Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
[linux-2.6.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_status == MWIFIEX_802_11_WEP_DISABLED)
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 = 220, .hw_value = 44, },
617         {.bitrate = 60, .hw_value = 12, },
618         {.bitrate = 90, .hw_value = 18, },
619         {.bitrate = 120, .hw_value = 24, },
620         {.bitrate = 180, .hw_value = 36, },
621         {.bitrate = 240, .hw_value = 48, },
622         {.bitrate = 360, .hw_value = 72, },
623         {.bitrate = 480, .hw_value = 96, },
624         {.bitrate = 540, .hw_value = 108, },
625         {.bitrate = 720, .hw_value = 144, },
626 };
627
628 /* Channel definitions to be advertised to cfg80211 */
629
630 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
631         {.center_freq = 2412, .hw_value = 1, },
632         {.center_freq = 2417, .hw_value = 2, },
633         {.center_freq = 2422, .hw_value = 3, },
634         {.center_freq = 2427, .hw_value = 4, },
635         {.center_freq = 2432, .hw_value = 5, },
636         {.center_freq = 2437, .hw_value = 6, },
637         {.center_freq = 2442, .hw_value = 7, },
638         {.center_freq = 2447, .hw_value = 8, },
639         {.center_freq = 2452, .hw_value = 9, },
640         {.center_freq = 2457, .hw_value = 10, },
641         {.center_freq = 2462, .hw_value = 11, },
642         {.center_freq = 2467, .hw_value = 12, },
643         {.center_freq = 2472, .hw_value = 13, },
644         {.center_freq = 2484, .hw_value = 14, },
645 };
646
647 static struct ieee80211_supported_band mwifiex_band_2ghz = {
648         .channels = mwifiex_channels_2ghz,
649         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
650         .bitrates = mwifiex_rates,
651         .n_bitrates = 14,
652 };
653
654 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
655         {.center_freq = 5040, .hw_value = 8, },
656         {.center_freq = 5060, .hw_value = 12, },
657         {.center_freq = 5080, .hw_value = 16, },
658         {.center_freq = 5170, .hw_value = 34, },
659         {.center_freq = 5190, .hw_value = 38, },
660         {.center_freq = 5210, .hw_value = 42, },
661         {.center_freq = 5230, .hw_value = 46, },
662         {.center_freq = 5180, .hw_value = 36, },
663         {.center_freq = 5200, .hw_value = 40, },
664         {.center_freq = 5220, .hw_value = 44, },
665         {.center_freq = 5240, .hw_value = 48, },
666         {.center_freq = 5260, .hw_value = 52, },
667         {.center_freq = 5280, .hw_value = 56, },
668         {.center_freq = 5300, .hw_value = 60, },
669         {.center_freq = 5320, .hw_value = 64, },
670         {.center_freq = 5500, .hw_value = 100, },
671         {.center_freq = 5520, .hw_value = 104, },
672         {.center_freq = 5540, .hw_value = 108, },
673         {.center_freq = 5560, .hw_value = 112, },
674         {.center_freq = 5580, .hw_value = 116, },
675         {.center_freq = 5600, .hw_value = 120, },
676         {.center_freq = 5620, .hw_value = 124, },
677         {.center_freq = 5640, .hw_value = 128, },
678         {.center_freq = 5660, .hw_value = 132, },
679         {.center_freq = 5680, .hw_value = 136, },
680         {.center_freq = 5700, .hw_value = 140, },
681         {.center_freq = 5745, .hw_value = 149, },
682         {.center_freq = 5765, .hw_value = 153, },
683         {.center_freq = 5785, .hw_value = 157, },
684         {.center_freq = 5805, .hw_value = 161, },
685         {.center_freq = 5825, .hw_value = 165, },
686 };
687
688 static struct ieee80211_supported_band mwifiex_band_5ghz = {
689         .channels = mwifiex_channels_5ghz,
690         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
691         .bitrates = mwifiex_rates - 4,
692         .n_bitrates = ARRAY_SIZE(mwifiex_rates) + 4,
693 };
694
695
696 /* Supported crypto cipher suits to be advertised to cfg80211 */
697
698 static const u32 mwifiex_cipher_suites[] = {
699         WLAN_CIPHER_SUITE_WEP40,
700         WLAN_CIPHER_SUITE_WEP104,
701         WLAN_CIPHER_SUITE_TKIP,
702         WLAN_CIPHER_SUITE_CCMP,
703 };
704
705 /*
706  * CFG802.11 operation handler for setting bit rates.
707  *
708  * Function selects legacy bang B/G/BG from corresponding bitrates selection.
709  * Currently only 2.4GHz band is supported.
710  */
711 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
712                                 struct net_device *dev,
713                                 const u8 *peer,
714                                 const struct cfg80211_bitrate_mask *mask)
715 {
716         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
717         int index = 0, mode = 0, i;
718         struct mwifiex_adapter *adapter = priv->adapter;
719
720         /* Currently only 2.4GHz is supported */
721         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
722                 /*
723                  * Rates below 6 Mbps in the table are CCK rates; 802.11b
724                  * and from 6 they are OFDM; 802.11G
725                  */
726                 if (mwifiex_rates[i].bitrate == 60) {
727                         index = 1 << i;
728                         break;
729                 }
730         }
731
732         if (mask->control[IEEE80211_BAND_2GHZ].legacy < index) {
733                 mode = BAND_B;
734         } else {
735                 mode = BAND_G;
736                 if (mask->control[IEEE80211_BAND_2GHZ].legacy % index)
737                         mode |=  BAND_B;
738         }
739
740         if (!((mode | adapter->fw_bands) & ~adapter->fw_bands)) {
741                 adapter->config_bands = mode;
742                 if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
743                         adapter->adhoc_start_band = mode;
744                         adapter->adhoc_11n_enabled = false;
745                 }
746         }
747         adapter->sec_chan_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
748         adapter->channel_type = NL80211_CHAN_NO_HT;
749
750         wiphy_debug(wiphy, "info: device configured in 802.11%s%s mode\n",
751                                 (mode & BAND_B) ? "b" : "",
752                                 (mode & BAND_G) ? "g" : "");
753
754         return 0;
755 }
756
757 /*
758  * CFG802.11 operation handler for disconnection request.
759  *
760  * This function does not work when there is already a disconnection
761  * procedure going on.
762  */
763 static int
764 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
765                             u16 reason_code)
766 {
767         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
768
769         if (mwifiex_deauthenticate(priv, NULL))
770                 return -EFAULT;
771
772         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
773                 " reason code %d\n", priv->cfg_bssid, reason_code);
774
775         memset(priv->cfg_bssid, 0, ETH_ALEN);
776
777         return 0;
778 }
779
780 /*
781  * This function informs the CFG802.11 subsystem of a new IBSS.
782  *
783  * The following information are sent to the CFG802.11 subsystem
784  * to register the new IBSS. If we do not register the new IBSS,
785  * a kernel panic will result.
786  *      - SSID
787  *      - SSID length
788  *      - BSSID
789  *      - Channel
790  */
791 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
792 {
793         struct ieee80211_channel *chan;
794         struct mwifiex_bss_info bss_info;
795         struct cfg80211_bss *bss;
796         int ie_len;
797         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
798         enum ieee80211_band band;
799
800         if (mwifiex_get_bss_info(priv, &bss_info))
801                 return -1;
802
803         ie_buf[0] = WLAN_EID_SSID;
804         ie_buf[1] = bss_info.ssid.ssid_len;
805
806         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
807                         &bss_info.ssid.ssid,
808                         bss_info.ssid.ssid_len);
809         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
810
811         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
812         chan = __ieee80211_get_channel(priv->wdev->wiphy,
813                         ieee80211_channel_to_frequency(bss_info.bss_chan,
814                                                        band));
815
816         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
817                 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
818                 0, ie_buf, ie_len, 0, GFP_KERNEL);
819         cfg80211_put_bss(bss);
820         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
821
822         return 0;
823 }
824
825 /*
826  * This function connects with a BSS.
827  *
828  * This function handles both Infra and Ad-Hoc modes. It also performs
829  * validity checking on the provided parameters, disconnects from the
830  * current BSS (if any), sets up the association/scan parameters,
831  * including security settings, and performs specific SSID scan before
832  * trying to connect.
833  *
834  * For Infra mode, the function returns failure if the specified SSID
835  * is not found in scan table. However, for Ad-Hoc mode, it can create
836  * the IBSS if it does not exist. On successful completion in either case,
837  * the function notifies the CFG802.11 subsystem of the new BSS connection.
838  */
839 static int
840 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
841                        u8 *bssid, int mode, struct ieee80211_channel *channel,
842                        struct cfg80211_connect_params *sme, bool privacy)
843 {
844         struct mwifiex_802_11_ssid req_ssid;
845         int ret, auth_type = 0;
846         struct cfg80211_bss *bss = NULL;
847         u8 is_scanning_required = 0;
848
849         memset(&req_ssid, 0, sizeof(struct mwifiex_802_11_ssid));
850
851         req_ssid.ssid_len = ssid_len;
852         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
853                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
854                 return -EINVAL;
855         }
856
857         memcpy(req_ssid.ssid, ssid, ssid_len);
858         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
859                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
860                 return -EINVAL;
861         }
862
863         /* disconnect before try to associate */
864         mwifiex_deauthenticate(priv, NULL);
865
866         if (channel)
867                 ret = mwifiex_set_rf_channel(priv, channel,
868                                                 priv->adapter->channel_type);
869
870         /* As this is new association, clear locally stored
871          * keys and security related flags */
872         priv->sec_info.wpa_enabled = false;
873         priv->sec_info.wpa2_enabled = false;
874         priv->wep_key_curr_index = 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                         || sme->auth_type == NL80211_AUTHTYPE_OPEN_SYSTEM)
898                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
899         else if (sme->auth_type == NL80211_AUTHTYPE_SHARED_KEY)
900                 auth_type = NL80211_AUTHTYPE_SHARED_KEY;
901
902         if (sme->crypto.n_ciphers_pairwise) {
903                 priv->sec_info.encryption_mode =
904                                                 sme->crypto.ciphers_pairwise[0];
905                 priv->sec_info.authentication_mode = auth_type;
906         }
907
908         if (sme->crypto.cipher_group) {
909                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
910                 priv->sec_info.authentication_mode = auth_type;
911         }
912         if (sme->ie)
913                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
914
915         if (sme->key) {
916                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
917                         dev_dbg(priv->adapter->dev,
918                                 "info: setting wep encryption"
919                                 " with key len %d\n", sme->key_len);
920                         priv->wep_key_curr_index = sme->key_idx;
921                         ret = mwifiex_set_encode(priv, sme->key, sme->key_len,
922                                                         sme->key_idx, 0);
923                 }
924         }
925 done:
926         /* Do specific SSID scanning */
927         if (mwifiex_request_scan(priv, &req_ssid)) {
928                 dev_err(priv->adapter->dev, "scan error\n");
929                 return -EFAULT;
930         }
931
932         /*
933          * Scan entries are valid for some time (15 sec). So we can save one
934          * active scan time if we just try cfg80211_get_bss first. If it fails
935          * then request scan and cfg80211_get_bss() again for final output.
936          */
937         while (1) {
938                 if (is_scanning_required) {
939                         /* Do specific SSID scanning */
940                         if (mwifiex_request_scan(priv, &req_ssid)) {
941                                 dev_err(priv->adapter->dev, "scan error\n");
942                                 return -EFAULT;
943                         }
944                 }
945
946                 /* Find the BSS we want using available scan results */
947                 if (mode == NL80211_IFTYPE_ADHOC)
948                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
949                                                bssid, ssid, ssid_len,
950                                                WLAN_CAPABILITY_IBSS,
951                                                WLAN_CAPABILITY_IBSS);
952                 else
953                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
954                                                bssid, ssid, ssid_len,
955                                                WLAN_CAPABILITY_ESS,
956                                                WLAN_CAPABILITY_ESS);
957
958                 if (!bss) {
959                         if (is_scanning_required) {
960                                 dev_warn(priv->adapter->dev, "assoc: requested "
961                                          "bss not found in scan results\n");
962                                 break;
963                         }
964                         is_scanning_required = 1;
965                 } else {
966                         dev_dbg(priv->adapter->dev, "info: trying to associate to %s and bssid %pM\n",
967                                         (char *) req_ssid.ssid, bss->bssid);
968                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
969                         break;
970                 }
971         }
972
973         if (mwifiex_bss_start(priv, bss, &req_ssid))
974                 return -EFAULT;
975
976         if (mode == NL80211_IFTYPE_ADHOC) {
977                 /* Inform the BSS information to kernel, otherwise
978                  * kernel will give a panic after successful assoc */
979                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
980                         return -EFAULT;
981         }
982
983         return ret;
984 }
985
986 /*
987  * CFG802.11 operation handler for association request.
988  *
989  * This function does not work when the current mode is set to Ad-Hoc, or
990  * when there is already an association procedure going on. The given BSS
991  * information is used to associate.
992  */
993 static int
994 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
995                          struct cfg80211_connect_params *sme)
996 {
997         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
998         int ret = 0;
999
1000         if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1001                 wiphy_err(wiphy, "received infra assoc request "
1002                                 "when station is in ibss mode\n");
1003                 goto done;
1004         }
1005
1006         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1007                (char *) sme->ssid, sme->bssid);
1008
1009         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1010                                      priv->bss_mode, sme->channel, sme, 0);
1011 done:
1012         if (!ret) {
1013                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1014                                         NULL, 0, WLAN_STATUS_SUCCESS,
1015                                         GFP_KERNEL);
1016                 dev_dbg(priv->adapter->dev,
1017                         "info: associated to bssid %pM successfully\n",
1018                         priv->cfg_bssid);
1019         } else {
1020                 dev_dbg(priv->adapter->dev,
1021                         "info: association to bssid %pM failed\n",
1022                         priv->cfg_bssid);
1023                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1024         }
1025
1026         return ret;
1027 }
1028
1029 /*
1030  * CFG802.11 operation handler to join an IBSS.
1031  *
1032  * This function does not work in any mode other than Ad-Hoc, or if
1033  * a join operation is already in progress.
1034  */
1035 static int
1036 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1037                            struct cfg80211_ibss_params *params)
1038 {
1039         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1040         int ret = 0;
1041
1042         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1043                 wiphy_err(wiphy, "request to join ibss received "
1044                                 "when station is not in ibss mode\n");
1045                 goto done;
1046         }
1047
1048         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1049                (char *) params->ssid, params->bssid);
1050
1051         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1052                                 params->bssid, priv->bss_mode,
1053                                 params->channel, NULL, params->privacy);
1054 done:
1055         if (!ret) {
1056                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1057                 dev_dbg(priv->adapter->dev,
1058                         "info: joined/created adhoc network with bssid"
1059                         " %pM successfully\n", priv->cfg_bssid);
1060         } else {
1061                 dev_dbg(priv->adapter->dev,
1062                         "info: failed creating/joining adhoc network\n");
1063         }
1064
1065         return ret;
1066 }
1067
1068 /*
1069  * CFG802.11 operation handler to leave an IBSS.
1070  *
1071  * This function does not work if a leave operation is
1072  * already in progress.
1073  */
1074 static int
1075 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1076 {
1077         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1078
1079         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1080                         priv->cfg_bssid);
1081         if (mwifiex_deauthenticate(priv, NULL))
1082                 return -EFAULT;
1083
1084         memset(priv->cfg_bssid, 0, ETH_ALEN);
1085
1086         return 0;
1087 }
1088
1089 /*
1090  * CFG802.11 operation handler for scan request.
1091  *
1092  * This function issues a scan request to the firmware based upon
1093  * the user specified scan configuration. On successfull completion,
1094  * it also informs the results.
1095  */
1096 static int
1097 mwifiex_cfg80211_scan(struct wiphy *wiphy, struct net_device *dev,
1098                       struct cfg80211_scan_request *request)
1099 {
1100         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1101         int i;
1102         struct ieee80211_channel *chan;
1103
1104         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1105
1106         priv->scan_request = request;
1107
1108         priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg),
1109                                         GFP_KERNEL);
1110         if (!priv->user_scan_cfg) {
1111                 dev_err(priv->adapter->dev, "failed to alloc scan_req\n");
1112                 return -ENOMEM;
1113         }
1114         for (i = 0; i < request->n_ssids; i++) {
1115                 memcpy(priv->user_scan_cfg->ssid_list[i].ssid,
1116                         request->ssids[i].ssid, request->ssids[i].ssid_len);
1117                 priv->user_scan_cfg->ssid_list[i].max_len =
1118                         request->ssids[i].ssid_len;
1119         }
1120         for (i = 0; i < request->n_channels; i++) {
1121                 chan = request->channels[i];
1122                 priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1123                 priv->user_scan_cfg->chan_list[i].radio_type = chan->band;
1124
1125                 if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
1126                         priv->user_scan_cfg->chan_list[i].scan_type =
1127                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1128                 else
1129                         priv->user_scan_cfg->chan_list[i].scan_type =
1130                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1131
1132                 priv->user_scan_cfg->chan_list[i].scan_time = 0;
1133         }
1134         if (mwifiex_set_user_scan_ioctl(priv, priv->user_scan_cfg))
1135                 return -EFAULT;
1136
1137         return 0;
1138 }
1139
1140 /*
1141  * This function sets up the CFG802.11 specific HT capability fields
1142  * with default values.
1143  *
1144  * The following default values are set -
1145  *      - HT Supported = True
1146  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
1147  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
1148  *      - HT Capabilities supported by firmware
1149  *      - MCS information, Rx mask = 0xff
1150  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
1151  */
1152 static void
1153 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
1154                       struct mwifiex_private *priv)
1155 {
1156         int rx_mcs_supp;
1157         struct ieee80211_mcs_info mcs_set;
1158         u8 *mcs = (u8 *)&mcs_set;
1159         struct mwifiex_adapter *adapter = priv->adapter;
1160
1161         ht_info->ht_supported = true;
1162         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1163         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1164
1165         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
1166
1167         /* Fill HT capability information */
1168         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1169                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1170         else
1171                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1172
1173         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
1174                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
1175         else
1176                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
1177
1178         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
1179                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
1180         else
1181                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
1182
1183         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
1184                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
1185         else
1186                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
1187
1188         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
1189                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
1190         else
1191                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
1192
1193         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
1194         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
1195
1196         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
1197         /* Set MCS for 1x1 */
1198         memset(mcs, 0xff, rx_mcs_supp);
1199         /* Clear all the other values */
1200         memset(&mcs[rx_mcs_supp], 0,
1201                         sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
1202         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
1203                         ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
1204                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
1205                 SETHT_MCS32(mcs_set.rx_mask);
1206
1207         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
1208
1209         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1210 }
1211
1212 /*
1213  *  create a new virtual interface with the given name
1214  */
1215 struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy,
1216                                                 char *name,
1217                                                 enum nl80211_iftype type,
1218                                                 u32 *flags,
1219                                                 struct vif_params *params)
1220 {
1221         struct mwifiex_private *priv = mwifiex_cfg80211_get_priv(wiphy);
1222         struct mwifiex_adapter *adapter;
1223         struct net_device *dev;
1224         void *mdev_priv;
1225
1226         if (!priv)
1227                 return NULL;
1228
1229         adapter = priv->adapter;
1230         if (!adapter)
1231                 return NULL;
1232
1233         switch (type) {
1234         case NL80211_IFTYPE_UNSPECIFIED:
1235         case NL80211_IFTYPE_STATION:
1236         case NL80211_IFTYPE_ADHOC:
1237                 if (priv->bss_mode) {
1238                         wiphy_err(wiphy, "cannot create multiple"
1239                                         " station/adhoc interfaces\n");
1240                         return NULL;
1241                 }
1242
1243                 if (type == NL80211_IFTYPE_UNSPECIFIED)
1244                         priv->bss_mode = NL80211_IFTYPE_STATION;
1245                 else
1246                         priv->bss_mode = type;
1247
1248                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
1249                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
1250                 priv->bss_priority = 0;
1251                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
1252                 priv->bss_num = 0;
1253
1254                 break;
1255         default:
1256                 wiphy_err(wiphy, "type not supported\n");
1257                 return NULL;
1258         }
1259
1260         dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name,
1261                               ether_setup, 1);
1262         if (!dev) {
1263                 wiphy_err(wiphy, "no memory available for netdevice\n");
1264                 goto error;
1265         }
1266
1267         dev_net_set(dev, wiphy_net(wiphy));
1268         dev->ieee80211_ptr = priv->wdev;
1269         dev->ieee80211_ptr->iftype = priv->bss_mode;
1270         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
1271         memcpy(dev->perm_addr, wiphy->perm_addr, ETH_ALEN);
1272         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
1273
1274         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
1275         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
1276         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
1277
1278         mdev_priv = netdev_priv(dev);
1279         *((unsigned long *) mdev_priv) = (unsigned long) priv;
1280
1281         priv->netdev = dev;
1282         mwifiex_init_priv_params(priv, dev);
1283
1284         SET_NETDEV_DEV(dev, adapter->dev);
1285
1286         /* Register network device */
1287         if (register_netdevice(dev)) {
1288                 wiphy_err(wiphy, "cannot register virtual network device\n");
1289                 goto error;
1290         }
1291
1292         sema_init(&priv->async_sem, 1);
1293         priv->scan_pending_on_block = false;
1294
1295         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
1296
1297 #ifdef CONFIG_DEBUG_FS
1298         mwifiex_dev_debugfs_init(priv);
1299 #endif
1300         return dev;
1301 error:
1302         if (dev && (dev->reg_state == NETREG_UNREGISTERED))
1303                 free_netdev(dev);
1304         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1305
1306         return NULL;
1307 }
1308 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
1309
1310 /*
1311  * del_virtual_intf: remove the virtual interface determined by dev
1312  */
1313 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct net_device *dev)
1314 {
1315         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1316
1317 #ifdef CONFIG_DEBUG_FS
1318         mwifiex_dev_debugfs_remove(priv);
1319 #endif
1320
1321         if (!netif_queue_stopped(priv->netdev))
1322                 netif_stop_queue(priv->netdev);
1323
1324         if (netif_carrier_ok(priv->netdev))
1325                 netif_carrier_off(priv->netdev);
1326
1327         if (dev->reg_state == NETREG_REGISTERED)
1328                 unregister_netdevice(dev);
1329
1330         if (dev->reg_state == NETREG_UNREGISTERED)
1331                 free_netdev(dev);
1332
1333         /* Clear the priv in adapter */
1334         priv->netdev = NULL;
1335
1336         priv->media_connected = false;
1337
1338         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
1339
1340         return 0;
1341 }
1342 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
1343
1344 /* station cfg80211 operations */
1345 static struct cfg80211_ops mwifiex_cfg80211_ops = {
1346         .add_virtual_intf = mwifiex_add_virtual_intf,
1347         .del_virtual_intf = mwifiex_del_virtual_intf,
1348         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
1349         .scan = mwifiex_cfg80211_scan,
1350         .connect = mwifiex_cfg80211_connect,
1351         .disconnect = mwifiex_cfg80211_disconnect,
1352         .get_station = mwifiex_cfg80211_get_station,
1353         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
1354         .set_channel = mwifiex_cfg80211_set_channel,
1355         .join_ibss = mwifiex_cfg80211_join_ibss,
1356         .leave_ibss = mwifiex_cfg80211_leave_ibss,
1357         .add_key = mwifiex_cfg80211_add_key,
1358         .del_key = mwifiex_cfg80211_del_key,
1359         .set_default_key = mwifiex_cfg80211_set_default_key,
1360         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
1361         .set_tx_power = mwifiex_cfg80211_set_tx_power,
1362         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
1363 };
1364
1365 /*
1366  * This function registers the device with CFG802.11 subsystem.
1367  *
1368  * The function creates the wireless device/wiphy, populates it with
1369  * default parameters and handler function pointers, and finally
1370  * registers the device.
1371  */
1372 int mwifiex_register_cfg80211(struct mwifiex_private *priv)
1373 {
1374         int ret;
1375         void *wdev_priv;
1376         struct wireless_dev *wdev;
1377
1378         wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
1379         if (!wdev) {
1380                 dev_err(priv->adapter->dev, "%s: allocating wireless device\n",
1381                                                 __func__);
1382                 return -ENOMEM;
1383         }
1384         wdev->wiphy =
1385                 wiphy_new(&mwifiex_cfg80211_ops,
1386                           sizeof(struct mwifiex_private *));
1387         if (!wdev->wiphy) {
1388                 kfree(wdev);
1389                 return -ENOMEM;
1390         }
1391         wdev->iftype = NL80211_IFTYPE_STATION;
1392         wdev->wiphy->max_scan_ssids = 10;
1393         wdev->wiphy->interface_modes =
1394                 BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC);
1395
1396         wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
1397         mwifiex_setup_ht_caps(
1398                 &wdev->wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
1399
1400         if (priv->adapter->config_bands & BAND_A) {
1401                 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
1402                 mwifiex_setup_ht_caps(
1403                         &wdev->wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
1404         } else {
1405                 wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
1406         }
1407
1408         /* Initialize cipher suits */
1409         wdev->wiphy->cipher_suites = mwifiex_cipher_suites;
1410         wdev->wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
1411
1412         memcpy(wdev->wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
1413         wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
1414
1415         /* Reserve space for bss band information */
1416         wdev->wiphy->bss_priv_size = sizeof(u8);
1417
1418         wdev->wiphy->reg_notifier = mwifiex_reg_notifier;
1419
1420         /* Set struct mwifiex_private pointer in wiphy_priv */
1421         wdev_priv = wiphy_priv(wdev->wiphy);
1422
1423         *(unsigned long *) wdev_priv = (unsigned long) priv;
1424
1425         set_wiphy_dev(wdev->wiphy, (struct device *) priv->adapter->dev);
1426
1427         ret = wiphy_register(wdev->wiphy);
1428         if (ret < 0) {
1429                 dev_err(priv->adapter->dev, "%s: registering cfg80211 device\n",
1430                                                 __func__);
1431                 wiphy_free(wdev->wiphy);
1432                 kfree(wdev);
1433                 return ret;
1434         } else {
1435                 dev_dbg(priv->adapter->dev,
1436                                 "info: successfully registered wiphy device\n");
1437         }
1438
1439         priv->wdev = wdev;
1440
1441         return ret;
1442 }