?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
fix a kmap leak in virtio_console
[linux/fpc-iii.git] / drivers / net / wireless / mwifiex / cfg80211.c
blob8bfc07cd330e744f8fb68065b551181aa5857688
1 /*
2 * Marvell Wireless LAN device driver: CFG80211
3 *
4 * Copyright (C) 2011, 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 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
46 .n_reg_rules = 7,
47 .alpha2 = "99",
48 .reg_rules = {
49 /* Channel 1 - 11 */
50 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
51 /* Channel 12 - 13 */
52 REG_RULE(2467-10, 2472+10, 20, 3, 20,
53 NL80211_RRF_NO_IR),
54 /* Channel 14 */
55 REG_RULE(2484-10, 2484+10, 20, 3, 20,
56 NL80211_RRF_NO_IR |
57 NL80211_RRF_NO_OFDM),
58 /* Channel 36 - 48 */
59 REG_RULE(5180-10, 5240+10, 40, 3, 20,
60 NL80211_RRF_NO_IR),
61 /* Channel 149 - 165 */
62 REG_RULE(5745-10, 5825+10, 40, 3, 20,
63 NL80211_RRF_NO_IR),
64 /* Channel 52 - 64 */
65 REG_RULE(5260-10, 5320+10, 40, 3, 30,
66 NL80211_RRF_NO_IR |
67 NL80211_RRF_DFS),
68 /* Channel 100 - 140 */
69 REG_RULE(5500-10, 5700+10, 40, 3, 30,
70 NL80211_RRF_NO_IR |
71 NL80211_RRF_DFS),
72 }
73 };
74
75 /*
76 * This function maps the nl802.11 channel type into driver channel type.
77 *
78 * The mapping is as follows -
79 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
80 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
81 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
82 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
83 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
84 */
85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
86 {
87 switch (chan_type) {
88 case NL80211_CHAN_NO_HT:
89 case NL80211_CHAN_HT20:
90 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
91 case NL80211_CHAN_HT40PLUS:
92 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
93 case NL80211_CHAN_HT40MINUS:
94 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
95 default:
96 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
97 }
98 }
99
100 /*
101 * This function checks whether WEP is set.
102 */
103 static int
104 mwifiex_is_alg_wep(u32 cipher)
105 {
106 switch (cipher) {
107 case WLAN_CIPHER_SUITE_WEP40:
108 case WLAN_CIPHER_SUITE_WEP104:
109 return 1;
110 default:
111 break;
112 }
113
114 return 0;
115 }
116
117 /*
118 * This function retrieves the private structure from kernel wiphy structure.
119 */
120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
121 {
122 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
123 }
124
125 /*
126 * CFG802.11 operation handler to delete a network key.
127 */
128 static int
129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
130 u8 key_index, bool pairwise, const u8 *mac_addr)
131 {
132 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
133 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
134 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
135
136 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
137 wiphy_err(wiphy, "deleting the crypto keys\n");
138 return -EFAULT;
139 }
140
141 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
142 return 0;
143 }
144
145 /*
146 * This function forms an skb for management frame.
147 */
148 static int
149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
150 {
151 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
152 u16 pkt_len;
153 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
154 struct timeval tv;
155
156 pkt_len = len + ETH_ALEN;
157
158 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
159 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
160 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
161
162 memcpy(skb_push(skb, sizeof(tx_control)),
163 &tx_control, sizeof(tx_control));
164
165 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
166
167 /* Add packet data and address4 */
168 memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
169 sizeof(struct ieee80211_hdr_3addr));
170 memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
171 memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
172 buf + sizeof(struct ieee80211_hdr_3addr),
173 len - sizeof(struct ieee80211_hdr_3addr));
174
175 skb->priority = LOW_PRIO_TID;
176 do_gettimeofday(&tv);
177 skb->tstamp = timeval_to_ktime(tv);
178
179 return 0;
180 }
181
182 /*
183 * CFG802.11 operation handler to transmit a management frame.
184 */
185 static int
186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
187 struct cfg80211_mgmt_tx_params *params, u64 *cookie)
188 {
189 const u8 *buf = params->buf;
190 size_t len = params->len;
191 struct sk_buff *skb;
192 u16 pkt_len;
193 const struct ieee80211_mgmt *mgmt;
194 struct mwifiex_txinfo *tx_info;
195 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
196
197 if (!buf || !len) {
198 wiphy_err(wiphy, "invalid buffer and length\n");
199 return -EFAULT;
200 }
201
202 mgmt = (const struct ieee80211_mgmt *)buf;
203 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
204 ieee80211_is_probe_resp(mgmt->frame_control)) {
205 /* Since we support offload probe resp, we need to skip probe
206 * resp in AP or GO mode */
207 wiphy_dbg(wiphy,
208 "info: skip to send probe resp in AP or GO mode\n");
209 return 0;
210 }
211
212 pkt_len = len + ETH_ALEN;
213 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
214 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
215 pkt_len + sizeof(pkt_len));
216
217 if (!skb) {
218 wiphy_err(wiphy, "allocate skb failed for management frame\n");
219 return -ENOMEM;
220 }
221
222 tx_info = MWIFIEX_SKB_TXCB(skb);
223 tx_info->bss_num = priv->bss_num;
224 tx_info->bss_type = priv->bss_type;
225 tx_info->pkt_len = pkt_len;
226
227 mwifiex_form_mgmt_frame(skb, buf, len);
228 mwifiex_queue_tx_pkt(priv, skb);
229
230 *cookie = prandom_u32() | 1;
231 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
232
233 wiphy_dbg(wiphy, "info: management frame transmitted\n");
234 return 0;
235 }
236
237 /*
238 * CFG802.11 operation handler to register a mgmt frame.
239 */
240 static void
241 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
242 struct wireless_dev *wdev,
243 u16 frame_type, bool reg)
244 {
245 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
246 u32 mask;
247
248 if (reg)
249 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
250 else
251 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
252
253 if (mask != priv->mgmt_frame_mask) {
254 priv->mgmt_frame_mask = mask;
255 mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
256 HostCmd_ACT_GEN_SET, 0,
257 &priv->mgmt_frame_mask);
258 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
259 }
260 }
261
262 /*
263 * CFG802.11 operation handler to remain on channel.
264 */
265 static int
266 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
267 struct wireless_dev *wdev,
268 struct ieee80211_channel *chan,
269 unsigned int duration, u64 *cookie)
270 {
271 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
272 int ret;
273
274 if (!chan || !cookie) {
275 wiphy_err(wiphy, "Invalid parameter for ROC\n");
276 return -EINVAL;
277 }
278
279 if (priv->roc_cfg.cookie) {
280 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
281 priv->roc_cfg.cookie);
282 return -EBUSY;
283 }
284
285 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
286 duration);
287
288 if (!ret) {
289 *cookie = prandom_u32() | 1;
290 priv->roc_cfg.cookie = *cookie;
291 priv->roc_cfg.chan = *chan;
292
293 cfg80211_ready_on_channel(wdev, *cookie, chan,
294 duration, GFP_ATOMIC);
295
296 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
297 }
298
299 return ret;
300 }
301
302 /*
303 * CFG802.11 operation handler to cancel remain on channel.
304 */
305 static int
306 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
307 struct wireless_dev *wdev, u64 cookie)
308 {
309 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
310 int ret;
311
312 if (cookie != priv->roc_cfg.cookie)
313 return -ENOENT;
314
315 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
316 &priv->roc_cfg.chan, 0);
317
318 if (!ret) {
319 cfg80211_remain_on_channel_expired(wdev, cookie,
320 &priv->roc_cfg.chan,
321 GFP_ATOMIC);
322
323 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
324
325 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
326 }
327
328 return ret;
329 }
330
331 /*
332 * CFG802.11 operation handler to set Tx power.
333 */
334 static int
335 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
336 struct wireless_dev *wdev,
337 enum nl80211_tx_power_setting type,
338 int mbm)
339 {
340 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
341 struct mwifiex_private *priv;
342 struct mwifiex_power_cfg power_cfg;
343 int dbm = MBM_TO_DBM(mbm);
344
345 if (type == NL80211_TX_POWER_FIXED) {
346 power_cfg.is_power_auto = 0;
347 power_cfg.power_level = dbm;
348 } else {
349 power_cfg.is_power_auto = 1;
350 }
351
352 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
353
354 return mwifiex_set_tx_power(priv, &power_cfg);
355 }
356
357 /*
358 * CFG802.11 operation handler to set Power Save option.
359 *
360 * The timeout value, if provided, is currently ignored.
361 */
362 static int
363 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
364 struct net_device *dev,
365 bool enabled, int timeout)
366 {
367 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
368 u32 ps_mode;
369
370 if (timeout)
371 wiphy_dbg(wiphy,
372 "info: ignore timeout value for IEEE Power Save\n");
373
374 ps_mode = enabled;
375
376 return mwifiex_drv_set_power(priv, &ps_mode);
377 }
378
379 /*
380 * CFG802.11 operation handler to set the default network key.
381 */
382 static int
383 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
384 u8 key_index, bool unicast,
385 bool multicast)
386 {
387 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
388
389 /* Return if WEP key not configured */
390 if (!priv->sec_info.wep_enabled)
391 return 0;
392
393 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
394 priv->wep_key_curr_index = key_index;
395 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
396 NULL, 0)) {
397 wiphy_err(wiphy, "set default Tx key index\n");
398 return -EFAULT;
399 }
400
401 return 0;
402 }
403
404 /*
405 * CFG802.11 operation handler to add a network key.
406 */
407 static int
408 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
409 u8 key_index, bool pairwise, const u8 *mac_addr,
410 struct key_params *params)
411 {
412 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
413 struct mwifiex_wep_key *wep_key;
414 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
415 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
416
417 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
418 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
419 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
420 if (params->key && params->key_len) {
421 wep_key = &priv->wep_key[key_index];
422 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
423 memcpy(wep_key->key_material, params->key,
424 params->key_len);
425 wep_key->key_index = key_index;
426 wep_key->key_length = params->key_len;
427 priv->sec_info.wep_enabled = 1;
428 }
429 return 0;
430 }
431
432 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
433 key_index, peer_mac, 0)) {
434 wiphy_err(wiphy, "crypto keys added\n");
435 return -EFAULT;
436 }
437
438 return 0;
439 }
440
441 /*
442 * This function sends domain information to the firmware.
443 *
444 * The following information are passed to the firmware -
445 * - Country codes
446 * - Sub bands (first channel, number of channels, maximum Tx power)
447 */
448 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
449 {
450 u8 no_of_triplet = 0;
451 struct ieee80211_country_ie_triplet *t;
452 u8 no_of_parsed_chan = 0;
453 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
454 u8 i, flag = 0;
455 enum ieee80211_band band;
456 struct ieee80211_supported_band *sband;
457 struct ieee80211_channel *ch;
458 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
459 struct mwifiex_private *priv;
460 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
461
462 /* Set country code */
463 domain_info->country_code[0] = adapter->country_code[0];
464 domain_info->country_code[1] = adapter->country_code[1];
465 domain_info->country_code[2] = ' ';
466
467 band = mwifiex_band_to_radio_type(adapter->config_bands);
468 if (!wiphy->bands[band]) {
469 wiphy_err(wiphy, "11D: setting domain info in FW\n");
470 return -1;
471 }
472
473 sband = wiphy->bands[band];
474
475 for (i = 0; i < sband->n_channels ; i++) {
476 ch = &sband->channels[i];
477 if (ch->flags & IEEE80211_CHAN_DISABLED)
478 continue;
479
480 if (!flag) {
481 flag = 1;
482 first_chan = (u32) ch->hw_value;
483 next_chan = first_chan;
484 max_pwr = ch->max_power;
485 no_of_parsed_chan = 1;
486 continue;
487 }
488
489 if (ch->hw_value == next_chan + 1 &&
490 ch->max_power == max_pwr) {
491 next_chan++;
492 no_of_parsed_chan++;
493 } else {
494 t = &domain_info->triplet[no_of_triplet];
495 t->chans.first_channel = first_chan;
496 t->chans.num_channels = no_of_parsed_chan;
497 t->chans.max_power = max_pwr;
498 no_of_triplet++;
499 first_chan = (u32) ch->hw_value;
500 next_chan = first_chan;
501 max_pwr = ch->max_power;
502 no_of_parsed_chan = 1;
503 }
504 }
505
506 if (flag) {
507 t = &domain_info->triplet[no_of_triplet];
508 t->chans.first_channel = first_chan;
509 t->chans.num_channels = no_of_parsed_chan;
510 t->chans.max_power = max_pwr;
511 no_of_triplet++;
512 }
513
514 domain_info->no_of_triplet = no_of_triplet;
515
516 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
517
518 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
519 HostCmd_ACT_GEN_SET, 0, NULL)) {
520 wiphy_err(wiphy, "11D: setting domain info in FW\n");
521 return -1;
522 }
523
524 return 0;
525 }
526
527 /*
528 * CFG802.11 regulatory domain callback function.
529 *
530 * This function is called when the regulatory domain is changed due to the
531 * following reasons -
532 * - Set by driver
533 * - Set by system core
534 * - Set by user
535 * - Set bt Country IE
536 */
537 static void mwifiex_reg_notifier(struct wiphy *wiphy,
538 struct regulatory_request *request)
539 {
540 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
541 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
542 MWIFIEX_BSS_ROLE_ANY);
543
544 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
545 request->alpha2[0], request->alpha2[1]);
546
547 switch (request->initiator) {
548 case NL80211_REGDOM_SET_BY_DRIVER:
549 case NL80211_REGDOM_SET_BY_CORE:
550 case NL80211_REGDOM_SET_BY_USER:
551 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
552 break;
553 default:
554 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
555 request->initiator);
556 return;
557 }
558
559 /* Don't send world or same regdom info to firmware */
560 if (strncmp(request->alpha2, "00", 2) &&
561 strncmp(request->alpha2, adapter->country_code,
562 sizeof(request->alpha2))) {
563 memcpy(adapter->country_code, request->alpha2,
564 sizeof(request->alpha2));
565 mwifiex_send_domain_info_cmd_fw(wiphy);
566 mwifiex_dnld_txpwr_table(priv);
567 }
568 }
569
570 /*
571 * This function sets the fragmentation threshold.
572 *
573 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
574 * and MWIFIEX_FRAG_MAX_VALUE.
575 */
576 static int
577 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
578 {
579 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
580 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
581 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
582
583 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
584 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
585 &frag_thr);
586 }
587
588 /*
589 * This function sets the RTS threshold.
590
591 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
592 * and MWIFIEX_RTS_MAX_VALUE.
593 */
594 static int
595 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
596 {
597 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
598 rts_thr = MWIFIEX_RTS_MAX_VALUE;
599
600 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
601 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
602 &rts_thr);
603 }
604
605 /*
606 * CFG802.11 operation handler to set wiphy parameters.
607 *
608 * This function can be used to set the RTS threshold and the
609 * Fragmentation threshold of the driver.
610 */
611 static int
612 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
613 {
614 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
615 struct mwifiex_private *priv;
616 struct mwifiex_uap_bss_param *bss_cfg;
617 int ret, bss_started, i;
618
619 for (i = 0; i < adapter->priv_num; i++) {
620 priv = adapter->priv[i];
621
622 switch (priv->bss_role) {
623 case MWIFIEX_BSS_ROLE_UAP:
624 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
625 GFP_KERNEL);
626 if (!bss_cfg)
627 return -ENOMEM;
628
629 mwifiex_set_sys_config_invalid_data(bss_cfg);
630
631 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
632 bss_cfg->rts_threshold = wiphy->rts_threshold;
633 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
634 bss_cfg->frag_threshold = wiphy->frag_threshold;
635 if (changed & WIPHY_PARAM_RETRY_LONG)
636 bss_cfg->retry_limit = wiphy->retry_long;
637
638 bss_started = priv->bss_started;
639
640 ret = mwifiex_send_cmd_sync(priv,
641 HostCmd_CMD_UAP_BSS_STOP,
642 HostCmd_ACT_GEN_SET, 0,
643 NULL);
644 if (ret) {
645 wiphy_err(wiphy, "Failed to stop the BSS\n");
646 kfree(bss_cfg);
647 return ret;
648 }
649
650 ret = mwifiex_send_cmd_async(priv,
651 HostCmd_CMD_UAP_SYS_CONFIG,
652 HostCmd_ACT_GEN_SET,
653 UAP_BSS_PARAMS_I, bss_cfg);
654
655 kfree(bss_cfg);
656
657 if (ret) {
658 wiphy_err(wiphy, "Failed to set bss config\n");
659 return ret;
660 }
661
662 if (!bss_started)
663 break;
664
665 ret = mwifiex_send_cmd_async(priv,
666 HostCmd_CMD_UAP_BSS_START,
667 HostCmd_ACT_GEN_SET, 0,
668 NULL);
669 if (ret) {
670 wiphy_err(wiphy, "Failed to start BSS\n");
671 return ret;
672 }
673
674 break;
675 case MWIFIEX_BSS_ROLE_STA:
676 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
677 ret = mwifiex_set_rts(priv,
678 wiphy->rts_threshold);
679 if (ret)
680 return ret;
681 }
682 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
683 ret = mwifiex_set_frag(priv,
684 wiphy->frag_threshold);
685 if (ret)
686 return ret;
687 }
688 break;
689 }
690 }
691
692 return 0;
693 }
694
695 static int
696 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
697 {
698 u16 mode = P2P_MODE_DISABLE;
699
700 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
701 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
702
703 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
704 HostCmd_ACT_GEN_SET, 0, &mode))
705 return -1;
706
707 return 0;
708 }
709
710 /*
711 * This function initializes the functionalities for P2P client.
712 * The P2P client initialization sequence is:
713 * disable -> device -> client
714 */
715 static int
716 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
717 {
718 u16 mode;
719
720 if (mwifiex_cfg80211_deinit_p2p(priv))
721 return -1;
722
723 mode = P2P_MODE_DEVICE;
724 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
725 HostCmd_ACT_GEN_SET, 0, &mode))
726 return -1;
727
728 mode = P2P_MODE_CLIENT;
729 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
730 HostCmd_ACT_GEN_SET, 0, &mode))
731 return -1;
732
733 return 0;
734 }
735
736 /*
737 * This function initializes the functionalities for P2P GO.
738 * The P2P GO initialization sequence is:
739 * disable -> device -> GO
740 */
741 static int
742 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
743 {
744 u16 mode;
745
746 if (mwifiex_cfg80211_deinit_p2p(priv))
747 return -1;
748
749 mode = P2P_MODE_DEVICE;
750 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
751 HostCmd_ACT_GEN_SET, 0, &mode))
752 return -1;
753
754 mode = P2P_MODE_GO;
755 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
756 HostCmd_ACT_GEN_SET, 0, &mode))
757 return -1;
758
759 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
760 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
761
762 return 0;
763 }
764
765 /*
766 * CFG802.11 operation handler to change interface type.
767 */
768 static int
769 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
770 struct net_device *dev,
771 enum nl80211_iftype type, u32 *flags,
772 struct vif_params *params)
773 {
774 int ret;
775 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
776
777 switch (dev->ieee80211_ptr->iftype) {
778 case NL80211_IFTYPE_ADHOC:
779 switch (type) {
780 case NL80211_IFTYPE_STATION:
781 break;
782 case NL80211_IFTYPE_UNSPECIFIED:
783 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
784 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
785 return 0;
786 case NL80211_IFTYPE_AP:
787 default:
788 wiphy_err(wiphy, "%s: changing to %d not supported\n",
789 dev->name, type);
790 return -EOPNOTSUPP;
791 }
792 break;
793 case NL80211_IFTYPE_STATION:
794 switch (type) {
795 case NL80211_IFTYPE_ADHOC:
796 break;
797 case NL80211_IFTYPE_P2P_CLIENT:
798 if (mwifiex_cfg80211_init_p2p_client(priv))
799 return -EFAULT;
800 dev->ieee80211_ptr->iftype = type;
801 return 0;
802 case NL80211_IFTYPE_P2P_GO:
803 if (mwifiex_cfg80211_init_p2p_go(priv))
804 return -EFAULT;
805 dev->ieee80211_ptr->iftype = type;
806 return 0;
807 case NL80211_IFTYPE_UNSPECIFIED:
808 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
809 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
810 return 0;
811 case NL80211_IFTYPE_AP:
812 default:
813 wiphy_err(wiphy, "%s: changing to %d not supported\n",
814 dev->name, type);
815 return -EOPNOTSUPP;
816 }
817 break;
818 case NL80211_IFTYPE_AP:
819 switch (type) {
820 case NL80211_IFTYPE_UNSPECIFIED:
821 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
822 case NL80211_IFTYPE_AP: /* This shouldn't happen */
823 return 0;
824 case NL80211_IFTYPE_ADHOC:
825 case NL80211_IFTYPE_STATION:
826 default:
827 wiphy_err(wiphy, "%s: changing to %d not supported\n",
828 dev->name, type);
829 return -EOPNOTSUPP;
830 }
831 break;
832 case NL80211_IFTYPE_P2P_CLIENT:
833 case NL80211_IFTYPE_P2P_GO:
834 switch (type) {
835 case NL80211_IFTYPE_STATION:
836 if (mwifiex_cfg80211_deinit_p2p(priv))
837 return -EFAULT;
838 dev->ieee80211_ptr->iftype = type;
839 return 0;
840 default:
841 return -EOPNOTSUPP;
842 }
843 break;
844 default:
845 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
846 dev->name, dev->ieee80211_ptr->iftype);
847 return -EOPNOTSUPP;
848 }
849
850 dev->ieee80211_ptr->iftype = type;
851 priv->bss_mode = type;
852 mwifiex_deauthenticate(priv, NULL);
853
854 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
855
856 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
857 HostCmd_ACT_GEN_SET, 0, NULL);
858
859 return ret;
860 }
861
862 static void
863 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
864 struct rate_info *rate)
865 {
866 struct mwifiex_adapter *adapter = priv->adapter;
867
868 if (adapter->is_hw_11ac_capable) {
869 /* bit[1-0]: 00=LG 01=HT 10=VHT */
870 if (tx_htinfo & BIT(0)) {
871 /* HT */
872 rate->mcs = priv->tx_rate;
873 rate->flags |= RATE_INFO_FLAGS_MCS;
874 }
875 if (tx_htinfo & BIT(1)) {
876 /* VHT */
877 rate->mcs = priv->tx_rate & 0x0F;
878 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
879 }
880
881 if (tx_htinfo & (BIT(1) | BIT(0))) {
882 /* HT or VHT */
883 switch (tx_htinfo & (BIT(3) | BIT(2))) {
884 case 0:
885 /* This will be 20MHz */
886 break;
887 case (BIT(2)):
888 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
889 break;
890 case (BIT(3)):
891 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
892 break;
893 case (BIT(3) | BIT(2)):
894 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
895 break;
896 }
897
898 if (tx_htinfo & BIT(4))
899 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
900
901 if ((priv->tx_rate >> 4) == 1)
902 rate->nss = 2;
903 else
904 rate->nss = 1;
905 }
906 } else {
907 /*
908 * Bit 0 in tx_htinfo indicates that current Tx rate
909 * is 11n rate. Valid MCS index values for us are 0 to 15.
910 */
911 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
912 rate->mcs = priv->tx_rate;
913 rate->flags |= RATE_INFO_FLAGS_MCS;
914 if (tx_htinfo & BIT(1))
915 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
916 if (tx_htinfo & BIT(2))
917 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
918 }
919 }
920 }
921
922 /*
923 * This function dumps the station information on a buffer.
924 *
925 * The following information are shown -
926 * - Total bytes transmitted
927 * - Total bytes received
928 * - Total packets transmitted
929 * - Total packets received
930 * - Signal quality level
931 * - Transmission rate
932 */
933 static int
934 mwifiex_dump_station_info(struct mwifiex_private *priv,
935 struct station_info *sinfo)
936 {
937 u32 rate;
938
939 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
940 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
941 STATION_INFO_TX_BITRATE |
942 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
943
944 /* Get signal information from the firmware */
945 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
946 HostCmd_ACT_GEN_GET, 0, NULL)) {
947 dev_err(priv->adapter->dev, "failed to get signal information\n");
948 return -EFAULT;
949 }
950
951 if (mwifiex_drv_get_data_rate(priv, &rate)) {
952 dev_err(priv->adapter->dev, "getting data rate\n");
953 return -EFAULT;
954 }
955
956 /* Get DTIM period information from firmware */
957 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
958 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
959 &priv->dtim_period);
960
961 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
962
963 sinfo->signal_avg = priv->bcn_rssi_avg;
964 sinfo->rx_bytes = priv->stats.rx_bytes;
965 sinfo->tx_bytes = priv->stats.tx_bytes;
966 sinfo->rx_packets = priv->stats.rx_packets;
967 sinfo->tx_packets = priv->stats.tx_packets;
968 sinfo->signal = priv->bcn_rssi_avg;
969 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
970 sinfo->txrate.legacy = rate * 5;
971
972 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
973 sinfo->filled |= STATION_INFO_BSS_PARAM;
974 sinfo->bss_param.flags = 0;
975 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
976 WLAN_CAPABILITY_SHORT_PREAMBLE)
977 sinfo->bss_param.flags |=
978 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
979 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
980 WLAN_CAPABILITY_SHORT_SLOT_TIME)
981 sinfo->bss_param.flags |=
982 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
983 sinfo->bss_param.dtim_period = priv->dtim_period;
984 sinfo->bss_param.beacon_interval =
985 priv->curr_bss_params.bss_descriptor.beacon_period;
986 }
987
988 return 0;
989 }
990
991 /*
992 * CFG802.11 operation handler to get station information.
993 *
994 * This function only works in connected mode, and dumps the
995 * requested station information, if available.
996 */
997 static int
998 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
999 u8 *mac, struct station_info *sinfo)
1000 {
1001 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1002
1003 if (!priv->media_connected)
1004 return -ENOENT;
1005 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1006 return -ENOENT;
1007
1008 return mwifiex_dump_station_info(priv, sinfo);
1009 }
1010
1011 /*
1012 * CFG802.11 operation handler to dump station information.
1013 */
1014 static int
1015 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1016 int idx, u8 *mac, struct station_info *sinfo)
1017 {
1018 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1019
1020 if (!priv->media_connected || idx)
1021 return -ENOENT;
1022
1023 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1024
1025 return mwifiex_dump_station_info(priv, sinfo);
1026 }
1027
1028 /* Supported rates to be advertised to the cfg80211 */
1029 static struct ieee80211_rate mwifiex_rates[] = {
1030 {.bitrate = 10, .hw_value = 2, },
1031 {.bitrate = 20, .hw_value = 4, },
1032 {.bitrate = 55, .hw_value = 11, },
1033 {.bitrate = 110, .hw_value = 22, },
1034 {.bitrate = 60, .hw_value = 12, },
1035 {.bitrate = 90, .hw_value = 18, },
1036 {.bitrate = 120, .hw_value = 24, },
1037 {.bitrate = 180, .hw_value = 36, },
1038 {.bitrate = 240, .hw_value = 48, },
1039 {.bitrate = 360, .hw_value = 72, },
1040 {.bitrate = 480, .hw_value = 96, },
1041 {.bitrate = 540, .hw_value = 108, },
1042 };
1043
1044 /* Channel definitions to be advertised to cfg80211 */
1045 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1046 {.center_freq = 2412, .hw_value = 1, },
1047 {.center_freq = 2417, .hw_value = 2, },
1048 {.center_freq = 2422, .hw_value = 3, },
1049 {.center_freq = 2427, .hw_value = 4, },
1050 {.center_freq = 2432, .hw_value = 5, },
1051 {.center_freq = 2437, .hw_value = 6, },
1052 {.center_freq = 2442, .hw_value = 7, },
1053 {.center_freq = 2447, .hw_value = 8, },
1054 {.center_freq = 2452, .hw_value = 9, },
1055 {.center_freq = 2457, .hw_value = 10, },
1056 {.center_freq = 2462, .hw_value = 11, },
1057 {.center_freq = 2467, .hw_value = 12, },
1058 {.center_freq = 2472, .hw_value = 13, },
1059 {.center_freq = 2484, .hw_value = 14, },
1060 };
1061
1062 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1063 .channels = mwifiex_channels_2ghz,
1064 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1065 .bitrates = mwifiex_rates,
1066 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1067 };
1068
1069 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1070 {.center_freq = 5040, .hw_value = 8, },
1071 {.center_freq = 5060, .hw_value = 12, },
1072 {.center_freq = 5080, .hw_value = 16, },
1073 {.center_freq = 5170, .hw_value = 34, },
1074 {.center_freq = 5190, .hw_value = 38, },
1075 {.center_freq = 5210, .hw_value = 42, },
1076 {.center_freq = 5230, .hw_value = 46, },
1077 {.center_freq = 5180, .hw_value = 36, },
1078 {.center_freq = 5200, .hw_value = 40, },
1079 {.center_freq = 5220, .hw_value = 44, },
1080 {.center_freq = 5240, .hw_value = 48, },
1081 {.center_freq = 5260, .hw_value = 52, },
1082 {.center_freq = 5280, .hw_value = 56, },
1083 {.center_freq = 5300, .hw_value = 60, },
1084 {.center_freq = 5320, .hw_value = 64, },
1085 {.center_freq = 5500, .hw_value = 100, },
1086 {.center_freq = 5520, .hw_value = 104, },
1087 {.center_freq = 5540, .hw_value = 108, },
1088 {.center_freq = 5560, .hw_value = 112, },
1089 {.center_freq = 5580, .hw_value = 116, },
1090 {.center_freq = 5600, .hw_value = 120, },
1091 {.center_freq = 5620, .hw_value = 124, },
1092 {.center_freq = 5640, .hw_value = 128, },
1093 {.center_freq = 5660, .hw_value = 132, },
1094 {.center_freq = 5680, .hw_value = 136, },
1095 {.center_freq = 5700, .hw_value = 140, },
1096 {.center_freq = 5745, .hw_value = 149, },
1097 {.center_freq = 5765, .hw_value = 153, },
1098 {.center_freq = 5785, .hw_value = 157, },
1099 {.center_freq = 5805, .hw_value = 161, },
1100 {.center_freq = 5825, .hw_value = 165, },
1101 };
1102
1103 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1104 .channels = mwifiex_channels_5ghz,
1105 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1106 .bitrates = mwifiex_rates + 4,
1107 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1108 };
1109
1110
1111 /* Supported crypto cipher suits to be advertised to cfg80211 */
1112 static const u32 mwifiex_cipher_suites[] = {
1113 WLAN_CIPHER_SUITE_WEP40,
1114 WLAN_CIPHER_SUITE_WEP104,
1115 WLAN_CIPHER_SUITE_TKIP,
1116 WLAN_CIPHER_SUITE_CCMP,
1117 WLAN_CIPHER_SUITE_AES_CMAC,
1118 };
1119
1120 /* Supported mgmt frame types to be advertised to cfg80211 */
1121 static const struct ieee80211_txrx_stypes
1122 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1123 [NL80211_IFTYPE_STATION] = {
1124 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1125 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1126 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1127 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1128 },
1129 [NL80211_IFTYPE_AP] = {
1130 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1131 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1132 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1133 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1134 },
1135 [NL80211_IFTYPE_P2P_CLIENT] = {
1136 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1137 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1138 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1139 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1140 },
1141 [NL80211_IFTYPE_P2P_GO] = {
1142 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1143 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1144 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1146 },
1147 };
1148
1149 /*
1150 * CFG802.11 operation handler for setting bit rates.
1151 *
1152 * Function configures data rates to firmware using bitrate mask
1153 * provided by cfg80211.
1154 */
1155 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1156 struct net_device *dev,
1157 const u8 *peer,
1158 const struct cfg80211_bitrate_mask *mask)
1159 {
1160 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1161 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1162 enum ieee80211_band band;
1163
1164 if (!priv->media_connected) {
1165 dev_err(priv->adapter->dev,
1166 "Can not set Tx data rate in disconnected state\n");
1167 return -EINVAL;
1168 }
1169
1170 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1171
1172 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1173
1174 /* Fill HR/DSSS rates. */
1175 if (band == IEEE80211_BAND_2GHZ)
1176 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1177
1178 /* Fill OFDM rates */
1179 if (band == IEEE80211_BAND_2GHZ)
1180 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1181 else
1182 bitmap_rates[1] = mask->control[band].legacy;
1183
1184 /* Fill HT MCS rates */
1185 bitmap_rates[2] = mask->control[band].ht_mcs[0];
1186 if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1187 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1188
1189 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1190 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1191 }
1192
1193 /*
1194 * CFG802.11 operation handler for connection quality monitoring.
1195 *
1196 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1197 * events to FW.
1198 */
1199 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1200 struct net_device *dev,
1201 s32 rssi_thold, u32 rssi_hyst)
1202 {
1203 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1204 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1205
1206 priv->cqm_rssi_thold = rssi_thold;
1207 priv->cqm_rssi_hyst = rssi_hyst;
1208
1209 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1210 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1211
1212 /* Subscribe/unsubscribe low and high rssi events */
1213 if (rssi_thold && rssi_hyst) {
1214 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1215 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1216 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1217 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1218 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1219 return mwifiex_send_cmd_sync(priv,
1220 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1221 0, 0, &subsc_evt);
1222 } else {
1223 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1224 return mwifiex_send_cmd_sync(priv,
1225 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1226 0, 0, &subsc_evt);
1227 }
1228
1229 return 0;
1230 }
1231
1232 /* cfg80211 operation handler for change_beacon.
1233 * Function retrieves and sets modified management IEs to FW.
1234 */
1235 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1236 struct net_device *dev,
1237 struct cfg80211_beacon_data *data)
1238 {
1239 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1240
1241 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1242 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1243 return -EINVAL;
1244 }
1245
1246 if (!priv->bss_started) {
1247 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1248 return -EINVAL;
1249 }
1250
1251 if (mwifiex_set_mgmt_ies(priv, data)) {
1252 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1253 return -EFAULT;
1254 }
1255
1256 return 0;
1257 }
1258
1259 /* cfg80211 operation handler for del_station.
1260 * Function deauthenticates station which value is provided in mac parameter.
1261 * If mac is NULL/broadcast, all stations in associated station list are
1262 * deauthenticated. If bss is not started or there are no stations in
1263 * associated stations list, no action is taken.
1264 */
1265 static int
1266 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1267 u8 *mac)
1268 {
1269 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1270 struct mwifiex_sta_node *sta_node;
1271 unsigned long flags;
1272
1273 if (list_empty(&priv->sta_list) || !priv->bss_started)
1274 return 0;
1275
1276 if (!mac || is_broadcast_ether_addr(mac)) {
1277 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1278 list_for_each_entry(sta_node, &priv->sta_list, list) {
1279 if (mwifiex_send_cmd_sync(priv,
1280 HostCmd_CMD_UAP_STA_DEAUTH,
1281 HostCmd_ACT_GEN_SET, 0,
1282 sta_node->mac_addr))
1283 return -1;
1284 mwifiex_uap_del_sta_data(priv, sta_node);
1285 }
1286 } else {
1287 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1288 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1289 sta_node = mwifiex_get_sta_entry(priv, mac);
1290 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1291 if (sta_node) {
1292 if (mwifiex_send_cmd_sync(priv,
1293 HostCmd_CMD_UAP_STA_DEAUTH,
1294 HostCmd_ACT_GEN_SET, 0,
1295 sta_node->mac_addr))
1296 return -1;
1297 mwifiex_uap_del_sta_data(priv, sta_node);
1298 }
1299 }
1300
1301 return 0;
1302 }
1303
1304 static int
1305 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1306 {
1307 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1308 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1309 MWIFIEX_BSS_ROLE_ANY);
1310 struct mwifiex_ds_ant_cfg ant_cfg;
1311
1312 if (!tx_ant || !rx_ant)
1313 return -EOPNOTSUPP;
1314
1315 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1316 /* Not a MIMO chip. User should provide specific antenna number
1317 * for Tx/Rx path or enable all antennas for diversity
1318 */
1319 if (tx_ant != rx_ant)
1320 return -EOPNOTSUPP;
1321
1322 if ((tx_ant & (tx_ant - 1)) &&
1323 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1324 return -EOPNOTSUPP;
1325
1326 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1327 (priv->adapter->number_of_antenna > 1)) {
1328 tx_ant = RF_ANTENNA_AUTO;
1329 rx_ant = RF_ANTENNA_AUTO;
1330 }
1331 }
1332
1333 ant_cfg.tx_ant = tx_ant;
1334 ant_cfg.rx_ant = rx_ant;
1335
1336 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1337 HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1338 }
1339
1340 /* cfg80211 operation handler for stop ap.
1341 * Function stops BSS running at uAP interface.
1342 */
1343 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1344 {
1345 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1346
1347 if (mwifiex_del_mgmt_ies(priv))
1348 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1349
1350 priv->ap_11n_enabled = 0;
1351
1352 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1353 HostCmd_ACT_GEN_SET, 0, NULL)) {
1354 wiphy_err(wiphy, "Failed to stop the BSS\n");
1355 return -1;
1356 }
1357
1358 return 0;
1359 }
1360
1361 /* cfg80211 operation handler for start_ap.
1362 * Function sets beacon period, DTIM period, SSID and security into
1363 * AP config structure.
1364 * AP is configured with these settings and BSS is started.
1365 */
1366 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1367 struct net_device *dev,
1368 struct cfg80211_ap_settings *params)
1369 {
1370 struct mwifiex_uap_bss_param *bss_cfg;
1371 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1372 u8 config_bands = 0;
1373
1374 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1375 return -1;
1376 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1377 return -1;
1378
1379 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1380 if (!bss_cfg)
1381 return -ENOMEM;
1382
1383 mwifiex_set_sys_config_invalid_data(bss_cfg);
1384
1385 if (params->beacon_interval)
1386 bss_cfg->beacon_period = params->beacon_interval;
1387 if (params->dtim_period)
1388 bss_cfg->dtim_period = params->dtim_period;
1389
1390 if (params->ssid && params->ssid_len) {
1391 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1392 bss_cfg->ssid.ssid_len = params->ssid_len;
1393 }
1394
1395 switch (params->hidden_ssid) {
1396 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1397 bss_cfg->bcast_ssid_ctl = 1;
1398 break;
1399 case NL80211_HIDDEN_SSID_ZERO_LEN:
1400 bss_cfg->bcast_ssid_ctl = 0;
1401 break;
1402 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1403 /* firmware doesn't support this type of hidden SSID */
1404 default:
1405 kfree(bss_cfg);
1406 return -EINVAL;
1407 }
1408
1409 bss_cfg->channel = ieee80211_frequency_to_channel(
1410 params->chandef.chan->center_freq);
1411
1412 /* Set appropriate bands */
1413 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1414 bss_cfg->band_cfg = BAND_CONFIG_BG;
1415 config_bands = BAND_B | BAND_G;
1416
1417 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1418 config_bands |= BAND_GN;
1419
1420 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1421 config_bands |= BAND_GAC;
1422 } else {
1423 bss_cfg->band_cfg = BAND_CONFIG_A;
1424 config_bands = BAND_A;
1425
1426 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1427 config_bands |= BAND_AN;
1428
1429 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1430 config_bands |= BAND_AAC;
1431 }
1432
1433 if (!((config_bands | priv->adapter->fw_bands) &
1434 ~priv->adapter->fw_bands))
1435 priv->adapter->config_bands = config_bands;
1436
1437 mwifiex_set_uap_rates(bss_cfg, params);
1438 mwifiex_send_domain_info_cmd_fw(wiphy);
1439
1440 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1441 kfree(bss_cfg);
1442 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1443 return -1;
1444 }
1445
1446 mwifiex_set_ht_params(priv, bss_cfg, params);
1447
1448 if (priv->adapter->is_hw_11ac_capable) {
1449 mwifiex_set_vht_params(priv, bss_cfg, params);
1450 mwifiex_set_vht_width(priv, params->chandef.width,
1451 priv->ap_11ac_enabled);
1452 }
1453
1454 if (priv->ap_11ac_enabled)
1455 mwifiex_set_11ac_ba_params(priv);
1456 else
1457 mwifiex_set_ba_params(priv);
1458
1459 mwifiex_set_wmm_params(priv, bss_cfg, params);
1460
1461 if (params->inactivity_timeout > 0) {
1462 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1463 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1464 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1465 }
1466
1467 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1468 HostCmd_ACT_GEN_SET, 0, NULL)) {
1469 wiphy_err(wiphy, "Failed to stop the BSS\n");
1470 kfree(bss_cfg);
1471 return -1;
1472 }
1473
1474 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1475 HostCmd_ACT_GEN_SET,
1476 UAP_BSS_PARAMS_I, bss_cfg)) {
1477 wiphy_err(wiphy, "Failed to set the SSID\n");
1478 kfree(bss_cfg);
1479 return -1;
1480 }
1481
1482 kfree(bss_cfg);
1483
1484 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1485 HostCmd_ACT_GEN_SET, 0, NULL)) {
1486 wiphy_err(wiphy, "Failed to start the BSS\n");
1487 return -1;
1488 }
1489
1490 if (priv->sec_info.wep_enabled)
1491 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1492 else
1493 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1494
1495 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1496 HostCmd_ACT_GEN_SET, 0,
1497 &priv->curr_pkt_filter))
1498 return -1;
1499
1500 return 0;
1501 }
1502
1503 /*
1504 * CFG802.11 operation handler for disconnection request.
1505 *
1506 * This function does not work when there is already a disconnection
1507 * procedure going on.
1508 */
1509 static int
1510 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1511 u16 reason_code)
1512 {
1513 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1514
1515 if (mwifiex_deauthenticate(priv, NULL))
1516 return -EFAULT;
1517
1518 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1519 " reason code %d\n", priv->cfg_bssid, reason_code);
1520
1521 memset(priv->cfg_bssid, 0, ETH_ALEN);
1522 priv->hs2_enabled = false;
1523
1524 return 0;
1525 }
1526
1527 /*
1528 * This function informs the CFG802.11 subsystem of a new IBSS.
1529 *
1530 * The following information are sent to the CFG802.11 subsystem
1531 * to register the new IBSS. If we do not register the new IBSS,
1532 * a kernel panic will result.
1533 * - SSID
1534 * - SSID length
1535 * - BSSID
1536 * - Channel
1537 */
1538 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1539 {
1540 struct ieee80211_channel *chan;
1541 struct mwifiex_bss_info bss_info;
1542 struct cfg80211_bss *bss;
1543 int ie_len;
1544 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1545 enum ieee80211_band band;
1546
1547 if (mwifiex_get_bss_info(priv, &bss_info))
1548 return -1;
1549
1550 ie_buf[0] = WLAN_EID_SSID;
1551 ie_buf[1] = bss_info.ssid.ssid_len;
1552
1553 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1554 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1555 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1556
1557 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1558 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1559 ieee80211_channel_to_frequency(bss_info.bss_chan,
1560 band));
1561
1562 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1563 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1564 0, ie_buf, ie_len, 0, GFP_KERNEL);
1565 cfg80211_put_bss(priv->wdev->wiphy, bss);
1566 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1567
1568 return 0;
1569 }
1570
1571 /*
1572 * This function connects with a BSS.
1573 *
1574 * This function handles both Infra and Ad-Hoc modes. It also performs
1575 * validity checking on the provided parameters, disconnects from the
1576 * current BSS (if any), sets up the association/scan parameters,
1577 * including security settings, and performs specific SSID scan before
1578 * trying to connect.
1579 *
1580 * For Infra mode, the function returns failure if the specified SSID
1581 * is not found in scan table. However, for Ad-Hoc mode, it can create
1582 * the IBSS if it does not exist. On successful completion in either case,
1583 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1584 */
1585 static int
1586 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1587 u8 *bssid, int mode, struct ieee80211_channel *channel,
1588 struct cfg80211_connect_params *sme, bool privacy)
1589 {
1590 struct cfg80211_ssid req_ssid;
1591 int ret, auth_type = 0;
1592 struct cfg80211_bss *bss = NULL;
1593 u8 is_scanning_required = 0;
1594
1595 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1596
1597 req_ssid.ssid_len = ssid_len;
1598 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1599 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1600 return -EINVAL;
1601 }
1602
1603 memcpy(req_ssid.ssid, ssid, ssid_len);
1604 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1605 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1606 return -EINVAL;
1607 }
1608
1609 /* disconnect before try to associate */
1610 mwifiex_deauthenticate(priv, NULL);
1611
1612 /* As this is new association, clear locally stored
1613 * keys and security related flags */
1614 priv->sec_info.wpa_enabled = false;
1615 priv->sec_info.wpa2_enabled = false;
1616 priv->wep_key_curr_index = 0;
1617 priv->sec_info.encryption_mode = 0;
1618 priv->sec_info.is_authtype_auto = 0;
1619 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1620
1621 if (mode == NL80211_IFTYPE_ADHOC) {
1622 /* "privacy" is set only for ad-hoc mode */
1623 if (privacy) {
1624 /*
1625 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1626 * the firmware can find a matching network from the
1627 * scan. The cfg80211 does not give us the encryption
1628 * mode at this stage so just setting it to WEP here.
1629 */
1630 priv->sec_info.encryption_mode =
1631 WLAN_CIPHER_SUITE_WEP104;
1632 priv->sec_info.authentication_mode =
1633 NL80211_AUTHTYPE_OPEN_SYSTEM;
1634 }
1635
1636 goto done;
1637 }
1638
1639 /* Now handle infra mode. "sme" is valid for infra mode only */
1640 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1641 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1642 priv->sec_info.is_authtype_auto = 1;
1643 } else {
1644 auth_type = sme->auth_type;
1645 }
1646
1647 if (sme->crypto.n_ciphers_pairwise) {
1648 priv->sec_info.encryption_mode =
1649 sme->crypto.ciphers_pairwise[0];
1650 priv->sec_info.authentication_mode = auth_type;
1651 }
1652
1653 if (sme->crypto.cipher_group) {
1654 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1655 priv->sec_info.authentication_mode = auth_type;
1656 }
1657 if (sme->ie)
1658 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1659
1660 if (sme->key) {
1661 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1662 dev_dbg(priv->adapter->dev,
1663 "info: setting wep encryption"
1664 " with key len %d\n", sme->key_len);
1665 priv->wep_key_curr_index = sme->key_idx;
1666 ret = mwifiex_set_encode(priv, NULL, sme->key,
1667 sme->key_len, sme->key_idx,
1668 NULL, 0);
1669 }
1670 }
1671 done:
1672 /*
1673 * Scan entries are valid for some time (15 sec). So we can save one
1674 * active scan time if we just try cfg80211_get_bss first. If it fails
1675 * then request scan and cfg80211_get_bss() again for final output.
1676 */
1677 while (1) {
1678 if (is_scanning_required) {
1679 /* Do specific SSID scanning */
1680 if (mwifiex_request_scan(priv, &req_ssid)) {
1681 dev_err(priv->adapter->dev, "scan error\n");
1682 return -EFAULT;
1683 }
1684 }
1685
1686 /* Find the BSS we want using available scan results */
1687 if (mode == NL80211_IFTYPE_ADHOC)
1688 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1689 bssid, ssid, ssid_len,
1690 WLAN_CAPABILITY_IBSS,
1691 WLAN_CAPABILITY_IBSS);
1692 else
1693 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1694 bssid, ssid, ssid_len,
1695 WLAN_CAPABILITY_ESS,
1696 WLAN_CAPABILITY_ESS);
1697
1698 if (!bss) {
1699 if (is_scanning_required) {
1700 dev_warn(priv->adapter->dev,
1701 "assoc: requested bss not found in scan results\n");
1702 break;
1703 }
1704 is_scanning_required = 1;
1705 } else {
1706 dev_dbg(priv->adapter->dev,
1707 "info: trying to associate to '%s' bssid %pM\n",
1708 (char *) req_ssid.ssid, bss->bssid);
1709 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1710 break;
1711 }
1712 }
1713
1714 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1715 if (ret)
1716 return ret;
1717
1718 if (mode == NL80211_IFTYPE_ADHOC) {
1719 /* Inform the BSS information to kernel, otherwise
1720 * kernel will give a panic after successful assoc */
1721 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1722 return -EFAULT;
1723 }
1724
1725 return ret;
1726 }
1727
1728 /*
1729 * CFG802.11 operation handler for association request.
1730 *
1731 * This function does not work when the current mode is set to Ad-Hoc, or
1732 * when there is already an association procedure going on. The given BSS
1733 * information is used to associate.
1734 */
1735 static int
1736 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1737 struct cfg80211_connect_params *sme)
1738 {
1739 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1740 int ret;
1741
1742 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1743 wiphy_err(wiphy,
1744 "%s: reject infra assoc request in non-STA role\n",
1745 dev->name);
1746 return -EINVAL;
1747 }
1748
1749 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1750 (char *) sme->ssid, sme->bssid);
1751
1752 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1753 priv->bss_mode, sme->channel, sme, 0);
1754 if (!ret) {
1755 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1756 NULL, 0, WLAN_STATUS_SUCCESS,
1757 GFP_KERNEL);
1758 dev_dbg(priv->adapter->dev,
1759 "info: associated to bssid %pM successfully\n",
1760 priv->cfg_bssid);
1761 } else {
1762 dev_dbg(priv->adapter->dev,
1763 "info: association to bssid %pM failed\n",
1764 priv->cfg_bssid);
1765 memset(priv->cfg_bssid, 0, ETH_ALEN);
1766
1767 if (ret > 0)
1768 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1769 NULL, 0, NULL, 0, ret,
1770 GFP_KERNEL);
1771 else
1772 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1773 NULL, 0, NULL, 0,
1774 WLAN_STATUS_UNSPECIFIED_FAILURE,
1775 GFP_KERNEL);
1776 }
1777
1778 return 0;
1779 }
1780
1781 /*
1782 * This function sets following parameters for ibss network.
1783 * - channel
1784 * - start band
1785 * - 11n flag
1786 * - secondary channel offset
1787 */
1788 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1789 struct cfg80211_ibss_params *params)
1790 {
1791 struct wiphy *wiphy = priv->wdev->wiphy;
1792 struct mwifiex_adapter *adapter = priv->adapter;
1793 int index = 0, i;
1794 u8 config_bands = 0;
1795
1796 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1797 if (!params->basic_rates) {
1798 config_bands = BAND_B | BAND_G;
1799 } else {
1800 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1801 /*
1802 * Rates below 6 Mbps in the table are CCK
1803 * rates; 802.11b and from 6 they are OFDM;
1804 * 802.11G
1805 */
1806 if (mwifiex_rates[i].bitrate == 60) {
1807 index = 1 << i;
1808 break;
1809 }
1810 }
1811
1812 if (params->basic_rates < index) {
1813 config_bands = BAND_B;
1814 } else {
1815 config_bands = BAND_G;
1816 if (params->basic_rates % index)
1817 config_bands |= BAND_B;
1818 }
1819 }
1820
1821 if (cfg80211_get_chandef_type(&params->chandef) !=
1822 NL80211_CHAN_NO_HT)
1823 config_bands |= BAND_G | BAND_GN;
1824 } else {
1825 if (cfg80211_get_chandef_type(&params->chandef) ==
1826 NL80211_CHAN_NO_HT)
1827 config_bands = BAND_A;
1828 else
1829 config_bands = BAND_AN | BAND_A;
1830 }
1831
1832 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1833 adapter->config_bands = config_bands;
1834 adapter->adhoc_start_band = config_bands;
1835
1836 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1837 adapter->adhoc_11n_enabled = true;
1838 else
1839 adapter->adhoc_11n_enabled = false;
1840 }
1841
1842 adapter->sec_chan_offset =
1843 mwifiex_chan_type_to_sec_chan_offset(
1844 cfg80211_get_chandef_type(&params->chandef));
1845 priv->adhoc_channel = ieee80211_frequency_to_channel(
1846 params->chandef.chan->center_freq);
1847
1848 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1849 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1850
1851 return 0;
1852 }
1853
1854 /*
1855 * CFG802.11 operation handler to join an IBSS.
1856 *
1857 * This function does not work in any mode other than Ad-Hoc, or if
1858 * a join operation is already in progress.
1859 */
1860 static int
1861 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1862 struct cfg80211_ibss_params *params)
1863 {
1864 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1865 int ret = 0;
1866
1867 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1868 wiphy_err(wiphy, "request to join ibss received "
1869 "when station is not in ibss mode\n");
1870 goto done;
1871 }
1872
1873 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1874 (char *) params->ssid, params->bssid);
1875
1876 mwifiex_set_ibss_params(priv, params);
1877
1878 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1879 params->bssid, priv->bss_mode,
1880 params->chandef.chan, NULL,
1881 params->privacy);
1882 done:
1883 if (!ret) {
1884 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1885 dev_dbg(priv->adapter->dev,
1886 "info: joined/created adhoc network with bssid"
1887 " %pM successfully\n", priv->cfg_bssid);
1888 } else {
1889 dev_dbg(priv->adapter->dev,
1890 "info: failed creating/joining adhoc network\n");
1891 }
1892
1893 return ret;
1894 }
1895
1896 /*
1897 * CFG802.11 operation handler to leave an IBSS.
1898 *
1899 * This function does not work if a leave operation is
1900 * already in progress.
1901 */
1902 static int
1903 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1904 {
1905 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1906
1907 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1908 priv->cfg_bssid);
1909 if (mwifiex_deauthenticate(priv, NULL))
1910 return -EFAULT;
1911
1912 memset(priv->cfg_bssid, 0, ETH_ALEN);
1913
1914 return 0;
1915 }
1916
1917 /*
1918 * CFG802.11 operation handler for scan request.
1919 *
1920 * This function issues a scan request to the firmware based upon
1921 * the user specified scan configuration. On successfull completion,
1922 * it also informs the results.
1923 */
1924 static int
1925 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1926 struct cfg80211_scan_request *request)
1927 {
1928 struct net_device *dev = request->wdev->netdev;
1929 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1930 int i, offset, ret;
1931 struct ieee80211_channel *chan;
1932 struct ieee_types_header *ie;
1933 struct mwifiex_user_scan_cfg *user_scan_cfg;
1934
1935 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1936
1937 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1938 atomic_read(&priv->wmm.tx_pkts_queued) >=
1939 MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1940 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1941 return -EBUSY;
1942 }
1943
1944 /* Block scan request if scan operation or scan cleanup when interface
1945 * is disabled is in process
1946 */
1947 if (priv->scan_request || priv->scan_aborting) {
1948 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1949 return -EBUSY;
1950 }
1951
1952 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1953 if (!user_scan_cfg)
1954 return -ENOMEM;
1955
1956 priv->scan_request = request;
1957
1958 user_scan_cfg->num_ssids = request->n_ssids;
1959 user_scan_cfg->ssid_list = request->ssids;
1960
1961 if (request->ie && request->ie_len) {
1962 offset = 0;
1963 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1964 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1965 continue;
1966 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1967 ie = (struct ieee_types_header *)(request->ie + offset);
1968 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1969 offset += sizeof(*ie) + ie->len;
1970
1971 if (offset >= request->ie_len)
1972 break;
1973 }
1974 }
1975
1976 for (i = 0; i < min_t(u32, request->n_channels,
1977 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
1978 chan = request->channels[i];
1979 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1980 user_scan_cfg->chan_list[i].radio_type = chan->band;
1981
1982 if (chan->flags & IEEE80211_CHAN_NO_IR)
1983 user_scan_cfg->chan_list[i].scan_type =
1984 MWIFIEX_SCAN_TYPE_PASSIVE;
1985 else
1986 user_scan_cfg->chan_list[i].scan_type =
1987 MWIFIEX_SCAN_TYPE_ACTIVE;
1988
1989 user_scan_cfg->chan_list[i].scan_time = 0;
1990 }
1991
1992 ret = mwifiex_scan_networks(priv, user_scan_cfg);
1993 kfree(user_scan_cfg);
1994 if (ret) {
1995 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1996 priv->scan_aborting = false;
1997 priv->scan_request = NULL;
1998 return ret;
1999 }
2000
2001 if (request->ie && request->ie_len) {
2002 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2003 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2004 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2005 memset(&priv->vs_ie[i].ie, 0,
2006 MWIFIEX_MAX_VSIE_LEN);
2007 }
2008 }
2009 }
2010 return 0;
2011 }
2012
2013 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2014 struct mwifiex_private *priv)
2015 {
2016 struct mwifiex_adapter *adapter = priv->adapter;
2017
2018 vht_info->vht_supported = true;
2019
2020 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2021 /* Update MCS support for VHT */
2022 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2023 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2024 vht_info->vht_mcs.rx_highest = 0;
2025 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2026 adapter->hw_dot_11ac_mcs_support >> 16);
2027 vht_info->vht_mcs.tx_highest = 0;
2028 }
2029
2030 /*
2031 * This function sets up the CFG802.11 specific HT capability fields
2032 * with default values.
2033 *
2034 * The following default values are set -
2035 * - HT Supported = True
2036 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2037 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2038 * - HT Capabilities supported by firmware
2039 * - MCS information, Rx mask = 0xff
2040 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2041 */
2042 static void
2043 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2044 struct mwifiex_private *priv)
2045 {
2046 int rx_mcs_supp;
2047 struct ieee80211_mcs_info mcs_set;
2048 u8 *mcs = (u8 *)&mcs_set;
2049 struct mwifiex_adapter *adapter = priv->adapter;
2050
2051 ht_info->ht_supported = true;
2052 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2053 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2054
2055 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2056
2057 /* Fill HT capability information */
2058 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2059 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2060 else
2061 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2062
2063 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2064 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2065 else
2066 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2067
2068 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2069 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2070 else
2071 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2072
2073 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
2074 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2075 else
2076 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
2077
2078 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2079 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2080 else
2081 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2082
2083 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2084 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2085 else
2086 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2087
2088 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2089 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2090 else
2091 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2092
2093 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2094 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2095 else
2096 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2097
2098 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2099 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2100
2101 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2102 /* Set MCS for 1x1 */
2103 memset(mcs, 0xff, rx_mcs_supp);
2104 /* Clear all the other values */
2105 memset(&mcs[rx_mcs_supp], 0,
2106 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2107 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2108 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2109 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2110 SETHT_MCS32(mcs_set.rx_mask);
2111
2112 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2113
2114 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2115 }
2116
2117 /*
2118 * create a new virtual interface with the given name
2119 */
2120 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2121 const char *name,
2122 enum nl80211_iftype type,
2123 u32 *flags,
2124 struct vif_params *params)
2125 {
2126 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2127 struct mwifiex_private *priv;
2128 struct net_device *dev;
2129 void *mdev_priv;
2130 struct wireless_dev *wdev;
2131
2132 if (!adapter)
2133 return ERR_PTR(-EFAULT);
2134
2135 switch (type) {
2136 case NL80211_IFTYPE_UNSPECIFIED:
2137 case NL80211_IFTYPE_STATION:
2138 case NL80211_IFTYPE_ADHOC:
2139 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2140 if (priv->bss_mode) {
2141 wiphy_err(wiphy,
2142 "cannot create multiple sta/adhoc ifaces\n");
2143 return ERR_PTR(-EINVAL);
2144 }
2145
2146 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2147 if (!wdev)
2148 return ERR_PTR(-ENOMEM);
2149
2150 wdev->wiphy = wiphy;
2151 priv->wdev = wdev;
2152 wdev->iftype = NL80211_IFTYPE_STATION;
2153
2154 if (type == NL80211_IFTYPE_UNSPECIFIED)
2155 priv->bss_mode = NL80211_IFTYPE_STATION;
2156 else
2157 priv->bss_mode = type;
2158
2159 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2160 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2161 priv->bss_priority = 0;
2162 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2163 priv->bss_num = 0;
2164
2165 break;
2166 case NL80211_IFTYPE_AP:
2167 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2168
2169 if (priv->bss_mode) {
2170 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2171 return ERR_PTR(-EINVAL);
2172 }
2173
2174 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2175 if (!wdev)
2176 return ERR_PTR(-ENOMEM);
2177
2178 priv->wdev = wdev;
2179 wdev->wiphy = wiphy;
2180 wdev->iftype = NL80211_IFTYPE_AP;
2181
2182 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2183 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2184 priv->bss_priority = 0;
2185 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2186 priv->bss_started = 0;
2187 priv->bss_num = 0;
2188 priv->bss_mode = type;
2189
2190 break;
2191 case NL80211_IFTYPE_P2P_CLIENT:
2192 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2193
2194 if (priv->bss_mode) {
2195 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2196 return ERR_PTR(-EINVAL);
2197 }
2198
2199 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2200 if (!wdev)
2201 return ERR_PTR(-ENOMEM);
2202
2203 priv->wdev = wdev;
2204 wdev->wiphy = wiphy;
2205
2206 /* At start-up, wpa_supplicant tries to change the interface
2207 * to NL80211_IFTYPE_STATION if it is not managed mode.
2208 */
2209 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2210 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2211
2212 /* Setting bss_type to P2P tells firmware that this interface
2213 * is receiving P2P peers found during find phase and doing
2214 * action frame handshake.
2215 */
2216 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2217
2218 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2219 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2220 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2221 priv->bss_started = 0;
2222 priv->bss_num = 0;
2223
2224 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2225 wdev = ERR_PTR(-EFAULT);
2226 goto done;
2227 }
2228
2229 break;
2230 default:
2231 wiphy_err(wiphy, "type not supported\n");
2232 return ERR_PTR(-EINVAL);
2233 }
2234
2235 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2236 ether_setup, IEEE80211_NUM_ACS, 1);
2237 if (!dev) {
2238 wiphy_err(wiphy, "no memory available for netdevice\n");
2239 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2240 wdev = ERR_PTR(-ENOMEM);
2241 goto done;
2242 }
2243
2244 mwifiex_init_priv_params(priv, dev);
2245 priv->netdev = dev;
2246
2247 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2248 if (adapter->is_hw_11ac_capable)
2249 mwifiex_setup_vht_caps(
2250 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2251
2252 if (adapter->config_bands & BAND_A)
2253 mwifiex_setup_ht_caps(
2254 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2255
2256 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2257 mwifiex_setup_vht_caps(
2258 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2259
2260 dev_net_set(dev, wiphy_net(wiphy));
2261 dev->ieee80211_ptr = priv->wdev;
2262 dev->ieee80211_ptr->iftype = priv->bss_mode;
2263 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2264 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2265
2266 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2267 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2268 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2269 dev->ethtool_ops = &mwifiex_ethtool_ops;
2270
2271 mdev_priv = netdev_priv(dev);
2272 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2273
2274 SET_NETDEV_DEV(dev, adapter->dev);
2275
2276 /* Register network device */
2277 if (register_netdevice(dev)) {
2278 wiphy_err(wiphy, "cannot register virtual network device\n");
2279 free_netdev(dev);
2280 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2281 priv->netdev = NULL;
2282 wdev = ERR_PTR(-EFAULT);
2283 goto done;
2284 }
2285
2286 sema_init(&priv->async_sem, 1);
2287
2288 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2289
2290 #ifdef CONFIG_DEBUG_FS
2291 mwifiex_dev_debugfs_init(priv);
2292 #endif
2293
2294 done:
2295 if (IS_ERR(wdev)) {
2296 kfree(priv->wdev);
2297 priv->wdev = NULL;
2298 }
2299
2300 return wdev;
2301 }
2302 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2303
2304 /*
2305 * del_virtual_intf: remove the virtual interface determined by dev
2306 */
2307 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2308 {
2309 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2310
2311 #ifdef CONFIG_DEBUG_FS
2312 mwifiex_dev_debugfs_remove(priv);
2313 #endif
2314
2315 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2316
2317 if (netif_carrier_ok(priv->netdev))
2318 netif_carrier_off(priv->netdev);
2319
2320 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2321 unregister_netdevice(wdev->netdev);
2322
2323 /* Clear the priv in adapter */
2324 priv->netdev->ieee80211_ptr = NULL;
2325 priv->netdev = NULL;
2326 kfree(wdev);
2327 priv->wdev = NULL;
2328
2329 priv->media_connected = false;
2330
2331 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2332
2333 return 0;
2334 }
2335 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2336
2337 static bool
2338 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2339 u8 max_byte_seq)
2340 {
2341 int j, k, valid_byte_cnt = 0;
2342 bool dont_care_byte = false;
2343
2344 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2345 for (k = 0; k < 8; k++) {
2346 if (pat->mask[j] & 1 << k) {
2347 memcpy(byte_seq + valid_byte_cnt,
2348 &pat->pattern[j * 8 + k], 1);
2349 valid_byte_cnt++;
2350 if (dont_care_byte)
2351 return false;
2352 } else {
2353 if (valid_byte_cnt)
2354 dont_care_byte = true;
2355 }
2356
2357 if (valid_byte_cnt > max_byte_seq)
2358 return false;
2359 }
2360 }
2361
2362 byte_seq[max_byte_seq] = valid_byte_cnt;
2363
2364 return true;
2365 }
2366
2367 #ifdef CONFIG_PM
2368 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2369 struct cfg80211_wowlan *wowlan)
2370 {
2371 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2372 struct mwifiex_ds_mef_cfg mef_cfg;
2373 struct mwifiex_mef_entry *mef_entry;
2374 int i, filt_num = 0, ret;
2375 bool first_pat = true;
2376 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2377 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2378 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2379 struct mwifiex_private *priv =
2380 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2381
2382 if (!wowlan) {
2383 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2384 return 0;
2385 }
2386
2387 if (!priv->media_connected) {
2388 dev_warn(adapter->dev,
2389 "Can not configure WOWLAN in disconnected state\n");
2390 return 0;
2391 }
2392
2393 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2394 if (!mef_entry)
2395 return -ENOMEM;
2396
2397 memset(&mef_cfg, 0, sizeof(mef_cfg));
2398 mef_cfg.num_entries = 1;
2399 mef_cfg.mef_entry = mef_entry;
2400 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2401 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2402
2403 for (i = 0; i < wowlan->n_patterns; i++) {
2404 memset(byte_seq, 0, sizeof(byte_seq));
2405 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2406 byte_seq,
2407 MWIFIEX_MEF_MAX_BYTESEQ)) {
2408 wiphy_err(wiphy, "Pattern not supported\n");
2409 kfree(mef_entry);
2410 return -EOPNOTSUPP;
2411 }
2412
2413 if (!wowlan->patterns[i].pkt_offset) {
2414 if (!(byte_seq[0] & 0x01) &&
2415 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2416 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2417 continue;
2418 } else if (is_broadcast_ether_addr(byte_seq)) {
2419 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2420 continue;
2421 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2422 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2423 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2424 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2425 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2426 continue;
2427 }
2428 }
2429
2430 mef_entry->filter[filt_num].repeat = 1;
2431 mef_entry->filter[filt_num].offset =
2432 wowlan->patterns[i].pkt_offset;
2433 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2434 sizeof(byte_seq));
2435 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2436
2437 if (first_pat)
2438 first_pat = false;
2439 else
2440 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2441
2442 filt_num++;
2443 }
2444
2445 if (wowlan->magic_pkt) {
2446 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2447 mef_entry->filter[filt_num].repeat = 16;
2448 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2449 ETH_ALEN);
2450 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2451 ETH_ALEN;
2452 mef_entry->filter[filt_num].offset = 28;
2453 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2454 if (filt_num)
2455 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2456 }
2457
2458 if (!mef_cfg.criteria)
2459 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2460 MWIFIEX_CRITERIA_UNICAST |
2461 MWIFIEX_CRITERIA_MULTICAST;
2462
2463 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
2464 HostCmd_ACT_GEN_SET, 0,
2465 &mef_cfg);
2466
2467 kfree(mef_entry);
2468 return ret;
2469 }
2470
2471 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2472 {
2473 return 0;
2474 }
2475
2476 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2477 bool enabled)
2478 {
2479 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2480
2481 device_set_wakeup_enable(adapter->dev, enabled);
2482 }
2483 #endif
2484
2485 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2486 {
2487 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2488 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2489 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2490
2491 if ((byte_seq[0] & 0x01) &&
2492 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2493 return PACKET_TYPE_UNICAST;
2494 else if (!memcmp(byte_seq, bc_mac, 4))
2495 return PACKET_TYPE_BROADCAST;
2496 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2497 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2498 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2499 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2500 return PACKET_TYPE_MULTICAST;
2501
2502 return 0;
2503 }
2504
2505 static int
2506 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2507 struct cfg80211_coalesce_rules *crule,
2508 struct mwifiex_coalesce_rule *mrule)
2509 {
2510 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2511 struct filt_field_param *param;
2512 int i;
2513
2514 mrule->max_coalescing_delay = crule->delay;
2515
2516 param = mrule->params;
2517
2518 for (i = 0; i < crule->n_patterns; i++) {
2519 memset(byte_seq, 0, sizeof(byte_seq));
2520 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2521 byte_seq,
2522 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2523 dev_err(priv->adapter->dev, "Pattern not supported\n");
2524 return -EOPNOTSUPP;
2525 }
2526
2527 if (!crule->patterns[i].pkt_offset) {
2528 u8 pkt_type;
2529
2530 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2531 if (pkt_type && mrule->pkt_type) {
2532 dev_err(priv->adapter->dev,
2533 "Multiple packet types not allowed\n");
2534 return -EOPNOTSUPP;
2535 } else if (pkt_type) {
2536 mrule->pkt_type = pkt_type;
2537 continue;
2538 }
2539 }
2540
2541 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2542 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2543 else
2544 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2545
2546 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2547 memcpy(param->operand_byte_stream, byte_seq,
2548 param->operand_len);
2549 param->offset = crule->patterns[i].pkt_offset;
2550 param++;
2551
2552 mrule->num_of_fields++;
2553 }
2554
2555 if (!mrule->pkt_type) {
2556 dev_err(priv->adapter->dev,
2557 "Packet type can not be determined\n");
2558 return -EOPNOTSUPP;
2559 }
2560
2561 return 0;
2562 }
2563
2564 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2565 struct cfg80211_coalesce *coalesce)
2566 {
2567 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2568 int i, ret;
2569 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2570 struct mwifiex_private *priv =
2571 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2572
2573 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2574 if (!coalesce) {
2575 dev_dbg(adapter->dev,
2576 "Disable coalesce and reset all previous rules\n");
2577 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2578 HostCmd_ACT_GEN_SET, 0,
2579 &coalesce_cfg);
2580 }
2581
2582 coalesce_cfg.num_of_rules = coalesce->n_rules;
2583 for (i = 0; i < coalesce->n_rules; i++) {
2584 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2585 &coalesce_cfg.rule[i]);
2586 if (ret) {
2587 dev_err(priv->adapter->dev,
2588 "Recheck the patterns provided for rule %d\n",
2589 i + 1);
2590 return ret;
2591 }
2592 }
2593
2594 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2595 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg);
2596 }
2597
2598 /* station cfg80211 operations */
2599 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2600 .add_virtual_intf = mwifiex_add_virtual_intf,
2601 .del_virtual_intf = mwifiex_del_virtual_intf,
2602 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2603 .scan = mwifiex_cfg80211_scan,
2604 .connect = mwifiex_cfg80211_connect,
2605 .disconnect = mwifiex_cfg80211_disconnect,
2606 .get_station = mwifiex_cfg80211_get_station,
2607 .dump_station = mwifiex_cfg80211_dump_station,
2608 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2609 .join_ibss = mwifiex_cfg80211_join_ibss,
2610 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2611 .add_key = mwifiex_cfg80211_add_key,
2612 .del_key = mwifiex_cfg80211_del_key,
2613 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2614 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2615 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2616 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2617 .set_default_key = mwifiex_cfg80211_set_default_key,
2618 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2619 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2620 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2621 .start_ap = mwifiex_cfg80211_start_ap,
2622 .stop_ap = mwifiex_cfg80211_stop_ap,
2623 .change_beacon = mwifiex_cfg80211_change_beacon,
2624 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2625 .set_antenna = mwifiex_cfg80211_set_antenna,
2626 .del_station = mwifiex_cfg80211_del_station,
2627 #ifdef CONFIG_PM
2628 .suspend = mwifiex_cfg80211_suspend,
2629 .resume = mwifiex_cfg80211_resume,
2630 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2631 #endif
2632 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2633 };
2634
2635 #ifdef CONFIG_PM
2636 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2637 .flags = WIPHY_WOWLAN_MAGIC_PKT,
2638 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2639 .pattern_min_len = 1,
2640 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2641 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2642 };
2643 #endif
2644
2645 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2646 {
2647 if (!alpha2 || strlen(alpha2) != 2)
2648 return false;
2649
2650 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2651 return true;
2652
2653 return false;
2654 }
2655
2656 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2657 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2658 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2659 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2660 .pattern_min_len = 1,
2661 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2662 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2663 };
2664
2665 /*
2666 * This function registers the device with CFG802.11 subsystem.
2667 *
2668 * The function creates the wireless device/wiphy, populates it with
2669 * default parameters and handler function pointers, and finally
2670 * registers the device.
2671 */
2672
2673 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2674 {
2675 int ret;
2676 void *wdev_priv;
2677 struct wiphy *wiphy;
2678 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2679 u8 *country_code;
2680 u32 thr, retry;
2681
2682 /* create a new wiphy for use with cfg80211 */
2683 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2684 sizeof(struct mwifiex_adapter *));
2685 if (!wiphy) {
2686 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2687 return -ENOMEM;
2688 }
2689 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2690 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2691 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2692 wiphy->max_remain_on_channel_duration = 5000;
2693 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2694 BIT(NL80211_IFTYPE_ADHOC) |
2695 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2696 BIT(NL80211_IFTYPE_P2P_GO) |
2697 BIT(NL80211_IFTYPE_AP);
2698
2699 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2700 if (adapter->config_bands & BAND_A)
2701 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2702 else
2703 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2704
2705 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2706 wiphy->n_iface_combinations = 1;
2707
2708 /* Initialize cipher suits */
2709 wiphy->cipher_suites = mwifiex_cipher_suites;
2710 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2711
2712 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2713 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2714 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2715 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2716 WIPHY_FLAG_AP_UAPSD |
2717 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2718 wiphy->regulatory_flags |=
2719 REGULATORY_CUSTOM_REG |
2720 REGULATORY_STRICT_REG;
2721
2722 wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2723
2724 #ifdef CONFIG_PM
2725 wiphy->wowlan = &mwifiex_wowlan_support;
2726 #endif
2727
2728 wiphy->coalesce = &mwifiex_coalesce_support;
2729
2730 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2731 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2732 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2733
2734 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2735 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2736
2737 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2738 NL80211_FEATURE_INACTIVITY_TIMER |
2739 NL80211_FEATURE_LOW_PRIORITY_SCAN;
2740
2741 /* Reserve space for mwifiex specific private data for BSS */
2742 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2743
2744 wiphy->reg_notifier = mwifiex_reg_notifier;
2745
2746 /* Set struct mwifiex_adapter pointer in wiphy_priv */
2747 wdev_priv = wiphy_priv(wiphy);
2748 *(unsigned long *)wdev_priv = (unsigned long)adapter;
2749
2750 set_wiphy_dev(wiphy, priv->adapter->dev);
2751
2752 ret = wiphy_register(wiphy);
2753 if (ret < 0) {
2754 dev_err(adapter->dev,
2755 "%s: wiphy_register failed: %d\n", __func__, ret);
2756 wiphy_free(wiphy);
2757 return ret;
2758 }
2759
2760 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2761 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2762 regulatory_hint(wiphy, reg_alpha2);
2763 } else {
2764 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2765 if (country_code)
2766 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2767 country_code);
2768 }
2769
2770 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2771 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr);
2772 wiphy->frag_threshold = thr;
2773 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2774 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr);
2775 wiphy->rts_threshold = thr;
2776 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2777 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry);
2778 wiphy->retry_short = (u8) retry;
2779 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2780 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry);
2781 wiphy->retry_long = (u8) retry;
2782
2783 adapter->wiphy = wiphy;
2784 return ret;
2785 }
Linux with added FPC-III support