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mwifiex: remove unnecessary struct mwifiex_802_11_ssid
[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 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
28 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
29 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
30 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
31 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE
32 */
33 static u8
34 mwifiex_cfg80211_channel_type_to_sec_chan_offset(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 IEEE80211_HT_PARAM_CHA_SEC_NONE;
41 case NL80211_CHAN_HT40PLUS:
42 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
43 case NL80211_CHAN_HT40MINUS:
44 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
45 default:
46 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
47 }
48 }
49
50 /*
51 * This function checks whether WEP is set.
52 */
53 static int
54 mwifiex_is_alg_wep(u32 cipher)
55 {
56 switch (cipher) {
57 case WLAN_CIPHER_SUITE_WEP40:
58 case WLAN_CIPHER_SUITE_WEP104:
59 return 1;
60 default:
61 break;
62 }
63
64 return 0;
65 }
66
67 /*
68 * This function retrieves the private structure from kernel wiphy structure.
69 */
70 static void *mwifiex_cfg80211_get_priv(struct wiphy *wiphy)
71 {
72 return (void *) (*(unsigned long *) wiphy_priv(wiphy));
73 }
74
75 /*
76 * CFG802.11 operation handler to delete a network key.
77 */
78 static int
79 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
80 u8 key_index, bool pairwise, const u8 *mac_addr)
81 {
82 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
83
84 if (mwifiex_set_encode(priv, NULL, 0, key_index, 1)) {
85 wiphy_err(wiphy, "deleting the crypto keys\n");
86 return -EFAULT;
87 }
88
89 wiphy_dbg(wiphy, "info: crypto keys deleted\n");
90 return 0;
91 }
92
93 /*
94 * CFG802.11 operation handler to set Tx power.
95 */
96 static int
97 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
98 enum nl80211_tx_power_setting type,
99 int mbm)
100 {
101 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
102 struct mwifiex_power_cfg power_cfg;
103 int dbm = MBM_TO_DBM(mbm);
104
105 if (type == NL80211_TX_POWER_FIXED) {
106 power_cfg.is_power_auto = 0;
107 power_cfg.power_level = dbm;
108 } else {
109 power_cfg.is_power_auto = 1;
110 }
111
112 return mwifiex_set_tx_power(priv, &power_cfg);
113 }
114
115 /*
116 * CFG802.11 operation handler to set Power Save option.
117 *
118 * The timeout value, if provided, is currently ignored.
119 */
120 static int
121 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
122 struct net_device *dev,
123 bool enabled, int timeout)
124 {
125 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
126 u32 ps_mode;
127
128 if (timeout)
129 wiphy_dbg(wiphy,
130 "info: ignoring the timeout value"
131 " for IEEE power save\n");
132
133 ps_mode = enabled;
134
135 return mwifiex_drv_set_power(priv, &ps_mode);
136 }
137
138 /*
139 * CFG802.11 operation handler to set the default network key.
140 */
141 static int
142 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
143 u8 key_index, bool unicast,
144 bool multicast)
145 {
146 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
147
148 /* Return if WEP key not configured */
149 if (!priv->sec_info.wep_enabled)
150 return 0;
151
152 if (mwifiex_set_encode(priv, NULL, 0, key_index, 0)) {
153 wiphy_err(wiphy, "set default Tx key index\n");
154 return -EFAULT;
155 }
156
157 return 0;
158 }
159
160 /*
161 * CFG802.11 operation handler to add a network key.
162 */
163 static int
164 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
165 u8 key_index, bool pairwise, const u8 *mac_addr,
166 struct key_params *params)
167 {
168 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
169
170 if (mwifiex_set_encode(priv, params->key, params->key_len,
171 key_index, 0)) {
172 wiphy_err(wiphy, "crypto keys added\n");
173 return -EFAULT;
174 }
175
176 return 0;
177 }
178
179 /*
180 * This function sends domain information to the firmware.
181 *
182 * The following information are passed to the firmware -
183 * - Country codes
184 * - Sub bands (first channel, number of channels, maximum Tx power)
185 */
186 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
187 {
188 u8 no_of_triplet = 0;
189 struct ieee80211_country_ie_triplet *t;
190 u8 no_of_parsed_chan = 0;
191 u8 first_chan = 0, next_chan = 0, max_pwr = 0;
192 u8 i, flag = 0;
193 enum ieee80211_band band;
194 struct ieee80211_supported_band *sband;
195 struct ieee80211_channel *ch;
196 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
197 struct mwifiex_adapter *adapter = priv->adapter;
198 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
199
200 /* Set country code */
201 domain_info->country_code[0] = priv->country_code[0];
202 domain_info->country_code[1] = priv->country_code[1];
203 domain_info->country_code[2] = ' ';
204
205 band = mwifiex_band_to_radio_type(adapter->config_bands);
206 if (!wiphy->bands[band]) {
207 wiphy_err(wiphy, "11D: setting domain info in FW\n");
208 return -1;
209 }
210
211 sband = wiphy->bands[band];
212
213 for (i = 0; i < sband->n_channels ; i++) {
214 ch = &sband->channels[i];
215 if (ch->flags & IEEE80211_CHAN_DISABLED)
216 continue;
217
218 if (!flag) {
219 flag = 1;
220 first_chan = (u32) ch->hw_value;
221 next_chan = first_chan;
222 max_pwr = ch->max_power;
223 no_of_parsed_chan = 1;
224 continue;
225 }
226
227 if (ch->hw_value == next_chan + 1 &&
228 ch->max_power == max_pwr) {
229 next_chan++;
230 no_of_parsed_chan++;
231 } else {
232 t = &domain_info->triplet[no_of_triplet];
233 t->chans.first_channel = first_chan;
234 t->chans.num_channels = no_of_parsed_chan;
235 t->chans.max_power = max_pwr;
236 no_of_triplet++;
237 first_chan = (u32) ch->hw_value;
238 next_chan = first_chan;
239 max_pwr = ch->max_power;
240 no_of_parsed_chan = 1;
241 }
242 }
243
244 if (flag) {
245 t = &domain_info->triplet[no_of_triplet];
246 t->chans.first_channel = first_chan;
247 t->chans.num_channels = no_of_parsed_chan;
248 t->chans.max_power = max_pwr;
249 no_of_triplet++;
250 }
251
252 domain_info->no_of_triplet = no_of_triplet;
253
254 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
255 HostCmd_ACT_GEN_SET, 0, NULL)) {
256 wiphy_err(wiphy, "11D: setting domain info in FW\n");
257 return -1;
258 }
259
260 return 0;
261 }
262
263 /*
264 * CFG802.11 regulatory domain callback function.
265 *
266 * This function is called when the regulatory domain is changed due to the
267 * following reasons -
268 * - Set by driver
269 * - Set by system core
270 * - Set by user
271 * - Set bt Country IE
272 */
273 static int mwifiex_reg_notifier(struct wiphy *wiphy,
274 struct regulatory_request *request)
275 {
276 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
277
278 wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for domain"
279 " %c%c\n", request->alpha2[0], request->alpha2[1]);
280
281 memcpy(priv->country_code, request->alpha2, sizeof(request->alpha2));
282
283 switch (request->initiator) {
284 case NL80211_REGDOM_SET_BY_DRIVER:
285 case NL80211_REGDOM_SET_BY_CORE:
286 case NL80211_REGDOM_SET_BY_USER:
287 break;
288 /* Todo: apply driver specific changes in channel flags based
289 on the request initiator if necessary. */
290 case NL80211_REGDOM_SET_BY_COUNTRY_IE:
291 break;
292 }
293 mwifiex_send_domain_info_cmd_fw(wiphy);
294
295 return 0;
296 }
297
298 /*
299 * This function sets the RF channel.
300 *
301 * This function creates multiple IOCTL requests, populates them accordingly
302 * and issues them to set the band/channel and frequency.
303 */
304 static int
305 mwifiex_set_rf_channel(struct mwifiex_private *priv,
306 struct ieee80211_channel *chan,
307 enum nl80211_channel_type channel_type)
308 {
309 struct mwifiex_chan_freq_power cfp;
310 u32 config_bands = 0;
311 struct wiphy *wiphy = priv->wdev->wiphy;
312 struct mwifiex_adapter *adapter = priv->adapter;
313
314 if (chan) {
315 /* Set appropriate bands */
316 if (chan->band == IEEE80211_BAND_2GHZ) {
317 if (channel_type == NL80211_CHAN_NO_HT)
318 if (priv->adapter->config_bands == BAND_B ||
319 priv->adapter->config_bands == BAND_G)
320 config_bands =
321 priv->adapter->config_bands;
322 else
323 config_bands = BAND_B | BAND_G;
324 else
325 config_bands = BAND_B | BAND_G | BAND_GN;
326 } else {
327 if (channel_type == NL80211_CHAN_NO_HT)
328 config_bands = BAND_A;
329 else
330 config_bands = BAND_AN | BAND_A;
331 }
332
333 if (!((config_bands | adapter->fw_bands) &
334 ~adapter->fw_bands)) {
335 adapter->config_bands = config_bands;
336 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
337 adapter->adhoc_start_band = config_bands;
338 if ((config_bands & BAND_GN) ||
339 (config_bands & BAND_AN))
340 adapter->adhoc_11n_enabled = true;
341 else
342 adapter->adhoc_11n_enabled = false;
343 }
344 }
345 adapter->sec_chan_offset =
346 mwifiex_cfg80211_channel_type_to_sec_chan_offset
347 (channel_type);
348 adapter->channel_type = channel_type;
349
350 mwifiex_send_domain_info_cmd_fw(wiphy);
351 }
352
353 wiphy_dbg(wiphy, "info: setting band %d, channel offset %d and "
354 "mode %d\n", config_bands, adapter->sec_chan_offset,
355 priv->bss_mode);
356 if (!chan)
357 return 0;
358
359 memset(&cfp, 0, sizeof(cfp));
360 cfp.freq = chan->center_freq;
361 cfp.channel = ieee80211_frequency_to_channel(chan->center_freq);
362
363 if (mwifiex_bss_set_channel(priv, &cfp))
364 return -EFAULT;
365
366 return mwifiex_drv_change_adhoc_chan(priv, cfp.channel);
367 }
368
369 /*
370 * CFG802.11 operation handler to set channel.
371 *
372 * This function can only be used when station is not connected.
373 */
374 static int
375 mwifiex_cfg80211_set_channel(struct wiphy *wiphy, struct net_device *dev,
376 struct ieee80211_channel *chan,
377 enum nl80211_channel_type channel_type)
378 {
379 struct mwifiex_private *priv;
380
381 if (dev)
382 priv = mwifiex_netdev_get_priv(dev);
383 else
384 priv = mwifiex_cfg80211_get_priv(wiphy);
385
386 if (priv->media_connected) {
387 wiphy_err(wiphy, "This setting is valid only when station "
388 "is not connected\n");
389 return -EINVAL;
390 }
391
392 return mwifiex_set_rf_channel(priv, chan, channel_type);
393 }
394
395 /*
396 * This function sets the fragmentation threshold.
397 *
398 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
399 * and MWIFIEX_FRAG_MAX_VALUE.
400 */
401 static int
402 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
403 {
404 int ret;
405
406 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE
407 || frag_thr > MWIFIEX_FRAG_MAX_VALUE)
408 return -EINVAL;
409
410 /* Send request to firmware */
411 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
412 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
413 &frag_thr);
414
415 return ret;
416 }
417
418 /*
419 * This function sets the RTS threshold.
420
421 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
422 * and MWIFIEX_RTS_MAX_VALUE.
423 */
424 static int
425 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
426 {
427 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
428 rts_thr = MWIFIEX_RTS_MAX_VALUE;
429
430 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
431 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
432 &rts_thr);
433 }
434
435 /*
436 * CFG802.11 operation handler to set wiphy parameters.
437 *
438 * This function can be used to set the RTS threshold and the
439 * Fragmentation threshold of the driver.
440 */
441 static int
442 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
443 {
444 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
445 int ret = 0;
446
447 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
448 ret = mwifiex_set_rts(priv, wiphy->rts_threshold);
449 if (ret)
450 return ret;
451 }
452
453 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
454 ret = mwifiex_set_frag(priv, wiphy->frag_threshold);
455
456 return ret;
457 }
458
459 /*
460 * CFG802.11 operation handler to change interface type.
461 */
462 static int
463 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
464 struct net_device *dev,
465 enum nl80211_iftype type, u32 *flags,
466 struct vif_params *params)
467 {
468 int ret;
469 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
470
471 if (priv->bss_mode == type) {
472 wiphy_warn(wiphy, "already set to required type\n");
473 return 0;
474 }
475
476 priv->bss_mode = type;
477
478 switch (type) {
479 case NL80211_IFTYPE_ADHOC:
480 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_ADHOC;
481 wiphy_dbg(wiphy, "info: setting interface type to adhoc\n");
482 break;
483 case NL80211_IFTYPE_STATION:
484 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
485 wiphy_dbg(wiphy, "info: setting interface type to managed\n");
486 break;
487 case NL80211_IFTYPE_UNSPECIFIED:
488 dev->ieee80211_ptr->iftype = NL80211_IFTYPE_STATION;
489 wiphy_dbg(wiphy, "info: setting interface type to auto\n");
490 return 0;
491 default:
492 wiphy_err(wiphy, "unknown interface type: %d\n", type);
493 return -EINVAL;
494 }
495
496 mwifiex_deauthenticate(priv, NULL);
497
498 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
499
500 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
501 HostCmd_ACT_GEN_SET, 0, NULL);
502
503 return ret;
504 }
505
506 /*
507 * This function dumps the station information on a buffer.
508 *
509 * The following information are shown -
510 * - Total bytes transmitted
511 * - Total bytes received
512 * - Total packets transmitted
513 * - Total packets received
514 * - Signal quality level
515 * - Transmission rate
516 */
517 static int
518 mwifiex_dump_station_info(struct mwifiex_private *priv,
519 struct station_info *sinfo)
520 {
521 struct mwifiex_ds_get_signal signal;
522 struct mwifiex_rate_cfg rate;
523 int ret = 0;
524
525 sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
526 STATION_INFO_RX_PACKETS |
527 STATION_INFO_TX_PACKETS
528 | STATION_INFO_SIGNAL | STATION_INFO_TX_BITRATE;
529
530 /* Get signal information from the firmware */
531 memset(&signal, 0, sizeof(struct mwifiex_ds_get_signal));
532 if (mwifiex_get_signal_info(priv, &signal)) {
533 dev_err(priv->adapter->dev, "getting signal information\n");
534 ret = -EFAULT;
535 }
536
537 if (mwifiex_drv_get_data_rate(priv, &rate)) {
538 dev_err(priv->adapter->dev, "getting data rate\n");
539 ret = -EFAULT;
540 }
541
542 /* Get DTIM period information from firmware */
543 mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
544 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
545 &priv->dtim_period);
546
547 /*
548 * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid
549 * MCS index values for us are 0 to 7.
550 */
551 if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 8)) {
552 sinfo->txrate.mcs = priv->tx_rate;
553 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
554 /* 40MHz rate */
555 if (priv->tx_htinfo & BIT(1))
556 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
557 /* SGI enabled */
558 if (priv->tx_htinfo & BIT(2))
559 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
560 }
561
562 sinfo->rx_bytes = priv->stats.rx_bytes;
563 sinfo->tx_bytes = priv->stats.tx_bytes;
564 sinfo->rx_packets = priv->stats.rx_packets;
565 sinfo->tx_packets = priv->stats.tx_packets;
566 sinfo->signal = priv->qual_level;
567 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
568 sinfo->txrate.legacy = rate.rate * 5;
569
570 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
571 sinfo->filled |= STATION_INFO_BSS_PARAM;
572 sinfo->bss_param.flags = 0;
573 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
574 WLAN_CAPABILITY_SHORT_PREAMBLE)
575 sinfo->bss_param.flags |=
576 BSS_PARAM_FLAGS_SHORT_PREAMBLE;
577 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
578 WLAN_CAPABILITY_SHORT_SLOT_TIME)
579 sinfo->bss_param.flags |=
580 BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
581 sinfo->bss_param.dtim_period = priv->dtim_period;
582 sinfo->bss_param.beacon_interval =
583 priv->curr_bss_params.bss_descriptor.beacon_period;
584 }
585
586 return ret;
587 }
588
589 /*
590 * CFG802.11 operation handler to get station information.
591 *
592 * This function only works in connected mode, and dumps the
593 * requested station information, if available.
594 */
595 static int
596 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
597 u8 *mac, struct station_info *sinfo)
598 {
599 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
600
601 if (!priv->media_connected)
602 return -ENOENT;
603 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
604 return -ENOENT;
605
606 return mwifiex_dump_station_info(priv, sinfo);
607 }
608
609 /* Supported rates to be advertised to the cfg80211 */
610
611 static struct ieee80211_rate mwifiex_rates[] = {
612 {.bitrate = 10, .hw_value = 2, },
613 {.bitrate = 20, .hw_value = 4, },
614 {.bitrate = 55, .hw_value = 11, },
615 {.bitrate = 110, .hw_value = 22, },
616 {.bitrate = 60, .hw_value = 12, },
617 {.bitrate = 90, .hw_value = 18, },
618 {.bitrate = 120, .hw_value = 24, },
619 {.bitrate = 180, .hw_value = 36, },
620 {.bitrate = 240, .hw_value = 48, },
621 {.bitrate = 360, .hw_value = 72, },
622 {.bitrate = 480, .hw_value = 96, },
623 {.bitrate = 540, .hw_value = 108, },
624 };
625
626 /* Channel definitions to be advertised to cfg80211 */
627
628 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
629 {.center_freq = 2412, .hw_value = 1, },
630 {.center_freq = 2417, .hw_value = 2, },
631 {.center_freq = 2422, .hw_value = 3, },
632 {.center_freq = 2427, .hw_value = 4, },
633 {.center_freq = 2432, .hw_value = 5, },
634 {.center_freq = 2437, .hw_value = 6, },
635 {.center_freq = 2442, .hw_value = 7, },
636 {.center_freq = 2447, .hw_value = 8, },
637 {.center_freq = 2452, .hw_value = 9, },
638 {.center_freq = 2457, .hw_value = 10, },
639 {.center_freq = 2462, .hw_value = 11, },
640 {.center_freq = 2467, .hw_value = 12, },
641 {.center_freq = 2472, .hw_value = 13, },
642 {.center_freq = 2484, .hw_value = 14, },
643 };
644
645 static struct ieee80211_supported_band mwifiex_band_2ghz = {
646 .channels = mwifiex_channels_2ghz,
647 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
648 .bitrates = mwifiex_rates,
649 .n_bitrates = 14,
650 };
651
652 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
653 {.center_freq = 5040, .hw_value = 8, },
654 {.center_freq = 5060, .hw_value = 12, },
655 {.center_freq = 5080, .hw_value = 16, },
656 {.center_freq = 5170, .hw_value = 34, },
657 {.center_freq = 5190, .hw_value = 38, },
658 {.center_freq = 5210, .hw_value = 42, },
659 {.center_freq = 5230, .hw_value = 46, },
660 {.center_freq = 5180, .hw_value = 36, },
661 {.center_freq = 5200, .hw_value = 40, },
662 {.center_freq = 5220, .hw_value = 44, },
663 {.center_freq = 5240, .hw_value = 48, },
664 {.center_freq = 5260, .hw_value = 52, },
665 {.center_freq = 5280, .hw_value = 56, },
666 {.center_freq = 5300, .hw_value = 60, },
667 {.center_freq = 5320, .hw_value = 64, },
668 {.center_freq = 5500, .hw_value = 100, },
669 {.center_freq = 5520, .hw_value = 104, },
670 {.center_freq = 5540, .hw_value = 108, },
671 {.center_freq = 5560, .hw_value = 112, },
672 {.center_freq = 5580, .hw_value = 116, },
673 {.center_freq = 5600, .hw_value = 120, },
674 {.center_freq = 5620, .hw_value = 124, },
675 {.center_freq = 5640, .hw_value = 128, },
676 {.center_freq = 5660, .hw_value = 132, },
677 {.center_freq = 5680, .hw_value = 136, },
678 {.center_freq = 5700, .hw_value = 140, },
679 {.center_freq = 5745, .hw_value = 149, },
680 {.center_freq = 5765, .hw_value = 153, },
681 {.center_freq = 5785, .hw_value = 157, },
682 {.center_freq = 5805, .hw_value = 161, },
683 {.center_freq = 5825, .hw_value = 165, },
684 };
685
686 static struct ieee80211_supported_band mwifiex_band_5ghz = {
687 .channels = mwifiex_channels_5ghz,
688 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
689 .bitrates = mwifiex_rates + 4,
690 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
691 };
692
693
694 /* Supported crypto cipher suits to be advertised to cfg80211 */
695
696 static const u32 mwifiex_cipher_suites[] = {
697 WLAN_CIPHER_SUITE_WEP40,
698 WLAN_CIPHER_SUITE_WEP104,
699 WLAN_CIPHER_SUITE_TKIP,
700 WLAN_CIPHER_SUITE_CCMP,
701 };
702
703 /*
704 * CFG802.11 operation handler for setting bit rates.
705 *
706 * Function selects legacy bang B/G/BG from corresponding bitrates selection.
707 * Currently only 2.4GHz band is supported.
708 */
709 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
710 struct net_device *dev,
711 const u8 *peer,
712 const struct cfg80211_bitrate_mask *mask)
713 {
714 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
715 int index = 0, mode = 0, i;
716 struct mwifiex_adapter *adapter = priv->adapter;
717
718 /* Currently only 2.4GHz is supported */
719 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
720 /*
721 * Rates below 6 Mbps in the table are CCK rates; 802.11b
722 * and from 6 they are OFDM; 802.11G
723 */
724 if (mwifiex_rates[i].bitrate == 60) {
725 index = 1 << i;
726 break;
727 }
728 }
729
730 if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
731 mode = BAND_B;
732 } else {
733 mode = BAND_G;
734 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
735 mode |= BAND_B;
736 }
737
738 if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
739 adapter->config_bands = mode;
740 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
741 adapter->adhoc_start_band = mode;
742 adapter->adhoc_11n_enabled = false;
743 }
744 }
745 adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
746 adapter->channel_type = NL80211_CHAN_NO_HT;
747
748 wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
749 (mode & BAND_B) ? "b" : "",
750 (mode & BAND_G) ? "g" : "");
751
752 return 0;
753 }
754
755 /*
756 * CFG802.11 operation handler for disconnection request.
757 *
758 * This function does not work when there is already a disconnection
759 * procedure going on.
760 */
761 static int
762 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
763 u16 reason_code)
764 {
765 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
766
767 if (mwifiex_deauthenticate(priv, NULL))
768 return -EFAULT;
769
770 wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
771 " reason code %d\n", priv->cfg_bssid, reason_code);
772
773 memset(priv->cfg_bssid, 0, ETH_ALEN);
774
775 return 0;
776 }
777
778 /*
779 * This function informs the CFG802.11 subsystem of a new IBSS.
780 *
781 * The following information are sent to the CFG802.11 subsystem
782 * to register the new IBSS. If we do not register the new IBSS,
783 * a kernel panic will result.
784 * - SSID
785 * - SSID length
786 * - BSSID
787 * - Channel
788 */
789 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
790 {
791 struct ieee80211_channel *chan;
792 struct mwifiex_bss_info bss_info;
793 struct cfg80211_bss *bss;
794 int ie_len;
795 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
796 enum ieee80211_band band;
797
798 if (mwifiex_get_bss_info(priv, &bss_info))
799 return -1;
800
801 ie_buf[0] = WLAN_EID_SSID;
802 ie_buf[1] = bss_info.ssid.ssid_len;
803
804 memcpy(&ie_buf[sizeof(struct ieee_types_header)],
805 &bss_info.ssid.ssid,
806 bss_info.ssid.ssid_len);
807 ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
808
809 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
810 chan = __ieee80211_get_channel(priv->wdev->wiphy,
811 ieee80211_channel_to_frequency(bss_info.bss_chan,
812 band));
813
814 bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
815 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
816 0, ie_buf, ie_len, 0, GFP_KERNEL);
817 cfg80211_put_bss(bss);
818 memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
819
820 return 0;
821 }
822
823 /*
824 * This function connects with a BSS.
825 *
826 * This function handles both Infra and Ad-Hoc modes. It also performs
827 * validity checking on the provided parameters, disconnects from the
828 * current BSS (if any), sets up the association/scan parameters,
829 * including security settings, and performs specific SSID scan before
830 * trying to connect.
831 *
832 * For Infra mode, the function returns failure if the specified SSID
833 * is not found in scan table. However, for Ad-Hoc mode, it can create
834 * the IBSS if it does not exist. On successful completion in either case,
835 * the function notifies the CFG802.11 subsystem of the new BSS connection.
836 */
837 static int
838 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
839 u8 *bssid, int mode, struct ieee80211_channel *channel,
840 struct cfg80211_connect_params *sme, bool privacy)
841 {
842 struct cfg80211_ssid req_ssid;
843 int ret, auth_type = 0;
844 struct cfg80211_bss *bss = NULL;
845 u8 is_scanning_required = 0;
846
847 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
848
849 req_ssid.ssid_len = ssid_len;
850 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
851 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
852 return -EINVAL;
853 }
854
855 memcpy(req_ssid.ssid, ssid, ssid_len);
856 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
857 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
858 return -EINVAL;
859 }
860
861 /* disconnect before try to associate */
862 mwifiex_deauthenticate(priv, NULL);
863
864 if (channel)
865 ret = mwifiex_set_rf_channel(priv, channel,
866 priv->adapter->channel_type);
867
868 /* As this is new association, clear locally stored
869 * keys and security related flags */
870 priv->sec_info.wpa_enabled = false;
871 priv->sec_info.wpa2_enabled = false;
872 priv->wep_key_curr_index = 0;
873 priv->sec_info.encryption_mode = 0;
874 priv->sec_info.is_authtype_auto = 0;
875 ret = mwifiex_set_encode(priv, NULL, 0, 0, 1);
876
877 if (mode == NL80211_IFTYPE_ADHOC) {
878 /* "privacy" is set only for ad-hoc mode */
879 if (privacy) {
880 /*
881 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
882 * the firmware can find a matching network from the
883 * scan. The cfg80211 does not give us the encryption
884 * mode at this stage so just setting it to WEP here.
885 */
886 priv->sec_info.encryption_mode =
887 WLAN_CIPHER_SUITE_WEP104;
888 priv->sec_info.authentication_mode =
889 NL80211_AUTHTYPE_OPEN_SYSTEM;
890 }
891
892 goto done;
893 }
894
895 /* Now handle infra mode. "sme" is valid for infra mode only */
896 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
897 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
898 priv->sec_info.is_authtype_auto = 1;
899 } else {
900 auth_type = sme->auth_type;
901 }
902
903 if (sme->crypto.n_ciphers_pairwise) {
904 priv->sec_info.encryption_mode =
905 sme->crypto.ciphers_pairwise[0];
906 priv->sec_info.authentication_mode = auth_type;
907 }
908
909 if (sme->crypto.cipher_group) {
910 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
911 priv->sec_info.authentication_mode = auth_type;
912 }
913 if (sme->ie)
914 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
915
916 if (sme->key) {
917 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
918 dev_dbg(priv->adapter->dev,
919 "info: setting wep encryption"
920 " with key len %d\n", sme->key_len);
921 priv->wep_key_curr_index = sme->key_idx;
922 ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
923 sme->key_idx, 0);
924 }
925 }
926 done:
927 /*
928 * Scan entries are valid for some time (15 sec). So we can save one
929 * active scan time if we just try cfg80211_get_bss first. If it fails
930 * then request scan and cfg80211_get_bss() again for final output.
931 */
932 while (1) {
933 if (is_scanning_required) {
934 /* Do specific SSID scanning */
935 if (mwifiex_request_scan(priv, &req_ssid)) {
936 dev_err(priv->adapter->dev, "scan error\n");
937 return -EFAULT;
938 }
939 }
940
941 /* Find the BSS we want using available scan results */
942 if (mode == NL80211_IFTYPE_ADHOC)
943 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
944 bssid, ssid, ssid_len,
945 WLAN_CAPABILITY_IBSS,
946 WLAN_CAPABILITY_IBSS);
947 else
948 bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
949 bssid, ssid, ssid_len,
950 WLAN_CAPABILITY_ESS,
951 WLAN_CAPABILITY_ESS);
952
953 if (!bss) {
954 if (is_scanning_required) {
955 dev_warn(priv->adapter->dev, "assoc: requested "
956 "bss not found in scan results\n");
957 break;
958 }
959 is_scanning_required = 1;
960 } else {
961 dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
962 (char *) req_ssid.ssid, bss->bssid);
963 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
964 break;
965 }
966 }
967
968 if (mwifiex_bss_start(priv, bss, &req_ssid))
969 return -EFAULT;
970
971 if (mode == NL80211_IFTYPE_ADHOC) {
972 /* Inform the BSS information to kernel, otherwise
973 * kernel will give a panic after successful assoc */
974 if (mwifiex_cfg80211_inform_ibss_bss(priv))
975 return -EFAULT;
976 }
977
978 return ret;
979 }
980
981 /*
982 * CFG802.11 operation handler for association request.
983 *
984 * This function does not work when the current mode is set to Ad-Hoc, or
985 * when there is already an association procedure going on. The given BSS
986 * information is used to associate.
987 */
988 static int
989 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
990 struct cfg80211_connect_params *sme)
991 {
992 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
993 int ret = 0;
994
995 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
996 wiphy_err(wiphy, "received infra assoc request "
997 "when station is in ibss mode\n");
998 goto done;
999 }
1000
1001 wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1002 (char *) sme->ssid, sme->bssid);
1003
1004 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1005 priv->bss_mode, sme->channel, sme, 0);
1006 done:
1007 if (!ret) {
1008 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1009 NULL, 0, WLAN_STATUS_SUCCESS,
1010 GFP_KERNEL);
1011 dev_dbg(priv->adapter->dev,
1012 "info: associated to bssid %pM successfully\n",
1013 priv->cfg_bssid);
1014 } else {
1015 dev_dbg(priv->adapter->dev,
1016 "info: association to bssid %pM failed\n",
1017 priv->cfg_bssid);
1018 memset(priv->cfg_bssid, 0, ETH_ALEN);
1019 }
1020
1021 return ret;
1022 }
1023
1024 /*
1025 * CFG802.11 operation handler to join an IBSS.
1026 *
1027 * This function does not work in any mode other than Ad-Hoc, or if
1028 * a join operation is already in progress.
1029 */
1030 static int
1031 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1032 struct cfg80211_ibss_params *params)
1033 {
1034 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1035 int ret = 0;
1036
1037 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1038 wiphy_err(wiphy, "request to join ibss received "
1039 "when station is not in ibss mode\n");
1040 goto done;
1041 }
1042
1043 wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1044 (char *) params->ssid, params->bssid);
1045
1046 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1047 params->bssid, priv->bss_mode,
1048 params->channel, NULL, params->privacy);
1049 done:
1050 if (!ret) {
1051 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1052 dev_dbg(priv->adapter->dev,
1053 "info: joined/created adhoc network with bssid"
1054 " %pM successfully\n", priv->cfg_bssid);
1055 } else {
1056 dev_dbg(priv->adapter->dev,
1057 "info: failed creating/joining adhoc network\n");
1058 }
1059
1060 return ret;
1061 }
1062
1063 /*
1064 * CFG802.11 operation handler to leave an IBSS.
1065 *
1066 * This function does not work if a leave operation is
1067 * already in progress.
1068 */
1069 static int
1070 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1071 {
1072 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1073
1074 wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1075 priv->cfg_bssid);
1076 if (mwifiex_deauthenticate(priv, NULL))
1077 return -EFAULT;
1078
1079 memset(priv->cfg_bssid, 0, ETH_ALEN);
1080
1081 return 0;
1082 }
1083
1084 /*
1085 * CFG802.11 operation handler for scan request.
1086 *
1087 * This function issues a scan request to the firmware based upon
1088 * the user specified scan configuration. On successfull completion,
1089 * it also informs the results.
1090 */
1091 static int
1092 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1093 struct cfg80211_scan_request *request)
1094 {
1095 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1096 int i;
1097 struct ieee80211_channel *chan;
1098
1099 wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1100
1101 priv->scan_request = request;
1102
1103 priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1104 GFP_KERNEL);
1105 if (!priv->user_scan_cfg) {
1106 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1107 return -ENOMEM;
1108 }
1109 for (i = 0; i < request->n_ssids; i++) {
1110 memcpy(priv->user_scan_cfg->ssid_list[i].ssid,
1111 request->ssids[i].ssid, request->ssids[i].ssid_len);
1112 priv->user_scan_cfg->ssid_list[i].max_len =
1113 request->ssids[i].ssid_len;
1114 }
1115 for (i = 0; i < request->n_channels; i++) {
1116 chan = request->channels[i];
1117 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1118 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1119
1120 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1121 priv->user_scan_cfg->chan_list[i].scan_type =
1122 MWIFIEX_SCAN_TYPE_PASSIVE;
1123 else
1124 priv->user_scan_cfg->chan_list[i].scan_type =
1125 MWIFIEX_SCAN_TYPE_ACTIVE;
1126
1127 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1128 }
1129 if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
1130 return -EFAULT;
1131
1132 return 0;
1133 }
1134
1135 /*
1136 * This function sets up the CFG802.11 specific HT capability fields
1137 * with default values.
1138 *
1139 * The following default values are set -
1140 * - HT Supported = True
1141 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1142 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1143 * - HT Capabilities supported by firmware
1144 * - MCS information, Rx mask = 0xff
1145 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1146 */
1147 static void
1148 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1149 struct mwifiex_private *priv)
1150 {
1151 int rx_mcs_supp;
1152 struct ieee80211_mcs_info mcs_set;
1153 u8 *mcs = (u8 *)&mcs_set;
1154 struct mwifiex_adapter *adapter = priv->adapter;
1155
1156 ht_info->ht_supported = true;
1157 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1158 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1159
1160 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1161
1162 /* Fill HT capability information */
1163 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1164 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1165 else
1166 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1167
1168 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1169 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1170 else
1171 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1172
1173 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1174 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1175 else
1176 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1177
1178 if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1179 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1180 else
1181 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1182
1183 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1184 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1185 else
1186 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1187
1188 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1189 ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1190
1191 rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1192 /* Set MCS for 1x1 */
1193 memset(mcs, 0xff, rx_mcs_supp);
1194 /* Clear all the other values */
1195 memset(&mcs[rx_mcs_supp], 0,
1196 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1197 if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1198 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1199 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1200 SETHT_MCS32(mcs_set.rx_mask);
1201
1202 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1203
1204 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1205 }
1206
1207 /*
1208 * create a new virtual interface with the given name
1209 */
1210 struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1211 char *name,
1212 enum nl80211_iftype type,
1213 u32 *flags,
1214 struct vif_params *params)
1215 {
1216 struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1217 struct mwifiex_adapter *adapter;
1218 struct net_device *dev;
1219 void *mdev_priv;
1220
1221 if (!priv)
1222 return NULL;
1223
1224 adapter = priv->adapter;
1225 if (!adapter)
1226 return NULL;
1227
1228 switch (type) {
1229 case NL80211_IFTYPE_UNSPECIFIED:
1230 case NL80211_IFTYPE_STATION:
1231 case NL80211_IFTYPE_ADHOC:
1232 if (priv->bss_mode) {
1233 wiphy_err(wiphy, "cannot create multiple"
1234 " station/adhoc interfaces\n");
1235 return NULL;
1236 }
1237
1238 if (type == NL80211_IFTYPE_UNSPECIFIED)
1239 priv->bss_mode = NL80211_IFTYPE_STATION;
1240 else
1241 priv->bss_mode = type;
1242
1243 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1244 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1245 priv->bss_priority = 0;
1246 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1247 priv->bss_num = 0;
1248
1249 break;
1250 default:
1251 wiphy_err(wiphy, "type not supported\n");
1252 return NULL;
1253 }
1254
1255 dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1256 ether_setup, 1);
1257 if (!dev) {
1258 wiphy_err(wiphy, "no memory available for netdevice\n");
1259 goto error;
1260 }
1261
1262 dev_net_set(dev, wiphy_net(wiphy));
1263 dev->ieee80211_ptr = priv->wdev;
1264 dev->ieee80211_ptr->iftype = priv->bss_mode;
1265 memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1266 memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1267 SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1268
1269 dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1270 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1271 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1272
1273 mdev_priv = netdev_priv(dev);
1274 *((unsigned long *) mdev_priv) = (unsigned long) priv;
1275
1276 priv->netdev = dev;
1277 mwifiex_init_priv_params(priv, dev);
1278
1279 SET_NETDEV_DEV(dev, adapter->dev);
1280
1281 /* Register network device */
1282 if (register_netdevice(dev)) {
1283 wiphy_err(wiphy, "cannot register virtual network device\n");
1284 goto error;
1285 }
1286
1287 sema_init(&priv->async_sem, 1);
1288 priv->scan_pending_on_block = false;
1289
1290 dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1291
1292 #ifdef CONFIG_DEBUG_FS
1293 mwifiex_dev_debugfs_init(priv);
1294 #endif
1295 return dev;
1296 error:
1297 if (dev && (dev->reg_state == NETREG_UNREGISTERED))
1298 free_netdev(dev);
1299 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1300
1301 return NULL;
1302 }
1303 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1304
1305 /*
1306 * del_virtual_intf: remove the virtual interface determined by dev
1307 */
1308 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1309 {
1310 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1311
1312 #ifdef CONFIG_DEBUG_FS
1313 mwifiex_dev_debugfs_remove(priv);
1314 #endif
1315
1316 if (!netif_queue_stopped(priv->netdev))
1317 netif_stop_queue(priv->netdev);
1318
1319 if (netif_carrier_ok(priv->netdev))
1320 netif_carrier_off(priv->netdev);
1321
1322 if (dev->reg_state == NETREG_REGISTERED)
1323 unregister_netdevice(dev);
1324
1325 if (dev->reg_state == NETREG_UNREGISTERED)
1326 free_netdev(dev);
1327
1328 /* Clear the priv in adapter */
1329 priv->netdev = NULL;
1330
1331 priv->media_connected = false;
1332
1333 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1334
1335 return 0;
1336 }
1337 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1338
1339 /* station cfg80211 operations */
1340 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1341 .add_virtual_intf = mwifiex_add_virtual_intf,
1342 .del_virtual_intf = mwifiex_del_virtual_intf,
1343 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1344 .scan = mwifiex_cfg80211_scan,
1345 .connect = mwifiex_cfg80211_connect,
1346 .disconnect = mwifiex_cfg80211_disconnect,
1347 .get_station = mwifiex_cfg80211_get_station,
1348 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1349 .set_channel = mwifiex_cfg80211_set_channel,
1350 .join_ibss = mwifiex_cfg80211_join_ibss,
1351 .leave_ibss = mwifiex_cfg80211_leave_ibss,
1352 .add_key = mwifiex_cfg80211_add_key,
1353 .del_key = mwifiex_cfg80211_del_key,
1354 .set_default_key = mwifiex_cfg80211_set_default_key,
1355 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1356 .set_tx_power = mwifiex_cfg80211_set_tx_power,
1357 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1358 };
1359
1360 /*
1361 * This function registers the device with CFG802.11 subsystem.
1362 *
1363 * The function creates the wireless device/wiphy, populates it with
1364 * default parameters and handler function pointers, and finally
1365 * registers the device.
1366 */
1367 int mwifiex_register_cfg80211(struct mwifiex_private *priv)
1368 {
1369 int ret;
1370 void *wdev_priv;
1371 struct wireless_dev *wdev;
1372
1373 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1374 if (!wdev) {
1375 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1376 __func__);
1377 return -ENOMEM;
1378 }
1379 wdev->wiphy =
1380 wiphy_new(&mwifiex_cfg80211_ops,
1381 sizeof(struct mwifiex_private *));
1382 if (!wdev->wiphy) {
1383 kfree(wdev);
1384 return -ENOMEM;
1385 }
1386 wdev->iftype = NL80211_IFTYPE_STATION;
1387 wdev->wiphy->max_scan_ssids = 10;
1388 wdev->wiphy->interface_modes =
1389 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
1390
1391 wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1392 mwifiex_setup_ht_caps(
1393 &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1394
1395 if (priv->adapter->config_bands & BAND_A) {
1396 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1397 mwifiex_setup_ht_caps(
1398 &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1399 } else {
1400 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1401 }
1402
1403 /* Initialize cipher suits */
1404 wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1405 wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1406
1407 memcpy(wdev->wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1408 wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1409
1410 /* Reserve space for bss band information */
1411 wdev->wiphy->bss_priv_size = sizeof(u8);
1412
1413 wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1414
1415 /* Set struct mwifiex_private pointer in wiphy_priv */
1416 wdev_priv = wiphy_priv(wdev->wiphy);
1417
1418 *(unsigned long *) wdev_priv = (unsigned long) priv;
1419
1420 set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1421
1422 ret = wiphy_register(wdev->wiphy);
1423 if (ret < 0) {
1424 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1425 __func__);
1426 wiphy_free(wdev->wiphy);
1427 kfree(wdev);
1428 return ret;
1429 } else {
1430 dev_dbg(priv->adapter->dev,
1431 "info: successfully registered wiphy device\n");
1432 }
1433
1434 priv->wdev = wdev;
1435
1436 return ret;
1437 }
Linux kernel - Deliverables
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