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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / net / wireless / mwifiex / cfg80211.c
blob6fd53e4e3fe646248036a082893cd6a8991ac51b
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 switch (channel_type) {
38 case NL80211_CHAN_NO_HT:
39 case NL80211_CHAN_HT20:
40 return NO_SEC_CHANNEL;
41 case NL80211_CHAN_HT40PLUS:
42 return SEC_CHANNEL_ABOVE;
43 case NL80211_CHAN_HT40MINUS:
44 return SEC_CHANNEL_BELOW;
45 default:
46 return NO_SEC_CHANNEL;
47 }
48 }
49
50 /*
51 * This function maps the driver channel type into nl802.11 channel type.
52 *
53 * The mapping is as follows -
54 * NO_SEC_CHANNEL -> NL80211_CHAN_HT20
55 * SEC_CHANNEL_ABOVE -> NL80211_CHAN_HT40PLUS
56 * SEC_CHANNEL_BELOW -> NL80211_CHAN_HT40MINUS
57 * Others -> NL80211_CHAN_HT20
58 */
59 static enum nl80211_channel_type
60 mwifiex_channels_to_cfg80211_channel_type(int channel_type)
61 {
62 switch (channel_type) {
63 case NO_SEC_CHANNEL:
64 return NL80211_CHAN_HT20;
65 case SEC_CHANNEL_ABOVE:
66 return NL80211_CHAN_HT40PLUS;
67 case SEC_CHANNEL_BELOW:
68 return NL80211_CHAN_HT40MINUS;
69 default:
70 return NL80211_CHAN_HT20;
71 }
72 }
73
74 /*
75 * This function checks whether WEP is set.
76 */
77 static int
78 mwifiex_is_alg_wep(u32 cipher)
79 {
80 switch (cipher) {
81 case WLAN_CIPHER_SUITE_WEP40:
82 case WLAN_CIPHER_SUITE_WEP104:
83 return 1;
84 default:
85 break;
86 }
87
88 return 0;
89 }
90
91 /*
92 * This function retrieves the private structure from kernel wiphy structure.
93 */
94 static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
95 {
96 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
97 }
98
99 /*
100 * CFG802.11 operation handler to delete a network key.
101 */
102 static int
103 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
104 u8 key_index, bool pairwise, const u8 *mac_addr)
105 {
106 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
107
108 if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
109 wiphy_err(wiphy, "deleting the crypto keys\n");
110 return -EFAULT;
111 }
112
113 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
114 return 0;
115 }
116
117 /*
118 * CFG802.11 operation handler to set Tx power.
119 */
120 static int
121 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
122 enum nl80211_tx_power_setting type,
123 int dbm)
124 {
125 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
126 struct mwifiex_power_cfg power_cfg;
127
128 if (type == NL80211_TX_POWER_FIXED) {
129 power_cfg.is_power_auto = 0;
130 power_cfg.power_level = dbm;
131 } else {
132 power_cfg.is_power_auto = 1;
133 }
134
135 return mwifiex_set_tx_power(priv, &power_cfg);
136 }
137
138 /*
139 * CFG802.11 operation handler to set Power Save option.
140 *
141 * The timeout value, if provided, is currently ignored.
142 */
143 static int
144 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
145 struct net_device *dev,
146 bool enabled, int timeout)
147 {
148 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
149 u32 ps_mode;
150
151 if (timeout)
152 wiphy_dbg(wiphy,
153 "info: ignoring the timeout value"
154 " for IEEE power save\n");
155
156 ps_mode = enabled;
157
158 return mwifiex_drv_set_power(priv, &ps_mode);
159 }
160
161 /*
162 * CFG802.11 operation handler to set the default network key.
163 */
164 static int
165 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
166 u8 key_index, bool unicast,
167 bool multicast)
168 {
169 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
170
171 /* Return if WEP key not configured */
172 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_DISABLED)
173 return 0;
174
175 if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
176 wiphy_err(wiphy, "set default Tx key index\n");
177 return -EFAULT;
178 }
179
180 return 0;
181 }
182
183 /*
184 * CFG802.11 operation handler to add a network key.
185 */
186 static int
187 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
188 u8 key_index, bool pairwise, const u8 *mac_addr,
189 struct key_params *params)
190 {
191 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
192
193 if (mwifiex_set_encode(priv, params->key, params->key_len,
194 key_index, 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_private *priv = mwifiex_cfg80211_get_priv(wiphy);
220 struct mwifiex_adapter *adapter = priv->adapter;
221 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
222
223 /* Set country code */
224 domain_info->country_code[0] = priv->country_code[0];
225 domain_info->country_code[1] = priv->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 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
278 HostCmd_ACT_GEN_SET, 0, NULL)) {
279 wiphy_err(wiphy, "11D: setting domain info in FW\n");
280 return -1;
281 }
282
283 return 0;
284 }
285
286 /*
287 * CFG802.11 regulatory domain callback function.
288 *
289 * This function is called when the regulatory domain is changed due to the
290 * following reasons -
291 * - Set by driver
292 * - Set by system core
293 * - Set by user
294 * - Set bt Country IE
295 */
296 static int mwifiex_reg_notifier(struct wiphy *wiphy,
297 struct regulatory_request *request)
298 {
299 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
300
301 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
302 " %c%c\n", request->alpha2[0], request->alpha2[1]);
303
304 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
305
306 switch (request->initiator) {
307 case NL80211_REGDOM_SET_BY_DRIVER:
308 case NL80211_REGDOM_SET_BY_CORE:
309 case NL80211_REGDOM_SET_BY_USER:
310 break;
311 /* Todo: apply driver specific changes in channel flags based
312 on the request initiator if necessary. */
313 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
314 break;
315 }
316 mwifiex_send_domain_info_cmd_fw(wiphy);
317
318 return 0;
319 }
320
321 /*
322 * This function sets the RF channel.
323 *
324 * This function creates multiple IOCTL requests, populates them accordingly
325 * and issues them to set the band/channel and frequency.
326 */
327 static int
328 mwifiex_set_rf_channel(struct mwifiex_private *priv,
329 struct ieee80211_channel *chan,
330 enum nl80211_channel_type channel_type)
331 {
332 struct mwifiex_chan_freq_power cfp;
333 struct mwifiex_ds_band_cfg band_cfg;
334 u32 config_bands = 0;
335 struct wiphy *wiphy = priv->wdev->wiphy;
336
337 if (chan) {
338 memset(&band_cfg, 0, sizeof(band_cfg));
339 /* Set appropriate bands */
340 if (chan->band == IEEE80211_BAND_2GHZ)
341 config_bands = BAND_B | BAND_G | BAND_GN;
342 else
343 config_bands = BAND_AN | BAND_A;
344 if (priv->bss_mode == NL80211_IFTYPE_STATION
345 || priv->bss_mode == NL80211_IFTYPE_UNSPECIFIED) {
346 band_cfg.config_bands = config_bands;
347 } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
348 band_cfg.config_bands = config_bands;
349 band_cfg.adhoc_start_band = config_bands;
350 }
351
352 band_cfg.sec_chan_offset =
353 mwifiex_cfg80211_channel_type_to_mwifiex_channels
354 (channel_type);
355
356 if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
357 return -EFAULT;
358
359 mwifiex_send_domain_info_cmd_fw(wiphy);
360 }
361
362 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
363 "mode %d\n", config_bands, band_cfg.sec_chan_offset,
364 priv->bss_mode);
365 if (!chan)
366 return 0;
367
368 memset(&cfp, 0, sizeof(cfp));
369 cfp.freq = chan->center_freq;
370 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
371
372 if (mwifiex_bss_set_channel(priv, &cfp))
373 return -EFAULT;
374
375 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
376 }
377
378 /*
379 * CFG802.11 operation handler to set channel.
380 *
381 * This function can only be used when station is not connected.
382 */
383 static int
384 mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
385 struct ieee80211_channel *chan,
386 enum nl80211_channel_type channel_type)
387 {
388 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
389
390 if (priv->media_connected) {
391 wiphy_err(wiphy, "This setting is valid only when station "
392 "is not connected\n");
393 return -EINVAL;
394 }
395
396 return mwifiex_set_rf_channel(priv, chan, channel_type);
397 }
398
399 /*
400 * This function sets the fragmentation threshold.
401 *
402 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
403 * and MWIFIEX_FRAG_MAX_VALUE.
404 */
405 static int
406 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
407 {
408 int ret;
409
410 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
411 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
412 return -EINVAL;
413
414 /* Send request to firmware */
415 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
416 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
417 &frag_thr);
418
419 return ret;
420 }
421
422 /*
423 * This function sets the RTS threshold.
424
425 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
426 * and MWIFIEX_RTS_MAX_VALUE.
427 */
428 static int
429 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
430 {
431 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
432 rts_thr = MWIFIEX_RTS_MAX_VALUE;
433
434 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
435 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
436 &rts_thr);
437 }
438
439 /*
440 * CFG802.11 operation handler to set wiphy parameters.
441 *
442 * This function can be used to set the RTS threshold and the
443 * Fragmentation threshold of the driver.
444 */
445 static int
446 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
447 {
448 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
449 int ret = 0;
450
451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
452 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
453 if (ret)
454 return ret;
455 }
456
457 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
458 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
459
460 return ret;
461 }
462
463 /*
464 * CFG802.11 operation handler to change interface type.
465 */
466 static int
467 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
468 struct net_device *dev,
469 enum nl80211_iftype type, u32 *flags,
470 struct vif_params *params)
471 {
472 int ret;
473 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
474
475 if (priv->bss_mode == type) {
476 wiphy_warn(wiphy, "already set to required type\n");
477 return 0;
478 }
479
480 priv->bss_mode = type;
481
482 switch (type) {
483 case NL80211_IFTYPE_ADHOC:
484 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
485 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
486 break;
487 case NL80211_IFTYPE_STATION:
488 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
489 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
490 break;
491 case NL80211_IFTYPE_UNSPECIFIED:
492 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
493 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
494 return 0;
495 default:
496 wiphy_err(wiphy, "unknown interface type: %d\n", type);
497 return -EINVAL;
498 }
499
500 mwifiex_deauthenticate(priv, NULL);
501
502 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
503
504 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
505 HostCmd_ACT_GEN_SET, 0, NULL);
506
507 return ret;
508 }
509
510 /*
511 * This function dumps the station information on a buffer.
512 *
513 * The following information are shown -
514 * - Total bytes transmitted
515 * - Total bytes received
516 * - Total packets transmitted
517 * - Total packets received
518 * - Signal quality level
519 * - Transmission rate
520 */
521 static int
522 mwifiex_dump_station_info(struct mwifiex_private *priv,
523 struct station_info *sinfo)
524 {
525 struct mwifiex_ds_get_signal signal;
526 struct mwifiex_rate_cfg rate;
527 int ret = 0;
528
529 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
530 STATION_INFO_RX_PACKETS |
531 STATION_INFO_TX_PACKETS
532 | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
533
534 /* Get signal information from the firmware */
535 memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
536 if (mwifiex_get_signal_info(priv, &signal)) {
537 dev_err(priv->adapter->dev, "getting signal information\n");
538 ret = -EFAULT;
539 }
540
541 if (mwifiex_drv_get_data_rate(priv, &rate)) {
542 dev_err(priv->adapter->dev, "getting data rate\n");
543 ret = -EFAULT;
544 }
545
546 sinfo->rx_bytes = priv->stats.rx_bytes;
547 sinfo->tx_bytes = priv->stats.tx_bytes;
548 sinfo->rx_packets = priv->stats.rx_packets;
549 sinfo->tx_packets = priv->stats.tx_packets;
550 sinfo->signal = priv->qual_level;
551 sinfo->txrate.legacy = rate.rate;
552
553 return ret;
554 }
555
556 /*
557 * CFG802.11 operation handler to get station information.
558 *
559 * This function only works in connected mode, and dumps the
560 * requested station information, if available.
561 */
562 static int
563 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
564 u8 *mac, struct station_info *sinfo)
565 {
566 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
567
568 mwifiex_dump_station_info(priv, sinfo);
569
570 if (!priv->media_connected)
571 return -ENOENT;
572 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
573 return -ENOENT;
574
575 return mwifiex_dump_station_info(priv, sinfo);
576 }
577
578 /* Supported rates to be advertised to the cfg80211 */
579
580 static struct ieee80211_rate mwifiex_rates[] = {
581 {.bitrate = 10, .hw_value = 2, },
582 {.bitrate = 20, .hw_value = 4, },
583 {.bitrate = 55, .hw_value = 11, },
584 {.bitrate = 110, .hw_value = 22, },
585 {.bitrate = 220, .hw_value = 44, },
586 {.bitrate = 60, .hw_value = 12, },
587 {.bitrate = 90, .hw_value = 18, },
588 {.bitrate = 120, .hw_value = 24, },
589 {.bitrate = 180, .hw_value = 36, },
590 {.bitrate = 240, .hw_value = 48, },
591 {.bitrate = 360, .hw_value = 72, },
592 {.bitrate = 480, .hw_value = 96, },
593 {.bitrate = 540, .hw_value = 108, },
594 {.bitrate = 720, .hw_value = 144, },
595 };
596
597 /* Channel definitions to be advertised to cfg80211 */
598
599 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
600 {.center_freq = 2412, .hw_value = 1, },
601 {.center_freq = 2417, .hw_value = 2, },
602 {.center_freq = 2422, .hw_value = 3, },
603 {.center_freq = 2427, .hw_value = 4, },
604 {.center_freq = 2432, .hw_value = 5, },
605 {.center_freq = 2437, .hw_value = 6, },
606 {.center_freq = 2442, .hw_value = 7, },
607 {.center_freq = 2447, .hw_value = 8, },
608 {.center_freq = 2452, .hw_value = 9, },
609 {.center_freq = 2457, .hw_value = 10, },
610 {.center_freq = 2462, .hw_value = 11, },
611 {.center_freq = 2467, .hw_value = 12, },
612 {.center_freq = 2472, .hw_value = 13, },
613 {.center_freq = 2484, .hw_value = 14, },
614 };
615
616 static struct ieee80211_supported_band mwifiex_band_2ghz = {
617 .channels = mwifiex_channels_2ghz,
618 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
619 .bitrates = mwifiex_rates,
620 .n_bitrates = 14,
621 };
622
623 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
624 {.center_freq = 5040, .hw_value = 8, },
625 {.center_freq = 5060, .hw_value = 12, },
626 {.center_freq = 5080, .hw_value = 16, },
627 {.center_freq = 5170, .hw_value = 34, },
628 {.center_freq = 5190, .hw_value = 38, },
629 {.center_freq = 5210, .hw_value = 42, },
630 {.center_freq = 5230, .hw_value = 46, },
631 {.center_freq = 5180, .hw_value = 36, },
632 {.center_freq = 5200, .hw_value = 40, },
633 {.center_freq = 5220, .hw_value = 44, },
634 {.center_freq = 5240, .hw_value = 48, },
635 {.center_freq = 5260, .hw_value = 52, },
636 {.center_freq = 5280, .hw_value = 56, },
637 {.center_freq = 5300, .hw_value = 60, },
638 {.center_freq = 5320, .hw_value = 64, },
639 {.center_freq = 5500, .hw_value = 100, },
640 {.center_freq = 5520, .hw_value = 104, },
641 {.center_freq = 5540, .hw_value = 108, },
642 {.center_freq = 5560, .hw_value = 112, },
643 {.center_freq = 5580, .hw_value = 116, },
644 {.center_freq = 5600, .hw_value = 120, },
645 {.center_freq = 5620, .hw_value = 124, },
646 {.center_freq = 5640, .hw_value = 128, },
647 {.center_freq = 5660, .hw_value = 132, },
648 {.center_freq = 5680, .hw_value = 136, },
649 {.center_freq = 5700, .hw_value = 140, },
650 {.center_freq = 5745, .hw_value = 149, },
651 {.center_freq = 5765, .hw_value = 153, },
652 {.center_freq = 5785, .hw_value = 157, },
653 {.center_freq = 5805, .hw_value = 161, },
654 {.center_freq = 5825, .hw_value = 165, },
655 };
656
657 static struct ieee80211_supported_band mwifiex_band_5ghz = {
658 .channels = mwifiex_channels_5ghz,
659 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
660 .bitrates = mwifiex_rates - 4,
661 .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
662 };
663
664
665 /* Supported crypto cipher suits to be advertised to cfg80211 */
666
667 static const u32 mwifiex_cipher_suites[] = {
668 WLAN_CIPHER_SUITE_WEP40,
669 WLAN_CIPHER_SUITE_WEP104,
670 WLAN_CIPHER_SUITE_TKIP,
671 WLAN_CIPHER_SUITE_CCMP,
672 };
673
674 /*
675 * CFG802.11 operation handler for setting bit rates.
676 *
677 * Function selects legacy bang B/G/BG from corresponding bitrates selection.
678 * Currently only 2.4GHz band is supported.
679 */
680 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
681 struct net_device *dev,
682 const u8 *peer,
683 const struct cfg80211_bitrate_mask *mask)
684 {
685 struct mwifiex_ds_band_cfg band_cfg;
686 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
687 int index = 0, mode = 0, i;
688
689 /* Currently only 2.4GHz is supported */
690 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
691 /*
692 * Rates below 6 Mbps in the table are CCK rates; 802.11b
693 * and from 6 they are OFDM; 802.11G
694 */
695 if (mwifiex_rates[i].bitrate == 60) {
696 index = 1 << i;
697 break;
698 }
699 }
700
701 if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
702 mode = BAND_B;
703 } else {
704 mode = BAND_G;
705 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
706 mode |= BAND_B;
707 }
708
709 memset(&band_cfg, 0, sizeof(band_cfg));
710 band_cfg.config_bands = mode;
711
712 if (priv->bss_mode == NL80211_IFTYPE_ADHOC)
713 band_cfg.adhoc_start_band = mode;
714
715 band_cfg.sec_chan_offset = NO_SEC_CHANNEL;
716
717 if (mwifiex_set_radio_band_cfg(priv, &band_cfg))
718 return -EFAULT;
719
720 wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
721 (mode & BAND_B) ? "b" : "",
722 (mode & BAND_G) ? "g" : "");
723
724 return 0;
725 }
726
727 /*
728 * CFG802.11 operation handler for disconnection request.
729 *
730 * This function does not work when there is already a disconnection
731 * procedure going on.
732 */
733 static int
734 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
735 u16 reason_code)
736 {
737 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
738
739 if (priv->disconnect)
740 return -EBUSY;
741
742 priv->disconnect = 1;
743 if (mwifiex_deauthenticate(priv, NULL))
744 return -EFAULT;
745
746 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
747 " reason code %d\n", priv->cfg_bssid, reason_code);
748
749 queue_work(priv->workqueue, &priv->cfg_workqueue);
750
751 return 0;
752 }
753
754 /*
755 * This function informs the CFG802.11 subsystem of a new IBSS.
756 *
757 * The following information are sent to the CFG802.11 subsystem
758 * to register the new IBSS. If we do not register the new IBSS,
759 * a kernel panic will result.
760 * - SSID
761 * - SSID length
762 * - BSSID
763 * - Channel
764 */
765 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
766 {
767 struct ieee80211_channel *chan;
768 struct mwifiex_bss_info bss_info;
769 int ie_len;
770 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
771
772 if (mwifiex_get_bss_info(priv, &bss_info))
773 return -1;
774
775 ie_buf[0] = WLAN_EID_SSID;
776 ie_buf[1] = bss_info.ssid.ssid_len;
777
778 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
779 &bss_info.ssid.ssid,
780 bss_info.ssid.ssid_len);
781 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
782
783 chan = __ieee80211_get_channel(priv->wdev->wiphy,
784 ieee80211_channel_to_frequency(bss_info.bss_chan,
785 priv->curr_bss_params.band));
786
787 cfg80211_inform_bss(priv->wdev->wiphy, chan,
788 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
789 0, ie_buf, ie_len, 0, GFP_KERNEL);
790 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
791
792 return 0;
793 }
794
795 /*
796 * This function connects with a BSS.
797 *
798 * This function handles both Infra and Ad-Hoc modes. It also performs
799 * validity checking on the provided parameters, disconnects from the
800 * current BSS (if any), sets up the association/scan parameters,
801 * including security settings, and performs specific SSID scan before
802 * trying to connect.
803 *
804 * For Infra mode, the function returns failure if the specified SSID
805 * is not found in scan table. However, for Ad-Hoc mode, it can create
806 * the IBSS if it does not exist. On successful completion in either case,
807 * the function notifies the CFG802.11 subsystem of the new BSS connection.
808 */
809 static int
810 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
811 u8 *bssid, int mode, struct ieee80211_channel *channel,
812 struct cfg80211_connect_params *sme, bool privacy)
813 {
814 struct mwifiex_802_11_ssid req_ssid;
815 int ret, auth_type = 0;
816 struct cfg80211_bss *bss = NULL;
817 u8 is_scanning_required = 0;
818
819 memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
820
821 req_ssid.ssid_len = ssid_len;
822 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
823 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
824 return -EINVAL;
825 }
826
827 memcpy(req_ssid.ssid, ssid, ssid_len);
828 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
829 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
830 return -EINVAL;
831 }
832
833 /* disconnect before try to associate */
834 mwifiex_deauthenticate(priv, NULL);
835
836 if (channel)
837 ret = mwifiex_set_rf_channel(priv, channel,
838 mwifiex_channels_to_cfg80211_channel_type
839 (priv->adapter->chan_offset));
840
841 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1); /* Disable keys */
842
843 if (mode == NL80211_IFTYPE_ADHOC) {
844 /* "privacy" is set only for ad-hoc mode */
845 if (privacy) {
846 /*
847 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
848 * the firmware can find a matching network from the
849 * scan. The cfg80211 does not give us the encryption
850 * mode at this stage so just setting it to WEP here.
851 */
852 priv->sec_info.encryption_mode =
853 WLAN_CIPHER_SUITE_WEP104;
854 priv->sec_info.authentication_mode =
855 NL80211_AUTHTYPE_OPEN_SYSTEM;
856 }
857
858 goto done;
859 }
860
861 /* Now handle infra mode. "sme" is valid for infra mode only */
862 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC
863 || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
864 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
865 else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
866 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
867
868 if (sme->crypto.n_ciphers_pairwise) {
869 priv->sec_info.encryption_mode =
870 sme->crypto.ciphers_pairwise[0];
871 priv->sec_info.authentication_mode = auth_type;
872 }
873
874 if (sme->crypto.cipher_group) {
875 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
876 priv->sec_info.authentication_mode = auth_type;
877 }
878 if (sme->ie)
879 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
880
881 if (sme->key) {
882 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
883 dev_dbg(priv->adapter->dev,
884 "info: setting wep encryption"
885 " with key len %d\n", sme->key_len);
886 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
887 sme->key_idx, 0);
888 }
889 }
890 done:
891 /* Do specific SSID scanning */
892 if (mwifiex_request_scan(priv, &req_ssid)) {
893 dev_err(priv->adapter->dev, "scan error\n");
894 return -EFAULT;
895 }
896
897 /*
898 * Scan entries are valid for some time (15 sec). So we can save one
899 * active scan time if we just try cfg80211_get_bss first. If it fails
900 * then request scan and cfg80211_get_bss() again for final output.
901 */
902 while (1) {
903 if (is_scanning_required) {
904 /* Do specific SSID scanning */
905 if (mwifiex_request_scan(priv, &req_ssid)) {
906 dev_err(priv->adapter->dev, "scan error\n");
907 return -EFAULT;
908 }
909 }
910
911 /* Find the BSS we want using available scan results */
912 if (mode == NL80211_IFTYPE_ADHOC)
913 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
914 bssid, ssid, ssid_len,
915 WLAN_CAPABILITY_IBSS,
916 WLAN_CAPABILITY_IBSS);
917 else
918 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
919 bssid, ssid, ssid_len,
920 WLAN_CAPABILITY_ESS,
921 WLAN_CAPABILITY_ESS);
922
923 if (!bss) {
924 if (is_scanning_required) {
925 dev_warn(priv->adapter->dev, "assoc: requested "
926 "bss not found in scan results\n");
927 break;
928 }
929 is_scanning_required = 1;
930 } else {
931 dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
932 (char *) req_ssid.ssid, bss->bssid);
933 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
934 break;
935 }
936 }
937
938 if (mwifiex_bss_start(priv, bss, &req_ssid))
939 return -EFAULT;
940
941 if (mode == NL80211_IFTYPE_ADHOC) {
942 /* Inform the BSS information to kernel, otherwise
943 * kernel will give a panic after successful assoc */
944 if (mwifiex_cfg80211_inform_ibss_bss(priv))
945 return -EFAULT;
946 }
947
948 return ret;
949 }
950
951 /*
952 * CFG802.11 operation handler for association request.
953 *
954 * This function does not work when the current mode is set to Ad-Hoc, or
955 * when there is already an association procedure going on. The given BSS
956 * information is used to associate.
957 */
958 static int
959 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
960 struct cfg80211_connect_params *sme)
961 {
962 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
963 int ret = 0;
964
965 if (priv->assoc_request)
966 return -EBUSY;
967
968 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
969 wiphy_err(wiphy, "received infra assoc request "
970 "when station is in ibss mode\n");
971 goto done;
972 }
973
974 priv->assoc_request = -EINPROGRESS;
975
976 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
977 (char *) sme->ssid, sme->bssid);
978
979 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
980 priv->bss_mode, sme->channel, sme, 0);
981
982 priv->assoc_request = 1;
983 done:
984 priv->assoc_result = ret;
985 queue_work(priv->workqueue, &priv->cfg_workqueue);
986 return ret;
987 }
988
989 /*
990 * CFG802.11 operation handler to join an IBSS.
991 *
992 * This function does not work in any mode other than Ad-Hoc, or if
993 * a join operation is already in progress.
994 */
995 static int
996 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
997 struct cfg80211_ibss_params *params)
998 {
999 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1000 int ret = 0;
1001
1002 if (priv->ibss_join_request)
1003 return -EBUSY;
1004
1005 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1006 wiphy_err(wiphy, "request to join ibss received "
1007 "when station is not in ibss mode\n");
1008 goto done;
1009 }
1010
1011 priv->ibss_join_request = -EINPROGRESS;
1012
1013 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1014 (char *) params->ssid, params->bssid);
1015
1016 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1017 params->bssid, priv->bss_mode,
1018 params->channel, NULL, params->privacy);
1019
1020 priv->ibss_join_request = 1;
1021 done:
1022 priv->ibss_join_result = ret;
1023 queue_work(priv->workqueue, &priv->cfg_workqueue);
1024 return ret;
1025 }
1026
1027 /*
1028 * CFG802.11 operation handler to leave an IBSS.
1029 *
1030 * This function does not work if a leave operation is
1031 * already in progress.
1032 */
1033 static int
1034 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1035 {
1036 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1037
1038 if (priv->disconnect)
1039 return -EBUSY;
1040
1041 priv->disconnect = 1;
1042
1043 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1044 priv->cfg_bssid);
1045 if (mwifiex_deauthenticate(priv, NULL))
1046 return -EFAULT;
1047
1048 queue_work(priv->workqueue, &priv->cfg_workqueue);
1049
1050 return 0;
1051 }
1052
1053 /*
1054 * CFG802.11 operation handler for scan request.
1055 *
1056 * This function issues a scan request to the firmware based upon
1057 * the user specified scan configuration. On successfull completion,
1058 * it also informs the results.
1059 */
1060 static int
1061 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1062 struct cfg80211_scan_request *request)
1063 {
1064 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1065
1066 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1067
1068 if (priv->scan_request && priv->scan_request != request)
1069 return -EBUSY;
1070
1071 priv->scan_request = request;
1072
1073 queue_work(priv->workqueue, &priv->cfg_workqueue);
1074 return 0;
1075 }
1076
1077 /*
1078 * This function sets up the CFG802.11 specific HT capability fields
1079 * with default values.
1080 *
1081 * The following default values are set -
1082 * - HT Supported = True
1083 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1084 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1085 * - HT Capabilities supported by firmware
1086 * - MCS information, Rx mask = 0xff
1087 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1088 */
1089 static void
1090 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1091 struct mwifiex_private *priv)
1092 {
1093 int rx_mcs_supp;
1094 struct ieee80211_mcs_info mcs_set;
1095 u8 *mcs = (u8 *)&mcs_set;
1096 struct mwifiex_adapter *adapter = priv->adapter;
1097
1098 ht_info->ht_supported = true;
1099 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1100 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1101
1102 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1103
1104 /* Fill HT capability information */
1105 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1106 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1107 else
1108 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1109
1110 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1111 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1112 else
1113 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1114
1115 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1116 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1117 else
1118 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1119
1120 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1121 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1122 else
1123 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1124
1125 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1126 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1127 else
1128 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1129
1130 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1131 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1132
1133 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1134 /* Set MCS for 1x1 */
1135 memset(mcs, 0xff, rx_mcs_supp);
1136 /* Clear all the other values */
1137 memset(&mcs[rx_mcs_supp], 0,
1138 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1139 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1140 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1141 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1142 SETHT_MCS32(mcs_set.rx_mask);
1143
1144 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1145
1146 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1147 }
1148
1149 /* station cfg80211 operations */
1150 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1151 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1152 .scan = mwifiex_cfg80211_scan,
1153 .connect = mwifiex_cfg80211_connect,
1154 .disconnect = mwifiex_cfg80211_disconnect,
1155 .get_station = mwifiex_cfg80211_get_station,
1156 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1157 .set_channel = mwifiex_cfg80211_set_channel,
1158 .join_ibss = mwifiex_cfg80211_join_ibss,
1159 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1160 .add_key = mwifiex_cfg80211_add_key,
1161 .del_key = mwifiex_cfg80211_del_key,
1162 .set_default_key = mwifiex_cfg80211_set_default_key,
1163 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1164 .set_tx_power = mwifiex_cfg80211_set_tx_power,
1165 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1166 };
1167
1168 /*
1169 * This function registers the device with CFG802.11 subsystem.
1170 *
1171 * The function creates the wireless device/wiphy, populates it with
1172 * default parameters and handler function pointers, and finally
1173 * registers the device.
1174 */
1175 int mwifiex_register_cfg80211(struct net_device *dev, u8 *mac,
1176 struct mwifiex_private *priv)
1177 {
1178 int ret;
1179 void *wdev_priv;
1180 struct wireless_dev *wdev;
1181
1182 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1183 if (!wdev) {
1184 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1185 __func__);
1186 return -ENOMEM;
1187 }
1188 wdev->wiphy =
1189 wiphy_new(&mwifiex_cfg80211_ops,
1190 sizeof(struct mwifiex_private *));
1191 if (!wdev->wiphy) {
1192 kfree(wdev);
1193 return -ENOMEM;
1194 }
1195 wdev->iftype = NL80211_IFTYPE_STATION;
1196 wdev->wiphy->max_scan_ssids = 10;
1197 wdev->wiphy->interface_modes =
1198 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
1199
1200 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1201 mwifiex_setup_ht_caps(
1202 &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1203
1204 if (priv->adapter->config_bands & BAND_A) {
1205 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1206 mwifiex_setup_ht_caps(
1207 &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1208 } else {
1209 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1210 }
1211
1212 /* Initialize cipher suits */
1213 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1214 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1215
1216 memcpy(wdev->wiphy->perm_addr, mac, 6);
1217 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1218
1219 /* We are using custom domains */
1220 wdev->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
1221
1222 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1223
1224 /* Set struct mwifiex_private pointer in wiphy_priv */
1225 wdev_priv = wiphy_priv(wdev->wiphy);
1226
1227 *(unsigned long *) wdev_priv = (unsigned long) priv;
1228
1229 set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1230
1231 ret = wiphy_register(wdev->wiphy);
1232 if (ret < 0) {
1233 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1234 __func__);
1235 wiphy_free(wdev->wiphy);
1236 kfree(wdev);
1237 return ret;
1238 } else {
1239 dev_dbg(priv->adapter->dev,
1240 "info: successfully registered wiphy device\n");
1241 }
1242
1243 dev_net_set(dev, wiphy_net(wdev->wiphy));
1244 dev->ieee80211_ptr = wdev;
1245 memcpy(dev->dev_addr, wdev->wiphy->perm_addr, 6);
1246 memcpy(dev->perm_addr, wdev->wiphy->perm_addr, 6);
1247 SET_NETDEV_DEV(dev, wiphy_dev(wdev->wiphy));
1248 priv->wdev = wdev;
1249
1250 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1251 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1252 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1253
1254 return ret;
1255 }
1256
1257 /*
1258 * This function handles the result of different pending network operations.
1259 *
1260 * The following operations are handled and CFG802.11 subsystem is
1261 * notified accordingly -
1262 * - Scan request completion
1263 * - Association request completion
1264 * - IBSS join request completion
1265 * - Disconnect request completion
1266 */
1267 void
1268 mwifiex_cfg80211_results(struct work_struct *work)
1269 {
1270 struct mwifiex_private *priv =
1271 container_of(work, struct mwifiex_private, cfg_workqueue);
1272 struct mwifiex_user_scan_cfg *scan_req;
1273 int ret = 0, i;
1274 struct ieee80211_channel *chan;
1275
1276 if (priv->scan_request) {
1277 scan_req = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1278 GFP_KERNEL);
1279 if (!scan_req) {
1280 dev_err(priv->adapter->dev, "failed to alloc "
1281 "scan_req\n");
1282 return;
1283 }
1284 for (i = 0; i < priv->scan_request->n_ssids; i++) {
1285 memcpy(scan_req->ssid_list[i].ssid,
1286 priv->scan_request->ssids[i].ssid,
1287 priv->scan_request->ssids[i].ssid_len);
1288 scan_req->ssid_list[i].max_len =
1289 priv->scan_request->ssids[i].ssid_len;
1290 }
1291 for (i = 0; i < priv->scan_request->n_channels; i++) {
1292 chan = priv->scan_request->channels[i];
1293 scan_req->chan_list[i].chan_number = chan->hw_value;
1294 scan_req->chan_list[i].radio_type = chan->band;
1295 if (chan->flags & IEEE80211_CHAN_DISABLED)
1296 scan_req->chan_list[i].scan_type =
1297 MWIFIEX_SCAN_TYPE_PASSIVE;
1298 else
1299 scan_req->chan_list[i].scan_type =
1300 MWIFIEX_SCAN_TYPE_ACTIVE;
1301 scan_req->chan_list[i].scan_time = 0;
1302 }
1303 if (mwifiex_set_user_scan_ioctl(priv, scan_req))
1304 ret = -EFAULT;
1305 priv->scan_result_status = ret;
1306 dev_dbg(priv->adapter->dev, "info: %s: sending scan results\n",
1307 __func__);
1308 cfg80211_scan_done(priv->scan_request,
1309 (priv->scan_result_status < 0));
1310 priv->scan_request = NULL;
1311 kfree(scan_req);
1312 }
1313
1314 if (priv->assoc_request == 1) {
1315 if (!priv->assoc_result) {
1316 cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1317 NULL, 0, NULL, 0,
1318 WLAN_STATUS_SUCCESS,
1319 GFP_KERNEL);
1320 dev_dbg(priv->adapter->dev,
1321 "info: associated to bssid %pM successfully\n",
1322 priv->cfg_bssid);
1323 } else {
1324 dev_dbg(priv->adapter->dev,
1325 "info: association to bssid %pM failed\n",
1326 priv->cfg_bssid);
1327 memset(priv->cfg_bssid, 0, ETH_ALEN);
1328 }
1329 priv->assoc_request = 0;
1330 priv->assoc_result = 0;
1331 }
1332
1333 if (priv->ibss_join_request == 1) {
1334 if (!priv->ibss_join_result) {
1335 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
1336 GFP_KERNEL);
1337 dev_dbg(priv->adapter->dev,
1338 "info: joined/created adhoc network with bssid"
1339 " %pM successfully\n", priv->cfg_bssid);
1340 } else {
1341 dev_dbg(priv->adapter->dev,
1342 "info: failed creating/joining adhoc network\n");
1343 }
1344 priv->ibss_join_request = 0;
1345 priv->ibss_join_result = 0;
1346 }
1347
1348 if (priv->disconnect) {
1349 memset(priv->cfg_bssid, 0, ETH_ALEN);
1350 priv->disconnect = 0;
1351 }
1352 }
linux-next