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mwifiex: add AP command sys_config and set channel
[linux-2.6/btrfs-unstable.git] / drivers / net / wireless / mwifiex / cfg80211.c
blobf3465fc89b40fb509c95852c8694d02508ad37ea
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 const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
24 {
25 .max = 1, .types = BIT(NL80211_IFTYPE_STATION),
26 },
27 {
28 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
29 },
30 };
31
32 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
33 .limits = mwifiex_ap_sta_limits,
34 .num_different_channels = 1,
35 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
36 .max_interfaces = MWIFIEX_MAX_BSS_NUM,
37 .beacon_int_infra_match = true,
38 };
39
40 /*
41 * This function maps the nl802.11 channel type into driver channel type.
42 *
43 * The mapping is as follows -
44 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE
45 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
46 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
47 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
48 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
49 */
50 static u8
51 mwifiex_cfg80211_channel_type_to_sec_chan_offset(enum nl80211_channel_type
52 channel_type)
53 {
54 switch (channel_type) {
55 case NL80211_CHAN_NO_HT:
56 case NL80211_CHAN_HT20:
57 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
58 case NL80211_CHAN_HT40PLUS:
59 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
60 case NL80211_CHAN_HT40MINUS:
61 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
62 default:
63 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
64 }
65 }
66
67 /*
68 * This function checks whether WEP is set.
69 */
70 static int
71 mwifiex_is_alg_wep(u32 cipher)
72 {
73 switch (cipher) {
74 case WLAN_CIPHER_SUITE_WEP40:
75 case WLAN_CIPHER_SUITE_WEP104:
76 return 1;
77 default:
78 break;
79 }
80
81 return 0;
82 }
83
84 /*
85 * This function retrieves the private structure from kernel wiphy structure.
86 */
87 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
88 {
89 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
90 }
91
92 /*
93 * CFG802.11 operation handler to delete a network key.
94 */
95 static int
96 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
97 u8 key_index, bool pairwise, const u8 *mac_addr)
98 {
99 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
100 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
101 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
102
103 if (mwifiex_set_encode(priv, NULL, 0, key_index, peer_mac, 1)) {
104 wiphy_err(wiphy, "deleting the crypto keys\n");
105 return -EFAULT;
106 }
107
108 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
109 return 0;
110 }
111
112 /*
113 * CFG802.11 operation handler to set Tx power.
114 */
115 static int
116 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
117 enum nl80211_tx_power_setting type,
118 int mbm)
119 {
120 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
121 struct mwifiex_private *priv;
122 struct mwifiex_power_cfg power_cfg;
123 int dbm = MBM_TO_DBM(mbm);
124
125 if (type == NL80211_TX_POWER_FIXED) {
126 power_cfg.is_power_auto = 0;
127 power_cfg.power_level = dbm;
128 } else {
129 power_cfg.is_power_auto = 1;
130 }
131
132 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
133
134 return mwifiex_set_tx_power(priv, &power_cfg);
135 }
136
137 /*
138 * CFG802.11 operation handler to set Power Save option.
139 *
140 * The timeout value, if provided, is currently ignored.
141 */
142 static int
143 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
144 struct net_device *dev,
145 bool enabled, int timeout)
146 {
147 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
148 u32 ps_mode;
149
150 if (timeout)
151 wiphy_dbg(wiphy,
152 "info: ignore timeout value for IEEE Power Save\n");
153
154 ps_mode = enabled;
155
156 return mwifiex_drv_set_power(priv, &ps_mode);
157 }
158
159 /*
160 * CFG802.11 operation handler to set the default network key.
161 */
162 static int
163 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
164 u8 key_index, bool unicast,
165 bool multicast)
166 {
167 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
168
169 /* Return if WEP key not configured */
170 if (!priv->sec_info.wep_enabled)
171 return 0;
172
173 if (mwifiex_set_encode(priv, NULL, 0, key_index, NULL, 0)) {
174 wiphy_err(wiphy, "set default Tx key index\n");
175 return -EFAULT;
176 }
177
178 return 0;
179 }
180
181 /*
182 * CFG802.11 operation handler to add a network key.
183 */
184 static int
185 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
186 u8 key_index, bool pairwise, const u8 *mac_addr,
187 struct key_params *params)
188 {
189 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
190 const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
191 const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
192
193 if (mwifiex_set_encode(priv, params->key, params->key_len,
194 key_index, peer_mac, 0)) {
195 wiphy_err(wiphy, "crypto keys added\n");
196 return -EFAULT;
197 }
198
199 return 0;
200 }
201
202 /*
203 * This function sends domain information to the firmware.
204 *
205 * The following information are passed to the firmware -
206 * - Country codes
207 * - Sub bands (first channel, number of channels, maximum Tx power)
208 */
209 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
210 {
211 u8 no_of_triplet = 0;
212 struct ieee80211_country_ie_triplet *t;
213 u8 no_of_parsed_chan = 0;
214 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
215 u8 i, flag = 0;
216 enum ieee80211_band band;
217 struct ieee80211_supported_band *sband;
218 struct ieee80211_channel *ch;
219 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
220 struct mwifiex_private *priv;
221 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
222
223 /* Set country code */
224 domain_info->country_code[0] = adapter->country_code[0];
225 domain_info->country_code[1] = adapter->country_code[1];
226 domain_info->country_code[2] = ' ';
227
228 band = mwifiex_band_to_radio_type(adapter->config_bands);
229 if (!wiphy->bands[band]) {
230 wiphy_err(wiphy, "11D: setting domain info in FW\n");
231 return -1;
232 }
233
234 sband = wiphy->bands[band];
235
236 for (i = 0; i < sband->n_channels ; i++) {
237 ch = &sband->channels[i];
238 if (ch->flags & IEEE80211_CHAN_DISABLED)
239 continue;
240
241 if (!flag) {
242 flag = 1;
243 first_chan = (u32) ch->hw_value;
244 next_chan = first_chan;
245 max_pwr = ch->max_power;
246 no_of_parsed_chan = 1;
247 continue;
248 }
249
250 if (ch->hw_value == next_chan + 1 &&
251 ch->max_power == max_pwr) {
252 next_chan++;
253 no_of_parsed_chan++;
254 } else {
255 t = &domain_info->triplet[no_of_triplet];
256 t->chans.first_channel = first_chan;
257 t->chans.num_channels = no_of_parsed_chan;
258 t->chans.max_power = max_pwr;
259 no_of_triplet++;
260 first_chan = (u32) ch->hw_value;
261 next_chan = first_chan;
262 max_pwr = ch->max_power;
263 no_of_parsed_chan = 1;
264 }
265 }
266
267 if (flag) {
268 t = &domain_info->triplet[no_of_triplet];
269 t->chans.first_channel = first_chan;
270 t->chans.num_channels = no_of_parsed_chan;
271 t->chans.max_power = max_pwr;
272 no_of_triplet++;
273 }
274
275 domain_info->no_of_triplet = no_of_triplet;
276
277 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
278
279 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
280 HostCmd_ACT_GEN_SET, 0, NULL)) {
281 wiphy_err(wiphy, "11D: setting domain info in FW\n");
282 return -1;
283 }
284
285 return 0;
286 }
287
288 /*
289 * CFG802.11 regulatory domain callback function.
290 *
291 * This function is called when the regulatory domain is changed due to the
292 * following reasons -
293 * - Set by driver
294 * - Set by system core
295 * - Set by user
296 * - Set bt Country IE
297 */
298 static int mwifiex_reg_notifier(struct wiphy *wiphy,
299 struct regulatory_request *request)
300 {
301 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
302
303 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
304 request->alpha2[0], request->alpha2[1]);
305
306 memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2));
307
308 switch (request->initiator) {
309 case NL80211_REGDOM_SET_BY_DRIVER:
310 case NL80211_REGDOM_SET_BY_CORE:
311 case NL80211_REGDOM_SET_BY_USER:
312 break;
313 /* Todo: apply driver specific changes in channel flags based
314 on the request initiator if necessary. */
315 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
316 break;
317 }
318 mwifiex_send_domain_info_cmd_fw(wiphy);
319
320 return 0;
321 }
322
323 /*
324 * This function sets the RF channel.
325 *
326 * This function creates multiple IOCTL requests, populates them accordingly
327 * and issues them to set the band/channel and frequency.
328 */
329 static int
330 mwifiex_set_rf_channel(struct mwifiex_private *priv,
331 struct ieee80211_channel *chan,
332 enum nl80211_channel_type channel_type)
333 {
334 struct mwifiex_chan_freq_power cfp;
335 u32 config_bands = 0;
336 struct wiphy *wiphy = priv->wdev->wiphy;
337 struct mwifiex_adapter *adapter = priv->adapter;
338
339 if (chan) {
340 /* Set appropriate bands */
341 if (chan->band == IEEE80211_BAND_2GHZ) {
342 if (channel_type == NL80211_CHAN_NO_HT)
343 if (priv->adapter->config_bands == BAND_B ||
344 priv->adapter->config_bands == BAND_G)
345 config_bands =
346 priv->adapter->config_bands;
347 else
348 config_bands = BAND_B | BAND_G;
349 else
350 config_bands = BAND_B | BAND_G | BAND_GN;
351 } else {
352 if (channel_type == NL80211_CHAN_NO_HT)
353 config_bands = BAND_A;
354 else
355 config_bands = BAND_AN | BAND_A;
356 }
357
358 if (!((config_bands | adapter->fw_bands) &
359 ~adapter->fw_bands)) {
360 adapter->config_bands = config_bands;
361 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
362 adapter->adhoc_start_band = config_bands;
363 if ((config_bands & BAND_GN) ||
364 (config_bands & BAND_AN))
365 adapter->adhoc_11n_enabled = true;
366 else
367 adapter->adhoc_11n_enabled = false;
368 }
369 }
370 adapter->sec_chan_offset =
371 mwifiex_cfg80211_channel_type_to_sec_chan_offset
372 (channel_type);
373 adapter->channel_type = channel_type;
374
375 mwifiex_send_domain_info_cmd_fw(wiphy);
376 }
377
378 wiphy_dbg(wiphy, "info: setting band %d, chan offset %d, mode %d\n",
379 config_bands, adapter->sec_chan_offset, priv->bss_mode);
380 if (!chan)
381 return 0;
382
383 memset(&cfp, 0, sizeof(cfp));
384 cfp.freq = chan->center_freq;
385 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
386
387 if (mwifiex_bss_set_channel(priv, &cfp))
388 return -EFAULT;
389
390 if (priv->bss_type == MWIFIEX_BSS_TYPE_STA)
391 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
392 else
393 return mwifiex_uap_set_channel(priv, cfp.channel);
394 }
395
396 /*
397 * CFG802.11 operation handler to set channel.
398 *
399 * This function can only be used when station is not connected.
400 */
401 static int
402 mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
403 struct ieee80211_channel *chan,
404 enum nl80211_channel_type channel_type)
405 {
406 struct mwifiex_private *priv;
407 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
408
409 if (dev)
410 priv = mwifiex_netdev_get_priv(dev);
411 else
412 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
413
414 if (priv->media_connected) {
415 wiphy_err(wiphy, "This is invalid in connected state\n");
416 return -EINVAL;
417 }
418
419 return mwifiex_set_rf_channel(priv, chan, channel_type);
420 }
421
422 /*
423 * This function sets the fragmentation threshold.
424 *
425 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
426 * and MWIFIEX_FRAG_MAX_VALUE.
427 */
428 static int
429 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
430 {
431 int ret;
432
433 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
434 frag_thr > MWIFIEX_FRAG_MAX_VALUE)
435 return -EINVAL;
436
437 /* Send request to firmware */
438 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
439 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
440 &frag_thr);
441
442 return ret;
443 }
444
445 /*
446 * This function sets the RTS threshold.
447
448 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
449 * and MWIFIEX_RTS_MAX_VALUE.
450 */
451 static int
452 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
453 {
454 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
455 rts_thr = MWIFIEX_RTS_MAX_VALUE;
456
457 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
458 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
459 &rts_thr);
460 }
461
462 /*
463 * CFG802.11 operation handler to set wiphy parameters.
464 *
465 * This function can be used to set the RTS threshold and the
466 * Fragmentation threshold of the driver.
467 */
468 static int
469 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
470 {
471 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
472 struct mwifiex_private *priv = mwifiex_get_priv(adapter,
473 MWIFIEX_BSS_ROLE_STA);
474 int ret = 0;
475
476 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
477 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
478 if (ret)
479 return ret;
480 }
481
482 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
483 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
484
485 return ret;
486 }
487
488 /*
489 * CFG802.11 operation handler to change interface type.
490 */
491 static int
492 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
493 struct net_device *dev,
494 enum nl80211_iftype type, u32 *flags,
495 struct vif_params *params)
496 {
497 int ret;
498 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
499
500 if (priv->bss_mode == type) {
501 wiphy_warn(wiphy, "already set to required type\n");
502 return 0;
503 }
504
505 priv->bss_mode = type;
506
507 switch (type) {
508 case NL80211_IFTYPE_ADHOC:
509 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
510 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
511 break;
512 case NL80211_IFTYPE_STATION:
513 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
514 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
515 break;
516 case NL80211_IFTYPE_UNSPECIFIED:
517 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
518 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
519 return 0;
520 default:
521 wiphy_err(wiphy, "unknown interface type: %d\n", type);
522 return -EINVAL;
523 }
524
525 mwifiex_deauthenticate(priv, NULL);
526
527 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
528
529 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
530 HostCmd_ACT_GEN_SET, 0, NULL);
531
532 return ret;
533 }
534
535 /*
536 * This function dumps the station information on a buffer.
537 *
538 * The following information are shown -
539 * - Total bytes transmitted
540 * - Total bytes received
541 * - Total packets transmitted
542 * - Total packets received
543 * - Signal quality level
544 * - Transmission rate
545 */
546 static int
547 mwifiex_dump_station_info(struct mwifiex_private *priv,
548 struct station_info *sinfo)
549 {
550 struct mwifiex_rate_cfg rate;
551
552 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
553 STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
554 STATION_INFO_TX_BITRATE |
555 STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
556
557 /* Get signal information from the firmware */
558 if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
559 HostCmd_ACT_GEN_GET, 0, NULL)) {
560 dev_err(priv->adapter->dev, "failed to get signal information\n");
561 return -EFAULT;
562 }
563
564 if (mwifiex_drv_get_data_rate(priv, &rate)) {
565 dev_err(priv->adapter->dev, "getting data rate\n");
566 return -EFAULT;
567 }
568
569 /* Get DTIM period information from firmware */
570 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
571 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
572 &priv->dtim_period);
573
574 /*
575 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
576 * MCS index values for us are 0 to 7.
577 */
578 if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 8)) {
579 sinfo->txrate.mcs = priv->tx_rate;
580 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
581 /* 40MHz rate */
582 if (priv->tx_htinfo & BIT(1))
583 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
584 /* SGI enabled */
585 if (priv->tx_htinfo & BIT(2))
586 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
587 }
588
589 sinfo->signal_avg = priv->bcn_rssi_avg;
590 sinfo->rx_bytes = priv->stats.rx_bytes;
591 sinfo->tx_bytes = priv->stats.tx_bytes;
592 sinfo->rx_packets = priv->stats.rx_packets;
593 sinfo->tx_packets = priv->stats.tx_packets;
594 sinfo->signal = priv->bcn_rssi_avg;
595 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
596 sinfo->txrate.legacy = rate.rate * 5;
597
598 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
599 sinfo->filled |= STATION_INFO_BSS_PARAM;
600 sinfo->bss_param.flags = 0;
601 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
602 WLAN_CAPABILITY_SHORT_PREAMBLE)
603 sinfo->bss_param.flags |=
604 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
605 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
606 WLAN_CAPABILITY_SHORT_SLOT_TIME)
607 sinfo->bss_param.flags |=
608 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
609 sinfo->bss_param.dtim_period = priv->dtim_period;
610 sinfo->bss_param.beacon_interval =
611 priv->curr_bss_params.bss_descriptor.beacon_period;
612 }
613
614 return 0;
615 }
616
617 /*
618 * CFG802.11 operation handler to get station information.
619 *
620 * This function only works in connected mode, and dumps the
621 * requested station information, if available.
622 */
623 static int
624 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
625 u8 *mac, struct station_info *sinfo)
626 {
627 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
628
629 if (!priv->media_connected)
630 return -ENOENT;
631 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
632 return -ENOENT;
633
634 return mwifiex_dump_station_info(priv, sinfo);
635 }
636
637 /*
638 * CFG802.11 operation handler to dump station information.
639 */
640 static int
641 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
642 int idx, u8 *mac, struct station_info *sinfo)
643 {
644 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
645
646 if (!priv->media_connected || idx)
647 return -ENOENT;
648
649 memcpy(mac, priv->cfg_bssid, ETH_ALEN);
650
651 return mwifiex_dump_station_info(priv, sinfo);
652 }
653
654 /* Supported rates to be advertised to the cfg80211 */
655
656 static struct ieee80211_rate mwifiex_rates[] = {
657 {.bitrate = 10, .hw_value = 2, },
658 {.bitrate = 20, .hw_value = 4, },
659 {.bitrate = 55, .hw_value = 11, },
660 {.bitrate = 110, .hw_value = 22, },
661 {.bitrate = 60, .hw_value = 12, },
662 {.bitrate = 90, .hw_value = 18, },
663 {.bitrate = 120, .hw_value = 24, },
664 {.bitrate = 180, .hw_value = 36, },
665 {.bitrate = 240, .hw_value = 48, },
666 {.bitrate = 360, .hw_value = 72, },
667 {.bitrate = 480, .hw_value = 96, },
668 {.bitrate = 540, .hw_value = 108, },
669 };
670
671 /* Channel definitions to be advertised to cfg80211 */
672
673 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
674 {.center_freq = 2412, .hw_value = 1, },
675 {.center_freq = 2417, .hw_value = 2, },
676 {.center_freq = 2422, .hw_value = 3, },
677 {.center_freq = 2427, .hw_value = 4, },
678 {.center_freq = 2432, .hw_value = 5, },
679 {.center_freq = 2437, .hw_value = 6, },
680 {.center_freq = 2442, .hw_value = 7, },
681 {.center_freq = 2447, .hw_value = 8, },
682 {.center_freq = 2452, .hw_value = 9, },
683 {.center_freq = 2457, .hw_value = 10, },
684 {.center_freq = 2462, .hw_value = 11, },
685 {.center_freq = 2467, .hw_value = 12, },
686 {.center_freq = 2472, .hw_value = 13, },
687 {.center_freq = 2484, .hw_value = 14, },
688 };
689
690 static struct ieee80211_supported_band mwifiex_band_2ghz = {
691 .channels = mwifiex_channels_2ghz,
692 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
693 .bitrates = mwifiex_rates,
694 .n_bitrates = ARRAY_SIZE(mwifiex_rates),
695 };
696
697 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
698 {.center_freq = 5040, .hw_value = 8, },
699 {.center_freq = 5060, .hw_value = 12, },
700 {.center_freq = 5080, .hw_value = 16, },
701 {.center_freq = 5170, .hw_value = 34, },
702 {.center_freq = 5190, .hw_value = 38, },
703 {.center_freq = 5210, .hw_value = 42, },
704 {.center_freq = 5230, .hw_value = 46, },
705 {.center_freq = 5180, .hw_value = 36, },
706 {.center_freq = 5200, .hw_value = 40, },
707 {.center_freq = 5220, .hw_value = 44, },
708 {.center_freq = 5240, .hw_value = 48, },
709 {.center_freq = 5260, .hw_value = 52, },
710 {.center_freq = 5280, .hw_value = 56, },
711 {.center_freq = 5300, .hw_value = 60, },
712 {.center_freq = 5320, .hw_value = 64, },
713 {.center_freq = 5500, .hw_value = 100, },
714 {.center_freq = 5520, .hw_value = 104, },
715 {.center_freq = 5540, .hw_value = 108, },
716 {.center_freq = 5560, .hw_value = 112, },
717 {.center_freq = 5580, .hw_value = 116, },
718 {.center_freq = 5600, .hw_value = 120, },
719 {.center_freq = 5620, .hw_value = 124, },
720 {.center_freq = 5640, .hw_value = 128, },
721 {.center_freq = 5660, .hw_value = 132, },
722 {.center_freq = 5680, .hw_value = 136, },
723 {.center_freq = 5700, .hw_value = 140, },
724 {.center_freq = 5745, .hw_value = 149, },
725 {.center_freq = 5765, .hw_value = 153, },
726 {.center_freq = 5785, .hw_value = 157, },
727 {.center_freq = 5805, .hw_value = 161, },
728 {.center_freq = 5825, .hw_value = 165, },
729 };
730
731 static struct ieee80211_supported_band mwifiex_band_5ghz = {
732 .channels = mwifiex_channels_5ghz,
733 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
734 .bitrates = mwifiex_rates + 4,
735 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
736 };
737
738
739 /* Supported crypto cipher suits to be advertised to cfg80211 */
740
741 static const u32 mwifiex_cipher_suites[] = {
742 WLAN_CIPHER_SUITE_WEP40,
743 WLAN_CIPHER_SUITE_WEP104,
744 WLAN_CIPHER_SUITE_TKIP,
745 WLAN_CIPHER_SUITE_CCMP,
746 };
747
748 /*
749 * CFG802.11 operation handler for setting bit rates.
750 *
751 * Function selects legacy bang B/G/BG from corresponding bitrates selection.
752 * Currently only 2.4GHz band is supported.
753 */
754 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
755 struct net_device *dev,
756 const u8 *peer,
757 const struct cfg80211_bitrate_mask *mask)
758 {
759 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
760 int index = 0, mode = 0, i;
761 struct mwifiex_adapter *adapter = priv->adapter;
762
763 /* Currently only 2.4GHz is supported */
764 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
765 /*
766 * Rates below 6 Mbps in the table are CCK rates; 802.11b
767 * and from 6 they are OFDM; 802.11G
768 */
769 if (mwifiex_rates[i].bitrate == 60) {
770 index = 1 << i;
771 break;
772 }
773 }
774
775 if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
776 mode = BAND_B;
777 } else {
778 mode = BAND_G;
779 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
780 mode |= BAND_B;
781 }
782
783 if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
784 adapter->config_bands = mode;
785 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
786 adapter->adhoc_start_band = mode;
787 adapter->adhoc_11n_enabled = false;
788 }
789 }
790 adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
791 adapter->channel_type = NL80211_CHAN_NO_HT;
792
793 wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
794 (mode & BAND_B) ? "b" : "", (mode & BAND_G) ? "g" : "");
795
796 return 0;
797 }
798
799 /*
800 * CFG802.11 operation handler for connection quality monitoring.
801 *
802 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
803 * events to FW.
804 */
805 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
806 struct net_device *dev,
807 s32 rssi_thold, u32 rssi_hyst)
808 {
809 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
810 struct mwifiex_ds_misc_subsc_evt subsc_evt;
811
812 priv->cqm_rssi_thold = rssi_thold;
813 priv->cqm_rssi_hyst = rssi_hyst;
814
815 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
816 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
817
818 /* Subscribe/unsubscribe low and high rssi events */
819 if (rssi_thold && rssi_hyst) {
820 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
821 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
822 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
823 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
824 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
825 return mwifiex_send_cmd_sync(priv,
826 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
827 0, 0, &subsc_evt);
828 } else {
829 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
830 return mwifiex_send_cmd_sync(priv,
831 HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
832 0, 0, &subsc_evt);
833 }
834
835 return 0;
836 }
837
838 /*
839 * CFG802.11 operation handler for disconnection request.
840 *
841 * This function does not work when there is already a disconnection
842 * procedure going on.
843 */
844 static int
845 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
846 u16 reason_code)
847 {
848 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
849
850 if (mwifiex_deauthenticate(priv, NULL))
851 return -EFAULT;
852
853 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
854 " reason code %d\n", priv->cfg_bssid, reason_code);
855
856 memset(priv->cfg_bssid, 0, ETH_ALEN);
857
858 return 0;
859 }
860
861 /*
862 * This function informs the CFG802.11 subsystem of a new IBSS.
863 *
864 * The following information are sent to the CFG802.11 subsystem
865 * to register the new IBSS. If we do not register the new IBSS,
866 * a kernel panic will result.
867 * - SSID
868 * - SSID length
869 * - BSSID
870 * - Channel
871 */
872 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
873 {
874 struct ieee80211_channel *chan;
875 struct mwifiex_bss_info bss_info;
876 struct cfg80211_bss *bss;
877 int ie_len;
878 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
879 enum ieee80211_band band;
880
881 if (mwifiex_get_bss_info(priv, &bss_info))
882 return -1;
883
884 ie_buf[0] = WLAN_EID_SSID;
885 ie_buf[1] = bss_info.ssid.ssid_len;
886
887 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
888 &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
889 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
890
891 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
892 chan = __ieee80211_get_channel(priv->wdev->wiphy,
893 ieee80211_channel_to_frequency(bss_info.bss_chan,
894 band));
895
896 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
897 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
898 0, ie_buf, ie_len, 0, GFP_KERNEL);
899 cfg80211_put_bss(bss);
900 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
901
902 return 0;
903 }
904
905 /*
906 * This function connects with a BSS.
907 *
908 * This function handles both Infra and Ad-Hoc modes. It also performs
909 * validity checking on the provided parameters, disconnects from the
910 * current BSS (if any), sets up the association/scan parameters,
911 * including security settings, and performs specific SSID scan before
912 * trying to connect.
913 *
914 * For Infra mode, the function returns failure if the specified SSID
915 * is not found in scan table. However, for Ad-Hoc mode, it can create
916 * the IBSS if it does not exist. On successful completion in either case,
917 * the function notifies the CFG802.11 subsystem of the new BSS connection.
918 */
919 static int
920 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
921 u8 *bssid, int mode, struct ieee80211_channel *channel,
922 struct cfg80211_connect_params *sme, bool privacy)
923 {
924 struct cfg80211_ssid req_ssid;
925 int ret, auth_type = 0;
926 struct cfg80211_bss *bss = NULL;
927 u8 is_scanning_required = 0;
928
929 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
930
931 req_ssid.ssid_len = ssid_len;
932 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
933 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
934 return -EINVAL;
935 }
936
937 memcpy(req_ssid.ssid, ssid, ssid_len);
938 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
939 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
940 return -EINVAL;
941 }
942
943 /* disconnect before try to associate */
944 mwifiex_deauthenticate(priv, NULL);
945
946 if (channel)
947 ret = mwifiex_set_rf_channel(priv, channel,
948 priv->adapter->channel_type);
949
950 /* As this is new association, clear locally stored
951 * keys and security related flags */
952 priv->sec_info.wpa_enabled = false;
953 priv->sec_info.wpa2_enabled = false;
954 priv->wep_key_curr_index = 0;
955 priv->sec_info.encryption_mode = 0;
956 priv->sec_info.is_authtype_auto = 0;
957 ret = mwifiex_set_encode(priv, NULL, 0, 0, NULL, 1);
958
959 if (mode == NL80211_IFTYPE_ADHOC) {
960 /* "privacy" is set only for ad-hoc mode */
961 if (privacy) {
962 /*
963 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
964 * the firmware can find a matching network from the
965 * scan. The cfg80211 does not give us the encryption
966 * mode at this stage so just setting it to WEP here.
967 */
968 priv->sec_info.encryption_mode =
969 WLAN_CIPHER_SUITE_WEP104;
970 priv->sec_info.authentication_mode =
971 NL80211_AUTHTYPE_OPEN_SYSTEM;
972 }
973
974 goto done;
975 }
976
977 /* Now handle infra mode. "sme" is valid for infra mode only */
978 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
979 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
980 priv->sec_info.is_authtype_auto = 1;
981 } else {
982 auth_type = sme->auth_type;
983 }
984
985 if (sme->crypto.n_ciphers_pairwise) {
986 priv->sec_info.encryption_mode =
987 sme->crypto.ciphers_pairwise[0];
988 priv->sec_info.authentication_mode = auth_type;
989 }
990
991 if (sme->crypto.cipher_group) {
992 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
993 priv->sec_info.authentication_mode = auth_type;
994 }
995 if (sme->ie)
996 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
997
998 if (sme->key) {
999 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1000 dev_dbg(priv->adapter->dev,
1001 "info: setting wep encryption"
1002 " with key len %d\n", sme->key_len);
1003 priv->wep_key_curr_index = sme->key_idx;
1004 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1005 sme->key_idx, NULL, 0);
1006 }
1007 }
1008 done:
1009 /*
1010 * Scan entries are valid for some time (15 sec). So we can save one
1011 * active scan time if we just try cfg80211_get_bss first. If it fails
1012 * then request scan and cfg80211_get_bss() again for final output.
1013 */
1014 while (1) {
1015 if (is_scanning_required) {
1016 /* Do specific SSID scanning */
1017 if (mwifiex_request_scan(priv, &req_ssid)) {
1018 dev_err(priv->adapter->dev, "scan error\n");
1019 return -EFAULT;
1020 }
1021 }
1022
1023 /* Find the BSS we want using available scan results */
1024 if (mode == NL80211_IFTYPE_ADHOC)
1025 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1026 bssid, ssid, ssid_len,
1027 WLAN_CAPABILITY_IBSS,
1028 WLAN_CAPABILITY_IBSS);
1029 else
1030 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1031 bssid, ssid, ssid_len,
1032 WLAN_CAPABILITY_ESS,
1033 WLAN_CAPABILITY_ESS);
1034
1035 if (!bss) {
1036 if (is_scanning_required) {
1037 dev_warn(priv->adapter->dev,
1038 "assoc: requested bss not found in scan results\n");
1039 break;
1040 }
1041 is_scanning_required = 1;
1042 } else {
1043 dev_dbg(priv->adapter->dev,
1044 "info: trying to associate to '%s' bssid %pM\n",
1045 (char *) req_ssid.ssid, bss->bssid);
1046 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1047 break;
1048 }
1049 }
1050
1051 if (mwifiex_bss_start(priv, bss, &req_ssid))
1052 return -EFAULT;
1053
1054 if (mode == NL80211_IFTYPE_ADHOC) {
1055 /* Inform the BSS information to kernel, otherwise
1056 * kernel will give a panic after successful assoc */
1057 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1058 return -EFAULT;
1059 }
1060
1061 return ret;
1062 }
1063
1064 /*
1065 * CFG802.11 operation handler for association request.
1066 *
1067 * This function does not work when the current mode is set to Ad-Hoc, or
1068 * when there is already an association procedure going on. The given BSS
1069 * information is used to associate.
1070 */
1071 static int
1072 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1073 struct cfg80211_connect_params *sme)
1074 {
1075 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1076 int ret = 0;
1077
1078 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1079 wiphy_err(wiphy, "received infra assoc request "
1080 "when station is in ibss mode\n");
1081 goto done;
1082 }
1083
1084 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1085 (char *) sme->ssid, sme->bssid);
1086
1087 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1088 priv->bss_mode, sme->channel, sme, 0);
1089 done:
1090 if (!ret) {
1091 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1092 NULL, 0, WLAN_STATUS_SUCCESS,
1093 GFP_KERNEL);
1094 dev_dbg(priv->adapter->dev,
1095 "info: associated to bssid %pM successfully\n",
1096 priv->cfg_bssid);
1097 } else {
1098 dev_dbg(priv->adapter->dev,
1099 "info: association to bssid %pM failed\n",
1100 priv->cfg_bssid);
1101 memset(priv->cfg_bssid, 0, ETH_ALEN);
1102 }
1103
1104 return ret;
1105 }
1106
1107 /*
1108 * CFG802.11 operation handler to join an IBSS.
1109 *
1110 * This function does not work in any mode other than Ad-Hoc, or if
1111 * a join operation is already in progress.
1112 */
1113 static int
1114 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1115 struct cfg80211_ibss_params *params)
1116 {
1117 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1118 int ret = 0;
1119
1120 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1121 wiphy_err(wiphy, "request to join ibss received "
1122 "when station is not in ibss mode\n");
1123 goto done;
1124 }
1125
1126 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1127 (char *) params->ssid, params->bssid);
1128
1129 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1130 params->bssid, priv->bss_mode,
1131 params->channel, NULL, params->privacy);
1132 done:
1133 if (!ret) {
1134 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1135 dev_dbg(priv->adapter->dev,
1136 "info: joined/created adhoc network with bssid"
1137 " %pM successfully\n", priv->cfg_bssid);
1138 } else {
1139 dev_dbg(priv->adapter->dev,
1140 "info: failed creating/joining adhoc network\n");
1141 }
1142
1143 return ret;
1144 }
1145
1146 /*
1147 * CFG802.11 operation handler to leave an IBSS.
1148 *
1149 * This function does not work if a leave operation is
1150 * already in progress.
1151 */
1152 static int
1153 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1154 {
1155 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1156
1157 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1158 priv->cfg_bssid);
1159 if (mwifiex_deauthenticate(priv, NULL))
1160 return -EFAULT;
1161
1162 memset(priv->cfg_bssid, 0, ETH_ALEN);
1163
1164 return 0;
1165 }
1166
1167 /*
1168 * CFG802.11 operation handler for scan request.
1169 *
1170 * This function issues a scan request to the firmware based upon
1171 * the user specified scan configuration. On successfull completion,
1172 * it also informs the results.
1173 */
1174 static int
1175 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1176 struct cfg80211_scan_request *request)
1177 {
1178 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1179 int i;
1180 struct ieee80211_channel *chan;
1181
1182 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1183
1184 priv->scan_request = request;
1185
1186 priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1187 GFP_KERNEL);
1188 if (!priv->user_scan_cfg) {
1189 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1190 return -ENOMEM;
1191 }
1192
1193 priv->user_scan_cfg->num_ssids = request->n_ssids;
1194 priv->user_scan_cfg->ssid_list = request->ssids;
1195
1196 if (request->ie && request->ie_len) {
1197 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1198 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1199 continue;
1200 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1201 memcpy(&priv->vs_ie[i].ie, request->ie,
1202 request->ie_len);
1203 break;
1204 }
1205 }
1206
1207 for (i = 0; i < request->n_channels; i++) {
1208 chan = request->channels[i];
1209 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1210 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1211
1212 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1213 priv->user_scan_cfg->chan_list[i].scan_type =
1214 MWIFIEX_SCAN_TYPE_PASSIVE;
1215 else
1216 priv->user_scan_cfg->chan_list[i].scan_type =
1217 MWIFIEX_SCAN_TYPE_ACTIVE;
1218
1219 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1220 }
1221 if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
1222 return -EFAULT;
1223
1224 if (request->ie && request->ie_len) {
1225 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1226 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
1227 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
1228 memset(&priv->vs_ie[i].ie, 0,
1229 MWIFIEX_MAX_VSIE_LEN);
1230 }
1231 }
1232 }
1233 return 0;
1234 }
1235
1236 /*
1237 * This function sets up the CFG802.11 specific HT capability fields
1238 * with default values.
1239 *
1240 * The following default values are set -
1241 * - HT Supported = True
1242 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1243 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1244 * - HT Capabilities supported by firmware
1245 * - MCS information, Rx mask = 0xff
1246 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1247 */
1248 static void
1249 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1250 struct mwifiex_private *priv)
1251 {
1252 int rx_mcs_supp;
1253 struct ieee80211_mcs_info mcs_set;
1254 u8 *mcs = (u8 *)&mcs_set;
1255 struct mwifiex_adapter *adapter = priv->adapter;
1256
1257 ht_info->ht_supported = true;
1258 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1259 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1260
1261 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1262
1263 /* Fill HT capability information */
1264 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1265 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1266 else
1267 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1268
1269 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1270 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1271 else
1272 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1273
1274 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1275 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1276 else
1277 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1278
1279 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1280 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1281 else
1282 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1283
1284 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1285 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1286 else
1287 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1288
1289 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1290 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1291
1292 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1293 /* Set MCS for 1x1 */
1294 memset(mcs, 0xff, rx_mcs_supp);
1295 /* Clear all the other values */
1296 memset(&mcs[rx_mcs_supp], 0,
1297 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1298 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1299 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1300 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1301 SETHT_MCS32(mcs_set.rx_mask);
1302
1303 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1304
1305 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1306 }
1307
1308 /*
1309 * create a new virtual interface with the given name
1310 */
1311 struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1312 char *name,
1313 enum nl80211_iftype type,
1314 u32 *flags,
1315 struct vif_params *params)
1316 {
1317 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1318 struct mwifiex_private *priv;
1319 struct net_device *dev;
1320 void *mdev_priv;
1321 struct wireless_dev *wdev;
1322
1323 if (!adapter)
1324 return NULL;
1325
1326 switch (type) {
1327 case NL80211_IFTYPE_UNSPECIFIED:
1328 case NL80211_IFTYPE_STATION:
1329 case NL80211_IFTYPE_ADHOC:
1330 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1331 if (priv->bss_mode) {
1332 wiphy_err(wiphy,
1333 "cannot create multiple sta/adhoc ifaces\n");
1334 return NULL;
1335 }
1336
1337 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1338 if (!wdev)
1339 return NULL;
1340
1341 wdev->wiphy = wiphy;
1342 priv->wdev = wdev;
1343 wdev->iftype = NL80211_IFTYPE_STATION;
1344
1345 if (type == NL80211_IFTYPE_UNSPECIFIED)
1346 priv->bss_mode = NL80211_IFTYPE_STATION;
1347 else
1348 priv->bss_mode = type;
1349
1350 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1351 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1352 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
1353 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1354 priv->bss_num = 0;
1355
1356 break;
1357 case NL80211_IFTYPE_AP:
1358 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
1359
1360 if (priv->bss_mode) {
1361 wiphy_err(wiphy, "Can't create multiple AP interfaces");
1362 return NULL;
1363 }
1364
1365 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1366 if (!wdev)
1367 return NULL;
1368
1369 priv->wdev = wdev;
1370 wdev->wiphy = wiphy;
1371 wdev->iftype = NL80211_IFTYPE_AP;
1372
1373 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
1374 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1375 priv->bss_priority = MWIFIEX_BSS_ROLE_UAP;
1376 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
1377 priv->bss_started = 0;
1378 priv->bss_num = 0;
1379 priv->bss_mode = type;
1380
1381 break;
1382 default:
1383 wiphy_err(wiphy, "type not supported\n");
1384 return NULL;
1385 }
1386
1387 dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1388 ether_setup, 1);
1389 if (!dev) {
1390 wiphy_err(wiphy, "no memory available for netdevice\n");
1391 goto error;
1392 }
1393
1394 mwifiex_init_priv_params(priv, dev);
1395 priv->netdev = dev;
1396
1397 mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1398
1399 if (adapter->config_bands & BAND_A)
1400 mwifiex_setup_ht_caps(
1401 &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1402
1403 dev_net_set(dev, wiphy_net(wiphy));
1404 dev->ieee80211_ptr = priv->wdev;
1405 dev->ieee80211_ptr->iftype = priv->bss_mode;
1406 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1407 memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1408 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1409
1410 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1411 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1412 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1413
1414 mdev_priv = netdev_priv(dev);
1415 *((unsigned long *) mdev_priv) = (unsigned long) priv;
1416
1417 SET_NETDEV_DEV(dev, adapter->dev);
1418
1419 /* Register network device */
1420 if (register_netdevice(dev)) {
1421 wiphy_err(wiphy, "cannot register virtual network device\n");
1422 goto error;
1423 }
1424
1425 sema_init(&priv->async_sem, 1);
1426 priv->scan_pending_on_block = false;
1427
1428 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1429
1430 #ifdef CONFIG_DEBUG_FS
1431 mwifiex_dev_debugfs_init(priv);
1432 #endif
1433 return dev;
1434 error:
1435 if (dev && (dev->reg_state == NETREG_UNREGISTERED))
1436 free_netdev(dev);
1437 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1438
1439 return NULL;
1440 }
1441 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1442
1443 /*
1444 * del_virtual_intf: remove the virtual interface determined by dev
1445 */
1446 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1447 {
1448 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1449
1450 #ifdef CONFIG_DEBUG_FS
1451 mwifiex_dev_debugfs_remove(priv);
1452 #endif
1453
1454 if (!netif_queue_stopped(priv->netdev))
1455 netif_stop_queue(priv->netdev);
1456
1457 if (netif_carrier_ok(priv->netdev))
1458 netif_carrier_off(priv->netdev);
1459
1460 if (dev->reg_state == NETREG_REGISTERED)
1461 unregister_netdevice(dev);
1462
1463 if (dev->reg_state == NETREG_UNREGISTERED)
1464 free_netdev(dev);
1465
1466 /* Clear the priv in adapter */
1467 priv->netdev = NULL;
1468
1469 priv->media_connected = false;
1470
1471 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1472
1473 return 0;
1474 }
1475 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1476
1477 /* station cfg80211 operations */
1478 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1479 .add_virtual_intf = mwifiex_add_virtual_intf,
1480 .del_virtual_intf = mwifiex_del_virtual_intf,
1481 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1482 .scan = mwifiex_cfg80211_scan,
1483 .connect = mwifiex_cfg80211_connect,
1484 .disconnect = mwifiex_cfg80211_disconnect,
1485 .get_station = mwifiex_cfg80211_get_station,
1486 .dump_station = mwifiex_cfg80211_dump_station,
1487 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1488 .set_channel = mwifiex_cfg80211_set_channel,
1489 .join_ibss = mwifiex_cfg80211_join_ibss,
1490 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1491 .add_key = mwifiex_cfg80211_add_key,
1492 .del_key = mwifiex_cfg80211_del_key,
1493 .set_default_key = mwifiex_cfg80211_set_default_key,
1494 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1495 .set_tx_power = mwifiex_cfg80211_set_tx_power,
1496 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1497 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
1498 };
1499
1500 /*
1501 * This function registers the device with CFG802.11 subsystem.
1502 *
1503 * The function creates the wireless device/wiphy, populates it with
1504 * default parameters and handler function pointers, and finally
1505 * registers the device.
1506 */
1507
1508 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
1509 {
1510 int ret;
1511 void *wdev_priv;
1512 struct wiphy *wiphy;
1513 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
1514 u8 *country_code;
1515
1516 /* create a new wiphy for use with cfg80211 */
1517 wiphy = wiphy_new(&mwifiex_cfg80211_ops,
1518 sizeof(struct mwifiex_adapter *));
1519 if (!wiphy) {
1520 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
1521 return -ENOMEM;
1522 }
1523 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
1524 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
1525 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1526 BIT(NL80211_IFTYPE_ADHOC) |
1527 BIT(NL80211_IFTYPE_AP);
1528
1529 wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1530 if (adapter->config_bands & BAND_A)
1531 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1532 else
1533 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1534
1535 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
1536 wiphy->n_iface_combinations = 1;
1537
1538 /* Initialize cipher suits */
1539 wiphy->cipher_suites = mwifiex_cipher_suites;
1540 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1541
1542 memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1543 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1544 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | WIPHY_FLAG_CUSTOM_REGULATORY;
1545
1546 /* Reserve space for mwifiex specific private data for BSS */
1547 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
1548
1549 wiphy->reg_notifier = mwifiex_reg_notifier;
1550
1551 /* Set struct mwifiex_adapter pointer in wiphy_priv */
1552 wdev_priv = wiphy_priv(wiphy);
1553 *(unsigned long *)wdev_priv = (unsigned long)adapter;
1554
1555 set_wiphy_dev(wiphy, (struct device *)priv->adapter->dev);
1556
1557 ret = wiphy_register(wiphy);
1558 if (ret < 0) {
1559 dev_err(adapter->dev,
1560 "%s: wiphy_register failed: %d\n", __func__, ret);
1561 wiphy_free(wiphy);
1562 return ret;
1563 }
1564 country_code = mwifiex_11d_code_2_region(priv->adapter->region_code);
1565 if (country_code && regulatory_hint(wiphy, country_code))
1566 dev_err(adapter->dev, "regulatory_hint() failed\n");
1567
1568 adapter->wiphy = wiphy;
1569 return ret;
1570 }
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