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