mwifiex: get_channel from firmware
[muen/linux.git] / drivers / net / wireless / marvell / mwifiex / cfg80211.c
1 /*
2  * Marvell Wireless LAN device driver: CFG80211
3  *
4  * Copyright (C) 2011-2014, 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 #include "11n.h"
23 #include "wmm.h"
24
25 static char *reg_alpha2;
26 module_param(reg_alpha2, charp, 0);
27
28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
29         {
30                 .max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
31                                    BIT(NL80211_IFTYPE_P2P_GO) |
32                                    BIT(NL80211_IFTYPE_P2P_CLIENT) |
33                                    BIT(NL80211_IFTYPE_AP),
34         },
35 };
36
37 static const struct ieee80211_iface_combination
38 mwifiex_iface_comb_ap_sta = {
39         .limits = mwifiex_ap_sta_limits,
40         .num_different_channels = 1,
41         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
42         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
43         .beacon_int_infra_match = true,
44         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
45                                 BIT(NL80211_CHAN_WIDTH_20) |
46                                 BIT(NL80211_CHAN_WIDTH_40),
47 };
48
49 static const struct ieee80211_iface_combination
50 mwifiex_iface_comb_ap_sta_vht = {
51         .limits = mwifiex_ap_sta_limits,
52         .num_different_channels = 1,
53         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
54         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
55         .beacon_int_infra_match = true,
56         .radar_detect_widths =  BIT(NL80211_CHAN_WIDTH_20_NOHT) |
57                                 BIT(NL80211_CHAN_WIDTH_20) |
58                                 BIT(NL80211_CHAN_WIDTH_40) |
59                                 BIT(NL80211_CHAN_WIDTH_80),
60 };
61
62 static const struct
63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = {
64         .limits = mwifiex_ap_sta_limits,
65         .num_different_channels = 2,
66         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
67         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
68         .beacon_int_infra_match = true,
69 };
70
71 /*
72  * This function maps the nl802.11 channel type into driver channel type.
73  *
74  * The mapping is as follows -
75  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
76  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
77  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
78  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
79  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
80  */
81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
82 {
83         switch (chan_type) {
84         case NL80211_CHAN_NO_HT:
85         case NL80211_CHAN_HT20:
86                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
87         case NL80211_CHAN_HT40PLUS:
88                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
89         case NL80211_CHAN_HT40MINUS:
90                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
91         default:
92                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
93         }
94 }
95
96 /* This function maps IEEE HT secondary channel type to NL80211 channel type
97  */
98 u8 mwifiex_get_chan_type(struct mwifiex_private *priv)
99 {
100         struct mwifiex_channel_band channel_band;
101         int ret;
102
103         ret = mwifiex_get_chan_info(priv, &channel_band);
104
105         if (!ret) {
106                 switch (channel_band.band_config.chan_width) {
107                 case CHAN_BW_20MHZ:
108                         if (IS_11N_ENABLED(priv))
109                                 return NL80211_CHAN_HT20;
110                         else
111                                 return NL80211_CHAN_NO_HT;
112                 case CHAN_BW_40MHZ:
113                         if (channel_band.band_config.chan2_offset ==
114                             SEC_CHAN_ABOVE)
115                                 return NL80211_CHAN_HT40PLUS;
116                         else
117                                 return NL80211_CHAN_HT40MINUS;
118                 default:
119                         return NL80211_CHAN_HT20;
120                 }
121         }
122
123         return NL80211_CHAN_HT20;
124 }
125
126 /*
127  * This function checks whether WEP is set.
128  */
129 static int
130 mwifiex_is_alg_wep(u32 cipher)
131 {
132         switch (cipher) {
133         case WLAN_CIPHER_SUITE_WEP40:
134         case WLAN_CIPHER_SUITE_WEP104:
135                 return 1;
136         default:
137                 break;
138         }
139
140         return 0;
141 }
142
143 /*
144  * This function retrieves the private structure from kernel wiphy structure.
145  */
146 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
147 {
148         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
149 }
150
151 /*
152  * CFG802.11 operation handler to delete a network key.
153  */
154 static int
155 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
156                          u8 key_index, bool pairwise, const u8 *mac_addr)
157 {
158         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
159         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
160         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
161
162         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
163                 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n");
164                 return -EFAULT;
165         }
166
167         mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n");
168         return 0;
169 }
170
171 /*
172  * This function forms an skb for management frame.
173  */
174 static int
175 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
176 {
177         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
178         u16 pkt_len;
179         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
180
181         pkt_len = len + ETH_ALEN;
182
183         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
184                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
185         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
186
187         memcpy(skb_push(skb, sizeof(tx_control)),
188                &tx_control, sizeof(tx_control));
189
190         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
191
192         /* Add packet data and address4 */
193         skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr));
194         skb_put_data(skb, addr, ETH_ALEN);
195         skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr),
196                      len - sizeof(struct ieee80211_hdr_3addr));
197
198         skb->priority = LOW_PRIO_TID;
199         __net_timestamp(skb);
200
201         return 0;
202 }
203
204 /*
205  * CFG802.11 operation handler to transmit a management frame.
206  */
207 static int
208 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
209                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
210 {
211         const u8 *buf = params->buf;
212         size_t len = params->len;
213         struct sk_buff *skb;
214         u16 pkt_len;
215         const struct ieee80211_mgmt *mgmt;
216         struct mwifiex_txinfo *tx_info;
217         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
218
219         if (!buf || !len) {
220                 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n");
221                 return -EFAULT;
222         }
223
224         mgmt = (const struct ieee80211_mgmt *)buf;
225         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
226             ieee80211_is_probe_resp(mgmt->frame_control)) {
227                 /* Since we support offload probe resp, we need to skip probe
228                  * resp in AP or GO mode */
229                 mwifiex_dbg(priv->adapter, INFO,
230                             "info: skip to send probe resp in AP or GO mode\n");
231                 return 0;
232         }
233
234         pkt_len = len + ETH_ALEN;
235         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
236                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
237                             pkt_len + sizeof(pkt_len));
238
239         if (!skb) {
240                 mwifiex_dbg(priv->adapter, ERROR,
241                             "allocate skb failed for management frame\n");
242                 return -ENOMEM;
243         }
244
245         tx_info = MWIFIEX_SKB_TXCB(skb);
246         memset(tx_info, 0, sizeof(*tx_info));
247         tx_info->bss_num = priv->bss_num;
248         tx_info->bss_type = priv->bss_type;
249         tx_info->pkt_len = pkt_len;
250
251         mwifiex_form_mgmt_frame(skb, buf, len);
252         *cookie = prandom_u32() | 1;
253
254         if (ieee80211_is_action(mgmt->frame_control))
255                 skb = mwifiex_clone_skb_for_tx_status(priv,
256                                                       skb,
257                                 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie);
258         else
259                 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true,
260                                         GFP_ATOMIC);
261
262         mwifiex_queue_tx_pkt(priv, skb);
263
264         mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n");
265         return 0;
266 }
267
268 /*
269  * CFG802.11 operation handler to register a mgmt frame.
270  */
271 static void
272 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
273                                      struct wireless_dev *wdev,
274                                      u16 frame_type, bool reg)
275 {
276         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
277         u32 mask;
278
279         if (reg)
280                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
281         else
282                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
283
284         if (mask != priv->mgmt_frame_mask) {
285                 priv->mgmt_frame_mask = mask;
286                 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
287                                  HostCmd_ACT_GEN_SET, 0,
288                                  &priv->mgmt_frame_mask, false);
289                 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n");
290         }
291 }
292
293 /*
294  * CFG802.11 operation handler to remain on channel.
295  */
296 static int
297 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
298                                    struct wireless_dev *wdev,
299                                    struct ieee80211_channel *chan,
300                                    unsigned int duration, u64 *cookie)
301 {
302         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
303         int ret;
304
305         if (!chan || !cookie) {
306                 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n");
307                 return -EINVAL;
308         }
309
310         if (priv->roc_cfg.cookie) {
311                 mwifiex_dbg(priv->adapter, INFO,
312                             "info: ongoing ROC, cookie = 0x%llx\n",
313                             priv->roc_cfg.cookie);
314                 return -EBUSY;
315         }
316
317         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
318                                          duration);
319
320         if (!ret) {
321                 *cookie = prandom_u32() | 1;
322                 priv->roc_cfg.cookie = *cookie;
323                 priv->roc_cfg.chan = *chan;
324
325                 cfg80211_ready_on_channel(wdev, *cookie, chan,
326                                           duration, GFP_ATOMIC);
327
328                 mwifiex_dbg(priv->adapter, INFO,
329                             "info: ROC, cookie = 0x%llx\n", *cookie);
330         }
331
332         return ret;
333 }
334
335 /*
336  * CFG802.11 operation handler to cancel remain on channel.
337  */
338 static int
339 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
340                                           struct wireless_dev *wdev, u64 cookie)
341 {
342         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
343         int ret;
344
345         if (cookie != priv->roc_cfg.cookie)
346                 return -ENOENT;
347
348         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
349                                          &priv->roc_cfg.chan, 0);
350
351         if (!ret) {
352                 cfg80211_remain_on_channel_expired(wdev, cookie,
353                                                    &priv->roc_cfg.chan,
354                                                    GFP_ATOMIC);
355
356                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
357
358                 mwifiex_dbg(priv->adapter, INFO,
359                             "info: cancel ROC, cookie = 0x%llx\n", cookie);
360         }
361
362         return ret;
363 }
364
365 /*
366  * CFG802.11 operation handler to set Tx power.
367  */
368 static int
369 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
370                               struct wireless_dev *wdev,
371                               enum nl80211_tx_power_setting type,
372                               int mbm)
373 {
374         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
375         struct mwifiex_private *priv;
376         struct mwifiex_power_cfg power_cfg;
377         int dbm = MBM_TO_DBM(mbm);
378
379         if (type == NL80211_TX_POWER_FIXED) {
380                 power_cfg.is_power_auto = 0;
381                 power_cfg.power_level = dbm;
382         } else {
383                 power_cfg.is_power_auto = 1;
384         }
385
386         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
387
388         return mwifiex_set_tx_power(priv, &power_cfg);
389 }
390
391 /*
392  * CFG802.11 operation handler to get Tx power.
393  */
394 static int
395 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy,
396                               struct wireless_dev *wdev,
397                               int *dbm)
398 {
399         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
400         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
401                                                         MWIFIEX_BSS_ROLE_ANY);
402         int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR,
403                                    HostCmd_ACT_GEN_GET, 0, NULL, true);
404
405         if (ret < 0)
406                 return ret;
407
408         /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */
409         *dbm = priv->tx_power_level;
410
411         return 0;
412 }
413
414 /*
415  * CFG802.11 operation handler to set Power Save option.
416  *
417  * The timeout value, if provided, is currently ignored.
418  */
419 static int
420 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
421                                 struct net_device *dev,
422                                 bool enabled, int timeout)
423 {
424         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
425         u32 ps_mode;
426
427         if (timeout)
428                 mwifiex_dbg(priv->adapter, INFO,
429                             "info: ignore timeout value for IEEE Power Save\n");
430
431         ps_mode = enabled;
432
433         return mwifiex_drv_set_power(priv, &ps_mode);
434 }
435
436 /*
437  * CFG802.11 operation handler to set the default network key.
438  */
439 static int
440 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
441                                  u8 key_index, bool unicast,
442                                  bool multicast)
443 {
444         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
445
446         /* Return if WEP key not configured */
447         if (!priv->sec_info.wep_enabled)
448                 return 0;
449
450         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
451                 priv->wep_key_curr_index = key_index;
452         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
453                                       NULL, 0)) {
454                 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n");
455                 return -EFAULT;
456         }
457
458         return 0;
459 }
460
461 /*
462  * CFG802.11 operation handler to add a network key.
463  */
464 static int
465 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
466                          u8 key_index, bool pairwise, const u8 *mac_addr,
467                          struct key_params *params)
468 {
469         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
470         struct mwifiex_wep_key *wep_key;
471         static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
472         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
473
474         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
475             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
476              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
477                 if (params->key && params->key_len) {
478                         wep_key = &priv->wep_key[key_index];
479                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
480                         memcpy(wep_key->key_material, params->key,
481                                params->key_len);
482                         wep_key->key_index = key_index;
483                         wep_key->key_length = params->key_len;
484                         priv->sec_info.wep_enabled = 1;
485                 }
486                 return 0;
487         }
488
489         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
490                                key_index, peer_mac, 0)) {
491                 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n");
492                 return -EFAULT;
493         }
494
495         return 0;
496 }
497
498 /*
499  * CFG802.11 operation handler to set default mgmt key.
500  */
501 static int
502 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy,
503                                       struct net_device *netdev,
504                                       u8 key_index)
505 {
506         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
507         struct mwifiex_ds_encrypt_key encrypt_key;
508
509         wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index);
510
511         memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key));
512         encrypt_key.key_len = WLAN_KEY_LEN_CCMP;
513         encrypt_key.key_index = key_index;
514         encrypt_key.is_igtk_def_key = true;
515         eth_broadcast_addr(encrypt_key.mac_addr);
516
517         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL,
518                                 HostCmd_ACT_GEN_SET, true, &encrypt_key, true);
519 }
520
521 /*
522  * This function sends domain information to the firmware.
523  *
524  * The following information are passed to the firmware -
525  *      - Country codes
526  *      - Sub bands (first channel, number of channels, maximum Tx power)
527  */
528 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
529 {
530         u8 no_of_triplet = 0;
531         struct ieee80211_country_ie_triplet *t;
532         u8 no_of_parsed_chan = 0;
533         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
534         u8 i, flag = 0;
535         enum nl80211_band band;
536         struct ieee80211_supported_band *sband;
537         struct ieee80211_channel *ch;
538         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
539         struct mwifiex_private *priv;
540         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
541
542         /* Set country code */
543         domain_info->country_code[0] = adapter->country_code[0];
544         domain_info->country_code[1] = adapter->country_code[1];
545         domain_info->country_code[2] = ' ';
546
547         band = mwifiex_band_to_radio_type(adapter->config_bands);
548         if (!wiphy->bands[band]) {
549                 mwifiex_dbg(adapter, ERROR,
550                             "11D: setting domain info in FW\n");
551                 return -1;
552         }
553
554         sband = wiphy->bands[band];
555
556         for (i = 0; i < sband->n_channels ; i++) {
557                 ch = &sband->channels[i];
558                 if (ch->flags & IEEE80211_CHAN_DISABLED)
559                         continue;
560
561                 if (!flag) {
562                         flag = 1;
563                         first_chan = (u32) ch->hw_value;
564                         next_chan = first_chan;
565                         max_pwr = ch->max_power;
566                         no_of_parsed_chan = 1;
567                         continue;
568                 }
569
570                 if (ch->hw_value == next_chan + 1 &&
571                     ch->max_power == max_pwr) {
572                         next_chan++;
573                         no_of_parsed_chan++;
574                 } else {
575                         t = &domain_info->triplet[no_of_triplet];
576                         t->chans.first_channel = first_chan;
577                         t->chans.num_channels = no_of_parsed_chan;
578                         t->chans.max_power = max_pwr;
579                         no_of_triplet++;
580                         first_chan = (u32) ch->hw_value;
581                         next_chan = first_chan;
582                         max_pwr = ch->max_power;
583                         no_of_parsed_chan = 1;
584                 }
585         }
586
587         if (flag) {
588                 t = &domain_info->triplet[no_of_triplet];
589                 t->chans.first_channel = first_chan;
590                 t->chans.num_channels = no_of_parsed_chan;
591                 t->chans.max_power = max_pwr;
592                 no_of_triplet++;
593         }
594
595         domain_info->no_of_triplet = no_of_triplet;
596
597         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
598
599         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
600                              HostCmd_ACT_GEN_SET, 0, NULL, false)) {
601                 mwifiex_dbg(adapter, INFO,
602                             "11D: setting domain info in FW\n");
603                 return -1;
604         }
605
606         return 0;
607 }
608
609 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy)
610 {
611         struct ieee80211_supported_band *sband;
612         struct ieee80211_channel *chan;
613         unsigned int i;
614
615         if (!wiphy->bands[NL80211_BAND_5GHZ])
616                 return;
617         sband = wiphy->bands[NL80211_BAND_5GHZ];
618
619         for (i = 0; i < sband->n_channels; i++) {
620                 chan = &sband->channels[i];
621                 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) &&
622                     (chan->flags & IEEE80211_CHAN_RADAR))
623                         chan->flags |= IEEE80211_CHAN_NO_IR;
624         }
625 }
626
627 /*
628  * CFG802.11 regulatory domain callback function.
629  *
630  * This function is called when the regulatory domain is changed due to the
631  * following reasons -
632  *      - Set by driver
633  *      - Set by system core
634  *      - Set by user
635  *      - Set bt Country IE
636  */
637 static void mwifiex_reg_notifier(struct wiphy *wiphy,
638                                  struct regulatory_request *request)
639 {
640         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
641         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
642                                                         MWIFIEX_BSS_ROLE_ANY);
643         mwifiex_dbg(adapter, INFO,
644                     "info: cfg80211 regulatory domain callback for %c%c\n",
645                     request->alpha2[0], request->alpha2[1]);
646         mwifiex_reg_apply_radar_flags(wiphy);
647
648         switch (request->initiator) {
649         case NL80211_REGDOM_SET_BY_DRIVER:
650         case NL80211_REGDOM_SET_BY_CORE:
651         case NL80211_REGDOM_SET_BY_USER:
652         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
653                 break;
654         default:
655                 mwifiex_dbg(adapter, ERROR,
656                             "unknown regdom initiator: %d\n",
657                             request->initiator);
658                 return;
659         }
660
661         /* Don't send world or same regdom info to firmware */
662         if (strncmp(request->alpha2, "00", 2) &&
663             strncmp(request->alpha2, adapter->country_code,
664                     sizeof(request->alpha2))) {
665                 memcpy(adapter->country_code, request->alpha2,
666                        sizeof(request->alpha2));
667                 mwifiex_send_domain_info_cmd_fw(wiphy);
668                 mwifiex_dnld_txpwr_table(priv);
669         }
670 }
671
672 /*
673  * This function sets the fragmentation threshold.
674  *
675  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
676  * and MWIFIEX_FRAG_MAX_VALUE.
677  */
678 static int
679 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
680 {
681         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
682             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
683                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
684
685         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
686                                 HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
687                                 &frag_thr, true);
688 }
689
690 /*
691  * This function sets the RTS threshold.
692
693  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
694  * and MWIFIEX_RTS_MAX_VALUE.
695  */
696 static int
697 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
698 {
699         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
700                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
701
702         return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
703                                 HostCmd_ACT_GEN_SET, RTS_THRESH_I,
704                                 &rts_thr, true);
705 }
706
707 /*
708  * CFG802.11 operation handler to set wiphy parameters.
709  *
710  * This function can be used to set the RTS threshold and the
711  * Fragmentation threshold of the driver.
712  */
713 static int
714 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
715 {
716         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
717         struct mwifiex_private *priv;
718         struct mwifiex_uap_bss_param *bss_cfg;
719         int ret;
720
721         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
722
723         switch (priv->bss_role) {
724         case MWIFIEX_BSS_ROLE_UAP:
725                 if (priv->bss_started) {
726                         mwifiex_dbg(adapter, ERROR,
727                                     "cannot change wiphy params when bss started");
728                         return -EINVAL;
729                 }
730
731                 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL);
732                 if (!bss_cfg)
733                         return -ENOMEM;
734
735                 mwifiex_set_sys_config_invalid_data(bss_cfg);
736
737                 if (changed & WIPHY_PARAM_RTS_THRESHOLD)
738                         bss_cfg->rts_threshold = wiphy->rts_threshold;
739                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
740                         bss_cfg->frag_threshold = wiphy->frag_threshold;
741                 if (changed & WIPHY_PARAM_RETRY_LONG)
742                         bss_cfg->retry_limit = wiphy->retry_long;
743
744                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG,
745                                        HostCmd_ACT_GEN_SET,
746                                        UAP_BSS_PARAMS_I, bss_cfg,
747                                        false);
748
749                 kfree(bss_cfg);
750                 if (ret) {
751                         mwifiex_dbg(adapter, ERROR,
752                                     "Failed to set wiphy phy params\n");
753                         return ret;
754                 }
755                 break;
756
757         case MWIFIEX_BSS_ROLE_STA:
758                 if (priv->media_connected) {
759                         mwifiex_dbg(adapter, ERROR,
760                                     "cannot change wiphy params when connected");
761                         return -EINVAL;
762                 }
763                 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
764                         ret = mwifiex_set_rts(priv,
765                                               wiphy->rts_threshold);
766                         if (ret)
767                                 return ret;
768                 }
769                 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
770                         ret = mwifiex_set_frag(priv,
771                                                wiphy->frag_threshold);
772                         if (ret)
773                                 return ret;
774                 }
775                 break;
776         }
777
778         return 0;
779 }
780
781 static int
782 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
783 {
784         u16 mode = P2P_MODE_DISABLE;
785
786         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
787                              HostCmd_ACT_GEN_SET, 0, &mode, true))
788                 return -1;
789
790         return 0;
791 }
792
793 /*
794  * This function initializes the functionalities for P2P client.
795  * The P2P client initialization sequence is:
796  * disable -> device -> client
797  */
798 static int
799 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
800 {
801         u16 mode;
802
803         if (mwifiex_cfg80211_deinit_p2p(priv))
804                 return -1;
805
806         mode = P2P_MODE_DEVICE;
807         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
808                              HostCmd_ACT_GEN_SET, 0, &mode, true))
809                 return -1;
810
811         mode = P2P_MODE_CLIENT;
812         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
813                              HostCmd_ACT_GEN_SET, 0, &mode, true))
814                 return -1;
815
816         return 0;
817 }
818
819 /*
820  * This function initializes the functionalities for P2P GO.
821  * The P2P GO initialization sequence is:
822  * disable -> device -> GO
823  */
824 static int
825 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
826 {
827         u16 mode;
828
829         if (mwifiex_cfg80211_deinit_p2p(priv))
830                 return -1;
831
832         mode = P2P_MODE_DEVICE;
833         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
834                              HostCmd_ACT_GEN_SET, 0, &mode, true))
835                 return -1;
836
837         mode = P2P_MODE_GO;
838         if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG,
839                              HostCmd_ACT_GEN_SET, 0, &mode, true))
840                 return -1;
841
842         return 0;
843 }
844
845 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv)
846 {
847         struct mwifiex_adapter *adapter = priv->adapter;
848         unsigned long flags;
849
850         priv->mgmt_frame_mask = 0;
851         if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG,
852                              HostCmd_ACT_GEN_SET, 0,
853                              &priv->mgmt_frame_mask, false)) {
854                 mwifiex_dbg(adapter, ERROR,
855                             "could not unregister mgmt frame rx\n");
856                 return -1;
857         }
858
859         mwifiex_deauthenticate(priv, NULL);
860
861         spin_lock_irqsave(&adapter->main_proc_lock, flags);
862         adapter->main_locked = true;
863         if (adapter->mwifiex_processing) {
864                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
865                 flush_workqueue(adapter->workqueue);
866         } else {
867                 spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
868         }
869
870         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
871         adapter->rx_locked = true;
872         if (adapter->rx_processing) {
873                 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
874                 flush_workqueue(adapter->rx_workqueue);
875         } else {
876         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
877         }
878
879         mwifiex_free_priv(priv);
880         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
881         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
882         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
883
884         return 0;
885 }
886
887 static int
888 mwifiex_init_new_priv_params(struct mwifiex_private *priv,
889                              struct net_device *dev,
890                              enum nl80211_iftype type)
891 {
892         struct mwifiex_adapter *adapter = priv->adapter;
893         unsigned long flags;
894
895         mwifiex_init_priv(priv);
896
897         priv->bss_mode = type;
898         priv->wdev.iftype = type;
899
900         mwifiex_init_priv_params(priv, priv->netdev);
901         priv->bss_started = 0;
902
903         switch (type) {
904         case NL80211_IFTYPE_STATION:
905         case NL80211_IFTYPE_ADHOC:
906                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
907                 break;
908         case NL80211_IFTYPE_P2P_CLIENT:
909                 priv->bss_role =  MWIFIEX_BSS_ROLE_STA;
910                 break;
911         case NL80211_IFTYPE_P2P_GO:
912                 priv->bss_role =  MWIFIEX_BSS_ROLE_UAP;
913                 break;
914         case NL80211_IFTYPE_AP:
915                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
916                 break;
917         default:
918                 mwifiex_dbg(adapter, ERROR,
919                             "%s: changing to %d not supported\n",
920                             dev->name, type);
921                 return -EOPNOTSUPP;
922         }
923
924         spin_lock_irqsave(&adapter->main_proc_lock, flags);
925         adapter->main_locked = false;
926         spin_unlock_irqrestore(&adapter->main_proc_lock, flags);
927
928         spin_lock_irqsave(&adapter->rx_proc_lock, flags);
929         adapter->rx_locked = false;
930         spin_unlock_irqrestore(&adapter->rx_proc_lock, flags);
931
932         mwifiex_set_mac_address(priv, dev);
933
934         return 0;
935 }
936
937 static int
938 mwifiex_change_vif_to_p2p(struct net_device *dev,
939                           enum nl80211_iftype curr_iftype,
940                           enum nl80211_iftype type,
941                           struct vif_params *params)
942 {
943         struct mwifiex_private *priv;
944         struct mwifiex_adapter *adapter;
945
946         priv = mwifiex_netdev_get_priv(dev);
947
948         if (!priv)
949                 return -1;
950
951         adapter = priv->adapter;
952
953         if (adapter->curr_iface_comb.p2p_intf ==
954             adapter->iface_limit.p2p_intf) {
955                 mwifiex_dbg(adapter, ERROR,
956                             "cannot create multiple P2P ifaces\n");
957                 return -1;
958         }
959
960         mwifiex_dbg(adapter, INFO,
961                     "%s: changing role to p2p\n", dev->name);
962
963         if (mwifiex_deinit_priv_params(priv))
964                 return -1;
965         if (mwifiex_init_new_priv_params(priv, dev, type))
966                 return -1;
967
968         switch (type) {
969         case NL80211_IFTYPE_P2P_CLIENT:
970                 if (mwifiex_cfg80211_init_p2p_client(priv))
971                         return -EFAULT;
972                 break;
973         case NL80211_IFTYPE_P2P_GO:
974                 if (mwifiex_cfg80211_init_p2p_go(priv))
975                         return -EFAULT;
976                 break;
977         default:
978                 mwifiex_dbg(adapter, ERROR,
979                             "%s: changing to %d not supported\n",
980                             dev->name, type);
981                 return -EOPNOTSUPP;
982         }
983
984         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
985                              HostCmd_ACT_GEN_SET, 0, NULL, true))
986                 return -1;
987
988         if (mwifiex_sta_init_cmd(priv, false, false))
989                 return -1;
990
991         switch (curr_iftype) {
992         case NL80211_IFTYPE_STATION:
993         case NL80211_IFTYPE_ADHOC:
994                 adapter->curr_iface_comb.sta_intf--;
995                 break;
996         case NL80211_IFTYPE_AP:
997                 adapter->curr_iface_comb.uap_intf--;
998                 break;
999         default:
1000                 break;
1001         }
1002
1003         adapter->curr_iface_comb.p2p_intf++;
1004         dev->ieee80211_ptr->iftype = type;
1005
1006         return 0;
1007 }
1008
1009 static int
1010 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev,
1011                                 enum nl80211_iftype curr_iftype,
1012                                 enum nl80211_iftype type,
1013                                 struct vif_params *params)
1014 {
1015         struct mwifiex_private *priv;
1016         struct mwifiex_adapter *adapter;
1017
1018         priv = mwifiex_netdev_get_priv(dev);
1019
1020         if (!priv)
1021                 return -1;
1022
1023         adapter = priv->adapter;
1024
1025         if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT &&
1026              curr_iftype != NL80211_IFTYPE_P2P_GO) &&
1027             (adapter->curr_iface_comb.sta_intf ==
1028              adapter->iface_limit.sta_intf)) {
1029                 mwifiex_dbg(adapter, ERROR,
1030                             "cannot create multiple station/adhoc ifaces\n");
1031                 return -1;
1032         }
1033
1034         if (type == NL80211_IFTYPE_STATION)
1035                 mwifiex_dbg(adapter, INFO,
1036                             "%s: changing role to station\n", dev->name);
1037         else
1038                 mwifiex_dbg(adapter, INFO,
1039                             "%s: changing role to adhoc\n", dev->name);
1040
1041         if (mwifiex_deinit_priv_params(priv))
1042                 return -1;
1043         if (mwifiex_init_new_priv_params(priv, dev, type))
1044                 return -1;
1045         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1046                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1047                 return -1;
1048         if (mwifiex_sta_init_cmd(priv, false, false))
1049                 return -1;
1050
1051         switch (curr_iftype) {
1052         case NL80211_IFTYPE_P2P_CLIENT:
1053         case NL80211_IFTYPE_P2P_GO:
1054                 adapter->curr_iface_comb.p2p_intf--;
1055                 break;
1056         case NL80211_IFTYPE_AP:
1057                 adapter->curr_iface_comb.uap_intf--;
1058                 break;
1059         default:
1060                 break;
1061         }
1062
1063         adapter->curr_iface_comb.sta_intf++;
1064         dev->ieee80211_ptr->iftype = type;
1065         return 0;
1066 }
1067
1068 static int
1069 mwifiex_change_vif_to_ap(struct net_device *dev,
1070                          enum nl80211_iftype curr_iftype,
1071                          enum nl80211_iftype type,
1072                          struct vif_params *params)
1073 {
1074         struct mwifiex_private *priv;
1075         struct mwifiex_adapter *adapter;
1076
1077         priv = mwifiex_netdev_get_priv(dev);
1078
1079         if (!priv)
1080                 return -1;
1081
1082         adapter = priv->adapter;
1083
1084         if (adapter->curr_iface_comb.uap_intf ==
1085             adapter->iface_limit.uap_intf) {
1086                 mwifiex_dbg(adapter, ERROR,
1087                             "cannot create multiple AP ifaces\n");
1088                 return -1;
1089         }
1090
1091         mwifiex_dbg(adapter, INFO,
1092                     "%s: changing role to AP\n", dev->name);
1093
1094         if (mwifiex_deinit_priv_params(priv))
1095                 return -1;
1096         if (mwifiex_init_new_priv_params(priv, dev, type))
1097                 return -1;
1098         if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1099                              HostCmd_ACT_GEN_SET, 0, NULL, true))
1100                 return -1;
1101         if (mwifiex_sta_init_cmd(priv, false, false))
1102                 return -1;
1103
1104         switch (curr_iftype) {
1105         case NL80211_IFTYPE_P2P_CLIENT:
1106         case NL80211_IFTYPE_P2P_GO:
1107                 adapter->curr_iface_comb.p2p_intf--;
1108                 break;
1109         case NL80211_IFTYPE_STATION:
1110         case NL80211_IFTYPE_ADHOC:
1111                 adapter->curr_iface_comb.sta_intf--;
1112                 break;
1113         default:
1114                 break;
1115         }
1116
1117         adapter->curr_iface_comb.uap_intf++;
1118         dev->ieee80211_ptr->iftype = type;
1119         return 0;
1120 }
1121 /*
1122  * CFG802.11 operation handler to change interface type.
1123  */
1124 static int
1125 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
1126                                      struct net_device *dev,
1127                                      enum nl80211_iftype type,
1128                                      struct vif_params *params)
1129 {
1130         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1131         enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype;
1132
1133         if (priv->scan_request) {
1134                 mwifiex_dbg(priv->adapter, ERROR,
1135                             "change virtual interface: scan in process\n");
1136                 return -EBUSY;
1137         }
1138
1139         switch (curr_iftype) {
1140         case NL80211_IFTYPE_ADHOC:
1141                 switch (type) {
1142                 case NL80211_IFTYPE_STATION:
1143                         priv->bss_mode = type;
1144                         priv->sec_info.authentication_mode =
1145                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1146                         dev->ieee80211_ptr->iftype = type;
1147                         mwifiex_deauthenticate(priv, NULL);
1148                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1149                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1150                                                 true);
1151                 case NL80211_IFTYPE_P2P_CLIENT:
1152                 case NL80211_IFTYPE_P2P_GO:
1153                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1154                                                          type, params);
1155                 case NL80211_IFTYPE_AP:
1156                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1157                                                         params);
1158                 case NL80211_IFTYPE_UNSPECIFIED:
1159                         mwifiex_dbg(priv->adapter, INFO,
1160                                     "%s: kept type as IBSS\n", dev->name);
1161                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
1162                         return 0;
1163                 default:
1164                         mwifiex_dbg(priv->adapter, ERROR,
1165                                     "%s: changing to %d not supported\n",
1166                                     dev->name, type);
1167                         return -EOPNOTSUPP;
1168                 }
1169                 break;
1170         case NL80211_IFTYPE_STATION:
1171                 switch (type) {
1172                 case NL80211_IFTYPE_ADHOC:
1173                         priv->bss_mode = type;
1174                         priv->sec_info.authentication_mode =
1175                                                    NL80211_AUTHTYPE_OPEN_SYSTEM;
1176                         dev->ieee80211_ptr->iftype = type;
1177                         mwifiex_deauthenticate(priv, NULL);
1178                         return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
1179                                                 HostCmd_ACT_GEN_SET, 0, NULL,
1180                                                 true);
1181                 case NL80211_IFTYPE_P2P_CLIENT:
1182                 case NL80211_IFTYPE_P2P_GO:
1183                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1184                                                          type, params);
1185                 case NL80211_IFTYPE_AP:
1186                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1187                                                         params);
1188                 case NL80211_IFTYPE_UNSPECIFIED:
1189                         mwifiex_dbg(priv->adapter, INFO,
1190                                     "%s: kept type as STA\n", dev->name);
1191                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
1192                         return 0;
1193                 default:
1194                         mwifiex_dbg(priv->adapter, ERROR,
1195                                     "%s: changing to %d not supported\n",
1196                                     dev->name, type);
1197                         return -EOPNOTSUPP;
1198                 }
1199                 break;
1200         case NL80211_IFTYPE_AP:
1201                 switch (type) {
1202                 case NL80211_IFTYPE_ADHOC:
1203                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1204                                                                type, params);
1205                         break;
1206                 case NL80211_IFTYPE_P2P_CLIENT:
1207                 case NL80211_IFTYPE_P2P_GO:
1208                         return mwifiex_change_vif_to_p2p(dev, curr_iftype,
1209                                                          type, params);
1210                 case NL80211_IFTYPE_UNSPECIFIED:
1211                         mwifiex_dbg(priv->adapter, INFO,
1212                                     "%s: kept type as AP\n", dev->name);
1213                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
1214                         return 0;
1215                 default:
1216                         mwifiex_dbg(priv->adapter, ERROR,
1217                                     "%s: changing to %d not supported\n",
1218                                     dev->name, type);
1219                         return -EOPNOTSUPP;
1220                 }
1221                 break;
1222         case NL80211_IFTYPE_P2P_CLIENT:
1223         case NL80211_IFTYPE_P2P_GO:
1224                 switch (type) {
1225                 case NL80211_IFTYPE_STATION:
1226                         if (mwifiex_cfg80211_deinit_p2p(priv))
1227                                 return -EFAULT;
1228                         priv->adapter->curr_iface_comb.p2p_intf--;
1229                         priv->adapter->curr_iface_comb.sta_intf++;
1230                         dev->ieee80211_ptr->iftype = type;
1231                         if (mwifiex_deinit_priv_params(priv))
1232                                 return -1;
1233                         if (mwifiex_init_new_priv_params(priv, dev, type))
1234                                 return -1;
1235                         if (mwifiex_sta_init_cmd(priv, false, false))
1236                                 return -1;
1237                         break;
1238                 case NL80211_IFTYPE_ADHOC:
1239                         if (mwifiex_cfg80211_deinit_p2p(priv))
1240                                 return -EFAULT;
1241                         return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype,
1242                                                                type, params);
1243                         break;
1244                 case NL80211_IFTYPE_AP:
1245                         if (mwifiex_cfg80211_deinit_p2p(priv))
1246                                 return -EFAULT;
1247                         return mwifiex_change_vif_to_ap(dev, curr_iftype, type,
1248                                                         params);
1249                 case NL80211_IFTYPE_UNSPECIFIED:
1250                         mwifiex_dbg(priv->adapter, INFO,
1251                                     "%s: kept type as P2P\n", dev->name);
1252                 case NL80211_IFTYPE_P2P_CLIENT:
1253                 case NL80211_IFTYPE_P2P_GO:
1254                         return 0;
1255                 default:
1256                         mwifiex_dbg(priv->adapter, ERROR,
1257                                     "%s: changing to %d not supported\n",
1258                                     dev->name, type);
1259                         return -EOPNOTSUPP;
1260                 }
1261                 break;
1262         default:
1263                 mwifiex_dbg(priv->adapter, ERROR,
1264                             "%s: unknown iftype: %d\n",
1265                             dev->name, dev->ieee80211_ptr->iftype);
1266                 return -EOPNOTSUPP;
1267         }
1268
1269
1270         return 0;
1271 }
1272
1273 static void
1274 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
1275                      struct rate_info *rate)
1276 {
1277         struct mwifiex_adapter *adapter = priv->adapter;
1278
1279         if (adapter->is_hw_11ac_capable) {
1280                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
1281                 if (tx_htinfo & BIT(0)) {
1282                         /* HT */
1283                         rate->mcs = priv->tx_rate;
1284                         rate->flags |= RATE_INFO_FLAGS_MCS;
1285                 }
1286                 if (tx_htinfo & BIT(1)) {
1287                         /* VHT */
1288                         rate->mcs = priv->tx_rate & 0x0F;
1289                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
1290                 }
1291
1292                 if (tx_htinfo & (BIT(1) | BIT(0))) {
1293                         /* HT or VHT */
1294                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
1295                         case 0:
1296                                 rate->bw = RATE_INFO_BW_20;
1297                                 break;
1298                         case (BIT(2)):
1299                                 rate->bw = RATE_INFO_BW_40;
1300                                 break;
1301                         case (BIT(3)):
1302                                 rate->bw = RATE_INFO_BW_80;
1303                                 break;
1304                         case (BIT(3) | BIT(2)):
1305                                 rate->bw = RATE_INFO_BW_160;
1306                                 break;
1307                         }
1308
1309                         if (tx_htinfo & BIT(4))
1310                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1311
1312                         if ((priv->tx_rate >> 4) == 1)
1313                                 rate->nss = 2;
1314                         else
1315                                 rate->nss = 1;
1316                 }
1317         } else {
1318                 /*
1319                  * Bit 0 in tx_htinfo indicates that current Tx rate
1320                  * is 11n rate. Valid MCS index values for us are 0 to 15.
1321                  */
1322                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
1323                         rate->mcs = priv->tx_rate;
1324                         rate->flags |= RATE_INFO_FLAGS_MCS;
1325                         rate->bw = RATE_INFO_BW_20;
1326                         if (tx_htinfo & BIT(1))
1327                                 rate->bw = RATE_INFO_BW_40;
1328                         if (tx_htinfo & BIT(2))
1329                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
1330                 }
1331         }
1332 }
1333
1334 /*
1335  * This function dumps the station information on a buffer.
1336  *
1337  * The following information are shown -
1338  *      - Total bytes transmitted
1339  *      - Total bytes received
1340  *      - Total packets transmitted
1341  *      - Total packets received
1342  *      - Signal quality level
1343  *      - Transmission rate
1344  */
1345 static int
1346 mwifiex_dump_station_info(struct mwifiex_private *priv,
1347                           struct mwifiex_sta_node *node,
1348                           struct station_info *sinfo)
1349 {
1350         u32 rate;
1351
1352         sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) |
1353                         BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) |
1354                         BIT(NL80211_STA_INFO_TX_BITRATE) |
1355                         BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG);
1356
1357         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1358                 if (!node)
1359                         return -ENOENT;
1360
1361                 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) |
1362                                 BIT(NL80211_STA_INFO_TX_FAILED);
1363                 sinfo->inactive_time =
1364                         jiffies_to_msecs(jiffies - node->stats.last_rx);
1365
1366                 sinfo->signal = node->stats.rssi;
1367                 sinfo->signal_avg = node->stats.rssi;
1368                 sinfo->rx_bytes = node->stats.rx_bytes;
1369                 sinfo->tx_bytes = node->stats.tx_bytes;
1370                 sinfo->rx_packets = node->stats.rx_packets;
1371                 sinfo->tx_packets = node->stats.tx_packets;
1372                 sinfo->tx_failed = node->stats.tx_failed;
1373
1374                 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo,
1375                                      &sinfo->txrate);
1376                 sinfo->txrate.legacy = node->stats.last_tx_rate * 5;
1377
1378                 return 0;
1379         }
1380
1381         /* Get signal information from the firmware */
1382         if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO,
1383                              HostCmd_ACT_GEN_GET, 0, NULL, true)) {
1384                 mwifiex_dbg(priv->adapter, ERROR,
1385                             "failed to get signal information\n");
1386                 return -EFAULT;
1387         }
1388
1389         if (mwifiex_drv_get_data_rate(priv, &rate)) {
1390                 mwifiex_dbg(priv->adapter, ERROR,
1391                             "getting data rate error\n");
1392                 return -EFAULT;
1393         }
1394
1395         /* Get DTIM period information from firmware */
1396         mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB,
1397                          HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
1398                          &priv->dtim_period, true);
1399
1400         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
1401
1402         sinfo->signal_avg = priv->bcn_rssi_avg;
1403         sinfo->rx_bytes = priv->stats.rx_bytes;
1404         sinfo->tx_bytes = priv->stats.tx_bytes;
1405         sinfo->rx_packets = priv->stats.rx_packets;
1406         sinfo->tx_packets = priv->stats.tx_packets;
1407         sinfo->signal = priv->bcn_rssi_avg;
1408         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
1409         sinfo->txrate.legacy = rate * 5;
1410
1411         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1412                 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM);
1413                 sinfo->bss_param.flags = 0;
1414                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1415                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
1416                         sinfo->bss_param.flags |=
1417                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
1418                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
1419                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
1420                         sinfo->bss_param.flags |=
1421                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
1422                 sinfo->bss_param.dtim_period = priv->dtim_period;
1423                 sinfo->bss_param.beacon_interval =
1424                         priv->curr_bss_params.bss_descriptor.beacon_period;
1425         }
1426
1427         return 0;
1428 }
1429
1430 /*
1431  * CFG802.11 operation handler to get station information.
1432  *
1433  * This function only works in connected mode, and dumps the
1434  * requested station information, if available.
1435  */
1436 static int
1437 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
1438                              const u8 *mac, struct station_info *sinfo)
1439 {
1440         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1441
1442         if (!priv->media_connected)
1443                 return -ENOENT;
1444         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1445                 return -ENOENT;
1446
1447         return mwifiex_dump_station_info(priv, NULL, sinfo);
1448 }
1449
1450 /*
1451  * CFG802.11 operation handler to dump station information.
1452  */
1453 static int
1454 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1455                               int idx, u8 *mac, struct station_info *sinfo)
1456 {
1457         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1458         static struct mwifiex_sta_node *node;
1459
1460         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1461             priv->media_connected && idx == 0) {
1462                 ether_addr_copy(mac, priv->cfg_bssid);
1463                 return mwifiex_dump_station_info(priv, NULL, sinfo);
1464         } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) {
1465                 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST,
1466                                  HostCmd_ACT_GEN_GET, 0, NULL, true);
1467
1468                 if (node && (&node->list == &priv->sta_list)) {
1469                         node = NULL;
1470                         return -ENOENT;
1471                 }
1472
1473                 node = list_prepare_entry(node, &priv->sta_list, list);
1474                 list_for_each_entry_continue(node, &priv->sta_list, list) {
1475                         ether_addr_copy(mac, node->mac_addr);
1476                         return mwifiex_dump_station_info(priv, node, sinfo);
1477                 }
1478         }
1479
1480         return -ENOENT;
1481 }
1482
1483 static int
1484 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
1485                              int idx, struct survey_info *survey)
1486 {
1487         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1488         struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats;
1489         enum nl80211_band band;
1490
1491         mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx);
1492
1493         memset(survey, 0, sizeof(struct survey_info));
1494
1495         if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) &&
1496             priv->media_connected && idx == 0) {
1497                         u8 curr_bss_band = priv->curr_bss_params.band;
1498                         u32 chan = priv->curr_bss_params.bss_descriptor.channel;
1499
1500                         band = mwifiex_band_to_radio_type(curr_bss_band);
1501                         survey->channel = ieee80211_get_channel(wiphy,
1502                                 ieee80211_channel_to_frequency(chan, band));
1503
1504                         if (priv->bcn_nf_last) {
1505                                 survey->filled = SURVEY_INFO_NOISE_DBM;
1506                                 survey->noise = priv->bcn_nf_last;
1507                         }
1508                         return 0;
1509         }
1510
1511         if (idx >= priv->adapter->num_in_chan_stats)
1512                 return -ENOENT;
1513
1514         if (!pchan_stats[idx].cca_scan_dur)
1515                 return 0;
1516
1517         band = pchan_stats[idx].bandcfg;
1518         survey->channel = ieee80211_get_channel(wiphy,
1519             ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band));
1520         survey->filled = SURVEY_INFO_NOISE_DBM |
1521                          SURVEY_INFO_TIME |
1522                          SURVEY_INFO_TIME_BUSY;
1523         survey->noise = pchan_stats[idx].noise;
1524         survey->time = pchan_stats[idx].cca_scan_dur;
1525         survey->time_busy = pchan_stats[idx].cca_busy_dur;
1526
1527         return 0;
1528 }
1529
1530 /* Supported rates to be advertised to the cfg80211 */
1531 static struct ieee80211_rate mwifiex_rates[] = {
1532         {.bitrate = 10, .hw_value = 2, },
1533         {.bitrate = 20, .hw_value = 4, },
1534         {.bitrate = 55, .hw_value = 11, },
1535         {.bitrate = 110, .hw_value = 22, },
1536         {.bitrate = 60, .hw_value = 12, },
1537         {.bitrate = 90, .hw_value = 18, },
1538         {.bitrate = 120, .hw_value = 24, },
1539         {.bitrate = 180, .hw_value = 36, },
1540         {.bitrate = 240, .hw_value = 48, },
1541         {.bitrate = 360, .hw_value = 72, },
1542         {.bitrate = 480, .hw_value = 96, },
1543         {.bitrate = 540, .hw_value = 108, },
1544 };
1545
1546 /* Channel definitions to be advertised to cfg80211 */
1547 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1548         {.center_freq = 2412, .hw_value = 1, },
1549         {.center_freq = 2417, .hw_value = 2, },
1550         {.center_freq = 2422, .hw_value = 3, },
1551         {.center_freq = 2427, .hw_value = 4, },
1552         {.center_freq = 2432, .hw_value = 5, },
1553         {.center_freq = 2437, .hw_value = 6, },
1554         {.center_freq = 2442, .hw_value = 7, },
1555         {.center_freq = 2447, .hw_value = 8, },
1556         {.center_freq = 2452, .hw_value = 9, },
1557         {.center_freq = 2457, .hw_value = 10, },
1558         {.center_freq = 2462, .hw_value = 11, },
1559         {.center_freq = 2467, .hw_value = 12, },
1560         {.center_freq = 2472, .hw_value = 13, },
1561         {.center_freq = 2484, .hw_value = 14, },
1562 };
1563
1564 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1565         .channels = mwifiex_channels_2ghz,
1566         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1567         .bitrates = mwifiex_rates,
1568         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1569 };
1570
1571 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1572         {.center_freq = 5040, .hw_value = 8, },
1573         {.center_freq = 5060, .hw_value = 12, },
1574         {.center_freq = 5080, .hw_value = 16, },
1575         {.center_freq = 5170, .hw_value = 34, },
1576         {.center_freq = 5190, .hw_value = 38, },
1577         {.center_freq = 5210, .hw_value = 42, },
1578         {.center_freq = 5230, .hw_value = 46, },
1579         {.center_freq = 5180, .hw_value = 36, },
1580         {.center_freq = 5200, .hw_value = 40, },
1581         {.center_freq = 5220, .hw_value = 44, },
1582         {.center_freq = 5240, .hw_value = 48, },
1583         {.center_freq = 5260, .hw_value = 52, },
1584         {.center_freq = 5280, .hw_value = 56, },
1585         {.center_freq = 5300, .hw_value = 60, },
1586         {.center_freq = 5320, .hw_value = 64, },
1587         {.center_freq = 5500, .hw_value = 100, },
1588         {.center_freq = 5520, .hw_value = 104, },
1589         {.center_freq = 5540, .hw_value = 108, },
1590         {.center_freq = 5560, .hw_value = 112, },
1591         {.center_freq = 5580, .hw_value = 116, },
1592         {.center_freq = 5600, .hw_value = 120, },
1593         {.center_freq = 5620, .hw_value = 124, },
1594         {.center_freq = 5640, .hw_value = 128, },
1595         {.center_freq = 5660, .hw_value = 132, },
1596         {.center_freq = 5680, .hw_value = 136, },
1597         {.center_freq = 5700, .hw_value = 140, },
1598         {.center_freq = 5745, .hw_value = 149, },
1599         {.center_freq = 5765, .hw_value = 153, },
1600         {.center_freq = 5785, .hw_value = 157, },
1601         {.center_freq = 5805, .hw_value = 161, },
1602         {.center_freq = 5825, .hw_value = 165, },
1603 };
1604
1605 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1606         .channels = mwifiex_channels_5ghz,
1607         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1608         .bitrates = mwifiex_rates + 4,
1609         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1610 };
1611
1612
1613 /* Supported crypto cipher suits to be advertised to cfg80211 */
1614 static const u32 mwifiex_cipher_suites[] = {
1615         WLAN_CIPHER_SUITE_WEP40,
1616         WLAN_CIPHER_SUITE_WEP104,
1617         WLAN_CIPHER_SUITE_TKIP,
1618         WLAN_CIPHER_SUITE_CCMP,
1619         WLAN_CIPHER_SUITE_SMS4,
1620         WLAN_CIPHER_SUITE_AES_CMAC,
1621 };
1622
1623 /* Supported mgmt frame types to be advertised to cfg80211 */
1624 static const struct ieee80211_txrx_stypes
1625 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1626         [NL80211_IFTYPE_STATION] = {
1627                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1628                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1629                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1630                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1631         },
1632         [NL80211_IFTYPE_AP] = {
1633                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1634                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1635                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1636                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1637         },
1638         [NL80211_IFTYPE_P2P_CLIENT] = {
1639                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1640                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1641                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1642                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1643         },
1644         [NL80211_IFTYPE_P2P_GO] = {
1645                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1646                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1647                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1648                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1649         },
1650 };
1651
1652 /*
1653  * CFG802.11 operation handler for setting bit rates.
1654  *
1655  * Function configures data rates to firmware using bitrate mask
1656  * provided by cfg80211.
1657  */
1658 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1659                                 struct net_device *dev,
1660                                 const u8 *peer,
1661                                 const struct cfg80211_bitrate_mask *mask)
1662 {
1663         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1664         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1665         enum nl80211_band band;
1666         struct mwifiex_adapter *adapter = priv->adapter;
1667
1668         if (!priv->media_connected) {
1669                 mwifiex_dbg(adapter, ERROR,
1670                             "Can not set Tx data rate in disconnected state\n");
1671                 return -EINVAL;
1672         }
1673
1674         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1675
1676         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1677
1678         /* Fill HR/DSSS rates. */
1679         if (band == NL80211_BAND_2GHZ)
1680                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1681
1682         /* Fill OFDM rates */
1683         if (band == NL80211_BAND_2GHZ)
1684                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1685         else
1686                 bitmap_rates[1] = mask->control[band].legacy;
1687
1688         /* Fill HT MCS rates */
1689         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1690         if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1691                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1692
1693        /* Fill VHT MCS rates */
1694         if (adapter->fw_api_ver == MWIFIEX_FW_V15) {
1695                 bitmap_rates[10] = mask->control[band].vht_mcs[0];
1696                 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1697                         bitmap_rates[11] = mask->control[band].vht_mcs[1];
1698         }
1699
1700         return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG,
1701                                 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true);
1702 }
1703
1704 /*
1705  * CFG802.11 operation handler for connection quality monitoring.
1706  *
1707  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1708  * events to FW.
1709  */
1710 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1711                                                 struct net_device *dev,
1712                                                 s32 rssi_thold, u32 rssi_hyst)
1713 {
1714         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1715         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1716
1717         priv->cqm_rssi_thold = rssi_thold;
1718         priv->cqm_rssi_hyst = rssi_hyst;
1719
1720         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1721         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1722
1723         /* Subscribe/unsubscribe low and high rssi events */
1724         if (rssi_thold && rssi_hyst) {
1725                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1726                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1727                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1728                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1729                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1730                 return mwifiex_send_cmd(priv,
1731                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1732                                         0, 0, &subsc_evt, true);
1733         } else {
1734                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1735                 return mwifiex_send_cmd(priv,
1736                                         HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1737                                         0, 0, &subsc_evt, true);
1738         }
1739
1740         return 0;
1741 }
1742
1743 /* cfg80211 operation handler for change_beacon.
1744  * Function retrieves and sets modified management IEs to FW.
1745  */
1746 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1747                                           struct net_device *dev,
1748                                           struct cfg80211_beacon_data *data)
1749 {
1750         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1751         struct mwifiex_adapter *adapter = priv->adapter;
1752
1753         mwifiex_cancel_scan(adapter);
1754
1755         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1756                 mwifiex_dbg(priv->adapter, ERROR,
1757                             "%s: bss_type mismatched\n", __func__);
1758                 return -EINVAL;
1759         }
1760
1761         if (!priv->bss_started) {
1762                 mwifiex_dbg(priv->adapter, ERROR,
1763                             "%s: bss not started\n", __func__);
1764                 return -EINVAL;
1765         }
1766
1767         if (mwifiex_set_mgmt_ies(priv, data)) {
1768                 mwifiex_dbg(priv->adapter, ERROR,
1769                             "%s: setting mgmt ies failed\n", __func__);
1770                 return -EFAULT;
1771         }
1772
1773         return 0;
1774 }
1775
1776 /* cfg80211 operation handler for del_station.
1777  * Function deauthenticates station which value is provided in mac parameter.
1778  * If mac is NULL/broadcast, all stations in associated station list are
1779  * deauthenticated. If bss is not started or there are no stations in
1780  * associated stations list, no action is taken.
1781  */
1782 static int
1783 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1784                              struct station_del_parameters *params)
1785 {
1786         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1787         struct mwifiex_sta_node *sta_node;
1788         u8 deauth_mac[ETH_ALEN];
1789         unsigned long flags;
1790
1791         if (!priv->bss_started && priv->wdev.cac_started) {
1792                 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__);
1793                 mwifiex_abort_cac(priv);
1794         }
1795
1796         if (list_empty(&priv->sta_list) || !priv->bss_started)
1797                 return 0;
1798
1799         if (!params->mac || is_broadcast_ether_addr(params->mac))
1800                 return 0;
1801
1802         mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n",
1803                     __func__, params->mac);
1804
1805         eth_zero_addr(deauth_mac);
1806
1807         spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1808         sta_node = mwifiex_get_sta_entry(priv, params->mac);
1809         if (sta_node)
1810                 ether_addr_copy(deauth_mac, params->mac);
1811         spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1812
1813         if (is_valid_ether_addr(deauth_mac)) {
1814                 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH,
1815                                      HostCmd_ACT_GEN_SET, 0,
1816                                      deauth_mac, true))
1817                         return -1;
1818         }
1819
1820         return 0;
1821 }
1822
1823 static int
1824 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1825 {
1826         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1827         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1828                                                         MWIFIEX_BSS_ROLE_ANY);
1829         struct mwifiex_ds_ant_cfg ant_cfg;
1830
1831         if (!tx_ant || !rx_ant)
1832                 return -EOPNOTSUPP;
1833
1834         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1835                 /* Not a MIMO chip. User should provide specific antenna number
1836                  * for Tx/Rx path or enable all antennas for diversity
1837                  */
1838                 if (tx_ant != rx_ant)
1839                         return -EOPNOTSUPP;
1840
1841                 if ((tx_ant & (tx_ant - 1)) &&
1842                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1843                         return -EOPNOTSUPP;
1844
1845                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1846                     (priv->adapter->number_of_antenna > 1)) {
1847                         tx_ant = RF_ANTENNA_AUTO;
1848                         rx_ant = RF_ANTENNA_AUTO;
1849                 }
1850         } else {
1851                 struct ieee80211_sta_ht_cap *ht_info;
1852                 int rx_mcs_supp;
1853                 enum nl80211_band band;
1854
1855                 if ((tx_ant == 0x1 && rx_ant == 0x1)) {
1856                         adapter->user_dev_mcs_support = HT_STREAM_1X1;
1857                         if (adapter->is_hw_11ac_capable)
1858                                 adapter->usr_dot_11ac_mcs_support =
1859                                                 MWIFIEX_11AC_MCS_MAP_1X1;
1860                 } else {
1861                         adapter->user_dev_mcs_support = HT_STREAM_2X2;
1862                         if (adapter->is_hw_11ac_capable)
1863                                 adapter->usr_dot_11ac_mcs_support =
1864                                                 MWIFIEX_11AC_MCS_MAP_2X2;
1865                 }
1866
1867                 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1868                         if (!adapter->wiphy->bands[band])
1869                                 continue;
1870
1871                         ht_info = &adapter->wiphy->bands[band]->ht_cap;
1872                         rx_mcs_supp =
1873                                 GET_RXMCSSUPP(adapter->user_dev_mcs_support);
1874                         memset(&ht_info->mcs, 0, adapter->number_of_antenna);
1875                         memset(&ht_info->mcs, 0xff, rx_mcs_supp);
1876                 }
1877         }
1878
1879         ant_cfg.tx_ant = tx_ant;
1880         ant_cfg.rx_ant = rx_ant;
1881
1882         return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1883                                 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true);
1884 }
1885
1886 static int
1887 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1888 {
1889         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1890         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1891                                                         MWIFIEX_BSS_ROLE_ANY);
1892         mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA,
1893                          HostCmd_ACT_GEN_GET, 0, NULL, true);
1894
1895         *tx_ant = priv->tx_ant;
1896         *rx_ant = priv->rx_ant;
1897
1898         return 0;
1899 }
1900
1901 /* cfg80211 operation handler for stop ap.
1902  * Function stops BSS running at uAP interface.
1903  */
1904 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1905 {
1906         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1907
1908         mwifiex_abort_cac(priv);
1909
1910         if (mwifiex_del_mgmt_ies(priv))
1911                 mwifiex_dbg(priv->adapter, ERROR,
1912                             "Failed to delete mgmt IEs!\n");
1913
1914         priv->ap_11n_enabled = 0;
1915         memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg));
1916
1917         if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP,
1918                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1919                 mwifiex_dbg(priv->adapter, ERROR,
1920                             "Failed to stop the BSS\n");
1921                 return -1;
1922         }
1923
1924         if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET,
1925                              HostCmd_ACT_GEN_SET, 0, NULL, true)) {
1926                 mwifiex_dbg(priv->adapter, ERROR,
1927                             "Failed to reset BSS\n");
1928                 return -1;
1929         }
1930
1931         if (netif_carrier_ok(priv->netdev))
1932                 netif_carrier_off(priv->netdev);
1933         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
1934
1935         return 0;
1936 }
1937
1938 /* cfg80211 operation handler for start_ap.
1939  * Function sets beacon period, DTIM period, SSID and security into
1940  * AP config structure.
1941  * AP is configured with these settings and BSS is started.
1942  */
1943 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1944                                      struct net_device *dev,
1945                                      struct cfg80211_ap_settings *params)
1946 {
1947         struct mwifiex_uap_bss_param *bss_cfg;
1948         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1949
1950         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1951                 return -1;
1952
1953         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1954         if (!bss_cfg)
1955                 return -ENOMEM;
1956
1957         mwifiex_set_sys_config_invalid_data(bss_cfg);
1958
1959         if (params->beacon_interval)
1960                 bss_cfg->beacon_period = params->beacon_interval;
1961         if (params->dtim_period)
1962                 bss_cfg->dtim_period = params->dtim_period;
1963
1964         if (params->ssid && params->ssid_len) {
1965                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1966                 bss_cfg->ssid.ssid_len = params->ssid_len;
1967         }
1968         if (params->inactivity_timeout > 0) {
1969                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1970                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1971                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1972         }
1973
1974         switch (params->hidden_ssid) {
1975         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1976                 bss_cfg->bcast_ssid_ctl = 1;
1977                 break;
1978         case NL80211_HIDDEN_SSID_ZERO_LEN:
1979                 bss_cfg->bcast_ssid_ctl = 0;
1980                 break;
1981         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1982                 /* firmware doesn't support this type of hidden SSID */
1983         default:
1984                 kfree(bss_cfg);
1985                 return -EINVAL;
1986         }
1987
1988         mwifiex_uap_set_channel(priv, bss_cfg, params->chandef);
1989         mwifiex_set_uap_rates(bss_cfg, params);
1990
1991         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1992                 mwifiex_dbg(priv->adapter, ERROR,
1993                             "Failed to parse security parameters!\n");
1994                 goto out;
1995         }
1996
1997         mwifiex_set_ht_params(priv, bss_cfg, params);
1998
1999         if (priv->adapter->is_hw_11ac_capable) {
2000                 mwifiex_set_vht_params(priv, bss_cfg, params);
2001                 mwifiex_set_vht_width(priv, params->chandef.width,
2002                                       priv->ap_11ac_enabled);
2003         }
2004
2005         if (priv->ap_11ac_enabled)
2006                 mwifiex_set_11ac_ba_params(priv);
2007         else
2008                 mwifiex_set_ba_params(priv);
2009
2010         mwifiex_set_wmm_params(priv, bss_cfg, params);
2011
2012         if (mwifiex_is_11h_active(priv))
2013                 mwifiex_set_tpc_params(priv, bss_cfg, params);
2014
2015         if (mwifiex_is_11h_active(priv) &&
2016             !cfg80211_chandef_dfs_required(wiphy, &params->chandef,
2017                                            priv->bss_mode)) {
2018                 mwifiex_dbg(priv->adapter, INFO,
2019                             "Disable 11h extensions in FW\n");
2020                 if (mwifiex_11h_activate(priv, false)) {
2021                         mwifiex_dbg(priv->adapter, ERROR,
2022                                     "Failed to disable 11h extensions!!");
2023                         goto out;
2024                 }
2025                 priv->state_11h.is_11h_active = false;
2026         }
2027
2028         mwifiex_config_uap_11d(priv, &params->beacon);
2029
2030         if (mwifiex_config_start_uap(priv, bss_cfg)) {
2031                 mwifiex_dbg(priv->adapter, ERROR,
2032                             "Failed to start AP\n");
2033                 goto out;
2034         }
2035
2036         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
2037                 goto out;
2038
2039         if (!netif_carrier_ok(priv->netdev))
2040                 netif_carrier_on(priv->netdev);
2041         mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter);
2042
2043         memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg));
2044         kfree(bss_cfg);
2045         return 0;
2046
2047 out:
2048         kfree(bss_cfg);
2049         return -1;
2050 }
2051
2052 /*
2053  * CFG802.11 operation handler for disconnection request.
2054  *
2055  * This function does not work when there is already a disconnection
2056  * procedure going on.
2057  */
2058 static int
2059 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
2060                             u16 reason_code)
2061 {
2062         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2063
2064         if (!mwifiex_stop_bg_scan(priv))
2065                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2066
2067         if (mwifiex_deauthenticate(priv, NULL))
2068                 return -EFAULT;
2069
2070         eth_zero_addr(priv->cfg_bssid);
2071         priv->hs2_enabled = false;
2072
2073         return 0;
2074 }
2075
2076 /*
2077  * This function informs the CFG802.11 subsystem of a new IBSS.
2078  *
2079  * The following information are sent to the CFG802.11 subsystem
2080  * to register the new IBSS. If we do not register the new IBSS,
2081  * a kernel panic will result.
2082  *      - SSID
2083  *      - SSID length
2084  *      - BSSID
2085  *      - Channel
2086  */
2087 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
2088 {
2089         struct ieee80211_channel *chan;
2090         struct mwifiex_bss_info bss_info;
2091         struct cfg80211_bss *bss;
2092         int ie_len;
2093         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
2094         enum nl80211_band band;
2095
2096         if (mwifiex_get_bss_info(priv, &bss_info))
2097                 return -1;
2098
2099         ie_buf[0] = WLAN_EID_SSID;
2100         ie_buf[1] = bss_info.ssid.ssid_len;
2101
2102         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
2103                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
2104         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
2105
2106         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
2107         chan = ieee80211_get_channel(priv->wdev.wiphy,
2108                         ieee80211_channel_to_frequency(bss_info.bss_chan,
2109                                                        band));
2110
2111         bss = cfg80211_inform_bss(priv->wdev.wiphy, chan,
2112                                   CFG80211_BSS_FTYPE_UNKNOWN,
2113                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
2114                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
2115         if (bss) {
2116                 cfg80211_put_bss(priv->wdev.wiphy, bss);
2117                 ether_addr_copy(priv->cfg_bssid, bss_info.bssid);
2118         }
2119
2120         return 0;
2121 }
2122
2123 /*
2124  * This function connects with a BSS.
2125  *
2126  * This function handles both Infra and Ad-Hoc modes. It also performs
2127  * validity checking on the provided parameters, disconnects from the
2128  * current BSS (if any), sets up the association/scan parameters,
2129  * including security settings, and performs specific SSID scan before
2130  * trying to connect.
2131  *
2132  * For Infra mode, the function returns failure if the specified SSID
2133  * is not found in scan table. However, for Ad-Hoc mode, it can create
2134  * the IBSS if it does not exist. On successful completion in either case,
2135  * the function notifies the CFG802.11 subsystem of the new BSS connection.
2136  */
2137 static int
2138 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len,
2139                        const u8 *ssid, const u8 *bssid, int mode,
2140                        struct ieee80211_channel *channel,
2141                        struct cfg80211_connect_params *sme, bool privacy)
2142 {
2143         struct cfg80211_ssid req_ssid;
2144         int ret, auth_type = 0;
2145         struct cfg80211_bss *bss = NULL;
2146         u8 is_scanning_required = 0;
2147
2148         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
2149
2150         req_ssid.ssid_len = ssid_len;
2151         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2152                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2153                 return -EINVAL;
2154         }
2155
2156         memcpy(req_ssid.ssid, ssid, ssid_len);
2157         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
2158                 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n");
2159                 return -EINVAL;
2160         }
2161
2162         /* As this is new association, clear locally stored
2163          * keys and security related flags */
2164         priv->sec_info.wpa_enabled = false;
2165         priv->sec_info.wpa2_enabled = false;
2166         priv->wep_key_curr_index = 0;
2167         priv->sec_info.encryption_mode = 0;
2168         priv->sec_info.is_authtype_auto = 0;
2169         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
2170
2171         if (mode == NL80211_IFTYPE_ADHOC) {
2172                 u16 enable = true;
2173
2174                 /* set ibss coalescing_status */
2175                 ret = mwifiex_send_cmd(
2176                                 priv,
2177                                 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS,
2178                                 HostCmd_ACT_GEN_SET, 0, &enable, true);
2179                 if (ret)
2180                         return ret;
2181
2182                 /* "privacy" is set only for ad-hoc mode */
2183                 if (privacy) {
2184                         /*
2185                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
2186                          * the firmware can find a matching network from the
2187                          * scan. The cfg80211 does not give us the encryption
2188                          * mode at this stage so just setting it to WEP here.
2189                          */
2190                         priv->sec_info.encryption_mode =
2191                                         WLAN_CIPHER_SUITE_WEP104;
2192                         priv->sec_info.authentication_mode =
2193                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
2194                 }
2195
2196                 goto done;
2197         }
2198
2199         /* Now handle infra mode. "sme" is valid for infra mode only */
2200         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
2201                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
2202                 priv->sec_info.is_authtype_auto = 1;
2203         } else {
2204                 auth_type = sme->auth_type;
2205         }
2206
2207         if (sme->crypto.n_ciphers_pairwise) {
2208                 priv->sec_info.encryption_mode =
2209                                                 sme->crypto.ciphers_pairwise[0];
2210                 priv->sec_info.authentication_mode = auth_type;
2211         }
2212
2213         if (sme->crypto.cipher_group) {
2214                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
2215                 priv->sec_info.authentication_mode = auth_type;
2216         }
2217         if (sme->ie)
2218                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
2219
2220         if (sme->key) {
2221                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
2222                         mwifiex_dbg(priv->adapter, INFO,
2223                                     "info: setting wep encryption\t"
2224                                     "with key len %d\n", sme->key_len);
2225                         priv->wep_key_curr_index = sme->key_idx;
2226                         ret = mwifiex_set_encode(priv, NULL, sme->key,
2227                                                  sme->key_len, sme->key_idx,
2228                                                  NULL, 0);
2229                 }
2230         }
2231 done:
2232         /*
2233          * Scan entries are valid for some time (15 sec). So we can save one
2234          * active scan time if we just try cfg80211_get_bss first. If it fails
2235          * then request scan and cfg80211_get_bss() again for final output.
2236          */
2237         while (1) {
2238                 if (is_scanning_required) {
2239                         /* Do specific SSID scanning */
2240                         if (mwifiex_request_scan(priv, &req_ssid)) {
2241                                 mwifiex_dbg(priv->adapter, ERROR, "scan error\n");
2242                                 return -EFAULT;
2243                         }
2244                 }
2245
2246                 /* Find the BSS we want using available scan results */
2247                 if (mode == NL80211_IFTYPE_ADHOC)
2248                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2249                                                bssid, ssid, ssid_len,
2250                                                IEEE80211_BSS_TYPE_IBSS,
2251                                                IEEE80211_PRIVACY_ANY);
2252                 else
2253                         bss = cfg80211_get_bss(priv->wdev.wiphy, channel,
2254                                                bssid, ssid, ssid_len,
2255                                                IEEE80211_BSS_TYPE_ESS,
2256                                                IEEE80211_PRIVACY_ANY);
2257
2258                 if (!bss) {
2259                         if (is_scanning_required) {
2260                                 mwifiex_dbg(priv->adapter, WARN,
2261                                             "assoc: requested bss not found in scan results\n");
2262                                 break;
2263                         }
2264                         is_scanning_required = 1;
2265                 } else {
2266                         mwifiex_dbg(priv->adapter, MSG,
2267                                     "info: trying to associate to '%.*s' bssid %pM\n",
2268                                     req_ssid.ssid_len, (char *)req_ssid.ssid,
2269                                     bss->bssid);
2270                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
2271                         break;
2272                 }
2273         }
2274
2275         ret = mwifiex_bss_start(priv, bss, &req_ssid);
2276         if (ret)
2277                 return ret;
2278
2279         if (mode == NL80211_IFTYPE_ADHOC) {
2280                 /* Inform the BSS information to kernel, otherwise
2281                  * kernel will give a panic after successful assoc */
2282                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
2283                         return -EFAULT;
2284         }
2285
2286         return ret;
2287 }
2288
2289 /*
2290  * CFG802.11 operation handler for association request.
2291  *
2292  * This function does not work when the current mode is set to Ad-Hoc, or
2293  * when there is already an association procedure going on. The given BSS
2294  * information is used to associate.
2295  */
2296 static int
2297 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
2298                          struct cfg80211_connect_params *sme)
2299 {
2300         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2301         struct mwifiex_adapter *adapter = priv->adapter;
2302         int ret;
2303
2304         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
2305                 mwifiex_dbg(adapter, ERROR,
2306                             "%s: reject infra assoc request in non-STA role\n",
2307                             dev->name);
2308                 return -EINVAL;
2309         }
2310
2311         if (priv->wdev.current_bss) {
2312                 mwifiex_dbg(adapter, ERROR,
2313                             "%s: already connected\n", dev->name);
2314                 return -EALREADY;
2315         }
2316
2317         if (priv->scan_block)
2318                 priv->scan_block = false;
2319
2320         if (adapter->surprise_removed || adapter->is_cmd_timedout) {
2321                 mwifiex_dbg(adapter, ERROR,
2322                             "%s: Ignore connection.\t"
2323                             "Card removed or FW in bad state\n",
2324                             dev->name);
2325                 return -EFAULT;
2326         }
2327
2328         mwifiex_dbg(adapter, INFO,
2329                     "info: Trying to associate to %.*s and bssid %pM\n",
2330                     (int)sme->ssid_len, (char *)sme->ssid, sme->bssid);
2331
2332         if (!mwifiex_stop_bg_scan(priv))
2333                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2334
2335         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
2336                                      priv->bss_mode, sme->channel, sme, 0);
2337         if (!ret) {
2338                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
2339                                         NULL, 0, WLAN_STATUS_SUCCESS,
2340                                         GFP_KERNEL);
2341                 mwifiex_dbg(priv->adapter, MSG,
2342                             "info: associated to bssid %pM successfully\n",
2343                             priv->cfg_bssid);
2344                 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
2345                     priv->adapter->auto_tdls &&
2346                     priv->bss_type == MWIFIEX_BSS_TYPE_STA)
2347                         mwifiex_setup_auto_tdls_timer(priv);
2348         } else {
2349                 mwifiex_dbg(priv->adapter, ERROR,
2350                             "info: association to bssid %pM failed\n",
2351                             priv->cfg_bssid);
2352                 eth_zero_addr(priv->cfg_bssid);
2353
2354                 if (ret > 0)
2355                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2356                                                 NULL, 0, NULL, 0, ret,
2357                                                 GFP_KERNEL);
2358                 else
2359                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
2360                                                 NULL, 0, NULL, 0,
2361                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
2362                                                 GFP_KERNEL);
2363         }
2364
2365         return 0;
2366 }
2367
2368 /*
2369  * This function sets following parameters for ibss network.
2370  *  -  channel
2371  *  -  start band
2372  *  -  11n flag
2373  *  -  secondary channel offset
2374  */
2375 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
2376                                    struct cfg80211_ibss_params *params)
2377 {
2378         struct mwifiex_adapter *adapter = priv->adapter;
2379         int index = 0, i;
2380         u8 config_bands = 0;
2381
2382         if (params->chandef.chan->band == NL80211_BAND_2GHZ) {
2383                 if (!params->basic_rates) {
2384                         config_bands = BAND_B | BAND_G;
2385                 } else {
2386                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
2387                                 /*
2388                                  * Rates below 6 Mbps in the table are CCK
2389                                  * rates; 802.11b and from 6 they are OFDM;
2390                                  * 802.11G
2391                                  */
2392                                 if (mwifiex_rates[i].bitrate == 60) {
2393                                         index = 1 << i;
2394                                         break;
2395                                 }
2396                         }
2397
2398                         if (params->basic_rates < index) {
2399                                 config_bands = BAND_B;
2400                         } else {
2401                                 config_bands = BAND_G;
2402                                 if (params->basic_rates % index)
2403                                         config_bands |= BAND_B;
2404                         }
2405                 }
2406
2407                 if (cfg80211_get_chandef_type(&params->chandef) !=
2408                                                 NL80211_CHAN_NO_HT)
2409                         config_bands |= BAND_G | BAND_GN;
2410         } else {
2411                 if (cfg80211_get_chandef_type(&params->chandef) ==
2412                                                 NL80211_CHAN_NO_HT)
2413                         config_bands = BAND_A;
2414                 else
2415                         config_bands = BAND_AN | BAND_A;
2416         }
2417
2418         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
2419                 adapter->config_bands = config_bands;
2420                 adapter->adhoc_start_band = config_bands;
2421
2422                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
2423                         adapter->adhoc_11n_enabled = true;
2424                 else
2425                         adapter->adhoc_11n_enabled = false;
2426         }
2427
2428         adapter->sec_chan_offset =
2429                 mwifiex_chan_type_to_sec_chan_offset(
2430                         cfg80211_get_chandef_type(&params->chandef));
2431         priv->adhoc_channel = ieee80211_frequency_to_channel(
2432                                 params->chandef.chan->center_freq);
2433
2434         mwifiex_dbg(adapter, INFO,
2435                     "info: set ibss band %d, chan %d, chan offset %d\n",
2436                     config_bands, priv->adhoc_channel,
2437                     adapter->sec_chan_offset);
2438
2439         return 0;
2440 }
2441
2442 /*
2443  * CFG802.11 operation handler to join an IBSS.
2444  *
2445  * This function does not work in any mode other than Ad-Hoc, or if
2446  * a join operation is already in progress.
2447  */
2448 static int
2449 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2450                            struct cfg80211_ibss_params *params)
2451 {
2452         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2453         int ret = 0;
2454
2455         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
2456                 mwifiex_dbg(priv->adapter, ERROR,
2457                             "request to join ibss received\t"
2458                             "when station is not in ibss mode\n");
2459                 goto done;
2460         }
2461
2462         mwifiex_dbg(priv->adapter, MSG,
2463                     "info: trying to join to %.*s and bssid %pM\n",
2464                     params->ssid_len, (char *)params->ssid, params->bssid);
2465
2466         mwifiex_set_ibss_params(priv, params);
2467
2468         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
2469                                      params->bssid, priv->bss_mode,
2470                                      params->chandef.chan, NULL,
2471                                      params->privacy);
2472 done:
2473         if (!ret) {
2474                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid,
2475                                      params->chandef.chan, GFP_KERNEL);
2476                 mwifiex_dbg(priv->adapter, MSG,
2477                             "info: joined/created adhoc network with bssid\t"
2478                             "%pM successfully\n", priv->cfg_bssid);
2479         } else {
2480                 mwifiex_dbg(priv->adapter, ERROR,
2481                             "info: failed creating/joining adhoc network\n");
2482         }
2483
2484         return ret;
2485 }
2486
2487 /*
2488  * CFG802.11 operation handler to leave an IBSS.
2489  *
2490  * This function does not work if a leave operation is
2491  * already in progress.
2492  */
2493 static int
2494 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2495 {
2496         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2497
2498         mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n",
2499                     priv->cfg_bssid);
2500         if (mwifiex_deauthenticate(priv, NULL))
2501                 return -EFAULT;
2502
2503         eth_zero_addr(priv->cfg_bssid);
2504
2505         return 0;
2506 }
2507
2508 /*
2509  * CFG802.11 operation handler for scan request.
2510  *
2511  * This function issues a scan request to the firmware based upon
2512  * the user specified scan configuration. On successful completion,
2513  * it also informs the results.
2514  */
2515 static int
2516 mwifiex_cfg80211_scan(struct wiphy *wiphy,
2517                       struct cfg80211_scan_request *request)
2518 {
2519         struct net_device *dev = request->wdev->netdev;
2520         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2521         int i, offset, ret;
2522         struct ieee80211_channel *chan;
2523         struct ieee_types_header *ie;
2524         struct mwifiex_user_scan_cfg *user_scan_cfg;
2525         u8 mac_addr[ETH_ALEN];
2526
2527         mwifiex_dbg(priv->adapter, CMD,
2528                     "info: received scan request on %s\n", dev->name);
2529
2530         /* Block scan request if scan operation or scan cleanup when interface
2531          * is disabled is in process
2532          */
2533         if (priv->scan_request || priv->scan_aborting) {
2534                 mwifiex_dbg(priv->adapter, WARN,
2535                             "cmd: Scan already in process..\n");
2536                 return -EBUSY;
2537         }
2538
2539         if (!priv->wdev.current_bss && priv->scan_block)
2540                 priv->scan_block = false;
2541
2542         if (!mwifiex_stop_bg_scan(priv))
2543                 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0);
2544
2545         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
2546         if (!user_scan_cfg)
2547                 return -ENOMEM;
2548
2549         priv->scan_request = request;
2550
2551         if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
2552                 get_random_mask_addr(mac_addr, request->mac_addr,
2553                                      request->mac_addr_mask);
2554                 ether_addr_copy(request->mac_addr, mac_addr);
2555                 ether_addr_copy(user_scan_cfg->random_mac, mac_addr);
2556         }
2557
2558         user_scan_cfg->num_ssids = request->n_ssids;
2559         user_scan_cfg->ssid_list = request->ssids;
2560
2561         if (request->ie && request->ie_len) {
2562                 offset = 0;
2563                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2564                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2565                                 continue;
2566                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
2567                         ie = (struct ieee_types_header *)(request->ie + offset);
2568                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2569                         offset += sizeof(*ie) + ie->len;
2570
2571                         if (offset >= request->ie_len)
2572                                 break;
2573                 }
2574         }
2575
2576         for (i = 0; i < min_t(u32, request->n_channels,
2577                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
2578                 chan = request->channels[i];
2579                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
2580                 user_scan_cfg->chan_list[i].radio_type = chan->band;
2581
2582                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2583                         user_scan_cfg->chan_list[i].scan_type =
2584                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2585                 else
2586                         user_scan_cfg->chan_list[i].scan_type =
2587                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2588
2589                 user_scan_cfg->chan_list[i].scan_time = 0;
2590         }
2591
2592         if (priv->adapter->scan_chan_gap_enabled &&
2593             mwifiex_is_any_intf_active(priv))
2594                 user_scan_cfg->scan_chan_gap =
2595                                               priv->adapter->scan_chan_gap_time;
2596
2597         ret = mwifiex_scan_networks(priv, user_scan_cfg);
2598         kfree(user_scan_cfg);
2599         if (ret) {
2600                 mwifiex_dbg(priv->adapter, ERROR,
2601                             "scan failed: %d\n", ret);
2602                 priv->scan_aborting = false;
2603                 priv->scan_request = NULL;
2604                 return ret;
2605         }
2606
2607         if (request->ie && request->ie_len) {
2608                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2609                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2610                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2611                                 memset(&priv->vs_ie[i].ie, 0,
2612                                        MWIFIEX_MAX_VSIE_LEN);
2613                         }
2614                 }
2615         }
2616         return 0;
2617 }
2618
2619 /* CFG802.11 operation handler for sched_scan_start.
2620  *
2621  * This function issues a bgscan config request to the firmware based upon
2622  * the user specified sched_scan configuration. On successful completion,
2623  * firmware will generate BGSCAN_REPORT event, driver should issue bgscan
2624  * query command to get sched_scan results from firmware.
2625  */
2626 static int
2627 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy,
2628                                   struct net_device *dev,
2629                                   struct cfg80211_sched_scan_request *request)
2630 {
2631         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2632         int i, offset;
2633         struct ieee80211_channel *chan;
2634         struct mwifiex_bg_scan_cfg *bgscan_cfg;
2635         struct ieee_types_header *ie;
2636
2637         if (!request || (!request->n_ssids && !request->n_match_sets)) {
2638                 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters",
2639                           __func__);
2640                 return -EINVAL;
2641         }
2642
2643         wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ",
2644                    request->n_ssids, request->n_match_sets);
2645         wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n",
2646                    request->n_channels, request->scan_plans->interval,
2647                    (int)request->ie_len);
2648
2649         bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL);
2650         if (!bgscan_cfg)
2651                 return -ENOMEM;
2652
2653         if (priv->scan_request || priv->scan_aborting)
2654                 bgscan_cfg->start_later = true;
2655
2656         bgscan_cfg->num_ssids = request->n_match_sets;
2657         bgscan_cfg->ssid_list = request->match_sets;
2658
2659         if (request->ie && request->ie_len) {
2660                 offset = 0;
2661                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2662                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
2663                                 continue;
2664                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN;
2665                         ie = (struct ieee_types_header *)(request->ie + offset);
2666                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
2667                         offset += sizeof(*ie) + ie->len;
2668
2669                         if (offset >= request->ie_len)
2670                                 break;
2671                 }
2672         }
2673
2674         for (i = 0; i < min_t(u32, request->n_channels,
2675                               MWIFIEX_BG_SCAN_CHAN_MAX); i++) {
2676                 chan = request->channels[i];
2677                 bgscan_cfg->chan_list[i].chan_number = chan->hw_value;
2678                 bgscan_cfg->chan_list[i].radio_type = chan->band;
2679
2680                 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids)
2681                         bgscan_cfg->chan_list[i].scan_type =
2682                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
2683                 else
2684                         bgscan_cfg->chan_list[i].scan_type =
2685                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
2686
2687                 bgscan_cfg->chan_list[i].scan_time = 0;
2688         }
2689
2690         bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels,
2691                                           MWIFIEX_BG_SCAN_CHAN_MAX);
2692
2693         /* Use at least 15 second for per scan cycle */
2694         bgscan_cfg->scan_interval = (request->scan_plans->interval >
2695                                      MWIFIEX_BGSCAN_INTERVAL) ?
2696                                 request->scan_plans->interval :
2697                                 MWIFIEX_BGSCAN_INTERVAL;
2698
2699         bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT;
2700         bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH |
2701                                 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE;
2702         bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA;
2703         bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET;
2704         bgscan_cfg->enable = true;
2705         if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) {
2706                 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH;
2707                 bgscan_cfg->rssi_threshold = request->min_rssi_thold;
2708         }
2709
2710         if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG,
2711                              HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) {
2712                 kfree(bgscan_cfg);
2713                 return -EFAULT;
2714         }
2715
2716         priv->sched_scanning = true;
2717
2718         kfree(bgscan_cfg);
2719         return 0;
2720 }
2721
2722 /* CFG802.11 operation handler for sched_scan_stop.
2723  *
2724  * This function issues a bgscan config command to disable
2725  * previous bgscan configuration in the firmware
2726  */
2727 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy,
2728                                             struct net_device *dev, u64 reqid)
2729 {
2730         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
2731
2732         wiphy_info(wiphy, "sched scan stop!");
2733         mwifiex_stop_bg_scan(priv);
2734
2735         return 0;
2736 }
2737
2738 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2739                                    struct mwifiex_private *priv)
2740 {
2741         struct mwifiex_adapter *adapter = priv->adapter;
2742
2743         vht_info->vht_supported = true;
2744
2745         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2746         /* Update MCS support for VHT */
2747         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2748                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2749         vht_info->vht_mcs.rx_highest = 0;
2750         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2751                                 adapter->hw_dot_11ac_mcs_support >> 16);
2752         vht_info->vht_mcs.tx_highest = 0;
2753 }
2754
2755 /*
2756  * This function sets up the CFG802.11 specific HT capability fields
2757  * with default values.
2758  *
2759  * The following default values are set -
2760  *      - HT Supported = True
2761  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2762  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2763  *      - HT Capabilities supported by firmware
2764  *      - MCS information, Rx mask = 0xff
2765  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2766  */
2767 static void
2768 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2769                       struct mwifiex_private *priv)
2770 {
2771         int rx_mcs_supp;
2772         struct ieee80211_mcs_info mcs_set;
2773         u8 *mcs = (u8 *)&mcs_set;
2774         struct mwifiex_adapter *adapter = priv->adapter;
2775
2776         ht_info->ht_supported = true;
2777         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2778         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2779
2780         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2781
2782         /* Fill HT capability information */
2783         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2784                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2785         else
2786                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2787
2788         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2789                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2790         else
2791                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2792
2793         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2794                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2795         else
2796                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2797
2798         if (adapter->user_dev_mcs_support == HT_STREAM_2X2)
2799                 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2800         else
2801                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2802
2803         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2804                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2805         else
2806                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2807
2808         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2809                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2810         else
2811                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2812
2813         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2814                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2815         else
2816                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2817
2818         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2819                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2820         else
2821                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2822
2823         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2824         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2825
2826         rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support);
2827         /* Set MCS for 1x1/2x2 */
2828         memset(mcs, 0xff, rx_mcs_supp);
2829         /* Clear all the other values */
2830         memset(&mcs[rx_mcs_supp], 0,
2831                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2832         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2833             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2834                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2835                 SETHT_MCS32(mcs_set.rx_mask);
2836
2837         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2838
2839         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2840 }
2841
2842 /*
2843  *  create a new virtual interface with the given name and name assign type
2844  */
2845 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2846                                               const char *name,
2847                                               unsigned char name_assign_type,
2848                                               enum nl80211_iftype type,
2849                                               struct vif_params *params)
2850 {
2851         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2852         struct mwifiex_private *priv;
2853         struct net_device *dev;
2854         void *mdev_priv;
2855         int ret;
2856
2857         if (!adapter)
2858                 return ERR_PTR(-EFAULT);
2859
2860         switch (type) {
2861         case NL80211_IFTYPE_UNSPECIFIED:
2862         case NL80211_IFTYPE_STATION:
2863         case NL80211_IFTYPE_ADHOC:
2864                 if (adapter->curr_iface_comb.sta_intf ==
2865                     adapter->iface_limit.sta_intf) {
2866                         mwifiex_dbg(adapter, ERROR,
2867                                     "cannot create multiple sta/adhoc ifaces\n");
2868                         return ERR_PTR(-EINVAL);
2869                 }
2870
2871                 priv = mwifiex_get_unused_priv_by_bss_type(
2872                                                 adapter, MWIFIEX_BSS_TYPE_STA);
2873                 if (!priv) {
2874                         mwifiex_dbg(adapter, ERROR,
2875                                     "could not get free private struct\n");
2876                         return ERR_PTR(-EFAULT);
2877                 }
2878
2879                 priv->wdev.wiphy = wiphy;
2880                 priv->wdev.iftype = NL80211_IFTYPE_STATION;
2881
2882                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2883                         priv->bss_mode = NL80211_IFTYPE_STATION;
2884                 else
2885                         priv->bss_mode = type;
2886
2887                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2888                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2889                 priv->bss_priority = 0;
2890                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2891
2892                 break;
2893         case NL80211_IFTYPE_AP:
2894                 if (adapter->curr_iface_comb.uap_intf ==
2895                     adapter->iface_limit.uap_intf) {
2896                         mwifiex_dbg(adapter, ERROR,
2897                                     "cannot create multiple AP ifaces\n");
2898                         return ERR_PTR(-EINVAL);
2899                 }
2900
2901                 priv = mwifiex_get_unused_priv_by_bss_type(
2902                                                 adapter, MWIFIEX_BSS_TYPE_UAP);
2903                 if (!priv) {
2904                         mwifiex_dbg(adapter, ERROR,
2905                                     "could not get free private struct\n");
2906                         return ERR_PTR(-EFAULT);
2907                 }
2908
2909                 priv->wdev.wiphy = wiphy;
2910                 priv->wdev.iftype = NL80211_IFTYPE_AP;
2911
2912                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2913                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2914                 priv->bss_priority = 0;
2915                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2916                 priv->bss_started = 0;
2917                 priv->bss_mode = type;
2918
2919                 break;
2920         case NL80211_IFTYPE_P2P_CLIENT:
2921                 if (adapter->curr_iface_comb.p2p_intf ==
2922                     adapter->iface_limit.p2p_intf) {
2923                         mwifiex_dbg(adapter, ERROR,
2924                                     "cannot create multiple P2P ifaces\n");
2925                         return ERR_PTR(-EINVAL);
2926                 }
2927
2928                 priv = mwifiex_get_unused_priv_by_bss_type(
2929                                                 adapter, MWIFIEX_BSS_TYPE_P2P);
2930                 if (!priv) {
2931                         mwifiex_dbg(adapter, ERROR,
2932                                     "could not get free private struct\n");
2933                         return ERR_PTR(-EFAULT);
2934                 }
2935
2936                 priv->wdev.wiphy = wiphy;
2937                 /* At start-up, wpa_supplicant tries to change the interface
2938                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2939                  */
2940                 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT;
2941                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2942
2943                 /* Setting bss_type to P2P tells firmware that this interface
2944                  * is receiving P2P peers found during find phase and doing
2945                  * action frame handshake.
2946                  */
2947                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2948
2949                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2950                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2951                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2952                 priv->bss_started = 0;
2953
2954                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2955                         memset(&priv->wdev, 0, sizeof(priv->wdev));
2956                         priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
2957                         return ERR_PTR(-EFAULT);
2958                 }
2959
2960                 break;
2961         default:
2962                 mwifiex_dbg(adapter, ERROR, "type not supported\n");
2963                 return ERR_PTR(-EINVAL);
2964         }
2965
2966         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2967                                name_assign_type, ether_setup,
2968                                IEEE80211_NUM_ACS, 1);
2969         if (!dev) {
2970                 mwifiex_dbg(adapter, ERROR,
2971                             "no memory available for netdevice\n");
2972                 ret = -ENOMEM;
2973                 goto err_alloc_netdev;
2974         }
2975
2976         mwifiex_init_priv_params(priv, dev);
2977
2978         priv->netdev = dev;
2979
2980         if (!adapter->mfg_mode) {
2981                 mwifiex_set_mac_address(priv, dev);
2982
2983                 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE,
2984                                        HostCmd_ACT_GEN_SET, 0, NULL, true);
2985                 if (ret)
2986                         goto err_set_bss_mode;
2987
2988                 ret = mwifiex_sta_init_cmd(priv, false, false);
2989                 if (ret)
2990                         goto err_sta_init;
2991         }
2992
2993         mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv);
2994         if (adapter->is_hw_11ac_capable)
2995                 mwifiex_setup_vht_caps(
2996                         &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv);
2997
2998         if (adapter->config_bands & BAND_A)
2999                 mwifiex_setup_ht_caps(
3000                         &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv);
3001
3002         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
3003                 mwifiex_setup_vht_caps(
3004                         &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv);
3005
3006         dev_net_set(dev, wiphy_net(wiphy));
3007         dev->ieee80211_ptr = &priv->wdev;
3008         dev->ieee80211_ptr->iftype = priv->bss_mode;
3009         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
3010
3011         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
3012         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
3013         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
3014         dev->ethtool_ops = &mwifiex_ethtool_ops;
3015
3016         mdev_priv = netdev_priv(dev);
3017         *((unsigned long *) mdev_priv) = (unsigned long) priv;
3018
3019         SET_NETDEV_DEV(dev, adapter->dev);
3020
3021         priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s",
3022                                                   WQ_HIGHPRI |
3023                                                   WQ_MEM_RECLAIM |
3024                                                   WQ_UNBOUND, 1, name);
3025         if (!priv->dfs_cac_workqueue) {
3026                 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n");
3027                 ret = -ENOMEM;
3028                 goto err_alloc_cac;
3029         }
3030
3031         INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue);
3032
3033         priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s",
3034                                                       WQ_HIGHPRI | WQ_UNBOUND |
3035