if (mwifiex_deinit_priv_params(priv))
991 return -1;
992 if (mwifiex_init_new_priv_params(priv, dev, type))
993 return -1;
994 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
995 HostCmd_ACT_GEN_SET, 0, NULL, true))
996 return -1;
997 if (mwifiex_sta_init_cmd(priv, false, false))
998 return -1;
999
1000 switch (curr_iftype) {
1001 case NL80211_IFTYPE_P2P_CLIENT:
1002 case NL80211_IFTYPE_P2P_GO:
1003 adapter->curr_iface_comb.p2p_intf--;
1004 break;
1005 case NL80211_IFTYPE_STATION:
1006 case NL80211_IFTYPE_ADHOC:
1007 adapter->curr_iface_comb.sta_intf--;
1008 break;
1009 default:
1010 break;
1011 }
1012
1013 adapter->curr_iface_comb.uap_intf++;
1014 dev->ieee80211_ptr->iftype = type;
1015 return 0;
1016 }
1017 /*
1018 * CFG802.11 operation handler to change interface type.
1019 */
1020 static int
1021 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1022 struct net_device *dev,
1023 enum nl80211_iftype type, u32 *flags,
1024 struct vif_params *params)
1025 {
1026 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1027 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1028
1029 switch (curr_iftype) {
1030 case NL80211_IFTYPE_ADHOC:
1031 switch (type) {
1032 case NL80211_IFTYPE_STATION:
1033 priv->bss_mode = type;
1034 priv->sec_info.authentication_mode =
1035 NL80211_AUTHTYPE_OPEN_SYSTEM;
1036 dev->ieee80211_ptr->iftype = type;
1037 mwifiex_deauthenticate(priv, NULL);
1038 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1039 HostCmd_ACT_GEN_SET, 0, NULL,
1040 true);
1041 case NL80211_IFTYPE_P2P_CLIENT:
1042 case NL80211_IFTYPE_P2P_GO:
1043 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1044 type, flags, params);
1045 case NL80211_IFTYPE_AP:
1046 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1047 flags, params);
1048 case NL80211_IFTYPE_UNSPECIFIED:
1049 mwifiex_dbg(priv->adapter, INFO,
1050 "%s: kept type as IBSS\n", dev->name);
1051 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
1052 return 0;
1053 default:
1054 mwifiex_dbg(priv->adapter, ERROR,
1055 "%s: changing to %d not supported\n",
1056 dev->name, type);
1057 return -EOPNOTSUPP;
1058 }
1059 break;
1060 case NL80211_IFTYPE_STATION:
1061 switch (type) {
1062 case NL80211_IFTYPE_ADHOC:
1063 priv->bss_mode = type;
1064 priv->sec_info.authentication_mode =
1065 NL80211_AUTHTYPE_OPEN_SYSTEM;
1066 dev->ieee80211_ptr->iftype = type;
1067 mwifiex_deauthenticate(priv, NULL);
1068 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1069 HostCmd_ACT_GEN_SET, 0, NULL,
1070 true);
1071 case NL80211_IFTYPE_P2P_CLIENT:
1072 case NL80211_IFTYPE_P2P_GO:
1073 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1074 type, flags, params);
1075 case NL80211_IFTYPE_AP:
1076 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1077 flags, params);
1078 case NL80211_IFTYPE_UNSPECIFIED:
1079 mwifiex_dbg(priv->adapter, INFO,
1080 "%s: kept type as STA\n", dev->name);
1081 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
1082 return 0;
1083 default:
1084 mwifiex_dbg(priv->adapter, ERROR,
1085 "%s: changing to %d not supported\n",
1086 dev->name, type);
1087 return -EOPNOTSUPP;
1088 }
1089 break;
1090 case NL80211_IFTYPE_AP:
1091 switch (type) {
1092 case NL80211_IFTYPE_ADHOC:
1093 case NL80211_IFTYPE_STATION:
1094 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1095 type, flags,
1096 params);
1097 break;
1098 case NL80211_IFTYPE_P2P_CLIENT:
1099 case NL80211_IFTYPE_P2P_GO:
1100 return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1101 type, flags, params);
1102 case NL80211_IFTYPE_UNSPECIFIED:
1103 mwifiex_dbg(priv->adapter, INFO,
1104 "%s: kept type as AP\n", dev->name);
1105 case NL80211_IFTYPE_AP: /* This shouldn't happen */
1106 return 0;
1107 default:
1108 mwifiex_dbg(priv->adapter, ERROR,
1109 "%s: changing to %d not supported\n",
1110 dev->name, type);
1111 return -EOPNOTSUPP;
1112 }
1113 break;
1114 case NL80211_IFTYPE_P2P_CLIENT:
1115 case NL80211_IFTYPE_P2P_GO:
1116 switch (type) {
1117 case NL80211_IFTYPE_STATION:
1118 if (mwifiex_cfg80211_init_p2p_client(priv))
1119 return -EFAULT;
1120 dev->ieee80211_ptr->iftype = type;
1121 break;
1122 case NL80211_IFTYPE_ADHOC:
1123 if (mwifiex_cfg80211_deinit_p2p(priv))
1124 return -EFAULT;
1125 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1126 type, flags,
1127 params);
1128 break;
1129 case NL80211_IFTYPE_AP:
1130 if (mwifiex_cfg80211_deinit_p2p(priv))
1131 return -EFAULT;
1132 return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1133 flags, params);
1134 case NL80211_IFTYPE_UNSPECIFIED:
1135 mwifiex_dbg(priv->adapter, INFO,
1136 "%s: kept type as P2P\n", dev->name);
1137 case NL80211_IFTYPE_P2P_CLIENT:
1138 case NL80211_IFTYPE_P2P_GO:
1139 return 0;
1140 default:
1141 mwifiex_dbg(priv->adapter, ERROR,
1142 "%s: changing to %d not supported\n",
1143 dev->name, type);
1144 return -EOPNOTSUPP;
1145 }
1146 break;
1147 default:
1148 mwifiex_dbg(priv->adapter, ERROR,
1149 "%s: unknown iftype: %d\n",
1150 dev->name, dev->ieee80211_ptr->iftype);
1151 return -EOPNOTSUPP;
1152 }
1153
1154
1155 return 0;
1156 }
1157
1158 static void
1159 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1160 struct rate_info *rate)
1161 {
1162 struct mwifiex_adapter *adapter = priv->adapter;
1163
1164 if (adapter->is_hw_11ac_capable) {
1165 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1166 if (tx_htinfo & BIT(0)) {
1167 /* HT */
1168 rate->mcs = priv->tx_rate;
1169 rate->flags |= RATE_INFO_FLAGS_MCS;
1170 }
1171 if (tx_htinfo & BIT(1)) {
1172 /* VHT */
1173 rate->mcs = priv->tx_rate & 0x0F;
1174 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1175 }
1176
1177 if (tx_htinfo & (BIT(1) | BIT(0))) {
1178 /* HT or VHT */
1179 switch (tx_htinfo & (BIT(3) | BIT(2))) {
1180 case 0:
1181 rate->bw = RATE_INFO_BW_20;
1182 break;
1183 case (BIT(2)):
1184 rate->bw = RATE_INFO_BW_40;
1185 break;
1186 case (BIT(3)):
1187 rate->bw = RATE_INFO_BW_80;
1188 break;
1189 case (BIT(3) | BIT(2)):
1190 rate->bw = RATE_INFO_BW_160;
1191 break;
1192 }
1193
1194 if (tx_htinfo & BIT(4))
1195 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1196
1197 if ((priv->tx_rate >> 4) == 1)
1198 rate->nss = 2;
1199 else
1200 rate->nss = 1;
1201 }
1202 } else {
1203 /*
1204 * Bit 0 in tx_htinfo indicates that current Tx rate
1205 * is 11n rate. Valid MCS index values for us are 0 to 15.
1206 */
1207 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1208 rate->mcs = priv->tx_rate;
1209 rate->flags |= RATE_INFO_FLAGS_MCS;
1210 rate->bw = RATE_INFO_BW_20;
1211 if (tx_htinfo & BIT(1))
1212 rate->bw = RATE_INFO_BW_40;
1213 if (tx_htinfo & BIT(2))
1214 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1215 }
1216 }
1217 }
1218
1219 /*
1220 * This function dumps the station information on a buffer.
1221 *
1222 * The following information are shown -
1223 * - Total bytes transmitted
1224 * - Total bytes received
1225 * - Total packets transmitted
1226 * - Total packets received
1227 * - Signal quality level
1228 * - Transmission rate
1229 */
1230 static int
1231 mwifiex_dump_station_info(struct mwifiex_private *priv,
1232 struct mwifiex_sta_node *node,
1233 struct station_info *sinfo)
1234 {
1235 u32 rate;
1236
1237 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1238 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1239 BIT(NL80211_STA_INFO_TX_BITRATE) |
1240 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1241
1242 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1243 if (!node)
1244 return -ENOENT;
1245
1246 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1247 BIT(NL80211_STA_INFO_TX_FAILED);
1248 sinfo->inactive_time =
1249 jiffies_to_msecs(jiffies - node->stats.last_rx);
1250
1251 sinfo->signal = node->stats.rssi;
1252 sinfo->signal_avg = node->stats.rssi;
1253 sinfo->rx_bytes = node->stats.rx_bytes;
1254 sinfo->tx_bytes = node->stats.tx_bytes;
1255 sinfo->rx_packets = node->stats.rx_packets;
1256 sinfo->tx_packets = node->stats.tx_packets;
1257 sinfo->tx_failed = node->stats.tx_failed;
1258
1259 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1260 &sinfo->txrate);
1261 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1262
1263 return 0;
1264 }
1265
1266 /* Get signal information from the firmware */
1267 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1268 HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1269 mwifiex_dbg(priv->adapter, ERROR,
1270 "failed to get signal information\n");
1271 return -EFAULT;
1272 }
1273
1274 if (mwifiex_drv_get_data_rate(priv, &rate)) {
1275 mwifiex_dbg(priv->adapter, ERROR,
1276 "getting data rate error\n");
1277 return -EFAULT;
1278 }
1279
1280 /* Get DTIM period information from firmware */
1281 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1282 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1283 &priv->dtim_period, true);
1284
1285 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1286
1287 sinfo->signal_avg = priv->bcn_rssi_avg;
1288 sinfo->rx_bytes = priv->stats.rx_bytes;
1289 sinfo->tx_bytes = priv->stats.tx_bytes;
1290 sinfo->rx_packets = priv->stats.rx_packets;
1291 sinfo->tx_packets = priv->stats.tx_packets;
1292 sinfo->signal = priv->bcn_rssi_avg;
1293 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1294 sinfo->txrate.legacy = rate * 5;
1295
1296 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1297 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1298 sinfo->bss_param.flags = 0;
1299 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1300 WLAN_CAPABILITY_SHORT_PREAMBLE)
1301 sinfo->bss_param.flags |=
1302 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1303 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1304 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1305 sinfo->bss_param.flags |=
1306 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1307 sinfo->bss_param.dtim_period = priv->dtim_period;
1308 sinfo->bss_param.beacon_interval =
1309 priv->curr_bss_params.bss_descriptor.beacon_period;
1310 }
1311
1312 return 0;
1313 }
1314
1315 /*
1316 * CFG802.11 operation handler to get station information.
1317 *
1318 * This function only works in connected mode, and dumps the
1319 * requested station information, if available.
1320 */
1321 static int
1322 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1323 const u8 *mac, struct station_info *sinfo)
1324 {
1325 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1326
1327 if (!priv->media_connected)
1328 return -ENOENT;
1329 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1330 return -ENOENT;
1331
1332 return mwifiex_dump_station_info(priv, NULL, sinfo);
1333 }
1334
1335 /*
1336 * CFG802.11 operation handler to dump station information.
1337 */
1338 static int
1339 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1340 int idx, u8 *mac, struct station_info *sinfo)
1341 {
1342 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1343 static struct mwifiex_sta_node *node;
1344
1345 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1346 priv->media_connected && idx == 0) {
1347 ether_addr_copy(mac, priv->cfg_bssid);
1348 return mwifiex_dump_station_info(priv, NULL, sinfo);
1349 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1350 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1351 HostCmd_ACT_GEN_GET, 0, NULL, true);
1352
1353 if (node && (&node->list == &priv->sta_list)) {
1354 node = NULL;
1355 return -ENOENT;
1356 }
1357
1358 node = list_prepare_entry(node, &priv->sta_list, list);
1359 list_for_each_entry_continue(node, &priv->sta_list, list) {
1360 ether_addr_copy(mac, node->mac_addr);
1361 return mwifiex_dump_station_info(priv, node, sinfo);
1362 }
1363 }
1364
1365 return -ENOENT;
1366 }
1367
1368 static int
1369 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1370 int idx, struct survey_info *survey)
1371 {
1372 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1373 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1374 enum ieee80211_band band;
1375
1376 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1377
1378 memset(survey, 0, sizeof(struct survey_info));
1379
1380 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1381 priv->media_connected && idx == 0) {
1382 u8 curr_bss_band = priv->curr_bss_params.band;
1383 u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1384
1385 band = mwifiex_band_to_radio_type(curr_bss_band);
1386 survey->channel = ieee80211_get_channel(wiphy,
1387 ieee80211_channel_to_frequency(chan, band));
1388
1389 if (priv->bcn_nf_last) {
1390 survey->filled = SURVEY_INFO_NOISE_DBM;
1391 survey->noise = priv->bcn_nf_last;
1392 }
1393 return 0;
1394 }
1395
1396 if (idx >= priv->adapter->num_in_chan_stats)
1397 return -ENOENT;
1398
1399 if (!pchan_stats[idx].cca_scan_dur)
1400 return 0;
1401
1402 band = pchan_stats[idx].bandcfg;
1403 survey->channel = ieee80211_get_channel(wiphy,
1404 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1405 survey->filled = SURVEY_INFO_NOISE_DBM |
1406 SURVEY_INFO_TIME |
1407 SURVEY_INFO_TIME_BUSY;
1408 survey->noise = pchan_stats[idx].noise;
1409 survey->time = pchan_stats[idx].cca_scan_dur;
1410 survey->time_busy = pchan_stats[idx].cca_busy_dur;
1411
1412 return 0;
1413 }
1414
1415 /* Supported rates to be advertised to the cfg80211 */
1416 static struct ieee80211_rate mwifiex_rates[] = {
1417 {.bitrate = 10, .hw_value = 2, },
1418 {.bitrate = 20, .hw_value = 4, },
1419 {.bitrate = 55, .hw_value = 11, },
1420 {.bitrate = 110, .hw_value = 22, },
1421 {.bitrate = 60, .hw_value = 12, },
1422 {.bitrate = 90, .hw_value = 18, },
1423 {.bitrate = 120, .hw_value = 24, },
1424 {.bitrate = 180, .hw_value = 36, },
1425 {.bitrate = 240, .hw_value = 48, },
1426 {.bitrate = 360, .hw_value = 72, },
1427 {.bitrate = 480, .hw_value = 96, },
1428 {.bitrate = 540, .hw_value = 108, },
1429 };
1430
1431 /* Channel definitions to be advertised to cfg80211 */
1432 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1433 {.center_freq = 2412, .hw_value = 1, },
1434 {.center_freq = 2417, .hw_value = 2, },
1435 {.center_freq = 2422, .hw_value = 3, },
1436 {.center_freq = 2427, .hw_value = 4, },
1437 {.center_freq = 2432, .hw_value = 5, },
1438 {.center_freq = 2437, .hw_value = 6, },
1439 {.center_freq = 2442, .hw_value = 7, },
1440 {.center_freq = 2447, .hw_value = 8, },
1441 {.center_freq = 2452, .hw_value = 9, },
1442 {.center_freq = 2457, .hw_value = 10, },
1443 {.center_freq = 2462, .hw_value = 11, },
1444 {.center_freq = 2467, .hw_value = 12, },
1445 {.center_freq = 2472, .hw_value = 13, },
1446 {.center_freq = 2484, .hw_value = 14, },
1447 };
1448
1449 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1450 .channels = mwifiex_channels_2ghz,
1451 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1452 .bitrates = mwifiex_rates,
1453 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1454 };
1455
1456 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1457 {.center_freq = 5040, .hw_value = 8, },
1458 {.center_freq = 5060, .hw_value = 12, },
1459 {.center_freq = 5080, .hw_value = 16, },
1460 {.center_freq = 5170, .hw_value = 34, },
1461 {.center_freq = 5190, .hw_value = 38, },
1462 {.center_freq = 5210, .hw_value = 42, },
1463 {.center_freq = 5230, .hw_value = 46, },
1464 {.center_freq = 5180, .hw_value = 36, },
1465 {.center_freq = 5200, .hw_value = 40, },
1466 {.center_freq = 5220, .hw_value = 44, },
1467 {.center_freq = 5240, .hw_value = 48, },
1468 {.center_freq = 5260, .hw_value = 52, },
1469 {.center_freq = 5280, .hw_value = 56, },
1470 {.center_freq = 5300, .hw_value = 60, },
1471 {.center_freq = 5320, .hw_value = 64, },
1472 {.center_freq = 5500, .hw_value = 100, },
1473 {.center_freq = 5520, .hw_value = 104, },
1474 {.center_freq = 5540, .hw_value = 108, },
1475 {.center_freq = 5560, .hw_value = 112, },
1476 {.center_freq = 5580, .hw_value = 116, },
1477 {.center_freq = 5600, .hw_value = 120, },
1478 {.center_freq = 5620, .hw_value = 124, },
1479 {.center_freq = 5640, .hw_value = 128, },
1480 {.center_freq = 5660, .hw_value = 132, },
1481 {.center_freq = 5680, .hw_value = 136, },
1482 {.center_freq = 5700, .hw_value = 140, },
1483 {.center_freq = 5745, .hw_value = 149, },
1484 {.center_freq = 5765, .hw_value = 153, },
1485 {.center_freq = 5785, .hw_value = 157, },
1486 {.center_freq = 5805, .hw_value = 161, },
1487 {.center_freq = 5825, .hw_value = 165, },
1488 };
1489
1490 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1491 .channels = mwifiex_channels_5ghz,
1492 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1493 .bitrates = mwifiex_rates + 4,
1494 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1495 };
1496
1497
1498 /* Supported crypto cipher suits to be advertised to cfg80211 */
1499 static const u32 mwifiex_cipher_suites[] = {
1500 WLAN_CIPHER_SUITE_WEP40,
1501 WLAN_CIPHER_SUITE_WEP104,
1502 WLAN_CIPHER_SUITE_TKIP,
1503 WLAN_CIPHER_SUITE_CCMP,
1504 WLAN_CIPHER_SUITE_AES_CMAC,
1505 };
1506
1507 /* Supported mgmt frame types to be advertised to cfg80211 */
1508 static const struct ieee80211_txrx_stypes
1509 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1510 [NL80211_IFTYPE_STATION] = {
1511 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1512 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1513 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1514 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1515 },
1516 [NL80211_IFTYPE_AP] = {
1517 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1518 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1519 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1520 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1521 },
1522 [NL80211_IFTYPE_P2P_CLIENT] = {
1523 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1524 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1525 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1526 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1527 },
1528 [NL80211_IFTYPE_P2P_GO] = {
1529 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1530 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1531 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1532 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1533 },
1534 };
1535
1536 /*
1537 * CFG802.11 operation handler for setting bit rates.
1538 *
1539 * Function configures data rates to firmware using bitrate mask
1540 * provided by cfg80211.
1541 */
1542 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1543 struct net_device *dev,
1544 const u8 *peer,
1545 const struct cfg80211_bitrate_mask *mask)
1546 {
1547 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1548 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1549 enum ieee80211_band band;
1550 struct mwifiex_adapter *adapter = priv->adapter;
1551
1552 if (!priv->media_connected) {
1553 mwifiex_dbg(adapter, ERROR,
1554 "Can not set Tx data rate in disconnected state\n");
1555 return -EINVAL;
1556 }
1557
1558 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1559
1560 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1561
1562 /* Fill HR/DSSS rates. */
1563 if (band == IEEE80211_BAND_2GHZ)
1564 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1565
1566 /* Fill OFDM rates */
1567 if (band == IEEE80211_BAND_2GHZ)
1568 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1569 else
1570 bitmap_rates[1] = mask->control[band].legacy;
1571
1572 /* Fill HT MCS rates */
1573 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1574 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1575 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1576
1577 /* Fill VHT MCS rates */
1578 if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1579 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1580 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1581 bitmap_rates[11] = mask->control[band].vht_mcs[1];
1582 }
1583
1584 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1585 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1586 }
1587
1588 /*
1589 * CFG802.11 operation handler for connection quality monitoring.
1590 *
1591 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1592 * events to FW.
1593 */
1594 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1595 struct net_device *dev,
1596 s32 rssi_thold, u32 rssi_hyst)
1597 {
1598 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1599 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1600
1601 priv->cqm_rssi_thold = rssi_thold;
1602 priv->cqm_rssi_hyst = rssi_hyst;
1603
1604 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1605 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1606
1607 /* Subscribe/unsubscribe low and high rssi events */
1608 if (rssi_thold && rssi_hyst) {
1609 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1610 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1611 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1612 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1613 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1614 return mwifiex_send_cmd(priv,
1615 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1616 0, 0, &subsc_evt, true);
1617 } else {
1618 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1619 return mwifiex_send_cmd(priv,
1620 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1621 0, 0, &subsc_evt, true);
1622 }
1623
1624 return 0;
1625 }
1626
1627 /* cfg80211 operation handler for change_beacon.
1628 * Function retrieves and sets modified management IEs to FW.
1629 */
1630 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1631 struct net_device *dev,
1632 struct cfg80211_beacon_data *data)
1633 {
1634 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1635
1636 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1637 mwifiex_dbg(priv->adapter, ERROR,
1638 "%s: bss_type mismatched\n", __func__);
1639 return -EINVAL;
1640 }
1641
1642 if (!priv->bss_started) {
1643 mwifiex_dbg(priv->adapter, ERROR,
1644 "%s: bss not started\n", __func__);
1645 return -EINVAL;
1646 }
1647
1648 if (mwifiex_set_mgmt_ies(priv, data)) {
1649 mwifiex_dbg(priv->adapter, ERROR,
1650 "%s: setting mgmt ies failed\n", __func__);
1651 return -EFAULT;
1652 }
1653
1654 return 0;
1655 }
1656
1657 /* cfg80211 operation handler for del_station.
1658 * Function deauthenticates station which value is provided in mac parameter.
1659 * If mac is NULL/broadcast, all stations in associated station list are
1660 * deauthenticated. If bss is not started or there are no stations in
1661 * associated stations list, no action is taken.
1662 */
1663 static int
1664 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1665 struct station_del_parameters *params)
1666 {
1667 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1668 struct mwifiex_sta_node *sta_node;
1669 u8 deauth_mac[ETH_ALEN];
1670 unsigned long flags;
1671
1672 if (list_empty(&priv->sta_list) || !priv->bss_started)
1673 return 0;
1674
1675 if (!params->mac || is_broadcast_ether_addr(params->mac))
1676 return 0;
1677
1678 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1679 __func__, params->mac);
1680
1681 eth_zero_addr(deauth_mac);
1682
1683 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1684 sta_node = mwifiex_get_sta_entry(priv, params->mac);
1685 if (sta_node)
1686 ether_addr_copy(deauth_mac, params->mac);
1687 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1688
1689 if (is_valid_ether_addr(deauth_mac)) {
1690 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1691 HostCmd_ACT_GEN_SET, 0,
1692 deauth_mac, true))
1693 return -1;
1694 }
1695
1696 return 0;
1697 }
1698
1699 static int
1700 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1701 {
1702 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1703 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1704 MWIFIEX_BSS_ROLE_ANY);
1705 struct mwifiex_ds_ant_cfg ant_cfg;
1706
1707 if (!tx_ant || !rx_ant)
1708 return -EOPNOTSUPP;
1709
1710 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1711 /* Not a MIMO chip. User should provide specific antenna number
1712 * for Tx/Rx path or enable all antennas for diversity
1713 */
1714 if (tx_ant != rx_ant)
1715 return -EOPNOTSUPP;
1716
1717 if ((tx_ant & (tx_ant - 1)) &&
1718 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1719 return -EOPNOTSUPP;
1720
1721 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1722 (priv->adapter->number_of_antenna > 1)) {
1723 tx_ant = RF_ANTENNA_AUTO;
1724 rx_ant = RF_ANTENNA_AUTO;
1725 }
1726 } else {
1727 struct ieee80211_sta_ht_cap *ht_info;
1728 int rx_mcs_supp;
1729 enum ieee80211_band band;
1730
1731 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1732 adapter->user_dev_mcs_support = HT_STREAM_1X1;
1733 if (adapter->is_hw_11ac_capable)
1734 adapter->usr_dot_11ac_mcs_support =
1735 MWIFIEX_11AC_MCS_MAP_1X1;
1736 } else {
1737 adapter->user_dev_mcs_support = HT_STREAM_2X2;
1738 if (adapter->is_hw_11ac_capable)
1739 adapter->usr_dot_11ac_mcs_support =
1740 MWIFIEX_11AC_MCS_MAP_2X2;
1741 }
1742
1743 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1744 if (!adapter->wiphy->bands[band])
1745 continue;
1746
1747 ht_info = &adapter->wiphy->bands[band]->ht_cap;
1748 rx_mcs_supp =
1749 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1750 memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1751 memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1752 }
1753 }
1754
1755 ant_cfg.tx_ant = tx_ant;
1756 ant_cfg.rx_ant = rx_ant;
1757
1758 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1759 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1760 }
1761
1762 /* cfg80211 operation handler for stop ap.
1763 * Function stops BSS running at uAP interface.
1764 */
1765 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1766 {
1767 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1768
1769 mwifiex_abort_cac(priv);
1770
1771 if (mwifiex_del_mgmt_ies(priv))
1772 mwifiex_dbg(priv->adapter, ERROR,
1773 "Failed to delete mgmt IEs!\n");
1774
1775 priv->ap_11n_enabled = 0;
1776 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1777
1778 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1779 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1780 mwifiex_dbg(priv->adapter, ERROR,
1781 "Failed to stop the BSS\n");
1782 return -1;
1783 }
1784
1785 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1786 HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1787 mwifiex_dbg(priv->adapter, ERROR,
1788 "Failed to reset BSS\n");
1789 return -1;
1790 }
1791
1792 return 0;
1793 }
1794
1795 /* cfg80211 operation handler for start_ap.
1796 * Function sets beacon period, DTIM period, SSID and security into
1797 * AP config structure.
1798 * AP is configured with these settings and BSS is started.
1799 */
1800 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1801 struct net_device *dev,
1802 struct cfg80211_ap_settings *params)
1803 {
1804 struct mwifiex_uap_bss_param *bss_cfg;
1805 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1806
1807 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1808 return -1;
1809
1810 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1811 if (!bss_cfg)
1812 return -ENOMEM;
1813
1814 mwifiex_set_sys_config_invalid_data(bss_cfg);
1815
1816 if (params->beacon_interval)
1817 bss_cfg->beacon_period = params->beacon_interval;
1818 if (params->dtim_period)
1819 bss_cfg->dtim_period = params->dtim_period;
1820
1821 if (params->ssid && params->ssid_len) {
1822 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1823 bss_cfg->ssid.ssid_len = params->ssid_len;
1824 }
1825 if (params->inactivity_timeout > 0) {
1826 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1827 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1828 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1829 }
1830
1831 switch (params->hidden_ssid) {
1832 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1833 bss_cfg->bcast_ssid_ctl = 1;
1834 break;
1835 case NL80211_HIDDEN_SSID_ZERO_LEN:
1836 bss_cfg->bcast_ssid_ctl = 0;
1837 break;
1838 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1839 /* firmware doesn't support this type of hidden SSID */
1840 default:
1841 kfree(bss_cfg);
1842 return -EINVAL;
1843 }
1844
1845 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1846 mwifiex_set_uap_rates(bss_cfg, params);
1847
1848 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1849 kfree(bss_cfg);
1850 mwifiex_dbg(priv->adapter, ERROR,
1851 "Failed to parse secuirty parameters!\n");
1852 return -1;
1853 }
1854
1855 mwifiex_set_ht_params(priv, bss_cfg, params);
1856
1857 if (priv->adapter->is_hw_11ac_capable) {
1858 mwifiex_set_vht_params(priv, bss_cfg, params);
1859 mwifiex_set_vht_width(priv, params->chandef.width,
1860 priv->ap_11ac_enabled);
1861 }
1862
1863 if (priv->ap_11ac_enabled)
1864 mwifiex_set_11ac_ba_params(priv);
1865 else
1866 mwifiex_set_ba_params(priv);
1867
1868 mwifiex_set_wmm_params(priv, bss_cfg, params);
1869
1870 if (mwifiex_is_11h_active(priv))
1871 mwifiex_set_tpc_params(priv, bss_cfg, params);
1872
1873 if (mwifiex_is_11h_active(priv) &&
1874 !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
1875 priv->bss_mode)) {
1876 mwifiex_dbg(priv->adapter, INFO,
1877 "Disable 11h extensions in FW\n");
1878 if (mwifiex_11h_activate(priv, false)) {
1879 mwifiex_dbg(priv->adapter, ERROR,
1880 "Failed to disable 11h extensions!!");
1881 return -1;
1882 }
1883 priv->state_11h.is_11h_active = false;
1884 }
1885
1886 if (mwifiex_config_start_uap(priv, bss_cfg)) {
1887 mwifiex_dbg(priv->adapter, ERROR,
1888 "Failed to start AP\n");
1889 kfree(bss_cfg);
1890 return -1;
1891 }
1892
1893 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1894 return -1;
1895
1896 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
1897 kfree(bss_cfg);
1898 return 0;
1899 }
1900
1901 /*
1902 * CFG802.11 operation handler for disconnection request.
1903 *
1904 * This function does not work when there is already a disconnection
1905 * procedure going on.
1906 */
1907 static int
1908 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1909 u16 reason_code)
1910 {
1911 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1912
1913 if (mwifiex_deauthenticate(priv, NULL))
1914 return -EFAULT;
1915
1916 mwifiex_dbg(priv->adapter, MSG,
1917 "info: successfully disconnected from %pM:\t"
1918 "reason code %d\n", priv->cfg_bssid, reason_code);
1919
1920 eth_zero_addr(priv->cfg_bssid);
1921 priv->hs2_enabled = false;
1922
1923 return 0;
1924 }
1925
1926 /*
1927 * This function informs the CFG802.11 subsystem of a new IBSS.
1928 *
1929 * The following information are sent to the CFG802.11 subsystem
1930 * to register the new IBSS. If we do not register the new IBSS,
1931 * a kernel panic will result.
1932 * - SSID
1933 * - SSID length
1934 * - BSSID
1935 * - Channel
1936 */
1937 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1938 {
1939 struct ieee80211_channel *chan;
1940 struct mwifiex_bss_info bss_info;
1941 struct cfg80211_bss *bss;
1942 int ie_len;
1943 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1944 enum ieee80211_band band;
1945
1946 if (mwifiex_get_bss_info(priv, &bss_info))
1947 return -1;
1948
1949 ie_buf[0] = WLAN_EID_SSID;
1950 ie_buf[1] = bss_info.ssid.ssid_len;
1951
1952 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1953 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1954 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1955
1956 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1957 chan = __ieee80211_get_channel(priv->wdev.wiphy,
1958 ieee80211_channel_to_frequency(bss_info.bss_chan,
1959 band));
1960
1961 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
1962 CFG80211_BSS_FTYPE_UNKNOWN,
1963 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1964 0, ie_buf, ie_len, 0, GFP_KERNEL);
1965 cfg80211_put_bss(priv->wdev.wiphy, bss);
1966 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1967
1968 return 0;
1969 }
1970
1971 /*
1972 * This function connects with a BSS.
1973 *
1974 * This function handles both Infra and Ad-Hoc modes. It also performs
1975 * validity checking on the provided parameters, disconnects from the
1976 * current BSS (if any), sets up the association/scan parameters,
1977 * including security settings, and performs specific SSID scan before
1978 * trying to connect.
1979 *
1980 * For Infra mode, the function returns failure if the specified SSID
1981 * is not found in scan table. However, for Ad-Hoc mode, it can create
1982 * the IBSS if it does not exist. On successful completion in either case,
1983 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1984 */
1985 static int
1986 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
1987 const u8 *ssid, const u8 *bssid, int mode,
1988 struct ieee80211_channel *channel,
1989 struct cfg80211_connect_params *sme, bool privacy)
1990 {
1991 struct cfg80211_ssid req_ssid;
1992 int ret, auth_type = 0;
1993 struct cfg80211_bss *bss = NULL;
1994 u8 is_scanning_required = 0;
1995
1996 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1997
1998 req_ssid.ssid_len = ssid_len;
1999 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2000 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2001 return -EINVAL;
2002 }
2003
2004 memcpy(req_ssid.ssid, ssid, ssid_len);
2005 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2006 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2007 return -EINVAL;
2008 }
2009
2010 /* As this is new association, clear locally stored
2011 * keys and security related flags */
2012 priv->sec_info.wpa_enabled = false;
2013 priv->sec_info.wpa2_enabled = false;
2014 priv->wep_key_curr_index = 0;
2015 priv->sec_info.encryption_mode = 0;
2016 priv->sec_info.is_authtype_auto = 0;
2017 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2018
2019 if (mode == NL80211_IFTYPE_ADHOC) {
2020 /* "privacy" is set only for ad-hoc mode */
2021 if (privacy) {
2022 /*
2023 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2024 * the firmware can find a matching network from the
2025 * scan. The cfg80211 does not give us the encryption
2026 * mode at this stage so just setting it to WEP here.
2027 */
2028 priv->sec_info.encryption_mode =
2029 WLAN_CIPHER_SUITE_WEP104;
2030 priv->sec_info.authentication_mode =
2031 NL80211_AUTHTYPE_OPEN_SYSTEM;
2032 }
2033
2034 goto done;
2035 }
2036
2037 /* Now handle infra mode. "sme" is valid for infra mode only */
2038 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2039 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2040 priv->sec_info.is_authtype_auto = 1;
2041 } else {
2042 auth_type = sme->auth_type;
2043 }
2044
2045 if (sme->crypto.n_ciphers_pairwise) {
2046 priv->sec_info.encryption_mode =
2047 sme->crypto.ciphers_pairwise[0];
2048 priv->sec_info.authentication_mode = auth_type;
2049 }
2050
2051 if (sme->crypto.cipher_group) {
2052 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2053 priv->sec_info.authentication_mode = auth_type;
2054 }
2055 if (sme->ie)
2056 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2057
2058 if (sme->key) {
2059 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2060 mwifiex_dbg(priv->adapter, INFO,
2061 "info: setting wep encryption\t"
2062 "with key len %d\n", sme->key_len);
2063 priv->wep_key_curr_index = sme->key_idx;
2064 ret = mwifiex_set_encode(priv, NULL, sme->key,
2065 sme->key_len, sme->key_idx,
2066 NULL, 0);
2067 }
2068 }
2069 done:
2070 /*
2071 * Scan entries are valid for some time (15 sec). So we can save one
2072 * active scan time if we just try cfg80211_get_bss first. If it fails
2073 * then request scan and cfg80211_get_bss() again for final output.
2074 */
2075 while (1) {
2076 if (is_scanning_required) {
2077 /* Do specific SSID scanning */
2078 if (mwifiex_request_scan(priv, &req_ssid)) {
2079 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2080 return -EFAULT;
2081 }
2082 }
2083
2084 /* Find the BSS we want using available scan results */
2085 if (mode == NL80211_IFTYPE_ADHOC)
2086 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2087 bssid, ssid, ssid_len,
2088 IEEE80211_BSS_TYPE_IBSS,
2089 IEEE80211_PRIVACY_ANY);
2090 else
2091 bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2092 bssid, ssid, ssid_len,
2093 IEEE80211_BSS_TYPE_ESS,
2094 IEEE80211_PRIVACY_ANY);
2095
2096 if (!bss) {
2097 if (is_scanning_required) {
2098 mwifiex_dbg(priv->adapter, WARN,
2099 "assoc: requested bss not found in scan results\n");
2100 break;
2101 }
2102 is_scanning_required = 1;
2103 } else {
2104 mwifiex_dbg(priv->adapter, MSG,
2105 "info: trying to associate to '%s' bssid %pM\n",
2106 (char *)req_ssid.ssid, bss->bssid);
2107 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2108 break;
2109 }
2110 }
2111
2112 ret = mwifiex_bss_start(priv, bss, &req_ssid);
2113 if (ret)
2114 return ret;
2115
2116 if (mode == NL80211_IFTYPE_ADHOC) {
2117 /* Inform the BSS information to kernel, otherwise
2118 * kernel will give a panic after successful assoc */
2119 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2120 return -EFAULT;
2121 }
2122
2123 return ret;
2124 }
2125
2126 /*
2127 * CFG802.11 operation handler for association request.
2128 *
2129 * This function does not work when the current mode is set to Ad-Hoc, or
2130 * when there is already an association procedure going on. The given BSS
2131 * information is used to associate.
2132 */
2133 static int
2134 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2135 struct cfg80211_connect_params *sme)
2136 {
2137 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2138 struct mwifiex_adapter *adapter = priv->adapter;
2139 int ret;
2140
2141 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2142 mwifiex_dbg(adapter, ERROR,
2143 "%s: reject infra assoc request in non-STA role\n",
2144 dev->name);
2145 return -EINVAL;
2146 }
2147
2148 if (priv->wdev.current_bss) {
2149 mwifiex_dbg(adapter, ERROR,
2150 "%s: already connected\n", dev->name);
2151 return -EALREADY;
2152 }
2153
2154 if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2155 mwifiex_dbg(adapter, ERROR,
2156 "%s: Ignore connection.\t"
2157 "Card removed or FW in bad state\n",
2158 dev->name);
2159 return -EFAULT;
2160 }
2161
2162 mwifiex_dbg(adapter, INFO,
2163 "info: Trying to associate to %s and bssid %pM\n",
2164 (char *)sme->ssid, sme->bssid);
2165
2166 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2167 priv->bss_mode, sme->channel, sme, 0);
2168 if (!ret) {
2169 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2170 NULL, 0, WLAN_STATUS_SUCCESS,
2171 GFP_KERNEL);
2172 mwifiex_dbg(priv->adapter, MSG,
2173 "info: associated to bssid %pM successfully\n",
2174 priv->cfg_bssid);
2175 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2176 priv->adapter->auto_tdls &&
2177 priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2178 mwifiex_setup_auto_tdls_timer(priv);
2179 } else {
2180 mwifiex_dbg(priv->adapter, ERROR,
2181 "info: association to bssid %pM failed\n",
2182 priv->cfg_bssid);
2183 eth_zero_addr(priv->cfg_bssid);
2184
2185 if (ret > 0)
2186 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2187 NULL, 0, NULL, 0, ret,
2188 GFP_KERNEL);
2189 else
2190 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2191 NULL, 0, NULL, 0,
2192 WLAN_STATUS_UNSPECIFIED_FAILURE,
2193 GFP_KERNEL);
2194 }
2195
2196 return 0;
2197 }
2198
2199 /*
2200 * This function sets following parameters for ibss network.
2201 * - channel
2202 * - start band
2203 * - 11n flag
2204 * - secondary channel offset
2205 */
2206 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2207 struct cfg80211_ibss_params *params)
2208 {
2209 struct mwifiex_adapter *adapter = priv->adapter;
2210 int index = 0, i;
2211 u8 config_bands = 0;
2212
2213 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
2214 if (!params->basic_rates) {
2215 config_bands = BAND_B | BAND_G;
2216 } else {
2217 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2218 /*
2219 * Rates below 6 Mbps in the table are CCK
2220 * rates; 802.11b and from 6 they are OFDM;
2221 * 802.11G
2222 */
2223 if (mwifiex_rates[i].bitrate == 60) {
2224 index = 1 << i;
2225 break;
2226 }
2227 }
2228
2229 if (params->basic_rates < index) {
2230 config_bands = BAND_B;
2231 } else {
2232 config_bands = BAND_G;
2233 if (params->basic_rates % index)
2234 config_bands |= BAND_B;
2235 }
2236 }
2237
2238 if (cfg80211_get_chandef_type(&params->chandef) !=
2239 NL80211_CHAN_NO_HT)
2240 config_bands |= BAND_G | BAND_GN;
2241 } else {
2242 if (cfg80211_get_chandef_type(&params->chandef) ==
2243 NL80211_CHAN_NO_HT)
2244 config_bands = BAND_A;
2245 else
2246 config_bands = BAND_AN | BAND_A;
2247 }
2248
2249 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2250 adapter->config_bands = config_bands;
2251 adapter->adhoc_start_band = config_bands;
2252
2253 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2254 adapter->adhoc_11n_enabled = true;
2255 else
2256 adapter->adhoc_11n_enabled = false;
2257 }
2258
2259 adapter->sec_chan_offset =
2260 mwifiex_chan_type_to_sec_chan_offset(
2261 cfg80211_get_chandef_type(&params->chandef));
2262 priv->adhoc_channel = ieee80211_frequency_to_channel(
2263 params->chandef.chan->center_freq);
2264
2265 mwifiex_dbg(adapter, INFO,
2266 "info: set ibss band %d, chan %d, chan offset %d\n",
2267 config_bands, priv->adhoc_channel,
2268 adapter->sec_chan_offset);
2269
2270 return 0;
2271 }
2272
2273 /*
2274 * CFG802.11 operation handler to join an IBSS.
2275 *
2276 * This function does not work in any mode other than Ad-Hoc, or if
2277 * a join operation is already in progress.
2278 */
2279 static int
2280 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2281 struct cfg80211_ibss_params *params)
2282 {
2283 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2284 int ret = 0;
2285
2286 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2287 mwifiex_dbg(priv->adapter, ERROR,
2288 "request to join ibss received\t"
2289 "when station is not in ibss mode\n");
2290 goto done;
2291 }
2292
2293 mwifiex_dbg(priv->adapter, MSG,
2294 "info: trying to join to %s and bssid %pM\n",
2295 (char *)params->ssid, params->bssid);
2296
2297 mwifiex_set_ibss_params(priv, params);
2298
2299 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2300 params->bssid, priv->bss_mode,
2301 params->chandef.chan, NULL,
2302 params->privacy);
2303 done:
2304 if (!ret) {
2305 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2306 params->chandef.chan, GFP_KERNEL);
2307 mwifiex_dbg(priv->adapter, MSG,
2308 "info: joined/created adhoc network with bssid\t"
2309 "%pM successfully\n", priv->cfg_bssid);
2310 } else {
2311 mwifiex_dbg(priv->adapter, ERROR,
2312 "info: failed creating/joining adhoc network\n");
2313 }
2314
2315 return ret;
2316 }
2317
2318 /*
2319 * CFG802.11 operation handler to leave an IBSS.
2320 *
2321 * This function does not work if a leave operation is
2322 * already in progress.
2323 */
2324 static int
2325 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2326 {
2327 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2328
2329 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2330 priv->cfg_bssid);
2331 if (mwifiex_deauthenticate(priv, NULL))
2332 return -EFAULT;
2333
2334 eth_zero_addr(priv->cfg_bssid);
2335
2336 return 0;
2337 }
2338
2339 /*
2340 * CFG802.11 operation handler for scan request.
2341 *
2342 * This function issues a scan request to the firmware based upon
2343 * the user specified scan configuration. On successfull completion,
2344 * it also informs the results.
2345 */
2346 static int
2347 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2348 struct cfg80211_scan_request *request)
2349 {
2350 struct net_device *dev = request->wdev->netdev;
2351 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2352 int i, offset, ret;
2353 struct ieee80211_channel *chan;
2354 struct ieee_types_header *ie;
2355 struct mwifiex_user_scan_cfg *user_scan_cfg;
2356
2357 mwifiex_dbg(priv->adapter, CMD,
2358 "info: received scan request on %s\n", dev->name);
2359
2360 /* Block scan request if scan operation or scan cleanup when interface
2361 * is disabled is in process
2362 */
2363 if (priv->scan_request || priv->scan_aborting) {
2364 mwifiex_dbg(priv->adapter, WARN,
2365 "cmd: Scan already in process..\n");
2366 return -EBUSY;
2367 }
2368
2369 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2370 if (!user_scan_cfg)
2371 return -ENOMEM;
2372
2373 priv->scan_request = request;
2374
2375 user_scan_cfg->num_ssids = request->n_ssids;
2376 user_scan_cfg->ssid_list = request->ssids;
2377
2378 if (request->ie && request->ie_len) {
2379 offset = 0;
2380 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2381 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2382 continue;
2383 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2384 ie = (struct ieee_types_header *)(request->ie + offset);
2385 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2386 offset += sizeof(*ie) + ie->len;
2387
2388 if (offset >= request->ie_len)
2389 break;
2390 }
2391 }
2392
2393 for (i = 0; i < min_t(u32, request->n_channels,
2394 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2395 chan = request->channels[i];
2396 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2397 user_scan_cfg->chan_list[i].radio_type = chan->band;
2398
2399 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2400 user_scan_cfg->chan_list[i].scan_type =
2401 MWIFIEX_SCAN_TYPE_PASSIVE;
2402 else
2403 user_scan_cfg->chan_list[i].scan_type =
2404 MWIFIEX_SCAN_TYPE_ACTIVE;
2405
2406 user_scan_cfg->chan_list[i].scan_time = 0;
2407 }
2408
2409 if (priv->adapter->scan_chan_gap_enabled &&
2410 mwifiex_is_any_intf_active(priv))
2411 user_scan_cfg->scan_chan_gap =
2412 priv->adapter->scan_chan_gap_time;
2413
2414 ret = mwifiex_scan_networks(priv, user_scan_cfg);
2415 kfree(user_scan_cfg);
2416 if (ret) {
2417 mwifiex_dbg(priv->adapter, ERROR,
2418 "scan failed: %d\n", ret);
2419 priv->scan_aborting = false;
2420 priv->scan_request = NULL;
2421 return ret;
2422 }
2423
2424 if (request->ie && request->ie_len) {
2425 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2426 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2427 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2428 memset(&priv->vs_ie[i].ie, 0,
2429 MWIFIEX_MAX_VSIE_LEN);
2430 }
2431 }
2432 }
2433 return 0;
2434 }
2435
2436 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2437 struct mwifiex_private *priv)
2438 {
2439 struct mwifiex_adapter *adapter = priv->adapter;
2440
2441 vht_info->vht_supported = true;
2442
2443 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2444 /* Update MCS support for VHT */
2445 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2446 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2447 vht_info->vht_mcs.rx_highest = 0;
2448 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2449 adapter->hw_dot_11ac_mcs_support >> 16);
2450 vht_info->vht_mcs.tx_highest = 0;
2451 }
2452
2453 /*
2454 * This function sets up the CFG802.11 specific HT capability fields
2455 * with default values.
2456 *
2457 * The following default values are set -
2458 * - HT Supported = True
2459 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2460 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2461 * - HT Capabilities supported by firmware
2462 * - MCS information, Rx mask = 0xff
2463 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2464 */
2465 static void
2466 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2467 struct mwifiex_private *priv)
2468 {
2469 int rx_mcs_supp;
2470 struct ieee80211_mcs_info mcs_set;
2471 u8 *mcs = (u8 *)&mcs_set;
2472 struct mwifiex_adapter *adapter = priv->adapter;
2473
2474 ht_info->ht_supported = true;
2475 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2476 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2477
2478 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2479
2480 /* Fill HT capability information */
2481 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2482 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2483 else
2484 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2485
2486 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2487 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2488 else
2489 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2490
2491 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2492 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2493 else
2494 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2495
2496 if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2497 ht_info->cap |= 3 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2498 else
2499 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2500
2501 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2502 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2503 else
2504 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2505
2506 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2507 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2508 else
2509 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2510
2511 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2512 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2513 else
2514 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2515
2516 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2517 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2518 else
2519 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2520
2521 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2522 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2523
2524 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2525 /* Set MCS for 1x1/2x2 */
2526 memset(mcs, 0xff, rx_mcs_supp);
2527 /* Clear all the other values */
2528 memset(&mcs[rx_mcs_supp], 0,
2529 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2530 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2531 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2532 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2533 SETHT_MCS32(mcs_set.rx_mask);
2534
2535 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2536
2537 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2538 }
2539
2540 /*
2541 * create a new virtual interface with the given name and name assign type
2542 */
2543 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2544 const char *name,
2545 unsigned char name_assign_type,
2546 enum nl80211_iftype type,
2547 u32 *flags,
2548 struct vif_params *params)
2549 {
2550 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2551 struct mwifiex_private *priv;
2552 struct net_device *dev;
2553 void *mdev_priv;
2554
2555 if (!adapter)
2556 return ERR_PTR(-EFAULT);
2557
2558 switch (type) {
2559 case NL80211_IFTYPE_UNSPECIFIED:
2560 case NL80211_IFTYPE_STATION:
2561 case NL80211_IFTYPE_ADHOC:
2562 if (adapter->curr_iface_comb.sta_intf ==
2563 adapter->iface_limit.sta_intf) {
2564 mwifiex_dbg(adapter, ERROR,
2565 "cannot create multiple sta/adhoc ifaces\n");
2566 return ERR_PTR(-EINVAL);
2567 }
2568
2569 priv = mwifiex_get_unused_priv(adapter);
2570 if (!priv) {
2571 mwifiex_dbg(adapter, ERROR,
2572 "could not get free private struct\n");
2573 return ERR_PTR(-EFAULT);
2574 }
2575
2576 priv->wdev.wiphy = wiphy;
2577 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2578
2579 if (type == NL80211_IFTYPE_UNSPECIFIED)
2580 priv->bss_mode = NL80211_IFTYPE_STATION;
2581 else
2582 priv->bss_mode = type;
2583
2584 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2585 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2586 priv->bss_priority = 0;
2587 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2588 priv->bss_num = adapter->curr_iface_comb.sta_intf;
2589
2590 break;
2591 case NL80211_IFTYPE_AP:
2592 if (adapter->curr_iface_comb.uap_intf ==
2593 adapter->iface_limit.uap_intf) {
2594 mwifiex_dbg(adapter, ERROR,
2595 "cannot create multiple AP ifaces\n");
2596 return ERR_PTR(-EINVAL);
2597 }
2598
2599 priv = mwifiex_get_unused_priv(adapter);
2600 if (!priv) {
2601 mwifiex_dbg(adapter, ERROR,
2602 "could not get free private struct\n");
2603 return ERR_PTR(-EFAULT);
2604 }
2605
2606 priv->wdev.wiphy = wiphy;
2607 priv->wdev.iftype = NL80211_IFTYPE_AP;
2608
2609 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2610 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2611 priv->bss_priority = 0;
2612 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2613 priv->bss_started = 0;
2614 priv->bss_num = adapter->curr_iface_comb.uap_intf;
2615 priv->bss_mode = type;
2616
2617 break;
2618 case NL80211_IFTYPE_P2P_CLIENT:
2619 if (adapter->curr_iface_comb.p2p_intf ==
2620 adapter->iface_limit.p2p_intf) {
2621 mwifiex_dbg(adapter, ERROR,
2622 "cannot create multiple P2P ifaces\n");
2623 return ERR_PTR(-EINVAL);
2624 }
2625
2626 priv = mwifiex_get_unused_priv(adapter);
2627 if (!priv) {
2628 mwifiex_dbg(adapter, ERROR,
2629 "could not get free private struct\n");
2630 return ERR_PTR(-EFAULT);
2631 }
2632
2633 priv->wdev.wiphy = wiphy;
2634 /* At start-up, wpa_supplicant tries to change the interface
2635 * to NL80211_IFTYPE_STATION if it is not managed mode.
2636 */
2637 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2638 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2639
2640 /* Setting bss_type to P2P tells firmware that this interface
2641 * is receiving P2P peers found during find phase and doing
2642 * action frame handshake.
2643 */
2644 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2645
2646 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2647 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2648 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2649 priv->bss_started = 0;
2650 priv->bss_num = adapter->curr_iface_comb.p2p_intf;
2651
2652 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2653 memset(&priv->wdev, 0, sizeof(priv->wdev));
2654 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2655 return ERR_PTR(-EFAULT);
2656 }
2657
2658 break;
2659 default:
2660 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2661 return ERR_PTR(-EINVAL);
2662 }
2663
2664 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2665 name_assign_type, ether_setup,
2666 IEEE80211_NUM_ACS, 1);
2667 if (!dev) {
2668 mwifiex_dbg(adapter, ERROR,
2669 "no memory available for netdevice\n");
2670 memset(&priv->wdev, 0, sizeof(priv->wdev));
2671 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2672 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2673 return ERR_PTR(-ENOMEM);
2674 }
2675
2676 mwifiex_init_priv_params(priv, dev);
2677 priv->netdev = dev;
2678
2679 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2680 if (adapter->is_hw_11ac_capable)
2681 mwifiex_setup_vht_caps(
2682 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2683
2684 if (adapter->config_bands & BAND_A)
2685 mwifiex_setup_ht_caps(
2686 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2687
2688 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2689 mwifiex_setup_vht_caps(
2690 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2691
2692 dev_net_set(dev, wiphy_net(wiphy));
2693 dev->ieee80211_ptr = &priv->wdev;
2694 dev->ieee80211_ptr->iftype = priv->bss_mode;
2695 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2696 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2697
2698 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2699 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2700 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2701 dev->ethtool_ops = &mwifiex_ethtool_ops;
2702
2703 mdev_priv = netdev_priv(dev);
2704 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2705
2706 SET_NETDEV_DEV(dev, adapter->dev);
2707
2708 /* Register network device */
2709 if (register_netdevice(dev)) {
2710 mwifiex_dbg(adapter, ERROR,
2711 "cannot register virtual network device\n");
2712 free_netdev(dev);
2713 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2714 priv->netdev = NULL;
2715 memset(&priv->wdev, 0, sizeof(priv->wdev));
2716 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2717 return ERR_PTR(-EFAULT);
2718 }
2719
2720 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
2721 WQ_HIGHPRI |
2722 WQ_MEM_RECLAIM |
2723 WQ_UNBOUND, 1, name);
2724 if (!priv->dfs_cac_workqueue) {
2725 mwifiex_dbg(adapter, ERROR,
2726 "cannot register virtual network device\n");
2727 free_netdev(dev);
2728 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2729 priv->netdev = NULL;
2730 memset(&priv->wdev, 0, sizeof(priv->wdev));
2731 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2732 return ERR_PTR(-ENOMEM);
2733 }
2734
2735 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
2736
2737 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
2738 WQ_HIGHPRI | WQ_UNBOUND |
2739 WQ_MEM_RECLAIM, 1, name);
2740 if (!priv->dfs_chan_sw_workqueue) {
2741 mwifiex_dbg(adapter, ERROR,
2742 "cannot register virtual network device\n");
2743 free_netdev(dev);
2744 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2745 priv->netdev = NULL;
2746 memset(&priv->wdev, 0, sizeof(priv->wdev));
2747 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2748 return ERR_PTR(-ENOMEM);
2749 }
2750
2751 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work,
2752 mwifiex_dfs_chan_sw_work_queue);
2753
2754 sema_init(&priv->async_sem, 1);
2755
2756 mwifiex_dbg(adapter, INFO,
2757 "info: %s: Marvell 802.11 Adapter\n", dev->name);
2758
2759 #ifdef CONFIG_DEBUG_FS
2760 mwifiex_dev_debugfs_init(priv);
2761 #endif
2762
2763 switch (type) {
2764 case NL80211_IFTYPE_UNSPECIFIED:
2765 case NL80211_IFTYPE_STATION:
2766 case NL80211_IFTYPE_ADHOC:
2767 adapter->curr_iface_comb.sta_intf++;
2768 break;
2769 case NL80211_IFTYPE_AP:
2770 adapter->curr_iface_comb.uap_intf++;
2771 break;
2772 case NL80211_IFTYPE_P2P_CLIENT:
2773 adapter->curr_iface_comb.p2p_intf++;
2774 break;
2775 default:
2776 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2777 return ERR_PTR(-EINVAL);
2778 }
2779
2780 return &priv->wdev;
2781 }
2782 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2783
2784 /*
2785 * del_virtual_intf: remove the virtual interface determined by dev
2786 */
2787 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2788 {
2789 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2790 struct mwifiex_adapter *adapter = priv->adapter;
2791
2792 #ifdef CONFIG_DEBUG_FS
2793 mwifiex_dev_debugfs_remove(priv);
2794 #endif
2795
2796 mwifiex_stop_net_dev_queue(priv->netdev, adapter);
2797
2798 if (netif_carrier_ok(priv->netdev))
2799 netif_carrier_off(priv->netdev);
2800
2801 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2802 unregister_netdevice(wdev->netdev);
2803
2804 if (priv->dfs_cac_workqueue) {
2805 flush_workqueue(priv->dfs_cac_workqueue);
2806 destroy_workqueue(priv->dfs_cac_workqueue);
2807 priv->dfs_cac_workqueue = NULL;
2808 }
2809
2810 if (priv->dfs_chan_sw_workqueue) {
2811 flush_workqueue(priv->dfs_chan_sw_workqueue);
2812 destroy_workqueue(priv->dfs_chan_sw_workqueue);
2813 priv->dfs_chan_sw_workqueue = NULL;
2814 }
2815 /* Clear the priv in adapter */
2816 priv->netdev->ieee80211_ptr = NULL;
2817 priv->netdev = NULL;
2818 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2819
2820 priv->media_connected = false;
2821
2822 switch (priv->bss_mode) {
2823 case NL80211_IFTYPE_UNSPECIFIED:
2824 case NL80211_IFTYPE_STATION:
2825 case NL80211_IFTYPE_ADHOC:
2826 adapter->curr_iface_comb.sta_intf++;
2827 break;
2828 case NL80211_IFTYPE_AP:
2829 adapter->curr_iface_comb.uap_intf++;
2830 break;
2831 case NL80211_IFTYPE_P2P_CLIENT:
2832 case NL80211_IFTYPE_P2P_GO:
2833 adapter->curr_iface_comb.p2p_intf++;
2834 break;
2835 default:
2836 mwifiex_dbg(adapter, ERROR,
2837 "del_virtual_intf: type not supported\n");
2838 break;
2839 }
2840
2841 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2842
2843 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA ||
2844 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
2845 kfree(priv->hist_data);
2846
2847 return 0;
2848 }
2849 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2850
2851 static bool
2852 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2853 u8 max_byte_seq)
2854 {
2855 int j, k, valid_byte_cnt = 0;
2856 bool dont_care_byte = false;
2857
2858 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2859 for (k = 0; k < 8; k++) {
2860 if (pat->mask[j] & 1 << k) {
2861 memcpy(byte_seq + valid_byte_cnt,
2862 &pat->pattern[j * 8 + k], 1);
2863 valid_byte_cnt++;
2864 if (dont_care_byte)
2865 return false;
2866 } else {
2867 if (valid_byte_cnt)
2868 dont_care_byte = true;
2869 }
2870
2871 if (valid_byte_cnt > max_byte_seq)
2872 return false;
2873 }
2874 }
2875
2876 byte_seq[max_byte_seq] = valid_byte_cnt;
2877
2878 return true;
2879 }
2880
2881 #ifdef CONFIG_PM
2882 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv,
2883 struct mwifiex_mef_entry *mef_entry)
2884 {
2885 int i, filt_num = 0, num_ipv4 = 0;
2886 struct in_device *in_dev;
2887 struct in_ifaddr *ifa;
2888 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR];
2889 struct mwifiex_adapter *adapter = priv->adapter;
2890
2891 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2892 mef_entry->action = MEF_ACTION_AUTO_ARP;
2893
2894 /* Enable ARP offload feature */
2895 memset(ips, 0, sizeof(ips));
2896 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) {
2897 if (adapter->priv[i]->netdev) {
2898 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev);
2899 if (!in_dev)
2900 continue;
2901 ifa = in_dev->ifa_list;
2902 if (!ifa || !ifa->ifa_local)
2903 continue;
2904 ips[i] = ifa->ifa_local;
2905 num_ipv4++;
2906 }
2907 }
2908
2909 for (i = 0; i < num_ipv4; i++) {
2910 if (!ips[i])
2911 continue;
2912 mef_entry->filter[filt_num].repeat = 1;
2913 memcpy(mef_entry->filter[filt_num].byte_seq,
2914 (u8 *)&ips[i], sizeof(ips[i]));
2915 mef_entry->filter[filt_num].
2916 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2917 sizeof(ips[i]);
2918 mef_entry->filter[filt_num].offset = 46;
2919 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2920 if (filt_num) {
2921 mef_entry->filter[filt_num].filt_action =
2922 TYPE_OR;
2923 }
2924 filt_num++;
2925 }
2926
2927 mef_entry->filter[filt_num].repeat = 1;
2928 mef_entry->filter[filt_num].byte_seq[0] = 0x08;
2929 mef_entry->filter[filt_num].byte_seq[1] = 0x06;
2930 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2;
2931 mef_entry->filter[filt_num].offset = 20;
2932 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2933 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2934 }
2935
2936 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv,
2937 struct mwifiex_ds_mef_cfg *mef_cfg,
2938 struct mwifiex_mef_entry *mef_entry,
2939 struct cfg80211_wowlan *wowlan)
2940 {
2941 int i, filt_num = 0, ret = 0;
2942 bool first_pat = true;
2943 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2944 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2945 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2946
2947 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2948 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2949
2950 for (i = 0; i < wowlan->n_patterns; i++) {
2951 memset(byte_seq, 0, sizeof(byte_seq));
2952 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2953 byte_seq,
2954 MWIFIEX_MEF_MAX_BYTESEQ)) {
2955 mwifiex_dbg(priv->adapter, ERROR,
2956 "Pattern not supported\n");
2957 kfree(mef_entry);
2958 return -EOPNOTSUPP;
2959 }
2960
2961 if (!wowlan->patterns[i].pkt_offset) {
2962 if (!(byte_seq[0] & 0x01) &&
2963 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2964 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2965 continue;
2966 } else if (is_broadcast_ether_addr(byte_seq)) {
2967 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST;
2968 continue;
2969 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2970 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2971 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2972 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2973 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST;
2974 continue;
2975 }
2976 }
2977 mef_entry->filter[filt_num].repeat = 1;
2978 mef_entry->filter[filt_num].offset =
2979 wowlan->patterns[i].pkt_offset;
2980 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2981 sizeof(byte_seq));
2982 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2983
2984 if (first_pat)
2985 first_pat = false;
2986 else
2987 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2988
2989 filt_num++;
2990 }
2991
2992 if (wowlan->magic_pkt) {
2993 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST;
2994 mef_entry->filter[filt_num].repeat = 16;
2995 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2996 ETH_ALEN);
2997 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2998 ETH_ALEN;
2999 mef_entry->filter[filt_num].offset = 28;
3000 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3001 if (filt_num)
3002 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3003
3004 filt_num++;
3005 mef_entry->filter[filt_num].repeat = 16;
3006 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
3007 ETH_ALEN);
3008 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
3009 ETH_ALEN;
3010 mef_entry->filter[filt_num].offset = 56;
3011 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
3012 mef_entry->filter[filt_num].filt_action = TYPE_OR;
3013 }
3014 return ret;
3015 }
3016
3017 static int mwifiex_set_mef_filter(struct mwifiex_private *priv,
3018 struct cfg80211_wowlan *wowlan)
3019 {
3020 int ret = 0, num_entries = 1;
3021 struct mwifiex_ds_mef_cfg mef_cfg;
3022 struct mwifiex_mef_entry *mef_entry;
3023
3024 if (wowlan->n_patterns || wowlan->magic_pkt)
3025 num_entries++;
3026
3027 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL);
3028 if (!mef_entry)
3029 return -ENOMEM;
3030
3031 memset(&mef_cfg, 0, sizeof(mef_cfg));
3032 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST |
3033 MWIFIEX_CRITERIA_UNICAST;
3034 mef_cfg.num_entries = num_entries;
3035 mef_cfg.mef_entry = mef_entry;
3036
3037 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]);
3038
3039 if (wowlan->n_patterns || wowlan->magic_pkt)
3040 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg,
3041 &mef_entry[1], wowlan);
3042
3043 if (!mef_cfg.criteria)
3044 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
3045 MWIFIEX_CRITERIA_UNICAST |
3046 MWIFIEX_CRITERIA_MULTICAST;
3047
3048 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG,
3049 HostCmd_ACT_GEN_SET, 0,
3050 &mef_cfg, true);
3051 kfree(mef_entry);
3052 return ret;
3053 }
3054
3055 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
3056 struct cfg80211_wowlan *wowlan)
3057 {
3058 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3059 struct mwifiex_ds_hs_cfg hs_cfg;
3060 int i, ret = 0;
3061 struct mwifiex_private *priv;
3062
3063 for (i = 0; i < adapter->priv_num; i++) {
3064 priv = adapter->priv[i];
3065 mwifiex_abort_cac(priv);
3066 }
3067
3068 mwifiex_cancel_all_pending_cmd(adapter);
3069
3070 if (!wowlan) {
3071 mwifiex_dbg(adapter, ERROR,
3072 "None of the WOWLAN triggers enabled\n");
3073 return 0;
3074 }
3075
3076 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3077
3078 if (!priv->media_connected) {
3079 mwifiex_dbg(adapter, ERROR,
3080 "Can not configure WOWLAN in disconnected state\n");
3081 return 0;
3082 }
3083
3084 ret = mwifiex_set_mef_filter(priv, wowlan);
3085 if (ret) {
3086 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n");
3087 return ret;
3088 }
3089
3090 if (wowlan->disconnect) {
3091 memset(&hs_cfg, 0, sizeof(hs_cfg));
3092 hs_cfg.is_invoke_hostcmd = false;
3093 hs_cfg.conditions = HS_CFG_COND_MAC_EVENT;
3094 hs_cfg.gpio = HS_CFG_GPIO_DEF;
3095 hs_cfg.gap = HS_CFG_GAP_DEF;
3096 ret = mwifiex_set_hs_params(priv, HostCmd_ACT_GEN_SET,
3097 MWIFIEX_SYNC_CMD, &hs_cfg);
3098 if (ret) {
3099 mwifiex_dbg(adapter, ERROR,
3100 "Failed to set HS params\n");
3101 return ret;
3102 }
3103 }
3104
3105 return ret;
3106 }
3107
3108 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
3109 {
3110 return 0;
3111 }
3112
3113 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
3114 bool enabled)
3115 {
3116 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3117
3118 device_set_wakeup_enable(adapter->dev, enabled);
3119 }
3120 #endif
3121
3122 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
3123 {
3124 const u8 ipv4_mc_mac[] = {0x33, 0x33};
3125 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
3126 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
3127
3128 if ((byte_seq[0] & 0x01) &&
3129 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
3130 return PACKET_TYPE_UNICAST;
3131 else if (!memcmp(byte_seq, bc_mac, 4))
3132 return PACKET_TYPE_BROADCAST;
3133 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
3134 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
3135 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
3136 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
3137 return PACKET_TYPE_MULTICAST;
3138
3139 return 0;
3140 }
3141
3142 static int
3143 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
3144 struct cfg80211_coalesce_rules *crule,
3145 struct mwifiex_coalesce_rule *mrule)
3146 {
3147 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
3148 struct filt_field_param *param;
3149 int i;
3150
3151 mrule->max_coalescing_delay = crule->delay;
3152
3153 param = mrule->params;
3154
3155 for (i = 0; i < crule->n_patterns; i++) {
3156 memset(byte_seq, 0, sizeof(byte_seq));
3157 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
3158 byte_seq,
3159 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
3160 mwifiex_dbg(priv->adapter, ERROR,
3161 "Pattern not supported\n");
3162 return -EOPNOTSUPP;
3163 }
3164
3165 if (!crule->patterns[i].pkt_offset) {
3166 u8 pkt_type;
3167
3168 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
3169 if (pkt_type && mrule->pkt_type) {
3170 mwifiex_dbg(priv->adapter, ERROR,
3171 "Multiple packet types not allowed\n");
3172 return -EOPNOTSUPP;
3173 } else if (pkt_type) {
3174 mrule->pkt_type = pkt_type;
3175 continue;
3176 }
3177 }
3178
3179 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
3180 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
3181 else
3182 param->operation = RECV_FILTER_MATCH_TYPE_NE;
3183
3184 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
3185 memcpy(param->operand_byte_stream, byte_seq,
3186 param->operand_len);
3187 param->offset = crule->patterns[i].pkt_offset;
3188 param++;
3189
3190 mrule->num_of_fields++;
3191 }
3192
3193 if (!mrule->pkt_type) {
3194 mwifiex_dbg(priv->adapter, ERROR,
3195 "Packet type can not be determined\n");
3196 return -EOPNOTSUPP;
3197 }
3198
3199 return 0;
3200 }
3201
3202 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
3203 struct cfg80211_coalesce *coalesce)
3204 {
3205 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
3206 int i, ret;
3207 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
3208 struct mwifiex_private *priv =
3209 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
3210
3211 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
3212 if (!coalesce) {
3213 mwifiex_dbg(adapter, WARN,
3214 "Disable coalesce and reset all previous rules\n");
3215 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3216 HostCmd_ACT_GEN_SET, 0,
3217 &coalesce_cfg, true);
3218 }
3219
3220 coalesce_cfg.num_of_rules = coalesce->n_rules;
3221 for (i = 0; i < coalesce->n_rules; i++) {
3222 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
3223 &coalesce_cfg.rule[i]);
3224 if (ret) {
3225 mwifiex_dbg(adapter, ERROR,
3226 "Recheck the patterns provided for rule %d\n",
3227 i + 1);
3228 return ret;
3229 }
3230 }
3231
3232 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG,
3233 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true);
3234 }
3235
3236 /* cfg80211 ops handler for tdls_mgmt.
3237 * Function prepares TDLS action frame packets and forwards them to FW
3238 */
3239 static int
3240 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3241 const u8 *peer, u8 action_code, u8 dialog_token,
3242 u16 status_code, u32 peer_capability,
3243 bool initiator, const u8 *extra_ies,
3244 size_t extra_ies_len)
3245 {
3246 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3247 int ret;
3248
3249 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3250 return -ENOTSUPP;
3251
3252 /* make sure we are in station mode and connected */
3253 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3254 return -ENOTSUPP;
3255
3256 switch (action_code) {
3257 case WLAN_TDLS_SETUP_REQUEST:
3258 mwifiex_dbg(priv->adapter, MSG,
3259 "Send TDLS Setup Request to %pM status_code=%d\n",
3260 peer, status_code);
3261 mwifiex_add_auto_tdls_peer(priv, peer);
3262 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3263 dialog_token, status_code,
3264 extra_ies, extra_ies_len);
3265 break;
3266 case WLAN_TDLS_SETUP_RESPONSE:
3267 mwifiex_add_auto_tdls_peer(priv, peer);
3268 mwifiex_dbg(priv->adapter, MSG,
3269 "Send TDLS Setup Response to %pM status_code=%d\n",
3270 peer, status_code);
3271 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3272 dialog_token, status_code,
3273 extra_ies, extra_ies_len);
3274 break;
3275 case WLAN_TDLS_SETUP_CONFIRM:
3276 mwifiex_dbg(priv->adapter, MSG,
3277 "Send TDLS Confirm to %pM status_code=%d\n", peer,
3278 status_code);
3279 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3280 dialog_token, status_code,
3281 extra_ies, extra_ies_len);
3282 break;
3283 case WLAN_TDLS_TEARDOWN:
3284 mwifiex_dbg(priv->adapter, MSG,
3285 "Send TDLS Tear down to %pM\n", peer);
3286 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3287 dialog_token, status_code,
3288 extra_ies, extra_ies_len);
3289 break;
3290 case WLAN_TDLS_DISCOVERY_REQUEST:
3291 mwifiex_dbg(priv->adapter, MSG,
3292 "Send TDLS Discovery Request to %pM\n", peer);
3293 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code,
3294 dialog_token, status_code,
3295 extra_ies, extra_ies_len);
3296 break;
3297 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3298 mwifiex_dbg(priv->adapter, MSG,
3299 "Send TDLS Discovery Response to %pM\n", peer);
3300 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code,
3301 dialog_token, status_code,
3302 extra_ies, extra_ies_len);
3303 break;
3304 default:
3305 mwifiex_dbg(priv->adapter, ERROR,
3306 "Unknown TDLS mgmt/action frame %pM\n", peer);
3307 ret = -EINVAL;
3308 break;
3309 }
3310
3311 return ret;
3312 }
3313
3314 static int
3315 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3316 const u8 *peer, enum nl80211_tdls_operation action)
3317 {
3318 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3319
3320 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) ||
3321 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP))
3322 return -ENOTSUPP;
3323
3324 /* make sure we are in station mode and connected */
3325 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
3326 return -ENOTSUPP;
3327
3328 mwifiex_dbg(priv->adapter, MSG,
3329 "TDLS peer=%pM, oper=%d\n", peer, action);
3330
3331 switch (action) {
3332 case NL80211_TDLS_ENABLE_LINK:
3333 action = MWIFIEX_TDLS_ENABLE_LINK;
3334 break;
3335 case NL80211_TDLS_DISABLE_LINK:
3336 action = MWIFIEX_TDLS_DISABLE_LINK;
3337 break;
3338 case NL80211_TDLS_TEARDOWN:
3339 /* shouldn't happen!*/
3340 mwifiex_dbg(priv->adapter, ERROR,
3341 "tdls_oper: teardown from driver not supported\n");
3342 return -EINVAL;
3343 case NL80211_TDLS_SETUP:
3344 /* shouldn't happen!*/
3345 mwifiex_dbg(priv->adapter, ERROR,
3346 "tdls_oper: setup from driver not supported\n");
3347 return -EINVAL;
3348 case NL80211_TDLS_DISCOVERY_REQ:
3349 /* shouldn't happen!*/
3350 mwifiex_dbg(priv->adapter, ERROR,
3351 "tdls_oper: discovery from driver not supported\n");
3352 return -EINVAL;
3353 default:
3354 mwifiex_dbg(priv->adapter, ERROR,
3355 "tdls_oper: operation not supported\n");
3356 return -ENOTSUPP;
3357 }
3358
3359 return mwifiex_tdls_oper(priv, peer, action);
3360 }
3361
3362 static int
3363 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3364 const u8 *mac, struct station_parameters *params)
3365 {
3366 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3367
3368 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3369 return -ENOTSUPP;
3370
3371 /* make sure we are in station mode and connected */
3372 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3373 return -ENOTSUPP;
3374
3375 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK);
3376 }
3377
3378 static int
3379 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3380 struct cfg80211_csa_settings *params)
3381 {
3382 struct ieee_types_header *chsw_ie;
3383 struct ieee80211_channel_sw_ie *channel_sw;
3384 int chsw_msec;
3385 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3386
3387 if (priv->adapter->scan_processing) {
3388 mwifiex_dbg(priv->adapter, ERROR,
3389 "radar detection: scan in process...\n");
3390 return -EBUSY;
3391 }
3392
3393 if (priv->wdev.cac_started)
3394 return -EBUSY;
3395
3396 if (cfg80211_chandef_identical(&params->chandef,
3397 &priv->dfs_chandef))
3398 return -EINVAL;
3399
3400 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH,
3401 params->beacon_csa.tail,
3402 params->beacon_csa.tail_len);
3403 if (!chsw_ie) {
3404 mwifiex_dbg(priv->adapter, ERROR,
3405 "Could not parse channel switch announcement IE\n");
3406 return -EINVAL;
3407 }
3408
3409 channel_sw = (void *)(chsw_ie + 1);
3410 if (channel_sw->mode) {
3411 if (netif_carrier_ok(priv->netdev))
3412 netif_carrier_off(priv->netdev);
3413 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
3414 }
3415
3416 if (mwifiex_del_mgmt_ies(priv))
3417 mwifiex_dbg(priv->adapter, ERROR,
3418 "Failed to delete mgmt IEs!\n");
3419
3420 if (mwifiex_set_mgmt_ies(priv, &params->beacon_csa)) {
3421 mwifiex_dbg(priv->adapter, ERROR,
3422 "%s: setting mgmt ies failed\n", __func__);
3423 return -EFAULT;
3424 }
3425
3426 memcpy(&priv->dfs_chandef, &params->chandef, sizeof(priv->dfs_chandef));
3427 memcpy(&priv->beacon_after, &params->beacon_after,
3428 sizeof(priv->beacon_after));
3429
3430 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100);
3431 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work,
3432 msecs_to_jiffies(chsw_msec));
3433 return 0;
3434 }
3435
3436 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy,
3437 struct wireless_dev *wdev,
3438 struct cfg80211_chan_def *chandef)
3439 {
3440 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
3441 struct mwifiex_bssdescriptor *curr_bss;
3442 struct ieee80211_channel *chan;
3443 u8 second_chan_offset;
3444 enum nl80211_channel_type chan_type;
3445 enum ieee80211_band band;
3446 int freq;
3447 int ret = -ENODATA;
3448
3449 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
3450 cfg80211_chandef_valid(&priv->bss_chandef)) {
3451 *chandef = priv->bss_chandef;
3452 ret = 0;
3453 } else if (priv->media_connected) {
3454 curr_bss = &priv->curr_bss_params.bss_descriptor;
3455 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
3456 freq = ieee80211_channel_to_frequency(curr_bss->channel, band);
3457 chan = ieee80211_get_channel(wiphy, freq);
3458
3459 if (curr_bss->bcn_ht_oper) {
3460 second_chan_offset = curr_bss->bcn_ht_oper->ht_param &
3461 IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
3462 chan_type = mwifiex_sec_chan_offset_to_chan_type
3463 (second_chan_offset);
3464 cfg80211_chandef_create(chandef, chan, chan_type);
3465 } else {
3466 cfg80211_chandef_create(chandef, chan,
3467 NL80211_CHAN_NO_HT);
3468 }
3469 ret = 0;
3470 }
3471
3472 return ret;
3473 }
3474
3475 static int
3476 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy,
3477 struct net_device *dev,
3478 struct cfg80211_chan_def *chandef,
3479 u32 cac_time_ms)
3480 {
3481 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3482 struct mwifiex_radar_params radar_params;
3483
3484 if (priv->adapter->scan_processing) {
3485 mwifiex_dbg(priv->adapter, ERROR,
3486 "radar detection: scan already in process...\n");
3487 return -EBUSY;
3488 }
3489
3490 if (!mwifiex_is_11h_active(priv)) {
3491 mwifiex_dbg(priv->adapter, INFO,
3492 "Enable 11h extensions in FW\n");
3493 if (mwifiex_11h_activate(priv, true)) {
3494 mwifiex_dbg(priv->adapter, ERROR,
3495 "Failed to activate 11h extensions!!");
3496 return -1;
3497 }
3498 priv->state_11h.is_11h_active = true;
3499 }
3500
3501 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params));
3502 radar_params.chandef = chandef;
3503 radar_params.cac_time_ms = cac_time_ms;
3504
3505 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef));
3506
3507 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST,
3508 HostCmd_ACT_GEN_SET, 0, &radar_params, true))
3509 return -1;
3510
3511 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work,
3512 msecs_to_jiffies(cac_time_ms));
3513 return 0;
3514 }
3515
3516 static int
3517 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev,
3518 const u8 *mac,
3519 struct station_parameters *params)
3520 {
3521 int ret;
3522 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
3523
3524 /* we support change_station handler only for TDLS peers*/
3525 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)))
3526 return -ENOTSUPP;
3527
3528 /* make sure we are in station mode and connected */
3529 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected)
3530 return -ENOTSUPP;
3531
3532 priv->sta_params = params;
3533
3534 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK);
3535 priv->sta_params = NULL;
3536
3537 return ret;
3538 }
3539
3540 /* station cfg80211 operations */
3541 static struct cfg80211_ops mwifiex_cfg80211_ops = {
3542 .add_virtual_intf = mwifiex_add_virtual_intf,
3543 .del_virtual_intf = mwifiex_del_virtual_intf,
3544 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
3545 .scan = mwifiex_cfg80211_scan,
3546 .connect = mwifiex_cfg80211_connect,
3547 .disconnect = mwifiex_cfg80211_disconnect,
3548 .get_station = mwifiex_cfg80211_get_station,
3549 .dump_station = mwifiex_cfg80211_dump_station,
3550 .dump_survey = mwifiex_cfg80211_dump_survey,
3551 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
3552 .join_ibss = mwifiex_cfg80211_join_ibss,
3553 .leave_ibss = mwifiex_cfg80211_leave_ibss,
3554 .add_key = mwifiex_cfg80211_add_key,
3555 .del_key = mwifiex_cfg80211_del_key,
3556 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
3557 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
3558 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
3559 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
3560 .set_default_key = mwifiex_cfg80211_set_default_key,
3561 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
3562 .set_tx_power = mwifiex_cfg80211_set_tx_power,
3563 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
3564 .start_ap = mwifiex_cfg80211_start_ap,
3565 .stop_ap = mwifiex_cfg80211_stop_ap,
3566 .change_beacon = mwifiex_cfg80211_change_beacon,
3567 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
3568 .set_antenna = mwifiex_cfg80211_set_antenna,
3569 .del_station = mwifiex_cfg80211_del_station,
3570 #ifdef CONFIG_PM
3571 .suspend = mwifiex_cfg80211_suspend,
3572 .resume = mwifiex_cfg80211_resume,
3573 .set_wakeup = mwifiex_cfg80211_set_wakeup,
3574 #endif
3575 .set_coalesce = mwifiex_cfg80211_set_coalesce,
3576 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt,
3577 .tdls_oper = mwifiex_cfg80211_tdls_oper,
3578 .add_station = mwifiex_cfg80211_add_station,
3579 .change_station = mwifiex_cfg80211_change_station,
3580 .get_channel = mwifiex_cfg80211_get_channel,
3581 .start_radar_detection = mwifiex_cfg80211_start_radar_detection,
3582 .channel_switch = mwifiex_cfg80211_channel_switch,
3583 };
3584
3585 #ifdef CONFIG_PM
3586 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
3587 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT,
3588 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
3589 .pattern_min_len = 1,
3590 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3591 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3592 };
3593 #endif
3594
3595 static bool mwifiex_is_valid_alpha2(const char *alpha2)
3596 {
3597 if (!alpha2 || strlen(alpha2) != 2)
3598 return false;
3599
3600 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
3601 return true;
3602
3603 return false;
3604 }
3605
3606 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
3607 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
3608 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
3609 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
3610 .pattern_min_len = 1,
3611 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
3612 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
3613 };
3614
3615 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter)
3616 {
3617 u32 n_channels_bg, n_channels_a = 0;
3618
3619 n_channels_bg = mwifiex_band_2ghz.n_channels;
3620
3621 if (adapter->config_bands & BAND_A)
3622 n_channels_a = mwifiex_band_5ghz.n_channels;
3623
3624 adapter->num_in_chan_stats = max_t(u32, n_channels_bg, n_channels_a);
3625 adapter->chan_stats = vmalloc(sizeof(*adapter->chan_stats) *
3626 adapter->num_in_chan_stats);
3627
3628 if (!adapter->chan_stats)
3629 return -ENOMEM;
3630
3631 return 0;
3632 }
3633
3634 /*
3635 * This function registers the device with CFG802.11 subsystem.
3636 *
3637 * The function creates the wireless device/wiphy, populates it with
3638 * default parameters and handler function pointers, and finally
3639 * registers the device.
3640 */
3641
3642 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
3643 {
3644 int ret;
3645 void *wdev_priv;
3646 struct wiphy *wiphy;
3647 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
3648 u8 *country_code;
3649 u32 thr, retry;
3650
3651 /* create a new wiphy for use with cfg80211 */
3652 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
3653 sizeof(struct mwifiex_adapter *));
3654 if (!wiphy) {
3655 mwifiex_dbg(adapter, ERROR,
3656 "%s: creating new wiphy\n", __func__);
3657 return -ENOMEM;
3658 }
3659 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
3660 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
3661 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
3662 wiphy->max_remain_on_channel_duration = 5000;
3663 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3664 BIT(NL80211_IFTYPE_ADHOC) |
3665 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3666 BIT(NL80211_IFTYPE_P2P_GO) |
3667 BIT(NL80211_IFTYPE_AP);
3668
3669 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
3670 if (adapter->config_bands & BAND_A)
3671 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
3672 else
3673 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
3674
3675 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
3676 wiphy->n_iface_combinations = 1;
3677
3678 /* Initialize cipher suits */
3679 wiphy->cipher_suites = mwifiex_cipher_suites;
3680 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
3681
3682 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr);
3683 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
3684 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
3685 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
3686 WIPHY_FLAG_AP_UAPSD |
3687 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
3688 WIPHY_FLAG_HAS_CHANNEL_SWITCH |
3689 WIPHY_FLAG_PS_ON_BY_DEFAULT;
3690
3691 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
3692 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
3693 WIPHY_FLAG_TDLS_EXTERNAL_SETUP;
3694
3695 #ifdef CONFIG_PM
3696 wiphy->wowlan = &mwifiex_wowlan_support;
3697 #endif
3698
3699 wiphy->coalesce = &mwifiex_coalesce_support;
3700
3701 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
3702 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
3703 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
3704
3705 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
3706 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
3707
3708 wiphy->features |= NL80211_FEATURE_HT_IBSS |
3709 NL80211_FEATURE_INACTIVITY_TIMER |
3710 NL80211_FEATURE_NEED_OBSS_SCAN;
3711
3712 if (adapter->fw_api_ver == MWIFIEX_FW_V15)
3713 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS;
3714
3715 /* Reserve space for mwifiex specific private data for BSS */
3716 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
3717
3718 wiphy->reg_notifier = mwifiex_reg_notifier;
3719
3720 /* Set struct mwifiex_adapter pointer in wiphy_priv */
3721 wdev_priv = wiphy_priv(wiphy);
3722 *(unsigned long *)wdev_priv = (unsigned long)adapter;
3723
3724 set_wiphy_dev(wiphy, priv->adapter->dev);
3725
3726 ret = wiphy_register(wiphy);
3727 if (ret < 0) {
3728 mwifiex_dbg(adapter, ERROR,
3729 "%s: wiphy_register failed: %d\n", __func__, ret);
3730 wiphy_free(wiphy);
3731 return ret;
3732 }
3733
3734 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
3735 mwifiex_dbg(adapter, INFO,
3736 "driver hint alpha2: %2.2s\n", reg_alpha2);
3737 regulatory_hint(wiphy, reg_alpha2);
3738 } else {
3739 country_code = mwifiex_11d_code_2_region(adapter->region_code);
3740 if (country_code)
3741 mwifiex_dbg(adapter, WARN,
3742 "ignoring F/W country code %2.2s\n",
3743 country_code);
3744 }
3745
3746 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3747 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true);
3748 wiphy->frag_threshold = thr;
3749 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3750 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true);
3751 wiphy->rts_threshold = thr;
3752 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3753 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true);
3754 wiphy->retry_short = (u8) retry;
3755 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
3756 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true);
3757 wiphy->retry_long = (u8) retry;
3758
3759 adapter->wiphy = wiphy;
3760 return ret;
3761 }
Linux kernel - Deliverables
This page took 0.163224 seconds and 6 git commands to generate.