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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[deliverable/linux.git] / drivers / net / wireless / mwifiex / cfg80211.c
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_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
54 /* Channel 14 */
55 REG_RULE(2484-10, 2484+10, 20, 3, 20,
56 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
57 NL80211_RRF_NO_OFDM),
58 /* Channel 36 - 48 */
59 REG_RULE(5180-10, 5240+10, 40, 3, 20,
60 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
61 /* Channel 149 - 165 */
62 REG_RULE(5745-10, 5825+10, 40, 3, 20,
63 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
64 /* Channel 52 - 64 */
65 REG_RULE(5260-10, 5320+10, 40, 3, 30,
66 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
67 NL80211_RRF_DFS),
68 /* Channel 100 - 140 */
69 REG_RULE(5500-10, 5700+10, 40, 3, 30,
70 NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS |
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 ieee80211_channel *chan, bool offchan,
188 unsigned int wait, const u8 *buf, size_t len,
189 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
190 {
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
226 mwifiex_form_mgmt_frame(skb, buf, len);
227 mwifiex_queue_tx_pkt(priv, skb);
228
229 *cookie = prandom_u32() | 1;
230 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
231
232 wiphy_dbg(wiphy, "info: management frame transmitted\n");
233 return 0;
234 }
235
236 /*
237 * CFG802.11 operation handler to register a mgmt frame.
238 */
239 static void
240 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
241 struct wireless_dev *wdev,
242 u16 frame_type, bool reg)
243 {
244 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
245 u32 mask;
246
247 if (reg)
248 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
249 else
250 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
251
252 if (mask != priv->mgmt_frame_mask) {
253 priv->mgmt_frame_mask = mask;
254 mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
255 HostCmd_ACT_GEN_SET, 0,
256 &priv->mgmt_frame_mask);
257 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
258 }
259 }
260
261 /*
262 * CFG802.11 operation handler to remain on channel.
263 */
264 static int
265 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
266 struct wireless_dev *wdev,
267 struct ieee80211_channel *chan,
268 unsigned int duration, u64 *cookie)
269 {
270 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
271 int ret;
272
273 if (!chan || !cookie) {
274 wiphy_err(wiphy, "Invalid parameter for ROC\n");
275 return -EINVAL;
276 }
277
278 if (priv->roc_cfg.cookie) {
279 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
280 priv->roc_cfg.cookie);
281 return -EBUSY;
282 }
283
284 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
285 duration);
286
287 if (!ret) {
288 *cookie = prandom_u32() | 1;
289 priv->roc_cfg.cookie = *cookie;
290 priv->roc_cfg.chan = *chan;
291
292 cfg80211_ready_on_channel(wdev, *cookie, chan,
293 duration, GFP_ATOMIC);
294
295 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
296 }
297
298 return ret;
299 }
300
301 /*
302 * CFG802.11 operation handler to cancel remain on channel.
303 */
304 static int
305 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
306 struct wireless_dev *wdev, u64 cookie)
307 {
308 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
309 int ret;
310
311 if (cookie != priv->roc_cfg.cookie)
312 return -ENOENT;
313
314 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
315 &priv->roc_cfg.chan, 0);
316
317 if (!ret) {
318 cfg80211_remain_on_channel_expired(wdev, cookie,
319 &priv->roc_cfg.chan,
320 GFP_ATOMIC);
321
322 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
323
324 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
325 }
326
327 return ret;
328 }
329
330 /*
331 * CFG802.11 operation handler to set Tx power.
332 */
333 static int
334 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
335 struct wireless_dev *wdev,
336 enum nl80211_tx_power_setting type,
337 int mbm)
338 {
339 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
340 struct mwifiex_private *priv;
341 struct mwifiex_power_cfg power_cfg;
342 int dbm = MBM_TO_DBM(mbm);
343
344 if (type == NL80211_TX_POWER_FIXED) {
345 power_cfg.is_power_auto = 0;
346 power_cfg.power_level = dbm;
347 } else {
348 power_cfg.is_power_auto = 1;
349 }
350
351 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
352
353 return mwifiex_set_tx_power(priv, &power_cfg);
354 }
355
356 /*
357 * CFG802.11 operation handler to set Power Save option.
358 *
359 * The timeout value, if provided, is currently ignored.
360 */
361 static int
362 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
363 struct net_device *dev,
364 bool enabled, int timeout)
365 {
366 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
367 u32 ps_mode;
368
369 if (timeout)
370 wiphy_dbg(wiphy,
371 "info: ignore timeout value for IEEE Power Save\n");
372
373 ps_mode = enabled;
374
375 return mwifiex_drv_set_power(priv, &ps_mode);
376 }
377
378 /*
379 * CFG802.11 operation handler to set the default network key.
380 */
381 static int
382 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
383 u8 key_index, bool unicast,
384 bool multicast)
385 {
386 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
387
388 /* Return if WEP key not configured */
389 if (!priv->sec_info.wep_enabled)
390 return 0;
391
392 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
393 priv->wep_key_curr_index = key_index;
394 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
395 NULL, 0)) {
396 wiphy_err(wiphy, "set default Tx key index\n");
397 return -EFAULT;
398 }
399
400 return 0;
401 }
402
403 /*
404 * CFG802.11 operation handler to add a network key.
405 */
406 static int
407 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
408 u8 key_index, bool pairwise, const u8 *mac_addr,
409 struct key_params *params)
410 {
411 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
412 struct mwifiex_wep_key *wep_key;
413 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
414 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
415
416 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
417 (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
418 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
419 if (params->key && params->key_len) {
420 wep_key = &priv->wep_key[key_index];
421 memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
422 memcpy(wep_key->key_material, params->key,
423 params->key_len);
424 wep_key->key_index = key_index;
425 wep_key->key_length = params->key_len;
426 priv->sec_info.wep_enabled = 1;
427 }
428 return 0;
429 }
430
431 if (mwifiex_set_encode(priv, params, params->key, params->key_len,
432 key_index, peer_mac, 0)) {
433 wiphy_err(wiphy, "crypto keys added\n");
434 return -EFAULT;
435 }
436
437 return 0;
438 }
439
440 /*
441 * This function sends domain information to the firmware.
442 *
443 * The following information are passed to the firmware -
444 * - Country codes
445 * - Sub bands (first channel, number of channels, maximum Tx power)
446 */
447 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
448 {
449 u8 no_of_triplet = 0;
450 struct ieee80211_country_ie_triplet *t;
451 u8 no_of_parsed_chan = 0;
452 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
453 u8 i, flag = 0;
454 enum ieee80211_band band;
455 struct ieee80211_supported_band *sband;
456 struct ieee80211_channel *ch;
457 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
458 struct mwifiex_private *priv;
459 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
460
461 /* Set country code */
462 domain_info->country_code[0] = adapter->country_code[0];
463 domain_info->country_code[1] = adapter->country_code[1];
464 domain_info->country_code[2] = ' ';
465
466 band = mwifiex_band_to_radio_type(adapter->config_bands);
467 if (!wiphy->bands[band]) {
468 wiphy_err(wiphy, "11D: setting domain info in FW\n");
469 return -1;
470 }
471
472 sband = wiphy->bands[band];
473
474 for (i = 0; i < sband->n_channels ; i++) {
475 ch = &sband->channels[i];
476 if (ch->flags & IEEE80211_CHAN_DISABLED)
477 continue;
478
479 if (!flag) {
480 flag = 1;
481 first_chan = (u32) ch->hw_value;
482 next_chan = first_chan;
483 max_pwr = ch->max_power;
484 no_of_parsed_chan = 1;
485 continue;
486 }
487
488 if (ch->hw_value == next_chan + 1 &&
489 ch->max_power == max_pwr) {
490 next_chan++;
491 no_of_parsed_chan++;
492 } else {
493 t = &domain_info->triplet[no_of_triplet];
494 t->chans.first_channel = first_chan;
495 t->chans.num_channels = no_of_parsed_chan;
496 t->chans.max_power = max_pwr;
497 no_of_triplet++;
498 first_chan = (u32) ch->hw_value;
499 next_chan = first_chan;
500 max_pwr = ch->max_power;
501 no_of_parsed_chan = 1;
502 }
503 }
504
505 if (flag) {
506 t = &domain_info->triplet[no_of_triplet];
507 t->chans.first_channel = first_chan;
508 t->chans.num_channels = no_of_parsed_chan;
509 t->chans.max_power = max_pwr;
510 no_of_triplet++;
511 }
512
513 domain_info->no_of_triplet = no_of_triplet;
514
515 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
516
517 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
518 HostCmd_ACT_GEN_SET, 0, NULL)) {
519 wiphy_err(wiphy, "11D: setting domain info in FW\n");
520 return -1;
521 }
522
523 return 0;
524 }
525
526 /*
527 * CFG802.11 regulatory domain callback function.
528 *
529 * This function is called when the regulatory domain is changed due to the
530 * following reasons -
531 * - Set by driver
532 * - Set by system core
533 * - Set by user
534 * - Set bt Country IE
535 */
536 static void mwifiex_reg_notifier(struct wiphy *wiphy,
537 struct regulatory_request *request)
538 {
539 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
540
541 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
542 request->alpha2[0], request->alpha2[1]);
543
544 memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
545
546 switch (request->initiator) {
547 case NL80211_REGDOM_SET_BY_DRIVER:
548 case NL80211_REGDOM_SET_BY_CORE:
549 case NL80211_REGDOM_SET_BY_USER:
550 break;
551 /* Todo: apply driver specific changes in channel flags based
552 on the request initiator if necessary. */
553 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
554 break;
555 }
556 mwifiex_send_domain_info_cmd_fw(wiphy);
557 }
558
559 /*
560 * This function sets the fragmentation threshold.
561 *
562 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
563 * and MWIFIEX_FRAG_MAX_VALUE.
564 */
565 static int
566 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
567 {
568 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
569 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
570 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
571
572 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
573 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
574 &frag_thr);
575 }
576
577 /*
578 * This function sets the RTS threshold.
579
580 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
581 * and MWIFIEX_RTS_MAX_VALUE.
582 */
583 static int
584 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
585 {
586 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
587 rts_thr = MWIFIEX_RTS_MAX_VALUE;
588
589 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
590 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
591 &rts_thr);
592 }
593
594 /*
595 * CFG802.11 operation handler to set wiphy parameters.
596 *
597 * This function can be used to set the RTS threshold and the
598 * Fragmentation threshold of the driver.
599 */
600 static int
601 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
602 {
603 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
604 struct mwifiex_private *priv;
605 struct mwifiex_uap_bss_param *bss_cfg;
606 int ret, bss_started, i;
607
608 for (i = 0; i < adapter->priv_num; i++) {
609 priv = adapter->priv[i];
610
611 switch (priv->bss_role) {
612 case MWIFIEX_BSS_ROLE_UAP:
613 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
614 GFP_KERNEL);
615 if (!bss_cfg)
616 return -ENOMEM;
617
618 mwifiex_set_sys_config_invalid_data(bss_cfg);
619
620 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
621 bss_cfg->rts_threshold = wiphy->rts_threshold;
622 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
623 bss_cfg->frag_threshold = wiphy->frag_threshold;
624 if (changed & WIPHY_PARAM_RETRY_LONG)
625 bss_cfg->retry_limit = wiphy->retry_long;
626
627 bss_started = priv->bss_started;
628
629 ret = mwifiex_send_cmd_sync(priv,
630 HostCmd_CMD_UAP_BSS_STOP,
631 HostCmd_ACT_GEN_SET, 0,
632 NULL);
633 if (ret) {
634 wiphy_err(wiphy, "Failed to stop the BSS\n");
635 kfree(bss_cfg);
636 return ret;
637 }
638
639 ret = mwifiex_send_cmd_async(priv,
640 HostCmd_CMD_UAP_SYS_CONFIG,
641 HostCmd_ACT_GEN_SET,
642 UAP_BSS_PARAMS_I, bss_cfg);
643
644 kfree(bss_cfg);
645
646 if (ret) {
647 wiphy_err(wiphy, "Failed to set bss config\n");
648 return ret;
649 }
650
651 if (!bss_started)
652 break;
653
654 ret = mwifiex_send_cmd_async(priv,
655 HostCmd_CMD_UAP_BSS_START,
656 HostCmd_ACT_GEN_SET, 0,
657 NULL);
658 if (ret) {
659 wiphy_err(wiphy, "Failed to start BSS\n");
660 return ret;
661 }
662
663 break;
664 case MWIFIEX_BSS_ROLE_STA:
665 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
666 ret = mwifiex_set_rts(priv,
667 wiphy->rts_threshold);
668 if (ret)
669 return ret;
670 }
671 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
672 ret = mwifiex_set_frag(priv,
673 wiphy->frag_threshold);
674 if (ret)
675 return ret;
676 }
677 break;
678 }
679 }
680
681 return 0;
682 }
683
684 static int
685 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
686 {
687 u16 mode = P2P_MODE_DISABLE;
688
689 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
690 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
691
692 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
693 HostCmd_ACT_GEN_SET, 0, &mode))
694 return -1;
695
696 return 0;
697 }
698
699 /*
700 * This function initializes the functionalities for P2P client.
701 * The P2P client initialization sequence is:
702 * disable -> device -> client
703 */
704 static int
705 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
706 {
707 u16 mode;
708
709 if (mwifiex_cfg80211_deinit_p2p(priv))
710 return -1;
711
712 mode = P2P_MODE_DEVICE;
713 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
714 HostCmd_ACT_GEN_SET, 0, &mode))
715 return -1;
716
717 mode = P2P_MODE_CLIENT;
718 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
719 HostCmd_ACT_GEN_SET, 0, &mode))
720 return -1;
721
722 return 0;
723 }
724
725 /*
726 * This function initializes the functionalities for P2P GO.
727 * The P2P GO initialization sequence is:
728 * disable -> device -> GO
729 */
730 static int
731 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
732 {
733 u16 mode;
734
735 if (mwifiex_cfg80211_deinit_p2p(priv))
736 return -1;
737
738 mode = P2P_MODE_DEVICE;
739 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
740 HostCmd_ACT_GEN_SET, 0, &mode))
741 return -1;
742
743 mode = P2P_MODE_GO;
744 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
745 HostCmd_ACT_GEN_SET, 0, &mode))
746 return -1;
747
748 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
749 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
750
751 return 0;
752 }
753
754 /*
755 * CFG802.11 operation handler to change interface type.
756 */
757 static int
758 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
759 struct net_device *dev,
760 enum nl80211_iftype type, u32 *flags,
761 struct vif_params *params)
762 {
763 int ret;
764 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
765
766 switch (dev->ieee80211_ptr->iftype) {
767 case NL80211_IFTYPE_ADHOC:
768 switch (type) {
769 case NL80211_IFTYPE_STATION:
770 break;
771 case NL80211_IFTYPE_UNSPECIFIED:
772 wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
773 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */
774 return 0;
775 case NL80211_IFTYPE_AP:
776 default:
777 wiphy_err(wiphy, "%s: changing to %d not supported\n",
778 dev->name, type);
779 return -EOPNOTSUPP;
780 }
781 break;
782 case NL80211_IFTYPE_STATION:
783 switch (type) {
784 case NL80211_IFTYPE_ADHOC:
785 break;
786 case NL80211_IFTYPE_P2P_CLIENT:
787 if (mwifiex_cfg80211_init_p2p_client(priv))
788 return -EFAULT;
789 dev->ieee80211_ptr->iftype = type;
790 return 0;
791 case NL80211_IFTYPE_P2P_GO:
792 if (mwifiex_cfg80211_init_p2p_go(priv))
793 return -EFAULT;
794 dev->ieee80211_ptr->iftype = type;
795 return 0;
796 case NL80211_IFTYPE_UNSPECIFIED:
797 wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
798 case NL80211_IFTYPE_STATION: /* This shouldn't happen */
799 return 0;
800 case NL80211_IFTYPE_AP:
801 default:
802 wiphy_err(wiphy, "%s: changing to %d not supported\n",
803 dev->name, type);
804 return -EOPNOTSUPP;
805 }
806 break;
807 case NL80211_IFTYPE_AP:
808 switch (type) {
809 case NL80211_IFTYPE_UNSPECIFIED:
810 wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
811 case NL80211_IFTYPE_AP: /* This shouldn't happen */
812 return 0;
813 case NL80211_IFTYPE_ADHOC:
814 case NL80211_IFTYPE_STATION:
815 default:
816 wiphy_err(wiphy, "%s: changing to %d not supported\n",
817 dev->name, type);
818 return -EOPNOTSUPP;
819 }
820 break;
821 case NL80211_IFTYPE_P2P_CLIENT:
822 case NL80211_IFTYPE_P2P_GO:
823 switch (type) {
824 case NL80211_IFTYPE_STATION:
825 if (mwifiex_cfg80211_deinit_p2p(priv))
826 return -EFAULT;
827 dev->ieee80211_ptr->iftype = type;
828 return 0;
829 default:
830 return -EOPNOTSUPP;
831 }
832 break;
833 default:
834 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
835 dev->name, dev->ieee80211_ptr->iftype);
836 return -EOPNOTSUPP;
837 }
838
839 dev->ieee80211_ptr->iftype = type;
840 priv->bss_mode = type;
841 mwifiex_deauthenticate(priv, NULL);
842
843 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
844
845 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
846 HostCmd_ACT_GEN_SET, 0, NULL);
847
848 return ret;
849 }
850
851 static void
852 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
853 struct rate_info *rate)
854 {
855 struct mwifiex_adapter *adapter = priv->adapter;
856
857 if (adapter->is_hw_11ac_capable) {
858 /* bit[1-0]: 00=LG 01=HT 10=VHT */
859 if (tx_htinfo & BIT(0)) {
860 /* HT */
861 rate->mcs = priv->tx_rate;
862 rate->flags |= RATE_INFO_FLAGS_MCS;
863 }
864 if (tx_htinfo & BIT(1)) {
865 /* VHT */
866 rate->mcs = priv->tx_rate & 0x0F;
867 rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
868 }
869
870 if (tx_htinfo & (BIT(1) | BIT(0))) {
871 /* HT or VHT */
872 switch (tx_htinfo & (BIT(3) | BIT(2))) {
873 case 0:
874 /* This will be 20MHz */
875 break;
876 case (BIT(2)):
877 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
878 break;
879 case (BIT(3)):
880 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
881 break;
882 case (BIT(3) | BIT(2)):
883 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
884 break;
885 }
886
887 if (tx_htinfo & BIT(4))
888 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
889
890 if ((priv->tx_rate >> 4) == 1)
891 rate->nss = 2;
892 else
893 rate->nss = 1;
894 }
895 } else {
896 /*
897 * Bit 0 in tx_htinfo indicates that current Tx rate
898 * is 11n rate. Valid MCS index values for us are 0 to 15.
899 */
900 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
901 rate->mcs = priv->tx_rate;
902 rate->flags |= RATE_INFO_FLAGS_MCS;
903 if (tx_htinfo & BIT(1))
904 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
905 if (tx_htinfo & BIT(2))
906 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
907 }
908 }
909 }
910
911 /*
912 * This function dumps the station information on a buffer.
913 *
914 * The following information are shown -
915 * - Total bytes transmitted
916 * - Total bytes received
917 * - Total packets transmitted
918 * - Total packets received
919 * - Signal quality level
920 * - Transmission rate
921 */
922 static int
923 mwifiex_dump_station_info(struct mwifiex_private *priv,
924 struct station_info *sinfo)
925 {
926 u32 rate;
927
928 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
929 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
930 STATION_INFO_TX_BITRATE |
931 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
932
933 /* Get signal information from the firmware */
934 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
935 HostCmd_ACT_GEN_GET, 0, NULL)) {
936 dev_err(priv->adapter->dev, "failed to get signal information\n");
937 return -EFAULT;
938 }
939
940 if (mwifiex_drv_get_data_rate(priv, &rate)) {
941 dev_err(priv->adapter->dev, "getting data rate\n");
942 return -EFAULT;
943 }
944
945 /* Get DTIM period information from firmware */
946 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
947 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
948 &priv->dtim_period);
949
950 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
951
952 sinfo->signal_avg = priv->bcn_rssi_avg;
953 sinfo->rx_bytes = priv->stats.rx_bytes;
954 sinfo->tx_bytes = priv->stats.tx_bytes;
955 sinfo->rx_packets = priv->stats.rx_packets;
956 sinfo->tx_packets = priv->stats.tx_packets;
957 sinfo->signal = priv->bcn_rssi_avg;
958 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
959 sinfo->txrate.legacy = rate * 5;
960
961 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
962 sinfo->filled |= STATION_INFO_BSS_PARAM;
963 sinfo->bss_param.flags = 0;
964 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
965 WLAN_CAPABILITY_SHORT_PREAMBLE)
966 sinfo->bss_param.flags |=
967 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
968 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
969 WLAN_CAPABILITY_SHORT_SLOT_TIME)
970 sinfo->bss_param.flags |=
971 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
972 sinfo->bss_param.dtim_period = priv->dtim_period;
973 sinfo->bss_param.beacon_interval =
974 priv->curr_bss_params.bss_descriptor.beacon_period;
975 }
976
977 return 0;
978 }
979
980 /*
981 * CFG802.11 operation handler to get station information.
982 *
983 * This function only works in connected mode, and dumps the
984 * requested station information, if available.
985 */
986 static int
987 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
988 u8 *mac, struct station_info *sinfo)
989 {
990 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
991
992 if (!priv->media_connected)
993 return -ENOENT;
994 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
995 return -ENOENT;
996
997 return mwifiex_dump_station_info(priv, sinfo);
998 }
999
1000 /*
1001 * CFG802.11 operation handler to dump station information.
1002 */
1003 static int
1004 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1005 int idx, u8 *mac, struct station_info *sinfo)
1006 {
1007 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1008
1009 if (!priv->media_connected || idx)
1010 return -ENOENT;
1011
1012 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1013
1014 return mwifiex_dump_station_info(priv, sinfo);
1015 }
1016
1017 /* Supported rates to be advertised to the cfg80211 */
1018 static struct ieee80211_rate mwifiex_rates[] = {
1019 {.bitrate = 10, .hw_value = 2, },
1020 {.bitrate = 20, .hw_value = 4, },
1021 {.bitrate = 55, .hw_value = 11, },
1022 {.bitrate = 110, .hw_value = 22, },
1023 {.bitrate = 60, .hw_value = 12, },
1024 {.bitrate = 90, .hw_value = 18, },
1025 {.bitrate = 120, .hw_value = 24, },
1026 {.bitrate = 180, .hw_value = 36, },
1027 {.bitrate = 240, .hw_value = 48, },
1028 {.bitrate = 360, .hw_value = 72, },
1029 {.bitrate = 480, .hw_value = 96, },
1030 {.bitrate = 540, .hw_value = 108, },
1031 };
1032
1033 /* Channel definitions to be advertised to cfg80211 */
1034 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1035 {.center_freq = 2412, .hw_value = 1, },
1036 {.center_freq = 2417, .hw_value = 2, },
1037 {.center_freq = 2422, .hw_value = 3, },
1038 {.center_freq = 2427, .hw_value = 4, },
1039 {.center_freq = 2432, .hw_value = 5, },
1040 {.center_freq = 2437, .hw_value = 6, },
1041 {.center_freq = 2442, .hw_value = 7, },
1042 {.center_freq = 2447, .hw_value = 8, },
1043 {.center_freq = 2452, .hw_value = 9, },
1044 {.center_freq = 2457, .hw_value = 10, },
1045 {.center_freq = 2462, .hw_value = 11, },
1046 {.center_freq = 2467, .hw_value = 12, },
1047 {.center_freq = 2472, .hw_value = 13, },
1048 {.center_freq = 2484, .hw_value = 14, },
1049 };
1050
1051 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1052 .channels = mwifiex_channels_2ghz,
1053 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1054 .bitrates = mwifiex_rates,
1055 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1056 };
1057
1058 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1059 {.center_freq = 5040, .hw_value = 8, },
1060 {.center_freq = 5060, .hw_value = 12, },
1061 {.center_freq = 5080, .hw_value = 16, },
1062 {.center_freq = 5170, .hw_value = 34, },
1063 {.center_freq = 5190, .hw_value = 38, },
1064 {.center_freq = 5210, .hw_value = 42, },
1065 {.center_freq = 5230, .hw_value = 46, },
1066 {.center_freq = 5180, .hw_value = 36, },
1067 {.center_freq = 5200, .hw_value = 40, },
1068 {.center_freq = 5220, .hw_value = 44, },
1069 {.center_freq = 5240, .hw_value = 48, },
1070 {.center_freq = 5260, .hw_value = 52, },
1071 {.center_freq = 5280, .hw_value = 56, },
1072 {.center_freq = 5300, .hw_value = 60, },
1073 {.center_freq = 5320, .hw_value = 64, },
1074 {.center_freq = 5500, .hw_value = 100, },
1075 {.center_freq = 5520, .hw_value = 104, },
1076 {.center_freq = 5540, .hw_value = 108, },
1077 {.center_freq = 5560, .hw_value = 112, },
1078 {.center_freq = 5580, .hw_value = 116, },
1079 {.center_freq = 5600, .hw_value = 120, },
1080 {.center_freq = 5620, .hw_value = 124, },
1081 {.center_freq = 5640, .hw_value = 128, },
1082 {.center_freq = 5660, .hw_value = 132, },
1083 {.center_freq = 5680, .hw_value = 136, },
1084 {.center_freq = 5700, .hw_value = 140, },
1085 {.center_freq = 5745, .hw_value = 149, },
1086 {.center_freq = 5765, .hw_value = 153, },
1087 {.center_freq = 5785, .hw_value = 157, },
1088 {.center_freq = 5805, .hw_value = 161, },
1089 {.center_freq = 5825, .hw_value = 165, },
1090 };
1091
1092 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1093 .channels = mwifiex_channels_5ghz,
1094 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1095 .bitrates = mwifiex_rates + 4,
1096 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1097 };
1098
1099
1100 /* Supported crypto cipher suits to be advertised to cfg80211 */
1101 static const u32 mwifiex_cipher_suites[] = {
1102 WLAN_CIPHER_SUITE_WEP40,
1103 WLAN_CIPHER_SUITE_WEP104,
1104 WLAN_CIPHER_SUITE_TKIP,
1105 WLAN_CIPHER_SUITE_CCMP,
1106 WLAN_CIPHER_SUITE_AES_CMAC,
1107 };
1108
1109 /* Supported mgmt frame types to be advertised to cfg80211 */
1110 static const struct ieee80211_txrx_stypes
1111 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1112 [NL80211_IFTYPE_STATION] = {
1113 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1114 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1115 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1116 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1117 },
1118 [NL80211_IFTYPE_AP] = {
1119 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1120 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1121 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1122 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1123 },
1124 [NL80211_IFTYPE_P2P_CLIENT] = {
1125 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1126 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1127 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1128 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1129 },
1130 [NL80211_IFTYPE_P2P_GO] = {
1131 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1132 BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1133 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1134 BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1135 },
1136 };
1137
1138 /*
1139 * CFG802.11 operation handler for setting bit rates.
1140 *
1141 * Function configures data rates to firmware using bitrate mask
1142 * provided by cfg80211.
1143 */
1144 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1145 struct net_device *dev,
1146 const u8 *peer,
1147 const struct cfg80211_bitrate_mask *mask)
1148 {
1149 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1150 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1151 enum ieee80211_band band;
1152
1153 if (!priv->media_connected) {
1154 dev_err(priv->adapter->dev,
1155 "Can not set Tx data rate in disconnected state\n");
1156 return -EINVAL;
1157 }
1158
1159 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1160
1161 memset(bitmap_rates, 0, sizeof(bitmap_rates));
1162
1163 /* Fill HR/DSSS rates. */
1164 if (band == IEEE80211_BAND_2GHZ)
1165 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1166
1167 /* Fill OFDM rates */
1168 if (band == IEEE80211_BAND_2GHZ)
1169 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1170 else
1171 bitmap_rates[1] = mask->control[band].legacy;
1172
1173 /* Fill MCS rates */
1174 bitmap_rates[2] = mask->control[band].mcs[0];
1175 if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1176 bitmap_rates[2] |= mask->control[band].mcs[1] << 8;
1177
1178 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1179 HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1180 }
1181
1182 /*
1183 * CFG802.11 operation handler for connection quality monitoring.
1184 *
1185 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1186 * events to FW.
1187 */
1188 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1189 struct net_device *dev,
1190 s32 rssi_thold, u32 rssi_hyst)
1191 {
1192 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1193 struct mwifiex_ds_misc_subsc_evt subsc_evt;
1194
1195 priv->cqm_rssi_thold = rssi_thold;
1196 priv->cqm_rssi_hyst = rssi_hyst;
1197
1198 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1199 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1200
1201 /* Subscribe/unsubscribe low and high rssi events */
1202 if (rssi_thold && rssi_hyst) {
1203 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1204 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1205 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1206 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1207 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1208 return mwifiex_send_cmd_sync(priv,
1209 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1210 0, 0, &subsc_evt);
1211 } else {
1212 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1213 return mwifiex_send_cmd_sync(priv,
1214 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1215 0, 0, &subsc_evt);
1216 }
1217
1218 return 0;
1219 }
1220
1221 /* cfg80211 operation handler for change_beacon.
1222 * Function retrieves and sets modified management IEs to FW.
1223 */
1224 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1225 struct net_device *dev,
1226 struct cfg80211_beacon_data *data)
1227 {
1228 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1229
1230 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1231 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1232 return -EINVAL;
1233 }
1234
1235 if (!priv->bss_started) {
1236 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1237 return -EINVAL;
1238 }
1239
1240 if (mwifiex_set_mgmt_ies(priv, data)) {
1241 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1242 return -EFAULT;
1243 }
1244
1245 return 0;
1246 }
1247
1248 /* cfg80211 operation handler for del_station.
1249 * Function deauthenticates station which value is provided in mac parameter.
1250 * If mac is NULL/broadcast, all stations in associated station list are
1251 * deauthenticated. If bss is not started or there are no stations in
1252 * associated stations list, no action is taken.
1253 */
1254 static int
1255 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1256 u8 *mac)
1257 {
1258 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1259 struct mwifiex_sta_node *sta_node;
1260 unsigned long flags;
1261
1262 if (list_empty(&priv->sta_list) || !priv->bss_started)
1263 return 0;
1264
1265 if (!mac || is_broadcast_ether_addr(mac)) {
1266 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1267 list_for_each_entry(sta_node, &priv->sta_list, list) {
1268 if (mwifiex_send_cmd_sync(priv,
1269 HostCmd_CMD_UAP_STA_DEAUTH,
1270 HostCmd_ACT_GEN_SET, 0,
1271 sta_node->mac_addr))
1272 return -1;
1273 mwifiex_uap_del_sta_data(priv, sta_node);
1274 }
1275 } else {
1276 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1277 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1278 sta_node = mwifiex_get_sta_entry(priv, mac);
1279 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1280 if (sta_node) {
1281 if (mwifiex_send_cmd_sync(priv,
1282 HostCmd_CMD_UAP_STA_DEAUTH,
1283 HostCmd_ACT_GEN_SET, 0,
1284 sta_node->mac_addr))
1285 return -1;
1286 mwifiex_uap_del_sta_data(priv, sta_node);
1287 }
1288 }
1289
1290 return 0;
1291 }
1292
1293 static int
1294 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1295 {
1296 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1297 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1298 MWIFIEX_BSS_ROLE_ANY);
1299 struct mwifiex_ds_ant_cfg ant_cfg;
1300
1301 if (!tx_ant || !rx_ant)
1302 return -EOPNOTSUPP;
1303
1304 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1305 /* Not a MIMO chip. User should provide specific antenna number
1306 * for Tx/Rx path or enable all antennas for diversity
1307 */
1308 if (tx_ant != rx_ant)
1309 return -EOPNOTSUPP;
1310
1311 if ((tx_ant & (tx_ant - 1)) &&
1312 (tx_ant != BIT(adapter->number_of_antenna) - 1))
1313 return -EOPNOTSUPP;
1314
1315 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1316 (priv->adapter->number_of_antenna > 1)) {
1317 tx_ant = RF_ANTENNA_AUTO;
1318 rx_ant = RF_ANTENNA_AUTO;
1319 }
1320 }
1321
1322 ant_cfg.tx_ant = tx_ant;
1323 ant_cfg.rx_ant = rx_ant;
1324
1325 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1326 HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1327 }
1328
1329 /* cfg80211 operation handler for stop ap.
1330 * Function stops BSS running at uAP interface.
1331 */
1332 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1333 {
1334 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1335
1336 if (mwifiex_del_mgmt_ies(priv))
1337 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1338
1339 priv->ap_11n_enabled = 0;
1340
1341 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1342 HostCmd_ACT_GEN_SET, 0, NULL)) {
1343 wiphy_err(wiphy, "Failed to stop the BSS\n");
1344 return -1;
1345 }
1346
1347 return 0;
1348 }
1349
1350 /* cfg80211 operation handler for start_ap.
1351 * Function sets beacon period, DTIM period, SSID and security into
1352 * AP config structure.
1353 * AP is configured with these settings and BSS is started.
1354 */
1355 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1356 struct net_device *dev,
1357 struct cfg80211_ap_settings *params)
1358 {
1359 struct mwifiex_uap_bss_param *bss_cfg;
1360 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1361 u8 config_bands = 0;
1362
1363 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1364 return -1;
1365 if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1366 return -1;
1367
1368 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1369 if (!bss_cfg)
1370 return -ENOMEM;
1371
1372 mwifiex_set_sys_config_invalid_data(bss_cfg);
1373
1374 if (params->beacon_interval)
1375 bss_cfg->beacon_period = params->beacon_interval;
1376 if (params->dtim_period)
1377 bss_cfg->dtim_period = params->dtim_period;
1378
1379 if (params->ssid && params->ssid_len) {
1380 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1381 bss_cfg->ssid.ssid_len = params->ssid_len;
1382 }
1383
1384 switch (params->hidden_ssid) {
1385 case NL80211_HIDDEN_SSID_NOT_IN_USE:
1386 bss_cfg->bcast_ssid_ctl = 1;
1387 break;
1388 case NL80211_HIDDEN_SSID_ZERO_LEN:
1389 bss_cfg->bcast_ssid_ctl = 0;
1390 break;
1391 case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1392 /* firmware doesn't support this type of hidden SSID */
1393 default:
1394 kfree(bss_cfg);
1395 return -EINVAL;
1396 }
1397
1398 bss_cfg->channel = ieee80211_frequency_to_channel(
1399 params->chandef.chan->center_freq);
1400
1401 /* Set appropriate bands */
1402 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1403 bss_cfg->band_cfg = BAND_CONFIG_BG;
1404 config_bands = BAND_B | BAND_G;
1405
1406 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1407 config_bands |= BAND_GN;
1408
1409 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1410 config_bands |= BAND_GAC;
1411 } else {
1412 bss_cfg->band_cfg = BAND_CONFIG_A;
1413 config_bands = BAND_A;
1414
1415 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1416 config_bands |= BAND_AN;
1417
1418 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1419 config_bands |= BAND_AAC;
1420 }
1421
1422 if (!((config_bands | priv->adapter->fw_bands) &
1423 ~priv->adapter->fw_bands))
1424 priv->adapter->config_bands = config_bands;
1425
1426 mwifiex_set_uap_rates(bss_cfg, params);
1427 mwifiex_send_domain_info_cmd_fw(wiphy);
1428
1429 if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1430 kfree(bss_cfg);
1431 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1432 return -1;
1433 }
1434
1435 mwifiex_set_ht_params(priv, bss_cfg, params);
1436
1437 if (priv->adapter->is_hw_11ac_capable) {
1438 mwifiex_set_vht_params(priv, bss_cfg, params);
1439 mwifiex_set_vht_width(priv, params->chandef.width,
1440 priv->ap_11ac_enabled);
1441 }
1442
1443 if (priv->ap_11ac_enabled)
1444 mwifiex_set_11ac_ba_params(priv);
1445 else
1446 mwifiex_set_ba_params(priv);
1447
1448 mwifiex_set_wmm_params(priv, bss_cfg, params);
1449
1450 if (params->inactivity_timeout > 0) {
1451 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1452 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1453 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1454 }
1455
1456 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1457 HostCmd_ACT_GEN_SET, 0, NULL)) {
1458 wiphy_err(wiphy, "Failed to stop the BSS\n");
1459 kfree(bss_cfg);
1460 return -1;
1461 }
1462
1463 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1464 HostCmd_ACT_GEN_SET,
1465 UAP_BSS_PARAMS_I, bss_cfg)) {
1466 wiphy_err(wiphy, "Failed to set the SSID\n");
1467 kfree(bss_cfg);
1468 return -1;
1469 }
1470
1471 kfree(bss_cfg);
1472
1473 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1474 HostCmd_ACT_GEN_SET, 0, NULL)) {
1475 wiphy_err(wiphy, "Failed to start the BSS\n");
1476 return -1;
1477 }
1478
1479 if (priv->sec_info.wep_enabled)
1480 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1481 else
1482 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1483
1484 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1485 HostCmd_ACT_GEN_SET, 0,
1486 &priv->curr_pkt_filter))
1487 return -1;
1488
1489 return 0;
1490 }
1491
1492 /*
1493 * CFG802.11 operation handler for disconnection request.
1494 *
1495 * This function does not work when there is already a disconnection
1496 * procedure going on.
1497 */
1498 static int
1499 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1500 u16 reason_code)
1501 {
1502 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1503
1504 if (mwifiex_deauthenticate(priv, NULL))
1505 return -EFAULT;
1506
1507 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1508 " reason code %d\n", priv->cfg_bssid, reason_code);
1509
1510 memset(priv->cfg_bssid, 0, ETH_ALEN);
1511 priv->hs2_enabled = false;
1512
1513 return 0;
1514 }
1515
1516 /*
1517 * This function informs the CFG802.11 subsystem of a new IBSS.
1518 *
1519 * The following information are sent to the CFG802.11 subsystem
1520 * to register the new IBSS. If we do not register the new IBSS,
1521 * a kernel panic will result.
1522 * - SSID
1523 * - SSID length
1524 * - BSSID
1525 * - Channel
1526 */
1527 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1528 {
1529 struct ieee80211_channel *chan;
1530 struct mwifiex_bss_info bss_info;
1531 struct cfg80211_bss *bss;
1532 int ie_len;
1533 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1534 enum ieee80211_band band;
1535
1536 if (mwifiex_get_bss_info(priv, &bss_info))
1537 return -1;
1538
1539 ie_buf[0] = WLAN_EID_SSID;
1540 ie_buf[1] = bss_info.ssid.ssid_len;
1541
1542 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1543 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1544 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1545
1546 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1547 chan = __ieee80211_get_channel(priv->wdev->wiphy,
1548 ieee80211_channel_to_frequency(bss_info.bss_chan,
1549 band));
1550
1551 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1552 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1553 0, ie_buf, ie_len, 0, GFP_KERNEL);
1554 cfg80211_put_bss(priv->wdev->wiphy, bss);
1555 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1556
1557 return 0;
1558 }
1559
1560 /*
1561 * This function connects with a BSS.
1562 *
1563 * This function handles both Infra and Ad-Hoc modes. It also performs
1564 * validity checking on the provided parameters, disconnects from the
1565 * current BSS (if any), sets up the association/scan parameters,
1566 * including security settings, and performs specific SSID scan before
1567 * trying to connect.
1568 *
1569 * For Infra mode, the function returns failure if the specified SSID
1570 * is not found in scan table. However, for Ad-Hoc mode, it can create
1571 * the IBSS if it does not exist. On successful completion in either case,
1572 * the function notifies the CFG802.11 subsystem of the new BSS connection.
1573 */
1574 static int
1575 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1576 u8 *bssid, int mode, struct ieee80211_channel *channel,
1577 struct cfg80211_connect_params *sme, bool privacy)
1578 {
1579 struct cfg80211_ssid req_ssid;
1580 int ret, auth_type = 0;
1581 struct cfg80211_bss *bss = NULL;
1582 u8 is_scanning_required = 0;
1583
1584 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1585
1586 req_ssid.ssid_len = ssid_len;
1587 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1588 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1589 return -EINVAL;
1590 }
1591
1592 memcpy(req_ssid.ssid, ssid, ssid_len);
1593 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1594 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1595 return -EINVAL;
1596 }
1597
1598 /* disconnect before try to associate */
1599 mwifiex_deauthenticate(priv, NULL);
1600
1601 /* As this is new association, clear locally stored
1602 * keys and security related flags */
1603 priv->sec_info.wpa_enabled = false;
1604 priv->sec_info.wpa2_enabled = false;
1605 priv->wep_key_curr_index = 0;
1606 priv->sec_info.encryption_mode = 0;
1607 priv->sec_info.is_authtype_auto = 0;
1608 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1609
1610 if (mode == NL80211_IFTYPE_ADHOC) {
1611 /* "privacy" is set only for ad-hoc mode */
1612 if (privacy) {
1613 /*
1614 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1615 * the firmware can find a matching network from the
1616 * scan. The cfg80211 does not give us the encryption
1617 * mode at this stage so just setting it to WEP here.
1618 */
1619 priv->sec_info.encryption_mode =
1620 WLAN_CIPHER_SUITE_WEP104;
1621 priv->sec_info.authentication_mode =
1622 NL80211_AUTHTYPE_OPEN_SYSTEM;
1623 }
1624
1625 goto done;
1626 }
1627
1628 /* Now handle infra mode. "sme" is valid for infra mode only */
1629 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1630 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1631 priv->sec_info.is_authtype_auto = 1;
1632 } else {
1633 auth_type = sme->auth_type;
1634 }
1635
1636 if (sme->crypto.n_ciphers_pairwise) {
1637 priv->sec_info.encryption_mode =
1638 sme->crypto.ciphers_pairwise[0];
1639 priv->sec_info.authentication_mode = auth_type;
1640 }
1641
1642 if (sme->crypto.cipher_group) {
1643 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1644 priv->sec_info.authentication_mode = auth_type;
1645 }
1646 if (sme->ie)
1647 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1648
1649 if (sme->key) {
1650 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1651 dev_dbg(priv->adapter->dev,
1652 "info: setting wep encryption"
1653 " with key len %d\n", sme->key_len);
1654 priv->wep_key_curr_index = sme->key_idx;
1655 ret = mwifiex_set_encode(priv, NULL, sme->key,
1656 sme->key_len, sme->key_idx,
1657 NULL, 0);
1658 }
1659 }
1660 done:
1661 /*
1662 * Scan entries are valid for some time (15 sec). So we can save one
1663 * active scan time if we just try cfg80211_get_bss first. If it fails
1664 * then request scan and cfg80211_get_bss() again for final output.
1665 */
1666 while (1) {
1667 if (is_scanning_required) {
1668 /* Do specific SSID scanning */
1669 if (mwifiex_request_scan(priv, &req_ssid)) {
1670 dev_err(priv->adapter->dev, "scan error\n");
1671 return -EFAULT;
1672 }
1673 }
1674
1675 /* Find the BSS we want using available scan results */
1676 if (mode == NL80211_IFTYPE_ADHOC)
1677 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1678 bssid, ssid, ssid_len,
1679 WLAN_CAPABILITY_IBSS,
1680 WLAN_CAPABILITY_IBSS);
1681 else
1682 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1683 bssid, ssid, ssid_len,
1684 WLAN_CAPABILITY_ESS,
1685 WLAN_CAPABILITY_ESS);
1686
1687 if (!bss) {
1688 if (is_scanning_required) {
1689 dev_warn(priv->adapter->dev,
1690 "assoc: requested bss not found in scan results\n");
1691 break;
1692 }
1693 is_scanning_required = 1;
1694 } else {
1695 dev_dbg(priv->adapter->dev,
1696 "info: trying to associate to '%s' bssid %pM\n",
1697 (char *) req_ssid.ssid, bss->bssid);
1698 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1699 break;
1700 }
1701 }
1702
1703 ret = mwifiex_bss_start(priv, bss, &req_ssid);
1704 if (ret)
1705 return ret;
1706
1707 if (mode == NL80211_IFTYPE_ADHOC) {
1708 /* Inform the BSS information to kernel, otherwise
1709 * kernel will give a panic after successful assoc */
1710 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1711 return -EFAULT;
1712 }
1713
1714 return ret;
1715 }
1716
1717 /*
1718 * CFG802.11 operation handler for association request.
1719 *
1720 * This function does not work when the current mode is set to Ad-Hoc, or
1721 * when there is already an association procedure going on. The given BSS
1722 * information is used to associate.
1723 */
1724 static int
1725 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1726 struct cfg80211_connect_params *sme)
1727 {
1728 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1729 int ret;
1730
1731 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1732 wiphy_err(wiphy,
1733 "%s: reject infra assoc request in non-STA role\n",
1734 dev->name);
1735 return -EINVAL;
1736 }
1737
1738 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1739 (char *) sme->ssid, sme->bssid);
1740
1741 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1742 priv->bss_mode, sme->channel, sme, 0);
1743 if (!ret) {
1744 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1745 NULL, 0, WLAN_STATUS_SUCCESS,
1746 GFP_KERNEL);
1747 dev_dbg(priv->adapter->dev,
1748 "info: associated to bssid %pM successfully\n",
1749 priv->cfg_bssid);
1750 } else {
1751 dev_dbg(priv->adapter->dev,
1752 "info: association to bssid %pM failed\n",
1753 priv->cfg_bssid);
1754 memset(priv->cfg_bssid, 0, ETH_ALEN);
1755
1756 if (ret > 0)
1757 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1758 NULL, 0, NULL, 0, ret,
1759 GFP_KERNEL);
1760 else
1761 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1762 NULL, 0, NULL, 0,
1763 WLAN_STATUS_UNSPECIFIED_FAILURE,
1764 GFP_KERNEL);
1765 }
1766
1767 return 0;
1768 }
1769
1770 /*
1771 * This function sets following parameters for ibss network.
1772 * - channel
1773 * - start band
1774 * - 11n flag
1775 * - secondary channel offset
1776 */
1777 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1778 struct cfg80211_ibss_params *params)
1779 {
1780 struct wiphy *wiphy = priv->wdev->wiphy;
1781 struct mwifiex_adapter *adapter = priv->adapter;
1782 int index = 0, i;
1783 u8 config_bands = 0;
1784
1785 if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1786 if (!params->basic_rates) {
1787 config_bands = BAND_B | BAND_G;
1788 } else {
1789 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1790 /*
1791 * Rates below 6 Mbps in the table are CCK
1792 * rates; 802.11b and from 6 they are OFDM;
1793 * 802.11G
1794 */
1795 if (mwifiex_rates[i].bitrate == 60) {
1796 index = 1 << i;
1797 break;
1798 }
1799 }
1800
1801 if (params->basic_rates < index) {
1802 config_bands = BAND_B;
1803 } else {
1804 config_bands = BAND_G;
1805 if (params->basic_rates % index)
1806 config_bands |= BAND_B;
1807 }
1808 }
1809
1810 if (cfg80211_get_chandef_type(&params->chandef) !=
1811 NL80211_CHAN_NO_HT)
1812 config_bands |= BAND_G | BAND_GN;
1813 } else {
1814 if (cfg80211_get_chandef_type(&params->chandef) ==
1815 NL80211_CHAN_NO_HT)
1816 config_bands = BAND_A;
1817 else
1818 config_bands = BAND_AN | BAND_A;
1819 }
1820
1821 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1822 adapter->config_bands = config_bands;
1823 adapter->adhoc_start_band = config_bands;
1824
1825 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1826 adapter->adhoc_11n_enabled = true;
1827 else
1828 adapter->adhoc_11n_enabled = false;
1829 }
1830
1831 adapter->sec_chan_offset =
1832 mwifiex_chan_type_to_sec_chan_offset(
1833 cfg80211_get_chandef_type(&params->chandef));
1834 priv->adhoc_channel = ieee80211_frequency_to_channel(
1835 params->chandef.chan->center_freq);
1836
1837 wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1838 config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1839
1840 return 0;
1841 }
1842
1843 /*
1844 * CFG802.11 operation handler to join an IBSS.
1845 *
1846 * This function does not work in any mode other than Ad-Hoc, or if
1847 * a join operation is already in progress.
1848 */
1849 static int
1850 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1851 struct cfg80211_ibss_params *params)
1852 {
1853 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1854 int ret = 0;
1855
1856 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1857 wiphy_err(wiphy, "request to join ibss received "
1858 "when station is not in ibss mode\n");
1859 goto done;
1860 }
1861
1862 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1863 (char *) params->ssid, params->bssid);
1864
1865 mwifiex_set_ibss_params(priv, params);
1866
1867 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1868 params->bssid, priv->bss_mode,
1869 params->chandef.chan, NULL,
1870 params->privacy);
1871 done:
1872 if (!ret) {
1873 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1874 dev_dbg(priv->adapter->dev,
1875 "info: joined/created adhoc network with bssid"
1876 " %pM successfully\n", priv->cfg_bssid);
1877 } else {
1878 dev_dbg(priv->adapter->dev,
1879 "info: failed creating/joining adhoc network\n");
1880 }
1881
1882 return ret;
1883 }
1884
1885 /*
1886 * CFG802.11 operation handler to leave an IBSS.
1887 *
1888 * This function does not work if a leave operation is
1889 * already in progress.
1890 */
1891 static int
1892 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1893 {
1894 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1895
1896 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1897 priv->cfg_bssid);
1898 if (mwifiex_deauthenticate(priv, NULL))
1899 return -EFAULT;
1900
1901 memset(priv->cfg_bssid, 0, ETH_ALEN);
1902
1903 return 0;
1904 }
1905
1906 /*
1907 * CFG802.11 operation handler for scan request.
1908 *
1909 * This function issues a scan request to the firmware based upon
1910 * the user specified scan configuration. On successfull completion,
1911 * it also informs the results.
1912 */
1913 static int
1914 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1915 struct cfg80211_scan_request *request)
1916 {
1917 struct net_device *dev = request->wdev->netdev;
1918 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1919 int i, offset, ret;
1920 struct ieee80211_channel *chan;
1921 struct ieee_types_header *ie;
1922 struct mwifiex_user_scan_cfg *user_scan_cfg;
1923
1924 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1925
1926 if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1927 atomic_read(&priv->wmm.tx_pkts_queued) >=
1928 MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1929 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1930 return -EBUSY;
1931 }
1932
1933 /* Block scan request if scan operation or scan cleanup when interface
1934 * is disabled is in process
1935 */
1936 if (priv->scan_request || priv->scan_aborting) {
1937 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1938 return -EBUSY;
1939 }
1940
1941 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1942 if (!user_scan_cfg)
1943 return -ENOMEM;
1944
1945 priv->scan_request = request;
1946
1947 user_scan_cfg->num_ssids = request->n_ssids;
1948 user_scan_cfg->ssid_list = request->ssids;
1949
1950 if (request->ie && request->ie_len) {
1951 offset = 0;
1952 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1953 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1954 continue;
1955 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1956 ie = (struct ieee_types_header *)(request->ie + offset);
1957 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1958 offset += sizeof(*ie) + ie->len;
1959
1960 if (offset >= request->ie_len)
1961 break;
1962 }
1963 }
1964
1965 for (i = 0; i < min_t(u32, request->n_channels,
1966 MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
1967 chan = request->channels[i];
1968 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1969 user_scan_cfg->chan_list[i].radio_type = chan->band;
1970
1971 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1972 user_scan_cfg->chan_list[i].scan_type =
1973 MWIFIEX_SCAN_TYPE_PASSIVE;
1974 else
1975 user_scan_cfg->chan_list[i].scan_type =
1976 MWIFIEX_SCAN_TYPE_ACTIVE;
1977
1978 user_scan_cfg->chan_list[i].scan_time = 0;
1979 }
1980
1981 ret = mwifiex_scan_networks(priv, user_scan_cfg);
1982 kfree(user_scan_cfg);
1983 if (ret) {
1984 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1985 priv->scan_aborting = false;
1986 priv->scan_request = NULL;
1987 return ret;
1988 }
1989
1990 if (request->ie && request->ie_len) {
1991 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1992 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1993 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1994 memset(&priv->vs_ie[i].ie, 0,
1995 MWIFIEX_MAX_VSIE_LEN);
1996 }
1997 }
1998 }
1999 return 0;
2000 }
2001
2002 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2003 struct mwifiex_private *priv)
2004 {
2005 struct mwifiex_adapter *adapter = priv->adapter;
2006
2007 vht_info->vht_supported = true;
2008
2009 vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2010 /* Update MCS support for VHT */
2011 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2012 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2013 vht_info->vht_mcs.rx_highest = 0;
2014 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2015 adapter->hw_dot_11ac_mcs_support >> 16);
2016 vht_info->vht_mcs.tx_highest = 0;
2017 }
2018
2019 /*
2020 * This function sets up the CFG802.11 specific HT capability fields
2021 * with default values.
2022 *
2023 * The following default values are set -
2024 * - HT Supported = True
2025 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2026 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2027 * - HT Capabilities supported by firmware
2028 * - MCS information, Rx mask = 0xff
2029 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2030 */
2031 static void
2032 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2033 struct mwifiex_private *priv)
2034 {
2035 int rx_mcs_supp;
2036 struct ieee80211_mcs_info mcs_set;
2037 u8 *mcs = (u8 *)&mcs_set;
2038 struct mwifiex_adapter *adapter = priv->adapter;
2039
2040 ht_info->ht_supported = true;
2041 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2042 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2043
2044 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2045
2046 /* Fill HT capability information */
2047 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2048 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2049 else
2050 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2051
2052 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2053 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2054 else
2055 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2056
2057 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2058 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2059 else
2060 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2061
2062 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
2063 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2064 else
2065 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
2066
2067 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2068 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2069 else
2070 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2071
2072 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2073 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2074 else
2075 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2076
2077 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2078 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2079 else
2080 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2081
2082 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2083 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2084 else
2085 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2086
2087 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2088 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2089
2090 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2091 /* Set MCS for 1x1 */
2092 memset(mcs, 0xff, rx_mcs_supp);
2093 /* Clear all the other values */
2094 memset(&mcs[rx_mcs_supp], 0,
2095 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2096 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2097 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2098 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2099 SETHT_MCS32(mcs_set.rx_mask);
2100
2101 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2102
2103 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2104 }
2105
2106 /*
2107 * create a new virtual interface with the given name
2108 */
2109 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2110 const char *name,
2111 enum nl80211_iftype type,
2112 u32 *flags,
2113 struct vif_params *params)
2114 {
2115 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2116 struct mwifiex_private *priv;
2117 struct net_device *dev;
2118 void *mdev_priv;
2119 struct wireless_dev *wdev;
2120
2121 if (!adapter)
2122 return ERR_PTR(-EFAULT);
2123
2124 switch (type) {
2125 case NL80211_IFTYPE_UNSPECIFIED:
2126 case NL80211_IFTYPE_STATION:
2127 case NL80211_IFTYPE_ADHOC:
2128 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2129 if (priv->bss_mode) {
2130 wiphy_err(wiphy,
2131 "cannot create multiple sta/adhoc ifaces\n");
2132 return ERR_PTR(-EINVAL);
2133 }
2134
2135 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2136 if (!wdev)
2137 return ERR_PTR(-ENOMEM);
2138
2139 wdev->wiphy = wiphy;
2140 priv->wdev = wdev;
2141 wdev->iftype = NL80211_IFTYPE_STATION;
2142
2143 if (type == NL80211_IFTYPE_UNSPECIFIED)
2144 priv->bss_mode = NL80211_IFTYPE_STATION;
2145 else
2146 priv->bss_mode = type;
2147
2148 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2149 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2150 priv->bss_priority = 0;
2151 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2152 priv->bss_num = 0;
2153
2154 break;
2155 case NL80211_IFTYPE_AP:
2156 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2157
2158 if (priv->bss_mode) {
2159 wiphy_err(wiphy, "Can't create multiple AP interfaces");
2160 return ERR_PTR(-EINVAL);
2161 }
2162
2163 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2164 if (!wdev)
2165 return ERR_PTR(-ENOMEM);
2166
2167 priv->wdev = wdev;
2168 wdev->wiphy = wiphy;
2169 wdev->iftype = NL80211_IFTYPE_AP;
2170
2171 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2172 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2173 priv->bss_priority = 0;
2174 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2175 priv->bss_started = 0;
2176 priv->bss_num = 0;
2177 priv->bss_mode = type;
2178
2179 break;
2180 case NL80211_IFTYPE_P2P_CLIENT:
2181 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2182
2183 if (priv->bss_mode) {
2184 wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2185 return ERR_PTR(-EINVAL);
2186 }
2187
2188 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2189 if (!wdev)
2190 return ERR_PTR(-ENOMEM);
2191
2192 priv->wdev = wdev;
2193 wdev->wiphy = wiphy;
2194
2195 /* At start-up, wpa_supplicant tries to change the interface
2196 * to NL80211_IFTYPE_STATION if it is not managed mode.
2197 */
2198 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2199 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2200
2201 /* Setting bss_type to P2P tells firmware that this interface
2202 * is receiving P2P peers found during find phase and doing
2203 * action frame handshake.
2204 */
2205 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2206
2207 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2208 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2209 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2210 priv->bss_started = 0;
2211 priv->bss_num = 0;
2212
2213 if (mwifiex_cfg80211_init_p2p_client(priv))
2214 return ERR_PTR(-EFAULT);
2215
2216 break;
2217 default:
2218 wiphy_err(wiphy, "type not supported\n");
2219 return ERR_PTR(-EINVAL);
2220 }
2221
2222 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2223 ether_setup, IEEE80211_NUM_ACS, 1);
2224 if (!dev) {
2225 wiphy_err(wiphy, "no memory available for netdevice\n");
2226 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2227 return ERR_PTR(-ENOMEM);
2228 }
2229
2230 mwifiex_init_priv_params(priv, dev);
2231 priv->netdev = dev;
2232
2233 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2234 if (adapter->is_hw_11ac_capable)
2235 mwifiex_setup_vht_caps(
2236 &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2237
2238 if (adapter->config_bands & BAND_A)
2239 mwifiex_setup_ht_caps(
2240 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2241
2242 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2243 mwifiex_setup_vht_caps(
2244 &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2245
2246 dev_net_set(dev, wiphy_net(wiphy));
2247 dev->ieee80211_ptr = priv->wdev;
2248 dev->ieee80211_ptr->iftype = priv->bss_mode;
2249 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2250 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2251
2252 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2253 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2254 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2255 dev->ethtool_ops = &mwifiex_ethtool_ops;
2256
2257 mdev_priv = netdev_priv(dev);
2258 *((unsigned long *) mdev_priv) = (unsigned long) priv;
2259
2260 SET_NETDEV_DEV(dev, adapter->dev);
2261
2262 /* Register network device */
2263 if (register_netdevice(dev)) {
2264 wiphy_err(wiphy, "cannot register virtual network device\n");
2265 free_netdev(dev);
2266 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2267 return ERR_PTR(-EFAULT);
2268 }
2269
2270 sema_init(&priv->async_sem, 1);
2271
2272 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2273
2274 #ifdef CONFIG_DEBUG_FS
2275 mwifiex_dev_debugfs_init(priv);
2276 #endif
2277 return wdev;
2278 }
2279 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2280
2281 /*
2282 * del_virtual_intf: remove the virtual interface determined by dev
2283 */
2284 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2285 {
2286 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2287
2288 #ifdef CONFIG_DEBUG_FS
2289 mwifiex_dev_debugfs_remove(priv);
2290 #endif
2291
2292 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2293
2294 if (netif_carrier_ok(priv->netdev))
2295 netif_carrier_off(priv->netdev);
2296
2297 if (wdev->netdev->reg_state == NETREG_REGISTERED)
2298 unregister_netdevice(wdev->netdev);
2299
2300 /* Clear the priv in adapter */
2301 priv->netdev = NULL;
2302
2303 priv->media_connected = false;
2304
2305 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2306
2307 return 0;
2308 }
2309 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2310
2311 static bool
2312 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2313 u8 max_byte_seq)
2314 {
2315 int j, k, valid_byte_cnt = 0;
2316 bool dont_care_byte = false;
2317
2318 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2319 for (k = 0; k < 8; k++) {
2320 if (pat->mask[j] & 1 << k) {
2321 memcpy(byte_seq + valid_byte_cnt,
2322 &pat->pattern[j * 8 + k], 1);
2323 valid_byte_cnt++;
2324 if (dont_care_byte)
2325 return false;
2326 } else {
2327 if (valid_byte_cnt)
2328 dont_care_byte = true;
2329 }
2330
2331 if (valid_byte_cnt > max_byte_seq)
2332 return false;
2333 }
2334 }
2335
2336 byte_seq[max_byte_seq] = valid_byte_cnt;
2337
2338 return true;
2339 }
2340
2341 #ifdef CONFIG_PM
2342 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2343 struct cfg80211_wowlan *wowlan)
2344 {
2345 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2346 struct mwifiex_ds_mef_cfg mef_cfg;
2347 struct mwifiex_mef_entry *mef_entry;
2348 int i, filt_num = 0, ret;
2349 bool first_pat = true;
2350 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2351 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2352 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2353 struct mwifiex_private *priv =
2354 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2355
2356 if (!wowlan) {
2357 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2358 return 0;
2359 }
2360
2361 if (!priv->media_connected) {
2362 dev_warn(adapter->dev,
2363 "Can not configure WOWLAN in disconnected state\n");
2364 return 0;
2365 }
2366
2367 mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2368 if (!mef_entry)
2369 return -ENOMEM;
2370
2371 memset(&mef_cfg, 0, sizeof(mef_cfg));
2372 mef_cfg.num_entries = 1;
2373 mef_cfg.mef_entry = mef_entry;
2374 mef_entry->mode = MEF_MODE_HOST_SLEEP;
2375 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2376
2377 for (i = 0; i < wowlan->n_patterns; i++) {
2378 memset(byte_seq, 0, sizeof(byte_seq));
2379 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2380 byte_seq,
2381 MWIFIEX_MEF_MAX_BYTESEQ)) {
2382 wiphy_err(wiphy, "Pattern not supported\n");
2383 kfree(mef_entry);
2384 return -EOPNOTSUPP;
2385 }
2386
2387 if (!wowlan->patterns[i].pkt_offset) {
2388 if (!(byte_seq[0] & 0x01) &&
2389 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2390 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2391 continue;
2392 } else if (is_broadcast_ether_addr(byte_seq)) {
2393 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2394 continue;
2395 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2396 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2397 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2398 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2399 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2400 continue;
2401 }
2402 }
2403
2404 mef_entry->filter[filt_num].repeat = 1;
2405 mef_entry->filter[filt_num].offset =
2406 wowlan->patterns[i].pkt_offset;
2407 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2408 sizeof(byte_seq));
2409 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2410
2411 if (first_pat)
2412 first_pat = false;
2413 else
2414 mef_entry->filter[filt_num].filt_action = TYPE_AND;
2415
2416 filt_num++;
2417 }
2418
2419 if (wowlan->magic_pkt) {
2420 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2421 mef_entry->filter[filt_num].repeat = 16;
2422 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2423 ETH_ALEN);
2424 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2425 ETH_ALEN;
2426 mef_entry->filter[filt_num].offset = 14;
2427 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2428 if (filt_num)
2429 mef_entry->filter[filt_num].filt_action = TYPE_OR;
2430 }
2431
2432 if (!mef_cfg.criteria)
2433 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2434 MWIFIEX_CRITERIA_UNICAST |
2435 MWIFIEX_CRITERIA_MULTICAST;
2436
2437 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
2438 HostCmd_ACT_GEN_SET, 0,
2439 &mef_cfg);
2440
2441 kfree(mef_entry);
2442 return ret;
2443 }
2444
2445 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2446 {
2447 return 0;
2448 }
2449
2450 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2451 bool enabled)
2452 {
2453 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2454
2455 device_set_wakeup_enable(adapter->dev, enabled);
2456 }
2457 #endif
2458
2459 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2460 {
2461 const u8 ipv4_mc_mac[] = {0x33, 0x33};
2462 const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2463 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2464
2465 if ((byte_seq[0] & 0x01) &&
2466 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2467 return PACKET_TYPE_UNICAST;
2468 else if (!memcmp(byte_seq, bc_mac, 4))
2469 return PACKET_TYPE_BROADCAST;
2470 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2471 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2472 (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2473 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2474 return PACKET_TYPE_MULTICAST;
2475
2476 return 0;
2477 }
2478
2479 static int
2480 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2481 struct cfg80211_coalesce_rules *crule,
2482 struct mwifiex_coalesce_rule *mrule)
2483 {
2484 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2485 struct filt_field_param *param;
2486 int i;
2487
2488 mrule->max_coalescing_delay = crule->delay;
2489
2490 param = mrule->params;
2491
2492 for (i = 0; i < crule->n_patterns; i++) {
2493 memset(byte_seq, 0, sizeof(byte_seq));
2494 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2495 byte_seq,
2496 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2497 dev_err(priv->adapter->dev, "Pattern not supported\n");
2498 return -EOPNOTSUPP;
2499 }
2500
2501 if (!crule->patterns[i].pkt_offset) {
2502 u8 pkt_type;
2503
2504 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2505 if (pkt_type && mrule->pkt_type) {
2506 dev_err(priv->adapter->dev,
2507 "Multiple packet types not allowed\n");
2508 return -EOPNOTSUPP;
2509 } else if (pkt_type) {
2510 mrule->pkt_type = pkt_type;
2511 continue;
2512 }
2513 }
2514
2515 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2516 param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2517 else
2518 param->operation = RECV_FILTER_MATCH_TYPE_NE;
2519
2520 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2521 memcpy(param->operand_byte_stream, byte_seq,
2522 param->operand_len);
2523 param->offset = crule->patterns[i].pkt_offset;
2524 param++;
2525
2526 mrule->num_of_fields++;
2527 }
2528
2529 if (!mrule->pkt_type) {
2530 dev_err(priv->adapter->dev,
2531 "Packet type can not be determined\n");
2532 return -EOPNOTSUPP;
2533 }
2534
2535 return 0;
2536 }
2537
2538 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2539 struct cfg80211_coalesce *coalesce)
2540 {
2541 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2542 int i, ret;
2543 struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2544 struct mwifiex_private *priv =
2545 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2546
2547 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2548 if (!coalesce) {
2549 dev_dbg(adapter->dev,
2550 "Disable coalesce and reset all previous rules\n");
2551 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2552 HostCmd_ACT_GEN_SET, 0,
2553 &coalesce_cfg);
2554 }
2555
2556 coalesce_cfg.num_of_rules = coalesce->n_rules;
2557 for (i = 0; i < coalesce->n_rules; i++) {
2558 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2559 &coalesce_cfg.rule[i]);
2560 if (ret) {
2561 dev_err(priv->adapter->dev,
2562 "Recheck the patterns provided for rule %d\n",
2563 i + 1);
2564 return ret;
2565 }
2566 }
2567
2568 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2569 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg);
2570 }
2571
2572 /* station cfg80211 operations */
2573 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2574 .add_virtual_intf = mwifiex_add_virtual_intf,
2575 .del_virtual_intf = mwifiex_del_virtual_intf,
2576 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2577 .scan = mwifiex_cfg80211_scan,
2578 .connect = mwifiex_cfg80211_connect,
2579 .disconnect = mwifiex_cfg80211_disconnect,
2580 .get_station = mwifiex_cfg80211_get_station,
2581 .dump_station = mwifiex_cfg80211_dump_station,
2582 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2583 .join_ibss = mwifiex_cfg80211_join_ibss,
2584 .leave_ibss = mwifiex_cfg80211_leave_ibss,
2585 .add_key = mwifiex_cfg80211_add_key,
2586 .del_key = mwifiex_cfg80211_del_key,
2587 .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2588 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2589 .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2590 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2591 .set_default_key = mwifiex_cfg80211_set_default_key,
2592 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2593 .set_tx_power = mwifiex_cfg80211_set_tx_power,
2594 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2595 .start_ap = mwifiex_cfg80211_start_ap,
2596 .stop_ap = mwifiex_cfg80211_stop_ap,
2597 .change_beacon = mwifiex_cfg80211_change_beacon,
2598 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2599 .set_antenna = mwifiex_cfg80211_set_antenna,
2600 .del_station = mwifiex_cfg80211_del_station,
2601 #ifdef CONFIG_PM
2602 .suspend = mwifiex_cfg80211_suspend,
2603 .resume = mwifiex_cfg80211_resume,
2604 .set_wakeup = mwifiex_cfg80211_set_wakeup,
2605 #endif
2606 .set_coalesce = mwifiex_cfg80211_set_coalesce,
2607 };
2608
2609 #ifdef CONFIG_PM
2610 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2611 .flags = WIPHY_WOWLAN_MAGIC_PKT,
2612 .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2613 .pattern_min_len = 1,
2614 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2615 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2616 };
2617 #endif
2618
2619 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2620 {
2621 if (!alpha2 || strlen(alpha2) != 2)
2622 return false;
2623
2624 if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2625 return true;
2626
2627 return false;
2628 }
2629
2630 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2631 .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2632 .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2633 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2634 .pattern_min_len = 1,
2635 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2636 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2637 };
2638
2639 /*
2640 * This function registers the device with CFG802.11 subsystem.
2641 *
2642 * The function creates the wireless device/wiphy, populates it with
2643 * default parameters and handler function pointers, and finally
2644 * registers the device.
2645 */
2646
2647 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2648 {
2649 int ret;
2650 void *wdev_priv;
2651 struct wiphy *wiphy;
2652 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2653 u8 *country_code;
2654
2655 /* create a new wiphy for use with cfg80211 */
2656 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2657 sizeof(struct mwifiex_adapter *));
2658 if (!wiphy) {
2659 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2660 return -ENOMEM;
2661 }
2662 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2663 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2664 wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2665 wiphy->max_remain_on_channel_duration = 5000;
2666 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2667 BIT(NL80211_IFTYPE_ADHOC) |
2668 BIT(NL80211_IFTYPE_P2P_CLIENT) |
2669 BIT(NL80211_IFTYPE_P2P_GO) |
2670 BIT(NL80211_IFTYPE_AP);
2671
2672 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2673 if (adapter->config_bands & BAND_A)
2674 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2675 else
2676 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2677
2678 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2679 wiphy->n_iface_combinations = 1;
2680
2681 /* Initialize cipher suits */
2682 wiphy->cipher_suites = mwifiex_cipher_suites;
2683 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2684
2685 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2686 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2687 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2688 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2689 WIPHY_FLAG_AP_UAPSD |
2690 WIPHY_FLAG_CUSTOM_REGULATORY |
2691 WIPHY_FLAG_STRICT_REGULATORY |
2692 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2693
2694 wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2695
2696 #ifdef CONFIG_PM
2697 wiphy->wowlan = &mwifiex_wowlan_support;
2698 #endif
2699
2700 wiphy->coalesce = &mwifiex_coalesce_support;
2701
2702 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2703 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2704 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2705
2706 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2707 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2708
2709 wiphy->features |= NL80211_FEATURE_HT_IBSS |
2710 NL80211_FEATURE_INACTIVITY_TIMER |
2711 NL80211_FEATURE_LOW_PRIORITY_SCAN;
2712
2713 /* Reserve space for mwifiex specific private data for BSS */
2714 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2715
2716 wiphy->reg_notifier = mwifiex_reg_notifier;
2717
2718 /* Set struct mwifiex_adapter pointer in wiphy_priv */
2719 wdev_priv = wiphy_priv(wiphy);
2720 *(unsigned long *)wdev_priv = (unsigned long)adapter;
2721
2722 set_wiphy_dev(wiphy, priv->adapter->dev);
2723
2724 ret = wiphy_register(wiphy);
2725 if (ret < 0) {
2726 dev_err(adapter->dev,
2727 "%s: wiphy_register failed: %d\n", __func__, ret);
2728 wiphy_free(wiphy);
2729 return ret;
2730 }
2731
2732 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2733 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2734 regulatory_hint(wiphy, reg_alpha2);
2735 } else {
2736 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2737 if (country_code)
2738 wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2739 country_code);
2740 }
2741
2742 adapter->wiphy = wiphy;
2743 return ret;
2744 }
Linux kernel - Deliverables
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