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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/padovan/blueto...
[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 /*
24 * This function maps the nl802.11 channel type into driver channel type.
25 *
26 * The mapping is as follows -
27 * NL80211_CHAN_NO_HT -> NO_SEC_CHANNEL
28 * NL80211_CHAN_HT20 -> NO_SEC_CHANNEL
29 * NL80211_CHAN_HT40PLUS -> SEC_CHANNEL_ABOVE
30 * NL80211_CHAN_HT40MINUS -> SEC_CHANNEL_BELOW
31 * Others -> NO_SEC_CHANNEL
32 */
33 static int
34 mwifiex_cfg80211_channel_type_to_mwifiex_channels(enum nl80211_channel_type
35 channel_type)
36 {
37 int channel;
38 switch (channel_type) {
39 case NL80211_CHAN_NO_HT:
40 case NL80211_CHAN_HT20:
41 channel = NO_SEC_CHANNEL;
42 break;
43 case NL80211_CHAN_HT40PLUS:
44 channel = SEC_CHANNEL_ABOVE;
45 break;
46 case NL80211_CHAN_HT40MINUS:
47 channel = SEC_CHANNEL_BELOW;
48 break;
49 default:
50 channel = NO_SEC_CHANNEL;
51 }
52 return channel;
53 }
54
55 /*
56 * This function maps the driver channel type into nl802.11 channel type.
57 *
58 * The mapping is as follows -
59 * NO_SEC_CHANNEL -> NL80211_CHAN_HT20
60 * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS
61 * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS
62 * Others -> NL80211_CHAN_HT20
63 */
64 static enum nl80211_channel_type
65 mwifiex_channels_to_cfg80211_channel_type(int channel_type)
66 {
67 int channel;
68 switch (channel_type) {
69 case NO_SEC_CHANNEL:
70 channel = NL80211_CHAN_HT20;
71 break;
72 case SEC_CHANNEL_ABOVE:
73 channel = NL80211_CHAN_HT40PLUS;
74 break;
75 case SEC_CHANNEL_BELOW:
76 channel = NL80211_CHAN_HT40MINUS;
77 break;
78 default:
79 channel = NL80211_CHAN_HT20;
80 }
81 return channel;
82 }
83
84 /*
85 * This function checks whether WEP is set.
86 */
87 static int
88 mwifiex_is_alg_wep(u32 cipher)
89 {
90 int alg = 0;
91
92 switch (cipher) {
93 case WLAN_CIPHER_SUITE_WEP40:
94 case WLAN_CIPHER_SUITE_WEP104:
95 alg = 1;
96 break;
97 default:
98 alg = 0;
99 break;
100 }
101 return alg;
102 }
103
104 /*
105 * This function retrieves the private structure from kernel wiphy structure.
106 */
107 static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
108 {
109 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
110 }
111
112 /*
113 * CFG802.11 operation handler to delete a network key.
114 */
115 static int
116 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
117 u8 key_index, bool pairwise, const u8 *mac_addr)
118 {
119 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
120 int ret = 0;
121
122 ret = mwifiex_set_encode(priv, NULL, 0, key_index, 1);
123 if (ret) {
124 wiphy_err(wiphy, "deleting the crypto keys\n");
125 return -EFAULT;
126 }
127
128 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
129 return 0;
130 }
131
132 /*
133 * CFG802.11 operation handler to set Tx power.
134 */
135 static int
136 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
137 enum nl80211_tx_power_setting type,
138 int dbm)
139 {
140 int ret = 0;
141 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
142 struct mwifiex_power_cfg power_cfg;
143
144 if (type == NL80211_TX_POWER_FIXED) {
145 power_cfg.is_power_auto = 0;
146 power_cfg.power_level = dbm;
147 } else {
148 power_cfg.is_power_auto = 1;
149 }
150
151 ret = mwifiex_set_tx_power(priv, &power_cfg);
152
153 return ret;
154 }
155
156 /*
157 * CFG802.11 operation handler to set Power Save option.
158 *
159 * The timeout value, if provided, is currently ignored.
160 */
161 static int
162 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
163 struct net_device *dev,
164 bool enabled, int timeout)
165 {
166 int ret = 0;
167 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
168 u32 ps_mode;
169
170 if (timeout)
171 wiphy_dbg(wiphy,
172 "info: ignoring the timeout value"
173 " for IEEE power save\n");
174
175 ps_mode = enabled;
176 ret = mwifiex_drv_set_power(priv, &ps_mode);
177
178 return ret;
179 }
180
181 /*
182 * CFG802.11 operation handler to set the default network key.
183 */
184 static int
185 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
186 u8 key_index, bool unicast,
187 bool multicast)
188 {
189 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
190 int ret;
191
192 /* Return if WEP key not configured */
193 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
194 return 0;
195
196 ret = mwifiex_set_encode(priv, NULL, 0, key_index, 0);
197
198 wiphy_dbg(wiphy, "info: set default Tx key index\n");
199
200 if (ret)
201 return -EFAULT;
202
203 return 0;
204 }
205
206 /*
207 * CFG802.11 operation handler to add a network key.
208 */
209 static int
210 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
211 u8 key_index, bool pairwise, const u8 *mac_addr,
212 struct key_params *params)
213 {
214 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
215 int ret = 0;
216
217 ret = mwifiex_set_encode(priv, params->key, params->key_len,
218 key_index, 0);
219
220 wiphy_dbg(wiphy, "info: crypto keys added\n");
221
222 if (ret)
223 return -EFAULT;
224
225 return 0;
226 }
227
228 /*
229 * This function sends domain information to the firmware.
230 *
231 * The following information are passed to the firmware -
232 * - Country codes
233 * - Sub bands (first channel, number of channels, maximum Tx power)
234 */
235 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
236 {
237 u8 no_of_triplet = 0;
238 struct ieee80211_country_ie_triplet *t;
239 u8 no_of_parsed_chan = 0;
240 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
241 u8 i, flag = 0;
242 enum ieee80211_band band;
243 struct ieee80211_supported_band *sband;
244 struct ieee80211_channel *ch;
245 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
246 struct mwifiex_adapter *adapter = priv->adapter;
247 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
248 int ret = 0;
249
250 /* Set country code */
251 domain_info->country_code[0] = priv->country_code[0];
252 domain_info->country_code[1] = priv->country_code[1];
253 domain_info->country_code[2] = ' ';
254
255 band = mwifiex_band_to_radio_type(adapter->config_bands);
256 if (!wiphy->bands[band]) {
257 wiphy_err(wiphy, "11D: setting domain info in FW\n");
258 return -1;
259 }
260
261 sband = wiphy->bands[band];
262
263 for (i = 0; i < sband->n_channels ; i++) {
264 ch = &sband->channels[i];
265 if (ch->flags & IEEE80211_CHAN_DISABLED)
266 continue;
267
268 if (!flag) {
269 flag = 1;
270 first_chan = (u32) ch->hw_value;
271 next_chan = first_chan;
272 max_pwr = ch->max_power;
273 no_of_parsed_chan = 1;
274 continue;
275 }
276
277 if (ch->hw_value == next_chan + 1 &&
278 ch->max_power == max_pwr) {
279 next_chan++;
280 no_of_parsed_chan++;
281 } else {
282 t = &domain_info->triplet[no_of_triplet];
283 t->chans.first_channel = first_chan;
284 t->chans.num_channels = no_of_parsed_chan;
285 t->chans.max_power = max_pwr;
286 no_of_triplet++;
287 first_chan = (u32) ch->hw_value;
288 next_chan = first_chan;
289 max_pwr = ch->max_power;
290 no_of_parsed_chan = 1;
291 }
292 }
293
294 if (flag) {
295 t = &domain_info->triplet[no_of_triplet];
296 t->chans.first_channel = first_chan;
297 t->chans.num_channels = no_of_parsed_chan;
298 t->chans.max_power = max_pwr;
299 no_of_triplet++;
300 }
301
302 domain_info->no_of_triplet = no_of_triplet;
303 /* Send cmd to FW to set domain info */
304 ret = mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
305 HostCmd_ACT_GEN_SET, 0, NULL);
306 if (ret)
307 wiphy_err(wiphy, "11D: setting domain info in FW\n");
308
309 return ret;
310 }
311
312 /*
313 * CFG802.11 regulatory domain callback function.
314 *
315 * This function is called when the regulatory domain is changed due to the
316 * following reasons -
317 * - Set by driver
318 * - Set by system core
319 * - Set by user
320 * - Set bt Country IE
321 */
322 static int mwifiex_reg_notifier(struct wiphy *wiphy,
323 struct regulatory_request *request)
324 {
325 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
326
327 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
328 " %c%c\n", request->alpha2[0], request->alpha2[1]);
329
330 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
331
332 switch (request->initiator) {
333 case NL80211_REGDOM_SET_BY_DRIVER:
334 case NL80211_REGDOM_SET_BY_CORE:
335 case NL80211_REGDOM_SET_BY_USER:
336 break;
337 /* Todo: apply driver specific changes in channel flags based
338 on the request initiator if necessary. */
339 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
340 break;
341 }
342 mwifiex_send_domain_info_cmd_fw(wiphy);
343
344 return 0;
345 }
346
347 /*
348 * This function sets the RF channel.
349 *
350 * This function creates multiple IOCTL requests, populates them accordingly
351 * and issues them to set the band/channel and frequency.
352 */
353 static int
354 mwifiex_set_rf_channel(struct mwifiex_private *priv,
355 struct ieee80211_channel *chan,
356 enum nl80211_channel_type channel_type)
357 {
358 struct mwifiex_chan_freq_power cfp;
359 int ret = 0;
360 struct mwifiex_ds_band_cfg band_cfg;
361 u32 config_bands = 0;
362 struct wiphy *wiphy = priv->wdev->wiphy;
363
364 if (chan) {
365 memset(&band_cfg, 0, sizeof(band_cfg));
366 /* Set appropriate bands */
367 if (chan->band == IEEE80211_BAND_2GHZ)
368 config_bands = BAND_B | BAND_G | BAND_GN;
369 else
370 config_bands = BAND_AN | BAND_A;
371 if (priv->bss_mode == NL80211_IFTYPE_STATION
372 || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
373 band_cfg.config_bands = config_bands;
374 } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
375 band_cfg.config_bands = config_bands;
376 band_cfg.adhoc_start_band = config_bands;
377 }
378 /* Set channel offset */
379 band_cfg.sec_chan_offset =
380 mwifiex_cfg80211_channel_type_to_mwifiex_channels
381 (channel_type);
382 ret = mwifiex_set_radio_band_cfg(priv, &band_cfg);
383
384 if (ret)
385 return -EFAULT;
386 mwifiex_send_domain_info_cmd_fw(wiphy);
387 }
388
389 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
390 "mode %d\n", config_bands, band_cfg.sec_chan_offset,
391 priv->bss_mode);
392 if (!chan)
393 return ret;
394
395 memset(&cfp, 0, sizeof(cfp));
396 cfp.freq = chan->center_freq;
397 /* Convert frequency to channel */
398 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
399
400 ret = mwifiex_bss_set_channel(priv, &cfp);
401 if (ret)
402 return -EFAULT;
403
404 ret = mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
405
406 return ret;
407 }
408
409 /*
410 * CFG802.11 operation handler to set channel.
411 *
412 * This function can only be used when station is not connected.
413 */
414 static int
415 mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
416 struct ieee80211_channel *chan,
417 enum nl80211_channel_type channel_type)
418 {
419 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
420
421 if (priv->media_connected) {
422 wiphy_err(wiphy, "This setting is valid only when station "
423 "is not connected\n");
424 return -EINVAL;
425 }
426
427 return mwifiex_set_rf_channel(priv, chan, channel_type);
428 }
429
430 /*
431 * This function sets the fragmentation threshold.
432 *
433 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
434 * and MWIFIEX_FRAG_MAX_VALUE.
435 */
436 static int
437 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
438 {
439 int ret = 0;
440
441 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
442 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
443 return -EINVAL;
444
445 /* Send request to firmware */
446 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
447 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
448 &frag_thr);
449
450 return ret;
451 }
452
453 /*
454 * This function sets the RTS threshold.
455
456 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
457 * and MWIFIEX_RTS_MAX_VALUE.
458 */
459 static int
460 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
461 {
462 int ret = 0;
463
464 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
465 rts_thr = MWIFIEX_RTS_MAX_VALUE;
466
467 /* Send request to firmware */
468 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
469 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
470 &rts_thr);
471
472 return ret;
473 }
474
475 /*
476 * CFG802.11 operation handler to set wiphy parameters.
477 *
478 * This function can be used to set the RTS threshold and the
479 * Fragmentation threshold of the driver.
480 */
481 static int
482 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
483 {
484 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
485
486 int ret = 0;
487
488 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
489 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
490
491 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
492 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
493
494 return ret;
495 }
496
497 /*
498 * CFG802.11 operation handler to change interface type.
499 */
500 static int
501 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
502 struct net_device *dev,
503 enum nl80211_iftype type, u32 *flags,
504 struct vif_params *params)
505 {
506 int ret = 0;
507 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
508
509 if (priv->bss_mode == type) {
510 wiphy_warn(wiphy, "already set to required type\n");
511 return 0;
512 }
513
514 priv->bss_mode = type;
515
516 switch (type) {
517 case NL80211_IFTYPE_ADHOC:
518 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
519 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
520 break;
521 case NL80211_IFTYPE_STATION:
522 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
523 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
524 break;
525 case NL80211_IFTYPE_UNSPECIFIED:
526 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
527 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
528 return 0;
529 default:
530 wiphy_err(wiphy, "unknown interface type: %d\n", type);
531 return -EINVAL;
532 }
533
534 mwifiex_deauthenticate(priv, NULL);
535
536 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
537
538 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
539 HostCmd_ACT_GEN_SET, 0, NULL);
540
541 return ret;
542 }
543
544 /*
545 * This function dumps the station information on a buffer.
546 *
547 * The following information are shown -
548 * - Total bytes transmitted
549 * - Total bytes received
550 * - Total packets transmitted
551 * - Total packets received
552 * - Signal quality level
553 * - Transmission rate
554 */
555 static int
556 mwifiex_dump_station_info(struct mwifiex_private *priv,
557 struct station_info *sinfo)
558 {
559 struct mwifiex_ds_get_signal signal;
560 struct mwifiex_rate_cfg rate;
561 int ret = 0;
562
563 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
564 STATION_INFO_RX_PACKETS |
565 STATION_INFO_TX_PACKETS
566 | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
567
568 /* Get signal information from the firmware */
569 memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
570 if (mwifiex_get_signal_info(priv, &signal)) {
571 dev_err(priv->adapter->dev, "getting signal information\n");
572 ret = -EFAULT;
573 }
574
575 if (mwifiex_drv_get_data_rate(priv, &rate)) {
576 dev_err(priv->adapter->dev, "getting data rate\n");
577 ret = -EFAULT;
578 }
579
580 sinfo->rx_bytes = priv->stats.rx_bytes;
581 sinfo->tx_bytes = priv->stats.tx_bytes;
582 sinfo->rx_packets = priv->stats.rx_packets;
583 sinfo->tx_packets = priv->stats.tx_packets;
584 sinfo->signal = priv->w_stats.qual.level;
585 sinfo->txrate.legacy = rate.rate;
586
587 return ret;
588 }
589
590 /*
591 * CFG802.11 operation handler to get station information.
592 *
593 * This function only works in connected mode, and dumps the
594 * requested station information, if available.
595 */
596 static int
597 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
598 u8 *mac, struct station_info *sinfo)
599 {
600 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
601 int ret = 0;
602
603 mwifiex_dump_station_info(priv, sinfo);
604
605 if (!priv->media_connected)
606 return -ENOENT;
607 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
608 return -ENOENT;
609
610
611 ret = mwifiex_dump_station_info(priv, sinfo);
612
613 return ret;
614 }
615
616 /* Supported rates to be advertised to the cfg80211 */
617
618 static struct ieee80211_rate mwifiex_rates[] = {
619 {.bitrate = 10, .hw_value = 2, },
620 {.bitrate = 20, .hw_value = 4, },
621 {.bitrate = 55, .hw_value = 11, },
622 {.bitrate = 110, .hw_value = 22, },
623 {.bitrate = 220, .hw_value = 44, },
624 {.bitrate = 60, .hw_value = 12, },
625 {.bitrate = 90, .hw_value = 18, },
626 {.bitrate = 120, .hw_value = 24, },
627 {.bitrate = 180, .hw_value = 36, },
628 {.bitrate = 240, .hw_value = 48, },
629 {.bitrate = 360, .hw_value = 72, },
630 {.bitrate = 480, .hw_value = 96, },
631 {.bitrate = 540, .hw_value = 108, },
632 {.bitrate = 720, .hw_value = 144, },
633 };
634
635 /* Channel definitions to be advertised to cfg80211 */
636
637 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
638 {.center_freq = 2412, .hw_value = 1, },
639 {.center_freq = 2417, .hw_value = 2, },
640 {.center_freq = 2422, .hw_value = 3, },
641 {.center_freq = 2427, .hw_value = 4, },
642 {.center_freq = 2432, .hw_value = 5, },
643 {.center_freq = 2437, .hw_value = 6, },
644 {.center_freq = 2442, .hw_value = 7, },
645 {.center_freq = 2447, .hw_value = 8, },
646 {.center_freq = 2452, .hw_value = 9, },
647 {.center_freq = 2457, .hw_value = 10, },
648 {.center_freq = 2462, .hw_value = 11, },
649 {.center_freq = 2467, .hw_value = 12, },
650 {.center_freq = 2472, .hw_value = 13, },
651 {.center_freq = 2484, .hw_value = 14, },
652 };
653
654 static struct ieee80211_supported_band mwifiex_band_2ghz = {
655 .channels = mwifiex_channels_2ghz,
656 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
657 .bitrates = mwifiex_rates,
658 .n_bitrates = 14,
659 };
660
661 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
662 {.center_freq = 5040, .hw_value = 8, },
663 {.center_freq = 5060, .hw_value = 12, },
664 {.center_freq = 5080, .hw_value = 16, },
665 {.center_freq = 5170, .hw_value = 34, },
666 {.center_freq = 5190, .hw_value = 38, },
667 {.center_freq = 5210, .hw_value = 42, },
668 {.center_freq = 5230, .hw_value = 46, },
669 {.center_freq = 5180, .hw_value = 36, },
670 {.center_freq = 5200, .hw_value = 40, },
671 {.center_freq = 5220, .hw_value = 44, },
672 {.center_freq = 5240, .hw_value = 48, },
673 {.center_freq = 5260, .hw_value = 52, },
674 {.center_freq = 5280, .hw_value = 56, },
675 {.center_freq = 5300, .hw_value = 60, },
676 {.center_freq = 5320, .hw_value = 64, },
677 {.center_freq = 5500, .hw_value = 100, },
678 {.center_freq = 5520, .hw_value = 104, },
679 {.center_freq = 5540, .hw_value = 108, },
680 {.center_freq = 5560, .hw_value = 112, },
681 {.center_freq = 5580, .hw_value = 116, },
682 {.center_freq = 5600, .hw_value = 120, },
683 {.center_freq = 5620, .hw_value = 124, },
684 {.center_freq = 5640, .hw_value = 128, },
685 {.center_freq = 5660, .hw_value = 132, },
686 {.center_freq = 5680, .hw_value = 136, },
687 {.center_freq = 5700, .hw_value = 140, },
688 {.center_freq = 5745, .hw_value = 149, },
689 {.center_freq = 5765, .hw_value = 153, },
690 {.center_freq = 5785, .hw_value = 157, },
691 {.center_freq = 5805, .hw_value = 161, },
692 {.center_freq = 5825, .hw_value = 165, },
693 };
694
695 static struct ieee80211_supported_band mwifiex_band_5ghz = {
696 .channels = mwifiex_channels_5ghz,
697 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
698 .bitrates = mwifiex_rates - 4,
699 .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
700 };
701
702
703 /* Supported crypto cipher suits to be advertised to cfg80211 */
704
705 static const u32 mwifiex_cipher_suites[] = {
706 WLAN_CIPHER_SUITE_WEP40,
707 WLAN_CIPHER_SUITE_WEP104,
708 WLAN_CIPHER_SUITE_TKIP,
709 WLAN_CIPHER_SUITE_CCMP,
710 };
711
712 /*
713 * CFG802.11 operation handler for disconnection request.
714 *
715 * This function does not work when there is already a disconnection
716 * procedure going on.
717 */
718 static int
719 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
720 u16 reason_code)
721 {
722 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
723
724 if (priv->disconnect)
725 return -EBUSY;
726
727 priv->disconnect = 1;
728 if (mwifiex_deauthenticate(priv, NULL))
729 return -EFAULT;
730
731 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
732 " reason code %d\n", priv->cfg_bssid, reason_code);
733
734 queue_work(priv->workqueue, &priv->cfg_workqueue);
735
736 return 0;
737 }
738
739 /*
740 * This function informs the CFG802.11 subsystem of a new IBSS.
741 *
742 * The following information are sent to the CFG802.11 subsystem
743 * to register the new IBSS. If we do not register the new IBSS,
744 * a kernel panic will result.
745 * - SSID
746 * - SSID length
747 * - BSSID
748 * - Channel
749 */
750 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
751 {
752 int ret = 0;
753 struct ieee80211_channel *chan;
754 struct mwifiex_bss_info bss_info;
755 int ie_len = 0;
756 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
757
758 ret = mwifiex_get_bss_info(priv, &bss_info);
759 if (ret)
760 return ret;
761
762 ie_buf[0] = WLAN_EID_SSID;
763 ie_buf[1] = bss_info.ssid.ssid_len;
764
765 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
766 &bss_info.ssid.ssid,
767 bss_info.ssid.ssid_len);
768 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
769
770 chan = __ieee80211_get_channel(priv->wdev->wiphy,
771 ieee80211_channel_to_frequency(bss_info.bss_chan,
772 priv->curr_bss_params.band));
773
774 cfg80211_inform_bss(priv->wdev->wiphy, chan,
775 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
776 0, ie_buf, ie_len, 0, GFP_KERNEL);
777 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
778
779 return ret;
780 }
781
782 /*
783 * This function informs the CFG802.11 subsystem of a new BSS connection.
784 *
785 * The following information are sent to the CFG802.11 subsystem
786 * to register the new BSS connection. If we do not register the new BSS,
787 * a kernel panic will result.
788 * - MAC address
789 * - Capabilities
790 * - Beacon period
791 * - RSSI value
792 * - Channel
793 * - Supported rates IE
794 * - Extended capabilities IE
795 * - DS parameter set IE
796 * - HT Capability IE
797 * - Vendor Specific IE (221)
798 * - WPA IE
799 * - RSN IE
800 */
801 static int mwifiex_inform_bss_from_scan_result(struct mwifiex_private *priv,
802 struct mwifiex_802_11_ssid *ssid)
803 {
804 struct mwifiex_scan_resp scan_resp;
805 struct mwifiex_bssdescriptor *scan_table;
806 int i, j;
807 struct ieee80211_channel *chan;
808 u8 *ie, *tmp, *ie_buf;
809 u32 ie_len;
810 u64 ts = 0;
811 u8 *beacon;
812 int beacon_size;
813 u8 element_id, element_len;
814
815 memset(&scan_resp, 0, sizeof(scan_resp));
816 scan_resp.scan_table = (u8 *) priv->adapter->scan_table;
817 scan_resp.num_in_scan_table = priv->adapter->num_in_scan_table;
818
819 #define MAX_IE_BUF 2048
820 ie_buf = kzalloc(MAX_IE_BUF, GFP_KERNEL);
821 if (!ie_buf) {
822 dev_err(priv->adapter->dev, "%s: failed to alloc ie_buf\n",
823 __func__);
824 return -ENOMEM;
825 }
826
827 scan_table = (struct mwifiex_bssdescriptor *) scan_resp.scan_table;
828 for (i = 0; i < scan_resp.num_in_scan_table; i++) {
829 if (ssid) {
830 /* Inform specific BSS only */
831 if (memcmp(ssid->ssid, scan_table[i].ssid.ssid,
832 ssid->ssid_len))
833 continue;
834 }
835 memset(ie_buf, 0, MAX_IE_BUF);
836 ie_buf[0] = WLAN_EID_SSID;
837 ie_buf[1] = scan_table[i].ssid.ssid_len;
838 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
839 scan_table[i].ssid.ssid, ie_buf[1]);
840
841 ie = ie_buf + ie_buf[1] + sizeof(struct ieee_types_header);
842 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
843
844 ie[0] = WLAN_EID_SUPP_RATES;
845
846 for (j = 0; j < sizeof(scan_table[i].supported_rates); j++) {
847 if (!scan_table[i].supported_rates[j])
848 break;
849 else
850 ie[j + sizeof(struct ieee_types_header)] =
851 scan_table[i].supported_rates[j];
852 }
853
854 ie[1] = j;
855 ie_len += ie[1] + sizeof(struct ieee_types_header);
856
857 beacon = scan_table[i].beacon_buf;
858 beacon_size = scan_table[i].beacon_buf_size;
859
860 /* Skip time stamp, beacon interval and capability */
861
862 if (beacon) {
863 beacon += sizeof(scan_table[i].beacon_period)
864 + sizeof(scan_table[i].time_stamp) +
865 +sizeof(scan_table[i].cap_info_bitmap);
866
867 beacon_size -= sizeof(scan_table[i].beacon_period)
868 + sizeof(scan_table[i].time_stamp)
869 + sizeof(scan_table[i].cap_info_bitmap);
870 }
871
872 while (beacon_size >= sizeof(struct ieee_types_header)) {
873 ie = ie_buf + ie_len;
874 element_id = *beacon;
875 element_len = *(beacon + 1);
876 if (beacon_size < (int) element_len +
877 sizeof(struct ieee_types_header)) {
878 dev_err(priv->adapter->dev, "%s: in processing"
879 " IE, bytes left < IE length\n",
880 __func__);
881 break;
882 }
883 switch (element_id) {
884 case WLAN_EID_EXT_CAPABILITY:
885 case WLAN_EID_DS_PARAMS:
886 case WLAN_EID_HT_CAPABILITY:
887 case WLAN_EID_VENDOR_SPECIFIC:
888 case WLAN_EID_RSN:
889 case WLAN_EID_BSS_AC_ACCESS_DELAY:
890 ie[0] = element_id;
891 ie[1] = element_len;
892 tmp = (u8 *) beacon;
893 memcpy(&ie[sizeof(struct ieee_types_header)],
894 tmp + sizeof(struct ieee_types_header),
895 element_len);
896 ie_len += ie[1] +
897 sizeof(struct ieee_types_header);
898 break;
899 default:
900 break;
901 }
902 beacon += element_len +
903 sizeof(struct ieee_types_header);
904 beacon_size -= element_len +
905 sizeof(struct ieee_types_header);
906 }
907 chan = ieee80211_get_channel(priv->wdev->wiphy,
908 scan_table[i].freq);
909 cfg80211_inform_bss(priv->wdev->wiphy, chan,
910 scan_table[i].mac_address,
911 ts, scan_table[i].cap_info_bitmap,
912 scan_table[i].beacon_period,
913 ie_buf, ie_len,
914 scan_table[i].rssi, GFP_KERNEL);
915 }
916
917 kfree(ie_buf);
918 return 0;
919 }
920
921 /*
922 * This function connects with a BSS.
923 *
924 * This function handles both Infra and Ad-Hoc modes. It also performs
925 * validity checking on the provided parameters, disconnects from the
926 * current BSS (if any), sets up the association/scan parameters,
927 * including security settings, and performs specific SSID scan before
928 * trying to connect.
929 *
930 * For Infra mode, the function returns failure if the specified SSID
931 * is not found in scan table. However, for Ad-Hoc mode, it can create
932 * the IBSS if it does not exist. On successful completion in either case,
933 * the function notifies the CFG802.11 subsystem of the new BSS connection,
934 * otherwise the kernel will panic.
935 */
936 static int
937 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
938 u8 *bssid, int mode, struct ieee80211_channel *channel,
939 struct cfg80211_connect_params *sme, bool privacy)
940 {
941 struct mwifiex_802_11_ssid req_ssid;
942 struct mwifiex_ssid_bssid ssid_bssid;
943 int ret = 0;
944 int auth_type = 0, pairwise_encrypt_mode = 0;
945 int group_encrypt_mode = 0;
946 int alg_is_wep = 0;
947
948 memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
949 memset(&ssid_bssid, 0, sizeof(struct mwifiex_ssid_bssid));
950
951 req_ssid.ssid_len = ssid_len;
952 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
953 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
954 return -EINVAL;
955 }
956
957 memcpy(req_ssid.ssid, ssid, ssid_len);
958 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
959 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
960 return -EINVAL;
961 }
962
963 /* disconnect before try to associate */
964 mwifiex_deauthenticate(priv, NULL);
965
966 if (channel)
967 ret = mwifiex_set_rf_channel(priv, channel,
968 mwifiex_channels_to_cfg80211_channel_type
969 (priv->adapter->chan_offset));
970
971 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
972
973 if (mode == NL80211_IFTYPE_ADHOC) {
974 /* "privacy" is set only for ad-hoc mode */
975 if (privacy) {
976 /*
977 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
978 * the firmware can find a matching network from the
979 * scan. The cfg80211 does not give us the encryption
980 * mode at this stage so just setting it to WEP here.
981 */
982 priv->sec_info.encryption_mode =
983 WLAN_CIPHER_SUITE_WEP104;
984 priv->sec_info.authentication_mode =
985 NL80211_AUTHTYPE_OPEN_SYSTEM;
986 }
987
988 goto done;
989 }
990
991 /* Now handle infra mode. "sme" is valid for infra mode only */
992 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
993 || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
994 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
995 else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
996 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
997
998 if (sme->crypto.n_ciphers_pairwise) {
999 priv->sec_info.encryption_mode =
1000 sme->crypto.ciphers_pairwise[0];
1001 priv->sec_info.authentication_mode = auth_type;
1002 }
1003
1004 if (sme->crypto.cipher_group) {
1005 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1006 priv->sec_info.authentication_mode = auth_type;
1007 }
1008 if (sme->ie)
1009 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1010
1011 if (sme->key) {
1012 alg_is_wep = mwifiex_is_alg_wep(pairwise_encrypt_mode)
1013 | mwifiex_is_alg_wep(group_encrypt_mode);
1014 if (alg_is_wep) {
1015 dev_dbg(priv->adapter->dev,
1016 "info: setting wep encryption"
1017 " with key len %d\n", sme->key_len);
1018 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
1019 sme->key_idx, 0);
1020 }
1021 }
1022 done:
1023 /* Do specific SSID scanning */
1024 if (mwifiex_request_scan(priv, &req_ssid)) {
1025 dev_err(priv->adapter->dev, "scan error\n");
1026 return -EFAULT;
1027 }
1028
1029
1030 memcpy(&ssid_bssid.ssid, &req_ssid, sizeof(struct mwifiex_802_11_ssid));
1031
1032 if (mode != NL80211_IFTYPE_ADHOC) {
1033 if (mwifiex_find_best_bss(priv, &ssid_bssid))
1034 return -EFAULT;
1035 /* Inform the BSS information to kernel, otherwise
1036 * kernel will give a panic after successful assoc */
1037 if (mwifiex_inform_bss_from_scan_result(priv, &req_ssid))
1038 return -EFAULT;
1039 }
1040
1041 dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
1042 (char *) req_ssid.ssid, ssid_bssid.bssid);
1043
1044 memcpy(&priv->cfg_bssid, ssid_bssid.bssid, 6);
1045
1046 /* Connect to BSS by ESSID */
1047 memset(&ssid_bssid.bssid, 0, ETH_ALEN);
1048
1049 if (!netif_queue_stopped(priv->netdev))
1050 netif_stop_queue(priv->netdev);
1051
1052 if (mwifiex_bss_start(priv, &ssid_bssid))
1053 return -EFAULT;
1054
1055 if (mode == NL80211_IFTYPE_ADHOC) {
1056 /* Inform the BSS information to kernel, otherwise
1057 * kernel will give a panic after successful assoc */
1058 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1059 return -EFAULT;
1060 }
1061
1062 return ret;
1063 }
1064
1065 /*
1066 * CFG802.11 operation handler for association request.
1067 *
1068 * This function does not work when the current mode is set to Ad-Hoc, or
1069 * when there is already an association procedure going on. The given BSS
1070 * information is used to associate.
1071 */
1072 static int
1073 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1074 struct cfg80211_connect_params *sme)
1075 {
1076 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1077 int ret = 0;
1078
1079 if (priv->assoc_request)
1080 return -EBUSY;
1081
1082 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1083 wiphy_err(wiphy, "received infra assoc request "
1084 "when station is in ibss mode\n");
1085 goto done;
1086 }
1087
1088 priv->assoc_request = 1;
1089
1090 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1091 (char *) sme->ssid, sme->bssid);
1092
1093 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1094 priv->bss_mode, sme->channel, sme, 0);
1095
1096 done:
1097 priv->assoc_result = ret;
1098 queue_work(priv->workqueue, &priv->cfg_workqueue);
1099 return ret;
1100 }
1101
1102 /*
1103 * CFG802.11 operation handler to join an IBSS.
1104 *
1105 * This function does not work in any mode other than Ad-Hoc, or if
1106 * a join operation is already in progress.
1107 */
1108 static int
1109 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1110 struct cfg80211_ibss_params *params)
1111 {
1112 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1113 int ret = 0;
1114
1115 if (priv->ibss_join_request)
1116 return -EBUSY;
1117
1118 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1119 wiphy_err(wiphy, "request to join ibss received "
1120 "when station is not in ibss mode\n");
1121 goto done;
1122 }
1123
1124 priv->ibss_join_request = 1;
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 priv->ibss_join_result = ret;
1134 queue_work(priv->workqueue, &priv->cfg_workqueue);
1135 return ret;
1136 }
1137
1138 /*
1139 * CFG802.11 operation handler to leave an IBSS.
1140 *
1141 * This function does not work if a leave operation is
1142 * already in progress.
1143 */
1144 static int
1145 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1146 {
1147 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1148
1149 if (priv->disconnect)
1150 return -EBUSY;
1151
1152 priv->disconnect = 1;
1153
1154 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1155 priv->cfg_bssid);
1156 if (mwifiex_deauthenticate(priv, NULL))
1157 return -EFAULT;
1158
1159 queue_work(priv->workqueue, &priv->cfg_workqueue);
1160
1161 return 0;
1162 }
1163
1164 /*
1165 * CFG802.11 operation handler for scan request.
1166 *
1167 * This function issues a scan request to the firmware based upon
1168 * the user specified scan configuration. On successfull completion,
1169 * it also informs the results.
1170 */
1171 static int
1172 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1173 struct cfg80211_scan_request *request)
1174 {
1175 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1176
1177 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1178
1179 if (priv->scan_request && priv->scan_request != request)
1180 return -EBUSY;
1181
1182 priv->scan_request = request;
1183
1184 queue_work(priv->workqueue, &priv->cfg_workqueue);
1185 return 0;
1186 }
1187
1188 /*
1189 * This function sets up the CFG802.11 specific HT capability fields
1190 * with default values.
1191 *
1192 * The following default values are set -
1193 * - HT Supported = True
1194 * - Maximum AMPDU length factor = 0x3
1195 * - Minimum AMPDU spacing = 0x6
1196 * - HT Capabilities map = IEEE80211_HT_CAP_SUP_WIDTH_20_40 (0x0002)
1197 * - MCS information, Rx mask = 0xff
1198 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1199 */
1200 static void
1201 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1202 struct mwifiex_private *priv)
1203 {
1204 int rx_mcs_supp;
1205 struct ieee80211_mcs_info mcs_set;
1206 u8 *mcs = (u8 *)&mcs_set;
1207 struct mwifiex_adapter *adapter = priv->adapter;
1208
1209 ht_info->ht_supported = true;
1210 ht_info->ampdu_factor = 0x3;
1211 ht_info->ampdu_density = 0x6;
1212
1213 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1214 ht_info->cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1215
1216 rx_mcs_supp = GET_RXMCSSUPP(priv->adapter->hw_dev_mcs_support);
1217 /* Set MCS for 1x1 */
1218 memset(mcs, 0xff, rx_mcs_supp);
1219 /* Clear all the other values */
1220 memset(&mcs[rx_mcs_supp], 0,
1221 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1222 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1223 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1224 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1225 SETHT_MCS32(mcs_set.rx_mask);
1226
1227 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1228
1229 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1230 }
1231
1232 /* station cfg80211 operations */
1233 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1234 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1235 .scan = mwifiex_cfg80211_scan,
1236 .connect = mwifiex_cfg80211_connect,
1237 .disconnect = mwifiex_cfg80211_disconnect,
1238 .get_station = mwifiex_cfg80211_get_station,
1239 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1240 .set_channel = mwifiex_cfg80211_set_channel,
1241 .join_ibss = mwifiex_cfg80211_join_ibss,
1242 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1243 .add_key = mwifiex_cfg80211_add_key,
1244 .del_key = mwifiex_cfg80211_del_key,
1245 .set_default_key = mwifiex_cfg80211_set_default_key,
1246 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1247 .set_tx_power = mwifiex_cfg80211_set_tx_power,
1248 };
1249
1250 /*
1251 * This function registers the device with CFG802.11 subsystem.
1252 *
1253 * The function creates the wireless device/wiphy, populates it with
1254 * default parameters and handler function pointers, and finally
1255 * registers the device.
1256 */
1257 int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
1258 struct mwifiex_private *priv)
1259 {
1260 int ret = 0;
1261 void *wdev_priv = NULL;
1262 struct wireless_dev *wdev;
1263
1264 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1265 if (!wdev) {
1266 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1267 __func__);
1268 return -ENOMEM;
1269 }
1270 wdev->wiphy =
1271 wiphy_new(&mwifiex_cfg80211_ops,
1272 sizeof(struct mwifiex_private *));
1273 if (!wdev->wiphy)
1274 return -ENOMEM;
1275 wdev->iftype = NL80211_IFTYPE_STATION;
1276 wdev->wiphy->max_scan_ssids = 10;
1277 wdev->wiphy->interface_modes =
1278 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
1279 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1280 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1281
1282 /* Initialize cipher suits */
1283 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1284 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1285
1286 /* Initialize parameters for 2GHz band */
1287
1288 mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap,
1289 priv);
1290 mwifiex_setup_ht_caps(&wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap,
1291 priv);
1292
1293 memcpy(wdev->wiphy->perm_addr, mac, 6);
1294 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1295
1296 /* We are using custom domains */
1297 wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1298
1299 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1300
1301 /* Set struct mwifiex_private pointer in wiphy_priv */
1302 wdev_priv = wiphy_priv(wdev->wiphy);
1303
1304 *(unsigned long *) wdev_priv = (unsigned long) priv;
1305
1306 ret = wiphy_register(wdev->wiphy);
1307 if (ret < 0) {
1308 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1309 __func__);
1310 wiphy_free(wdev->wiphy);
1311 return ret;
1312 } else {
1313 dev_dbg(priv->adapter->dev,
1314 "info: successfully registered wiphy device\n");
1315 }
1316
1317 dev_net_set(dev, wiphy_net(wdev->wiphy));
1318 dev->ieee80211_ptr = wdev;
1319 memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
1320 memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
1321 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
1322 priv->wdev = wdev;
1323
1324 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1325 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1326 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1327
1328 return ret;
1329 }
1330
1331 /*
1332 * This function handles the result of different pending network operations.
1333 *
1334 * The following operations are handled and CFG802.11 subsystem is
1335 * notified accordingly -
1336 * - Scan request completion
1337 * - Association request completion
1338 * - IBSS join request completion
1339 * - Disconnect request completion
1340 */
1341 void
1342 mwifiex_cfg80211_results(struct work_struct *work)
1343 {
1344 struct mwifiex_private *priv =
1345 container_of(work, struct mwifiex_private, cfg_workqueue);
1346 struct mwifiex_user_scan_cfg *scan_req;
1347 int ret = 0, i;
1348 struct ieee80211_channel *chan;
1349
1350 if (priv->scan_request) {
1351 scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1352 GFP_KERNEL);
1353 if (!scan_req) {
1354 dev_err(priv->adapter->dev, "failed to alloc "
1355 "scan_req\n");
1356 return;
1357 }
1358 for (i = 0; i < priv->scan_request->n_ssids; i++) {
1359 memcpy(scan_req->ssid_list[i].ssid,
1360 priv->scan_request->ssids[i].ssid,
1361 priv->scan_request->ssids[i].ssid_len);
1362 scan_req->ssid_list[i].max_len =
1363 priv->scan_request->ssids[i].ssid_len;
1364 }
1365 for (i = 0; i < priv->scan_request->n_channels; i++) {
1366 chan = priv->scan_request->channels[i];
1367 scan_req->chan_list[i].chan_number = chan->hw_value;
1368 scan_req->chan_list[i].radio_type = chan->band;
1369 if (chan->flags & IEEE80211_CHAN_DISABLED)
1370 scan_req->chan_list[i].scan_type =
1371 MWIFIEX_SCAN_TYPE_PASSIVE;
1372 else
1373 scan_req->chan_list[i].scan_type =
1374 MWIFIEX_SCAN_TYPE_ACTIVE;
1375 scan_req->chan_list[i].scan_time = 0;
1376 }
1377 if (mwifiex_set_user_scan_ioctl(priv, scan_req)) {
1378 ret = -EFAULT;
1379 goto done;
1380 }
1381 if (mwifiex_inform_bss_from_scan_result(priv, NULL))
1382 ret = -EFAULT;
1383 done:
1384 priv->scan_result_status = ret;
1385 dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
1386 __func__);
1387 cfg80211_scan_done(priv->scan_request,
1388 (priv->scan_result_status < 0));
1389 priv->scan_request = NULL;
1390 kfree(scan_req);
1391 }
1392
1393 if (priv->assoc_request) {
1394 if (!priv->assoc_result) {
1395 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1396 NULL, 0, NULL, 0,
1397 WLAN_STATUS_SUCCESS,
1398 GFP_KERNEL);
1399 dev_dbg(priv->adapter->dev,
1400 "info: associated to bssid %pM successfully\n",
1401 priv->cfg_bssid);
1402 } else {
1403 dev_dbg(priv->adapter->dev,
1404 "info: association to bssid %pM failed\n",
1405 priv->cfg_bssid);
1406 memset(priv->cfg_bssid, 0, ETH_ALEN);
1407 }
1408 priv->assoc_request = 0;
1409 priv->assoc_result = 0;
1410 }
1411
1412 if (priv->ibss_join_request) {
1413 if (!priv->ibss_join_result) {
1414 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1415 GFP_KERNEL);
1416 dev_dbg(priv->adapter->dev,
1417 "info: joined/created adhoc network with bssid"
1418 " %pM successfully\n", priv->cfg_bssid);
1419 } else {
1420 dev_dbg(priv->adapter->dev,
1421 "info: failed creating/joining adhoc network\n");
1422 }
1423 priv->ibss_join_request = 0;
1424 priv->ibss_join_result = 0;
1425 }
1426
1427 if (priv->disconnect) {
1428 memset(priv->cfg_bssid, 0, ETH_ALEN);
1429 priv->disconnect = 0;
1430 }
1431 }
Linux kernel - Deliverables
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