Pileus Git - ~andy/linux/blob - drivers/net/wireless/mwifiex/cfg80211.c

   1 /*
   2  * Marvell Wireless LAN device driver: CFG80211
   3  *
   4  * Copyright (C) 2011, Marvell International Ltd.
   5  *
   6  * This software file (the "File") is distributed by Marvell International
   7  * Ltd. under the terms of the GNU General Public License Version 2, June 1991
   8  * (the "License").  You may use, redistribute and/or modify this File in
   9  * accordance with the terms and conditions of the License, a copy of which
  10  * is available by writing to the Free Software Foundation, Inc.,
  11  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12  * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13  *
  14  * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16  * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
  17  * this warranty disclaimer.
  18  */
  19
  20 #include "cfg80211.h"
  21 #include "main.h"
  22
  23 static char *reg_alpha2;
  24 module_param(reg_alpha2, charp, 0);
  25
  26 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
  27         {
  28                 .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |
  29                                    BIT(NL80211_IFTYPE_P2P_GO) |
  30                                    BIT(NL80211_IFTYPE_P2P_CLIENT),
  31         },
  32         {
  33                 .max = 1, .types = BIT(NL80211_IFTYPE_AP),
  34         },
  35 };
  36
  37 static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = {
  38         .limits = mwifiex_ap_sta_limits,
  39         .num_different_channels = 1,
  40         .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits),
  41         .max_interfaces = MWIFIEX_MAX_BSS_NUM,
  42         .beacon_int_infra_match = true,
  43 };
  44
  45 static const struct ieee80211_regdomain mwifiex_world_regdom_custom = {
  46         .n_reg_rules = 7,
  47         .alpha2 =  "99",
  48         .reg_rules = {
  49                 /* Channel 1 - 11 */
  50                 REG_RULE(2412-10, 2462+10, 40, 3, 20, 0),
  51                 /* Channel 12 - 13 */
  52                 REG_RULE(2467-10, 2472+10, 20, 3, 20,
  53                          NL80211_RRF_NO_IR),
  54                 /* Channel 14 */
  55                 REG_RULE(2484-10, 2484+10, 20, 3, 20,
  56                          NL80211_RRF_NO_IR |
  57                          NL80211_RRF_NO_OFDM),
  58                 /* Channel 36 - 48 */
  59                 REG_RULE(5180-10, 5240+10, 40, 3, 20,
  60                          NL80211_RRF_NO_IR),
  61                 /* Channel 149 - 165 */
  62                 REG_RULE(5745-10, 5825+10, 40, 3, 20,
  63                          NL80211_RRF_NO_IR),
  64                 /* Channel 52 - 64 */
  65                 REG_RULE(5260-10, 5320+10, 40, 3, 30,
  66                          NL80211_RRF_NO_IR |
  67                          NL80211_RRF_DFS),
  68                 /* Channel 100 - 140 */
  69                 REG_RULE(5500-10, 5700+10, 40, 3, 30,
  70                          NL80211_RRF_NO_IR |
  71                          NL80211_RRF_DFS),
  72         }
  73 };
  74
  75 /*
  76  * This function maps the nl802.11 channel type into driver channel type.
  77  *
  78  * The mapping is as follows -
  79  *      NL80211_CHAN_NO_HT     -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  80  *      NL80211_CHAN_HT20      -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  81  *      NL80211_CHAN_HT40PLUS  -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE
  82  *      NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW
  83  *      Others                 -> IEEE80211_HT_PARAM_CHA_SEC_NONE
  84  */
  85 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type)
  86 {
  87         switch (chan_type) {
  88         case NL80211_CHAN_NO_HT:
  89         case NL80211_CHAN_HT20:
  90                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  91         case NL80211_CHAN_HT40PLUS:
  92                 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
  93         case NL80211_CHAN_HT40MINUS:
  94                 return IEEE80211_HT_PARAM_CHA_SEC_BELOW;
  95         default:
  96                 return IEEE80211_HT_PARAM_CHA_SEC_NONE;
  97         }
  98 }
  99
 100 /*
 101  * This function checks whether WEP is set.
 102  */
 103 static int
 104 mwifiex_is_alg_wep(u32 cipher)
 105 {
 106         switch (cipher) {
 107         case WLAN_CIPHER_SUITE_WEP40:
 108         case WLAN_CIPHER_SUITE_WEP104:
 109                 return 1;
 110         default:
 111                 break;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /*
 118  * This function retrieves the private structure from kernel wiphy structure.
 119  */
 120 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy)
 121 {
 122         return (void *) (*(unsigned long *) wiphy_priv(wiphy));
 123 }
 124
 125 /*
 126  * CFG802.11 operation handler to delete a network key.
 127  */
 128 static int
 129 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev,
 130                          u8 key_index, bool pairwise, const u8 *mac_addr)
 131 {
 132         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 133         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 134         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 135
 136         if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) {
 137                 wiphy_err(wiphy, "deleting the crypto keys\n");
 138                 return -EFAULT;
 139         }
 140
 141         wiphy_dbg(wiphy, "info: crypto keys deleted\n");
 142         return 0;
 143 }
 144
 145 /*
 146  * This function forms an skb for management frame.
 147  */
 148 static int
 149 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len)
 150 {
 151         u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
 152         u16 pkt_len;
 153         u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT;
 154         struct timeval tv;
 155
 156         pkt_len = len + ETH_ALEN;
 157
 158         skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN +
 159                     MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
 160         memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len));
 161
 162         memcpy(skb_push(skb, sizeof(tx_control)),
 163                &tx_control, sizeof(tx_control));
 164
 165         memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type));
 166
 167         /* Add packet data and address4 */
 168         memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf,
 169                sizeof(struct ieee80211_hdr_3addr));
 170         memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN);
 171         memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)),
 172                buf + sizeof(struct ieee80211_hdr_3addr),
 173                len - sizeof(struct ieee80211_hdr_3addr));
 174
 175         skb->priority = LOW_PRIO_TID;
 176         do_gettimeofday(&tv);
 177         skb->tstamp = timeval_to_ktime(tv);
 178
 179         return 0;
 180 }
 181
 182 /*
 183  * CFG802.11 operation handler to transmit a management frame.
 184  */
 185 static int
 186 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 187                          struct cfg80211_mgmt_tx_params *params, u64 *cookie)
 188 {
 189         const u8 *buf = params->buf;
 190         size_t len = params->len;
 191         struct sk_buff *skb;
 192         u16 pkt_len;
 193         const struct ieee80211_mgmt *mgmt;
 194         struct mwifiex_txinfo *tx_info;
 195         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 196
 197         if (!buf || !len) {
 198                 wiphy_err(wiphy, "invalid buffer and length\n");
 199                 return -EFAULT;
 200         }
 201
 202         mgmt = (const struct ieee80211_mgmt *)buf;
 203         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA &&
 204             ieee80211_is_probe_resp(mgmt->frame_control)) {
 205                 /* Since we support offload probe resp, we need to skip probe
 206                  * resp in AP or GO mode */
 207                 wiphy_dbg(wiphy,
 208                           "info: skip to send probe resp in AP or GO mode\n");
 209                 return 0;
 210         }
 211
 212         pkt_len = len + ETH_ALEN;
 213         skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN +
 214                             MWIFIEX_MGMT_FRAME_HEADER_SIZE +
 215                             pkt_len + sizeof(pkt_len));
 216
 217         if (!skb) {
 218                 wiphy_err(wiphy, "allocate skb failed for management frame\n");
 219                 return -ENOMEM;
 220         }
 221
 222         tx_info = MWIFIEX_SKB_TXCB(skb);
 223         tx_info->bss_num = priv->bss_num;
 224         tx_info->bss_type = priv->bss_type;
 225         tx_info->pkt_len = pkt_len;
 226
 227         mwifiex_form_mgmt_frame(skb, buf, len);
 228         mwifiex_queue_tx_pkt(priv, skb);
 229
 230         *cookie = prandom_u32() | 1;
 231         cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 232
 233         wiphy_dbg(wiphy, "info: management frame transmitted\n");
 234         return 0;
 235 }
 236
 237 /*
 238  * CFG802.11 operation handler to register a mgmt frame.
 239  */
 240 static void
 241 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy,
 242                                      struct wireless_dev *wdev,
 243                                      u16 frame_type, bool reg)
 244 {
 245         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 246         u32 mask;
 247
 248         if (reg)
 249                 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4);
 250         else
 251                 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4);
 252
 253         if (mask != priv->mgmt_frame_mask) {
 254                 priv->mgmt_frame_mask = mask;
 255                 mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG,
 256                                        HostCmd_ACT_GEN_SET, 0,
 257                                        &priv->mgmt_frame_mask);
 258                 wiphy_dbg(wiphy, "info: mgmt frame registered\n");
 259         }
 260 }
 261
 262 /*
 263  * CFG802.11 operation handler to remain on channel.
 264  */
 265 static int
 266 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 267                                    struct wireless_dev *wdev,
 268                                    struct ieee80211_channel *chan,
 269                                    unsigned int duration, u64 *cookie)
 270 {
 271         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 272         int ret;
 273
 274         if (!chan || !cookie) {
 275                 wiphy_err(wiphy, "Invalid parameter for ROC\n");
 276                 return -EINVAL;
 277         }
 278
 279         if (priv->roc_cfg.cookie) {
 280                 wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n",
 281                           priv->roc_cfg.cookie);
 282                 return -EBUSY;
 283         }
 284
 285         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan,
 286                                          duration);
 287
 288         if (!ret) {
 289                 *cookie = prandom_u32() | 1;
 290                 priv->roc_cfg.cookie = *cookie;
 291                 priv->roc_cfg.chan = *chan;
 292
 293                 cfg80211_ready_on_channel(wdev, *cookie, chan,
 294                                           duration, GFP_ATOMIC);
 295
 296                 wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie);
 297         }
 298
 299         return ret;
 300 }
 301
 302 /*
 303  * CFG802.11 operation handler to cancel remain on channel.
 304  */
 305 static int
 306 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy,
 307                                           struct wireless_dev *wdev, u64 cookie)
 308 {
 309         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
 310         int ret;
 311
 312         if (cookie != priv->roc_cfg.cookie)
 313                 return -ENOENT;
 314
 315         ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE,
 316                                          &priv->roc_cfg.chan, 0);
 317
 318         if (!ret) {
 319                 cfg80211_remain_on_channel_expired(wdev, cookie,
 320                                                    &priv->roc_cfg.chan,
 321                                                    GFP_ATOMIC);
 322
 323                 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg));
 324
 325                 wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie);
 326         }
 327
 328         return ret;
 329 }
 330
 331 /*
 332  * CFG802.11 operation handler to set Tx power.
 333  */
 334 static int
 335 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy,
 336                               struct wireless_dev *wdev,
 337                               enum nl80211_tx_power_setting type,
 338                               int mbm)
 339 {
 340         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 341         struct mwifiex_private *priv;
 342         struct mwifiex_power_cfg power_cfg;
 343         int dbm = MBM_TO_DBM(mbm);
 344
 345         if (type == NL80211_TX_POWER_FIXED) {
 346                 power_cfg.is_power_auto = 0;
 347                 power_cfg.power_level = dbm;
 348         } else {
 349                 power_cfg.is_power_auto = 1;
 350         }
 351
 352         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 353
 354         return mwifiex_set_tx_power(priv, &power_cfg);
 355 }
 356
 357 /*
 358  * CFG802.11 operation handler to set Power Save option.
 359  *
 360  * The timeout value, if provided, is currently ignored.
 361  */
 362 static int
 363 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
 364                                 struct net_device *dev,
 365                                 bool enabled, int timeout)
 366 {
 367         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 368         u32 ps_mode;
 369
 370         if (timeout)
 371                 wiphy_dbg(wiphy,
 372                           "info: ignore timeout value for IEEE Power Save\n");
 373
 374         ps_mode = enabled;
 375
 376         return mwifiex_drv_set_power(priv, &ps_mode);
 377 }
 378
 379 /*
 380  * CFG802.11 operation handler to set the default network key.
 381  */
 382 static int
 383 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev,
 384                                  u8 key_index, bool unicast,
 385                                  bool multicast)
 386 {
 387         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 388
 389         /* Return if WEP key not configured */
 390         if (!priv->sec_info.wep_enabled)
 391                 return 0;
 392
 393         if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) {
 394                 priv->wep_key_curr_index = key_index;
 395         } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index,
 396                                       NULL, 0)) {
 397                 wiphy_err(wiphy, "set default Tx key index\n");
 398                 return -EFAULT;
 399         }
 400
 401         return 0;
 402 }
 403
 404 /*
 405  * CFG802.11 operation handler to add a network key.
 406  */
 407 static int
 408 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev,
 409                          u8 key_index, bool pairwise, const u8 *mac_addr,
 410                          struct key_params *params)
 411 {
 412         struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev);
 413         struct mwifiex_wep_key *wep_key;
 414         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 415         const u8 *peer_mac = pairwise ? mac_addr : bc_mac;
 416
 417         if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP &&
 418             (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 419              params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
 420                 if (params->key && params->key_len) {
 421                         wep_key = &priv->wep_key[key_index];
 422                         memset(wep_key, 0, sizeof(struct mwifiex_wep_key));
 423                         memcpy(wep_key->key_material, params->key,
 424                                params->key_len);
 425                         wep_key->key_index = key_index;
 426                         wep_key->key_length = params->key_len;
 427                         priv->sec_info.wep_enabled = 1;
 428                 }
 429                 return 0;
 430         }
 431
 432         if (mwifiex_set_encode(priv, params, params->key, params->key_len,
 433                                key_index, peer_mac, 0)) {
 434                 wiphy_err(wiphy, "crypto keys added\n");
 435                 return -EFAULT;
 436         }
 437
 438         return 0;
 439 }
 440
 441 /*
 442  * This function sends domain information to the firmware.
 443  *
 444  * The following information are passed to the firmware -
 445  *      - Country codes
 446  *      - Sub bands (first channel, number of channels, maximum Tx power)
 447  */
 448 static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy)
 449 {
 450         u8 no_of_triplet = 0;
 451         struct ieee80211_country_ie_triplet *t;
 452         u8 no_of_parsed_chan = 0;
 453         u8 first_chan = 0, next_chan = 0, max_pwr = 0;
 454         u8 i, flag = 0;
 455         enum ieee80211_band band;
 456         struct ieee80211_supported_band *sband;
 457         struct ieee80211_channel *ch;
 458         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 459         struct mwifiex_private *priv;
 460         struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg;
 461
 462         /* Set country code */
 463         domain_info->country_code[0] = adapter->country_code[0];
 464         domain_info->country_code[1] = adapter->country_code[1];
 465         domain_info->country_code[2] = ' ';
 466
 467         band = mwifiex_band_to_radio_type(adapter->config_bands);
 468         if (!wiphy->bands[band]) {
 469                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 470                 return -1;
 471         }
 472
 473         sband = wiphy->bands[band];
 474
 475         for (i = 0; i < sband->n_channels ; i++) {
 476                 ch = &sband->channels[i];
 477                 if (ch->flags & IEEE80211_CHAN_DISABLED)
 478                         continue;
 479
 480                 if (!flag) {
 481                         flag = 1;
 482                         first_chan = (u32) ch->hw_value;
 483                         next_chan = first_chan;
 484                         max_pwr = ch->max_power;
 485                         no_of_parsed_chan = 1;
 486                         continue;
 487                 }
 488
 489                 if (ch->hw_value == next_chan + 1 &&
 490                     ch->max_power == max_pwr) {
 491                         next_chan++;
 492                         no_of_parsed_chan++;
 493                 } else {
 494                         t = &domain_info->triplet[no_of_triplet];
 495                         t->chans.first_channel = first_chan;
 496                         t->chans.num_channels = no_of_parsed_chan;
 497                         t->chans.max_power = max_pwr;
 498                         no_of_triplet++;
 499                         first_chan = (u32) ch->hw_value;
 500                         next_chan = first_chan;
 501                         max_pwr = ch->max_power;
 502                         no_of_parsed_chan = 1;
 503                 }
 504         }
 505
 506         if (flag) {
 507                 t = &domain_info->triplet[no_of_triplet];
 508                 t->chans.first_channel = first_chan;
 509                 t->chans.num_channels = no_of_parsed_chan;
 510                 t->chans.max_power = max_pwr;
 511                 no_of_triplet++;
 512         }
 513
 514         domain_info->no_of_triplet = no_of_triplet;
 515
 516         priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
 517
 518         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO,
 519                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
 520                 wiphy_err(wiphy, "11D: setting domain info in FW\n");
 521                 return -1;
 522         }
 523
 524         return 0;
 525 }
 526
 527 /*
 528  * CFG802.11 regulatory domain callback function.
 529  *
 530  * This function is called when the regulatory domain is changed due to the
 531  * following reasons -
 532  *      - Set by driver
 533  *      - Set by system core
 534  *      - Set by user
 535  *      - Set bt Country IE
 536  */
 537 static void mwifiex_reg_notifier(struct wiphy *wiphy,
 538                                  struct regulatory_request *request)
 539 {
 540         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 541         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
 542                                                         MWIFIEX_BSS_ROLE_ANY);
 543
 544         wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n",
 545                   request->alpha2[0], request->alpha2[1]);
 546
 547         switch (request->initiator) {
 548         case NL80211_REGDOM_SET_BY_DRIVER:
 549         case NL80211_REGDOM_SET_BY_CORE:
 550         case NL80211_REGDOM_SET_BY_USER:
 551         case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 552                 break;
 553         default:
 554                 wiphy_err(wiphy, "unknown regdom initiator: %d\n",
 555                           request->initiator);
 556                 return;
 557         }
 558
 559         /* Don't send world or same regdom info to firmware */
 560         if (strncmp(request->alpha2, "00", 2) &&
 561             strncmp(request->alpha2, adapter->country_code,
 562                     sizeof(request->alpha2))) {
 563                 memcpy(adapter->country_code, request->alpha2,
 564                        sizeof(request->alpha2));
 565                 mwifiex_send_domain_info_cmd_fw(wiphy);
 566                 mwifiex_dnld_txpwr_table(priv);
 567         }
 568 }
 569
 570 /*
 571  * This function sets the fragmentation threshold.
 572  *
 573  * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE
 574  * and MWIFIEX_FRAG_MAX_VALUE.
 575  */
 576 static int
 577 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr)
 578 {
 579         if (frag_thr < MWIFIEX_FRAG_MIN_VALUE ||
 580             frag_thr > MWIFIEX_FRAG_MAX_VALUE)
 581                 frag_thr = MWIFIEX_FRAG_MAX_VALUE;
 582
 583         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 584                                      HostCmd_ACT_GEN_SET, FRAG_THRESH_I,
 585                                      &frag_thr);
 586 }
 587
 588 /*
 589  * This function sets the RTS threshold.
 590
 591  * The rts value must lie between MWIFIEX_RTS_MIN_VALUE
 592  * and MWIFIEX_RTS_MAX_VALUE.
 593  */
 594 static int
 595 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr)
 596 {
 597         if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE)
 598                 rts_thr = MWIFIEX_RTS_MAX_VALUE;
 599
 600         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 601                                     HostCmd_ACT_GEN_SET, RTS_THRESH_I,
 602                                     &rts_thr);
 603 }
 604
 605 /*
 606  * CFG802.11 operation handler to set wiphy parameters.
 607  *
 608  * This function can be used to set the RTS threshold and the
 609  * Fragmentation threshold of the driver.
 610  */
 611 static int
 612 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 613 {
 614         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
 615         struct mwifiex_private *priv;
 616         struct mwifiex_uap_bss_param *bss_cfg;
 617         int ret, bss_started, i;
 618
 619         for (i = 0; i < adapter->priv_num; i++) {
 620                 priv = adapter->priv[i];
 621
 622                 switch (priv->bss_role) {
 623                 case MWIFIEX_BSS_ROLE_UAP:
 624                         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param),
 625                                           GFP_KERNEL);
 626                         if (!bss_cfg)
 627                                 return -ENOMEM;
 628
 629                         mwifiex_set_sys_config_invalid_data(bss_cfg);
 630
 631                         if (changed & WIPHY_PARAM_RTS_THRESHOLD)
 632                                 bss_cfg->rts_threshold = wiphy->rts_threshold;
 633                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD)
 634                                 bss_cfg->frag_threshold = wiphy->frag_threshold;
 635                         if (changed & WIPHY_PARAM_RETRY_LONG)
 636                                 bss_cfg->retry_limit = wiphy->retry_long;
 637
 638                         bss_started = priv->bss_started;
 639
 640                         ret = mwifiex_send_cmd_sync(priv,
 641                                                     HostCmd_CMD_UAP_BSS_STOP,
 642                                                     HostCmd_ACT_GEN_SET, 0,
 643                                                     NULL);
 644                         if (ret) {
 645                                 wiphy_err(wiphy, "Failed to stop the BSS\n");
 646                                 kfree(bss_cfg);
 647                                 return ret;
 648                         }
 649
 650                         ret = mwifiex_send_cmd_async(priv,
 651                                                      HostCmd_CMD_UAP_SYS_CONFIG,
 652                                                      HostCmd_ACT_GEN_SET,
 653                                                      UAP_BSS_PARAMS_I, bss_cfg);
 654
 655                         kfree(bss_cfg);
 656
 657                         if (ret) {
 658                                 wiphy_err(wiphy, "Failed to set bss config\n");
 659                                 return ret;
 660                         }
 661
 662                         if (!bss_started)
 663                                 break;
 664
 665                         ret = mwifiex_send_cmd_async(priv,
 666                                                      HostCmd_CMD_UAP_BSS_START,
 667                                                      HostCmd_ACT_GEN_SET, 0,
 668                                                      NULL);
 669                         if (ret) {
 670                                 wiphy_err(wiphy, "Failed to start BSS\n");
 671                                 return ret;
 672                         }
 673
 674                         break;
 675                 case MWIFIEX_BSS_ROLE_STA:
 676                         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
 677                                 ret = mwifiex_set_rts(priv,
 678                                                       wiphy->rts_threshold);
 679                                 if (ret)
 680                                         return ret;
 681                         }
 682                         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
 683                                 ret = mwifiex_set_frag(priv,
 684                                                        wiphy->frag_threshold);
 685                                 if (ret)
 686                                         return ret;
 687                         }
 688                         break;
 689                 }
 690         }
 691
 692         return 0;
 693 }
 694
 695 static int
 696 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv)
 697 {
 698         u16 mode = P2P_MODE_DISABLE;
 699
 700         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA)
 701                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA);
 702
 703         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 704                                   HostCmd_ACT_GEN_SET, 0, &mode))
 705                 return -1;
 706
 707         return 0;
 708 }
 709
 710 /*
 711  * This function initializes the functionalities for P2P client.
 712  * The P2P client initialization sequence is:
 713  * disable -> device -> client
 714  */
 715 static int
 716 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv)
 717 {
 718         u16 mode;
 719
 720         if (mwifiex_cfg80211_deinit_p2p(priv))
 721                 return -1;
 722
 723         mode = P2P_MODE_DEVICE;
 724         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 725                                   HostCmd_ACT_GEN_SET, 0, &mode))
 726                 return -1;
 727
 728         mode = P2P_MODE_CLIENT;
 729         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 730                                   HostCmd_ACT_GEN_SET, 0, &mode))
 731                 return -1;
 732
 733         return 0;
 734 }
 735
 736 /*
 737  * This function initializes the functionalities for P2P GO.
 738  * The P2P GO initialization sequence is:
 739  * disable -> device -> GO
 740  */
 741 static int
 742 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv)
 743 {
 744         u16 mode;
 745
 746         if (mwifiex_cfg80211_deinit_p2p(priv))
 747                 return -1;
 748
 749         mode = P2P_MODE_DEVICE;
 750         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 751                                   HostCmd_ACT_GEN_SET, 0, &mode))
 752                 return -1;
 753
 754         mode = P2P_MODE_GO;
 755         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG,
 756                                   HostCmd_ACT_GEN_SET, 0, &mode))
 757                 return -1;
 758
 759         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
 760                 mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP);
 761
 762         return 0;
 763 }
 764
 765 /*
 766  * CFG802.11 operation handler to change interface type.
 767  */
 768 static int
 769 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy,
 770                                      struct net_device *dev,
 771                                      enum nl80211_iftype type, u32 *flags,
 772                                      struct vif_params *params)
 773 {
 774         int ret;
 775         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
 776
 777         switch (dev->ieee80211_ptr->iftype) {
 778         case NL80211_IFTYPE_ADHOC:
 779                 switch (type) {
 780                 case NL80211_IFTYPE_STATION:
 781                         break;
 782                 case NL80211_IFTYPE_UNSPECIFIED:
 783                         wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name);
 784                 case NL80211_IFTYPE_ADHOC:      /* This shouldn't happen */
 785                         return 0;
 786                 case NL80211_IFTYPE_AP:
 787                 default:
 788                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 789                                   dev->name, type);
 790                         return -EOPNOTSUPP;
 791                 }
 792                 break;
 793         case NL80211_IFTYPE_STATION:
 794                 switch (type) {
 795                 case NL80211_IFTYPE_ADHOC:
 796                         break;
 797                 case NL80211_IFTYPE_P2P_CLIENT:
 798                         if (mwifiex_cfg80211_init_p2p_client(priv))
 799                                 return -EFAULT;
 800                         dev->ieee80211_ptr->iftype = type;
 801                         return 0;
 802                 case NL80211_IFTYPE_P2P_GO:
 803                         if (mwifiex_cfg80211_init_p2p_go(priv))
 804                                 return -EFAULT;
 805                         dev->ieee80211_ptr->iftype = type;
 806                         return 0;
 807                 case NL80211_IFTYPE_UNSPECIFIED:
 808                         wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name);
 809                 case NL80211_IFTYPE_STATION:    /* This shouldn't happen */
 810                         return 0;
 811                 case NL80211_IFTYPE_AP:
 812                 default:
 813                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 814                                   dev->name, type);
 815                         return -EOPNOTSUPP;
 816                 }
 817                 break;
 818         case NL80211_IFTYPE_AP:
 819                 switch (type) {
 820                 case NL80211_IFTYPE_UNSPECIFIED:
 821                         wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name);
 822                 case NL80211_IFTYPE_AP:         /* This shouldn't happen */
 823                         return 0;
 824                 case NL80211_IFTYPE_ADHOC:
 825                 case NL80211_IFTYPE_STATION:
 826                 default:
 827                         wiphy_err(wiphy, "%s: changing to %d not supported\n",
 828                                   dev->name, type);
 829                         return -EOPNOTSUPP;
 830                 }
 831                 break;
 832         case NL80211_IFTYPE_P2P_CLIENT:
 833         case NL80211_IFTYPE_P2P_GO:
 834                 switch (type) {
 835                 case NL80211_IFTYPE_STATION:
 836                         if (mwifiex_cfg80211_deinit_p2p(priv))
 837                                 return -EFAULT;
 838                         dev->ieee80211_ptr->iftype = type;
 839                         return 0;
 840                 default:
 841                         return -EOPNOTSUPP;
 842                 }
 843                 break;
 844         default:
 845                 wiphy_err(wiphy, "%s: unknown iftype: %d\n",
 846                           dev->name, dev->ieee80211_ptr->iftype);
 847                 return -EOPNOTSUPP;
 848         }
 849
 850         dev->ieee80211_ptr->iftype = type;
 851         priv->bss_mode = type;
 852         mwifiex_deauthenticate(priv, NULL);
 853
 854         priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM;
 855
 856         ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE,
 857                                     HostCmd_ACT_GEN_SET, 0, NULL);
 858
 859         return ret;
 860 }
 861
 862 static void
 863 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo,
 864                      struct rate_info *rate)
 865 {
 866         struct mwifiex_adapter *adapter = priv->adapter;
 867
 868         if (adapter->is_hw_11ac_capable) {
 869                 /* bit[1-0]: 00=LG 01=HT 10=VHT */
 870                 if (tx_htinfo & BIT(0)) {
 871                         /* HT */
 872                         rate->mcs = priv->tx_rate;
 873                         rate->flags |= RATE_INFO_FLAGS_MCS;
 874                 }
 875                 if (tx_htinfo & BIT(1)) {
 876                         /* VHT */
 877                         rate->mcs = priv->tx_rate & 0x0F;
 878                         rate->flags |= RATE_INFO_FLAGS_VHT_MCS;
 879                 }
 880
 881                 if (tx_htinfo & (BIT(1) | BIT(0))) {
 882                         /* HT or VHT */
 883                         switch (tx_htinfo & (BIT(3) | BIT(2))) {
 884                         case 0:
 885                                 /* This will be 20MHz */
 886                                 break;
 887                         case (BIT(2)):
 888                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 889                                 break;
 890                         case (BIT(3)):
 891                                 rate->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 892                                 break;
 893                         case (BIT(3) | BIT(2)):
 894                                 rate->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 895                                 break;
 896                         }
 897
 898                         if (tx_htinfo & BIT(4))
 899                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 900
 901                         if ((priv->tx_rate >> 4) == 1)
 902                                 rate->nss = 2;
 903                         else
 904                                 rate->nss = 1;
 905                 }
 906         } else {
 907                 /*
 908                  * Bit 0 in tx_htinfo indicates that current Tx rate
 909                  * is 11n rate. Valid MCS index values for us are 0 to 15.
 910                  */
 911                 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) {
 912                         rate->mcs = priv->tx_rate;
 913                         rate->flags |= RATE_INFO_FLAGS_MCS;
 914                         if (tx_htinfo & BIT(1))
 915                                 rate->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 916                         if (tx_htinfo & BIT(2))
 917                                 rate->flags |= RATE_INFO_FLAGS_SHORT_GI;
 918                 }
 919         }
 920 }
 921
 922 /*
 923  * This function dumps the station information on a buffer.
 924  *
 925  * The following information are shown -
 926  *      - Total bytes transmitted
 927  *      - Total bytes received
 928  *      - Total packets transmitted
 929  *      - Total packets received
 930  *      - Signal quality level
 931  *      - Transmission rate
 932  */
 933 static int
 934 mwifiex_dump_station_info(struct mwifiex_private *priv,
 935                           struct station_info *sinfo)
 936 {
 937         u32 rate;
 938
 939         sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES |
 940                         STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS |
 941                         STATION_INFO_TX_BITRATE |
 942                         STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 943
 944         /* Get signal information from the firmware */
 945         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO,
 946                                   HostCmd_ACT_GEN_GET, 0, NULL)) {
 947                 dev_err(priv->adapter->dev, "failed to get signal information\n");
 948                 return -EFAULT;
 949         }
 950
 951         if (mwifiex_drv_get_data_rate(priv, &rate)) {
 952                 dev_err(priv->adapter->dev, "getting data rate\n");
 953                 return -EFAULT;
 954         }
 955
 956         /* Get DTIM period information from firmware */
 957         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
 958                               HostCmd_ACT_GEN_GET, DTIM_PERIOD_I,
 959                               &priv->dtim_period);
 960
 961         mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate);
 962
 963         sinfo->signal_avg = priv->bcn_rssi_avg;
 964         sinfo->rx_bytes = priv->stats.rx_bytes;
 965         sinfo->tx_bytes = priv->stats.tx_bytes;
 966         sinfo->rx_packets = priv->stats.rx_packets;
 967         sinfo->tx_packets = priv->stats.tx_packets;
 968         sinfo->signal = priv->bcn_rssi_avg;
 969         /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */
 970         sinfo->txrate.legacy = rate * 5;
 971
 972         if (priv->bss_mode == NL80211_IFTYPE_STATION) {
 973                 sinfo->filled |= STATION_INFO_BSS_PARAM;
 974                 sinfo->bss_param.flags = 0;
 975                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 976                                                 WLAN_CAPABILITY_SHORT_PREAMBLE)
 977                         sinfo->bss_param.flags |=
 978                                         BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 979                 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap &
 980                                                 WLAN_CAPABILITY_SHORT_SLOT_TIME)
 981                         sinfo->bss_param.flags |=
 982                                         BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 983                 sinfo->bss_param.dtim_period = priv->dtim_period;
 984                 sinfo->bss_param.beacon_interval =
 985                         priv->curr_bss_params.bss_descriptor.beacon_period;
 986         }
 987
 988         return 0;
 989 }
 990
 991 /*
 992  * CFG802.11 operation handler to get station information.
 993  *
 994  * This function only works in connected mode, and dumps the
 995  * requested station information, if available.
 996  */
 997 static int
 998 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 999                              u8 *mac, struct station_info *sinfo)
1000 {
1001         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1002
1003         if (!priv->media_connected)
1004                 return -ENOENT;
1005         if (memcmp(mac, priv->cfg_bssid, ETH_ALEN))
1006                 return -ENOENT;
1007
1008         return mwifiex_dump_station_info(priv, sinfo);
1009 }
1010
1011 /*
1012  * CFG802.11 operation handler to dump station information.
1013  */
1014 static int
1015 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
1016                               int idx, u8 *mac, struct station_info *sinfo)
1017 {
1018         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1019
1020         if (!priv->media_connected || idx)
1021                 return -ENOENT;
1022
1023         memcpy(mac, priv->cfg_bssid, ETH_ALEN);
1024
1025         return mwifiex_dump_station_info(priv, sinfo);
1026 }
1027
1028 /* Supported rates to be advertised to the cfg80211 */
1029 static struct ieee80211_rate mwifiex_rates[] = {
1030         {.bitrate = 10, .hw_value = 2, },
1031         {.bitrate = 20, .hw_value = 4, },
1032         {.bitrate = 55, .hw_value = 11, },
1033         {.bitrate = 110, .hw_value = 22, },
1034         {.bitrate = 60, .hw_value = 12, },
1035         {.bitrate = 90, .hw_value = 18, },
1036         {.bitrate = 120, .hw_value = 24, },
1037         {.bitrate = 180, .hw_value = 36, },
1038         {.bitrate = 240, .hw_value = 48, },
1039         {.bitrate = 360, .hw_value = 72, },
1040         {.bitrate = 480, .hw_value = 96, },
1041         {.bitrate = 540, .hw_value = 108, },
1042 };
1043
1044 /* Channel definitions to be advertised to cfg80211 */
1045 static struct ieee80211_channel mwifiex_channels_2ghz[] = {
1046         {.center_freq = 2412, .hw_value = 1, },
1047         {.center_freq = 2417, .hw_value = 2, },
1048         {.center_freq = 2422, .hw_value = 3, },
1049         {.center_freq = 2427, .hw_value = 4, },
1050         {.center_freq = 2432, .hw_value = 5, },
1051         {.center_freq = 2437, .hw_value = 6, },
1052         {.center_freq = 2442, .hw_value = 7, },
1053         {.center_freq = 2447, .hw_value = 8, },
1054         {.center_freq = 2452, .hw_value = 9, },
1055         {.center_freq = 2457, .hw_value = 10, },
1056         {.center_freq = 2462, .hw_value = 11, },
1057         {.center_freq = 2467, .hw_value = 12, },
1058         {.center_freq = 2472, .hw_value = 13, },
1059         {.center_freq = 2484, .hw_value = 14, },
1060 };
1061
1062 static struct ieee80211_supported_band mwifiex_band_2ghz = {
1063         .channels = mwifiex_channels_2ghz,
1064         .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz),
1065         .bitrates = mwifiex_rates,
1066         .n_bitrates = ARRAY_SIZE(mwifiex_rates),
1067 };
1068
1069 static struct ieee80211_channel mwifiex_channels_5ghz[] = {
1070         {.center_freq = 5040, .hw_value = 8, },
1071         {.center_freq = 5060, .hw_value = 12, },
1072         {.center_freq = 5080, .hw_value = 16, },
1073         {.center_freq = 5170, .hw_value = 34, },
1074         {.center_freq = 5190, .hw_value = 38, },
1075         {.center_freq = 5210, .hw_value = 42, },
1076         {.center_freq = 5230, .hw_value = 46, },
1077         {.center_freq = 5180, .hw_value = 36, },
1078         {.center_freq = 5200, .hw_value = 40, },
1079         {.center_freq = 5220, .hw_value = 44, },
1080         {.center_freq = 5240, .hw_value = 48, },
1081         {.center_freq = 5260, .hw_value = 52, },
1082         {.center_freq = 5280, .hw_value = 56, },
1083         {.center_freq = 5300, .hw_value = 60, },
1084         {.center_freq = 5320, .hw_value = 64, },
1085         {.center_freq = 5500, .hw_value = 100, },
1086         {.center_freq = 5520, .hw_value = 104, },
1087         {.center_freq = 5540, .hw_value = 108, },
1088         {.center_freq = 5560, .hw_value = 112, },
1089         {.center_freq = 5580, .hw_value = 116, },
1090         {.center_freq = 5600, .hw_value = 120, },
1091         {.center_freq = 5620, .hw_value = 124, },
1092         {.center_freq = 5640, .hw_value = 128, },
1093         {.center_freq = 5660, .hw_value = 132, },
1094         {.center_freq = 5680, .hw_value = 136, },
1095         {.center_freq = 5700, .hw_value = 140, },
1096         {.center_freq = 5745, .hw_value = 149, },
1097         {.center_freq = 5765, .hw_value = 153, },
1098         {.center_freq = 5785, .hw_value = 157, },
1099         {.center_freq = 5805, .hw_value = 161, },
1100         {.center_freq = 5825, .hw_value = 165, },
1101 };
1102
1103 static struct ieee80211_supported_band mwifiex_band_5ghz = {
1104         .channels = mwifiex_channels_5ghz,
1105         .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz),
1106         .bitrates = mwifiex_rates + 4,
1107         .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4,
1108 };
1109
1110
1111 /* Supported crypto cipher suits to be advertised to cfg80211 */
1112 static const u32 mwifiex_cipher_suites[] = {
1113         WLAN_CIPHER_SUITE_WEP40,
1114         WLAN_CIPHER_SUITE_WEP104,
1115         WLAN_CIPHER_SUITE_TKIP,
1116         WLAN_CIPHER_SUITE_CCMP,
1117         WLAN_CIPHER_SUITE_AES_CMAC,
1118 };
1119
1120 /* Supported mgmt frame types to be advertised to cfg80211 */
1121 static const struct ieee80211_txrx_stypes
1122 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = {
1123         [NL80211_IFTYPE_STATION] = {
1124                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1125                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1126                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1127                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1128         },
1129         [NL80211_IFTYPE_AP] = {
1130                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1131                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1132                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1133                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1134         },
1135         [NL80211_IFTYPE_P2P_CLIENT] = {
1136                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1137                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1138                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1139                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1140         },
1141         [NL80211_IFTYPE_P2P_GO] = {
1142                 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1143                       BIT(IEEE80211_STYPE_PROBE_RESP >> 4),
1144                 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) |
1145                       BIT(IEEE80211_STYPE_PROBE_REQ >> 4),
1146         },
1147 };
1148
1149 /*
1150  * CFG802.11 operation handler for setting bit rates.
1151  *
1152  * Function configures data rates to firmware using bitrate mask
1153  * provided by cfg80211.
1154  */
1155 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy,
1156                                 struct net_device *dev,
1157                                 const u8 *peer,
1158                                 const struct cfg80211_bitrate_mask *mask)
1159 {
1160         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1161         u16 bitmap_rates[MAX_BITMAP_RATES_SIZE];
1162         enum ieee80211_band band;
1163
1164         if (!priv->media_connected) {
1165                 dev_err(priv->adapter->dev,
1166                         "Can not set Tx data rate in disconnected state\n");
1167                 return -EINVAL;
1168         }
1169
1170         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1171
1172         memset(bitmap_rates, 0, sizeof(bitmap_rates));
1173
1174         /* Fill HR/DSSS rates. */
1175         if (band == IEEE80211_BAND_2GHZ)
1176                 bitmap_rates[0] = mask->control[band].legacy & 0x000f;
1177
1178         /* Fill OFDM rates */
1179         if (band == IEEE80211_BAND_2GHZ)
1180                 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4;
1181         else
1182                 bitmap_rates[1] = mask->control[band].legacy;
1183
1184         /* Fill HT MCS rates */
1185         bitmap_rates[2] = mask->control[band].ht_mcs[0];
1186         if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2)
1187                 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8;
1188
1189         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG,
1190                                      HostCmd_ACT_GEN_SET, 0, bitmap_rates);
1191 }
1192
1193 /*
1194  * CFG802.11 operation handler for connection quality monitoring.
1195  *
1196  * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI
1197  * events to FW.
1198  */
1199 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy,
1200                                                 struct net_device *dev,
1201                                                 s32 rssi_thold, u32 rssi_hyst)
1202 {
1203         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1204         struct mwifiex_ds_misc_subsc_evt subsc_evt;
1205
1206         priv->cqm_rssi_thold = rssi_thold;
1207         priv->cqm_rssi_hyst = rssi_hyst;
1208
1209         memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt));
1210         subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH;
1211
1212         /* Subscribe/unsubscribe low and high rssi events */
1213         if (rssi_thold && rssi_hyst) {
1214                 subsc_evt.action = HostCmd_ACT_BITWISE_SET;
1215                 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold);
1216                 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold);
1217                 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1;
1218                 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1;
1219                 return mwifiex_send_cmd_sync(priv,
1220                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1221                                              0, 0, &subsc_evt);
1222         } else {
1223                 subsc_evt.action = HostCmd_ACT_BITWISE_CLR;
1224                 return mwifiex_send_cmd_sync(priv,
1225                                              HostCmd_CMD_802_11_SUBSCRIBE_EVENT,
1226                                              0, 0, &subsc_evt);
1227         }
1228
1229         return 0;
1230 }
1231
1232 /* cfg80211 operation handler for change_beacon.
1233  * Function retrieves and sets modified management IEs to FW.
1234  */
1235 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy,
1236                                           struct net_device *dev,
1237                                           struct cfg80211_beacon_data *data)
1238 {
1239         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1240
1241         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) {
1242                 wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__);
1243                 return -EINVAL;
1244         }
1245
1246         if (!priv->bss_started) {
1247                 wiphy_err(wiphy, "%s: bss not started\n", __func__);
1248                 return -EINVAL;
1249         }
1250
1251         if (mwifiex_set_mgmt_ies(priv, data)) {
1252                 wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__);
1253                 return -EFAULT;
1254         }
1255
1256         return 0;
1257 }
1258
1259 /* cfg80211 operation handler for del_station.
1260  * Function deauthenticates station which value is provided in mac parameter.
1261  * If mac is NULL/broadcast, all stations in associated station list are
1262  * deauthenticated. If bss is not started or there are no stations in
1263  * associated stations list, no action is taken.
1264  */
1265 static int
1266 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1267                              u8 *mac)
1268 {
1269         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1270         struct mwifiex_sta_node *sta_node;
1271         unsigned long flags;
1272
1273         if (list_empty(&priv->sta_list) || !priv->bss_started)
1274                 return 0;
1275
1276         if (!mac || is_broadcast_ether_addr(mac)) {
1277                 wiphy_dbg(wiphy, "%s: NULL/broadcast mac address\n", __func__);
1278                 list_for_each_entry(sta_node, &priv->sta_list, list) {
1279                         if (mwifiex_send_cmd_sync(priv,
1280                                                   HostCmd_CMD_UAP_STA_DEAUTH,
1281                                                   HostCmd_ACT_GEN_SET, 0,
1282                                                   sta_node->mac_addr))
1283                                 return -1;
1284                         mwifiex_uap_del_sta_data(priv, sta_node);
1285                 }
1286         } else {
1287                 wiphy_dbg(wiphy, "%s: mac address %pM\n", __func__, mac);
1288                 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1289                 sta_node = mwifiex_get_sta_entry(priv, mac);
1290                 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1291                 if (sta_node) {
1292                         if (mwifiex_send_cmd_sync(priv,
1293                                                   HostCmd_CMD_UAP_STA_DEAUTH,
1294                                                   HostCmd_ACT_GEN_SET, 0,
1295                                                   sta_node->mac_addr))
1296                                 return -1;
1297                         mwifiex_uap_del_sta_data(priv, sta_node);
1298                 }
1299         }
1300
1301         return 0;
1302 }
1303
1304 static int
1305 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1306 {
1307         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
1308         struct mwifiex_private *priv = mwifiex_get_priv(adapter,
1309                                                         MWIFIEX_BSS_ROLE_ANY);
1310         struct mwifiex_ds_ant_cfg ant_cfg;
1311
1312         if (!tx_ant || !rx_ant)
1313                 return -EOPNOTSUPP;
1314
1315         if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) {
1316                 /* Not a MIMO chip. User should provide specific antenna number
1317                  * for Tx/Rx path or enable all antennas for diversity
1318                  */
1319                 if (tx_ant != rx_ant)
1320                         return -EOPNOTSUPP;
1321
1322                 if ((tx_ant & (tx_ant - 1)) &&
1323                     (tx_ant != BIT(adapter->number_of_antenna) - 1))
1324                         return -EOPNOTSUPP;
1325
1326                 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) &&
1327                     (priv->adapter->number_of_antenna > 1)) {
1328                         tx_ant = RF_ANTENNA_AUTO;
1329                         rx_ant = RF_ANTENNA_AUTO;
1330                 }
1331         }
1332
1333         ant_cfg.tx_ant = tx_ant;
1334         ant_cfg.rx_ant = rx_ant;
1335
1336         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA,
1337                                      HostCmd_ACT_GEN_SET, 0, &ant_cfg);
1338 }
1339
1340 /* cfg80211 operation handler for stop ap.
1341  * Function stops BSS running at uAP interface.
1342  */
1343 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1344 {
1345         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1346
1347         if (mwifiex_del_mgmt_ies(priv))
1348                 wiphy_err(wiphy, "Failed to delete mgmt IEs!\n");
1349
1350         priv->ap_11n_enabled = 0;
1351
1352         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1353                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1354                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1355                 return -1;
1356         }
1357
1358         return 0;
1359 }
1360
1361 /* cfg80211 operation handler for start_ap.
1362  * Function sets beacon period, DTIM period, SSID and security into
1363  * AP config structure.
1364  * AP is configured with these settings and BSS is started.
1365  */
1366 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy,
1367                                      struct net_device *dev,
1368                                      struct cfg80211_ap_settings *params)
1369 {
1370         struct mwifiex_uap_bss_param *bss_cfg;
1371         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1372         u8 config_bands = 0;
1373
1374         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP)
1375                 return -1;
1376         if (mwifiex_set_mgmt_ies(priv, &params->beacon))
1377                 return -1;
1378
1379         bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL);
1380         if (!bss_cfg)
1381                 return -ENOMEM;
1382
1383         mwifiex_set_sys_config_invalid_data(bss_cfg);
1384
1385         if (params->beacon_interval)
1386                 bss_cfg->beacon_period = params->beacon_interval;
1387         if (params->dtim_period)
1388                 bss_cfg->dtim_period = params->dtim_period;
1389
1390         if (params->ssid && params->ssid_len) {
1391                 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len);
1392                 bss_cfg->ssid.ssid_len = params->ssid_len;
1393         }
1394
1395         switch (params->hidden_ssid) {
1396         case NL80211_HIDDEN_SSID_NOT_IN_USE:
1397                 bss_cfg->bcast_ssid_ctl = 1;
1398                 break;
1399         case NL80211_HIDDEN_SSID_ZERO_LEN:
1400                 bss_cfg->bcast_ssid_ctl = 0;
1401                 break;
1402         case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
1403                 /* firmware doesn't support this type of hidden SSID */
1404         default:
1405                 kfree(bss_cfg);
1406                 return -EINVAL;
1407         }
1408
1409         bss_cfg->channel = ieee80211_frequency_to_channel(
1410                                 params->chandef.chan->center_freq);
1411
1412         /* Set appropriate bands */
1413         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1414                 bss_cfg->band_cfg = BAND_CONFIG_BG;
1415                 config_bands = BAND_B | BAND_G;
1416
1417                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1418                         config_bands |= BAND_GN;
1419
1420                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1421                         config_bands |= BAND_GAC;
1422         } else {
1423                 bss_cfg->band_cfg = BAND_CONFIG_A;
1424                 config_bands = BAND_A;
1425
1426                 if (params->chandef.width > NL80211_CHAN_WIDTH_20_NOHT)
1427                         config_bands |= BAND_AN;
1428
1429                 if (params->chandef.width > NL80211_CHAN_WIDTH_40)
1430                         config_bands |= BAND_AAC;
1431         }
1432
1433         if (!((config_bands | priv->adapter->fw_bands) &
1434               ~priv->adapter->fw_bands))
1435                 priv->adapter->config_bands = config_bands;
1436
1437         mwifiex_set_uap_rates(bss_cfg, params);
1438         mwifiex_send_domain_info_cmd_fw(wiphy);
1439
1440         if (mwifiex_set_secure_params(priv, bss_cfg, params)) {
1441                 kfree(bss_cfg);
1442                 wiphy_err(wiphy, "Failed to parse secuirty parameters!\n");
1443                 return -1;
1444         }
1445
1446         mwifiex_set_ht_params(priv, bss_cfg, params);
1447
1448         if (priv->adapter->is_hw_11ac_capable) {
1449                 mwifiex_set_vht_params(priv, bss_cfg, params);
1450                 mwifiex_set_vht_width(priv, params->chandef.width,
1451                                       priv->ap_11ac_enabled);
1452         }
1453
1454         if (priv->ap_11ac_enabled)
1455                 mwifiex_set_11ac_ba_params(priv);
1456         else
1457                 mwifiex_set_ba_params(priv);
1458
1459         mwifiex_set_wmm_params(priv, bss_cfg, params);
1460
1461         if (params->inactivity_timeout > 0) {
1462                 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */
1463                 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout;
1464                 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout;
1465         }
1466
1467         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP,
1468                                   HostCmd_ACT_GEN_SET, 0, NULL)) {
1469                 wiphy_err(wiphy, "Failed to stop the BSS\n");
1470                 kfree(bss_cfg);
1471                 return -1;
1472         }
1473
1474         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
1475                                    HostCmd_ACT_GEN_SET,
1476                                    UAP_BSS_PARAMS_I, bss_cfg)) {
1477                 wiphy_err(wiphy, "Failed to set the SSID\n");
1478                 kfree(bss_cfg);
1479                 return -1;
1480         }
1481
1482         kfree(bss_cfg);
1483
1484         if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START,
1485                                    HostCmd_ACT_GEN_SET, 0, NULL)) {
1486                 wiphy_err(wiphy, "Failed to start the BSS\n");
1487                 return -1;
1488         }
1489
1490         if (priv->sec_info.wep_enabled)
1491                 priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE;
1492         else
1493                 priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE;
1494
1495         if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL,
1496                                   HostCmd_ACT_GEN_SET, 0,
1497                                   &priv->curr_pkt_filter))
1498                 return -1;
1499
1500         return 0;
1501 }
1502
1503 /*
1504  * CFG802.11 operation handler for disconnection request.
1505  *
1506  * This function does not work when there is already a disconnection
1507  * procedure going on.
1508  */
1509 static int
1510 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev,
1511                             u16 reason_code)
1512 {
1513         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1514
1515         if (mwifiex_deauthenticate(priv, NULL))
1516                 return -EFAULT;
1517
1518         wiphy_dbg(wiphy, "info: successfully disconnected from %pM:"
1519                 " reason code %d\n", priv->cfg_bssid, reason_code);
1520
1521         memset(priv->cfg_bssid, 0, ETH_ALEN);
1522         priv->hs2_enabled = false;
1523
1524         return 0;
1525 }
1526
1527 /*
1528  * This function informs the CFG802.11 subsystem of a new IBSS.
1529  *
1530  * The following information are sent to the CFG802.11 subsystem
1531  * to register the new IBSS. If we do not register the new IBSS,
1532  * a kernel panic will result.
1533  *      - SSID
1534  *      - SSID length
1535  *      - BSSID
1536  *      - Channel
1537  */
1538 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv)
1539 {
1540         struct ieee80211_channel *chan;
1541         struct mwifiex_bss_info bss_info;
1542         struct cfg80211_bss *bss;
1543         int ie_len;
1544         u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)];
1545         enum ieee80211_band band;
1546
1547         if (mwifiex_get_bss_info(priv, &bss_info))
1548                 return -1;
1549
1550         ie_buf[0] = WLAN_EID_SSID;
1551         ie_buf[1] = bss_info.ssid.ssid_len;
1552
1553         memcpy(&ie_buf[sizeof(struct ieee_types_header)],
1554                &bss_info.ssid.ssid, bss_info.ssid.ssid_len);
1555         ie_len = ie_buf[1] + sizeof(struct ieee_types_header);
1556
1557         band = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
1558         chan = __ieee80211_get_channel(priv->wdev->wiphy,
1559                         ieee80211_channel_to_frequency(bss_info.bss_chan,
1560                                                        band));
1561
1562         bss = cfg80211_inform_bss(priv->wdev->wiphy, chan,
1563                                   bss_info.bssid, 0, WLAN_CAPABILITY_IBSS,
1564                                   0, ie_buf, ie_len, 0, GFP_KERNEL);
1565         cfg80211_put_bss(priv->wdev->wiphy, bss);
1566         memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN);
1567
1568         return 0;
1569 }
1570
1571 /*
1572  * This function connects with a BSS.
1573  *
1574  * This function handles both Infra and Ad-Hoc modes. It also performs
1575  * validity checking on the provided parameters, disconnects from the
1576  * current BSS (if any), sets up the association/scan parameters,
1577  * including security settings, and performs specific SSID scan before
1578  * trying to connect.
1579  *
1580  * For Infra mode, the function returns failure if the specified SSID
1581  * is not found in scan table. However, for Ad-Hoc mode, it can create
1582  * the IBSS if it does not exist. On successful completion in either case,
1583  * the function notifies the CFG802.11 subsystem of the new BSS connection.
1584  */
1585 static int
1586 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid,
1587                        u8 *bssid, int mode, struct ieee80211_channel *channel,
1588                        struct cfg80211_connect_params *sme, bool privacy)
1589 {
1590         struct cfg80211_ssid req_ssid;
1591         int ret, auth_type = 0;
1592         struct cfg80211_bss *bss = NULL;
1593         u8 is_scanning_required = 0;
1594
1595         memset(&req_ssid, 0, sizeof(struct cfg80211_ssid));
1596
1597         req_ssid.ssid_len = ssid_len;
1598         if (ssid_len > IEEE80211_MAX_SSID_LEN) {
1599                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1600                 return -EINVAL;
1601         }
1602
1603         memcpy(req_ssid.ssid, ssid, ssid_len);
1604         if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) {
1605                 dev_err(priv->adapter->dev, "invalid SSID - aborting\n");
1606                 return -EINVAL;
1607         }
1608
1609         /* disconnect before try to associate */
1610         mwifiex_deauthenticate(priv, NULL);
1611
1612         /* As this is new association, clear locally stored
1613          * keys and security related flags */
1614         priv->sec_info.wpa_enabled = false;
1615         priv->sec_info.wpa2_enabled = false;
1616         priv->wep_key_curr_index = 0;
1617         priv->sec_info.encryption_mode = 0;
1618         priv->sec_info.is_authtype_auto = 0;
1619         ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1);
1620
1621         if (mode == NL80211_IFTYPE_ADHOC) {
1622                 /* "privacy" is set only for ad-hoc mode */
1623                 if (privacy) {
1624                         /*
1625                          * Keep WLAN_CIPHER_SUITE_WEP104 for now so that
1626                          * the firmware can find a matching network from the
1627                          * scan. The cfg80211 does not give us the encryption
1628                          * mode at this stage so just setting it to WEP here.
1629                          */
1630                         priv->sec_info.encryption_mode =
1631                                         WLAN_CIPHER_SUITE_WEP104;
1632                         priv->sec_info.authentication_mode =
1633                                         NL80211_AUTHTYPE_OPEN_SYSTEM;
1634                 }
1635
1636                 goto done;
1637         }
1638
1639         /* Now handle infra mode. "sme" is valid for infra mode only */
1640         if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) {
1641                 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
1642                 priv->sec_info.is_authtype_auto = 1;
1643         } else {
1644                 auth_type = sme->auth_type;
1645         }
1646
1647         if (sme->crypto.n_ciphers_pairwise) {
1648                 priv->sec_info.encryption_mode =
1649                                                 sme->crypto.ciphers_pairwise[0];
1650                 priv->sec_info.authentication_mode = auth_type;
1651         }
1652
1653         if (sme->crypto.cipher_group) {
1654                 priv->sec_info.encryption_mode = sme->crypto.cipher_group;
1655                 priv->sec_info.authentication_mode = auth_type;
1656         }
1657         if (sme->ie)
1658                 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len);
1659
1660         if (sme->key) {
1661                 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) {
1662                         dev_dbg(priv->adapter->dev,
1663                                 "info: setting wep encryption"
1664                                 " with key len %d\n", sme->key_len);
1665                         priv->wep_key_curr_index = sme->key_idx;
1666                         ret = mwifiex_set_encode(priv, NULL, sme->key,
1667                                                  sme->key_len, sme->key_idx,
1668                                                  NULL, 0);
1669                 }
1670         }
1671 done:
1672         /*
1673          * Scan entries are valid for some time (15 sec). So we can save one
1674          * active scan time if we just try cfg80211_get_bss first. If it fails
1675          * then request scan and cfg80211_get_bss() again for final output.
1676          */
1677         while (1) {
1678                 if (is_scanning_required) {
1679                         /* Do specific SSID scanning */
1680                         if (mwifiex_request_scan(priv, &req_ssid)) {
1681                                 dev_err(priv->adapter->dev, "scan error\n");
1682                                 return -EFAULT;
1683                         }
1684                 }
1685
1686                 /* Find the BSS we want using available scan results */
1687                 if (mode == NL80211_IFTYPE_ADHOC)
1688                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1689                                                bssid, ssid, ssid_len,
1690                                                WLAN_CAPABILITY_IBSS,
1691                                                WLAN_CAPABILITY_IBSS);
1692                 else
1693                         bss = cfg80211_get_bss(priv->wdev->wiphy, channel,
1694                                                bssid, ssid, ssid_len,
1695                                                WLAN_CAPABILITY_ESS,
1696                                                WLAN_CAPABILITY_ESS);
1697
1698                 if (!bss) {
1699                         if (is_scanning_required) {
1700                                 dev_warn(priv->adapter->dev,
1701                                          "assoc: requested bss not found in scan results\n");
1702                                 break;
1703                         }
1704                         is_scanning_required = 1;
1705                 } else {
1706                         dev_dbg(priv->adapter->dev,
1707                                 "info: trying to associate to '%s' bssid %pM\n",
1708                                 (char *) req_ssid.ssid, bss->bssid);
1709                         memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN);
1710                         break;
1711                 }
1712         }
1713
1714         ret = mwifiex_bss_start(priv, bss, &req_ssid);
1715         if (ret)
1716                 return ret;
1717
1718         if (mode == NL80211_IFTYPE_ADHOC) {
1719                 /* Inform the BSS information to kernel, otherwise
1720                  * kernel will give a panic after successful assoc */
1721                 if (mwifiex_cfg80211_inform_ibss_bss(priv))
1722                         return -EFAULT;
1723         }
1724
1725         return ret;
1726 }
1727
1728 /*
1729  * CFG802.11 operation handler for association request.
1730  *
1731  * This function does not work when the current mode is set to Ad-Hoc, or
1732  * when there is already an association procedure going on. The given BSS
1733  * information is used to associate.
1734  */
1735 static int
1736 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev,
1737                          struct cfg80211_connect_params *sme)
1738 {
1739         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1740         int ret;
1741
1742         if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) {
1743                 wiphy_err(wiphy,
1744                           "%s: reject infra assoc request in non-STA role\n",
1745                           dev->name);
1746                 return -EINVAL;
1747         }
1748
1749         wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n",
1750                   (char *) sme->ssid, sme->bssid);
1751
1752         ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid,
1753                                      priv->bss_mode, sme->channel, sme, 0);
1754         if (!ret) {
1755                 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0,
1756                                         NULL, 0, WLAN_STATUS_SUCCESS,
1757                                         GFP_KERNEL);
1758                 dev_dbg(priv->adapter->dev,
1759                         "info: associated to bssid %pM successfully\n",
1760                         priv->cfg_bssid);
1761         } else {
1762                 dev_dbg(priv->adapter->dev,
1763                         "info: association to bssid %pM failed\n",
1764                         priv->cfg_bssid);
1765                 memset(priv->cfg_bssid, 0, ETH_ALEN);
1766
1767                 if (ret > 0)
1768                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1769                                                 NULL, 0, NULL, 0, ret,
1770                                                 GFP_KERNEL);
1771                 else
1772                         cfg80211_connect_result(priv->netdev, priv->cfg_bssid,
1773                                                 NULL, 0, NULL, 0,
1774                                                 WLAN_STATUS_UNSPECIFIED_FAILURE,
1775                                                 GFP_KERNEL);
1776         }
1777
1778         return 0;
1779 }
1780
1781 /*
1782  * This function sets following parameters for ibss network.
1783  *  -  channel
1784  *  -  start band
1785  *  -  11n flag
1786  *  -  secondary channel offset
1787  */
1788 static int mwifiex_set_ibss_params(struct mwifiex_private *priv,
1789                                    struct cfg80211_ibss_params *params)
1790 {
1791         struct wiphy *wiphy = priv->wdev->wiphy;
1792         struct mwifiex_adapter *adapter = priv->adapter;
1793         int index = 0, i;
1794         u8 config_bands = 0;
1795
1796         if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) {
1797                 if (!params->basic_rates) {
1798                         config_bands = BAND_B | BAND_G;
1799                 } else {
1800                         for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) {
1801                                 /*
1802                                  * Rates below 6 Mbps in the table are CCK
1803                                  * rates; 802.11b and from 6 they are OFDM;
1804                                  * 802.11G
1805                                  */
1806                                 if (mwifiex_rates[i].bitrate == 60) {
1807                                         index = 1 << i;
1808                                         break;
1809                                 }
1810                         }
1811
1812                         if (params->basic_rates < index) {
1813                                 config_bands = BAND_B;
1814                         } else {
1815                                 config_bands = BAND_G;
1816                                 if (params->basic_rates % index)
1817                                         config_bands |= BAND_B;
1818                         }
1819                 }
1820
1821                 if (cfg80211_get_chandef_type(&params->chandef) !=
1822                                                 NL80211_CHAN_NO_HT)
1823                         config_bands |= BAND_G | BAND_GN;
1824         } else {
1825                 if (cfg80211_get_chandef_type(&params->chandef) ==
1826                                                 NL80211_CHAN_NO_HT)
1827                         config_bands = BAND_A;
1828                 else
1829                         config_bands = BAND_AN | BAND_A;
1830         }
1831
1832         if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) {
1833                 adapter->config_bands = config_bands;
1834                 adapter->adhoc_start_band = config_bands;
1835
1836                 if ((config_bands & BAND_GN) || (config_bands & BAND_AN))
1837                         adapter->adhoc_11n_enabled = true;
1838                 else
1839                         adapter->adhoc_11n_enabled = false;
1840         }
1841
1842         adapter->sec_chan_offset =
1843                 mwifiex_chan_type_to_sec_chan_offset(
1844                         cfg80211_get_chandef_type(&params->chandef));
1845         priv->adhoc_channel = ieee80211_frequency_to_channel(
1846                                 params->chandef.chan->center_freq);
1847
1848         wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n",
1849                   config_bands, priv->adhoc_channel, adapter->sec_chan_offset);
1850
1851         return 0;
1852 }
1853
1854 /*
1855  * CFG802.11 operation handler to join an IBSS.
1856  *
1857  * This function does not work in any mode other than Ad-Hoc, or if
1858  * a join operation is already in progress.
1859  */
1860 static int
1861 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1862                            struct cfg80211_ibss_params *params)
1863 {
1864         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1865         int ret = 0;
1866
1867         if (priv->bss_mode != NL80211_IFTYPE_ADHOC) {
1868                 wiphy_err(wiphy, "request to join ibss received "
1869                                 "when station is not in ibss mode\n");
1870                 goto done;
1871         }
1872
1873         wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n",
1874                   (char *) params->ssid, params->bssid);
1875
1876         mwifiex_set_ibss_params(priv, params);
1877
1878         ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid,
1879                                      params->bssid, priv->bss_mode,
1880                                      params->chandef.chan, NULL,
1881                                      params->privacy);
1882 done:
1883         if (!ret) {
1884                 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL);
1885                 dev_dbg(priv->adapter->dev,
1886                         "info: joined/created adhoc network with bssid"
1887                         " %pM successfully\n", priv->cfg_bssid);
1888         } else {
1889                 dev_dbg(priv->adapter->dev,
1890                         "info: failed creating/joining adhoc network\n");
1891         }
1892
1893         return ret;
1894 }
1895
1896 /*
1897  * CFG802.11 operation handler to leave an IBSS.
1898  *
1899  * This function does not work if a leave operation is
1900  * already in progress.
1901  */
1902 static int
1903 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1904 {
1905         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1906
1907         wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n",
1908                   priv->cfg_bssid);
1909         if (mwifiex_deauthenticate(priv, NULL))
1910                 return -EFAULT;
1911
1912         memset(priv->cfg_bssid, 0, ETH_ALEN);
1913
1914         return 0;
1915 }
1916
1917 /*
1918  * CFG802.11 operation handler for scan request.
1919  *
1920  * This function issues a scan request to the firmware based upon
1921  * the user specified scan configuration. On successfull completion,
1922  * it also informs the results.
1923  */
1924 static int
1925 mwifiex_cfg80211_scan(struct wiphy *wiphy,
1926                       struct cfg80211_scan_request *request)
1927 {
1928         struct net_device *dev = request->wdev->netdev;
1929         struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev);
1930         int i, offset, ret;
1931         struct ieee80211_channel *chan;
1932         struct ieee_types_header *ie;
1933         struct mwifiex_user_scan_cfg *user_scan_cfg;
1934
1935         wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name);
1936
1937         if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) &&
1938             atomic_read(&priv->wmm.tx_pkts_queued) >=
1939             MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) {
1940                 dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n");
1941                 return -EBUSY;
1942         }
1943
1944         /* Block scan request if scan operation or scan cleanup when interface
1945          * is disabled is in process
1946          */
1947         if (priv->scan_request || priv->scan_aborting) {
1948                 dev_err(priv->adapter->dev, "cmd: Scan already in process..\n");
1949                 return -EBUSY;
1950         }
1951
1952         user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL);
1953         if (!user_scan_cfg)
1954                 return -ENOMEM;
1955
1956         priv->scan_request = request;
1957
1958         user_scan_cfg->num_ssids = request->n_ssids;
1959         user_scan_cfg->ssid_list = request->ssids;
1960
1961         if (request->ie && request->ie_len) {
1962                 offset = 0;
1963                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
1964                         if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR)
1965                                 continue;
1966                         priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN;
1967                         ie = (struct ieee_types_header *)(request->ie + offset);
1968                         memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len);
1969                         offset += sizeof(*ie) + ie->len;
1970
1971                         if (offset >= request->ie_len)
1972                                 break;
1973                 }
1974         }
1975
1976         for (i = 0; i < min_t(u32, request->n_channels,
1977                               MWIFIEX_USER_SCAN_CHAN_MAX); i++) {
1978                 chan = request->channels[i];
1979                 user_scan_cfg->chan_list[i].chan_number = chan->hw_value;
1980                 user_scan_cfg->chan_list[i].radio_type = chan->band;
1981
1982                 if (chan->flags & IEEE80211_CHAN_NO_IR)
1983                         user_scan_cfg->chan_list[i].scan_type =
1984                                                 MWIFIEX_SCAN_TYPE_PASSIVE;
1985                 else
1986                         user_scan_cfg->chan_list[i].scan_type =
1987                                                 MWIFIEX_SCAN_TYPE_ACTIVE;
1988
1989                 user_scan_cfg->chan_list[i].scan_time = 0;
1990         }
1991
1992         ret = mwifiex_scan_networks(priv, user_scan_cfg);
1993         kfree(user_scan_cfg);
1994         if (ret) {
1995                 dev_err(priv->adapter->dev, "scan failed: %d\n", ret);
1996                 priv->scan_aborting = false;
1997                 priv->scan_request = NULL;
1998                 return ret;
1999         }
2000
2001         if (request->ie && request->ie_len) {
2002                 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) {
2003                         if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) {
2004                                 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR;
2005                                 memset(&priv->vs_ie[i].ie, 0,
2006                                        MWIFIEX_MAX_VSIE_LEN);
2007                         }
2008                 }
2009         }
2010         return 0;
2011 }
2012
2013 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info,
2014                                    struct mwifiex_private *priv)
2015 {
2016         struct mwifiex_adapter *adapter = priv->adapter;
2017
2018         vht_info->vht_supported = true;
2019
2020         vht_info->cap = adapter->hw_dot_11ac_dev_cap;
2021         /* Update MCS support for VHT */
2022         vht_info->vht_mcs.rx_mcs_map = cpu_to_le16(
2023                                 adapter->hw_dot_11ac_mcs_support & 0xFFFF);
2024         vht_info->vht_mcs.rx_highest = 0;
2025         vht_info->vht_mcs.tx_mcs_map = cpu_to_le16(
2026                                 adapter->hw_dot_11ac_mcs_support >> 16);
2027         vht_info->vht_mcs.tx_highest = 0;
2028 }
2029
2030 /*
2031  * This function sets up the CFG802.11 specific HT capability fields
2032  * with default values.
2033  *
2034  * The following default values are set -
2035  *      - HT Supported = True
2036  *      - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K
2037  *      - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE
2038  *      - HT Capabilities supported by firmware
2039  *      - MCS information, Rx mask = 0xff
2040  *      - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01)
2041  */
2042 static void
2043 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info,
2044                       struct mwifiex_private *priv)
2045 {
2046         int rx_mcs_supp;
2047         struct ieee80211_mcs_info mcs_set;
2048         u8 *mcs = (u8 *)&mcs_set;
2049         struct mwifiex_adapter *adapter = priv->adapter;
2050
2051         ht_info->ht_supported = true;
2052         ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2053         ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2054
2055         memset(&ht_info->mcs, 0, sizeof(ht_info->mcs));
2056
2057         /* Fill HT capability information */
2058         if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2059                 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2060         else
2061                 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2062
2063         if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap))
2064                 ht_info->cap |= IEEE80211_HT_CAP_SGI_20;
2065         else
2066                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20;
2067
2068         if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap))
2069                 ht_info->cap |= IEEE80211_HT_CAP_SGI_40;
2070         else
2071                 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40;
2072
2073         if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap))
2074                 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT;
2075         else
2076                 ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT);
2077
2078         if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap))
2079                 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC;
2080         else
2081                 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC;
2082
2083         if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap))
2084                 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD;
2085         else
2086                 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD;
2087
2088         if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap))
2089                 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2090         else
2091                 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT;
2092
2093         if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap))
2094                 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING;
2095         else
2096                 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING;
2097
2098         ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU;
2099         ht_info->cap |= IEEE80211_HT_CAP_SM_PS;
2100
2101         rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support);
2102         /* Set MCS for 1x1 */
2103         memset(mcs, 0xff, rx_mcs_supp);
2104         /* Clear all the other values */
2105         memset(&mcs[rx_mcs_supp], 0,
2106                sizeof(struct ieee80211_mcs_info) - rx_mcs_supp);
2107         if (priv->bss_mode == NL80211_IFTYPE_STATION ||
2108             ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap))
2109                 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */
2110                 SETHT_MCS32(mcs_set.rx_mask);
2111
2112         memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info));
2113
2114         ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2115 }
2116
2117 /*
2118  *  create a new virtual interface with the given name
2119  */
2120 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
2121                                               const char *name,
2122                                               enum nl80211_iftype type,
2123                                               u32 *flags,
2124                                               struct vif_params *params)
2125 {
2126         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2127         struct mwifiex_private *priv;
2128         struct net_device *dev;
2129         void *mdev_priv;
2130         struct wireless_dev *wdev;
2131
2132         if (!adapter)
2133                 return ERR_PTR(-EFAULT);
2134
2135         switch (type) {
2136         case NL80211_IFTYPE_UNSPECIFIED:
2137         case NL80211_IFTYPE_STATION:
2138         case NL80211_IFTYPE_ADHOC:
2139                 priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2140                 if (priv->bss_mode) {
2141                         wiphy_err(wiphy,
2142                                   "cannot create multiple sta/adhoc ifaces\n");
2143                         return ERR_PTR(-EINVAL);
2144                 }
2145
2146                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2147                 if (!wdev)
2148                         return ERR_PTR(-ENOMEM);
2149
2150                 wdev->wiphy = wiphy;
2151                 priv->wdev = wdev;
2152                 wdev->iftype = NL80211_IFTYPE_STATION;
2153
2154                 if (type == NL80211_IFTYPE_UNSPECIFIED)
2155                         priv->bss_mode = NL80211_IFTYPE_STATION;
2156                 else
2157                         priv->bss_mode = type;
2158
2159                 priv->bss_type = MWIFIEX_BSS_TYPE_STA;
2160                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2161                 priv->bss_priority = 0;
2162                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2163                 priv->bss_num = 0;
2164
2165                 break;
2166         case NL80211_IFTYPE_AP:
2167                 priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP];
2168
2169                 if (priv->bss_mode) {
2170                         wiphy_err(wiphy, "Can't create multiple AP interfaces");
2171                         return ERR_PTR(-EINVAL);
2172                 }
2173
2174                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2175                 if (!wdev)
2176                         return ERR_PTR(-ENOMEM);
2177
2178                 priv->wdev = wdev;
2179                 wdev->wiphy = wiphy;
2180                 wdev->iftype = NL80211_IFTYPE_AP;
2181
2182                 priv->bss_type = MWIFIEX_BSS_TYPE_UAP;
2183                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2184                 priv->bss_priority = 0;
2185                 priv->bss_role = MWIFIEX_BSS_ROLE_UAP;
2186                 priv->bss_started = 0;
2187                 priv->bss_num = 0;
2188                 priv->bss_mode = type;
2189
2190                 break;
2191         case NL80211_IFTYPE_P2P_CLIENT:
2192                 priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P];
2193
2194                 if (priv->bss_mode) {
2195                         wiphy_err(wiphy, "Can't create multiple P2P ifaces");
2196                         return ERR_PTR(-EINVAL);
2197                 }
2198
2199                 wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL);
2200                 if (!wdev)
2201                         return ERR_PTR(-ENOMEM);
2202
2203                 priv->wdev = wdev;
2204                 wdev->wiphy = wiphy;
2205
2206                 /* At start-up, wpa_supplicant tries to change the interface
2207                  * to NL80211_IFTYPE_STATION if it is not managed mode.
2208                  */
2209                 wdev->iftype = NL80211_IFTYPE_P2P_CLIENT;
2210                 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT;
2211
2212                 /* Setting bss_type to P2P tells firmware that this interface
2213                  * is receiving P2P peers found during find phase and doing
2214                  * action frame handshake.
2215                  */
2216                 priv->bss_type = MWIFIEX_BSS_TYPE_P2P;
2217
2218                 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II;
2219                 priv->bss_priority = MWIFIEX_BSS_ROLE_STA;
2220                 priv->bss_role = MWIFIEX_BSS_ROLE_STA;
2221                 priv->bss_started = 0;
2222                 priv->bss_num = 0;
2223
2224                 if (mwifiex_cfg80211_init_p2p_client(priv)) {
2225                         wdev = ERR_PTR(-EFAULT);
2226                         goto done;
2227                 }
2228
2229                 break;
2230         default:
2231                 wiphy_err(wiphy, "type not supported\n");
2232                 return ERR_PTR(-EINVAL);
2233         }
2234
2235         dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name,
2236                                ether_setup, IEEE80211_NUM_ACS, 1);
2237         if (!dev) {
2238                 wiphy_err(wiphy, "no memory available for netdevice\n");
2239                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2240                 wdev = ERR_PTR(-ENOMEM);
2241                 goto done;
2242         }
2243
2244         mwifiex_init_priv_params(priv, dev);
2245         priv->netdev = dev;
2246
2247         mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv);
2248         if (adapter->is_hw_11ac_capable)
2249                 mwifiex_setup_vht_caps(
2250                         &wiphy->bands[IEEE80211_BAND_2GHZ]->vht_cap, priv);
2251
2252         if (adapter->config_bands & BAND_A)
2253                 mwifiex_setup_ht_caps(
2254                         &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv);
2255
2256         if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable)
2257                 mwifiex_setup_vht_caps(
2258                         &wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap, priv);
2259
2260         dev_net_set(dev, wiphy_net(wiphy));
2261         dev->ieee80211_ptr = priv->wdev;
2262         dev->ieee80211_ptr->iftype = priv->bss_mode;
2263         memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN);
2264         SET_NETDEV_DEV(dev, wiphy_dev(wiphy));
2265
2266         dev->flags |= IFF_BROADCAST | IFF_MULTICAST;
2267         dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT;
2268         dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN;
2269         dev->ethtool_ops = &mwifiex_ethtool_ops;
2270
2271         mdev_priv = netdev_priv(dev);
2272         *((unsigned long *) mdev_priv) = (unsigned long) priv;
2273
2274         SET_NETDEV_DEV(dev, adapter->dev);
2275
2276         /* Register network device */
2277         if (register_netdevice(dev)) {
2278                 wiphy_err(wiphy, "cannot register virtual network device\n");
2279                 free_netdev(dev);
2280                 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2281                 priv->netdev = NULL;
2282                 wdev = ERR_PTR(-EFAULT);
2283                 goto done;
2284         }
2285
2286         sema_init(&priv->async_sem, 1);
2287
2288         dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name);
2289
2290 #ifdef CONFIG_DEBUG_FS
2291         mwifiex_dev_debugfs_init(priv);
2292 #endif
2293
2294 done:
2295         if (IS_ERR(wdev)) {
2296                 kfree(priv->wdev);
2297                 priv->wdev = NULL;
2298         }
2299
2300         return wdev;
2301 }
2302 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
2303
2304 /*
2305  * del_virtual_intf: remove the virtual interface determined by dev
2306  */
2307 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
2308 {
2309         struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev);
2310
2311 #ifdef CONFIG_DEBUG_FS
2312         mwifiex_dev_debugfs_remove(priv);
2313 #endif
2314
2315         mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter);
2316
2317         if (netif_carrier_ok(priv->netdev))
2318                 netif_carrier_off(priv->netdev);
2319
2320         if (wdev->netdev->reg_state == NETREG_REGISTERED)
2321                 unregister_netdevice(wdev->netdev);
2322
2323         /* Clear the priv in adapter */
2324         priv->netdev->ieee80211_ptr = NULL;
2325         priv->netdev = NULL;
2326         kfree(wdev);
2327         priv->wdev = NULL;
2328
2329         priv->media_connected = false;
2330
2331         priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
2332
2333         return 0;
2334 }
2335 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf);
2336
2337 static bool
2338 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq,
2339                              u8 max_byte_seq)
2340 {
2341         int j, k, valid_byte_cnt = 0;
2342         bool dont_care_byte = false;
2343
2344         for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) {
2345                 for (k = 0; k < 8; k++) {
2346                         if (pat->mask[j] & 1 << k) {
2347                                 memcpy(byte_seq + valid_byte_cnt,
2348                                        &pat->pattern[j * 8 + k], 1);
2349                                 valid_byte_cnt++;
2350                                 if (dont_care_byte)
2351                                         return false;
2352                         } else {
2353                                 if (valid_byte_cnt)
2354                                         dont_care_byte = true;
2355                         }
2356
2357                         if (valid_byte_cnt > max_byte_seq)
2358                                 return false;
2359                 }
2360         }
2361
2362         byte_seq[max_byte_seq] = valid_byte_cnt;
2363
2364         return true;
2365 }
2366
2367 #ifdef CONFIG_PM
2368 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy,
2369                                     struct cfg80211_wowlan *wowlan)
2370 {
2371         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2372         struct mwifiex_ds_mef_cfg mef_cfg;
2373         struct mwifiex_mef_entry *mef_entry;
2374         int i, filt_num = 0, ret;
2375         bool first_pat = true;
2376         u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1];
2377         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2378         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2379         struct mwifiex_private *priv =
2380                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2381
2382         if (!wowlan) {
2383                 dev_warn(adapter->dev, "None of the WOWLAN triggers enabled\n");
2384                 return 0;
2385         }
2386
2387         if (!priv->media_connected) {
2388                 dev_warn(adapter->dev,
2389                          "Can not configure WOWLAN in disconnected state\n");
2390                 return 0;
2391         }
2392
2393         mef_entry = kzalloc(sizeof(*mef_entry), GFP_KERNEL);
2394         if (!mef_entry)
2395                 return -ENOMEM;
2396
2397         memset(&mef_cfg, 0, sizeof(mef_cfg));
2398         mef_cfg.num_entries = 1;
2399         mef_cfg.mef_entry = mef_entry;
2400         mef_entry->mode = MEF_MODE_HOST_SLEEP;
2401         mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST;
2402
2403         for (i = 0; i < wowlan->n_patterns; i++) {
2404                 memset(byte_seq, 0, sizeof(byte_seq));
2405                 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i],
2406                                                   byte_seq,
2407                                                   MWIFIEX_MEF_MAX_BYTESEQ)) {
2408                         wiphy_err(wiphy, "Pattern not supported\n");
2409                         kfree(mef_entry);
2410                         return -EOPNOTSUPP;
2411                 }
2412
2413                 if (!wowlan->patterns[i].pkt_offset) {
2414                         if (!(byte_seq[0] & 0x01) &&
2415                             (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) {
2416                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2417                                 continue;
2418                         } else if (is_broadcast_ether_addr(byte_seq)) {
2419                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST;
2420                                 continue;
2421                         } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2422                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) ||
2423                                    (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2424                                     (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) {
2425                                 mef_cfg.criteria |= MWIFIEX_CRITERIA_MULTICAST;
2426                                 continue;
2427                         }
2428                 }
2429
2430                 mef_entry->filter[filt_num].repeat = 1;
2431                 mef_entry->filter[filt_num].offset =
2432                                                 wowlan->patterns[i].pkt_offset;
2433                 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq,
2434                        sizeof(byte_seq));
2435                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2436
2437                 if (first_pat)
2438                         first_pat = false;
2439                 else
2440                         mef_entry->filter[filt_num].filt_action = TYPE_AND;
2441
2442                 filt_num++;
2443         }
2444
2445         if (wowlan->magic_pkt) {
2446                 mef_cfg.criteria |= MWIFIEX_CRITERIA_UNICAST;
2447                 mef_entry->filter[filt_num].repeat = 16;
2448                 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr,
2449                        ETH_ALEN);
2450                 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] =
2451                                                                 ETH_ALEN;
2452                 mef_entry->filter[filt_num].offset = 28;
2453                 mef_entry->filter[filt_num].filt_type = TYPE_EQ;
2454                 if (filt_num)
2455                         mef_entry->filter[filt_num].filt_action = TYPE_OR;
2456         }
2457
2458         if (!mef_cfg.criteria)
2459                 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST |
2460                                    MWIFIEX_CRITERIA_UNICAST |
2461                                    MWIFIEX_CRITERIA_MULTICAST;
2462
2463         ret =  mwifiex_send_cmd_sync(priv, HostCmd_CMD_MEF_CFG,
2464                                      HostCmd_ACT_GEN_SET, 0,
2465                                      &mef_cfg);
2466
2467         kfree(mef_entry);
2468         return ret;
2469 }
2470
2471 static int mwifiex_cfg80211_resume(struct wiphy *wiphy)
2472 {
2473         return 0;
2474 }
2475
2476 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy,
2477                                        bool enabled)
2478 {
2479         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2480
2481         device_set_wakeup_enable(adapter->dev, enabled);
2482 }
2483 #endif
2484
2485 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq)
2486 {
2487         const u8 ipv4_mc_mac[] = {0x33, 0x33};
2488         const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e};
2489         const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff};
2490
2491         if ((byte_seq[0] & 0x01) &&
2492             (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1))
2493                 return PACKET_TYPE_UNICAST;
2494         else if (!memcmp(byte_seq, bc_mac, 4))
2495                 return PACKET_TYPE_BROADCAST;
2496         else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) &&
2497                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) ||
2498                  (!memcmp(byte_seq, ipv6_mc_mac, 3) &&
2499                   byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3))
2500                 return PACKET_TYPE_MULTICAST;
2501
2502         return 0;
2503 }
2504
2505 static int
2506 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv,
2507                                 struct cfg80211_coalesce_rules *crule,
2508                                 struct mwifiex_coalesce_rule *mrule)
2509 {
2510         u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1];
2511         struct filt_field_param *param;
2512         int i;
2513
2514         mrule->max_coalescing_delay = crule->delay;
2515
2516         param = mrule->params;
2517
2518         for (i = 0; i < crule->n_patterns; i++) {
2519                 memset(byte_seq, 0, sizeof(byte_seq));
2520                 if (!mwifiex_is_pattern_supported(&crule->patterns[i],
2521                                                   byte_seq,
2522                                                 MWIFIEX_COALESCE_MAX_BYTESEQ)) {
2523                         dev_err(priv->adapter->dev, "Pattern not supported\n");
2524                         return -EOPNOTSUPP;
2525                 }
2526
2527                 if (!crule->patterns[i].pkt_offset) {
2528                         u8 pkt_type;
2529
2530                         pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq);
2531                         if (pkt_type && mrule->pkt_type) {
2532                                 dev_err(priv->adapter->dev,
2533                                         "Multiple packet types not allowed\n");
2534                                 return -EOPNOTSUPP;
2535                         } else if (pkt_type) {
2536                                 mrule->pkt_type = pkt_type;
2537                                 continue;
2538                         }
2539                 }
2540
2541                 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH)
2542                         param->operation = RECV_FILTER_MATCH_TYPE_EQ;
2543                 else
2544                         param->operation = RECV_FILTER_MATCH_TYPE_NE;
2545
2546                 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ];
2547                 memcpy(param->operand_byte_stream, byte_seq,
2548                        param->operand_len);
2549                 param->offset = crule->patterns[i].pkt_offset;
2550                 param++;
2551
2552                 mrule->num_of_fields++;
2553         }
2554
2555         if (!mrule->pkt_type) {
2556                 dev_err(priv->adapter->dev,
2557                         "Packet type can not be determined\n");
2558                 return -EOPNOTSUPP;
2559         }
2560
2561         return 0;
2562 }
2563
2564 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy,
2565                                          struct cfg80211_coalesce *coalesce)
2566 {
2567         struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy);
2568         int i, ret;
2569         struct mwifiex_ds_coalesce_cfg coalesce_cfg;
2570         struct mwifiex_private *priv =
2571                         mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA);
2572
2573         memset(&coalesce_cfg, 0, sizeof(coalesce_cfg));
2574         if (!coalesce) {
2575                 dev_dbg(adapter->dev,
2576                         "Disable coalesce and reset all previous rules\n");
2577                 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2578                                              HostCmd_ACT_GEN_SET, 0,
2579                                              &coalesce_cfg);
2580         }
2581
2582         coalesce_cfg.num_of_rules = coalesce->n_rules;
2583         for (i = 0; i < coalesce->n_rules; i++) {
2584                 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i],
2585                                                       &coalesce_cfg.rule[i]);
2586                 if (ret) {
2587                         dev_err(priv->adapter->dev,
2588                                 "Recheck the patterns provided for rule %d\n",
2589                                 i + 1);
2590                         return ret;
2591                 }
2592         }
2593
2594         return mwifiex_send_cmd_sync(priv, HostCmd_CMD_COALESCE_CFG,
2595                                      HostCmd_ACT_GEN_SET, 0, &coalesce_cfg);
2596 }
2597
2598 /* station cfg80211 operations */
2599 static struct cfg80211_ops mwifiex_cfg80211_ops = {
2600         .add_virtual_intf = mwifiex_add_virtual_intf,
2601         .del_virtual_intf = mwifiex_del_virtual_intf,
2602         .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf,
2603         .scan = mwifiex_cfg80211_scan,
2604         .connect = mwifiex_cfg80211_connect,
2605         .disconnect = mwifiex_cfg80211_disconnect,
2606         .get_station = mwifiex_cfg80211_get_station,
2607         .dump_station = mwifiex_cfg80211_dump_station,
2608         .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params,
2609         .join_ibss = mwifiex_cfg80211_join_ibss,
2610         .leave_ibss = mwifiex_cfg80211_leave_ibss,
2611         .add_key = mwifiex_cfg80211_add_key,
2612         .del_key = mwifiex_cfg80211_del_key,
2613         .mgmt_tx = mwifiex_cfg80211_mgmt_tx,
2614         .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register,
2615         .remain_on_channel = mwifiex_cfg80211_remain_on_channel,
2616         .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel,
2617         .set_default_key = mwifiex_cfg80211_set_default_key,
2618         .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt,
2619         .set_tx_power = mwifiex_cfg80211_set_tx_power,
2620         .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask,
2621         .start_ap = mwifiex_cfg80211_start_ap,
2622         .stop_ap = mwifiex_cfg80211_stop_ap,
2623         .change_beacon = mwifiex_cfg80211_change_beacon,
2624         .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config,
2625         .set_antenna = mwifiex_cfg80211_set_antenna,
2626         .del_station = mwifiex_cfg80211_del_station,
2627 #ifdef CONFIG_PM
2628         .suspend = mwifiex_cfg80211_suspend,
2629         .resume = mwifiex_cfg80211_resume,
2630         .set_wakeup = mwifiex_cfg80211_set_wakeup,
2631 #endif
2632         .set_coalesce = mwifiex_cfg80211_set_coalesce,
2633 };
2634
2635 #ifdef CONFIG_PM
2636 static const struct wiphy_wowlan_support mwifiex_wowlan_support = {
2637         .flags = WIPHY_WOWLAN_MAGIC_PKT,
2638         .n_patterns = MWIFIEX_MEF_MAX_FILTERS,
2639         .pattern_min_len = 1,
2640         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2641         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2642 };
2643 #endif
2644
2645 static bool mwifiex_is_valid_alpha2(const char *alpha2)
2646 {
2647         if (!alpha2 || strlen(alpha2) != 2)
2648                 return false;
2649
2650         if (isalpha(alpha2[0]) && isalpha(alpha2[1]))
2651                 return true;
2652
2653         return false;
2654 }
2655
2656 static const struct wiphy_coalesce_support mwifiex_coalesce_support = {
2657         .n_rules = MWIFIEX_COALESCE_MAX_RULES,
2658         .max_delay = MWIFIEX_MAX_COALESCING_DELAY,
2659         .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS,
2660         .pattern_min_len = 1,
2661         .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN,
2662         .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN,
2663 };
2664
2665 /*
2666  * This function registers the device with CFG802.11 subsystem.
2667  *
2668  * The function creates the wireless device/wiphy, populates it with
2669  * default parameters and handler function pointers, and finally
2670  * registers the device.
2671  */
2672
2673 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
2674 {
2675         int ret;
2676         void *wdev_priv;
2677         struct wiphy *wiphy;
2678         struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA];
2679         u8 *country_code;
2680         u32 thr, retry;
2681
2682         /* create a new wiphy for use with cfg80211 */
2683         wiphy = wiphy_new(&mwifiex_cfg80211_ops,
2684                           sizeof(struct mwifiex_adapter *));
2685         if (!wiphy) {
2686                 dev_err(adapter->dev, "%s: creating new wiphy\n", __func__);
2687                 return -ENOMEM;
2688         }
2689         wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH;
2690         wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN;
2691         wiphy->mgmt_stypes = mwifiex_mgmt_stypes;
2692         wiphy->max_remain_on_channel_duration = 5000;
2693         wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2694                                  BIT(NL80211_IFTYPE_ADHOC) |
2695                                  BIT(NL80211_IFTYPE_P2P_CLIENT) |
2696                                  BIT(NL80211_IFTYPE_P2P_GO) |
2697                                  BIT(NL80211_IFTYPE_AP);
2698
2699         wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz;
2700         if (adapter->config_bands & BAND_A)
2701                 wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz;
2702         else
2703                 wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
2704
2705         wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta;
2706         wiphy->n_iface_combinations = 1;
2707
2708         /* Initialize cipher suits */
2709         wiphy->cipher_suites = mwifiex_cipher_suites;
2710         wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites);
2711
2712         memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN);
2713         wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
2714         wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME |
2715                         WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD |
2716                         WIPHY_FLAG_AP_UAPSD |
2717                         WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
2718         wiphy->regulatory_flags |=
2719                         REGULATORY_CUSTOM_REG |
2720                         REGULATORY_STRICT_REG;
2721
2722         wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom);
2723
2724 #ifdef CONFIG_PM
2725         wiphy->wowlan = &mwifiex_wowlan_support;
2726 #endif
2727
2728         wiphy->coalesce = &mwifiex_coalesce_support;
2729
2730         wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS |
2731                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 |
2732                                     NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P;
2733
2734         wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1;
2735         wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1;
2736
2737         wiphy->features |= NL80211_FEATURE_HT_IBSS |
2738                            NL80211_FEATURE_INACTIVITY_TIMER |
2739                            NL80211_FEATURE_LOW_PRIORITY_SCAN;
2740
2741         /* Reserve space for mwifiex specific private data for BSS */
2742         wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv);
2743
2744         wiphy->reg_notifier = mwifiex_reg_notifier;
2745
2746         /* Set struct mwifiex_adapter pointer in wiphy_priv */
2747         wdev_priv = wiphy_priv(wiphy);
2748         *(unsigned long *)wdev_priv = (unsigned long)adapter;
2749
2750         set_wiphy_dev(wiphy, priv->adapter->dev);
2751
2752         ret = wiphy_register(wiphy);
2753         if (ret < 0) {
2754                 dev_err(adapter->dev,
2755                         "%s: wiphy_register failed: %d\n", __func__, ret);
2756                 wiphy_free(wiphy);
2757                 return ret;
2758         }
2759
2760         if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) {
2761                 wiphy_info(wiphy, "driver hint alpha2: %2.2s\n", reg_alpha2);
2762                 regulatory_hint(wiphy, reg_alpha2);
2763         } else {
2764                 country_code = mwifiex_11d_code_2_region(adapter->region_code);
2765                 if (country_code)
2766                         wiphy_info(wiphy, "ignoring F/W country code %2.2s\n",
2767                                    country_code);
2768         }
2769
2770         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2771                               HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr);
2772         wiphy->frag_threshold = thr;
2773         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2774                               HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr);
2775         wiphy->rts_threshold = thr;
2776         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2777                               HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry);
2778         wiphy->retry_short = (u8) retry;
2779         mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB,
2780                               HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry);
2781         wiphy->retry_long = (u8) retry;
2782
2783         adapter->wiphy = wiphy;
2784         return ret;
2785 }